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Microbiome infections

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https://www.readbyqxmd.com/read/28220514/randomised-clinical-trial-faecal-microbiota-transplantation-for-recurrent-clostridum-difficile-infection-fresh-or-frozen-or-lyophilised-microbiota-from-a-small-pool-of-healthy-donors-delivered-by-colonoscopy
#1
Z D Jiang, N J Ajami, J F Petrosino, G Jun, C L Hanis, M Shah, L Hochman, V Ankoma-Sey, A W DuPont, M C Wong, A Alexander, S Ke, H L DuPont
BACKGROUND: Faecal microbiota transplantation (FMT) has become routine in managing recurrent C. difficile infection (CDI) refractory to antibiotics. AIM: To compare clinical response and improvements in colonic microbiota diversity in subjects with recurrent CDI using different donor product. METHODS: Seventy-two subjects with ≥3 bouts of CDI were randomised in a double-blind study to receive fresh, frozen or lyophilised FMT product via colonoscopy from 50 g of stool per treatment from eight healthy donors...
February 21, 2017: Alimentary Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28217698/questions-and-challenges-associated-with-studying-the-microbiome-of-the-urinary-tract
#2
REVIEW
Yige Bao, Kait F Al, Ryan M Chanyi, Samantha Whiteside, Malcom Dewar, Hassan Razvi, Gregor Reid, Jeremy P Burton
Urologists are typically faced with clinical situations for which the microbiome may have been a contributing factor. Clinicians have a good understanding regarding the role of bacteria related to issues such as antibiotic resistance; however, they generally have a limited grasp of how the microbiome may relate to urological issues. The largest part of the human microbiome is situated in the gastrointestinal tract, and though this is mostly separated from the urinary system, bacterial dissemination and metabolic output by this community is thought to have a significant influence on urological conditions...
January 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28217695/gut-microbiome-and-chronic-prostatitis-chronic-pelvic-pain-syndrome
#3
REVIEW
Hans C Arora, Charis Eng, Daniel A Shoskes
Analysis of the human microbiome continues to reveal new and previously unrealized associations between microbial dysbiosis and disease. Novel approaches to bacterial identification using culture-independent methods allow practitioners to discern the presence of alterations in the taxa and diversity of the microbiome and identify correlations with disease processes. While some of these diseases that have been extensively studied are well-defined in their etiology and treatment methods (colorectal cancer), others have provided much more significant challenges in both diagnosis and treatment...
January 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28203137/comamonas-testosteroni-is-it-still-a-rare-human-pathogen
#4
Shaika Farooq, Rumana Farooq, Nahida Nahvi
Comamonas testosteroni (formally Pseudomonas testosteroni) is common environmental bacterium that is not part of the human microbiome. Since its identification as a human pathogen in 1987, numerous reports have drizzled in, implicating this organism for various infections. Although these organisms are of low virulence, some of their obscurity perhaps is due to the incapability of clinical laboratories to identify them. Most of the reported cases are bloodstream infections. We report a case of gastroenteritis caused by this organism in a 65-year-old female with colostomy in situ...
January 2017: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/28195180/successful-resolution-of-recurrent-clostridium-difficile-infection-using-freeze-dried-encapsulated-fecal-microbiota-pragmatic-cohort-study
#5
Christopher Staley, Matthew J Hamilton, Byron P Vaughn, Carolyn T Graiziger, Krista M Newman, Amanda J Kabage, Michael J Sadowsky, Alexander Khoruts
OBJECTIVES: Fecal microbiota transplantation (FMT) is increasingly being used for treatment of recurrent Clostridium difficile infection (R-CDI) that cannot be cured with antibiotics alone. In addition, FMT is being investigated for a variety of indications where restoration or restructuring of the gut microbial community is hypothesized to be beneficial. We sought to develop a stable, freeze-dried encapsulated preparation of standardized fecal microbiota that can be used for FMT with ease and convenience in clinical practice and research...
February 14, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28195066/successful-therapy-of-clostridium-difficile-infection-with-fecal-microbiota-transplantation
#6
P C Konturek, J Koziel, W Dieterich, D Haziri, S Wirtz, I Glowczyk, K Konturek, M F Neurath, Y Zopf
Clostridium difficile infection (CDI) is the most common cause of infectious diarrhea and represents an important burden for healthcare worldwide. Symptoms of severe CDI include watery, foul-smelling diarrhea, peripheral leucocytosis, increased C-reactive protein (CRP), acute renal failure, hypotension and pseudomembranous colitis. Recent studies indicate that the main cause of CDI is dysbiosis, an imbalance in the normal gut microbiota. The restoration of a healthy gut microbiota composition via fecal microbiota transplantation (FMT) recently became more popular...
December 2016: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28188751/r1-immunohistochemical-study-of-mucins-in-human-intestinal-spirochetosis
#7
Sho Ogata, Ken Shimizu, Susumu Tominaga, Kuniaki Nakanishi
Most patients with human intestinal spirochetosis (HIS; a colorectal bacterial infection caused by Brachyspira species) seem asymptomatic, and its pathogenicity remains unclear. Recently, alterations in mucin expression were reported in animal Brachyspira infection. The present question was "Is mucin expression altered in HIS?". Using antibodies for MUCs 1, 2, 4, 5 AC, and 6, we immunohistochemically compared 215 specimens from 83 histology-confirmed HIS cases with 106 specimens from 26 non-HIS cases. Positive staining (which included even focal positive staining) was rated "high (+)" or "low (+)"...
February 8, 2017: Human Pathology
https://www.readbyqxmd.com/read/28187782/sputum-dna-sequencing-in-cystic-fibrosis-non-invasive-access-to-the-lung-microbiome-and-to-pathogen-details
#8
Rounak Feigelman, Christian R Kahlert, Florent Baty, Frank Rassouli, Rebekka L Kleiner, Philipp Kohler, Martin H Brutsche, Christian von Mering
BACKGROUND: Cystic fibrosis (CF) is a life-threatening genetic disorder, characterized by chronic microbial lung infections due to abnormally viscous mucus secretions within airways. The clinical management of CF typically involves regular respiratory-tract cultures in order to identify pathogens and to guide treatment. However, culture-based methods can miss atypical or slow-growing microbes. Furthermore, the isolated microbes are often not classified at the strain level due to limited taxonomic resolution...
February 10, 2017: Microbiome
https://www.readbyqxmd.com/read/28183432/lessons-learned-from-birth-cohort-studies-conducted-in-diverse-environments
#9
REVIEW
Daniel J Jackson, James E Gern, Robert F Lemanske
Childhood asthma develops from a complex interaction among host and environmental factors in early life. Birth cohort studies have provided valuable insight into asthma risk factors and the natural history of wheezing and asthma through childhood and beyond. Early life aeroallergen sensitization and wheezing illnesses associated with virus and bacterial infections have been identified as pivotal risk factors for asthma inception. Recently, focus has turned toward protective factors that promote lung health in children...
February 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28181098/effect-of-aging-on-the-composition-of-fecal-microbiota-in-donors-for-fmt-and-its-impact-on-clinical-outcomes
#10
Rohit Anand, Yang Song, Shashank Garg, Mohit Girotra, Amitasha Sinha, Anita Sivaraman, Laila Phillips, Sudhir K Dutta
BACKGROUND: Fecal microbiota transplantation (FMT) is emerging as an effective therapy for the treatment of recurrent Clostridium difficile infection (RCDI). Selecting an appropriate donor is vital to the success of FMT. However, the relationship between age of donors and the efficacy of FMT has not been examined to date. The aim of this study was to examine the effect of age of healthy donors on their fecal microbiota and assess the impact of these changes on the clinical efficacy of FMT...
February 8, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28178052/fecal-microbiota-transplant-for-clostridium-difficile-infection-in-a-pregnant-patient
#11
Bejan J Saeedi, Doree Gardner Morison, Colleen S Kraft, Tanvi Dhere
BACKGROUND: Clostridium difficile infection has been associated with negative outcomes in the general population and in pregnant patients. Fecal microbiota transplant has become the standard for treatment of recurrent as well as refractory C difficile infection. CASE: We present a case of a 28-year-old pregnant woman who presented with recurrent C difficile infection despite treatment with vancomycin and fidaxomicin and underwent a successful fecal microbiota transplant through colonoscopy at 18 weeks of gestation...
February 6, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28170403/longitudinal-assessment-of-sputum-microbiome-by-sequencing-of-the-16s-rrna-gene-in-non-cystic-fibrosis-bronchiectasis-patients
#12
Michael J Cox, Elena M Turek, Catherine Hennessy, Ghazala K Mirza, Phillip L James, Meg Coleman, Andrew Jones, Robert Wilson, Diana Bilton, William O C Cookson, Miriam F Moffatt, Michael R Loebinger
BACKGROUND: Bronchiectasis is accompanied by chronic bronchial infection that may drive disease progression. However, the evidence base for antibiotic therapy is limited. DNA based methods offer better identification and quantification of microbial constituents of sputum than standard clinical culture and may help inform patient management strategies. Our study objective was to determine the longitudinal variability of the non-cystic fibrosis (CF) bronchiectasis microbiome in sputum with respect to clinical variables...
2017: PloS One
https://www.readbyqxmd.com/read/28164849/fecal-microbiota-transplantation
#13
REVIEW
Stephen M Vindigni, Christina M Surawicz
Fecal microbiota transplantation (FMT) is the transfer of stool from a healthy donor into the colon of a patient whose disease is a result of an altered microbiome, with the goal of restoring the normal microbiota and thus curing the disease. The most effective and well-studied indication for FMT is recurrent Clostridium difficile infection. At this time, there is insufficient evidence to recommend FMT for other gastrointestinal diseases, but studies are under way. There is also insufficient evidence to recommend FMT for nongastrointestinal diseases at this time...
March 2017: Gastroenterology Clinics of North America
https://www.readbyqxmd.com/read/28163914/recent-advances-in-understanding-noroviruses
#14
REVIEW
Eric Bartnicki, Juliana Bragazzi Cunha, Abimbola O Kolawole, Christiane E Wobus
Noroviruses are the leading cause of acute gastroenteritis around the world. An individual living in the United States is estimated to develop norovirus infection five times in his or her lifetime. Despite this, there is currently no antiviral or vaccine to combat the infection, in large part because of the historical lack of cell culture and small animal models. However, the last few years of norovirus research were marked by a number of ground-breaking advances that have overcome technical barriers and uncovered novel aspects of norovirus biology...
2017: F1000Research
https://www.readbyqxmd.com/read/28157786/campylobacter-jejuni-and-associated-immune-mechanisms-short-term-effects-and-long-term-implications-for-infants-in-low-income-countries
#15
Amanda E Schnee, William A Petri
PURPOSE OF REVIEW: Campylobacter jejuni is recognized as one of the most common causes of food-borne gastrointestinal illness worldwide, resulting in a self-limiting dysentery in developed countries. However, it is increasingly gaining attention due to its association with postinfectious complications such as Guillain-Barré Syndrome and recently recognized importance in early childhood diarrhea in developing countries. We hypothesize that the inflammation mediated by C. jejuni infection causes environmental enteric dysfunction, and with contribution from diet and the host, microbiome may be responsible for growth faltering in children and developmental disability...
February 2, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28156021/loss-of-cutaneous-microbial-diversity-during-first-three-weeks-of-life-in-very-low-birth-weight-infants
#16
A Salava, V Aho, E Lybeck, P Pereira, L Paulin, I Nupponen, A Ranki, P Auvinen, S Andersson, A Lauerma
Neonatal sepsis (NS) is a frequent problem in neonatal intensive care, especially in preterm and very low birth weight (VLBW) infants. The objective of the study was to characterize the cutaneous bacterial microbiome in VLBW infants treated in the neonatal intensive care unit (NICU). Non-invasive skin microbiome specimens were taken repeatedly from 12 VLBW infants during treatment in NICU starting on the first day of life. All infants received benzylpenicillin and netilmicin during the first 1-5 postnatal days...
February 3, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/28154012/gastrointestinal-immune-and-microbiome-changes-during-parenteral-nutrition
#17
Joseph F Pierre
Parenteral Nutrition (PN) is a lifesaving therapy that provides intravenous nutrition support to patients who cannot, or should not, feed via the gastrointestinal tract. Unfortunately, PN also carries certain risks related to infection and metabolic complications compared with enteral nutrition. In this review, an overview of PN and gastrointestinal (GI) immune and microbiome changes is provided. PN impacts the gut-associated lymphoid tissue (GALT) functions - especially adaptive immune cells - changes to intestinal epithelium and chemical secretions, and significantly alters the intestinal microbiome...
February 2, 2017: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/28146577/blood-microbiome-quantity-and-the-hyperdynamic-circulation-in-decompensated-cirrhotic-patients
#18
Daniela Traykova, Beacher Schneider, Mario Chojkier, Martina Buck
BACKGROUND: Recently, a complex microbiome was comprehensibly characterized in the serum and ascitic fluid of cirrhotic patients. In the current study, we investigated for the first time the induction of inflammatory pathways and Nitric Oxide, as well as the systemic hemodynamics in conjunction with the blood microbiome in a Child-Pugh class B cirrhotic cohort. METHODS AND FINDINGS: We used the Intestinal Infections Microbial DNA qPCR Array to screen for 53 bacterial DNA from the gut in the blood...
2017: PloS One
https://www.readbyqxmd.com/read/28134687/fecal-microbiota-transplantation-for-gastrointestinal-disorders
#19
Thomas Malikowski, Sahil Khanna, Darrell S Pardi
PURPOSE OF REVIEW: The importance of the gut microbiome in human health is being increasingly recognized. The purpose of this review is to examine the existing literature pertaining to alterations in the gut microbiome and the utility of microbiome restoration therapies in gastrointestinal disorders. RECENT FINDINGS: Imbalance and maladaptation of the microbiome, termed dysbiosis, has been associated with several disease states such as irritable bowel syndrome, Clostridium difficile infection, inflammatory bowel diseases, nonalcoholic fatty liver disease, and obesity among others...
January 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28131442/the-human-gut-microbiome-as-source-of-innovation-for-health-which-physiological-and-therapeutic-outcomes-could-we-expect
#20
Joël Doré, Marie-Christine Multon, Jehan-Michel Béhier
From the moment of birth, each human being builds a microbe-host symbiosis which is key for the preservation of its health and well-being. This personal symbiotic coexistence is the result of progressive enrichments in microorganism diversity through external supplies. This diversity is nowadays massively overthrown by drastic changes related to clinical practice in birth management, environmental exposure, nutrition and healthcare behaviors. The last two generations have been the frame of massive modifications in life and food habits, with people being more and more sedentary, overfed and permeated with drugs and pollutants...
January 3, 2017: Thérapie
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