Mesenchymal stem cells: from experiment to clinic

There is currently much interest in adult mesenchymal stem cells (MSCs) and their ability to differentiate into other cell types, and to partake in the anatomy and physiology of remote organs. It is now clear these cells may be purified from several organs in the body besides bone marrow. MSCs take part in wound healing by contributing to myofibroblast and possibly fibroblast populations, and may be involved in epithelial tissue regeneration in certain organs, although this remains more controversial. In this review, we examine the ability of MSCs to modulate liver, kidney, heart and intestinal repair, and we update their opposing qualities of being less immunogenic and therefore tolerated in a transplant situation, yet being able to contribute to xenograft models of human tumour formation in other contexts. However, such observations have not been replicated in the clinic. Recent studies showing the clinical safety of MSC in several pathologies are discussed. The possible opposing powers of MSC need careful understanding and control if their clinical potential is to be realised with long-term safety for patients

Physician attire: physicians perspectives on attire in a community hospital setting among non-surgical specialties

Background: Several studies have demonstrated a patient preference for physicians wearing a white coat associated with improved patient satisfaction. There are few studies on physicians\u27 perceptions of attire mainly done in the outpatient and surgical specialties. Objective: Assess non-surgical physicians\u27 perception of attire in the hospital and to identify if any difference in the choice of attire amongst generation X and millennial physicians. Methods: We surveyed 86 physicians in the hospital with six sets of pictures of commonly worn physician attires in the hospital setting with a two-part questionnaire. Key Results: Formal attire with a white coat was found to be most favored, followed by formal without a white coat. Casual attire without a white coat was the least preferred across the surveyed attributes. The results were similar in generation X and millennial physicians. Only 49% concordance was observed with what physicians preferred and what they wore. Conclusion: Our study showed that physicians felt wearing a white coat was the best to convey specific attributes like honesty, confidence, professionalism, among others, similar to prior studies done in patients. However, less than half of the physicians surveyed themselves followed the preferred attire

The role of the NMD factor UPF3B in olfactory sensory neurons.

The UPF3B-dependent branch of the nonsense-mediated RNA decay (NMD) pathway is critical for human cognition. Here, we examined the role of UPF3B in the olfactory system. Single-cell RNA-sequencing (scRNA-seq) analysis demonstrated considerable heterogeneity of olfactory sensory neuron (OSN) cell populations in wild-type (WT) mice, and revealed that UPF3B loss influences specific subsets of these cell populations. UPF3B also regulates the expression of a large cadre of antimicrobial genes in OSNs, and promotes the selection of specific olfactory receptor (Olfr) genes for expression in mature OSNs (mOSNs). RNA-seq and Ribotag analyses identified classes of mRNAs expressed and translated at different levels in WT and Upf3b-null mOSNs. Integrating multiple computational approaches, UPF3B-dependent NMD target transcripts that are candidates to mediate the functions of NMD in mOSNs were identified in vivo. Together, our data provides a valuable resource for the olfactory field and insights into the roles of NMD in vivo