Abstract:
:The internal space of the antheridium in Chara vulgaris L. is filled with the PAS-positive mucilage which is of pectic nature. Morphometric and cytophotometric measurements on the semithin sections indicate that the concentration and amount of PAS-positive polysaccharides: 1) increase during the time of antheridial growth accompanying the phase of antheridial filament divisions, 2) these parameters have the maximum after spermatid formation and at the beginning of their differentiation, i.e. spermiogenesis, 3) both concentration and amount of this substance decrease at the end of spermiogenesis. A decrease in mucilage concentration is also observed in the young antheridia after 3 days of continuous darkness. The results suggest that PAS-positive mucilagenous material is a nutritive substance, accumulated in the first phase of antheridial development and utilized mainly in spermiogenesis. These substances may also be used up in the young antheridia during the lack of energy supply. The autoradiographic studies with the use of a 3H-glucose and 3H-galactose mixture seem to confirm these suggestions.
journal_name
Folia Histochem Cytobioljournal_title
Folia histochemica et cytobiologicaauthors
Gosek A,Kwiatkowska Msubject
Has Abstractpub_date
1991-01-01 00:00:00pages
91-9issue
3eissn
0239-8508issn
1897-5631journal_volume
29pub_type
杂志文章abstract::Progress in recognition of structure and function in a variety of cells has always been linked to development of new research techniques. Beyond doubt, immunocytochemical techniques belong to such new methods. However, the techniques had not been widely applied to electron microscopy until colloidal gold was introduce...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章,评审
doi:
更新日期:2001-01-01 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::The purpose of the present study was to evaluate morphologically the response of feline teeth pulp to direct pulp capping with two different self-etch adhesive systems. Twenty-four cavities in feline teeth were mechanically exposed and assigned to one of two experimental groups: AdheSE + Tetric Ceram (the ASE group), ...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.5603/20325
更新日期:2012-01-01 00:00:00
abstract::In root meristems of 3 species (Secale cereale L., Vicia faba L. subsp. minor, Allium cepa L.) the durations of cell cycles and their phases were calculated using 3H-thymidine labelling. In the above species and in Helianthus annuus L. (parameters of the cell cycle determined earlier) the G1 and G2 phase durations wer...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::Calcium binding sites were revealed in the polytropic egg vesicles of Galleria mellonella (Lepidoptera) by fixation of the ovariole with glutaraldehyde in the presence of excess of calcium. Calcium dependent deposits appeared in the mitochondrial matrix in cells of the epithelial sheath and of the follicular epitheliu...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:1984-01-01 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::The renin-angiotensin system (RAS) is known mainly as a regulator of cardiovascular homeostasis. However, it has also been shown to mediate processes such as proliferation, apoptosis, angiogenesis, and carcinogenesis. Nonmelanoma skin cancers (NMSC) - including basal cell carcinoma (BCC) and squamous cell carcinoma (S...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.5603/FHC.2013.0033
更新日期:2013-01-01 00:00:00
abstract::Lung cancer is the leading cause of death worldwide. High mortality comes out mainly of the fact that majority of the cases are diagnosed in advanced stadium. An expanded diagnostics of precancerous conditions would certainly contribute to lowering the mortality rate. Many of the molecular changes accompanying the mul...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.2478/v10042-008-0013-8
更新日期:2008-01-01 00:00:00
abstract::Platinum-based chemotherapy is the main type of I-line treatment of advanced and non-operative NSCLC patients without EGFR gene mutation. The excision repair cross-complementation group 1 (ERCC1) is an enzyme that executes the incision of the damaged DNA strand and removes platinum-induced DNA adducts. We investigated...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.2478/18700
更新日期:2012-04-24 00:00:00
abstract::After dmPGE2 treatment, both alone or together with streptozotocin, the lower, statistically significant total PL contents (in mumoles P per mg of protein) in rat liver Golgi-rich membrane fractions were found. In these groups of investigated rats, the percentage of PE+PA were statistically significantly lower than in...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract:INTRODUCTION:Ghrelin, an appetite-stimulating hormone secreted by the endocrine cells of the gastrointestinal (GI) tract, has recently been shown to affect the function of the cardiovascular system. This study aimed to assess the number and morphology of ghrelin-immunopositive (GhrIP) cells in the gastrointestinal trac...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.5603/FHC.a2016.0023
更新日期:2016-01-01 00:00:00
abstract::It was found that the BCG vaccine injected subcutaneously to the rats enhances the process of lung fibrosis induced by bleomycin. Pretreatment of rats with this vaccine results in accumulation of activated macrophages in lung interstitium and in the bronchoalveolar spaces. It may be suggested that the activated macrop...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:1993-01-01 00:00:00
abstract:INTRODUCTION:Chronic rhinosinusitis (CRS) affects 14% of the world population. The high motility group box 1 (HMGB1) protein triggers inflammation, cell proliferation and cell survival through its receptor for advanced glycation end products (RAGE) upon release from stressed or necrotic cells. The aim of the study was ...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.5603/FHC.a2015.0007
更新日期:2015-01-01 00:00:00
abstract::The aim of the study was to evaluate the influence of a nitric oxide donor: Glyco-2-SNAP on the proliferation status of two breast cancer cell lines: MDA-MB-231 and MCF-7. The study was performed by the thymidine incorporation method as well as by the immunocytochemical detection of the Ki-67 antigen. We found that th...
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 fibroblast growth factors (FGFs) are multifunctional proteins that, among other roles, regulate structural reorganization of uterine and placental vascular bed during pregnancy. Thus, we analyzed mRNA and protein expression and immunohistochemical localization of FGF-1 and FGF-2, and their receptors (FGFR-1 and FG...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.2478/v10042-010-0073-4
更新日期:2010-12-01 00:00:00
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journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.2478/v10042-009-0116-x
更新日期:2009-01-01 00:00:00
abstract::Cancer procoagulant activity in the blood serum of patients with oesophagal, gastric and colorectal cancer was evaluated before and after the tumour removal. Cancer procoagulant activity was significantly higher before the operation in comparison to the control group and was reduced after a total operative procedure, ...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:2001-01-01 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::Three proteinases from the azurophilic granules of horse leucocytes are typical elastases degrading elastin at neutral pH. Both proteinases: 1 and 2A exhibit similar elastinolytic activity, comparable with human leucocyte elastase (HLE). In relation to human enzyme, elastase 2B shows several-fold higher activity, whic...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:1986-01-01 00:00:00
abstract::Using the histochemical and histological techniques the morphology and topography of the autonomic plexuses of the oesophagus and stomach in chinchilla (Chinchilla laniger) was investigated. AChE-positive and adrenergic structures in the myenteric and submucosal plexus were observed. According to the results the choli...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.5603/FHC.2013.0018
更新日期:2013-01-01 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:INTRODUCTION:Overexpression of growth hormone (GH) leads to increase in insulin-like growth factor-1 (IGF-1) plasma level, stimulation of growth and increase in body size, organomegaly and reduced body fat. The action of GH affects all the organs and transgenic mice that overexpress bovine GH (bGH mice) serve as conven...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.5603/fhc.a2015.0024
更新日期:2015-01-01 00:00:00
abstract::Twenty-four male volunteers (mean +/- SD: age 25.4+/-5.8 years, height 178.6+/-5.5 cm, body mass 72.1+/-7.7 kg) of different training background were investigated and classified into three groups according to their physical activity and sport discipline: untrained students (group A), national and sub-national level en...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:2004-01-01 00:00:00
abstract::Differentiation of the lingual taste discs (TDs) was studied in tadpoles of Rana esculenta, Hyla arborea and Pelobatesfuscus by means of LM, TEM, and SEM. The process of differentiation of mucous cells (MCs) within a TD anlage was investigated subsequently from 39th to 46th Gosner's developmental stage. In R. esculent...
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 effect of cadmium (Cd) on the thyroid and parathyroid glands was examined following a 12-week exposure of rats to 5 or 50 mg Cd/dm3. Immunohistochemical methods were used to determine calcitonin (CT), calcitonin-gene related peptide (GGRP), parathormone (PTH), somatostatin (ST), synaptophysin (SPh) and neuron-spec...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:2001-01-01 00:00:00
abstract::Dendritic cells (DCs) are regarded as the most potent antigen presenting cells that are well suited to activate T cells toward various antigens, such as tumor-associated antigens, due to their costimulatory activity. There is evidence that DCs are of diverse origin, with at least two types of myeloid and lymphoid prec...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:2004-01-01 00:00:00
abstract::The family of epidermal growth factor (EGF, EGFR, c-erbB-2) plays a pivotal role in gastric cancer progression, invasion and metastasizing. Helicobacter pylori infection is known to contribute significantly to the formation and progression of gastric cancer. However, the mechanisms responsible for this process have no...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.2478/v10042-009-0102-3
更新日期:2009-01-01 00:00:00
abstract::Immunohistochemical localization of androgen receptor (AR) was investigated in the rat oocytes during their development in the primary, secondary and antral follicles. The group of experimental Wistar rats included prepubertal female rats, killed at 30 days of age, and mature female rats killed at estrus or metestrus....
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
abstract::In male sex organs of Chara vulgaris L., the gibberellic acid (GA3), was identified by capillary zone electrophoresis. The antheridia at cell division stage of antheridial filaments leading to formation of spermatids contain 0.09 microg GA3 per antheridium, i.e. 5.3 times more than antheridia at differentiation stage ...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:
更新日期:1999-01-01 00:00:00
abstract::The current study was inspired by the fact that since 2004 no report had appeared on the occurrence of this peptide in healthy parotid glands of humans and animals. The objective of the current study was to investigate the immunolocalization of PTHrP in the parotid gland of three male rodents: 6 common voles (Microtus...
journal_title:Folia histochemica et cytobiologica
pub_type: 杂志文章
doi:10.2478/v10042-010-0003-5
更新日期:2010-01-01 00:00:00