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Tytuł:
Wpływ estru etylowego kwasu p-hydroksybenzoesowego na zdolność wbudowywania 32p do kwasów nukleinowych komórki zwierzęcej - w hodowli tkankowej
Vlijanie atilovogo afira p-gidrokibenaoinoi kisloty na cposobnost prisoedinenija 32 P k nukleinovym kislotam v aksplantacii zhivotnyh tkanei
The influence of ethyl p-hydroxybenzoate on the incorporation of 32p into nucleic acids of animal cells in tissue culture
Autorzy:
Fitak, B.
Lipinski, S.
Powiązania:
https://bibliotekanauki.pl/articles/873670.pdf
Data publikacji:
1970
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
estry etylowe
kwas p-hydroksybenzoesowy
kwasy nukleinowe
komorki zwierzece
hodowla tkankowa
zawartosc DNA
zawartosc RNA
ethyl ester
p-hydroxybenzoic acid
nucleic acid
animal cell
tissue culture
DNA content
RNA content
Źródło:
Roczniki Państwowego Zakładu Higieny; 1970, 21, 2
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rice improvement, involving altered flower structure more suitable to cross-pollination, using in vitro culture in combination with mutagenesis
Autorzy:
Min, S K
Powiązania:
https://bibliotekanauki.pl/articles/2048292.pdf
Data publikacji:
1998
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
japonica rice
radiation
China
mutagenesis
mutant
anther culture
in vitro
cross-pollination
hybridization
indica rice
somatic cell
Oryza sativa
rice
Opis:
Anther and somatic tissue culture in combination with mutagenesis were carried out to evaluate the efficiency of different mutagenic treatments of various in vitro culture materials, and to obtain some promising variants for rice improvement. Results indicated that in japonica rice radiation treatment of dry seeds and young panicles influenced the percentage of green plantlets regeneration from anther culture. Both treatments increased significantly the percentage of regenerated green plantlets in comparison with the control. Irradiation with 30 Gy of rice callus increased also the percentage of regenerated green plantlets. For indica rice, the combination of the suitable dose of gamma rays irradiation on seeds and an improved medium, increased the percentage of callus induction. This approach made it possible to use anther culture in indica rice breeding. Somatic tissue cultures combined with radiation-induced mutagenesis led to the development of a number of promising mutants including some new cytoplasm-nucleus interacting male-sterile lines with almost 100% stigma exsertion. Their development would be of practical significance for increasing the genetic diversity for production of hybrid rice.
Źródło:
Journal of Applied Genetics; 1998, 39, 2; 151-162
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cryptic rearrangements of chromosome 12 in testicular germ cell tumors with or without the specific i[12p] marker
Autorzy:
Grygalewicz, B
Pienkowska-Grela, B.
Woroniecka, R.
Powiązania:
https://bibliotekanauki.pl/articles/2043149.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
aberration
in situ
isochromosome
cytogenetic analysis
microdissection
testicular germ cell tumour
karyotype
cell culture
nonseminoma
fluorescence
hybridization
seminoma
chromosome 12
DNA
Źródło:
Journal of Applied Genetics; 2000, 41, 2; 123-131
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selection of frost-tolerant cell lines from cell cultures of Solanum tuberosum L.
Autorzy:
Anjum, Muhammad Akbar
Powiązania:
https://bibliotekanauki.pl/articles/2198823.pdf
Data publikacji:
2001-06-21
Wydawca:
Instytut Hodowli i Aklimatyzacji Roślin
Tematy:
potato
Solanum
cell culture
proline
hydoxyproline resistance
frost tolerance
Opis:
Fourteen hydroxyproline-resistant cell lines were selected by plating 7 days old cell suspensions of Solanum tuberosum L. cvs. Desiree and Maris Piper on a cell plating medium containing 5 or 10 mM hydroxyproline (hyp). Cell suspensions were either plated directly on selective media or after mutagenic treatment with gamma rays at a dose of 20 Gy or after freezing to –6°C. The frequency of resistant colonies varied from 0.15 to 0.35 x 10-6. Almost all the selected lines possessed increased levels of frost tolerance as compared to their non-selected controls except one indicating that hyp resistance and frost tolerance are not necessarily linked.
Źródło:
Plant Breeding and Seed Science; 2001, 45, 1; 3-10
1429-3862
2083-599X
Pojawia się w:
Plant Breeding and Seed Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of stress conditions on acclimation of magnolia Magnolia x soulangiana Soul.-Bod.
Wpływ warunków stresu na aklimatyzację magnolii Magnolia x soulangiana Soul.-Bod.
Autorzy:
Kamenicka, A.
Lanakova, M.
Cerna, K.
Powiązania:
https://bibliotekanauki.pl/articles/808264.pdf
Data publikacji:
2002
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
stress condition
acclimation
magnolia
Magnolia x soulangiana
tissue culture
leaf cell
donor plant
Opis:
Under a scanning microscope, leaves from tissue cultures (after 8 weeks in vitro culturing), from 1 year old regenerants and from the 100 years old donor tree were studied. More abnormalities were observed in the tissue culture compared to regenerant and donor. During tissue culture transfer rapid, leaf dehydration occurs due to defective regulation mechanisms making stomata of tissue culture stay open. Epidermis as well as stomata cells were observed already on the leaves in in vitro conditions, but they become physiologically functioning only after transfer into conditions of natural environment.
Przy zastosowaniu mikroskopu scaningowego porównywano cechy budowy komórek liści pochodzących z 100 letniej rośliny matecznej, 8 tygodniowych kultur tkankowych oraz 1 rocznych regeneratów. W regenerantach z kultur tkankowych obserwowano więcej nienormalności w budowie komórek epidermy, komórek szparkowych i komórek przyszparkowych w porównaniu z komórkami pochodzącymi z rośliny matecznej. Podczas przenoszenia tkanek w kulturze in vitro obserwowano odwodnienie tkanek liści a mimo to komórki szparkowe pozostawały otwarte. Komórki epidermy oraz komórki szparkowe były obecne na liściach hodowli in vitro jednak stawały się one fizjologicznie funkcjonalne tylko wtedy gdy zostały przeniesione do warunków naturalnych.
Źródło:
Zeszyty Problemowe Postępów Nauk Rolniczych; 2002, 481, 1
0084-5477
Pojawia się w:
Zeszyty Problemowe Postępów Nauk Rolniczych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biological and biochemical characteristics of Spodoptera exigua nuclear polyhedrosis virus [SeMNPV] [Baculoviridae] stored for a long time at different formulations
Autorzy:
Jakubowska, A.
Ziemnicka, J.
Powiązania:
https://bibliotekanauki.pl/articles/66562.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
insect population
Baculoviridae
commercial product
baculovirus
Spodoptera exigua
storage stability
cell culture
nuclear polyhedrosis virus
Źródło:
Journal of Plant Protection Research; 2003, 43, 3
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cadmium-induced changes in antioxidant enzymes in suspension culture of soybean cells.
Autorzy:
Sobkowiak, Robert
Rymer, Katarzyna
Rucińska, Renata
Deckert, Joanna
Powiązania:
https://bibliotekanauki.pl/articles/1043349.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
ascorbate peroxidase
superoxide dismutase
peroxidase
soybean cell suspension culture
catalase
cadmium
Opis:
Cadmium (Cd), similarly to other heavy metals, inhibits plant growth. We have recently showed that Cd2+ either stimulates (1-4 μM) or inhibits (ł 6 μM) growth of soybean (Glycine max L.) cells in suspension culture (Sobkowiak & Deckert, 2003, Plant Physiol Biochem. 41: 767-72). Here, soybean cell suspension cultures were treated with various concentrations of Cd2+ (1-10 μM) and the following enzymes were analyzed by native electrophoresis: superoxide dismutase (SOD), catalase (CAT), peroxidase (POX) and ascorbate peroxidase (APOX). We found a significant correlation between the cadmium-induced changes of soybean cell culture growth and the isoenzyme pattern of the antioxidant enzymes. The results suggest that inhibition of growth and modification of antioxidant defense reactions appear in soybean cells when Cd2+ concentration in culture medium increases only slightly, from 4 to 6 μM.
Źródło:
Acta Biochimica Polonica; 2004, 51, 1; 219-222
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improvement of growth parameters of prune callus cultures destined to initiate cell suspensions
Autorzy:
Hanus-Fajerska, E
Powiązania:
https://bibliotekanauki.pl/articles/57881.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Botaniczne
Tematy:
improvement
growth parameter
prune
callus culture
cell suspension
Prunus domestica
growth regulator
proliferation
Opis:
Callus was inducted on wounded leaf explants from shoot tips of a particular Prunus domestica 'Węgierka Zwykła' clone cultivated in vitro. The improvement of Sweet Common Prune stock callus tissue parameters has been approached by experiments on culture protocols. Either for the induction or maintenance of tissue modified Murashige and Skoog medium, supplemented with different auxins and cytokinins at varying concentrations, was used. The goal was to obtain the highiest possible proliferative capacity of friable tissue without any signs of cell redifferentiation for about 10 weeks. The choice of auxin was an important factor regulating the rate and kind of tissue growth, and for the examined prune clone auxin alone brought a relatively small proportion of cells into division, so advantageous was to combine it with oxygenated cytokinin. Friable tissue was obtained on media supplemented with dicamba or with picloram, but not with 2.4-D neither alone nor combinated with IBA.
Źródło:
Acta Societatis Botanicorum Poloniae; 2006, 75, 1; 5-9
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of selenium accumulation in Rhodotorula rubra cells by treatment of culturing medium with pulse electric field
Autorzy:
Pankiewicz, U.
Jamroz, J.
Schodzinski, A.
Powiązania:
https://bibliotekanauki.pl/articles/24423.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:
optimization
cell
culture medium
treatment
Rhodotorula rubra
pulse electrical field
selenium accumulation
Źródło:
International Agrophysics; 2006, 20, 2
0236-8722
Pojawia się w:
International Agrophysics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hepatitis C - new developments in the studies of the viral life cycle
Autorzy:
Rychłowska, Małgorzata
Bieńkowska-Szewczyk, Krystyna
Powiązania:
https://bibliotekanauki.pl/articles/1040855.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
hepatitis C virus
HCV replicons
HCVcc-cell culture-derived
HCV pseudoparticles
Opis:
Hepatitis C virus (HCV) is a causative agent of chronic liver disease leading to cirrhosis, liver failure and hepatocellular carcinoma. The prevalence of HCV is estimated as 3% of the world population and the virus is a major public health problem all over the world. For over 16 years, since HCV had been discovered, studies of the mechanisms of the viral life cycle and virus-host interactions have been hampered by the lack of a cell culture system allowing the virus to be grown in laboratory conditions. However, in recent years some new model systems to study HCV have been developed. The major breakthrough of the last two years was the cell culture system for maintaining the virus in an adapted hepatocyte-derived cell line. This review describes the techniques and applications of most of the in vitro systems and animal models currently used for working with hepatitis C virus.
Źródło:
Acta Biochimica Polonica; 2007, 54, 4; 703-715
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Endothelial cells on pet vascular prostheses impregnated with polyester-based copolymers and coated with cell-adhesive protein assemblies
Autorzy:
Chlupac, J.
Filova, E.
Riedel, T.
Brynda, E.
Pamuła, E.
Lisa, V.
Bacakova, L.
Powiązania:
https://bibliotekanauki.pl/articles/284406.pdf
Data publikacji:
2008
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
vascular prostheses
polyethylene terephtalate
poly(glycolide-L-lactide)
poly(glycolide-L-lactide-(ε)caprolactone)
extracellular matrix
surface modification
collagen
laminin
fibronectin
fibrin
endothelial cells
static cell culture
Opis:
Arterial bypass surgery with synthetic vascular prostheses achieves poor patency rates compared to autogenous natural materials, and this is a challenge for tissue engineering research concerning small caliber vascular grafts. Modifications of the prosthetic surface followed by endothelial cell seeding may reduce thrombogenicity and intimal hyperplasia. Planar polyethylene terephthalate (PET) vascular prosthetic samples were impregnated with the copolymer poly(glycolide-L-lactide) (PGL) or with the terpolymer poly(glycolide-L-lactide-(e)caprolactone) (PGLCap) in order to lower the permeability of the knitted fabrics and ensure a less adhesive background. Subsequent modification with adhesive protein assemblies composed of collagen type I (Co) in conjunction with laminin (LM), fibronectin (FN) or fibrin (Fb) gel was performed to enhance cell adhesion. Bovine pulmonary artery endothelial cells (EC) of the CPAE line were seeded on to the coatings and subjected to static tissue culture conditions for 7 days. Impregnation of the PET prostheses decreased the initial adhesion and proliferation of the EC. After coating with the protein assemblies, the impregnated PET provided better substrates for cell culture than the protein-coated PET, on which the EC population started decreasing after 4 days of culture. The cells proliferated better on the CoFN, CoFb and CoFbFN coatings than on the Co and CoLM coatings. Impregnation type and adhesive matrix protein deposition may play an important role in successful endothelialization, healing and clinical performance of vascular grafts.
Źródło:
Engineering of Biomaterials; 2008, 11, no. 81-84; 108-111
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photodynamic therapy procedures in the microfluidic system
Autorzy:
Jędrych, E.
Pawlicka, Z.
Chudy, M.
Dybko, A.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/115635.pdf
Data publikacji:
2010
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
photodynamic therapy (PDT)
microfl uidic culture system
PDMS
adherent cell culture
concentration gradient generator (CGG)
5-aminolevulinic acid (ALA)
Opis:
Evaluation of the effi ciency of photodynamic therapy (PDT) in a hybrid microfl uidic culture system was studied. The geometry of the utilized microsystem for PDT procedures consists microchambers for cell culture and microchannels, which create a concentration gradient generator (CGG). 5-aminolevulinic acid (ALA) as a precursor of the photosensitizer was used. The geometry of the microchip allowed to test diff erent concentrations of ALA in a single assay. Evaluation of the effi ciency of photodynamic therapy was determined 24 hours after PDT procedure (irradiation with light which induced accumulated in carcinoma cells). The performed microsystem contained two independent micropatterns, that enables examination simultaneously various cell lines (carcinoma and normal) or various photosensitizers.
Źródło:
Challenges of Modern Technology; 2010, 1, 1; 30-33
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
‘Lab-on-a-chip’ for cell engineering: towards cellular models mimicking in vivo
Autorzy:
Ziółkowska, K.
Chudy, M.
Dybko, A.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/115885.pdf
Data publikacji:
2011
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
Lab-on-a-chip
microfluidic tools
cancer
cell culture
Multicellular Tumor Spheroid (MCTS)
Opis:
One of the main scopes of modern cell engineering is development of cellular models that can replace animals in drug screening and toxicological tests, so called alternative methods. Construction of the alternative model is a very challenging task due to a richness of factors creating the in vivo environment. The monolayer cell culture — cultivation of adhesive cells on artificial surfaces such as glass or polymer — lack most of the in vivo-like interactions, but still is the only tool for the majority of applications. One of the most prospective approaches on mimicking in vivo environment is “Lab-on-a-chip” technology. Microfluidic devices offer lots of advantages over traditional in vitro culture, e.g. much higher cell volume-to-extracellular fluid volume ratio or possibility of regulation of hydrodynamic stress. This presentation aims to introduce latest advances of our team in microfluidic cell culture devices. Our novel approach is to cultivate three dimensional multicellular aggregates (spheroids) in microenvironments arranged in a microfluidic system. The geometry and materials of the system allow for cultivation, observation and analysis of multicellular spheroids. The results presented concern multicellular tumor spheroids (MCTS) rising from human cancer cells, which are considered to represent most of the conditionings of cancer tumor in vivo. The fully developed MCTS microdevice will be a reliable tool for anticancer drug screening, as the results most likely will be in a close accordance with the results obtained in vivo.
Źródło:
Challenges of Modern Technology; 2011, 2, 1; 79-82
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cardiac endothelial cells isolated from mouse heart - a novel model for radiobiology
Autorzy:
Jelonek, Karol
Walaszczyk, Anna
Gabryś, Dorota
Pietrowska, Monika
Kanthou, Chryso
Widłak, Piotr
Powiązania:
https://bibliotekanauki.pl/articles/1039895.pdf
Data publikacji:
2011
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
cardiac endothelial cells
radiation
cardiotoxicity
primary cell culture
stress response
Opis:
Cardiovascular disease is recognized as an important clinical problem in radiotherapy and radiation protection. However, only few radiobiological models relevant for assessment of cardiotoxic effects of ionizing radiation are available. Here we describe the isolation of mouse primary cardiac endothelial cells, a possible target for cardiotoxic effects of radiation. Cells isolated from hearts of juvenile mice were cultured and irradiated in vitro. In addition, cells isolated from hearts of locally irradiated adult animals (up to 6 days after irradiation) were tested. A dose-dependent formation of histone γH2A.X foci was observed after in vitro irradiation of cultured cells. However, such cells were resistant to radiation-induced apoptosis. Increased levels of actin stress fibres were observed in the cytoplasm of cardiac endothelial cells irradiated in vitro or isolated from irradiated animals. A high dose of 16 Gy did not increase permeability to Dextran in monolayers formed by endothelial cells. Up-regulated expression of Vcam1, Sele and Hsp70i genes was detected after irradiation in vitro and in cells isolated few days after irradiation in vivo. The increased level of actin stress fibres and enhanced expression of stress-response genes in irradiated endothelial cells are potentially involved in cardiotoxic effects of ionizing radiation.
Źródło:
Acta Biochimica Polonica; 2011, 58, 3; 397-404
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Novel designs and technologies for cell engineering
Autorzy:
Ziółkowska, K.
Chudy, M.
Dybko, A.
Brzózka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/115526.pdf
Data publikacji:
2011
Wydawca:
Fundacja na Rzecz Młodych Naukowców
Tematy:
lab-on-a-chip
multicellular tumor spheroid
cancer
in vitro cell culture
cell engineering
Opis:
Microfluidic devices, such as lab-on-a-chip systems, are highly advantageous for cell engineering and cell based assays. It is a particularly useful approach for development of the in vitro cellular systems mimicking the in vivo environment. In this paper, a novel lab-on-a-chip device for three-dimensional human cell culture and anticancer drug testing is presented. Cells were cultured as Multicellular Tumor Spheroids (MCTS) — the best cancer tumor model developed so far. Diff erent designs were tested and novel technique of microfabrication in poly(dimethylsiloxane) was developed. MCTS were cultured in a system of polymeric microwells, with the network of microfluidic channels for culture medium flow. Design included optimal shear stress and proper nutrients supply for cultured cells. Final design provided MCTS culture for four weeks with the homeostasis-like state achievement, which is characteristic for the in vivo situation.
Źródło:
Challenges of Modern Technology; 2011, 2, 4; 54-60
2082-2863
2353-4419
Pojawia się w:
Challenges of Modern Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
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