非小细胞肺癌中Ezrin和CD44v6的表达及意义

目的 探讨非小细胞肺癌中Ezrin和CD44v6的表达及其与肺癌各种临床病理参数之间的关系.方法 采用免疫组化SP法检测55例非小细胞肺癌组织中Ezrin及CD44v6的表达.结果 Ezrin的表达程度与非小细胞肺癌的TNM分期(P=0.004)和淋巴结转移(P=0.003)密切相关; CD44v6的表达程度与非小细胞肺癌的TNM分期(P=0.012)和淋巴结转移(P=0.010)密切相关;Ezrin 和CD44v6两者在非小细胞肺癌组织中的表达呈正相关(r=0.568, P=0.000).结论 Ezrin和CD44v6与肺癌淋巴结转移和临床TNM分期密切相关,联合检测Ezrin和CD44v6有助于判断肺癌的预后.     

ADAM23、αvβ3在非小细胞肺癌中的表达及临床意义

目的研究ADAM23、αvβ3在非小细胞肺癌中的表达及其与患者临床病理特征的关系。方法应用免疫组化和RT-PCR方法检测52例非小细胞肺癌及其配对癌旁组织和8例良性病变组织中ADAM23、αvβ3的表达。结果非小细胞肺癌中ADAM23蛋白的阳性率(38.5%)低于癌旁组织(86.5%)及肺良性病变组织(87.5%)(P0.05),而αvβ3蛋白的阳性率(80.8%)高于癌旁组织(26.9%)及肺良性病变组(37.5%)(P0.05)。ADAM23蛋白在非小细胞肺癌中的表达与患者的年龄、性别、肿瘤大小以及组织学分型无关,而与分化程度、淋巴结转移和临床分期关系密切;αvβ3蛋白在非小细胞肺癌中的表达与患者的年龄、性别、组织学分型以及分化程度无关,而与肿瘤的大小、淋巴结转移和临床分期有关;RT-PCR结果显示AD-AM23mRNA在非小细胞肺癌中的表达与癌旁组织和肺良性病变组织无明显差异,而αv、β3在癌中的表达高于癌旁组织及肺良性病变组织;ADAM23和αvβ3的表达呈负相关(χ2=9.026,r=-0.417,P0.05)。结论 ADAM23在非小细胞肺癌中低表达,αvβ3表达增高,二者可能在肺癌的侵袭和转移中发挥重要作用,并且具有协同性。     

非小细胞肺癌MSCT征象与CD44v6、FHIT及p16表达间的临床意义

目的探讨非小细胞肺癌的MSCT征象与其生物行为,CD44v6、FHIT及p16表达间的关系。方法43例非小细胞肺癌病人术前一周内行MSCT平扫及增强扫描。所有的标本均经10%福尔马林液固定,石蜡包埋,采用SP(streptavidin peroxidase)法检测CD44v6,FHIT及p16的表达。实验数据经SPSS11.0统计软件包进行统计学处理。结果1.MSCT对诊断临近胸膜受侵及淋巴结转移与手术病理有较好的一致性。2.CD44v6在肺癌和癌旁组织中的表达差异有统计学意义(P<0.05)。在MSCT上表现为淋巴结转移和胸膜侵犯组与其对照组有显著性差异(P<0.05)。3.p16和FHIT在癌旁组织中的阳性表达明显高于肺癌组织,其差异具有统计学意义(P<0.05)。p16阳性表达率在MSCT上表现为淋巴结转移阳性组和周围胸膜侵犯阳性组,与相应阴性组相比差异具有统计学意义。FHIT在MSCT胸膜侵犯组与相应阴性组相比较,差异具有统计学意义(P<0.05)。结论1.CD44v6的异常高表达与NSCLC的临近结构侵犯和淋巴结转移具有相关性,提示其在肺癌的浸润和转移机制中起重要的作用。2.p16与FHIT在NSCLC中常表达缺失,作为两个抑癌基因,其下调表达参与了NSCLC的发生和发展过程。3.结合非小细胞肺癌的MSCT的表现及CD44v6、p16及FHIT的异常表达对选择理想的治疗方案具有重要的意义。     

TrkB/BDNF在非小细胞肺癌组织中的表达及临床意义

目的:探讨肿瘤标记物TrkB/BDNF在非小细胞肺癌癌组织中的表达及其临床意义。方法:采用免疫组化(SP法)和Realtime-PCR方法检测非小细胞肺癌组织和癌旁组织中TrkB/BDNF的mRNA表达水平,并分析其在相关临床因素间的差异。结果:非小细胞肺癌癌组织TrkB/BDNF表达阳性,且明显高于癌旁组织。TrkB/BDNFmRNA水平在有否脑转移和不同TNM分期之间存在明显差异(P<0.05);而在性别、年龄、吸烟、肿瘤大小、分化程度、病理组织学类型间无显著差异(P>0.05)。结论:TrkB/BDNF在非小细胞肺癌癌组织中高表达,并与其脑转移、TNM分期有关,两者可能在非小细胞肺癌的侵袭及转移(尤其脑转移)中发挥重要作用。     

非小细胞肺癌肿瘤组织干细胞标志物CD133的表达

背景：非小细胞肺癌肿瘤组织中干细胞标志物CD133表达会呈现出一定的变化,并与疾病的发生和发展存在一定的联系。目的：探讨非小细胞肺癌肿瘤组织干细胞标志物CD133的表达情况,分析其与临床病理因素以及预后之间的关系。方法：收集135例非小细胞肺癌组织标本和60例正常肺组织标本。采用免疫组织化学染色法检测两组标本CD133的表达,并分析非小细胞肺癌肿瘤组织中CD133蛋白的表达与临床病理因素之间的关系。结果与结论：①非小细胞肺癌组CD133蛋白阳性表达率显著高于正常对照组(P < 0.05)。②CD133蛋白阳性表达与非小细胞肺癌患者年龄、性别以及肿瘤大小、肿瘤位置、组织学类型无关(P > 0.05);随着非小细胞肺癌肿瘤组织分化越差,CD133蛋白阳性表达呈现出不断上升趋势(P < 0.05);CD133蛋白阳性表达率在不同临床分期以及淋巴结有无转移之间差异也有显著性意义(P < 0.05)。③CD133以及TNM分期是非小细胞肺癌患者预后独立影响因素(P < 0.05),CD133蛋白表达阳性组中位生存时间显著短于阴性组(P < 0.05)。以上结果表明CD133参与非小细胞肺癌的发生和发展以及浸润和转移,对疾病的进展以及预后判断有重要的临床意义。中国组织工程研究杂志出版内容重点：干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程     

非小细胞肺癌组织中MMP12、HMGB1的表达及其临床意义

目的：研究非小细胞肺癌中人巨噬细胞金属弹性蛋白酶（humanmacrophagemetalloelas-tase,HME,namelyMMP12）、高迁移率族蛋白B1（highmobilitygroupbox—B1,HMGB1）蛋白表达并探讨其与病理学分级、淋巴结转移等的关系,以及两者的相关性。方法：用免疫组化sP法分别检测53例非小细胞肺癌组织（其中肺鳞状细胞癌30例、肺腺癌23例）和20例癌旁组织中MMP12、HMGB1蛋白表达。结果：MMP12和HMGB1在非小细胞肺癌组织的阳性表达率分别为69．8％和5．4％,在癌旁组织中分别为15％和20％（P〈0．01）;肺鳞癌中MMP12阳性表达率86．6％高于腺癌组47．8％;MMP12和HMGB1表达在非小细胞肺癌中与淋巴结转移呈正相关（P〈0．05）;MMP12和HMGB1在非小细胞肺癌组织中表达成正相关（P〈0．01）。结论：MMP12和HMGB1可能在非小细胞肺癌患者的浸润、转移中起作用,联合检测有利于预后判断。     

STAT3、 Bcl-xL、 Bax和CyclinD1在非小细胞肺癌中的表达

目的：分析STAT3、 Bcl-xL、 Bax和CyclinD1在非小细胞肺癌和正常肺组织中的表达及关系, 以进一步探讨其与非小细胞肺癌发生发展的关系.方法：利用SABC免疫组织化学技术检测84例非小细胞肺癌组织及30例正常肺组织中STAT3、 Bcl-xL、 Bax和CyclinD1的表达.结果：（1）STAT3、 Bcl-xL和CyclinD1在非小细胞肺癌组织中的表达水平明显高于正常肺组织（P＜0.05）, Bax在非小细胞肺癌组织有一定表达, 但与其在正常肺组织的表达比较无统计学意义（P＞0.05）;（2）STAT3、 Bcl-xL表达水平与非小细胞肺癌组织学类型有关, 在腺癌组织中的表达明显高于鳞癌, 与肿瘤大小、组织分化程度、 TNM分期及淋巴结转移无关;（3）Bax、 CyclinD1的表达水平与与组织学类型、肿瘤大小、组织分化程度、 TNM分期及淋巴结转移无关（P＞0.05）.结论：STAT3、 Bcl-xL和CyclinD1可能在肺癌的发生发展中发挥重要作用, 由此可望寻找到新的非小细胞肺癌的诊断方法和治疗靶点.     

STAT5、VEGF和EGFR在非小细胞肺癌中表达的相关性研究

目的:检测信号转导与转录激活因子5(STAT5)、血管内皮生长因子(VEGF)和表皮生长因子受体(EGFR)在非小细胞肺癌(NSCLC)中的表达情况,探讨三者与NSCLC临床病理特征之间的关系及三者彼此的关系。方法:采用免疫组化(SP法)检测STAT5、VEGF和EGFR在68例NSCLC及26例癌旁正常对照组织中的表达情况。结果:(1)STAT5、VEGF及EGFR在NSCLC组织中的阳性表达明显高于肺正常组织(P<0.05);(2)STAT5的阳性表达与NSCLC组织学类型有关,在腺癌中的表达明显高于鳞癌,与组织分化程度、TNM分期及淋巴结转移无关;(3)VEGF的阳性表达与NSCLC的分化程度、淋巴结转移和TNM分期有关(P<0.01),与NSCLC的组织学类型无关(P>0.05);(4)EGFR的阳性表达与NSCLC的TNM分期和淋巴结转移有关(P<0.01),与NSCLC的组织学类型和分化程度无关(P>0.05);(5)Spearman相关分析显示STAT5、VEGF和EGFR在NSCLC中的阳性表达两两比较(秩和检验方法)均呈正相关。结论:STAT5、VEGF、EGFR可能在肺癌的发生、侵袭和转移中起重要的作用,抑制STAT5信号通路可望成为非小细胞肺癌的治疗靶点。     

非小细胞肺癌survivin、p53和COX-2蛋白的表达

目的探讨非小细胞肺癌组织中survivin、p53和环氧合酶-2（COX-2）蛋白表达及其在肺癌发生、分化程度、淋巴结转移以及预后评估中的意义。方法采用SP法免疫组化技术检测70例非小细胞肺癌组织中的survivin、p53和COX-2表达情况。结果survivin和COX-2阳性表达与肺非小细胞癌组织的分化程度、有无淋巴结转移及临床TNM分期有关（P〈0．01）；p53阳性表达与非小细胞肺癌组织的分化程度有关（P〈0．01）。同时发现，survivin、p53和COX-2（＋＋＋～＋＋＋＋）阳性表达率明显高于（＋～＋＋），差异有显著性（P〈0．01）。这3种抗体中在非小细胞肺癌中的阳性表达占76％。结论survivin、p53和COX-2的表达在非小细胞肺癌组织的浸润、转移和发展中具有重要意义，有助于对非小细胞肺癌的诊断及预后的评价。     

非小细胞肺癌中OPN和MMP-2的表达及意义

目的 观察骨桥蛋白(osteopontin,OPN)和基质金属蛋白酶-2(matrix metalloproteinase-2,MMP-2)在非小细胞肺癌中的表达,探讨OPN和MMP-2与非小细胞肺癌的相关性.方法 应用免疫组化MaxVision两步法检测89例非小细胞肺癌和30例癌旁正常肺组织中OPN和MMP-2的表达.结果 非小细胞肺癌组织中OPN和MMP-2的阳性率明显高于癌旁正常肺组织(P=0.000),非小细胞肺癌中OPN和MMP-2阳性率与病理分级、TNM临床分期和淋巴结转移有相关性(P<0.05),OPN阳性组的5年生存率明显低于OPN阴性组(P=0.016),MMP-2阳性组的5年生存率明显低于MMP-2阴性组(P=0.002),非小细胞肺癌中OPN和MMP-2的表达呈正相关(P=0.015).结论 OPN和MMP-2表达增高与非小细胞肺癌生物学特征存在一定相关性,检测OPN和MMP-2的表达可作为非小细胞肺癌的生物学行为和判断预后的指标.     

Schizophrenia in a North Swedish geographical isolate, 1900–1977. Epidemiology, genetics and biochemistry

Over 200 schizophrenic patients belonging to three major and interrelated pedigree complexes have been investigated over the past 30 years in a North Swedish geographically isolated population, presently numbering about 6,000. An intensive investigation of a number of biochemical correlates and genetic markers in a few selected families belonging to one of the major pedigrees has indicated new strategies for the current research program.
Schizophrenia, as defined operationally, is significantly associated with decreased activities of two enzymes (1) blood platelet monoamine oxidase, (2) plasma dopamine-β-hydroxylase, and (3) with the genetic marker Gc² (group specific antigen). Both enzymes are subject to genetic variation. A positive score for linkage between schizophrenia and low plasma DBH activity has been calculated, but, so far, available data are insufficient for discrimination between linkage and partial contribution of genetically controlled low plasma DBH to the pathogenesis of the disease. Alternatively, both mechanisms could be involved.
As a model for continued research, schizophrenia is explained as based on a double dominant-recessive genotype (Aabb), representing a vulnerability which in about 50 % of cases develops into clinical schizophrenia. It is suggested that the dominant mutation (A) operates on or affects MAO activity, and that the recessive genotype (bb) is instrumental in low variates of DBH activity and very likely such variates within the normal range of physiological variation. Moreover, it is suggested that the combined effects of MAO- and DBH-reduced efficiency on the metabolism of e.g. dopamine could be an essential pathogenic mechanism for the schizophrenic illness which is segregating in this population.     

HLA in North Colombia Chimila Amerindians

HLA-A,-B,-C,-DRB1 and -DQB1 alleles have been studied in Chimila Amerindians from Sabana de San Angel (North Colombian Coast) by using high resolution molecular typing. A frequent extended haplotype was found:HLA-A*24:02-B*51:10-C*15:02-BRB1*04:07-DQB1*03:02 (28.7%) which has also been described in Amerinndian Mayos Mexican population (Mexico, California Gulf, Pacific Ocean). Other haplotypes had already been found in Amerindians from Mexico (Pacific and Atlantic Coast), Peru (highlands and Amazon Basin), Bolivia and North USA. A geographic pattern according to HLA allele or haplotype frequencies is lacking in Amerindians, as already known. Also, five new extended haplotypes were found in Chimila Amerindians. Their HLA-A*24:02 high frequencies characteristic is shared with aboriginal populations of Taiwan; also, HLA-C*01:02 high frequencies are found in New Zealand Maoris, New Caledonians and Kimberly Aborigines from Australia. Finally, this study may show a model of evolutionary factors acting and rising one HLA allele frequency (-A*24:02), but not in others that belong to the same or different HLA loci.     

Renal dysplasia and asplenia in two sibs

A family is reported in which two sibs, one male and the other female, both died within 24 hours of birth with enlarged polycystic kidneys. Postmortem histology in the second child showed gross renal dysplasia. In both children the pancreas was enlarged, nodular and cystic but the liver appeared macroscopically normal. In the second child, histological examination confirmed pancreatic fibrosis with cystic dilation of ducts, but showed portal fibrosis with bile duct proliferation in the liver.
This combination of findings is very reminiscent of those in a girl and her brother reported by Ivemark et al. (1959). The children reported here also showed absence or hypoplasia of the spleen, cardiac anomalies and other features of the Ivemark syndrome (Ivemark 1955), a quite different, usually sporadic, congenital disorder. It is suggested that the children described here have a distinct lethal congenital disorder, probably inherited in an autosomal recessive manner.     

The universal muscular chamber. A basic unit of the genitourinary, cardiovascular, gastro-intestinal, skeletal, cutaneous, respiratory and other systems, endocameral hypertension; and spasm, the key to their idiopathic diseases and arthropathies

Starting with the integument, we see many organs are contractile sacs or multiples thereof, which tubes or bags constitute the major part of the entire body. Recognition of this basic unit and its characteristics sheds new light, individually and collectively, on many disorders previously considered unrelated. Muscular tears and perforations develop in the walls of these chambers, being no way peculiar to those organs, wherein, hydrochloric acid occurs. So, it is not necessary to explain the absence of excessive acid from patients who exhibit holes in the gastric, uterine, aortic, duodenal, rectal, pulmonary, retina, and other walls. Muscle, not acid is the great common factor relating idiopathic disorders in the gastrointestinal tract to each other and to similar diseases in other systems. When the units are linked together, the lesions tend to appear as arthropathies, i.e. at the joints. Rephrasing common-place observations, frees us from conventional, conceptual cul-de-sacs. An observation is only as good as its interpretation, so all possibilities must be considered, otherwise, we will remain blinded by our misconceptions.     

Der Einfluß von Nahrungsmitteln und Rauchen auf die klinisch-chemische Diagnostik von Phäochromozytom,Neuroblastom und Karzinoid-Syndrom

Zusammenfassung Der Einfluß von verschiedenen Nahrungsmitteln auf Methoden zur Bestimmung von Adrenalin (AD), Noradrenalin (NA), Vanillinmandelsäure (VMS), Metanephrinen (MN), Homovanillinsäure (HVS) und 5-Hydroxyindolessigsäure (5-HIE) im 24 h-Harn zur Diagnose des Phäochromozytoms bzw. Karzinoid-Syndroms wurde untersucht. Die in die Untersuchung einbezogenen Nahrungsmittel waren: Tee, Kaffee, Mandeln, Ananas, Käse, Walnüsse, Vanillepudding, Bananen, Tomaten und Milchschokolade. Außerdem wurde der Einfluß des Zigarettenrauchens auf die Bestimmung von AD, NA, VMS und MN untersucht.Walnüsse führten zu einer starken Erhöhung der 5-HIE-Ausscheidung. Bananen erhöhten die Ausscheidung von AD, NA, VMS, MN und 5-HIE. Kaffee und Ananas bewirkten eine geringe Zunahme der MN-Werte. Rauchen von 20–30 Zigaretten/Tag beeinflußte keine der vier Variablen.Wenn die beschriebenen Methoden benutzt werden, sollte lediglich auf den Verzehr von Bananen und Walnüssen vor und während der Harnsammelperioden verzichtet werden, da die oberen Normgrenzen im Harn überschritten werden könnten. Ein Verzicht auf Kaffee und Ananas in normalen Mengen ist nicht erforderlich. Es besteht kein Anlaß, weiterhin die bisherigen umfangreichen Restriktionen der übrigen Nahrungsmittel beizubehalten.     

A comparative study of the effects of dimebon,obsidan, finoptin,and cordaron on the functional state of ischemic focus and size of necrotic zone in experimental myocardial infarction

Dimebon, an antihistamine agent, exerts a moderate antianginal effect, improving the function of ischemic focus in the myocardium and decreasing the necrotic zone in experimental myocardial infarction. Dimebon is less active than obsidan, finoptin (except for the size of the necrotic zone), and cordaron. Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 122, No. 12, pp. 642–644, December, 1996     

Effects of sex steroid hormones on lipid peroxidation and glutathione antioxidant system in rat skin

Effects of estradiol and testosterone on the intensity of lipid peroxidation and contents of glutathione redox system components in the dermis and epidermis of rat skin were studied. Only estradiol induced considerable dose-dependent and tissue-specific biphasic antioxidant effects on the skin. Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 128, No. 12, pp. 663–666, December, 1999     

Adhesion and growth of CaCo2 cells on surface-modified PEEK substrata

A series of surface-functionalized poly(ether ether ketone) (PEEK) films has been prepared by selective wet-chemistry; they are hydroxylated polymer (PEEK-OH) obtained by reduction, aminated polymer (PEEK-[]-NH2) prepared by coupling a diisocyanate reagent to PEEKOH (PEEK-[]-NCO) followed by hydrolysis, and carboxylated and aminocarboxylated polymers (PEEK-[]-GABA and PEEK-Lysine) resulting from the coupling of aminoacids to PEEK-[]-NCO. The aminated and carboxylated substrata promoted the adhesion and growth of CaCo2 cells in the presence of serum. Fibronectin (FN), an extra-cellular matrix protein, has been covalently fixed and/or adsorbed on various PEEK substrata, in the presence or not of a polymeric surfactant (Pluronic F68). The performances of the FN-grafted substrata (PEEK-[]-FN(1) and PEEK-[]-FN(2)) were significantly higher than those of reference substrata simply coated with FN (PEEK-OH(+FN)(1) and (2), PEEK-[]-NH2(+FN)(1) and (2)), considering the adhesion and spreading of CaCo2 cells in the absence of serum. Moreover, the stability of the adherent cells on the FN-adsorbed substrata dramatically depended on the experimental conditions applied during the PEEK coating with FN.