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Diagnostic cholangioscopy for surgical planning of extrahepatic cholangiocarcinoma.
Sci Rep
January 2025
Digestive Disease Center, CHA Bundang Medical Center, CHA University School of Medicine, 59 Yatap-ro, Seongnam-si, 13496, Gyeonggi-do, Republic of Korea.
The recent clinical outcomes of multi-regimen chemotherapy included prolonged survival and a high rate of conversion to surgery in Asian patients with advanced biliary tract cancer. The ability of single-operator cholangioscopy (SOC) to detect and stage extrahepatic cholangiocarcinoma (CCC) in intraductal lesions is becoming more important in determining the extent of surgery. The aim of this study was to evaluate the role of SOC in surgical planning for extrahepatic CCC.
View Article and Find Full Text PDFBicyclic nucleoside analogues: synthesis of thiazolopyrimidine-based nucleosides a copper-catalysed tandem reaction of 5-iodocytidine with isothiocyanates.
Org Biomol Chem
January 2025
Chemical Sciences and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (CSIR-NIIST), Thiruvananthapuram 695019, India.
We have devised a copper-catalysed tandem annulation reaction to generate a new class of bicyclic nucleoside analogues (BCNAs), namely, amino-substituted thiazolopyrimidine ribonucleosides. The reaction between triacetyl-5-iodo-cytidine and an appropriate organic isothiocyanate in the presence of a Cu salt and ligand resulted in the formation of an amino-substituted thiazolopyrimidine moiety. This reaction was found to be compatible with a range of aliphatic and aromatic isothiocyanates, affording the corresponding products in moderate to good yields.
View Article and Find Full Text PDFSelection of initiator tRNA and start codon by mammalian mitochondrial initiation factor 3 in leaderless mRNA translation.
Nucleic Acids Res
January 2025
Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa-shi, Chiba 277-8562, Japan.
Article Synopsis
- The mammalian mitochondrial protein synthesis system is responsible for synthesizing 13 crucial subunits for energy production, but the exact role of IF-3mt in translation initiation is still unclear.
- Researchers created a mitochondrial translation system to explore IF-3mt's proofreading abilities, revealing it helps distinguish between different start codons for more accurate protein synthesis.
- The findings indicate that IF-3mt not only supports initiation from standard AUG start codons but can also facilitate initiation from non-AUG codons like AUA, highlighting its adaptability in working with leaderless mRNAs.
[Can Coronavirus HCoV-229E be Used as a Model Virus Instead of SARS-CoV-2 in Antiviral Efficacy Studies?].
Mikrobiyol Bul
January 2025
Kocaeli Üniversitesi Tıp Fakültesi, Tıbbi Mikrobiyoloji Anabilim Dalı, Kocaeli.
Son yıllarda pandemi nedeniyle virüslerin tanı ve tedavisine yönelik terapötik yöntemlerin geliştirilmesi ve antivirallerin test edilmesi amacıyla çok sayıda in vitro çalışma yapılmaktadır. Literatürde SARS-CoV-2'nin modellenebilmesi için HCoV-229E'nin kullanımının güvenli ve yeterli olup olmadığını inceleyen çalışmalar sınırlıdır. Bu sebeple bu çalışmada, BSL-2 şartlarında gerçekleştirilebilen HCoV-229E kültürü ve kantitasyon çalışmalarının, BSL-3 şartları gerektiren SARS-CoV-2 deneylerinde bir ön çalışma modeli olup olamayacağının antiviral etkinlik analizleri üzerinden araştırılması amaçlanmıştır.
View Article and Find Full Text PDFBehçet's disease: recurrent ischemic stroke as an initial presentation - a case based review.
J Int Med Res
January 2025
Rheumatology Department, Faculty of Medicine, Cairo University, Cairo, Egypt.
Behçet's disease (BD) is a rare systemic vasculitis that is characterized by recurrent oral and genital ulcers, uveitis, and skin lesions. Although neurological involvement is a known complication, ischemic stroke remains uncommon. Herein, we report a 37-year-old Kuwaiti woman who experienced recurrent ischemic stroke with no traditional risk factors.
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