The emerging prevalence of antimicrobial resistance demands cutting-edge therapeutic agents to treat bacterial infections. We present a synthetic strategy to construct sequence-defined oligomers (SDOs) by using dithiocarbamate (DTC). The antibacterial activity of the synthesized library of SDOs was studied using a Gram-positive and a Gram-negative .
View Article and Find Full Text PDFBackground: Portopulmonary hypertension (PoPH) occurs in patients with advanced liver disease and can be a contraindication to liver transplant (LT). Improvement of hemodynamic parameters with pulmonary arterial hypertension (PAH) therapies (including endothelin receptor antagonists [ERAs]) may help some patients to become eligible for LT.
Methods: We conducted a retrospective secondary data analysis to describe the clinical course and management of PoPH in patients on a US registry LT waitlist and outcomes in patients receiving an ERA.
Background: Sarcoidosis, a granulomatous inflammatory disease, exhibits diverse clinical manifestations, often affecting multiple organs. Diagnostic challenges arise due to its similarities with tuberculosis, particularly in high-burden areas. Differentiating between the two relies on clinical judgment, laboratory tests, imaging, and invasive procedures.
View Article and Find Full Text PDFFollowing anterior cruciate ligament (ACL) injury, quadriceps muscle atrophy persists despite rehabilitation, leading to loss of lower limb strength, osteoarthritis, poor knee joint health and reduced quality of life. However, the molecular mechanisms responsible for these deficits in hypertrophic adaptations within the quadriceps muscle following ACL injury and reconstruction are poorly understood. While resistance exercise training stimulates skeletal muscle hypertrophy, attenuation of these hypertrophic pathways can hinder rehabilitation following ACL injury and reconstruction, and ultimately lead to skeletal muscle atrophy that persists beyond ACL reconstruction, similar to disuse atrophy.
View Article and Find Full Text PDFBackground: Cancer-associated thrombosis (CAT) is a leading cause of death in patients diagnosed with cancer. However, pharmacologic thromboprophylaxis use in cancer patients must be carefully evaluated due to a 2-fold increased risk of experiencing a major bleeding event within this population. The electronic health record CAT (EHR-CAT) risk assessment model (RAM) was recently developed, and reports improved performance over the widely used Khorana score.
View Article and Find Full Text PDFBackground: Extracorporeal membrane oxygenation (ECMO) has emerged as a critical intervention in the management of patients with trauma-induced cardiorespiratory failure. This study aims to compare outcomes in patients with severe thoracic injuries with and without venovenous extracorporeal membrane oxygenation (VV-ECMO).
Methods: We performed a retrospective cohort study on Trauma Quality Improvement Program (2017-2021) and included all patients with isolated blunt thoracic injuries with Abbreviated Injury Scale score of ≥4 who required intubation.
Background: Lip carcinomas account for 23.6% to 30% of tumors affecting the oral cavity. Lip reconstruction aims to achieve a competent oral sphincter with a good cosmetic appearance while avoiding microstomia.
View Article and Find Full Text PDFMyeloid malignancies are heterogenous disorders characterized by distinct molecular drivers but share convergence of oncogenic signaling pathways and propagation by ripe pro-inflammatory niches. Here, we establish a comprehensive transcriptional atlas across the spectrum of myeloproliferative neoplasms (MPN) and secondary acute myeloid leukemia (sAML) through RNA-sequencing of 158 primary samples encompassing CD34+ hematopoietic stem/progenitor cells and CD14+ monocytes. Supported by mass cytometry (CyTOF) profiling, we reveal aberrant networks of PI3K/AKT/mTOR signalling and NFκB-mediated hyper-inflammation.
View Article and Find Full Text PDFLipid phosphate phosphatase 3 (LPP3) is a membrane-bound enzyme that hydrolyzes lipid phosphates including the bioactive lipid, lysophosphatidic acid (LPA). Elevated circulating LPA production and cellular LPA signaling are implicated in obesity-induced metabolic and cardiac dysfunction. Deletion of LPP3 in the cardiomyocyte increases circulating LPA levels and causes heart failure and mitochondrial dysfunction in mice.
View Article and Find Full Text PDFHuman bocaviruses (HBoVs) can cause respiratory illness in young children. Although the first HBoV infection in India was reported in 2010, very little information is available about its prevalence, clinical features, or geographic distribution in this country. This study was conducted using 136 respiratory samples from paediatric patients in a tertiary care hospital in Kerala, 21 of which tested positive for HBoV1 and were further characterized through VP1/VP2 gene sequencing.
View Article and Find Full Text PDFIn the context of bone fractures, the influence of the mechanical environment on the healing outcome is widely accepted, while its influence at the cellular level is still poorly understood. This study explores the influence of mechanical load on naïve mesenchymal stem cell (MSC) differentiation, focusing on hypertrophic chondrocyte differentiation. Unlike primary bone healing, which involves the direct differentiation of MSCs into bone-forming cells, endochondral ossification uses an intermediate cartilage template that remodels into bone.
View Article and Find Full Text PDFProgress in biology has generated numerous lists of genes that share some property. But advancing from these lists of genes to understanding their roles is slow and unsystematic. Here we use RNA silencing in Caenorhabditis elegans to illustrate an approach for prioritizing genes for detailed study given limited resources.
View Article and Find Full Text PDFThe Indian scad, Decapterus russelli is one of the most exploited pelagic resources of India. Population genetic analyses using mitochondrial and nuclear markers indicated a lack of genetic structuring among populations from Indian waters. As this species is highly migratory, it is also important to establish the environmental influence on its population structure.
View Article and Find Full Text PDFBackground & objectives Alkaptonuria (AKU) is an autosomal recessive disease wherein biallelic pathogenic variants in the homogentisate 1,2- dioxygenase (HGD) gene encoding the enzyme homogentisate 1,2 dioxygenase cause high levels of homogentisic acid (HGA) to circulate within the body leading to its deposition in connective tissues and excretion in urine. A homozygous splice donor variant (c.87+1G>A) has been identified to be the founder variant causing alkaptonuria among Narikuravars, a group of gypsies settled in Tamil Nadu.
View Article and Find Full Text PDFBackground: This study aims to compare outcomes of robotic cholecystectomy (RC) versus laparoscopic cholecystectomy (LC) in the setting of a level 1 trauma center.
Methods: We performed a retrospective study of our hospital data (2021-2024) on patients who underwent LC or RC. Using a previously validated intraoperative grading system, four grades of cholecystitis were defined as mild (A), moderate (B), severe (C), and extreme (D).
Background: Stroke is a leading cause of global mortality and disability, with a disproportionately high burden in low- and middle-income countries. Access to intravenous thrombolysis (IVT) and endovascular treatment (EVT) remains extremely limited.
Aims: We evaluated the spatial distribution and geographic accessibility of stroke centers in India.
Few sources have reported empirical social contact data from resource-poor settings. To address this shortfall, we recruited 1,363 participants from rural and urban areas of Mozambique during the COVID-19 pandemic, determining age, sex, and relation to the contact for each person. Participants reported a mean of 8.
View Article and Find Full Text PDFObjectives: The objectives of this study are to determine the functional outcomes and compare them between conservative and surgical management in patients managed for closed-type intra-articular distal end of radius fractures.
Methods: A prospective observational study was done on 150 patients who underwent treatment for closed-type intra-articular distal end of radius fractures. As per Frykman Classification, they were type III.
Purpose: Wiskott-Aldrich syndrome (WAS) is an X-linked genetic disorder characterized by distinctive features including microthrombocytopenia, eczema and recurrent infections. In the present study we report clinical, immunological and molecular spectrum of 41 WAS patients diagnosed over last five years.
Methods: Clinical and family history was collected from case records.
J Assoc Physicians India
December 2024
Unlabelled: Introduction and importance: High-grade B-cell lymphoma (HGBCL) is a highly aggressive form of B-cell non-Hodgkin lymphoma. Lymphoma involvement of the gallbladder is rare, with a reported incidence of 0.1-0.
View Article and Find Full Text PDFJ Assoc Physicians India
December 2024
India has a high burden of hypertension (HTN), which is often poorly controlled, leading to hypertension-mediated organ damage (HMOD). In the management of HTN, angiotensin receptor blockers (ARBs) assume prime importance, being first-line agents for most patient subgroups. Olmesartan is a highly efficacious ARB that demonstrates sustained blood pressure (BP) reduction over 24 hours.
View Article and Find Full Text PDFBackground: Hypothermia is known to contribute to poor outcomes in trauma patients during acute phases. The aim of our study is to evaluate the effect of hypothermia on admission, upon in-hospital complications and mortality in adult trauma patients.
Methods: We performed a 5-year analysis of ACS-TQIP database (2017-2021).
Animals can move towards or away from an odorant. Such chemotaxis has been used as a paradigm for learning when coupled with pre-exposure to the sensed odorant. Here we develop an assay for the nematode that avoids the typical use of chemical or physical immobilization when measuring the response of worms to odorants.
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