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Wyświetlanie 1-15 z 38
Tytuł:
Express analysis of chitosan and its derivatives by gel electrophoresis
Autorzy:
Konovalova, Mariya
Shagdarova, Balzhima Ts.
Zubov, Vitaliy
Svirshchevskaya, Elena
Powiązania:
https://bibliotekanauki.pl/articles/1034210.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
agarose gel electrophoresis
chitosan
chitosan derivatives
degree of deacetylation
molecular weight
Opis:
Chitosan is one of the most promising polymers for biomedical applications due to its unique properties, such as its biocompatibility, low toxicity, biodegradation, and the presence of reactive amino and hydroxyl groups. Analysis of physicochemical properties of chitosan and its derivatives is a time-consuming process and requires expensive equipment and large amounts of the sample. This paper proposes a method for express analysis of the molecular weight (MW), the degree of deacetylation (DD), the substitution degree (SD), and the charge of chitosan and its derivatives using agarose gel electrophoresis under acidic and neutral conditions with Coomassie staining. Positively charged chitosan samples required acidic Tris Acetate-EDTA (TAE) buffer to move in the gel. The electrophoretic mobility of chitosan depended on MW, DD, SD, and the chitosan charge. Based on the dependences obtained by the proposed method, the MW and DD of commercial chitosan samples were determined. Express analysis of chitosan and its derivatives in agarose gel can be used to monitor the reactions of chitosan modification and to analyse samples with unknown characteristics.
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2019, 24; 84-95
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phaseolin seed variability in common bean [Phaseolus vulgaris L.] by capillary gel electrophoresis
Autorzy:
Salmanowicz, B P
Powiązania:
https://bibliotekanauki.pl/articles/2041989.pdf
Data publikacji:
2001
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
common bean
seed variability
phaseolin
capillary gel electrophoresis
storage protein
bean
Phaseolus vulgaris
genetic diversity
Źródło:
Journal of Applied Genetics; 2001, 42, 3; 269-281
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agarose gel electrophoresis pattern of serum alkaline phosphatase isoenzymes in Holstein cows during lactation
Autorzy:
Chiba, A.
Hatate, K.
Onomi, R.
Moriyama, T.
Goto, A.
Yamagishi, N.
Powiązania:
https://bibliotekanauki.pl/articles/2087309.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
agarose gel electrophoresis (AGE)
alkaline phosphatase isoenzyme
lactating cow
Źródło:
Polish Journal of Veterinary Sciences; 2020, 23, 2; 317-319
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of usefulness of a commercial agarose gel electrophoresis kit (QuickGel SP) for bovine serum protein electrophoresis
Autorzy:
Okatsu, Y.
Yamagishi, N.
Hatate, K.
Devkota, B.
Powiązania:
https://bibliotekanauki.pl/articles/2087902.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Źródło:
Polish Journal of Veterinary Sciences; 2017, 3; 527-534
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mapping of polar fox renal cortex proteins using two-dimensional gel electrophoresis and mass spectrometry – a preliminary study
Autorzy:
Ciechanowicz, A.K.
Ozgo, M.
Stanski, L.R.
Herosimczyk, A.
Piotrowska, A.
Szymeczko, R.
Laszczynska, M.
Skrzypczak, W.F.
Powiązania:
https://bibliotekanauki.pl/articles/30461.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
The aim of the present study was to establish protein map of polar fox (Alopex lagopus) renal cortex. Kidney cortex proteins of isoelectric point ranging from 3 to 10 were analysed using two-dimensional electrophoresis and MALDI-TOF mass spectrometry. Sixteen protein spots corresponding to thirteen different gene products were identified. These proteins were divided into following groups: lipid and fatty acid metabolism, amino acid metabolism, energetic pathways, regulatory proteins, transport proteins and structural proteins. This is the first attempt to create reproducible 2-D map, of renal cortex proteins characteristic for polar foxes, used as animal model for carnivores. It is worth emphasizing that the results of this study may broaden currently available protein databases.
Źródło:
Polish Journal of Veterinary Sciences; 2014, 17, 2; 231-237
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of antisense peptide binding on the dimerization of human cystatin C - gel electrophoresis and molecular modeling studies.
Autorzy:
Stachowiak, Krystyna
Rodziewicz-Motowidło, Sylwia
Sosnowska, Renata
Kasprzykowski, Franciszek
Łankiewicz, Leszek
Grubb, Anders
Grzonka, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/1043334.pdf
Data publikacji:
2004
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
dimerization
antisense peptides
human cystatin C
molecular dynamics
Opis:
Human cystatin C (HCC) shows a tendency to dimerize. This process is particularly easy in the case of the L68Q HCC mutant and might lead to formation of amyloid deposits in brain arteries of young adults. Our purpose was to find ligands of monomeric HCC that can prevent its dimerization. Eleven antisense peptide ligands of monomeric HCC were designed and synthesized. The influence of these ligands on HCC dimerization was studied using gel electrophoresis and molecular modeling methods. The results suggest that all the designed peptides interact with monomeric HCC facilitating its dimerization rather than preventing it.
Źródło:
Acta Biochimica Polonica; 2004, 51, 1; 153-160
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of Polish feline B. henselae isolates by multiple-locus tandem repeat analysis and pulse-field gel electrophoresis
Autorzy:
Podsiadly, E.
Haddad, N.
Berrich, M.
Bouchouicha, R.
Durand, B.
Monteil, M.
Boulouis, H.-J.
Tylewska-Wierzbanowska, S.
Powiązania:
https://bibliotekanauki.pl/articles/49348.pdf
Data publikacji:
2012
Wydawca:
Instytut Medycyny Wsi
Opis:
Knowledge about molecular epidemiology of B. henselae is important for recognizing the geographical distribution of strains and identification of isolates virulent for humans. Eleven Polish feline B. henselae isolates were typed, using 2 different techniques: pulse-field gel electrophoresis (PFGE) and multiple-locus variable-number tandem repeat analysis (MLVA). PFGE analysis distinguished 6 different PFGE types, with subtypes within 3 of them, whereas 10 MLVA types were assigned. Global diversity index (D.I.) for MLVA equaled 0.93. For 7 isolates, the results of MLVA confirmed cluster assignments based on PFGE. Both PFGE and MLVA results were in accordance with epidemiological data. Although PFGE has been previously demonstrated to be a suitable method for the differentiation of B. henselae isolates/strains, our results show the superiority of MLVA over PFGE with respect to higher discriminatory power, distinguishing genotypes I and II isolates, easier analysis of results, and possibility to compare the numerical data obtained by different laboratories. With MLVA, 7 new profiles were observed, compared to previous results from around the world; whereas 3 known profiles were previously described mainly in European B. henselae isolates. Our results confirm that some VNTR profiles can be used as specific geographical markers.
Źródło:
Annals of Agricultural and Environmental Medicine; 2012, 19, 1
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of plasma bone-specific alkaline phosphatase isoenzyme activity in Holstein calves using a commercial agarose gel electrophoresis kit
Autorzy:
Onomi, R.
Hatate, K.
Yamagishi, N.
Powiązania:
https://bibliotekanauki.pl/articles/2087395.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
agarose gel electrophoresis (AGE)
bone-specific alkaline phosphatase isoenzyme
calf
Źródło:
Polish Journal of Veterinary Sciences; 2019, 4; 789-792
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
DNA double-strand break rejoining in radioadapted human lymphocytes: evaluation by neutral comet assay and pulse-field gel electrophoresis
Autorzy:
Wojewódzka, M.
Buraczewska, I.
Szumiel, I.
Grądzka, I.
Powiązania:
https://bibliotekanauki.pl/articles/146153.pdf
Data publikacji:
2006
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
human lymphocytes
radioadaptation
DNA double-strand break rejoining
neutral comet assay
pulsefield gel electrophoresis
Opis:
Adaptive response (AR), an enhanced resistance to a high dose of ionising radiation acquired after pretreatment with a very low dose, was estimated in normal human lymphocytes. The question posed was whether the extent of radioadaptation, assessed by micronucleus test, would be related to the rate of DNA double-strand break (DSB) rejoining. Phytohemagglutinin-stimulated G1-lymphocytes from 5 healthy male volunteers were pre-treated (or not) with an adaptive (5 cGy) dose of X-rays, followed by a higher (5 or 10 Gy) challenge dose after 20-22 h. DSB rejoining after the challenge dose was monitored with the use of two methods: neutral comet assay, modified to reduce the contribution of single-strand breaks (SSBs) and thermolabile sites, and pulse-field gel electrophoresis (PFGE), specific for DSBs. At the level of micronuclei, an AR was observed in lymphocytes of 3 of 5 donors. Up to 60 min, comet assay showed no statistically significant differences in DNA break rejoining between adapted and non-adapted lymphocytes, independently of AR appearance. PFGE gave similar results, although in three donors it revealed secondary increases in DSBs levels at 30 min and/or 60 min post-irradiation in the adapted vs. the non-adapted samples. Failure to demonstrate changes in DSBs rejoining rate in the adapted lymphocytes could be due to diversity of AR intensity/timing at the level of DNA repair in not fully homogenous cell populations. Also, “rare” DNA cuts characteristic of early apoptosis/necrosis could overlap the process of DNA break rejoining.
Źródło:
Nukleonika; 2006, 51, 4; 185-191
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pulsed-field gel electrophoresis as a molecular tool for characterizing genomes of certain food-borne bacterial isolates - a review
Autorzy:
Pal, P.
Powiązania:
https://bibliotekanauki.pl/articles/10819.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
The evolutionary transition from phenotypic to molecular analysis of infectious disease in bacterial epidemiology led to the search for suitable approaches to ascertain genomic relatedness or heterogeneity between bacterial clinical isolates. Pulsed-field gel electrophoresis (PFGE) technique was developed for separating and analyzing long DNA fragments of several megabases in alternating electric field. Comparison of electrophoresis profiles of restriction enzyme-digested genomic DNA from bacterial isolates has proved to be a useful epidemiological tool for genetic discrimination of bacterial strains, detection of genetic relatedness, to locate the source of outbreak and to monitor the spread of the microorganisms in endemic zones. PFGE is considered as a gold standard method for typing of bacterial isolates because of the remarkable endurance of this technique as a typing method for the last 20 years in molecular epidemiology. In this current review the pros and cons of PFGE use in current molecular microbiological research are explored in the context of determination of genome organization of certain food-borne bacterial isolates causing infectious diseases in human beings.
Źródło:
International Letters of Natural Sciences; 2015, 02
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Applicability of 2D gel electrophoresis and liquid chromatography in proteomic analysis of urine using mass spectrometry MALDI-TOF
Autorzy:
Banach, T.
Adaszek, L.
Wylupek, D.
Winiarczyk, M.
Winiarczyk, S.
Powiązania:
https://bibliotekanauki.pl/articles/32139.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
Proteomics including the studies of the structure, function and dependences between proteins is more and more extensively applied in human medicine and veterinary medicine. The analysis of protein profiles of tissues and body fluid from healthy and ill individuals allows to identify diagnostic, prognostic and predictive markers in various pathological states in people and animals. This paper presents preparation of urine samples for analysis in the mass spectrometer MALDI-TOF (Ultraflextreme, Bruker, Bremen, Germany) by means of two methods: liquid chromatography based on the system Nano-LC (PROTEINER FC II, Bruker Daltonics, Bremen Germany). and two-direction electrophoresis 2DE (GE Healthcare, United Kingdom). Both methods enable separation of the mixture under consideration into individual fractions of high purity indispensable for obtaining readable mass spectra. The purpose of this paper is to determine applicability of these methods in analysis of protein composition of urine samples.
Źródło:
Polish Journal of Veterinary Sciences; 2013, 16, 3
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Native nucleic acid electrophoresis as an efficient alternative for genotyping method of influenza virus
Autorzy:
Pajak, Beata
Lepek, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/1039250.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
gel electrophoresis
SSCP
influenza
minor genetic variants
Opis:
Influenza viruses are the worldwide major causative agents of human and animal acute respiratory infections. Some of the influenza subtypes have caused epidemics and pandemics among humans. The varieties of methods are available for the rapid isolation and identification of influenza viruses in clinical and environmental samples. Since nucleic acids amplification techniques such as RT-PCR have been adapted, fast and sensitive influenza type and subtype determination is possible. However, in some ambiguous cases other, more detailed assay might be desired. The genetic material of influenza virus is highly unstable and constantly mutates. It is known that single nucleotide polymorphisms (SNPs) results in resistance to commercially available anti-viral drugs. The genetic drift of the virus could also result in weakening of immune response to infection. Finally, in a substantial number of patients co-infection with various virus strains or types has been confirmed. Although the detection of co-infection or presence of minor genetic variants within flu-infected patients is not a routine procedure, a rapid and wide spectrum diagnostics of influenza virus infections could reveal an accurate picture of the disease and more importantly, is crucial for choosing the appropriate therapeutics and virus monitoring. Herein we present the evidences that native gel electrophoresis and MSSCP - a method based on multitemperature single strand conformation polymorphism could furnish a useful technique for minor variants, which escape discovery by conventional diagnostic assays.
Źródło:
Acta Biochimica Polonica; 2014, 61, 3; 479-483
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zastosowanie elektroforezy na żelu skrobiowym w nefrologii klinicznej
Primenenie ehlektroforeza na krakhmalnom zhele klinicheskojj nefrologii
Starch gel electrophoresis in clinical nephrology
Autorzy:
Cykin, D. B.
Szczerba, M. M.
Michajłowa, E. N.
Powiązania:
https://bibliotekanauki.pl/articles/2189856.pdf
Data publikacji:
1969
Wydawca:
Polskie Towarzystwo Diagnostyki Laboratoryjnej
Źródło:
Diagnostyka Laboratoryjna; 1969, 05, 1-2; 159-162
0867-4043
Pojawia się w:
Diagnostyka Laboratoryjna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fractionation of DNA isolated from lymphocytes of patients under therapy with the antiblastic drug cis-diamminedichloroplatinum(II) using pulsed field gel electrophoresis
Autorzy:
Jaruga, Paweł
Zastawny, Tomasz
Tujakowski, Jerzy
Oliński, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/1045507.pdf
Data publikacji:
1993
Wydawca:
Polskie Towarzystwo Biochemiczne
Źródło:
Acta Biochimica Polonica; 1993, 40, 1; 60-62
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 38

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