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https://www.readbyqxmd.com/read/28546822/commercial-essential-oils-as-potential-antimicrobials-to-treat-skin-diseases
#1
REVIEW
Ané Orchard, Sandy van Vuuren
Essential oils are one of the most notorious natural products used for medical purposes. Combined with their popular use in dermatology, their availability, and the development of antimicrobial resistance, commercial essential oils are often an option for therapy. At least 90 essential oils can be identified as being recommended for dermatological use, with at least 1500 combinations. This review explores the fundamental knowledge available on the antimicrobial properties against pathogens responsible for dermatological infections and compares the scientific evidence to what is recommended for use in common layman's literature...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28544767/a-poly-propyleneimine-dendrimer-based-polyplex-system-for-single-chain-antibody-mediated-targeted-delivery-and-cellular-uptake-of-sirna
#2
Stefanie Tietze, Isabell Schau, Susanne Michen, Franka Ennen, Andreas Janke, Gabriele Schackert, Achim Aigner, Dietmar Appelhans, Achim Temme
Therapeutics based on small interfering RNAs (siRNAs) offer a great potential to treat so far incurable diseases or metastatic cancer. However, the broad application of siRNAs using various nonviral carrier systems is hampered by unspecific toxic side effects, poor pharmacokinetics due to unwanted delivery of siRNA-loaded nanoparticles into nontarget organs, or rapid renal excretion. In order to overcome these obstacles, several targeting strategies using chemically linked antibodies and ligands have emerged...
May 22, 2017: Small
https://www.readbyqxmd.com/read/28539477/bacterial-colonization-and-succession-in-a-newly-opened-hospital
#3
Simon Lax, Naseer Sangwan, Daniel Smith, Peter Larsen, Kim M Handley, Miles Richardson, Kristina Guyton, Monika Krezalek, Benjamin D Shogan, Jennifer Defazio, Irma Flemming, Baddr Shakhsheer, Stephen Weber, Emily Landon, Sylvia Garcia-Houchins, Jeffrey Siegel, John Alverdy, Rob Knight, Brent Stephens, Jack A Gilbert
The microorganisms that inhabit hospitals may influence patient recovery and outcome, although the complexity and diversity of these bacterial communities can confound our ability to focus on potential pathogens in isolation. To develop a community-level understanding of how microorganisms colonize and move through the hospital environment, we characterized the bacterial dynamics among hospital surfaces, patients, and staff over the course of 1 year as a new hospital became operational. The bacteria in patient rooms, particularly on bedrails, consistently resembled the skin microbiota of the patient occupying the room...
May 24, 2017: Science Translational Medicine
https://www.readbyqxmd.com/read/28538949/the-follicular-skin-microbiome-in-patients-with-hidradenitis-suppurativa-and-healthy-controls
#4
Hans Christian Ring, Jonathan Thorsen, Ditte M Saunte, Berit Lilje, Lene Bay, Peter Theut Riis, Niels Larsen, Lee O'Brien Andersen, Henrik V Nielsen, Iben M Miller, Thomas Bjarnsholt, Kurt Fuursted, Gregor Borut Jemec
Importance: Although the pathogenesis of hidradenitis suppurativa (HS) remains enigmatic, several factors point to potential involvement of the cutaneous microbiome. Insight into the cutaneous microbiome in HS using next-generation sequencing may provide novel data on the microbiological diversity of the skin. Objective: To investigate the follicular skin microbiome in patients with HS and in healthy controls. Design, Setting, and Participants: This case-control study obtained punch biopsy specimens from patients with HS (lesional and nonlesional) and healthy controls between October 1, 2014, and August 1, 2016...
May 24, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28532245/applicability-of-ribosome-engineering-to-vitamin-b12-production-by-propionibacterium-shermanii
#5
Yukinori Tanaka, Ken Kasahara, Masumi Izawa, Kozo Ochi
Ribosome engineering has been widely utilized for strain improvement, especially for the activation of bacterial secondary metabolism. This study assessed ribosome engineering technology to modulate primary metabolism, taking vitamin B12 production as a representative example. The introduction into Propionibacterium shermanii of mutations conferring resistance to rifampicin, gentamicin, and erythromycin, respectively, increased per cell production (μg/L/OD600) of vitamin B12 5.2-fold, although net production (μg/L) was unchanged, as the cell mass of the mutants was reduced...
May 22, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28526307/risk-factors-of-cardiac-device-infection-glove-contamination-during-device-procedures
#6
Isabella Kozon, Sam Riahi, Søren Lundbye-Christensen, Anna Margrethe Thøgersen, Tove Ejlertsen, Dorthe Aaen, Kirsten I Paulsen, Søren Hjortshøj
BACKGROUND: Infections in cardiac implantable electronic devices (CIEDs) constitute a serious complication. We sought to identify contamination of gloves before handling the device in primary and replacement CIED procedures. METHODS: Two groups of 30 patients underwent primary CIED implantation or replacement. Before the device entered the surgical field, surgeon and assistant imprinted their outer gloves on aerobe and anaerobe agar plates, and a wound swab was performed...
May 16, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28526023/high-incidence-of-periprosthetic-joint-infection-with-propionibacterium-acnes-after-the-use-of-a-stemless-shoulder-prosthesis-with-metaphyseal-screw-fixation-a-retrospective-cohort-study-of-241-patients-propionibacter-infections-after-eclipse-tsa
#7
Lisa Johansson, Nils P Hailer, Hans Rahme
BACKGROUND: A stemless shoulder prosthesis with humeral metaphyseal screw fixation was introduced in order to save bone-stock and to facilitate reconstruction of biomechanics (Eclipse®). The aim of this study was to analyze whether the risk of infection is different with this implant compared to conventional shoulder prosthesis. METHODS: Two hundred and forty-one patients (54.8% females) were operated with a shoulder arthroplasty and followed for median 2.0 (0...
May 19, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28522997/biogeographic-comparison-of-lophelia-associated-bacterial-communities-in-the-western-atlantic-reveals-conserved-core-microbiome
#8
Christina A Kellogg, Dawn B Goldsmith, Michael A Gray
Over the last decade, publications on deep-sea corals have tripled. Most attention has been paid to Lophelia pertusa, a globally distributed scleractinian coral that creates critical three-dimensional habitat in the deep ocean. The bacterial community associated with L. pertusa has been previously described by a number of studies at sites in the Mediterranean Sea, Norwegian fjords, off Great Britain, and in the Gulf of Mexico (GOM). However, use of different methodologies prevents direct comparisons in most cases...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28507783/periprosthetic-shoulder-infection-an-overview
#9
REVIEW
Nicolas Bonnevialle, Florence Dauzères, Julien Toulemonde, Fanny Elia, Jean-Michel Laffosse, Pierre Mansat
Periprosthetic shoulder infection (PSI) is rare but potentially devastating. The rate of PSI is increased in cases of revision procedures, reverse shoulder implants and co-morbidities. One specific type of PSI is the occurrence of low-grade infections caused by non-suppurative bacteria such as Propionibacterium acnes or Staphylococcus epidemermidis.Success of treatment depends on micro-organism identification, appropriate surgical procedures and antibiotic administration efficiency. Post-operative early PSI can be treated with simple debridement, while chronic PSI requires a one- or two-stage revision procedure...
April 2017: EFORT Open Rev
https://www.readbyqxmd.com/read/28505101/dairy-propionibacteria-versatile-probiotics
#10
REVIEW
Houem Rabah, Fillipe Luiz Rosa do Carmo, Gwénaël Jan
Dairy propionibacteria are used as cheese ripening starters, as biopreservative and as beneficial additives, in the food industry. The main species, Propionibacterium freudenreichii, is known as GRAS (Generally Recognized As Safe, USA, FDA). In addition to another dairy species, Propionibacterium acidipropionici, they are included in QPS (Qualified Presumption of Safety) list. Additional to their well-known technological application, dairy propionibacteria increasingly attract attention for their promising probiotic properties...
May 13, 2017: Microorganisms
https://www.readbyqxmd.com/read/28503566/determination-of-the-use-of-lactobacillus-plantarum-and-propionibacterium-freudenreichii-application-on-fermentation-profile-and-chemical-composition-of-corn-silage
#11
Norafizah Abdul Rahman, Mohd Ridzwan Abd Halim, Noraniza Mahawi, Hazira Hasnudin, Jameel R Al-Obaidi, Norhani Abdullah
Corn was inoculated with Lactobacillus plantarum and Propionibacterium freudenreichii subsp. shermanii either independently or as a mixture at ensiling, in order to determine the effect of bacterial additives on corn silage quality. Grain corn was harvested at 32-37% of dry matter and ensiled in a 4 L laboratory silo. Forage was treated as follows: bacterial types: B0 (without bacteria-control), B1 (L. plantarum), B2 (P. freudenreichii subsp. shermanii), and B3 (combination of L. plantarum and P. freudenreichii subsp...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28499891/sapho-autophagy-il-1-foxo1-and-propionibacterium-cutibacterium-acnes
#12
Jean-Marie Berthelot, Stéphane Corvec, Gilles Hayem
Overt infection by Propionibacterium acnes is lacking in many SAPHO syndromes, and antibiotics have only a transient and incomplete effect, either in SAPHO syndrome or acne. As several auto-inflammatory bone disorders sharing over-production of IL-1β can mimic SAPHO, this syndrome could partly depend on genetically encoded overproduction of IL-1β. However, cyclic intracellular infections, mostly by P. acnes, can contribute to the enhanced IL-1β release by some skin cells, and probably by bone cells. P. acnes is indeed a powerful trigger of NLRP3-inflammasome activation and IL-1β, leading to osteitis and enhanced mesenchymal cells differentiation in osteoblasts...
May 9, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28495228/post-operative-spondylodiscitis-due-to-propionibacterium-acnes-a-case-report
#13
R André, N Sabeh
Post-operative spondylodiscitis due to Propionibacterium acnes is rare, with only a few cases reported in the literature. In this article, we report the case of a 76-year-old patient who suffered from spondylodiscitis T12-L1 discovered after 1 month of pain and fever. Antibiotic treatment was administered for 6 weeks without revision surgery. Diagnosis remains incomplete, and preventive therapy against this infection is not well known. There is no link between immunosuppression and this infection. A cure has been reported in 98% of cases, but further investigation is still required for the establishment of treatment guidelines...
May 8, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28487790/delayed-manifestation-of-shunt-nephritis-a-case-report-and-review-of-the-literature
#14
Michael Babigumira, Benjamin Huang, Sherry Werner, Wajeh Qunibi
We present an unusual case of shunt nephritis in a 39-year-old male who presented 21 years after placement of a ventriculoperitoneal (VP) shunt. He complained of fevers, headaches, dizziness, and urticarial plaques on arms, trunks, and legs and was found to have anemia, low complement levels, elevated serum creatinine, proteinuria, and new onset microhematuria. Blood and urine cultures were negative. Renal biopsy showed features of acute tubulointerstitial nephritis attributed to vancomycin use. Glomeruli showed increased mesangial hypercellularity and segmental endocapillary proliferation...
2017: Case Reports in Nephrology
https://www.readbyqxmd.com/read/28479255/benzoyl-peroxide-and-clindamycin-topical-skin-preparation-decreases-propionibacterium-acnes-colonization-in-shoulder-arthroscopy
#15
Hailey H Dizay, Diana G Lau, Wesley M Nottage
BACKGROUND: Propionibacterium acnes is a gram-positive anaerobe that can lead to devastating postoperative shoulder infections. The objective of this study was to investigate whether a benzoyl peroxide and clindamycin preoperative skin preparation reduces the incidence of P. acnes colonization during shoulder arthroscopy. METHODS: Sixty-five shoulder arthroscopy patients were prospectively enrolled. A skin culture specimen was taken at the preoperative visit from standard arthroscopic portal sites...
May 4, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28470063/green-synthesis-of-conjugated-linoleic-acids-from-plant-oils-using-a-novel-synergistic-catalytic-system
#16
Yu Zhang, Huaxiang Gu, Hao Shi, Fei Wang, Xun Li
A novel and efficient method has been developed for converting plant oil into a specific conjugated linoleic acid (CLA) using a synergistic biocatalytic system based on immobilized Propionibacterium acnes isomerase (PAI) and Rhizopus oryzae lipase (ROL). PAI exhibited the greatest catalytic activity when immobilized on D301R anion-exchange resin under optimal conditions (PAI dosage: 12,410 U PAI/g D301R; glutaraldehyde concentration: 0.4%; reaction conditions: pH 7.0, 25 °C, 60 min). Up to 109 g/L trans-10, cis 12-CLA was obtained after incubation of 200 g/L sunflower oil with PAI (1659 U/g oil) and ROL (625 mU/g oil) at pH 7...
May 4, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28467592/-effect-of-silver-nanoparticles-on-anaerobic-bacteria
#17
Renata Večeřová, Aleš Panáček, Milan Kolář
OBJECTIVE: The aim was to evaluate the antibacterial effect of silver nanoparticles on anaerobic bacteria. MATERIAL AND METHODS: The microdilution method was used to determine the minimum inhibitory concentrations (MICs) of 28 nm silver nanoparticles, both unstabilized and stabilized by casein, gelatin and polyacrylic acid. The following anaerobic bacteria were tested: Bacteroides fragilis, Bacteroides thetaiotaomicron, Eggerthella lenta, Propionibacterium acnes, Clostridium perfringens, Clostridium difficile and Fusobacterium varium...
March 2017: Klinická Mikrobiologie a Infekc̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28462431/total-staphylococci-as-performance-surrogate-for-greywater-treatment
#18
David C Shoults, Nicholas J Ashbolt
Faecal indicator bacteria (FIB) are commonly used as water quality indicators; implying faecal contamination and therefore the potential presence of pathogenic enteric bacteria, viruses, and protozoa. Hence in wastewater treatment, the most commonly used treatment process measures (surrogates) are total coliforms, faecal coliforms, Escherichia coli (E. coli), and enterococci. However, greywater potentially contains skin pathogens unrelated to faecal load, and E. coli and other FIB may grow within greywater unrelated to pathogens...
May 1, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28459130/identification-and-characterization-of-multifunctional-cationic-and-amphipathic-peptides-from-soybean-proteins
#19
Masayuki Taniguchi, Kengo Saito, Takafumi Nomoto, Toshiki Namae, Akihito Ochiai, Eiichi Saitoh, Takaaki Tanaka
In the present study, we identified and chemically synthesized three cationic and amphipathic peptides (Glycinin-17, BCAS-16, and BCBS-11) from soybean proteins. These peptides had high isoelectric points, high positive net charges, and included multiple hydrophobic amino acids. Subsequently, we identified multiple functions of these peptides, including antimicrobial, lipopolysaccharide-neutralizing, and angiogenic activities, and examined their cytotoxic activities against mammalian red blood cells. Glycinin-17, BCAS-16, and BCBS-11 exhibited antimicrobial activity against Porphyromonas gingivalis and Candida albicans whereas Glycinin-17 did not possess antimicrobial effects on Propionibacterium acnes and Streptococcus mutans...
April 29, 2017: Biopolymers
https://www.readbyqxmd.com/read/28459051/bacterial-diversity-of-the-gastric-content-of-preterm-infants-during-their-first-month-of-life-at-the-hospital
#20
Laura Moles, Marta Gómez, Esther Jiménez, Gerardo Bustos, Javier de Andrés, Ana Melgar, Diana Escuder, Leónides Fernández, Rosa Del Campo, Juan Miguel Rodríguez
Studies focused on the stomach microbiota are relatively scarce, and most of them are focused on the adult population. The aim of this work is to describe the bacterial communities inhabiting the gastric content (GC) of preterm neonates. For that purpose, GC samples were collected weekly from a total of 13 preterm neonates during their first month of life within their hospital stay. Samples were analyzed by using both culture-dependent and -independent techniques. The former allowed the isolation of bacteria belonging mainly to the genera Enterococcus, Staphylococcus, Streptococcus, Serratia, Klebsiella, and Escherichia...
2017: Frontiers in Nutrition
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