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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/28614779/the-effect-of-the-nitroxide-pirolin-on-oxidative-stress-induced-by-doxorubicin-and-taxanes-in-the-rat-brain
#1
S Tabaczar, J Czepas, A Koceva-Chyla, E Kilanczyk, J Piasecka-Zelga, K Gwozdzinski
The anticancer drugs doxorubicin (DOX), paclitaxel (PTX) and docetaxel (DTX) have been proven to induce oxidative stress (OS)-dependent side-effects in non-targeted tissues. In normal conditions, the blood-brain barrier (BBB) prevents these drugs from penetrating into the brain. However, some studies have demonstrated that small amounts of DOX can penetrate the brain via an oxidatively impaired BBB and cause damage, which suggests that including antioxidants in chemotherapy could possibly protect the brain against the toxicity of anticancer drugs...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614778/the-human-immunodeficiency-virus-hiv1-protease-inhibitor-sanquinavir-activates-autophagy-and-removes-lipids-deposited-in-lipid-droplets
#2
A Polus, M Bociaga-Jasik, U Czech, J Goralska, U Cialowicz, M Chojnacka, M Polus, K Jurowski, A Dembinska-Kiec
Reduction in mortality and increased average life span of the human immunodeficiency virus (HIV)-infected patients treated with antiretroviral therapy (ART) are associated with the risk of unwanted effects, such as insulin resistance and dyslipidemia with cardiovascular complications. Antiretroviral therapy may also be associated with lipodystrophy characterized as peripheral lipoatrophy with central fat accumulation. Understanding the molecular mechanisms of lipodystrophy caused by ART is important for therapeutic strategy and the prediction of side-effects...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614777/increased-circulating-endocan-in-patients-with-cirrhosis-relation-to-bacterial-infection-and-severity-of-disease
#3
J Zuwala-Jagiello, K Simon, M Kukla, E Murawska-Cialowicz, J Gorka-Dynysiewicz, E Grzebyk, M Pazgan-Simon
Life expectancy of patients with liver cirrhosis is closely linked to the degree of liver dysfunction and the occurrence of bacterial infection. An early diagnosis of infection helps to initiate adequate and timely measures and improves outcome of cirrhotic patients. Endocan is a newly recognized biomarker of sepsis. However, there have been no studies of the trends in endocan levels in cirrhotic patients with bacterial infection and their associations with markers of infection and inflammation. This study sought to assess the diagnostic value of serum levels of endocan, procalcitonin (PCT), C-reactive protein (CRP), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) in 126 patients with cirrhosis: 51 with decompensated infected cirrhosis, 56 with decompensated uninfected and 19 with compensated uninfected cirrhosis at inclusion...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614776/nonsteroidal-anti-inflammatory-drugs-induced-failure-of-lower-esophageal-and-pyloric-sphincter-and-counteraction-of-sphincters-failure-with-stable-gatric-pentadecapeptide-bpc-157-in-rats
#4
S Vitaic, M Stupnisek, D Drmic, L Bauk, A Kokot, R Klicek, A Vcev, K Luetic, S Seiwerth, P Sikiric
The sphincters failure is a part of NSAIDs-toxicity that can be accordingly counteracted. We used a safe stable gastric pentadecapeptide BPC 157 (GEPPPGKPADDAGLV, MW 1419), LD1 not achieved, since successful in inflammatory bowel disease trials, and counteracts esophagitis, sphincters failure, gastrointestinal ulcer and skin ulcer, external and internal fistulas in rats, and particularly counteracts all NSAIDs-lesions. We assessed lower esophageal sphincter and pyloric sphincter pressure (cmH2O) in rats treated with various NSAIDs regimens, at corresponding time points, known to produce stomach, small intestine lesions, hepatotoxicity and encephalopathy...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614775/changes-in-viability-of-rat-adipose-derived-stem-cells-isolated-from-abdominal-perinuclear-adipose-tissue-stimulated-with-pulsed-electromagnetic-field
#5
A Baranowska, B Skowron, B Nowak, K Ciesielczyk, P Guzdek, K Gil, J Kaszuba-Zwoinska
Previous experiments demonstrated that low-frequency electromagnetic field (LF-EMF) may activate cellular death pathways in proliferating cells. Therefore, we hypothesized that LF-EMF may also influence viability of highly proliferating undifferentiated adipose-derived stem cells. Obesity is classified as a civilization disease; its etiopathogenesis is presumed to include both genetic predisposition and influence of modified environmental factors, such as unbalanced diet with excess calories and/or too low physical activity...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614774/new-insight-into-the-direct-anti-inflammatory-activity-of-a-myokine-irisin-against-proinflammatory-activation-of-adipocytes-implication-for-exercise-in-obesity
#6
A I Mazur-Bialy, J Bilski, E Pochec, T Brzozowski
A biological activity of myokine irisin, has been intensively investigated in the context of a browning process occurring in white adipose tissue, but its role as a modulator of immune response has been little studied. The aim of our study was to determine the impact of irisin (0 - 100 nM) on pro-inflammatory activation of adipocyte 3T3 L1 cell line. Irisin reduced in a concentration-dependent manner the expression and activity of major proinflammatory cytokines, e.g. tumor necrosis factor-alpha (TNF-α) and interleukin 6 (IL-6) expression and their secretion into cell medium...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614773/assessment-of-neurotoxicity-of-pharmacological-compounds-during-early-neural-development-of-human-embryonic-stem-cells
#7
H Y Kang, E J Hong, H S Kang, C Ahn, E B Jeung
Human embryonic stem cells (hESCs), with the potential for differentiation, have been used to evaluate the embryotoxicity of various compounds. The effects of pharmacological compounds (cytosine arabinoside, 5-fluorouracil, hydroxyurea, indomethacin, and dexamethasone) on neurogenesis of hESCs over 28 days were examined based on cytotoxicity (half-maximal inhibitory concentration of viability, IC50) and expression of neural markers. Cytosine arabinoside, 5-fluorouracil, and hydroxyurea showed strong cytotoxicity (IC50 < 10 μM), whereas indomethacin and dexamethasone had weaker cytotoxic effects...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614772/inhibition-of-blood-platelet-adhesion-by-phenolics-rich-fraction-of-hippophae-rhamnoides-l-fruits
#8
B Olas, B Kontek, M Szczesna, L Grabarczyk, A Stochmal, J Zuchowski
Beneficial influence of fruits on human health may be their ability to prevent the hyperactivation of blood platelets and cardiovascular disorders. Effects of the phenolic fraction from Hippophae rhamnoides fruit on different stages of blood platelet activation (platelet adhesion and aggregation) were studied in vitro. We also examined effects of the H. rhamnoides fraction on metabolism of thiol groups, which plays an important role in platelet functions. The effects of the H. rhamnoides fraction on adhesion of blood platelets to collagen and fibrinogen were determined with Tuszynski's and Murphy's method...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614771/mantidis-ootheca-induces-vascular-relaxation-through-pi3k-akt-mediated-nitric-oxide-cyclic-gmp-protein-kinase-g-signaling-in-endothelial-cells
#9
H Y Kim, Y J Lee, B H Han, J J Yoon, Y M Ahn, M H Hong, R Tan, D G Kang, H S Lee
Mantidis ootheca (Sang Piao Xiao) is well known mantis eggs in a foamy pouch. The purpose of the present study was to investigate the underlying cellular mechanisms of the nitric oxide (NO)-releasing property of the aqueous extract of Mantidis ootheca (AMO) in rat aorta and vascular endothelial cells. AMO was examined for its vascular relaxant effect in isolated phenylephrine-precontracted rat thoracic aortic rings. The roles of the nitric oxide (NO) signaling in the AMO-induced effects were tested in human umbilical vein endothelial cells (HUVECs)...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614770/transcription-factor-gata3-expression-is-induced-by-gls2-overexpression-in-a-glioblastoma-cell-line-but-is-gls2-independent-in-patient-derived-glioblastoma
#10
E Majewska, R Rola, M Barczewska, J Marquez, J Albrecht, M Szeliga
Phosphate-activated glutaminase (GA), a ubiquitous glutamine-metabolizing enzyme, is encoded by two genes, GLS and GLS2. In mammalian cancers, GLS isoforms are perceived as molecules promoting cell proliferation and invasion, whereas the role of GLS2 isoforms seems to be more complex and cell type-specific. Previous studies have shown abundance of GLS and lack of GLS2 transcripts in T98G human glioblastoma (GBM) cell line and patient-derived GBM. Transfection with GAB sequence, the whole GLS2 cDNA transcript, suppressed malignant phenotype of T98G cells...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614769/cell-specific-cytotoxic-effect-of-pyrazole-derivatives-on-breast-cancer-cell-lines-mcf7-and-mda-mb-231
#11
T P Lehmann, J Kujawski, J Kruk, K Czaja, M K Bernard, P P Jagodzinski
Pyrazoles and their derivatives belong to a class of compounds that demonstrate a great potential in design of anticancer, antiangiogenic, and antimetastatic drugs. Our earlier studies showed that pyrazole derivatives TOSPYRQUIN and TOSIND diminished viability of colorectal adenocarcinoma cells HT-29. Here we demonstrated for the first time in human mammary gland adenocarcinoma cell lines MCF7 and MDA-MB-231 cells the cytotoxic effects of four pyrazole derivatives: TOSIND, PYRIND, METPYRIND, and DIPYR. Three pyrazoles: PYRIND, METPYRIND, and one novel unpublished derivative DIPYR were tested for the first time in living cells...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614768/melanocortin-4-receptor-agonist-ro27-3225-ameliorates-soleus-but-not-gastrocnemius-atrophy-in-arthritic-rats
#12
A B Gomez-Sanmiguel, M P Nieto-Bona, C Fernandez-Galaz, T Priego, A I Martin, A Lopez-Calderon
Adjuvant-induced arthritis in rats decreases body weight and muscle mass. Melanocyte stimulating hormone administration to arthritic rats decreases inflammation and skeletal muscle wasting. In this study, we investigate whether activation of melanocortin-4 receptor by RO27-3225 administration is able to prevent the effect of arthritis on the expression of muscle-specific E3 ubiquitin ligases and MyoD in two different muscles, gastrocnemius (a mainly fast type muscle) and soleus (slow type). Arthritis was induced in male Wistar rats by intradermal injection of Freund's adjuvant...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614767/changes-in-caveolin-1-caveolin-3-and-vascular-endothelial-growth-factor-expression-and-protein-content-after-botulinum-toxin-a-injection-in-the-right-masseter-muscle-of-dystrophin-deficient-mdx-mice
#13
U U Botzenhart, V Vaal, I Rentzsch, T Gredes, T Gedrange, C Kunert-Keil
Progressive muscle wasting, frequently associated with inflammation, muscle fibre degeneration and fibrosis, is a characteristic of DMD (Duchenne muscular dystrophy). Its most common used animal model, the mdx mouse, however can overcome muscle degeneration by regeneration processes and is for this reason not suitable to answer all scientific questions. The aim of this study was to evaluate the ability of botulinum toxin A (BTX-A) in breaking down muscle regeneration in mdx mice. For this purpose, the right masseter muscle of 100 days old mdx and healthy mice was paralyzed by a single specific intramuscular injection of BTX-A...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614766/simple-obesity-and-renal-function
#14
D Sikorska, M Grzymislawska, M Roszak, P Gulbicka, K Korybalska, J Witowski
Increasing evidence accumulate to suggest that obesity increases the risk of chronic kidney disease independently of dyslipidemia, diabetes, and hypertension. This so-called obesity-related glomerulopathy is characterized at early stages by glomerular hypertrophy with or without secondary focal segmental glomerulosclerosis. Since, however, kidney biopsies are usually not performed at this phase, an early diagnosis of the disease is often difficult. Here, we review new developments in the pathophysiology of obesity-associated kidney dysfunction and discuss the potential of appropriate monitoring of glomerular filtration rate and albuminuria for early detection of the disease...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28614765/drug-delivery-systems-improving-chemical-and-physical-properties-of-anticancer-drugs-currently-investigated-for-treatment-of-solid-tumors
#15
R Aleksandrowicz, B Taciak, M Krol
Cancer is the second leading cause of death worldwide. Conventional cancer treatment like chemotherapy do not fulfil the expectations of both patients and physicians and there is a pressing need for a new kind of therapies that will increase drug delivery to the tumor mass. Standard chemotherapy does not show either specific tumor-targeting, or selective mode of action for cancer cells. Moreover, tumor microenvironments additionally disturb drug perfusion and diffusion. Currently approved anticancer drugs have many limitations and therefore special delivery systems improving their chemical and physical properties are beneficial...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28456779/effect-of-long-term-culture-on-the-biological-and-morphological-characteristics-of-human-adipose-tissue-derived-stem-cells
#16
L Danisovic, L Oravcova, L Krajciova, Z Varchulova Novakova, M Bohac, I Varga, J Vojtassak
Mesenchymal stem cells (MSCs) are multipotent cells that can be obtained from different tissues, including bone marrow, adipose tissue, umbilical blood, Wharton's jelly, and dental pulp. Due to their differentiation potential, regenerative and immunosuppressive properties, as well as ability to expand under in vitro conditions, these cells represent a promising therapeutic tool for regenerative medicine. However, the basic prerequisite for the therapeutic utilization of MSCs is obtaining a sufficient amount...
February 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28456778/increased-number-of-endothelial-progenitors-in-peripheral-blood-as-a-possible-early-marker-of-tumour-growth-in-post-menopausal-breast-cancer-patients
#17
P Rhone, B Ruszkowska-Ciastek, M Celmer, A Brkic, K Bielawski, J Boinska, E Zarychta, D Rosc
The aim of the study was to evaluate the number of circulating endothelial progenitor cells (circulating EPCs) in the blood of patients diagnosed with breast cancer and to make an attempt at finding associations with the number of circulating EPCs and selected clinic-pathological factors; TNM and histological grading, molecular subtype of breast cancer, hormonal status, the expression of Ki-67 and the size of tumour. The study involved 96 Caucasian ethnicity post-menopausal women. Sixty-six women aged 48 - 63 (mean age 55) with breast cancer diagnosis without distant metastases (M0)...
February 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28456777/short-term-changes-of-serum-potassium-concentration-induced-by-physical-exercise-in-patient-with-arterial-hypertension-treated-with-angiotensin-converting-enzyme-inhibitor-alone-or-in-combination-with-statin
#18
P Deska, M Nowicki
Intensive physical exercise may facilitate potassium release from skeletal muscles that may result in hyperkalemia. Commonly used drugs including angiotensin converting enzyme inhibitors (ACEI) and statins increase a risk of hyperkalemia. It is not known whether the effect of these drugs on serum potassium during physical exercise is additive. The study compared the effect of physical exercise on the changes of serum potassium in hypertensive patients receiving ACEI alone or in combination with statin. Eighteen patients with arterial hypertension with normal renal function were included in a prospective placebo-controlled cross-over study...
February 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28456776/effect-of-sprint-cycling-and-stretch-shortening-cycle-exercises-on-the-neuromuscular-immune-and-stress-indicators-in-young-men
#19
V Verbickas, N Baranauskiene, N Eimantas, S Kamandulis, S Rutkauskas, D Satkunskiene, S Sadauskas, M Brazaitis, A Skurvydas
Selection of optimal physical load is essential for desired adaptation including health benefits. We hypothesized that neuromuscular, immune and stress indicators will be higher after energy demanding sprint interval exercise (SIE) than to mechanically demanding stretch-shortening cycle exercise (SSE). The main aim of this study was to assess and compare the kinetics of blood brain-derived neurotrophic factor (BDNF), norepinephrine (NE) and cortisol (as stress indicators) and proinflammatory (IL-6) and anti-inflammatory (IL-10) cytokines within 24 hours after metabolically demanding SIE and after muscle damage inducing SSE...
February 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28456775/atrial-natriuretic-peptide-and-brain-natriuretic-peptide-changes-after-epicardial-percutaneous-left-atrial-appendage-suture-ligation-using-lariat-device
#20
K Bartus, J Podolec, R J Lee, B Kapelak, J Sadowski, M Bartus, K Oles, P Ceranowicz, R Trabka, R Litwinowicz
Percutaneous left atrial appendage closure is an alternative treatment for stroke and systemic thromboembolism risk reduction in non-valvular atrial fibrillation (AF). However, the neurohormonal impact of epicardial exclusion of the left atrial appendage (LAA) with the LARIAT procedure is unknown. Evaluation of changes in atrial natriuretic peptide (ANP) and brain natriuretic peptide (BNP) levels in AF patients underwent percutaneous LAA suture ligation. Sixty six patients underwent successfully percutaneous LAA suture ligation using LARIAT device...
February 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
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