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https://www.readbyqxmd.com/read/28290176/valve-dehiscence-after-bentall-procedure-the-detrimental-traits-of-propionibacterium
#1
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/28285096/periprosthetic-joint-infection-by-propionibacterium-acnes-clinical-differences-between-monomicrobial-versus-polymicrobial-infection
#2
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/28284083/plasma-pharmacokinetics-and-bioavailability-of-verticillin-a-following-different-routes-of-administration-in-mice-using-liquid-chromatography-tandem-mass-spectrometry
#3
Jiang Wang, Xiaohua Zhu, Shamala Kolli, Hongyan Wang, Cedric J Pearce, Nicholas H Oberlies, Mitch A Phelps
Verticillin A is a natural product isolated from fungal cultures and has displayed potent antibiotic, antiviral, nematocidal, and anticancer properties in vitro. While in vivo studies have been limited due to sparse supply, the in vivo efficacy data that does exist demonstrates potent anti-tumor activity in murine cancer models. The current study aims to investigate the pharmacokinetics and bioavailability of verticillin A in mice to provide guidance for further efficacy assessment in mouse models. A sensitive and specific liquid chromatography-tandem mass spectrometry method was developed and validated for the quantification of verticillin A in mouse plasma...
March 1, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28274355/topical-treatments-for-acne
#4
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
#5
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/28261025/the-use-of-isotretinoin-in-low-doses-and-unconventional-treatment-regimens-in-different-types-of-acne-a-literature-review
#6
REVIEW
Jolanta D Torzecka, Bożena Dziankowska-Bartkowiak, Zofia Gerlicz-Kowalczuk, Anna Wozniacka
High effectiveness of isotretinoin treatment for severe types of acne resistant to antibiotics has been widely recognized. However, the recommended doses in conventional therapy, according to consensus of the Polish Dermatological Society, may cause serious adverse effects. Thus, research into less stressful, alternative treatment regimens with the use of low doses of isotretinoin has been carried out. The aim of the paper was to review the selected papers where authors present the results of their studies on different regimens with the use of isotretinoin in low doses in patients with acne, evaluate their efficacy, patient satisfaction, frequency of adverse effects, recurrences and also treatment costs...
February 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28259563/propionibacterium-acnes-infection-of-a-metacarpophalangeal-joint-arthroplasty
#7
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/28255924/oral-antibacterial-therapy-for-acne-vulgaris-an-evidence-based-review
#8
REVIEW
Amanda Bienenfeld, Arielle R Nagler, Seth J Orlow
BACKGROUND: To some degree, acne vulgaris affects nearly every individual worldwide. Oral antibiotic therapy is routinely prescribed for the treatment of moderate to severe inflammatory acne; however, long-term use of oral antibiotics for acne may have unintended consequences. OBJECTIVE: The aim of this study was to provide a systematic evaluation of the scientific evidence on the efficacy and appropriate use of oral antibiotics in the treatment of acne. METHODS: A systematic search of MEDLINE was conducted to identify randomized controlled clinical trials, systematic reviews, and meta-analyses evaluating the efficacy of oral antibiotics for acne...
March 2, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28237766/n-acetylcysteine-inhibits-growth-adhesion-and-biofilm-formation-of-gram-positive-skin-pathogens
#9
Daria Eroshenko, Tatyana Polyudova, Vladimir Korobov
N-Acetylcysteine (NAC) is a non-antibiotic drug with antimicrobial properties against biofilm phenotypes of Gram-positive and Gram-negative bacteria. Our aim was to assess the effects of NAC on the growth of Gram-positive human skin and mucous membrane pathogens in the planktonic and biofilm phases. The minimum inhibitory concentrations (MICs) of NAC against Enterococcus faecalis, Corynebacterium ammoniagenes, Mycobacterium smegmatis, Propionibacterium acnes, Staphylococcus aureus, S. epidermidis, Streptococcus pyogenes, and 14 clinical strains of coagulase-negative staphylococci (CNS) ranged from 0...
February 22, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28228751/prospects-of-phage-application-in-the-treatment-of-acne-caused-by-propionibacterium-acnes
#10
REVIEW
Ewa Jończyk-Matysiak, Beata Weber-Dąbrowska, Maciej Żaczek, Ryszard Międzybrodzki, Sławomir Letkiewicz, Marzanna Łusiak-Szelchowska, Andrzej Górski
Propionibacterium acnes is associated with purulent skin infections, and it poses a global problem for both patients and doctors. Acne vulgaris (acne) remains a problem due to its chronic character and difficulty of treatment, as well as its large impact on patients' quality of life. Due to the chronic course of the disease, treatment is long lasting, and often ineffective. Currently there are data regarding isolation of P. acnes phages, and there have been numerous studies on phage killing of P. acnes, but no data are available on phage application specifically in acne treatment...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28220628/the-role-of-nicotinamide-in-acne-treatment
#11
REVIEW
Frances M Walocko, Ariel E Eber, Jonette E Keri, Mana A Al-Harbi, Keyvan Nouri
Safe and effective treatment options for acne vulgaris are needed to address side effects and increasing rates of antibiotic resistance from current treatments. Nicotinamide is a vitamin with potent anti-inflammatory properties that could offer a potential treatment option. We aim to summarize the relevant literature on the role of nicotinamide in acne vulgaris and discuss the next steps necessary to move this approach into clinical practice. We searched PubMed for clinical studies using nicotinamide for treatment of acne vulgaris...
February 21, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/28218972/views-of-oral-antibiotics-and-advice-seeking-about-acne-a-qualitative-study-of-online-discussion-forums
#12
M Santer, D Chandler, M Lown, N A Francis, I Muller
BACKGROUND: Acne vulgaris is common and can significantly impair quality of life, yet little is known about patients' understanding of acne and its treatments. Oral antibiotics are widely used for acne, despite concerns about antibiotic resistance. People are increasingly turning to online discussion forums for advice and information on these sites may influence health beliefs and treatment adherence. OBJECTIVE: To explore understandings about the use of oral antibiotics for acne and advice shared amongst messages posted on online forums...
February 20, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28155090/oral-spironolactone-for-acne-vulgaris-in-adult-females-a-hybrid-systematic-review
#13
REVIEW
Alison M Layton, E Anne Eady, Heather Whitehouse, James Q Del Rosso, Zbys Fedorowicz, Esther J van Zuuren
BACKGROUND: The management of acne in adult females is problematic, with many having a history of treatment failure and some having a predisposition to androgen excess. Alternatives to oral antibiotics and combined oral contraceptives (COCs) are required. OBJECTIVE: Our aim was to conduct a hybrid systematic review of the evidence for benefits and potential harms of oral spironolactone in the management of acne in adult females. METHODS: The review was conducted according to a previously published protocol...
April 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28124400/a-multifactorial-comparison-of-ternary-combinations-of-essential-oils-in-topical-preparations-to-current-antibiotic-prescription-therapies-for-the-control-of-acne-vulgaris-associated-bacteria
#14
Lucy Owen, Martin Grootveld, Randolph Arroo, Victor Ruiz-Rodado, Penny Price, Katie Laird
Acne vulgaris, a chronic condition associated with overgrowth of Propionibacterium acnes and Staphylococcus epidermidis, is commonly treated with antibiotics. However, the emergence of antibiotic resistance has resulted in a need for alternative therapies. The aim of this study is to develop a topical preparation incorporating essential oils (EOs) for use against acne-associated bacteria and assess its efficacy against prescription therapies Dalacin T and Stiemycin. Antimicrobial screening of rosewood, clove bud and litsea EOs was conducted before interactions between binary and ternary combinations were determined against P...
January 26, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28119103/topical-delivery-of-roxithromycin-solid-state-forms-entrapped-in-vesicles
#15
Candice Csongradi, Jeanetta du Plessis, Marique Elizabeth Aucamp, Minja Gerber
Recently, considerable interest developed in using newer/improved antibiotics for the treatment of Acne vulgaris. During this study, different roxithromycin solid-state forms (i.e. crystalline and amorphous) were encapsulated into vesicle systems (niosomes, proniosomes, ufosomes and pro-ufosomes) for dermis targeted delivery. Characterization of the vesicles was done with transmission electron microscopy, light microscopy, droplet size, droplet size distribution, pH, zeta-potential and entrapment efficiency percentage...
January 21, 2017: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/28117399/treatment-effects-of-lysozyme-shelled-microbubbles-and-ultrasound-in-inflammatory-skin-disease
#16
Ai-Ho Liao, Chi-Ray Hung, Chieh-Fu Lin, Yi-Chun Lin, Hang-Kang Chen
Acne vulgaris is the most common skin disorder, and is caused by Propionibacterium acnes (P. acnes) and can induce inflammation. Antibiotic therapy often needs to be administered for long durations in acne therapy, which results in extensive antibiotic exposure. The present study investigated a new treatment model for evaluating the antibacterial effects of lysozyme (LY)-shelled microbubbles (MBs) and ultrasound (US)-mediated LY-shelled MBs cavitation against P. acnes both in vitro and in vivo, with the aims of reducing the dose and treatment duration and improving the prognosis of acne vulgaris...
January 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28113163/what-lies-within-the-human-body-might-well-be-one-of-the-best-sources-for-new-antibiotics
#17
Shannon Fischer
In 1991, a group of Italian researchers announced that they had isolated a new antibiotic from a chemical soup brewed with a soil-dwelling bacteria called Planobispora rosea. The drug was a type of thiopeptide, effective against grampositive bacteria like Staphylococcus aureus, P. acnes, and C. difficile but uncooperative in terms of being harnessed for human medicines. Little came of that work until around 2012, when pharma giant Novartis reported that it had begun to experiment with the original drug's structure, ultimately creating a semisynthetic version with enough solubility that it could be effectively administered to human patients...
September 2016: IEEE Pulse
https://www.readbyqxmd.com/read/28111792/inhibition-of-propionibacterium-acnes-lipase-activity-by-the-antifungal-agent-ketoconazole
#18
Mizuki Unno, Otomi Cho, Takashi Sugita
The common skin disease acne vulgaris is caused by Propionibacterium acnes. A lipase secreted by this microorganism metabolizes sebum and the resulting metabolites evoke inflammation in human skin. The antifungal drug ketoconazole inhibits P. acnes lipase activity. We previously showed that the drug also inhibits the growth of P. acnes. Thus, ketoconazole may serve as an alternative treatment for acne vulgaris, which is important because the number of antibiotic-resistant P. acnes strains has been increasing...
January 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28097676/morbihan-disease-complicated-by-dermatosis-neglecta-an-unique-presentation
#19
Ariel E Eber, Stephanie Mlacker, Sebastian Verne, Robert Griffith, Jennifer Ledon, Marina Perper, Keyvan Nouri, Jeong Hee Cho-Vega
Morbihan disease, also referred to as solid facial edema, or rosacea lymphedema, is a rare disorder that involves chronic erythema and solid edema of the cheeks, eyelids, forehead and glabella and may arise as a complication of acne vulgaris or rosacea. Of note, it may be the only initial presenting symptom of these associated diseases. Few cases have been described in the literature, as its first description by Robert Degos in 1957. The condition is characterized by its chronicity, a typical clinical appearance and the lack of specific histopathologic or laboratory findings...
January 18, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28095556/combination-therapy-for-acne-scarring-personal-experience-and-clinical-suggestions
#20
Lucija Kroepfl, Jason J Emer
Acne is one of the most prevalent skin conditions seen by dermatologists. The cosmetic sequelae of severe acne, including scarring and pigmentation, have a profound psychological impact on those in icted. Topical (eg, retinoids, antibiotics, dapsone, hydroxyacids) and oral treatments (eg, antibiotics and/or spironolactone) are often bene cial to control acne or in the instance of oral isotretinoin use, rid the acne permanently; however, these treatments have very little affect on the ultimate cosmetic outcome of the acne scarring and skin texture that results...
November 1, 2016: Journal of Drugs in Dermatology: JDD
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