Propionibacterium

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Propionibacterium

 

a nonspore-forming, gram-positive, and nonmotile rod that measures 0.5–0.8 × 1.0–1.5 μ. In young cultures, the rods are twisted and slightly branched, while in older cultures they are coccoid.

Propionibacteria form yellow, orange, or red colonies and grow under both aerobic and anaerobic conditions. They are nonpathogenic and live in dairy products (except milk) and in the rumen and intestine of ruminants. Propionibacteria are the causative agents of propionic-acid fermentation. They ferment glucose, lactose, and other carbohydrates; they also ferment some alcohols, forming propionic and acetic acids and CO2 as a result. Enzymes that contain propionibacteria are used in cheese-making: the openings and the flavor and aroma of Swiss cheese are largely determined by propionic-acid fermentation. Propionibacteria are used in the microbiological synthesis of vitamin B12. Various nutrient media that contain cobalt are used to grow propionibacteria.

A. A. IMSHENETSKII

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It has been proposed that the hypopigmentation is caused by decreased melanin production and altered melanosome dispersal in reaction to Propionibacterium acnes.
A growing group of evidence stated that the presence of the obligated anaerobic Gram positive bacterium Propionibacterium acnes (P.
There was only one report of the cilia embedded in the lens which was complicated by a propionibacterium acnes lens abscess.
APPLE CIDER VINEGAR It might not taste great but studies have found that this type of vinegar - which contains acetic, citric, lactic and succinic acid - can kill the spot-causing bacteria known as propionibacterium acnes.
The pathogenesis is complex and multifactorial which includes abnormal sebum production, follicular hyperkeratinization, bacterial proliferation and inflammation.2-4 The treatment goals are directed to reduce activity of the sebaceous glands, normalize follicular proliferation, reduce bacterial colonization and control inflammation.5,6 Owing to the use of topical and systemic antibiotics for acne vulgaris, the incidence of antibiotic-resistant Propionibacterium acnes is increasing worldwide.
(1,3) It reduces sebaceous gland size, sebum secretion, comedone formation, and follicular colonization of Propionibacterium acnes. (6) However, the reported serious systemic side effects from isotretinoin usage such as liver damage, depression, behavioral change, suicidality, and teratogenicity have created an obstacle to its use as it has been recommended by many clinicians to restrict such treatment for those with severe recalcitrant acne.
They found that Christie-Atkins-Munch-Peterson (CAMP) factor -- a toxin secreted from the Propionibacterium acnes (P.
"The pathogenesis of acne is traditionally attributed to four pathogenic factors: hyperkeratinization, excess sebum production, colonization by Propionibacterium acnes, and inflammation.
Benzoyl peroxide has a bactericidal action against Propionibacterium acnes and an anti-inflammatory action, and it produces few resistant bacteria.
Group * Standard HOCl Species Aerobic and facultative bacteria Gram-positive Coagulase-negative staphylococci 1 2 Staphylococcus aureus 5 5 Streptococcus pneumoniae 1 1 Moraxella catarrhalis 1 1 Group G Streptococcus 1 1 Gram-negative Haemophilus influenzae 2 2 Klebsiella pneumoniae 4 4 Klebsiella oxytoca 1 Pseudomonas aeruginosa 8 6 Pseudomonas putida 1 1 Enterobacter aerogenes 1 1 Citrobacter koseri 3 2 Escherichia coli 1 1 Stenotrophomonas maltophilia 2 2 Total aerobic and facultative bacteria 32 29 Anaerobic bacteria Gram-positive Propionibacterium acnes 1 Peptostreptococcus micra 8 7 Peptostreptococcus anaerobius 2 2 Clostridium hastiforme 1 1 Gram-negative Fusobacterium nucleatum 3 3 Total anaerobic bacteria 15 13 Total bacterial isolates 47 42 Group * NS Alcohol Species No.
Abraham, "Propionibacterium acnes: a treatable cause of constrictive pericarditis," Case Reports in Medicine, vol.
Propionibacterium acnes, a member of normal flora of the skin and gastrointestinal tract, is occasionally identified from osteoarticular biopsy samples.