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10 results on '"Tang, Xiangchen"'

5. Speciation distribution and risk assessment of Hg and As in sediment of Lake Caohai wetlands under different water level gradients, Guizhou Province

Author

Xia PinHua, Plateau Wetland, Ma Li, Yang Yu, Huang Xianfei, Tang Xiangchen, and Lin Tao

Subjects
Hydrology, geography, geography.geographical_feature_category, business.industry, media_common.quotation_subject, Sediment, Distribution (economics), Wetland, Aquatic Science, Pollution, Water level, Speciation, Earth and Planetary Sciences (miscellaneous), Environmental science, business, Risk assessment, Water Science and Technology, media_common
Published
2020
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6. Algae composition and accumulation characteristics of heavy metals in epiphytic bioflioms of submerged macrophytes

Author

Song Xu, Plateau Wetland Ecology, Ma Li, Lin Tao, Tang Xiangchen, Yang Yu, Xia Pinhua, and Yan Dingbo

Subjects
Algae, biology, Environmental chemistry, Earth and Planetary Sciences (miscellaneous), Environmental science, Heavy metals, Composition (visual arts), Epiphyte, Aquatic Science, biology.organism_classification, Pollution, Water Science and Technology, Macrophyte
Published
2019
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8. Capsular Outcomes After Pediatric Cataract Surgery Without Intraocular Lens Implantation

Author

Tan, Xuhua, Lin, Haotian, Lin, Zhuoling, Chen, Jingjing, Tang, Xiangchen, Luo, Lixia, Chen, Weirong, and Liu, Yizhi

Subjects
Male, Cross-Sectional Studies, Treatment Outcome, Lens Capsule, Crystalline, Observational Study, Humans, Infant, Female, Aphakia, Postcataract, Cataract Extraction, Research Article
Abstract

The objective of this study was to investigate capsular outcomes 12 months after pediatric cataract surgery without intraocular lens implantation via qualitative classification and quantitative measurement. This study is a cross-sectional study that was approved by the institutional review board of Zhongshan Ophthalmic Center of Sun Yat-sen University in Guangzhou, China. Digital coaxial retro-illumination photographs of 329 aphakic pediatric eyes were obtained 12 months after pediatric cataract surgery without intraocular lens implantation. Capsule digital coaxial retro-illumination photographs were divided as follows: anterior capsule opening area (ACOA), posterior capsule opening area (PCOA), and posterior capsule opening opacity (PCOO). Capsular outcomes were qualitatively classified into 3 types based on the PCOO: Type I—capsule with mild opacification but no invasion into the capsule opening; Type II—capsule with moderate opacification accompanied by contraction of the ACOA and invasion to the occluding part of the PCOA; and Type III—capsule with severe opacification accompanied by total occlusion of the PCOA. Software was developed to quantitatively measure the ACOA, PCOA, and PCOO using standardized DCRPs. The relationships between the accurate intraoperative anterior and posterior capsulorhexis sizes and the qualitative capsular types were statistically analyzed. The DCRPs of 315 aphakic eyes (95.8%) of 191 children were included. Capsular outcomes were classified into 3 types: Type I—120 eyes (38.1%); Type II—157 eyes (49.8%); Type III—38 eyes (12.1%). The scores of the capsular outcomes were negatively correlated with intraoperative anterior capsulorhexis size (R = −0.572, P

Published
2016

10. [An in vivo study of basic fibroblast growth factor on activation and proliferation of retinal progenitor cell in RCS rats].

Author

Xia X, Song G, Liu X, Tang X, and Ye H

Subjects
Animals, Immunohistochemistry, Rats, Retina, Stem Cells, Vitreous Body metabolism, Fibroblast Growth Factor 2, Retinal Degeneration
Abstract

Purpose: To investigate the effect of intravitreal basic fibroblast growth factor(bFGF) on activation and proliferation of endogenous retinal progenitor cells in the Royal College of Surgeons(RCS) rats., Methods: Twenty-four rats were studied after the 30th postnatal day(≥30). Eighteen affected rats were randomly divided into 3 groups: bFGF-treated, vehicle-treated and untreated group, and 6 unaffected rats were used as normal controls. Six μl of bFGF (5μg/10 μl) or vehicle was injected into the vitreous on days 31, 33 and 35 after birth (P31, P33, P35) in the bFGF group and vehicle group, and no injection was administered in the untreated and control groups. All the rats were euthanized, and their eyes were enucleated, hemisected and fixed at 50 d after birth for immunohistochemistry and measurement of outer nuclear layer thickness., Results: Nestin and Chx10 were positively expressed in all retinal layers, intravitreous injection of bFGF in retina-dystrophic RCS(RCS-p+/Lav) rats induced intense labeling for the retinal progenitor cell markers Chx10 and Nestin, which were highly colocalized. Fluorescence intensity for both labels was slightly less in the control rats, and much less in the vehicle-injected rats as well as in the untreated RCS rats. The outer nuclear layer (ONL) was significantly thicker in bFGF group than that of vehicle-treated or untreated group(p<0.01), but thinner than that of the control group(p<0.01). No significant difference was observed in the ONL thicknesses between the vehicle group and untreated group(P>0.05)., Conclusion: bFGF may contribute to the activation of retinal progenitor cells in RCS rats, thus counteract degeneration by promoting the proliferation of the progenitor cells.

Published
2010
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