1.Retrospective analysis of snail status of Baofeng harbor,Yingcheng City for 35 years
Jianguo DAI ; Cheng XIAO ; Zhixin CHEN
Chinese Journal of Schistosomiasis Control 2010;22(2):149,157-
The retrospective analysis of data of snail status in Baofeng harbor,Yingcheng City from 1975 to 2009 suggests that the snail surveillance in schistosomiasis transmission-interrupted areas is a long term work,which should be strengthened continuously.
2.Therapeutic Observation on Female Rats in Immune Sterility Treated by Zhuyun Decoction
Yiqing XU ; Chao LI ; Jianguo DAI
Journal of Zhejiang Chinese Medical University 2007;0(01):-
[Objective] To observe the effect of Zhuyun Decoction on immune sterility rats.[Method] Set up groups of normal saline,model,Zhuyun Decoction and prednisone,make models of every group by injecting subcutaneously suspension of sperm and Fu's adjuvant,etc.into female SD rats along the groin,NS into normal saline group.After 4 weeks,the groups of normal saline and model take NS,Zhuyun Decoction for Zhuyun Decoction group,prednisone for prednisone group.After 2 weeks,they are closed together with male ones.Before the first immune and 1 week after strengthened immune,take blood and measure AsAb with ELISA method,measure the immune integral of IgG and IgA in uterus tunica intima with SABC method;meanwhile,compare the pregnant rats and average nidation points in all groups.[Result] In the Zhuyun Decoction group,the pregnant rats and nidation points are much more that other groups;Zhuyun Decoction can reduce IgG and IgA integral in uterus tunica intima.[Conslusion] Zhuyun Decoction has definite effect on immune sterility rats,whose mechanism may be related with regulation of IgG and IgA integral in uterus tunica intima.
3.Clinical Therapeutic Observation on Bell Paralysis Treated by Combined Therapy of Chinese and Western Medicine
Deshui HAN ; Kai GENG ; Jianguo DAI
Journal of Zhejiang Chinese Medical University 2006;0(06):-
[Objective]To explore the effect of combined therapy of Chinese and western medicine on Bell paralysis.[Methods] Randomly divide 62 cases of Bell paralysis into 2 groups who were treated respectively with combined therapy of Chinese and western medicine and western medicine.[Results] For effective rate,the treatment group(91.1%) was markedly higher than control group(67.8%),there was obvious difference between the 2 groups.[Conclusions] Combined therapy of Chinese and western medicine has marked therapeutic effect on Bell paralysis.
4.THE EFFECT OF VITAMIN E ON THE MITOCHONDRIAL FUNCTION OF COLD EXPOSED RATS
Chao ZHOU ; Yunyu HUANG ; Changrong YI ; Jianguo DAI
Acta Nutrimenta Sinica 1956;0(03):-
To evaluate the effect of Vitamin E on mitoc bond rial function of cold exposed rats male weaning rats were divided randomly into three groups. The group A was supplemented with 30 mg ?-tocopherol and 15?g sodium selenite per 100gm basal diet. The group B and C were fed basal diet on- ly. The group A and B were kept at the cold room (-2?1℃) and the group C kept at room temperature. Liver mitochondria were isolated for measurement of its respiratory function. Succinate was utilized as substrates of oxidative phosphorylation. Respiration rates of state 3 oxygen uptake and therefore ATP synthesis were found to increase with Vitamin E supplemented diet. Significantly less decline of ADP/O ratios and RCR was observed for group A than that of group B. These results suggest that Vitamin E has the effect of maintaining the physiological intactness of mitochondria of the cold exposed rats, and therefore may enhance the metabolic conservation of energy with the consequence of increasing the ability of cold tolerance of the cold exposed animals.
5.Effects of Picrotoxin Injection into Lateral Ventricle of the Cat on Cardiac Contractility and Renal Nerve Discharge .
Jun DAI ; Jianguo CHEN ; Gangxing HOU ; Weijun YUAN ; Weijun FU
Academic Journal of Second Military Medical University 1982;0(01):-
The present study was undertaken to observe the effect of picrotoxin(PT) injection into lateral ventricle (LV) on cardiac contractility (CC) and renal nerve discharge (RND).lt was found that PT injection into LV caused CC and RND to increase significantly, and this effect was dose-dependent.The effect of baroreflex on cardiovascular response produced by PT injection was also observed. Data suggested that PT injection into LV still caused CC and RND to increase when the buffer nerve was sectioned. The magnitude of increase was significantly larger than that of the intact buffer nerve. The results indicate that in the CNS, the block of gamma-aminobutyric acid (GABA) transmitter system not only could cause blood pressure and heart rate to increase, but also strengthen CC and RND; baroreflex could partly suppress cardiovascular response caused by PT injection.
6.Experimental Study Inhibition Proliferation and Mechanism of Rosiglitazone on HL-60 Cell
Wenxiang DAI ; Li WANG ; Yanhua CHEN ; Jianguo CAO
Journal of Medical Research 2006;0(06):-
Objective To investigate the mechanism of rosiglitazone on human leukemia cell line HL-60 in vitro.Methods Inhibition of HL-60 cell proliferation was shown by MTT array;cell cycle and apoptosis of human leukemia cell line HL-60 was detected by flowcytometry(FCM);expression of PPAR?,p21WAF1,Bax and bcl-2 was examined by SP immnocytochemical and western blotting.Results Rosiglitazone significantly inhibited proliferation of HL-60 cell and the inhibition effects had a dose-and time-dependence.The inhibition fraction of HL-60 cell to 100?mol/L rosiglitazone for 48h was 77%.Flow cytometry analysis revealed that proliferation of HL-60 cell treated with 10~100?mol/L rosiglitazone significantly inhibited.50~100?mol/L Rosiglitazone cold induce apoptosis of HL-60 cell.SP immnocytochemical found the nuclear translocation on PPAR?,and western blotting revealed that the Bax expression was increased,while the bcl-2 and NF-?B expression was decreased.The expression of PPAR?,Bax,bcl-2 and NF-?B had no change by GW9662,a specific inhibitor of PPAR?.Conclusion Rosiglitazone could induce apoptosis in HL-60 cells which may be involved in the activation of PPAR? and down-regulation of Bax and up-regulation of Bcl-2 and NF-?B protein.
7.Anti-apopttoic effect of resveratrol on free fatty acid-i nduced human hepatic L02 cells and its mechanisms
Qi YAO ; Meiling LI ; Mengyuan CHEN ; Jianguo DAI
Journal of Medical Postgraduates 2015;(8):804-808
Objective Resveratrol can improve nonalcoholic fatty liver disease , but its action mechanisms remain unclear . This study aimed to investigate the protective effect of resveratrol against the free fatty acid ( FFA)-induced apoptosis of human hepatic L02 cells and its possible mechanisms . Methods Human hepatic L02 cells were incubated with FFA and resveratrol for 24 hours.The prepared cells were divided into a blank control , an FFA ( 2 mmol/L) , and a resveratrol group ( 50 μmol/L resveratrol +2 mmol L/FFA).After treatment, we measured the triglyceride (TG), glutathi-one (GSH), and malonaldchyde (MDA) contents and caspase3 ac-tivity in the hepatocytes , determined the apoptosis of the cells by flow cytometry , and detected the protein expression of silent information regulator 1 (SIRT1) by Western blot as well as the mRNA expressions of catalase (CAT), Mn superoxide dismucase (MnSOD), Bcl-2, and Bax by qRT-PCR. Results The TG content and caspase 3 activity in the hepatocytes were significantly increased in the FFA ([3518.±64.2] μmol/L and [5.97 ±0.78] U/g) and the resveratrol group ([201.1 ±60.1] μmol/L and [3.60 ±0.73] U/g) as compared with those of the blank control ([40.2 ±7.4] μmol/L and [2.56 ±0.49] U/g) (both P<0.05), but the caspase3 ac-tivity was markedly decreased in the resveratrol group in comparison with that of the FFA group (P<0.05).Both early and late apop-tosis rates of the hepatocytes were remarkably higher in the FFA ([6.75 ±0.81]%and [8.52 ±0.54]%) and the resveratrol group ([4.94 ±0.44]%and [6.52 ±0.61]%) than those in the blank control ([3.38 ±0.33]% and [2.72 ±0.19]%) ( both P<0.05), with statistically significant differences between the former two groups (P<0.05).The resveratrol group showed significant differences in the GSH content ([100.2 ±8.8] nmol/g), the MDA level ([2.36 ±0.82] mg/g), and the relative expression of SIRT1 (0.84 ±0.04) from the FFA group ([73.8 ±13.1] nmol/g, [3.77 ±0.92] mg/g, and 0.61 ±0.07) and the control ([113.7 ±13.8] nmol/g, [1.85 ±0.41] mg/g, and 0.90 ±0.02) (all P<0.05).The resveratrol group also exhibited statistically significant differences in the relative expressions of the MnSOD , CAT, and Bax genes from the FFA and control groups (P<0.05). Conclusion Resveratrol attenuates FFA-induced apoptosis of human hepatic L 02 cells by activating SIRT1 and reducing the oxidative stress of hepatocytes .
8.Beclomethasone dipropionate cream combined with He-Ne laser irradiation treatment of nasal vestibule eczema.
Qun ZHANG ; Xianbing PENG ; Jianguo SHI ; Runzhi DAI ; Shengfu YU
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2014;28(22):1789-1790
OBJECTIVE:
To observe the clinical efficacy of nasal vestibule eczema by using beclomethasone dipropionate in combination with He-Ne laser therapy.
METHOD:
The 200 cases of nasal vestibule eczema patients were randomly divided into treatment and control groups. The control group received the rub beclomethasone dipropionate cream treatment one time per day. The treatment group supplemented with He-Ne laser irradiation treatment on the basis of the control group on the same treatment, alsoone time per day. Then the results were analyzed.
RESULT:
The total effective rate was 100.0% in treatment group, while 75.0% in the control group. The difference between the two groups was statistically significant (P < 0.05).
CONCLUSION
Beclomethasone dipropionate cream combined with He-Ne laser irradiation therapy on nasal vestibule eczema is significant, and easily to operate, with significant anti-inflammatory, anti-itch, analgesic effects.
Administration, Inhalation
;
Anti-Inflammatory Agents
;
administration & dosage
;
Beclomethasone
;
administration & dosage
;
Combined Modality Therapy
;
Double-Blind Method
;
Eczema
;
therapy
;
Glucocorticoids
;
Humans
;
Laser Therapy
;
Male
9.Effects of He-Ne laser irradiation on the expression of proliferating cell nuclear antigen and B cell lymphoma/leukemia-2 protein in the gastric mucosa of rats with chronic atrophic gastritis
Xuehui SHAO ; Jianguo WANG ; Xiaoli ZHANG ; Yueping YANG ; Jie DAI
Chinese Journal of Physical Medicine and Rehabilitation 2012;34(3):182-185
Objective To study the effects of He-Ne laser irradiation on histological changes and the expression of proliferating cell nuclear antigen ( PCNA ) and B-cell lymphoma/leukemia-2 ( Bcl-2 ) in the gastric mucosa of rats with chronic atrophic gastritis (CAG) so as to elucidate the relationship of He-Ne laser irradiation with precancerous lesions and apoptosis in the gastric mucosa. Methods The rats were divided into a normal group,a model group and a laser group.A model of CAG was established by gastric perfusion with a mixture of sodium salicylate and alcohol combined with irregular fasting and forced exercise.A He-Ne laser was used to irradiate the rats at 3.36 J/cm2 for 7 min daily for 20 d.Histopathological changes including the severity of inflammation in the gastric mucosa and the morphology and structure of the parietal cells were observed with a light microscope,and the expression of PCNA and Bcl-2 was detected with immunohistochemical methods. Results The pathologic morphological changes in the gastric mucosa of the model group were atrophy of the glands of the gastric mucosa and notable inflammatory infiltration.But in the laser group inflamed cells decreased,and the morphology,structure and volume of the cells all recovered close to normal.The immunohistochemistry results showed that during the atrophy of the gastric mucosa the expression of PCNA and Bcl-2 was elevated,and it was significantly higher in the model group than in the normal group.After irradiation the expression of PCNA and Bcl-2 was significantly lower. Conclusions There was hyper-proliferation in the gastric mucosa of the CAG model rats,with high expression of apoptosis suppressor PCNA and Bcl-2 proteins.Laser irradiation can reduce the expression of PCNA and Bcl-2,enhance cell proliferation and induce apoptosis,preventing the development of cancer.Laser irradiation has a good adjuvant therapeutic effect for all the pathological changes observed.
10.Effects of infrared rays on chronic atrophic gastritis in rats
Xuehui SHAO ; Jianguo WANG ; Yueping YANG ; Jie DAI ; Aihua BO
Chinese Journal of Tissue Engineering Research 2008;12(4):775-778
BACKGROUND: Recently, Chinese herb and comprehensive therapy are widely adopted for the treatment of chronic atrophic gastritis (CAG), while infrared ray is widely used in the fields of physical therapy and scientific research. Therefore, some scholars suggest whether the physical characteristics of infrared ray have effects on the treatment of chronic atrophic gastritis.OBJECTIVE: To observe the effect of infrared ray on the changes of gastric mucosa tissue in rat models with chronic atrophic gastritis.DESIGN: Randomized controlled observation.SETTING: Hebei North University.MATERIALS: Thirty-five adult Wistar male rats weighing from 180 to 230 g were purchased from Hebei Experimental Animal Center [SCXK (ji) 2003-1-003]. The experiment was disposed with the ethical standard. Sodium salicylate powder produced by Beijing Fangcao Chemical Company (batch number: 890720). The drug was prepared with distilled water. Infrared lamp (220 V, 200 W) was bought by Equipment Division of our college.METHODS: The experiment was carried out in the Experimental Center of Hebei Beifang College from June 2005 to January 2006. ① Experimental intervention: Rats were fed with conventional standard granules for one week. Among them, 8 rats were selected as the normal control group, and other rats underwent model establishment. Rats were perfused with sodium salicylate and alcohol to stimulate gastric mucosa, and then chronic CAG models were established for 8 weeks based on exertion, irregular diet and other factors. Five rats were randomly selected for the check of histopathology before the end of model confirmedly making, and then the model rats were randomly divided into model group and infrared group with 11 in each group. Infrared lamp (220 V, 200 W, 0.76–1.5 μm in wavelength) was used to vertically radiate at the gastric projective area of rats in the infrared group, once a day, ten minutes once for twenty days. The rats in normal group and model group were regularly breed. ② Experimental evaluation: The body mass was weighed every week in 1, 4, 9 and 12 weeks after modeling. The infiltration of inflammatory cells and thickness of gastric mucosa were observed under optic microscope.MAIN OUTCOME MEASURES: ① Changes of body mass; ② pathohistological changes of gastric mucosa.RESULTS: All 30 rats were involved in the final analysis. ① Changes of body mass: From the end of the 4th week, increasing percentage of body mass in the model group and infrared group was decreased gradually as compared with that in the normal group, and there was significant difference (P < 0.05). ② Pathohistological changes of gastric mucosa: Gastric mucosa of rats in the model group was thinner, and atrophic glands, notable inflammatory infiltration and partial intestinal metaplasia were observed under optic microscope. The thickness of gastric mucosa in the infrared group was significantly thicker than that in model control group, and there was significant difference (P < 0.01); the inflammatory cells in the infrared group were less than those in the model group, and there was significant difference (P < 0.05). Morphologic structure and volume of the parietal cells were all recuperated or closed to normal.CONCLUSION: Infrared ray can decrease thickness of gastric mucosa and reduce inflammatory cells of rats with chronic atrophic gastritis, and it has greatly therapeutic achievements.