内皮素—1在大鼠卵巢内的分布

在研究用免疫细胞化学的方法观察了内皮素-1（endothelin-1,ET-1）在大鼠卵巢内的分布。结果：在未成年大鼠卵巢可见到ET-1免疫染色阳性颗粒分布在卵泡的外周膜细胞；成年动情前期大鼠卵巢ET-1阳性颗粒主要分布在卵泡或黄体周围的膜细胞，亦分布在卵泡血管内皮细胞中；假孕大鼠和妊娠大鼠卵巢可观察到ET-1免疫染色阳性颗粒分布在膜细胞和黄体中央腔内，妊娠10d大鼠卵巢内膜细胞染色的阳性反应较妊娠5d的大鼠显著增强，黄体中央腔内染色呈较强的阳性反应，提示ET-1可能参与卵泡发育、卵巢颗粒细胞机能和黄体退化过程的调控。     

小鼠双侧卵巢自体异位移植的形态学研究

对生后３０ｄ雌性小鼠进行双侧卵巢自体皮下移植，研究移植物的生长发育和分泌功能。取移植卵巢进行ＨＥ染色观察。卵巢外包较厚的结缔组织膜。卵泡坏死始于移植后第２ｄ，血细胞进入坏死腔内；第４ｄ皮质浅层见大量原始卵泡和少量窦前卵泡；第７ｄ卵巢生发上皮明显，皮质中见少量窦状卵泡、囊状卵泡和间质腺；第１４～２１ｄ坏死灶基本消失，并可见黄体样结构；第２８～７２ｄ卵巢中充满正在生长的各期卵泡和黄体，可见间质腺。动情周期于移植后（７．９±１．７）ｄ恢复。实验显示自体双侧异位移植卵巢能够存活、发育，并分泌性激素，维持性周期。     

小鼠生后卵巢发育的形态学与组织化学研究

将小鼠分为生后１、５、１０、１５、２０、２５、３０、３５、４０ｄ、成体１０组，进行不同发育阶段的卵巢形态学和组织化学研究。发现小鼠生后第１ｄ的卵巢含有许多原始卵泡及少量间质，５ｄ卵泡开始生长，１０ｄ卵泡膜形成，１５ｄ透明带形成，间质腺出现，２０ｄ后很多卵泡生长发育，至４０ｄ时可见成熟卵泡与黄体。３－β－ＨＳＤＨ与脂类于第１０ｄ出现于卵泡膜内层，继而在粒层、间质腺及黄体出现，卵泡膜内层及间质腺随发育而阳性增强。碱性磷酸酶（ＡＬＰ）在生后１ｄ的初级卵母细胞为阳性，５ｄ变为阴性，１０ｄ卵泡膜内层为阳性，以后逐渐增强．亮氨酰氨基肽酶（ＬＮＡｓｅ）、酸性磷酸酶（ＡＣＰ）及糖原在卵巢分布很广，阳性随发育而增强。     

大鼠卵巢颗粒细胞IGF—I,TGFβ,Fas—L表达与卵泡闭锁发生？…

为研究ＩＧＦ－Ｉ,ＴＧＦβ和Ｆａｓ－Ｌ在维持卵泡颗粒细胞存活和介导颗粒细胞凋亡中的作用。探讨卵泡闭锁的局部分子机理,将ＳＤ大鼠卵巢石蜡切片,用ＴＵＮＥＬ法和ＰＣＮ免疫组地区别闭锁和生长卵泡,用免疫组分法标记言之有理三种因子以及它们的膜受体在卵泡内的表达,结果显示,无腔和有腔生长卵泡内大多数颗国ＰＣＮＡ阳性,早期有腔闭锁卵泡有５个以上颗粒细胞被衍标记,部分颗粒细胞为ＰＣＮＡ阳性;晚期有腔闭锁卵泡剩余     

大鼠卵巢颗粒细胞IGF-Ⅰ、TGFβ、Fas-L表达与卵泡闭锁发生的研究

为研究ＩＧＦ－Ⅰ,ＴＧＦβ和Ｆａｓ－Ｌ在维持卵泡颗粒细胞存活和介导颗粒细胞凋亡中的作用,探讨卵泡闭锁的局部分子机理,将ＳＤ大鼠卵巢石蜡切片,用ＴＵＮＥＬ法和ＰＣＮＡ免疫组化法区别闭锁和生长卵泡,用免疫组化法标记这三种因子以及它们的膜受体在卵泡内的表达。结果显示：无腔和有腔生长卵泡内大多数颗粒细胞为ＰＣＮＡ阳性;早期有腔闭锁卵泡有５个以上颗粒细胞被ＴＵＮＥＬ法标记,部分颗粒细胞为ＰＣＮＡ阳性;晚期有腔闭锁卵泡剩余颗粒细胞多数被ＴＵＮＥＬ法所标记,但为ＰＣＮＡ阴性。有腔生长卵泡颗粒细胞ＩＧＦ－Ⅰ、ＩＧＦ－ＩＲ、ＴＧＦβ、ＴＧＦβＲ、Ｆａｓ、Ｆａｓ－Ｌ均为阳性。早晚期有腔闭锁卵泡的颗粒细胞为Ｆａｓ、ＴＧＦβ和ＴＧＦβＲ阳性。结果提示：ＴＵＮＥＬ法和ＰＣＮＡ免疫组化联合运用有利于区分闭锁卵泡和生长卵泡。ＩＧＦ－Ⅰ仅对有腔生长卵泡颗粒细胞有促进增殖和维持存活的作用,其表达的下降和消失为有腔卵泡闭锁的重要诱因。ＴＧＦβ、Ｆａｓ－Ｌ和Ｆａｓ可能介导有腔卵泡颗粒细胞的凋亡,参与闭锁过程,但在有ＩＧＦ－Ⅰ存在的条件下,其介导作用可能受到抑制     

氧自由基对再灌注损伤大鼠白细胞介素1活性的影响

探索大鼠严重烧伤肾组织内皮素－１（ＥＴ－１）动态变化规律。方法用凝固汽油烧伤Ｗｉｓｔａｒ大鼠背部制成３０％ＴＢＳＡⅢ度烧伤模型，观察正常对照、烧伤后１、３、６、１２、２４小时共６组动物的肾静脉血浆、肾皮质、外髓、内髓ＥＴ－１浓度变化，肾组织ＥＴ－１光镜和电镜免疫组织化学变化，肾组织ＥＴ－１ｍＲＮＡ斑点杂交和原位杂交变化。结果烧伤后１小时肾静脉及肾组织各层ＥＴ－１较对照组明显上升（Ｐ＜０．０１），６小时达到高峰，２４小时仍明显高于正常。免疫组织化学显示ＥＴ－１增强部位主要在血管内皮细胞及平滑肌细胞、系膜细胞、肾小管上皮细胞，且内皮细胞内ＥＴ－１分泌颗粒聚积在细胞基底面，而小管上皮细胞基底面、管腔面均有ＥＴ－１分泌颗粒。斑点杂交及原位杂交均显示ＥＴ－１ｍＲＮＡ烧伤后１小时明显升高，３小时达高峰，２４小时仍高于正常，主要分布与免疫组织化学结果一致。结论严重烧伤早期肾脏ＥＴ－１的分泌和基因表达明显增强。     

肾上腺及其病变组织中内皮素－1的免疫组织化学和超微结构观察

观察、研究内皮素－１（ＥＴ－１）在人肾上腺及其病变组织中的形态学定位。方法用免疫组织化学的方法研究了ＥＴ－１在肾上腺瘤性和非瘤性组织中的组织学情况和电镜定位。结果ＥＴ－１免疫阳性物质存在于肾上腺皮质腺瘤（１００％）、皮质腺癌（３／１０）和瘤旁组织（１００％）中，而不存在于髓质组织中。ＥＴ－１免疫阳性物质以环状和颗粒状存在于肾上腺皮质腺瘤、皮质增生组织和瘤旁组织细胞胞浆内和胞膜上，以粉尘状存在于肾上腺癌个别细胞胞浆内。免疫电镜下ＥＴ－１阳性物质存在于粗面内质网、线粒体、脂质体和细胞膜上。结论提示ＥＴ－１与肿瘤分化程度有关，ＥＴ－１免疫组织化学染色，可能具有鉴别肾上腺良恶性皮质腺瘤的意义；ＥＴ－１阳性物质存在于粗面内质网，说明ＥＴ－１是由皮质细胞合成的；存在于线粒体和脂质体，说明ＥＴ－１与皮质激素合成有关；存在于细胞膜上可能与ＥＴ－１受体有关。     

小鼠双侧卵巢自体移植的组织化学研究

对小鼠双侧自体移植的卵巢进行组织化学研究，探讨其生长规律。结果表明：移植第２～４ｄ，卵巢的原有组织处于退化状态，边缘偶见窦前卵泡，仅散在分布酶染色阳性物质。移植第７～１４ｄ，卵巢中出现窦状卵泡，酶染色较强阳性，大多数动物出现动情周期。移植第１４ｄ以后，卵巢内含发育不同阶段的卵泡、黄体和大量间质腺，酶分布广泛，染色强阳性。研究结果提示双侧自体移植卵巢能够生长发育，并可能分泌性激素。     

内毒素血症时内皮素及受体mRNA在肝组织中的分布及意义

观察内毒素血症时内皮素１（ＥＴ－１）和内皮素Ａ型受体（ＥＴＡＲ）在肝组织中的分布及对肝组织的生理病理意义。方法选用ｗｉｓｔａｒ大鼠３０只，均分为对照组和内毒素组（１０ｍｇ／ｋｇ）。采用原位分子杂交技术观察了伤后３、６、１２和２４小时肝组织中ＥＴ－１和ＥＴＡＲ在肝细胞中的分布和表达变化。肝组织ＥＴ－１ｍＲＮＡ原位杂交显示，肝血窦内皮细胞、肝小叶中央静脉内皮细胞和ｋｕｐｆｅｒ＇ｓ细胞呈阳性反应，颗粒堆积，视野内阳性细胞数较对照组增多。肝组织ＥＴＡＲｍＲＮＡ原位杂交显示，肝血窦周围、肝小叶间动脉壁平滑肌细胞呈阳性反应，颗粒堆积。结论肝脏合成ＥＴ－１的细胞为肝血管、肝血窦内皮细胞和ｋｕｐｆｅｒ＇ｓ细胞。肝血管平滑肌细胞、贮脂细胞含有ＥＴＡＲ。内毒素在转录和翻译水平调节ＥＴ－１、ＥＴＡＲ合成，并使其表达增强     

内皮素在低氧性肺动脉高压大鼠肺内的分布及变化研究

为研究低氧性肺动脉高压时大鼠肺内内皮素的分布和变化,以及其与低氧肺动脉高压的关系,用免疫组织化学染色法确定ＥＴ－１在肺内的分布,用族免法测定ＥＴ－１逍度。结果;ＥＴ－１阳性反应部位主要位于内皮细胞,而在内皮与平滑肌连接处浓度更高。缺氧２小时,ＥＴ－１浓度无明显变化,缺氧２４后,ＥＴ－１水平呈升高趋势,并随着缺氧时间的延长而维持在较高水平。     

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.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

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.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.