Independent Risk Factor For Obesity Research Articles

Is high salt intake inducing obesity via production of cortisol? A novel working hypothesis and pilot study.

Evidence is growing that high salt intake is an independent risk factor for obesity, but the mechanisms are unknown. Our novel working hypothesis is that high salt intake drives cortisol production, which in turn, drives obesity. The current study aimed to demonstrate an acute cortisol response following a single high salt meal. Eight participants (age 30.5 ± 9.8 years [mean ± SD], 50% female), consumed high salt (3.82 g; 1529 mg sodium) and low salt (0.02 g; 9 mg sodium) meals in a randomized cross-over design. Urinary and salivary cortisol and plasma adrenocorticotropic hormone (ACTH) demonstrated order effects. When high salt was given second, there was a peak above baseline for urinary cortisol (26.3%), salivary cortisol (9.4%) and plasma ACTH (4.1%) followed by a significant decline in each hormone (treatment*time, F[9, 18] = 2.641, p = 0.038, partial η2 = 0.569; treatment*time, F[12, 24] = 2.668, p = 0.020, partial η2 = 0.572; treatment*time, F[12, 24] = 2.580, p = 0.023, partial η2 = 0.563, respectively), but not when high salt was given first (p > 0.05 for all). These intriguing findings provide partial support for our hypothesis and support a need for further research to elucidate the role of high salt intake in cortisol production and, in turn, in the aetiology of obesity. ACTRN12623000490673; date of registration 12/05/2023; retrospectively registered.

Dietary Diversity and Its Association with Diet Quality and Health Status of European Children, Adolescents, and Adults: Results from the I.Family Study.

Dietary diversity (DD) plays a crucial role in fostering high-quality diets, but its association with health outcomes, particularly body adiposity and non-communicable diseases (NCDs), is inconsistent. This may be due to a lack of a standardized method for estimating DD. Our study investigates the association between two DD indices, namely the dietary diversity score (DDS) and food variety score (FVS), and anthropometric measures, biochemical parameters, and diet quality in a large population sample from the I.Family study across research centers in eight European countries. In our cross-sectional analysis of 3035 participants, DDSs varied among countries, with a higher prevalence in the third DDS tertile among those with higher education. DDS showed a positive association with diet quality across all age groups. Higher DDS tertile individuals showed increased fiber, fruit, and vegetable intake, greater meal frequency, and lower ultra-processed food consumption. No relevant biochemical differences were observed across DDS tertiles, and a higher DDS was associated with lower overweight/obesity prevalence only in adults. No significant associations were found with FVS. Our findings emphasize the need to consider food groups for a more accurate estimation of diet quality. This aligns with studies suggesting DDS alone is not an independent risk factor for obesity in children and adolescents. Public health programs should prioritize food diversity to promote improved nutrition and overall well-being in communities.

Association between precocious puberty and obesity risk in children: a systematic review and meta-analysis.

The aim of this study was to evaluate the potential association between early onset puberty and the risk of different forms of obesity in children. The databases PubMed, EMBASE, Web of Science and Cochrane Library were systematically searched for relevant studies. The odds ratio (OR) and 95% confidence interval (CI) of obesity in precocious puberty were calculated using Stata software 14.0. A fixed-effects model was used if P > 0.1 and I2 ≤ 50%. Otherwise, a random-effects model was used. Publication bias was assessed using funnel plots and Egger's test. The pooling analysis showed that precocious puberty in girls was associated with a higher risk of obesity (OR = 1.98; 95% CI: 1.76-2.24; I2 = 0.00%, P < 0.001). Girls with a history of precocious puberty were found to have an increased risk of general obesity (OR = 2.03; 95% CI: 1.62-2.55; I2 = 22.2%, P < 0.001), central obesity (OR = 1.96; 95% CI: 1.70-2.26; I2 = 0.00%, P < 0.001), and overweight (OR = 2.03; 95% CI: 1.68-2.46; I2 = 5.1%, P < 0.001). The pooled analysis showed that precocious puberty in boys was not associated with an increased risk of obesity (OR = 1.14; 95% CI: 0.86-1.51; I2 = 50.6%, P = 0.369). In boys, the occurrence of precocious puberty was not associated with an elevated risk of general obesity (OR = 0.96; 95% CI: 0.40-2.27; I2 = 79.6%, P = 0.922), central obesity (OR = 1.17; 95% CI: 0.96-1.43; I2 = 0.00%, P = 0.125), or overweight (OR = 1.03; 95% CI: 0.56-1.88; I2 = 74.4%, P = 0.930). This meta-analysis suggests that the onset of puberty at an early age in girls is associated with an increased risk of obesity, however precocious puberty in boy was not associated with an increased risk of obesity. These findings highlight that precocious puberty should be considered an independent risk factor for obesity in girls. CRD42023404479.

The prevalence of underweight and obesity in Chinese children and adolescents with major depressive disorder and relationship with suicidal ideation and attempted suicide.

The high rates of obesity and suicide have become serious public health problems worldwide, especially in children and adolescents with major depressive disorder (MDD). This research aimed to explore the rates of underweight, overweight or obesity, suicidal ideation and attempted suicide in hospitalized children and adolescents with MDD. Then, we analyzed the correlation between underweight or obesity and suicidal ideation and attempted suicide, and finally obtained the independent influencing factors of underweight or obesity. A total of 757 subjects in the Third People's Hospital of Fuyang from January 2020 to December 2021 were enrolled in this study. According to the underweight, overweight and obesity screening table for school-age children and adolescents published and implemented by the health industry standard of China, all subjects were divided into different body mass index (BMI) categories. We measured fasting blood glucose (FBG) and lipid levels in all subjects and assessed suicidal ideation, attempted suicide, and the severity of depressive symptoms. The socio-demographic and clinical data were collected and analyzed by SPSS 22.0. The rates of underweight, overweight, obesity, suicidal ideation and attempted suicide were 8.2% (62/757), 15.5% (117/757), 10.4% (79/757), 17.2% (130/757), and 9.9% (75/757), respectively. Correlation analysis indicated that BMIs level was positively correlated with age, age of first hospitalization, total duration of disease, number of hospitalizations, FBG, TG (triglyceride), TC (total cholesterol), LDL (low density lipoprotein), and negatively correlated with HDL (high density lipoprotein). Binary logistic regression analysis showed that male and high level of HDL were risk factors for MDD inpatients with underweight, while high level of TG was a protective factor. Meanwhile, higher levels of FBG, TG and CGI-S were risk factors and suicidal ideation and high dose of antidepressant drugs were protective factors for obesity in children and adolescents with MDD. The prevalence of underweight, obesity, suicidal ideation and attempted suicide were high in children and adolescents with MDD, and severe depressive symptoms are independent risk factors for obesity, while suicidal ideation and high dose of antidepressants may be protective factors for obesity.

Sugar-sweetened beverage consumption and socioeconomic status: A systematic review and meta-analysis.

Sugar-sweetened beverages (SSB) are an independent risk factor for obesity and other non-communicable diseases. Socioeconomic status (SES) is one of the key drivers for the purchase and consumption of SSBs among children and adults; however, there is a lack of strong evidence. This study aims to determine the association between SES and consumption patterns of SSBs across populations. The review was conducted according to PRISMA guidelines. PubMed, MEDLINE, Scopus, EMBASE, LILACS, Web of Science, Cochrane, and CINHAL databases were searched for relevant articles until 2022. Participants included children, adolescents, and adults who consumed different SSBs and were assessed based on their SES. The random-effects model was used to obtain the pooled odds ratio (OR). Twenty-one studies (152,070 participants) met the inclusion criteria. The risk of bias was assessed using the Newcastle-Ottawa tool, with the majority of the studies indicating medium to high quality. Eight ORs from four studies (34,454 participants) were considered for meta-analysis. Results showed those belonging to high SES had 48% lower odds of consuming the SSBs (OR 0.52; 95% CI: 0.42-0.61; p = 0.017). The overall quality of evidence was ascertained using GRADE criteria, illustrating a moderate certainty of evidence between SSB consumption and SES. Meta-analysis suggests that SES influences the consumption pattern of SSBs, with high SES having lower odds of SSB consumption.

Risk Factors Associated with Postoperative Obesity in Childhood-Onset Craniopharyngioma Patients: A Case-Control Study

Identifying risk factors associated with obesity after craniopharyngioma (CP) resection is pivotal for the prediction and prevention of postoperative obesity. Although multiple elegant studies have investigated this issue, studies focusing on Asian pediatric patients are missing. Herein, we retrospectively analyzed the risk factors associated with obesity after childhood-onset CP surgery in our center, aiming to provide insights into approaches reducing the occurrence of postoperative obesity. The clinical data of 53 children with CP who met the inclusion criteria from July 2011 to August 2020 in our center were collected for retrospective analysis. Univariate and multivariate logistic retrospective analyses were used to identify independent risk factors contributing to postoperative obesity. A review of the available literature reporting the risk factors associated with obesity after CP surgery over the past twodecades was performed for comparison. The median age at diagnosis of this cohort was 11.0years, with a median follow-up of 44.0months (range= 8-119months). Eighteen (34.0%) experienced obesity at the last follow-up. Multivariate logistic regression analysis showed preoperative body mass index standard deviation score (odds ratio [OR], 1.71; 95% confidence interval [CI]: 1.01-2.90; P=0.046), preoperative hypothalamic involvement (OR, 29.38; 95% CI: 1.76-490.66; P=0.019), and age at diagnosis (OR, 0.76; 95% CI: 0.61-0.95; P=0.016) were independent risk factors for obesity after childhood-onset CP resection. Our results combined with previous literature support preoperative body mass index standard deviation score, preoperative hypothalamic involvement, and age at diagnosis are the independent risk factors associated with obesity after childhood-onset CP resection.

Obesity is associated with a distinct brain-gut microbiome signature that connects Prevotella and Bacteroides to the brain’s reward center

ABSTRACT The prevalence of obesity has risen to its highest values over the last two decades. While many studies have either shown brain or microbiome connections to obesity, few have attempted to analyze the brain-gut-microbiome relationship in a large cohort adjusting for cofounders. Therefore, we aim to explore the connection of the brain-gut-microbiome axis to obesity controlling for such cofounders as sex, race, and diet. Whole brain resting state functional MRI was acquired, and connectivity and brain network properties were calculated. Fecal samples were obtained from 287 obese and non-obese participants (males n = 99, females n = 198) for 16s rRNA profiling and fecal metabolites, along with a validated dietary questionnaire. Obesity was associated with alterations in the brain’s reward network (nucleus accumbens, brainstem). Microbial diversity (p = .03) and composition (p = .03) differed by obesity independent of sex, race, or diet. Obesity was associated with an increase in Prevotella/Bacteroides (P/B) ratio and a decrease in fecal tryptophan (p = .02). P/B ratio was positively correlated to nucleus accumbens centrality (p = .03) and negatively correlated to fecal tryptophan (p = .004). Being Hispanic, eating a standard American diet, having a high Prevotella/Bacteroides ratio, and a high nucleus accumbens centrality were all independent risk factors for obesity. There are obesity-related signatures in the BGM-axis independent of sex, race, and diet. Race, diet, P/B ratio and increased nucleus accumbens centrality were independent risk factors for obesity. P/B ratio was inversely related to fecal tryptophan, a metabolite related to serotonin biosynthesis, and positively related to nucleus accumbens centrality, a region central to the brain’s reward center. These findings may expand the field of therapies for obesity through novel pathways directed at the BGM axis.

Joint temporal dietary and physical activity patterns: associations with health status indicators and chronic diseases

Diet and physical activity (PA) are independent risk factors for obesity and chronic diseases including type 2 diabetes mellitus (T2DM) and metabolic syndrome (MetS). The temporal sequence of these exposures may be used to create patterns with relations to health status indicators. The objectives were to create clusters of joint temporal dietary and PA patterns (JTDPAPs) and to determine their association with health status indicators including BMI, waist circumference (WC), fasting plasma glucose, glycated hemoglobin, triglycerides, HDL cholesterol, total cholesterol, blood pressure, and disease status including obesity, T2DM, and MetS in US adults. A 24-h dietary recall and random day of accelerometer data of 1836 participants from the cross-sectional NHANES 2003-2006 data were used to create JTDPAP clusters by constrained dynamic time warping, coupled with a kernel k-means clustering algorithm. Multivariate regression models determined associations between the 4 JTDPAP clusters and health and disease status indicators, controlling for potential confounders and adjusting for multiple comparisons. A JTDPAP cluster with proportionally equivalent energy consumed at 2 main eating occasions reaching ≤1600 and ≤2200kcal from 11:00 to 13:00 and from 17:00 to 20:00, respectively, and the highest PA counts among 4 clusters from 08:00 to 20:00, was associated with significantly lower BMI (P<0.0001), WC (P=0.0001), total cholesterol (P=0.02), and odds of obesity (OR: 0.2; 95% CI: 0.1, 0.5) than a JTDPAP cluster with proportionally equivalent energy consumed reaching ≤1600 and ≤1800kcal from 11:00 to 14:00 and from 17:00 to 21:00, respectively, and high PA counts from 09:00 to 12:00. The joint temporally patterned sequence of diet and PA can be used to cluster individuals with meaningful associations to BMI, WC, total cholesterol, and obesity. Temporal patterns hold promise for future development of lifestyle patterns that integrate additional temporal and contextual activities.

Prevalence of obesity and elevated body mass index along a progression of rurality: A cross-sectional study - The Canadian Longitudinal Study on Aging.

Obesity is an important public health concern, and large studies of rural-urban differences in prevalence of obesity are lacking. Our purpose is to compare body mass index (BMI) and obesity in Canada using an expanded definition of rurality. A cross-sectional analysis of self-reported BMI across diverse communities of Canadians aged 45-85 years was conducted using data from the Canadian Longitudinal Study on Aging (CLSA), a national sample representative of community-dwelling residents. Rurality was identified in the CLSA based on residential postal codes, which were divided into 4 categories: urban, peri-urban, mixed and rural. Logistic regression models were constructed to calculate adjusted odds ratios (aORs) with 95% confidence intervals (95% CIs) between obesity (BMI ≥30 kg/m2 from self-reported weight and height) and rurality, adjusting for age, sex, province, marital status, number of residents in household and household income. Twenty-one thousand one hundred and twenty-six Canadian residents aged 45-85 years, surveyed during 2010-2015, were included. 26.8% were obese. Obesity was less prevalent amongst urban (25.2%) than rural (30.3%, P < 0.0001), mixed (28.7%, P < 0.0001) or peri-urban communities (28.1%, P < 0.0001). When compared to urban areas, the aOR (95% CI) for obesity was 1.09 (1.00-1.20) in rural regions and 1.20 (1.08-1.35) in peri-urban settings. In areas of mixed urban and rural residence, the aOR was 1.12 (0.99-1.27). One in four Canadian adults were obese. Living in a non-urban setting is an independent risk factor for obesity. Rural-urban health disparities could underlie rural-urban differences, but further research is needed.

Eating in the absence of hunger in children with mild sleep loss: a randomized crossover trial with learning effects

While insufficient sleep duration has emerged as a strong, independent risk factor for obesity, the mechanisms remain unclear. One possibility is greater "eating in the absence of hunger" (EAH) or energy intake beyond the point of satiety, when tired. The aim was to determine whether mild sleep loss increases EAH in children. A crossover study was undertaken in 105 healthy children (8-12 y) with normal sleep (∼8-11 h/night). After randomization, children went to bed 1 h earlier (sleep extension) or 1 h later (sleep restriction) than their usual bedtime, over 2 intervention weeks separated by a 1-wk washout. At the end of each intervention week, children underwent an EAH feeding experiment involving a preloading meal until satiation, followed by an ad libitum buffet (of highly palatable snacks) to measure EAH, with each food item weighed before and after consumption. Ninety-three children completed the EAH experiment. There was no evidence of a difference in energy intake from EAH between sleep restriction and extension conditions when analyzed as a crossover design. However, a learning effect was found, with children eating significantly less (-239kJ; 95% CI: -437, -41 kJ; P=0.018) during the preload phase and significantly more (181kJ; 95% CI: 38, 322 kJ; P=0.013) in the ad libitum phase in the second week. No significant differences were seen using an underpowered parallel analysis for energy intake during the ad libitum phase when sleep deprived (106kJ; 95% CI: -217, 431 kJ; P=0.514). Our findings suggest that measuring a difference in eating behavior in relation to sleep proved unsuitable using the EAH experiment in a crossover design in children, due to a learning effect. This trial was registered at the Australian New Zealand Clinical Trials Registry (http://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=367587&isReview=true) as ACTRN12618001671257 .

К вопросу о патогенетических механизмах влияния ожирения на уровень витамина D

The influence of obesity on human health, as a multifactorial and multigenic disorder, is a rather complex, interdisciplinary and at the same time extremely urgent problem of modern society. Vitamin D deficiency is one of the consequences of obesity that negatively affects a person’s life expectancy. Vitamin D deficiency is rightfully considered a silent, non-infectious metabolic pandemic of the 21st century. Its significant role in the functioning of the human body is deep and multifaceted, since vitamin D is an integral regulator of the transcriptional activity of genes that control 3–5% of the human genome. There are ongoing discussions among experts in the medical community about the negative impact of obesity on 25 (OH) D levels, and the opposite hypothesis is also being discussed, where vitamin D deficiency is considered an independent risk factor for obesity. Both external causes of the formation of vitamin D deficiency against the background of excessive deposition of adipose tissue and internal metabolic processes underlying the pathogenetic association are analyzed two pathological conditions.

To the question of the pathogenetic mechanisms of the influence of obesity on the level of vitamin D

The influence of obesity on human health, as a multifactorial and multigenic disorder, is a rather complex, interdisciplinary and at the same time extremely urgent problem of modern society. Vitamin D deficiency is one of the consequences of obesity that negatively affects a person’s life expectancy. Vitamin D deficiency is rightfully considered a silent, non-infectious metabolic pandemic of the 21st century. Its significant role in the functioning of the human body is deep and multifaceted, since vitamin D is an integral regulator of the transcriptional activity of genes that control 3–5% of the human genome. There are ongoing discussions among experts in the medical community about the negative impact of obesity on 25 (OH) D levels, and the opposite hypothesis is also being discussed, where vitamin D deficiency is considered an independent risk factor for obesity. Both external causes of the formation of vitamin D deficiency against the background of excessive deposition of adipose tissue and internal metabolic processes underlying the pathogenetic association are analyzed two pathological conditions.

Increased Sodium Consumption Is Associated With Abdominal Obesity in Older Adults

ObjectivesSodium intake has been widely studied for its role in cardiovascular disease (CVD) and blood pressure (BP) changes. Some studies have suggested that sodium intake is associated with an increased risk of obesity. Although BMI is a common measure of obesity, waist circumference (WC) may serve as a better predictor of increased obesity-related CVD risk. The objective of this study was to examine the association of measures of body fat distribution including body mass index (BMI), WC, waist to hip ratio (WHP), and waist to height ratio (WHT) with sodium intake and BP in older adults. MethodsOne hundred twenty-eight adults aged 65–80 were included in this cross-sectional study. Dietary data was collected through a food frequency questionnaire (110 food items). Anthropometric and BP measurements were also collected. Multiple linear regression analyses were conducted to examine the association of obesity measures with sodium intake and BP levels. One-way ANOVA was used to determine differences in sodium and BP readings between BMI categories (Normal: 18.5–24.9; Overweight: 25.0–29.9 and Obese: 30.0 and above). ResultsWC and WHT were both significantly associated with sodium intake after controlling for age, gender, physical activity, and total calorie intake. Obese individuals consumed significantly more sodium than individuals with normal weight (2834 ± 974 mg in obese individuals; 2172 ± 840 mg in normal weight individuals; P = 0.044). BMI, WC, WHP, and WHT were significantly associated with systolic and diastolic BP. Mean systolic BP was significantly different between individuals with normal BMI and obese BMI (126 ± 16.5 mmHg in normal BMI; 139.7 ± 22.9 mmHg in obese BMI; P = 0.047). The mean diastolic BP showed a statistically significant difference between the normal BMI and overweight individuals (70.9 ± 10.4 mmHg in normal BMI; 79.3 ± 15.2 mmHg in overweight; P = 0.036) but not in obese individuals. ConclusionsHigher sodium consumption was significantly related with higher abdominal body fat mass as measured by WC and WHT in older adults. Higher BMI, WC, WHP, and WHT were also associated with systolic and diastolic BP levels. Our findings suggest that excessive sodium intake is an independent risk factor for obesity in older adults. Funding SourcesNone.

Association between serum 25-hydroxyvitamin D concentrations and obesity in one-year-old Chinese infants.

Recent studies suggested that vitamin D is linked with obesity, but evidence in infants is scarce. Therefore, we aimed to make an exploration in infants. A total of 414 infants at one year old who visited Maternity and Child Health Care Hospital of Wuxi in China were recruited. Finger‐stick blood sampling was conducted in all the subjects, and serum 25‐hydroxyvitamin D [25(OH)D] concentrations were measured. Maternal characteristics during pregnancy and infantile information were collected by questionnaires or extracting from medical records. Multivariable linear models were performed to assess the relationship between 25(OH)D and body mass index (BMI), while multivariable logistic regression models were used to examine the association between 25(OH)D and obesity. Among the 414 infants, 69 (16.67%) and 81 (19.57%) infants were defined as obesity and vitamin D deficiency [25(OH)D < 50 nmol/L], respectively. The mean (SD) of 25(OH)D concentration was 68.05 (19.05) in infants without obesity, which was significantly higher than that of obese infants [60.36(18.49), p = .002]. Inverse linear relationships were observed between 25(OH)D level and BMI (β = −0.017, p = .004) as well as BMI Z‐score (β = −0.010, p = .004). Furthermore, vitamin D deficiency was associated with an increased risk of obesity of infants (adjusted odds ratio = 2.74, 95% confidence interval = 1.20–6.25, with 25(OH)D ≥ 75 nmol/L as a reference). The results showed that serum 25(OH)D concentrations were significantly lower in infants with obesity, suggesting vitamin D deficiency may be an independent risk factor for obesity among one‐year‐old Chinese infants.

Hematological Parameters Characteristics in Children with Obstructive Sleep Apnea with Obesity.

ObjectiveTo investigate the possible correlation between obesity and hematological parameters in children with obstructive sleep apnea (OSA).MethodsA total of 460 children was initially included in our study, which were divided into children with OSA and children without OSA. Multiple analysis was performed for obesity by adjusting confounding factors such as age and gender in 460 children. Further, to minimize the influence of confounding factors and selective bias, propensity score matching (PSM) was performed in children with OSA. Hematological parameters such as inflammatory and coagulable parameters were compared between the normal weight children with OSA and the obese children with OSA following PSM.ResultsOSA (OR = 3.061; P<0.001; 95% CI, 1.772–5.288) represented an independent risk factor for obesity. Besides, the obese children with OSA had higher levels of white blood cell (WBC) (P<0.001), neutrophil (NEUT) (P<0.001), neutrophil-lymphocyte ratio (NLR) (P=0.006), fibrinogen (FIB) (P=0.033), while had a lower level of activated partial thromboplastin time (APTT) (P=0.048). No significant differences were observed in other hematological parameters. In linear regression, the results indicated that the levels of WBC (R2 = 0.123, Beta = 0.289, P<0.001), NEUT (R2 = 0.124, Beta = 0.282, P<0.001), NLR (R2 = 0.105, Beta = 0.184, P=0.026) and FIB (R2 = 0.086, Beta = 0.246, P=0.003) were positively correlated with BMI, while the level of APTT (R2 = 0.057, Beta = −0.171, P=0.044) was significantly negatively correlated with BMI.ConclusionOSA was an independent risk factor contributing to obesity. WBC, NEUT, NLR, FIB and APTT are correlated with obesity in children with OSA (aged from 2 to 14 years). These indicators could be used to estimate the status of inflammation and hypercoagulation in the obese children with OSA.

Gender Modify the Effect of Birth Weight on Later Obesity Risk among Primary School Pupils: A Community-Based Case-Control Study

Background The researchers do not prove the effect of birth weight on childhood obesity, so far. This study aimed at providing evidence on the effect of birth weight on obesity and overweight among primary school pupils. Materials and Methods: This case-control study was conducted on 508 primary school pupils. Multistage sampling technique was applied to increase the accuracy of risk calculation. Pupils were divided into the two groups of case (170 pupils with a Z-score ≥ 1 as overweight and obese) and control (338 pupils with a Z-score between -2 to 1 as not being obese or overweight) based on WHO reference data, For each case, two controls were matched and selected based on age, gender, and type of school. Demographic, physical activity as well as 24-hour dietary program and amount of energy expenditure data were collected. All data analyses were performed using SPSS. Odds ratio with 95% confidence interval was estimated. Results: The risk of obesity and overweight among girls who had a birth weight > 3,500g, was 2.51 times higher than that in girls with a birth weight ≤ 3,500g (OR=2.51, 95% Cl: 1.2-5.25). However, not only this risk among boys was not higher than unity, but also it was less than one showing a reveres not-significant association (OR=0.715, 95% CI: 0. 369-1.39). Conclusion Birth weight was an independent risk factor for obesity and overweight during childhood only among girls. Gender had a moderating effect on the relation between birth weight and obesity during childhood.

Abstract P243: Increased Adiposity And Leptinemia Amongst Women From The Southern Community Cohort Study (SCCS) Exposed To Adverse Childhood Experiences

Exposure to a combination of more than 3 adverse childhood experiences (ACEs) is an independent risk factor for obesity and metabolic syndrome. Since women have a higher risk of developing obesity than men, this study was designed to investigate the effects of ACEs on BMI and adipokines while considering sex and menopausal status. We analyzed 41,226 ACE questionnaires (comprised of 10 questions) from the Southern Community Cohort Study (SCCS). Overall, BMI and plasma adipokines were similar between pre- and post-menopausal women, while men displayed lower BMI and plasma leptin compared with age-matched women (p&lt;0.05). A multiple linear regression analysis was conducted to determine correlations between ACE and sex on the same set of variables. Then, we categorized the samples as low-ACE (0-3) or high-ACE (4 or more) to determine differences in BMI, leptin, and adiponectin. When the data was disaggregated, high-ACE was associated with increased BMI (Prob &gt; F: 0.0183), elevated plasma leptin (Prob &gt; F: 0.0046), and reduced plasma adiponectin (Prob &gt; F:0123). BMI was increased in all high-ACE women, whereas leptin increased while adiponectin reduced in high-ACE pre-menopausal women only (table 1A). Age-matched men did not show a significant effect of ACE on BMI or adipokines (table 1B). Taken together, our data indicate that high-ACE exposure strongly predicts metabolic risk in women, particularly in pre-menopausal status. These outcomes become fundamental to support the use of our mouse model of neglect as a translational tool to address the sex-specific obesogenic response to stress.

Pre-pregnancy BMI, gestational diabetes and different indicators of childhood obesity at the age of four: a prospective cohort study

Objective: To examine the relationship between pre-pregnancy BMI, gestational diabetes (GDM) and different indicators of childhood obesity at the age of 4. Methods: Based on Ma'anshan Birth Cohort Study, singleton children who were born in Ma'anshan of Anhui province from October 2013 to April 2015, were followed for 4 years, consecutively. During the first questionnaire survey, data including pre-pregnancy weight, height and socio-demography were collected. During 24-28 week of gestation, 75 g oral glucose tolerance test was conducted for them. Childhood height, weight, waist circumference and body composition were measured at the age of 4. Comparisons between groups were performed using chi-square test, analysis of variance or t-test. The relationship between pre-pregnancy overweight/obesity, GDM and childhood obesity-related characteristics were analyzed by logistic regression model and generalized linear model analysis. Results: The prevalence rates of overweight and obesity in children at the age of 4 were 13.08% and 6.03%, respectively. After adjustment for characteristics related to mothers and their children, significantly increased risk of obesity (OR=3.27, 95%CI: 2.15-4.98), larger waist circumference (OR=2.32, 95%CI: 1.72-3.14) and higher waist-to-weight ratio (OR=2.29, 95%CI: 1.73-3.02) were seen in the offspring of women with pre-pregnancy overweight/obesity. Body composition (skeletal muscle, body fat, body fat percentage) of the offspring were strongly correlated with pre-pregnancy overweight/obesity of the mothers (P<0.05). Maternal GDM was associated with higher risk of childhood obesity (OR=1.78, 95%CI: 1.14-2.79), on mothers without GDM during pregnancy. However, neither larger waist circumference, or higher waist-to-weight ratio seemed to increase the risk. Moreover, maternal GDM was not associated with body composition measures (skeletal muscle, body fat, body fat percentage). Conclusion: Pre-pregnancy BMI and maternal GDM were independent risk factors for obesity in 4-year-old children, and pre-pregnancy BMI was correlated with various indicators of body composition in children.

The prevalence and independent influencing factors of obesity and underweight in patients with schizophrenia: a multicentre cross-sectional study.

Few studies have investigated the weight of patients with schizophrenia in China. The aim of this study was to analyse the prevalence, clinical characteristics and influencing factors of obesity and underweight in patients with chronic schizophrenia in China. A total of 325 patients with schizophrenia and 172 sex- and age-matched healthy controls from the community were recruited. Socio-demographic data and laboratory measurements were collected for all subjects. Using the Positive and Negative Syndrome Scale (PANSS), we evaluated the psychiatric symptoms of patients with schizophrenia. According to the body mass index (BMI) criteria in China, BMI ≥ 28kg/m2 indicates obesity, and BMI < 18.5kg/m2 indicates underweight. Of the patients with schizophrenia, 16.3% were obese, and 6.8% were underweight; 11.0% of the healthy controls were obese, and 3.5% were underweight. There was no difference between the two groups in the prevalence of obesity and underweight. After controlling for relevant variables, the obesity rate remained non significant, but the underweight rate appeared to be different. The multinomial regression analysis revealed that among the patients with schizophrenia, female sex, triglyceride level and LDL level were independent risk factors for obesity and that HDL level was an independent protective factor against obesity. In contrast, male sex and HDL level were independent risk factors for underweight. We found that the patients with schizophrenia had an increased rate of underweight and some factors related to weight. Level V, descriptive study.

Does vitamin D status predict weight gain or increase in waist circumference? Results from the longitudinal Health 2000/2011 Survey.

To investigate whether vitamin D status predicts weight gain or increase in waist circumference during the 11-year follow-up in general adult population. A population-based longitudinal study. The study was conducted using data from the nationally representative Health 2000/2011 Survey. The analyses were based on regression models adjusted for sociodemographic and lifestyle factors. Weight, waist circumference and vitamin D status (serum 25-hydroxyvitamin D concentration analysed with radioimmunoassay) were measured from 2924 participants aged 30-64 years at baseline. In men, low vitamin D status at baseline predicted ≥10 % increase in waist circumference during the follow-up when adjusted for age only (OR for sufficient v. deficient S-25(OH)D 0·41; 95 % CI 0·25, 0·67; P for trend <0·01), but the association with weight gain was only borderline significant. After adjustment for potential confounders, low vitamin D status remained a significant predictor of increase in waist circumference, but the association with weight gain was further attenuated. In women, vitamin D status at baseline did not predict weight gain or increase in waist circumference. Our results suggest that vitamin D insufficiency may be a risk factor of abdominal obesity among men but not among women. In men, it may also increase the risk of weight gain. Further studies are required to confirm these findings and examine potential mechanisms behind them. There is also a possibility that vitamin D is a biomarker of healthy lifestyle rather than an independent risk factor for obesity.