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  1. Article ; Online: Determining the association between different living arrangements and depressive symptoms among over-65-year-old people

    Rixiang Xu / Yulian Liu / Tingyu Mu / Yaping Ye / Caiming Xu

    Frontiers in Public Health, Vol

    The moderating role of outdoor activities

    2022  Volume 10

    Abstract: BackgroundChina is presently facing the challenge of meeting enormous health demands because of its rapidly aging society. Enrolling older persons in eldercare institutions is a helpful alternative for relieving family caregivers and promoting healthy ... ...

    Abstract BackgroundChina is presently facing the challenge of meeting enormous health demands because of its rapidly aging society. Enrolling older persons in eldercare institutions is a helpful alternative for relieving family caregivers and promoting healthy aging. However, changes in the living environment may negatively affect the mental health of the elderly.ObjectiveTo explore the association between different living arrangements and depressive symptoms among over-65-year-old people in China and the moderating role of outdoor activities.MethodThe 2018 wave of the Chinese Longitudinal Healthy Longevity Survey (CLHLS) used a mixed sampling method to collect the health and demographic information of 15,874 older adults over 65 years from 23 provinces in China. After considering this study's inclusion and exclusion criteria, the final sample comprised 12,200 participants. The participants' risk of depressive symptoms was assessed using the 10-item Center for Epidemiologic Studies Depression Scale (CESD-10). The potential association between the two elements was tested using a regression model.ResultThis study's findings suggested a significant relationship between depressive symptoms and living arrangements (P < 0.001). Participants living alone and those living in eldercare institutions had 1.26-times (95%CI: 1.10–1.44) and 1.39-times (95%CI: 1.09–1.77) higher risks of depressive symptoms, respectively, than those living with household members. Outdoor activities play a moderating role between different living arrangements and depressive symptoms. Among participants who engaged in outdoor activities, no significant difference was observed in the risk of depressive symptoms between those living in eldercare institutions and those living with household members (adjusted odds ratio = 1.15, 95%CI = 0.81–1.64, P = 0.426).ConclusionThe high risk of depressive symptoms among older Chinese people living alone or in eldercare institutions requires considerable attention. The evidence from this study suggests that older ...
    Keywords depression ; living arrangement ; eldercare institutions ; aging population ; outdoor activities ; Public aspects of medicine ; RA1-1270
    Subject code 150
    Language English
    Publishing date 2022-08-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Evaluation of the impact of the COVID-19 pandemic on health service utilization in China

    Rixiang Xu / Lang Wu / Yulian Liu / Yaping Ye / Tingyu Mu / Caiming Xu / Huiling Yuan

    Frontiers in Public Health, Vol

    A study using auto-regressive integrated moving average model

    2023  Volume 11

    Abstract: BackgroundThe outbreak of COVID-19 in early 2020 presented a major challenge to the healthcare system in China. This study aimed to quantitatively evaluate the impact of COVID-19 on health services utilization in China in 2020.MethodsHealth service- ... ...

    Abstract BackgroundThe outbreak of COVID-19 in early 2020 presented a major challenge to the healthcare system in China. This study aimed to quantitatively evaluate the impact of COVID-19 on health services utilization in China in 2020.MethodsHealth service-related data for this study were extracted from the China Health Statistical Yearbook. The Auto-Regressive Integrated Moving Average model (ARIMA) was used to forecast the data for the year 2020 based on trends observed between 2010 and 2019. The differences between the actual 2020 values reported in the statistical yearbook and the forecast values from the ARIMA model were used to assess the impact of COVID-19 on health services utilization.ResultsIn 2020, the number of admissions and outpatient visits in China declined by 17.74 and 14.37%, respectively, compared to the ARIMA model’s forecast values. Notably, public hospitals experienced the largest decrease in outpatient visits and admissions, of 18.55 and 19.64%, respectively. Among all departments, the pediatrics department had the greatest decrease in outpatient visits (35.15%). Regarding geographical distribution, Beijing and Heilongjiang were the regions most affected by the decline in outpatient visits (29.96%) and admissions (43.20%) respectively.ConclusionThe study’s findings suggest that during the first year of the COVID-19 pandemic, one in seven outpatient services and one in six admissions were affected in China. Therefore, there is an urgent need to establish a green channel for seeking medical treatment without spatial and institutional barriers during epidemic prevention and control periods.
    Keywords public emergencies ; emergency management ; health services access ; forecast model ; health policy ; Public aspects of medicine ; RA1-1270
    Subject code 360
    Language English
    Publishing date 2023-04-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Physical–Chemical Composition and Quality Related Changes in “Ruaner” Pear ( Pyrus ussuriensis ) During Freezing–Thawing Period

    Yulian Liu / Yuxia Wu / Fei Che / Zhimin Zhang / Baihong Chen

    Molecules, Vol 24, Iss 14, p

    2019  Volume 2611

    Abstract: Ruaner” pear ( Pyrus ussuriensis Maxim.) is a fruit crop that is frequently served frozen in China. It is a typical postharvest ripening fruit that needs to ripen after harvest before it can be eaten, and freezing−thawing is one way that pears are ... ...

    Abstract “Ruaner” pear ( Pyrus ussuriensis Maxim.) is a fruit crop that is frequently served frozen in China. It is a typical postharvest ripening fruit that needs to ripen after harvest before it can be eaten, and freezing−thawing is one way that pears are treated during postharvest ripening. In order to study the physical−chemical composition and quality-related changes in “Ruaner” pears that result the freezing−thawing period, “Ruaner” pears were kept in a freezer (−20 °C) for 7 days, after which they were transferred to room temperature for thawing. The color of the peel of the “Ruaner” pears changed from yellow-green to yellow and then brown. The chlorophyll content and titratable acidity (TA) decreased significantly throughout 0−12 h period. The carotenoid content tended to rise and then decrease, peaking at 3 h after thawing (HAT), while the soluble solids content (SSC), firmness, total phenolic content, and total flavonoid content all generally decreased. The composition of soluble sugars and organic acids was examined in “Ruaner” pears, and the major soluble sugars were fructose and glucose, with citric acid being the most abundant organic acid. The data suggest that freezing−thawing significantly changes firmness, water content, SSC, and TA in “Ruaner” pears. At 3−4 HAT, “Ruaner” pears have moderate hardness, high water content, low acid content, and higher total phenolic, total flavonoid, and soluble solids content. Therefore, 3−4 HAT is the best time for pears in terms of both table and processing quality.
    Keywords freezing–thawing ; quality ; physical–chemical composition ; “Ruaner” pear ; Organic chemistry ; QD241-441
    Language English
    Publishing date 2019-07-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Long-term investigation of environmental radioactivity levels and public health around the Qinshan Nuclear Power Plant, China

    Yiyao Cao / Junping Lin / Kangle Zhai / Wei Jiang / Hua Zou / Hong Ren / Peng Wang / Xiangjing Gao / Meibian Zhang / Shunfei Yu / Yaoxian Zhao / Zhiqiang Xuan / Dongxia Zhang / Yulian Liu / Xiaoming Lou

    Scientific Reports, Vol 12, Iss 1, Pp 1-

    2022  Volume 12

    Abstract: Abstract To evaluate the impact of the Qinshan Nuclear Power Plant (Qinshan NPP) in normal operation on the surrounding environment and population, the radioactivity levels of drinking water and the ambient environment, as well as the residents’ cancer ... ...

    Abstract Abstract To evaluate the impact of the Qinshan Nuclear Power Plant (Qinshan NPP) in normal operation on the surrounding environment and population, the radioactivity levels of drinking water and the ambient environment, as well as the residents’ cancer incidence, were continuously monitored for a period of 9 years (2012–2020). All of the gross α and β radioactivity concentrations in drinking water were less than the WHO recommended values (0.5 Bq/L for gross α and 1 Bq/L for gross β). The results of ambient environment accumulated dose monitored by thermoluminescent dosimeters (TLDs) indicated that the ambient environment radioactive level around the Qinshan NPP is consistently at natural background radiation levels. The age-dependent annual effective doses due to the ingestion of tap water or exposure to the outdoor ambient environment are lower than the reference dose of 0.1 mSv/year. The corresponding excess risks are at relatively low levels. Thus, the consumption of drinking water and outdoor activities are not expected to give rise to any detectable adverse effects on the health of the public around the Qinshan NPP. For all cancers combined, the age-standardized incidence rate by the Chinese 2000 standard population of the inhabitants living around Qinshan NPP is consistent with that of Zhejiang Province as a whole. Based on current radiation risk estimates, radiation exposure is not a plausible explanation for any excess cancers observed in the vicinity of the Qinshan NPP.
    Keywords Medicine ; R ; Science ; Q
    Subject code 333
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: A remarkable climate warming hiatus over Northeast China since 1998

    Sun, Xiubao / Guoyu Ren / Panfeng Zhang / Xiaoying Xue / Yihe Fang / Yulian Liu / Yuyu Ren

    Theoretical and applied climatology. 2018 July, v. 133, no. 1-2

    2018  

    Abstract: Characteristics and causes of global warming hiatus (GWH) phenomenon have received much attention in recent years. Monthly mean data of land surface air maximum temperature (Tmax), minimum temperature (Tmin), and mean temperature (Tmean) of 118 national ... ...

    Abstract Characteristics and causes of global warming hiatus (GWH) phenomenon have received much attention in recent years. Monthly mean data of land surface air maximum temperature (Tmax), minimum temperature (Tmin), and mean temperature (Tmean) of 118 national stations since 1951 in Northeast China are used in this paper to analyze the changes of land surface air temperature in recent 64 years with an emphasis on the GWH period. The results show that (1) from 1951 to 2014, the warming trends of Tmax, Tmin, and Tmean are 0.20, 0.42, and 0.34 °C/decade respectively for the whole area, with the warming rate of Tmin about two times of Tmax, and the upward trend of Tmean obviously higher than mainland China and global averages; (2) in the period 1998–2014, the annual mean temperature consistently exhibits a cooling phenomenon in Northeast China, and the trends of Tmax, Tmin, and Tmean are −0.36, −0.14, and −0.28 °C/decade respectively; (3) in the GWH period, seasonal mean cooling mainly occurs in northern winter (DJF) and spring (MAM), but northern summer (JJA) and autumn (SON) still experience a warming, implying that the annual mean temperature decrease is controlled by the remarkable cooling of winter and spring; (4) compared to the global and mainland China averages, the hiatus phenomenon is more evident in Northeast China, and the cooling trends are more obvious in the cold season; (5) the Northeast China cooling trend occurs under the circulation background of the negative phase Arctic Oscillation (AO), and it is also closely related to strengthening of the Siberia High (SH) and the East Asian Trough (EAT), and the stronger East Asian winter monsoon (EAWM) over the GWH period.
    Keywords air ; air temperature ; autumn ; cold season ; cooling ; global warming ; monsoon season ; spring ; summer ; winter ; Arctic region ; China ; Siberia
    Language English
    Dates of publication 2018-07
    Size p. 579-594.
    Publishing place Springer Vienna
    Document type Article
    ZDB-ID 1463177-5
    ISSN 1434-4483 ; 0177-798X
    ISSN (online) 1434-4483
    ISSN 0177-798X
    DOI 10.1007/s00704-017-2205-7
    Database NAL-Catalogue (AGRICOLA)

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  6. Article ; Online: The Changes in Color, Soluble Sugars, Organic Acids, Anthocyanins and Aroma Components in “Starkrimson” during the Ripening Period in China

    Yulian Liu / Nianlai Chen / Zonghuan Ma / Fei Che / Juan Mao / Baihong Chen

    Molecules, Vol 21, Iss 6, p

    2016  Volume 812

    Abstract: Starkrimson” is a traditional apple cultivar that was developed a long time ago and was widely cultivated in the arid region of the northern Wei River of China. However, little information regarding the quality characteristics of “Starkrimson” fruit has ...

    Abstract “Starkrimson” is a traditional apple cultivar that was developed a long time ago and was widely cultivated in the arid region of the northern Wei River of China. However, little information regarding the quality characteristics of “Starkrimson” fruit has been reported in this area. To elucidate these characteristics, the color, soluble sugars, organic acids, anthocyanins and aroma components were measured during the ripening period through the use of high performance liquid chromatography (HPLC) and gas chromatography-mass spectrometry (GC-MS). The results indicated that the changes in anthocyanin contents took place later than the changes in the Commission International Eclairage (CIE) parameters. Meanwhile, cyanidin 3-galactoside (cy3-gal), fructose, sucrose, glucose and malic acid were the primary organic compounds, and 1-butanol-2-methyl-acetate, 2-hexenal and 1-hexanol were the most abundant aroma components in the skin. Furthermore, rapidly changing soluble sugars and organic acid synchronization took place in the early ripening period, while rapidly changing aroma components occurred later, on the basis of fresh weight. This result suggested that the production of aroma components might be a useful index of apple maturity.
    Keywords apple ; color ; anthocyanin ; soluble sugar ; organic acid ; Organic chemistry ; QD241-441
    Subject code 660
    Language English
    Publishing date 2016-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article: Anthocyanin accumulation and related gene family expression in the skin of dark-grown red and non-red apples (Malus domestica Borkh.) in response to sunlight

    Meng, Rui / Dong Qu / Huijuan Yang / Xingyun Shi / Yulian Liu / Zhengyang Zhao / Ziyi Gao

    Scientia horticulturae. 2015 June 25, v. 189

    2015  

    Abstract: We investigated anthocyanin concentrations by HPLC (high-performance liquid chromatography) and expression of MYB, bHLH and UFGT gene families by quantitative real time PCR in apple skin of red cultivar ‘Starkrimson’ and non-red cultivars ‘Golden ... ...

    Abstract We investigated anthocyanin concentrations by HPLC (high-performance liquid chromatography) and expression of MYB, bHLH and UFGT gene families by quantitative real time PCR in apple skin of red cultivar ‘Starkrimson’ and non-red cultivars ‘Golden Delicious’ and ‘Granny Smith’ in response to light. Young fruits were bagged at 40 DAFB (days after full bloom), and fruits of ‘Golden Delicious’ and ‘Starkrimon’ were debagged at 120 DAFB, while fruits of ‘Granny Smith’ at 160 DAFB. In bagged fruit, anthocyanin synthesis and related genes expression were both depressed, whereas these genes expression was enhanced by light, accompanied by anthocyanin accumulation in apple skin. ‘Starkrimson’ and ‘Granny Smith’ accumulated relatively higher anthocyanin concentrations than ‘Golden Deliicous’. Transcript levels of most selected regulatory genes, including MdMYB1-1, MdMYB1-2, MdbHLH3-1 and MdbHLH33-1, were up-regulated in apple skin of all the three cultivars, although transcript levels of these genes in ‘Starkrimson’ and ‘Granny Smith’ increased before outer layered bag removal, and increased after outer layered in ‘Golden Delicious’. However, UFGT family showed differences between red and non-red cultivars. MdUFGT2 was up-regulated only in non-red cultivars, while MdUFGT4 was up-regulated only in red skin cultivar, suggesting that UFGT is also important for anthocyanin accumulation in apple skin of different colors. Our results indicated that anthocyanin regulation in different colored apple cultivars were accomplished through different mechanisms, which will be valuable for further research of anthocyanin regulation in apple skin and for apple breeding programs that take genetic tools to improve the consistency of color in apples.
    Keywords anthocyanins ; apples ; breeding ; color ; cultivars ; flowering ; fruits ; gene expression ; gene expression regulation ; high performance liquid chromatography ; Malus domestica ; quantitative polymerase chain reaction ; regulator genes
    Language English
    Dates of publication 2015-0625
    Size p. 66-73.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 185557-8
    ISSN 0304-4238
    ISSN 0304-4238
    DOI 10.1016/j.scienta.2015.03.046
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Fruit Coloration and Anthocyanin Biosynthesis after Bag Removal in Non-Red and Red Apples (Malus × domestica Borkh.)

    Yulian Liu / Fei Che / Lixin Wang / Rui Meng / Xiaojun Zhang / Zhengyang Zhao

    Molecules, Vol 18, Iss 2, Pp 1549-

    2013  Volume 1563

    Abstract: In the present study, evolution of apple color (L* and a/b), the accumulation of anthocyanins and the activity of the related enzymes, phenylalanine ammonia-lyase (PAL), chalcone isomerase (CHI), dihydroflavonol4-reductase (DFR) and UDP-Glucose: ... ...

    Abstract In the present study, evolution of apple color (L* and a/b), the accumulation of anthocyanins and the activity of the related enzymes, phenylalanine ammonia-lyase (PAL), chalcone isomerase (CHI), dihydroflavonol4-reductase (DFR) and UDP-Glucose: flavonoid-3-O-galactosyl transferase (UFGT), were investigated in bagged non-red apple cultivars (‘Granny Smith’ and ‘Golden Delicious’) and red apple cultivars (‘Starkrimon’ and ‘Pink Lady’). Young fruits were bagged 40–45 days after flowering (DAF), and fruits of ‘Golden Delicious’ and ‘Starkrimon’ were uncovered and exposed to light 120 DAF, while those of ‘Granny Smith’ and ‘Pink Lady’ were exposed for 160 DAF. Results showed that cyanidin 3-galactoside (cy3-gal) was the most abundant anthocyanin in both non-red and red cultivars. Level of anthocyanins was higher in ‘Granny Smith’ than in ‘Golden Delicious’, indicating that red color was easier to develop in green cultivar ‘Granny Smith’ than in yellow cultivar ‘Golden Delicious’ after bag removal. The cy3-gal accumulation of non-red cultivars tested was not significantly correlated with PAL, CHI and DFR activity, but was significantly correlated with UFGT activity. During the reddening of non-red apples, UFGT may be the more important factor in the anthocyanin biosynthesis.
    Keywords anthocyanins ; fruit color ; PAL ; CHI ; DFR ; UFGT ; Organic chemistry ; QD241-441
    Language English
    Publishing date 2013-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Fruit Coloration and Anthocyanin Biosynthesis after Bag Removal in Non-Red and Red Apples (Malus × domestica Borkh.)

    Yulian Liu / Fei Che / Lixin Wang / Rui Meng / Xiaojun Zhang / Zhengyang Zhao

    Molecules, Vol 18, Iss 2, Pp 1549-

    2013  Volume 1563

    Abstract: In the present study, evolution of apple color (L* and a/b), the accumulation of anthocyanins and the activity of the related enzymes, phenylalanine ammonia-lyase (PAL), chalcone isomerase (CHI), dihydroflavonol4-reductase (DFR) and UDP-Glucose: ... ...

    Abstract In the present study, evolution of apple color (L* and a/b), the accumulation of anthocyanins and the activity of the related enzymes, phenylalanine ammonia-lyase (PAL), chalcone isomerase (CHI), dihydroflavonol4-reductase (DFR) and UDP-Glucose: flavonoid-3-O-galactosyl transferase (UFGT), were investigated in bagged non-red apple cultivars (‘Granny Smith’ and ‘Golden Delicious’) and red apple cultivars (‘Starkrimon’ and ‘Pink Lady’). Young fruits were bagged 40–45 days after flowering (DAF), and fruits of ‘Golden Delicious’ and ‘Starkrimon’ were uncovered and exposed to light 120 DAF, while those of ‘Granny Smith’ and ‘Pink Lady’ were exposed for 160 DAF. Results showed that cyanidin 3-galactoside (cy3-gal) was the most abundant anthocyanin in both non-red and red cultivars. Level of anthocyanins was higher in ‘Granny Smith’ than in ‘Golden Delicious’, indicating that red color was easier to develop in green cultivar ‘Granny Smith’ than in yellow cultivar ‘Golden Delicious’ after bag removal. The cy3-gal accumulation of non-red cultivars tested was not significantly correlated with PAL, CHI and DFR activity, but was significantly correlated with UFGT activity. During the reddening of non-red apples, UFGT may be the more important factor in the anthocyanin biosynthesis.
    Keywords anthocyanins ; fruit color ; PAL ; CHI ; DFR ; UFGT ; Organic chemistry ; QD241-441
    Subject code 571
    Language English
    Publishing date 2013-01-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Genetic Diversity of Androdioecious Osmanthus fragrans (Oleaceae) Cultivars Using Microsatellite Markers

    Yifan Duan / Xianrong Wang / Qibai Xiang / Lili Liang / Xuexia Li / Yulian Liu / Meng Li

    Applications in Plant Sciences, Vol 1, Iss 6, p

    2013  Volume 1200092

    Abstract: Premise of the study: For cultivar classification, identification, and genetic improvement, microsatellite markers were developed to analyze the genetic diversity of androdioecious Osmanthus fragrans cultivars. Methods and Results: Fifteen microsatellite ...

    Abstract Premise of the study: For cultivar classification, identification, and genetic improvement, microsatellite markers were developed to analyze the genetic diversity of androdioecious Osmanthus fragrans cultivars. Methods and Results: Fifteen microsatellite markers were developed from sequences downloaded from the National Center for Biotechnology Information, which included two with null alleles. These primers were screened on 62 typical androdioecious O. fragrans cultivars belonging to four groups (Asiaticus, Albus, Luteus, and Aurantiacus). The number of alleles ranged from two to six, with a mean of 3.7 per locus. The observed and expected heterozygosities ranged from 0.1000 to 0.9091 and from 0.1287 to 0.9167, respectively. Results from structure analyses indicated that Asiaticus and Albus were genetically mixed, and Luteus and Aurantiacus were partially genetically differentiated. Conclusions: These markers will be useful for genetic study of androdioecious O. fragrans cultivars and facilitate cultivar classification, particularly for the cultivar groups Luteus and Aurantiacus.
    Keywords androdioecy ; genetic diversity ; microsatellite markers ; Oleaceae ; Osmanthus fragrans ; Biology (General) ; QH301-705.5 ; Botany ; QK1-989
    Subject code 590
    Language English
    Publishing date 2013-06-01T00:00:00Z
    Publisher Wiley
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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