检索结果-南通市图书馆

Association between Metabolic Syndrome and Erythrocyte Fatty Acid Profile in Mexican Adolescents: A Trans Fatty Acid Approach

引用

Food and Nutrition Sciences 2013年第9期4卷 51-58页

作者： martínez-Razo Gabriel martínez-basila azucena Salas-Fernández Alejandra Maldonado-Hernández Jorge Mass Spectrometry Laboratory Research Unit in Medical Nutrition Pediatric Hospital National Medical Center 21st Century Mexican Institute of Social Security Mexico City Mexico.

The type of fat consumed in the Mexican diet could predispose to the development of Metabolic Syndrome (MS) which has been associated with an increased risk to develop cardiovascular disease and type 2 diabetes mellitus. Our study included adolescents between 12 and 16 years of age, divided in two groups: Control Group (n = 31) and MS Group (n = 44). Waist circumference, blood pressure, fasting glucose, triglycerides, and HDL-cholesterol were determined. Erythrocytes’ fatty acids methyl esthers were quantified using gas chromatography with ionized flame detector. We identified 16 fatty acids (FA) with chain lengths from C12 to C24, with emphasis in four trans FA (TFA) isomers: vaccenic (C18:1n7t), elaidic (C18:1n9t), linoelaidic (C18:2n6t), and conjugated linoelaidic acids (C18:2n7t). MS Group had a less proportion of: myristic (C14), palmitoleic (C16:1), C18:1n7t, and linoleic acids (C18:2);and a higher one of C18:1n9t, C18:2n7t, and nervonic acids (C24:1) when compared to the control group. C24:1 and C18:1n9t had a significant positive association with MS (OR = 14.17 and OR = 12.94, respectively);whereas C14 (OR = 0.14), C18:1n7t (OR = 0.14), and C18:2 (OR = 0.22) appear to have a protective effect against the disease. The proportion of specific FAs in erythrocytes’ membranes differs between adolescents with MS and healthy controls;these FA not only showed a strong association with MS, but also correlated with most of its individual components. Interestingly, TFA displayed an antagonic behavior;while C18:1n9t had a strong association with MS, apparently C18:1n7t confers a protective effect;these results suggest that analyzing each TFA separately will constitute a more accurate approach to determine the role of TFAs in the pathogenesis of MS or other related metabolic disorders.

关键词： Metabolic Syndrome Fatty Acid Profile Erythrocyte Membrane

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Attenuation of UV-C Solar Radiation as a Function of Altitude(0≤z≤100 km):Rayleigh Diffusion and Photo Dissociation of O_(2) Influence

引用

Atmospheric and Climate Sciences 2017年第4期7卷 540-553页

作者： Jose Luis Pinedo-Vega Carlos Rios-martínez David Jacobo Navarro-Solis J.Ignacio Davila-Rangel Fernando Mireles-Garcia Sonia azucena Saucedo-Anaya Eduardo Manzanares-Acuna Valentin Badillo-Almaraz Department:UAEN Universidad Autonoma de ZacatecasZacatecasMexico

In this paper, we present an analysis of attenuation for UV-C radiation () as a function of the altitude z () by calculating the interaction ratio between the UV-C radiation and the molecular species susceptible of interact with UV-C radiation. The Rayleigh scattering spectral cross sections were calculated, the UV-C spectral cross sections of the species susceptible of interact with UV-C radiation and the UV extraterrestrial (ETR) solar spectrum were standardized with wavelength steps of 1 nm, and The International Standard Atmosphere model (ISO 1972) was adapted to calculate the molecular density. These data were utilized to calculate the photodissociation and Rayleigh scattering ratios as a function of the altitude and to determine to what measure the photodissociation and the Rayleigh diffusion were determinants of the attenuation of UV-C radiation. It became clear that the photo dissociation of O2 is the primordial mechanism of attenuation for the UV-C radiation, but the Rayleigh diffusion appears like a mechanism that encreases the photon flux, raising the performance of the O2 photodissociation. The attenuation capacities of N2O, CO2 and water vapor (H2O) over the UV-C radiation are all similar, although smaller (less than 0.6%), and this is due to their low concentration. The O3, has the theoretical greater attenuation capacity, but it is found in mid-range altitudes? (), where the residual UV-C photons has almost vanished by O2 photo dissociation or Rayleigh diffusion, so the real effect over the UV-C attenuation is minimum.

关键词： UV-C Radiation Rayleigh Scattering O_(2) Photodissociation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Influence of the Type of Circulatory/Ventricular Assistance in the Primary Graft Failure and Heart Transplantation Mortality

引用

World Journal of Cardiovascular Diseases 2019年第8期9卷 545-552页

作者： Raquel López-Vilella Ignacio J.Sánchez-Lázaro María Paz Fuset Cabanes azucena Pajares Moncho Lucía Donate Bertolín Ricardo Gimeno Costa Ignacio Moreno Puigdollers Luis martínez Dolz Iratxe Zarragoikoetxea Jauregui Salvador Torregrosa Puerta Luis Almenar Bonet Heart Failure and Transplant Unit Hospital Universitario y Politécnico La FeValenciaSpain Intensive Care Department Hospital Universitario y Politécnico La FeValenciaSpain Anesthesiology Department Hospital Universitario y Politécnico La FeValenciaSpain Cardiovascular Surgery Department Hospital Universitario y Politécnico La FeValenciaSpain

OBJECTIVES: In recent years, the percentage of heart transplantation (HT) with short/medium-term assistance devices has increased. This study aims at analyzing primary graft failure and in-hospital mortality according to the type of care. MATERIAL AND METHODS: From January 2013 to December?2017 all patients undergoing urgent HT with circulatory/ventricular assistance?were retrospectively and consecutively recruited. Combined transplants, retransplantations and pediatric transplants were excluded. The sample was divided in 10 groups according to the type of shot/medium term assistance devices. RESULTS: A total of 53 patients were recruited, 79% men, average age 49 ± 13 years. 26 patients (51%) had mechanical ventilation at the time of the HT. Primary graft failure occurred in 20 patients (38.5%), whilst it was more frequent in patients assisted with ECMO (8 patients in group 1 (45%) and 7 in group 2 (54%), p 0.5). 14 deaths (27%) were registered, whereas a higher mortality was observed in the group assisted with ECMO (6 patients in group 1 (34%) and 4 in group 2 (31%), p 0.6). Mortality was 17% in the group of non-urgent Levitronix. CONCLUSIONS: Despite not showing statistical significance due to the low number of patients in some subgroups, hospital?mortality was high in HT patients with circulatory assistance. A trend towards a higher incidence of primary graft failure and mortality in patients assisted with ECMO was observed. The direct implantation of a centrifugal pump as a bridge to urgent transplantation could identify a subgroup with a better prognosis.

关键词： Urgent Heart Transplantation Short-Medium Term Circulatory/Ventricular Assistance Primary Graft Failure

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Modeling Violence Among and Against University Students in a Mexican Medium-Sized City

引用

Chinese Business Review 2020年第6期19卷 226-239页

作者： Alicia Sylvia Gijón-Cruz Rafael G.Reyes-Morales Blanca azucena García-Ramírez Juan Luis Bautista-martínez Nadia Esteva-Duran Universidad Autónoma Benito Juárez de Oaxaca State of OaxacaMexico Tecnológico Nacional de México/Instituto Tecnológico de Oaxaca State of OaxacaMexico

Violence against university students and among them is analyzed on campus and the household as well as the relationships of violence between these two social *** study was undertaken through an anonymous random survey in the two larger public universities in a Mexican medium-sized *** violence and types of violence-verbal,psychological,sexual,and physical-were evaluated by sex and by universities;and the aggressors were identified.A students’concept of violence was built,considering causes of intimate-partner violence,violence in general and ethical judgment on gender ***,it was measured the relationships between violence on campus and in the household using bivariate statistical *** indicate the main aggressors on campus are classmates and professors,whereas in the household are the mother,relatives together with the parents and relatives without the ***-campus,there were found statistically significant associations between professors-aggressors and students as victims of violence by *** the household,the bivariate analysis confirmed mothers as single aggressors and fathers exerting violence together with relatives against student-children;and direct relationships between on-campus(psychological and sexual violence)and domestic(physical and sexual violence).

关键词： types of violence violence by sex aggressors students’concept of violence

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：