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| Content Provider | Springer Nature Link |
|---|---|
| Author | Moorthy, K. Yadav, Umesh C.S. Siddiqui, M.R. Sharma, D. Basir, S.F. Baquer, N.Z. |
| Copyright Year | 2004 |
| Abstract | The aim of this study was to determine the effect of administration of estradiol (E2), progesterone (P4), and combination of estradiol and progesterone (EP) in aging female rats. The changes in the activities of hexokinase (HK), glucose-6-phosphatase (G6P′tase) and glucose-6-phosphate dehydrogenase (G6PDH) enzymes, and in protein levels in tissues of rats namely brain (cerebral hemisphere), heart, liver, kidney and uterus have been measured in different age groups. The random blood sugar level was measured in serum and liver. The different age groups of rats were given 0.1 μg/g body weight estradiol, 2.5 μg/g body weight progesterone and a similar concentration of both in a combined treatment for 1 month. This dose was selected after determining estrogen and progesterone levels in 3 month adult female animals so that the aging female animals had circulating hormone levels nearly the same as those of young female animals. The random sugar level was determined in serum and liver cytosolic fractions, and it was increased by combination treatment. The protein content in tissues showed significant changes only with combined hormone administration when compared with age-matched controls. The activity of HK decreased in aged animals and significantly increased by hormone treatments in all the tissues of the aged rats studied. The activity of G6P′tase increased with age up to 1.5 years and decreased in 2 years. Treatment with E2 and EP further decreased the activity significantly in all the tissues. G6PDH showed a similar pattern as was observed in HK in all the age groups. Therefore, the E2 and EP treatments caused an entire series of growth-related responses, including an increased uptake of glucose, increased the protein level in the tissues of aging rats, thereby reducing the risk factors associated with aging by normalizing hormone levels which decreased with aging and resulted in diseases such as Alzheimer's diseases and diabetes. |
| Starting Page | 249 |
| Ending Page | 259 |
| Page Count | 11 |
| File Format | |
| ISSN | 13895729 |
| Journal | Biogerontology |
| Volume Number | 5 |
| Issue Number | 4 |
| e-ISSN | 15736768 |
| Language | English |
| Publisher | Kluwer Academic Publishers |
| Publisher Date | 2004-01-01 |
| Publisher Place | Dordrecht |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Geriatrics/Gerontology Cell Biology Developmental Biology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Aging Gerontology Geriatrics and Gerontology |
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