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P acnes

Yazhou Lin, Yucheng Jiao, Ye Yuan, Zezhu Zhou, Yuehuan Zheng, Jiaqi Xiao, Changwei Li, Zhe Chen, Peng Cao
Evidence suggests that intervertebral disc degeneration (IVDD) can be induced by Propionibacterium acnes (P. acnes), although the underlying mechanisms are unclear. In this study, we analyzed the pathological changes in degenerated human intervertebral discs (IVDs) infected with P. acnes. Compared with P. acnes-negative samples, P. acnes-positive IVDs showed increased apoptosis of nucleus pulposus cells (NPCs) concomitant with severe IVDD. Then, a P. acnes-inoculated IVD animal model was established, and severe IVDD was induced by P...
January 10, 2018: Emerging Microbes & Infections
Lindsey B Armstrong, Pradeep Dinakar, David P Mooney
INTRODUCTION: Anterior cutaneous nerve entrapment syndrome (ACNES) is an underrecognized etiology of chronic abdominal pain that causes great morbidity to those affected. We sought to determine the outcome of neurectomy for ACNES in children. METHODS: Demographic and clinical data on children who underwent neurectomy for ACNES by a single surgeon from 10/2011 to 01/2017 were reviewed. RESULTS: Twenty-six patients underwent neurectomy for ACNES...
December 8, 2017: Journal of Pediatric Surgery
F Chamaie-Nejad, S Saeidi, F Najafi, A Ebrahimi, Z Rahimi, E Shakiba, Z Rahimi
The aim of this study was to detect the association of the cytochrome P450 (CYP) 17 T-34C and CYP19 T<C polymorphisms with the risk of acne vulgaris (AV). The study enrolled 198 patients with AV (mild, moderate and severe) and 195 unrelated age-matched healthy controls from western Iran who had Kurdish ethnic background. The presence of the CYP17 TC genotype significantly increased the risk of mild, moderate and severe AV by 2.68, 2.28 and 2.94 times, respectively, while the presence of the CYP19 TC genotype significantly elevated the risk of overall AV and mild AV by 2...
December 28, 2017: Clinical and Experimental Dermatology
Katarzyna Płoneczka-Janeczko, Jacek Bania, Karolina Bierowiec, Maciej Kiełbowicz, Zdzisław Kiełbowicz
Changes in the microbial populations in the conjunctival sacs of animals have traditionally been evaluated using conventional microbiology techniques. The goal of this study was to examine the suitability of a methodology which may reveal a previously unknown microbiome inhabiting feline conjunctival membranes. In the present study, we determined the microbial diversity in feline conjunctivas based on 16S rRNA gene sequence analysis. Five taxa not described earlier in veterinary ophthalmology (i.e., Staphylococcus caprae, Staphylococcus succinus, Propionibacterium acnes, Psychrobacter faecalis, and Bacillus subtilis) were identified in feline conjunctivas with a high similarity (99-100%)...
2017: BioMed Research International
Anna M Caltabiano, Joe P Foley, André M Striegel
The size-exclusion separation of a water-soluble polyelectrolyte polymer, sodium polystyrene sulfonate (NaPSS), was demonstrated on common reversed-phase (C18, C4, phenyl, and cyano) and hydrophilic interaction chromatography (HILIC) columns. The effect of common solvents - acetonitrile (ACN), tetrahydrofuran (THF), and methanol (MeOH), used as mobile phase modifiers - on the elution of NaPSS and the effect of column temperature (within a relatively narrow range corresponding to typical chromatographic conditions, i...
December 6, 2017: Journal of Chromatography. A
A Svensson, R F Ofenloch, M Bruze, L Naldi, S Cazzaniga, P Elsner, M Goncalo, M-L Schuttelaar, T L Diepgen
BACKGROUND: There is a lack of prevalence data on skin diseases in the general adult population, most studies were carried out in small, national or consecutive clinical samples. OBJECTIVES: To determine the prevalence of common skin disease in the general European population and to additionally assess differences in the characteristics of treatment between countries. METHODS: A random sample consisting out of 12,377 subjects aged 18 to 74 years was drawn from the general population of five European countries (Germany, Italy, The Netherlands, Portugal and Sweden)...
December 16, 2017: British Journal of Dermatology
Keisuke Nakase, Yuhei Okamoto, Sae Aoki, Norihisa Noguchi
Macrolide-resistant Propionibacterium acnes are frequently isolated from patients with acne vulgaris, and the most resistant isolates (>90% resistance) have the 23S rRNA mutation. An increase in resistant P. acnes with this mutation is thought to be caused by the inappropriate use of antimicrobials. Therefore, we studied the mutation frequency of macrolide resistance in P. acnes in vitro. When P. acnes mutants were exposed to clarithromycin after being incubated in broth without antimicrobials, resistant mutants with the 23S rRNA mutation were not isolated...
December 13, 2017: Journal of Dermatology
Danhong Yang, Mei Zhao, Jiahong Tan
OBJECTIVE: To observe the effects differences for polycystic ovary syndrome (PCOS) between periodic therapy of acupuncture and diane-35 and to explore its mechanism. METHODS: Sixty patients were randomly assigned into an acupuncture group and a western medication group, 30 cases in each one, 29 patients finally included with one case dropping out respectively. In the acupuncture group, periodic therapy was mainly used at bilateral Sanyinjiao (SP 6), Dahe (KI 12), Guilai (ST 29), Guanyuan (CV 4), Zhongji (CV 3), with different acupoints in the postmenstrual, intermenstrual, premenstrual periods, once every other day, 3 times a week...
August 12, 2017: Zhongguo Zhen Jiu, Chinese Acupuncture & Moxibustion
Moetaz El-Domyati, Hossam Abdel-Wahab, Aliaa Hossam
BACKGROUND: Minimally invasive procedures provide effective, safe, relatively long-lasting, and natural results without large damage to the skin. A combination treatment is considered an approach that includes at least 2 different and unrelated modalities. OBJECTIVES: This study aims to evaluate the use and effectiveness of some combined minimally invasive procedures for management of acne scarring. PATIENTS/METHODS: Twenty-four volunteers with postacne atrophic scars were randomly divided into 3 equal groups according to performed procedure on each side of the face (microneedling by dermaroller alone or combined with platelet-rich plasma [PRP] or trichloroacetic acid [TCA] 15% peeling) and received 6 bi-weekly sessions of treatment...
December 10, 2017: Journal of Cosmetic Dermatology
Bridget P Kaufman, Taulun Aman, Andrew F Alexis
Postinflammatory hyperpigmentation (PIH) is a reactive hypermelanosis that develops following cutaneous inflammation. Common causes of PIH include intrinsic skin conditions (e.g., acne and eczema) as well as external insults to the skin, such as burn injuries and dermatologic procedures. PIH more commonly occurs in individuals with darker skin, for whom it is often a source of significant psychological distress. Several therapeutic modalities are available for the treatment of PIH, including topical agents, chemical peels, and energy-based devices...
December 8, 2017: American Journal of Clinical Dermatology
Eric M Karp, Todd R Eaton, Violeta Sànchez I Nogué, Vassili Vorotnikov, Mary J Biddy, Eric C D Tan, David G Brandner, Robin M Cywar, Rongming Liu, Lorenz P Manker, William E Michener, Michelle Gilhespy, Zinovia Skoufa, Michael J Watson, O Stanley Fruchey, Derek R Vardon, Ryan T Gill, Adam D Bratis, Gregg T Beckham
Acrylonitrile (ACN) is a petroleum-derived compound used in resins, polymers, acrylics, and carbon fiber. We present a process for renewable ACN production using 3-hydroxypropionic acid (3-HP), which can be produced microbially from sugars. The process achieves ACN molar yields exceeding 90% from ethyl 3-hydroxypropanoate (ethyl 3-HP) via dehydration and nitrilation with ammonia over an inexpensive titanium dioxide solid acid catalyst. We further describe an integrated process modeled at scale that is based on this chemistry and achieves near-quantitative ACN yields (98 ± 2%) from ethyl acrylate...
December 8, 2017: Science
Maria Herrero-Zazo, Ruth Brauer, Fiona Gaughran, Louise M Howard, David Taylor, David J Barlow
BACKGROUND: Animal studies suggest that the antibiotic and microglial activation inhibitor, minocycline, is likely to have a protective effect against the emergence of psychosis but evidence from human studies is lacking. The aim of this study is to examine the effects of exposure to minocycline during adolescence on the later incidence of severe mental illness (SMI). METHODS: A historical cohort study using electronic primary care data was conducted to assess the association between exposure to minocycline during adolescence and incidence of SMI...
December 1, 2017: Journal of Psychopharmacology
Ola Ahmed Bakry, Shawky Mahmoud El Farargy, Noha Nour El Din El Kady, Hend Farag Abu Dawy
Introduction: Acne Vulgaris (AV) is a common inflammatory disease of pilosebaceous units. Liver X Receptor-α (LXR-α) is a ligand activated transcription factor. It controls transcription of genes involved in lipid and fatty acid synthesis. Cyclo-oxygenase 2 (COX2) is a rate limiting enzyme in prostaglandin synthesis. It plays important role in inflammation. Aim: To evaluate the immunohistochemical expression of LXR-α and COX2 in acne vulgaris skin biopsies to explore their possible pathogenic role in this disease...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
Henrik Ugge, Ruzan Udumyan, Jessica Carlsson, Ove Andrén, Scott Montgomery, Sabina Davidsson, Katja Fall
Accumulating evidence suggest that Propionibacterium acnes may play a role in prostate carcinogenesis, but data are so far limited and inconclusive. The aim of this population-based cohort study was therefore to test whether presence of acne vulgaris during late adolescence is associated with an increased risk of prostate cancer later in life. We identified a large cohort of young men born in Sweden between 1952 and 1956, who underwent mandatory assessment for military conscription around the age of 18 (n = 243,187)...
December 4, 2017: International Journal of Cancer. Journal International du Cancer
Rim Braham, Asirvatham Alwin Robert, Maha Ali Musallam, Abdulaziz Alanazi, Nawaf Bin Swedan, Mohamed Abdulaziz Al Dawish
AIM: To identify reproductive disturbances among adolescent girls and young women with type 1 diabetes mellitus (T1DM) in Saudi Arabia. METHODS: This cross sectional study was conducted among 102 female with T1DM, (aged 13-29 years) who attended the Diabetes Clinic at Diabetes Treatment Center, Prince Sultan Military Medical City, Saudi Arabia between April 2015 to March 2016. Clinical history, anthropometric characteristics and reproductive disturbance were collected through a questionnaire...
November 15, 2017: World Journal of Diabetes
Yang Zhang, Xiang-Xiang Li, Yuan Ma, Jie Xu, Li-Na Zhao, Xue-Feng Qian, Xian-Feng Zhang, Jin-Fang Shi, Qing-Zhen Han
Corynebacterium pyruviciproducens (C. pyruviciproducens, CP), as a newly discovered immunomodulator, has been confirmed to have a stronger immunoregulation than Propionibacterium acnes (P. acnes) of the traditional immune adjuvant, by previous experiments with model antigen ovalbumin and sheep red blood cells. Here, it was designed to assess its ability to resist methicillin-resistant Staphylococcus aureus (MRSA), since MRSA as a vital gram positive pathogen is characterized by high morbidity and mortality...
December 4, 2017: Scientific Reports
P Boisrenoult
Propionibacterium acnes is a commensal skin bacterium, regularly implicated in prosthetic joint infection, particularly of the shoulder. Diagnosis has been improved by progress in bacteriological techniques: longer culture time, liquid medium culture, MALDI-TOF mass spectrography, and universal 16S rRNA PCR, associated by some authors to sonication of ablated implants. P. acnes pathogenicity involves many virulence factors, notably including biofilm formation. P. acnes may lead to infection that is clinically evident or, frequently, relatively asymptomatic...
December 1, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
Jetsadaporn Kaewnin, Orawin Vallibhakara, Sakda Arj-Ong Vallibhakara, Penpun Wattanakrai, Benjamaporn Butsripoom, Ekasith Somsook, Sirichai Hongsanguansri, Areepan Sophonsritsuk
Polycystic ovarian syndrome (PCOS) is a common and complex condition characterized by endocrine features and influenced by genetic and environmental factors. In Southeast Asia and Thailand, the prevalence of PCOS is unknown. The aim of this study was to estimate the prevalence of and determine factors associated with PCOS in Thai adolescents. We administered a validated questionnaire to 600 university female participants aged 17-19 years from Mahidol University in Bangkok. Of these, 548 (91.33%) responded and agreed to participate...
December 4, 2017: Gynecological Endocrinology
R Kumar, B Dubashi, S Kayal, S C Lazzar, D Barathi, V Kumar
BACKGROUND: Maintenance treatment of patients with advanced nonsmall cell lung cancer (NSCLC) without disease progression after first-line chemotherapy is a subject of ongoing research. The aim of this study was to investigate the efficacy, safety, and tolerability of the epidermal growth factor receptor (EGFR)-tyrosine-kinase inhibitor, i.e., gefitinib in the maintenance setting irrespective of EGFR status. METHODS: Patients aged 18 years or older of Indian origin, who had a life expectancy of >12 weeks with histologically or cytologically confirmed Stage IV NSCLC, the WHO performance status of 0-2, and who had completed four to six cycles of first-line platinum-based doublet chemotherapy without disease progression or unacceptable toxic effects were included in the study...
January 2017: Indian Journal of Cancer
J C Szepietowski, P Wolkenstein, S Veraldi, D Tennstedt, A Machovcová, A Delarue
BACKGROUND: Acne is common among young people. OBJECTIVE: To describe the burden, management and sources of advice, of acne in a representative sample of young people in Europe. METHODS: This cross-sectional survey was conducted in a representative sample of individuals aged 15-24 years from Belgium, Czech and Slovak Republics, France, Italy, Poland and Spain (n=3099). RESULTS: Most individuals considered their acne (all severity stages) to be no/minor problem, although 29...
December 1, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
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