1.The microscopic cavernous sinus surgery via the extended transsphenoidal approach: an anatomical study of cavernous sinus
Shan HUANG ; Yi ZHANG ; Ying XIA
Chinese Journal of Nervous and Mental Diseases 2009;35(12):709-712
Objective This study aimed to establish an anatomic basis for the microscopic surgical anatomy of the cavemous sinus via the extended transsphenoidal approach.Methods Simulated surgery via extended transsphenoidal ap-proach was performed on seven adult cadaver heads with red--colored latex injected arteries.The cavernous segment of the ICA and its branch vessels and its relationship with cranial nerve were exposed and its anatomic parameters were measured under microscope.Results The tuberculum sellae,clivus,sellar base,ICA prominence,and optic nerve prominence are the important bone landmarks to define the surgical area.The average of the extent of bone removal of extended transsphe-noidal approach is 37.6 mm(range:28.7 mm~44.0 mm).Conclusions The bone removal from sellar base to the media edge of the foramen rotundum and over the ICA prominence can effectively expose the entire unilateral cavernous sinus.The microscopic cavernous sinus surgery via the extended transsphenoidal approach is an optimal surgical approach for the le-sions that invade the cavernous sinus from sella.
2.Study on the Innovation System Synergy Degree of Pharmaceutical Manufacturing Industry in Shanghai Based on the Composite System Synergy Degree Model
Xinnan ZHANG ; Yi YANG ; Shan GAO
China Pharmacy 2017;28(19):2596-2601
OBJECTIVE:To study the innovation system synergies of pharmaceutical manufacturing industry in Shanghai and lay the foundation for further enhancing the competitiveness of pharmaceutical enterprises of Shanghai. METHODS:Based on the composite system synergy degree model,order variables(G)of innovation environment(S1),innovation technology research and development(S2),innovation technology absorption(S3)and innovation output(S4)in the pharmaceutical manufacturing industry innovation system in Shanghai during 2006-2014 were selected,synergy degree model was built,and order parameter,order de-gree,synergy degree of each order variable were calculated in turn. RESULTS & CONCLUSIONS:S1-S4 obtained 4,4,4,2 or-der variables respectively. According to the calculation,synergy degree of pharmaceutical manufacturing industry in Shanghai dur-ing 2006-2014 ranged in -0.195-0.202,average value was -0.068,overall in the level ofinverse synergyandnon-synergy. Thus,the internal development of the pharmaceutical manufacturing innovation system in Shanghai is more disorderly. It is suggest-ed to reform from the two core influencing factors of the stability of innovative environment and promoting technology absorption, including accelerating the transformation and upgrading of the pharmaceutical industry to create a stable and innovative environ-ment,increasing the innovation investment of the pharmaceutical industry to improve the level of technology absorption and inde-pendent innovation,as well as strengthening cooperation within and outside the domain to effectively enhance the system synergy degree level of pharmaceutical manufacturing innovation system in Shanghai.
3.The role of Clq receptor and anti-Clq antibody in the pathogenesis of systemic lupus erythematosus
You SUN ; Feng-Shan ZHANG ; Zhi-Yi ZHANG ;
Chinese Journal of Rheumatology 2000;0(06):-
Objective To investigate the expression of Clq complement receptor(ClqRp and gClqR)in the peripheral blood mononuclear cells(PBMC)of systemic lupus erythematosus(SLE), and the corre|ation between serum levels of complement lq(Clq)and anti-Clq autoantibodies(ClqAb)with ClqRp and gClqR is analyzed. The probable mechanism of ClqRp and gClqR in the development of SLE is explored. Methods The peripherial blood monouclear cells of 58 SLE patients and 30 healthy subjects were collected for the detection of the expression of ClqRp and gClqR by flow cytometry. The serum levels of Clq and ClqAb were detected by single radial immunodiffusion and enzyme-linked immunosorbent assay(ELISA)re- spectively. The correlation between ClqRp and gClqR and other disease activity parameters, such as Clq, ClqAb, SLEDAI score, anti-dsDNA antibody, C3, C4 levels were analyzed. Results The expression of ClqRp on mononuclear and neutrophiles of SLE was(7.2?2.3)% and(3.4?2.1)%, lower than that in healthy individuals [(10.6?2.1)% and(9.0?8.7)% ], P
4.Analysis of family environment of children with attention deficit hyperactivity disorder in clinics
Li-shan, ZHANG ; Xing-ming, JIN ; Yi-wen, ZHANG
Journal of Shanghai Jiaotong University(Medical Science) 2009;29(7):794-797
Objective To investigate the characteristics of family environment in children with attention deficit hyperactivity disorder (ADHD) in clinics, and analyse the risk factors for ADHD. Methods Two thousand two hundred and ninety-six children with inattention, hyperactivity or unfavourable school performance were subjected to diagnosis with DSM-Ⅳ criteria in clinics. The characteristics of family environment were investigated by self-prepared questionnaires. The risk factors for ADHD were explored by univariate analysis and noneonditioned multivariate Logistic regression analysis. Results Seven hundred and twenty children were diagnosed with ADHD. There were significant differences in family environment between children with ADHD and those without(P<0.05 or P<0.01). The risk factors for ADHD included discord between parents, parental smoking and maternal depression during pregnancy and after delivery, while older age, female, paternal higher educational background were protective factors for ADHD. Conclusion Unfavourable family environment may be associated with the prevalence of ADHD, and special attention should be paid to the family environment in the treatment of ADHD.
6.Methylenetetrahydrofolate reductase polymorphism in three nationality in Guizhou
Ting ZHANG ; Yuan XIE ; Yi LI ; Keren SHAN ; Zhizhong GUAN
Chongqing Medicine 2013;(28):3413-3415
Objective To identify the distribution feature of methylenetetrahydrofolate reductase (M T HFR) gene polymorphism of Buyi ,Dong ,Miao nationality in Guizhou .Methods The MTHFR(677 and 1 298) genotypes of Buyi ,Miao and Dong healthy indi-viduals were determined by TaqMan-MGB probe genotyping method and constructed haplotypes .Results There were significant difference of MTHFR 677C/T genotype and allele frequencies among 3 groups(P<0 .05) ,There was significant difference of geno-type between Buyi and Miao nationality ,and there were significant differences of genotype frequencies in Buyi nationality and Dong and Miao nationality(P<0 .01) .There were no differences of MTHFR 1298A/C genotype frequencies among Buyi ,Dong and Miao nationality(P> 0 .05) .Buyi nationality had the lowest frequency in double wild homozygous type (677CC/1298AA) ,677TT/1298CC double mutation homozygous and 677TT/1298AC combination in above three minorities was not found .There were linkage disequilibrium between 677C/T and 1298A/C in Buyi and Miao nationality .Conclusion The genotypes frequencies of MTHFR 677T T/1298AC are significant differences among different regions and different ethnic groups .
8.Bioequivalence of Domestic and Imported Phenazopyridine Hydrochloride Tablets in Healthy Volunteers
Mei HE ; Xiaoling ZHANG ; Shan YI ; Yan LIU
China Pharmacy 2007;0(26):-
OBJECTIVE:To study pharmacokinetics of domestic and imported Phenazopyridine hydrochloride tables and bioavailability of domestic tablets, and to evaluate the bioequivalence of two kinds of tablets. METHODS: A randomized crossover design was performed in 18 healthy male volunteers. They received a single oral dose of domestic or imported tablets 200 mg. Plasma concentration of phenazopyridine hydrochloride was measured by HPLC. The pharmacokinetic parameters were calculated by 3p97 software and relative bioavailability was evaluated. RESULTS: The plasma concentration-time curves of domestic and imported tablets conformed to one-compartment model. Main pharmacokinetic parameters of domestic tablets vs. imported tablets were as follows: t1/2Ke(3.52?2.03) h vs. (3.18?1.85)h; tmax(0.76?0.33) h vs. (0.79?0.43)h; Cmax(76.41?70.15) ng?mL-1 vs. (75.49?70.37) ng?mL-1; AUC0~8(159.10?116.32) ng?h?mL-1 vs. (164.65?129.89) ng?h?mL-1; AUC0~∞(237.12?115.06) ng?h?mL-1 vs. (262.69?155.05) ng?h?mL-1. The relative bioavailability of domestic tablets was (96.63?14.05)% compared with imported tablet. There was no significant difference between the pharmacokinetic parameters of two formulations by variance analysis, t-test and 1-2? confidence interval method. CONCLUSION: The domestic and imported tablets are bioequivalent.
9.Study on the changing status of morphological development among minority students in China, from 1985 to 2005
Jun MA ; Shan-Shan LI ; Yi SONG ; Pei-Jin HU ; Bing ZHANG
Chinese Journal of Epidemiology 2009;30(10):1034-1038
Objective To identify the changes of morphological development status on minority students in China from 1985 to 2005. Methods We selected a total of 15 groups of the Chinese minority students as subjects of the study, including Mongolian, Hui, Uygur, Zhuang, Korean, Tibetan, Yao, Li, Qiang, Buyi, Dong, Miao, Tu, Salar, Kirgiz, with data from the Chinese national survey on students' physical fitness and health condition in 1985, 1995, 2000 and 2005. Height, weight and waist of the subjects were calculated and analyzed. Results From 1985 to 2005, the growth and characteristics of height in the Chinese minority students had a similar increase when comparing to the Han students, but with different degrees. However the growth rate was gradually decreasing. The average heights of Kirgiz, Korean, Salar and Mongolian schoolboys aged 18 years old were 170 cm, being 170.91 cm, 170.47 cm, 170.29 cm and 170.27 cm, respectively, which were close to that of the Hart students. Some minority students had a substantial increase of body weight. However, the waist of some minority students decreased. Only a few groups of minority students had increasing waist, such as Mongolian and Korean rural boys, Mongolian, Zhuang, and Korean rural girls, with the growth being 0.101 cm, 0.095 cm, 0.126 cm, 0.163 cm and 0.107 cm, respectively. Uygur, Mongolian, Kirgiz and Korean students had the morphological development similar to Han urban students, especially Uighur boys and girls. Conclusion From 1985 to 2005, The height, weight and waist of Chinese minority students had an overall increase at different degrees. In order to improve the physical fitness of minority students, awareness on nutrition and health education of both students and parents should be strengthened. Surveillance and programs on growth, development and health status of the minority children and adolescents should also be carried out continuously.
10.Effects of ibuprofen on the growth and development of oligodendrocytes
Ji-Peng JIANG ; Kai YANG ; Fei ZHAO ; Shan-Shan ZHANG ; Ai-Bo PANG ; Sai ZHANG ; Xu-Yi CHEN
Tianjin Medical Journal 2018;46(5):509-514
Objective To study the effects of ibuprofen on the growth and development of oligodendrocytes. Methods A total of 6 clean and healthy adult female SD (Sprague Dawley) rats were used for extracting and culturing of oligodendrocytes(OLs).Lysophosphatidic acid(LPA)was then added,and the morphological changes of OLs pre-treatment and post-treatment were observed. Then 6 newborn rats (born 24-48 h) were used for mixed glial cell extraction from the cortex, then the OPCs were inoculated into the culture plates and randomly divided into control group, ibuprofen group, lysophosphatidic acid(LPA)group and LPA+ibuprofen group.After the adhering of the cells in each group for three days, cell morphology was observed,and the drugs were added as interventions.The control group was treated with normal saline, and the other 3 groups were added with saline solution of ibuprofen(100 μmol/L),LPA(1.0 μmol/L)and the mixture of them. The cell morphological changes were observed after 7-day intervention.The morphology of OPCs and OLs were observed by immunofluorescence staining through OPCs'specific immune markers (platelet-derived growth factor receptor alpha, PDGFR-α)and OLs'specific immune markers(myelin basic protein,MBP)along with cell count of mature OLs.Western blot assay was used to detect the relative expression level of MBP in each group. Results After the treatment with LPA to the mature OLs,protrusions were shrinking and became very sparse.The morphology of cells developed well in each group after cell adhering for 3 days. After drug intervention for 7 days, more cell protrusions and branches were observed in ibuprofen group and LPA+ibuprofen group than those of the control group and LPA group.The results of cell count showed that the number of MBP positive cells was significantly higher in the ibuprofen group and LPA+ibuprofen group than that in the control group and LPA group(P<0.01).The results of Western blot assay showed that the MBP protein expression was significantly less in LPA group than the other three groups (P<0.01), and the expression was significantly higher in the ibuprofen group than that of LPA+ibuprofen group (P<0.01). Conclusion LPA has a toxic effect on the growth and development of OPCs, and it has an inhibitory effect on the normal growth of mature OLs. A certain concentration of ibuprofen can significantly inhibit the cytotoxicity of LPA on OPCs and OLs,and promote the formation and maintenance of mature OLs.