1.Advances in the genetics of moyamoya disease
Xiaomeng WANG ; Xianjun HUANG ; Gelin XU
International Journal of Cerebrovascular Diseases 2012;20(7):508-512
Moyamoya disease is a rare cerebrovascular disease.Its incidence is higher in the East Asia.The pathogenesis of MMD remains unclear at present,but the epidemiological research both at home and abroad suggests that the genetic factors play an important role in the onset of MMD.This article briefly reviews the recent progress in research on MMD related genes.
2.Ivy sign of moyamoya disease
Xianjun HUANG ; Zhiming ZHOU ; Gelin XU
International Journal of Cerebrovascular Diseases 2016;24(2):131-133
Moyamoya disease is an uncommon cerebral disease, but its morbidity is relatively high in East Asian populations. Ivy sign refers to the dot or linear high signal phenomenon in MRI T1 enhanced sequence in patients with moyamoya disease. It mainly distributes in the pial surface of cerebral cortex or within subarachnoid space. It has important significance for diagnosing moyamoya disease and assessing the staging and prognosis of moyamoya disease. This article briefly reviews this imaging finding and its significance.
3.Effect of Yinxingdamo on hemodynamics of cerebral circulation in patients with acute cerebral infarction
Hong CAO ; Xianjun KE ; Kang XU
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(02):-
Objective To study the effect of Yinxingdamo (compound of ginkgo biloba extract) on hemodynamics of cerebral circulation in patients with acute cerebral infarction (ACI). Methods Sixty patients with first ACI of carotid artery system were randomly divided into a treatment group (30 cases) and a control group (30 cases), and treated with the drug Yinxingdamo plus therapeutic exercise and therapeutic exercise, respectively. The cerebrovascular dynamics indexes (CVDI) of both groups were investigated before and after the treatment. Results The Vmin and Qmin of carotid artery in the two groups were increased after treatment and the cerebrovascular resistance (R) was decreased (P
4.Research on antithrombotic effect of total saponins of Astragalus
Jian GAO ; Xianxiang XU ; Xianjun XU ; Shoudong NI ;
Chinese Traditional Patent Medicine 1992;0(02):-
Objective: To research antithrombotic effect and mechanism of total saponins of Astragalus (TSA).Methods: Effects of TSA on artery thrombosis anud platelet aggregation were studied, at dosage of 50,100,200mg/kg. And level of TXA 2,PGI 2 in plasma, content of NO in serum of rats were determined.Results: TSA could restrain artery thrombosis and platelet aggregation of rats, and increase PGI 2 and NO.Conclusion: There was apparently antithrombotic effect of TSA.
5.Sudden Cardiac Death of Incarcerated Prisoners:A Study of 75 Cases
Lan YU ; Limin DONG ; Xianjun HOU ; Kai SHI ; Kai XU
Journal of Forensic Medicine 2014;(2):112-113,116
Objective To investigate the characteristics and influencing factors leading to sudden cardiac death (SCD) of incarcerated prisoners. Methods Seventy-five SCD cases of prisoners between 2000 and 2013 in Henan province were collected, and environment, psychological and physical factors were retro-spectively analyzed. Combined with histopathological results, specific factors of SCD were also studied. Results In the 75 cases, 21 cases (28%) had definite chronic past medical histories, and 75 cases (100%) had cardiovascular disease confirmed by autopsy. Conclusion Due to presence of the potential cardiac diseases, special incarcerated environment, psychological stress, and body-restraint might be the precipitat-ing factors in SCD of those prisoners.
6.Cerebral hemodynamics in Moyamoya disease
Xianjun HUANG ; Wenhua LIU ; Gelin XU ; Wusheng ZHU
International Journal of Cerebrovascular Diseases 2010;18(6):441-444
Cerebral hemodynamic changes are an important pathophysiologic process for the occurrence and development of Moyamoya disease. Cerebral hemodynamic changes of Moyamoya disease have been a research focus. This article mainly reviews the cerebral hemodynamic parameters and detecting methods, characteristics of cerebral hemodynamic changes in patients with Moyamoya disease and their new progress.
7.Fluorescence PCR for detecting ureA gene of Helicobacter pylori in feces
Shenghai WU ; Lihui XU ; Daojun YU ; Xianjun WANG
Chinese Journal of Clinical Infectious Diseases 2010;3(3):162-165
Objective To evaluate the application of fluorescence PCR in detecting ureA gene of Helicobacter pylori(HP)in feces.Methods Fluorescence PCR was used to detect ureA gene of HP in feces from 50 patients,including 23 confirmed by gastric biopsy urease test and histological staining.Bacterium culture and serum antibody detection were also performed, and chi-square test was used to compare the sensitivity,specificity,positive predictive value and negative predictive value among three methods.Results The sensitivity,specificity,positive predictive value and negative predictive value of fluorescence PCR were 1.00,0.96,96.O%and 100.0%,while those for HP culture were 0.78,1.00,100.0%and 84.0%,and thee for serum antibody detection Was 0.96,0.74,76.O%and 95.0%.There were significant differences in sensitivity and negative predictive value between PCR and bacterium culture (X2=5.60 and 4.44,P<0.05),and significant differences in specificity and positive predictive value between PCR and serum antibody detection(X2=5.28 and 4.08,P<0.05).Conclusion ureA gene detection in feces by fluorescence PCR is of value for the diagnosis of HP infection.
8.Experience of CHEN Yingloni treating common diseases in Fujian and Taiwan with acupuncture and medication.
Xiaohong DENG ; Xianjun MENG ; Anning ZHU ; Weiwei XU ; Shulei LI
Chinese Acupuncture & Moxibustion 2016;36(2):187-190
With literature of professor CHEN Yinglong such as Medical Notes of Doctor CHEN Yinglongfor Taiwan Compatriots,the'experience of doctor CHEN Yinglong treating common diseases in Fujian and Tai-wan is summarized. The diseases in the paper are constipation, retention of urine, asthma, vec6rdia, bi syndromeinsomnia, thoracic obstruction, pediatric obesity and freckle of face, etc. It is discovered that professor CHENYinglong treated diseases with combination of acupuncture and medication and accurate acupoints according to thefeature of climate in Fujian and Taiwan.
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9.Recent advances in basic research, clinical diagnosis and treatment of pancreatic cancer in 2016
Dingkong LIANG ; Si SHI ; Jin XU ; Xianjun YU
China Oncology 2017;27(4):241-250
Pancreatic cancer is a highly malignant, fast progressive digestive system neoplasm with poor prognosis, and the incidence has increased significantly in the recent years. The treatment mode of pancreatic cancer has been transformed from surgery-first approach to multidisciplinary approach including surgery, chemotherapy, radiotherapy and other comprehensive treatment modalities, accompanying with significant improvement in clinical efficacy. During the last decade, the molecular mechanism of pancreatic cancer has been explored in depth. Indeed, we had a clearer understanding of the disease, which provides clues for translation of basic research into clinical practice. This review summarized recent high quality studies on pancreatic cancer including pathogenic factor, advances in basic research, and clinical treatment.
10.Prokaryotic expression of Helicobacter pylori cheA and cheY genes and correlation among the expressed products and bacterial chemotactic behavior
Shenghai WU ; Lihui XU ; Jie YAN ; Xianjun WANG
Chinese Journal of Microbiology and Immunology 2009;29(12):1099-1103
Objective To clone the cheA and cheY genes of Helicobacter pylori for construction of their prokaryotic expression systems, and to establish chemotactic model in vitro of H. pylori for determing chemotaxis-inducing substances and to understand the effects of specific antibody and closantel on inhibiting chemotactic behavior of the microbe. Methods The segments of entire cheA and cheY genes were amplified by PGR and then sequenced after T-A cloning. Prokaryotic expression systems of the genes were subsequent-ly constructed. SDS-PAGE plus Bio-Rad Gel Image Analyzer were used to examine the expression of target recombinant proteins rCheA and rCheY, and Ni-NTA affinity chromatography was performed to extract rCheA and rCheY. Rabbits were immunized with rCheA and rCheY to obtain antisera and IgG in each of the anti-sera was extracted by saturated ammonium sulfate precipitation and DEAE-32 ion exchange chromatography. Immunodiffusion assay was performed to measure the titers of antisera and their IgGs. Chemotactic model in vitro of H. pylori based on hard-agar plus method was established to determine the chemotaxis-inducing effects of eleven candidate substances. Simultaneously, the effects of rCheA-lgG and closantel sodium on blocking the bacterial chemotactic behavior were also observed. Results The segments with expected sizes of cheA and cheY genes were obtained by PCR, and their nucleotide and putative amino acid sequences were 100% idenities to the reports. The constructed prokaryotic systems could efficiently express rCheA and rCheY. The two rabbit antisera and IgG aginst rCheA and rCheY had 1 : 4 and 1 : 2 immunodiffusion titers, respectively. Hydrochloric acid, sulfuric acid and acetic acid were able to induce chemotactic movement of H. pylori. Both rCheA-IgG and closantel sodium with certain concentrations could weaken the chemotactic ability of H. pylori(P<0.05). Conclusion The prokaryotic expression systems of H. pylori cheA and cheY genes were successfully generated in this study. Hydrogen ion (H~+) is the inducer for chemotaxis of H. py-lori. rCheA-IgG, as well as closantel sodium can inhibit H~+-induced chemotaxis of H. pylori.