Management of Colonic Trauma: Six-Year Experience at Henry Ford Hospital

Surgical management of 114 patients with colonic injuries related to trauma who were treated over a six-year period is reviewed. Eighty-three (73%) injuries were secondary to gunshot wounds. Twenty-six patients (24%) had isolated colonic injuries. The majority of patients (60%)) were treated with colostomies: exteriorization of the injury, repair with proximal colostomy, or resection with colostomy and mucous fistula. Exteriorization of repaired colon, primary repair, and resection with primary anastomosis were performed in 40% of the patients. Six patients (5.3%) in our series died, and 24% had complications directly related to the colon injury. Based on this study, no standard method for treatment of colonic trauma is advised. Colostomy is recommended for patients with massive multiple intra-abdominal injuries and gross fecal contamination. In selected patients, primary repair may be performed

In search of lost time: age and the promise of induced pluripotent stem cell models of the brain

This paper explores the promise of induced pluripotent stem cells as a model system for the study of neurodegenerative diseases of Alzheimer’s, Parkinson’s and other diseases of the aging brain. Research in these areas, as in neuroscience more broadly, has struggled with the imperfect mapping between human and animal brains. The paper argues that the contemporary promise of induced pluripotent stem cells for research is established through their potential to resolve problems of translation, bridging laboratory and clinical contexts by acting as a model of “real” patient bodies. However, the paper shows how this promise is contested and renewed through a rearticulation of the relationship between neurodegeneration, aging and the qualities of “young” and “aged” bodies. This not only results in the introduction of new qualities and attributes to the model system, but also a re-imagining of how aging features within both late and early-onset neurological diseases.The research was funded through the NIHR Cambridge Biomedical Research Centre, a partnership between the University of Cambridge and Cambridge University Hospitals NHS Foundation Trust

The contribution of tropical cyclones to the atmospheric branch of Middle America's hydrological cycle using observed and reanalysis tracks

Middle America is affected by tropical cyclones (TCs) from the Eastern Pacific and the North Atlantic Oceans. We characterize the regional climatology (1998-2016) of the TC contributions to the atmospheric branch of the hydrological cycle, from May to December. TC contributions to rainfall are quantified using Tropical Rainfall Measuring Mission (TRMM) Multi-satellite Precipitation Analysis (TMPA) product 3B42 and TC tracks derived from three sources: the International Best Track Archive for Climate Stewardship (IBTrACS), and an objective feature tracking method applied to the Japanese 55-year and ERA-Interim reanalyses. From July to October, TCs contribute 10-30% of rainfall over the west and east coast of Mexico and central Mexico, with the largest monthly contribution during September over the Baja California Peninsula (up to 90%). TCs are associated with 40-60% of daily extreme rainfall (above the 95th percentile) over the coasts of Mexico. IBTrACS and reanalyses agree on TC contributions over the Atlantic Ocean but disagree over the Eastern Pacific Ocean and continent; differences over the continent are mainly attributed to discrepancies in TC tracks in proximity to the coast and TC lifetime. Reanalysis estimates of TC moisture transports show that TCs are an important moisture source for the regional water budget. TC vertically integrated moisture flux (VIMF) convergence can turn regions of weak VIMF divergence by the mean circulation into regions of weak VIMF convergence. We discuss deficiencies in the observed and reanalysis TC tracks, which limit our ability to quantify robustly the contribution of TCs to the regional hydrological cycle

Defective Lamin A-Rb Signaling in Hutchinson-Gilford Progeria Syndrome and Reversal by Farnesyltransferase Inhibition

Hutchinson-Gilford Progeria Syndrome (HGPS) is a rare premature aging disorder caused by a de novo heterozygous point mutation G608G (GGC>GGT) within exon 11 of LMNA gene encoding A-type nuclear lamins. This mutation elicits an internal deletion of 50 amino acids in the carboxyl-terminus of prelamin A. The truncated protein, progerin, retains a farnesylated cysteine at its carboxyl terminus, a modification involved in HGPS pathogenesis. Inhibition of protein farnesylation has been shown to improve abnormal nuclear morphology and phenotype in cellular and animal models of HGPS. We analyzed global gene expression changes in fibroblasts from human subjects with HGPS and found that a lamin A-Rb signaling network is a major defective regulatory axis. Treatment of fibroblasts with a protein farnesyltransferase inhibitor reversed the gene expression defects. Our study identifies Rb as a key factor in HGPS pathogenesis and suggests that its modulation could ameliorate premature aging and possibly complications of physiological aging

What’s a (Childless) Man Without a Woman? The Differential Importance of Couple Dynamics for the Wellbeing of Childless Men and Women in the Netherlands

Using rich couple data from the Netherlands Kinship Panel Study, we investigated to what extent there were gender differences in couple dynamics within childless couples (N = 163). Though the childless partners reported similar relationship satisfaction, we found gender differences in the link between relationship conflict and relationship satisfaction - the childless men were more strongly affected by the negative aspects of the partnership. This gender difference was not evident for the association between partner support and relationship satisfaction - the positive aspects of the partnership were equally important for the male and the female childless partners. Furthermore, the association between relationship satisfaction and health was stronger for the childless men than for the childless women and this difference was particularly evident when the levels of relationship satisfaction were low. These results indicate that when they are in unsatisfying romantic relationships, childless men are at a greater risk than childless women of physical and mental ill health