Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1111/j.1600-079X.1992.tb00051.x |
SEASONAL-VARIATIONS IN PINEAL 5-METHOXYTRYPTOPHOL (5-ML) CONCENTRATIONS AND IN THE DAILY PATTERN OF PINEAL 5-ML AND MELATONIN IN THE DESERT RODENT JACULUS-ORIENTALIS - EFFECT OF PROLONGED ILLUMINATION DURING THE NIGHT | |
LAKHDARGHAZAL, N; VIVIENROELS, B; PEVET, P | |
通讯作者 | LAKHDARGHAZAL, N |
来源期刊 | JOURNAL OF PINEAL RESEARCH
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ISSN | 0742-3098 |
出版年 | 1992 |
卷号 | 13期号:1页码:28-35 |
英文摘要 | Seasonal variations in daytime pineal 5-methoxytryptophol (5-ML) and in the daily pattern of both pineal 5-ML and melatonin concentrations were measured by radioimmunoassay in male and female jerboas, Jaculus orientalis. Pineal 5-ML content was found to be low in winter and spring and showed a short but marked increase in summer. A clear daily rhythm was present in pineal 5-ML in September, with high concentrations during daytime and low concentrations during nighttime. In May there was a considerable drop in the daytime values and a marked decrease in the amplitude of the rhythm, while in December the daily rhythm completely disappeared. On the contrary, a clear daily rhythm was observed for pineal melatonin in September, December, and May with high values during nighttime and low values during daytime; no differences in the amplitude of the rhythm could be observed. Illumination during early night prevented both the nocturnal decrease of 5-ML and the increase of melatonin in September; in May illumination had no clear effect on 5-ML, while it prevented the normal increase of melatonin. These results suggest a possible desynchronization between the regulation of 5-ML and melatonin synthesis and release, and stress the complexity of the mechanisms involved in the environmental synchronization of seasonal functions. |
英文关键词 | PINEAL GLAND JERBOA A DESERT HIBERNATORY RODENT 5-METHOXYTRYPTOPHOL MELATONIN SEASONAL VARIATIONS DAY-NIGHT RHYTHMS ILLUMINATION |
类型 | Article |
语种 | 英语 |
国家 | MOROCCO |
收录类别 | SCI-E |
WOS记录号 | WOS:A1992JQ42000005 |
WOS关键词 | N-ACETYLTRANSFERASE ACTIVITY ; DIFFERENT LIGHT IRRADIANCES ; DIFFERENT PHOTOPERIODS ; SYRIAN-HAMSTER ; DARK CYCLES ; COTTON RAT ; GLAND ; RETINA ; SEROTONIN ; RHYTHMS |
WOS类目 | Endocrinology & Metabolism ; Neurosciences ; Physiology |
WOS研究方向 | Endocrinology & Metabolism ; Neurosciences & Neurology ; Physiology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/127949 |
作者单位 | (1)UNIV MOHAMMED 5,FAC SCI,UNITE NEUROSCI,RABAT,MOROCCO |
推荐引用方式 GB/T 7714 | LAKHDARGHAZAL, N,VIVIENROELS, B,PEVET, P. SEASONAL-VARIATIONS IN PINEAL 5-METHOXYTRYPTOPHOL (5-ML) CONCENTRATIONS AND IN THE DAILY PATTERN OF PINEAL 5-ML AND MELATONIN IN THE DESERT RODENT JACULUS-ORIENTALIS - EFFECT OF PROLONGED ILLUMINATION DURING THE NIGHT[J],1992,13(1):28-35. |
APA | LAKHDARGHAZAL, N,VIVIENROELS, B,&PEVET, P.(1992).SEASONAL-VARIATIONS IN PINEAL 5-METHOXYTRYPTOPHOL (5-ML) CONCENTRATIONS AND IN THE DAILY PATTERN OF PINEAL 5-ML AND MELATONIN IN THE DESERT RODENT JACULUS-ORIENTALIS - EFFECT OF PROLONGED ILLUMINATION DURING THE NIGHT.JOURNAL OF PINEAL RESEARCH,13(1),28-35. |
MLA | LAKHDARGHAZAL, N,et al."SEASONAL-VARIATIONS IN PINEAL 5-METHOXYTRYPTOPHOL (5-ML) CONCENTRATIONS AND IN THE DAILY PATTERN OF PINEAL 5-ML AND MELATONIN IN THE DESERT RODENT JACULUS-ORIENTALIS - EFFECT OF PROLONGED ILLUMINATION DURING THE NIGHT".JOURNAL OF PINEAL RESEARCH 13.1(1992):28-35. |
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