1.Bali Chronic Constipation Roundtable Report: Chronic ConstipationManagement in Asia
Yi Ping REN ; Wah Loong CHAN ; Kee Huat CHUAH ; Yong Sung KIM ; Atsushi NAKAJIMA ; Sanjiv MAHADEVA ; Yeong Yeh LEE ; Andrew S B CHUA ; Tao BAI ; Ari Fahrial SYAM ; Chien-Lin CHEN ; Ching-Liang LU ; M. Masudur RAHMAN ; Tanisa PATCHARATRAKUL ; Victoria Ping Y TAN ; Dao Viet HANG ; Xiaohua HOU ; Yinglian XIAO ; Justin WU ; Uday C GHOSHAL ; Hidekazu SUZUKI ; Sutep GONLACHANVIT ; Kewin T H SIAH
Journal of Neurogastroenterology and Motility 2026;32(1):109-128
Background/Aims:
Chronic constipation is prevalent yet under-diagnosed across Asia, compromising quality of life and burdening healthcare systems. Cultural stigma, varied diets, and limited access to standardized diagnostic tools delay timely care.
Methods:
The Bali Chronic Constipation Roundtable in November 2024, brought together experts from 11 Asian countries. The group reviewed epidemiological data, analyzed multinational questionnaire on clinical practice pattern, and conducted structured discussions to identify key barriers and propose region-specific recommendations.
Results:
Chronic constipation prevalence varies across Asia, ranging from 1.8% in India to 16.6% in Japan, with women and the elderly disproportionately affected. Under-reporting persists owing to cultural taboos and widespread self treatment with laxatives and traditional medications. Although the Rome IV criteria remains the global standard, they may not fully reflect Asian symptom profiles, and diagnosis is limited by scarce motility laboratories. First line therapies such as dietary-fiber optimization and osmotic laxatives are widely available, but newer pharmacotherapies (prucalopride, linaclotide, lubiprostone, and elobixibat) remain costly and unevenly accessible. Biofeedback for dyssynergic defecation is underutilized due to limited availability. Experts recommend expanded regional research on to refine diagnostic criteria, coupled with enhanced physician education and public awareness. They advocate accessibility to second-line and novel therapies that incorporate culturally attuned regional guidelines, and improved access to gastrointestinal motility testing.
Conclusions
The Bali Chronic Constipation Roundtable highlighted Asia’s need for region specific diagnostics and management. Addressing diagnostic and treatment gaps will improve outcomes, while ongoing researcher clinician policy collaboration must standardize guidelines, advance research, and ensure equitable care across Asia.
2.Early Morbidity of Retroperitoneal Lymph Node Dissection in Testicular Cancer Patients: A Retrospective Cohort Study of the National Surgical Quality Improvement Program Database
B. Alexander KNIGHT ; Andrew COWAN ; Solange BASSALE ; Yiyi CHEN ; Sudhir ISHARWAL
Journal of Urologic Oncology 2026;24(1):79-87
Purpose:
Complications associated with retroperitoneal lymph node dissection (RPLND) have primarily been described from single-center data. These historical single-center studies often lack standardized reporting preventing combined cohort analysis. Therefore, we describe and discuss the complications associated with RPLND from a prospectively maintained, validated, national database.
Materials and Methods:
The National Surgical Quality Improvement Program (NSQIP) database was queried for 30-day postoperative complications following RPLND for testicular cancer from 2005–2018, which comprised the cohort for analysis. Complications were subcategorized by organ systems and by Clavien-Dindo classification grade (I–II [low], III–V [high]). A subanalysis of large (>5 cm) retroperitoneal masses was evaluated as a surrogate for postchemotherapy RPLND. Associations with patient and perioperative variables were analyzed with logistic regression.
Results:
A total of 375 patients met inclusion criteria. Seventy-four patients (19.7%) experienced at least one postoperative complication for a total of 125 complications. The median hospital length of stay was 5 (interquartile range, 4–7) days. Hospital readmission occured in 32 patients (8.5%). There were 52 patients (13.9%) who underwent RPLND for large masses, with a 34.6% complication rate. The most common organ system complications included blood transfusions (11.7%), wound dehiscence/infection (4%), and pulmonary (2.3%). The majority of complications were of low Clavien-Dindo classification grade (12% vs. 3.5%). On univariable analysis, smoking, disseminated cancer, steroid use, older age, low albumin, low hematocrit, low platelet counts, and longer operative times were significantly associated with the occurrence of any complication. Smoking, low hematocrit, and longer operative times remained significant on multivariable analysis.
Conclusion
In the NSQIP database, complication rates following RPLND are predominantly of low Clavien-Dindo classification grade and are higher than some previously published single-center series. Increased rates were associated with smoking, unfavorable preoperative blood counts, and longer operative times.
4.Impact of early detection and management of emotional distress on length of stay in non-psychiatric inpatients: A retrospective hospital-based cohort study.
Wanjun GUO ; Huiyao WANG ; Wei DENG ; Zaiquan DONG ; Yang LIU ; Shanxia LUO ; Jianying YU ; Xia HUANG ; Yuezhu CHEN ; Jialu YE ; Jinping SONG ; Yan JIANG ; Dajiang LI ; Wen WANG ; Xin SUN ; Weihong KUANG ; Changjian QIU ; Nansheng CHENG ; Weimin LI ; Wei ZHANG ; Yansong LIU ; Zhen TANG ; Xiangdong DU ; Andrew J GREENSHAW ; Lan ZHANG ; Tao LI
Chinese Medical Journal 2025;138(22):2974-2983
BACKGROUND:
While emotional distress, encompassing anxiety and depression, has been associated with negative clinical outcomes, its impact across various clinical departments and general hospitals has been less explored. Previous studies with limited sample sizes have examined the effectiveness of specific treatments (e.g., antidepressants) rather than a systemic management strategy for outcome improvement in non-psychiatric inpatients. To enhance the understanding of the importance of addressing mental health care needs among non-psychiatric patients in general hospitals, this study retrospectively investigated the impacts of emotional distress and the effects of early detection and management of depression and anxiety on hospital length of stay (LOS) and rate of long LOS (LLOS, i.e., LOS >30 days) in a large sample of non-psychiatric inpatients.
METHODS:
This retrospective cohort study included 487,871 inpatients from 20 non-psychiatric departments of a general hospital. They were divided, according to whether they underwent a novel strategy to manage emotional distress which deployed the Huaxi Emotional Distress Index (HEI) for brief screening with grading psychological services (BS-GPS), into BS-GPS ( n = 178,883) and non-BS-GPS ( n = 308,988) cohorts. The LOS and rate of LLOS between the BS-GPS and non-BS-GPS cohorts and between subcohorts with and without clinically significant anxiety and/or depression (CSAD, i.e., HEI score ≥11 on admission to the hospital) in the BS-GPS cohort were compared using univariable analyses, multilevel analyses, and/or propensity score-matched analyses, respectively.
RESULTS:
The detection rate of CSAD in the BS-GPS cohort varied from 2.64% (95% confidence interval [CI]: 2.49%-2.81%) to 20.50% (95% CI: 19.43%-21.62%) across the 20 departments, with a average rate of 5.36%. Significant differences were observed in both the LOS and LLOS rates between the subcohorts with CSAD (12.7 days, 535/9590) and without CSAD (9.5 days, 3800/169,293) and between the BS-GPS (9.6 days, 4335/178,883) and non-BS-GPS (10.8 days, 11,483/308,988) cohorts. These differences remained significant after controlling for confounders using propensity score-matched comparisons. A multilevel analysis indicated that BS-GPS was negatively associated with both LOS and LLOS after controlling for sociodemographics and the departments of patient discharge and remained negatively associated with LLOS after controlling additionally for the year of patient discharge.
CONCLUSION
Emotional distress significantly prolonged the LOS and increased the LLOS of non-psychiatric inpatients across most departments and general hospitals. These impacts were moderated by the implementation of BS-GPS. Thus, BS-GPS has the potential as an effective, resource-saving strategy for enhancing mental health care and optimizing medical resources in general hospitals.
Humans
;
Retrospective Studies
;
Male
;
Length of Stay/statistics & numerical data*
;
Female
;
Middle Aged
;
Adult
;
Psychological Distress
;
Inpatients/psychology*
;
Aged
;
Anxiety/diagnosis*
;
Depression/diagnosis*
5.Artificial intelligence and surgical gesture recognition: a new paradigm for surgical skill asse-ssment in the era of intelligent minimally invasive surgery
Runzhuo MA ; Longfei GOU ; Jiang YU ; Yanfeng HU ; Hao CHEN ; Andrew J. HUANG
Chinese Journal of Digestive Surgery 2025;24(4):480-486
With the advancements in artificial intelligence (AI), computational power, and surgical robotics, the analysis of surgical performance at the granular level of individual surgical gestures has become feasible. Surgical gestures, defined as the smallest independent units of inter-action between surgical instruments and tissues, offer a quantifiable framework for surgical skill assessment. Evidence suggests that the selection and execution of surgical gestures are strongly correlated with the expertise of the surgeon and patient outcomes, underscoring their significance in both surgical training and clinical practice. Moreover, the establishment of a standardized classifi-cation system for surgical gestures and the adoption of uniform terminology have the potential to improve communication efficiency during surgical education and training. The authors synthesize existing classification systems for surgical gestures, with a focus on their applications in diverse tasks such as suturing, exposure and dissection. By examining the latest advancements in AI models applied to surgical gesture, as well as the current research landscape of surgical gesture recognition in digestive surgery, the authors explore the potential applications of such technologies in assisting surgeons during operations in the future.
6.Artificial intelligence and surgical gesture recognition: a new paradigm for surgical skill asse-ssment in the era of intelligent minimally invasive surgery
Runzhuo MA ; Longfei GOU ; Jiang YU ; Yanfeng HU ; Hao CHEN ; Andrew J. HUANG
Chinese Journal of Digestive Surgery 2025;24(4):480-486
With the advancements in artificial intelligence (AI), computational power, and surgical robotics, the analysis of surgical performance at the granular level of individual surgical gestures has become feasible. Surgical gestures, defined as the smallest independent units of inter-action between surgical instruments and tissues, offer a quantifiable framework for surgical skill assessment. Evidence suggests that the selection and execution of surgical gestures are strongly correlated with the expertise of the surgeon and patient outcomes, underscoring their significance in both surgical training and clinical practice. Moreover, the establishment of a standardized classifi-cation system for surgical gestures and the adoption of uniform terminology have the potential to improve communication efficiency during surgical education and training. The authors synthesize existing classification systems for surgical gestures, with a focus on their applications in diverse tasks such as suturing, exposure and dissection. By examining the latest advancements in AI models applied to surgical gesture, as well as the current research landscape of surgical gesture recognition in digestive surgery, the authors explore the potential applications of such technologies in assisting surgeons during operations in the future.
7.Intestinal epithelial cell NCoR deficiency ameliorates obesity and metabolic syndrome.
Shaocong HOU ; Hengcai YU ; Caihong LIU ; Andrew M F JOHNSON ; Xingfeng LIU ; Qian JIANG ; Qijin ZHAO ; Lijuan KONG ; Yanjun WAN ; Xiaowei XING ; Yibing CHEN ; Jingwen CHEN ; Qing WU ; Peng ZHANG ; Changtao JIANG ; Bing CUI ; Pingping LI
Acta Pharmaceutica Sinica B 2024;14(12):5267-5285
Nuclear receptor corepressor (NCoR1) interacts with various nuclear receptors and regulates the anabolism and catabolism of lipids. An imbalance in lipid/energy homeostasis is also an important factor in obesity and metabolic syndrome development. In this study, we found that the deletion of NCoR1 in intestinal epithelial cells (IECs) mainly activated the nuclear receptor PPARα and attenuated metabolic syndrome by stimulating thermogenesis. The increase in brown adipose tissue thermogenesis was mediated by gut-derived tricarboxylic acid cycle intermediate succinate, whose production was significantly enhanced by PPARα activation in the fed state. Additionally, NCoR1 deletion derepressed intestinal LXR, increased cholesterol excretion, and impaired duodenal lipid absorption by decreasing bile acid hydrophobicity, thereby reversing the possible negative effects of intestinal PPARα activation. Therefore, the simultaneous regulatory effect of intestinal NCoR1 on both lipid intake and energy expenditure strongly suggests that it is a promising target for developing metabolic syndrome treatment.
8.Frailty prevalence and its associations in a subacute geriatric ward in Singapore.
Christine Yuanxin CHEN ; Thulasi CHANDRAN ; Vivian Cantiller BARRERA ; Rachelle Tumbokon TAN-PANTANAO ; Tanya Joy Zapata QUICHO ; Zin Tun THANT ; Kiat Sern GOH
Singapore medical journal 2023;64(3):196-202
INTRODUCTION:
Our aim was to study the prevalence of frailty and its associated factors in a subacute geriatric ward.
METHODS:
This was a cross-sectional study of 167 participants between June 2018 and June 2019. Baseline demographics and participants' Mini Nutritional Assessment, Geriatric Depression Scale, Mini Mental State Examination, Charlson's Comorbidity Index and LACE index scores were obtained. Functional measurements such as modified Barthel's Index scores and hand grip strength (HGS) were taken. Frailty was assessed using the Clinical Frailty Scale (CFS) and the FRAIL scale. Data on history of healthcare utilisation, medications, length of stay, selected blood investigations and presence of geriatric syndromes were also collected.
RESULTS:
The prevalence of pre-frailty (CFS 4) and frailty (CFS ≥ 5) was 16.2% and 63.4%, respectively. There were significant associations between CFS and age (pre-frail vs. non-frail: odds ratio [OR] 1.14, 95% confidence interval [CI] 1.04-1.25, P = 0.006; frail vs. non-frail: OR 1.08, 95% CI 1.01-1.15, P = 0.021), HGS at discharge (frail vs. non-frail: OR 0.90, 95% CI 0.82-0.99, P = 0.025), serum albumin (frail vs. non-frail: OR 0.90, 95% CI 0.82-0.99, P = 0.035) and the presence of urinary incontinence (frail vs. non-frail: OR 3.03, 95% CI 1.19-7.77, P = 0.021).
CONCLUSION
Frailty is highly prevalent in the subacute geriatric setting and has many associated factors. In this study, independent factors associated with frailty were age, HGS at discharge, serum albumin and urinary incontinence. This has implications for future resource allocation for frail older inpatients and may help direct further research to study the effectiveness of frailty-targeted interventions.
Humans
;
Aged
;
Frailty/epidemiology*
;
Frail Elderly
;
Hand Strength
;
Prevalence
;
Singapore/epidemiology*
;
Cross-Sectional Studies
;
Fatigue Syndrome, Chronic
;
Geriatric Assessment
;
Urinary Incontinence
;
Serum Albumin
9.The chemical reprogramming of unipotent adult germ cells towards authentic pluripotency and de novo establishment of imprinting.
Yuhan CHEN ; Jiansen LU ; Yanwen XU ; Yaping HUANG ; Dazhuang WANG ; Peiling LIANG ; Shaofang REN ; Xuesong HU ; Yewen QIN ; Wei KE ; Ralf JAUCH ; Andrew Paul HUTCHINS ; Mei WANG ; Fuchou TANG ; Xiao-Yang ZHAO
Protein & Cell 2023;14(7):477-496
Although somatic cells can be reprogrammed to pluripotent stem cells (PSCs) with pure chemicals, authentic pluripotency of chemically induced pluripotent stem cells (CiPSCs) has never been achieved through tetraploid complementation assay. Spontaneous reprogramming of spermatogonial stem cells (SSCs) was another non-transgenic way to obtain PSCs, but this process lacks mechanistic explanation. Here, we reconstructed the trajectory of mouse SSC reprogramming and developed a five-chemical combination, boosting the reprogramming efficiency by nearly 80- to 100-folds. More importantly, chemical induced germline-derived PSCs (5C-gPSCs), but not gPSCs and chemical induced pluripotent stem cells, had authentic pluripotency, as determined by tetraploid complementation. Mechanistically, SSCs traversed through an inverted pathway of in vivo germ cell development, exhibiting the expression signatures and DNA methylation dynamics from spermatogonia to primordial germ cells and further to epiblasts. Besides, SSC-specific imprinting control regions switched from biallelic methylated states to monoallelic methylated states by imprinting demethylation and then re-methylation on one of the two alleles in 5C-gPSCs, which was apparently distinct with the imprinting reprogramming in vivo as DNA methylation simultaneously occurred on both alleles. Our work sheds light on the unique regulatory network underpinning SSC reprogramming, providing insights to understand generic mechanisms for cell-fate decision and epigenetic-related disorders in regenerative medicine.
Male
;
Mice
;
Animals
;
Cellular Reprogramming/genetics*
;
Tetraploidy
;
Pluripotent Stem Cells/metabolism*
;
Induced Pluripotent Stem Cells/metabolism*
;
DNA Methylation
;
Spermatogonia/metabolism*
;
Germ Cells/metabolism*
10.The F-box-only protein 44 regulates pregnane X receptor protein level by ubiquitination and degradation.
Rebecca R FLORKE GEE ; Andrew D HUBER ; Jing WU ; Richa BAJPAI ; Allister J LOUGHRAN ; Shondra M PRUETT-MILLER ; Taosheng CHEN
Acta Pharmaceutica Sinica B 2023;13(11):4523-4534
Pregnane X receptor (PXR) is a ligand-activated nuclear receptor that transcriptionally upregulates drug-metabolizing enzymes [e.g., cytochrome P450 3A4 (CYP3A4)] and transporters. Although the regulation of PXR target genes is well-characterized, less is known about the regulation of PXR protein level. By screening an RNAi library, we identified the F-box-only protein 44 (FBXO44) as a novel E3 ligase for PXR. PXR abundance increases upon knockdown of FBXO44, and, inversely, decreases upon overexpression of FBXO44. Further analysis revealed that FBXO44 interacts with PXR, leading to its ubiquitination and proteasomal degradation, and we determined that the F-box associated domain of FBXO44 and the ligand binding domain of PXR are required for the functional interaction. In summary, FBXO44 regulates PXR protein abundance, which has downstream consequences for CYP3A4 levels and drug-drug interactions. The results of this study provide new insight into the molecular mechanisms that regulate PXR protein level and activity and suggest the importance of considering how modulating E3 ubiquitin ligase activities will affect PXR-mediated drug metabolism.

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