[en] Short communications only

[en] The dried jujube and day lily packed with plastic film were irradiated with ~(60)Co gamma rays, and the adequate dosage was 1 kGy. The insects in the jujube and day lily, such as Lepidoptera and Elytrum were effectively killed by irradiation. After one-year preservation, more than 90% of the irradiated jujube and day lily are still all right. The main nutrients of the irradiated jujube and day lily, such as sugar, amino acid, vitamins and inorganic salts, did not change evidently. The irradiated jujube and day lily appear to be harmless for human consumption, because of the low dosage of irradiation

[en] The characteristics of cobalt 60 gamma radiation crosslinking, and a comparison between electron beam radiation crosslinking and gamma radiation crosslinking are described in this paper. The technical process and equipment used to produce gamma radiation crosslinked polyethylene heat-shrinkable material is described. The properties of the material are discussed. (author)

No abstract available

[en] Poster presentation

[en] Objective: To approach the correlation between the bone density measured by quantitative CT and the blood sugar level of the aged patients with non-insulin-dependent diabetes mellitus, and observe the effects of the blood sugar level on the bone density. Methods: The lumbar bone densities and the blood sugar levels of 160 aged patients with non-insulin-dependent diabetes mellitus (hyperglycemia group 80 cases, euglycemia group 80 cases ) and the healthy aged people (80 cases) were detected by quantitative CT and serum biochemical detection; the correlation between the blood sugar level and the bone density and the osteoporosis occurrence status of aged people in various groups were analyzed. Results: The bone density in the non-insulin-dependent diabetes and hyperglycemia group was lower than those in normal (control) group and non-insulin-dependent diabetes and euglycemia group (P<0.05); the morbility of osteoporosis in the non-insulin-dependent diabetes and hyperglycemia group was higher than those in normal (control) group and non-insulin-dependent diabetes and euglycemia group (P<0.05); negative correlation was found between the bone density and the blood sugar level (aged male group: r=-0.7382, P=0.0013; aged female group: r=-0.8343, P=0.0007). Conclusion: The blood sugar level affects the bone density of the aged patients with non-insulin-dependent diabetes mellitus; the higher the blood sugar level, the lower the bone density. The non-insulin-dependent diabetes aged patients with hyperglycemia have the liability of osteoporosis. (authors)

[en] Objective: To explore the changes of bone mineral density (BMD) in normal men and to look for the scientific basis for prevention and management of osteoporosis (OP). Methods: BMD of lumbar vertebrae (LV) in men aged 20-80 was measured by quantitative CT. The subjects were divided into 6 age groups (a decade in one group). Results: The highest value of BMD of lumbar vertebrae L_2-4 and neck was seen in 20-29-year-old group. And it would decrease with the increasing of age over 40. The rate of accumulative loss (RAL) of BMD at different sites accelerated with the increasing of age. RAL of BMD of necks femur was higher than that of lumbar vertebrae. The detecting rate of OP in neck femur was considerably higher than that in lumbar vertebrae. The overall correlation coefficient of lumbar vertebrae L_2-4 and neck femur r = 0.66. Conclusion: The BMD of lumbar may reflect BMD neck femur, but cannot precisely appraise standard of BMD of neck femur. To normal BMD in lumbar vertebral but with clinical symptom of osteoporosis, only after referring to the BMD of the neck femur, could correct assessment be made