Sagittal abdominal diameter: comparison with waist circumference and its prediction of metabolic syndrome

Background  

For an “in the field” estimate of visceral adiposity, simple, inexpensive, non-invasive and highly repetitive methods are needed. The anthropometric measurement most commonly used as an indicator for visceral fat deposits is waist circumference (W). Nevertheless, there are some doubts with regard to the anatomic landmark points where the evaluation needs to be carried out. Sagittal abdominal diameter (SAD) is another anthropometric measurement that has been proposed for the estimation of visceral fat.     

Simple anthropometric measures correlate with metabolic risk indicators as strongly as magnetic resonance imaging-measured adipose tissue depots in both HIV-infected and control subjects

BACKGROUND: Studies in persons without HIV infection have compared percentage body fat (%BF) and waist circumference as markers of risk for the complications of excess adiposity, but only limited study has been conducted in HIV-infected subjects. OBJECTIVE: We compared anthropometric and magnetic resonance imaging (MRI)-based adiposity measures as correlates of metabolic complications of adiposity in HIV-infected and control subjects. DESIGN: The study was a cross-sectional analysis of 666 HIV-positive and 242 control subjects in the Fat Redistribution and Metabolic Change in HIV Infection (FRAM) study assessing body mass index (BMI), waist (WC) and hip (HC) circumferences, waist-to-hip ratio (WHR), %BF, and MRI-measured regional adipose tissue. Study outcomes were 3 metabolic risk variables [homeostatic model assessment (HOMA), triglycerides, and HDL cholesterol]. Analyses were stratified by sex and HIV status and adjusted for demographic, lifestyle, and HIV-related factors. RESULTS: In HIV-infected and control subjects, univariate associations with HOMA, triglycerides, and HDL were strongest for WC, MRI-measured visceral adipose tissue, and WHR; in all cases, differences in correlation between the strongest measures for each outcome were small (r 相似文献   

中国老年人代谢综合征患病率META分析

目的 通过Meta分析描述我国老年人代谢综合征（Metabolic syndrome,MS）患病率水平,为老年人MS的防控提供科学依据。方法 系统检索2005—2021 年在中国期刊全文数据库（CNKI）、万方数据资源系统（Wanfang database）、维普数据库（VIP）及PubMed、Embase、Cochrane library中收录的有关中国老年人MS患病率研究的文献。采用美国卫生保健质量和研究机构（Agency for Healthcare Research and Quality, AHRQ）编制的横断面研究质量评价量表对入选文献进行文献质量评价。采用Stata 16.0软件进行数据合并估算患病率,并对性别、地区差异、发表时间、年龄因素进行亚组分析,采用Egger检验判断发表偏倚,通过排除其中任意一篇文献对合并效应值的影响来进行敏感性分析。结果 共纳入21篇研究文献,共77190名老年人,中国老年人MS的合并患病率为23.9%（95%CI:21.8%~26.1%）;亚组分析显示,老年男性的合并患病率为21.6%（95%CI:19.5%~23.8%）,老年女性的合并患病率为26.1%（95%CI:23.6%~28.6%）,老年女性的MS的合并患病率明显高于男性（P=0.008）;而以地域,年龄以及发表年度作为亚组划分,各组老年人MS的合并患病率无明显差异。结论 近20年来,我国老年人MS患病率无明显变化,应注重对老年女性MS的预防。     

Lipoprotein profiles,not anthropometric measures,correlate with serum lipoprotein(a) values in children: the Taipei children heart study

Objectives: Plasma lipoprotein(a) [Lp(a)] is a risk factor for cardiovascular disease. The purpose of this study is to evaluate the correlation of anthropometric measures, lipids and lipoprotein profiles and serum Lp(a) values among children in Taiwan. We will attempt to find parameters that will be able to predict Lp(a) levels in children. Design and methods: After a probability-proportional-to size, multi-stages sampling procedure, we randomly sampled 1500 schoolchildren from 10 schools in Taipei city. Anthropometric measures including body weight, body height, waist and hip circumference and skinfolds were measured. We used standard methods to measure serum total cholesterol (CHOL), triglycerides (TG), high density lipoprotein-cholesterol (HDL-C), apolipoprotein A1 and B (ApoA1 and ApoB) and Lp(a) levels. We also calculated low density lipoprotein-cholesterol (LDL-C) and CHOL/HDL-C ratio (TCHR) by formula. Results: We sampled 1283 children (635 boys and 648 girls) with a mean age of 13.3 years (from 12 to 16 years) in this study. The mean and medium serum Lp(a) levels were 16.8 and 8.8 mg/dl among boys and 20.8 and 11.9 mg/dl among girls. Children in the highest quintile of Lp(a) (mean = 49.6 and 58.6 mg/dl for boys and girls, respectively) had higher CHOL, LDL-C, ApoB levels and TCHR than children in the lowest quintile (mean = 3.1 and 3.7 mg/dl for boys and girls, respectively). Lipids and lipoprotein profiles, such as CHOL, LDL-C, Apo-B and TCHR were positively correlated with Lp(a) levels in both genders. Furthermore, the children with Lp(a) levels greater than or equal to 30 mg/dl had higher CHOL, LDL-C and Apo-B levels when compared to children with Lp(a) levels less than 30 mg/dl. After adjusting for age, cigarette smoking, alcohol drinking, puberty development and heart rates, LDL-C and ApoB levels were significantly positively associated with Lp(a) levels while ApoA1 was negatively associated among boys. Among girls, only Apo-B was significantly positively associated with Lp(a) and TG was negatively associated with Lp(a) levels. Most importantly, none of the anthropometric measures were significantly correlated with Lp(a) levels. Conclusions: From this study, we found that lipids and lipoproteins profiles, rather than degree of adiposity as reflected by anthropometric measures, are significantly associated with serum Lp(a) levels among school children.     

Strength and anthropometric measures in identical and fraternal twins: no evidence of masculinization of females with male co-twins

Sharing of intrauterine environment in twins of opposite sex has been hypothesized to result in masculinization of the female twin. We tested this hypothesis by comparing strength (maximum hand-grip pressure) and various anthropometric measures in a newly established survey panel comprising 4,314 middle-aged twins identified through a Danish population-based twin registry. Sex- and zygosity-specific mean values of handgrip strength, height, weight, body mass index, and waist circumference were highly comparable between fraternal twins of opposite sex and fraternal twins of same sex. Our results provide no support for the hypothesis of masculinization of female twins from opposite sex twin pairs.     

Effect of green tea (Camellia sinensis) consumption on the components of metabolic syndrome in elderly

Objective

To evaluate the effect of the consumption of green tea on components of MS in the elderly.

Design

Intervention study.

Setting

The sample was selected from the Geriatric Service of Hospital S?o Lucas of Pontifical Catholic University of Rio Grande do Sul.

Participants

45 elderly with MS were enrolled and allocated into two groups: green tea group (GTG, n = 24), who drank green tea and control group (CG, n= 21) without intervention.

Intervention

The GTG received sachets of 1.0 g of green tea, and should drink three cups per day for 60 days and the CG was instructed not to make changes in their lifestyle.

Measurements

The diagnostic criteria for MS used were the International Diabetes Federation. The lipidic and glycemie profile, and anthropometric measurements were evaluated before and after intervention.

Results

There was a statistically significant weight loss only in GTG [71.5±12.6 kg to 70.3±12.6 kg (p<0.001)]. A statistically significant decrease in BMI [?0.5±0.4 kg/m² in GTG and ?0.2±0.6 kg/m² in CG (P=0.032)] and waist circumference [?2.2±2.0 cm in GTG and ? 0.3±1.8 cm in CG (P=0.002)] were observed. The intake of green tea did not change the biochemical parameters.

Conclusion

The consumption of green tea was effective in inducing weight loss, reducing BMI and waist circumference in the elderly with MS.     

Prevalence of metabolic syndrome and its components in the menopausal transition: a systematic review

Metabolic syndrome is a complex disorder involving a combination of cardiovascular risk factors. Menopausal transition can be a key factor in the increased prevalence of metabolic syndrome. The current study aims to evaluate the prevalence of metabolic syndrome and its components in the menopausal transition, using a systematic review. Three reviewers conducted an article search in PubMed. The articles' quality was evaluated according to Strengthening the Reporting of Observational Studies in Epidemiology (STROBE). Based on the selected studies, prevalence of metabolic syndrome increases in the post-menopausal (as compared to pre-menopausal) period, regardless of the population and study design. The change was more significant for waist circumference and blood pressure, suggesting that these components have the greatest influence on prevalence of metabolic syndrome.     

Association of serum NO x level with clustering of metabolic syndrome components in middle-aged and elderly general populations in Japan

Objectives The aim of this study was to determine whether the serum nitrite plus nitrate (NO _x ) level correlates with biomarkers that are known components of the metabolic syndrome (MetS). Methods Serum NO _x levels were measured using a commercial kit in 608 Japanese men and women between the ages of 39 and 85 years. Multivariate adjustments for age, smoking status, alcohol consumption and exercise were made in the analysis of covariance (ANCOVA). The components of the metabolic syndrome were defined based on the following criteria: body mass index (BMI) ≥25.0 kg/m², glycated hemoglobin (HbA1c) ≥5.6%, systolic blood pressure ≥130 mmHg or diastolic blood pressure ≥85 mmHg, high-density lipoprotein-cholesterol (HDL-C) ≤1.03 mmol/l for men and ≤1.29 mmol/l for women and triglyceride ≥1.69 mmol/l. Results The logarithmically transformed age-adjusted serum NO _x (lnNO _x ) value was significantly higher in the low HDL-C group (1.76 ± 0.05 μmol/l; p < 0.05) than MetS component groups (1.65 ± 0.01 μmol/l) in men, but no difference was found in women. The means of serum lnNO _x after multivariate adjustment were 1.64, 1.65, 1.64, 1.66, and 1.81 μmol/l for 0, 1, 2, 3, and 4–5 MetS components for all subjects, respectively. The results of ANCOVA confirmed that the serum lnNO _x level was significantly correlated with the clustering of MetS components in both men and women (p < 0.0001 for trend). Conclusion Our results suggest that an increase in the clustering of MetS components was associated with the increase in serum NO levels in our general population.     

Divergent associations of plasma choline and betaine with components of metabolic syndrome in middle age and elderly men and women

Choline is involved in the synthesis of phospholipids, including blood lipids, and is the immediate precursor of betaine, which serves as a methyl group donor in a reaction converting homocysteine to methionine. Several cardiovascular risk factors are associated with plasma homocysteine, whereas little is known about their relationship to choline and betaine. We examined the relation of plasma choline and betaine to smoking, physical activity, BMI, percent body fat, waist circumference, blood pressure, serum lipids, and glucose in a population-based study of 7074 men and women aged 47-49 and 71-74 y. Overall plasma concentrations (means +/- SD) were 9.9 +/- 2.3 micromol/L for choline and 39.5 +/- 12.5 micromol/L for betaine. Choline and betaine were lower in women than in men and in younger subjects compared with older (P < 0.0001). Multivariate analyses showed that choline was positively associated with serum triglycerides, glucose, BMI, percent body fat, waist circumference (P < 0.0001 for all), and physical activity (P < 0.05) and inversely related to HDL cholesterol (P < 0.05) and smoking (P < 0.0001). Betaine was inversely associated with serum non-HDL cholesterol, triglycerides, BMI, percent body fat, waist circumference, systolic and diastolic blood pressure (P < 0.0001 for all), and smoking (P < 0.05) and positively associated with HDL cholesterol (P < 0.01) and physical activity (P < 0.0001). Thus, an unfavorable cardiovascular risk factor profile was associated with high choline and low betaine concentrations. Choline and betaine were associated in opposite directions with key components of metabolic syndrome, suggesting a disruption of mitochondrial choline dehydrogenase pathway.     

The effects of the DASH diet education program with omega-3 fatty acid supplementation on metabolic syndrome parameters in elderly women with abdominal obesity

BACKGROUND/OBJECTIVES

The purpose of this study was to investigate the overall effects of a tailored Dietary Approaches to Stop Hypertension (DASH) nutritional intervention program which included omega-3 fatty acids supplementation, on dietary self-efficacy, dietary knowledge, and dietary behaviors in Korean elderly women with abdominal obesity. Furthermore, we investigated the effects of the program on metabolic syndrome parameters including the antioxidant capacities in these subjects.

SUBJECTS/METHODS

A randomized, controlled trial was conducted for 8 weeks. The experimental group (n = 21) received a weekly tailored nutritional program for 8 weeks and the control group (n = 18) received only one educational session. The clinical survey was conducted before and after the intervention period.

RESULTS

After the intervention, dietary self-efficacy (P = 0.023), frequency of fruit intake (P = 0.019), and dietary fiber intake (P = 0.044) were higher in the experimental group than in the control group. The oxidative stress (P < 0.001) was lower in the experimental group than in the control group. Moreover, low density lipoprotein (LDL) cholesterol (P = 0.023) had significantly decreased in the experimental group but not in the control group after the intervention.

CONCLUSIONS

The intervention program including omega-3 fatty acid supplementation had a positive effect on dietary self-efficacy, dietary behaviors, and oxidative stress among aged women with abdominal obesity.     

Dietary carbohydrate modification induces alterations in gene expression in abdominal subcutaneous adipose tissue in persons with the metabolic syndrome: the FUNGENUT Study

BACKGROUND: Diets rich in whole-grain cereals and foods with a low glycemic index may protect against type 2 diabetes, but the underlying molecular mechanisms are unknown. OBJECTIVE: The main objective was to test whether 2 different carbohydrate modifications--a rye-pasta diet characterized by a low postprandial insulin response and an oat-wheat-potato diet characterized by a high postprandial insulin response--affect gene expression in subcutaneous adipose tissue (SAT) in persons with the metabolic syndrome. DESIGN: We assessed the effect of carbohydrate modification on SAT gene expression in 47 subjects [24 men and 23 women with a mean (+/-SD) age of 55 +/- 6 y] with the features of the metabolic syndrome in a parallel study design. The subjects had a mean (+/-SD) body mass index (kg/m(2)) of 32.1 +/- 3.8 and a 2-h plasma glucose concentration of 8.0 +/- 2.3 mmol/L. Adipose tissue biopsies were performed, and oral-glucose-tolerance tests and other biochemical measurements were conducted before and after the intervention. RESULTS: We detected 71 down-regulated genes in the rye-pasta group, including genes linked to insulin signaling and apoptosis. In contrast, the 12-wk oat-wheat-potato diet up-regulated 62 genes related to stress, cytokine-chemokine-mediated immunity, and the interleukin pathway. The insulinogenic index improved after the rye-pasta diet (P=0.004) but not after the oat-wheat-potato diet. Body weight was unchanged in both groups. CONCLUSIONS: Dietary carbohydrate modification with rye and pasta or oat, wheat, and potato differentially modulates the gene expression profile in abdominal subcutaneous adipose tissue, even in the absence of weight loss.     

2011年郑州市中老年人糖化血红蛋白水平及与代谢综合征及各种代谢紊乱的相关性

目的 探讨中老年社区居民糖化血红蛋白(hemoglobin A1c, HbA1c)水平与代谢综合征(metabolic syndrome, MS)及各种代谢紊乱的相关性。 方法 2011年7月,对郑州市四个社区8 237名社区居民进行问卷调查、体格检查和实验室检查,按照HbA1c＜5.7%,5.7%～,6.5%～分组后调查MS及各种代谢紊乱的患病率,采用Pearson相关分析探讨HbA1c与MS及各项代谢指标的相关性。 结果 中老年社区居民HbA1c水平较高, MS和各种代谢紊乱随着HbA1c水平的升高而升高,当HbA1c≥6.5%时,MS、中心性肥胖、高甘油三酯(high triglyceride,H-TG)血症、低高密度脂蛋白胆固醇(high density lipoprotein cholesterol,HDL-C)血症的患病率分别为81.7%、78%、50.8%、58%。HbA1c与HDL-C呈负相关;与腰围、体重指数、舒张压、胆固醇、甘油三酯、低密度脂蛋白胆固醇、糖耐量试验2h血糖呈正相关。 结论 2011年郑州市社区中老年人群HbA1c水平较高,HbA1c≥6.5%时MS和各种代谢紊乱的患病率较高,HbA1c与MS和各种代谢紊乱有较强相关性。     

Effects of pulse consumption in women presenting components of the metabolic syndrome: a randomized controlled trial

The objective of the study is to evaluate the effects of pulse consumption in women presenting at least two primary components of the metabolic syndrome (MS). One hundred and thirty-four women were randomly assigned to consume for a 16-week period either 750 ml of pulses weekly or control meals without pulses. Main outcomes measure were primary and secondary components of the MS and body fatness. A significant increase in dietary fibers and a significant decrease in dietary cholesterol were observed in the pulse group. For all components of the MS and body fatness, no significant differences were observed between the group consuming pulses or in the control group; however, plasma fibrinogen concentration decreased significantly only in the pulse group. In conclusion, a nutritional intervention providing 750 ml of pulses weekly had no effect on primary and secondary components of the MS and on body fatness.     

Physical-activity-assessment measures compared in a biethnic rural population: the San Luis Valley Diabetes Study

We evaluated the consistency of three questionnaire methods of assessing work and leisure activity in the rural biethnic population of the San Luis Valley Diabetes Study. A 7-d physical activity recall (PAR), a ranking of usual activity, and a history of usual participation in vigorous activity were used. Energy expenditure (kJ.kg-1.wk-1) (EE) was estimated from PAR. Subjects were 503 adults [49% non-Hispanic white (NHW), 51% Hispanic]. Physical activity at work rather than leisure-time activity largely determined total energy expenditure. Average EE at work increased with work rank for all subjects combined [mean EE (SEE) for rank 1 (low) = 324.2 (24.4), rank 4 (high) = 874.0 (102.1)] and within sex, ethnic, and occupational subgroups. Leisure EE increased with leisure rank only for NHW men and employed women. Similar patterns were observed in comparisons of PAR data with history of vigorous activity. Further development and validation of instruments appropriate for use across population subgroups are needed.     

Prevalence of the metabolic syndrome and its components in Northwest Russia: the Arkhangelsk study

Background  

The metabolic syndrome (MetS) is a cluster of risk factors associated with morbidity from cardiovascular disease (CVD) and associated mortality. Russia has one of the highest CVD mortality rates in the world. However, the prevalence of MetS in Russia remains largely unknown. The aim of this study is to estimate the prevalence of MetS and its components in an urban Russian setting.     

Relationship between long-term coffee consumption and components of the metabolic syndrome: the Amsterdam Growth and Health Longitudinal Study

Cardiovascular diseases and diabetes mellitus type II (DM II) are both major health problems. A large risk factor for these diseases is the presence of the metabolic syndrome. It is known that the risk of DM II can be decreased by coffee consumption. Therefore, we examined the association between coffee consumption and the components of the metabolic syndrome. Prospective data from the Amsterdam Growth and Health Longitudinal Study (AGAHLS) is used to analyse the associations between coffee consumption (averaged over a period from 27 till 42 years) and the components of the metabolic syndrome (at the age of 42 years). This was done by linear regression analyses and associations were adjusted for physical activity, energy intake, alcohol consumption and smoking behaviour. The results showed that moderate and high (>2 cups/day) coffee consumption was significantly associated with lower HDL in women. For men, coffee consumption was not associated with any of the components of the metabolic syndrome.     

Serum gamma glutamyltransferase as a marker of metabolic syndrome and coronary disease likelihood in nondiabetic middle-aged and elderly adults

The role of serum gamma glutamyltransferase (GGT) activity as a cardiovascular risk marker was studied basically cross-sectionally. After appropriate exclusions, 754 men and 802 women were available for analysis who were followed up briefly yielding only 16% of overall cases of coronary heart disease (CHD). GGT activity was measured kinetically. In multivariate analysis across 12 variables, waist circumference, sex, complement C3, moderate alcohol intake and uric acid were significant independent covariates of serum GGT. By analyzing the sample in tertiles, doubling in GGT activity was found associated with a rise of 74% in metabolic syndrome (MS) likelihood-independent of salient confounders (P < 0.001). This association was mediated by waist circumference. Individuals in the top versus the bottom tertile exhibited an odds ratio for CHD likelihood of 1.81 (95% CI 1.09; 3.02)-independent of age, sex, total cholesterol, systolic blood pressure, impaired fasting glucose, smoking status, alcohol usage and, notably, of waist circumference. This indicated that a doubling in serum GGT activity corresponded to a 45% excess in CHD likelihood, after adjustment for standard risk factors. In conclusion, waist circumference is a major determinant of serum GGT activity among Turkish adults. Doubling in activity is associated with a (largely waist girth mediated) rise by over one-half in the multiadjusted MS likelihood, and by nearly one-half in the CHD likelihood, independent of waist girth and major risk factors.