This study was aimed to identify and distinguish Metacordyceps liangshanensis recorded by the Sichuan Province Traditional Chinese Medicine Standard from its adulterants and its relative species by combining ITS and COI barcode sequences in order to study the feasibility of this new method. After extracting DNA of 28 species of Cordyceps samples, DNA were amplified and sequenced. And then, ITS and COI sequences were received. Codon-Code Aligner V3.7.1 and Mega 5.0 were used to analyze the variable site and construct the N-J tree. The results showed that the minimum ITS inter-specific K-2P distance was relatively higher than the maximum intra-specific K-2P distance. The inter-specific sequence divergence between M. liangshanensis and its adulterants exhibited high while intra-specific sequence divergence exhibited low. And COI one was the same case. N-J tree of both ITS and COI indicated that same genus belonged together and each species belonged to relatively independent branch. It was concluded that based on the ITS and COI gene, the technology of DNA barcode can be an excellent identification of M. liangshanensis, its adulterants and its relative species. It provided technical support for the further research on species molecular identification and phylogenetics of Cordyceps .

Aim Tongluoxingnao effervescent tablets ( TLXNET) ,based on the ancient formula of QiongGui Tang, can improve cognitive dysfunction in different AD models. This research is aimed to study the effects of TLXNET on the Aβmetabolism and explore the anti-AD mechanism in SH-SY5 Y-APP and SH-SY5 Y-C99 cells. Methods Cells were incubated for 48h in dif-ferent concentrations of medicated serum ( containing 0% ~40% of TLXNET in the serum ) . Firstly, the non-toxic concentration was measured by MTT assay, the activity of cells was detected by LDH methods, and ELISA was used to measure the levels of Aβ1-40 and Aβ1-42 . Then, the gene and protein expressions of APP were detected via RT-PCR and Western blot of which the expressions of shearing fragments such as sAPPα and sAPPβ were investigated by Western blot, the same as the expressions of IDE and NEP. Addi-tionally, the level of mRNA, protein and activity of BACE1 were measured by qRT-PCR, Western blot and fluorescence detection kits respectively. Eventually, MTT assay was performed to detect the cell viability after the SH - SY 5 Y cells were treated with various concentrations of medicated serum and Aβ25-35 for 48h. Results There was no significant toxicity of TLXNET medicated serum in SH-SY5 Y-APP and SH-SY5 Y-C99 cells ( P >0 . 05 ) . TLXNET could signifi-cantly inhibit Aβ secretion in SH-SY5 Y-APP cells ( P<0 . 05 ) , but had no effect on Aβ secretion in SH-SY5Y-C99 cells, the same as the level of APP mRNA and protein in SH-SY5 Y-APP cells and the expressions of IDE and NEP (P>0. 05). Additionally, TLXNET could still notably inhibit the expression of sAPPβ pro-tein in a dose-dependent way, with statistical signifi-cance ( P <0. 05 ) . Meanwhile, the level of mRNA, protein and activity of BACE1 were also significantly decreased by TLXNET (P <0. 01). Moreover, the medicated serum of TLXNET had a protective effect on SH-SY5 Y apoptosis induced by Aβ25-35 ( P <0 . 01 ) . Conclusion TLXNET could obviously inhibit β-secretase enzyme, and has an antagonistic effect a-gainst Aβneurotoxicity, which suggests that the inhibi-tion of β-secretase enzyme and antagonism against Aβneurotoxicity are the main anti-AD mechanism of TLX-NET .

ObjectiveTo investigate the clinical features, diagnosis, treatment, and prognosis of autoimmune pancreatitis (AIP) alone versus AIP with IgG4 sclerosing cholangitis (IgG4-SC). MethodsA retrospective analysis was performed for the clinical data of 40 patients with type 1 AIP who were admitted to The First Affiliated Hospital of Zhengzhou University from June 2015 to January 2020, among whom 29 patients had AIP alone and 11 had AIP with IgG4-SC. The two groups were compared in terms of clinical manifestations, laboratory examination, imaging findings, treatment, and prognosis. The t-test was used for comparison of normally distributed continuous data between two groups, and the Mann-Whitney U test was used for comparison of non-normally distributed continuous data between two groups; the Fisher’s exact test was used for comparison of categorical data between two groups. The Kaplan-Meier method was used to calculate recurrence rate and plot recurrence curve, and the log-rank test was used for univariate analysis. ResultsCompared with the AIP group, the AIP+IgG4-SC group had significantly higher number of affected organs ［3.0(3.0-4.0) vs 3.0(1.5-3.5), Z=-2.172, P=0035］ and response index before treatment ［12.0(12.0-15.0) vs 12.0(9.0-13.5), Z=-2.157, P=0.032］. The AIP+IgG4-SC group had a significantly higher median serum IgG level than the AIP group ［21.0(15.8-23.7) g/L vs 14.8(13.3-15.7) g/L, Z=-2.711, P=0.004］. During the median follow-up time of 15.8 (6.5-31.3) months, the AIP+IgG4-SC group had a significantly higher recurrence rate than the AIP group (χ2=8.155, P=0.004). ConclusionPatients with AIP and IgG4-SC tend to have higher serum IgG4 level, number of affected organs, and recurrence rate than those with AIP alone. Early identification, diagnosis, and treatment can reduce the recurrence rate of AIP.

OBJECTIVETo compare the difference of early postoperative hip abductor strength and function between improved Gibson anterolateral approach (group A) and conventional Gibson posterolateral approach (group B) in patients who had underwent total hip arthroplasty (THA).

METHODSAmong 149 patients performing total hip arthroplasty,130 patients were followed up and were randomly divided into two groups (19 unqualified cases were excluded). Group A included 65 cases who underwent anterolateral approach, and the other group included 65 cases who underwent posterolateral approach. In the group A, male:female = 26:39,with an average age of (72.5 ± 8.3) years old, BMI of (24.7 ± 3.7) kg/m², and hip abductor strength of (1.08 ± 0.49) N · m/kg. In the group B, male:female = 30:35, with an average age of (71.6 ± 7.1) years old, BMI of (25.5 ± 3.9) kg/m², and hip abductor strength of (1.05 ± 0.51) N · m/kg. In the age-related control group, male:female = 33:32, with an average age of (73.1 ± 7.5) years old, BMI of (24.2 ± 3.8) kg/m², and hip abductor strength of (1.17 ± 0.53) N · m/kg. The age, BMI, hip abductor strength, anatomy of surgical approach, hip abduction angles and Harris score in all patients were evaluated at the day before surgery and at 1, 2, 3, 6, and 12 months after surgery. All preoperative clinical data (age, BMI and abductor strength of the uninjured side limb ) of these cases had no significant differences.

RESULTSAt 1, 2, 3, 6, and 12 months after surgery, the hip abductor strength in group A were (0.53 ± 0.13), (0.66 ± 0.21), (0.85 ± 0.15), (0.95 ± 0.19), (1.03 ± 0.13) N · m/kg respectively, while in group B were (0.46 ± 0.14), (0.57 ± 0.18), (0.78 ± 0.12), (0.85 ± 0.18), (0.98 ± 0.14) N · m/ kg respectively.The differences between the two groups at the 6th months after operation were significant; the hip abduction angles in group A were (25.35 ± 4.31)°, (36.53 ± 5.13)°, (48.07 ± 1.62)°, (61.53 ± 1.77)°, (68.62 ± 3.16)°,while in group B were (23.47 ± 2.41)°, (33.42 ± 4.23)°, (46.64 ± 2.51)°, (60.96 ± 1.75)°, (67.47 ± 4.36)°. The differences between the two groups at the 3rd month after operation were significant. Harris score in the group A were 72.23 ± 2.57, 79.36 ± 3.91, 84.75 ± 3.17, 88.63 ± 2.16, 95.21 ± 1.37 repectively ; while in the group B were 71.58 ± 3.62, 78.96 ± 2.21, 83.97 ± 3.57, 87.92 ± 2.94, 94.83 ± 1.62 respectively. There were no significant differences between them.

CONCLUSIONOwing to less muscles interrupted, the THA with improved Gibson anterolateral approach offers a better improvement in earlier hip abductor strength and abduction angle compared with the conventional surgery.

Aged ; Aged, 80 and over ; Arthroplasty, Replacement, Hip ; methods ; Case-Control Studies ; Female ; Humans ; Male ; Middle Aged ; Muscle Strength ; Muscle, Skeletal ; physiology ; Postoperative Period

To study the related substances in purified alliin, HPLC-MS/MS method carried out on a Phenomenex NH2 column was used for screen and identification of the related substances with full scan MS spectra determination of their [M + H] + ions and then the analyses of the retention time, product MS spectra and/or chemical reference standards. The full scan HPLC-MS chromatogram showed that there were seven major related substances in the purified alliin and their m/z of the [M + H] + ions with increasing retention were 116, 133, 147, 152, 175, 178 and 178, separately. And they were identified as proline, asparagine, glutamine, methiin, arginine, isoalliin and cycloalliin (both were isomers of alliin), respectively. The major related substances in purified alliin are amino acids, homologen and the isomers of alliin.
Chromatography, High Pressure Liquid ; methods ; Cysteine ; analogs & derivatives ; analysis ; Tandem Mass Spectrometry ; methods

OBJECTIVETo investigate the preventive effect of interleukin-18 (IL-18) gene modified mature dendritic cells (mDC) vaccine on airway inflammation in mouse asthma model.

METHODSThe asthma model was induced by injection of ovalbumin (OVA) in BALB/c mice. IL-18 gene modified mouse mature dendritic cells (mDC) were detected by flow cytometry and its capacity of inducing allogeneic T cell responses was examined by mixed lymphocyte reaction (MLR). The OVA-induced asthmatic mice were randomly divided into 6 groups: PBS group, DXM group, mDC group, Ad-LacZ-mDC group, Ad-IL-18-mDC group and control group. The pathological changes in lung tissues were assayed by HE and AB-PAS staining. The numbers of inflammatory cells and percentage of eosinophils (EOS) in bronchoalveolar lavage fluid (BALF) were counted. The levels of IFN-γ IL-4 and IL-13 in culture supernatant of splenocytes were measured by ELISA method. The percentage of CD4(+)CD25(+)Foxp3(+) Treg was assessed by flow cytometry analysis.

RESULTThe vaccine was effective in decreasing the infiltration of EOS and accumulation of airway goblet cells in lung tissues, the numbers of inflammatory cells and percentage of EOS in BALF, and the levels of IL-4 and IL-13 in culture supernatant of splenocytes, and in increasing the levels of IFN-γ in culture supernatant of splenocytes and the percentage of CD4(+)CD25(+)foxP3(+) reg.

CONCLUSIONIL-18 gene modified mDC vaccine has a preventive effect on airway inflammation in OVA-induced asthmatic mice.

Animals ; Asthma ; immunology ; pathology ; prevention & control ; Dendritic Cells ; immunology ; Disease Models, Animal ; Genetic Therapy ; Interleukin-18 ; genetics ; Lung ; pathology ; Male ; Mice ; Mice, Inbred BALB C ; Ovalbumin ; immunology

Objective To explore the situation and question of standardized training of residents/graduate students in cardiac surgery by questionnaire survey. Methods From September 2010 to May 2012, 61 resident physicians/graduate students were chosen as research objects in Department of Cardiac Surgery, Peking University Third Hospital. A total of 61 questionnaires were sent out, with a recovery rate of 100%,and an effective rate of 95.1%.The contents of investigation included standardized training content design, standardized training management, the time and"environment" pressure, compliance training effect analysis,student opinion and others,a total of 14 options.EpiData 2.1a software was used to sort and record the data. SPSS 17.0 software was used for statistical analysis. The enumeration data were compared by chi square test.Results During the period of training,the most expected teaching method was"small lecture", accounting for 63.8%; The most difficult part of the process of cardiac surgery training was "postoperative care", accounting for 69%; 100% of the trainees thought that it would be helpful for future work through cardiac training;8.3% of the trainees thought the teachers of cardiac surgery teaching consciousness was not strong; resident weekend "in the hospital" was higher than the proportion of graduate students, and most graduate students chose weekend "in the experiment and research work", the difference was statistically significant (P<0.05). Conclusion Appropriate standardized training program should be combined with the students' background; Teaching team construction and clinical reasonable and effective clinical skills train-ing system is an important link to ensure the quality of teaching.The combination of residents' standardized training and postgraduate education of professional degree remains to be tracked and evaluated in a long time.The feedback from all aspects of the training should be paid more attention to,and the training details should be improved.

Objective To assess the value of 18-fluoro-deoxy-glucose positron emission-CT(FDG PET-CT) in defining the length of primary esophageal cancer.Methods Thirty-two patients had underg- one esophagoscopy,esophagography and FDG PET-CT scans one week before esophagectomy.There was one tumor located in the upper thoracic esophagus,22 in the middle thoracic esophagus,and 9 in the lower tho- racic esophagus.The location and length of primary lesion of the tumor was determined by esophagoscopy, esophagography,and FDG PET-CT.The length of the abnormality seen on the CT portion of the PET-CT scan was determined separately and independently by two radiologists.All results were compared with the resected specimen.Results According to esophagography,CT and PET-CT,all lesion lengths were compared with that of the resected specimen.It was found that the tumor location determined by esophagoscopy was not in accordance with the resected specimen in 2 patients.The mean length of the primary tumor,being from short to long,were (3.8?1.4),(4.1?1.5),(4.4?1.6),(5.3?1.9) and (4.7?1.7) cm,as determined by esophagoscopy,esophagography,CT,actral length of the resected specimen and PET-CT.Compared with the resected specimen,there was obvious difference (P=0.000,0.007,0.025,0.001).Considering that there might be some kind of shrinkage in the resected specimen (about 83.59%,as reported by Ma et al), we rectified the length of resected specimen and compared with other findings again.It was found that insig- nificant difference existed between PET-CT and rectified length value of the resected specimen (P=0.082). Conclusions FDG PET-CT is effective in the length determination of primary esophageal cancer.It may he used to determine the length of esophagus to be resected for patients indicated for esophagectomy.It may also be used to ac- curately delineate the gross tumor volume for patients eligible for radiotherapy.

Objective:To explore the predictive value of systemic immune-inflammation index (SII) and small and dense low-density lipoprotein-cholesterol (sdLDL-C) on contrast-induced acute kidney injury (CI-AKI) in patients with acute ST-segment elevation myocardial infarction (STEMI) undergoing emergency percutaneous coronary intervention (PCI).Methods:This retrospective analysis included 674 STEMI patients who underwent emergency PCI in Affiliated Hospital of Xuzhou Medical University from November 2019 to October 2021, all patients were divided into a training cohort ( n=450) and validation cohort ( n=224) at a ratio of 2∶1 according to the chronological sequence. The patients in the training cohort were further divided into CI-AKI group ( n=92) and non-CI-AKI group ( n=358). Information at admission and emergency blood biochemical indexes were collected, and the SII was calculated. Multifactorial logistic regression analysis was used to explore the independent factors influencing the occurrence of CI-AKI in STEMI patients undergoing emergency PCI in the training cohort and a predictive model was established. Receiver operating characteristic (ROC) curve and Hosmer-Lemeshow test were used to evaluate the model discrimination and calibration. Results:The prevalence of CI-AKI was 20.4% (92/450). Age, proportion of women, sdLDL-C, urea, baseline creatinine, uric acid, neutrophil count, neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) and SII were significantly higher in the CI-AKI group than in the non-CI-AKI group (all P<0.05), and left ventricular ejection fraction (LVEF), high-density lipoprotein cholesterol, estimated glomerular filtration rate (eGFR) and lymphocyte count were significantly lower in the CI-AKI group than in the non-CI-AKI group (all P<0.05). The results of multifactorial logistic regression analysis showed that age ( OR=1.046, P=0.001), LVEF ( OR=0.916, P<0.001), sdLDL-C ( OR=4.754, P<0.001), uric acid ( OR=1.012, P=0.007), eGFR ( OR=0.994, P=0.002), and lnSII ( OR=2.471, P<0.001) were independent determinants of CI-AKI after emergency PCI in STEMI patients. ROC curve analysis showed that area under the curve (AUC) for the diagnosis of CI-AKI was 0.688 with a sensitivity of 73.9% and specificity of 61.5% for the SII cut-off point of 1 179.07×10 9/L. The AUC for the diagnosis of CI-AKI was 0.709 with a sensitivity of 65.2% and specificity of 77.4% for the sdLDL-C cut-off point of 1.147 mmol/L. The AUC for the diagnosis of CI-AKI was 0.847 with a sensitivity of 88.0% and a specificity of 70.6% for the combination of SII and sdLDL-C with age, LVEF, uric acid and eGFR. The Hosmer-Lemeshow test (χ2=6.913, P=0.546) proved the goodness of fit of the model. Conclusions:SII and sdLDL-C have significant clinical value in the prediction of CI-AKI. SII and sdLDL-C combined with age, LVEF, uric acid and eGFR could further improve the predictive efficacy of CI-AKI.

Objective To explore the effects of preoperative serum cancer antigen 19-9 (CA19-9) and neuron-specific enolase (NSE) on the prognosis of patients with esophageal squamous cell carcinoma (ESCC). Methods This prospective study enrolled 176 patients with ESCC. 2 test was used to analyze the relationship between CA19-9, NSE and general clinical features. Survival curves were estimated using Kaplan-Meier method and comparisons were performed using the log-rank test. The Cox proportional hazards model was performed for multivariate analyses of overall survival (OS) and disease free survival (DFS). Results The patients with both high CA19-9 and NSE had the poor prognosis compared with those had both low CA19-9 and NSE (OS: HR=2.310, 95% CI: 1.208-4.418; DFS:HR=2.354, 95% CI：1.265-4.381). Compared to the separate detection of the two markers, the combined detection of CA19-9 and NSE was more accurate in the prognosis prediction of patients with ESCC (OS:C-index=0.686; DFS:C-index=0.684). Conclusions Preoperative serum CA19-9 and NSE were risk factors for the prognosis of patients with ESCC. Combined detection had higher accuracy of prediction of prognosis in patients with ESCC.