排序方式: 共有27条查询结果,搜索用时 156 毫秒
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R Moriggi Jr HS Di Mauro SC Dias JM Matos MB Urtado NF Camar?o IV Sousa Neto DC Nascimento RA Tibana CO Assump??o J Prestes CB Urtado 《Biology of sport / Institute of Sport》2015,32(4):289-294
Low intensity resistance exercise (RE) with blood flow restriction (BFR) has gained attention in the literature due to the beneficial effects on functional and morphological variables, similar to those observed during traditional RE without BFR, while the effects of BFR on post-exercise hypotension remain unclear. The aim of the present study was to compare the blood pressure (BP) response of trained normotensive individuals to RE with and without BFR. In this cross-over randomized trial, eight male subjects (23.8 ± 4 years, 74 ± 3 kg, 174 ± 4 cm) completed two exercise protocols: traditional RE (3 x 10 repetitions at 70% one-repetition maximum [1-RM]) and low intensity RE (3 x 15 repetitions at 20% 1-RM) with BFR. Blood pressure measurements were performed after 15 min of seated rest (0), immediately after and 10 min, 20 min, 30 min, 40 min, 50 min and 60 min after the experimental sessions. Similar hypotensive effects for systolic BP (SBP) were observed for both protocols (P < 0.05) after exercise, with no differences between groups (P > 0.05) and no statistically significant difference for diastolic BP (P > 0.05). These results suggest that in normotensive trained individuals, both traditional RE and RE with BFR induce hypotension for SBP, which is important to prevent cardiovascular disturbances. 相似文献
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Jonkers W VAN Kan JA Tijm P Lee YW Tudzynski P Rep M Michielse CB 《Molecular Plant Pathology》2011,12(6):548-563
Plant‐pathogenic fungi employ a variety of infection strategies; as a result, fungi probably rely on different sets of proteins for successful infection. The F‐box protein Frp1, only present in filamentous fungi belonging to the Sordariomycetes, Leotiomycetes and Dothideomycetes, is required for nonsugar carbon catabolism and pathogenicity in the root‐infecting fungus Fusarium oxysporum. To assess the role of Frp1 in other plant‐pathogenic fungi, FRP1 deletion mutants were generated in Fusarium graminearum and Botrytis cinerea, and their phenotypes were analysed. Deletion of FgFRP1 in F. graminearum led to impaired infection of barley roots, but not of aerial plant parts. Deletion of BcFRP1 in B. cinerea did not show any effect on pathogenicity. Sexual reproduction, however, was impaired in both F. graminearum and B. cinerea FRP1 deletion mutants. The mutants of all three fungi displayed different phenotypes when grown on an array of carbon sources. The F. oxysporum and B. cinerea deletion mutants showed opposite growth phenotypes on sugar and nonsugar carbon sources. Replacement of FoFRP1 in F. oxysporum with the B. cinerea BcFRP1 resulted in the restoration of pathogenicity, but also in a switch from impaired growth on nonsugar carbon sources to impaired growth on sugar carbon sources. This effect could be ascribed in part to the B. cinerea BcFRP1 promoter sequence. In conclusion, the function of the F‐box protein Frp1, despite its high sequence conservation, is not conserved between different fungi, leading to differential requirements for pathogenicity and carbon source utilization. 相似文献
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Although chemotherapy with procarbazine, lomustine and vincristine (PCV) is considered to be well tolerated, side effects
frequently lead to dose reduction or even discontinuation of treatment of oligodendroglial brain tumors. The primary objective
of the analysis was to retrospectively compare progression-free survival (PFS) after PCV vs. PC chemotherapy (without vincristine
to avoid side effects). Patients were retrospectively identified from a database containing our patients between 1990 and
2003. For the selected cases, all histopathology reports were re-evaluated by a local neuropathologist. Based on the updated
histology data, patients were included in the study if they had at least one histological diagnosis of an oligodendroglial
tumor. PFS after start of PCV (n = 61) and PC (n = 84) chemotherapy identical (median 30 months). Multivariate analysis adjusting
for prognostic imbalances favouring the PC group showed a minor, statistically non-significant benefit for PCV (hazard ratio
0.81, 95% confidence interval 0.53–1.25; p = 0.346). Younger age (< 50 y) was a statistically significant predictor of longer
PFS. Significant advantages in terms of overall survival after first diagnosis of oligodendroglial tumor (OS, n = 315) were
found for patients < 50 y (p < 0.001), oligodendrogliomas versus oligoastrocytomas (p = 0.002), and WHO°II vs. °III (p < 0.001).
Three risk groups regarding OS were identified. Findings support the hypothesis that PC may be as effective as PCV chemotherapy,
while avoiding the additonal risks of vincristine. Younger age, lower tumor grade and histology of an oligodendroglioma were
identified to be favorable prognostic factors. 相似文献
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Philipp Wiemann Christian M. K. Sieber Katharina W. von Bargen Lena Studt Eva-Maria Niehaus Jose J. Espino Kathleen Hu? Caroline B. Michielse Sabine Albermann Dominik Wagner Sonja V. Bergner Lanelle R. Connolly Andreas Fischer Gunter Reuter Karin Kleigrewe Till Bald Brenda D. Wingfield Ron Ophir Stanley Freeman Michael Hippler Kristina M. Smith Daren W. Brown Robert H. Proctor Martin Münsterk?tter Michael Freitag Hans-Ulrich Humpf Ulrich Güldener Bettina Tudzynski 《PLoS pathogens》2013,9(6)
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Natália H Mendes Fernando AF Melo Adolfo CB Santos José RC Pandolfi Elisabete A Almeida Rosilene F Cardoso Henri Berghs Suzana David Faber K Johansen Lívia G Espanha Sergio RA Leite Clarice QF Leite 《BMC research notes》2011,4(1):269