1.Relative factors on the delayed encephalopathy after acute carbon monoxide poisoning and the study of P_(300)
Heping JIA ; Rongzhen ZHENG ; Xian CUI
Journal of Clinical Neurology 2001;0(05):-
Objective To explore the relative factors on delayed encephalopathy after acute carbon monoxide poisoning(DEACMP)and the signifiance of P 300 for judging the severity and prognosis of DEACMP.Methods Thirteen aspects such as contact time with carbon monoxide (CO)?coma time et al were analysed between 44 patients with DEACMP (DEACMP group)and 42 patients with acute CO poisoning but without DEACMP (ACMP group). P 300 s were studied in the patients with P 300 as compared with the patients had just caught acute CO poisoning (DEACMP group).and 44 normal controls (NC group).Results There was extremely significant difference in contact time with CO,coma lasting time,treatment time with hyperbaric oxygen,age,complication ( P
2.Determination of Indigo Content in Qingxin Sushitie by HPLC
Rongzhen PENG ; Guoshen ZHENG ; Guangliang LUO
Traditional Chinese Drug Research & Clinical Pharmacology 2000;0(06):-
Objective To establish a method for the determination of indigo content in Qingxin Sushitie by HPLC. Methods At 30℃, HPLC was performed to determine indigo on ODS column(4.6?250 mm), the mobile phase was composed of methanol-acetonitrile-0.1mol/L ammonium acetate(60: 4: 36), flow rate was 1.0 mL/min; injection volume was 20 ?L and detection wavelength at 280 nm. Results The linearity of indigo was good within 0.44~6.60 ?g/mL (r=0.9991), the average recovery was 103.6% and RSD=1.11%. Conclusion This method is simple, sensitive and accurate, and can be used for quality control of Qingxin Sushitie.
3.Value of quantitatively analyzing tissue perfusion parameters of contrast enhanced ultrasound in the evaluation of antiangiogenic therapeutics effect in a mouse hepatoma model
Jianhua ZHOU ; Wei ZHENG ; Min LIU ; Rongzhen LUO ; Feng HAN ; Anhua LI
Chinese Journal of Ultrasonography 2010;19(11):993-996
Objective To evaluate the value of quantitatively analyzing tissue perfusion parameters of contrast-enhanced ultrasound in the evaluation of antiangiogenic therapeutics effect. Methods Kun-min mouse were subcutaneously implanted with H22 cells. Ten mouse were treated with thalidomide (200 mg/kg once daily) by intraperitoneal injection over 7 days,starting at day 2 post-implantation. Ten control mouse were treated with an equivalent volume of 0.5 CMC. Contrast-enhanced gray-scale ultrasound was performed on day 8 after bolus injection of SonoVue (0.1 ml) and the imaging was recorded on cine.Regions of interest within tumour were analyzed off-line with the software of SonoLiver to determine the area under the curve (AUC), maximum intensity (Imax), perfusion index (PI), mean transit time (mTT),time to peak (TTP) and quality of fit (QOF). Immediately after imaging, minces were euthanized and tumour tissue removed for fixation in a 10% formalin solution. Microvascular density (MVD) was measured after anti-CD34 staining. Results The body weight and the tumor volume of treated tumors were significant different (lower) than that of control tumors (P <0.05). Treatment with thalidomide resulted into a significant decrease in AUC,PI and Imax in comparison with control tumors ( P <0.05). There were no significant difference in mTT and TTP between control and treated tumours ( P >0.05). Treated tumours were associated with a significantly lower MVD as compared with control tumours( P <0.05). ConclusionsQuantitatively analyzing tissue perfusion parameters of contrast enhanced ultrasound shows promise for monitoring tumor response to antiangiogenic therapy.
4.Analysis of paper publishing conditions by postgraduate background staff in an upper first-class hospital in Guangxi Province during 2010-2014
Lianfeng LI ; Rongzhen MO ; Xiangdong WANG ; Yuyun XIA ; Gui BAI ; Zheng LI ; Gang MA
Chinese Journal of Medical Science Research Management 2017;30(2):151-154
Objective Based on the analysis of papers published by postgraduate background staff from an upper first-class hospital in Guangxi during 2010-2014,claimed that the medical scientific research administrators should pay more attention and give more support to such staff.Methods Literature metrology method was used to describe and analyze the hospital staff,postgraduate staff resource composition and published papers from the annual growth rate,per capita,constituent ratio,quantitative analysis of core authors group.Results In the latest five years,the hospital postgraduate staff had published 169 papers,143 papers were published in statistical source journals or SCI;the amount of paper publication increased annually,the average of per author published paper was 0.39;but the quality still has a lot space for improvement.Conclusions Although the amount of paper publication by postgraduate background staff increased annually,the average paper number published per author showed the features of great fluctuation,the quality of those papers should be improved.The core authors were formed,but the quantity of this author group needs to be increased,as well as the scientific quality of those core authors.
5.Triptolide induces apoptosis of human acute T lymphocytic leukemia Jurkat cells via inhibiting transcription of human endogenous retrovirus HERV-K Np9 gene.
Jianghua CHEN ; Weiwei ZHENG ; Xudong JIANG ; Xiaoya LU ; Rongzhen XU
Journal of Southern Medical University 2015;35(5):702-706
OBJECTIVETo investigate the molecular?mechanisms by which triptolide induces apoptosis of human acute T lymphocytic leukemia Jurkat cells.
METHODSMTT assay was employed to detect the proliferation inhibition of Jurkat cells by triptolide, and the IC50 was calculated by OriginPro8. Flow cytometry was used to analyze apoptosis of Jurkat cells. Np9 mRNA levels were detected by RT-PCR and analyzed quantitatively by Kodak 1D 3.6 software. Correlation between the inhibition of Np9 transcription and the cell apoptosis was analyzed by SPSS 19.0.Western blotting was employed to determine Np9 downstream signaling molecules c-myc, β-catenin, ERK, AKT and Notch1 protein level in Jurkat cells after exposure to different concentrations of triptolide for 48 h.
RESULTSTriptolide treatment resulted in dose-dependent inhibition of Jurkat cells proliferation and its IC50 was 12.7 nmol/L. Triptolide induced apoptosis of Jurkat cells in dose- dependent manner. Furthermore, triptolide inhibited Np9 mRNA transcription level in Jurakt cells in a dose-dependent manner. There was a correlation between the triptolide-mediated the apoptosis and the inhibition of Np9 transcription of Jurkat cells (R(2)=0.907). Western blotting results displayed that triptolide inhibited transcription levels of Np9 mRNA with a concomitant decrease of its downstream signaling molecules c-myc, β-catenin, ERK, AKT and Notch1 at protein levels.
CONCLUSIONInhibition of HERV-K Np9 mRNA and its downstream signaling molecules c-myc, β-catenin, ERK, Akt and Notch1 protein might be one of important molecular?mechanisms by which triptolide induces apoptosis of human acute T lymphocytic leukemia Jurkat cells.
Apoptosis ; drug effects ; Diterpenes ; pharmacology ; Endogenous Retroviruses ; genetics ; Epoxy Compounds ; pharmacology ; Flow Cytometry ; Gene Products, env ; genetics ; Humans ; Jurkat Cells ; drug effects ; Phenanthrenes ; pharmacology ; Precursor T-Cell Lymphoblastic Leukemia-Lymphoma ; pathology ; Transcription, Genetic
6.Triptolide induces apoptosis of human acute T lymphocytic leukemia Jurkat cells via inhibiting transcription of human endogenous retrovirus HERV-K Np9 gene
Jianghua CHEN ; Weiwei ZHENG ; Xudong JIANG ; Xiaoya LU ; Rongzhen XU
Journal of Southern Medical University 2015;(5):702-706
Objective To investigate the molecular mechanisms by which triptolide induces apoptosis of human acute T lymphocytic leukemia Jurkat cells. Methods MTT assay was employed to detect the proliferation inhibition of Jurkat cells by triptolide, and the IC50 was calculated by OriginPro8. Flow cytometry was used to analyze apoptosis of Jurkat cells. Np9 mRNA levels were detected by RT-PCR and analyzed quantitatively by Kodak 1D 3.6 software. Correlation between the inhibition of Np9 transcription and the cell apoptosis was analyzed by SPSS 19.0.Western blotting was employed to determine Np9 downstream signaling molecules c-myc,β-catenin, ERK, AKT and Notch1 protein level in Jurkat cells after exposure to different concentrations of triptolide for 48h. Results Triptolide treatment resulted in dose-dependent inhibition of Jurkat cells proliferation and its IC50 was 12.7nmol/L. Triptolide induced apoptosis of Jurkat cells in dose-dependent manner. Furthermore, triptolide inhibited Np9 mRNA transcription level in Jurakt cells in a dose-dependent manner. There was a correlation between the triptolide-mediated the apoptosis and the inhibition of Np9 transcription of Jurkat cells (R2=0.907). Western blotting results displayed that triptolide inhibited transcription levels of Np9 mRNA with a concomitant decrease of its downstream signaling molecules c-myc,β-catenin, ERK, AKT and Notch1 at protein levels. Conclusion Inhibition of HERV-K Np9 mRNA and its downstream signaling molecules c-myc, β-catenin, ERK, Akt and Notch1 protein might be one of important molecular mechanisms by which triptolide induces apoptosis of human acute T lymphocytic leukemia Jurkat cells.
7.Triptolide induces apoptosis of human acute T lymphocytic leukemia Jurkat cells via inhibiting transcription of human endogenous retrovirus HERV-K Np9 gene
Jianghua CHEN ; Weiwei ZHENG ; Xudong JIANG ; Xiaoya LU ; Rongzhen XU
Journal of Southern Medical University 2015;(5):702-706
Objective To investigate the molecular mechanisms by which triptolide induces apoptosis of human acute T lymphocytic leukemia Jurkat cells. Methods MTT assay was employed to detect the proliferation inhibition of Jurkat cells by triptolide, and the IC50 was calculated by OriginPro8. Flow cytometry was used to analyze apoptosis of Jurkat cells. Np9 mRNA levels were detected by RT-PCR and analyzed quantitatively by Kodak 1D 3.6 software. Correlation between the inhibition of Np9 transcription and the cell apoptosis was analyzed by SPSS 19.0.Western blotting was employed to determine Np9 downstream signaling molecules c-myc,β-catenin, ERK, AKT and Notch1 protein level in Jurkat cells after exposure to different concentrations of triptolide for 48h. Results Triptolide treatment resulted in dose-dependent inhibition of Jurkat cells proliferation and its IC50 was 12.7nmol/L. Triptolide induced apoptosis of Jurkat cells in dose-dependent manner. Furthermore, triptolide inhibited Np9 mRNA transcription level in Jurakt cells in a dose-dependent manner. There was a correlation between the triptolide-mediated the apoptosis and the inhibition of Np9 transcription of Jurkat cells (R2=0.907). Western blotting results displayed that triptolide inhibited transcription levels of Np9 mRNA with a concomitant decrease of its downstream signaling molecules c-myc,β-catenin, ERK, AKT and Notch1 at protein levels. Conclusion Inhibition of HERV-K Np9 mRNA and its downstream signaling molecules c-myc, β-catenin, ERK, Akt and Notch1 protein might be one of important molecular mechanisms by which triptolide induces apoptosis of human acute T lymphocytic leukemia Jurkat cells.
8.Exploration on Targeted Pulmonary Vascular Remodeling for the Treatment of Pulmonary Hypertension Based on Collateral Disease Theory
Xianya CAO ; Junlan TAN ; Runxiu ZHENG ; Jian YI ; Guoran PENG ; Rongzhen DING ; Xia LI ; Feiying WANG ; Aiguo DAI
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(9):18-23
Pulmonary hypertension(PH)is a progressive pulmonary vascular disease that can lead to right heart failure and death.In recent years,the incidence of PH has been increasing year by year and there is a lack of effective treatment.TCM can play an important synergistic role in the treatment of PH.Pulmonary vascular remodeling is a core pathological feature of PH,which is closely related to the physiological structure and pathological changes of the collaterals.Based on the collateral disease theory,this article described the key pathogenesis of PH in TCM and Western medicine,including the lesions of the pulmonary and cardiovascular complexes and pulmonary vascular remodeling,analyzed the physiology of the"collateral-vessel"in PH,sorting out the pathological correlation,and explored TCM targeting pulmonary vascular remodeling in the identification and treatment of PH,so as to provide a new way of thinking for the clinical treatment of PH.
9.Construction and practice of the theory of “turbid toxin pathogenesis” and related prevention and treatment strategies for hepatic encephalopathy in traditional Chinese medicine/Zhuang medicine
Zhipeng WU ; Yuqin ZHANG ; Chun YAO ; Minggang WANG ; Na WANG ; Mengru PENG ; Ningfang MO ; Yaqing ZHENG ; Rongzhen ZHANG ; Dewen MAO
Journal of Clinical Hepatology 2025;41(2):370-374
Hepatic encephalopathy is a difficult and critical disease with rapid progression and limited treatment methods in the field of liver disease, and it is urgently needed to make breakthroughs in its pathogenesis. Selection of appropriate prevention and treatment strategies is of great importance in delaying disease progression and reducing the incidence and mortality rates. This article reviews the theory of “turbid toxin pathogenesis” and related prevention and treatment strategies for hepatic encephalopathy in traditional Chinese medicine/Zhuang medicine, proposes a new theory of “turbid toxin pathogenesis”, analyzes the scientific connotations of “turbid”, “toxin”, and the theory of “turbid toxin pathogenesis”, and constructs the “four-step” prevention and treatment strategies for hepatic encephalopathy, thereby establishing the new clinical prevention and treatment regimen for hepatic encephalopathy represented by “four prescriptions and two techniques” and clarifying the effect mechanism and biological basis of core prescriptions and techniques in the prevention and treatment of hepatic encephalopathy, in order to provide a reference for the prevention and treatment of hepatic encephalopathy.