Navigation Links
Single Drug Dose Cures Malaria in Mice

Johns Hopkins University researchers have cured malaria-infected mice with single shots of a new series of potent, long lasting synthetic drugs modeled on an ancient Chinese// herbal folk remedy. The team also has developed several other compounds, which defeated the febrile disease in rodents after three oral doses.

These peroxide compounds, containing a crucial oxygen-oxygen unit, promise not only to be more effective than today's best malaria remedies, but also potentially safer and more efficient, said research team leader Dr Gary Posner, Scowe Professor of chemistry in the Krieger School of Arts and Sciences at Johns Hopkins.

"We are disclosing, for the first time, the curative activity of a new generation of compounds that are long-lasting and therapeutic, even when used by themselves," Posner said. "Older drugs in this family of peroxide anti malarials also are known to be fast-acting, but they are unfortunately short-lived and not curative when used by themselves."

Though they say their results are very promising, the researchers caution that the new compounds must be thoroughly tested for safety and for how they are absorbed, distributed and metabolized in, and eliminated from, rodents' bodies before human tests begin.

Malaria afflicts between 300 million and 500 million people a year, killing between 1.5 million and 3 million, mostly children and mostly in developing nations. The most commonly fatal species of the malaria parasite now shows strong resistance to most current treatments, making the development of effective new drugs a worldwide priority.

Since 1992, Posner and his team, which includes collaborator Theresa Shapiro, Professor and Chair of clinical pharmacology at the Johns Hopkins School of Medicine, have been tackling that challenge by designing a series of peroxide compounds, called trioxanes.

"As a class, these compounds have proven to be unusually valuable in sev eral ways, from their brisk and potent antimalarial activity to their lack of resistance and cross-resistance with other antimalarial agents," Shapiro said.

The Johns Hopkins trioxanes mimic artemisinin, the active agent in a Chinese herbal drug used to treat malaria and other fevers for thousands of years. Artemisinin comes from the Artemisia annua plant, an herb also known by a variety of names including sweet wormwood.

Although the substance is inexpensive by Western standards, the widespread use of artemisinins in the developing world remains limited, in part by availability and the cost of separating the active ingredient from the Artemisia annua plant. Posner and his team contend that the potency and curative activity of their compounds provide "a substantially more efficient and economical use of the price-setting natural product."


Related medicine news :

1. Single gene analysis for diagnosis of a range of blood disorders
2. Single drug for bipolar disorder
3. Treating Testicular Cancer With A Single Dose Of Chemotherapy
4. Decreasing Multiple Births By Single Embryo Transfers
5. Single gene skin cancer cause
6. Drug Firms To Produce Single Pill AIDS Treatment
7. Malaria May Gain Resistance To Single Drug Prescriptions
8. Single Women with Baby Cravings Can Actually Cradle their Own, Courtesy NHS
9. Thai Doctors Removed 421 Kidney Stones From A Single Person
10. Single Dose Of Azithromycin Could Cure Trichiasis
11. Effects Of Certain Food Related To Single Pain Receptors
Post Your Comments:

(Date:6/27/2016)... ... June 27, 2016 , ... recently awarded their ... Eyeglasses . , Millions of individuals in the United States and Canada wear eyeglasses. ... way to both correct vision and make a fashion statement. Even celebrities use glasses ...
(Date:6/26/2016)... (PRWEB) , ... June 26, 2016 , ... PawPaws ... a new product that was developed to enhance the health of felines. The formula ... , The two main herbs in the PawPaws Cat Kidney Support Supplement ...
(Date:6/25/2016)... ... 25, 2016 , ... Austin residents seeking Mohs surgery services, can now turn ... to Dr. Russell Peckham for medical and surgical dermatology. , Dr. Dorsey brings specialization ... selective fellowship in Mohs Micrographic Surgery completed by Dr. Dorsey was under the direction ...
(Date:6/25/2016)... Beach, CA (PRWEB) , ... June 25, 2016 , ... ... UCLA with Magna Cum Laude and his M.D from the David Geffen School of ... Diego and returned to Los Angeles to complete his fellowship in hematology/oncology at the ...
(Date:6/24/2016)... ... June 24, 2016 , ... A recent article ... are unfamiliar with. The article goes on to state that individuals are now more ... these less common operations such as calf and cheek reduction. The Los Angeles area ...
Breaking Medicine News(10 mins):
(Date:6/23/2016)... , June 23, 2016 Research ... Devices Global Market - Forecast to 2022" report to ... the treatment method for the patients with kidney failure, it ... excess fluid from the patient,s blood and thus the treatment ... potassium and chloride in balance. Increasing number ...
(Date:6/23/2016)... 2016 Research and Markets has ... by Type (Organic Chemical (Sugar, Petrochemical, Glycerin), Inorganic Chemical), ... Parenteral) - Global Forecast to 2021" report to ... The global pharmaceutical excipients market is projected to reach ... 6.1% in the forecast period 2016 to 2021. ...
(Date:6/23/2016)... Roche (SIX: RO, ROG; OTCQX: RHHBY) announced that it ... (procalcitonin) assay as a dedicated testing solution for people ... Roche is the first IVD company in the U.S ... assessment and management. PCT is a sepsis-specific ... blood can aid clinicians in assessing the risk of ...
Breaking Medicine Technology: