1.Effect of Cinobufotalin Freeze-dry Powder on Heart Rate and Electrocardiograph of Anesthesia Rats
Guosheng FENG ; Pan LUO ; Jiangwei CHEN ; Li ZHU ; Lu GAN
Herald of Medicine 2015;(4):448-451
Objective To observe the effect of cinobufotalin freeze-dry powder on heart rate ( HR ) and electrocardiogram ( ECG) of SD rats and to provide experimental basis for monitoring its adverse effect on heart in clinical application. Methods The drug was administered into external jugular vein at constant speed throughout the whole experiment;standard-Ⅱ limb lead monitored the HR and ECG, and then the changes in HR and ECG before and after administration of cinobufotalin were compared. Results Thirty minutes after administration of cinobufotalin injection and cinobufotalin freeze-dry powder at middle dose and high dose, HR of the rats was significantly increased as compared with blank control group[(469±40) bpm, (466±29) bpm and (484±40) bpm vs. (411±17) bpm] (P<0. 05), but soon afterwards, it returned to normal. A small number of rats also developed arrhythmia. In addition, administration of cinobufotalin significantly shortened the P-R interval[blank control group: (46. 90±3. 90) ms, cinobufotalin injection administration group: (39. 70± 2. 54) ms;middle dose of cnobufotalin freeze-dry powder administration group: (37. 70±3. 77) ms; high dose of cinobufotalin freeze-dry powder administration group:(39. 30±7. 12) ms] and Q-T interval[blank control group:(61. 29±9. 46) ms;middle dose of cinobufotalin freeze-dry powder administration group: (55. 13±4. 67) ms; high dose of cinobufotalin freeze-dry powder administration group:(51.75±11. 53) ms] (P<0. 05), but QRS and S-T were unchanged (P>0. 05). Conclusion Cinobufotalin freeze-dry powder has some side effects on rat heart and can increase HR, even lead to arrhythmia.
2.High-dose intravenous immunoglobulin in the treatment of some severe skin diseases: a clinical analysis
Guoxing ZHU ; Chun LU ; Wei LAI ; Peiying FENG ; Youshou GU
Chinese Journal of Dermatology 1995;0(01):-
Objective To analyze the therapeutic outcomes and adverse effects of high-dose intravenous immunoglobulin (hd-IVIg) in the treatment of some severe skin diseases (toxic epidermal necrolysis, drug hypersensitivity syndrome, connective tissue disease, autoimmune bullous disease, acute graft-versus-host disease). Methods Twenty-five cases of severe skin diseases were treated with hd-IVIg (0.4 g/kg/day for a course of 5 days). Results The therapeutic outcomes were different from each other. Of all the cases, 21 improved, especially those of acute onset of toxic epidermal necrolysis and drug hypersensitivity syndrome; 1 adult dermatomyositis and 2 elder bullous pemphigoid were not relieved. A patient with acute graft-versus-host disease died. Three patients presented with minor adverse effects (headache and blood pressure rising). Conclusions hd-IVIg is effective and safe in the treatment of some severe skin diseases. More importantly, it has a substantial effect on shortening disease course and decreasing the dosage of glucocorticoids and immunosuppressants as well as on preventing infections.
3.Estimation of the effective doses for interventional employees in three common interventional diagnosis and treatment procedures
Lin ZHANG ; Jianguo ZHU ; Nan MIN ; Feng LU ; Yue CHEN
Chinese Journal of Radiological Medicine and Protection 2011;31(4):391-394
Objective To study and estimate the effective dose of interventional employees in the common cerebralvascular, cardiovascular and liver interventional diagnosis and treatment.Methods The absorbed doses of tissue or organ of anthropomorphic phantom in these three procedures were estimated by the anthropomorphic phantom experiment.The effective doses were calculated by the tissue weight factor which was given by International Commission on Radiological Protection publication 103.Results The effective doses to high, medium and low group were 24.0, 9.7,6.8 μSv for cerebralvascular interventional diagnosis and treatment, and 36.3, 29.3, 17.8 μSv for cardiovascular interventional diagnosis and treatment, and 23.9, 11.3, 5.5 μ Sv for liver interventional diagnosis and treatment, respectively.Conclusions The effective doses of high, medium and low group of interventional employees in cardiovascular interventional procedure are higher than those of cerebralvascular and liver interventional procedures.
4.Comparison of different genesis of olfactory ensheathing cell transplantation for intracerebral hemorrhage
Weijiang WU ; Hua LU ; Feng GE ; Jie XU ; Aihua ZHU
Chinese Journal of Tissue Engineering Research 2007;0(06):-
0.05). CONCLUSION: There are no significant differences in cell characteristics and transplantation outcome using OB-OEC and OM-OEC transplantation for repairing neurological function.
5.Cysteine and arginine in plasma albumin are the major targets attacked by free radicals
Yanwen LU ; Qiuyu ZHU ; Feng DING ; Yong GU ; Shanyan LIN
Chinese Journal of Nephrology 1997;0(01):-
Objective To study the effects of oxidants on the structure of albumin. Methods Using both AOPPs and protein carbonyl content as indices. The oxidative stress level in normal controls and uremia patients was evaluated. Albumin in plasma was purified by HPLC and then was subjected to amino acids composition assay. Results Both AOPPs level and protein carbonyl content in uremic patients were significantly higher than those in controls (P
6.The oxidative modification of albumin by hydrochlorous acid and the relationship between the oxidized HSA and AOPPs
Yanwen LU ; Qiuyu ZHU ; Feng DING ; Yong GU ; Shanyan LIN
Chinese Journal of Nephrology 2005;0(08):-
Objective To study the effect of oxidative modification of hydrochlorous acid (HOCl) on human serum albumin (HSA) and the relationship between the AOPPs and HOCl-treated HSA. Methods Purified HSA (60 mg/ml) was treated with HOCl (0, 1, 5, 10, 20, 30, 40, 50 and 60 mmol/L). Size-exclusion chromatography was applied to estimate molecular weights of oxidized products of HSA by HOCl and spectrum scan from 190 nm -400 nm was performed to observe the spectrum characteristics of all variants of HSA. Results Major products of HSA after exposure to HOC1 were dimer and hexmer of HSA. The first-order process could be employed to describe the oxidative dynamics of monomer and dimer of HSA oxidized by HOCl. To AOPPs formation mediated by oxidant was identified as pseudo first-order reaction. However, formation hexmer was much in accordance with second-order reaction. Hexmer was also a major contributor to AOPPs in all types of modified HSA. Spectral analysis showed that red shift of absorbance maximum of polymers of HSA occurred, suggesting that a possibility that polymers of HSA were cross linked by tyrosine residues in protein. Conclusions Protein aggregation is primary consequence of HSA after its exposure to HOCl. Hexmer of HSA is the major contributor to AOPPs.
7.Diagnosis and Surgical Treatment of Chronic Lymphocytic Thyroiditis
Bei LU ; Yang CAI ; Guanghua FENG ; Wei ZHU
Journal of Medical Research 2006;0(07):-
Objective To discuss the diagnosis and surgical management of Hashimoto's disease.Methods Clinical and pathological datas of 36 cases with Hashimoto's disease from 1995 to 2006 were studied retrospectively.Results 36 cases were all confirmed to be chronic lymphocytic thyroiditis by pathological examination,6 cases,5 cases and 3 cases were apartly accompanied by nodular goiter,thyroid adenoma and thyroid cancer among them;The clinical manifestations before operation included thyroid nodules in 29 cases,thyroid seriously enlarged in 5 cases,thyroid pain in 2 cases;Great partial/subtotal thyroidectomy in one or both part were taken in 23 benign cases,or together with isthmus excision,3 malignant case received total and subtoal thyroidectomy in either part with isthmus and homolateral neck dissection.Conclusions Surgery is actively to be advised when carcinoma under suspicion,thyroid enlarged with pressure symptoms or pain,medication is ineffective.The mode of operation should be selected according to intraoperative frozen section.A long-term substitute medication of thyroxin can help to obtain a good prognosis after operation.
8.The effect of preoperative chemotherapy in stage Ⅰ_(b2) cervical cancer
Jianlong ZHU ; Lingda FENG ; Lei WENG ; Huijuan LU
China Oncology 2006;0(07):-
Background and purpose:The greastest diameter of cervical cancer with stage Ⅰ_(b2) disease was more than 4 cm in diameter. surgery as the fi rst priority was diffi cult in these patients, bleeding was the most frequent adverse effect. This article studied the effect of the cervical cancer with stage Ⅰ_(b2) disease underwent neoadjuvant chemotherapy with gemcitabin plus cisplatinum(DDP). Methods:23 cases (A groups) stage Ⅰ_(b2) cervical cancer were treated with gemcitabin 1.5 g/m2 iv infusion at d1, plus cisplatinum(DDP) 20 mg/m2 iv infusion at d1-3. The interval between the two cycles was two weeks.19 cases (B groups) were treated with cisplatinum(DDP) 20 mg/m2 iv infusion at d1-3,plus VCR 1.5 g/m2 iv infusion at d1, and BLM 10 mg/m2 im at d1-3, The interval between the two cycles was three weeks. The assessment for clinical effect and side effect were conducted for the patients with completion of at least two cycles of chemotherapy. Results:42 cases were enrolled in this trial. There was signifi cant(P=0.004) difference between the two groups with the shrinkage of the greatest diameter after neoadjuvant chemotherapy. The main toxicities were myelosuppression. There was signifi cant (P
9.Study on early fluid resuscitation of patients with traumatic shock
Yi-Yong ZHU ; Feng LU ; Dong-Sheng XU ;
Chinese Journal of Emergency Medicine 2006;0(05):-
Objective To investigate the early fluid resuscitation of patients with traumatic shock.Method Two hundred and ninty-eight patients with traumatic shock were retrospectively analyzed.Survivors within 24 hours after admission were regarded as survival group and dead patients as dead group.The comparison was made in regard to injury severity score(ISS)and volume of fluid infusion and blood-transfusion between two groups within 24 hours after admission.At the same time,the comparison in respct of mortality between operation group and non-operation group was also made.Results Of the 298 patients,230(77.2%)survived and 68 (22.8%)died within 24 hours after admission.The ISS and the volume of fluid infusion and blood-transfusion in the dead group were significantly higher than those in the surviving group(P
10.Identification of genus Zanthoxlum by Fourier transform infrared spectrometry
Peiying LIN ; Chaoyang TAO ; Bin ZHU ; Feng LU ;
Academic Journal of Second Military Medical University 2001;0(09):-
Attenuation reflectance Fourier transformation infrared spectrometry(ATR FTIRs) combined with clustering analysis was used to identify genus Zanthoxlum .The dendrogram of clustering analysis showed that there were obvious difference between genus different species of Zanthoxlum . The results are consistent with that of morphologic study and analyzing.This method is rapid, simple, effective and can be used for the identification of crude drugs.