贫血患儿红细胞免疫功能观察

为了解贫血患儿的红细胞免疫功能,对 ８５例贫血患儿（缺铁性贫血 ２９例、急性白血病 ２６例、地中海贫血 １８例、再生障碍性贫血 １２例）进行了红细胞 Ｃ３ｂ受体花环率（ＲＢＣ－Ｃ３ｂＲＲ）和红细胞免疫复合物花环率（ＲＢＣ－ＩＣＲ）测定。结果显示所有贫血患儿ＲＢＣ－Ｃ３ｂＲＲ均显著低于对照组儿童（Ｐ＜０．０１）,缺铁性贫血和再生障碍性贫血患儿 ＲＢＣ－ＩＣＲ与对照组比较无明显差异（Ｐ＞０．０５）,急性白血病患儿 ＲＢＣ－ＩＣＲ高于对照组（Ｐ＜０．０５）,地中海贫血患儿 ＲＢＣ－ＩＣＲ则显著高于对照组（Ｐ＜０．０１）。贫血患儿容易感染可能与红细胞免疫功能低下有关。     

围生期新生儿红细胞免疫功能探讨

本文利用红细胞Ｃ３ｂ受体花环（ＲＢＣ－Ｃ３ｂＲＲ）与红细胞免疫复合物花环（ＲＢＣ－ＩＣＲ）试验对１００例围生期新生儿红细胞免疫功能进行测定。发现出生第１天围生期儿ＲＢＣ－Ｃ３ｂＲＲ明显增高，第２天开始下降并持续稳定至第７天，低出生体重儿ＲＢＣ－ＩＣＲ增高；分娩时情况不能使红细胞免疫功能发生改变。     

新生儿脐血红细胞免疫功能的检测

对新生儿脐血红细胞免疫功能进行检测，发现：（１）足月新生儿脐血组红细胞Ｃ３ｂ受体花环率和和红细胞免疫复合物花环率均明显高于正常儿童组和成人组，而后两者则无差异。（２）男女新生儿脐血组ＲＢＣ－Ｃ３ｂＲＲ和ＲＢＣ－ＩＣＲ两者的均无差异。     

新生儿感染性疾病红细胞免疫功能及SOD的变化

对５种临床常见的新生儿感染性疾病（败血症、肺炎、脐炎、臀红、鹅口疮）的红细胞Ｃ３ｂ受体花环率（ＲＢＣ－Ｃ３ｂＲＲ）、免疫复合物花环率（ＲＢＣ－ＩＣＲ）、血清中红细胞免疫粘附促进因子（ＲＦＥＲ）及抑制因子（ＲＦＩＲ）以及红细胞超氧化物歧化酶（ＳＯＤ）的活性进行了检测，结果表明红细胞免疫功能及ＳＯＤ的变化与感染的严重程度及疾病的不同阶段密切相关。     

癫痫患儿红细胞免疫功能的研究

目的 探讨红细胞免疫粘附功能与癫痫发作的关系。方法 采用酵母菌花环试验法对７０例癫痫患儿及３０例健康儿童（对照组）进行红细胞（Ｃ３ｂ（ＲＢＣ－Ｃ３ｂ）受体花环率及红细胞免疫复合物ＲＢＣ－ＩＣ）花环率检测,并进行比较。结果（１）癫痫组ＲＢＣ－Ｃ３ｂ受体花环率明显地姐;ＲＢＣ－ＩＣ花环率明显高于对照组;（２）使用抗癫痫药物组患儿ＲＢＣ－Ｃ３ｂ受体花环率明显高于未使用抗癫痫药物组,ＲＢＣ－ＩＣ花环率两组     

川崎病患儿红细胞补体Ⅰ活性及IgE变化

本文检测了１７例川崎病（ＫＤ）患者红细胞补体Ⅰ（ＣＲ－Ⅰ）活性及其调节因子、血清ＩｇＥ水平,并对上述指标进行探讨和分析。对象和方法一、对象　１７例ＫＤ患儿,男１１例,女６例,年龄６ｍｏ～５ａ,符合川崎病诊断标准［１］。１５例健康儿作对照组,平均年龄３ａ５ｍｏ。二、方法　红细胞ＣＲ－Ⅰ活性及其调节因子测定　红细胞Ｃ３ｂ受体花环率（ＲＢＣ－Ｃ３ｂＲＲ）、红细胞免疫复合物花环率（ＲＢＣ－ＩＣＲ）、红细胞免疫促进因子（红细胞Ｃ３ｂ受体花环促进率,ＲＦＥＲ）、红细胞免疫抑制因子（红细胞Ｃ３ｂ受体花环抑制率…     

肾病患儿红细胞补体受体Ⅰ活性及血浆脂质过氧化物水平改变及临床意义

对２５例肾病综合征（ＮＳ）患儿的红细胞补体受体Ⅰ（ＣＲ－Ⅰ）活性及其调节因子、血浆脂质过氧化物（ＬＰＯ）水平进行检测。结果显示ＮＳ患儿红细胞Ｃ３ｂ受体花环率（ＲＢＣ－Ｃ３ｂＲＲ）、红细胞免疫复合物花环率（ＲＢＣ－ＩＣＲ）、红细胞免疫粘附肿瘤细胞能力（ＲＢＣ－ＣａＲ）、红细胞免疫促进因子（ＲＦＥＲ）均低于对照组（Ｐ＜００１），红细胞免疫抑制因子（ＲＦＩＲ）及血浆ＬＰＯ高于对照组（Ｐ＜００１）。提示ＮＳ患儿存在原发性红细胞免疫功能低下，并且与红细胞免疫调节功能紊乱及血浆ＬＰＯ水平有关     

原发性肾病综合征红细胞免疫功能的初步观察

为了解肾病综合征（ＮＳ）患儿的红细胞免疫功能，对３７例原发性ＮＳ患儿红细胞免疫功能进行检测，同时对其中２８例进行了治疗前后动态观察。结果显示：（１）单纯性ＮＳ活动期红细胞Ｃ３ｂ受体花环率（Ｅ－Ｃ３ｂＲＲ）显著降低，血清红细胞免疫粘附抑制率（ＥＩＡＩＲ）显著增高；缓解期Ｅ－Ｃ３ｂＲＲ仍低于对照组；Ｅ－Ｃ３ｂＲＲ降低与Ｔ细胞亚群变化密切相关；（２）肾炎性ＮＳ活动期Ｅ－Ｃ３ｂＲＲ和血清红细胞免疫粘附促进率（ＥＩＡＥＲ）显著降低，红细胞免疫复合物花环率（Ｅ－ＩＣＲ）和ＥＩＡＩＲ明显增高；缓解期皆恢复正常；（３）ＮＳ患儿活动期红细胞免疫功能变化与激素治疗反应无关。结果提示单纯性和肾炎性ＮＳ存在不同的红细胞免疫功能改变，后者在ＮＳ发病机制中可能起重要作用。     

新生儿红细胞免疫功能观察：附48例分析

本文通过对４８例正常新生儿、２１例儿童和４１例成人红细胞免疫粘附生，包括Ｃ３ｂ受体花环（Ｅ－ＲＲ）和免疫复合物花环（Ｅ－ＩＣＲ）及血清循环免疫复合物的对照研究，发现新生儿Ｅ－ＲＲ显著高于成人和儿童，Ｅ－ＩＣＲ则低于成人，血清ＣＩＣ阳性率以新生儿最高。研究结果可能体现了新生儿红细胞免疫的特征。     

系膜增生性肾小球肾炎红细胞和白细胞免疫粘附功能及其相关性的研究

为从红细胞免疫角度探讨系膜增生性肾小球肾炎（ＭｓＰＧＮ）患儿的免疫发病机制，用郭峰法检测了３１例ＭｓＰＧＮ的红细胞和白细胞免疫粘附功能，并进行比较研究。结果提示：（１）作为检测红细胞免疫粘附功能的红细胞Ｃ３ｂ受体花环经（ＲＣＲ）和肿瘤红细胞花环率（ＴＲＲ）均较对照组明显降低，红细胞免疫复合物花环率（ＲＩＣＲ）差异不显著。（２）作为检测白细胞免疫功能的肿瘤料花环率（ＴＮＲ）和肿瘤淋巴细胞花环率（ＴＬ     

PLASMA AND RED BLOOD CELL FOLATE IN BREASTFED INFANTS

Abstract. We have studied growth, red blood cell status and folate concentrations in plasma and red cells in a group of 35 breastfed infants during the first year of life. Folic acid supplementation was not given to the mothers during pregnancy or lactation, and none of them developed megaloblastic anaemia. The growth and red blood cell status of the infants were both normal. At birth, and throughout the period of observation, the folate concentrations in plasma and red cells were significantly higher than in the adult reference material. A positive correlation between plasma and red cell folate was demonstrated. During the latter part of pregnancy and lactation the foetuses and infants seem to be protected against folate deficiency. We regard the folate status of normal breastfed infants as optimal. The optimal supply of the vitamin in artificial nutrition should be the amount of folate necessary to maintain plasma and red cell folate concentrations similar to those found in breastfed infants.     

Red blood cell transfusion in pediatric patients with severe chronic anemia: How slow is necessary?

Historic practice recommends slow transfusion for children with chronic anemia and hemoglobin less than 5.0 g/dl due to the theoretical risk of transfusion‐associated circulatory overload (TACO). In our pediatric intensive care unit (PICU), we have been utilizing a more liberal transfusion practice in patients without underlying cardiopulmonary disease, and a faster transfusion rate appears safe in this population. Rate of transfusion must be based on multiple factors including convenience, timeliness of procedures and transport to an appropriate care facility, risk of alloimmunization and wastage of blood, stress for the family, and need for PICU monitoring. Pediatr Blood Cancer 2012; 58: 466–468. © 2011 Wiley Periodicals, Inc.     

Most reliable indices in differentiation between thalassemia trait and iron deficiency anemia

BACKGROUND: Iron deficiency anemia (IDA) and thalassemia trait (TT) are the most common forms of microcytic anemia. Some discrimination indices calculated from red blood cell indices are defined and used for rapid discrimination between TT and IDA. However, there has been no study carried out in which the validity of all of the defined indices are compared in the same patient groups. Youden's index is the most reliable method by which to measure the validity of a particular technique, because it takes into account both sensitivity and specificity. METHODS: We calculated eight discrimination indices (Mentzer Index, England and Fraser Index, Srivastava Index, Green and King Index, Shine and Lal Index, red blood cell (RBC) count, red blood cell distribution width and red blood cell blood distribution width index (RDWI)) in 26 patients with IDA and in 37 patients with beta TT (betaTT). We determined the number of correctly identified patients by using each discrimination index. We also calculated sensitivity, specificity, positive and negative predictive value and Youden's index of each discrimination index. RESULTS: None of the discrimination indices showed a sensitivity and specificity of 100%. Youden's indices of RBC count and RDWI were the highest with the value of 82 and 80%, respectively. Ninety percent and 92% of the patients were correctly identified with RBC and RDWI, respectively. CONCLUSIONS: Red blood cell count and RDWI are the most reliable discrimination indices in differentiation between betaTT and IDA.     

Nucleated red blood cells in preterm infants who have necrotizing enterocolitis

Absolute nucleated red blood cell counts for 23 preterm newborn infants who subsequently had development of necrotizing enterocolitis were significantly higher than for 23 control infants. These infants may have been exposed to relative intrauterine hypoxemia, a possible risk factor for the development of necrotizing enterocolitis.     

STUDIES ON ERYTHRO-KINETICS IN INFANCY:XII. Survival in Adult Recipients of Cord Blood Red Cells Labelled in Vitro with Di-isopropyl fluorophosphonate (DF32P)

Cord blood red cells from 8 full-term infants were labelled in vitro with di-iso-propylfluorophos-phonate (DF³²P) and transfused into 8 adult recipients. The disappearance of the labelled cells was slightly curvilinear with a rate of 1.0–1.5% per day during the first month after transfusion and 0.7-1.0% per day during the following month. The data are discussed with reference to earlier studies and it is concluded that cord blood red cells from full-term infants disappear from the circulation of adult recipients in much the same way as from the circulation of newborn infants. The finding favours the hypothesis that “intrinsic” rather than “extrinsic” factors are likely to cause the difference in life span between foctal and adult red cells.     

Practical guide to red blood cell transfusion in paediatrics

Red cell transfusion is common in paediatric practice and indicated in haemorrhagic shock, anaemia and certain inherited haematological diseases. As with other blood products there are risks associated with their administration and improper use. Extensive national and local guidance is available in the UK in order to maintain safe transfusion practice. This article summarises the rationale behind red cell transfusion and offers a practical guide to clinical decision making in the acute hospital setting.     

A practical guide to red blood cell transfusion in children

Red cell transfusion is common in paediatric practice and indicated in haemorrhagic shock, anaemia and certain inherited haematological diseases. As with other blood products there are risks associated with their administration and improper use. Extensive guidance is available in the UK in order to maintain adequate haemovigilance and safe transfusion practice. This article summarises the rationale behind red cell transfusion and offers a practical guide to clinical decision making in the acute hospital setting.