This site is intended for Healthcare Professionals only.

‘Gut bacteria may have a role in diabetes’

Date:

Share post:

One type of bacteria found in the gut may contribute to the development of Type 2 diabetes, while another may protect from the disease, according to early results from an ongoing, prospective study led by investigators at Cedars-Sinai.

The study, published in the peer-reviewed journal Diabetes, found people with higher levels of a bacterium called Coprococcus tended to have higher insulin sensitivity, while those whose microbiomes had higher levels of the bacterium Flavonifractor tended to have lower insulin sensitivity.

Mark Goodarzi, the director of the Endocrine Genetics Laboratory at Cedars-Sinai in Los Angeles, California, is leading an ongoing study that is following and observing people at risk for diabetes to learn whether those with lower levels of these bacteria develop the disease.

“The big question we’re hoping to address is: Did the microbiome differences cause diabetes, or did diabetes cause the microbiome differences?” said Goodarzi, who is the senior author of the study and principal investigator of the multicenter study called Microbiome and Insulin Longitudinal Evaluation Study (MILES).

Investigators involved in MILES have been collecting information from participating Black and non-Hispanic white adults between 40 and 80 years of age since 2018. An earlier cohort study from the MILES trial found that birth by cesarean section is associated with a higher risk of developing prediabetes and diabetes.

For the most recent study to come out of this ongoing trial, investigators analyzed data from 352 people without known diabetes who were recruited from the Wake Forest Baptist Health System in Winston-Salem, North Carolina.

Study participants were asked to attend three clinic visits and collect stool samples prior to the visits. Investigators analysed data collected at the first visit. They conducted genetic sequencing on the stool samples, for example, to study the participants’ microbiomes, and specifically look for bacteria that earlier studies have found to be associated with insulin resistance.

Each participant also filled out a diet questionnaire and took an oral glucose tolerance test, which was used to determine the ability to process glucose.

Investigators found 28 people had oral glucose tolerance results that met the criteria for diabetes. They also found that 135 people had prediabetes, a condition in which a person’s blood sugar levels are higher than normal but not high enough to meet the definition of diabetes.

The research team analysed associations between 36 butyrate-producing bacteria found in the stool samples and a person’s ability to maintain normal levels of insulin. They controlled for factors that could also contribute to a person’s diabetes risk, such as age, sex, body mass index and race.

Coprococcus and related bacteria formed a network of bacteria with beneficial effects on insulin sensitivity. Despite being a producer of butyrate, Flavonifractor was associated with insulin resistance; prior work by others have found higher levels of Flavonifractor in the stool of people with diabetes.

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Current Issue December 2023

Related articles

Pharmacists critical in helping people to practice self-care with confidence: survey

People are opting to visit pharmacists for self-care and are conscious of the positive impact it can have...

Sanofi Consumer Healthcare signs supply agreements with two wholesalers

Opella Healthcare, trading as Sanofi Consumer Healthcare, said it has entered into a dual partnership agreement with Alliance...

Sigma 2024 Conference: Rishi Sunak sends best wishes to all the participants

The 14th Annual Community Pharmacy Conference by Sigma Pharmaceuticals began on Monday, 25 February at Sun City, South...

Peak Pharmacy branches in Derbyshire and Staffordshire find new owners

‘There is a resurgence in demand for pharmacies that dispense below 4,000 items’ Independent pharmacy chain, Peak Pharmacy, has...