1.Early identification and treatment of parathyroid carcinoma
Chinese Journal of Endocrinology and Metabolism 2014;30(4):362-364
Parathyroid carcinoma is a rare endocrine tumor.Clinical manifestations are varied with multiple organs involved,mainly due to hypercalcemia.So far the etiology and pathogenesis of parathyroid carcinoma are still unclear and preoperatively diagnosis is difficult.Technetium-99 m sestamibi scan and ultrasound can help to find the early lesions.Complete surgical resection with suspicious involved lymph nodes is the recommended treatment.Parathyroid carcinoma is insensitive to chemotherapy and radiotherapy.New immune therapy yields unsure efficacy.Therapeutic effect and prognosis mainly depend on primary surgical resection of the tumor.The disease recurs in more than 50% of patients with poor prognosis.
2.A retrospective analysis of 1028 adverse events of medical device reports.
Chinese Journal of Medical Instrumentation 2013;37(6):447-450
OBJECTIVETo provide suggestion for MDAEs monitoring with analyzing the features of the 1028 reports of MDAEs.
METHODSWith retrospective case study, this paper analyzed 1 028 MDAE reports in Guiyang during 2012.
RESULTSThe intrauterine device (IUD) caused the higher proportion of adverse events with serious degree. Monitoring consciousness of grassroots users needs to be improved. The quality of the reports should be enhanced.
CONCLUSIONSMore attention should be paid to monitoring on IUD. The level of MDAEs monitoring should be improved through carrying out targeted training and publicity, establishing and improving MDAEs monitoring network.
Equipment Safety ; Intrauterine Devices ; adverse effects ; Product Surveillance, Postmarketing ; Retrospective Studies
3.Potential effect and mechanism of IFN? on tumor angiogenesis
Chinese Journal of Clinical Pharmacology and Therapeutics 2004;0(08):-
AIM: To study the effect and potential mechanism of IFN? on tumor angiogenesis. METHODS: Human umbilical cord vascular endothelial cell (HUVEC) was cultured in vitro. The effect of IFN? (10, 100, and 1000 unit?ml -1) on proliferation of HUVEC was detected by MTT assay in vitro. HUVEC pretreated with IFN? (10, 100, and 1000 unit?ml -1) was stained with PI and detected by flow cytometry (FCM). The mRNA expression of apoptosis relative gene Bcl-2 and Bax of HUVEC treated with IFN? (100, and 1 000 unit?ml -1) were detected with semi quantitative reverse transcription- polymerase chain reaction (RT-PCR). IFN? (30, 300, and 3 000 unit?ml -1) on VEGF secretion and expression in human lung carcinoma cell PG in hypoxia were detected by ELISA assay. CONCLUSION: The key attributes of IFN? on tumor angiogenesis possible directly inhibit vascular endothelial cells or indirectly inhibit growth factors secretion and expression in tumor cells.
4.Clinical analysis on olfactory sulcus polyp
Xiaolin CAO ; Zhenghu WU ; Lin LIN
Medical Journal of Chinese People's Liberation Army 2001;0(12):-
Objective To investigate the incidence,original location and clinical features of olfactory sulcus polyp in patients with chronic sinusitis.Methods Two hundred and seventeen cases(351 sides) with chronic sinusitis were reviewed,their olfactory sulcus was carefully examined with nasal endoscope during operation.The incidence and original location of olfactory sulcus polyp were observed,and the relationship between olfactory sulcus polyps and prognosis of chronic sinusitis or olfaction of the patients with olfactory sulcus polyps were also statistically analyzed with Chi-square test and Spearman rank correlation.Results The incidence of olfactory sulcus polyp in the cases with chronic sinusitis was 18.52%.Among these cases with olfactory sulcus polyps,the rate of olfactory disorder was 81.82%,which was higher than that in the cases without olfactory sulcus polyps(25.63%,P
5.Effect of ketamine on glutamate induced apoptosis in cultured rat cerebellar granule neurons
Lin CAO ; Dexiong CAO ; Xingwen SU
Chinese Journal of Anesthesiology 1994;0(04):-
Objective To investigate if ketamine protects cultured rat cerebellar granule neurons (CGNs) from apoptosis induced by glutamate and its possible mechanism of signal transduction. Methods Primarily cultured CGNs prepared by enzymatical digestion of cerebellum isolated bom 7-8 day old SD rats were randomly divided into 8 groups: (1) control group (C); (2) glutamate group (G) in which CGNs were incubated with 300 ?mol?L-1 glutamate; (3) (4) (5) ketamine groups (K1 , K2, K3) in which CGNs were incubated with ketamine 10 (K1 ) 100 (K2) or 1 000 (K3) ?mol ? L-1 for 1h before glutamate was added; (6) Ly 294002 - K3 group (LK3) in which CGNs were incubated with 20 ?mol?L-1 Ly 294002 (a specific phosphatidyl-inositol 3-kinase inhibitor) for 30 min before ketamine 1 000 ? mol ? L-1 and glutamate were added as in group K3; (7) Ly 294002 group (L) in which CGNs were incubated with Ly 294002 20?mol ? L-1 and (8) Ly 294002-glutamate group (LG) in which CGNs were incubated with Ly 294002 20 ?mol ? L-1 for 30 min before glutamate was added. After 20 h incubation the apoptosis in CGNs was detected by Hoechst 33258 nucleus staining, phase-contrast microscopy and DNA fragmentation agarose gel electrophoresis. The neuronal survival was determined by fluorescein diacetate (FDA) staining.Results Glutamate 300 ?mol ? L-1 induced apoptosis in CGNs as characterized by cytoplasmic blebbing, heterochromatic clumping, condensation of nuclear chromatin and a typical apoptotic DNA ladder revealed by agarose gel electrophoresis. Ketamine improved the survival of CGNs incubated with glutamate (300 ?mol ? L-1) and blocked the glutamate-induced apoptosis in a concentration-dependent manner. Ly 294002 (20 ?mol ? L-1) antagonized the anti-apoptotic effects of ketamine. Conclusion Ketamine can protect CGNs from apoptosis induced by glutamate. Phosphatidyl-inositol 3-kinase/Akt pathway may be involved in the antiapoptotic action of ketamine.
6.Evaluation methods of anterior chamber and angle structures after laser peripheral iridotomy
Chinese Journal of Experimental Ophthalmology 2011;29(2):174-178
Laser peripheral iridotomy ( LPI) is one of the main therapy for glaucoma due to its reliable efficacy of widening peripheral angle and therefore decreasing intraocular pressure by partially relieving pupillary block. The parameters of the anterior chamber angle following the LPI are the main evaluation indexes. At present,the detecting and diagnosis technique for the anterior chamber angle is deeply advancing, including gonioscopy, ultrasound biomicroscopy, anterior segment optical coherence tomography and Pentacam. These methods offer some useful parameters and also present with some limits in the application respectively in the evaluation of anterior chamber and angle structure. This review focuses on the application of Methods mentioned above and morphologic changes of anterior chamber and angle structure following the LPI.
7.Distribution of the Genetic Polymorphism of CYP2C9 and VKORC1 in Uighurian Patients in Xinjiang and Comparison among Different Ethnic Populations
Linna AN ; Hong CAO ; Xiaoqi LIN
China Pharmacy 2015;(24):3332-3334
OBJECTIVE:To provide basis for the establishment of warfarin individualized administration model that is suitable for Uighurian patients in Xinjiang. METHODS:The genotypes of CYP2C9 and VKORC1 in 200 Uighurian patients in xinjiang were detected and compared with the genotypes and allele frequency of different ethnic populations in world. RESULTS:The frequency of CYP2C9*1/*1 homozygous wild type in Xinjiang Uighurian patients was lower than South Korea,Japan,the United States and Han nationality in China,higher than Turkey;the frequency of *1/*2 heterozygous mutant was lower than Turkey,Sweden and the United Kingdom,higher than South Korea,Japan and Han nationality in China;the frequency of *1/*3 heterozygous mutant was higher than Japan,South Korea,Han nationality in China,the United Kingdom and the United States;the frequency of *3/*3 was higher than the populations above(P<0.05). *1 allele in Xinjiang Uighurian patients was lower than Han nationality in China,Ja-pan,South Korea and the United States,higher than Turkey(P<0.05). *2 allele was higher than Han nationality in China,Japan and South Korea,lower than Turkey,Sweden and the United Kingdom(P<0.05). *3 allele was higher than Han nationality in Chi-na,Japan,South Korea,Sweden,the United Kingdom and the United States(P<0.05). The frequency of VKORC1-1639AA in Xinjiang Uighurian patients was higher than the United States Sweden,the United Kingdom,lower than Singapore,Japan,Taiwan China and Han nationality in China. The frequency of type AG was higher than Singapore,Japan,Taiwan China,Han nationality in China. The frequency of type GG was higher than Singapore,Japan,Taiwan China,Han nationality in China,lower than the United States,Sweden and the United Kingdom(P<0.05). Type A allele in Xinjiang Uighurian patients was lower than Han nation-ality in China,Taiwan China,Japan and Singapore,higher than the United States,Sweden and the United Kingdom;type G was higher than Han nationality in China,Taiwan China,Japan and Singapore,lower than the United States,Sweden and the United Kingdom(P<0.05). CONCLUSIONS:The distribution of CYP2C9 and VKORC1 gene polymorphism in Uighurian patients in Xin-jiang are obviously different from Asian,European and American populations.
8.Experimental study of the Chinese herbs of Li Qi Huo Xue on preventing and treating the vascular endothelial cells injury in ratsl
Jianhong ZHAO ; Lin LIN ; Hui CAO ; Jifa GAO ; Fanhe ZHU
Chinese Journal of Clinical Pharmacology and Therapeutics 2001;6(1):41-43
AimTo establish a model of the injury of the vascular endothelial cell(VEC) in rats and observe the function of Chinese herbs of Li Qi Huo Xue(LQHX) will prevent and treat the VEC injury. Methods30 SD rats weredivided into the control, the model and LQHX groups. The model of the VEC injury was established. It tried to demonstrate the effect of LQHX for the coagula tion and fibrinolysis function of the VEC by the C EC count,t-PA, PAI activity, 6-keto-PGF1αcontent and PAgTmax. Results In LQHX group as compared with those of the medol group, The CEC count was redued obviously(P<0.01). t-PA activity was increased(P<0.01), so did the percentage of active t-PA(P<0.01), but PAI activity decreased (P<0.05), 6-keto-PGF1α content increased (P<0.01)α the PAgTmax decreasd (P <0.01) Conclution LQHX can enhance the anticoagulation and fibrinolysis activities. It is a more effective measure for the VEC protection.
10.Vibrio vulni f icus pollution condition in marine products in Zhuhai region and drug susceptibility analysis
Minhua CAO ; Lin KUANG ; Lin HUANG ; Wen XU
International Journal of Laboratory Medicine 2014;(15):2011-2012,2015
Objective To understand the vibrio vulnificus pollution condition in marine products in Zhuhai region and the drug resistance situation to provide the basis for further study of vibrio vulnificus and clinical medication .Methods 89 samples were col-lected from the marine products wholesale market ,pedlars′market and supermarkets in Zhuhai region and the method published by the US Food and Drug Administration (FDA) was adopted to perform the qualitative detection of vibrio vulnificus .The identifica-tion of bacteria and the drug sensitivity test were performed by using the ATB instrument .Results In 89 samples of marine prod-ucts ,vibrio vulnificus was detected in 39 samples ,the total positive rate was 43 .82% .The detection rate of oyster was as high as 60 .87% (28/46) ,followed by marine fish (39 .13% ,9/23) and marine shrimp (20 .00% ,2/10) .The drug sensitive test showed that vibrio vulnificus had the resistant strains to cephalosporins and aminoglycoside drugs .Conclusion The seafood vibrio vulnificus pollution in Zhuhai region can not be ignored .The monitoring of vibrio vulnificus in the marine products and the drug resistance a-nalysis should be strengthened for effectively preventing the outbreak of vibrio vulnificus .