Article
Multidisciplinary Sciences
Lijun Chen, Fang-Fang Yan, Shuhan Fan, Yifan Wu, Jia Yang, Hua Yang, Chang-Bing Huang
Summary: The study found a significant interaction between illuminance levels and time-of-day on subjective comfort, with participants feeling more comfortable under 50 lux and 100 lux instead of 500 lux in the evening, and more comfortable under 500 lux in the morning and afternoon. Additionally, there was a positive correlation between illuminance and comfort in the morning, and a negative correlation in the evening. No significant effect of correlated color temperature on any subjective feeling was revealed.
SCIENTIFIC REPORTS
(2021)
Article
Plant Sciences
Carolina Falcato Fialho Palma, Victor Castro-Alves, Eva Rosenqvist, Carl-Otto Ottosen, Ake Strid, Luis Orlando Morales
Summary: This study enhances our understanding of plant responses to UV radiation in combination with different light spectra, revealing the differential regulation of gene expression and metabolite accumulation by different light backgrounds. These findings contribute to the design of light recipes for horticultural practices aiming to modify plant metabolism and improve crop quality.
PHYSIOLOGIA PLANTARUM
(2021)
Review
Psychology, Multidisciplinary
Mushfiqul Anwar Siraji, Vineetha Kalavally, Alexandre Schaefer, Shamsul Haque
Summary: This paper reports the results of a systematic review on the effects of daytime electric light exposure on alertness and higher cognitive functions. The study found that both short-wavelength dominant light exposure and higher intensity white light exposure increased alertness, but the effects varied depending on factors such as participants' sleep drive and the timing of light exposure. The relationship between light exposure and higher cognitive functions was not straightforward, and optimal light properties for cognitive functions depended on task complexity and control light properties.
FRONTIERS IN PSYCHOLOGY
(2022)
Article
Plant Sciences
Dhekra Abdouli, Sihem Soufi, Taoufik Bettaieb, Stefaan P. O. Werbrouck
Summary: Switching from traditional fluorescent light to LED light can have both positive and negative effects on plant growth and quality. Red LED light benefits plant growth but causes shoot tip and leaf necrosis. Blue LED light helps with over-hydration and shoot tip necrosis but has limited effects on proliferation. A combination of red and blue LED light reduces over-hydration and promotes limited proliferation but increases leaf necrosis. It is important to find an optimal lighting regimen through trial and error.
Article
Agriculture, Dairy & Animal Science
Lu Wang, Zixu Wang, Yaoxing Chen, Jing Cao
Summary: This study investigated the effects of monochromatic LED lights on liver glycogen and lipid synthesis in broilers. The results showed that liver, abdominal fat, and abdominal fat indices increased with age. Liver glycogen and triglyceride contents also showed an increasing trend. mRNA levels of several genes related to glycogen and lipid synthesis in the liver varied with different light sources and ages. Total antioxidant capacity and liver superoxide dismutase contents increased with age and light source.
Article
Clinical Neurology
Sarah L. Chellappa, Vivien Bromundt, Sylvia Frey, Torsten Schlote, David Goldblum, Christian Cajochen, Carolin F. Reichert
Summary: The study examined the effects of lens replacement on procedural learning in older cataract patients, with results showing that patients with UV lens replacement performed better during blue-enriched light exposure.
JOURNAL OF SLEEP RESEARCH
(2021)
Article
Environmental Sciences
Naifan Hu, Degong Pan, Yong Yang, Lining Pu, Xiaoxue He, Huihui Wang, Xue Zhang, Yurun Du, Zhenfan Yu, Shulan He, Jiangping Li
Summary: This study investigated the effects of exposure to leachate from boiled-water treated plastic products on cognitive function in mice through changes in gut microbiota diversity. Three popular kinds of plastic products, including non-woven tea bags, food-grade plastic bags, and disposable paper cups, were used to establish drinking water exposure models. The results showed that the diversity and composition of gut microbiota changed, with specific alterations observed in different intervention groups. Cognitive decline, protein deposition, cell damage, and neuroinflammation were observed in the mice. In conclusion, oral exposure to leachate from boiled-water treated plastic products can lead to cognitive decline and neuroinflammation, likely mediated by changes in gut microbiota.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Physiology
Sang-Seo Park, Hye-Sang Park, Chang-Ju Kim, Seung-Soo Baek, Song-Young Park, Cody Anderson, Myung-Ki Kim, Ik-Ryeul Park, Tae-Woon Kim
Summary: Exercising in a 40-Hz light flicker environment was found to be more effective than exercise or 40-Hz light flicker alone. This synergistic effect may prevent cognitive dysfunction by inhibiting the Aβ, tau pathway, and neuroinflammation, and enhancing neuroplasticity and mitochondrial functions in the hippocampus during the early stages of Alzheimer's disease.
JOURNAL OF APPLIED PHYSIOLOGY
(2022)
Article
Environmental Sciences
Xiao-Ting Lu, Shi-Meng Xu, Yun-Wei Zhang, Dan Gao, Hui Yang, Jing Song, Lin-Ping Wang, Qin-Li Zhang, Nan Shang, Qiao Niu
Summary: The study findings suggest that continuous occupational exposure to aluminum may impair workers' cognitive abilities, especially episodic memory function.
Article
Environmental Sciences
Chao Zhang, Xiao-chang Wu, Sha Li, Lian-jie Dou, Li Zhou, Feng-hui Wang, Kai Ma, Dan Huang, Ying Pan, Ji-jun Gu, Ji-yu Cao, Hua Wang, Jia-hu Hao
Summary: The study found that perinatal exposure to low-dose Bisphenol AF affects the cognitive function of adult mouse offspring, with a more pronounced effect on male offspring. Impairments in dendritic arborization and cognitive function were observed in male offspring, while only high-dose exposure affected female offspring. Additionally, BPAF disrupted the balance of oxidation and antioxidation in the hippocampus of male offspring.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Jianxiu Liu, Ruidong Liu, Yao Zhang, Xiangqian Lao, Kate L. Mandeville, Xindong Ma, Qian Di
Summary: Engaging in leisure-time physical activity improves cognitive function, even under exposure to PM2.5 pollution, although the cognitive benefits are attenuated by PM2.5 exposure.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Environmental Sciences
Qingyun Guan, Zixu Wang, Jing Cao, Yulan Dong, Yaoxing Chen
Summary: This study found that continuous blue light exposure exacerbates hepatic steatosis in high-fat diet-fed mice. This effect may be attributed to disturbances in biological rhythm, increased corticosterone secretion, induction of oxidative stress, and interference with genes involved in lipid metabolism in the liver.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Multidisciplinary Sciences
Marlie C. Tandoc, Mollie Bayda, Craig Poskanzer, Eileen Cho, Roy Cox, Robert Stickgold, Anna C. Schapiro
Summary: This study found that contrary to expectations, sleep did not significantly improve generalization ability, but time of day did influence generalization, with better performance in the morning. However, specific effects may be related to the state of brain inhibition.
Article
Environmental Sciences
Xueqiong Weng, Huanzhu Liang, Yuxuan Tan, Jingmin Chen, Qiaoyuan Fei, Shan Liu, Xinrong Guo, Lin Wen, Yingying Wu, Chunxia Jing
Summary: The study found that PFAS mixtures at low levels of current exposure in the US population may have a protective effect on cognitive function.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Geriatrics & Gerontology
Terri L. Blackwell, Mariana G. Figueiro, Gregory J. Tranah, Jamie M. Zeitzer, Kristine Yaffe, Sonia Ancoli-Israel, Deborah M. Kado, Kristine E. Ensrud, Nancy E. Lane, Yue Leng, Katie L. Stone
Summary: This study found that older men with worse alignment of activity and light had lower levels of cognition and increased rates of cognitive decline. However, there was no association between phasor angle and cognition. Interventions that improve the alignment of light and activity may help slow cognitive decline in older adults.
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
(2023)
