Temporal relationship between the daily profiles of gut melatonin, oxidative status and major digestive enzymes in carp<i>Catla catla</i>

Pal, Palash Kumar; Hasan, Kazi Nurul; Maitra, Saumen Kumar

doi:10.1080/09291016.2016.1191697

Cited by 22 publications

(21 citation statements)

References 43 publications

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“…Our observations in this study are consistent with the previous report that exogenous melatonin can prevent obesity in mice (Xu et al, 2017 ), reduces fat accumulation in vivo , and accelerates lipid metabolism. There was also a reported positive correlation between the level of melatonin and digestive enzyme activity, and digestive enzymes and gut melatonin exhibited an identical pattern of daily rhythms in Catla catla (Pal et al, 2016 ). Another study demonstrated that melatonin plays an important role in promoting intestinal digestion in C. catla (Maitra et al, 2015 ).…”

Section: Discussionmentioning

confidence: 95%

Melatonin Promotes Cheliped Regeneration, Digestive Enzyme Function, and Immunity Following Autotomy in the Chinese Mitten Crab, Eriocheir sinensis

Zhang

Yang

et al. 2018

Front. Physiol.

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In the pond culture of juvenile Eriocheir sinensis, a high limb-impairment rate seriously affects the culture success. Therefore, it is particularly important to artificially promote limb regeneration. This study evaluated the effects of melatonin on cheliped regeneration, digestive ability, and immunity, as well as its relationship with the eyestalk. It was found that the injection of melatonin significantly increased the limb regeneration rate compared with the saline group (P < 0.05). The qRT-PCR results of growth-related genes showed that the level of EcR-mRNA (ecdysteroid receptor) and Chi-mRNA (chitinase) expression was significantly increased following the melatonin injection, while the expression of MIH-mRNA (molt-inhibiting hormone) was significantly decreased (P < 0.05). Melatonin significantly increased lipase activity (P < 0.05). We observed that the survival rates of limb-impaired and unilateral eyestalk-ablated crabs were substantially improved following melatonin treatment, whereas the survival of the unilateral eyestalk-ablated crabs was significantly decreased compared with the control group (P < 0.05). Furthermore, the results of serum immune and antioxidant capacity revealed that melatonin significantly increased the total hemocyte counts (THC), hemocyanin content, total antioxidant capacity (T-AOC), acid phosphatase (ACP), and glutathione peroxidase activity (GSH-Px), whereas the immune-related parameters were significantly decreased in eyestalk-ablated crabs (P < 0.05). Therefore, these findings indicate that melatonin exerts a protective effect on organism injury, which could promote limb regeneration by up-regulating the expression of growth-related genes, improve digestive enzyme activity, and strengthen the immune response, particularly antioxidant capacity.

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Section: Discussionmentioning

confidence: 95%

Melatonin Promotes Cheliped Regeneration, Digestive Enzyme Function, and Immunity Following Autotomy in the Chinese Mitten Crab, Eriocheir sinensis

Zhang

Yang

et al. 2018

Front. Physiol.

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“…As mentioned above, GI tract is always under the endogenous and exogenous insults (23,25,26,81). For example, the endogenously produced adrenaline, due to its rapid pro-oxidant and auto-oxidation properties (82)(83)(84), promotes oxidative stress and proinflammatory cytokines including necrosis factor-kappa beta (NF-kβ), tumour necrosis factor-α (TNF-α), interleukin-1 beta (IL-1β) and interleukin-6 (IL6) in the stomach, duodenum and colon tissues (25).…”

Section: Gastrointestinal Tract Associated Disordersmentioning

confidence: 99%

Functional interplay of melatonin in the bile duct and gastrointestinal tract to mitigate disease development: An overview

2021

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Prevalence of bile duct and gastrointestinal (GI) tract associated diseases is increasing globally. Commonly, the bile duct epithelial cell (cholangiocytes) malfunction and its uncontrolled proliferation often cause liver fibrosis and tumorigenesis, particularly the cholangiocarcinoma. Specifically, GI tract is constantly under diverse endogenous and exogenous stressors which interrupt GI physiological functions and promote inflammation, tissue damage, ulceration, gastrointestinal bleeding, gastroesophageal reflux disease (GERD), irritable bowel disease (IBD) and gastritis. On the other hand, melatonin exhibits important functions in both cholangiocyte and GI tract. The abundance of melatonin generated in the GI tract and its widely distributed receptors facilitate its protective effects in GI tissues. In the most of the cases, the disease progression in GI tract, particularly in bile duct, is associated with endogenous melatonergic system suppression. Therefore, to increase the endogenous melatonin production appears a suitable strategy to retard the disease development in these tissues. Melatonin administration or, exposure to prolonged darkness not only reverse the detrimental biochemical alterations, but also inhibit cholangiocyte proliferation as well as ulceration in the GI tract. Thus, use of melatonin as a natural therapeutic agent is beneficial and exhibits advantages over other contemporary drugs in prevention and treatment of bile duct and gastrointestinal tract associated diseases.

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“…In fish, AANAT2 in particular is responsible for the oscillating pattern of melatonin synthesis that peaks in the dark (Falcón et al, 2011). Indeed, light-rhythm-dependent changes in melatonin level have been found in the plasma, gut or pineal gland of many teleost species in vivo and in vitro (Choi et al, 2016;Huang et al, 2010;Kezuka et al, 1988;Pal et al, 2016;Strand et al, 2008). The circadian clock establishes rhythms of melatonin production, but melatonin rhythms are highly species dependentspecies with different life histories and activity rhythms can differ in the regulation of melatonin synthesis and in its effects on behaviour (Iigo et al, 2007;López-Olmeda et al, 2006).…”

Section: Endocrine Control Of Circadian Rhythms Influences Experimentmentioning

confidence: 99%

“…ARNTL expression is also affected by another transcriptional loop, including genes encoding the proteins RAR-related orphan receptor A (RORA) and nuclear receptor subfamily 1 group D member 1 (NR1D1) (not shown). rhythms and changes in melatonin levels have been implicated in variations in the levels of oxygen free radicals (Choi et al, 2016;Pal et al, 2016). The finding that melatonin (and many hormones of the gastrointestinal tract) affects redox balance indicates that there can be pronounced interaction between endocrine functions, their rhythmicity and pollutants that cause oxidative stress.…”

Section: Endocrine Control Of Circadian Rhythms Influences Experimentmentioning

confidence: 99%

Circadian rhythms and environmental disturbances – underexplored interactions

Prokkola

Nikinmaa

2018

Journal of Experimental Biology

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Biological rhythms control the life of virtually all organisms, impacting numerous aspects ranging from subcellular processes to behaviour. Many studies have shown that changes in abiotic environmental conditions can disturb or entrain circadian (∼24 h) rhythms. These expected changes are so large that they could impose risks to the long-term viability of populations. Climate change is a major global stressor affecting the fitness of animals, partially because it challenges the adaptive associations between endogenous clocks and temperature - consequently, one can posit that a large-scale natural experiment on the plasticity of rhythm-temperature interactions is underway. Further risks are posed by chemical pollution and the depletion of oxygen levels in aquatic environments. Here, we focused our attention on fish, which are at heightened risk of being affected by human influence and are adapted to diverse environments showing predictable changes in light conditions, oxygen saturation and temperature. The examined literature to date suggests an abundance of mechanisms that can lead to interactions between responses to hypoxia, pollutants or pathogens and regulation of endogenous rhythms, but also reveals gaps in our understanding of the plasticity of endogenous rhythms in fish and in how these interactions may be disturbed by human influence and affect natural populations. Here, we summarize research on the molecular mechanisms behind environment-clock interactions as they relate to oxygen variability, temperature and responses to pollutants, and propose ways to address these interactions more conclusively in future studies.

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Temporal relationship between the daily profiles of gut melatonin, oxidative status and major digestive enzymes in carpCatla catla

Cited by 22 publications

References 43 publications

Melatonin Promotes Cheliped Regeneration, Digestive Enzyme Function, and Immunity Following Autotomy in the Chinese Mitten Crab, Eriocheir sinensis

Melatonin Promotes Cheliped Regeneration, Digestive Enzyme Function, and Immunity Following Autotomy in the Chinese Mitten Crab, Eriocheir sinensis

Functional interplay of melatonin in the bile duct and gastrointestinal tract to mitigate disease development: An overview

Circadian rhythms and environmental disturbances – underexplored interactions

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