Document Detail


Synthesis of catecholamines in the hypothalamus and brainstem in one-kidney, one clip and two-kidney, one clip hypertension in rabbits.
MedLine Citation:
PMID:  2902133     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In order to examine the role of central catecholaminergic neurons in hypertension, the activity of tyrosine hydroxylase (TH), the rate-limiting enzyme in the synthesis of catecholamines, was studied in the hypothalamus, midbrain, pons-upper medulla, mid-medulla and lower medulla of one-kidney, one clip (1-K,1C) and two-kidney, one clip (2-K,1C) hypertensive rabbits and their respective operated controls (1-K,1 Cc and 2-K,1 Cc). Comparing the 1-K,1 C group to the 1-K, 1 Cc group, the activity of TH was increased by 79% in the hypothalamus (P less than 0.02), 37% in the mid-medulla region (P less than 0.02) and was unchanged in the midbrain, pons-upper medulla and the lower medulla. Comparing the 2-K,1 C group to the 2-K,1 Cc group, the activity of TH was increased by 89% in the mid-medulla (P less than 0.01), decreased by 36% in the pons-upper medulla (P less than 0.01) and unchanged in the hypothalamus, midbrain and lower medulla. These results indicate that similarities and differences exist in the contribution of central catecholaminergic neurons to the pathophysiology of 1-K,1 C and 2-K,1 C hypertension in rabbits.
Authors:
A L Rauch; W G Campbell
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of hypertension     Volume:  6     ISSN:  0263-6352     ISO Abbreviation:  J. Hypertens.     Publication Date:  1988 Jul 
Date Detail:
Created Date:  1988-11-03     Completed Date:  1988-11-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8306882     Medline TA:  J Hypertens     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  537-41     Citation Subset:  IM    
Affiliation:
Department of Pathology, Emory University, Atlanta, Georgia.
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MeSH Terms
Descriptor/Qualifier:
Animals
Brain Stem / metabolism*
Catecholamines / biosynthesis*
Hypertension, Renovascular / metabolism*
Hypothalamus / metabolism*
Male
Neurons / metabolism
Rabbits
Tyrosine 3-Monooxygenase / metabolism*
Chemical
Reg. No./Substance:
0/Catecholamines; EC 1.14.16.2/Tyrosine 3-Monooxygenase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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