成人GHD患者的血清瘦素、脂联素、内脂素水平及相关性研究

目的 了解成人生长激素缺乏症(GHD)患者体内的瘦素(leptin)、脂联素(ADP)、内脂素(visfatin)水平变化以及与体质指标、血脂及各种激素指标的关系。 方法 纳入成人GHD患者40例(男19例)作为观察组,健康人36例(男18例)作为正常对照组。收集两组的基本资料,包括身高、体质量、腰围、臀围、血脂、甲状腺激素、生长激素、胰岛素、性激素等指标。采集空腹静脉血标本进行血清瘦素、脂联素、内脂素水平测定。 结果 GHD组腰臀比、胆固醇(CHOL)、甘油三酯(TG)、低密度脂蛋白-胆固醇(LDL-C)、瘦素、脂联素、内脂素水平均高于正常对照组(P<0.05);GHD组生长激素(GH)、胰岛素样生长因子-1(IGF-1)、胰岛素样生长因子结合蛋白-3(IGFBP-3)、硫酸脱氢表雄酮(DHEA-S)水平均低于正常对照组(P<0.05)。②经多因素logistic回归分析得出,内脂素水平升高的人群患成人GHD的风险增高(OR=1.430,P<0.05)。 结论 内脂素水平升高的人群患GHD的风险较正常人群增高。     

血清脂联素、内脂素水平与代谢综合征的相关性

目的 了解代谢综合征(MS)患者血清脂联素、内脂素水平的变化,探讨脂联素、内脂素与MS的关系.方法 按2004年中华医学会MS标准进行筛选,分为MS组(42例)和对照组(健康体格检查者,30名),检测人体测量参数和生化指标,并留取血清测定空腹血糖(FPG)、胰岛素(FINS)、血脂、脂联素和内脂素.采用稳态模式评估胰岛素抵抗指数(HOMA-IR).结果 ①MS组中,男22例,女20例,平均年龄为(53±10)岁;对照组中,男18名,女12名,平均年龄为(49±10)岁,两组间年龄、性别构成的差异均无统计学意义(P值均＞0.05).②MS组的血清内脂素水平为(97.57±40.69)μg/L,显著高于对照组的(50.54±19.14)μg/L(P＜0.05),脂联素水平为(7.98±3.62)mg/L,显著低于对照组的(13.55±5.72)mg/L(P＜0.01).③多元回归分析显示,MS组中腰围是影响血清内脂素水平的独立相关因素(标准偏回归系数=0.415,P=0.000),而与其他指标不相关;脂联素水平与HOMA-IR(标准偏回归系数=-0.341)、腰臀比(标准偏回归系数=-0.211)呈显著负相关(P=0.002、0.048),与高密度脂蛋白胆固醇呈显著正相关(标准偏回归系数=0.312,P=0.004).结论 MS患者的内脂素水平升高,而脂联素水平下降;内脂素可能参与腹型肥胖的发生,脂联素可能对胰岛素抵抗和血脂紊乱有抑制作用,内脂素与脂联素之间的关系不明显.     

2型糖尿病患者血清脂联素、内脂素水平的变化

目的 探讨2型糖尿病(T2DM)患者血清脂联素、内脂素水平的变化及影响.方法 我院初次诊断的T2DM患者共55例(T2DM组)和健康对照组50例,分别测定患者空腹血糖(FPG)、胰岛素(FINS)、糖化血红蛋白(HbAlc),血脂、脂联素和内脂素水平,并计算胰岛素抵抗指数(HOMA-IR)的变化.结果 (1)T2DM患者胰岛素抵抗指数明显增高(P ＜0.01);(2) T2DM患者TC、TG明显增高,HLD-C明显降低(P ＜0.05);(3)T2DM患者血清脂联素明显降低,内脂素水平明显增高(P＜0.01);血清脂联素与内脂素呈负相关(P＜0.01).结论 T2DM患者血清脂联素和内脂素水平的变化,可能与T2DM发生、发展相关.     

高血压病患者血清瘦素和脂联素水平的研究

目的研究血清瘦素和可溶性瘦素受体水平与高血压病的关系。方法应用放射免疫分析法检测46例高血压病患者及42例健康对照组血清瘦素、脂联素、总胆固醇、甘油三酯、高密度脂蛋白胆固醇、低密度脂蛋白胆固醇、载脂蛋白ApoA、载脂蛋白ApoB、胰岛素、胰岛素抵抗指数、体质量指数,分析瘦数、脂联素与高血压、血脂、体质量指数及胰岛素抵抗的关系。结果高血压组患者血清瘦素、胰岛素、总胆固醇、低密度脂蛋白胆固醇、载脂蛋白ApoB水平及体质量指数、胰岛素抵抗指数明显高于对照组(P<0.05或P<0.01),脂联素水平显著低于对照组(P<0.01)。瘦数水平与体质量指数、胰岛素抵抗指数呈正相关(r=0.521,r=0.527),与脂联素水平呈负相关(r=0.521)。结论高血压病患者血清瘦素水平升高,脂联素水平下降,且与血压和胰岛素抵抗相关。     

运动加饮食干预对妊娠糖尿病患者胰岛素抵抗和血清脂联素及内脂素水平的影响

目的探讨运动加饮食干预对妊娠糖尿病(GDM)患者胰岛素抵抗(IR)及血清脂联素、内脂素水平的影响。方法选取妊娠24～28周的孕妇88例,按美国糖尿病学会(ADA)2009年GDM诊断标准,将孕妇分为GDM组(38例)和糖耐量正常组(NGT组,50例)。测定两组孕妇的空腹血糖(FBG)、空腹胰岛素(FINS)、血脂〔三酰甘油(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)〕、脂联素、内脂素,并计算胰岛素抵抗指数(HOMA-IR)及体质指数(BMI)。给予GDM组孕妇为期12周的家庭运动干预及饮食控制治疗,跟踪随防所有孕妇,并于孕37～40周再次检测上述指标。结果 (1)干预前(中孕期,孕24～28周),GDM组患者FBG、FINS、HOMA-IR、TG、LDL-C、内脂素水平显著高于NGT组,而脂联素水平则显著低于NGT组,差异均有统计学意义(P<0.05)。Spearman线性相关分析显示,HOMA-IR与年龄、孕周、TG、内脂素水平呈正相关(均P<0.05),与脂联素水平呈负相关(P<0.05)。(2)干预后(孕晚期,孕37～40周),GDM组孕妇BMI、FBG、HOMA-IR、内脂素水平高于NGT组,而脂联素水平低于NGT组,差异均有统计学意义(P<0.05);且FINS、TG、LDL-C水平较GDM组干预前下降,BMI较GDM组干预前增加,差异均有统计学意义(P<0.05)。Spearman线性相关分析表明:脂联素水平与孕周、FBG水平呈负相关(均P<0.05);内脂素水平与孕周、FINS水平呈正相关(均P<0.05)。结论孕中期GDM孕妇存在低脂联素、高内脂素水平及高HOMA-IR;运动加饮食干预能有效控制GDM患者血脂、脂联素、内脂素水平,改善胰岛素抵抗。     

2型糖尿病患者血清抵抗素、瘦素、脂联素水平与微血管病变的关系

目的 探讨2型糖尿病患者血清抵抗素、瘦素、脂联素水平与微血管病变的关系.方法 选择河北北方学院附属第一医院2型糖尿病患者(T2DM) 120例,根据是否伴微血管病变,分为无微血管病变组(NON-MAP) 60例和微血管病变组(MAP)60例,另选取健康体检人群(NC)60例,采取酶联免疫吸附试验(ELISA)测定各组空腹抵抗素、瘦素、脂联素水平,并测定各组的空腹血糖、胰岛素和血脂水平,用胰岛素抵抗指数(HOMA-IR)评价胰岛素抵抗.结果 MVP组及NON-MVP组患者血清抵抗素、瘦素、游离脂肪酸(FFA)及超敏C反应蛋白(hs-CRP)水平均显著高于NC组,而脂联素明显低于NC组,差异有统计学意义(P＜0.05);相关分析表明T2DM患者血清抵抗素、瘦素水平与hs-CRP、淳离脂肪酸(FFA)、HOMA-IR、三酰甘油(TG)呈正相关(P＜0.05),与高密度脂蛋白胆固醇(HDL-C)呈负相关(P＜0.05);脂联素水平与hs-CRP、FFA、HOMA-IR、TG呈负相关,与HDL-C呈正相关(P＜0.05);血清抵抗素、瘦素水平呈明显正相关,而二者与脂联素均呈明显负相关;以血清抵抗素、瘦素、脂联素为因变量,进行多元线性逐步回归分析显示,对三者影响最大的是HOMA-IR和腰臀比(WHR).结论 T2DM患者血清抵抗素、瘦素水平升高、脂联素水平降低,提示血清抵抗素、瘦素、脂联素水平与T2DM的发病及其微血管病变的发生相关.     

多囊卵巢综合征患者血清内脂素、脂联素、瘦素的变化及临床意义

目的:研究多囊卵巢综合征(polycystic ovarian syndrome,PCOS)患者血清中内脂素、脂联素、瘦素水平,为阐明PCOS的发病机制提供基础.方法:设POCS组和健康时照组,采用酶联免疫吸附法(enzyme-linked immunosorbentassay,ELISA)和放射免疫法(radioimmunoassay,RIA),检测73例PCOS患者组以及75例年龄和体重指数(body mass index,BMI)相匹配的健康对照组血清内脂素、脂联素、瘦素、性激素水平以及内分泌代谢指标.结果:PCOS组空腹胰岛素(fasting insulin,Fins)、胰岛素抵抗指数(homeo-static model assessment for insulin resistance,HOMA-IR)、睾酮(testosterone,T)、黄体生成素(luteinizing hor-mone,LH)以及泌乳素(prolactin,PRL)水平高于健康对照组(均P<0.05),而卵泡刺激素(follicle-stim-ulating hormone,FSH)水平低于健康对照组(P<0.001).PCOS组血清的内脂素和瘦素水平显著高于健康对照组[PCOS组内脂素和瘦素分别为(95.30±31.90)和(11.10±3.87)ug/L,健康对照组分别为(73.20±20.30)和(7.21±2.47)ug/L,均P<0.001],而脂联素水平显著低于健康对照组[PCOS组为(4.21±1.17)mg/L,健康对照组为(6.39±1.53)mg/L,P<0.001].PCOS组和健康对照组血清内脂素水平与脂联素呈负相关(分别为r=-0.452和-0.378,均P<0.01),而两组内脂素水平与瘦素、HOMA-IR呈正相关(r=0.379-0.556,均P<0.01).在控制BMI影响后,PCOS组血清内脂素水平与HOMA-IR呈正相关(r=0.462,P<0.01).结论:PCOS患者存在高内脂素、高瘦素和低脂联素水平,且内脂素水平与胰岛素抵抗相关联.     

2型糖尿病合并高血压患者血清网膜素、脂联素及内脂素水平变化

目的探讨2型糖尿病(T2DM)合并高血压患者血清网膜素、脂联素及内脂素水平的变化。方法 102例T2DM患者,根据是否合并高血压分为T2DM合并高血压组(n=50)和T2DM无高血压组(n=52)。检测2组患者的空腹血糖(FBG)、糖化血红蛋白(Hb A1c)、空腹胰岛素(FINS)、总胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)水平;并检测糖耐量试验(OGTT)2 h后的血糖(2h BG)、胰岛素(2h INS)水平及空腹和OGTT 2 h后网膜素、脂联素、内脂素水平。结果 2组患者血脂、FBG、FINS、2h BG、2h INS水平及胰岛素抵抗指数(HOMA-IR)比较,差异无统计学意义(P>0.05)。2组患者空腹网膜素、脂联素及内脂素水平与OGTT后2 h比较,差异无统计学意义(P>0.05)。T2DM合并高血压组患者空腹及OGTT后2 h网膜素和脂联素水平低于T2DM无高血压组(P<0.05),内脂素水平高于T2DM无高血压组(P<0.05)。血清内脂素水平与HOMA-IR和FINS呈正相关(P<0.05);血清网膜素和脂联素水平与HOMA-IR和FINS呈负相关(P<0.05)。结论 T2DM合并高血压患者血清网膜素、脂联素及内脂素水平明显改变,且与胰岛素抵抗有一定的相关性。     

瘦素及脂联素在子痫前期患者血清中的表达及相关性研究

目的 检测子痫前期患者血清瘦素及脂联素的表达并探讨瘦素与脂联素的相关性.方法 采用酶联免疫吸附法检测44例子痫前期患者及24例正常孕妇血清中瘦素、脂联素的表达水平.结果 ①轻、重度子痫前期组血清瘦素水平明显高于正常对照组,差异分别有显著性和极显著性意义(P＜0.05,P＜0.01);②轻、重度子痫前期组血清脂联素水平明显低于正常对照组,重度组与对照组之间的差异有显著意义(P＜0.05);③重度组中瘦素与脂联素呈低度负相关(r=-0.342;P＜0.05 ).结论 瘦素、脂联素参与了子痫前期的发病.     

脂联素瘦素及胰岛素抵抗与非酒精性脂肪肝的关系

目的：探讨脂联素、瘦素及胰岛素抵抗与非酒精性脂肪肝的关系,以了解NAFLD发病危险因素及发病机理。方法：选择病例120例,非酒精性脂肪肝患者60例,酒精性脂肪肝患者60例,另择60例健康人作为正常对照,比较各组之间的指标差异。结果：非酒精性脂肪肝组与酒精性脂肪肝组的脂联素、瘦素、内脂素、抵抗素指标的水平均高于正常对照组,具有显著性差异,P〈0．05。单纯性脂肪肝亚组的脂联素水平与脂肪性肝炎亚组差异具有显著性,P〈0．05。脂联素、瘦素、内脂素分别与抵抗素、HOMA-IR具有相关性,P〈0．05。结论：脂联素、瘦素及胰岛素抵抗水平在非酒精性脂肪肝中均有不同程度的变化,参与了非酒精性脂肪肝的发生和发展。     

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.