1.Application of small incision surgery in free treatment for poverty alleviation in patients with cataract
International Eye Science 2015;(1):139-141
?AlM:To study the application of small incision surgery in free treatment for poverty alleviation in patients with cataract.?METHODS: Sixty patients (70 eyes) with high cataract with poverty free treatment from January 2010 to December 2013 in department of ophthalmology in our hospital were selected as study objects. electro cardio gram ( ECG ) and chest X - ray examination were performed. The small incision combined with intraocular lens ( lOL ) implantation operation was undergone. The patients were followed up for 3mo to observe and compare postoperative vision and diopter changes, and analyze the related complications.?RESULTS: The best visual acuity was 0. 6, while the lowest vision for hand 3mo after the operation, a total of 65 eyes ( 93%) vision was better than that before the operation: the eye axis less than 30mm ( 25. 87 ~29. 41mm) had 55 eyes, eye axis more than 30mm (30. 02~31. 47mm) had 10 eyes; and 5 eyes whose visual acuity had no significant changes.?CONCLUSlON: The small incision cataract treatment is simple, better curative effect and high safety, it is more suitable for free treatment in poverty alleviation cataract application.
2.Carotid artery stenting for carotid artery stenosis
Journal of Medical Postgraduates 2003;0(10):-
Carotid artery stenting (CAS) for treating carotid artery stenosis is a recent developed technique which is less invasive and complications. This paper reviewed the progress, procedure, and complications of carotid artery stenting.
3.Endovascular interventional therapy of carotid stenosis
International Journal of Cerebrovascular Diseases 2013;21(11):867-874
The incidence of carotid stenosis disease increases with age,and it is one of the major causes of ischemic stroke.In recent years,with the rapid development of endovascular treatment technology,the therapeutic means,including carotid angioplasty and stenting,has been widely carried out both at home and abroad.This article reviews the advances in endovascular treatment of carotid stenosis.
6.Low caveolin-1 predicts the poor outcome in patients with acute ischemic stroke
Kejin YIN ; Liqin LUAN ; Wenbin WANG ; Qin YIN
International Journal of Cerebrovascular Diseases 2016;24(8):699-703
Objective To investigate the correlation between the baseline serum caveolin-1 (Cav-1) levels and the clinical outcome in patients with acute ischemic stroke at day 90 after onset. Methods Consecutive patients with acute ischemic stroke treated in hospital were enrolled. The Cav-1 levels were measured by the enzyme-linked immunosorbent assay. Functional outcomes were assessed at day 90 after onset using the modified Rankin Scale (mRS), and mRS 0-2 was defined as good outcome. The demographic and clinical characteristics of the good outcome group and the poor outcome group were compared. Multivariate logistic regression analysis was used to identify the correlation between the low serum Cav-1 levels and the poor outcome at day 90 after onset. Results A total of 169 patients with acute ischemic stroke were included in the analysis, including 116 males (68. 5% ). Their age ranged from 50 to 83 years (mean, 63. 4 ± 9. 1). The mean serum Cav-1 level was 5. 483 ± 2. 617 ng/ml. Eighty-three-patients (49. 1% ) were in the good outcome group and 86 (50. 9% ) were in the poor outcome group. Univariate analysis showed that the proportions of patients in subcortical infarct (60. 5% vs. 43. 4% ; χ2 = 4. 944, P = 0. 026) and diffusion-weighted imaging-Alberta Stroke Program Early CT Score, (DWI-ASPECT) ≤7 (58. 1% vs. 40. 9% ; χ2 = 4. 984, P = 0. 026), as well as age (65. 5 ± 8. 9 years vs. 61. 2 ± 10. 7 years; t = 2. 793, P =0. 006), baseline systolic blood pressure level (140. 6 ± 17. 2 mmHg vs. 134. 9 ± 13. 4 mmHg; t = 2. 368, P = 0. 019; 1 mmHg = 0. 133 kPa), and National Institutes of Health Stroke Scale (NIHSS) score (4. 8 ± 3. 4 vs. 3. 9 ± 2. 2; t = 2. 211, P = 0. 036) were significantly higher than those of the good outcome group, and the serum Cav-1 level was significantly lower than that of the good outcome group (4. 9 ± 2. 3 ng/ml vs. 6. 1 ± 2. 1 ng/ml; t = 2. 977, P = 0. 003). After adjusting for the related confounding factors, multivariate logistic regression analysis showed that the low Cav-1 level was an independent predictor of poor outcome at day 90 in patients with acute ischemic stroke (odd ratio, 1. 157, 95% confidence interval 1. 016-1. 319;P = 0. 028). Conclusion The low serum Cav-1 level is an independent predictor of poor outcome in patients with acute ischemic stroke.
7.The Requirements of Medical Device Market Access in India.
Shaoyan QIN ; Tao CUI ; Haisong YIN
Chinese Journal of Medical Instrumentation 2016;40(1):61-63
This paper introduces the premarket registration procedures and the post market regulatory requirements in India. According to Indian medical device act and related medical regulations on medical device, this is a preliminary discussion on the registration management system to provide referance for foreign medical device to enter India market.
Equipment and Supplies
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economics
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standards
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India
8.Antineoplastic molecular mechanisms on bufalin
Yanyan QIU ; Qin CAO ; Peihao YIN
Journal of International Oncology 2013;(5):339-342
There is a long history of Toad venom in the treatment of cancer in China.Bufalin,extracted from Toad venom,is one of the biologically active compounds of anticancer.We elaborate the molecular mechanism of bufalin on anticancer activity from several aspects such as inducing cell apoptosis and differentiation,inhibitting cell proliferation and angiogenesis,enhancing the sensitivity of chemotherapeutics,which can provide the basis for in-depth study of Toad venom and its development and clinical medication.
9.Cloning and expression of immunotoxin DT389- hbFGF
Lian-Rong, YIN ; Jia-Qin, YUAN
International Eye Science 2007;7(1):15-18
AIM: To express the DT389-hbFGF (389 amino acid residues of the N-terminus of diphtheria toxin (human basic fibroblast growth factor) fusion protein for potential targeting therapy towards posterior capsule opacification (PCO) after cataract surgery.METHODS: The DNA of inactivated diphtheria bacillus and RNA of 12-week fetal brain cortex were extracted, respectively. The fragments of truncated diphtheria toxin (containing 389 amino acids of N-terminus, DT389) )and full-length human basic fibroblast growth factor(hbFGF) sequence (encoding 18kDa protein) were amplified by PCR. The two fragments were inserted into pGEX-4T-1 prokaryotic expression vector to obtain pGEX-DT389-hbFGF prokaryotic expression plasmid. After sequence analysis, the expressing plasmid was transformed into Escherichia Coli BL21 strain and expression was induced under IPTG. The expressed fusion protein was purified and identified.RESULTS: The gene fragments encoding DT389 and hbFGF were amplified and their gene sequences were confirmed. Hybrid gene expression plasmid pGEX-DT389 (hbFGF was constructed. The fusion protein DT389-hbFGF was expressed and purified.CONCLUSIONS: The successful cloning and expression of DT389-hbFGF immunotoxin provides a foundation for targeting therapy towards posterior capsule opacification.
10.The visual cortex plasticity of adult rat after binocular form deprivation by pattern visual evoked potential
Yao, LIU ; Tao, YU ; Zheng-qin, YIN
Chinese Journal of Experimental Ophthalmology 2011;29(12):1106-1110
Background The visual evoked potential (VEP) is an important functional index to assess visual cortex plasticity.Monocular form deprivation(MD) of rat is a classic model to study visual cortex plasticity change.Utilizing VEP technique record the shift of ocular dominance in adult rats model is of an important significance for explore the treating opportunities of amblyopia.Objective The present study was to observe the pattern VEP changes in different ages of Long-Evens rats and the adult rats after binocular form deprivation.Methods Thirty-six healthy SPF Long-Evens rats were divided into PW3,PW4,PW5,PW6 groups according to the postnatal weeks,and PW7 rats included 36 SPF Long-Evens rats.The left eye lids of the rats were sutured in PW3,PW6 and PW7 rats for 3,5,7 days respectively,and PVEP in both left and right eye were recorded to assess the rat age that visual cortex plasticity ended.Bilateral PVEP were recorded in PW7 rats,and the bilateral eyelids were sutured to establish the bilateral form deprivation models.The right eyes were opened in 7,10,14 days,and the left eyes were opened in the next 3,5,7 days respectively and the PVEPs were recorded again to find the shift of ocular dominance and whether binocular form deprivation induce the visual cortex plasticity in adult rats.Results The P100amplitudes of the left eyes were gradually declined and those of the right eyes were raised from 3 to 7 days after MD of the left eyes in rats of PW3 group in comparison with before MD ( P<0.01 ).In PW6 groups,no significant changes in P100amplitudes of both the right and left eyes were found in the third day after MD,but significant raise in the right eyes and lowing in the left eyes were seen in the 5 and 7 days after MD in comparison with before MD(P<0.01 ).No any P100changes in both eyes were found in 3-7 days after MD compared with before MD in PW7 rats (P>0.05).The C/I ratio (contralateral VEP amplitude to ipsilateral VEP amplitude in occluded eyes) in the rats of PW3,PW4 and PW5 groups were 1.07±0.15,1.16±0.16 and 1.14±0.15 respectively in 3 days after MD,showing the significant lowing in comparison with before MD (2.69±0.45,2.58±0.4,2.62±0.32) (P<0.01),but those of PW6 and PW7 were unchanged (2.80±0.48 vs 2.90±0.46,2.59 ±0.36 vs 2.90±0.46,P>0.05 ),indicating the absence of ocular dominance plasticity in the adult rats.In rats of PW7 with binocular form deprivation for 14 days,a significant decrease was observed in the C/I ratio in rats with next MD for 3 days,demonstrating that the visual cortex plasticity was reactivated after 14 days of binocular form deprivation in PW7 rats( 1.33±0.18 vs 2.70±0.45,P<0.01 ).Conclusions PVEP can be recorded in Long-Evens rats.It is a major index for identifying the shift of ocular dominance in the Long-Evens rats.Binocular form deprivation can reflect the visual cortex plasticity in the adult rats.