窄谱中波紫外线联合他克莫司软膏对银屑病患者血清因子水平的影响

目的:观察窄谱中波紫外线(NB-UVB)结合他克莫司软膏治疗寻常型银屑病患者临床相关指标(TNF-α、IL-13、IFN-γ和IL-4)的变化.方法:将60例寻常型银屑病患者随机分为NB-UVB治疗组、他克莫司软膏治疗组和NB-UVB结合他克莫司软膏治疗组,其中NB-UVB治疗组给予窄谱紫外线照射,辐射波长为311 nm;他克莫司软膏治疗组给予0.1%他克莫司软膏,涂搽惠处;联合治疗组给予窄谱紫外线照射,且患处涂搽0.1%他克莫司软膏.ELISA法测定血清中TNF-α、IL-13、IFN-γ和IL-4的变化.结果:联合治疗组患者血清中IFN-γ/IL-4比值为1.39±0.23,而TNF-α和IL-13的水平分别为17.28±1.22 pg/mL和46.75±3.19pg/mL,均显著低于其它两组(P<0.05).结论:窄谱中波紫外线(NB-UVB)结合他克莫司软膏治疗寻常型银屑病,可以提高紫外线光疗及免疫抑制剂的疗效,起到协同治疗的作用,从而缩短病人的用药周期和治疗疗程.     

银屑灵联合阿维A治疗寻常型银屑病的疗效研究

目的:比较银屑灵联合阿维A治疗寻常型银屑病的疗效及安全性.方法:96例寻常型银屑病患者随机分为3组:银屑灵治疗组(32例)、阿维A治疗组(32例)与银屑灵联合阿维A治疗组(32例).其中,银屑灵组每天服用银屑灵30g;阿维A治疗组初始剂量为每天服用阿维A25mg,每5天后剂量增加15mg/d,直至剂量为55mg/d后维持该剂量;银屑灵联合阿维A治疗组的用药方式为二者单独用药的叠加;持续服药8周,采用银屑病严重程度评分评价3组患者治疗前后的疗效并记录不良反应.结果:持续服药8周后,三组治疗效果由好到差依次为:银屑灵联合阿维A胶囊治疗组、阿维A胶囊治疗组、银屑灵治疗组.PASI评分发现三组治疗前后的差异均有统计学意义(P<0.05),治疗前后银屑灵联合阿维A胶囊治疗组与其它两组对应的时间点的PASI评分的差异均有统计学意义(P<0.05).结论:银屑灵联合阿维A胶囊治疗寻常型银屑病的疗效高,相对安全,值得推广使用.     

清热散结片联合阿维A胶囊治疗难治性银屑病的疗效及对炎症反应的影响

目的:分析清热散结片联合阿维A胶囊治疗难治性银屑病的疗效,并探讨其对炎症反应的影响。方法:选择2013年3月-2016年3月我院收治的100例难治性银屑病患者作为研究对象,按照随机数字表法分为对照组和观察组,每组各50例;对照组给予口服阿维A胶囊,观察组在对照组的基础上给予口服清热散结片;对比两组的临床疗效及不良反应发生情况,检测治疗前后血清肿瘤坏死因子(TNF-α)、白细胞介素-8(IL-8)及白细胞介素-4(IL-4)水平变化。结果:观察组的总有效率为96.00%(48/50),显著高于对照组的84.00%(42/50),差异有统计学意义(P0.05);治疗前两组TNF-α、IL-8及IL-4的水平对比,差异无统计学意义(P0.05),治疗后两组TNF-α、IL-8及IL-4水平均有所降低,且观察组显著低于对照组,差异有统计学意义(P0.05);治疗期间,两组无严重不良反应,差异无统计学意义(P0.05)。结论:清热散结片联合阿维A胶囊治疗难治性银屑病的疗效显著,能够明显缓解患者机体的炎性反应,值得临床推广应用。     

凉血活血汤联合阿维A胶囊治疗银屑病的临床疗效及其机制研究

目的:探讨凉血活血汤联合阿维A胶囊治疗银屑病的临床疗效及其可能作用机制。方法:选择2012年7月~2015年11月于我院就诊的银屑病患者60例,按照就诊先后顺序分为实验组与对照组,每组各30例,实验组患者使用凉血活血汤联合阿维A胶囊进行治疗,对照组患者仅给予阿维A胶囊进行治疗。比较治疗前后两组患者血清白细胞介素17(IL-17)、白细胞介素22(IL-22)、白细胞介素23(IL-23)及血管内皮因子(VEGF)水平,同时比较两组患者的不良反应发生率及临床总有效率。结果:与治疗前相比,两组患者血清IL-17、IL-22、IL-23及VEGF水平均降低;治疗结束后与对照组相比,实验组患者血清IL-17、IL-22、IL-23及VEGF水平较低(P0.05);且与对照组相比,实验组患者的不良反应发生率较低(P0.05);临床总有效率较高(P0.05)。结论:凉血活血汤联合阿维A胶囊能明显提高银屑病患者的临床疗效,且安全性较高,可能与其降低血清IL-17、IL-22、IL-23及VEGF水平有关。     

窄谱中波紫外线联合复方甘草酸苷片治疗手部湿疹的疗效观察及对外周血IFN-γ、IL-4水平的影响

目的：探讨窄谱中波紫外线（NB—UVB）联合复方甘草酸苷片治疗手部湿疹的的疗效及其对外周血疗效观察IFN-γ、IL-4水平的影响。方法：选取手部湿疹患者160例,随机分为观察组与对照组,每组各80例。对照组给予尿素乳膏涂于患处,观察组采用NB-UVB皮损局部照射联合复方甘草酸苷片治疗,均连续治疗4周。治疗前后观察临床表现、EASI评分、血清IFN-γ、IL-4,记录不良反应。结果：治疗后,观察组与对照组总有效率分别为90．00％、72．50％（P〈0．05）,EASI评分均不同程度的降低（P〈0．01或P〈0．05）,且观察组EAsI评分低于对照组（P〈0．05）;观察组血清WN-γ水平降低,几4升高（P〈0．05）,且与对照组相应指标比较,差异具有统计学意义（P〈0．05）。两组均未见明显的不良反应。结论：窄谱中波紫外线联合复方甘草酸苷片治疗手部湿疹具有较高的临床总有效率,改善了手部湿疹的皮损状况,调节了Th1／Th2细胞因子趋于平衡,且具有较高的安全性,对手部湿疹的临床治疗具有一定的指导意义。     

小剂量维胺酯联合氟康唑治疗角化型足癣疗效观察

目的 观察小剂量维胺酯联合氟康唑治疗角化型足癣疗效.方法 全部患者随机分成两组,治疗组185例,对照组180例.治疗组餐后服用维胺酯胶囊,根据患者体重,按1 mg/（kg＆#183;d）,分3次口服;同时服用氟康唑片,150 mg/次,每周1次.对照组只服用氟康唑片,150 mg/次,每周1次.两组均外用硝酸咪康唑乳膏.4周后进行临床疗效及真菌学疗效评价.结果 治疗4周时,治疗组总有效率95.7％,对照组总有效率68.9％.结论 小剂量维胺酯联合氟康唑治疗角化型足癣疗效高,副作用小,疗程短,值得临床推广应用.     

钙泊三醇倍他米松软膏联合NB-UVB对掌跖脓疱病患者血清TNF-α,IL-17水平的影响

目的:观察钙泊三醇倍他米松软膏联合窄谱中波紫外线(NB-UVB)治疗掌跖脓疱病的临床疗效及对患者血清肿瘤坏死因子-α(TNF-α)、白细胞介素-17(IL-17)水平的影响。方法:选取掌跖脓疱病患者63例,随机分为治疗组和对照组,治疗组外用钙泊三醇倍他米松软膏联合NB-UVB治疗,对照组单纯照射NB-UVB,两组患者的疗程均为8周,治疗4周及8周后观察临床疗效,并测定血清中TNF-α、IL-17的浓度。结果:治疗4周和8周后,治疗组症状积分较对照组明显下降,差异有统计学意义(P0.05);治疗4和8周时,对照组的有效率分别为22.58%和45.16%,治疗组为53.13%和78.13%,两组患者的有效率比较差异显著(P0.05);停药后3个月,对照组复发率为35.48%,治疗组复发率为12.50%,治疗组明显低于对照组;治疗后两组患者血清中TNF-α、IL-17的浓度均较前下降,且治疗组较对照组下降更明显,差异具有统计学意义(P0.05)。结论:钙泊三醇倍他米松软膏辅助治疗可以更有效提高掌跖脓疱病患者的临床疗效,且安全性较好,这可能与其降低患者外周血中TNF-α和IL-17的水平有关。     

复方甘草酸苷联合中药熏蒸及窄谱紫外线治疗银屑病效果分析

目的：分析复方甘草酸苷联合中药熏蒸及窄谱紫外线治疗银屑病的临床治疗效果。方法：观察组患者给予复方甘草酸苷联合中药熏蒸及窄谱紫外线治疗,对照组患者给予复方甘草酸苷治疗。观察比较两组患者的治疗效果。结果：观察组患者治疗后PASI评分为（4．0±2．1）分明显低于对照组的（7．6±2．4）分,两组比较差异具有统计学意义（P〈0．05）;观察组的复发率为17．7％明显低于对照组的45．2％,两组比较差异具有统计学意义（P〈0．05）;观察组的总有效率为88．71％,明显高于对照组的74．19％,两组比较具有显著性差异（P〈0．05）。结论：复方甘草酸苷联合中药熏蒸及窄谱紫外线用于治疗银屑病,临床效果显著,值得在临床上推广应用。     

封包联合窄波UVB治疗寻常型银屑病疗效观察及护理体会

目的:探讨封包联合窄波UVB治疗寻常型银屑病疗效及护理方法。方法:自2010年2月至2011年8月到我院治疗的142例寻常型银屑病患者分为两组,治疗组予封包联合窄波UVB治疗并配合精心护理,对照组仅予封包治疗,两组均在治疗6周后观察症状及体征的变化。患者治疗后随访半年。结果:治疗组较对照组第4周PASI评分(4.33±3.23 vs 6.24±3.35)和第6周PASI评分(2.32±2.02 vs 3.68±2.52)明显降低,有统计学差异(P<0.05)。治疗组与对照组有效率分别为85.89%和67.19%,差异有显著统计学意义(P<0.01)。随访半年结果治疗组复发率较对照组少(P<0.05)。结论:封包联合窄波UVB治疗寻常型银屑病并配合精心护理能够取得良好的临床治疗效果。     

秋水仙碱联合窄谱中波紫外线治疗掌跖脓疱病的临床研究

观察秋水仙碱联合窄谱中波紫外线(NB-UVB)治疗掌跖脓疱病的疗效及对血清肿瘤坏死因子-α(TNF-α)、白细胞介素-8(IL-8)的影响。选择我院皮肤科2011年12月~2015年12月收治的掌趾脓疱病患者88例,按照随机表法将88例患者分为对照组(n=44)和观察组(n=44)。对照组采用NB-UVB照射,隔日1次;观察组采用NB-UVB照射,隔日1次,同时口服秋水仙碱片,两组均连续治疗6周。6周后评价两组临床治疗效果,治疗前后测定患者血清中TNF-α和IL-8的水平,并观察治疗的不良反应。结果显示,治疗6周后,观察组患者的有效率79.5%(35/44)明显高于对照组61.3%(27/44)(p0.05);两组患者治疗前的血清TNF-α、IL-8水平之间对比后无明显差异(p0.05),对照组患者治疗后的血清TNF-α、IL-8水平分别为(10.74±3.25)ng/L和(9.52±2.85)ng/L,观察组分别为(6.24±2.33)ng/L和(5.81±2.20)ng/L,以上指标较治疗前均有显著降低,与对照组相比观察组下降幅度更大(p0.05)。本研究结果表明,秋水仙碱联合NB-UVB照射治疗掌跖脓疱病疗效好,不良反应少,可减少血清中炎症因子TNF-α和IL-8的水平,为治疗掌趾脓疱病提供了新思路。     

Recent advances in the study of Kaposi's sarcoma-associated herpesvirus replication and pathogenesis

It has now been over twenty years since a novel herpesviral genome was identified in Kaposi's sarcoma biopsies. Since then, the cumulative research effort by molecular biologists, virologists, clinicians, and epidemiologists alike has led to the extensive characterization of this tumor virus, Kaposi's sarcoma-associated herpesvirus(KSHV; also known as human herpesvirus 8(HHV-8)), and its associated diseases. Here we review the current knowledge of KSHV biology and pathogenesis, with a particular emphasis on new and exciting advances in the field of epigenetics. We also discuss the development and practicality of various cell culture and animal model systems to study KSHV replication and pathogenesis.     

The structure, reproduction and taxonomy of Vidalia and Osmundaria (Rhodophyta, Rhodomelaceae)

Comprises species occurring mostly in subtidal habitats in tropical, subtropical and warm-temperate areas of the world. An analysis of the type species, V. spiralis (Sonder) Lamouroux ex J. Agardh, a species from Australia, establishes basic characters for distinguishing species in the genus. These characters are (1) branching patterns of thalli, (2) flat blades that may be spiralled on their axis, (3) width of the blade, (4) primary or secondary derivation of sterile and fertile branchlets and (5) position of sterile and fertile branchlets on the thalli. Application of the latter two characters provides an important basic method for separation of species into three major groups. Osmundaria , a genus known only in southern Australia, was studied in relation to Vidalia , and its separation from the Vidalia assemblage is not accepted. Species of Vidalia therefore are transferred to the older genus name, Osmundaria. Two new species, Osmundaria papenfussii and Osmundaria oliveae are described from Natal. Confusion in the usage of the epithet, Vidalia fimbriala Brown ex Turner has been clarified, and Vidalia gregaria Falkenberg, described as an epiphyte on Osmundaria pro/ifera Lamouroux, is revealed to be young branches of the host, Osmundaria prolifera.     

New or rare chromosome counts in Artemisia L. (Asteraceae, Anthemideae) and related genera from Kazakhstan

Fifteen chromosome counts of six Artemisia taxa and one species of each of the genera Brachanthemum, Hippolytia, Kaschgaria, Lepidolopsis and Turaniphytum are reported from Kazakhstan. Three of them are new reports, two are not consistent with previous counts and the remainder are confirmations of very scarce (one to four) earlier records. All the populations studied have the same basic chromosome number, x = 9, with ploidy levels ranging from 2x to 6x. Some correlations between ploidy level, morphological characters and distribution are noted.     

肝癌中HBV和HCV基因和抗原的分布及意义

采用原位分子杂交方法检测HCV RNA及HBV X基因;采用免疫组织化学方法研究HCV核心抗原,非结构区C33c抗原及HBxAg在肝细胞肝癌中的定位及分布.结果表明(1)HCV RNA、HBV X基因在肝细胞肝癌组织检出率分别为40%(55/136)和82%(112/136).HCV RNA定位于癌细胞的胞浆内,阳性细胞呈散在、灶状及弥漫分布三种形式;HBV X基因在肝癌细胞中的分布呈胞浆型、核型及核浆型,阳性细胞也呈上述三种分布形式;(2)HCV C33c抗原、核心抗原在肝细胞肝癌中的阳性率为81%(133/164)及86%(141/164).C33c抗原定位于癌细胞及肝细胞的胞浆内;核心抗原既定位于癌细胞核中,又可定位于胞浆中.C33c抗原阳性细胞以灶状分布为主;而核心抗原阳性细     

Selection with two alleles and complete dominance

For a plant selection model with frequency-independent viabilities, fertilities and selfing rates, it is shown that apart from global fixation, for certain parameter combinations a protected polymorphism and facultative fixation (either allele may become fixed according to initial frequencies) may both occur. Facultative fixation requires different selling rates for the dominant and recessive type. Protection of the polymorphism requires resource allocation for male and female function. In this connection the problem of purely genetically caused population extinction is discussed.
For general frequency dependence and regular segregation, the chances for establishment of a completely recessive gene are compared to those of a completely dominant gene. It is proven that the process of establishment of the recessive gene, despite a fitness advantage, may be considerably endangered by drift effects if random mating prevails. The recessive gene may reach the same effectivity in establishment as a dominant gene, only if the recessive homozygote mates exclusively with its own type during the period of establishment.