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This study aimed to evaluate the biological effect and mechanism of Vernonia anthelmintica Injection(VAI) on melanin accumulation. The in vivo depigmentation model was induced by propylthiouracil(PTU) in zebrafish, and the effect of VAI on melanin accumulation was evaluated based on the in vitro B16F10 cell model. The chemical composition of VAI was identified according to the high-performance liquid chromatography quadrupole-time-of-flight tandem mass spectrometry(UPLC-Q-TOF-MS). Network pharmaco-logy was applied to predict potential targets and pathways of VAI. A "VAI component-target-pathway" network was established, and the pharmacodynamic molecules were screened out based on the topological characteristics of the network. The binding of active molecules to key targets was verified by molecular docking. The results showed that VAI promoted tyrosinase activity and melanin production in B16F10 cells in a dose-and time-dependent manner and could restore the melanin in the body of the zebrafish model. Fifty-six compounds were identified from VAI, including flavonoids(15/56), terpenoids(10/56), phenolic acids(9/56), fatty acids(9/56), steroids(6/56), and others(7/56). Network pharmacological analysis screened four potential quality markers, including apigenin, chrysoeriol, syringaresinol, and butein, involving 61 targets and 65 pathways, and molecular docking verified their binding to TYR, NFE2L2, CASP3, MAPK1, MAPK8, and MAPK14. It was found that the mRNA expression of MITF, TYR, TYRP1, and DCT in B16F10 cells was promoted. By UPLC-Q-TOF-MS and network pharmacology, this study determined the material basis of VAI against vitiligo, screened apigenin, chrysoeriol, syringaresinol, and butein as the quality markers of VAI, and verified the efficacy and internal mechanism of melanogenesis, providing a basis for quality control and further clinical research.
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Animals , Vernonia/chemistry , Melanins/metabolism , Zebrafish/metabolism , Network Pharmacology , Molecular Docking Simulation , Apigenin/pharmacology , Drugs, Chinese Herbal/pharmacology , Chromatography, High Pressure LiquidABSTRACT
Aim To evaluate the effects of Rutaecarpine(Rut)on the expression of SIRT1 and the senescence of vascular smooth muscle cells(VSMCs)induced by angiotensin Ⅱ.Methods VSMC senescencewas induced by exposure to AngⅡ(1 μmol·L-1)for 72 h.VSMCs were treated with different concentrations of Rut(0.3, 1, 3 μmol·L-1).TRPV1 competitive antagonist CAPZ(10 μmol·L-1)and AMPK inhibitor Compound C(1 μmol·L-1)were used to explore whether TRPV1/AMPK mediated the protective effect of Rut.The quantity of senescent cells were determined by senescence-associated SA-β-Gal staining, and the intracellular ROS level was measured by(DCFH-DA)fluorescent probe.The migration ability of VSMCs was evaluated by Wound-healing assay combined with Transwell assay.The protein level of longevity protein SIRT1 and senescence-related proteins p53, p21 and AMPK phosphorylation level were detected by Western blot.Results Rut significantly inhibited Ang Ⅱ-induced VSMC senescence and ROS production and prevented VSMCs migration.Preprocessing of TRPV1 antagonist CAPZ could abolish the protective effect of Rut.Ang Ⅱ inhibited the expression of longevity protein SIRT1.Rut recovered SIRT1 expression in a dose-dependent manner, while prevented the up-regulation of senescence-related proteins p53 and p21.Ang Ⅱ inhibited AMPK phosphorylation, pre-treatment with Rut restored AMPK phosphorylation level.CAPZ and Compound C eliminated the up-regulating function of Rut on SIRT1 expression.Conclusions Rut up-regulates the expression of SIRT1 and prevents the senescence and migration of VSMCs induced by Angiotensin Ⅱ, which is related to activation of the TRPV1/AMPK signaling pathway.
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@#[Abstract] Objective: Elevated levels of soluble PD-L1 (sPD-L1) are associated with worse prognosis of renal cell carcinoma and multiple myeloma. However, the regulatory roles and functions of sPD-L1 in advanced melanoma are not fully understood. This study was designed to evaluate the association between circulating sPD-L1 concentrations and prognosis of patients with advanced acral or mucosal melanoma. Methods: A total of 102 untreated patients with advanced acral and mucosal melanoma admitted to Peking University Cancer Hospital between January 2012 and December 2015 were enrolled in this study. In the meanwhile, peripheral blood samples were obtained from 40 healthy donors. Circulating sPD-L1 concentrations were determined using an enzyme-linked immunosorbent assay. Results: The advanced melanoma cohort included 58 acral melanoma patients and 44 mucosal melanoma patients. The pre-treatment concentration of sPD-L1 (2.91±2.23 ng/ml) in plasma of patients group was elevated as compared with that in healthy donors (0.59 ng/ml). The concentration of sPD-L1 in serum was significantly upregulated in 39/102 (38.2%) patients and significantly associated with increased LDH level (P=0.021) and number of Tregs (P=0.017). The overall survival rates of patients with high or low concentrations of sPD-L1 were statistically different (8.5 months [high level] vs 11.6 months [low level], P=0.022). Conclusion: sPD-L1 concentration is elevated in patients with advanced acral or mucosal melanoma, which may play an important role in predicting prognosis.
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@#[Abstract] Objective: To explore the expression patterns of melanoma lineage antigens and nuclear antigen Ki-67 and their correlations with survival in melanoma patients. Methods: A retrospective analysis was conducted to analyze the pathological data of melanoma patients treated at the Department of Melanoma, Peking University Cancer Hospital from February 2008 to August 2020, mainly including the expression patterns of melanoma lineage antigens (S-100, HMB-45, Melan-A) and Ki-67, demographics, clinical features and survival. The correlation between expression patterns of melanoma lineage antigens, Ki-67 and melanoma-specific survival (MSS) was analyzed. Results: In total, 603 patients were included in this study. The median follow-up time was 47.4 months. The positive rates of S-100, HMB, and Melan-A were 92.8%, 92.1% and 90.0%, respectively. The percentages of patients with melanoma lineage antigen scores (S-100, HMB-45 and Melan-A was scored each, as 1 when positive and 0 when negative) of 0, 1, 2, and 3 were 0.5%, 5.0%, 15.6%, and 78.8%, respectively. The percentages of patients with Ki-67 scores of 0, 1, 2, and 3 were 43.0%, 36.3%, 16.3%, and 4.5%, respectively. Ki-67 was highly expressed in mucosal and progressive melanomas. In a multivariate analysis, Ki-67 expression was an independent prognostic factor for poorer MSS (HR=1.506, 95%CI: 1.248-1.818, P<0.001) as the incidence of MSS event increased by 50% per 25% increase in Ki-67 expression, whereas there was no statistical correlation between melanoma lineage antigen expression and MSS (HR=0.991, 95%CI: 0.759-1.293, P=0.94). Conclusion: High expressions melanoma lineage antigens are ubiquitous in melanoma tissues, and Ki-67 is an independent prognostic factor for MSS.
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@#[Abstract] In the past, surgery and chemotherapy were the main treatment strategies for malignant melanoma, but companied with poor prognosis. With the development of high-throughput gene sequencing technology and the deepening understanding of tumor molecular mechanisms, it has been found that tumor heterogeneity and the diversity of tumor microenvironment affect tumor formation, drug resistance and treatment selection, leading to different responses and benefits of melanoma patients to the same treatment. The emerge and progression of targeted therapy and immunotherapy have significantly increased the survival rates of patients with metastatic melanoma, promoting the individualization and precision of melanoma treatment and making precise treatment a research hotspot as well as a trend. This review mainly summarizes the research progress of systemic individualized treatment of advanced melanoma based on precise subtyping and molecular level, and to get a more comprehensive view of the survival status of melanoma patients in the era of precision medicine, as well as the prospect and necessity of developing various targeted therapy, immunotherapy or combination therapy.
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@#[摘 要] 目的:本研究旨在评估白蛋白紫杉醇+卡铂联合抗血管生成药物(nab-paclitaxel, carboplatin, antiangiogenic drug, NCA)方案用于既往治疗失败的晚期黑色素瘤患者的疗效和安全性。方法:收集2012年4月1日至2019年5月31日在北京大学肿瘤医院肾癌黑色素瘤科住院的黑色素瘤患者,回顾性分析NCA方案在既往治疗失败后的不可切除Ⅲ c期和Ⅳ期黑色素瘤患者中的疗效和安全性。主要终点指标为无进展生存期(PFS),次要指标为客观缓解率(ORR)、总生存期(OS)、疾病控制率(DCR)和不良反应。根据使用的抗血管药物分为恩度治疗组(n=73)和贝伐珠单抗治疗组(n=103),采用倾向性评分匹配以均衡不同抗血管生成药物组间基线变量的差异。结果:共计176例患者被纳入本项分析中。所有患者中位年龄51岁(范围为18~78岁)。Ⅳ期患者占97%,50%的患者LDH水平高于正常值,28%的患者存在肝转移。既往治疗线数占比分别为1线57%、2线33%、3~4线10%。所有患者的中位PFS为3.8个月(95%CI:3.0~4.6),中位OS为10.5个月(95%CI: 8.9~12.1)。2例患者获得完全缓解,9例患者获得部分缓解,全组的ORR为6%,DCR达70%。恩度治疗组和贝伐珠单抗治疗组的中位PFS分别为4.7个月(95%CI:3.5~5.9)和3.4个月(95%CI:3.0~4.6),两组中位OS分别为12.2个月(95% CI:11.1~13.2)和9.1个月(95%CI: 7.8~10.4)。对所有患者的年龄、性别、既往治疗线数和LDH水平进行倾向性评分匹配,贝伐珠单抗和恩度治疗组间PFS和OS差异无统计学意义。常见的不良反应包括脱发、周围神经病变、中性粒细胞减少、疲劳和恶心。26名(15%)患者由于不良反应停止了治疗。结论:白蛋白紫杉醇+卡铂联合抗血管生成药物对既往治疗失败的晚期黑色素瘤患者具有一定的疗效,不良反应可耐受。
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Objective: To explore the correlation between umbilical artery blood erythropoietin (EPO) level and perinatal factors in premature infants and its clinical significance. Methods: Umbilical artery blood samples from 107 premature infants born in the Eastern Branch of Shanghai First Maternity and Infant Hospital of Tongji University between Jan. 2019 and Jun. 2019 were collected. The levels of EPO and ferritin were measured by ELISA and chemiluminescence assay, respectively. The 107 infants were divided into three groups according to the quartile EPO level: low level group, medium level group and high level group. The relationship between umbilical artery blood EPO level and gestational age, birth body mass and other perinatal factors, the incidence of anemia of prematurity (AOP), necrotizing enterocolitis (NEC), patent ductus arteriosus (PDA) and atrial septal defect (ASD) in premature infants, and the clinical characteristics of pregnant mothers was analyzed. Results: The EPO level of umbilical artery blood in 107 newborn premature infants was 5.94-137.18 mU/mL, and the median level was 23.51 (14.60, 51.28) mU/mL. There were 26 cases in the low level group (the EPO level 14.60 mU/mL), 54 in the medium level group (14.60-51.27 mU/mL), and 27 cases in the high level group (≥51.28 mU/mL). Univariate analysis showed that the gestational age of the infants in the low level group was significantly lower than those in the medium level group and the high level group (both P < 0.05), the age of the pregnant mothers was significantly higher than those in the medium level group and the high level group (both P < 0.05), the natural pregnancy rate was significantly lower than that in the high level group (P < 0.05), and the continuous positive airway pressure (CPAP) usage rate of the infants was significantly higher than that in the medium level group (P < 0.05). The ferritin level of umbilical artery blood was significantly higher in the midium level group than that in the high level group (P < 0.05). The incidence of AOP in the high level group was significantly higher than that in the midium level group (P < 0.05). Multiple linear regression analysis showed that the EPO level of umbilical artery blood was positively correlated with the gestational age of newborn premature infants and the natural pregnancy rate of pregnant mothers (both P < 0.01). Multivariate logistic regression analysis showed that the higher the natural pregnancy rate, the higher the level of EPO in umbilical artery blood, and the higher the natural delivery rate, the lower the level of EPO in umbilical artery blood. The risks of PDA and NEC decreased and the risk of ASD increased with the increase of EPO level in umbilical artery blood (all P < 0.05). Conclusion: Conception method and delivery mode are the influencing factors of EPO level in umbilical artery blood. Monitoring the EPO level of umbilical artery blood is helpful to diagnose the common complications such as AOP, PDA, ASD and NEC in premature infants.
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Objective To investigate the in vitro antibacterial spectrum of silibinin and its isomers and the combined antibacterial effect of silibinin and commonly-used clinical antibiotics. Methods Micro-broth dilution method was used to determine the minimum inhibitory concentration (MIC) of silibinin and its isomers against six standard strains and six clinical isolates (74 strains) of common bacteria infections. Plate count method was used to measure the growth inhibition curves of different concentrations of silibinin against six standard strains. Checkerboard micro-broth dilution method was used to carry out the combined susceptibility test of silibinin and clinical antibiotics. The fractional inhibitory concentration (FIC) was calculated to determine the combined antibacterial effect of silibinin and antibiotics. Results The MICs of silibinin against standard strains of Staphylococcus epidermidis, Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium were between 50 μg/mL and 400 μg/mL, and those of silibinin for standard strains of Escherichia coli and Pseudomonas aeruginosa were both greater than 400 μg/mL. The MICs of silibinin for clinical strains, Staphylococcus epidermidis, Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium were all within the range of 100 μg/mL to 400 μg/mL, and MICs of silibinin against clinical strains of Escherichia coli and Pseudomonas aeruginosa were greater than 400 μg/mL. The MICs of other isomers of silibinin against six standard strains were greater than or equal to 400 μg/mL. Silibinin had a significant inhibitory effect on the growth curve of standard strains of Staphylococcus epidermidis, Staphylococcus aureus, Enterococcus faecalis, and Enterococcus faecium, which increased with increasing drug concentration, and it had no effect on that of Escherichia coli and Pseudomonas aeruginosa. The FIC of silibinin combined with penicillin/erythromycin for gram-positive test bacteria was in the range of 0.5 2 or 1 < FIC ≤ 2. Conclusion Silibinin has a notable antibacterial activity to gram-positive bacteria with the best inhibitory effect on Staphylococcus epidermidis. The antibacterial activities of silibinin is higher than those of other isomers. The combined antibacterial effect of silibinin and penicillin/erythromycin is mainly additive and irrelevant, while that of silibinin and ciprofloxacin or gentamicin is mainly antagonistic or irrelevant.
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@#Objective: To investigate the expression of phosphorylated retinoblastoma (p-Rb) in advanced melanoma tissues and to analyze its correlation with clinical pathological characteristics and prognosis. Methods: The clinical data and paraffin-embedded tissue sections of 66 patients with advanced melanoma, who were diagnosed and treated in the Department of Renal Cancer and Melanoma of Peking University Cancer Hospital from 2011 to 2014, were collected. Expression of p-Rb in primary tumor tissues was detected by immunohistochemistry. Correlation analysis was performed on the relationship between the expression level of p-Rb in tumor tissues and clinical data such as clinicopathological features and overall survival. Results: The positive expression rate of p-Rb in advanced melanoma tissues was 57.6% (38/66). The positive rates of p-Rb in non-acral cutaneous type, acral type and mucosal type were 73.7% (14/ 19), 63.0% (17/27) and 35.0% (7/20), respectively, and the difference was statistically significant (P=0.039). The positive rate of p-Rb in different gene mutation subgroups was also different, with 83.3% (5/6) in the BRAF mutation group, 100.0% (2/2) in the c-KIT mutation group, and 100.0% in the N-RAS mutation group (9/9), 50.0% (1/2) in the PDGFRA mutation group, and 50.0% (1/2) in group with 2-gene mutation, and 44.4% (20/45) in the wild type gene group, and the difference was statistically significant (P=0.004). There was no correlation between p-Rb expression levels and age, gender, stage, ulcer, and serum LDH levels. The median overall survival (OS) of patients with positive p-Rb expression was slightly shorter than that of the patients with negative expression (30.0 vs 39.2 months), but the difference was not statistically significant (P=0.555). Conclusion: More than half of the advanced melanoma tissues have positive expression of p-Rb, and the positive rate of p-Rb in non-acral cutaneous type is higher than that of acral and mucosal types.And the positive rate of p-Rb in melanoma tissues of patients carrying c-KIT and N-RAS mutations is higher.
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Bacteriophage lysin is characterized by high stability, wide bactericidal activity and efficacy, and safty. It is able to lyse bacteria specifically and is not susceptible to bacterial resistance. In the presence of phage, phage infecting bacteria and coding for endolysin then it lyse the bacteria, In the absence of the phage, holin assists the endolysin lysis the bacteria from external. In addition, the research progress on the treatment of Gram-positive bacteria, such as methicillin-resistant Staphylococcus aureus, Streptococcus pyogenes, and Gram-negative bacteria, such as Acinetobacter baumannii and Pseudomonas aeruginosa, was also discussed in this paper.
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The clinical manifestations of five children with paroxysmal kinesigenic dyskinesia (PKD) were retrospectively analyzed and their gene mutations were analyzed by high-throughput sequencing and chromosome microarray. The 5 patients consisted of 4 males and 1 female and the age of onset was 6-9 years. Dyskinesia was induced by sudden turn movement, scare, mental stress, or other factors. These patients were conscious and had abnormal posture of unilateral or bilateral extremities, athetosis, facial muscle twitching, and abnormal body posture. The frequency of onset ranged from 3-5 times a month to 2-7 times a day, with a duration of <30 seconds every time. Electroencephalography showed no abnormality in these patients. Three patients had a family history of similar disease. The high-throughput sequencing results showed that a heterozygous mutation in the PRRT2 gene, c.649_650insC (p.R217PfsX8), was found in two patients; the mutation c.436C>T (p.P146S) was found in one patient; a splice site mutation, IVS2-1G>A, was found in one patient. The two mutations c.436C>T and IVS2-1G>A had not been reported previously. The chromosome microarray analysis was performed in one patient with negative results of gene detection, and the chromosome 16p11.2 deletion (0.55 Mb) was observed. Low-dose carbamazepine was effective for treatment of the 5 patients. PKD is a rare neurological disease. The detection of the PRRT2 gene by multiple genetic analysis can help the early diagnosis of PKD.
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Child , Female , Humans , Male , Carbamazepine , Therapeutic Uses , Chromosome Deletion , Chromosomes, Human, Pair 16 , Dystonia , Diagnosis , Drug Therapy , Genetics , Electroencephalography , Membrane Proteins , Genetics , Mutation , Nerve Tissue Proteins , GeneticsABSTRACT
Objective To investigate the effect of fluid shear stress (FSS) on VWF-A1A2A3-mediated expression of platelet surface P-selectin. Methods Using a parallel plate flow chamber system and mouse anti-human CD62P: FITC as the indicator of P-selectin expression, the alteration of platelet P-selectin expression level with increasing exposure time under different FSS conditions (0, 1, 2 Pa) specifically mediated by VWF-A1A2A3 was observed and analyzed by fluorescence microscope to obtain the activation characteristics. Results FSS triggered platelet activation and P-selectin expression. The activation ratio of platelet was positively regulated by FSS and their exposure time, reaching the maximum value, 9.42% and 14.59% under FSS of 1 Pa and 2 Pa, respectively. The level of P-selectin expression exhibited two-phase tendency with the shear stress-exposure time increasing, uplifted at first, then decreased, with the best action time at 7.5 min. The fluorescence peak intensity increased when FSS was enhanced. Conclusions The level of platelet P-selectin expression is co-regulated by VWF-A1A2A3 and FSS, and is closely related to force-signaling exposure time.
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Objective To investigate the effect of fluid shear stress (FSS) on VWF-A1A2A3-mediated expression of platelet surface P-selectin.Methods Using a parallel plate flow chamber system and mouse anti-human CD62P:FITC as the indicator of P-selectin expression,the alteration of platelet P-selectin expression level with increasing exposure time under different FSS conditions (0,1,2 Pa) specifically mediated by VWF-A1A2A3 was observed and analyzed by fluorescence microscope to obtain the activation characteristics.Results FSS triggered platelet activation and P-selectin expression.The activation ratio of platelet was positively regulated by FSS and their exposure time,reaching the maximum value,9.42% and 14.59% under FSS of 1 Pa and 2 Pa,respectively.The level of P-selectin expression exhibited two-phase tendency with the shear stress-exposure time increasing,uplifted at first,then decreased,with the best action time at 7.5 min.The fluorescence peak intensity increased when FSS was enhanced.Conclusions The level of platelet P-selectin expression is co-regulated by VWF-A1A2A3 and FSS,and is closely related to force-signaling exposure time.
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Objective To investigate the effect of fluid shear stress (FSS) on VWF-A1A2A3-mediated expression of platelet surface P-selectin.Methods Using a parallel plate flow chamber system and mouse anti-human CD62P:FITC as the indicator of P-selectin expression,the alteration of platelet P-selectin expression level with increasing exposure time under different FSS conditions (0,1,2 Pa) specifically mediated by VWF-A1A2A3 was observed and analyzed by fluorescence microscope to obtain the activation characteristics.Results FSS triggered platelet activation and P-selectin expression.The activation ratio of platelet was positively regulated by FSS and their exposure time,reaching the maximum value,9.42% and 14.59% under FSS of 1 Pa and 2 Pa,respectively.The level of P-selectin expression exhibited two-phase tendency with the shear stress-exposure time increasing,uplifted at first,then decreased,with the best action time at 7.5 min.The fluorescence peak intensity increased when FSS was enhanced.Conclusions The level of platelet P-selectin expression is co-regulated by VWF-A1A2A3 and FSS,and is closely related to force-signaling exposure time.
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<p><b>OBJECTIVE</b>We aimed to evaluate goiter prevalence and iodine nutritional status in areas with high levels of water iodine; to monitor the prevalence of iodine deficiency disorders (IDD) in areas at high risk of IDD; and to compare the prevalence of goiter and urine iodine (UI) concentrations between children living in the two areas.</p><p><b>METHODS</b>Based on surveillance from 2012-2014, we analyzed the concentration of UI and prevalence of goiter in 8-10-year-old children from 12 high-risk IDD provinces, and from 8 provinces and municipalities with excessive water iodine. We calculated goiter prevalence for each UI level according to World Health Organization (WHO) standards and constructed predictive prevalence curves.</p><p><b>RESULTS</b>The goiter prevalence and median UI of children from areas with high water iodine were not optimal, being above the WHO standards (5% and 100-199 μg/L, respectively), whereas those in high-risk areas fell within the standard. UI and goiter prevalence exhibited a U-shaped relationship in high-risk endemic areas and a parabolic relationship in areas of iodine excess.</p><p><b>CONCLUSION</b>Iodine surplus in high-iodine areas leads to high goiter prevalence and UI. However, in high-risk areas, UI was optimal and goiter prevalence met the national criteria for IDD elimination.</p>
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Child , Female , Humans , Male , China , Epidemiology , Dose-Response Relationship, Drug , Goiter , Epidemiology , Iodine , Urine , Prevalence , Risk FactorsABSTRACT
<p><b>OBJECTIVE</b>To investigate the possible mechanisms of miR-21-mediated regulation of proliferation and activation of hepatic oval cells.</p><p><b>METHODS</b>The 2-acetamidofluorene/partial hepatectomy (2-AAF/PH) method was applied to generate hepatic oval cell activation model in male Sprague-Dawley rats; after the 7 days of 2-AAF/PH or PH alone (control), the rats were sacrificed at 0 h, 6 h, 12 h, 24 h, 72 h and 168 h. Expression of miR-21 was detected by real-time PCR and differences between groups were evaluated using the two-sample t-test. Differential transcription of miR-21 target genes was assessed bioinformatically, and with western blotting to detect changes in protein expression of the target gene.</p><p><b>RESULTS</b>The rat hepatic oval cell activation model was successfully established.The 2-AAF/PH rats showed miR-21 expression beginning to increase at 12 h, peaking at 24 h, and decreasing thereafter until an increase at 168 h.For the control group, the miR-21 expression began to increase at 6 h, until 24 h when expression began steadily declining to reach the original level.Compared to the control group, the experimental group showed expression of miR-21 that was significantly less at 6 h (P=0.039, t =3.029) and significantly more at 24 h and 168 h (P=0.026, t =-3.433 and P=0.007, t =-5.105). Among the predicted target genes of miR-21 were WW domain containing E3 ubiquitin protein ligase 1 (WWD), Smad family member 7 (Smad7), and polybromo-1 (Pbrm1).Smad7 protein expression began to decrease at 6 h in the control group, until reaching its minimum at 24 h when it increased; in the experimental group, SMAD7 expression increased at 6 h, then began to decrease with the minimum detected at 168 hour.In the control group, the Smad7 mRNA expression decreased slightly at 6 h, then began to increase, reaching its peak at 24 h when the expression fell to the original level. In the experimental group, the Smad7 mRNA expression began to increase at 6 h and reached its peak at 24 h when it decreased; the expression was little more than its original level at 168 h.Smad7 protein expression was negatively correlated with miR-21, and Smad7 mRNA expression was positively correlated with miR-21 but negatively correlated with Smad7 protein expression.</p><p><b>CONCLUSION</b>miR-21 may play a vital role in the activation and proliferation of hepatic oval cells.As a target gene of miR-21, Smad7 might be involved in the process.</p>
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Animals , Male , Rats , 2-Acetylaminofluorene , Cell Proliferation , Hepatectomy , Hepatocytes , Cell Biology , Liver , Cell Biology , MicroRNAs , Genetics , Rats, Sprague-Dawley , Real-Time Polymerase Chain ReactionABSTRACT
<p><b>OBJECTIVE</b>To observe the difference in the efficacy on traumatic nerve injury among electroacupuncture, warm needling therapy and electroacupuncture plus warm needling therapy and explore the better therapeutic method.</p><p><b>METHODS</b>The electromyography (EMG) and electroneurography (ENG) of 93 cases showed traumatic nerve injury of moderate damage. According to the single blind randomization principle, they were divided into an electroacupuncture (EA) group, a warm needling therapy (WN) group and an EA plus WN group, 31 cases in each one. The main acupoints were selected from Yangming Meridian and Shaoyang Meridian corresponding to the distribution of damaged nerves. EA, WN and EA plus WN were applied separately. The treatment was given once every day, 15 treatments made one session. After 3 sessions of treatment (45 treatments in total), EMG and ENG were re-checked and the results were analyzed statistically.</p><p><b>RESULTS</b>Regarding the total effective rate and effective rate, it was 96. 8% (30/31) in the EA plus WN group, which was better than 74.2% (23/31) in the EA group and 77. 4% (24/31) in the WN group (P<0. 05). Concerning to the improvements of EMG, the result in the EA plus WN group was 96.8% (30/31), which was better than the other two groups [74. 2%(23/31),74. 2%(23/31)] (P<0. 05). In terms of the recovery of nerve conduction and amplitude, the results in EA plus WN group [(50.9+/-4. 6)m/s,(8. 8+/-2. 9),microVx1 000] were better than the other two groups [(43.7+/-3.1)m/s,(4. 2+/-1. 9)microV X 1 000,(43. 8+/-3. 3)m/s,(4. 5+/-2. 2)microV X 1 000] (P<0. 05).</p><p><b>CONCLUSION</b>EA combined with WN is a better therapy of acupuncture and moxibustion in the treatment of traumatic nerve injury.</p>
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Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Acupuncture Therapy , Peripheral Nerve Injuries , Therapeutics , Treatment OutcomeABSTRACT
To establish a fluorescent quantitative PCR method (FQ-PCR) with TaqMan probe for simultaneous detection of polyomavirus (BKV) and cytomegalovirus (CMV) and to evaluate its clinical application in the renal transplantation recipients. The conservative sequences of BKV and CMV were targeted and amplified by nested PCR technique. The PCR products were cloned into the plasmids pcDNA3. 1(+). The recombinant plasmid containing target sequences of BKV and CMV were constructed as external standards. The TaqMan-based assay was optimized. For evaluating the assay, the sensitivity was determinated by diluted standard (5 X 103-10icopies/mL), and the specificity was verified by negative control and positive control, and the precision was assessed by intra-assay coefficient of variation (ICV) through detecting standard repeatedly (20 times). A total of 480 blood samples of renal transplantation recipients were used to detect BKV and CMV DNA simultaneously with FQ-PCR, and the concentrations of FK506 were measured by ELISA. The association of DNA copy and concentrations of FK506 was analyzed. The cloned target BKV and CMV DNA was confirmed by sequencing and analysis. The sensitivity of the FQ-PCR assay reached 5 X 103 copies/ml in detecting BKV or CMV DNA. Control DNA verified the assay specifically detecting target DNA. The precision of the assay to quantif target DNA copies was acceptable (Intra-assay CV was 3.44% for BKV and 2.23% for CMV; Inter-assay CV was 4. 98% for BKV and 3.76% for CMV;). Of 480 samples, 130 samples (27. 08%) were CMV DNA positive, significantly higher than the BKV DNA positive (13.33%, 64/480, P<0.05). The positive BKV or CMV DNA was found to be associated with high concentrations of FK506 (P<0. 05). In conclusion, the developed real-time PCR assay for detecting both CMV and BKV DNA simultaneously was s high sensitive, precise and time-effectiveand could be applied in the monitoring of the CMV and BKV infection in the renal transplantation recipients.
Subject(s)
Adolescent , Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Conserved Sequence , Cytomegalovirus , Genetics , Cytomegalovirus Infections , Diagnosis , Virology , DNA, Viral , Blood , Immunosuppressive Agents , Blood , Kidney Transplantation , Polyomavirus , Genetics , Polyomavirus Infections , Diagnosis , Virology , Real-Time Polymerase Chain Reaction , Methods , Reproducibility of Results , Sensitivity and Specificity , Species Specificity , Tacrolimus , Blood , Time Factors , Tumor Virus Infections , Diagnosis , Virology , Viral LoadABSTRACT
@#Objective To explore pharmacy services on a patient with sigmoid colon cystoplasty for neurogenic bladder by clinical pharmacist.Methods A case accepted sigmoid colon cystoplasty for neurogenic bladder was reported. Results and Conclusion Pharmaceutical care can improve the rational use of drugs and reduce side effect.
ABSTRACT
<p><b>OBJECTIVE</b>To determine the incidence of post-operative delirium after oral and maxillofacial surgery under general anesthesia in elderly patients, and to examine its association with plasma concentrations of beta amyloid protein 1-40 (Abeta1-40).</p><p><b>METHODS</b>Fifty patients underwent elective oral and maxillofacial surgery were divided into two groups: Group C (n=20) aged from 20 to 60 years old, and Group T (n=30) aged from 62 to 78 years old. The two group received the same general anesthesia. Delirium rating scale-revised-98 (DRS-R-98) was used as an instrument to diagnose and access the postoperative delirium of the two groups. The scores of DRS-R-98 were recorded before operation (T0) and at 24 h (T1), 48 h (T2), 72 h(T3) and 96 h(T4) after the operation. Serial measurements of serum concentrations of Abeta1-40 were also performed at the same time.</p><p><b>RESULTS</b>The incidence of post-operative delirium after oral and maxillofacial surgery in Group T was 20.0%. The concentrations of plasma Abeta1-40 in group T were much higher than group C at TO, T1, T2 and T3 significantly (P < 0.01). The concentrations of plasma Abeta1-40 at T1 and T2 were higher than those at TO in the same group (P < 0.05). The scores of DRS-R-98 in Group T at T3 and T4 were much higher than those at T1 and Group C significantly (P < 0.01).</p><p><b>CONCLUSION</b>The constant increase of plasma Abeta1-40 may be one of the important factors related to post-operative delirium in elderly patients underwent oral and maxillofacial surgery.</p>