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排序方式: 共有755条查询结果,搜索用时 15 毫秒
91.
92.
Noyola DE Malacara-Alfaro O Lima-Rogel V Torres-Montes A 《Salud pública de México》2006,48(2):151-154
OBJECTIVE: To determine the seroprevalence of syphilis in pregnant women. METHODS: A seroepidemiologic survey was conducted in 1857 women giving birth at a general hospital in the city of San Luis Potosi, Mexico. RESULTS: Five women (0.27%) were diagnosed with syphilis at the time of delivery. Maternal factors associated with a greater likelihood of syphilis included older age, a higher number of pregnancies and living out of wedlock. CONCLUSIONS: The number of new bhorns exposed to syphilis during pregnancy in San Luis Potosi is underestimated. The results of this study support the need to identify syphilis in infected mothers at the time of delivery. 相似文献
93.
Despite having achieved an average life expectancy of 75 years, much the same as that of more developed countries, Mexico entered the 21st century with a health system marred by its failure to offer financial protection in health to more than half of its citizens; this was both a result and a cause of the social inequalities that have marked the development process in Mexico. Several structural limitations have hampered performance and limited the progress of the health system. Conscious that the lack of financial protection was the major bottleneck, Mexico has embarked on a structural reform to improve health system performance by establishing the System of Social Protection in Health (SSPH), which has introduced new financial rules and incentives. The main innovation of the reform has been the Seguro Popular (Popular Health Insurance), the insurance-based component of the SSPH, aimed at funding health care for all those families, most of them poor, who had been previously excluded from social health insurance. The reform has allowed for a substantial increase in public investment in health while realigning incentives towards better technical and interpersonal quality. This paper describes the main features and initial results of the Mexican reform effort, and derives lessons for other countries considering health-system transformations under similarly challenging circumstances. 相似文献
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Rosa Estrada-Reyes C. López-Rubalcava Octavio Alberto Ferreyra-Cruz Ana María Dorantes-Barrón G. Heinze Julia Moreno Aguilar Mariano Martínez-Vázquez 《Journal of ethnopharmacology》2014
Ethnopharmacological relevance
Agastache mexicana subspecies mexicana (Amm) and xolocotziana (Amx) are used in Mexican traditional medicine to relief cultural affiliation syndromes known as “susto” or “espanto”, for “nervous” condition, and as a sleep aid. Despite its intensive use, neuropharmacological studies are scarce, and the chemical composition of the aqueous extracts has not been described. Aims of the study are: (1) To analyze the chemical composition of aqueous extracts from aerial parts of Amm and Amx. (2) To evaluate the anxiolytic-like, sedative, antidepressant-like effects. (3) Analyze the general toxic effects of different doses.Materials and methods
Anxiolytic-like and sedative effects were measured in the avoidance exploratory behavior, burying behavior and the hole-board tests. The antidepressant-like actions were studied in the forced swimming and tail suspension tests. Finally, general activity and motor coordination disturbances were evaluated in the open field, inverted screen and rota-rod tests. The acute toxicity of Amm and Amx was determined by calculating their LD50 (mean lethal dose). The chemical analyses were performed employing chromatographic, photometric and HPLC–ESI-MS techniques.Results
Low doses of Amm and Amx (0.1σ1.0 mg/kg) induced anxiolytic-like actions; while higher doses (over 10 mg/kg) induced sedation and reduced the locomotor activity, exerting a general inhibition in the central nervous system (CNS).Conclusions
Results support the use of Amm and Amx in traditional medicine as tranquilizers and sleep inducers. Additionally, this paper contributes to the knowledge of the chemical composition of the aqueous extracts of these plants. 相似文献96.
Chedraui P Pérez-López FR Schwager G Sánchez H Aguirre W Martínez N Miranda O Plaza MS Astudillo C Narváez J Quintero JC Zambrano B 《Maturitas》2012,72(2):152-156
Background
Studies reporting on resilience (capacity to overcome life adversity) and the menopausal transition are scarce.Objective
To assess resilience and related factors in mid-aged Ecuadorian women.Method
This was a cross sectional study in which 904 women aged 40–59 completed the 14-item Wagnild and Young Resilience Scale (WYRS) and a general socio-demographic questionnaire containing personal and partner data. Lower total WYRS scores indicate less resilience. Internal consistency of the tool was also assessed.Results
Median age of all surveyed women was 49 years. A 51.1% were postmenopausal, 43.8% lived high altitude, 43.5% were abdominally obese, 12.6% used hormone therapy and 80.8% had a partner. Internal consistency was high for the WYRS tool (Cronbach's alpha: 0.94). Multiple linear regression analysis determined that lower total WYRS scores (less resilience) correlated with high altitude residency, more severe hot flushes, sedentarism, higher abdominal circumferences and having a partner with erectile dysfunction. Contrary to this, higher WYRS scores correlated with higher parity and sexual activity.Conclusion
As assessed with the WYRS tool, lower resilience of this mid-aged Ecuadorian female sample was related to various female and partner lifestyle and health issues, not necessarily related per se to the ageing process. More research using the tool is warranted. 相似文献97.
Merino O Almazán C Canales M Villar M Moreno-Cid JA Galindo RC de la Fuente J 《Vaccine》2011,29(47):8575-8579
The ultimate goal of vector vaccines is the control of vector infestations while reducing pathogen infection and transmission to protect against the many diseases caused by vector-borne pathogens. Previously (Vaccine 2011;29:2248-2254), we demonstrated that subolesin vaccination and release of tick larvae after subolesin knockdown by RNA interference (RNAi) were effective for the control of cattle tick, Rhipicephalus (Boophilus) microplus infestations in cattle. In this study, we used the fact that these animals were naturally infected with Anaplasma marginale and Babesia bigemina to evaluate the effect of subolesin vaccination and gene knockdown on tick infection by these cattle tick-transmitted pathogens. Ticks fed on vaccinated cattle had lower subolesin mRNA levels when compared to controls, resembling RNAi results. A. marginale and B. bigemina infection was determined by PCR and decreased by 98% and 99%, respectively in ticks fed on vaccinated cattle and by 97% and 99%, respectively after subolesin knockdown. These results demonstrated that targeting subolesin expression by vaccination or RNAi results in lower subolesin mRNA and pathogen infection levels, probably due to the effect of subolesin downregulation on tick feeding, gene expression and gut and salivary glands tissue development and function. These results suggested that subolesin vaccines could be used for the dual control of tick infestations and pathogen infection, a result that could be relevant for other vectors and vector-borne pathogens. 相似文献
98.
99.
100.
Sonia Moreno-Grau Itziar de Rojas Isabel Hernández Inés Quintela Laura Montrreal Montserrat Alegret Begoña Hernández-Olasagarre Laura Madrid Antonio González-Perez Olalla Maroñas Maitée Rosende-Roca Ana Mauleón Liliana Vargas Asunción Lafuente Carla Abdelnour Octavio Rodríguez-Gómez Silvia Gil Miguel Ángel Santos-Santos Agustín Ruiz 《Alzheimer's & dementia》2019,15(10):1333-1347
IntroductionLarge variability among Alzheimer's disease (AD) cases might impact genetic discoveries and complicate dissection of underlying biological pathways.MethodsGenome Research at Fundacio ACE ([email protected]) is a genome-wide study of dementia and its clinical endophenotypes, defined based on AD's clinical certainty and vascular burden. We assessed the impact of known AD loci across endophenotypes to generate loci categories. We incorporated gene coexpression data and conducted pathway analysis per category. Finally, to evaluate the effect of heterogeneity in genetic studies, [email protected] series were meta-analyzed with additional genome-wide association study data sets.ResultsWe classified known AD loci into three categories, which might reflect the disease clinical heterogeneity. Vascular processes were only detected as a causal mechanism in probable AD. The meta-analysis strategy revealed the ANKRD31-rs4704171 and NDUFAF6-rs10098778 and confirmed SCIMP-rs7225151 and CD33-rs3865444.DiscussionThe regulation of vasculature is a prominent causal component of probable AD. [email protected] meta-analysis revealed novel AD genetic signals, strongly driven by the presence of clinical heterogeneity in the AD series. 相似文献