Andrey Filippov

Andrey Filippov
Russian Academy of Sciences | RAS · Papanin Institute of the Biology of Inland Waters

About

40
Publications
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119
Citations
Citations since 2016
14 Research Items
70 Citations
2016201720182019202020212022051015
2016201720182019202020212022051015
2016201720182019202020212022051015
2016201720182019202020212022051015

Publications

Publications (40)
Article
При введении в питьевую воду пробиотического препарата «Яросил» установлены разнонаправленные изменения активности пищеварительных ферментов в тонкой кишке цыплят-бройлеров кросса Росс 308 (возраст 35 сут.) и 1- и 2-месячных цыплят кросса Ломан Браун. В каждом эксперименте были сформированы три группы цыплят: контрольная и две опытные. Всех птиц со...
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The effect of temporal shifts in diurnal geomagnetic variation with 6-and 12-h intervals relative to the day-night cycle on the activity of digestive glycosidases (maltase and amylolytic activity) and their sensitivity to the in vitro influence of heavy metal ions (Cu 2+ , Zn 2+ , Pb 2+ , Cd 2+) at a concentration of 25 mg/L has been studied in roa...
Article
The in vitro effect of Roundup herbicide at a concentration of 25 μg/L on the activity and temperature characteristics (temperature dependence, activation energy Eact, and Q10 temperature coefficient) of maltase in the intestinal mucosa of the juvenile sander, perch, roach, and common carp has been studied. The magnitude and direction of the effect...
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The effect of exposure to hypogeomagnetic conditions (HMCs) during roach Rutilus rutilus (L.) early development (embryos and prelarvae) on the activity of digestive glycosidase (maltase and amylolytic activity) and the in vitro sensitivity of the digestive glycosidase to ions of heavy metals (Cu²⁺, Zn²⁺, Cu²⁺ + Zn²⁺, Pb²⁺, Cd²⁺, and Pb²⁺ + Cd²⁺) in...
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The study on remote consequences of hypomagnetic conditions during roach Rutilus rutilus embryogenesis (at the stages of embryo and prelarva) revealed multidirectional changes in body length/weight, activities of glycosidases (maltase, sucrase, and amylolytic activity), and kinetic characteristics of carbohydrates hydrolysis in the intestine of the...
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The influence of exogenous triiodothyronine (0.25 ng/mL) on the activity glycosidases (maltase, amylolytic activity) and their sensitivity to Cu, Zn and Pb ions (25 mg/L) has been studied in the whole organism of juvenile blue bream Ballerus ballerus (L.). We have found that the treatment of fish with triiodothyronine resulted in an increase in amy...
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This study aim was finding delayed consequences of the main phase impact and initial recovery period phase of a typical geomagnetic storm (MRGMS) experimentally reproduced in the range of 0–0.001 Hz on roach (Rutilus rutilus L., 1758) embryos. Roe and sperm were collected from four females and eight males caught in the Rybinsk reservoir, to achieve...
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The delayed consequences of the impact of a simulation of the main phase and the initial period of the recovery phase of a typical geomagnetic storm (SMRGMS) in the range of 0−0.001 Hz on roach ( Rutilus rutilus L., 1758) embryos were studied. The embryos were exposed to SMRGMS with intensities of 100, 300 and 500 nT before (1−6 h post fertilizatio...
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The effect of a magnetic storm (frequency range of 0–5 Hz) on the activity and sensitivity of underyearling intestinal glycosidase (maltase and amylolytic activity) to heavy metal ions (Cu2+ and Zn2+, concentrations of 0.1–25 mg/L) and the herbicide Roundup (0.1–50 µg/L) have been studied in vitro during early the embryogenesis of roach Rutilus rut...
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The distant consequences of the changes in local static magnetic field by 100, 300 and 500 nT during different intervals of embryogenesis (before the gastrulation – the first 6 hours after the fertilization and during organogenesis – from the 33th to 39th hour after the fertilization) influence the activity of roach’s digestive glycosidases and its...
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Изучение отдалённых последствий действия флуктуаций магнитного поля, имитирующих магнит� ную бурю, на разных отрезках эмбриогенеза плотвы Rutilus rutilus (0−24, 24−48, 48−72 и 72−96 ч после оплодотворения) выявило снижение линейно�весовых показателей, а также разнонаправленные изменения активности гликозидаз (мальтазы, сахаразы, амилолитической акт...
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The activity of hydrolases (maltase, saccharase, amylolytic activity) in the intestinal mucosa of the plankton-feeding zope Ballerus ballerus and the benthos-feeding white-eye bream Ballerus sapa was investigated. The temperature characteristics of maltase hydrolysis (T(opt) and E(act)) are similar in both species. The lower K(m) of maltase hydroly...
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Исследована активность гликозидаз (мальтаза, сахараза, амилолитическая активность) слизистой оболочки кишечника планктоядного синца Ballerus ballerus и бентоядной белоглазки Ballerus sapa. Температурные характеристики гидролиза мальтозы (Topt и Еакт) у обоих видов сходны. Более низкие значения Km гидролиза мальтозы у белоглазки отражают бóльшее сро...
Article
The activity of hydrolases (maltase, sacharase, amylolytic activity) in the intestinal mucosa of the planktofagous blue bream Ballerus ballerus and benthofagous white-eye bream Ballerus sapa were investigated. The thermal characteristics of maltase hydrolysis (T opt and E act) are similar in both species. The lower K M of maltase hydrolysis in the...
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Full-text available
The separate and combined in vitro effects of heavy metal ions (Cu and Zn) at concentrations of 0.1-25 mg/L on the activities of maltase, sucrase, and amylolytic activity in the intestines of bream and roach caught in areas of the Rybinsk Reservoir differing in anthropogenic loads have been studied. In fish from the polluted Sheksninskii Reach, mem...
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The effects of in vitro exposure to the herbicide Roundup at concentrations of 0.1–50 μg/L on the activity of maltase and sucrase and the total amylolytic activity in the organism of invertebrates and fish fry have been investigated. Glycosidases in invertebrates are less sensitive to the herbicide than those in juvenile fish. Roundup has a greater...
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Remote effects of separate and combined exposure to copper (0.001 mg/L and 0.01 mg/L) and a low-frequency magnetic field during early embryogenesis in roach (Rutilus rutilus) underyearlings were studied. The study revealed that exposures lead to changes in the linear and weight parameters, activity of glycosidases, and kinetic characteristics of ca...
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A brief overview of data on the effects of organic pollutants of different chemical natures (organochlorine, organophosphorous and organotin compounds, naphthalene, formalin, nitrosoguanidine, glyphosate, and metylmercury) on the activity of fish enzymes hydrolyzing basic food components is given. It is shown that the xenobiotics listed above have...
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Дан краткий обзор по действию органических загрязнителей различной химической природы (хлорорганические, фосфорорганические и оловоорганические соединения, нитрозогуанидин, нафталин, формалин, глифосат, метилртуть) на активность ферментов, гидролизующих основные компоненты пищи у рыб. Показано разнонаправленное влияние указанных агентов на активнос...
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В экспериментах in vitro исследована активность, а также температурные и кине= тические характеристики гликозидаз слизистой оболочки и химуса кишечника ле= щей Abramis brama (L.) из участков Рыбинского водохранилища с различной ан= тропогенной нагрузкой. Показано значительное сходство уровня активности и температурного оптимума гликозидаз у леща за...
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Установлено большее накопление ртути в тканях и химусе кишечника рыжих полевок из более влажных биотопов Во-ронежского заповедника. Накопление ртути сопровождалось разнонаправленными изменениями амилолитической активно-сти, активности сахаразы и мальтазы. Активность ферментов химуса с ростом содержания ртути изменялась в большей сте-пени по сравнен...
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The chronic effect (duration of exposure 218 days) of polychlorinated biphenyls (PCBs) and the prolonged effect of the short-term action of chlorophos or of N-methyl-N′-nitro-N-nitrosoguanidine (MNNG) during embryogenesis upon the sensitivity of intestinal glycosidases to Cu and Zn was studied in roach (Rutilus rutilus (L.) underyearlings. The Cu+2...
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The activity, temperature and kinetic characteristics of the intestinal mucosa and cheme glycosidases were investigated in vitro in bream Abramis brama (L.) from parts of the Rybinskoye storage reservoir differing in anthropogenic loading. Considerable similarity was found in the enzymatic activity level and the temperature optimum of glycosidases...
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Different stability of carbohydrases, hydrolyzing polysaccharides in the intestinal mucosa of pike Esox lucius L. and in the whole body of its victim (underyearling of perch Perca fluviatilis L., taken from pike stomach) to separate and combined impacts of temperature (0.10 and 20 °С), рН (5.0, 7.4, 8.3) and heavy metals (copper, zinc and copper +...
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The chronic effects that polychlorinated biphenyls (PCBs) have on the activities of proteinases and carbohydrates in intestinal mucosa and chyme in juvenile roach Rutilus rutilus (L.) have been studied for the first time. Upon consuming food with PCB 50.8 ng/g wet weight for 218 days, the exposition of fingerlings in aquariums with dirt bottoms (co...
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Впервые исследовано хроническое действие полихлорированных бифенилов (ПХБ) на активность протеиназ и карбогидраз слизистой оболочки и химуса кишечника молоди плотвы Rutilus rutilus (L.). Экспозиция сеголетков в аквариумах с грунтом (содержание ПХБ 425.6 нг на 1 г сухой массы) при питании кормом с ПХБ (50.8 нг на 1 г сырой массы) в течение 218 сут с...
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Исследовано in vitro раздельное и совместное действие ионов Cu2 + и Zn2 + в концентрации 0.1–25 мг/л на активность карбогидраз слизистой оболочки кишечника у 11 видов пресноводных рыб, различаю! щихся по типу питания. Амилолитическая активность снижается по мере увеличения концентрации Cu и Zn, величина максимального торможения варьирует от 15 до 4...
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The separate and joint effect of Cu2+ and Zn2+ of 0.1–25 mg l−1 concentrations on the intestine carbohydrase activity were studied in vitro in 11 freshwater bone fishes. The total amylolytic activity of the fish intestinal mucosa decreased simultaneously with an increase in the Cu and Zn concentration. The maximal inhibitory effect varied from 15 t...
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Full-text available
The prolonged effects of short-term action of N-methyl-N′-nitro-N-nitrosoguanidine (MNNG) in low concentrations 3 × 10−7 to 3 × 10−1 mg/l upon roach (Rutilus rutilus) early development have been studied. It was revealed that the treatment resulted in an increase in fish length and weight, in a decrease in total amylolytic and saccharase activities,...

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