Objective To establish a method used for determination of Aconitine and Hypaconitine and Mesaconitine in blood by LC/MS/MS.Methods Extraction of blood sample was conducted by use of 1% thirdchloroactic acid and acetonitrile liquid,and the electrospray fog ionic source,and positive ion MRM scan were employed.Result The linearity correlation coefficients(r)was≥0.992 2.The limit of quantification (LOQ S/N=5) was 2.0 ng/ml for Aconitine,0.5 ng/ml for Hypaconitine,and 0.5 ng/ml for Mesaconitine.The recovery of appended contrast in blank blood sample ranged from 91.25% to 103.1% with coefficient of variation (CV,n=6) less than 10.93%.Conclusion The method of LC/MS/MS is sensitive and reliable,and the sample handling is quick and simple,which was suitable for determination of the Aconitine and Hypaconitine and Mesaconitine in blood sample.

Sixty SD rats of either sex, weighing 150-280g , were divided into control ( C ), vitamin E(Vit E)and SOD groups. An anesthetized open-chest preparation with LCA occlusion was perfromed for 5min, and followed by 60 min reperfusion . ECG , arterial pressure (AP), left ventricular pressure ( LVP ) , dP/dt and epicardial map-ping

Objective To investigate the effects of Gegenqinlian Decoction on the IL-1β level in the patients with chronic periodontitis.Methods Seventy patients with chronic periodontitis were divided into the observation group and control group,35 cases in each group.The control group was given the periodontal basic treatment.On the basis of the control group,the observation group was given Gegenqinlian Decoction.The probing depth,attachment level and bacterial plaque index level before and after treatment were compared between the two groups.The levels of IL-1β and IL-6 in serum and gingival crevicular fluid were measured before and after treatment in the two groups.Results The total effective rate in the observation group was 94.29%,which was significantly higher than 71.43% in the control group,the difference was statistically significant (χ2=6.437,P<0.05).After treatment,the probing depth,attachment level and bacterial plaque index in the two groups were significantly decreased (P<0.05),but which in the observation group were significantly lower than those in the control group,the difference was statistically significant (P<0.05).The levels of IL-1β and IL-6 in serum and gingival crevicular fluid after treatment in the two groups were decreased significantly (P<0.05),but which in the observation group were significantly lower than those in the control group,the difference was statistically significant (P<0.05).Conclusion Gegenqinlian decoction can significantly reduce the IL-1β level in the patients with chronic periodontitis,reduces inflammation reaction and improves the therapeutic effect.

Objective To observe the characteristics of collateral circulation blood flow of ipsilateral ophthalmic artery in patients with internal carotid artery occlusion. Methods The imaging data of 20 patients with internal carotid artery occlusion were analyzed retrospectively. There were 11 males and 9 females, aged from 30 to 65 years, with an average age of (45±3) years. All the patients underwent digital subtraction angiography and transcranial Doppler examination, and 6 patients underwent simultaneous magnetic resonance angiography. The blood supply and collateral circulation of the ipsilateral ophthalmic artery were observed . Results All the patients had unilateral internal carotid artery occlusion. The blood supply of the ipsilateral internal carotid artery and ophthalmic artery comes from the collateral circulation between the middle meningeal artery branches of the external carotid artery and the ophthalmic artery in 18 patients (90.0%); it also comes from the anterior communicating artery of the contralateral internal carotid artery in 16 patients (80.0%); and the posterior communicating artery of the contralateral internal carotid artery in 12 patients (60.0%), respectively. Conclusion The blood flow of the ipsilateral ophthalmic artery mainly comes from the middle meningeal artery branch of the ipsilateral external carotid artery, also comes from the anterior and posterior communicating arteries of the contralateral internal carotid artery.

Objective To evaluate the value of human papillomavirus (HPV) 16/18 E6 protein detection in shunting and prognosis in patients with atypical squamous cells of undetermined significance (ASCUS) and low-grade squamous intraepithelial lesions (LSIL). Methods A total of 98 patients with ASCUS or LSIL from the Affiliated Cancer Hospital of Shanxi Medical University between May 2014 and May 2015 were selected as the subjects. All of them received the thin-cytologic test (TCT), HPV DNA, HPV16/18 E6 protein tests and colposcopy examination. After 3-year follow-up of patients with cervical intraepithelial neoplasia (CIN) grade Ⅰor bellow lesions diagnosed by biopsy and 30 negative controls, the above tests were performed again. The efficacies of all the tests were analyzed. The value of CIN grade Ⅱ or above was predicted. Results The sensitivity, specificity, positive predictive value and negative predictive value in predicting CIN grade Ⅱor above lesions of HPV16/18 E6 protein , HPV DNA and HPV16/18 DNA was 30.8％, 95.3％, 50.0％, 90.0％, respectively; 84.6％, 37.6％, 17.2％, 94.1％, respectively and 61.5％, 67.1％, 22.2％, 91.9％, respectively in shunting study. The relative risk (RR) of CIN grade Ⅱor above lesions in patients with positive HPV16/18 E6 protein, persistent positive HPV16/18 DNA and positive HPV16/18 DNA was 13.429, 10.231 and 8.343, respectively in the follow-up study. Odds ratio (OR) of HPV16/18 E6 positive protein presenting persistent positive HPV16/18 DNA was 34.833 (95％ CI 5.020-241.711). Conclusions In patients with ASCUS and LSIL, the specificity and positive predictive value of HPV16/18 E6 protein in predicting CIN grade Ⅱ or above lesions are higher than those of HPV DNA and HPV16/18 DNA. Moreover, these patients with HPV16/18 E6 protein positive have a higher risk of developing CIN grade Ⅱ or above lesions and persistent positive HPV16/18 DNA.

Objective:To observe the efficacy and safety of urokinase arterial thrombolysis in the treatment of central retinal artery occlusion (CRAO) at different time window.Methods:A retrospective study. From January 2014 to November 2019, 157 eyes (157 CRAO patients) in the Xi’an People's Hospital (Xi’an Fourth Hospital) were included in the study. There were 120 males and 37 females, with the average age of 54.87±12.12 years. The mean onset time was 65.66±67.44 h. All patients were tested with BCVA using international standard visual acuity chart, and the results were converted into logMAR visual acuity record. The arm-retinal circulation time (A-Rct) and the filling time (FT) of retinal arterial trunk-terminal filling time were measured by FFA. The mean logMAR BCVA was 2.44±0.46, the mean A-Rct and FT were 27.72±9.78 and 13.58±14.92 s respectively. According to the time window, the patients were divided into the onset 3-72 h group and the onset 73-240 h group, which were 115 patients and 42 patients respectively. There were no statistically significant difference between the 3-72 h group and the 73-240 h group in age, A-Rct and LogMR BCVA before treatment ( χ2=-0.197, -1.242, -8.990; P=0.844, 0.369, 0.369); the difference was statistically significant in FT comparison ( χ2=-3.652, P=0.000). Urokinase artery thrombolytic therapy was performed at different time window of 3-24 h, 25-72 h, 73-96 h, 97-120 h, 121-240 h after the onset of onset. Age and A-Rct of patients with different treatment time windows were compared, and the differences were not statistically significant ( χ2=6.588, 6.679; P=0.253, 0.246).In comparison of FT and logMAR BCVA, the difference was statistically significant ( χ2 =30.150, 71.378; P=0.000, 0.000). FFA was rechecked 24 hours after treatment, BCVA was rechecked 30 days after treatment. The changes of A-Rct, FT and BCVA before and after treatment were compared and analyzed. The occurrence of adverse reactions during and after treatment were observed. The two groups of measurement data were compared. The t test was used for those with normal distribution and χ2 test was used for those with non-normal distribution. Spearman correlation analysis was used to analyze the correlation between onset time and the difference of A-Rct, FT shortening time and logMAR BCVA after treatment. Results:At 24 h after CRAO treatment, A-Rct and FT of 157 cases were 19.64±6.50 and 6.48±7.36 s respectively, which were significantly shorter than those before treatment, and the differences were statistically significant ( χ2=-16.236, -14.703; P=0.000, 0.000). The logMAR BCVA at 30 d after treatment was 1.72±0.76, which was significantly higher than that before treatment. The difference was statistically significant ( χ2=-14.460, P=0.000). After CRAO urokinase arterial thrombolysis at different time window, there were statistically significant differences in A-Rct shortening time, FT shortening time, and logMAR BCVA difference ( χ2=12.408, 24.200, 104.388; P=0.030, 0.000, 0.000). There was no statistically significant difference between the 3-72 h group and the 73-240 h group ( χ2 =-1.042, P=0.297) in shortening time of A-Rct after treatment. The difference of FT shortening time was statistically significant ( χ2=-3.581, P=0.000). The difference of logMAR BCVA was statistically significant ( χ2=-9.905, P=0.000). The results of Spearman correlation analysis showed that there was no correlation between the onset time and the shortening time of A-Rct and FT after treatment ( rp=-0.040, -0.081; P=0.436, 0.115), and negative correlation with the logMAR BCVA difference ( rp=-0.486, P=0.000). One case of intracranial hemorrhage occurred after treatment, and it improved after dehydration to reduce cerebral edema, scavenging free radicals and brain protection. Conclusions:Urokinase arterial thrombolytic therapy is effective for CRAO within time window of 3-240 h, A-Rct, FT and LogMRA BCVA are all improved. However, with the prolongation of thrombolytic therapy time window, the therapeutic effect of urokinase arterial thrombolytic therapy is decreased. The therapeutic effect of Urokinase arterial thrombolytic therapy was better within 72 h.

Animals ; Caenorhabditis elegans ; metabolism ; radiation effects ; Caenorhabditis elegans Proteins ; genetics ; metabolism ; Light ; Lysine ; analogs & derivatives ; genetics ; metabolism ; Promoter Regions, Genetic ; Protein Transport ; RNA, Transfer ; genetics ; metabolism ; Tumor Necrosis Factor Ligand Superfamily Member 14 ; metabolism

Objective To evaluate the role of circular RNA protein arginine methyltransferase 5 (circPRMT5) in the genesis and progression of colorectal cancer.Methods From January 2013 to December 2017,96 patients with colorectal cancer who underwent radical resection in Department of General Surgery,Jiading District Central Hospital Affiliated to Shanghai Medical College of Health were collected.The expression of circPRMT5 in colorectal cancer tissues was examined by real-time polymerase chain reaction (RT-PCR).The correlation between circPRMT5 expression level and age,gender,tumor size,tumor location,pathological differentiation,TNM stage,lymph node metastasis of patients with colorectal cancer was analyzed.The SW620 and LOVO cells were divided into control group,circPRMT5-lenti group and circPRMT5-shRNA-lenti group according to different interventions.The effects of circPRMT5 expression level on viability,apoptosis,mitochondrial membrane potential and migration of SW620 and LOVO cells were detected.The influence of circPRMT5 expression level on E-cadherin,Slug,N-cadherin and vimentin was determined by Western blotting method.The potential target miRNA of circPRMT5 was predicted by Starbase V2.0.Student's t test,analysis of variance and chi-square test were performed for statistical analysis.Results The results of RT-PCR showed that the expression of circPRMT5 in colorectal cancer tissues was higher than that of adjacent cancer tissues (2.167 ± 0.345 vs.1.103 ± 0.144),and the difference was statistically significant (t =26.847,P ＜ 0.01).The circPRMT5 expression level was positively correlated with tumor size,TNM stage,lymph node metastasis and distant metastasis (x2 =6.010,10.971,5.321 and 6.272,all P ＜0.05).The upregulation of circPRMT5 expression could promote proliferation and migration of SW620 and LOVO cells.The circPRMT5 downregulation could inhibit cell proliferation,induce apoptosis and decrease mitochondrial membrane potential.The results of Western blotting indicated that,compared with those of control group,the expression of Slug,N-cadherin and vimentin increased in circPRMT5-1enti group (1.023 ±0.038 vs.2.105 ±0.042,1.051 ±0.309 vs.2.277 ± 0.111,1.055 ± 0.040 vs.2.002 ± 0.537,respectively),however the expression of E-cadherin decreased (2.074 ± 0.214 vs.0.627 ± 0.023),and the differences were statistically significant (t =31.817,22.065,14.536 and 9.148,all P ＜ 0.01).Compared with the control group,the expression of Slug,N-cadherin and vimentin decreased in circPRMT5-shRNA-lenti group (1.023 ± 0.038 vs.0.585 ± 0.023,1.051 ± 0.309 vs.0.616 ± 0.043,1.055 ±0.040 vs.0.537 ±0.022),while the expression of E-cadherin increased (2.074 ± 0.214 vs.2.756 ± 0.148),and the differences were statistically significant (t =-13.795,-14.252,-11.794 and-13.116,all P ＜ 0.05).A total of 21 miRNAs might have potential binding sites with circPRMT5 predicted by Starbase V2.0 software.The expression of miRNA4735-3p,miRNA202-3p,miRNA326,let-7i-5p and miRNA4500 was negatively correlated with circPRMT5 expression in both SW620 and LOVO cells confirmed by RT-PCR.Conclusion CircPRM75 is an important oneogenic gene in the genesis and progress of colorectal cancer,and may have certain potential application prospect in the research and development for colorectal cancer.

To investigate the therapeutic effect of pectoralis major muscle flap transplantation in thoracotomy patients with sternal infection. Methods From January 2014 to December 2017, the treatment group of 39 patients with thoracic bone infection after cardiac surgery was used pectoralis major muscle flap to close the wound, while 26 patients were treated by debridement and vacuum sealing drainagea at the same time as the control group. The hospitalization time, hospital costs, number of operations, satisfaction survey, and relapse rate were compared between the those. Results Compared with the control group, the treatment group has the benefit of shorter hospitalization time [(18. 1 ± 3. 8)days vs. (36. 7 ± 11. 4) days], less hospital costs [(19429 ±4088)yuan vs. (33495 ±10712)yuan], less number of operations [(1. 1 ±0. 3)times vs. (2. 4 ±0. 8)times], higher level of satisfaction(56. 4％ vs. 30. 8％), lower relapse rate(5. 1％ vs. 26. 9％), the differences are statistically significant(all P <0. 05). Conclusion Thoracic reconstruction with pectoralis major muscle flap is an effective treatment for sternal infection in postcardiac surgery.