咳尔康口服液体外抑菌作用的研究

Objective To analyze the effect of Kecrkang oral Liquid on extracorporeal bacteriostasis. Methods Tube dilution method was adopted to test the effect of different concentrations of Keerkang oral liquid on bacillus coli, klebsiella pneumoniae, bacillus aeruginosus, staphylococcus aureus, staphylococcus epidermidis, β-Streptococcus hemolyticus, streptococcus pneumoniae, haemophilus influenzae and candida albicans. Results Keerkang Oral Liquid has obvious inhibited effects to all the bacteria that mentioned above. Conclusion Keerkang Oral Liquid has obvious extracorporeal bacteriostasis and resistance to fungi.     

Antitumor effects of bortezomib (PS-341) on primary effusion lymphomas.

Primary effusion lymphomas (PELs) are a rare type of non-Hodgkin's lymphoma that are resistant to cytotoxic chemotherapy. PELs manifest constitutive activation of nuclear factor kappa B (NF-kappaB), and inhibition of NF-kappaB induces apoptosis of PELs and sensitizes to tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)-induced death. Bortezomib (PS-341), a peptidyl boronic acid inhibitor of the proteasome, is a potent agent against a wide range of hematologic malignancies and has been shown to inhibit NF-kappaB. Thus, we examined the cytotoxic effects of bortezomib alone and in combination with various drugs. Bortezomib potently inhibited NF-kappaB in PEL cells in a dose-dependent manner. In addition, bortezomib inhibited growth and induced apoptosis of PEL cell lines (IC(50) values of 3.4-5.0 nM). Results of drug interactions between bortezomib and chemotherapy (doxorubicin and Taxol) were schedule-dependent: synergistic interactions were generally observed when PEL cells were pretreated with bortezomib prior to chemotherapy, whereas additive or even antagonistic interactions occurred with chemotherapy pretreatment or simultaneous treatment with bortezomib and chemotherapy. Most schedules of bortezomib and dexamethasone were synergistic, although pretreatment with dexamethasone resulted in additive interactions. Effects of combinations of bortezomib and TRAIL were generally additive. Thus, bortezomib represents a promising potential therapy for the treatment of PEL.     

Thl Bias in PBMC Induced by Large Scale Auto-CIK Infusion in Malignant Solid Tumor Patients in China

OBJECTIVE This article is to verify feasibility and validity of autologous cytokine-induced killer cell (Auto-CIK) treatment in solid malignancypatients.METHODS Amplification, phenotypic characteristics, cytokine secretion,antitumor cytotoxicity and clinical response to Auto-CIK derived from 65cases of solid tumor patients with different pathological types and clinicalstages were compared with LAKs in a large-scale clinical trial,RESUL‘r$ We found that seriousness of disease and metastatic status hadno influence on effective components and antitumor immunological activityof Auto-ClK. Comparing cytotoxicity against various tumor cells with LAKsat various effector to target ratios, ClKs showed more effective cytotoxicityagainst NK sensitive or non-sensitive solid tumor cell lines at a low E/T ratio(6:1) which suggests indirectly that Auto-CIK had a longer effective time invivo than LAKs. These results suggest that CIKs are more suitable forimmunotherapy for those solid malignancy patients at high risk of relapse orrecurrence.CONCLUSIONS Our experimental data were consistent ~ith the reportedconclusion that the potent antitumor activity of Auto-ClK mainly rooted in theCD4- part of CIKs, including CD3~CD56~ cells and CD8 ~ CTLs. The CD4~part of ClKs seemed to have no direct tumor lytic activity. The results indicatethat the special “Thl bias“ and enhanced cytotoxicity against K562 cellsoccurred in PBMCs after multicycles of Auto-ClK infusions suggesting theinduction of a “Thl shift“ and rectification of “Th2 dominance“ in PBMC afterAuto-CIK treatments.     

腰椎间盘退变动物模型的建立

目的　建立腰椎间盘退变的动物模型并行组织学和MRI观察。　方法　健康成年恒河猴 8只 ,手术组 6只 ,在其腰4 ,5、腰5,6、腰6,7椎间盘分别作一 5mm× 3mm切口 ,分别于术前及术后 1、4、8、13、2 0周对手术椎间盘行MRI观察 ;8只恒河猴分别于术前 (对照组 )及术后 4、8、2 0周随机取 2只处死后行椎间盘组织学观察。　结果　正常成年恒河猴腰椎间盘组织学结构特点与人类相似 ;手术椎间盘高信号区域面积的百分比于术后 8、13、2 0周显著减少 (P <0 0 5 ) ;术后 4周椎间盘切口外被纤维组织覆盖 ,术后 8周 ,切口外层纤维样愈合 ,其内无愈合迹象 ,术后 2 0周 ,切口向椎间盘内延伸 ,部分髓核出现纤维化。　结论　恒河猴是一种生理特性与人类相接近的动物 ,以其为对象应用纤维环切开法可以获得可靠的腰椎间盘退变动物模型 ;通过测量MRI轴位T2加权像椎间盘高信号区域面积百分比的方法可于早期无损伤地发现椎间盘退变。     

多参数流式细胞术观察251例白血病细胞CD14表达的意义

目的　探讨 CD14在白血病细胞的表达及其在白血病诊断和鉴别诊断中的意义。方法　采用 CD45 /SSC参数设门多色流式细胞术分析 2 5 1例白血病细胞 CD14及其它白血病相关抗原的表达情况。结果　 2 5 1例中有 19例 ( 7.5 % )白血病细胞表达 CD14,95例急性髓系白血病 ( AML )中 16例 ( 16 .8% )白血病细胞表达 CD14,130例淋系白血病未见 CD14阳性的病例。 M4和 M5b CD14的阳性率 ( 9/ 14;6 / 6 )明显高于 M2 ( 1/ 30 ) ( P=0 .0 0 1;P=3.6× 10 - 6 )及 M5a( 0 / 5 ) ( P=0 .0 3;P=2 .2× 10 - 3 )。标准 CD14单抗均不与 5例 M5a细胞反应 ,而自制 CD14新克隆 2 F9单抗则全部阳性。5例 M5a中 1例 CD15和 2 9例 M2 中 13例 CD11b的阳性率明显低于 M5b( 6 / 6 ,P=0 .0 2 ;6 / 6 ,P=0 .0 2 )。在 AML 组中 ,CD14的表达与 CD117呈负相关 ( r=- 0 .2 ,n=81,P=0 .0 3) ,与 CD11b、CD15及HL A- DR呈正相关 ( r=0 .5 ,n=93,P=0 .0 0 1;r=0 .4,n=95 ,P=0 .0 0 1;r=0 .2 ,n=95 ,P=0 .0 2 )。结论　 CD14有助于淋巴系白血病、髓系白血病及其单核细胞相关性白血病的诊断与鉴别 ,其对单核细胞相关性白血病免疫分型诊断中的特异性为 96 .7% ,敏感性为 6 0 .0 %。     

宁夏枸杞采收制干SOP探讨与研究

目的:探索宁夏枸杞采收、制于规律,指导宁夏枸杞采收制干SOP的制定。方法:总结归纳宁夏枸杞采收制干现状,分析采收时间和间隔期以及制干方法对宁夏枸杞品质质量和产量的相关影响。结果与结论:正确掌握采收的最佳时机和适宜的制干方法是影响宁夏枸杞品质质量和产量的关键因素,科学合理制定宁夏枸杞采收制干SOP。     

Prospective comparison of the effect of direct current electrical stimulation and pulsed electromagnetic fields on instrumented posterolateral lumbar arthrodesis

The purpose of this prospective study was to compare the effect of adjunctive direct current (DC) electrical stimulation and pulsed electromagnetic field therapy (PEMF) on augmentation of instrumented lumbar fusion. Sixty-one patients undergoing lumbar spine fusion were enrolled in the study and randomized to one of three treatment protocols: 1) adjunctive PEMF group (n = 22) fitted with Spinal-Stim model 8212(AME) within 30 days of surgery; 2) DC group (n = 17) had a SpF-2T stimulator(EBI) implanted at the time of surgery; or 3) control group (n = 22). The fusion mass bone mineral density (BMD) assessment was performed on 3-month and 1-year radiographs for each patient. Lateral flexion-extension and anteroposterior radiographs were evaluated at 1 year to determine the presence of fusion. Clinical outcome patient analyses were performed at 1 year. At 1-year follow-up, radiographic fusion and fusion mass bone density were not significantly different among the groups. In the nonstimulated group, there were 43% excellent, 43% good, and 14% fair results. In the PEMF group, there were 35% excellent, 50% good, 10% fair, and 5% poor results. In the DC group, there were 32% excellent, 37% good, and 31% fair results. The results of the current study suggest that electrical stimulation does not significantly enhance fusion rate in instrumented lumbar arthrodesis, although we observed a statistically insignificant trend toward increased fusion mass BMD in the electrically stimulated groups. The significance of increased BMD remains unknown.     

Rapid and selective apoptosis in human leukemic cells induced by Aplidine through a Fas/CD95- and mitochondrial-mediated mechanism.

Aplidine is a promising antitumor agent derived from the Mediterranean tunicate Aplidium albicans. We have found that Aplidine at nM concentrations (10-100 nM) induced apoptosis in human leukemic cell lines and primary leukemic cell cultures from leukemic patients. Inhibition of the Fas (CD95)/Fas ligand (CD95L) signaling pathway with an antagonistic anti-Fas antibody partially inhibited Aplidine-induced apoptosis. L929 cells were resistant to Aplidine action but underwent apoptosis after transfection with human Fas cDNA. Aplidine induced a rapid and sustained c-Jun NH(2)-terminal kinase activation, and pretreatment with curcumin or SP600125 inhibited Aplidine-induced c-Jun NH(2)-terminal kinase activation and apoptosis. However, inhibition of extracellular signal-regulated kinase and p38 kinase signaling pathways did not affect Aplidine-induced apoptosis. Aplidine induced caspase-3 activation, and caspase inhibition prevented Aplidine-induced apoptosis. Aplidine failed to induce apoptosis in MCF-7 breast cancer cells, defective in caspase-3, additionally implicating caspase-3 in its proapoptotic action. Aplidine also triggered an early release of cytochrome c from mitochondria, and overexpression of bcl-2 by gene transfer abrogated mitochondrial cytochrome c release and apoptosis. Aplidine rapidly induced cleavage of Bid, a mediator that connects the Fas/CD95 cell death receptor to the mitochondrial apoptosis pathway. Primary cultures of normal human cells, including hepatocytes and resting peripheral blood lymphocytes, were spared or weakly affected after Aplidine treatment. Nevertheless, mitogen (phytohemagglutinin/interleukin-2)-activated T lymphocytes resulted sensitively to the apoptotic action of Aplidine. Thus, Aplidine is an extremely potent and rapid apoptotic inducer on leukemic cells that triggers Fas/CD95- and mitochondrial-mediated apoptotic signaling routes, and shows a rather selective apoptotic action on cancer cells and activated T cells.     

叠氮钠对SH—SY5Y人神经母细胞瘤细胞线粒体跨膜电位 …

目的 观察线粒体呼吸链复合体ＩＶ（即细胞色素Ｃ氧化酶）抑制剂叠氮钠（ＮａＮ３）对人神经母细胞瘤细胞能量代身的影响,探讨线粒体缺陷在神经退行性疾病发病中的作用。方法 将叠氮钠与培养的人神经母细胞瘤细胞系ＳＨ－ＳＹ５Ｙ细胞共同孵育,用微测量法测定线粒体复合体ＩＶ活性,噻唑兰（ＭＴＴ）法测定细胞存活率,激光共聚焦显微镜和流式细胞仪检测线粒体跨膜电位变化。结果 １６￣６４ｍｍｏｌ／Ｌ叠氮钠与培养的ＳＨ－Ｓ     

Intravenous Leiomyomatosis of the Uterus

Three cases of intravenous leiomyomatosis (IVL) of the uterus, a rare benign smooth-muscle tumor, are described. A preoperative diagnosis of IVL was not made in any of the patients, all of which presented with a pelvic mass with the presumptive diagnosis of leiomyoma. Surgical exploration confirmed the presence of uterine mass and two of the three cases showed extra-uterine extension into the ovarian or uterine veins. Histological examination demonstrated a fascicular pattern of bland spindle-shaped smooth-muscle cells, which extended to veins inside the myometrium or to extrauterine veins. This was confirmed by immunohistochemical stain for desmin and factor VIII. Despite their histological benignity, these lesions have a tendency to metastasize and are closely related to the conditions called “benign metastasizing leiomyoma” and “intracaval mass and cardiac extension”. The primary treatment of IVL is hysterectomy and excision of any extrauterine tumor, when technically feasible. Anti-estrogenic therapy has been suggested as potentially useful in controlling of unresectable tumor. According to the literature, the follow-up must be long and periodic postoperative ultrasonic or magnetic nuclear resonance imaging studies may be useful in detecting growth of residual intravascular tumor.