Cellular senescence is a diverse phenotype characterised by permanent cell cycle arrest and an associated secretory phenotype (SASP) which includes inflammatory cytokines. Typically, senescent cells are removed by the immune system, but this process becomes dysregulated with age causing senescent cells to accumulate and induce chronic inflammatory signalling. Identifying senescent cells is challenging due to senescence phenotype heterogeneity, and senotherapy often requires a combinatorial approach.
View Article and Find Full Text PDFSkin ageing is defined, in part, by collagen depletion and fragmentation that leads to a loss of mechanical tension. This is currently believed to reflect, in part, the accumulation of senescent cells. We compared the expression of genes and proteins for components of the extracellular matrix (ECM) as well as their regulators and found that in vitro senescent cells produced more matrix metalloproteinases (MMPs) than proliferating cells from adult and neonatal donors.
View Article and Find Full Text PDFAim: To explore the published evidence describing the impact of short-notice accreditation assessments on hospitals' patient safety and quality culture.
Design: Arksey and O'Malley (2005)'s scoping study framework and Preferred Reporting Items for Systematic Reviews and Meta-Analysis Extension for Scoping reviews (PRISMA-ScR).
Methods: A scoping review was conducted to identify papers that provided an evaluation of short-notice accreditation processes.
Front Aging Neurosci
December 2023
Multiple myeloma (MM) remains an incurable malignancy originating from plasma cells. Despite significant advances in treatment, relapses remain inevitable, and novel therapies continue to be needed. Teclistamab-cqyv is a first-in-class, bispecific T-cell engager (BiTE) antibody for the treatment of MM.
View Article and Find Full Text PDFThe ageing process is highly complex involving multiple processes operating at different biological levels. Systems Biology presents an approach using integrative computational and laboratory study that allows us to address such complexity. The approach relies on the computational analysis of knowledge and data to generate predictive models that may be validated with further laboratory experimentation.
View Article and Find Full Text PDFBackground: There is no consensus on the most effective treatments of pulmonary arterial hypertension (PAH). Our objective was to compare effects of medications for PAH.
Methods: We searched MEDLINE, Embase, the Cochrane Central Register of Controlled Trials and Clinicaltrials.
We present a case of a 30-year-old Hispanic male with pelvic outlet obstruction syndrome secondary to a large pelvic abscess caused by Bovismorbificans. This case demonstrates a potentially serious complication of a rare foodborne illness in the United States, in which an urgent surgical intervention was warranted. A computed tomography (CT) scan of the abdomen and pelvis demonstrated a large pelvic cystic mass causing near-total pelvic outlet obstruction of both gastrointestinal and genitourinary systems.
View Article and Find Full Text PDFObjective: To review quality of care in births planned in midwifery-led settings, resulting in an intrapartum-related perinatal death.
Design: Confidential enquiry.
Setting: England, Scotland and Wales.
This cadaveric study assessed factors that could lead to nonunions in subtalar joint arthrodesis. The purpose of this study was to assist surgeons in achieving sufficient joint preparation in hopes to achieve more frequent arthrodesis of the subtalar joint. We evaluated the influence of experience in regard to cartilage preparation of the joint.
View Article and Find Full Text PDFBleeding related to portal hypertension and coagulopathy is a common complication in patients with cirrhosis. Complications and management of bleeding is a significant source of healthcare cost and utilization, as well as morbidity and mortality. Due to the scarcity of evidence surrounding transfusion strategies and hemostatic interventions in patients with cirrhosis, there has been significant debate regarding the best practice.
View Article and Find Full Text PDFBackground: The Pragmatic, Randomized Optimal Platelets and Plasma Ratios (PROPPR) trial was a randomized clinical trial comparing survival after transfusion of two different blood component ratios for emergency resuscitation of traumatic massive hemorrhage. Transfusion services supporting the study were expected to provide thawed plasma, platelets, and red blood cells within 10 minutes of request.
Study Design And Methods: At the 12 Level 1 trauma centers participating in PROPPR, blood components transfused and delivery times were tabulated, with a focus on universal donor (UD) plasma management.
J Foot Ankle Surg
October 2010
A wide range of techniques has been described to achieve subtalar (talocalcaneal) arthrodesis using interfragmental screw fixation. In this technical report, we describe a method that enables us to accurately position 2 screws across the subtalar joint in order to achieve arthrodesis between the talus and calcaneus. Careful attention to the tips described in this report should minimize the risk of aberrant placement of the screws while expediting the process of osteosynthesis.
View Article and Find Full Text PDFObjective: To assess histologic damage and functional impairment following coaxial tubal catheterization.
Design: Prospective randomized controlled study.
Setting: Research laboratory.
Hypothesis: Extra-abdominal injury negatively affects the outcome of abdominal injury following trauma laparotomy.
Design: Retrospective review of 920 consecutive patients receiving laparotomy for trauma who survived more than 24 h between January 1989 and May 1998 at a Level 1 trauma center. Major abdominal complications (MAC) were defined as: abdominal compartment syndrome (ACS), abscess/peritonitis, enterocutaneous fistula, necrotizing fasciitis, and necrotizing pancreatitis.
Heel pain is one of the most common presenting complaints to the foot and ankle specialist. There are many causes for subcalcaneal heel pain, including biomechanical, traumatic, those related to several types of arthritides and tumors, and anatomic causes. This article describes pathologic conditions of the heel, concentrating on tumors and arthritides.
View Article and Find Full Text PDFPeroneal tendon pathology is a common cause of lateral ankle pain. Because of the difficulty of distinguishing peroneal tendon injuries from lateral ligament injuries in the setting of ankle trauma, early diagnosis is often missed. Failure to recognize and adequately treat these injuries can result in significant long-term disability.
View Article and Find Full Text PDFOur experience led us to test the hypothesis that lymph nodes are not uncommon within the substance of the human female breast mound. The following specimen types and sources were used to survey the presence of intramammary lymph nodes in the human female breast mound: (1) cadaver breasts; (2) community hospital breast specimens; and (3) university and VA hospital specimens. We found true lymph nodes within and associated with breast specific tissue (ie, tissue that includes duct and gland structures), thereby validating the hypothesis posed.
View Article and Find Full Text PDFJ Vasc Interv Radiol
February 1997
Purpose: To test, in an animal model, two potentially suitable materials for nonsurgical selective tubal sterilization.
Materials And Methods: A hydrogel that forms an in situ plug by phase inversion of a polymer solution was placed in four rabbit fallopian tubes, and a proprietary collagen glue was placed into three rabbit fallopian tubes by means of transvaginal fluoroscopic fallopian tube catheterization. As controls, 11 tubes were catheterized without sterilization material injection.
A survey of 21 beers produced in Spain during 1994 was conducted to assess contamination with volatile N-nitrosamines. N-Nitrosodimethylamine (NDMA), the only volatile N-nitrosamine detected, was found in 52% of Spanish beers at or above the detection level (0.05 microgram/kg).
View Article and Find Full Text PDFWe prospectively identified 12 patients who had a shelf at the margin of the placenta consistent with the diagnosis of circumvallate placenta. Ten patients were followed to delivery and three placentas were sent for pathologic analysis. Circumvallate placenta was diagnosed by gross inspection in all three but was confirmed by microscopic analysis in only two.
View Article and Find Full Text PDFPurpose: To test a method of nonsurgical sterilization.
Materials And Methods: A hydrogel that forms an in situ plug by phase inversion of a polymer solution was placed into fallopian tubes of eight rabbits by means of transvaginal rabbits by means of transvaginal fluoroscopic fallopian tube catheterization. The rabbits were bred, and the presence of embryos was confirmed with palpation and at autopsy.