Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Glucosamine causes the death of pancreatic cells
Université Laval ^ | October 27, 2010 | Unknown

Posted on 10/27/2010 12:51:34 PM PDT by decimon

This release is available in French.

Quebec City, October 27, 2010—High doses or prolonged use of glucosamine causes the death of pancreatic cells and could increase the risk of developing diabetes, according to a team of researchers at Université Laval's Faculty of Pharmacy. Details of this discovery were recently published on the website of the Journal of Endocrinology.

In vitro tests conducted by Professor Frédéric Picard and his team revealed that glucosamine exposure causes a significant increase in mortality in insulin-producing pancreatic cells, a phenomenon tied to the development of diabetes. Cell death rate increases with glucosamine dose and exposure time. "In our experiments, we used doses five to ten times higher than that recommended by most manufacturers, or 1,500 mg/day," stressed Professor Picard. "Previous studies showed that a significant proportion of glucosamine users up the dose hoping to increase the effects," he explained.

Picard and his team have shown that glucosamine triggers a mechanism intended to lower very high blood sugar levels. However, this reaction negatively affects SIRT1, a protein critical to cell survival. A high concentration of glucosamine diminishes the level of SIRT1, leading to cell death in the tissues where this protein is abundant, such as the pancreas.

Individuals who use large amounts of glucosamine, those who consume it for long periods, and those with little SIRT1 in their cells are therefore believed to be at greater risk of developing diabetes. In a number of mammal species, SIRT1 level diminishes with age. This phenomenon has not been shown in humans but if it were the case, the elderly—who constitute the target market for glucosamine—would be even more vulnerable.

"The key point of our work is that glucosamine can have effects that are far from harmless and should be used with great caution," concluded Professor Picard.

The results obtained by Picard and his team coincide with recent studies that cast serious doubt on the effectiveness of glucosamine in treating joint problems.

###

This study was co-authored by Mathieu Lafontaine-Lacasse and Geneviève Doré.

Information: Frédéric Picard Faculty of Pharmacy Université Laval 418-656-8711 ext. 3737 frederic.picard@criucpq.ulaval.ca


TOPICS: Health/Medicine
KEYWORDS: cancer; diabetes; glucosamine; health; medicine; pharmaceuticals
Navigation: use the links below to view more comments.
first previous 1-2021-34 last
Comment #21 Removed by Moderator

To: Wilburr

Pretty interesting stuff.. but sounds like too much factory work.. ;0]


22 posted on 10/27/2010 3:43:24 PM PDT by Mashood
[ Post Reply | Private Reply | To 19 | View Replies]

To: decimon

OMG we are all going to die....I have taken 1000 mg a day for over 10 years and so has my dog....getting sick and tired of all the warning we are subject to.....


23 posted on 10/27/2010 5:38:46 PM PDT by goat granny
[ Post Reply | Private Reply | To 1 | View Replies]

To: goat granny

goat granny made a mistake, my dog has only been on it for a couple of years....me 10 years....


24 posted on 10/27/2010 5:40:34 PM PDT by goat granny
[ Post Reply | Private Reply | To 23 | View Replies]

To: decimon; AdmSmith; Arthur Wildfire! March; Berosus; bigheadfred; ColdOne; Convert from ECUSA; ...

I tried it — it made my joints ache. So I stopped using it. Colloidal minerals has worked for my joint pain in the past. Then the pain goes away, I stop taking a capful every morning, and...


25 posted on 10/27/2010 6:55:31 PM PDT by SunkenCiv (The 2nd Amendment follows right behind the 1st because some people are hard of hearing.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: SunkenCiv
Colloidal minerals has worked for my joint pain in the past.

Am I blue
Am I blue
Ain’t these tears, in these eyes telling you

26 posted on 10/27/2010 7:05:18 PM PDT by decimon
[ Post Reply | Private Reply | To 25 | View Replies]

To: decimon; SunkenCiv; GOPJ; diamond6; austinmark; FreedomCalls; IslandJeff; JRochelle; MarMema; ...
Hexosamines stimulate apoptosis by altering Sirt1 action and levels in rodent pancreatic β-cells

Inducing apoptosis causes cell death. FReepmail me if you want on or off the diabetes ping list.

27 posted on 10/27/2010 11:05:23 PM PDT by neverdem (Xin loi minh oi)
[ Post Reply | Private Reply | To 26 | View Replies]

bump!


28 posted on 10/28/2010 4:43:01 AM PDT by trisham (Zen is not easy. It takes effort to attain nothingness. And then what do you have? Bupkis.)
[ Post Reply | Private Reply | To 27 | View Replies]

To: Wilburr
Wow, guess I will be cancer free for life.

Took mega doses from 1975 to 1978 LOL

29 posted on 10/28/2010 5:17:12 AM PDT by Popman (Obama. First Marxist to turn a five year Marxist plan into a 4 year administration.)
[ Post Reply | Private Reply | To 19 | View Replies]

Comment #30 Removed by Moderator

To: goat granny
In dog years you are probably correct. Note I just started taking Glucosamine and Chondroitin to see if it helps some hip pain I've started getting around age 59.

As with most of these studies if you take 100 times the normal amount yeah that's probably not smart.

31 posted on 10/28/2010 7:44:57 AM PDT by McGruff (A political party cannot be all things to all people. It must represent certain fundamental beliefs)
[ Post Reply | Private Reply | To 23 | View Replies]

To: McGruff

I hope it works for you, it sure works for me, if I forget to take it for several days I start with join pain again. As soon as I start taking it again, it goes away.. I found it takes a couple of weeks for it to kick in...for some its less time for some it takes a little longer...I buy the cheapest stuff by Schiff at wal mart...12.99 for 120 pills..


32 posted on 10/28/2010 10:13:50 AM PDT by goat granny
[ Post Reply | Private Reply | To 31 | View Replies]

To: neverdem

Simply - do you know if there are any results from this treatment with pancreatic cancer?


33 posted on 10/28/2010 5:25:48 PM PDT by freema (MarineNiece,Daughter,Wife,Friend,Sister,Friend,Aunt,Friend,Mother,Friend,Cousin, FRiend)
[ Post Reply | Private Reply | To 27 | View Replies]

To: freema
Simply - do you know if there are any results from this treatment with pancreatic cancer?

No. I just noticed your question. I'm sorry about the late reply.

34 posted on 11/09/2010 12:50:19 PM PST by neverdem (Xin loi minh oi)
[ Post Reply | Private Reply | To 33 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-34 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson