Plasma fatty acids, prostaglandin F2alpha metabolite, and reproductive response in postpartum heifers fed rumen bypass fat.

2000 ◽  
Vol 78 (1) ◽  
pp. 139 ◽  
Author(s):  
S J Filley ◽  
H A Turner ◽  
F Stormshak
Author(s):  
Sara C. Di Rienzi ◽  
Elizabeth L. Johnson ◽  
Jillian L. Waters ◽  
Elizabeth A. Kennedy ◽  
Juliet Jacobson ◽  
...  

1999 ◽  
Vol 276 (5) ◽  
pp. R1425-R1433 ◽  
Author(s):  
Gertjan van Dijk ◽  
Randy J. Seeley ◽  
Todd E. Thiele ◽  
Mark I. Friedman ◽  
Hong Ji ◽  
...  

To investigate whether brain leptin involves neuropeptidergic pathways influencing ingestion, metabolism, and gastrointestinal functioning, leptin (3.5 μg) was infused daily into the third cerebral ventricular of rats for 3 days. To distinguish between direct leptin effects and those secondary to leptin-induced anorexia, we studied vehicle-infused rats with food available ad libitum and those that were pair-fed to leptin-treated animals. Although body weight was comparably reduced (−8%) and plasma glycerol was comparably increased (142 and 17%, respectively) in leptin-treated and pair-fed animals relative to controls, increases in plasma fatty acids and ketones were only detected (132 and 234%, respectively) in pair-fed rats. Resting energy expenditure (−15%) and gastrointestinal fill (−50%) were reduced by pair-feeding relative to the ad libitum group, but they were not reduced by leptin treatment. Relative to controls, leptin increased hypothalamic mRNA for corticotropin-releasing hormone (CRH; 61%) and for proopiomelanocortin (POMC; 31%) but did not reduce mRNA for neuropeptide Y. These results suggest that CNS leptin prevents metabolic/gastrointestinal responses to caloric restriction by activating hypothalamic CRH- and POMC-containing pathways and raise the possibility that these peripheral responses to CNS leptin administration contribute to leptin’s anorexigenic action.


Nutrition ◽  
2021 ◽  
pp. 111411
Author(s):  
Aline Ramos de Araújo ◽  
Geni Rodrigues Sampaio ◽  
Lucas Ribeiro da Silva ◽  
Vera Lúcia Portal ◽  
Melissa Medeiros Markoski ◽  
...  

Kidney ◽  
2010 ◽  
Vol 19 (6) ◽  
pp. 316-323 ◽  
Author(s):  
Manal Fuad Elshamaa ◽  
Samar Mohamed Sabry ◽  
Eman Ahmed Elghoroury ◽  
Gamila Soliman El-Saaid ◽  
Dina Kandil

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