Objective To explore the operation effect of isometric reconstruction of the medial patellofemoral ligament with the semitendinosus tendon and direct suture rehabilitation of the medial patellofemoral ligament in the treatment of patellar dislocation,and provide some reference for the surgical treatment of this disease.Methods Forty patients with patellar dislocation included 20 patients with suture repair (suture group) and 20 patients with reconstruction (reconstruction group).The erythrocyte sedimentation rate,C-reactive protein were determined at 3,14 d after operation in two groups.The congruence angles (CA),lateal patellofemoral angle (LPA),lateral patellar displacement(LS) before and after operation,knee joint function,efficacy after operation were observed and compared.Results There was no significant difference in CA,LPA,LS between two groups (P ＞ 0.05).CA,LPA,LS after operation were improved compared with before operation in two groups [suture group:(9.13 ± 1.88)° vs.(16.50 ±2.83)°,(8.48 ± 1.19)° vs.(-1.28 ± 2.12)°,(0.52 ± 0.43)° vs.(0.78 ± 0.32)° ;reconstruction group:(6.69 ± 1.83)° vs.(16.95 ±3.17)°,(6.24 ± 1.33)° vs.(-0.91 ±2.00)°,(0.32 ±0.23)° vs.(0.70 ±0.16)°],and there was significant difference (P＜ 0.01).The improvement of CA,LPA,LS in reconstruction group were better than that in suture group,and there was significant difference (P＜ 0.01).The knee joint function score by Lysholm was (38.27 ± 17.06) scores in suture group,(79.44 ±9.86) scores in reconstruction group,and there was significant difference (P ＜ 0.05).There was no significant difference in the erythrocyte sedimentation rate,C-reactive protein at 3,14 d after operation between two groups (P ＞0.05).Conclusions The operation effect of isometric reconstruction of the medial patellofemoral ligament with the semitendinosus tendon method is better than the direct suture rehabilitation of the medial patellofemoral ligament method,the former can effectively restore the relationship between patella and femoral trochlea,and cure the dislocation of patella from the root.

Objective:To study the relationship between hepatic tissue insulin receptor substrate 2(IRS2) gene and type 2 diabetes,and the regulation of acupuncture on IRS2 gene expression of hepatic tissue in type 2 diabetes mellitus(T2DM) rats.Methods:Obese rats due to diet were injected in abdomen with small dose streptozotocin(STZ) to induce T2DM.Then these T2DM rats were stochastically divided into acupuncture group,Glibenclamide group and model group.After 4 weeks treatment,fasting blood sugar(FBS) was examined with active blood sugar meter,fasting insulin(FINS) was examined by radioimmunoassav,hepatic tissue IRS2mRNA was evaluated in real-time RT PCR,and normal rats were in control.Results:Serum levels of FBS(15.79?1.87) and FINS(37.20?3.92) in model group were higher than those in normal group(5.16?0.13,23.57?1.63),serum levels of FBS(5.46?0.20) and FINS(20.87?1.80) in acupuncture group were obviously lower than those in model group,which were similar to normal group.FBS(5.26?0.13) reduced obviously and serum FINS(28.10?1.86) reduced in some degree in Glibenclamide group compared with model.Relative contents of IRS2mRNA in model group were 2.19 folds compared with that in normal group.And in Glyburide group it was 4.59 folds compared with that in normal group.In acupuncture group it was 4.04% of that in the normal group.Conclusion:Abnormal hepatic tissue IRS2 mRNA expression may be one of pathogenesis of T2DM.Acupuncture can obviously depress hepatic tissue IRS2 mRNA expression,but Glibenclamide can not.

Objective To study the relationships among leptin, leptin receptor (OB-R) gene in arcuate nucleus and type 2 diabetes mellitus, and the effect of acupuncture on them. Methods Obese rats due to diet were injected in abdomen with small dosage streptozotocin to induce type 2 diabetes mellitus model, and were divided into acupuncture, glibenclamide and model group. Normal rats were in control. After treatment for 4 weeks, fasting blood sugar (FBS), fasting insulin (FINS), leptin, OB-R mRNA expression in arcuate nucleus were evaluated. Height, weight were measured and Lee's index were calculated before and after treatment. Results The FBS and FINS were higher in model group ［(15.79±1.87) mmol/L, (37.20±3.92) mIU/L］ than in control ［(5.16±0.13) mmol/L, (23.57±1.63) mIU/L］, but decreased in acupuncture group ［(5.46±0.20) mmol/L, (20.87±1.80) mIU/L］ and glibenclamide group ［(5.26±0.13) mmol/L, (28.10±1.86) mIU/L］. Leptin was lower in model ［(0.95±0.15) ng/ml］ than in control ［(1.32±0.15) ng/ml］, but was higher in glibenclamide group ［(1.83±0.23) ng/ml］ than in control. Weight and Lee's index decreased in model, acupuncture and glibenclamide groups after treatment. OB-R mRNA expression in arcuate nucleus in model wasn't different from control, acupuncture or glibenclamide group, nor between acupuncture and control, but was lower in glibenclamide group than in control. Conclusion Leptin decreased in type 2 diabetes mellitus rats when they became thin. Leptin resistance appears when treated with glibenclamide. Acupuncture may improve the OB-R mRNA expression in arcuate nucleus to some extent.

e.

Huoxue Tongmai Lishui method, a traditional Chinese medicine treatment for eliminating water, activating and promoting blood circulation, could inhibit fundus hemorrhage on experimental retinal vein occlusion (RVO) with high obvious effective rate, and improve symptoms in traditional Chinese medicine. The action mechanism may be related to reducing plasma viscosity and non-perfusion area, and the formation of collateral circulation.

BACKGROUND: Glaucoma is a kind of eye disease that can cause irreversible blindness which is characterized by visual field loss. Clinical research shows that the optic nerve head has changed before the visual field loss. The morphological changes of the optic nerve head have become the key to determine the early diagnosis of glaucoma and disease development. So it has important significance for us to study the morphological changes of the tissues of optic nerve head under the high intraocular pressure.
OBJECTIVE: To establish three-dimensional finite element model of optic nerve head which includes choroid, retina and lamina cribrosa, and analyze the thickness of the optic nerve head under the acute high intraocular pressure.
METHODS: (1) We chose healthy cats without refractive media and other eye diseases. The tomographic sequence images of the optic nerve head of a cat were obtained with the intraocular pressure of the normal value by using enhanced depth imaging spectral-domain optical coherence tomography. (2) The three-dimensional model of the retina, choroid and lamina cribrosa was obtained. Three-dimensional model of optic nerve head was established by assembling the model of the retina, the choroid and the lamina cribrosa. The thickness of the retina, choroid and lamina cribrosa was analyzed under different intraocular pressures by using the method of finite element analysis. (3) Animal model of acute ocular hypertension was established by methods of anterior chamber perfusion. The tomographic sequence images of the optic nerve head of a cat were obtained with different intraocular pressures by using enhanced depth imaging spectral-domain optical coherence tomography. Then, we measured the thickness changes of the choroid, retina and lamina cribrosa under different intraocular pressures, and compared with the results of finite element analysis.
RESULTS AND CONCLUSION: The thickness of the choroid, retina and lamina cribrosa trended to be thin, and the cup dish ratio of optic nerve head increased gradual y with the increased intraocular pressures. Regarding to the thickness changes of the choroid, retina and lamina cribrosa, the trend of experimental measurement results was consistent with finite element calculation results. Hence, it is feasible to analyze morphological changes of every fundus tissue under high intraocular pressure using the tomographic sequence images obtained by optical coherence tomography. We can predict the morphological changes of the optic nerve head tissue by finite element analysis, which has certain guiding significance in determining the progression of glaucoma.

Aim To establish the pharmacokinetic-pharmacodynamic(PK-PD) modeling to characterize the antipyretic effects of coptisine, an active component in coptis chinensis on rats.Methods Nine healthy male Sprague-Dawley(SD) rats were randomly divided into three groups, each with three.The rats in the first group were injected intravenously with lipopolysaccharide(LPS,100 μg·kg-1) alone.The second and third group rats were given coptisine high-dose(3.87 mg·kg-1) and coptisine low-dose(1.93 mg·kg-1) by tail vein injection at 30 min after LPS injection, respectively.Body temperature was measured at different time points, and blood samples from tail vein were collected simultaneously.The blood concentration of coptisine was determined by ultra performance liquid chromatography.Monolix software was used to model PK-PD of coptisine mean plasma concentration and temperature effects,by population computation with non-covariates.Besides.the model with advantage was selected by the fitting goodness.Results Coptisine could inhibit body temperature of endotoxin-induced fever in rats significantly.Two-compartment linear elimination model was used to describe the final PK model.Gaussian function, an input function of body temperature changes, which was used to depict PD model, the PK and PD models were connected by the Emax model.At last, the final model was fitted better;the fitting results indicated that the EC50 of antipyretic effect of coptisine was 89.7 μg·L-1, and the Emax was 1.88℃.Conclusions Coptisine has a powerful anti-pyretic effect on endotoxin-induced pyrexia of rats with high potency, Low in vivo distribution and quick clearance.

BACKGROUND:Mimics software is a three-dimensional (3D) image processing and editing tool based on CT scan data. Mimics software can rebuild the data and images gotten in CT, MRI and ultrasound scans into 3D images and display on the computer screen so as to help clinicians understand the type of fracture and the relationship of the 3D structure of the surrounding tissue and to provide a great help in the development of orthopedics operation. OBJECTIVE:To explore the application effect of Mimics software 3D reconstruction on perioperative period of Pilon fracture. METHODS:This study selected 61 cases of Pilon fracture, who received the surgery in the Zhongshan City Xiaolan People’s Hospital from September 2008 to September 2013, as research objects. They were randomly divided into 3D group and control group in accordance with the time of admission. Al patients underwent anterioposterior and lateral X-ray film examination and multi-slice spiral CT scan. Patients in the control group received internal fixation according to above examination results. Patients of the 3D group, on the base of those of the control group, were subjected to internal fixation after three-dimensional entity reconstruction by using Mimics V 10.0 software. Operation time and functional curative effect in the postoperative folow-up were compared between the two groups. RESULTS AND CONCLUSION:The operation time was significantly less in the 3D group than in the control group (P < 0.05). The number of patients with excelent 6-month functional curative effect was more, and the number of patients with poor effect was less in the 3D group than in the control group. The 6-month functional curative effect was better in the 3D group than in the control group (P < 0.05). These results showed that the application of Mimics software 3D reconstruction to the perioperative period of Pilon fractures can give comprehensive assessment of the situation of fracture, optimize and improve the preoperative plan and reduce the risk of surgery, and promote the successful completion of internal fixation.

BACKGROUND:The measure and prediction of the shape of optic nerve head are the key issues for early diagnosis and duration prediction of glaucoma. Therefore, it is significant to research the shape variation of optic nerve head under high intraocular pressure.
OBJECTIVE:To establish three-dimensional finite element model of optic nerve head and to analyze the deformation of optic nerve head and the change in retina thickness after acute high intraocular pressure.
METHODS:Animal model of acute ocular hypertension was established by methods of anterior chamber perfusion. The tomographic images of the optic nerve head of a cat were obtained at the normal intraocular pressure and 5 320 Pa, 7 980 Pa, 10 640 Pa, 13 300 Pa, 15 960 Pa intraocular pressures using optical coherence tomography. Then, we measured the variation of retinal thickness at typical location. Basing on the tomographic images of optic nerve head of a cat at normal intraocular pressure, we obtained three-dimensional structure of retina and choroid using software MIMICS. Then three-dimensional model of optic nerve head was established by assembling the retina and choroid. The deformation of optic nerve head and the change in retinal thickness under high intraocular pressure were observed using software ABAQUS. The effectiveness of the model was verified by the experimental result.
RESULTS AND CONCLUSION:With the increase of intraocular pressure, the retinal thickness is thinner, the optic nerve head depth, width and the ratio of the depth to width are gradual y increased. It suggests that the acute high intraocular pressure causes retinal thinning, optic nerve head widening and deepening. It is feasible to establish optic nerve head modeling in vivo by using optical coherence tomography, mechanical analysis can be applied to predict the shape variation of optic nerve head, which is significant to further deduce the pathological process of glaucoma.

Objective To study the effect of clinical pharmacist interventions on the rational use of antibiot-ics.Methods 1 000 hospitalized patients before the implementation of intervention in April 2012 to April 2013 (control group)and the other 1 000 cases of hospitalized patients in May 2013 to May 2014 after the implementation of the intervention (study group)were selected,the antibiotics use rate,hospitalization time and cost,cost of using antibacterial drugs were compared between the two groups.Results The antibiotics use rate of the study group was 56.0%(560/1 000),significantly lower than 78%(780/1 000)of the control group,with significant differences between the two groups(χ2 =11.089,P=0.032),the hospitalization time,cost of using antibacterial drugs of the study group were (12.6 ±0.8)days,(912.2 ±13.2)yuan,significantly better than (16.9 ±0.7)days,(1 528.1 ± 32.5)yuan of the control group,with significant differences between the two groups (t=9.892,10.142,P=0.028, 0.014);The two groups of hospitalization expenses showed no statistical significance (t =4.984,P =0.072 ). Conclusion Clinical pharmacist intervention has a positive effect on the application of antibacterial drugs,which can significantly reduce the use of antimicrobial drugs and reduce the hospitalization days.