Results 1 to 10 of about 54,273 (155)
Sulbactam: A β–Lactam Compound with Neuroprotective Effects in Epilepsy [PDF]
Background: The pathophysiology of epilepsy is characterized by increased neuronal activity due to an excess of the excitatory neurotransmitter glutamate and a deficiency in the inhibitory neurotransmitter gamma–aminobutyric acid (GABA).
Fang-Chia Chang +8 more
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Combatting Pseudomonas aeruginosa with β-Lactam Antibiotics: A Revived Weapon? [PDF]
Pseudomonas aeruginosa is a significant threat to public health as an aggressive, opportunistic pathogen. The use of β-lactam antibiotics such as penicillins, cephalosporins, monobactams, and carbapenems remains a front-line treatment against P ...
Dylan W. Zhao, Christopher T. Lohans
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Unraveling the mechanisms behind the enhanced efficacy of β-lactam-based sideromycins [PDF]
Previous studies have explored combining β-lactams with siderophores to create Trojan horse molecules that can penetrate the outer membrane of Gram-negative bacteria via TonB-dependent transporter (TBDT).
Evelyne Lacasse +8 more
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β-lactam antibiotics are one of the most widely used and diverse classes of antimicrobial agents for treating both Gram-negative and Gram-positive bacterial infections.
Lekshmi Narendrakumar +4 more
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Giant linear plasmids of β-lactam antibiotic producing Streptomyces [PDF]
A survey of the total cellular DNA from five β-lactam antibiotic-producing Streptomyces spp. by pulsed field gel electrophoresis was conducted to investigate the presence of linear plasmids. Streptomyces clavuligerus NRRL 3585 contained two giant linear plasmids of 120 and 430 kb, in addition to the well-characterized 11.7 kb linear plasmid ...
Donald J. Netolitzky +3 more
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OBJECTIVE:. β-lactams are the cornerstone of empiric and targeted antibiotic therapy for critically ill patients. Recently, there have been calls to use β-lactam therapeutic drug monitoring (TDM) within 24–48 hours after the initiation of therapy in ...
Thomas J. Dilworth, PharmD +4 more
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A method to transform the β-lactam antibiotic producerStreptomyces wadayamensis [PDF]
We have developed a transformation system for Streptomyces wadayamensis, a cephamycin C producer. 1−5 × 109 protoplasts can be obtained when late logarithmic phase cultures of this microorganisms are incubated with 10 mg/ml of lysozyme. Polyethylene glycol-Ca2+-mediated transformation of these protoplasts yielded 106 transformants per μg of pIJ702 or ...
C. Acebal, V. Rubio, G. Márquez
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Spherical and rod shaped protoplasts from β-lactam antibiotic treated cultures of Bacillus subtilis [PDF]
Addition of β-lactams to exponentially growing cultures of an autolytically deficient Bacillus subtilis metc3 lyt-2 strain FJ6 caused increase in optical density to stop after 1 h when it had about doubled, and thereafter to remain constant for at least 6 h.
G. Wright, H.J. Rogers
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Initiation of murein biosynthesis inEscherichia colicells treated with β-lactam antibiotics [PDF]
The study of the synthesis and accumulation of murein in cells initiating growth in the presence of β-lactam antibiotics indicated: (i) Murein rearrangement contributes substantially to cell enlargement during the first doubling in cell mass; (ii) Penicillin-binding protein 2 has the potential capability to synthesize most, if not all, the new murein ...
Antonio G. Pisabarro +3 more
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The state and consideration for skin test of β-lactam antibiotics in pediatrics
β-lactam antibiotics are the most frequently used drugs and the most common drugs that cause allergic reactions in pediatrics. The occurrence of some allergic reactions can be predicted by skin testing, especially severe adverse reactions such as ...
Chunhui Gao +3 more
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