Objective: To optimize the ultrahigh pressure extraction ( UPE) process for forsythoside from Forsythia suspensa by Box-Behnken experimental design. Methods:On the basis of single factor screening, a three-factor and three-level Box-Behnken ex-perimental design was employed with liquid/material ratio( X1 ) , extraction pressure ( X2 ) and extraction time ( X3 ) as the independent variables. The response variable was the extraction yield of forsythoside. Results:The optimal UPE conditions for forsythoside were as follows:the ratio of solvent to material (ml·g-1) was 70, the extraction pressure was 151 MPa, and the extraction time was 114 s. With the optimal extraction process, the extraction yield of forsythoside was 13. 15 mg·g-1 . Conclusion:As a novel extraction tech-nology for Chinese herbal medicines, UPE procedure has higher extraction yield, lower extraction temperature, shorter extraction time and less power consumption, which provides a brand-new method for the extraction of forsythoside from Forsythia suspensa.

Objective To evaluate the values of integrated backscatterr (IBS) and dobutamine stress echo- cardiography (DSE) in the diagnosis of coronary artery disease(CAD).Methods Thirty-one suspected CAD patients received DSE and IBS analysis before selective coronary angiography(SCA).Using SCA results as the golden standard of the diagnosis,the diagnostic sensitivity(Se),specificity(Sp),and accuracy rate (Ac) of conventional eye-view and DSE-cyclic variation integrated backscatter (CVIB) were compared. Results The CVIB of myocardial segments perfused by stenotic coronary artery was smaller than that of segments perfused by patent coronary artery during high dose of DSE. For conventional DSE eye-view method, the Se,Sp,and Ac were 80%,72% and 77%, while that of DSE-CVIB were 90%,72% and 83%, respectively. Conclusion IBS is a valuable method in assessing the myocardial wall motion in DSE, and the combination of the two methods can improve the diagnostic accuracy rate of CAD.

Objective To study the methed of designing the surgical nursing electronic medical records and investigate the effect of application.Method According the nursing record form by Guangdong Provincial Clinical Nursing Writing Criterion (Specialty Version),we designed and completed the surgical nursing electronic medical records form.Result After implementation of the nursing electronic medical records,the mean time of measuring and inputting the patients’vital signs was(1.0±0.3)min and the mean time of finishing the nursing electronic medical records was 4.0±0.5 min.Conclusion Standardizing the form and content of nursing electronic medical records can improve the efficiency of routine work and the quality of nursing records.

Objective To construct single chain antibody specific to membrane protein of Schistosoma japonicum by gonetic engineering technique. Methods The V\-H (heavy-chain variable region) and V\-L (light-chain variable region) genes were amplified by PCR from the genomic DNA of NP11-4 cell line, and sequenced by Sanger's method. The ScFv was constructed in pTHA90 vector using V\-H and V\-L genes, then expressed by IPTG. Results The V\-H and V\-L genes were obtained through PCR. The DNA sequences showed that V\-H and V\-L were new variable region genes of antibody. They were registered by GenBank. A ScFv gene with (Gly4Ser) 3 intralinker in the pTHA90 vector was successfully constructed. The ScFv was expressed as thioredoxin-fused proteins about 36\^2 kDa. Conclusion A specific ScFv against the membrane protein of Schistosoma japonicum was constructed and expressed.

Objective:To evaluate the clinical effect of Huanglian-Wendan Decoction combined with Estazolam tablets in the treatment of post-stroke sleep disorders (PSSD) with syndrome of internal disturbance of phlegm-heat. Methods:A total of 96 patients with PSSD who met the inclusion criteria in the People's Hospital of Shenzhen Luohu District from September 2016 to June 2018 were randomly divided into the control group (47 cases) and the study group (49 cases) by random number table method. The control group took Estazolam tablets based on routine treatment, and the intervention group took Huanglian-Wendan Decoction based on the control group. Both groups were treated for 2 weeks. The TCM syndromes were recorded and scored before and after the treatment. The anxiety symptoms were assessed by Hamilton Anxiety Scale (HAMA) and the depression symptoms were assessed by Hamilton Depression Scale (HAMD) respectively. Sleep quality was assessed by Pittsburgh Sleep Quality Index (PSQI). The level of brain-derived neurotrophic factor (BDNF) was detected by ELISA, the level of 5-hydroxytryp-tamine (5-HT) was detected by high performance liquid-phase electrochemical detector. The adverse reactions were recorded and clinical efficacy was evaluated. Results:The total clinical effective rate of the intervention group was 91.8% (45/49), and 76.6% (36/47) in the control group. There was significant difference between the two groups ( χ2=4.227, P=0.040). After the treatment, the scores of HAMA, HAMD and PSQI in the intervention group were significantly lower than that of the control group ( t value were 4.081, 4.869 and 3.900, respectively, all Ps<0.001). The levels of serum BDNF (42.36 ± 6.78 ng/ml vs. 33.98 ± 6.41 ng/ml, t=6.217), 5-HT (127.21 ± 12.39 ng/ml vs. 101.46 ± 11.70 ng/ml, t=10.460) were significantly higher than that of the control group ( P<0.01). During the treatment, the incidence of adverse reactions was 14.9% (7/47) in the control group and 8.2% (4/49) in the intervention group, and there was no significant difference between the two groups ( χ2=1.071, P=0.301). Conclusions:Huanglian-Wendan Decoction combined with Estazolam tablets can improve the clinical symptoms, relieve anxiety and depression of PSSD patients with syndrome of internal disturbance of phlegm-heat, and improve sleep quality and clinical efficacy.

Objective:To investigate the prognostic value of early serum lactate, albumin, and lactate/albumin ratio (L/A) on the 28-day prognosis of adult patients with sepsis.Methods:A retrospective cohort study was conducted among adult patients with sepsis admitted to the First Affiliated Hospital of Xinjiang Medical University from January to December in 2020. Gender, age, comorbidities, lactate within 24 hours of admission, albumin, L/A, interleukin-6 (IL-6), procalcitonin (PCT), C-reactive protein (CRP) and 28-day prognosis were recorded. The receiver operator characteristic curve (ROC curve) was drawn to analyze the predictive value of lactate, albumin and L/A for 28-day mortality in patients with sepsis. Subgroup analysis of patients was performed according to the best cut-off value, Kaplan-Meier survival curves were drawn, and the 28-day cumulative survival of patients with sepsis was analyzed.Results:A total of 274 patients with sepsis were included, and 122 patients died at 28 days, with a 28-day mortality of 44.53%. Compared with the survival group, the age, the proportion of pulmonary infection, the proportion of shock, lactate, L/A and IL-6 in the death group were significantly increased, and albumin was significantly decreased [age (years): 65 (51, 79) vs. 57 (48, 73), pulmonary infection: 75.4% vs. 53.3%, shock: 37.7% vs. 15.1%, lactate (mmol/L): 4.76 (2.95, 9.23) vs. 2.21 (1.44, 3.19), L/A: 0.18 (0.10, 0.35) vs. 0.08 (0.05, 0.11), IL-6 (ng/L): 337.00 (97.73, 2 318.50) vs. 55.88 (25.26, 150.65), albumin (g/L): 27.68 (21.02, 33.03) vs. 29.62 (25.25, 34.23), all P < 0.05]. The area under the ROC curve (AUC) and 95% confidence interval (95% CI) of lactate, albumin, and L/A were 0.794 (95% CI was 0.741-0.840), 0.589 (95% CI was 0.528-0.647), 0.807 (95% CI was 0.755-0.852) for predicting 28-day mortality in sepsis patients. The optimal diagnostic cut-off value of lactate was 4.07 mmol/L, the sensitivity was 57.38%, the specificity was 92.76%. The optimal diagnostic cut-off value of albumin was 22.28 g/L, the sensitivity was 31.15%, the specificity was 92.76%. The optimal diagnostic cut-off of L/A was 0.16, the sensitivity was 54.92%, and the specificity was 95.39%. Subgroup analysis showed that the 28-day mortality of sepsis patients in the L/A > 0.16 group was significantly higher than that in the L/A ≤ 0.16 group [90.5% (67/74) vs. 27.5% (55/200), P < 0.001]. The 28-day mortality of sepsis patients in the albumin ≤ 22.28 g/L group was significantly higher than that in the albumin > 22.28 g/L group [77.6% (38/49) vs. 37.3% (84/225), P < 0.001]. The 28-day mortality in the group with lactate > 4.07 mmol/L was significantly higher than that in the group with lactate ≤ 4.07 mmol/L [86.4% (70/81) vs. 26.9% (52/193), P < 0.001]. The three were consistent with the analysis results of Kaplan-Meier survival curve. Conclusion:The early serum lactate, albumin, and L/A were all valuable in predicting the 28-day prognosis of patients with sepsis, and L/A was better than lactate and albumin.

Objective:To explore the expression and importance of Piezo1, E-cadherin, and Vimentin in nasal polyps patients. Methods:Thirty-five patients undergoing endoscopic sinus surgery under general anesthesia were streamed into 20 cases of nasal polyps（NP group） and 15 cases of simple septoplasty without any sinus disease（Control group）. Immunofluorescence staining and Western Blot were applied to detect the protein level of Piezo1, E-cadherin, and Vimentin in NP tissues and nasal polyp-derived primary human nasal epithelial cells（pHNECs）. Also, BEAS-2B cell lines were treated with human TGF-β1 protein to establish epithelial mesenchymal transition（EMT） model in vitro and quantitative real-time polymerase chain reaction were used to calculate Piezo1 and above biomarkers in the model. Results:Compared with control group, Piezo1 and Vimentin showed higher level while E-cadherin was lower in NP tissues and pHNECs.In EMT model in vitro, Piezo1 and Vimentin were demonstrated higher expression with decreased level of E-cadherin. Conclusion:The tendency of Piezo1 is consistent with the mesenchymal-related biomarker Vimentin, going against with epithelial-related biomarker E-cadherin, implying its involvement with EMT process in nasal polyps.
Humans ; Biomarkers/metabolism* ; Cadherins/metabolism* ; Chronic Disease ; Epithelial-Mesenchymal Transition ; Nasal Polyps/metabolism* ; Rhinosinusitis ; Sinusitis ; Transforming Growth Factor beta1/metabolism* ; Vimentin/metabolism*