Results 161 to 170 of about 227,315 (399)

The direct response of the gonads to cues of stress in a temperate songbird species is season-dependent. [PDF]

, 2013
The gonadotropin releasing hormone (GnRH) system in the hypothalamus is often considered the final point in integration of environmental cues as they pertain to the reproductive axis.
Bentley, George, Koh, Annie, McGuire, Nicolette   +2 more
core   +2 more sources

Exogenous Melatonin Enhances Cold, Salt and Drought Stress Tolerance by Improving Antioxidant Defense in Tea Plant (Camellia sinensis (L.) O. Kuntze)

Molecules, 2019
Melatonin is a biological hormone that plays crucial roles in stress tolerance. In this study, we investigated the effect of exogenous melatonin on abiotic stress in the tea plant.
Jiahao Li, Yiqing Yang, K. Sun, Yi Chen, Xuan Chen, Xinghui Li   +5 more
semanticscholar   +1 more source

Melatonin-Induced Testicular Growth in Golden Hamsters Maintained on Short Days [PDF]

, 1978
Fred W. Turek, Susan H. Losee
openalex   +1 more source

Vision at high latitudes: High sensitivity without specific boreal adaptations in photoreception in reindeer (Rangifer tarandus L.)

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The light climate at high latitudes, in particular the extended twilight of winter and the reduced diel variation in light level in midsummer and midwinter, potentially constrains visual function and the synchronisation of temporal organisation in polar species. In this
Nicholas J. C. Tyler, Robert A. E. Fosbury, David Hazlerigg, Christopher Hogg   +3 more
wiley   +1 more source

The Effect of Melatonin on Behavioral, Molecular, and Histopathological Changes in Cuprizone Model of Demyelination [PDF]

, 2016
Multiple sclerosis (MS) is an autoimmune, demyelinating disease of the central nervous system. The protective effects of melatonin (MLT) on various neurodegenerative diseases, including MS, have been suggested.
Ghadiri, T., Ghaemi, A., Gorji, A., Khodagholi, F., Noorbakhsh, F., Sharifzadeh, M., Vakilzadeh, G.   +6 more
core  

Light Pollution, Circadian Photoreception, and Melatonin in Vertebrates

Sustainability, 2019
Artificial light at night (ALAN) is increasing exponentially worldwide, accelerated by the transition to new efficient lighting technologies. However, ALAN and resulting light pollution can cause unintended physiological consequences.
M. Grubisic, A. Haim, P. Bhusal, D. Dominoni, Katharina M. A. Gabriel, A. Jechow, Franziska Kupprat, A. Lerner, Paul Marchant, William Riley, K. Stebelová, R. V. van Grunsven, M. Zeman, A. E. Zubidat, F. Hölker   +14 more
semanticscholar   +1 more source

Effect of Melatonin on the Basal and Stimulated Gonadotropin Levels in Normal Men and Postmenopausal Women [PDF]

, 1976
Hugo Fideleff, Néstor J. Aparicio, A Guitelman, Luciano Debéljuk, Antonio Mancini, CARLOS CRAMER   +5 more
openalex   +1 more source

cba‐miR‐222‐3p involved in photoperiod‐induced apoptosis in testes of striped hamsters by targeting TRAF7

Integrative Zoology, EarlyView.
The cba‐miR‐222‐3p affects the MAPK signaling pathway by targeting TRAF7, thereby participating in the induction of apoptosis in the testes of striped hamsters under different photoperiods. Abstract The role of miRNAs in the regulation of seasonal reproduction in rodents, particularly in relation to photoperiod changes, is still poorly understood ...
Shuo WANG, Jinhui XU, Xingchen WANG, Mingdi WANG, Huiliang XUE, Ming WU, Chao FAN, Lei CHEN, Laixiang XU   +8 more
wiley   +1 more source

Light's Impact on Fertility: Unveiling the Maybe Connection Between Nighttime Illumination and Global Societal Changes [PDF]

arXiv
Chinese people are talking about a national birth rate of 6.4 per 1,000 people in 2023, the lowest in the world. Whether this is related to the wrong use of various artificial night light rays passing through our eyes is worth reflection. Non-visual effects of light are the effects of the blue component of light, which effectively inhibits the ...
arxiv  

Melatonin inhibits cadmium translocation and enhances plant tolerance by regulating sulfur uptake and assimilation in Solanum lycopersicum L.

Journal of Agricultural and Food Chemistry, 2019
Sulfur (S) metabolism plays a vital role in Cd detoxification, but the collaboration between melatonin biosynthesis and S metabolism under Cd stress remains unaddressed. Using exogenous melatonin, melatonin-deficient tomato plants with a silenced caffeic
M. Hasan, G. Ahammed, Shuchan Sun, Mengqi Li, Hanqin Yin, Jie Zhou   +5 more
semanticscholar   +1 more source