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沃柑采用香茅草精油-羧甲基壳聚糖复合液涂膜保鲜的效果

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中国南方果树 2024年第3期53卷 28-36页

作者：杜倩洁杨阔周慧琴刘地邓佳王芳西南林业大学林学院昆明650224 西南地区生物多样性保育国家林业和草原局重点实验室昆明650224 西南山地森林资源保育与利用教育部重点实验室昆明650224

为开发安全高效的可食性涂膜用于沃柑采后保鲜,以羧甲基壳聚糖(carboxymethyl chitosan,CMCS)和香茅草精油(XMC)两种天然材料为原料制备复合涂膜材料,并检验复合涂膜材料的理化性质,后以蒸馏水为对照,研究0.5%香茅草精油-1.0%羧甲基壳... 详细信息

为开发安全高效的可食性涂膜用于沃柑采后保鲜,以羧甲基壳聚糖(carboxymethyl chitosan,CMCS)和香茅草精油(XMC)两种天然材料为原料制备复合涂膜材料,并检验复合涂膜材料的理化性质,后以蒸馏水为对照,研究0.5%香茅草精油-1.0%羧甲基壳聚糖复合液涂膜处理对沃柑果实青霉、绿霉病害的防控效果及其对果实抗病防御酶活性和果实品质的影响。结果表明,羧甲基壳聚糖添加香茅草精油后,提高了膜的韧性、完整性、粗糙度和不透明度,降低了膜的水蒸气透过率。0.5%香茅草精油-1.0%羧甲基壳聚糖复合液涂膜处理显著(p<0.05)抑制了沃柑果实青霉、绿霉病的发病率及病斑直径的扩展。与对照(无菌水)相比,0.5%香茅草精油-1.0%羧甲基壳聚糖复合液涂膜处理诱导提高了沃柑果皮中苯丙氨酸解氨酶、过氧化物酶、多酚氧化酶、几丁质酶等抗病相关酶的活性及总酚、类黄酮、花青素等抗性物质的含量,且在整个试验期间(25 d)保持了果实品质。羧甲基壳聚糖加入香茅草精油提高了复合膜的整体性能,0.5%香茅草精油-1.0%羧甲基壳聚糖复合液涂膜处理诱导提高了采后沃柑果实的抗病能力,且能有效地维持果实品质。

关键词：沃柑采后保鲜羧甲基壳聚糖香茅草精油诱导抗病果实品质

维普期刊数据库博看期刊

抗血液型脓病‘华康3号’蚕品种在如皋的适应性研究

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蚕桑通报 2024年第1期55卷 18-21页

作者：周慧勤季晓琴钱荷英如皋市蚕桑技术指导站江苏南通226500 江苏科技大学江苏镇江212003

为了探索‘华康3号’蚕品种在江苏如皋市蚕区的适应性,于2020—2021年间的春秋2个蚕季,对‘华康3号’和‘菁松×皓月’进行对比试验,调查了两对蚕品种的饲养成绩、蚕茧产量、抗病性、蚕茧质量和缫丝成绩等指标。结果表明,‘华康3号’一... 详细信息

为了探索‘华康3号’蚕品种在江苏如皋市蚕区的适应性,于2020—2021年间的春秋2个蚕季,对‘华康3号’和‘菁松×皓月’进行对比试验,调查了两对蚕品种的饲养成绩、蚕茧产量、抗病性、蚕茧质量和缫丝成绩等指标。结果表明,‘华康3号’一日孵化率、发育整齐度以及张种产茧量均优于‘菁松×皓月’,全茧量和茧层率达到或超越‘菁松×皓月’,尤其是强健性指标优势明显,可见‘华康3号’在如皋市蚕区具有很强的适应性,适宜在如皋市大面积推广。

关键词：华康3号抗血液型脓病蚕品种地区适应性

The Diagnosis and Differential Diagnosis of Ureteral Fibroepithelial Polyps

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Chinese Journal of Clinical Oncology 2006年第5期3卷 373-375页

作者： Wanru Geng Ning Li Qi Yu huiqin zhou Hongmin Xu Department of Pathology the Second Affiliated Hospital of the General Hospital of the PLA Beijing 100091 China.

OBJECTIVE To study the clinical pathologic characteristics and differential diagnosis of ureteral fibroepithelial polyps. METHODS One case of ureteral fibroepithelial polyps was studied by clinical data analysis and light microscopy. RESULTS The tumor was located in the lower ureter. Histologically, the polyp was composed of expanded blood vessels and fibrous connective tissue under normal or proliferous transitional epithelium. CONCLUSION Benign ureteral fibroepithelial polyps are extremely rare, recognition of it's precise histological features can facilitate its correct diagnosis.

关键词： fibroepithelial polyps ureteral polyps diagnosis differential diagnosis.

中小学肥胖儿童CTRP3、CTRP9水平与糖脂代谢及胰岛素抵抗的相关性

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国际医药卫生导报 2024年第18期30卷 3080-3084页

作者：程倩倩王婷婷周慧琴李可法梁建军河南中医药大学第六附属医院驻马店市中医院儿科驻马店463000 河南中医药大学第六附属医院驻马店市中医院脑病科驻马店463000

目的探讨中小学肥胖儿童血清补体C1q/肿瘤坏死因子相关蛋白(CTRP)3、CTRP9水平与糖脂代谢及胰岛素抵抗的相关性。方法选取2022年3月至2023年9月驻马店市中医院收治的中小学肥胖儿童80例为肥胖组,年龄8~14岁;同期选取中小学超重儿童76例... 详细信息

目的探讨中小学肥胖儿童血清补体C1q/肿瘤坏死因子相关蛋白(CTRP)3、CTRP9水平与糖脂代谢及胰岛素抵抗的相关性。方法选取2022年3月至2023年9月驻马店市中医院收治的中小学肥胖儿童80例为肥胖组,年龄8~14岁;同期选取中小学超重儿童76例为超重组,年龄8~14岁;同期选取中小学正常体重儿童82例为对照组,年龄8~14岁。收集3组儿童的一般资料(性别、年龄、收缩压、舒张压、腰围、臀围等);采用化学发光免疫法检测空腹胰岛素(FINS)水平,采用葡萄糖氧化酶法检测空腹血糖(FBG)水平,并计算稳态模型胰岛素抵抗指数(HOMA-IR);应用全自动生化分析仪检测总胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)水平;采用酶联免疫吸附试验(ELISA)检测血清CTRP3、CTRP9水平。采用Pearson相关法分析肥胖儿童血清CTRP3、CTRP9与血糖、血脂指标及胰岛素抵抗的相关性;采用多因素logistic回归分析儿童肥胖的影响因素。采用单因素方差分析、SNK-q检验和χ^(2)检验。结果肥胖组腰围、臀围、TC、TG、LDL-C、FINS、FBG、HOMA-IR水平均高于对照组和超重组,且超重组均高于对照组(均P<0.05)。肥胖组HDL-C水平均低于对照组和超重组,且超重组低于对照组(均P<0.05)。肥胖组血清CTRP3[(190.36±60.22)μg/L]、CTRP9[(101.15±26.49)μg/L]水平均低于对照组[(304.83±72.51)μg/L、(152.87±30.96)μg/L]和超重组[(236.75±64.71)μg/L、(124.13±27.89)μg/L],且超重组均低于对照组(均P<0.05)。中小学肥胖儿童血清CTRP3与CTRP9呈正相关(P<0.05),且二者与HDL-C均呈正相关(均P<0.05),与TC、TG、LDL-C、FINS、FBG、HOMA-IR均呈负相关(均P<0.05)。FINS为中小学儿童肥胖的危险因素(P<0.05),CTRP3、CTRP9均为中小学儿童肥胖的保护因素(均P<0.05)。结论血清CTRP3、CTRP9水平降低与中小学儿童肥胖密切相关,可反映儿童糖脂代谢紊乱和胰岛素抵抗。

关键词：肥胖儿童补体C1q/肿瘤坏死因子相关蛋白3 补体C1q/肿瘤坏死因子相关蛋白9 糖脂代谢胰岛素抵抗

A PASSIVATION STUDY OF Ti-MODIFIED Fe—BASE ALLOY SYNTHESIZED BY MAGNETRON SPUTTERING TECHNIQUE

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Acta Metallurgica Sinica(English Letters) 1994年第1期7卷 27-30页

作者： LI huiqin, zhou Honghui, YANG Dejun, SUN DongbaiUniversity of Science and Technology Beijing, China

A set of fracture device was designed on the basis of traditional scratching-electrode technology and used to study the passivation process of two magnetron-sputtered stainless sleel coatings (amorphous and crystalline struture). The results of fracture tests in 3.5 % NaCl aqueous solution show that the amorphous alloy has a high bare surface reactivity and a high passive rate in comparison with the crystalline alloy. The effect of structure on corrosion resistance is also discussed. The excellent corrosion resistance of amorphous alloy is considered to be partly attributed to its great passivation ability.

关键词： passivation kinetics amorphous Fe-base alloy coating,corrosion resistance

高效液相色谱法同时测定晕可平糖浆中9种成分

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化学分析计量 2024年第9期33卷 49-55页

作者：丁爱华吴士龙葛玉松支荣荣周会芹陈玲玲谢斌盐城市食品药品监督检验中心江苏盐城224055

建立高效液相色谱法同时测定晕可平糖浆中5-羟甲基糠醛、丹参素、原儿茶醛、咖啡酸、苯甲酸、毛蕊花糖苷、异毛蕊花糖苷、迷迭香酸、甘草酸9种成分的含量。采用Phenomenex luna C_(18)色谱柱(250 mm×4.6 mm,5μm),以乙腈-0.05%三氟乙... 详细信息

建立高效液相色谱法同时测定晕可平糖浆中5-羟甲基糠醛、丹参素、原儿茶醛、咖啡酸、苯甲酸、毛蕊花糖苷、异毛蕊花糖苷、迷迭香酸、甘草酸9种成分的含量。采用Phenomenex luna C_(18)色谱柱(250 mm×4.6 mm,5μm),以乙腈-0.05%三氟乙酸溶液为流动相进行梯度洗脱,流量为1 mL/min,柱温为25℃,检测波长分别为245 nm(苯甲酸、甘草酸)、280 nm(5-羟甲基糠醛、丹参素、原儿茶醛)和330 nm(咖啡酸、毛蕊花糖苷、异毛蕊花糖苷、迷迭香酸)。9种成分的质量浓度在各自范围内与对应的色谱峰面积线性关系良好,相关系数均为0.9999,方法检出限为0.01~0.21μg/mL,定量限为0.02~0.68μg/mL。样品加标平均回收率为96.9%~105.0%,测定结果的相对标准偏差为1.3%~3.4%(n=6)。该方法简便可靠,重复性好,可用于晕可平糖浆的质量控制。

关键词：晕可平糖浆指标成分高效液相色谱法

Isothiocyanates Induce Apoptosis in Human Non-Small Cell Lung Cancer Cells through a Redox-Mediated Mechanism

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中国肺癌杂志 2009年第6期12卷 471-472页

作者： Ke XU Yu ZHU Xiang WU huiqin YAN Qinghua zhou Tianjin Key Laboratory o fLung Cancer Metastasis and Tumor Microenviroment Tianjin Lung Cancer Institute Tianjin Medical University General Hospitalj Tianjin 300052 China

Purpose Lung cancer is one of the most aggressive cancer types, and is the leading cause of cancer-related deaths worldwide. Isothiocyanates are natural compounds found in

关键词：肺癌系统评价治疗紫极类药物

Genomic divergence and mutation load in the Begonia masoniana complex from limestone karsts

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Plant Diversity 2024年第5期46卷 575-584页

作者： Yiqing Chen Lina Dong huiqin Yi Catherine Kidner Ming Kang Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China Guangzhou 510650China University of Chinese Academy of Sciences Beijing 100049China Guangxi Key Laboratory of Conservation and Restoration Ecology in Karst Terrain Guangxi Institute of BotanyGuangxi Zhang Autonomous Region and the Chinese Academy of SciencesGuilin 541006China Institute of Molecular Plant Sciences University of EdinburghDaniel Rutherford Building Max Born CrescentThe King's BuildingsEdinburgh EH93BFUK Royal Botanic Garden Edinburgh 20a Inverleith RowEdinburgh EH35LRUK State Key Laboratory of Plant Diversity and Specialty Crops South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China

Understanding genome-wide diversity,inbreeding,and the burden of accumulated deleterious mutations in small and isolated populations is essential for predicting and enhancing population persistence and ***,these effects are rarely studied in limestone karst ***,we re-sequenced the nuclear genomes of 62 individuals of the Begonia masoniana complex(***,***,*** and ***)and investigated genomic divergence and genetic load for these four *** analyses revealed four distinct clusters corresponding to each species within the ***,there was only limited admixture between *** and *** occurring in overlapping geographic *** species experienced historical bottlenecks during the Pleistocene,which were likely caused by glacial climate *** detected an asymmetric historical gene flow between group pairs within this timeframe,highlighting a distinctive pattern of interspecific divergence attributable to karst geographic *** found that isolated populations of *** have limited gene flow,the smallest recent population size,the highest inbreeding coefficients,and the greatest accumulation of recessive deleterious *** findings underscore the urgency to prioritize conservation efforts for these isolated *** study is among the first to disentangle the genetic differentiation and specific demographic history of karst Begonia plants at the whole-genome level,shedding light on the potential risks associated with the accumulation of deleterious mutations over generations of ***,our findings may facilitate conservation planning by providing critical baseline genetic data and a better understanding of the historical events that have shaped current population structure of rare and endangered karst plants.

关键词： Conservation genomics Karst landscape Demographic history Inbreeding Isolated populations Mutation load

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抗生素在儿童急性鼻窦炎中的合理应用

临床耳鼻咽喉头颈外科杂志 2021年第8期35卷 752-755页

作者：周慧琴许昱武汉大学人民医院耳鼻咽喉头颈外科武汉430060

急性鼻窦炎(acute rhinosinusitis, ARS)是由病原微生物如病毒或细菌等引起的鼻腔和鼻窦黏膜急性感染性疾病,症状持续时间不超过12周[1]。最近的一项研究表明,ARS的发病率约为18%[2]。

关键词：抗生素鼻窦炎儿童