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Acta Histochemica

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https://www.readbyqxmd.com/read/29146005/bone-marrow-adipocytes-in-haematological-malignancies
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
https://www.readbyqxmd.com/read/29055508/distribution-of-mesotocin-immunoreactive-neurons-in-the-brain-of-the-male-native-thai-chicken
#7
Boonyarit Kamkrathok, Tom E Porter, Mohamed E El Halawani, Yupaporn Chaiseha
Mesotocin (MT), a homolog of oxytocin (OT) in mammals, is a nonapeptide neurohypophysial hormone that is mainly synthesized in specific neuronal groups within the hypothalamus and released from the posterior pituitary gland in amphibian, reptilian, and avian species. MT is associated with the neuroendocrine regulation of reproductive cycle and maternal behaviors in female native Thai chickens. Male birds exhibit parental behaviors as well. However, there are limited data regarding the role(s) of the MTergic system in males...
October 18, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29054283/desmin-expression-profile-in-reactive-astrocytes-in-the-3-nitropropionic-acid-lesioned-striatum-of-rat-characterization-and-comparison-with-glial-fibrillary-acidic-protein-and-nestin
#8
Jeong-Heon Choi, Tae-Ryong Riew, Hong Lim Kim, Xuyan Jin, Mun-Yong Lee
Desmin, a muscle-specific, type-III intermediate-filament protein, is reportedly expressed in astrocytes in the central nervous system. These cells become reactive astrocytes in response to brain injuries. To elucidate whether desmin is involved in this process, we examined the spatiotemporal expression profiles of desmin and their relationship with two astroglial intermediate filaments, glial fibrillary acidic protein (GFAP) and nestin, in the striatum of rats treated with the mitochondrial toxin 3-nitropropionic acid (3-NP)...
October 18, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29037777/multipotency-of-skeletal-muscle-stem-cells-on-their-native-substrate-and-the-expression-of-connexin-43-during-adoption-of-adipogenic-and-osteogenic-fate
#9
Mohamed I Elashry, Manuela Heimann, Sabine Wenisch, Ketan Patel, Stefan Arnhold
Muscle regeneration is performed by resident muscle stem cells called satellite cells (SC). However they are multipotent, being able to adopt adipogenic and osteogenic fate under the correct stimuli. Since SC behavior can be regulated by the extra-cellular matrix, we examined the robustness of the myogenic programme of SC on their native substrate-the surface of a myofiber. We show that the native substrate supports myogenic differentiation judged by the expression of members of the Myogenic Determination Factor (MRF) family...
October 13, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/29029805/glycan-diversity-in-the-vomeronasal-organ-of-the-korean-roe-deer-capreolus-pygargus-a-lectin-histochemical-study
#10
Taekyun Shin, Jeongtae Kim, Yuna Choi, Meejung Ahn
Glycans in the epithelium play an important role in cell-to-cell communication and adhesion. No detailed evaluation of glycoconjugates in the vomeronasal organs (VNO) of the roe deer has been published previously. The aim of this study was to characterize glycan epitopes in the vomeronasal sensory epithelium (VSE) and non-sensory epithelium (VNSE) using lectin histochemistry. Glycan epitopes identified by lectin histochemistry were grouped as follows: N-acetylglucosamine (s-WGA, WGA, BSL-II, DSL, LEL, STL), mannose (Con A, LCA, PSA), galactose (RCA120, BSL-I, Jacalin, PNA, ECL), N-acetylgalactosamine (VVA, DBA, SBA, and SJA), fucose (UEA-I) and complex type N-glycan (PHA-E and PHA-L) groups...
October 10, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28967429/the-effects-of-knee-immobilization-on-marrow-adipocyte-hyperplasia-and-hypertrophy-at-the-proximal-rat-tibia-epiphysis
#11
Guy Trudel, Hans K Uhthoff, Sanjay Solanki, Odette Laneuville
Marrow adipose deposition is observed during aging and in association with extended periods of immobility. The objective of this study was to determine the contribution of adipocyte hypertrophy and hyperplasia to bone marrow fat deposition induced by immobilization of the rat knee joint for 2, 4, 16 or 32 weeks. Histomorphometric analyses compared immobilized to sham-operated proximal tibia from age and gender matched rats to assess the contribution of aging and duration of immobilization on the number and size of marrow adipocytes...
September 26, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28947260/progesterone-down-regulates-slit-robo-expression-in-mouse-corpus-luteum
#12
Xuejing Zhang, Meiyan Mi, Weili Hao, Qiongying Fan, Bulang Gao
BACKGROUND: Progesterone produced by the corpus luteum (CL) is essential for preparation, implantation and maintenance of gestation. Furthermore, progesterone plays a protective role against luteolysis in rodents. It has been reported that Slit/Robo family members expressed in the CL and involved in prostaglandin F2α (PGF2α) induced luteolysis. However, the interactions between progesterone and Slits/Robos in CL are not clear. This study was designed to examine whether or not luteolysis is regulated by the interaction of progesterone and Slits/Robos in mouse CL...
September 22, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28943001/melatonin-modulates-monochromatic-light-induced-melatonin-receptor-expression-in-the-hypothalamus-of-chicks
#13
Liwei Zhang, Funing Chen, Jing Cao, Yulan Dong, Zixu Wang, Yaoxing Chen
To study the mechanism of the effect of monochromatic light on physiological function in chicken, a total of 192 newly hatched chicks were randomly divided into intact, sham-operated and pinealectomy groups then exposed to white light (WL), red light (RL), green light (GL) and blue light (BL) using a light-emitting diode (LED) system for two weeks. At P14, the hypothalami were immediately collected for immunohistochemical staining of melatonin receptor subtypes (Mel1a and Mel1b) and detection of Mel1a and Mel1b expressions using RT-PCR and western blot...
September 21, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28943000/histological-and-immunohistochemical-study-of-cardiac-telocytes-in-a-rat-model-of-isoproterenol-induced-myocardial-infarction-with-a-reference-to-the-effect-of-grape-seed-extract
#14
Mai Salah Nour, Nahla Reda Sarhan, Shireen A Mazroa, Salwa A Gawish
INTRODUCTION: Cardiac telocytes (TCs) represent a unique type of cells that make a supportive network for stem cells that contribute in cardiac renewal, but their role during myocardial infarction (MI) is not clear. Grape seed extract (GSE) is a powerful natural antioxidant. AIM OF THE WORK: Quantitative study of cardiac TCs in a rat model of Isoproterenol (ISO)-induced MI, and to evaluate the effect of GSE on TCs and MI progression. MATERIALS AND METHODS: Seventy adult male albino rats were assigned into 4 groups; group I; control rats, group II received GSE (100mg/kg/day) dissolved in distilled water orally, group III received 2 intra-peritoneal injections of 85mg/kg ISO dissolved in saline on 14th and 15th day to induce MI, and group IV received GSE and ISO...
September 21, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28923316/different-combinations-of-maternal-and-postnatal-diet-are-reflected-in-changes-of-hepatic-parenchyma-and-hepatic-tnf-alpha-expression-in-male-rat-offspring
#15
Željka Perić Kačarević, Anđela Grgić, Darija Šnajder, Nikola Bijelić, Tatjana Belovari, Olga Cvijanović, Valerija Blažičević, Radivoje Radić
Obesity is related to increased TNF-alpha production in different tissues. TNF-alpha is connected to mitochondrial dysfunction in the liver and also development of fatty infiltration of the liver. Also, postnatal change from normal to high-fat diet causes a significant increase in TNF-alpha serum levels. The aim of this research was to determine how maternal diet and switching male offspring to a different dietary regime after lactation influences rat liver. Ten female Sprague Dawley rats at nine weeks of age were randomly divided in two groups and fed either standard laboratory chow or high-fat diet during six weeks, and then mated with the same male subject...
September 15, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28919179/effects-of-nest-deprivation-on-hypothalamic-mesotocin-in-incubating-native-thai-hens-gallus-domesticus
#16
Panpradap Sinpru, Tom E Porter, Mohamed E El Halawani, Yupaporn Chaiseha
Avian mesotocin (MT) is homologous to oxytocin in mammals. Native Thai chickens (Gallus domesticus) strongly express maternal behaviors including incubation and rearing. However, the role of MT during incubation behavior has never been studied. The objective of this study was to determine the physiological function(s) of the MTergic system in incubation behavior in native Thai chickens. The brains were collected from incubating (INC) and nest-deprived (ND) hens at different time points (days 3, 6, 8, 10, 14, 18, and 21; n=6)...
September 15, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28919178/the-presence-of-abalone-egg-laying-hormone-like-peptide-in-the-central-nervous-system-and-ovary-of-the-spotted-babylon-babylonia-areolata
#17
Jirawat Saetan, Piyakorn Boonyoung, Uraporn Vongvatcharanon, Thanapong Kruangkum, Kanjana Khornchatri, Pinij Thaweethamsewee, Prasert Sobhon, Prapee Sretarugsa
Recently, the neuronal classification of the ivory shell Spotted Babylon, Babylonia areolata, was readily demonstrated. Regarding its importance as marine economic molluscan species, the attempt to understand the neuroendocrine regulation is necessary. This study firstly demonstrated the neurosecretory cells as well as the existence and distribution of the egg-laying hormone (ELH)-like peptide in the central nervous system (CNS) and ovary of the B. areolata. The neurosecretory cell was characterized by the cytoplasmic purple dot-like structure as stained by the Gomori's paraldehyde fuchsin...
September 14, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28912046/seasonal-expression-of-luteinizing-hormone-receptor-and-follicle-stimulating-hormone-receptor-in-testes-of-the-wild-ground-squirrels-citellus-dauricus-brandt
#18
Junjie Wang, Ying Wang, Manyu Zhu, Fengwei Zhang, Xia Sheng, Haolin Zhang, Yingying Han, Zhengrong Yuan, Qiang Weng
The objective of this study was to evaluate whether luteinizing hormone (LH), follicle stimulating hormone (FSH) and their receptors luteinizing hormone receptor (LHR) and follicle stimulating hormone receptor (FSHR) play roles in the seasonal spermatogenesis of the wild ground squirrels. To that end, we characterized the testicular immunolocalization of LHR and FSHR, their expression on both mRNA and protein levels, as well as serum concentrations of LH and FSH in male wild ground squirrels throughout the annual reproductive cycle...
September 11, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28886869/immunohistochemical-study-of-arginases-1-and-2-in-the-olfactory-bulbs-of-the-korean-roe-deer-capreolus-pygargus
#19
Jeongtae Kim, Meejung Ahn, Yuna Choi, Ji-Yeon Hyeon, Taekyun Shin
Arginases are enzymes of the urea cycle that catalyze the hydrolysis of l-arginine to ornithine and urea. The enzymes are core components of the arginine-ornithine-glutamate-γ-amino butyric acid pathway of the central nervous system. In the present study, we immunohistochemically determined the localization of arginase 1 and 2 in the olfactory bulb (OB) of the roe dear (Capreolus pygargus). Reverse transcription PCR revealed that the mRNAs encoding both arginase 1 and 2 were expressed in the OB. Arginase 1 was localized to olfactory nerve axons, calcitonin gene-related peptide-positive mitral/tufted cells (excitatory neurons), and glutamate acid decarboxylase 65/67-immunopositive periglomerular cells of the main olfactory bulb...
September 5, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28867597/overexpression-of-suppressors-of-cytokine-signaling-1-regulate-the-proliferation-and-differentiation-of-rat-derived-neural-stem-cells
#20
Meng Cui, Xin-Long Ma, Jie Sun, Jin-Quan He, Lin Shen, Fang-Guo Li
Neural stem cells are a reliable resource in various neural tissue repair and neurodegenerative diseases. Increasing evidence has demonstrated that Suppressor of cytokine signaling proteins (SOCS) was involved in the nervous system development. The universality and diversity of SOCS also suggested their important roles in neurogenesis and nerve regeneration. In this study, we employed a lentiviral vector to investigate the impacts of overexpression SOCS1 on the proliferation and differentiation of rat-derived NSCs...
August 31, 2017: Acta Histochemica
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