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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demonstrated that Propionibacterium acnes can inhibit the growth of methicillin-resistant S.
Antibacterial activity: Damong maria possesses a broad spectrum of antimicrobial activity and notable activity against Streptococcus pyogenes and Propionibacterium acnes using the disk diffusion method.
Widespread use of antibiotics has raised concerns regarding resistance in Propionibacterium acnes and other host commensals.
RECENT WORK HAS highlighted distinct differences in the cutaneous microbiota of acne sufferers versus those who tend not to "break out," specifically, decreased bacterial diversity, increased Propionibacterium acnes and Staphylococcus aureus, and importantly, specific ribotypes of P.
The formation of microcomedone involves a complex interaction of altered follicular keratinization, hyperplasia of sebaceous follicles, and overcolonization of sebaceous follicles with Propionibacterium acnes.
In addition, the role of biofilm-forming bacteria, such as Propionibacterium acnes, but also Staphylococcus, and Streptococcus in the pathogenesis of orthopedic implant-associated infections, particularly PSI has been widely accepted.
In acne, said Adam Friedman, MD, "we've always been talking about bacteria," but now the thinking has shifted from just controlling Propionibacterium acnes to a subtler understanding of what's happening on the skin of individuals with acne.
Acne is caused by the bacterium, Propionibacterium acnes, and is one of the most commonly treated skin disorders, affecting up to 50 million Americans.
Some studies suggest, for example, that people prone to acne carry more of the microbe Propionibacterium acnes on their skin.
Some of the most common bugs on our bills included Propionibacterium acnes, a bacteria known to cause acne, and Streptococcus oralis, a common bacteria found in our mouths.
The skin bacterium Propionibacterium acnes is thought to play a vital role in the development of the condition.
Amac: Folikuler hiperkeratinizasyon ve Propionibacterium acnes kolonizasyonu, akne patogenezindeki temel sebeplerdir.