老年人Ig,CIC和auto—Ab相互关系的研究

本文对不同年龄组健康人血清免疫球蛋白，循环免疫复合物和游离自身抗体的含量进行同步测定。结果发现，血清ＩｇＧ含量随增龄无明显改变，老年组ＩｇＡ明显高于青壮年组和老年前期组，而ＩｇＭ从４５岁便开始下降，老年人降低更为显著；老年组血清ＩｇＧ含量与ＣＩＣ－ＩｇＧ，ａｕｔｏ－Ａｂ－ＩｇＧ含量呈正相关。     

登革热循环免疫复合物特异性的检测分析

采用ＳＤＳ－聚丙烯凝胶电泳（ＳＤＳ－ＰＡＧＥ）和免疫转印技术对２８例登革热患者血清循环免疫复合物（ＣＩＣ）进行组份分析。结果显示在ＳＤＳ－ＰＡＧＥ电泳图谱上出现２０Ｋｕ、４６Ｋｕ及５７Ｋｕ３条主要条带。免疫识别结果表明登革热ＣＩＣ中存在特异性病毒抗原及ＩｇＧ、ＩｇＡ、ＩｇＭ抗体和补体Ｃ３组份。     

补硒对大骨节病病区居民红细胞免疫功能的影响

给大骨节病病区１３￣１５岁居民每日口服亚硒酸钠硒２００ｕｇ，１２周后测定红细胞硒含量和谷胱甘肽过氧化物酶（ＧＳＨ－ｐｘ）活性，红细胞免疫粘附（ＲＣＩＡ）功能，血清ＲＣＩＡ调节功能和循环免疫复合物（ＣＩＣ）含量，以探讨补硒对病区居民ＲＣＩＡ功能的影响。病区居民补硒后红细胞硒含量，ＧＳＨ－ｐｘ活性和红细胞Ｃ３ｂ受体（ＲＢＣ－Ｃ３ｂＲ）花环率明显提高，血清ＲＣＩＡ花环抑制率明显降低，但补硒对红细胞免疫复     

补硒对克山病病区居民红细胞免疫粘附及调节功能的影响

为探讨红细胞免疫与硒水平的关联，８６例克山病病区青少年分成３组，每日分别服硒酵母或亚硒酸钠２００μｇ或普通酵母片１２周后，测定其红细胞硒含量和谷胱甘肽过氧化物酶（ＧＳＨ－Ｐｘ）活性，红细胞免疫粘附（ＲＣＩＡ）功能，血清ＲＣＩＡ调节功能和循环免疫复合物（ＣＩＣ）含量，结果表明，两补硒组红细胞硒含量和ＧＳＨ－Ｐｘ活性明显提高，同时红细胞Ｃ３ｂＲ花环率明显升高，血清ＲＣＩＡ花环抑制率明显降低，但补硒对Ｉ     

幽门螺杆菌感染与冠心病发病的关系

目的 观察幽门螺杆菌感染与冠心病的关系及对脂质代血清免疫学的影响,探讨可能的发病机制。方法 ＥＬＩＳＡ法测定冠心病组（９４例）和对照组（４０例）血清ＨＰ抗体。同时应用全自动生化仪测定血清ＴＣ、ＴＧ、ＡｐｏＡ、ＡｐｏＢ含量,应用测定蛋白分析仪,散射比浊法测定血清Ｉｇ、ＩｇＡ、ＩｇＭ、Ｃ３、ＣＩＣ含量。结果 冠心病组血清ＨＰＩｇＧ一率明显高于对照组（５３．１９％ｖｓ２７．５％,Ｐ〈０．０１）急性心肌梗     

Ⅱ型糖尿病血管并发症与血浆脂蛋白及体液免疫水平的关系

本文测定了５４例Ⅱ型糖尿病（ＮＩＤＤＭ）病人（２０例有微血管病变、１８例有大血管病变、１６例无血管病变）及３３例正常人的血浆脂蛋白（ａ）［Ｌｐ（ａ）］、低密度脂蛋白胆固醇（ＬＤＬ－Ｃ）、循环免疫复合物（ＣＩＣ）、补体Ｃ３（Ｃ３）和免疫球蛋白。ＮＩＤＤＭ各组与正常对照组比较，ＬＤＬ－Ｃ、ＤＩＣ、Ｃ３、ＩｇＧ、ＩｇＡ水平均显著升高，ＩｇＭ显著下降。Ｌｐ（ａ）、ＣＩＣ在ＮＩＤＤＭ并发血管病变组均显著高于无血管病变组．ＮＩＤ－ＤＭ并发微血管病变组的ＣＩＣ水平又显著高于其大血管病变组。另外ＮＩＤＤＭ病人血浆Ｌｐ（ａ）、ＬＤＬ－Ｃ与ＣＩＣ水平呈显著正相关。提示ＮＩＤＤＭ病人的脂代谢异常及免疫异常与其血管并发症关系密切，脂代谢与免疫异常有内在联系。     

甲型肝炎患者抗－HAV－IgM特异性循环免疫复合物的检测及其动态变化

甲型肝炎患者抗－ＨＡＶ－ＩｇＭ特异性循环免疫复合物的检测及其动态变化郝春秋，阎荣，周永兴，陈龙邦，陈远鑫本文作者建立了检测抗－ＨＡＶ－ＩｇＭ特异性循环免疫复合物（ＳＣＩＣ）的聚乙二醇酶联免疫吸附法（ＰＥＧ－ＥＬＩＳＡ），对８３例急性黄疸型甲型病毒性肝...     

血吸虫感染鼠血清SEAIC水平与肝脏病变关系的动…

采用分离纯化的兔抗ＳＥＡ－ＩｇＧ以生物素－亲和素放大系统，用Ｃａｐｔｕｒｅ ＥＬＩＳＡ方法检测感染血吸虫鼠血清中抗ＳＥＡ循环免疫复合物（ＳＥＡＩＣ）水平在感染后各周的动态变化；并在观察肝脏病变的同时，采用图像分析技术，动态测定各周肝内虫卵肉芽肿的直径和面积。结果表明，血清ＳＥＡＩＣ在感染后４ｗｋ即可检出，６－７ｗｋ时达高峰，以后有所下降，但至实验观察结束时（１２ｗｋ）仍维持在较高水平。感染后４ｗｋ     

风湿性心脏病患者红细胞免疫功能的初步探讨

应用红细胞Ｃ３ｂ（ＲＢＣ－Ｃ３ｂ）受体花环试验及红细胞免疫复合物（ＲＢＣ－ＩＣ）花环试验，对６０例风湿性心脏病（简称风心病）患者及７１例正常人的红细胞免疫功能进行了对照研究。结果表明，风心病患者ＲＢＣ－Ｃ３ｂ受体花环率明显低于正常人（Ｐ＜０．０１），ＲＢＣ－ＩＣ花环率明显高于正常人（Ｐ＜０．００１），提示风心病发病与红细胞免疫功能异常有密切关系。风心病患者ＲＢＣ－Ｃ３ｂ受体花环率及ＲＢＣ－ＩＣ花环率与瓣膜损害的数量，无明显关系（Ｐ＞０．０５）。ＲＢＣ－ＩＣ花环率在中至重度心力衰竭组明显高于心功能正常及轻度心力衰竭组（Ｐ＜０．００１），ＲＢＣ－Ｃ３ｂ受体花环率两组无明显差异（Ｐ＞０．０５）。     

日本血吸虫31／32kDa循环免疫复合物的检测及其在疾病 …

检测血吸虫循环免疫复合物（ＣＩＣ）有助于提高疾病的检出率。利用抗血吸虫单克隆抗体Ｈ２２６和碱性磷酸酶标记的羊抗人ＩｇＧ（Ｆｃ）作捕捉ＥＬＩＳＡ，检测Ｅ要血吸虫病患者血清ＣＩＣ，其阳性检出率为９２．２％，其中，ＥＰＧ〈１００的病人阳性检出主继９０．０％，ＥＰＧ〉１００的病人阳性检出率为９５．５％，两者无显著性差异。由于羊抗人ＩｇＧ Ｆｃ段能与ＣＩＣ中人ＩｇＧ的Ｆｃ段特异性结合，因此不驻省去了常规分离     

Levels of soluble CD8 antigen and circulating immune complexes in intravenous drug abusers: relationships to HIV antibody serology

A total of 36 intravenous drug abusers (IVDA) were studied for circulating immune complexes (CIC) and serum soluble CD8 antigen (sCD8). None had symptoms or signs of AIDS-related complex or AIDS. sCD8 levels were significantly higher in 18 patients who had HIV antibody (Ab) compared with 18 patients who were HIV Ab negative (1640 +/- 578 virus 804 +/- 264 U/ml, p less than 0.0001). In HIV Ab+ patients but not in HIV Ab- patients, sCD8 levels significantly correlated with percentages and absolute numbers of activated CD3+DR+ peripheral blood mononuclear cells (p = 0.0024 and 0.0183, respectively). Also in HIV Ab+ patients, CIC levels were significantly greater for both anti-C3 binding (13.1 +/- 11.1 versus 2.9 +/- 3.4 micrograms/ml, p = 0.002) and C1q binding (23.5 +/- 20.2 versus 6.3 +/- 4.3 micrograms/ml, p = 0.001) CIC. Serum C4 concentrations were lower in the HIV Ab+ patient group (33.9 +/- 10.1 versus 41.6 +/- 12.4 mg/dL, p = 0.043). In the seropositive group, IgG levels were higher (2206 +/- 859 versus 1615 +/- 645 mg/dl) and total CD4 cell counts were lower (757 +/- 344 versus 1172 +/- 402 cells per mm3), but at a less significant level (p = 0.024 and 0.005, respectively), than that seen for sCD8 and C1q CIC differences. These results suggest that elevations of both the lymphocyte activation marker sCD8 and antigen nonspecific CIC characterize earlier stages of HIV infection in IVDA.     

Failure to find C1q-binding material and anti-IgG antibodies in ankylosing spondylitis.

C1q-binding immune complexes (C1C), anti-IgG antibodies (anti-IgG Ab), and complement levels were investigated in the serum of 37 patients with ankylosing spondylitis (AS). In all these studies the mean levels observed in patients with AS were similar to those in 31 normal subjects. Moreover, no significative difference in either CIC or anti-IgG Ab levels was observed when the patients were classified in different clinical forms according to the localisation (peripheral and central) or to the gravity (mild and severe) of the AS. In a parallel study increased CIC and anti-IgG Ab levels were found in most of the 81 patients with seropositive or seronegative rheumatoid arthritis.     

血脂异常对青年男性心肌梗死患者早、中期预后的影响

目的观察青年男性急性心肌梗死（acute myocardial infarction, AMI ）患者的临床特点及血脂异常对其1年内再发心血管事件的影响。方法以50例≤45岁的青年男性AMI患者作为青年组,按电脑随机数字表法抽取同期住院50例≥65岁的老年男性AMI患者作为老年组。观察两组临床特点,出院后第3、6、9、12个月复查血脂,随访1年内再发主要心血管事件及血脂浓度,并进行比较分析。结果青年组血脂异常检出率高于老年组[28％（14／50）讯8％（4／50）,P〈0．01]。青年组血脂浓度高于老年组（P〈0．05）,以血清甘油三酯浓度升高为主。青年组血清甘油三酯浓度高于老年组,差异有统计学意义[（170．384±101．12）mg／dL强（118．56±60．18）mg／dL,P〈0．011。药物调脂治疗后复查,青年组血清甘油三酯浓度降低最为显著,下降水平明显低于老年组,差异有统计学意义（42％慨12％,P〈0．05）。青年组1年内再发主要心血管事件发生率低于老年组,差异有统计学意义[36％（18／50）眠60％（30／50）,P〈0．05]。青年组心肌梗死后再发主要心血管事件时的血清三酰甘油浓度较入院时明显升高,差异有统计学意义[（175．07±94．79）mg／dL帆（115．19±61．22）rag／dL,P〈0．05]。结论（1）青年男性AMI患者的血脂水平高于老年组,其血脂异常以高三酰甘油为主。（2）调脂治疗后青年男性AMI患者1年内心血管事件的再发生率低于老年组,其血脂下降水平也明显低于老年组。（3）青年男性AMI患者随着血清三酰甘油浓度的升高再发主要心血管事件增加。     

Cytokine profiles in stem cell transplantation: possible use as a predictor of graft-versus-host disease

Graft-versus-host disease (GvHD) complicates many allogeneic stem cell transplants (alloSCT), and several factors are known to be associated with the development of GvHD besides human leucocyte antigen (HLA) incompatibility. We investigated whether changes in serum levels of soluble IL-2 receptor (sIL-2Ralpha), tumour necrosis factor-alpha (TNF-alpha), transforming growth factor-beta (TGF-beta), vascular endothelial growth factor (VEGF) and soluble Fas (sFas) correlated with the development of GvHD in patients undergoing SCT, and might thus be potentially of use to anticipate the development of GvHD, allowing early modification of immunosuppressive therapy.sIL2Ralpha and sFas levels were significantly raised in allograft, autograft (allo and auto) and non-graft groups compared to the normal controls (HC), but there was no statistical difference between the three patient groups. TNF-alpha was raised in the auto and allo groups and the non-graft patients compared to the HC group (median 4.37 pg/ml), but only reached significance in the allo group (median 6.02 pg/ml; p = 0.008) when this was compared with the non-graft patients. There was no significant difference in TGF-ss levels between any of the groups.The median serum VEGF levels were decreased in allo and auto patients compared to HC, (31 and 62 pg/ml versus 90 pg/ml, respectively), with a significant difference in the auto group (p = 0.007). VEGF levels were significantly lower in the auto versus the allo group (p = 0.008) and also in the auto versus the non-graft group (median 104 pg/ml; p = 0.011). When the allo group was divided into patients who developed GvHD and those who did not, serum VEGF levels were significantly higher in those with GvHD (p = 0.028).     

Spontaneous immunoglobulin synthesis by peripheral mononuclear cells in active rheumatoid arthritis

Summary Spontaneous production of immunoglobulins (Igs) by peripheral blood mononuclear cells (PBMC) in vitro was investigated to assess B cell activity in a group of 24 patients with rheumatoid arthritis (RA) with or without active joint disease and with or without rheumatoid vasculitis (RV) at the time of study. PBMC of patients with active arthritis (Ritchie index above 16) produced significantly more IgG and IgA than those of patients with inactive joint disease or those of 12 healthy controls. Enhanced production of IgG was found mainly among RA patients with concomitant RV, whereas markedly enhanced IgA production could also be found in patients without symptoms of RV. IgM production was only enhanced in two patients who had both active arthritis and RV. High production of IgG and IgA was probably due to increased numbers of Ig-secreting cells among freshly isolated PBMC, since the concentrations of Ig produced in vitro rose steadily, starting on day 0 and persisting throughout the entire culture period. Moreover, IgG and IgA concentrations measured after 7 days of culture showed significant correlations with the numbers of IgG- and IgA-containing plasma cells in PBMC on day 0. Comparison of the spontaneous production of Igs by PBMC with the levels of circulating immune complexes (CIC), showed that CIC levels were also significantly higher in active arthritis and in RV, but that there was no correlation between the CIC levels in individual patients and Ig production by their PBMC in vitro. This indicates that no direct relationship exists between the occurrence of high CIC levels in RA and the presence of a systemic B-cell hyperreactivity which had been suggested by the enhanced Ig production by PBMC.     

Cancer/testis antigen,Kita-Kyushu lung cancer antigen-1 and ABCD stratification for diagnosing gastric cancers

BACKGROUND The ABCD stratification[combination of serum pepsinogen(PG)levels and titers of antibody(immunoglobulin G,IgG)against Helicobacter pylori(H.pylori)]is effective for the classification of individuals at risk of developing gastric cancer(GC).The Kita–Kyushu lung cancer antigen-1(KK-LC-1)is a Cancer/Testis antigen frequently expressed in GC.AIM To evaluate the effectiveness of KK-LC-1 and ABCD stratification in the diagnosis of GC.METHODS We analyzed the gene expression of KK-LC-1 in surgical specimens obtained from GC tumors.The levels of serum PG I/PG II and IgG against H.pylori were measured.According to their serological status,the patients were classified into the four groups of the ABCD stratification.RESULTS Of the 77 examined patients,63(81.8%)expressed KK-LC-1.The IgG titers of H.pylori and PG II were significantly higher in patients expressing KK-LC-1 than those measured in patients not expressing KK-LC-1(P=0.0289 and P=0.0041,respectively).The expression of KK-LC-1 in group C[PG method(+)/H.pylori infection(+)]was as high as 93.9%high.KK-LC-1 was also detected in group A[-/-].CONCLUSION The KK-LC-1 expression in GC was associated with H.pylori infection and atrophic status,so that,KK-LC-1 may be a useful marker for the diagnosis of GC.     

Humoral and mucosal immunity in protection from natural respiratory syncytial virus infection in adults

Virus-specific nasal immunoglobulin (Ig) A and serum antibody titers in 67 respiratory syncytial virus (RSV)-infected adults were compared with titers in age-matched uninfected control subjects. Control subjects had significantly higher levels of nasal IgA and serum IgG to the RSV F, Ga, and Gb proteins than infected subjects. Serum neutralizing-antibody titers to group A and B RSV strains were also lower in infected subjects, although differences were not as large. Multivariate analysis found that low RSV-specific nasal IgA was an independently significant risk factor for RSV infection.     

行急诊经皮冠状动脉介入治疗的青年急性ST段抬高型心肌梗死患者的临床特点及住院期间预后分析

目的分析行急诊经皮冠状动脉介入治疗(PCI)的青年急性ST段抬高型心肌梗死(STEMI)患者的临床特征及住院期间预后。方法回顾性选取2017年11月-2019年5月在徐州医科大学附属医院心内科住院并诊断为STEMI且接受急诊PCI患者482例,根据年龄分为老年组(≥45岁,n=325)和青年组(<45岁,n=157)。比较两组患者一般资料、实验室检查指标、冠状动脉病变特征、PCI路径、穿刺并发症、梗死血管、支架个数、支架长度、住院期间预后及住院时间。结果青年组患者高血压、糖尿病、脑梗死者所占比例低于老年组,男性所占比例、体质指数(BMI)、有吸烟史者所占比例、有冠心病家族史者所占比例高于老年组(P<0.05)。青年组患者总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、尿酸、白细胞计数(WBC)高于老年组,高密度脂蛋白胆固醇(HDL-C)、脂蛋白、D-二聚体、超敏肌钙蛋白T(hs-TNT)、N末端脑钠肽前体(NT-proBNP)峰值低于老年组(P<0.05);两组患者肌酐、血糖、纤维蛋白原(FIB)比较,差异无统计学意义(P>0.05)。青年组患者3支病变及梗死相关动脉B1型、B2型、C型者所占比例低于老年组,1支病变及梗死相关动脉病变A型者所占比例高于老年组(P<0.05)。两组患者梗死血管比较,差异无统计学意义(P>0.05);青年组患者PCI入路为桡动脉者所占比例高于老年组,穿刺并发症发生率、支架个数低于老年组,支架长度短于老年组(P<0.05)。青年组患者心律失常发生率、心力衰竭发生率、病死率低于老年组,住院时间短于老年组(P<0.05)。结论青年STEMI患者与男性、肥胖、吸烟、冠心病家族史、血脂异常、高WBC、高尿酸有关,且与老年患者比较,青年患者多经桡动脉行PCI,穿刺并发症及植入支架少,支架长度短,多为单支病变,梗死血管多为左前降支(LAD),梗死相关动脉病变分型多为A型、B1型,住院期间预后较好且住院时间短。     

Elevated serum B lymphocyte stimulator levels in patients with systemic immune-based rheumatic diseases.

OBJECTIVE: To determine whether serum levels of B lymphocyte stimulator (BLyS) are elevated in patients with systemic immune-based rheumatic diseases and correlate with serum Ig levels and/or autoantibody titers. METHODS: Sera from 185 patients with various systemic immune-based rheumatic diseases (95 with systemic lupus erythematosus [SLE], 67 with rheumatoid arthritis [RA], 23 with other diagnoses) were assayed for BLyS and Ig. In 7 patients who required arthrocentesis of a swollen knee, coincident serum and synovial fluid samples were assayed for BLyS. Medical charts were retrospectively reviewed for elevated autoantibody titers and proteinuria within a 1-month period before or after collection of sera for BLyS and Ig determination. Sera concurrently collected from 48 normal healthy subjects served as controls. RESULTS: Serum BLyS levels were elevated in 38 of 185 patients (21%) and correlated significantly with serum IgG levels. Serum BLyS levels did not correlate with the patients' age, sex, race, or medications, but correlated positively with anti-double-stranded DNA antibody titers among SLE patients and with rheumatoid factor titers among seropositive RA patients. In contrast, serum BLyS levels correlated inversely with nephrotic-range proteinuria among SLE patients. In every case tested, BLyS levels in clinically inflamed synovial fluids were greater than those in simultaneously obtained sera. CONCLUSION: BLyS may be an important factor in driving polyclonal hypergammaglobulinemia and elevated autoantibody titers in patients with systemic immune-based rheumatic diseases. Local production of BLyS in the joints may contribute to joint pathology. Patients with elevated serum BLyS levels may be ideal candidates for therapeutic targeting of BLyS.     

氯沙坦对老年心力衰竭患者血清细胞因子的影响

目的观察老年心力衰竭患者应用血管紧张素Ⅱ受体拮抗剂(ARB)氯沙坦对血循环中炎性细胞因子的影响。方法64例老年心力衰竭患者(心衰组)随机分为常规治疗组(32例)与氯沙坦组(32例),另设正常对照组(20例)。检测治疗前后血清各炎性细胞因子浓度,并测定其左室射血分数(LVEF)。分析LVEF与细胞因子相关性。结果治疗前与对照组比较,心衰组的细胞因子含量明显升高(P<0·05,P<0·01),心衰组间比较也有明显差别(P<0·01)。氯沙坦组治疗后细胞因子显著下降与常规治疗组比较有显著差异(P<0·01),2组治疗后LVEF较治疗前均有改善。而治疗后氯沙坦组LVEF与细胞因子呈负相关。结论老年心衰患者存在着细胞因子的过度激活,ARB治疗可使血细胞因子浓度降低,并与LVEF改善呈负相关,可能为ARB改善心衰患者预后的重要机制之一。