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.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.
3.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
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.The TD-PCR and Phylogenetic Analysis of Bacillus licheniformis 16S rDNA
Kai MA ; Guang-Quan LIU ; Chi CHENG ;
Microbiology 1992;0(04):-
16S rDNA sequences of 30 Bacillus strains originally identified as Bacillus licheniformis from China Center of Industrial Culture Collection (CICC) were determined and analyzed. The results indicated that 24 strains are affiliated to Bacillus licheniformis;3 strains are affiliated to Bacillus cereus and 1 strain is affiliated to Bacillus subitilis;the similarity levels of 16S rDNA among the rest of 2 strains and other strains of Bacillus licheniformis,range from 96.4% to 97.4%,further tests are needed to clarify their position. Also we testified that 5' terminal 500bp of 16S rDNA is available to differentiate the strains of Bacillus licheniformis、Bacillus subtilis and Bacillus cereus.
8.Determination of baicalin and wogonin in Chantui Zhike Granules by HPLC
Kai MA ; Wenjie QIN ; Lei BA ;
Chinese Traditional Patent Medicine 1992;0(04):-
AIM: To establish the determination of baicalin and wogonin in Chantui Zhike Granules (Periostracum Cicadae, Radix Scutellariae, etc.) by HPLC. METHODS: The determination was carried out by HPLC. The mobile phase was acetonitrile 0.6% phosphoric acid(45∶55) and UV detection wavelength was set at 275nm. The flow rate was 1.0mL?min -1 . The column temperature was at 40 ?C . RESULTS: The contents of baicalin and wogonin in Chantui Zhike Granules could be determined by HPLC. There was a good linearity between the absorption peak area and the concentration in the range of 0.104?g~0.52?g for baicalin and in the range of 0.03?g~0.15?g for wogonin, respectively. The average recoveries were 100.69%( RSD =1.75%) and 98.8%( RSD =1.01%) respectively. CONCLUSION: The method is simple, accurate and can be used to determine the contents of baicalin and wogonin in Chantui Zhike Granules.
9.Circumferential pulmonary vein isolation guided by Carto-Merge and Lasso catheters for the treatment of atrial fibrillation
Chinese Journal of Interventional Cardiology 1996;0(04):-
Objective To study the effect of circumferential pulmonary vein isolation(CPVI) guided by Carto-Merge and Lasso catheter for the treatment of atrial fibrillation(AF).Methods Fifty-six drug refractory patients(41 male) with paroxysmal AF were enrolled into this study with a mean age of(58.5?12.7) years.Ostia of pulmonary veins(PVs) were identified by Carto-Merge.Then circumferential pulmonary vein isolation was performed.The endpoint of ablation was abolishment or dissociation of the pulmonary vein potentials(PVPs).Results Mean distance between electroanatomic mapping points and MRI surfaces was(1.79?0.33) mm as a whole in this group.Abolishment or dissociation of PVPs was accomplished in 52 patients(92.9%) during the first procedure.After a mean(18.3?5.7) months of follow up,41 patients(73.2%) maintained sinus rhythm.Ten patients received a second ablation procedure,and 8 were free of atrial tachyarrhythmias after a mean(8.2?6.9) months of the second follow up.No PV stenosis was identified after ablation procedure.Conclusion Combination of Lasso catheters with Carto-Merge to guide the CPVI procedure can confirm the isolation of PVs and lower the incidence of PVs stenosis.
10.Efficacy and Safety of Ultrasonography-Guided Percutaneous Nephrolithotomy via Supracostal Approach
Qingquan XU ; Xiaobo HUANG ; Kai MA
Chinese Journal of Minimally Invasive Surgery 2005;0(08):-
Objective To evaluate the efficacy and safety of ultrasonography-guided percutaneous nephrolithotomy(PCNL).Methods Between May 2006 and June 2008,110 patients underwent PCNL by a single urological team at our hospital.The clinical data of the patients were retrospectively reviewed.Of the cases,supracostal access(the 11th intercostal space) was made in 62 patients(supracostal group),and subcostal access was obtained in 48 patients(subcostal group).Forty-five patients in the supracostal group(45/62) and 36 of the subcostal group(36/48) received CT three dimensional reconstruction.Results The stone free rate of the supracostal group was 72.6%(45/62),while that of the subcostal group was 60.4%(29/48;?2=1.818,P=0.178).The mean operation time of the supracostal group was(78.6?5.1) min,while that of the subcostal group was(102.4?7.1) min(t=-20.454,P=0.000).There was one patient in each group received blood transfusion.One patient in the supracostal group had pneumothorax and recovered uneventfully by conservative treatments.Conclusion Ultrasonography-guided PCNL via the supracostal approach is effective and safe with short operation time.