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Probiotic microbiota

James Butcher, Sharon Unger, Jennifer Li, Nicole Bando, Guillaume Romain, Jane Francis, Walid Mottawea, David Mack, Alain Stintzi, Deborah L O'Connor
Background: Very-low-birth-weight (VLBW; born weighing <1500 g) infant feeding with mother's own milk (mother's milk) is associated with numerous beneficial health outcomes. Several interventions, including the prophylactic use of probiotics, are being adopted to promote a gastrointestinal microbiota favorable to the gut health of VLBW infants. An improved understanding of the microbiota that results from mother's milk feeding would therefore facilitate progress in this field. Objective: A preplanned primary objective of this research was to characterize the development of the gut microbiota in exclusively mother's milk-fed VLBW infants and describe the reference taxonomic profile that results from mother's milk feeding...
March 1, 2018: Journal of Nutrition
Joaquin Escribano, Natalia Ferré, Mariona Gispert-Llaurado, Veronica Luque, Carmen Rubio-Torrents, Marta Zaragoza-Jordana, Isabel Polanco, Francisco M Codoñer, Empar Chenoll, Mireia Morera, Jose Antonio Moreno Muñoz, Montserrat Rivero, Ricardo Closa-Monasterolo
BACKGROUND: Intestinal microbiota of breast-fed infants is plenty of beneficial bifidobacteria. We aimed to determine whether an infant formula supplemented with probiotic Bifidobacterium longum subsp. infantis CECT7210 (B. infantis IM1®) is effective at reducing diarrhoea incidence in healthy term infants. METHODS: Double-blinded, randomized, multicentre, controlled clinical trial, where formula-fed infants (<3 months) received an infant formula supplemented (Probiotic) or not (Control) with 107 cfu/g of B...
March 14, 2018: Pediatric Research
Breno C B Beirão, Max Ingberman, Celso Fávaro, Dany Mesa, Letícia C Bittencourt, Vitor B Fascina, Luiz Felipe Caron
Probiotics and immunization are being widely adopted by the poultry industry with the goal of controlling Salmonella enterica. However, the interaction between these two management protocols has been sparsely studied. The present study aimed to understand the role of an Enterococcus faecium probiotic in the production of salmonella-specific IgA in layers immunized with a live vaccine. Four groups were used: 'Control' (no vaccine or probiotic); 'Probiotic' (which received an E. faecium product); 'Vaccine' (immunized with two doses of a live attenuated S...
March 14, 2018: Avian Pathology: Journal of the W.V.P.A
Murphy L Y Wan, Hani El-Nezami
Hepatocellular carcinoma (HCC), the most common primary liver cancer, is one of the dreaded complications of chronic liver disease. Recent experimental and clinical studies have revealed that the alteration of gut-liver axis plays a pivotal role in the onset of chronic liver diseases, including HCC. Altered gut microbiota and endotoxemia are increasingly recognized as critical components in promoting the progression of chronic liver diseases to HCC. Probiotics have been suggested as a novel, safe and cost-effective approach to prevent or treat HCC...
February 2018: Hepatobiliary Surgery and Nutrition
Josef R Bober, Chase L Beisel, Nikhil U Nair
An increasing number of studies have strongly correlated the composition of the human microbiota with many human health conditions and, in several cases, have shown that manipulating the microbiota directly affects health. These insights have generated significant interest in engineering indigenous microbiota community members and nonresident probiotic bacteria as biotic diagnostics and therapeutics that can probe and improve human health. In this review, we discuss recent advances in synthetic biology to engineer commensal and probiotic lactic acid bacteria, bifidobacteria, and Bacteroides for these purposes, and we provide our perspective on the future potential of these technologies...
March 12, 2018: Annual Review of Biomedical Engineering
W C Wang, F F Yan, J Y Hu, O A Amen, H W Cheng
Probiotics reduce stress-related inflammation and abnormal behaviors in humans and rodents via regulation of the microbiota-gut-brain axis. The objective of this study was to determine if probiotic, Bacillus subtilis, has similar functions in broiler chickens under heat stress (HS). Two hundred forty 1-day-old broiler chicks were assigned to 48 pens with 4 treatments: Thermoneutral (TN)-RD (regular diet), TN-PD (the regular diet mixed with 1×106 CFU/g feed probiotic), HS-RD and HS-PD. Probiotic (Sporulin®) was fed from day 1; and HS at 32 ºC for 10 h daily was initiated at day 15...
March 8, 2018: Journal of Animal Science
Lora J Kasselman, Nicholas A Vernice, Joshua DeLeon, Allison B Reiss
Cardiovascular disease associated with obesity and autoimmunity is the leading cause of death in these populations and significant residual risk remains despite current treatment approaches. Obesity, type 1 diabetes mellitus (T1DM), rheumatoid arthritis (RA), and systemic lupus erythematosus (SLE) are linked to chronic inflammation, and subjects with these disorders have characteristic shifts in their gut microbiome composition. Recent data suggest that alterations in gut microbial and metabolic composition may be responsible, in part, for induction of chronic inflammation, thus promoting cardiovascular disease...
March 2, 2018: Atherosclerosis
Pablo Roman, Raquel Abalo, Eva M Marco, Diana Cardona
In recent years, interest in the relationship between gut microbiota and disease states has grown considerably. Indeed, several strategies have been employed to modify the microbiome through the administration of different diets, by the administration of antibiotics or probiotics, or even by transplantation of feces. In the present manuscript, we focus specifically on the potential application of probiotics, which seem to be a safe strategy, in the management of digestive, pain, and emotional disorders. We present evidence from animal models and human studies, notwithstanding that translation to clinic still deserves further investigation...
March 7, 2018: Behavioural Pharmacology
Mengxia Wang, Yongxiong Chen, Yuanyuan Wang, Yuan Li, Haihui Zheng, Fangli Ma, ChungWah Ma, Xiaojun Zhang, Biyu Lu, Zhiyong Xie, Qiongfeng Liao
Weaning is an essential and important event for infants and rodent animals, and the dietary supplementation plays a crucial role in regulating the composition and function of gut microbiota in the initial period after weaning. In this study, we investigated the potential effects of two probiotics along with three polysaccharides (PP) in weaned rats. Male SD rats, 21 days of age, were divided into two groups: one group was administered with PP for four weeks and the other was not. Body weight, food intake, gut epithelial barrier function, digestive enzyme activities, and the composition and function of gut microbiota were analyzed...
March 9, 2018: Food & Function
Ludmila Vilela Resende, Leticia Kleinhans Pinheiro, Maria Gabriela da Cruz Pedroso Miguel, Cíntia Lacerda Ramos, Danielle Marques Vilela, Rosane Freitas Schwan
The microbial community of artisanal corn fermentation called Chicha were isolated, purified and then identified using protein profile by Matrix Assisted Laser Desorption Ionization Time-of-Flight Mass Spectrometry (MALDI-TOF) and confirmed by partial ribosomal gene sequencing. Samples from Chicha beverage were chemically characterized by gas and liquid chromatography (HPLC and GC-MS). Aerobic mesophilic bacteria (AMB) (35.8% of total of isolated microorganisms), lactic acid bacteria (LAB) (21.6%) and yeast (42...
March 8, 2018: World Journal of Microbiology & Biotechnology
Renyuan Gao, Xiaohui Zhang, Linsheng Huang, Rongrong Shen, Huanlong Qin
Gut microbiota has been proven to be of crucial importance in maintaining human health. However, the microbiota profile changes with aging, while the loss of microbiota diversity and the alterations in the optimal composition and quantity of beneficial microbes are believed to increase the risk of many diseases. Although the short-term modulatory impact of probiotics on gut microbiota has been revealed in various studies, no studies focused on longer time consumption of probiotics have been demonstrated. In this study, we found that microbial diversity in the probiotic group was similar to that in the control...
March 8, 2018: Probiotics and Antimicrobial Proteins
Paige V Bauer, Frank A Duca, T M Zaved Waise, Helen J Dranse, Brittany A Rasmussen, Akshita Puri, Mozhgan Rasti, Catherine A O'Brien, Tony K T Lam
Long-chain acyl-CoA synthetase (ACSL)-dependent upper small intestinal lipid metabolism activates pre-absorptive pathways to regulate metabolic homeostasis, but whether changes in the upper small intestinal microbiota alter specific fatty acid-dependent pathways to impact glucose homeostasis remains unknown. We here first find that upper small intestinal infusion of Intralipid, oleic acid, or linoleic acid pre-absorptively increases glucose tolerance and lowers glucose production in rodents. High-fat feeding impairs pre-absorptive fatty acid sensing and reduces upper small intestinal Lactobacillus gasseri levels and ACSL3 expression...
March 6, 2018: Cell Metabolism
Asad Nawaz, Allah Bakhsh Javaid, Sana Irshad, Seyed Hossein Hoseinifar, Hanguo Xiong
The gut immune system is, the main option for maintaining host's health, affected by numerous factors comprising dietary constituents and commensal bacteria. These dietary components that affect the intestinal immunity and considered as an alternative of antibiotics are called immunosaccharides. Fructooligosaccharide (FOS), Galactooligosaccharide (GOS), inulin, dietary carbohydrates, and xylooligosaccharide (XOS) are among the most studied prebiotics in human as well as in aquaculture. Although prebiotics and probiotics have revealed potential as treatment for numerous illnesses in both human and fish, a comprehensive understanding of the molecular mechanism behind direct and indirect effect on the intestinal immune response will help more and perhaps extra effective therapy intended for ailments...
March 3, 2018: Fish & Shellfish Immunology
Qian Zhang, Hongyue Yu, Xinhua Xiao, Ling Hu, Fengjiao Xin, Xiaobing Yu
Background & Aims: Accumulating research has addressed the linkage between the changes to gut microbiota structure and type 2 diabetes (T2D). Inulin is one type of soluble dietary fiber that can alleviate T2D. As a prebiotic, inulin cannot be digested by humans, but rather is digested by probiotics. However, whether inulin treatment can benefit the entire gut bacteria community remains unknown. In this study, we evaluated the differences in gut microbiota composition among diabetic, inulin-treated diabetic, normal control, and inulin-treated normal control rats...
2018: PeerJ
E Verduci, F Moretti, G Bassanini, G Banderali, V Rovelli, M C Casiraghi, G Morace, F Borgo, E Borghi
BACKGROUND AND AIMS: Phenylalanine (Phe) restricted diet, combined with Phe-free l-amino acid supplementation, is the mainstay of treatment for phenylketonuria (PKU). Being the diet a key factor modulating gut microbiota composition, the aim of the present paper was to compare dietary intakes, gut microbiota biodiversity and short chain fatty acids (SCFAs) production in children with PKU, on low-Phe diet, and in children with mild hyperphenylalaninemia (MHP), on unrestricted diet. METHODS AND RESULTS: We enrolled 21 PKU and 21 MHP children matched for gender, age and body mass index z-score...
January 31, 2018: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
Catarina Monteiro, Patrícia I Marques, Bruno Cavadas, Isabel Damião, Vasco Almeida, Nuno Barros, Alberto Barros, Filipa Carvalho, Sílvia Gomes, Susana Seixas
PROBLEM: Sexually transmitted diseases and other infections of male genitourinary tract are thought to negatively impact reproductive health, affecting semen quality. Despite a possible link between bacteria and infertility, few studies attempted to characterize seminal microbiota in healthy and diseased subjects. METHODS OF THE STUDY: A high-throughput sequencing of 16S ribosomal RNA gene was performed in a cohort of infertility-related cases (N = 89) and controls (N = 29) using a pooled sample approach...
March 3, 2018: American Journal of Reproductive Immunology: AJRI
Noelia Martínez, Roberto Luque, Christian Milani, Marco Ventura, Oscar Bañuelos, Abelardo Margolles
Bifidobacteria are mutualistic intestinal bacteria and their presence in the human gut has been associated with health-promoting activities. The presence of antibiotic resistance genes in this genus is controversial, since, although bifidobacteria are non-pathogenic microorganisms, they could serve as reservoirs of resistance for intestinal pathogens. However, until now, few antibiotic resistance determinants have been functionally characterized in this genus. In this work, we show that Bifidobacterium breve CECT7263 displays atypical resistance to erythromycin and clindamycin...
March 2, 2018: Applied and Environmental Microbiology
Bruno K Rodiño-Janeiro, María Vicario, Carmen Alonso-Cotoner, Roberto Pascua-García, Javier Santos
Irritable bowel syndrome (IBS), one of the most frequent digestive disorders, is characterized by chronic and recurrent abdominal pain and altered bowel habit. The origin seems to be multifactorial and is still not well defined for the different subtypes. Genetic, epigenetic and sex-related modifications of the functioning of the nervous and immune-endocrine supersystems and regulation of brain-gut physiology and bile acid production and absorption are certainly involved. Acquired predisposition may act in conjunction with infectious, toxic, dietary and life event-related factors to enhance epithelial permeability and elicit mucosal microinflammation, immune activation and dysbiosis...
March 1, 2018: Advances in Therapy
C Antza, S Stabouli, V Kotsis
The human gut microbiota is being composed of more than one hundred trillion microbial cells, including aerobic and anaerobic species as well as gram-positive and negative species. Animal based evidence suggests that the change of normal gut microbiota is responsible for several clinical implications including blood pressure increase and kidney function reduction. Trimethylamine-N-Oxide, short-chain fatty acids and inflammatory factors are originated from the gut microbes and may induce changes in arteries, kidneys and blood pressure...
February 26, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
Ceyda Tugba Pekmez, Lars Ove Dragsted, Lena Kirchner Brahe
The gut microbiome affects the health status of the host through different mechanisms and is associated with a wide variety of diseases. Both childhood undernutrition and obesity are linked to alterations in composition and functionality of the gut microbiome. One of the possible mechanisms underlying the interplay between microbiota and host metabolism is through appetite-regulating hormones (including leptin, ghrelin, glucagon-like peptide-1). Short chain fatty acids, the end product of bacterial fermentation of non-digestible carbohydrates, might be able to alter energy harvest and metabolism through enteroendocrine cell signaling, adipogenesis and insulin-like growth factor-1 production...
February 17, 2018: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
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