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This study was aimed at profiling plasma proteins of healthy 8-month-old African catfish. Plasma proteins within the isoelectric point ranging from 3.0 to 10.0 were separated by high resolution two-dimensional electrophoresis (2-DE). In total, 8 different gene products were identified with a matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) mass spectrometer. These included carrier proteins (fatty acid-binding protein 1, metallothionein, mitoferrin-2), a structural protein (vimentin), proteins involved in the regulation of transcription (thyroid hormone receptor alpha A, endothelial differentiation-related factor 1 homolog), and others (B-cell lymphoma 6 protein homolog, FGFR1 oncogene partner 2 homolog). This is the first study attempting to map the plasma proteome of Clarias gariepinus. Owing to the lack of information concerning catfish protein sequences in the relevant databases, protein spots were identified by matching peptide data to interspecies homology. The results of this preliminary study may encourage other authors to undertake further research on the plasma proteome of the African catfish.
Disturbance of the antioxidative-oxidative balance is a predisposing factor in the development of a variety of diseases. Microelements, including zinc and copper, are components of active enzyme regions participating in anti-oxidative systems. Patients with malabsorption syndrome may suffer from diseases related to the chronic deficiency of micro- and macroelements and vitamins, but also experience health problems due to an impaired antioxidative plasma defence, i.e. illnesses caused by oxidative stress. The aim of the study was to assess zinc and copper concentrations as well as the total antioxidant capacity of blood plasma in 33 patients hospitalized in the Department of Internal Medicine, Metabolic Diseases and Dietetics, presenting symptoms of intestinal malabsorption such as weight loss, abdominal pain and diarrhoea. Blood donors made up the control group. Statistically significantly lower concentrations of zinc and copper were found in the study group as compared to the control group for women and men together as well as for women and for men separately (p < 0.05). A significantly lower FRAP (Ferric Reducing Ability of Plasma) value as a measure of blood plasma the total antioxidative capacity was found in the study group of men in comparison with men from the control group (p < 0.05). Patients showed deficiencies of the two microelements despite normal values of BMI (Body Mass Index) and laboratory parameters such as haemoglobin, protein, albumin and iron concentrations. Regardless of the nutritional state assessment, patients with malabsorption syndrome should receive adequate supplementation of vitamins and microelements.
The immunological, haematological and biochemical analyses of blood plasma in bitches with 50 days lasting induced zearalenone micotoxicosis were carried out. It can be indirectly suggested that the inhibition of the humoral reaction of the organism, stimulation of detoxification effect in the liver and decreased cellular answer took place.
Rats were subjected to different running trainings on a treadmill for 3 weeks, including continuous endurance and intermittent exercises at speed intensity of 10,22 and 30 m/min (°15), respectively. On the last day of the training period, the animals were dosed with Nw-nitro-L-arginine methyl ester, L-NAME (30 mg/kg b.w.), and they were further subjected to exhaustive running exercise (22 m/min; °15). Studies showed that inhibition of nitric oxide synthase (NOS) with L-NAME mitigated pro- and anti-oxidative (TB/TA) balance in the blood plasma of rats subjected to exhaustive exercise. Intermittent training before the exhaustive exercise enhanced L-NAME-induced effects on TB/TA levels in rats, but it was not observed in continuous endurance trainings
The principal aim of this study was to modify the method of using starter culture in the production of some raw sausages to improve their quality. The sausages ("Polish Salami") were manufactured using significant amount of blood plasma proteins as a substitute for meat protein (up to 20%). Preliminary condensed porcine blood plasma (with protein content of ca 20%), containing 2% of NaCl, 2% of lactose and 1% of glucose was incubated with 5% addition of microbial cultures mixture (Lb.brevis, Lb.casei, Str.lactis, St.cremoris, Candide kefyr) at 28(C for 24 hours. The initial microbiological modification of blood plasma resulted in a better distribution of high active micro-organisms in whole mass of raw material and, as a result, in improving the sensoric properties of final products. A higher content of volatile low fatty acids (30-60%, depending on the level of blood plasma addition) as result of more intensive fermentation process was observed.
The aim of this study was to compare changes in epinephrine (E), norepinephrine (NE) and dopamine (DA) levels in blood plasma of two racehorses breeds: Arabian and Thoroughbred during moderate intensity exercise performed in the same conditions. The increase in plasma E level just after exercise was higher in Thoroughbreds than in Arabians. During the whole test, the Arabians showed the higher levels of NE and DA as compared to those found in Thoroughbreds.
Bone fractures, especially when treated surgically, are connected with changes in the homeostasis of the elements of which bone compounds consist, as well as the ones which participate in controlling processes. Such changes influence both the fracture itself and the operative procedure. For successful treatment of broken bones, it can be crucial to bring the homeostasis of bioelements back to the normal state. Thus, the aim of this work has been to determine magnesium and calcium concentrations in plasma from patients with fractures of long bones, and to analyze changes in the examined elements depending on the time after the operative procedure, injury and patient’s age. The research was conducted on the blood of patients: 1) with long bone fractures treated surgically, 2) after a limb amputation because of a fracture or injury, 3) with long bone fractures and with multiorgan injury. With respect to the patients’ age, there were 3 groups: 1) patients aged 18-40 years, 2) patients aged 41-60 years, 3) patients older than 60 years. In the postoperative period, the patients were on a strict postoperative diet, receiving only i.v. 0.9% NaCl and 5% glucose solutions. Blood was taken from patients first directly after admittance to hospital and next on the first, third, fifth and seventh day after an operative procedure. Plasma calcium and magnesium concentrations were determined by the method of emission spectrometry with induction plasma (ICP-OES). The results were worked out statistically. The differences p<0.05 were taken into consideration as statistically significant. The research showed that in the blood plasma from patients with long bone fractures treated surgically, there were noticeable decreases of calcium and magnesium concentrations mainly on the first, third and fifth postoperative day. These changes depended on the extend of an operative procedure, but did not depend on the patients’ age. However, with respect to magnesium, its statistically significant decrease was noticed in the group of oldest patients. In the postoperative period, it is especially important to pay attention to calcium and magnesium concentrations, and for patients over 60 years of age magnesium supplementation is necessary. Maintenance of macronutrient homeostasis in an organism can be crucial for the patient’s convalescence process.
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Luminal CCK and its neuronal action on exocrine pancreatic secretion

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Gut regulatory peptides are produced by mucosal endocrine cells and released both into the circulation as well as into the gut lumen. Following stimulation the distribution between the circulation and gut lumen changes in favor of the gut lumen. In the blood plasma, the biological half-life of gut regulatory peptides is counted in single minutes due to high aminopeptidase activity and liver extraction. In the gut lumen, however, regulatory peptides retain their biological activity much longer, especially in newborn and young animals. A series of studies was performed in neonatal calves and pigs to explore the role of luminal cholecystokinin (CCK) on the regulation of exocrine pancreatic secretion. In anaesthetized neonatal calves, CCK was secreted into the duodenal lumen, and electrical vagal stimulation increased CCK release into the duodenal lumen but not into the circulating blood. In conscious calves, luminal CCK-8 stimulated pancreatic protein secretion by a neurohormonal mechanism dependent on a duodenal mucosal CCK1 receptor and vagal nerve activity. Immunocytochemistry pointed to an association of mucosal CCK1 and CCK2 receptors with neuronal components in the small intestine of neonatal calves. Experiments in calves and pigs with CCK-8 infusions into the duodenal branches of the right gastroepiploic artery confirmed the results of luminal CCK-8 and questioned the physiological relevance of a direct mechanism of CCK on the pancreatic acini.
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