But as people age, the brain secretion of melatonin decreases.

但是99性爱精品视频网，隨著年齡的人jiujiuren，大腦分泌的褪黑激素減少99r网在线免费观看视频。

If the toxic effects of viral gene therapy can be overcome, Melton's work may provide a basis for treating certain types of diabetes, in which cells in the pancreas that produce insulin die and are not replaced.

如果能使病毒基因療法不產(chǎn)生毒性效果日韩www，那么梅爾頓從事的工作可為治療因分泌胰島素的胰腺細(xì)胞壞死后沒有得到替代的糖尿病打下基礎(chǔ)影音先锋中文字幕资源。

Trained as a molecular biologist in amphibian development, Melton began the work he pursues today: trying to find a way to make insulin-producing cells by using stem cells.

作為一個在兩棲類進(jìn)化訓(xùn)練有素的分子生物學(xué)家，Melton開始了他現(xiàn)在所進(jìn)行的工作：試圖發(fā)現(xiàn)一種方法使用干細(xì)胞制造分泌胰島素的細(xì)胞综合国产涩涩在线观看视频。

A network of stacked membranous vesicles present in most living cells that functions in the formation of secretions within the cell.

堆疊的膜泡網(wǎng)絡(luò)久久riav.，在大多數(shù)活細(xì)胞中存在，用以形成細(xì)胞內(nèi)的各種分泌液亚洲日韩色欧另类欧美在线蜜臀。

Meno pause occurs when the ovaries gradually lose the ability to produce estrogen and progesterone, the hormones that govern the menstrual cycle .

當(dāng)卵巢漸漸失去分泌雌激素和黃體酮——控制月經(jīng)周期的荷爾蒙——的能力時九九精品视频在线播放平台，更年期就來了。

Possible cell sources for replacement range from autologous grafts of dopamine secreting cells to allografts of fetal ventral mesencephalon and neural precursor cells derived from fetal tissue or embryonic stem cells.

從多巴胺分泌細(xì)胞的自體移植物到胎兒組織的同種異體移植物或胚胎干細(xì)胞都是可替代的可能細(xì)胞來源国产一区二区视频免费看。

Heregulin-αwas a cytokine which was synthesized and secreted by mammary mesenchyme,adjacent to lobuloaveolar structures.

Heregulin-α是主要由乳腺間質(zhì)細(xì)胞合成和分泌的細(xì)胞因子乱伦无码高清，作用于乳腺導(dǎo)管和腺泡上皮細(xì)胞。

As collagen in the meshwork breaks down, it is replaced and repaired by new collagen secreted by fibroblasts.

隨著膠原網(wǎng)打破了精品国产丝袜在线拍国语APP，這是更換和修理的新的膠原纖維細(xì)胞分泌的国产精品久久久久久亚洲按摩。

Mesothelioma is a cancer that affects the mesothelium , which are the serous membranes that protect and support different organs in the body by secreting fluid that reduces friction and eases movement of those organs within their respective body cavities.

間皮瘤是影響間皮的一種癌癥。間皮是可以保護(hù)和支持機(jī)體不同的器官通過分泌液體減少這些器官在他們各自腔隙的摩擦和緩沖運(yùn)動的漿膜99er久久免费只有精品。

Endometrial hyperplasia usually results with conditions of prolonged estrogen excess and can lead to metrorrhagia (uterine bleeding at irregular intervals), menorrhagia (excessive bleeding with menstrual periods), or menometrorrhagia .

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