abstract：:The karyotype structure of Laena reitteri is described for the first time. The chromosome number 2n = 18+1-3B and meioformula n(male) = 8+Xy+1-3B deviates from the modal tenebrionid number. The karyotype exhibits low variation in morphology and length. The diploid set consists of four long (subtelocentric and acrocent...

journal_title：Folia biologica

authors： Holecová M,Rozek M,Lachowska D

更新日期：2008-01-01 00:00:00

abstract：:As an extension of the ongoing cytogenetic studies of the bug family Nabidae (Heteroptera: Cimicomorpha), the first evidence for the tribe Arachnocorini (the subfamily Nabinae), with reference to the Trinidad endemic, Arachnocoris trinitatus Bergroth, is provided. This is an attempt to gain a better insight into the e...

journal_title：Folia biologica

authors： Kuznetsova VG,Grozeva S,Sewlal JA,Nokkala S

更新日期：2007-01-01 00:00:00

abstract：:The clinical course of chronic renal diseases and their progression to ESRF is highly variable. Different candidate gene polymorphisms have been advocated as possible modulators of ESRF progression. Moreover, ET-1 has been suggested as a major promoting factor in renal disease. However, limited data are available rega...

journal_title：Folia biologica

authors： Maixnerová D,Merta M,Reiterová J,Stekrová J,Rysavá R,Obeidová H,Viklický O,Potmĕsil P,Tesar V

更新日期：2007-01-01 00:00:00

abstract：:Bisphosphonates are commonly used for treatment of osteoporosis. They inhibit osteoclast activity and thus bone resorption. It was shown that they also affect some other cell types including tumour and endothelial cells. The effects of risedronate on bone marrow microenvironment were not studied yet. As endothelial ce...

journal_title：Folia biologica

authors： Sefc L,Broulík P,Pelichovská T,Necas E

更新日期：2007-01-01 00:00:00

abstract：:MMP-2 and MMP-9 play a significant role in the development of numerous diseases mainly with the inflammatory pathogenesis. One of the drugs exerting an effect on metalloproteinases is IFN-beta. Previous studies showed that IFN beta-1b can decrease MMP synthesis and moreover inhibit their proteolytic activity. The aim ...

journal_title：Folia biologica

authors： Kurzepa J,Stryjecka-Zimmer M

更新日期：2007-01-01 00:00:00

abstract：:The aetiopathogenesis of epuli, a group of benign gingival hyperplasias, remains unclear. The purpose of the present study was to determine similarities and differences between benign (epulus) and malignant (cancer) gingival hyperplasias based on the evaluation of three signal pathways stimulated by the IFN-gamma comp...

journal_title：Folia biologica

authors： Niedzielska I

更新日期：2007-01-01 00:00:00

abstract：:Cell movement in the amoebae Dictyostelium discoideum has been examined in media differing in monovalent cation concentration (i.e. Na+ and K+). Under isotonic or even slightly hypertonic conditions, the cells move equally well in solutions in which either potassium or sodium ions dominate. However, in strongly hypert...

journal_title：Folia biologica

authors： Waligórska A,Wianecka-Skoczeń M,Korohoda W

更新日期：2007-01-01 00:00:00

abstract：:The aim of the present study was to determine the toxicity of fluorides on energy metabolism in muscles of the Helix aspersa maxima snail. Qualitative and quantitative analysis of purine compounds was performed in slices of foot from mature snails with high-performance liquid chromatography. Fluoride concentrations we...

journal_title：Folia biologica

authors： Rać ME,Safranow K,Dołegowska B,Machoy Z

更新日期：2007-01-01 00:00:00

abstract：:The CCAAT/enhancer binding protein alpha (C/EBPalpha or CEBPA) is the founding member of a family of related leucine zipper transcription factors that play important roles in myeloid differentiation. Targeted inactivation of C/EBPalpha in mice demonstrates its importance in the proper development and function of liver...

journal_title：Folia biologica

authors： Fuchs O

更新日期：2007-01-01 00:00:00

abstract：:Hypertrophic chondrocytes, commonly considered as terminal cells responsible for apoptotic elimination in endochondral osteogenesis, have the potential to switch their metabolic role and enter osteoblastic differentiation, based on histochemical, immunohistochemical, biochemical and cytological analysis. During endoch...

journal_title：Folia biologica

authors： Włodarski KH,Włodarski PK,Brodzikowska A

更新日期：2006-01-01 00:00:00

abstract：:The aim of the performed investigations was to analyse the laying rhythm and reproductive traits of Kołuda white geese from the W11 reproduction strain and to determine the heritability of these traits as well as correlations between the laying rhythm traits and reproductive traits. The total number of geese participa...

journal_title：Folia biologica

authors： Rosiński A,Nowaczewski S,Kontecka H,Bednarczyk M,Elminowska-Wenda G,Bielińska H,Maczyńska A

更新日期：2006-01-01 00:00:00

abstract：:The external surface of facets of representatives of 19 families of Lepidoptera is discussed and illustrated. Two types of structures are recognized, this with nipples predominate. The other structures (pleats) developed probably in the course of a reduction. The ultrastructure of surface in the form of granulation is...

journal_title：Folia biologica

authors： Razowski J,Wojtusiak J

更新日期：2006-01-01 00:00:00

abstract：:All living beings need to solve the problem of controlled transport of water. To this purpose, a special group of integral membrane proteins called aquaporins has evolved. There are 13 known members of this family that act as channels for water and small solutes, such as glycerol and urea. Although they allow large fl...

journal_title：Folia biologica

authors： Petrović MM,Vales K,Stojan G,Basta-Jovanović G,Mitrović DM

更新日期：2006-01-01 00:00:00

abstract：:The aim of our study was to test the immunosuppressive effect of gemcitabine in monotherapy following heterotopic SBT in the rat. The BN and LEW rats were used as donors and recipients, respectively. Recipients were divided into 4 groups--group A without immunosuppression, group B treated with a therapeutic dose of ta...

journal_title：Folia biologica

authors： Kudla M,Kríz J,Janotová D,Girman P,Mergental H,Kocík M,Honsová E,Adamec M

更新日期：2005-01-01 00:00:00

abstract：:B-chromosomes were observed in spermatogonial mitotic metaphases, meiotic metaphases I and II of Barpeithes pellucidus from one population in Slovakia. The number of B-chromosomes ranged from one to six per cell and they paired with the sex heterochromosomes in the first meiotic metaphase and rarely with the autosomes...

journal_title：Folia biologica

authors： Holecová M,Rozek M,Lachowska D

更新日期：2005-01-01 00:00:00

abstract：:Column (CC), thin-layer (TLC), high-performance liquid (HPLC) and ion-exchange chromatography (IEC), were used to investigate corotenoid and carotenoprotein complexes in Asellus aquaticus specimens from the Narew river. The following carotenoids were found: alpha-carotene, beta-carotene, beta-cryptoxanthin, lutein, ze...

journal_title：Folia biologica

authors： Czeczuga B,Czeczuga-Semeniuk E,Semeniuk A

更新日期：2005-01-01 00:00:00

abstract：:The flank skin of the premetamorphic stage of the green toad, Bufo viridis viridis, was studied by transmission electron microscopy. The skin was typically larval amphibian, made up of a highly fibrous and vascular dermis to the inside and a highly cellular epidermis to the outside with a distinct basal lamina separat...

journal_title：Folia biologica

authors： Al-Adhami MA,Qar JS

更新日期：2005-01-01 00:00:00

abstract：:The aim of this work was to determine the extent of bioaccumulation of sodium fluorides in tissues of snails under strictly controlled conditions, and also to determine resistance and tolerance to sodium fluoride load in these organisms. The study was performed on snails removed from aestivation. Quantitation of fluor...

journal_title：Folia biologica

authors： Rać ME,Stachowska E,Machoy Z

更新日期：2005-01-01 00:00:00

abstract：:The phosphor industry in Morocco employs a great number of workers that may be exposed to this essential but also toxic compound. In the present investigation, professionally exposed subjects from two different production lines (miners and production unit workers) were investigated for the presence of genetic damage i...

journal_title：Folia biologica

authors： Glouib K,Verschaeve L,Naber N,Hilali A

更新日期：2005-01-01 00:00:00

abstract：:In nonbroody birds, participation of prolactin in the reproductive functions is still unknown and its role in the local regulation of ovarian activity has had little attention. Therefore, the aim of the present study was to determine whether in the domestic hen prolactin influences in vitro steroid secretion by white ...

journal_title：Folia biologica

authors： Hrabia A,Paczoska-Eliasiewicz H,Rzasa J

更新日期：2004-01-01 00:00:00

abstract：:Drug addiction influences many physiological functions including reactions of the immune system. The higher occurence of infectious and other diseases in drug addicts has been explained by the depression of immunity due to the harmful effects of the drug. To test this assumption, we tested the proliferative responsive...

journal_title：Folia biologica

authors： Zajícová A,Wilczek H,Holán V

更新日期：2004-01-01 00:00:00

abstract：:Chromosome numbers and C-banding patterns of sixteen weevil species are presented. The obtained results confirm the existence of two groups of species with either a small or large amount of heterochromatin in the karyotype. The first group comprises twelve species (Apionidae: Oxystoma cerdo, Eutrichapion melancholicum...

journal_title：Folia biologica

authors： Lachowska D,Holecová M,Rozek M

更新日期：2004-01-01 00:00:00

abstract：:An increase in femoral and tibio/fibular bone mass following periosteal membrane stimulation by Moloney sarcoma virus inoculation into thigh muscles of mice was measured in situ on formalin fixed excised hind limbs using a Hologic 4500A Fan Beam X-ray bone densitometer adapted for small bone samples. These results wer...

journal_title：Folia biologica

authors： Dickson GR,Luczak M,Włodarski KH

更新日期：2004-01-01 00:00:00

abstract：:The presence of professional antigen-presenting cells in tumours can influence their further spreading. Location of cells exhibiting a specific marker of Langerhans cells--Langerin, and the 175 kD mannose receptor as a marker of dendritic cells of non-Langerhans type and macrophages, was studied using double staining ...

journal_title：Folia biologica

authors： Plzáková Z,Chovanec M,Smetana K Jr,Plzák J,Stork J,Saeland S

更新日期：2004-01-01 00:00:00

abstract：:Jan Svoboda has had an extraordinary influence on my research. Following our first meeting in 1967, he encouraged me to pursue my tentative evidence for the existence of endogenous retroviruses latent in normal cells. He introduced me to the Czech scientists, Pavel Veselý and Jan Závada, with whom I collaborated fruit...

journal_title：Folia biologica

authors： Weiss RA

更新日期：2004-01-01 00:00:00

abstract：:This work summarized the results of comparative chromosomal study of Cobitis fish from 13 locations in Poland. At least two distinct species C. taenia and C. elongatoides were cytogenetically recognized. The populations of C. taenia were detected in only three lakes located in northern Poland. One hybrid diploid, four...

journal_title：Folia biologica

authors： Boroń A

更新日期：2003-01-01 00:00:00

abstract：:Chimeric fish were produced using two strains of the loach as a model fish and their pigmentation was observed. Transplanting of 50-100 or 150-250 blastomeres from early-mid stage embryos of a wild-type strain to the blastoderm of an orange-type strain generated chimeras, and 60 pigmented chimeras were observed from 3...

journal_title：Folia biologica

authors： Nakagawa M,Ueno K

更新日期：2003-01-01 00:00:00

abstract：:Five age-classes and their corresponding average body lengths of loaches from Lake Lucień were determined by the Bhattacharya method. The maximum observed length was 112 mm for females and 91 mm for males. The von Bertalanffy equation defining growth pattern was L(T) = 116 (1-exp (-0.401(t+0.02. Body length distributi...

journal_title：Folia biologica

authors： Kostrzewa J,Przybylski M,Marszał L,Valladolid M

更新日期：2003-01-01 00:00:00

abstract：:The objective of the studies was to analyse the process of oogenesis in vimba from a non-migratory population living in the waters of Drawieński National Park in north-west Poland. The character of spawning of this species is an obstacle in determining the right moment to catch spawners or developing artificial spawni...

journal_title：Folia biologica

authors： Hliwa P,Demska-Zakeś K,Martyniak A,Król J

更新日期：2003-01-01 00:00:00

abstract：:The presence of Paramecium dodecaurelia (three strains) was recorded in Hawaii. ...

journal_title：Folia biologica

authors： Przyboś E,Fokin S

更新日期：2003-01-01 00:00:00

abstract：:A fragment of ME2 cDNA from exon 2 to exon 11 was sequenced and the sequence submitted to GenBank. Analysis of the intron, probably intron 13, revealed a polymorphism which is due to the presence of tandem repetitions of Xstir elements. Genetic analysis of the parents and the offspring showed a standard distribution o...

journal_title：Folia biologica

authors： Mácha J,Tlapáková T,Krylov V,Kopský V

更新日期：2003-01-01 00:00:00

abstract：:Changes in the salivary gland chromosomes are described in sibling species Prodiamesa olivacea Mg. and P. bureshi Michailova larvae collected from trace metal polluted and unpolluted areas in Bulgaria and the United Kingdom. Although both species from polluted and unpolluted areas show a high frequency of ectopic conj...

journal_title：Folia biologica

authors： Michailova PV,Ilkova J,White K

更新日期：2003-01-01 00:00:00

abstract：:The chromosome position of the Cd36 insert was determined by FISH in two rat transgenic lines (SHR/Ola-TgN(EF1aCd36)10Ipcv (SHR-TG10) and SHR/Ola-TgN(EF1aCd36)19Ipcv (SHR-TG19). The Cd36 transgene construct labelled with digoxigenin-11-dNTP was used as a probe in the FISH analysis. In accord with the previous finding ...

journal_title：Folia biologica

authors： Liska F,Levan G,Helou K,Sladká M,Pravenec M,Zídek V,Landa V,Kren V

更新日期：2002-01-01 00:00:00

abstract：:The analysis of the germ cell cluster formation in Anthonomus pomorum (Coleoptera, Polyphaga, Curculionidae) has revealed that both linear and branched clones of cystocytes occur in the pupa stage. In the branched clones a poorly developed polyfusome is formed and cystocytes with maximally 3 intercellular bridges were...

journal_title：Folia biologica

authors： Swiatek P

更新日期：2002-01-01 00:00:00

abstract：:Karyotypes of males of cicadas Tibicen bihamatus (Motschulski) and Platypleura kuroiwae Matsumura were studied using C-banding technique. In Tibicen bihamatus two types of C-band distribution were observed. Two chromosome pairs have C-bands at one of the chromosome ends, while in the other, including the sex chromosom...

journal_title：Folia biologica

authors： Perepelov E,Bugrov AG,Maryańska-Nadachowska A

更新日期：2002-01-01 00:00:00

abstract：:The aim of this paper was to assess whether the BMDC after freezing and thawing are capable to retain the immunophenotype and antigen-presenting capacity. BMDC were generated from bone marrow precursor cells as described previously by culturing the cells in medium containing GM-CSF and IL-4. Afterwards, the cells were...

journal_title：Folia biologica

authors： Mendoza L,Bubeník J,Indrová M,Bieblová J,Vonka V,Símová J

更新日期：2002-01-01 00:00:00

abstract：:The investigation of ovaries and the formation of egg envelopes of the stonefly Leuctra autumnalis was carried out with light and transmission electron microscopes. The ovary of the studied species is paired and consists of several dozen panoistic ovarioles opening individually to the oviduct. The process of egg capsu...

journal_title：Folia biologica

authors： Poprawa I,Baran A,Rościszewska E

更新日期：2002-01-01 00:00:00

abstract：:In this study, active chloride cell density in some tissues (gill arch epithelium, skin, and yolk-sac membrane) of rainbow trout (Oncorhynchus mykiss Walbaum, 1792) larvae during the early development stage was investigated using a vital fluorescence staining technique. It was found that the numbers of active chloride...

journal_title：Folia biologica

authors： Calta M

更新日期：2002-01-01 00:00:00

abstract：:The new habitat of Paramecium biaurelia was found on the Island Elba. ...

journal_title：Folia biologica

authors： Przyboś E,Fokin S

更新日期：2001-01-01 00:00:00

abstract：:Stereological analysis of the ultrastructure of primordial germ cells (PGCs) and the somatic (ectoderm) cells in two developmental stages of embryos and freshly hatched juveniles of Allacma fusca have shown great differences in mitochondria volume density (vd) between the two types of cells. In younger embryos (migrat...

journal_title：Folia biologica

authors： Swiatek P,Klag J,Romek M

更新日期：2001-01-01 00:00:00