761 results match your criteria: "National Institute of Medical Sciences and Nutrition "Salvador Zubiran"[Affiliation]"

Childhood obesity increases the risk of developing metabolic diseases in adulthood, since environmental stimuli during critical windows of development can impact on adult metabolic health. Studies demonstrating the effect of prepubertal diet on adult metabolic disease risk are still limited. We hypothesized that a prepubertal control diet (CD) protects the adult metabolic phenotype from diet-induced obesity (DIO), while a high-fat diet (HFD) would predispose to adult metabolic alterations.

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It was a general belief that drug resistance in Mycobacterium tuberculosis (Mtb) was associated with lesser virulence, particularly rifampicin resistance, which is usually produced by mutations in the RNA polymerase Beta subunit (RpoB). Interestingly, this kind of bacterial mutations affect gene transcription with significant effects on bacterial physiology and metabolism, affecting also the bacterial antigenic constitution that in consequence can produce diverse immune responses and disease outcome. In the present study, we show the results of the Mtb clinical isolate A96, which is resistant to rifampicin and when used to infect BALB/c mice showed hypervirulence, apparently by rapidly polarization of the Th2 immune response through early and high production of IL-4.

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Historically, it takes an average of 17 years to move new treatments from clinical evidence to daily practice. Given the highly effective treatments now available to prevent or delay kidney disease onset and progression, this is far too long. The time is now to narrow the gap between what we know and what we do.

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Protective role of ABCC drug subfamily resistance transporters (ABCC1-7) in intestinal inflammation.

Immunol Res

January 2025

Inflammatory Bowel Disease Clinic, Department of Gastroenterology, National Institute of Medical Sciences and Nutrition Salvador Zubirán, Vasco de Quiroga #15, Col. Belisario Domínguez Sección XVI, 14080, Mexico City, CPCDMX, Mexico.

The ABCC subfamily contains thirteen members. Nine of these transporters are called multidrug resistance proteins (MRPs). The MRPs have been associated with developing ulcerative colitis (UC).

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Overweight, obesity, and cardiovascular disease in heterozygous familial hypercholesterolaemia: the EAS FH Studies Collaboration registry.

Eur Heart J

January 2025

Department of Primary Care and Public Health, Imperial Centre for Cardiovascular Disease Prevention, School of Public Health, Imperial College London, White City Campus, 90 Wood Lane, London W12 0BZ, UK.

Background And Aims: Overweight and obesity are modifiable risk factors for atherosclerotic cardiovascular disease (ASCVD) in the general population, but their prevalence in individuals with heterozygous familial hypercholesterolaemia (HeFH) and whether they confer additional risk of ASCVD independent of LDL cholesterol (LDL-C) remains unclear.

Methods: Cross-sectional analysis was conducted in 35 540 patients with HeFH across 50 countries, in the EAS FH Studies Collaboration registry. Prevalence of World Health Organization-defined body mass index categories was investigated in adults (n = 29 265) and children/adolescents (n = 6275); and their association with prevalent ASCVD.

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Historically, it takes an average of 17 years to move new treatments from clinical evidence to daily practice. Given the highly effective treatments now available to prevent or delay kidney disease onset and progression, this is far too long. The time is now to narrow the gap between what we know and what we do.

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Myelomeningocele (MMC) is the most severe and disabling form of spina bifida with chronic health multisystem complications and social and economic family and health systems burden. In the present study, we aimed to investigate the genetic risk estimate for MMC in a cohort of 203 Mexican nuclear families with discordant siblings for the defect. Utilizing a custom Illumina array, we analyzed 656 single nucleotide polymorphisms (SNPs) of 395 candidate genes to identify a polygenic risk profile for MMC.

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Challenges and Opportunities for Adult Vaccine Coverage: Insights for Healthcare Professionals Focusing on Herpes Zoster in Mexico.

Vaccines (Basel)

December 2024

GSK México, Torre Mitikah Piso 19 y 20, Circuito Interior Avenida Río Churubusco 601, Col. Xoco. Alc. Benito Juárez, Mexico City 03330, Mexico.

Herpes zoster (HZ) is a common disease in older adults and immunocompromised patients, and is frequently associated with long-term complications that impact quality of life. Fortunately, more than one vaccine against HZ is now available in Mexico. Two expert consensus groups discussed adult vaccination strategies in Mexico, focusing on HZ in older adults and immunocompromised individuals; their insights are reported here.

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The COVID-19 pandemic provided an ideal scenario for studying the care of the elderly population, we implemented a tool named the Geriatric Measure (GM) tool to determine the severity and need for hospitalization. The objective of the study is to evaluate if the results of a brief Geriatric Measure tool are associated with mortality and other outcomes among older adults with COVID-19 treated in the emergency department. Retrospective observational cohort study.

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This work presents strong evidence supporting the use of decellularized human iliac arteries combined with adipose tissue-derived stem cells (hASCs) as a promising alternative for vascular tissue engineering, opening the path to future treatments for peripheral artery disease (PAD). PAD is a progressive condition with high rates of amputation and mortality due to ischemic damage and limited graft options. Traditional synthetic grafts often fail due to poor integration, while autologous grafts may be unsuitable for patients with compromised vascular health.

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Design and evaluation of a multi-epitope HIV-1 vaccine based on human parvovirus virus-like particles.

Vaccine

January 2025

Mucosal Immunoogy Laboratory, Biomedicine Research Unit, Faculty of Higher Studies Iztacala, National Autonomous University of Mexico. Avenida de los Barrios 1, Los Reyes Iztacala, Tlalnepantla, Estado de México 54090, Mexico. Electronic address:

The development of a protective HIV vaccine remains a challenge given the high antigenic diversity and mutational rate of the virus, which leads to viral escape and establishment of reservoirs in the host. Modern antigen design can guide immune responses towards conserved sites, consensus sequences or normally subdominant epitopes, thus enabling the development of broadly neutralizing antibodies and polyfunctional lymphocyte responses. Conventional epitope vaccines can often be impaired by low immunogenicity, a limitation that may be overcome by using a carrier system.

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Discontinuation of antiseizure medications (ASMs), primarily prompted by adverse effects, presents a formidable challenge in the management of epilepsy, and impacting up to 25% of patients. This article thoroughly explores the clinical spectrum of cutaneous adverse drug reactions (cADRs) associated with commonly prescribed ASMs. Ranging from mild maculopapular rashes to life-threatening conditions such as Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN), the diverse manifestations are meticulously detailed.

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Autosomal recessive deficiency of the IFNAR1 or IFNAR2 chain of the human type I IFN receptor abolishes cellular responses to IFN-α, -β, and -ω, underlies severe viral diseases, and is globally very rare, except for IFNAR1 and IFNAR2 deficiency in Western Polynesia and the Arctic, respectively. We report 11 human IFNAR1 alleles, the products of which impair but do not abolish responses to IFN-α and -ω without affecting responses to IFN-β. Ten of these alleles are rare in all populations studied, but the remaining allele (P335del) is common in Southern China (minor allele frequency ≈2%).

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Two-flap earlobe rotation for extensive mid-helix defect: a case report of a new modification to an existing technique.

J Surg Case Rep

December 2024

Dermatology, Faculty of Medicine, National Autonomous University of Mexico, Escolar 411A, Copilco Universidad, Coyoacan, 04360, Mexico City, Mexico.

Reconstructing ear defects in very elderly patients is challenging, but one-step procedures are beneficial due to reduced morbidity and fewer hospital visits while maintaining ear size, shape, and symmetry. In 2018, Jaber . introduced a 90° earlobe rotation technique to repair full-thickness auricular defects while preserving the earlobe.

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Background: Induced pluripotent stem cells (iPSCs) offer the potential to generate autologous iPSC-derived islets (iPSC islets), however, remain limited by scalability and product safety.

Methods: Herein, we report stagewise characterization of cells generated following a bioreactor-based differentiation protocol. Cell characteristics were assessed using flow cytometry, quantitative reverse transcription polymerase chain reaction, patch clamping, functional assessment, and in vivo functional and immunohistochemistry evaluation.

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Background: Irritable bowel syndrome symptoms are associated with diverse pathophysiological mechanisms including small intestinal bacterial overgrowth and food intolerance. Small intestinal bacterial overgrowth leads to the decreased activity of several digestive enzymes, including lactase.

Aims: To assess the efficacy of rifaximin-alpha on the symptoms and lactase activity of patients with irritable bowel syndrome without constipation.

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Article Synopsis
  • This study assesses the outcomes of adrenalectomy for pheochromocytoma in obese versus nonobese patients, using data from 46 centers from 2012 to 2022.
  • It finds that while obesity does not significantly increase the rate of complications or comprehensive complication index (CCI), it does lead to a longer hospital stay for patients.
  • Furthermore, minimally invasive surgical techniques, like laparoscopic and robotic surgeries, are associated with less morbidity in obese patients, and a retroperitoneal approach may provide additional benefits.
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Brain reserve in hepatic encephalopathy: Pathways of damage and preventive strategies through lifestyle and therapeutic interventions.

Ann Hepatol

November 2024

Metabolic Unit. National Institute of Medical Sciences and Nutrition Salvador Zubiran, 14080 Mexico City, Mexico; Guest Researcher Hepatology, General Hospital of Mexico, Mexico City, Mexico; Gastroenterology Department, ABC Hospital, Mexico City, Mexico. Electronic address:

Brain reserve is an important concept to understand the variability of damage associated with brain-related diseases and includes the adaptation of cognitive processes to preserve brain function. A good cognitive reserve might delay the onset of clinical manifestations of neurodegenerative diseases as well as hepatic encephalopathy, improving the quality of life in patients with chronic liver diseases. By stimulating activities and maintaining overall health, individuals may be able to enhance their brain's resilience to age-related changes and pathology.

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Exercise training in long COVID: the EXER-COVID trial.

Eur Heart J

November 2024

Navarrabiomed, Hospital Universitario de Navarra (HUN), Universidad Pública de Navarra (UPNA), Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31001 Pamplona, Spain.

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Article Synopsis
  • Acquired hypophosphatemic osteomalacia (AHO) is a rare bone disorder often caused by phosphaturic tumors that lead to low phosphate levels and poor bone mineralization, with tumor-induced osteomalacia (TIO) being the most common culprit.
  • A study reviewed seven cases of AHO in Peruvian patients between 1999 and 2023, revealing significant diagnostic challenges and varying outcomes; some patients improved after tumor removal, while others did not and even faced fatalities.
  • The findings highlight the necessity for careful diagnosis and treatment planning, as the elusive nature of tumors makes it particularly difficult to manage AHO in regions like Peru with limited medical resources.
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Historically, it takes an average of 17 years to move new treatments from clinical evidence to daily practice. Given the highly effective treatments now available to prevent or delay kidney disease onset and progression, this is far too long. The time is now to narrow the gap between what we know and what we do.

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Baseline, Early Changes, and Residual Albuminuria: Post Hoc Analysis of a Randomized Clinical Trial of Dapagliflozin in Chronic Kidney Disease.

Clin J Am Soc Nephrol

December 2024

Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.

Article Synopsis
  • Albuminuria is a significant marker for kidney and cardiovascular problems in chronic kidney disease (CKD), and this study analyzed its impact on health outcomes in CKD patients receiving dapagliflozin or placebo.
  • A post-hoc analysis of the DAPA-CKD trial involved 4,304 patients and found that dapagliflozin significantly decreased urinary albumin-to-creatinine ratio (UACR) after four months, with a 36% reduction in those with diabetes and 21% in those without.
  • The study concluded that greater reductions in albuminuria were linked to lower risks of serious kidney and cardiovascular events, providing evidence for the benefits of dapagliflozin in managing CKD.
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Article Synopsis
  • Chronic kidney disease increases the risk of atherosclerotic cardiovascular disease (ASCVD), partly due to high levels of remnant cholesterol, even in patients treated with statins.
  • A study of over 107,000 individuals indicated that higher remnant cholesterol is linked to increased risks of myocardial infarction and ischemic stroke, especially in those with impaired renal function.
  • The findings highlight that elevated remnant cholesterol contributes significantly to ASCVD risk in both statin users and non-users, meaning that additional strategies may be needed to lower this risk in kidney disease patients.
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