Effect of Blue and Green Light Emitting Diode (LED) on Rat's Retina.

gohary, Mohamed Ismail El; awady, Amal El; Mahmoud, Tamer H.; Gamal, Mona; Ghazala, M. A. Abu

doi:10.21608/ejbbe.2018.2842.1015

Egypt. J. Biophys. Biomed. Engng.

2018

DOI: 10.21608/ejbbe.2018.2842.1015

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Effect of Blue and Green Light Emitting Diode (LED) on Rat's Retina.

Mohamed Ismail El gohary

Amal El awady

Tamer H. Mahmoud

et al.

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2024

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Cited by 1 publication

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Melatonin Alters Preference to Move Toward Monochromatic Lights in Female Syrian Hamsters: A Behavior Associated With Circadian Rhythm

Shadman

2024

J Exp Zool Pt A

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Different light colors have different effects on endogenous melatonin. The preference for light colors has been studied in various animal species, except hamsters. Additionally, no research has been done on how melatonin affects color preference. In this study, I investigated whether melatonin can influence Syrian hamsters' preferences for various light colors. Eighteen female Syrian hamsters were divided into a control group and a test group orally administered 0.01 mg melatonin daily for 30 days. On Day 31, I placed each hamster in the test box at four stages: dark mid‐phase; beginning, middle, and end of day. The box had four areas with red, yellow, green, and blue lamps. In each stage, the hamsters' movements were recorded for 5 min. I tested the effects of color, stage, and melatonin treatment using a mixed model analysis. The preferences of both groups changed between the stages (p < 0.001) with the except stages 1 and 4 of the control group (p = 0.012); and stages 2 and 3 of the test group for the yellow color (p = 0.104). There was a significant difference between the test and the control groups in all stages and all colors (p < 0.001) except the green light color in stage 2 (p = 0.007). The results suggest that exogenous melatonin controls the preference for monochromatic light by an unknown mechanism. Circadian endogenous melatonin levels are also effective. Scientists must consider melatonin levels in studies evaluating responses to light.

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Melatonin Alters Preference to Move Toward Monochromatic Lights in Female Syrian Hamsters: A Behavior Associated With Circadian Rhythm

Shadman

2024

J Exp Zool Pt A

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Effect of Blue and Green Light Emitting Diode (LED) on Rat's Retina.

Cited by 1 publication

References 17 publications

Melatonin Alters Preference to Move Toward Monochromatic Lights in Female Syrian Hamsters: A Behavior Associated With Circadian Rhythm

Melatonin Alters Preference to Move Toward Monochromatic Lights in Female Syrian Hamsters: A Behavior Associated With Circadian Rhythm

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