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Gonadal, adrenal, androgen and thyroid functions in adults treated for acute lymphoblastic leukemia
Background And Methods:
The limited and controversial data available regarding endocrine function in adults treated for acute lymphoblastic leukemia (ALL) prompted us to study the influence of chemotherapy on gonadal, adrenal androgen and thyroid function. Forty-eight ALL adults (30 men and 18 women) in first complete remission (CR) were investigated.
Results:
Severe reproductive function impairment was detected in 10/12 males receiving treatment, while endocrine function was affected in only 1 case. All but one off-therapy male showed normal reproductive function; moreover, endocrine function was impaired in only one male. Eight of 10 females receiving treatment showed hypergonadotropinemia and decreased estrogen levels. All off-therapy women reported regular menses, even though mild hypergonadotropinemia persisted in only 2 cases. Adrenal androgen function was depressed in 12/22 on-therapy patients in both sexes, and in 6/17 off-therapy males. All off-therapy females recovered completely. Dihydroepiandrosterone-sulfate (DHEA-S) serum levels were significantly correlated to the length of time-off therapy (p = 0.003), and inversely correlated to the age at diagnosis (p < 0.0001) in off-therapy males. All patients remained euthyroid, although 4 patients showed subclinical impairment of thyroid function.
Conclusions:
Our experience suggests that long-term prospective studies for ALL adults are necessary in order to better define the magnitude and duration of influence the chemotherapy has on endocrine function.