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Wang DS, Zhang HZ, Wu SH, Qian ZM, McMillin SE, Bingheim E, Tan WH, Huang WZ, Zhou PE, Liu RQ, Hu LW, Chen GB, Yang BY, Zeng XW, Hu QS, Lin LZ, Dong GH. Association Between Home Renovation and Sleeping Problems Among Children Aged 6-18 Years: A Nationwide Survey in China. Epidemiology 2024; 35:408-417. [PMID: 38261409 DOI: 10.1097/ede.0000000000001719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
BACKGROUND Although the indoor environment has been proposed to be associated with childhood sleep health, to our knowledge no study has investigated the association between home renovation and childhood sleep problems. METHODS The study included 186,470 children aged 6-18 years from the National Chinese Children Health Study (2012-2018). We measured childhood sleeping problems via the Chinese version of the Sleep Disturbance Scale for Children (C-SDSC). Information on home renovation exposure within the recent 2 years was collected via parent report. We estimated associations between home renovation and various sleeping problems, defined using both continuous and categorized (binary) C-SDSC t-scores, using generalized mixed models. We fitted models with city as a random effect variable, and other covariates as fixed effects. RESULTS Out of the overall participants, 89,732 (48%) were exposed to recent home renovations. Compared to the unexposed group, children exposed to home renovations had higher odds of total sleep disorder (odd ratios [OR] = 1.3; 95% confidence interval [CI] = 1.2, 1.4). Associations varied when we considered different types of home renovation materials. Children exposed to multiple types of home renovation had higher odds of sleeping problems. We observed similar findings when considering continuous C-SDSC t-scores. Additionally, sex and age of children modified the associations of home renovation exposure with some of the sleeping problem subtypes. CONCLUSIONS We found that home renovation was associated with higher odds of having sleeping problems and that they varied when considering the type of renovation, cumulative exposure, sex, and age differences.
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Affiliation(s)
- Dao-Sen Wang
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Hong-Zhi Zhang
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Si-Han Wu
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Zheng-Min Qian
- Department of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis University, Saint Louis, MO
| | | | - Elizabeth Bingheim
- Department of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis University, Saint Louis, MO
| | - Wei-Hong Tan
- Department of Reproductive Medicine and Genetics Center, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Wen-Zhong Huang
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Pei-En Zhou
- Department of Public Health & Primary Care, University of Cambridge, Cambridge CB2 1TN, UK
| | - Ru-Qing Liu
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Li-Wen Hu
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Gong-Bo Chen
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Bo-Yi Yang
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Wen Zeng
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Qian-Sheng Hu
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Li-Zi Lin
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Guang-Hui Dong
- From the Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
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Liu RQ, Bloom MS, Wu QZ, He ZZ, Qian Z, Stamatakis KA, Liu E, Vaughn M, Lawrence WR, Yang M, Lu T, Hu QS, Dong GH. Association between depressive symptoms and poor sleep quality among Han and Manchu ethnicities in a large, rural, Chinese population. PLoS One 2019; 14:e0226562. [PMID: 31856188 PMCID: PMC6922383 DOI: 10.1371/journal.pone.0226562] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 11/28/2019] [Indexed: 02/07/2023] Open
Abstract
Objectives To estimate the relationship between sleep quality and depression, among Han and Manchu ethnicities, in a rural Chinese population. Methods A sample of 8,888 adults was selected using a multistage cluster and random sampling method. Sleep quality was evaluated using the Pittsburgh Sleep Quality Index (PSQI). Depressive symptoms were assessed via the Center for Epidemiological Survey, Depression Scale (CES-D). Logistic regression was conducted to assess associations between sleep quality and depression. Results The prevalence of poor sleep quality and depression in the Manchus (20.74% and 22.65%) was significantly lower than that in the Hans (29.57% and 26.25%), respectively. Depressive participants had higher odds ratios of global and all sub PSQI elements than non-depressive participants, both among the Hans and the Manchus. Additive interactions were identified between depressive symptoms and ethnicity with global and four sub-PSQI elements, including subjective sleep quality, sleep disturbance, use of sleep medication and daytime dysfunction. Conclusions The findings revealed that the prevalence of poor sleep quality and depression among the Hans was greater than among the Manchus. Depression was associated with higher odds of poor sleep quality.
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Affiliation(s)
- Ru-Qing Liu
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Michael S. Bloom
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
- Department of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, New York, United States of America
- Department of Epidemiology and Biostatistics, School of Public Health, University at Albany, State University of New York, Rensselaer, New York, United States of America
| | - Qi-Zhen Wu
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhi-Zhou He
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Zhengmin Qian
- Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri, United States of America
| | - Katherine A. Stamatakis
- Department of Epidemiology, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri, United States of America
| | - Echu Liu
- Department of Health Management & Policy, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri, United States of America
| | - Michael Vaughn
- School of Social Work, College for Public Health and Social Justice, Saint Louis University, Saint Louis, Missouri, United States of America
| | - Wayne R. Lawrence
- Department of Epidemiology and Biostatistics, School of Public Health, University at Albany, State University of New York, Rensselaer, New York, United States of America
| | - Mingan Yang
- Department of Biostatistics and Epidemiology, Graduate School of Public Health, San Diego State University, San Diego, California, United States of America
| | - Tao Lu
- Department of Mathematics and Statistics, University of Nevada, Reno, Nevada, United States of America
| | - Qian-Sheng Hu
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
- * E-mail: (GD); (QH)
| | - Guang-Hui Dong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
- * E-mail: (GD); (QH)
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Zhong LX, Li XN, Yang GY, Zhang X, Li WX, Zhang QQ, Pan HX, Zhang HH, Zhou MY, Wang YD, Zhang WW, Hu QS, Zhu W, Zhang B. Circadian misalignment alters insulin sensitivity during the light phase and shifts glucose tolerance rhythms in female mice. PLoS One 2019; 14:e0225813. [PMID: 31851682 PMCID: PMC6919582 DOI: 10.1371/journal.pone.0225813] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Accepted: 11/13/2019] [Indexed: 12/18/2022] Open
Abstract
Shift work and jet lag, characterized by circadian misalignment, can disrupt several physiological activities, but whether they affect the rhythm of glucose uptake and insulin sensitivity remain unclear. In the present study, female C57BL/6J mice were maintained for four weeks under the condition of 8-hour phase advance and delay every 3–4 days to mimic shift work. Intraperitoneal glucose tolerance test (IPGTT) and intraperitoneal insulin tolerance test (IPITT) were performed repeatedly at Zeitgeber time (ZT) 0, ZT6, ZT12, and ZT18. Glucose-stimulated insulin secretion (GSIS) test was performed at ZT6. We found that the average level of daily glucose tolerance did not decrease but the phase of glucose tolerance advanced by 2.27 hours and the amplitude attenuated by 20.4% in shift work mice. At ZT6, IPITT showed blood glucose at 30 min after insulin injection decreased faster in shift work mice (−3.50±0.74mmol/L, −61.58±7.89%) than that in control mice (−2.11±1.10mmol/L, −33.72±17.24%), but IPGTT and GSIS test showed no significant difference between the two groups. Food intake monitor showed that the feeding time of shift work mice continued to advance. Restricting feed to a fixed 12-hour period alleviated the increase of insulin sensitivity induced by shift-work. We also observed that an increase of blood glucose and liver glycogen at ZT0, as well as a phase advance of liver clock genes and some glucose metabolism-related genes such as forkhead box O1 (Foxo1) and peroxisome proliferator activated receptor alpha (Pparα) in shift work mice. Our results showed that light change-simulated shift work altered insulin sensitivity during the light phase and shifted glucose tolerance rhythms in female mice, suggesting a causal association between long-term shift work and type 2 diabetes.
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Affiliation(s)
- Li-Xin Zhong
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China.,Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China.,Food Safety and Health Research Center, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiao-Na Li
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Guang-Yu Yang
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Xia Zhang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China.,Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Wen-Xue Li
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Qian-Qian Zhang
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Huan-Xin Pan
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China.,Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Hui-Hong Zhang
- Food Safety and Health Research Center, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Meng-Ya Zhou
- Food Safety and Health Research Center, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Yi-Ding Wang
- Food Safety and Health Research Center, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
| | - Wei-Wei Zhang
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Qian-Sheng Hu
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wei Zhu
- Department of Toxicology, Guangzhou Center for Disease Control and Prevention, Guangzhou, Guangdong, China
| | - Bo Zhang
- Food Safety and Health Research Center, School of Public Health, Southern Medical University, Guangzhou, Guangdong, China
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Hu LW, Gurram N, Bloom MS, Qian Z, Howard SW, Iwelunmor J, Zeeshan M, Lin S, Yang BY, Zeng XW, Liu KK, Hu QS, Dong GH. Impact on lung function among children exposed to home new surface materials: The seven Northeastern Cities Study in China. Indoor Air 2019; 29:477-486. [PMID: 30710375 DOI: 10.1111/ina.12541] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 01/08/2019] [Accepted: 01/29/2019] [Indexed: 06/09/2023]
Abstract
We conducted a cross-sectional study to investigate the associations between recent home renovation exposure and lung function in children. We randomly recruited 7326 school children residing in 24 districts from seven cities in northeastern China. We collected information about home renovations from parents using a questionnaire and lung function measurements from children using spirometer recordings gathered by trained professionals and expressed as the forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), maximal mid-expiratory flow (MMEF), and peak expiratory flow (PEF). We identified higher odds of diminished lung function among these with home renovation in the previous 2 years compared to those without home renovation in the previous 2 years, for FVC (odds ratios [ORs] = 1.84 [95%CI: 1.58, 2.15]; FEV1: ORs = 2.82 [95%CI: 2.36, 3.36]; PEF: ORs = 1.51 [95%CI: 1.24, 1.83]; and MMEF: ORs = 1.90 [95%CI: 1.60, 2.24]). The associations were stronger among children exposed to new polyvinyl chloride (PVC) flooring compared to children exposed to other surface materials. Our results were consistent throughout the analysis of each type of renovation materials. In conclusion, recent home renovation exposure was associated with poor lung function among children. Strategies to protect home owners and their families from respiratory hazards during and after renovation are required.
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Affiliation(s)
- Li-Wen Hu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Namratha Gurram
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
- Departments of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, New York
| | - Michael S Bloom
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
- Departments of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, New York
- Departments of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, New York
| | - Zhengmin Qian
- Department of Epidemiology and Biostatistics, College for Public Health & Social Justice, Saint Louis University, Saint Louis, Missouri
| | - Steven W Howard
- Department of Health Management & Policy, College for Public Health & Social Justice, Saint Louis University, Saint Louis, Missouri
| | - Juilet Iwelunmor
- Department of Behavioral Science and Health Education, College for Public Health & Social Justice, Saint Louis University, Saint Louis, Missouri
| | - Mohammed Zeeshan
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Shao Lin
- Departments of Epidemiology and Biostatistics, University at Albany, State University of New York, Rensselaer, New York
- Departments of Environmental Health Sciences, University at Albany, State University of New York, Rensselaer, New York
| | - Bo-Yi Yang
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Wen Zeng
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Kang-Kang Liu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Qian-Sheng Hu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Guang-Hui Dong
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
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Sun JB, Li Y, Cai YF, Huang Y, Liu S, Yeung PK, Deng MZ, Sun GS, Zilundu PL, Hu QS, An RX, Zhou LH, Wang LX, Cheng X. Scutellarin protects oxygen/glucose-deprived astrocytes and reduces focal cerebral ischemic injury. Neural Regen Res 2018; 13:1396-1407. [PMID: 30106052 PMCID: PMC6108207 DOI: 10.4103/1673-5374.235293] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Scutellarin, a bioactive flavone isolated from Scutellaria baicalensis, has anti-inflammatory, anti-neurotoxic, anti-apoptotic and anti-oxidative effects and has been used to treat cardiovascular and cerebrovascular diseases in China. However, the mechanisms by which scutellarin mediates neuroprotection in cerebral ischemia remain unclear. The interaction between scutellarin and nicotinamide adenine dinucleotide phosphate oxidase 2 (NOX2) was assessed by molecular docking study, which showed that scutellarin selectively binds to NOX2 with high affinity. Cultures of primary astrocytes isolated from the cerebral cortex of neonatal Sprague-Dawley rats were pretreated with 2, 10 or 50 μM scutellarin for 30 minutes. The astrocytes were then subjected to oxygen/glucose deprivation by incubation for 2 hours in glucose-free Dulbecco's modified Eagle's medium in a 95% N2/5% CO2 incubator, followed by simulated reperfusion for 22 hours. Cell viability was assessed by cell counting kit-8 assay. Expression levels of NOX2, connexin 43 and caspase-3 were assessed by western blot assay. Reactive oxygen species were measured spectrophotometrically. Pretreatment with 10 or 50 μM scutellarin substantially increased viability, reduced the expression of NOX2 and caspase-3, increased the expression of connexin 43, and diminished the levels of reactive oxygen species in astrocytes subjected to ischemia-reperfusion. We also assessed the effects of scutellarin in vivo in the rat transient middle cerebral artery occlusion model of cerebral ischemia-reperfusion injury. Rats were given intraperitoneal injection of 100 mg/kg scutellarin 2 hours before surgery. The Bederson scale was used to assess neurological deficit, and 2,3,5-triphenyltetrazolium chloride staining was used to measure infarct size. Western blot assay was used to assess expression of NOX2 and connexin 43 in brain tissue. Enzyme-linked immunosorbent assay was used to detect 8-hydroxydeoxyguanosine (8-OHdG), 4-hydroxy-2-nonenal (4-HNE) and 3-nitrotyrosin (3-NT) in brain tissue. Immunofluorescence double staining was used to determine the co-expression of caspase-3 and NeuN. Pretreatment with scutellarin improved the neurological function of rats with focal cerebral ischemia, reduced infarct size, diminished the expression of NOX2, reduced levels of 8-OHdG, 4-HNE and 3-NT, and reduced the number of cells co-expressing caspase-3 and NeuN in the injured brain tissue. Furthermore, we examined the effect of the NOX2 inhibitor apocynin. Apocynin substantially increased connexin 43 expression in vivo and in vitro. Collectively, our findings suggest that scutellarin protects against ischemic injury in vitro and in vivo by downregulating NOX2, upregulating connexin 43, decreasing oxidative damage, and reducing apoptotic cell death.
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Affiliation(s)
- Jing-Bo Sun
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine; Guangdong Provincial Academy of Chinese Medical Sciences; Guangdong Provincial Chinese Emergency Key Laboratory, Guangzhou, Guangdong Province, China
| | - Yan Li
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine; Guangdong Provincial Academy of Chinese Medical Sciences; Guangdong Provincial Chinese Emergency Key Laboratory, Guangzhou, Guangdong Province, China
| | - Ye-Feng Cai
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine; Guangdong Provincial Academy of Chinese Medical Sciences; Guangdong Provincial Chinese Emergency Key Laboratory, Guangzhou, Guangdong Province, China
| | - Yan Huang
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine; Guangdong Provincial Academy of Chinese Medical Sciences; Guangdong Provincial Chinese Emergency Key Laboratory, Guangzhou, Guangdong Province, China
| | - Shu Liu
- Department of Anatomy, An Hui Medical University, Hefei, Anhui Province, China
| | - Patrick Kk Yeung
- Department of Biomedical Sciences, The University of Hong Kong, Hong Kong Special Administrative Region, China
| | - Min-Zhen Deng
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine; Guangdong Provincial Academy of Chinese Medical Sciences; Guangdong Provincial Chinese Emergency Key Laboratory, Guangzhou, Guangdong Province, China
| | - Guang-Shun Sun
- Department of Preventive Medicine, School of Public Health, Zhong Shan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Prince Lm Zilundu
- Guangzhou Department of Anatomy, Zhong Shan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Qian-Sheng Hu
- Department of Preventive Medicine, School of Public Health, Zhong Shan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Rui-Xin An
- Guangzhou Department of Anatomy, Zhong Shan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Li-Hua Zhou
- Guangzhou Department of Anatomy, Zhong Shan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong Province, China
| | - Li-Xin Wang
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine; Guangdong Provincial Academy of Chinese Medical Sciences; Guangdong Provincial Chinese Emergency Key Laboratory, Guangzhou, Guangdong Province, China
| | - Xiao Cheng
- Department of Neurology, Guangdong Provincial Hospital of Traditional Chinese Medicine; Department of Second Institute of Clinical Medicine, Guangzhou University of Traditional Chinese Medicine; Guangdong Provincial Academy of Chinese Medical Sciences; Guangdong Provincial Chinese Emergency Key Laboratory, Guangzhou, Guangdong Province, China
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Zhang X, Zhao Q, Zhu W, Liu T, Xie SH, Zhong LX, Cai YY, Li XN, Liang M, Chen W, Hu QS, Zhang B. The Association of Telomere Length in Peripheral Blood Cells with Cancer Risk: A Systematic Review and Meta-analysis of Prospective Studies. Cancer Epidemiol Biomarkers Prev 2017; 26:1381-1390. [PMID: 28619828 DOI: 10.1158/1055-9965.epi-16-0968] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 04/27/2017] [Accepted: 06/05/2017] [Indexed: 11/16/2022] Open
Abstract
The association between telomere length (TL) in peripheral blood cells and cancer risk remains inconclusive. We carried out a meta-analysis on prospective studies. The study-specific RR estimates were first transformed to a common comparable scale and then were pooled by a random-effects model. The dataset was composed of 13,894 cases and 71,672 controls from 28 studies in 25 articles. In the comparison of the longest versus shortest third of TL, we observed a marginally positive association between longer TL and higher risk of total cancers [OR = 1.086; 95% confidence interval (CI), 0.952-1.238]. Subgroup analyses showed that the association was stronger in lung cancer (n = 3; OR = 1.690; 95% CI, 1.253-2.280), in men (n = 6; OR = 1.302; 95% CI, 1.120-1.514) and in studies with more precise methods for DNA extraction (phenol-chloroform, salting-out or magnetic bead, n = 6, OR = 1.618; 95% CI, 1.320-1.985) and TL measurement (multiplex Q-PCR, n = 8; OR = 1.439; 95% CI, 1.118-1.852). Our meta-analysis suggested longer TL in peripheral blood cells is a likely risk factor for lung cancer or cancers in men. Accurate DNA extraction and TL measurement methods make it more liable to find significant associations between TL and cancer risk and thus should be taken into consideration in future epidemiologic studies. Cancer Epidemiol Biomarkers Prev; 26(9); 1381-90. ©2017 AACR.
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Affiliation(s)
- Xia Zhang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Qian Zhao
- School of Public Health, Guangzhou Medical University, Guangzhou, China
| | - Wei Zhu
- Department of Toxicology, Guangzhou Centre for Disease Control and Prevention, Guangzhou, China
| | - Tao Liu
- Guangdong Provincial Institute of Public Health, Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Shao-Hua Xie
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Li-Xin Zhong
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Yuan-Yuan Cai
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Xiao-Na Li
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Mei Liang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Wen Chen
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Qian-Sheng Hu
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-Sen University, Guangzhou, China
| | - Bo Zhang
- Guangzhou Key Laboratory of Environmental Pollution and Health Risk Assessment, Department of Preventive Medicine, School of Public Health, Sun Yat-Sen University, Guangzhou, China.
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Li GS, Yang Y, Wang YM, Ming TF, Han X, Liu SC, Wang EH, Liu YK, Yang WJ, Li GQ, Hu QS, Gao X. Preliminary consideration of CFETR ITER-like case diagnostic system. Rev Sci Instrum 2016; 87:11D401. [PMID: 27910474 DOI: 10.1063/1.4955293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Chinese Fusion Engineering Test Reactor (CFETR) is a new superconducting tokamak device being designed in China, which aims at bridging the gap between ITER and DEMO, where DEMO is a tokamak demonstration fusion reactor. Two diagnostic cases, ITER-like case and towards DEMO case, have been considered for CFETR early and later operating phases, respectively. In this paper, some preliminary consideration of ITER-like case will be presented. Based on ITER diagnostic system, three versions of increased complexity and coverage of the ITER-like case diagnostic system have been developed with different goals and functions. Version A aims only machine protection and basic control. Both of version B and version C are mainly for machine protection, basic and advanced control, but version C has an increased level of redundancy necessary for improved measurements capability. The performance of these versions and needed R&D work are outlined.
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Affiliation(s)
- G S Li
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - Y Yang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - Y M Wang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - T F Ming
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - X Han
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - S C Liu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - E H Wang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - Y K Liu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
| | - W J Yang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - G Q Li
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - Q S Hu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - X Gao
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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Abstract
Ten years of calving records were examined from Bos taurus crossbred cows (mean of 182 cows/yr) to quantify the effects of environmental conditions during the breeding season on pregnancy rate. Estimated breeding dates were determined by subtracting 283 d from the calving date. Relationships were determined between the proportion of cows bred during the periods from the beginning of the breeding season until d 21, 42, and 60 of the breeding season and the corresponding environmental variables. Weather data were compiled from a weather station located approximately 20 km from the research site. Average daily temperature and relative humidity were used to calculate daily temperature-humidity index (THI). Daily averages for each environmental variable were averaged for each period. Minimum temperature (MNTP) and THI for the first 21 and 42 d of the breeding season were negatively associated (P < 0.001) with pregnancy rate. For the 0-to 21-d, 0- to 42-d, and 0- to 60-d breeding periods, respective r2 for average temperatures were 0.32, 0.37, and 0.11, whereas r2 for MNTP were 0.45, 0.40, and 0.10 and r2 for THI were 0.38, 0.41, and 0.11, respectively, for the same breeding periods. The negative associations of temperature and THI with pregnancy rate are most pronounced during the first 21 d of the breeding season, with a -3.79 and -2.06% change in pregnancy rate for each unit of change in MNTP and THI, respectively. A combination of environmental variables increased the R2 to 0.67. In this analysis, windspeed was found to be positively associated with pregnancy rate in all equations and increased the R2 in all breeding periods. Optimum MNTP for the 0- to 21-d, 0- to 42-d, and 0- to 60-d breeding periods was 12.6, 13.5, and 14.9 degrees C, respectively. For the 0- to 60-d breeding period, optimum THI was 68.0, whereas the THI threshold, the calculated level at which cattle will adapt, was found to be 72.9. Reductions in pregnancy rate are likely when the average MNTP and THI equal or exceed 16.7 degrees C and 72.9, respectively, and for Bos taurus beef cows that are pasture bred during a 60-d spring-summer period.
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Affiliation(s)
- J L Amundson
- Department of Animal Science, University of Nebraska, Lincoln, NE 68583-0908, USA
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Fu HJ, Hu QS, Lin ZN, Ren TL, Song H, Cai CK, Dong SZ. Aluminum-induced apoptosis in cultured cortical neurons and its effect on SAPK/JNK signal transduction pathway. Brain Res 2003; 980:11-23. [PMID: 12865155 DOI: 10.1016/s0006-8993(03)02833-6] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Aluminum exposure and apoptotic cell death has been implicated in several neurodegenerative diseases. The mechanisms by which aluminum interacts with the nervous system are only partly understood. In this study, we used cultured cortical neurons to investigate the ability of aluminum to induce the apoptosis of neurons and to explore the role of SAPK/JNK (stress-activated protein kinase or c-jun N-terminal kinase) signal transduction pathway on the apoptosis induced by aluminum. We found that aluminum-induced degeneration of cortical neurons involved the DNA fragmentation characteristic of apoptosis, and staining of aluminum-treated neurons with the DNA-binding fluorochrome Hoechst 33258 revealed the typical apoptotic condensation and fragmentation of chromatin. The rate of apoptosis increased significantly (from 4.9 to 13.1, 21.4, and 59.8%, P<0.01), which was measured by TdT-mediated dUTP nick end labeling. Western blot analysis showed that SAPK/JNK activities of cortical neurons varies when the exposure time of AlCl(3) were different. The phosphorylation levels were 4.2, 3.3, 1.9 and 1.1 times greater compared to control cultures for 6, 12, 24, and 48 h, respectively (P<0.01). Furthermore, a JNK pathway inhibitor, CEP-11004 (KT8138) inhibited the activation of SAPK/JNK to protect cortical neurons from apoptosis induced by aluminum chloride. Our study demonstrates that aluminum can induce the apoptosis of cortical neurons and SAPK/JNK signal transduction pathway may play an important role in the apoptosis.
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Affiliation(s)
- Hong-Jun Fu
- Department of Preventive Medicine, School of Public Health, Sun Yat-Sen University (Northern Campus), 74 Zhongshan Road 2, Guangzhou 510080, China
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Pugh VJ, Hu QS, Zuo X, Lewis FD, Pu L. Optically active BINOL core-based phenyleneethynylene dendrimers for the enantioselective fluorescent recognition of amino alcohols. J Org Chem 2001; 66:6136-40. [PMID: 11529742 DOI: 10.1021/jo010479t] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A dramatic enhancement in fluorescence intensity from 1,1'-bi-2-naphthol (BINOL) to dendritic phenyleneethynylenes containing the BINOL core was observed. The strong fluorescence of the dendrimers allows a very small amount of the chiral materials to be used for sensing. The light harvesting antennas of the dendrimer funnel energy to the center BINOL unit, whose hydroxyl groups upon interaction with a quencher molecule lead to fluorescence quenching. This mechanism makes the dendrimers have much more sensitive fluorescence responses than corresponding small molecule sensors. The fluorescence of these dendrimers can be enantioselectively quenched by chiral amino alcohols. It is observed that the fluorescence lifetime of the generation two dendrimer does not change in the presence of various concentrations of 2-amino-3-phenyl-1-propanol. This demonstrates that the fluorescence quenching is entirely due to static quenching. Thus, formation of nonfluorescent ground-state hydrogen-bond complexes between the dendrimers and amino alcohols is proposed to account for the fluorescent quenching. A linear relationship has been established between the Stern-Völmer constant of the generation two dendrimer and the enantiomeric composition of 2-amino-3-phenyl-1-propanol. Such enantioselective fluorescent sensors may allow a rapid determination of the enantiomeric composition of chiral molecules and are potentially useful in the combinatorial search of asymmetric catalysts and reagents.
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Affiliation(s)
- V J Pugh
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, USA
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Gong LZ, Hu QS, Pu L. Optically active dendrimers with a binaphthyl core and phenylene dendrons: light harvesting and enantioselective fluorescent sensing. J Org Chem 2001; 66:2358-67. [PMID: 11281776 DOI: 10.1021/jo001565g] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Optically active dendrimers containing a 1,1'-binaphthyl core and cross-conjugated phenylene dendrons were synthesized and characterized. The chiral optical properties of these phenylene-based dendrimers are different from the previously reported phenyleneethynylene-based dendrimers probably because of the increased steric interaction between the adjacent phenylene units. UV and fluorescence spectroscopic studies demonstrate that the energy harvested by the periphery of the dendrimers can be efficiently transferred to the more conjugated core, generating much enhanced fluorescence signal at higher generation. The fluorescence of these dendrimers can be quenched both efficiently and enantioselectively by chiral amino alcohols. The energy migration and light-harvesting effects of the dendrimers make the higher generation dendrimer more sensitive to fluorescent quenchers than the lower ones. Thus, the dendritic structure provides a signal amplification mechanism. These materials are potentially useful in the enantioselective recognition of chiral organic molecules.
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Affiliation(s)
- L Z Gong
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, USA
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Tan ZJ, Wei JB, Li ZW, Shao M, Hu QS, Peng BW. [Modulation of GABA-activated currents by oxytocin in rat dorsal root ganglion neurons]. Sheng Li Xue Bao 2000; 52:381-4. [PMID: 11941391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Experiments were performed on freshly isolated dorsal root ganglion (DRG) neurons of rat. GABA(A)-activated currents were recorded using the whole-cell patch clamp technique. The majority of the neurons (48/52, 90.5%) were sensitive to GABA (10( 6)~10( 3) mol/L). Application of oxytocin (OT) induced outward membrane responses in 51.3% (20/39) of the neurons, no apparent responses in 43.6% (17/39) and inward responses in 5.1% (2/39). 10( 12), 10( 11), 10( 10) and 10( 9) mol/L OT increased 10( 4) mol/L GABA-activated currents to 24.1+/-7.6% (n=6), 33.4+/-6.9% (n=9), 40.2+/-6.5% (n=13) and 67.2+/-14.8% (n=5), respectively. After preapplication of OT, the Kd value for GABA(A)-activated currents decreased, while the response obtained at the maximum concentration increased. The results suggest that the enhancement of GABA-activated currents by OT may suppress primary sensory transmission by potentiating pre-synaptic inhibition of GABA.
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Affiliation(s)
- Z J Tan
- Department of Physiology, Hubei Medical University, Wuhan 430071, China
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