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Folia Biologica (Praha)

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https://www.readbyqxmd.com/read/29871736/buccal-respiratory-chain-complexes-i-and-iv-quantities-in-huntington-s-disease-patients
#1
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://www.readbyqxmd.com/read/29871735/pyrogallol-induces-apoptosis-in-human-platelets
#2
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://www.readbyqxmd.com/read/29871734/lactoferrin-prevents-susceptibility-of-wehi-231-cells-to-anti-ig-induced-cell-death-promoting-cell-differentiation
#3
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://www.readbyqxmd.com/read/29871733/extracellular-dna-as-a-prognostic-and-therapeutic-target-in-mouse-colitis-under-dnase-i-treatment
#4
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://www.readbyqxmd.com/read/29871732/valproic-acid-decreases-the-nuclear-localization-of-mdt-28-the-nematode-orthologue-of-med28
#5
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://www.readbyqxmd.com/read/29687777/to-the-large-nucleolar-bodies-in-apoptotic-leukaemic-granulocytic-progenitors-without-further-differentiation-are-large-nucleoli-always-present-in-proliferating-cells
#6
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)
https://www.readbyqxmd.com/read/29687776/molecular-cloning-of-the-porcine-htra3-gene-and-association-of-a-snp-with-litter-size-traits
#7
W Xudong, Z Guiying, F Guowen, L Yonggang
HtrA serine peptidase 3 (HTRA3) is an important reproduction-related gene. In this study, we cloned the full-length coding sequence of the porcine HTRA3 gene using RT-PCR. Sequence analysis of this gene revealed that the pig HTRA3 gene encodes a protein of 453 amino acids, which has high homology with the HTRA3 protein of five species: water buffalo (96 %), killer whale (96 %), sperm whale (96 %), Yangtze River dolphin (96 %) and smalleared galago (93 %). Phylogenetic analysis revealed that the pig HTRA3 gene has a closer genetic relationship with the HTRA3 gene of cattle...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29687775/expression-of-matrix-metalloproteinases-and-endogenous-inhibitors-in-abdominal-aortic-aneurysm-and-aortoiliac-occlusive-disease-syndrome-leriche
#8
N Vasic, S Glumac, S Pejic, L J Amidzic, L J Tadic Latinovic, B Dozic, S Hinic, Z Maksimovic
Matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) play a complex role in the pathogenesis of atherosclerosis. We compared (1) the histopathological findings in patients with abdominal aortic aneurysms (AAA) and aortoiliac occlusive disease (AOD); (2) the expression of MMP-2/MMP-9 and TIMP-1/TIMP-2 in aortic layers, inflammatory cells and smooth muscle cells (SMCs), aiming to identify the common underlying pathogenic mechanisms of the disease development. Samples were obtained from 30 patients with AAA and 30 with AOD...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29687774/comparison-of-subtypes-of-hepatocellular-adenoma-to-hepatocellular-carcinoma-and-non-neoplastic-liver-tissue-in-terms-of-pten-expression
#9
G Szparecki, T Ilczuk, N Gabzdyl, B Górnicka
PTEN is a tumour suppressor gene whose loss of function has been found to be present in a variety of neoplasms, both benign and malignant. In hepatocellular carcinoma (HCC), loss of PTEN is associated with poorly differentiated cancer, advanced clinical stage and tendency to recur. The extent and meaning of PTEN loss in hepatocellular adenoma (HA), one of the precursor lesions for HCC, has not yet been analysed. The aim of the present study was to evaluate the possible loss of PTEN expression in HA in the wider context of hepatocarcinogenesis...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29687773/the-effect-of-stress-on-the-galaninergic-system-in-the-rat-adenohypophysis-mrna-expression-and-immunohistochemistry-of-galanin-receptors
#10
I Kramáriková, J Šípková, P Šída, S Hynie, V Klenerová
The neuropeptide galanin is a widely distributed neurotransmitter/neuromodulator that regulates a variety of physiological processes and also participates in the regulation of stress responses. The effect of stress is dependent on the activity of the hypothalamic-adenohypophyseal-adrenal axis. Although the adenohypophysis is a crucial part of this axis, galanin peptides and their receptors have not yet been identified in this part of the pituitary after activation of the stress response. Since there are many controversies about the occurrence of individual galanin receptor subtypes in the adenohypophysis under basal conditions, we decided to verify their presence immunohistochemically, and we clearly demonstrated that the adenohypophysis expresses neuropeptides galanin, galanin-like peptide, and subtypes of galanin receptors GalR1, GalR2 and GalR3...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29687772/matrix-metalloproteinase-2-and-9-lactate-and-malate-dehydrogenase-and-lipid-peroxides-in-sera-of-patients-with-colorectal-carcinoma
#11
K Gopcevic, B Rovcanin, D Kekic, Z Krivokapic, V Dragutinovic
Matrix metalloproteinases (MMPs) are involved in tumour invasion and metastasis of colorectal carcinoma. Oxidative stress represents one of the possible mechanisms that activate inactive MMPs. Oxidative stress increases lipid peroxidation, which causes impaired membrane permeability and leakage of lactate dehydrogenase (LDH) and malate dehydrogenase (MDH) into circulation. Our aim was to assess the activity of MMP-2 and MMP-9 and its relation to the parameters of oxidative stress and membrane damage markers in patients with different TNM (tumour, lymph nodes, metastasis) stages of colorectal carcinoma...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29687771/cytokine-network-nets
#12
M Garley, E Jabloňská, A Suraźyński, K Grubczak, W Ratajczak-Wrona, A Iwaniuk, D Dabrovska, J A Palka, M Moniuszko
The process of forming and releasing neutrophil extracellular traps (NETs) can be regulated by exogenous and endogenous factors, including cytokines. The study aimed to assess the impact of proinflammatory cytokines, IL-15, IL-17, IL-18, and anti-inflammatory IL-10 on the formation of NETs, all in comparison to IL-8 and pathogenic factors: LPS, fMLP. Also, the expression of myeloperoxidase (MPO), one of the main elements of neutrophil traps, was evaluated. After isolating the neutrophils with Polymorphprep™, the cells were sorted using CD16 MACS® microbeads and incubated with selected factors...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29687770/pilot-study-of-the-occurrence-of-somatic-mutations-in-ciliary-signalling-pathways-as-a-contribution-factor-to-autosomal-dominant-polycystic-kidney-development
#13
K Skalická, G Hrčková, A Vaská, A Baranyaiová, P Janega, Z Žilinská, D Daniš, L Kovács
Autosomal-dominant polycystic kidney disease (ADPKD) is an inherited disease that results in multiple kidney cysts, and it is a common cause of end-stage renal disease. Recent studies have shown that disease progression can be slowed by simultaneous disruption of the primary cilium and polycystins. The exact genetic mechanism of this process is still unknown. The aim of the present study was to characterize the mutation profile of ciliary signalling pathways in the renal epithelial cells of ADPKD patients. In our study, we performed an analysis of 110 genes encoding the components of Sonic Hedgehog, Hippo, Notch, Wnt and planar cell polarity signalling (PCP) by targeted next-generation sequencing...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29687769/molecular-diagnostics-of-copper-transporting-protein-mutations-allows-early-onset-individual-therapy-of-menkes-disease
#14
L Králík, E Flachsová, H Hansíková, V Saudek, J Zeman, P Martásek
Menkes disease is a severe X-linked recessive disorder caused by a defect in the ATP7A gene, which encodes a membrane copper-transporting ATPase. Deficient activity of the ATP7A protein results in decreased intestinal absorption of copper, low copper level in serum and defective distribution of copper in tissues. The clinical symptoms are caused by decreased activities of copper-dependent enzymes and include neurodegeneration, connective tissue disorders, arterial changes and hair abnormalities. Without therapy, the disease is fatal in early infancy...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29256858/oridonin-induces-apoptosis-in-human-nasopharyngeal-carcinoma-cells-involving-ros-generation
#15
P Zhang, S-R Zhao, F Liu, X-J Sun, H Liu
Oridonin, an ent-kaurene diterpenoid isolated from the traditional Chinese herb Rabdosia rubescens, has been reported to be a potent cytotoxic agent against a wide array of cancer cells. However, its effect on human nasopharyngeal carcinoma (NPC) cells has not been well investigated. The present study aimed to explore the anti-tumour effect of oridonin in NPC cells and its underlying mechanisms. Cell viability was examined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide assay and colony formation assay...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29256857/expression-of-c-met-protein-in-various-subtypes-of-hepatocellular-adenoma-compared-to-hepatocellular-carcinoma-and-non-neoplastic-liver-in-human-tissue
#16
G Szparecki, T Ilczuk, N Gabzdyl, E Stocka-Łabno, B Górnicka
Hepatocellular adenoma (HA) is a benign neoplasm of the liver, whose aetiopathogenesis is little known. Newest research allowed dividing all cases into three types based on molecular characteristics: inflammatory HA, HA with HNF1A mutation, β-catenin-mutated HA. The clinical significance of HA is chiefly due to the possibility of malignant transformation into hepatocellular carcinoma (HCC). The aim of the present study was to immunohistochemically assess the expression pattern and level of c-MET protein in hepatocellular adenoma (taking into account its status of Wnt/β-catenin pathway functioning) and intertwining the results into a wider pattern of expression in non-neoplastic liver and hepatocellular carcinoma of various histological grades...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29256856/highly-conserved-keratin-associated-protein-7-1-gene-in-yak-taurine-and-zebu-cattle
#17
S Arlud, N He, E M Sari, Z-J Ma, H Zhang, T-W An, J-L Han
Keratin-associated proteins (KRTAPs) play a critical role in cross-linking the keratin intermediate filaments to build a hair shaft. The genetic polymorphisms of the bovine KRTAP7-1 gene were investigated for the first time in this study. The complete coding sequence of the KRTAP7-1 gene in 108 domestic yak, taurine and zebu cattle from China and Indonesia were successfully amplified using polymerase chain reaction and then directly sequenced. Only two single-nucleotide polymorphisms (one nonsynonymous at c...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29256855/the-differentiation-potential-of-human-natal-dental-pulp-stem-cells-into-insulin-producing-cells
#18
J Suchanek, S A Nasry, T Soukup
Mesenchymal stem cells have the ability to differentiate into insulin-producing cells, raising the hope for diabetes mellitus treatment. The aim of this research was to study the ability of stem cells from discarded natal teeth to differentiate into insulinproducing cells. Two vital human natal teeth were obtained from a healthy 2-day-old female. Stem cells from the dental pulp were isolated, cultured under xenogenic-free conditions, propagated and characterized. Proliferative activity, population doubling time and viability were measured, and the multipotent differentiation ability was investigated...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/29256854/how-to-crack-the-sugar-code
#19
REVIEW
H-J Gabius
The known ubiquitous presence of glycans fulfils an essential prerequisite for fundamental roles in cell sociology. Since carbohydrates are chemically predestined to form biochemical messages of a maximum of structural diversity in a minimum of space, coding of biological information by sugars is the reason for the broad occurrence of cellular glycoconjugates. Their glycans originate from sophisticated enzymatic assembly and dynamically adaptable remodelling. These signals are read and translated into effects by receptors (lectins)...
2017: Folia Biologica (Praha)
https://www.readbyqxmd.com/read/28805561/kcnj11-and-kcnq1-gene-polymorphisms-are-not-associated-with-post-transplant-diabetes-mellitus-in-kidney-allograft-recipients-treated-with-tacrolimus
#20
E Dabrowska-Zamojcin, M Tarnowski, M Szydlowski, M Romanowski, V Dziedziejko, K Safranow, L Domanski, A Pawlik
Post-transplant diabetes mellitus (PTDM) is a metabolic disorder occurring after solid organ transplantation during the therapy with calcineurin inhibitors. ATP-sensitive potassium channels KCNJ11 and KCNQ1 play an important role in the regulation of insulin secretion by β cells and development of diabetes mellitus. Numerous studies have confirmed the association between KCNJ11 and KCNQ1 gene polymorphisms and type 2 diabetes. The aim of this study was to examine the association between KCNJ11 and KCNQ1 gene polymorphisms and posttransplant diabetes mellitus in kidney allograft recipients treated with tacrolimus...
2017: Folia Biologica (Praha)
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