Association between PON1 genetic polymorphisms and miscarriage in Mexican women exposed to pesticides.

Background: Placental oxidative stress has been involved in the pathogenesis of certain reproductive adverse effects, including miscarriage. Paraxonase 1 (PON1) is a high-density lipoprotein(HDL)-linked enzyme that prevents oxidation of low-density lipoproteins (LDL) and is involved in detoxification from organophosphate pesticides.

Objective: To assess the association between maternal PON1 polymorphisms (PON1192Q/R, PON155 L/M y PON1-108C/T) and the risk of miscarriage in women chronically exposed to organophosphate pesticides in Mexico.

Women's experiences of and perspectives on abortion at public facilities in Mexico City three years following decriminalization.

Objective: To understand the experiences of women undergoing legal first-trimester abortion through Mexico City's Ministry of Health (MOH) services. Aims included comparing satisfaction with medical and surgical abortion services; drawing evidence-based recommendations for program improvement; and measuring contraceptive uptake following abortion.

Methods: A total of 350 women completed a 65-item survey questionnaire at 2 main MOH abortion facilities.

Physical activity and fat mass gain in Mexican school-age children: a cohort study.

Background: In México, the prevalence of unhealthy weight increased from 24% at 6 y to 33% at 12 y of age, opening a window of opportunity to better understand the pathogenesis of obesity. The objective of this study was to explore the association between time spent on medium, vigorous physical activity (MVPA) and concurrent gains in BMI, fat mass (FM) and fat-free mass (FFM), alternately, in a cohort of Mexican children followed from kindergarten (baseline) to 2nd grade elementary school (endline).

Methods: The MVPA (5-d accelerometry), BMI, FM and FFM (air displacement plethysmography) were measured at baseline and endline.

Effect of current tobacco consumption on the male reproductive hormone profile.

The knowledge about the effect of cigarette smoking on the male reproductive function is still limited. The objective of this study was to evaluate the association between active exposure to tobacco smoke and the male reproductive hormone profile in a group of 136 Mexican flower growers. Serum levels of FSH, LH, prolactin, total testosterone, Inhibin B and estradiol were measured using enzyme-linked immunoabsorbent assay.

Effect of exposure to p,p'-DDE on male hormone profile in Mexican flower growers.

Objectives: p,p'-Dichlorodiphenyldichloroethene (p,p'-DDE) acts as an androgen receptor antagonist, however data regarding its hormonal effects in men are limited. The objective of this study was to evaluate the association between serum levels of p,p'-DDE and reproductive hormone profile in Mexican male flower growers.

Methods: A longitudinal study was carried out in a population of men working in the production of flowers and ornamental plants in two Mexican states during July-October 2004 (rainy season) and December 2004-May 2005 (dry season).

Exposure to organophosphate pesticides and male hormone profile in floriculturist of the state of Morelos, Mexico.

Background: Studies on experimental animals have found that organophosphate (OP) pesticides may act as endocrine disruptors; however, their effects on the human hormonal profile have not yet been adequately characterized. We evaluate the association between exposure to OP pesticides, measured through dialkyl phosphate (DAP) metabolites urinary levels, and the male hormone profile.

Methods: A cross-sectional study was performed in 104 floriculturists of Morelos, Mexico.

Poverty and gender perspective in productive projects for rural women in Mexico: impact evaluation of a pilot project.

The objective of this study is to evaluate the impact of a pilot study that promoted productive and capacity-building activities among deprived rural women of Mexico. The evaluation design is observational; 1,278 women are interviewed, and the comparison group is estimated by propensity score matching. The results show a positive impact on the carrying out of agricultural activities, in the autonomy of women in decision making, as does their perception of their role in the household.

Association between Helicobacter pylori VacA antigens and gastric cancer depends on the detection method used: immunoblot versus neutralization of the vacuolating activity of VacA.

There are inconsistent findings on the association between Helicobacter pylori anti-VacA antibodies and gastric cancer (GC) risk. The lack of optimally sensitive and specific methods to detect anti-VacA antibodies may partly be responsible for this discrepancy. The aim of this study was to compare the association between GC and the presence of anti-VacA antibodies using two different detection methods.

Exclusive breastfeeding in 3 rural localities in Mexico.

The purpose of this study was to assess the factors associated with exclusive breastfeeding (EBF) during the first 6 months of life. A prospective, cohort study was conducted in 291 newborn children in 3 semirural localities in Mexico. Data were collected on infant-feeding practices, anthropometry, morbidity, and maternal and household characteristics.

Pedestrian traffic injuries in Mexico: a country update.

Road traffic injuries in general and pedestrian injuries in particular are a major public health problem in Mexico, especially in large urban areas. Analysis of mortality and road crashes at the national level was done using routine data recorded on death certificates. Fatality rates for different age groups were estimated by region for the year 2000.

Financing indicators for health care decentralization in Latin America: information and suggestions for health planning.

This article presents the results from an evaluative longitudinal study with before-after design. The main objective was to determine the effects of health care decentralization on changes in health financing. Taking into account feasibility, political and technical criteria, three Latin American countries were selected as study populations: Mexico, Nicaragua and Peru.

Analysis of fatal pedestrian injuries in Mexico City, 1994-1997.

Currently, in Mexico City, 57% of deaths from traffic crashes are pedestrian injuries. The purpose of this study was to identify and analyse the magnitude, trends, risks, and geographic distribution of fatal pedestrian injuries during the period 1994-1997. A cross-sectional study design was used, based on the death certificates of persons who were in Mexico City during 1994-1997 and died due to pedestrian injuries.

The risk of prematurity and small-for-gestational-age birth in Mexico City: the effects of working conditions and antenatal leave.

Objectives: This study examined the effect of working conditions, occupational stress, and antenatal leave on risk of small-for-gestational age and premature births in Mexico City.

Methods: Over a 3-month period, 2663 (96.2%) of 2767 women who gave birth at three major hospitals and worked at least 3 months during pregnancy were interviewed shortly after delivery.

In vitro activity of several antimicrobial agents against genital mycoplasmas.

The increasing resistance of genital mycoplasmas to tetracyclines is a serious problem, since this group of antibiotics is one of the few that is effective against virtually all species of mycoplasmas. Tetracyclines are also used to treat many sexually transmitted diseases. In this study, we assessed the susceptibility of Mycoplasma hominis and Ureaplasma urealyticum to macrolides, tetracyclines, spectinomycin, and trospectomycin by the agar dilution method.

The constitution of physicians' power: a theoretical framework for comparative analysis.

Drawing on literatures documenting the experience of physicians in both European and American societies, a new theoretical framework for explaining variations in the professional power of physicians is provided. Most studies of professions have used professional organization as the principal explanatory variable, with state policy and the organization of civil society as secondary mediating factors. Our approach instead treats strategies of state power and forms of civil society as central features shaping the ability of the profession to exert power.