1.Effects of Food Protein Quality on Protein Metabolism of Skeletal Muscle in Young Rats
Journal of Third Military Medical University 1984;0(01):-
The experimental rats were fed with 5 test diets of different protein quality.RNA content and 3-methylhistidhie(3-MH) in urine were determined.The results showed that the RNA content of the skeletl muscle cells was significantly different in rais fed with different diet.A linear correlation between RNA content and amino acid score of food protein was perceived.Food with the higher protein quality,the more 3-MH in urine was excreted.A good correlation between excrstiou of 3-MH and Net Portein Utilization(NPU),an index reflecting protein quality,existed too.These suggested that protein quality regulates the balance between auabolism and catabolism,meaning the turnover of skeletal muscle proteinThe mechanism of strengthening anabolism,not reducing catabolism,can explain that high protein quality could improve growth of animals.
2.Experimental study on the mechanism of inducing apoptosis in human SPC-A1 cells by curcumin
Chinese Pharmacological Bulletin 2003;0(08):-
AIM To investigate the mechanism of anti-tumor effects of curcumin on human SPC-A1 cells. METHODS Cell culture、fluorescence microscope、TUNEL method and irradiation immunity techniques were used. RESULTS ①By the action of curcumin, SPC-A1 cells grew against the wall and then peeled off gradually;fluorescence microscope showed the nucleus broke into pieces, and cell split into apoptosis bodies in different sizes; The TUNEL method further certified that apoptotic cells reached 42 67% at the concentration of 20 ?mol?L -1 curcumin at 24 h. ②The level of intracellular cAMP concentration in the SPC-A1 cells,treated with curcumin, was significantly higher than that of the control group. ③Treated with 20 ?mol?L -1 curcumin for 24 h, the expression of Caspase-8 mRNA of human SPC-A1 cells was up-regulated. CONCLUSION Curcumin can induce the apoptosis of SPC-A1 cells, and one of its molecular mechanism may be associated with the rising of the level of intracellular cAMP concentration, and up-regulating expression of Caspase-8.
3.Changes of serum procalcitonin level in patients with severe trauma and its relationship with multiple organ failure
Chinese Journal of Primary Medicine and Pharmacy 2020;27(4):448-451
Objective To investigate the changes of serum procalcitonin (PCT) level in patients with severe trauma,and to analyze its relationship with multiple organ failure (MODS).Methods From October 2013 to October 2018,the serum PCT levels were measured in 40 patients with severe trauma complicated with MODS (MODS group:40 cases) and 62 patients without MODS (non-MODS group:62 cases) in Yuncheng Central Hospital.The relationship between PCT and severity of trauma score (ISS),sequential organ failure (SOFA),acute physiology and chronic health status score (APACHE Ⅱ) and prognosis was analyzed.The predictive value of PCT in the prognosis of patients with MODS and severe trauma combined with MODS was analyzed by ROC.Results The serum PCT levels of the MODS group were (8.25 ± 2.35) μg/L,(7.26 ± 2.49) μg/L,(3.62 ± 1.75) μg/L on the 1 st,3rd and 7th day after admission,respectively,which were higher than those of the control group (t =7.561,9.561,8.251,all P <0.05).The serum PCT level in the MODS group increased with the increase of APACHE Ⅱ score and ISS score(F =12.108,9.173,all P < 0.05).The serum PCT level in the death group was higher than that in the survival group[(11.82 ± 3.75) μg/L vs.(4.92 ± 1.26) μg/L],and the difference was statistically significant (t =7.959,P <0.05).The area under MODS curve predicted by PCT for severe trauma patients was 0.848,with sensitivity and specificity of 80.00% (32/40),82.50% (33/40),respectively.The area under MODS curve predicted by PCT was 0.747,with sensitivity and specificity of 77.50% (31/40),72.50% (29/40),respectively.Conclusion The serum PCT level in patients with severe trauma complicated with MODS is significantly higher than that in patients without MODS,and its level is closely related to trauma,disease progression and prognosis.It is of great value to predict the occurrence and prognosis of MODS.
4.Analysis of Application of Antihypertensive Drugs in Wuhan Xiehe Hospital
Pu HUANG ; Dongsheng CHEN ; Jing LIU
Herald of Medicine 2001;(3):188-189
Objective:To review the application of antihypertensive drugs in Wuhan Xiehe Hospital in the period of 1996 to 1998.Methods:Statistically analyze the application of antihypertensive drugs during the period in terms of their types,sales income,DDDs*d-1 as well as the changes of daily expense on drugs.Results:During the period analyzed,the newly applied drugs are mainly ACEI drugs.The DDDs*d-1 of metoprotol,benazepril,nifedipine and nimodipine had been among the highest.The increase of DDDs*d-1 was rapid.The newly prescribed drugs were mainly oral and retard preparations.Conclusion:The Prescription of antihypertensive drugs in Wuhan Xiehe Hospital was rational and in accordance to the principles of convenience and cost-effectiveness.
5.Examination and analysis of spectrum ECG and ECG 、vectorcardiogram in patients with coronary heart discase
Dongsheng ZENG ; Xiuying CHEN ; Meikui WANG
Chinese Journal of cardiovascular Rehabilitation Medicine 2001;10(1):11-12
Objective: To explore the significance of examination of spectrum ECG in patients with coronary heart disease (CHD). Methods: Spectrum ECG and ECG、 vectorcardiogram examination were meanwhile executed in 254 patients with coronary heart disease. Results: Diagnose coincidence rate of CHD was 66.9% by spectrum ECG and ECG、 vectorcardiogram examination. Conclusion: Spectrum ECG is a new detect method for electrocardiogram information.
6.Construction and identification of the recombinant eukaryotic expression plasmid pHsp70-hsv-tk
Qiusha TANG ; Daozhen CHEN ; Dongsheng ZHANG
Journal of Medical Postgraduates 2003;0(11):-
Objective: To construct the recombinant eukaryotic expression plasmid pHsp70-hsv-tk(pHT)for further target gene therapy research.Methods: The oligomers of primers were synthesized based on the reported sequences of hsv-tk and with the pHSV-106 plasmid as the template.Then the hsv-tk gene fragment was amplified and inserted into the pD3SX vector.E.coli DH5? was transformed with the recombinant plasmids and the bacterial colonies containing the recombinant plasmids were identified by the PCR cloning method,and the recombinant plasmids were extracted and purified.Results: The recombinant eukaryotic expression plasmid pHT was obtained.The target gene obtained by PCR amplification had the same molecular size as predicted.The recombined pD3SX plasmid contained correct recombinant hsv-tk sequences.Conclusion: The plasmid pHT was successfully constructed,which can be used for further target gene therapy research.
7.A case of epiglottic pleomorphic adenoma.
Yongcai WENG ; Dongsheng GU ; Yuwu CHEN
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2013;27(24):1399-1399
The pleomorphic adenoma of epiglottis is rare. When the tumor grows larger, some patients may have symptoms of pharyngeal foreign body sensation, but other patients have no obvious symptom. The tumor is mainly found through indirect laryngoscopy or electronic laryngoscopy. This disease can be confirmed by pathological diagnosis after tumor resection.
Adenoma, Pleomorphic
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Adult
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Epiglottis
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Humans
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Laryngeal Neoplasms
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Male
8.Naloxone or vagotomy does not influence centrally octreotide-induced inhibition of gastric acid secretion in rats.
Feng, GAO ; Xiufen, HU ; Dongsheng, CHEN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2006;26(4):432-5
To investigate the effect of preceding naloxone injection into the third cerebroventricle or acute subdiaphragmatic vagotomy on the gastric acid secretion inhibited by the somatostatin analogue octreotide given by intracerebroventricular (icv) injection. The third ventricles were cannulated in male Wistar rats anesthetized with sodium pentobarbital. One week later, acute gastric lumen perfusion was carried out. The gastric perfusion samples were collected every 10 min and were titrated by 0.01 mol/L NaOH to neuter. On the basis of subcutaneous injection of pentagastrin (G-5, 160 micro, g/kg), icv injection of physiological saline (group A, n = 20), icv injection of octreotide (0.05 micro g) (group B, n = 20), icv injection of naloxone (2.5 micro g)+octreotide (0.05 micro g) (group C, n = 20), acute subdiaphragmatic vagotomy+ icv injection of physiological saline (group D, n = 20), or acute subdiaphragmatic vagotomy+icv injection of octreotide (0.05 micro g) (group E, n = 20) were conducted. Before and after icv injection, 1-h total acid output (TAO) was determined and compared. The experimental data were expressed in change rate (%) of TAO. The change rates (%) of TAO were 4.60% in group A, -20.35% in group B, -18.06% in group C, 5.01% in group D and -21.59% in group E, respectively. Comparison of group B or C versus group A showed that P < 0.01 and comparison between the group E versus group D showed that P < 0.01. Whereas the differences between group C and group B, group E and group B were not statistically significant (P > 0.05 for all). The results indicate that the central inhibition of gastric acid secretion by octreotide may not be mediated by the endogenous opiate substance or its receptor and the peripheral pathway for icv injection of octreotide to suppress gastric acid secretion is via extra-vagus route.
9.The Effect of Yinchenwulin Powder on the c-myc mRNA Expression of VSMC in Atherosclerosis Rats
Dongsheng WANG ; Fangping CHEN ; Zhaokai YUAN
Journal of Chinese Physician 2001;0(05):-
Objective To observe the effect of Yinchenwulin(YCWL) powder on the c-myc rnRNA expression in vascular smooth muscle cell (VSMC) of atherosclerosis(AS) rats. Methods 70 Wistar rats were randomly divided into four groups: normal, model, Gypenosides treatment and YCWL powder treatment groups. AS models of rats were set up by feeding with high fat diet for one month. One month after treatment the level of serum lipid and blood rheology were measured, the phathological change of aorta was observed by HE staining, the ultrastructure change of aorta was observed by transmission electronic microscope, and c-myc mRNA expression in VSMC was detected by RT-PCR. Results Compared with Gypenosides treatment, YCWL powder could obviously decreased the levels of serum TC,TG and LDL, increase serum HDL level, reduce plasma viscosity,whole blood mid-cut,hematocrit and platelet adhesion rate, maintain aorta tissue structure, and down-regulate c-myc mRNA expression. Conclusion YCWL powder has therapeutic effect for atherosclerosis by regulating c-myc mRNA expression.