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https://www.readbyqxmd.com/read/28632114/enterococcus-crotali-sp-nov-isolated-from-faecal-material-of-a-timber-rattlesnake
#1
Richard W McLaughlin, Patricia Lynn Shewmaker, Anne M Whitney, Ben W Humrighouse, Ana C Lauer, Vladimir N Loparev, Christopher A Gulvik, P A Cochran, Scot E Dowd
A facultatively anaerobic, Gram-stain-positive bacterium, designated ETRF1T, was found in faecal material of a timber rattlesnake (Crotalus horridus). Based on a comparative 16S rRNA gene sequence analysis, the isolate was assigned to the genus Enterococcus. The 16S rRNA gene sequence of strain ETRF1T showed >97 % similarity to that of the type strains of Enterococcus rotai, E. caccae, E. silesiacus, E haemoperoxidus, E. ureasiticus, E. moraviensis, E. plantarum, E. quebecensis, E. ureilyticus, E. termitis, E...
June 20, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28617525/characterization-of-high-exopolysaccharide-producing-lactobacillus-strains-isolated-from-mustard-pickles-for-potential-probiotic-applications
#2
Jing-Yao Huang, Cheng-Yen Kao, We-Sin Liu, Tony J Fang
The aim of this study was to characterize high exopolysaccharide (EPS)-producing lactic acid bacteria (LAB) isolated from mustard pickles in Taiwan for potential probiotic applications. Among 39 collected LAB strains, four most productive EPS-producing strains were selected for further analysis. Comparative analyses of 16S rDNA genes rpoA and pheS sequences demonstrated that these strains were members of Lactobacillus plantarum-group (LPG). NCD 2, NLD 4, SLC 13, and NLD 16 showed survival rates of 95.83% ± 0...
June 2017: International Microbiology: the Official Journal of the Spanish Society for Microbiology
https://www.readbyqxmd.com/read/28580550/magnetic-signature-geochemistry-and-oral-bioaccessibility-of-technogenic-metals-in-contaminated-industrial-soils-from-sindos-industrial-area-northern-greece
#3
Anna Bourliva, Lambrini Papadopoulou, Elina Aidona, Katerina Giouri
The objective of this study was to assess the contamination level of potentially harmful elements (PHEs) in industrial soils and how this relates to environmental magnetism. Moreover, emphasis was given to the determination of the potential mobile fractions of typically "technogenic" metals. Therefore, magnetic and geochemical parameters were determined in topsoils (0-20 cm) collected around a chemical industry in Sindos Industrial Area, Thessaloniki, Greece. Soil samples were presented significantly enriched in "technogenic" metals such Cd, Pb, and Zn, while cases of severe soil contamination were observed in sampling sites north-west of the industrial unit...
June 4, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28573602/cognitive-reserve-is-a-resilience-factor-for-cognitive-dysfunction-in-hepatic-encephalopathy
#4
Piero Amodio, Sara Montagnese, Giuseppe Spinelli, Sami Schiff, Daniela Mapelli
Cognitive Reserve (CR) modulates symptoms of brain disease. The aim of this study was: to evaluate the effect of CR on cognition in cirrhosis and on the mismatch between cognitive and neurophysiologic assessment of hepatic encephalopathy (HE). Eighty-two outpatient patients with cirrhosis without overt HE were studied [73% males; age: 62 (54-68) (median, interq. range) yrs.; education: 8 (6-13) yrs.]. The Psychometric Hepatic Encephalopathy Score (PHES) was used as cognitive measure of HE. The spectral analysis of the electroencephalogram (EEG) was used as neurophysiologic measure of HE...
June 2, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28557520/periodic-health-examinations-and-missed-opportunities-among-patients-likely-needing-mental-health-care
#5
Ming Tai-Seale, Laura A Hatfield, Caroline J Wilson, Cheryl D Stults, Thomas G McGuire, Lisa C Diamond, Richard M Frankel, Lisa MacLean, Ashley Stone, Jennifer Elston Lafata
OBJECTIVES: Periodic health examinations (PHEs) are the most common reason adults see primary care providers. It is unknown if PHEs serve as a "safe portal" for patients with mental health needs to initiate care. We examined how physician communication styles impact mental health service delivery in PHEs. STUDY DESIGN: Retrospective observational study using audio-recordings of 255 PHEs with patients likely to need mental health care. METHODS: Mixed-methods examined the timing of a mental health discussion (MHD), its quality, and the relationship between MHD quality and physician practice styles...
October 1, 2016: American Journal of Managed Care
https://www.readbyqxmd.com/read/28499087/identification-of-intrahelical-bifurcated-h-bonds-as-a-new-type-of-gate-in-k-channels
#6
Oliver Rauh, Martin Urban, Leonhard M Henkes, Tobias Winterstein, Timo Greiner, James L Van Etten, Anna Moroni, Stefan M Kast, Gerhard Thiel, Indra Schroeder
Gating of ion channels is based on structural transitions between open and closed states. To uncover the chemical basis of individual gates, we performed a comparative experimental and computational analysis between two K(+) channels, KcvS and KcvNTS. These small viral encoded K(+) channel proteins, with a monomer size of only 82 amino acids, resemble the pore module of all complex K(+) channels in terms of structure and function. Even though both proteins share about 90% amino acid sequence identity, they exhibit different open probabilities with ca...
June 7, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28406121/normalization-of-the-psychometric-hepatic-encephalopathy-score-for-diagnosis-of-minimal-hepatic-encephalopathy-in-turkey
#7
Bdo Coskun, M Ozen, S Gursoy, O Ozbakir, O K Poyrazoglu, M Baskol, G C Sezgin, M Yucesoy
AIM: To construct normal values for the tests of the psychometric hepatic encephalopathy score (PHES) and evaluate the prevalence of minimal hepatic encephalopathy (MHE) among Turkish patients with liver cirrhosis. MATERIALS AND METHODS: One hundred and eighty-five healthy subjects and sixty patients with liver cirrhosis without overt hepatic encephalopathy were included in the study. All subjects underwent psychometric tests, which include number connection test-A and B (NCT-A/B), serial dotting test (DST), line drawing test (LDT), and digit symbol test (DST) in the same day...
April 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28316320/critical-flicker-frequency-test-for-diagnosing-minimal-hepatic-encephalopathy-in-patients-with-cirrhosis
#8
Banu Demet Özel Coşkun, Mustafa Özen
BACKGROUND/AIMS: The critical flicker frequency (CFF) and psychometric hepatic encephalopathy score (PHES) are commonly proposed tests for detecting minimal hepatic encephalopathy (MHE); however, no studies have examined their value for detecting MHE in Turkey. MATERIALS AND METHODS: A total of 70 patients with cirrhosis without overt HE, 205 controls for PHES, and 100 controls for the CFF test were included. All the patients underwent the PHES and CFF tests during the same session...
May 2017: Turkish Journal of Gastroenterology: the Official Journal of Turkish Society of Gastroenterology
https://www.readbyqxmd.com/read/28271528/the-animal-naming-test-an-easy-tool-for-the-assessment-of-hepatic-encephalopathy
#9
Francesca Campagna, Sara Montagnese, Lorenzo Ridola, Marco Senzolo, Sami Schiff, Michele De Rui, Chiara Pasquale, Silvia Nardelli, Ilaria Pentassuglio, Carlo Merkel, Paolo Angeli, Oliviero Riggio, Piero Amodio
Screening for hepatic encephalopathy (HE) that does not cause obvious disorientation or asterixis (minimal HE [MHE]/grade 1 HE) is important. We examined if the animal naming test (ANT1 ) (maximum number of animals listed in 1 minute) is useful in this context. In total, 208 healthy controls, 40 controls with inflammatory bowel disease, and 327 consecutive patients with cirrhosis underwent the ANT1 . Patients were tested for MHE by the psychometric HE score, and 146 were assessed by electroencephalography; 202 patients were followed up regarding the occurrence of overt HE and death...
July 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28265787/isolation-and-characterisation-of-an-enterocin-p-producing-enterococcus-lactis-strain-from-a-fresh-shrimp-penaeus-vannamei
#10
Olfa Ben Braïek, Hamdi Ghomrassi, Paola Cremonesi, Stefano Morandi, Yannick Fleury, Patrick Le Chevalier, Khaled Hani, Omrane Bel Hadj, Taoufik Ghrairi
Screening for lactic acid bacteria (LAB) from fresh shrimp samples (Penaeus vannamei) collected from retail seafood markets in the Tunisian's coast, resulted in the isolation of an Enterococcus strain termed Q1. This strain was selected for its antagonistic activity against pathogenic bacteria such as Listeria monocytogenes, Pseudomonas aeruginosa, Lactococcus garvieae and against fungi (Aspergillus niger and Fusarium equiseti). The Q1 strain was characterised using standard morphological and biochemical tests, growth assays at different temperatures, pH and salinity...
March 7, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28240840/liver-transplant-modulates-gut-microbial-dysbiosis-and-cognitive-function-in-cirrhosis
#11
Jasmohan S Bajaj, Andrew Fagan, Masoumeh Sikaroodi, Melanie B White, Richard K Sterling, HoChong Gilles, Douglas Heuman, R T Stravitz, Scott C Matherly, Mohammed S Siddiqui, Puneet Puri, Arun J Sanyal, Velimir Luketic, Binu John, Michael Fuchs, Vishwadeep Ahluwalia, Patrick M Gillevet
Liver transplant (LT) improves daily function and cognition in cirrhosis but a subset can remain impaired. Unfavorable microbiota or dysbiosis is observed in cirrhosis but the effect of LT on microbial composition; especially with poor post-LT cognition, is unclear. AIMS: (1) determine the effect of LT on gut microbiota and (b) to determine whether gut microbiota are associated with cognitive dysfunction post-LT. We enrolled outpatient cirrhotics on the LT list and followed them till 6 months post-LT...
February 27, 2017: Liver Transplantation
https://www.readbyqxmd.com/read/28235746/exploring-the-binding-sites-of-staphylococcus-aureus-phenylalanine-trna-synthetase-a-homology-model-approach
#12
Samar S Elbaramawi, Samy M Ibrahim, El-Sayed M Lashine, Mohamed E El-Sadek, Efi Mantzourani, Claire Simons
Increased resistance of MRSA (multidrug resistance Staphylococcus aureus) to anti-infective drugs is a threat to global health necessitating the development of anti-infectives with novel mechanisms of action. Phenylalanine tRNA synthetase (PheRS) is a unique enzyme of the aminoacyl-tRNA synthetases (aaRSs), which are essential enzymes for protein biosynthesis. PheRS is an (αb)2 tetrameric enzyme composed of two alpha subunits (PheS) and two larger beta subunits (PheT). Our potential target in the drug development for the treatment of MRSA infections is the phenylalanine tRNA synthetase alpha subunit that contains the binding site for the natural substrate...
May 2017: Journal of Molecular Graphics & Modelling
https://www.readbyqxmd.com/read/28229214/diversity-of-lactic-acid-bacteria-associated-with-banana-fruits-in-taiwan
#13
Yi-Sheng Chen, Yu-Jou Liao, Yi-Shan Lan, Hui-Chung Wu, Fujitoshi Yanagida
Banana is a popular fruit worldwide. The lactic acid bacteria (LAB) microflora in banana fruits has not been studied in detail. A total of 164 LAB were isolated from banana fruits in Taiwan. These isolates were initially divided into nine groups (r1 to r9) using restriction fragment length polymorphism analysis and 16S ribosomal DNA sequencing. Isolates belonging to Lactobacillus plantarum group were further divided into three additional groups using multiplex PCR assay targeting the recA gene. The most common bacterial genera found in banana fruits were Lactobacillus and Weissella...
April 2017: Current Microbiology
https://www.readbyqxmd.com/read/28146589/the-phes-battery-does-not-detect-all-cirrhotic-patients-with-early-neurological-deficits-which-are-different-in-different-patients
#14
Carla Giménez-Garzó, Juan José Garcés, Amparo Urios, Alba Mangas-Losada, Raquel García-García, Olga González-López, Remedios Giner-Durán, Desamparados Escudero-García, Miguel Angel Serra, Emilio Soria, Vicente Felipo, Carmina Montoliu
BACKGROUND AND AIMS: The psychometric hepatic encephalopathy score (PHES) is the "gold standard" for minimal hepatic encephalopathy (MHE) diagnosis. Some reports suggest that some cirrhotic patients "without" MHE according to PHES show neurological deficits and other reports that neurological alterations are not homogeneous in all cirrhotic patients. This work aimed to assess whether: 1) a relevant proportion of cirrhotic patients show neurological deficits not detected by PHES; 2) cirrhotic patients with mild neurological deficits are a homogeneous population or may be classified in sub-groups according to specific deficits...
2017: PloS One
https://www.readbyqxmd.com/read/28070704/sleep-disturbances-in-patients-of-liver-cirrhosis-with-minimal-hepatic-encephalopathy-before-and-after-lactulose-therapy
#15
Jatinderpal Singh, Barjesh Chander Sharma, Vinod Puri, Sanjeev Sachdeva, Siddharth Srivastava
Sleep disturbances are common in patients of cirrhosis with minimal hepatic encephalopathy (MHE) and affect health related quality of life (HRQOL). No study has evaluated effect of lactulose on sleep disturbances and correlation with HRQOL in patients with MHE. We assessed sleep disturbances in cirrhosis with MHE and effect of lactulose on sleep disturbances and HRQOL. One hundred patients of cirrhosis [MHE; (n = 50, age 45.3 ± 11.2 years, 45 males) no-MHE (n = 50, age 46.3 ± 10.4 years, 44 males)] were included...
April 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28039670/hepatic-encephalopathy-is-associated-with-persistent-learning-impairments-despite-adequate-medical-treatment-a-multicenter-international-study
#16
Silvia Nardelli, Sanath Allampati, Oliviero Riggio, Kevin D Mullen, Ravi Prakash, Stefania Gioia, Ariel Unser, Melanie B White, Andrew C Fagan, James B Wade, Alessio Farcomeni, Edith A Gavis, Jasmohan S Bajaj
BACKGROUND: Hepatic encephalopathy (HE) is considered reversible regarding mental status but may not be cognitively in single-center studies. AIM: To evaluate persistence of learning impairment in prior HE compared to those who never experienced HE (no-HE) in a multicenter study. METHODS: A total of 174 outpatient cirrhotics from three centers (94 Virginia, 30 Ohio, and 50 Rome; 36 prior HE) underwent psychometric hepatic encephalopathy score (PHES) and inhibitory control (ICT) testing at baseline and then at least 7 days apart...
December 30, 2016: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28039138/an-effective-counterselection-system-for-listeria-monocytogenes-and-its-use-to-characterize-the-monocin-genomic-region-of-strain-10403s
#17
Tal Argov, Lev Rabinovich, Nadejda Sigal, Anat A Herskovits
Construction of Listeria monocytogenes mutants by allelic exchange has been laborious and time-consuming due to lack of proficient selection markers for the final recombination event, that is, a marker conveying substance sensitivity to the bacteria bearing it, enabling the exclusion of merodiploids and selection for plasmid loss. In order to address this issue, we engineered a counterselection marker based on a mutated phenylalanyl-tRNA synthetase gene (pheS*). This mutation renders the phenylalanine-binding site of the enzyme more promiscuous and allows the binding of the toxic p-chloro-phenylalanine analog (p-Cl-phe) as a substrate...
March 15, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28005487/perinatal-hiv-exposure-surveillance-and-reporting-in-the-united-states-2014
#18
Kathleen A Brady, Deborah S Storm, Azita Naghdi, Toni Frederick, Jessica Fridge, Mary Jo Hoyt
OBJECTIVE: We sought to describe the current status of perinatal HIV exposure surveillance (PHES) activities and regulations in the United States and to make recommendations to strengthen PHES. METHODS: In 2014, we sent an online survey to health departments in the 50 states, District of Columbia, Puerto Rico, Virgin Islands, and 6 cities and counties (Chicago, Illinois; Houston, Texas; Los Angeles, California; New York, New York; Philadelphia, Pennsylvania; and San Francisco, California)...
January 2017: Public Health Reports
https://www.readbyqxmd.com/read/27988985/altered-postural-control-and-stability-in-cirrhotic-patients-with-minimal-hepatic-encephalopathy-correlate-with-cognitive-deficits
#19
Amparo Urios, Alba Mangas-Losada, Carla Gimenez-Garzó, Olga González-López, Remedios Giner-Durán, Miguel A Serra, Enrique Noe, Vicente Felipo, Carmina Montoliu
BACKGROUND & AIMS: Cognitive dysfunction in cirrhotic patients with minimal hepatic encephalopathy (MHE) is associated with falls. Alterations in postural control and stability could contribute to increase falls risk in these patients. We aimed to assess whether postural control and direction-specific limits of stability are altered in cirrhotic patients with MHE compared to patients without MHE and controls. We also assessed if alterations in postural control correlate with neurological impairment and/or blood biomarkers...
December 18, 2016: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/27981305/association-of-enteric-protist-blastocystis-spp-and-gut-microbiota-with-hepatic-encephalopathy
#20
Sedat Yildiz, İbrahim Doğan, Funda Doğruman-Al, Ufuk Nalbantoğlu, Duran Üstek, Fakhriddin Sarzhanov, Süleyman Yildirim
BACKGROUND AND AIMS: Hepatic encephalopathy (HE) is a serious neuropsychiatric sequela emerging in the advanced stages of cirrhosis. The gut microbiota plays an important role in the development of HE. The aim of the study was to analyze the dynamic interplay between microbiota and Blastocystis in cirrhotic patients with or without encephalopathy. METHODS: The study was designed as cross-sectional study. A total of 37 patients from the Ankara city, admitted to the University Hospital within a 6-month period prior to enrolment into the study were included in the study...
December 2016: Journal of Gastrointestinal and Liver Diseases: JGLD
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