โรคที่มีเม็ดเลือดขาวต่ำ (Leucopenia) การฟื้นฟูเม็ดเลือดขาว และ โรคที่เกี่ยวกับไขกระดูก (Bone Marrow)

Leucopenia: Vetvicka V, Volny T, et al: “Glucan and resveratrol complex — possible synergistic effects on immune system.”  U of Louisville, Dept of Pathology, Biomed Pad Mde Fac, Czech Republic 15(1)41-6; Jun 2007. Quote: “…both glucan and resveratrol complex stimulated phagocytosis of blood leukocytes, caused increase in surface expression of CD(+) splenocytes and showed higher restoration of spleen recovery after experimentally induced leucopenia [low white cell count]. In all these cases, strong synergetic effects were observed. “

Lymphopenia & Neutropenia:  Sima P, et al, “Effects of glucan on bone marrow.” Ann Transl Med. 2014 Feb; 2(2)18. PMC 4202472; Quote:“The extensive research studying various effects of glucans on bone marrow showed significant restoration of both lymphopenia and neutropenia. … glucan might be widely used as radioprotectant that could mitigate the biological effects of radiation exposure both in cases of radiation accidents or in medically used irradiation.”

White Blood Cell – Recovery: Pachen ML, MacVittie TJ, “Comparative effects of soluble and particulate glucans on survival in irradiated mice,” J Biol Response Mod 5(1):45-60.  Experimental Hematology Dept, Armed Forces Radiobiology Research Inst, Bethesda, MD. Feb 1986. Quote: “Both glucan-P and glucan-F enhanced the recovery of peripheral blood white cell numbers, platelet numbers, and hematocrit values.  In addition, both agents increased endogenous pluripotent hemopoietic stem cell numbers in sublethally irradiated mice.”

Bone Marrow – Lymphopenia & Neutropenia:  Sima P, Vetvicka V, et al, “Effects of glucan on bone marrow.” Ann Transl Med. Feb; 2(2)18. PMC 4202472; 2014.  Quote: “The extensive research studying various effects of glucans on bone marrow showed significant restoration of both lymphopenia and neutropenia. … glucan might be widely used as radioprotectant that could mitigate the biological effects of radiation exposure both in cases of radiation accidents or in medically used irradiation. …they [beta glucans] are inexpensive, generally free from side effects and capable of significant protection against bone marrow damage through restoration of bone marrow cell production. “

Bone Marrow Damage: Vetvicka V; “Glucan-immunostimulant, adjuvant, potential drug,” World J Clin Oncol, 2(2):115-119 Feb 10 2010. Quote: “The significant role of glucans in cancer treatment, infection immunity, stress reduction and restoration of damaged bone marrow has already been established.”

Bone Marrow Injury: Daniel E Cramer, Daniel J Allendorf, Jarek T Baran, Richard Hansen, Jose Marroquin, Bing Li, Janina Ratajczak, Mariusz Z Ratajczak, and Jun YanBeta-glucan enhances complement-mediated hematopoietic recovery after bone marrow injury;” Blood; DOI 10.1182. Tumor Immunobiology Program and Stem Cell Biology Program, James Graham Brown Cancer Center, University of Louisville, Louisville, KY, USA. Sept 2005. Quote: “…Myelotoxic injury in the bone marrow (BM) as a consequence of total body irradiation (TBI) or granulocyte colony stimulating factor (G-CSF) mobilization results in the deposition of iC3b on BM [bone marrow] stroma [cell framework]. … Taken together, these observations suggest a novel role for C, CR3, and Beta glucan in the restoration of hematopoiesis [cell formation] following injury.”

NOTE: Mice were treated for 12 days with beta glucan and exposed to a sublethal dose of radiation. The beta glucan treated animals had approximately 40 percent more cell formation units in the spleen than untreated mice. When beta glucan was given orally, survival of animals receiving a lethal dose of radiation after stem cell transplantation was significantly enhanced. Forty days following radiation exposure, approximately 30 percent of mice treated with beta glucan survived compared with only 3 percent of untreated animals. Researchers discovered beta-glucan enhances the proliferation of stem cells, promoting white blood cell recovery in bone marrow injury and repair.

Bone Marrow: Hong F, Yan J, Baran JT, Allendorf DJ, Hansen RD, Ostroff G, Ross G, “Mechanism by Which Orally Administered B-1,3-Glucans Enhance the Tumoricidal Activity of Antitumor Monoclonal Antibodies in Murine Tumor Models,” The J of Immunology 173:797-806. James Graham Brown Cancer Ctr, Louisville, KY; July 15, 2004: Quote: “Orally administered B-1,3-glucans were taken up by macrophages that transported them to spleen, lymph nodes, and bone marrow. Within the bone marrow, the macrophages degraded the large B-1,3 glucans into smaller soluble B-1,3-glucan fragments that were taken up by the CR3 [receptors] of marginated granulocytes [white blood cells formed in the bone marrow]. These granulocytes with CR3-bound B-1,3-glucan-fluorescein were shown to kill iC3b-opsonized tumor cells following their recruitment to a site of complement activation resembling a tumor coated with mAB [monoclonal antibodies].”

Bone Marrow: Browder IW., Williams D., Pretus H., et al; Beneficial Effect of Enhanced Macrophage Function in the Trauma Patients. Ann. Surg.;  Vol 211: 605-613. Dept of Surg and Physiol, Tulane U Sch of Med, LA and Istituto Di Chirurgia D’Urgenza, U of Torino, Torino, Italy.* 1990. Quote:“Use of glucan in a murine model of hind-limb crush injury decreased macrophage PGE2 release while stimulating bone marrow proliferation. “


 

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