COMMON DIABETES DRUG CAN REDUCE BAD CHOLESTEROL
A common diabetes drug Metformin can also help lower “bad”
cholesterol that is known for promoting cardiovascular diseases by hardening
the arteries, significant research has found.
“The findings suggest that Metformin might indeed have an
additional beneficial effect with regards to cardiovascular diseases among the
diabetes patients”, said study first author Dr Tao Xu from Helmholtz Zentrum
Minchen, the German research centre for environment health in Neuherberg.
Along with the team from the German Diabetes Centre (DDZ) in
Dusseldorf, Dr Tu and colleagues analysed more than 1,800 blood samples of
participants.
Using a comprehensive approach, the scientists investigated
metabolic products (metabolites) as well as genetics of these participants.
They found that the administration of Metformin in patients
suffering from Type 2 Diabetes led to a change in metabolite levels.
According to the authors, this was associated with a
significantly decreased level of LDL or “bad” cholesterol.
The researchers speculate that Metformin intake affects the
levels of LDL cholesterol, leading to a down-regulation of specific genes.
“This is also supported by the fact that three lipid metabolites
are decreased after taking the diabetes drug. Presumably, this is the mechanism
how the production of ‘LDL’ cholesterol is repressed by Metformin,” explained
Dr Rui Wang-Sattler from the institute of epidemiology II of the
Helmholtz Zentrum Minchen.
“Until now the exact mechanism is unclear. Thus, we want to
continue our contribution to its decryption”, added co-study author Dr Stefan
Brandmaier in a paper published in the journal Diabetes Care.
Metformin is the oldest and most frequently used oral
anti-diabetes drug.
It affects blood fat levels via AMPK signalling pathway. The AMP
activated protein kinase (AMPK) is an enzyme that determines the energy status
of the cell.
In case, the energy status is low, AMPK stops energy consuming
processes like the synthesis of cholesterol or fatty acids.
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