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http://dx.doi.org/10.1053/j.gastro.2021.07.018 | DOI Listing |
infects the urogenital tract of men and women and causes the sexually transmitted infection trichomoniasis. Since the publication of its draft genome in 2007, the genome has drawn attention for several reasons, including its unusually large size, massive expansion of gene families, and high repeat content. The fragmented nature of the draft assembly made it challenging to obtain accurate metrics of features, such as spliceosomal introns.
View Article and Find Full Text PDFInt J Surg Case Rep
January 2025
Department of Immunology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Introduction: The presence of foreign or unexpected external objects in the urinary tract, including the urethra, is a rare case. This case is a challenge for patients with schizophrenia. This case report presents when the unusual corpus alienum invades the urethra in schizophrenia patients.
View Article and Find Full Text PDFJ Org Chem
January 2025
School of Medicine, Shanghai University, 99 Shangda Road, BaoShan District, Shanghai 200444, China.
Uncommon diterpenoids with diverse frameworks, including one unexpected iodinated oxa-6/6/6/6-tetracyclic diterpene () and its monobrominated 6/6/6-tricyclic analogue () and one novel isodolastane-type diterpene featuring an unusual aromatic 5/7/6-tricyclic ring system () as well as a related known dolastane-type diterpenoid (), were isolated from the South China Sea sponge . Their structures, including absolute configurations, were established by extensive spectroscopic data analysis, X-ray diffraction analysis, and quantum mechanical-nuclear magnetic resonance and time-dependent density functional theory/electronic circular dichroism calculations. A plausible biosynthetic pathway of new compounds - was proposed.
View Article and Find Full Text PDFJ Am Chem Soc
January 2025
Department of Chemistry and Biochemistry, University of California Santa Barbara, Santa Barbara, California 93106, United States.
Visible light-driven pyridoxal radical biocatalysis has emerged as a new strategy for the stereoselective synthesis of valuable noncanonical amino acids in a protecting-group-free fashion. In our previously developed dehydroxylative C-C coupling using engineered PLP-dependent tryptophan synthases, an enzyme-controlled unusual α-stereochemistry reversal and pH-controlled enantiopreference were observed. Herein, through high-throughput photobiocatalysis, we evolved a set of stereochemically complementary PLP radical enzymes, allowing the synthesis of both l- and d-amino acids with enhanced enantiocontrol across a broad pH window.
View Article and Find Full Text PDFMonaldi Arch Chest Dis
January 2025
Local Health Unit of São João, Porto.
This case presents a curious diagnosis in a young male presenting with chest pain. The first imaging tests suggested the presence of a hypovascular left atrial tumor. After cardiac magnetic resonance and the exclusion of extra-cardiac lesions, sarcoma emerged as the main diagnostic hypothesis.
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