keyword
MENU ▼
Read by QxMD icon Read
search

propionibacterium

keyword
https://www.readbyqxmd.com/read/29136932/cell-immobilization-on-3d-printed-matrices-a-model-study-on-propionic-acid-fermentation
#1
Fabricio Dos Santos Belgrano, Olaf Diegel, Nei Pereira, Rajni Hatti-Kaul
This study uses three-dimensional (3D) printing technology as a tool for designing carriers for immobilization of microbial cells for bioprocesses. Production of propionic acid from glucose by immobilized Propionibacterium sp. cells was studied as a model system. For cell adsorption, the 3D-printed nylon beads were added to the culture medium during 3 rounds of cell cultivation. Cell adsorption and fermentation kinetics were similar irrespective of the bead size and lattice structure. The cells bound to 15 mm beads exhibited reduced fermentation time as compared to free cell fermentations; maximum productivity and propionic acid titer of 0...
November 2, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/29136261/decrease-in-diversity-of-propionibacterium-acnes-phylotypes-in-patients-with-severe-acne-on-the-back
#2
Marie-Ange Dagnelie, Stéphane Corvec, Mélanie Saint-Jean, Valérie Bourdès, Jean-Michel Nguyen, Amir Khammari, Brigitte Dréno
Propionibacterium acnes, a major member of normal skin microbiota, is subdivided into 6 phylotypes: IA1, IA2, IB, IC, II and III. This study investigated P. acnes subgroups on the face and back in patients with severe acne and in healthy controls. In 71.4% of patients with severe acne, P. acnes phylotypes were identical on the face and back, whereas this was the case in only 45.5% of healthy controls. The healthy group carried phylotypes IA1 (39.1%) and II (43.4%), whereas the acne group carried a high predominance of IA1 (84...
November 14, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/29130432/corrigendum-proposal-to-reclassify-propionibacterium-acnes-type-i-as-propionibacterium-acnes-subsp-acnes-subsp-nov-and-propionibacterium-acnes-type-ii-as-propionibacterium-acnes-subsp-defendens-subsp-nov
#3
Andrew McDowell, Emma Barnard, Jared Liu, Huiying Li, Sheila Patrick
No abstract text is available yet for this article.
November 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/29125405/cutibacterium-formerly-propionibacterium-acnes-infections-associated-with-implantable-devices
#4
Amal A Gharamti, Zeina A Kanafani
Cutibacterium acnes (C. acnes), a Gram-positive biofilm-forming rod implicated in acne vulgaris, is increasingly recognized for its role in implant-associated infections. The diagnosis of C. acnes implant-associated infections remains challenging. The optimal treatment is a combination of both surgical intervention and antibiotic therapy. Areas Covered: In this review, we discuss the different types of implant-associated infections caused by C. acnes. We also highlight the clinical manifestations pertaining to the various sites of infection, and identify several risk factors previously reported in the literature...
November 10, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/29123243/immunohistochemical-detection-of-propionibacterium-acnes-in-the-retinal-granulomas-in-patients-with-ocular-sarcoidosis
#5
Kenji Nagata, Yoshinobu Eishi, Keisuke Uchida, Kazuhito Yoneda, Hiroki Hatanaka, Toru Yasuhara, Maho Nagata, Chie Sotozono, Shigeru Kinoshita
The etiology of sarcoidosis is still obscure; however, Mycobacteria and Propionibacterium acnes are considered the most implicated etiological agent for sarcoidosis. To investigate whether P. acnes is an etiological agent for sarcoid uveitis, we analyzed the frequency of P. acnes detected within the biopsied retinas from patients with ocular sarcoidosis by immunohistochemistry with a P. acnes-specific monoclonal antibody (PAB antibody). Eleven patients (12 eyes) with sarcoid uveitis were enrolled in this study...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29123122/identification-of-low-oxygen-tolerating-bacteria-in-prostate-secretions-of-cancer-patients-and-discussion-of-possible-aetiological-significance
#6
Roshni Bhudia, Amar Ahmad, Onyinye Akpenyi, Angela Whiley, Mark Wilks, Tim Oliver
The microaerophylic organism Propionibacterium acnes has shown consistent association with prostate cancer (PC). Studies linking circumcision with reduced PC further support anaerobes involvement as circumcision reduces anaerobe colonisation on the glans penis. A 1988 study linked anaerobes with PC but considered them as opportunists in necrotic tumour. A hypothesis that a "Helicobacter-like" process causes PC justified this pilot study. Active surveillance patients were enrolled. Post-prostate massage urine samples were screened using the Matrix-Assisted Laser Desorption/Ionization Time-of-Flight (MALDI-TOF) technique for bacterial identification after culture in anaerobic and aerobic conditions...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29108811/the-antimicrobial-effect-of-cen1hc-br-against-propionibacterium-acnes-and-its-therapeutic-and-anti-inflammatory-effects-on-acne-vulgaris
#7
Rui Han, Hans-Matti Blencke, Hao Cheng, Chun Li
Propionibacterium acnes is a commensal bacterium, which is involved in acne inflammation. An antimicrobial peptide named CEN1HC-Br, which was isolated and characterized form the green sea urchin, has been shown to possess broad-spectrum antibacterial activity. Little is known concerning the potential effects of its antibacterial and anti-inflammatory properties against P. acnes. To examine the potency of CEN1HC-Br in acne treatment, we conducted experiments to analyze the antibacterial and anti-inflammatory activities of CEN1HC-Br both in vitro and in vivo...
November 3, 2017: Peptides
https://www.readbyqxmd.com/read/29100929/in-vitro-evaluation-of-marine-derived-fungi-against-cutibacterium-acnes
#8
Shivankar Agrawal, Alok Adholeya, Colin J Barrow, Sunil Kumar Deshmukh
Cutibacterium acnes (or Propionibacterium acnes) is the main target for the prevention and medical treatment of acne vulgaris. The aim of this study was to evaluate the in vitro anti-C. acnes and anti-S. epidermidis properties of some marine fungi isolated from different Indian marine environments. Seventy fungal isolates were obtained from samples collected from the west coasts and Andaman Island, India. Methanol extracts of 35 isolates were screened for their antibacterial properties and 5 out of the 35 isolates displayed significant inhibition as compared with tetracycline...
November 10, 2017: Anaerobe
https://www.readbyqxmd.com/read/29099120/effect-of-crude-and-pure-glycerol-on-biomass-production-and-trehalose-accumulation-by-propionibacterium-freudenreichii-ssp-shermanii-1
#9
Joanna Pawlicka-Kaczorowska, Katarzyna Czaczyk
The dairy propionibacteria, which are traditionally used for the production of Swiss cheeses, are able to synthesize valuable biomolecules, e.g. B group vitamins, propionic acid, and trehalose with unique chemical and physical properties. Both, dairy propionibacteria cells and trehalose, have found many applications as attractive and effective components in food, beauty and health care products. This study confirmed the ability of several strains from the Propionibacterium genus to create trehalose from glycerol...
November 2, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29097104/characterization-of-microbial-community-composition-antimicrobial-resistance-and-biofilm-on-intensive-care-surfaces
#10
K Johani, D Abualsaud, D M Costa, H Hu, G Whiteley, A Deva, K Vickery
BACKGROUND: Organisms causing healthcare associated infections can be sourced from the inanimate environment around patients. Residing in a biofilm increases the chances of these organisms persisting in the environment. We aimed to characterise bacterial environmental contamination, genetically and physiologically, and relate this to general intensive care unit (ICU) cleanliness. METHODS: Cleanliness was determined by adenosine triphosphate (ATP) measurements of 95 high-touch objects...
October 30, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/29095531/low-level-red-led-light-inhibits-hyperkeratinization-and-inflammation-induced-by-unsaturated-fatty-acid-in-an-in-vitro-model-mimicking-acne
#11
Wen-Hwa Li, Ali Fassih, Curt Binner, Ramine Parsa, Michael D Southall
BACKGROUND AND OBJECTIVE: Acne vulgaris is a chronic inflammatory disease of the pilosebaceous units (PSU), associated with increased sebum production, abnormal follicular keratinization (hyperkeratinization), follicular overgrowth of Propionibacterium acnes (P. acnes), and increased inflammatory mediator release. Light therapy has attracted medical interests as a safe alternative treatment for acne. Both blue and red light therapies at high doses >10 J/cm(2) have demonstrated marked effects on inflammatory acne lesions...
November 2, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29093107/detection-of-clinical-cutibacterium-acnes-isolates-in-different-bectondickinson-blood-culture-vials
#12
Rob J Rentenaar, Stijn M Kusen, Margreta Riemens van Zetten, Maaike S M van Mourik
Cutibacterium acnes (reclassification of Propionibacterium acnes) is considered an organism of low pathogenicity (1).….
November 1, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29090848/evidence-for-a-conserved-microbiota-across-the-different-developmental-stages-of-plodia-interpunctella
#13
Valeria Mereghetti, Bessem Chouaia, Lidia Limonta, Daria Patrizia Locatelli, Matteo Montagna
Diversity and composition of lepidopteran microbiotas are poorly investigated, especially across the different developmental stages. To improve this knowledge, we characterize the microbiota among different developmental stages of the Indian meal moth, Plodia interpunctella, which is considered one of the major pest of commodities worldwide. Using culture-independent approach based on Illumina 16S rRNA gene sequencing we characterized the microbiota of four developmental stages: eggs, first and last instar larvae and adult...
November 1, 2017: Insect Science
https://www.readbyqxmd.com/read/29084194/-diet-in-pathogenesis-of-acne-vulgaris
#14
REVIEW
Katarzyna Ozdarska, Karolina Osucha, Stepan Savitskyi, Jacek Malejczyk, Ryszard Galus
Acne vulgaris is one of the most common dermatologic condition especially among adolescents. Acne is related to excess sebum production by sebaceous glands, inflammation both within and adjacent to the comedones, hyperproliferation of Propionibacterium acnes. Some of investigations show association between acne and diet. Milk increases the level of IGF-1 leading to the synthesis of androgen-mediated increases sebum production. Chocolate predispose to hyperglycemia and insulinemia which aggravate of acne vulgaris...
October 23, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29071168/bacterial-community-of-a-spider-marpiss-magister-salticidae
#15
Lihua Zhang, Guimin Zhang, Yueli Yun, Yu Peng
Arthropods are associated with various microorganisms which confer benefits to their hosts. Recently, research has been conducted on bacterial communities of insects to provide an insight into the potential interactions of the symbiotic bacteria and their hosts. Spiders are interesting to study as they are perceived to be natural enemies of pests. The effect of endosymbionts on spiders has been reported, but little is known about the overall bacterial communities present in spiders. Here, we report on the characterization of bacterial communities present in the whole body of the spider Marpiss magister using Illumina sequencing of 16S rRNA amplicons...
December 2017: 3 Biotech
https://www.readbyqxmd.com/read/29071046/native-join-propionibacterium-septic-arthritis
#16
Thomas Taylor, Marcus Coe, Ana Mata-Fink, Richard Zuckerman
Propionibacterium species are associated with normal skin flora and cultures may be dismissed as contaminants. They are increasingly recognized as a cause of septic arthritis following shoulder arthroplasty and arthrotomy. We identified three cases of Propionibacterium septic arthritis in native joints mimicking atypical osteoarthritis and review the literature, clinical course, and treatment of 18 cases. Two cases of Propionibacterium acne in native knee joints and one in a sternoclavicular joint are described...
October 2, 2017: Infectious Disease Reports
https://www.readbyqxmd.com/read/29070948/antibacterial-activity-of-gold-nanorods-against-staphylococcus-aureus-and-propionibacterium-acnes-misinterpretations-and-artifacts
#17
Nouf N Mahmoud, Alaaldin M Alkilany, Enam A Khalil, Amal G Al-Bakri
The antibacterial activity of gold nanorod (GNR) suspensions of different surface functionalities was investigated against standard strains of Staphylococcus aureus and Propionibacterium acnes, taking into consideration two commonly "overlooked" factors: the colloidal stability of GNR suspensions upon mixing with bacterial growth media and the possible contribution of "impurities/molecules" in GNR suspensions to the observed antibacterial activity. The results demonstrated that cationic polyallylamine hydrochloride (PAH)-GNR were severely aggregated when exposed to bacterial growth media compared to other GNR suspensions...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29070062/microbial-biodiversity-assessment-of-the-european-space-agency-s-exomars-2016-mission
#18
Kaisa Koskinen, Petra Rettberg, Rüdiger Pukall, Anna Auerbach, Lisa Wink, Simon Barczyk, Alexandra Perras, Alexander Mahnert, Diana Margheritis, Gerhard Kminek, Christine Moissl-Eichinger
BACKGROUND: The ExoMars 2016 mission, consisting of the Trace Gas Orbiter and the Schiaparelli lander, was launched on March 14 2016 from Baikonur, Kazakhstan and reached its destination in October 2016. The Schiaparelli lander was subject to strict requirements for microbial cleanliness according to the obligatory planetary protection policy. To reach the required cleanliness, the ExoMars 2016 flight hardware was assembled in a newly built, biocontrolled cleanroom complex at Thales Alenia Space in Turin, Italy...
October 25, 2017: Microbiome
https://www.readbyqxmd.com/read/29066297/medicinal-mascarene-aloes-an-audit-of-their-phytotherapeutic-potential
#19
D Lobine, I Cummins, J Govinden-Soulange, M Ranghoo-Sanmukhiya, K Lindsey, P L Chazot, C A Ambler, S Grellscheid, G Sharples, N Lall, I A Lambrechts, C Lavergne, M-J R Howes
A phytochemical and biological investigation of the endemic Mascarene Aloes (Aloe spp.), including A. tormentorii (Marais) L.E.Newton & G.D.Rowley, A. purpurea Lam, A. macra Haw., A. lomatophylloides Balf.f and A. vera (synonym A. barbadensis Mill.), which are used in the traditional folk medicine of the Mascarene Islands, was initiated. Methanolic extracts of the Aloes under study were analysed using high resolution LC-UV-MS/MS and compounds belonging to the class of anthraquinones, anthrones, chromones and flavone C-glycosides were detected...
October 21, 2017: Fitoterapia
https://www.readbyqxmd.com/read/29065388/targeted-sequencing-of-clade-specific-markers-from-skin-microbiomes-for-forensic-human-identification
#20
Sarah E Schmedes, August E Woerner, Nicole M M Novroski, Frank R Wendt, Jonathan L King, Kathryn M Stephens, Bruce Budowle
The human skin microbiome is comprised of diverse communities of bacterial, eukaryotic, and viral taxa and contributes millions of additional genes to the repertoire of human genes, affecting human metabolism and immune response. Numerous genetic and environmental factors influence the microbiome composition and as such contribute to individual-specific microbial signatures which may be exploited for forensic applications. Previous studies have demonstrated the potential to associate skin microbial profiles collected from touched items to their individual owner, mainly using unsupervised methods from samples collected over short time intervals...
October 18, 2017: Forensic Science International. Genetics
keyword
keyword
36784
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"