» Articles » PMID: 2446157

Effect of Aging on Monoamines and Their Metabolites in the Rat Brain

Overview
Journal Neurochem Res
Specialties Chemistry
Neurology
Date 1987 Nov 1
PMID 2446157
Citations 8
Authors
Affiliations
Soon will be listed here.
Abstract

Concentrations of dopamine (DA), norepinephrine (NE), serotonin (5-HT) and their acid metabolites were assayed in specific brain areas of Wistar rats of various ages. DA and its metabolite 3,4-dihydroxyphenylacetic acid (DOPAC) were significantly lower in striatum and mesolimbic areas of old (24 mos) rats than young adult (3 mos), but not mature (12 mos) rats. The decrease of homovanillic acid (HVA) was significant in mesolimbic areas but not in striatum. Neither cortical NE nor its metabolite methoxyhydroxyphenylglycol sulphate (MHPG-SO4) were significantly changed by aging. 5-HT and 5-hydroxyindoleacetic acid (5-HIAA) in the brainstem showed a tendency to a decrease and increase respectively in aged animals compared with young adults, but the differences were not statistically significant. However, the ratio of 5-HIAA to 5-HT concentrations was significantly higher in aged animals. The conclusion can be drawn that, in these brain areas, DA is more vulnerable to aging than NE and 5-HT, the metabolism of the latter being even enhanced.

Citing Articles

Substantial decline of phasic dopamine signaling in senescent male rats does not impact dopamine-dependent Pavlovian conditioning.

Sandberg S, Sanford C, Phillips P bioRxiv. 2024; .

PMID: 38187581 PMC: 10769384. DOI: 10.1101/2023.12.21.572806.


Neuro-Cognitive Effects of Acute Tyrosine Administration on Reactive and Proactive Response Inhibition in Healthy Older Adults.

Bloemendaal M, Frobose M, Wegman J, Zandbelt B, van de Rest O, Cools R eNeuro. 2018; 5(2).

PMID: 30094335 PMC: 6084775. DOI: 10.1523/ENEURO.0035-17.2018.


Brain regional alpha-[11C]methyl-L-tryptophan trapping, used as an index of 5-HT synthesis, in healthy adults: absence of an age effect.

Rosa-Neto P, Benkelfat C, Sakai Y, Leyton M, Morais J, Diksic M Eur J Nucl Med Mol Imaging. 2007; 34(8):1254-64.

PMID: 17318550 DOI: 10.1007/s00259-007-0365-x.


Age-related decline of brain monoamines in mice is reversed to young level by Japanese herbal medicine.

Tsunemi A, Utsuyama M, Seidler B, Kobayashi S, Hirokawa K Neurochem Res. 2005; 30(1):75-81.

PMID: 15756935 DOI: 10.1007/s11064-004-9688-1.


Age-dependent changes in 24-hour rhythms of catecholamine content and turnover in hypothalamus, corpus striatum and pituitary gland of rats injected with Freund's adjuvant.

Cano P, Cardinali D, Chacon F, Castrillon P, Reyes Toso C, Esquifino A BMC Physiol. 2001; 1:14.

PMID: 11741510 PMC: 61031. DOI: 10.1186/1472-6793-1-14.


References
1.
Miller A, Shaar C, Riegle G . Aging effects on hypothalamic dopamine and norepinephrine content in the male rat. Exp Aging Res. 1976; 2(5):475-80. DOI: 10.1080/03610737608258005. View

2.
Samorajski T . Central neurotransmitter substances and aging: a review. J Am Geriatr Soc. 1977; 25(8):337-48. DOI: 10.1111/j.1532-5415.1977.tb00657.x. View

3.
Carlsson A, Winblad B . Influence of age and time interval between death and autopsy on dopamine and 3-methoxytyramine levels in human basal ganglia. J Neural Transm. 1976; 38(3-4):271-6. DOI: 10.1007/BF01249444. View

4.
Demarest K, Riegle G, Moore K . Characteristics of dopaminergic neurons in the aged male rat. Neuroendocrinology. 1980; 31(3):222-7. DOI: 10.1159/000123078. View

5.
MAKMAN M, Ahn H, Thal L, Sharpless N, Dvorkin B, Horowitz S . Evidence for selective loss of brain dopamine- and histamine-stimulated adenylate cyclase activities in rabbits with aging. Brain Res. 1980; 192(1):177-83. DOI: 10.1016/0006-8993(80)91017-3. View