Objective To investigate and evaluate the effects of different test methods on the results of Chlamydia trachomatis detection .Methods Enzyme-linked immunosorbent assay(ELISA) method and the immune colloidal gold technique were adopted to detect the Chlamydia trachomatis in 354 specimens .Results Compared the detection results of ELISA and immune colloidal gold technique ,differences of detection rates of overall specimens and female specimens was not statistically significant (P>0 .05) .The positive rate of male specimens detected by ELISA was 11 .02% (13/118) ,which was significantly higher than that of female speci-mens[4 .2% (5/118)](P<0 .05) .Conclusion The specificity and sensitivity of ELISA were higher than those of immune colloidal gold technique ,which is important for the early diagnosis of male urethral Chlamydia trachomatis infection .

Objective:To investigate the application value of superb microvascular imagingin monitoring angiogenesis in the treatment of chronic ischemic diseases of lower limbs by tibial transverse transport.Methods:From May 2019 to December 2020, 12 patients with ischemic diseases of lower limbs who received tibial transverse transport therapy were retrospectively analyzed, including 7 male patients and 5 female patients, aged 30-86 years, with an average age of 64.0±16.6 years. Among them, there were 10 patients with diabetic foot, with a disease course of 5-30 years (mean 14.4±8.3 years), and 2 patients with arteriosclerosis obliterans. The results of lower extremity superb microvascular imaging before and after treatment were recorded and compared.Results:After treatment, 12 patients were found to have obvious new vessels around the artery of lower extremity, the number of vessels 1-8, the average number of 3.25±2.73. We found that a total of 12 patients 20 inherent lower limb artery collateral established, collateral circulation was found around 12 dorsal metatarsal artery (DMA) in 11 patients, around 3 dorsal pedis artery (DPA) in 2 patients, around 3 anterior tibial artery (ATA) in 2 patients, and around 1 posterior tibial artery (PTA) in 2 patients. The lateral branches were established in ipsilateral lower limbs in 6 patients, contralateral lower limbs in 2 patients, and bilateral lower limbs in 4 patients.Conclusion:The phenomenon of angiogenesis is obvious in the clinical application of tibial transverse transport. Superb microvascular imaging can effectively reflect the degree of promoting the establishment of collateral circulation by tibial transverse transport.

Background and objective hTe curative effect of radiotherapy may be limited by the radioresistance of tumor. Mimetic compounds of Second mitochondria-derived activator of caspase (Smac) were hopeful to become new drugs of radiosensitization for tumor because they can increase radiation induced apoptosis in tumor cells. hTe aim of present study is to observe the radiosensitization effect of a new Smac mimetic ANTP-SmacN7 fusion peptide in H460 cell line.Methods In order to observe if the fusion peptide can enter into tumor cell, ANTP-SmacN7 fusion peptide was synthesized and linked by FITC. H460 cell was divided into control, radiation only, ANTP-SmacN7 only and ANTP-SmacN7 combined with radia-tion group. hTe cells were exposed by 0, 2, 4 and 6 Gy and the concentration of ANTP-SmacN7 was 20 μmol/L. Proliferation of H460 tumor cell was detected by WST-1 assay. hTere are four groups in the present study: control group, radiation group, ANTP-SmacN7 group and ANTP-SmacN7 combined with radiation group. Apoptosis was detected by lfow cytometry at 24 and 48 hours atfer the treatment of all the groups. hTe level of caspase3 and cleaved caspase3 were detected by Western blot as-say.Results ANTP-SmacN7 can enter into cells and promote the radiosensitization of H460 cell obviously (F=25.1,P<0.01, sensitivity enhancement ratio was 1.86). The treatment of ANTP-SmacN7 combined with radiation decreased the cloning forming effciency (χ2=45.2,P<0.01; χ2=40.3,P<0.01), activated caspase3 by promoting the expression of cleaved caspase3 and increased the apoptosis of H460 cell line.ConclusionANTP-SmacN7 fusion peptide had remarkably radiosensitization effect on H460 cell line. ANTP-SmacN7 fusion peptide might be hopeful to be applied in radiosensitization therapy as a new Smac mimetic polypeptide in the future.

Objective:To explore the imaging features and clinical effect of accordion maneuver in promoting the bone healing at the docking site after tibial transport under ultrasonic monitoring.Methods:Retrospective analysis was conducted on the clinical data of 16 patients with tibial bone transport who were admitted to the Department of Orthopedics, the second Hospital of Shanxi Medical University from May 2018 to October 2019. All the patients were treated with accordion maneuver to promote bone healing at the docking site under ultrasound monitoring. There were 14 males and 2 females, aged (45.3±14.3) years (range: 6 to 61 years). Before tibial bone transport, the length of the tibial defect of 16 patients was (6.0±2.6) cm (range: 2.0 to 12.1 cm). The operation steps of accordion maneuver were as follows: pressurization for 2 weeks, suspension for 12 days, distraction for 2 weeks, retraction for 2 weeks, and then stop the operation to consolidate the bone mineralization. During accordion treatment, ultrasound was used to monitor the size of hematoma, Adler grade of blood flow signal and the changes of new callus in and around the docking site. X-ray was performed to monitor bone healing at the docking site. Pearson correlation coefficient was used to analyze the correlation between the size of hematoma, the resistance index of blood flow signal and the bone healing time of the docking site. Paley healing criterion was used to evaluate the bone healing and functional recovery of the patients.Results:During accordion maneuver, ultrasound examination showed that the Adler grade of blood flow signals around the docking site increased gradually before retraction and then decreased gradually, but the degree of callus mineralization continued to increase gradually. After 2 weeks of pressure on the docking site, hematoma was observed in 14 patients by ultrasound examination. X-ray showed that all docking sites had bony healing, with the healing time of (30.8±4.9) weeks (range: 23 to 40 weeks).The size of the hematoma was negatively correlated with the healing time of the docking site ( r=-0.819, P<0.01). No hematoma was found in 2 patients, and after continuous observation for 20 weeks, there was still no obvious callus connection at the docking site. After bone cortical removal, ultrasound examination showed hematoma formed at the docking site. Accordion maneuver was continued, and the docking site healed at 30 and 32 weeks after surgery, respectively. There was a negative linear correlation between hematoma size at 2 weeks of compression and the blood flow resistance index at 2 weeks of retraction in 16 patients ( r=-0.801, P<0.01). The patients were followed-up for (14.5±3.2) months (range: 10.6 to 20.2 months). At the last follow-up, 12 patients were evaluated as excellent and 4 were evaluated as good by Paley healing criteria. Conclusion:The distraction and compression stress applied in accordion maneuver can promote bone healing at the docking site, and ultrasound can monitor early signs of bone healing at the docking site to help determine the tendency of bone healing.

Objective:To explore the imaging features and clinical effect of accordion maneuver in promoting the bone healing at the docking site after tibial transport under ultrasonic monitoring.Methods:Retrospective analysis was conducted on the clinical data of 16 patients with tibial bone transport who were admitted to the Department of Orthopedics, the second Hospital of Shanxi Medical University from May 2018 to October 2019. All the patients were treated with accordion maneuver to promote bone healing at the docking site under ultrasound monitoring. There were 14 males and 2 females, aged (45.3±14.3) years (range: 6 to 61 years). Before tibial bone transport, the length of the tibial defect of 16 patients was (6.0±2.6) cm (range: 2.0 to 12.1 cm). The operation steps of accordion maneuver were as follows: pressurization for 2 weeks, suspension for 12 days, distraction for 2 weeks, retraction for 2 weeks, and then stop the operation to consolidate the bone mineralization. During accordion treatment, ultrasound was used to monitor the size of hematoma, Adler grade of blood flow signal and the changes of new callus in and around the docking site. X-ray was performed to monitor bone healing at the docking site. Pearson correlation coefficient was used to analyze the correlation between the size of hematoma, the resistance index of blood flow signal and the bone healing time of the docking site. Paley healing criterion was used to evaluate the bone healing and functional recovery of the patients.Results:During accordion maneuver, ultrasound examination showed that the Adler grade of blood flow signals around the docking site increased gradually before retraction and then decreased gradually, but the degree of callus mineralization continued to increase gradually. After 2 weeks of pressure on the docking site, hematoma was observed in 14 patients by ultrasound examination. X-ray showed that all docking sites had bony healing, with the healing time of (30.8±4.9) weeks (range: 23 to 40 weeks).The size of the hematoma was negatively correlated with the healing time of the docking site ( r=-0.819, P<0.01). No hematoma was found in 2 patients, and after continuous observation for 20 weeks, there was still no obvious callus connection at the docking site. After bone cortical removal, ultrasound examination showed hematoma formed at the docking site. Accordion maneuver was continued, and the docking site healed at 30 and 32 weeks after surgery, respectively. There was a negative linear correlation between hematoma size at 2 weeks of compression and the blood flow resistance index at 2 weeks of retraction in 16 patients ( r=-0.801, P<0.01). The patients were followed-up for (14.5±3.2) months (range: 10.6 to 20.2 months). At the last follow-up, 12 patients were evaluated as excellent and 4 were evaluated as good by Paley healing criteria. Conclusion:The distraction and compression stress applied in accordion maneuver can promote bone healing at the docking site, and ultrasound can monitor early signs of bone healing at the docking site to help determine the tendency of bone healing.

Objective: To explore the clinical therapeutic method and effect of the thumb-tack needle for subcutaneous embedding therapy on treating insomnia with insufficiency of heart and spleen among breast cancer patients. Methods: Totally 80 breast cancer patients with insomnia with insufficiency of heart and spleen treated in department of oncology, the Second Affiliated Hospital of Xi′an Jiao Tong University from March 2018 till November 2018 were selected and assigned into an experiment group and a control group by random number table, 40 cases in each one. The experiment group applied thumb-tack needle for subcutaneous embedding therapy, selecting Shenmen, Sanyinjiao, Zusanli, Anmian as major acupoint and Taibai as assistant acupoint. The control group used fake needles at the same places. After four-week treatment, we evaluated the therapeutic effect using the Pittsburgh Sleep Quality Index (PSQI) and observed side effects. Results: Before treatment, no significantly statistical differences were observed between the two groups on global and each dimension′s PSQI scores (P>0.05). After treatment, the PSQI scores and PSQI global score of the experiment group on sleep quality, sleep latency, sleep duration, sleep efficiency, sleep disturbances, and daytime dysfunction were (1.58±0.53), (1.72±0.33), (1.57±0.64), (1.61±0.68), (1.05±0.42), (1.27±0.53), (8.91±2.73) points respectively, which were (1.86±0.71), (1.90±0.41), (1.85±0.47), (1.97±0.83), (1.42±0.91), (1.56±0.45), (10.86±4.53) points respectively in the control group. There was significant difference between the two groups on PSQI global scores (t=1.998-2.637, P<0.05). The number of patients in the experiment group assessed as clinical cure, obviously effective, effective and noneffective were 8, 13, 9, 10 respectively, which were 1, 5, 12, 22 in the control group respectively. The clinical efficacy showed significant difference between the two groups (χ²=27.68, P<0.01). No side effects, such as infection, needle drop-off and etc. were observed. Conclusions The thumb-tack needle for subcutaneous embedding therapy could improve sleep quality of breast cancer patients with insomnia with insufficiency of heart and spleen, and it′s easy to operate, safe with little side effects.