1.The Expression of Insulin Receptor Substrate in Human Osteoblast
Qiuxia HUANG ; Houde ZHOU ; Eryuan LIAO
Journal of Chinese Physician 2001;0(05):-
Objective To determine the expression of insulin receptor substract(IRS) family in human osteosarcoma cell line MG-63 and cultured normal human osteoblast-like cells (HOB). Methods The mRNA and protein expression of IRS family was measured using semi-quantitative RT-PCR and western blot analysis, respectively. Results MG-63 cells and HOB had the mRNA and protein expressions of IRS-1,-2,-3, and -4. Among IRS family, the expressions levels of IRS-1 mRNA and protein were the highest, and those of the IRS-4 mRNA and protein were the lowest in MG-63 cell line and HOB. Conclusion MG-63 and HOB can express the mRNA and protein of IRS family members, and the expressional levels of IRS family members were different.
2.Effects of Insulin on the Gene Expression of Insulin Receptor Substrate-2 in MG-63 Cells
Qiuxia HUANG ; Houde ZHOU ; Eryuan LIAO
Journal of Chinese Physician 2001;0(09):-
Objective To investigate the effects of insulin on the mRNA expression of insulin receptor substrate-2 (IRS-2) in MG-63 cells. Methods Semi-quantitative RT-PCR was used to study the action of insulin on the mRNA expression of IRS-2 in MG-63 cells. Results Insulin regulated the mRNA expression of IRS-2 in a dose- and time-dependent manners in MG-63 cells. Insulin up-regulated the expression of IRS-2 mRNA at 10~ -10~10~ -6mol/L(P
3.The effects of regional infusion of hypothermic captopril on the free radicals and MPO in rabbit spinal cord tissue of ischemia-reperfusion
Wei DU ; Jianguo HU ; Qiuxia HUANG
Journal of Chinese Physician 2000;0(12):-
Objective To investigate the effects of regional infusion of hypothermic normal saline contained captopril on free radicals level and myeloperoxidase(MPO) activity in rabbits during spinal cord ischemia-reperfusion(I/R).Methods The 80 rabbits were randomly divided into four equal groups,group A(sham operated,no I-R injury,n=8),group B(control,only I/R,n=24),group C(I/R + intraaortic hypothermic normal saline,n=24),and group D(I/R + N.S plus 4mg/kg captopril,n=24).The model of spinal cord ischemia in the rabbit was induced with the aorta clamped.Hypothermic solution was infused into the isolated aortic segments.The content of spinal cord MDA and the activities of superoxide dismutase(SOD),MPO were measured at 8h,24h and 72 h after the reperfusion respectively.Results The level of spinal cord MDA increased,the activity of SOD decreased and the activity of MPO increased markedly after the reperfusion.Compared with group B,the MDA content decreased significantly at the three observation time points and the MPO activity decreased significantly in groups C and D(all P
4.Protective effect of regional captopril infusion on ischemia-reperfusion injury of spinal cord
Wei DU ; Jianguo HU ; Qiuxia HUANG
Chinese Journal of Rehabilitation Theory and Practice 2003;9(12):722-724
Objective To investigate the effect of regional captopril infusion on ischemia-reperfusion (I-R) injury of spinal cord in rabbits. Methods 32 rabbits were divided randomly into four groups, the group A (sham operated, no I-R injury), the group B (control group, only with I-R injury), the group C (I-R injury + intra-aortic infusion of hypothermic normal saline), and the group D (I-R injury + infusion of normal saline plus 4mg/kg captopril). Spinal cord ischemia was induced by clamping the aorta both below the left renal artery and above the aortic bifurcation. Hemodynamic data were measured in every group. The spinal cord function was assessed 24, 48 and 96 hours after aortic declamping according to Tarlov's Scale. Spinal cords were harvested for histological analysis. Results There were no significant differences in blood pressure and heart rate among four groups. The neurological status in the groups C and D was significantly superior to that of the group B (P<0.01). In the group B, all animals were paraplegic with Tarlov's Scale of 0 or 1. Three of 8 animals in the group C were paraplegic with Tarlov's Scale of 0 or 1, and only one animal in the group D. Compared to the group B, there were more normal neurons in the anterior horn of spinal cords in the groups C and D (P<0.01). Conclusion Regional infusion of hypothermic normal saline contained captopril can provide sufficient spinal cord protection against ischemia.
5.Expression and clinical significance of long chain non-coding RNA LOC285194 in human breast cancer tissue
Qiuxia HUANG ; Gang CHEN ; Zhenbo FENG ; Kanglai WEI ; Hao CHEN
Chongqing Medicine 2017;46(9):1223-1225
Objective To investigate the expression of long chain non-coding(lnc) RNA LOC285194 in breast cancer tissue and paracancerous tissue and its clinical significance.Methods Forty-two samples of paraffin embedded breast cancer tissue and 16 samples of paraffin embedded paracancerous tissue were selected.The expression of lncRNA LOC285194 in these tissue were detected by using quantitative real-time polymerase chain reaction(PCR).Then its correlation with clinicopathological features was analyzed.Results The expression level of lncRNA LOC285194 in breast cancer tissue was significantly lower that in the paracancerous tissue (P<0.01);the level of lncRNA LOC285194 in human epidermal growth factor receptor-2(HER2)overexpression tissues was up-regulated compared with HER2 negative breast cancer tissue(P =0.013),there was a positive correlation between them(r=0.385,P=0.012).Conclusion lncRNA LOC285194 may play the role of cancer suppressor gene and may be involved in the generation of breast cancer by HER2 association,which may become a target gene of breast cancer treatment.
6.Outcomes and obstacles of “treatment before payment” reform as viewed by medical managers
Qianqian YU ; Wenqiang YIN ; Qiuxia WANG ; Dongmei HUANG
Chinese Journal of Hospital Administration 2014;30(4):269-273
Objective To analyze implementation outcomes and obstacles of “treatment before payment” reform seen by medical institutions' managers,along with an optimal strategy proposed.Methods Quantitative survey and qualitative interviews were called into play,and the data so acquired are subject to evaluation of the radar chart and fishbone diagram analysis to learn the implementation outcomes and obstacles.Results The reform proves workable at hospitals of county and lower levels,achieving win-win for the people,hospitals and government.Obstacles found include poor allocation of designated funds for risk coverage,insufficient circulating funds in advance,poor risk aversion mechanism,and poor preparation for tertiary hospitals.Conclusion It is recommended to promote awareness of the reform,enhance inter-department cooperation,improve hospital information systems,clarify the screening standards of “purposely evasion offenders”,standardize the issuance and use of the NRCMS certificates,and better build the credit system of the society.
7.Effect of Erythropoietin on Expression of Nuclear Factor-κB in Rabbit Spinal Cord Tissue after Ischemia-Reperfusion
Wei DU ; Lizhen LIANG ; Qiaoling ZHOU ; Qiuxia HUANG
Chinese Journal of Rehabilitation Theory and Practice 2009;15(5):434-435
Objective To explore the effects of erythropoietin (EPO) on the neural function recovery and the expressions of nuclear factor-κB (NF-κB) in rabbit spinal cord after ischemia-reperfusion injury. Methods 24 rabbits were randomized into 3 groups: EPO treatment group, ischemia-reperfusion (I/R) group and sham group with 8 rabbits in each group. The rabbit model of spinal cord ischemia-reperfusion injury was established with Tetik's method. The changes of neural functional recovery of rabbits of 3 groups were observed through Tarlov's scale at different time points post-operation. The expressions of NF-κB were tested with immunohistochemistry. Results The grade of nerve function improved distinctly in EPO treatment group (P<0.01).The expression of NF-κB in EPO group was lower than that of I/R group (P<0.01).Conclusion EPO can significantly improve the motor function of hind limbs in rabbits after spinal cord ischemia-reperfusion injury, which might be related with inhibition of the expressions of NF-κB.
8. Ultrasonography in evaluation on abnormal motion of diaphragms in patients with chronic obstructive pulmonary disease
Chinese Journal of Medical Imaging Technology 2019;35(10):1513-1516
Objective: To explore the value of ultrasonography in evaluation on abnormal motion of the diaphragms in patients with chronic obstructive pulmonary disease (COPD). Methods: Totally 64 patients with COPD in acute exacerbation were enrolled and divided into C group (n=34) and D group (n=30) according to 2017GOLD guidelines. All patients underwent ultrasonography. The thickness of diaphragm, the range of motion of diaphragm and the angle of conjunction, as well as diaphragmatic thickening fraction (DTF) and the degree of diaphragm (DD) were measured and calculated. Results: DTF and contraction speed of diaphragm in C group were significantly higher than those in D group (both P<0.05), while DD and chest wall were not significantly different between the two groups(both P>0.05). DTF was positively correlated with the ratio between forced the first second of expiratory volume and forced vital capacity (FEV1/FVC, r=0.26, P=0.04), while DD (r=0.35, P<0.01) and contraction speed (r=0.43, P<0.01)were positively correlated with forced vital capacity (FVC). The differential diagnosis performance of DTF for C group and D group COPD was relatively good (AUC=0.78), taken diagnostic threshold of 30.22%, the sensitivity and specificity was 70.60% and 83.30%, respectively. Conclusion: Ultrasound can be used to evaluate diaphragmatic dysfunction in patients with COPD and guide the stable rehabilitation treatment.
9.The relationship between association of microalbuminuria and retinal vessel diameter in population with essential hypertension
Qiuxia HUANG ; Pengli ZHU ; Feng HUANG ; Fan LIN ; Zhonghai GAO ; Falin CHEN ; Jiangang HUANG
Chinese Journal of Internal Medicine 2013;(4):309-312
Objective To investigate the association of urinary albumin-to-creatinine ratio (UACR) and the diameter of retinal vessel in population with essential hypertension in Fujian coastal area.Methods Central retinal artery and vein equivalents (CRAE and CRVE) were measured from the avoiding mydriatic digitized photographs and semi-automatic fundus analysis software,as well as albumin and urine creatinine.Results There were significant differences in CRAE levels among the normal control group,normoalbuminuria with essential hypertension group and microalbuminuria with essential hypertension group [(135.68 ± 10.10) μm,(129.79 ± 10.48) μm,(125.29 ± 11.17) μm,all P values <0.01].The CRAE levels were significantly negative correlated with UACR (r =-0.29,P < 0.01).Linear regression analysis showed CRAE was associated with UACR in the patients with hypertension(β =-5.0,P < 0.01).Logistic regression analysis showed,systolic blood pressure (β =1.08,P =0.02) was risk factor for CRAE abnormality.The CRAE abnormality was increased in turn in the normal control group,normoalbuminuria with the essential hypertension group and microalbuminuria with essential hypertension group (P < 0.01).Conclusion The reduction of central retinal artery diameter are associated with the hypertensive renal damage.UACR and CRAE could be used to evaluate the microvascular lesions and be used as an indicator to assess the target organs damage in essential hypertension patients.
10.In vivo distribution of luciferase gene-labeled bone marrow mesenchymal stem cells infused through different approaches
Xiaowei SUN ; Hao HUANG ; Yongjun ZHOU ; Xiaoli CHEN ; Pengxin QIAO ; Chun ZOU ; Qiuxia ZHANG ; Qianli JIANG
Chinese Journal of Tissue Engineering Research 2017;38(5):676-681
BACKGROUND:Most bone marrow mesenchymal stem cel s are infused intravenously and have very low efficiency of homing to the bone marrow. However, cel infusion via the femoral approach is little reported. OBJECTIVE:To explore the distribution of luciferase gene modified red fluorescent protein transgenic bone marrow mesenchymal stem cel s in vivo through different infusion routes. METHODS:Luciferase gene modified bone marrow mesenchymal stem cel s at different gradients (5×106, 1×106, 1×105, 1×104) were seeded or injected into the in vitro pore plate or free femurs to observe the fluorescence imaging and select the best concentration of cel s. Luciferase gene modified bone marrow mesenchymal stem cel s at the best cel concentration were injected into the mice via the femur and the tail vein, respectively. The distribution of fluorescence and cel number in the mice were explored by using bioluminescence, pathological examination, flow cytometry and quantitative PCR. RESULTS AND CONCLUSION:Ex vivo fluorescence intensity of luciferase gene modified bone marrow mesenchymal stem cel s was positively correlated with the cel concentration;fluorescent cel s in vivo appeared in the femur first and then quickly spread to the lungs in the femur group, while fluorescent cel s in the tail vein group spread to the lungs quickly after cel infusion. Fluorescent cel s could be seen in the spleen, liver and other organs 24 hours later in the two groups. The distribution and migration of cel s in mice could be observed successful y by bioluminescence;5 minutes after cel infusion, the lungs of mice in the two groups began to emit fluorescence that could spread to the liver, spleen and other tissues 24 hours later, and the fluorescence intensity reached its peak after 15 minutes. The distribution of bone marrow mesenchymal stem cel s in mice had no significant difference between the femur group and the tail vein group. To conclude, cel injection through the bone marrow cavity and tail vein fails to promote the homing of bone marrow mesenchymal stem cel s to the bone marrow.