Bone is a highly heterogeneous and anisotropic material with a hierarchical structure. The effect of diaphysis locations and directions of loading on elastic-plastic compressive properties of bovine femoral cortical bone was examined in this study. The impact of location and loading directions on elastic-plastic compressive properties of cortical bone was found to be statistically insignificant in this study.
View Article and Find Full Text PDFPurpose Of Review: As the incidence of cutaneous melanoma continues to rise worldwide, its heterogeneous presentation proves challenging for managing and preventing relapse.
Recent Findings: While surgery remains a mainstay in staging and treatment of locoregional metastatic melanoma, intralesional therapies have emerged as a new tool to treat unresectable in-transit and nodal metastases and reduce the risk of relapse through immunomodulatory mechanisms. In this review, we will provide an overview of intralesional therapies for melanoma with a particular focus on talimogene laherparepvec (T-VEC) and its future uses.
This paper examines the integration of artificial intelligence (AI) in radiotherapy for cancer treatment. The importance of radiotherapy in cancer management and its time-intensive planning process make AI adoption appealing especially with the escalating demand for radiotherapy. This review highlights the efficacy of AI across medical domains, where it surpasses human capabilities in areas such as cardiology and dermatology.
View Article and Find Full Text PDFBackground: LMB-100 is a mesothelin (MSLN)-targeting recombinant immunotoxin (iTox) carrying a Pseudomonas exotoxin A payload that has shown promise against solid tumors, however, efficacy is limited by the development of neutralizing anti-drug antibodies (ADAs). Tofacitinib is an oral Janus Kinase (JAK) inhibitor that prevented ADA formation against iTox in preclinical studies.
Methods: A phase 1 trial testing LMB-100 and tofacitinib in patients with MSLN-expressing cancers (pancreatic adenocarcinoma, n=13; cholangiocarcinoma, n=1; appendiceal carcinoma, n=1; cystadenocarcinoma, n=1) was performed to assess safety and to determine if tofacitinib impacted ADA formation.
Background: Adults presenting with a neutrophil-predominant leukocytosis (white cell count >50,000/μL) often necessitate urgent medical management. These patients are diagnosed with either acute presentations of chronic myeloid malignancies or leukemoid reactions, yet accurate models to distinguish between these entities do not exist. We used demographic and lab data to build a machine learning model capable of discriminating between these diagnoses.
View Article and Find Full Text PDFThis case study delineates the proficient creation of a silicone finger prosthesis, tailored for a patient contending with partial digit amputation. The prosthesis was devised with the overarching goal of reinstating not only the physiological dexterity of the hand but also its aesthetic integrity and the patient's psychological equilibrium. The crafting process entailed a meticulous technique to replicate the intricate texture of the skin in order to guarantee a near normal appearance.
View Article and Find Full Text PDFWe present the case of a 68-year-old man with no known risk factors for HIV infection who developed a new, rapidly growing lesion on the left medial foot. The lesion was biopsied and found to be consistent with Kaposi sarcoma (KS). He subsequently tested positive for HIV and developed cellulitis of the left lower extremity.
View Article and Find Full Text PDFThe ongoing challenges posed by COVID-19 are concerning for their impact on successful detection and recognition of melanoma as total body skin examinations and skin biopsies are critical for identifying early-stage melanoma and intervening before progression to metastatic disease. A comprehensive electronic search of PubMed/MEDLINE was conducted on or before August 1, 2022, using the search terms ("skin" AND "COVID-19"), (["skin cancer" AND "COVID-19"] OR ["skin cancer" AND "coronavirus"]), (["melanoma" AND "COVID-19"] OR ["melanoma" AND "coronavirus"]), ("dermatology" AND "COVID-19"), and ("cutaneous" AND "COVID-19"). Eight articles representing Belgium, Chile, France, Germany, Spain, the United Kingdom, and the United States were included.
View Article and Find Full Text PDFPrecalcaneal congenital fibrolipomatous hamartoma (PCFH) is a rare benign skin lesion that typically presents at birth, or within the first several years of life, as single or multiple asymptomatic skin-colored papules or nodules on the plantar heels. We present a classic case of PCFH in a 3-year-old child. This uncommon entity has no reported malignant features or malignant transformations.
View Article and Find Full Text PDFChromobox 2 (CBX2) is a chromatin-binding component of polycomb repressive complex 1, which causes gene silencing. CBX2 expression is elevated in triple-negative breast cancer (TNBC), for which there are few therapeutic options. Here, we aimed to investigate the functional role of CBX2 in TNBC.
View Article and Find Full Text PDFObjectives: To test the hypothesis that ROSAH (retinal dystrophy, optic nerve oedema, splenomegaly, anhidrosis and headache) syndrome, caused by dominant mutation in , is an autoinflammatory disease.
Methods: This cohort study systematically evaluated 27 patients with ROSAH syndrome for inflammatory features and investigated the effect of mutations on immune signalling. Clinical, immunologic and radiographical examinations were performed, and 10 patients were empirically initiated on anticytokine therapy and monitored.
Anemia after allogeneic hematopoietic stem cell transplantation (HSCT) can be immune or non-immune mediated. Auto- or alloimmunity resulting from blood group incompatibility remains an important cause in post-HSCT immune-mediated anemia. ABO incompatibility is commonly encountered in HSCT and may lead to serious clinical complications, including acute hemolysis, pure red cell aplasia, and passenger lymphocyte syndrome.
View Article and Find Full Text PDFBackground: Recent case reports have described the efficacy of daratumumab to treat refractory pure red cell aplasia (PRCA) following major ABO mismatched allogeneic hematopoietic stem cell transplantation (HSCT). In this report, we describe the use of daratumumab as a first-line agent for treatment of delayed red blood cell (RBC) engraftment following a major ABO mismatched pediatric HSCT and provide a review of the literature.
Study Design And Materials: We report on a 14-year-old with DOCK8 deficiency who underwent a myeloablative, haploidentical bone marrow transplant from her major ABO mismatched sister (recipient O+, donor A+) for treatment of her primary immunodeficiency.
BMC Med
May 2020
Background: What subjects UK medical schools teach, what ways they teach subjects, and how much they teach those subjects is unclear. Whether teaching differences matter is a separate, important question. This study provides a detailed picture of timetabled undergraduate teaching activity at 25 UK medical schools, particularly in relation to problem-based learning (PBL).
View Article and Find Full Text PDFRoutine identification of carbapenemase-producing bacterial isolates is a lengthy process often taking up to 72 h to generate results with standard culture-based tests. Here we describe a rapid test based on the hydrolysis of nitrocefin to identify isolates producing β-lactamase enzymes. A cocktail of inhibitors has been optimized in the reaction mix to provide specificity for carbapenemase enzymes.
View Article and Find Full Text PDFIn their paper 'The "serious" factor in germline modification', Kleiderman, Ravitsky and Knoppers rightly highlight the ambiguity in the oft-utilised term 'serious' in legal discussions of human germline genome modification.1 They suggest interpretation of this term may benefit from a framework based on human rights rather than solely objectivist or constructivist frameworks. In this response, I show the authors provide a narrow and hasty dismissal of objectivist frameworks by defining objectivism broadly as 'based on biological facts' early on but later criticising genetic treatment lists, a single narrow implementation of only some of the facts.
View Article and Find Full Text PDFBackground: This is a facility-based study designed to assess perceived quality of care and satisfaction of reproductive health services under the output-based approach (OBA) services in Kenya from clients' perspective.
Method: An exit interview was conducted on 254 clients in public health facilities, non-governmental organizations, faith-based organizations and private facilities in Kitui, Kilifi, Kiambu, and Kisumu counties as well as in the Korogocho and Viwandani slums in Nairobi, Kenya using a 23-item scale questionnaire on quality of reproductive health services. Descriptive analysis, exploratory factor analysis, reliability test, and subgroup analysis using linear regression were performed.
Antimicrobial resistant pathogens are a growing worldwide threat to human health. This study describes a novel method for rapid and sensitive detection of antimicrobial resistance (AMR) genes, specifically bla which encodes for the enzyme that offers resistance to extended spectrum β-lactam antibiotics. The method combines isothermal DNA amplification by recombinase polymerase amplification (RPA), with microbead dielectrophoresis (DEP)-based DNA detection.
View Article and Find Full Text PDFCryptography is not only a science of applying complex mathematics and logic to design strong methods to hide data called as encryption, but also to retrieve the original data back, called decryption. The purpose of cryptography is to transmit a message between a sender and receiver such that an eavesdropper is unable to comprehend it. To accomplish this, not only we need a strong algorithm, but a strong key and a strong concept for encryption and decryption process.
View Article and Find Full Text PDFA low cost thin-film transistor (TFT) nanoribbon (NR) sensor has been developed for rapid real-time detection of DNA amplification using an isothermal Recombinase Polymerase Amplification (RPA) method. The semiconductor chip measures DNA amplification through a pH change, rather than via fluorescence. The utility of the method was demonstrated by amplifying CTX-M and NDM, two genes that confer bacterial resistance to cephalosporins and carbapenems, respectively.
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