Histopathological changes and oxidative damage in type I and type II muscle fibers in rats undergoing paradoxical sleep deprivation

The acute metabolic response to sprint exercise was studied in 20 male and 19 female students. We hypothesized that the reduction of muscle glycogen content during sprint exercise would be smaller in women than in men and that a possible gender difference in glycogen reduction would be higher in type II than in type I fibers. The exercise-induced increase in blood lactate concentration was 22% smaller in women than in men. A considerable reduction of ATP (50%), phosphocreatine (83%), and glycogen (35%) was found in type II muscle fibers, and it did not differ between the genders. A smaller reduction of ATP (17%) and phosphocreatine (78%) was found in type I fibers, and it did not differ between the genders. However, the exercise-induced reduction in glycogen content in type I fibers was 50% smaller in women than in men. The hypothesis was indeed partly confirmed: the exercise-induced glycogen reduction was attenuated in women compared with men, but the gender difference was in type I rather than in type II fibers. Fiber-type-specific and gender-related differences in the metabolic response to sprint exercise might have implications for the design of training programs for men and women.

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Involvement of dopamine receptors in cocaine-induced genital reflexes after paradoxical sleep deprivation

Behavioural Brain Research ◽

10.1016/j.bbr.2004.11.016 ◽

2005 ◽

Vol 160 (1) ◽

pp. 44-50 ◽

Cited By ~ 8

Author(s):

Monica Levy Andersen ◽

Ligia Assumpção Papale ◽

Débora Cristina Hipólide ◽

José N. Nobrega ◽

Sergio Tufik

Keyword(s):

Sleep Deprivation ◽

Dopamine Receptors ◽

Paradoxical Sleep ◽

Paradoxical Sleep Deprivation

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Paradoxical Sleep Deprivation Aggravates and Prolongs Incision-Induced Pain Hypersensitivity via BDNF Signaling-Mediated Descending Facilitation in Rats

Neurochemical Research ◽

10.1007/s11064-018-2660-2 ◽

2018 ◽

Vol 43 (12) ◽

pp. 2353-2361 ◽

Cited By ~ 4

Author(s):

Jianjun Xue ◽

Huili Li ◽

Ziqing Xu ◽

Danxu Ma ◽

Ruijuan Guo ◽

...

Keyword(s):

Sleep Deprivation ◽

Paradoxical Sleep ◽

Paradoxical Sleep Deprivation ◽

Pain Hypersensitivity ◽

Descending Facilitation ◽

Bdnf Signaling

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Comparative histochemical and morphometric analysis of muscle fibers of the psoas muscle in individuals of both genders with ageing

Vojnosanitetski pregled ◽

10.2298/vsp200713107a ◽

2020 ◽

pp. 107-107

Author(s):

Vladimir Antic ◽

Nenad Stojiljkovic ◽

Milorad Antic

Keyword(s):

Morphometric Analysis ◽

Statistical Significance ◽

Muscle Fibers ◽

Age Groups ◽

Psoas Muscle ◽

Iliopsoas Muscle ◽

Type I ◽

Type Ii ◽

Tissue Samples ◽

The Right

Background/Aim. In this paper, we analyzed type I and type II muscle fibers of the iliopsoas muscle in persons of both genders with ageing. The aim of this study was to detect the presence and distribution of types I and II muscle fibers in the human psoas muscle using the hematoxylin and eosin method in individuals of different ages and genders. Methods. The material consisted of tissue samples of the right iliopsoas muscle taken from 30 adult cadavers (18 males and 12 females), aged from 30 to 90 years, divided into three age groups. The material was obtained from the Institute of Forensic Medicine, Faculty of Medicine University of Nis. Results. The values of astereological parameters (area, perimeter and Feret's diameter) of type I and type II muscle fibers were higher in male cases, although without any statistical significance. Conclusion. Based on the histochemical and morphometric analysis, the conclusion was drawn that after 70 years of life there occurred a loss of type II muscle fibers, more conspicuous in female cases.

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