Substance Use and Mental Health in Emerging Adult University Students Before, During, and After the COVID-19 Pandemic in Mexico: A Comparative Study.

Background: The COVID-19 pandemic significantly impacted mental health and substance use patterns, particularly among young adults.

Objective: This study aimed to assess changes in anxiety, depression, self-esteem, and substance use among university students in Mexico before, during, and after the pandemic.

Methods: Using a repeated cross-sectional design, this study was conducted with university students in Mexico across three periods: pre-pandemic (2017 and 2019); during the pandemic (2021); and post-pandemic (2023).

Cinnamon () Aqueous Extract Regulates the Parameters of Metabolic Syndrome in a Model of Wistar Rats with a Diet High in Fat and Fructose.

To identify the effect of (CZ) aqueous extract on glucose, triglycerides, high-density lipoprotein (HDL) cholesterol, and blood pressure in male Wistar rats, fed with a high-fat and high-fructose diet (HFFD). Twenty-four male Wistar rats were randomized into four groups: Healthy (fed with standard diet), Healthy + CZ (fed with standard diet + CZ extract), HFFD (fed with HFFD), HFFD+CZ, (fed with HFFD + CZ extract). The CZ aqueous extract was administered 100 mg/kg/day by oral gavage to each rat for 8 weeks.

Components of frailty, sarcopenia and their association with vitamin D deficiency. Cross-sectional, analytical study.

Introduction: In older adults, the association of frailty and sarcopenia with vitamin D deficiency is well known, but the association of the components of frailty syndrome has been poorly studied.

Objective: To determine the association of the components of frailty and sarcopenia with vitamin D insufficiency in older adults.

Methods: Adults were studied, in whom age, education, marital status, history of fractures, hospitalizations, anthropometric indicators, sarcopenia, Charlson index, polypharmacy, Fried's frailty phenotype, and plasma vitamin D were recorded; figures < 30 ng/mL were considered indicative of vitamin D insufficiency.

Impact on the Nutritional and Functional Status of Older Mexican Adults in the Absence of Recreational Activities due to COVID-19: A Longitudinal Study From 2018 to 2021.

A longitudinal study, from 2018 to 2021, identified impacts on the nutritional and functional status of older adults when face-to-face activities at a social assistance center in Mexico were suspended due to the COVID-19 pandemic. A total of 71 older adults were evaluated at three different periods: 18 months prior, three months before the pandemic, and 12 months after the onset of the pandemic. Seventy-one older adults completed follow up.

Serum 25-Hydroxyvitamin D correlates with systolic blood pressure in obese male schoolchildren.

Introduction: childhood obesity is associated with an increased risk of chronic diseases. We aimed to examine the relation between serum levels of 25-hydroxyvitamin D (25[OH]D) and blood pressure in obese schoolchildren. Material and methods: a cross-sectional study in school-age children with obesity.

Vitamin D and its correlation with blood lipids and intima-media thickness in term infants.

Background: an association between low 25(OH)D levels and blood lipids has been identified in children, adolescents, and adults but not in the early stages of life, and a relation to carotid and aortic intima-media thickness has not been well studied and is controversial. Objective: to identify whether 25(OH)D levels are correlated with blood lipids and aortic and carotid intima-media thickness in infants aged 3 to 9 months. Methods: a cross-sectional study was conducted in 109 healthy term infants between the ages of 3 and 9 months.

Comparison of leptin levels in neonates born to mothers with high or low gestational weight gain.

Background Gestational weight gain (GWG) influences both fetal and maternal health. Leptin is a biomarker that may predict the early development of obesity and greater weight gain in childhood. Newborns with higher neonatal weight have been found to have higher leptin levels in umbilical cord blood (UCB).

Vitamin D status and its relation to insulin resistance in a Mexican pediatric population.

Background Obesity in children and adolescents has increased alarmingly, placing them at a higher risk for impaired glucose tolerance and type 2 diabetes. The prevalence of vitamin D deficiency has increased as well. Vitamin D is critical for glucose homeostasis and insulin secretion.

Oral fatty acid taste sensitivity in healthy young individuals of both sexes is related to body mass index and soluble CD36 serum levels.

Introduction: CD36 is a membrane protein that functions as a lingual receptor for lipids. The soluble CD36 fraction (sCD36) may correlate oral fatty acid fat taste sensitivity to body mass index (BMI) and adiposity. Objectives: to determine if the oral fatty acid taste sensitivity in healthy young individuals of both sexes is related to serum sCD36 levels, adiposity and BMI.

Effect of Calcitriol Supplementation on Blood Pressure in Older Adults.

Recent studies suggest that vitamin D plays an important role in the control of blood pressure. Unfortunately, because older adults are more likely to have low 25-hydroxyvitamin-D [25(OH)D] levels, this study investigated whether calcitriol supplementation reduces blood pressure in older adults with hypertension. The design was a double-blind placebo-controlled randomized clinical trial with 36 randomly assigned subjects (71.

Effect of an avocado oil-enhanced diet (Persea americana) on sucrose-induced insulin resistance in Wistar rats.

A number of studies have been conducted to evaluate the effects of vegetable oils with varying percentages of monounsaturated and polyunsaturated fatty acids on insulin resistance. However, there is no report on the effect of avocado oil on this pathologic condition. The aim of this work was to evaluate the effect of avocado oil on sucrose-induced insulin resistance in Wistar rats.

Carnitine palmitoyltransferase 1B 531K allele carriers sustain a higher respiratory quotient after aerobic exercise, but β3-adrenoceptor 64R allele does not affect lipolysis: a human model.

Carnitine palmitoyltransferase IB (CPT1B) and adrenoceptor beta-3 (ADRB3) are critical regulators of fat metabolism. CPT1B transports free acyl groups into mitochondria for oxidation, and ADRB3 triggers lipolysis in adipocytes, and their respective polymorphisms E531K and W64R have been identified as indicators of obesity in population studies. It is therefore important to understand the effects of these mutations on ADRB3 and CPT1B function in adipose and skeletal muscle tissue, respectively.

Higher levels of C-reactive protein associated with higher adiposity in mexican schoolchildren.

Introduction: The development of chronic-degenerative diseases secondary to obesity in early infancy has alerted health providers to the importance of identifying the risk factors for obesity and assessing preventive treatment to reduce risks. Studies performed on a pediatric population have examined the role of inflammatory biomarkers (specifically CRP and TNF-α) and adiposity with inconsistent results.

Objective: To assess the relationship between the serum levels of C-reactive protein and tumor necrosis factor-alfa with adiposity measured by bioimpedance analysis in schoolchildren.

Correlation between percentage of body fat measured by the Slaughter equation and bio impedance analysis technique in Mexican schoolchildren.

Introduction: Obesity is considered one of the most serious public health problems of the 21st century in children and adolescents. The percentile or Z-score of the body mass index is widely used in children and adolescents to define and assess overweight and obesity, but it does not determine the percentage of total body fat. Other anthropometric measurements that determine total body fat are skinfold thickness and methods of body composition assessment such as bio impedance analysis, both of which are rapid and inexpensive.

Levels of eicosapentaenoic acid in obese schoolchildren with and without insulin resistance.

Background: Obesity in children is now an increasing health risk worldwide in which the insulin-resistance can be present. Studies have linked a diet rich in n-3 fatty acids with a lower prevalence of insulin-resistance.

Objective: To compare the levels of eicosapentaenoic acid among obese children with and without insulin-resistance.