老年性白内障患者脂质过氧化反应的研究

目的 探讨脂质过氧化反应与老年性白内障的发病关系,方法,本文测定了老年性白内障患者晶状体３９例ＭＤＡ含量ＳＯＤ活力;４８例血浆ＭＤ含量,红细胞ＳＯＤ活力,并以１２例正常人对照,结果：老年性白内障患者晶状体内ＭＤＡ含量高于对照组（Ｐ〈０．０５ＳＯＤ活力显著低于对照组（Ｐ〈０．０１）,眼内脂质过氧化损伤明显增强,血浆ＭＤＡ含量显著高于对照组（Ｐ〈０．０１）。红细胞ＳＯＤ活力显著低于对照组（Ｐ〈０．０１     

ACE基因多态性与OSAS及OSAS合并高血压的相关性研究

目的 探讨血管紧张素转换酶（ＡＣＥ）基因Ｉ／Ｄ多态性与阻塞性睡眠呼吸暂停综合征（ＯＳＡＳ）及ＯＳＡＳ合并高血压的相关性。方法 采用ＰＣＲ扩增方法,对８０例ＯＳＡＳ患者进行ＡＣＥ基因多态性检测及多导睡眠图监测。选择６０例健康人做对照。结果 正常人群中ＡＣＥ基因ＩＩ、ＩＤ、ＤＤ型的分布频率分别为２５％、５０％、２５％,ＯＳＡＳ患者为５２％、３８％、１０％,两组相比其构成有显著性差异（χ＾２＝１２．３１,Ｐ〈０．０５）。正常人群中Ｄ和Ｉ等位基因的频率均为５０％,ＯＳＡＳ患者为２９％和７１％,两组相比其分布有显著性差异（χ＾２＝４．８３,Ｐ〈０．０５）。单纯ＯＳＡＳ患者等位基因Ｄ和Ｉ的频率分别为３６％和６４％,ＯＳＡＳ合并高血压患者为２２％和７８％,其分布有显著性差异（χ＾２＝３．７９６,Ｐ〈０．０５）。ＯＳＡＳ合并高     

18例精神障碍伴发阻塞性睡眠呼吸暂停综合征患者的多导睡？…

目的 探讨精神障碍伴发阻塞性睡眠呼吸暂停综合征（ＯＳＡＳ）患者的临床特点及睡眠生理改变。方法 对４２０例精神障碍患者进行多导睡眠图（ＰＳＧ）检测。将检出的１８例ＯＳＡＳ与１８例正常对照进行比较。结果（１）病例组打鼾、睡眠憋醒、白天嗜睡、记忆减退症状较对照组明显增多（Ｐ〈０．０１）。（２）与对照组比较,病例组醒觉次数、觉醒时间、Ⅰ期睡眠、鼾声指数及呼吸紊乱指数增高,Ⅲ、Ⅳ期深睡眠减少,夜间最低血氧饱     

年龄相关性黄斑变怀血清过氧化脂质水平与超氧化物歧化酶…

对３５例年龄相关性黄斑变怀（ＡＭＤ）和３４例健康对照者进行过氧化脂质（ＬＰＯ）水平和血清超氧化物歧化酶（ＳＯＤ）活性的测定。ＬＰＤ检测采用测定其最终产物之一丙二醛（ＭＤＡ）含量。结果显示ＡＭＤ组ＭＤＡ高于对照组，差异显著（Ｐ〈０．０５）。ＳＯＤ在ＡＭＤ组偏低，但无统计学意义（Ｐ〉０．０５）。正常对照组ＭＤＡ与ＳＯＤ呈负相关（ｒ＝－０．４１３９，Ｐ〈０．０５），而ＡＭＤ组则否。说明ＡＭＤ患者抗氧化能     

年龄相关性黄斑变性血清过氧化脂质水平与超氧化物歧化酶活性的相关性研究

对３５例年龄相关性黄斑变性（ＡＭＤ）和３４例健康对照者进行过氧化脂质（ＬＰＯ）水平和血清超氧化物歧化酶（ＳＯＤ）活性的测定。ＬＰＤ检测采用测定其最终产物之一丙二醛（ＭＤＡ）含量。结果显示ＡＭＤ组ＭＤＡ高于对照组，差异显著（Ｐ＜０．０５）。ＳＯＤ在ＡＭＤ组偏低，但无统计学意义（Ｐ＞０．０５）。正常对照组ＭＤＡ与ＳＯＤ呈负相关（ｒ＝－０．４１３９，Ｐ＜０．０５），而ＡＭＤ组则否。说明ＡＭＤ患者抗氧化能力减弱，导致脂质过氧化损害。低锌可能是ＳＯＤ降低原因，应用抗氧化剂治疗是有益的。     

系统性红斑狼疮患者外周血单核细胞分泌IL-12的水平及其临床意义

目的检测系统性红斑狼疮（ＳＬＥ）患者外周血单核细胞（ＰＢＭＣ）分泌ＩＬ－１２的水平,探讨其与ＳＬＥ活动性的关系。 方法　体外培养ＰＢＭＣ,予脂多糖（ＬＰＳ）刺激后用夹心ＥＬＩＳＡ法检测其上清中的ＩＬ－１２水平,用系统性红斑狼疮疾病活 动性指数（ＳＬＥＤＡＩ）估计ＳＬＥ的病情活动性。结果ＳＬＥ患者ＰＢＭＣ分泌ＩＬ－１２水平［（６４５．０５±１３．８５）ｐｇ／ｍｌ］较正常对照 ［（６５７．９６±６．９１）ｐｇ／ｍｌ］低（ｔ＝３．６９５,Ｐ＝０．０１）,且与ＳＬＥＤＡＩ呈负相关（ｐ＝０．８７３,ｔｒ＝８．２０５,Ｐ＜０．０１）。结论ＳＬＥ患者存在 ＩＬ－１２水平的异常,且ＩＬ－１２水平可作为评价ＳＬＥ患者病情活动性大小的一个有效指标。     

超氧化物歧化酶对大鼠感染性脑损伤的内源性保护作用

测定脑组织丙二醛（ Ｍ Ｄ Ａ） 和３ 种超氧化物歧化酶（ Ｔ Ｓ Ｏ Ｄ, Ｃｕ Ｚｎ Ｓ Ｏ Ｄ 及 Ｍｎ Ｓ Ｏ Ｄ） 活性在大鼠百日咳杆菌脑损伤中的变化,探讨 Ｓ Ｏ Ｄ 的内源性脂质抗氧化作用。结果显示：菌液组（４ ｈ ,２４ ｈ） 脑含水量（ Ｗ Ｃ） 、伊文思蓝含量（ Ｅ Ｂ） 及 Ｍｎ Ｓ Ｏ Ｄ 活性均 高于盐 水对照 组, Ｔ Ｓ Ｏ Ｄ 和 Ｃｕ Ｚｎ Ｓ Ｏ Ｄ 活性 低于 盐水组（ Ｐ ＜ ０ ．０ １） , Ｍ Ｄ Ａ 在菌液４ ｈ 组明显增高, 并分别与 Ｗ Ｃ 和 Ｅ Ｂ 呈显著正相关（ ｒ ＝ ０ ．９ ６５ ０ ,ｒ ＝ ０ ．９ ４４ １ , Ｐ 均 ＜ ０ ．０ １ ） ; 菌液２ ４ ｈ 组 Ｍｎ Ｓ Ｏ Ｄ 活性增高分别与 Ｗ Ｃ, Ｅ Ｂ 及 Ｍ Ｄ Ａ 呈显著负相关（ ｒ ＝ － ０ ．８６５０ ,ｒ ＝ － ０ ．９０２１ ,ｒ ＝ － ０ ．９３４６ , Ｐ 均＜ ０ ．０１ ） 。表明 Ｍｎ Ｓ Ｏ Ｄ 的合成增加在迟发性感染性脑损伤的内源性保护机制中起着重要作用。     

重症阻塞性睡眠呼吸暂停综合征患者围手术期持续正压通气 …

为观察围手术期持续正压通气治疗（ＣＰＡＰ）对重症阻塞性睡眠呼吸暂停综合征（ＯＳＡＳ）患者的影响,对１２例重症ＯＳＡＳ进行了围手术期ＣＰＡＰ治疗,对患者治疗前后呼吸紊乱指数（ＡＨＩ）、血压等指标进行观察,所有患者均接受了半导体激光腭咽成形术。经ＣＰＡＰ治疗后１２例患者ＡＨＩ下降,临床症状消失,无手术并发症出现,术前合并高血压的４例经ＣＰＡＰ治疗后血压恢复正常。提示重症ＯＳＡＳ患者围手术期应用ＣＰＡＰ     

多囊卵巢综合征的高胰岛素血症与神经肽

对多囊卵巢综合征（ＰＣＯＳ）患者２０例及已婚经产健康妇女１０名行口服葡萄糖耐量试验（ＯＧＴＴ），以观察有关内分泌变化。结果ＰＣＯＳ组①ＯＧＴＴ后无糖耐量损害，但有显著高血糖反应；②空腹胰岛素（ＩＮＳ）与空腹β－内啡肽（β－ＥＰ）浓度及ＯＧＴＴ后ＩＮＳ净增量与β－ＥＰ净增量呈正相关（ｒ＝０．４９，Ｐ＜０．０５；ｒ＝０．３７，Ｐ＜０．０５）；③ＯＧＴＴ后ＩＮＳ净增量与强啡肽（ＤｙｎＡ）净增量亦呈正相关（ｒ＝０．５８，Ｐ＜０．０１）；④患者组空腹生长抑素（ＳＳ）显著低于对照组，但ＯＧＴＴ后两组ＳＳ浓度相似。表明ＰＣＯＳ患者空腹高ＩＮＳ与ＳＳ抑制程度不足有关，而ＯＧＴＴ后高ＩＮＳ与β－ＥＰ，ＤｙｎＡ刺激程度过强有关。     

抑郁症及焦虑症病人血浆SOD活性和MDA含量的变化

①目的探讨焦虑症及抑郁症病人血浆中超氧化物歧化酶（ＳＯＤ）活性和丙二醛（ＭＤＡ）含量的变化。②方法采用比色法测定２４例抑郁症、２６例焦虑症病人和２３例健康人血浆ＳＯＤ活性和ＭＤＡ含量。③结果抑郁症及焦虑症病人血浆中ＳＯＤ活性明显低于对照组（ｔ＝１４．４１，２１．６１，Ｐ均＜０．００１），而ＭＤＡ含量显著升高，差异有极显著性（ｔ＝３．７３，９．９４，Ｐ均＜０．００１）。④结论抑郁症和焦虑症病人氧自由基消除能力下降     

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.