1.Antidiabetic and insulin-sensitizing effects of neoglitazone in different animal models of type 2 diabetes
Xianghui HAN ; Zean LU ; Wei ZHOU
Chinese Journal of New Drugs and Clinical Remedies 2008;27(9):652-659
AIM To assess antidiabetic and insulin sensitizing effect of a novel thiazolidinedione,neoglitazone, in different animal models of type 2 diabetes. METHODS Neoglitazone combined with low-dose insulin(0.2U·d-1 per mouse,sc)were given in streptozotiocin (STZ)-induced diabetic mice for 7 d to inspect its insulin-sensitive improvement. The antidiabetic effect of chronic oral treatment (8 wk) with neoglitazone on spontaneous diabetes mice (DB/DB mice) was examined. The levels of blood glucose were measured by a One-Touch blood glucose meter and pathology of heart, kidney, and pancreas tissues were observed under a light microscope. The hyperinsulinaemic-euglycaemic clamp technique was applied to measure the increase of glucose infusion rate (GIR) of neoglitazone on the immune insulin-resistant rats induced by Bacillus Calmette-Guerin therapy decreased ( 14±s4)%, (55±24)%,and (28±7)% of blood glucose levels compared with CMC-Na+insulin group, respectively (P < 0.01) . In DB/DB mice, neoglitazone showed better reduction in blood glucose levels than those of model animals (P < 0.01) , and pathological studies indicated that neoglitazone attenuated the diabetic kidney and pancreas lesions. During a hyperinsulinaemic-euglycaemic clamp,neoglitaxone(10,30,and 100mg·kg-1·d-1,ig for 2 wk )-treated groups required significantly higher GIR to maintain basal glucose concentrations than model group (P < 0.01 ). CONCLUSION Neoglitazone could directly enhance insulin sensitivity and ameliorate insulin resistance in different diabetic animal models.
2.Inhibitory effects of osthole, psoralen and aconitine on invasive activities of breast cancer MDA-MB-231BO cell line and the mechanisms.
Baofeng GUO ; Sheng LIU ; Yiyi YE ; Xianghui HAN
Journal of Integrative Medicine 2011;9(10):1110-7
To explore the inhibitory effects and to investigate the mechanisms of combined treatment of osthole, psoralen with aconitine on human breast cancer cell line MDA-MB-231BO.
3.Effects of platycodin D in combination with different active ingredients of Chinese herbs on proliferation and invasion of 4T1 and MDA-MB-231 breast cancer cell lines.
Xianghui HAN ; Yiyi YE ; Baofeng GUO ; Sheng LIU
Journal of Integrative Medicine 2012;10(1):67-75
To investigate the effects of platycodin D in combination with different active ingredients of Chinese herbs under different therapeutic principles on proliferation and invasion of 4T1 and MDA-MB-231 breast cancer cell lines.
4.Study Progress on Breast Cancer Metastasis to Bone Treated with Chinese Herbs
Xiaohui ZHANG ; Xianghui HAN ; Sheng LIU ; Chunli WANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(6):1447-1450
Bone is the most common metastatic site of breast cancer . And breast cancer metastasis to bone can lead to osteoporosis , hypercalcemia , spinal cord compression and pathological fracture , which seriously impact the patientsˊ quality of life and survival . Chinese herbs have a potential advantage in the treatment of breast cancer metastasis to bone. In recent ten years, a number of studies showed that Chinese medicine monomers, traditional Chinese medicine (TCM) extracts, and Chinese herbal compound prescriptions played a role in in-hibiting breast cancer cell proliferation , invading and relieving the bone destruction and bone pain by different molecular mechanisms .
5.Expression of polycomb protein SUZ12 predicts poor prognosis and response of patients with intrahepatic cholangiocarcinoma to adjuvant gemcitabine-based chemotherapy
Nan LIU ; Zhiyang HAN ; Pengtian LU ; Danyang LI ; Yingwei WANG ; Xianghui DONG ; Hong ZHU
Practical Oncology Journal 2017;31(4):321-328
Objective This study explored the expression of polyclonal protein SUZ12 in patients with intrahepatic cholangiocarcinoma(ICC),and its role in predicting the survival and treatment of ICC patients.Methods The expression of SUZ12 and p16INK4a was detected by immunohistochemical assay in 207 liver tissue samples including ICC patients,BilIN-1,-2,-3 and non-tumor-like cholangiocarcinoma.The expression of these proteins was assessed to be related to the pathological characteristics of the ICC patients receiving chemotherapy and the outcome of survival as well as the subsequent chemotherapy response.Results The expression level of SUZ12 was gradually increased from non-neoplastic bile duct tissue to BilIN-1,-2,-3 and ICC.The expression of p16INK4a protein was expressed in non-neoplastic-like cholangiocarcinoma,but it decreased gradually in BilIN-1,-2,-3 and ICC tissues.SUZ12 expression was associated with undifferentiated ICC,lymph node metastasis and advanced cancer.Kaplan-Meier curve analysis showed that ICC patients with high expression of SUZ12 had a significant reduction in overall survival and disease-free survival in comparison with ICC patients with the low expression of SUZ12.SUZ12 expression was significantly associated with overall survival of patients receiving adjuvant gemcitabine-based chemotherapy(AGC).Conclusion SUZ12 expression is able to predict the overall survival and disease-free survival of ICC patients with adjuvant gemcitabine-based chemotherapy.
6.Effects of Guanxinkang on expressions of ATP-sensitive potassium channel subunits Kir6.1, Kir6.2, SUR2A and SUR2B in ischemic myocytes of rats.
Furong CHEN ; Na ZHANG ; Ping LIU ; Yiyi ZHANG ; Xianghui HAN ; Juefeng CAI
Journal of Integrative Medicine 2010;8(5):458-64
Objective: To observe the effects of Guanxinkang injection, a compound traditional Chinese herbal medicine, on ATP-sensitive potassium (K(ATP)) channel subunits in ischemic myocardial cells of rats, and to explore the mechanism of Guanxinkang in protecting myocardial ischemic reperfusion injuries. Methods: Forty-eight Wistar rats were randomly divided into normal group, untreated group, glibenclamide group, pinacidil group, Guanxinkang group and Guanxinkang plus glibenclamide group. The ventricular myocytes were prepared from hearts of normal rats by enzymatic dissociation method. The ischemic ventricular myocytes underwent perfusion with normal Tyrode solution for 10 min, then stopping perfusion 30 min, and followed by 45 min of reperfusion. The glibenclamide, pinacidil and Guanxinkang were added into ventricular myocytes solution directly. Then the solutions were placed at 4 degrees centigrade. After 24-hour freezing at -80 degrees centigrade, mRNA and protein expressions of KATP subunits Kir6.1, Kir6.2, SUR2A and SUR2B were measured by real-time quantitative polymerase chain reaction and Western blotting respectively. Results: In normal rat myocardial cells, there were SUR2A, Kir6.1, and Kir6.2 protein and gene expressions but no expression of SUR2B protein. In the untreated group, all subunit mRNA and protein expressions of KATP increased to some extent as compared with the normal group. Pinacidil, a potassium channel opener, significantly increased mRNA and protein expressions of KATP subunits, while the blocker glibenclamide had a reverse effect. Meanwhile, Guanxinkang injection significantly increased mRNA and protein expressions of K(ATP) subunits but with no significant difference as compared with pinacidil. Conclusion: Guanxinkang injection can obviously enhance the open of KATP channel and thus play a role in cardiovascular protection.
7.Effects of serum containing Fructus Cnidii and Psoralea corylifolia on highly metastatic human breast cancer cell line MDA-MB-231BO and bone marrow stromal cell line ST-2.
Sheng LIU ; Xiaoyun SONG ; Chunyu WU ; Xianghui HAN ; Linglin LIU ; Jianwen LIU ; Yichun XU
Journal of Integrative Medicine 2010;8(9):877-82
Objective: To explore the effects of different proportions of Fructus Cnidii (Shechuangzi) and Psoralea corylifolia (Buguzhi) on highly metastatic human breast cancer cell line MDA-MB-231BO and bone marrow stromal cell line ST-2 in vitro. Methods: Thirty-six female SD rats were randomly divided into 6 groups to prepare the drug-medicated sera by administering with different proportions of Fructus Cnidii and Psoralea corylifolia, including 4:0 group, 3:1 group, 1:1 group, 1:3 group, 0:4 group and control group. MDA-MB-231BO cells and ST-2 cells were cultured in Dulbecco's modified Eagle's medium containing drug-medicated serum. Inhibition rates of MDA-MB-231BO cells and ST-2 cells were measured by methyl thiazolyl tetrazolium (MTT) method; migration ability of MDA-MB-231BO cells was tested by a cell migration experiment; alkaline phosphatase activity (ALP) of ST-2 cells was measured by using 4-nitrophenyl phosphate disodium salt, and mineralized nodule formation of ST-2 cells was measured by alizarin red staining. Results: Sera contaning different proportions of Fructus Cnidii and Psoralea corylifolia inhibited the migration activity of MDA-MB-231BO cells as compared with the blank serum, and serum contaning Fructus Cnidii and Psoralea Corylifolia at proportion of 1:1 had the best function (P<0.01). Fructus Cnidii and Psoralea corylifolia at ratio of 1:1 also enhanced the ALP activity of ST2 cells (P<0.05) and increased the number of mineralized nodules of ST2 cells (P<0.01). Conclusion: Kidney-warming recipe of Fructus Cnidii and Psoralea corylifolia can inhibit proliferation and migration of MDA-MB-231BO cells and increase the activity of ST-2 cells.
8.Ferroptosis-related gene and its relationship with prognosis of differentiated thyroid carcinoma patients
Yue HAN ; Zuoyu CHEN ; Lanning JIA ; Xianghui HE
Chinese Journal of Endocrine Surgery 2022;16(4):411-415
Objective:To analyze the marker of ferroptosis-related genes in differentiated thyroid carcinoma (DTC) based on TCGA database.Methods:The mRNA expression profiles and survival information of thyroid cancer patients and normal thyroid samples were downloaded from the TCGA database. The genetic difference analysis added 653 normal thyroid samples from the GETx database. Twenty-two ferroptosis-related genes were selected for univariate Cox regression analysis. Genes associated with prognostic in the TCGA cohort were further screened and prognostic models using LASSO regression was constructed. Adjusted P<0.05 and | log2FC>1" as the threshold, 22 differentially expressed genes were selected. The genes were screened by multivariate Cox regression analysis for prognosis-related genes and displayed in a line diagram. Results:22 of the 24 ferroptosis-related genes were differentially expressed between the tumor and normal tissues, with13 high expression, 9 low expression, 1 gene expression without difference and 1 gene not expressed in half of the samples. Univariate Cox regression analysis found that DPP4 and TFRC were associated with the degree of disease risk (HR was<1 and>1, respectively) . When integrating GPX4, TFRC and DPP4 into the LASSO model screening, it was found to be related to prognosis after dividing the patients into risk groups according to lambda. min=0.0027, Riskscore= (0.7316) * TFRC+ (-0.2539) *DPP4 (Log rank P=0.00635. Multivariate Cox regression analysis found that DPP4 and TFRC were related to the degree of disease risk (HR were<1 and>1, respectively) . Conclusion:The model of TFRC and DPP4 constructed by ferroptosis-related differential expression genes may be potential predictive markers of DTC patients, which still needs further verification and will provide theoretical basis for further clinical treatment.
9.Magnetic Resonance Imaging-Related Anatomic and Functional Parameters for the Diagnosis and Prognosis of Chiari Malformation Type I: A Systematic Review and Meta-analysis
Zairan WANG ; Zhimin LI ; Shiyuan HAN ; Xianghui HU ; Siyuan PANG ; Yongning LI ; Jun GAO
Neurospine 2024;21(2):510-524
Objective:
Imaging parameters of Chiari malformation type I (CMI) development are not well established. This study aimed to collect evidence of general or specific imaging measurements in patients with CMI, analyze indicators that may assist in determining the severity of CMI, and guide its diagnosis and treatment.
Methods:
A comprehensive search was conducted across various databases including the Cochrane Library, PubMed, MEDLINE, Scopus, and Embase, covering the period from January 2002 to October 2023, following predefined inclusion criteria. Meta-analyses were performed using RevMan (ver. 5.4). We performed a quantitative summary and systematic analysis of the included studies. This study was registered in the PROSPERO (International Prospective Register of Systematic Reviews) prior to initiation (CRD42023415454).
Results:
Thirty-three studies met our inclusion criteria. The findings indicated that out of the 14 parameters examined, 6 (clivus length, basal angle, Boogard’s angle, supraocciput lengths, posterior cranial fossa [PCF] height, and volume) exhibited significant differences between the CMI group and the control group. Furthermore, apart from certain anatomical parameters that hold prognostic value for CMI, functional parameters like tonsillar movement, obex displacement, and cerebrospinal fluid dynamics serve as valuable indicators for guiding the clinical management of the disease.
Conclusion
We collated and established a set of linear, angular, and area measurements deemed essential for diagnosing CMI. However, more indicators can only be analyzed descriptively for various reasons, particularly in prognostic prediction. We posit that the systematic assessment of patients’ PCF morphology, volume, and other parameters at a 3-dimensional level holds promising clinical application prospects.
10.Magnetic Resonance Imaging-Related Anatomic and Functional Parameters for the Diagnosis and Prognosis of Chiari Malformation Type I: A Systematic Review and Meta-analysis
Zairan WANG ; Zhimin LI ; Shiyuan HAN ; Xianghui HU ; Siyuan PANG ; Yongning LI ; Jun GAO
Neurospine 2024;21(2):510-524
Objective:
Imaging parameters of Chiari malformation type I (CMI) development are not well established. This study aimed to collect evidence of general or specific imaging measurements in patients with CMI, analyze indicators that may assist in determining the severity of CMI, and guide its diagnosis and treatment.
Methods:
A comprehensive search was conducted across various databases including the Cochrane Library, PubMed, MEDLINE, Scopus, and Embase, covering the period from January 2002 to October 2023, following predefined inclusion criteria. Meta-analyses were performed using RevMan (ver. 5.4). We performed a quantitative summary and systematic analysis of the included studies. This study was registered in the PROSPERO (International Prospective Register of Systematic Reviews) prior to initiation (CRD42023415454).
Results:
Thirty-three studies met our inclusion criteria. The findings indicated that out of the 14 parameters examined, 6 (clivus length, basal angle, Boogard’s angle, supraocciput lengths, posterior cranial fossa [PCF] height, and volume) exhibited significant differences between the CMI group and the control group. Furthermore, apart from certain anatomical parameters that hold prognostic value for CMI, functional parameters like tonsillar movement, obex displacement, and cerebrospinal fluid dynamics serve as valuable indicators for guiding the clinical management of the disease.
Conclusion
We collated and established a set of linear, angular, and area measurements deemed essential for diagnosing CMI. However, more indicators can only be analyzed descriptively for various reasons, particularly in prognostic prediction. We posit that the systematic assessment of patients’ PCF morphology, volume, and other parameters at a 3-dimensional level holds promising clinical application prospects.