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Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission

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https://www.readbyqxmd.com/read/28166424/lectin-histochemistry-for-detecting-cadmium-induced-changes-in-the-glycosylation-pattern-of-rat-placenta
#1
M C Díaz, N V González, C N Zanuzzi, R Najle, C G Barbeito
Cadmium (Cd) is an industrial and environmental pollutant that produces toxic effects on gametogenesis, pre- and post-implantation embryos, and the placenta. Because the effects of acute Cd intoxication on the placenta are not well understood, we investigated changes in its glycosylated components in Cd treated dams at days 4, 7, 10 and 15 of gestation using lectin histochemistry. CdCl2 was administered to pregnant rats; control animals received sterile normal saline. Placentas were processed for DBA, Con A, SBA, PNA, UEA-I, RCA-I and WGA lectin histochemistry to evaluate changes in the carbohydrate pattern of the placenta that might modify cell interactions and contribute to embryonic alterations...
February 6, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28166421/vitamin-e-and-selenium-treatment-of-monocrotaline-induced-hepatotoxicity-in-rats
#2
G Cuce, H T Canbaz, M E Sozen, F H Yerlikaya, S Kalkan
Monocrotaline (MCT) is a hepatotoxic pyrrolizidine alkaloid that is derived from plants; exposure may occur by consumption of contaminated grains, herbal teas and medicines. MCT can cause liver damage. We investigated the antioxidant effects of selenium (Se) and vitamin E against the toxic effects of MCT. Female Wistar albino rats were divided into four groups: a control group, an MCT group, an MCT + Se group, and an MCT + vitamin E group. Liver tissues were harvested, fixed, processed to paraffin and sections were cut...
February 6, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28166419/protective-and-therapeutic-effects-of-molsidomine-on-radiation-induced-neural-injury-in-rats
#3
M A Durak, H Parlakpinar, A Polat, N Vardi, K Ekici, M Ucar, O Ozhan, A Yildiz, R Pasahan
We investigated the protective and therapeutic effects of molsidomine (MOL) in a rat model of whole brain radiotherapy (RT). Forty female rats were divided into five groups of eight: group 1, control; group 2, 15 Gy single dose RT (RT); group 3, 4 mg/kg MOL treated for 5 days (MOL); group 4, 4 mg/kg MOL for 5 days, 10 days after RT treatment (RT + MOL); group 5, 4 mg/kg MOL treatment for 5 days before RT treatment and for 5 days after RT treatment (MOL + RT). All rats were sacrificed on day 16. Neurodegenerative changes in the brain and tissue levels of oxidants and antioxidants were evaluated...
February 6, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28166417/detection-of-microspheres-in-vivo-using-multispectral-optoacoustic-tomography
#4
N Bhutiani, C W Kimbrough, N C Burton, S Morscher, M Egger, K McMasters, A Woloszynska-Read, A El-Baz, L R McNally
We introduce a new approach to detect individual microparticles that contain NIR fluorescent dye by multispectral optoacoustic tomography in the context of the hemoglobin-rich environment within murine liver. We encapsulated a near infrared (NIR) fluorescent dye within polystyrene microspheres, then injected them into the ileocolic vein, which drains to the liver. NIR absorption was determined using multispectral optoacoustic tomography. To quantitate the minimum diameter of microspheres, we used both colorimetric and spatial information to segment the regions in which the microspheres appear...
February 6, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28157427/optimization-validation-and-identification-of-two-reliable-antibodies-for-immunodetection-of-wnt5a
#5
Z Prgomet, T Andersson, P Lindberg
WNT5A is a secreted, noncanonical WNT signaling protein that has been reported to promote progression of several types of cancer, including oral squamous cell carcinoma. Many WNT5A antibodies are available commercially for immunohistochemistry (IHC) and western blot analysis. Validation of the primary antibodies, however, is often neglected. We characterized antibodies for detecting WNT5A by IHC and western blot analysis. We evaluated one polyclonal and three monoclonal commercially available WNT5A antibodies...
February 3, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28098485/effects-of-umbilical-cord-blood-stem-cells-on-healing-factors-for-diabetic-foot-injuries
#6
N Çil, E O Oğuz, E Mete, A Çetinkaya, G A Mete
The use of stem or progenitor cells from bone marrow, or peripheral or umbilical cord blood is becoming more common for treatment of diabetic foot problems. These cells promote neovascularization by angiogenic factors and they promote epithelium formation by stimulating cell replication and migration under certain pathological conditions. We investigated the role of CD34 + stem cells from human umbilical cord blood in wound healing using a rat model. Rats were randomly divided into a control group and two groups with diabetes induced by a single dose of 55 mg/kg intraperitoneal streptozocin...
January 18, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/28098484/romanowsky-staining-the-romanowsky-effect-and-thoughts-on-the-question-of-scientific-priority
#7
A V Bezrukov
I give an historical account and analysis of the scientific priority of the discovery of the polychrome staining of microscopic biological preparations provided by mixtures of eosin plus methylene blue and its derivatives, especially azure B. I maintain that both the formal priority for the discovery of the polychrome staining phenomenon and credit for initiating the development of a technique of polychrome staining properly belong to D. L. Romanowsky. His scientific work demonstrated the possibility of using a simple technique to stain hematological preparations selectively to give good contrast, high resolution and the ability to identify malaria parasites...
January 18, 2017: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27869573/the-chemokine-cxcl16-and-its-receptor-cxcr6-are-constitutively-expressed-in-human-annulus-fibrosus-and-expression-of-cxcl16-is-up-regulated-by-exposure-to-il-1%C3%A3-in-vitro
#8
H E Gruber, E Marrero, J A Ingram, G L Hoelscher, E N Hanley
Chemokines are an important group of soluble molecules with specialized functions in inflammation. The roles of many specialized chemokines and their receptors remain poorly understood in the human intervertebral disc. We investigated CXCL16 and its receptor, CXCR6, to determine their immunolocalization in disc tissue and their presence following exposure of cultured human annulus fibrosus cells to proinflammatory cytokines. CXCL16 is a marker for inflammation; it also can induce hypoxia-inducible factor 1α (HIF-1α), which is a phenotypic marker of heathy nucleus pulposus tissue...
November 21, 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27849398/production-of-endothelial-progenitor-cells-obtained-from-human-wharton-s-jelly-using-different-culture-conditions
#9
S A Zayed, T M Gaafar, R M Samy, D Sabry, A S Nasr, Fa Abdel Maksoud
Endothelial progenitor cells (EPC) participate in revascularization and angiogenesis. EPC can be cultured in vitro from mononuclear cells of peripheral blood, umbilical cord blood or bone marrow; they also can be transdifferentiated from mesenchymal stem cells (MSC). We isolated EPCs from Wharton's jelly (WJ) using two methods. The first method was by obtaining MSC from WJ and characterizing them by flow cytometry and their adipogenic and osteogenic differentiation, then applying endothelial growth differentiating media...
November 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27849397/tribute-to-thomas-wickersham-1938-2016
#10
(no author information available yet)
No abstract text is available yet for this article.
November 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27849396/extracting-information-from-imaging-cytometry-a-review
#11
P J Gokhale
The extraction of statistically meaningful quantitative information from microscopy images is increasingly important for modern biological research. Obtaining accurate, quantitative information from biological specimens, however, is a complex process that requires optimization of several parameters. One must consider the number of probes, fluorescent channels required, type of plate to be used, number of fields to be acquired and optimal resolution for image acquisition. The extraction of information from images is dependent on and can be aided greatly by careful consideration of the factors involved in the image acquisition process...
November 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27849395/giemsa-based-cytological-assessment-of-area-shape-and-nucleus-cytoplasm-ratio-of-goblet-cells-of-rabbit-bulbar-conjunctiva
#12
M J Doughty
Goblet cells were visualized in impression cytology specimens from bulbar conjunctiva of the rabbit eye using Giemsa staining. Highly magnified images were used to generate outlines of the goblet cells and their characteristic eccentric nuclei. Using sets of 10 cells from 15 cytology specimens, I found that the longest dimension of the goblet cells averaged 16.7 ± 2.3 μm, the shortest dimension averaged 14.4 ± 1.8 μm and the nucleus averaged 6.3 ± 0.8 μm. The goblet cells were ellipsoid in shape and the longest:shortest cell dimension ratio averaged 1...
November 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27849393/schiff-and-pseudo-schiff-reagents-the-reactions-and-reagents-of-hugo-schiff-including-a-classification-of-various-kinds-of-histochemical-reagents-used-to-detect-aldehydes
#13
R W Dapson
During the 1860's, Hugo Schiff studied many reactions between amines and aldehydes, some of which have been used in histochemistry, at times without credit to Schiff. Much controversy has surrounded the chemical structures and reaction mechanisms of the compounds involved, but modern analytical techniques have clarified the picture. I review these reactions here. I used molecular modeling software to investigate dyes that contain primary amines representing eight chemical families. All dyes were known to perform satisfactorily for detecting aldehydes in tissue sections...
November 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27849392/effects-of-nigella-sativa-on-apoptosis-and-gabaa-receptor-density-in-cerebral-cortical-and-hippocampal-neurons-in-pentylenetetrazol-induced-kindling-in-rats
#14
I Meral, M Esrefoglu, K A Dar, S Ustunova, M S Aydin, M Demirtas, Y Arifoglu
We investigated the effects of Nigella sativa on apoptosis and gamma-aminobutyric acid (GABAA) receptor density in cerebral cortical and hippocampal neurons in a pentylenetetrazol (PTZ)-induced kindling model in rats. The PTZ kindling model was produced by injecting PTZ in subconvulsive doses to rats on days 1, 3, 5, 8, 10, 12, 15, 17, 19, 22 and 24 of the study into animals of PTZ treated (PTZ) and PTZ + N. sativa treated (PTZ + NS) groups. Clonic and tonic seizures were induced by injecting a convulsive dose of PTZ on day 26 of the study...
November 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27849391/reviewers-for-biotechnic-histochemistry-2015-2016
#15
(no author information available yet)
No abstract text is available yet for this article.
November 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27849390/adverse-effects-of-tempol-on-hidrosaline-balance-in-rats-with-acute-sodium-overload
#16
N M Kouyoumdzian, Nl Rukavina Mikusic, G Cao, M R Choi, Sl Della Penna, B E Fernández, J E Toblli, M I Rosón
We studied the effects of tempol, an oxygen radical scavenger, on hydrosaline balance in rats with acute sodium overload. Male rats with free access to water were injected with isotonic (control group) or hypertonic saline solution (0.80 mol/l NaCl) either alone (Na group) or with tempol (Na-T group). Hydrosaline balance was determined during a 90 min experimental period. Protein expressions of aquaporin 1 (AQP1), aquaporin 2 (AQP2), angiotensin II (Ang II) and endothelial nitric oxide synthase (eNOS) were measured in renal tissue...
November 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27676207/immunohistochemical-localization-of-androgen-receptors-in-female-mole-rat-spalax-leucodon-tissues
#17
F M Gur, S Timurkaan
Androgens exert their effects through androgen receptors (AR) in tissues. We investigated the distribution of AR in female mole rat tissues. Tissues were excised, fixed with 10% formalin and embedded in paraffin. Sections were stained after microwave antigen retrieval for immunohistochemistry. Immunostaining of AR immunostaining was detected in the nucleus or cytoplasm of the cells in the cerebral cortex, cerebellum, anterior pituitary, lung, liver, uterus and skin. Granulosa and some thecal cells in the ovary, cardiac muscle cells and adipose cells exhibited a nuclear reaction for AR...
October 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27676116/pistacia-lentiscus-fruit-oil-reduces-oxidative-stress-in-human-skin-explants-caused-by-hydrogen-peroxide
#18
S Ben Khedir, D Moalla, N Jardak, M Mzid, Z Sahnoun, T Rebai
We investigated the efficacy of Pistacia lentiscus fruit oil (PLFO) for protecting human skin from damage due to oxidative stress. PLFO contains natural antioxidants including polyphenols, sterols and tocopherols. We compared the antioxidant potential of PLFO with extra virgin olive oil (EVOO). Explants of healthy adult human skin were grown in culture with either PLFO or EVOO before adding hydrogen peroxide (H2O2). We also used cultured skin explants to investigate the effects of PLFO on lipid oxidation and depletion of endogenous antioxidant defense enzymes including glutathione peroxidase (GPx), superoxide dismutase (SOD) and catalase (CAT) one day after 2 h exposure to H2O2...
October 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27644112/a-morphometric-study-of-the-protective-effect-of-cryotherapy-on-oral-mucositis-in-cancer-patients-treated-with-5-fluorouracil
#19
M Turkeli, M N Aldemir, F Bingol, C Dogan, A Kara
We investigated cytological changes in oral mucosa smears from patients treated with cryotherapy to determine whether cryotherapy prevented mucositis caused by 5-fluorouracil (5-FU) therapy. Patients with gastrointestinal malignancies were divided into four groups; control patients before 5-FU therapy, patients after 5-FU therapy without cryotherapy, patients with cryotherapy before 5-FU therapy and patients with cryotherapy after 5-FU therapy. Oral mucosa samples from all patients were assessed at the beginning and on day 14 of chemotherapy...
October 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27629436/ascorbic-acid-and-beta-carotene-reduce-stress-induced-oxidative-organ-damage-in-rats
#20
M Esrefoglu, A Akinci, E Taslidere, H Elbe, A Cetin, B Ates
Antioxidants are potential therapeutic agents for reducing stress-induced organ damage. We investigated the effects of ascorbic acid and β-carotene on oxidative stress-induced cerebral, cerebellar, cardiac and hepatic damage using microscopy and biochemistry. Male Wistar albino rats were divided into five groups: untreated control, stressed, stressed + saline, stressed + ascorbic acid and stressed + β-carotene. The rats in the stressed groups were subjected to starvation, immobilization and cold. The histopathological damage scores for the stressed and stressed + saline groups were higher than those of the control group for all organs examined...
October 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
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