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Folia Biologica (Praha)

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https://read.qxmd.com/read/30724161/multielemental-chemical-analysis-of-elements-in-mandibular-bone-and-teeth-in-the-rat
#1
I Němec, V Smrčka, M Mihaljevic, J Mazánek, J Pokorný
The original article was published in Folia Biologica (Praha) Volume 64, No. 3 (2018), 84-96.
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30724160/native-high-density-lipoprotein-and-melatonin-improve-platelet-response-induced-by-glycated-lipoproteins
#2
D Ozsavci, A Nazli, O Bingol Ozakpinar, G Yanikkaya Demirel, B Vanizor Kural, A Sener
Activated platelets and glycated lipoproteins are responsible for atherothrombosis in diabetics. Melatonin and native high-density lipoproteins are crucial in the preservation of pro/oxidant-antioxidant balance. The aim of the present study was to investigate the in vitro effects of native high-density lipoproteins and melatonin on altering the platelet response induced by glycated lipoproteins. Low-density lipoproteins and high-density lipoproteins were purified from plasma by ultracentrifugation and were glycated with glucose for three weeks...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30724159/comparison-of-fully-automated-and-semi-automated-methods-for-species-identification
#3
E Y Kalafi, M K Anuar, M K Sakharkar, S K Dhillon
The process of manual species identification is a daunting task, so much so that the number of taxonomists is seen to be declining. In order to assist taxonomists, many methods and algorithms have been proposed to develop semi-automated and fully automated systems for species identification. While semi-automated tools would require manual intervention by a domain expert, fully automated tools are assumed to be not as reliable as manual or semiautomated identification tools. Hence, in this study we investigate the accuracy of fully automated and semi-automated models for species identification...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30724158/epigenetic-view-on-interferon-%C3%AE-signalling-in-tumour-cells
#4
E Selinger, M Reiniš
IFN-γ is a pleiotropic cytokine crucial for both innate and adaptive immunity, which also plays a critical role in immunological surveillance of cancer. Genetic defects or gene silencing in the IFN-γ signal transduction pathways as well as in the expression of IFN-γ-regulated genes represent frequent mechanisms by which tumour cells can escape from immune responses. Epigenetic control of the IFN-γ signalling pathway activation associated with epigenetic changes in the corresponding regulatory gene regions, such as chromatin remodelling, histone acetylation and methylation, and DNA demethylation is frequently dysregulated in tumour cells...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30724157/cell-membrane-derived-microvesicles-in-systemic-inflammatory-response
#5
M Šibíková, J Živný, J Janota
Human body reacts to physical, chemical and biological insults with a complex inflammatory reaction. Crucial components and executors of this response are endothelial cells, platelets, white blood cells, plasmatic coagulation system, and complement. Endothelial injury and inflammation are associated with elevated blood levels of cell membrane-derived microvesicles. Increased concentrations of microvesicles were found in several inflammatory reactions and diseases including acute coronary syndromes, stroke, vasculitis, venous thromboembolism, multiple sclerosis, rheumatoid arthritis, systemic lupus erythematosus, anti-phospholipid antibody syndrome, inflammatory bowel disease, thrombotic thrombocytopenic purpura, viral myocarditis, sepsis, disseminated intravascular coagulation, polytrauma, and burns...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30394268/parp-1-involvement-in-autophagy-and-their-roles-in-apoptosis-of-vascular-smooth-muscle-cells-under-oxidative-stress
#6
Y Y Meng, C W Wu, B Yu, H Li, M Chen, G X Qi
Autophagy and poly(ADP-ribose) polymerase 1 (PARP-1) are activated and involved in a series of cell processes under oxidative stress, which is associated with pathogenesis of atherosclerosis. Research on their relationship under oxidative stress has been limited. In this study, we aimed to investigate the activation, relationship, and role of autophagy and PARP-1 in vascular smooth muscle cell (VSMC) death under oxidative stress. This study explored the signal molecule PARP-1 and autophagy in VSMCs using gene silencing and the hydrogen peroxide (H2O2)-stimulated oxidative stress model...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30394267/serum-levels-of-aryl-hydrocarbon-receptor-cytochromes-p450-1a1-and-1b1-in-patients-with-exacerbated-psoriasis-vulgaris
#7
M Beránek, Z Fiala, J Kremláček, C Andrýs, J Krejsek, K Hamáková, V Palička, L Borská
The aryl hydrocarbon receptor (AhR) is highly expressed in psoriasis skin lesions. The aim of this study was to investigate serum concentrations of AhR, cytochromes P450 (CYP) 1A1 and 1B1 in patients with exacerbated psoriasis vulgaris treated with combined therapy of ultraviolet radiation (UVR) and crude coal tar. The analyses were performed by using enzyme-linked immunosorbent assays. Before the treatment, the patients had significantly higher serum levels of AhR and CYP1A1 than healthy controls. AhR median noticeably decreased after the therapy; nevertheless, it remained significantly higher compared to the controls...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30394266/multielemental-chemical-analysis-of-elements-in-mandibular-bone-and-teeth-in-the-rat
#8
I Němec, V Smrčka, M Mihaljevic, J Mazánek, J Pokorný
The purpose of the study was to test the hypothesis of different distribution spaces of elements in the rat mandibular bone and teeth. We used six adult males of Wistar laboratory rats for the study. After killing the animals, we extracted the molars and removed incisor crowns. The mandibular bone was divided into four parts (mesial-central-distal-ridge). Inductively coupled plasma mass spectrometry was used to determine the presence of 41 elements in the bone and tooth. Evidence of 14 elements was found in all samples (incisors-molarsbone)...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30394265/the-role-of-hnf1b-in-tumorigenesis-of-solid-tumours-a-review-of-current-knowledge
#9
M Bártů, P Dundr, K Němejcová, I Tichá, H Hojný, N Hájková
Hepatocyte nuclear factor 1-β is a transcription factor which plays a crucial role during ontogenesis in the differentiation of visceral endoderm from primitive endoderm, and is especially important for the normal development of the kidney, urogenital tract, gastrointestinal tract, liver, and pancreas. Despite the growing knowledge about the potential involvement of hepatocyte nuclear factor 1-β in the process of carcinogenesis, the exact underlying mechanism that would explain its rather varied effects in different tumours has not been sufficiently investigated...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30338758/first-bosnian-study-of-the-relationship-between-apoe-rs7412-and-rs429358-variants-and-pregnancy-loss
#10
G Adler, E Mahmutbegovic, I Uzar, M A Adler, N Mahmutbegovic, A Valjevac
Due to inconsistent results of APOE variants in the survival of pregnancy we investigated the potential relationship of APOE rs7412 and rs429358 with pregnancy loss (PL) in Bosnian women. We enrolled 154 women with PL. The minimum week of miscarriage was 6, while the maximum was 28. As a control group, an equal number of mothers with at least one live-born child was included. All women were recruited from the Institution of Health Protection of Women and Motherhood in Sarajevo, Bosnia and Herzegovina. Genotyping was performed by real- time PCR at the Department of General Pharmacology and Pharmacoeconomics, Pomeranian Medical University...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30338757/nos3-gene-rs1799983-and-rs2070744-polymorphisms-in-patients-with-periodontal-disease
#11
M Mazurek-Mochol, M Kozak, M Sawczuk, A Maciejewska, D Malinowski, K Safranow, A Pawlik
Periodontal disease is a common oral disease. Inflammatory and immune responses to oral microorganisms initiate the development of periodontitis. Cigarette smoking is an important environmental risk factor for periodontitis. Another important inflammatory mediator is nitric oxide (NO). NO modulates vascular tone, microvascular permeability, leukocyte migration and oxidative activity, contributing to the direct killing of microorganisms. Several polymorphisms of the NOS3 gene have been detected, which may alter gene expression and NO synthesis...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30338756/alkb-8-a-2-oxoglutarate-dependent-dioxygenase-and-s-adenosine-methionine-dependent-methyltransferase-modulates-metabolic-events-linked-to-lysosome-related-organelles-and-aging-in-c-elegans
#12
J Kollárová, M Kostrouchová, A Benda, M Kostrouchová
ALKB-8 is a 2-oxoglutarate-dependent dioxygenase homologous to bacterial AlkB, which oxidatively demethylates DNA substrates. The mammalian AlkB family contains AlkB homologues denominated ALKBH1 to 8 and FTO. The C. elegans genome includes five AlkB-related genes, homologues of ALKBH1, 4, 6, 7, and 8, but lacks homologues of ALKBH2, 3, and 5 and FTO. ALKBH8 orthologues differ from other AlkB family members by possessing an additional methyltransferase module and an RNA binding N-terminal module. The ALKBH8 methyltransferase domain generates the wobble nucleoside 5-methoxycarbonylmethyluridine from its precursor 5-carboxymethyluridine and its (R)- and (S)-5-methoxycarbonylhydroxymethyluridine hydroxylated forms in tRNA Arg/UCG and tRNA Gly/UCC...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30338755/hpv-status-and-mutation-analysis-using-multiparallel-sequencing-in-distal-oesophageal-and-gastro-oesophageal-junction-adenocarcinomas
#13
M Vošmik, H Vošmiková, K Sieglová, I Sirák, J Laco, A Ryška, J Petera, B Melichar, R Soumarová
The incidence of adenocarcinoma of oesophagus or gastro-oesophageal junction is increasing in Europe and other regions of the Western world. Research of possible causes has shifted to the molecular level. This study evaluated human papillomavirus (HPV) using real-time PCR and mutational status of selected genes using the multiparallel sequencing method (NGS) in DNA extracted from paraffin-embedded tumour tissue of 56 patients with oesophageal or gastro-oesophageal junction adenocarcinoma. The genetic material was in sufficient quality for the analysis in 37 cases (66 %)...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/30338754/notch-and-cdk5-in-zebrafish-mindbomb-mutant-co-regulation-or-coincidence
#14
J Kanungo, M T Goswami, H C Pant
Notch signalling is critical for the development of the nervous system. In the zebrafish mindbomb mutants, disruption of E3 ubiquitin ligase activity inhibits Notch signalling. In these mutant embryos, precocious development of primary neurons leading to depletion of neural progenitor cells results in a neurogenic phenotype characterized by defects in neural patterning and brain development. Cyclin-dependent kinase 5 (Cdk5), a predominant neuronal kinase, is involved in a variety of essential functions of the nervous system...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/29871736/buccal-respiratory-chain-complexes-i-and-iv-quantities-in-huntington-s-disease-patients
#15
P Dušek, M Rodinová, I Lišková, J Klempíř, J Zeman, J Roth, H Hansíková
Alterations in mitochondrial parameters are an important hallmark of Huntington's disease (HD). The ubiquitous expression of mutant huntingtin raises the prospect that mitochondrial disturbances can also be detected and monitored through buccal epithelial cells. In a group of 34 patients with Huntington's disease and a group of 22 age-related healthy volunteers, respiratory complex I and IV protein quantities in buccal epithelial cells were measured using the dipstick immunocapture assay. The protein quantity of respiratory complex I correlates with age (r = 0...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/29871735/pyrogallol-induces-apoptosis-in-human-platelets
#16
G Bruges, W Venturini, G Crespo, M López Zambrano
Pyrogallol is a polyphenol that generates the superoxide anion. In this study, we investigated the influence of pyrogallol on human platelets. Our data showed that exposure of platelets to pyrogallol induced numerous manifestations of apoptosis including depolarization of mitochondrial inner membrane and release of cytochrome c from the mitochondria. Pyrogallol also induced downstream extra-mitochondrial apoptotic responses, including activation of caspase-3 and phosphatidylserine exposure on the outer leaflet of the plasma membrane...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/29871734/lactoferrin-prevents-susceptibility-of-wehi-231-cells-to-anti-ig-induced-cell-death-promoting-cell-differentiation
#17
E Zaczyńska, I Kochanowska, M Kruzel, M Zimecki
Immature B cells are susceptible to apoptosis due to ligation of surface immunoglobulin receptors. The WEHI 231 cell line represents a useful model to study the mode of action of factors preventing apoptosis. In this work we investigated the protective effects of multi-species lactoferrins in anti-mouse Ig-induced WEHI 231 cell death. Bovine milk-derived lactoferrin (bLF), recombinant human lactoferrin expressed in Chinese hamster ovary cells - rhLF(CHO) or in human endothelial kidney cells - rhLF(HEK), and recombinant mouse lactoferrin expressed in Chinese hamster ovary cells - rmLF(CHO), were used...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/29871733/extracellular-dna-as-a-prognostic-and-therapeutic-target-in-mouse-colitis-under-dnase-i-treatment
#18
J Bábíčková, J Čonka, L Janovičová, M Boriš, B Konečná, R Gardlík
The aim of this study was to investigate the potential of extracellular DNA as a prognostic and/or therapeutic target in inflammatory bowel disease. Fifty male C57BL/6J mice were used in the experiment. Acute colitis was induced by intake of 2% dextran sulphate sodium (DSS) for seven days followed by three days of water intake. DNase I was injected intravenously on days 3 and 7. Plasmatic levels of extracellular DNA (ecDNA) were measured on days 6 and 10. Weight loss, stool consistency and liquid intake were monitored throughout the experiment...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/29871732/valproic-acid-decreases-the-nuclear-localization-of-mdt-28-the-nematode-orthologue-of-med28
#19
M Kostrouchová, V Kostrouchová, P Yilma, A Benda, V Mandys, M Kostrouchová
Mediator is a multiprotein complex that connects regulation mediated by transcription factors with RNA polymerase II transcriptional machinery and integrates signals from the cell regulatory cascades with gene expression. One of the Mediator subunits, Mediator complex subunit 28 (MED28), has a dual nuclear and cytoplasmic localization and function. In the nucleus, MED28 functions as part of Mediator and in the cytoplasm, it interacts with cytoskeletal proteins and is part of the regulatory cascades including that of Grb2...
2018: Folia Biologica (Praha)
https://read.qxmd.com/read/29687777/to-the-large-nucleolar-bodies-in-apoptotic-leukaemic-granulocytic-progenitors-without-further-differentiation-are-large-nucleoli-always-present-in-proliferating-cells
#20
K Smetana, K Kuželová, M Zápotocký, Z Hrkal
Large nucleoli have generally been believed to be present in less differentiated and proliferating cells including the malignant ones. Such nucleoli have also been considered to be active in the biosynthetic process and major cell developmental activities. In contrast, after cytostatic treatment, apoptotic leukaemic progenitors still containing nuclei did not exhibit substantial reduction of the nucleolar size but displayed decreased nucleolar biosynthetic activity. The present study was undertaken to provide more information on the large nucleoli in spontaneously occurring apoptotic leukaemic progenitors without further differentiation...
2017: Folia Biologica (Praha)
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