The Fungal CYP51s: Their Functions, Structures, Related Drug Resistance, and Inhibitors
Conclusion and Perspectives CYP51 plays a crucial role in fungal invasive growth, hyphae formation and virulence, and inhibitors targeting CYP51 have always been an important component of antifungal agents. Further researches on fungal CYP51s might set about from the following aspects: First, while the detailed crystal structures of several susceptible pathogenic fungi CYP51 have been elaborated, those of drug-resistant variants are still in hypothesis. If those structures were elucidated, targeting at common drug-resistant CYP51 protein variants could probably be promising. Second, it deserves more in-depth researches to find out why some kind of amino acid point mutations (such as G54W in A. fumigatus CYP51A) could have varied effects on resistance for different azoles. Such researches may provide important ideas to minimize drug resistance. Third, the study of model organisms may also bring some inspiration. Such as Set4, which targets to ergosterol gene promoters with a Hap1-dependent manner under hypoxic conditions in S. cerevisiae, could downregulates the expression of CYP51. Whether homologous proteins and similar mechanisms exist in pathogenic fungi requires further researches. As long as they exist, new remedies may be put forward to activate Set4 to inhibit azole-induced CYP51 overexpression. Forth, it might be achievable to target other proteins as well as CYP51 simultaneously to maximize the therapeutic effect. There already exists some preliminary works focusing...
CONCLUSION: Prevalence of antibiotic use was high not only versus other hospitals in the region but globally including Africa, coupled with significant evidence of sub-optimal prescribing. Swift action is needed to improve future prescribing to reduce AMR. One or two areas should initially be targeted for quality improvement including development of local guidelines, documentation of antibiotic indications and/or stop/review dates. PMID: 33034234 [PubMed - as supplied by publisher]
Authors: Reissier S, Cattoir V Abstract INTRODUCTION: Streptogramins (pristinamycin and quinupristin-dalfopristin) can be interesting options for the treatment of infections due to Gram-positive cocci, especially multidrug-resistant isolates. AREAS COVERED: This review provides an updated overview on structural and activity characteristics, mechanisms of action and resistance, pharmacokinetic/pharmacodynamic and clinical use of streptogramins. EXPERT OPINION: The streptogramin antibiotics act by inhibition of the bacterial protein synthesis. They are composed of two chemically distinct compounds, namely typ...
Publication date: 15 February 2021Source: Journal of Hazardous Materials, Volume 404, Part AAuthor(s): Cheng Han, Yinping Zhang, Marc Redmile-Gordon, Huan Deng, Zhenggui Gu, Qiguo Zhao, Fang Wang
Publication date: 15 February 2021Source: Journal of Hazardous Materials, Volume 404, Part AAuthor(s): Peter A. Bain, Adrienne Gregg, Alok K. Pandey, Mohana Krishna Reddy Mudiam, Peta A. Neale, Anu Kumar
Publication date: 15 February 2021Source: Journal of Hazardous Materials, Volume 404, Part AAuthor(s): Jinquan Chen, Xuan Li, Wei Jia, Shili Shen, Shengjiong Deng, Bohua Ji, Junjun Chang
Publication date: 15 February 2021Source: Journal of Hazardous Materials, Volume 404, Part AAuthor(s): Zhongyi Zhang, Wen-Xiong Wang, Nengjian Zheng, Yansheng Cao, Hongwei Xiao, Renguo Zhu, Hui Guan, Huayun Xiao
Publication date: Available online 9 October 2020Source: Journal of Hazardous MaterialsAuthor(s): Xiang Chen, Yihan Dai, Jin Fan, Xiaoyun Xu, Xinde Cao
Publication date: Available online 30 September 2020Source: Journal of Hazardous MaterialsAuthor(s): Anthony Beauvois, Delphine Vantelon, Jacques Jestin, Martine Bouhnik-Le Coz, Charlotte Catrouillet, Valérie Briois, Thomas Bizien, Mélanie Davranche
Authors: Zhang W, Xu JZ, Lu XH, Li H, Wang D, Wang JG Abstract PURPOSE: We hypothesise that dietary sodium intake interacts with serum uric acid to influence blood pressure (BP) in children and adolescents. In the present study, we investigated ambulatory BP in relation to hyperuricaemia, dietary sodium intake and their interaction in children and adolescents with hypertension. MATERIALS AND METHODS: A total of 616 study participants were 10-24 years old and had primary hypertension diagnosed after admission in a specialised inpatient ward. Ambulatory BP monitoring was performed during hospitalisat...
Conclusion: These findings suggest that consumption of peanuts high in oleic acid (D7) may have the potential to delay primary fatty liver symptoms. PMID: 33033472 [PubMed]
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