1.Prevalence of Insulin Receptor Substrate-1 Gene (G972R) Polymorphism, Insulin Resistance, and Determination of β-Cell Function among overweight and obese persons with Type 2 Diabetes Mellitus
Thae Nu Htwe ; Ohnmar Myint Thein ; Saw Wut Hmone ; Myat Thandar
Journal of the ASEAN Federation of Endocrine Societies 2021;36(1):25-30
Background:
Type 2 diabetes mellitus (T2DM) is the most common metabolic disorder and its pathogenesis is characterized by a combination of peripheral insulin resistance and impaired insulin secretory capacity of pancreatic β cell. Genetic predisposition interacts with environmental factors including diet, physical activity, and age leading to the development of diabetes.
Objective:
To determine the proportion of overweight and obese persons with type 2 diabetes and to compare the fasting blood sugar, fasting serum insulin, insulin resistance and β-cell function in G972R carrier and non-carrier overweight and obese persons with type 2 diabetes.
Methodology:
One hundred overweight and obese patients with T2DM were recruited from persons with diabetes attending the Diabetes Outpatient Department of Yangon General Hospital. History taking and physical examination were done and blood samples were collected. Plasma glucose level was determined by the glucose oxidase method and fasting serum insulin was measured by enzyme linked immunoassay (ELISA) kit method. Polymerase chain reaction and Restriction Fragment Length Polymorphism were done for genetic polymorphism.
Results:
Among 100 overweight and obese subjects with T2DM, 81 patients were of homozygous (G/G) genotype, 18 patients were of heterozygous (G/A) and only one patient of homozygous (A/A) genotype. There was no statistically significant difference in the proportion of genotypes between overweight and obese subjects with T2DM.There was no significant difference in fasting blood sugar (FBS), fasting serum insulin, HOMA-IR, β-cell function, lipid parameters between IRS-1 (G972R) carriers and non-carriers. There is significant negative correlation between insulin resistance and TG level (r2=0.0529, p=0.01).
Conclusion
It was concluded that IRS-1 G972R polymorphism was not important in insulin resistance, β-cell function and lipid parameters in overweight and obese T2DM. There could be a number of candidate genes in the pathophysiology of diabetes mellitus, genetic sequencing of IRS-1 and other genes in the insulin signaling pathway, and finding out the alteration in their genetic patterns would provide clues for the association of the site-specific polymorphisms of these genes with insulin resistance in T2DM.
Insulin Resistance
2.Alternate careers for medical graduates and house officers in Malaysia
Amaramalar Selvi Naicker ; Vinoshini Devi A/P Kailaivasan ; Brenda Saria Yuliawiratman ; Arvindran Alaga ; Kevin Ng Wei Shan ; Manimalar Selvi Naicker ; Ohnmar Htwe
The Medical Journal of Malaysia 2021;76(2):183-189
Introduction: In recent years, many unresolved issues
pertaining to house officers in Malaysia have led to a longer
waiting time and a ‘glut’ of medical graduates with a
surprising 20% dropout amongst those who join the
housemanship programme. This appears to reflect the
changing times, mindsets and work expectations of
millennials who comprise this cohort reflecting a need to
consider possibilities of career shifts especially so in these
uncertain times. This study explores the perceptions,
awareness and interest in alternative career options
amongst recent graduates and house officers.
Materials and Methods: This was a study done between 2018
and 2019 using a questionnaire which was shared on
various social platforms. Data analysis was done using
Excel spreadsheet.
Results: A total of 450 house officers and 657 medical
graduates responded. Expectedly 66.8% claimed lifelong
passion whilst another 12.1% claimed family influence as
their reason to do medicine. Most were aware of their career
challenges and 40% of them were keen to consider career
change and reskilling indicating a possible shift from
traditional expectations of a medical career.
Conclusion: Whilst medicine is often considered a true
calling, current challenges will require mental and emotional
flexibility to explore other career opportunities. Thus,
engagement programmes should be directed at medical
graduates and house officers to identify and support those
open to career transitions. This will help address current
issues of internship bottleneck and rising dropout rates
amongst internees. Early career change engagements will
give them insight into their true career goals whilst opening
up opportunities for those who wish to change.
3.Factors Associated With Pressure Ulcer Risk Among Spinal Cord Injury Adults in Kuala Lumpur, Malaysia: A Community-based Study
Yee Xing You ; Jing Yi Foo ; Wani Aqilah Mustafa ; Rohana Hussain ; Amaramalar Selvi Naicker ; Ohnmar Htwe ; Zahara Abdul Manaf ; Suzana Shahar
Malaysian Journal of Medicine and Health Sciences 2021;17(No.3):177-184
Introduction: Pressure ulcers (PUs) are a leading health problem among spinal cord injury(SCI) patients. Therefore,
this comprehensive study was aimed at determining the association between potential factors and the occurrence
of PUs among SCI adults in community settings. Methods: A cross-sectional study was conducted among adults
with SCI aged 18 years and above from five selected locations in Kuala Lumpur, Malaysia. The study was carried
out through interviews based on validated questionnaires such as the Dietary History Questionnaire (DHQ), Spinal
Nutrition Screening Tool (SNST), Physical Activity Scale for Individuals with Physical Disabilities (PASIPD), Barthel
Index for Activities of Daily Living (ADL), and Instrumental Activities of Daily Living (IADL). Estimated weight and
height were obtained using recumbent formula. The stages of their PUs were assessed based on National Pressure
Ulcer Advisory Panel (NPUAP) grading system. Results: A total of 40 subjects participated in the study, 25% of
whom were having PUs. Their nutritional inadequacies were identified, whereby 90%, 70% and 85.5% of them
were receiving below their daily requirement of energy, carbohydrate and protein, respectively. The fat and sodium
intakes of 55% of them were above the Malaysian Recommended Nutrient Intakes(RNI). It was successfully found
that physical activity could decrease the risk of PUs(R2=0.654, OR=0.310, p<0.05). Conclusion: Overall, 25% of
the subjects had PUs that were associated with physical inactivity. The majority of the subjects did not meet their
nutrient requirements. Therefore, there is a need for increased physical activity and improved nutrient intake in order
to reduce the risk of pressure ulcers among SCI adults in communities.