Morphological Adaptation of Rat  Skeletal Muscle to A Cold Environment

Fatime GEYİKOĞLU

Article Details

Morphological Adaptation of Rat Skeletal Muscle to A Cold Environment

Authors:

Fatime GEYİKOĞLU

Publisher:

TUBITAK

Journal:

Turkish Journal of Veterinary and Animal Sciences 2002 Vol.26 Issue 5, pp.1121-1126

Document Type:

Article

Publication Date:

4/2002

Document Language:

Turkish

Document ID (Org No.):

2000770530

Frequency:

Bimonthly

eISSN:

1303-6181

pISSN:

1300-0128

Keywords:

Abstract:

 

Male Sprague-Dawley rats (SD) were kept in medium between the postnatal 80th and 130th day while environmental temperature (from 20 to 5 ºC) and photoperiod were decreased gradually. The weight of the animals adapted to the cold and the weight and length of the external digitorum longus (EDL) muscle were measured. When compared with controls, in a cold environment the weight and fiber length of the muscle was reduced significantly. In addition, EDL muscle was separated into two (red and white) by using the succinic dehydrogenase (SDH) method and the percentage of fiber types and fiber diameters according to mitochondria contents were measured. Transformations in muscle fibers (from Type IIb to Type IIa), decreases in fiber diameters (particularly Type IIb) and atrophic fibers  (in Type IIa and Type IIb) were observed. However, normal values were obtained when the temperature returned to normal.

 

Male Sprague-Dawley rats (SD) were kept in medium between the postnatal 80th and 130th day while environmental temperature (from 20 to 5 ºC) and photoperiod were decreased gradually. The weight of the animals adapted to the cold and the weight and length of the external digitorum longus (EDL) muscle were measured. When compared with controls, in a cold environment the weight and fiber length of the muscle was reduced significantly. In addition, EDL muscle was separated into two (red and white) by using the succinic dehydrogenase (SDH) method and the percentage of fiber types and fiber diameters according to mitochondria contents were measured. Transformations in muscle fibers (from Type IIb to Type IIa), decreases in fiber diameters (particularly Type IIb) and atrophic fibers  (in Type IIa and Type IIb) were observed. However, normal values were obtained when the temperature returned to normal.

Article Details

Morphological Adaptation of Rat Skeletal Muscle to A Cold Environment

Authors:

Fatime GEYİKOĞLU

Publisher:

TUBITAK

Journal:

Turkish Journal of Veterinary and Animal Sciences 2002 Vol.26 Issue 5, pp.1121-1126

Document Type:

Article

Publication Date:

4/2002

Document Language:

Turkish

Document ID (Org No.):

2000770530

Frequency:

Bimonthly

eISSN:

1303-6181

pISSN:

1300-0128

Cold environment

Muscle

Mitochondria

SDH

Histochemistry

Rat

Issues

Article Details

Morphological Adaptation of Rat Skeletal Muscle to A Cold Environment

Authors: Fatime GEYİKOĞLU

Publisher: TUBITAK

Journal: Turkish Journal of Veterinary and Animal Sciences 2002 Vol.26 Issue 5, pp.1121-1126

Document Type: Article

Publication Date: 4/2002

Document Language: Turkish

Document ID (Org No.): 2000770530

Frequency: Bimonthly

eISSN: 1303-6181

pISSN: 1300-0128

Cold environment

Muscle

Mitochondria

SDH

Histochemistry

Rat

Issues

Authors:

Fatime GEYİKOĞLU

Publisher:

TUBITAK

Journal:

Turkish Journal of Veterinary and Animal Sciences 2002 Vol.26 Issue 5, pp.1121-1126

Document Type:

Article

Publication Date:

4/2002

Document Language:

Turkish

Document ID (Org No.):

2000770530

Frequency:

Bimonthly

eISSN:

1303-6181

pISSN:

1300-0128