Body mass index, abdominal fatness and the risk of gallbladder disease

Long-term weight change patterns in American adulthood in relation to gallstones: evidence from NHANES

BACKGROUND

The aim of this study is to investigate the association between weight change patterns across adulthood and gallstones in the United States.

METHODS

The analysis is based on data from participants aged 40-70 years taken from the National Health and Nutrition Examination Survey 2017-2020. Weight status and weight change patterns were categorized based on body mass index at three time points. Weighted logistic regression was used to estimate the association of weight status at the three time points and weight change patterns over the three periods with gallstones.

RESULT

Compared with normal weight, obese status at age 25 was associated with an 86% increased risk of gallstones (OR 1.86, 95%CI 1.07-3.24). No significant associations were observed for underweight or overweight status. Weight status at baseline or 10 years before baseline showed no relation to gallstones. Notably, the stable obese pattern from age 25 to baseline was positively associated with gallstones (OR 1.94, 95%CI 1.03-3.65). A similar association was observed from age 25 to 10 years before baseline (OR 1.92, 95%CI 1.05-3.49). However, weight change patterns from 10 years before baseline to baseline were not significantly associated with gallstone risk. Subgroup analyses revealed stronger associations among females, diabetic individuals, and those with low physical activity.

CONCLUSION

The stable obese pattern starting from early adulthood is associated with an increased risk of gallstones in Americans. Preventing or controlling obesity in early adulthood may be helpful in the primary prevention of gallstones.

Association between sarcopenia and the prevalence of gallstone in US adults: a cross-sectional analysis of NHANES

BACKGROUD

Gallstones are a common disease that imposes a significant burden on public health resources. Sarcopenia is an age-related condition characterized by a decline in muscle mass, strength, and function. However, its relationship with gallstones remains unclear.

METHODS

This cross-sectional study included 2,167 US adults from the National Health and Nutrition Examination Survey. We used the multivariable logistic regression models and restricted cubic spline regression to to assess the relationship between sarcopenia and gallstones. Additionally, subgroup analyses and propensity score matching (PSM) were conducted to account for potential confounding factors.

RESULTS

We found a significant negative association between the sarcopenia index and the prevalence of gallstones (OR: 0.253, 95% CI: 0.132-0.471, P < 0.001). In Model 4, which integrated all covariates, sarcopenia was associated with approximately a 100% increased prevalence of gallstones compared to non-sarcopenia patients (OR: 1.995, 95% CI: 1.340-2.948, P < 0.001). The results of PSM also confirmed the association between sarcopenia and gallstones (OR: 1.982, 95% CI: 1.217-3.285, P = 0.007). Notably, this association was more pronounced in subgroups including females, non-Hispanic whites, married individuals, and higher education level.

CONCLUSION

In summary, our findings suggest a positive association between sarcopenia and the prevalence of gallstones in US adults. This suggests that we should increase the emphasis on gallstone disease screening in sarcopenia patients. However, this finding needs to be validated through further large-scale prospective studies.

Association between relative fat mass and risk of gallstones in adults

Gallstones (GS) are closely associated with obesity. The body mass index (BMI) is the most commonly used index for evaluating obesity. However, BMI does not consider the distribution of adipose tissue and does not differentiate between differences in fat distribution by sex; therefore, BMI only provides a rough indication of overweight status. Relative fat mass (RFM) is an emerging, simple, and low-cost anthropometric index that reflects obesity (particularly abdominal obesity), and is associated with various obesity-related diseases. However, the relationship between the RFM and GS has not yet been explored. Therefore, this study aimed to evaluate the relationship between RFM and the risk of developing GS, the age of patients at the time of their first GS surgery, and to evaluate the predictive value of RFM for the risk of developing GS. Data from the National Health and Nutrition Examination Survey (2017-2020) were used. Logistic regression and dose-response curves were used to analyze the relationship between RFM levels and the prevalence of GS. Multiple linear regression and dose-response curves were used to analyze the relationship between RFM levels and patient age at the time of the first GS surgery. Subgroup analyses further explored the relationship between RFM and age, sex, race, hypertension, and diabetes mellitus. Receiver operating characteristic (ROC) curves were used to analyze the predictive ability of RFM for GS development. Overall, 7978 adults aged ≥ 20 years were included in this study, of whom 828 had a history of GS. After adjusting for potential confounders, each 1-unit increase in RFM was associated with a 9% increase in GS prevalence (odds ratio: 1.09, 95% confidence interval : 1.07, 1.11), with dose-response curves confirming a positive, nonlinear correlation. And the threshold for the effect of RFM on the prevalence of GS was 40.99. Subgroup analyses revealed that the positive correlation between RFM and GS prevalence remained stable in all populations despite subtle differences. The results of the ROC curves suggested that the predictive value of RFM for GS prevalence was superior to that of BMI. In addition, dose-response curves revealed a nonlinear relationship between RFM and patient age at the time of the first GS surgery, and the threshold for the effect of RFM on age at the first GS surgery was 30.99. RFM is closely associated with GS, and in general, higher levels of RFM are associated with a higher risk of GS. RFM is a better predictor of the risk of GS than BMI. Due to the nature of this cross-sectional study, we were unable to determine a causal relationship between the two.

Metabolically Healthy Obesity Is Characterized by a Distinct Proteome Signature

Obesity is commonly associated with metabolic diseases including type 2 diabetes, hypertension, and dyslipidemia. Moreover, individuals with obesity are at increased risk of cardiovascular disease. However, a subgroup of individuals within the obese population presents without concurrent metabolic disorders. Even though this group has a stable metabolic status and does not exhibit overt metabolic disease, this status may be transient; these individuals may have subclinical metabolic derangements. To investigate the latter hypothesis, an analysis of the proteome signature was conducted. Plasma samples from 27 subjects with obesity but without an associated metabolic disorder (obesity only (OBO)) and 15 lean healthy control (LHC) subjects were examined. Fasting samples were subjected to Olink proteomics analysis targeting 184 proteins enriched in cardiometabolic and inflammation pathways. Our results distinctly delineated two groups with distinct plasma protein expression profiles. Specifically, a total of 24 proteins were differentially expressed in individuals with obesity compared to LHC. Among these, 13 proteins were downregulated, whereas 11 proteins were upregulated. The pathways that were upregulated in the OBO group were related to chemoattractant activity, growth factor activity, G protein-coupled receptor binding, chemokine activity, and cytokine activity, whereas the pathways that were downregulated include regulation of T cell differentiation, leukocyte differentiation, reproductive system development, inflammatory response, neutrophil, lymphocyte, monocyte and leukocyte chemotaxis, and neutrophil migration. The study identifies several pathways that are altered in individuals with obesity compared to healthy control subjects. These findings provide valuable insights into the underlying mechanisms, potentially paving the way for the identification of therapeutic targets aimed at improving metabolic health in individuals with obesity.

Relative fat mass as a predictor of gallstones: insights from national health and nutrition examination survey data

BACKGROUND

Gallstones have been linked to obesity. Relative fat mass (RFM) has emerged as a novel obesity index that more precisely represents the body fat distribution. The correlation between RFM and the risk of developing gallstones remains unclear. This study aims to explore the correlation between RFM and the prevalence of gallstones.

METHODS

A cross-sectional analysis was conducted on the data from the NHANES 2017-2020. The correlation between RFM and the formation of gallstones was examined through multivariate logistic regression, receiver operating characteristic (ROC) curve, sensitivity analysis, subgroup analysis, and restricted cubic spline regression.

RESULTS

Among the 12,947 subjects, 1362 were categorized as having gallstones. It was observed that as the quartile range of RFM increased, with a notable rise in the prevalence of gallstones (3.7% vs. 7.5% vs. 9.8% vs. 21.1%, P < 0.001). Logistic and RCS regression analyses indicated a significantly positive linear correlation between RFM and the prevalence of gallstones, even after accounting for confounders potential (adjusted OR = 1.075, 95% CI: 1.050, 1.101). There is still a significant correlation between RFM and the prevalence of gallstones across both subgroup and sensitivity analyses. ROC analysis indicated that RFM (AUC = 0.696, 95%CI: 0.682, 0.711) can serve as a more robust identify for developing gallstones compared to traditional anthropometric indices.

CONCLUSION

This study is the first to provide the evidence of a significantly positive correlation between RFM and the formation of gallstones. However, further prospective studies are needed to validate these findings.

Emerging drivers of female bladder cancer: a pathway to precision prevention and treatment

Purpose

Bladder cancer is a public health concern, with smoking and occupational exposure being major risk factors. However, specific risks in women, particularly hormonal, lifestyle, and environmental factors, are underexplored. This study aimed to assess these risk factors in women, focusing on smoking, occupational exposure, recurrent urinary tract infections (UTIs), body mass index (BMI), menopausal status, and family history of cancer.

Materials and methods

This retrospective cohort study included 850 women diagnosed with bladder cancer (2018-2023) and age-matched controls. Data on smoking, occupational exposure, UTIs, BMI, menopausal status, and family history were collected from medical records: multivariate logistic regression and propensity score matching identified independent risk factors. Subgroup analysis explored interactions between menopausal status and other factors.

Results

Smoking (OR = 2.15, p = 0.002), occupational exposure (OR = 1.89, p = 0.007), and recurrent UTIs (OR = 1.72, p = 0.013) were significant risk factors, particularly in post-menopausal women. Menopausal status amplified the effects of smoking and UTIs but was not an independent predictor. BMI and family history showed no significant associations.

Conclusion

Smoking, occupational exposure, and recurrent UTIs are key risk factors for bladder cancer in women, especially post-menopausal women, highlighting the need for targeted prevention strategies.

Age-period-cohort analysis of gallbladder and biliary diseases epidemiological trends from 1990 to 2021 and forecasts for 2035: a systematic analysis from the global burden of disease study 2021

BACKGROUND

Gallbladder and biliary diseases (GABD) represent prevalent disorders of the digestive system.

METHODS

Data on age-standardized incidence rate (ASIR), age-standardized mortality rate (ASMR), and age-standardized disability-adjusted life years (DALYs) rate (ASDR) were extracted from the Global Burden of Disease (GBD) 2021 study. The estimated annual percentage change (EAPC) was utilized to quantify temporal trends in GABD. Age-period-cohort analysis was conducted to determine the effects attributable to age, period, and birth cohort. Additionally, we projected global trends to 2035.

RESULTS

Globally, GABD incident cases, mortality cases, and DALYs increased by 60.11%, 71.71%, and 56.90%, respectively. However, all corresponding age-standardized rates (ASRs) demonstrated overall downward trends with estimated annual percentage changes (EAPC) of -0.32 (-0.38 to -0.26), -0.95 (-1.08 to -0.83), and - 0.69 (-0.74 to -0.65), respectively. The number of incident cases was higher in females than in males across all age groups. The age effect indicated that older individuals had higher age-specific incidence and death rates. Both period and cohort effects showed declining risk across incidence and mortality. The ASIR and ASMR of GABD are projected to continue decreasing over the next 15 years.

CONCLUSION

GABD continue to pose a significant global public health challenge, particularly affecting women and the elderly population. Consequently, the implementation of effective interventions to mitigate the GABD burden is of paramount importance.

Exploring the association between life's essential 8 and gallstone disease in the US adult population: a population-based study utilizing NHANES data from 2017-2018

BACKGROUND AND OBJECTIVE

Gallstones are a prevalent health issue, with established risk factors such as diet body mass index (BMI) and physical activity. However, the role of Life's Essential 8 (LE8), a composite measure of health behaviors and biological markers, in predicting gallstone risk remains unclear. This study aims to examine the association between LE8 scores and gallstone prevalence in a U.S. adult population.

METHODS

A cross-sectional analysis was conducted on 2836 adults. LE8 scores were categorized into tertiles, and multivariable logistic regression models assessed the relationship between LE8 and gallstones, with additional nonlinear assessment using restricted cubic spline analysis.

RESULTS

Gallstones prevalence was 10.37%, decreasing with higher LE8 scores. The multivariable analysis showed participants in higher LE8 tertiles had significantly lower gallstone risks compared to the lowest tertile. The spline analysis confirmed a significant nonlinear inverse association between LE8 and gallstone risk.

CONCLUSIONS

Higher LE8 scores correlate with a lower prevalence of gallstones, suggesting the potential of LE8 as a predictor of gallstone risk. This emphasizes the value of promoting LE8 components in public health initiatives to reduce gallstone prevalence and medical burden.

Single-port robotic versus single-incision laparoscopic cholecystectomy in patients with BMI ≥ 25 kg/m2: a systematic review and meta-analysis

Previous studies have compared single-port robotic cholecystectomy (SPRC) to single-incision laparoscopic (SILC). However, there is not a systematic review and meta-analysis in patient with BMI ≥ 25 kg/m2 even though higher BMI is a risk factor for gallstone disease, a common indication for cholecystectomy. PubMed, Scopus and Cochrane Library were searched for related literature. Studies and data were extracted by two independent reviewers. Inverse variances weighted mean differences (WMD) with random effects model were used for continues values and odds ratios (OR) with random effects model using the Mantel-Haenszel's formula were used for dichotomous value. Heterogeneity using Higgins I2 and p values were calculated. Sensitivity analysis was performed for operative duration and intraoperative complications. In this meta-analysis, six studies involving a total of 734 patients examined SPRC and SILC. The analysis revealed a statistically significant increase in operative duration for SPRC compared to SILC, with a weighted mean difference of 26.67 min (95% CI 14.99, 38.34; I2 = 93%; Pheterogeneity < 0.00001; Poverall < 0.00001). Regarding conversion to multi-port cholecystectomy (MC), no statistically significant difference was found, yielding an odds ratio of 0.94 (95% CI 0.36, 2.45; I2 = 0%; Pheterogeneity = 0.78; Poverall = 0.89). Intra-operative blood loss showed non-significant differences, with a weighted mean difference of - 16.76 ml (95% CI - 48.56, 15.03; I2 = 78%; Pheterogeneity = 0.03; Poverall = 0.30). Length of hospitalization was significantly reduced by approximately half a day for SPRC compared to SILC, with a weighted mean difference of - 0.52 days (95% CI - 0.89, - 0.14; I2 = 0%; Pheterogeneity = 0.52; Poverall = 0.007). Intra-operative complications did not differ significantly between the techniques, resulting in an odds ratio of 0.59 (95% CI 0.19, 1.81; I2 = 70%; Pheterogeneity = 0.04; Poverall = 0.36). Finally, two studies evaluated bile leak rates, concluding no significant difference with an odds ratio of 0.86 (95% CI 0.39, 1.88; I2 = 23%; Pheterogeneity = 0.25; Poverall = 0.70). Sensitivity analyses indicated that no single study unduly influenced the results for operative duration, while one study was identified as a source of heterogeneity in intra-operative complications. SPRC is associated with longer operative duration, but shorter length of hospitalization in patients with BMI ≥ 25 kg/m2, compared to laparoscopic. Future studies should aim to examine incisional hernias rates as well as determine the long-term outcomes. PROSPERO registration: CRD42024602514.

A causal association between obesity and constipation: a two-sample bidirectional Mendelian randomization study and meta-analysis

Objective

Observational studies suggest a potential link between obesity and constipation, but existing results are conflicting. Therefore, we conducted a Mendelian randomization (MR) study and meta-analysis to assess the causal relationship between obesity and the risk of constipation.

Methods

In this study, independent genetic variants closely related to constipation were acquired from a genome-wide association study (GWAS) to analyze the relationship between genetically predisposed obesity and the risk of constipation. Waist circumference (WC), hip circumference (HC), waist-to-hip ratio (WHR), and body mass index (BMI) were collected from the GWAS. Then, the causal relationship between constipation and obesity was explored using a two-sample MR study in both directions. The robustness of the results was evaluated using sensitivity analysis. Furthermore, a systemic review and meta-analysis were performed to calculate relative risks (RRs) with corresponding 95% confidence intervals (95% CIs). Subgroup analyses stratified by age and obesity degree were completed. To evaluate whether the current studies were affected by unmeasured confounders, E-values of each study were determined.

Results

In MR analysis, the incidence of constipation increased with the increase in BMI [inverse variance-weighted (IVW) odds ratio (OR) = 1.138 (1.029, 1.260), p = 0.012]. In addition, constipation was impacted by WC [IVW OR = 1.220 (1.061, 1.402), p = 0.005]. However, there was no evidence that WHR [IVW OR = 1.833 (0.826, 4.065), p = 0.136] or HC [IVW OR = 0.949, (0.836, 1.077), p = 0.415] has a causal effect on constipation. In reverse MR analysis, there was no evidence supporting the causality between constipation and obesity [BMI IVW OR = 1.010 (0.998, 1.022), p = 0.089; WHR IVW OR = 1.000 (0.946, 1.057), p = 0.994; WC IVW OR = 1.008 (0.995, 1.022), p = 0.217; HC IVW OR = 0.996 (0.982, 1.011), p = 0.626]. In the meta-analysis, 14 eligible articles were included, involving 43,488 subjects. According to the results of the meta-analysis, the risk of obesity and overweight significantly increased the risk of constipation [RR = 1.145 (0.952, 1.376)]. This was consistent with the MR analysis results. Moreover, overweight and obesity were significantly related to a higher constipation risk among children [overweight RR = 1.112 (0.943, 1.312); obesity RR = 1.407 (1.282, 1.544)]. Additionally, overweight in adults could decrease the risk of constipation [RR = 0.940 (0.827, 1.068)]. Nevertheless, no significant association was observed between obesity in adults and the risk of constipation [RR = 1.000 (0.768, 1.303)]. Sensitivity analysis revealed the robustness of our findings.

Conclusion

In this combined MR study and meta-analysis, obesity is associated with an increased risk of constipation. The MR analysis demonstrates the causal relationship between genetically predisposed obesity and the risk of constipation. More research is required to investigate the potential correlation between obesity and the risk of constipation and associated mechanisms.

Elevated metabolic score for visceral fat was associated with increased prevalence of gallstones in American adults: a cross-sectional study

Background

Metabolic Visceral Fat Score (METS-VF) recently introduced is posited to be a superior metric for assessing visceral adipose tissues (VAT) compared to traditional obesity indexes. This study aims to elucidate the correlation between METS-VF and the incidence of gallstones.

Methods

In this cross-sectional study, the data from the National Health and Nutrition Examination Survey (NHANES) during the period from 2013 to 2020 were analyzed. And the correlation between METS-VF and the incidence of gallstones was explored through multivariate logistic regression analysis, receiver operating characteristic (ROC) curve, subgroup analysis and restricted cubic spline (RCS) regression.

Results

This study included 5,975 participants, of whom 645 (10.8%) were gallstone formers. As the quartile range of METS-VF increased, a notable rise in the prevalence of gallstones was observed (3.2% vs. 7.4% vs. 12.1% vs. 20.6%, p < 0.001). Logistic regression analyses indicated a significant positive correlation between METS-VF and the risk of gallstones (OR = 3.075, 95% CI: 2.158, 4.381). Subgroup analyses further revealed a stronger correlation between gallstones and METS-VF in subjects over 50 years old. RCS regression identified a non-linear positive correlation, with an inflection point at 6.698. Finally, the area under the ROC curve (AUC) of METS-VF was significantly larger (AUC = 0.705, 95%: 0.685, 0.725) than those of traditional obesity indexes and other VAT surrogate markers.

Conclusion

This study is the first to reveal a significant positive correlation between the prevalence of gallstones and METS-VF, with METS-VF outperforming other VAT surrogate markers in the diagnosis of gallstones.

Long-term weight patterns and physical activity in gallstones

While obesity, rapid weight loss, and sedentary lifestyles contribute to gallstones, the impacts of long-term weight patterns and physical activity on gallstone risk have not been extensively studied at the population level. Using Korea's population-based health database, we created a cohort of 5,062,154 subjects who received over five consecutive biannual health check-ups from 2002 to 2018. Gallstone risk was calculated using hazard ratios (HRs) based on weight patterns (gain, loss, and cycling) and physical activity. Adjustments were made for covariates, such as body mass index (BMI), waist circumference, diabetes, and life style factors. Subgroup analysis was performed by sex and age groups (< 45 and ≥ 45 years). All groups with weight changes showed increased HRs 1.32 (95% CI 1.07-1.65) for > 20% weight loss, 1.13 (0.96-1.33) for > 20% weight gain, 1.04 (1.02-1.06) for weight cycling, 1.03 (1.01-1.05) for 5-20% weight gain, and 1.02 (1.00-1.04) for 5-20% weight loss. Risk increased with weight loss or gain in underweight or overweight BMI categories, respectively, and in any weight change for normal BMI. Males and older individuals had higher risks with weight loss, while females and younger individuals had higher risks with weight gain. Weight cycling increased risk for both sexes. Regular physical activity reduced gallstone risk in weight changers to levels similar to weight maintainers, with the highest reduction in those with > 20% weight gain (61%) and the lowest in weight cycling (1%). The risks of gallstones associated with weight gain, loss, or cycling can be mitigated by regular physical activity. The risks vary by sex and age.

Low-, moderate-, and high-risk obesity in association with cost drivers, costs over the lifecycle, and life expectancy

BACKGROUND

The prevalence of low-, moderate-, and high-risk obesity has been increasing globally. Our aim was to estimate the societal burden of these three obesity classes in the Austrian population by taking a societal-annual perspective and an individual-life-cycle perspective. Secondly, we sought to identify the respective cost drivers and the effects on life expectancy.

METHODS

We used population-weighted survey data on the distribution of body mass index (BMI) and data on relative risks regarding 83 diseases. Using fractional polynomial regressions, we estimated relative risks per BMI unit for about 30 cost-intensive diseases up to BMI values of 50. The approach for the cost analysis was based on the use of population-attributable fractions applied to direct medical and indirect cost data. Macro-disease-specific data regarding cost factors came from cost-of-illness statistics and administrative sources.

RESULTS

About 8.2% of deaths and 4.6% of health expenditure are attributable to obesity in Austria in 2019, causing 0.61% of GDP loss. A third of annual direct and indirect costs came from class 2 and class 3 obesity. From an individual perspective, life-cycle costs of class 2 and class 3 obesity were 1.9 and 3.6 times the costs of class 1 obesity, respectively. At the age of 45, people with high-risk obesity are about to lose approximately 4.9 life years and 9.7 quality-adjusted life years.

CONCLUSIONS

We have extended the method of population-attributable fractions, allowing us to estimate differences in the life-cycle direct medical and indirect costs between low-, moderate-, and high-risk obesity. We found that the lifetime costs of obesity are strikingly different between obesity classes, which has been veiled in the societal-annual perspective. Our findings provide a foundation for evaluating public health interventions aimed at combating obesity in order to mitigate the escalating individual and societal burden resulting from obesity prevalence and complications in the future.

Associations between novel anthropometric indices and the prevalence of gallstones among 6,848 adults: a cross-sectional study

Background

Traditional anthropometric measures, including body mass index (BMI), are insufficient for evaluating gallstone risk. This study investigated the association between novel anthropometric indices and gallstone risk among 6,848 participants from the National Health and Nutrition Examination Survey in the United States.

Methods

Measures calculated included weight (WT), BMI, waist circumference (WC), waist-to-height ratio (WtHR), conicity index (CI), A Body Shape Index (ABSI), Body Roundness Index (BRI), Abdominal Volume Index (AVI), and Weight-adjusted Waist Index (WWI). Logistic regression and smooth curve fitting assessed the relationships between these indices and gallstones, complemented by receiver operating characteristic (ROC) curve analysis to evaluate their discriminative power.

Results

The results indicated significant differences between study groups, with a positive and independent correlation identified between gallstones and all measures except ABSI. Specifically, per 1 SD increase in WC, WT, BMI, WtHR, and AVI was associated with a 57%, 59%, 52%, 53%, and 53% increased risk of gallstones, respectively. Dose-response analysis confirmed a positive correlation between these indices and gallstone risk. ROC analysis highlighted WtHR and BRI as having superior discriminative abilities (AUC = 0.6703). Further, among participants with a BMI < 30 kg/m2, elevated levels of WT, WtHR, CI, BRI, and WWI significantly increased the risk of gallstones (P < 0.001). Likewise, elevated BMI heightened the risk at low levels of WT, WC, WtHR, BRI, AVI, and CI (P < 0.001).

Conclusion

This study supports the positive association between various anthropometric indicators and gallstones, recommending that newer anthropometric indices be considered more extensively to enhance gallstone prevention and treatment strategies.

Association of education with cholelithiasis and mediating effects of cardiometabolic factors: A Mendelian randomization study

BACKGROUND

Education, cognition, and intelligence are associated with cholelithiasis occurrence, yet which one has a prominent effect on cholelithiasis and which cardiometabolic risk factors mediate the causal relationship remain unelucidated.

AIM

To explore the causal associations between education, cognition, and intelligence and cholelithiasis, and the cardiometabolic risk factors that mediate the associations.

METHODS

Applying genome-wide association study summary statistics of primarily European individuals, we utilized two-sample multivariable Mendelian randomization to estimate the independent effects of education, intelligence, and cognition on cholelithiasis and cholecystitis (FinnGen study, 37041 and 11632 patients, respectively; n = 486484 participants) and performed two-step Mendelian randomization to evaluate 21 potential mediators and their mediating effects on the relationships between each exposure and cholelithiasis.

RESULTS

Inverse variance weighted Mendelian randomization results from the FinnGen consortium showed that genetically higher education, cognition, or intelligence were not independently associated with cholelithiasis and cholecystitis; when adjusted for cholelithiasis, higher education still presented an inverse effect on cholecystitis [odds ratio: 0.292 (95%CI: 0.171-0.501)], which could not be induced by cognition or intelligence. Five out of 21 cardiometabolic risk factors were perceived as mediators of the association between education and cholelithiasis, including body mass index (20.84%), body fat percentage (40.3%), waist circumference (44.4%), waist-to-hip ratio (32.9%), and time spent watching television (41.6%), while time spent watching television was also a mediator from cognition (20.4%) and intelligence to cholelithiasis (28.4%). All results were robust to sensitivity analyses.

CONCLUSION

Education, cognition, and intelligence all play crucial roles in the development of cholelithiasis, and several cardiometabolic mediators have been identified for prevention of cholelithiasis due to defects in each exposure.

Relationship between triglyceride-glucose index and gallstones risk: a population-based study

Background

Globally, gallstones represented a prevalent condition of the digestive system, heavily affected by metabolic dysfunctions such as obesity, dyslipidemia, insulin resistance, and diabetes. The triglyceride-glucose (TyG) index served as an accessible novel indicator for evaluating insulin resistance, offering a precise reflection of metabolic conditions. However, no studies have yet explored their relationship. The link between the TyG and gallstone risk was the primary purpose of this study.

Methods

Utilized data from the public database, the National Health and Nutrition Examination Survey, for the years 2017-2020. The logit model was utilized to elucidate the connection between the TyG and the gallstones risk. The restricted cubic spline (RCS) analysis served to verify any non-linear relationships existing between them. Sensitivity analyses, encompassing both stratified and interaction analyses, were conducted to identify populations of particular interest and assess potential interactions between covariates and the TyG index.

Results

A total of 4544 individuals were included. The risk of gallstones in high group was 1.6 times that of the low group. The potential cut-off value for the TyG index was 6.19. Above this threshold, there was a 40% heightened risk of gallstones with each one-unit increment in the TyG. The RCS analysis revealed the absence of a non-linear association between them. The populations warranting particular focus included those over 60 years, non-White people, individuals with a body mass index ≥25, smokers, drinkers, those with hypertension, and diabetes. Apart from smoking history, alcohol consumption, and history of diabetes, there were no interactions between other variables and the TyG index.

Conclusion

The current study represented the inaugural investigation into the link between TyG index and the risk of gallstones. A positive correlation existed between them, signifying that an increase in TyG paralleled an elevated risk of gallstones. No non-linear relationship has been found between them. Besides, a 40% increase in gallstone risk accompanied each unit rise in TyG. Considering the convenience and accessibility of TyG in clinical settings, it has a promising potential for clinical application.

Association between body roundness index (BRI) and gallstones: results of the 2017-2020 national health and nutrition examination survey (NHANES)

BACKGROUND

Gallstones are associated with obesity, and the BRI is a new obesity index that more accurately reflects body fat and visceral fat levels. The relationship between BRI and gallstone risk is currently unknown, and we aimed to explore the relationship between BRI and gallstone prevalence.

METHODS

A cross-sectional study was conducted utilizing data from the 2017-2020 NHANES involving a total of 5297 participants. To assess the association between BRI and gallstones, we used logistic regression analysis, subgroup analysis, and interaction terms. In addition, we performed restricted cubic spline (RCS) analysis and threshold effects analysis to characterize nonlinear relationships. We assessed the ability of BRI and Body mass index (BMI) to identify gallstones using receiver operating curve (ROC) analysis and area under the curve (AUC), and compared them using the Delong test.

RESULTS

Of the 5297 participants aged 20 years and older included in the study, 575 had gallstones. In fully adjusted models, a positive association between BRI and gallstone prevalence was observed (OR = 1.16, 95% CI: 1.12-1.20, P < 0.0001). Individuals in the highest quartile of BRI had a 204% increased risk of gallstones compared with those in the lowest quartile (OR = 3.04, 95% CI: 2.19-4.22, P < 0.0001). The correlation between BRI and gallstones persisted in subgroup analyses. RCS analyses showed a nonlinear relationship between BRI and gallstones. The inflection point was further found to be 3.96, and the correlation between BRI and gallstones was found both before and after the inflection point. ROC analysis showed that BRI (AUC = 0.667) was a stronger predictor of gallstones than BMI (AUC = 0.634).

CONCLUSIONS

Elevated BRI is associated with an increased risk of gallstones in the U.S. population, and BRI is a stronger predictor of gallstones than BMI. Maintaining an appropriate BRI is recommended to reduce the incidence of gallstones.

Elevated LDL-c may warn of the risk of gallbladder stones in the patients with metabolic dysfunction-associated steatotic liver disease: A case-control study

PURPOSE

This study aimed to explore the relationship between metabolic dysfunction-associated steatotic liver disease (MASLD) and the development of new-onset gallbladder stone disease (GSD) and to identify factors that influence the occurrence of new-onset GSD in patients with MASLD.

METHODS

In this retrospective case-control study, patients who underwent asymptomatic GSD screening during annual routine health check-ups at two hospitals in China between August 2017 and July 2022 were included. Patients with new-onset GSD and controls without GSD were matched 1:1 based on age, sex, race, occupation, diet, drinking habits, systolic blood pressure, diastolic blood pressure, and fasting blood glucose levels.

RESULTS

The study comprised 1200 patients with new-onset GSD and 1200 controls without GSD. Patients with new-onset GSD had higher rates of MASLD (33.8% vs. 22.2 %, P < 0.001) and hypercholesterolemia (12.6% vs. 7.2 %, P < 0.001) compared to controls. Waist circumference (WC) (OR = 1.042, 95 % CI: 1.022-1.063, P < 0.001), high-density lipoprotein cholesterol (HDL-c) (OR = 0.048, 95 % CI: 0.037-0.062, P < 0.001), triglycerides (OR = 0.819, 95 % CI: 0.699-0.958, P = 0.013), and hypercholesterolemia (OR = 5.023, 95 % CI: 2.735-9.225, P < 0.001) were independently associated with new-onset GSD. Among patients with MASLD, WC (OR = 1.075, 95 % CI: 1.026-1.127, P = 0.003), total cholesterol (TC) (OR = 2.094, 95 % CI: 1.259-3.484, P = 0.004), HDL-c (OR = 0.088, 95 % CI: 0.054-0.142, P < 0.001), and low-density lipoprotein cholesterol (LDL-c) (OR = 4.056, 95 % CI: 2.669-6.163, P < 0.001) were independently associated with new-onset GSD.

CONCLUSIONS

The findings indicate that hypercholesterolemia is independently associated with GSD. Among patients with MASLD, hypercholesterolemia also showed an independent association with GSD. Notably, this study is the first to identify serum LDL-c levels as potentially the most significant risk factor for GSD, highlighting that elevated LDL-c could serve as an important indicator for individuals with MASLD.

Association of adiposity with morbidity in Finnish adults: A register-based follow-up study

AIMS

The aims of this study were to update risk estimates of obesity related co-morbidities and to provide evidence of the importance of obesity prevention to decision makers.

METHODS

The study included 25- to 74-year-old participants (N=22,977) of the National FINRISK Studies in 1997, 2002 and 2007. Body mass index was calculated from measured weight and height at baseline. Data on morbidity were ascertained via linkage to the National Hospital Discharge Register, the Cancer Register and the records of the Social Insurance Institution of Finland until the end of year 2018. The Cox proportional hazards model was used to estimate associations between weight status and the risk of the end-point diseases during follow-up, with adjustment for age and smoking.

RESULTS

At baseline, 31% of participants had at least one of the investigated diseases. Overweight, obesity and severe obesity were associated with type 2 diabetes, gout, gallbladder diseases and knee and hip osteoarthritis during the follow-up in both men and women. The risk of coronary heart disease was increased in men who were overweight, obese and severely obese and in women who were obese and severely obese. Risk of asthma was increased only among women who were obese and severely obese. No associations were found between obesity and breast, prostate or colorectal cancer.

CONCLUSIONS

The study showed a strong relationship between excess body weight and the prevalence and incidence of several diseases. Obesity prevention is essential to reduce disease burden in the future.

Application of Data Mining Technology in the Screening for Gallbladder Stones: A Cross-Sectional Retrospective Study of Chinese Adults

PURPOSE

The purpose of this study was to use data mining methods to establish a simple and reliable predictive model based on the risk factors related to gallbladder stones (GS) to assist in their diagnosis and reduce medical costs.

MATERIALS AND METHODS

This was a retrospective cross-sectional study. A total of 4215 participants underwent annual health examinations between January 2019 and December 2019 at the Physical Examination Center of Shengjing Hospital Affiliated to China Medical University. After rigorous data screening, the records of 2105 medical examiners were included for the construction of J48, multilayer perceptron (MLP), Bayes Net, and Naïve Bayes algorithms. A ten-fold cross-validation method was used to verify the recognition model and determine the best classification algorithm for GS.

RESULTS

The performance of these models was evaluated using metrics of accuracy, precision, recall, F-measure, and area under the receiver operating characteristic curve. Comparison of the F-measure for each algorithm revealed that the F-measure values for MLP and J48 (0.867 and 0.858, respectively) were not statistically significantly different (p>0.05), although they were significantly higher than the F-measure values for Bayes Net and Naïve Bayes (0.824 and 0.831, respectively; p<0.05).

CONCLUSION

The results of this study showed that MLP and J48 algorithms are effective at screening individuals for the risk of GS. The key attributes of data mining can further promote the prevention of GS through targeted community intervention, improve the outcome of GS, and reduce the burden on the medical system.

Colesevelam has no acute effect on postprandial GLP-1 levels but abolishes gallbladder refilling

OBJECTIVE

Colesevelam, a bile acid sequestrant approved for the treatment of hypercholesterolaemia, improves glycaemic control in type 2 diabetes. We hypothesised that single-dose colesevelam increases postprandial GLP-1 secretion, thus, reducing postprandial glucose excursions in individuals with type 2 diabetes. Further, we explored the effects of single-dose colesevelam on ultrasonography-assessed postprandial gallbladder motility, paracetamol absorption (proxy for gastric emptying), and circulating factors known to affect gallbladder motility.

METHODS

In a randomised, double-blind, placebo-controlled crossover study, 12 individuals with type 2 diabetes (mean ± SD: age 61 ± 8.8 years; body mass index 29.8 ± 3.0 kg/m2) were subjected to 4 mixed meal tests on separate days; 2 with orally administered colesevelam (3.75 g) and 2 with placebo, with intravenous infusion of the GLP-1 receptor antagonist exendin(9-39)NH2 or saline.

RESULTS

Single-dose colesevelam had no effect on postprandial concentrations of glucose (P = .786), C-peptide (P = .440), or GLP-1 (P = .729), and exendin(9-39)NH2 administration revealed no GLP-1-mediated effects of colesevelam. Colesevelam did not affect gallbladder emptying but abolished gallbladder refilling (P = .001), increased postprandial cholecystokinin (CCK) secretion (P = .010), and decreased postprandial serum concentrations of fibroblast growth factor 19 (FGF19) (P = .035) and bile acids (P = .043).

CONCLUSION

Single-dose colesevelam had no effect on postprandial GLP-1 responses or glucose tolerance but disrupted postprandial gallbladder refilling by increasing CCK secretion and reducing circulating concentrations of FGF19 and bile acids. These findings leave the antidiabetic actions of colesevelam unresolved but provide mechanistic insights into its effect on gallbladder motility.

[New Progress in Longitudinal Research on the Risk Factors for Cholelithiasis]

Cholelithiasis is a common disease of the digestive system. The risk factors for cholelithiasis have been reported and summarized many times in the published literature, which primarily focused on cross-sectional studies. Due to the inherent limitations of the study design, the reported findings still need to be validated in additional longitudinal studies. Moreover, a number of new risk factors for cholelithiasis have been identified in recent years, such as bariatric surgery, hepatitis B virus infection, hepatitis C virus infection, kidney stones, colectomy, osteoporosis, etc. These new findings have not yet been included in published reviews. Herein, we reviewed the 101 cholelithiasis-associated risk factors identified through research based on longitudinal investigations, including cohort studies, randomized controlled trials, and nested case control studies. The risk factors associated with the pathogenesis of cholelithiasis were categorized as unmodifiable and modifiable factors. The unmodifiable factors consist of age, sex, race, and family history, while the modifiable factors include 37 biological environmental factors, 25 socioenvironmental factors, and 35 physiochemical environmental factors. This study provides thorough and comprehensive ideas for research concerning the pathogenesis of cholelithiasis, supplying the basis for identifying high-risk groups and formulating relevant prevention strategies.

Obesity Is Associated with Altered Rectal Sensitivity in Chronic Constipation

BACKGROUND

Defecation dysfunction may contribute to chronic constipation (CC), but the impact of obesity on anorectal physiology in CC remains unclear. We aimed to evaluate the relationship between obesity and anorectal function on physiologic testing in patients presenting with CC.

METHODS

This was a retrospective cohort study of consecutive adults who underwent high resolution anorectal manometry (HRAM) at a tertiary center for CC. Patient demographics, clinical history, surgical/obstetric history, medications, and HRAM results were reviewed. Patients were classified into obese (BMI > 30 kg/m2) vs non-obese (BMI < 30 kg/m2) groups at the time of HRAM. Fisher-exact/student t-test for univariate analyses and general linear regression for multivariable analysis were performed.

RESULTS

383 adults (mean 50.3 years; 85.8% female) with CC were included. On HRAM, patients with obesity had lower anal sphincter resting tone (37.3 vs 48.5 mmHg, p = 0.005) and maximum squeeze pressure (104.8 mmHg vs 120.0 mmHg, p = 0.043). No significant differences in dyssynergia (61% vs 53%, p = 0.294) and failed balloon expulsion (18% vs 25%, p = 0.381) were found between obese and non-obese groups. On balloon distention testing, the maximum tolerated (163.5 vs 147.6 mL, p = 0.042) and urge sensation (113.9 vs 103.7 mL, p = 0.048) volumes were significantly increased among patients with obesity. After adjusting for potential confounders, obesity remained independently associated with increased maximum tolerated volume (β-coefficient 13.7, p = 0.049).

CONCLUSION

Obesity was independently associated with altered rectal sensitivity among patients with CC. Altered rectal sensation may play an important role in CC among patients with obesity. Anorectal physiology testing should be considered to understand the pathophysiology and guide management.

Towards an adiposity-related disease framework for the diagnosis and management of obesities

Obesity is a complex disease that relapses frequently and associates with multiple complications that comprise a worldwide health priority because of its rising prevalence and association with numerous complications, including metabolic disorders, mechanic pathologies, and cancer, among others. Noteworthy, excess adiposity is accompanied by chronic inflammation, oxidative stress, insulin resistance, and subsequent organ dysfunction. This dysfunctional adipose tissue is initially stored in the visceral depot, overflowing subsequently to produce lipotoxicity in ectopic depots like liver, heart, muscle, and pancreas, among others. People living with obesity need a diagnostic approach that considers an exhaustive pathophysiology and complications assessment. Thus, it is essential to warrant a holistic diagnosis and management that guarantees an adequate health status, and quality of life. The present review summarizes the different complications associated with obesity, at the same time, we aim to fostering a novel framework that enhances a patient-centered approach to obesity management in the precision medicine era.

The Medical Burden of Obesity and Overweight in the US Military: Association of BMI with Clinically Diagnosed Medical Conditions in United States Military Service Members

BACKGROUND

A high BMI is associated with various medical conditions, notably type 2 diabetes, cardiovascular disease, and mental health disorders. In the US military, BMI increased linearly between 1975 and 2015.

OBJECTIVE

This cross-sectional study investigated the associations between BMI and a comprehensive range of clinically diagnosed medical conditions (CDMCs) in US military service members (SMs).

METHODS

A stratified random sample of SMs (n=26,177) completed an online questionnaire reporting their height, weight, and demographic/lifestyle characteristics. Medical conditions for 6 mo before questionnaire completion were obtained from a comprehensive military electronic medical surveillance system and grouped into 39 CDMCs covering both broad (largely systemic) and specific medical conditions. BMI was calculated as weight/height2 (kg/m2). The prevalence of CDMCs was compared among normal weight (<25.0 kg/m2), overweight (25.0-29.9 kg/m2), and obese (≥30 kg/m2) SMs.

RESULTS

After multivariable adjustment for demographic/lifestyle characteristics, higher BMI was associated with higher odds of a diagnosed medical condition in 30 of 39 CDMCs, with all 30 displaying dose-response relationships. The 5 major CDMCs with the largest odds ratios comparing obese to normal weight were endocrine/nutritional/metabolic diseases (OR=2.67, 95%CI=2.24-3.15), nervous system diseases (odds ratio [OR]=2.59, 95%CI=2.32-2.90), circulatory system diseases (OR=2.56, 95%CI=2.15-3.06), musculoskeletal system diseases (OR=1.92, 95%CI=1.76-2.09), and mental/behavioral disorders (OR=1.69, 95%CI=1.51-1.90). Compared with normal weight SMs, overweight or obese SMs had a higher number of CDMCs (1.8±1.9 vs. 2.0±2.0 and 2.5±2.3, mean ± standard deviation, respectively, P<0.01).

CONCLUSIONS

In a young, physically active population, higher BMI was associated with a host of medical conditions, even after adjustment for demographic/lifestyle characteristics. The US Department of Defense should improve nutrition education and modify other factors that contribute to overweight and obesity. This study demonstrates that the medical burden of obesity is substantial in overweight and obese SMs.

Hypertriglyceridaemic waist phenotype and waist circumference triglyceride index are associated with higher incidence of acute pancreatitis: a nationwide population-based retrospective cohort study

OBJECTIVES

The hypertriglyceridaemic waist (HTGW) phenotype, an indicator to assess metabolic syndrome, could be a useful predictive marker for the risk of acute pancreatitis. This study aimed to evaluate the association between the HTGW phenotype and the risk of acute pancreatitis with a nationwide population-based cohort.

DESIGN

A retrospective, nationwide cohort study.

SETTING

Registry of health check-up result from Korean National Health Insurance Service.

PARTICIPANTS

A total of 3 912 551 adults who underwent health checkups under the National Health Insurance Service in 2009 were enrolled in this study.

INTERVENTIONS

Subjects with both increased waist circumference (WC) and elevated blood triglyceride concentrations were defined as the HTGW phenotype. The participants were divided into four groups, classified as NWNT (normal WC-normal triglycerides), EWNT (elevated WC-normal triglycerides), NWET (normal WC-elevated triglycerides) and HTGW. The WC triglyceride index (WTI) is a quantitative indicator of the HTGW phenotype which is calculated by multiplying WC (cm) by triglyceride levels (mmol/L).

PRIMARY OUTCOME MEASURE

The subjects were followed until 31 December 2018. The adjusted HRs of acute pancreatitis in each group were estimated.

RESULTS

During the follow-up, there were a total of 8933 of acute pancreatitis occurrences. The incidence of acute pancreatitis in all subjects was 0.278 per 1000 person-year. The HTGW group had the highest incidence (0.444), followed by the NWET (0.381), and EWNT (0.316) groups. The HTGW group had a significant higher incidence of acute pancreatitis than the NWNT groups (HR 1.364 (95% CI 1.279 to 1.454)). The risk of acute pancreatitis steadily increased as the WTI increased (HR 1.847 (95% CI 1.657 to 2.058) in 10th decile).

CONCLUSIONS

The HTGW phenotype is confirmed to be an independent risk factor that increases the risk of acute pancreatitis.

Causal relationships between obesity and pancreatobiliary diseases: a two-sample Mendelian randomization study

Previous observational studies have investigated the relationship between obesity and the biliary tract and pancreas. The causality, however, is still to be confirmed. This study was designed to explore the causality between obesity which included body mass index(BMI), circumference (WC), hip circumference (HC) and waist-to-hip ratio (WHR), and pancreatobiliary diseases with a Two-Sample Mendelian Randomization(MR) analysis. single-nucleotide polymorphisms used in our study were derived from genome-wide association studies (GWAS). The inverse variance weighted was the dominated method to evaluate the causality. The heterogeneity was validated by Cochran's Q test. The pleiotropy was validated by MR-Egger regression and MR-PRESSO. The stability and reliability of the results were illustrated by the 'leave-one-out'sensitivity analysis. The MR results explored positive causal effects of BMI (OR: 1.021; 95% CI: from 1.016 to 1.027; P = 4.25 × 10^-15) and WC (OR: 1.021; 95% CI: from 1.015 to 1.028; P = 1.65 × 10^-10) on pancreatobiliary diseases. However, no causality existed between HC, WHR and pancreatobiliary diseases. This study reminded that general obesity and abdominal obesity required weight loss to prevent pancreatic biliary disease.

A Body Shape Index and Its Changes in Relation to All-Cause Mortality among the Chinese Elderly: A Retrospective Cohort Study

Although recent evidence has revealed that a body shape index (ABSI) is correlated with the incidence of death among different ethnicities, there remains a paucity of studies investigating the impact of ABSI on mortality within the Chinese elderly. Our objective was to ascertain the link between ABSI, as well as its alterations over time, and all-cause mortality among Chinese aged 65 y and above. A total of 3789 participants were enrolled from the Chinese Longitudinal Healthy Longevity Survey (CLHLS). Cox regressions and restricted cubic splines were employed to assess the association of ABSI and relative changes with all-cause mortality. When nonlinearity was detected, a restricted cubic spline regression was subsequently conducted to compute hazard ratios and 95% confidence intervals. The median survival time was 46 months, and 1342 individuals (35.4%) were reported to have died. ABSI contributed independently to rising death rates among Chinese old populations according to univariate and multivariate Cox regressions. Statistically significant associations were also found stratified by age, sex, and lifestyle. A U-shaped association of ABSI changes with all-cause mortality (p = 0.027) was observed, indicating that old adults with stable ABSI during the follow-up period experienced the lowest risk of mortality. After multivariable adjustment, participants with a 10% reduction in ABSI changes had an increased 9.4% risk of death, while participants with a 10% rise in ABSI changes had an increased 1.9% risk. ABSI and its changes are predictors for all-cause mortality among the elderly Chinese population, which emphasizes the clinical importance of monitoring ABSI and keeping it stable over time.

Gallstone and Gallbladder Disease: Biliary Tract and Cholangiopathies

Cholestatic liver diseases are named primarily due to the blockage of bile flow and buildup of bile acids in the liver. Cholestasis can occur in cholangiopathies, fatty liver diseases, and during COVID-19 infection. Most literature evaluates damage occurring to the intrahepatic biliary tree during cholestasis; however, there may be associations between liver damage and gallbladder damage. Gallbladder damage can manifest as acute or chronic inflammation, perforation, polyps, cancer, and most commonly gallstones. Considering the gallbladder is an extension of the intrahepatic biliary network, and both tissues are lined by biliary epithelial cells that share common mechanisms and properties, it is worth further evaluation to understand the association between bile duct and gallbladder damage. In this comprehensive article, we discuss background information of the biliary tree and gallbladder, from function, damage, and therapeutic approaches. We then discuss published findings that identify gallbladder disorders in various liver diseases. Lastly, we provide the clinical aspect of gallbladder disorders in liver diseases and ways to enhance diagnostic and therapeutic approaches for congruent diagnosis. © 2023 American Physiological Society. Compr Physiol 13:4909-4943, 2023.

Higher visceral adiposity index was associated with an elevated prevalence of gallstones and an earlier age at first gallstone surgery in US adults: the results are based on a cross-sectional study

Objective

We sought to evaluate the association between visceral adiposity index (VAI) and the incidence of gallstones and the age at first gallstone surgery in adults in the United States.

Methods

We selected individuals from the National Health and Nutrition Examination Survey (NHANES) database from 2017 to 2020 and evaluated the association between VAI and gallstone incidence and age at first gallstone surgery using logistic regression analysis, subgroup analysis, and dose-response curves.

Results

A total of 7,409 participants aged >20 years were included in our study; 767 had a self-reported history of gallstones. After adjustment for all confounding factors, for each unit of VAI after Ln conversion, gallstone prevalence increased by 31% (OR = 1.31, 95% CI: 1.17, 1.48), while the first gallstone surgery was 1.97 years earlier (β = -1.97, 95% CI: -3.35, -0.42). The dose-response curves showed a positive correlation between VAI and gallstone prevalence. There was a negative correlation between increased VAI and age at first gallstone surgery.

Conclusion

A higher VAI is positively associated with the prevalence of gallstones and may lead to an earlier age at first gallstone surgery. This is worthy of attention, although causality cannot be established.

Colangiopancreatografía endoscópica asistida por laparoscopia para el tratamiento de coledocolitiasis en pacientes con Y de Roux

Introducción. Los pacientes con antecedente de baipás gástrico que presentan coledocolitiasis no pueden ser tratados con la técnica convencional de colangiopancreatografía retrógrada endoscópica. En estos casos, la vía transgástrica abierta o asistida por laparoscopia, se convierte en una excelente alternativa a la exploración abierta de la vía biliar. Métodos. Estudio retrospectivo que incluyó pacientes adultos con coledocolitiasis y antecedente de gastrectomía subtotal o baipás gástrico con Y de Roux, llevados a colangiopancreatografía endoscópica transgástrica laparoasistida, entre enero de 2019 y diciembre de 2021, en la Clínica CES de Medellín, Colombia. Resultados. Se encontraron siete pacientes, todos con antecedente de baipás gástrico para el manejo de la obesidad. La tasa de identificación y canulación de la vía biliar y extracción de cálculos fue del 100 % mediante el abordaje transgástrico laparo-asistido. Conclusión. De acuerdo con varias revisiones sistemáticas, esta técnica es relativamente fácil de implementar y segura, presentando una tasa de complicaciones inferior a 5 %. Se propone una variante de esta técnica.

Association between metabolically healthy overweight/obesity and gallstones in Chinese adults

BACKGROUND

Metabolic syndrome and obesity are risk factors for gallstones. However, these two factors often occur together, and few studies have focused on the association between metabolically healthy overweight/obesity (MHOW/MHO) and gallstones. We hypothesized that MHO individuals would be associated with the prevalence of gallstones.

METHODS

This cross-sectional study included 125,668 participants aged 18-80 years at the Health Promotion Center of Run Run Run Shaw Hospital, Zhejiang University School of Medicine during 2017-2019 years. Each participant underwent a comprehensive health checkup. Gallstones were diagnosed by abdominal ultrasonography. Metabolically health was defined as not meeting the diagnostic criteria for metabolic syndrome (MetS). Obesity was measured by BMI. MetS and weight stratification were combined to classify the metabolism-obesity phenotypes. Logistic regression models were used to estimate adjusted odds ratios (ORs) and 95% CIs.

RESULTS

Among 125,668 participants, 5486 (4.4%) had gallstones. 21407 (17.0%) were MHOW individuals, and 3322 (2.6%) were MHO individuals. MHOW (OR 1.40; 95%CI: 1.29-1.53) and MHO (OR 1.80; 95%CI: 1.53-2.12) participants were at higher risk of gallstones and had larger and more numerous gallstones than metabolically healthy normal weight participants. Obesity, MetS, premenopausal women and advanced age were significantly associated with the prevalence of gallstones.

CONCLUSIONS

MHOW/MHO individuals exhibited a higher risk of gallstones. In metabolically healthy individuals, the risk of gallstones increased with increasing BMI. Thus, obesity was associated with the prevalence of gallstones, even in relatively metabolically healthy adults.

Benign gallbladder disease is a risk factor for colorectal cancer, but cholecystectomy is not: A propensity score matching analysis

Background

Previous studies reported controversial results on the relationship between cholecystectomy (CHE) and colorectal cancer (CRC). We hypothesized that gallbladder disease (GBD), instead of cholecystectomy, increased the risk of CRC. We aimed to investigate the incidence of benign gallbladder disease (BGBD) and CHE in CRC patients and local adults undergoing annual health examination by analyzing large data from a tertiary hospital in southwest China.

Methods

A propensity score matching (PSM) analyzed, retrospective study from January 1, 2013, to August 31, 2020, including 7,471 pathologically confirmed CRC patients and 860,160 local annual health examination adults in the First Affiliated Hospital of Chongqing Medical University, was conducted. The prevalence of BGBD and the CHE rate were analyzed before and after a 1:1 PSM.

Results

Of the 7,471 CRC patients, 7,160 were eligible for the case group. In addition, 860,160 local health examination adults were included for comparison. The incidence of BGBD was higher in the CRC patients than in the local adults (19.2% vs. 11.3%, P < 0.001), but no significant difference in CHE rate existed between the case group and the control group (5.0% vs. 4.8%, P = 0.340). In the subgroup analysis, patients with BGBD had a higher risk of colon cancer than rectal cancer (20.4% vs. 18.2%, P = 0.024) and more significantly in the right colon (P = 0.037). A weakly positive correlation between CHE and right colon cancer was observed before PSM but no longer existed after PSM (P = 0.168).

Conclusions

Benign gallbladder disease was positively correlated with colorectal cancer, especially right colon cancer. Cholecystectomy did not increase the risk of colorectal cancer.

The increasing incidence and high body mass index-related burden of gallbladder and biliary diseases-A results from global burden of disease study 2019

BACKGROUND

Gallbladder and biliary diseases are common gastrointestinal conditions associated with huge socioeconomic costs and are considered risk factors for cardiovascular diseases and digestive system cancers. The prevalence and incidence of gallbladder and biliary diseases have not received enough attention from 1990 to 2019. Several non-communicable diseases were associated with the incidence of gallbladder and biliary diseases. It is necessary to clarify the change in the incidence and disability burden of gallbladder and biliary diseases worldwide.

METHODS

Data on high body mass index (BMI)-related disease burden and incidence, years of life lost prematurely, and years lived with disability (YLDs) due to gallbladder and biliary diseases were obtained from the Global Burden of Disease 2019. The estimated annual percentage change was calculated to qualify the gallbladder and biliary disease burden change.

RESULTS

The global age-standardized incidence rate has increased from 585.35 per 100,000 (95% UI: 506.05-679.86) in 1990 to 634.32 per 100,000 (95% UI: 540.21-742.93) in 2019. And the increase in incidence was positively correlated with rising high BMI-related summary exposure value. The high BMI-related YLDs of gallbladder and biliary diseases have increased worldwide over time. Globally, the 25-49 age group suffered a rapid rise in incidence and high BMI attributable to the YLDs rate of gallbladder and biliary diseases.

CONCLUSION

The global incidence and high BMI-related YLDs of gallbladder and biliary diseases remain prominent to increase over the past 30 years. Notably, the incidence and high BMI-related YLDs among people aged 25-49 years have rapidly increased over time. Therefore, high BMI should be emphasized in strategic priorities for controlling gallbladder and biliary diseases.

The clinical significance of body mass index in the early evaluation of acute biliary pancreatitis

Objective

Obesity has increased across the globe in recent years and is considered an established risk factor for many diseases. The main objective was to investigate the early assessment value of Body Mass Index (BMI) in the prediction of severity in acute biliary pancreatitis (ABP) and by using BMI to evaluate the severity of ABP.

Methods

The retrospective analysis was designed to assess the relationship between Body Mass Index and the severity of acute pancreatitis in Beijing Jishuitan Hospital from January 2019 to December 2021. The SPSS 24.0 software was used for statistical analysis, Logistic Regression, and ROC curve for the factors affecting the severity of acute biliary pancreatitis.

Results

A total of 259 ABP patients were analyzed in our study. The BMI was significantly correlated with the Ranson scoring and MCTSI scoring (p = 0.000, 0.000). The difference in BMI in different severity of ABP patients was statistically significant (p = 0.000). The Logistic Regression analyses confirmed that BMI was an independent risk factor for the severity of ABP (p = 0.035). Combined detection of BMI, WBC, serum calcium, and SAMY in prognosis of the severity of acute pancreatitis positive rate is higher than single positive rate.

Conclusion

The BMI gradually increased with the severity of acute pancreatitis and was an independent risk factor for the condition. Combined detection of BMI and medical tests can effectively improve acute pancreatitis patients' clinical diagnostic accuracy and early treatment, and help to reduce complications.

Laparoscopic Cholecystectomy Operative Time and Hospital Stay Differences Between Sicklers and Non-sicklers: A Five-Year Comparative Cross-Sectional Study at King Abdulaziz Medical City, Jeddah

Background Sickle cell disease (SCD) is one of the most important hemoglobinopathies that result in the formation of pigment gallstones. Laparoscopic cholecystectomy (LC) is a safe surgical procedure for gallstones in SCD. Currently, there is no standard or guidelines for the preoperative preparation of these patients. This study aims to estimate the difference in pre-operative length of stay, operative time, postoperative length of stay, and total hospitalization length of stay among patients with and without SCD in a tertiary hospital in Jeddah, Saudi Arabia. Such knowledge would aid in establishing a standard for the preoperative preparation of SCD patients for LC. Methods Data from all patients undergoing laparoscopic cholecystectomy between January 2013 and December 2018 were collected retrospectively with a comparative cross-sectional study design. Data included age, sex, BMI, clinical presentation, mode of admission (elective or emergency), preoperative length of stay, operative time, postoperative length of stay, total hospitalization length of stay, and type of surgery (day or inpatient). JMP 15.2.1 was used for statistical analysis. Results From 2013 to 2018, 793 patients underwent LC, and of those, 16 (2.018%) were SCD patients. The results showed significant differences in preoperative (p<0.001), postoperative (p<0.001), and total hospitalization stay time (p<0.001) between the SCD patients and non-SCD patients. However, the data show no significant difference in the operative time of LC between the two studied groups. Conclusion SCD is the most common hemoglobinopathy-causing gallstone. Challenges in these patients are mainly in peri-operative management. Further prospective cohort studies are needed to create a standardized approach for peri-operative management of SCD patients to facilitate delivery of the same level of care and shorten total hospitalization time.

Multidisciplinary Progress in Obesity Research

Obesity is a chronic disease that endangers human health. In recent years, the phenomenon of obesity has become more and more common, and it has become a global epidemic. Obesity is closely associated with many adverse metabolic changes and diseases, such as insulin resistance, type 2 diabetes mellitus, coronary heart disease, nervous system diseases and some malignant tumors, which have caused a huge burden on the country's medical finance. In most countries of the world, the incidence of cancer caused by obesity is increasing year on year. Diabetes associated with obesity can lead to secondary neuropathy. How to treat obesity and its secondary diseases has become an urgent problem for patients, doctors and society. This article will summarize the multidisciplinary research on obesity and its complications.

Underweight Is Associated with a Higher Risk of Acute Pancreatitis in Type 2 Diabetes: A Nationwide Cohort Study

Type 2 diabetes is known as a risk factor for acute pancreatitis, but the risk of acute pancreatitis according to glycemic status and body mass index (BMI) has remained unknown. Therefore, we aim to investigate the risk of acute pancreatitis according to BMI and glycemic status. We included 3,912,496 subjects from the Korean National Health Insurance System cohort who underwent the National Health Screening program in 2009. Each subject’s clinical course was examined through follow-ups until December 2018. BMI and glycemic status were each categorized into five groups. Hazard ratios (HRs) of acute pancreatitis according to BMI and glycemic status were calculated. The adjusted HRs of acute pancreatitis were the highest in the underweight group (BMI < 18.5) in all five glycemic status categories. The HR of acute pancreatitis in the underweight group increased as the glycemic status worsened, excluding the category of diabetes for more than five years (HR 1.381 for normal fasting glucose; 1.805 for impaired fasting glucose; 2.332 for new-onset diabetes; 4.51 for diabetes duration <5 years; 4.135 for diabetes duration ≥5 years). We found that the risk of acute pancreatitis was further increased in the underweight group, depending on the status and duration of type 2 diabetes.

The role of diet and nutrition related indicators in biliary diseases: an umbrella review of systematic review and meta-analysis

BACKGROUND

Diet and nutrition, as a modifiable risk factor, have been demonstrated to play a significant role in the etiology of biliary diseases, whereas few comprehensive studies have been able to evaluate the strength and quality of these evidence. This umbrella review aims to evaluate the evidence pertaining risk factors for biliary diseases in terms of diet and nutrition-related indicators.

METHODS

An umbrella review method was adopted: evidence from observational studies up to 22 November 2021 were identified using PubMed, Web of Science, the Cochrane database, as well as manual screening. Eligible systematic reviews and meta-analyses were screened according to inclusion and exclusion criteria. The inclusion criteria were: (1) meta analysis or systematic review; (2) The theme of the study is the relationship between diet or nutrition and biliary tract diseases; (3) Summarized and reported OR, RR or HR values and corresponding 95% CI; (4) No restrictions on the use of participants and languages; (5) Only extract the data of biliary tract diseases from multiple health outcomes; (6) Only the most recent studies on the same subject were included. This study had been registered at PROSPERO (CRD42021293908). For each eligible systematic review and meta-analysis, we extracted the data of general characteristics and the main findings. The methodological quality of the meta-analyses included in our study were assessed by AMSTAR2 and the quality of evidence was evaluated by the GRADE.

RESULTS

A total of 323 articles were searched, among which 24 articles with 83 unique outcomes were identified as eligible. 35 of these outcomes were downgraded in GRADE evaluation as they reported heterogeneity. In short, among 83 unique outcomes, 5 were rated as moderate, 16 as low, and the rest as very low. For the prevention of biliary tract diseases, emphasis should be placed on appropriately increasing the intake of fruits, vegetables, coffee and tea, and reducing the intake of alcohol, raw fish and foods with high nitrate. Meanwhile, weight, blood sugar and lipid levels should be controlled, and diabetes should be actively prevented and treated. Drinking is not recommended to prevent gallstones, although studies have shown that it may reduce the risk of cholecystolithiasis.

CONCLUSIONS

Our study summarizes the current multifaceted evidence on the relationship between dietary and nutritional indicators and biliary diseases, but the quality of all evidence was not high. Evidence from additional high-quality prospective studies are needed in the future.

Physiological Changes and Pathological Pain Associated with Sedentary Lifestyle-Induced Body Systems Fat Accumulation and Their Modulation by Physical Exercise

A sedentary lifestyle is associated with overweight/obesity, which involves excessive fat body accumulation, triggering structural and functional changes in tissues, organs, and body systems. Research shows that this fat accumulation is responsible for several comorbidities, including cardiovascular, gastrointestinal, and metabolic dysfunctions, as well as pathological pain behaviors. These health concerns are related to the crosstalk between adipose tissue and body systems, leading to pathophysiological changes to the latter. To deal with these health issues, it has been suggested that physical exercise may reverse part of these obesity-related pathologies by modulating the cross talk between the adipose tissue and body systems. In this context, this review was carried out to provide knowledge about (i) the structural and functional changes in tissues, organs, and body systems from accumulation of fat in obesity, emphasizing the crosstalk between fat and body tissues; (ii) the crosstalk between fat and body tissues triggering pain; and (iii) the effects of physical exercise on body tissues and organs in obese and non-obese subjects, and their impact on pathological pain. This information may help one to better understand this crosstalk and the factors involved, and it could be useful in designing more specific training interventions (according to the nature of the comorbidity).

The lived experience of patients with obesity: A systematic review and qualitative synthesis

Although the deleterious effects of obesity have been well documented in terms of morbidity and mortality, less is known about what it is like to live with this complex and chronic disease. This study systematically reviewed and synthesized peer-reviewed studies relating to the lived experience of patients with obesity. A total of 12,388 records were screened, resulting in the inclusion of 32 final studies. Meta-ethnographic synthesis of these 32 studies generated five "third-order constructs" or themes: the development of obesity; a life limited; stigma, judgment, shame, and blame; treatment and; experiences of specific or minority groups. These constructs describe, from the patient's perspective, the factors associated with the development and maintenance of obesity; the effects of the disease on their day-to-day lives; the impact of the stigma and judgment many patients are subjected to; and their experience of accessing, or trying to access, treatment for their healthcare needs. This synthesis reveals the dearth of studies that focus solely on the experience of the patient and highlights the tendency for participant-informed, rather than participatory, methods in obesity research. It concludes with a call for further participatory research into the experiences of people living with obesity.

Obesity and Gallstones

BACKGROUND

The prevalence of obesity has been increasing globally and represents the main risk factor for the development of gallstone disease (GD).

SUMMARY

Excess body weight represents the main cause for the development of GD; nevertheless, there have been described multiple risk factors for its development, among them modifiable risk factors as diet, lifestyle, physical inactivity, and non-modifiable risk factors as ethnicity, female sex, advanced age, parity, and genetic mutations. Body mass index, abdominal perimeter, and waist-hip index have been used to determine the degree of adiposity of a person. Hence, central abdominal fat has been mostly associated with insulin resistance with the consequent increase in the hepatic cholesterol secretion; contributing as one of the multiple mechanisms associated with the development of gallstones. This disease has a low mortality; however, it has been associated with multiple diseases such as cardiovascular diseases, carotid atherosclerosis, metabolic associated fatty liver disease, and gallbladder cancer, probably because they share many of the risk factors.

KEY MESSAGES

GD continues to be considered a disease with a high medical burden, in which it is sought to intervene in modifiable risk factors to reduce its development.

The lived experience of people with obesity: study protocol for a systematic review and synthesis of qualitative studies

BACKGROUND

Obesity is a prevalent, complex, progressive and relapsing chronic disease characterised by abnormal or excessive body fat that impairs health and quality of life. It affects more than 650 million adults worldwide and is associated with a range of health complications. Qualitative research plays a key role in understanding patient experiences and the factors that facilitate or hinder the effectiveness of health interventions. This review aims to systematically locate, assess and synthesise qualitative studies in order to develop a more comprehensive understanding of the lived experience of people with obesity.

METHODS

This is a protocol for a qualitative evidence synthesis of the lived experience of people with obesity. A defined search strategy will be employed in conducting a comprehensive literature search of the following databases: PubMed, Embase, PsycInfo, PsycArticles and Dimensions (from 2011 onwards). Qualitative studies focusing on the lived experience of adults with obesity (BMI >30) will be included. Two reviewers will independently screen all citations, abstracts and full-text articles and abstract data. The quality of included studies will be appraised using the critical appraisal skills programme (CASP) criteria. Thematic synthesis will be conducted on all of the included studies. Confidence in the review findings will be assessed using GRADE CERQual.

DISCUSSION

The findings from this synthesis will be used to inform the EU Innovative Medicines Initiative (IMI)-funded SOPHIA (Stratification of Obesity Phenotypes to Optimize Future Obesity Therapy) study. The objective of SOPHIA is to optimise future obesity treatment and stimulate a new narrative, understanding and vocabulary around obesity as a set of complex and chronic diseases. The findings will also be useful to health care providers and policy makers who seek to understand the experience of those with obesity.

SYSTEMATIC REVIEW REGISTRATION

PROSPERO CRD42020214560 .

The obesity paradox: Underweight patients are at the greatest risk of mortality after cholecystectomy

BACKGROUND

Elevated body mass index is a risk factor for gallstone disease and cholecystectomy, but outcomes for low body mass index patients remain uncharacterized. We examined the association of body mass index with morbidity, mortality, and resource use after cholecystectomy.

METHODS

The 2005 to 2016 American College of Surgeons National Surgical Quality Improvement Program was retrospectively analyzed for adult patients undergoing laparoscopic and open cholecystectomy. Patients were stratified into 5 groups: body mass index <18.5 (underweight), body mass index 18.5 to 24.9 (normal weight), body mass index 25 to 29.9 (overweight), body mass index 30 to 34.9 (class I obesity), body mass index 35 to 39.9 (class II obesity), and body mass index ≥40 (class III obesity). Multivariable regressions identified independent associations of covariates with 30-day mortality, complications, and resource use.

RESULTS

Of 327,473 cholecystectomy patients, 1.0% were underweight, 19.5% normal weight, 30.3% overweight, 24.0% class I obesity, 13.5% class II obesity, and 11.7% class III obesity. After multivariable analysis, underweight patients had a higher risk of mortality (adjusted odds ratio = 1.53; P = .029) and postoperative bleeding (adjusted odds ratio = 1.45; P = .011) relative to normal weight patients. Conversely, class III obesity patients had lower mortality (adjusted odds ratio = 0.66; P = .005) but increased operative time (β = 10.2 minutes; P < .001), wound infection (adjusted odds ratio = 1.38; P < .001), and wound dehiscence (adjusted odds ratio = 2.20; P < .001). Hospital duration of stay and readmission rates were highest for underweight patients.

CONCLUSION

Underweight patients experience increased risk of mortality and readmission, while class III obesity patients have higher rates of wound infection and dehiscence as well as prolonged operative time. These findings may guide choice of intervention.

High Body Mass Index and Central Adiposity Is Associated with Increased Risk of Acute Pancreatitis: A Meta-Analysis

BACKGROUND

Higher body mass index and waist circumference have been associated with increased risk of pancreatitis in several prospective studies; however, the results have not been entirely consistent.

AIMS

We conducted a systematic review and dose-response meta-analysis of prospective studies on adiposity and risk of pancreatitis to clarify this association.

METHODS

PubMed and Embase databases were searched for studies on adiposity and pancreatitis up to January 27, 2020. Prospective studies reporting adjusted relative risk (RR) estimates and 95% confidence intervals (CIs) for the association between adiposity and risk of pancreatitis were included, and summary RRs (95% CIs) were calculated using a random effects model.

RESULTS

Ten prospective studies with 5129 cases and 1,693,657 participants were included. The summary RR (95% CI) of acute pancreatitis was 1.18 (95% CI: 1.03-1.35, I² = 91%, n = 10 studies) per 5 kg/m² increase in BMI and 1.36 (95% CI: 1.29-1.43, I² = 0%, n = 3) per 10 cm increase in waist circumference. There was evidence of a nonlinear association between BMI and acute pancreatitis, p_nonlinearity < 0.0001, with a steeper association at higher levels of BMI, but not for waist circumference, p_nonlinearity = 0.19. Comparing a BMI of 35 with a BMI of 22, there was a 58% increase in the RR and there was a fourfold increase in the RR comparing a waist circumference of 110 cm with 69 cm. There was no evidence of publication bias.

CONCLUSIONS

This meta-analysis suggests that both increasing BMI and waist circumference are associated with a dose-response-related increase in the risk of acute pancreatitis.