Causal relationship between feelings and cognitive decline:An univariable and multivariable Mendelian randomization study

BACKGROUND While the impact of depression on cognition is well-documented,the relationship between feelings and cognition has received limited attention.AIM To explore the potential association between feelings and cognition with a twosample Mendelian randomization(MR)analysis.METHODS Our analysis utilized genome-wide association data on various feelings(fed-up feelings,n=453071;worrier/anxious feelings,n=450765;guilty feelings,n=45-0704;nervous feelings,n=450700;sensitivity/hurt feelings,n=449419;miserableness,n=454982;loneliness/isolation,n=455364;happiness,n=152348)in the European population and their impact on cognitive functions(intelligence,n=269867).Conducting a univariable MR(UVMR)analysis to assess the relationship between feelings and cognition.In this analysis,we applied the inverse variance weighting(IVW),weighted median,and MR Egger methods.Additionally,we performed sensitivity analysis(leave-one-out analysis),assessed heterogeneity(using MR-PRESSO and Cochran’s Q test),and conducted multiple validity test(employing MR-Egger regression).Subsequently,a multivariable MR(MVMR)analysis was employed to examine the impact of feelings on cognition.IVW served as the primary method in the multivariable analysis,complemented by median-based and MR-Egger methods.RESULTS In this study,UVMR indicated that sensitivity/hurt feelings may have a negative causal effect on cognition(OR=0.63,95%CI:0.43-0.92,P=0.017).After adjustment of other feelings using MVMR,a direct adverse causal effect on cognition was observed(OR_(MVMR)=0.39,95%CI:0.17-0.90,P_(MVMR)=0.027).While a potential increased risk of cognitive decline was observed for fed-up feelings in the UVMR analysis(ORUVMR=0.64,95%CI:0.42-0.97,PUVMR=0.037),this effect disappeared after adjusting for other feelings(OR_(MVMR)=1.42,95%CI:0.43-4.74,P_(MVMR)=0.569).These findings were generally consistent across MV-IVW,median-based,and MR-Egger analyses.MR-Egger regression revealed pleiotropy in the impact of worrier/anxious feelings on cognition,presenting a challenge in identifying the effect.Notably,this study did not demonstrate any significant impact of guilty feelings,nervous feelings,miserableness,or loneliness/isolation on cognition.Due to a limited number of instrumental variables for happiness,this study was unable to analyze the relationship between happiness and cognition.CONCLUSION This MR study finds that sensitivity/hurt feelings are associated with cognitive decline,while the link between worrier/anxious feelings and cognition remains inconclusive.Insufficient evidence supports direct associations between happiness,guilty feelings,nervous feelings,miserableness,loneliness/isolation,and cognition.

The AGH score is a predictor of disease-free survival and targeted therapy efficacy after liver transplantation in patients with hepatocellular carcinoma

Background:Liver transplantation(LT)is the“cure”therapy for patients with hepatocellular carcinoma(HCC).However,some patients encounter HCC recurrence after LT.Unfortunately,there is no effective methods to identify the LT patients who have high risk of HCC recurrence and would benefit from adjuvant targeted therapy.The present study aimed to establish a scoring system to predict HCC recurrence of HCC patients after LT among the Chinese population,and to evaluate whether these patients are suitable for adjuvant targeted therapy.Methods:Clinical data of HCC patients who underwent LT from March 2015 to June 2019 were retrospectively collected and analyzed.Results:A total of 201 patients were included in the study.The multivariate Cox analysis suggested that preoperative alpha-fetoprotein(AFP)>200μg/L(HR=2.666,95%CI:1.515-4.690;P=0.001),glutamyl transferase(GGT)>96 U/L(HR=1.807,95%CI:1.012-3.224;P=0.045),and exceeding the Hangzhou criteria(HR=2.129,95%CI:1.158-3.914;P=0.015)were independent risk factors for poor disease-free survival(DFS)in patients with HCC who underwent LT.We established an AFP-GGT-Hangzhou(AGH)scoring system based on these factors,and divided cases into high-,moderate-,and low-risk groups.The differences in overall survival(OS)and disease-free survival(DFS)rates among the three groups were significant(P<0.05).The efficacy of the AGH scoring system to predict DFS was better than that of the Hangzhou criteria,UCSF criteria,Milan criteria,and TNM stage.Only in the high-risk group,we found that lenvatinib significantly improved prognosis compared with that of the control group(P<0.05).Conclusions:The AGH scoring system provides a convenient and effective way to predict HCC recurrence after LT in HCC patients in China.Patients with a high-risk AGH score may benefit from lenvatinib adjuvant therapy after LT.

High prevalence of aspirin resistance in elderly patients with cardiovascular disease and metabolic syndrome

BackgroundMetabolic 症候群被知道是一个 prothrombotic 状态。我们拿了这研究检验阿司匹林抵抗可以与新陈代谢的症候群被联系的一个假设，并且与心血管的疾病(CVD ) 在病人估计阿司匹林抵抗的另外的潜在的决定因素有 CVD 的 469 个老病人全部的 .MethodsA 被招募。有新陈代谢的症候群的 172 个病人并且没有新陈代谢的症候群(控制组) ， 297 收到了每日的阿司匹林治疗(&#x02265；75 mg ) 超过一个月。血小板聚集被轻传播 aggregometry (LTA ) 测量。阿司匹林抵抗被定义为 &#x02265；20% arachidonic 酸(AA )- 并且 &#x02265；70% 腺苷 diphosphate (自动数据处理) 根据 LTA 导致了聚集。阿司匹林半应答者被定义为遇见一个(然而并非) 这些 criteria.ResultsBy LTA， 469 中的 38 个(8.1%) 病人们是阿司匹林抵抗。阿司匹林抵抗的流行与控制组相比在新陈代谢的症候群组是更高的[11.6 % 对 6.6% ，机会比率(或)= 2.039；95% 信心间隔(CI ) ：1.047-3.973 ] 。在 multivariate 逻辑回归分析，新陈代谢的症候群(或 = 4.951， 95% CI：1.440-17.019， P = 0.011 ) 是为有 CVD 和新陈代谢的症候群的病人的重要数字是的阿司匹林 resistance.ConclusionsA 的一个重要风险因素对阿司匹林治疗抵抗。这可能进一步在这些病人增加心血管的病态和死亡的风险。

Molecular phylogeny of Solms-laubachia(Brassicaceae) s.l.,based on multiple nuclear and plastid DNA sequences,and its biogeographic implications

The Hengduan Mountains region of south-west China is a noted biodiversity,hotspot, but the geographic origins and historical assembly of its rich endemic flora, including the sky-island species ofSolms-laubachia Muschl. （Brassicaceae）, have been little studied. Previous molecular studies on the phylogeny of Solms-laubachia showed it to be paraphyletic, leading to considerable expansion not only of its taxonomic limits, but also its geographic range, with the inclusion of taxa from outside the Hengduan region. However, these studies provided little resolution of interspecific relationships, preventing inferences about historical biogeography within the clade. In the present study, new sequence data from two nuclear genes （LEAFY and G3pdh） and two chloroplast intergenic spacers （petN-psbM and psbM-trnD） were combined with existing markers to increase phylogenetic signals. Phaeonychium villosum （Maxim.） Al-Shehbaz was found to be nested within Solms-laubachia s.l. In general, phylogenetic relationships appear to be a good predictor of geography, with the Hengduan Mountain endemics embedded in a paraphyletic grade of species from the western Himalayas and central Asia, but they also imply morphological homoplasy, lncongruence was detected between the nuclear and chloroplast gene trees, perhaps resulting from incomplete lineage sorting of ancestral polymorphisms. The crown age ofSolms-laubachia s.l. was estimated to be approximately 1.42-3.68 mya, using Bayesian relaxed molecular clock analysis. Historical biogeographic analysis using a parametric dispersalextinction-cladogenesis model inferred central Asia and the western Himalayas as most probable ancestral range of Solms-laubachia s.l., and estimated higher rates of eastward expansion than westward during the diversification of descendant lineages. In summary, our results suggest that Solms-laubachia s.l. originated during the Pliocene in central Asia, and subsequently migrated eastward into the Hengduan Mountains, colonizing sky-island, alpine scree-slope habitats that may have provided novel ecological opportunity and accelerated speciation, ultimately establishing this region as the present center of diversity of the genus.

Diabetes mellitus is a risk factor of acute kidney injury in liver transplantation patients

Background: Diabetes mellitus has become an increasing global health burden with rapid growing prevalence. Patients with diabetes have higher susceptibility to acute kidney injury(AKI). Liver transplantation(LT) predisposes the kidney to injury. However, the association between diabetes and AKI in LT patients remains unclear. Methods: We conducted a retrospective cohort study examining risk factors for AKI in patients undergone orthotopic LT. Potential risk factors including baseline estimated glomerular filtration rate(e GFR), the model for end-stage liver disease(MELD) score, diabetes, hypertension and intraoperative blood loss were screened. The primary endpoint was AKI occurrence. Multivariate logistic regression was used to analyze the association between potential risk factors and AKI. Results: A total of 291 patients undergone orthotopic LT were included in the present study. Among them, 102 patients(35.05%) developed AKI within 5 days after LT. Diabetes was identified as an independent risk factor for AKI. Patients who developed AKI had worse graft function recovery and higher mortality within 14 days after LT compared to those who did not develop AKI. AKI patients with diabetes had a significant decline of e GFR within the first postoperative year, compared with patients who did not develop AKI and who developed AKI but without diabetes. Conclusions: Diabetes is an independent risk factor for AKI after orthotopic LT. AKI is associated with delayed graft function recovery and higher mortality in short-term postoperative period. Diabetic patients who developed AKI after LT experience a faster decline of e GFR within the first year after surgery.

DNA-dependent activator of interferon-regulatory factors inhibits hepatitis B virus replication

AIM: To investigate whether DNA-dependent activator of interferon-regulatory factors (DAI) inhibits hepatitis B virus (HBV) replication and what the mechanism is. METHODS: After the human hepatoma cell line Huh7 was cotransfected with DAI and HBV expressing plasmid, viral protein (HBV surface antigen and HBV e antigen) secretion was detected by enzyme-linked immunosorbent assay, and HBV RNA was analyzed by real-time polymerase chain reaction and Northern blotting, and viral DNA replicative intermediates were examined by Southern blotting. Interferon regulatory factor 3 (IRF3) phosphorylation and nuclear translocation were analyzed via Western blotting and immunofluorescence staining respectively. Nuclear factor-B (NF- B) activity induced by DAI was detected by immunofluorescence staining of P65 and dual luciferase reporter assay. Transwell co-culture experiment was performed in order to investigate whether the antiviral effects of DAI were dependent on the secreted cytokines. RESULTS: Viral protein secretion was significantly reduced by 57% (P < 0.05), and the level of total HBV RNA was reduced by 67% (P < 0.05). The viral core particle-associated DNA was also dramatically down-regulated in DAI-expressing Huh7 cells. Analysis of involved signaling pathways revealed that activation of NF-B signaling was essential for DAI to elicit antiviral response in Huh7 cells. When the NF-B signaling pathway was blocked by a NF-B signaling suppressor (I B -SR), the anti-HBV activity of DAI was remarkably abrogated. The inhibitory effect of DAI was independent of IRF3 signaling and secreted cytokines. CONCLUSION: This study demonstrates that DAI can inhibit HBV replication and the inhibitory effect is associated with activation of NF-B but independent of IRF3 and secreted cytokines.

Effect of Helicobacter pylori infection on p53 expression of gastric mucosa and adenocarcinoma with microsatellite instability

AIM: To investigate the relationship between Helicobacter pylori(H pylori) infection, microsatellite instability and the expressions of the p53 in gastritis, intestinal metaplasia and gastric adenocarcinoma and to elucidate the mechanism of gastric carcinogenesis relating to H pylori infection.METHODS: One hundred and eight endoscopic biopsies and gastric adenocarcinoma were available for the study including 33 cases of normal, 45 cases of gastritis, 30 cases of intestinal metaplasia, and 46 cases of gastric adenocarcinoma. Peripheral blood samples of these patients were also collected. H pyloriinfection and p53 expressions were detected by means of streptavidin-peroxidase (SP)immunohistochemical method. Microsatellite loci were studied by PCR-SSCP-CE using the markers BAT-26,D17S261, D3S1283, D2S123, and D3S1611. MSI was defined as the peak shift in the DNA of the gastric tissue compared with that of the peripheral blood samples. Based on the number of mutated MSI markers, specimens were charac-terized as high MSI (MSI-H) if they manifested instability at two or more markers, low MSI (MSI-L) if unstable at only one marker, and microsatellite stable (MSS) if they showed no instability at any marker.RESULTS: H pyloriinfection was detected in the samples of gastritis, intestinal metaplasia, and gastric adenocarcinoma and the infection frequencies were 84.4%, 76.7%, and 65.2%, respectively, whereas no H pylori infection was detected in the samples of normal control. There was a significant difference in the infection rates between gastritis and carcinoma samples (P = 0.035). No MSI was detected in gastritis samples, one MSI-H and two MSI-L were detected among the 30 intestinal metaplasia samples, and 12 MSI-H and 3 MSI-L were detected in the 46 gastric carcinomas.In those gastric carcinomas, the MSI-H frequency in H pyloripositive group was significantly higher than that in H pylorinegative group. No p53 expression was detected in the normal and gastritis samples from dyspeptic patients. P53-positive immunohistochemical staining was detected in 13.3% of intestinal metaplasia samples and in 43.5% of gastric carcinoma samples. The levels of p53 in H pyloripositive samples were higher than those in the negative group when the carcinoma samples were subdivided into H pylori-positive and -negative groups (P = 0.013). Eight samples were detected with positive p53 expression out of the 11 MSI-H carcinomas with H pylorl infection and no p53 expression could be seen in the H pylori-negative samples.CONCLUSION: H pylori affect the p53 pattern in gastric mucosa when MMR system fails to work. Mutations of the p53 gene seem to be an early event in gastric carcinogenesis.

Characterization of the fracture compressibility and its permeability for shale under the effects of proppant embedment and compaction:A preliminary study

Hydraulic fracturing technology plays a key role in improving the recovery rate of shale gas.The improvement of permeability in relation to hydraulic fracturing depends on changes brought about by the proppant on the fracture structure in reservoirs.Then it is of great significance to describe the microscopic changes during this process by means of an accurate theoretical model.In this study,based on the heterogeneity of shale fracture and the compaction and embedment of a proppant,we proposed a permeability model to examine the combined effects of a proppant and stress to describe the change mechanism in permeability.Further,changes in fracture width and porosity were considered,and a calculation model of fracture compressibility under proppant compaction and embedment was proposed.The difference from previous studies is that the compressibility and permeability of supported fractures can be further quantified and analyzed by this model.Moreover,its rationality was verified by publicly released test data.The results show that,the compressive effect of stress and the embedding of proppant both have a negative impact on shale permeability.

Efficacy and safety of sirolimus early conversion protocol in liver transplant patients with hepatocellular carcinoma:A single-arm, multicenter, prospective study

Mammalian target of rapamycin(m TOR) inhibitor as an attractive drug target with promising antitumor effects has been widely investigated. High quality clinical trial has been conducted in liver transplant(LT) recipients in Western countries. However, the pertinent studies in Eastern world are paucity. Therefore, we designed a clinical trial to test whether sirolimus can improve recurrence-free survival(RFS) in hepatocellular carcinoma(HCC) patients beyond the Milan criteria after LT. This is an open-labeled, single-arm, prospective, multicenter, and real-world study aiming to evaluate the clinical outcomes of early switch to sirolimus-based regimens in HCC patients after LT. Patients with a histologically proven HCC and beyond the Milan criteria will be enrolled. The initial immunosuppressant regimens are center-specifc for the frst 4-6 weeks. The following regimens integrated sirolimus into the regimens as a combination therapy with reduced calcineurin inhibitors based on the condition of patients and centers. The study is planned for 4 years in total with a 2-year enrollment period and a 2-year follow-up. We predict that sirolimus conversion regimen will provide survival benefts for patients particular in the key indicator RFS as well as better quality of life. If the trial is conducted successfully, we will have a continued monitoring over a longer follow-up time to estimate indicator of overall survival. We hope that the outcome will provide better evidence for clinical decision-making and revising treatment guidelines based on Chinese population data.

Effect of minimally invasive craniotomy combined with edaravone on cerebral oxygen metabolism, cerebrovascular function and oxidative stress in patients with acute cerebral hemorrhage

Objective:To investigate the effects of minimally invasive craniotomy combined with edaravone on cerebral oxygen metabolism, cerebrovascular function and oxidative stress in patients with acute cerebral hemorrhage.Methods:A total of 100 patients with acute cerebral hemorrhage treated in our hospital from March 2015 to February 2017 were randomly divided into control group and observation group. 50 patients in the control group were treated with minimally invasive craniotomy. On the basis of control group, patients in the observation group were treated with edaravone. Cerebral oxygen metabolism, cerebrovascular function and oxidative stress were measured later in both groups.Results:After treatment, the levels of SOD in both groups increased significantly and MDA levels decreased significantly, and SOD level in the observation group was (97.34±1.95) U/mL, which was significantly higher than the control group, MDA level was (2.77±0.11) mol/L and significantly lower than that of the control group after treatment;After treatment, the levels of ET in both groups were significantly lower than those before treatment, and the levels of CGRP were significantly higher than those before treatment. ET level in observation group was (3.24±0.22) μg/L after treatment, which was significantly lower than that in control group (59.67±0.79) pg/mL, which was significantly higher than the control group;After treatment, the levels of SjvO2, CjvO2 and PbtO2 in both groups were significantly increased compared with before treatment, the levels of Da-jvO2 and CEO2 were significantly lower than the level of before treatment, and the levels of SjvO2, The levels of CjvO2 and PbtO2 were (62.93±1.63)%, (99.31±0.94) mL/L and (28.56±1.55) mmHg, which were significantly higher than the control group. Da-jvO2 and CEO2 levels were (51.31±1.13) mL/L and (30.52±0.43)%, which were significantly lower than the control group.Conclusion: Edaravone combined with minimally invasive craniotomy can effectively reduce the level of oxidative stress, improve endothelial function and cerebral oxygen metabolism, and has reliable curative effect. It is worth further clinical application.

西双版纳傣族自治州青少年儿童斜弱视的流行病学调查

目的:调查云南省西双版纳傣族自治州傣族、哈尼族、拉祜族和当地汉族小学生斜视弱视的患病情况,分析其差异性和危险因素。方法:选取云南省西双版纳傣族自治州少数民族最集中的勐腊县7 214名6~15岁在校小学生,检查包括裸眼视力和最佳矫正视力、屈光度、眼位、眼前节和眼底情况等,并进行Logistic回归分析影响因素。结果:(1)所有研究对象中,斜视患病率为2. 12%(外斜视占85. 62%),弱视患病率为0. 60%(屈光性占74. 42%);(2)斜视患病率在性别、年龄和民族方面比较,差异无统计学意义(P>0. 05),而外斜视患病率在民族方面差异有统计学意义(P<0. 05)。拉祜族比汉族发生外斜视风险高(OR=1. 86,95%CI:1. 12~3. 09)。直系亲属斜视或外斜视者、近视、远视均是斜视的危险因素(P<0. 05,OR>1),其中近视是外斜视的危险因素(OR=2. 13,95%CI:1. 32~3. 44);随近视度数增加,外斜视的OR值增大(P<0. 05);(3)弱视的患病率在性别、年龄、民族方面无差异性(P>0. 05)。Logistic回归分析显示,近视和远视均是弱视的危险因素(P<0. 05,OR>1)。结论:西双版纳傣族自治州少数民族青少年儿童直系亲属有斜视者发生斜视的危险性高,外斜视有一定民族差异性;近视和远视均是斜视、弱视的主要危险因素,斜视、外斜视的患病风险随近视屈光度的增加而加大。

苏尼替尼对雌二醇诱发的去卵巢大鼠子宫内膜渗出和血管通透性的干预作用研究

目的探讨苏尼替尼对雌二醇诱发的去卵巢大鼠血管通透性和子宫内膜渗出的干预作用。方法健康雌性SD大鼠随机分为假手术组(Sham组)、卵巢切除组(Ovx组)、卵巢切除+17β-雌二醇组(Ovx+Est组)、卵巢切除+17-β雌二醇+苏尼替尼组(Ovx+Est+Sut组)4组,每组6只。给药21 d后取材。镜下观察子宫内膜形态学变化,用ELISA法检测各组血清血管内皮细胞生长因子(VEGF)的浓度。结果雌二醇诱发去卵巢SD大鼠给予苏尼替尼干预后,子宫重量和子宫系数下降,子宫内膜嗜酸性粒细胞渗出减少,血清VEGF浓度降低。结论苏尼替尼能拮抗雌二醇诱发子宫内膜的渗出,使大鼠子宫内膜增生,血管通透性下降。

Prevalence of and risk factors for postprandial hypotension in older Chinese men

ObjectiveTo 估计流行并且冒险因素因为在旧、很旧的中国 men.MethodsThe 学习之中的饭后的低血压(PPH ) 65 包括了 349 个中国人并且更旧，组织了进二个年龄范畴：组 1 (旧) 65 ～ 80 年包括了 163 个人；组 2 (很旧) 超过 80 年包括了 186 个人。在饭以后的血压变化被估计由监视的回廊血压的每 15 min。在饭摄取以后并且在相对血压变化处于基线条件站起来和变化以后的症状连续地被观察。另外的基线数据包括了身体团索引，病历，和 PPH 的药 use.ResultsThe 流行总的来说是 59.3% 并且比组织 1 在组 2 是显著地更高的(63.4% 对 54.6% ， P &#x0003c；0.05 ) 。在组 2，在早餐(33.8%) 和午餐(32.1%) 以后的 PPH 的流行在晚饭(20.9%) 以后比那高， P &#x0003c；0.05。高血压和年龄是为 PPH 的重要风险因素(或 = 2.188， 95% CI：1.134 &#x02212； 4.223， P = 0.02；或 = 1.86， 95% CI：1.112 &#x02212； 3.11， P = 0.018，分别地) 。相反， acarbose 使用对 PPH 是保护的(或 = 0.4， 95% CI：0.189 &#x02212； 0.847， P = 0.017 ) 。在血压的减少在 PPH 期间是 20 &#x02212； 40 mmHg 和最大值是 90 mmHg。 PPH 通常发生在 30 &#x02212 ；在饭以后的 60 min 并且持续了 30 &#x02212 ； 120 min.ConclusionsThese 调查结果证明在超过 80 年的人的 PPH 的流行比在 65～80 年的人的那些显著地高，并且血压衰落为超过 80 年的人也是更高的。另外，高血压和年龄是为在老人的 PPH 的主要风险因素，它建议那阻止并且对待的 PPH 是值得的。

Ultrasound-guided paravertebral nerve block anesthesia on the stress response and hemodynamics among lung cancer patients

BACKGROUND Thoracic surgery for radical resection of lung tumor requires deep anesthesia which can lead to an adverse inflammatory response,loss of hemodynamic stability,and decreased immune function.Herein,we evaluated the feasibility and benefits of ultrasound-guided paravertebral nerve block anesthesia,in combination with general anesthesia,for thoracic surgery for lung cancer.The block was performed by diffusion of anesthetic drugs along the paravertebral space to achieve unilateral multi-segment intercostal nerve and dorsal branch nerve block.AIM To evaluate the application of ultrasound-guided paravertebral nerve block anesthesia for lung cancer surgery to inform practice.METHODS The analysis was based on 140 patients who underwent thoracic surgery for lung cancer at our hospital between January 2018 and May 2020.Patients were randomly allocated to the peripheral+general anesthesia(observation)group(n=74)or to the general anesthesia(control)group(n=66).Patients in the observation group received ultrasound-guided paravertebral nerve block anesthesia combined with general anesthesia,with those in the control group receiving an epidural block combined with general anesthesia.Measured outcomes included the operative and anesthesia times,as well as the mean arterial pressure(MAP),heart rate(HR),and blood oxygen saturation(SpO;)measured before surgery,15 min after anesthesia(T1),after intubation,5 min after skin incision,and before extubation(T4).RESULTS The dose of intra-operative use of remifentanil and propofol and the postoperative use of sufentanil was lower in the observation group(1.48±0.43 mg,760.50±92.28 mg,and 72.50±16.62 mg,respectively)than control group(P<0.05).At the four time points of measurement(T1 through T4),MAP and HR values were higher in the observation than control group(MAP,90.20±9.15 mmHg,85.50±7.22 mmHg,88.59±8.15 mmHg,and 90.02±10.02 mmHg,respectively;and HR,72.39±8.22 beats/min,69.03±9.03 beats/min,70.12±8.11 beats/min,and 71.24±9.01 beats/min,respectively;P<0.05).There was no difference in SpO;between the two groups(P>0.05).Postoperative levels of epinephrine,norepinephrine,and dopamine used were significantly lower in the observation than control group(210.20±40.41 pg/mL,230.30±65.58 pg/mL,and 54.49±13.32 pg/mL,respectively;P<0.05).Similarly,the postoperative tumor necrosis factor-αand interleukin-6 levels were lower in the observation(2.43±0.44 pg/mL and 170.03±35.54 pg/mL,respectively)than control group(P<0.05).There was no significant difference in the incidence of adverse reactions between the two groups(P>0.05).CONCLUSION Ultrasound-guided paravertebral nerve block anesthesia improved the stress and hemodynamic response in patients undergoing thoracic surgery for lung cancer,with no increase in the rate of adverse events.

Numerical calculation of hydrodynamic characteristics of tidal currents for submarine excavation engineering in coastal area

In coastal areas with complicated flow movement, deposition and scour readily occur in submarine excavation projects. In this study, a smallscale model, with a high resolution in the vertical direction, was used to simulate the tidal current around a submarine excavation project. The finite volume method was used to solve Navier-Stokes equations and the Reynolds stress transport equation, and the entire process of the tidal current was simulated with unstructured meshes, generated in the irregular shape area, and structured meshes, generated in other water areas.The meshes near the bottom and free surface were densified with a minimum layer thickness of 0.05 m. The volume of fluid method was used to track the free surface, the volume fraction of cells on the upstream boundary was obtained from the volume fraction of adjacent cells, and that on the downstream boundary was determined by the water level process. The numerical results agree with the observed data, and some conclusions can be drawn: after the foundation trench excavation, the flow velocity decreases quite a bit through the foundation trench, with reverse flow occurring on the lee slope in the foundation trench; the swirling flow impedes inflow, leading to the occurrence of dammed water above the foundation trench; the turbulent motion is stronger during ebbing than in other tidal stages, the range with the maximum value of turbulent viscosity, occurring on the south side of the foundation trench at maximum ebbing, is greater than those in other tidal stages in a tidal cycle, and the maximum value of Reynolds shear stress occurs on the south side of the foundation trench at maximum ebbing in a tidal cycle. The numerical calculation method shows a strong performance in simulation of the hydrodynamic characteristics of tidal currents in the foundation trench, providing a basis for submarine engineering construction in coastal areas.

Non-interactive identity-based threshold signature scheme without random oracles

A (t, n) threshold signature scheme distributes the secret key and hence the signing ability to n players in a way that any set of t+1 or more honest players can collaborate to sign, while any set of t players cannot. In this paper we propose an iden- tity-based threshold signature (IBTHS) scheme from bilinear pairings. The signing phase of our scheme is non-interactive, meaning that the signing players do not need to talk to each other. We prove our scheme secure (i.e., unforgeable and robust) in the standard model (i.e., without random oracles). No earlier proposed IBTHS scheme achieved even one of the features of being non-interactive (in the signing phase) and secure in the standard model.

Induction of macrophage inflammatory cytokines by Ox-LDL is ABCA1 dependent

当前的学习试图评估是否的目的由 Ox-LDL 的煽动性的 cytokines 与 ABCA1 的表示有关的巨噬细胞的正式就职小径。巨噬细胞是有处理与 Ox-LDL (30mg/L ) 跟随的 ABCA1 antisense oligonucleotides (100nmol/L ) 的 transfected 的在 THP1/PMA 以后的方法， ABCA1 的表情， ICAM-1 和 MCP-1 mRNA 和蛋白质被决定由即时荧光灯量的 RT-PCR，西方的污点或 ELISA。结果 Ox-LDL 从 THP1/PMA 巨噬细胞在 mRNA 和蛋白质层次导致了 ABCA1， ICAM-1，和 MCP-1 的表情。有 ABCA1 antisense oligonucleotides 的 Transfection 在 12 和 24 个小时以后在 3 和 6 个小时和蛋白质层次以后减少了 ABCA1 mRNA 层次。在由 ABCA1 antisense oligonucleotide 的 ABCA1 蛋白质表示的抑制减少了以后， Ox-LDL 导致的 ICAM-1 和 MCP-1 的表示也被减少。结论巨噬细胞的正式就职由 Ox-LDL 的煽动性的 cytokines 部分依赖于 ABCA1 的表示。我们的研究在巨噬细胞揭示 ABCA1 的新功能。

Co-expression Network Analysis Identifies Fourteen Hub Genes Associated with Prognosis in Clear Cell Renal Cell Carcinoma

Summary:Renal cancer is a common genitourinary malignance,of which clear cell renal cell carcinoma(ccRCC)has high aggressiveness and leads to most cancer-related deaths.Identification of sensitive and reliable biomarkers for predicting tumorigenesis and progression has great significance in guiding the diagnosis and treatment of ccRCC.Here,we identified 2397 common difTerentially expressed genes(DEGs)using paired normal and tumor ccRCC tissues from GSE53757 and The Cancer Genome Atlas(TCGA).Then,we performed weighted gene co-expression network analysis and protein-protein interaction network analysis,17 candidate hub genes were identified.These candidate hub genes were further validated in GSE36895 and Oncomine database and 14 real hub genes were identified.All the hub genes were up-regulated and significantly positively correlated with pathological stage and histologic grade of ccRCC.Survival analysis showed that the higher expression level of each hub gene tended to predict a worse clinical outcome.ROC analysis showed that all the hub genes can accurately distinguish between tumor and normal samples,and between early stage and advanced stage ccRCC.Moreover,all the hub genes were positively associated with distant metastasis,lymph node infiltration,tumor recurrence and the expression of MKi67,suggesting these genes might promote tumor proliferation,invasion and metastasis.Furthermore,the functional annotation demonstrated that most genes were enriched in cell-cycle related biological function.In summary,our study identified 14 potential biomarkers for predicting tumorigenesis and progression,which might contribute to early diagnosis,prognosis prediction and therapeutic intervention.