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| 1 | Monochromatic green light stimulation during incubation shortened the hatching time via pineal function in White Leghorn eggs显示文摘Background:Effect of monochromatic green light illumination on embryo development has been reported in chickens.The avian pineal gland is an important photo-endocrine organ formed by a mediodorsal protrusion during embryonic development.However,the involvement of pineal gland in the light transduction process remains to be elucidated.In the present study,we investigated the influence of monochromatic green light on hatching time and explored the possible mechanism via pineal function.Results:A total of 600 eggs of White Leghorn(Shaver strain)were incubated under photoperiods of either 12 h of light and 12 h of darkness using monochromatic green light(12L:12D group)or 24 h of darkness(0L:24D group)for 18 d.Compared to 0L:24D group,the green light stimulation shortened the hatching time without extending the hatch window or impairing hatchability.The liver of embryos incubated in the 12L:12D light condition was heavier than those of the 0L:24D group on d 21 post incubation which may be linked to the observed increase in the serum concentration of insulin-like growth factor 1(IGF-1);primary secretion of the liver.Histological structure analysis of pineal gland demonstrated that the light stimulation increased follicle area,wall thickness and lumen area on d 10 and d 12 post incubation.Rhythmic function analysis demonstrated that three clock related genes(brain and muscle ARNT-like-1,BMAL1;circadian locomotor output cycles kaput,CLOCK;and cryptochrome-1,CRY1)and a melatonin rate-limiting enzyme related gene(arylalkylamine N-acetyltransferase,AANAT)were rhythmically expressed in the pineal gland of the 12L:12D group,but not in the 0L:24D group.Simultaneously,the light stimulation also increased the concentration of melatonin(MT),which was linked to hepatocyte proliferation and IGF-1 secretion in previous studies.Conclusions:The 12L:12D monochromatic green light stimulation during incubation shortened hatching time without impairing hatching performance.Pineal gland’s early histological development and maturation of its rhythmic function were accelerated by the light stimulation.It may be the key organ in the photo-endocrine axis that regulates embryo development,and the potential mechanism could be through enhanced secretion of MT in the 12L:12D group which promotes the secretion of IGF-1. | Panlin Wang Yanyan Sun Yunlei Li Jing Fan Yunhe Zong Adamu Mani Isa Lei Shi Yuanmei Wang Aixin Ni Pingzhuang Ge Linlin Jiang Shixiong Bian Hui Ma Zhengdong Yuan Xiaolin Liu Jilan Chen | 2021 | Journal of Animal Science and Biotechnology2021，12，3： | 3 |
| 2 | Effect of the neuropeptide substance P on the rat bone marrow -derived osteogenic cells in vitro显示文摘 | Adamus MA Dabrowski ZJ | 2001 | J Cell Biochem2001，81，3： | 1 |
| 3 | Incidence of chronic atrophic gastritis:systematic review and meta-analysis of follow-up studies显示文摘 | Adamu MA Weck MN Gao L | 2010 | Eur J Epidemiol2010，25，7： | 1 |
| 4 | Helicobacter pylori infection is strongly associated with gastric and duodenal ulcers in a large prospective study显示文摘 | Schottker B Adamu MA Weck MN | 2012 | Clin Gastroenterol Hepatol2012，10，5： | 1 |
| 5 | Incidence and risk factors for the development of chronic atrophic gastritis: Five year follow-up of a population-based cohort study显示文摘 | Adamu MA Weck MN Rothenbacher D | 2011 | International Journal of Cancer2011，128，7： | 1 |
| 6 | Helicobacter py- lori infection, chronic atrophic gastritis and major cardiovas- cular events: apopulation-based cohort study显示文摘 | Sch6ttker B Adamu MA Weck MN | 2012 | Atheroscle- rosis2012，220，2： | 1 |
| 7 | Incidence and risk factors for the development of chronic atrophic gastritis:five year follow-up of a population-based cohort study显示文摘 | Adamu MA Weck MN Rothenbacher D | | 0，，07： | 1 |
| 8 | Helicobacter pylori infection,chronic atrophic gastritis and major car- diovascular events: a population-based cohort study 显示文摘 | Schottker B Adamu MA Weck MN et ai | 2012 | Atherosclerosis2012，220，2： | 1 |
| 9 | Incidence of chronic atrophic gastritis:systematic review and meta-analysis of follow-up studies显示文摘 | Adamu MA Weck MN Gao L | 2010 | Eur JEpidemiol2010，25，7： | 1 |
| 10 | Incidence and risk factors for the development of chronic atrophic gastritis: five year follow-up of a population-based cohort study显示文摘 | Adamu MA Weck MN Rothenbacher D | 2011 | Int J Cancer2011，128，7： | 1 |
| 11 | Incidence of chronic atrophic gastritis:systematic review and meta - analysis of follow - up studies 显示文摘 | Adamu MA Week MN Gao L | 2010 | Eur J Epidemiol2010，25，7： | 1 |
| 12 | Incidence of chronic atrophic ga-stirtis:systematic review and meta-analysis of follow up studies显示文摘 | Adamu MA Weck MN Gao L | 2010 | Eur J Epidemiol2010，25，7： | 1 |
| 13 | lncidence of chronic atrophic gastritis:systematic review and meta-analysis of follow-up studies显示文摘 | Adamu MA Weck MN Gao L | 2010 | Eur J Epidemiol2010，25，7： | 1 |
| 14 | Helicobacter pylori infection is strongly associated with gastric and duodenal ulcers in a large prospective study显示文摘 | Schottker B Adamu MA Weck MN | 2012 | Clin Gastroenterol Hepatol2012，10，5： | 1 |
| 15 | Incidence of chronic atrophic gastritis: systematic review and meta-analysis of follow-up studies 显示文摘 | Adamu MA Week MN Gao L | 2010 | Eur J Epidemiol2010，25，7： | 1 |
| 16 | Incidence of chron- ic atrophic gastritis : systematic review and meta - analysis of follow - up studies 显示文摘 | Adamu MA Weck MN Gao L | 2010 | Eur J Epidemiol2010，25，7： | 1 |
| 17 | Incidence and risk factors for the development of chronic atrophic gastritis: five year follow-up of a population-based cohort study显示文摘 | Adamu MA Weck MN Rothenbacher D | 2011 | International Jour- nal of Cancer2011，128，7： | 1 |
| 18 | Incidence and risk factors for the development of chronic atrophic gastritis : five year fol- low- up of a population - based cohort study 显示文摘 | Adamu MA Week MN Rothenbacher D | 2011 | Int J Cancer2011，128，7： | 1 |
| 19 | Indidence of chronic atrophic gastritis: systematic review and meat-analysis of follow-up studies显示文摘 | Adamu MA Weck MN Gao L | 2010 | Eur J Epidemiol2010，25，7： | 1 |
| 20 | Helieobacter pylori infeetion, ehronic atrophic gastritis and major cardiovascular events: a population-based cohort study 显示文摘 | Sehottker B Adamu MA Weck MN | 2012 | Atheroselerosis2012，220，2： | 1 |
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