نتایج جستجو برای: artesunate

تعداد نتایج: 1720  

Journal: :The American journal of tropical medicine and hygiene 2003
Wanida Ittarat Amy L Pickard Panthip Rattanasinganchan Polrat Wilairatana Sornchai Looareesuwan Kathryn Emery Jonathan Low Rachanee Udomsangpetch Steven R Meshnick

Artemisinin derivatives are first-line antimalarial drugs in Thailand. No firm evidence of clinically relevant artemisinin resistance exists. When used as monotherapy, artesunate has been associated with a high treatment failure (recrudescence) rate, which could be due to low-level artemisinin resistance. To understand the causes of recrudescence, we retrospectively studied a cohort of 104 mala...

Journal: :Lancet 2001
P Newton S Proux M Green F Smithuis J Rozendaal S Prakongpan K Chotivanich M Mayxay S Looareesuwan J Farrar F Nosten N J White

Artesunate is a key antimalarial drug in the treatment of multidrug-resistant Plasmodium falciparum malaria in southeast Asia. We investigated the distribution of counterfeit artesunate tablets by use of the validated, simple, and inexpensive Fast Red TR dye technique. We also aimed to identify distinguishing characteristics of the fake drugs. Of 104 shop-bought "artesunate" samples from Cambod...

Journal: :Anticancer research 2014
James Murray Sandra Gannon Sarah Rawe James E J Murphy

BACKGROUND/AIM Hypoxia can affect chemotherapeutic drug efficacy in cancer patients, yet related in vitro assays in oxygen-rich environment remain the norm. Such levels are well beyond normoxic/hypoxic levels typically experienced by normal tissues/tumor masses. The present study evaluated how artesunate anti-tumor efficacy is modulated by oxygen availability in HeLa cells and its implications ...

2011
Stephen Akinsomisoye Olumide Yinusa Raji

BACKGROUND Artesunate is commonly used in malaria therapy. Many antimalarial drugs have been associated with male reproductive dysfunction. The effect of artesunate on male reproductive activities was studied using in-vivo and in-vitro experimental models. METHODS Adult male rats (n=6) were orally given artesunate (2.9 mg/kg body weight) on daily basis for five days. Artesunate (2.9 mg/kg bod...

2015
Podjanee Jittamala Sasithon Pukrittayakamee Elizabeth A Ashley François Nosten Borimas Hanboonkunupakarn Sue J Lee Praiya Thana Kalayanee Chairat Daniel Blessborn Salwaluk Panapipat Nicholas J White Nicholas P J Day Joel Tarning

Pyronaridine-artesunate is a newly introduced artemisinin-based combination treatment which may be deployed together with primaquine. A single-dose, randomized, three-sequence crossover study was conducted in healthy Thai volunteers to characterize potential pharmacokinetic interactions between these drugs. Seventeen healthy adults received a single oral dose of primaquine alone (30 mg base) an...

2017
C. Fanello M. Onyamboko S. J. Lee C. Woodrow S. Setaphan K. Chotivanich P. Buffet S. Jauréguiberry K. Rockett K. Stepniewska N. P. J. Day N. J. White A. M. Dondorp

BACKGROUND Parenteral artesunate is the treatment of choice for severe malaria. Recently, haemolytic anaemia occurring 1 to 3 weeks after artesunate treatment of falciparum malaria has been reported in returning travellers in temperate countries. METHODS To assess these potential safety concerns in African children, in whom most deaths from malaria occur, an open-labelled, randomized controll...

Journal: :Nigerian journal of physiological sciences : official publication of the Physiological Society of Nigeria 2009
A W Obianime J S Aprioku

In this study, the comparative effects of half, normal and double clinical doses of artesunate; artesunate/sulfadoxine/pyrimethamine; artesunate/amodiaquine and their combinants [sulfadoxine/pyrimethamine and amodiaquine] on the semen parameters namely total sperm count, motility, morphology, debris and premature/primordial cell count of the male guinea-pig were investigated. The agents caused ...

2013
Debashish Das Rupam Tripura Aung Pyae Phyo Khin Maung Lwin Joel Tarning Sue J. Lee Warunee Hanpithakpong Kasia Stepniewska Didier Menard Pascal Ringwald Kamolrat Silamut Mallika Imwong Kesinee Chotivanich Poravuth Yi Nicholas P. J. Day Niklas Lindegardh Duong Socheat Chea Nguon Nicholas J. White François Nosten Arjen M. Dondorp

BACKGROUND The emergence of Plasmodium falciparum resistance to artemisinins on the Cambodian and Myanmar-Thai borders poses severe threats to malaria control. We investigated whether increasing or splitting the dose of the short-half-life drug artesunate improves parasite clearance in falciparum malaria in the 2 regions. METHODS In Pailin, western Cambodia (from 2008 to 2010), and Wang Pha, ...

Journal: :The Ceylon medical journal 2002
K L Weerasinghe G Galappaththy W P Fernando D R Wickremasinghe H M Faizal A R Wickremasinghe

OBJECTIVE To determine effectiveness and safety of the combination of artesunate, sulphadoxine + pyrimethamine and primaquine in the treatment of P falciparum malaria. DESIGN A hospital based prospective study. SETTING Base Hospital, Moneragala. METHODS In 30 P falciparum infected patients admitted to the hospital, blood was taken for estimation of haemoglobin, white cell counts, and seru...

Journal: :BMC Infectious Diseases 2008
Melba Gomes Isabela Ribeiro Marian Warsame Harin Karunajeewa Max Petzold

BACKGROUND Rectal administration of artemisinin derivatives has potential for early treatment for severe malaria in remote settings where injectable antimalarial therapy may not be feasible. Preparations available include artesunate, artemisinin, artemether and dihydroartemisinin. However each may have different pharmacokinetic properties and more information is needed to determine optimal dose...

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