非洲人乙狀結腸比白人和印度人長，研究在南非做的找不到足夠的東亞人？？？

6 down vote

I couldn't find data on Japanese specifically but at least one study has looked at racial differences. This comparative study from 2011 Sigmoid colon morphology in the population groups of Durban, South Africa, with special reference to sigmoid volvulus A total of 590 cadavers were examined (403 African, 91 Indian, and 96 White). Length and height of the sigmoid colon and mesocolon were significantly longer in Africans, and mesocolon root was significantly narrower in Africans. What we don't know if this is acquired as a result of a diet high in roughage, or inherited. The claim made about the Japanese colon is made by themselves, apparently as an explanation as to why they should not eat some Western foods. Now since this study included Indian cadavers, and since Indians are considered South Asians, then it would appear that Africans have longer sigmoid colons than some South Asians. Abstract Send to:         Clin Anat. 2011 May;24(4):441-53. doi: 10.1002/ca.21100. Epub 2011 Apr 8. Sigmoid colon morphology in the population groups of Durban, South Africa, with special reference to sigmoid volvulus. Madiba TE1, Haffajee MR. Author information   Abstract Sigmoid volvulus demonstrates geographical, racial, and gender variation. This autopsy study was undertaken to establish morphological differences of the sigmoid colon and its mesocolon in which the length and other characteristics were assessed. A total of 590 cadavers were examined (403 African, 91 Indian, and 96 White). Length and height of the sigmoid colon and mesocolon were significantly longer in Africans, and mesocolon root was significantly narrower in Africans. Mesocolic ratio for Africans, Indians, and Whites was 1.1 ± 0.8, 1.8 ± 0.7, and 1.9 ± 1.0, respectively. Africans had a significantly high incidence of redundant sigmoid colon with the long-narrow type and suprapelvic position predominating (P = 0.003); the opposite applied to the classic type. There was no difference in sigmoid colon length, mesocolon height, and width between males and females in all population groups. Among Africans, the long-narrow type was more common in males, and the classic and long-broad types were more common in females. Splaying of teniae coli and thickening of the mesentery were more common in Africans. Tethering of the sigmoid colon to the posterior abdominal wall was less common in Africans compared with other population groups. In conclusion, the sigmoid colon was longer, and the sigmoid mesocolon root was narrower in Africans compared with the other population groups, and the sigmoid colon had a suprapelvic disposition among Africans. In Africans, the sigmoid colon was longer in males with a long-narrow shape. These differences may explain geographical and racial differences in sigmoid volvulus. Copyright © 2011 Wiley-Liss, Inc.

所有跟帖： 

• 從這個網站見到的 -誌在千裏- ♀ (138 bytes) () 09/19/2015 postreply 19:29:39

• 非常感謝！要仔細看看 -吃與活- ♂ (0 bytes) () 09/19/2015 postreply 19:45:19

• 哪黑人的乙狀結腸息肉或結腸癌比其他人種的發病率高嗎？ -禦用文人- ♀ (0 bytes) () 09/19/2015 postreply 20:53:38

• 美國黑人結腸癌還真比別的種族高。。。 -誌在千裏- ♀ (952 bytes) () 09/19/2015 postreply 21:02:10

• 謝謝。學習了。黑人不但乙狀結腸比較長，而且飲食結構也比其他族群差。 -禦用文人- ♀ (0 bytes) () 09/19/2015 postreply 21:33:26

• 小腸其實和吸收營養更相關，大概乙狀結腸更容易測量？ -誌在千裏- ♀ (0 bytes) () 09/19/2015 postreply 20:54:16

• 大頂，非常感謝分享。我以前搜尋過，想找出解剖根據，無功而返。你態度認真，功力了得，佩服。 -欲千北- ♂ (0 bytes) () 09/20/2015 postreply 04:05:27

• 毛主席說，“世界上怕就怕認真二字。” -禦用文人- ♀ (101 bytes) () 09/20/2015 postreply 08:51:36

• 千裏應該單獨上個貼。 -欲千北- ♂ (0 bytes) () 09/20/2015 postreply 04:10:07

• 謝謝兩位！過獎了！ -誌在千裏- ♀ (0 bytes) () 09/20/2015 postreply 20:09:37