Background: Studies conducted on human cell culture models have demonstrated that collagen-derived peptides can exert a beneficial effect in medicine. However, all these studies were conducted using animal collagen samples, most often originating from bovine or porcine skin. Currently attempts are being made to replace animal collagen with fish collagen.
Objectives: The aim of the study was to compare the effect of silver carp skin-derived peptide extract on the transcriptional activities of human VEGF and hsp70.1 gene promoters inserted into the plasmids with secreted alkaline phosphatase as a reporter gene.
Material And Methods: Changes in the activity of the promoters were investigated using a HEK293FT cell line transfected with pVEGF-SEAP or pHsp70-SEAP. The cells were cultured in dishes containing peptides separated using reverse-phase high performance liquid chromatography.
Results: The study demonstrated that the silver carp skin-derived peptide extract exerts both an inhibitory effect on the VEGF gene promoter and activating effect on the hsp70.1 gene promoter. Higher biological activity was recorded in the case of a freshly prepared peptide extract compared to one stored at 4°C for three months.
Conclusions: The silver carp skin-derived collagen peptides influence VEGF and hsp70.1 gene promoters' transcriptional activity.
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http://dx.doi.org/10.17219/acem/38786 | DOI Listing |
Mar Environ Res
January 2025
ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Departamento de Estudos de Populações, Laboratório de Ecotoxicologia e Ecologia, (ECOTOX), Rua de Jorge Viterbo Ferreira, 228, 4050-313, Porto, Portugal; CIIMAR / CIMAR-LA - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Research Team of Aquatic Ecotoxicology and One Health, and Research Team of Contaminant Pathways in Marine Environment, Terminal de Cruzeiros do Porto de Leixões, 4450-208, Matosinhos, Portugal. Electronic address:
Potential effects of microplastics (MP, plastic particles <5 mm) on the levels of multiple stress biomarkers were investigated in wild fish populations of Cyprinus carpio, Mugil cephalus, Platichthys flesus captured in the Minho River estuary located in the Iberian Peninsula. Specimens were collected in March and September 2018, corresponding to the end of winter and summer, respectively. Based on the concentration of MP determined by FT-IR analysis and morphological inspection, fishes from each species were divided into two groups: ≤0.
View Article and Find Full Text PDFJ Vet Pharmacol Ther
January 2025
Aquatic Animal Health and Environment Division, Central Institute of Brackishwater Aquaculture (CIBA), Chennai, India.
Parasitic infestations are one of the most economically important disease conditions in the Indian major carps including mrigal, Cirrhinus mrigala. This study reported the biosafety and tissue withdrawal of in-feed administered antiparasitic drug, emamectin benzoate (EMB). To evaluate the biosafety of the drug, behaviour, growth and tissue changes in Cirrhinus mrigala was recorded the following in-feed administration of EMB up to 10 times (T1-50 μg kg fish day (1×), T2-125 μg kg fish day (2.
View Article and Find Full Text PDFFood Sci Technol Int
January 2025
Department of Food Hygiene, Science and Research Branch, Islamic Azad University, Tehran, Iran.
In the present study, the effects of psyllium gum/sodium-alginate (PG/SA) coatings incorporated with essential oil (HEO) and copper oxide nanoparticles (CuO NPs) on various properties of silver carp fillets were investigated and monitored over 15 days of chilled storage condition (4 °C ± 1). The control sample (uncoated), PG/SA with 3% CuO NPs, PG/SA with 1% HEO, and PG/SA with 3% CuO NPs and 1% HEO (PG/SA-HC) were examined through chemical, microbial, and sensory analysis. The results revealed that the PG/SA-HC sample after 15 days of refrigeration demonstrated a significantly lower value than the others for total viable counts (8.
View Article and Find Full Text PDFFish Shellfish Immunol
January 2025
College of Animal Science and Technology, Jilin Agriculture Science and Technology University, Jilin City, China. Electronic address:
Emamectin benzoate (EMB) is an antibiotic insecticide pesticide modified from avermectin. In the current study, we performed an in-depth investigation of the protective effects of epicatechin on EMB-induced liver injury in common carps. The carps were cultured in an aquatic environment containing 2.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
School of Food Science and Engineering, Key Laboratory of Tropical and Vegetables Quality and Safety for State Market Regulation, Hainan University, Haikou 570228, China.
Biogenic amines (BAs), produced in fish and seafood due to microbial contamination, pose significant health risks. This study introduces a novel ratiometric fluorescent probe, synthesized by integrating rhodamine 6G(R6G) and gold nanoparticles (AuNCs), for the sensitive and specific detection of BAs. The probe operates on the principle of BAs hydrolysis, catalyzed by diamine oxidase, to produce hydrogen peroxide (HO), which selectively quenches the fluorescence of AuNCs at 620 nm, while the fluorescence of R6Gat 533 nm remains unaffected.
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