Presently,with anterior cruciate ligament reconstruction using autogeneic hamstring tendon graft is generally developed,the influencing factors and promotion methods of tendon-bone healing become a research focus of sports medicine.The influencing factors include the graft fixation,the character of bone,stress stimulation and the matching relation between graft and bone tunnel and so on.The promotion methods include applying growth factors,metalloprotease blocking agent,osteoprotegerin,mesenchyme stem cells,physical methods.Some prospective methods of promoting tendon-bone healing have been found,but these methods are in animal study or involving complex laboratory technique.Thus,these methods require further studies before clinical application.

Objective:To compare the level of low density lipoprotein cholesterol (LDL-C)before and after treat-ment between Uygur and Kazak nationality patients diagnosed as coronary heart disease (CHD).Methods:A total of 191 Uygur nationality patients and 184 Kazak nationality patients,who received coronary angiography and were diagnosed as CHD first time, and received measurement of LDL-C concentration.They received CHD secondary preventive treatment for 8~12 months,LDL-C concentration was measured again after treatment,and it's com-pared and analyzed between two nationalities.Results:After treatment,there were significant reductions in levels of total cholesterol (TC)and LDL-C in Uygur and Kazak nationality CHD patients.Compared with Kazak nationality pa-tients,there were significant reductions in levels of LDL-C [(2.74±0.13)mmol/L vs.(2.21±0.17)mmol/L]in Uygur nationality CHD patients (t=3.141,P<0.01).Conclusion:Effect lowering in Uygur nationality patients with coronary heart disease ,especially low density lipoprotein cholesterol is better than that of Kazak nationality.

[Objective]To investigate the expression of Survivin and its relationship with expression of PTEN and cyclinD1.[Method]Immonohistochemical method(SP method)was used to detect the expression of Survivin,PTEN and cyclinDl in 40 osteosarcoma tissues and 20 ostanchondroma tissues.[Result]The expression rate of Survivin was significantly higher in osteosarcoma(62.5%)than that in osteochondroma(10.0%)(P

Objective To determine the involvement of matrix metalloproteinase-9(MMP-9) in the signal transduction pathway of cigarette smoke-induced airway mucous hypersecretion. Methods The well cultured BEAS-2B airway epithelial cells were incubated with different concentrations of cigarette smoke extract (CSE),also some cells were preincubated with MMP-9 inhibitorⅠbefore CSE or exogenous epidermal growth factor(EGF) was added. The mucin(MUC)5AC mRNA level was analyzed by RT-PCR,MMP-9 and the phosphorylated EGFR(p-EGFR) protein production was assayed by western blot,MUC5AC protein and EGF protein were detected by enzyme-linked immunosorbent assay respectively,and gelatin zymography was used to determine the activity of MMP-9. Results Incubation of BEAS-2B cells with CSE up-regulated MUC5AC gene expression and protein production in a dose dependent manner (P0.05). Conclusion CSE stimulates the activity of MMP-9 and MMP-9 protein,causing the shedding of the EGF and leading to EGFR activation. This activation of EGFR downstream signaling pathway increases MUC5AC gene expression and mucin production.

Objective To explore the effect of c-Jun N-terminal kinase(JNK)on the expression of interleukin-10(IL-10) in keratinocytes induced by ultraviolet A(UVA).Methods The HaCaT cells in cultured were either sham irradiated(control) or exposured to 2.4 J/cm2 UVA radiation.The cells were collected at 0-48 h after irradiation,and JNK levels in cells were detected with the immunofluorescence.HaCaT cells were treated with SP600125(a JNK inhibitor) before irradiation,then cells and suspended medium were collected at each time-point after irradiation,and the expression of IL-10 mRNA and protein were determined by RT-PCR and ELISA.Results Compared with control cells,irradiated cells had increased levels of phospho-JNK throughout the entire 48 h following irradiation(P

Electrical stimulation is a common technology to treat neurogenic bladder dysfunction secondary to supersacral spinal cord injury. This paper reviews the historical development of this treatment and current status.

65 mm Hg and CVP between 10-14 cm H2O. In control group no AHHD was performed. Blood samples and urine specimens were obtained before anesthesia (T1), at the end of operation (T2 ) and 72 h after operation (T3 ) for determination of blood and urinary creatinine (BCr, UCr) , blood sodium (BNa) , urinary sodium (UNa), blood urea nitrogen (BUN) , urinary ?1-microglobulin (?1-MG), urinary albumin, urinary immuno-globulin G, creatinine clearance (CCr), and fractional sodium clearance (FENa) . Results BUN, urinary albumin, urinary immuno-globulin G, CCr and FENa were normal during the study in both groups. Urinary concentration of ?1-MG was significantly increased at T2 as compared with the baseline value before anesthesia (T, ) and declined at T3 but was still significantly higher than that at T1 . There was no significant difference between the two groups in terms of the parameters mentioned above. Conclusion AHHD with 6% HES (200/0.5) has no detrimental effects on renal function in patients with normal function.

Since May 2022, there have been outbreaks of mpox in more than 110 previously non-endemic countries and regions around the world, spreading through sexual contact of men who have sex with men (MSM) and their congregate activities. On June 2, 2023, China reported its first indigenous case of mpox. By November 30, a cumulative total of 1 610 cases had been identified.After the government has carried out a battery of control measures, including monitoring, field investigation, tracking and managing close contacts, and health education and intervention for key populations, the outbreak of mpox in China has been reduced to a lower level since October. However, there are ongoing risks of importation from abroad and persistent local transmission. To achieve the goals of suspending human-to-human transmission, it is necessary to further strengthen the work of case detection, investigation of the transmission chain, identification of potentially exposed persons, and intervention for key populations. Additionally, continuous efforts to guide behavioral change among targeted groups and improve capabilities for multi-channel monitoring are essential.

The present study is to investigate the protective actions of guggulsterone against the cytotoxicity produced by exposure to hydrogen peroxide (H2O2) in PC12 cells. It was evaluated by MTT [3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyl-tetrazolium bromide] reduction assay, lactate dehydrogenase (LDH) release assay, and the release of nitric oxide (NO). ROS and Ca2+ in cells were evaluated by DCFH and Fura 2-AM, respectively. Mitochondrial membrane potential (MMP) was assessed by the retention of rhodamine 123 (Rh 123). Apoptosis and morphological alteration in PC12 cells were monitored with flow cytometry and electric microscope. Vitamin E, a potent antioxidant, was employed as a comparative agent. The results showed that preincubation of PC12 cells with guggulsterone (0.1-10 μmol·L-1) prevented cytotoxicity induced by H2O2. Extracellular accumulation of LDH, NO and intracellular accumulation of ROS, Ca2+ resulting from H2O2 were significantly reduced by guggulsterone. Incubation of cells with H2O2 caused a marked decrease in MMP, which was significantly inhibited by guggulsterone. The percentage of H2O2-induced apoptosis in PC12 cells was 24.3%, and decreased in the presence of guggulsterone (0.1-10 μmol·L-1) by .8.4%, 15 .9%, 11.8%, respectively. Guggulsterone exhibited comparable potency against oxidative stress induced by H2O2 in PC12 cells as that of vitamin E. The present findings showed that guggulsterone attenuated H2O2-induced cytotoxicity, extracellular accumulation of LDH and NO, intracellular accumulation of ROS and Ca2+, loss of MMP, and apoptosis, which may represent the cellular mechanisms for its neuroprotective action.

Objective To explore the application of integrating 64-slice CT image with three-dimensional electroanatomic mapping(Carto-Merge) in guiding catheter ablation of atrial fibrillation(AF).Methods Fifteen patients with drug-refractory AF received catheter ablation of AF.64-slice CT scan was performee 1-3 days prior to the ablation procedures.Using a novel software package,the left atrium(LA)with PVs was segmented and extracted for image registration with a combination of landmark registration and surface registration.Results The integration of the CT image into the electroanatomic mapping system was performed successfully in all patients with an error of 2.11?0.82 mm.Thirty pairs of PVs were electrically isolated after circumferential rediogrequency pulmorary rein ablation.The mean procedure time was 170.51?38.47 minutes.Cardiac tamponade occurred in one patient.All the fifteen patients were free of AF recurrence after 3 months of follow up including the 2 cases of persistent AF who required antiarrhythmic drugs.No thromboembolic events or stenosis were observed.Conclusion Integration of 64-slice CT image into the CARTO system successfully performed in patients undergoing catheter ablation of AF and enhance the ablation success rate.