地榆升白片预防化疗引起骨髓抑制的临床观察

目的:观察地榆升白片对恶性肿瘤患者化疗引起的骨髓抑制的预防效果。方法:全组88例恶性肿瘤患者随机分为治疗组46例和对照组42例。治疗组在化疗同时服用地榆升白片,每次4片,每日3次,20 d为1个疗程。对照组化疗同时服用利血生和鯊肝醇,利血生片每次20 mg,鯊肝醇片每次100 mg,均每天3次,20 d为1个疗程。两组患者均完成2个周期化疗。结果:治疗组化疗后骨髓抑制发生率为37.0%,对照组为78.6%,两组比较有显著性差异(P<0.05),粒细胞集落刺激因子用量治疗组低于对照组,两组间有显著性差异(P<0.05),白细胞减少继发感染情况治疗组低于对照组。结论:地榆升白片能有效预防化疗引起的骨髓抑制。     

薏苡仁酯配合化学药物治疗晚期鼻咽癌的临床研究

目的 :探讨薏 以艹 仁酯 (coixenolide,CXL)配合 PFB方案治疗晚期鼻咽癌 (NPC)的疗效与机制。方法 :将 60例 期伴远处转移的 NPC患者随机分为两组。对照组单纯化疗 ,试验组化疗加 CXL。两组的化疗方案、剂量及疗程均相同。顺铂 (DDP) 2 0 mg/(m2· d) ,静脉滴注 ,第 1～ 5天 ;5-氟尿嘧啶 (5- Fu) 50 0 mg/(m2· d) ,静脉滴注 ,第 1～ 5天 ;博来霉素(BLM) 7mg/(m2 · d) ,肌肉注射 ,第 1、5天 ;共 3个疗程。试验组加滴 CXL注射液 2 0 0 ml/次 ,1次 /d,直至化疗结束。同时 ,在治疗前后采用 APAAP、MTT方法分别检测 T淋巴细胞及其亚群、NK细胞和 IL- 2活性。结果 :对照组有效率63.3% ,试验组 86.7% ,差异显著 (P<0 .0 5)。化疗后对照组 CD3 、CD4、CD4、/CD8下降明显 (前后比较 ,P<0 .0 5或0 .0 1 ) ,试验组则回升 (P<0 .0 5或 0 .0 1 ) ,并高于对照组 (P<0 .0 1 )。NK细胞和 IL- 2活性也显示相似的变化。随访 1年 ,对照组无瘤生存 0例 ,病情稳定 1 6例 ,恶化 7例 ,死亡 7例 ;试验组分别是 5、2 0、3、2例 ,优于对照组 (P<0 .0 2 5)。结论 :CXL配合 PFB方案提高晚期 NPC的疗效。可能的机理是 ,CXL增加癌细胞对化疗药物的敏感性 ,或直接抑制癌细胞的增殖 ,以及通过调节免疫功能促进抗癌     

胃癌术后早期腹腔灌注化疗的疗效观察

目的　探讨胃癌术后早期腹腔灌注化疗对改善预后的效果。　方法　 10 5例胃癌术后患者随机分为 2组 :治疗组 (6 2例 )在应用FLP方案静脉化疗的第 5d用顺铂 (DDP) 6 0mg/m2 +0 .9%氯化钠溶液2 0 0 0ml(39～ 4 0℃ )行腹腔灌注化疗。对照组仅作FLP方案静脉化疗。两组均以 2 8d为 1个静脉化疗周期 ,3个周期为 1个疗程 ,在术后 1.5内实施 2～ 3个疗程。　结果　治疗组 3年生存率为 6 9.4 % (4 3/6 2 ) ,对照组为 4 6 .5 % (2 0 /43) ,两组差异有显著性 (P <0 .0 5 ) ;3年中 ,治疗组的肝转移、腹腔转移率低于对照组 (P <0 .0 5 )。治疗组重度恶心、呕吐及重度骨髓抑制发生率较对照组低 (P <0 .0 5 ) ,但腹膜炎及腹痛的发生率高 (P <0 .0 5 )。　结论　术后早期腹腔灌注化疗是提高晚期胃癌患者术后化疗效果的有效方法     

重组人粒细胞集落刺激因子对乳腺癌化疗后骨髓抑制的疗效分析

目的 该文旨在研究探讨应用重组人粒细胞集落刺激因子(recombinant human granulocyte colony-stimulating fac-tor,rhG-CSF)对乳腺癌患者化疗后骨髓抑制的治疗效果.方法 采用回顾性研究,方便选出2013年5月—2016年5月在某医院使用多西他赛(docetaxel)75 mg/m2、环磷酰胺(cyclophosphamide)500 mg/m2化疗方案的100例浸润性乳腺癌患者,在化疗第1个周期结束后1~2 d内皮下注射rhG-CSF为治疗组,化疗后1~2 d内未皮下注射rhG-CSF为对照组,评估两组化疗后骨髓抑制的程度.结果 在应用rhG-CSF的50例患者中,白细胞减少症的发生率为24%,中性粒细胞减少症发生率为20%;在对照组50例患者中,二者发生率分别为80%和70%,差异有统计学意义(P<0.01).治疗组与对照组化疗前白细胞计数差异无统计学意义(P=0.648>0.05),两组化疗前中性粒细胞计数差异无统计学意义(P=0.104>0.05);化疗后两组白细胞和中性粒细胞计数差异有统计学意义(P<0.01).结论 浸润性乳腺癌患者在第一周期化疗后1~2 d内给予rhG-CSF,能减少白细胞降低比率,使骨髓抑制得以减轻,确保化疗顺利进行.     

咖啡酸片预防消化道肿瘤化疗引起骨髓抑制的临床观察

目的观察咖啡酸片对消化道恶性肿瘤患者化疗引起的骨髓抑制的预防效果。方法 70例消化道恶性肿瘤患者随机分为观察组38例和对照组32例,观察组在化疗的同时给予咖啡酸片,300 mg/次,3次/d,14 d为1疗程。对照组在化疗时不服用任何升白细胞药物,仅在白细胞减少至正常值以下时,使用重组人粒细胞集落刺激因子（rhG-CSF）200μg/次皮下注射,直至白细胞恢复正常。两组患者均完成2个周期化疗。化疗中及化疗后观察骨髓抑制发生率、rhG-CSF用量、白细胞减少继发感染率和药物不良反应。结果观察组患者化疗后骨髓抑制发生率为34.2%,对照组为68.8%,观察组较对照组明显降低（P〈0.05）;rhG-CSF人均用量,观察组为（2.33±1.02）支,对照组为（4.57±1.36）支,观察组较对照组明显减少（P〈0.05）;两组白细胞减少继发感染率分别为10.5%、25.0%,差异有统计学意义（P〈0.05）。观察组口服咖啡酸片后1例轻度口干,2例丙氨酸氨基转移酶轻度升高,对症治疗后缓解,余未见不良反应。结论咖啡酸片能有效预防消化道恶性肿瘤化疗引起的骨髓抑制。     

奈达铂治疗恶性肿瘤的Ⅱ期临床观察

目的 :观察抗肿瘤新药奈达铂 (Nedaplatin,NDP)治疗晚期非小细胞肺癌 (NSCL C)、鼻咽癌 (NPC)和食管癌的疗效及毒性反应。方法 :初治 (未接受过化疗 )的 NSCL C、NPC和食管癌病人按数字随机法分成试验组和对照组 ,NSCL C病例试验组接受 NDP10 0 mg/m2 ,静注 ,第 1天 ;长春地辛 (VDS) 3mg/m2 ,静注 ,第 1、5天 ;对照组接受顺铂 (DDP) 10 0 mg/m2 ,平均分在连续 3d静注 ,第 1天 ;VDS3m g/m2 ,静注 ,第 1、5天 ;NPC和食管癌病例的试验组接受 NDP10 0 mg/m2 ,静注 ,第 1天 ;5 - Fu5 0 0mg/m2 ,静注 ,第 1～ 5天 ;对照组接受 DDP10 0 mg/m2 ,平均分在连续 3d静注 ;5 - Fu5 0 0 m g/m2 ,静注 ,第 1～ 5天。复治 (DDP方案化疗失败后 )的 NSCL C和 NPC病例进入单药组 :奈达铂 10 0 mg/m2 ,静注 ,第 1天。所有方案均为每 3周为 1个疗程。结果 :共计 6 1例病例入组 ,均可评价疗效和毒性反应。总计试验组的有效率 (RR)为 33.3% (8/2 4 ) ,稍高于对照组的 2 6 .9% (7/2 6 ) (P >0 .0 5 )。其中 ,NSCL C试验组与对照组的 RR各为 18.8% (3/16 )和 2 0 % (4 /2 0 ) ;NPC试验组与对照组的 RR各为5 7.1(4 /7)和 80 % (4 /5 ) ,(P >0 .0 5 ) ;食管癌试验组 PR1例与对照组 SD1例。单药组 (11例 )的 RR为 4 5 .5 %。 3个组的     

多西他赛化疗所致食管癌患者骨髓抑制的特点及对策

目的：观察多西他赛化疗所致食管癌患者骨髓抑制的特点及防护措施。方法：回顾性分析20例应用多西他赛常规剂量化疗的食管癌患者资料。结果：化疗后100%患者（20例）出现骨髓抑制,80%患者（16例）出现Ⅳ度骨髓抑制;20%患者（4例）出现血小板降低;16例出现Ⅳ度骨髓抑制患者中有2位出现肺部感染,所占比例为12.5%,其中1例患者因感染性休克死亡。白细胞计数波动呈现“U”型变化,在化疗后4~7d开始出现降低,化疗后5~8d降至谷底,暨开始降低后1~2d降至谷底,给予患者升白细胞治疗后1~7d恢复正常,中位时间为4 d,白细胞计数低谷抑制持续时间为3~5 d。结论：食管癌患者应用多西他赛化疗后均出现不同程度骨髓抑制,化疗后白细胞计数波动呈“U”型变化,化疗后4~7d开始出现降低,提前应用升白细胞药物很有必要。     

紫杉醇联合草酸铂、卡培他滨三药方案治疗晚期转移性鼻咽癌的临床研究

目的 探讨紫杉醇联合草酸铂、卡培他滨三药方案治疗晚期转移性鼻咽癌的疗效及不良反应.方法 2002年1月至2005年1月,110例晚期转移性鼻咽癌病人入组:试验组55例患者,第1天应用紫杉醇135mg/m2、草酸铂130mg/m2静脉滴注,口服卡培他滨1650mg/m2/d,连服1～14d,每3周为一个周期,连用2～4个周期;对照组55例患者,第1～5天应用DDP 20mg/m2、5-Fu 0.5g/m2静脉注射,3周为一个周期,连用2～4个周期;治疗结束2～4周后评价疗效.结果 试验组疗效可评价55例,对照组疗效可评价53例.试验组与对照组有效率分别为(CR PR)50.9%(28例)和32.1%(17例),两者差异有统计学意义(P<0.05).试验组和对照组中位生存时间为10.6个月和8.6个月,两者差异有统计学意义(t<0.05).安全性方面:试验组Ⅳ反应主要为手足综合征8例(14.5%)、骨髓抑制2例(3.6%)和消化道毒性4例(7.3%);对照组Ⅳ反应主要为消化道毒性8例(15.1%)、骨髓抑制2例(3.8%).结论 紫杉醇联合草酸铂、卡培他滨三药方案对晚期转移性鼻咽癌的疗效较DDP 5-Fu有优势,且不良反应可以耐受.     

胎盘多肽注射液联合化疗对晚期非小细胞肺癌生活质量及骨髓抑制的影响

目的：观察胎盘多肽注射液联合化疗对晚期非小细胞肺癌（NSCLC）生活质量及骨髓抑制的影响。方法：选取我院2011年1月-2012年5月收治的80例晚期NSCLC患者,随机分为观察组（胎盘多肽注射液联合化疗治疗组）和对照组（单纯化疗治疗组）,各40例。两组均采用DP方案（多西他赛、顺铂）,21d为1个周期,观察组加用胎盘多肽注射液治疗,每周期化疗前2d开始,连续静滴14d,2个周期后分析两组生活质量（Karnofsky评分）及骨髓抑制情况。结果：观察组治疗前后KPS评分比较差异有统计学意义（P〈0．05）,且治疗后与对照组比较差异有统计学意义（P〈0．05）;化疗后与对照组比较,观察组白细胞和中性粒细胞下降,差异有统计学意义（P〈0．05）,而血红蛋白和血小板下降差异无统计学意义（P〉0．05）。结论：胎盘多肽注射液联合化疗治疗晚期非小细胞肺癌在提高生活质量、减轻骨髓抑制方面有较好的临床疗效。     

奈达铂治疗非小细胞肺癌的Ⅱ期临床研究报告

目的 :观察奈达铂 (Nedaplatin,NDP)治疗晚期非小细胞肺癌 (NSCL C)的疗效及不良反应。方法 :将初治 NSCL C病人按数字随机法分成试验组和对照组 ,试验组 :NDP10 0 mg/ m2 ,静注 ,第 1天 ;长春地辛 (VDS) 3mg/ m2 ,静注 ,第 l、5天。对照组 :顺铂 80～ 10 0 m g/ m2 ,静注 (联合水化 ) ,平均分在连续 3d内使用 ;VDS3mg/ m2 ,静注 ,第 l、5天。两个方案均为每 3周为1个周期。结果 :入组的 36例病例均可评价疗效 ,试验组 16例 ,有 3例取得 PR,SD5例 ,PD8例 ,有效率 (RR)为 18.8% (3/18) ;对照组 2 0例 ,获 PR4例 ,SD8例 ,PD8例 ,RR为 2 0 % (4 / 2 0 )。两组均无 CR病例 ,两组的有效率相当 (P >0 .0 5 )。骨髓抑制是两个方案的主要不良反应 ,两组的贫血、白细胞减少发生率均较高 ,但差异无统计学意义。两组的血小板减少发生率均不足 2 0 %。除了对照组呕吐的发生率明显高于试验组外 (P <0 .0 5 ) ,两组的其他不良反应相近 (均 P >0 .0 5 )。结论 :NDP联合方案对晚期的 NSCL C有一定的疗效 ,病人耐受性好 ,不良反应主要为骨髓抑制 ,其他不良反应轻微     

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.