11 Result(s)

Article

Salivary Alpha-Amylase Activity and Mild Cognitive Impairment among Japanese Older Adults: The Toon Health Study

There is growing interest in examining objective markers for early identification and behavioral intervention to prevent dementia and mild cognitive impairment in clinical and community settings.

N. Yamane, A. Ikeda, K. Tomooka, I. Saito… in The Journal of Prevention of Alzheimer's D… (2022)

Article

Selective UV-induced damage to short-wavelength receptor cells in the butterflyPapilio xuthus

A technique that allows the specific inactivation of short-wavelength-sensitive photoreceptive cells has been needed for a long time. Such a technique could be useful in studies on the role(s) of UV-receptors ...

M. Wakakuwa, V. B. Meyer-Rochow, M. Dezawa, T. Kashiwagi, E. Eguchi in Protoplasma (1997)

Article

Fatty acid composition and ultrastructure of photoreceptive membranes in the crayfish Procambarus clarkii under conditions of thermal and photic stress

The ultrastructural state of the crayfish visual membrane is correlated with its fatty acid composition during times of photic and thermal stress and the period over which the dynamic events occur is investig...

T. Kashiwagi, V. B. Meyer-Rochow, K. Nishimura… in Journal of Comparative Physiology B (1997)

Article

Light-dependent metabolic pathway of 3-hydroxyretinoids in the eye of a butterfly,Papilio xuthus

1. After the intact compound eyes of the butterflyPapilio xuthus were adapted to darkness, white, blue (λ max 46...

Y Shimazaki, E. Eguchi in Journal of Comparative Physiology A (1995)

Article

Light-dependent metabolic pathway of 3-hydroxyretinoids in the eye of a butterfly, Papilio xuthus

1. After the intact compound eyes of the butterfly Papilio xuthus were adapted to darkness, white, blue (λ max 4...

Y Shimazaki, E. Eguchi in Journal of Comparative Physiology A (1995)

Article

Fatty acid compositions of arthropod and cephalopod photoreceptors: interspecific, seasonal and developmental studies

Fatty acid compositions of the compound eyes of insects (soldier-bug, Hemiptera, and silk moth, Lepidoptera), crustaceans (crayfish and grapsid crab, Decapoda) and inner and outer segments of visual cells of a...

E. Eguchi, Y. Ogawa, K. Okamoto, K. Mochizuki in Journal of Comparative Physiology B (1994)

Article

Extraocular photoreceptors in the last abdominal ganglion of a swallowtail butterfly,Papilio xuthus

K. Arikawa, K. Uchiumi, E. Eguchi in Naturwissenschaften (1991)

Article

Intrinsic control of rhabdom size and rhodopsin content in the crab compound eye by a circadian biological clock

Under conditions of constant darkness, rhabdom volume and the amount of visual pigment chromophore show circadian changes in the compound eye of the crabHemigrapsus sanguineus. The present results indicate that a...

K. Arikawa, Y. Morikawa, T. Suzuki, E. Eguchi in Experientia (1988)

Article

A survey of 3-dehydroretinal as a visual pigment chromophore in various species of crayfish and other freshwater crustaceans

3-Dehydroretinal (vitamin A₂ aldehyde) was found in the eyes of three species among 10 species of freshwater crayfish examined. Since dark-adapted eyes contained the 11-cis form of 3-dehydroretinal, this compound...

T. Suzuki, E. Eguchi in Experientia (1987)

Article

Pentachromatic visual system in a butterfly

K. Arikawa, K. Inokuma, E. Eguchi in Naturwissenschaften (1987)