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Author Vásquez, D.A.; Grez, A.A.; Rodríguez-San Pedro, A.; Ortega, J.
Title Species-specific effects of moonlight on insectivorous bat activity in central Chile Type Journal Article
Year (down) 2020 Publication Journal of Mammalogy Abbreviated Journal
Volume in press Issue Pages in press
Keywords Animals; Moonlight
Abstract Moonlight intensity influences the activity patterns of bats. Some bat species reduce their activity levels during brighter nights, a phenomenon known as “lunar phobia.” While lunar phobia of bats has been extensively studied in tropical regions, the same is not the case of bats in temperate regions. By using acoustic detectors, we examined differences in the activity of insectivorous bats on nights with different moonlight intensity in an agricultural landscape of central Chile. We also examined the hourly activity patterns throughout the night and how these varied between full and new moon nights. All bat species modified their activity based on the moonlight intensity; however, their effects were species-specific. The activity of Lasiurus varius, L. villosissimus, Myotis chiloensis, and Histiotus montanus was lower during bright nights, while Tadarida brasiliensis was the only species whose activity was higher during bright nights. Hourly activity throughout the night differed between full moon nights and new moon nights in most bat species. During full moon, bats concentrated their activities in the early hours of the nights; a more homogeneous activity pattern was exhibited during new moon night. Our study demonstrates that moonlight affects the activity of bats in Chile, a factor that should be considered when studying bats.

La intensidad de la luz de la luna influye sobre los patrones de actividad de los murciélagos. Algunas especies reducen sus niveles de actividad durante las noches más brillantes, un fenómeno conocido como “fobia lunar.” Si bien esos efectos se han estudiado ampliamente en las especies de murciélagos de las regiones tropicales, pocos estudios han evaluado la respuesta de los murciélagos en las regiones templadas. Mediante el uso de detectores acústicos, examinamos las diferencias en la actividad de los murciélagos insectívoros entre noches con diferentes intensidades de la luz de la luna en un paisaje agrícola de la zona central de Chile. También examinamos la actividad temporal a lo largo de la noche y cómo ésta varía entre noches de luna llena y luna nueva. Todas las especies de murciélagos modificaron su actividad en función de la intensidad de la luz de la luna; sin embargo, sus efectos fueron especie-específicos. La actividad de Lasiurus varius, Lasiurus villosissimus, Myotis chiloensis, e Histiotus montanus fue menor durante las noches más claras, mientras que Tadarida brasiliensis fue la única especie cuya actividad fue mayor en las noches claras. La actividad por hora a lo largo de la noche difirió entre las noches de luna llena y las de luna nueva en la mayoría de las especies de murciélagos. Durante la luna llena, los murciélagos concentraron su actividad durante las primeras horas de la noche, mostrando una actividad más homogénea a lo largo de la noche en luna nueva. Nuestro estudio indica que la luz de la luna es un factor que afecta la actividad de los murciélagos en Chile, y por lo tanto debe ser considerado al realizar estudios de murciélagos.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0022-2372 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 3096
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Author Torriglia, A.; Mascarelli, F.; Behar-Cohen, F.
Title [New lighting technology and our eyes] Type Journal Article
Year (down) 2020 Publication Medecine Sciences : M/S Abbreviated Journal Med Sci (Paris)
Volume 36 Issue 8-9 Pages 769-773
Keywords Review; Human Health
Abstract The retina is the neurosensitive layer of the eye. In this tissue, photoreceptors convert light into nerve signals to be relayed to the brain. Despite retinal specialization in the treatment of light, excessive exposure can cause retinal damage, called retinal phototoxicity. In recent years, lighting devices rich in wavelengths of high energy (blue light) appeared, raising new concerns about retinal protection against light damage. We focus here on light-induced ocular diseases and the possible influence on visual health of new lighting technologies.

Dans la rétine, couche neurosensorielle de l’œil, les photorécepteurs transforment le signal lumineux en influx nerveux interprétable par le cerveau. Malgré sa spécialisation dans le traitement des signaux lumineux, la rétine peut subir des dommages, à la suite d’une exposition excessive à la lumière ; on parle alors de phototoxicité rétinienne. Ces dernières années, l’apparition de dispositifs d’éclairage riches en longueurs d’onde de forte énergie (ce que l’on nomme lumière bleue), remet le problème de la phototoxicité rétinienne à l’ordre du jour. Nous discutons des pathologies oculaires induites par la lumière et de la possible influence des nouvelles technologies d’éclairage sur notre santé visuelle.
Address Centre de Recherche des Cordeliers, Inserm, Sorbonne Universite, USPC, universite de Paris Descartes, equipe << Physiopathologie des maladies oculaires : innovations therapeutiques >>, 15 rue de l'Ecole de Medecine, F-75006 Paris, France
Corporate Author Thesis
Publisher Place of Publication Editor
Language French Summary Language Original Title Les nouveaux eclairages et nos yeux
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0767-0974 ISBN Medium
Area Expedition Conference
Notes PMID:32821054 Approved no
Call Number GFZ @ kyba @ Serial 3097
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Author Rea, M.S.; Nagare, R.; Figueiro, M.G.
Title Predictions of melatonin suppression during the early biological night and their implications for residential light exposures prior to sleeping Type Journal Article
Year (down) 2020 Publication Scientific Reports Abbreviated Journal Sci Rep
Volume 10 Issue 1 Pages 14114
Keywords Human Health
Abstract The magnitude of nocturnal melatonin suppression depends upon the spectrum, amount, and duration of light exposure. The functional relationship between melatonin suppression and the light spectrum and amount have been previously described. Only one duration-dependent parameter was needed to extend this functional relationship to predict nocturnal melatonin suppression during the early biological night from a variety of published studies. Those predictions suggest that ambient lighting commonly found in North American homes will not suppress melatonin for durations up to 3 h, whereas extended use of self-luminous displays in the home prior to sleep can.
Address Lighting Research Center, Rensselaer Polytechnic Institute, 21 Union Street, Troy, NY, 12180-3352, USA
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2045-2322 ISBN Medium
Area Expedition Conference
Notes PMID:32839489; PMCID:PMC7445277 Approved no
Call Number GFZ @ kyba @ Serial 3098
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Author Wei, L.; Yue, F.; Xing, L.; Wu, S.; Shi, Y.; Li, J.; Xiang, X.; Lam, S.M.; Shui, G.; Russell, R.; Zhang, D.
Title Constant Light Exposure Alters Gut Microbiota and Promotes the Progression of Steatohepatitis in High Fat Diet Rats Type Journal Article
Year (down) 2020 Publication Frontiers in Microbiology Abbreviated Journal Front. Microbiol.
Volume 11 Issue Pages
Keywords Animals
Abstract Background: Non-alcoholic fatty liver disease (NAFLD) poses a significant health concern worldwide. With the progression of urbanization, light pollution may be a previously unrecognized risk factor for NAFLD/NASH development. However, the role of light pollution on NAFLD is insufficiently understood, and the underlying mechanism remains unclear. Interestingly, recent studies indicate the gut microbiota affects NAFLD/NASH development. Therefore, the present study explored effects of constant light exposure on NAFLD and its related microbiotic mechanisms.

Materials and Methods: Twenty-eight SD male rats were divided into four groups (n = 7 each): rats fed a normal chow diet, and exposed to standard light-dark cycle (ND-LD); rats fed a normal chow diet, and exposed to constant light (ND-LL); rats fed a high fat diet, and exposed to standard light-dark cycle (HFD-LD); and rats on a high fat diet, and exposed to constant light (HFD-LL). Body weight, hepatic pathophysiology, gut microbiota, and short/medium chain fatty acids in colon contents, serum lipopolysaccharide (LPS), and liver LPS-binding protein (LBP) mRNA expression were documented post intervention and compared among groups.

Result: In normal chow fed groups, rats exposed to constant light displayed glucose abnormalities and dyslipidemia. In HFD-fed rats, constant light exposure exacerbated glucose abnormalities, insulin resistance, inflammation, and liver steatohepatitis. Constant light exposure altered composition of gut microbiota in both normal chow and HFD fed rats. Compared with HFD-LD group, HFD-LL rats displayed less Butyricicoccus, Clostridium, and Turicibacter, butyrate levels in colon contents, decreased colon expression of occludin-1 and zonula occluden−1 (ZO-1), and increased serum LPS and liver LBP mRNA expression.

Conclusion: Constant light exposure impacts gut microbiota and its metabolic products, impairs gut barrier function and gut-liver axis, promotes NAFLD/NASH progression in HFD rats.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1664-302X ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 3099
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Author Bautista-Covarrubias, J.C.; Zamora-Ibarra, P.A.; Apreza-Burgos, E.; Rodriguez-Ocampo, A.N.; Peraza-Gomez, V.; Lopez-Sanchez, J.A.; Pacheco-Vega, J.M.; Gonzalez-Hermoso, J.P.; Frias-Espericueta, M.G.
Title Immune response and oxidative stress of shrimp Litopenaeus vannamei at different moon phases Type Journal Article
Year (down) 2020 Publication Fish & Shellfish Immunology Abbreviated Journal Fish Shellfish Immunol
Volume 106 Issue Pages 591-595
Keywords Moonlight; Animals; Moon phase; Oxidative stress; Sod; Shrimp; Vibrio
Abstract Moon phases influence the molting process of shrimp, which affect other physiological processes as immune response. This study analyzed some parameters of immune response: total hemocytes counts (THC), hemolymph clotting time and superoxide anion (O2(-)) production, total protein concentration, superoxide dismutase activity, and the presence of Vibrio spp. in Litopenaeus vannamei at different moon phases. The highest percentage of organisms in intermolt stage was observed in the first quarter moon phase (95%). The highest THC was observed at new moon phase, which was significantly different (p < 0.05) than that observed at the third quarter phase. Hemolymph clotting time and CFU values of Vibrio spp. showed no significant difference (p > 0.05) between different moon phases. The higher (p < 0.05) mean O2(-) production value (0.400 +/- 0.168 nmol min(-1) mL(-1)) was determined in hepatopancreas at new moon phase. No relationship was observed between O2(-) and SOD activity, indicating that this antioxidant response was enough to counteract the influence of oxidative stress in L. vannamei at different moon phases.
Address Laboratorio de Estudios Ambientales, Facultad de Ciencias del Mar, Universidad Autonoma de Sinaloa, Paseo Claussen s/n, Mazatlan, Sinaloa, C.P. 82000, Mexico
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1050-4648 ISBN Medium
Area Expedition Conference
Notes PMID:32846243 Approved no
Call Number GFZ @ kyba @ Serial 3100
Permanent link to this record