By the use of HPLC technique after treatment with beta-lactamases, two novel cephamycins, SF-1623 and SF-1623B, were discovered and isolated from the fermentation broth of Streptomyces chartreusis SF-1623. The structures of SF-1623 and SF-1623B were determined to contain 3-sulfothiomethyl and 3-hydroxymethyl groups respectively, by chemical and enzymatic transformation reactions. Studies on the...

A UHPLC-(ESI+)-MS/MS method was developed and validated for the simultaneous determination of glucoraphanin (GR), sulforaphane (SF), sulforaphane-glutathione (SF-GSH), sulforaphane-cysteine (SF-CYS), sulforaphane-N-acetyl-cysteine (SF-NAC), in a range biological materials (digesta, cell culture medium, lysates, urine) with no sample pretreatment. The limit detection (LODs) ranged from 0.03 to 1...

BACKGROUND The accuracy of synovial fluid (SF) white cell count (WCC) and polymorphonuclear (PMN) cell evaluation for predicting prosthetic joint infection (PJI) at the total hip arthroplasty (THA) or total knee arthroplasty (TKA) site is unknown. Therefore, we performed a meta-analysis to summarize the diagnostic validity of SF-WCC and SF-PMN for diagnosing PJI. METHODS The MEDLINE, EMBASE, ...

A. Overview of steroidogenesis B. SF-1 and the regulation of steroidogenesis C. Cloning and structural characterization of SF-1 1. Structural features of SF-1 2. Multiple transcripts are encoded by the gene encoding SF-1 3. The gene encoding SF-1 is evolutionarily conserved in vertebrates and invertebrates III. Characterization of Sites of SF-1 Expression and Identification of Its Target Genes ...