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Lactobacillus reuteri

Fahime Mohammadi, Morteza Eshaghi, Shabnam Razavi, Davood Darban Sarokhalil, Malihe Talebi, Mohammad Reza Pourshafie
The purpose of the present study was to isolate Lactobacillus bacteria from mother's milk and to assess their probiotic potential. Sixty breast milk samples were collected from the volunteered mothers aged from 19-35 and from rural areas of Lorestan and Markazi Provinces, Iran. At first, 970 bacill-shaped bacterial colonies were isolated from these samples and stored in proper condition. Two hundred isolates were randomly selected and investigated for their ability to tolerate acidic condition and to tolerate bile salt as well...
March 15, 2018: Microbial Pathogenesis
Dubravka Novotni, Ivna Vrana Špoljarić, Saša Drakula, Nikolina Čukelj, Bojana Voučko, Mario Ščetar, Kata Galić, Duška Ćurić
Driven by the bakery industry urge to satisfy consumer demand for fresh, diverse and high quality bakery products, we investigated the influence of barley sourdough and vacuum cooling on shelf life quality of partially baked bread stored in modified atmosphere packaging at ambient conditions. Barley sourdough was fermented with Lactobacillus reuteri (DSM 20016, F275). Partially baked bread with sourdough was microbiologically acceptable during 30 days of storage, while bread without sourdough had detectable mould on the 30th day...
December 2017: Food Technology and Biotechnology
Saannya Sequeira, Devon Kavanaugh, Donald A MacKenzie, Tanja Šuligoj, Samuel Walpole, Charlotte Leclaire, A Patrick Gunning, Dimitrios Latousakis, William G T Willats, Jesus Angulo, Changjiang Dong, Nathalie Juge
Lactobacillus reuteri , a Gram-positive bacterial species inhabiting the gastrointestinal tract of vertebrates, displays remarkable host adaptation. Previous mutational analyses of rodent strain L. reuteri 100-23C identified a gene encoding a predicted surface-exposed serine-rich repeat protein (SRRP100-23 ) that was vital for L. reuteri biofilm formation in mice. SRRPs have emerged as an important group of surface proteins on many pathogens, but no structural information is available in commensal bacteria...
March 5, 2018: Proceedings of the National Academy of Sciences of the United States of America
Xin Zhao, Michael G Gänzle
Lactobacilli derive metabolic energy mainly from carbohydrate fermentation. Homofermentative and heterofermentative lactobacilli exhibit characteristic differences in carbohydrate transport and regulation of metabolism, however, enzymes for carbohydrate transport in heterofermentative lactobacilli are poorly characterized. This study aimed to identify carbohydrate active enzymes in the L. reuteri strains LTH2584, LTH5448, TMW1.656, TMW1.112, 100-23, mlc3, and lpuph by phenotypic analysis and comparative genomics...
February 27, 2018: International Journal of Food Microbiology
Qihang Hou, Lulu Ye, Haofei Liu, Lulu Huang, Qian Yang, J R Turner, Qinghua Yu
The regeneration of intestinal epithelial are maintained by continuous differentiation and proliferation of intestinal stem cells (ISCs) under physiological and pathological conditions. However, little is known about the regulatory effect of intestinal microbiota on its recovery ability to repair damaged mucosal barrier. In this study, we established intestinal organoids and lamina propria lymphocytes (LPLs) co-cultured system, plus mice experiments, to explore the protective effect of Lactobacillus reuteri D8 on integrity of intestinal mucosa...
February 19, 2018: Cell Death and Differentiation
Nam Su Oh, Jae Yeon Joung, Ji Young Lee, Younghoon Kim
A total of 22 Lactobacillus strains, which were isolated from infant feces were evaluated for their probiotic potential along with resistance to low pH and bile salts. Eight isolates (L. reuteri 3M02 and 3M03, L. gasseri 4M13, 4R22, 5R01, 5R02, and 5R13, and L. rhamnosus 4B15) with high tolerance to acid and bile salts, and ability to adhere to the intestine were screened from 22 strains. Further, functional properties of 8 Lactobacillus strains, such as anti-oxidation, inhibition of α-glucosidase activity, cholesterol-lowering, and anti-inflammation were evaluated...
2018: PloS One
Dawei Ni, Wei Xu, Yuxiang Bai, Wenli Zhang, Tao Zhang, Wanmeng Mu
Levan, a versatile fructan, possesses promising prospects for application in the food and pharmaceutical industries and in many other fields due to the superior physicochemical properties and physiological functions of this fructan. In this study, a thermostable levansucrase was identified from Lactobacillus reuteri LTH5448. This enzyme shared higher identity with reported inulosucrases than levansucrases but, unexpectedly, yielded a levan-type fructan. Structural analysis of the produced polysaccharide revealed that the glycosidic bonds were β-(2, 6) linkages, and the average molecular weight was 3...
February 6, 2018: International Journal of Biological Macromolecules
Yasushi Yokota, Ayane Shikano, Takashi Kuda, Moemi Takei, Hajime Takahashi, Bon Kimura
To clarify the different effects of live and heat-killed probiotics on inflammatory bowel disease (IBD), the anti-inflammatory and protective effects of Lactobacillus plantarum AN1 cells isolated from the fermented fish aji-narezushi on murine macrophage RAW264.7 cells and in ICR mice with dextran sodium sulphate (DSS)-induced IBD were determined. L. plantarum AN1 cells showed anti-inflammatory activities in vitro, indicated by secretion of nitric oxide (NO) from RAW264.7 cells in the presence and absence of Escherichia coli 0111 lipopolysaccharide (LPS)...
January 23, 2018: International Immunopharmacology
Barbara Speranza, Daniela Campaniello, Noemi Monacis, Antonio Bevilacqua, Milena Sinigaglia, Maria Rosaria Corbo
The aim of this study was to develop a functional fresh cream cheese with Bifidobacterium animalis subsp. lactis DSM 10140 or Lactobacillus reuteri DSM 20016 and prebiotics (inulin, FOS and lactulose). The research was divided into two steps: in vitro evaluation of the effects of prebiotic compounds; validation at laboratory level with production of functional cream mini-cheeses. Prebiotics showed a protective effect: B. animalis subsp. lactis DSM 10140 cultivability on Petri dishes was positively influenced by lactulose, whereas fructooligosaccharides (FOS) were the prebiotic compounds able to prolong Lb...
June 2018: Food Microbiology
Pedro Gutiérrez-Castrellón, Flavia Indrio, Alexis Bolio-Galvis, Carlos Jiménez-Gutiérrez, Irma Jimenez-Escobar, Gabriel López-Velázquez
BACKGROUND: 5% to 40% of infants cry excessively, usually accompanied by fussiness and excessive of gas. There are no uniform criteria for treatment of infantile colic. Lactobacillus reuteri DSM 17938 has been used with promising results. The objective of this network-meta-analysis (NMA) is to compare the efficacy of L reuteri DSM 17938 with other interventions for infantile colic. METHODS: RCTs, published between 1960 and 2015 for the treatment of infantile colic were included...
December 2017: Medicine (Baltimore)
(no author information available yet)
No abstract text is available yet for this article.
January 2018: Medicine (Baltimore)
Shokoufeh Karimi, Hans Jonsson, Torbjörn Lundh, Stefan Roos
Lactobacillus reuteri is an inhabitant of the gastrointestinal (GI) tract of mammals and birds and several strains of this species are known to be effective probiotics. The mechanisms by which L. reuteri confers its health-promoting effects are far from being fully understood, but protection of the mucosal barrier is thought to be important. Leaky gut is a state of abnormal intestinal permeability with implications for the pathophysiology of various gastrointestinal disorders. Enterotoxigenic Escherichia coli (ETEC) can invade the intestinal mucosa and induce changes in barrier function by producing enterotoxin or by direct invasion of the intestinal epithelium...
January 2018: Physiological Reports
Evelien M Te Poele, Tim Devlamynck, Manuel Jäger, Gerrit J Gerwig, Davy Van de Walle, Koen Dewettinck, Anna K H Hirsch, Johannis P Kamerling, Wim Soetaert, Lubbert Dijkhuizen
Steviol glycosides from the leaves of the plant Stevia rebaudiana are high-potency natural sweeteners but suffer from a lingering bitterness. The Lactobacillus reuteri 180 wild-type glucansucrase Gtf180-ΔN, and in particular its Q1140E-mutant, efficiently α-glucosylated rebaudioside A (RebA), using sucrose as donor substrate. Structural analysis of the products by MALDI-TOF mass spectrometry, methylation analysis and NMR spectroscopy showed that both enzymes exclusively glucosylate the Glc(β1→C-19 residue of RebA, with the initial formation of an (α1→6) linkage...
January 24, 2018: Scientific Reports
M Galofré, D Palao, M Vicario, J Nart, D Violant
BACKGROUND AND OBJECTIVE: Oral probiotics appear to improve the treatment of periodontal diseases but there is limited evidence on their efficacy in the treatment of peri-implant diseases. The objective of the present study was to evaluate, clinically and microbiologically, the effect of the oral probiotic, Lactobacillus reuteri Prodentis, as adjuvant to non-surgical mechanical therapy in implants with mucositis or peri-implantitis, placed in patients with a history of periodontal disease...
January 19, 2018: Journal of Periodontal Research
Li-Han Chen, Yi-Hsing Chen, Kuan-Chen Cheng, Ting-Yi Chien, Ching-Hung Chan, Shu-Ping Tsao, Hui-Yu Huang
Obesity is a serious and costly issue to the medical welfare worldwide. Probiotics have been suggested as one of the candidates to resolve the obesity-associated problems, but how they combat obesity is not fully understood. Herein, we investigated the effects of Lactobacillus reuteri 263 (L. reuteri 263) on antiobesity using four groups of Sprague-Dawley rats (n=10/group), namely, C (normal diet with vehicle treatment), HE [high-energy diet (HED) with vehicle treatment], 1X (HED with 2.1×109 CFU/kg/day of L...
November 16, 2017: Journal of Nutritional Biochemistry
Reham Wasfi, Ola A Abd El-Rahman, Mai M Zafer, Hossam M Ashour
Streptococcus mutans contributes significantly to dental caries, which arises from homoeostasic imbalance between host and microbiota. We hypothesized that Lactobacillus sp. inhibits growth, biofilm formation and gene expression of Streptococcus mutans. Antibacterial (agar diffusion method) and antibiofilm (crystal violet assay) characteristics of probiotic Lacobacillus sp. against Streptococcus mutans (ATCC 25175) were evaluated. We investigated whether Lacobacillus casei (ATCC 393), Lactobacillus reuteri (ATCC 23272), Lactobacillus plantarum (ATCC 14917) or Lactobacillus salivarius (ATCC 11741) inhibit expression of Streptococcus mutans genes involved in biofilm formation, quorum sensing or stress survival using quantitative real-time polymerase chain reaction (qPCR)...
January 8, 2018: Journal of Cellular and Molecular Medicine
Sib Sankar Giri, Jin Woo Jun, Saekil Yun, Hyoun Joong Kim, Sang Guen Kim, Jeong Woo Kang, Sang Wha Kim, Se Jin Han, Se Chang Park, V Sukumaran
The present study was conducted to isolate and characterise Pb-resistant lactic acid bacteria (LAB), and thus determine their potential for use as probiotics against Pb toxicity. A total of 107 Pb-resistant LAB strains were isolated from the gut content of Cyprinus carpio, of which 41 were established to be gram-positive and catalase-negative. Investigation of the Pb-binding ability of these isolated LAB identified seven strains (P2, P6, P7, P9, P16, P19 and P22) with comparatively high Pb-binding activities...
December 28, 2017: Probiotics and Antimicrobial Proteins
Valerie Sung, Frank D'Amico, Michael D Cabana, Kim Chau, Gideon Koren, Francesco Savino, Hania Szajewska, Girish Deshpande, Christophe Dupont, Flavia Indrio, Silja Mentula, Anna Partty, Daniel Tancredi
CONTEXT: Lactobacillus reuteri DSM17938 has shown promise in managing colic, but conflicting study results have prevented a consensus on whether it is truly effective. OBJECTIVE: Through an individual participant data meta-analysis, we sought to definitively determine if L reuteri DSM17938 effectively reduces crying and/or fussing time in infants with colic and whether effects vary by feeding type. DATA SOURCES: We searched online databases (PubMed, Medline, Embase, the Cumulative Index to Nursing and Allied Health Literature, the Database of Abstracts of Reviews of Effects, and Cochrane), e-abstracts, and clinical trial registries...
January 2018: Pediatrics
Santosh Kumar Mishra, R K Malik, Harsh Panwar, Amit Kumar Barui
The aim of this study was to microencapsulate the reuterin produced by Lactobacillus reuteri BPL-36 strain for its long-term efficacy against food-borne pathogen Listeria monocytogenes. Lactobacillus reuteri BPL-36 strain previously isolated from a human infant fecal sample in lab was selected for the present study based on its ability to produce reuterin. The organism displayed a broad-spectrum antimicrobial activity. Reuterin concentration of 89.63 mM was obtained in the MRS-glycerol medium after 16 h incubation at 37 °C...
January 2018: 3 Biotech
Donald Cameron, Quak Seng Hock, Musal Kadim, Neelam Mohan, Eell Ryoo, Bhupinder Sandhu, Yuichiro Yamashiro, Chen Jie, Hans Hoekstra, Alfredo Guarino
Recommendations for probiotics are available in several regions. This paper proposes recommendations for probiotics in pediatric gastrointestinal diseases in the Asia-Pacific region. Epidemiology and clinical patterns of intestinal diseases in Asia-Pacific countries were discussed. Evidence-based recommendations and randomized controlled trials in the region were revised. Cultural aspects, health management issues and economic factors were also considered. Final recommendations were approved by applying the Likert scale and rated using the GRADE system...
December 7, 2017: World Journal of Gastroenterology: WJG
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