Competent Haemophilus influenzae bacteria were exposed to purified phage HP1 DNA and then plated for transfectants (PFU). When 32% (final concentration) glycerol was added before plating, between 10- and 100-fold more transfectants were observed. Glycerol had no significant effect on transfection with DNA from single or tandem double lysogens. It also had little effect on transformation with chromosomal DNA or on transformation of defective HP1 lysogens with phage HP1 DNA. It was concluded that glycerol induced the release of adsorbed linear double-stranded DNA into the interior of the cells.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC214589 | PMC |
| http://dx.doi.org/10.1128/jb.166.1.285-289.1986 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Pyopneumothorax Caused by Aspergillus terreus and Haemophilus influenzae: A Case Report.
Cureus
December 2024
Pulmonology/Critical Care, University of Kansas School of Medicine, Wichita, USA.
Empyema, a type of pleural effusion characterized by pus accumulation in the pleural space, is most often caused by bacterial infections, typically as a complication of pneumonia. This case report presents a 70-year-old man with chronic obstructive pulmonary disease (COPD), rheumatoid arthritis, and chronic bilateral hydropneumothoraces, who developed pyopneumothorax due to dual infections with and . The patient presented with worsening dyspnea, hypoxemia, and respiratory acidosis, requiring hospitalization and chest tube thoracostomy.
View Article and Find Full Text PDFNTHi killing activity is reduced in COPD patients and is associated with a differential microbiome.
Respir Res
January 2025
Microbial Antibodies and Technologies, Research and Early Development, Vaccines and Immune Therapies, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, USA.
Chronic obstructive pulmonary disease (COPD) is a chronic lung disease characterized by airway obstruction and inflammation. Non-typeable Haemophilus influenzae (NTHi) lung infections are common in COPD, promoting frequent exacerbations and accelerated lung function decline. The relationship with immune responses and NTHi are poorly understood.
View Article and Find Full Text PDFComparing sputum, nasopharyngeal swabs, and combined samples for respiratory bacterial detection using multiplex PCR.
Microbiol Spectr
January 2025
Department of Laboratory Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, South Korea.
Unlabelled: Respiratory tract infections are major global health issues that require rapid and accurate diagnostic methods. Multiplex quantitative PCR (qPCR) is commonly used for pathogen detection in respiratory samples. However, the optimal specimen selection for detecting bacterial pathogens is not well-explored.
View Article and Find Full Text PDFModeling and simulation of distribution and drug resistance of major pathogens in patients with respiratory system infections.
BMC Infect Dis
January 2025
Department of Respiratory Medicine, Anting Hospital of Jiading District, 1060 Hejing Road, Anting Town, Jiading District, Shanghai, 201805, China.
Background: Respiratory tract infections (RTIs) are one of the leading causes of morbidity and mortality worldwide. The increase in antimicrobial resistance in respiratory pathogens poses a major challenge to the effective management of these infections.
Objective: To investigate the distribution of major pathogens of RTIs and their antimicrobial resistance patterns in a tertiary care hospital and to develop a mathematical model to explore the relationship between pathogen distribution and antimicrobial resistance.
Preferences of nurses in the United Kingdom for attributes of pediatric hexavalent vaccines: a discrete-choice experiment.
Expert Rev Pharmacoecon Outcomes Res
January 2025
Merck & Co. Inc, Rahway, NJ, USA.
Background: We evaluated UK nurses' preferences for pediatric hexavalent vaccine attributes.
Research Design And Methods: In a discrete-choice experiment study, 150 nurses chose between 2 hypothetical pediatric hexavalent vaccines with varying attribute levels (device type, plastic in packaging, time on the market, and time the vaccine can stay safely at room temperature) in a series of choice questions. Using random-parameters logit-model estimates, conditional relative attribute importance (CRAI) and odds ratios (ORs) were calculated.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!