1.MECHANISM OF INSULIN RESISTANCE IN PATIENTS WITH IMPAIRED GLUCOSE TOLERANCE AND TYPE II DIABETES MELLITUS
Hong XIA ; Jiawei CHEN ; Jie SHEN
Chinese Journal of Endocrinology and Metabolism 1986;0(03):-
Insulin sensitivity index (SI).glucose effectiveness (SG) and insulin secretion function were assessed by modified minimal model method (MMM) with frequently sampled intravenous glucose tolerance (FSIGT) test in the controls, in patients with impaired glucose tolerance (IGT), and type II diabetes mellitus (NIDDM). There was significant correlation between modified MMM and standard MMM in evaluating SI and SG. The results indicated that SI and SG were significantly elevated in the control than in the IGT and NTDDM groups. SI diminished much more in IGT group than in NIDDM group (P
2.Long-term effect on the treatment of early chronic angle-closure glaucoma in two kinds of surgical method
Ai-Jun, SHEN ; Yong-Jie, GAO ; Yan-Hong, JIA
International Eye Science 2015;(5):895-897
?AlM: To evaluate the long - term effects of laser peripheral iridectomy ( LPl ) and trabeculectomy in treating early chronic angle-closure glaucoma.
?METHODS: Ninety-eight patients (102 eyes) with early chronic primary angle-closure glaucoma were randomly divided into two groups. Group A of 50 patients (54 eyes) was treated with LPl and group B of 48 patients (48 eyes) with trabeculectomy. After 3 - 8y of follow - up observation, comparison would be made from the perspectives of postoperative eyesight, intraocular pressure, anterior chamber angle, visual field and cup/disc ratio ( C/D) .
?RESULTS:ln group A, 24 eyes with eyesight declining, 22 eyes with theintraocular pressure>21mmHg (1mmHg=0. 133kPa), 21 eyes with chamber angle synechia >180o, 21 eyes with visual field narrowed, 21 eyes with C/D ratio enlarged. The results of group B for the same items were 10, 5, 4, 4, 4 eyes respectively. The comparative difference was statistically significant (P<0. 05).
?CONCLUSlON:Good effects will be achieved for early-stage chronic angle - closure glaucoma with surgical method. Trabeculectomy is obviously better than LPl for the long-term effects.
3.Clinical and imaging features and infarct pattern analysis in patients with middle cerebral artery stenosis and occlusion
Yong SHAO ; Jie CHANG ; Zhenfang ZHU ; Hong SHEN
Chinese Journal of Primary Medicine and Pharmacy 2011;18(19):2629-2631
ObjectiveTo evaluate the clinical and imaging features and infarct pattern in patients with middle cerebral artery(MCA) stenosis and occlusion,to clarify its infarct pathogenesis. Methods35 MCA moderate and severe stenosis or occlusion patients diagnosed by TCD were studied;the clinical and imaging features and infarct pattern were retrospectively analyzed. Results( 1 ) Clinical features :The clinical manifestations of 35 patients was hemiplegia symptoms,in which 16 cases(45.7% ) involved to the face,upper and lower limb,11 cases(31.4% ) involved to the upper and lower limb,3 cases(8.6% ) involved to the facial and upper limb,2 cases(5.7% ) involved only to the facial,2 cases(5.7% ) involved to the facial and upper limb,1 cases(2.9% ) involved only to the upper limb. (2) MRA imaging characteristics and infarct pattern: 29 cases ( 82.9% ) of patients with stenosis or occlusion showed moderate severe stenosis,6 cases( 17.1% ) showed MCA occlusion. 30 cases( 85.7% ) showed ischemic infarction,in which perforating artery infarction was the most common infarct pattern of middle cerebral artery stenosis or occlusive patients( 53.3% ) ,followed by water-shed infarct ( 26. 7) %, pial infarct was ielatively small (20. 0% ). ConclusionThe hemiplegia was the most common clinical symptoms in patients with MCA stenosis and occlusion, and mainly involves to the face,upper and lower limb;The perforating artery infarction was the most common infarct pattern,and its infarct mechanism was an artery-to-artery embolism or hemodynamic abnormalities.
4.Protective Effect of Propofol on the Peroxidative Injured Erythrocyte
Jie SHEN ; Hong ZHAO ; Li LI ; Zhenyuan QIN
Journal of China Medical University 2001;30(2):98-100
Objective: Our aim was to observe the protective effect of propofol in clinical relevant concentration on the peroxidative injured erythrocyte. Methods: Intravenous blood samples taken from 20 healthy adults were prepared for red blood cell (RBC) suspensions and divided equally into 5 groups: groupⅠfor control, group Ⅱ with hydrogen peroxide (H2O2, 100 mmol/L) -induced injury, and group Ⅲ, Ⅳ, Ⅴ with the same injury as the group Ⅱ but being pretreated with 3 different concentrations of propofol (25, 50, 75 μmol/L), respectively. The concentrations of potassium and malondialdehyde (MDA) in RBC suspensions and hemolytic degree after incubation were measured. Results: After 60-minute incubation, the extracellular potassium concentrations (0.16, 0.14, 0.14 mmol/L), MDA concentrations (5.66, 5.57, 6.20 nmol/L), and hemolytic degree (76.89%, 59.84%, 64.22%) decreased significantly in the groups that were pretreated with propofol as compared with the group Ⅱ (0.26 mmol/L, 9.19 nmol/L, and 100%), but no difference has been seen within the groups pretreated with 3 different concentrations of propofol and between the propofol-treated groups and the group Ⅰ(0.10 mmol/L, 4.13 nmol/L, 52.73%). Conclusion: Propofol in clinical relevant concentrations may decrease MDA production, hemolytic degree, and potassium exflux from erythrocyte in response to in vitro oxidative challenge with hydrogen peroxide and enhance erythrocyte antioxidant capacity. The protective effect is not related with concentrations.
5.Application of MRI in severity grading and activity staging in thyroid associated ophthalmopathy
Qingshan HONG ; Jie SHEN ; Yaoming XUE ; Yanping CHEN ; Zhichun UN
Chinese Journal of Endocrinology and Metabolism 2010;26(3):215-216
The influence of MRI on severity grading and activity staging in thyroid associated ophthalmopathy (TAO) was evaluated.The results showed that MRI had a higher detection rate in abnormal extraocular muscle than NOSPECS scores(χ~2 = 19.37,P = 0.000).MRI had higher sensitivity,specificity,and accuracy in detection of active TAO than clinical activity score (100% vs 95.7%,88.2% vs 35.3%,96.9% vs 79.7%,respectively).Therefore,MRI improves early detection of atypical grade 4 cases.Signal intensity elevation in adipose suppressed T2WI is helpful to define active stage.
6.Value of stereotactic radiosurgery in patients with multiple brain metastases
Jie CHEN ; Zhiguo LIN ; Qingguo LI ; Hong SHEN
Chinese Journal of Radiation Oncology 1992;0(04):-
Objective To analyze the prognostic factors and evaluate the effect of stereotactic radiosurgery for patients with multiple brain metastases. Methods Comparison was made in 53 such patients treated by stereotactic radiosurgery plus radiotherapy and 53 treated by radiotherapy alone. Patients were matched paired according to the following criteria: age, Karnofsky performance scale(KPS) before treatment, extent of systemic cancer and number of brain metastasis.Fourty patients had stereotactic radiosurgery, 13 patients stereotactic fractionated radiosurgery. In the stereotactic radiosurgery group, the patients were given a mean marginal dose of 20?Gy. Methods of stereotactic fractionated radiosurgery was 4 12?Gy per fraction, twice a week to a total dose of 15 30?Gy. Whole brain radiotherapy was given immediately after stereotactic radiosurgery. For patients treated by radiotherapy alone, the entire brain was treated by 30 40?Gy in 3 4 weeks. Results The median survival was 11.6 months in stereotactic radiosurgery plus radiotherapy and 6.7 months in radiotherapy alone. The one year survival rate and one year local control rate were 44.3%,17.1% and 50.9%,13.2%. Those with KPS increased after treatment gave 1 year survivals of 69.8% and 30.2%, respectively. The validity rates in CT or MRI three months after treatment were 82.0% and 55.0%.The difference in the two groups was found to be statistically significant (P
7.Discussion on research and development of new traditional Chinese medicine preparation process based on idea of QbD.
Yi FENG ; Yan-Long HONG ; Jie-Chen XIAN ; Ruo-Fei DU ; Li-Jie ZHAO ; Lan SHEN
China Journal of Chinese Materia Medica 2014;39(17):3404-3408
Traditional processes are mostly adopted in traditional Chinese medicine (TCM) preparation production and the quality of products is mostly controlled by terminal. Potential problems of the production in the process are unpredictable and is relied on experience in most cases. Therefore, it is hard to find the key points affecting the preparation process and quality control. A pattern of research and development of traditional Chinese medicine preparation process based on the idea of Quality by Design (QbD) was proposed after introducing the latest research achievement. Basic theories of micromeritics and rheology were used to characterize the physical property of TCM raw material. TCM preparation process was designed in a more scientific and rational way by studying the correlation among enhancing physical property of raw material, preparation process and product quality of preparation. So factors affecting the quality of TCM production would be found out and problems that might occur in the pilot process could be predicted. It would be a foundation for the R&D and production of TCM preparation as well as support for the "process control" of TCMIs gradually realized in the future.
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Medicine, Chinese Traditional
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8.Optimal expression condition of recombinant RAP.
Jie, ZHANG ; Hong, ZHANG ; Hao, BI ; Zhiguo, LIU ; Jianli, GUO ; Shen, QU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2007;27(1):5-8
In order to construct the expression recombinant of human receptor associated protein (RAP), optimize its expression condition and obtain the recombinant protein after expression with high efficiency, two prokaryotic expression vectors-pT7-PL and pET-28a(+) were used to construct the expression recombinant containing RAP cDNA, and the expression efficiency of two kinds of expression E. coli of BL21 strains was compared. The effect of different induction conditions on the expression of recombinant RAP was observed. After recombinant protein was purified with Ni(+) -nitrilotriacetic acid (Ni(+) -NTA) affinity chromatogram, its binding ability with microphage was observed. The results showed that two recombinant plasmids both obtained high expression of RAP. The expression levels of RAP in plasmid pT7-PL-RAP in BL21 (DE3, plysS) strain were significantly higher than in BL21 (DE3) strain. The expression of pT7-PL-RAP in the presence of chloramphenicol was higher than in the absence of chloramphenicol, and most of the inducible expressed RAP was soluble. The RAP which was purified by Ni(+) -NTA resin could strongly bind with the RAW264.7 cells rich in low density lipoprotein receptor (LDLR) family receptors. It was concluded that the expression condition of recombinant RAP was optimized and functional RAP was obtained, which offered a good foundation for the further production of RAP as research tool.
9.Retrograde gas injection under nasal endoscope combined with 5-Fluorouracil for treating lacrimal canalicular rupture
Yue, WANG ; Hua, WANG ; Yan-Yan, ZHANG ; Hong-Guang, ZHANG ; Xiao-Jie, SHEN
International Eye Science 2016;16(10):1973-1975
AIM: To evaluate the operative effect and time effectiveness of the conventional surgery versus retrograde gas injection under nasal endoscope combined 5-Fluorouracil for lacrimal canalicular rupture.
●METHODS:A total of 67 patients (67 eyes) with lower lacrimal canalicular rupture who received surgical treatment by Department of Ophthalmology in Qinhuangdao Haigang Hospital were consecutively recruited between Jan. 2009 and Dec. 2015. They were randomly divided into Group A or Group B. Group A (33 patients, 33 eyes) were treated by conventional surgery, and Group B ( 34 patients, 34 eyes ) were treated by retrograde gas injection under nasal endoscope combined 5-Fluorouracil. Time for finding out the cute end of the lower lacrimal canaliculus and postoperative effect were recorded. Comparisons between the two groups were done with lndependent sample t-test and Mann-Whitney Rank sum test.
●RESULTS: Time for finding out the cute end of the lower lacrimal canaliculus of Group A was (44. 42±10. 66) min, and the time of Group B was ( 30. 06 ± 6. 21 ) min. There was significant difference between the two groups (t=6. 72, P<0. 05). Lacrimal ducts flush was done at the 6mo after the survey, Group B had better effect than Group A, the difference between the two groups were significant (Z=2. 47,P<0. 05).
●CONCLUSION: Compared with conventional surgery, retrograde gas injection under nasal endoscope combined 5-Fluorouracil for lacrimal canalicular rupture can make the operation time shorter and has better effect.
10.Efficiency and complications of single lacrimal duct intubation versus annular lacrimal duct intubation combined with drugs injection in lacrimal duct obstruction treatment
Yue, WANG ; Yan-Yan, ZHANG ; Hong-Guang, ZHANG ; Hua, WANG ; Xiao-Jie, SHEN
International Eye Science 2017;17(6):1191-1193
AIM: To evaluate the efficiency and complications of single lacrimal duct intubation versus annular lacrimal duct intubation with 5-fluorouracil and tobramycin/dexamethasone eye ointment injection in lacrimal duct obstruction treatment.METHODS:A total of 74 patients (92 eyes) with lacrimal duct obstruction who received surgical treatment by Department of Ophthalmology in Qinhuangdao Haigang Hospital were consecutively recruited between August 2015 and September 2016.They were randomly allocated to Group A or Group B.After probing of lacrimal passage, Group A (46 eyes) were treated by using single lacrimal duct intubation.Group B (46 eyes) were treated by using annular lacrimal duct intubation combined with 5-fluorouracil and tobramycin/dexamethasone eye ointment injection.Between the two groups, Mann-Whitney Rank sum test was used to comparing the operative effect, and Chi-square test was used to comparing the occurrence of complications.RESULTS:The cure rate was 61% in Group A and 89% in Group B;the improvement rate was 22% in Group A and 4% in Group B.Group B had better effect and less complications (2 cases) than Group A (8 cases),the differences between the two groups were significantly(P<0.05).CONCLUSION: Compared with single lacrimal duct intubation, annular lacrimal duct intubation combined with 5-fluorouracil and tobramycin/dexamethasone eye ointment injection has better operative effect and less complication in lacrimal duct obstruction treatment.