Related Experiment Video
Updated: Aug 15, 2026

09:01
Phage-Mediated Genetic Manipulation of the Lyme Disease Spirochete Borrelia burgdorferi
Published on: September 28, 2022
Moxalactam therapy for gram-negative bacillary meningitis
Reviews of Infectious Diseases
|November 1, 1982
Summary
Moxalactam effectively treated gram-negative bacillary meningitis caused by enteric bacilli in twenty patients. However, it is not recommended for meningitis caused by Pseudomonas aeruginosa or Acinetobacter.
Area of Science:
- Infectious Diseases
- Neuroscience
- Pharmacology
Background:
- Gram-negative bacillary meningitis is a serious infection.
- Moxalactam is a newer beta-lactam antibiotic with activity against gram-negative bacteria.
Purpose of the Study:
- To evaluate the efficacy and safety of moxalactam in treating gram-negative bacillary meningitis.
Main Methods:
- Twenty patients with gram-negative bacillary meningitis were treated with intravenous moxalactam.
- Clinical and microbiological outcomes were assessed.
- Cerebrospinal fluid drug concentrations were measured.
Main Results:
- Seventeen patients showed good clinical and microbiological responses.
- Most bacterial isolates were susceptible to moxalactam.
- Adequate cerebrospinal fluid concentrations were achieved.
Conclusions:
- Moxalactam is effective as a single-agent therapy for meningitis caused by susceptible enteric gram-negative bacilli.
- Moxalactam is not recommended for meningitis caused by Pseudomonas aeruginosa or Acinetobacter.
Related Concept Videos
Acute Pyelonephritis II: Diagnostic Studies and Management
Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
Bacterial Meningitis
Bacterial meningitis is a severe infectious disease involving inflammation of the meninges, the protective membranes surrounding the brain and spinal cord. It occurs when pathogenic bacteria cross the blood–brain barrier and enter the cerebrospinal fluid. Common causative organisms include Neisseria meningitidis, Streptococcus pneumoniae, Haemophilus influenzae type b, Listeria monocytogenes, and Escherichia coli K1. The exact route of entry varies by pathogen and host condition.Routes of Entry...
Mechanism of Antibiotic Resistance in MRSA
Antibiotic resistance in bacteria arises when microorganisms evolve the ability to withstand drugs designed to kill them or inhibit their growth, rendering once-effective treatments useless. This phenomenon, driven by genetic change and selection under antibiotic exposure, poses a profound threat to modern medicine. Mechanisms include drug-inactivating enzymes (e.g., β-lactamases), efflux pumps that eject antibiotics, mutations altering antibiotic targets, decreased drug uptake, and acquisition...
Inhibitors of Gram-positive Cell Wall Synthesis
Bacterial cell walls are typically rigid structures composed mainly of peptidoglycan, a mesh-like polymer that provides mechanical strength and maintains cell shape. The synthesis of peptidoglycan is a crucial process in bacterial growth and serves as a primary target for many antibiotics.Mechanism of Action of Beta-Lactam AntibioticsBeta-lactam antibiotics, such as penicillin, inhibit peptidoglycan synthesis in actively growing cells. These antibiotics share a characteristic four-membered...
Bacterial Meningitis I: Introduction
Bacterial meningitis is a severe, life-threatening inflammation of the meninges, particularly the pia mater and arachnoid mater, affecting the subarachnoid space, ventricles, and cerebrospinal fluid (CSF). If untreated, it can lead to significant neurological complications or death.Causative AgentsCommon pathogens vary with age and immune status. In adults, major organisms include Streptococcus pneumoniae, Neisseria meningitidis, and Haemophilus influenzae. Streptococcus agalactiae (group B...
Bacterial Meningitis II: Pathophysiology
Bacterial meningitis typically begins when pathogens such as Neisseria meningitidis and Streptococcus pneumoniae colonize the nasopharynx and invade the bloodstream. This process is facilitated by bacterial virulence factors, such as polysaccharide capsules, which resist phagocytosis and complement-mediated killing. Less commonly, bacteria reach the central nervous system via contiguous spread from infections like otitis media or sinusitis, through congenital or acquired dural defects, or...

