Objective To explore the feasibility of evaluating cardiac structure, coronary artery,pulmonary artery and cardiac function in one single scan by 320-row CT ECG-gated double phase cardiac function scan mode. MethodsForty patients underwent the 320-detector row CT double phase cardiovascular angiography. The pulmonary phase and aortic phase were reconstructed in order to evaluate the pulmonary and coronary artery. MPR reconstructions of both pulmonary and aortic phase were used to analyze the function of the two ventricles. And the results of the cardiac function were compared with those of transthoracic echocardiography. Thirty-five cases could be analyzed and diagnosed, while the other 5 cases had to be given up because of the poor imaging quality. The mean heart rate was (71.2 ± 11.2) beat per min (bpm). No arrhythmia case included. Results ( 1 ) Pulmonary embolism were diagnosed in 11 cases,coronary artery disease (CAD) were found in 5 cases, while post-stent implantation were observed in 7 cases. Six cases of congenital heart disease were diagnosed with 3 ASD and 3 primary pulmonary hypertension. Another one was diagnosed with left atrial myxoma, and 5 cases were pulmonary embolism associated with CAD. All of above cases were verified by final clinical diagnosis. (2) The heart function parameters including LVEDd , RVEDd, LVESd, RVESd and LVEF were (36.7 ±3.3), (43.3 ± 3.4) mm,(31.6±5.1), (41.3 ±5.1) mm and (47.1 ±15.1) for CT, while those were (40.3 ±3.1), (47.3 ±4.2) mm,(37.3 ±5.6), (45.3 ±3.3) mm,and (46.0 ± 14.8) for ultrasound, respectively. The CT results were correlated with the ultrasound ( n = 35, r = 0.886-0.988, P ＜ 0.01 ). (3) The average radiation exposure was ( 5.4 ± 0.5 ) mSv. Conclusions 320-row CT ECG-gated double phase cardiac function scan mode is feasible for the "one-stop-shop" examination of the cardiovascular disease. This noninvasive method is recommended for the diagnosis, differential diagnosis, treatment and prognosis of cardiovascular disease.

Objective To investigate the effects of rhein on insulin sensitivity of diabetic rats induced by high fat feeding and low dose streptozotocin (STZ), and the possible mechanisms. Methods (1) Fifty-five Wistar rats were randomly divided into normal control group (NC,n=15) and diabetes group (DM, n=40). The NC rats were fed with regular chow and DM rats were fed with high fat diet. Five weeks later, the DM rats were injected with STZ 30 mg/kg once. The 30 diabetic rats were randomly divided into two subgroups, diabetic control group (DM-C) and diabetic group treated with rhein (DM-T). DM-T rats received intragastric administration of rhein and DM-C rats were given equal doses of solvent. All rats were sacrificed eleven weeks later, the blood sample was collected. The body weight, fasting blood glucose (FBG), HbA1C, triglycerides (TG), tolal cholesterol (TC), glycosylated serum protein (GSP) and Fasting insulin (FINS) concentrations were examined.The insulin sensitive index (ISI) and homeostasis model assessment for insulin resistance (HOMA-IR) werecalculated. (2) The PPART and GLUT-2 expression in hepatic tissue were detected by immunohistoehemistry and Western-blot. Results At the end of experiment the FBG [(22.57±3.23 vs 7.11±1.44) mmol/L,P<0.01],HbA1C[(12.49±1.96 vs 8.36±0.84)%, P<0.01], TG [(0.89±0.29 vs 0.58±0.17)nunoL/L,P<0.01],GSP [(57.29±4.14 vs 13.43±2.70)μmoL/L, P<0.01] and tumor necrosis factor-α [TNF-α,(1.365±0.133 vs 1.233±0.159) μg/L, P<0.05] and the liver weight index (0.032±0.004 vs 0.024±0.002, P<0.01) in DM-C rats were higher than those in NC rats. Besides, the ISI of DM-C rats decreased [In(ISI),-5.46±0.61 vs -4.81±0.75, P<0.05] and HOMA-IR elevated [In(HOMA-IR),2.34±0.64 vs 1.70±0.78,P<0.05]. The expression of PPARγ [11 131.7(5 723.1-18 979.4) vs 48 782.1(21 576.7-108 829.5), P<0.01] and GLUT-2 (0.98±0.35 vs 1.29±0.27, P<0.05) of DM-C rats decreased markedly compared with NC rats. Compared with DM-C rats, FBG [(15.94±3.16) mmol/L], HbA1C[(10.51±1.74)%], GSP[(47-31±6.09) μmol/L] in DM-T and the In (HOMA-IR), (1.86±0.30) rats decreased (P<0.05 or P<0.01), and In (ISI), of DM-T rats increased (-4.97±0.29, P<0.05). The expressions of PPARγ [35 156.3(24 554.3-86 660.9)] and GLUT-2 (1.55±0.55) of DM-T rats were up-regulated markedly compared with DM-C rats (P<0.05 or P<0.01). Conclusion Rhein decreased FBG, HbA1C and GSP, and improved the insulin sensitivity in diabetic rats, which might be related to the up-regulated expressions of PPARγ and GLUT-2 in hepatic tissue.

Objective:To investigate the clinical efficacy of modified parks incision in the surgery for correction of strabismus in children.Methods:Sixty children patients with strabismus who received treatment in Shanxi Hospital of Integrated Traditional and Western Medicine, China between January 2015 and January 2020 were included in this study. They were randomly assigned to receive surgery with either a trapezoidal flap incision (control group, n = 30) or modified Parks incision (modified Parks group, n = 30). Time to tear film break-up, amount of tears secreted, and the angles of deviation in strabismus were compared before and after surgery. The efficacy was evaluated by corneal fluorescein staining score. Postoperative complications were compared between the two groups. Results:Before surgery, there were no significant differences in the time to tear film break-up and the amount of tears secreted between the two groups (both P > 0.05). After surgery, the time to tear film break-up and the amount of tears secreted were (9.16 ± 1.74) seconds, (7.51 ± 1.36) mm/5 minutes in the modified Parks group and they were (7.57 ± 1.45) seconds and (6.05 ± 1.14) mm/5 minutes, respectively in the control group. After surgery, the time to tear film break-up and the amount of tears secreted in each group were shortened or decreased compared with before treatment, and these two indices in the modified Parks group were significantly shorter or less than those in the control group ( t = 3.845, 4.506, both P < 0.05). Before surgery, there were no significant differences in corneal fluorescein staining score and the angles of deviation in strabismus between the two groups (both P > 0.05). After surgery, corneal fluorescein staining score and the angles of deviation in strabismus in the modified Parks group were (5.14 ± 1.51) points and (10.68 ± 1.75) PD, respectively and they were (6.25 ± 1.73) points and (15.95 ± 2.14) PD, respectively in the control group. After surgery, corneal fluorescein staining score or the angle of deviation in strabismus was increased or decreased in each group. The corneal fluorescein staining score and the angle of deviation in strabismus in the modified Parks group were significantly lower than those in the control group ( t = 2.648, 10442, both P < 0.05). Total effective rate in the modified Parks group was significantly higher than that in the control group [96.7% (29/30) vs. 80.0% (24/30), χ2= 4.043, P < 0.05]. The incidence of postoperative complications and discomfort rate in the modified Parks group were 0.0% (0/30) and 53.3% (16/30), respectively, which were significantly lower than those in the control group 13.3% (4/30) and 80.0% (24/30), χ2 = 4.286, 4.800, both P < 0.05]. Conclusion:Modified Parks incision for corrective strabismus surgery can better correct the angle of strabismus, protect the stability of tear film function, reduce postoperative complications and decrease postoperative discomfort rate compared with trapezoidal flap incision.

Objective:To verify the effect of ozone on Staphylococcus aureus (S.aureus) colonization in patients with atopic dermatitis (AD) and its correlation with the patient's status.Methods:A total of 12 patients with moderate or severe AD,aged from 6 to 65 years,were recruited from outpatient of the Third Xiangya Hospital.The treatment sides were showered with ozonated water and smeared with ozonated oil for 7 days (twice a day),while the control sides were washed with warm running water and smeared with base oil.At different time points,the severity scoring ofatopic dermatitis (SCORAD) scores,sleep and pruritus scores were assessed and compared between the two sides.Meanwhile,plate cultivation was used to quantitatively detect the changes ofS.aureus colonization in skin lesions.Results:After 7 days treatment,erythema and pimples were decreased in the treatment sides.The clear skin texture,smooth skin,improved skin lesions were also observed by dermoscopic examination.The results of reflectance confocal microscopy (RCM) demonstrated that the parakeratosis was improved,the structures were clearer,and the inflammatory cells infiltration was reduced after ozone treatment for 7 days.After ozone treatment for 3 and 7 days,the S.aureus colonization in the treatment sides decreased by (75.55±21.81)％ and (97.24±2.64)％ respectively.Compared to that of control sides,the percentage of S.aureus colony after ozone treatment for 7 days decreased significantly (P＜0.01).After ozone treatment for 7 days,the SCORAD scores,sleep and pruritus scores were significantly decreased (all P＜0.01).There was a linear correlation between the decreasing percentage of S.aureus colony and the declining percentage of SCORAD scores in AD patients.Conclusion:Topical ozone therapy can effectively reduce S.aureus colony in skin lesions and alleviate the severity of AD patients with moderate to severe degree.

【Objective】 To study the effect of different concentrations of heparin, ATⅢ or a mixture of heparin and antithrombin Ⅲ (ATⅢ) (1∶1)on the activity of human coagulation factor Ⅸ (FⅨ). 【Methods】 The heparin or heparin/ATⅢ with different concentrations were added into human coagulation Ⅸ products or human prothrombin complex (PCC) to prepare heparin or heparin/ATⅢ samples, containing 0, 0.1, 0.3, 0.5, 0.8, 1, 2 and 4 IU per unit. ATⅢ with different concentrations were added into FⅨ or PCC to prepare ATⅢ samples containing ATⅢ 0, 0.1, 0.5 and 1 IU per unit. The FⅨ activity of the samples prepared was tested by one-stage coagulation method. Then corresponding amount of protamine sulfate were added to neutralize heparin or heparin/ATⅢ to detect the FⅨ activity again. Their influence of heparin, ATⅢ and heparin/ATⅢ with different concentrations on the activity of FⅨ were analyzed. 【Results】 When the content of heparin or heparin/ATⅢ was 0, 0.1, 0.3 and 0.5 IU per unit of FⅨ, the detection results of FⅨ titer in samples were consistent. When the content of heparin or heparin/ATⅢ per unit of FⅨ was 0.8, 1, 2 and 4 IU, the detection results of FⅨ titer were all lower than those of samples without heparin. When the ATⅢ content was 0, 0.1, 0.5 and 1 IU, the FⅨ titer of the samples was consistent. 【Conclution】 When the content of heparin or heparin/ATⅢ in the product is less than or equal to 0.5 IU per IU of FⅨ, the step of protamine sulfate adding could be omitted as it has little effect on FⅨ activity. When >0.5 IU per IU of FⅨ, however, protamine sulfate adding, to neutralize heparin, is necessary before FⅨ activity testing.