The manuscript describes the highly regioselective 6- iodo/bromo cyclization of functionalized -propagyl-amino-pyrimidinones under ambient conditions. The cyclization afforded functionalized pteridines in excellent yields. The optimized procedures are mild, operationally simple and working successfully with different substrates. The synthesis of functionalized pteridines is of great significance because of their potential pharmacological profile.
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http://dx.doi.org/10.1039/d3ra05651a | DOI Listing |
Sci Adv
January 2025
Department of Cardiac Surgery, Peking University Third Hospital, Beijing 100191, China.
Following myocardial infarction (MI), the accumulation of CD86-positive macrophages in the ischemic injury zone leads to secondary myocardial damage. Precise pharmacological intervention targeting this process remains challenging. This study engineered a nanotherapeutic delivery system with CD86-positive macrophage-specific targeting and ultrasound-responsive release capabilities.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Department of Neurosurgery, Clinical Neuroscience Research Center, Tulane University School of Medicine, New Orleans, LA, USA.
Background: Increasing evidence suggests that SARS-CoV-2 infection may lead to early onset and aggravation of pre-existing vascular dementia and Alzheimer's disease. Methylene tetrahydrofolate reductase (Mthfr) is a critical enzyme in folate metabolism, also required for optimal brain function. Mthfr deficient mice display cognitive impairments and neurovascular deficits and polymorphisms in MTHFR increases dementia risk.
View Article and Find Full Text PDFFundam Clin Pharmacol
February 2025
CHU Saint-Étienne, Service de Rhumatologie, Mines Saint-Etienne, INSERM, SAINBIOSE U1059, Université Jean Monnet Saint-Étienne, Saint-Etienne, France.
Background: Methotrexate (MTX) is the first-line treatment for Rheumatoid Arthritis (RA), yet 30%-50% of RA patients develop resistance to MTX, which can manifest several years after treatment initiation.
Objective: This study investigates the relationship between erythrocyte methotrexate polyglutamates (MTX-PGs) subtype concentrations and clinical disease activity in RA patients undergoing long-term MTX treatment.
Methods: In this cross-sectional study, patients on a stable dose of subcutaneous MTX for several years were included.
Acta Oncol
January 2025
Institute of Clinical Medicine, UIT- The Arctic University, Tromsø, Norway; Department of Urology, University Hospital of North Norway, Tromsø, Norway.
Background And Purpose: Recommended treatment of urothelial muscle-invasive bladder cancer (MIBC) is cisplatin-based neoadjuvant chemotherapy (NAC) followed by cystectomy, but there are challenges with low utilization of NAC. We aimed to evaluate the utilization of NAC, perioperative complications and oncological efficacy in a real-world setting.
Patients And Methods: All patients operated with radical cystectomy at the University Hospital of North Norway during 2011-2021 for MIBC were included.
BMC Psychiatry
January 2025
Department of Rehabilitation Medicine, The First Hospital of Hebei Medical University, Shijiazhuang, Hebei, China.
Background: This study investigated the effects of phototherapy on serum BH4 levels, evoked potentials, and cognitive impairment in post-stroke depression patients.
Methods: We conducted a prospective study with 160 post-stroke depression patients, randomly assigned to an experimental group receiving daily 40 min of phototherapy alongside routine treatment, and a control group receiving only routine treatment. Serum tetrahydrobiopterin (BH4) levels were measured via ELISA.
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