Liquorkontaktneurone im Nucleus paraventricularis

1970 ◽  
Vol 103 (4) ◽  
pp. 483-501 ◽  
Author(s):  
I. Vigh-Teichmann ◽  
B. Vigh ◽  
S. Korits�nszky
Keyword(s):  
Nucleus Paraventricularis

Estrogen reduces vascular endothelial growth factor164 expression in the mouse nucleus paraventricularis of the hypothalamus

2002 ◽  
Vol 333 (3) ◽  
pp. 199-202 ◽  
Author(s):  
R.M. Sibug ◽  
F.M. Helmerhorst ◽  
A.M.I. Tijssen ◽  
E.R. de Kloet ◽  
J. de Koning
Keyword(s):  
Vascular Endothelial ◽  
Nucleus Paraventricularis

Distribution of dopamine D1 receptors in the nucleus paraventricularis of the hypothalamus in rats: an immunohistochemical study

2000 ◽  
Vol 85 (1-2) ◽  
pp. 209-217 ◽  
Author(s):  
Anna Czyrak ◽  
Agnieszka Chocyk ◽  
Marzena Maćkowiak ◽  
Katarzyna Fijał ◽  
Krzysztof Wȩdzony
Keyword(s):  
Immunohistochemical Study ◽  
D1 Receptors ◽  
Dopamine D1 Receptors ◽  
Nucleus Paraventricularis

Distribution and variation of neuropeptide Y in the brain of native Thai chicken

2020 ◽  
pp. 175815592096899
Author(s):  
Natagarn Sartsoongnoen ◽  
Boonyarit Kamkrathok ◽  
Taweesak Songserm ◽  
Yupaporn Chaiseha
Keyword(s):  
Body Weight ◽  
Food Intake ◽  
Neuropeptide Y ◽  
Reproductive Cycle ◽  
Food Restriction ◽  
Egg Laying ◽  
Tropical Species ◽  
Seasonal Breeding ◽  
Nucleus Paraventricularis ◽  
The Brain

Neuropeptide Y (NPY) plays a pivotal role in food intake and body weight regulation in both birds and mammals. Unlike imported broilers and layers, native Thai chicken, a tropical non-seasonal breeding species, has lower body weight and exhibits strongly maternal behaviors which, in turn, affect feeding behavior during the reproductive cycle. The aim of this study was to investigate the role(s) of NPY that might be associated with the reproductive cycle of female native Thai chickens using immunohistochemistry technique. The distributions of NPY-immunoreactive (-ir) neurons and fibers in the brain of laying and fasted chickens was also elucidated. Changes in body weight and number of NPY-ir neurons in the nucleus paraventricularis magnocellularis (PVN) were compared across reproductive stages. The results revealed that NPY-ir neurons and fibers were distributed throughout the brain with the greatest density located in the PVN. Differences in the number of NPY-ir neurons in the PVN were found across reproductive stages. The numbers were lowest in non-egg laying and egg laying stages and significantly higher during egg-incubating and chick-rearing stages. Changes in body weight were inversely related to the number of NPY-ir neurons across reproductive stages. In addition, food restriction caused an increase in NPY immunoreactivity, confirming the role of NPY in response to food restriction. Taken together, the present findings suggest that the NPYergic system in the PVN plays an important role in the regulation of food intake during the reproductive cycle in this non-seasonal breeding tropical species.

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