Human epididymis protein 4 (HE4) levels inversely correlate with lung function improvement (delta FEV1) in cystic fibrosis patients receiving ivacaftor treatment

Background

We have recently shown that human epididymis protein 4 (HE4) levels correlate with the severity of cystic fibrosis (CF) lung disease. However, there are no data on how HE4 levels alter in patients receiving CFTR modulating therapy.

冷冻切片常遇到的问题及解决对策

目的 提高制作冷冻切片质量，确保实验结果科学性。方法 通过对切片机工作室温度设置选择，防卷板的调整应用及切片常遇到的问题分析，阐述提高制作高质量冷冻切片的方法。结果 通过对冷冻切片机有关参数的设定，提高了切片质量。结论 冷冻切片常遇到的问题，通过及时调整切片机相应设置，可以便捷解决。     

Monoclonal antibodies to three distinct epitopes on human IgE: their use for determination of allergen-specific IgE

Three different monoclonal antibodies (MAb) against human immunoglobulin E have been obtained which specifically bind to human myeloma and polyclonal IgE. The antibodies showed high avidities for soluble IgE (0.7 X 10(9) to 3.3 X 10(9) M-1). These MAb defined three distinct epitopes on IgE. A mixture of these antibodies in combination with an 125I-labelled anti-mouse Kappa chain MAb has been used to measure allergen-specific IgE. This determination was performed by a solid-phase radioimmunoassay using allergen extracts coated to either chemically activated paper discs or to polyvinyl chloride wells. This method is 4-10 times more sensitive than other previously reported procedures. A similar technique has also been applied to detect individual allergens in immunoblots of allergen extracts.     

中西药联合应用治疗糖尿病足的护理

随着糖尿病发病率的升高,其慢性并发症逐渐对患者的健康和生活质量构成严重威胁.其中糖尿病足患病率达6%～20%[1].我科2000年1月～2006年10月,共收治2级糖尿病足的患者42例.其中21例给予中西药联合治疗,疗效明显,现介绍如下.     

OPN及HE4基因在上皮性卵巢癌中的表达及临床意义

目的探讨卵巢癌中OPN蛋白及HE4蛋白表达与临床病理因素间的关系及其预后的影响。方法应用免疫组织化学SP法检测47例上皮性卵巢癌、15例卵巢上皮交界性肿瘤及10例卵巢上皮性良性肿瘤组织中OPN及HE4蛋白的表达情况,分析蛋白表达与临床病理因素间的关系及其对预后的影响。结果OPN及HE4蛋白的表达呈正相关,与临床分期、腹水、淋巴结转移密切相关,P<0.05。结论OPN及HE4基因蛋白高表达可能与上皮性卵巢癌浸润、侵袭、淋巴结转移有关。     

Therapeutic effects of total alkaloids of Tripterygium wilfordii Hook f. on collagen-induced arthritis in rats

Ethnopharmacological relevance

Tripterygium wilfordii Hook f. is one of Traditional Chinese Medicines which is commonly used to treat rheumatoid arthritis (RA). The total alkaloids were the main constituent part of Tripterygium wilfordii Hook f. It has a great significance to study the effects of the total alkaloids of Tripterygium wilfordii Hook f. (ATW) on RA.

Aim of the study

This paper aims at investigating the therapeutic effect of ATW on RA and its possible mechanism, and providing a theoretical and experimental basis for the clinical use of ATW.

Materials and methods

The model of wistar rats of type II collagen-induced arthritis (CIA) was made, and the rats were perfused a stomach with ATW for 4 weeks continuously. Then the levels of interleukin (IL)-6, IL-8, tumor necrosis factor (TNF)-<alpha>, in the serum of CIA rats were detected by enzyme linked immunosorbent assay (ELISA), and the joint pathological section of CIA rats was observed by hematoxylin and eosin (HE) staining method and the expression of IL-6, IL-8, nuclear factor kappa B (NF-κB), TNF-α were measure by immunohistochemistry staining method.

Results

Compared with model group, ATW could significantly reduce paw swelling and suppresse articular cartilage degenerated. The results also found that there was significant reduction levels of IL-6, IL-8 and TNF-α in serum of CIA rats treated with ATW and ATW inhibited the expression of IL-6, IL-8, NF-κB, TNF-α in synovial tissue.

Conclusion

ATW not only could inhibit the symptom of CIA rats significantly but also could inhibit the production of IL-6, IL-8, TNF-α in serum and the expression of IL-6, IL-8, NF-κB and TNF-α in synovial tissue targeting the inflammatory. ATW would be a drug as a novel botanical drug for the treatment of RA.     

术前血清CA125、HE4和中性粒细胞与淋巴细胞比值联合检测在子宫内膜癌诊断中的作用

目的:探讨血清糖类抗原125（carbohydrate antigen 125,CA125）、人附睾蛋白4（human epididymis protein 4,HE4）、中性粒细胞与淋巴细胞比值（neutrophil-lymphocyte ratio,NLR）联合检测在子宫内膜癌诊断中的作用。方法:选取42例子宫内膜癌患者、50例子宫内膜良性疾病患者和50例健康体检人群。采用SYSMEX XN550全自动血液分析仪计数术前外周血中性粒细胞和淋巴细胞,计算NLR;采用Maglumi4000全自动化学发光仪检测术前血清CA125、HE4水平。采用ROC曲线分析CA125、HE4、NLR和三者联合指标在诊断子宫内膜癌中的作用。结果:外周血NLR在健康组、良性组和子宫内膜癌组中逐渐增高,且差异有统计学意义（P<0.05）;子宫内膜癌组HE4表达量显著高于良性组与健康组（P<0.05）,而良性组与健康组之间差异无统计学意义（P>0.05）;CA125表达量在三组中差异无统计学意义（P>0.05）。CA125、HE4、NLR及三者联合标记物的AUC分别为0.530、0.733、0.795、0.823,当分别取它们的临界值时,特异性分别为70.8%、85.1%、61.7%、83.0%,敏感性分别为40.0%、63.3%、86.7%、73.3%。单项指标NLR的敏感性最高,HE4的特异性最高,联合指标的特异性和敏感性都很高。结论:术前血清CA125、HE4和NLR联合检测具有较高的特异性和敏感性,联合检测可以互为补充,提高子宫内膜癌的诊断准确率,对子宫内膜癌的诊断具有指导意义。     

Analgesic, anti-inflammatory and antioxidant properties of Buddleja globosa, Buddlejaceae

ETHNOPHARMACOLOGICAL RELEVANCE: Buddleja globosa, known as "matico", is employed in Chile for wound healing. AIM OF THE STUDY: To validate the traditional use of the crude drug through in vivo and in vitro evaluation of the anti-inflammatory, analgesic and antioxidant properties of its extracts. MATERIALS AND METHODS: Sequential hexane, dichloromethane, methanol and total methanol extracts were studied using bioguided fractionation. The following activities were investigated: analgesic (writhing test), oral and topic anti-inflammatory (paw- and ear-induced edema), free radical scavenging and antioxidant activities (1,1-diphenyl-2-picrylhydrazyl, DPPH, superoxide anion, lipid peroxidation and xanthine oxidase inhibition). Sodium naproxen, nimesulide, indomethacin were used as reference drugs for in vivo, quercetin and allopurinol for in vitro assays. RESULTS: A mixture of alpha- and beta-amyrins was isolated from the hexane extract that showed 41.2% of analgesic effect at 600 mg/kg, inhibited by 47.7 and 79.0% the arachidonic acid (AA) and 12-deoxyphorbol-13-decanoate (TPA)-induced inflammation at 3mg/20 microL/ear, respectively. A mixture of beta-sitosterol, stigmasterol, stigmastenol, stigmastanol and campesterol was isolated from the fraction CD4-N and beta-sitosterol-glycoside from the fraction CD5-N, reducing TPA-induced inflammation by 78.2 and 83.7% at 1mg/20 microL/ear, respectively. The fraction CD4-N at 300 mg/kg also showed analgesic activity (38.7%). The methanol extract at 600mg/kg per os showed anti-inflammatory effect (61.4%), topic anti-inflammatory (56.7% on TPA) and analgesic activity (38.5%). Verbascoside and luteolin-7-O-glucoside were the major components of the methanol extract; apigenin 7-O-glucoside was also detected. Inhibition of superoxide anion, lipoperoxidation, and DPPH bleaching effect was found in the methanol serial and global extracts. CONCLUSIONS: The present report demonstrate the analgesic and anti-inflammatory properties of Buddleja globosa and validate its use in Chilean traditional medicine.     

对家兔糖尿病模型胰岛素治疗的实验观察

目的以胰岛细胞的变化和凋亡程度为判断标准,探讨家兔糖尿病模型胰岛素用药治疗的适宜方案。方法利用四氧嘧啶制作家兔糖尿病模型,设计了多次胰岛素治疗组（A组）、50R预混胰岛素治疗组（B组）、30R预混胰岛素治疗组（c组）3种治疗方案,共治疗30d,记录血糖达标时间及达标时Ins剂量,并与未治组、对照组比较血糖、胰岛素抗体及组织病理学变化;用苏木素-红染色（HE染色法）标记观察胰岛组织片及胰岛凋亡细胞。结果B组的达标胰岛素用量为（5．62±0．67）U／kg,较A、C少,C达标时胰岛素用量最多为（8．83±1．17）U／kg,差异有统计学意义（P〈0.01）。A组血糖达标时间最短为（7．00±1．31）d、C组血糖达标时间最长为（19．63±1．41）d,各组间比较差异有统计学意义（P〈0．001）。胰岛素抗体结合率C组最高,与A、B组比较差异有统计学意义（P〈0．01）。C组胰岛损害最轻,胰岛凋亡细胞最少。各治疗组胰岛受损和凋亡严重程度A〉B〉C。结论30R预混胰岛素治疗方案最佳。提供一个较高的基础胰岛素浓度加少量餐时胰岛素峰值量治疗糖尿病,血糖平稳缓降,对糖尿病胰岛细胞有治疗和保护作用。多次胰岛素3短加1中的强化治疗及太短时间达标的方法不可首选。     

血清HE4、TSGF和CA125联合检测诊断卵巢癌的价值

目的：探讨血清人附睾蛋白4(HE4)、肿瘤特异性生长因子(TSGF)和肿瘤抗原(CA125)联合检测对卵巢癌的诊断价值。方法选取卵巢癌患者70例为研究对象,另选择60例卵巢良性肿瘤患者为对照组,检测并比较卵巢良性肿瘤、卵巢癌Ⅰ期及卵巢癌Ⅱ、Ⅲ期间HE4、CA125及TSGF水平的差异。观察HE4、CA125及TSGF与卵巢癌侵袭性关系(周围浸润、淋巴结转移及复发),并分析单项指标及联合应用对卵巢癌诊断的敏感性、特异性、阳性预测值、阴性预测值及诊断效率。结果卵巢良性肿瘤、卵巢癌Ⅰ期及卵巢癌Ⅱ、Ⅲ期三组比较, HE4、CA125及TSGF呈递增趋势,且三组间比较差异具有统计学意义(P<0.05)。与不伴有周围浸润、淋巴结转移及复发的卵巢癌比较,存在周围浸润、淋巴结转移及复发的卵巢癌患者HE4、CA125及TSGF水平均显著升高,差异具有统计学意义(P<0.05)。单项比较,CA125诊断敏感性最高,HE4诊断特异性及诊断效率最高。与单项指标比较,联合检测的敏感性、阳性预测值、阴性预测值及诊断效率更高,且差异具有统计学意义(P<0.05)。结论血清HE4、TSGF和CA125联合检测对卵巢癌诊断效率高,值得临床推广应用。