Stefan Pierzynowski

Lund University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Björn Weström

Lund University

R. Zabielski

Warsaw University of Life Sciences

Jarosław Woliński

Polish Academy of Sciences

Olena Prykhodko

Lund University

Kateryna Pierzynowska

Kielanowski Institute of Animal Physiology and Nutrition

Kateryna Goncharova

Lund University

J.L. Valverde Piedra

University of Life Sciences in Lublin

Rafał Filip

Rzeszów University

D Kruszewska

John Paul II Catholic University of Lublin

J. Svendsen

Swedish University of Agricultural Sciences

Cooperative Institutions

Lund University

120

Polish Academy of Sciences

Warsaw University of Life Sciences

Kielanowski Institute of Animal Physiology and Nutrition

University of Life Sciences in Lublin

University of Copenhagen

Medical University of Lublin

Instytut Medycyny Wsi im. Witolda Chodźki

University of Warsaw

University of Agriculture in Krakow

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

THE DEPENDENCE OF EXOCRINE PANCREATIC SECRETION ON INSULIN IN SHEEP

Quarterly Journal of Experimental Physiology (1984)

Stefan Pierzynowski W. Barej

Exocrine pancreatic secretion, blood insulin, glucose and free fatty acid concentrations were measured on days 1, 4 and 5 of a 5 d experimental period. Sheep were treated with alloxan (day 2) and insulin (day 5). The volume of pancreatic juice decreased markedly in the diabetic state and returned to the initial value after insulin treatment. The daily secretion of lipase and amylase decreased during development of diabetes. Injection of insulin restored the secretion of lipase but not amylase. It is suggested that insulin potentiates the stimulatory action of the vagus nerve on the pancreatic secretion of sheep.

Alloxan

10.1113/expphysiol.1984.sp002793

Cite

Citations (28)

Characteristics of pancreatic exocrine secretion in herbivores.

Emiko Harada Tsutomu Takeuchi Stefan Pierzynowski R. Zabielski

Exocrine pancreas

Source

Cite

Citations (2)

Influence of dexamethasone and alpha-ketoglutarate administration to pregnant sows on the level of some hormones in the blood plasma of newborn un-suckled piglets

E. Śliwa Tatara Stefan Pierzynowski T. Studziński

The aim of the study was to establish the influence of dexamethasone and alpha-ketoglutarate administration to pregnant sows on the prenatal programming of the growth hormone level, cortisol, insulin and IGF-I in the blood serum of newborn piglets assessed just after their birth and prior to suckling. The foetal development is dependent on and determined by hormones such as glucocorticoids as well as nutrient supply through the sow, especially from the digestive tract. All these factors determine pre- and neonatal growth. The experiment was conducted over the final 24 days of pregnancy in sows treated i.m. with dexamethasone at a dose of 3 mg per sow every second day or alpha-ketoglutarate administered orally daily at a dose of 0.4 g/kg b.w. The blood samples were collected from the subclavian vein of un-suckled piglets immediately following their birth and were centrifuged straight away and the serum stored at -25 degrees C until further analysis. Hormone concentrations were determined using ELISA kit. The obtained results indicate that maternal administration of dexamethasone increased the level of cortisol while alpha-ketoglutarate increased the levels of cortisol and IGF I whereas simultaneous administration of dexamethasone and AKG significantly increased the growth hormone. These results of separate or simultaneous maternal administration of dexamethasone and alpha-ketogluta rate during the last 24 days of pregnancy indicated the activation of different mechanisms and different prenatal effects on the levels of cortisol, growth hormone and IGF I in serum assessed immediately following the birth of the piglets. (Less)

Cite

Citations (2)

Relation Between Growth And Bone Collagen Content In Young Pigs; Effects Of Dietary Alpha-Ketoglutarate Supplementation

Bulletin of the Veterinary Institute in Pulawy (2011)

S Kowalik Agata Wawrzyniak Tomasz Piersiak Stefan Pierzynowski

The aim of this study was to determine the effect of dietary supplementation with alpha-ketoglutarate (AKG) sodium salt on growth rate in relation to bone collagen formation during the first 70 d of postnatal life in piglets. The results show that dietary AKG supplementation increased body weight of the experimental piglets in comparison to the controls, especially between 21(st) and 56(th) d of life (P <= 0.01). Moreover, the area of collagen trabeculae slightly increased in experimental age sub-groups and reached the highest differences between 14(th) (P <= 0.01) and 70(th) d of piglets life (P <= 0.001). In contrast, the highest values for the number of collagen trabeculae were observed in piglets at 3(rd) d of age, regardless of treatment group. The positive effect of AKG supplementation on the number of collagen trabeculae was found between 3(rd) and 35(th) d of life, with statistical confirmation at days 14, 35, and 56 (P <= 0.01). The data-lines of the bone strain showed similar course during the whole experimental period, except 56(th) d of life, when the experimental piglets reached statistically significant, higher values in comparison to the controls (P <= 0.05). Similarly, the blood plasma osteocalcin reached the highest concentration in experimental sub-groups from 21(st) d of life in comparison to the controls, with statistical significance at the age of 56 (P <= 0.05). These data indicate that dietary AKG supplementation effectively stimulated collagen synthesis in young growing piglets, both before and after weaning.

Source

Cite

Citations (2)

Influence of alpha-ketoglutarate on bone mineral density of the femur in piglets

S Kowalik RS Filip E. Śliwa Marcin R. Tatara Stefan Pierzynowski

The aim of this study was to determine the influence of daily oral administration of alpha-ketoglutarate (AKG) on bone mineral density of the femur and concentration of 17-beta-oestradiol in blood plasma during 70 d of postnatal life in piglets. All the animals were kept under standard rearing conditions. AKG was administered orally from the 1(st) d of life, while the control piglets were treated in the same way and time with physiological saline. The experimental and control groups were assigned to 6 age subgroups: 3, 14, 21, 35, 56 and 70 d of life. The animals from both groups were euthanised, then bone samples were collected and frozen at -25 degrees C until further analyses. Using dual-energy x-ray absorptiometry (DEXA method) bone mineral density of the femora was estimated. Additionally, 17-beta-oestradiol concentration in blood plasma was assayed using RIA-test. The obtained results indicate positive influence of enteral AKG administration on bone mineral density of the femur in piglets. Moreover, AKG increased the level of 17-beta-oestradiol in blood plasma in post-weaned piglets. (Less)

Alpha ketoglutarate

Physiological saline

Enteral administration

Source

Cite

Citations (10)

Wpływ alfa-ketoglutaranu (AKG) na behawior starzejących się myszy laboratoryjnych

Roczniki Naukowe Polskiego Towarzystwa Zootechnicznego (2018)

Tomasz Niemiec Klara Zglińska Wiesław Świderek Weronika Górecka Magdalena Matusiewicz

Source

Cite

Citations (0)

Enhanced absorption of long-chain polyunsaturated fatty acids following consumption of functional milk formula, pre-digested with immobilized lipase ex vivo , in an exocrine pancreatic insufficient (EPI) pig model

Journal of Functional Foods (2017)

Kateryna Goncharova Siarhei Kirko Danica Grujić Marek Kardas Elżbieta Grochowska‐Niedworok

Digestion

Long chain

Ex vivo

10.1016/j.jff.2017.05.008

Cite

Citations (10)

1025 Liprotamase, a Microbial Enzyme Therapy, Reveresed Impaired Growth in a Model of Cystic Fibrosis: Pigs With Total Exocrine Pancreatic Insufficiency (EPI Pigs)

Gastroenterology (2010)

Danica Grujić J.L. Valverde Piedra Sylwia Szymańczyk Stefan Pierzynowski

Exocrine pancreatic insufficiency

Ivacaftor

Pancreatic Disease

10.1016/s0016-5085(10)60684-1

Cite

Citations (1)

Changes in the Levels of Neurospecific Proteins and in Behavioral Phenomena in Rats with Hepatic Encephalopathy

Neurophysiology (2011)

Г. А. Ушакова О. З. Фоменко Stefan Pierzynowski

Hepatic Encephalopathy

Chronic Stress

10.1007/s11062-011-9206-4

Cite

Citations (1)

Effect of lactic acid supplementation on pancreatic secretion in pigs after weaning

Journal of Animal and Feed Sciences (1998)

M.‐J. Thaela Mogens H. Jensen Stefan Pierzynowski Stefan Jakob Birger Boutrup Jensen

1. Effect of dietary carbadox or formic acid and fibre level on ileal and faecal nutrient digestibility and microbial metabolite concentrations in ileal digesta of the pig K Partanen, T Jalava, J Valaja, S Perttilä, H Siljander-Rasi, H Lindeberg Animal Feed Science and Technology CrossRef

10.22358/jafs/69972/1998

Cite

Citations (34)