Abstract：【Objective】 To investigate the influencing factors of decreased bone mineral density (BMD) in elderly patients with prostate cancer during androgen blockade therapy. 【Methods】 The clinical data of 105 elderly prostate cancer patients admitted to our hospital from April 2016 to May 2018 were retrospectively analyzed. All patients were treated with androgen blockade combined with radiotherapy. The incidence of bone mineral density reduction during androgen blockade treatment in elderly prostate cancer patients was statistically analyzed. According to whether the bone mineral density decreased during treatment,the patients were divided into reduced bone mineral density group and non reduced bone mineral density group. The clinical data of the two groups of patients were statistically analyzed. Logistic regression analysis was used to explore the influencing factors of bone mineral density reduction in elderly prostate cancer patients during androgen blockade therapy. Kaplan-Meier method was used to draw survival curves,and log rank test was used to analyze the difference in the biochemical failure curve between the reduced bone mineral density group and the non reduced bone mineral density group.【Results】 Among 105 elderly patients with prostate cancer,22 patients (20.95%) had decreased bone density during androgen blockade therapy (BMD reduction group); The remaining 83 patients did not have a decrease in bone density (non reduced bone density group),accounting for 79.05%. The GS score,body mass index (BMI),serum prostate specific antigen (PSA),high tumor necrosis factor-α(TNF-α) and interleukin-1 (IL-1) levels in the decreased bone density group were higher than those in the non decreased bone density group (P<0.05),while the serum testosterone (T),osteoprotegerin (OPG) levels were lower than those in the non decreased bone density group (P<0.05); Logistic multivariate analysis showed that BMI,PSA,T,and OPG were all influential factors for bone mineral density reduction in elderly prostate cancer patients during androgen blockade therapy (P<0.05). During a 2-year follow-up,1 case was lost in the low bone density group and 2 cases in the non low bone density group. The median follow-up time was 12 months (1-24 months). The 2-year biochemical failure free rate in the reduced bone density group was 80.95%,while the 2-year biochemical failure free rate in the non reduced bone density group was 82.72%. There was no statistically significant difference in the biochemical failure curve between the two groups(χ2=0.003,P=0.955). 【Conclusion】 BMI,PSA,T,and OPG are all factors that affect the decrease of bone mineral density in elderly prostate cancer patients during androgen therapy,and the decrease of bone mineral density during treatment is not associated with long-term biochemical failure in elderly prostate cancer patients.
李志清, 胡明. 老年前列腺癌患者雄性激素阻断治疗期间骨密度降低的影响因素分析[J]. 医学临床研究, 2023, 40(3): 385-388.
LI Zhi-qing, HU Ming. Analysis of the Influencing Factors of Bone Mineral Density Decrease during Androgen Blockade Therapy in Elderly Patients with Prostate Cancer. JOURNAL OF CLINICAL RESEARCH, 2023, 40(3): 385-388.
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2023, Vol. 40 
