| Autor: |
Tomaszewska E; Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-950 Lublin, Poland., Wojtysiak D; Department of Animal Genetics, Breeding and Ethology, Faculty of Animal Sciences, University of Agriculture in Kraków, 30-059 Kraków, Poland., Grzegorzewska A; Department of Animal Physiology and Endocrinology, University of Agriculture in Kraków, 30-059 Kraków, Poland., Świątkiewicz M; Department of Animal Nutrition and Feed Science, National Research Institute of Animal Production, 32-083 Balice, Poland., Donaldson J; School of Physiology, Faculty of Health Sciences, University of the Witwatersrand, Parktown, Johannesburg 2193, South Africa., Arciszewski MB; Department of Animal Anatomy and Histology, University of Life Sciences in Lublin, 20-950 Lublin, Poland., Dresler S; Department of Analytical Chemistry, Medical University of Lublin, 20-093 Lublin, Poland.; Department of Plant Physiology and Biophysics, Faculty of Biology and Biotechnology, Maria Curie-Skłodowska University, 20-033 Lublin, Poland., Puzio I; Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-950 Lublin, Poland., Szymańczyk S; Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, 20-950 Lublin, Poland., Dobrowolski P; Department of Functional Anatomy and Cytobiology, Faculty of Biology and Biotechnology, Maria Curie-Sklodowska University, 20-033 Lublin, Poland., Bonior J; Department of Medical Physiology, Chair of Biomedical Sciences, Institute of Physiotherapy, Faculty of Health Sciences, Jagiellonian University Medical College, 31-501 Kraków, Poland., Mielnik-Błaszczak M; Chair and Department of Developmental Dentistry, Medical University of Lublin, 20-081 Lublin, Poland., Kuc D; Chair and Department of Developmental Dentistry, Medical University of Lublin, 20-081 Lublin, Poland., Muszyński S; Department of Biophysics, Faculty of Environmental Biology, University of Life Sciences in Lublin, 20-950 Lublin, Poland. |
| Abstrakt: |
Chronic pancreatitis (CP) in young individuals may lead to disease-related secondary sarcopenia (SSARC), characterized by muscle loss and systemic inflammation. In this study, CP was induced in young pigs, and serum levels of key hormones, muscle fiber diameters in various muscles, and the mRNA expression of genes related to oxidative stress and programmed cell death were assessed. A decrease in muscle fiber diameters was observed in SSARC pigs, particularly in the longissimus and diaphragm muscles. Hormonal analysis revealed alterations in dehydroepiandrosterone, testosterone, oxytocin, myostatin, and cortisol levels, indicating a distinct hormonal response in SSARC pigs compared to controls. Oxytocin levels in SSARC pigs were significantly lower and myostatin levels higher. Additionally, changes in the expression of catalase ( CAT ), caspase 8 (CASP8), B-cell lymphoma 2 ( BCL2 ), and BCL2-associated X protein ( BAX ) mRNA suggested a downregulation of oxidative stress response and apoptosis regulation. A reduced BAX / BCL2 ratio in SSARC pigs implied potential caspase-independent cell death pathways. The findings highlight the complex interplay between hormonal changes and muscle degradation in SSARC, underscoring the need for further research into the apoptotic and inflammatory pathways involved in muscle changes due to chronic organ inflammation in young individuals. |
