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Urinary microbiome

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https://www.readbyqxmd.com/read/29030459/household-triclosan-and-triclocarban-effects-on-the-infant-and-maternal-microbiome
#1
Jessica V Ribado, Catherine Ley, Thomas D Haggerty, Ekaterina Tkachenko, Ami S Bhatt, Julie Parsonnet
In 2016, the US Food and Drug Administration banned the use of specific microbicides in some household and personal wash products due to concerns that these chemicals might induce antibiotic resistance or disrupt human microbial communities. Triclosan and triclocarban (referred to as TCs) are the most common antimicrobials in household and personal care products, but the extent to which TC exposure perturbs microbial communities in humans, particularly during infant development, was unknown. We conducted a randomized intervention of TC-containing household and personal care products during the first year following birth to characterize whether TC exposure from wash products perturbs microbial communities in mothers and their infants...
October 13, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29020210/fecal-microbiota-transplantation-for-recurrent-clostridium-difficile-infection-reduces-recurrent-urinary-tract-infection-frequency
#2
Raseen Tariq, Darrell S Pardi, Pritish K Tosh, Randall C Walker, Raymund R Razonable, Sahil Khanna
Broad-spectrum antibiotics for recurrent multidrug-resistant urinary tract infections (UTIs) disrupt the gut microbiome and promote antibiotic resistance. Fecal microbiota transplantation led to resolution of recurrent Clostridium difficile, significantly decreased recurrent UTI frequency, and improved antibiotic susceptibility profile of UTI-causing organisms.
July 18, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28945201/enterobacteria-secrete-an-inhibitor-of-pseudomonas-virulence-during-clinical-bacteriuria
#3
Shannon I Ohlemacher, Daryl E Giblin, D André d'Avignon, Ann E Stapleton, Barbara W Trautner, Jeffrey P Henderson
Escherichia coli and other Enterobacteriaceae are among the most common pathogens of the human urinary tract. Among the genetic gains of function associated with urinary E. coli isolates is the Yersinia high pathogenicity island (HPI), which directs the biosynthesis of yersiniabactin (Ybt), a virulence-associated metallophore. Using a metabolomics approach, we found that E. coli and other Enterobacteriaceae expressing the Yersinia HPI also secrete escherichelin, a second metallophore whose chemical structure matches a known synthetic inhibitor of the virulence-associated pyochelin siderophore system in Pseudomonas aeruginosa...
September 25, 2017: Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28934349/the-association-between-acute-graft-versus-host-disease-and-antimicrobial-peptide-expression-in-the-gastrointestinal-tract-after-allogeneic-stem-cell-transplantation
#4
Daniela Weber, Katrin Frauenschläger, Sakhila Ghimire, Katrin Peter, Isabella Panzer, Andreas Hiergeist, Markus Weber, Daniel Kutny, Daniel Wolff, Matthias Grube, Elisabeth Huber, Peter Oefner, Andre Gessner, Thomas Hehlgans, Wolfgang Herr, Ernst Holler
Intestinal microbiota disruption is associated with acute gastrointestinal (GI) Graft-versus-Host Disease (GvHD) and poor outcome after allogeneic stem cell transplantation (ASCT). Here, in a retrospective analysis of 200 patients undergoing ASCT at the Regensburg University Medical Center, we assessed the relative expression of Paneth cell antimicrobial peptides (AMPs), Human Defensins (HD) 5 and 6 and regenerating islet-derived 3α (Reg3α), in 292 human intestinal biopsies as well as Reg3α serum levels in relation to acute GI GvHD...
2017: PloS One
https://www.readbyqxmd.com/read/28885921/acquisition-of-multidrug-resistant-gram-negative-organisms-during-travel
#5
Clinton K Murray, Dana M Blyth
The rate of multidrug resistance has continued to increase worldwide, presenting clinicians with further challenges related to patient care. In this article, we review information related to the acquisition of multidrug-resistant (MDR) Gram-negative organisms among travelers, including deployed personnel, as well as the potential impact on wound microbiology and travelers' diarrhea. Travel to Asia, experiencing travelers' diarrhea, and use of antibiotics, whereas abroad have been associated with an increased risk of acquiring MDR Enterobacteriaceae colonization...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28871782/antibiotic-treatment-preventing-necrotising-enterocolitis-alters-urinary-and-plasma-metabolomes-in-preterm-pigs
#6
Pingping Jiang, Alessia Trimigno, Jan Stanstrup, Bekzod Khakimov, Nanna Viereck, Søren Balling Engelsen, Per Torp Sangild, Lars Ove Dragsted
Necrotising enterocolitis (NEC) is a serious gut inflammatory condition in premature neonates, onset and development of which depend on the gut microbiome. Attenuation of the gut microbiome by antibiotics can reduce NEC incidence and severity. However, how the antibiotics-suppressed gut microbiome affects the whole-body metabolism in NEC-sensitive premature neonates is unknown. In formula-fed preterm pigs, used as a model for preterm infants, plasma and urinary metabolomes were investigated by LC-MS and (1)H NMR, with and without antibiotic treatment immediately after birth...
September 14, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28856733/a-bacteriophages-journey-through-the-human-body
#7
REVIEW
Jeremy J Barr
The human body is colonized by a diverse collective of microorganisms, including bacteria, fungi, protozoa and viruses. The smallest entity of this microbial conglomerate are the bacterial viruses. Bacteriophages, or phages for short, exert significant selective pressure on their bacterial hosts, undoubtedly influencing the human microbiome and its impact on our health and well-being. Phages colonize all niches of the body, including the skin, oral cavity, lungs, gut, and urinary tract. As such our bodies are frequently and continuously exposed to diverse collections of phages...
September 2017: Immunological Reviews
https://www.readbyqxmd.com/read/28819457/type-1-diabetes-urinary-proteomics-and-protein-network-analysis-support-perturbation-of-lysosomal-function
#8
Harinder Singh, Yanbao Yu, Moo-Jin Suh, Manolito G Torralba, Robert D Stenzel, Andrey Tovchigrechko, Vishal Thovarai, Derek M Harkins, Seesandra V Rajagopala, Whitney Osborne, Fran R Cogen, Paul B Kaplowitz, Karen E Nelson, Ramana Madupu, Rembert Pieper
While insulin replacement therapy restores the health and prevents the onset of diabetic complications (DC) for many decades, some T1D patients have elevated hemoglobin A1c values suggesting poor glycemic control, a risk factor of DC. We surveyed the stool microbiome and urinary proteome of a cohort of 220 adolescents and children, half of which had lived with T1D for an average of 7 years and half of which were healthy siblings. Phylogenetic analysis of the 16S rRNA gene did not reveal significant differences in gut microbial alpha-diversity comparing the two cohorts...
2017: Theranostics
https://www.readbyqxmd.com/read/28797714/profiling-the-urinary-microbiome-in-men-with-positive-versus-negative-biopsies-for-prostate-cancer
#9
Eva Shrestha, James R White, Shu-Han Yu, Ibrahim Kulac, Onur Ertunc, Angelo M De Marzo, Srinivasan Yegnasubramanian, Leslie A Mangold, Alan W Partin, Karen S Sfanos
PURPOSE: Studies demonstrating bacterial DNA and cultivable bacteria in urine samples have challenged the clinical dogma that urine is sterile. Furthermore, studies now indicate that dysbiosis of the urinary microbiome is associated with pathological conditions. We propose that the urinary microbiome may influence chronic inflammation observed in the prostate, leading to prostate cancer development and progression. Therefore, we profiled the urinary microbiome in men with positive vs negative biopsies for prostate cancer...
August 7, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28793309/the-microbiome-in-urogenital-schistosomiasis-and-induced-bladder-pathologies
#10
Adewale S Adebayo, Mangesh Survayanshi, Shrikanth Bhute, Atinuke M Agunloye, Raphael D Isokpehi, Chiaka I Anumudu, Yogesh S Shouche
BACKGROUND: Human schistosomiasis is a highly prevalent neglected tropical disease (NTD) caused by Schistosoma species. Research on the molecular mechanisms influencing the outcomes of bladder infection by Schistosoma haematobium is urgently needed to develop new diagnostics, therapeutics and infection prevention strategies. The objective of the research study was to determine the microbiome features and changes in urine during urogenital schistosomiasis and induced bladder pathologies...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28753805/the-urinary-tract-microbiome-in-health-and-disease
#11
REVIEW
Isabel M Aragón, Bernardo Herrera-Imbroda, María I Queipo-Ortuño, Elisabeth Castillo, Julia Sequeira-García Del Moral, Jaime Gómez-Millán, Gozde Yucel, María F Lara
CONTEXT: The urinary tract, previously considered a sterile body niche, has emerged as the host of an array of bacteria in healthy individuals, revolutionizing the urology research field. OBJECTIVE: To review the literature on microbiome implications in the urinary tract and the usefulness of probiotics/prebiotics and diet as treatment for urologic disorders. EVIDENCE ACQUISITION: A systematic review was conducted using PubMed and Medline from inception until July 2016...
November 14, 2016: European Urology Focus
https://www.readbyqxmd.com/read/28669514/identification-of-urine-metabolites-associated-with-5-year-changes-in-biomarkers-of-glucose-homoeostasis
#12
N Friedrich, T Skaaby, M Pietzner, K Budde, B H Thuesen, M Nauck, A Linneberg
AIM: Metabolomics provides information on pathogenetic mechanisms and targets for interventions, and may improve risk stratification. During the last decade, metabolomics studies were used to gain deeper insight into the pathogenesis of diabetes mellitus. However, longitudinal metabolomics studies of possible subclinical states of disturbed glucose metabolism are limited. Therefore, the aim of this study was to analyze the associations between baseline urinary metabolites and 5-year changes in continuous markers of glucose homoeostasis, including fasting glucose, HbA1c and homoeostasis model assessment of insulin resistance (HOMA-IR) index values...
June 29, 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/28628622/urinary-catheter-associated-microbiota-change-in-accordance-with-treatment-and-infection-status
#13
Laetitia Bossa, Kimberly Kline, Diane McDougald, Bonsan Bonne Lee, Scott A Rice
The use of long-term catheterisation to manage insensate bladders, often associated with spinal cord injury (SCI), increases the risk of microbial colonisation and infection of the urinary tract. Urinary tract infection (UTI) is typically diagnosed and treated based on the culturing of organisms from the urine, although this approach overlooks low titer, slow growing and non-traditional pathogens. Here, we present an investigation of the urinary tract microbiome in catheterised SCI individuals, using T-RFLP and metagenomic sequencing of the microbial community...
2017: PloS One
https://www.readbyqxmd.com/read/28618237/effect-of-sweetened-dried-cranberry-consumption-on-urinary-proteome-and-fecal-microbiome-in-healthy-human-subjects
#14
Nell Bekiares, Christian G Krueger, Jennifer J Meudt, Dhanansayan Shanmuganayagam, Jess D Reed
The relationship among diet, human health, and disease is an area of growing interest in biomarker research. Previous studies suggest that the consumption of cranberries (Vaccinium macrocarpon) could beneficially influence urinary and digestive health. The present study sought to determine if daily consumption of sweetened dried cranberries (SDC) changes the urinary proteome and fecal microbiome, as determined in a prospective sample of 10 healthy individuals. Baseline urine and fecal samples were collected from the subjects in the fasted (8-12 h) state...
June 15, 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28545071/characterization-of-the-urinary-microbiome-in-healthy-dogs
#15
Erin N Burton, Leah A Cohn, Carol N Reinero, Hans Rindt, Stephen G Moore, Aaron C Ericsson
The urinary bladder in healthy dogs has dogmatically been considered free of bacteria. This study used culture independent techniques to characterize the healthy canine urinary microbiota. Urine samples collected by antepubic cystocentesis from dogs without urinary infection were used for DNA extraction. Genital tract and rectal samples were collected simultaneously from the same dogs. The V4 hypervariable region of the 16S rRNA bacterial gene was amplified and compared against Greengenes database for OTU assignment and relative abundance for urine, genital, and rectal samples...
2017: PloS One
https://www.readbyqxmd.com/read/28542707/-urinary-tract-infection-requiem-for-a-heavyweight
#16
Thomas E Finucane
"Urinary tract infection" ("UTI") is an ambiguous, expansive, overused diagnosis that can lead to marked, harmful antibiotic overtreatment. "Significant bacteriuria," central to most definitions of "UTI," has little significance in identifying individuals who will benefit from treatment. "Urinary symptoms" are similarly uninformative. Neither criterion is well defined. Bacteriuria and symptoms remit and recur spontaneously. Treatment is standard for acute uncomplicated cystitis and common for asymptomatic bacteriuria, but definite benefits are few...
August 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28526852/health-benefit-of-vegetable-fruit-juice-based-diet-role-of-microbiome
#17
Susanne M Henning, Jieping Yang, Paul Shao, Ru-Po Lee, Jianjun Huang, Austin Ly, Mark Hsu, Qing-Yi Lu, Gail Thames, David Heber, Zhaoping Li
The gut microbiota is an important contributor to human health. Vegetable/fruit juices provide polyphenols, oligosaccharides, fiber and nitrate (beet juice), which may induce a prebiotic-like effect. Juice-based diets are becoming popular. However, there is a lack of scientific evidence of their health benefits. It was our hypothesis that changes in the intestinal microbiota induced by a juice-based diet play an important role in their health benefits. Twenty healthy adults consumed only vegetable/fruit juices for 3 days followed by 14 days of customary diet...
May 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28520899/increased-urinary-trimethylamine-n-oxide-following-cryptosporidium-infection-and-protein-malnutrition-independent-of-microbiome-effects
#18
David T Bolick, Jordi Mayneris-Perxachs, Greg L Medlock, Glynis L Kolling, Jason A Papin, Jon R Swann, Richard L Guerrant
Cryptosporidium infections have been associated with growth stunting, even in the absence of diarrhea. Having previously detailed the effects of protein deficiency on both microbiome and metabolome in this model, we now describe the specific gut microbial and biochemical effects of Cryptosporidium infection. Protein-deficient mice were infected with Cryptosporidium parvum oocysts for 6-13 days and compared with uninfected controls. Following infection, there was an increase in the urinary excretion of choline- and amino-acid-derived metabolites...
July 1, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28490352/a-diagnostic-biomarker-profile-for-fibromyalgia-syndrome-based-on-an-nmr-metabolomics-study-of-selected-patients-and-controls
#19
Bontle G Malatji, Helgard Meyer, Shayne Mason, Udo F H Engelke, Ron A Wevers, Mari van Reenen, Carolus J Reinecke
BACKGROUND: Fibromyalgia syndrome (FMS) is a chronic pain syndrome. A plausible pathogenesis of the disease is uncertain and the pursuit of measurable biomarkers for objective identification of affected individuals is a continuing endeavour in FMS research. Our objective was to perform an explorative metabolomics study (1) to elucidate the global urinary metabolite profile of patients suffering from FMS, and (2) to explore the potential of this metabolite information to augment existing medical practice in diagnosing the disease...
May 11, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28467757/the-female-urinary-microbiota-microbiome-clinical-and-research-implications
#20
Linda Brubaker, Alan J Wolfe
The changing science of the urinary microbiota and microbiome has both clinical and research implications. This review paper provides an overview of the state of this science, as well as a discussion of the potential for prevention, diagnosis, and treatment of human disease. The history of techniques used for clinical detection of infection are placed into context along with the modern methods of bacterial detection and identification.
April 28, 2017: Rambam Maimonides Medical Journal
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