поскольку Белка неугомонная, я стала искать по этой теме и нашла много чего, например вот это.
я не знала раньше об исследованиях в этой области. пошла искать дальше 8)
Journal of the National Cancer Institute, Vol. 91, No. 20, 1765-1772, October 20, 1999
© 1999 Oxford University Press
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REPORTS
Breast-Feeding and Risk of Childhood Acute Leukemia
Xiao Ou Shu, Martha S. Linet, Michael Steinbuch, Wan Qing Wen, Jonathan D. Buckley, Joseph P. Neglia, John D. Potter, Gregory H. Reaman, Leslie L. Robison
Affiliations of authors: X. O. Shu, M. Steinbuch, W. Q. Wen, J. P. Neglia, L. L. Robison, Division of Pediatric Epidemiology and Clinical Research, University of Minnesota, Minneapolis; M. S. Linet, Radiation Epidemiology Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, Bethesda MD; J. D. Buckley, Department of Preventive Medicine, University of Southern California, Los Angeles; J. D. Potter, Cancer Prevention Research Program, Fred Hutchinson Cancer Research Center, Seattle, WA; G. H. Reaman, Department of Pediatric Hematology/Oncology, Children's National Medical Center, Washington, DC.
Correspondence to present address: Xiao Ou Shu, M.D., Ph.D., Department of Pediatrics, University of South Carolina School of Medicine, 15 Medicine Park, Suite 301, Columbia, SC 29203. Address reprint requests to: Xiao Ou Shu, M.D., Ph.D., Children's Cancer Group, P. O. Box 60012, Arcadia, CA 91066-6012.
Present address: M. Steinbuch, Medical Communications Department, Procter and Gamble Pharmaceuticals, Cincinnati, OH.
BACKGROUND: Breast-feeding is well known to have a protective effect against infection in infants. Although the long-term effects of breast-feeding on childhood cancer have not been studied extensively, a protective effect against childhood Hodgkin's disease and lymphoma has been suggested previously from small investigations. In this study, we tested the hypothesis that breast-feeding decreases the risk of childhood acute leukemia. METHODS: A total of 1744 children with acute lymphoblastic leukemia (ALL) and 1879 matched control subjects, aged 1-14 years, and 456 children with acute myeloid leukemia (AML) and 539 matched control subjects, aged 1-17 years, were included in the analysis. Information regarding breast-feeding was obtained through telephone interviews with mothers. All leukemias combined, histologic type of leukemia (ALL versus AML), immunophenotype of ALL (early pre-B cell, pre-B cell, or T cell), and morphology of AML were assessed separately in the data analysis. RESULTS: Ever having breast-fed was found to be associated with a 21% reduction in risk of childhood acute leukemias (odds ratio [OR] for all types combined = 0.79; 95% confidence interval [CI] = 0.70-0.91). A reduction in risk was seen separately for AML (OR = 0.77; 95% CI = 0.57-1.03) and ALL (OR = 0.80; 95% CI = 0.69-0.93). The inverse associations were stronger with longer duration of breast-feeding for total ALL and AML; for M0, M1, and M2 morphologic subtypes of AML; and for early pre-B-cell ALL.
CONCLUSION: In this study, breast-feeding was associated with a reduced risk of childhood acute leukemia. If confirmed in additional epidemiologic studies, our findings suggest that future epidemiologic and experimental efforts should be directed at investigating the anti-infective and/or immune-stimulatory or immune-modulating effects of breast-feeding on leukemogenesis in children.
Тема: ГВ снижает риск рака у детей (Прочитано 1827 раз)