Operation Modes for Land Consolidation in Central Anhui Based on Beautiful Countryside Construction

Firstly,the background of beautiful countryside construction was elaborated.The operation modes for land consolidation in central Anhui were divided into five areas:northern Anhui,central Anhui,area along Yangtze River,western Anhui,and southern Anhui.Through empirical analysis of land consolidation in Changfeng County,it came up with recommendations with reference to practice in Changfeng County and discussed the beautiful countryside construction in central Anhui.

Investigation and Hazard Assessment of Invasive Alien Plants on the Campus of Tongren University

[Objectives]The paper was to investigate and assess the species,distribution and hazard status of invasive alien plants on the campus of Tongren University.[Methods]A survey was conducted using line survey method,and the risk assessment index system of invasive alien plants was established by analytic hierarchy process(AHP).[Results]There were 11 species of invasive alien plants on the campus of Tongren University,belonging to 8 genera and 5 families.There were 6 species of invasive alien plants belonging to Asteraceae,accounting for 54.55%of the total.In terms of the origin of invasive plants,most of them were native to North America and Europe,accounting for 27.27%of the total.In terms of harmful level,there were no high-risk invasive plants on the campus of Tongren University,but Alternanthera philoxeroides had the highest score and was the most harmful.[Conclusions]The present situation of alien plant invasion on the campus of Tongren University is closely related to the ecological environment of the campus.It is suggested to strengthen the management of campus plants,focus on the prevention and control of A.philoxeroides,and carry out regular investigation of invasive alien plants on campus to ensure the ecological safety of the campus.

Efficacy and safety of endoscopic retrograde cholangiopancreatography in recurrent pancreatitis of pediatric asparaginase-associated pancreatitis

BACKGROUND Asparaginase(ASP)is an important drug in combined chemotherapy regimens for pediatric acute lymphoblastic leukemia(ALL);ASP-associated pancreatitis(AAP)is the main adverse reaction of ASP.Recurrent pancreatitis is a complication of AAP,for which medication is ineffective.AIM To evaluate the efficacy and safety of endoscopic retrograde cholangiopancreatography(ERCP)in treating recurrent pancreatitis due to AAP.METHODS From May 2018 to August 2021,ten children(five males and five females;age range:4–13 years)with AAP were treated using ERCP due to recurrent pancreatitis.Clinical data of the ten children were collected,including their sex,age,weight,ALL risk grading,clinical symptoms at the onset of pancreatitis,time from the first pancreatitis onset to ERCP,ERCP operation status,and postoperative complications.The symptomatic relief,weight change,and number of pancreatitis onsets before and after ERCP were compared.RESULTS The preoperative symptoms were abdominal pain,vomiting,inability to eat,weight loss of 2-7 kg,and 2-9 pancreatitis onsets.After the operation,nine of ten patients did not develop pancreatitis,had no abdominal pain,could eat normally;the remaining patient developed three pancreatitis onsets due to the continuous administration of ASP,but eating was not affected.The postoperative weight gain was 1.5-8 kg.There was one case of post ERCP pancreatitis and two cases of postoperative infections;all recovered after medication.CONCLUSION ERCP improved clinical symptoms and reduced the incidence of pancreatitis,and was shown to be a safe and effective method for improving the management of recurrent pancreatitis due to AAP.

阴道灌洗液中炎症因子与CD4^(+)和CD8^(+)T细胞在高级别宫颈鳞状上皮内病变与早期宫颈癌发病中的作用研究

目的:探讨阴道灌洗液中CD4^(+)与CD8^(+)T细胞亚群分布及局部炎症因子水平在高级别宫颈鳞状上皮内病变(high-grade cervical squamous intraepithelial lesions,HSIL)与早期宫颈鳞癌发病中的作用。方法:收集桂林市人民医院高危型人类乳头状瘤病毒(high-risk human papilloma virus,HR-HPV)感染的HSIL患者120例和早期宫颈癌(cervical cancer,CC)患者144例的临床资料。并随机选取未感染HR-HPV的健康女性60例作为对照组。比较3组患者的临床资料、血清和宫颈灌洗液炎症因子(IL-2、INF-γ、IL-10、TNF-α)、CD4^(+)与CD8^(+)T细胞分布与比值。多因素逻辑回归分析HSIL进展至早期CC的影响因素,绘制ROC及校准图对模型评估。结果:对照组、HSIL组与早期CC组患者血IL-2、INF-γ、IL-10、TNF-α水平、CD4^(+)细胞分布、CD8^(+)T细胞分布与CD4^(+)/CD8^(+)比值比较,差异均无统计学意义(均P>0.05);3组患者阴道灌洗液中IL-2、INF-γ、IL-10、TNF-α水平、CD4^(+)细胞分布、CD8^(+)T细胞分布与CD4^(+)/CD8^(+)比值比较,差异均具有统计学意义(均P<0.05),且早期CC组高于HSIL组及对照组(均P<0.05),HSIL组高于对照组(P<0.05)。逻辑回归分析显示,模型2中产次>2次(OR=3.119,95%CI:4.353~6.737)与阴道灌洗液CD4^(+)T细胞百分比(OR=0.327,95%CI:0.188~0.478)(P<0.001,AUC=0.908),模型3中CD4^(+)/CD8^(+)(OR=0.809,95%CI:0.356~1.868)(P<0.001,AUC=0.873)对HSIL发展至早期CC有独立影响;两模型ROC曲线无明显差异(Z=1.550 4,P=0.121)。模型3中仅用CD4^(+)/CD8^(+)就能良好预测,该模型为优,该模型校准曲线与标准曲线接近。结论:HR-HPV感染后,宫颈局部免疫状态参与HSIL及HSIL进展至早期CC,且CD4^(+)/CD8^(+)T细胞比值可作为其独立保护因素。

Transient elastography with controlled attenuation parameter for the diagnosis of colorectal polyps in patients with nonalcoholic fatty liver disease

BACKGROUND The severity of nonalcoholic fatty liver disease(NAFLD)and lipid metabolism are related to the occurrence of colorectal polyps.Liver-controlled attenuation parameters(liver-CAPs)have been established to predict the prognosis of hepatic steatosis patients.AIM To explore the risk factors associated with colorectal polyps in patients with NAFLD by analyzing liver-CAPs and establishing a diagnostic model.METHODS Patients who were diagnosed with colorectal polyps in the Department of Gastroenterology of our hospital between June 2021 and April 2022 composed the case group,and those with no important abnormalities composed the control group.The area under the receiver operating characteristic curve was used to predict the diagnostic efficiency.Differences were considered statistically significant when P<0.05.RESULTS The median triglyceride(TG)and liver-CAP in the case group were significantly greater than those in the control group(mmol/L,1.74 vs 1.05;dB/m,282 vs 254,P<0.05).TG and liver-CAP were found to be independent risk factors for colorectal polyps,with ORs of 2.338(95%CI:1.154–4.733)and 1.019(95%CI:1.006–1.033),respectively(P<0.05).And there was no difference in the diagnostic efficacy between liver-CAP and TG combined with liver-CAP(TG+CAP)(P>0.05).When the liver-CAP was greater than 291 dB/m,colorectal polyps were more likely to occur.CONCLUSION The levels of TG and liver-CAP in patients with colorectal polyps are significantly greater than those patients without polyps.Liver-CAP alone can be used to diagnose NAFLD with colorectal polyps.

Microfacies and diagenetic alteration in a semi-deep to deep lacustrine shale: The Yanchang Formation in the Ordos Basin, China

The mineralogical development and diagenetic sequence of lacustrine shales in the Chang 7 Member of the Yanchang Formation in the Ordos Basin are detailed studied.A model of their depositional system and a diagenetic diagram are proposed in this study.Through detailed petrographic,mineralogical,and elemental analyses,four distinct shale types are identified:argillaceous shale,siliceous shale,calcareous shale,and carbonate,clay,and silt-bearing shale.The main diagenetic process in argillaceous shale is the transformation of illite to smectite,negatively impacting shale porosity.Siliceous shale undergoes carbonate cementation and quartz dissolution,contributing to increased porosity,particularly in mesopores.Calcareous shale experiences diagenesis characterised by carbonate formation and dissolution,with a prevalence of siderite.In carbonate,clay,and silt-bearing shale,the dissolution of K-feldspar contributes to illitization of kaolinite.Argillaceous shale,characterised by more clay minerals and lower mesopore volume,is identified as a potential hydrocarbon seal.Siliceous shale,with the highest pore volume and abundant inter-mineral pores,emerges as a promising shale oil reservoir.These findings contribute to a comprehensive understanding of shale properties,aiding in the prediction of shale oil exploration potential in the studied area.

Comparing the efficacy and safety of low,medium,and high dosages of selexipag for treating pulmonary hypertension:A systematic review and meta-analysis

Background:The maintenance dosage of selexipag is categorized as low,medium or high.In order to assess the efficacy and safety of different dosages of selexipag for the risk stratification of pulmonary arterial hypertension(PAH),we performed a sys-tematic review and meta-analysis.Methods:Studies assessing PAH risk stratification indices,such as the World Health Organization functional class(WHO-FC),six-minute walk distance(6MWD),N-terminal pro-B-type natriuretic peptide(NT-proBNP)level,right atrial pressure(RAP),cardiac index(CI)and mixed venous oxygen saturation(SvO2),were included.Results:Thirteen studies were included.Selexipag led to improvements in the 6MWD(MD:24.20 m,95%CI:10.74-37.67),NT-proBNP(SMD:-0.41,95%CI:-0.79-0.04),CI(MD:0.47 L/min/m^(2),95%CI:0.17-0.77)and WHO-FC(OR:0.564,95%CI:0.457-0.697).Subgroup analysis demonstrated that all three dosages improved the 6MWD.A moderate dosage led to improvements in the CI(MD:0.30 L/min/m^(2),95%CI:0.15-0.46)and WHO-FC(OR:0.589,95%CI:0.376-0.922).Within 6 months of treatment,only the WHO-FC and CI were significantly improved(OR:0.614,95%CI:0.380-0.993;MD:0.30 L/min/m^(2),95%CI:0.16-0.45,respectively).More than 6 months of treatment significantly improved the 6MWD,WHO-FC and NT-proBNP(MD:40.87 m,95%CI:10.97-70.77;OR:0.557,95%CI:0.440-0.705;SMD:-0.61,95%CI:-1.17-0.05,respectively).Conclusions:Low,medium,and high dosages of selexipag all exhibited good effects.When treatment lasted for more than 6 months,selexipag exerted obvious effects,even in the low-dosage group.This finding is important for guiding individualized treatments.

CircPMS1 promotes proliferation of pulmonary artery smooth muscle cells,pulmonary microvascular endothelial cells,and pericytes under hypoxia

Background:Circular RNAs(circRNAs)have been recognized as significant regulators of pulmonary hypertension(PH);however,the differential expression and function of circRNAs in different vascular cells under hypoxia remain unknown.Here,we identified co-differentially expressed circRNAs and determined their putative roles in the proliferation of pulmonary artery smooth muscle cells(PASMCs),pulmonary microvascular endothelial cells(PMECs),and pericytes(PCs)under hypoxia.Methods:Whole transcriptome sequencing was performed to analyze the differential expression of circRNAs in three different vascular cell types.Bioinformatic analysis was used to predict their putative biological function.Quantitative real-time polymerase chain reaction,Cell Counting Kit-8,and EdU Cell Proliferation assays were carried out to determine the role of circular postmeiotic segregation 1(circPMS1)as well as its potential sponge mechanism in PASMCs,PMECs,and PCs.Results:PASMCs,PMECs,and PCs exhibited 16,99,and 31 differentially expressed circRNAs under hypoxia,respectively.CircPMS1 was upregulated in PASMCs,PMECs,and PCs under hypoxia and enhanced the proliferation of vascular cells.CircPMS1may upregulate DEP domain containing 1(DEPDC1)and RNA polymerase II subunit D expression by targeting microRNA-432-5p(miR-432-5p)in PASMCs,upregulate MAX interactor 1(MXI1)expression by targeting miR-433-3p in PMECs,and upregulate zinc finger AN1-type containing 5(ZFAND5)expression by targeting miR-3613-5p in PCs.Conclusions:Our results suggest that circPMS1 promotes cell proliferation through the miR-432-5p/DEPDC1 or miR-432-5p/POL2D axis in PASMCs,through the miR-433-3p/MXI1 axis in PMECs,and through the miR-3613-5p/ZFAND5 axis in PCs,which provides putative targets for the early diagnosis and treatment of PH.

强迫睁眼对健康人群非侵入性泪膜破裂时间的影响

目的:观察健康人群强迫睁眼前后Oculus眼表综合分析仪所测非侵入性泪膜破裂时间和干眼分级有无差异。方法:前瞻性病例自身对照研究。40例志愿者接受此项检查,分别于强迫睁眼前后行Oculus眼表综合分析仪非侵入性首次泪膜破裂时间(non-invasive first tear film break-up time,NIBUTf)和非侵入性平均泪膜破裂时间(non-invasive average tear film break-up time,NIBUTav)检查,仪器自动进行干眼分级。首次检查先右眼后左眼,第二次检查先左眼后右眼。结果:首次检查眼(即强迫睁眼前)NIBUTf均值为9.18±5.52s、NIBUTav均值为11.74±5.59s,干眼各级所占百分比分别为43%、37%、20%;第二检查眼(强迫睁眼后)NIBUTf均值为8.91±5.54s,NIBUTav均值为11.76±5.58s,干眼各级所占百分比分别为35%、48%、16%。健康人群强迫睁眼前后双眼NIBUTf、NIBUTav和干眼分级比较,差异无统计学意义(t=0.37,P=0.72;t=-0.038,P=0.97;Z=-0.42,P=0.68)。结论:健康人群强迫睁眼前后眼表综合分析仪所测非侵入性泪膜破裂时间和干眼分级无影响。

IL-17在眼部疾病中的作用研究进展

白细胞介素-17(IL-17)是自身免疫疾病和许多炎性疾病的重要促炎因子。越来越多的研究表明,IL-17在眼部疾病的发病机制中也起到关键作用。本文对IL-17在角膜炎、干眼、葡萄膜炎、糖尿病视网膜病变、年龄相关性黄斑变性中的作用及机制进行综述,为治疗这类疾病提供新的思路和靶点。

基于短鼻胆管导丝引出法探讨自制引导器在鼻胆管口鼻转换中的应用价值

目的基于短鼻胆管导丝引出法探讨自制引导器在鼻胆管口鼻转换中的应用价值。方法回顾性分析2021年5月-2021年6月同济大学附属东方医院120例行内镜下鼻胆管引流术(ENBD)患者的临床资料,根据引导器的类型分为:A组(乳头扩张球囊导管头端制作引导器,n=60)、B组(取石球囊导管头端制作引导器,n=40)和C组(不使用引导器,n=20)。比较3组患者鼻胆管引出时间,患者对刺激的反应程度评分以及鼻黏膜出血发生率。结果A组鼻胆管引出时间为(5.13±0.85)s,B组为(7.20±0.88)s,C组为(11.30±1.42)s,3组患者比较,差异有统计学意义(F=303.04,P=0.000);A组对刺激的反应程度评分为1.00(1.00,1.00)分,B组为2.00(1.00,2.00)分,C组为2.00(2.00,3.00)分,3组患者比较,差异有统计学意义(Z=47.89,P=0.000);A组鼻黏膜出血率1.67%(1/60),B组为20.00%(8/40),C组为40.00%(8/20),3组患者比较,差异有统计学意义(χ~2=19.81,P=0.000)。结论采取短鼻胆管导丝引出法行鼻胆管口鼻转换时,使用乳头扩张球囊导管制作引导器,可加快鼻胆管引出速度,减轻患者不适反应,减少鼻黏膜副损伤,值得临床推广。

CPET评价冠状动脉粥样硬化性心脏病患者的临床意义

目的探讨冠状动脉粥样硬化性心脏病(以下简称冠心病)对患者静息态及运动后的心脏功能的影响,心肺运动试验(CPET)对冠心病患者的评价意义。方法将243例行CPET患者分为冠心病组及对照组,比较分析患者的一般资料、超声心动图、CPET资料及合并疾病、冠心病病史和病变情况。结果两组患者左室射血分数(LVEF)比较无差异(P>0.05),冠心病组峰值摄氧量低于对照组(P<0.05),冠心病组峰值摄氧量占预计值的百分比低于对照组(P<0.05)。结论冠心病对患者运动后心脏储备功能的损伤早于对静息态LVEF的影响,建议对冠心病患者行CPET并对运动后心脏储备功能进行评价。

Quantitative and Comprehensive Prediction of Shale Oil Sweet Spots in Qingshankou Formation, Songliao Basin

The mud shale of Qingshankou Formation in Songliao Basin is the main rock source and contains rich shale oil resources. The successful development of shale oil depends on evaluating and optimizing the “sweet spots”. To accurately identify and optimize the favorable sweet spots of shale oil in Qingshankou Formation, Songliao Basin, the original logging data were preprocessed in this paper. Then the thin mud shale interlayer of Qingshankou Formation was identified effectively by using the processed logging data. Based on the artificial neural network method, the mineral content of mud shale in Qingshankou Formation was predicted. The lithofacies were identified according to the mineral and TOC content. Finally, a three-dimensional (3-D) model of total organic carbon (TOC), vitrinite reflectance (Ro), mineral content, and rock of Qingshankou Formation in Songliao Basin was established to evaluate and predict the favorable sweet spots of shale oil in the study area. The results show that there are a lot of calcareous and siliceous thin interlayers in Qingshankou Formation, and TOC content is generally between 2% and 3%. Ro is the highest in Gulong sag, followed by Sanzhao sag. The lithofacies mainly consists of felsic shale and mixed shale, mainly in the first member of Qingshankou Formation. Comprehensive analysis shows that shale oil development potential is enormous in the eastern part of Sanzhao Sag and the northern part of Gulong Sag.

Computer Use among Different Gender Medical Students in Inner Mongolia Medical University in China

Objective: The purpose of this study was to evaluate the difference of computer use and the negative effects for different gender in the Medical University of Inner Mongolia. Methods: A cross-sectional census was conducted on medical students on campus in 2013. Descriptive results were expressed as percentage, prevalence and means ± S.D. Gender differences of using computer time and using computer purpose for male and female students were analyzed by chi-square test. Results: Students using computer more than three hours per day had higher headache prevalence and poor academic performance prevalence than that less than three hours per day. The prevalence of male students using computer more than three hours per day was significantly higher than female students (x2 = 72.92, p p < 0.001). Conclusion: Using computer for long time brings more students headache and poor academic performance. These results suggest that using computer time reasonably and learning efficiently among university students are necessary, especially for male.

食管鳞癌患者根治性放疗预后列线图模型的构建—泛京津冀多中心回顾分析(3JECROG R-03A)

目的:构建列线图(nomogram)模型以预测食管鳞癌患者的预后情况,指导个体化治疗。方法:回顾性分析2002年1月至2016年12月国内10家放疗中心(泛京津冀食管癌协作组-3JECROG)收治的2680例根治性放疗食管鳞癌患者资料,随机分为训练组和验证组,根据训练组的预后因素构建nomogram模型,并进行训练组内部和验证组外部验证。分别以nomogram模型与AJCC/UICC分期评估两组患者预后及临床获益。结果:全组1、3、5年生存率分别为69.0%、37.7%、31.0%。多因素分析肿瘤部位、TNM分期、原发肿瘤体积和是否同步化疗是影响食管癌的独立预后因素(均P<0.05)。在训练组和验证组中nomogram模型的一致性指数(C-index)、AUC值均高于AJCC/UICC分期(均P<0.001)。基于nomogram模型分为低、中、高风险亚组与AJCC/UICC分期比较,nomogram模型的生存曲线之间具有显著性差异(P<0.001),且1、3、5年的总生存临床决策曲线(decision curve analysis,DCA)下面积均具有显著性差异。结论:本研究构建的nomogram模型较AJCC/UICC分期具有更好的预测能力,有助于食管癌患者的预后判断及指导个体化治疗。

废液积漏袋应用于内镜逆行胰胆管造影术中的疗效观察

目的探讨废液积漏袋在内镜逆行胰胆管造影术(ERCP)中的应用效果。方法选择2022年1月-2022年7月同济大学附属东方医院实施ERCP的患者315例,按随机数表法分为试验组(147例,使用废液积漏袋)和对照组(168例,不使用废液积漏袋),比较两组患者ERCP术中内镜视野暴露满意度、操作间地面污染率、操作者手术衣污染率、操作间清洁时间及术后患者腹胀发生率。结果试验组废液积漏袋收集肠液(9.00±2.61)mL;试验组内镜视野满意度评分为(8.08±1.94)分,高于对照组的(6.76±2.34)分,差异有统计学意义(t=5.41,P<0.01);试验组操作间地面污染率为8.16%(12/147),操作者手术衣污染率为3.40%(5/147),术后患者腹胀发生率为14.29%(21/147),低于对照组的36.31%(61/168)、14.88%(25/168)和38.10%(64/168),差异均有统计学意义(χ^(2)=34.89、χ^(2)=11.99和χ^(2)=22.56,P<0.01);试验组操作间清洁时间为(25.90±3.74)min,短于对照组的(27.52±5.57)min,差异有统计学意义(t=2.99,P<0.01)。结论ERCP术中使用废液积漏袋,能减少气体及肠液的外溢,收集外溢的肠液可减少污染,降低患者术后腹胀发生率,减少医院交叉感染及医护人员职业暴露风险,值得临床推广应用。

树鼩细菌性角膜炎感染模型的建立及IL-17在模型中的表达

目的:建立树鼩铜绿假单胞菌和金黄色葡萄球菌性角膜炎感染模型,并观察IL-17在模型中的表达,初步探讨IL-17在树鼩细菌性角膜炎中的作用。方法:采用接触镜辅助的角膜划痕法建立树鼩细菌性角膜炎模型。在进行接种后第1、4、7、14d使用前段照相、活体共聚焦显微镜对模型感染症状进行评估,制作病理切片观察角膜组织病理学改变。在相应时间点进行取材,实时荧光定量PCR检测树鼩角膜组织中IL-17 mRNA的表达,ELISA检测IL-17蛋白表达水平。结果:树鼩铜绿假单胞菌和金黄色葡萄球菌性角膜炎模型造模成功率为96%、100%,树鼩细菌性角膜炎临床表现、炎症细胞浸润情况和组织病理改变规律相吻合。IL-17基因和蛋白的表达情况在树鼩角膜中与角膜炎症的严重情况一致。结论:采用接触镜辅助的角膜划痕法可成功建立更接近人细菌性角膜炎自然感染病程的树鼩铜绿假单胞菌和金黄色葡萄球菌性角膜炎动物模型。IL-17参与树鼩细菌性角膜炎发生发展的过程。

铜绿假单胞菌性角膜炎发病机制的研究进展

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