PMID: 44604Oct 1, 1979

Production of hyaluronidase by propionibacteria from different origins

Zentralblatt Für Bakteriologie, Parasitenkunde, Infektionskrankheiten Und Hygiene. Erste Abteilung Originale. Reihe A: Medizinische Mikrobiologie Und Parasitologie
U Höffler


114 strains of anaerobic and microaerophilic coryneform bacteria from different origins were investigated for production of free extracellular hyaluronidase (hyaluronate glycanohydrolase, EC A quantitative technique was applied measuring the release of N-acetyl-glucosamine groups from purified human potassium hyaluronate. The strains belonged to the following species: Propionibacterium acnes, P. avidum, P. granulosum, P. lymphophilum, the formerly so-called Corynebacterium parvum, P. freudenreichii subsp. freudenreichii and shermanii, P. thoenii, P. acidi-propionici, C. minutissimum, and Arachnia propionica. All together, 59 out of 114 (approximately 51.8%) tested strains showed clearly measurable hyaluronidase activities. P. acnes, the propionibacterium species most frequently found in acne vulgaris lesions, proved to be the most active species tested, 44 out of 64 (approximately 68.8%) P. acnes strains being positive. 5 strains producing hyaluronate glycanohydrolase activities of more than 60 mU/ml in thioglycollate broth cultures could be detected. P. avidum and P. granulosum strains were positive in only 45.0% and 33.3%, respectively, and their mean hyaluronidase activities were significantly lower. Differences i...Continue Reading

Related Concepts

Acne Vulgaris
Coryneform Group
Bacterial Infections
Propionibacterium acnes

Trending Feeds


Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Synapse Loss as Therapeutic Target in MS

As we age, the number of synapses present in the human brain starts to decline, but in neurodegenerative diseases this occurs at an accelerated rate. In MS, it has been shown that there is a reduction in synaptic density, which presents a potential target for treatment. Here is the latest research on synapse loss as a therapeutic target in MS.

Artificial Intelligence in Cardiac Imaging

Artificial intelligence (ai) techniques are increasingly applied to cardiovascular (cv) medicine in cardiac imaging analysis. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

Social Learning

Social learning involves learning new behaviors through observation, imitation and modeling. Follow this feed to stay up to date on the latest research.

Cell Atlas of the Human Eye

Constructing a cell atlas of the human eye will require transcriptomic and histologic analysis over the lifespan. This understanding will aid in the study of development and disease. Find the latest research pertaining to the Cell Atlas of the Human Eye here.

Single Cell Chromatin Profiling

Techniques like ATAC-seq and CUT&Tag have the potential to allow single cell profiling of chromatin accessibility, histones, and TFs. This will provide novel insight into cellular heterogeneity and cell states. Discover the latest research on single cell chromatin profiling here.

Genetic Screens in iPSC-derived Brain Cells

Genetic screening is a critical tool that can be employed to define and understand gene function and interaction. This feed focuses on genetic screens conducted using induced pluripotent stem cell (iPSC)-derived brain cells.