1.Expression changes of Tau protein in retinal ganglion cells and oligodendrocytes following axonal injury in rats
Zhaohui HE ; Xiaochuan SUN ; Feng LI ; Long JIANG ; Luping ZHENG
Chinese Journal of Trauma 2009;25(7):587-591
Objective To investigate expression changes of Tau protein in retinal ganglion cells (RGCs) and oligodendrocytes (Ols) after stretch injury in rats and explore the relationship of Tau protein with pathological changes after axonal injury. Methods Morphological changes of optic nerves, RGCs and OLs after stretch injury were examined under light microscope in control group, stretch only group, heat stress only group and heat stress pretreatment plus stretch group. The expressions of Tau protein in RGCs and OLs after heat stress and/or stretch injury were observed by using immunohistechemical stai-ning. Results Pathological changes of axons, RGCs and OLs were identified morphologically or quan-titatively after stretch injury to the optic nerves, which was significantly ameliorated through pretreatment with heat stress plus stretch injury. The expressions of Tau protein in RGCs and OLs were increased in stretch only group. There was no significant expression change of Tau protein in heat stress only group. Expression of Tan protein was obviously decreased in heat stress pretreatment plus stretch group. Con-clusions Both neurons and glial cells are involved in pathological process after axonal injury. The ex-pression changes of Tau protein are probably related to delayed axotomy and neuron apoptosis. Heat stress can relieve the impairment of cystoskeleton through decreasing and delaying the expression of Tau protein.
2.Experimental study on the effect of Jiawei Siwu Decoction on thrombocytopenia purpura in mice
Xiaoyan FENG ; Hong GU ; Changfu YANG ; Jiannan SHI ; Luping YAN
Chongqing Medicine 2014;(15):1886-1888
Objective To observe the effect of Jiawei Siwu Decoction for idiopathic thrombocytopenic purpura (ITP) on the effi‐cacy and immune aspects of the model mice .Methods We used guinea pig anti mouse platelet serum immune IT P model ,then con‐duct the corresponding drug treatment .The mice were observed in peripheral blood ,bone marrow changes of nuclear cell count ,ser‐um IL‐6 content and changes in the spleen index .Results Compared with the model group of physiological saline of peripheral blood WBC ,prednisone group and Chinese medicine group PLT count ,bone marrow nucleated cell counts were significantly elevated (P<0 .01) ,the content of IL‐6 in serum were increased significantly (P<0 .01) ,no difference between the two treatment groups . Thymus and spleen index increased too (P<0 .05) .Conclusion Jiawei Siwu Decoction may be related to the regulation of cellular immunity ,increased serum IL‐6 content ,improve bone marrow hematopoietic microenvironment to achieve therapeutic effects in the ITP mice .
3.Effect of Attention Training on Post-stroke Cognitive Impairment
Xiaoxia DU ; Hong FENG ; Junli HE ; Yan LIU ; Pingmei YANG ; Luping SONG ; Tong ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2011;17(3):212-214
ObjectiveTo observe the effects of attention training with conventional cognitive training on cognitive impairment after stroke. Methods52 cases with cognition dysfunction after stroke were divided into the attention training group and conventional cognitive training group. They were assessed with Basic Cognitive Ability Test, Mini Mental State Examination (MMSE), Barthel Index, and National Institutes of Health Stroke Scale (NIHSS) before and 8 weeks after training. ResultsAll the patients improved their cognitive function after training, but the attention training group improved more in the digit span test, two-word recognition, and MMSE score than the conventional cognitive training group. ConclusionAttention training is a useful way to improve cognitive function in patients after stroke.
4.Multimodal analgesia in patients with hepatocellular carcinoma who underwent transarterial chemoembolization (TACE): a randomized comparative study
Yuefeng RAO ; Luping ZHAO ; Rongrong WANG ; Xuejiao GUO ; Tanyang ZHOU ; Liming CHEN ; Sheng YAN ; Junhui SUN ; Xiaoyang LU ; Zhiying FENG
Chinese Journal of Hepatobiliary Surgery 2017;23(6):375-379
Objective To study multimodal analgesia in patients who underwent transarterial chemoembolization (TACE) for hepatocellular carcinoma (HCC).Methods 60 patients who underwent TACE for HCC from Aug.2016 to Nov.2016 were randomized into two groups:the multimodal analgesia group and the control group.The pain scores of these two groups of patient during the procedure and at different posttreatment time points,and the rates of adverse effect and pharmacoeconomic differences were recorded.Results When compared to the control group,the pain scores at 0 h,2 h,4 h,6 h,12 h after treatment in the multimodal analgesia group were significantly lower (P < 0.05),and the satisfactory scores for the patients were significantly improved (96.6% vs.66.7%).The multimodal group of patients also had significandy lower adverse effect rates of nausea and vomiting,and it was more cost-effective.Conclusions Patients who required multimodal analgesia had better pain relieve,patient satisfaction and less adverse reactions after TACE than patients in the control group.Multimodal analgesia was a safe,effective and economic way to control TACE pain and it was worth recommended in clinical practice.
5.Distribution and drug resistant status of bacterium extended spectrum beta lactamases in sputum samples from patients with lower respiratory tract infection
Shirong LUO ; Weidong TANG ; Xubin TAN ; Tao FENG ; Luping YANG ; Li ZHOU
International Journal of Laboratory Medicine 2017;38(20):2835-2836,2839
Objective To study the distribution of bacterium extended spectrum beta lactamases (ESBLs) in sputum samples from patients with lower respiratory tract infection in Panzhihua Hospital of Integrated Traditional Chinese and Western Medicine . Methods A total of 512 strains of gram negative bacterium were isolated from sputum samples of patients with lower respiratory tract infection from January 2014to January 2016 ,standard disk diffusion method was used to detected ESBLs ,drug sensitivity was performed by K-B disk diffusion method .Distribution and drug resistant status of ESBLs bacterium were analyzed .Results Detec-tion rate of ESBLs bacteriumin cadre ward and ICU were higher than that in department of respiration ,and the difference was sta-tistical significant(P< 0 .01) .Among ESBLs bacterium isolated from department of respiration ,Escherichia coli accounted for 37 .5% ,Enterobacter cloacae accounted for 25 .8% .Among ESBLs bacterium isolated from cadre ward ,Escherichia coli accounted for 58 .2% ,Enterobacter cloacae accounted for 45 .5% .The resistant rate of gram negative bacterium producing ESBLs to trime-thoprim was lowest .Conclusion It′s important to understand the distribution and drug resistant status of gram negative bacterium , so as to provide the basis for rational use of antibiotics .
6.Application of hysteroscopy in female fertility preservation.
Journal of Central South University(Medical Sciences) 2022;47(11):1472-1478
Under the background of the trend in late marriage and the relaxation of family planning policy, the reproductive behavior of women has changed and the proportion of elderly pregnant women has increased progressively year by year. Thus the female fertility preservation is particularly important. As the cradle of life, uterine malformation and uterine cavity diseases may have adverse effects on embryo implantation and development. Several common intrauterine diseases, such as uterine submucosal fibroids, endometrial polyps, intrauterine adhesions, uterine malformation, cesarean scar diverticulum, and embryo residues, may affect female fertility. Hysteroscopy is the gold standard for the diagnosis and treatment for intrauterine diseases. With the progress in science and technology, the refinement of hysteroscopy instruments and the promotion of transvaginal endoscopic technology, hysteroscopy will yield brilliant results in female fertility preservation. The knowledge and training related to hysteroscopy should be continuously promoted and popularized, so that it can be mastered by more clinicians and applied in clinical practice to benefit more female patients.
Pregnancy
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Female
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Humans
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Aged
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Fertility Preservation
7.Genetic analysis of neonatal glucose-6-phosphate dehydrogenase deficiency in Guangxi Zhuang Autonomous Region
Shihan FENG ; Limei HUANG ; Tingting JIANG ; Luping OUYANG ; Qi YANG ; Guoxing GENG
Chinese Journal of Endemiology 2021;40(11):927-931
Objective:To study the incidence of glucose-6-phosphate dehydrogenase (G6PD) deficiency and the gene carrying status of newborns in Guangxi Zhuang Autonomous Region (Guangxi for short), so as to provide theoretical basis for clinical genetic counseling and accurate diagnosis.Methods:A total of 63 606 newborns who underwent G6PD screening in Guangxi Neonatal Disease Screening Center from January 2017 to December 2018 were selected as study subjects; heel blood was collected to prepare dry blood spots. Fluorescence quantitative analysis was used in the preliminary screening, and the newborns with positive preliminary screening were recalled by telephone; further diagnosis was carried out via the G6PD/6-phosphogluconate dehydrogenase (6PGD) ratio method and genetic testing, the diagnosis rate of the two methods of newborns with positive preliminary screening were compared and analyzed, and genetic mutation testing was conducted.Results:Among 63 606 newborns who underwent G6PD preliminary screening, 4 267 newborns with G6PD positive were detected, and the positive rate of preliminary screening was 6.7%. Among them, the positive rates of preliminary screening of males and females were 10.3% (3 508/33 988) and 2.6% (759/29 618), respectively. The positive rate of preliminary screening of males was significantly higher than that of females ( P < 0.01). A comparative analysis of 777 newborns (519 males and 258 females) that underwent G6PD/6PGD ratio method and genetic testing at the same time as the recall showed that the diagnosis rate of the two methods for male newborns was the same, both of which were 95.6% (496/519). Among female newborns, 168 and 236 confirmed cases were detected by G6PD/6PGD ratio method and genetic testing, respectively, and the diagnosis rates were 65.1% (168/258) and 91.5% (236/258), respectively. The results of genetic mutation testing showed that the five common genotypes in Guangxi were c.1388 G>A, c.1376 G>T, c.95 A>G, c.871 G>A, and c.1024 C>T, respectively. Conclusions:The positive rate of G6PD preliminary screening of newborns in Guangxi is relatively high. It is recommended that G6PD/6PGD ratio method and genetic testing should be performed at the same time for diagnosis of female newborns with positive preliminary screening to avoid missed diagnosis and misdiagnosis.
8.Construction and Clinical Application of Chinese Semantic Battery
Huiyan FENG ; Luping SONG ; Zaizhuang HAN ; Yanchao BI
Chinese Journal of Rehabilitation Theory and Practice 2014;(3):255-258
Objective To construct the Chinese Semantic Battery and evaluate the significance of clinical application. Methods 45 normal subjects and 100 patients with brain damage finished the Chinese Semantic Battery, including Oral Picture Naming, Picture Pyramids and Palm Trees Test, Word Pyramids and Palm Trees Test, Word Picture Verification and Word Reading. The scores of normal subjects were as norms, and the sensibility, specificity, and Youden's index of the patients were calculated. Results The sensitivity of the battery was 0.96,and the sensitivity of each task was 0.78, 0.68, 0.66, 0.72 and 0.64, respectively. The specificity was 0.96, 0.96, 0.98, 0.96 and 1.00, respectively.Youden's index was 0.60, 0.46, 0.42, 0.39 and 0.50, respectively. Conclusion The validity of norms of Chinese Semantic Battery is acceptable for semantic impairments and can be applied to clinical diagnoses and scientific researches.
9. Rapid detection of variola virus by revolution transcription loop mediated isothermal amplification method
Longfei FENG ; Bing DU ; Yingjie HUANG ; Yang CAO ; Luping CHEN ; Xinhong LIANG ; Huan LI ; Jing YUAN
Chinese Journal of Experimental and Clinical Virology 2019;33(3):314-318
Objective:
To establish the loop-mediated isothermal amplification (LAMP) method for detection of variola virus.
Methods:
One set of primers were designed for recognizing 5 distinct sequences on variola virus-specific gene HA. To optimize the reaction temperature and primers screening, and the sensitivity and specificity of this method for variola virus (VARV) detection were evaluated.
Results:
Rapid detection of variola virus by LAMP assay was completed within 60 min at 63 ℃. The sensitivity of LAMP with detection limits of 1 pg/μl was 10 times higher than that of PCR, that is, the LAMP sensitivity was 3.37×105 copies/μl, and the PCR sensitivity was 3.37×106 copies/μl. and the result of 2 kinds of other virus were negative, showing that it had a good specificity.
Conclusions
The method reported here demonstrates a potential and valuable means for detection of VARV. The LAMP assay is suitable for wide-area sample screening and on-site detection of variola virus in grassroots units, for on-site and primary quarantine, medical units for rapid diagnosis.
10.Advances and Applications in Animal Models of Neuroblastoma
Zhigang TAN ; Jinxin LIU ; Chuya ZHENG ; Wenfeng LIAO ; Luping FENG ; Hongli PENG ; Xiu YAN ; Zhenjian ZHUO
Laboratory Animal and Comparative Medicine 2023;43(3):288-296
Neuroblastoma (NB) is one of the most common malignant solid tumors in children, ranks fourth in the incidence of pediatric tumors, and accounts for 15% of pediatric tumor deaths in children in China. Despite the development of new treatment options, the prognosis for high-risk patients is still poor. An animal model that can replicate the tumorigenesis of NB is an important tool for the prevention and treatment of NB. However, there are currently no animal models that can simulate all features of human NB. To provide a reference for the construction of animal models and treatment of NB, this article introduced several animal models of NB that have been extensively researched: the mouse, chick embryo chorioallantoic membrane, and zebrafish models. At the same time, it elaborated on the species, construction methods, characteristics, advantages and disadvantages, and research progress in NB.