Sex Differences in the Relationship between Personal, Psychological and Biochemical Factors with Blood Pressure in a Healthy Adult Mexican Population: A Cross-Sectional Study.

Hypertension is one of the main risk factors related to cardiovascular mortality, being the levels of blood pressure (BP) related to a variety of personal, anthropometric, biochemical and psychological variables; however, the study evaluating the association of all these factors in systolic blood pressure (SBP) and diastolic blood pressure (DBP) in a sample of relatively healthy subjects has not been performed. The aim of the study was to determine the main variables associated with SBP and DPB in a sample of relatively healthy subjects. A total of 171 participants were included, in which personal, anthropometric, positive and negative psychological variables and biochemical variables were measured. We observed that men showed higher levels of SBP and DBP than women, with more differences for SBP. Among the biochemical factors and SBP, we found that albumin and monocytes were positively correlated with it, while potassium, phosphorus and eosinophils were negatively correlated with it. Additionally, schooling was a constant variable negatively correlated with SBP in all samples (global, men and women). Among psychological variables, we observed that emotional perception was negatively correlated with SBP in men's and women's samples, while autonomy was positively correlated with SBP in the men's sample; however, their association was less when compared with the personal and biochemical variables included in the multivariate model. With regard to DBP, we observed that the biochemical variables, hemoglobin, sodium, uric acid and glucose, were positively correlated with DBP in the global sample, while chloride and BUN were negatively correlated with it. In addition, many personal and behavioral variables, including BMI, age and smoking consumption frequency, also correlated with DBP in the global sample. In conclusion, BP is affected by different factors, and these affect each sex differently.

Association of personal, behavioral and positive psychological variables with somatization and number of diseases in Mexican general population: the influence of gender.

The objective of the study is to determine the personal, behavioral and psychological variables associated with somatization and the number of diseases in each gender from a sample of Mexican general population. They answered a questionnaire of behavioral and psychological variables including somatization and the sum of 16 different diseases and any additional one, finally the body mass index (BMI) was measured. A total of 164 participants (women = 90, men = 74) were included. We observed that women had more somatization and number of diseases than men and that more variables (mainly psychological) were associated with somatization and with the number of diseases in women than in men. Among the variables most negatively correlated in women with both variables were sleep quality (r = -0.525 and r = -0.536, p < 0.001), self-acceptance (r = -0.460 and r = -0.501, p < 0.001), positive relations with others (r = -0.447 and r = -0.441 p < 0.001), environmental mastery (r = -0.414, p < 0.001, for both variables), purpose in life and optimism; while men only showed a low negative correlation between emotion regulation and the number of diseases (r = -0.289, p < 0.05). The positive associated variables in women were anxiety, negative emotions and depression; while men showed a lower correlation between these three variables only with somatization. The somatization and age were positively related to the number of diseases in both genders and the BMI was significantly associated with the number of diseases only in men. In conclusion, women had more somatization and number of diseases than men and also had more relation between psychological variables and the two dependent variables than men, which could in part explains the higher values of somatization and the number of diseases in women, considering that they usually present higher values of psychopathological variables.

Association of Depression, Anxiety, Stress and Stress-Coping Strategies with Somatization and Number of Diseases According to Sex in the Mexican General Population.

Somatization and number of diseases are interrelated variables, whose association with stress-coping strategies, according to sex, has not been investigated. Therefore, the aim of this study was to investigate such association in a sample of the Mexican general population. The general population was invited to answer an electronic questionnaire via the social networks-e-mail, WhatsApp and Facebook-by the research team. A sample of 1008 adults was obtained, of which 62.2% were women, in whom we detected higher levels of negative psychological variables, somatization and number of diseases and lower levels of sleep quality. Positive moderate correlations were found between depresion, anxiety and stress with somatization, on one hand, and with the number of diseases, on the other, and negative moderate correlations were found between sleep quality and the two dependent variables. As for the coping strategies, self-blame, behavioral disengagement, denial, self-distraction and substance use were positively correlated with somatization. Of these, self-blame, substance use, and self-distraction also showed a positive correlation with number of diseases in both sexes. Negative correlations were detected for active coping and the two dependent variables in men and for religion and planning with somatization in women. In conclusion, the coping strategies showed significant correlations with somatization and number of diseases in both sexes.

Generalized hypertrichosis syndromes in Mexico.

Hypertrichosis is a rare condition characterized by excessive hair in areas of the body that are not predominantly androgen dependent. We can identify three main syndromes with congenital generalized hypertrichosis terminalis described in Mexico. The first is X-linked generalized hypertrichosis, an ultra-rare disease, with few cases reported to date. The second is Cantú syndrome, also known as hypertrichotic osteochondrodysplasia, which has a wide spectrum of clinical manifestations and is caused by pathogenic variants in ABCC9 and KCNJ8. The third is congenital hypertrichosis terminalis with or without gingival hyperplasia, which displays other features and involves several associated genes. The first two syndromes were described by the Mexican geneticist José María Cantú, and the concept of atavistic genes was invoked to explain the emergence of this outstanding trait. By understanding the genetic and pathophysiological basis of hypertrichosis, we can offer effective treatment to patients and help solve esthetic problems related to hair growth.

GATA2 null mutation associated with incomplete penetrance in a family with Emberger syndrome.

INTRODUCTION: GATA2 mutations are associated with several conditions, including Emberger syndrome which is the association of primary lymphedema with hematological anomalies and an increased risk for myelodysplasia and leukemia. OBJECTIVE: To describe a family with Emberger syndrome with incomplete penetrance. METHODS: A DNA sequencing of GATA2 gene was performed in the parents and offspring (five individuals in total). RESULTS: The family consisted of 5 individuals with a GATA2 null mutation (c.130G>T, p.Glu44*); three of them were affected (two of which were deceased) while two remained unaffected at the age of 40 and 13 years old. The three affected siblings (two boys and one girl) presented with lymphedema of the lower limbs, recurrent warts, epistaxis and recurrent infections. Two died due to hematological abnormalities (AML and pancytopenia). In contrast, the two other family members who carry the same mutation (the mother and one brother) have not presented any symptoms and their blood tests remain normal. DISCUSSION: Incomplete penetrance may indicate that GATA2 haploinsufficiency is not enough to produce the phenotype of Emberger syndrome. It could be useful to perform whole exome or genome sequencing, in cases where incomplete penetrance or high variable expressivity is described, in order to probably identify specific gene interactions that drastically modify the phenotype. In addition, skewed gene expression by an epigenetic mechanism of gene regulation should also be considered.

Attitudes, Knowledge, Use, and Recommendation of Complementary and Alternative Medicine by Health Professionals in Western Mexico.

BACKGROUND: The use of complementary and alternative medicine (CAM) has increased in many countries, and this has altered the knowledge, attitudes, and treatment recommendations of health professionals in regard to CAM. METHODS: Considering Mexican health professionals׳ lack of knowledge of CAM, in this report we surveyed 100 biomedical researchers and Ph.D. students and 107 specialized physicians and residents of a medical specialty in Guadalajara, México (Western Mexico) with a questionnaire to address their attitudes, knowledge, use, and recommendation of CAM. RESULTS: We observed that significantly more researchers had ever used CAM than physicians (83% vs. 69.2%, P = .023) and that only 36.4% of physicians had ever recommended CAM. Female researchers tended to have ever used CAM more than male researchers, but CAM use did not differ between genders in the physician group or by age in either group. Homeopathy, herbal medicine, and massage therapy were the most commonly used CAMs in both the groups. Physicians more frequently recommended homeopathy, massage therapy, and yoga to their patients than other forms of CAM, and physicians had the highest perception of safety and had taken the most courses in homeopathy. All CAMs were perceived to have high efficacy (>60%) in both the groups. The attitude questionnaire reported favorable attitudes toward CAM in both the groups. CONCLUSIONS: We observed a high rate of Mexican health professionals that had ever used CAM, and they had mainly used homeopathy, massage therapy, and herbal medicine. However, the recommendation rate of CAM by Mexican physicians was significantly lower than that in other countries, which is probably due to the lack of CAM training in most Mexican medical schools.

Association of polymorphisms of genes involved in lipid metabolism with blood pressure and lipid values in mexican hypertensive individuals.

Hypertension and dyslipidemia exhibit an important clinical relationship because an increase in blood lipids yields an increase in blood pressure (BP). We analyzed the associations of seven polymorphisms of genes involved in lipid metabolism (APOA5 rs3135506, APOB rs1042031, FABP2 rs1799883, LDLR rs5925, LIPC rs1800588, LPL rs328, and MTTP rs1800591) with blood pressure and lipid values in Mexican hypertensive (HT) patients. A total of 160 HT patients and 160 normotensive individuals were included. Genotyping was performed through PCR-RFLP, PCR-AIRS, and sequencing. The results showed significant associations in the HT group and HT subgroups classified as normolipemic and hyperlipemic. The alleles FABP2 p.55T, LIPC -514T, and MTTP -493T were associated with elevated systolic BP. Five alleles were associated with lipids. LPL p.474X and FABP2 p.55T were associated with decreased total cholesterol and LDL-C, respectively; APOA5 p.19W with increased HDL-C; APOA5 p.19W and FABP2 p.55T with increased triglycerides; and APOB p.4181K and LDLR c.1959T with decreased triglycerides. The APOB p.E4181K polymorphism increases the risk for HT (OR = 1.85, 95% CI: 1.17-2.93; P = 0.001) under the dominant model. These findings indicate that polymorphisms of lipid metabolism genes modify systolic BP and lipid levels and may be important in the development of essential hypertension and dyslipidemia in Mexican HT patients.