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Obesity and sex hormones in lung injury

Processo: 12/50550-4
Modalidade de apoio:Auxílio à Pesquisa - Regular
Vigência: 01 de outubro de 2012 - 30 de setembro de 2014
Área do conhecimento:Ciências Biológicas - Farmacologia
Convênio/Acordo: King's College London
Pesquisador responsável:Wothan Tavares de Lima
Beneficiário:Wothan Tavares de Lima
Pesq. responsável no exterior: Yanira Riffo Vasquez
Instituição no exterior: King's College London, Inglaterra
Instituição Sede: Instituto de Ciências Biomédicas (ICB). Universidade de São Paulo (USP). São Paulo , SP, Brasil
Vinculado ao auxílio:09/54823-2 - Avaliacao do papel dos hormonios sexuais femininos e do sistema linfatico no controle da inflamacao pulmonar e sistemica apos a isquemica e reperfusao intestinal em ratas, AP.R
Assunto(s):Obesidade  Acidente vascular cerebral  Hormônios sexuais femininos  Reperfusão miocárdica 
Palavra(s)-Chave do Pesquisador:Ischemia And Reperfusion | Lung Inflammation | Mice | Obesity | Platelets | Sex Hormones

Resumo

There is no general consensus of a positive correlation between high body mass index (BMI) and trauma-induced mortality. Some studies suggest that obese patients are more likely to have a negative outcome from trauma and sepsis because they already constitutively express many of the inflammatory mediators observed in this condition. However, other studies have reported that mortality it is not positively correlated to body mass index (BMI) but it seems to correlate with morbidity. Interestingly, in some studies a negative correlation between mortality and BMI was found, suggesting a protective role of obesity in cases of acute lung injury. Interestingly, despite the evidence showing the influence of sex hormones or obesity on lung injury and ischemic trauma in general, the interaction between these two factors has been poorly investigated. A recent study has shown a correlation between abdominal adipose mass is associated with an increased risk of myocardial infarct in women but not in men. Conversely, other studies have failed to establish a correlation between gender and ischemic stroke among obese patients. In summary, the main experimental aim of this proposal are to investigate the role of female sex hormones in the physiopathology of intestinal l/R in obese mice with or without ovaries (ovariectomized). We will measure inflammatory cell migration and mediator release, platelet migration and platelet mediators release. (AU)

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Publicações científicas
(Referências obtidas automaticamente do Web of Science e do SciELO, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores)
FANTOZZI, EVELYN THAIS; RODRIGUES-GARBIN, SARA; RICARDO-DA-SILVA, FERNANDA YAMAMOTO; OLIVEIRA-FILHO, RICARDO MARTINS; SPINA, DOMENICO; TAVARES-DE-LIMA, WOTHAN; RIFFO-VASQUEZ, YANIRA. Acute lung injury induced by intestinal ischemia and reperfusion is altered in obese female mice. Pulmonary Pharmacology & Therapeutics, v. 49, p. 54-59, . (10/51330-2, 12/50550-4)

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