A型肉毒毒素联合CO2点阵激光治疗眼周皱纹的近期疗效评估

目的:探讨A型肉毒毒素联合CO_2点阵激光治疗眼周皱纹的近期临床疗效。方法:选择2013年6月到2014年6月我院接收眼部皱纹改善手术的患者90例,随机分为激光组、肉毒毒素组及联合治疗组,各30例,分别给予CO_2点阵激光治疗、A型肉毒毒素注射和A型肉毒毒素注射联合CO_2点阵激光治疗。所有患者在治疗后7 d、1月及3月进行疗效随访评价,比较三组不良反应情况。结果:三组患者眼周皱纹均有所改善,治疗1个月时效果最为明显。激光组的静态皱纹治疗效果明显,对动态皱纹治疗效果不明显;肉毒毒素组对动态皱纹治疗效果明显,对静态皱纹治疗效果不明显;联合治疗组对静态皱纹和动态皱纹均有明显的改善,其满意度评价总分数明显高于其他两组。三组患者对CO_2点阵激光和注射A型肉毒毒素所引起疼痛均能耐受,安全性好。结论:A型肉毒毒素联合CO_2点阵激光对静态皱纹和动态皱纹均有明显的改善作用,且不良反应轻,安全性好。     

光动力疗法联合复方倍他米松对增生性瘢痕患者负性情绪和瘢痕组织p-STAT3、Egr-1表达的影响

目的:探讨光动力疗法联合复方倍他米松注射液局部封闭治疗增生性瘢痕(HS)的临床疗效及对患者负性情绪和瘢痕组织酪氨酸磷酸化STAT3(p-STAT3)、早期生长因子-1(Egr-1)表达的影响。方法:选取我院于2016年1月～2017年6月期间收治的HS患者118例,采用随机数字表法将患者随机分为对照组(n=59)和研究组(n=59),对照组给予复方倍他米松注射液治疗,研究组在对照组基础上联合光动力疗法治疗,两组患者均治疗4个月。比较两组患者临床疗效、瘢痕评分、负性情绪、瘢痕组织p-STAT3、Egr-1表达量,记录两组治疗期间不良反应发生情况。结果:研究组患者治疗后的临床总有效率为81.36%(48/59),高于对照组的54.24%(32/59)(P0.05)。治疗后随着时间的延长,温哥华瘢痕评定量表(VSS)、北卡罗来纳大学瘢痕量表评分不断下降,且研究组低于对照组(P0.05)。两组患者治疗后1年焦虑自评量表(SAS)、抑郁自评量表(SDS)评分低于治疗前,且研究组低于对照组(P0.05)。两组患者治疗后1个月瘢痕组织p-STAT3、Egr-1表达量低于治疗前,且研究组低于对照组(P0.05)。治疗期间两组不良反应发生率比较无差异(P0.05)。结论:光动力疗法联合复方倍他米松注射液局部封闭治疗HS,安全有效,可有效改善瘢痕症状,减轻患者负性情绪,降低瘢痕组织中p-STAT3、Egr-1表达。     

不同能量CO2点阵激光对博来霉素诱导的小鼠增生性瘢痕的作用及Hedgehog信号通路的影响

目的:探讨不同能量CO_2点阵激光对博莱霉素诱导的小鼠增生性瘢痕模型的作用及其对瘢痕组织中Hedgehog信号通路的影响。方法:于雄性C57BL/6J小鼠背部皮肤注射博来霉素(1 mg/d,4周)制作增生性瘢痕模型,另取4只小鼠背部注射PBS缓冲液作为对照。造模成功之后,随机将小鼠分为瘢痕对照组(模型组),10 mj激光治疗组(10 mj组)和20 mj激光治疗组(20 mj组),每组6只小鼠。10 mj组小鼠给予10 mj激光治疗(共3次,每次间隔2周);20 mj组小鼠给予20 mj激光治疗(共3次,每次间隔2周)。治疗结束后,处死小鼠,取瘢痕全层标本进行病理组织学染色观察(HE、Masson染色)以及α-平滑肌肌动蛋白(α-SMA)、GLi1免疫荧光观察。结果:①我们成功复制出小鼠增生性瘢痕模型;②20 mj CO_2点阵激光治疗可有效修复瘢痕组织,经治疗后皮肤瘢痕程度显著减轻,同时可降低真皮层厚度和减轻瘢痕组织的纤维化程度;③免疫荧光染色结果提示,CO_2点阵激光可显著减少小鼠皮肤增生性瘢痕中α-SMA、GLi1表达。结论:于小鼠的背部皮肤注射博莱霉素可建立增生性瘢痕模型。CO_2点阵激光为治疗增生性瘢一种有效的治疗方式,其作用可能与其对Hedgehog信号通路的抑制有关。     

低温等离子与CO_2激光微创治疗早期声门型喉癌疗效及安全性比较

目的:探讨低温等离子与CO_2激光微创治疗早期声门型喉癌的疗效及安全性。方法:收取2014年5月至2016年4月间我院收治的早期声门型喉癌患者79例作为研究对象进行回顾性分析,按照治疗方式的不同将其分为观察组42例及对照组37例。观察组行低温等离子射频消融治疗,对照组行CO_2激光微创治疗。比较两组患者手术时间、术中出血量及疼痛程度评分、嗓音学指标、声带形态学评分、术后生活质量以及并发症发生情况。结果:观察组手术时间明显短于对照组(P0.05);两组患者术中出血量及术后疼痛程度评分无显著差异(P0.05)。治疗后各声学指标较治疗前显著下降,差异均有统计学意义(P0.05)。观察组各指标均低于对照组,差异有统计学意义(P0.05)。手术后两组患者声带形态学评分均较治疗前显著下降,术后1个月时观察组评分显著低于对照组(P0.05)。观察组术后生活质量各维度均明显优于对照组,差异有统计学意义(P0.05)。所有患者术后均未发现严重并发症及复发。结论:低温等离子与CO_2激光微创治疗早期声门型喉癌均具有良好安全性,但低温等离子患者术后恢复情况优于CO_2激光治疗,值得临床推广应用。     

雷珠单抗联合视网膜激光光凝术对BRVO继发黄斑水肿患者视网膜电图P1波及生活质量的影响

目的:探讨雷珠单抗联合视网膜激光光凝术对视网膜分支静脉阻塞(BRVO)继发黄斑水肿患者视网膜电图P1波及生活质量的影响。方法:选取2017年1月~2019年8月期间我院收治的BRVO继发黄斑水肿患者60例,根据随机数字表法分为对照组(n=30)和研究组(n=30),对照组患者予以雷珠单抗治疗,研究组则在对照组的基础上联合视网膜激光光凝术治疗,比较两组患者疗效、视网膜电图P1波、生活质量及不良反应。结果:研究组治疗后6个月的临床总有效率为93.33%(28/30),高于对照组的70.00%(21/30)(P<0.05)。两组患者治疗后1个月、治疗后3个月、治疗后6个月健康调查简表(SF-36)评分均升高,且研究组高于对照组(P<0.05)。两组治疗后6个月视力升高,黄斑中心视网膜厚度(CMT)、眼压降低(P<0.05);研究组治疗后6个月视力高于对照组,CMT、眼压低于对照组(P<0.05)。研究组治疗后6个月1环、2环、3环的P1波振幅密度高于对照组(P<0.05);而1环、2环、3环的P1波潜伏期低于对照组(P<0.05)。两组不良反应发生率对比无差异(P>0.05)。结论:BRVO继发黄斑水肿患者经视网膜激光光凝术联合雷珠单抗治疗后,疗效显著,可有效提高视力及生活质量,改善黄斑水肿及病变区域的视网膜功能,且不增加不良反应发生率。     

中度烧伤患者深Ⅱ度烧伤创面血清EPO水平表达的临床意义

目的:探究血清红细胞生成素(EPO)水平在深Ⅱ度烧伤创面的临床作用。方法:在我院中度烧伤治疗61例患者中随机选择深Ⅱ度烧伤创面120个,根据患者EPO水平的中位数倍数(MOM)分为三组,另选择40例健康体检者作为对照组;评价并比较各组血清EPO水平及三组患者创面的愈合时间、6个月后创面面积的愈合率以及瘢痕评分。结果:烧伤12d后患者血清EPO水平为(19.55±8.37)U/L,显著高于对照组的(7.78±3.29)U/L(t=8.658,P0.001);三组患者间的创伤面愈合时间、6个月愈合率以及患者6个月瘢痕VSS评分的色泽、厚度、柔软度及血管分布均存在显著差异(P0.05);且治疗6个月后患者深Ⅱ度烧伤创面愈合率与血清EPO水平呈现正相关关系(r=0.35,P0.05);血清EPO水平与患者创伤愈合时间、患者6个月瘢痕VSS评分的色泽、厚度、柔软度及血管分布评分均呈现负相关关系(r=-0.29,r=-0.38,r=-0.47,r=-0.45,r=-0.49;P0.05)。结论:血清EPO水平可以促进中度烧伤患者深Ⅱ度烧伤创面的愈合,缩短创伤面恢复的时间,提高愈合及愈合质量,在临床实践中值的推广应用。     

全蝎软膏对糖尿病皮肤溃疡大鼠模型EGF、PDGF及其受体表达的影响

摘要 目的：探讨全蝎软膏对糖尿病皮肤溃疡大鼠模型EGF、PDGF及其受体表达的影响及创面愈合的机理。方法：60只大鼠随机分为对照组、模型组、湿润烧伤膏组和全蝎软膏组,每组15只。建立糖尿病皮肤溃疡大鼠模型,干预后7天及14天,观察并比较大鼠创面愈合率和血清中表皮生长因子(epidenllal giiilllh factor, EGF)、血小板衍生生长因子(platelet -derived growth factor, PDGF)及其受体水平。结果：全蝎软膏组、湿润烧伤膏组与模型组7 d、14 d同时间点比较创面愈合率,差异有统计学意义(P＜0.05或 P＜0.01);全蝎软膏组、湿润烧伤膏组7 d、14 d同时间点比较,差异无统计学意义(P＞0.05)。免疫组化结果显示,EGF的表达水平,全蝎软膏组、湿润烧伤膏组与模型组比较,7 d差异有统计学意义(P＜0.05);14 d差异无统计学意义(P＞0.05)。EGFR 的表达水平,全蝎软膏组与湿润烧伤膏组、模型组、空白组7 d、14 d同时间点比较,差异无统计学意义(P＞0.05)。PDGFB的表达水平,全蝎软膏组、湿润烧伤膏组与模型组7 d、14 d同时间点比较,差异有统计学意义(P＜0.05)。PDGFRB的表达水平,7 d全蝎软膏组与湿润烧伤膏组、模型组、空白组比较,差异无统计学意义(P＞0.05);14 d全蝎软膏组、湿润烧伤膏组与模型组比较,差异有统计学意义(P＜0.05或P＜0.01)。结论：全蝎软膏可影响糖尿病皮肤溃疡大鼠模型EGF、PDGF及其受体的表达,促进糖尿病创面愈合。     

早期整形手术在深Ⅱ度烧伤患者治疗中的作用

为了探讨早期整形外科手术治疗对深Ⅱ度烧伤创面愈合后瘢痕挛缩畸形及功能障碍的影响,本研究选择深Ⅱ度烧伤患者60例作为研究对象,对患者进行早期功能性部位整形手术,其中研究组34例,对照组26例。对照组患者使用常规治疗和功能锻炼;研究组在对照组的基础上,使用瘢痕组织切除术、中厚皮肤移植术和术后功能锻炼,比较2组治疗后疗效的差异。研究结果表明,研究组34例烧伤患者接受整形手术后,各部位平均植皮成活率均达90%以上。术后第3个月和半年2组关节功能恢复效果不显著。研究组患者术后1年的关节功能恢复和疗效均显著优于对照组(p<0.05)。初步结论表明,研究组总有效率(100%)显著高于对照组(81.25%, p<0.05)。深Ⅱ度烧伤患者创面愈合后进行早期功能部位整形手术治疗能有效改善患处瘢痕挛缩导致的关节功能障碍。     

坦索罗辛联合索利那新对老年男性膀胱过度活动症患者的临床疗效及其作用机制

目的:探究坦索罗辛联合索利那新对老年男性膀胱过度活动症患者的临床疗效及其可能的作用机制。方法:收集我院泌尿科收治的老年男性膀胱过度活动症患者100例,根据随机对照表分为对照组和试验组,各50例,2组均实施常规治疗以及对症治疗,对照组给予盐酸莫西沙星片及盐酸坦索罗辛缓释胶囊,试验组在对照组的基础上联合给予琥珀酸索利那新片。两组7天为一个治疗周期,共治疗12个周期。治疗后,对比分析两组的临床疗效、治疗前后储尿期症状评分(USPSS)、排尿期症状评分(VSS)、OABSS评分、尿液神经生长因子水平、P2X3受体表达情况以及不良反应的发生情况。结果:治疗后,与对照组相比,试验组临床总有效率较高(P0.05),USPSS、VSS、OABSS评分较低(P0.05),尿液神经生长因子水平及P2X3表达较低(P0.05),两组不良反应比较,差异无统计学意义(P0.05)。结论:坦索罗辛联合索利那新对老年男性膀胱过度活动症患者的临床疗效显著,安全性高,这可能与其显著降低尿液神经生长因子以及P2X3受体表达水平有关。     

点阵CO_2激光联合1%卢立康唑乳膏外用封包治疗甲真菌病疗效观察

目的观察超脉冲点阵CO_2激光联合1%卢立康唑乳膏外用封包治疗甲真菌病的疗效及安全性。方法共募集甲真菌病患者60名,总计223个病甲。患者随机分为A、B两组。其中A组患者病甲予超脉冲点阵CO_2激光治疗,每两周1次,共6个月;B组患者病甲予每两周1次超脉冲点阵CO_2激光治疗,联合每日1%卢立康唑乳膏外用封包于病甲8h,共持续治疗6个月。在治疗结束后3个月进行临床及真菌学评价。结果 60例患者均完成治疗及随访,A组31例患者共计108个病甲,治疗结束后3个月临床有效率为50.9%,真菌清除率为38.9%;B组29例患者共计115个病甲,治疗结束后3个月临床有效率为69.6%,真菌学清除率为57.4%。B组临床有效率及真菌清除率均显著高于A组,差异有统计学意义(P0.05)。治疗结束后3个月,A、B两组患者满意度评价分别为87.1%和93.1%。两组治疗中,除激光治疗时出现轻微可耐受疼痛外,均无其他不良反应出现。结论超脉冲点阵CO_2激光联合1%卢立康唑乳膏外用封包治疗甲真菌病是一种安全有效的方法,其疗效优于单纯点阵CO_2激光治疗。     

Characteristics of the membranes of the pellicle of the ciliatePseudomicrothorax dubius

Summary The membranes of the pellicle of the ciliatePseudomicrothorax dubius are investigated using thin section electron microscopy and freeze-fracture replicas. The plasma membrane is covered by a surface coat and is connected to the outer alveolar membrane by short, sometimes branched, bridges. The inner alveolar membrane is coated on both sides. The epiplasm lies in intimate contact with the cytoplasmic surface of this membrane, and there is a corresponding deposit on the other surface. This deposit is regularly striated.The epiplasmic layer and the alveoli are interrupted at sites of cytotic activity,e.g., the attachment sites of trichocysts, the cytoproct, and the parasomal sacs. The striated deposit ends where the epiplasm ends, indicating a direct relationship between these two epimembranous layers.There is a deposit along the sides of the first part of the tip of the trichocysts, and in this region the trichocyst membrane is free of intramembranous particles.The membrane of the parasomal sacs has a coat on both surfaces. That on the extraplasmic surface is similar to the surface coat of the plasma membrane. The origin of the cytoplasmic coat is unknown. The cytotic activity of these sacs is indicated by their highly irregular profiles.     

The early development of the tail and the transformation of the shape of the nucleus of the spermatid of the domestic fowl,Gallus gallus

Summary The differentiation of the spermatid, especially in reference to the formation of the flagellum, and transformation of the shape of the nucleus was investigated in the domestic fowl.In the early stage of the spermatid, a prominent Golgi apparatus appears around the centrioles. The Golgi vesicles then surround the axial-filament complex which develops from the distal centriole. These vesicles fuse to form continuous membrane at the earliest stage of flagellar formation, and in the succeeding stage Golgi lamellae are attached to the plasma membrane of the developing flagellum. From these observations, it is assumed that Golgi apparatus may be a source of the membrane system of the flagellum.The microtubules distributed around the nucleus form the circular manchette. The anterior region of the nucleus with the manchette is cylindrical in shape and the posterior region without it remains irregular in shape. When the circular manchette has been completed, the whole nucleus acquires a slender cylindrical shape. The circular manchette then changes into the longitudinal manchette. The nuclei of spermatids without a longitudinal manchette are abnormal in shape. In view of these observations it is assumed that the nuclear shaping of the spermatid may be accomplished by circular manchette and the maintenance of shape of the elongated nucleus by longitudinal manchette.The authors wish to thank Mr. Takayuki Mori for his helpful suggestions and technical advices     

Observations on the permeability of the choriocapillaris of the eye

Summary The choriocapillaris is a fenestrated capillary bed located posterior to the retinal pigment epithelium. It serves as the main source of supply to the photoreceptors, retinal pigment epithelium, and other cells of the outer retina. The permeability of these capillaries to intravenously injected ferritin (MW — approx. 480,000; mol. diam. 11 nm) was examined in the mouse, rabbit, and guinea pig, each of which is characterized by a different type of retinal vascularization. In all three species, the bulk of the ferritin remained in the capillary lumina, where it appeared to be blocked at the level of the diaphragmed fenestrae. Some ferritin was present in endothelial cell vacuoles. The results confirm previous work on the rat choriocapillaris and indicate that the barrier function of the choriocapillary endothelium is present even among species in which the retinal circulation differs significantly.Supported by NIH grant EY03418     

Separation of the pineal vesicle from the wall of the third ventricle during the post-hatching development of the chicken

Summary According to light- and electron-microscopic observations the pineal organ of the 3-day-old chicken consists of a prominent end vesicle and a tapering parenchymal stalk. During this stage the pineal lumen is in open communication with the third ventricle. However, in the 40-day-old chicken, which still possesses a well-developed end vesicle, the proximal portion of the pineal stalk displays regressive changes leading to local fragmentation. At this stage the pineal stalk is reduced, and the pineal lumen is missing. In 1-year-old chickens the parenchyma of the proximal portion of the stalk is further diminished, and in 3-year-old domestic fowl is completely displaced by bundles of collagenous fibers, only some nerve fibers being present. This post-hatching pineal development may reflect the sequence of changes leading from pineal sense organs to pineal glands.This work was supported by a grant-in-aid for Scientific Research from the Ministry of Education, Science and Culture of Japan