1.Studies on the effects of different doses of X-irradiation on the response of Leydig cells to hCG
Chinese Journal of Pathophysiology 1986;0(03):-
The present paper reports the effects of low and high doses of X-irradiation on hCG-induced testosterone secretion in cultured rat Leydig cells. The Leydig cells harvested from testis in immature rats were exposed to 25, 50, 75, 100, 250 mGy and 0.5, 1.0, 2.0, 4.0, 8.0 Gy X-irradiation at a dose-rate of 12.5 mGy/min and 0.51 Gy/min respectively after a preincubation for 24h. The cells were stimulated with 0.025 or 0.05 i.u./ml of hCG for 48 h in culture after X-irradiation. In low dose irradiated Leydig cells, the response to 0.05 i.u./ml of hCG in both 25 and 50 mGy groups was significantly higher than that of the control. No significant changes were found in response to 0.025 i.u./ml hCG in all the low dose groups. In high dose irradiated Leydig cells, the response to either 0,025 or 0.05 i.u./ml hCG was significantly inhibited in a dose-dependent manner. It is concluded that low dose ionizing irradiation acts synergistically with hCG in stimulation of testosterone production, while higher doses inhibit its secretion. The possible mechanisms of these effects were discussed.
2.Effect of Pregnancy and Delivery on the Pelvic Floor Function
Journal of Practical Obstetrics and Gynecology 2010;26(4):304-306
Objective:To investigate the change of petvic floor function in the third trimester of pregnancy and early postpartum.Methods :46 pregnant women in the third trimester in our hosprtal from July to October 2007 were randomly selected.In late pregnancy, 6 ~8 weeks and 12 ~14 weeks after delivery, the incidenca of stress urinary incontinence (SUI) and bladder neck mobility in different stage of puerperium was carried out.They were respectively given score, protectrve pad experiment, ultrasonic testing residual urine and peri-neum ultrasound examination.An anarysis on their.Results :The incidence of SUI that diagnosis by POP-Q or POP-Q combined with pat test was 47.83% ,39.13% respectively in late pregnancy group;21.74% ,15.22% in 6 ~8 weeks after delivery;17.24%.13.7g% in 12 ~14 weeks after delivery.The difference between late pregnancy group and 6~8 waeks after delivery group was statistical significance (P<0.05).There was no significantly difference between 6 ~8 weeks and 12 ~14 weeks after delivery groups(P>0.05).There was significant difference between 6 ~ 8 weeks and 12~14 weeks after delivery group while compared the bladder neck angle[(88.11± 13.36)° vs(82.17 ±10.28)°]with the bladder neck rotation angle[(21.67 ±10.64) ° vs (16.79±8.57) °].Conclusions :Pregnancy and delivery can damage the function of pelvic floor, which has certain rehabilitation after delivery.
3.The relationship between pulmonary function or metabolic indexes in overweight or obesity adults
Clinical Medicine of China 2014;30(1):44-48
Objective To investigate the relationship of pulmonary function and metabolic indexes in overweight as well as obesity people.Methods Three hundred and five health examination adults were selected as our subjects.The basic parameters,metabolic indexes and pulmonary function were measured.Of which,pulmonary function indexes include forced vital capacity (FVC),forced expiratory volume in one(FEV1),peak expiratory flow(PEF),the ratio of the forced expiratory volume in the first one second to the forced vital capacity (FEV1/FVC),the ratio of the forced expiratory volume in the first one second to the vital capacity(FEV1/VC),maximal expiratory flow after 50% of the FVC (MEF50),maximal expiratory flow after 25% of the FVC (MEF25),and each index value of lung function was expressed the ratio of the measured value/the predictive value.Metabolic indexes include triglycerides (TG),total cholesterol (TC),low-density lipoprotein cholesterol (LDL-C),fasting plasma glucose (FPG)),C-reactive protein (CRP),high-sensitivity C-reactive (hs-CRP),superoxide dismutase(SOD),systoloc blood pressure (SBP) and diastolic blood pressure (DBP).Statistical analysis methods include one-way analysis of variance and Spearman correlation analysis.Results The levels of FVC,FEV1,FEV1/FVC in overweight and the obesity group were (85.74 ± 13.94)% and (82.85±13.34)%,(84.52 ± 14.62)% and (82.74 ± 14.18)%,(103.40 ± 13.05)% and (103.17 ±8.99)%respectively,lower than that of normal weight group [(95.79 ± 26.83) %,(92.65 ± 26.93) %,(99.98± 11.88) %,all P values less than 0.05)].Compared with the normal weight group,the levels of TG,SBP,FPG in overweight group and the obesity group were significantly increased.The levels of LDL-C,DBP,hs-CRP in obesity were (5.05 ± 0.83) rmtmol/L,(86.64 ± 10.49) mmHg,(3.74 ± 5.51) mg/L respectively,higher than that of normal group [(3.08 ±0.96) mmol/L,(77.69 ± 13.20) mmHg,(2.33 ±4.67) mg/L,P <0.05)].SOD activities in overweight and obesity group were (140.82 ± 13.16),(144.89 ± 13.82) U/L respectively,significantly lower than that of normal weight group[(148.64 ± 14.94) U/L,P <0.05)).The levels of SBP,DBP,hs-CRP in the over weight group were (127.77 ± 19.07) mmHg,(80.87 ± 12.21) mmHg,(2.31± 3.73) mg/L),higher than that of obesity group.Among metabolic indices,TG,SBP,DBP,FBG,CRP,hs-CRP and SOD were related with FVC (r =-0.129,-0.129,-0.136,-0.180,-0.220,-0.217 respectively,P < 0.05 or P < 0.01).There was negatively correlated relationship between SBP,FBG,CRP,hs-CRP and FEV1 (r =-0.128,-0.127,-0.148,-0.198 respectively,P <0.05 or P <0.01),So were SBP,CRP,hs-CRP and PEF (r =-0.137,-0.117,-0.133 respectively,P < 0.05).Negatively correlated relationship between hsCRP,SBP and MEF50 were seen (r =-0.126,-0.124,P < 0.05).Meanwhile there was negatively correlated relationship between SOD and FVC,FEV1/FEV,PEF,MEF50 (r =0.149,0.094,0.119,0.141,0.129respectively,P < 0.05 or P < 0.01).Conclusion Impaired pulmonary function and metabolic disorders were showed in the overweight and obesity people.Metabolic indexes were related with pulmonary function.
4.The expressions and clinical significance of STAT3, Bcl-2, and MMP2 in colorectal adenomas and adenocarcinomas
Journal of Chinese Physician 2013;15(11):1478-1481
Objective To investigate the expressions of signal transducer and activator of transcription factor 3 (STAT3),Bcl-2,and matrix metalloproteinase 2 (MMP2) in colorectal adenomas and adenocarcinomas,and the relationship of those factors with the colorectal clinicopathological features and prognosis of intestinal adenocarcinomas,and explore their roles in invasion,metastasis,and prognosis of a colorectal cancer.Methods The samples were selected from Dongyang City People's Hospital from January 2011 to January 2012,including 50 cases of paraffin-coded colorectal mucosas with chronic inflammation,50 cases of paraffincoded colorectal adenomas,and 100 cases of paraffin-coded colorectal adenocarcinomas (35 cases with metastasis and 65 cases without distant metastasis).Envison two method was used to detect the expressions of STAT3,Bcl-2,and MMP2 in each sample.Results The expressions of STAT3,Bcl-2,and MMP2 in colorectal adenomas and adenocarcinomas were significantly higher than those in colorectal mucosas with chronic inflammation (P < 0.05).The expressions of STAT3 and MMP2 in colorectal adenocarcinomas with distant metastasis were significantly higher than that those without distant metastasis (P < 0.05).The expression of BCL-2 had no significant difference between colorectal adenocarcinomas with and without distant metastasis (P > 0.05).Conclusions STAT3,Bcl-2 and MMP2 were associated with occurrence and development of colorectal carcinoma.STAT3 was associated with distant metastasis of colorectal carcinoma and might indicate a poor prognosis.STAT3 might be used as a candidate clinical sign for recurrence,metastasis,and poor survival prognosis of colorectal adenocarcinoma.
5.Advance of treatment for newly diagnosed multiple myeloma
Journal of Leukemia & Lymphoma 2008;17(5):391-394
Multiple myeloma is a plasma cell malignancy.At diagnosis,most patients are older than 65 years,In newly diagnosed myeloma patients younger than 65 years,high-dose of melphalan followed by autologous stem cell transplantation(ASCT)is regarded as the standard treatment.In elderly patients,usually older than 65 years,oral melphalan and prednisone(MP)has been considered as the standard regimen recently.However,the discovery of thalidomide,lenalidomide,and the proteasome inhibitor bortezomib will increase the effect of clinical treatment.This review will summarize literatures and focus on the treatment of newly diagnosed myeloma.
6.Molecular targeted therapy for breast cancer patients based on Notch signal transduction pathway
Yongqu ZHANG ; Xiaowei DOU ; Guojun ZHANG
Journal of International Oncology 2013;40(9):678-680
Studies show that the Notch signal transduction pathway involves in the regulation and control of cell proliferation,differentiation and apoptosis.Aberrant Notch signaling transduction pathway can induce breast cancer in transgenic mice.High expressions of either Notch receptors or their ligands have been linked to poor prognosis in patients with breast cancer.Inhibition of Notch signal transduction pathway may be beneficial for breast cancer treatment.
7.Effect of Fuxin Tablet on Thrombus Formation in the Arteries in Rats and Aggregation of the Blood Platelet in Rabbits
Xiaowei HUANG ; Yonghe ZHANG ; Ming ZHOU
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(03):-
Objective To investigate the effect of Fuxin tablet on thrombus formation in the arteries in rats and aggregation of platelet in rabbits. Methods To observe the effect of OT in the arteries through electric stimulation of common carotid artery. To observe the aggregation of platelet by using the PRP of the rabbit and ADP as the accelerant. PAG-1, PAG-3, PAG-5 and PAG-M were examined in the normal saline group and high-dose, middle-dose, low-dose groups of Fuxin tablet. Results High-dose and middle-dose groups of Fuxin tablet could prolong OT and decrease the aggregation of platelet. Conclusion Fuxin tablet could significantly inhibit the formation of thrombus in the arteries and maximal aggregation rate of platelet.
8.Protective Effect of Alcholic Extractive of Cornu Cervi against Myocardial Damage of Acute Myocardial Infarction Model Rats and Influence on plasma ET
Yonghe ZHANG ; Xiaowei HUANG ; Jinghui SUN
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(01):-
Objective To observe the protective effect of alcholic extractive of Cornu Cervi against the myocardial damage of acute myocardial infarction model rats. Methods The myocardial ischemia rats model was made by ligaturing their coronary attery, and the indexes including electrocardiogram, the area of acute myocardial infarction and ET of acute myocardial infarction model rats were observed after the acute period of myocardial damage. Results The alcoholic extractive of Cornu Cervi could obviously improve the degree of myocardial ischemia, reduce the area of myocardial ischemia, and lessen the level of ET. Conclusion The alcoholic extractive of Cornu Cervi could protect the myocardial against the damage of acute myocardial infarction model rats in some degree. The mechanism may be related to the reduction of value of ET of myocardial damage.
9.Medical monitor purchase decision based on quantitative performance evaluation
Lulu ZHANG ; Qiao TIAO ; Xiaowei SUN
Chinese Medical Equipment Journal 2017;38(2):135-137,141
Objective To realize scientific allocation of medical monitors in clinical departments by evaluating quantitatively their social and economic benefits.Methods Analyses were executed on social and economic benefit indexes,including number or times of patients involved,utility time,volatility of utilization rate (VOUR),payback period and investment yield.Results Totally 457 monitors were involved in the study from January to June 2015,and the monitors had the number or times of patients being 20,utility time being 383 h,VOUR lower than 10% (except that of February),mean payback period being 0.64 a and yearly mean investment yield being 137%.Conclusion The monitor has to be allocated by the equipment division in case of low social benefit.In case of high social benefit while low economic benefit,the monitor manufactured in China gains advantages due to short payback period,high investment yield and long free warranty time.The foreign monitor with specific function has to be selected in case of high social and economic benefits as well as requirements on special function.
10.Research on the Relationship between CRP, IMT and TCM Syndrome Types of MS
Li LIU ; Xiaowei DENG ; Xuesong ZHANG
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(03):-
liver fire exuberant syndrome. Conclusion Hs-CRP and IMT can be used as important indexes of TCM syndrome differentiation of MS.