29,086 results match your criteria: "A.K.; Pitie - Salpetriere University Hospital; ICAN[Affiliation]"

Article Synopsis
  • Researchers are exploring renewable energy sources like solar cell technology to replace fossil fuels and reduce environmental impacts, focusing on lead-free halide perovskite compounds CsXInBr (where X is Cu or Ag).
  • The study found that CsAgInBr and CsCuInBr compounds exhibit desirable properties for solar applications, with calculated optical gaps and high absorption coefficients, particularly noting CsCuInBr's effectiveness in absorbing sunlight due to its high infrared absorption.
  • The analysis utilized the Abinit computational package and density functional theory (DFT) to evaluate the electronic, structural, and optical characteristics of these compounds, framing potential applications in solar cells and detectors.
View Article and Find Full Text PDF

Genomic analysis of surgical patients to identify patients at risk for postoperative sepsis and surgical site infection.

J Trauma Acute Care Surg

January 2025

From the Division of Trauma and Critical Care, Department of Surgery (K.S.A.), Feinberg School of Medicine, Northwestern University, Illinois; Department of Surgery (K.S.A.), School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin; Department of Organ Surgery and Transplantation (M.A.C.) and Department of Organ Surgery and Transplantation (A.B.), University of Copenhagen, Copenhagen, Denmark; Department of Surgery (W.-Q.W.), Vanderbilt University Medical Center, Tennessee, Nashville; Department of Surgery (A.K.), Columbia University Medical Center, New York; Center for Genetic Medicine (J.P., M.R.-P.), Feinberg School of Medicine, Northwestern University; Department of Anesthesiology (R.J.M.), Rush University Medical Center; Division of Trauma and Critical Care, Department of Surgery (H.B.A.), Feinberg School of Medicine, Northwestern University, Chicago, IL; and Department of Organ Surgery and Transplantation (M.H.S.), University of Copenhagen, Copenhagen, Denmark.

Background: Early and accurate diagnosis of sepsis and the ensuing organ dysfunction remain a challenge in the postoperative setting. Susceptibility to infections, as well as the subsequent immunological response, are driven to some extent by the genetic predisposition of the patient. The purpose of this study was to identify novel genetic variants associated with postoperative sepsis (POS) and surgical site infections (SSIs).

View Article and Find Full Text PDF

Programmed cell death (apoptosis) is essential part of the process of tissue regeneration that also plays role in the mechanism of pathology. The phenomenon of fast and transient permeability of mitochondrial membranes by various triggers, known as permeability transition pore (mPTP) leads to the release of proapoptotic proteins and acts as an initial step in initiation of apoptosis. However, a role for mPTP was also suggested for physiology and it is unclear if there is a threshold in number of mitochondria with mPTP which induces cell death and how this mechanism is regulated in different tissues.

View Article and Find Full Text PDF

Impaired fibroblast growth factor receptor (FGFR) signaling is associated with many human conditions, including growth disorders, degenerative diseases, and cancer. Current FGFR therapeutics are based on chemical inhibitors of FGFR tyrosine kinase activity (TKIs). However, FGFR TKIs are limited in their target specificity as they generally inhibit all FGFRs and other receptor tyrosine kinases.

View Article and Find Full Text PDF

In the area of thermal management, thermal control elements (TCEs) and thermal control circuits (TCCs) are proving to be innovative solutions to the challenges of temperature control and heat dissipation in various applications, ranging from electronic cooling to energy conversion and temperature control in buildings. Their integration promises to improve power density, energy efficiency, system reliability and system life expectancy. With the aim of connecting researchers in the field of thermal management and accelerating the development of TCEs and TCCs, we have developed an open-source TCC simulation tool called TCCbuilder that enables a quick and easy time-dependent 1D numerical analysis of the behavior of TCEs and TCCs.

View Article and Find Full Text PDF
Article Synopsis
  • A study explored the antioxidant activity of six hydrazone compounds against HOO˙ and CHOO˙ radicals using DFT methods, focusing on three mechanisms: HAT, SETPT, and SPLET.
  • Compound 2 was found to have the highest scavenging rate constants for both radicals, with significant activity in the gas phase as well as in aqueous solutions.
  • Overall, compound 2 demonstrates potential as an effective antioxidant, outperforming some commonly known antioxidants in scavenging activities within physiological environments.
View Article and Find Full Text PDF

Hypofunction of the N-methyl-D-aspartate receptor (NMDAR) has been proposed to underlie the pathophysiology of schizophrenia, suggesting that promoting NMDAR activity may alleviate the negative or cognitive symptoms associated with schizophrenia. To circumvent excitotoxicity that may accompany direct agonism of the glutamate binding site on the NMDAR, therapeutic trials have focused on targeting the glycine binding site on the NMDAR. Direct administration of either glycine or D-serine, both of which are endogenous coagonists at the NMDAR glycine site, has yielded mixed outcomes across an array of clinical trials investigating different doses or patient populations.

View Article and Find Full Text PDF

Pharmacological Management of IgG4-Related Disease: From Traditional to Mechanism-Based Targeted Therapies.

Drugs Aging

January 2025

Division of Rheumatology, Department of Internal Medicine, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.

IgG4-related disease (IgG4-RD) is an immune-mediated disorder characterized by organ enlargement and dysfunction. The formation of tertiary lymphoid tissues (TLTs) in affected organs is crucial for understanding IgG4-RD, as T follicular helper (Tfh) 2 cells within TLTs drive IgG4+B cell differentiation, contributing to mass formation. Key cytokines IL-4 and IL-10, produced by Tfh2 cells, are essential for this process.

View Article and Find Full Text PDF

Nanobody-based indirect competitive ELISA for the detection of aflatoxin M1 in dairy products.

Sci Rep

January 2025

Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot, 010018, China.

Aflatoxin M1 (AFM1) is known to be carcinogenic, mutagenic, and teratogenic and poses a serious threat to food safety and human health, which makes its surveillance critical. In this study, an indirect competitive ELISA (icELISA) based on a nanobody (Nb M4) was developed for the sensitive and rapid detection of AFM1 in dairy products. In our previous work, Nb M4 was screened from a Bactrian-camel-immunized phage-displayed library.

View Article and Find Full Text PDF

A series of novel phenylamino quinazolinone derivatives were designed and synthesized as potential tyrosinase inhibitors. Among these compounds, 9r emerged as the most potent derivative, exhibiting IC values of 17.02 ± 1.

View Article and Find Full Text PDF

Background: In this study, thermophilic pectinase-producing strains were isolated. Among all the isolates, strain No. 4 was identified as Aspergillus fumigatus BT-4 based on its morphology and 18 S rDNA analysis.

View Article and Find Full Text PDF

FOXM1 is the "Achilles' heel" of cancers and hence the potential therapeutic target for anticancer drug discovery. In this work, we selected high affinity peptides against the protein of human DNA binding domain of FOXM1 (FOXM1-DBD) from the disulfide-constrained, phage displayed random cyclic heptapeptide library Ph.D.

View Article and Find Full Text PDF

Interstitial cells of Cajal in the plane of the myenteric plexus (ICC-MY) serve as electrical pacemakers in the stomach and small intestine. A similar population of cells is found in the colon, but these cells do not appear to generate regular slow wave potentials, as characteristic in more proximal gut regions. Ca handling mechanisms in ICC-MY of the mouse proximal colon were studied using confocal imaging of muscles from animals expressing GCaMP6f exclusively in ICC.

View Article and Find Full Text PDF

Salvage pathway of vitamin B absorption in chickens with mutant tumor virus a receptor.

Poult Sci

December 2024

Department of Agricultural Biotechnology and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea; Department of International Agricultural Technology & Institute of Green Bioscience and Technology, Seoul National University, Pyeongchang, Republic of Korea. Electronic address:

The tumor virus A receptor (TVA), a member of the low-density lipoprotein receptor (LDLR) family, serves as an entry receptor for Avian Leukosis Virus (ALV) subgroups A and K, as well as a receptor for vitamin B bound to transcobalamin. Naturally occurring genetic variants in the TVA gene determine susceptibility or resistance to ALV-A and -K, but the effects of these mutated TVA on vitamin B uptake have not been investigated systemically. We found four TVA variants comprising the wild type (TVA), a single nucleotide polymorphism variant (TVA), and two partial deletions in the splicing branch point region (TVA).

View Article and Find Full Text PDF

The forward design of biosensors that implement Boolean logic to improve detection precision primarily relies on programming genetic components to control transcriptional responses. However, cell- and gene-free nanomaterials programmed with logical functions may present lower barriers for clinical translation. Here we report the design of activity-based nanosensors that implement AND-gate logic without genetic parts via bi-labile cyclic peptides.

View Article and Find Full Text PDF

Design, synthesis, in vitro, and in silico studies of 4-fluorocinnamaldehyde based thiosemicarbazones as urease inhibitors.

Sci Rep

January 2025

Department of Chemical and Biological Engineering, College of Engineering, Korea University, Seoul, 02841, Republic of Korea.

Clinically significant problems such as kidney stones and stomach ulcers are linked to the activation of the urease enzyme. At low pH, this enzyme gives an ideal environment to Helicobacter pylori in the stomach which is the cause of gastric ulcers and peptic ulcers. In recent work, we have developed a library of 4-fluorocinnamaldehyde base thiosemicarbazones and assessed them for their potential against urease enzyme.

View Article and Find Full Text PDF

Pluripotent stem-cell-derived therapies in clinical trial: A 2025 update.

Cell Stem Cell

January 2025

Carpenter Consulting Corporation, Washington, USA. Electronic address:

Since the first derivation of human pluripotent stem cells (hPSCs) 27 years ago, technologies to control their differentiation and manufacturing have advanced immensely, enabling increasing numbers of clinical trials with hPSC-derived products. Here, we revew the landscape of interventional hPSC trials worldwide, highlighting available data on clinical safety and efficacy. As of December 2024, we identify 116 clinical trials with regulatory approval, testing 83 hPSC products.

View Article and Find Full Text PDF

Genetic factors shaping the plasma lipidome and the relations to cardiometabolic risk in children and adolescents.

EBioMedicine

January 2025

Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark. Electronic address:

Background: Lipid species are emerging as biomarkers for cardiometabolic risk in both adults and children. The genetic regulation of lipid species and their impact on cardiometabolic risk during early life remain unexplored.

Methods: Using mass spectrometry-based lipidomics, we measured 227 plasma lipid species in 1149 children and adolescents (44.

View Article and Find Full Text PDF

Background: Flat epithelial atypia (FEA), a rare breast proliferative lesion, is often diagnosed following core biopsy (CB) of mammographic microcalcifications. In the prospective multi-institution TBCRC 034 trial, we investigate the upgrade rate to ductal carcinoma in situ (DCIS) or invasive cancer following excision for patients diagnosed with FEA on CB.

Patients And Methods: Patients with a breast imaging reporting and data system (BI-RADS) ≤ 4 imaging abnormality and a concordant CB diagnosis of FEA were identified for excision.

View Article and Find Full Text PDF

Umbilical Cord Amniotic Membrane Graft as a Skin Substitute in Periocular Reconstruction: A Case Series.

Ophthalmic Plast Reconstr Surg

January 2025

Kahana Oculoplastic and Orbital Surgery, Livonia, Michigan.

Loss of periocular skin due to cancer, trauma, or surgery is a major reconstructive challenge; resultant tissue contracture can cause eyelid malposition with poor functional and aesthetic outcomes. We describe the successful use of cryopreserved umbilical cord amniotic membrane as a wound covering and scaffold for periorbital anterior lamellar defects. This is a retrospective case series of 4 patients (mean 21 years, range 9-30 years, 3 male) who underwent periocular reconstruction with umbilical cord amniotic membrane of 9 different sites.

View Article and Find Full Text PDF

The principal constituent of liquorice root () is glycyrrhizin, a triterpene saponin that is approximately many times sweeter than sucrose, the main active component. This study aimed to investigate the dietary liquorice root powder (LRP) on production performance, serum biochemical, gut health and carcass characteristics of Kadaknath (KN) birds as replacement of antibiotic growth promoter. Day-old Kadaknath chicks (n = 240) with uniform body weight were selected randomly and divided into six different treatments, each one with five replicates and eight birds per replicate, and raised in battery brooder cages for 15 weeks.

View Article and Find Full Text PDF

Education Research: Utilization of Simulation in Residency Programs: A Survey of Adult Neurology Residency Program Directors.

Neurol Educ

December 2024

From the Department of Neurology (S.G., I.A., J.B., M.B., I.K.), Columbia University Vagelos College of Physicians and Surgeons, New York, NY; Department of Neurology (C.S.W.A.), Emory University School of Medicine, Atlanta, GA; Department of Neurology (N.A. Malhotra, A.K.), NYU Grossman School of Medicine, New York; Department of Neurology (R.S.), Johns Hopkins School of Medicine, Baltimore, MD; Department of Neurology (J.F., Y.M.-D.), Northwestern University Feinberg School of Medicine, Chicago, IL; Department of Neurology (N.M.), University of Miami Leonard M. Miller School of Medicine, FL; Department of Neurology (B.W.), University of Florida College of Medicine, Gainesville; Department of Neurology (Z.T.), F. Edward Hebert School of Medicine, Uniformed Services University, Bethesda, MD; and Department of Neurology (N.A. Morris), University of Maryland School of Medicine, Baltimore.

Background And Objectives: Previous research has demonstrated that simulation-based medical education (SBME) can improve neurology trainees' confidence, knowledge, and competence. However, a general needs assessment and review of current SBME used within neurology are needed to guide SBME curriculum development. The objective of this study was to describe the current use of SBME in resident education and to assess perceived barriers to expanding SBME interventions.

View Article and Find Full Text PDF

C1QBP exhibits heightened expression across a spectrum of tumours, thereby fostering their proliferation and metastasis, rendering it a pivotal therapeutic target. Nevertheless, to date, no pharmacological agents capable of directly targeting and inducing the degradation of C1QBP have been identified. In this study, we have unveiled a new peptide, PDBAG1, derived from the precursor protein GPD1, employing a peptidomics-based drug screening strategy.

View Article and Find Full Text PDF

Worldwide, Cancer remains a significant health concern due to its high mortality rates. Despite numerous traditional therapies and wet-laboratory methods for treating cancer-affected cells, these approaches often face limitations, including high costs and substantial side effects. Recently the high selectivity of peptides has garnered significant attention from scientists due to their reliable targeted actions and minimal adverse effects.

View Article and Find Full Text PDF

Dengue virus IgG and neutralizing antibody titers measured with standard and mature viruses are protective.

Nat Commun

January 2025

Viral Epidemiology and Immunity Unit, Laboratory of Infectious Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland, USA.

The standard dengue virus (DENV) neutralization assay inconsistently predicts dengue protection. We compare how IgG ELISA, envelope domain III (EDIII), or non-structural protein 1 (NS1) binding antibodies, and titers from plaque reduction neutralization tests (PRNTs) using standard and mature viruses are associated with dengue. The ELISA measures IgG antibodies that bind to inactivated DENV1-4.

View Article and Find Full Text PDF