Seasonal changes in ultrastructure of brown adipose tissue in the common shrew (Sorex araneus L.)

1981 ◽  
Vol 214 (3) ◽  
pp. 623-632 ◽  
Author(s):  
Aleksandra Przełecka
Keyword(s):  
Adipose Tissue ◽  
Brown Adipose Tissue ◽  
Seasonal Changes ◽  
Common Shrew ◽  
Sorex Araneus ◽  
Brown Adipose ◽  
The Common ◽  
Common Shrew Sorex Araneus

Seasonal Changes in the Brain-case of the Common Shrew (Sorex araneus L.)

Nature ◽  
1959 ◽  
Vol 183 (4665) ◽  
pp. 907-908 ◽  
Author(s):  
PETER CROWCROFT ◽  
JEAN M. INGLES
Keyword(s):  
Seasonal Changes ◽  
Common Shrew ◽  
Sorex Araneus ◽  
The Common ◽  
Common Shrew Sorex Araneus ◽  
The Brain

Seasonality of Leptin Levels in the BAT of the Common Shrew (Sorex araneus)

2000 ◽  
Vol 55 (5-6) ◽  
pp. 455-460 ◽  
Author(s):  
Petteri Nieminen ◽  
Heikki Hyvärinen
Keyword(s):  
Common Shrew ◽  
Sorex Araneus ◽  
Detectable Amount ◽  
Nonshivering Thermogenesis ◽  
Interscapular Brown Adipose Tissue ◽  
Brown Adipose ◽  
Different Seasons ◽  
The Central Nervous System ◽  
The Common ◽  
Common Shrew Sorex Araneus

Leptin concentrations in the interscapular brown adipose tissue (IBAT) of the common shrew (Sorex araneus) were measured in different seasons. The leptin concentrations in IBAT were much higher than in the liver, where leptin is supposed to be of blood origin. In the heart muscle no detectable amount of leptin was found. There were clear seasonal variations in the leptin concentrations in IBAT. Leptin levels in IBAT were the lowest in November at the beginning of the winter. The concentrations increased, however, strongly after the onset of the permanent snow cover, and the highest concentrations were measured in December- January, when the weight of the animals was very low. In April-May, at the time when shrews attain sexual maturity, leptin concentrations in IBAT were lower than in the mid-winter, but significantly higher than in November. In overwintered adults the leptin concentrations were at the same level as in nonwintered subadults. Leptin originating from BAT may inform the central nervous system about the amount of nonshivering thermogenesis as well as the amount of feeding necessary for survival in the winter months.

scholarly journals Reproduction in the common shrew ( Sorex araneus Linnæus ). II—Seasonal changes in the reproductive organs of the male

1935 ◽  
Vol 225 (518) ◽  
pp. 51-62 ◽  
Keyword(s):  
Breeding Season ◽  
Seasonal Changes ◽  
Common Shrew ◽  
Reproductive Organs ◽  
Sorex Araneus ◽  
The Body ◽  
Body Weights ◽  
The Common ◽  
Common Shrew Sorex Araneus ◽  
Male Reproductive Organs

The male Common Shrews obtained at the same time and in the same way as the females provide material which throws further light on the duration of life and of the breeding season in this species. This paper deals with the body-weights, weights of the reproductive organs and the occurrence of spermatozoa in the testes. The duration of fertility in the male and in the female are compared. The anatomy of the male reproductive organs is described by Ärnbäck-Christie-Linde (1907) and requires only brief consideration here.

Altitudinal partitioning of two chromosome races of the common shrew (Sorex araneus) in West Siberia

Mammalia ◽  
2003 ◽  
Vol 67 (2) ◽  
Author(s):  
A.V. POLYAKOV ◽  
V.T. VOLOBOUEV ◽  
V.M. ANISKIN ◽  
J. ZIMA ◽  
J.B. SEARLE ◽  
...  
Keyword(s):  
Common Shrew ◽  
West Siberia ◽  
Sorex Araneus ◽  
Chromosome Races ◽  
The Common ◽  
Common Shrew Sorex Araneus
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