Arya, Lily A.

Importance Stool metabolites influencing gut motility and sensation may contribute to fecal incontinence (FI). Objective The objective of this study was to test whether FI is associated with higher levels of butyrate and Clostridiales taxa in stool. Study Design Stool metabolites and microbiota were compared between 96 women with FI and 42 controls. FI frequency and subtype (urgency vs insensible) were measured using a 14-day bowel diary, St. Mark’s score, and the Accidental Bowel Leakage questionnaire. Metabolite analysis included targeted analysis (8 short-chain fatty acids including butyrate, 17 bile acids, and 8 tryptophan derivatives) and untargeted analysis. Stool microbiota were characterized using 16S rRNA gene sequencing. Multivariable and exploratory multiomics factor analysis were performed with statistical significance defined as false discovery rate (FDR) ≤0.10. Results The FI group had a higher proportion of Bristol stool types 2 and 6 than controls ( P = 0.005). The mean number of leaks for the FI group was 1.7 ± 1.7 per day, 38% had urgency FI, and 39% had insensible FI. There was no significant difference between groups in butyrate levels and Clostridiales taxa. Multiomics analysis identified glycerolipids (monoacylglycerols and diacylglycerols) associated with FI (FDR = 0.08). In addition, insensible FI was associated with glycerolipids, long-chain saturated and monounsaturated fatty acids, phospholipids, and dipeptides (FDR = 0.08–0.09). The top weighted microbiota associated with these metabolites were Lachnospiraceae and Ruminococcaceae; however, these taxa were not directly associated with FI. Conclusion Butyrate and Clostridiales were not associated with FI. Novel stool metabolite signatures were identified, suggesting new biological pathways and potential therapeutic targets for FI.

Objective The aim of the study was to determine the rate of return to baseline functional status 3 months after surgery for pelvic organ prolapse (POP) in women 65 years or older. Methods This is a multicenter prospective cohort study of women older than 65 years undergoing POP surgery. Functional status was determined by the Activities Assessment Scale at the preoperative visit and 3 months after surgery. We compared a variety of clinical variables and preoperative functional status scores for women who worsened, improved, or returned to baseline functional status after surgery using univariable and multivariable analysis. Results A total of 192 women were enrolled in the study. Of 176 women who completed both sets of questionnaires, 59% improved, 35% returned, and 6% worsened from their baseline functional status. Variables significantly associated with postoperative functional status score were depression ( P < 0.002) and preoperative functional status score ( P < 0.001). The group that improved from baseline had the lowest (worst) preoperative functional status score (78.7 ± 16.4), whereas the group that worsened after surgery had the highest (best) preoperative functional status score (98.6 ± 2.2). After adjusting for age and depression, higher preoperative functional status score was predictive of failure to return to baseline functional status. Conclusions Most older women undergoing surgery for POP, including those with low preoperative functional status, return to or improve from their baseline functional status within 3 months of surgery. Women with higher functional status before surgery are less likely to report improvement in physical functioning after surgery.

AimsThis paper aims to report the rationale, design, and the specific methodology of an ongoing nested observational study that will determine the association of the metabolite and microbial composition of stool with fecal incontinence (FI).MethodsEligible cases are participants with FI enrolled in the Controlling Anal Incontinence in women by Performing Anal Exercises with Biofeedback or Loperamide (CAPABLe) trial, a Pelvic Floor Disorders Network trial across eight clinical centers in the United States. Women of similar age without FI in the last year served as controls. All subject collected stool samples at the baseline and 24‐week visit at home using a standardized collection method. Samples were shipped to and stored at centralized laboratories.ResultsSpecimen collection commenced December 2014 and was completed in May 2016. Fecal water and DNA has been extracted and is currently being analyzed by targeted metabolic profiling for stool metabolites and 16S rRNA gene sequencing for stool microbiota.ConclusionsThis article describes the rationale and design of a study that could provide a paradigm shift for the treatment of FI in women.