1.Safety and clinical application of induced pluripotent stem cells
Chinese Journal of Tissue Engineering Research 2013;(27):5087-5093
BACKGROUND: Induced pluripotent stem cells are obtained from somatic cells by reprogramming method. The safety of induced pluripotent stem cells has attracted much attention because of their huge and potential value in clinical application. OBJECTIVE: To review the current studies addressing the safety and clinical application of induced pluripotent stem cells. METHODS: The PubMed database between 2006 and 2012 was retrieved by the first author to search the correlative documents concerning the safety and clinical application of induced pluripotent stem cells. Total y 203 papers were primarily gotten. Final y, 47 papers were included. RESULTS AND CONCLUSION: At present, the main methods to enhance the safety of induced pluripotent stem cells include avoiding usage of c-Myc gene, another mediate way replacing the retrovirus, direct leading of reprogramming factor protein, safer donor cells, micromolecule compound and other in-transgenosis ways. Induced pluripotent stem cells have extensive clinic treatment prospects, and can be used for the build of disease-specific induced pluripotent stem cells line.
2.The ralation Ship of SARS patients' rights and public interests
Chinese Medical Ethics 1994;0(05):-
Some of the SARS patients' rights( such as self-determination, privacy, personal freedom and body eminent domain) and social commonweal principle conflict, which restricts a SARS patient's rights. Meanwhile the SARS patients must carry out their obligations to safeguard public interests. It's revealed from one aspect that the public not only pay attention to the patients' legal rights and interests but also understand the patients' rights and obligations are relative and flexible.
3.Progress in research of preparation methods of super paramagnetic iron oxide and the application in cell marking
Yue GUO ; Xiulan LI ; Yang ZHANG
International Journal of Biomedical Engineering 2013;36(3):172-175
Cell transplantation has great potentials in repairing damaged tissue.If we want to use the cell transplants to treat diseases that respond poorly to the conventional treatment,or provide better treatments,in vivo dynamic tracking is particularly important.The application of superparamagnetic iron oxide (SPIO) improves a common inconvenience of the current invasive tests including immunohistochemical study or transmission electron microscopy (TEM) study and so on.Researchers has established a variety of preparation methods of the particles,groped the optimal condition of cell marking.SPIO were proved to be feasible and superior in cell tracking in vivo through animal experiments.The results provide the reliable means of using SPIO to track cell in clinical treatments.This review gives a summary of the related study.
4.Clinical and experimental studies of pathological synkinesia
Zhong REN ; Xiulan MA ; Yang SHI
Chinese Journal of Physical Medicine and Rehabilitation 2001;23(1):38-40
Objective The clinical manifestations and mechanism of pathological synkinesia were studied. Methods Recurrent pathological synkinesia was measured by clinical and experimental nictitation reflex. The changes of nerve-muscle junctions were observed via scanning electron microscope. Results All the 32 cases of pathological synkinesia were denervation of degree Ⅲ and severe facial palsy. Reaction undulatory forms of musculus orbicularis oculi and musculus orbicularis oris recorded simultaneously at the stimulated side in trigemial-facial nerve reflex test accounted for 81%(28/32) patients and 89% guinea pigs. Conclusion Pathological synkinesia was the marker of severe facial palsy and was related with over-error in regeneration of nerve.
5.Antiangiogenesis effect study of anticancer active fraction for two kinds of chinese herbal medicine
Cancer Research and Clinic 2006;0(07):-
Objective To study the antiangiogenesis effect of active components T3 and M2 from single Chinese herbal medicine No.6 and No.10 with invigorating the circulation of blood in Chinese medicine theory. Methods human vascular endothelial cell (EC) was cultivated in vitro, the MTT assay and CAM experiment were carried out. Results T3 and M2 showed very significant inhibitory effect on EC (P
6.Clinical application of insulin pump in treatment of diabetic ketoaciduria
Jianming YANG ; Xiulan ZOU ; Ping YU
Chinese Journal of Postgraduates of Medicine 2006;0(09):-
Objective To evaluate the difference of efficacy between continuous subcutaneous insulin infusion(CSII)and continuous intravenous insulin infusion(CVII)with human insulin in patients with diabetic ketoaciduria or ketoacidosis(DKA). Methods 120 patients with DKA were randomized into two groups,one was CSII group by a portable insulin pump(60 cases),the other was CVII group(60 cases).Results Both of CSII and CVII were effective in controlling blood glucose levels.CSII therapy provided better glycemic control(P
7.Clinical analysis of neurophthalmological features in patients with intracranial vascular malformation
Juan, DENG ; Tingting, YANG ; Xiulan, ZHANG
Chinese Journal of Experimental Ophthalmology 2014;32(10):906-909
Background Intracranial vascular malformation causes different neurophthalmological symptoms and signs due to oppressing visual-related tissue and cranial nerves after hemorrhage.However,there is no availably systematic clinical research on this disease up to now.Objective This retrospective cases analysis was to explore the neurophthalmological features of intracranial vascular malformation.Methods The clinical datas were collected from 100 cases with intracranial vascular malformation in Affiliated Third Hospital of Sun Yat-sen University from June,2007 to June,2013.The neurophthalmological clinical features including general condition,initial symptom,concomitant symptoms and image results were retrospectively surveyed.Results Neurophthalmological symptoms and signs were found in 20 patients with intracranial vascular malformation by CT and MRI with the detectability 20% (20/100).The main neurophthalmological symptoms were visual field defect (50%,10/20) and vision loss (45%,9/20).The neurophthalmological signs were pupil abnormalities (35%,7/20).Other neurophthalmological features included optic nerve atrophy (5 %,1/20),papilloedema (5 %,1/20) and oculomotor nerve palsy (5 %,1/20),etc.The relevant cranial diseases included cerebral arteriovenous malformation in 60% patients (12/20),cavernous angiomas in 35% (7/20) and venous malformation with cavernous angiomas (1/20).The lesions of cerebral arteriovenous malformation were located in occipital lobe (4 cases),parietal-occipital area (3 cases),temporal lobe (3 cases) and frontal lobe (1 case),midbrain area (1 case) ; while those of cavernous angiomas were located in parietal lobe (1 case),occipital lobe (1 case),gyrus cingulated area occipital lobe (1 case),carvenous sinus (1 case),temporal lobe (1 case),parietal-temporal area (1 case) and pons area (1 case).Intracranial hemorrhage occurred in 14 patients in subarachnoid space (6 cases) and brain (8 cases).Conclusions The patients with intracranial vascular malformation have different neurophthalmological symptoms and signs.Sufficient attention should be paid to the patients with neurophthalmological symptoms and signs.
8.Sheng Ji Ointment Affect Migration Inhibition of Mice Macrophages
Shuyun WANG ; Xiulan LI ; Baoshu YANG
Chinese Journal of Immunology 1986;0(04):-
This paper reported activation of mice peritoneal macrophages by Sheng Ji Ointment (a Chinese traditional ointment for external application) were markedly inhibited from migrating out of capillary tubes by Sheng Ji Ointment. The source of Elephantine hide(象皮)is in short supply. Whether we Can use Cattlehide (牛皮)instead of the Elephatine hide for the Sheng Ji Ointment,the migrating inhibited effects of both are similar. The experimental results may throw some light on their clinical application.
9.Left ventricular regional systolic function in patient with hypertrophic cardiomyopathy by quantitative tissue velocity imaging.
Xiulan, LI ; Youbin, DENG ; Haoyi, YANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2006;26(1):153-6
The left ventricular regional systolic functions in patients with hypertrophic cardiomyopathy (HCM) were assessed by using quantitative tissue velocity imaging (QTVI). Left ventricular (LV) regional myocardial velocity along long- and short-axis in 31 HCM patients and 20 healthy subjects were analyzed by QTVI, and the regional myocardial systolic peak velocities (MVS) were measured. Mean MVS at each level including mitral annular, basal, middle and apical segments were calculated. The ratio of MVS along long-axis to that along short-axis (Ri) at basal and middle segments of the LV posterior wall and ventricular septum were calculated. The results showed that mean MVS was slower at each level including mitral annular, basal, middle and apical segments in the HCM patients than that in the healthy subjects (P < 0.01). There were no significant differences in mean MVS between obstructive and non-obstructive groups in HCM patients. MVS of all regional myocardial segments along long-axis in the HCM patients were significantly slower than that in the healthy subjects (P < 0.05), but there was no significant difference in MVS of all regional myocardial segments along long-axis between hypertrophied and non-hypertrophied group in the HCM patients. Ri was significantly lower in the HCM patients than that in the healthy subjects. The LV regional myocardial contractility along long-axis was impaired not only in the hypertrophied wall but also in the non-hypertrophied one in patients with HCM, suggesting that QTVI can assess accurately LV regional systolic function in patient with HCM and provides a novel means for an early diagnosis before and independent of hypertrophy.
Cardiomyopathy, Hypertrophic/*physiopathology
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Cardiomyopathy, Hypertrophic/ultrasonography
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*Echocardiography, Doppler/methods
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Ventricular Function, Left/*physiology
10.The value of ~(99m)Tc-MIBI scintimammography and breast X-ray in the diagnosis of breast cancer
Xuewei YANG ; Weiliang YANG ; Xiulan WANG ; Gang JIN ; Kefei WU
Chinese Journal of General Surgery 2000;0(11):-
Objective To evaluate the practical value of 99m Tc-MIBI scintimammography and breast X-ray in the detection of breast cancer. Methods 100 female patients with 106 suspected focuses of breast cancer on clinical examination underwent 99m Tc-MIBI scintimammography and breast molybdenum target X-ray, and the results were compared with the pathological diagnosis. Results Compared with the histopathologic diagnosis , the sensitivity of molybdenum target X-ray for detecting primary breast cancer was 44.6% and the positive predictability was 31.7%. The specificity of 99m Tc-MIBI was 87.8% and the positive predictability was 76.9%. Conclusions In comparison with breast X-ray, 99m Tc-MIBI scintimammography is of greater clinical value in the diagnosis of breast cancer.