检索结果-南通市图书馆

storage time affects the level and diagnostic efficacy of plasma biomarkers for neurodegenerative diseases

Neural Regeneration Research 2025年第8期20卷 2373-2381页

作者： Lifang Zhao Mingkai Zhang Qimeng Li Xuemin Wang Jie Lu Ying Han Yanning Cai Department of Clinical Biobank Xuanwu HospitalCapital Medical UniversityBeijingChina Beijing Geriatric Medical Research Center BeijingChina Department of Neurology Xuanwu HospitalCapital Medical UniversityBeijingChina Department of Radiology and Nuclear Medicine Xuanwu HospitalCapital Medical UniversityBeijingChina Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics BeijingChina Key Laboratory of Neurodegenerative diseases Ministry of EducationBeijingChina School of Biomedical Engineering Hainan UniversityHaikouHainan ProvinceChina Center of Alzheimer’s Disease Beijing Institute for Brain DisordersBeijingChina National Clinical Research Center for Geriatric Diseases BeijingChina Institute of Biomedical Engineering Shenzhen Bay LaboratoryGaoke Innovation CenterShenzhenGuangdong ProvinceChina Department of Neurobiology Xuanwu HospitalCapital Medical UniversityBeijingChina

Several promising plasma biomarker proteins,such as amyloid-β(Aβ),tau,neurofilament light chain,and glial fibrillary acidic protein,are widely used for the diagnosis of neurodegenerative ***,little is known about the long-term stability of these biomarker proteins in plasma samples stored at-80°*** aimed to explore how storage time would affect the diagnostic accuracy of these biomarkers using a large *** samples from 229 cognitively unimpaired individuals,encompassing healthy controls and those experiencing subjective cognitive decline,as well as 99 patients with cognitive impairment,comprising those with mild cognitive impairment and dementia,were acquired from the Sino Longitudinal Study on Cognitive Decline *** samples were stored at-80°C for up to 6 years before being used in this *** results showed that plasma levels of Aβ42,Aβ40,neurofilament light chain,and glial fibrillary acidic protein were not significantly correlated with sample storage ***,the level of total tau showed a negative correlation with sample storage ***,in individuals without cognitive impairment,plasma levels of total protein and tau phosphorylated protein threonine 181(p-tau181)also showed a negative correlation with sample storage *** was not observed in individuals with cognitive ***,we speculate that the diagnostic accuracy of plasma p-tau181 and the p-tau181 to total tau ratio may be influenced by sample storage ***,caution is advised when using these plasma biomarkers for the identification of neurodegenerative diseases,such as Alzheimer's ***,in cohort studies,it is important to consider the impact of storage time on the overall results.

关键词： Alzheimer’s disease amyloid-β diagnostic ability glial fibrillary acidic protein neurodegeneration neurofilament light chain plasma biomarkers single molecule array storage time tau

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Influence of storage time on Pollen Traits in Actinidia eriantha

引用

Agricultural Sciences 2016年第6期7卷 373-382页

作者： Umut Ahmet Seyrek Xueyan Qu Chunhui Huang Junjie Tao Min Zhong Han Wu Xiaobiao Xu College of Agronomy Jiangxi Agricultural University Nanchang China

We examined the influence of storage time on germinability and tube growth of freeze stored pollens collected from 25 wild male plants in Actinidia eriantha variety. Pollens were stored in freezer at - 20°C for six months and one year periods to determine changing at germinability in time. In vitro germination was conducted in certain cultural medium defined for Actinidia genus. The results showed that the germination percentages and tube lengths of genotypes decreased at the end of storage period. MH22, MH45, MH47, MH56, MH67, MH70, MH71, MH72, MH74, MH55 and MH61 genotypes were evaluated as vigor genotypes, because they maintained their viability and germination capability displaying statistically insignificant decreasing although their tube lengths significantly decreased except MH67. This investigation provided to determine some robust wild male germplasm resources in A. eriantha in point of durability of pollens against long term conservation for using at future pollination and breeding programs.

关键词： Actinidia eriantha Genotype Freeze storage storage time Pollen Germination Pollen Tube Growth

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effects of storage time on External and Internal Characteristics of Lutein Enriched Eggs

引用

Journal of Agricultural Science and Technology(B) 2015年第9期5卷 643-646页

作者： Kanda Lokaewmanee Peeyanut Meesrri Faculty of Natural Resources and Agro-Industry Kasetsart University Chalermphrakiat Sakon Nakhon Province Campus SakonNakon 47000 Thailand

In this paper, the effects of storage time on the external and internal characteristics of lutein enriched eggs were studied. A total of 330 lutein eggs were stored at room temperature （30℃） for periods of 0, 3, 5, 7, 9, 11, 13, 15, 17, 19 and 21 d, respectively. At the end of each storage period, 30 lutein eggs were evaluated for egg quality. storage time from 0 d to 21 d did not affect the eggshell thickness, shell ratio and yolk color （P 〉 0.05）. The effect of days in storage was statistically significant on the albumen ratio and Haugh unit （P 〈 0.05）, both of which decreased with increasing days of storage. Conversely, egg water loss and the yolk ratio increased with increasing days of storage （P 〈 0.05）. At the end of storage, the lutein value in the eggs was close to the value at the beginning of storage. The results indicated that storage time did not produce an adverse effect on the eggshell thickness, shell ratio, yolk color and concentration of lutein in lutein enriched eggs.

关键词： storage time characteristics lutein enriched eggs.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effects of Cooking Temperature and storage time on the Quality of Macadamia Nut Oil

引用

生物工程前沿（中英文版） 2023年第2期10卷 15-26页

作者： Yao Liu Guang Yang Jie Song Guifang Yang Jinyun Zhang Shijun Wu School of Gardening and Food Guangdong Eco-engineering PolytechnicGuangzhouGuangdong510520China

The purpose is to study the influence of cooking and storage habits on the quality of macadamia nut oil,so as to provide reference for macadamia nut processingenterprises and *** oil was treated at 100℃,200℃,300℃,microwave heating,45℃constant temperature storage,natural light for different times,and its acid value,peroxide value,squalene,sterol and fatty acid content were detected according to the national standard *** results showed that the acid value and peroxide value increased with *** acid value and peroxide value of macadamia oil cooked at 300℃and stored under natural light were higher than those heated by microwave and stored at 45℃,and increased rapidly with the increase of cooking and light *** acid value was as high as 0.77 mg/g,with an increase of 63.8%,and the peroxide value was as high as 6.18 mg/g,with an increase of 43.7%.As for squalene,it decreased in varying degrees with heating time and storage *** in macadamia oil cooked at 300℃and stored under natural light were lower than those heated by microwave and stored at 45℃constant temperature,respectively,and decreased rapidly with the increase of cooking and light time,with the reduction ranges of 38.6%and28.4%respectively;Stigmasterol was not detected in macadamia *** in macadamia oil the content ofβ-sitosterol was 0.132 g/100 g,and the content did not change significantly in each *** the experimental treatment group,the content of fatty acids in macadamia oil had different *** treatment at 300℃for 20 minutes,the content of oleic acid decreased by 75.66%,the content of palmitic acid decreased by 75.28%,and thecontent of palmitic acid decreased by 74.12%.In conclusion,low temperature heating,microwave heating and storage away from light can better preserve the quality of macadamia oil,this study will provide a theoretical basisfor the rational utilization of macadamia oil as cooking oil.

关键词： Macadamia Oil Cooking Temperature storage time Quality

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of storage time on Main Quality Indicators of Cotton

引用

Asian Agricultural Research 2023年第9期15卷 44-46页

作者： Yuxi GU Jin WANG Gang YUAN Junwei JIA Wei WANG Jinying CHEN Sinograin Chengdu storage Research Institute Co. Ltd.Chengdu 610091China China Reserve Cotton Management Co. Ltd.Beijing 100000China

The quality indicators of cotton will change during *** the 5.89 million t of Xinjiang cotton from 2016 to 2021 as a sample,this paper analyzed the main fiber quality indicator data of warehouse-in and warehouse-out cotton for storage of 1.5,3.0,4.0,5.0,6.0,and 7.0 *** was found that the color grade of cotton decreased with the extension of storage *** cotton with storage time of 5.0 years mainly changed from white cotton grade 2 and white cotton grade 3 to light yellow stained cotton grade 1 and yellow stained cotton grade *** them,the increase of light yellow stained cotton grade 1 was the largest,and the change to yellow stained cotton grade 1 was the largest at the storage 6.0-7.0 *** addition,there were no significant changes in moisture regain,Micronaire value,upper half mean length,length uniformity index and fiber strength.

关键词： Cotton storage time Fiber quality Quality indicator Color grade

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Model for estimating the weight-loss ratio of damaged Korla fragrant pears

引用

International Journal of Agricultural and Biological Engineering 2024年第1期17卷 261-266页

作者： Yang Liu Yurong Tang Hong Zhang Hao Niu Haipeng Lan College of Mechanical and Electrical Engineering Tarim UniversityAlaer 843300XinjiangChina College of Water Resources and Architectural Engineering Tarim UniversityAlaer 843300XinjiangChina

To predict the weight-loss ratio of Korla fragrant pears effectively,improve commodity value and study the variation laws of the weight-loss ratio of damaged fragrant pears during storage,this study predicted the weight-loss ratio of fragrant pears by utilizing the generalized regression neural network(GRNN),support vector regression(SVR),partial least squares regression(PLSR)and error back propagation neural network(BPNN).The prediction performances of GRNN,SVR,PLSR and BPNN models were compared comprehensively,and the optimal model was *** addition,the optimal prediction model was *** results show that weight-loss ratio of fragrant pears increases gradually with the extension of storage *** storage,the weight-loss ratio of fragrant pears is positively related to the degree of *** trained GRNN,SVR,PLSR and BPNN models can be used to predict the weight-loss ratio of fragrant *** BPNN model is the most accurate in predicting the weight-loss ratio of damaged fragrant pears(R^(2)=0.9929;RMSE=0.2138).It has also been proved to have good predictive effect in production practice(R^(2)=0.9377,RMSE=0.7138).The research findings can provide references to predict the delivery quality and time of delivery of Korla fragrant pears.

关键词： Korla fragrant pears weight-loss ratio damages storage time

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Prediction method for nutritional quality of Korla pear during storage

引用

International Journal of Agricultural and Biological Engineering 2021年第3期14卷 247-254页

作者： Yang Liu Qiang Zhang Hao Niu Hong Zhang Haipeng Lan Yong Zeng Fuguo Jia College of Engineering Northeast Agricultural UniversityHarbin 150030China College of Mechanical and Electrical Engineering Tarim UniversityAlarXinjiang 843300China College of Engineering Huazhong Agricultural UniversityWuhan 430070China

It is difficult to control the quality of Korla pear with different degrees of maturity during ***,a method was proposed for predicting the effects of harvest maturity and cold storage time on the quality indices(soluble solid content(SSC)and Vitamin C(Vc)content)of Korla *** generalized regression neural network(GRNN)and adaptive neuro-fuzzy inference system(ANFIS)were employed to predict the quality changes of Korla fragrant pear fruit during *** results demonstrated that during cold storage the SSC in pears with 10%-70%harvest maturity showed continuous increases in the first 90 d of storage and then a slight decline thereafter,while that in pears with 80%and 90%harvest maturity exhibited slow decreases throughout the storage *** the extension of storage time,the Vc content of pears with 10%-90%harvest maturity showed continuous *** harvest maturity of Korla pear was extremely positively correlated with SSC and Vc content(pstorage *** time showed an extremely significant negative correlation with the Vc content(pstorage time showed a significant positive correlation with the SSC(pstorage time of Korla fragrant pear.

关键词： Korla fragrant pear harvest maturity storage time nutritional quality prediction method

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Effect of storage Solutions on Mineral Content of Enamel

引用

Materials Sciences and Applications 2013年第7期4卷 439-445页

作者： Asli Secilmis Erhan Dilber Nilgun Ozturk Fatma Gokmen Yilmaz Department of Prosthodontics Faculty of DentistryUniversity of GaziantepGaziantepTurkey Department of Prosthodontics Faculty of DentistrySifa UniversityİzmirTurkey Department of Prosthodontics Faculty of DentistryUniversity of SelcukKonyaTurkey Department of Soil Science Faculty of AgriculturalUniversity of SelcukKonyaTurkey

Purpose: This study evaluated the influence of different storage times and storage solutions on the mineral content of enamel. Methods: Ninety enamel slabs were randomly divided into 2 groups of 45: a 45-day group and a 90-day group. Each of these main groups was further subdivided into 9 experimental groups of 5 slabs, and each subgroup was stored in a different storage solution. The mean percentage weights of 5 elements (calcium, potassium, sodium, phosphorus, and magnesium) presented in each enamel slab was measured after storage using inductively coupled plasmaatomic emission spectrometry. Two-way analysis of variance (ANOVA) and Turkey’s honestly significant difference tests were used to analyze differences between the groups. Results: storage conditions significantly affected the levels of calcium, potassium, sodium, and phosphorus (p 0.05). storage procedures can significantly affect the calcium, potassium, sodium, and phosphorus contents of enamel.

关键词： storage Solution storage time Enamel ICP-AES Mineral Content

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Study on Biological Characteristics of Adelostemma gracillimum Seeds

引用

Agricultural Science & Technology 2016年第11期17卷 2589-2590,2594页

作者：郭承刚薛润光和寿星汤王外徐春莲云南省农业科学院高山经济植物研究所云南丽江674100

The effects of temperature, light, pH value and storage time on germina- tion of Adelostemma gracillimum seeds were studied through germination experi- ment. The results showed that A. gracillimum seeds had no property of post-matu- ration dormancy; the optimum germination temperature was 25 ~C; no significant difference was found in germination rate of A. gracillimum seeds between light and dark conditions; A. gracillimum seeds showed a wide adaptability to pH, Le., they could germinate in the pH range of 2-10, and showed a higher germination rate in the pH range of 6-8. The optimum storage time for A. gracillimum seeds was 12 months.

关键词： Adelostemma gracillimum Temperature Light pH value storage time Germination rate

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

贮存时间对三棵针中小檗碱含量的影响

引用

中国中药杂志 1987年第9期 21-22+64页

作者：董海山东省中医药学校莱阳

三棵针为小科小檗属植物的根,有清热、利湿、散瘀的功能,根和根皮中的小檗碱含量较高,药源丰富,是制药厂提取黄连素的重要原料(北京医学院、北京中医学院。中草药成分化学。第1版。北京:人民卫生出版社,1980:124)在实验中发现三棵针中... 详细信息

三棵针为小科小檗属植物的根,有清热、利湿、散瘀的功能,根和根皮中的小檗碱含量较高,药源丰富,是制药厂提取黄连素的重要原料(北京医学院、北京中医学院。中草药成分化学。第1版。北京:人民卫生出版社,1980:124)在实验中发现三棵针中小檗碱的提得率随着贮存时间的延长而显著降低,药材表面的色泽也有变化,并且光照有促进作用,用贮存三年后的三棵针作原料几乎提不出小檗碱。本实验对贮存不同时间的三棵针进行外观观察和小檗碱的含量测定,为三棵针的合理应用提供依据。

关键词： Berberis amurensis Rupr. Berberine storage time reduction rate

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：