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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Background</span><p id="par0005" class="elsevierStylePara elsevierViewall">Heart failure &#40;HF&#41; is a major&#44; worldwide epidemiological problem due to its high associated mortality and morbidity<a class="elsevierStyleCrossRef" href="#bib0145"><span class="elsevierStyleSup">1</span></a> and considerable consumption of healthcare resources&#44; especially by elderly patients&#46;<a class="elsevierStyleCrossRefs" href="#bib0150"><span class="elsevierStyleSup">2&#44;3</span></a> Type 2 diabetes mellitus &#40;DM2&#41; for its part has increased in prevalence&#44; with the number of individuals with diabetes quadrupling in the last 30 years and becoming the ninth leading cause of death&#46;<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">4</span></a> DM2 is a disease that is closely linked to obesity&#44; and its prevalence increases markedly with age&#46;<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">5</span></a> Therefore&#44; the combined diagnoses of DM2 and HF in individual patients has seen an exponential increase&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">Patients with HF have a 4-fold greater rate of DM2 &#40;20&#37;&#41; than patients without HF &#40;4&#8211;6&#37;&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">8</span></a> In patients hospitalized for HF&#44; the proportion of DM2 cases increases up to 40&#37; and even further in the internal medicine setting &#40;45&#37;&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0185"><span class="elsevierStyleSup">9</span></a> Moreover&#44; patients with DM2 have a 75&#37; greater risk of cardiovascular death&#44; which generally develops early &#40;mean of 14&#46;6 years earlier&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">4</span></a> The risk of developing HF is also multiplied 2&#46;5-fold for patients with DM2&#44;<a class="elsevierStyleCrossRef" href="#bib0190"><span class="elsevierStyleSup">10</span></a> and hospitalization for HF is increased in patients with diabetes compared with those without DM2&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> In patients with asymptomatic left ventricular systolic dysfunction&#44; DM2 is associated with a greater risk of developing HF&#46;<a class="elsevierStyleCrossRef" href="#bib0195"><span class="elsevierStyleSup">11</span></a> Authors have also suggested that HF increases the risk of developing DM2 and is related to HF severity &#40;defined by the daily dose of loop diuretics&#41; and the risk of developing DM2&#46;<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">12</span></a> There is therefore a two-way association between HF and DM2&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7&#44;13</span></a></p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Clinical implications of the coexistence of heart failure and type 2 diabetes mellitus</span><p id="par0015" class="elsevierStylePara elsevierViewall">In terms of symptoms&#44; patients with DM2 have a poorer New York Heart Association functional class and more HR-related signs and symptoms than patients without DM2&#44; 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there is a diabetic cardiomyopathy that differs from the ischemic and hypertensive&#44; which is secondary to the direct effects of the metabolic disorders of DM2 on myocardial function &#40;microangiopathic&#44; mitochondrial energy metabolism disorders&#44; structural dysfunction&#41;&#46; DM2 mainly aggravates the diastolic dysfunction in HF&#44; increasing stiffness and left ventricular volume&#46; The diagnosis of diabetic cardiomyopathy requires a history of DM2 that has progressed for years&#44; poor metabolic control and ruling out other causes&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7&#44;13</span></a> Two phenotypes have been described&#59; initially&#44; reports indicated that the phenotype was dilated&#44; especially in patients with microvascular disease&#46; Subsequently&#44; there was a greater tendency to consider the phenotype restrictive in women with obesity and poor DM control&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> The mechanisms by which DM2 affects the left ventricle differ between HFpEF and HFrEF&#46; Hyperglycemia&#44; hyperinsulinemia and lipotoxicity predispose patients to myocardial restriction&#44; and autoimmunity predisposes patients to dilated cardiomyopathy&#46; Endothelial dysfunction in the coronary microvasculature predominates in HFpEF and is triggered by the comorbidity-related inflammation&#44; while the loss of cardiomyocytes due to ischemia or toxic agents predominates in HFrEF&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> Interstitial and perivascular myocardial fibrosis also seem to play a role&#44; as does the increased production of advanced glycosylation end products&#44; increasing collagen stiffness and with it the diastolic stiffness in diabetic cardiomyopathy&#46; The presence of fibrosis&#44; although relevant for both phenotypes&#44; appears to be more significant in dilated HF&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> Autonomic neuropathy and calcium homeostasis disorders can also be a nexus between DM2 and the onset of HF&#46;<a class="elsevierStyleCrossRef" href="#bib0205"><span class="elsevierStyleSup">13</span></a></p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">How and with what should diabetes mellitus be treated in patients with heart failure&#63;</span><p id="par0025" class="elsevierStylePara elsevierViewall">Gradual glycemic control should be implemented for patients with DM and HF&#44; giving preference to drugs that have been shown to be safe and effective&#44;<a class="elsevierStyleCrossRef" href="#bib0220"><span class="elsevierStyleSup">16</span></a> such as metformin&#44; without overlooking appropriate diets and exercise&#46; Contrary to earlier assumptions&#44; metformin is safe for patients with HF and is therefore also the treatment of choice for patients with DM and HF&#44; although renal function should always be monitored&#44; given that metformin is contraindicated for patients with advanced renal or hepatic failure due to the risk of lactic acidosis&#46; There are retrospective and cohort studies with metformin that have suggested a reduction in cardiovascular morbidity and mortality in patients with diabetes with or without HF&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> However&#44; there are no studies that have shown the safety of sulfonylureas in patients with HF&#59; sulfonylureas are therefore not recommended for general use&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7</span></a></p><p id="par0030" class="elsevierStylePara elsevierViewall">In terms of glitazones&#44; the peroxisome proliferator-activated receptor gamma agonist effect could be beneficial for diastolic dysfunction&#59; however&#44; glitazones cause fluid retention and can therefore worsen the HF or increase the rate of new cases of HF&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> Clinical practice registries and cardiovascular safety studies have shown the neutrality of incretin mimetics when administered to patients with HF&#46; A study with 1&#44;499&#44;650 patients&#44; 29&#44;741 of whom were hospitalized for HF&#47;year&#44; reported that the hospitalization rates for HF did not increase with the use of drugs based on incretin therapies compared with patients administered metformin and&#47;or sulfonylureas&#46; This effect did not occur either in patients with a history of HF or those who had no history of HF&#46; The results for HF were similar for dipeptidyl peptidase-4 inhibitors and glucagon-like peptide 1 analogs &#40;GLP-1&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0225"><span class="elsevierStyleSup">17</span></a> A number of GLP-1 analogs&#44; such as liraglutide and semaglutide&#44; have however shown a reduction in cardiovascular events&#46; In the SAVOR-TIMI 53 study&#44; saxagliptin did increase the rate of hospitalization for HF for patients with at least 2 other additional risk factors&#58; a glomerular filtration rate &#8804;60<span class="elsevierStyleHsp" style=""></span>mL&#47;min&#47;m<span class="elsevierStyleSup">2</span>&#44; a higher amino-terminal fragment of the brain natriuretic peptide concentration &#40;&#62;332<span class="elsevierStyleHsp" style=""></span>pg&#47;mL&#41; and previous HF&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7&#44;18</span></a></p><p id="par0035" class="elsevierStylePara elsevierViewall">One family of hypoglycemic agents that has shown major results in HF is that of the sodium-glucose cotransporter-2 &#40;SGLT2&#41; inhibitors&#46; The pivotal study with empagliflozin &#40;EMPAREG-OUTCOME&#41; showed a 35&#37; reduction in the relative risk &#40;RR&#41; of hospitalization for HF &#40;HR&#44; 0&#46;65&#59; 95&#37; CI 0&#46;50&#8211;0&#46;85&#59; <span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>&#46;002&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">19</span></a> These results were independent of HbA1c levels before and during the study&#46;<a class="elsevierStyleCrossRef" href="#bib0240"><span class="elsevierStyleSup">20</span></a> A post hoc analysis showed a combined reduction in hospitalizations for HF and cardiovascular mortality&#44; regardless of the HF treatment&#46; However&#44; this benefit was mainly observed in the patients with no prior history of HF&#44; i&#46;e&#46;&#44; incident HF&#46;<a class="elsevierStyleCrossRef" href="#bib0245"><span class="elsevierStyleSup">21</span></a> The CANVAS study &#40;canagliflozin&#41; also observed a reduction in hospitalizations for HF &#40;HR&#44; 0&#46;67&#59; 95&#37; CI 0&#46;52&#8211;0&#46;87&#59; <span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>&#46;001&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0250"><span class="elsevierStyleSup">22</span></a> When the HF data were analyzed&#44; canagliflozin was observed to reduce the number of hospitalizations for HF and the rate of cardiovascular death&#59; however&#44; these benefits were greater in the patients with a prior history of HF&#46; Recently&#44; the DECLARE-TIME 58<a class="elsevierStyleCrossRef" href="#bib0255"><span class="elsevierStyleSup">23</span></a> study with dapagliflozin confirmed the beneficial effect of SGLT2 inhibitors on hospitalizations for HF&#44; suggesting the presence of a class effect for HF&#46; An important aspect to consider is that the prevalence of HF established in these studies was relatively low&#46; The percentage of patients with HF at the start of the study was 10&#37; for EMPA-REG&#44; 11&#46;9&#37; for CANVAS and 9&#46;9&#37; for DECLARE&#46; Thus&#44; the evidence on the benefit of these drugs for patients with established HF is still weak&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">Research is ongoing into the pathophysiological mechanisms of SGLT2 inhibitors that can explain the inhibitors&#8217; effects and whether their protective effect in HF is only for patients with diabetes or is generalizable to patients without DM&#46; There are clinical trials underway with patients without diabetes that should provide answers to these topics&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">In DM2&#44; the use of insulin is usually a marker of the long-term nature and severity of the DM and cannot therefore be directly related to adverse cardiovascular events&#46; Although insulin increases myocardial blood flow&#44; it decreases the heart rate and slightly improves the cardiac output&#46; Insulin is a hormone with a high sodium retention capacity and when combined with reduced glycosuria can exacerbate fluid retention and worsen the HF&#46;<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">24</span></a> Nevertheless&#44; insulin&#39;s safety has been demonstrated in studies with new insulins&#46; Thus&#44; the safety of insulin glargine was demonstrated with the publication of the ORIGIN study&#44; which observed no increase in hospitalizations for HF&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">25</span></a> Likewise&#44; insulin degludec showed its noninferiority versus insulin glargine in preventing cardiovascular events&#46;<a class="elsevierStyleCrossRef" href="#bib0270"><span class="elsevierStyleSup">26</span></a></p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Treatment of heart failure in patients with type 2 diabetes mellitus</span><p id="par0050" class="elsevierStylePara elsevierViewall">In terms of HF treatment for patients with DM2&#44; there are no specific differences in the guidelines compared with patient without diabetes&#46; In the clinical trials&#44; all drugs and devices for HF were equally effective&#44; regardless of whether the patients had DM or not&#46; To date&#44; clinical trials have not been conducted on HF treatment that include only patients with DM2&#44; and the available evidence is derived from subanalyses of mixed populations&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7</span></a> There have been intriguing reports that the dual inhibition of the renin&#8211;angiotensin system and neprilysin could lead to better glycemic control&#44; given that neprilysin contributes to the degradation of endogenous GLP-1&#46;<a class="elsevierStyleCrossRef" href="#bib0275"><span class="elsevierStyleSup">27</span></a></p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Conclusion</span><p id="par0055" class="elsevierStylePara elsevierViewall">In summary&#44; HF and diabetes coexist in many patients with a pathophysiological mechanism that favors the conditions&#46; For patients with diabetes and HF&#44; there are drugs such as SGLT2 inhibitors for treating DM&#44; with excellent cardiovascular safety profiles and that help reduce cardiac readmissions&#46; In terms of the future&#44; it would be of great interest to know the results of ongoing studies designed specifically for this goal<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">28</span></a> and that even include patients without DM2&#46;</p></span></span>"
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        4 => array:2 [
          "identificador" => "sec0005"
          "titulo" => "Background"
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        5 => array:2 [
          "identificador" => "sec0010"
          "titulo" => "Clinical implications of the coexistence of heart failure and type 2 diabetes mellitus"
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        6 => array:2 [
          "identificador" => "sec0015"
          "titulo" => "Pathophysiological implications of the coexistence of heart failure and type 2 diabetes mellitus"
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          "identificador" => "sec0020"
          "titulo" => "How and with what should diabetes mellitus be treated in patients with heart failure&#63;"
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          "identificador" => "sec0025"
          "titulo" => "Treatment of heart failure in patients with type 2 diabetes mellitus"
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        9 => array:2 [
          "identificador" => "sec0030"
          "titulo" => "Conclusion"
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        10 => array:1 [
          "titulo" => "References"
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    "fechaRecibido" => "2018-12-17"
    "fechaAceptado" => "2019-01-08"
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          "clase" => "keyword"
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            0 => "Heart failure"
            1 => "Type 2 diabetes mellitus"
            2 => "SGLT2 inhibitors"
          ]
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          "clase" => "keyword"
          "titulo" => "Palabras clave"
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          "palabras" => array:3 [
            0 => "Insuficiencia cardiaca"
            1 => "Diabetes mellitus tipo 2"
            2 => "Inhibidores SGLT2"
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        "titulo" => "Abstract"
        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">There is a bidirectional association between heart failure &#40;HF&#41; and type 2 diabetes mellitus &#40;DM2&#41;&#44; which has resulted in an exponential increase in the combination of the 2 diseases in a single patient&#46; This combination is one of many common causes that lead to the pathophysiological pathways resulting in the deleterious effect of DM2 on HF&#46; The inevitable clinical consequence is that&#44; when faced with this situation&#44; patients present worse symptoms and a poorer prognosis than patients with HF but without DM2&#46;</p><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">We should therefore consider how to treat DM2 in patients with HF and how to treat HF in patients with DM2&#46; In this review&#44; we highlight the latest published data on this issue&#46;</p></span>"
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      "es" => array:2 [
        "titulo" => "Resumen"
        "resumen" => "<span id="abst0010" class="elsevierStyleSection elsevierViewall"><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Existe una asociaci&#243;n bidireccional entre la insuficiencia cardiaca &#40;IC&#41; y la diabetes mellitus tipo 2 &#40;DM2&#41; que hace que la combinaci&#243;n de ambas enfermedades en un mismo paciente haya pasado a tener un incremento exponencial&#46; Dicha combinaci&#243;n&#44; parte de m&#250;ltiples causas comunes que llevan a v&#237;as fisiopatol&#243;gicas que resultan en un efecto delet&#233;reo de la DM2 sobre la IC&#46; La consecuencia cl&#237;nica inevitable es que ante dicha situaci&#243;n el paciente presente peor cl&#237;nica y peor pron&#243;stico que el paciente con IC sin DM2&#46;</p><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Por todo ello debemos tener en cuenta c&#243;mo tratar la DM2 en pacientes con IC&#44; y c&#243;mo tratar la IC en pacientes con DM2&#46; En esta revisi&#243;n se hace hincapi&#233; en los &#250;ltimos datos publicados al respecto&#46;</p></span>"
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      0 => array:2 [
        "etiqueta" => "&#9734;"
        "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Please cite this article as&#58; Formiga F&#44; Camafort M&#44; Carrasco S&#225;nchez FJ&#46; Insuficiencia cardiaca y diabetes&#58; la confrontaci&#243;n de dos grandes epidemias del siglo <span class="elsevierStyleSmallCaps">xxi</span>&#46; Rev Clin Esp&#46; 2020&#59;220&#58;135&#8211;138&#46;</p>"
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      "titulo" => "References"
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                            0 => "Y&#46; Zheng"
                            1 => "S&#46;H&#46; Ley"
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                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
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                            0 => "R&#46; G&#243;mez-Huelgas"
                            1 => "F&#46; G&#243;mez Peralta"
                            2 => "L&#46; Rodr&#237;guez Ma&#241;as"
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                          ]
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                      "doi" => "10.1016/j.regg.2017.12.003"
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                        "tituloSerie" => "Rev Esp Geriatr Gerontol"
                        "fecha" => "2018"
                        "volumen" => "53"
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                            "url" => "https://www.ncbi.nlm.nih.gov/pubmed/29439834"
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              "identificador" => "bib0170"
              "etiqueta" => "6"
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                  "contribucion" => array:1 [
                    0 => array:2 [
                      "titulo" => "Heart failure and diabetes&#58; metabolic alterations and therapeutic interventions&#58; a state-of-the-art review from the Translational Research Committee of the Heart Failure Association-European Society of Cardiology"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
                          "autores" => array:6 [
                            0 => "C&#46; Maack"
                            1 => "M&#46; Lehrke"
                            2 => "J&#46; Backs"
                            3 => "F&#46;R&#46; Heinzel"
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                          ]
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                      "Revista" => array:6 [
                        "tituloSerie" => "Eur Heart J"
                        "fecha" => "2018"
                        "volumen" => "39"
                        "paginaInicial" => "4243"
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                      "titulo" => "Type 2 diabetes mellitus and heart failure&#58; a position statement from the Heart Failure Association of the European Society of Cardiology"
                      "autores" => array:1 [
                        0 => array:2 [
                          "etal" => true
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                            0 => "P&#46;M&#46; Seferovi&#263;"
                            1 => "M&#46;C&#46; Petrie"
                            2 => "G&#46;S&#46; Filippatos"
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Review
Heart failure and diabetes: The confrontation of two major epidemics of the 21st century
Insuficiencia cardiaca y diabetes: la confrontación de dos grandes epidemias del siglo xxi
F. Formigaa, M. Camafortb,
Corresponding author
camafort@clinic.ub.es

Corresponding author.
, F.J. Carrasco Sánchezc,d
a Servicio de Medicina Interna, Hospital Universitario de Bellvitge, IDIBELL, L’Hospitalet de Llobregat, Barcelona, Spain
b Servicio de Medicina Interna, Hospital Clínic, IDIBAPS, Universidad de Barcelona, Barcelona, Spain
c Unidad de Gestión Clínica de Medicina Interna y Cuidados Paliativos, Hospital Universitario Juan Ramón Jimenez, Huelva, Spain
d Grupo de Trabajo Diabetes, Obesidad y Nutrición de la Sociedad Española de Medicina Interna
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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Background</span><p id="par0005" class="elsevierStylePara elsevierViewall">Heart failure &#40;HF&#41; is a major&#44; worldwide epidemiological problem due to its high associated mortality and morbidity<a class="elsevierStyleCrossRef" href="#bib0145"><span class="elsevierStyleSup">1</span></a> and considerable consumption of healthcare resources&#44; especially by elderly patients&#46;<a class="elsevierStyleCrossRefs" href="#bib0150"><span class="elsevierStyleSup">2&#44;3</span></a> Type 2 diabetes mellitus &#40;DM2&#41; for its part has increased in prevalence&#44; with the number of individuals with diabetes quadrupling in the last 30 years and becoming the ninth leading cause of death&#46;<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">4</span></a> DM2 is a disease that is closely linked to obesity&#44; and its prevalence increases markedly with age&#46;<a class="elsevierStyleCrossRef" href="#bib0165"><span class="elsevierStyleSup">5</span></a> Therefore&#44; the combined diagnoses of DM2 and HF in individual patients has seen an exponential increase&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">Patients with HF have a 4-fold greater rate of DM2 &#40;20&#37;&#41; than patients without HF &#40;4&#8211;6&#37;&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0180"><span class="elsevierStyleSup">8</span></a> In patients hospitalized for HF&#44; the proportion of DM2 cases increases up to 40&#37; and even further in the internal medicine setting &#40;45&#37;&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0185"><span class="elsevierStyleSup">9</span></a> Moreover&#44; patients with DM2 have a 75&#37; greater risk of cardiovascular death&#44; which generally develops early &#40;mean of 14&#46;6 years earlier&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">4</span></a> The risk of developing HF is also multiplied 2&#46;5-fold for patients with DM2&#44;<a class="elsevierStyleCrossRef" href="#bib0190"><span class="elsevierStyleSup">10</span></a> and hospitalization for HF is increased in patients with diabetes compared with those without DM2&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> In patients with asymptomatic left ventricular systolic dysfunction&#44; DM2 is associated with a greater risk of developing HF&#46;<a class="elsevierStyleCrossRef" href="#bib0195"><span class="elsevierStyleSup">11</span></a> Authors have also suggested that HF increases the risk of developing DM2 and is related to HF severity &#40;defined by the daily dose of loop diuretics&#41; and the risk of developing DM2&#46;<a class="elsevierStyleCrossRef" href="#bib0200"><span class="elsevierStyleSup">12</span></a> There is therefore a two-way association between HF and DM2&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7&#44;13</span></a></p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0030">Clinical implications of the coexistence of heart failure and type 2 diabetes mellitus</span><p id="par0015" class="elsevierStylePara elsevierViewall">In terms of symptoms&#44; patients with DM2 have a poorer New York Heart Association functional class and more HR-related signs and symptoms than patients without DM2&#44; despite a similar left ventricular ejection fraction &#40;LVEF&#41;&#44; which holds true for both HF with reduced LVEF &#40;HFrEF&#41; and HF with preserved LVEF &#40;HFpEF&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0175"><span class="elsevierStyleSup">7</span></a> Poorer quality of life has been reported for patients with concomitant DM2 and HF &#40;both HFrEF and HFpEF&#41;&#44; compared with patients without DM2&#46;<a class="elsevierStyleCrossRef" href="#bib0175"><span class="elsevierStyleSup">7</span></a> The presence of DM2 in patients with HF also has a major effect in worsening the prognosis when compared with the absence of DM2&#44; both in terms of mortality and readmissions&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7&#44;14</span></a> In terms of controlling the diabetes &#40;defined by glycated hemoglobin &#91;HbA1c&#93; levels&#41;&#44; there is a U-shaped relationship with regard to all-cause mortality&#44; i&#46;e&#46;&#44; those patients with very high or very low HbA1c levels have a greater HF mortality risk&#44; with the lowest risk for HbA1c between 7&#46;1&#37; and 8&#46;0&#37;&#46;<a class="elsevierStyleCrossRef" href="#bib0210"><span class="elsevierStyleSup">14</span></a> This relationship showed greater consistency with high HbA1c readings in the studies&#46; As shown by the <span class="elsevierStyleItalic">PARADIGM-HF</span> study&#44; <span class="elsevierStyleItalic">patients with prediabetes had a greater mortality risk than patients without diabetes</span>&#46;<a class="elsevierStyleCrossRef" href="#bib0215"><span class="elsevierStyleSup">15</span></a></p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Pathophysiological implications of the coexistence of heart failure and type 2 diabetes mellitus</span><p id="par0020" class="elsevierStylePara elsevierViewall">There are numerous causes that explain the association between DM2 and HF&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7&#44;13</span></a> Although diabetic macroangiopathy causes abnormalities in coronary arteries and myocardial ischemia&#44; there is a diabetic cardiomyopathy that differs from the ischemic and hypertensive&#44; which is secondary to the direct effects of the metabolic disorders of DM2 on myocardial function &#40;microangiopathic&#44; mitochondrial energy metabolism disorders&#44; structural dysfunction&#41;&#46; DM2 mainly aggravates the diastolic dysfunction in HF&#44; increasing stiffness and left ventricular volume&#46; The diagnosis of diabetic cardiomyopathy requires a history of DM2 that has progressed for years&#44; poor metabolic control and ruling out other causes&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7&#44;13</span></a> Two phenotypes have been described&#59; initially&#44; reports indicated that the phenotype was dilated&#44; especially in patients with microvascular disease&#46; Subsequently&#44; there was a greater tendency to consider the phenotype restrictive in women with obesity and poor DM control&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> The mechanisms by which DM2 affects the left ventricle differ between HFpEF and HFrEF&#46; Hyperglycemia&#44; hyperinsulinemia and lipotoxicity predispose patients to myocardial restriction&#44; and autoimmunity predisposes patients to dilated cardiomyopathy&#46; Endothelial dysfunction in the coronary microvasculature predominates in HFpEF and is triggered by the comorbidity-related inflammation&#44; while the loss of cardiomyocytes due to ischemia or toxic agents predominates in HFrEF&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> Interstitial and perivascular myocardial fibrosis also seem to play a role&#44; as does the increased production of advanced glycosylation end products&#44; increasing collagen stiffness and with it the diastolic stiffness in diabetic cardiomyopathy&#46; The presence of fibrosis&#44; although relevant for both phenotypes&#44; appears to be more significant in dilated HF&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> Autonomic neuropathy and calcium homeostasis disorders can also be a nexus between DM2 and the onset of HF&#46;<a class="elsevierStyleCrossRef" href="#bib0205"><span class="elsevierStyleSup">13</span></a></p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">How and with what should diabetes mellitus be treated in patients with heart failure&#63;</span><p id="par0025" class="elsevierStylePara elsevierViewall">Gradual glycemic control should be implemented for patients with DM and HF&#44; giving preference to drugs that have been shown to be safe and effective&#44;<a class="elsevierStyleCrossRef" href="#bib0220"><span class="elsevierStyleSup">16</span></a> such as metformin&#44; without overlooking appropriate diets and exercise&#46; Contrary to earlier assumptions&#44; metformin is safe for patients with HF and is therefore also the treatment of choice for patients with DM and HF&#44; although renal function should always be monitored&#44; given that metformin is contraindicated for patients with advanced renal or hepatic failure due to the risk of lactic acidosis&#46; There are retrospective and cohort studies with metformin that have suggested a reduction in cardiovascular morbidity and mortality in patients with diabetes with or without HF&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> However&#44; there are no studies that have shown the safety of sulfonylureas in patients with HF&#59; sulfonylureas are therefore not recommended for general use&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7</span></a></p><p id="par0030" class="elsevierStylePara elsevierViewall">In terms of glitazones&#44; the peroxisome proliferator-activated receptor gamma agonist effect could be beneficial for diastolic dysfunction&#59; however&#44; glitazones cause fluid retention and can therefore worsen the HF or increase the rate of new cases of HF&#46;<a class="elsevierStyleCrossRef" href="#bib0170"><span class="elsevierStyleSup">6</span></a> Clinical practice registries and cardiovascular safety studies have shown the neutrality of incretin mimetics when administered to patients with HF&#46; A study with 1&#44;499&#44;650 patients&#44; 29&#44;741 of whom were hospitalized for HF&#47;year&#44; reported that the hospitalization rates for HF did not increase with the use of drugs based on incretin therapies compared with patients administered metformin and&#47;or sulfonylureas&#46; This effect did not occur either in patients with a history of HF or those who had no history of HF&#46; The results for HF were similar for dipeptidyl peptidase-4 inhibitors and glucagon-like peptide 1 analogs &#40;GLP-1&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0225"><span class="elsevierStyleSup">17</span></a> A number of GLP-1 analogs&#44; such as liraglutide and semaglutide&#44; have however shown a reduction in cardiovascular events&#46; In the SAVOR-TIMI 53 study&#44; saxagliptin did increase the rate of hospitalization for HF for patients with at least 2 other additional risk factors&#58; a glomerular filtration rate &#8804;60<span class="elsevierStyleHsp" style=""></span>mL&#47;min&#47;m<span class="elsevierStyleSup">2</span>&#44; a higher amino-terminal fragment of the brain natriuretic peptide concentration &#40;&#62;332<span class="elsevierStyleHsp" style=""></span>pg&#47;mL&#41; and previous HF&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7&#44;18</span></a></p><p id="par0035" class="elsevierStylePara elsevierViewall">One family of hypoglycemic agents that has shown major results in HF is that of the sodium-glucose cotransporter-2 &#40;SGLT2&#41; inhibitors&#46; The pivotal study with empagliflozin &#40;EMPAREG-OUTCOME&#41; showed a 35&#37; reduction in the relative risk &#40;RR&#41; of hospitalization for HF &#40;HR&#44; 0&#46;65&#59; 95&#37; CI 0&#46;50&#8211;0&#46;85&#59; <span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>&#46;002&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0235"><span class="elsevierStyleSup">19</span></a> These results were independent of HbA1c levels before and during the study&#46;<a class="elsevierStyleCrossRef" href="#bib0240"><span class="elsevierStyleSup">20</span></a> A post hoc analysis showed a combined reduction in hospitalizations for HF and cardiovascular mortality&#44; regardless of the HF treatment&#46; However&#44; this benefit was mainly observed in the patients with no prior history of HF&#44; i&#46;e&#46;&#44; incident HF&#46;<a class="elsevierStyleCrossRef" href="#bib0245"><span class="elsevierStyleSup">21</span></a> The CANVAS study &#40;canagliflozin&#41; also observed a reduction in hospitalizations for HF &#40;HR&#44; 0&#46;67&#59; 95&#37; CI 0&#46;52&#8211;0&#46;87&#59; <span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>&#46;001&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0250"><span class="elsevierStyleSup">22</span></a> When the HF data were analyzed&#44; canagliflozin was observed to reduce the number of hospitalizations for HF and the rate of cardiovascular death&#59; however&#44; these benefits were greater in the patients with a prior history of HF&#46; Recently&#44; the DECLARE-TIME 58<a class="elsevierStyleCrossRef" href="#bib0255"><span class="elsevierStyleSup">23</span></a> study with dapagliflozin confirmed the beneficial effect of SGLT2 inhibitors on hospitalizations for HF&#44; suggesting the presence of a class effect for HF&#46; An important aspect to consider is that the prevalence of HF established in these studies was relatively low&#46; The percentage of patients with HF at the start of the study was 10&#37; for EMPA-REG&#44; 11&#46;9&#37; for CANVAS and 9&#46;9&#37; for DECLARE&#46; Thus&#44; the evidence on the benefit of these drugs for patients with established HF is still weak&#46;</p><p id="par0040" class="elsevierStylePara elsevierViewall">Research is ongoing into the pathophysiological mechanisms of SGLT2 inhibitors that can explain the inhibitors&#8217; effects and whether their protective effect in HF is only for patients with diabetes or is generalizable to patients without DM&#46; There are clinical trials underway with patients without diabetes that should provide answers to these topics&#46;</p><p id="par0045" class="elsevierStylePara elsevierViewall">In DM2&#44; the use of insulin is usually a marker of the long-term nature and severity of the DM and cannot therefore be directly related to adverse cardiovascular events&#46; Although insulin increases myocardial blood flow&#44; it decreases the heart rate and slightly improves the cardiac output&#46; Insulin is a hormone with a high sodium retention capacity and when combined with reduced glycosuria can exacerbate fluid retention and worsen the HF&#46;<a class="elsevierStyleCrossRef" href="#bib0260"><span class="elsevierStyleSup">24</span></a> Nevertheless&#44; insulin&#39;s safety has been demonstrated in studies with new insulins&#46; Thus&#44; the safety of insulin glargine was demonstrated with the publication of the ORIGIN study&#44; which observed no increase in hospitalizations for HF&#46;<a class="elsevierStyleCrossRef" href="#bib0265"><span class="elsevierStyleSup">25</span></a> Likewise&#44; insulin degludec showed its noninferiority versus insulin glargine in preventing cardiovascular events&#46;<a class="elsevierStyleCrossRef" href="#bib0270"><span class="elsevierStyleSup">26</span></a></p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Treatment of heart failure in patients with type 2 diabetes mellitus</span><p id="par0050" class="elsevierStylePara elsevierViewall">In terms of HF treatment for patients with DM2&#44; there are no specific differences in the guidelines compared with patient without diabetes&#46; In the clinical trials&#44; all drugs and devices for HF were equally effective&#44; regardless of whether the patients had DM or not&#46; To date&#44; clinical trials have not been conducted on HF treatment that include only patients with DM2&#44; and the available evidence is derived from subanalyses of mixed populations&#46;<a class="elsevierStyleCrossRefs" href="#bib0170"><span class="elsevierStyleSup">6&#44;7</span></a> There have been intriguing reports that the dual inhibition of the renin&#8211;angiotensin system and neprilysin could lead to better glycemic control&#44; given that neprilysin contributes to the degradation of endogenous GLP-1&#46;<a class="elsevierStyleCrossRef" href="#bib0275"><span class="elsevierStyleSup">27</span></a></p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Conclusion</span><p id="par0055" class="elsevierStylePara elsevierViewall">In summary&#44; HF and diabetes coexist in many patients with a pathophysiological mechanism that favors the conditions&#46; For patients with diabetes and HF&#44; there are drugs such as SGLT2 inhibitors for treating DM&#44; with excellent cardiovascular safety profiles and that help reduce cardiac readmissions&#46; In terms of the future&#44; it would be of great interest to know the results of ongoing studies designed specifically for this goal<a class="elsevierStyleCrossRef" href="#bib0280"><span class="elsevierStyleSup">28</span></a> and that even include patients without DM2&#46;</p></span></span>"
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          "titulo" => "Palabras clave"
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        4 => array:2 [
          "identificador" => "sec0005"
          "titulo" => "Background"
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        5 => array:2 [
          "identificador" => "sec0010"
          "titulo" => "Clinical implications of the coexistence of heart failure and type 2 diabetes mellitus"
        ]
        6 => array:2 [
          "identificador" => "sec0015"
          "titulo" => "Pathophysiological implications of the coexistence of heart failure and type 2 diabetes mellitus"
        ]
        7 => array:2 [
          "identificador" => "sec0020"
          "titulo" => "How and with what should diabetes mellitus be treated in patients with heart failure&#63;"
        ]
        8 => array:2 [
          "identificador" => "sec0025"
          "titulo" => "Treatment of heart failure in patients with type 2 diabetes mellitus"
        ]
        9 => array:2 [
          "identificador" => "sec0030"
          "titulo" => "Conclusion"
        ]
        10 => array:1 [
          "titulo" => "References"
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      ]
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    "fechaRecibido" => "2018-12-17"
    "fechaAceptado" => "2019-01-08"
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          "clase" => "keyword"
          "titulo" => "Keywords"
          "identificador" => "xpalclavsec1209184"
          "palabras" => array:3 [
            0 => "Heart failure"
            1 => "Type 2 diabetes mellitus"
            2 => "SGLT2 inhibitors"
          ]
        ]
      ]
      "es" => array:1 [
        0 => array:4 [
          "clase" => "keyword"
          "titulo" => "Palabras clave"
          "identificador" => "xpalclavsec1209185"
          "palabras" => array:3 [
            0 => "Insuficiencia cardiaca"
            1 => "Diabetes mellitus tipo 2"
            2 => "Inhibidores SGLT2"
          ]
        ]
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    "resumen" => array:2 [
      "en" => array:2 [
        "titulo" => "Abstract"
        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">There is a bidirectional association between heart failure &#40;HF&#41; and type 2 diabetes mellitus &#40;DM2&#41;&#44; which has resulted in an exponential increase in the combination of the 2 diseases in a single patient&#46; This combination is one of many common causes that lead to the pathophysiological pathways resulting in the deleterious effect of DM2 on HF&#46; The inevitable clinical consequence is that&#44; when faced with this situation&#44; patients present worse symptoms and a poorer prognosis than patients with HF but without DM2&#46;</p><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">We should therefore consider how to treat DM2 in patients with HF and how to treat HF in patients with DM2&#46; In this review&#44; we highlight the latest published data on this issue&#46;</p></span>"
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      "es" => array:2 [
        "titulo" => "Resumen"
        "resumen" => "<span id="abst0010" class="elsevierStyleSection elsevierViewall"><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Existe una asociaci&#243;n bidireccional entre la insuficiencia cardiaca &#40;IC&#41; y la diabetes mellitus tipo 2 &#40;DM2&#41; que hace que la combinaci&#243;n de ambas enfermedades en un mismo paciente haya pasado a tener un incremento exponencial&#46; Dicha combinaci&#243;n&#44; parte de m&#250;ltiples causas comunes que llevan a v&#237;as fisiopatol&#243;gicas que resultan en un efecto delet&#233;reo de la DM2 sobre la IC&#46; La consecuencia cl&#237;nica inevitable es que ante dicha situaci&#243;n el paciente presente peor cl&#237;nica y peor pron&#243;stico que el paciente con IC sin DM2&#46;</p><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Por todo ello debemos tener en cuenta c&#243;mo tratar la DM2 en pacientes con IC&#44; y c&#243;mo tratar la IC en pacientes con DM2&#46; En esta revisi&#243;n se hace hincapi&#233; en los &#250;ltimos datos publicados al respecto&#46;</p></span>"
      ]
    ]
    "NotaPie" => array:1 [
      0 => array:2 [
        "etiqueta" => "&#9734;"
        "nota" => "<p class="elsevierStyleNotepara" id="npar0005">Please cite this article as&#58; Formiga F&#44; Camafort M&#44; Carrasco S&#225;nchez FJ&#46; Insuficiencia cardiaca y diabetes&#58; la confrontaci&#243;n de dos grandes epidemias del siglo <span class="elsevierStyleSmallCaps">xxi</span>&#46; Rev Clin Esp&#46; 2020&#59;220&#58;135&#8211;138&#46;</p>"
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    ]
    "bibliografia" => array:2 [
      "titulo" => "References"
      "seccion" => array:1 [
        0 => array:2 [
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                          ]
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                      ]
                    ]
                  ]
                  "host" => array:1 [
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                      "titulo" => "Mensajes clave para la atenci&#243;n inicial del anciano con insuficiencia cardiaca aguda"
                      "autores" => array:1 [
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                            0 => "F&#46;J&#46; Mart&#237;n-S&#225;nchez"
                            1 => "E&#46; Rodr&#237;guez-Adrada"
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                      "titulo" => "Insuficiencia card&#237;aca cr&#243;nica en el paciente anciano"
                      "autores" => array:1 [
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                          "etal" => false
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                            0 => "D&#46; Chivite"
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                        0 => array:2 [
                          "etal" => false
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                            0 => "Y&#46; Zheng"
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Original language: English
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