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https://www.readbyqxmd.com/read/27901206/antimicrobial-activity-of-different-disinfectants-against-cariogenic-microorganisms
#1
Esra Uzer Celik, Ayse Tugce Tunac, Mustafa Ates, Bilge Hakan Sen
The aim of this study was to assess the in vitro antimicrobial effects of chlorhexidine digluconate (CHX), polyhexamethylene biguanide (PHBM), and octenidine dihydrochloride (OCT) on cariogenic microorganisms by using their minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). CHX, PHBM, and OCT were diluted in distilled water to the final test concentrations. Using the in-tube dilution method, Streptococcus mutans, Lactobacillus acidophilus, Lactobacillus rhamnosus, and Actinomyces viscosus were cultivated on blood agar and Mueller-Hinton broth (MHB) at 37°C for 48 h...
November 28, 2016: Brazilian Oral Research
https://www.readbyqxmd.com/read/27900876/effects-of-production-methods-and-protective-ingredients-on-the-viability-of-probiotic-lactobacillus-rhamnosus-r0011-in-air-dried-alginate-beads
#2
Claude P Champagne, Yves Raymond, Yves Arcand
The goal of this study was to use a microencapsulation technology to prepare air-dried concentrated cultures of Lactobacillus rhamnosus R0011. The cultures were microencapsulated in alginate beads, which were added to a growth medium to allow cell multiplication inside the matrix; the beads were recovered, dipped in protective solutions, and air-dried. The effects of fermentation technology and of the composition of the protective solutions on subsequent survival during air-drying were examined. The cells prepared under a constant pH of 6...
August 26, 2016: Canadian Journal of Microbiology
https://www.readbyqxmd.com/read/27896483/the-effects-of-different-carbon-sources-on-the-antifungal-activity-by-lactic-acid-bacteria
#3
Anna Toplaghaltsyan, Inga Bazukyan, Armen Trchounian
Lactobacillus rhamnosus R-2002 strain isolated from Armenian pickled cheese sample has a fungicide effect, which was carried out by the first-time designed method. The fungicide effect of LAB strain was expressed after 5 days of co-cultivation with Mucor plumbeus and 6 days of co-cultivation with Penicillium aurantioviolaceum. The growth as well as the antifungal activity of L. rhamnosus R-2002 was shown to directly depend on the nature of the medium's carbon source. The antifungal activity of this strain against both moulds was inhibited when the combination of 10 g l(-1) glucose and 10 ml l(-1) ethanol in the medium was used as a carbon source...
November 28, 2016: Current Microbiology
https://www.readbyqxmd.com/read/27884128/a-randomised-controlled-demonstration-trial-of-multifaceted-nutritional-intervention-and-or-probiotics-the-healthy-mums-and-babies-humba-trial
#4
Karaponi Okesene-Gafa, Minglan Li, Rennae S Taylor, John M D Thompson, Caroline A Crowther, Christopher J D McKinlay, Lesley M E McCowan
BACKGROUND: Maternal obesity is associated with adverse pregnancy outcomes and has lifelong negative implications for offspring health. The Institute of Medicine recommends limited gestational weight gain (GWG) in obese women for optimal maternal and infant outcomes. However, there is a gap regarding an effective and sustainable intervention strategy to achieve this goal. The aim of the healthy mums and babies (HUMBA) demonstration trial is to assess whether a multifaceted nutritional intervention and/or an oral probiotic treatment in obese pregnant women can reduce excessive GWG and optimise pregnancy outcomes...
November 24, 2016: BMC Pregnancy and Childbirth
https://www.readbyqxmd.com/read/27876597/role-of-synbiotics-in-polysaccharide-assisted-colon-targeted-microspheres-of-mesalamine-for-the-treatment-of-ulcerative-colitis
#5
Rupinderjeet Kaur, Monica Gulati, Sachin Kumar Singh
The present study explains the effect of concomitant administration of synbiotics with the polysaccharide based colon targeted delivery system. As the gut microflora get deranged on administration of mesalamine, drug release from such delivery systems is expected to be jeopardised because the release trigger is dependent solely on the colonic microbiota. To overcome this limitation, mesalamine was formulated as microspheres with guar gum and xanthan gum (prebiotics). These were combined with probiotics containing Lactobacillus acidophilus, L...
November 19, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27869151/the-lectin-like-protein-1-in-lactobacillus-rhamnosus-gr-1-mediates-tissue-specific-adherence-to-vaginal-epithelium-and-inhibits-urogenital-pathogens
#6
Mariya I Petrova, Elke Lievens, Tine L A Verhoeven, Jean M Macklaim, Gregory Gloor, Dominique Schols, Jos Vanderleyden, Gregor Reid, Sarah Lebeer
The probiotic Lactobacillus rhamnosus GR-1 has been documented to survive implantation onto the vaginal epithelium and interfere with urogenital pathogens. However, the molecular mechanisms involved are largely unknown. Here, we report for the first time the construction of dedicated knock-out mutants in L. rhamnosus GR-1 to enable the study of gene functions. In a search for genes responsible for the adherence capacity of L. rhamnosus GR-1, a genomic region encoding a protein with homology to lectin-like proteins was identified...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27865949/lost-in-translation-the-potential-psychobiotic-lactobacillus-rhamnosus-jb-1-fails-to-modulate-stress-or-cognitive-performance-in-healthy-male-subjects
#7
John R Kelly, Andrew P Allen, Andriy Temko, William Hutch, Paul J Kennedy, Niloufar Farid, Eileen Murphy, Geraldine Boylan, John Bienenstock, John F Cryan, Gerard Clarke, Timothy G Dinan
BACKGROUND: Preclinical studies have identified certain probiotics as psychobiotics - live microorganisms with a potential mental health benefit. Lactobacillus rhamnosus (JB-1) has been shown to reduce stress-related behaviour, corticosterone release and alter central expression of GABA receptors in an anxious mouse strain. However, it is unclear if this single putative psychobiotic strain has psychotropic activity in humans. Consequently, we aimed to examine if these promising preclinical findings could be translated to healthy human volunteers...
November 16, 2016: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/27858139/lactobacillus-plantarum-hac01-regulates-gut-microbiota-and-adipose-tissue-accumulation-in-a-diet-induced-obesity-murine-model
#8
Soyoung Park, Yosep Ji, Hoe-Yune Jung, Hyunjoon Park, Jihee Kang, Sang-Haeng Choi, Heuynkil Shin, Chang-Kee Hyun, Kyong-Tai Kim, Wilhelm H Holzapfel
The functional features of Lactobacillus plantarum HAC01 (HAC01), isolated from fermented Korean kimchi, were studied with regard to the fat mass, immunometabolic biomarkers and dysbiosis in a diet-induced obesity (DIO) murine model. L. rhamnosus GG (LGG) served as reference strain and a PBS-treated group as control. The administration of L. plantarum HAC01 resulted in reduction of the mesenteric adipose depot, the conjunctive tissue closely associated with the gastrointestinal tract, where lipid oxidative gene expression was upregulated compared to the control group...
November 17, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27853451/high-protective-efficacy-of-probiotics-and-rice-bran-against-human-norovirus-infection-and-diarrhea-in-gnotobiotic-pigs
#9
Shaohua Lei, Ashwin Ramesh, Erica Twitchell, Ke Wen, Tammy Bui, Mariah Weiss, Xingdong Yang, Jacob Kocher, Guohua Li, Ernawati Giri-Rachman, Nguyen Van Trang, Xi Jiang, Elizabeth P Ryan, Lijuan Yuan
Probiotics have been recognized as vaccine adjuvants and therapeutic agents to treat acute gastroenteritis in children. We previously showed that rice bran (RB) reduced human rotavirus diarrhea in gnotobiotic pigs. Human noroviruses (HuNoVs) are the major pathogens causing non-bacterial acute gastroenteritis worldwide. In this study, Lactobacillus rhamnosus GG (LGG) and Escherichia coli Nissle 1917 (EcN) were first screened for their ability to bind HuNoV P particles and virions derived from clinical samples containing HuNoV genotype GII...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27852545/effects-of-zinc-or-synbiotic-on-the-duration-of-diarrhea-in-children-with-acute-infectious-diarrhea
#10
Ahmet Sami Yazar, Şirin Güven, Ener Çağrı Dinleyici
BACKGROUND/AIMS: Probiotic effects on acute infectious diarrhea are strain(s) specific, and all formulations should be evaluated by clinical trials. We aimed to evaluate the effect of a synbiotic preparation on the duration of diarrhea in children compared to a zinc suspension. MATERIALS AND METHODS: We conducted a single-center, randomized, and controlled clinical trial in children with acute infectious diarrhea. The first group received a synbiotic preparation containing Lactobacillus casei, L...
November 2016: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/27836508/impact-of-probiotics-for-reducing-infections-in-veterans-improve-study-protocol-for-a-double-blind-randomized-controlled-trial-to-reduce-carriage-of-staphylococcus-aureus
#11
Shoshannah Eggers, Anna Barker, Susan Valentine, Timothy Hess, Megan Duster, Nasia Safdar
BACKGROUND: Staphylococcus aureus (S. aureus) is an organism of great public health importance, causing 20,000 deaths annually. Decolonization of patients with S. aureus may prevent infections, yet current options are limited to antimicrobials that promote antibiotic resistance and can cause adverse side effects. Probiotics have potential to reduce colonization of pathogenic bacteria, representing a promising alternative for S. aureus decolonization, but thus far lack rigorous evaluation...
November 9, 2016: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/27833605/lactobacillus-fermentum-atcc-23271-displays-in-vitro-inhibitory-activities-against-candida-spp
#12
Monique S do Carmo, Francisca M F Noronha, Mariana O Arruda, Ênnio P da Silva Costa, Maria R Q Bomfim, Andrea S Monteiro, Thiago A F Ferro, Elizabeth S Fernandes, Jorge A Girón, Valério Monteiro-Neto
Lactobacilli are involved in the microbial homeostasis in the female genital tract. Due to the high prevalence of many bacterial diseases of the female genital tract and the resistance of microorganisms to various antimicrobial agents, alternative means to control these infections are necessary. Thus, this study aimed to evaluate the probiotic properties of well-characterized Lactobacillus species, including L. acidophilus (ATCC 4356), L. brevis (ATCC 367), L. delbrueckii ssp. delbrueckii (ATCC 9645), L. fermentum (ATCC 23271), L...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27826653/orally-administered-multispecies-probiotic-formulations-to-prevent-uro-genital-infections-a-randomized-placebo-controlled-pilot-study
#13
Valerio Mezzasalma, Enrico Manfrini, Emanuele Ferri, Marco Boccarusso, Patrizia Di Gennaro, Irene Schiano, Angela Michelotti, Massimo Labra
PURPOSE: The aim of this study was to evaluate in the vagina of 60 pre-menopausal women the detection of orally administered multispecies probiotic formulations showing anti-microbial properties in test in vitro. METHODS: A randomized, double-blind, three-arm parallel pilot study was carried out on 60 pre-menopausal women. Subjects were randomly divided in three groups (F_1, F_2, F_3). Each group received a daily oral administration of probiotic mixtures (for 14 days and at the day 21, 7 days after the wash-out) containing: Lactobacillus acidophilus and Lactobacillus reuteri (F_1), or Lactobacillus plantarum, Lactobacillus rhamnosus and Bifidobacterium animalis subsp...
November 9, 2016: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27821063/high-fat-diet-induced-atherosclerosis-is-accompanied-with-low-colonic-bacterial-diversity-and-altered-abundances-that-correlates-with-plaque-size-plasma-a-fabp-and-cholesterol-a-pilot-study-of-high-fat-diet-and-its-intervention-with-lactobacillus-rhamnosus
#14
Yee Kwan Chan, Manreetpal Singh Brar, Pirkka V Kirjavainen, Yan Chen, Jiao Peng, Daxu Li, Frederick Chi-Ching Leung, Hani El-Nezami
BACKGROUND: Atherosclerosis appears to have multifactorial causes - microbial component like lipopolysaccharides (LPS) and other pathogen associated molecular patterns may be plausible factors. The gut microbiota is an ample source of such stimulants, and its dependent metabolites and altered gut metagenome has been an established link to atherosclerosis. In this exploratory pilot study, we aimed to elucidate whether microbial intervention with probiotics L. rhamnosus GG (LGG) or pharmaceuticals telmisartan (TLM) could improve atherosclerosis in a gut microbiota associated manner...
November 8, 2016: BMC Microbiology
https://www.readbyqxmd.com/read/27812649/a-randomized-clinical-trial-on-the-effectiveness-of-a-symbiotic-product-to-decolonize-patients-harboring-multidrug-resistant-gram-negative-bacilli
#15
Mariana Correa Coelho Salomão, Mário Augusto Heluany-Filho, Mayra Gonçalves Menegueti, Marlieke Elizabeth Adriana De Kraker, Roberto Martinez, Fernando Bellissimo-Rodrigues
INTRODUCTION: We aimed to evaluate the effectiveness of a symbiotic product to decolonize the intestinal tract of patients harboring multidrug-resistant (MDR) Gram-negative bacilli and to prevent nosocomial infections. METHODS: This was a randomized, double blind, placebo-controlled clinical trial, conducted in a tertiary-care university hospital. All adult hospitalized patients with a positive clinical culture and a positive rectal swab for any MDR Gram-negative bacilli were potentially eligible...
September 2016: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/27811096/complete-genome-sequence-of-lactobacillus-rhamnosus-strain-lrb
#16
Saswati Biswas, Indranil Biswas
Lactobacillus rhamnosus is a Gram-positive facultative heterofermentative lactic acid bacterium. It is often isolated from the gastrointestinal tract, mouth, vagina, and fermented dairy products. We have isolated the L. rhamnosus strain LRB from a healthy baby tooth that had naturally fallen out. Here, we report the annotated whole-genome sequence of LRB.
November 3, 2016: Genome Announcements
https://www.readbyqxmd.com/read/27802124/margin-integrity-and-secondary-caries-of-lined-or-non-lined-composite-and-glass-hybrid-restorations-after-selective-excavation-in-vitro
#17
F Schwendicke, Jlm Kniess, S Paris, U Blunck
OBJECTIVES: For deep carious lesions, selective carious tissue removal (leaving soft dentin close to the pulp) is suggested. Afterward, different restoration materials, such as resin composites or glass hybrids (GHs), can be placed. Many dentists also apply setting or non-setting calcium hydroxide liners before restoration. We compared margin integrity and susceptibility for secondary caries in differently restored premolars in vitro. METHODS: In 48 extracted human premolars, artificial residual lesions were induced on pulpo-axial walls of standardized cavities...
November 1, 2016: Operative Dentistry
https://www.readbyqxmd.com/read/27790333/a-multi-strain-synbiotic-may-reduce-viral-respiratory-infections-in-asthmatic-children-a-randomized-controlled-trial
#18
Hamid Ahanchian, Seyed Ali Jafari, Elham Ansari, Toktam Ganji, Mohammad Ali Kiani, Maryam Khalesi, Tooba Momen, Hamidreza Kianifar
BACKGROUND AND OBJECTIVE: Asthma is a growing problem worldwide. Acute exacerbations impose considerable morbidity, mortality, and increased cost. Viral respiratory infections are the most common cause (80-85%) of pediatric asthma exacerbations and admissions to the hospital. The aim of this study was to determine the effect of a new synbiotic Lactocare® on viral respiratory infections and asthma exacerbations in asthmatic children. METHODS: In this double blind, placebo-controlled, randomized clinical trial, 72 children with mild persistent asthma, aged between 6 and 12 years, were randomized to receive either Lactocare®, a Synbiotic containing 1 billion CFU/Capsule of Lactobacillus casei, Lactobacillus rhamnosus, Streptococcus thermophilus, Bifidobacterium breve, Lactobacillus acidophilus, Bifidobacterium infantis, Lactobacillus bulgaricus, and Fructooligosacharide (Zist Takhmir, Tehran, Iran) or placebo daily for 60 days...
September 2016: Electronic Physician
https://www.readbyqxmd.com/read/27786292/isolated-exopolysaccharides-from-lactobacillus-rhamnosus-gg-alleviated-adipogenesis-mediated-by-tlr2-in-mice
#19
Zhen Zhang, Zhigang Zhou, Yu Li, Linkang Zhou, Qianwen Ding, Li Xu
The fibroblast cell line of 3T3-L1 was used as a cell model for screening and evaluating the feasibility of probiotic components in improving animal lipid metabolisms. The extracts from 12 Lactobacillus strains caused significantly reduced triacylglycerol (TAG) accumulation but with severe inflammation induction in 3T3-L1 adipocytes. Interestingly, exopolysaccharides (EPS) from LGG (Lactobacillus rhamnosus GG) significantly decreased the TAG accumulation without any inflammation. The anti-obesity effect of EPS was confirmed in high-fat-diets feeding mice...
October 27, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27779809/long-term-safety-and-efficacy-of-perinatal-probiotic-intervention-evidence-from-a-follow-up-study-of-four-randomized-double-blind-placebo-controlled-trials
#20
Krista Lundelin, Tuija Poussa, Seppo Salminen, Erika Isolauri
BACKGROUND: Societies worldwide are faced with a progressive increase in immune-mediated health problems such as allergic, autoimmune and inflammatory diseases, as well as obesity. Perinatal administration of specific probiotic bacteria is an attractive approach in reducing the risk of these conditions, but long-term efficacy and safety data are lacking. The aim here was to evaluate the clinical benefit and long-term safety of specific probiotics administered during the perinatal period...
October 25, 2016: Pediatric Allergy and Immunology
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