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046, p  less then  .05, N = 4873) increasing the adjusted model R2 by .005. see more The WLS respondents were (mostly) born in the 1930s, whereas the AddHealth respondents were (mostly) born in the 1970s. This may indicate that social-epistatic regulation of behavior has weakened historically in the USA, which might stem from and enhance the ability for de novo mutations to influence behavior among more recently born cohorts-paralleling the secular rise in the heritability of age at sexual debut after the sexual revolution.Global mean temperatures have increased by 0.72 [Formula see text]C since the 1950s, and climate warming is resulting in geographical shifts in the range limits of many species. Climate velocity is estimated to be 0.42 km/year, and if a species fails to adapt to the new climate, it must track the location of its climatically constrained niche in order to survive. Dispersal has an important role to play in enabling a population to shift is geographical range limits, but many species are partially sedentary, with only a fraction of the population dispersing each year. We ask, can partially sedentary populations keep pace with climate or will such populations be more vulnerable to extinction? Through the development of a moving-habitat integrodifference equation model, we show that, provided climate velocity is not too large, partially sedentary populations can outperform fully dispersing populations in one of two ways (i) by persisting at climate speeds where a fully dispersing population cannot, and (ii) exhibiting higher population densities. Moreover, we find that positive density-dependent dispersal can further improve the likelihood a population can persist. Our results highlight the positive role that non-dispersers may play in mitigating the effects of overdispersal and facilitating population persistence in a warming world.PURPOSE Whether deferring surgery after endoscopic self-expandable metal stent (SEMS) placement for neoplastic stricture, and operating patients in a quasi-elective situation, may result in similar oncologic outcomes to elective operations is unclear. This study aimed to evaluate the disease-free survival (DFS) rates of patients who underwent an interval colon resection after SEMS placement or an elective operation with comparable cancer stages. METHODS From a prospective dataset, we retrospectively selected patients with the following characteristics (1) left-sided colon cancer and (2) cancer stage I to III. Exclusion criteria were as follows (1) palliative surgery and (2) emergency operation. Then we stratified patients into two groups (A) full-elective left colon resection and (B) quasi-elective left colon resection, defined as surgery performed after SEMS placement for obstructive colon cancer. DFS function was studied by the Kaplan-Meier method. RESULTS After 12 matching based on cancer stage, 106 patients of the group A were compared with 53 patients of group B. In each group, there were 9.4% of stage I, 39.4% of stage II, and 50.9% of stage III patients. The rate of technical failure in SEMS placement was 3.8%. After a mean follow-up of 54 months, 16 (15.1%) patients in the full-elective groups and 10 (18.9%) in the quasi-elective group experience cancer recurrence (log rank = 0.588). DFS curve did not reach the median value. CONCLUSIONS SEMS placement with interval colon resection for obstructive neoplastic strictures seems to provide similar long-term oncologic outcomes to operations performed in an elective setting when a low rate of technical failure is achieved.PURPOSE The role of laxatives after elective colorectal surgery is unclear, resulting in heterogenous guidelines and variability in clinical practice. This study aimed to gauge surgeons' preferences and practice with regard to laxative use following elective colorectal surgery. METHODS A short one-minute anonymous web-based questionnaire designed in English and Chinese (Mandarin) using the Research Electronic Data Capture application (REDCap) was distributed to member surgeons of every identifiable international colorectal specialist society via email communication, physical newsletters and social media channels. Frequency of laxative use after elective colorectal surgery, type of laxative used, and, if not used, the reasons for not using laxatives were collected. RESULTS A total of 852 surgeons, representing 28 surgical societies completed the survey 80% were colorectal surgeons and 20% were general surgeons with colorectal interest. Twenty-seven percent of the respondents routinely prescribed laxatives after colorectal surgery. There was wide variation in the type of laxatives used, with magnesium-based laxatives (42%), macrogol (Movicol, 36%) and lactulose (Duphalac, 22%) being the most common. Geographical location was correlated with choice of laxative. Those not routinely using laxatives stated the reasons as being no evidence for benefit (48%), potential of adverse events (24%), more than one reason (21%) and other (7%). The majority (93%) non-users would consider using laxatives if better evidence was available. CONCLUSION Most surgeons do not routinely prescribe laxatives after elective colorectal surgery due to lack of evidence. Amongst those surgeons who do use them, there is wide variability in the type of laxatives used.BACKGROUND Eosinophilic enterocolitis is a rare condition included in the spectrum of the eosinophilic gastrointestinal disorders. Diagnosis is based on clinical presentation combined with an increase infiltration of eosinophils in the gastrointestinal tract, in the absence of other secondary causes of eosinophilic infiltration. CASE PRESENTATION We report a case of a 22-year-old male with eosinophilic enterocolitis presenting with malabsorption syndrome (diarrhea, vomiting, weight loss), bowel wall thickening, and ascites. Secondary causes of intestinal eosinophilia were excluded, and diagnosis was established in a timely manner. Treatment plan included a 6-food elimination diet and corticosteroid therapy, with clinical remission after 2 weeks of therapy. The patient remains asymptomatic after 12 months of follow-up, with no relapse.
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