Low Dose-Rate Irradiation of Gamma-Rays-Induced Cytotoxic and Genotoxic Alterations in Peripheral Erythrocytes of p53-Deficient Medaka (Oryzias latipes)

Sayed, Alaa El‐Din H.; Nagata, Kazuhiro; Nakazawa, Takahiro; Mikami, Hiroshi; Kobayashi, Junya; Oda, Shoji

doi:10.3389/fmars.2021.773481

Cited by 2 publications

(1 citation statement)

References 61 publications

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“…Schistocytes can occur in acquired and inherited red blood cell disorders, reflecting significant abnormalities in cell shape and size [163]. While being rarely present, studies have indicated the occurrence of schistocytes in fish, particularly under the influence of irradiation and gamma rays [71]. Fish with higher levels of unsaturated fatty acids in their membranes were found to be more susceptible to lipid peroxidation and erythro‐membrane damage following gamma radiation [164].…”

Section: Types Of Poikilocytosis In Fishmentioning

confidence: 99%

Visualization of poikilocytosis as an emerging erythrocytic biomarker for fish health assessment

Bardhan,

Abraham,

Das

et al. 2024

Animal Research and One Health

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Fish health assessment is essential for maintaining sustainable aquatic ecosystems and ensuring the well‐being of wild and farmed fish populations. Hematological parameters are crucial indicators of fish health, with poikilocytosis emerging as a fundamental marker with significant diagnostic value. Poikilocytosis refers to abnormally shaped erythrocytes in bloodstream, reflecting underlying physiological and pathological conditions. Poikilocytosis can occur in various fish species and can be influenced by environmental stressors, infectious agents, nutritional deficiencies, and exposure to pollutants. Morphological alterations in erythrocytes, such as acanthocytes, echinocytes, dacrocytes, schistocytes, spherocytes, and codocytes are common poikilocytes in fish. Understanding the relationship between poikilocytosis and fish health has important implications for disease diagnosis, monitoring, surveillance, and management. By quantifying poikilocytic changes, researchers and veterinarians can differentiate normal variations from pathological conditions, facilitating targeted interventions and treatment strategies. While most studies have focused on heavy metal toxicity, stressors, nutritional deficiencies, pollutants, and therapeutics, the etiological induction of poikilocytosis in fish health has been overlooked. Nonetheless, poikilocytosis remains a valuable biomarker for assessing fish health and their environment. This review highlights piscine poikilocytosis as a significant fish hematological biomarker and its importance in understanding their health and culture conditions.

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Section: Types Of Poikilocytosis In Fishmentioning

confidence: 99%

Visualization of poikilocytosis as an emerging erythrocytic biomarker for fish health assessment

Bardhan,

Abraham,

Das

et al. 2024

Animal Research and One Health

View full text Add to dashboard Cite

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Spatiotemporal Variability in Phytoplankton Size Class Modulated by Summer Monsoon Wind Forcing in the Central Arabian Sea

Chowdhury,

Biswas,

Silori

et al. 2023

JGR Oceans

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The Arabian Sea is an area of intense ocean‐atmospheric coupling that impacts its physicochemical, and biological processes. During the summer monsoon (June‐September), in the central Arabian Sea, a low‐level atmospheric jet blows parallel to the Arabian Peninsula causing open ocean upwelling in the north and downwelling in the south of the jet axis. High wind speeds are witnessed in the jet axis which advect nutrients from the Somali coast. Consequently, hydrography and physicochemical parameters show high spatial variability. In this dynamic region, phytoplankton size class distribution, directly controlled by nutrient supply, can be modulated by monsoon wind variability via upwelling, advection, and entrainment, however, has not been investigated recently. We studied phytoplankton size class related to atmospheric forcing, hydrography, and nutrient stoichiometry in August 2017 and 2018 along 64°E (11°N–21°N). Chemical taxonomy‐based analysis (CHEMTAX and manual) revealed that in the north, upwelling‐driven nutrient enrichment supported microphytoplankton, mostly diatoms contributing ∼50% to phytoplankton biomass. A stronger upwelling due to higher wind forcing in 2018 compared to 2017 resulted in an enhanced nutrient supply as well as an increased contribution of diatoms. Prymnesiophytic nanophytoplankton distribution was linked to mixed layer depths with insignificant spatial variability (20%–30%). Conversely, in the nutrient‐poor southern region, zeaxanthin and DV‐Chla containing picocyanobacteria and prochlorophytes contributed >50% to the total phytoplankton biomass and were associated with high temperatures. Likely, increasing warming and related changes in monsoon intensity might directly influence phytoplankton size classes impacting trophic transfer and carbon cycling.

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Low Dose-Rate Irradiation of Gamma-Rays-Induced Cytotoxic and Genotoxic Alterations in Peripheral Erythrocytes of p53-Deficient Medaka (Oryzias latipes)

Cited by 2 publications

References 61 publications

Visualization of poikilocytosis as an emerging erythrocytic biomarker for fish health assessment

Visualization of poikilocytosis as an emerging erythrocytic biomarker for fish health assessment

Spatiotemporal Variability in Phytoplankton Size Class Modulated by Summer Monsoon Wind Forcing in the Central Arabian Sea

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