Nogo-A受体在局灶性脑缺血大鼠梗死灶周围皮层中的表达及细胞内定位

目的探讨局灶性脑缺血大鼠梗死灶周围Nogo-A受体(NgR)的表达及细胞内定位。方法电凝右侧大脑中动脉建立大鼠局灶性脑缺血模型,免疫组织化学染色检测脑缺血后第5、14、28天脑缺血大鼠梗死灶周围皮层NgR表达及其细胞内定位,并与假手术大鼠相应部位皮层NgR表达作比较。结果脑缺血大鼠梗死灶周围皮层NgR表达第5天低于假手术大鼠,在第14、28天明显高于假手术大鼠。在假手术大鼠皮层、脑缺血大鼠皮层第5天NgR表达主要表达在神经胞体,脑缺血大鼠第14、28天皮层NgR轴突远端的表达增强。结论梗死灶周围皮层NgR表达在缺血后的不同时期表达量及细胞内定位不同,可能与其功能有关。     

亚低温治疗大面积脑梗死临床进展

一、大面积脑梗死的危害大面积脑梗死(massive cerebral infarction)指脑组织的梗死灶面积大,且多为颈内动脉主干、大脑中动脉主干或皮层支的急性完全性闭塞所致的脑梗死。缺血后数分钟,脑水肿由细胞毒性水肿过渡到血管源性,水肿组织压迫周围正常脑组织,产生颅内高压。     

灯盏花素配合β-七叶皂苷钠地塞米松治疗脑出血中后期出血灶和周围水肿的临床观察

目的:观察脑出血中后期出血灶和周围水肿,运用灯盏花素配合β-七叶皂苷钠地塞米松治疗的临床疗效。方法:收治脑出血患者92例,随机分为治疗组和对照组,进行疗效比较。结果:治疗组和对照组总有效率分别为87.9%和64.7%%(P<0.01)。治疗21天治疗组出血灶吸收85%～90%,大部分周围水肿明显缩小;对照组出血灶吸收46%～57%,大部分周围水肿明显。治疗后30天治疗组出血灶完全吸收,软化灶不明显;对照组出血灶也完全吸收,软化灶明显。治疗组明显优于对照组。结论:灯盏花素配合β-七叶皂苷钠地塞米松治疗,能够明显促进血肿吸收,改善血管源性水肿,改善临床症状的作用显著。     

异丙酚对大鼠局灶性脑缺血再灌注时TGF-β1表达的影响

目的：观察异丙酚对大鼠局灶性脑缺血再灌注时TGF-β₁表达的影响,并探讨其脑保护的 机制。 方法：采用线栓法建立大鼠局灶性脑缺血再灌注模型。45只雄性Wistar大鼠,随机分为假手术组、缺血再灌注组(I/R)和缺血再灌注-异丙酚治疗组,大鼠经历2 h脑缺血,然后实行再灌注。分别于再灌注后3、6、24、72 h断头取脑,用免疫组化法检测脑组织TGF-β₁的表达;再灌注后24 h做神经功能缺陷评估及HE染色观察缺血皮层组织形态学变化。 结果：局灶性脑缺血再灌注后TGF-β₁明显表达, 24 h后达高峰(P<0.01), 72 h后降至正常。大鼠神经功能缺陷评分明显升高,组织形态学观察可见皮层水肿、淤血,神经细胞明显变性坏死;应用异丙酚能显著地促进TGF-β₁的表达,与脑缺血再灌注组比较,异丙酚治疗组TGF-β₁释放增多、高峰提前、延缓下降（P<0.05）,同时显著降低大鼠神经功能缺陷评分和减轻缺血皮层组织形态学损伤（P<0.05）。 结论：异丙酚的脑保护作用可能与促进TGF-β₁的表达有关。     

丁苯酞对局灶性脑梗死大鼠皮层Rho相关激酶Ⅱ蛋白表达的影响

目的：探索丁苯酞对局灶性脑梗死大鼠模型皮层 Rho相关激酶Ⅱ（ Rho-associated kinase Ⅱ,ROCKⅡ）表达的影响。方法成年Sprague-Dawley 雄性大鼠45只,随机分为假手术组15只,对照组15只,丁苯酞组15只。应用光化学法建立局灶性脑梗死大鼠模型。术后24h行干湿质量法检测各组大鼠脑组织含水量变化,行免疫组织化学和Western Blot检测各组大鼠梗死区周围皮层ROCKⅡ蛋白表达水平。结果与假手术组比较,对照组和丁苯酞组脑组织含水量明显增加,梗死区周围皮层ROCKⅡ蛋白表达明显增加。丁苯酞组脑组织含水量较对照组降低,梗死区周围皮层ROCKⅡ蛋白表达减少。结论丁苯酞可降低局灶性脑梗死大鼠皮层ROCKⅡ蛋白的表达,减轻脑水肿的形成。     

补阳还五汤对脑缺血大鼠梗死灶周围脑区新生神经细胞增殖、分化及Wnt/β-catenin信号通路的影响

目的 观察补阳还五汤对脑缺血再灌注大鼠梗死灶周围皮层新生细胞增殖、分化及Wnt/β-连环蛋白(β-catenin)信号通路关键蛋白在新生细胞表达的影响.方法 将SD大鼠按随机数字表法分为假手术组、模型组、补阳还五汤组,每组9只.采用线栓法制备大脑中动脉缺血再灌注模型.造模后24 h,补阳还五汤组灌胃补阳还五汤水煎液16.1 g/kg,每日1次,连续给药30 d.于造模后第3天开始腹腔注射5-溴脱氧尿嘧啶核苷(BrdU),活体标记梗死灶周围皮层新生细胞.分别于造模后第9、15、30天取材.采用免疫荧光双标结合图像分析技术,检测各组大鼠梗死灶周围皮层BrdU阳性细胞、双标BrdU/胶质纤维酸性蛋白(GFAP)、BrdU/微管相关蛋白2(MAP-2)、BrdU/Wnt、BrdU/β-catenin、BrdU/散乱蛋白(Dishevelled)阳性细胞.结果 补阳还五汤组大鼠脑缺血再灌注9、15、30 d,梗死灶周围皮层BrdU+细胞数均较同时点模型组大鼠增加(P<0.01),双标BrdU+/GFAP+细胞数较模型组减少(P<0.01);缺血再灌注9、15 d,补阳还五汤组大鼠梗死灶周围皮层双标BrdU+/MAP-2+细胞数较模型组增加(P<0.01).与同时点模型组比较,脑缺血再灌注9 d,补阳还五汤组大鼠梗死灶周围皮层双标BrdU+/Wnt+细胞数增加(P<0.05);脑缺血再灌注15 d,补阳还五汤组大鼠梗死灶周围皮层双标BrdU+/Dishevelled+、BrdU+/β-catenin+细胞数增加(P<0.05);脑缺血再灌注30 d,补阳还五汤组大鼠梗死灶周围皮层双标BrdU+/Wnt+、BrdU+/Dishev-elled+、BrdU+/β-catenin+细胞数均增加(P<0.05或P<0.01).结论 补阳还五汤可激活脑缺血再灌注大鼠梗死灶周围皮层组织新生细胞增殖,抑制新生细胞向胶质细胞分化,促进新生细胞向神经元分化,并可增强新生细胞Wnt、β-catenin、Dishevelled蛋白的表达.     

海风藤提取物对老龄大鼠缺血性脑损伤保护作用研究

目的 探讨海风藤提取物在老龄大鼠局灶脑缺血后可能的脑保护作用。方法 建立光化学导的老龄大鼠避灶性脑缺血模型,利用ＴＴＣ染色、ＨＥ染色原位末端标记第风藤提取物地缺血灶大小、血脑屏障、缺血灶周围坏死细胞、凋亡细胞的影响,结果 海风藤提取物可显著减轻局灶性脑缺血后血脑屏障的破坏,减少缺血灶周围坏死细胞、凋亡细胞数量,并具有减少梗死灶直径的趋势。结论海风藤具有抵御缺血后脑屏障破坏,减少缺血灶周围神经细胞坏     

73例急性胰腺炎的螺旋CT诊断分析

目的探讨CT对急性胰腺炎严重程度诊断价值。方法 2014年2月-2015年1月我院收治的急性胰腺炎患者73例,所有急性胰腺炎的患者均用普通CT和增强CT扫描,总结影像学资料并进行回顾性分析。结果水肿性胰腺炎64例,出血坏死性胰腺炎9例。急性水肿性胰腺炎病例CT扫描中,9例胰腺未见明显异常;14例胰腺弥散性肿胀;7例局灶性肿胀;26例胰周间隙密度增高、模糊;8例出现单发性积液。急性出血性坏死性胰腺炎病例CT扫描中,9例小网膜囊均有积液;4例弥漫性出血;5例灶性出血;6例出现胰周积液,1例出现右肾后间隙积液,2例出现左肾旁间隙积液,在急性出血性坏死性胰腺炎中,全胰腺坏死2例,胰头部坏死2例,段状坏死2例,尾部坏死3例。增强CT动态扫描显示胰腺坏死区域与正常胰腺组织有明显的差异。结论 CT在急性胰腺炎严重程度诊断中具有重要的价值。特别是对急性出血坏死性胰腺炎的诊断,增强CT具有简便性,可靠性,高敏感性等优点。     

急性脑出血患者TNF-α、IL-6、ICAM-1、MMP-9水平与出血灶周围水肿相关性分析

目的:探讨急性脑出血患者肿瘤坏死因子-α(TNF-α)、白介素-6(IL-6)、血清细胞间黏附分子-1(ICAM-1)、基质金属蛋白酶-9(MMP-9)水平和出血灶周围水肿相关性。方法:选取诊治的120例脑出血患者进行研究,按照患者脑出血后7 d颅脑CT检查结果计算出血灶周围水肿体积分为A组(水肿体积<5 ml,27例)、B组(水肿体积5～10 ml,37例)、C组(水肿体积11～20 ml,30例)、D组(水肿体积>20 ml,26例),比较各组TNF-α、IL-6、ICAM-1、MMP-9水平,分析TNF-α、IL-6、ICAM-1、MMP-9水平与出血灶周围水肿相关性。结果:A组、B组、C组、D组患者TNF-α、IL-6、ICAM-1、MMP-9水平依次升高,四组比较,差异有统计学意义(P<0.05)。Pearson分析得出,TNF-α、IL-6、ICAM-1、MMP-9水平与脑出血灶周围水肿体积均呈正相关性。结论:TNF-α、IL-6、ICAM-1、MMP-9水平与急性脑出血灶周围水肿体积均呈正相关性。     

脑血吸虫病的MRI表现特征（附8例报告）

目的探讨脑血吸虫病MRI表现特征及诊断价值。方法回顾性分析8例经手术病理或l临床证实的脑血吸虫病的MRI表现。结果3例单发;5例多发,分布于额顶颞叶皮层和皮层下区,其中2倒同时发生于小脑,1例病灶同时发生于基底节区。T1WI虫卵肉芽肿痛灶为虎点状或结节状等、略低信号,同周围低信号水肿分界欠清,T2WI为等、稍高信号,与水肿一起形成佛手或手握球征,1例伴发血肿,1例伴定梗塞：增强扫描呈斑片、结节样强化,病灶多中心分布、簇状堆积,延时扫描部分结节灶融合,其中4例病变区见到条状强化,2例见到环形强化,4例病灶邻近脑膜示条状、脑回弹强化。灶周水肿重而占位效应相对轻。治疗后复查病灶缩小、消失,水肿消退。结论MRI能清晰显示脑血吸虫病的特征。MRI增强扫描对脑血吸虫早期诊断至关重要,同时MRI检查也是随访及观察疗效的重要方法。     

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.