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1.
Reprod Sci ; 31(10): 3202-3214, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39043998

RESUMEN

Ovarian puncture has been widely used in assisted reproduction, but there are still gaps about its effects on ovarian morphophysiology, as well as the relationship between inflammation caused by this procedure and the follicular growth and fertility. The aim of this study was to investigate the effects of ovarian puncture on folliculogenesis and fertility. Mice (n = 24) were divided into two groups: (1) SHAM-both ovaries were exposed and repositioned and (2) Punctured-ovaries were exposed, punctured, and repositioned. After 96 h of surgery, ovaries were collected for morphofunctional analysis. New females were used for the superovulation (n = 10) and fertility assays (n = 10). Increased volumetric density of inflammatory cells-p = 0.0005, p = 0.0013; hemorrhagic foci-p < 0.0001; and inflammatory exudate-p < 0.0001 could be noticed on the punctured group, compared to SHAM. The percentage of primordial follicles was lower on the punctured ovaries (p = 0.00294). Ovarian puncture has also induced an increase in the proliferation of granulosa cells of primary (p = 0.0321) and antral follicles (p = 0.0395), and an increased apoptotic index of antral follicles (p = 0.0100). There was no influence on expression of some genes related to inflammation, collagen deposition and folliculogenesis progression. The reproductive aspects (oocyte retrieval and number of fetuses per female) were not altered (p > 0.05). Taken together, our findings strongly suggest that ovarian puncture results in a local inflammation that affects follicular growth and atresia. However, it does not affect female fertility, which strengthens the safety of this procedure.


Asunto(s)
Fertilidad , Inflamación , Folículo Ovárico , Ovulación , Punciones , Femenino , Animales , Folículo Ovárico/patología , Ratones , Inflamación/patología , Ovario/patología , Apoptosis
2.
J Stroke Cerebrovasc Dis ; 30(12): 106148, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34644665

RESUMEN

Studies have demonstrated the beneficial effects of light- and moderate-intensity physical exercise on the nervous system of animals with cerebral ischemia. To investigate the effects of two high-intensity physical exercise protocols, standardized for resistance and strength gain, in rats trained before cerebral ischemia induced by Bilateral Common Carotid Artery Occlusion (BCCAO). Forty-eight male Wistar rats were divided into two groups: with ischemia and without ischemia (sham). Both groups were subdivided into animals that performed high-intensity exercises in the muscle strength modality (I+Ex2; Sham+Ex2; n=16); animals submitted to high-intensity exercises in the aerobic modality (I+Ex1; Sham+Ex1; n=16), and animals that did not practice physical exercises - sedentary (I+Sed; Sham+Sed, n=16). Cerebral ischemia was induced using the BCCAO model. The physical training program used before the procedure was of high intensity, in the aerobic and muscular strength modalities, and was performed using a vertical ladder, for 4 weeks, 5 days per week. In order to process and stain the brain tissue, the Nissl method was used for neuron labeling and quantification in the cortex, striatum, and hippocampus. As for the animals' body weight and the heart weight differences were found between the groups I+Ex2 and Sham+Ex2 (p<0.05). Data on neuron quantification in the cerebral cortex, dentate gyrus, and right and left striatum revealed significant differences between groups. High-intensity physical training in the strength gain modality promotes significant damage to the animal's brain when performed prior to BCCAO-induced cerebral ischemia.


Asunto(s)
Lesiones Encefálicas , Isquemia Encefálica , Condicionamiento Físico Animal , Animales , Lesiones Encefálicas/epidemiología , Isquemia Encefálica/etiología , Enfermedades de las Arterias Carótidas/complicaciones , Masculino , Condicionamiento Físico Animal/efectos adversos , Condicionamiento Físico Animal/fisiología , Ratas , Ratas Wistar
3.
R Soc Open Sci ; 7(2): 191853, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-32257342

RESUMEN

Astyanax mexicanus has gained importance as a laboratory model organism for evolutionary biology. However, little is known about its intermediary metabolism, and feeding regimes remain variable between laboratories holding this species. We thus aimed to evaluate the intermediary metabolism response to nutritional status and to low (NC) or high (HC) carbohydrate diets in various organs of the surface-dwelling form of the species. As expected, glycaemia increased after feeding. Fish fed the HC diet had higher glycaemia than fish fed the NC diet, but without displaying hyperglycaemia, suggesting that carbohydrates are efficiently used as an energy source. At molecular level, only fasn (Fatty Acid Synthase) transcripts increased in tissues after refeeding, suggesting an activation of lipogenesis. On the other hand, we monitored only moderate changes in glucose-related transcripts. Most changes observed were related to the nutritional status, but not to the NC versus HC diet. Such a metabolic pattern is suggestive of an omnivorous-related metabolism, and this species, at least at adult stage, may adapt to a fish meal-substituted diet with high carbohydrate content and low protein supply. Investigation to identify molecular actors explaining the efficient use of such a diet should be pursued to deepen our knowledge on this species.

4.
Stud Health Technol Inform ; 245: 59-63, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29295052

RESUMEN

For healthcare professionals to use mobile applications we need someone who knows software development, provide them. In healthcare institutions, health professionals use clinical protocols to govern care, and sometimes these documents are computerized through mobile applications to assist them. This work aims to present a proposal of an application of flow as a way of describing clinical protocols for automatic generation of mobile applications to assist health professionals. The purpose of this research is to enable health professionals to develop applications from the description of their own clinical protocols. As a result, we developed a web system that automates clinical protocols for an Android platform, and we validated with two clinical protocols used in a Brazilian hospital. Preliminary results of the developed architecture demonstrate the feasibility of this study.


Asunto(s)
Protocolos Clínicos , Aplicaciones Móviles , Diseño de Software , Automatización , Brasil , Telemedicina
5.
J. health inform ; 8(supl.I): 619-630, 2016. ilus, tab, graf
Artículo en Portugués | LILACS | ID: biblio-906555

RESUMEN

Atualmente, com a popularização de smartphones, profissionais da saúde podem contar com aplicativos de auxílio ao atendimento clínico. Este trabalho objetiva apresentar uma ferramenta web para geração automática de aplicativos móveis. Seu propósito é permitir que os profissionais da saúde desenvolvam esses aplicativos a partir da descrição dos seus próprios protocolos clínicos. Para isso, primeiramente verificou-se na literatura trabalhos relacionados com geração de aplicativos automáticos e a área de saúde. Após, foi estudado os protocolos clínicos e então foi desenvolvido a arquitetura e lógica de uma ferramenta de geração automática de aplicativos móveis a partir da descrição gráfica de protocolos clínicos. Como resultado, foi desenvolvido um sistema web que automatiza protocolos clínicos para a plataforma Android. A arquitetura desenvolvida proporcionou resultados preliminares que aprovam a viabilidade destes estudo.


Currently, with the popularization of smartphones, healthcare professionals can take advantage of mobile applications to support clinical care. This paper introduces a software tool for automatic generation of mobile applications. The central idea is to allow health professionals to develop these applications from the description of their ownclinical protocols. Thus, the automatic generation of applications in healthcare have been properly investigated in the existing literature. Afterwards, the clinical protocols were studied and then the architecture and logic of the proposed tool was developed from the graphic description of clinical protocols. Consequently, a web system that automates clinical protocols for the Android platform was developed. Preliminary results of the developed architecture demonstrate the feasibility of this study.


Asunto(s)
Humanos , Protocolos Clínicos , Teléfono Celular , Flujo de Trabajo , Aplicaciones Móviles , Congresos como Asunto
6.
BMC Public Health ; 2: 1, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-11860611

RESUMEN

BACKGROUND: Race is commonly described in epidemiological surveys based on phenotypic characteristics. Training of interviewers to identify race is time-consuming and self identification of race might be difficult to interpret. The aim of this study was to determine the agreement between race definition based on the number of ascendants with black skin colour, with the self-assessment and observer's assessment of the skin colour. METHODS: In a cross-sectional study of 50 women aged 14 years or older, from an outpatient clinic of an University affiliated hospital, race was assessed through observation and the self-assignment of the colour of skin and by the number of black ascendants including parents and grandparents. Reliability was measured through Kappa coefficient. RESULTS: Agreement beyond chance between self-assigned and observed skin colour was excellent for white (0.75 95% CI 0.72-0.78) and black women (0.89 95% CI 0.71-0.79), but only good for participants with mixed colour (0.61 95% CI 0.58-0.64), resulting in a global kappa of 0.75 (95% CI 0.71-0.79). However, only a good agreement for mixed women was obtained. The presence of 3 or more black ascendants was highly associated with observed and self-assessed black skin colour. Most women self-assigned or observed as white had no black ascendants. CONCLUSIONS: The assessment of race based on the race of ascendants showed reasonable agreement with the ascertainment done by trained interviewers and with the self-report of race. This method may be considered for evaluation of race in epidemiological surveys, since it is less time-consuming than the evaluation by interviewers.


Asunto(s)
Negro o Afroamericano/clasificación , Observación , Linaje , Grupos Raciales/clasificación , Autoevaluación (Psicología) , Población Blanca/clasificación , Adolescente , Adulto , Anciano , Población Negra , Brasil , Color , Estudios Transversales , Estudios Epidemiológicos , Femenino , Hospitales de Enseñanza/estadística & datos numéricos , Humanos , Persona de Mediana Edad , Servicio Ambulatorio en Hospital/estadística & datos numéricos , Reproducibilidad de los Resultados , Piel , Encuestas y Cuestionarios
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