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Álvarez‐Villalobos, Neri Alejandro

https://orcid.org/0000-0001-5208-1429

Mayo Clinic

Mayo Clinic

Citations 28

Normal Weight Obesity and Grip Strength: A Cross-Sectional Study
Alvarez-Villalobos, Neri, Porras-Barrientos, Carlos, Elizondo-Omaña, Gabriela G. , Burciaga-Muñoz, Alejandro , Álvarez‐Villalobos, Neri Alejandro , Álvarez-Villalobos, Neri A

Obesities | February 23, 2026 | Volume: 6 | Issue: 1 | Pages: 14

10.3390/obesities6010014 Get It

Obesity is a global health concern affecting all income levels, with body mass index (BMI) traditionally used for diagnosis. However, BMI does not accurately reflect body composition. Normal weight obesity (NWO) describes individuals with a normal BMI but elevated body fat percentage and has been associated with metabolic abnormalities and reduced physical fitness. This cross-sectional study included 384 adults aged 18–40 years with a BMI between 18.5 and 24.9 kg/m2. Anthropometric measurements and body composition were assessed using an InBody H20 bioelectrical impedance device, and handgrip strength was measured with a Camry electronic dynamometer. NWO was defined as body fat percentage ≥20% in men and ≥30% in women. The overall prevalence of NWO was 77.3%. Although prevalence appeared higher in men than in women, this difference was not statistically significant after adjustment for multiple comparisons. Participants with NWO showed significantly higher body fat percentage, visceral fat index, hip circumference, and blood pressure compared with normal weight non-obese individuals after Holm–Bonferroni correction. Skeletal muscle mass was lower in the NWO group, although this difference did not remain statistically significant after adjustment. Multivariate logistic regression identified right-hand grip strength as an independent protective factor against NWO.
Epidemiologic profile of community-acquired Clostridioides difficile infections: a systematic review and meta-analysis
Ruiz-Hernández, Fernando G. , Méndez-Arellano, Ana Camila, Azamar-Márquez, Jhoan Manuel , Camacho-Ortíz, Adrián , Alvarez-Villalobos, Neri Alejandro, Ruiz Hernandez, Fernando Gerardo , Camacho-Ortiz, Adrián , Álvarez‐Villalobos, Neri Alejandro

Epidemiology and Infection | March 4, 2025 | Volume: 153 | Issue: No issue available | Pages: No page available

10.1017/s0950268825000202 Get It

Abstract Clostridiodes difficile’s epidemiology has evolved over the past decades, being recognized as an important cause of disease in the community setting. Even so, there has been heterogeneity in the reports of CA-CDI. Therefore, the aim of this study was to assess the epidemiologic profile of CA-CDI. This systematic review and meta-analysis were conducted according to PRISMA checklist and Cochrane guidelines (CRD42023451134). Literature search was performed by an experienced librarian from inception to April 2023, searching in databases like MEDLINE, Scopus, Web of Science, EMBASE, CCRCC, CDSR, and ClinicalTrials. Observational studies that reported prevalence, incidence of CA-CDI, or indicators to calculate them were included. Pool analysis was performed using a binomial-normal model via the generalized linear mixed model. Subgroup analysis and publication bias were also explored. A total of 49 articles were included, obtaining a prevalence of 5% (95% CI 3–8) and an incidence of 7.53 patients (95% CI 4.45–12.74) per 100,000 person-years. In conclusion, this meta-analysis underscores that among the included studies, the prevalence of CA-CDI stands at 5%, with an incidence rate of 7.3 cases per 100,000 person-years. Noteworthy risk factors identified include prior antibiotic exposure and age.
Methodological limitations in the systematic review of rheumatic adverse events associated with biologic therapy for chronic rhinosinusitis
Moreno‐Peña, Pablo J. , Treviño‐González, José Luis , Alvarez-Villalobos, Neri Alejandro, Álvarez‐Villalobos, Neri Alejandro

International Forum of Allergy & Rhinology | December 3, 2024 | Volume: 15 | Issue: 1 | Pages: 95-96

10.1002/alr.23498 Get It

Evaluating the metformin use on type 2 diabetes prevention in high-risk populations in primary care
Ramírez-Torres, Andony I., Ruiz-Hernández, Fernando G. , Omaña, Gabriela Guadalupe Elizondo, García-Hernández, Rosa María , Peña, P. García de la, Rojo-Garza, Sandra S., Ruiz Hernandez, Fernando Gerardo , Álvarez‐Villalobos, Neri Alejandro , García-Hernández, Rosa M., Peña, Pablo J. Moreno

Journal of Family Medicine and Primary Care | November 16, 2024 | Volume: 13 | Issue: 11 | Pages: 5002-5008

10.4103/jfmpc.jfmpc_552_24 Get It

A BSTRACT Purpose/Background: To identify the proportion of patients with prediabetes who have prescribed metformin and factors related to doing so as a preventive measure for diabetes in primary care at a Family Medicine Unit in northeastern Mexico. Methods: This retrospective observational study included 372 adults who met the criteria for prediabetes diagnosis according to the American Diabetes Association. Data was collected from medical records from January 2020 to December 2021. Possible associations between the variables of interest and the prescription of metformin were tested via hypothesis tests, furthermore, binary logistic regression was performed. Results: Nearly 85% of the patients met at least one criterion for receiving metformin according to ADA recommendations, but only 60% of them were prescribed this medication. Patients with metformin prescriptions differed from those without in aspects such as having a documented diagnosis of prediabetes in their medical records, a higher BMI, and higher glucose levels. Conclusions: Almost one out of two patients with a high risk of type 2 diabetes are not treated with metformin as a preventive measure. Factors associated with metformin prescription included a high BMI, elevated baseline glucose levels, and a prediabetes diagnosis in the medical record. These findings suggest the need for studies to evaluate physicians’ reasons for different treatments and implementation of recommendations for type 2 diabetes prevention in patients with prediabetes in primary health care.
Global Antimicrobial Susceptibility Patterns of Staphylococcus aureus in Atopic Dermatitis
Elizalde-Jiménez, Itzel Guadalupe , Ruiz-Hernández, Fernando G. , Carmona‐Cruz, Silvia Angélica , Pastrana-Arellano, Elena, Romo‐González, Carolina , Garza, Eduardo Arias-de la, Ruiz-Hernández, Fernando Gerardo, Alvarez-Villalobos, Neri Alejandro, Ruiz Hernandez, Fernando Gerardo , Aquino-Andrade, Alejandra , Garza, Eduardo Arias de la , Álvarez‐Villalobos, Neri Alejandro , García‐Romero, María Teresa

JAMA Dermatology | September 25, 2024 | Volume: 160 | Issue: 11 | Pages: 1171

10.1001/jamadermatol.2024.3360 Get It

Importance Individuals with atopic dermatitis are frequently colonized and infected with Staphylococcus aureus . Empirical antibiotic therapy for individuals with atopic dermatitis is common, but data about the antimicrobial susceptibility profiles of S aureus strains isolated from these individuals are scarce for those living in particular geographic areas. Objective To determine the antimicrobial susceptibility of S aureus from individuals with atopic dermatitis and analyze differences according to the income level of the country of origin and the data collection period. Data Sources A meta-analysis of the literature was performed from the inception of the included databases (MEDLINE, Embase, Web of Science, Scopus, and Cochrane) to June 20, 2023, using predetermined Medical Subject Headings. Study Selection Studies were included if they reported antibiotic susceptibility profiles of 1 or more S aureus cutaneous isolates from individuals with atopic dermatitis. Articles written in English, Spanish, French, or German were included. Data Extraction and Synthesis Working in pairs, 6 of the authors conducted the data extraction. The guidelines from the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) were followed. Main Outcomes and Measures The outcome of interest was antimicrobial susceptibility. Results A total of 61 studies reported 4091 S aureus isolates from individuals with atopic dermatitis. For 4 of the 11 commonly used antibiotics (36.4%), antimicrobial susceptibility was 85% or less, including for methicillin (binomial proportion, 0.85 [95% CI, 0.76-0.91]), erythromycin (binomial proportion, 0.73 [95% CI, 0.61-0.83]), fusidic acid (binomial proportion, 0.80 [95% CI, 0.62-0.91]), and clindamycin (binomial proportion, 0.79 [95% CI, 0.65-0.89]). Most studies (46; 75.4%) were conducted in high-income countries. Antimicrobial susceptibility to erythromycin, methicillin, and trimethoprim and sulfamethoxazole was significantly lower in lower middle–income countries and upper middle–income countries. Regarding the temporal trends, 33 studies (54.1%) reported data collected from 1998 to 2010. Antimicrobial susceptibility patterns have not changed over time. Conclusions and Relevance In this systematic review and meta-analysis, antimicrobial susceptibility of S aureus to β-lactams, erythromycin, clindamycin, and fusidic acid may be suboptimal for empirical use in individuals with atopic dermatitis. Significant differences in antimicrobial susceptibility patterns were found in high-income countries and in lower middle–income countries and upper middle–income countries for some antibiotics.
Interventions to improve symptomatology in patients with hypothyroidism and persistent symptoms: A systematic review.
Hidalgo, Jessica, Codova-Madera, Sandra, Wenczenovicz, Camila , Rao, Arbaaz, Ospina, Naykky Singh , Acosta, Gonzalo J. , Brito, Juan P. , Brito, Juan P , Lincango-Naranjo, Eddy , Ruiz-Arellanos, Kim , Ponce, Oscar J. , Álvarez‐Villalobos, Neri Alejandro , Maraka, Spyridoula

No container title available | October 23, 2023 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-3455335/v1 Get It

Abstract Background Levothyroxine (LT4) monotherapy is the standard treatment for hypothyroidism; however, 10–15% of patients have persistent hypothyroid symptoms despite normalizing thyroid hormone levels with LT4. This study aims to summarize the best available evidence on interventions to improve symptomatology in patients with hypothyroidism and persistent symptoms. Methods A systematic search was conducted in March 2022 for randomized controlled trials (RCTs) and observational studies on interventions for adult patients with persistent hypothyroid symptoms despite biochemical euthyroidism on thyroid hormone replacement. Results Of 277 articles, seven fulfilled the inclusion criteria. 455 participants were included. Most intervention participants were female (78.6%) with a mean age of 47.5 years. Five clinical trials evaluating ginger (vs. starch), L-carnitine (vs. placebo), combination LT4 and liothyronine (LT3) (vs. LT4 or placebo), and surgery for patients with serum antithyroid peroxidase (TPO Ab) titers greater than 1000 IU/ml (vs. LT4) found inconsistent improvement in hypothyroidism related symptoms and general health. Of these clinical trials, the use of ginger and surgery showed the largest improvements in fatigue scores. One observational study comparing thyroidectomy vs observation found no impact difference on general health. Lastly, another observational study evaluating combination LT4/LT3 (vs. LT4 monotherapy) found improvement in fatigue and QoL. There were 31 (12%) adverse events in the intervention group and 18 (10.8%) in the comparator group. Conclusions There is no high-quality evidence supporting any intervention for persistent symptoms in hypothyroidism. Available evidence, limited by the risk of bias, inconsistency, and heterogeneity, suggests that some persistent symptoms, particularly fatigue, could improve with ginger and thyroidectomy. Trial registry number:PROSPERO (CRD42022318720)
Prevalence and associated factors of bullying in medical residents: A systematic review and meta-analysis
Álvarez‐Villalobos, Neri Alejandro , Gutierrez, Humberto de León, Ruiz-Hernández, Fernando G. , Omaña, Gabriela Guadalupe Elizondo, Alfaro, Héctor Alejandro Vaquera , Guzmán, Francisco Javier Carranza, De León Gutiérrez, Humberto, Ruiz Hernandez, Fernando Gerardo , Álvarez-Villalobos, Neri A

Journal of Occupational Health | July 14, 2023 | Volume: 65 | Issue: 1 | Pages: No page available

10.1002/1348-9585.12418 Get It

Abstract Objective To assess the prevalence of bullying in medical residents and its associated factors. Methods In this systematic review and meta-analysis, articles from MEDLINE, EMBASE, Scopus, PsycInfo, Cochrane databases, and Web of Science were searched. Published and unpublished cross-sectional studies were included. Cochrane’s Q test and I2 statistics were used to assess the existence of heterogeneity. Subgroup analysis and sensitivity analysis were performed on evidence of heterogeneity. Egger’s test and funnel plots were performed to investigate publication bias. Results A total of 13 cross-sectional studies with a total of 44 566 study participants from different medical residencies were analyzed. The overall prevalence of bullying was 51% (95% CI 36–66). Furthermore, female residents and residents that belong to a minority group had higher odds of experiencing bullying compared to their peers. Conclusion A high prevalence of bullying in medical residents exists around the world. There is a need for education, dissemination, and more effective interventions among the residents and authorities about bullying to build and promote adequate behaviors and diminish bullying prevalence.
Harms of third- and fourth-generation combined oral contraceptives in premenopausal women: A systematic review and meta-analysis
Flores-Rodríguez, Andrea , González-Colmenero, Fernando Díaz , García-Leal, Mariana , Sáenz-Flores, Melissa , Burciaga-Jimenez, Erick, Zuñiga-Hernández, Jorge A , Rodríguez-Guajardo, René, Morales-Martínez, Felipe Arturo , Rodríguez‐Gutiérrez, René , Diaz Gonzalez-Colmenero, Fernando, Zuñiga-Hernandez, Jorge Alberto , Álvarez‐Villalobos, Neri Alejandro , Sordia-Hernández, Luis Humberto

Journal of Investigative Medicine | July 7, 2023 | Volume: 71 | Issue: 8 | Pages: 871-888

10.1177/10815589231184227 Get It

We assessed the available evidence regarding adverse effects on surrogate and patient-important health outcomes of third- and fourth-generation combined oral contraceptives among premenopausal women. We performed a systematic review and meta-analysis including randomized controlled trials and observational studies comparing third- and fourth-generation combined oral contraceptives with other generation contraceptives or placebo. Studies that enrolled women aged 15 to 50 years, with at least three cycles of intervention and 6 months of follow-up were included. A total of 33 studies comprising 629,783 women were included. Low-density lipoprotein cholesterol levels were significantly lower in fourth-generation oral contraceptives (mean differences (MD): −0.24 mmol/L; [95% CI −0.39 to −0.08]), while total cholesterol was significantly increased in levonorgestrel users when compared to third-generation oral contraceptives (MD: 0.27 mmol/L; [95% CI 0.04 to 0.50]). A decreased arterial thrombosis incidence was shown in fourth-generation oral contraceptive users, as compared to levonorgestrel (incidence rate ratio (IRR): 0.41; [95% CI 0.19 to 0.86]). No difference was found in the occurrence of deep venous thrombosis between fourth-generation oral contraceptives and levonorgestrel users (IRR: 0.91; [95% CI 0.66 to 1.27]; p = 0.60; I 2 = 0%). Regarding the remaining outcomes, data were heterogeneous and showed no clear difference. In premenopausal women, the use of third- and fourth-generation oral contraceptives is associated with an improved lipid profile and lower risk of arterial thrombosis. Data were inconclusive regarding the rest of outcomes assessed. This review was registered in PROSPERO with CRD42020211133.
Recent Antifungal Pipeline Developments against Candida auris: A Systematic Review
Treviño‐Rangel, Rogelio de J. , Montoya, Alexandra M. , Rojas, Olga C. , Elizondo-Zertuche, Mariana , Álvarez‐Villalobos, Neri Alejandro , Montoya, Alexandra M , Rojas, Olga C , Álvarez-Villalobos, Neri A , González, Gloria María

Journal of Fungi | October 30, 2022 | Volume: 8 | Issue: 11 | Pages: 1144

10.3390/jof8111144 Get It

The alarming spread and impact of multidrug-resistant Candida auris infections alongside the limited therapeutic options have prompted the development of new antifungals. These promising agents are currently in different stages of development, offering novel dosing regimens and mechanisms of action. A systematic search in MEDLINE, EMBASE, Web of Science, and Scopus up to 27 June 2022 was conducted to find relevant articles reporting data of in vitro activity and in vivo efficacy of investigational antifungals against C. auris. These included new additions to existing antifungal classes (rezafungin and opelconazole), first-in-class drugs such as ibrexafungerp, manogepix/fosmanogepix, olorofim and tetrazoles (quilseconazole, oteseconazole and VT-1598), as well as other innovative agents like ATI-2307, MGCD290 and VL-2397. From 592 articles retrieved in the primary search, 27 met the eligibility criteria. The most studied agent was manogepix/fosmanogepix (overall MIC90: 0.03 mg/L), followed by ibrexafungerp (overall MIC90: 1 mg/L) and rezafungin (overall MIC mode: 0.25 mg/L), while VT-1598 and ATI-2307 were the least explored drugs against C. auris. All these compounds demonstrated significant improvements in survival and reduction in tissue fungal burden on neutropenic animal models of candidemia due to C. auris. Continual efforts towards the discovery of new treatments against this multidrug-resistant fungus are essential.
Letter to the editor: “Oral mini‐pulse therapy in vitiligo: A systematic review”
Chávez‐Álvarez, Sonia , Raygoza‐Cortez, Ana Karina, Suro‐Santos, Yeudiel , Villarreal‐Martínez, Alejandra , Raygoza-Cortez, Karina , Raygoza-Cortez, Ana Karina, Alvarez-Villalobos, Neri Alejandro, Herz‐Ruelas, Maira Elizabeth , Ocampo‐Candiani, Jorge , Álvarez‐Villalobos, Neri Alejandro

International Journal of Dermatology | March 3, 2022 | Volume: 61 | Issue: 7 | Pages: No page available

10.1111/ijd.16135 Get It