非胰岛素依赖型糖尿病患者红细胞膜ATPase活性改变及其影响因素

目的探讨非胰岛素依赖型糖尿病（ＮＩＤＤＭ）患者红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰａｓｅ及Ｃａ２＋－ＡＴ－Ｐａｓｅ活性改变的影响因素。方法测定７７例ＮＩＤＤＭ患者和５０例正常人血糖、总胆固醇（ＴＣ）、甘油三酯（ＴＧ）、高密度脂蛋白胆固醇（ＨＤＬＣ）、脂质过氧化物（ＬＰＯ）、谷胱甘肽（ＧＳＨ）、糖化血红蛋白（ＨｂＡｌｃ）、超氧化物歧化酶（ＳＯＤ）、谷胱甘肽过氧化物酶（ＧＳＨＰＸ）、红细胞膜Ｎａ＋－Ｋ＋－ＡＴ－Ｐａｓｅ和Ｃａ２＋－ＡＴＰａｓｅ活性。ｔ检验、直线相关分析和多元逐步回归分析。结果ＮＩＤＤＭ组血糖、ＨｂＡｌｃ、ＴＣ、ＴＧ、ＴＣ／ＨＤＬＣ、ＬＰＯ显著高于对照组（Ｐ＜０．０１），ＨＤＬＣ、ＧＳＨ、ＳＯＤ、ＧＳＨＰＸ、红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰａｓｅ和Ｃａ２＋－ＡＴＰａｓｅ活性低于对照组（除ＧＳＨ的Ｐ＜０．０５外，其他Ｐ＜０．０１）；不同ＨｂＡｌｃ、ＴＣ／ＨＤＬＣ、ＧＳＨ、ＬＰＯ、ＴＣ组的红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰａｓｅ活性有显著性差别。红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰａｓｅ活性＝１２．８０＋０．２７（ＧＳＨ）－０．１２（ＬＰＯ）－０．０９（ＴＣ／ＨＤＬＣ），红细胞胞膜Ｃａ２＋－ＡＴＰａｓｅ活性＝１０８．２０＋１．     

胰岛素依赖型糖尿病起病年龄相关的HLA－DQA1遗传异质性

比较３组起病年龄不同的胰岛素依赖型糖尿病（ＩＤＤＭ）病人（Ａ组≤１４岁，Ｂ组１５～３０岁，Ｃ组≥３１岁）其ＨＬＡ－ＤＱＡ１链５２位精氨酸（Ａｒｇ）与ＩＤＤＭ易感性之间的关系。结果显示，Ａ组ＨＬＡ－ＤＱＡ１链５２位Ａｒｇ（＋）等位基因频率为８７．５％，明显高于对照组（５３．９％，Ｐ＜０．０５，ＲＲ＝５．９８）及Ｂ组和Ｃ组（Ｐ＜０．０５）；Ａ组ＨＬＡ－ＤＱＡ１链５２Ａｒｇ（＋）／Ａｒｇ（＋）表现型的频率为７５％，明显高于Ｃ组（２３．１％，Ｐ＜０．０５）。本文提示：ＨＬＡ－ＤＱＡ１链５２位Ａｒｇ与ＩＤＤＭ易感性之间的关系存在着起病年龄相关的异质性，有必要进一步研究以阐明ＩＤＤＭ的免疫遗传学本质。     

合并与不合并高血压非胰岛素依赖型糖尿病患者血清胰岛素、C-肽水平比较分析

本文对非胰岛素依赖型糖尿病（ＮＩＤＤＭ）合并高血压１７例与不合并高血压４６例在葡萄糖刺激试验前后的血清胰岛素、Ｃ－肽水平、血糖／胰岛素、胰岛素／Ｃ－肽比值进行比较分析，结果发现合并高血压组胰岛素、胰岛素／Ｃ－肽比值明显高于血压正常组（Ｐ＜０．０１），而血糖／胰岛素比值明显降低（Ｐ＜０．０５）。表明ＮＩＤＤＭ合并高血压患者有较高的胰岛素血症。其机理主要是肝脏对胰岛素降解率下降或（和）血中存在较多的胰岛素原所致。     

糖尿病病人红细胞免疫功能与膜脂质成分的关系

①目的探讨非胰岛素依赖性糖尿病（ＮＩＤＤＭ）病人红细胞免疫功能变化与红细胞膜脂质成分的关系。②方法对５４例ＮＩＤＤＭ病人进行了红细胞免疫功能检测，同时也检测了红细胞膜脂质成分的变化。③结果ＮＩＤＤＭ病人红细胞Ｃ３ｂ受体花环率（Ｅ－Ｃ３ｂＲＲ）明显降低（ｔ＝３．６６１，Ｐ＜０．００１），红细胞膜胆固醇（Ｃｈ）、胆固醇／磷脂（Ｃｈ／ＰＬ）和丙二醛（ＭＤＡ）明显增高，与对照组比较，差异有极显著性（ｔ＝３．５２８～３．７９４，Ｐ＜０．００１），ＰＬ明显低于对照组（ｔ＝３．６２０，Ｐ＜０．００１），有血管病变者变化更明显；ＮＩＤＤＭ病人Ｅ－Ｃ３ｂＲＲ与Ｃｈ，Ｃｈ／ＰＬ和ＭＤＡ呈负相关（ｒ＝－０．２７６～－０．６５３，Ｐ＜０．０５～０．０１），与ＰＬ呈正相关（ｒ＝０．３１６，Ｐ＜０．０５），以Ｃｈ／ＰＬ和ＭＤＡ升高与红细胞免疫功能降低关系更密切。④结论ＮＩＤＤＭ病人红细胞膜脂质成分异常可能是红细胞免疫功能低下的重要原因之一。     

非胰岛素依赖型糖尿病患者血清生长激素的昼夜变化

为探讨非胰岛素依赖型糖尿病（ＮＩＤＤＭ）患者血清生长激素昼夜变化，测定３４例ＮＩＤＤＭ患者血清生长激素０：００，８：００和１６：００值，结果ＮＩＤＤＭ患者生长激素昼夜变化与正常人无显著性差异（均Ｐ〉０．０５）。且生长激素０：００值与空腹血糖８：００值与胰岛素释放试验１ｈ值０：００值与空腹Ｃ肽值均无显著相关性（均Ｐ〉０．０５）。     

心肌梗塞合并糖尿病患者血管紧张素转换酶基因多态性分析

采用ＰＣＲ技术对４４例非胰岛素依赖型糖尿病（ＮＩＤＤＭ）患者，３１例ＮＩＤＤＭ合并心肌梗塞（ＭＩ）患者及１３２例正常对照组的血管紧张素转换酶（ＡＣＥ）基因插入／缺失（Ｉ／Ｄ）多态进行探测。结果：ＮＩＤＤＭ合并ＭＩ组ＡＣＥ基因Ｉ／Ｄ多态中的缺失型（ＤＤ）频率（０．４２）明显高于ＮＩＤＤＭ组（０．１４，Ｐ＜０．０５）及正常对照组（０．１７，Ｐ＜０．０５），正常对照组与单纯ＮＩＤＤＭ组ＡＣＥ基因Ｉ／Ｄ多态基因型分布比例相近似。结果提示：ＮＩＤＤＭ的发生与ＡＣＥ基因Ｉ／Ｄ多态无关，ＡＣＥ基因多态中ＤＤ型是ＮＩＤＤＭ患者心肌梗塞发病的危险因素之一。     

94例冠心病,93例糖尿病患者血脂及载脂蛋白分析

目的：探讨甘油三酯（ＴＧ）、载脂蛋白Ｂ（ＡｐｏＢ）与非胰岛素依赖型糖尿病（ＮＩＤＤＭ）和冠心病（ＣＨＤ）的关系。方法：对９４例ＣＨＤ、９３例ＣＨＤ＋ＮＩＤＤＭ患者及１００例正常人的血脂、脂蛋白及载脂蛋白进行分析对比，并对ＡｐｏＢ与ＣＨＤ的关系进行多因素ｌｏｇｉｓｔｉｃ逐步回归分析。结果：ＣＨＤ组及ＣＨＤ＋ＮＩＤＤＭ组与正常对照组比较，各项血脂均有显著性差异（Ｐ＜００１），ＴＧ、ＡｐｏＢ的异常检出率高于其它项血脂（Ｐ＜００５）；ＣＨＤ＋ＮＩＤＤＭ组与单纯ＣＨＤ组比较，ＴＧ、ＡｐｏＢ有显著性差异（Ｐ＜００１）；ＡｐｏＢ与ＣＨＤ发病危险呈密切正相关（ＯＲ＝１９６１，９５％可信区间１６８３１～２２４２２，Ｐ＝０００５７）。结论：在ＣＨＤ的发病因素中，脂质代谢异常起着极其重要的作用，其中ＴＧ、ＡｐｏＢ对于ＣＨＤ的判别价值优于其它项血脂，且ＮＩＤＤＭ患者ＣＨＤ发展加速的机制与ＴＧ、ＡｐｏＢ也密切相关。因此，应重视对ＣＨＤ、ＮＩＤＤＭ患者ＴＧ、ＡｐｏＢ的监测，并及时纠正脂质代谢紊乱，以降低ＣＨＤ的发病率和病死率。     

神经系统疾病患者血清和脑脊液髓鞘碱性蛋白及其抗体的ELISA定量研究

用简易的髓鞘碱性蛋白（ＭＢＰ）及其抗体（Ａｎｔｉ－ＭＢＰ）酶联免疫吸附定量测定（ＥＬＩＳＡ）法对６组共３３７例神经系统疾病患者进行检测，其中脊髓压迫症（ＣＭＰ）３６例，多发性硬化（ＭＳ）３３例，脑血管疾病（ＣＶＤ）３４例，中枢神经系统感染性疾病（ＩＤ）３１例，癫痫（ＥＰ）１６１例和其他神经系统疾病（ＯＮＤ）４２例。结果显示：ＣＭＰ、ＭＳ．ＣＶＤ、ＩＤ和ＥＰ５组血清ＭＢＰ均值明显高于ＯＮＤ组（Ｐ＜０．０１），其中又以急性外伤所致脊柱骨折伴截瘫为主（３３例）的ＣＭＰ患者血清ＭＢＰ值最高，与ＭＳ组比较Ｐ＜０．０５，与ＣＶＤ、ＩＤ和ＥＰ组比较Ｐ＜０．０１。ＣＶＤ患者ＣＳＦＭＢＰ均值也明显高于ＯＮＤ组（Ｐ＜０．０５）。本法检测６组血清和ＣＳＦ的Ａｎｔｉ－ＭＢＰ含量差异不显著（Ｐ＞０．０５）。     

NIDDM伴发冠心病患者胰岛β细胞早期分泌相的变化

目的：探讨非胰岛素依赖型糖尿病（ＮＩＤＤＭ）伴发冠心病病人胰岛β细胞早期分泌相的变化规律。方法：采用精氨酸兴奋实验及放免法，分别检测了８５例病人空腹及左旋精氨酸（Ｌ—ＡＲＧ）刺激后２、４、６ｍｉｎ钟时的胰岛素（ＩＮＳ）、Ｃ肽（Ｃ—Ｐ）水平的变化，并与５０例同期健康人进行了对照。结果：伴发冠心病的ＮＩＤＤＭ组空腹ＩＮＳ及Ｃ—Ｐ明显高于对照组和无血管病变组（ｔ＝２．１３１～４．９７１，Ｐ＜０．００１，０．０５）；Ｌ—ＡＲＧ刺激后无血管病变的及伴发冠心病的ＮＩＤＤＭ组ＩＮＳ和Ｃ—Ｐ分泌均在２ｍｉｎ时达峰值，ＮＩＤＤＭ伴发冠心病组２ｍｉｎ、４ｍｉｎ、６ｍｉｎ时的ＩＮＳ、Ｃ—Ｐ分泌值均明显高于无血管病变组（ｔ＝２．１４７～９．７７３，Ｐ＜０．００１，０．０１，０．０５）；合并冠心病的ＮＩＤＤＭ伴肥胖组空腹ＩＮＳ、Ｃ—Ｐ及Ｌ—ＡＲＧ兴奋后ＩＮＳ、Ｃ—Ｐ峰值均明显高于非肥胖组（ｔ＝２．４８５～４．９９６，Ｐ＜０．００１，０．０１，０．０５）。结论：伴发冠心病的ＮＩＤＤＭ病人存在较严重的胰岛素抵抗（ＩＲ），同时伴有肥胖者更明显，左旋精氨酸刺激后胰岛β细胞早期分泌相增加；ＩＲ及胰岛细胞分泌亢进与ＮＩＤＤＭ病人冠心病的发生、发     

非胰岛素依赖型糖尿病病人红细胞镁浓度变化及镁对红细胞变形能力的影响

检测了６４例非胰岛素依赖型糖尿病（ＮＩＤＤＭ）病人红细胞镁（Ｅ－Ｍｇ（２＋））浓度变化，同时观察了镁在体外对ＮＩＤＤＭ病人红细胞变形能力（ＥＤ）、红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰ酶活性、Ｅ－Ｍｇ（２＋）和红细胞钙（Ｅ－Ｃａ（２＋））浓度的影响。结果显示，ＮＩＤＤＭ病ＨＥ－Ｍｇ（２＋）浓度较对照组明显降低（Ｐ＜０．００１），有血管病变者降低更明显。ＮＩＤＤＭ病人红细胞与镁共同孵育后，红细胞滤过指数（ＩＦ）、Ｅ－Ｃａ（２＋）明显降低，Ｅ－Ｍｇ（２＋）和红细胞膜Ｎａ＋－Ｋ＋－ＡＴＰ酶活性明显增高，与孵育前比较差异有极显著性（Ｐ＜０．００１），与对照组比较差异无显著性（Ｐ＞０．０５）。提示镁对改善ＮＩＤＤＭ病人血液流变学、减少血管病变的发生有重要意义。     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.