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Full-Text Articles in Medicine and Health Sciences

Race, Gender And Stroke Subtypes Mortality In Sao Paulo, Brazil., Paulo A. Lotufo Jan 2007

Race, Gender And Stroke Subtypes Mortality In Sao Paulo, Brazil., Paulo A. Lotufo

Paulo A Lotufo

Stroke mortality rates have a discrepant distribution according to socioeconomic variables as social exclusion in Brazil. Recently, data from race has been available from the official health statistics considering five categories: White, Mixed, Black, Asian and Native. We addressed in the city of São Paulo, Brazil, an analysis of cerebrovascular mortality according to race (excluding Asian and Native due to small number of events) and gender during 1999-2001 for people aged 30 to 79 years-old. For all cerebrovascular diseases, age-adjusted mortality rates (x 100,000) for men were higher for Black (150.2), intermediate for Mixed (124.2) and lower for White (104.5) …


Structure And Thermodynamics Of A Conserved U2 Snrna Domain From Yeast And Human, Dipali G. Sashital, Vincenzo Venditti, Courtney G. Angers, Gabriel Cornilescu, Samuel E. Butcher Jan 2007

Structure And Thermodynamics Of A Conserved U2 Snrna Domain From Yeast And Human, Dipali G. Sashital, Vincenzo Venditti, Courtney G. Angers, Gabriel Cornilescu, Samuel E. Butcher

Vincenzo Venditti

The spliceosome is a dynamic ribonucleoprotein complex responsible for the removal of intron sequences from pre-messenger RNA. The highly conserved 5′ end of the U2 small nuclear RNA (snRNA) makes key base-pairing interactions with the intron branch point sequence and U6 snRNA. U2 stem I, a stem–loop located in the 5′ region of U2, has been implicated in spliceosome assembly and may modulate the folding of the U2 and U6 snRNAs in the spliceosome active site. Here we present the NMR structures of U2 stem I from human and Saccharomyces cerevisiae. These sequences represent the two major classes of U2 …


Exercise-Mediated Regulation Of Hsp70 Gene Expression Following Exercise Training, C.W. Melling, David Thorp, Kevin Milne, Matthew Krause, Earl Noble Dec 2006

Exercise-Mediated Regulation Of Hsp70 Gene Expression Following Exercise Training, C.W. Melling, David Thorp, Kevin Milne, Matthew Krause, Earl Noble

Jamie Melling

An issue central to understanding the biological benefits associated with regular exercise training is to elucidate the intracellular mechanisms governing exercise-conferred cardioprotection. Heat shock proteins (HSPs), most notably the inducible 70-kDa HSP family member Hsp70, are believed to participate in the protection of the myocardium during cardiovascular stress. Following acute exercise, activation of PKA mediates the suppression of an intermediary protein kinase, ERK1/2, which phosphorylates and suppresses the activation of the heat shock transcription factor 1 (HSF1). However, following exercise training, ERK1/2 has been reported to regulate the transcriptional activation of several genes involved in cell growth and proliferation and …


Aterosclerose: Comparando Brasil E Estados Unidos, Paulo A. Lotufo Dec 2006

Aterosclerose: Comparando Brasil E Estados Unidos, Paulo A. Lotufo

Paulo A Lotufo

No abstract provided.


Sunshine And Suicide At The Tropic Of Capricorn, São Paulo, Brazil, 1996–2004, Paulo A. Lotufo Dec 2006

Sunshine And Suicide At The Tropic Of Capricorn, São Paulo, Brazil, 1996–2004, Paulo A. Lotufo

Paulo A Lotufo

Several studies have confi rmed seasonal variation in suicide rates according to hours of sunshine. The suicide pattern was assessed in São Paulo, southeastern Brazil, at the tropic of Capricorn from 1996 to 2004. Poisson regression was employed to estimate parameters of seasonality, as well as to verify associations for each day between daylight duration and suicide. During the nine-year study period, there were 3,984 suicides (76.9% in men; median age=38.7 years old). Seasonal averages of suicides were similar, as were monthly averages. Poisson regression did not reveal any association between suicide rates and hours of sunshine (p=0.45) for both …