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All Journal Formosa Journal of Multidisciplinary Research (FJMR) Journal of Medical Genetics and Clinical Biology (JMGCB) African Multidisciplinary Journal of Sciences and Artificial Intelligence Open Access DRIVERset
Shachi, Kumari
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology Neuroscience Nursing Social Sciences

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TOXICOLOGICAL ASSESSMENT OF COPPER SULPHATE ON CHANNA ORIENTALIS AND HETEROPNEUSTES FOSSILIS: LC50 VALUES AND MORTALITY ANALYSIS Prasad, Nayan K.; Shachi, Kumari; Sahani, Suresh Kumar
Journal of Medical Genetics and Clinical Biology Vol. 1 No. 7 (2024): Journal of Medical Genetics and Clinical Biology
Publisher : PT. Antis International Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61796/jmgcb.v1i7.701

Abstract

The adverse effects of heavy metals, particularly copper sulphate, released from industrial effluents on aquatic life are well-documented. In this study, we determined the LC50 values of copper sulphate for two freshwater air-breathing fish species, Channa orientalis (Bloch) and Heteropneustes fossilis (Bloch). The LC50 values for Channa orientalis were determined to be 33 ppm at 24 hours, 32 ppm at 48 hours, 21 ppm at 72 hours, and 7.5 ppm at 96 hours. For Heteropneustes fossilis, the corresponding LC50 values were 15 ppm at 24 hours, 13 ppm at 48 hours, 9.5 ppm at 72 hours, and 5 ppm at 96 hours. We observed a significant increase in mucus secretion at higher concentrations of copper sulphate as compared to lower concentrations. The potential mechanisms of fish mortality under these conditions are also discussed in detail
Biochemical Adaptations to Prolonged Starvation in Freshwater Catfish: Gonadal Glycogen Dynamics Sahani, Suresh Kumar; Prasad, Nayan K.; Shachi, Kumari
Formosa Journal of Multidisciplinary Research Vol. 3 No. 7 (2024): July 2024
Publisher : PT FORMOSA CENDEKIA GLOBAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55927/fjmr.v3i7.9714

Abstract

Starvation significantly impacts fish species, affecting various organs. This study examines the effect of prolonged starvation on glycogen content in the gonadal tissue of Clarias batrachus, a freshwater catfish. Using a calorimetric method, glycogen levels in gonadal tissues were measured over a 40-day period at 10-day intervals. Results showed a gradual decline in glycogen content, likely due to increased gluconeogenesis and heightened rates of deamination. Male specimens exhibited a more pronounced glycogen depletion compared to females. Initially, the reduction was minimal up to 20 days, followed by a sharp decline, resulting in an 80% reduction by day 40. These findings highlight significant metabolic adaptations in Clarias batrachus during prolonged starvation.
Survival Mechanisms of Clarias batrachus: Glycogen Utilization During Long-Term Starvation Prasad, Nayan K.; Shachi, Kumari; Kumar, Sanjeev; Sahani, Suresh Kumar
African Multidisciplinary Journal of Sciences and Artificial Intelligence Vol 1 No 2 (2024): African Multidisciplinary Journal of Sciences and Artificial Intelligence
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/amjsai.v1i2.3978

Abstract

This study aims to analyze the impact of extended food deprivation on glucose storage in different tissues and organs of the freshwater air-breathing catfish Clarias batrachus. The glycogen reserves in the brain, gonads, liver, muscles, and blood of both the male and female Clarias batrachus were estimated after forty days of starvation. The total glycogen was determined by a modification of the colorimetric method of Krishnaswami & Srinivasan in collaboration with Kemp and Heijningen. Even though they had to endure the severe deprivation of food, Clarias batrachus survived during the entire period of experimentation. Nutrient deprivation due to fasting gradually depletes glycogen reserves to a minimal level in all organs. This is partly caused by increased transamination and deamination processes, partly by the inhibition of RNA synthesis, and perhaps becomes increasingly significant during long-term starvation through gluconeogenesis. Importantly, during the first 20 days of starvation, the concentration of glycogen in the brain did not change noticeably in contrast to the liver, muscles, and gonads, which decreased glycogen stores significantly. The fall in blood glucose levels followed a decline in liver and muscle glycogen stores. Glycogen concentration in the liver was higher than in other solid tissues such as muscle, brain, and gonads. Females were observed to have higher glucose stores in all tissues than males when expressed per unit body mass in normal and starvation conditions. After forty days of starvation, the most substantial decrease in glycogen content was observed in the testes, while the brain exhibited the minimum decrease.
Survival Mechanisms of Clarias batrachus: Glycogen Utilization During Long-Term Starvation Prasad, Nayan K.; Shachi, Kumari; Kumar, Sanjeev; Sahani, Suresh Kumar
African Multidisciplinary Journal of Sciences and Artificial Intelligence Vol 1 No 2 (2024): African Multidisciplinary Journal of Sciences and Artificial Intelligence
Publisher : Darul Yasin Al Sys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/amjsai.v1i2.3978

Abstract

This study aims to analyze the impact of extended food deprivation on glucose storage in different tissues and organs of the freshwater air-breathing catfish Clarias batrachus. The glycogen reserves in the brain, gonads, liver, muscles, and blood of both the male and female Clarias batrachus were estimated after forty days of starvation. The total glycogen was determined by a modification of the colorimetric method of Krishnaswami & Srinivasan in collaboration with Kemp and Heijningen. Even though they had to endure the severe deprivation of food, Clarias batrachus survived during the entire period of experimentation. Nutrient deprivation due to fasting gradually depletes glycogen reserves to a minimal level in all organs. This is partly caused by increased transamination and deamination processes, partly by the inhibition of RNA synthesis, and perhaps becomes increasingly significant during long-term starvation through gluconeogenesis. Importantly, during the first 20 days of starvation, the concentration of glycogen in the brain did not change noticeably in contrast to the liver, muscles, and gonads, which decreased glycogen stores significantly. The fall in blood glucose levels followed a decline in liver and muscle glycogen stores. Glycogen concentration in the liver was higher than in other solid tissues such as muscle, brain, and gonads. Females were observed to have higher glucose stores in all tissues than males when expressed per unit body mass in normal and starvation conditions. After forty days of starvation, the most substantial decrease in glycogen content was observed in the testes, while the brain exhibited the minimum decrease.
Co-Authors Kumar, Sanjeev Prasad, Nayan K. Sahani, Suresh Kumar