This is not a new pilot study. But this is one that is worthy for promotion because cancer patients suffer from low white cell count. Papaya leaf is used as complementary treatment for cancers, and one reason is that it has shown to raise white cell count.
From http://www.breastcancer.org, the following treatments may lower your white cell count:
“Breast cancer treatments that can lower your white blood cell count:
Abraxane (chemical name: albumin-bound or nab-paclitaxel)
Adriamycin (chemical name: doxorubicin)
carboplatin (brand name: Paraplatin)
Cytoxan (chemical name: cyclophosphamide)
Doxil (chemical name: doxorubicin)
Ellence (chemical name: epirubicin)
fluorouracil (also called 5-fluorouracil or 5-FU; brand name: Adrucil)
Gemzar (chemical name: gemcitabine)
Halaven (chemical name: eribulin)
Mitomycin (chemical name: mutamycin)
mitoxantrone (brand name: Novantrone)
Navelbine (chemical name: vinorelbine)
Taxol (chemical name: paclitaxel)
Taxotere (chemical name: docetaxel)
thiotepa (brand name: Thioplex)
Avastin (chemical name: bevacizumab)
Herceptin (chemical name: trastuzumab)
Perjeta (chemical name: pertuzumab)
Tykerb (chemical name: lapatanib)”
Also the painful epidemic of chikungunya and Dengue Fever cause white cell count to be compromised.
The following pilot study shows that papaya leaf juice increased the white cell count of test subjects:
Salutary effects of carica papaya leaf extract in dengue fever patients – a pilot study
Sri Lankan Family Physician, 2008, 29, 17-19
“From the [above] results it was evident that both the platelet counts and the total white cell counts had increased in all patients within 24 hours after administering papaya leaf juice. It is known that the platelet count drops in dengue patients after the first three days of fever and the gradually increases after the 7th day or drop further with derangement of other clotting factors to develop into dengue hemorrhagic state3. It was significant to observe that the platelet count increased in all 12 patients with two doses of papaya leaf juice and all patients recovered with no hospital admission….
This pilot study has shown the effects of papaya leaf juice in dengue patients of elevating the total white cell counts, platelet counts and recovery without hospital admission.
An adequate sample after obtaining ethical approval and advice from a statistician, doing clotting profiles before and after papaya intervention and using a control group would provide an answer to the question is papaya leaf extract effective in elevating the platelet count and clotting factors which are compromised in dengue fever.”
Dr S. Hettige