MiR-30c-1-3p targets matrix metalloproteinase 9 involved in the rupture of abdominal aortic aneurysms

Journal of Molecular Medicine - Abdominal aortic aneurysm (AAA) can be fatal if ruptured, but there is no predictive biomarker. Our aim was to evaluate the prognostic potential of microRNAs...     

口腔修复用钛锆铌锡合金研制及铸造性能研究

目的：研制口腔修复用钛锆铌锡（Ti-12.5Zr-3Nb-2.5Sn）合金,并评价合金铸造加工性能。方法：制备Ti-Zr-Nb-Sn合金,采用国产LZ5型离心铸钛机铸造试样,测试合金的铸流率,铸造反应层和线收缩率。结果：400℃时铸造,合金铸流率为100%,铸造线收缩率,表面反应层满足修复支架的铸造要求。结论：Ti-12.5Zr-3Nb-2.5Sn合金具有良好铸造加工性能,可满足口腔修复材料的临床应用要求。     

A case report of left ventricular non-compaction in progression to dilated cardiomyopathy: Diagnostic utilization of multiple imaging modalities

Left ventricular non-compaction, which is characterized by left ventricular hypertrabeculation, is a rare congenital cardiomyopathy. The changing and progressing morphology, with different clinical manifestations, made the diagnosis difficult. Here is a case report of a middle-age woman, who had exercise intolerance for many years. Traditional echocardiography showed findings of dilated cardiomyopathy but obscure trabeculations, which was clearly seen by three-dimensional echocardiography. Subsequent cardiac magnetic resonance imaging well demonstrated the myocardial non-compaction and delayed enhancement. LVNC could be found early in a child, and also in a mid-age adult. When a patient with LVNC had progressing heart failure, the hypertrabeculation may become less prominent. The utilization of three-dimensional echocardiography and MRI would help identify such landmark findings.     

Sequential endovascular coil embolization for a traumatic cervical vertebral AV fistula.

An arteriovenous (AV) fistula involving the cervical vertebral artery is rare. Iatrogenic injury from percutaneous puncture and penetrating wounds are the most common causes. Symptoms include tinnitus and the presence of a pulsatile mass with a thrill. Conservative treatment with coil embolization and preservation of the vertebral artery is an alternative to surgical intervention. We report a patient who developed an AV fistula involving the vertebral artery and internal jugular vein following surgical repair of a stab wound to the neck. The sequential endovascular coil embolism was performed with subsequent successful occlusion of fistula. No neurological deficit developed during or after intervention. This approach appears to be a safe method in the treatment of vertebral AV fistula.     

Serum TRSUT Titer ≥1:16 Is a Predictor for Neurosyphilis Among HIV-Infected Patients With Concurrent Syphilis and No Neurological Symptoms

Investigating the predictors for lumbar puncture to diagnose the asymptomatic neurosyphilis among HIV and syphilis co-infected patients in Shanghai, China.Respectively, screening the medical records from August 1, 2009 to June 30, 2015. Those HIV-infected patients with concurrent syphilis who had received lumbar puncture were selected and their clinical and demographic data were recorded. Participants comprised symptomatic and asymptomatic patients. The latter ones could be further divided into 3 groups: late syphilis, early syphilis with anti-syphilis treatment failure, and early syphilis with serum toludine red unheated serum test (TRUST) ≥1:32. Both syphilis stage and anti-syphilis treatment effect were defined by common criteria, and syphilis of unknown duration was considered as late syphilis. Asymptomatic neurosyphilis was defined as neurosyphilis without neurological symptoms such as headache, cognitive dysfunction, motor deficits, auditory or ophthalmic abnormalities, and stroke. Neurosyphilis was defined as reactive cerebrospinal fluid (CSF) TRUST and/or CSF white blood cell >20 cells/μL without other reasons. Mann–Whitney test and Fisher''s exact test were used for analyzing the difference between neurosyphilis and non-neurosyphilis group. Logistic regression test was performed to analyze the risk factors for neurosyphilis.In total, 170 participants were collected, and the rate of neurosyphilis was 32.35%. Among all the 105 participants without neurological symptoms, 80 patients were with late syphilis and 25 were with early syphilis. Among the early syphilis patients, 23 had a TRUST ≥1:32 and the other 2 experienced an anti-syphilis treatment failure. The differences of clinical and demographic variables between neurosyphilis and non-neurosyphilis group were not statistically significant except the serum TRUST titer (P < 0.01). From HIV/syphilis co-infected patients with or without neurological symptom, those who had neurological symptoms, CD4 <350 per μL and serological TRUST titer ≥1:16 were 4.9-fold (95% confidence interval [CI]: 2.37–10.31), 4.3-fold (95% CI: 1.17–15.78), and 4.1-fold (95% CI: 1.58–10.76), respectively, more likely to be diagnosed with neurosyphilis. Asymptomatic patients whose serum TRUST titer ≥1:16 were 8.48-fold (95% CI: 1.08–66.63) more likely to have asymptomatic neurosyphilis.Among asymptomatic HIV-infected patients with late syphilis or early syphilis experienced an anti-syphilis treatment failure, those who have a serum TRUST titer ≥1:16 are suggested to perform lumbar puncture in order to avoid delayed diagnosis and the occurrence of severe sequelae of syphilis.     

Harzianumnones A and B: two hydroxyanthraquinones from the coral-derived fungus Trichoderma harzianum

Two new hydroxyanthraquinones, harzianumnones A (1) and B (2), together with seven known analogs (3–9), were isolated from the soft coral-derived fungus Trichoderma harzianum (XS-20090075). Their chemical structures were elucidated by extensive spectroscopic investigation. The absolute configurations of 1 and 2 were determined by ECD calculation and single-crystal X-ray diffraction. Compounds 1 and 2 were identified as a pair of epimers, which are the first example of hydroanthraquinones from T. harzianum. Compounds 7 and 8 exhibited cytotoxicity against hepatoma cell line HepG2 with IC₅₀ values of 2.10 and 9.39 μM, respectively. Compound 7 was still found to show cytotoxicity against cervical cancer cell line HeLa with an IC₅₀ value of 8.59 μM.

Two new hydroxyanthraquinones were isolated from the soft coral-derived fungus Trichoderma harzianum, which are the first examples of hydroanthraquinones from T. harzianum.     

Interleukin-10-1082G/A polymorphism and acute liver graft rejection: a meta-analysis

AIM: To investigate the association between interleukin (IL)-10-1082 (G/A) promoter polymorphism and acute rejection (AR) in liver transplant (LT) recipients.METHODS: Two investigators independently searched the Medline, Embase, China National Knowledge Infrastructure, and Chinese Biomedicine Databases. Summary odds ratios (ORs) and 95% CIs for IL-10-1082 G/A polymorphism and AR were calculated in a fixed- and a random-effects model as appropriate.RESULTS: This meta-analysis included seven case-control studies, which comprised 652 cases of LT recipients in which 241 cases developed AR and 411 cases did not develop AR. Overall, the variant A allele was not associated with AR risk when compared with the wild-type G allele (OR = 0.94, 95% CI: 0.64-1.39). Moreover, similar results were observed when the AA genotype was compared with the AG/GG genotype (OR = 1.05, 95% CI: 0.55-2.02). When stratifying for ethnicity, no significant association was observed among either Caucasians or Asians. Because only one study was performed in Asian patients, the result of subgroup analysis by ethnicity would not be reliable for Asians. Limiting the analysis to the studies with controls in the Hardy-Weinberg equilibrium, the results were persistent and robust. No publication bias was found in the present study.CONCLUSION: This meta-analysis suggests that IL-10-1082 G/A polymorphism may be not associated with AR risk in LT recipients among Caucasians.     

东亚人群Klotho G-395A基因多态性与冠心病的Meta分析

目的 应用Meta分析探讨东亚人群Klotho G-395A基因多态性与冠心病易感性的关系。方法 分别检索中英文数据,获取2013年12月之前发表的有关Klotho G-395A基因多态性与冠心病易感性的病例对照研究,应用Meta分析方法对纳入的研究结果进行定量合并,采用Stata12.0软件进行统计分析,同时进行异质性检验及敏感性分析。结果 共纳入文献6篇,累计病例组1560例,对照组1459例。以显性模型比较做Meta分析,异质性检验显示无统计学意义（P0.2,I²30.8%）,以固定效应模型合并,表明Klotho G-395A基因多态性与冠心病易感性的关系有统计学意义（OR1.24,95%CI：1.06～1.45,P0.009）。按照病例组是否完全行冠状动脉造影做亚组分析,显示两组内部均无明显异质性,均以固定效应模型合并,冠状动脉造影组显示GA/AA基因型个体患冠心病的风险高于GG基因型个体（OR1.38,95%CI：1.12～1.70,P0.003）。非完全冠状动脉造影组则显示GA/AA基因型个体与GG基因型个体之间患冠心病的风险无统计学差异（OR1.07,95%CI：0.84～1.37,P0.587）。分别采取随机效应模型或去除权重最大的研究或去除等位基因差异最大的研究行敏感性分析,所得OR值与总体模型类似,有统计学意义。Begg’s检验提示无明显发表偏倚。结论 Klotho G-395A基因多态性可能与东亚人群冠心病易感性有关。