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antifungal combination therapy

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https://www.readbyqxmd.com/read/28431008/diabetes-mellitus-as-the-major-risk-factor-for-mucormycosis-in-mexico-epidemiology-diagnosis-and-outcomes-of-reported-cases
#1
Dora E Corzo-León, Luis D Chora-Hernández, Ana P Rodríguez-Zulueta, Thomas J Walsh
Mucormycosis is an emerging infectious disease with high rates of associated mortality and morbidity. Little is known about the characteristics of mucormycosis or entomophthoromycosis occurring in Mexico. A search strategy was performed of literature published in journals found in available databases and theses published online at Universidad Nacional Autónoma de México (UNAM) library website reporting clinical cases or clinical case series of mucormycosis and entomophthoromycosis occurring in Mexico between 1982 and 2016...
April 20, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28429626/promising-immunotherapy-against-fungal-diseases
#2
Wilfried Posch, Marion Steger, Doris Wilflingseder, Cornelia Lass-Flörl
Despite the relatively high efficacy of antifungal drugs, invasive fungal infections (IFIs) are still associated with tremendous morbidity and mortality, since late diagnosis makes an antifungal drug therapy inefficient. Therefore, antifungal immunotherapies to specifically strengthen the host´s own immune mechanisms constitute an additional promising strategy in taking action against fungal pathogens. Areas covered: The authors summarize efforts in research and clinical trials to provide safe and efficient immunotherapeutic options against invasive fungal diseases...
April 21, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28420334/mucormycosis-in-renal-transplant-recipients-review-of-174-reported-cases
#3
Yan Song, Jianjun Qiao, Gaffi Giovanni, Guangjun Liu, Hao Yang, Jianyong Wu, Jianghua Chen
BACKGROUND: Mucormycosis is a highly lethal fungal infection especially in immunocompromised individuals. METHODS: In order to review the epidemiology, diagnosis, and treatment of mucormycosis in renal transplant recipients we searched publications of mucormycosis cases in renal transplant recipients in PUBMED database up to December 2015. RESULTS: A total of 174 cases in renal transplant recipients were included in this review. Most of the cases (76%) were male...
April 18, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28412957/pattern-of-drug-use-among-preterm-neonates-results-from-an-italian-neonatal-intensive-care-unit
#4
A Girardi, S Galletti, E Raschi, A Koci, E Poluzzi, G Faldella, F De Ponti
BACKGROUND: Drug use in preterm neonates admitted to Neonatal Intensive Care Unit (NICU) has been investigated, so far, in terms of unauthorized or off-label use; very little is known on the use of combinations of different active substances, which is frequently required in this population (prophylaxis of infections, treatment of concomitant diseases). The aim of this study was to describe the most common patterns of drug use in an Italian NICU, focusing on those with nephrotoxic potential...
April 17, 2017: Italian Journal of Pediatrics
https://www.readbyqxmd.com/read/28412452/enhancement-of-dissolution-rate-through-eutectic-mixture-and-solid-solution-of-posaconazole-and-benznidazole
#5
Camila Bezerra Melo Figueirêdo, Daniela Nadvorny, Amanda Carla Quintas de Medeiros Vieira, José Lamartine Soares Sobrinho, Pedro José Rolim Neto, Ping I Lee, Monica Felts de La Roca Soares
Benznidazole (BNZ), the only commercialized antichagasic drug, and the antifungal compound posaconazole (PCZ) have shown synergistic action in the therapy of Chagas disease, however both active pharmaceutical ingredients (APIs) exhibit low aqueous solubility potentially limiting their bioavailability and therapeutic efficacy. In this paper, we report for the first time the formation of a eutectic mixture as well as an amorphous solid solution of PCZ and BNZ (at the same characteristic ratio of 80:20wt%), which provided enhanced solubility and dissolution rate for both APIs...
April 12, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28400291/unmet-clinical-needs-in-the-treatment-of-systemic-fungal-infections-the-role-of-amphotericin-b-and-drug-targeting
#6
Raquel Fernández-García, Esther de Pablo, María Paloma Ballesteros, Dolores R Serrano
Recently an increase in both the prevalence and incidence of invasive fungal infections have been reported. The number of fungal species that can cause systemic mycoses are higher and current antifungal therapies are still far from ideal. The emergence of antifungal resistances has a major clinical impact when using azoles and echinocandins leading to possible treatment failure and ultimately putting the patient's life at risk. Amphotericin B can play a key role in treating severe invasive mycoses as the incidence of antifungal resistance is very low combined with a high efficacy against a wide range of fungi...
April 8, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28395939/a-case-series-of-histoplasmosis-patients-with-elevated-serum-soluble-interleukin-2-receptor-levels
#7
Tatsuro Hirayama, Takahiro Takazono, Kazuma Iwata, Hiroaki Senju, Takaharu Shimazaki, Masato Tashiro, Tomomi Saijo, Takeshi Tanaka, Shigeki Nakamura, Yoshifumi Imamura, Maiko Kojiro, Taiga Miyazaki, Misuzu Tsukamoto, Akitsugu Furumoto, Konosuke Morimoto, Yasunori Muraosa, Yuichi Matsubara, Katsunori Yanagihara, Hiroshi Mukae, Katsuhiko Kamei, Shigeru Kohno, Koichi Izumikawa
Histoplasmosis is a common endemic mycosis that is usually asymptomatic but occasionally results in severe illness. Histoplasmosis and its causative agent, Histoplasma capsulatum, are found worldwide but rarely in Japan. In recent years, however, the number of histoplasmosis patients in Japan has increased. In addition, to our knowledge, there are no previous reports of increased serum soluble interleukin-2 receptor (sIL-2R) levels in patients with histoplasmosis. We report a case series of histoplasmosis in three Japanese temporary workers in Manzanillo, Mexico...
April 8, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28391953/-efficacy-of-the-treatment-and-secondary-antifungal-prophylaxis-in-aids-related-histoplasmosis-experience-at-the-francisco-j-mu%C3%A3-iz-infectious-diseases-hospital-in-buenos-aires
#8
Ricardo Negroni, Fernando Messina, Alicia Arechavala, Gabriela Santiso, Mario Bianchi
BACKGROUND: Classic histoplasmosis is a systemic endemic mycosis due to Histoplasma capsulatum var. capsulatum. A significant reduction in the morbidity and mortality of AIDS-related histoplasmosis has been observed since the introduction of highly active antiretroviral therapy (HAART) and secondary antifungal prophylaxis. AIMS: The aim of this study was to determine the current state of prognosis and treatment response of HIV-positive patients with histoplasmosis in the Francisco J...
April 5, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28386527/coccidioidal-meningitis-complicated-by-central-nervous-system-vasculitis-in-a-patient-with-leukemia
#9
Dany Tager, Anne Hatch, Jennifer Segar, Brentin Roller, Mayar Al Mohajer, Tirdad T Zangeneh
Central Nervous System (CNS) vasculitis is the most common life-threatening complication of coccidioidal meningitis. It is manifested by cerebral ischemia, hemorrhage, and infarction. We report a case of CNS vasculitis in a patient receiving chemotherapy and review of the literature on coccidioidal meningitis. The patient was treated with combination antifungal therapy and a short course of high dose corticosteroids with a modest improvement in her neurological examination after initiation of steroids.
June 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28371335/genetic-susceptibility-to-severe-asthma-with-fungal-sensitization
#10
N L Overton, A Simpson, P Bowyer, D W Denning
Severe asthma is problematic and its pathogenesis poorly understood. Fungal sensitization is common, and many patients with severe asthma with fungal sensitization (SAFS), used to denote this subgroup of asthma, respond to antifungal therapy. We have investigated 325 haplotype-tagging SNPs in 22 candidate genes previously associated with aspergillosis in patients with SAFS, with comparisons in atopic asthmatics and healthy control patients, of whom 47 SAFS, 279 healthy and 152 atopic asthmatic subjects were genotyped successfully...
March 31, 2017: International Journal of Immunogenetics
https://www.readbyqxmd.com/read/28355467/new-pharmacological-opportunities-for-the-treatment-of-invasive-mould-diseases
#11
Marie-Pierre Ledoux, Elise Toussaint, Julie Denis, Raoul Herbrecht
Recently, several randomized studies have been published that will shape treatment decisions in the prevention and management of invasive mould infections. Liposomal amphotericin B is an option for empirical or targeted treatment of invasive aspergillosis or mucormycosis, but for prophylaxis therapy, the triazole class now predominates. The triazole voriconazole is currently regarded as a drug of choice for the treatment of proven or probable invasive aspergillosis, and has shown significantly higher response rates than amphotericin B deoxycholate in this setting, with fewer severe drug-related adverse events...
March 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28355464/early-diagnosis-of-invasive-mould-infections-and-disease
#12
Frédéric Lamoth, Thierry Calandra
Invasive mould infections (IMIs), such as invasive aspergillosis or mucormycosis, are a major cause of death in patients with haematological cancer and in patients receiving long-term immunosuppressive therapy. Early diagnosis and prompt initiation of antifungal therapy are crucial steps in the management of patients with IMI. The diagnosis of IMI remains a major challenge, with an increased spectrum of fungal pathogens and a diversity of clinical and radiological presentations within the expanding spectrum of immunocompromised hosts...
March 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28355252/factors-associated-with-early-mycological-clearance-in-hiv-associated-cryptococcal-meningitis
#13
Fátima Concha-Velasco, Elsa González-Lagos, Carlos Seas, Beatriz Bustamante
INTRODUCTION: The first-line combination therapy for HIV-associated cryptococcal meningitis (CM), a condition of high mortality particularly in the first two weeks of treatment, consists of amphotericin B plus flucytosine (5-FC). Given that 5-FC remains unavailable in many countries, the knowledge of factors influencing mycological clearance in patients treated with second-line therapy could contribute to effective management. OBJECTIVES: To determine the factors associated with the clearance of Cryptococcus sp...
2017: PloS One
https://www.readbyqxmd.com/read/28348767/first-case-of-mixed-infection-with-cryptococcus-deuterogattii-and-cryptococcus-neoformans-vni-in-an-ivorian-hiv-positive-patient
#14
Fulgence K Kassi, Virginie Bellet, Adama Doumbia, Donika Krasteva, Pascal Drakulovski, Gisèle A Kouakou, François Gatchitch, Eric Delaporte, Jacques Reynes, Michèle Mallié, Hervé I E Menan, Sébastien Bertout
INTRODUCTION: Cryptococcal meningitis (CM) may be caused by several species of Cryptococcus. CASE PRESENTATION: We describe a fatal case of CM in a HIV-positive patient from Ivory Coast infected by Cryptococcus neoformans VNI and Cryptococcusdeuterogattii. Isolates were recovered from cerebrospinal fluid (CSF) prior to systemic antifungal treatment. Six isolates were studied (the entire culture plus five isolated colonies from it). Serotyping was performed via LAC 1 and CAP 64 gene amplification...
August 2016: JMM Case Reports
https://www.readbyqxmd.com/read/28342219/combining-two-antifungal-agents-does-not-enhance-survival-of-galleria-mellonella-larvae-infected-with-madurella-mycetomatis
#15
Kimberly Eadie, Florianne Parel, Marilyn Helvert van Poppel, Ahmed Fahal, Wendy van de Sande
OBJECTIVE: To determine if combination therapy would improve therapeutic outcome in eumycetoma caused by Madurella mycetomatis. METHODS: Survival, colony forming units (CFU), melanisation and histopathology in M. mycetomatis infected Galleria mellonella larvae treated with amphotericin B, itraconazole, terbinafine or combinations thereof were determined. RESULTS: Compared to larvae treated with 5% glucose, enhanced survival was obtained when M...
March 25, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28335692/liposomal-amphotericin-b-ambisome%C3%A2-at-beginning-of-its-third-decade-of-clinical-use
#16
Franco Aversa, Alessandro Busca, Anna Candoni, Simone Cesaro, Corrado Girmenia, Mario Luppi, Anna Maria Nosari, Livio Pagano, Luigina Romani, Giuseppe Rossi, Adriano Venditti, Andrea Novelli
Haematologists have been using liposomal amphotericin-B (L-AMB) since 1993 and despite the introduction of several novel antifungal agents over the past decade, their propensity to prescribe L-AMB remains unchanged. Although antifungal guidelines strongly recommend voriconazole as the drug of choice in the treatment of probable and proven invasive fungal disease (IFD), L-AMB is widely used in the real life because of its several advantages in terms of wide anti-mould spectrum, tolerability and efficacy. Furthermore, the concept that L-AMB is endowed with immune-modulating effects, which may have a role in fighting IFD, represent another reason for its use in patients who do not tolerate an excess of inflammation...
March 24, 2017: Journal of Chemotherapy
https://www.readbyqxmd.com/read/28283014/-fungemia-and-septic-arthritis-caused-by-saprochaete-capitata-in-a-patient-with-fanconi-aplastic-anemia-a-case-report
#17
Ömür Mustafa Parkan, Mustafa Altay Atalay, Ayşe Nedret Koç, Çiğdem Pala, Gonca Aydemir, Leylagül Kaynar
Saprochaete capitata (formerly known as Blastoschizomyces capitatus, Trichosporon capitatum, Geotrichum capitatum) is a rare but emerging yeast-like fungus. It is commonly found in environmental sources and can be isolated from skin, gastrointestinal system and respiratory tract of healthy individuals as well. It mainly infects patients with hematological malignancies such as acute myeloid leukemia (AML), especially in the presence of neutropenia; and mortality rates are high in those patients. Although the data about the in vitro antifungal susceptibility are limited, it is being reported that amphotericin B and voriconazole are more effective on S...
January 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28279786/miltefosine-is-fungicidal-to-paracoccidioides-spp-yeast-cells-but-subinhibitory-concentrations-induce-melanisation
#18
Diego Conrado Pereira Rossi, Cristina de Castro Spadari, Joshua Daniel Nosanchuk, Carlos Pelleschi Taborda, Kelly Ishida
Paracoccidioidomycosis (PCM) is a systemic mycosis caused by the dimorphic fungi Paracoccidioides spp. The duration of antifungal treatment ranges from months to years and relapses may nevertheless occur despite protracted therapy. Thus, there remains an urgent need for new therapeutic options. Miltefosine (MLT), an analogue of alkylphospholipids, has antifungal activity against species of yeast and filamentous fungi. The aim of this study was to evaluate the antifungal effects of MLT on the yeast forms of Paracoccidioides brasiliensis and Paracoccidioides lutzii...
April 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/28275140/antibody-independent-function-of-human-b-cells-contributes-to-antifungal-t-cell-responses
#19
Rui Li, Ayman Rezk, Hulun Li, Jennifer L Gommerman, Alexandre Prat, Amit Bar-Or
Fungal infections (e.g., Candida albicans) can manifest as serious medical illnesses, especially in the elderly and immune-compromised hosts. T cells are important for Candida control. Whether and how B cells are involved in antifungal immunity has been less clear. Although patients with agammaglobulinemia exhibit normal antifungal immunity, increased fungal infections are reported following B cell-depleting therapy, together pointing to Ab-independent roles of B cells in controlling such infections. To test how human B cells may contribute to fungal-associated human T cell responses, we developed a novel Ag-specific human T cell/B cell in vitro coculture system and found that human B cells could induce C...
March 8, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28273850/chitosan-based-nanomedicine-to-fight-genital-candida-infections-chitosomes
#20
Toril Andersen, Ekaterina Mishchenko, Gøril Eide Flaten, Johanna U Ericson Sollid, Sofia Mattsson, Ingunn Tho, Nataša Škalko-Basnet
Vaginal infections are associated with high recurrence, which is often due to a lack of efficient treatment of complex vaginal infections comprised of several types of pathogens, especially fungi and bacteria. Chitosan, a mucoadhesive polymer with known antifungal effect, could offer a great improvement in vaginal therapy; the chitosan-based nanosystem could both provide antifungal effects and simultaneously deliver antibacterial drugs. We prepared chitosan-containing liposomes, chitosomes, where chitosan is both embedded in liposomes and surface-available as a coating layer...
March 4, 2017: Marine Drugs
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