926,486 results match your criteria: "AB; Alberta Children's Hospital Research Institute[Affiliation]"

Cytokines, chemokines and growth factors involved in keloids pathogenesis.

An Bras Dermatol

January 2025

Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China. Electronic address:

Keloid is a common fibrotic disease, which is difficult to treat. It often causes itching and pain, which greatly disturbs patients in their work and daily life and causing difficulties in social interaction. Its pathogenesis is not clear, but may be related to several aspects: genetic susceptibility, environmental, immunological and endocrine factors, trauma and tension.

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Mitochondrial HMG-CoA synthase deficiency.

Mol Genet Metab

January 2025

Clinical Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium. Electronic address:

Mitochondrial 3-hydroxy-3-methylglutaryl-CoA synthase 2 (HMGCS2) deficiency is a rare, potentially life-threatening autosomal recessive disorder resulting from mutations in the HMGCS2 gene, leading to impaired ketogenesis. We systematically reviewed the clinical presentations, biochemical and genetic abnormalities in 93 reported cases and 2 new patients diagnosed based on biochemical findings. Reported onset ages ranged from 3 months to 6 years, mostly before the age of 3.

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Background: Dermatomyositis is a chronic autoimmune disease with distinctive cutaneous eruptions and muscle weakness, and the pathophysiology is characterised by type I interferon (IFN) dysregulation. This study aims to assess the efficacy, safety, and target engagement of dazukibart, a potent, selective, humanised IgG1 neutralising monoclonal antibody directed against IFNβ, in adults with moderate-to-severe dermatomyositis.

Methods: This multicentre, double-blind, randomised, placebo-controlled, phase 2 trial was conducted at 25 university-based hospitals and outpatient sites in Germany, Hungary, Poland, Spain, and the USA.

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Background: Aarskog-Scott syndrome (AAS) is a rare condition with multiple congenital anomalies, caused by hemizygote variants in the gene. Its description was based mostly on old case reports, in whom a molecular diagnosis was not always available, or on small series. The aim of this study was to better delineate the phenotype and the natural history of AAS and to provide clues for the diagnosis and the management of the patients.

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Background: Efanesoctocog is a B-domain-deleted, Fc-fusion FVIII linked to the D'D3 domain of VWF and two XTEN polypeptides, designed for an ultra-extended half-life for prophylaxis in hemophilia A, but also aiding in managing acute bleeding or surgery in patients on long-term emicizumab. However, no current laboratory method accurately measures FVIII levels in the presence of emicizumab. We hypothesized that the chromogenic (CSA) FVIII assay, specifically calibrated for efanesoctocog using bovine coagulation factors, could provide an accurate assessment of efanesoctocog activity.

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The pathogenesis of depression: roles of connexin 43-based gap junctions and inflammation.

Eur J Pharmacol

January 2025

State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica & Neuroscience Center, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 100050, China; Hunan University of Traditional Chinese Medicine & Hunan Engineering Technology Center of Standardization and Function of Chinese Herbal Decoction Pieces, Changsha 410208 Hunan, China. Electronic address:

Background: Depression is a leading chronic mental illness worldwide, characterized by anhedonia and pessimism. Connexin is a kind of widely distributed protein in the body. Connexin 43 (Cx43) plays an important role in the pathogenesis of depression.

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Background: Ginseng-Schisandra chinensis (GSC) decoction has shown good efficacy in the treatment of asthma, but its t mechanism in the treatment of asthma is still not fully understood.

Purpose: This study aims to elucidate the therapeutic mechanism of GSC for AS by identifying the active components of GSC.

Methods: The chemical composition of GSC was analyzed using UHPLC-MS/MS.

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The role of mitochondrial remodeling in neurodegenerative diseases.

Neurochem Int

January 2025

Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China; Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan, 523808, PR China. Electronic address:

Neurodegenerative diseases are a group of diseases that pose a serious threat to human health, such as Alzheimer's disease (AD), Parkinson's disease (PD), Huntington's disease (HD) and Amyotrophic Lateral Sclerosis (ALS). In recent years, it has been found that mitochondrial remodeling plays an important role in the onset and progression of neurodegenerative diseases. Mitochondrial remodeling refers to the dynamic regulatory process of mitochondrial morphology, number and function, which can affect neuronal cell function and survival by regulating mechanisms such as mitochondrial fusion, division, clearance and biosynthesis.

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Background: Patients are increasingly turning to the internet, and recently artificial intelligence engines (e.g., ChatGPT), for answers to common medical questions.

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Diagnostic Accuracy of Imperforate Hymen at a Single Referral Center.

J Pediatr Adolesc Gynecol

January 2025

Division of Pediatric and Adolescent Gynecology, Department of Obstetrics & Gynecology, Baylor College of Medicine, Houston, Texas.

Study Objective: Imperforate hymen (IH) is a rare congenital anomaly that results in vaginal outlet obstruction. IH can cause significant morbidity if not managed appropriately, which depends on accurate identification of the condition. However, data on the accuracy of IH diagnosis is limited.

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Evodiamine rescues lipopolysaccharide-induced cognitive impairment via C/EBP-β-COX2 axis-regulated neuroinflammation.

Int J Biol Macromol

January 2025

College of Chemistry and Life Science, Beijing University of Technology, Beijing 100124, China; Beijing Institute of Radiation Medicine, Beijing 100850, China; School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China. Electronic address:

Neuroinflammation is a key driver of neurological disorders. Evodiamine (EVO), an alkaloid from the traditional Chinese herb Evodia rutaecarpa, possesses potent biological activities, notably anticancer and anti-inflammatory effects. This study investigates EVO's potential to attenuate LPS-induced neuroinflammation, focusing on identifying its therapeutic targets and mechanisms of action.

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Association between dietary intake estimated levels of PCDD/Fs and human sperm quality.

Reprod Toxicol

January 2025

Institut d'Investigació Sanitària Pere Virgili (IISPV), Reus, Spain; Universitat Rovira i Virgili, Departament de Bioquímica i Biotecnologia, Alimentaciò, Nutrició, Desenvolupament i Salut Mental ANUT-DSM, Reus, Spain; Centro de Investigación Biomédica en Red Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Institute of Health Carlos III, Madrid, Spain.

This study aimed to investigate the association between estimated dietary intake of polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) and human sperm quality. This study cross-sectionally assessed the associations between estimated dietary intake of PCDD/Fs and sperm quality parameters in 200 participants aged 18-40 years from the Led-Fertyl study. Linear regression models, accounting for potential confounding variables, were employed to evaluate the relationships.

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Conformational switches in human RNA binding proteins involved in neurodegeneration.

Biochim Biophys Acta Gen Subj

January 2025

Computational Structural Biology Laboratory, Department of Bioscience and Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India; Bioinformatics Centre, Department of Bioscience and Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302, India. Electronic address:

Conformational switching in RNA binding proteins (RBPs) are crucial for regulation of RNA processing and transport. Dysregulation or mutations in RBPs and broad RNA processing abnormalities are related to many human diseases including neurodegenerative disorders. Here, we review the role of protein-RNA conformational switches in RBP-RNA complexes.

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Focused Ultrasound Neuromodulation: Exploring a Novel Treatment for Severe Opioid Use Disorder.

Biol Psychiatry

January 2025

Department of Neuroscience, Rockefeller Neuroscience Institute, West Virginia University, Morgantown, WV, USA; Department of Behavioral Medicine and Psychiatry, Rockefeller Neuroscience Institute, West Virginia University, Morgantown, WV, USA. Electronic address:

Background: Opioid use disorder remains a critical healthcare challenge as current therapeutic strategies have limitations resulting in high recurrence and deaths. We evaluated safety and feasibility of focused ultrasound (FUS) neuromodulation to reduce substance cravings and use in severe opioid- and co-occurring substance use disorders.

Methods: This prospective, open-label, single-arm study enrolled 8 participants with severe, primary opioid use disorder with co-occurring substance use.

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Association between Congenital Zika Syndrome and hospitalizations during early childhood: a nationwide cohort study.

Int J Infect Dis

January 2025

Center for Data and Knowledge Integration for Health (CIDACS), Oswaldo Cruz Foundation, Salvador, Brazil; Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK.

Background Congenital Zika Syndrome (CZS) has been linked to a wide spectrum of abnormalities. However, differences in hospitalization patterns between children with and without CZS have not yet been investigated. Methods We compared rates of hospital admissions for all and specific diseases, proportions of admission causes, and total length of hospital stay (LOS) between children with CZS and those without the syndrome.

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Cryo-EM structure and complementary drug efflux activity of the Acinetobacter baumannii multidrug efflux pump AdeG.

Structure

December 2024

Center for Microbiome Research of Med-X Institute, Department of Critical Care Medicine, Shaanxi Provincial Key Laboratory of Sepsis in Critical Care Medicine, The First Affiliated Hospital, Xi'an Jiaotong University, Xi'an 710061, China; The Key Laboratory of Environment and Genes Related to Disease of Ministry of Education Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China. Electronic address:

Multidrug-resistant Acinetobacter baumannii has emerged as one of the most antibiotic-resistant bacterial pathogens associated with nosocomial infection, with its resistance highly depending on multiple multidrug efflux pumps. Here, we report the cryoelectron microscopy (cryo-EM) structure of Acinetobacter drug efflux G (AdeG), the inner membrane component of one of three important resistance-nodulation-cell division (RND) pump family members in A. baumannii, which is involved in drug resistance to chloramphenicol, trimethoprim, ciprofloxacin, and clindamycin.

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Peak Weight Acceptance, Mid Stance Trough, and Peak Push-Off Force Symmetry Are Decreased in Older Adults Compared With Young Adults.

J Appl Biomech

January 2025

Department of Biomedical Engineering and Mechanics, Virginia Tech, Blacksburg, VA, USA.

Gait abnormalities affect an individual's ability to navigate the world independently and occur in 10% of older adults. Examining age-related gait symmetry in nonlaboratory environments is necessary for understanding mobility limitations in older adults. This study examined gait symmetry differences between older and younger adults using in-shoe force sensors.

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Background: There are no studies examining the prospective joint association of device-based measures of sedentary time and physical activity (PA) with cancer mortality. We examined the joint associations of sedentary time and intensity-specific PA with cancer mortality in 72,458 adults from UK Biobank.

Methods: Participants wore an Axivity AX3 accelerometer on their dominant wrist for at least 3 days (with at least 1 weekend day).

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Tertiary lymphoid structures and cancer immunotherapy: From bench to bedside.

Med

January 2025

Department of Medicine, Institut Bergonié, Bordeaux, France; Faculty of Medicine, University of Bordeaux, Bordeaux, France. Electronic address:

Tertiary lymphoid structures (TLSs) are organized ectopic lymphoid aggregates within the tumor microenvironment that serve as crucial sites for the development of adaptive antitumor cellular and humoral immunity. TLSs have been consistently documented in numerous cancer types, correlating with improved prognosis and enhanced responses to immunotherapy, especially immune-checkpoint blockade (ICB). Given the potential role of TLSs as predictive biomarkers for the efficacy of ICB in cancer patients, the therapeutic manipulation of TLSs is gaining significant attention as a promising avenue for cancer treatment.

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Ubiquitination-deficit of Cnot4 impairs the capacity of proliferation and differentiation in mouse embryonic stem cells.

Biochem Biophys Res Commun

December 2024

Department of Histology and Embryology, School of Basic Medical Sciences, Harbin Medical University, Harbin, 150081, China. Electronic address:

Article Synopsis
  • Neurodevelopmental abnormalities contribute to various neurological disorders, with ubiquitination being crucial for embryonic development and neurodevelopment.
  • Cnot4, an E3-ubiquitin ligase, was studied for its role in mouse embryonic stem cells (ESCs) where its ubiquitination-deficit led to decreased proliferation and increased ectodermal differentiation.
  • RNA sequencing revealed that genes linked to glucose metabolism and calcium signaling were affected, indicating Cnot4's significant role in regulating ESC behavior through ubiquitination.
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A new hereditary PROS1 gene mutation caused isolated cortical venous thrombosis.

Thromb Res

January 2025

Department of Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, Fujian, China. Electronic address:

Background: Protein S deficiency is a rare inherited disease. We report the case of a young man who unexpectedly developed isolated cortical vein thrombosis (ICoVT) associated with a novel PROS1 mutation.

Methods: Clinical symptoms were recorded, and physical examinations conducted.

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Aim: Cemiplimab has demonstrated significantly longer survival than physician's choice of chemotherapy in patients with recurrent cervical cancer after first-line platinum-containing chemotherapy. We report the final survival analysis from the phase III randomized study (EMPOWER-Cervical 1/GOG-3016/ENGOT-cx9).

Methods: Cemiplimab (n = 304) or chemotherapy (n = 304) were administered every 3 weeks.

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Absorption spectra of PS in the ultraviolet and infrared region.

Spectrochim Acta A Mol Biomol Spectrosc

January 2025

Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012 China. Electronic address:

The line list is essential for accurately modeling various astrophysical phenomena, such as stellar photospheres and atmospheres of extrasolar planets. This paper introduces a new line database for the PS molecule spanning from the ultraviolet to the infrared regions, covering wavenumbers up to 45000 cm and containing over ten million transitions between 150,458 states with total angular momentum J < 160. Accurate line intensities for rotational, vibrational and electronic transitions are generated by using the general purpose variational code DUO.

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Steak samples were collected from the longissimus lumborum muscles of beef carcasses (Canada AA, n = 1505; Canada AAA, n = 1363) over a 3-year period. Steaks were aged for 14 d, and tenderness was determined by slice shear force (SSF). Metabolomic profiling of beef samples was performed using rapid evaporative ionization mass spectrometry (REIMS) (N = 2853).

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Background: Recurrent pregnancy loss (RPL) remains a complex and challenging reproductive issue often associated with immunological abnormalities. This study investigates the immunomodulatory effects of intradermal lymphocyte therapy in RPL patients, exploring cellular, molecular, and cytokine changes, with specific attention to individuals with positive anti-thyroid peroxidase antibodies (Anti-TPO).

Methods: The study included 105 patients with RPL, divided into Anti-TPO positive RPL patients (n = 25), Anti-TPO negative RPL patients (n = 38), and RPL patients without lymphocyte immunotherapy (LIT) (n = 42).

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