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Beneficial Microbes

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https://www.readbyqxmd.com/read/29124969/the-gut-mycobiome-composition-is-linked-to-carotid-atherosclerosis
#1
M R Chacón, J Lozano-Bartolomé, M Portero-Otín, M M Rodríguez, G Xifra, J Puig, G Blasco, W Ricart, F J Chaves, J M Fernández-Real
The mycobiotic component of the microbiota comprises an integral, yet under-researched, part of the gastrointestinal tract. Here, we present a preliminary study of the possible contribution of gut mycobiota to sub-clinical atherosclerosis in a well-characterised group of obese and non-obese subjects in association with the Framingham Risk Score (FRS) and carotid intima-media thickness (cIMT). From all taxa identified, the relative abundance of the phylum Zygomycota, comprising the family Mucoraceae and genus Mucor, was negatively associated with cIMT and this association remained significant after controlling for false discovery rate...
November 10, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29124968/probiotic-bacteria-cell-walls-stimulate-the-activity-of-the-intestinal-epithelial-cells-and-macrophage-functionality
#2
J M Lemme-Dumit, M A Polti, G Perdigón, C Maldonado Galdeano
The effect of oral administration of probiotic bacteria cell walls (PBCWs) in the stimulation of the immune system in healthy BALB/c mice was evaluated. We focused our investigation mainly on intestinal epithelial cells (IECs) which are essential for coordinating an adequate mucosal immune response and on the functionality of macrophages. The probiotic bacteria and their cell walls were able to stimulate the IECs exhibiting an important activation and cytokine releases. Supplementation with PBCWs promoted macrophage activation from peritoneum and spleen, indicating that the PBCWs oral administration was able to improve the functionality of the macrophages...
November 10, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29124967/inhibitory-effect-of-biofilm-forming-lactobacillus-kunkeei-strains-against-virulent-pseudomonas-aeruginosa-in-vitro-and-in-honeycomb-moth-galleria-mellonella-infection-model
#3
P Berríos, J A Fuentes, D Salas, A Carreño, P Aldea, F Fernández, A N Trombert
Biofilms correspond to complex communities of microorganisms embedded in an extracellular polymeric matrix. Biofilm lifestyle predominates in Pseudomonas aeruginosa, an opportunistic Gram negative pathogen responsible for a wide spectrum of infections in humans, plants and animals. In this context, anti-biofilm can be considered a key strategy to control P. aeruginosa infections, thereby more research in the field is required. On the other hand, Lactobacillus species have been described as beneficial due to their anti-biofilm properties and their consequent effect against a wide spectrum of pathogens...
November 10, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29065710/effect-of-a-yoghurt-drink-containing-lactobacillus-strains-on-bacterial-vaginosis-in-women-a-double-blind-randomised-controlled-clinical-pilot-trial
#4
C Laue, E Papazova, A Liesegang, A Pannenbeckers, P Arendarski, B Linnerth, K J Domig, W Kneifel, L Petricevic, J Schrezenmeir
Bacterial vaginosis (BV) is characterised by a depletion of lactobacilli in favour of an overgrowth of anaerobic bacteria. It is associated with increased risk for urogenital infections and abortion. In this study we assessed the effect of a yoghurt drink containing Lactobacillus strains on BV. The strains had been isolated from healthy pregnant women and selected for acidification capacity, production of H2O2, glycogen utilisation, bile salt tolerance and inhibition of pathogens. Using Amsel criteria BV was diagnosed in 36 women aged ≥18 years with stable menstrual cycle or menopause...
October 25, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29065709/direct-effects-of-fermented-cow-s-milk-product-with-lactobacillus-paracasei-cba-l74-on-human-enterocytes
#5
L Paparo, R Aitoro, R Nocerino, C Fierro, C Bruno, R Berni Canani
Cow's milk fermented with Lactobacillus paracasei CBA L74 (FM-CBAL74) exerts a preventive effect against infectious diseases in children. We evaluated if this effect is at least in part related to a direct modulation of non-immune and immune defence mechanisms in human enterocytes. Human enterocytes (Caco-2) were stimulated for 48 h with FM-CBAL74 at different concentrations. Cell growth was assessed by colorimetric assay; cell differentiation (assessed by lactase expression), tight junction proteins (zonula occludens1 and occludin), mucin 2, and toll-like receptor (TRL) pathways were analysed by real-time PCR; innate immunity peptide synthesis, beta-defensin-2 (HBD-2) and cathelicidin (LL-37) were evaluated by ELISA...
October 25, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29065708/intracellular-gsh-of-streptococcus-thermophilus-shows-anti-oxidative-activity-against-low-density-lipoprotein-oxidation-in-vitro-and-in-a-hyperlipidaemic-hamster-model
#6
S Kusuhara, M Ito, T Sato, W Yokoi, Y Yamamoto, K Harada, H Ikemura, K Miyazaki
Streptococcus thermophilus YIT 2001 (ST-1), a lactic acid bacterial strain, was shown to have inhibitory effects on the oxidation of low-density lipoprotein (LDL) and the development of aortic fatty lesions in an animal model, and lower the serum levels of malondialdehyde-modified LDL, an oxidative modification product of LDL, in a clinical trial. This study aimed to identify the intracellular active component of ST-1 associated with anti-oxidative activity against LDL oxidation. High-performance liquid chromatography-electrospray ionisation mass spectrometry analysis after fractionation of the cellular extract by reversed-phase chromatography demonstrated that the active fraction contained reduced glutathione (GSH)...
October 25, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29065707/bifidobacterium-longum-bb536-alleviated-upper-respiratory-illnesses-and-modulated-gut-microbiota-profiles-in-malaysian-pre-school-children
#7
A S-Y Lau, N Yanagisawa, Y-Y Hor, L-C Lew, J-S Ong, L-O Chuah, Y-Y Lee, S-B Choi, F Rashid, N Wahid, H Sugahara, J-Z Xiao, M-T Liong
This 10-months randomised, double-blind, parallel and placebo-controlled study evaluated the effects of Bifidobacterium longum BB536 on diarrhoea and/or upper respiratory illnesses in 520 healthy Malaysian pre-school children aged 2-6 years old. The subjects randomly received a one-gram sachet containing either BB536 (5×109 cfu) or placebo daily. Data analysis was performed on 219 subjects who fully complied over 10-months (placebo n=110, BB536 n=109). While BB536 did not exert significant effects against diarrhoea in children, Poisson regression with generalised estimating equations model indicated significant intergroup difference in the mean number of times of respiratory illnesses over 10 months...
October 25, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29065706/bacteriocin-biosynthesis-contributes-to-the-anti-inflammatory-capacities-of-probiotic-lactobacillus-plantarum
#8
X Yin, D Heeney, Y Srisengfa, B Golomb, S Griffey, M Marco
Plantaricin EF (PlnEF) is a class IIb bacteriocin produced by Lactobacillus plantarum. We compared L. plantarum NCIMB8826 and LM0419, a plnEFI deletion mutant of that strain lacking plnEF and the gene for the cognate immunity protein plnI, in a 2,4,6-trinitrobenzenesulfonic acid (TNBS) induced mouse model of acute inflammatory bowel disease. Mice fed either L. plantarum NCIMB8826 or LM0419 were not protected against TNBS according to either disease activity or histology (Ameho) scores. Mice consuming NCIMB8826 exhibited intermediate (non-significant) levels of colonic tumour necrosis factor alpha (TNF-α) and interleukin-6 (IL-6) that ranged between the TNBS-treated animals and healthy controls...
October 25, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29065705/effects-of-a-probiotic-slab51%C3%A2-on-clinical-and-histologic-variables-and-microbiota-of-cats-with-chronic-constipation-megacolon-a-pilot-study
#9
G Rossi, A Jergens, M Cerquetella, S Berardi, E Di Cicco, G Bassotti, G Pengo, J S Suchodolski
Chronic constipation (CC) and idiopathic megacolon (IMC) occur frequently in cats. The aim of the study was to investigate the effects of a multi-strain probiotic (SLAB51™) in constipated cats (n=7) and in patients with megacolon and constipation (n=3). Ten pet cats with a diagnosis of chronic constipation, non-responsive to medical management received orally 2×10(11) bacteria daily for 90 days. For microbiota analysis, selected bacterial groups were analysed by qPCR. Histological samples in megacolons were evaluated for interstitial cells of Cajal (ICC), enteric neurons, and neuronal apoptosis...
October 25, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29022390/randomised-double-blind-placebo-controlled-trial-on-lactobacillus-reuteri-dsm-17938-improvement-in-symptoms-and-bowel-habit-in-functional-constipation
#10
G Riezzo, A Orlando, B D'Attoma, M Linsalata, M Martulli, F Russo
Dysbiosis may contribute to constipation and its symptoms, therefore probiotic administration could improve significantly gut health and functions. The aim of the study was to investigate the effects of a long-lasting administration of Lactobacillus reuteri DSM 17938 (LR DSM 17938) on symptoms and quality of life (QoL) score in patients with functional constipation (FC). 56 FC patients with normal colonic transit time and without anorectal disorders and pelvic floor dysfunctions completed the study. LR DSM 17938 was administered for 105 days in a randomised double-blind clinical trial (28 patients per arm)...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29022389/the-composition-and-metabolism-of-faecal-microbiota-is-specifically-modulated-by-different-dietary-polysaccharides-and-mucin-an-isothermal-microcalorimetry-study
#11
K Adamberg, K Kolk, M Jaagura, R Vilu, S Adamberg
The metabolic activity of colon microbiota is specifically affected by fibres with various monomer compositions, degree of polymerisation and branching. The supply of a variety of dietary fibres assures the diversity of gut microbial communities considered important for the well-being of the host. The aim of this study was to compare the impact of different oligo- and polysaccharides (galacto- and fructooligosaccharides, resistant starch, levan, inulin, arabinogalactan, xylan, pectin and chitin), and a glycoprotein mucin on the growth and metabolism of faecal microbiota in vitro by using isothermal microcalorimetry (IMC)...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29022388/our-gut-microbiota-a-long-walk-to-homeostasis
#12
L M T Dicks, J Geldenhuys, L S Mikkelsen, E Brandsborg, H Marcotte
The microbiome of the human gastrointestinal tract (GIT) consists of billions of bacteria, fungi and viruses, of which bacteria play the most important role in nutrition, immune development, production of vitamins and maintaining a well-balanced (homeostatic) microbial population. Many papers have been published on the microbiota in the human GIT, but little is known about the first group of bacteria that colonises an infant. The intestinal tract of an unborn is, despite general belief, not sterile, but contains bacteria that have been transferred from the mother...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29022387/lactobacillus-plantarum-is-10506-supplementation-reduced-scorad-in-children-with-atopic-dermatitis
#13
C R S Prakoeswa, N Herwanto, R Prameswari, L Astari, S Sawitri, A N Hidayati, D M Indramaya, E R Kusumowidagdo, I S Surono
Lactobacillus plantarum IS-10506 is a novel probiotic isolated from dadih, an Indonesian traditional fermented buffalo milk. It's in vitro and in vivo probiotic properties have been assessed. Probiotic function has been shown in vivo by the suppression of allergic reactions in BALB/c mice through the action of T-regulatory cells cytokines by balancing Th1 and Th2 immune response. Atopic dermatitis (AD) is a chronic recurrent inflammatory skin disease characterised by the imbalance of Th1 and Th2. The aim of the study was to assess the probiotic function of L...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29022386/bacillus-toyonensis-improves-immune-response-in-the-mice-vaccinated-with-recombinant-antigen-of-bovine-herpesvirus-type-5
#14
F D S Santos, Y A Menegon, R E A Piraine, P R C Rodrigues, R C Cunha, F P Leivas Leite
Probiotics modulate the immune response and can increase the effectiveness of vaccines. Bacillus toyonensis is widely used as a probiotic in animal feed. The aim of this study was to assess the effects of B. toyonensis administration on the immune response to an experimental recombinant vaccine against bovine herpesvirus type 5 (BoHV-5) in mice. Mice were vaccinated with BoHV-5 recombinant glycoprotein D and supplemented with the probiotic B. toyonensis in two regimes: one group received the probiotic only during seven days prior to the initial vaccination while the second group was given the probiotic throughout the experimental period of seven weeks...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29022385/effect-of-antibiotic-probiotic-and-human-rotavirus-infection-on-colonisation-dynamics-of-defined-commensal-microbiota-in-a-gnotobiotic-pig-model
#15
H-C Huang, A N Vlasova, A Kumar, S Kandasamy, D D Fischer, L Deblais, F C Paim, S N Langel, M A Alhamo, A Rauf, L Shao, L J Saif, G Rajashekara
We developed a gnotobiotic (Gn) pig model colonised with defined commensal microbiota (DMF) to provide a simplified and controlled system to study the interactions between intestinal commensals, antibiotics (ciprofloxacin, CIP), probiotics (Escherichia coli Nissle 1917, EcN) and virulent human rotavirus (VirHRV). The DMF included seven gut commensal species of porcine origin that mimic the predominant species in the infant gut. Gn piglets were divided into four groups: DMF control (non-treated), DMF+CIP (CIP treated), DMF+CIP+EcN (CIP/EcN treated), DMF+EcN (EcN treated) and inoculated orally with 10(5) cfu of each DMF strain...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29022384/does-the-maternal-vaginal-microbiota-play-a-role-in-seeding-the-microbiota-of-neonatal-gut-and-nose
#16
O Sakwinska, F Foata, B Berger, H Brüssow, S Combremont, A Mercenier, S Dogra, S-E Soh, J C K Yen, G Y S Heong, Y S Lee, F Yap, M J Meaney, Y-S Chong, K M Godfrey, J D Holbrook
The acquisition and early maturation of infant microbiota is not well understood despite its likely influence on later health. We investigated the contribution of the maternal microbiota to the microbiota of infant gut and nose in the context of mode of delivery and feeding. Using 16S rRNA sequencing and specific qPCR, we profiled microbiota of 42 mother-infant pairs from the GUSTO birth cohort, at body sites including maternal vagina, rectum and skin; and infant stool and nose. In our study, overlap between maternal vaginal microbiota and infant faecal microbiota was minimal, while the similarity between maternal rectal microbiota and infant microbiota was more pronounced...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29022383/ratio-of-klebsiella-bifidobacterium-in-early-life-correlates-with-later-development-of-paediatric-allergy
#17
J S Y Low, S-E Soh, Y K Lee, K Y C Kwek, J D Holbrook, E M Van der Beek, L P Shek, A E N Goh, O H Teoh, K M Godfrey, Y-S Chong, J Knol, C Lay
Several studies have reported that intestinal microbial colonisation patterns differ between non-allergic and allergic infants. However, the microbial signature underlying the pathogenesis of allergies remains unclear. We aim to gain insight into the development of the intestinal microbiota of healthy infants and infants who develop allergy in early life, and identify potential microbiota biomarkers of later allergic disease. Using a case-control design in a Chinese sub-cohort of a Singaporean birth cohort (GUSTO), we utilised 16S rRNA gene sequencing to assess intestinal microbial composition and diversity of 21 allergic and 18 healthy infants at 3 weeks, 3 months and 6 months of age, and correlated the microbiota with allergy at ages 18 and 36 months...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29022382/opposing-effect-of-lactobacillus-on-in-vitro-klebsiella-pneumoniae-in-biofilm-and-in-an-in-vivo-intestinal-colonisation-model
#18
R Lagrafeuille, S Miquel, D Balestrino, M Vareille-Delarbre, F Chain, P Langella, C Forestier
Beneficial bacteria represent potential sources of therapy, particularly in the battle against antibiotic-resistant pathogens. The Gram-negative bacillus Klebsiella pneumoniae is not only a paradigm of multi-resistant opportunistic pathogen, but it is also able to colonise the human intestine and displays a high capacity to form biofilm. In this study, the anti-biofilm activity of 140 neutralised Lactobacillus supernatants was assessed against K. pneumoniae. Among the 13 strains whose supernatant significantly impaired biofilm formation, Lactobacillus plantarum CIRM653 was selected because it was also able to impair K...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/29022381/effects-of-probiotic-bacteria-on-mucosal-polyamines-levels-in-dogs-with-ibd-and-colonic-polyps-a-preliminary-study
#19
G Rossi, M Cerquetella, S Scarpona, G Pengo, K Fettucciari, G Bassotti, A E Jergens, J S Suchodolski
Spermine (SPM) and its precursor putrescine (PUT), regulated by ornithine decarboxylase (ODC) and diamino-oxidase (DAO), are polyamines required for cell growth and proliferation. Only a few studies have investigated the anti-inflammatory and tumour inhibitory properties of probiotics on mucosal polyamine levels. We investigated the effects of a high concentration multistrain probiotic for human use on colonic polyamine biosynthesis in dogs. Histological sections (inflammatory bowel disease, n=10; polyposis, n=5) were assessed after receiving 112 to 225×10(9) lyophilised bacteria daily for 60 days at baseline (T0) and 30 days after treatment end (T90)...
October 12, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28969447/beneficial-effects-of-a-probiotic-blend-on-gastrointestinal-side-effects-induced-by-leflunomide-and-amlodipine-in-a-rat-model
#20
S-C Song, Y-M An, J-H Shin, M-J Chung, J-G Seo, E Kim
Patients with metabolic disorders frequently suffer from side effects induced by long-term oral medications. The present study using a rat model system indicated that leflunomide (LF) and amlodipine (AMD), the active ingredients contained in the medications for rheumatoid arthritis and hypertension, respectively, appeared to induce various bowel problems including constipation and inflammation. In the small and large intestine, LF increased the expression of tumour necrosis factor (TNF)-α, interleukin (IL)-1β, and IL-6 compared to the null control and AMD increased the expression of both TNF-α and IL-1β, although its effect on IL-6 was only increased in the large intestine...
October 3, 2017: Beneficial Microbes
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