Cancer Survivors at Greater Risk for Osteoporosis; Learning of Problem Earlier May Lessen Complications Later in Life
Apr 27, 2001, 01:00 ET from St. Jude Children's Research Hospital
MEMPHIS, Tenn., April 27 /PRNewswire/ -- Survivors of childhood acute lymphoblastic leukemia (ALL) are at a greater risk for developing osteoporosis, or reduced bone density, according research from St. Jude Children's Research Hospital(R). The findings will be published in the May 1 issue of "Leukemia." The team, lead by Sue Kaste, D.O., found that 68 percent of the study group had a bone mineral density (BMD) below the median age and general population controls, and 14 percent of those patients fit the standardized criteria for osteoporosis. The median age of the study participants was in the early to mid-20s. Osteoporosis is generally found in women of menopausal age. Depending on the extent of bone loss, osteoporosis may be accompanied by pain, fracture or loss of height. This study shows equivalent bone loss in women and men some 30 years earlier than what is normally expected with osteoporosis patients. Since ALL is the most common form of childhood cancer, and since its survivability rate is reaching 80 percent, Kaste and her team are concerned for the long-term implications for this subset of the population. "When we consider the tremendous numbers of childhood cancer survivors that are growing yearly because of the success in treatments, bone density loss of this magnitude becomes significant," Kaste said. "It's not only a personal problem for the individual patient and his or her family, but through sheer numbers, it has the potential to become a tremendous public health issue." Survivors of childhood ALL who suffer bone loss in their 20s or younger face potentially more severe and debilitating injuries as they age. Consequently, in addition to identifying the problem, Kaste and her team have created studies to evaluate the use of vitamin and mineral supplements given to survivors of childhood ALL after completing treatment. Participants in these studies also receive dietary counseling and educational brochures outlining lifestyle practices to optimize bone mineralization. "There is a lot to be said for what our grandmothers taught us about drinking three glasses of milk each day," Kaste said. "We figure that 70 percent of the general adolescent population doesn't get the minimum daily requirement of calcium. Take that factor and compound it on childhood survivors who have received multiple drugs, possibly cranial irradiation and altered nutrition during therapy because they don't feel well, and you have a problem." The researchers determined that the effective drug combination used to treat childhood ALL at St. Jude (prednisone, vincristine, daunorubicin, L-asparginase, etoposide and cytarabine), combined with higher doses of cranial irradiation lead to increased bone loss. Patients receiving between lower doses of radiation demonstrated no less bone loss than patients not receiving cranial irradiation at all. This finding leads researchers to believe that irradiation of the pituitary gland and hypothalamus, the areas responsible for growth and maturity, are adversely affected. Children diagnosed with brain tumors may suffer the same problems, but this study focused only on survivors of childhood ALL. St. Jude scientists are developing a similar study for brain tumor patients. St. Jude Children's Research Hospital, in Memphis, Tenn., was founded by the late entertainer Danny Thomas. The hospital is an internationally recognized biomedical research center dedicated to finding cures for catastrophic diseases of childhood. The hospital's work is supported through funds raised by the American Lebanese Syrian Associated Charities(R) (ALSAC(R)). All St. Jude patients are treated regardless of their family's ability to pay. ALSAC covers all costs of treatment beyond those reimbursed by third party insurers, and total costs for families who have no insurance. MAKE YOUR OPINION COUNT - Click Here http://tbutton.prnewswire.com/prn/11690X84398160
SOURCE St. Jude Children's Research Hospital
MEMPHIS, Tenn., April 27 /PRNewswire/ -- Survivors of childhood acute lymphoblastic leukemia (ALL) are at a greater risk for developing osteoporosis, or reduced bone density, according research from St. Jude Children's Research Hospital(R). The findings will be published in the May 1 issue of "Leukemia." The team, lead by Sue Kaste, D.O., found that 68 percent of the study group had a bone mineral density (BMD) below the median age and general population controls, and 14 percent of those patients fit the standardized criteria for osteoporosis. The median age of the study participants was in the early to mid-20s. Osteoporosis is generally found in women of menopausal age. Depending on the extent of bone loss, osteoporosis may be accompanied by pain, fracture or loss of height. This study shows equivalent bone loss in women and men some 30 years earlier than what is normally expected with osteoporosis patients. Since ALL is the most common form of childhood cancer, and since its survivability rate is reaching 80 percent, Kaste and her team are concerned for the long-term implications for this subset of the population. "When we consider the tremendous numbers of childhood cancer survivors that are growing yearly because of the success in treatments, bone density loss of this magnitude becomes significant," Kaste said. "It's not only a personal problem for the individual patient and his or her family, but through sheer numbers, it has the potential to become a tremendous public health issue." Survivors of childhood ALL who suffer bone loss in their 20s or younger face potentially more severe and debilitating injuries as they age. Consequently, in addition to identifying the problem, Kaste and her team have created studies to evaluate the use of vitamin and mineral supplements given to survivors of childhood ALL after completing treatment. Participants in these studies also receive dietary counseling and educational brochures outlining lifestyle practices to optimize bone mineralization. "There is a lot to be said for what our grandmothers taught us about drinking three glasses of milk each day," Kaste said. "We figure that 70 percent of the general adolescent population doesn't get the minimum daily requirement of calcium. Take that factor and compound it on childhood survivors who have received multiple drugs, possibly cranial irradiation and altered nutrition during therapy because they don't feel well, and you have a problem." The researchers determined that the effective drug combination used to treat childhood ALL at St. Jude (prednisone, vincristine, daunorubicin, L-asparginase, etoposide and cytarabine), combined with higher doses of cranial irradiation lead to increased bone loss. Patients receiving between lower doses of radiation demonstrated no less bone loss than patients not receiving cranial irradiation at all. This finding leads researchers to believe that irradiation of the pituitary gland and hypothalamus, the areas responsible for growth and maturity, are adversely affected. Children diagnosed with brain tumors may suffer the same problems, but this study focused only on survivors of childhood ALL. St. Jude scientists are developing a similar study for brain tumor patients. St. Jude Children's Research Hospital, in Memphis, Tenn., was founded by the late entertainer Danny Thomas. The hospital is an internationally recognized biomedical research center dedicated to finding cures for catastrophic diseases of childhood. The hospital's work is supported through funds raised by the American Lebanese Syrian Associated Charities(R) (ALSAC(R)). All St. Jude patients are treated regardless of their family's ability to pay. ALSAC covers all costs of treatment beyond those reimbursed by third party insurers, and total costs for families who have no insurance. MAKE YOUR OPINION COUNT - Click Here http://tbutton.prnewswire.com/prn/11690X84398160 SOURCE St. Jude Children's Research Hospital
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