Reyna Sámano

Dr. Reyna Sámano

Instituto Nacional de Perinatología Isidro Espinosa de los Reyes
orcid

Research Focus & Metrics

Academic Career Length

16Years (2011-Present)

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

Representative Publications

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GCGabriela Chico-Barba
Gabriela Chico-Barba
KJKarime Jiménez-Limas
Karime Jiménez-Limas
BSBernarda Sánchez-Jiménez
Bernarda Sánchez-Jiménez
RSReyna Sámano
Reyna Sámano
ARAna Rodriguez-Ventura
Ana Rodriguez-Ventura
MTMaricruz Tolentino
Maricruz Tolentino
Nurses are at risk of having burnout due to workload and job stress—studies have reported that chronic stress is associated with metabolic syndrome. This study aimed to assess the association between burnout and metabolic syndrome in a sample of female nurses. Data were collected from a cross-sectional study from 2016 to 2018 in a tertiary hospital in Mexico City. All nurses that work in the hospital were invited to participate. Information pertaining to sociodemographic (age, education level), work (labor seniority, service area, shift work), anthropometric (weight, waist circumference, blood pressure) and biochemical (glucose, serum lipids) variables were collected. Burnout was assessed using the Maslach Burnout Inventory test, and metabolic syndrome was defined according to the International Diabetes Federation criteria. A total of 168 nurses participated with a median age of 44 years. The prevalence of burnout and metabolic syndrome was 19.6% and 38.7%, respectively. There was no association between burnout and metabolic syndrome (p = 0.373). However, associations of emotional exhaustion (aOR: 14.95; 95% CI: 1.5–148.7), personal accomplishment (aOR: 0.13; 95% CI: 0.01–0.99), and night shift (aOR: 12.39; 95% CI: 1.02–150.5) with increased waist circumference were found. Strategies are needed to prevent burnout and metabolic syndrome in nurses, especially in those who work at night shift.

16 November 2017 in BMC Pregnancy and Childbirth
Verified
Journal Article
Open access
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RSReyna Sámano
Reyna Sámano
HMHugo Martinez-Rojano
Hugo Martinez-Rojano
DRDavid Robichaux
David Robichaux
ARAna Rodriguez-Ventura
Ana Rodriguez-Ventura
BSBernarda Sánchez-Jiménez
Bernarda Sánchez-Jiménez
SSSelene Segovia
Selene Segovia
In the last 20 years, adolescent pregnancy has become one of the most critical problems affecting women in Latin America and the Caribbean. This qualitative study was based on in-depth interviews with 29 teen mothers. All of the pregnant teens were from low- to lower-middle-class social strata in the Mexico City metropolitan area. The family (living with the girl) and the individual context of pregnant teens were analysed on the basis of data from at least three interviews: during pregnancy and at approximately 6 and 24 months following delivery. Additionally, six mothers, four fathers, and four partners of the pregnant girls of the group were interviewed. The information on the individual and family situation before, during and after the pregnancy was recorded and transcribed, then analysed in three phases, comprising pre-analysis, exploration and interpretation. The pregnant teens had a family background of teen pregnancy. The girls disclosed feelings of repression, loneliness and indifference to their parents, leading them to unprotected sexual relations without fear of pregnancy. After the pregnancy, communication improved between the girls and their parents, but became worse with their partner. Consequently, these teens returned to feeling as they did before getting pregnant. They stated that they would make their situation work for the sake of their child, and regretted dropping out of school and getting pregnant so young. Almost all said they were seeking love outside the family, which revealed a scenario of limited communication and unsatisfactory relations within the family. Understanding how communication works between parents and children is necessary to avoid teenage pregnancy, as well as early marriage or cohabitation, resulting in dropping out of school and financial constraints, which lead to great frustrations between the couple and affects the child. In addition, it is vitally important that adolescents be motivated in the family setting in order for them to continue their studies. There is also an urgent need to implement measures that compensate for educational inequality, as well as to strengthen strategies aimed at adolescent mothers and pregnant teens that encourage their school performance through the support of scholarship programs and day care centres. Many of the problems inherent in adolescence are related to the lack of affection and support, and in many cases are a reaction to authoritarian rules or limits established unilaterally by parents with little or no dialogue involved.

27 September 2017 in Nutrients
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Journal Article
Open access
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RSReyna Sámano
Reyna Sámano
HMHugo Martinez-Rojano
Hugo Martinez-Rojano
GCGabriela Chico-Barba
Gabriela Chico-Barba
EGEstela Godínez-Martínez
Estela Godínez-Martínez
BSBernarda Sánchez-Jiménez
Bernarda Sánchez-Jiménez
MTMaricruz Tolentino
Maricruz Tolentino
Introduction: Gestational weight gain is an important modifiable factor known to influence fetal outcomes including birth weight and adiposity. Leptin is normally correlated with adiposity and is also known to increase throughout pregnancy, as the placenta becomes a source of leptin synthesis. Several studies have reported positive correlations between cord blood leptin level and either birthweight or size for gestational age, as well as body mass index (BMI). Objective: To determine the correlation of prenatal leptin concentration in pregnant adolescents with their gestational weight gain, postpartum weight retention, and weight/length of their newborn. Methods: A cohort study was conducted on pregnant Mexican adolescents from Gestational Week 26–28 to three months postpartum (n = 168 mother–child dyads). An anthropometric assessment was made of each pregnant adolescent, and the serum level of leptin and the intake of energy were determined. The newborn was evaluated each month during postpartum. Clinical records were reviewed to obtain sociodemographic data. Bivariate correlations, tests for repeating measurements and logistic regression models were performed. Results: Leptin concentration gradually increased during the third trimester of pregnancy. At Gestation Week 36, leptin level correlated with gestational weight gain. When comparing adolescents that had the lowest and highest concentration of leptin, the former presented a mean of 6 kg less in gestational weight gain (inter-subject leptin concentration, p = 0.001; inter-subject energy intake, p = 0.497). Leptin concentration and gestational weight gain exerted an effect on the weight of the newborn (inter-subject leptin concentration for Week 32, p = 0.024; inter-subject gestational weight gain, p = 0.011). Newborn length was associated with leptin concentration at Week 28 (leptin effect, p = 0.003; effect of gestational weight gain, p = 0.722). Conclusions: Pregnant adolescents with leptin concentration over 20 ng/mL showed a greater gestational weight gain. Leptin concentration correlated with length and weight of the newborn.

11 December 2023 in Diseases
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Journal Article
Open access
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HMHugo Martinez-Rojano
Hugo Martinez-Rojano
HHHeron Huerta
Heron Huerta
RSReyna Sámano
Reyna Sámano
GCGabriela Chico-Barba
Gabriela Chico-Barba
JMJennifer Mier-Cabrera
Jennifer Mier-Cabrera
EPEstibeyesbo Said Sigmund Reivaj Plascencia-Nieto
Estibeyesbo Said Sigmund Reivaj Plascencia-Nieto
Objective: This review aims to describe and compare the risk factors, clinical course, diagnosis, and parasitologic features of external ophthalmomyiasis. We also discuss the different preventive measures and the effect of global warming in a large case series reported from January 2000 to December 2022. Methods: We perform a literature review of reported cases of external ophthalmomyiasis to determine the clinical characteristics, therapeutic management, and information on the organisms that most commonly cause external ophthalmomyiasis. Results: A total of 312 cases of external ophthalmomyiasis were recorded. The most common causative organism was Oestrus ovis (Linnaeus) (Diptera: Oestridae), accounting for 72.1% of cases, followed by Dermatobia hominis (Linnaeus Jr. in Pallas, 1781) (Diptera: Oestridae) at 5.4%, Lucilia sericata (Meigen) (Diptera: Calliphoridae) at 0.96%, and Chrysomyia bezziana (Villeneuve) (Diptera: Calliphoridae) at 0.96%. Before experiencing symptoms, 43.6% of cases reported having direct contact with flies or being hit in the eye, 33% reported no associated risk factors, 9.3% reported living with sheep and goats, and 7.7% reported a history of foreign objects entering the eye. The most common symptoms for those affected by O. ovis were sudden onset, including a foreign body sensation and movement, redness, tearing, itching, swelling, irritation, photophobia, burning, and ocular secretion. In cases caused by D. hominis, symptoms included eyelid edema, pain, redness, itching, movement within the lesion, ocular irritation, and discharge. Regarding occupational or recreational activity, agriculture, and livestock had the highest incidence, followed by trades and technical activities, being a student, and having traveled to an endemic region for work or recreation. Conclusion: Patients with red eyes may suffer from external ophthalmomyiasis, which requires a thorough examination to diagnose and treat it early. Moreover, as the temperature increases due to climate change, it is essential to consider how this will affect the spread of different pathogens.

RSReyna Sámano
Reyna Sámano
CHCarmen Hernández-Chávez
Carmen Hernández-Chávez
GCGabriela Chico-Barba
Gabriela Chico-Barba
ACArmando Córdova-Barrios
Armando Córdova-Barrios
MOMayela Morales del Olmo
Mayela Morales del Olmo
HMHugo Martinez-Rojano
Hugo Martinez-Rojano
Skipping breakfast might have an impact on cognitive functions, such as interference, which is a basic capacity of executive functions that denotes the possibility of controlling an automated response. This study aimed to analyze the association between nutritional quality of breakfast and cognitive interference in a sample of university students. A cross-sectional study was conducted, a total of 422 students between 18 and 25 years participated. Cognitive interference was assessed with the Stroop Test. Breakfast was assessed with a questionnaire assigning a score for each serving of each food group that was consumed. Logistic regression models were performed. The performance in cognitive tasks was slower in those who had a poor breakfast (32.9 ± 6 vs 29.3 ± 6 s, p < 0.050). Poor cognitive interference was greater in students with poor breakfast (53% versus 23%, p = 0.001). A slower word reading was associated with skipping vegetables (OR: 2.78, 95% CI: 0.09–2.13), and cereals (OR: 1.70, 95% CI: 1.03–2.81). Wrong color identification was associated with skipping fruits (OR: 1.55, 95% CI: 1.43–1.99) and animal protein sources (OR: 1.63, 95% CI: 1.07–2.49). Skipping fat-rich cereals was a protector factor (OR: 0.55, 95% CI: 0.36–0.85). Difficulty in the ability to inhibit interference was associated with skipping vegetables (OR: 2.72, 95% CI: 1.25–4.80) and cereals (OR: 2.65, 95% CI: 1.28–4.68). The nutritional quality of breakfast was associated with the time spent answering the Stroop test, but not with cognitive interference.

30 January 2020 in Nutrients
Verified
Journal Article
Open access
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RSReyna Sámano
Reyna Sámano
CLCitlali Lara-Cervantes
Citlali Lara-Cervantes
HMHugo Martinez-Rojano
Hugo Martinez-Rojano
GCGabriela Chico-Barba
Gabriela Chico-Barba
BSBernarda Sánchez-Jiménez
Bernarda Sánchez-Jiménez
SHSolange Heller
Solange Heller
Pregnancy is a stage in a woman’s life when she is more open to receiving health advice, especially related to diet. However, women are often caught between receiving scientifically unfounded myths and concrete empirical knowledge. Culturally perpetuated myths may be acted upon more than knowledge, but research on these concepts, especially in the Americas, is scarce. This cross-sectional study aimed to describe the frequency of diet and nutrition myths and knowledge and describe the associated factors in pregnant mothers receiving care in Mexico City. A total of 695 pregnant adults and 322 pregnant adolescents participated in this study, in which they responded to a questionnaire on nutrition and diet myths, knowledge, and practice during pregnancy and breastfeeding. The myths were examined individually, but for the purposes of statistical analysis, a score was obtained. We compared means of variables that could be associated to myth and knowledge scores, then calculated linear and logistical regressions. Forty-six percent of participants had below the mean myth scores. Ninety-two percent of participants had a knowledge score below the mean. Age (β = 0.025, SE 0.007, 95% CI 0.011–0.040, p = 0.001) and years of education (β = 0.166, SE 0.024, 95% CI 0.119–0.213, p = 0.001) explained the myth’s score, while age explained the knowledge score (β = 0.011, SE 0.020, 95% CI −0.032–−0.008, p = 0.002). We found that although most women reported not believing in the myths, they acted on them. The probability of practicing such myths as “You must eat for two during pregnancy” was associated with being an adolescent (OR 1.76, p = 0.001) and being married (OR 1.47, p = 0.007), “Not satisfying cravings leave a mark on the infant’s body” with being adolescent (OR 1.59, p = 0.003) and low socioeconomic level (OR 1.41, p = 0.038), “A frightened or angry mother should not nurse her baby” with being adult (OR 2.61, p = 0.004), and “Drinking atole or beer enhances breast milk production” with being single (OR 2.07, p = 0.001). The probability of not acting on some knowledge was associated with being an adolescent (p ≤ 0.003) and having a high school education or below (p ≤ 0.046). Almost all of our participants held at least one myth about nutrition and diet during pregnancy and breastfeeding; younger participants showed a higher frequency of holding myths. Years of schooling and age were associated with acting on myths and not acting on correct knowledge.