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"Tandon, Nikhil"
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Lifetime risk of diabetes in metropolitan cities in India
by
Anjana, Ranjit M
,
Kinra Sanjay
,
Clarke, Lynda
in
Diabetes
,
Diabetes mellitus
,
Life expectancy
2021
Aims/hypothesisWe aimed to estimate the lifetime risk of diabetes and diabetes-free life expectancy in metropolitan cities in India among the population aged 20 years or more, and their variation by sex, age and BMI.MethodsA Markov simulation model was adopted to estimate age-, sex- and BMI-specific lifetime risk of developing diabetes and diabetes-free life expectancy. The main data inputs used were as follows: age-, sex- and BMI-specific incidence rates of diabetes in urban India taken from the Centre for Cardiometabolic Risk Reduction in South Asia (2010–2018); age-, sex- and urban-specific rates of mortality from period lifetables reported by the Government of India (2014); and prevalence of diabetes from the Indian Council for Medical Research INdia DIABetes study (2008–2015).ResultsLifetime risk (95% CI) of diabetes in 20-year-old men and women was 55.5 (51.6, 59.7)% and 64.6 (60.0, 69.5)%, respectively. Women generally had a higher lifetime risk across the lifespan. Remaining lifetime risk (95% CI) declined with age to 37.7 (30.1, 46.7)% at age 60 years among women and 27.5 (23.1, 32.4)% in men. Lifetime risk (95% CI) was highest among obese Indians: 86.0 (76.6, 91.5)% among 20-year-old women and 86.9 (75.4, 93.8)% among men. We identified considerably higher diabetes-free life expectancy at lower levels of BMI.Conclusions/interpretationLifetime risk of diabetes in metropolitan cities in India is alarming across the spectrum of weight and rises dramatically with higher BMI. Prevention of diabetes among metropolitan Indians of all ages is an urgent national priority, particularly given the rapid increase in urban obesogenic environments across the country.
Journal Article
Vegetarianism and cardiometabolic disease risk factors: Differences between South Asian and US adults
2016
Cardiometabolic diseases are increasing disproportionately in South Asia compared with other regions of the world despite high levels of vegetarianism. This unexpected discordance may be explained by differences in the healthfulness of vegetarian and non-vegetarian diets in South Asia compared with the United States. The aim of this study was to compare the food group intake of vegetarians with non-vegetarians in South Asia and the United States and to evaluate associations between vegetarianism and cardiometabolic disease risk factors (overweight/obesity, central obesity, diabetes, hypertension, high triacylglycerols, high low-density lipoprotein, low high-density lipoprotein, and high Framingham Heart Score).
Using cross-sectional data from adults (age 20–69 y) in South Asia (Centre for Cardiometabolic Risk Reduction in South-Asia [CARRS] 2010–2011; N = 15 665) and the United States (National Health and Nutrition Examination Survey 2003–2006; N = 2159), adherence to a vegetarian diet was assessed using food propensity questionnaires. Multivariable logistic regression was used to estimate odds ratios and predicted margins (e.g., adjusted prevalence of the outcomes).
One-third (33%; n = 4968) of adults in the South Asian sample were vegetarian compared with only 2.4% (n = 59) in the US sample. Among South Asians, vegetarians more frequently ate dairy, legumes, vegetables, fruit, desserts, and fried foods than non-vegitarians (all P < 0.05). Among Americans, vegetarians more frequently ate legumes, fruit, and whole grains, and less frequently ate refined cereals, desserts, fried foods, fruit juice, and soft drinks than non-vegetarians (all P < 0.05). After adjustment for confounders (age, sex, education, tobacco, alcohol, and also city in CARRS), South Asian vegetarians were slightly less frequently overweight/obese compared with non-vegetarians: 49% (95% confidence interval [CI], 45%–53%) versus 53% (95% CI, 51%–56%), respectively; whereas US vegetarians were considerably less frequently overweight/obese compared with non-vegetarians: 48% (95% CI, 32%–63%) versus 68% (95% CI, 65%–70%), respectively. Furthermore, US vegetarians were less likely to exhibit central obesity than non-vegetarians: 62% (95% CI, 43%–78%) versus 78% (95% CI, 76%–80%), respectively.
There is greater divergence between vegetarian and non-vegetarian diets in the United States than in South Asia, and US vegetarians have more consistently healthier food group intakes than South Asian vegetarians. Vegetarians in both populations have a lower probability of overweight/obesity compared with non-vegetarians. The strength of this association may be stronger for US vegetarian diets, which were also protective against central obesity.
•To our knowledge, this was the first study to explore vegetarian diets in both the United States and South Asia.•We used large representative samples and defined vegetarianism with food propensity data.•Vegetarians had a lower probability of overweight/obesity in both populations.•The strength of this association may be stronger for US vegetarian diets.•Results inform lifestyle interventions and policies for chronic disease prevention.
Journal Article
Genome-wide association study of blood lipids in Indians confirms universality of established variants
by
Giri, Anil K.
,
Basu, Analabha
,
Tandon, Nikhil
in
Adipose tissue
,
Adult
,
Asian Continental Ancestry Group - genetics
2019
Lipids foster energy production and their altered levels have been coupled with metabolic ailments. Indians feature high prevalence of metabolic diseases, yet uncharacterized for genes regulating lipid homeostasis. We performed first GWAS for quantitative lipids (total cholesterol, LDL, HDL, and triglycerides) exclusively in 5271 Indians. Further to corroborate our genetic findings, we investigated DNA methylation marks in peripheral blood in Indians at the identified loci (N = 233) and retrieved gene regulatory features from public domains. Recurrent GWAS loci-CELSR2, CETP, LPL, ZNF259, and BUD13 cropped up as lead signals in Indians, reflecting their universal applicability. Besides established variants, we found certain unreported variants at sub-genome-wide level-QKI, REEP3, TMCC2, FAM129C, FAM241B, and LOC100506207. These variants though failed to attain GWAS significance in Indians, but largely turned out to be active CpG sites in human subcutaneous adipose tissue and showed robust association to two or more lipid traits. Of which, QKI variants showed significant association to all four lipid traits and their designated region was observed to be a key gene regulatory segment denoting active transcription particularly in human subcutaneous adipose tissue. Both established and novel loci were observed to be significantly associated with altered DNA methylation in Indians for specific CpGs that resided in key regulatory elements. Further, gene-based association analysis pinpointed novel GWAS loci-LINC01340 and IQCJ-SCHIP1 for TC; IFT27, IFT88, and LINC02141 for HDL; and TEX26 for TG. Present study ascertains universality of selected known genes and also identifies certain novel loci for lipids in Indians by integrating data from various levels of gene regulation.
Journal Article
Prevalence of non‐alcoholic fatty liver disease and factors associated with it in Indian women with a history of gestational diabetes mellitus
by
Kubihal, Suraj
,
Kandasamy, Devasenathipathy
,
Gupta, Yashdeep
in
Adult
,
Body mass index
,
Body weight
2021
Aims/Introduction This study aims to evaluate the prevalence of and factors associated with non‐alcoholic fatty liver disease (NAFLD) in Indian women with prior gestational diabetes mellitus (GDM) diagnosed using International Association of Diabetes and Pregnancy Study Groups (IADPSG) criteria. Materials and Methods This cross‐sectional study (2018–2019) enrolled women with and without prior GDM. Study participants underwent detailed assessments, including relevant medical, obstetric and demographic details; 75‐g oral glucose tolerance test with glucose and insulin estimation at 0, 30 and 120 min; and other relevant biochemical and anthropometric measurements. NAFLD status was defined by ultrasonography. Results We evaluated a total of 309 women (201 and 108 with and without prior GDM, respectively) at a mean age of 31.9 ± 5.0 years and median of 16 months (interquartile range 9–38 months) following the index delivery. The prevalence of NAFLD was significantly higher in women with prior GDM (62.7% vs 50.0%, P = 0.038; grade 2 and 3 disease, 13.9% vs 6.5%). On logistic regression analysis (fully adjusted model), the odds of NAFLD were 2.11‐fold higher in women with prior GDM (95% confidence interval 1.16–3.85, P = 0.014). Overweight/obesity, metabolic syndrome, prediabetes and homeostasis model of assessment of insulin resistance (a measure of insulin resistance) were positively associated with NAFLD, whereas the Matsuda index (a measure of insulin sensitivity) showed a negative association with NAFLD. Conclusions The prevalence of NAFLD is high in women with prior GDM. Such women also have a high burden of cardiometabolic risk factors. Future studies should evaluate the intermediate and long‐term hepatic and cardiovascular risk, and the impact of lifestyle interventions in reducing morbidity in such women. This study evaluated the prevalence and risk factors of non‐alcoholic fatty liver disease in Indian women with prior gestational diabetes mellitus diagnosed using International Association of Diabetes and Pregnancy Study Groups criteria. Ultrasonography of abdomen was used to define non‐alcoholic fatty liver disease status. Prevalence of non‐alcoholic fatty liver disease was significantly higher in women with prior gestational diabetes mellitus (62.7% vs 50.0%, P = 0.038; grade 2 and 3 disease, 13.9% vs 6.5%).
Journal Article
Outcomes following laparoscopic adrenalectomy: Experience of more than two decades at a tertiary care centre
by
Subramaniam, Rajeshwari
,
Bansal, Virinder Kumar
,
Agarwal, Keshav
in
adrenalectomy
,
Health aspects
,
laparoscopic
2025
Abstract
Introduction:
Laparoscopic transperitoneal adrenalectomy was first described by Gagner M et al. Here, we present our experience of more than two decades of laparoscopic adrenalectomy performed in a single surgical unit at a tertiary care centre.
Patients and Methods:
A prospectively collected database of patients undergoing laparoscopic adrenalectomy from December 1994 to May 2020 was analysed retrospectively. The demographic profile, details of clinical workup and laboratory parameters were recorded in a pre-structured pro forma. Functional workup and anatomical imaging were performed for all the patients. Patients were taken up for surgery after adequate pre-operative optimisation using a multidisciplinary approach. All the patients were operated by a single surgical team of experienced laparoscopic surgeons.
Results:
A total of 158 patients underwent laparoscopic transperitoneal adrenalectomy. The majority patients were females (64.5%). The median tumour size was 5 cm (range, 1-18 cm). The diagnosis in the majority of the patients was pheochromocytoma (56.3%). The mean operative time was 80 min (range: 45-210 min). The most common complication was bleeding in 6 (3.7%) patients, which required laparotomy. The median duration of post-operative hospital stay was 3 days (range: 1-13). There was no 30-day mortality. The mean follow-up period was 15 months (range: 6-72 months), during which two patients developed local recurrence.
Conclusion:
The advantages of laparoscopic surgery are well established and have been extensively explored for the management of adrenal lesions. A multidisciplinary approach to management, consisting of endocrinologists, surgeons and anaesthesiologists is preferred. Pre-operative evaluation, optimisation and accurate selection of patients are crucial for successful laparoscopic adrenalectomy.
Journal Article
Prevalence and Predictors of Osteoporosis/BMD Below Expected Range for Age in Pheochromocytoma/Paraganglioma and BMD, TBS Change Post-Operatively: A Prospective Cohort Study
by
Kumar, Rajeev
,
Kandasamy, Devasenathipathy
,
Jyotsna, Viveka P
in
Body weight
,
Bone densitometry
,
Bones
2023
Context:
Pheochromocytomas/paragangliomas (PPGLs) have recently been shown to be associated with lower bone mineral density (BMD) and trabecular bone score as compared to healthy controls suggesting low bone mineral concentration and disrupted bone microarchitecture. There is paucity of data on prevalence and clinical predictors of low BMD/osteoporosis in PPGL from India and the extent of change in BMD post-operatively.
Aims:
This study aimed to find prevalence of low BMD/osteoporosis and trabecular bone score (TBS)-adjusted FRAX score in subjects with PPGL and to see the post-operative change in BMD and TBS at follow-up.
Material and Methods:
32 consecutively diagnosed adult cases with PPGL were enrolled. Although the provisional diagnosis of PPGL was made based on imaging consistent with PPGL supported by biochemical evidence of catecholamine excess, its confirmation was made histopathologically before final analysis.
Results:
We found significantly low average BMD T-score/Z-score at spine, hip or wrist. Osteoporosis was evident in 87.5% of subjects (nine of 11 post-menopausal women or men >50 years of age) and BMD below the expected range for age in 42.9% of subjects (nine of 21 pre-menopausal women or men <50 years of age) by International Society for Clinical Densitometry criteria.
Conclusions:
87% of older subjects with PPGL had osteoporosis while 43% of younger subjects had BMD below expected range for age (Z-score ≤-2.0), more at lumbar spine than at hip. Decreased body weight was associated with osteoporosis in older or Z-score ≤-2.0 in younger subjects. There was no significant change in BMD and TBS scores at a median of four months post-operatively.
Journal Article
Continuous glucose monitoring system profile of women diagnosed as gestational diabetes mellitus by International Association of Diabetes and Pregnancy Study Groups criteria and labeled as normoglycemic by alternate criteria in early pregnancy
by
Sharma, Jai B
,
Gupta, Yashdeep
,
Kachhawa, Garima
in
Blood glucose
,
Blood pressure
,
Body mass index
2022
Aims/Introduction We aimed to evaluate and compare continuous glucose monitoring system (CGMS)‐based glycemic parameters in women in early pregnancy (<20 weeks of gestation) who were classified as: (i) gestational diabetes mellitus (GDM) by the International Association of Diabetes and Pregnancy Study Groups (IADPSG), but normoglycemia by alternate (UK National Institute for Health and Care Excellence, Canadian Diabetes Association and Diabetes in Pregnancy Study group of India) criteria; and (ii) normoglycemia by both (IADPSG and alternate) criteria. Material and Methods In this cross‐sectional study, eligible women underwent standard 75‐g oral glucose tolerance test, followed by the placement of a CGMS. Glycemia‐related parameters were calculated using the standard approach for CGMS data in pregnancy. Results We enrolled 96 women at 14.0 ± 3.2 weeks of gestation. Of the women diagnosed as GDM by IADPSG criteria, 34.2%, 26.3% and 44.7% were classified as normoglycemic by UK National Institute for Health and Care Excellence, Canadian Diabetes Association and Diabetes in Pregnancy Study group of India criteria, respectively. Mean 1‐h postprandial glucose and time above range were significantly higher in women who were GDM by IADPSG, but normoglycemia by Canadian Diabetes Association criteria, compared with women with normoglycemia using both criteria. Similarly, mean 1‐h postprandial glucose, 2‐h postprandial glucose, peak postprandial glucose, 1‐h postprandial glucose excursion and time above range were significantly higher in women who were not identified as GDM by the UK National Institute for Health and Care Excellence criteria. Finally, women missed by the Diabetes in Pregnancy Study group of India criteria had significantly higher mean 1‐h postprandial glucose, 2‐h postprandial glucose, peak postprandial glucose, postprandial glucose excursion, 24‐h glucose and time above range parameters. Conclusions More than one‐quarter of women diagnosed as GDM by IADPSG criteria are not identified by alternate criteria. Such women are significantly different from normoglycemic women in terms of several CGMS‐based glycemic parameters of clinical significance.
Journal Article
Health, psychosocial, and economic impacts of the COVID-19 pandemic on people with chronic conditions in India: a mixed methods study
2021
Background
People with chronic conditions are disproportionately prone to be affected by the COVID-19 pandemic but there are limited data documenting this. We aimed to assess the health, psychosocial and economic impacts of the COVID-19 pandemic on people with chronic conditions in India.
Methods
Between July 29, to September 12, 2020, we telephonically surveyed adults (
n
= 2335) with chronic conditions across four sites in India. Data on participants’ demographic, socio-economic status, comorbidities, access to health care, treatment satisfaction, self-care behaviors, employment, and income were collected using pre-tested questionnaires. We performed multivariable logistic regression analysis to examine the factors associated with difficulty in accessing medicines and worsening of diabetes or hypertension symptoms. Further, a diverse sample of 40 participants completed qualitative interviews that focused on eliciting patient’s experiences during the COVID-19 lockdowns and data analyzed using thematic analysis.
Results
One thousand seven hundred thirty-four individuals completed the survey (response rate = 74%). The mean (SD) age of respondents was 57.8 years (11.3) and 50% were men. During the COVID-19 lockdowns in India, 83% of participants reported difficulty in accessing healthcare, 17% faced difficulties in accessing medicines, 59% reported loss of income, 38% lost jobs, and 28% reduced fruit and vegetable consumption. In the final-adjusted regression model, rural residence (OR, 95%CI: 4.01,2.90–5.53), having diabetes (2.42, 1.81–3.25) and hypertension (1.70,1.27–2.27), and loss of income (2.30,1.62–3.26) were significantly associated with difficulty in accessing medicines. Further, difficulties in accessing medicines (3.67,2.52–5.35), and job loss (1.90,1.25–2.89) were associated with worsening of diabetes or hypertension symptoms. Qualitative data suggest most participants experienced psychosocial distress due to loss of job or income and had difficulties in accessing in-patient services.
Conclusion
People with chronic conditions, particularly among poor, rural, and marginalized populations, have experienced difficulties in accessing healthcare and been severely affected both socially and financially by the COVID-19 pandemic.
Journal Article
Managing early-onset type 2 diabetes in the individual and at the population level
by
Misra, Shivani
,
Goyal, Alpesh
,
Armocida, Benedetta
in
Activities of daily living
,
Adult
,
Adults
2025
Early-onset type 2 diabetes (defined as type 2 diabetes diagnosed in people aged <40 years) is an increasingly prevalent condition with a more aggressive disease trajectory than late-onset type 2 diabetes. It is associated with accelerated microvascular and macrovascular complications, reduced life expectancy, and adverse pregnancy outcomes. Despite its rising incidence, global management strategies have mostly been extrapolated from studies in older adults with limited evidence specific to younger populations. In this Series paper, we aim to highlight the unique challenges in the management of early-onset type 2 diabetes and why current models of care are inadequate. We emphasise that early-onset type 2 diabetes necessitates proactive and combination treatment strategies to address weight, faster β-cell decline, worse insulin resistance, and rapidly progressing hyperglycaemia compared with late-onset type 2 diabetes. However, there is minimal evidence on how best to address these factors and clinical inertia risks contributing to glycaemic burden. Cardiovascular risk assessment tools underestimate long-term risk, contributing to low use of statin and antihypertensive therapy. Reproductive health remains a key concern, yet preconception and pregnancy care are inadequate, with low adherence to recommended interventions. Health-care systems are not optimised to address the distinct needs of young adults, and gaps in transitional care (from paediatric to adult services) contribute to disengagement and adverse outcomes. Addressing these challenges requires tailored management strategies that consider the unique metabolic and psychosocial factors in this population. In this Series paper, we summarise the evidence base for the management of early-onset type 2 diabetes, key evidence gaps, and discuss the multisectoral and transdisciplinary elements needed to achieve population-level prevention to reverse these concerning trends.
Journal Article
Change in cardiometabolic risk factors among Asian Indian adults recruited in a mHealth-based diabetes prevention trial
by
Jena, Sidhant
,
Ranjani, Harish
,
Muralidharan, Shruti
in
Diabetes
,
Original Research
,
Risk factors
2021
Objective
India is experiencing an increasing prevalence of type 2 diabetes and cardiovascular diseases. Mobile health technology may be a strategy to reduce the risk of cardiometabolic disorders. This paper reports on the effect of a mobile health intervention on cardiometabolic risk factors.
Methods
The mobile health and diabetes intervention was a 12-week reality television-based mobile health program application delivered via videos, short message service and infographics through a smartphone application followed-up weekly by health coach calls. mobile health and diabetes was conducted in a randomized control trial mode randomized controlled trial methodology in three Indian cities (Chennai, Bengaluru and New Delhi) with participants recruited via community screening events. This paper looks at the pre–post changes in cardiometabolic risks among the participants and the place of demography in influencing these.
Results
The mobile health and diabetes intervention group experienced a small reduction in waist circumference (1.8 cm) compared to the control group (0.5 cm, p < 0.05) and a greater decrease in systolic blood pressure (2.7 mmHg) compared to the control group (p < 0.05). The improvements in cardiometabolic risk factors were more pronounced in individuals with obesity, although overall effects were very modest
Conclusions
Cardiometabolic risk factors can be reduced with a mobile health application using human coaching, especially in obese individuals, but the improvements are small. To be more effective and clinically meaningful, intensive engagement with the participants is probably required.
Journal Article