1.Progress of the syndrome of malignant migrating partial seizures in infancy
International Journal of Pediatrics 2013;40(6):592-595
The syndrome of malignant migrating partial seizures in infancy (MMPSI) is one of the most severe epileptic encephalopathies of infancy onset.It has been firstly reported by Coppola in 1995.There have been approximately 80 cases reported worldwide by now,but there is no case reported in our country.The etiology for MMPSI is still unknown,the diagnosis is difficult,and conventional antiepileptic drugs have little efficacy.This paper reviews the possible causes,clinical characteristics,diagnosis and treatment of MMPSI.
2.A simple and repeatable orthotopic model of the A549 cell line in nude mice
Chinese Journal of Clinical Pharmacology and Therapeutics 2006;11(10):1102-1105
AIM: To establish a simple and repeatable orthotopic animal model of the A549 cell line.METHODS: A549 cells in matrigel were inoculated into left lung or right flank of nude mouse. The growth pattern of A549 tumors and the chemotherapeutic efficacy of carboplatinum were studied. RESULTS: Tumors generated and dispersed widespreadly to contralateral lung. Tumors in lung were less susceptible to carboplatinum than those growing in flank. CONCLUSION: A simple and repeatable orthotopic animal model of the A549 cell line was presented, this allows researchers to evaluate novel compounds and new drugs for treatment of human lung cancer.KEY WORDS A549 cell line; orthotopic model; nude mice
3.Determination of imperatorin and isoimperatorin in Tongketing Capsules by HPLC
Kai MA ; Wenjie QIN ;
Chinese Traditional Patent Medicine 1992;0(10):-
Objective: To establish the determination of imperatorin and isoimperatorin in Tongketing Capsule (Radix Angelicae Dahuricae, Pheretima, etc.) by HPLC. Methods: The determination was carried out by HPLC. The mobile phase was acetonitrile water (60∶40) and UV detection wavelength was set at 245nm . The flow rate was 1.0mL?min -1 . The column temperature was 40℃ . Results: There were the good linear relationship between the absorption area value and the concentration in the range of 65?g~325?g for imperatorin and in the range of 50?g~250?g for isoimperatorin, respectively. The average recoveries were 98.3% ( RSD = 1.73% ) and 98.7% ( RSD = 1.65% ), respectively. Conclusion: The method is simple, accurate and can be used to determine imperatorin and isoimperatorin in Tongketing Capsule.
4.Research progress of Ghrelin and obesity,insulin resistance and type 2 diabetes mellitus
Chinese Journal of Diabetes 2017;25(7):666-669
Ghrelin is a small active peptide secreted by gastric fundus cell. As an endogenous ligand of growth hormone receptor,it helps to promote growth hormone secretion,increase food intake and participate in energy metabolism. Recently,studies have indicated that Ghrelin,together with other peripheral signals,participate in the regulation of glucose and lipid metabolism. Insulin resistance (IR) is an important pathophysiological basis of the development of type 2 diabetes mellitus (T2DM),while obesity is the common risk factor of both IR and T2DM. It has been confirmed that Ghrelin has a close and complex connection with obesity and T2DM. Further study about Ghrelin may open up a new way to the diagnosis and treatment of obesity and T2DM.
6.Chinese medical syndromes of rheumatoid arthritis: a clinical literature study.
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(3):279-283
OBJECTIVETo explore the distribution features of Chinese medical syndromes of rheumatoid arthritis (RA) by literature retrieval.
METHODSPertinent articles on treating RA by syndrome differentiation were retrieved from China National Knowledge Infrastructure Databases (CNKI), VIP Chinese Biomedical Journal Database, Guizhou Digital Library, and Duxiu Chinese Academic Periodicals full papers database from January 2000 to December 2011.
RESULTSA total of 33 documents were recruited covering 4 233 cases. Damp-heat blocking collaterals syndrome occupied the top in the occurrence frequency (20 times, 60.61%), followed by deficiency of Gan and Shen syndrome (18 times, 54.55%), intermingled phlegm and blood-stasis syndrome (17 times, 51.52%), wind-cold-damp impediment syndrome (15 times, 45.45%), cold-damp blocking collaterals syndrome (14 times, 42.42%), wind-damp-heat impediment and deficiency of qi and blood syndrome (10 times, 30.30%), and intermingled cold and heat syndrome (9 times, 27.27%). According to the case number of patients, it was sequenced as damp-heat blocking collaterals syndrome syndrome (768 cases, 18.14%), wind-damp-heat impediment syndrome(666 cases, 15.73%), wind-cold-damp impediment syndrome(584 cases, 13.80%), cold-damp blocking collaterals syndrome syndrome (517 cases, 12.21%), intermingled cold and heat syndrome (415 cases, 9.80%), intermingled phlegm and blood-stasis syndrome (364 cases, 8.60%), deficiency of Gan and Shen syndrome (235 cases, 5.55%),asthenia of healthy energy due to lingering arthralgia syndrome (223 cases, 5.27%). The case numbers of remaining syndromes did not exceed 5%.
CONCLUSIONDamp-heat blocking collaterals syndrome was the main syndrome in RA patients, followed by wind-cold-damp impediment syndrome,wind-damp-heat impediment syndrome,cold-damp blocking collaterals syndrome,intermingled phlegm and blood-stasis syndrome, and deficiency of Gan and Shen syndrome.
Arthritis, Rheumatoid ; classification ; diagnosis ; Humans ; Medicine, Chinese Traditional ; Yang Deficiency ; classification ; diagnosis ; Yin Deficiency ; classification ; diagnosis
7.Medallion-like dermal dendrocyte hamartoma: three case reports
Jin HU ; Kai FANG ; Donglai MA
Chinese Journal of Dermatology 2014;47(3):163-165
Three cases of medallion-like dermal dendrocyte hamartoma are reported.The patients included two men and one woman,and were aged from 2 to 38 years.All the patients presented with medallion-shaped,welldefined,slightly atrophic and asymptomatic congenital patches with prominently dilated superficial veins that had grown proportionately with the body length.Histological examination revealed similar changes in all of these patients,including epidermal atrophy and dermal proliferation of spindle cells,which stained positive for CD34,factor ⅩⅢa and vimentin,but negative for S100,CD68,CDla,CD31 and smooth muscle actin (SMA).None of the patients received special therapy,and the lesions enlarged slightly with body growth within 3-4 years of follow-up after the diagnosis.
8.Research progress of esophageal cancer mouse models
Wei MA ; Kai WANG ; Yufeng CHENG
Journal of International Oncology 2013;40(12):915-918
The esophageal cancer mouse models have three categories:chemical carcinogenesis model,xenograft tumor model and genetic engineering model.Chemical carcinogenesis model can simulate well the pathological processes of human esophageal cancer and is prepared simply.Xenograft tumor model is currently the most commonly used esophageal cancer animal model,which has advantages of rapid tumor formation,higher tumor formation rate and lower cost.Genetic engineering model involves mainly p53,Cyclin D1,Brca1 and p120ctn,and it helps to understand the biological characteristics of tumors,but it is expensive and the preparation time is long.
9.Tenascin(TN) expressions and its effect in salivary gland tumor
Journal of Practical Stomatology 2000;0(06):-
Objective:To detect tenascin(TN) expressions and its effect in salivary gland tumor. Methods:The expressions of TN was examined in 8 chronic inflammations of salivary glands, 50 benign adenomas and 57 malign adenomas by Envision immunohistochemical technique. Results:Expression level of TN in the malign adenomas was higher than that in benign adenoma and chronic sialadenitis; higher in low differentiation than that in high differentiation and higher in lymphatic metastasis groups than that without lymphatic metastasis groups. No obviously difference was found between soakage inside the blood vessel and nerves and without soakage. Conclusion: TN might regulate cell attachment of epithelial cells in adenomas, and involve in adenomas' histogenesis and development.
10.The Study on Microvessel Density of Gastric Cancer with Multi-slice Spiral CT and Pathology
Kai MA ; Changhua WANG ; Yuqing LIANG
Journal of Practical Radiology 1996;0(04):-
Objective To investigate the microvessel density of stomach tumor and the relationship between the microvessel density and CT findings.Methods Conventional contrast-enhanced CT scans were performed in 64 patients with stomach tumor(OMNIPAQUE 100 ml,3.0 ml/s),the images at 45 s were gained.After operation,the specimens with partial normal stomach tissue were dealed with injecting the contrast medium through its feeding arteries(10 ml/100 g,within 30 min),then,the specimens underwent CT scan(delayed time 10 s and 20 s),the nets of blood vessel of the masses were reconstructed by post-processed.The density of masses was evaluated in comparison with the enhanced effect of masses before operation.The pathological examinations of specimens were done and the microvessel density of tumors were measured through immunohistochemical technique.The hemodynamic characteristics of tumors were analysed.Results In tumors,the highest density(D)increased with the tumor rank(beside dead band).The visive vessels of specimen were more than that on conventional contrast-enhanced CT,but the D/d(the highest density in the masses/the density in normal stomach tissue)was basically consistent.Conclusion For gastric carcinoma,the D/d ratio can reflect the microvessel density of the tumors on certainly and the hemodynamic characteristics of tumors.