A recent paper (Anti-Plasmodial Polyvalent Interactions in Artemisia annua L. Aqueous Extract - Possible Synergistic and Resistance Mechanisms J J Suberu et al., PLoS ONE, November 2013 8 |11) opens the way for new antimalarial therapies. It provides answers to several questions which had not been addressed properly in the scientific literature. The paper studied the additive, synergistic or antagonistic effect of several constituants of Artemisia annua. It confirms clearly that the aqueous extract of Artemisia annua is three times as potent as pure artemisinin.
Sumitomo Chemical, Olyset Net maker, was accused of bribery.
The article “Cambodia investigates Sumitomo Chemical subsidiary in bribery case” was found in the Asahi .
Is this just the tip of iceberg?
On 6 November 2013, WHO/ PAHO honoured initiatives from three malaria-endemic countries with the ‘Malaria Champions of the Americas Awards’. The Malaria Champions of the Americas awards were given to Colombia (Colombia Malaria Project), the Dominican Republic (National Center for Control of Tropical Diseases), and Brazil (Secretariat of Health of the State of Acre). The Malaria Champions of the Americas was launched in 2008 to identify, celebrate and inspire excellence in efforts to fight the disease.
It is often asserted that there are two malaria vector interventions in widespread use: long-lasting insecticide treated bednets (LLIN) and indoor residual insecticide spraying (IRS). Are either of these vector interventions? I’ll argue that the answer is, “No!” What does this mean for the development of new methods?
Scientific Organizers: Pedro L. Alonso, Chetan E. Chitnis and Lee Hall
MalariaWorld is looking for authors to write columns about malaria - in the broadest sense. What we all read in scientific articles on malaria is only the tip of the iceberg when it gets to the world of malaria. Our malaria world is shaped by funding agencies, meeting outcomes, opinionated individuals and politics, but also you.
MalariaWorld as of today has 8102 registered members. We continuously check the validity of your email address to make sure that we remain connected with you, so you and 8101 other subscribers receive the MalariaWorld newsletter every single week of the year. This November we celebrated our fourth year of providing services to you. This was also a time to once more review our progress, including the progress we are making with the MalariaWorld Journal. The journal is now in its 4th volume and it is maturing, but we identified some real difficulties, one of which I want to bring to your attention here: manuscript reviewing...
The plasmodium parasite needs cholesterol for survival and multiplication. The replicative capacity of plasmodium liver forms is remarkable, achieving the fastest growth rates known.
We are very excited to be connecting with you through MalariaWorld. The Malaria Eradication Scientific Alliance – MESA - will feature the ever growing evidence base in malaria elimination, from science, to lessons learned, and policy.
In commemoration of Malaria Day in the Americas 2013
The Pan American Health Organization,
The Pan American Health and Education Foundation, and
The Center for Global Health at The George Washington University
Cordially invite you to attend the
Malaria in the Americas Forum 2013:
Haemolytic, hepatotoxic, cytotoxic, neurotoxic, cardiotoxic, genotoxic, ototoxic, embryotoxic, spleenotoxic, hemolytic, atherosclerosis, immunodepressive effects of chemical artemisinine derivatives (ACTs) at high doses.
Some recent research, mostly in relation with the resistance to ACT pills and/or artesunate injections, has highlighted serious secundary health effects at the doses prescribed by WHO.
Date: February 2-7, 2014
Location: Mérida, Yucatán, México
Scientific Organizers: Pedro L. Alonso, Chetan E. Chitnis and Lee Hall
Organized in collaboration with MESA – Malaria Eradication Scientific Alliance
Part of the Keystone Symposia Global Health Series, travel awards supported by the Bill & Melinda Gates Foundation. Click for the Program and more information .
Dr. Linda Veronica Venczel of Seattle has been appointed BIO Ventures for Global Healths new Director of Program and Partnership Management. Most recently Dr. Venczel was Senior Program Officer, Global Development at the Bill & Melinda Gates Foundation, Deputy Branch Chief for Polio Eradication at the Centers for Disease Control and Prevention in Atlanta, and International Advisor on Vaccines and Immunization for Bolivia at the Pan American Health Organization in Washington DC.
With the community, MESA monitors progress and takes the next steps to advance the science of malaria eradication. MESA reviews existing evidence and supports projects on research questions critical to malaria eradication. For more information, please visit www.mesamalaria.org.
Read MESA's latest posts here.
I am pleased to send you this brief summary of our most recent and interesting African Malaria Dialogue, held during a luncheon meeting on Wednesday 9 October at the Harvard School of Public Health in Boston.
On 9 October, another of our quarterly African Malaria Dialogues will be held, this time at the Harvard School of Public Health in Boston by invitation of Marcia C. de Castro. She will present a brief summary about a successful larviciding program in Dar es Salaam. doi: 10.1371/journal.pone.0005107
Dear Partners in Vector Control,
We are pleased to update you on the status of the newly-established Pan-African Mosquito Control Association. Comprised of vector control and research professionals from Africa and beyond, our membership base has been growing rapidly as we combine efforts towards an Africa free of mosquito-borne diseases.
We invite you to:
It is not very often that we see a talk exclusively on malaria at a global TED event. And now there is a new one. Anyone that has an interest in malaria by now should have heard about Sonia Shah. She wrote the excellent book 'The Fever' in 2010, a book that received praise around the world. Shah has now condensed the book in a 15 minute talk. She does so in a simple yet authorative manner that is clear even to someone that has never heard about malaria.
Basically she describes three reasons why it is so hard to tackle malaria in its heartland: Africa. First, the complexity of the disease and the challenges we continue to face to either combat the parasite or its vector make it a tough disease to conquer. True. Parasite resistance to drugs, vector resistance to insecticides, the difficulty of making a potent vaccine, it all adds up to what may seem an impossible task. Second, she talks about economics, the costs involved and the lack of the myriad of resources needed (health facilities, trained staff, control personnel and so on) to do a thorough job. Again true. And third she talks about indifference and the fact that malaria is as engrained in developing country nations as a simple cold or flu in the North. Hmmm, food for thought.
Artemisia ketone is the major constituent of essential oil of many artemisia plants, often up to 60 %. A lot of research work has been devoted to other constituents like artemisinin, scopoletine, limonene, eucalyptol, borneol, luteolin, eupatin, casticin, but artemisia ketone is completely absent in the scientific literature. The molecule had been discovered in Artemisia annua in 1938 ( WA Jacobs et al., Annual Review of Biochemistry 7,1-193) but then fell into oblivion.
I am a civil engineer with experience in drainage and flood control. Drainage and flood control infrastructure can be an important part of integrated pest management as a means for larval source management.
Unfortunately, the related drainage infrastructure for a diked area typically has a number of drawbacks: 1) during dry periods, the drainage system for the low-lying land protected by the dike will inevitably include areas of stagnant water; 2) the lowered water table will cause the land to subside - which will make gravity drainage more difficult and produce more stagnant water; and 3) wetland environments will be severely degraded, harming flora and fauna.
Diked areas adjacent to tidally-influence watercourses can use tidal water level variations to significantly reduce stagnant water in the drainage system; reduce subsidence; and enhance wetlands.
Click on Read More for a paper I wrote which was published the August edition of Outlooks on Pest Management.
For a copy of the entire article in pdf format including photos, please contact me via e-mail at email@example.com.
The film below was submitted to MalariaWorld by Dr. Pierre Lutgen.
On several occasions Patrick Ogwang from Uganda and Pierre Lutgen from Luxemburg have informed us on encouraging developments with herbal medicine in Africa, more particularly Artemisia annua. The film shows the program of the Makerere University sponsored by the Ministry of Health of Uganda.
Since my blog on MalariaWorld about Intellectual Ventures' invention to shoot down mosquitoes with laser beams, back in 2010, it has been very quiet. We have not seen any progress with this approach, but this week the TED talk by Nathan Myhrvold features in the Huffington Post (as part of their TEDWeekends section). I was invited to submit a blog in response to this renewed attention for this approach which I titled: Drones that combat malaria.
What do you think? Still a worthy goal or an idea that should be burried?
I am intrigued by the role that consumption of electricity has had in suppressing malaria throughout the world, so I took a quick look at the figures for Africa, to compare.
Recent results obtained at the AlQuds University in partnership with IFBV-BELHERB from Luxembourg show that freshly prepared infusion of Artemisia annua is stronger than chloroquine in the inhibition of beta-hematin (hemozoin) formation. In the infected erythrocyte the malaria parasite generates large quantities of toxic heme which it has to render innocuous by polymerizing it into hemozoin. The mechanism of quinine and all its derivates, chloroquine, amodiaquine operates by inhibiting this hemozoin crystallization.
I was asked by a friend, who is not a malaria scientist (in fact, not a scientist at all) to imagine the following situation:
You were chosen by a malaria endemic country to direct their fight against the disease. The government of the country tells you they will adopt three strategies to fight it, solely based on your recommendations. What would those be?
My name is Mercè and I'm from Barcelona, Spain.
I'm a veterinarian with a tropical medicine master's degree and I work mostly on malaria diagnosis.
Over the past years I have been working in Africa, training laboratory technicians in diagnosis of tropical diseases, especially malaria.
I have also worked with health ministries in the implementation of quality control programs and monitoring of malaria diagnosis.
I have been working as a consultant with various organizations and I am currently looking for work.