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https://www.readbyqxmd.com/read/28080173/evaluation-of-long-term-cryostorage-of-brain-tissue-sections-for-quantitative-histochemistry
#1
Larissa I Estrada, Amy A Robinson, Ana C Amaral, Eustathia L Giannaris, Nadine C Heyworth, Farzad Mortazavi, Laura B Ngwenya, Debra E Roberts, Howard J Cabral, Ronald J Killiany, Douglas L Rosene
Storage of tissue sections for long periods allows multiple samples, acquired over months or years, to be processed together, in the same reagents, for quantitative histochemical studies. Protocols for freezer storage of free-floating frozen sections using sucrose with different additives have been reported and assert that storage has no effect on histochemistry, but no quantitative support has been provided. The present study analyzed the efficacy of long-term storage of brain tissue sections at -80C in buffered 15% glycerol...
January 1, 2017: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/28078066/use-it-or-lose-it-tonic-activity-of-slow-motoneurons-promotes-their-survival-and-preferentially-increases-slow-fiber-type-groupings-in-muscles-of-old-lifelong-recreational-sportsmen
#2
Simone Mosole, Ugo Carraro, Helmut Kern, Stefan Loefler, Sandra Zampieri
: Histochemistry, immuno-histochemistry, gel electrophoresis of single muscle fibers and electromyography of aging muscles and nerves suggest that: i) denervation contributes to muscle atrophy, ii) impaired mobility accelerates the process, and iii) lifelong running protects against loss of motor units. Recent corroborating results on the muscle effects of Functional Electrical Stimulation (FES) of aged muscles will be also mentioned, but we will in particular discuss how and why a lifelong increased physical activity sustains reinnervation of muscle fibers...
September 15, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/28076939/is-there-still-room-for-novelty-in-histochemical-papers
#3
Carlo Pellicciari
Histochemistry continues to be widely applied in biomedical research, being nowadays mostly addressed to detect and locate single molecules or molecular complexes inside cells and tissues, and to relate structural organization and function at the high resolution of the more advanced microscopical techniques. In the attempt to see whether histochemical novelties may be found in the recent literature, the articles published in the European Journal of Histochemistry in the period 2014-2016 have been reviewed. In the majority of the published papers, standardized methods have been preferred by scientists to make their results reliably comparable with the data in the literature, but  many papers (approximately one fourth of the published articles) described novel histochemical methods and procedures...
December 16, 2016: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28076938/transmission-electron-microscopy-for-nanomedicine-novel-applications-for-long-established-techniques
#4
Manuela Malatesta
During the last twenty years, the research in nanoscience and nanotechnology has dramatically increased and, in the last decade, the interest has progressively been oriented towards biomedical applications, giving rise to a new field termed nanomedicine. Transmis - sion electron microscopy is a valuable technique not only for the thorough physico-chemical characterization of newly synthesized nanoparticulates, but especially to explore the effects of nanocomposites on biological systems, providing essential information for the development of efficient therapeutic and diagnostic strategies...
December 9, 2016: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28076937/in-vivo-imaging-techniques-a-new-era-for-histochemical-analysis
#5
A Busato, P Fumene Feruglio, P P Parnigotto, P Marzola, A Sbarbati
In vivo imaging techniques can be integrated with classical histochemistry to create an actual histochemistry of water. In particular, Magnetic Resonance Imaging (MRI), an imaging technique primarily used as diagnostic tool in clinical/preclinical research, has excellent anatomical resolution, unlimited penetration depth and intrinsic soft tissue contrast. Thanks to the technological development, MRI is not only capable to provide morphological information but also and more interestingly functional, biophysical and molecular...
November 28, 2016: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28076929/non-invasive-imaging-demonstrates-clinical-features-of-ankylosing-spondylitis-in-a-rat-adjuvant-model-a-case-study
#6
N Accart, J Dawson, F Kolbinger, I Kramer, N Beckmann
Ankylosing spondylitis is a common rheumatic disease involving both inflammatory erosive osteopenia and bony overgrowth. Main disease features are recapitulated in small rodents challenged with complete Freund's adjuvant. MRI was used to follow longitudinally in vivo changes induced in the rat spine and micro-CT as terminal assessment of bone damage. Histochemistry methods were used to validate these imaging modalities in view of preclinical drug testing and translational applications of spine imaging. Animals were examined using a 3D fat-suppressed gradient-echo sequence, following the injection of gadolinium...
November 2, 2016: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28060373/small-round-blue-cell-tumors-of-the-sinonasal-tract-a-differential-diagnosis-approach
#7
Lester Dr Thompson
One of the most challenging diagnostic categories within tumors of the sinonasal tract is the small round blue cell tumors. Biopsies are usually small and limited, resulting in considerable diagnostic difficulty for practicing surgical pathologists. These tumors share several overlapping histologic and immunophenotypic findings while also showing considerable variation within and between cases. Specific tumor site of origin, imaging findings, and clinical findings must be combined with the histology and pertinent ancillary studies if the correct diagnosis is to be reached...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28045098/effects-of-elevated-%C3%AE-estradiol-levels-on-the-functional-morphology-of-the-testis-new-insights
#8
Myles Leavy, Matthias Trottmann, Bernhard Liedl, Sven Reese, Christian Stief, Benjamin Freitag, John Baugh, Giulio Spagnoli, Sabine Kölle
Elevated estradiol levels are correlated with male infertility. Causes of hyperestrogenism include diseases of the adrenal cortex, testis or medications affecting the hypothalamus-pituitary-gonadal axis. The aim of our study was to elucidate the effects of estradiol treatment on testicular cellular morphology and function, with reference to the treatment regimen received. Testes samples (n = 9) were obtained post-orchiectomy from male-to-female transsexuals within the age range of 26-52 years. Each patient had a minimum of 1-6 years estradiol treatment...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28035364/cyr61-ccn1-stimulates-proliferation-and-differentiation-of-osteoblasts-in-vitro-and-contributes-to-bone-remodeling-in-vivo-in-myeloma-bone-disease
#9
Hui Liu, Fengping Peng, Zhaoyun Liu, Fengjuan Jiang, Lijuan Li, Shan Gao, Guojin Wang, Jia Song, Erbao Ruan, Zonghong Shao, Rong Fu
Cysteine-rich 61 (CYR61/CCN1), a secreted protein in bone marrow (BM) microenvironment, has diverse effects on many cellular activities such as growth and differentiation. However, the effect of CCN1 on osteoblasts (OBs) in myeloma bone disease remains unclear. In our study, the level of CCN1 in multiple myeloma (MM) patients was detected by ELISA and RT-PCR. The proliferation and differentiation of OBs from MM patients were observed after stimulated by CCN1 in vitro. The myeloma cells transduced with CYR61 gene (RPMI‑8226/CYR61) were injected in a mouse model to evaluate the efficacy of CCN1 in vivo and compare with zoledronic acid...
December 22, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/28034834/tissue-localization-of-piscidin-host-defense-peptides-during-striped-bass-morone-saxatilis-development
#10
Scott A Salger, Benjamin J Reading, Edward J Noga
Infectious diseases are a major cause of larval mortality in finfish aquaculture. Understanding ontogeny of the fish immune system and thus developmental timing of protective immune tissues and cells, may help to decrease serious losses of larval fishes when they are particularly vulnerable to infection. One component of the innate immune system of fishes is the host-defense peptides, which include the piscidins. Piscidins are small, amphipathic, α-helical peptides with a broad-spectrum of action against viral, bacterial, fungal, and protozoan pathogens...
December 26, 2016: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28030857/new-description-of-telocyte-sheaths-in-the-bovine-uterine-tube-an-immunohistochemical-and-scanning-microscopic-study
#11
Hanan H Abd-Elhafeez, Soha A Soliman
Telocytes are a special type of interstitial cells characterized by distinctive cellular extensions with alternating thin segments (podomers) and dilations (podoms). Telocytes establish contact with various cells and structures, but their role in the regulation of the function of many cell types is still obscure. The aim of the current study was to investigate the morphology, histochemistry, and immunohistochemistry of telocytes, and their distribution, organization, and morphometric measurements in different layers of the adult bovine uterine tube...
December 29, 2016: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28028895/characterization-of-sox9-overexpressing-human-umbilical-cord-blood-derived-mesenchymal-stem-cells-based-engineered-cartilage-both-in-vitro-and-in-vivo
#12
Xiao-Li Li, Jun Zhang, Hua-Nan Luo, Xiaoyan Zhao, A-Ling Zhang, Zheng-Hui Wang
The source of seed cells is a critical factor for tissue engineering . The goal of this study was to evaluate the chondrogenesis of Sox9-overexpressing human umbilical cord mesenchymal stem cells (hUCMSCs) seeded onto bone matrix gelatin (BMG)/fibrin hybrid scaffolds both in vitro and in vivo. hUCMSCs were stably transfected with Sox9-expressing plasmid and grown on the three-dimensional BMG/fibrin hybrid scaffold for 8 weeks. Scanning electron microscopy and histochemistry were performed. The hUCMSC-loaded scaffolds were implanted into the subcutaneous layer of immunocompetent rats and chondrogenesis and host immune responses were monitored for 8 weeks...
December 28, 2016: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28024492/-analysis-of-indicators-related-with-cell-proliferation-and-apoptosis-in-the-patients-with-b-cell-non-hodgkin-s-lymphoma
#13
Jue-Jie Yin, Bo Liang, Yi Lu, Xin-Rong Zhan
OBJECTIVE: To analyze the indicators related with cell proliferation and apoptosis in patients with B cell non-Hodgkin's lymphoma(B-NHL). METHODS: Seventy-two cases of B-NHL and 50 cases of reactive hyperplasia of lymph nodes were entrolled in the experimental group and control group respectively. The expression levels of proliferating cell nuclear antigen(PCNA), X-linked inhibitor of apoptosis(XIAP) and B cell lymphoma leukemia-2(BCL-2) in paraffin-embedded tissue samples of 2 groups were detected by immuno-histochemistry staining, and their ralationship with pathologic factors was analyzed...
December 2016: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28018075/intraosseous-leiomyoma-of-the-calcaneum-an-unusual-bone-tumor-of-foot-and-review-of-literature
#14
Abhijeet Ashok Salunke, Pathik Chandrakant Vala, Harpreet Singh, Rohan Parwani, Sanjay Gandhi, Diva Shah
Leiomyoma is a benign tumor of smooth muscle origin and commonly diagnosed in the uterus, gastrointestinal tract, skin, and mucous membranes. To the best of our knowledge, the only reported intraosseous leiomyomas in extremities occurred in the proximal aspect and distal aspect of the femur, in the tibia, and in the ulna. We are not aware of any previous reports of intraosseous leiomyomas in the foot. The radiograph of the intraosseous leiomyoma shows unilocular or multilocular lytic lesion with sclerotic rim...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28013366/teaming-up-synthetic-chemistry-and-histochemistry-for-activity-screening-in-galectin-directed-inhibitor-design
#15
René Roy, Yihong Cao, Herbert Kaltner, Naresh Kottari, Tze Chieh Shiao, Karima Belkhadem, Sabine André, Joachim C Manning, Paul V Murphy, Hans-Joachim Gabius
A hallmark of endogenous lectins is their ability to select a few distinct glycoconjugates as counterreceptors for functional pairing from the natural abundance of cellular glycoproteins and glycolipids. As a consequence, assays to assess inhibition of lectin binding should necessarily come as close as possible to the physiological situation, to characterize an impact of a synthetic compound on biorelevant binding with pharmaceutical perspective. We here introduce in a proof-of-principle manner work with sections of paraffin-embedded tissue (jejunum, epididymis) and labeled adhesion/growth-regulatory galectins, harboring one (galectin-1 and galectin-3) or two (galectin-8) types of lectin domain...
December 24, 2016: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28007551/a-preliminary-investigation-of-phoshodiesterase-7-inhibitor-vp3-15-as-therapeutic-agent-for-the-treatment-of-experimental-autoimmune-encephalomyelitis-mice
#16
R Martín-Álvarez, N Paúl-Fernández, V Palomo, C Gil, A Martínez, G Mengod
cAMP plays a significant role in signal transduction pathways controlling multiple cellular processes such as inflammation and immune regulation. cAMP levels are regulated by a family of phosphodiesterases (PDEs). We have studied the effects of a novel PDE7 inhibitor (PDE7i) treatment on mice with experimental autoimmune encephalomyelitis (EAE) a model of multiple sclerosis (MS) and compared it with another PDE7i. EAE was induced by immunizing C57BL/6J mice with myelin oligodendrocyte glycoprotein (MOG35-55) peptide...
December 19, 2016: Journal of Chemical Neuroanatomy
https://www.readbyqxmd.com/read/28005267/human-gingiva-transcriptome-during-wound-healing
#17
Yun Wang, Dimitris N Tatakis
OBJECTIVES: To investigate the gene expression profile of human gingiva following surgical wounding. METHODS: Ten volunteers had one side of the palate wounded. Five days later, biopsies were harvested from both wounded (healing gingiva) and contralateral site (normal gingiva). Tissue samples were processed for gene expression (RNA-Seq, real-time PCR) and immuno-histochemistry. Gene-set enrichment/pathway analysis was also performed. RESULTS: Seven hundred genes were significantly differentially expressed in healing gingiva...
December 22, 2016: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28002514/lectin-purification-from-carp-roe-cyprinus-carpio-l-investigation-of-its-carbohydrate-specificity-and-application-in-histochemistry
#18
Rostyslav Antonyuk, Alexander Lutsyk, Volodymyr Antonyuk
A method of lectin purification from carp roe (CCRA) was elaborated, which includes affinity chromatography on cross-linked ovomucoid and copolymers of polyvinyl alcohol and blood group-specific substances. That allowed obtaining lectin with electrophoretic purity and yielding of ˜ 42 mg÷kg roe. Electrophoresis in 15% polyacrylamide gel in the presence of β-mercaptoethanol showed one band with molecular mass ˜ 15 kDa, whereas in the absence of β-mercaptoethanol, CCRA exposed band with molecular mass ˜ 60 kDa...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28000510/nadph-diaphorase-histochemistry-selectively-stains-peripheral-and-central-sensory-structures-of-lumbricid-earhworms
#19
Zsuzsanna Solt, Andrea Zsombok, Edit Pollák, László Molnár
By means of whole mount NADPH-diaphorase histochemistry the distribution pattern of primary sensory cells (PSC) and the pathway of their central processes in the ventral nerve cord (VNC) ganglia were investigated in the lumbricid earthworms, Eisenia fetida and Lumbricus terrestris. The distribution pattern of the stained structures seemed to be the same in both species investigated. Strong labelling occurred in sensory fibre branches of segmental nerves and in each of the sensory longitudinal axon bundles of VNC ganglia...
December 2016: Acta Biologica Hungarica
https://www.readbyqxmd.com/read/27997696/the-organization-of-frequency-and-binaural-cues-in-the-gerbil-inferior-colliculus
#20
Gilberto David Graña, Kendall A Hutson, Alexandra Badea, Andrew Pappa, William Scott, Douglas C Fitzpatrick
The inferior colliculus (IC) is the common target of separate pathways that transmit different types of auditory information. Beyond tonotopy, little is known about the organization of response properties within the 3-dimensional layout of the auditory midbrain in most species. A case where the functional properties of neurons can be readily characterized and related to specific pathways is ITD processing. To characterize the representation of ITDs relative to the frequency and hodological organization of the IC, the properties of neurons were recorded and the sites recovered histologically...
December 20, 2016: Journal of Comparative Neurology
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