Femoropopliteal Arterial Dissections Following FLEX VP and Balloon Angioplasty Versus Balloon Angioplasty Alone: Intravascular Ultrasound Assessment and Correlation With Angiographic Findings

BackgroundThe Flex VP is a longitudinal micro-incision catheter approved for vessel prepping of femoropopliteal arteries and arteriovenous fistulas. In this study, we evaluated the presence of deep dissections (adventitia) using IVUS in patients undergoing Flex VP followed by angioplasty (PTA) versus PTA alone.Methods17 patients (20 limbs) with femoropopliteal artery (FP) disease were prospectively and consecutively included (10 limbs received PTA followed by 10 limbs that received FLEX VP microincision catheter treatment followed by adjunctive PTA). Dissections post PTA, FLEX VP and FLEX VP+ PTA were evaluated using intravascular ultrasound (iDissection classification) and angiographically (NHLBI classification) by core laboratory. The evaluated segment of the vessel was prespecified at 10 cm at the most severe lesion location. Statistical differences were analyzed between the 2 groups at each appropriate procedural point for dissections, minimal luminal diameter (MLD), minimal luminal area (MLA), and residual stenosis. Statistical significance was determined by a p-value <0.05.ResultsBaseline demographics and angiographic variables were similar between the PTA vs FLEX VP + PTA groups with the exception of more males (87.5 % vs 33.3 %, p = 0.0274) and longer treated length (median 300 mm vs 150 mm, p = 0.0240) in the FLEX VP + PTA group. Lesion length, chronic total occlusions, angiographic and IVUS evaluated segment length for dissections, calcium severity and final balloon pressures and inflation duration were all similar between the 2 groups. Angiographic dissections were similar between the 2 groups but the increase in severe dissections from index to post POBA on IVUS (involving the adventitia) were significantly more for PTA when compared to FLEX VP + PTA (0 to 12 and 0 to 1 respectively, p = 0.0353). Bailout stenting was statistically similar for PTA as compared to FLEX VP + PTA per core lab evaluation (50 % vs 20 %, p = 0.3498). Minimal luminal area (MLA) gain by IVUS was similar between the 2 groups following FLEX VP + PTA vs PTA (7.4 mm² vs 6.5 mm², p = 0.7250). No serious major adverse events occurred in either group.ConclusionVessel prepping with the FLEX VP + PTA vs PTA yielded lower rates of adventitial dissections as seen on IVUS. The long-term outcomes of these findings remain unclear.     

miRNA141表达的调控对人前列腺癌DU145细胞恶性生物行为的影响

目的：研究microRNA-141（miR-141）表达的调控对人前列腺癌细胞系DU145细胞增殖、周期、凋亡、侵袭和迁移等恶性生物学行为的影响及其作用机制。方法：利用脂质体Lipofectamine2000将miR-141 mimics（miR-141 up组）和miR-141 inhibi‐tiors（miR-141 down 组）分别转染至人前列腺癌DU145细胞中，同时设置未转染组（Control组）和miRNA无义序列转染组（NC组）。qPCR检测转染前后各组DU145细胞中miR-141表达变化，MTT方法检测各组DU145细胞的增殖活力和对顺铂（DDP）作用敏感性变化，流式细胞术检测各组DU145细胞周期和顺铂作用下凋亡率变化，Transwell方法检测各组细胞侵袭和迁移能力的变化，Western blotting检测各组细胞中VEGF、EGFR蛋白表达量变化。结果：与Control组和NC组相比，miR-141 down组DU145细胞中miRNA-141表达水平下降为（0.18±0.08），其细胞增殖活力显著下降而对DDP敏感性显著上升、细胞周期被阻滞于G0+G1期而细胞凋亡率显著上升至（46.67±5.86）%、细胞侵袭率和迁移率分别显著下降至（44.34±8.32）%和（57.73±6.19）%、VEGF和EGFR相对表达量分别下降至（0.47±0.06）和（0.36±0.06）（上述各指标分别P<0.05或P<0.01）。miR-141 up组DU145细胞中miR‐NA-141表达水平上升为（4.23±0.53），其细胞增殖活力显著上升而对DDP敏感性显著下降、细胞周期提前进入S和G2期而细胞凋亡率显著下降至（18.77±4.24）%、细胞侵袭率和迁移率分别显著上升至（89.94±6.34）%和（94.44±5.84）%、VEGF和EGFR相对表达量分别上升至（0.89±0.07）和（0.73±0.06）（上述各指标分别P<0.05或P<0.01）。结论：miR-141在前列腺癌DU145细胞中发挥促癌因子作用，其下调表达能够显著抑制DU145细胞增殖活力、周期、侵袭与迁移，而促进对DDP的敏感性和细胞凋亡，其机制可能与其抑制VEGF和EGFR蛋白表达有关。     

放疗联合安罗替尼对小细胞肺癌患者胱天蛋白酶3、多腺苷二磷酸核糖聚合酶表达的影响研究

目的探讨放疗联合安罗替尼对小细胞肺癌(SCLC)患者胱天蛋白酶3(caspase 3)、多腺苷二磷酸核糖聚合酶(PARP)表达的影响。方法将86例SCLC患者随机分为放疗组(n=42)和联合组(放疗联合安罗替尼,n=44),探索两组1年生存率、不良反应发生情况及对caspase 3、PARP表达的影响。结果治疗前两组患者血清caspase 3、PARP水平比较,差异均无统计学意义(P﹥0.05);治疗后联合组患者血清caspase 3水平明显高于放疗组,PARP水平明显低于放疗组,差异均有统计学意义(P﹤0.01)。两组患者白细胞减少、中性粒细胞减少发生率比较,差异均无统计学意义(P﹥0.05)。联合组患者1年生存率高于放疗组,差异有统计学意义(P﹤0.05)。结论放疗联合安罗替尼可以有效提高SCLC患者血清内caspase 3水平,降低PARP水平,延长患者的生存时间,值得临床进一步研究。     

痰瘀阻络方联合丁苯酞治疗脑梗死急性期疗效及对患者脑血流灌注及血清6-k-PGF1a、Hcy、sICAM-1水平影响

目的:研究痰瘀阻络方联合丁苯酞治疗脑梗死急性期患者对脑血流灌注及血清6-醛前列环素F1a(6-k-pGF1a)、同型半胱氨酸(HCY)、可溶性细胞间黏附分子(sICAM-1)水平影响。方法:选择脑梗死急性期患者92例,随机分为观察组和对照组各46例。入组患者均给予常规治疗,对照组同时口服丁苯酞,观察组在对照组基础上给予痰瘀阻络方,两组均治疗28 d。观察治疗后临床疗效,对比治疗前后脑血流动力指标(双侧脑动脉峰流速及平均流速)、血流灌注指数(PI)、脑血管储备能力(CVR),统计血清6-k-PGF1a、Hcy、sICAM-1水平,记录美国国立卫生研究院卒中量表(NIHSS)、改良Rankin量表、Barthel指数评分量表评分情况,统计药物不良反应发生情况。结果:观察组治疗后临床总有效率为89.13%,高于对照组71.74%(P<0.05)。观察组治疗后PI、CVR、双侧动脉各流速改善情况均优于对照组(P<0.05); 观察组治疗后血清6-k-pGF1a、HCY、sICAM-1水平改善情况均优于对照组(P<0.05); 观察组治疗后NIHSS量表、改良Rankin量表、Barthel指数评分改善情况均优于对照组(P<0.05); 两组患者治疗期间其他检查结果均正常,轻微不良反应发生率相当(P>0.05)。结论:痰瘀阻络方联合丁苯酞对脑梗死急性期治疗效果较好,其能明显改善患者脑血流灌注情况,同时对血清6-k-PGF1a、Hcy、sICAM-1指标具有较好改善作用,有助于患者神经功能的提高。     

糖类抗原125、糖类抗原15-3、糖类抗原19-9和人附睾蛋白4单独及联合检测对卵巢癌的诊断价值

目的研究糖类抗原125(CA125)、CA15-3、CA19-9和人附睾蛋白4(HE4)单独及联合检测对卵巢癌的诊断价值,探讨最优的联合诊断方案。方法选取90例卵巢癌患者、90例良性卵巢疾病患者及90同期健康体检者,分别作为肿瘤组、良性组和健康组。比较3组受试者血清CA125、CA15-3、CA19-9和HE4水平及阳性率,比较上述四种肿瘤标志物单独及联合检测对卵巢癌的诊断灵敏度、特异度及准确度。结果肿瘤组患者CA125、CA15-3、CA19-9和HE4水平及阳性率均高于良性组患者和健康组受试者,良性组患者血清CA125、CA15-3和CA19-9水平均高于健康组受试者,良性组患者血清CA125、CA15-3、CA19-9和HE4阳性率均高于健康组受试者,差异均有统计学意义(P﹤0.05)。CA125+CA15-3+HE4、CA125+CA15-3+CA19-9+HE4诊断卵巢癌灵敏度最高,均为91.11%。HE4单独诊断卵巢癌的特异度最高,为94.44%。CA125+CA15-3+HE4诊断卵巢癌的准确度最高,为85.93%。结论CA125+CA15-3+HE4三项联合检测可提高卵巢癌诊断效率,对临床诊断卵巢癌有参考价值。     

直丝弓矫治器和Begg矫治器治疗安氏Ⅱ类1分类错[牙合]畸形疗效比较

目的:对比不同矫治器对错[牙合]畸形患者面高度及前后牙咬合关系的影响。方法:选取于笔者医院接受矫治的83例错[牙合]畸形患者,根据患者矫治器类型分为直丝弓组和Begg组,分别为42例和41例。比较并分析两组患者治疗前后牙咬合关系、硬组织、磨牙及面高度的变化情况。结果:矫治后,两组患者OJ-PPV、OB-PP、LMA-MPV、LMA-MPV均降低,Begg矫治组OJ-PPV水平显著高于直丝弓矫治组,OB-PP、LMA-MPV、LMA-MPV水平显著低于直丝弓矫治组,差异均具有统计学意义(P<0.05);两组患者LAFH、LAFH/TAFH、PFH/TAFH水平均升高,其中Begg矫治组患者LAFH水平显著低于直丝弓矫治组,差异均具有统计学意义(P<0.05);两组患者LMA-MP、LMC-MP水平均升高,差异具有统计学意义(P<0.05);矫治前后,两组患者SNA、SNA、ANB水平均无统计学差异(P>0.05)。结论:两种矫治器对错[牙合]畸形患者硬组织变化均无明显影响,其中Begg矫治对患者前后牙咬合关系改善作用更强,直丝弓对患者面高度的改善能力更强。     

Contribution of momilactones A and B to diabetes inhibitory potential of rice bran: Evidence from in vitro assays

This study was the first to detect the presence of the two compounds momilactone A (MA) and momilactone B (MB) in rice bran using liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI-MS). By in vitro assays, both MA and MB exhibited potent inhibitory activities on pancreatic α-amylase and α-glucosidase which were significantly higher than γ-oryzanol, a well-known diabetes inhibitor. Remarkably, MA and MB indicated an effective inhibition on trypsin with the IC₅₀ values of 921.55 and 884.03 µg/mL, respectively. By high-performance liquid chromatography (HPLC), quantities of MA (6.65 µg/g dry weight) and MB (6.24 µg/g dry weight) in rice bran were determined. Findings of this study revealed the α-amylase, α-glucosidase and trypsin inhibitors MA and MB contributed an active role to the diabetes inhibitory potential of rice bran.     

联合门静脉/肠系膜上静脉切除重建的胰十二指肠切除术治疗胰腺癌的临床探讨

目的探讨联合门静脉/肠系膜上静脉切除重建的胰十二指肠切除术治疗胰腺癌患者的效果。方法选取2017年3月至2018年9月于本院接受治疗的胰腺癌患者102例并通过随机数字表法分成两组,每组51例。参考组患者采用常规手术切除,观察组患者采用联合门静脉/肠系膜上静脉切除重建的胰十二指肠切除术,比较两组临床指标、术后并发症以及术后生存情况。结果观察组患者术中出血量多于参考组,手术时间、术后住院时间均长于参考组(P<0.05);观察组术后并发症总发生率低于参考组(P<0.05)。术后6个月及术后1年,观察组生存率均高于参考组(P<0.05)。结论胰腺癌患者应用联合门静脉/肠系膜上静脉切除重建胰十二指肠切除术,能提高手术疗效和患者生存率。     

甲状腺素片联合左甲状腺素钠片治疗甲减的疗效观察

目的探究甲减患者采用甲状腺素片联合左甲状腺素钠片治疗的疗效。方法选取2017年5月至2019年5月于本院诊治的100例甲减患者,按随机数字表法分为两组,各50例。对照组采用左甲状腺素钠片治疗,观察组在对照组基础上联合甲状腺素片治疗,比较两组疗效及甲状腺功能。结果治疗后,观察组总有效率(86.00%)高于对照组(64.00%),差异有统计学意义(P<0.05);两组治疗后总甲状腺素(TT4)、游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)水平均高于治疗前,而促甲状腺激素(TSH)水平低于治疗前,且观察组TT4、FT3、FT4水平高于对照组,TSH水平低于对照组,差异有统计学意义(P<0.05)。结论甲减患者采用甲状腺素片联合左甲状腺素钠片治疗的效果较好,有利于改善患者的甲状腺功能。     

结肠CT仿真内窥镜充气方法及压力的研究

目的：探讨结肠CT仿真内窥镜较理想的充气方法和充气压力。材料和方法：8名志愿者中，男4名，女4名，最大年龄50岁，最小年龄40岁，平均44.4岁。用电脑遥控灌肠整复仪通过双腔气囊胶乳导尿管向志愿者结肠内注入气体。先行最大耐受气压CT扫描，扫描期间持续注入这个压力直到扫描结束，然后每降低7.5mmHg进行一次CT扫描，最低压力为30mmHg。结果：肛门插管用双腔气囊胶乳导尿管。CT扫描时，用持续性注入同一压力气体的方法。结肠扩张程度，在52.5mmHg，40mmHg，37.5mmHg，30mmHg 4个级别气压之间，无显著性差异。结肠充气CT扫描后，腹部不适消失时间，男女之间有显著性差异。结论：CT扫描时，持续性注入同一压力气体的方法，可以保持肠管扩张的稳定性，保证CTVE检查的顺利进行。肠管充气压力的控制，不应以患者的最大耐受为标准，应以较低的气压为妥，本研究为30mmHg。肛门插管用双腔气囊胶乳导尿管，其膨胀的气囊可以起到固定导尿管和减少导尿管与肛门间的漏气作用。CT充气扫描后，腹部不适消失时间，女性较男性为长。