1.Association of Genetically Predicted Obesity and Stool Frequency: Evidence From an Observational and Mendelian Randomization Study
Ke HAN ; Xiangyao WANG ; Shimin CHEN ; Xiaotong NIU ; Yan WANG ; Jingyuan XIANG ; Nan RU ; Miao LIU ; Ningli CHAI ; Enqiang LINGHU
Journal of Neurogastroenterology and Motility 2025;31(2):267-275
Background/Aims:
Obesity is associated with several gastrointestinal (GI) disorders and has been identified as a potential risk factor for various GI symptoms. Bowel frequency is an important indicator of bowel function. However, the causal link between obesity and gastrointestinal motility remains uncertain. This study aims to determine the causal effect of overall and central obesity on stool frequency.
Methods:
Four obesity-related anthropometric indicators–body mass index, body fat percentage, waist circumference (WC), and waist-tohip ratio (WHR)–were investigated. Individual-level baseline information from the UK Biobank was used to explore observational associations between obesity and stool frequency. Additionally, summary-level data from published genome-wide association studies were subjected to two-sample Mendelian randomization (MR) analyses to examine causal associations.
Results:
For all 4 indicators of obesity, higher levels of obesity were associated with more frequent bowel movements after adjusting for demographic characteristics, lifestyle, and dietary factors. After rigorous screening, 482 body mass index single nucleotide polymorphisms (SNPs), 7 body fat percentage SNPs, 48 WC SNPs, and 287 WHR SNPs were identified as instrument variables for MR analysis. The MR results were generally consistent with observational findings, proving that the associations observed in the overall obesity indicators were causal. For central obesity, the association between WHR and stool frequency remained consistent in both analysis phases, whereas WC showed a multidirectional association.
Conclusions
Obesity-related anthropometric indicators were causally associated with increased stool frequency in the overall and central obesity groups. Weight loss could be a potential approach to improve gastrointestinal regularity in individuals with obesity.
2.Association of Genetically Predicted Obesity and Stool Frequency: Evidence From an Observational and Mendelian Randomization Study
Ke HAN ; Xiangyao WANG ; Shimin CHEN ; Xiaotong NIU ; Yan WANG ; Jingyuan XIANG ; Nan RU ; Miao LIU ; Ningli CHAI ; Enqiang LINGHU
Journal of Neurogastroenterology and Motility 2025;31(2):267-275
Background/Aims:
Obesity is associated with several gastrointestinal (GI) disorders and has been identified as a potential risk factor for various GI symptoms. Bowel frequency is an important indicator of bowel function. However, the causal link between obesity and gastrointestinal motility remains uncertain. This study aims to determine the causal effect of overall and central obesity on stool frequency.
Methods:
Four obesity-related anthropometric indicators–body mass index, body fat percentage, waist circumference (WC), and waist-tohip ratio (WHR)–were investigated. Individual-level baseline information from the UK Biobank was used to explore observational associations between obesity and stool frequency. Additionally, summary-level data from published genome-wide association studies were subjected to two-sample Mendelian randomization (MR) analyses to examine causal associations.
Results:
For all 4 indicators of obesity, higher levels of obesity were associated with more frequent bowel movements after adjusting for demographic characteristics, lifestyle, and dietary factors. After rigorous screening, 482 body mass index single nucleotide polymorphisms (SNPs), 7 body fat percentage SNPs, 48 WC SNPs, and 287 WHR SNPs were identified as instrument variables for MR analysis. The MR results were generally consistent with observational findings, proving that the associations observed in the overall obesity indicators were causal. For central obesity, the association between WHR and stool frequency remained consistent in both analysis phases, whereas WC showed a multidirectional association.
Conclusions
Obesity-related anthropometric indicators were causally associated with increased stool frequency in the overall and central obesity groups. Weight loss could be a potential approach to improve gastrointestinal regularity in individuals with obesity.
3.Association of Genetically Predicted Obesity and Stool Frequency: Evidence From an Observational and Mendelian Randomization Study
Ke HAN ; Xiangyao WANG ; Shimin CHEN ; Xiaotong NIU ; Yan WANG ; Jingyuan XIANG ; Nan RU ; Miao LIU ; Ningli CHAI ; Enqiang LINGHU
Journal of Neurogastroenterology and Motility 2025;31(2):267-275
Background/Aims:
Obesity is associated with several gastrointestinal (GI) disorders and has been identified as a potential risk factor for various GI symptoms. Bowel frequency is an important indicator of bowel function. However, the causal link between obesity and gastrointestinal motility remains uncertain. This study aims to determine the causal effect of overall and central obesity on stool frequency.
Methods:
Four obesity-related anthropometric indicators–body mass index, body fat percentage, waist circumference (WC), and waist-tohip ratio (WHR)–were investigated. Individual-level baseline information from the UK Biobank was used to explore observational associations between obesity and stool frequency. Additionally, summary-level data from published genome-wide association studies were subjected to two-sample Mendelian randomization (MR) analyses to examine causal associations.
Results:
For all 4 indicators of obesity, higher levels of obesity were associated with more frequent bowel movements after adjusting for demographic characteristics, lifestyle, and dietary factors. After rigorous screening, 482 body mass index single nucleotide polymorphisms (SNPs), 7 body fat percentage SNPs, 48 WC SNPs, and 287 WHR SNPs were identified as instrument variables for MR analysis. The MR results were generally consistent with observational findings, proving that the associations observed in the overall obesity indicators were causal. For central obesity, the association between WHR and stool frequency remained consistent in both analysis phases, whereas WC showed a multidirectional association.
Conclusions
Obesity-related anthropometric indicators were causally associated with increased stool frequency in the overall and central obesity groups. Weight loss could be a potential approach to improve gastrointestinal regularity in individuals with obesity.
4.Prevalence of chronic diarrhea and its association with obesity in a Chinese community-based population.
Ke HAN ; Xiangyao WANG ; Yan WANG ; Xiaotong NIU ; Jingyuan XIANG ; Nan RU ; Chunxu JIA ; Hongyi SUN ; Zhengting HE ; Yujie FENG ; Enqiang LINGHU
Chinese Medical Journal 2025;138(13):1587-1594
BACKGROUND:
Epidemiological data on chronic diarrhea in the Chinese population are lacking, and the association between obesity and chronic diarrhea in East Asian populations remains inconclusive. This study aimed to investigate the prevalence of chronic diarrhea and its association with obesity in a representative community-dwelling Chinese population.
METHODS:
This cross-sectional study was based on a multistage, randomized cluster sampling involving 3503 residents aged 20-69 years from representative urban and rural communities in Beijing. Chronic diarrhea was assessed using the Bristol Stool Form Scale (BSFS), and obesity was determined based on body mass index (BMI). Logistic regression analysis and restricted cubic splines were used to evaluate the relationship between obesity and chronic diarrhea.
RESULTS:
The standardized prevalence of chronic diarrhea in the study population was 12.88%. The average BMI was 24.67 kg/m 2 . Of all the participants, 35.17% (1232/3503) of participants were classified as overweight and 16.13% (565/3503) as obese. After adjustment for potential confounders, individuals with obesity had an increased risk of chronic diarrhea as compared to normal weight individuals (odds ratio = 1.58, 95% confidence interval: 1.20-2.06). A nonlinear association between BMI and the risk of chronic diarrhea was observed in community residents of males and the overall participant group ( P = 0.026 and 0.017, respectively).
CONCLUSIONS
This study presents initial findings on the prevalence of chronic diarrhea among residents of Chinese communities while offering substantiated evidence regarding the significant association between obesity and chronic diarrhea. These findings offer a novel perspective on gastrointestinal health management.
Adult
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Aged
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Female
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Humans
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Male
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Middle Aged
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Young Adult
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Body Mass Index
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China/epidemiology*
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Chronic Disease/epidemiology*
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Cross-Sectional Studies
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Diarrhea/epidemiology*
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Obesity/complications*
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Prevalence
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East Asian People/statistics & numerical data*
5.Mechanism of traditional Chinese medicine treatment of hepatic fibrosis by restoring circadian rhythms.
Meng-Ru ZHANG ; Ruo-Nan JIANG ; Shu-Hua XIONG ; Hong-Yan WU ; De-Song KONG ; Li CHEN
China Journal of Chinese Materia Medica 2025;50(16):4407-4414
Hepatic fibrosis is a key pathological process in the development of chronic liver disease to cirrhosis, and its core mechanism involves the activation of hepatic stellate cells(HSC) and abnormal deposition of extracellular matrix(ECM). Although existing treatments, such as antiviral drugs, can delay disease progression, they have the problem of single therapeutic targets and cannot reverse fibrosis. Accordingly, multidimensional intervention strategies are urgently needed. Recent studies have shown that circadian rhythm disorders aggravate hepatic fibrosis by regulating metabolism, immunity, and inflammation. Traditional Chinese medicine(TCM) plays a unique role in restoring the circadian clock via multi-target and holistic regulation. This paper establishes a three-dimensional network by systematically integrating biological clock, metabolism, and immunity for the first time to elucidate the scientific connotation of the theory of time-concerned treatment of TCM, and proposes a new strategy for the development of time-targeted compound prescriptions, providing innovative ideas for the treatment of hepatic fibrosis.
Humans
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Liver Cirrhosis/metabolism*
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Drugs, Chinese Herbal/therapeutic use*
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Circadian Rhythm/drug effects*
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Animals
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Medicine, Chinese Traditional
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Hepatic Stellate Cells/drug effects*
6.Clinical and endoscopic ultrasound features of IgG4-related autoimmune pancreatitis
Hongyi SUN ; Ningli CHAI ; Jinping LI ; Huikai LI ; Xiangyao WANG ; Nan RU ; Enqiang LINGHU
Chinese Journal of Digestive Endoscopy 2024;41(2):127-130
Objective:To analyze the differences in clinical and endoscopic ultrasonography (EUS) findings between diffuse and focal IgG4-related autoimmune pancreatitis (IgG4-AIP).Methods:Data of patients diagnosed as having IgG4-AIP who underwent EUS at Chinese PLA General Hospital from September 2011 to April 2022 were retrospectively collected. General clinical data, EUS features, and postoperative pathology were analyzed for characteristic differences.Results:A total of 40 patients were included in the study, 60.03±10.87 years old, a higher proportion of males (85.0%, 34/40). All patients underwent EUS, and 28 underwent EUS-guided fine-needle aspiration. Among the 40 patients, 29 (72.5%) had diffuse type and 11 (27.5%) had focal type. Abdominal pain [65.5% (19/29) VS 18.2% (2/11), χ2=5.393, P=0.020] and thickening of the bile duct wall [51.7% (15/29) VS 9.1% (1/11), χ2=4.394, P=0.036] were more common in the diffuse type, while main pancreatic duct dilation [45.5% (5/11) VS 10.3% (3/29), χ2=4.146, P=0.042] was more common in the focal type, with the lesion most commonly located in the pancreatic head (90.9%, 10/11). There was no significant difference in the presence of chronic pancreatitis parenchymal changes between the two groups [34.5% (10/29) VS 27.3% (3/11), χ2=0.003, P=0.955]. Conclusion:There are certain differences in abdominal pain and biliary and pancreatic duct lesions between diffuse and focal AIP. The high expression of chronic pancreatitis characteristics is not observed in either group, which provides clues for the classification of AIP in clinical practice.
7.Therapeutic effect of cardiac rehabilitation based on traditional exercise on heart failure:a Meta-a-nalysis
Jun-Ru XING ; Yan YANG ; Xin CHEN ; Jiang-Fen CAO ; Ru-Nan GUO
Chinese Journal of cardiovascular Rehabilitation Medicine 2024;33(1):6-10
Objective:To explore therapeutic effect of cardiac rehabilitation based on traditional exercise on heart failure(HF).Methods:We searched databases including CNKI,Wanfang,VIP,Pubmed and Cochrane library for literature about application of cardiac rehabilitation exercise based on traditional exercises in HF patients before Mar 2023.Literature were screened according to inclusion and exclusion criteria,while article quality assessment and da-ta extraction were performed,and RevMan 5.3 software was used to perform Meta analysis.Results:Meta analysis indicated that compared with control group,there were significant increase in LVEF[MD=4.51,95%CI(1.70,7.33),P=0.002]and 6 min walking distance[6MWD,MD=51.90,95%CI(39.24,64.57),P=0.001],and sig-nificant reductions in left ventricular end-systolic diameter[MD=-1.64,95%CI(-3.18,-0.11),P=0.040],left ventricular end-diastolic diameter[MD=-2.49,95%C1(-3.28,-1.69),P=0.001],score of Minnesota living with heart failure questionnaire[MD=-6.89,95%CI(-8.64,-5.33),P=0.001]and level of N-ter-minal pro-brain natriuretic peptide[MD=-151.46,95%CI(-208.21,-94.70),P=0.001]in observation group.Conclusion:Cardiac rehabilitation based on traditional exercise can significantly improve heart function,in-crease 6 min walking distance and improve quality of life in patients with heart failure.
8.Impact of pancreatic and biliary stent on post-endoscopic papillectomy complications: A single-center retrospective study
Nan RU ; Ningli CHAI ; Bo ZHANG ; Longsong LI ; Yawei BI ; Enqiang LINGHU
Chinese Medical Journal 2024;137(17):2111-2118
Background::Endoscopic papillectomy (EP) is recommended as the first-line therapy for ampullary tumors, despite a relatively high incidence of complications. Pancreatic and/or biliary stents are placed at the endoscopist’s discretion to prevent post-EP complications. The present study aimed to evaluate the efficacy of different stents.Methods::A total of 117 patients who underwent EP and met the criteria between June 2006 and October 2022 were enrolled in the study. These patients were divided into a pancreatic stent group (PS group, n = 47), a biliary stent group (BS group, n = 38), and a two-stent group (PBS [PS and BS] group, n = 32). Relevant clinical data were collected and compared among the three groups. Multivariate logistic analyses were performed to explore risk factors for post-EP complications. Results::The incidence of all complications was 37.6% (44/117). Pancreatitis and hemorrhage were the two most common complications with incidence rates of 14.5% (17/117) and 17.9% (21/117). The incidence rates of post-EP pancreatitis were 10.6% (5/47), 23.7% (9/38), and 9.4% (3/32) in the PS group, BS group, and PBS group, respectively, with no significant differences. There were also no significant differences in other complications among the three groups. Age (odds ratio [OR]: 0.95; 95% confidence interval [CI]: 0.91-0.99; P = 0.022) was independently associated with post-EP pancreatitis while tumor size (OR: 1.66; 95% CI: 1.06-2.60; P = 0.028) was independently associated with post-EP hemorrhage. Conclusions::While pancreatic stenting is the first choice to prevent post-EP pancreatitis, biliary stenting could also be considered as a substitute for patients with difficulties in pancreatic cannulation. Two-stent (biliary and pancreatic stent) placement is unnecessary unless it is required due to other concerns.
9.The inhibitory effect of artesunate on hepatocellular carcinoma cells by regulating expression of GADD45A and NACC1
Guan-Tong SHEN ; Jin-Yao DONG ; Jing FENG ; Nan QIN ; Gen-Lai DU ; Fei ZHU ; Ke LIAN ; Xin-Yu LIU ; Qing-Liang LI ; Xun-Wei ZHANG ; Ru-Yi SHI
Chinese Pharmacological Bulletin 2024;40(6):1089-1097
Aim To explore the effect and mechanism of the artesunate(ART)on hepatocellular carcinoma(HCC).Methods The cell lines MHCC-97H and HCC-LM3 were used to be detected.MTT and clone formation were used to determine the cell proliferation;Wound healing was used to detect the cell migration;Transwell was used to test the cell invasion.Flow-cy-tometry was used to detect cell apoptosis and cell cy-cle.RNA-seq and qRT-PCR was used to detect the genes expression.Results The proliferation,migra-tion and invasion of treated cells were obviously inhibi-ted(P<0.01).Moreover,the apoptosis rate in-creased significantly,so did the proportion of G2/M cells.Transcriptomic analysis identified GADD45A as a potential target of ART through RNA-sequencing da-ta,and suggested that ART might induce apoptosis and cell cycle arrest through regulating the expression of GADD45A.In addition,the results of mechanism studies and signaling analysis suggested that GADD45A had interaction with its upstream gene NACC1(nucle-us accumbens associated 1).Moreover,after ART treatment,the expressions of GADD45A and NACC1 were changed significantly.Conclusion ART may be a potential drug to resist HCC by affecting the expres-sion of GADD45A and its upstream gene NACC1,which provides a new drug,a new direction and a new method for the clinical treatment of HCC.
10.Effects of Duhuo Jisheng Decoction on TNF-α-induced proliferation,apoptosis and inflammation of fibroblast-like synoviocytes in rheumatoid arthritis
Jing-Ruo WU ; Ya-Nan BU ; Jin-Ru YUE ; Jia CHEN ; Gui-Yu WANG ; Yu-Min ZHANG
Chinese Pharmacological Bulletin 2024;40(9):1665-1673
Aim To explore the effect of serum contai-ning Duhuo Jisheng Decoction on the proliferation,ap-optosis and inflammation of fibroblast-like synoviocytes(FLS)induced by tumor necrosis factor-α(TNF-α)in rheumatoid arthritis(RA)and to reveal the under-lying mechanism.Methods The MH7A cells were divided into five groups:normal group(10%blank se-rum),model group(10 μg·L-1 TNF-α+10%blank serum),Duhuo Jisheng Decoction low(10 μg·L-1 TNF-α+2.5%drug-containing serum+7.5%blank serum),medium(10 pg·L-1 TNF-α+5%drug-con-taining serum+5%blank serum),high(10 μg·L-1 TNF-α+10%drug-containing serum)dose group.The concentration of serum containing Duhuo Jisheng Decoction was screened by MTT method.Cell prolifer-ation was detected using EdU staining.The expression of proliferation marker Ki67 was detected using immu-nofluorescence staining.The apoptosis rate was meas-ured by flow cytometry.The contents of IFN-γ,IL-4,IL-6 and IL-10 in each group were detected by ELISA.The mRNA and protein expression of Bax,Bcl-2,caspase-3 and TLR4/MyD88/NF-κB signaling pathway were detected by RT-qPCR and Western blot.Results Compared with the normal group,the cell prolifera-tion activity of the model group significantly increased,and the level of apoptosis decreased.The content of IFN-γ and IL-6 increased,and the content of IL-4 and IL-10 decreased.The TLR4/MyD88/NF-κB signaling pathway was activated.After the intervention of low,medium and high dose groups of serum containing Du-huo Jisheng Decoction,it could effectively improve the abnormal proliferation of cells and enhance apoptosis.At the same time,it inhibited the inflammatory re-sponse and the activation of TLR4/MyD88/NF-κB sig-naling pathway.Conclusions The serum containing Duhuo Jisheng Decoction can inhibit the abnormal pro-liferation of RA-FLS induced by TNF-α and the secre-tion of pro-inflammatory factors,and enhance apoptosis and anti-inflammatory levels.The mechanism may be related to the regulation of TLR4/MyD88/NF-κB sig-naling pathway.

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