PSA密度对前列腺癌病理结果的预测价值

目的:评估前列腺特异抗原密度(prostate specific antigen density,PASD)对前列腺癌根治术后不良病理结果的预测价值.方法:回顾性分析50例病理确诊为前列腺癌患者的临床资料,收集患者术前总前列腺特异抗原(total prostate specific antigen,tPSA)、PSAD及穿刺活检Gleason评分结果,比较在手术切缘阳性(positive surgical margins,PSM)、前列腺包膜外侵犯(extracapsular prostatic extension,EPE)、精囊入侵(seminal vesicle invasion,SVI)患者中以上各项指标的差异,对有统计学差异的因素行多元Logistic回归分析,筛选影响浸润的最主要因素,同时运用工作特征曲线(ROC曲线)比较各指标的预测价值.结果:PSM,EPE和SVI患者之间PSAD存在统计学差异,PSAD曲线下面积高于PSA与Gleason评分.多元Logistic回归分析结果表明,PSAD和Gleason评分对PSM和EPE有着统计学意义的预测价值,且PSAD和PSA与SVI有关.结论:PSAD可作为接受前列腺癌根治术的患者术后不良的预测指标.     

非甾体抗炎药在骨科手术超前镇痛中的临床应用研究

目的:研究非甾体抗炎药的超前镇痛在骨科手术中的效果。方法:按照入选标准和排除标准选取2014年1月至2014年6月收治入院行骨科手术的各类骨折患者。记录每名患者人口统计学资料,骨折类型和部位,手术和麻醉方式,镇痛治疗方案,术前和术后疼痛评分,心理评分,用药期间不良反应,患者满意度评分。结果:本研究共纳入241名行骨折手术患者,分为超前镇痛组(n=115)和对照组(n=126),超前镇痛组术前使用非甾体抗炎药(主要为帕瑞昔布、塞来昔布)进行镇痛,对照组术前不使用非甾体抗炎药镇痛,两组术前疼痛评分无显著性差异。超前镇痛组和对照组在术后6 h、12 h、48 h、72 h视觉疼痛评分(visual analogue scale,VAS)、不良反应发生率和满意度评分差别有统计学意义(P0.05)。超前镇痛组心理评分低于对照组,不良反应发生率少于对照组,满意度较高。结论:非甾体抗炎药超前镇痛运用于骨科手术中,能够有效缓解手术切口疼痛,减轻炎症反应,减少不良反应的发生,患者满意度高。     

基于三类特征融合的O-糖基化位点预测

糖基化是蛋白质翻译后的主要修饰,O-糖基化的固定模式未知,高精度识别O-糖基化位点是机器学习面临的挑战性问题.以迄今最大的人O-糖基化位点Steentoft数据集为基础,本文首次提出了基于位置的卡方差表特征χ~2-pos,融合伪氨基酸序列进化信息Pse PSSM以及无方向的k间隔氨基酸对组分Undirected-CKSAAP表征序列,构建5个正负样本均衡的支持向量机分类器,经加权投票,独立测试准确率、Matthew相关系数及ROC曲线下面积,分别达到了89.62%、0.79、0.96,明显优于文献报道结果.χ~2-pos、Pse PSSM与Undirected-CKSAAP三种特征的融合在蛋白质糖基化、磷酸化等位点预测中有广泛应用前景.     

Patients with chronic,but not episodic,migraine display altered activity of their neck extensor muscles

The current study aimed to investigate differences in activity of neck flexor and extensor muscles in women with migraine considering the chronicity of their condition. Thirty-one subjects with episodic migraine, 21 with chronic migraine and 31 healthy controls participated. Surface electromyography signals were recorded bilaterally from the sternocleidomastoid, anterior scalene, splenius capitis and upper trapezius muscles as subjects performed 5 stages of cranio-cervical flexion (CCF), representing a progressive increase in range of CCF motion. Comparison of normalized root-mean-square among groups was conducted with 3 × 5 ANCOVA with task level as the within-subject variable, group as the between-subject variable, and the presence of neck pain and disability as co-variates. The group with chronic migraine exhibited increased activity of their extensor muscles compared to the control and episodic migraine groups (splenius capitis: F = 3.149, P = 0.045; upper trapezius: F = 3.369, P = 0.041). No significant between-group differences were found for the superficial neck flexors (sternocleidomastoid: F = 1.161, P = 0.320; anterior scalene: F = 0.135, P = 0.874). In conclusion, women with chronic migraine exhibit increased activity of their superficial neck extensor muscles when acting as antagonists during low-load isometric CCF contractions in comparison to non-headache subjects.     

急性冠脉综合征患者NLR、MPV与Gensini评分的相关性分析

目的:探讨急性冠脉综合征(Acute Coronary Syndrome,ACS)患者的中性粒细胞/淋巴细胞(Neutrophils/lymphocyte,NLR)、平均血小板体积(Mean platelet volume,MPV)与Gensini评分的相关性。方法:将156例ACS患者依据冠状动脉造影结果分为单支病变组、双支病变组及三支病变组,比较各组间NLR、MPV、Gensini评分及一般临床资料,并分析不同指标之间的相关性。结果:与双支病变组、单支病变组相比较,三支病变组吸烟、糖尿病、低密度脂蛋白胆固醇(low density lipoprotein cholesterol,LDL-C)、高密度脂蛋白胆固醇(high density lipoprotein cholesterol,HDL-C)、尿酸(uric acid,UA)、NLR、MPV、Gensini评分均显著升高(P0.05);与单支病变组相比较,双支病变组吸烟、糖尿病、LDL-C、HDL-C、UA、NLR、MPV、Gensini评分均显著升高(P0.05);三组间年龄、性别、高血压、总胆固醇(total cholesterol,TC)、甘油三酯(triglyceride,TG)、肌酐(creatinine,Cr)比较差异均无统计学意义(P0.05)。Pearson相关性分析表明:NLR、MPV与Gensini评分均呈正相关(r=0.482、0.702, P0.05)。结论:ACS患者MPV和NLR与冠状动脉病变程度呈显著正相关,可有效评估冠状动脉狭窄程度。     

Proxomed Tergumed用于椎间孔镜术后早期康复的临床效果分析

目的:探讨Proxomed Tergumed系统用于腰椎间盘突出症椎间孔镜术后早期康复的治疗效果。方法:按照纳入和排除标准,选择2016年6月至2017年6月在我科明确诊断为腰椎间盘突出症并进行腰椎间孔镜手术的63例患者进行回顾性分析。按照是否进行系统的Proxomed Tergumed脊柱功能训练,将其分为功能训练组实验组(28例)与对照组(35例)。比较两组患者在术前、术后1周、术后3月及术后6月的疼痛(VAS)、功能评分(ODI)、相关肌肉力量及术后并发症的发生情况。结果:两组患者术后的VAS评分及ODI评分均较术前明显降低(P0.05)。术后1周时,两组VAS评分及ODI评分比较差异无统计学意义(P0.05)。术后3月及6月,实验组VAS评分和ODI评分均显著低于对照组(P0.05)。术后6个月,实验组肌力恢复显著优于对照组(P0.05)。术后6月,实验组各肌肉群力量与术前相比均无显著差异(P0.05),而对照组肌肉群力量仍较术前显著降低(P0.05)。结论:Proxomed Tergumed系统在腰椎间盘突出症椎间孔镜术后的康复中可以有效的降低患者的术后疼痛,改善患者的腰椎功能,相对于传统的术后康复训练而言有其明显的优势,且并无显著的安全性差异。     

老年冠心病患者血清Lp-PLA2、hs-CRP、IL-27及MMP-9水平与Gensini积分的相关性研究*

目的:探讨老年冠心病患者血清脂蛋白相关磷脂酶A2(Lp-PLA2)、高敏C反应蛋白(hs-CRP)、白细胞介素-27(IL-27)及基质金属蛋白酶-9(MMP-9)水平与Gensini积分的相关性。方法:选取2015年10月至2018年2月我院收治的冠心病患者142例为研究对象,将所有患者按照不同的冠心病类型分为不稳定型心绞痛(UAP)组54例、稳定型心绞痛(SAP)组40例和急性心肌梗死(AMI)组48例。同时根据患者Gensini积分将其分为轻度47例、中度51例和重度44例。比较不同冠心病类型、不同严重程度的Lp-PLA2、hs-CRP、IL-27、MMP-9水平及Gensini积分,并分析冠心病患者上述指标水平与Gensini积分的相关性。结果:AMI组患者Lp-PLA2、hs-CRP、IL-27、MMP-9水平及Gensini积分均高于UAP组和SAP组,且UAP组高于SAP组(P0.05)。重度患者Lp-PLA2、hs-CRP、IL-27、MMP-9水平及Gensini积分均高于中度和轻度患者,且中度患者高于轻度患者(P0.05)。经Spearman相关性分析结果显示,冠心病患者Lp-PLA2、hs-CRP、IL-27、MMP-9水平与Gensini积分均呈正相关(P0.05)。结论:老年冠心病患者Lp-PLA2、hs-CRP、IL-27及MMP-9水平与患者冠状动脉病变Gensini积分均呈正相关。临床根据Lp-PLA2、hs-CRP、IL-27及MMP-9水平的变化,有助于评估老年冠心病患者的病情严重程度。     

肺脏超声对新生儿呼吸窘迫综合征的诊断价值及肺超声评分的评估价值分析

目的:探讨肺脏超声对新生儿呼吸窘迫综合征(NRDS)的诊断价值,并分析肺超声评分的临床应用价值。方法:本研究选择2017年5月至2018年5月于我院确诊的NRDS患儿45例作为观察组,选择同期于我院就诊的非肺病患儿45例作为对照组,所有患儿均行肺脏超声检查。分析NRDS患儿肺脏超声特征性征象,比较肺脏超声对两组患儿各种征象的检出率,分析肺脏超声对NRDS的诊断价值,比较两组肺超声评分。结果:NRDS患儿全部存在肺实质征象,超声下肺组织回声呈肝样伴支气管充气征,轻度的NRDS患儿于肺脏超声下表现为局灶性的肺实质,且支气管充气征不明显;重度的NRDS患儿于肺脏超声下表现为肺实质范围的进一步扩大,且支气管充气征随病情的加重而愈发明显。观察组肺实质、胸膜线异常、A线消失、弥漫性肺水肿、支气管充气征等征象的检出率显著高于对照组(P0.05),两组B线存在征象的检出率比较无统计学差异(P0.05)。肺实质、胸膜线异常和A线消失三种特征征象同时存在时对NRDS诊断的灵敏度和特异性均为100.00%,肺实质、胸膜线异常和支气管充气征三种特征征象同时存在时对NRDS诊断的灵敏度为80.00%,特异性为100.00%。观察组双肺、左肺、右肺、双侧肺、双肺底肺超声评分均高于对照组(P0.05)。结论:肺脏超声对NRDS的诊断价值较高,且肺超声评分可以评估NRDS患儿的病情严重程度,有助于指导患儿的治疗。     

血府逐瘀汤联合四联疗法治疗Hp阳性慢性萎缩性胃炎的临床观察

目的:探究血府逐瘀汤联合四联疗法治疗幽门螺旋杆菌(Hp)阳性慢性萎缩性胃炎的效果。方法:回顾性分析2014年5月-2017年12月在我院进行诊治的80例Hp阳性慢性萎缩性胃炎患者的临床资料,按照其入院顺序经随机数字表分为研究组和对照组,每组各40例患者。其中,对照组患者采用四联疗法,研究组患者在对照组基础上联合血府逐瘀汤进行治疗,对比两组患者的Hp转阴率、治疗前后胃黏膜病理积分的变化情况、临床症状积分的变化情况和不良反应发生率。结果:治疗后,研究组患者的Hp转阴率[85.0%(34/40)]显著高于对照组[62.5%(25/40)](P0.05)。两组上腹痛、纳差、上腹胀、反酸、嗳气等临床症状积分以及胃黏膜萎缩、肠化、不典型增生等病理积分均显著低于治疗前(P0.05),且研究组以上指标均明显低于对照组(P0.05)。研究组患者的不良反应发生率[5.0%(2/40)]与对照组[12.5%(5/40)]无显著性差异(P0.05)。结论:血府逐瘀汤联合四联疗法治疗Hp阳性慢性萎缩性胃炎的效果显著优于单用四联疗法,其可有效改善患者的病变程度和临床症状,且无明显不良反应产生。     

The Meat Standards Australia Index indicates beef carcass quality

A simple index that reflects the potential eating quality of beef carcasses is very important for producer feedback. The Meat Standards Australia (MSA) Index reflects variation in carcass quality due to factors that are influenced by producers (hot carcass weight, rib fat depth, hump height, marbling and ossification scores along with milk fed veal category, direct or saleyard consignment, hormonal growth promotant status and sex). In addition, processor impacts on meat quality are standardised so that the MSA Index could be compared across time, breed and geographical regions. Hence, the MSA Index was calculated using achilles hung carcasses, aged for 5 days postmortem. Muscle pH can be impacted by production, transport, lairage or processing factors, hence the MSA Index assumes a constant pH of 5.6 and loin temperature of 7^oC for all carcasses. To quantify the cut weight distribution of the 39 MSA cuts in the carcass, 40 Angus steers were sourced from the low (n=13), high (n=15) and myostatin (n=12) muscling selection lines. The left side of each carcass was processed down to the 39 trimmed MSA cuts. There was no difference in MSA cut distribution between the low and high muscling lines (P>0.05), although there were differences with nine cuts from the myostatin line (P<0.05). There was no difference in the MSA Index calculated using actual muscle percentages and using the average from the low and high muscling lines (R²=0.99). Different cooking methods impacted via a constant offset between eating quality and carcass input traits (R²=1). The MSA Index calculated for the four most commercially important cuts was highly related to the index calculated using all 39 MSA cuts (R²=0.98), whilst the accuracy was lower for an index calculated using the striploin (R²=0.82). Therefore, the MSA Index was calculated as the sum of the 39 eating quality scores predicted at 5 days ageing, based on their most common cooking method, weighted by the proportions of the individual cut relative to total weight of all cuts. The MSA Index provides producers with a tool to assess the impact of management and genetic changes on the predicted eating quality of the carcass. The MSA Index could also be utilised for benchmarking and to track eating quality trends at farm, supply chain, regional, state or national levels.