两种微泡造影剂评价输卵管通畅性的临床效果观察

目的:研究全氟丙烷人血白蛋白微球注射液(简称全氟丙烷白蛋白)在评价输卵管通畅性的临床应用效果。方法:96例不孕症患者分为两组,分别应用全氟丙烷白蛋白和Sono Vue进行子宫输卵管造影,实时观察造影剂在子宫、输卵管及盆腔显影情况,判断输卵管通畅性并记录病人即时疼痛指数。其中全氟丙烷白蛋白组中19例进行X线子宫输卵管造影。结果:两组超声造影结果对比,显影清晰率、图像质量及即时疼痛指数无统计学差异,一致性较好。全氟丙烷白蛋白Hy Co Sy组19例同时进行X线子宫输卵管造影,两种方法一致程度较好。结论:应用全氟丙烷白蛋白进行子宫输卵管超声造影可作为临床评价输卵管通畅性的一种有效方法。     

超声弹性成像联合血清TSH、TK1、LMTK3对甲状腺乳头状癌的诊断价值及与肿瘤侵袭和增殖的关系研究

摘要 目的：探讨超声弹性成像（UE）联合血清促甲状腺激素（TSH）、胸苷激酶1（TK1）、Lemur-酪氨酸激酶3（LMTK3）对甲状腺乳头状癌（PTC）的诊断价值及与肿瘤侵袭和增殖的关系。方法：选取2020年1月-2022年12月海军军医大学第二附属医院收治的91例PTC患者作为观察组。另选取本院同期90例甲状腺良性肿瘤患者作为对照组。对所有患者开展UE检查,对比两组UE参数,同时检测并对比两组血清TSH、TK1、LMTK3水平以及组织标本中侵袭基因、增殖基因的信使核糖核酸（mRNA）表达水平。Pearson法分析UE参数、血清TSH、TK1、LMTK3与侵袭基因、增殖基因mRNA表达水平的相关性。受试者工作特征（ROC）曲线分析UE联合血清TSH、TK1、LMTK3对PTC的诊断效能。结果：观察组超声弹性评分（ES）、弹性系数（SR）均高于对照组（均P＜0.05）。观察组血清TSH、TK1、LMTK3水平均高于对照组（均P＜0.05）。观察组去整合素-金属蛋白酶9（ADAM-9）、BCL6共抑制因子样蛋白1（BCORL1）、Xklp2靶蛋白（TPX2）及Twist1 mRNA表达水平均高于对照组（均P＜0.05）。Pearson法分析结果显示,ES、SR及血清TSH、TK1、LMTK3均和ADAM9、BCORL1、TPX2、Twist1 mRNA表达水平均呈正相关（均P＜0.05）。ES、SR及血清TSH、TK1、LMTK3联合检测对PTC诊断的灵敏度为91.52%,特异度为87.34%,曲线下面积（AUC）为0.894,联合诊断的效能均优于上述五项指标单独检测。结论：UE联合血清TSH、TK1、LMTK3对PTC具有较高的诊断价值。上述指标异常升高与PTC肿瘤侵袭、增殖有关。     

静脉全麻联合超声引导下前锯肌平面+肋间神经阻滞应用于胸腔镜肺楔形切除术效果分析

摘要 目的：探讨静脉全麻联合超声引导下前锯肌平面+肋间神经阻滞应用于胸腔镜肺楔形切除术效果。方法：选择2021年10月至2022年12月来我院诊治的60例行胸腔镜肺楔形切除术患者,根据随机数字表法,将60例患者分为对照组（30例）与观察组（30例）,对照组30例患者行全麻联合胸椎旁阻滞+肋间神经阻滞的麻醉方法,观察组30例患者行全麻联合前锯肌＋肋间神经阻滞的麻醉方法。对比两组患者监测入室时（T0）、插管即刻（T1）、手术切皮时（T2）、拔管即刻（T3 ）时的平均动脉压及心率,对比两组患者术后2 h、4 h、12 h、24 h、48 h的静息、咳嗽状态下的疼痛评分,对比两组患者T0-T3点的应激反应指标,对比两组患者术中血管活性药的使用剂量,对比两组患者围术期的不良反应发生率。结果：与T0点相比,观察组在T1、T2、T3时的平均动脉压、心率均有明显增加（P<0.05）,而在T1点时,两组比较无差异（P>0.05）;T2、T3点时观察组的平均动脉压、心率明显较对照组低（P<0.05）。随着术后时间延长,两组静息、咳嗽状态下的疼痛评分明显降低（P<0.05）,而同时间点组间对比无统计学意义（P>0.05）。与T0点相比,观察组在T1、T2、T3时的肿瘤坏死因子、白介素6、白介素10水平均有明显增加（P<0.05）,而同时间点观察组与对照组对比无统计学意义（P>0.05）。观察组术中血管活性药的使用剂量明显较对照组低（P<0.05）。观察组的不良反应发生率16.77%低于对照组23.33%,但组间对比无统计学意义（P>0.05）。结论：行静脉全麻联合超声引导下前锯肌平面+肋间神经阻滞的胸腔镜肺楔形切除术者血流动力学更加稳定,术中所需血管活性药物用量明显降低。     

Telemetric observations on the spawning migration of the eel (Anguilla anguilla) west of the European continental shelf

Synopsis In the Northern Bay of Biscay and west of the Iberian continental shelf five silver eels (Anguilla anguilla L.) have been tagged with ultrasonic transmitters and tracked 13 to 23 hours over a depth of 200 to 2500 m. Their mean direction from release to the final position of tracking was 288° and significantly closer to the direction of the Sargasso Sea (250° west) than silver eels tracked earlier in the North Sea (341°), possibly 260°. Four of the transmitters were equipped with pressure sensing devices capable of indicating depths of at least 400 m. Three eels tracked at night, during full moon, preferred mean depths of 125, 166 or 215 m. One eel chose a depth of 100 m during moonlight and 50 m after the setting of the moon. Major depth changes, usually occurring one per hour, ranged up to a maximum of 200 m at a maximum vertical speed of 0.6 m sec^–1; this is close to the eels' normal horizontal speed. At dawn all but one dived to a depth of 400 m or more. The eels generally swam below the thermocline and often crossed it.     

Continuous production of glucose oxidase with Aspergillus sp. under ultrasound waves

Glucose oxidase (β-d-glucose: oxygen 1-oxidoreductase, EC 1.1.3.4, GOD) was continuously released from Aspergillus sp. under mild ultrasound waves (20 kHz, 15 W). However, GOD was not released from the cells under normal conditions because of their thick wall. GOD production under ultrasound waves was optimum at pH 7.5 and 30°C and decreased with increasing ultrasonic frequency. Ultrasonic cavitation accelerated GOD release from the cells. Microscopic observation and determination of ATP and nucleic acids in the broth revealed that the mycelia were not broken during a 5 h reaction under ultrasound waves (15 W). About 10% of GOD produced in cells was released during the reaction.     

Use of an ultrasound cell retention system for the size fractionation of somatic embryos of woody species

 The potential of ultrasonic standing waves for trapping suspended particles was utilized successfully for differential size fractionation of plant somatic embryos. In a flow-through resonator equipped with a 200-kHz piezoceramic transducer, embryos of different sizes corresponding to different developmental stages could be retained by varying the electric power input and flow speed. The system was initially established for carrot (Daucus carota) somatic embryos and subsequently adapted for the larger-sized embryos of the woody species cork oak (Quercus suber), grapevine (Vitis Berlandieri × rupestris) and cherry (Prunus incisa × serrula). Separation performance was confirmed by analysing the different fractions for the expression of homeobox genes which are differentially expressed during embryogenesis. No inhibitory effects of embryos on short- and long-term development could be observed. Received: 6 December 1999 / Revised: 8 March 2000 / Accepted: 13 March 2000     

优美红游动菌类胡萝卜素的提取条件研究

研究了优美红游动菌(Rhodoplanes elegans)的生长以及类胡萝卜素的产生,通过比较4种广泛采用的细胞破碎方法,对优美红游动菌(Rhodoplanes elegans)类胡萝卜素的提取条件进行了研究,结果表明:类胡萝卜素的产生与菌种的生长曲线相符合,菌种活化后培养45h,类胡萝卜素的含量趋于稳定;取此时培养液,采用超声波法破碎细胞(破碎功率640W,时间10min),类胡萝卜素提取效果最好,初提液类胡萝卜素的提取率约为7.62mg·(g干菌体)^-1;酸热法对色素的破坏严重。这为进一步开发利用天然色素资源提供了一定的理论依据。     

B 超引导下乳腺肿块粗针穿刺诊断的分析(附120 例报道）

目的：探讨B 超引导下粗针穿刺在乳腺肿块诊断中的应用意义。方法：使用B 超引导下粗针吸取穿刺对120 例乳腺肿块进 行穿刺活检,然后进行固定,脱水,染色,镜检,结合临床作出病理学诊断。结果：粗针穿刺诊断包括良性病变48 例,非典型性导管 上皮增生（ADH)32 例,导管内癌12 例,浸润性癌28 例。与后续手术标本病理诊断比较得出确诊率,其中良性病变的诊断率为 95.83%（46/48）,ADH 的确诊率为75%（24/32）,导管内癌的确诊率为58.33%（7/12）,浸润性癌诊断率为92.86%（26/28）,其中导管 内癌与浸润性导管癌和乳腺良性病变的确诊率有显著性差异,而ADH 与浸润性导管癌和乳腺良性病变间的确诊率有差异,但本 组数据没有统计学意义。结论：超声引导下粗针穿刺对乳腺浸润性癌和良性病变的诊断率较高,但对ADH和原位癌的确诊率较 低,有待进一步改进。     

B超引导下乳腺肿块粗针穿刺诊断的分析（附120例报道）

目的：探讨B超引导下粗针穿刺在乳腺肿块诊断中的应用意义。方法：使用B超引导下粗针吸取穿刺对120例乳腺肿块进行穿刺活检,然后进行固定,脱水,染色,镜检,结合临床作出病理学诊断。结果：粗针穿刺诊断包括良性病变48例,非典型性导管上皮增生（ADH）32例,导管内癌12例,浸润性癌28例。与后续手术标本病理诊断比较得出确诊率,其中良性病变的诊断率为95．83％（46／48）,ADH的确诊率为75％（24／32）,导管内癌的确诊率为58．33％（7／12）,浸润性癌诊断率为92．86％（26／28）,其中导管内癌与浸润性导管癌和乳腺良性病变的确诊率有显著性差异,而ADH与浸润性导管癌和乳腺良性病变间的确诊率有差异,但本组数据没有统计学意义。结论：超声引导下粗针穿刺对乳腺浸润性癌和良性病变的诊断率较高,但对ADH和原位癌的确诊率较低,有待进一步改进。