1.Investigation on Outgoing Quality of Water Plants in Rural Areas in Dongguan, Shunde and Zhongshan of Guangdong
Journal of Environment and Health 1992;0(05):-
Objective To know the quality change trend of outgoing water from the water plants in the rural areas in Dongguan, Shunde and Zhongshan of Guangdong. Methods The quality reports of the outgoing water and the supply capacity of the water plants in 1999-2003 were analyzed. Results The up to standard rate of outgoing water showed an increase in the three areas in 1999-2003, from 98.00% to 98.55%, 95.13% to 99.43% and 97.95 to 99.63% respectively, but the bacteriological indexes were still noteworthy. Conclusion The outgoing quality of water plants in Dongguan,Shunde and Zhongshan of Guangdong is satisfactory, the up to standard rate of outgoing water from the larger scale plants is higher compared with the smaller ones.
2.Correlative risk factor comparison of mild hemorrhage between patients of acute cerebral infarction and transient ischemia attack
Lisheng ZHOU ; Gan CHEN ; Guangrong CHEN
Chinese Journal of Postgraduates of Medicine 2014;37(16):34-36
Objective To compare the risk factors of mild hemorrhage and diiferences of TOAST type in patients with acute cerebral infarction (ACI) and transient ischemia attack (TIA).Methods Forty patients with mild hemorrhage were divided into ACI group(24 cases) and TIA group(16 cases) according to disease classification.Risk factors such as age,blood pressure,blood lipid and so on between 2 groups were compared,TOAST subtype differences of 2 groups were compared.Results The age [(73.3 ± 4.1) years],the ratio of hypertension [95.8%(23/24)],leukoaraiosis [70.8%(17/24)] in ACI group was significantly higher than that in TIA group [(65.5 ± 5.6) years,13/16,9/16],there was significant difference (P < 0.05).The ratio of large-artery atherosclerosis and cardioembolism in ACI group [75.0% (18/24) and 16.7% (4/24)] was significantly higher than that in TIA group (8/16 and 1/16),there was significant difference (P < 0.05).But the ratio of small artery occlusion in ACI group [8.3% (2/24)] was significantly lower than that in TIA group (7/16),there was significant difference (P < 0.05).Conclusion Correlative risk factors of milde hemorrhage in ACI and TIA patients have significant differences.
3.Expression of HOXB9 Gene in Hela Cells,Mocoy Cells, SP2/0 Cells and U251 Cells
Gan DAI ; Liyu CHEN ; Yanhui LUO
Journal of Chinese Physician 2001;0(04):-
Objective To study the expression of HOXB9 gene in Hela cells,Mocoy cells, SP2/0 cells and U251 cells. Methods The expression of HOXB9 gene was detected by semi-quantitative RT-PCR method. Results Hela cell and U251 cell expressed HOXB9 gene, which SP2/0 cell and Mocoy cell didn't express it. Conclusion The expression of HOXB9 gene was different in different cells.
4.Investigation of the Poisoning Accident Caused by Clearing up the Disused Bloat Pool of Green Plums
Guiguo BIAN ; Jianbiao GAN ; Hong CHEN
Journal of Environment and Health 1993;0(03):-
Objective To introduce a poisoning accident caused by clearing up the disuced bloat pool of green plums. Methods In a certain area in Fujian happened a poisoning accident in which many people poisoned. The site of monitoring was carried out immediately. Results The concentrations of hydrocyanic acid, acetonitrile, methane, and carbon dioxide were very high in the air of the pool. Conclusion The main cause of the poisoning was that the cyanogenic glycosides contained in the nucleolus of the green plums. After broken down, the cyanide was released, and then the cyanide synergistic effect with the asphyxiating gas such as methane and carbon dioxide developed also. Treated the sediment and waste water with bleaching powder and lime, cyanide had been eliminated efficiently.
5.Gene mutation detection for a patient with anhidrotic ectodermal dysplasia
Yunna GAN ; Zhongyi WANG ; Sumin CHEN
Journal of Practical Stomatology 2001;0(03):-
Objetive:To detect the gene mutation of a patient with anhidrotic ectodermal dysplasia. Methods: Genomic DNA was extracted from the peripheral blood of the patient and all the exon fragments were obtained by PCR. These fragments were sequenced directly. Results: In EDA gene a novel base transition was detected: -48A→G. Conclusion: There is a new base transition in EDA gene in this patient
6.The effect of glutaraldehyde disinfectant on the dimension stability of four high polymer impression materials
Fangchong DU ; Jihua CHEN ; Yunna GAN
Journal of Practical Stomatology 1996;0(02):-
Objective:To measure the effect of disinfection on dimension stability of four high polymer impression materials which were separately immersed in 20 ml/L glutaraldehyde solution.Methods:Fifteen plaster replication models of four high polymer impression materials(Impregum Penta polyether, Express-Putty silicone, Silagum-Putty silicone, GC EXAFINE silicone) were made on the same metal master cast respectively. Vertical and horizontal dimensions between landmarks on the masters and plaster casts were measured with an optical microscope,one-way ANOVA was used to compare the measurements among the materials.Results:The difference between the masters and Casts in horizontal distances measured on Express-Putty silicone impression material produced models was longer than those on other high polymer impression materials produced ones after disinfection for 20 minutes and beyond clinical requirement. Compared with metal master cast, the difference became significant when these four silicone impression materials were disinfected for 40 minutes. Conclusion: Among the four kinds of impression materials, the Express-Putty silicone material is relatively the most accurate one after disinfection for 20 minutes.
7.Establishment of Mathematic Model of the Correlativity of HCMV Infection Between Mothers and Their Newborns
Guojun WU ; Shuzheng CHEN ; Gan DAI
Journal of Chinese Physician 2000;0(12):-
Objective To establish a mathematic model of correlativity of human cytomegalovirus(HCMV) infection between mothers and their newborns.Method The plasma HCMV-IgM content,HCMV-DNA levels in plasm and peripheral blood mononuclear cells (PBMCs) were assayed with ELISA and PCR technique.Results There was a evident correlation between the two generation,and there was largest correlativity between HCMV-DNA level of mother's plasma and HCMV congenital infection rate,its spearman rank correlative coefficient was 0 7018(P
8.Electrocoagulation of Gallbladder Artery in Laparoscopic Cholecystectomy
Xin CHENG ; Xinyi CHEN ; Youjun GAN
Chinese Journal of Minimally Invasive Surgery 2014;(7):667-668
Objective To investigate the safety and feasibility of electrocoagulation of gallbladder artery in laparoscopic cholecystectomy ( LC) . Methods A total of 376 patients with gallbladder benign diseases underwent LC in our hospital from May 2004 to September 2013.The gallbladder artery was treated by electrocoagulation . Results Because of unclear gallbladder triangle due to abdominal adhesion , conversion to laparotomy was performed in 9 patients.In the remaining 367 patients, three-port LC with electrocoagulation of the gallbladder artery was conducted successfully .Laparoscopic appendectomy was conducted simultaneously in 12 patients.An additional fenestration and drainage of the left renal cyst was performed in 1 patient.Postoperatively, a secondary bile duct exploration was conducted in 1 patient because of bile duct obstruction caused by common bile duct stones . Conclusion The electrocoagulation of gallbladder artery is safe and feasible in LC for the treatment of gallbladder benign diseases .
9.Study on Quality Standard for Fangzhi Biyan Tablet
Qi FENG ; Yemei GAN ; Kunfeng CHEN
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(06):-
Objective To establish the method for quality standard of Fangzhi Biyan Tablet. Methods Radix Angelicae Dahuricae, Radix Paeoniae Alba, Radix Saposhnikiviae and Radix Glycyrrhizae in the tablet were identified by TLC. The content of Imperatorin in this medicine was determined by HPLC. The Agilent Eclipse XDB-C18 (4.6 mm?250 mm, 5 ?m) was used, mobile phase was methanol-0.1%phosphoric acid solution (65∶35), flow rate was 1.0 mL/min, detection wavelength was 248 nm. Results The TLC spots developed were fairly and simply identical. HPLC was accurate and reproducible. Imperatorin show a good liner relationship at range of 0.076~0.684 ?g, the recovery was 98.63% (RSD=1.52%). Conclusion These methods can be used to control the quality of Fangzhi Biyan Tablet effectively.
10.A Comparison of Cognition between Cancer Patients and Their Relatives
Yong GAN ; Zhixiong LIN ; Shijian CHEN
Chinese Mental Health Journal 1988;0(06):-
Objective: To compare the cognition of cancer patients and their relatives,so as to provide references for cognitive intervention.Methods: Cognition questionnaire consists 19 questions to which most patients and their relatives concern.Sixty new cases of cancer patients and their relatives were included in this study.Results: Answers to the 5 following questions from the patients and their relatives were different with statistical significance: do you know the diagnosis(83% patients know,97% relatives know,?2=5.93,P=0.015);whether to inform patients of diagnosis or not(87% patients chose yes,65% relatives chose yes,?2=7.69,P=0.006);is it necessary to tell patient intimate therapeutic regimen(77% patients thought it is necessary,62% relatives thought it is necessary,?2=8.71,P=0.013);who decide the method(s) of treatment(7% patients and 17% relatives' answer is the patients,?2=7.19,P=0.028);if the treatment is unable to cure your disease,what would be your option(80% patients and 97% relatives chose treatment,?2=8.09,P=0.004).Different educational background(?2=5.63,P=0.018) and occupation(?2=4.10,P=0.043) affected their cognition on being informed of the intimate therapeutic regimen.Conclusion:Patients` and relatives` cognition of being informed of the diagnosis and therapy are diverse from each other.In communication with them,doctors must treat them respectively.