Mariano Zacarías-Flores

Dr. Mariano Zacarías-Flores

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Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

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

Representative Publications

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3 January 2017 in BMC Women's Health
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Journal Article
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MSMartha A. Sanchez-Rodriguez
Martha A. Sanchez-Rodriguez
LCLizett Castrejón-Delgado
Lizett Castrejón-Delgado
MZMariano Zacarías-Flores
Mariano Zacarías-Flores
AAAlicia Arronte-Rosales
Alicia Arronte-Rosales
VMVíctor Manuel Mendoza-Núñez
Víctor Manuel Mendoza-Núñez
Menopause is the onset of aging in women. During this process, some women experience physical changes that may impact upon their psychological and social status, also affecting their quality of life. Furthermore, several psychological changes following menopause have been shown to act as pro-oxidant, but the association between the psychological status that modify the quality of life and oxidative stress in postmenopausal women is still unclear. The aim of this study was to determinate the relationship between oxidative stress with psychological disturbances, low self-esteem, depressive mood and anxiety, and quality of life in the postmenopausal women. We carried out a cross-sectional study with101 premenopausal and 101 postmenopausal women from Mexico City. As markers of oxidative stress we measured plasma lipoperoxide levels, erythrocyte superoxide dismutase and glutathione peroxidase activities, and total antioxidant status. We calculate a stress score as global oxidative stress status, with cut-off values for each parameter; this score range from 0 to 6, representing the severity of markers modifications. All the women were rated using the Coopersmith Self-Esteem Inventory, the Zung Self-Rating Anxiety and the Zung Self-Rating Depression Scales, and the WHO Quality of Life-brief. The postmenopausal women with low quality of life in the WHO Quality of Life-brief and their subscales had higher stress score compared with premenopausal women with high quality of life (p < 0.05). We found a positive correlation among lipoperoxide levels and Zung Self-Rating Anxiety and Zung Self-Rating Depression score (r = 0.226 and r = 0.173, respectively, p < 0.05), and a negative correlation with WHO Quality of Life-brief scores (r = −0.266, p < 0.01) in postmenopausal women. Multiple linear regression analysis revealed that average lipoperoxide levels increase by 0.0007 μmol/L for every 1-point increase in the Coopersmith Self-Esteem Inventory and by 0.001 μmol/L for every 1-point decrease in the WHO Quality of Life-brief, after adjusted for pro-oxidant factors. Zung Self-Rating Anxiety and Zung Self-Rating Depression Scales scores also contribute to increase lipoperoxides levels, but not significant. Our findings suggest that oxidative stress is increased in postmenopausal women with psychological disturbances and low quality of life.

1 January 2021 in Oxidative Medicine and Cellular Longevity
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Journal Article
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MSMartha A. Sanchez-Rodriguez
Martha A. Sanchez-Rodriguez
MZMariano Zacarías-Flores
Mariano Zacarías-Flores
ECElsa Correa-Muñoz
Elsa Correa-Muñoz
AAAlicia Arronte-Rosales
Alicia Arronte-Rosales
VMVíctor Manuel Mendoza-Núñez
Víctor Manuel Mendoza-Núñez
Oxidative stress (OS) increases during the human aging process, and the sedentary lifestyle could be a prooxidant factor. In this study, we determine the effect of sedentary lifestyle on OS during the aging process in Mexican women. A longitudinal study of two‐year follow‐up was carried out with 177 community‐dwelling women (40‐69 y) from Mexico City. We measured as OS markers plasma malondialdehyde, erythrocyte glutathione peroxidase (GPx) and superoxide dismutase (SOD), total plasma antioxidant status, uric acid level, antioxidant gap, and SOD/GPx ratio. To define OS using all the markers, we defined cut‐off values of each parameter based on the 90th percentile of young healthy subjects and, we calculated a stress score (SS) ranging from 0 to 7, which represented the intensity of the marker modifications. All the women answered a structured questionnaire about prooxidant factors, including physical activity specially the type of activity, frequency, and duration, and they answered Spanish versions of self‐assessment tests for establishing dysthymia and insomnia as potential confounders. Principal component and Poisson regression analysis were used as statistical tools, being two‐year OS the primary outcome. The OS was considerate as SS ≥ 4 and sedentary lifestyle as <30 min/day of physical activity, beside several prooxidant factors and age that were covariables. SS is higher in sedentary lifestyle women after the two‐year follow‐up; although, the difference was statistically significant only in older women. Four principal components were associated with the OS, and 7 out of 8 prooxidant factors were important for the analysis, which were included in the Poisson model. The predictive factors for OS were the sedentary lifestyle (adjusted PR = 2.37, CI95%: 1.30–4.30, p < 0.01), and age, in which the risk increases 1.06 (CI95%:1.02–2.11, p < 0.01) by each year of age. Our findings suggest that a sedentary lifestyle increases the OS during the aging in Mexican women.

Verified
Journal Article
Open access
PDF file
MSMartha A. Sanchez-Rodriguez
Martha A. Sanchez-Rodriguez
MZMariano Zacarías-Flores
Mariano Zacarías-Flores
LCLizett Castrejón-Delgado
Lizett Castrejón-Delgado
ARAna Karen Ruiz Rodriguez
Ana Karen Ruiz Rodriguez
VMVíctor Manuel Mendoza-Núñez
Víctor Manuel Mendoza-Núñez
The aim of this study was to determine the effect of oral hormone therapy (HT) on oxidative stress (OS) in postmenopausal women with metabolic syndrome (MetS). A randomized, double blind, placebo-controlled trial was carried out. We formed four groups of 25 women each; healthy (HW) and MetS women (MSW) were assigned to HT (1 mg/day of estradiol valerate plus 5 mg/10 day of medroxiprogesterone) or placebo. We measured plasma lipoperoxides, erythrocyte superoxide dismutase and glutathione peroxidase, total plasma antioxidant status and uric acid, as OS markers. Alternative cut-off values of each parameter were defined and a stress score (SS) ranging from 0 to 7 was used as total OS. MetS was defined according to National Cholesterol Education Program Adult Treatment Panel III (NCEP-ATPIII) criteria. Participants were seen at baseline, 3 and 6 months. After 6 months, MetS decreased in MSW-HT (48%), their triglycerides and high-density lipoprotein cholesterol (HDL-c) improved; in the other groups no difference was found. SS in MSW-HT decreased (3.8 ± 0.3 to 1.7 ± 0.3, p < 0.05) and OS was also reduced (44%), this effect was evident since 3 mo. HW-HT with high OS also decreased (40%). In placebo groups there was no change. Our findings suggest that HT improve lipids and OS associated to MetS in postmenopausal women.

24 July 2023 in Healthcare
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Journal Article
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MSMartha A. Sanchez-Rodriguez
Martha A. Sanchez-Rodriguez
MZMariano Zacarías-Flores
Mariano Zacarías-Flores
ECElsa Correa-Muñoz
Elsa Correa-Muñoz
VMVíctor Manuel Mendoza-Núñez
Víctor Manuel Mendoza-Núñez
Background: The advanced activities of daily living (AADLs) in old age is a key indicator of the mobility domain for the intrinsic capacity of older adults living in the community; for this reason, it is relevant to know the prevalence and risk factors related to performing fewer AADLs in different populations. Aim: To determine the prevalence and factors associated with the ability to perform AADLs in older adults reported in the Mexican Study of Health and Aging (MSHA 2018). Methods: A secondary cross-sectional analysis of the MSHA 2018 data was carried out, including a convenience sample of 6474 subjects ≥ 60 years of age, for both sexes, without cognitive deficits. Nine questions related to AADLs were selected from the database. Multiple logistic regression analysis was performed to determine factors associated with <3 AADLs, including sociodemographic, lifestyle, and health status factors. Results: The prevalence of the ability to perform <3 AADLs was 63%. Age is the most important risk factor for <3 AADLs, which increases by the decade, followed by sedentary lifestyle (OR = 2.15, 95% CI: 1.91–2.42, p < 0.0001). Conclusions. Our findings suggest that age, schooling, urban residence, sedentary lifestyle, and comorbidity are the main risk factors for <3 AADLs in older Mexican adults.

FRFrida Sara Rivera-Ochoa
Frida Sara Rivera-Ochoa
IGIxel Venecia González-Herrera
Ixel Venecia González-Herrera
MZMariano Zacarías-Flores
Mariano Zacarías-Flores
ECElsa Correa-Muñoz
Elsa Correa-Muñoz
VMVíctor Manuel Mendoza-Núñez
Víctor Manuel Mendoza-Núñez
MSMartha A. Sanchez-Rodriguez
Martha A. Sanchez-Rodriguez
Biological aging has an abrupt beginning in women, changing their body and perceptions, which are not accepted easily because the actual stereotypes are focused on youth and anti-aging. Our interest was to explore what the self-perception of aging (SPA) is in middle-aged women throughout the reproductive aging stages and their association with the quality of life. A cross-sectional study was conducted with 240 women (40–69 years) living in Mexico City, who were separated according to their reproductive aging stage. An electronic version of the Spanish version of the Self-rated Attitudes Towards Old Age (SATO) and the WHO Quality of Life-Bref (WHOQoL) was applied to these women and was sent by WhatsApp or email. Seventeen women of the total sample (7%) had a negative self-perception of aging. There is an association between SATO and WHOQoL (r = –0.273, p < 0.0001), but in the menopausal transition stage, the association is strong in the psychological subscale, and after menopause, early and late postmenopausal women show a better association in the social subscale. Negative SPA impacts the WHOQoL psychological dimension and not the total WHOQoL score. Our findings suggest an association between SPA and quality of life in different reproductive aging stages.

12 March 2019 in bioRxiv
Verified
Preprint
Open access
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MSMartha A. Sanchez-Rodriguez
Martha A. Sanchez-Rodriguez
MZMariano Zacarías-Flores
Mariano Zacarías-Flores
AAAlicia Arronte-Rosales
Alicia Arronte-Rosales
VMVíctor Manuel Mendoza-Núñez
Víctor Manuel Mendoza-Núñez
Objective: To assess the association between hot flashes (HFs) severity and oxidative stress (OS) in Mexican postmenopausal women. Methods: A cross-sectional study was carried out with perimenopausal women aged 40-59 years community-dwelling from Mexico City, Mexico. They participated in Menopause and Oxidative Stress Project. The baseline sample consisted of 476 women recruited to participate; 161 women were excluded due to different reasons. Hence, 315 women were selected to establish two groups, a) 145 premenopausal women (yet with menstrual bleeding), and b) 170 postmenopausal women (without menses). All women were free of cardiovascular, kidney, hepatic or cancer disease, and without antioxidant supplement intake for at least six months prior to the beginning of the study; none had previously received hormone therapy. As OS markers, we measured plasma malondialdehyde using the TBARS assay, erythrocyte superoxide dismutase (SOD) and glutathione peroxidase (GPx), uric acid, and total antioxidant status; also, we calculated SOD/GPx ratio, antioxidant gap and an oxidative stress score ranging from 0 to 7. The HFs were evaluated using the Menopause Rating Scale. The women completed Spanish version of the Athens Insomnia Scale, Zung Self-Rating Anxiety Scale and Zung Self-Rating Depression Scale and a questionnaire of pro-oxidant factors. Results: Stress score increased with HFs severity (mild 2.9±0.23, moderate 3.1±0.21 and severe 3.8±0.18, p<0.01) in postmenopausal women. We observed a positive correlation between HFs severity and stress score, r=0.247 (p=0.001) in postmenopausal women; other test scores were not correlated. Severe HFs were a risk factor for OS (OR=3.37, 95%CI: 1.20-9.51, p<0.05) in an adjusted multivariate analysis by different postmenopausal symptoms and pro-oxidant factors; we did not see any association in premenopausal women. Conclusion: Our findings suggest an association between HFs severity and OS in Mexican postmenopausal women.