糖尿病患者不宜服用 Glucosamine 會增加其危險性?

上個星期，為母親的膝關節疼痛使用什麽保健藥之事，來這谘詢了一下大家和我身邊的朋友，有不少人推薦Glucosamine，說是效果很好 。剛上網查詢了一下，好象對血糖高和糖尿病患者不宜使用。也許對一般的健康人也會增加其危險性。不知大家看法如何？我在考慮該不該賣這個藥.

Too Much Glucosamine Can Cause the Death of Pancreatic Cells, Increase Diabetes Risk , Researchers Find

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.

所有跟帖： 

• 俺是糖尿病患者,而且也服用 Glucosamine. 不過不會使用5倍的劑量... -禦用文人- ♀ (0 bytes) () 01/12/2013 postreply 10:48:58

• 回複：俺是糖尿病患者,而且也服用 Glucosamine. 不過不會使用5倍的劑量... -txfmx- ♀ (159 bytes) () 01/12/2013 postreply 11:16:15

• 十年以前是每天吃,效果很好.以後的效果越來越小.感覺它不是一個僅僅缺乏軟骨麵合成原料的問題... -禦用文人- ♀ (149 bytes) () 01/12/2013 postreply 11:49:08

• 謝謝分享你的經驗。 -txfmx- ♀ (0 bytes) () 01/12/2013 postreply 12:08:34

• 文中引述的試驗都是 in vitro （細胞水平的試驗）。 -惡俗老狼- ♂ (305 bytes) () 01/13/2013 postreply 13:31:54

• 謝謝提示。非常尊重你，你是這裏的專家門診。 -txfmx- ♀ (0 bytes) () 01/14/2013 postreply 16:35:58

• Glucosamine can increase the risk of chronic heart failure for h -醫實注行- ♂ (104 bytes) () 01/13/2013 postreply 17:34:35

• 謝謝，學習了。 -txfmx- ♀ (0 bytes) () 01/14/2013 postreply 16:36:37