Document Detail


Zinc coadministration attenuates melatonin's effect on nitric oxide production in mice.
MedLine Citation:
PMID:  10468163     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Both melatonin (MEL) and zinc (Zn) are considered beneficial for anti-immunosenescence. MEL's effects on immune functions are partly attributed to an interaction with Zn. However, the augmentation of or interference with MEL's effects by coadministration of Zn remains unclear. In this study, adult older mice received either MEL (10 microg/mL), Zn (22 microg/mL), MEL+Zn, or null supplementation from drinking water for 3 mo. The results showed that treated mice, irrespective of the type of added chemicals, had higher body-weight gain and body-fat content than control mice. MEL- and Zn-treated mice also had increased serum free fatty acid levels. In addition, the MEL group had decreased serum NOx (nitrite+nitrate) values. Serum tumor necrosis factor-alpha levels were increased, although nonsignificantly, in mice that received either MEL or Zn supplementation. However, the differences described were not retained in the mice that received MEL+Zn treatment. We conclude that a high-dose Zn coadministration might exert negative influences on MEL's regulatory effects, at least on nitric oxide production.
Authors:
M D Chen; P Y Lin; W H Sheu
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Biological trace element research     Volume:  69     ISSN:  0163-4984     ISO Abbreviation:  Biol Trace Elem Res     Publication Date:  1999 Sep 
Date Detail:
Created Date:  1999-09-30     Completed Date:  1999-09-30     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7911509     Medline TA:  Biol Trace Elem Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  261-8     Citation Subset:  IM    
Affiliation:
Department of Internal Medicine, Taichung Veterans General Hospital, Republic of China.
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue / drug effects
Animals
Blood Glucose / metabolism
Body Weight / drug effects
Fatty Acids, Nonesterified / blood
Male
Melatonin / administration & dosage,  pharmacology*
Mice
Mice, Inbred C57BL
Nitric Oxide / biosynthesis*,  blood
Triglycerides / blood
Tumor Necrosis Factor-alpha / metabolism
Zinc / administration & dosage,  blood,  pharmacology*,  urine
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Fatty Acids, Nonesterified; 0/Triglycerides; 0/Tumor Necrosis Factor-alpha; 10102-43-9/Nitric Oxide; 73-31-4/Melatonin; 7440-66-6/Zinc

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


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