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https://www.readbyqxmd.com/read/28742991/sexual-inactivity-and-occurrence-of-stis-in-relation-to-weight-status-in-women-two-large-population-based-studies
#1
Vibeke B Gunge, Kirsten E Juul, Adriaan Jc van den Brule, Thomas Iftner, Susanne K Kjær
The aim of this study was to examine sexual inactivity and occurrence of selected sexually transmitted infections in relation to body mass index. We used data from two large Danish population-based cross-sectional studies conducted in 1991-1995 (HPV-study: 6869 women, aged 22-32 years) and in 2004-2005 (Liva-study: 19,484 women, aged 18-45 years). Data were collected using a structured interview and measured weight, height, high-risk human papillomavirus DNA, Chlamydia DNA for the HPV-study and a structured questionnaire for the Liva-study...
July 25, 2017: Women & Health
https://www.readbyqxmd.com/read/28742861/targeting-the-permeability-barrier-and-peptidoglycan-recycling-pathways-to-disarm-pseudomonas-aeruginosa-against-the-innate-immune-system
#2
Gabriel Torrens, Marcelo Pérez-Gallego, Bartolomé Moya, Marta Munar-Bestard, Laura Zamorano, Gabriel Cabot, Jesús Blázquez, Juan A Ayala, Antonio Oliver, Carlos Juan
Antimicrobial resistance is a continuously increasing threat that severely compromises our antibiotic arsenal and causes thousands of deaths due to hospital-acquired infections by pathogens such as Pseudomonas aeruginosa, situation further aggravated by the limited development of new antibiotics. Thus, alternative strategies such as those targeting bacterial resistance mechanisms, virulence or potentiating the activity of our immune system resources are urgently needed. We have recently shown that mutations simultaneously causing the peptidoglycan recycling blockage and the β-lactamase AmpC overexpression impair the virulence of P...
2017: PloS One
https://www.readbyqxmd.com/read/28742857/dna-immunisation-with-dengue-virus-e-protein-domains-i-ii-but-not-domain-iii-enhances-zika-west-nile-and-yellow-fever-virus-infection
#3
Jose L Slon Campos, Monica Poggianella, Sara Marchese, Monica Mossenta, Jyoti Rana, Francesca Arnoldi, Marco Bestagno, Oscar R Burrone
Dengue virus (DENV), the causative agent of dengue disease, is among the most important mosquito-borne pathogens worldwide. DENV is composed of four closely related serotypes and belongs to the Flaviviridae family alongside other important arthropod-borne viral pathogens such as Zika virus (ZIKV), West Nile virus (WNV) and Yellow Fever virus (YFV). After infection, the antibody response is mostly directed to the viral E glycoprotein which is composed of three structural domains named DI, DII and DIII that share variable degrees of homology among different viruses...
2017: PloS One
https://www.readbyqxmd.com/read/28742826/macromolecular-biosynthetic-parameters-and-metabolic-profile-in-different-life-stages-of-leishmania-braziliensis-amastigotes-as-a-functionally-less-active-stage
#4
Marlene Jara, Maya Berg, Guy Caljon, Geraldine de Muylder, Bart Cuypers, Denis Castillo, Ilse Maes, María Del Carmen Orozco, Manu Vanaerschot, Jean-Claude Dujardin, Jorge Arevalo
It was recently hypothesized that Leishmania amastigotes could constitute a semi-quiescent stage characterized by low replication and reduced metabolic activity. This concept developed with Leishmania (Leishmania) mexicana and Leishmania (Leishmania) major models might explain numerous clinical and sub-clinical features of Leishmania (Viannia) braziliensis infections, like reactivation of the disease, non-response to chemotherapy or asymptomatic infections. We compared here in vitro the proliferative capability of L...
2017: PloS One
https://www.readbyqxmd.com/read/28742818/first-identification-of-a-recombinant-form-of-hepatitis-c-virus-in-austrian-patients-by-full-genome-next-generation-sequencing
#5
Evelyn Stelzl, Bernhard Haas, Bernd Bauer, Sherry Zhang, Ellen H Fiss, Grantland Hillman, Aaron T Hamilton, Rochak Mehta, Marintha L Heil, Ed G Marins, Brigitte I Santner, Harald H Kessler
Hepatitis C virus (HCV) intergenotypic recombinant forms have been reported for various HCV genotypes/subtypes in several countries worldwide. In a recent study, four patients living in Austria had been identified to be possibly infected with a recombinant HCV strain. To clarify results and determine the point of recombination, full-genome next-generation sequencing using the Illumina MiSeq v2 300 cycle kit (Illumina, San Diego, CA, USA) was performed in the present study. Samples of all of the patients contained the recombinant HCV strain 2k/1b...
2017: PloS One
https://www.readbyqxmd.com/read/28742123/molecular-and-maldi-tof-identification-of-ticks-and-tick-associated-bacteria-in-mali
#6
Adama Zan Diarra, Lionel Almeras, Maureen Laroche, Jean-Michel Berenger, Abdoulaye K Koné, Zakaria Bocoum, Abdoulaye Dabo, Ogobara Doumbo, Didier Raoult, Philippe Parola
Ticks are considered the second vector of human and animal diseases after mosquitoes. Therefore, identification of ticks and associated pathogens is an important step in the management of these vectors. In recent years, mass spectrometry of the laser disorder / matrix assisted ionization (MALDI-TOF MS) has been reported as a promising method for the identification of arthropods including ticks. The objective of this study was to improve the conditions for the preparation of tick samples for their identification by MALDI-TOF MS from field-collected ethanol-stored Malian samples and to evaluate the capacity of this technology to distinguish infected and uninfected ticks...
July 24, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28742108/fasting-metabolism-modulates-the-interleukin-12-interleukin-10-cytokine-axis
#7
Johannes J Kovarik, Elisabeth Kernbauer, Markus A Hölzl, Johannes Hofer, Guido A Gualdoni, Klaus G Schmetterer, Fitore Miftari, Yury Sobanov, Anastasia Meshcheryakova, Diana Mechtcheriakova, Nadine Witzeneder, Georg Greiner, Anna Ohradanova-Repic, Petra Waidhofer-Söllner, Marcus D Säemann, Thomas Decker, Gerhard J Zlabinger
A crucial role of cell metabolism in immune cell differentiation and function has been recently established. Growing evidence indicates that metabolic processes impact both, innate and adaptive immunity. Since a down-stream integrator of metabolic alterations, mammalian target of rapamycin (mTOR), is responsible for controlling the balance between pro-inflammatory interleukin (IL)-12 and anti-inflammatory IL-10, we investigated the effect of upstream interference using metabolic modulators on the production of pro- and anti-inflammatory cytokines...
2017: PloS One
https://www.readbyqxmd.com/read/28742001/molecular-cloning-of-porcine-siglec-3-siglec-5-and-siglec-10-and-identification-of-siglec-10-as-an-alternative-receptor-for-porcine-reproductive-and-respiratory-syndrome-virus-prrsv
#8
Jiexiong Xie, Isaura Christiaens, Bo Yang, Wander Van Breedam, Tingting Cui, Hans J Nauwynck
In recent years, several entry mediators have been characterized for porcine reproductive and respiratory syndrome virus (PRRSV). Porcine sialoadhesin [pSn, also known as sialic acid-binding immunoglobulin-type lectin (Siglec-1)] and porcine CD163 (pCD163) have been identified as the most important host entry mediators that can fully coordinate PRRSV infection into macrophages. However, recent isolates have not only shown a tropism for sialoadhesin-positive cells, but also for sialoadhesin-negative cells. This observation might be partly explained by the existence of additional receptors that can support PRRSV binding and entry...
July 26, 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28741738/aspergillus-calidoustus-case-series-and-review-of-the-literature
#9
Justin Seroy, Philip Antiporta, Shellee A Grim, Laurie A Proia, Kamaljit Singh, Nina M Clark
Aspergillus calidoustus, previously classified as Aspergillus ustus, is an emerging pathogen in immunocompromised persons. We describe four recent cases of A. calidoustus and review 37 additional cases of A. calidoustus (n=16) or A. ustus (n=25) published through June 2016. Twenty (49%) cases occurred in patients with hematologic malignancy and/or receipt of hematopoietic cell transplantation, and 13 (32%) occurred in solid organ transplant recipients. Antifungal susceptibility was reported in 49% of cases and in 42% treatment failed...
July 25, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28741682/strengthening-the-laboratory-diagnosis-of-infections-caused-by-pathogenic-corynebacterium-species-in-the-vaccine-era
#10
REVIEW
Suresh Kumar Rajamani Sekar, Balaji Veeraraghavan, Shalini Anandan, Naveen Kumar Devanga Ragupathi, Lucky Sangal, Sudhir Joshi
Over the last three decades, successful implementation of the diphtheria vaccination in the developed and developing countries has reduced the infections caused by the toxigenic strains of C. diphtheriae, but a concomitant increase in the invasive infections due to the non-toxigenic strains was seen. In addition, the recent reports on the emergence of non-toxigenic toxin gene bearing strains (NTTB), having the potential to revert back to toxigenic form poses a significant threat to human beings. Besides infections caused by C...
July 25, 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28741068/amplification-of-egfr-and-cyclin-d1-genes-associated-with-human-papillomavirus-infection-in-oral-squamous-cell-carcinoma
#11
Jureeporn Chuerduangphui, Chamsai Pientong, Natcha Patarapadungkit, Apinya Chotiyano, Patravoot Vatanasapt, Bunkerd Kongyingyoes, Supannee Promthet, Piyawut Swangphon, Sureewan Bumrungthai, Charinya Pimson, Tipaya Ekalaksananan
Human papillomavirus (HPV) infection is associated with several genetic alterations including oncogene amplification, leading to increased aggression of tumors. Recently, a relationship between HPV infection and oncogene amplification has been reported, but this finding remains controversial. This study therefore investigated relationships between HPV infection and amplification of genes in the epidermal growth factor receptor (EGFR) signaling cascade in oral squamous cell carcinoma (OSCC). Extracted DNA from 142 formalin-fixed paraffin-embedded (FFPE) OSCC tissues was performed to investigate the copy number of EGFR, KRAS, c-myc and cyclin D1 genes using real-time polymerase chain reaction (RT-PCR) and compared with calibrators...
September 2017: Medical Oncology
https://www.readbyqxmd.com/read/28740687/infections-causing-central-airway-obstruction-role-of-bronchoscopy-in-diagnosis-and-management
#12
REVIEW
Sevak Keshishyan, Lawrence DeLorenzo, Kassem Hammoud, Arpine Avagyan, Hussein Assallum, Kassem Harris
Central airway obstructive infections (CAOI) are challenging medical conditions that may represent an advanced and complicated process of ongoing infections. The epidemiology of CAOI is unknown as well as the pathophysiology and the mechanism of development. This is due to sparse data in the literature that consists mainly of case reports and retrospective case series. CAOI can be caused by fungal, bacterial, parasitic and viral infections. Most patients with CAOI can be diagnosed clinically and with chest imaging, which demonstrate obstruction of the central airways...
June 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28740594/opportunities-for-treatment-of-the-hepatitis-c-virus-infected-patient-with-chronic-kidney-disease
#13
REVIEW
Marco Ladino, Fernando Pedraza, David Roth
The prevalence of hepatitis C virus (HCV) infection amongst patients with chronic kidney disease (CKD) and end-stage renal disease exceeds that of the general population. In addition to predisposing to the development of cirrhosis and hepatocellular carcinoma, infection with HCV has been associated with extra-hepatic complications including CKD, proteinuria, glomerulonephritis, cryoglobulinemia, increased cardiovascular risk, insulin resistance, and lymphoma. With these associated morbidities, infection with HCV is not unexpectedly accompanied by an increase in mortality in the general population as well as in patients with kidney disease...
July 8, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28740426/efficacy-of-flurbiprofen-8-75-mg-delivered-as-a-spray-or-lozenge-in-patients-with-sore-throat-due-to-upper-respiratory-tract-infection-a-randomized-non-inferiority-trial-in-the-russian-federation
#14
Eugenia Radkova, Natalia Burova, Valeria Bychkova, Robert DeVito
OBJECTIVE: To assess the efficacy of flurbiprofen 8.75 mg delivered as a spray or lozenge in patients with sore throat due to upper respiratory tract infection (URTI). MATERIALS AND METHODS: This multicenter, double-blind, double-dummy, non-inferiority study randomized 440 adults with recent-onset, moderate-to-severe sore throat due to URTI to a single dose of either flurbiprofen 8.75 mg spray (n=218) or flurbiprofen 8.75 mg lozenge (n=222). The presence or absence of beta-hemolytic streptococci (A or C) was confirmed by culture tests (throat swab)...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28740373/glycated-hemoglobin-a1c-based-adjusted-glycemic-variables-in-patients-with-diabetes-presenting-with-acute-exacerbation-of-chronic-obstructive-pulmonary-disease
#15
Chih-Jen Yang, Wen-I Liao, Zun-Cheng Tang, Jen-Chun Wang, Chien-Hsing Lee, Wei-Chou Chang, Chin-Wang Hsu, Shih-En Tang, Shih-Hung Tsai
Acute hyperglycemia is a common finding in patients presenting to emergency departments (EDs) with acute exacerbation of chronic obstructive pulmonary disease (AECOPD). Several studies have argued against the association between hyperglycemia at admission and adverse outcomes in patients with diabetes and an acute illness. Recent studies have shown that glucose-related variables (eg, glycemic gaps and stress hyperglycemia ratios) that are adjusted for glycated hemoglobin levels can indicate the severity of a variety of diseases...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28739828/mice-bone-marrow-sca-1-cd44-mesenchymal-stem-cells-kill-avirulent-mycobacteria-but-not-mycobacterium-tuberculosis-through-modulation-of-cathelicidin-expression-via-p38-mapk-dependent-pathway
#16
Sumanta Kumar Naik, Avinash Padhi, Geetanjali Ganguli, Srabasti Sengupta, Sanghamitra Pati, Dasarathi Das, Avinash Sonawane
Mycobacterium tuberculosis (Mtb) primarily infects lung macrophages. However, recent study has shown that Mtb also infect and persist in dormant form inside the bone marrow mesenchymal stem cells (BM-MSCs) even after successful antibiotic therapy. However, the mechanism(s) by which Mtb survives in BM-MSCs is still not known. Like macrophages, BM-MSCs do not contain a well-defined endocytic pathway, which is known to play a central role in the clearance of internalized mycobacteria. Here, we studied the fate of virulent and avirulent mycobacteria in Sca-1(+)/CD44(+) BM-MSCs...
July 24, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28739637/distributive-justice-and-the-harm-to-medical-professionals-fighting-epidemics
#17
Andreas Albertsen, Jens Damgaard Thaysen
The exposure of doctors, nurses and other medical professionals to risks in the context of epidemics is significant. While traditional medical ethics offers the thought that these dangers may limit the extent to which a duty to care is applicable in such situations, it has less to say about what we might owe to medical professionals who are disadvantaged in these contexts. Luck egalitarianism, a responsibility-sensitive theory of distributive justice, appears to fare particularly bad in that regard. If we want to maintain that medical professionals are responsible for their decisions to help, cure and care for the vulnerable, luck egalitarianism seems to imply that their claim of justice to medical attention in case of infection is weak or non-existent...
July 24, 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28739619/q-fever-prosthetic-joint-infection
#18
Scott Weisenberg, David Perlada, Thomas Peatman
Coxiella burnetii is the causative pathogen of the zoonotic infection Q fever. Most patients with Q fever experience a non-specific febrile illness, hepatitis or pneumonia. Q fever has recently been described as a cause of prosthetic joint septic arthritis, but remains very uncommonly reported. We present a case of Q fever prosthetic joint septic arthritis that has responded to a combination of two-stage surgical exchange and prolonged medical treatment with doxycycline and hydroxychloroquine.
July 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28739475/posterior-osteosynthesis-with-monoaxial-lateral-mass-screw-rod-system-for-unstable-c1-burst-fractures
#19
Yin-Shun Zhang, Jian-Xiang Zhang, Qing-Guo Yang, Wei Li, Hui Tao, Cai-Liang Shen
BACKGROUND CONTEXT: Surgical treatment for unstable atlas fractures has evolved in recent decades from C1-C2 or C0-C2 fusion to motion-preservation techniques of open reduction and internal fixation (ORIF). However, regardless of transoral or posterior approach, the reduction is still not satisfactory. PURPOSE: The article describes and evaluates a new technique for treating the unstable atlas fractures by using a monoaxial screw-rod system. STUDY DESIGN: This is a retrospective study PATIENT SAMPLE: The sample includes adult patients with unstable C1 fractures treated with a posterior monoaxial screw-rod system...
July 21, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28739448/hydrocortisone-and-ascorbic-acid-synergistically-prevent-and-repair-lps-induced-pulmonary-endothelial-barrier-dysfunction
#20
Nektarios Barabutis, Vikramjit Khangoora, Paul E Marik, John D Catravas
BACKGROUND: Sepsis refers the dysregulated host immune response elicited by microbial infections resulting in life-threatening organ dysfunction. Sepsis represents a medical challenge, since it is associated with a rate of death as high as 60%. Septic shock is strongly associated with vascular dysfunction and elevated pulmonary capillary permeability. We recently reported that the combination of hydrocortisone (HC), ascorbic acid (VitC) and thiamine dramatically improves outcomes and reduces mortality in septic patients...
July 21, 2017: Chest
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