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https://www.readbyqxmd.com/read/28429209/analysis-of-gut-microbiota-in-patients-with-parkinson-s-disease
#1
V A Petrov, I V Saltykova, I A Zhukova, V M Alifirova, N G Zhukova, Yu B Dorofeeva, A V Tyakht, B A Kovarsky, D G Alekseev, E S Kostryukova, Yu S Mironova, O P Izhboldina, M A Nikitina, T V Perevozchikova, E A Fait, V V Babenko, M T Vakhitova, V M Govorun, A E Sazonov
Gut microbiota of patients with Parkinson's disease and healthy volunteers was analyzed by the method of high throughput 16S rRNA sequencing of bacterial genomes. In patients with Parkinson's diseases, changes in the content of 9 genera and 15 species of microorganisms were revealed: reduced content of Dorea, Bacteroides, Prevotella, Faecalibacterium, Bacteroides massiliensis, Stoquefichus massiliensis, Bacteroides coprocola, Blautia glucerasea, Dorea longicatena, Bacteroides dorei, Bacteroides plebeus, Prevotella copri, Coprococcus eutactus, and Ruminococcus callidus, and increased content of Christensenella, Catabacter, Lactobacillus, Oscillospira, Bifidobacterium, Christensenella minuta, Catabacter hongkongensis, Lactobacillus mucosae, Ruminococcus bromii, and Papillibacter cinnamivorans...
April 20, 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28426168/walking-a-fine-line-with-sucrose-phosphorylase-efficient-single-step-biocatalytic-production-of-l-ascorbic-acid-2-glucoside-from-sucrose
#2
Rama Krishna Gudiminchi, Bernd Nidetzky
The 2-O-α-D-glucoside of L-ascorbic acid (AA-2G) is a highly stabilized form of vitamin C, with important applications in cosmetics, foods and pharmaceuticals. Sucrose would be an ideal substrate for AA-2G synthesis, but it cannot be used lacking a suitable transglycosidase. We show that in a narrow pH window with sharp optimum at pH 5.2, select sucrose phosphorylases catalyzed 2-O-α-glucosylation of L-ascorbic acid from sucrose with high efficiency and perfect site-selectivity. Optimized synthesis with the enzyme from Bifidobacterium longum at 40°C gave a concentrated product solution (155 g/L; 460 mM) from which pure AA-2G was recovered in ∼50% overall yield, so providing the basis for an advanced production process...
April 20, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28425267/modifications-of-mice-gut-microflora-following-oral-consumption-oflactobacillus-acidophilus-and-bifidobacterium-bifidum-probiotics
#3
Hossein Khavari-Daneshvar, Maryam Mosavi, Hamid Khodayari, Ebrahim Rahimi, Peyman Ranji, Amir Hossein Mohseni, Reyhaneh Mahmudian, Farzad Shidfar, Shahram Agah, Ali Mohammad Alizadeh
BACKGROUND/AIM: Thirty male BALB/c mice were equally divided into three groups: control, L. acidophilus, and B. bifidum for the assessment of the probiotics' stability in the gut microflora. MATERIALS AND METHODS: First, the gut microflora of the mice was checked every 3 days (days 3, 6, 9, and 12) without probiotic consumption, and then the mice were daily given orally 1.5 g of probiotics in 30 cc of drinking water. The consumption of probiotics was then stopped for recovery and then the consumption continued for 5 months...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28424690/bacillus-subtilis-improves-immunity-and-disease-resistance-in-rabbits
#4
Mengjiao Guo, Fahao Wu, Guangen Hao, Qin Qi, Rong Li, Ning Li, Liangmeng Wei, Tongjie Chai
Probiotics such as Lactobacillus and Bifidobacterium have been successfully used to promote growth and prevent diseases. Previous reports have demonstrated that Bacillus subtilis (B. subtilis) was a potential probiotic for animals. In this research, 180 B. subtilis were isolated from the soil, identified, and investigated in vitro. Furthermore, five B. subtilis were selected and mixed to investigate their effect on growth performance, immune response, intestine microbiota, and disease resistance in rabbits...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28420276/the-influence-of-maternal-vaginal-flora-on-the-intestinal-colonization-in-newborns-and-3-month-old-infants
#5
Iwona Gabriel, Anita Olejek, Krystyna Stencel-Gabriel, Miroslaw Wielgoś
The role of maternal vaginal bacteria on the colonization of neonatal gut is still matter of discussion. Our aim was estimate the role of maternal vaginal flora on the development of intestinal flora in neonates and 3- months-old infants. 79 maternal-neonatal pairs were included in the study. Vaginal swabs were taken before the rupture of membranes after admission to the delivery ward. First neonatal stool (meconium) and stool at 3-months-old infants were collected and cultured. All samples were subject to a microbiological analysis for Streptococcus, Staphylococcus, Bifidobacterium, Clostridium (including Cl...
April 18, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28417292/probiotic-strawberry-yogurts-microbiological-chemical-and-sensory-properties
#6
Tamer Turgut, Songül Cakmakci
This study was performed to determine the viability of Lactobacillus acidophilus and Bifidobacterium bifidum in yogurt made with strawberry marmalade (SM) and to examine the quality properties of probiotic yogurt. Acidity, pH, bacterial counts and sensory analysis of the yogurt samples were investigated on days 1, 3, 5, 7, 10 and 14 during storage at 4 °C. The survival rate of L. acidophilus was greater than that of B. bifidum. The viability of L. acidophilus decreased during the storage period, but B. bifidum numbers remained stable during the storage period...
April 17, 2017: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/28416515/multivariate-modelling-of-faecal-bacterial-profiles-of-patients-with-ibs-predicts-responsiveness-to-a-diet-low-in-fodmaps
#7
Sean M P Bennet, Lena Böhn, Stine Störsrud, Therese Liljebo, Lena Collin, Perjohan Lindfors, Hans Törnblom, Lena Öhman, Magnus Simrén
OBJECTIVE: The effects of dietary interventions on gut bacteria are ambiguous. Following a previous intervention study, we aimed to determine how differing diets impact gut bacteria and if bacterial profiles predict intervention response. DESIGN: Sixty-seven patients with IBS were randomised to traditional IBS (n=34) or low fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAPs) (n=33) diets for 4 weeks. Food intake was recorded for 4 days during screening and intervention...
April 17, 2017: Gut
https://www.readbyqxmd.com/read/28413453/amelioration-of-intestinal-and-systemic-sequelae-of-murine-campylobacter-jejuni-infection-by-probiotic-vsl-3-treatment
#8
Ira Ekmekciu, Ulrike Fiebiger, Kerstin Stingl, Stefan Bereswill, Markus M Heimesaat
BACKGROUND: The incidence of human Campylobacter jejuni infections is progressively increasing worldwide. Probiotic compounds might open up valuable tools to decrease pathogen burden and subsequent pro-inflammatory immune responses, but in vivo data are scarce. METHODS AND RESULTS: Secondary abiotic mice generated by broad-spectrum antibiotic treatment were perorally challenged with the commercial probiotic compound VSL#3 consisting of Streptococcus thermophilus, Bifidobacterium breve, Bifidobacterium longum, Bifidobacterium infantis, Lactobacillus acidophilus, Lactobacillus plantarum, Lactobacillus paracasei, and Lactobacillus delbrueckii ssp...
2017: Gut Pathogens
https://www.readbyqxmd.com/read/28410921/a-randomized-trial-to-determine-the-impact-of-a-digestion-resistant-starch-composition-on-the-gut-microbiome-in-older-and-mid-age-adults
#9
Michelle J Alfa, David Strang, Paramjit S Tappia, Morag Graham, Gary Van Domselaar, Jessica D Forbes, Vanessa Laminman, Nancy Olson, Pat DeGagne, David Bray, Brenda-Lee Murray, Brenden Dufault, Lisa M Lix
BACKGROUND: The elderly often have a diet lacking resistant starch (RS) which is thought to lead to gut microbiome dysbiosis that may result in deterioration of gut colonocytes. OBJECTIVE: The primary objective was to assess if elderly (ELD; ≥ 70 years age) had microbiome dysbiosis compared to mid-age (MID; 30-50 years age) adults and then determine the impact of daily consumption of MSPrebiotic(®) (a RS) or placebo over 3 months on gut microbiome composition...
March 31, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28410377/plasma-from-patients-with-anti-glomerular-basement-membrane-disease-could-recognize-microbial-peptides
#10
Jian-Nan Li, Xiaoyu Jia, Yongqiang Wang, Can Xie, Taijiao Jiang, Zhao Cui, Ming-Hui Zhao
Infection has long been suspected as a trigger of autoimmune diseases, and molecular mimicry mechanism was hypothesized in this study. Microbe originated peptides were searched from the Uniprot database based on a previous defined critical amino acid motif within α3129-150, isoleucine137, tryptophan140, glycine142, phenylalanine 143 and phenylalanine 145. 23826 microbial peptides were identified using our searching strategy, among which seven were related with human infections. Circulating IgG and IgM antibodies against the seven microbial peptides were detected using ELISA in 76 patients with anti-GBM disease...
2017: PloS One
https://www.readbyqxmd.com/read/28409534/bifidobacterium-animalis-subsp-lactis-420-mitigates-the-pathological-impact-of-myocardial-infarction-in-the-mouse
#11
C A Danilo, E Constantopoulos, L A McKee, H Chen, J A Regan, Y Lipovka, S Lahtinen, L K Stenman, T-V V Nguyen, K P Doyle, M J Slepian, Z I Khalpey, J P Konhilas
There is a growing appreciation that our microbial environment in the gut plays a critical role in the maintenance of health and the pathogenesis of disease. Probiotic, beneficial gut microbes, administration can directly attenuate cardiac injury and post-myocardial infarction (MI) remodelling, yet the mechanisms of cardioprotection are unknown. We hypothesised that administration of Bifidobacterium animalis subsp. lactis 420 (B420), a probiotic with known anti-inflammatory properties, to mice will mitigate the pathological impact of MI, and that anti-inflammatory T regulatory (Treg) immune cells are necessary to impart protection against MI as a result of B420 administration...
April 14, 2017: Beneficial Microbes
https://www.readbyqxmd.com/read/28408274/bifidobacterium-longum-vertebrodiscitis-in-a-patient-with-cirrhosis-and-prostate-cancer
#12
Heather L Wilson, Chong Wei Ong
Bifidobacterium species are anaerobic, Gram-positive bacilli that colonize the human intestinal tract and oral cavity. They are an infrequent cause of invasive human infection. We report a case of Bifidobacterium longum lumbar vertebrodiscitis in a 71 year old man who was subsequently diagnosed with liver cirrhosis and prostate cancer. The clinical outcome was good following antibiotic treatment with penicillin and clindamycin. The laboratory identification of Bifidobacterium species and risk factors for invasive infection are discussed...
April 10, 2017: Anaerobe
https://www.readbyqxmd.com/read/28405142/protective-effect-of-bifidobacterium-infantis-cgmcc313-2-on-ovalbumin-induced-airway-asthma-and-%C3%AE-lactoglobulin-induced-intestinal-food-allergy-mouse-models
#13
Meng-Yun Liu, Zhen-Yu Yang, Wen-Kui Dai, Jian-Qiong Huang, Yin-Hu Li, Juan Zhang, Chuang-Zhao Qiu, Chun Wei, Qian Zhou, Xin Sun, Xin Feng, Dong-Fang Li, He-Ping Wang, Yue-Jie Zheng
AIM: To determine whether oral administration of Bifidobacterium infantis CGMCC313-2 (B. infantis CGMCC313-2) inhibits allergen-induced airway inflammation and food allergies in a mouse model. METHODS: Ovalbumin (OVA)-induced allergic asthma and β-lactoglobulin-induced food allergy mouse models were used in this study. Following oral administration of B. infantis CGMCC313-2 during or after allergen sensitization, histopathologic changes in the lung and intestine were evaluated by hematoxylin and eosin (HE) staining...
March 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28404640/comprehensive-evaluation-of-the-bactericidal-activities-of-free-bile-acids-in-the-large-intestine-of-humans-and-rodents
#14
Masamichi Watanabe, Satoru Fukiya, Atsushi Yokota
In addition to functioning as detergents that aid digestion of dietary lipids in the intestine, some bile acids have been shown to exhibit antimicrobial activity. However, detailed information on the bactericidal activities of the diverse molecular species of bile acid in humans and rodents is largely unknown. Here, we investigated the toxicity of 14 typical human and rodent free bile acids (FBAs) by monitoring intracellular pH, membrane integrity, and viability of a human intestinal bacterium, Bifidobacterium breve JCM 1192(T), upon exposure to these FBAs...
April 12, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28400412/western-diet-consumption-induces-alteration-of-barrier-function-mechanisms-in-the-ileum-that-correlates-with-metabolic-endotoxemia-in-rats
#15
Mathilde Guerville, Anaïs Leroy, Annaëlle Sinquin, Fabienne Laugerette, Marie-Caroline Michalski, Gaëlle Boudry
Obesity and its related disorders have been associated to the presence in the blood of gut bacteria-derived lipopolysaccharides (LPS). However, the factors underlying this low-grade elevation in plasma LPS, so-called metabolic endotoxemia, are not fully elucidated. We aimed to investigate the effects of Western diet (WD) feeding on intestinal and hepatic LPS handling mechanisms in a rat model of diet-induced obesity (DIO). Rats were fed either a standard chow diet (C) or a Western Diet (WD, 45% fat) for 6 weeks...
April 11, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28400010/exploitation-of-grape-marc-as-functional-substrate-for-lactic-acid-bacteria-and-bifidobacteria-growth-and-enhanced-antioxidant-activity
#16
Daniela Campanella, Carlo Giuseppe Rizzello, Cristina Fasciano, Giuseppe Gambacorta, Daniela Pinto, Barbara Marzani, Nicola Scarano, Maria De Angelis, Marco Gobbetti
This study aimed at using grape marc for the growth of lactic acid bacteria and bifidobacteria with the perspective of producing a functional ingredient having antioxidant activity. Lactobacillus plantarum 12A and PU1, Lactobacillus paracasei 14A, and Bifidobacterium breve 15A showed the ability to grow on grape marc (GM) based media. The highest bacterial cell density (>9.0 CFU/g) was found in GM added of 1% of glucose (GMG). Compared to un-inoculated and incubated control fermented GMG showed a decrease of carbohydrates and citric acid together with an increase of lactic acid...
August 2017: Food Microbiology
https://www.readbyqxmd.com/read/28396144/supplementation-of-diet-with-galacto-oligosaccharides-increases-bifidobacteria-but-not-insulin-sensitivity-in-obese-prediabetic-individuals
#17
Emanuel E Canfora, Christina M van der Beek, Gerben D A Hermes, Gijs H Goossens, Johan W E Jocken, Jens J Holst, Hans M van Eijk, Koen Venema, Hauke Smidt, Erwin G Zoetendal, Cornelis H C Dejong, Kaatje Lenaerts, Ellen E Blaak
BACKGROUND & AIMS: The gut microbiota affects host lipid and glucose metabolism, satiety, and chronic low-grade inflammation to contribute to obesity and type 2 diabetes. Fermentation end products, in particular the short-chain fatty acid (SCFA) acetate, are believed to be involved in these processes. We investigate the long-term effects of supplementation with galacto-oligosaccharides (GOS), an acetogenic fiber, on the composition of the human gut microbiota and human metabolism. METHODS: We performed a double-blinded, placebo-controlled, parallel intervention study of 44 overweight or obese (body mass index, 28-40 kg/m2) prediabetic men and women (ages, 45-70 years) from October 2014 through October 2015 in Maastricht, The Netherlands...
April 7, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28394924/microscale-spatial-analysis-provides-evidence-for-adhesive-monopolization-of-dietary-nutrients-by-specific-intestinal-bacteria
#18
Yusuke Nagara, Toshihiko Takada, Yuriko Nagata, Shoichi Kado, Akira Kushiro
Each species of intestinal bacteria requires a nutritional source to maintain its population in the intestine. Dietary factors are considered to be major nutrients; however, evidence directly explaining the in situ utilization of dietary factors is limited. Microscale bacterial distribution would provide clues to understand bacterial lifestyle and nutrient utilization. However, the detailed bacterial localization around dietary factors in the intestine remains uninvestigated. Therefore, we explored microscale habitats in the murine intestine by using histology and fluorescent in situ hybridization, focusing on dietary factors...
2017: PloS One
https://www.readbyqxmd.com/read/28393631/prebiotic-evaluation-of-red-seaweed-kappaphycus-alvarezii-using-in-vitro-colon-model
#19
Dayang Marshitah Bajury, Muhamad Hanif Rawi, Iqbal Hakim Sazali, Aminah Abdullah, Shahrul Razid Sarbini
Red seaweed (Kappaphycus alvarezii) cultivated from Sabah (RSS) and Langkawi (RSL) were digested using in vitro mouth, gastric and duodenal model. The digested seaweed then fermented in a pH-controlled batch culture system inoculated with human faeces to mimic the distal colon. Bacterial enumeration were monitored using fluorescent in situ hybridisation, and the fermentation end products, the short chain fatty acids (SCFA), were analysed using HPLC. Both RSS and RSL showed significant increase of Bifidobacterium sp...
April 10, 2017: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/28392148/molecular-insight-into-evolution-of-symbiosis-between-breast-fed-infants-and-a-member-of-the-human-gut-microbiome-bifidobacterium-longum
#20
Chihaya Yamada, Aina Gotoh, Mikiyasu Sakanaka, Mitchell Hattie, Keith A Stubbs, Ayako Katayama-Ikegami, Junko Hirose, Shin Kurihara, Takatoshi Arakawa, Motomitsu Kitaoka, Shujiro Okuda, Takane Katayama, Shinya Fushinobu
Breast-fed infants generally have a bifidobacteria-rich microbiota with recent studies indicating that human milk oligosaccharides (HMOs) selectively promote bifidobacterial growth. Bifidobacterium bifidum possesses a glycoside hydrolase family 20 lacto-N-biosidase for liberating lacto-N-biose I from lacto-N-tetraose, an abundant HMO unique to human milk, while Bifidobacterium longum subsp. longum has a non-classified enzyme (LnbX). Here, we determined the crystal structure of the catalytic domain of LnbX and provide evidence for creation of a novel glycoside hydrolase family, GH136...
April 20, 2017: Cell Chemical Biology
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