Alberto Melchor-López

Dr. Alberto Melchor-López

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Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 February 2019 in European Journal of Clinical Investigation
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JSJuan Antonio Suárez-Cuenca
Juan Antonio Suárez-Cuenca
ARAtzin S. Ruíz‐Hernández
Atzin S. Ruíz‐Hernández
AMAna A. Mendoza‐Castañeda
Ana A. Mendoza‐Castañeda
GDGabriela A. Domínguez‐Pérez
Gabriela A. Domínguez‐Pérez
AHAlejandro Hernández‐Patricio
Alejandro Hernández‐Patricio
SASofia L. Alcaráz-Estrada
Sofia L. Alcaráz-Estrada

2 May 2018 in The International Journal of Cardiovascular Imaging
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Journal Article
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JMJulieta D. Morales-Portano
Julieta D. Morales-Portano
JPJuan Ángel Peraza-Zaldivar
Juan Ángel Peraza-Zaldivar
JSJuan Antonio Suárez-Cuenca
Juan Antonio Suárez-Cuenca
RARocío Aceves-Millán
Rocío Aceves-Millán
LALilia Amezcua-Gómez
Lilia Amezcua-Gómez
ARAlberto Francisco Rubio-Guerra
Alberto Francisco Rubio-Guerra
The present study aimed to compare echocardiography measurements of epicardial adipose tissue (EAT) thickness and other risk factors regarding their ability to predict adverse cardiovascular outcomes in patients with coronary artery disease (CAD). Outcomes of 107 patients (86 males, 21 females, mean age 63.6 years old) submitted to diagnostic echocardiography and coronary angiography were prospectively analyzed. EAT (measures over the right ventricle, interventricular groove and complete bulk of EAT) and left ventricle ejection fraction (LVEF) were performed by echocardiography. Coronary complexity was evaluated by Syntax score. Primary endpoints were major adverse cardiovascular events (MACE’s), composite of cardiovascular death, myocardial infarction, unstable angina, intra-stent re-stenosis and episodes of decompensate heart failure requiring hospital attention during a mean follow up of 15.94 ± 3.6 months. Mean EAT thickness was 4.6 ± 1.9 mm; and correlated with Syntax score and body mass index; negatively correlated with LVEF. Twenty-three cases of MACE's were recorded during follow up, who showed higher EAT. Diagnostic ability of EAT to discriminate MACE's was comparable to LVEF (AUROC > 0.5); but higher than Syntax score. Quartile comparison of EAT revealed that measurement of the complete bulk of EAT provided a better discrimination range for MACE's, and higher, more significant adjusted risk (cutoff 4.6 mm, RR = 3.91; 95% CI 1.01–15.08; p = 0.04) than the other risk factors. We concluded that echocardiographic measurement of EAT showed higher predicting ability for MACE’s than the other markers tested, in patients with CAD. Whether location for echocardiographic measurement of EAT impacts the diagnostic performance of this method deserves further study.

11 January 2025 in Nutrients
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JSJuan Antonio Suárez-Cuenca
Juan Antonio Suárez-Cuenca
DDDiana Elisa Díaz-Jiménez
Diana Elisa Díaz-Jiménez
JPJuan Antonio Pineda-Juárez
Juan Antonio Pineda-Juárez
AMAlondra Gissel Mendoza-Mota
Alondra Gissel Mendoza-Mota
OVOfelia Dinora Valencia-Aldana
Ofelia Dinora Valencia-Aldana
PMPaul Mondragon-Teran
Paul Mondragon-Teran
Background: Metabolic syndrome (MS) is a combination of comorbidities that increase pro-inflammatory cytokines (PIC) production, with subsequent body composition (BC) abnormalities and high cardiovascular risk. Treatment with diet and exercise has been suggested as possible non-pharmacological adjuvant treatment. Objective: To determine changes in BC and PIC in patients with MS after a Mediterranean-type diet (MedDiet) and/or isokinetic exercise (IE). Methods: A controlled randomized clinical trial was conducted at a third-level hospital in Mexico City. Intervention groups: G1: MedDiet + IE; G2: IE; G3: MedDiet; G4: control. Anthropometry, BC, and PIC were collected from the baseline and at 12 weeks post-intervention. MedDiet was estimated from a 24-h recall record. IE consisted of a standard high-intensity anaerobic exercise program. Results: Forty-two patients with MS aged 18–65 years old were included. The most frequent comorbidities were obesity, insulin resistance, and dyslipidemia. After 6 months of intervention, a significant reduction of resistin was observed within the IE group and MedDiet + IE, whereas the former group also showed an increase in adiponectin. Interventions of MedDiet and MedDiet + IE showed a decrease in IL-10. Regarding BC, all groups increased the resistance values in relation to the baseline but were lower than the control group. Conclusions: The results suggest that MedDiet and IE have a selective impact on pro-inflammatory mediators, while the combination of MedDiet and IE may induce only minor changes in BC.

7 August 2016 in Journal of International Medical Research
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Journal Article
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JPJuan A Peraza-Zaldívar
Juan A Peraza-Zaldívar
JSJuan Antonio Suárez-Cuenca
Juan Antonio Suárez-Cuenca
RARocío Aceves-Millán
Rocío Aceves-Millán
CICarlos Ixcamparij-Rosales
Carlos Ixcamparij-Rosales
LALilia Amezcua
Lilia Amezcua
SASofía L Alcaráz-Estrada
Sofía L Alcaráz-Estrada
Objective To evaluate the relationship between pro-atherogenic biomarkers and epicardial adipose tissue (EAT) thickness in patients with cardiovascular risk factors. Methods Plasma nitric oxide (NO), soluble intercellular adhesion molecule-1 and malondialdehyde (MDA) levels, EAT thickness, flow-mediated dilation (FMD) and carotid intima media thickness (CIMT) were determined in patients aged >18 years who were referred for echocardiography for heart ischemia or non-ischemic diseases. Cardiovascular risk factors (Framingham score [FS] ≥ 20) were weighted. Results Hypertension, dyslipidaemia and type 2 diabetes mellitus were prevalent (≥55% of 40 patients). Patients with FS ≥ 20 (n = 21) showed significantly higher EAT and CIMT values. Globally, MDA, CIMT, age, waist circumference, high-density lipoprotein cholesterol (HDL-C) and FS were associated with EAT thickness. EAT was significantly associated with NO in patients with FS ≥ 20. Significant differences in EAT thickness were found between patients stratified by NO value, FMD, age, smoking status, dyslipidaemia, type 2 diabetes mellitus and FS. An EAT-associated atherogenic risk (CIMT ≥ 1 mm) model was statistically significant when MDA and type 2 diabetes mellitus were included. Conclusion EAT thickness was associated with MDA, CIMT, age, waist circumference, HDL-C and FS globally, but with NO only in patients with FS≥20. EAT may be used to identify vascular damage stage, possibly influenced by MDA and type 2 diabetes mellitus.

1 January 2015 in Medical Science Monitor
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NJNayeli Gabriela Jiménez-Saab
Nayeli Gabriela Jiménez-Saab
ERElizabeth Rodríguez-Romero
Elizabeth Rodríguez-Romero
JSJuan Antonio Suárez-Cuenca
Juan Antonio Suárez-Cuenca
CECésar Iván Elizalde-Barrera
César Iván Elizalde-Barrera
PMPaul Mondragón-Terán
Paul Mondragón-Terán
AMAlberto Melchor-López
Alberto Melchor-López
BACKGROUND:Alpha1 anti-trypsin (α1-AT), a serine protease inhibitor synthesized in the liver, is a major circulating antiprotease that provides defense against proteolytic damage in several tissues. Its deficiency is associated with airflow obstruct...

JSJuan Antonio Suárez-Cuenca
Juan Antonio Suárez-Cuenca
CLChristian Gabriel Toledo Lozano
Christian Gabriel Toledo Lozano
MEMaryjose Daniela Espinosa-Arroyo
Maryjose Daniela Espinosa-Arroyo
NVNallely Alejandra Vázquez-Aguirre
Nallely Alejandra Vázquez-Aguirre
GFGandhy Thomas Fonseca-González
Gandhy Thomas Fonseca-González
SGSilvia García
Silvia García
Alcohol withdrawal syndrome (AWS) represents an adverse consequence of chronic alcohol use that may lead to serious complications. Therefore, AWS requires timely attention based on its early recognition, where easy-to-apply diagnostic tools are desirable. Our aim was to characterize the performance of a short-scale AST (Anxiety, Sweats, Tremors) in patients from public general hospitals. We conducted a cross-sectional study of patients attended at the Emergency Department diagnosed with AWS. Three scales were applied: CIWA-Ar (Clinical Institute Retirement Assessment Scale-Revised), GMAWS (Glasgow Modified Alcohol Withdrawal Syndrome) and AST. Cronbach’s alpha and Cohen’s kappa tests were used for reliability and concordance. Factorial analysis and diagnostic performance including ROC curve were carried out. Sixty-eight males with a mean age of 41.2 years old, with high school education and robust alcohol consumption, were included. Mean scores for CIWA-Ar, GMWAS and AST were 17.4 ± 11.2, 3.9 ± 2.3 and 3.8 ± 2.6, respectively, without significant differences. The AST scale showed an acceptable reliability and concordance (0.852 and 0.439; p < 0.0001) compared with CIWA-Ar and GMAWS. AST component analysis evidenced tremor (77.5% variance), sweat (12.1% variance) and anxiety (10.4% variance). Diagnostic performance of the AST scale was similar to the GMAWS scale, evidencing a sensitivity of 84%, specificity of 83.3% and Area Under the Curve (AUC) of 0.837 to discriminate severe AWS, according to CIWA-Ar. The performance of the AST scale to evaluate AWS is comparable with the commonly used CIWA-Ar and GMAWS scales. AST further represents an easy-to-apply instrument.