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Liposomal amphotericine b

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https://www.readbyqxmd.com/read/29023446/towards-elimination-of-visceral-leishmaniasis-in-the-indian-subcontinent-translating-research-to-practice-to-public-health
#1
REVIEW
Siddhivinayak Hirve, Axel Kroeger, Greg Matlashewski, Dinesh Mondal, Megha Raj Banjara, Pradeep Das, Ahmed Be-Nazir, Byron Arana, Piero Olliaro
BACKGROUND: The decade following the Regional Strategic Framework for Visceral Leishmaniasis (VL) elimination in 2005 has shown compelling progress in the reduction of VL burden in the Indian subcontinent. The Special Programme for Research and Training in Tropical Diseases (TDR), hosted by the World Health Organization (WHO) and other stakeholders, has coordinated and financed research for the development of new innovative tools and strategies to support the regional VL elimination initiative...
October 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29021093/disseminated-cryptococcosis-in-a-patient-taking-tocilizumab-for-castleman-s-disease
#2
Hiroaki Nishioka, Hiroshi Takegawa, Hiroki Kamei
Infections occur more frequently in patients receiving biologics. However, cryptococcal infection is uncommon in patients receiving tocilizumab, an interleukin-6 inhibitor, in contrast to patients receiving tumor necrosis factor-α inhibitors. In this report, we describe a case of disseminated cryptococcosis in a 55-year-old man who was receiving tocilizumab every 2 weeks along with daily prednisolone and cyclosporine for Castleman's disease. He initially developed cellulitis on both upper limbs, and his condition worsened despite antibacterial therapy...
October 8, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/29020350/monitoring-of-parasite-kinetics-in-indian-post-kala-azar-dermal-leishmaniasis
#3
Srija Moulik, Surya Jyati Chaudhuri, Bikash Sardar, Manab Ghosh, Bibhuti Saha, Nilay Kanti Das, Mitali Chatterjee
Background: The potential reservoirs of Leishmaniasis in South Asia include relapsed cases of visceral leishmaniasis, patients with Post-Kala-azar dermal leishmaniasis (PKDL) and an asymptomatically infected population. Therefore, assessment of cure in terms of parasite clearance, early detection of PKDL and asymptomatic VL are pivotal for ensuring elimination. This study aimed to monitor the efficacy of Miltefosine and Liposomal Amphotericin B (LAmB) in PKDL based on parasite load. Methods: Patients with PKDL were recruited from the Dermatology outpatient departments or during active field surveys...
September 13, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29018581/cost-effectiveness-of-diagnostic-therapeutic-strategies-for-paediatric-visceral-leishmaniasis-in-morocco
#4
Sergi Alonso, Nabil Tachfouti, Adil Najdi, Elisa Sicuri, Albert Picado
INTRODUCTION: Visceral leishmaniasis (VL) is a neglected parasitic disease with a high fatality rate if left untreated. Endemic in Morocco, as well as in other countries in the Mediterranean basin, VL mainly affects children living in rural areas. In Morocco, the direct observation of Leishmania parasites in bone marrow (BM) aspirates is used to diagnose VL and meglumine antimoniate (SB) is the first line of treatment. Less invasive, more efficacious and safer alternatives exist. In this study we estimate the cost-effectiveness of alternative diagnostic-therapeutic algorithms for paediatric VL in Morocco...
2017: BMJ Global Health
https://www.readbyqxmd.com/read/29016288/efficacy-and-safety-of-liposomal-amphotericin-b-for-visceral-leishmaniasis-in-children-and-adolescents-at-a-tertiary-care-center-in-bihar-india
#5
Krishna Pandey, Biplab Pal, Niyamat Ali Siddiqui, Vidya Nand Rabi Das, Krishna Murti, Chandra Shekhar Lal, Neena Verma, Rajendra Babu, Vahab Ali, Rakesh Kumar, Pradeep Das
Liposomal amphotericin B is being used increasingly to reduce the burden of kala-azar from the Indian subcontinent. There are studies which have evaluated efficacy and safety of liposomal amphotericin B for visceral leishmaniasis in all age groups. However, the only study that specifically addressed treatment of childhood visceral leishmaniasis did not include all ages or document renal and liver function. We, therefore, felt it was important to reassess the efficacy and safety of single dose liposomal amphotericin B in children and adolescents...
September 5, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28992055/amphotericin-b-concentrations-in-healthy-mallard-ducks-anas-platyrhynchos-following-a-single-intratracheal-dose-of-liposomal-amphotericin-b-using-an-atomizer
#6
Ashley Phillips, Christine V Fiorello, Rachel M Baden, Jack H Liu, Nathaniel C Burmas, Carlos A Ruvalcaba, Roger Monroy, F Charles Mohr, Ronette Gehring, Jean-Pierre Delplanque, Karl V Clemons, David A Stevens, Lisa A Tell
Aspergillosis is a fungal infection that primarily affects the respiratory tract. Amphotericin B has broad antifungal activity and is commonly used to treat aspergillosis, a fungal pneumonia that is a common sequela in oiled waterfowl as well as other birds in wildlife rehabilitation. Pharmacokinetic parameters of nebulized amphotericin B in an avian model have been reported, but those of direct intratracheal delivery have yet to be established. The objective of this study was to evaluate if a single 3 mg/kg dose of liposomal amphotericin B delivered intratracheally using a commercial atomizer would achieve plasma and lung tissue concentrations exceeding targeted minimum inhibitory concentrations (MIC) for Aspergillus species in adult mallard ducks (Anas platyrhynchos)...
August 3, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28988704/fungal-infections-of-the-central-nervous-system-in-small-animals-clinical-features-diagnosis-and-management
#7
REVIEW
R Timothy Bentley, Amanda R Taylor, Stephanie A Thomovsky
Small animal mycoses vary geographically. Different clinical presentations are seen in animals with infection of the central nervous system (CNS), including multifocal meningoencephalomyelitis, intracranial lesions that accompany sinonasal lesions, rapidly progressive ventriculitis, or solitary granuloma of the brain or spinal cord. Systemic, nasal, or extraneural clinical signs are common but, especially in granuloma cases, do not always occur. Surgery may have a diagnostic and therapeutic role in CNS granuloma...
October 5, 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/28978601/isolated-cerebral-mucormycosis-caused-by-rhizomucor-pusillus
#8
Saira Farid, Omar AbuSaleh, Rachael Liesman, Muhammad Rizwan Sohail
A 61-year-old man with relapsing chronic lymphocytic leukaemia, status post allogeneic stem cell transplant and multiple chemotherapy regimens presented to the emergency room after suffering a grand mal seizure. His evaluation revealed a 1.5-2 cm ring-enhancing left temporal lobe brain lesion on the CT scan. This brain lesion was resected and the histopathology revealed an invasive fungal organism resembling mucormycosis. Amplification and sequencing of the 28S ribosomal RNA gene identified the organism as Rhizomucor pusillus The patient was treated with liposomal amphotericin B 5 mg/kg every 24 hours for 4 weeks, and then was transitioned to oral posaconazole...
October 4, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28968400/a-clinical-severity-scoring-system-for-visceral-leishmaniasis-in-immunocompetent-patients-in-south-sudan
#9
Suzette S Kämink, Simon M Collin, Tim Harrison, Francis Gatluak, Abdul Wasay Mullahzada, Koert Ritmeijer
BACKGROUND: South Sudan is one of the most endemic countries for visceral leishmaniasis (VL), and is frequently affected by large epidemics. In resource-limited settings, clinicians require a simple clinical tool to identify VL patients who are at increased risk of dying, and who need specialised treatment with liposomal amphotericin B and other supportive care. The aim of this study was to develop and validate a clinical severity scoring system based on risk factors for death in VL patients in South Sudan...
October 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28967274/the-care-and-feeding-of-a-commercial-liposomal-product-liposomal-amphotericin-b-ambisome%C3%A2
#10
G M Jensen
AmBisome (liposomal amphotericin B) is among the earliest approved liposomal therapeutics, and has been in commercial use since the early 1990s. This review provides examples of non-clinical, regulatory, clinical label expansion, adverse event management, and supply chain control reflecting the real world challenges of a commercial liposomal therapeutic. We review examples of post-approval clinical development in severe lung infections, development of US and European guidance documents around liposomal therapeutics, the creation of a suitable placebo for blinded clinical trials, response to findings of a possible new category of adverse event (what turned out to be pseudohyperphosphatemia), challenges in handling the finished product in a setting with high risk of exposure of the product to temperatures outside of the established label storage conditions, and elements of continuingly increased aseptic processing requirements for manufacturing...
October 2, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28965793/systemic-cryptococcosis-in-an-immune-competent-child
#11
Arushi Gahlot Saini, Sooraj Patil, Triptee Agrawal, Aseem Basha, Rashi Garg, M R Shivaprakash, Pankaj Vaidya, Akshay Saxena, Pratibha Singhi
Crytococcus neoformans is an encapsulated yeast that frequently affects immune-compromised patients, although increasingly being detected in the immune-competent host as well. We report a case of disseminated cryptococcosis in a young child in whom no immune deficiency was yet identified. A 4-year-old child presented with high-grade fever, intermittent abdominal pain and generalized skin eruptions for the past two months. He had pallor, firm lymphadenopathy, skin lesions with scarring and firm hepatosplenomegaly...
September 28, 2017: Journal of Infection and Public Health
https://www.readbyqxmd.com/read/28954068/the-direct-costs-of-treating-human-visceral-leishmaniasis-in-brazil
#12
Tália Santana Machado de Assis, Dian Carlos Pinheiro Rosa, Eliane de Morais Teixeira, Gláucia Cota, André Luís Ferreira Azeredo-da-Silva, Guilherme Werneck, Ana Rabello
INTRODUCTION: The drugs available for visceral leishmaniasis (VL) treatment in Brazil have specific characteristics in terms of operability, effectiveness, toxicity, and cost. The aim of this study was to estimate the direct costs of therapies recommended by the Ministry of Health (MH) for VL treatment in Brazil. METHODS: The analytical perspective used was that adopted by the Brazilian Public Health System. Three drugs and four regimens were included: 1) N-methyl glucamine antimoniate intramuscularly at 20mg per kg per day for 30 days; 2) N-methyl glucamine antimoniate intravenously at 20mg per kg per day for 30 days; 3) amphotericin B deoxycholate at 1mg per kg per day for 21 days; and 4) liposomal amphotericin B at 3mg per kg per day for a 7 days treatment...
July 2017: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/28946803/anti-biofilm-activity-of-a-sophorolipid-amphotericin-b-niosomal-formulation-against-candida-albicans
#13
Farazul Haque, Mohammad Sajid, Swaranjit Singh Cameotra, Mani Shankar Battacharyya
Sophorolipids (SLs) have gained interest in the pharmaceutical industries due to their anti-microbial, anti-adhesive and anti-biofilm properties. In the present study, the production of SL was increased by using low-cost media components. The potential of a SL-based niosomal formulation of amphotericin B (AmB) was determined against biofilm of the opportunistic fungal pathogen Candida albicans. In-house prepared SL-AmB niosomes were characterized by different microscopic techniques. The mean entrapment efficiency of AmB within SL-AmB niosome was 63...
September 26, 2017: Biofouling
https://www.readbyqxmd.com/read/28944144/osteomyelitis-due-to-multiple-rare-infections-in-a-patient-with-idiopathic-cd4-lymphocytopenia
#14
Nitin Gupta, Sayantan Banerjee, Timitrov, Rohini Sharma, Shambo Guha Roy, Trupti M Shende, Mohammed Tahir Ansari, Gagandeep Singh, Neeraj Nischal, Naveet Wig, Manish Soneja
A 26-year-old male patient presented with features suggestive of osteomyelitis involving the entire left femur, hip joint and knee joint. Culture from the debrided tissue grew Acinetobacter spp. and he was treated with sensitivity based antibiotics but the symptoms did not resolve. The synovial biopsy showed multinucleated giant cells and acid fast bacilli on Ziehl Neelsen stain. Cartridge based nucleic acid amplification test (GeneXpert) was negative. The Mycobacteria growth indicator tube culture was found to be positive for Mycobacterium abscessus...
August 2017: Intractable & Rare Diseases Research
https://www.readbyqxmd.com/read/28928478/biomimetically-engineered-amphotericin-b-nano-aggregates-circumvent-toxicity-constraints-and-treat-systemic-fungal-infection-in-experimental-animals
#15
Qamar Zia, Owais Mohammad, Mohd Ahmar Rauf, Wasi Khan, Swaleha Zubair
Biomimetic synthesis of nanoparticles offers a convenient and bio friendly approach to fabricate complex structures with sub-nanometer precision from simple precursor components. In the present study, we have synthesized nanoparticles of Amphotericin B (AmB), a potent antifungal agent, using Aloe vera leaf extract. The synthesis of AmB nano-assemblies (AmB-NAs) was established employing spectro-photometric and electron microscopic studies, while their crystalline nature was established by X-ray diffraction...
September 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28925873/silver-nanoparticles-with-high-loading-capacity-of-amphotericin-b-characterization-bactericidal-and-antifungal-effects
#16
Victoria Leonhard, Roxana Valeria Alasino, Adrián Muñoz, Dante Miguel Beltramo
The purpose of this study was to evaluate the most appropriate conditions to generate silver nanoparticles (AgNPs) loaded with a potent antimycotic drug like amphotericin B (AmB), characterize the physicochemical properties, and also evaluate the cytotoxic effect and biological activity of these new nanostructures as a potential nanocarrier for hydrophobic drugs. It was determined that the optimal molar ratio between Ag and AmB is 1/1 given the uniformity of size around 1750 nm of the nanoparticles generated as well as their strongly negative ζ potential of -27 mV, a condition that favors repulsions between AgNPs and inhibiting their aggregation...
September 18, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28900419/enhanced-killing-and-antibiofilm-activity-of-encapsulated-cinnamaldehyde-against-candida-albicans
#17
Shahper N Khan, Shakir Khan, Jawed Iqbal, Rosina Khan, Asad U Khan
Candida sp. impelled opportunistic infection in immune-compromised patients ensuing from asymptomatic colonization to pathogenic forms. Moreover, slow spread of Candida species inducing refractory mucosal and invasive infections brings acute resistance to antifungal drugs. Hence, here we probed the effect of encapsulated preparation of cinnamaldehyde (CNMA) in multilamellar liposomes (ML) against Candida albicans. The efficacy of ML-CNMA against Candida biofilm was assessed by scanning electron microscopy, transmission electron microscopy, as well as light microscopy and its percent inhibition, was determined by XTT [2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide] and crystal violet assay...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28898610/-visceral-leishmaniasis-in-hiv-infected-patients-the-challenge-of-relapse-and-treatment-failure
#18
Patrícia Cipriano, Ana Cláudia Miranda, Isabel Antunes, Kamal Mansinho
INTRODUCTION: Visceral leishmaniasis is an endemic disseminated infection, considered to be the third most frequent opportunistic parasitic infection in Europe. It is especially prevalent in patients co-infected with human immunodeficiency virus, in whom it poses a great therapeutic challenge due to increased risk of relapse. The goal of this study is to characterize a population of co-infected patients, as well as the efficiency of the adopted treatment strategies. MATERIAL AND METHODS: Retrospective study with a sample composed of all patients with visceral leishmaniasis and human immunodeficiency virus admitted in an Infectious Diseases ward over a period of 10 years...
June 30, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28874072/liposomal-formulations-in-the-pharmacological-treatment-of-leishmaniasis-a-review
#19
Vanessa Ortega, Selma Giorgio, Eneida de Paula
Conventional chemotherapy for leishmaniasis includes considerably toxic drugs and reports of drug-resistance are not uncommon. Liposomal encapsulated drugs appear as an option for the treatment of leishmaniasis, providing greater efficacy for the active and reducing its side effects by promoting superior tissue absorption, favoring drug penetration into the macrophages, and retarding its clearance from the site of action. In this paper, a review on the advances achieved with liposome-based anti-leishmaniasis drug delivery systems is presented...
September 5, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28872724/successful-treatment-of-bilateral-endogenous-fusarium-solani-endophthalmitis-in-a-patient-with-acute-lymphocytic-leukemia
#20
Ilaria Rizzello, Fausto Castagnetti, Pier Giorgio Toschi, Patrizia Bertaccini, Laura Primavera, Michela Paolucci, Luca Faccioli, Luca Spinardi, Russell E Lewis, Michele Cavo, Marta Stanzani
Fusarium spp. are an uncommon cause of fungemia in immunocompromised and neutropenic patients that may hematogenously disseminate to the eyes. Herein, we describe a patient with acute lymphoblastic leukemia and a prior history of extensive corticosteroid exposure who developed disseminated Fusarium solani infection following chemotherapy despite posaconazole prophylaxis. She was successfully treated with combination liposomal amphotericin B and voriconazole, intraocular injections of voriconazole, topical amphotericin B and bilateral vitrectomy...
September 5, 2017: Mycoses
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