Objective: To probe into essence of syndrome types of blood stasis syndrome. Methods: High shearing whole blood viscosity (?HB). low shearing whole blood viscosity (?LB), plasma viscosity (?P), aggregation index of erythrocyte (AI), hematocrit (HCT) and levels of serum total cholesterol (CH), triglyceride (TG), plasma fibrinogen (Fb), prostacyclin (PGI2), thromboxane (TXA2) were determined in 216 cases of coronary heart disease with blood stasis syndrome. Results: ?LB and AI increased and PGI2/TXA2 ratio decreased significantly in the group of stagnation of Qi and stasis of blood, showing high aggregation state of blood: CH, HCT, Fb, AI and ?LB increased significantly in the group of blood stasis due to Yin -deficiency, showing high concentration, high agglutination and high aggregation state of blood : ?LB, ?P and TG increased significantly in the group of stagnation of phlegm and blood, showing high viscosity state of blood; only ?HB had some increase in the group of Qi - deficiency and blood stasis . Conclusion: Different syndrome types of blood stasis syndromehave different biochemical material base, and changes of blood physical and chemical properties are closely related with TCM syndrome types, which provides an experimental basis for treatment of subtypes of blood stasis syndrome.

Objective To evaluate the influence of black dots,isolated line above the best correct visual acuity and multiple lines containing the best correct visual acuity in the accuracy of Jackson cross cylinder examination.Methods Forty students were chosen(11 males,29 females,between 24 to 29 years old).Routine examination of phoropter was used to check under the maximum plus to maximum visual acuity(MPMVA) status.The sequence of three fixation targets was chosen randomly.Astigmatism chart was used to judge the best one when the different results were obtained.Results Among the 80 eyes of 40 students,12 eyes were spherical(the cylinder degree below 0.25 DC).The response of three fixation targets was the same in 19 eyes(27.9%),23 eyes(33.8%)were sensitive to the black dots target,14 eyes(20.6%)were sensitive to the isolated line above the best correct visual acuity,12 eyes(17.6%) were sensitive to multiple lines containing the best correct visual acuity.Kruska Wallis Test was used to detect the difference among three groups.No significant difference was found(?2 =4.026,P=0.134).Conclusion According to the efficiency of examination,communication and judgment,black dots target is recommended although no difference is detected among three fixation targets.

In order to assess whether there is any abnormality in oncogene expression in hypoxia induced pulmonary hypertension, the expression of oncogene erbB in the lung tissue of rats with and without hypoxia was detected by in situ hybridization with digoxingenin as a prob label. The results showed that there was a slight expression of erbB mRNA in control normoxic rats. After hypoxia for 7 to 21 days, its expression increased significantly as compared with that in control (P

Objective Accumulating evidence has demonstrated that the sub-anesthetic dose of ketamine exerts rapid and ro-bust antidepressant-like effects though its action mechanisms are not yet fully understood .The aim of this study was to investigate the role of gamma-aminobutyric acid ( GABA) in the antidepressant effects of ketamine . Methods Thirty-two male Wistar rats were e-qually randomized into four groups: saline, ketamine, GABA, and GABA+ketamine.All the animals were implanted with a guide cannula into the lateral ventricle and on the eighth day after operation subjected to a 15 min forced swimming test (FST) for the estab-lishment of a depression model .At 24 h after modeling , the rats of the saline and ketamine groups were treated intracerebroventricularly with 2μL isotonic saline solution, and those of the GABA and GABA +ketamine groups with 50μg (2μL) GABA, followed by intrap-eritoneal administration of 1 mL saline in the former two groups and 10 mg/kg (1 mL) ketamine in the latter two groups 10 min later.At 30 min after treatment , the open field test ( OFT) was carried out for crossing and rearing scores and a 6-min FST was performed to re-cord the immobility time in the last 5 minutes.The content of GABA in the prefrontal cortex of the rats was measured following behav -ioral tests. Results The immobility time was significantly decreased in the ketamine group ([107.5 ±21.2]sec) as compared with the saline, GABA, and GABA+ketamine groups ([167.2 ±22.1], [159.8 ±17.5], and [143.8 ±22.1]sec) (P<0.05), with no significant difference between the GABA and GABA +ketamine groups (P>0.05).The level of GABA in the prefrontal cortex was remarkably lower in the ketamine group ([12.4 ±3.4]ng/mg prot) than in the saline, GABA, and GABA+ketamine groups ([23.3 ± 6.3], [27.3 ±5.7], and [18.0 ±5.4]ng/mg prot) (P<0.05), but markedly higher in the GABA than in the GABA +ketamine group (P<0.05).OFT scores exhibited no significant difference in the lo-comotor activity among the four groups of rats ( P >0.05 ). Conclusion The antidepressant effects of ketamine are related to the decreased GABA level in the prefrontal cortex in rats receiving FST .

Objective To study the radiation sensitive enhancement ratio (SER) of NS398 on esophageal cancer stem cells and adherent tumor cells and analyze the radioresistance related protein expressions.Methods ECA109 esophageal cancer stem cells were cultured in serum-free medium.Expression levels of cell surface maker CD44 + and CD271 + were analyzed by flow cytometry.MTT assay was used to detect cell proliferation after the treatments with NS398 and irradiation(0,4 and 8 Gy).The sensitization effects of NS398 on the parental cells and its spheroid were evaluated by clone formation assay.Western blot assay was performed to determine protein expressions.Results Serum-free medium was successfully applied to isolate the cancer stem cells with spherical properties.CD271 + in the spheroid cells was notable higher than that in the parent cells (t =3.81,P ＜ 0.05).After irradiation,the proliferation rate of parental cells was higher than that in spheroid cells.After the combination treatment of NS398 and irradiation,SF2 value of parental cells was lower than spheroid cells(t =2.91,P ＜ 0.05)and the SER of NS398 on parental cells was greater than spheroid cells.The expressions of Bmi-1,c-Myc,β-catenin and Cyclin D1 in spheroid cells were higher than those in parental cells (t =8.09,7.90,7.50,7.15,P＜0.05).Cyclin D1 expression levels under both cell situations increased after 4 Gy irradiation (t =9.74,6.67,P ＜0.05).Compared to the 4 Gy irradiation alone group,the β-catenin and Cyclin D1 expression levels in both parental cells (t =10.15,12.12,P ＜ 0.05) and spheroid cells (t =3.23,7.45,P ＜ 0.05) decreased in the combination group.Conclusions Esophageal cancer stem cells with high level of CD271 can be isolated with serum-free medium and it is radioresistant where β-catenin and its downstream proteins may be involved.

Objective To evaluate the hemodynamic responses of esmolol to nasotracheal intubation with fiberbronchoscope(FOB). Methods Thirty-five ASAⅠorⅡpatients undergone stomatology and otorhinolaryngology surgery were randomly divided into fiberoptic nasotracheal intubation esmolol group (esmolol group) and fiberoptic nasotracheal intubation group (control group). The intravenous administration of esmolol 1mg?kg-1 was performed 2 min before tracheal intubation in esmolol group. Noninvasive SBP,DBP,MBP,HR and SpO2 were recorded before and after anesthetic induction,at intubation and 1,2,3,4,5 min after intubation. Results The SBP,DBP and MBP 1 min after intubation in esmolol group were significantly lower than those in control group(P

Objective To construct reference standards for detection and quantification of Klebsiella pneumoniae (K.pneumoniae) with SYBR Green I-based real-time PCR assay. Methods Primers were designed based on the published sequence of the phoE gene of K.pneumoniae. The standard was prepared by cell culture, PCR and T-A clone methods, and was identified by colony PCR and DNA sequencing. Results The standard curve showed a very good linear negative regression between threshold cycle (Ct) and Log starting quantity of copy number. The detection range was from 5.2 to 5.2×106 copies per reaction, and the detection limit was 6 copies per reaction. The coefficients of variance (CVs) of three parallel experiments were in the range of 0.05%-0.91%. Conclusion The reference standards have high stability and reproducibility. They can be used in the quantitative detection of K.pneumoniae.

Objective To investigate the clinical features,diagnosis and treatment experience of idiopathic calcinosis of the scrotum(ICS).Methods We report 5 cases with a 4-month to 20-year history of ICS.The related literatures were reviewed.Results The multiple scrotum masses in these patients were increased slowly in size and number.The levels of blood calcium and phosphorus were normal.Histopathologically,nodules were composed of basophilic calcified material and located in the dermis.There was no epithelial lining around the calcified nodules.Conclusion ICS is a rare localized benign disease.The diagnosis of the tumor relies largely on the histopathology.Surgical excision is the best choice for treatment.

BACKGROUND:The morphological and mechanical transfers of unstable intertrochanteric fractures were complicated, so it is difficult to analyze the biomechanical characteristicsof the common experimental methods in a comprehensive way. Moreover, the high cost, long cycle and poor repeatability of common tests limit its application in biomechanics. OBJECTIVE:To analyze the biomechanical characteristics of unstable intertrochanteric fracture in different fixation ways by three-dimensional finite element analysis. METHODS:Intertrochanteric fracture locking dynamic hip fixation model (C1), Gamma nail fixation model (C2) and proximal femoral anatomical locking plate model (C3) were established. The distal end of the femur was fixed, and subjected to the hip reaction force of 2800 N and abduction muscle strength of 1 200 N. Three-dimensional finite element analysis was used to analyze the stress distribution, stress concentration and maximum displacement of unstable intertrochanteric fracture in three different fixation ways. RESULTS AND CONCLUSION:(1) Stress: the anterolateral stress and anteromedial stress of C3 were the maximum. Posterolateral stress and posteromedial stress ofC3 were the minimum. There were significant differences among the three groups (alP< 0.05). (2) Stress of fracture space: significant differences in anterolateral stress, anteromedial stress, posterolateral stress and posteromedial stress were determined in C1, C2 and C3 (P< 0.05). Anterolateral stress of C3 was significantly less than anterolateral stresses of C1 and C2 (P< 0.05). Anteromedial stress of C3 was significantly less than that of C1 and C2 (P< 0.05). Posterolateral stress of C1 was significantly larger than that of C2 and C3 (P<0.05). Posteromedial stress of C1 was significantly larger than that of C2 (P< 0.05). Posteromedial stress of C3 was significantly less than that of C1 and C2 (P< 0.05). (3) Significant differences in bone stress around the screw top were detected among the three groups (P< 0.05). Bone stress around the screw top of C3 was significantly larger than that of C1 and C2 (P< 0.05). (4) Thus, locking dynamic hip screw, Gamma nail and proximal femoral anatomical locking plate have their advantages and disadvantages for treatment of unstable intertrochanteric fracture of the femur. The appropriate internal fixation device should be selected according to the need.

The expression of musclin gene in skeletal muscle of rats fed with high-fat diet and its correlation to insulin resistance.diabetes mellitus and GLUT4 were explored.The results showed that musclin expressin was up-regulated(1.39±0.36 vs 0.31±0.07,P<0.01)in skeletal muscle of rats fed with high-fat diet, suggesting that this finding may be related with insulin resistance and involvement of GLUT-4 expression(1.27 4± 0.32 vs 1.84±0.24.P<0.01).