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https://www.readbyqxmd.com/read/29032650/immunomodulatory-potential-of-weissella-cibaria-in-aged-c57bl-6j-mice
#1
Ho-Eun Park, Kyung-Won Kang, Bum-Seok Kim, Sang-Myeong Lee, Wan-Kyu Lee
Aging is associated with distinct changes in immune cells and a decline in immune function, leading to increased susceptibility to infection and reduced responses to vaccination. Certain strains of lactic acid bacteria exert beneficial effects on the immune system. Previously, we reported that Weissella cibaria JW15 isolated from kimchi possesses immune stimulatory activity in vitro. In the present study, we further investigated whether oral administration of JW15 improves immune function in aged mice. Eighteen-month-old female mice were administered JW15 daily at low (JW15-L; 1×10⁸ CFU/mouse) or high dosage (JW15-H; 1×10⁸ CFU/mouse), or with Lactobacillus rhamnosus GG using oral gavage...
October 14, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29031239/probiotic-intervention-influences-the-salivary-levels-of-matrix-metalloproteinase-mmp-9-and-tissue-inhibitor-of-metalloproteinases-timp-1-in-healthy-adults
#2
Heli Jäsberg, Taina Tervahartiala, Timo Sorsa, Eva Söderling, Anna Haukioja
OBJECTIVE: To study the effect of orally administered Bifidobacterium animalis subsp. lactis BB-12 and Lactobacillus rhamnosus GG on the salivary levels of Matrix Metalloproteinases (MMP)-8, MMP-9 and of Tissue Inhibitor of Metalloproteinases (TIMP)-1 in healthy adults. Furthermore, the correlations between MMP-8, MMP-9 and TIMP-1 and plaque and gingival indices, salivary mutans streptococci and lactobacilli counts, and stimulated saliva secretion rate were analysed. DESIGN: The salivary samples originated from a randomized controlled trial where healthy student volunteers consumed probiotic or placebo lozenges twice a day for four weeks...
October 7, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29031236/inhibitory-effect-of-probiotic-lactobacilli-supernatants-on-single-and-mixed-non-albicans-candida-species-biofilm
#3
Yulong Tan, Matthias Leonhard, Doris Moser, Su Ma, Berit Schneider-Stickler
OBJECTIVES: Oral candidiasis is one of the most common human fungal infections. While most cases of the Candida species isolated from the oral cavity are Candida albicans, a large number of candidiasis is attributed to non-albicans Candida species. In this study, we aim to evaluate the in vitro inhibition of supernatants of Lactobacillus gasseri and Lactobacillus rhamnosus on the single and mixed species biofilm of non-albicans Candida species, including Candida tropicalis, Candida krusei and Candida parapsilosis...
October 6, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29027368/expression-of-fluorescent-proteins-in-lactobacillus-rhamnosus-to-study-host-microbe-and-microbe-microbe-interactions
#4
Irina Spacova, Elke Lievens, Tine Verhoeven, Hans Steenackers, Jos Vanderleyden, Sarah Lebeer, Mariya I Petrova
Probiotic Lactobacillus strains are widely used to benefit human and animal health, although the exact mechanisms behind their interactions with the host and the microbiota are largely unknown. Fluorescent tagging of live probiotic cells is an important tool to unravel their modes of action. In this study, the implementation of different heterologously expressed fluorescent proteins for the labelling of the model probiotic strains Lactobacillus rhamnosusGG (gastrointestinal) and Lactobacillus rhamnosusGR-1 (vaginal) was explored...
October 13, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/29026729/probiotics-in-children-what-is-the-evidence
#5
REVIEW
Iva Hojsak
The number of papers discussing probiotics increases tremendously that limits the possibility for primary care physicians and clinicians to stay updated. Therefore, the aim of this paper will be to summarize available evidence of probiotic use in well-defined clinical indications of importance for pediatricians. Based on currently available evidence certain probiotic strains (Lactobacillus rhamnosus GG [LGG] and Saccharomyces boulardii) have proven effect in the treatment of acute gastroenteritis and prevention of antibiotic associated diarrhea...
September 2017: Pediatric Gastroenterology, Hepatology & Nutrition
https://www.readbyqxmd.com/read/29025837/effects-of-lactobacillus-rhamnosus-gg-and-bifidobacterium-lactis-bb12-on-beta-cell-function-in-children-with-newly-diagnosed-type-1-diabetes-protocol-of-a-randomised-controlled-trial
#6
Lidia Groele, Hania Szajewska, Agnieszka Szypowska
INTRODUCTION: Recent evidence has demonstrated that, among other factors, dysbiosis (imbalances in the composition and function of the gut microbiota) may be relevant in the development of type 1 diabetes (T1D). Thus, gut microbiota may be a target for improving outcomes in subjects with T1D. The aim of the study is to examine the effects of Lactobacillus rhamnosus GG and Bifidobacterium lactis Bb12 on beta-cell function in children with newly diagnosed T1D. METHODS AND ANALYSIS: A total of 96 children aged 8 to 17 years with newly diagnosed T1D, confirmed by clinical history and the presence of at least one positive autoantibody, will be enrolled in a double-blind, randomised, placebo-controlled trial in which they will receive L...
October 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/29023454/antifungal-defense-of-probiotic-lactobacillus-rhamnosus-gg-is-mediated-by-blocking-adhesion-and-nutrient-depletion
#7
Daniela Mailänder-Sánchez, Christina Braunsdorf, Christian Grumaz, Christoph Müller, Stefan Lorenz, Philip Stevens, Jeanette Wagener, Betty Hebecker, Bernhard Hube, Franz Bracher, Kai Sohn, Martin Schaller
Candida albicans is an inhabitant of mucosal surfaces in healthy individuals but also the most common cause of fungal nosocomial blood stream infections, associated with high morbidity and mortality. As such life-threatening infections often disseminate from superficial mucosal infections we aimed to study the use of probiotic Lactobacillus rhamnosus GG (LGG) in prevention of mucosal C. albicans infections. Here, we demonstrate that LGG protects oral epithelial tissue from damage caused by C. albicans in our in vitro model of oral candidiasis...
2017: PloS One
https://www.readbyqxmd.com/read/29016685/lactobacillus-rhamnosus-pb01-dsm-14870-supplementation-affects-markers-of-sperm-kinematic-parameters-in-a-diet-induced-obesity-mice-model
#8
Fereshteh Dardmeh, Hiva Alipour, Parisa Gazerani, Gerhard van der Horst, Erik Brandsborg, Hans Ingolf Nielsen
Probiotics have been proposed as alternatives to pharmacological products in several medical conditions including the modulation of obesity, which is frequently associated with poor semen quality. However, effects of probiotics on male fertility have been less investigated. This study assessed the effect of Lactobacillus rhamnosus PB01 (DSM-14870) on sperm kinematic parameters in Normal-weight (NW) and diet-induced obese (DIO) models. NW and DIO C57BL/6NTac mice were divided into two subgroups with or without a single daily dose (1x109CFU) of L...
2017: PloS One
https://www.readbyqxmd.com/read/28993953/intestinal-toxicity-of-deoxynivalenol-is-limited-by-lactobacillus-rhamnosus-rc007-in-pig-jejunum-explants
#9
Gisela Romina García, Delphine Payros, Philippe Pinton, Cecilia Ana Dogi, Joëlle Laffitte, Manon Neves, María Laura González Pereyra, Lilia Renée Cavaglieri, Isabelle P Oswald
Probiotics have been explored to stimulate gut health in weaned pigs, when they started to consume solid diet where mycotoxins could be present. The aim of this study was to evaluate the effect of Lactobacillus rhamnosus RC007 on the intestinal toxicity of deoxynivalenol (DON) in an ex vivo model. Jejunal explants, obtained from 5-week-old crossbred castrated male piglets, were kept as control, exposed for 3 h to 10 μM DON, incubated for 4 h with 10(9) CFU/mL L. rhamnosus, or pre-incubated 1 h with 10(9) L...
October 9, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28986319/enhancing-the-viability-of-lactobacillus-rhamnosus-gg-after-spray-drying-and-during-storage
#10
Géraldine Broeckx, Dieter Vandenheuvel, Tim Henkens, Shari Kiekens, Marianne F L van den Broek, Sarah Lebeer, Filip Kiekens
Increasing knowledge about the human microbiome has led to a growing awareness of the potential of applying probiotics to improve our health. The pharmaceutical industry shows an emerging interest in pharmaceutical formulations containing these beneficial microbes, the so-called pharmabiotics. An important manufacturing step is the drying of the probiotics, as this can increase the stability and shelf life of the finished pharmabiotic product. Unfortunately, drying also puts stress on microbial cells, thus causing a decrease in viability...
October 3, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28983294/lipoteichoic-acid-of-probiotic-lactobacillus-plantarum-attenuates-poly-i-c-induced-il-8-production-in-porcine-intestinal-epithelial-cells
#11
Kyoung Whun Kim, Seok-Seong Kang, Sun-Je Woo, Ok-Jin Park, Ki Bum Ahn, Ki-Duk Song, Hak-Kyo Lee, Cheol-Heui Yun, Seung Hyun Han
Probiotics in livestock feed supplements are considered a replacement for antibiotics that enhance gastrointestinal immunity. Although bacterial cell wall components have been proposed to be associated with probiotic function, little evidence demonstrates that they are responsible for probiotic functions in livestock. The present study demonstrated that lipoteichoic acid (LTA) of Lactobacillus plantarum (Lp.LTA) confers anti-inflammatory responses in porcine intestinal epithelial cell line, IPEC-J2. A synthetic analog of viral double-stranded RNA, poly I:C, dose-dependently induced IL-8 production at the mRNA and protein levels in IPEC-J2 cells...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28978323/synergistic-oligodeoxynucleotide-strongly-promotes-cpg-induced-interleukin-6-production
#12
Shireen Nigar, Yoshinari Yamamoto, Takuma Okajima, Suguru Shigemori, Takashi Sato, Tasuku Ogita, Takeshi Shimosato
BACKGROUND: Bacterial genomes span a significant portion of diversity, reflecting their adaptation strategies; these strategies include nucleotide usage biases that affect chromosome configuration. Here, we explore an immuno-synergistic oligodeoxynucleotide (iSN-ODN, named iSN34), derived from Lactobacillus rhamnosus GG (LGG) genomic sequences, that exhibits a synergistic effect on immune response to CpG-induced immune activation. METHODS: The sequence of iSN34 was designed based on the genomic sequences of LGG...
October 4, 2017: BMC Immunology
https://www.readbyqxmd.com/read/28968517/probiotics-modulate-gut-microbiota-and-improve-insulin-sensitivity-in-dio-mice
#13
Renata A Bagarolli, Natália Tobar, Alexandre G Oliveira, Tiago G Araújo, Bruno M Carvalho, Guilherme Z Rocha, Juliana F Vecina, Kelly Calisto, Dioze Guadagnini, Patrícia O Prada, Andrey Santos, Sara T O Saad, Mario J A Saad
Obesity and type 2 diabetes are characterized by subclinical inflammatory process. Changes in composition or modulation of the gut microbiota may play an important role in the obesity-associated inflammatory process. In the current study, we evaluated the effects of probiotics (Lactobacillus rhamnosus, L. acidophilus and Bifidobacterium bifidumi) on gut microbiota, changes in permeability, and insulin sensitivity and signaling in high-fat diet and control animals. More importantly, we investigated the effects of these gut modulations on hypothalamic control of food intake, and insulin and leptin signaling...
August 26, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28965275/assessment-of-the-antifungal-activity-of-lactobacillus-and-pediococcus-spp-for-use-as-bioprotective-cultures-in-dairy-products
#14
Ines Lačanin, Jérôme Mounier, Audrey Pawtowski, Marta Dušková, Josef Kameník, Renáta Karpíšková
Fungi are commonly involved in dairy product spoilage and the use of bioprotective cultures can be a complementary approach to reduce food waste and economic losses. In this study, the antifungal activity of 89 Lactobacillus and 23 Pediococcus spp. isolates against three spoilage species, e.g., Yarrowia lipolytica, Rhodotorula mucilaginosa and Penicillium brevicompactum, was first evaluated in milk agar. None of the tested pediococci showed antifungal activity while 3, 23 and 43 lactobacilli isolates showed strong antifungal activity or total inhibition against Y...
September 30, 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28963009/in%C3%A2-vitro-characterization-of-lactobacillus-brevis-ku15006-an-isolate-from-kimchi-reveals-anti-adhesion-activity-against-foodborne-pathogens-and-antidiabetic-properties
#15
Sung-Ho Son, Hye-Lin Jeon, Seo-Jin Yang, Na-Kyoung Lee, Hyun-Dong Paik
This study aimed at evaluating the functional and probiotic properties of three lactic acid bacterial (LAB) strains isolated from kimchi. The selected LAB strains, which had potential probiotic functions, were identified by 16S rRNA sequence analysis as Lactobacillus brevis G1, L. brevis KU15006, and Lactobacillus curvatus KCCM 200173. All LAB strains were able to tolerate incubation at pH 2.5 with 0.3% pepsin for 3 h and with 0.3% Oxgall for 24 h and showed similar enzyme production levels, antimicrobial activities, and antibiotic susceptibilities...
September 28, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28959870/-construction-of-lactobacillus-rhamnosus-gg-particles-surface-display-system
#16
Runyu Su, Boyao Nie, Shengling Yuan, Haoxia Tao, Chunjie Liu, Bailiang Yang, Yanchun Wang
To describe a novel particles surface display system which is consisted of gram-positive enhancer matrix (GEM) particles and anchor proteins for bacteria-like particles vaccines, we treated Lactobacillus rhamnosus GG bacteria with 10% heated-TCA for preparing GEM particles, and then identified the harvested GEM particles by electron microscopy, RT-PCR and SDS-PAGE. Meanwhile, Escherichia coli was induced to express hybrid proteins PA3-EGFP and P60-EGFP, and GEM particles were incubated with them. Then binding of anchor proteins were determined by Western blotting, transmission electron microscopy, fluorescence microscopy and spectrofluorometry...
January 25, 2017: Sheng Wu Gong Cheng Xue Bao, Chinese Journal of Biotechnology
https://www.readbyqxmd.com/read/28952425/reduction-of-acrylamide-in-whole-wheat-bread-by-combining-lactobacilli-and-yeast-fermentation
#17
Behnaz Nasiri Esfahani, Mahdi Kadivar, Mohammad Shahedi, Sabihe Soleimanian-Zad
This study mainly focuses on a strategy for reducing acrylamide content in whole-wheat bread by combining lactobacilli and yeast in sourdough breadmaking. Combinations of sourdough (fermented dough using different Lactobacillus strains including Lactobacillus plantarum PTCC 1896 [probiotic], L. sakei DSM 20,017, L. rhamnosus DSM 20,021, and L. delbrueckii DSM 20,081) and yeast, in comparison with yeast alone, were used for breadmaking. The results showed that acrylamide levels in breads fermented using sourdough+yeast were in all cases much lower (6...
November 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28948960/remediation-of-intramacrophageal-shigella-dysenteriae-type-1-by-probiotic-lactobacilli-isolated-from-human-infants-stool-samples
#18
Radhika Trikha, Praveen Rishi, Rupinder Tewari
BACKGROUND & OBJECTIVES: Shigella dysenteriae is one of the most virulent pathogens causing bacillary dysentery and is responsible for high mortality in infants. To reduce the load of antibiotic therapy for treating shigellosis, this study was carried out to assess the ex vivo effect of novel probiotic lactobacilli, isolated from infant's stool samples, on killing S. dysenteriae type 1 residing in the rat macrophages. METHODS: Stool samples from infants were collected, processed for the isolation of lactobacilli and screened for the probiotic attributes (acid tolerance, bile tolerance, ability to adhere intestinal cells and anti-S...
May 2017: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28948579/effect-of-lactobacillus-rhamnosus-ncdc-298-with-fos-in-combination-on-viability-and-toxin-production-of-enterotoxigenic-escherichia-coli
#19
Santosh Anand, Surajit Mandal, Sudhir Kumar Tomar
The present study was to investigate the utilization of prebiotics by Lactobacillus rhamnosus NCDC 298 and its synergistic adversary effect on both population and production of heat-labile (LT) toxin in enterotoxigenic Escherichia coli (ETEC). To select suitable prebiotic in order to enhance functionality, its utilization and the prebiotic activity score was examined. Antivirulence effect on ETEC was inspected by its inactivation rate and heat-labile toxin production in presence of different synbiotic combination...
September 25, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28947466/randomised-controlled-trial-of-lactobacillus-rhamnosus-lgg-versus-placebo-in-children-presenting-to-the-emergency-department-with-acute-gastroenteritis-the-pecarn-probiotic-study-protocol
#20
David Schnadower, Phillip I Tarr, Casper T Charles, Marc H Gorelick, Michael J Dean, Karen J O'Connell, Prashant Mahajan, Thomas H Chun, Seema R Bhatt, Cindy G Roskind, Elizabeth C Powell, Alexander J Rogers, Cheryl Vance, Robert E Sapien, Feng Gao, Stephen B Freedman
INTRODUCTION: Acute gastroenteritis (AGE) is a common and burdensome condition that affects millions of children worldwide each year. Currently available strategies are limited to symptomatic management, treatment and prevention of dehydration and infection control; no disease-modifying interventions exist. Probiotics, defined as live microorganisms beneficial to the host, have shown promise in improving AGE outcomes, but existing studies have sufficient limitations such that the use of probiotics cannot currently be recommended with confidence...
September 24, 2017: BMJ Open
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