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propionibacterium

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https://www.readbyqxmd.com/read/28337185/food-like-growth-conditions-support-production-of-active-vitamin-b12-by-propionibacterium-freudenreichii-2067-without-dmbi-the-lower-ligand-base-or-cobalt-supplementation
#1
Paulina Deptula, Bhawani Chamlagain, Minnamari Edelmann, Panchanit Sangsuwan, Tuula A Nyman, Kirsi Savijoki, Vieno Piironen, Pekka Varmanen
Propionibacterium freudenreichii is a traditional dairy bacterium and a producer of short chain fatty acids (propionic and acetic acids) as well as vitamin B12. In food applications, it is a promising organism for in situ fortification with B12 vitamin since it is generally recognized as safe (GRAS) and it is able to synthesize biologically active form of the vitamin. In the present study, vitamin B12 and pseudovitamin biosynthesis by P. freudenreichii was monitored by UHPLC as a function of growth in food-like conditions using a medium mimicking cheese environment, without cobalt or 5,6-dimethylbenzimidazole (DMBI) supplementation...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28336587/draft-genome-sequence-of-propionibacterium-avidum-strain-ucd-pd2-isolated-from-a-feline-anal-sac
#2
Petra A Dahms, Alexandra L Martin, Holly H Ganz, Jonathan A Eisen, David A Coil
Here, we present the draft genome sequence of Propionibacterium (Cutibacterium) avidum strain UCD-PD2. The assembly contains 2,667,287 bp in 51 contigs. The strain was isolated from anal sac secretion samples collected from a feral domestic cat (Felis catus) as part of a larger project to study the microbiology of cats.
March 23, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28333122/differences-in-the-bacteriome-of-smokeless-tobacco-products-with-different-oral-carcinogenicity-compositional-and-predicted-functional-analysis
#3
Nezar Noor Al-Hebshi, Fahd Ali Alharbi, Mohammed Mahri, Tsute Chen
Smokeless tobacco (ST) products vary significantly in their oral carcinogenicity. Much is known about the differences in the chemical, but not the bacterial, constituents of these products. In this study, we explored the composition and function of the bacteriome in ST products from four countries using quantitative polymerase chain reaction (qPCR) and 16S rRNA-based next generation sequencing. The bacterial load (16S rRNA copies/gram) was lowest in Swedish snus (3.4 × 10⁶) and highest in Yemeni shammah (6...
March 23, 2017: Genes
https://www.readbyqxmd.com/read/28330105/deciphering-the-effect-of-novel-bacterial-exopolysaccharide-based-nanoparticle-cream-against-propionibacterium-acnes
#4
Abraham P Karlapudi, Vidya P Kodali, Krishna P Kota, Sabiha S Shaik, N S Sampath Kumar, Vijaya R Dirisala
Acne vulgaris (acne) is a chronic inflammatory disease prevalent among adolescents and adults, with significant psychological effects. The aetiology of acne is multifactorial. Several pathophysiological associations have been identified in which Propionibacterium acnes plays a major role. This bacteria primarily affects areas containing oil glands including the face, back and trunk, where it causes the formation of seborrhoea and inflammatory lesions. The treatment methods currently in place have side effects...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28321209/treatment-of-leishmania-leishmania-amazonensis-infected-mice-with-a-combination-of-a-palladacycle-complex-and-heat-killed-propionibacterium-acnes-triggers-protective-cellular-immune-responses
#5
Carolina S Paladi, Danielle A M da Silva, Priscila D Motta, Daniel M Garcia, Daniela Teixeira, Ieda M Longo-Maugéri, Simone Katz, Clara L Barbiéri
Palladacycle complex DPPE 1.2 was previously reported to inhibit the in vitro and in vivo infection by Leishmania (Leishmania) amazonensis. The aim of the present study was to compare the effect of DPPE 1.2, in association with heat-killed Propionibacterium acnes, on L. (L.) amazonensis infection in two mouse strains, BALB/c and C57BL/6, and to evaluate the immune responses of the treated animals. Foot lesions of L. (L.) amazonensis-infected mice were injected with DPPE 1.2 alone, or associated with P. acnes as an adjuvant...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28295699/propionibacterium-acnes-phylotypes-and-acne-severity-an-observational-prospective-study
#6
C Paugam, S Corvec, M Saint-Jean, M Le Moigne, A Khammari, A Boisrobert, J M Nguyen, A Gaultier, B Dréno
Although a number of facts on the physiopathological mechanisms of acne are now well established, it is still unclear what triggers the severity of this inflammatory disease of the sebaceous follicle. Thus, could the severity of the acne be somehow linked to different strains of its main bacterium, Propionibacterium acnes? We know that there are several types of P. acnes, and a study (1) has recently shown that different strains of P. acnes could up-regulate or down-regulate in vitro inflammatory keratinocyte response...
March 10, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28291179/the-influence-of-direct-inoculation-of-propionibacterium-acnes-on-modic-changes-in-the-spine-evidence-from-a-rabbit-model
#7
Zhi Shan, Xuyang Zhang, Shengyun Li, Tianming Yu, Maiwulanjiang Mamuti, Fengdong Zhao
BACKGROUND: Modic changes (inflammatory-like changes visible on magnetic resonance imaging [MRI] scans of a vertebral end plate) are common and are associated with low back pain, but their origin is unclear. To our knowledge, there have been no previous in vivo animal models of Modic changes. We hypothesized that Modic changes may be related to Propionibacterium acnes. METHODS: Ten New Zealand White rabbits were injected percutaneously with 1 mL of P. acnes (1.6 × 10 colony forming units/mL) into the subchondral bone superior to the L4-L5 and L5-L6 discs; 10 other control rabbits received sham injections at L4-L5 and 1 mL of normal saline solution (vehicle) at L5-L6...
March 15, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28290176/valve-dehiscence-after-bentall-procedure-the-detrimental-traits-of-propionibacterium
#8
Robert A F de Lind van Wijngaarden, Richard van Valen, Jos A Bekkers, Ad J J C Bogers
The present case exemplified the detrimental traits of prosthetic valve endocarditis caused by Propionibacterium acnes. As a baby, the patient had a congenital cardiac defect with truncus arteriosus type I with interrupted aortic arch and open ductus Botalli, and had undergone several operations. However, at 18 months after a Bentall procedure performed 29 years later he presented with major prosthetic dehiscence due to endocarditis. The patient underwent a high-risk reoperation for a re-do Bentall procedure and was treated postoperatively with intravenous antibiotics consisting of vancomycin for five weeks and penicillin and rifampicin each for six weeks...
November 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28289569/diverse-bacterial-communities-exist-on-canine-skin-and-are-impacted-by-cohabitation-and-time
#9
Sheila Torres, Jonathan B Clayton, Jessica L Danzeisen, Tonya Ward, Hu Huang, Dan Knights, Timothy J Johnson
It has previously been shown that domestic dogs and their household owners share bacterial populations, and that sharing of bacteria between humans is facilitated through the presence of dogs in the household. However, less is known regarding the bacterial communities of dogs, how these communities vary by location and over time, and how cohabitation of dogs themselves influences their bacterial community. Furthermore, the effects of factors such as breed, hair coat length, sex, shedding, and age on the canine skin microbiome is unknown...
2017: PeerJ
https://www.readbyqxmd.com/read/28285096/periprosthetic-joint-infection-by-propionibacterium-acnes-clinical-differences-between-monomicrobial-versus-polymicrobial-infection
#10
Raúl Figa, David Muñetón, Lucía Gómez, A Matamala, Mayli Lung, Eva Cuchi, Pablo S Corona
OBJECTIVE: To compare a series of monomicrobial Propionibacterium acnes (P. acnes) knee and hip periprosthetic joint infection (PJI) cases with cases of polymicrobial PJI which included P. acnes. We hypothesized that the presence of a polymicrobial P. acnes infection would lead to worse outcomes than those in cases of monomicrobial P. acnes PJI. METHODS: Retrospective multicentre study. All patients with hip or knee PJIs including P. acnes diagnosed from August-2002 to July-2013 in two university hospitals were included...
March 8, 2017: Anaerobe
https://www.readbyqxmd.com/read/28282487/establishment-of-multiplex-solid-phase-strip-pcr-test-for-detection-of-24-ocular-infectious-disease-pathogens
#11
Satoko Nakano, Sunao Sugita, Yasuhiro Tomaru, Ayumi Hono, Takako Nakamuro, Toshiaki Kubota, Hiroshi Takase, Manabu Mochizuki, Masayo Takahashi, Norio Shimizu
Purpose: To establish and evaluate a new multiplex solid-phase strip polymerase chain reaction (strip PCR) for concurrent detection of common ocular infectious disease pathogens. Methods: A new multiplex strip PCR was established to detect 24 common ocular infectious disease pathogens: herpes simplex virus (HSV) 1, HSV2, varicella-zoster virus (VZV), Epstein-Barr virus (EBV), cytomegalovirus (CMV), human herpes virus (HHV) 6, HHV7, HHV8, human T-cell lymphotropic virus (HTLV)-1, adenovirus, Mycobacterium tuberculosis, Treponema pallidum, Propionibacterium acnes (P...
March 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28279857/performance-of-two-blood-culture-systems-to-detect-anaerobic-bacteria-is-there-any-difference
#12
Manica Mueller-Premru, Samo Jeverica, Lea Papst, Elisabeth Nagy
We studied the performance characteristics of two blood culture (BC) bottles/systems, (i) BacT/ALERT-FN Plus/3D (bioMérieux, Marcy l'Étoile, France) and (ii) BACTEC-Lytic/9000 (Becton Dickinson, Sparks, USA) for detection of growth and time-to-positivity (TTP) against a balanced and diverse collection of anaerobic bacterial strains (n = 48) that included reference strains (n = 19) and clinical isolates (n = 29) of 32 species (15 Gram-negative and 17 Gram-positive) was tested. Standard suspension of bacteria was inoculated to each bottle in duplicates and incubated in the corresponding system...
March 6, 2017: Anaerobe
https://www.readbyqxmd.com/read/28274355/topical-treatments-for-acne
#13
Marita Kosmadaki, Andreas Katsambas
Topical drugs have been used successfully to treat acne for decades. This review discusses the use, efficacy, and safety of options available via prescription. Topical antibiotics, dapsone, benzyl peroxide, azelaic acid, and topical retinoids are included. Topical antibiotics should not be used as monotherapy but rather be combined with other agents to avoid resistant Propionibacterium acnes strains. Benzoyl peroxide is effective in preventing bacteria resistance. Topical retinoids address primarily the comedonal but also the inflammatory lesions of acne...
March 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28274353/propionibacterium-acnes-and-antimicrobial-resistance-in-acne
#14
Clio Dessinioti, Andreas Katsambas
The human commensal bacterium Propionibacterium acnes (P. acnes) resides in the pilosebaceous duct of the skin. It has been long implicated in the pathogenesis of acne, although its exact role in the development of inflammatory acne lesions and in the formation of the microcomedo in the early stages of acne remains controversial. The worldwide prevalence of antibiotic-resistant P. acnes is increasing, with rates varying in different parts of the world. The reason for the difference in the antibiotic resistance patterns of P...
March 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28274348/understanding-the-role-of-propionibacterium-acnes-in-acne-vulgaris-the-critical-importance-of-skin-sampling-methodologies
#15
Hélène Omer, Andrew McDowell, Oleg A Alexeyev
Acne vulgaris is a chronic inflammatory skin condition classified by the Global Burden of Disease Study as the eighth most prevalent disease worldwide. The pathophysiology of the condition has been extensively studied, with an increase in sebum production, abnormal keratinization of the pilosebaceous follicle, and an inflammatory immune response all implicated in its etiology. One of the most disputed points, however, is the role of the gram-positive anaerobic bacterium Propionibacterium acnes in the development of acne, particularly when this organism is also found in normal sebaceous follicles of healthy skin...
March 2017: Clinics in Dermatology
https://www.readbyqxmd.com/read/28270483/propionibacterium-acnes-as-a-possible-pathogen-of-granuloma-in-patients-with-ocular-sarcoidosis
#16
Hiroshi Goto, Yoshihiko Usui, Akihiko Umazume, Keisuke Uchida, Yoshinobu Eishi
BACKGROUND/AIMS: To detect Propionibacterium acnes from intraocular granuloma in patients with ocular sarcoidosis. METHODS: Ten patients (10 eyes) with uveitis associated with sarcoidosis, who underwent vitrectomy to remove the epiretinal membrane were analysed. The patients were 70.4±7.6 (mean±SD) years of age, and the observation period from diagnosis of sarcoidosis until vitrectomy was 27.6±15.1 months. Histopathological examination of paraffin-embedded sections of the excised epiretinal membranes was conducted by H&E staining and immunohistochemical staining using PAB antibody, which is a monoclonal antibody against P...
March 7, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28259563/propionibacterium-acnes-infection-of-a-metacarpophalangeal-joint-arthroplasty
#17
Guillaume Bacle, Sheena K Sikora, Eugene T H Ek
Neglected and underestimated in the past, Propionibacterium acnes is currently the most prevalent organism associated with deep prosthetic infections around the shoulder. Surprisingly, it has never been reported as a cause of infection in the hand. Here we report a case of a late presentation of a P. acnes infection in a metacarpophalangeal joint replacement, resulting in chronic low-grade pain with movement. The patient underwent a 2-stage revision, with initial removal of the prosthesis. Positive cultures for P...
March 1, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28251782/one-year-calorie-restriction-impacts-gut-microbial-composition-but-not-its-metabolic-performance-in-obese-adolescents
#18
Alicia Ruiz, Tomás Cerdó, Ruy Jáuregui, Dietmar H Pieper, Ascensión Marcos, Alfonso Clemente, Federico García, Abelardo Margolles, Manuel Ferrer, Cristina Campoy, Antonio Suárez
Recent evidence has disclosed a connection between gut microbial glycosidase activity and adiposity in obese. Here, we measured microbial α-glucosidase and β-galactosidase activities and sorted fluorescently labeled β-galactosidase containing (βGAL) microorganisms in faecal samples of eight lean and thirteen obese adolescents that followed a controlled calorie restriction program during one year. β-galactosidase is a highly distributed functional trait, mainly expressed by members of Blautia, Bacteroides, Alcaligenes, Acinetobacter and Propionibacterium...
March 2, 2017: Environmental Microbiology
https://www.readbyqxmd.com/read/28249746/the-evaluation-of-cultivable-microbiota-profile-in-patients-with-secondary-endodontic-infection-before-and-after-photo-activated-disinfection
#19
Maryam Pourhajibagher, Roghayeh Ghorbanzadeh, Steven Parker, Nasim Chiniforush, Abbas Bahador
BACKGROUND: Secondary/persistent endodontic infection can be the outcome of failure of endodontic treatment. Photo-activated disinfection (PAD) can be a useful adjunct to mechanical and antimicrobial agents in eliminating endopathogenic microorganisms. In this study, we evaluated the effect of PAD on diversity and count of microbiota related to secondary/persistent endodontic infections. MATERIALS AND METHODS: Root canal samples were taken using sterile paper points from the root canals of 14 patients with secondary/persistent endodontic infections after removing the root-canal filling materials...
February 26, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28245928/evaluation-of-dental-adhesive-systems-incorporating-an-antibacterial-monomer-eugenyl-methacrylate-egma-for-endodontic-restorations
#20
A Almaroof, S A Niazi, L Rojo, F Mannocci, S Deb
OBJECTIVE: The purpose of this study was to incorporate EgMA, an antibacterial monomer into two commercial dental adhesive systems for their application in endodontic restoration with the aim to disinfect the root canal space before curing and to inhibit bacterial growth on their surfaces after being cured. METHODS: EgMA monomer was added at 20%wt. into the formulation of the single-component self-etch, Clearfil Universal Bond™ (CUB) and into the catalyst and the adhesive components of the total-etch Adper Scotchbond-multipurpose™ (SBMP) adhesive systems...
February 25, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
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