Italian Scientists discover that the papaya leaf has anti-malarial effect after seven days in the lab

Plasmodium is a genus of Apicomplexan parasites. Infection by these organisms is known as malaria.
(Wikipedia)

Article:
Pietretti, A; Karioti, A; Sannella, A; Orsini, S; Scalone, A; Gradoni, L; Messori, L; Severini, C; Bilia, A:
Antiplasmodial in vivo activity of Carica papaya leaf decoction
Planta Medica; Issue 12, 2010

…”By analyzing the reduction of parasitemia, it was found that the papaya extracts at the two higher doses tested had low plasmodicidal activity until the seventh day but the plasmodicidal activity became markedly positive in the following days. In particular, in the D10 the reduction of parasitemia was 76.7% in the papaya 500 group and 100% in the papaya 750 group; the reduction of parasitemia by D13 was 100% for both doses. These preliminary results obtained so far in our laboratory are definitely encouraging and suggest us to plan a new series of experiments to provide further evidences and eventually confirm the antiplasmodial activity of Carica papaya leaf extracts.”

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American Cancer Society Promotes Phytochemicals in Papaya Leaf as Prevention and Treatment of Cancer

The papaya leaf boasts a set of Phytochemicals that is recommended by the American Cancer Society as a treatment and preventative of cancer.

“Phytochemicals are promoted for the prevention and treatment of many health conditions, including cancer, heart disease, diabetes, and high blood pressure. There is some evidence that certain phytochemicals may help prevent the formation of potential carcinogens (substances that cause cancer), block the action of carcinogens on their target organs or tissue, or act on cells to suppress cancer development. Many experts suggest that people can reduce their risk of cancer significantly by eating more fruits, vegetables, and other foods from plants that contain phytochemicals…”

http://m.cancer.org/treatment/treatmentsandsideeffects/complementaryandalternativemedicine/herbsvitaminsandminerals/phytochemicals