摘要
Objective To investigate the effects and mechanism of circTRIM33-12 on proliferation,apoptosis and epithelial-mesenchymal transition(EMT)of brain glioma cells by miR-191/DAB2 axis.Methods The expressions of circTRIM33-12,miR-191 and DAB2 in brain glioma cell CHG-5 and human normal brain glial epithelial cells HEB were detected by RT-PCR.The cultured CHG-5 cells were divided into the siRNA NC group,the circTRIM33-12 siRNA group,the DAB2 siRNA group;the mimics NC group,the miR-191 mimics group;the circTRIM33-12 WT+mimics NC group,the circTRIM33-12 WT+miR-191 mimics group,the circTRIM33-12 MUT+ mimics NC group,the circTRIM33-12 MUT+miR-191 mimics group;the inhibitor NC group,the miR-191 inhibitor group;the pcDNA+ mimics NC group,the pcDNA-TRIM33-12+mimics NC group,the pcDNA+miR-191 mimics group,the pcDNA-TRIM33-12+miR-191 mimics group;the DAB2 WT+mimics NC group,the DAB2 WT+miR-191mimis group,the DAB2 MUT+mimics NC group,the DAB2 MUT+ miR-191 mimis group.CCK-8 assay was used to detect the effects of the expressions of circTRIM33-12,miR-191 and DAB2 on the prolifera-tion ability of CHG-5 cells;flow cytometry was used to detect the effects of the expressions of circTRIM33-12,miR-191 and DAB2 on the apoptosis of CHG-5 cells;Western blot was used to detect the effects of the expressions of circTRIM33-12,miR-191 and DAB2 on EMT of CHG-5 cells.TargetScan database was used to analyze the correlations among miR-191,circTRIM33-12 and DAB2,and dual luciferase reporter gene assay was used to verify their relationships;RT-qPCR was used to detect the effect of circTRIM33-12 on DAB2 expression through miR-191.Results Compared with HEB cells,the expression of circTRIM33-12 in CHG-5 cells was down-regulated(P<0.01),the expression of miR-191 was up-regulated(P<0.01),and the expression of DAB2 was down-regulated(P<0.01).Compared with the siRNA NC group,the proliferation activity and N-cadherin expression of CHG-5 cells in the circTRIM33-12 siRNA group and the DAB2 siRNA group were significantly increased(P<0.01),while the apoptosis rate and E-cadherin expression were decreased(P<0.01).circTRIM33-12 targeted miR-191,and miR-191 targeted DAB2.Compared with the inhibitor NC group,the proliferation activity and N-cadherin expression of CHG-5 cells in the miR-191 inhibitor group were significantly decreased(P<0.01),while the apoptosis rate and E-cadherin expression were increased(P<0.01).circTRIM33-12 overexpression inhibited CHG-5 cell proliferation and EMT through miR-191.Conclusion circTRIM33-12 may regulate the proliferation,apoptosis and EMT of brain glioma cells through the miR-191/DAB2 axis.
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Objective To observe the value of a YOLOX target detection model for automatically identifying endovascular interventional instruments on images of digital subtract angiography(DSA).Methods DSA data of 37 patients who underwent abdominal endovascular interventional therapy were retrospectively analyzed.Totally 4 435 DSA images were captured and taken as data set,which were divided into training set(n=3 991)and verification set(n=444)at the ratio of 9∶1.Six kinds of endovascular interventional instruments were labeled.YOLOX algorithm was applied for deep learning of data in training set in order to build a target detection model,and the efficacy of the model for automatically identifying endovascular interventional instruments on DSA images was evaluated based on varification set.Results A total of 6 668 labels were put on 4 435 DSA images,aimed on Terumo 0.035in loach guide wire(n=587),Cook Lunderquist super hard guide wire(n=990),Optimed 5F with graduated pig tail catheter(n=1 680),Cordis MPA multi-functional catheter(n=667),Boston Scientific V-18 controllable guide wire(n=1 330)and Terumo 6F long sheath(n= 1 414),respectively.The training set contained 527,875,1 466,598,1 185 and 1 282,while the verification set contained 60,115,214,69,145 and 132 the above labels,respectively.The pixel accuracy of YOLOX target detection model for automatically identifying the above instruments in the verification set was 95.23%,97.32%,99.18%,98.97%,97.60%and 98.19%,respectively,with a mean pixel accuracy of 97.75%.Conclusion YOLOX target detection model could automatically identify endovascular interventional instruments on images of DSA.
摘要
Objective To explore the dynamic changes and mechanisms of neurological and cognitive functions in mice with traumatic brain injury (TBI). Methods Totally 60 12⁃month⁃old Balb/ c mice were divided into control group (10 in group) and TBI group (50 in group). TBT model mice were divided into 5 subgroups according to the time of model construction, including model 1 day, model 1 day, model 3 day, model 7 day, model 14 days and model 28 days group with 10 in each group. At the 29th day of the experiment, neurological scores and step down tests were carried out. After the test, the mice were sacrificed for brains which were detected by immunohistochemistry staining, inflammatory cytokine tests and Western blotting. Results Compared with the control group, the neurological scores of mice in TBI group increased, and then decreased after the 7th day when the scores reached the peak. However, the latency of step down errors was lower than control group, and the number of step down errors was higher than control group which had no changes. Compared with the control group, the expression of lonized calcium⁃binding adapter molecule 1(IBA1), chemokine C⁃X3⁃C⁃motif ligand1 (CX3CL1), C⁃X3⁃C chemokine receptor 1(CX3CR1), NOD⁃like receptor thermal protein domain associated protein 3 (NLRP3), and phosphorylation nuclear factor(p⁃NF)⁃κB in TBI group increased and reached to the peak at the 7th day, and then started to decrease. At the same time, the levels of inflammatory cytokines interleukin⁃6(IL⁃6) and tumor necrosis factor⁃α(TNF⁃α) first increased to the peak, and then began to decrease. However, compared with the control group, the expression of amyloid β(Aβ) protein and p⁃Tau protein in the model group continued to increase at all time. Conclusion The TBI model caused continuous activation of microglia along with inflammatory response, which first increased and then decreased, resultsing in neurological scores changes. In addition, the inflammatory response may act as a promoter of Aβ protein deposition and Tau protein phosphorylation, leading to cognitive impairment in mice.
摘要
Parkinson's disease (PD) is a chronic neurodegenerative disease. At present, levodopa and other drugs are mainly used for dopamine supplementation therapy. However, the absorption of levodopa in the gastrointestinal tract is unstable and its half-life is short, and long-term use of levodopa will lead to the end-of-dose deterioration, dyskinesia, the "ON-OFF" phenomenon and other symptoms. Therefore, new preparations need to be developed to improve drug efficacy, reduce side effects or improve compliance of patients. Based on the above clinical needs, this review briefly introduced the preparation modification strategies for the treatment of PD through case analysis, in order to provide references for the research and development of related preparations.
摘要
Combretum indicum can kill insects and benefit the spleen and stomach, which is the most important medicine to treat children's diseases. The classics of materia medica, calendar edition of Chinese Pharmacopoeia, local processing standards and related literature were reviewed to sort out the processing history of Combretum indicum, compare the ancient medicinal parts and processing methods, and summarize the inclusion in national and local standards. The history of the evolution of Combretum indicum was summarized in order to provide ideas for rational drug use in clinical and standard improvement.
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Hallux valgus is one of the common diseases in foot and ankle surgery, mainly manifested as hallux toe valgus, first metatarsal adduction and first metatarsophalangeal joint dislocation or subluxation, resulting in a series of pathological changes. There are more than 200 surgical methods, and osteotomy can only be performed empirically, which is a great challenge for most doctors. The physical model generated by 3D printing technology can intuitively see the specific shape of the patient′s heel toes, and can make better preoperative planning through the model, which provides a better choice and method for the surgical method of hallux valgus and the design of intraoperative guide plate. With the rapid development of minimally invasive technology, the treatment of hallux valgus has also been greatly improved. This article mainly reviews the diagnosis and treatment of hallux valgus and the application progress of 3D printing.
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Objective:To investigate the effect of narrow-band ultraviolet B (NB-UVB) phototherapy on the incidence of cutaneous carcinoma, herpes zoster and cataracts in patients with psoriasis vulgaris.Methods:A telephone follow-up was conducted among patients with psoriasis vulgaris receiving NB-UVB phototherapy at the Department of Dermatology, Peking Union Medical College Hospital from January 1, 2003 to December 31, 2019. The incidence of cutaneous carcinoma, herpes zoster and cataracts was investigated, and their incidence density and 95% confidence intervals ( CIs) were calculated. Subgroup analyses were performed according to the cumulative number of NB-UVB radiation (≤ 100 times, 101 - 300 times, > 300 times), cumulative radiation energy (≤ 100 J/cm 2, > 100 - 500 J/cm 2, > 500 J/cm 2), and average radiation frequency (≤ 1.5 times/week, > 1.5 times/week). Univariate Cox′s proportional hazards regression analysis was conducted to analyze differences in the incidence density of cutaneous carcinoma, herpes zoster, and cataracts between the groups, and the results were expressed as hazard ratios ( HRs) and their corresponding 95% CIs. Results:A total of 160 patients with psoriasis vulgaris completed the follow-up, including 99 males (61.9%) and 61 females (38.1%). Their ages (median [ Q1, Q3]) were 39 (28.3, 54.8) years, the cumulative numbers of NB-UVB radiation were 129.5 (52, 291) times, the cumulative radiation energy was 226.3 (71.1, 688.9) J/cm 2, and the average radiation frequencies were 1.57 (1.37, 1.83) times/week. No cutaneous carcinoma occurred during the follow-up of 1 288.87 person-years (7.77 [5.11, 9.92] years) ; herpes zoster occurred in 4 cases during the follow-up of 1 273.85 person-years (7.68 [5.11, 9.88] years), and the estimated incidence density of herpes zoster was 31.4/10 000 person-years (95% CI: [11.8 - 83.5]/10 000 person-years) ; cataracts occurred in 8 cases during the follow-up of 1 264.67 person-years (7.72 [4.84, 9.83] years), and the estimated incidence density of cataracts was 63.3/10 000 person-years (95% CI: [31.7 - 126.2]/10 000 person-years). No significant differences were observed in the incidence density of herpes zoster or cataracts among subgroups with different cumulative numbers of NB-UVB radiation, cumulative radiation energy and average radiation frequencies (all P > 0.05) . Conclusion:The incidence of herpes zoster or cataracts may not be affected by the cumulative number of NB-UVB radiation, cumulative radiation energy or average radiation frequency in patients with psoriasis vulgaris.
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After continuous efforts from generations of transplant surgeons, kidney transplantation (KT) has become an optimal treatment for end-stage renal disease.However, an imbalance between supply and demand of organs has always restricted the development of KT.For this clinical dilemma, xenotransplantation is expected to become one practical alternative for alleviating organ shortage.This review summarized recent literature reports of kidney xenotransplantation and the latest cases of pig-to-human kidney and heart transplantations.Also clinical transformations and applications of kidney xenotransplantation were discussed.
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Objective: To retrospectively analyse the efficacy of surgerical comprehensive treatment for hypopharyngeal cancer. Methods: Four hundred and fifty-six cases of hypopharyngeal squamous cell carcinoma treated from Jan 2014 to Dec 2019 were analyzed retrospectively, including 432 males and 24 females, aged 37-82 years old. There were 328 cases of pyriform sinus carcinoma, 88 cases of posterior pharyngeal wall carcinoma, and 40 cases of postcricoid carcinoma. According to American Joint Committe on Cancer(AJCC) 2018 criteria, 420 cases were of stage Ⅲ or Ⅳ; 325 cases were of T3 or T4 stage. Treatment methods included surgery alone in 84 cases, preoperative planned radiotherapy plus surgery in 49 cases, surgery plus adjuvant radiotherapy or concurrent chemoradiotherapy in 314 cases, and inductive chemotherapy plus surgery and adjuvant radiotherapy in 9 cases. The primary tumor resection methods included transoral laser surgery in 5 cases, partial laryngopharyngectomy in 74 cases, of them 48 cases (64.9%) presented with supracricoid hemilaryngopharyngectomy, total laryngectomy with patial pharyngectomy in 90 cases, total laryngopharyngectomy or with cervical esophagectomy in 226 cases, and total laryngopharyngectomy with total esophagectomy in 61 cases. Among 456 cases, 226 cases received reconstruction surgery with free jejunum transplantation, 61 cases with gastric pull-up, and 32 cases with pectoralis myocutaneous flaps. All patients underwent retropharyngeal lymph node dissection, and high-definition gastroscopy was performed during admission and follow-up. SPSS 24.0 software was used to analyze the data. Results: The 3-year and 5-year overall survival rates were respectively 59.8%, and 49.5%. The 3-year and 5-year disease specific survival rates were respectively 69.0% and 58.8%. Total metastasis rate of retropharyngeal lymph nodes was 12.7%. A total of 132 patients (28.9%) suffered from simultaneous and metachronous multiple primary carcinoma of the hypopharynx. Multivariate Logistic regression analysis showed that T3-4 disease, cervical lymph node metastasis, retropharyngeal lymph node metastasis and postoperative adjuvant radiotherapy were independent factors affecting the prognosis of patients (all P<0.05). As of April 30, 2022, a total of 221 patients died during follow-up, of 109 (49.3%) with distant metastases, which were the main cause of death. Conclusions: The efficacy of comprehensive treatment for hypopharyngeal cancer can be improved by accurate preoperative evaluation, improved surgical resection, active retropharyngeal lymph node dissection and full process intervention of the second primary cancer.
Subject(s)
Male , Female , Humans , Adult , Middle Aged , Aged , Aged, 80 and over , Hypopharyngeal Neoplasms/pathology , Carcinoma, Squamous Cell/pathology , Lymphatic Metastasis , Retrospective Studies , Neck Dissection/methods , Head and Neck Neoplasms/surgery摘要
Objective: To analyze the incidence and the related risk factors of retropharyngeal lymph node metastasis in patients with hypopharyngeal squamous cell carcinoma, evaluate the accuracy of preoperative enhanced CT in judging retropharyngeal lymph node metastasis, and investigate the impact of retropharyngeal lymph node metastasis on the prognosis. Methods: Retrospective analyses were made on 398 patients with hypopharyngeal squamous cell carcinoma who underwent surgery as the primary therapy and accepted retropharyngeal lymph node exploration and clearance during surgery in Shandong Provincial ENT Hospital from January 2014 to December 2019. Multivariate logistic regression analysis was used to clarify the related risk factors of retropharyngeal lymph node metastasis. Multivariate Cox regression analysis was used to investigate the impact of retropharyngeal lymph node metastasis on prognosis. The retropharyngeal lymph nodes of 218 cases with available preoperative enhanced CT images were evaluated by two experienced radiologists and compared with postoperative pathological results. Results: Retropharyngeal lymph node metastasis were confirmed in 54 of 398 (13.6%) cases according to postoperative pathology. The sensitivity and specificity of preoperative enhanced CT in the diagnosis of retropharyngeal lymph node metastasis were 34.6% and 91.1%, respectively, and the overall accuracy was 84.4%. Multivariate logistic regression analysis showed that the site of the primary lesion and pathological N stage were independent risk factors for retropharyngeal lymph node metastasis in hypopharyngeal squamous cell carcinoma. Patients with primary lesion located in the posterior wall of hypopharynx (OR=4.83, 95% CI: 1.27-18.40), N2 stage (OR=6.30, 95% CI: 2.25-17.67), and N3 stage (OR=26.89, 95% CI: 5.76-125.58) were prone to retropharyngeal lymph node metastasis. The 5-year overall survival rate of the 398 patients was 50.4%, and the 5-year disease-free survival rate was 48.3%. Multivariate Cox regression analysis showed that T stage, N stage, retropharyngeal lymph node metastasis, and radiotherapy were independent influencing factors for overall survival (T stage: HR=1.28, 95% CI: 1.06-1.54; N stage: HR=1.26, 95% CI: 1.14-1.40; retropharyngeal lymph node metastasis: HR=2.13, 95% CI: 1.47-3.08; radiotherapy: HR=0.54, 95% CI: 0.38-0.76) and disease-free survival of patients with hypopharyngeal squamous cell carcinoma (T stage: HR=1.26, 95% CI: 1.06-1.51; N stage: HR=1.25, 95% CI: 1.13-1.37; retropharyngeal lymph node metastasis: HR=2.24, 95% CI: 1.56-3.21; radiotherapy: HR=0.55, 95% CI: 0.40-0.77). Conclusions: Metastasis of retropharyngeal lymph nodes in hypopharyngeal squamous cell carcinoma is not rare. Enhanced CT is of low accuracy and limited value in diagnosing retropharyngeal lymph node metastasis. Primary lesions located in the posterior wall of the hypopharyngx, N2 stage, and N3 stage are independent high-risk factors for retropharyngeal lymph node metastasis. The prognosis of hypopharyngeal cancer patients with retropharyngeal lymph node metastasis is worse, and active surgical exploration and clearance can effectively reduce the mortality caused by retropharyngeal lymph node metastasis.
Subject(s)
Humans , Squamous Cell Carcinoma of Head and Neck/pathology , Lymphatic Metastasis/pathology , Retrospective Studies , Carcinoma, Squamous Cell/surgery , Lymph Nodes/pathology , Hypopharyngeal Neoplasms/surgery , Prognosis , Head and Neck Neoplasms/pathology , Neoplasm Staging摘要
Objective: To retrospectively analyze the risk factors of anastomotic leakage in the neck after esophageal cancer and establish a nomogram prediction model that can accurately predict the occurrence of anastomotic leakage in the neck of the patient. Methods: The study retrospectively analyzed 702 patients who underwent radical esophageal cancer surgery between January 2010 and May 2015 at Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College. A multivariate logistic regression model was used to determine the risk factors for neck anastomotic leak, and a nomogram model was constructed, internal validation methods were used to evaluate and verify the predictive effectiveness of the nomogram. Results: There were 702 patients in the whole group, 492 in the training group and 210 in the validation group. The incidence of postoperative cervical anastomotic leak was 16.1% (79/492) in 492 patients with esophageal cancer in the training group. Multifactorial analysis revealed calcification of the descending aorta (OR=2.12, 95% CI: 1.14, 3.94, P=0.018), calcification of the celiac artery (OR=2.29, 95% CI: 1.13, 4.64, P=0.022), peripheral vascular disease (OR=5.50, 95% CI: 1.64, 18.40, P=0.006), postoperative ventilator-assisted breathing (OR=5.33, 95% CI: 1.83, 15.56, P=0.002), pleural effusion or septic chest (OR=3.08, 95% CI: 1.11, 8.55, P=0.031), incisional fat liquefaction and infection (OR=3.49, 95% CI: 1.68, 7.27, P=0.001) were independent risk factors for the development of cervical anastomotic leak after esophageal cancer surgery. The results of the nomogram prediction model showed that the consistency indices of the training and external validation groups were 0.73 and 0.74, respectively (P<0.001), suggesting that the prediction model has good predictive efficacy. Conclusion: The nomogram prediction model can intuitively predict the incidence of postoperative cervical anastomotic leakage in patients with high prediction accuracy, which can help provide a clinical basis for preventing cervical anastomotic leak and individualized treatment of patients.
Subject(s)
Humans , Anastomotic Leak/etiology , Nomograms , Retrospective Studies , Esophageal Neoplasms/surgery , Esophagectomy/methods , Risk Factors , Anastomosis, Surgical/adverse effects摘要
Objective: To analyze the incidence and the related risk factors of retropharyngeal lymph node metastasis in patients with hypopharyngeal squamous cell carcinoma, evaluate the accuracy of preoperative enhanced CT in judging retropharyngeal lymph node metastasis, and investigate the impact of retropharyngeal lymph node metastasis on the prognosis. Methods: Retrospective analyses were made on 398 patients with hypopharyngeal squamous cell carcinoma who underwent surgery as the primary therapy and accepted retropharyngeal lymph node exploration and clearance during surgery in Shandong Provincial ENT Hospital from January 2014 to December 2019. Multivariate logistic regression analysis was used to clarify the related risk factors of retropharyngeal lymph node metastasis. Multivariate Cox regression analysis was used to investigate the impact of retropharyngeal lymph node metastasis on prognosis. The retropharyngeal lymph nodes of 218 cases with available preoperative enhanced CT images were evaluated by two experienced radiologists and compared with postoperative pathological results. Results: Retropharyngeal lymph node metastasis were confirmed in 54 of 398 (13.6%) cases according to postoperative pathology. The sensitivity and specificity of preoperative enhanced CT in the diagnosis of retropharyngeal lymph node metastasis were 34.6% and 91.1%, respectively, and the overall accuracy was 84.4%. Multivariate logistic regression analysis showed that the site of the primary lesion and pathological N stage were independent risk factors for retropharyngeal lymph node metastasis in hypopharyngeal squamous cell carcinoma. Patients with primary lesion located in the posterior wall of hypopharynx (OR=4.83, 95% CI: 1.27-18.40), N2 stage (OR=6.30, 95% CI: 2.25-17.67), and N3 stage (OR=26.89, 95% CI: 5.76-125.58) were prone to retropharyngeal lymph node metastasis. The 5-year overall survival rate of the 398 patients was 50.4%, and the 5-year disease-free survival rate was 48.3%. Multivariate Cox regression analysis showed that T stage, N stage, retropharyngeal lymph node metastasis, and radiotherapy were independent influencing factors for overall survival (T stage: HR=1.28, 95% CI: 1.06-1.54; N stage: HR=1.26, 95% CI: 1.14-1.40; retropharyngeal lymph node metastasis: HR=2.13, 95% CI: 1.47-3.08; radiotherapy: HR=0.54, 95% CI: 0.38-0.76) and disease-free survival of patients with hypopharyngeal squamous cell carcinoma (T stage: HR=1.26, 95% CI: 1.06-1.51; N stage: HR=1.25, 95% CI: 1.13-1.37; retropharyngeal lymph node metastasis: HR=2.24, 95% CI: 1.56-3.21; radiotherapy: HR=0.55, 95% CI: 0.40-0.77). Conclusions: Metastasis of retropharyngeal lymph nodes in hypopharyngeal squamous cell carcinoma is not rare. Enhanced CT is of low accuracy and limited value in diagnosing retropharyngeal lymph node metastasis. Primary lesions located in the posterior wall of the hypopharyngx, N2 stage, and N3 stage are independent high-risk factors for retropharyngeal lymph node metastasis. The prognosis of hypopharyngeal cancer patients with retropharyngeal lymph node metastasis is worse, and active surgical exploration and clearance can effectively reduce the mortality caused by retropharyngeal lymph node metastasis.
Subject(s)
Humans , Squamous Cell Carcinoma of Head and Neck/pathology , Lymphatic Metastasis/pathology , Retrospective Studies , Carcinoma, Squamous Cell/surgery , Lymph Nodes/pathology , Hypopharyngeal Neoplasms/surgery , Prognosis , Head and Neck Neoplasms/pathology , Neoplasm Staging摘要
Objective: To retrospectively analyze the risk factors of anastomotic leakage in the neck after esophageal cancer and establish a nomogram prediction model that can accurately predict the occurrence of anastomotic leakage in the neck of the patient. Methods: The study retrospectively analyzed 702 patients who underwent radical esophageal cancer surgery between January 2010 and May 2015 at Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College. A multivariate logistic regression model was used to determine the risk factors for neck anastomotic leak, and a nomogram model was constructed, internal validation methods were used to evaluate and verify the predictive effectiveness of the nomogram. Results: There were 702 patients in the whole group, 492 in the training group and 210 in the validation group. The incidence of postoperative cervical anastomotic leak was 16.1% (79/492) in 492 patients with esophageal cancer in the training group. Multifactorial analysis revealed calcification of the descending aorta (OR=2.12, 95% CI: 1.14, 3.94, P=0.018), calcification of the celiac artery (OR=2.29, 95% CI: 1.13, 4.64, P=0.022), peripheral vascular disease (OR=5.50, 95% CI: 1.64, 18.40, P=0.006), postoperative ventilator-assisted breathing (OR=5.33, 95% CI: 1.83, 15.56, P=0.002), pleural effusion or septic chest (OR=3.08, 95% CI: 1.11, 8.55, P=0.031), incisional fat liquefaction and infection (OR=3.49, 95% CI: 1.68, 7.27, P=0.001) were independent risk factors for the development of cervical anastomotic leak after esophageal cancer surgery. The results of the nomogram prediction model showed that the consistency indices of the training and external validation groups were 0.73 and 0.74, respectively (P<0.001), suggesting that the prediction model has good predictive efficacy. Conclusion: The nomogram prediction model can intuitively predict the incidence of postoperative cervical anastomotic leakage in patients with high prediction accuracy, which can help provide a clinical basis for preventing cervical anastomotic leak and individualized treatment of patients.
Subject(s)
Humans , Anastomotic Leak/etiology , Nomograms , Retrospective Studies , Esophageal Neoplasms/surgery , Esophagectomy/methods , Risk Factors , Anastomosis, Surgical/adverse effects摘要
This paper summaries the Risk of Bias in Non-randomized Studies-of Environmental Exposure (ROBINS-E), a tool for evaluating risk of bias about non-randomized studies of exposures (NRSE), and introduces the application of ROBINS-E in a published NRSE. According to the characteristics of NRSE, evaluation fields and signaling questions were designed in ROBINS-E to provide essential information about risk of bias for NRSE included in systematic reviews and GRADE. ROBINS-E is the tool in assessment of risk of bias in observational studies and quasi-randomized studies. Although the tool has been used in practice to some extent, but it still needs further improvement. Attention should be paid to its update and progress.
Subject(s)
Humans , Bias , Environmental Exposure , Systematic Reviews as Topic摘要
Objective:To compare the inhibitory effect of human CD55(hCD55)expressed on porcine peripheral blood mononuclear cells(PBMC)on rabbit complement-and human complement-dependent cytotoxicity(CDC).Methods:Three α1, 3-galactosyltransferase gene knockout(GTKO)pigs from the same strain were selected.Two were transferred with hCD55 gene.According to the expression level of hCD55, the animals were divided into three groups of GTKO, GTKO/hCD55 Low(low-expression of hCD55)and GTKO/hCD55 High(high-expression of hCD55). After PBMC from these pigs were incubated with complement-inactivated pooled human serum(20 cases), rabbit complement-or human complement-dependent cytotoxicity and binding of antibodies(IgM/G)to pig PBMC were detected by flow cytometry. Results:No significant difference existed in binding of human serum xenoreactive antibodies to PBMC from three groups.The cytotoxicity to GTKO pig PBMC mediated by rabbit complement or human complement were 98.97%±0.50% and 82.73%±3.20% respectively.Both values were quite high.Compared with GTKO group, a low expression of hCD55 had no significant inhibitory effect on rabbit complement-dependent cytotoxicity(97.07%±2.25% vs. 98.9%±0.50%, P=0.2 267) while a high expression of hCD55 exerted a mild inhibitory effect on rabbit complement-dependent cytotoxicity(81.70%±5.86% vs. 98.9%±0.50%, P=0.0 355). Differently, a low expression of hCD55 had a potent inhibitory effect on human complement-dependent cytotoxicity(23.83%±3.53% vs. 82.73%±3.20%, P<0.0 001). Compared with hCD55 low-expression group, a high expression of hCD55 had a further inhibitory effect on human complement-dependent cytotoxicity(2.79%±0.45% vs. 82.73%±3.20%, P=0.009), attaining the level of negative control group.The inhibitory effect of low/high expression of hCD55 on human complement-mediated CDC was significantly better than that on rabbit complement-mediated CDC. Conclusions:Compared with traditional CDC counterpart using rabbit complement, modified CDC technology of commercial standard human complement is recommended for evaluating the regulatory effect of hCD55 expressed on cell surface from GTKO/hCD55 genetically engineered pigs.It thus provides experimental rationales for establishing a novel CDC experimental system of effectively evaluate the function of hCD55 after xenotransplantation.
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Liver transplantation is one of the best approaches for the treatment of hepatocellular carcinoma. The concept of transplant oncology could shed light on the whole process management of hepatocellular carcinoma patients. The success rate of operation and perioperative safety were the major concerns in the past, whereas the focus of treatment is gradually shifting to cancer treatment and improving patient survival and quality of life, with the promotion of neoadjuvant and postoperative adjuvant therapy for hepatocellular carcinoma. The prognosis of different group of patients might be heterogeneous. Therefore, refined stratification should be carried out for heterogeneous patients before and after liver transplantation to achieve the best prognosis. The present study classified patients for three clusters: primary hepatocellular carcinoma patients within the transplant criteria, hepatocellular carcinoma recurrence after liver resection, and patients after down-staging or neoadjuvant therapy. Fine stratified management are essential for the whole process management in the new era of transplant oncology.
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Objective:To investigate the differences of psychological condition of erectile dysfunction (ED) patients in different age groups.Methods:The emotion, personality and interpersonal relationship outpatients with ED were evaluated by the method of Symptom Checklist-90 (SCL-90), State Trait Anxiety Inventory (STAI) and Eysenck Personality Questionnaire (EPQ). A retrospective analysis was conducted and a total of 401 ED patients (aged 20-60) were divided into 4 groups [20-29(n=158), 30-39(n=182), 40-49(n=38), 50-60 (n=23)years old] from July 2018 to July 2019. The erectile function of the patients was evaluated by the international erectile function scale (IIEF-5). The symptoms of hostility, anxiety, psychotic, horrible, paranoid, obsession, somatization, interpersonal relationship and depression were evaluated by SCL-90. Furthermore, STAI was used to distinguish whether the patients had state or trait anxiety. Then EPQ was used to analyze the personality types of patients. The differences of SCL-90, STAI and EPQ between the patients and the national norm group were analyzed by the two sample t-test. The variance analysis was conducted to compare the score differences of scales among different age groups of ED patients. The chi square test was conducted to compare the distribution differences of personality types among different age groups. Results:The scores of hostility(1.64±0.67, t=4.81, P<0.001), anxiety(1.58±0.66, t=6.83, P<0.001), psychotic(1.62±0.68, t=11.87, P<0.001), paranoid(1.55±0.66, t=3.58, P=0.0004), obsession(1.95±0.70, t=9.56, P<0.001), somatization(1.43±0.58, t=2.10, P=0.036), interpersonal relationship(1.74±0.74, t=2.79, P=0.005), depression (1.66±0.74, t=4.50, P<0.001)and the total scores (1.53±0.63, t=3.07, P=0.002)of SCL-90 in the patient group were significantly higher than those of the national norm group, and there were significant differences in the scores of interpersonal relationship among different age groups(1.72±0.78, 1.65±0.69, 1.58±0.92, 1.43±0.59, F=2.84, P=0.038). The scores of state anxiety( t=7.35, P<0.001), trait anxiety ( t=6.31, P<0.001)and the total scores ( t=8.41, P<0.001)of STAI in the patient group were significantly higher than those of the national norm, and there were significant differences in the scores of state anxiety( F=5.29, P=0.001), trait anxiety ( F=5.54, P<0.001)and total scores ( F=5.66, P<0.001)among different age groups. There were significant increases in the scores of psychoticism( t=30.56, P<0.001), emotion( t=45.94, P<0.001), extraversion and introversion( t=11.72, P<0.001), concealment factors ( t=29.16, P<0.001)and total scores ( t=30.56, P<0.001)in the patient group. The proportion of depressive personality was highest in the ED patients(n=183; 45.64%), but there was no significant difference in the distribution of personality types among different age groups[20-29(depressive, choleric, mucinous and sanguine): 76, 35, 26, 21; 30-39: 87, 40, 32, 23; 40-49: 14, 10, 6, 8; 50-60: 6, 9, 2, 6; χ 2=10.65, P=0.30]. Conclusions:ED patients have a series of abnormal emotions, somatized discomfort, sensitive interpersonal relationships, introverted and unstable emotionally personality characteristics. In addition, the younger the patients are, the more serious their anxiety are, the more sensitive their interpersonal relationships are, which may be related to their introverted personality characteristics and emotional instability.
摘要
Objective:To establish a new fast and accurate method for identifying the authenticity and specifications of Fritillariae Cirrhosae Bulbus based on electronic nose technology， and to discuss the feasibility of this technology in the identification of decoction pieces. Method:Fritillariae Cirrhosae Bulbus was used as the research object， 80 batches of samples to be tested were collected， and the olfactory sensory data of the electronic nose were taken as independent variables （<italic>X</italic>）， the results of the method contained in the 2020 edition of <italic>Chinese Pharmacopoeia</italic> were taken as the focus， and the traditional empirical identification results were used as benchmarking information （<italic>Y</italic>）. Four chemometric methods， including discriminant analysis （DA）， least square support vector machine （LS-SVM）， principal component analysis-DA （PCA-DA） and partial least squares-DA （PLS-DA）， were used to establish the identification model ［<italic>Y</italic>=<italic>F</italic>（<italic>X</italic>）］ of authenticity and commodity specifications of Fritillariae Cirrhosae Bulbus， respectively. Wherein， the identification accuracy and time-consuming was taken as indicators to discuss the results. Result:After cross-verification by leave-one-out method， the correct rates of the above four models were 93.75%， 91.25%， 95.00% and 95.00%， respectively， and the PCA-DA and PLS-DA identification models were the best in terms of authenticity identification. In specification identification， the correct rates of these four models were 86.67%， 88.00%， 89.33% and 68.00%， respectively， and the PCA-DA identification model was the best. The electronic nose had a high accuracy in the identification of authenticity and specification model， and the time consuming was relatively short. Conclusion:Electronic nose technology can identify Fritillariae Cirrhosae Bulbus accurately and quickly， and has significant advantages in terms of timeliness and correct judgment rate.
摘要
The fruits of Eucalyptus globulus Labill. are known to have a plenty of medicinal properties, such as anti-tumor, anti-inflammatory, and immunosuppressive activity. Our previous study found that the phloroglucinol-sesquiterpene adducts in the fruits of E. globulus were immunosuppressive active constituents, especially Eucalyptin C (EuC). Phosphoinositide 3-kinases-γ (PI3Kγ) plays a pivotal role in T cell mediated excessive immune responses. In this study, EuC was first discovered to be a novel selective PI3Kγ inhibitor with an IC
Subject(s)
Animals , Mice , Eucalyptus , Flavonoids , Fruit , Molecular Docking Simulation , Phosphoinositide-3 Kinase Inhibitors摘要
Objective:To investigate the intervention effect of ventricular zone expressed PH domain-containing 1 (VEPH1) on epithelial mesenchymal transition (EMT) and proliferation of human cutaneous melanoma (CM) cells based onthe transforming growth factor-β (TGF-β) signaling pathway.Methods:The melanoma cells were cultured in vitro. After transfecting the melanoma cells with overexpression or interference plasmids of VEPH1 or TGF-β overexpression plasmids, or treating the cells with SB-431542 (TGF-β pathway inhibitor), we detected the expression of genes and proteins relevant to VEPH1, TGF-β, and EMT by quantitative reverse transcription polymerase chain reaction (qRT-PCR) and Western blot to observe the effect of these proteins on CM cell proliferation. Results:qRT-PCR results showed that the expression of VEPH1 in melanoma cells (B16-BL6, B16 and A375 cells) was significantly lower than that in HaCaT cells, and the lowest expression was found in A375 cells, so A375 cells were selected for follow-up experiments. After transfection with VEPH1 overexpression plasmid or SB-431542, the mRNA and protein expression of E-cadherin in A375 cells were significantly increased, the mRNA and protein expressions of TGF-β, Smad4, N-cadherin and vimentin were significantly decreased, and the cell proliferation was significantly decreased ( P<0.05). Compared with the VEPH1 vector group, the expression of TGF-β, Smad4 and N-cadherin in the VEPH1 vector+ SB-431542 group was significantly reduced ( P<0.05); the expression of E-cadherin was increased, and the cell proliferation was also significantly decreased ( P<0.05). The expression of TGF-β, Smad4, N-cadherin and vimentin were increased after co-transfection with VEPH1 vector, while the expression of E-cadherin was decreased, and the cell proliferation was also enhanced ( P<0.05). The expression of VEPH1 in A375 cells was significantly decreased after transfection with si-VEPH1 plasmid, while that in SB-431542 and TGF-β vector group was not significantly decreased. Conclusions:VEPH1 can inhibit human CM cells by the intervention on TGF-β signaling pathway. This study reveals the potential of VEPH1 as a diagnostic, prognostic and therapeutic target for CM.