ObjectiveTo study the contents of CD44 that shared exon variant 5 (CD44v5) in peripheral blood lymphocytes (PBL) of patients with gastric carcinoma and the expression of CD44v5 in tumor tissue and their clinical significance. MethodsThe contents of CD44v5 were determined by FlowCytometry in PBL of 31 patients with gastric carcinoma before surgery and 10 normal controls. Tissue expression of CD44v5 in 33 patients with gastric carcinoma was investigated by immunohistochemistry. ResultsThe contents of CD44v5 were significantly higher in PBL of patients with gastric carcinoma before surgery than those of controls (P＜0.01). Nodepositive gastric cancer patients showed significantly elevated contents of CD44v5 in PBL in comparison with nodenegative gastric cancer (P＜0.01）. Significant correlations were noted between the contents of CD44v5 in PBL of patients with gastric carcinoma before surgery and tumor size, depth of invasion, lymph node metastasis and different the Vnion International Centre Le Cancer (VICC) stages of tumor (P＜0.05). The expression of CD44v5 could be detected in 69.7% of tumor tissue,but was not detected in adjacent normal gastric mucosa. Significant correlations were noted between CD44v5 expression and depth of invasion,and lymph node metastasis.The presence of CD44v5 protein was correlated with the lymph node involvement rate. Conclusion CD44v5 in PBL or tumor tissue may be useful as a metastatic marker. It may be of important clinical value in the diagnosis of metastasis and judgement of development for the patients with gastric cancer.
Peripheral exudative hemorrhagic chorioretinopathy (PEHCR) is a peripheral retinal disease characterized by subretinal hemorrhage and/or subretinal pigment epithelial hemorrhage or exudation. It is often misdiagnosed as age-related macular degeneration, polypoidal chorioretinopathy or choroidal melanoma. With the development of multimodal imaging, PEHCR has different features under different examinations, such as B-scan ultrasound, fluorescein fundus angiography, optical coherence tomography and so on, which contributes to differention from other diseases. Clinical treatments for the disease include intravitreal injection of retinal photocoagulation therapy, anti-vascular endothelial growth factor, pars plana vitrectomyand so on, but there is still no universal consensus. In order to gain a deeper understanding of the clinical features, treatment options and prognosis of PEHCR, minimize missed diagnoses and misdiagnoses, and improve treatment efficiency, further research is required.
Effect of radical operation on expression of interleukin-2(IL-2)mRNA and production of IL-2 were markedly reduced preoperatively and four weeks after operation,expression of IL-2 mRNA significantly enhanced,but it was still lower than that in the normal group.Production of IL-2 nearly reached normal level,When PBL was activated by phytohemagglutinin(PHA),expresseion of IL-2 mRNA and production of IL-2 were much higher than that in non-activated PBL.These results suggested that expression of IL-2 were much higher than that in non-activated PBL.These results suggested that expression of IL-2 mRNA and production of IL-2 are dificient in gastric cancer patients,and radical surgery will help them to recover and they can also be improved through activation with PHA.
ObjectiveTo explore the trend and hotspots of research in the field of peripherally inserted central catheter (PICC), so as to provide a reference for clinical nursing and nursing research in the field of vascular access in China.MethodsAll PICC-related articles from 1806 to November 22nd, 2018 were searched in the Foreign Medical Retrieval System. The publication amount, year of publication, language, country, journals and impact factor, high-yield authors and high-frequent medical subject headings (MeSH) of the PICC-related articles were analyzed by using frequency, cumulative frequency, and constituent ratio.ResultsA total of 1 550 articles were included. They were published in 586 journals, of which 393 were included in Science Citation Index. English was the dominant publication language, and the top high-yield country was the United States. The top 16 high-yield authors published 199 articles, the top 3 of whom all had published co-operative papers, ranging from 1 article to 19 articles. The top 3 high-frequent MeSHs were “Catheters, Indwelling” “Catheterization, Central Venous” “Central Venous Catheter”.ConclusionsPICC has become a hotspot in clinical research, and the publication amount of relative literature has increased rapidly since 2000. Chinese scholars should improve their English and carry out multi-center cooperative research to improve the quality of PICC-related literature.
目的 了解成都市肿瘤科医护人员经外周静脉留置中心静脉导管术（PICC）认知现状，为今后开展PICC相关知识培训提供科学依据。 方法 2009年12月－2010年1月采用自行设计的问卷对成都市5家三甲医院的肿瘤科医护人员309名（医生134名，护士175名）进行PICC认知态度现状调查。 结果 成都市三甲医院肿瘤科医护人员PICC认知呈中等偏低的水平，护士PICC知识的掌握高于医生（P＜0.05），护士PICC态度得分优于医生（P＜0.05）。94.84%的医护人员知道PICC技术；只有8.38%的肿瘤科医护人员接受过PICC专业培训。不同文化程度、年龄、工龄、职业与PICC认知之间的差异存在统计学意义（P＜0.05）。 结论 三甲医院肿瘤科医护人员对PICC技术有一定的了解，但总体认知仍有待提高，需加强PICC相关知识培训，进一步提高医护人员PICC认知水平，以利于肿瘤专科开展PICC技术，促进肿瘤护理的专业化发展。
With the development of interventional therapy technology, trans radial access (TRA) has gradually become the main approach of interventional therapy. Compared with trans femoral access (TFA), TRA has obvious advantages, which can shorten the time of lying in bed and reduce the incidence of complications. However, the radial artery is thinner than the femoral artery, the incidence of spasm is high, and the success rate of puncture is low, so the technical level of operation is required to be high. Nowadays, TRA has been gradually applied to lung cancer, aortic disease, hepatocellular carcinoma, spleen disease, renal artery disease, and other peripheral vascular diseases. With the confirmation of the safety and feasibility of TRA in interventional therapy in different fields, the popularization of TRA in different interventional fields will be supported.