Abstract：
:The present work deals with the histochemical, histoenzymological and micro-analytical study of the stomach of Littorina Littorea (L.). The results suggest the existence of intracellular digestion within the stomach cells. Thus, the occurrence of lysosomes in the mid-cytoplasm of stomach cells has been revealed by demonstration beta-glucuronidase activity in cryostat sections of frozen tissues. Other enzymatic activities have been proved with the same tissues. Accordingly, the results on lipid and pigment histochemistry indicate a certain digestion in this cell type. Mucocytes show a protective role for the epithelium, their main secretions being acid MPS. The elemental composition of electron dense concretions from the stomach cells indicate the presence of very high amounts of iron associated to lower peaks for sulphur, phosphorous and other cations found as calcium, copper and zinc.
journal_name
Folia Histochem Cytobioljournal_title
Folia histochemica et cytobiologicaauthors
Soto M,Gil JM,Marigomez JA,Angulo Esubject
Has Abstractpub_date
1990-01-01 00:00:00pages
239-48issue
4eissn
0239-8508issn
1897-5631journal_volume
28pub_type
杂志文章abstract：:Angiogenesis represents an important process manifested in tumour growth and in development of metastases. Using immunohistochemistry, the authors evaluated number of vessels in various nodular lesions of the thyroid (54 cases). Expression of CD34 antigen and microvessel density were evaluated in sections of archival ...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:Diplotene oocyte nucleus of the scorpionfly Panorpa communis is transcriptionally silent and contains numerous nuclear bodies including interchromatin granule clusters (IGCs). The latter consist of the granules of 30-50 nm in diameter and contain IGC marker protein SC35 as well as RNA polymerase II. In this study, we ...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.2478/v10042-009-0006-2
更新日期：2009-01-01 00:00:00
abstract：:Two hypotheses explain the role of adult progenitor cells in myocardial regeneration. Stem cell plasticity which involves mobilization of stem cells from the bone marrow and other niches, homing to the area of tissue injury and transdifferentiation into functional cardiomyocytes. Alternative hypothesis is based on the...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章,评审
doi：
更新日期：2005-01-01 00:00:00
abstract：INTRODUCTION:Struma ovarii (SO) is a monodermal teratoma in which thyroid tissue comprises more than 50% of the tumour. Papillary thyroid cancer (PTC) in SO is a rare finding, as only 5% of SO cases undergo malignant transformation. Malignant SO is usually asymptomatic and infrequently diagnosed preoperatively. Because...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.5603/FHC.a2019.0004
更新日期：2019-01-01 00:00:00
abstract：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 pl...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.5603/FHC.a2016.0011
更新日期：2016-01-01 00:00:00
abstract：:The effect of limited amino acid nutrition upon the growth of B16 melanoma cells was investigated. It was observed that the cells in Basal Medium Eagle do not proliferate and are inhibited predominantly in the G1 phase of cell cycle. The cells which were inhibited in growth for 7 or 12 days in Basal Medium Eagle were ...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:The aim of this study was to compare the imaging symptoms and microscopic findings in females with lobular neoplasia (LN) found on biopsy. 1,478 women who underwent primary open biopsy or surgical excision after percutaneous biopsy were reviewed. In 24 of them (1.6%), LN was found. In four patients, excisional biopsy ...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.5603/fhc.2011.0059
更新日期：2011-01-01 00:00:00
abstract：:Using immunohistochemistry and Western blot analysis we attempted to identify the estrogen receptors in ovine luteal cells at different stages of the estrous cycle. Monoclonal antibody against estrogen receptors was used for immunolocalization of estrogen receptor-alpha in corpora lutea sections. Generally, the most i...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
abstract：:In cervical cancer, glycosylation has been suggested as being involved in both its carcinogenesis and invasive capacity. In this work, we analyzed mucin type O-glycosylation in biopsies of invasive cervical cancer in FIGO stage II B through histochemistry using lectins specific for O-glycosidically linked glycans. Our...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.5603/19748
更新日期：2012-10-08 00:00:00
abstract：:The present study was aimed at disclosing axotomy- and inflammation-induced changes in the chemical coding of retrogradely labelled distal bowel-projecting neurons in the porcine IMG. Particular attention was paid to the changes in the expression pattern of vasoactive intestinal polypeptide and nitric oxide synthase (...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:Nuclear bodies (NBs) are intranuclear structures described in normal and pathologically altered cells of humans and animals. The NBs are 0.3-1.5 microns round structures. Their function is unknown. In the present paper, we describe NBs in the nuclei of the conjunctiva epithelial cells in one patient with cicatricial p...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
abstract：:The present study deals with immunohistochemical localization of PTHrP in European bison and pine vole testis and epididymis. PTHrP immunoreactivity was observed in spermatogenic cells of seminiferous tubules in European bison and pine vole testis, with the strongerst reaction occurring in spermatozoa of pine vole tes...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：:Degradation of extracellular matrix (ECM) is an essential step of invasion and metastasis of gastric cancer. The proteolysis of basement membranes depends on the balance between activities of matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs). The aim of the study was to assess the expression of TIMP...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.2478/v10042-009-0071-6
更新日期：2009-01-01 00:00:00
abstract：:The frequency of Helicobacter pylori infection in population can depend on the organism resistance, genetic condition, and bacterial strains virulence. A vacA gene, of mosaic structure, which encodes vacuolating cytotoxin is one of the known genes of H. pylori. The existence of several different genotypes of s and m r...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:The structure of epidermis and appearance of keratinocytes is described in intact skin specimens from human corpses stored after death under refrigeration. Two groups of alterations can be identified depending on the epidermal layer. In the spinous layer, the cells are characterized by crescent-shaped nuclei surrounde...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:Morphology and some molecular aspects of hyperplastic (bronchial basal cell hyperplasia and alveolar cell hyperplasia), metaplastic (squamous metaplasia), preneoplastic and early neoplastic (dysplasia in squamous metaplasia, cancer in situ and atypical alveolar cell hyperplasia) changes were studied in 180 lungs resec...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：:Fertilization involves a series of cellular interactions culminating in the fusion of gamete membranes, creating a zygote and then an embryo. During the process of human fertilization in vivo or in conventional in vitro fertilization (IVF), sperm must be capable of undergoing the acrosome reaction, binding to the zona...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:The study aimed at examination of tissue expression of polysaccharides and secretory mucin 5AC (MUC5AC) in young patients (up to 25 years of age) with a symptomatic gallstones. For comparison, patients most frequently subjected to cholecystectomy were studied, i.e. patients of approximately 50 years of age with the sa...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.2478/v10042-010-0053-8
更新日期：2010-12-01 00:00:00
abstract：:Investigations were performed to become acquainted with the immunohistochemical features of foam cells localized perivascular and intratumoral in neoplasms of neuroectodermal origin. Antibodies against lysozyme (muramidase) (LO), alfa 1-antitrypsin (AT), protein S-100 and glial fibrillary acid protein (GFAP) were used...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:The aim of this study was to visualize the expression of androgen receptor, cytochrome P450 aromatase and FSH receptor mRNAs in various structures of porcine ovary. Porcine ovaries were frozen in liquid nitrogen, and 8 microm sections were prepared for in situ hybridization. In the small, medium and large antral folli...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：:The expression of proliferating cell nuclear antigen (PCNA) correlates to cell proliferation and for this reason it is commonly considered as one of proliferation markers. Since proliferation rate is an important factor determining the tumor aggressiveness, the evaluation of PCNA index (the percentage of PCNA-immunopo...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2006-01-01 00:00:00
abstract：INTRODUCTION:Testicular function in the sand rodent Psammomys obesus is subjected to seasonal alternations with a trigger of spermatogenesis in winter and a total quiescence which extends from late spring to summer. The aim of this study was to investigate the distribution of b-endorphin in the testis at the period of ...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.5603/FHC.a2016.0013
更新日期：2016-01-01 00:00:00
abstract：:The intra-S-phase checkpoint response to hydroxyurea (HU)-mediated arrest of DNA replication was analysed in root meristems of two legumes, Pisum sativum and Vicia faba. The obtained results suggest that a molecular signal which invokes mechanisms allowing the cells to override the S-M dependency control system may be...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：2002-01-01 00:00:00
abstract：:The K-ras gene is frequently mutated in colorectal cancer and has been associated with tumor initiation and progression; approximately 90% of the activating mutations are found in codons 12 and 13 of exon 1 and just under 5% in codon 61 located in exon 2. These mutations determine single aminoacidic substitutions in t...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.5603/fhc.2011.0097
更新日期：2011-01-01 00:00:00
abstract：:A child was operated 3 times because of a recurrent growth hormone- and prolactin-producing pituitary adenoma. Between the operations she was treated for five years with bromocriptine. The characteristics of the tumour cell population collected after the last operation was now examined by electron microscopy, immunocy...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：INTRODUCTION:Previous studies analyzing ghrelin and obestatin expression in thyroid gland tissue are not unanimous and are mostly related to ghrelin. The role of ghrelin and obestatin in the thyroid gland appears very interesting due to their probable involvement in cell proliferation. Furthermore, since the thyroid gl...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.5603/FHC.a2015.0004
更新日期：2015-01-01 00:00:00
abstract：:The polytrophic ovarioles of Panorpa communis are differentiated into a terminal filament, germarium and vitellarium. The germarium contains cystoblasts and germ cell clusters at early stages of their differentiation. At the base of germarium the cystocytes become morphologically diversified. One of the central cells ...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：:Delayed type hypersensitivity reaction (DTH) consists of a sequential cascade of steps depending on different types of T cells, as well as mast cells, endothelial cells and macrophages. Recently it has been shown that CD4+ TH1 lymphocytes ("inflammatory type") play a central role in DTH reaction. Activated TH1 cells p...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章,评审
doi：
更新日期：1990-01-01 00:00:00
abstract：:Very suggestive evidence for possible role of beta-endorphin (BE) in immune activity has been continuously accumulated in the literature in spite of contradictory results about the involvement of the opiate system in immunological response. The reversed passive Arthus reaction (RPAR) was performed in the dorsal area o...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:Sand storms in Mongolia have increased in frequency and scale, resulting in increased exposure of the inhabitants of Asian countries, including Japan and Korea, to Asian sand dust (ASD), which results in adverse effects on the respiratory system. However, there is no information on the health risks of severe sand stor...
journal_title：Folia histochemica et cytobiologica
pub_type： 杂志文章
doi：10.5603/FHC.2014.0028
更新日期：2014-01-01 00:00:00
