1.Clinical Analysis of 48 Children with Phenylketonuria
Journal of Applied Clinical Pediatrics 2004;0(08):-
20 mg/L again.Children without treatment regulared exam for phe concentration level in blood and test for physical and mental capability development.Results Forty-eight children with PKU were diagnosed in 355 615 newborns who were collected from June 1999 to April 2005.The incidence rate of PKU was 1/7408,carriers with PKU gene was 1/48.There was no significant difference in physical and mental condition compared with that of normal children.Conclusions The treatment results for children with PKU is significant.It has good social and economic value.It is one of the important measures for reducing infant defect and improving population quality.
2.Design and manufacture of simple isolated therapeutic mask for limbs
Qing ZHU ; Lingdi CHEN ; Lin YUAN
China Medical Equipment 2013;(11):68-69
Objective:To solve the problem of treating trauma limbs according to the requirement of therapy and care with the most effective method and the least cost, while the method should be clinical facilitated. Methods:The major part is a long squared mask made of light material with two gabs in each tips, one is smaller, the other is bigger, which just suit with the trauma limbs and hold them(legs or arms). We designed a window at the top of the mask, and some slots around the window. And the appendix boxes in the slots can be added or changed according to clinical therapy. Results:Simple isolated therapeutic mask for limbs can be used only as a simple facility for trauma limbs isolation, and also can be used as a facility of warming, heating, irradiation and sterilization. Conclusion:Simple isolated therapeutic mask for limbs has been admitted as a patent of utility model by State Intellectual Property Office (SIPO) (patent number:ZL200620073372.8). The mask features simple manufacture, low cost, easy to use and reliable effects, can be used not only in every kinds of hospital, but also at home.
3.The Mechanism of Signal Recognition and Transduction in the Establishment of Mycorrhizal Associations
Zhi-Lin YUAN ; Lian-Qing CHEN ;
Microbiology 1992;0(01):-
Multiplicity of signals and diversity of signaling pathways exist during the establishment of mycorrhizal associations together with the regulation of symbiosis-specific genes expression.This mechanism of signal recognition and transduction related with development process of the symbiont was reviewed at the molecular level.
4.Application of penehyclidine hydrochloride in whole lung lavage.
Qi-yuan FAN ; Hong-xia CHEN ; Ye-qing CAO
Chinese Journal of Industrial Hygiene and Occupational Diseases 2010;28(7):541-541
Adult
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Bronchoalveolar Lavage
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methods
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Humans
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Male
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Middle Aged
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Pneumoconiosis
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therapy
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Quinuclidines
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therapeutic use
5.HMGB1 upregulates P-glycoprotein expression in the brain microvascular endothelial cells of the mouse
Yan CHEN ; Nian YU ; Yuan XIE ; Kang ZHANG ; Qing DI
Journal of Medical Postgraduates 2015;(2):141-145
[Abstract ] Objective High-mobility group box-1 (HMGB1) is abundantly released in the epileptogenic brain tissue , but few reports are seen about the effect of HMGB 1 on the expression of P-glycoprotein ( P-gp) in the vascular endothelial cells of the epi-leptogenic tissue .This study is to explore whether HMGB 1 can regulate P-gp expression in the brain microvascular endothelial cells of the mouse in vitro . Methods Immortalized brain microvascular endothelial bEnd .3 cells of the mouse were cultured in vitro and al-located to different concentration groups ( treated with culture medium containing 10 , 100 , 500 , and 1000 ng/mL HMGB1 for 8 hours), treatment duration groups (treated with culture medium containing 100 ng/mL HMGB1 for 4, 8, 16, 24, and 32 hours), and a control group ( treated with culture medium without HMGB 1 ) .The mRNA expression of P-gp-encoding gene-multidrug resistance gene 1a (mdr1a) was detected by real-time qPCR, and its protein expression determined by Western blot and immunocytochemistry . Results The results of qPCR manifested that the expressions of mdr 1a mRNA were 1.646 ±0.176, 1.777 ±0.135, 1.617 ±0.043, and 1.398 ±0.182 in the 10, 100, 500, and 1000 ng/mL HMGB1 groups, respectively, significantly higher than 1.030 ±0.284 in the control group (P<0.05), and so were those in the 4, 8, 16, 24 h, and 32 h groups (2.655 ±0.112, 2.168 ±0.212, 1.823 ± 0.232, 1.418 ±0.376, and 1.445 ±0.123) than in the control (1.010 ±0.164) (P <0.05).Western blot showed a significant increase in the P-gp protein expression in all the concentration groups (P<0.05) as well as in the 8 h and 16 h treatment duration groups as compared with the control group (P<0.05).Immunocytochemis-try also revealed a higher P-gp expression in the HMGB1-treated than in the control cells (P<0.01). Conclusion HMGB1 can upregu-late the expressions of mdr1a mRNA and P-gp protein in the brain microvascular endothelial cells of the mouse , which may associated with drug resistance of central nervous system diseases , especially that of epilepsy .
6.Report on 220 cases of endoscopic septoplasty with submucous resection
Yuan SHAO ; Ruimin ZHAO ; Qing CHEN ; Yongping JIA
Journal of Pharmaceutical Analysis 2010;22(4):277-280
Objective To explore the efficiency of endoscopic septoplasty with submucous resection for the treatment of 220 patients with deviated nasal septum and report our experience in this field. Methods From May 2006 to May 2010, 220 patients with deviated nasal septum were treated by endoscopic septoplasty with submucous resection to decompress the stress points, resect the deviated parts and implant the reshaped bone of nasal septum, while retaining the normal structure of nasal septum with minimally invasive technique. Results Satisfactory effects were achieved in all the 220 patients, showing centered septal structure and disappeared symptoms such as nasal obstruction, headache and nasal hemorrhage, but no complications including perforation of nasal septum, depressed nasal bridge and septal chalasia and flaring. Conclusion Rhino-endoscopic septoplasty with submucous resection can substantially retain the original structure of nasal septum and thus is proven to be a desirable operation with multiple advantages including minimal invasiveness, quicker healing and fewer complications.
7.Determination of prulifloxacin active metabolite in human plasma and urine by RP-HPLC
Juan HE ; Yong-Chuan CHEN ; Qing DAI ; Pei-Yuan XIA ;
Chinese Journal of Infection and Chemotherapy 2007;0(01):-
Objective To establish a RP-HPLC method for determining the concentration of prulifloxacin active metabolite in human plasma and urine.Methods The supernatant obtained by centrifugation after the sample was precipitated with methanol- acetonitrile (1:1) was chromatographically separated on a Diamonsil C_(18)(250 mm?4.6 mm,5?m) using a mobile phase con- sisting of acetonitrile and 0.05 mol/L potassium dihydrogen phosphate (pH2.2) containing 1% tetrabutylammonium bromide. The solutions of 20:80 (V/V) and 12:88 (V/V) at a flow rate of 1.0 mL/min and 1.6 mL/min were used for plasma and u- rine, respectively.Then the samples were assayed at wavelength of Ex 280 nm and Em 425 nm.Results The linear range for prulifloxacin active metabolite in plasma and urine were 0.005-5 mg/L (r=0.9999) and 0.05-5 mg/L(r=0.9999)with a low- er limit of quantitation of 0.002 mg/L and 0.01 rag/L, respectively.In plasma, the relative recovery ranged from 100.64% to 101.00% at the concentration of 5.00, 0.50 and 0.05 mg/L and within-day and between-day precisions were less than 2.5% and 4.6% respectively.Meanwhile, the relative recovery ranged from 97.20% to 100.20% at the concentration of 2.50, 0.50 and 0.10 mg/L in urine.The within-day and between-day precisions were lower than 1.3% and 4.3%, respectively.The method had been successfully used for the pharmacokinetic studies of a prulifloxacin formulation after oral administration to healthy volunteers.Conclusions The present method is simple, rapid, accurate, reproducible and suitable for the pharmacoki- netic study of prulifloxacin in humans.
8.Diagnostic value of LUNX gene to marrow micrometastases of lung cancer
Xue-Yuan QI ; Yu-Qing CHEN ; Heng ZHANG ;
Chinese Journal of Laboratory Medicine 2000;0(06):-
Objective To explore the diagnostic value of LUNX gene to marrow micrometastases of lung cancer.Methods To detect LUNX mRNA of marrow samples of 51 patients of lung cancer,4 patients of breast cancer,6 patients of lymphadenoma,3 patients of liver cancer and 22 patients of benign disease by real-time RT-PCR.Results The positive detection rate and meso-copies of lung cancer were 58.8% (30/51) and 35copies/ml respectively.The positive detection rate and meso-copies of other diseases were all 0,The positive detection rate and meso-copies of lung cancer was significantly higher than that of patients with other diseases (x~2=11.12,U_c=3.7329,P
9.Detection of lymphocyte subsets in the application of the infectious diseases
Shaoyan CHEN ; Jiduo LIU ; Mingfeng XIAO ; Qing YUAN ; Guangping LIU
International Journal of Laboratory Medicine 2017;38(2):206-208
Objective Investigate the different changes of host cellular immunity in patients with different infection by compa-ring peripheral blood lymphocyte subsets.Methods Flow cytometry was used to detect the peripheral blood lymphocyte subset a-mong 96 patients including 31 bacterial infection cases,13 fungal infection cases and 62 virus infection cases.Results Compared with control group the ratio of CD3 + T cell was increased in virus group,and the ratio of CD4 + T was decreased in fungi and virus group and the fungus is lower than the virus group,while the ratio of CD8 + T cell was increased in the two groups,and fungi group is higher than the virus,CD4 +/CD8 + ratio in the two groups were reduced.Three groups of NK cells (of CD16 + CD56 + )ratio was reduced to some extent,and bacteria group was lower than that of other two groups.The ratio of B cell was increased in Bacteria group and it was more obvious in the G+ bacteria.NK cells in G+ bacteria and G- bacteria group were relatively lower than control group,but the difference between the two groups was not significance.In virus infection cases,the ratio of CD3 + T in HBV group was higher than that of dengue fever group.And the ratio of CD3 + and NK cells were increased in the two groups.The ratio of CD4 + was decreased in dengue fever group.Conclusion Detection of lymphocyte subset can objectively reflect and help to under-stand the state of the immune function of patients with infectious diseases,providing laboratory basis for the diagnosis and preven-tion in order to reduce the infectious risk and side effect.
10.Expression of miRNA-1247-3P in acute respiratory distress syndrome cell model and its function
Dongliang CHENG ; Yuan LIANG ; Yanchen CHEN ; Di QING ; Changsong SHI
The Journal of Practical Medicine 2015;(17):2802-2804
Objective To detect the expression pattern of microRNA in A549 cells treated by lipopolysaccharide, study the expression of miRNA-1247-3P in A549 cells under LPS treatment and explore the possible mechanism of miRNA-1247-3P in A549 cells under LPS treatment. Methods A549 cells were divided into experimental and control groups. Immunocytochemical method and RT-PCR were used to detect the changes of SP-A and SP-C. The expression of miRNAs were detected using miRNAs array in different groups. The key miR-1247-3P was collected to detect the changes of miR-1247-3P in all groups using quantitative real-time polymerase chain reaction. Results Compared with control group, the expressions of SP-A and SP-C were significantly decreased in the experimental groups (P < 0.05). MiRNA array showed that 31 miRNAs were up-regulated and 3 miRNAs were down-regulated. Compared with control group, the expression of miR-1247-3P was significantly increased in the experimental groups (P < 0.05). Conclusion The increased expression of miR-1247-3P may play an important role in the pathogenesis of ARDS.