Clinical features and risk factors of recurrent acute pancreatitis / 中华胰腺病杂志

Objective:To explore the clinical characteristics and to analyze the risk factors of recurrent acute pancreatitis (RAP).Methods:The clinical data of 3 022 patients with AP from AP database of the Affiliated Hospital of Southwest Medical University between January 2013 and December 2019 were retrospectively analyzed. According to with or without AP relapse and RAP diagnostic criteria, the patients were divided into initial group ( n=2 187) and recurrent group ( n=835). General characteristics, clinical data, and prognostic indicators were compared between the two groups. Multivariate logistic regression analysis was used to explore the risk factors of RAP. Results:The proportion of men, previous biliary disease, hyperlipidemia, diabetes mellitus and previous gallbladder or biliary surgery in recurrent group were significantly higher, while the mean age was significantly lower than that of the initial group. The main causes in the initial group successively were biliary disorders, hyperlipidemia and alcohol, while in the recurrent group were hyperlipidemia, biliary disorders and alcohol. The etiology of hyperlipidemia was significantly higher in the recurrent group than in initial group. The incidence of MAP and regional portal hypertension was significantly higher in the recurrent group, while the incidence of SAP and acute respiratory distress syndrome were significantly lower than those in the initial group, and all the differences were statistically significant(All P value <0.001). The results of the correlation analysis showed that there was no correlation between the severity of RAP and the number of recurrence, and the risk of SAP in RAP did not decrease with the increasing number of recurrence. The results of the multivariate logistic regression analysis showed that previous biliary disorders ( OR=1.303, 95% CI 1.032-1.645, P=0.026), previous history of hyperlipidemia ( OR=2.631, 95% CI 1.580-4.379, P<0.001), and the etiology of hyperlipidemia ( OR=1.773, 95% CI 1.465-2.145, P<0.001) were independent risk factors for RAP. Conclusions:RAP may often occur in middle-aged men and hyperlipidemia is the main cause of RAP, previous history of hyperlipidemia and biliary disease are risk factors for RAP.

Mechanism of Cryptotanshinone Inhibiting Proliferation of Human Breast Cancer MCF7 Cells / 肿瘤防治研究

Objective To investigate the inhibitory effect of cryptotanshinone (CPT) on human breast cancer cell MCF7 and its mechanism. Methods The survival rate of MCF7 cells was measured by MTT assay. Cell apoptosis was detected by Annexin V/PI assay and Hoechst 33258 fluorescence staining assay. Cell cycle and reactive oxygen species were detected by flow cytometry. Cell migration and invasion were detected by cell scratch test and Transwell chamber test. The surface molecules CD44 and CD24 were detected by flow cytometry and microsphere culture. The expression of cell-associated proteins was detected by Western blot. Results CPT inhibited the proliferation of MCF7 cells in a dose-dependent manner, and the 24 h IC50 value was 19.24 μmol/L. Compared with the untreated group, the CPT-treated group showed cell cycle arrested in the S phase, and apoptosis was induced. The results of the cell scratch and Transwell chamber tests showed that CPT significantly inhibited the migration and invasion of MCF7 cells. Furthermore, CPT reduced the CD24-/LowCD44+ cell population in MCF7 cell-derived microspheres. Western blot results showed that CPT could up-regulate the expression of Bax protein, down-regulate the expression of BCL-2, PI3K-p85, Akt, N-cadherin, Twist1, Sox2, Oct4, and Nanog protein, effectively inhibit the phosphorylation of ER-α, and decrease the expression of ABCG2. Conclusion CPT can inhibit the proliferation of MCF7 cells by inhibiting the migration and invasion of MCF7 cells, decreasing the number of CD24-/lowCD44+ cells and affecting the expression of tumor stem cell-related proteins.

A novel technique of pure transperitoneal laparoscopic nephroureterectomy at a single position for native upper tract urothelial carcinoma in ipsilateral renal transplant recipients / 中华器官移植杂志

Objective:To explore the techniques and outcomes of pure laparoscopic native nephroureterectomy (LNUT) with ipsilateral allograft at a single position for upper tract urothelial carcinoma (UTUC) in renal transplant (RT) recipients.Methods:Clinical data were retrospectively reviewed for 12 renal transplant children undergoing native UTUC with ipsilateral allograft from January 2016 to December 2021.There were 4 boys and 8 girls.Complete LNUT was performed with bladder cuff resection at a single position via a transperitoneal approach.The interval between UTUC and RT was 12-146 months.There were 6 pelvic UCs and 6 ureter UCs.Results:All laparoscopic procedures were successfully completed without any serious perioperative complication.Postoperative pathological examination confirmed the diagnosis of urothelial carcinoma.And all surgical margins were negative.One patient experienced an elevation of creatinine after one cycle chemotherapy and normalized after withdrawing chemotherapy.The median follow-up period was (4-65) month.Two cases of contralateral native transitional cell carcinoma had radical nephroureterectomy two years later and another two cases underwent transurethral resection of bladder tumor one year later.One case died from tumor metastasis.The remainders had no tumor recurrence or metastasis during follow-ups.Conclusions:Complete single-position LNUT for UTUC with ipsilateral allograft is a safe and effective mini-invasive technique.Effectively avoiding the injury of allograft, it also offers the advantages of standard operation, minimal trauma, simple handling and enhanced recovery after surgery (ERAS).

Selection of statistical methods for estimating the association between exposure factors and rare outcomes based on cohort studies / 中华流行病学杂志

Odds ratio (OR) and relative risk (RR) are the most commonly used statistical indicators for the estimation of the association between exposure and outcome. In the cohort study with rare outcomes, the estimated OR approximately equals RR, but RR seems more interpretable. The study aims to explore the difference between OR and RR estimated by different multivariate analyses to provide reference for the selection of more appropriate multivariate regression methods and reporting indicators for estimating the association between exposure and rare outcome in cohort studies. This case study used the data from China birth cohort study. Modes of conception and congenital disabilities were regarded as exposure and outcome, respectively. Maternal age, family history of congenital disabilities with clear evidence were included as covariates. Logistic regression, log-binomial regression, and Poisson regression were used to estimate the OR and RR, respectively. Then, OR, RR, and their 95%CI estimated by three regression models were compared. The OR estimated by logistic regression was approximately equal to the RR estimated by log-binomial regression or Poisson regression. However, the RR estimated by log-binomial regression or Poisson regression was closer to 1.00, with a narrower 95%CI. Log-binomial regression or Poisson regression might have non convergence or over dispersion problems. It is recommended to report the RR obtained by log-binomial regression or Poisson regression in the cohort study with rare outcomes if applicable.

Radiomics based on biparametric MRI for the detection of significant residual prostate cancer after androgen deprivation therapy: using whole-mount histopathology as reference standard / 亚洲男科学杂志(英文版)

We aimed to study radiomics approach based on biparametric magnetic resonance imaging (MRI) for determining significant residual cancer after androgen deprivation therapy (ADT). Ninety-two post-ADT prostate cancer patients underwent MRI before prostatectomy (62 with significant residual disease and 30 with complete response or minimum residual disease [CR/MRD]). Totally, 100 significant residual, 52 CR/MRD lesions, and 70 benign tissues were selected according to pathology. First, 381 radiomics features were extracted from T2-weighted imaging, diffusion-weighted imaging, and apparent diffusion coefficient (ADC) maps. Optimal features were selected using a support vector machine with a recursive feature elimination algorithm (SVM-RFE). Then, ADC values of significant residual, CR/MRD lesions, and benign tissues were compared by one-way analysis of variance. Logistic regression was used to construct models with SVM features to differentiate between each pair of tissues. Third, the efficiencies of ADC value and radiomics models for differentiating the three tissues were assessed by area under receiver operating characteristic curve (AUC). The ADC value (mean ± standard deviation [s.d.]) of significant residual lesions ([1.10 ± 0.02] × 10-3 mm2 s-1) was significantly lower than that of CR/MRD ([1.17 ± 0.02] × 10-3 mm2 s-1), which was significantly lower than that of benign tissues ([1.30 ± 0.02] × 10-3 mm2 s-1; both P < 0.05). The SVM feature models were comparable to ADC value in distinguishing CR/MRD from benign tissue (AUC: 0.766 vs 0.792) and distinguishing residual from benign tissue (AUC: 0.825 vs 0.835) (both P > 0.05), but superior to ADC value in differentiating significant residual from CR/MRD (AUC: 0.748 vs 0.558; P = 0.041). Radiomics approach with biparametric MRI could promote the detection of significant residual prostate cancer after ADT.

Effectiveness of temporal island flap pedicled with perforating branch of zygomatic orbital artery to repair the defects after periocular malignant tumor resection / 中国修复重建外科杂志

OBJECTIVE@#To summarize the effectiveness of the temporal island flap pedicled with the perforating branch of zygomatic orbital artery for repairing defects after periocular malignant tumor resection.@*METHODS@#Between January 2015 and December 2020, 15 patients with periocular malignant tumors were treated. There were 5 males and 10 females with an average age of 62 years (range, 40-75 years). There were 12 cases of basal cell carcinoma and 3 cases of squamous carcinoma. The disease duration ranged from 5 months to 10 years (median, 2 years). The size of tumors ranged from 1.0 cm×0.8 cm to 2.5 cm×1.5 cm, without tarsal plate invasion. After extensive resection of the tumors, the left defects in size of 2.0 cm×1.5 cm to 3.5 cm×2.0 cm were repaired with the temporal island flap pedicled with the perforating branch of zygomatic orbital artery via subcutaneous tunnel. The size of the flaps ranged from 3.0 cm×1.5 cm to 5.0 cm×2.0 cm. The donor sites were separated subcutaneously and sutured directly.@*RESULTS@#All flaps survived after operation and the wounds healed by first intention. The incisions at donor sites healed by first intention. All patients were followed up 6-24 months (median, 11 months). The flaps were not obviously bloated, the texture and color were basically the same as the surrounding normal skin, and the scars at recipient sites were not obviously. There was no complication such as ptosis, ectropion, or incomplete closure of the eyelids and recurrence of tumor during follow-up.@*CONCLUSION@#The temporal island flap pedicled with the perforating branch of zygomatic orbital artery can repair the defects after periorbital malignant tumors resection and has the advantages of reliable blood supply, flexible design, and good morphology and function.

Inhibitory effects and mechanisms of cryptotanshinone on the growth of tamoxifen resistant breast cancer cells / 药学学报

This study investigated the inhibitory effect and mechanisms of cryptotanshinone (CPT) on tamoxifen resistant cell MCF7-TAMR. The inhibitory effect of CPT on the viability of MCF7-TAMR cells was evaluated using the MTT assay. We found that CPT significantly inhibited the growth of MCF7-TAMR cells in a dose- and time-dependent manner. The half inhibitory concentration (IC50) is 15.14 ± 2.82 μmol·L-1 at 24 h. CPT induced cell cycle arrest of MCF7-TAMR cells at G0/G1 phase, and promoted apoptosis of MCF7-TAMR cells by upregulating intracellular levels of reactive oxygen species (ROS). Transwell results showed that CPT significantly inhibited the migration of MCF7-TAMR cells. Furthermore, CPT decreased the CD24-/lowCD44+ cell population in MCF7-TAMR cell-derived microspheres. Western blot results showed that CPT effectively inhibited the phosphorylation of estrogen receptor α (ER-α), and reduced the expression of phosphatidylinositol 3-kinase (PI3K-p85), serine-threonine protein kinase (Akt) and multidrug transporter ATP-binding cassette superfamily G member 2 (ABCG2). These results showed that CPT can induce cell apoptosis, cause cell cycle arrest, inhibit cell migration and inhibit ER-α phosphorylation, inhibit PI3K/Akt signaling pathway, reduce the number of CD24-/lowCD44+ cells and the expression of ABCG2, overcome cell drug resistance.

Simultaneous determination of ten phenols in Polygoni Cuspidati Rhizoma by ultra-performance liquid chromatography-quadrupole/time-of-flight mass spectrometry / 国际中医中药杂志

Objective:This study aimed to determinate ten phenols (polydatin, resveratrol, rhein, emodin, chrysophanol, physcion, oxyresveratrol, 2,3,5,4'-tetera-hydroxystilbene-2-O-β-D-glucoside, (＋)-catechin and (-)-epicatechin) in Polygoni Cuspidati Rhizoma simultaneously based on the high-resolution multiple reaction monitoring (MRMHR) mode of ultra- performance liquid chromatography- quadrupole/time-of-flight mass spectrometry. Methods:The assay was performed on Waters ACQUITY UPLC BEH C18 (2.1 mm× 100 mm, 1.7 μm) column using acetonitrile-0.1% formic acid as the mobile phase. The flow rate was 0.2 ml/min. The MRMHR mode was adopted for quantification.Results:The analyzed compounds showed good linearity relationships ( r2>0.999). The intra- and inter-batch relative standard deviations were all <5% and the recovery rate was between 96.28%-103.23%. The content of polydatin was the highest, followed by resveratrol and emodin. However, the contents of chrysophanol and oxyresveratrol were relatively low and some batches were unqualified. The contents of analyzed compounds varied significantly among the ten batches. Conclusion:The proposed UPLC-Q/TOF-MS method was successfully established to determinate ten phenols in Polygoni Cuspidati Rhizoma simultaneously, which could provide technical support for the quality evaluation of Polygonum cuspidatum.

Periprostatic fat thickness measured on MRI correlates with lower urinary tract symptoms, erectile function, and benign prostatic hyperplasia progression / 亚洲男科学杂志(英文版)

This study investigated the correlation between periprostatic fat thickness (PPFT) measured on magnetic resonance imaging and lower urinary tract symptoms, erectile function, and benign prostatic hyperplasia (BPH) progression. A total of 286 treatment-naive men diagnosed with BPH in our department between March 2017 and February 2019 were included. Patients were divided into two groups according to the median value of PPFT: high (PPFT >4.35 mm) PPFT group and low (PPFT <4.35 mm) PPFT group. After the initial evaluation, all patients received a combination drug treatment of tamsulosin and finasteride for 12 months. Of the 286 enrolled patients, 244 completed the drug treatment course. Patients with high PPFT had larger prostate volume (PV; P = 0.013), higher International Prostate Symptom Score (IPSS; P = 0.008), and lower five-item version of the International Index of Erectile Function (IIEF-5) score (P = 0.002) than those with low PPFT. Both high and low PPFT groups showed significant improvements in PV, maximum flow rate, IPSS, and quality of life score and a decrease of IIEF-5 score after the combination drug treatment. The decrease of IIEF-5 score was more obvious in the high PPFT group than that in the low PPFT group. In addition, more patients in the high PPFT group underwent prostate surgery than those in the low PPFT group. Moreover, Pearson's correlation coefficient analysis indicated that PPFT was positively correlated with age, PV, and IPSS and negatively correlated with IIEF-5 score; however, body mass index was only negatively correlated with IIEF-5 score.

Naringenin protects ischemia-reperfusion-induced acute kidney injury by nuclear factor κB / 中华肾脏病杂志

Objective:To explore the effect and involved mechanism of naringenin on acute kidney injury (AKI) induced by ischemia-reperfusion (IR).Methods:The IR-AKI rat model was constructed using the classic bilateral renal pedicle clamping method, then renal function and pathological change were assessed, as well as inflammation-associated genes were detected by quantitative real-time PCR. The hub genes were selected through differential gene analysis and protein-protein interaction network analysis, and their transcription factors were predicted, which constructed a protein library together. The proteins binding to naringenin were selected by reverse molecular docking analysis and further their binding patterns were predicted to explore the mechanism of naringenin. Finally, the results of bioinformatics were verified by experimental methods.Results:Compared with the AKI group, the kidney pathology of the rats in the naringenin pretreatment group was significantly improved, and the renal tubular injury score was reduced ( P<0.01); meanwhile the serum creatinine level and the mRNA expression of the kidney injury molecule 1 (KIM-1) were significantly decreased (both P<0.05). Compared to sham group, IR-AKI increased the level of nuclear factor κB (NF-κB), tumor necrosis factor-α and interleukin-1β (all P<0.05), which reversed by naringenin indicated that naringenin inhibited inflammation in IR-AKI. Differential gene analysis was performed on the GSE98622 data set, and 359 differential genes were obtained. In reverse molecular docking, the proteins with smallest binding energy including NFKBIA, BCL3, NFKB2 and RELA were considered to be related to the preventive effect of naringenin, which were mainly enriched in NF-κB-related inflammation pathways. Domain functional analysis of NF-κB-related genes showed that naringenin could stably bind to its key domain. According to quantitative real-time PCR results, naringenin increased BCL3 level after AKI ( P<0.05), and further decreased the expression level of RELA and NFKB2 (both P<0.05). Conclusion:Naringenin protects IR-AKI by alleviating inflammation, and its mechanism is related to increasing BCL3 and thereby inhibiting the NF-κB pathway.

Research progress of STAT3 inhibitors / 药学实践杂志

Signal transducer and activator of transcription 3 (STAT3) is a signal transcription protein that exists in the cytoplasm. The abnormal activation of STAT3 is closely related to cell proliferation, differentiation, and canceration. It has abnormal expression in cancer stem cells such as breast cancer, pancreatic cancer, lymphoma, and lung cancer. Therefore, inhibiting the abnormal expression of STAT3 has become a new approach for antitumor therapy.

Synthesis of the active ingredient rosavin of Rhodiola rosea / 药学实践杂志

Objective To establish the chemical synthesis of the active ingredient rosavin of Rhodiola rosea. Methods β-D-pentaacetylglucose, 1-hydroxy-2,3,4-triacetylarabinose and cinnamyl alcohol were used as starting materials. The target compound was prepared by 1-position selective of β-D-pentaacetylglucose deacetylation, glycosylation reaction, glucose 6-OH selective protection and deprotection and other 8-step reactions. Results The target product, rosavage, was successfully obtained with high yield. The structure was confirmed by ESI-MS, 1H-NMR and 13C-NMR. The protection of 6-OH with high selectivity and high yield of tert-butyldiphenyl chlorosilane played a vital role in the synthesis process,. Conclusion The synthetic route has the advantages of simple operation, high yield, and good safety.

Risk factors for severe acute pancreatitis complicated with infection and the effects on immune level / 中华胰腺病杂志

Objective:To analyze the risk factors for severe acute pancreatitis (SAP) complicated with infection and the effects on immune level.Methods:A total of 150 SAP patients admitted to Deyang People′s Hospital from February 2018 to April 2019 were divided into the infected group ( n=90) and the uninfected group ( n=60) according to whether SAP was complicated with infection or not; the changes of pathogenic bacteria in the infection focus, infection risk factors, blood inflammatory cytokines levels and T-lymphocyte subgroups were analyzed. Results:A total of 105 pathogenic bacteria were detected in 90 SAP patients with infection, among which 74(70.5%) were gram-negative bacteria, mainly escherichia coli, klebsiella pneumoniae and pseudomonas aeruginosa. There were 27 strains (25.7%) of gram-positive bacteria, mainly staphylococcus aureus, and 4 strains (3.81%) of fungi. Biliary causes, total parenteral nutrition time≥1 week, APACHEⅡ score≥11, surgical intervention, and respiratory mechanical ventilation were all independent factors for SAP infection (all P<0.05). At 24 hours after onset, blood IL-4(59.1±6.2)ng/L, IL-6(134.1±12.2) ng/L, IL-10(146.4±13.2)ng/L, TNF-ɑ(76.3±5.2)ng/L in infected group were all significantly higher than those in the uninfected group (all P values <0.05); at 30 days after the onset, blood IL-4(33.6±5.8)ng/L, IL-6(49.2±6.8)ng/L of the infected group, IL-10(80.7±8.8)ng/L, TNF-ɑ(28.7±5.5)ng/L in infected group were significantly lower than those in the uninfected group (all P values <0.05). At 24 hours after onset, the proportion of CD 4+ T lymphocytes in the infected group was significantly higher than that in the uninfected group [(45.3±5.5)% vs (32.3±5.2)%], and the proportion of CD 8+ T lymphocytes was significantly lower than that in the uninfected group [(20.6±4.2)% vs (29.7±4.8)%]; at 30 days after onset, the proportion of CD 4+ T lymphocytes in the infected group was significantly lower than that in the uninfected group [(21.6±3.7)% vs (40.2±2.5)%], and the proportion of CD 8+ T lymphocytes was significantly higher in the uninfected group [(48.4±4.1)% vs (32.8±4.0)%]; and all the differences were statistically significant (all P <0.05). Conclusions:The strains of concurrent infection with SAP were mainly gram-negative bacteria. Biliary causes, total parenteral nutrition time, surgical intervention and respiratory mechanical ventilation were all risk factors for concurrent infection with SAP. SAP infection may cause excessive inflammatory response and lead to immune cell damage, which should be paid attention to in clinical treatment.

To explore the timing of percutaneous catheter drainage in fluid aggregation and encapsulation necrosis of acute necrotizing pancreatitis / 中华内分泌外科杂志

Objective:To assess the impact of timing of percutaneous catheter drainage (PCD) application (ANC and WON) on outcomes and complications in severe acute pancreatitis (SAP) treatment.Methods:The clinical data of 75 SAP patients treated with PCD from Jan. 1, 2018 to Dec.31, 2018 in Pancreatitis Treatment Center of Deyang People’s Hospital were retrospectively analyzed. The clinical manifestations, application period and curative effect of PCD were analyzed.Results:Among the 75 patients, 51 (68%) were ANC patients, (32%) were WON patients, 0 (0%) died, 70 (93.3%) were cured, and 5 (6.7%) underwent further surgical treatment. There was no significant difference between the average time of PCD application, or complications (such as pancreatic fistulae, catheter obstruction or falling and haemorrhage) ( P>0.05) . Conclusion:Percutaneous catheter drainage in different stages of acute necrotizing pancreatitis does not affect its safety and efficacy, and delayed use don’t have better curative effect.

Development and validation of a noninvasive diagnostic model for IgA nephropathy / 中华肾脏病杂志

Objective:To explore the development and clinical application value of Nomogram model, a noninvasive early diagnosis model, in IgA nephropathy.Methods:The clinical data of 712 patients with primary glomerular disease diagnosed by renal histopathological examination in Affiliated Hospital of Qingdao University during October 1, 2010 to August 31, 2019 were collected retrospectively, including 241 cases of IgA nephropathy and 471 cases of non-IgA nephropathy. According to the time of case inclusion, the patients were divided into the training set ( n=426, 156 cases of IgA nephropathy and 270 cases of non-IgA nephropathy) and the validation set ( n=286, 85 cases of IgA nephropathy and 201 cases of non-IgA nephropathy). Univariate and multivariate logistic regression equations were used to analyze the risk factors for diagnosing IgA nephropathy in patients of training set. Nomogram model for noninvasive diagnosis of IgA nephropathy was established according to the akichi information criteria (AIC) and applied to the validation set for validation. The discriminant degree, calibration degree and clinical practicability of the model were verified and evaluated by receiver operating characteristic curve (ROC), calibration curve and decision curve analysis (DCA), respectively. Results:Multivariate logistic regression results showed that the age ( OR=0.966, 95% CI 0.947-0.985, P=0.001), IgA/C3 ratio ( OR=1.889, 95% CI 1.468-2.432, P<0.001), serum albumin ( OR=1.091, 95% CI 1.047-1.136, P<0.001), total cholesterol ( OR=0.810, 95% CI 0.694-0.946, P=0.008), and gross hematuria ( OR=6.858, 95% CI 1.867-25.189, P=0.004) of patients with primary glomerular disease were independent factors for the diagnosis of IgA nephropathy. Nomogram diagnostic model was constructed based on the above indicators, and the areas under ROC curve were 0.880 and 0.887 respectively in the training set and the validation set. The calibration curve showed that the predicted probability of the model was in good agreement with the actual probability. DCA showed that the safety and clinical net benefit of the model were higher. Conclusions:The Nomogram model has high accuracy and clinical practicality in diagnosing IgA nephropathy, and can be used for noninvasive and early diagnosis of IgA nephropathy to enable patients to receive early treatment.

Effect of long-snake moxibustion on nonspecific low back pain with symptom of cold and dampness / 中国针灸

OBJECTIVE@#To compare the clinical therapeutic effect of long-snake moxibustion and ginger-partitioned moxibustion at point on nonspecific low back pain (NLBP) with symptom of cold and dampness.@*METHODS@#A total of 120 patients were randomized into a long-snake moxibustion group, an ashi point group and a waiting for treatment group, 40 cases in each one. Ginger-partitioned moxibustion was applied from Dazhui (GV 14) to Yaoshu (GV 2) of governor vessel in the long-snake moxibustion group, and was applied at point of affected area in the ashi point group, 40 min each time, once every other day and totally 8 times were required. No intervention was adopted in the waiting for treatment group, and after the trial, long-snake moxibustion was applied. Before and after treatment, the visual analogue scale (VAS) scores of rest and activity, the Oswestry disability index (ODI) score and the score of cold and dampness symptom were observed in the 3 groups.@*RESULTS@#Compared before treatment, the VAS scores of rest and activity, the ODI scores and the scores of cold and dampness symptom after treatment were decreased in the long-snake moxibustion group and the ashi point group (<0.05). After treatment, the variations of the above indexes in the long-snake moxibustion group and the ashi point group were larger than those in the waiting for treatment group (<0.05), and the variations of the above indexes in the long-snake moxibustion group were larger than those in the ashi point group (<0.05).@*CONCLUSION@#Long-snake moxibustion can effectively improve the pain, dysfunction and the symptom of cold and dampness in patients with nonspecific low back pain, and the improvement is superior to the ginger-partitioned moxibustion at point.

Effect of Angelica sinensis polysaccharide on the osteogenic differentiation of bone marrow mesenchymal stem cells of rats with high glucose levels / 华西口腔医学杂志

OBJECTIVE@#This study aims to evaluate the effect of Angelica sinensis polysaccharide (ASP) on the osteogenic differentiation of the bone marrow mesenchymal stem cells (BMSCs) of rats with high glucose levels.@*METHODS@#Rat BMSCs were isolated and identified by osteogenic and adipogenic differentiation. Then, the BMSCs were divided into three groups as follows: normal control group (5.5 mmol·L⁻¹ glucose), high glucose group (25.5 mmol·L⁻¹ glucose), and ASP+high glucose group (25.5 mmol·L⁻¹ glucose +40 mg·L⁻¹ ASP). The proliferation activities of the BMSCs were detected by CCK8. Alizarin red staining, and alkaline phosphatase activity were used in the examination of osteogenic activity. Quantitative real time-polymerase chain reaction was used to detect the expression levels of the osteogenic genes (Runx2, Osx, OCN, Col-Ⅰ) and the key factors of Wnt/β-catenin signal pathway (CyclinD1, β-catenin). In vivo, a type 2 diabetes rat model was established. The rats were divided into three groups, namely, the normal control group (normal rats), diabetes group (diabetic rats), diabetes+ASP group (diabetic rats, ASP feeding). Then, the tibia bone defect was established. The repair of bone defects in each group was observed through histological examination.@*RESULTS@#The proliferation of BMSCs was higher in the high glucose group and ASP+high glucose group than in the normal control group (P0.05). The number of calcium nodules of BMSCs; alkaline phosphatase activity; and the mRNA expression of Runx2, OCN, Osx, Col-Ⅰ, CyclinD1, β-catenin in the high glucose group were lower than those in the normal control and ASP+high glucose groups (P0.05). The bone mass was significantly lower in the bone defect of the diabetes group than in the bone defect of the normal control or diabetes+ASP group (P0.05).@*CONCLUSIONS@#ASP can promote the osteogenic differentiation of rat BMSCs under high glucose culture and induce bone regeneration in rats with type 2 diabetes. These features may be related to the activation of the Wnt/β-catenin signaling pathway.

The variation of neutrophil extracellular traps in the staphylococcus aureus infected MRL/lpr systemic lupus erythematosus mouse / 中华风湿病学杂志

Objective This study aims to investigate the variation of neutrophil extracellular traps (NETs) in animal model of staphylococcus aureus (SA) infected systemic lupus erythematosus (SLE) MRL/Lpr mouse.Methods The infection model was developed by injecting the Staphylococcus Aureus in the mouse tail vein.The Staphylococcus Aureus load of the serum and kidney was detected by enzyme-linked immuno sorbent assay (ELISA).The level of NETs complex in the serum was detected by Cell-Death-Elisa-Plus-Kit and anti-myeloperoxidase (MPO) antibody.The kidney NETs formation was tested with the immunofluorescence.Statistical program for social sciences (SPSS) 17.0 software and Image Pro Plus statistical software were used for analysis.Comparisons between groups were made using unpaired t test for normally distributed numerical data,nonparametric test for non-normally distributed numerical data,and single factor analysis (ANOVA) for variance.Results The incidence of walking instability,purulent exudate in eyes and death was 2/6,1/6,1/6 respectively in Staphylococcus Aureus-infected MRL/Lpr mice,However,The control group had no death and related symptoms.The Staphylococcus Aureus load of the serum was higher in MRl/lpr mice when compared to the control group [(106.79±23.39) ng/ml vs (48.82±11.49) ng/ml,U=2.739,P＜0.05] after Staphylococcus Aureus infection.The control group had a higher NETs level [(2.24±0.15) vs (1.64±0.08),U=2.882,P＜0.05],however,all the MRL/Lpr mice had no significant change of the NETs level [(2.63±0.61) vs (2.65 ±0.260),U=0.548,P＞0.05] after Staphylococcus Aureus infection.Conclusion After infected by the Staphylococcus Aureus,more symptoms,higher death rate and higher Staphylococcus Aureus load of the serum present in the MRlL/lpr mice than the control group.While,there's none significant change of the NETs level in Staphylococcus Aureus-infected MRLL/lpr mice.This suggests that the dyspoiesis of NETs is present in Staphylococcus Aureus-infected MRL/lpr mice.

Observation of curative effect on lumbar facet joint syndrome by palace bonesetting therapeutic combined with lumbar medial branch nerve block / 国际中医中药杂志

Objective To observe the clinical effect of "palace bone-setting" Dieda-Wanying cream combined with Yuan Shu Zhi Pai Zi fixation in the treatment of acute ankle sprain.Methods A total of 60 patients with acute ankle sprain were collected and randomly divided into observation group and control group according to the random number table method,with 30 cases in each group.The observation group was treated with "Palace Bone-setting" Dieda-Wanying cream combined with Yuan Shu Zhi Pai Zi for fixation.The control group was treated with external application of diclofenac diethylamine emulsion and fixation of elastic bandage.Two groups were treated for 14 days.The patients pain disappeared time and the swelling subsided,the VAS scale for assessment of ankle pain observed.The American Orthopedic Foot and Ankle Society (AOFAS) Ankle-after scoring system was used to assess the Ankle function,evaluation of clinical curative effect.Results The pain disappear time (9.7 ± 1.6 d vs.13.4 ± 3.5 d,t=5.638),regression and time (3.5 ± 1.3 d vs.6.7 ± 1.1 d,t=10.292) in the observation group were significantly earlier than those in the control group (P＜0.01).After treatment,VAS score (1.9 ± 1.1 vs.3.3 ± 1.3,t=4.503) of the observation group significantly lower than that of the control group (P＜0.01);AOFAS score (93.6 ± 3.9 vs.84.2 ± 5.1,t=8.019) significantly higher than the control group (P＜0.01).Total effective rate in the observation group was 96.7％ (29/30),and the control group was 80.0％ (24/30),which the difference was statistically significant (x2=4.043,P=0.044).Conclusions The "Palace Bone-setting" Dieda-Wanying cream combined with Yuan Shu Zhi Pai Zi fixation has definite curative effect on acute ankle sprain,relieve pain,swelling and promote the ankle function.

Thoughts on professional postgraduate training strategy for urology / 中华医学教育探索杂志

Education of professional postgraduate medical students is an important way for the cultivation of high-level medical and health talents in China.This article discusses the current status and problems in the training of professional postgraduate medical students,with thoughts on how to train qualified professional postgraduate medical students majoring in urology in the context of the expansion of enrollment scale.This article also puts forward the following detailed suggestions:pay attention to the quality of students and formulate corresponding training strategies;continuously improve the teaching level of postgraduate tutors and teachers and attach importance to the quality of teaching;improve the rotation and assessment system for postgraduates;actively apply new training methods.