查看完整版本: 醫學:研究新發現 胰島素製造細胞可“反分化”
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a77554610 發表於 2008-8-8 05:35 PM

醫學:研究新發現 胰島素製造細胞可“反分化”

胰島素分泌細胞能否再生?這關係到糖尿病是否能藉由這種途徑來治療。如今這個夢想似乎即將成真。 科學家發現,負責製造胰島素的β細胞能夠在實驗條件控制下返回原始的狀態,形成「“類”幹細胞」(Stem-like Cells),這個「反分化」(dedifferentiation)的過程更適用於蘭氏小島(islets of Langerhans)內的三種細胞,這些細胞主要負責製造胰臟內的胰島素和激素。研究計劃主持人之一的Dr. Rosenberg說,「蘭氏小島內的三種細胞全部具備反分化的能力,這是史無前例的新發現!」("The potential for dedifferentiation of all the different cells that make up the islets of Langerhans is a totally new finding," Dr. Rosenberg said.) 現階段還無法得知這種反分化的過程在體內是否也適用,但這種結果已經相當令人振奮。科學家最近在進行再生療法的研究,之前探討胰島新生相關蛋白(Islet Neogenesis Associated Protein,INGAP)的功能,結果發現INGAP可引發胰臟內胰島的新生成,但當時還不知道其中的奧妙機制為何,因此蘭氏小島內的細胞具備反分化能力的發現,將有助於釐清相關的原因。 這項研究結果已刊登在七月號的《實驗室調查》期刊(Laboratory Investigation)。...<div class='locked'><em>瀏覽完整內容,請先 <a href='member.php?mod=register'>註冊</a> 或 <a href='javascript:;' onclick="lsSubmit()">登入會員</a></em></div><div></div>

greatsuccess 發表於 2015-2-6 02:36 PM

If you snap off a spark plug or strip the threads, you’ll have a real nightmare on your hands. So if a plug shows any sign of seizing, stop and spray on rust penetrant. Let it sit for at least 30 minutes and try to loosen it just a one-eighth turn. Don’t get greedy and keep turning. Add more penetrant and turn the plug

doctorA 發表於 2015-2-7 07:31 PM

所以???很多細胞不分畫眉比較好

greatsuccess 發表於 2015-4-14 11:30 AM

perpetual maidenhood,
And unto me no second friend.





VII
Dark house, by which once more I stand
Here in the long unlovely street,
Doors, where my heart was used to beat
So quickly, waiting for a hand,


A hand that can be clasp'd no more—
Behold me, for I cannot sleep,
And like a guilty thing I creep
At earliest morning to the door.
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