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多重耐药性:其发病机制与治疗方法的研究

Multidrug resistant : A study on its pathogenesis and therapeutics.

作者信息

Mukhopadhyay Hridesh, Bairagi Arnab, Mukherjee Anushka, Prasad Aman Kumar, Roy Arjama Dhar, Nayak Aditi

机构信息

Department of Microbiology, Ramakrishna Mission Vivekananda Centenary College, Rahara, Khardaha, West Bengal 700118, India.

Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala 695014, India.

出版信息

Curr Res Microb Sci. 2024 Dec 6;8:100331. doi: 10.1016/j.crmicr.2024.100331. eCollection 2025.

Abstract

The overuse of antibiotics has led to the global dissemination of , an increasingly challenging nosocomial pathogen. This review explores the medical significance along with the diverse resistance ability of . Intensive care units (ICUs) serve as a breeding ground for , as these settings harbour vulnerable patients and facilitate the spread of opportunistic microorganisms. belongs to the ESKAPE group of bacterial pathogens that are major contributors to antibiotic-resistant infections. The pathogenic nature of is particularly evident in seriously ill patients, causing pneumonia, wound infections, and other healthcare-associated infections. Historically considered benign, is a global threat due to its propensity for rapid acquisition of multidrug resistance phenotypes. The genus was formally recognized in 1968 following a comprehensive survey by Baumann ., highlighting the relationship between previously identified species and consolidating them under the name is characterized by its Gram-negative nature, dependence on oxygen, positive catalase activity, lack of oxidase activity, inability to ferment sugars, and non-motility. The DNA G+C content of species falls within a specific range. For diagnostic purposes, can be cultured on specific agar media, producing distinct colonies. The genus comprises numerous species those are associated with bloodstream infections with high mortality rates. Therefore, poses a significant challenge to global healthcare due to its multidrug resistance and ability to cause various infections. A comprehensive understanding of the mechanisms underlying its resistance acquisition and pathogenicity is essential for combating this healthcare-associated pathogen effectively.

摘要

抗生素的过度使用导致了一种日益具有挑战性的医院病原体在全球范围内传播。本综述探讨了该病原体的医学意义及其多样的耐药能力。重症监护病房(ICU)是该病原体的滋生地,因为这些环境中有易感染的患者,且便于机会性微生物的传播。该病原体属于ESKAPE组细菌病原体,是抗生素耐药性感染的主要成因。该病原体的致病性在重症患者中尤为明显,可导致肺炎、伤口感染及其他医疗相关感染。该病原体历史上被认为是无害的,但由于其易于迅速获得多重耐药表型,现已成为全球威胁。在鲍曼进行全面调查后,该菌属于的属在1968年被正式确认。强调先前确定的物种之间的关系,并将它们合并在该属名下,其特点是革兰氏阴性、需氧、过氧化氢酶活性阳性、氧化酶活性缺乏、不能发酵糖类且无运动性。该属物种的DNA G+C含量在特定范围内。出于诊断目的,该病原体可在特定的琼脂培养基上培养,产生明显的菌落。该属包括许多与高死亡率的血流感染相关的物种。因此,该病原体因其多重耐药性和引发各种感染的能力,对全球医疗保健构成了重大挑战。全面了解其耐药性获得和致病性的潜在机制对于有效对抗这种医疗相关病原体至关重要。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/e13f/11718326/e4ac809b4f2e/ga1.jpg

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