Good only for entertainment value... and, of course, the government (1)
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John Hawks (2)
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john hawks weblog (2)
1 day, 16 hours
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Genetic Future points out the minuses of a commercial gene test offering, which promises to tell parents whether their kids have alpha-actinin-3 gene combinations that are well-suited to Olympic sprinting. Since Dan is an expert on this gene, he can say with some authority that the test isn't adding much value for parents who want to make their sub-8-year-olds into the next Usain Bolt. Plus, for a few dollars more the 23andMe test (and for ...
科学家识别出可能的普遍衰老机制 (6)
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matrix (14)
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Solidot (14)
2 days, 23 hours
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哈佛医学院的研究人员识别出了可能的普遍性衰老机制，既适用于单细胞生物如酵母，也适用于多细胞生物，包括我们人类。研究人员发现一组能影响酵母衰老的基因也能影响老鼠。 这种叫Sirtuin的基因，能执行两种特殊任务：调节何种基因是“开”还是“关”；帮助修复受损DNA。因为随着生物的成长，DNA受损的几率也在增加，留给Sirtuin修复的时间也越来越少。日益增多的未修复基因是衰老的一个重要因素。根据这一理论，研究人员在老鼠身上增加了额外的sirtuin基因拷贝，提高其活性；或喂食sirtuin基因催化剂白藜芦醇（resveratrol），结果发现平均寿命延长了24%至46%。论文发表在最新一期的《细胞》杂志上。
Scientists Identify a Potentially Universal Mechanism of Aging (22)
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Soulskill (57)
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Slashdot (152)
3 days, 13 hours
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cybergenesis2008 points us to a summary of research out of Harvard Medical School in which a set of genes known to affect aging in yeast was found to affect aging in mice as well. The genes, called sirtuins, perform two particular tasks; regulating which genes are "on" and "off," and also helping to repair damaged DNA. As an organism ages, the frequency of damage to DNA increases, leaving less time for the sirtuins' regulatory tasks. ...
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JonTheGeek said:
Huh, they found the mechanism for resveratrol (the stuff in grapes/wine that has been linked to longer life). And it's plausible. This is very interesting...
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Lorin said:
I still remember all the filmstrips in grade school that told me about custom-grown organs and radical extensions of our lifespans. To think that some of these things are coming true. Wow!
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ScorpFromHell said:
OMG!! Is this the God gene?
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Christopher said:
Next stop, Rollbacks?!?!
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terri said:
terrifying. 'age as a disease'
唐氏综合征或许能在子宫中治疗 (2)
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matrix (14)
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Solidot (14)
3 days, 21 hours
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唐氏综合症又名“先天愚型”，包含一系列的遗传病，其中最具代表性的第21对染色体的三体现象，会导致包括学习障碍、智能障礙和残疾等高度畸形。 美国研究人员现在发现了如何在老鼠出生之前治疗唐氏综合症的方法。这可能为那些已经知道自己未出生婴儿患有唐氏综合症的孕妇带来希望。患上类似唐氏综合症疾病的幼鼠在还是胎儿时，接受神经保护化学剂治疗，部分导致发育延迟的情况消失了。
Solar power turns over a new leaf (1)
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Paul Raven (4)
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Futurismic (10)
6 days, 8 hours
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What do you get when you combine thin sheets of gold leaf and a protein found in spinach? You get an artificial leaf that can photosynthesise energy from sunlight. It’s not a highly efficient conversion rate yet - way behind the top-of-the-range silicon photovoltaics - but the simplicity of the design means it could become a much cheaper alternative. [image by angelrays] Project Wonderful - Your ad here, right now, for as low as $0.00 ...
Should We Clone a Neanderthal? (23)
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kdawson (62)
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1 week
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SpaceAdmiral writes "Forget cloning a woolly mammoth — should scientists clone a Neanderthal? Such a feat should be possible soon, although it raises a number of bioethics concerns, including where to draw the line between humans and other animals."Read more of this story at Slashdot.
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Nolan said:
He'd have the right to live until proven otherwise.
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Bill Blaney said:
Oh man, just think of the reality TV possibilities!
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Adrian said:
Encino Man anyone?
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Daniel Lestarjette said:
No we should not clone a Neandertal.
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gerardbdn said:
No fa falta que clonin res, jo els puc presentar uns quants de neandertals...
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Alex Resta said:
me too!>Gerard readsmymind: “No fa falta que clonin res, jo els puc presentar uns quants de neandertals...”
Bush auf dem G20-Gipfel: keiner will ihm die Hand schütteln. (1)
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encontro real e ótimo fim da semana! (1)
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Denize (0)
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la reina madre (0)
1 week, 2 days
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Pessoas queridas tenham um ótimo final de semana! Quero lembrar que próximo dia 29/11 (no outro sábado) nos encontraremos aqui no atelier para uma venda especial e confraternização de fim de ano. Todas serão bem-vindas e o convite oficial vai aparecer aqui em breve. Estou avisando para que vocês possam se organizar e vir até aqui, que muitas novidades, peças inéditas e promoções incríveis estarão esperando por vocês. Nas notícias da rainha tem vários detalhes ...
Resurrecting the Mighty Mammoth, Cheaply (2)
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timothy (8)
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Technology News (0)
1 week, 4 days
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somanyrobots writes with an interesting followup in the New York Times to the earlier-reported substantial reconstruction of the woolly mammoth genome: "Scientists are talking for the first time about the old idea of resurrecting extinct species as if this staple of science fiction is a realistic possibility, saying that a living mammoth could perhaps be regenerated for as little as $10 million. The same technology could be applied to any other extinct species from which ...
Scientists Grow New Eyes (In Tadpoles) (1)
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timothy (8)
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Slashdot: Science (2)
1 week, 4 days
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MagnetDroid writes "Michael Zuber and his colleagues from SUNY Upstate Medical University have shown how to regrow frogs eyes using stem cells. Zuber's team genetically engineered the stem cells to express transcription factors that regulate eye development and, when they transplanted them into frog embryos that had had one eye removed, they regrew into fully functioning tadpole eyes. Unfortunately, the same trick doesn't work in mammals but Zuber hopes to find chemicals that activate the ...
Most of Woolly Mammoth Genome Reconstructed (6)
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samzenpus (6)
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Slashdot (152)
1 week, 4 days
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geekmansworld writes "From the Washington Post, 'An international team of scientists has reconstructed more than three-quarters of the genome of the woolly mammoth using DNA extracted from balls of hair, the first time this has been accomplished for an extinct species.' Who wants a pet mammoth?"Read more of this story at Slashdot.
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adam said:
You never had control! THAT'S THE ILLUSION!!
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Navarr said:
Expect Jurrasic Park to become a reality really soon. And I think I might enjoy having a pet mammoth
Radius Adds $15M to Series C (1)
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Xconomy Venture Capital Feed (0)
1 week, 4 days
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VC, Life Sciences, Biotech Ryan McBride wrote: Radius Health, a Cambridge, MA-based developer of drugs for osteoporosis and women’s health, says it has added $15 million more to its Series C round of venture capital, which now totals $82.5 million, with investments from MPM Capital, the Wellcome Trust, HealthCare Ventures, Oxford Bioscience Partners, BB Biotech Ventures, and Scottish Widows Investment Partnership. The company has raised a total of $106.5 million in venture capital. Comments | ...
PC Magazine סוגר את המהדורה המודפסת (1)
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כלכליסט - אינטרנט (0)
1 week, 4 days
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מגזין המחשבים יעבור לפעול בגרסה אינטרנטית בלבד, בעקבות הירידה המתמשכת במספר המנויים למגזין המודפס
德国发现最古老的核心家庭谋杀案 (3)
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matrix (14)
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Solidot (14)
1 week, 5 days
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根据对一座距今4600年的古墓残骸的分析，遗传学鉴定出了最古老的核心家庭谋杀案，破碎的骨头显示他们是被集体遭遇屠杀。 DNA对比证实坟墓中包括父亲、母亲和他们的两个孩子。澳大利亚古代DNA中心的Wolfgang Haak博士表示，“我们十分确定，这是基于有力的生物学事实而非假说或推测。”这些石器时代的人被认为属于叫Corded Ware Culture的部落。研究人员在孩子和成人牙齿中发现了相同类型的同位素锶，牙齿是在现场发现的，但是与之最相匹配的女性牙齿至少在50公里以外，暗示他们是从谋杀地点转移到埋葬点。Bristol大学的Alistair Pike说，“他们无疑是遭到谋杀，头上有大洞，手指和手腕都断了。”他注意到其中一位受害者脊椎上插入了一个石头武器，许多人的手臂也是交缠在一起。Haak表示，“你可能会对他们表示同情。这就是人类，有人肯定会牵挂他们....我们不知道当时的生活有多艰难，是否还有空间去爱。”
Citigroup buying back remaining SIV assets (1)
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Reuters: Business News (0)
1 week, 5 days
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NEW YORK (Reuters) - Citigroup Inc said it agreed to buy $17.4 billion of assets remaining in a series of funds known as structured investment vehicles, essentially ending the funds that it has been supporting since December 2007.
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Bush auf dem G20-Gipfel: keiner will ihm die Hand schütteln.Shared by Dr. Azrael Tod (23)Contribute commentToxel.com (14) permalink
Collection of unusual and creative staircase designs from around the world. Floating Stairs Creative “floating” stairs designed by Florence architect Guido Ciompi for The Gray Hotel in Milan, Italy. [link] Skateboard Stairs Creative stairs made from skateboard decks. [link] Hanging Box Stairs Creative inside-out hanging box stairs. [link] Disappearing Stairs With a press of a button–and some hydraulic pistons–this staircase folds up and [...]Shared by Adam Fuhrer (1) AmyVernon (140) Ankesh (3) ashokkumar (0) Bassoon (0) Betül (0) Cali (0) Christie Landtroop (12) claudio rivera (2) Daniel (59) Daniel Stinebaugh (1) Dave (13) Daver (9) david miron (4) Davide Taviani (0) Dominic Davis (1) Elstruthio (1) Financiarul (0) GenGreen (2) Grace (0) guy (45) Ian (18) id084895 (4) james (22) Jeff (59) Jeremy (2) Jeremy (1) john headstrong (2) Jon Sagara (0) Joshua McAllister (9) Justin Younger (4) Kate (0) Kate (40) Leena (190) Louie (0) Marcus5s (73) Matthias (0) Merlyn Gordon (0) Mikhail (0) MONA (17) Mr. BabyMan (43) Muhammad Saleem (78) najee (0) Nora (11) Organized Media (2) OzaMeilleur (9) Piedro Molinero (12) Rachel Dixon (0) Ricardo Giesta (9) Rob Jongschaap (18) Roger (4) samet (0) Sarah Burris (1) Sean (1) Sean O' Grady (7) Sean Rasmussen (16) Sebastian Schedy (1) Shane Coffey (0) Shawn Griffin (0) Shea Gunther (4) Steven Pitts (0) Sun Tzu (153) Tal Siach (35) Thao Ly (33) Tim (0) Tom Davies (16) Trevor Russell (2) Victor Barrera (135)Contribute comment
