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Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society

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https://www.readbyqxmd.com/read/29151081/association-between-standard-laboratory-and-functional-tests-of-coagulation-in-dilutional-coagulopathy-an-in-vitro-study
#1
L J Krzych, P F Czempik
Standard laboratory tests (SLTs) of coagulation are in common use in clinical practice. We aimed to determine the association between SLTs and functional tests of coagulation in blood samples diluted with balanced crystalloid and colloid solutions in an ex vivo setting. The study group comprised 32 healthy young male volunteers. Whole blood samples were diluted at a 4:1 ratio with balanced crystalloid (Plasmalyte®) and two balanced colloids, 6% hydroxyethyl starch 130/0.4 (Volulyte®) and succinylated gelatin (Geloplasma®)...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151080/changes-in-u937-cell-viability-induced-by-stress-factors-possible-role-of-calmodulin
#2
K K Wojcik-Piotrowicz, J Kaszuba-Zwoinska, E Rokita, B Nowak, P Thor
Current studies were aimed to elucidate influence of magnetic field (MF) stimulation on cell viability and its effect on expression of calmodulin (CaM) and Hsp70 protein which plays a role of cell stress indicator and is a Ca(2+)-dependent CaM-binding protein. For the experimental model we have chosen U937 cell line exposed to chemical- and/or physical stress factors. Puromycin (PMC) was used as a chemical apoptosis inducer. Alternating (AC) (6.5rms mT, 35 Hz) magnetic field combined with 6 mT static (DC) component, or pulsed electromagnetic field (45 ± 5)mT, 50 Hz (PEMF) acted as physical stressors...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151079/mechanisms-of-vasorelaxation-induced-by-total-flavonoids-of-euphorbia-humifusa-in-rat-aorta
#3
T T Wang, Z Q Zhou, S Wang, X W Ji, B Wu, L Y Sun, J F Wen, D G Kang, H S Lee, K W Cho, S N Jin
Euphorbia humifusa Willd. (EH), rich in flavonoids, has long been used for the treatment of bacillary dysentery and enteritis in China, and is known to have antioxidant, hypotensive and hypolipidemic properties. However, the vasorelaxant effect of total flavonoids of EH (TFEH) and action mechanisms are not clearly defined yet. The aim of the present study was to investigate the effects of TFEH on the vascular tension and its underlying mechanisms. Experiments were performed in rat thoracic aorta using the organ bath system...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151078/therapeutic-effect-of-exogenous-ghrelin-in-the-healing-of-gingival-ulcers-is-mediated-by-the-release-of-endogenous-growth-hormone-and-insulin-like-growth-factor-1
#4
J Cieszkowski, Z Warzecha, P Ceranowicz, D Ceranowicz, B Kusnierz-Cabala, M Pedziwiatr, M Dembinski, T Ambrozy, T Kaczmarzyk, M Pihut, M Wieckiewicz, R Olszanecki, A Dembinski
Ghrelin, an acylated 28-amino acid polypeptide, was primary isolated from the stomach, and the stomach is a main source of circulating ghrelin. Ghrelin strongly and dose-dependently stimulates release of growth hormone from the anterior pituitary, as well as increases food intake and fat deposition. Previous studies showed that ghrelin exhibits protective and therapeutic effect in different parts of the gastrointestinal system, including the oral cavity. The aim of present study was to examine the role of growth hormone and insulin-like growth factor-1 (IGF-1) in the healing of gingival ulcers...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151077/weight-loss-dependent-and-independent-effects-of-moderate-calorie-restriction-on-endothelial-cell-markers-in-obesity
#5
K Korybalska, J Luczak, E Swora-Cwynar, A Kanikowska, N Czepulis, D Kanikowska, H Skalisz, A Breborowicz, M Grzymislawski, J Witowski
Endothelial cell dysfunction in obesity can be reduced by calorie restriction (CR), however it is unclear whether this benefit requires a concomitant weight loss or is it simply related to the reduced calorie intake per se. In our study serum was drawn from 41 obese women who were undergoing an 8-week dietary intervention with 15 - 30% energy deficit, and from 48 age- and sex-matched controls of normal weight. Serum was analysed for biomarkers of endothelial cell function, oxidative stress and inflammation...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151076/modulation-of-the-endocannabinoid-system-by-the-fatty-acid-amide-hydrolase-monoacylglycerol-and-diacylglycerol-lipase-inhibitors-as-an-attractive-target-for-secretory-diarrhoea-therapy
#6
A Wasilewski, A Misicka, M Sacharczuk, J Fichna
Secretory diarrhoea is a leading cause of mortality and morbidity worldwide. Our aim was to characterize the effect of inhibition of selected enzymes involved in the synthesis or degradation of endocannabinoids on electrolyte equilibrium in the mouse colonic tissue. The aim of this study was to evaluate the effects of PF-3845, JZL-184 and RHC-80267, as inhibitors of fatty acid amide hydrolase (FAAH), monoacylglycerol (MAGL) and diacylglycerol lipase (DAGL), respectively on epithelial ion transport in isolated mouse colon stimulated by forskolin (FSK), veratridine (VER) and bethanechol (BET)...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151075/formation-of-new-blood-vessels-during-gastric-ulcer-healing-role-of-bone-marrow-derived-endothelial-progenitor-cells
#7
A Ahluwalia, T Brzozowski, M K Jones, Y Ichikawa, A S Tarnawski
Regeneration of blood vessels (neovascularization) is critical for gastric ulcer (GU) healing. The contributions of bone marrow-derived endothelial progenitor cells (BMD-EPCs) to neovascularization during GU healing are not fully elucidated. Our specific aims were to determine whether in GU, BMD-EPCs are incorporated into blood vessels of GU granulation tissue jointly with ECs, thus forming hybrid vessels; or, form separate vessels consisting of only BMD-EPCs. GUs were induced in rats by serosal application of acetic acid...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151074/interferon-lambda-2-promotes-mammary-tumor-metastasis-via-angiogenesis-extension-and-stimulation-of-cancer-cell-migration
#8
R Pingwara, K Witt-Jurkowska, K Ulewicz, J Mucha, K Tonecka, Z Pilch, B Taciak, K Zabielska-Koczywas, M Mori, S Berardozzi, B Botta, T P Rygiel, M Krol
Myeloid-derived suppressor cells (MDSCs) support tumor development by stimulation of angiogenesis and immune response inhibition. In our previous study, we showed that interferon lambda 2 (IFN-λ2), secreted by MDSCs, enhances production of pro-angiogenic factors by cancer cells via phosphorylation of STAT3 and therefore promotes blood vessels formation. In the present study IFN-λ2 level was evaluated by ELISA in serum of tumor-bearing mice, whereas its expression in MDSCs isolated from the lungs with metastatic tumors and normal lungs was assessed by qPCR...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151073/effect-of-the-different-doses-of-acrylamide-on-acetylocholinoesterase-activity-thiol-groups-malondialdehyde-concentrations-in-hypothalamus-and-selected-muscles-of-mice
#9
M Kopanska, J Czech, P Zagata, L Dobrek, P Thor, G Formicki
Acrylamide is a chemical compound that typically forms in starchy food products during high-temperature cooking, including frying, baking and roasting. Acrylamide is a known lethal neurotoxin. Its discovery in some cooked starchy foods in 2002 prompted concerns about the carcinogenicity of those foods. Little is known about acrylamide's influence on the peripheral nerves. In our research we measured acrylamide's influence on the acetylcholinesterase activity in hypothalamus, heart muscle, skeletal muscles of the thigh and smooth muscle of the small intestine (males, Swiss strain) in relation to the thiol groups and malondialdehyde concentration...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151072/the-lactate-receptor-hcar1-gpr81-contributes-to-doxorubicin-chemoresistance-via-abcb1-transporter-up-regulation-in-human-cervical-cancer-hela-cells
#10
W Wagner, K D Kania, A Blauz, W M Ciszewski
The lactate receptor, also known as hydroxycarboxylic acid receptor 1 (HCAR1/GPR81), plays a vital role in cancer biology. Recently, HCAR1 was reported to enhance metastasis, cell growth, and survival of pancreatic, breast, and cervical cancer cells. This study showed, for the first time, the mechanism of HCAR1-mediated chemoresistance to doxorubicin through regulation of ABCB1 transporter. We observed the HCAR1 agonists L-lactate, D-lactate and 3,5-dihydroxybenzoic acid (DHBA) induced up-regulation of ABCB1...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151071/an-observational-cohort-study-of-3-units-versus-5-units-slow-intravenous-bolus-oxytocin-in-women-undergoing-elective-caesarean-delivery
#11
N Terblanche, P Otahal, A Messmer, P Wright, S Patel, K Nathan, J E Sharman
This study sought to compare postpartum blood loss and maternal outcomes after 3IU and 5IU oxytocin at elective caesarean delivery. In a prospective observational study, 73 women undergoing elective caesarean delivery under spinal anaesthetic received a slow I.V. injection of either 3IU (n = 35) or 5IU (n = 38) oxytocin after delivery. The main outcome was gravimetrically measured 24-hour postpartum blood loss with a non-inferiority margin of 300 mL. Uterine tone, phenylephrine dose, emesis and hypotension after oxytocin administration were secondary outcomes...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151070/circadian-rhythms-of-melatonin-and-cortisol-in-manifest-huntington-s-disease-and-in-acute-cortical-ischemic-stroke
#12
A Adamczak-Ratajczak, J Kupsz, M Owecki, D Zielonka, A Sowinska, Z Checinska-Maciejewska, H Krauss, S Michalak, M Gibas-Dorna
Recent studies indicate disruptions to the circadian system in brain injury and neurodegeneration. The results, however, are often not consistent and limited by measurement of only one circadian marker and by infrequent sampling rates. In this study, we examined diurnal rhythmicity in different stages of Huntington (HD) disease and in patients with acute moderate ischemic stroke (AIS) outside the retinohypothalamic pathway by evaluating serum concentrations of melatonin and cortisol at twelve timepoints. All study participants were subjected to the same study protocol of 12-hour light/dark cycle and controlled room conditions...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151069/nitroso-sulfide-coupled-signaling-triggers-specific-vasoactive-effects-in-the-intrarenal-arteries-of-patients-with-arterial-hypertension
#13
S Cacanyiova, A Berenyiova, P Balis, F Kristek, M Grman, K Ondrias, J Breza, J Breza
In normotensive conditions, it has been confirmed that S-nitrosothiols (RSNO), can interact with hydrogen sulfide (H2S) and create new substances with specific vasoactive effects. This interaction could also represent a new regulator signaling pathway in conditions of hypertension. Until now, these effects were studied only in normotensive rats, and they have not been carried out in humans yet. We investigated the vasoactive effects of the products of the H2S/S-nitrosoglutathione (S/GSNO) interaction in lobar arteries (LA) isolated from the nephrectomized kidneys of patients suffering from arterial hypertension and in renal arteries (RA) of spontaneously hypertensive rats (SHR)...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151068/crataegus-special-extract-ws-1442-up-to-date-review-of-experimental-and-clinical-experiences
#14
M Zorniak, B Szydlo, T F Krzeminski
Extracts and tinctures made from Crataegus spp. (Hawthorn) have been used as cardioprotective remedies since ancient times. WS 1442 special extract, manufactured by Dr. W. Schwabe Pharmaceuticals©, made from Crataegus spp. Leaves and flowers is one of the most studied and popular of preparations received from Hawthorn. It is integral, and most important active component of such herbal drugs as Crataegutt® novo 450, and CardioMax®. This standardized extract contains 18.75% oligomeric procyanidins (OPC), which have beneficial cardioprotective values and play a role as free-radicals scavengers, that protect the ischemic heart tissue from neutrophile elastase action successions...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151067/the-x-a-like-cell-revisited-spotlight-on-the-peripheral-effects-of-nucb2-nesfatin-1-and-ghrelin
#15
E Weibert, A Stengel
The gastric X/A-like cell was long thought to be restricted to the production of acyl ghrelin. However, the subsequent years witnessed the discovery of other peptide products derived from this cell, namely desacyl ghrelin, obestatin and nesfatin-1. While the role of obestatin remains highly questionable and is very critically discussed in the literature, besides acyl ghrelin also desacyl ghrelin and nesfatin-1 have been implicated in the regulation of food intake. As observed for several other peptide hormones before, ghrelin and nesfatin-1 are not restricted to one function but rather exert pleiotropic actions including effects on gastrointestinal motility, thermogenesis, lipid and glucose homeostasis, stress mediation, cardiovascular as well as reproductive functions...
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29151066/in-memoriam-professor-andrzej-trzebski
#16
E Szczepanska-Sadowska, A Cudnoch-Jedrzejewska
No abstract text is available yet for this article.
August 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28820403/high-levels-of-soluble-vascular-endothelial-growth-factor-receptor-1-sflt1-and-low-levels-of-vascular-endothelial-growth-factor-in-follicular-fluid-on-the-day-of-oocyte-retrieval-correlate-with-ovarian-hyperstimulation-syndrom-regardless-of-the-stimulation
#17
A J Jakimiuk, M A Nowicka, M Zagozda, K Koziol, P Lewandowski, T Issat
The aim of the study was to assess the predictive value of vascular endothelial growth factor (VEGF), its soluble receptor - sVEGF-R1/sFlt1 and endocrine gland-derived vascular endothelial growth factor (EG-VEGF) concentrations in serum and follicular fluid (FF) for ovarian hyperstimulation syndrome (OHSS) in women undergoing controlled ovarian hyperstimulation (COH) protocols. Patients have been divided into 3 groups: control group on natural cycle, patients stimulated with GnRH agonist and patients stimulated with GnRH antagonist...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28820402/does-signaling-of-estrogen-related-receptors-affect-structure-and-function-of-bank-vole-leydig-cells
#18
P Pawlicki, A Milon, M Zarzycka, J Galas, W Tworzydlo, A Kaminska, L Pardyak, K Lesniak, A Pacwa, B Bilinska, E Gorowska-Wojtowicz, M Kotula-Balak
To get a deeper insight into the function of estrogen-related receptors (ERRs) and dissect underlying mechanism in Leydig cells, ERRs (type α, β and γ) were blocked or activated in testes of adult bank voles (Myodes glareolus) which show seasonal changes in the intratesticular sex hormones level. Both actively reproducing animals (long day conditions; LD) and those with regression of the reproductive system (short day conditions; SD) received intraperitoneal injections of selective ERRα antagonist 3-[4-(2,4-Bis-trifluoromethylbenzyloxy)-3-methoxyphenyl]-2-cyano-N-(5-trifluoromethyl-1,3,4-thiadiazol-2-yl)acrylamide (XCT 790) or selective ERRβ/ERRγ agonist N-(4-(Diethylaminobenzylidenyl)-N'-(4-hydroxybenzoyl)-hydrazine (DY131) (50 μ/kg bw; six doses every other day)...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28820401/intraepidermal-nerve-fiber-density-in-vulvar-lichen-sclerosus-and-normal-vulvar-tissues
#19
K Milian-Ciesielska, L Chmura, G Dyduch, C Jagers, E Radwanska, D Adamek
Lichen sclerosus (LS) is a chronic and inflammatory disease causing sensory symptoms such as itch and pain and affecting most frequently genital skin of women. Intraepidermal nerve fiber density (IENFD) was examined immunohistologically in 20 vulvar skin biopsies of patients affected by LS and in 20 control vulvar skin biopsies, in order to determine if these sensory sensations originate in changes in the epidermal innervation. Obtained results show fewer protein gene product 9.5 (PGP 9.5) positive intraepidermal nerve fibers (IENF) in LS tissues compared to controls (P = 0...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28820400/alteration-in-expressions-of-rhoa-and-rho-kinases-during-pregnancy-in-rats-their-roles-in-uterine-contractions-and-onset-of-labour
#20
D Domokos, E Ducza, G Falkay, R Gaspar
Activation of RhoA and Rho-associated kinases (ROCKs) is known to play a pivotal role in the regulation of smooth muscle contraction via phosphorylation of myosin-light chain and myosin phosphatase. There are few data on the RhoA and ROCKs expression levels in rat uteri. Therefore, our aim was to investigate the mRNA and protein concentration of RhoA and ROCKs in rat uterus during pregnancy, during parturition and post-partum using real time PCR and Western blot analysis. The other purpose was to evaluate the effects of the ROCK (Y-27632, fasudil and RKI 1441) and RhoA inhibitors (simvastatin) on uterine contractility in isolated organ bath experiments...
June 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
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