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The automated ball indentation method（ ABI） which is a new way to evaluate the mechanical properties of the materials has been studied in recent years. In order to explore the applicability of the ABI method to evaluate the fracture toughness of metallic materials,some ABI tests were performed by using the Q235B steel. The fracture toughness got from the ABI tests were compared with that from the conventional fracture tests. The results of comparison show that the error between the two methods was less than 10%. As a result,the ABI method can be used to evaluate the fracture toughness of the Q235B steel.

Objective To explore the relationship between sputum index ( ABI) and plasma atherogenic index (PAI) and postmenopausal osteoporosis. Methods A total of 402 women with menopause age of more than 5 years who were admitted to our ward and outpatient clinics from February 2015 to December 2017 were enrolled. They were from 45 to 80 years of age. The data of age, duration of menopause, height, weight, lipid profile, ABI, bone mineral density (BMD) value, and history of oral contraceptive use were recorded and compared. The level of significance was accepted as P < 0. 05. Results A total of 96 postmenopausal patients with osteoporosis were included in the study. The mean age was 58. 3±6. 4 years. In the control group，there were 101 postmenopausal women without osteoporosis, with a mean age of 55. 8±4. 7 years. There was no statistically significant difference with respect to triglyceride level. However, in the osteoporosis group, the levels of total cholesterol, low-density lipoprotein (LDL) , PAI, and ABI were lower, but the level of high-density lipoprotein (HDL) was higher than those in control group (P<0. 05, respectively). At the same time, we found that serum HDL, LDL, total cholesterol, PAI, and ABI levels were correlated with BMD of the femur and lumbar spine. Conclusion High level of HDL, and low levels of LDL, total cholesterol, ABI, and PAI are risk factors of BMD. [ABSTRACT FROM AUTHOR]

OBJECTIVE: To probe into the effects of different doses of rosuvastatin on ankle brachial index (ABI) and high-sensitivity C-reactive protein (hs-CRP) in patients with peripheral arteriosclerosis. METHODS: Totally 120 patients with peripheral arteriosclerosis admitted into Dongguan Taixin Hospital from Jan. 2015 to Dec. 2017 were extracted to be divided into conventional dose group and high dose group via the random number table, with 60 cases in each. Patients in the conventional dose group received oral rosuvastatin 10 mg for once a day; while the high dose group was given oral rosuvastatin 20 mg for once a day. Differences of blood lipid levels [total cholesterol (TC), triglyceride (TG), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C)], ABI and hs-CRP in both groups were compared before and after treatment. RESULTS: After treatment, the levels of TC, TG and LDL-C in two groups were significantly lower than those before treatment, and the levels of TC, TG and LDL-C in the high dose group were significantly lower than those in the conventional dose group (P<0.05). After treatment, the levels of hs-CRP in high dose group was significantly lower than that before treatment and after treatment in conventional dose group, while ABI was significantly higher than that before treatment and after treatment in conventional dose group, with statistically significant differences (P<0.05). CONCLUSIONS: The efficacy of high dose risuvastatin in the treatment of peripheral arteriosclerosis is accurate, superior to the conventional dose, and can improve ABI and hs-CRP. [ABSTRACT FROM AUTHOR]

Objective: To investigate the correlation between ankle brachial index(ABI) and diabetic peripheral neuropathy and TCM syndrome integral. Methods: 66 cases with dialectical type of diabetes who were deficiency of qi and Yin were selected and divided into the lower ABI group(0.9>ABI>0.5) and the normal ABI group(1.4>ABI>0.9) according to the ankle brachial index. Then the symptoms, the ABI and diabetic peripheral neuropathy and TCM syndrome integral of patients were analyzed. Results: The incidence of peripheral neuropathy in the lower ABI group was higher than that of the normal ABI group(P<0.05). The occurrence of symtoms of acupuncture numbness in the lower ABI group was higher than that of the normal ABI group with statistical difference(P<0.05). In the lower ABI group, The abnormality of 10 g nylon yarnab examination were more than that of the normal ABI group with significant difference(P<0.05). The threshold of feeling vibration in the lower ABI group was higher than that of the normal group(P<0.05). ABI value was negatively linearly correlated with TCM syndrome integral(P<0.05). Conclusions: ABI level in diabetic patients with are relevant to peripheral neuropathy and TCM syndrome integral. [ABSTRACT FROM AUTHOR]

Objective To investigate the diagnostic value of RBP4 levels and inflammatory factors in type 2 diabetic with lower extremity arterial disease. Methods 118 cases were divided into simple type 2 diabetes group (A, ABI 1.30 ~ 0.91), severe occlusion group (group B, ABI 0.41 ~ 0.90), severe occlusion group ( group C, ABI < 0.40) according to the ankle-brachial index (ABI), there were 49 cases, 38 cases, 31 cases in the three groups, respectively. RBP, ABI, and IL-6, IL-8, TNF-α were detected in each group. Results There was significant difference in RBP and ABI between group A and group B (P< 0.05), and between group C and group A and B (P< 0.05) . There was significant difference in IL-6 and IL-8 between group A and group B (P< 0.05), and in the levels of IL-6, IL-8, TNF-α in group C were significantly higher than those in group A and B (P < 0.05) .RBP and IL-6, IL-8, TNF-α were significantly positively correlated (P<0.05), ABI and IL-6, IL-8 were significantly negatively correlated (P<0.05). Conclusions RBP4 can help to determine the type 2 diabetic patients with lower extremity arterial disease and work as an important indicator of progress, while inflammatory factors are involved in the development process of lower extremity arterial disease. [ABSTRACT FROM AUTHOR]