aphelasterias japonica
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2018 ◽  
Author(s):  
Yura A Karetin ◽  
Eduardas Cicinskas

Describing cell morphology is a tricky task, prone to misinterpretation due to subjective nature of the human observer and his vocabulary limitations. Consequently, these limitations actuate prevalence of non-formalized, statistically unverifiable language use. This determines the reason for overlooking cell shape as a viable parameter for describing cell's functional state intricacies. In this study we demonstrate the use of mathematical parameters set for describing two-dimensional fractals, such as: convex hull, density, roundness and asymmetry, for comparative in vitro morphological analysis of sprawled starfishes' Aphelasterias japonica and Patiria pectinifera (Echinodermata: Asteroidea) coelomocytes, and bivalve's Callista brevisiphonata (Mollusca: Bivalvia) hemocytes. We found that these parameters allow us to describe visually distinguishable but verbally indescribable "chaotic" sprawled cell shapes. Furthermore, resulting numerical cell descriptions differs significantly, enabling for their species-specific grouping and classification. We argue that presented morphometric methodology can be used for describing and classifying cells of any arbitrary morphology, as well as compiling "cell shape - cell functional state" match library for later use in in vitro analysis, potentially for cells of any animal.


2018 ◽  
Author(s):  
Yura A Karetin ◽  
Eduardas Cicinskas

Describing cell morphology is a tricky task, prone to misinterpretation due to subjective nature of the human observer and his vocabulary limitations. Consequently, these limitations actuate prevalence of non-formalized, statistically unverifiable language use. This determines the reason for overlooking cell shape as a viable parameter for describing cell's functional state intricacies. In this study we demonstrate the use of mathematical parameters set for describing two-dimensional fractals, such as: convex hull, density, roundness and asymmetry, for comparative in vitro morphological analysis of sprawled starfishes' Aphelasterias japonica and Patiria pectinifera (Echinodermata: Asteroidea) coelomocytes, and bivalve's Callista brevisiphonata (Mollusca: Bivalvia) hemocytes. We found that these parameters allow us to describe visually distinguishable but verbally indescribable "chaotic" sprawled cell shapes. Furthermore, resulting numerical cell descriptions differs significantly, enabling for their species-specific grouping and classification. We argue that presented morphometric methodology can be used for describing and classifying cells of any arbitrary morphology, as well as compiling "cell shape - cell functional state" match library for later use in in vitro analysis, potentially for cells of any animal.


2018 ◽  
Author(s):  
Yura A Karetin ◽  
Aleksandra A Kalitnik ◽  
Eduardas Cicinskas

Describing cell morphology is a tricky task, prone to misinterpretation due to subjective nature of the human observer and his vocabulary limitations. Consequently, these limitations actuate prevalence of non-formalized, statistically unverifiable language use. This determines the reason for overlooking cell shape as a viable parameter for describing cell's functional state intricacies. In this study we demonstrate the use of mathematical parameters set for describing two-dimensional fractals, such as: convex hull, density, roundness and asymmetry, for comparative in vitro morphological analysis of sprawled starfishes' Aphelasterias japonica and Patiria pectinifera (Echinodermata: Asteroidea) coelomocytes, and bivalve's Callista brevisiphonata (Mollusca: Bivalvia) hemocytes. We found that these parameters allow us to describe visually distinguishable but verbally indescribable "chaotic" sprawled cell shapes. Furthermore, resulting numerical cell descriptions differs significantly, enabling for their species-specific grouping and classification. We argue that presented morphometric methodology can be used for describing and classifying cells of any arbitrary morphology, as well as compiling "cell shape - cell functional state" match library for later use in in vitro analysis, potentially for cells of any animal.


2016 ◽  
Vol 11 (9) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Roman S. Popov ◽  
Natalia V. Ivanchina ◽  
Anatoly I. Kalinovsky ◽  
Sofiya D. Kharchenko ◽  
Alla A. Kicha ◽  
...  

A new asterosaponin aphelasteroside F (1) was isolated from the ethanolic extract of the Far Eastern starfish Aphelasterias japonica along with the previously known ophidianoside F (2). The structure of 1 was elucidated by extensive use of NMR and ESI-MS techniques, and chemical transformations. Compound 1 contains a new type of asterosaponin carbohydrate chain linked to C-6 of the steroid aglycone aphelaketotriol. Compounds 1 and 2 at non-toxic concentrations slightly inhibited cell proliferation and colony formation of the cancer melanoma cell lines SK-Mel-28, SK-Mel-5, and RPMI-7951.


Metabolomics ◽  
2014 ◽  
Vol 10 (6) ◽  
pp. 1152-1168 ◽  
Author(s):  
Roman S. Popov ◽  
Natalia V. Ivanchina ◽  
Alla A. Kicha ◽  
Timofey V. Malyarenko ◽  
Pavel S. Dmitrenok ◽  
...  

2013 ◽  
Vol 49 (2) ◽  
pp. 286-290 ◽  
Author(s):  
R. S. Popov ◽  
N. V. Ivanchina ◽  
A. A. Kicha ◽  
T. B. Malyarenko ◽  
A. I. Kalinovskii ◽  
...  

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