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https://www.readbyqxmd.com/read/29150672/fmnh2-dependent-monooxygenases-initiate-catabolism-of-sulfonamides-in-microbacterium-sp-strain-br1-subsisting-on-sulfonamide-antibiotics
#1
Benjamin Ricken, Boris A Kolvenbach, Christian Bergesch, Dirk Benndorf, Kevin Kroll, Hynek Strnad, Čestmír Vlček, Ricardo Adaixo, Frederik Hammes, Patrick Shahgaldian, Andreas Schäffer, Hans-Peter E Kohler, Philippe F-X Corvini
We report a cluster of genes encoding two monooxygenases (SadA and SadB) and one FMN reductase (SadC) that enable Microbacterium sp. strain BR1 and other Actinomycetes to inactivate sulfonamide antibiotics. Our results show that SadA and SadC are responsible for the initial attack of sulfonamide molecules resulting in the release of 4-aminophenol. The latter is further transformed into 1,2,4-trihydroxybenzene by SadB and SadC prior to mineralization and concomitant production of biomass. As the degradation products lack antibiotic activity, the presence of SadA will result in an alleviated bacteriostatic effect of sulfonamides...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29149281/seroreactivity-to-the-c6-peptide-in-borrelia-miyamotoi-infections-occurring-in-the-northeastern-united-states
#2
Phillip J Molloy, Karen E Weeks, Brittany Todd, Gary P Wormser
Background: There are no Food and Drug Administration (FDA) approved diagnostic tests for Borrelia miyamotoi infection, an emerging tick-borne illness in the United States. The purpose of this study was to evaluate whether the FDA-approved C6 peptide ELISA currently used to diagnose Lyme disease may potentially serve as a diagnostic test for B. miyamotoi infections. Methods: Serum specimens from 30 patients from the Northeastern United States with B. miyamotoi infection established by a polymerase chain reaction assay of a blood specimen were tested using the C6 ELISA...
November 15, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29148834/respiratory-phagocytes-are-implicated-in-enhanced-colibacillosis-in-chickens-co-infected-with-influenza-virus-h9n2-and-esherichia-coli
#3
J Wang, Y Li, Y Yin
1. The aim of this study was to determine the most likely time interval after infection with influenza virus H9N2 for co-infection with Escherichia coli to cause colibacillosis, the importance of lung load of E. coli and the involvement of respiratory phagocytes. 2. Specific pathogen free chickens were inoculated intranasally with 10(6) EID50 of influenza virus or uninfected. After specified time intervals, 10(7) CFU E. coli or phosphate-buffered saline was inoculated. The presence of lesions, the number of respiratory phagocytes in the respiratory lavage fluid and the E...
November 17, 2017: British Poultry Science
https://www.readbyqxmd.com/read/29146608/closing-the-gap-in-surveillance-of-tuberculosis-and-hiv-co-infection-a-european-perspective-on-the-need-for-clinician-public-health-alliances
#4
EDITORIAL
Marieke J van der Werf, Giovanni Sotgiu, Masoud Dara
No abstract text is available yet for this article.
November 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29145875/re-visiting-the-detection-of-porcine-cysticercosis-based-on-full-carcass-dissections-of-naturally-taenia-solium-infected-pigs
#5
Mwelwa Chembensofu, K E Mwape, I Van Damme, E Hobbs, I K Phiri, M Masuku, G Zulu, A Colston, A L Willingham, B Devleesschauwer, A Van Hul, A Chota, N Speybroeck, D Berkvens, P Dorny, S Gabriël
BACKGROUND: Taenia solium is a neglected zoonotic parasite. The performances of existing tools for the diagnosis of porcine cysticercosis need further assessment, and their shortcomings call for alternatives. The objective of this study was to evaluate the performance of tongue palpation and circulating antigen detection for the detection of porcine cysticercosis in naturally infected pigs of slaughter age compared to full carcass dissections (considered the gold standard). Additionally, alternative postmortem dissection procedures were investigated...
November 16, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29145609/the-differential-effects-of-hiv-and-hcv-on-bone-micro-architecture-and-fracture-risk
#6
Roger J Bedimo, Beverley Adams-Huet, John Poindexter, Geri Brown, Irfan Farukhi, Rosinda Castanon, Diana Turner, Teresa Moore, Pablo Tebas, Naim M Maalouf
Background: HIV/HCV co-infected subjects have a significantly greater osteoporotic fracture risk than HIV-infected, despite the fact that HIV/HCV co-infection has not been associated with lower bone mineral density (BMD) than HIV or HCV alone. We evaluated if changes in bone microarchitecture , measured by trabecular bone score (TBS) could explain these differences. Design: We performed a prospective, cross-sectional cohort study of virologically suppressed HIV, untreated HCV, HIV/HCV co-infected and non-infected controls...
November 14, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29143908/the-hp10-taenia-monoclonal-antibody-based-elisa-detects-a-similar-protein-in-the-vesicular-fluid-of-taenia-hydatigena
#7
Maria M Cortez, Glenda C Rojas, R Michael E Parkhouse
Diagnosis of Taenia solium cysticercosis in endemic rural communities depends on serological tests, as typically there is no access to imaging facilities. The HP10 antigen ELISA (HP10 Ag ELISA), which detects a high molecular weight secreted protein of viable metacestodes, has been employed for the diagnosis of both human and porcine cysticercosis in such communities. In this communication, we formally demonstrate that the HP10 Ag ELISA, already known to function for the detection of T. saginata and T. solium cysticercosis, also detects a similar high molecular weight antigen of T...
November 16, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29143625/trends-in-hepatitis-b-virus-testing-practices-and-management-in-hiv-clinics-across-sub-saharan-africa
#8
REVIEW
Patrick A Coffie, Matthias Egger, Michael J Vinikoor, Marcel Zannou, Lameck Diero, Akouda Patassi, Mark H Kuniholm, Moussa Seydi, Guillaume Bado, Ponsiano Ocama, Monique I Andersson, Eugène Messou, Albert Minga, Philippa Easterbrook, Kathryn Anastos, François Dabis, Gilles Wandeler
BACKGROUND: Approximately 8% of HIV-infected individuals are co-infected with hepatitis B virus (HBV) in sub-Saharan Africa (SSA). Knowledge of HBV status is important to guide optimal selection of antiretroviral therapy (ART) and monitor/prevent liver-related complications. We describe changes in testing practices and management of HBV infection over a 3-year period in HIV clinics across SSA. METHODS: A medical chart review was conducted in large urban HIV treatment centers in Côte d'Ivoire (3 sites), Benin, Burkina Faso, Cameroon, Kenya, Senegal, South Africa, Togo, Uganda and Zambia (1 site each)...
November 1, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29143615/diagnostic-accuracy-of-tests-to-detect-hepatitis-c-antibody-a-meta-analysis-and-review-of-the-literature
#9
Weiming Tang, Wen Chen, Ali Amini, Debi Boeras, Jane Falconer, Helen Kelly, Rosanna Peeling, Olivia Varsaneux, Joseph D Tucker, Philippa Easterbrook
BACKGROUND: Although direct-acting antivirals can achieve sustained virological response rates greater than 90% in Hepatitis C Virus (HCV) infected persons, at present the majority of HCV-infected individuals remain undiagnosed and therefore untreated. While there are a wide range of HCV serological tests available, there is a lack of formal assessment of their diagnostic performance. We undertook a systematic review and meta-analysis to evaluate he diagnostic accuracy of available rapid diagnostic tests (RDT) and laboratory based EIA assays in detecting antibodies to HCV...
November 1, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29143407/emerging-role-of-viral-and-bacterial-co-infection-in-early-childhood
#10
EDITORIAL
Paul T King, Jim Buttery
No abstract text is available yet for this article.
November 16, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29141712/clinical-outcomes-during-treatment-interruptions-in-human-immunodeficiency-virus-hepatitis-b-virus-co-infected-patients-from-sub-saharan-africa
#11
Anders Boyd, Laura Houghtaling, Raoul Moh, Mariama Abdou Chekaraou, Delphine Gabillard, Serge Paul Eholié, Xavier Anglaret, Fabien Zoulim, Christine Danel, Karine Lacombe, For The Anrs Trivacan And Anrs VarBVA Studies
Antiretroviral treatment (ART) interruptions increase the risk of severe morbidity/mortality in human immunodeficiency virus (HIV)-infected individuals from subSaharan Africa. We aimed to determine whether the risk is further increased among HIV-hepatitis B virus (HBV) co-infected patients in this setting. In this sub-analysis of a randomized-control trial, 632 participants from Côte d'Ivoire randomized to receive continuous-ART (C-ART), structured ART interruptions of 2-months off, 4-months on (2/4-ART), and CD4-guided ART interruptions (CD4GT, interruption at 350/mm(3) and reintroduction at 250/mm(3)) were analyzed...
October 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29140875/bone-mineral-density-declines-twice-as-quickly-among-hiv-infected-women-compared-to-men
#12
Kristine M Erlandson, Jordan E Lake, Myung Sim, Julian Falutz, Carla M Prado, Ana Rita Domingues da Silva, Todd T Brown, Giovanni Guaraldi
BACKGROUND: Initial declines in bone mineral density (BMD) following antiretroviral therapy (ART) initiation in HIV are well described, but data on long-term changes and risk factors for decline, particularly among women, are limited. METHODS: HIV-infected men and women in the Modena Metabolic Clinic underwent dual-energy X-ray absorptiometry (DXA) scans every 6-12 months for up to 10 years (median 4.6 years). Mixed effect regression model in combined and sex-stratified models determined annual rates of decline and clinical factors associated with BMD...
November 11, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29138961/blastocystis-subtypes-isolated-from-irritable-bowel-syndrome-patients-and-co-infection-with-helicobacter-pylori
#13
Ayman A El-Badry, Wegdan M Abd El Wahab, Doaa A Hamdy, Alaa Aboud
Irritable bowel syndrome (IBS) is a chronic functional gastrointestinal disease presenting clinically by abdominal pain with alteration of bowel habits. Although IBS has uncertain etiology, chronic gut inflammation due to persistent exposure to an infectious agent including Blastocystis sp. was proposed. The aim of this study was to detect the prevalence of Blastocystis sp. subtype (ST) isolated from stool of IBS patients and to assess Blastocystis sp. and H. pylori co-infection in IBS patients from Beni-Suef Governorate, Egypt...
November 14, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29136744/-factors-associated-with-syphilis-hiv-infection-among-men-who-have-sex-with-men-in-shenzhen-2011-2016
#14
Y M Cai, Y J Song, H Liu, F C Hong
Objective: To investigate the factors associated with syphilis/HIV infection among men who have sex with men (MSM) maintaining a single sexual partner in Shenzhen. Methods: Respondent driven sampling and snowball sampling method were used to recruit MSM receiving voluntary counseling and testing in Shenzhen Rainbow clinic from 2011 to 2016. INCLUSION CRITERIA: aged 18 years and above; reported having one or more anal sexual partners in the recent 6 months. A total of 3 109 men who have sex with men (MSM) were involved in the study...
November 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29136036/correction-occurrence-of-leishmania-infantum-in-the-central-nervous-system-of-naturally-infected-dogs-parasite-load-viability-co-infections-and-histological-alterations
#15
https://www.readbyqxmd.com/read/29136011/ten-year-experience-with-antiretroviral-treatment-in-cambodia-trends-in-patient-characteristics-and-treatment-outcomes
#16
Phirum Lay, Sokkab An, Sunpiseth Soeung, Pich Sovannary Srey, Sopheak Thai, Lutgarde Lynen, Johan van Griensven
BACKGROUND: Although HIV disease stage at ART initiation critically determines ART outcomes, few reports have longitudinally monitored this within Asia. Using prospectively collected data from a large ART program at Sihanouk Hospital Center of Hope in Cambodia, we report on the change in patient characteristics and outcomes over a ten-year period. METHODS: We conducted a retrospective analysis including all adults (≥ 18 years old) starting ART from March 2003-March 2013 in a non-governmental hospital in Phnom Penh, Cambodia...
2017: PloS One
https://www.readbyqxmd.com/read/29135988/evolution-of-acute-hepatitis-c-virus-infection-in-a-large-european-city-trends-and-new-patterns
#17
César Garriga, Sandra Manzanares-Laya, Patricia García de Olalla, Pilar Gorrindo, Sabela Lens, Ricard Solà, María Martínez-Rebollar, Montserrat Laguno, Jordi Navarro, Xavier Torras, Mercè Gurguí, María-Jesús Barberá, Josep Quer, Eva Masdeu, Pere Simón, Miriam Ros, Anna de Andrés, Joan A Caylà
The aims of this study were to describe the evolution of acute hepatitis C virus (HCV) infections since 2004 and to determine its associated factors. Acute HCV infections diagnosed in Barcelona from 2004 to 2015 were included. Incidence ratios (IR) were then estimated for sex and age groups. Cases were grouped between 2004-2005, 2006-2011 and 2012-2015, and their incidence rate ratios (IRR) were calculated. In addition, risk factors for acute HCV infection were identified using multinomial logistic regression for complete, available and multiple imputed data...
2017: PloS One
https://www.readbyqxmd.com/read/29135655/neutrophil-activation-and-enhanced-release-of-granule-products-in-hiv-tb-immune-reconstitution-inflammatory-syndrome
#18
Justine K Nakiwala, Naomi F Walker, Collin R Diedrich, William Worodria, Graeme Meintjes, Robert J Wilkinson, Harriet Mayanja-Kizza, Robert Colebunders, Luc Kestens, Katalin A Wilkinson, David M Lowe
BACKGROUND: Tuberculosis Immune Reconstitution Inflammatory Syndrome (TB-IRIS) remains incompletely understood. Neutrophils are implicated in tuberculosis pathology but detailed investigations in TB-IRIS are lacking. We sought to further explore the biology of TB-IRIS and in particular the role of neutrophils. SETTING: Two observational, prospective cohort studies in HIV/TB co-infected patients starting antiretroviral therapy, one to analyze gene expression and subsequently one to explore neutrophil biology...
November 6, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29134777/epidemiological-investigation-of-h9-avian-influenza-virus-newcastle-disease-virus-tembusu-virus-goose-parvovirus-and-goose-circovirus-infection-of-geese-in-china
#19
X Niu, H Wang, L Wei, M Zhang, J Yang, H Chen, Y Tang, Y Diao
To deepen the knowledge about epidemic prevalence in the goose breeding field, a triplex PCR assay was established, and 478 samples were collected from scaled goose farms in 11 provinces in China. The results of this epidemiological investigation showed that incidence rates of H9 avian influenza and goose circovirus were the highest among five infectious diseases that were evaluated. In addition, the triplex PCR assay established remarkable sensitivity, rapidity and versatility compared to other diagnostic methods...
November 13, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29134150/hcv-core-antigen-is-an-alternative-marker-to-hcv-rna-for-evaluating-active-hcv-infection-implications-for-improved-diagnostic-option-in-an-era-of-affordable-daas
#20
Rujipat Wasitthankasem, Preeyaporn Vichaiwattana, Chompoonut Auphimai, Nipaporn Siripon, Sirapa Klinfueng, Pisit Tangkijvanich, Sompong Vongpunsawad, Yong Poovorawan
The core antigen of the hepatitis C virus (HCV Ag) presents an alternative marker to HCV RNA when screening patients for HCV viremia. This study sought to evaluate the utility of HCV Ag as a marker to assess active HCV infection in individuals residing in an HCV-endemic area. From 298 HCV-seropositive individuals evaluated for the presence of anti-HCV antibody, HCV Ag and HCV RNA, anti-HCV antibody was detected in 252 individuals (signal-to-cutoff ratios ≥5), HCV RNA was detected in 222 individuals (88%), and HCV Ag was reactive (≥3 fmol/L) in 220 individuals (87%)...
2017: PeerJ
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