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  • Sarcopenic obesity...

Sarcopenic obesity associated with cognitive impairment and dementia among elderly

Written By : Dr. Kamal Kant Kohli Published On 2022-06-02T09:30:45+05:30  |  Updated On 2 Jun 2022 12:59 PM IST
Sarcopenic obesity associated with cognitive impairment and dementia among elderly
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Obesity, an increasingly prevalent lifestyle disease, often occurs along with poor muscle mass. This condition, called sarcopenic obesity, is evaluated based on the patients' body mass index (BMI) and handgrip strength. Interestingly, sarcopenic obesity is known to increase the risk of cognitive impairment. Dementia, a cognitive condition where memory, thinking and social abilities progressively decline, is known to significantly affect the quality of life in elderly people. Is this condition associated with sarcopenic obesity?

In a new study published in Clinical Nutrition, a group of researchers led by Dr. Yoshifumi Tamura of Juntendo University, Japan, explored this very question. "If the association between sarcopenic obesity and dementia is established, appropriate preventive measures can be taken to reduce the occurrence of this condition and the risk of dementia in elderly patients," says Dr. Tamura, stressing on the importance of their study. This study was made available online on March 16, 2022 and was published in Volume 41 Issue 5 of the journal on May 01, 2022.

In the study, the researchers recruited 1615 older Japanese adults aged 65 to 84 years participating in the Bunkyo Health Study. The researchers divided the subjects into four groups based on their sarcopenia and obesity status: those with obesity, those with sarcopenia, those with sarcopenic obesity, and those without obesity or sarcopenia (control).

They studied the link between various mental processes, sarcopenia, and obesity status. Sarcopenia or poor muscle strength was determined based on a handgrip strength of less than 28 kg in men and 18 kg in women, while obesity status was given to patients with a BMI greater than 25 kg/m2. Two assessment methods were performed to establish the presence of mild cognitive impairment (MCI) and dementia. A score of less than 22 points on the Montreal cognitive assessment and less than 23 points on the Mine-Mental State Examination were used to confirm MCI and dementia respectively.

They found that 59.4% of the population had neither obesity nor sarcopenia, 21.2% had obesity, 14.6% had sarcopenia, and 4.7% of the population had sarcopenic obesity. The participants with sarcopenic obesity had the greatest rate of MCI and dementia, followed by those with sarcopenia, obesity, and finally the control group.

When the team ran multivariate analyses to check for statistically relevant associations, they found that sarcopenic obesity was independently associated with an increased prevalence of MCI and dementia compared with the absence of sarcopenia and obesity. The study also showed that sarcopenia is significantly associated with dementia in women, but not in men.

"This study clearly demonstrates that sarcopenic obesity, defined by the combination of BMI and hand grip strength is associated with MCI and dementia among Japan's elderly people," says Dr. Tamura.

For further reference log on to:

http://dx.doi.org/10.1016/j.clnu.2022.03.017

Clinical Nutritionobesitydementiabody mass indexBMIBMI patientscognitive impairmentsarcopenic obesitysocial abilitiessarcopenia
Source : Clinical Nutrition
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751

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