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1.
Chinese Journal of Radiology ; (12): 638-643, 2021.
Article in Chinese | WPRIM | ID: wpr-884459

ABSTRACT

Objective:To explore the feasibility of using Double FLASH coronary CTA (CCTA) to evaluate myocardial blood perfusion based on the original Patlak Plots.Methods:A total of 50 subjects with non-ischemic heart disease were prospectively included in the study who received dynamic myocardial CT perfusion (CTP) and Double FLASH CTA scans in General Hospital of Tianjin Medical University from January 2018 to January 2020 due to coronary heart disease or suspected coronary heart disease. The age of the enrolled patients was at least 18 years old and there was no moderate or above stenosis on CTA. The dynamic CTP images were analyzed by using CTP analysis software on FRONTIER platform to calculate the CTP derived MBF (MBF CTP). While the CTA derived MBF (MBF CTA) was calculated from the CT attenuation values of both aorta and myocardium segments on two scanning time set of Double FLASH CTA which were measured by two independent radiologists. Pearson correlation and Bland-Altman analysis were used to compare the results of MBF CTP and MBF CTA. Results:There was a strong linear correlation between MBF CTP and MBF CTA measurements. In the mid anteroseptal level: MBF CTA=0.936MBF CTP-11.999, r2=0.600, P<0.01. In the mid anterolateral level: MBF CTA=1.010MBF CTP-9.206, r2=0.448, P<0.01. In the apex: MBF CTA=0.822MBF CTP+16.904, r2=0.375, P<0.01. Bland-Altman analysis also showed there were no significant differences between MBF CTP and MBF CTA measurements. Compared with dynamic CTP scan, Double FLASH CTA mode significantly reduced the radiation dose [(4.33±1.89) mSv vs. (1.38±0.19) mSv, t=4.378, P=0.030]. Conclusions:This study validated the feasibility and accuracy of the MBF CTA measurement based on the theory of Patlak Plots only using Double FLASH CTA images. This method might have the potential to expand the clinical application of one-stop CTP examination for simultaneously evaluating coronary artery and myocardial ischemia in the clinic.

2.
Article in Chinese | WPRIM | ID: wpr-883627

ABSTRACT

In this study, a new model of "Internet + PACD (namely, theoretical presentation, assimilatin, clinicopathological diagnosis and discussion)" was put forward in the online and offline course construction of surgical diagnostic pathology. and the teaching effect of this teaching model was evaluated through the performance evaluation and questionnaire survey. The results showed that the teaching model of "Internet + PACD" could not only significantly improve the performance of professional courses of students majoring in pathology, but also enhance their learning interest, confidence, competition and cooperation consciousness, which has been affirmed and recognized by students.

3.
Article in Chinese | WPRIM | ID: wpr-883299

ABSTRACT

Age-related macular degeneration (AMD) is the mainirreversible blinding eye disease in the elderly.Its main pathogenic factors include age, genetic variation and lifestyle, but the specific pathogenesis has not been fully elucidated.As an emerging research method, proteomics technology has been gradually applied in the field of ophthalmology in recent years.A large number of studies about proteomic analysis of blood, tears, aqueous humor, vitreous humor, retina and choroid, drusen and RPE cell samples from AMD patients have been carried out to screen AMD biomarkers and explore the mechanism of AMD.These results can not only help us to make a more accurate diagnosis of AMD, but also play a guiding role in the selection of treatment targets and prognosis.

4.
Journal of Clinical Hepatology ; (12): 2636-2641, 2021.
Article in Chinese | WPRIM | ID: wpr-905007

ABSTRACT

Objective To investigate the clinical effect of two-step percutaneous transhepatic choledochoscopic lithotomy (PTCSL) in the treatment of complex hepatolithiasis. Methods A retrospective analysis was performed for the clinical data of 118 patients with complex hepatolithiasis who were admitted to 3201 Hospital of Xi'an Jiaotong University Health Science Center from January 2018 to June 2020, and according to the surgical procedure, they were divided into PTCSL group with 60 patients and surgery group with 58 patients. All patients were followed up for half a year to 3 years via telephone and outpatient service. The two groups were compared in terms of general information, perioperative indicators (including time of operation, intraoperative blood loss, incision length, time to first flatus and time to first defecation after surgery, time to extraction of abdominal drainage tube, and length of hospital stay), changes in liver function and inflammatory indicators, postoperative complications (bile leakage, acute cholangitis, wound infection, and venous thrombosis of lower extremities), stone clearance rate and recurrence rate, and quality of life. The two-independent-samples t -test was used for comparison of continuous data between two groups; the paired t -test was used for comparison between different periods of time within group; the chi-square test was used for comparison of categorical data between two groups. Results Compared with the surgery group, the PTCSL group had significantly shorter time of operation, time to first flatus and time to first defecation after surgery, and time to extraction of abdominal drainage tube, a significantly lower intraoperative blood loss, and a significantly shorter incision length (all P < 0.05). On day 1 after surgery, both groups had significant reductions in alanine aminotransferase (ALT) and aspartate aminotransferase (AST) ( P < 0.05) and a significant increase in white blood cell count (WBC) ( P < 0.05), and the PTCSL group had significantly lower levels of ALT, AST, and WBC than the surgery group (all P < 0.05). Compared with the surgery group, the PTCSL group had significantly lower incidence rates of postoperative bile leakage (5.0% vs 17.2%, P < 0.05), acute cholangitis (3.3% vs 13.8%, P < 0.05), wound infection (1.7% vs 10.3%, P < 0.05), and venous thrombosis of lower extremities (1.7% vs 12.1%, P < 0.05). Compared with the surgery group, the PTCSL group had a significantly higher stone clearance rate (58.3% vs 37.9%, P < 0.05) and a significantly lower long-term stone recurrence rate (10.0% vs 20.7%, P < 0.05). The PTCSL group had significantly higher quality of life scores than the surgery group (all P < 0.05). Conclusion For the treatment of complex hepatolithiasis, two-step PTCSL can effectively remove stones, with the advantages of fast postoperative recovery, low recurrence rate and incidence rate of complications, and high quality of life, and therefore, it is an effective alternative surgical procedure.

5.
Journal of Clinical Hepatology ; (12): 2622-2625, 2021.
Article in Chinese | WPRIM | ID: wpr-905004

ABSTRACT

Objective To investigate the clinical effect of percutaneous transhepatic drainage combined with sequential percutaneous nephroscopy for necrosectomy and drainage in the treatment of refractory liver abscess after transcatheter arterial embolization (TACE). Methods A retrospective analysis was performed for three patients with refractory liver abscess after TACE in The Affiliated 3201 Hospital of Xi'an Jiaotong University School of Medicine from January 2018 to December 2020, and among the three patients, one had the formation of liver abscess after TACE for hepatic metastases after pancreaticoduodenectomy, one had liver abscess after repeated TACE for massive hepatocellular carcinoma, and one had secondary liver abscess after TACE for traumatic hepatic rupture. All three patients received percutaneous transhepatic drainage and sequential percutaneous nephroscopy for the treatment of refractory liver abscess, and their specific treatment process was summarized. Results All three patients were diagnosed with refractory liver abscess based on CT, routine blood test, procalcitonin, blood culture, and clinical manifestation. Percutaneous transhepatic catheterization under the guidance of conventional ultrasonography or CT and effective antibiotics had an unsatisfactory therapeutic effect, and after sequential percutaneous nephroscopy was performed for necrosectomy and drainage, liver abscess was cured and the patients had good prognosis. Conclusion For refractory liver abscess after TACE, when routine puncture treatment has an unsatisfactory therapeutic effect or a patient cannot tolerate surgical operation, percutaneous transhepatic drainage combined with sequential percutaneous nephroscopy is safe and effective in the treatment of refractory liver abscess.

6.
Article in English | WPRIM | ID: wpr-903960

ABSTRACT

Neonatal hypoxia/ischemia (H/I), injures white matter, results in neuronal loss, disturbs myelin formation, and neural network development. Neuroinflammation and oxidative stress have been reported in neonatal hypoxic brain injuries. We investigated whether Paeoniflorin treatment reduced H/I-induced inflammation and oxidative stress and improved white matter integrity in a neonatal rodent model. Seven-day old Sprague?Dawley pups were exposed to H/I. Paeoniflorin (6.25, 12.5, or 25 mg/kg body weight) was administered every day via oral gavage from postpartum day 3 (P3) to P14, and an hour before induction of H/I. Pups were sacrificed 24 h (P8) and 72 h (P10) following H/I. Paeoniflorin reduced the apoptosis of neurons and attenuated cerebral infarct volume. Elevated expression of cleaved caspase-3 and Bad were regulated. Paeoniflorin decreased oxidative stress by lowering levels of malondialdehyde and reactive oxygen species generation and while, and it enhanced glutathione content. Microglial activation and the TLR4/NF-κB signaling were significantly down-regulated. The degree of inflammatory mediators (interleukin 1β and tumor necrosis factor-α) were reduced. Paeoniflorin markedly prevented white matter injury via improving expression of myelin binding protein and increasing O1-positive olidgodendrocyte and O4-positive oligodendrocyte counts. The present investigation demonstrates the potent protective efficiency of paeoniflorin supplementation against H/I-induced brain injury by effectually preventing neuronal loss, microglial activation, and white matter injury via reducing oxidative stress and inflammatory pathways.

7.
Article in English | WPRIM | ID: wpr-891401

ABSTRACT

Background@#and Purpose Brainstem gliomas (BSGs) in adults are rare brain tumors with dismal outcomes. The aim of this study was to determine the clinical and genetic features in a series of BSGs and their association with the prognosis. @*Methods@#Fifty patients who underwent a stereotactic biopsy between January 2016 and April 2018 at a single institution were collected. Data on clinicopathological characteristics were analyzed and factors associated with patient survival were identified using a Cox regression model. @*Results@#The median age at diagnosis was 55.5 years, and 62% of the patients were male. Glioblastoma (44%) accounted for the largest proportion of BSGs, and oligodendroglioma (2 of 50) was rarely encountered. The IDH mutation (6 of 44) occurred infrequently in astrocytomas, and IDH-mutant tumors harbored both ATRX loss and MGMT promoter methylation at a relatively low level. Wild-type IDH astrocytomas were identified as having high rates of 1p/19q codeletion (5 of 38) and loss of heterozygosity 1p (8 of 38) or 19q (8 of 38) only. In diffuse midline glioma H3K27M mutant, MGMT promoter methylation occurred in three of four cases. Patients were offered radiotherapy and/or concurrent/adjuvant temozolomide chemotherapy, and their median survival time was 13 months. Multivariate analysis revealed that a low tumor grade, absence of tumor enhancement, duration of symptoms ≥3 months, Karnofsky performance status ≥70, and ATRX loss conferred a survival advantage. @*Conclusions@#Adult BSGs showed different molecular genetic characteristics, but also resembled supratentorial gliomas in their clinical features associated with oncological outcomes.

8.
Organ Transplantation ; (6): 96-2021.
Article in Chinese | WPRIM | ID: wpr-862782

ABSTRACT

Objective To evaluate the diagnostic value of quantitative detection of cytomegalovirus (CMV) DNA from different sources [plasma, sputum and bronchoalveolar lavage fluid(BALF)] for CMV pneumonia after allogeneic hematopoietic stem cell transplantation. Methods Clinical data of 405 recipients undergoing allogeneic hematopoietic stem cell transplantation were retrospectively analyzed. Among them, 19 recipients diagnosed with CMV pneumonia were assigned into the CMV pneumonia group, and 229 recipients with CMV viremia alone, 11 recipients without CMV pneumonia who received fiberoptic bronchoscopy and 16 recipients diagnosed with bacterial or fungal pneumonia based on pathogenic evidence receiving sputum culture were assigned into the control A, B and C groups, respectively. The incidence of CMV pneumonia was summarized. The CMV DNA load of specimens from different sources (plasma, sputum and BALF) of recipients with CMV pneumonia was analyzed. The clinical prognosis of recipients with CMV pneumonia was evaluated. Results Among 405 recipients undergoing allogeneic hematopoietic stem cell transplantation, 19 cases developed CMV pneumonia, and the overall incidence of CMV pneumonia was 4.7%(19/405). The CMV DNA load in the plasma, sputum and BALF of recipients with CMV pneumonia was higher than those in the control A, B and C groups (all P < 0.05). In the 19 recipients, 12 cases were cured after antiviral treatment and 7 died from treatment failure(3 cases abandoned treatment). The fatality was 37%(7/19). Conclusions Quantitative detection of CMV DNA in the plasma, sputum and BALF may increase the diagnostic rate of CMV pneumonia, thereby improving clinical prognosis of recipients undergoing allogeneic hematopoietic stem cell transplantation.

9.
Article in English | WPRIM | ID: wpr-914650

ABSTRACT

Background and Objectives@#With the growing incidence of acute myocardial infarction (MI), angiogenesis is vital for cardiac function post-MI. The role of bone marrow mesenchymal stem cells (BMSCs) in angiogenesis has been previously confirmed. Irisin is considered a potential vector for angiogenesis. The objective of the present study was to investigate the potential role of irisin in the angiogenesis of BMSCs. @*Methods@#and Results: In vivo, irisin-treated BMSCs (BMSCs+irisin) were transplanted into an MI mouse model. On day 28 post-MI, blood vessel markers were detected, and cardiac function and infarct areas of mice were evaluated. In vitro, paracrine effects were assessed by examining tube formation in human umbilical vein endothelial cells (HUVECs) co-cultured with the BMSCs+irisin supernatant. The scratch wound-healing assay was performed to evaluate HUVEC migration. Western blotting was performed to determine PI3k/Akt pathway activation in the BMSCs+irisin group. Transplantation of BMSCs+irisin promoted greater angiogenesis, resulting in better cardiac function in the MI mouse model than in controls. In the BMSC+irisin group, HUVECs demonstrated enhanced tube formation and migration. Activation of the PI3k/Akt pathway was found to be involved in mediating the role of irisin in the angiogenesis of BMSCs. @*Conclusions@#In cardiovascular diseases such as MI, irisin administration can enhance angiogenesis of BMSCs and pro-mote cardiac function via the PI3k/Akt pathway, optimizing the therapeutic effect based on BMSCs transplantation.

10.
Article in Chinese | WPRIM | ID: wpr-912496

ABSTRACT

Objective:We aimed to explore a colorectal cancer risk prediction model through machine learning algorithm based on the big data in laboratory medicine.Methods:According to the labeling of colonoscopy combined with pathology or referring to the ICD-10 code, the colonoscopy patients in Shanghai Changhai Hospital from 2013.1.1 to 2019.6.30 and the outpatients and inpatients from 2010.1.1 to 2019.6.30 were divided into colorectal cancer groups and non-colorectal cancer group. Four machine learning algorithms, Extreme gradient boosting(Xgboost),Artificial Neural Network(ANN),Support Vector Machine(SVM),Random Forest(RF), are used to mine all routine laboratory test item data of the enrolled patients, select model features and establish a classification model for colorectal cancer. And the effectiveness of the model was prospectively verified in patients in the whole hospital of Changhai Hospital from 2019.7.1 to 2020.8.31.Result:A colorectal cancer risk prediction model (CRC-Lab7) including 7 characteristics of fecal occult blood, carcinoembryonic antigen, red blood cell distribution width, lymphocyte count, albumin/globulin, high-density lipoprotein cholesterol and hepatitis B virus core antibody was constructed by the XgBoost algorithm. The AUC of the model in the validation set and prospective validation set were 0.799 and 0.816, respectively, which was significantly higher than that of fecal occult blood (AUC was 0.68 and 0.706, respectively). It also has high diagnostic accuracy for colorectal cancer with negative fecal occult blood or under 50 years old.Conclusion:In this study, a colorectal cancer risk prediction model was established by mining routine laboratory big data. The model′s performance is better than fecal occult blood, and it has high diagnostic accuracy for colorectal cancer in patients with negative fecal occult blood and younger than 50 years old.

11.
Article in Chinese | WPRIM | ID: wpr-911673

ABSTRACT

Objective:To investigate the efficacy of allogeneic hematopoietic stem cell transplantation for acute myeloid leukemia associated with 11q23/MLL.Methods:Retrospection and analysis 50 cases of acute myeloid leukemia with 11q23/MLL and who were treated with allogeneic hematopoietic stem cell transplantation(allo-HSCT)in our hospital from September 2012 to December 2019. The efficacy was evaluated by analyzing the transplantation success rate, graft-versus-host disease rate, infection rate, transplant-related mortality(TRM), accumulative recurrence rate, disease-free survival rate(DFS), and overall survival rate(OS).Results:Except for 1 patient had an unsuccessful stem cell transplantationas the result of multiple organ failure, the remaining 49 patients were successfully transplanted. The median time of leukocyte transplantation was 15(9~18)days, and the median time of platelet transplantation was 13(8~33)days. Bone marrow was assessed 28 days after transplantation, and 49 patients were in CR status. The median follow-up time was 38(3~79)months. Between remission group and non-remission group after transplantation, the 3-year OS rates were(83.3±10.8)%, (30.9+ 8.2)%( P=0.002)and the 3-year DFS rates were(83.3+ 10.8)%, (28.4±8.0)%( P=0.003), respectively. Conclusions:Allogeneic hematopoietic stem cell transplantation is an effective method for the treatment of 11q23/MLL rearranged AML. Patients in remission before transplantation have a higher survival rate, and recurrence after transplantation is the primary problem currently faced.

12.
Chinese Journal of Urology ; (12): 915-918, 2021.
Article in Chinese | WPRIM | ID: wpr-911149

ABSTRACT

Objective:To investigate the therapeutic effect of dorsal skin-tightening technique on the correction of mild penile curvature in children with hypospadias.Methods:The clinical characteristics of hypospadias patients (95 cases) with mild penile curvature (<30°) after degloving penis during operation in our hospital from Jan 2017 to Sep 2020 were analyzed retrospectively. Group A: A new technique, reconstructing penile pubic angle at 12 o'clock position of penile dorsal side after degloving and suturing forskin outer and inner plate with tension at 12 o'clock position, was performed in dorsal skin-tightening group (43 cases). Gtoup B: while in dorsal midline tunica albuginea plication group (52 cases), Buck fascia was incised on dorsal midline area, following by tunica albuginea plication with one or two stitches. The patients in Group A were 0.4 to 1.5 years old, and the median age was 1.1 years, urethral orifice were located on distal shaft in 36 cases, proximal in 7 cases.The patients in Group B were 0.5 to 2.6 years old, and the median age was 1.5 years, urethral orifice were located on distal shaft in 41 cases, proximal in 11 cases. The penile ventral curvature degree was recorded during regular follow-up (postoperative 6 and 12 months), as well as postoperative complications.Results:Artificial erection test showed penile curvature was corrected during surgery by measuring with protractor. There was no chordee by measuring with the side photos in all patients during an average of 1.6 years follow-ups. There were 4 case of urethral fistula in Group B and 3 cases in Group A. No cases of urethrostenosis, diverticulum or concealed penis was recorded. The difference of postoperative complications had no statistical significance.Conclusion:Hypospadias with mild penile curvature could be effectively corrected by dorsal skin-tightening technique, which showed a good result of early follow-up.

13.
Chinese Journal of Endemiology ; (12): 681-683, 2021.
Article in Chinese | WPRIM | ID: wpr-909077

ABSTRACT

Brucellosis is a kind of animal epidemic disease that can be transmitted to human beings through skin, mucous membrane, digestive tract, respiratory tract and other ways. In recent years, the incidence of brucellosis has increased. Its pathogenesis is relatively complicated. In addition to bacteria, toxins and other factors, genetic susceptibility has gradually attracted the attention of scholars. In this paper, we summarized the previous reports and reviewed the relationship between interleukin gene polymorphism and susceptibility to brucellosis.

14.
Article in Chinese | WPRIM | ID: wpr-908831

ABSTRACT

Objective:To explore the different design of readiness assurance process (RAP) and application in TBL teaching of rehabilitation medicine, and to compare the teaching effects.Methods:A total of 40 students who had clinical rotation in our department were chose as research subjects, and they were taught with TBL teaching. Two chapters of "Stroke Rehabilitation" and "Spinal Cord Injury Rehabilitation" were chosen for the two lectures. During the course of "Stroke Rehabilitation", the RAP adopted open-ended questions, and the application part simulated Teamwork meetings. In the course of "Spinal Cord Injury Rehabilitation", the RAP used close-ended multiple-choice questions, and the application part simulated making rehabilitation plan. At the end of the two lectures, questionnaires were send to students.Results:For the RAP part, more students preferred open-ended questions. In the application part, students preferred to make rehabilitation plan.Conclusion:The process of clinical diagnosis and treatment and the formulation of rehabilitation plan in clinical practice of rehabilitation medicine has been applied to different parts of TBL teachings, and students are favor of this teaching method, which provides a reference for the future TBL teaching design of rehabilitation medicine.

15.
Article in Chinese | WPRIM | ID: wpr-908020

ABSTRACT

Cow′s milk protein allergy (CMPA) is the most common food allergy in infancy.Since the early symptoms of CMPA in premature infants lack specificity and are prone to misdiagnosis or missed diagnosis, which would induce inappropriate fasting and unreasonable application of antibiotics, more attention should be paid to CMPA in premature infants.It has been proved in accumulating studies that the establishment and improvement of intestinal flora is the basic factor for the maturation of the immune system and the induction of immune response balance after birth.There are differences in the type and amount of intestinal flora between food allergic infants and non-allergic infants.Compared with term infants, preterm infants have significantly lower diversity and abundance of intestinal flora, immature gastrointestinal tract and immune system development, and are at greater risk for allergies.The use of probiotics can enhance intestinal barrier function and improve immune tolerance.The clinical diagnosis and treatment of preterm CMPA, the characteristics of intestinal flora and the use of probiotics in preterm infants would be reviewed in this paper.

16.
Article in Chinese | WPRIM | ID: wpr-906284

ABSTRACT

Objective:To explore the effect of chemical compound of aconitum alkaloid on the lipopolysaccharide (LPS)-induced inflammatory response of RAW264.7 macrophages and investigate its mechanism. Method:The chemical compounds of Aconitum Kusnezoffii Reichb were collected from TCMSP database with consideration of oral bioavailability (OB)≥30% and drug-likeness (DL)≥0.18. The potential targets of each chemical component were predicted with use of Pubchem database and Swiss Target Prediction database. Rheumatoid arthritis (RA) targets were collected from GeneCards database and selected by intersection screening. Gene ontology (GO) classification enrichment and Pathway enrichment analysis were carried out with use of DAVID database. Cytoscape was used to construct "Chemical Compound-Potential Targets-Pathway-Disease" network. Protein-protein interaction (PPI) network was constructed by using STRING database and Cytoscape software. RAW264.7 macrophages were stimulated by LPS to establish macrophage inflammation model <italic>in vitro</italic>. Western blot was used to detect the effects of chemical compounds on the expression of tumor necrosis factor-<italic>α</italic> (TNF-<italic>α</italic>) and cyclooxygenase-2 (COX-2) in RAW264.7 cells induced by LPS, as well as on the expression of JAK kinase and nuclear transcription factor- kappa B (NF-<italic>κ</italic>B) signal pathway. Result:A total of 27 chemical compounds were obtained by searching TCMSP database and consulting literature (OB≥30%, DL≥0.18). 12 chemical compounds were obtained after screening. 177 potential targets were obtained after database prediction and screening, and 97 targets were obtained as potential targets for the treatment of RA after intersection between 177 potential targets and 4 329 RA targets. A total of 32 biological processes (BP), 5 cellular components (CC), and 12 molecular functions (MF) were enriched by DAVID database. The construction of network topology map showed that different chemical compounds can act on the same target and the same chemical compound can also act on different targets in the treatment of RA. Aconitum alkaloid can be connected with the same pathway through different targets or with different pathways through the same target, indicating that different targets may have synergistic effect, which fully reflected the complex multi-compound, multi-targets and multi-pathways mechanism. Different concentrations of LPS in stimulation (0-200 μg·L<sup>-1</sup>) can significantly up-regulate the expression of COX-2 protein in RAW264.7 macrophages (<italic>P</italic><0.05), indicating that the inflammatory model was successful. Compared with the normal group, the expression of TNF-<italic>α</italic> and COX-2 protein in the inflammatory model of RAW264.7 cells increased significantly(<italic>P</italic><0.05), while the expression of TNF-<italic>α</italic> and COX-2 protein in bulleyaconitine A(BLA), songorine, yunaconitine and karacoline groups decreased in varying degrees compared with the model group (<italic>P</italic><0.05). Compared with the normal group, the expression of IRAK4, NF-<italic>κ</italic>B, JAK1 and STAT3 in the inflammatory model of RAW264.7 cells were significantly increased (<italic>P</italic><0.05), while such levels in BulleyaconitineA, songorine, yunaconitine and Karacoline groups were significantly lower than those in the model group(<italic>P</italic><0.05). Conclusion:Based on systematic pharmacology and <italic>in vitro</italic> experiments, the related targets and signal pathways were analyzed to provide new insights into the pathogenesis of RA, reveal the molecular mechanism of aconitum alkaloid in the treatment of RA, and provide new ideas for the application of Mongolian medicine in modern medicine.

17.
Article in English | WPRIM | ID: wpr-899105

ABSTRACT

Background@#and Purpose Brainstem gliomas (BSGs) in adults are rare brain tumors with dismal outcomes. The aim of this study was to determine the clinical and genetic features in a series of BSGs and their association with the prognosis. @*Methods@#Fifty patients who underwent a stereotactic biopsy between January 2016 and April 2018 at a single institution were collected. Data on clinicopathological characteristics were analyzed and factors associated with patient survival were identified using a Cox regression model. @*Results@#The median age at diagnosis was 55.5 years, and 62% of the patients were male. Glioblastoma (44%) accounted for the largest proportion of BSGs, and oligodendroglioma (2 of 50) was rarely encountered. The IDH mutation (6 of 44) occurred infrequently in astrocytomas, and IDH-mutant tumors harbored both ATRX loss and MGMT promoter methylation at a relatively low level. Wild-type IDH astrocytomas were identified as having high rates of 1p/19q codeletion (5 of 38) and loss of heterozygosity 1p (8 of 38) or 19q (8 of 38) only. In diffuse midline glioma H3K27M mutant, MGMT promoter methylation occurred in three of four cases. Patients were offered radiotherapy and/or concurrent/adjuvant temozolomide chemotherapy, and their median survival time was 13 months. Multivariate analysis revealed that a low tumor grade, absence of tumor enhancement, duration of symptoms ≥3 months, Karnofsky performance status ≥70, and ATRX loss conferred a survival advantage. @*Conclusions@#Adult BSGs showed different molecular genetic characteristics, but also resembled supratentorial gliomas in their clinical features associated with oncological outcomes.

18.
Article in English | WPRIM | ID: wpr-896256

ABSTRACT

Neonatal hypoxia/ischemia (H/I), injures white matter, results in neuronal loss, disturbs myelin formation, and neural network development. Neuroinflammation and oxidative stress have been reported in neonatal hypoxic brain injuries. We investigated whether Paeoniflorin treatment reduced H/I-induced inflammation and oxidative stress and improved white matter integrity in a neonatal rodent model. Seven-day old Sprague?Dawley pups were exposed to H/I. Paeoniflorin (6.25, 12.5, or 25 mg/kg body weight) was administered every day via oral gavage from postpartum day 3 (P3) to P14, and an hour before induction of H/I. Pups were sacrificed 24 h (P8) and 72 h (P10) following H/I. Paeoniflorin reduced the apoptosis of neurons and attenuated cerebral infarct volume. Elevated expression of cleaved caspase-3 and Bad were regulated. Paeoniflorin decreased oxidative stress by lowering levels of malondialdehyde and reactive oxygen species generation and while, and it enhanced glutathione content. Microglial activation and the TLR4/NF-κB signaling were significantly down-regulated. The degree of inflammatory mediators (interleukin 1β and tumor necrosis factor-α) were reduced. Paeoniflorin markedly prevented white matter injury via improving expression of myelin binding protein and increasing O1-positive olidgodendrocyte and O4-positive oligodendrocyte counts. The present investigation demonstrates the potent protective efficiency of paeoniflorin supplementation against H/I-induced brain injury by effectually preventing neuronal loss, microglial activation, and white matter injury via reducing oxidative stress and inflammatory pathways.

19.
Chinese Journal of Lung Cancer ; (12): 838-846, 2021.
Article in Chinese | WPRIM | ID: wpr-922152

ABSTRACT

BACKGROUND@#Postoperative complications are an important cause of death after lung resection. At present, the adoption of video assisted thoracoscopic surgery (VATS) for lung cancer in China is increasing every year, but the prediction model of postoperative complications of VATS for lung cancer is still lack of evidence based on large sample database. In this study, Thoracic Mortality and Morbidity (TM&M) classification system was used to comprehensively describe the postoperative complications of VATS major lung resection in our center, and the prediction model of complications was established and verified. The model can provide basis for the prevention and intervention of postoperative complications in such patients, and accelerate the recovery of patients.@*METHODS@#The clinical data of patients underwent VATS major lung resection in our center from January 2007 to December 2018 were collected retrospectively. Only patients with stage I-III lung cancer were included. The postoperative complications were registered strictly by TM&M classification system. The patients were divided into two groups according to the operation period: the early phase group (From 2007 to 2012) and the late phase group (From 2013 to 2018). The baseline data of the two groups were matched by propensity score matching. After matching, binary logistic regression analysis was used to establish the prediction model of complications, and bootstrap internal sampling was used for internal verification.@*RESULTS@#A total of 2,881 patients with lung cancer were included in the study, with an average age of (61.0±10.1) years, including 180 major complications (6.2%). Binary Logistic regression analysis of 1,268 matched patients showed: age (OR=1.04, 95%CI: 1.02-1.06, P<0.001), other period (OR=0.62, 95%CI: 0.49-0.79, P<0.001), pathological type (OR=1.73, 95%CI: 1.24-2.41, P=0.001), blood loss (OR=1.001, 95%CI: 1.000-1.003, P=0.03), dissected lymph nodes (OR=1.022, 95%CI: 1.00-1.04, P=0.005) were independent risk factors for postoperative complications. The ROC curve indicates that the model has good discrimination (C-index=0.699), and the C-index is 0.680 verified by bootstrap internal sampling for 1,000 times. The calibration curve shows a good calibration of the prediction model.@*CONCLUSIONS@#TM&M system can comprehensively and accurately report the postoperative complications of thoracoscopic lung cancer surgery. Age, operative period, pathological type, intraoperative bleeding and dissected lymph nodes were independent risk factors for postoperative complications of VATS major lung resection for lung cancer. The established complication prediction model has good discrimination and calibration.


Subject(s)
Aged , Humans , Lung , Lung Neoplasms/surgery , Middle Aged , Morbidity , Nomograms , Pneumonectomy , Postoperative Complications/etiology , Retrospective Studies , Thoracic Surgery, Video-Assisted
20.
Chinese Journal of Biotechnology ; (12): 4075-4082, 2021.
Article in Chinese | WPRIM | ID: wpr-921488

ABSTRACT

The rapid screening of tumor markers is a challenging task for early diagnosis of cancer. This study aims to use highly sensitive chemiluminescent protein microarray technology to efficiently screen a variety of low abundance tumor related markers. A new material, termed integrated polydimethylsiloxane modified silica gel (iPDMS), was obtained by adding a surface polymerization initiator with olefin end to the conventional polydimethylsiloxane, and fixing into the three-dimensional structure of polydimethylsiloxane by thermal crosslinking through silicon hydrogen bonding. In order to make the iPDMS material resistant to non-specific protein adsorption, a poly(OEGMA) polymer brush was synthesized by surface-initiated atom transfer radical polymerization at the active initiation site. Finally, 20 tumor-related antigens were printed into the specific areas of the microarray by high-throughput spray printing technology, and assembled into 48-well detection microtiterplates of the iPDMS microarray. It was found the VEGFR and VEGF121 autoantibodies that obtained from 8 common tumors (breast cancer, lung cancer, colon cancer, gastric cancer, liver cancer, leukemia, lymphoma and ovarian cancer) can be used as potential tumor markers. The chemiluminescence labeled iPDMS protein microarray can be used for the screening of tumor autoantibodies at early stage.


Subject(s)
Adsorption , Autoantibodies , Dimethylpolysiloxanes , Protein Array Analysis , Silica Gel , Surface Properties
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