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Acta Histochemica

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https://www.readbyqxmd.com/read/29325972/antioxidant-activity-of-cape-caffeic-acid-phenethyl-ester-in-vitro-can-protect-human-sperm-deoxyribonucleic-acid-from-oxidative-damage
#1
Şule Ayla, Gülden Tunalı, Bülent E Bilgiç, Kenan Sofuoğlu, A Arman Özdemir, Gamze Tanrıverdi, Semra Özdemir, B Cem Soner, Bahar Öztürk, Serçin Karahüseyinoğlu, Esra Güler Aslan, Ismail Seçkin
PURPOSE: Sperm processing (e.g., centrifugation) used in preparation for assisted reproduction can result in excessive generation of reactive oxygen species (ROS) and potential sperm damage. The use of antioxidants during sperm processing has been shown to prevent iatrogenic sperm damage, including DNA damage. In this study, we evaluated the effect of caffeic acid phenethyl ester (CAPE) on oxidative stress mediated sperm dysfunction and DNA damage. METHODS: Semen samples were obtained to liquefy at room temperature...
January 8, 2018: Acta Histochemica
https://www.readbyqxmd.com/read/29287611/distribution-of-nerve-fibers-during-the-development-of-palatine-glands-in-rats
#2
Zaki Hakami
BACKGROUND: Salivary gland maturation and function are modulated by the nervous system. Nevertheless, little is known about salivary gland innervation during development, particularly minor salivary glands. This study investigated the development of the innervation of the palatine glands of rat. MATERIALS AND METHODS: Frozen sections of rat palatine glands at different stages were immunohistochemically labeled for detection of the general nerve markers protein gene product 9...
December 26, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29277349/diabetes-mellitus-induction-effect-of-different-streptozotocin-doses-on-male-reproductive-parameters
#3
Temidayo S Omolaoye, Bongekile T Skosana, Stefan S du Plessis
Diabetes mellitus (DM) is reported to be involved in male reproductive impairment, and its impact is evident in the increased prevalence of infertility. Various studies have reported that a single parenteral injection of <40 mg/kg Streptozotocin (STZ) is ineffective in ablating pancreatic β-cells and creating a rat model to investigate the effect of DM on the male reproductive system. This study therefore aims to validate these claims. Adult male Wistar rats received either a single intraperitoneal injection of STZ (30 mg/kg or 60 mg/kg) or saline (0...
December 22, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29249451/mir-199-3p-replacement-affects-e-cadherin-expression-through-notch1-targeting-in-hepatocellular-carcinoma
#4
Catia Giovannini, Francesca Fornari, Rossella Dallo, Martina Gagliardi, Elisa Nipoti, Francesco Vasuri, Camelia Alexandra Coadă, Matteo Ravaioli, Luigi Bolondi, Laura Gramantieri
Hepatocellular carcinoma (HCC) represents the second cause of cancer-related mortality worldwide and is associated with poor prognosis, due to a high recurrence rate after curative treatments and a drug resistance phenotype. In this scenario, the identification of innovative and effective therapeutic strategies is an unmet clinical need. The safety and efficacy of microRNA (miRNA) mediated approaches in preclinical models and clinical trials have been widely described in cancer. MicroRNA-199a downregulation is a common feature of HCC where its reduced expression contributes to mTOR and c-Met pathways activation...
December 14, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29246387/confirmation-of-the-immunoreactivity-of-monoclonal-anti-human-c-terminal-egfr-antibodies-in-bronze-corydoras-corydoras-aeneus-callichthyidae-teleostei-by-western-blot-method
#5
Jennifer Mytych, Leszek Satora, Katarzyna Kozioł
Bronze corydoras (Corydoras aeneus) uses the distal part of the intestine as accessory respiratory organ. Our previous study showed the presence of epidermal growth factor receptor (EGFR) cytoplasmic domain in the digestive tract of the bronze corydoras. In this study, using Western Blot method, we validated the results presented in the previous research. In detail, results of Western Blot analysis on digestive and respiratory part of bronze corydoras intestine homogenates confirmed the immunoreactivity of anti-cytoplasmic domain (C-terminal) human EGFR antibodies with protein band of approximately 180kDa (EGFR molecular weight)...
December 12, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29241633/polyploidy-and-nuclear-phenotype-characteristics-of-cardiomyocytes-from-diabetic-adult-and-normoglycemic-aged-mice
#6
Isabela S Silva, Flávia G Ghiraldini, Giovana M B Veronezi, Maria Luiza S Mello
The frequency of polyploid nuclei in the aging human heart is in sharp contrast with that in the human liver. An inverse pattern exists between the mouse heart and liver cells. Ploidy degrees in mouse hepatocytes under hyperglycemic conditions are elevated to higher levels than those in aged hepatocytes. In this study, image analysis cytometry was used to investigate the effect of diabetes and aging on Feulgen-DNA quantities, ploidy degrees, nuclear shapes and chromatin texture in mouse cardiomyocytes compared to previously reported data for mouse hepatocytes...
December 11, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29224922/neurons-and-satellite-glial-cells-in-adult-rat-lumbar-dorsal-root-ganglia-express-connexin-36
#7
E Martha Pérez Armendariz, Monica Norcini, Beatriz Hernández-Tellez, Andrés Castell-Rodríguez, Cristina Coronel-Cruz, Raquel Guerrero Alquicira, Alexandra Sideris, Esperanza Recio-Pinto
Previous studies have shown that following peripheral nerve injury there was a downregulation of the gap junction protein connexin 36 (Cx36) in the spinal cord; however, it is not known whether Cx36 protein is expressed in the dorsal root ganglia (DRGs), nor if its levels are altered following peripheral nerve injuries. Here we address these aspects in the adult rat lumbar DRG. Cx36 mRNA was detected using qRT-PCR, and Cx36 protein was identified in DRG sections using immunohistochemistry (IHC) and immunofluorescence (IF)...
December 7, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29224921/effects-of-acrylamide-on-oxidant-antioxidant-parameters-and-cyp2e1-expression-in-rat-pancreatic-endocrine-cells
#8
Jelena Marković, Milena Stošić, Danijela Kojić, Milica Matavulj
Oxidative stress is one of the principle mechanism of acrylamide-induced toxicity. Acrylamide is metabolized by cytochrome P450 2E1 (CYP2E1) to glycidamide or by direct conjugation with glutathione. Bearing in mind that up to now the effects of acrylamide on oxidative stress status and CYP2E1 level in endocrine pancreas have not been studied we performed qualitative and quantitative immunohistochemical evaluation of inducible nitric oxide synthase (iNOS), superoxide dismutase 1 (SOD1), superoxide dismutase 2 (SOD2), catalase (CAT) and CYP2E1 expression in islets of Langerhans of rats subchronically treated with 25 or 50mg/kg bw of acrylamide...
December 7, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29217107/the-underlying-physiological-basis-of-the-desert-rodent-meriones-shawi-s-survival-to-prolonged-water-deprivation-central-vasopressin-regulation-on-peripheral-kidney-water-channels-aqps-2
#9
A Elgot, O El Hiba, M Belkouch, H Gamrani
Meriones shawi (M. shawi) is a particular semi-desert rodent known by its resistance to long periods of thirst. The aim of the present investigation is to clarify the underlying mechanisms allowing M. shawi to resist to hard conditions of dehydration. For this reason we used two different approaches: i) a morphometric study, which consists in measuring the effect of dehydration on body and kidneys weights as well as the report kidney weight/body weight, ii) By immunohistochemistry, we proceed to study the effect of dehydration on the immunoreactivity of central vasopressin (AVP) and the kidney aquaporin-2 (AQP-2) which is a channel protein that allows water to permeate across cell membranes...
December 4, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29173982/silencing-of-cemip-suppresses-wnt-%C3%AE-catenin-snail-signaling-transduction-and-inhibits-emt-program-of-colorectal-cancer-cells
#10
Guodong Liang, Xuedong Fang, Yubo Yang, Yan Song
Cell migration inducing hyaluronan binding protein (CEMIP) is a hyaluronic acid binding protein, the abnormal elevation of which is suggested as a contributor in the carcinogenesis of colorectal cancer (CRC). Cancer cells lose their adhesive properties and acquire an enhanced mobility by undergoing epithelial-mesenchymal transition (EMT). This study is performed to investigate whether and how CEMIP orchestrates the EMT process of CRC cells. To avoid the unexpected off-target effects possibly caused by one single shRNA, two shRNAs targeting different mRNA regions of CEMIP gene were used to knock down the mRNA and protein expression of CEMIP...
November 21, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29169694/vitamin-e-can-improve-behavioral-tests-impairment-cell-loss-and-dendrite-changes-in-rats-medial-prefrontal-cortex-induced-by-acceptable-daily-dose-of-aspartame
#11
Ali Rafati, Ali Noorafshan, Mahboubeh Jahangir, Leila Hosseini, Saied Karbalay-Doust
Aspartame is an artificial sweetener used in about 6000 sugar-free products. Aspartame consumption could be associated with various neurological disorders. This study aimed to evaluate the effect of aspartame onmedial Prefrontal Cortex (mPFC) as well as neuroprotective effects of vitamin E. The rats were divided into seven groups, including distilled water, corn oil, vitamin E (100mg/kg/day), and low (acceptable daily dose) and high doses of aspartame (40 and 200mg/kg/day) respectively, with or without vitamin E consumption, for 8 weeks...
November 21, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29169695/immunohistochemical-analysis-of-the-distribution-of-molecules-involved-in-ionic-and-ph-regulation-in-the-lancelet-branchiostoma-floridae-hubbs-1922
#12
Ivan Cuoghi, Clara Lazzaretti, Mauro Mandrioli, Lucrezia Mola, Aurora Pederzoli
The aim of present work is to analyse the distribution of carbonic anhydrase II (CAII), cystic fibrosis transmembrane regulator (CFTR), vacuolar-type H(+)-ATPase (V-H(+)-ATPase), Na(+)/K(+) ATPase, Na(+)/H(+) exchanger (NHE) and SLC26A6 (solute carrier family 26, member 6), also known as pendrin protein, in the lancelet Branchiostoma floridae in order to go in depth in the evolution of osmoregulation and pH regulation in Chordates. In view of their phylogenetic position, lancelets may indeed provide a critical point of reference for studies on osmoregulation evolution in Chordates...
November 20, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29169693/specific-localization-of-manserin-peptide-in-the-rat-carotid-body
#13
Michiru Ida-Eto, Takeshi Ohkawara, Masaaki Narita
The carotid body, located at the bifurcation of the common carotid artery, is a small sensory organ that detects changes in oxygen concentration and plays a vital role in controlling respiration. Although several molecules, such as neurotransmitters and neuropeptides, are involved in the regulation of the respiratory system, their detailed mechanisms have not been established yet. This study identifies that the presence of manserin, a neuropeptide, in the carotid body may play a crucial role in regulating respiration...
November 20, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29153593/the-molecular-phenotypes-of-ureteral-telocytes-are-layer-specific
#14
M A Dobra, A D Vrapciu, F Pop, N Petre, M C Rusu
Telocytes (TC) are the delicate interstitial (stromal) cells defined by their long, thin and moniliform processes termed telopodes. Numerous studies determined that different subsets of telocytes populate almost all tissues and attempted to relate these subsets to various functions, from cell signaling to tissue repair and regeneration. Extremely few studies addressed the urinary tract though few data on the molecular pattern of the urinary TCs actually exist. We therefore hypothesized that subsets of urinary TCs co-localize within the human ureter and we aimed at performing an immunohistochemical study to evaluate the tissue-specific molecular pattern of TCs...
November 16, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29146005/bone-marrow-adipocytes-in-haematological-malignancies
#15
Ewa Frączak, Mateusz Olbromski, Aleksandra Piotrowska, Natalia Glatzel-Plucińska, Piotr Dzięgiel, Jarosław Dybko, Kazimierz Kuliczkowski, Tomasz Wróbel
Bone marrow adipocytes (BMAs) derived from mesenchymal stem cells (MSC) are an active and significant element of the bone marrow microenvironment. They are involved in metabolic functions, complex interactions with other stromal cells, and in the development and progression of tumours. Currently, there is little data regarding the role of BMAs in haematological malignancies. Due to this, we have attempted to characterise the BMAs in these malignancies in terms of quantity and morphology. Our study included 30 patients aged 22-76 with myelo- (n=17) and lymphoproliferative malignancies (n=13), both with and without bone marrow infiltration...
November 13, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29132690/cyclin-dependent-kinase-5-regulates-mapk-erk-signaling-in-the-skin-of-mice
#16
Xuexian Liu, Pengqian Zhang, Kaiyuan Ji, Junzhen Zhang, Shanshan Yang, Bin Du, Shuaipeng Hu, Ruiwen Fan
Cyclin-dependent kinase 5 (CDK5) is a proline-directed serine/threonine kinase that has been shown to play important roles in many tissues except the nervous system. We previously reported that CDK5 showed differential expression in the transcriptome profiles of the skin of alpacas with different hair colors. To understand the functional role of CDK5 in hair color determination, we constructed CDK5-knockdown mice and identified the effect on the mitogen-activated protein kinase (MAPK) pathway in the mouse skin...
November 11, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29129327/quercetin-protects-jejunal-mucosa-from-experimental-intestinal-ischemia-reperfusion-injury-by-activation-of-cd68-positive-cells
#17
Kristina Curgali, Stefan Toth, Zuzana Jonecova, Milan Maretta, Theodoros Kalpakidis, Ivana Petriskova, Matus Kusnier, Jan Soltes, Martin Svana, Martin Caprnda, Delian Delev, Luis Rodrigo, Eva Mechirova, Peter Kruzliak
The aim of our study was to analyse the possible protective effect of quercetin application during the jejunal ischemia-reperfusion injury (IRI) in rats. Quercetin was administered intraperitoneally 30min before 1h ischemia of superior mesenteric artery with following 24h lasting reperfusion period. The male specific pathogen-free (SPF) Charles River Wistar rats were used. In the group with applied quercetin, the significantly increased (p<0.001) levels of anti-inflammatory cytokine IL10 were observed both in the blood serum and jejunal tissue...
November 9, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29128095/olive-oil-polyphenols-extracts-inhibit-inflammatory-markers-in-j774a-1-murine-macrophages-and-scavenge-free-radicals
#18
Marwa Abdallah, Stefania Marzocco, Simona Adesso, Mokhtar Zarrouk, Mokhtar Guerfel
Here we evaluate the olive oil antiradical and anti-inflammatory potential through its polyphenols extracts and examine the influence of olive maturity on olive oil quality properties, polyphenols composition and biological potentials. Samples have been obtained from minor Tunisian olive cultivars (Chemchali, Fouji and Zarrazi) at different maturity indices. Principal quality properties were evaluated and polyphenols analysis was carried out by Folin Ciocalteu reagent and HPLC-UV-MS. Antiradical activity was examined by DPPH and FRAP scavenging assays while J774A...
November 8, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29107325/stemness-distinctions-between-the-ectomesenchymal-stem-cells-from-neonatal-and-adult-mice
#19
Qian Chen, Huangao Zhou, Pingping Hu
Ectomesenchymal stem cells (EMSCs), a type of adult stem cells derived from cranial neural crest, can be non-invasively harvested from respiratory mucosa and play vital roles in therapies based on their stemness. However, whether donor age has any impact on the stemness of EMSCs remains elusive and is essential for EMSCs-based therapies. To address this, we first cultivated EMSCs from neonatal mice aged 1 week and adult mice aged 3 months or 6 months, and then compared their morphology, proliferative capacity, and pluripotency through various induced differentiation assays...
October 27, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29107326/adult-hippocampal-neurogenesis-in-neuropathic-pain-and-alkyl-glycerol-ethers-treatment
#20
Anna A Tyrtyshnaia, Igor V Manzhulo, Ruslan M Sultanov, Ekaterina V Ermolenko
Neuropathic pain manifested by a number of sensory symptoms is often accompanied by disorders of higher nervous activity, such as memory impairment, depression, anxiety, anhedonia, etc. This emphasizes the involvement of supraspinal structures including the hippocampus in neuropathic pain pathogenesis. In the present study, we focused on the impact of chronic neuropathic pain on hippocampal neurogenesis and microglial state. In addition, we test the effect of alkyl glycerol ethers on hippocampal neuronal and microglial plasticity as well as behavioral parameters...
October 26, 2017: Acta Histochemica
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