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Immunocompromised infections

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https://www.readbyqxmd.com/read/28214181/-adult-immunisation-general-points-hot-topics-and-perspectives
#1
P Loubet, O Launay
Vaccination in immunocompetent adult mainly concerns booster vaccination against diphtheria, tetanus, polio and pertussis. Some chronic diseases may also require the achievement of pneumococcal and influenza vaccines. In addition, from the age of 65, annual influenza vaccination as well as one dose of a live attenuated shingles vaccine between 64 and 75 years are recommended. Immunocompromised adults, due to the increased risk of serious infections responsible of significant morbidity and mortality, are particularly concerned by vaccination...
February 14, 2017: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/28210456/severe-odontogenic-infection-an-emergency-case-report
#2
Marcelo Guzmán-Letelier, Claudia Crisosto-Jara, Camilo Diaz-Ricouz, Miguel Peñarrocha-Diago, David Peñarrocha-Oltra
Odontogenic infections (OI) are a major reason for consultation in dental practice. They affect people of all ages, and most of them respond well to current medical and surgical treatments. However, some OI can spread to vital and deep structures, overcome the host immune system - especially in diabetic, immunocompromised or weakened patients - and even prove fatal. Ludwig's angina is a severe form of diffuse cellulitis that can have an acute onset and spread very rapidly, bilaterally affecting areas of the head and neck, and may prove life threatening...
February 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28208876/prescribing-pattern-of-antifungal-medications-at-a-tertiary-care-hospital-in-oman
#3
Khalid A Al Balushi, Mohammed A Alzaabi, Fatma Alghafri
INTRODUCTION: Inappropriate use of antifungal agents is implicated in the global burden of antifungal resistance, adverse outcomes like persistent infections, unnecessary exposure and increased cost. Data collection from time to time is to be done in order to have a check on the resistance/sensitivity pattern of the commonly prescribed antifungal drugs. AIM: To describe the pattern of antifungal drug prescription and administration to patients attending a university hospital in Oman...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28207511/autoimmune-hepatitis-in-patients-with-human-immunodeficiency-virus-hiv-case-reports-of-a-rare-but-important-diagnosis-with-therapeutic-implications
#4
Leila Kia, Adam Beattie, Richard M Green
RATIONALE: Chronic liver disease is a major cause of morbidity and mortality in patients with HIV. However, autoimmune hepatitis (AIH) in patients with HIV has rarely been reported. Our aim was to evaluate a cohort of patients with HIV and AIH and identify clinical presentations and outcomes. PATIENT CONCERNS: Management of autoimmune hepatitis in context of human immunodeficiency virus, long-term outcomes, and safety in setting of underlying immunocompromised state...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28203230/the-major-immediate-early-protein-ie2-of-human-cytomegalovirus-is-sufficient-to-induce-proteasomal-degradation-of-cd83-on-mature-dendritic-cells
#5
Christiane S Heilingloh, Linda Grosche, Mirko Kummer, Petra Mühl-Zürbes, Lisa Kamm, Myriam Scherer, Melanie Latzko, Thomas Stamminger, Alexander Steinkasserer
Human cytomegalovirus (HCMV) is the prototypic beta-herpesvirus and widespread throughout the human population. While infection is asymptomatic in healthy individuals, it can lead to high morbidity and mortality in immunocompromised persons. Importantly, HCMV evolved multiple strategies to interfere with immune cell function in order to establish latency in infected individuals. As mature DCs (mDCs) are antigen-presenting cells able to activate naïve T cells they play a crucial role during induction of effective antiviral immune responses...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28202760/restriction-of-hcmv-replication-by-isg15-a-host-effector-regulated-by-cgas-sting-dsdna-sensing
#6
Christopher Bianco, Ian Mohr
Accumulation of the interferon-stimulated gene (ISG) 15 protein product, which is reversibly conjugated to numerous polypeptide targets, impacts the proteome and physiology of uninfected and infected cells. While many viruses, including human cytomegalovirus (HCMV) blunt host antiviral defenses by limiting ISG expression, the overall abundance of ISG15 monomer and protein conjugates rises in HCMV-infected cells. However, the molecular signals underlying ISG15 accumulation and whether the ISG15 polypeptide itself influences HCMV infection biology remain unknown...
February 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28199133/endobronchial-lesions-of-mycobacterium-abscessus-infection-in-an-immunocompromised-patient
#7
Keigo Saeki, Satoshi Watanabe, Yuko Waseda, Kazuo Kasahara
No abstract text is available yet for this article.
February 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28198539/cytomegalovirus-infection-alters-phenotypes-of-different-%C3%AE-%C3%AE-t-cell-subsets-in-renal-transplant-recipients-with-long-term-stable-graft-function
#8
Silvia Lee, Jacquita S Affandi, Ashley B Irish, Patricia Price
Cytomegalovirus (CMV) infection alters the phenotypic profiles of T-cells and NK cells in healthy and immunocompromised individuals. Here, we examined the effects of CMV infection on the phenotype and functions of γδ T-cell subsets in renal transplant recipients (RTR) stable several years after transplantation (n = 80) and healthy controls (n = 72). Differentiation status, function, and expression of HLA-DR, CD57 and LIR-1 on Vδ2- and Vδ2+ γδ T-cells were examined in peripheral blood cells using flow cytometry...
February 15, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28196644/re-evaluation-of-epidermodysplasia-verruciformis-reconciling-more-than-90%C3%A2-years-of-debate
#9
REVIEW
Joanna Przybyszewska, Abraham Zlotogorski, Yuval Ramot
Epidermodysplasia verruciformis (EV) is a rare genodermatosis characterized by abnormal susceptibility to cutaneous human beta-papillomavirus infections causing persistent flat warts or pityriasis versicolor-like lesions. This generalized verrucous skin disorder resembles generalized verrucosis, but these 2 conditions are distinguished by differences in clinical manifestation and the human papillomavirus types involved. A breakthrough in our understanding of EV was the discovery that homozygous inactivating mutations in TMC6 (EVER1) and TMC8 (EVER2) determine susceptibility to this disorder; however, they have not solved all EV cases fully...
February 10, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28195559/selection-of-multi-drug-resistant-influenza-a-and-b-viruses-under-zanamivir-pressure-and-their-replication-fitness-in-ferrets
#10
Ding Yuan Oh, Jacqueline Panozzo, Sophie Vitesnik, Rubaiyea Farrukee, David Piedrafita, Jennifer Mosse, Aeron C Hurt
BACKGROUND: Intravenous zanamivir has been used to treat patients with severe influenza. Because the majority of cases (including immunocompromised patients) require the drug for an extended period of treatment, there is a higher risk that the virus will develop resistance. Therefore, knowing the possible amino acid substitutions that may arise in recently circulating influenza strains under prolonged zanamivir exposure and their impact on antiviral susceptibility is important. METHODS: Influenza A(H1N1)pdm09, A(H3N2) and B virus were serially passaged under increasing zanamivir pressure in vitro...
February 14, 2017: Antiviral Therapy
https://www.readbyqxmd.com/read/28194145/potential-use-of-alginate-based-carriers-as-antifungal-delivery-system
#11
REVIEW
Cristina de Castro Spadari, Luciana B Lopes, Kelly Ishida
Fungal infections have become a major public health problem, growing in number and severity in recent decades due to an increase of immunocompromised patients. The use of therapeutic agents available to treat these fungal infections is limited by their toxicity, low bioavailability, antifungal resistance, and high cost of treatment. Thus, it becomes extremely important to search for new therapeutic options. The use of polymeric systems as drug carriers has emerged as a promising alternative to conventional formulations for antifungals...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28193661/determining-the-clinical-utility-of-an-absolute-procalcitonin-value-for-predicting-a-positive-culture-result
#12
Erica M Caffarini, Joshua DeMott, Gourang Patel, Ishaq Lat
Various procalcitonin ranges have been established to guide antimicrobial therapy; however, there are no data that establish whether the initial procalcitonin value will determine the likelihood of a positive culture result. This study aims to establish if the initial procalcitonin value on clinical presentation can provide positive predictive value of any positive culture result.This was a retrospective study of 813 medical intensive care unit patients. Data points collected included patient demographics, procalcitonin assays, source of infection, culture results, and length of stay...
February 13, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28193462/both-canonical-and-noncanonical-wnt-signalling-may-be-required-for-detoxification-following-etp-class-mycotoxin-exposure
#13
Jinbi Zhang, Zengxiang Pan, Allan Sheppard
Fungal infections (mycotoxicoses) are a growing global threat for both health and food production, and the available tools for effective detection, monitoring and treatment remain limited. Mycotoxins of the so-called ETP class can cause disease in humans (notably immunocompromised clinical patients) and otherwise healthy ruminant production animals. Understanding the molecular responses caused by ETP toxicity responses will inform diagnostics and guide possible interventions. Here we provide empirical evidence that exposure of hepatic cells to the ETP mycotoxin Sporidesmin A may trigger both canonical and noncanonical Wnt signalling, mediated through miRNA regulation, and regulate the particular expression of CYP2C family members...
February 10, 2017: Toxicology Letters
https://www.readbyqxmd.com/read/28192237/untargeted-next-generation-sequencing-based-first-line-diagnosis-of-infection-in-immunocompromised-adults-a-multicentre-blinded-prospective-study
#14
Perrine Parize, Erika Muth, Clémence Richaud, Marlène Gratigny, Benoit Pilmis, Arnaud Lamamy, Jean-Luc Mainardi, Justine Cheval, Louise de Visser, Florence Jagorel, Laura Ben Yahia, Geraldine Bamba, Myriam Dubois, Olivier Join-Lambert, Marianne Leruez-Ville, Xavier Nassif, Agnes Lefort, Fanny Lanternier, Felipe Suarez, Olivier Lortholary, Marc Lecuit, Marc Eloit
OBJECTIVE: Infections are the major cause of morbidity and mortality in immunocompromised patients. Improving microbiological diagnosis in these patients is of paramount clinical importance. METHODS: We performed this multicentre, blinded, prospective, proof-of-concept study, to compare untargeted next-generation sequencing with conventional microbiological methods for first-line diagnosis of infection in 101 immunocompromised adults. Patients were followed for 30 days and their blood samples, and in some cases nasopharyngeal swabs and/or biological fluids, were analysed...
February 10, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28188440/pathology-of-infectious-diseases-what-does-the-future-hold
#15
REVIEW
Paul Hofman, Sebastian Lucas, Grégory Jouvion, Arnault Tauziède-Espariat, Fabrice Chrétien, Gieri Cathomas
The demand for expertise in pathology for the diagnosis of infectious diseases (ID) is continually growing, due to an increase in ID in immunocompromised patients and in the (re)-emergence of common and uncommon diseases, including tropical infections and infections with newly identified microbes. The microbiology laboratory plays a crucial role in diagnosing infections, identifying the responsible infectious agents and establishing sensitivity of pathogens to drug therapy. Pathology, however, is the only way to correlate the presence of an infectious agent with the reaction it evokes at cell and tissue level...
February 10, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28188094/catheter-related-bloodstream-infection-caused-by-kodamaea-ohmeri-a-case-report-and-literature-review
#16
Yoshiaki Kanno, Yoshitaka Wakabayashi, Mahoko Ikeda, Keita Tatsuno, Yoshiki Misawa, Tomoaki Sato, Shintaro Yanagimoto, Shu Okugawa, Kyoji Moriya, Hiroshi Yotsuyanagi
Kodamaea ohmeri is a rare yeast pathogen that has recently emerged as an important cause of fungemia in immunocompromised patients. However, appropriate therapy for this infection remains unclear. We report a case of catheter-related blood stream infection caused by K. ohmeri in a 58-year-old patient who improved after removal of the central venous catheter and administration of micafungin. Considering the antibiotic susceptibility of this pathogen and reviewing literature, echinocandins may be the first choice for an empiric therapy for this pathogen...
February 7, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28188050/successful-treatment-with-caspofungin-of-candiduria-in-a-child-with-wilms-tumor-review-of-literature
#17
M S Rezai, A Vaezi, H Fakhim, A Soleimani, H Mohammad Jafari, S Mohseni, H Badali
Symptomatic candiduria often occurs in patients with indwelling bladder catheters or immunocompromised host. Isolation of Candida in urine in high-risk patients should primarily be considered as a marker for candidemia. Hematological and genitourinary malignancies are one of the main risk factors associated with Candida urinary tract infections (CUTI). Fluconazole is a choice for initial treatment of CUTI, but it is fluctuate depending on the patient's condition including renal failure, site of urinary infection and Candida species...
February 7, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28187760/case-report-subacute-tetraplegia-in-an-immunocompromised-patient
#18
Daniel Zeller, Anke Heidemeier, Götz Ulrich Grigoleit, Wolfgang Müllges
BACKGROUND: Clinical reasoning in Neurology is based on general associations which help to deduce the site of the lesion. However, even "golden principles" may occasionally be deceptive. Here, we describe the case of subacute flaccid tetraparesis due to motor cortical lesions. To our knowledge, this is the first report to include an impressive illustration of nearly symmetric motor cortical involvement of encephalitis on brain MRI. CASE PRESENTATION: A 51 year old immunocompromized man developed a high-grade pure motor flaccid tetraparesis over few days...
February 10, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28183847/human-rhinovirus-detection-in-the-lower-respiratory-tract-of-hematopoietic-cell-transplant-recipients-association-with-mortality
#19
Sachiko Seo, Alpana Waghmare, Emily M Scott, Hu Xie, Jane M Kuypers, Robert C Hackman, Angela P Campbell, Su-Mi Choi, Wendy M Leisenring, Keith R Jerome, Janet A Englund, Michael Boeckh
Human rhinoviruses are the most common respiratory viruses detected in patients after hematopoietic cell transplantation. Although rhinovirus appears to occasionally cause severe lower respiratory tract infection in immunocompromised patients, the clinical significance of rhinovirus detection in the lower respiratory tract remains unknown. We evaluated 697 recipients transplanted between 1993 and 2015 with rhinovirus in respiratory samples. As comparative cohorts, 273 recipients with lower respiratory tract infection caused by respiratory syncytial virus (N=117), parainfluenza virus (N=120), or influenza (N=36) were analyzed...
February 9, 2017: Haematologica
https://www.readbyqxmd.com/read/28183273/phanerochaete-sordida-as-a-cause-of-pulmonary-nodule-in-an-immunocompromised-patient-a-case-report
#20
Naoki Watanabe, Kiyofumi Ohkusu, Masaya Okuda, Osamu Imataki, Tomoya Ishii, Kiyoshi Negayama, Akira Tadokoro, Nobuyuki Kita, Takehiro Takagi, Nobuhiro Kanaji, Norimitsu Kadowaki, Shuji Bandoh
BACKGROUND: Phanerochaete sordida is a species of wood rotting fungus, which can degrade lignin, cellulose and hemicellulose contained in wood and other hard-to-biodegrade organic substances. However, to date, there have been no other reports demonstrating that P. sordida can infect humans. CASE PRESENTATION: A 66-year-old Japanese man presented for a mass increasing in size on his left thigh. He had been suffering from rheumatoid arthritis for 18 years and chronic obstructive pulmonary disease for 20 years, for which he was being treated with 5 mg/day prednisolone and 8 mg/week methotrexate...
February 10, 2017: BMC Infectious Diseases
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