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Mechanisms of Low Temperature-Induced Growth Hormone Resistance via TRPA1 Channel Activation in Male Nile Tilapia.
Endocrinology
January 2025
Key Laboratory of Bio-resources and Eco-environment of the Ministry of Education, College of Life Sciences, 610065, Sichuan University, Chengdu, P.R. China.
Low temperatures significantly impact growth in ectothermic vertebrates, though the underlying mechanisms remain poorly understood. This study investigates the role of transient receptor potential ankyrin 1 (TRPA1) channels in mediating low temperature effects on growth performance and growth hormone (GH) resistance in Nile tilapia (Oreochromis niloticus). Prolonged exposure to low temperature (16°C for 35 days) impaired growth performance and induced GH resistance, characterized by elevated serum GH levels and decreased insulin-like growth factor-1 (IGF-1) levels.
View Article and Find Full Text PDFEffects of Insulin-like Growth Factor 1 on the Maintenance of Cell Viability and Osteogenic Differentiation of Gingiva-Derived Mesenchymal Stem Cell Spheroids.
Medicina (Kaunas)
January 2025
Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea.
Insulin-like growth factor-1 (IGF-1) plays a vital role in various cellular processes, including those involving stem cells. This study evaluated the effects of IGF-1 on cell survival, osteogenic differentiation, and mRNA expression in gingiva-derived mesenchymal stem cell spheroids. Using concave microwells, spheroids were generated in the presence of IGF-1 at concentrations of 0, 10, and 100 ng/mL.
View Article and Find Full Text PDFOptimising Age-Specific Insulin Signalling to Slow Down Reproductive Ageing Increases Fitness in Different Nutritional Environments.
Aging Cell
January 2025
School of Biological Sciences, University of East Anglia, Norwich, UK.
The developmental theory of ageing proposes that age-specific decline in the force of natural selection results in suboptimal levels of gene expression in adulthood, leading to functional senescence. This theory explicitly predicts that optimising gene expression in adulthood can ameliorate functional senescence and improve fitness. Reduced insulin/IGF-1 signalling (rIIS) extends the reproductive lifespan of Caenorhabditis elegans at the cost of reduced reproduction.
View Article and Find Full Text PDFEffect of Different Regional Characteristics of Spawning and Growing Sites on Growth and Taste of Pacific Oyster, .
Dev Reprod
December 2024
Department of Fisheries Biology, Pukyong National University, Busan 48513, Korea.
While Pacific oysters are important commercial aquaculture species worldwide, the effect of hormonal regulation and environmental conditions on growth and taste profile have not been fully known. Insulin-like growth factor (IGF) systems are known to play a major role in regulating neuroendocrine functions across various physiological processes and are particularly involved in growth. IGFs expression also is directly related to the nutritional status of vertebrates, however, full mechanism has not been clearly identified in bivalves.
View Article and Find Full Text PDFAcute high-intensity interval exercise is superior to moderate-intensity continuous exercise in enhancing endothelial function and its associated biomarkers in sedentary young individuals: the possible involvement of lactate.
J Exerc Sci Fit
January 2025
Guangdong Provincial Key Laboratory of Physical Activity and Health Promotion, Guangzhou Sport University, Guangzhou, Guangdong, China.
Objectives: Our study investigated the effects of acute high-intensity interval exercise (HIIE) and moderate-intensity continuous exercise (MICE) on endothelial function and its associated biomarkers in sedentary young individuals.
Methods: Fifteen subjects (10M / 5F; 22 ± 2 years; BMI: 23.07 ± 4.
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