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Liposomal amphotericine b

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https://www.readbyqxmd.com/read/28630200/treatment-of-experimental-visceral-leishmaniasis-with-single-dose-liposomal-amphotericin-b-pharmacodynamics-and-biodistribution-at-different-stages-of-disease
#1
Andrew A Voak, Andy Harris, Zeeshan Qaiser, Simon L Croft, Karin Seifert
Visceral leishmaniasis is a neglected tropical disease, which causes significant morbidity and mortality worldwide. Characterising the pharmacokinetics and pharmacodynamics of anti-leishmanial drugs in pre-clinical models is important for drug development and use. Here we investigated the pharmacodynamics and drug distribution of AmBisome® in L. donovani infected BALB/c mice at three different dose levels and two different time points after infection. We additionally compared drug levels in plasma, liver and spleen in infected and uninfected BALB/c mice over time...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28630182/study-of-biodistribution-and-in-vivo-anti-leishmanial-activity-of-a-distigmasterylhemisuccinoyl-glycero-phosphocholine-liposome-intercalated-amphotericin-b
#2
Maryam Iman, Zhaohua Huang, Seyedeh Hoda Alavizadeh, Francis C Szoka, Mahmoud R Jaafari
Distigmasterylhemisuccinoyl-sn-glycero-3- phosphocholine (DSHemsPC) is a new lipid in which two molecules of stigmasterol (an inexpensive plant sterol) are covalently linked via a succinic acid to glycerophosphocholine. Our previous study revealed that a liposome-intercalated Amphotericin B prepared from DSHemsPC (DSHemsPC-Lip-AmB) possess excellent colloidal properties and in vitro antifungal and anti-leishmanial activity similar to AmBisome™. The aim of this study was to determine biodistribution and evaluate the anti-leishmanial effects of DSHemsPC-Lip-AmB in Leishmania major-infected BALB/c mice...
June 19, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28622334/sterol-14%C3%AE-demethylase-mutation-leads-to-amphotericin-b-resistance-in-leishmania-mexicana
#3
Roy Mwenechanya, Julie Kovářová, Nicholas J Dickens, Mudaliar Manikhandan, Pawel Herzyk, Isabel M Vincent, Stefan K Weidt, Karl E Burgess, Richard J S Burchmore, Andrew W Pountain, Terry K Smith, Darren J Creek, Dong-Hyun Kim, Galina I Lepesheva, Michael P Barrett
Amphotericin B has emerged as the therapy of choice for use against the leishmaniases. Administration of the drug in its liposomal formulation as a single injection is being promoted in a campaign to bring the leishmaniases under control. Understanding the risks and mechanisms of resistance is therefore of great importance. Here we select amphotericin B-resistant Leishmania mexicana parasites with relative ease. Metabolomic analysis demonstrated that ergosterol, the sterol known to bind the drug, is prevalent in wild-type cells, but diminished in the resistant line, where alternative sterols become prevalent...
June 16, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28620958/a-network-meta-analysis-of-primary-prophylaxis-for-invasive-fungal-infection-in-haematological-patients
#4
REVIEW
L P Leonart, F S Tonin, V L Ferreira, S T S Penteado, A Wiens, F A Motta, R Pontarolo
WHAT IS KNOWN AND OBJECTIVE: Antifungal prophylaxis is an option to reduce the incidence of invasive fungal infection (IFI) in haematological patients. To date, no network meta-analysis (NMA) of high-quality evidence (double-blind randomized controlled trials) has been performed on this subject. This systematic review and NMA aimed to evaluate the safety and efficacy of different antifungal agents used for prophylaxis of IFI in patients with haematological disorders. METHODS: A systematic review was performed according to PRISMA and Cochrane recommendations...
June 15, 2017: Journal of Clinical Pharmacy and Therapeutics
https://www.readbyqxmd.com/read/28607011/liposomal-amphotericin-b-nephrotoxicity-in-patients-with-hematological-malignancies-a-retrospective-cohort-analysis
#5
Marta Stanzani, Nicola Vianelli, Michele Cavo, Alessandro Maritati, Marta Morotti, Russell E Lewis
We retrospectively examined the incidence, onset, risk factors, and outcomes of renal injury during 103 treatment courses of liposomal amphotericin B (L-AMB) in 97 adult patients with hematological malignancies. All patients were analyzed before, during and after the administration of L-AMB, and renal injury was graded per the RIFLE criteria. Most patients (87.3%) received L-AMB at 3 mg/kg/day. Nearly two-thirds (61.7%) of treatment courses did not meet any RIFLE category for renal injury, while 19.4% of patients were classified at risk, 13...
June 12, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28591186/increasing-incidence-of-mucormycosis-in-a-large-spanish-hospital-from-2007-to-2015-epidemiology-and-microbiological-characterization-of-the-isolates
#6
Jesús Guinea, Pilar Escribano, Antonio Vena, Patricia Muñoz, María Del Carmen Martínez-Jiménez, Belén Padilla, Emilio Bouza
We studied 19 cases of proven/probable mucormycosis diagnosed from 2007 to 2015 in our hospital and assessed the microbiological characteristics of the isolates. We recorded the incidence of mucormycosis and clinical and microbiological data of infected patients. Isolates were identified to molecular level and tested for their antifungal susceptibility to azoles, amphotericin B, and liposomal amphotericin B according to the CLSI M-38 A2 procedure. The incidence of mucormycosis in cases/100,000 hospital admissions during 2007-2015 increased significantly with respect to that reported in 1988-2006 (3...
2017: PloS One
https://www.readbyqxmd.com/read/28590275/endobronchial-ultrasound-guided-transbronchial-needle-injection-of-liposomal-amphotericin-b-for-the-treatment-of-symptomatic-aspergilloma
#7
Mihir S Parikh, Eric Seeley, Evelyn Nguyen-Tran, Ganesh Krishna
Surgical treatment with lung resection has traditionally been the treatment of choice for pulmonary cavities containing aspergillomas that cause hemoptysis. Endobronchial ultrasound (EBUS) is a minimally invasive bronchoscopic technique that is commonly used for transbronchial needle aspiration of hilar and mediastinal lymph nodes as well as centrally located parenchymal lesions. Here, we describe a case of a 71-year-old woman who was found to have a cavitary lesion in the lung containing aspergillomas. Under direct ultrasound visualization with EBUS, liposomal amphotericin B was injected into the aspergillomas...
June 5, 2017: Journal of Bronchology & Interventional Pulmonology
https://www.readbyqxmd.com/read/28584138/initial-treatment-of-cancer-patients-with-fluconazole-susceptible-dose-dependent-candida-glabrata-fungemia-better-outcome-with-an-echinocandin-or-polyene-compared-to-an-azole
#8
Audrey Le, Dimitrios Farmakiotis, Jeffrey J Tarrand, Dimitrios P Kontoyiannis
28-day crude mortality in 68 cancer patients with fluconazole susceptible dose-dependent Candida glabrata fungemia started on treatment (within 48 hours after blood culture collection) with an echinocandin or liposomal amphotericin-B was better (30%), compared to those treated with azole monotherapy (52%, p=0.07). After adjusting for confounders, azole monotherapy was associated with worse 28-day survival (hazard ratio 3.8, p=0.003).
June 5, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28580237/combination-liposomal-amphotericin-b-posaconazole-and-oral-amphotericin-b-for-treatment-of-gastrointestinal-mucorales-in-an-immunocompromised-patient
#9
Anthony Anderson, Dayna McManus, Sarah Perreault, Ying-Chun Lo, Stuart Seropian, Jeffrey E Topal
Mucormycosis is a life threatening infection caused by fungi in the order Mucorales. Mucormycosis can affect any organ system with rhino-orbital-cerebral and pulmonary infections being the most predominant infection types. Gastrointestinal mucormycosis is rare and accounts for only 4-7% of all cases. Here, we present a case of invasive gastrointestinal mucormycosis in an immunocompromised host treated with systemic and topical anti-mold therapy.
September 2017: Medical Mycology Case Reports
https://www.readbyqxmd.com/read/28578095/pseudohypophosphatemia-associated-with-high-dose-liposomal-amphotericin-b-therapy
#10
James A Mays, Dina N Greene, Anne Poon, Anna E Merrill
BACKGROUND: Hypophosphatemia is commonly observed in critically ill patients. Inorganic phosphorus is quantified by spectrophotometric measurement of a phosphomolybdate complex, a method with multiple documented interferents. Our clinical laboratory was contacted to investigate a case of asymptomatic hypophosphatemia in a patient receiving high-dose liposomal amphotericin B therapy (L-AMB). METHODS: In vitro experiments were performed by spiking L-AMB into residual plasma specimens...
May 31, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28577122/successful-treatment-of-pulmonary-mucormycosis-caused-by-cunninghamella-bertholletiae-with-high-dose-liposomal-amphotericin-b-10%C3%A2-mg-kg-day-followed-by-a-lobectomy-in-cord-blood-transplant-recipients
#11
Hikari Ota, Hisashi Yamamoto, Muneyoshi Kimura, Hideki Araoka, Takeshi Fujii, Takashi Umeyama, Hideaki Ohno, Yoshitsugu Miyazaki, Daisuke Kaji, Yuki Taya, Aya Nishida, Kazuya Ishiwata, Masanori Tsuji, Shinsuke Takagi, Yuki Asano-Mori, Go Yamamoto, Naoyuki Uchida, Koji Izutsu, Kazuhiro Masuoka, Atsushi Wake, Akiko Yoneyama, Shigeyoshi Makino, Shuichi Taniguchi
Infection caused by Cunninghamella bertholletiae carries one of the highest mortality rates among mucormycosis, and there are no reported cases that survived from the infection in allogeneic hematopoietic stem cell transplantation recipients occurring before neutrophil engraftment. Here, we present two cases of pulmonary mucormycosis caused by C. bertholletiae occurring before neutrophil engraftment after cord blood transplantation. Both were successfully treated with high-dose liposomal amphotericin B (10 mg/kg/day) combined with micafungin, which was then followed by neutrophil recovery, reduction in immunosuppressive agents, and a subsequent lobectomy...
June 2, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28575414/randomized-comparison-of-liposomal-amphotericin-b-versus-placebo-to-prevent-invasive-mycoses-in-acute-lymphoblastic-leukaemia
#12
Oliver A Cornely, Thibaut Leguay, Johan Maertens, Maria J G T Vehreschild, Achilles Anagnostopoulos, Carlo Castagnola, Luisa Verga, Christina Rieger, Mustafa Kondakci, Georg Härter, Rafael F Duarte, Bernardino Allione, Catherine Cordonnier, Claus Peter Heussel, C Orla Morrissey, Samir G Agrawal, J Peter Donnelly, Mark Bresnik, Michael J Hawkins, Will Garner, Nicola Gökbuget
Objectives: To prevent invasive fungal disease (IFD) in adult patients undergoing remission-induction chemotherapy for newly diagnosed acute lymphoblastic leukaemia (ALL). Patients and methods: In a double-blind multicentre Phase 3 study, patients received prophylactic liposomal amphotericin B (L-AMB) at 5 mg/kg intravenously or placebo twice weekly in a 2:1 random allocation during remission-induction treatment. The primary endpoint was the development of proven or probable IFD...
May 30, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28558705/disseminated-cryptococcosis-with-recurrent-multiple-abscesses-in-an-immunocompetent-patient-a-case-report-and-literature-review
#13
Qiaoling Ruan, Yimin Zhu, Shu Chen, Liping Zhu, Shu Zhang, Wenhong Zhang
BACKGROUND: Cryptococcus neoformans is frequently present as an opportunistic pathogen mainly affecting immunocompromised populations. Disseminated C. neoformans infection in immunocompetent population is rare and usually involves lung and central nerve system. Cryptococcus from biologic samples can easily grow on routine fungal and bacterial culture media. Besides, cryptococcal latex agglutination test has been established as a reliable diagnostic tool with overall sensitivities of 93-100%...
May 30, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28552257/-allergic-bronchopulmonary-aspergillosis-evaluation-of-a-maintenance-therapy-with-nebulized-ambisome-%C3%A2
#14
C Godet, F Couturaud, S Ragot, F Laurent, A L Brun, A Bergeron, J Cadranel
BACKGROUND: Allergic bronchopulmonary aspergillosis (ABPA) affects 3-13% of patients with asthma. Its natural history includes possibly life-threatening exacerbations and evolution towards fixed obstructive ventilatory disorders or even irreversible lung fibrosis lesions. ABPA prognosis is directly associated with exacerbation control and the main objective of the treatment is to decrease their frequency and duration. Recommendations regarding dosage and duration of treatment are not very precise...
May 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/28546303/intraocular-minocycline-for-the-treatment-of-ocular-pythiosis
#15
Fátima Ros Castellar, Carmen Sobrino Jiménez, Almudena del Hierro Zarzuelo, Alicia Herrero Ambrosio, Ana Boto de Los Bueis
PURPOSE: A case of ocular pythiosis successfully treated with surgery and intraocular and oral minocycline is reported. SUMMARY: A 30-year-old man who wore corrective contact lenses traveled to Brazil and Colombia where he swam in salt and fresh waters while wearing contact lenses. He sought treatment at an emergency department after 2 weeks of suffering with a painful corneal ulcer, redness, and loss of vision in his right eye that had been treated at other centers with ophthalmic moxifloxacin for 10 days and with fortified topical antibiotics (amikacin and vancomycin) for 2 days...
June 1, 2017: American Journal of Health-system Pharmacy: AJHP
https://www.readbyqxmd.com/read/28545901/management-of-aspergillus-pleural-empyema-with-combined-systemic-and-intrapleural-antifungal-therapy-in-a-pediatric-patient-case-report
#16
Alanoud Almuhareb, Zakaria Habib
We present the case of an 8-year-old immunocompromised boy with invasive pulmonary aspergillosis, complicated with pleural empyema and disseminated to the bone and central nervous system (CNS). The patient was treated with combined systemic antifungal agents (voriconazole and caspofungin) and intrapleural instillation of liposomal amphotericin B, in addition to surgical intervention. The treatment was well tolerated and resulted in remarkable clinical and radiological pulmonary improvement.
May 22, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28533242/coadministration-of-liposomal-amphotericin-b-and-contrast-medium-does-not-increase-risk-of-kidney-injury
#17
John C O'Horo, Douglas R Osmon, Omar M Abu Saleh, Jasmine R Marcelin, Kamel A Gharaibeh, Abdurrahman M Hamadah, Amelia K Barwise, Bryce M Kayhart, Jennifer S McDonald, Robert J McDonald, Nelson Leung
Intravenous radiographic contrast medium and amphotericin B are commonly required in the care of patients with fungal infections. Both interventions have proposed nephrotoxicity through similar mechanisms. We systematically examined patients who received coadministration of liposomal amphotericin B (AmBisome; GE Healthcare) and intravenous contrast medium within a 24-hour period and compared them with patients who underwent non--contrast medium studies. We found 114 cases and 85 controls in our study period...
May 22, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28531175/weekly-high-dose-liposomal-amphotericin-b-l-amb-in-critically-ill-septic-patients-with-multiple-candida-colonization-the-ambidex-study
#18
Elie Azoulay, Jean-François Timsit, Alexandre Lautrette, Stephane Legriel, Adeline Max, Stephane Ruckly, Benoit Misset, Yves Cohen, Michel Wolff
BACKGROUND: To demonstrate the feasibility and safety of weekly high-dose liposomal amphotericin B (L-AmB) (as a pre-emptive antifungal treatment) for 2 weeks in patients with septic shock and Candida colonization. METHODS: Pilot, multicentre, open-label, prospective study conducted in seven French ICUs. Non-immunocompromised patients, receiving mechanical ventilation were eligible if they presented ICU-acquired severe sepsis requiring newly administered antibacterial agents and Candida colonization in at least two sites...
2017: PloS One
https://www.readbyqxmd.com/read/28530056/-cutaneous-leishmaniasis-in-israel-2016-an-update
#19
REVIEW
Michal Solomon, Eli Schwartz
Leishmaniasis is endemic in Israel and is increasing in its frequency. The pathogens that cause cutaneous leishmaniasis (CL) in Israel are Leishmania major (L. major) and Leishmania tropica (L. tropica). In recent years, there have been significant changes in the distribution of these species. L. major is endemic mainly in the Negev, Arava and the Beit She'an Valley. L. tropica is endemic in Tiberias, northern Sea of Galilee, Samaria and in the vicinity of Jerusalem such as at Kfar Adumim, Ma'ale Adumim and Anathoth (north-east of Jerusalem)...
October 2016: Harefuah
https://www.readbyqxmd.com/read/28527169/isolated-renal-mucormycosis
#20
R Sriranga, Satyajeet Pawar, Wasim Khot, Neeraj Nischal, Manish Soneja, H A Venkatesh, Ragesh R Nair, Raj Kanna, Mehar C Sharma, S K Sharma
Mucormycosis in humans has been described as early as 1885 in literature. Isolated renal mucormycosis is rare as it has been mainly described in developing countries like India and China. It is rarer still to find this entity in immunocompetent young males without any risk factors. Specific guidelines on the treatment is not yet known but combined surgical and medical therapy is considered the best modality for its management. We describe a young male who presented with bilateral hydroureteronephrosis. He was initially treated as a case renal tuberculosis which is relatively more common in TB endemic country like ours...
April 2017: Journal of the Association of Physicians of India
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