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The Electron Transport Chain

The Electron Transport Chain

The electron transport chain or oxidative phosphorylation is an exothermic process in which free energy released during electron transfer reactions is coupled to ATP synthesis. This process is a significant source of energy in aerobic cells, and therefore inhibitors of the electron transport chain can be detrimental to the cell's metabolic processes.
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q in...

Enzyme-Linked Immunosorbent Assay

Enzyme-Linked Immunosorbent Assay

In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen. Enzyme-substrate reaction allows the antigen to be visualized or quantified.

Antimicrobial Proteins

Antimicrobial Proteins

Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...

Oxygen Requirements and Growth Patterns

Oxygen Requirements and Growth Patterns

Microorganisms exhibit diverse oxygen requirements and growth patterns driven by their metabolic strategies and environmental adaptations. Oxygen, while essential for many organisms, can also be toxic under certain conditions, shaping how microorganisms grow and survive.Oxygen Requirements of MicroorganismsMicroorganisms are classified based on their ability to use or tolerate oxygen:● Obligate aerobes like Mycobacterium tuberculosis need oxygen for energy production, as it serves as the...

Inhibitors of Bacterial Protein Synthesis

Inhibitors of Bacterial Protein Synthesis

Aminoglycosides constitute a highly potent class of bactericidal antibiotics that exert their antimicrobial effects by targeting the bacterial ribosome, specifically disrupting protein synthesis. These polycationic molecules consist of amino-modified sugars linked via glycosidic bonds to an aminocyclitol core such as 2-deoxystreptamine or streptamine. Their strong positive charges facilitate tight binding to the negatively charged phosphate backbone of ribosomal RNA (rRNA), primarily at the 16S...

Inhibitors of Bacterial DNA Synthesis

Inhibitors of Bacterial DNA Synthesis

Bacterial pathogens depend on precise and efficient DNA replication to sustain infection. Two type II topoisomerases—DNA gyrase and topoisomerase IV—are critical to this process, as they resolve DNA supercoiling and unlink chromosomes during replication. Fluoroquinolones, synthetic derivatives of quinolones, exploit this mechanism by stabilizing the transient DNA–enzyme cleavage complex, preventing strand religation, and causing lethal double-strand breaks. These antibiotics are selectively...

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Updated: Jul 9, 2026

Electrochemotherapy of Tumours

Electrochemotherapy of Tumours

Published on: December 15, 2008

オクサゾリジノンの抗生物質

D J Diekema¹, R N Jones

¹Division of Infectious Diseases, Department of Internal Medicine, University of Iowa College of Medicine, Iowa City, Iowa 52242, USA. daniel-diekema@uiowa.edu

Lancet (London, England)

|December 19, 2001

まとめ

耐性グラム陽性病原体と戦うために新しい抗菌薬が必要である. オクサゾリジノンの1つであるラインゾリドは,MRSAやVRE.のような耐性細菌によって引き起こされる深刻な感染症の治療に有望であることが示されています.

科学分野:

微生物学微生物学とは
感染症感染症は感染症です.
薬理学薬理学とは

背景:

グラム陽性細菌感染症は,抗菌剤耐性が増加しているため,増大する脅威となっています.
新しい治療薬は,Staphylococcus aureus,Enterococcus spp.,およびStreptococcus pneumoniaeなどの病原体における耐性を克服するために不可欠です.

研究の目的:

耐性グラム陽性病原体に対する新しいオクサゾリジノン抗菌剤であるラインゾリドの有効性を評価する.
臨床適用のためのラインゾリドの薬理動力学および毒性学的プロフィールを評価する.

主な方法:

主要な耐性グラム陽性病原体に対するインビトロ感受性試験.
肺炎,皮膚/軟組織感染症,バンコマイシン耐性腸球菌感染症の臨床試験データ分析.
ラインゾリドの薬剤 Pharmacokinetic and safety assessments of linezolid. linezolid. linezolid. linezolid. linezolid. linezolid. linezolid. linezolid. linezolid. linezolid. linezolid. linezolid. linezolid. linezolid. linezolid.

主要な成果:

ラインゾリドは,メチシリン耐性黄金球菌 (MRSA),ヴァンコミシン耐性腸球菌 (VRE),ペニシリン耐性ストレプトコックス肺炎菌 (Streptococcus pneumoniae) に対してインビトロ細菌静止活性を示しています.

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Anaerobic Protein Purification and Kinetic Analysis via Oxygen Electrode for Studying DesB Dioxygenase Activity and Inhibition

Anaerobic Protein Purification and Kinetic Analysis via Oxygen Electrode for Studying DesB Dioxygenase Activity and Inhibition

Published on: October 3, 2018

Microbiological Rapid On-Site Evaluation for Pulmonary Infectious Diseases

Microbiological Rapid On-Site Evaluation for Pulmonary Infectious Diseases

Published on: March 1, 2024

関連する実験動画

Last Updated: Jul 9, 2026

Electrochemotherapy of Tumours

Electrochemotherapy of Tumours

Published on: December 15, 2008

Anaerobic Protein Purification and Kinetic Analysis via Oxygen Electrode for Studying DesB Dioxygenase Activity and Inhibition

Anaerobic Protein Purification and Kinetic Analysis via Oxygen Electrode for Studying DesB Dioxygenase Activity and Inhibition

Published on: October 3, 2018

Microbiological Rapid On-Site Evaluation for Pulmonary Infectious Diseases

Microbiological Rapid On-Site Evaluation for Pulmonary Infectious Diseases

Published on: March 1, 2024

肺炎,皮膚および軟組織感染症,VRE感染症の治療に臨床的有効性が実証されています.

経口でのほぼ完全な生物学的利用可能性と許容可能な毒性を持つ好ましい薬物動態プロファイル.

結論:

ラインゾリドは,多剤耐性グラム陽性細菌によって引き起こされる深刻な感染症の治療における重要な進歩を表しています.
これは,グリコペプチドやストレプトグラムリンなどの既存の治療法に有効な代替手段を提供します.
オクサゾリジノンによるさらなる改変により,効能が強化され,活動スペクトルが広くなる薬剤が生成される可能性があります.