Photobiology of lipofuscin granules in the retinal pigment epithelium cells of the eye: norm, pathology, age

TB Feldman, AE Dontsov, MA Yakovleva… - Biophysical …, 2022 - Springer
Lipofuscin granules (LGs) are accumulated in the retinal pigment epithelium (RPE) cells.
The progressive LG accumulation can somehow lead to pathology and accelerate the aging …

The effect of diet on melanin pigmentation in animals

S Britton, G Davidowitz - Functional Ecology, 2023 - Wiley Online Library
Melanin, including both eu‐and pheomelanin forms, is the most common pigment type in
animals and plays numerous adaptive roles. However, the effect of diet on melanin …

Antioxidative Properties of Melanins and Ommochromes from Black Soldier Fly Hermetia illucens

N Ushakova, A Dontsov, N Sakina, A Bastrakov… - Biomolecules, 2019 - mdpi.com
A comparative study of melanin and ommochrome-containing samples, isolated from the
black soldier fly (BSF) by enzymatic hydrolysis, alkaline and acid alcohol extraction or by …

Ommochromes from the compound eyes of insects: physicochemical properties and antioxidant activity

AE Dontsov, NL Sakina, MA Yakovleva… - Biochemistry …, 2020 - Springer
The objective of this study was screening of ommochromes from the compound eyes of
insects and comparison of their antioxidant properties. Ommochromes were isolated in …

Diet influences resource allocation in chemical defence but not melanin synthesis in an aposematic moth

C Ottocento, B Rojas, E Burdfield-Steel… - Journal of …, 2024 - journals.biologists.com
For animals that synthesise their chemical compounds de novo, resources, particularly
proteins, can influence investment in chemical defences and nitrogen-based wing …

Blue Light-Induced Accelerated Formation of Melanolipofuscin-Like Organelles in Japanese Quail RPE Cells: An Electron Microscopic Study

NB Serejnikova, NN Trofimova… - … & Visual Science, 2024 - iovs.arvojournals.org
Purpose: The retinal pigment epithelium (RPE) is a monolayer of epithelial cells essential for
photoreceptor function and viability. Quail Coturnix japonica is a convenient experimental …

Properties of cephalopod skin ommochromes to inhibit free radicals, and the Maillard reaction and retino-protective mechanisms in cellular models concerning …

LLM Lewis, P Dörschmann, C Seeba, T Thalenhorst… - Antioxidants, 2022 - mdpi.com
Ommochromes are pigments of invertebrates that exhibit oxidative stress protection. The aim
of this study was to investigate ommochromes extracted from cephalopod's skin for their …

Retinal Pigment Epithelium Pigment Granules: Norms, Age Relations and Pathology

A Dontsov, M Ostrovsky - International Journal of Molecular Sciences, 2024 - mdpi.com
The retinal pigment epithelium (RPE), which ensures the normal functioning of the neural
retina, is a pigmented single-cell layer that separates the retina from the Bruch's membrane …

Xanthurenic Acid in the Shell Purple Patterns of Crassostrea gigas: First Evidence of an Ommochrome Metabolite in a Mollusk Shell

M Bonnard, B Boury, I Parrot - Molecules, 2021 - mdpi.com
Ommochromes are one of the least studied groups of natural pigments, frequently confused
with melanin and, so far, exclusively found in invertebrates such as cephalopods and …

[HTML][HTML] Oxidative destruction of human RPE melanosomes induced by superoxide radicals leads to the formation of reactive aldehydes and ketones

AA Gulin, AE Dontsov, MA Yakovleva… - Научно-технические …, 2022 - cyberleninka.ru
Oxidative destruction of the natural pigment melanin leads to a decrease in its concentration
in the cell, a decrease of antioxidant properties and the accumulation of products that exhibit …