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Folia Histochemica et Cytobiologica

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https://www.readbyqxmd.com/read/28636071/the-role-of-homocysteine-in-seminal-vesicles-remodeling-in-rat
#1
Adel Ghoul, Elara Moudilou, Mohamed El Hadi Cherifi, Fouzia Zerrouk, Billel Chaouad, Anissa Moulahoum, Souhila Aouichat-Bouguerra, Khira Othmani, Jean-Marie Exbrayat, Yasmina Benazzoug
INTRODUCTION: Elevated plasma homocysteine (Hcy) levels have been associated with several tissue injuries including heart and liver fibrosis. In these diseases, hyperhomocysteinemia (Hhcy) plays a major role in modulating the alteration of the balance between matrix metalloproteinases (MMP) and tissue inhibitors of metalloproteinases (TIMPs), leading to the pathological accumulation of extracellular matrix (ECM) proteins. Since the effect of Hhcy on ECM of seminal vesicle was not studied, the aim of our research was to check if Hcy can induce a remodeling within seminal vesicles ECM...
June 21, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28612341/cardiomyocyte-marker-expression-in-dogs-with-left-atrial-enlargement-due-to-dilated-cardiomyopathy-or-myxomatous-mitral-valve-disease
#2
Izabela Janus, Malgorzata Kandefer-Gola, Rafal Ciaputa, Agnieszka Noszczyk-Nowak, Urszula Paslawska, Massimiliano Tursi, Marcin Nowak
INTRODUCTION: Dilated cardiomyopathy (DCM) and myxomatous mitral valve disease (MMVD) are common heart conditions in dogs. They have different etiology and pathogenesis and although other studies focused on changes in the left ventricles of the affected hearts, the aim of our study was to assess the expressions of some intrinsic proteins in the enlarged left atria. MATERIAL AND METHODS: We performed an immunohistochemical analysis of left atrial specimens obtained from 15 dogs with DCM, 35 dogs with MMVD and six control dogs...
June 14, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28518212/evaluation-of-cytotoxicity-and-ph-changes-generated-by-various-dental-pulp-capping-materials-an-in-vitro-study
#3
Elzbieta Luczaj-Cepowicz, Grazyna Marczuk-Kolada, Malgorzata Pawinska, Marta Obidzinska, Adam Holownia
INTRODUCTION: Various materials are used in direct dental pulp capping method. Their biocompatibility and alkalizing abilities are of primary importance affecting therapeutic effects. The aim of this study was to evaluate and compare the cytotoxicity of various pulp-capping materials on human gingival fibroblasts and investigate the pH changes induced by these materials. MATERIAL AND METHODS: Human gingival fibroblasts were cultured with nine direct pulp materials using culture plate inserts...
May 18, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28518211/inhibition-of-egfr-nuclear-shuttling-decreases-irradiation-resistance-in-hela-cells
#4
Hong Wei, Zijie Zhu, Longtao Lu
INTRODUCTION: Cervical cancer is a leading cause of mortality in women worldwide. The resistance to irradiation at the advanced stage is the main reason for the poor prognosis and high mortality. This work aims to elucidate the molecular mechanism underlying the radio-resistance. MATERIAL AND METHODS: In this study, we determined the pEGFR-T654 and pDNA-PK-T2609 expression level change in irradiated HeLa cells treated with T654 peptide, a nuclear localization signal (NLS) inhibitor, to inhibit EGFR nuclear transport...
May 18, 2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28509315/caspase-3-as-an-important-factor-in-the-early-cytotoxic-effect-of-nickel-on-oral-mucosa-cells-in-patients-treated-orthodontically
#5
Piotr Buczko, Izabela Szarmach, Monika Grycz, Irena Kasacka
INTRODUCTION: The effect of fixed orthodontic appliances on biochemical changes in saliva and pathophysiological status of the oral cavity is not clear. Recent data showed that nickel (Ni) released from orthodontic appliances can decrease cellular viability, induce DNA damage and apoptosis in oral mucosa cells. Since the mechanism of these Ni effects is unknown, the aim of our study was to analyze the expression of caspase-3 in epithelial cells of oral mucosa in healthy individuals treated orthodontically...
2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28509314/influence-of-oxygen-concentration-on-t-cell-proliferation-and-susceptibility-to-apoptosis-in-healthy-men-and-women
#6
Agnieszka Waskowska, Katarzyna A Lisowska, Agnieszka Daca, Izabella Henc, Fredrik Brandberg, Paula Mazurek, Edyta Brzustewicz, Jacek M Witkowski, Ewa Bryl
INTRODUCTION: Much of what we know about the functioning of human T lymphocytes is based on the experiments carried out in atmospheric oxygen (O₂) concentrations, which are significantly higher than those maintained in blood. Interestingly, the gender differences in the activity of T cells and their susceptibility to apoptosis under different O₂ conditions have not yet been described. The aim of the study was to compare two main markers of lymphocyte function: proliferation capacity and ability to produce cytokines as well as their susceptibility to apoptosis under two different O₂ concentrations, between men and women...
2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28509313/decreased-expression-of-survivin-2b-in-human-pituitary-adenomas-a-preliminary-study
#7
Joanna Waligorska-Stachura, Nadia Sawicka-Gutaj, Maciej Zabel, Wlodzimierz Liebert, Pawel Gut, Agata Czarnywojtek, Marek Ruchala
INTRODUCTION: We aimed to investigate survivin and its splice variants DEx3 and 2B expressions in pituitary adenomas and normal pituitary glands using immunohistochemistry. MATERIAL AND METHODS: The study group consisted of eight pituitary adenomas: five of non-functional tumors, two of GH-secreting tumors, and one PRL-secreting tumor. Eight healthy pituitary tissue samples obtained after autopsy served as controls. RESULTS: Survivin expression was found in 87...
2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28509312/histological-immunohistochemical-and-ultrastructural-study-of-secondary-compressed-spinal-cord-injury-in-a-rat-model
#8
Wafaa S Ramadan, Ghada A Abdel-Hamid, Saleh Al-Karim, Aymn T Abbas
INTRODUCTION: Spinal cord injury (SCI) is a life-disrupting condition in which the first few days are the most critical. Secondary conditions remain the main causes of death for people with SCI. The response of different cell types to SCI and their role at different times in the progression of secondary degeneration are not well understood. The aim of this study was to study the histopathological changes of compressed spinal cord injury (CSCI) in a rat model. MATERIAL AND METHODS: Forty adult male Sprague-Dawley rats were divided into four groups...
2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28509311/ultrastructural-characteristics-of-myenteric-plexus-in-patients-with-colorectal-cancer
#9
Agata Zauszkiewicz-Pawlak, Janusz Godlewski, Przemyslaw Kwiatkowski, Zbigniew Kmiec
INTRODUCTION: It have been found previously that colorectal cancer (CRC) is accompanied by atrophy of myenteric plexuses (MPs) localized close to the tumor. The aim of the study was to compare ultrastructure of MPs localized in the unchanged part of the colon wall distant to CRC tumor with the ultrastructure of MPs in the vicinity of CRC tumor. MATERIAL AND METHODS: The present study was conducted using post-operative material derived from 11 patients with CRC. Samples of colon wall were taken from the margin of cancer invasion and from a macroscopically unchanged segment of the large intestine, immediately fixed and processed according to the standard protocol for transmission electron microscopy studies...
2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28509310/circulating-tumor-cells-in-different-stages-of-colorectal-cancer
#10
Petra Eliasova, Michael Pinkas, Katarina Kolostova, Robert Gurlich, Vladimir Bobek
INTRODUCTION: Liquid biopsies are noninvasive tests using blood or body fluids to detect circulating tumor cells (CTCs) or the products of tumor cells, such as fragments of nucleic acids or proteins that are shed into biological fluids from primary tumor or its metastates. The analysis of published clinical studies provides coherent evidence that the presence of CTCs detected in peripheral blood is a strong prognostic factor in patients with colorectal carcinoma (CRC). The aim of the study was to implement size-based separation protocol of CTCs in CRC patients...
2017: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28051275/ratio-of-proliferation-markers-and-hsp90-gene-expression-as-a-predictor-of-pathological-complete-response-in-breast-cancer-neoadjuvant-chemotherapy
#11
Michal Jarzab, Monika Kowal, Wieslaw Bal, Malgorzata Oczko-Wojciechowska, Justyna Rembak-Szynkiewicz, Malgorzata Kowalska, Ewa Stobiecka, Ewa Chmielik, Tomasz Tyszkiewicz, Malgorzata Kaszuba, Elzbieta Nowicka, Barbara Lange, Agnieszka Czarniecka, Jolanta Krajewska, Alicja Dyla, Miroslaw Dobrut, Dariusz Lange, Barbara Jarzab, Barbara Bobek-Billewicz, Rafal Tarnawski
INTRODUCTION: Prediction of response to preoperative breast cancer chemotherapy may offer a substantial optimization of medical management of this disease. The most efficient prediction would be done a priori, before the start of chemotherapy and based on the biological features of patient and tumor. Numerous markers have been proposed but none of them has been applied as a routine. The role of MKI67 and HSP90 expression has been recently suggested to predict treatment sensitivity in HER2-positive breast cancer...
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/28051274/expression-of-cytokeratin-19-ck19-in-the-classical-subtype-of-papillary-thyroid-carcinoma-the-experience-of-one-center-in-the-silesian-region
#12
Krzysztof Kaliszewski, Dorota Diakowska, Marta Strutynska-Karpinska, Marta Rzeszutko, Jedrzej Grzegrzolka, Piotr Dziegiel, Beata Wojtczak, Krzysztof Sutkowski
INTRODUCTION: Cytokeratin-19 (CK19) is recognized as a reliable tumor marker of papillary thyroid carcinoma (PTC). The general prognosis in the classical subtype of PTC (CSTPTC) remains favorable, but some cases can be very aggressive. The aim of this study was to evaluate the localization and intensity of immunohistochemical CK19 expression in CSTPTC and its associations with the clinical and pathological characteristics of patients with CSTPTC in the Silesian region. MATERIAL AND METHODS: All the available clinical and histopathological data for 149 patients with CSTPTC from the Silesian region were retrospectively analyzed...
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/27966211/detection-of-pantothenic-acid-immunoreactive-neurons-in-the-rat-lateral-septal-nucleus-by-a-newly-developed-antibody
#13
Arturo Mangas, Javier Yajeya, Noelia Gonzalez, Marianne Husson, Michel Geffard, Rafael Coveñas
INTRODUCTION: The available immunohistochemical techniques have documented restricted distribution of vitamins in the mammalian brain. The aim of the study was to develop a highly specific antiserum directed against pantothenic acid to explore the presence of this vitamin in the mammalian brain. MATERIAL AND METHODS: According to ELISA tests, the anti-pantothenic acid antiserum used showed a good affinity (10-8 M) and specificity. The antiserum was raised in rabbits...
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/27966210/ghrelin-immunoreactive-cells-in-the-gastrointestinal-tract-of-hypertensive-rats
#14
Izabela Janiuk, Jerzy Kaleczyc, Irena Kasacka
INTRODUCTION: Ghrelin, an appetite-stimulating hormone secreted by the endocrine cells of the gastrointestinal (GI) tract, has recently been shown to affect the function of the cardiovascular system. This study aimed to assess the number and morphology of ghrelin-immunopositive (GhrIP) cells in the gastrointestinal tract of rats at different developmental phases of experimentally evoked renovascular hypertension. MATERIAL AND METHODS: The study involved 40 rats divided into two groups: control (C; n = 20) and rats with experimentally induced hypertension (EH; n = 20)...
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/27966209/doxycycline-down-regulates-matrix-metalloproteinase-expression-and-inhibits-nf-%C3%AE%C2%BAb-signaling-in-lps-induced-pc3-cells
#15
Deniz Ogut, Buket Reel, Ceren Gonen Korkmaz, Mehmet Zuhuri Arun, Serap Cilaker Micili, Bekir Ugur Ergur
INTRODUCTION: Matrix metalloproteinase enzymes (MMPs) play important role in inflammation, malignant cell proliferation, invasion and angiogenesis by mediating extracellular matrix degradation. Doxycycline, a synthetic tetracycline, behaves as a MMP inhibitor at a subantimicrobial dose and inhibits tumor cell proliferation, invasion and angiogenesis. The aberrant activity of nuclear factor kappa B (NF-κB) causes activation of MMPs and thereby proliferation and invasion of cancer cells...
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/27845500/potentially-positive-ageing-related-variations-of-medial-smooth-muscle-cells-in-the-saphenous-veins-used-as-aortocoronary-bypass-grafts
#16
Bartlomiej Perek, Agnieszka Malinska, Jerzy Gasowski, Danuta Ostalska-Nowicka, Anna Perek, Marek Jemielity, Maciej Zabel, Michal Nowicki
INTRODUCTION: Currently, elderly people constitute a large proportion of patients undergoing coronary artery bypass grafting (CABG). Activated smooth muscle cells in the tunica media of saphenous vein (SV) grafts are thought to play a key role in the formation of neointima and development of occluding atherosclerotic plaques. The aim of this study was to identify ageing-related variations in the expression of the smooth muscle cells pro-teins that may impact on patency rate of the grafts and the CABG outcomes...
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/27766610/knockdown-of-sucla2-decreases-the-viability-of-mouse-spermatocytes-by-inducing-apoptosis-through-injury-of-the-mitochondrial-function-of-cells
#17
Shaoping Huang, Jing Wang, Lei Wang
INTRODUCTION: Sucla2, a β subunit of succinyl coenzyme A synthase, is located in the mitochondrial matrix. Sucla2 catalyzes the reversible synthesis of succinate and adenosine triphosphate (ATP) in the tricarboxylic acid cycle. Sucla2 expression was found to be correlated with the capacitation of boar spermatozoa. We have previously reported that Sucla2 was decreased in the testes of rats with spermatogenesis failure after exposure to endocrine disruptor BDE47. Yet, the expression model of Sucla2 in spermatogenesis and the function of Sucla2 in spermatogenic cells are still unclear...
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/27766609/professor-aleksandra-krygier-stoja%C3%A5-owska-1923-2015
#18
Zofia Bielanska-Osuchowska, Barbara Bilinska, Maria Chosia, Jerzy Kawiak, Andrzej Lukaszyk
No abstract text is available yet for this article.
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/27696338/influence-of-igf1-tgf%C3%AE-1-bfgf-and-g-csf-m-csf-on-the-mrna-levels-of-selected-matrix-proteins-cytokines-metalloproteinase-3-and-timp1-in-rat-synovial-membrane-cells
#19
Anna Osiecka-Iwan, Stanislaw Moskalewski, Anna Hyc
INTRODUCTION: We have previously observed that rat synovial membranes incubated in medium containing cartilage interstitial fluid (CIF) responded by changes in the expression of hyaluronan synthases (HAS1 and HAS2), collagen type I, versican, aggrecan, lubricin, matrix metalloproteinases 2 and 3 (MMP2 and MMP3), tissue inhibitors of metalloproteinases (TIMP1, 2 and 3), transforming growth factor β1 (TGFβ1), tumor necrosis factor (TNF), interleukin (IL) 1β and IL-6. The aim of the study was to evaluate the influence of particular cytokines found in CIF on the gene expression of extracellular matrix (ECM) proteins in synovial membrane cells...
2016: Folia Histochemica et Cytobiologica
https://www.readbyqxmd.com/read/27654017/decreased-expression-of-p73-in-colorectal-cancer
#20
Anna Kotulak, Agata Wronska, Jaroslaw Kobiela, Janusz Godlewski, Marcin Stanislawowski, Piotr Wierzbicki
INTRODUCTION: The colorectal cancer (CRC) is one of the most frequent cancer in Poland and worldwide. This disease is characterized by distinct genetic alterations. p73 belongs to the p53 gene family; however, its role in the pathogenesis of CRC has not been completely understood. p73 gene encodes several mRNA variants and protein isoforms with its longest and fully functional p73a (mRNA) and TAp73a (protein) isoform. The aim of the study was to investigate p73 gene expression at the mRNA (p73a) and protein (TAp73a) levels in CRC...
2016: Folia Histochemica et Cytobiologica
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