Seasonal variations of androgens and of several sexual parameters in male Meriones shawi in southern Morocco

Zaime, Abdelkader; Laraki, M; Gautier, Jean-Yves; Garnier, Danielle Hélène

doi:10.1016/0016-6480(92)90113-x

Cited by 11 publications

(4 citation statements)

References 6 publications

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“…Both Sertoli or cells of Leydig and interstitial cells are temperature sensitive cells. Seasonal variations in physical factors stimulate gonads that induce secretion of male hormones, testosterone and androgen (Zaime et al, 1992). Both are steroid hormones which also regulate secondary sexual characters at puberty.…”

Section: Effect Of Seasonal Climatic Variations On Endocrine Homeostasismentioning

confidence: 99%

Markers for Global Climate Change and Its Impact on Social, Biological and Ecological Systems: A Review

Upadhyay¹

2020

AJCC

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Present article sketches out major climate induced changes in marine, aquatic and terrestrial life. Few important biomarkers such as ecological, meteorological, socioeconomic, thermal, biophysical and biological, behavioral markers of climate change and global environmental stress have been highlighted to predict the future challenges and finding appropriate solutions. Though, so many climate change induced effects are visible but few unpredictable effects may be seen in future. Therefore, all such effects have been acknowledged, and tried to find appropriate solutions. Most visible effect is collection of high amounts of carbon dioxide in the atmosphere which is responsible for green house effect and causing natural calamities round the globe. It is not only jeopardized the survival of terrestrial, fresh water animals mainly planktons, bottom dwellers; coral reefs, algae, fish fauna in marine environment belong to different taxon but also responsible for disruption of ocean's food web due to non-assimilation of extra carbon dioxide by the ocean water. There is a sharp decline in fresh water and sea shore micro-flora and micro-fauna. Other major visible effects are loss of biodiversity, depletion of forests, land degradation, severe floods and draughts. On other hand sudden changes in weather conditions causing irreparable devastations due to hurricanes and typhoons, storms, lightening, earthquakes and tsunamis are normally on rise. Both economic and ecological breakdowns are occurring more frequently which are more impactful and persistent. Climate change is major human health stressor; it is making fragmentation of socio-cultural bonds and reducing fertility of soil finally crop production. Climate change is imposing nonadaptive forced human migration, territorial conflicts, decreasing ecosystem productivity, disease out breaks, and impelling unequal resource utilization.

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Section: Effect Of Seasonal Climatic Variations On Endocrine Homeostasismentioning

confidence: 99%

Markers for Global Climate Change and Its Impact on Social, Biological and Ecological Systems: A Review

Upadhyay¹

2020

AJCC

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“…For example, in the male gerbil (Meriones shawi) of the Saharan Desert, there are several distinct phases of reproductive activity: testicular and seminal vesicular weights change bimodally during the year in concert with increased plasma androgen and spermatogenesis. The cue for increased testicular and reproductive activities involves the spasmodic appearance of rain in their arid environment (944).…”

Section: Reproductionmentioning

confidence: 99%

Endocrinology of the Vertebrates

Henderson

1997

Comprehensive Physiology

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“…Indeed, during the active period, the reproductive organs show considerable growth in weight; structure and ultrastructure are developed and both testicular and plasma testosterone levels increase. The nonbreeding season is typically characterized by a reduction in the size of reproductive organs (seminal vesicle and prostate) induced by a marked reduction in the testicular size and the plasma testosterone level [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Testicular Lhcgr mRNA Expression Correlated with Testis and Seminal Vesicle Activities in the Libyan jird (Meriones libycus, Rodentia: Muridae) during Breeding Season Compared with Nonbreeding Season

Boufermes

Belhocine

Amirat

et al. 2021

Animals

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The Libyan jird (Meriones libycus, 1823) is a wild desert rodent that is a seasonal breeder species adapted to breed when the environmental conditions can satisfy the energy and hydrous requirements of pregnant and nursing females to ensure that births occur at the most favorable time of the year. We assessed gene expression of testicular luteinizing hormone receptor (Lhcgr) correlated to testis activity. The expression of Lhcgr was evaluated using quantitative Real Time-Polymerase Chain Reaction (qRT-PCR and the testis activity by a histological method in adult male Libyan jirds during the nonbreeding and breeding seasons. Our results showed that Lhcgr mRNA expression increased in autumn during the nonbreeding season and decreased in spring during the breeding season. This expression varied in contrast to testicular structure or function and plasma testosterone levels. These results help to elucidate this desert rodent’s seasonal sexual activity, which is correlated with central regulation.

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Seasonal variations of androgens and of several sexual parameters in male Meriones shawi in southern Morocco

Cited by 11 publications

References 6 publications

Markers for Global Climate Change and Its Impact on Social, Biological and Ecological Systems: A Review

Markers for Global Climate Change and Its Impact on Social, Biological and Ecological Systems: A Review

Endocrinology of the Vertebrates

Assessment of Testicular Lhcgr mRNA Expression Correlated with Testis and Seminal Vesicle Activities in the Libyan jird (Meriones libycus, Rodentia: Muridae) during Breeding Season Compared with Nonbreeding Season

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