INFLUENCE OF SEXUAL HORMONES ON OXYGEN CONSUMPTION IN RATS

被引：1

作者：

Conti, Filipe Fernandes ^{[1
]}

Sanches, Iris Callado ^{[1
]}

Bernardes, Nathalia ^{[1
,2
]}

Shimojo, Guilherme Lemos ^{[1
]}

Taboas Figueroa, Diego Mendrot ^{[2
]}

Wichi, Rogerio Brandao ^{[3
]}

De Angelis, Katia ^{[1
]}

机构：

[1] Univ Nove Julho, Lab Fisiol Translac, Sao Paulo, Brazil

[2] Inst Coracao FMUSP, Lab Hipertensao Expt, Sao Paulo, Brazil

[3] Univ Fed Sergipe, Sao Cristovao, SE, Brazil

来源：

REVISTA BRASILEIRA DE MEDICINA DO ESPORTE | 2014年 / 20卷 / 06期

关键词：

oxygen consumption; rats; sex differences; menopause; MENSTRUAL-CYCLE; RISK-FACTORS; VO2MAX; DISEASE;

D O I：

10.1590/1517-86922014200601665

中图分类号：

Q4 [生理学];

学科分类号：

071003 ;

摘要：

Introduction: Literature findings suggest that fluctuations of female sex hormones may change the maximum oxygen consumption (VO2max). Objective: To compare the VO2max among male rats (M, n = 8), female rats on ovulatory (OV, n= 8) or non- ovulatory (NOV, n= 8) phases of the estrous cycle and ovariectomized (OS, n= 8). Methods: The evaluation of oxygen consumption was performed on a treadmill coupled with metabolic box. Results: At rest VO2 was similar among groups. The M group had a higher VO2 max compared to the NOV group, however showed similar values when compared to OV group. The VO2 max was lower in the ovariectomized group (OS: 62 +/- 3 ml.kg(-1).min(-1)) compared to other groups (M:92 +/- 2; NOV: 77 +/- 4; OV: 87 +/- 3 ml.kg(-1).min(-1)). Conclusions: These findings suggest that hormonal variation resulting from different phases of the estrous cycle and ovarian hormone deprivation can induce changes in maximal oxygen uptake in rats.

引用

页码：421 / 423

页数：3

共 31 条

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