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A cure for a deadly disease is usually associated with an innovative technology, billions of dollars of research, and hundreds of hours of modern pharmaceutical studies. However, one of the most successful treatments for malaria was developed from an old Chinese medical book. The creation of this medicine is one of those inspiring stories involving not only innovative scientific discoveries but also the tremendous effort of many researchers involved in the project and an opportunity to explore and improve traditional knowledge with modern science.

Malaria was one of the deadliest diseases of the 20th century that caused thousands of human deaths every year. Its high prevalence in Asia, Africa, and Latin America, its devastating impact on human health, and the parasite’s developing resistance to already existing drugs made finding an alternative treatment a global priority. Moreover, the Vietnam War, during which soldiers suffered tremendously from malaria, added a push for researchers to find a cure for this disease. Thus, on 23 May 1967, the secret Chinese military project 523 was initiated to find an effective treatment for malaria.

More than 500 researchers from more than 60 institutes of the Chinese Academy participated in this program, which aimed to gather and analyse all available data on anti-malarial substances and treatment methods. This project included various specialists since the problem of malaria is complex and requires a multidisciplinary approach. Tu Youyou, one of the central figures in the development of a new treatment, was among those scientists who contributed to the project’s work. Unlike many of her colleagues, Tu did not have a PhD in pharmacology or medicine. However, she had profound theoretical knowledge in pharmaceutical sciences and considerable practical experience in traditional Chinese medicine.

The main assumption that led to the discovery of a new treatment was that China’s traditional medical knowledge could hide valuable information about potential herbal cures for malaria. The problem was that the majority of researchers who worked on Project 523 were not familiar with traditional Chinese medicine. Thus, Tu Youyou and her colleagues spent months analysing tens of thousands of ancient medical manuscripts and double-checking all potential pieces of information on herbal medicine. Finally, they managed to shortlist dozens of promising plants and their extracts that could be effective against Plasmodium parasites.

The main discovery in the fight against malaria was made by Tu Youyou in Zhouhou Beiji Fang, an ancient Chinese medical paper written in the fourth century AD. The manuscript described the application of sweet wormwood (Artemisia annua) herb for reducing the symptoms of intermittent fever. However, previous studies that tried to isolate the active substance from the sweet wormwood failed to achieve the desired outcome. It was also unclear what exactly caused the fever reduction in patients treated with sweet wormwood decoction. The main hypothesis that Tu Youyou developed was that heat might affect the activity of certain active substances of the plant.

Thus, an attempt to separate the active ingredient from the sweet wormwood by boiling the leaves of this plant failed. However, Tu Youyou and her colleagues suggested that it might not be the right method to extract artemisinin. Therefore, they decided to use the cold ether method in hopes of saving the active ingredient. The experiment was successful, and the resulting extract demonstrated a powerful anti-malarial effect. The new wonder drug was able to significantly reduce the number of Plasmodium parasites in the patients.

Today, artemisinin is considered one of the most valuable pharmaceutical substances because not only is it highly efficient against Plasmodium parasites, but it also allows developing affordable and easy-to-administer combination therapies for malaria. According to the World Health Organisation, artemisinin-based combination therapies remain the most potent weapon in the fight against malaria. They are especially important in the case of Plasmodium falciparum malaria, which is the most dangerous form of the disease. Moreover, the WHO states that artemisinin’s contribution has significantly reduced the number of malaria mortality cases around the world.

It is also worth mentioning the incredible effort of researchers involved in the development of artemisinin. The creation of this drug was urgent, as the whole project was conducted under the pressure of time. According to Tu Youyou, “When the laboratory study demonstrated that the extract of the drug was clinically safe, many of my colleagues and I volunteered to be the first subjects to trial this new drug.” Thus, the scientists went through a lot to make sure that the new wonder drug was safe.

However, the success of the researcher and the invention itself was not rewarded at that time. In 2015, Tu Youyou received the Nobel Prize in Medicine for her contribution to the fight against malaria, specifically for her role in the discovery of the new anti-malarial medication derived from sweet wormwood. Tu Youyou was the first Chinese Nobel Prize winner in the Medical field since the Nobel Prizes were initiated. This award became not only a symbol of recognition of Tu Youyou’s efforts in the fight against a deadly disease but also caused debates among the scientific community.

On the one hand, the debate around the Nobel Prize demonstrates the problem of minority recognition of scientists’ contributions. More specifically, although Project 523 brought the anti-malarial drug to the world, many researchers who participated in Project 523 and played a vital role in the development of this treatment did not get enough credit for their contributions. On the other hand, the debate also demonstrates that Project 523 was truly a multidisciplinary and multifaceted research project. Thus, Tu Youyou’s role in the discovery of artemisinin was not more crucial than the role of her colleagues. However, at the same time, her decision to revisit ancient medical literature and take advantage of traditional healing methods helped the team get one step closer to finding an effective therapy to treat malaria.

Finally, although Tu Youyou was not the only scientist involved in this research, her contributions made the crucial difference between failure and the new effective treatment. First of all, she drew the attention of Chinese scientists to the possibility of using traditional methods and materials to combat the deadly disease. Secondly, she was highly motivated and determined to fight against malaria even though she did not have a solid academic background in pharmacology or medicine. Finally, her decision to go through the long and difficult process of research helped the scientific world get to a safe and effective treatment.

In conclusion, the discovery of the artemisinin-based treatment is the story of inspiration, hard work, and determination. The scientists at Project 523 worked under highly stressful conditions to develop an effective weapon against one of the deadliest microbes known to humanity.

Today, this method saves countless lives and helps fight a dangerous disease. In fact, the creation of this pharmaceutical substance is one of those breakthroughs in the history of humanity that demonstrates that new inventions can come from both old things (in this case, traditional medicine) and hard work. The story of this discovery is also inspiring because sometimes the way towards new opportunities and knowledge is not a straight line but a long way full of doubts and questions. In the case of artemisinin, researchers were faced with many failures and difficulties on their way to the new treatment. However, they did not give up and eventually got an effective method to combat malaria. This is why the story behind the artemisinin treatment is a story of inspiration that shows the importance of both doubting already existing things and believing in the possibility of finding something new.

References:

  1. https://pmc.ncbi.nlm.nih.gov/articles/PMC4966551/
  2. https://www.nobelprize.org/prizes/medicine/2015/tu/facts/
  3. https://www.who.int/news-room/fact-sheets/detail/malaria
  4. https://www.britannica.com/science/artemisinin

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