2.Study on the map of plasmid of Y. pestis in the R. opimus natural plague foci in Junggar Basin
Rong GUO ; Youquan XIN ; Xinhui WANG ; Zhizhen QI ; Xiang DAI
Chinese Journal of Microbiology and Immunology 2009;29(4):291-293
Objective To investigate the type of plasmid map of Y. pestis in the R. opimas natural plague loci in Junggar Basin. Methods A total of 39 plasmid DNA of Y. pestis which were isolated from the natural plague loci of Junggar Basin, Tianshan Mountain, Kunlun Mountain, Qinghai-Tibet Plateau and In-ner Mongolia were extracted by the methods of Kado and Liu. The plasmid map was analyzed by the methods of agarose gel eleetrophoretogram. Results Two types of plasmid map were found in 26 Y. pestis which were isolated from Junggar Basin. Of them 23 were 6 × 106, 45 × 106 and 65 × 106 type of plasmid map, and 3 were 6 × 106, 45 × 106 and 72 × 106 type. Conclusion There are two types of plasmid map in the R. opi-mus natural plague loci in Junggar Basin. One type, which is the dominant type in this area, is 6 × 106, 45 × 106 and 65 × 106 type. This type is also similar to the dominant plasmid map type of the nature plague loci of Tianshan Mountain, Kunlun Mountain, Qinghai-Tibet Plateau and Inner Mongolia. The other type is 6 × 106, 45 × 106 and 72 × 106 type, and this type is new plasmid map type of Y. pestis in our country.
3.Reconstruction of soft tissue defects at nose, lip, and cheek with facial artery perforator flaps.
Peipei ZHANG ; Chao YANG ; Xin XING ; Haiying DAI ; Lingli GUO ; Wenliang LYU
Chinese Journal of Plastic Surgery 2016;32(1):35-38
OBJECTIVETo investigate the therapeutic effect of facial artery perforator flap for the soft tissue defects at nose, lip and cheek.
METHODSThe facial artery perforator adjacent to the defect was identified by Doppler ultrasonography. The perforator flap was designed according to the defect location, size and shape. The subcutaneous tissue around the perforator was kept as much as possible to protect the venous drainage.
RESULTSFrom Oct. 2012 to Oct.2013, 26 cases were treated with facial artery perforator flaps, with 9 cases of nasal defects, 10 cases of lip defects and 7 cases of buccal defects. The defects size ranged from 1.5 cm x 2.0 cm to 3.0 cm x 3.0 cm and the flaps size ranged from 2.0 cm x 2.5 cm to 3.5 cm x 3. 5 cm. Superficial necrosis(3mm in width) happened at the end of one flap. All the other 25 flaps survived completely. 16 cases were followed up for 3 months to 2 years with no relapse and satisfactory cosmetic and functional results were achieved.
CONCLUSIONSBoth cosmetic and functional effect can be achieved with facial artery perforator flap for defects at nose, lip and cheek.
Arteries ; Cheek ; surgery ; Graft Survival ; Humans ; Lip ; surgery ; Nose ; surgery ; Perforator Flap ; blood supply ; transplantation ; Rhinoplasty ; methods
4.Resuits of the national surveillance on endemic fluorosis in Fengshun County of Guangdong Province in 2005-2006
Jin-quan, WU ; Chang-Fang, DAI ; He-yan, WU ; Guang-hui, FENG ; Guo-xin, DU
Chinese Journal of Endemiology 2008;27(6):673-674
Objective To investigated to implement condition of preventive measure and control effect for endemic fluorosis in Fengshun County from 2005 to 2006.Methods It was investigated according to the National Surveillance Program of Endemic Fluorosis.Hupo,Daizai and Anquan Villages of Tangxi Town in Fengshun County were selected as monitoring spots.The usage of reforming water facilities,fluoride content in drinking water and urine of children aged 8-12 years and the prevalence rate of dental fluorosis of children were investigated.Resul tsin 2005 and 2006.a total of 18 reforming water facilities were surveyed and six of which were damaged or out of service.In 2005,the fluoride content in drinking water in the 3 villages was 2.10,1.22 and 0.15 mg/L The prevalence rate of dental fluorosis of children aged 8-12 years was 54.23%(64/118),38.91%(79/203) and 9.10%(6/66).The urine fluoride content of children was 0.95,0.90 and 1.05 mg/L,respectively.In 2006,the fluoride content in drinking water in Hupo,Daizai and Anquan Village was 2.01,1.57 and 0.21 mg/L.The prevalence rate of dental fluorosis of children aged 8-12 years was 26.47%(27/102),12.50%(23/184)and 6.15%(4/65),respectively.The urine fluoride content of children was 0.97,0.61 and 0.59 mg/L.Conclusions The outcome of surveillance data in Fengshun County has reached the sanle level as that of non-disease area.However,the management of reforming water facilities should be improved.
5.Application of central randomized system in project of clinical trial for secondary prevention of myocardial infarction by Qishen Yiqi Drop Pill.
Guo-hua DAI ; Bo-li ZHANG ; Zhi-xin GUO
Chinese Journal of Integrated Traditional and Western Medicine 2007;27(7):653-656
Central randomized system (CRS) is actually a management system for actualizing process of clinical trial, which can not only reduce the factitious jamming during randomization to avoid bias, but also play an important role in drug supervision during long-term and large-scale clinical trials in which a large amount of drugs are applied. This article introduced the two main functions of the CRS, i. e. the randomization of testees and the management of drugs, as well as the key points and instructions for applying clinical research interactive voice responding system (CRIVRS) in operating the project of clinical trial for secondary prevention of myocardial infarction by Qishen Yiqi Drop Pill.
Automatic Data Processing
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Drugs, Chinese Herbal
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therapeutic use
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Female
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Humans
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Male
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Multicenter Studies as Topic
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Myocardial Infarction
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prevention & control
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Phytotherapy
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Randomized Controlled Trials as Topic
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Research Design
6.Study on 4977 base pair deletion in mitochondrial DNA in lung cancer tissues.
Ji-gang DAI ; Ying-bin XIAO ; Jia-xin MIN ; Guo-qiang ZHANG ; Ke YAO ; Ren-jie ZHOU
Chinese Journal of Pathology 2005;34(12):804-805
Adenocarcinoma
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genetics
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Adult
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Age Factors
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Aged
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Base Sequence
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Carcinoma, Squamous Cell
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genetics
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DNA, Mitochondrial
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genetics
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Female
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Humans
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Lung Neoplasms
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genetics
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Male
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Middle Aged
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Sequence Deletion
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Smoking
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genetics
7.Relationship between malt qualities and beta-amylase activity and protein content as affected by timing of nitrogen fertilizer application.
Jin-Xin CHEN ; Fei DAI ; Kang WEI ; Guo-Ping ZHANG
Journal of Zhejiang University. Science. B 2006;7(1):79-84
The effects of different timing of N fertilizer application at the same rate on grain beta-amylase activity, protein concentration, weight and malt quality of barley were studied. Grain beta-amylase activity and protein concentration were significantly higher in treatments where all top-dressed N fertilizer was applied at booting stage only or equally applied at two-leaf stage and booting stage than in the treatment where all top-dressed N fertilizer was applied at two-leaf age stage only. On the other hand, grain weight and malt extract decreased with increased N application at booting stage. There were obvious differences between barley varieties and experimental years in the grain and malt quality response to the timing of N fertilizer application. It was found that grain protein concentration was significantly and positively correlated with beta-amylase activity, but significantly and negatively correlated with malt extract and Kolbach index. The effect of grain protein concentration on malt quality was predominant over the effect of grain beta-amylase activity.
Agriculture
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methods
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Edible Grain
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chemistry
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drug effects
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metabolism
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Enzyme Activation
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Fertilizers
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Hordeum
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drug effects
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metabolism
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Nitrogen
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administration & dosage
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Plant Proteins
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metabolism
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Statistics as Topic
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Time Factors
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beta-Amylase
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chemistry
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metabolism
8.Study of change in activity of hepatic drug metabolism enzymes in rat model of chronic unpredictable mild stress.
Yu-xin ZANG ; Bing-ting SUN ; Wen-zhu ZHAO ; Na RONG ; Guo-liang DAI ; Wen-zheng JU ; Heng-shan TAN
Acta Pharmaceutica Sinica 2015;50(3):319-325
This study aimed to explore the impact of depression caused by chronic unpredictable mild stress (CUMS) on in vivo activity of six kinds of CYP450 isoforms in rats. According to 'Katz' method, the model of CUMS was established. Tolbutamide, chlorzoxazone, theophylline, midazolam, omeprazole and dextromethorphan were chosen as probe substrates of CYP2C6, CYP2E1, CYP1A2, CYP3A2, CYP2D1 and CYP2D2 of rats. Plasma concentration of six kinds of CYP450 in control group and model group were determined by LC-MS/MS and computed pharmacokinetic parameters. Consequently, metabolism of theophylline and chlorzoxazone accelerated significantly (P < 0.01), but tolbutamide, dextromethorphan, omeprazole and midazolam had no significant difference. The present study proved that depression caused by CUMS had strong induction to CYP1A2 and medium induction to CYP2E1.
Animals
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Chlorzoxazone
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metabolism
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Chromatography, Liquid
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Cytochrome P-450 Enzyme System
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metabolism
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Depression
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Dextromethorphan
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metabolism
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Liver
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enzymology
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Midazolam
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metabolism
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Omeprazole
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metabolism
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Rats
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Stress, Physiological
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Tandem Mass Spectrometry
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Theophylline
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metabolism
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Tolbutamide
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metabolism
9.Mechanism study of the transmission of moxibustion heat in human acupoint tissues
Jia-Feng DING ; Xin CHU ; Xiao-Rong CHANG ; Xin-Mei LI ; Yao ZENG ; Jian LIANG ; Xue-Mei XU ; Ding-Yan BI ; Mi LIU ; Guo-Bin DAI
Journal of Acupuncture and Tuina Science 2019;17(1):24-30
Objective:To discuss the topical action characteristics of the biological transmission of moxibustion heat via temperature collection and numerical modeling.Methods:Temperature of moxibustion was measured at multiple points at a distance of 3 cm to obtain the moxibustion temperature field nephograms by the high-accuracy temperature measure array.Finite element analysis was used to imitate the three-dimensional dynamic distribution of temperature in acupoint tissues.Results:Through numerical analysis,the one-dimensional,two-dimensional and three-dimensional distributions of temperature in human acupoint tissues at 5 min of moxibustion were established.The result showed that moxibustion heat mainly transmitted from the surface of the tissue to the internal,and the influence of moxibustion heat decreased with the depth of the tissue.The analysis of the nephograms of acupoint tissue temperature at 5,10,15 and 20 min of moxibustion showed that with the increase of the moxibustion time,the temperature in acupoint tissues constantly rose,and the transmission depth of moxibustion heat also further expanded inside acupoint.Conclusion:By establishing the three-dimensional dynamic model of heat transmission inside acupoint tissues with the biological parameters of human tissues and the temperature values obtained,this study used finite element analysis software ANSYS 14.0 and discovered the rules in the transmission of heat in body tissues during moxibustion,and the features in moxibustion heat transmission (from the proximal to the distant) and heat penetration (from the surface to the internal).This study provides theoretical and experimental support for the application of moxibustion in clinical practice.
10.Medium-term follow-up outcomes of total hip arthroplasty for patients with ankylosing spondylitis.
Bu-guo XU ; Shi-gui YAN ; Xiang-hua WANG ; Hao-bo WU ; Li-dong WU ; Rong-xin HE ; Xue-song DAI
China Journal of Orthopaedics and Traumatology 2013;26(12):1052-1056
OBJECTIVETo retrospectively study medium-term follow-up outcomes of total hip arthroplasty (THA) for patients with ankylosing spondylitis (AS).
METHODSFrom January 2000 to December 2008, 67 patients (88 hip joints) with AS were treated with all ceramic interface THA. And 55 patients (74 hips) were finally followed up. Among them, there were 30 males and 25 females, with an average age of 32.6 (ranged 19 to 58) years old. Sixty-one hips were treated with biological prosthesis and 13 hips were treated with hybrid prosthesis. Fifty-five patients were followed up at least 5 years, with an average of (75.2 +/- 8.6) months. Clinical symptoms and radiography information were evaluated after follow-up.
RESULTSHarris hip score were significantly improved from 30.8 +/- 7.0 preoperatively to 85.2 +/- 5.5 at the last follow-up (P<0.01). The hip movement range increased from (21.2 +/- 8.5) degrees preoperatively to (142.0 +/- 10.2) degrees postoperatively (P<0.01). The 5-year survival of prosthesis was 95.9%. One patient were renovated because of internal wall broken caused by injury, 1 was renovated for infection, 1 was renovated for fracture arround femoral stem prostheses, and 1 was treated with conservative treatment by dislocation. Three cases with abnormal sound were cured with non-operation. 7 cases with heterotopic ossification were not treated, 2 cases with thigh pain received conservative treatment. Bone dissolve around prosthesis, loose and sink of femur and acetabulum prosthesis were occurred in other cases.
CONCLUSIONTHA for the treatment of AS is a reliable method, which has a satisfied medium-term follow-up outcomes.
Adult ; Arthroplasty, Replacement, Hip ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Spondylitis, Ankylosing ; surgery ; Treatment Outcome ; Young Adult