黄金大米事件，最缺德的是汤光文使用了同位素氘和碳13来 ...

这是买买提上美国华人学者查出来的。


http://www.mitbbs.com/article_t/Military/38843707.html


发信人: Fabu88 (范小楼), 信区: Military
标  题: 汤光文的黄金大米paper用的是氘同位素标记，无放射性。
发信站: BBS 未名空间站 (Thu Dec  6 11:38:21 2012, 美东)

汤光文的黄金大米paper用的是deuterium同位素标记，无放射性。这篇paper用
了68个小孩。（PubMed）汤的问题是对规则
的漠视，以及受试者的不知情。在这篇paper中，有以下声明：The study recruitment
processes and protocol
were approved by the Institutional Review Board–Tufts
Medical Center in the United States and by the Ethics Review
Committee of Zhejiang Academy of Medical Sciences in China.
Both parents and pupils consented to participate in the study.

但据说只让学生和家长看了知情书的最后一页。

Am J Clin Nutr. 2012 Sep;96(3):658-64. doi: 10.3945/ajcn.111.030775. Epub
2012 Aug 1.
β-Carotene in Golden Rice is as good as β-carotene in oil at providing
vitamin A to children.
Tang G, Hu Y, Yin SA, Wang Y, Dallal GE, Grusak MA, Russell RM.
Source

Carotenoids & Health Laboratory, USDA Human Nutrition Research Center on
Aging, Tufts University, Boston, MA 02111, USA. guangwen.tang@tufts.edu
Abstract
BACKGROUND:

Golden Rice (GR) has been genetically engineered to be rich in β-carotene
for use as a source of vitamin A.
OBJECTIVE:

The objective was to compare the vitamin A value of β-carotene in GR and in
spinach with that of pure β-carotene in oil when consumed by children.
DESIGN:

Children (n = 68; age 6-8 y) were randomly assigned to consume GR or spinach
(both grown in a nutrient solution containing 23 atom% ²H₂O) or
[²H₈]β-carotene in an oil capsule. The GR and spinach β-
carotene were enriched with deuterium (²H) with the highest abundance
molecular mass (M) at M(β-C)+²H₁₀. [¹³C₁&#
8320;]Retinyl acetate in an oil capsule was administered as a reference dose
. Serum samples collected from subjects were analyzed by using gas
chromatography electron-capture negative chemical ionization mass
spectrometry for the enrichments of labeled retinol: M(retinol)+4 (from [&#
178;H₈]β-carotene in oil), M(retinol)+5 (from GR or spinach [²H&
#8321;₀]β-carotene), and M(retinol)+10 (from [¹³C₁&#
8320;]retinyl acetate).
RESULTS:

Using the response to the dose of [¹³C₁₀]retinyl
acetate (0.5 mg) as a reference, our results (with the use of AUC of molar
enrichment at days 1, 3, 7, 14, and 21 after the labeled doses) showed that
the conversions of pure β-carotene (0.5 mg), GR β-carotene (0.6 mg), and
spinach β-carotene (1.4 mg) to retinol were 2.0, 2.3, and 7.5 to 1 by
weight, respectively.
CONCLUSIONS:

The β-carotene in GR is as effective as pure β-carotene in oil and better
than that in spinach at providing vitamin A to children. A bowl of ~100 to
150 g cooked GR (50 g dry weight) can provide ~60% of the Chinese
Recommended Nutrient Intake of vitamin A for 6-8-y-old children

发信人: wonderment (wonder), 信区: Military
标  题: Re: 汤光文的黄金大米paper用的是氘同位素标记，无放射性。
发信站: BBS 未名空间站 (Thu Dec  6 21:47:29 2012, 美东)


除了氘外, 好象还有另外一个 同位素 :  碳-13 也掺合在这个大米里面. (我们平时接
触的是 碳-12).

有没有放射性, 或者有多毒, 且不讲, 但是这真的是把小孩当小白鼠啊.

有人总喜欢说, 毒不死人, 没有反射性. 那么就能随便给小孩子用吗 ? 狗屎吃一碗估
计也死不了人, 马粪也没有同位素, 这汤教授全家过圣诞节, 就吃狗屎拌马粪, 是不是
很快乐啊 ?!!



*************************************************************

下面是汤教授的主页。前几天看还有个老女人的照片，现在已经撤去了，可能是怕在街上被人认出暴打一顿。

http://hnrca.tufts.edu/people/scientists/q-z/guangwen-tang-ph-d/

******************************************************************

超大的网友，要发挥自己的力量和影响，这件事不能就这样赔8万块就算完了。这件事一定要让所有涉案人员有所解释，付出代价。这是买买提上美国华人学者查出来的。


http://www.mitbbs.com/article_t/Military/38843707.html


发信人: Fabu88 (范小楼), 信区: Military
标  题: 汤光文的黄金大米paper用的是氘同位素标记，无放射性。
发信站: BBS 未名空间站 (Thu Dec  6 11:38:21 2012, 美东)

汤光文的黄金大米paper用的是deuterium同位素标记，无放射性。这篇paper用
了68个小孩。（PubMed）汤的问题是对规则
的漠视，以及受试者的不知情。在这篇paper中，有以下声明：The study recruitment
processes and protocol
were approved by the Institutional Review Board–Tufts
Medical Center in the United States and by the Ethics Review
Committee of Zhejiang Academy of Medical Sciences in China.
Both parents and pupils consented to participate in the study.

但据说只让学生和家长看了知情书的最后一页。

Am J Clin Nutr. 2012 Sep;96(3):658-64. doi: 10.3945/ajcn.111.030775. Epub
2012 Aug 1.
β-Carotene in Golden Rice is as good as β-carotene in oil at providing
vitamin A to children.
Tang G, Hu Y, Yin SA, Wang Y, Dallal GE, Grusak MA, Russell RM.
Source

Carotenoids & Health Laboratory, USDA Human Nutrition Research Center on
Aging, Tufts University, Boston, MA 02111, USA. guangwen.tang@tufts.edu
Abstract
BACKGROUND:

Golden Rice (GR) has been genetically engineered to be rich in β-carotene
for use as a source of vitamin A.
OBJECTIVE:

The objective was to compare the vitamin A value of β-carotene in GR and in
spinach with that of pure β-carotene in oil when consumed by children.
DESIGN:

Children (n = 68; age 6-8 y) were randomly assigned to consume GR or spinach
(both grown in a nutrient solution containing 23 atom% ²H₂O) or
[²H₈]β-carotene in an oil capsule. The GR and spinach β-
carotene were enriched with deuterium (²H) with the highest abundance
molecular mass (M) at M(β-C)+²H₁₀. [¹³C₁&#
8320;]Retinyl acetate in an oil capsule was administered as a reference dose
. Serum samples collected from subjects were analyzed by using gas
chromatography electron-capture negative chemical ionization mass
spectrometry for the enrichments of labeled retinol: M(retinol)+4 (from [&#
178;H₈]β-carotene in oil), M(retinol)+5 (from GR or spinach [²H&
#8321;₀]β-carotene), and M(retinol)+10 (from [¹³C₁&#
8320;]retinyl acetate).
RESULTS:

Using the response to the dose of [¹³C₁₀]retinyl
acetate (0.5 mg) as a reference, our results (with the use of AUC of molar
enrichment at days 1, 3, 7, 14, and 21 after the labeled doses) showed that
the conversions of pure β-carotene (0.5 mg), GR β-carotene (0.6 mg), and
spinach β-carotene (1.4 mg) to retinol were 2.0, 2.3, and 7.5 to 1 by
weight, respectively.
CONCLUSIONS:

The β-carotene in GR is as effective as pure β-carotene in oil and better
than that in spinach at providing vitamin A to children. A bowl of ~100 to
150 g cooked GR (50 g dry weight) can provide ~60% of the Chinese
Recommended Nutrient Intake of vitamin A for 6-8-y-old children

发信人: wonderment (wonder), 信区: Military
标  题: Re: 汤光文的黄金大米paper用的是氘同位素标记，无放射性。
发信站: BBS 未名空间站 (Thu Dec  6 21:47:29 2012, 美东)


除了氘外, 好象还有另外一个 同位素 :  碳-13 也掺合在这个大米里面. (我们平时接
触的是 碳-12).

有没有放射性, 或者有多毒, 且不讲, 但是这真的是把小孩当小白鼠啊.

有人总喜欢说, 毒不死人, 没有反射性. 那么就能随便给小孩子用吗 ? 狗屎吃一碗估
计也死不了人, 马粪也没有同位素, 这汤教授全家过圣诞节, 就吃狗屎拌马粪, 是不是
很快乐啊 ?!!



*************************************************************

下面是汤教授的主页。前几天看还有个老女人的照片，现在已经撤去了，可能是怕在街上被人认出暴打一顿。

http://hnrca.tufts.edu/people/scientists/q-z/guangwen-tang-ph-d/

******************************************************************

超大的网友，要发挥自己的力量和影响，这件事不能就这样赔8万块就算完了。这件事一定要让所有涉案人员有所解释，付出代价。