Abdominal obesity and metabolic syndrome in South Asians: prevention and management

Global Trends and Cross-Country Inequalities in Stroke and Subtypes Attributable to High Body Mass Index From 1990 to 2021

BACKGROUND

Stroke is a major global cause of death and disability, with high body mass index (HBMI) as a key modifiable risk factor. Understanding HBMI-attributable stroke burden is crucial for effective prevention.

METHODS AND RESULTS

Using Global Burden of Disease 2021 data, we analyzed disability-adjusted life years and mortality from stroke and its subtypes (ischemic stroke, intracerebral hemorrhage, subarachnoid hemorrhage) attributable to HBMI at global, regional, and national levels from 1990 to 2021. We conducted decomposition, frontier, inequality, and predictive analyses to assess epidemiological trends and future projections up to 2035. Despite country-specific variations in disability-adjusted life years and mortality, the global burden of stroke and its subtypes attributable to HBMI has increased from 1990 to 2021. Frontier analysis indicated that countries with higher sociodemographic index were expected to own lower age-standardized rates for stroke and its subtypes attributable to HBMI. Decomposition analysis revealed that population growth and aging were the primary contributors to the rise. Significant cross-country disparities remained, although inequality analysis showed a decline in SDI-related differences over time. The projected annual rise in disability-adjusted life years and mortality from 2021 to 2035 suggested ongoing significant challenges in stroke control and management in the coming decades.

CONCLUSION

The global health challenge posed by the increasing burden of stroke and its subtypes attributable to HBMI remains significant, especially in low- and middle-sociodemographic index regions. Targeted lifestyle modifications and policy interventions are crucial for reducing HBMI and mitigating stroke burden, warranting special attention from policymakers in high-burden regions.

Association between adult body shape index and serum levels of the anti-aging protein Klotho in adults: a population-based cross-sectional study of the NHANES from 2007 to 2016

Purpose

Adult body shape index (ABSI) is widely recognized as a reliable indicator for evaluating body fat distribution and dysfunction. However, the relationship between ABSI and Klotho protein, known for its anti-aging biological function, has not yet been investigated. Therefore, the aim of this study was to assess the correlation between ABSI and serum Klotho levels in adults residing in the United States.

Methods

A cross-sectional study of participants was conducted based on the 2007-2016 National Health and Nutrition Examination Survey. Visceral adiposity was determined using the ABSI score, and Klotho protein concentration was measured using an enzyme-linked immunosorbent assay kit. Multiple regression models were used to estimate the association between ABSI and Klotho protein after adjusting for several potential confounding variables. Subgroup analysis of ABSI and Klotho was performed using restricted cubic splines.

Result

A total of 11,070 adults were eligible for participation, with a mean ABSI of 8.28 ± 0.45 and a mean Klotho protein concentration of 853.33 ± 309.80 pg/mL. Multivariate regression analysis showed that participants with high ABSI scores had lower serum Klotho protein concentrations. When ABSI was divided into quartiles, after full adjustment, Klotho protein levels were lower in participants in the fourth fully adjusted ABSI quartile (Q4: -0.352 pg/ml) than in those in the lowest quartile (Q1) (P<0.0001).

Conclusion

There was a negative linear correlation between ABSI score and serum Klotho concentration. Higher ABSI was associated with lower serum Klotho concentrations; however, this association did not seem to be significant in subjects with BMI ≥30 kg/m2.Further study is needed to verify the causality of this association and elucidate the underlying mechanisms.

Risk Factors Associated With General and Abdominal Obesity Among South Asian Minorities in Hong Kong

South Asians have become a sizable ethnic minority in Hong Kong with unique health and social needs often being overlooked. Elevated obesity risk among South Asians has been highlighted in high-income Western settings; however, relevant local evidence is scarce. This cross-sectional study aims to explore the obesity prevalence and related risk factors among South Asians in Hong Kong. Between June 2022 and February 2023, 535 South Asian adults were recruited via territory-wide health outreach services, and completed a survey and anthropometric measurements on height, weight, and waist circumference. In our female-dominated sample (84.1% female; mean age = 41.0 ± 12.3 years), the observed prevalence of general obesity (body mass index [BMI] ≥ 27.5 kg/m2 for South Asians) and abdominal obesity (waist-to-height ratio [WHtR] > 50%) were 60.2% and 89.4%, respectively. Results from multivariable linear regressions showed that mean BMI and WHtR were significantly higher among women and Pakistani individuals (and Nepalese individuals for BMI only) but lower among better educated and employed respondents. Apart from age, household size, and marital status as common risk factors, having a healthier diet and higher physical activity level were also associated with lower WHtR. Notably, the associations of female gender and Pakistani ethnicity were attenuated after adjustments for socioeconomic and lifestyle factors. In conclusion, there was a high prevalence of obesity in South Asian participants in this study. The identified risk and protective factors could inform targeted services and community-based weight management programs to mitigate obesity and its associated cardiometabolic risks in this fast-growing but vulnerable community.

Accumulated subcutaneous fat in abdomen is associated with long COVID-19 symptoms among non-hospitalized patients: a prospective observational study

Introduction

Long COVID-19 symptoms may have a variety of potential overlapping causes. In this study, we aimed to investigate the potential correlation between abdominal adipose tissue and long COVID-19 symptoms in non-hospitalized patients in China.

Methods

This is a prospective observational study. 424 subjects, recovered from COVID-19 for 2-4 weeks, were enrolled and 408 subjects were finished the follow-up investigation at baseline, 8th week and 12th week. Physical measurements were collected. Kaplan-Meier analysis and cox regression analysis were carried out to assess the correlation.

Results

A total of 72 subjects reported the long COVID-19 symptoms. The adjusted Kaplan-Meier analysis and Cox regression analysis revealed a significant correlation with accumulated subcutaneous fat (SFA ≥ 2.0 dm2) and the long COVID-19 symptoms (HR = 2.63, P < 0.001 for male, HR = 1.52, P = 0.048 for female). However, overweight and central obesity showed positive correlation only in women.

Discussion

This study suggested that accumulated subcutaneous fat in abdomen (SFA ≥ 2.0 dm2) was an important positive factor associated with long COVID-19 symptoms among Chinese non-hospitalized patients. Large investigation and prospective studies are needed to validate the correlation in the future.

Comparison of Incidence of Metabolic Syndrome and Five Obesity- and Lipid-Linked Indicators for Predicting Metabolic Syndrome Among Normal-Weight and Overweight Adults

Purpose

Metabolic syndrome (MetS) is an increasingly prevalent issue in China's public health landscape. Few studies have investigated the metabolic syndrome (MetS) in overweight people. We proposed to analyze and contrast the occurrence of MetS in normal-weight and overweight individuals and identify potential indicators for forecasting MetS in adults in Zhejiang Province.

Methods

This cohort study included 359 adults aged 40-65 years and followed up for five years in Zhejiang Province. The study assessed the predictive capabilities of five indicators linked to obesity and lipid levels, namely body mass index (BMI), waist-to-height ratio (WHtR), triglyceride-glucose index (TyGi), and their combined indices (TyG-BMI, TyG-WHtR). The evaluation was done employing the area under the Receiver Operating Characteristic (ROC) Curve (AUC). DeLong test was applied to compare area under different ROC curves.We evaluated the relationships between five variables and MetS using multivariate logistic regression.

Results

In normal-weight individuals, the five-year cumulative incidence of MetS was 21.85%, but in overweight people, it was 60.33%. After adjusting for confounding factors, BMI, WHtR, TyGi, TyG-BMI, and TyG-WHtR were independently linked to MetS in normal-weight individuals, while BMI, TyGi, TyG-BMI, and TyG-WHtR were independently linked to MetS in overweight individuals. In normal-weight individuals, the WHtR (AUC=0.738 and optimal threshold value =0.469) and TyG-WHtR (AUC=0.731 and optimal threshold value =4.121) had the larger AUC, which was significantly greater than that of the different three indicators. The TyG-BMI (AUC=0.769 and optimal threshold value = 211.099) was the best predictor of MetS in overweight individuals.

Conclusion

The five-year cumulative incidence of MetS in overweight people was approximately triple that of normal-weight people in Zhejiang Province. In the overweight population, the TyG-BMI performed better than the other indices in predicting MetS. WHtR and TyG-WHtR outperformed BMI, TyGi, and TyG-BMI in anticipating MetS in a normal-weight population.

Association between metabolic syndrome and the risk of colorectal cancer: a prospective study in China

OBJECTIVE

To evaluate the correlation between metabolic syndrome (MetS) and its components on the incidence of colorectal cancer (CRC) based on data from Jinchang Cohort.

METHODS

This is a large prospective cohort study. Between 2011 and 2020, a total of 43 516 individuals from Jinchang Cohort were included for this study. Hazard ratios (HRs) with 95% confidence intervals (CIs) for CRC according to MetS were calculated with the Cox proportional hazard models. The restricted cubic spine models with four knots were conducted to fit the dose-response relationships.

RESULTS

MetS was associated with increased risk of CRC (n = 141; HR: 1.64, 95% CI: 1.15-2.33) after adjusting for confounding factors (age, sex, education level, family history of CRC, smoking index and alcohol index). Participants with hyperglycemia had a significantly higher risk of developing incident CRC (HR: 1.70; 95% CI: 1.19-2.43). The positive association between MetS and CRC was observed in males (HR: 1.76; 95% CI: 1.17-2.63), but not in females (HR: 1.24; 95% CI: 0.59-2.64). Furthermore, linear dose-response relationship was found between fasting plasma glucose (FPG) and CRC risk in males ( Poverall < 0.05, Pnon-linear = 0.35). When stratified by smoke and drink, MetS was found to increase the incidence of CRC only in the smoke (HR: 2.07, 95% CI: 1.35-3.18) and drink (HR: 2.93, 95% CI: 1.51-5.69) groups.

CONCLUSION

MetS was associated with a higher risk of CRC incidence. Hyperglycemia lended strong support to the role of MetS in new-onset CRC, especially in males. Other components of MetS were not found to be associated with increased risk of CRC.

Racial and Ethnic Disparities in Primary Prevention of Cardiovascular Disease

Cardiovascular disease (CVD) disproportionately affects ethnic-minority groups globally. Ethnic-minority groups face particularly high CVD burden and mortality, exacerbated by disparities across modifiable risk factors, wider determinants of health, and limited access to preventative interventions. This narrative review summarizes evidence on modifiable risk factors, such as physical activity, hypertension, diet, smoking, alcohol consumption, diabetes, and the polypill for the primary prevention of CVD in ethnic minorities. Across these factors, we find inequities in risk factor prevalence. The evidence underscores that inequalities in accessibility to interventions and treatments impede progress in reducing CVD risk using primary prevention interventions for ethnic-minority people. Although culturally tailored interventions show promise, further research is required across the different risk factors. Social determinants of health and structural inequities also exacerbate CVD risk for ethnic-minority people and warrant greater attention. Additionally, we find that only limited ethnicity-specific data and guidelines are available on CVD primary prevention interventions for most risk factors. To address these gaps in research, we provide recommendations that include the following: investigating the sustainability and real-world effectiveness of culturally sensitive interventions; ensuring that ethnic-minority peoples' perspectives are considered in research; longitudinal tracking of risk factors; interventions and outcomes in ethnic-minority people; and ensuring that data collection and reporting of ethnicity data are standardized.

Lipid Association of India 2023 update on cardiovascular risk assessment and lipid management in Indian patients: Consensus statement IV

OBJECTIVE

In 2016, the Lipid Association of India (LAI) developed a cardiovascular risk assessment algorithm and defined low-density lipoprotein cholesterol (LDL-C) goals for prevention of atherosclerotic cardiovascular disease (ASCVD) in Indians. The recent refinements in the role of various risk factors and subclinical atherosclerosis in prediction of ASCVD risk necessitated updating the risk algorithm and treatment goals.

METHODS

The LAI core committee held twenty-one meetings and webinars from June 2022 to July 2023 with experts across India and critically reviewed the latest evidence regarding the strategies for ASCVD risk prediction and the benefits and modalities for intensive lipid lowering. Based on the expert consensus and extensive review of published data, consensus statement IV was commissioned.

RESULTS

The young age of onset and a more aggressive nature of ASCVD in Indians necessitates emphasis on lifetime ASCVD risk instead of the conventional 10-year risk. It also demands early institution of aggressive preventive measures to protect the young population prior to development of ASCVD events. Wide availability and low cost of statins in India enable implementation of effective LDL-C-lowering therapy in individuals at high risk of ASCVD. Subjects with any evidence of subclinical atherosclerosis are likely to benefit the most from early aggressive interventions.

CONCLUSIONS

This document presents the updated risk stratification and treatment algorithm and describes the rationale for each modification. The intent of these updated recommendations is to modernize management of dyslipidemia in Indian patients with the goal of reducing the epidemic of ASCVD among Indians in Asia and worldwide.

The association between body mass index and abdominal obesity with hypertension among South Asian population: findings from nationally representative surveys

OBJECTIVE

This study aimed to determine the association between body mass index (BMI) and abdominal obesity with hypertension among the South Asian adults (18-69 years).

METHODS

This study utilized the nationally representative WHO STEPwise approach to surveillance data (n = 24,413) from Afghanistan, Bangladesh, Bhutan, Nepal, and Sri Lanka. Hypertension was defined as having a systolic blood pressure of 140 mmHg or higher, a diastolic blood pressure of 90 mmHg or higher, and/or taking antihypertensive medications. A waist circumference ≥ 90 cm in men and ≥ 80 cm in women was considered as abdominal obesity. BMI was categorized according to Asia-specific cutoff and overweight was defined as BMI of 23.0-27.5 kg/m2 and obesity was defined as BMI ≥ 27.5 kg/m2. Multivariable logistic regression analyses were conducted to identify the association between BMI and abdominal obesity with hypertension. The odds ratio (OR) with a 95% confidence interval (CI) was reported.

RESULTS

Abdominal obesity increased the odds of hypertension 31%-105% compared to those who did not have abdominal obesity (OR: Afghanistan: 2.05; 95% CI: 1.27-3.31; Bangladesh: 1.55; 95% CI: 1.18-2.04; Bhutan: 1.31; 95% CI: 1.03-1.66; Nepal: 1.69; 95% CI: 1.31-2.18; Sri Lanka:1.55; 95% CI: 1.23-1.95). The odds increased among participants with both overweight/obesity and abdominal obesity. In all five countries under study, participants with both overweight and abdominal obesity (OR: Afghanistan: 2.75; 95% CI: 1.75-4.34; Bangladesh: 2.53; 95% CI: 1.90-3.37; Bhutan: 2.22; 95% CI: 1.64-3.00; Nepal: 2.08; 95% CI: 1.54-2.81; Sri Lanka: 2.29; 95% CI: 1.77-2.98), as well as those with obesity and abdominal obesity (OR: Afghanistan: 6.94; 95% CI: 4.68-10.30; Bangladesh: 2.95; 95% CI: 2.19-3.97; Bhutan: 3.02; 95% CI: 2.23-4.09; Nepal: 4.40; 95% CI: 3.05-6.34; Sri Lanka: 3.96; 95% CI: 2.94-5.32), exhibited higher odds of having hypertension as compared to participants with a normal BMI and no abdominal obesity.

CONCLUSION

Having both abdominal obesity and overweight/obesity increased the odds of hypertension among South Asian adults. Preventing overweight/obesity and abdominal obesity is necessary for preventing the burden of hypertension in South Asia.

Association of changes in waist circumference, waist-to-height ratio and weight-adjusted-waist index with multimorbidity among older Chinese adults: results from the Chinese longitudinal healthy longevity survey (CLHLS)

BACKGROUND

The association of changes in waist circumference (WC), waist-to-height ratio (WHtR) and weight-adjusted-waist index (WWI) with subsequent risk of multimorbidity remains unclear among older Chinese adults. Therefore, we aimed to assess this association by utilizing data from the Chinese Longitudinal Healthy Longevity Survey (CLHLS).

METHODS

Our study was based on the 2011/2012 wave of the CLHLS whose follow-up surveys were conducted in 2014 and 2017/2018. A total of 2900 participants aged 65 and above at baseline were enrolled. WC, WHtR, and WWI were calculated from measured height, weight, and waist circumference. Multimorbidity refers to the coexistence of two or more of 18 chronic diseases. Cox proportional hazards models were used to estimate hazard ratios (HRs) and 95% confidence intervals (95%CIs) to evaluate the effect of three-year changes in WC, WHtR, and WWI on the risk of multimorbidity.

RESULTS

During a mean follow-up time of 4.2 (2.0) years, 906 multimorbidity cases were identified. Compared to participants in the persistently low WC group, those in the WC gain group and the persistently high WC group had a higher multimorbidity risk with adjusted HRs (95%CI) of 1.23 (1.01-1.50) and 1.34(1.14-1.58), respectively. Participants in the WHtR gain group and the persistently high WHtR group also had higher risks of multimorbidity with HRs (95%CI) of 1.35 (1.08-1.67) and 1.27 (1.05-1.53), respectively, relative to the persistently low WHtR group. Compared to the persistently low WWI group, those in the WWI loss group had a lower risk of multimorbidity with HRs (95%CI) of 0.80 (0.66-0.98). For every standard deviation increase in WC, WHtR, and WWI over three years, the risk of multimorbidity was higher by 12% (95%CI: 1.05-1.19), 13% (95%CI: 1.06-1.20), and 12% (95%CI: 1.05-1.20), respectively.

CONCLUSIONS

Associations of changes in WC, WHtR and WWI with multimorbidity are significant among older Chinese adults. The findings highlight the importance of evaluating changes in WC, WHtR, and WWI in screening and prevention of multimorbidity in older adults.

The impact of the Sri Lankan economic crisis on medication adherence: An online cross-sectional survey

Background

The economic crisis in Sri Lanka has disarrayed the country's healthcare services, posing a challenge to people with chronic diseases on routine care. This study investigated the changes in medication adherence during the economic crisis.

Methods

A web-based cross-sectional survey was undertaken in July-August 2022. It assessed socio-demographics, diseases, medication adherence, and reasons for changes in compliance of respondents and their family members during the economic crisis. Descriptive statistics and multivariable logistic regression analysis were used.

Findings

A total of 1214 respondents, aged ≥18 years were included in the survey. The majority were females (60%). The main finding was that 39%, 41%, and 37% of participants, their family members, or children respectively have changed medication use during the crisis. Among those who changed their medication practices, the most significant change was the change in the brand, reported by 44.7% of the respondents. A similar pattern was observed among other family members, with 61.3% of adults and 53.8% of children switching brands. Respondents who lived outside the Colombo district had a significantly increased risk of changing medication (OR = 1.425, 95% CI = 1.020-1.992, P = 0.038). Respondents with monthly incomes of less than 100,000 LKR had a twofold greater risk of medication nonadherence compared to participants who earned more than 100,000 LKR per month (OR = 2.278, 95% CI = 1.37-3.78, P = 0.001). The most stated reason for changing medication among adults was the high cost of drugs, whereas among, children, the lack of access to drugs in the public or private sector was the leading cause of non-compliance.

Interpretation

The population's adherence to medication is negatively impacted by the economic crisis in Sri Lanka.

Understanding the predictive accuracy of the InsuTAG index over other surrogate indices in normoglycaemic, non-obese males from Southern India

We aimed to evaluate the predictive accuracy of InsuTAG index against M value of the hyperinsulinaemic-Euglycaemic clamp (HEC) procedure and fasting surrogate indices of insulin sensitivity/resistance in young, normoglycaemic, Asian Indian males. HEC studies were done in young (mean age 19.7 ± 1 years), non-obese (mean BMI 19.2 ± 2.6 kg/m2), normoglycemic Asian Indian males (n = 110) and the M value was calculated. Surrogate indices namely InsuTAG index, HOMA-IR, FG-IR, QUICKI and McAuley index were calculated. Pearson's correlation and ROC-AUC at 95% CI were applied. Significant negative correlation was observed for InsuTAG index with the M value (r - 0.23, p = 0.01), McAuley index (r - 0.65, p < 0.01), QUICKI (r - 0.34, p < 0.01) and FGIR (r - 0.35, p < 0.01). Significant positive correlations of InsuTAG index were observed for BMI and waist circumference. The ROC-AUC was higher for InsuTAG index (0.75) than FGIR (0.30), QUICKI (0.31), and McAuley index (0.20). The InsuTAG cut-off value ≥ 19.13 showed 66.7% sensitivity and 69.2% specificity in this study group.

Genetic architecture of adiposity measures among Asians: Findings from GWAS

Adiposity has gradually become a global public threat over the years with drastic increase in the attributable deaths and disability adjusted life years (DALYs). Given an increased metabolic risk among Asians as compared to Europeans for any given body mass index (BMI) and considering the differences in genetic architecture between them, the present review aims to summarize the findings from genome-wide scans for various adiposity indices and related anthropometric measures from Asian populations. The search for related studies, published till February 2022, were made on PubMed and GWAS Catalog using search strategy built with relevant keywords joined by Boolean operators. It was recorded that out of a total of 47 identified studies, maximum studies are from Korean population (n = 14), followed by Chinese (n = 7), and Japanese (n = 6). Nearly 200 loci have been identified for BMI, 660 for height, 16 for weight, 28 for circumferences (waist and hip), 32 for ratios (waist hip ratio [WHR] and thoracic hip ratio [THR]), 5 for body fat, 16 for obesity, and 28 for adiposity-related blood markers among Asians. It was observed that though, most of the loci were unique for each trait, there were 3 loci in common to BMI and WHR. Apart from validation of variants identified in European setting, there were many novel loci discovered in Asian populations. Notably, 125 novel loci form Asian studies have been reported for BMI, 47 for height, 5 for waist circumference, and 2 for adiponectin level to the existing knowledge of the genetic framework of adiposity and related measures. It is necessary to examine more advanced adiposity measures, specifically of relevance to abdominal adiposity, a major risk factor for cardiometabolic disorders among Asians. Moreover, in spite of being one continent, there is diversity among different ethnicities across Asia in terms of lifestyle, climate, geography, genetic structure and consequently the phenotypic manifestations. Hence, it is also important to consider ethnic specific studies for identifying and validating reliable genetic variants of adiposity measures among Asians.

General and abdominal obesity and dietary nutrient intake among university students in Bangladesh: A cross-sectional study targeting potential risk factors

BACKGROUND & AIMS

The overall national increase in the prevalence of overweight and obesity has emerged among university students in Bangladesh. Though, poor dietary habits and lifestyle is quite common among university students, their dietary nutrient intake level, obesity prevalence and potential risk factors has hitherto given little priority. This study aimed to understand the prevalence and factors associated with general and abdominal obesity and level of dietary nutrient intake among university students in Bangladesh.

METHODS

Data from 320 unselected tertiary level students (81.6% males, 18.4% females; average age 22.7±3.0, BMI 22.4±3.1 and waist-hip ratio (WHR) 0.88 ± 0.1) was collected randomly, in a single visit, from Islamic University, Kushtia, Bangladesh. Basic demographic and anthropometric information were collected. Twenty-four hour (24H) dietary recall and food frequency questionnaire (FFQ) was used to collect dietary nutrient level retrospectively. Descriptive statistics, chi-square test, t-test, ANOVA, and binomial logistic regression analysis were done.

RESULTS

Around 3% and 42% student were reported to be obese and overweight respectively. Whereas abdominal obesity was prevalent among ∼52% and more than 67% of student were reportedly obese/overweight by either BMI or WHR or WHtR category. Energy and carbohydrate (CHO) intake were reported to be significantly higher (P < 0.05) among overweight who born by C-section delivery and were fed formula milk than those were normal weight and born by vaginal-birth and were breastfed. The overweight individual with a history of preterm birth was reported to intake significantly higher (P < 0.05) carbohydrates compared to normal-weight individuals with a history of term birth. While total fat intake was significantly higher (P < 0.05) among overweight individuals with their mother had gestational diabetes than those with normal weight individuals with mother without gestational diabetes.

CONCLUSIONS

General and abdominal obesity is common among university students and possibly associated with mode of birth, gestational duration, gestational diabetes, and breastfeeding practice.

Gender differences in metabolic syndrome and its components in southern china using a healthy lifestyle index: a cross-sectional study

BACKGROUND

Lifestyle changes are important for the prevention and management of metabolic syndrome (MetS), but studies that focus on gender differences in the lifestyle risk factors of MetS are limited in China. This research aimed to generate a healthy lifestyle index (HLI) to assess the behavioral risk factors of MetS and its components, and to explore the gender differences in HLI score and other influencing factors of MetS.

METHODS

A convenience sample of 532 outpatients were recruited from a general hospital in Changsha, China. The general information and HLI scores [including physical activity (PA), diet, smoking, alcohol use, and body mass index (BMI)] of the subjects were collected through questionnaires, and each patient's height, weight, waist circumference, and other physical signs were measured. Logistic regression analysis was used to analyze the risk factors of MetS and its components.

RESULTS

The prevalence of MetS was 33.3% for the whole sample (46.3% in males and 23.3% in females). The risk of MetS increased with age, smoking, unhealthy diet, and BMI in males and with age and BMI in females. Our logistic regression analysis showed that lower HLI (male: OR = 0.838,95%CI = 0.757-0.929; female: OR = 0.752, 95%CI = 0.645-0.876) and older age (male: OR = 2.899, 95%CI = 1.446-5.812; female: OR = 4.430, 95%CI = 1.640-11.969) were independent risk factors of MetS, for both sexes.

CONCLUSION

Low levels of HLI and older ages were independent risk factors of MetS in both males and females. The association between aging and MetS risk was stronger in females, while the association between unhealthy lifestyles and MetS risk was stronger in males. Our findings reinforced the expected gender differences in MetS prevalence and its risk factors, which has implications for the future development of gender-specific MetS prevention and intervention programs.

A prospective study comparing itraconazole alone versus systemic steroids alone as adjuncts to topical steroids in the post-operative management of allergic fungal rhinosinusitis

OBJECTIVES

The objective of this study was to compare the efficacy of itraconazole and systemic steroids as an adjuvant to topical steroids in post-operative patients with allergic fungal rhinosinusitis (AFRS) using both subjective and objective outcome measurements.

DESIGN

A prospective comparative study.

SETTING

A tertiary care centre.

PARTICIPANTS

Sixty patients diagnosed with AFRS were included. Patients with chronic systemic illness and those undergoing revision surgery were excluded. Post-operative patients were divided into two groups of 30 each which received itraconazole 400 mg OD or methylprednisolone in tapering doses over 6 weeks.

MAIN OUTCOME MEASURES

The outcomes were measured at the end of 6 weeks-Kupferberg endoscopic staging, absolute eosinophilic count (AEC), serum immunoglobulin (IgE), and Sino Nasal Outcome Test-20 scores.

RESULTS

Our study showed no statistical significance in outcomes between the two groups treated with itraconazole and methylprednisolone regarding recurrence, AEC, IgE and quality of life assessment (p < 0.01).

CONCLUSION

Itraconazole was comparable to methylprednisolone in preventing disease recurrence in the post-operative management of AFRS. It may be a viable alternative to replacing systemic steroids where the latter may be contraindicated. Itraconazole given at a dose of 400 mg once daily for 6 weeks was a safe dose.

A cross-sectional analysis of association between visceral adiposity index and serum anti-aging protein Klotho in adults

BACKGROUND

The visceral adiposity index (VAI) is regarded as a reliable indicator to assess body fat distribution and dysfunction. Klotho protein is a hormone with anti-aging biological functions. However, the relationship between them has not been researched.

OBJECTS

This study aimed to evaluate the association between VAI and serum anti-aging protein klotho in American adults.

METHODS

A cross-sectional study of participants was conducted based on the National Health and Nutrition Examination Surveys (NHANES) 2007-2016. Visceral adiposity was determined using the VAI score, while the klotho protein concentration was measured by ELISA kit. After adjusting some possible confounding variables, multivariate regression model was conducted to estimate the relationship between VAI and klotho protein. Furthermore, the smooth curve fitting and the segmented regression model were applied to examine the threshold effect and to calculate the inflection point.

RESULT

In total, 6 252 adults were eligible, with a mean VAI of 2.04 ± 0.03 and a mean klotho protein concentration of 848.79 ± 6.98 pg/ml. Multivariate regression analysis indicated that serum klotho protein concentration was lower in participants with high VAI score. When VAI was divided into quartiles, participants in the fourth quartiles of higher VAI had lower klotho protein levels (Q4: -32.25 pg/ml) than participants in the lowest quartile (Q1) after full adjustment (P < 0.05). Segmented regression suggested that the turning point value of VAI was 3.21. A 1-unit increase in VAI was significantly associated with lower klotho protein levels by -18.61 pg/ml (95% CI: -28.87, -8.35; P < 0.05) when VAI ranged from 0.29 to 3.21(accounting for 83.7% of the participants), however, the association was not significant when VAI ranged from 3.21 to 11.81 (P = 0.77).

CONCLUSION

There was a nonlinear correlation between VAI score and the serum anti-aging protein klotho concentrations, showing a saturation effect. When VAI was less than 3.21, they were negatively correlated, and when VAI was greater than 3.21, they had no obvious correlation.

The causal relationship between abdominal obesity and lower bone mineral density: A two-sample mendelian randomization study

Aims: The purpose of this study was to assess the causal effect of abdominal obesity on bone mineral density by two-sample Mendelian randomization (MR).

Methods: Abdominal obesity was chosen as exposure in this study. Single nucleotide polymorphisms, extracted from Genome-wide association analysis (GWAS) data, which are closely associated with waist circumference (WC), hip circumference (HC), and waist-to-hip ratio (WHR) were used as instrumental variables to perform MR studies. Different site bone mineral density, such as total bone mineral density (TBMD) and forearm bone mineral density (FBMD) were chosen as outcomes. Inverse variance weighted (IVW) was used as the primary method to assess this causality.

Results: According to the IVW method (β = −0.177; 95% CI = −0.287, −0.067; p = 1.52 × 10^–3), WC had a negative causal relationship with TBMD, besides, with one standard deviation (SD) higher in HC, there was a 0.195 SD decrease in TBMD (95% CI = −0.279, −0.110; p = 6.32 × 10^–6), and with an increase of one SD in HC was related to a decrease of 0.312 SD in FBMD analyzed by the IVW.

Conclusion: This study showed that abdominal obesity has a negative effect on bone mineral density.

Vitamin D insufficiency is associated with inflammation and deregulation of adipokines in patients with metabolic syndrome

BACKGROUND

Previous studies have been reported that vitamin D deficiency increased the risk of metabolic syndrome (MetS). Nonetheless, the exact mechanisms underlying this association is unclear. Besides, inflammation and deregulation of adipokines secretion have been recognized as pivotal factors that contribute to the pathogenesis of these conditions. Therefore, we assessed whether serum vitamin D status is associated with serum levels of adipokines and inflammatory markers in these patients.

METHODS

This case-control study was carried out among 65 patients with MetS who had vitamin D insufficiency (cases) and 130 MetS patients who had vitamin D sufficiency (controls). Cases and controls were recruited from among those referred to health centers in Zabol County, Iran. Vitamin D insufficiency was regarded as a serum 25-hydroxyvitamin D [25(OH)D] concentration below 30 ng/ml. Serum concentrations of leptin, adiponectin, visfatin, and resistin and also adiponectin/leptin ratio along with serum levels of interleukin 6 (IL-6), IL-10 and tumor necrosis factor-alpha (TNF-α), were evaluated.

RESULTS

Serum levels of leptin, resistin, and TNF-α were significantly higher, whereas, serum adiponectin and adiponectin/leptin ratio were significantly lower in cases than the controls. There was no significant difference in serum visfatin, IL-6, and IL-10 between the groups. Serum levels of 25(OH)D were inversely correlated with leptin, resistin, and TNF-α in both unadjusted models and after adjustment for potential confounders.

CONCLUSION

Our findings indicated that vitamin D insufficiency in MetS patients is associated with increased inflammation and serum adipokine abnormalities which may be associated with developing metabolic complications in these patients.

Metabolic Syndrome-Related Kidney Injury: A Review and Update

Metabolic syndrome (MetS) includes visceral obesity, hyperglycemia, dyslipidemia, and hypertension. The prevalence of MetS is 20-25%, which is an important risk factor for chronic kidney disease (CKD). MetS causes effects on renal pathophysiology, including glomerular hyperfiltration, RAAS, microalbuminuria, profibrotic factors and podocyte injury. This review compares several criteria of MetS and analyzes their differences. MetS and the pathogenesis of CKD includes insulin resistance, obesity, dyslipidemia, inflammation, oxidative stress, and endothelial dysfunction. The intervention of MetS-related renal damage is the focus of this article and includes controlling body weight, hypertension, hyperglycemia, and hyperlipidemia, requiring all components to meet the criteria. In addition, interventions such as endoplasmic reticulum stress, oxidative stress, gut microbiota, body metabolism, appetite inhibition, podocyte apoptosis, and mesenchymal stem cells are reviewed.