1.Analysis of Relative Factors Affecting Long-term Prognosis of Visual Acuity in Diabetic Patients after Implantation of Artificial Lens
Qinjun HU ; Wengcui WANG ; Qing DENG
Journal of Chinese Physician 2001;0(06):-
Objective To investigate the relative factors affecting long-term prognosis of visual acuity in diabetic patients after implantation of artificial lens. Methods A total of 86 eyes of 86 diabetic patients with implantation of artificial lens were enrolled in this study. The gender, age, core rigidity, course of disease, preoperative levels of blood sugar and HbA1c, insulin administration, anterior chamber inflammation at the first day after operation, hypertension, and hyperlipemia were recorded. Multi-factor relation analysis of visual acuity was performed at the first month and the third year after operation, respectively. Results The postoperative visual acuity at the first week after operation was related to the preoperative level of blood sugar and HbA1c, core rigidity, anterior chamber inflammation at the first day after operation and types of operation(P
2.The study of diagnostic test of using the ten-point scale for the early fat embolism syndrome
Guoqiang YIN ; Kun HU ; Hanning MA ; Andong DU ; Qinjun JIANG
Chinese Journal of Emergency Medicine 2013;22(9):1011-1015
Objective To explore the clinical value of the ten-point scale in the early diagnosis of fat embolism syndrome.Methods The data of 129 patients with fat embolism syndrome diagnosed by Gurd criteria admitted from January 1993 to February 2012 were analyzed retrospectively.At the same time,another 97 patients with single or multiple long bone fracture and/or pelvic fracture without fat embolism admitted from July 2005 to February 2012 were enrolled as control group.Patients were excluded if they had any of the following diseases:simple brain trauma,thoracic injury,spine fracture,hemorrhagic shock and the complications of cardiopulmonary cerebral resuscitation (CPCR).The patients of two groups were comparable in respect of clinical setting.The clinical data were analyzed and scored by the ten-point scale.The x2 test were applied to statistical works.Results Among all the clinical characteristics,the incidence of increased D-dimer was the highest (74.1%) in early fat embolism syndrome,followed by the progressive decrease in hemoglobin (63.6%) and hypoxemia (57.4%),and the occurrence of dyspnea was the lowest (17.8%).The percentage of total scores over ten points in patients with fat embolism syndrome group was higher than that in those without fat embolism syndrome (x2 =202.6,P < 0.01).The sensitivity of tenpoint scale was 96.12% and the specificity was 99.8%.Conclusions Ten-point scale could be used to make early diagnosis of fat embolism syndrome,thereby reducing the occurrence of misdiagnosis and misseddiagnosis.
3.Study on computer-aided deposition manufacturing of vascular tissue engineering scaffolds at low temperature.
Yanlei LI ; Ming'en XU ; Qinjun WANG ; Meijuan YUAN ; Jinfu HU
Journal of Biomedical Engineering 2011;28(4):804-809
Since there is a clinical need for the tissue-engineered vascular graft (TEVG), fabricating the vascular scaffold individually appears to be necessary. In this work, we have developed the traditional tubular scaffold and branch vascular scaffold utilizing low-temperature deposition manufacturing (LDM) technology. Then different tubular scaffolds were fabricated by changing the processing parameters, and the morphological properties of the scaffolds were assessed. The scaffolds reproduced the structure of 3D vascular model accurately. Wall thickness of the scaffold increased with the increase of velocity ratio (V(L)/V(s)) and nozzle temperature, and both the micropore size and wall roughness were positively correlated with the nozzle temperature. However, the porosity was barely affected by the nozzle temperature. This approach, fabricating vascular scaffold with special structure and appearance features via LDM technology, is potential for the individual fabrication of vascular scaffold.
Biocompatible Materials
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chemistry
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Blood Vessel Prosthesis
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Cold Temperature
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Computer-Aided Design
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Humans
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Lactic Acid
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chemistry
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Polyesters
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Polymers
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chemistry
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Tissue Engineering
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methods
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Tissue Scaffolds
4.The role of traditional Chinese medicine characteristic lung rehabilitation for treatment of patients with chronic obstructive pulmonary disease and syndrome of lung and kidney qi deficiency at steady state
Jiabing TONG ; Qinjun YANG ; Danyang WANG ; Shijie ZENG ; Zhiqiang ZHANG ; Jian HU ; Yating GAO ; Jianchen LIANG ; Di WU ; Chen YANG ; Nianzhi ZHANG ; Zegeng LI
Chinese Journal of Integrated Traditional and Western Medicine in Intensive and Critical Care 2019;26(3):314-318
Objective To observe the clinical effect of traditional Chinese medicine (TCM) characteristic lung rehabilitation in treatment of patients with chronic obstructive pulmonary disease (COPD) and TCM syndrome of lung and kidney qi deficiency at stable period. Methods Sixty patients with stable COPD and lung and kidney qi deficiency syndrome admitted to the First Affiliated Hospital of Anhui University of Chinese Medicine from June to August 2017 were enrolled, and they were divided into routine treatment group and lung rehabilitation treatment group according to the random number table method, each group 30 cases. The routine treatment group was given Seretide (serevent/futicasone) dry powderi nhalation therapy; on the basis of therapy in the routine treatment group, the lung rehabilitation treatment group was treated with TCM characteristic lung rehabilitation technology (acupoint application + Chinese medicine ionic induction + oral administration of Chinese medicine Liuweibuqi granules, delivery at appropriate intervals); both groups were treated for 2 months. The changes of TCM syndrome score, western medicine symptom score, the times of acute exacerbation of COPD, COPD assessment test (CAT) score, lung function indexes: forced expiratory volume in one second (FEV1), FEV1/forced vital capacity (FVC) were observed before and after treatment in two groups. Results After treatment, TCM syndrome score, western medicine symptom score, CAT score, and after treatment the times of acute exacerbation of COPD in both groups were significantly lower than those before treatment, and the above indexes in the lung rehabilitation treatment group were markedly lower than those in routine treatment group [TCM syndrome score:11.93±1.80 vs. 14.27±2.88, western medicine symptom score: 14.20±2.75 vs. 11.93±4.23, CAT score: 14.87±2.60 vs. 16.23±4.39, the times of acute exacerbation of COPD (times): 0.63±0.49 vs. 0.95±0.83, all P < 0.05]. The improvement of FEV1 in the two groups was not significant; but FEV1/FVC in lung rehabilitation treatment group was obviously higher than that before treatment, FEV1/FVC in lung rehabilitation treatment group was significantly higher than that in the routine treatment group [(57.93±7.27)% vs. (52.49±6.61)%, P < 0.05]. Conclusion The application of TCM characteristic lung rehabilitation in the treatment of COPD patients with stable lung and kidney qi deficiency syndrome based on bronchodilators and glucocorticoids can reduce the number of acute exacerbation, improve the patients' clinical symptoms and living quality, but the improvement of lung function is not significant.
5.Intravenous route to choroidal neovascularization by macrophage-disguised nanocarriers for mTOR modulation.
Weiyi XIA ; Chao LI ; Qinjun CHEN ; Jiancheng HUANG ; Zhenhao ZHAO ; Peixin LIU ; Kai XU ; Lei LI ; Fangyuan HU ; Shujie ZHANG ; Tao SUN ; Chen JIANG ; Chen ZHAO
Acta Pharmaceutica Sinica B 2022;12(5):2506-2521
Retinal pigment epithelial (RPE) is primarily impaired in age-related macular degeneration (AMD), leading to progressive loss of photoreceptors and sometimes choroidal neovascularization (CNV). mTOR has been proposed as a promising therapeutic target, while the usage of its specific inhibitor, rapamycin, was greatly limited. To mediate the mTOR pathway in the retina by a noninvasive approach, we developed novel biomimetic nanocomplexes where rapamycin-loaded nanoparticles were coated with cell membrane derived from macrophages (termed as MRaNPs). Taking advantage of the macrophage-inherited property, intravenous injection of MRaNPs exhibited significantly enhanced accumulation in the CNV lesions, thereby increasing the local concentration of rapamycin. Consequently, MRaNPs effectively downregulated the mTOR pathway and attenuate angiogenesis in the eye. Particularly, MRaNPs also efficiently activated autophagy in the RPE, which was acknowledged to rescue RPE in response to deleterious stimuli. Overall, we design and prepare macrophage-disguised rapamycin nanocarriers and demonstrate the therapeutic advantages of employing biomimetic cell membrane materials for treatment of AMD.