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https://www.readbyqxmd.com/read/27906037/integrated-therapy-for-hiv-and-cryptococcosis
#1
REVIEW
Sirawat Srichatrapimuk, Somnuek Sungkanuparph
Cryptococcosis has been one of the most common opportunistic infections and causes of mortality among HIV-infected patients, especially in resource-limited countries. Cryptococcal meningitis is the most common form of cryptococcosis. Laboratory diagnosis of cryptococcosis includes direct microscopic examination, isolation of Cryptococcus from a clinical specimen, and detection of cryptococcal antigen. Without appropriate treatment, cryptococcosis is fatal. Early diagnosis and treatment is the key to treatment success...
November 29, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27904878/de-novo-pyrimidine-biosynthesis-connects-cell-integrity-to-amphotericin-b-susceptibility-in-cryptococcus-neoformans
#2
Dithi Banerjee, Timothy C Umland, John C Panepinto
The use of amphotericin B (AmB) in conjunction with 5-fluorocytosine (5-FC) is known to be the optimal therapy for treating cryptococcosis, but the mechanism by which 5-FC synergizes with AmB is unknown. In this study, we generated a Cryptococcus neoformans ura1Δ mutant lacking dihydroorotate dehydrogenase (DHODH), which demonstrated temperature-sensitive growth due to a defect in cell integrity and sensitivity to cell wall-damaging agents. In addition, sensitivity to AmB was greatly increased. Inclusion of uracil or uridine in the medium did not suppress the cell wall or AmB phenotype, whereas complementation with the wild-type URA1 gene complemented the mutant phenotype...
November 2016: MSphere
https://www.readbyqxmd.com/read/27904738/recent-developments-in-the-management-of-invasive-fungal-infections-in-patients-with-oncohematological-diseases
#3
REVIEW
Markus Ruhnke, Stefan Schwartz
Patients with hematological cancer have a high risk of invasive fungal diseases (IFDs). These infections are mostly life threatening and an early diagnosis and initiation of appropriate antifungal therapy are essential for the clinical outcome. Most commonly, Aspergillus and Candida species are involved. However, other non-Aspergillus molds are increasingly be identified in cases of documented IFDs. Important risk factors are long lasting granulocytopenia with neutrophil counts below 500/μl for more than 10 days or graft-versus-host disease resulting from allogeneic stem-cell transplantation...
December 2016: Therapeutic Advances in Hematology
https://www.readbyqxmd.com/read/27900242/management-of-rhinomaxillary-mucormycosis-with-posaconazole-in-immunocompetent-patients
#4
Sachin Rai, Shikha Yadav, Dinesh Kumar, Vijay Kumar, Vidya Rattan
Mucormycosis is an opportunistic, uncommon and serious systemic fungal infection mostly presenting in immunocompromised patients. The combination of surgical debridement, parenteral therapy with Amphotericin B and management of the underlying systemic disease is the standard treatment modality for mucormycosis. The drawback of this regime is the need for long hospitalization due to the serious side effects of Amphotericin B requiring regular monitoring. Oral Posaconazole is one of the newer antifungals that have shown promising results...
November 2016: Journal of Oral Biology and Craniofacial Research
https://www.readbyqxmd.com/read/27888588/lps-responsive-beige-like-anchor-gene-mutation-associated-with-possible-bronchiolitis-obliterans-organizing-pneumonia-associated-with-hypogammaglobulinemia-and-normal-igm-phenotype-and-low-number-of-b-cells
#5
Sima Shokri, Mohammad Nabavi, Tatjana Hirschmugl, Asghar Aghamohammadi, Saba Arshi, Mohamad Hassan Bemanian, Morteza Fallahpour, Rasool Molatefi, Mahsa Rekabi, Narges Eslami, Javad Ahmadian, Kian Darabi, Gholam Reza Sedighi, Maryam Monajemzadeh, Mohammadreza Modaresi, Nima Parvaneh, Kaan Boztug, Nima Rezaei
LPS-Responsive Beige-like Anchor (LRBA) deficiency is a disease which has recently been described in a group of patients with common variable immunodeficiency (CVID) in association with autoimmunity and/or inflammatory bowel disease (IBD)-like phenotype. We here describe a 10-year-old boy who experienced recurrent infections, mainly in the respiratory system, associated with thrombocytopenia and anemia. Immunological workup showed low numbers of B cells and low IgG, but normal IgM levels. In spite of therapeutic doses of antibiotics, antivirals, and antifungal agents, in addition to immunoglobulin replacement therapy, he developed disseminated involvement of both lungs with peripheral nodules; transbronchial lung biopsy revealed possible bronchiolitis obliterans organizing pneumonia (BOOP)...
October 2016: Acta Medica Iranica
https://www.readbyqxmd.com/read/27886201/cryptococcal-meningitis-epidemiology-immunology-diagnosis-and-therapy
#6
REVIEW
Peter R Williamson, Joseph N Jarvis, Anil A Panackal, Matthew C Fisher, Síle F Molloy, Angela Loyse, Thomas S Harrison
HIV-associated cryptococcal meningitis is by far the most common cause of adult meningitis in many areas of the world that have high HIV seroprevalence. In most areas in Sub-Saharan Africa, the incidence of cryptococcal meningitis is not decreasing despite availability of antiretroviral therapy, because of issues of adherence and retention in HIV care. In addition, cryptococcal meningitis in HIV-seronegative individuals is a substantial problem: the risk of cryptococcal infection is increased in transplant recipients and other individuals with defects in cell-mediated immunity, and cryptococcosis is also reported in the apparently immunocompetent...
November 25, 2016: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/27882109/excisional-keratectomy-combined-with-focal-cryotherapy-and-amniotic-membrane-inlay-for-recalcitrant-filamentary-fungal-keratitis-a-retrospective-comparative-clinical-data-analysis
#7
Yingxin Chen, Minghong Gao, Joshua K Duncan, Di Ran, Denise J Roe, Michael W Belin, Mingwu Wang
The aim of the present study was to investigate the efficacy of a novel surgical intervention, excisional keratectomy combined with focal cryotherapy and amniotic membrane inlay (EKCAI), for the treatment of recalcitrant filamentary fungal keratitis. A retrospective analysis was performed of patients who underwent excisional keratectomy combined with conjunctival flap inlay (EKCFI), EKCAI or therapeutic penetrating keratoplasty (TPK) from January 2006 to January 2011. Recalcitrance was determined as being unresponsive to standard medical antifungal therapy for at ≥1 week...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27866319/successful-posaconazole-therapy-of-disseminated-alternariosis-due-to-alternaria-infectoria-in-a-heart-transplant-recipient
#8
Pavlina Lyskova, Milos Kubanek, Vit Hubka, Eva Sticova, Ludek Voska, Dana Kautznerova, Miroslav Kolarik, Petr Hamal, Martina Vasakova
We report a case of phaeohyphomycosis caused by Alternaria infectoria in a 61-year-old heart transplant recipient with multiple skin lesions and pulmonary infiltrates. The infection spread via the haematogenous route from the primary cutaneous lesions into the lungs. The diagnosis was based on the histopathological examination, direct microscopy, skin lesion cultures and detection of Alternaria DNA in the bronchoalveolar lavage fluid using molecular methods. The treatment consisted of a combination of surgical excision and systemic antifungal therapy...
November 19, 2016: Mycopathologia
https://www.readbyqxmd.com/read/27843433/successful-treatment-of-lasiodiplodia-theobromae-keratitis-assessing-the-role-of-voriconazole
#9
Stephen Tak-Lun Li, Evan Po-Fat Yiu, Angela Hiu-Yan Wong, John Chun-Ting Yeung, Lester Wang-Hon Yu
PURPOSE: The aim of this paper is to report the successful management of the first case of Lasiodiplodia theobromae keratitis in Hong Kong. METHODS: We conducted a case report. RESULTS: A 43-year-old Chinese male with a history of diabetes developed left eye keratitis after a trauma during tree felling. Fungal keratitis was diagnosed using a confocal microscope on day 1, and L. theobromae was confirmed from the culture. He was given oral voriconazole, topical natamycin, and topical and intracameral amphotericin B...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/27837513/t2-magnetic-resonance-for-fungal-diagnosis
#10
Fainareti N Zervou, Ioannis M Zacharioudakis, Jaclynn Kurpewski, Eleftherios Mylonakis
Rapid diagnostic methods for fungal infections are long awaited and are expected to improve outcomes through early initiation of targeted antifungal therapy. T2Candida panel is a novel qualitative diagnostic platform that was recently approved by the US Food and Drug Administration (FDA) for diagnosis of candidemia with a mean time to species identification of less than 5 h. T2Candida panel is performed on the fully automated T2Dx instrument in whole blood K2EDTA specimens and is able to detect 5 Candida spp...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27832748/invasive-mucormycosis-in-children-an-epidemiologic-study-in-european-and-non-european-countries-based-on-two-registries
#11
Zoi Dorothea Pana, Danila Seidel, Anna Skiada, Andreas H Groll, Georgios Petrikkos, Oliver A Cornely, Emmanuel Roilides
BACKGROUND: Mucormycosis has emerged as a rare but frequently fatal invasive fungal disease. Current knowledge on paediatric mucormycosis is based on case reports and small series reported over several decades. Contemporary data on a large cohort of patients is lacking. METHODS: Two large international registries (Zygomyco.net and FungiScope™) were searched for mucormycosis cases in ≤19 year-old patients. Cases enrolled between 2005 and 2014 were extracted, and dual entries in the two databases merged...
November 10, 2016: BMC Infectious Diseases
https://www.readbyqxmd.com/read/27830496/baofukang-suppository-promotes-the-repair-of-vaginal-epithelial-cells-in-response-to-candida-albicans
#12
Ting Li, Xiaoxi Niu, Xu Zhang, Suxia Wang, Zhaohui Liu
Vulvovaginal candidiasis (VVC) is an opportunistic fungal infection predominantly caused by Candida albicans affecting a significant number of women of reproductive age. The Chinese medicine, the Baofukang suppository is widely used in the clinic for its antimicrobial activity and is therefore of great interest as a potential antifungal drug for the prevention of VVC. We evaluated the cytotoxic activity of the Baofukang suppository using the VK2/E6E7 vaginal epithelial cell (VEC) line. When treated with the Baofukang suppository, all of the immunocompetent cytokines and chemokines (e...
December 2016: AMB Express
https://www.readbyqxmd.com/read/27826683/aspergillus-flavus-keratitis-experience-of-a-tertiary-eye-clinic-in-turkey
#13
Elif Erdem, Meltem Yagmur, Hazal Boral, Macit Ilkit, Reha Ersoz, Seyedmojtaba Seyedmousavi
We investigated the clinical and mycological characteristics of four cases of mycotic keratitis caused by Aspergillus flavus that occurred from July 2014 to May 2015 at Çukurova University Hospital, Adana, Turkey. In a 10-month period, a total of 64 corneal smear/scrapings were examined from patients with suspected mycotic keratitis. Fungal cultures were positive in six of these patients, indicating a 9.4% incidence of mycotic keratitis in this region, including four cases of A. flavus and two cases of Fusarium spp...
November 8, 2016: Mycopathologia
https://www.readbyqxmd.com/read/27826143/application-of-a-low-molecular-weight-antifungal-protein-from-penicillium-chrysogenum-paf-to-treat-pulmonary-aspergillosis-in-mice
#14
Zoltán Palicz, Tamás Gáll, Éva Leiter, Sándor Kollár, Ilona Kovács, Kornél Miszti-Blasius, István Pócsi, László Csernoch, Péter Szentesi
PAF, a small antifungal protein from Penicillium chrysogenum, inhibits the growth of several pathogenic filamentous fungi, including members of the Aspergillus genus. PAF has been proven to have no toxic effects in vivo in mice by intranasal application. To test its efficacy against invasive pulmonary aspergillosis (IPA), experiments were carried out in mice suffering from IPA. Adult mice were immunosuppressed and then infected with Aspergillus fumigatus. After stable infection, the animals were inoculated with PAF intranasally at a concentration of 2...
November 9, 2016: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/27825175/update-on-efinaconazole-10-topical-solution-for-the-treatment-of-onychomycosis
#15
A K Gupta, C Studholme
Efinaconazole 10% nail solution is a novel topical antifungal drug for the treatment of onychomycosis. Two Phase III trials were completed using efinaconazole 10% nail solution, where 17.8% and 15.2% of patients achieved complete cure, and 55.2% and 53.4% achieved mycological cure. Several post hoc analyses were carried out using data from Phase III trials to determine the efficacy of efinaconazole with respect to disease duration, disease progression, and comorbidities of diabetes or tinea pedis with onychomycosis...
November 2016: Skin Therapy Letter
https://www.readbyqxmd.com/read/27820668/new-facets-of-antifungal-therapy
#16
Ya-Lin Chang, Shang-Jie Yu, Joseph Heitman, Melanie Wellington, Ying-Lien Chen
Invasive fungal infections remain a major cause of morbidity and mortality in immunocompromised patients, and such infections are a substantial burden to healthcare systems around the world. However, the clinically available armamentarium for invasive fungal diseases is limited to 3 main classes (i.e., polyenes, triazoles, and echinocandins), and each has defined limitations related to spectrum of activity, development of resistance, and toxicity. Further, current antifungal therapies are hampered by limited clinical efficacy, high rates of toxicity, and significant variability in pharmacokinetic properties...
November 7, 2016: Virulence
https://www.readbyqxmd.com/read/27812353/ink128-exhibits-synergy-with-azoles-against-exophiala-spp-and-fusarium-spp
#17
Lujuan Gao, Yi Sun, Chengyan He, Ming Li, Tongxiang Zeng, Qiaoyun Lu
Infections of Exophiala spp. and Fusarium spp. are often chronic and recalcitrant. Systemic disseminations, which mostly occur in immunocompromised patients, are often refractory to available antifungal therapies. The conserved target of rapamycin (TOR) orchestrates cell growth and proliferation in response to nutrients and growth factors, which are important for pathogenicity and virulence. INK128 is a second-generation ATP-competitive TOR inhibitor, which binds the TOR catalytic domain and selectively inhibits TOR...
2016: Frontiers in Microbiology
https://www.readbyqxmd.com/read/27803184/a-class-1-histone-deacetylase-with-potential-as-an-antifungal-target
#18
Ingo Bauer, Divyavaradhi Varadarajan, Angelo Pidroni, Silke Gross, Stefan Vergeiner, Birgit Faber, Martin Hermann, Martin Tribus, Gerald Brosch, Stefan Graessle
: Histone deacetylases (HDACs) remove acetyl moieties from lysine residues at histone tails and nuclear regulatory proteins and thus significantly impact chromatin remodeling and transcriptional regulation in eukaryotes. In recent years, HDACs of filamentous fungi were found to be decisive regulators of genes involved in pathogenicity and the production of important fungal metabolites such as antibiotics and toxins. Here we present proof that one of these enzymes, the class 1 type HDAC RpdA, is of vital importance for the opportunistic human pathogen Aspergillus fumigatus Recombinant expression of inactivated RpdA shows that loss of catalytic activity is responsible for the lethal phenotype of Aspergillus RpdA null mutants...
November 1, 2016: MBio
https://www.readbyqxmd.com/read/27795339/prospective-biomarker-screening-for-the-diagnosis-of-invasive-aspergillosis-in-high-risk-paediatric-patients
#19
Juergen Loeffler, Julia Hafner, Carlo Mengoli, Clemens Wirth, Claus Peter Heussel, Claudia Löffler, P Lewis White, Andrew J Ullmann, Denise Michel, Verena Wiegering, Matthias Wölfl, Paul Gerhardt Schlegel, Hermann Einsele, Jan Springer, Matthias Eyrich
Combined biomarker screening is increasingly used to diagnose invasive aspergillosis (IA) in high-risk patients. In adults, the combination of galactomannan (GM) and fungal DNA detection has proven to be beneficial in the diagnosis of IA. Data in purely paediatric cohorts is scarce. Here, we monitored 39 children shortly before and after allogeneic stem cell transplantation twice weekly using a commercial GM ELISA and a PCR assay based on amplification of the pan-Aspergillus ITS1/5.8S ribosomal operon. In addition, clinical data were recorded and classification of IA was performed according to EORTC/MSG criteria...
October 19, 2016: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/27769331/purpureocillium-lilacinum-keratitis-a-case-series-and-review-of-the-literature
#20
Rusheng Chew, Andrew Dorman, Marion L Woods
OBJECTIVE: To describe the clinical features and risk factors of and optimal antifungal therapy for Purpureocillium lilacinum keratitis. DESIGN: Retrospective case series in a quaternary referral hospital setting. METHODS: Comprehensive chart review of patients diagnosed with P. lilacinum keratitis in the past 10 years. PARTICIPANTS: Four patients were identified. All were aged 60 years or greater, with none having prior ocular trauma...
October 2016: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
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