1.Study of Mechanism of Preoperative Oral Carbohydrate Involved in Attenuating Postoperative Insulin Resistance
Zhiguo WANG ; Zhe YANG ; Huanlong QIN
Chinese Journal of Bases and Clinics in General Surgery 2008;0(11):-
Objective To assess the tolerance of preoperative carbohydrate-rich beverage,to determine its effect on postoperative insulin resistance and analyze its potential mechanism.Methods Thirty-two patients undergoing elective colorectal cancer resection were recruited to this randomized controlled study and assigned to two groups at random.Patient in control group was fasted before operation,while patient in study group was given oral water.Homeostasis model assessment(HOMA)indexes,activity of PTK,and mRNA and(or)protein expressions of PKB,PI3K and GluT4 were measured before and(or)immediately after surgery.Furthermore preoperative well-beings of patients were studied.Results Among well-beings,feeling of thirst,hunger and anxiety tended to be better in patients receiving carbohydrate-rich beverages compared with fasted ones(P0.05).Conclusion Preoperative consumption of carbohydrate-containing fluids is safe and effective.Provision of carbohydrate energy source prior to surgery may attenuate immediate postoperative insulin resistance.A carbohydrate-rich drink enhances insulin action at the time of onset of anaesthesia or surgery by activating three kinases named PTK,PI3K,PKB which are key enzymes in pathway of insulin signal transduction.It is likely to explain the effects on postoperative insulin resistance.
2.Effects of presenilin-1 V97L mutation on neprilysin expressing in SH-SYSY cell
Zhe CHENG ; Wei QIN ; Jianping JIA
Chinese Journal of Neurology 2011;44(3):155-158
Objective To study the mechanisms of increasing amyloid [β1-42 (Aβ42) level by presenilin-1 (PS-1) mutation of V97L.Methods Expression level of neprilysin (NEP) in nontransfected, or mock vector, wild type (wt) PS-1 and V97L-PS-1-transfected SH-SY5Y cells were assessed by reverse transcriptional-polymerase chain reaction (RT-PCR) and Western blot.The level of Aβ42 was also assessed by enzyme linked immunosorbent assay (ELISA).Results The mRNA level of NEP was decreased significantly in PS-1 V97L transfected cells (0.650 ± 0.010) compared to that in normal cells (1.090 ± 0.015), wt PS-1 gene (1.040 ± 0.021) and mock (1.080 ± 0.020) stably transfected cell lines (t = 9.236, 10.452, 5.678; all P < 0.01).Although there was a decreased tendency in the protein expression of NEP in PS-Ⅰ V97L transfected cells (1.000 ± 0.126)compared to that in normal cells (1.020 ± 0.110), wt PS-1 gene (1.040 ±0.110), mock (2.130 ±0.130) stably transfected cell lines, nosignificant differences were found.The expression of Aβ42 was increased significantly in PS-1 V97L transfected cells compared to other cell lines (t = 2.109, 3.355, 3.976; all P < 0.01).Conclusions PS-1 V97L mutation can decrease the transcription of NEP, however, in contrast, this mutation also resulted in increased Aβ42.The mechanism needs further analysis.
4.To explore the application of comfortable mode cell collection in COBE Spectra hematopoietic stem cell separator
Qin WANG ; Lingyun GU ; Zhe CHEN
China Medical Equipment 2015;(7):111-112,113
Objective:The main purpose of this research is an experiment on the application of a comfort nursing model to a stem cell collection of peripheral blood procedure.Methods: The comparison method has been applied in this research. 178 cases have been selected as a whole research group. Then 88 cases are the observed group who will adopt the comfortable nursing model and 90 cases are the control group who will adopt the normal model.Results: The result of the comparison method shows that the observed group has lower mental pressure during the stem cell collection progress. Furthermore, the satisfaction feedback of the observed group is 90.9% but the control group is 67.8%.Conclusion: This research found that the application of the comfortable nursing modeling in stem cell collection of peripheral blood will ensure the collection process is completed smoothly. More importantly, an improvement was made in medical treatment quality and patient satisfaction.
5.Effect of heat shock protein 70 expression in Curcumin’s inhibition on STS-induced neurons injury
Zhe GUO ; Taoyan LIU ; Ruiyuan PAN ; Xiaoyan QIN
Chinese Journal of Biochemical Pharmaceutics 2014;37(4):24-27
Objective To explore the effect of heat shock protein 70(HSP70)expression in the role of Curcumin inhibited staurosporine(STS)-mediated neurons toxic injury.Methods The primary cultured hippocampal neurons was cultured in vitro and the stress damage model of STS-induced nerve cell toxicity was established.The experiment were divided into six groups according to the added drugs:normal control group,the STS model group (final concentration was 20μmol/L),Quercetin+STS model group(final concentration were 10 μmol/L and 20 μmol/L,respectively),Curcumin+STS pretreatment group(for 20μmol/L final concentration),Curcumin+Quercetin+STS treatment group(final concentration were 20μmol/L,10μmol/L and 20μmol/L,respectively)and Curcumin treatment group(final concentration was 20μmol/L).The cell viability were determined by thiazole blue (MTT)method,cell toxicity were measured by lactate dehydrogenase(LDH)release rate and HPS70 expression were detected by Western Blot. Results MTT results showed that the cell viability of Curcumin+STS pretreatment group was significantly higher than STS model group(P<0.001).Compared with Quercetin+STS model group,the cell viability of Curcumin+Quercetin+STS treatment group had little change.LDH results show that the nerve cell toxicity of Curcumin+STS pretreatment group was obviously less than that of STS model group(P<0.001).Western Blot results show that compared with STS model group,HSP70 protein expression in Curcumin+STS pretreatment group was significantly increased(P<0.001).Conclusion Curcumin can inhibit STS-mediated neurons toxicity stress damage though increasing HSP70 expression,when added Quercetin to block HSP70 expression in nerve cells,the inhibiting effect of Curcumin on STS-mediated neuron toxic stress injury is counteract.
6.Research Progress on Animal Modeling Methods and Model Evaluation of Spleen-yang Deficiency
Qin LI ; Huiyong ZHANG ; Tianshi WU ; Zhe ZHANG ; Guanlin YANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;(8):1721-1728
The paper was aimed to review the modeling methods of spleen-yang deficiency, which can be classified into imitating traditional Chinese medicine (TCM) etiology methods and modern medicine methods. At present, methods of modeling were not generally accepted and the main presented problems were as follows. Modern medicine methods did not conformed to the rules of TCM etiology and pathogenesis. The evaluation of yang deficiency models was not accurate. Some modeling methods can lead to other diseases at the same time. The names of spleen deficiency model were not unified. It was difficult to distinguish the modeling methods of spleen-yang deficiency and spleen-qi deficiency, and etc. Model evaluation of spleen-yang deficiency was various. However, the domestic standard evaluation system had not been formed. The main model evaluation problems were as follows. Macro symptoms of the model lacked of objective and quantitative evaluation. It lacked of evaluation indexes of pulse and tongue with TCM characteristics. The disproof of prescription selection was not unified. Similar syndromes had not been ruled out. The microscopic indexes were fragmented, and etc. This paper reviewed on animal modeling methods of spleen-yang deficiency.
7.Correlation Analysis of Optimism,Resilience and Anxiety in Lung Cancer Patients
Zhe WANG ; Haijian YU ; Yuxiu SUN ; Baoli QIN
Journal of China Medical University 2017;46(3):238-240
Objective To explore the associations of anxiety with optimism ,resilience and related demographic factors in lung cancer patients , and to provide a scientific basis for reducing the level of anxiety and improving the psychosomatic health. Methods A total of 130 lung cancer pa-tients from the department internal medicine of respiratory tumors in Liaoning Cancer Hospital&Institute were investigated by convenience sam-pling method from February 2013 to January 2014. The survey was anonymous. Finally,107 questionnaires were effective,and the effective rate was 82.307%. Results Among lung cancer patients,optimism and resilience were positively and significantly associated with anxiety. Physical ex-ercise had an effect on the anxiety symptoms. Conclusion Optimism and resilience have significant predictive value on the anxiety among lung cancer patients. It is important to encourage lung cancer patients to improve their psychological health ,so as to reduce their anxiety symptoms effec-tively.
8.Practice of Teaching Reform in Sanitary Reconnaissance of Water Source
Hai-Hong QIN ; Hui SHEN ; Zhe ZHANG ; Min LI ;
Chinese Journal of Medical Education Research 2006;0(10):-
According to the requirement of simulated actual combat,based on the traditional contents of sanitary reconnaissance of water source,this paper introduced some practical knowledge and skills in drinking water under emergency,including water source search,utilization,drinking principles and some measures to reduce the loss of body water.These practices enriched and consum- mated the subject of sanitary reconnaissance of water source.
9.Esterase Isozyme Analysis of 14 Strains of Ganoderma
Jun-Zhe QIN ; Shen-Rui GU ; He CHEN ;
Microbiology 1992;0(04):-
Antagonism, esterase isozyme ployacrylamide gel electrophoretic (EST-PAGE) and cluster analysis was used in the study of 14 strains of Ganoderma. The results showed that there were 18 bands of EST with different Rf. Cluster analysis at 50% similarity level showed that all strains could be clustered into five groups, the first included Xian zhi, Da xian 823, Nan han, Yuan zhi 6, Tian zhi, Han zhi; the second included Chi zhi 10, Chi zhi 12, Chi zhi, Ri ben hong zhi; the third included Zi zhi, Hei zhi; the fourth included Xue zhi; the fifth included Bai zhi. And this result was similar to the result of antagonism and morphological characters. Because of its stablity, the technique of EST can be used for identification of Gamoderma.
10.Periorbital Soft Tissue Defects Reconstructed by Random Flaps
Jun KONG ; Zhe LI ; Xingjun QIN ; Jinsong ZHANG
Journal of China Medical University 2010;(2):144-145,149
Objective To summerize the experiences of using random flaps to reconstruct soft tissue defects of the periorbital region.Methods Periorbital soft tissue defects in 65 patients underwent reconstruction surgery by random flaps with pedicle 1.0~2.5 cm in width.The length of the flap ranged from 1.0 cm to 3.5 cm,with the rate of length to width less than 2.5:1.Detail plans on flap and incision design were made based on the aesthetic and functional problems.Results Phenomena of blister and purplish red in the edge or the distal area of the flaps were observed in 3 cases,and were disappeared after corresponding treatment.The other flaps survived and the wound healed primarily after operation.The color and the texture of the flaps matched well to the adjacent tissues with satisfied function and aesthetic Results .Conclusion Random flap is an ideal substitute to repair periorbital soft tissue defects.