1.Content changes of nitric oxide in rat model of pancreatitis
Journal of Medical Postgraduates 2003;0(03):-
Objective:To identify the role of NO changes in L-arginine induced model of acute pancreatitis in rats. Methods: Acute pancreatitis was induced with a single intraperitoneal injection of 500 mg/100 g body weight of L-arginine. The contents of NO were measured at 6 h,12 h,24 h,48 h,72 h after injection. Results: The content changes of NO in the pancreatic tissues of the rats were decreasing with pancreatitis exacerbating and reaching the lowest value in 48 h when the severity of pancreatic necrosis became serious, then began to rise slowly. The controls had not changed markly. Conclusion: The contents of NO decreasing is relative to the severity of pancreatic necrosis.
2.Anti-proliferative Effect of Lupeol on Human Bladder Cancer T24 Cell Line via p53/miR-34 a Signaling
Min GUO ; Pei LIU ; Guohua ZHENG ; Zhenpeng QIU
China Pharmacist 2016;19(9):1629-1632
Objective:To study the anti-proliferative effect of lupeol on human bladder cancer T24 cell line and the regulating mechanism for p53/miR-34a signaling. Methods:CCK-8 assay was performed to evaluate the effects of lupeol at different concentra-tions on cell viability in 24 h and 48 h. Caspase inhibitors were used to identify the subtypes of Caspase during lupeol induced cell death. The effects of lupeol on the expression of total p53 protein and miR-34a were evaluated by western blot and real-time PCR, re-spectively. The effects of lupeol on downstream targets of miR-34a were quantified by real-time PCR. Results:Lupeol could inhibit the proliferation of T24 cells in a dose-dependent manner. The IC50 of lupeol was (77. 23 ± 6. 78) μmol·L-1 in 24 h. Compared with the control group, lupeol could elevate the expressions of p53 and miR-34a (P<0. 01). Moreover, the mRNA expression of miR-34a tar-gets, Bcl-2, CD44 and c-Myc were significantly down-regulated after the treatment with lupeol (P<0. 01). Conclusion:Lupeol can inhibit T24 cell proliferation, which is related with the regulating effects on p53/miR-34a signaling.
3.The clinical study of Salvianolate with intervention bioinformatics of patients with Non-ST-segment elevation myocardial infarction
Zhenpeng ZHANG ; Jun LI ; Yongmei LIU ; Jie WANG
International Journal of Traditional Chinese Medicine 2021;43(1):27-31
Objective:To observe the changes of biomarkers in patients with non-ST segment elevation myocardial infarction (NSTEMI) after intervention with Salvianolate.Methods:A total 81 patients with NSTEMI who met the inclusion criteria from January 2016 to December 2019 were randomly divided into two groups. The control group dropped 6 cases, the treatment group dropped 6 cases, and finally each group had 35 cases. The control group was treated with conventional medicine therapy, and the treatment group was treated by intravenous drip of 0.9% NS 250 ml + Salvianolate on the basis of the control group. Both groups were treated continuously for 10 days. The latex immunoturbidimetric method was used to detect hypersensitive-C-Reactive-Protein (hs-CRP), double antibodysandwich immune chemiluminescence method for procalcitonin (PCT), electrochemiluminescence method for N-Terminal pro-B-type Natriuretic Peptide (NT-proBNP), coagulation method for plasma fibrinogen (FIB), and immunoassay for D-dimer. The number of episodes of angina pectoris after infarction, recurring myocardial infarction, malignant arrhythmia, and death in the hospital were recorded and collected during the hospitalization period (0-10 d).Results:After treatment, hs-CRP (2.46 ± 1.76 mg/L vs. 3.45 ± 0.67 mg/L, t=2.324), PCT (0.52 ± 0.30 ng/L vs. 0.11 ± 0.08 ng/L, t=2.059), FIB (1.30 ± 0.63 g/L vs. 1.97 ± 0.67 g/L, t=2.168) in the treatment group were significantly lower than those in the control group ( P<0.05). After treatment, the level of NT-proBNP and D-dimer showed a downward trend, but there was no statistically significant difference within and between groups ( P>0.05). During hospitalization, the number of angina pectoris after infarction in the treatment group was significantly lower than that of the control group ( t=4.019, P=0.045), while the incidence of acute heart failure, recurring myocardial infarction, malignant arrhythmia and death in the hospital showed no significant difference ( P>0.05). Conclusion:Salvianolate can reduce the inflammatory response of NSTEMI patients on the basis of western medicine, relieve the hypercoagulable state, and reduce the number of angina pectoris after infarction.
4.Effects of Shenmai Injection on serum concentration and pharmacokinetics of digoxin in dogs with heart failure.
Jingyuan MAO ; Changxiao LIU ; Henghe WANG ; Guangli WEI ; Zhenpeng ZHANG ; Jie XING ; Xianliang WANG ; Yingfei BI
Journal of Integrative Medicine 2010;8(11):1070-4
To explore the effects of Shenmai Injection (SMI), a compound traditional Chinese herbal medicine, on pharmacokinetics and serum concentration of digoxin when applied together with digoxin.
5.Effects of Du Meridian Electroacupuncture on Neurological Function of Rats after Spinal Cord Injury
Bingkui LI ; Bin ZENG ; Wei CHANG ; Dayi WANG ; Zhenpeng GUO ; Qi YANG ; Tao LIU
Chinese Journal of Rehabilitation Theory and Practice 2012;18(7):619-622
score 1, 2, 4, 8 weeks after SCI, somatosensory evoked potential (SEP) and spinal cord histopathological examination 2, 4, 8 weeks after SCI. Results The difference of BBB score was not significant between the groups 1 week after SCI (P>0.05), but improved more in group B than in group A 2,4,8 weeks after SCI (P<0.01), as well as the latency and wave amplitude of SEP (P<0.01). There were scar tissue and syringomyelia in injured spinal cord, and the size of syringomyelia was larger in group A than in group B. Neurofilament 200 (NF200) expressed 2, 4, 8 weeks after SCI, and was more in group B than in group A (P< 0.01). Conclusion Du meridian electroacupuncture can promote the recovery of neurological function in rats after spinal cord injury.
6.Prognostic factors of patients with T2N0M0 upper tract urothelial carcinoma:a single-center retrospective study of 235 patients
Bao GUAN ; Zhenpeng CAO ; Ding PENG ; Yifan LI ; Yonghao ZHAN ; Libo LIU ; Shiming HE ; Gengyan XIONG ; Xuesong LI ; Liqun ZHOU
Journal of Peking University(Health Sciences) 2017;49(4):603-607
Objective: To evaluate the impacts of the prognostic factors of T2N0M0 upper tract urothelial carcinoma (UTUC) for Chinese patients.Methods: A retrospective study was conducted including 235 patients who were diagnosed with T2N0M0 UTUC in our hospital and received radical nephroureterectomy (RNU) or partial ureterectomy during January 2000 and December 2013.The 3 and 5-year can-cer-specific survival rates and bladder recurrence-free survival rates of all the patients were valued using Kaplan-Meier method, and the survival curves with statistical significance between the two were compared using the Log-rank test.Variables with significant differences in the univariate analysis were subjected to the multivariate analysis by Cox regression model.Results: A total of 235 patients were included in this study, including 95 (40.4%) male patients and 140 (59.6%) female patients.The mean age was 66.73±10.49 years.The median follow-up time was 53 (rang: 3-142) months, and during the follow-up, 74 (31.5%) patients died of UTUC after a median of 35 months,and 96 (40.9%) patients developed intravesical recurrence after a median of 19.5 months.The 3 and 5-year cancer-specific survival rates of all the patients were 89.1% and 85.9%, respectively;the bladder recurrence-free survival rates were 85.5% and 80.2%, respectively.The independent prognostic factors of cancer-specific mortality were tumor age elder than 55 years (HR=3.138, 95%CI: 1.348-7.306, P=0.008) and diameter larger than 5 cm (HR=3.320, 95%CI: 1.882-5.857, P<0.001).The independent prognostic factors of bladder recurrence-free survival were ureter tumor (HR=1.757, 95%CI: 1.159-2.664, P=0.008) and lower tumor grade (HR=1.760, 95% CI: 1.151-2.692, P=0.009).Conclusion: T2N0M0 UTUC has a better cancer-specific survival.The intravesical recurrence was equivalent to non-muscle invasive UTUC but earlier.The tumor diameter larger than 5 cm and the patient age elder than 55 years were independently associated with cancer-specific mortality;the primary tumor located in ureter and lower tumor grade were more likely to develop intravesical recurrence.
7.Perlman syndrome research progress.
Zhenpeng WANG ; Jingyi LIU ; Yi YANG
Chinese Journal of Medical Genetics 2021;38(10):1021-1024
Perlman syndrome is a rare autosomal recessive congenital overgrowth syndrome caused by pathogenic variants of the DIS3L2 gene at 2q37 region. Clinically this syndrome is characterized by polyhydramnios, macrosomia, distinctive facial appearance, and renal dysplasia. Prognosis of the disease is poor, and survivors usually have mental delay and a high risk of developing Wilms tumor. At present, the pathogenesis of this disease is still poorly understood. This article intends to provide a review for this disease.
Female
;
Fetal Macrosomia
;
Humans
;
Kidney Tubules, Proximal
;
Pregnancy
;
Syndrome
;
Wilms Tumor
8.Prognostic value of preoperative peripheral lymphocyte-to-monocyte ratio in prostate cancer patients treated with endocrine therapy after radical prostatectomy
Yan LIU ; Siyang ZHANG ; Zhenpeng LIAN ; Ranlu LIU ; Yong XU
Chinese Journal of Geriatrics 2021;40(7):881-885
Objective:To investigate the correlation of preoperative peripheral lymphocyte-to-monocyte ratio(LMR)with the biochemical relapse and prognosis in prostate cancer(PCa)patients treated with endocrine therapy after radical prostatectomy(RP).Methods:Clinical data of 306 prostate cancer patients treated with endocrine therapy after radical prostatectomy were retrospectively analyzed in our hospital from June 2008 to June 2019.The end point of observation was biochemical relapse-free survival(RFS)in all patients receiving RP.The best cutoff value of preoperative LMR was calculated by receiver operating characteristic(ROC)curve.All patients were divided into the high LMR group(LMR≥2.8, n=93, 30.4%)and the low LMR group(LMR<2.8, n=213, 69.6%). The differences in clinical indicators of PCa were compared between high and low LMR groups.CoX regression model on the risk ratio of single and multiple factors were used to analyze the survival effect of preoperative LMR on the prognosis of PCa patients undergoing endocrine therapy after operation.Results:The median follow-up time was ranged from 4 to 132 months.The area under the ROC curve of LMR was 0.582(95% CI: 0.511-0.652, P<0.05), and the cutoff value of the preoperative LMR was 2.8, which was significantly associated with clinical T stage( P=0.023)and lymphatic metastasis( P=0.031). Kaplan-Meier analysis demonstrated that the low LMR group had a short RFS and a poor prognosis(31.0 months vs.38.5 months)than those in the high LMR group( P<0.05). Lymphatic metastasis and preoperative LMR were independent predictors for RFS in PCa patients treated with endocrine therapy after radical prostatectomy. Conclusions:Preoperative peripheral LMR can be used as an auxiliary indicator of the prognosis in PCa patients treated with endocrine therapy after radical prostatectomy.
9.Analysis of risk factors for leukoaraiosis in patients with large artery atherosclerosis
Zhenpeng DUAN ; Chengbo DAI ; Yuhu ZHANG ; Xiong ZHANG ; Shuo WANG ; Guixian MA ; Xintong LIU ; Biao HUANG ; Hongmei TANG ; Yumin CAO ; Long LONG ; Lijuan WANG
Chinese Journal of Cerebrovascular Diseases 2014;(9):449-453
Objective Toinvestigatetheriskfactorsforleukoaraiosis(LA)inpatientswithlarge arteryatherosclerosis(LAA).Methods Theclinicaldata(age,sex,hypertension,diabetes,smoking, serum lipid level,hyperhomocysteinemia,and numbers of stenosis or occluded cerebral arteries)of 312 patients with LAA classified by the modified stop stroke study trial of Org 10172 in acute stroke treatment (SSS-TOAST ) were analyzed retrospectively. The age-related white matter changes (age related white matter changes,ARWMC)scale was used to evaluate LA. All the 312 patients were divided into non-LA group(n=72)and LA group(n=240)according the T2 weighted magnetic resonance imaging (MRI) and fluid attenuated inversion recovery(FLAIR)sequence,and 3 groups according to the (age-related white matter changes,ARWMC)scores:mild LA,moderate LA,and severe LA groups. The patients with multiple risk factors were analyzed by the univariate and multivariate Logistic regression analyses. Results (1)Of the 312 patients with LA,227 were males (72. 8%). Their average age was 64 ± 11 years,and 240 of them (76. 9%)had LA. Multivariate Logistic regression analysis showed that age (OR,2. 911,95%CI 1. 647-5.146,P=0. 000),hypertension (OR,2. 583,95%CI 1. 373-4.857,P<0. 01),diabetes (OR,1. 882, 95%CI 1. 058-3. 348,P <0. 05),the numbers of stenosis or occlusion arteries (OR,1. 851,95%CI 1.018-3. 367,P<0. 05),and lacunar infarction (LI)(OR,1.493,95%CI 1. 202-1. 853,P<0. 01)were the risk factors for LA. (2)The comparison of the clinical data in patients with different severity in the LA group found that there were significant differences in age,hypertension,diabetes,the numbers of stenosis or occlusionarteries,andLIamongthe3groups(allP<0.05).Conclusion Age,hypertension,diabetes, the numbers of stenosis or occlusion arteries,and LI are the independent risk factors for patients with LAA,and it is associated with the severity of LA.
10. Comparison of proximal femoral nail antirotation versus InterTAN nail in the treatment of senile patients with unstable femoral intertrochanteric fracture
Kun ZHANG ; Jiabang LIU ; Dong LI ; Qinghua ZHANG ; Zheng PEI ; Zhao LI ; Zhenpeng GUAN
Chinese Journal of Orthopaedic Trauma 2019;21(12):1052-1058
Objective:
To compare the clinical efficacy between proximal femoral nail antirotation (PFNA) versus InterTAN nail in the treatment of senile patients with unstable femoral intertrochanteric fracture.
Methods:
A retrospective study was conducted of the 164 senile patients with unstable femoral intertrochanteric fracture who had been treated at Department of Orthopedics, Shougang Hospital Affiliated to Peking University from January 2013 to March 2018. InterTAN nailing was performed in 93 of them, including 30 men and 63 women with an age of 84.5±2.4 years; by the AO classification, there were 53 cases of type 31-A2.2, 28 cases of type 31-A2.3 and 12 cases of type 31-A3. PENA fixation was performed in the other 71 patients, including 19 men and 52 women with an age of 83.8±2.3 years; by the AO classification, there were 41 cases of type 31-A2.2, 22 cases of type 31-A2.3 and 8 cases of type 31-A3. The 2 groups were compared in terms of weight-bearing time, thigh pain, hip function, imaging complications and postoperative quality of life.
Results:
The 2 groups were comparable because there were no significant differences between them in preoperative general data (