血细胞分析仪与手工法RET计数结果比对及其临床意义

目的：对Sysmex XE-5000全自动血细胞分析仪计数网织红细胞（RET）与手工显微镜法结果对比,并浅析RET 参数的临床价值。方法用Sysmex XE-5000全自动血细胞分析仪与传统手工法同时检测RET计数,且对两种检测方法的结果进行比对分析,并对仪器测定RET的各项参数的临床意义进行分析。结果两种方法的结果对比无显著性差异,且相关性良好;健康组与贫血组RET各项参数比较,贫血组中除低荧光强度RET（LFR）指标低于健康组外,其他各项参数结果均明显高于健康组。结论 Sysmex XE-5000全自动血细胞分析仪检测RET操作简便,检测速度快,准确性好,精密度高,其检测参数可以用于临床贫血性疾病的诊断。     

血液学检验与临床

081825地中海贫血妊娠妇女网织红细胞6项参数观察／赵应斌…∥检验医学．-2008,23（1）．-27～29用Sysmex XE-2100血细胞分析仪测定112例地中海贫血（地贫）妊娠妇女网织红细胞百分率（RET％）、网织红细胞绝对值、未成熟网织红细胞比率（IRF）、低荧光强度网织红细胞百分率（LFR）、中荧光强度网织红细胞百分率（MFR）、高荧光强度网织红细胞百分率（HFR）。     

网织红细胞各参数的检测在贫血性疾病中的临床意义

目的：探讨网织红细胞（RET ）相关参数检测在贫血性疾病中的临床意义。方法应用Sysmex XE-5000全自动血液分析仪对患者的 RET 百分比（RET％）、RET 绝对值（RET ＃）、高荧光强度网织红细胞百分比（H FR％）、中荧光强度网织红细胞百分比（M FR％）、低荧光强度网织红细胞百分比（L FR％）以及未成熟网织红细胞比率（IRF）进行检测,并与对照组进行比较分析。结果溶血性贫血患者LFR％降低,RET％、RET ＃、HFR％、M FR％以及IRF均比对照组明显升高,差异有统计学意义（ P＜0．01）;再生障碍性贫血患者 RET％、RET ＃、HFR％、MFR％、LFR％以及 IRF明显降低,差异有统计学意义（P＜0．01）;缺铁性贫血患者 RET％、RET ＃、H FR％、M FR％、L FR％以及IRF比对照组稍增高,但差异无统计学意义。结论网织红细胞相关参数检测可以更准确反映网织红细胞的成熟状态,从而判断骨髓的造血功能,对不同类型的贫血性疾病的诊断、治疗具有重要参考价值。     

XE-2100血细胞分析仪Blasts/Imm Gran报警信息的可信性分析

<正>Sysmex XE-2100全自动血细胞分析仪(简称XE-2100)血细胞分析仪是日本Sysmex公司推出的全自动多参数五分类血细胞分析仪,能及时、准确地测定白细胞、红细胞、血小板、白细胞分数计数、网织红细胞等多项参数,并能对检测到     

Sysmex XE-2100全自动血细胞分析仪分析网织红细胞性能评价

目的：探讨Sysmex XE-2100全自动血细胞分析仪分析网织红细胞的性能并作评价。方法：对XE-2100分析仪分析网织红细胞的精密度、稳定性、线性范围、敏感性和携带污染率进行测定．再将50例住院病人血标本用Sysmex XE-2100分析仪测定网织红细胞结果与显微镜计数结果进行相关性分析。结果：XE-2100全自动血细胞分析仪分析网织红细胞的精密度、稳定性、线性范围、敏感性和携带污染率均在允许范围内；Sysmex XE-2100分析网织红细胞结果与显微镜计数结果相关性良好，r=-0．9987。结论：Sysmex XE-2100血细胞分析仪分析网织红细胞的性能良好，具有准确度高、重复性好、检测速度快和简便快捷等优点，标本免除预处理，是常规实验室测定网织红细胞的较理想仪器。     

Sysmex XE-5000全自动血细胞分析仪计数网织红细胞与手工法结果的比对分析

目的 比对Sysmex XE-5000全自动血细胞分析仪网织红细胞(RET)计数的结果与手工法结果.方法 同一标本同时用Sysmex XE-5000全自动血细胞分析仪与传统的显微镜手工法进行RET计数,对结果进行比较分析.结果 2种方法的结果无统计学差异,正常值、高值还是低值RET计数结果的变异系数均在允许范围内.结论 用Sysmex XE-5000全自动血细胞分析仪计数RET准确性好,精密度高,标准化程度高,为临床医师申请仪器法进行RET计数提供有力的证据.     

网织红细胞参数在贫血疾病诊断中的临床价值

目的探讨网织红细胞参数在贫血疾病诊断中的临床价值。方法以Sysmex XE-2100型血液分析仪分别对80例健康体检者及206例贫血患者网织红细胞百分率（RET％）、网织红细胞计数绝对值（RET#）、高荧光网织红细胞百分率（HFR％）、中荧光网织红细胞百分率（MFR％）、低荧光网织红细胞百分率（LFR％）及未成熟网织红细胞比率（IRF％）进行测定。结果缺铁性贫血组、失血性贫血组及二联性贫血组RET#与对照组无显著差异（．P〉0．05），RET％，MFR％，HFR％及IRF％高于对照组，LFR%低于对照组；溶血性贫血组RET％，RET#，MFR％，HFR％及IRF％均显著高于对照组（P〈0．01），LFR％显著低于对照组（P〈0．01），其减低及增高的幅度均显著高于其它各类型贫血。各贫血组IRF％增高较明显，如果以IRF〉9．O％为标准诊断缺铁性贫血、溶血性贫血、失血性贫血及二联性贫血，其检测的灵敏度分别为94．4％，93．5％，52．6％和96．3％，特异度均为96．3％，阳性预测值分别为94．4％，93．5％，93．2％和89．7％，阴性预测值分别为96．3％，96．3％，67．5％和97．5％。结论Sysmex XE-2100型血液分析仪测网织红细胞及其分类参数有助于判断红细胞的活动度，对贫血疾病的诊断及鉴别诊断具有重要的实用价值。     

红细胞及网织红细胞多参数分析在地中海贫血患者中的变化

目的：探讨红细胞及网织红细胞参数在地中海贫血患者中的变化。方法：应用XE-2100全自动血细胞分析仪检测31例正常人（对照组）和46例地中海贫血患者（观察组）RBC、Hb、HCT、MCH、MCHC、MCV和网织红细胞百分比（RET％）、网织红细胞绝对值（RET#）、未成熟网织红细胞比率（IRF％）、低荧光强度网织红细胞比率（LFR％）、中荧光强度网织红细胞比率（MFR％）、高荧光强度网织红细胞比率（HFR％）等六项网织红细胞参数，并对检测结果进行分析。结果：地中海贫血患者红细胞和网织红细胞各参数与对照组相比差异具有显著性（P〈0．05），其中网织红细胞百分比、网织红细胞绝对值、未成熟网织红细胞比率、中荧光强度网织红细胞比率、高荧光强度网织红细胞比率显著性增高（P〈0．05），RBC、Hb、HCT、MCH、MCHC、MCV、LFR％明显下降（P〈0．05）。结论：网织红细胞参数为反映骨髓造血功能较好的指标。     

正常儿童网织红细胞六项参数参考值范围调查

目的 确定儿童网织红细胞六项参数参考值。方法 采用Sysmex XE-2100全自动血细胞分析仪进行检测536例正常儿童网织红细胞（Ret）各项参数的参考值．将所得数据用统计学处理。结果 网织红细胞百分数（Ret％）与绝对数（Ret#）在男性与女性之间有显著性差异（P〈0．01），而网织红细胞未成熟指数（IRF％）、高荧光度网织红细胞（HIR％）、中荧光度网织红细胞（MFR％）和低荧光度网织红细胞（LIR％）在男性与女性之间没有显著性差异（P〉0．05）。与成人网织红细胞参数参考值相比有显著性差异（P〈0．01）。结论 网织红细胞的各项参数的参考值与年龄有关，因此应建立正常儿童网织红细胞各项参数参考值。     

正常儿童网织红细胞六项参数参考值范围调查

目的 确定儿童网织红细胞六项参数参考值.方法 采用Sysmex XE-2100全自动血细胞分析仪进行检测536例正常儿童网织红细胞(Ret)各项参数的参考值,将所得数据用统计学处理.结果 网织红细胞百分数(Ret%)与绝对数(Ret#)在男性与女性之间有显著性差异(P＜0.01),而网织红细胞未成熟指数(IRF%)、高荧光度网织红细胞(HIR%)、中荧光度网织红细胞(MFR%)和低荧光度网织红细胞(LIR%)在男性与女性之间没有显著性差异(P＞0.05).与成人网织红细胞参数参考值相比有显著性差异(P＜0.01).结论 网织红细胞的各项参数的参考值与年龄有关,因此应建立正常儿童网织红细胞各项参数参考值.     

La continuité de prise en charge lors de la transition des soins de l'enfant à l'adulte handicapé

Most children born with a chronic health condition or disability are expected to live more than 20 years. Health care is provided for these children in paediatric units until they are 18 years old, and the transition to the adult health care system is difficult because of poor collaboration between specialists and families who sometimes wonder if the adult specialist will be competent, although young disabled people need specialised follow-up. This report discusses U.S. and English models in the transition in health care. Coordination between paediatricians and adult services is necessary. The neuromuscular disorders clinic is cited as an example.     

Effect of epirubicin-based chemotherapy and dexrazoxane supplementation on QT dispersion in non-Hodgkin lymphoma patients

BACKGROUND AND OBJECTIVE: Aim of the present study was to assess the effect of epirubicin-based chemotherapy on QT interval dispersion in patients with aggressive non-Hodgkin lymphoma (NHL), and the effect of dexrazoxane supplementation. Prolongation of QT dispersion may not only represent a sensitive tool in identifying the first sign of anthracycline-induced cardiotoxicity, but it may serve also in identifying patients who are at risk of arrhythmic events. METHODS: Twenty untreated patients, 相似文献   

Effects of CD59 on antitumoral activities of phycocyanin from Spirulina platensis

The regulatory effect of phycocyanin (PC) from Spirulina platensis on cluster of differentiation 59 (CD59) gene expression of Hela cells and antitumoral mechanism of PC was investigated in this study. PC was purified by hydroxylapatite (HA) and sephacrylHR-200 gel-filtration columns chromatography. The molecular weight of PC was determined by SDS-PAGE electrophoresis. The CD59 cDNA was inserted into the eukaryotic expression plasmid pALTER-MAX, and the recombinant vector pALTER-MAX-CD59 was successfully constructed. By using cationic liposome (Lipfectamine-2000)-mediated transfection method, the recombinant plasmid pALTER-MAX-CD59 and the selective marker PcDNA were cotransfected into Hela cells and normal Chinese hamster ovary (CHO) cells. Stable positive cell clones were sorted out and disposed with different concentrates of PC. The expression of CD59 protein was determined by in situ hybridization, immunofluorescence and enzyme linked immunosorbent assay (ELISA). In addition, the effect of PC on the proliferation of Hela cells was determined by MTT method and the expression of Fas protein was by immunohistochemistry. Results showed that PC can promote the expression of CD59 protein in Hela cells, hold back it is reproductions of Hela cells, and moreover, a dosage effect was found between them. Namely, with the ascendance of PC concentration, the expression quantities of CD59 protein and apoptosis-inducing Fas protein increased and the multiplication activity of Hela cells declined, whereas PC was of no use to CD59 and Fas protein expression, and reproduction of normal CHO cells as well. Besides an imaginable antitumoral molecular immune mechanism of PC was brought forward and discussed.     

Modulated expression of cell surface molecules and in vivo outgrowth of modified melanoma cells

Modulation of cell surface molecules involved in immune recognition and cellular interactions (class I major histocompatibility complex or MHC-I, B7.1 or CD80, integrin alpha4 or CD49d, tetraspanins CD9, CD81) was examined in modified B16 melanoma cells displaying either inhibited IGF-I expression or transfected OVA encoding gene. It was shown that inhibiting IGF-I expression or inserting OVA encoding gene did not lead to modification relevant to the presence of MHC-I or B7.1. However downregulation of tetraspanin CD9 was observed in modified IGF-I but not in OVA encoding gene inserted melanoma cells. Expression of tetraspanin CD81 and integrin alpha4/CD49d remained unchanged. Inoculated into syngeneic recipients, the modified melanoma cells exhibited significant delayed outgrowth with a reduction in the percentage of lethal tumors observed essentially in hosts injected with inhibited IGF-I expression cells.     

Est–il trop tard pour entreprendre un traitement orthopédique pour scoliose idiopathique à Risser 4 ?

Orthopaedic treatment for idiopathic scoliosis in adolescence is indicated with a curve of > or =20 degrees and a Risser score< or =4, because progression of curve is low with Risser scores >4. We present the case of a young man with a left lumbar idiopathic scoliosis (T12-L4) with a curve of 10 degrees, which was stable from 13 years (Risser 0) to 16 years old (Risser 4). The scoliosis progressed quickly after a Risser score of 4 was achieved. The man had been wearing a lift on the left foot since he was 13, because of a leg length discrepancy, and had been under clinical and radiological monitoring. When the boy reached 17 years, the scoliosis rapidly progressed, to a curve of 22 degrees and a Risser score of >4. The scoliosis was effectively treated with a Boston brace. At 20 years, the Risser score was 5, and the left lumbar curve was 13 degrees after discontinuing the use of the brace. To our knowledge, no scientific reference indicates a time limit to orthopaedic treatment for idiopathic adolescent scoliosis. Despite the experts' recommendations, a brace might be indicated with a Risser score > or =4 to stop the progression of the curve.