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1 | 0Study Finds Probiotics 'Not As Beneficial For Gut Health As Previously Thought' (theguardian.com) null/SLASHDOT/0102641010 70\r |
2 | i Thursday September 06, 2018 @11:30PM (BeauHD)\r | |
3 | i from the contrary-to-popular-belief dept.\r | |
4 | i\r | |
5 | i An anonymous reader quotes a report from The Guardian: The gut\r | |
6 | i microbiome is the sum total of all the micro-organisms living\r | |
7 | i in a person's gut, and has been shown to play a huge role in\r | |
8 | i human health. New research has found probiotics -- usually\r | |
9 | i taken as supplements or in foods such as yoghurt, kimchi or\r | |
10 | i kefir -- can hinder a patient's gut microbiome from returning\r | |
11 | i to normal after a course of antibiotics, and that different\r | |
12 | i people respond to probiotics in dramatically different ways.\r | |
13 | i In the first of two papers published in the journal Cell,\r | |
14 | i researchers performed endoscopies and colonoscopies to sample\r | |
15 | i and study the gut microbiomes of people who took antibiotics\r | |
16 | i before and after probiotic consumption. Another group were\r | |
17 | i given samples of their own gut microbiomes collected before\r | |
18 | i consuming antibiotics. The researchers found the microbiomes\r | |
19 | i of those who had taken the probiotics had suffered a "very\r | |
20 | i severe disturbance." "Once the probiotics had colonized the\r | |
21 | i gut, they completely inhibited the return of the indigenous\r | |
22 | i microbiome which was disrupted during antibiotic treatment,"\r | |
23 | i said Eran Elinav, an immunologist at the Weizmann Institute of\r | |
24 | i Science in Israel and lead author on the studies. The\r | |
25 | i scientists also compared the gut microbiomes of the gut\r | |
26 | i intestinal tract of 25 volunteers with that of their stools.\r | |
27 | i They found that stool bacteria only partially correlated with\r | |
28 | i the microbiomes functioning inside their bodies. "So the fact\r | |
29 | i that we all almost exclusively rely on stool in our microbiome\r | |
30 | i research may not be a reliable way of studying gut microbiome\r | |
31 | i health," said Elinav. In the second paper, the researchers\r | |
32 | i examined the colonization and impact of probiotics on 15\r | |
33 | i people by sampling within their gastrointestinal tract. They\r | |
34 | i divided the individuals into two groups: one were given a\r | |
35 | i preparation made of 11 strains of very commonly used\r | |
36 | i probiotics and the other were given a placebo. Of those who\r | |
37 | i were given probiotics, he said, "We could group the\r | |
38 | i individuals into two distinct groups: one which resisted the\r | |
39 | i colonisation of the probiotics, and one in which the\r | |
40 | i probiotics colonized the gut and modified the composition of\r | |
41 | i the gut microbiome and the genes of the host individual."\r | |
42 | i\r |