胃癌患者术前应用含ω-3不饱和脂肪酸的肠内营养制剂的临床效果观察

目的探讨术前应用含ω-3不饱和脂肪酸的肠内营养制剂对胃癌患者营养状况和炎症因子水平的影响,并对其进行安全性评价。方法前瞻性纳入2014年1~6月期间四川大学华西医院收治的60例胃癌患者,随机分为试验组(30例)和对照组(30例)。试验组术前以含ω-3不饱和脂肪酸的营养制剂(瑞能)作为肠内营养制剂,对照组进食等热卡等氮的均浆膳,术前均连续服用5 d,至术前1 d。检测患者入院时、术前1 d、术后3 d及术后5 d血清中的炎症因子指标和营养相关指标,检测患者入院时和术前1 d的肝肾功能指标以作为安全性评价指标;记录患者呕吐、腹泻等不良反应,以及术后感染相关并发症的发生情况。结果术后3 d试验组患者的白介素-6(IL-6)和α-1酸性糖蛋白(AAG)水平均低于对照组(P<0.05),术后5 d试验组的C反应蛋白(CRP)水平低于对照组(P<0.05),其余各时点2组患者的各指标比较差异均无统计学意义(P>0.05)。在肠内营养支持期间,试验组患者发生腹胀1例,腹泻1例,对照组患者未出现腹胀、腹泻等不适。2组患者的不良反应发生率比较差异无统计学意义(P>0.05)。术后试验组发生切口感染1例(3.3%);对照组发生切口感染3例(10.0%),腹腔感染1例(3.3%),尿路感染1例(3.3%),肺部感染2例(6.7%),共计7例(23.3%)。2组患者的腹腔感染、切口感染、尿路感染及肺部感染发生率比较差异均无统计学意义(P>0.05),但试验组的总并发症发生率低于对照组(P=0.026)。结论术前应用含ω-3不饱和脂肪酸的营养制剂降低了胃癌患者术后的感染并发症发生率,且安全性较高。     

大病保险对我国中老年人家庭灾难性卫生支出影响实证分析

目的:考察大病保险对我国中老年人家庭灾难性卫生支出的影响,为完善我国大病保险制度提供建议。方法:以中国健康与养老追踪调查数据库(2011年与2015年)中45岁及以上的城乡中老年人家庭作为研究对象,利用描述性统计法和两部模型法分析大病保险对我国中老年人家庭灾难性卫生支出的影响。结果:目前的大病保险政策从总体上降低了中老年人家庭灾难性卫生支出的发生率,但没有显著降低其发生强度。结论:目前的大病保险并未达到其预期的效果,只是解决了"面"的问题,从总体上降低了灾难性卫生支出发生的可能性,但并没有解决"点"的问题,没有有效降低其大额的医疗卫生支出进而减少其医疗经济负担。建议各地各级政府相关部门应进一步完善大病保险制度,从而真正有效减轻居民重大疾病医疗经济负担。     

胞宫胞脉胞络理论与子宫内膜容受性关系探析

胞宫胞脉胞络理论是中医基于脏腑理论对女子生殖功能的基本认识.子宫体、宫颈、卵巢、输卵管、盆壁及其相关的血管、神经、韧带及受体当属胞宫、胞脉、胞络功能范畴.胞脉和胞络属于胞官的一部分.胞脉、胞络将脏腑化生之气血全面布散于胞官,心、肾通过胞脉、胞络与胞官相联系."精满" "血足"是良好子宫内膜环境的体现.肾气亏损,胞脉失疏,冲任不充,胞官瘀滞,藏泻失序,表现为子宫内膜较薄及血供不足,不利于孕卵的着床.治疗子宫内膜容受性低下应予补肾气,通胞脉,自拟二补助育汤,可以改善子宫内膜血液循环,增加子宫内膜厚度,提高辅助妊娠成功率.     

早期乳腺癌后续强化辅助内分泌治疗(MA-17研究结果解读)

1乳腺癌内分泌治疗:他莫昔芬的益处和局限性他莫昔芬(TAM)是最常用的乳腺癌内分泌治疗的药物,关于TAM在早期乳癌术后预防复发转移的辅助治疗阶段中应用,最为权威的结论来自发表在Lancet上、对5 5个临床试验共计37 000例患者的综合回顾报告,目前TAM在乳癌辅助治疗中应用的基本共识有:①辅助内分泌治疗的决定因素为激素受体(ER/PR)状况,ER阳性者效果最好,部分ER、阴性PR阳性的患者也可以使用TAM,但ER阴性患者辅助治疗用TAM不能改善生存;②目前认为TAM合适的服药时间为5年,可以显著降低复发风险12%,提高生存率9%。至于再延长用药…     

皮肤再生医疗技术治疗糖尿病足溃疡疗效分析

目的:分析、总结、探讨皮肤再生医疗技术在临床上治疗糖尿病足溃疡的可行性与有效性。方法:对32例糖尿病足溃疡住院病人采用皮肤再生医疗技术为主、必要时配合植皮的治疗方法进行局部创面修复。结果:32例糖尿病足溃疡应用皮肤再生医疗技术获得修复9例(占28.1％),皮肤再生医疗技术 皮片移植12例(占37．5％),皮肤再生医疗技术 皮瓣修复5例(占15．6％),进行截肢6例(占18．8％)。结论:及时就诊、及时采用皮肤再生医疗技术为主的治疗方法能有效修复溃疡创面、降低糖尿病足截肢率。     

Histomorphologic Characterization of Noncarious and Caries-Affected Dentin/Adhesive Interfaces

PURPOSE: The purpose of this study was to compare the dentin/adhesive interfacial characteristics when bonding to noncarious as well as caries-affected dentin. MATERIALS AND METHODS: Seven extracted, unerupted, third molars were sectioned into halves. Artificial caries was created on one-half of each tooth, leaving the other half as a control. Dentin surfaces were treated with UNO adhesive according to the manufacturer's instructions for the wet-bonding technique and under environmental conditions present in the oral cavity. Dentin/adhesive interface sections of each half-tooth were stained with Goldner's trichrome, a classic bone stain, and examined using light microscopy. The width of exposed collagen was measured directly from photomicrographs, and adhesive penetration was analyzed qualitatively. RESULTS: The degree and extent to which the adhesive encapsulated the demineralized dentin matrix were reflected in the color difference in the stained sections with the noncarious dentin sections showing a degree of collagen encapsulation superior to that of the caries-affected dentin sections. The overall mean widths of exposed collagen were significantly (p < or = .05) greater at the caries-affected dentin/adhesive interface, 8.6 (1.7) microm, as compared with those at the noncarious dentin/adhesive interface, 6.0 (1.5) microm. CONCLUSIONS: The morphologic characteristics of the caries-affected dentin/interface suggest an increase in the exposed collagen zone and a decrease in the quality of the adhesive infiltration when compared with noncarious dentin. The evidence suggests that dentin substrate characteristics have a significant effect on the dentin/adhesive interface structure.     

谷氨酰胺转移酶对大豆分离蛋白成膜性能的影响

研究了谷氨酰胺转移酶（TGase）对大豆蛋白膜特性的影响。研究表明：在成膜溶液中加入TGase（4U／g）可以使膜的抗拉强度增加16．79，6，表面疏水性增加39．2％，同时也明显降低了膜的断裂伸长率、水分含量、总可溶性物质量及透光率，但是对水蒸气转移速率几无影响。扫描电镜（SEM）显示，酶法交联膜的表面比对照膜略为粗糙，断面却更为均匀致密。SDS-PAGE分析表明，TGase催化SPI产生了共价交联。     

人间充质干细胞免疫原性研究

目的探讨人间充质干细胞(hMSCs)特性及免疫原性,为进一步研究hMSCs移植特性提供实验依据。方法免疫组化方法鉴定hMSCs表面HLA-ABC、HLA-DR、CD80、CD86分子;流式细胞术检测其含量;RT-PCR检测HLA-ABC、HLA-DRmRNA基因片断;外周血淋巴细胞杀伤试验及 CCK-8比色法规察淋巴细胞增殖反应;将表达绿色荧光蛋白(GFP)的DNA复合物导入hMSCs进行大鼠脑内移植,观察hMSCs在脑内的存活情况。结果 hMSCs表面少量表达HLA-ABC分子,不表达 HLA-DR、CD80、CD86分子;有少量HLA-ABC mRNA基因片断存在,未发现HLA-DR mRNA基因片断;外周血淋巴细胞杀伤试验没有发现淋巴细胞增殖反应;大鼠脑内移植hMSCs一个月后仍可见有细胞存活。结论 hMSCs具有较弱的免疫原性。     

腹部恶性纤维组织细胞瘤28例临床分析

目的探讨腹部恶性纤维组织细胞瘤的诊治方法。方法回顾性分析28例腹部恶性纤维组织细胞瘤的临床表现、影像学特征、病理学特点、治疗方法、疗效和预后。结果28例中17例来源于腹膜后，6例来源于腹腔脏器，3例来源于肠系膜，2例来源于腹壁，主要临床表现为明显消瘦，体重减轻、腹痛和腹部肿块。B超和CT扫描提示腹部占位性病变。肿瘤≥2个24例，单发4例。根治性切除17例，部分切除11例，术后联合化疗16例，联合放疗14例。术后1、3、5年生存率分别为76．9％，26．9％和3．9％。结论腹部恶性纤维组织细胞瘤主要来源于腹膜后，常多发，手术切除是首选的治疗方法，术后联合放化疗，可能改善患者预后。     

Ligustrazine inhibits high voltage-gated Ca~(2+) and TTX-resistant Na~+ channels of primary sensory neuron and thermal nociception in the rat:a study on peripheral mechanism

Objective Ligustrazine, also named as tetramethylpyrazine, is a compound purified from Ligusticum chuanxiong hort and has ever been testified to be a calcium antagonist. The present investigation was to determine the antinoci-ceptive effect of ligustrazine and, if any, the peripheral ionic mechanism involved. Methods Paw withdrawal Latency ( PWL) to noxious heating was measured in vivo and whole-cell patch recording was performed on small dorsal root ganglion (DRG) neurons. Results Intraplantar injection of ligustrazine (0.5 mg in 25μl) significantly prolonged the withdrawal latency of ipsilateral hindpaw to noxious heating in the rat. Ligustrazine not only reversibly inhibited high-voltage gated calcium current of dorsal root ganglion (DRG) neuron in dose-dependent manner with IC50 of 1.89 mmol/L, but also decreased tetrodotoxin (TTX) -resistant sodium current in relatively selective and dose-dependent manner with IC50 of 2.49 mmol/L. Conclusion The results suggested that ligustrazine could elevate the threshold of thermal nociception through inhibiting the high-voltage gated calcium current and TTX-resistant sodium current of DRG neuron in the rat.