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Wyświetlanie 1-15 z 51
Tytuł:
A study on influence of different signs of air-ions on sister-chromatid exchange frequency and chromosome aberration in human peripheral blood lymphocytes
Autorzy:
Wiszniewski, A
Kretowicz, T.
Powiązania:
https://bibliotekanauki.pl/articles/2043653.pdf
Data publikacji:
1999
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
blood lymphocyte
sister-chromatid exchange
man
peripheral blood lymphocyte
lymphocyte
chromosome aberration
Źródło:
Journal of Applied Genetics; 1999, 40, 2; 129-134
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of cysteine on mechlorethamine - induced chromosomal aberrations in cultured human lymphocytes
Autorzy:
Blaszczyk, A
Powiązania:
https://bibliotekanauki.pl/articles/2048200.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cysteine
lymphocyte
human lymphocyte
chromosome aberration
in vitro
mechlorethamine
mutagenicity test
Opis:
The aim of the present paper was to find out by in vitro chromosomal aberration test using human lymphocytes whether cysteine has anticlastogenic properties towards a well-known mutagen - mechlorethamine. The lymphocytes tested were obtained from three healthy donors. Two doses of cysteine (1.0 and 2.0 μg/ml) and three doses of mechlorethamine (0.1,0.2 and 0.3 μg m⁻¹) were tested. It was found that cysteine had anticlastogenic properties and that it reduced the number of metaphases with chromosomal aberrations induced by mechlorethamine.
Źródło:
Journal of Applied Genetics; 1995, 36, 4; 389-393
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of florfenicol on lymphocyte subsets and humoral immune response in mice
Autorzy:
Lis, M.
Szczypka, M.
Suszko, A.
Switala, M.
Obminska-Mrukowicz, B.
Powiązania:
https://bibliotekanauki.pl/articles/31732.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
florfenicol
lymphocyte
T lymphocyte
B lymphocyte
humoral immune response
mice
mouse
antibiotic
domestic animal
Opis:
Florfenicol is a broad-spectrum bacteriostatic antibiotic used in domestic animals. The aim of the study was to determine the effect of florfenicol on the total number of lymphocytes in the thymus, spleen and mesenteric lymph nodes and the percentage and the absolute number of T cell subsets (CD4+CD8+, CD4-CD8-, CD4+, CD8+) in the thymus and T (CD3+, CD4+, CD8+) and B (CD19+) lymphocytes in the peripheral lymphatic organs in non-immunized mice and humoral immune response in sheep red blood cells (SRBC)-immunized mice. Florfenicol was administered orally at a dose of 30 mg/kg six times at 24 h intervals to non-immunized mice and four or seven times at 24 h intervals to SRBC-immunized mice. SRBC was injected 2 hours prior to the first dose of the drug. Florfenicol increased the percentage of CD4-CD8- thymocytes and the absolute number of CD4+ and CD8+ thymocytes on day 7. The increased percentage and absolute number of CD3+, CD4+ and CD8+ lymphocytes in mesenteric lymph nodes and decreased percentage of lymphocytes B were also observed 24 hours from the last administration of florfenicol. Florfenicol administered after SRBC immunization reduced the number of plaque forming cells (PFC) and the production of anti-SRBC antibodies on days 4 and 7 after priming.
Źródło:
Polish Journal of Veterinary Sciences; 2011, 14, 2
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Relationship between DNA replication and DNA repair in human lymphocytes proliferating in vitro in the presence and in absence of mutagen
Autorzy:
Szyfter, K
Wiktorowicz, K.
Wielgosz, M.S.
Zajaczek, S.
Kujawski, M.
Jaloszynski, P.
Czub, M.
Markowska, J.
Powiązania:
https://bibliotekanauki.pl/articles/2048210.pdf
Data publikacji:
1995
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
genotoxicity
DNA replication
human lymphocyte
DNA repair
lymphocyte proliferation
mutagenesis
in vitro
Opis:
The effects of mutagens on DNA replication and DNA repair were studied in peripheral blood lymphocytes (PBL) obtained from 21 healthy subjects, 2 samples from healthy heterozygote of Xeroderma pigmentosum (XP) and 2 samples from patient with clinically recognised XP. Inter-individual variations were found in DNA replication and in the level of spontaneous DNA repair measured under standard culture condition. Exposure of human PBL proliferating in vitro to B(a)P was followed by a partial inhibition of replicative DNA synthesis in all subjects and by an induction of DNA repair in healthy subjects. In XP patients DNA repair synthesis remained at the level attributed to spontaneous DNA repair. The response to mutagen varied individually. Results were analysed statistically. It was established that the studied indices of DNA synthesis correlate well with each other. The highest correlation was found between the levels of spontaneous and B(a)P-induced DNA repair. It is concluded that the level of spontaneous DNA repair is predictive for an estimation of cells ability to repair DNA damage. Inter-individual variations in the inhibition of DNA replication and in DNA repair synthesis are also dependent on the type of mutagen as shown by effects of other mutagens. Different effects of mutagen exposure on the inhibition of DNA replicative synthesis and induction of DNA repair can be explained by genetically controlled differences in the activity of enzymes responsible for mutagen processing and lesion removal.
Źródło:
Journal of Applied Genetics; 1995, 36, 4; 379-388
1234-1983
Pojawia się w:
Journal of Applied Genetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cytometric analysis of lymphocytes T and B in rabbits infected with non-haemagglutinogenic strains of RHD virus [rabbit heamorrhagic disease] - Rainham, Frankfurt and Asturias
Autorzy:
Niedzwiedzka-Rystwej, P
Deptula, W.
Powiązania:
https://bibliotekanauki.pl/articles/31408.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
T lymphocyte
B lymphocyte
cytometric analysis
rabbit
rabbit hemorrhagic disease virus
infection
animal infection
non-hemagglutinogenic strain
Opis:
The present paper refers to the cytometric analysis of lymphocytes T (with receptor CD5+), Th (with receptor CD4+), Tc/Ts (with receptor CD8+), lymphocytes CD25+ and lymphocytes B with receptor CD19+ in rabbits experimentally infected with strains of RHD virus - Rainham, Frankfurt and Asturias, not having haemagglutinogenic capacities, which makes them unique, as haemagglutinogenic capacity is a classic and typical property of most strains of this virus. The study was performed in the dynamic system, drawing blood samples from animals at hour 0, namely before the administration of the viral antigen, and then at 4, 8, 12, 24 and 36 h after the infection. The study indicated that Rainham and Asturias strains of RHD virus cause a similar amount of changes as the most immunogenic haemagglutinogenic strains CAMP V-561 and CAMP V-562 of the RHD virus do. In contrast, the Frankfurt strain of the RHD virus is characterised with 5-6-fold lower reactivity in this respect and is most similar to the least immunogenic haemagglutinogenic strain CAMP V-558 of the RHD virus.
Źródło:
Polish Journal of Veterinary Sciences; 2010, 13, 1; 157-162
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dose-dependent in vivo effect of Rhodiola and Echinacea on the mitogen-induced lymphocyte proliferation in mice
Autorzy:
Skopińska-Rozewska, E.
Sokolnicka, I.
Siwicki, A.K.
Stankiewicz, W.
Dabrowski, M.P.
Buchwald, W.
Krajewska-Patan, A.
Mielcarek, S.
Mscisz, A.
Furmanowa, M.
Powiązania:
https://bibliotekanauki.pl/articles/31333.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
in vivo effect
Rhodiola rosea
Echinacea purpurea
Echinacea angustifolia
Rhodiola quadrifida
mitogen-induced lymphocyte
lymphocyte
proliferation
mice
mouse
Opis:
Echinacea purpurea (EP) and Echinacea angustifolia (EA) are ones of the most important world’s herbs with immunotropic activity. They were traditional medicinal plants used by North American Indians for the treatment of various illnesses. Now they are cultivated in many countries and are used mainly to treat respiratory tract infections. Rhodiola rosea (RR) and Rhodiola quadrifida (RQ) are medicinal plants originated from Asia and used traditionally as adaptogens, antidepressants, and anti-inflammatory remedies. We previously reported, that extracts of underground parts of RR and RQ exhibited immunotropic activity. We have demonstrated in pigs that in vitro RR or RQ supplementation of blood lymphocyte cultures stimulated T cell proliferative response to Con A in lower, and inhibited it in higher Rhodiola extract concentrations. The aim of this work was to evaluate the in vivo effect of these herbal remedies on the in vitro proliferative response of mouse splenic lymphocytes to another T-cell mitogen- Phaseolus vulgaris haemagglutinin (PHA). We have found significant stimulation of proliferative response, in comparison to the controls, in mice fed lower doses of tested remedies, and inhibition, no effect or lower stimulation, in mice fed higher doses of these drugs.
Źródło:
Polish Journal of Veterinary Sciences; 2011, 14, 2
1505-1773
Pojawia się w:
Polish Journal of Veterinary Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Expression of cellular isoform of prion protein on the surface of peripheral blood lymphocytes among women exposed to low doses of ionizing radiation
Autorzy:
Klucinski, P
Mazur, B.
Hrycek, A.
Masluch, E.
Cieslik, P.
Kaufman, J.
Martirosian, G.
Powiązania:
https://bibliotekanauki.pl/articles/50336.pdf
Data publikacji:
2007
Wydawca:
Instytut Medycyny Wsi
Tematy:
blood lymphocyte
ionizing radiation
low dose
lymphocyte
cellular isoform
woman
radiation exposure
expression
prion protein
Opis:
Ionizing radiation affects the expression of adhesive and co-stimulatory molecules in lymphocytes. The physiological function of cellular isoform of prion protein (PrPc) is little known. Evidences indicate a link between lymphocytes activation and PrPc expression on their surface; however, no direct effect of radiation on PrPc level in these cells was investigated. The objective of this study was to determinate the effect of low doses of ionizing radiation on the expression of PrPc on the surface peripheral blood lymphocytes in the women operating X-ray equipment. In 36 female workers and 30 persons of the control group the PrPc expression on CD3 (T lymphocytes), CD4 (T helper), CD8 (T cytotoxic) and CD19 (B lymphocytes), as well as the percentage of lymphocytes with PrPc on their surface, were tested. Subgroups with respect to age and length of employment were selected. A signifi cant increase was observed in PrPc expression on CD3 and CD4 with lowered PrPc level on CD8 and percentage of CD8 cells with PrPc in workers compared to control. The PrPc level did not show signifi cant changes in subgroups in relation to age (below and over 40 years old) both in the investigated and control groups, whereas a lower percentage of PrPc expressing CD19 cells showed in employed women below 40 years of age. A signifi cant decrease was found in PrPc expression on the surface of CD3, CD4 and CD8 cells in the subgroup employed for over 10 years than in the subgroup with less than 10 years of employment.
Źródło:
Annals of Agricultural and Environmental Medicine; 2007, 14, 2
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Helicobacter pylori increases expression of proapoptotic markers Fas and FasL on CD4 lymphocytes in children
Autorzy:
Kotłowska-Kmieć, Aldona
Bąkowska, Alicja
Szarszewski, Adam
Kamińska, Barbara
Łuczak, Grażyna
Radys, Wojciech
Landowski, Piotr
Brodzicki, Jacek
Korzon, Maria
Liberek, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1040535.pdf
Data publikacji:
2009
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
T cell
H. pylori
FasL
Fas
apoptosis
lymphocyte
Opis:
The pathomechanism of Helicobacter pylori action upon gastric mucosa and its role in the pathogenesis of gastritis have not been fully elucidated. The aim of this study was to evaluate the most prevalent lymphocyte subpopulations of the gastric mucosa in gastritis in children, as well as to evaluate the expression of Fas and Fas ligand receptors (FasL), periapoptotic markers of gastric mucosa lymphocytes before and after H. pylori eradication. Forty nine patients aged 6 to 17 years, investigated due to chronic abdominal pain, were studied. The obtained tissue samples were analysed by immunohistochemistry. Different lymphocyte subsets were quantified on the basis of surface antigen expression (CD3, CD4, CD8, CD20), secreted cytokines (IL-4, IL-6, IFNγ) and Fas and FasL proteins in the gastric mucosa. B and T helper lymphocytes were found to play a major role in the inflammatory infiltration in the gastric mucosa in children during H. pylori infection. Their expression was found to decrease after eradication. The enhanced expression of Fas receptor on lymphocytes before treatment and a decrease of this expression after eradication of H. pylori were shown. It was demonstrated that there is a correlation between CD4 and Fas receptor expression that may induce apoptosis of the helper lymphocytes in infected children.
Źródło:
Acta Biochimica Polonica; 2009, 56, 3; 433-438
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Immunoregulation of antigen presenting and secretory functions of monocytic cells by Helicobacter pylori antigens in relation to impairment of lymphocyte expansion
Autorzy:
Mnich, Eliza
Gajewski, Adrian
Rudnicka, Karolina
Gonciarz, Weronika
Stawerski, Paweł
Hinc, Krzysztof
Obuchowski, Michał
Chmiela, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/1038873.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
H. pylori
antigen presenting cells
lymphocyte expansion
Opis:
The role of Helicobacter pylori (H. pylori) antigens in driving a specific immune response against the bacteria causing gastroduodenal disorders is poorly understood. Using a guinea pig model mimicking the natural history of H. pylori infection, we evaluated the effectiveness of immature and mature macrophages in promoting the blastogenesis of splenocytes from H. pylori infected and uninfected animals, in response to H. pylori antigens: glycine acid extract (GE), cytotoxin associated gene A protein (CagA), urease A (UreA) and lipopolysaccharide (LPS). Lymphocyte expansion was assessed in 72 h cell cultures, containing: immature or mature macrophages derived from bone marrow monocytes, unstimulated or stimulated with H. pylori antigens for 2 h. The proliferation was expressed as a ratio of [3H]-thymidine incorporation into DNA of antigen-stimulated to unstimulated cells and the DNA damage was determined by DAPI cell staining. TGF-β and IFN-γ were assessed immunoenzymatically in cell culture supernatants. Lymphocytes of control and H. pylori-infected animals proliferated intensively in response to phytohaemagglutinin (PHA) and in co-cultures with immature or mature macrophages treated with CagA or UreA (significantly) and GE (slightly) exluding the cultures containing H. pylori or E. coli LPS. This lymphocyte growth inhibition was related to DNA damage of monocytic cells in response to H. pylori or E. coli LPS and secretion of regulatory TGF-β, but not proinflammatory IFN-γ. Impaired homeostasis of monocytic cell function related to DNA damage and TGF-β release, in response to H. pylori LPS may lead to the suppression of adaptive immune response against the bacteria and development of chronic infection.
Źródło:
Acta Biochimica Polonica; 2015, 62, 4; 641-650
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prognostic value of using neutrophil-lymphocyte ratio in patients with burn injury for the diagnosis of sepsis and bacteraemia
Autorzy:
Fuss, Julia
Voloboyeva, Anna
Poliovyj, Victor
Powiązania:
https://bibliotekanauki.pl/articles/1392898.pdf
Data publikacji:
2018
Wydawca:
Index Copernicus International
Tematy:
burns
sepsis
diagnostic
procalcitonin
neutrophil-lymphocyte ratio.
Opis:
Objective: Despite the progress in the treatment of burn injuries, the mortality rate among seriously ill patients still remains high nowadays. The main causes of fatal cases with extensive deep burns are generalized infectious complications, the major of which is sepsis. According to the authors, 25%–85% of those who died of burn injuries in later periods, died from sepsis. The frequency and severity of infectious complications in patients with burn injuries requires an accurate diagnosis of infection that will determine the tactics of therapeutic and surgical treatment of such patients (Di Lonardo A. et al., 1993). However, the clinical diagnosis of wound infection in patients with burn injuries is quite difficult. Materials and methods: The clinical material included 188 patients with burn injuries. The average age of those patients ranged from 20 to 59 years. Men - 98 (52.1%), women - 90 (47.9%). The survey was conducted from April 2014 to July 2016. Results: In our opinion, the strength of NLR (neutrophil-lymphocyte ratio) is the possibility of implementing this parameter simply by using already available biomarkers (neutrophil count and lymphocyte count). Therefore, this ratio is easy to integrate in clinical practice and cost effective. Conclusion: The application of NLR for the diagnosis of sepsis in patients with burn injuries is the option of choice, since its determination requires only a general blood test.
Źródło:
Polish Journal of Surgery; 2018, 90, 5; 13-16
0032-373X
2299-2847
Pojawia się w:
Polish Journal of Surgery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Selected parameters of local immunity and properties of fungi [between and within species] isolated from palatine tonsils
Autorzy:
Kurnatowski, P.
Jaskolowska, A.
Rozga, A.
Powiązania:
https://bibliotekanauki.pl/articles/837821.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
pathogenicity
Candida albicans
lymphocyte population
palatine tonsil
fungi
host
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cell-mediated response in nodular and ocular forms of human toxoplasmosis
Autorzy:
Dziubek, Z.
Zarnowska, H.
Gorski, A.
Basiak, W.
Kajfasz, P.
Bielawska, M.
Powiązania:
https://bibliotekanauki.pl/articles/838536.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
toxoplasmosis
cell-mediated response
T lymphocyte
man
humoral response
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Beta-2-microglobulin and neopterin in patients with giardiasis
Autorzy:
Czarnowski, D.
Miegoc, H.
Kalinowska, A.
Prokopowicz, D.
Powiązania:
https://bibliotekanauki.pl/articles/840868.pdf
Data publikacji:
1998
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
parasite
T lymphocyte
neopterin
Giardia
giardiasis
beta-2-microglobulin
Źródło:
Annals of Parasitology; 1998, 44, 3
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modified neutral comet assay for human lymphocytes
Autorzy:
Wojewódzka, M.
Grądzka, I.
Buraczewska, I.
Powiązania:
https://bibliotekanauki.pl/articles/147130.pdf
Data publikacji:
2002
Wydawca:
Instytut Chemii i Techniki Jądrowej
Tematy:
DNA double strand breaks
human lymphocyte
neutral comet assay
Opis:
Comet assay under neutral conditions allows the detection of DNA double-strand breaks, considered to be the biologically relevant radiation-induced lesion. In this report we describe modifications of the neutral comet method, which simplify and facilitate its use for estimation of DNA double strand breaks in human lymphocytes irradiated with doses of 60Co gamma-rays (from 10 to 100 Gy). The analysis carried out according to this protocol takes less time than those published so far. Also, the use of lysis at 50°C is avoided; this is important in view of the presence of heat-labile sites in the DNA of irradiated cells, recently reported by Rydberg [12]. The comets have well defined, sharp limits, are suitable for computer image analysis and chromatin of the control cells remains condensed.
Źródło:
Nukleonika; 2002, 47, 1; 1-5
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prognostic significance of C-reactive protein/albumin and neutrophil/lymphocyte ratios in patients with COVID-19
Autorzy:
Beyazal Polat, Hatice
Arpa, Medeni
Polat, Zehra
Beyazal, Mehmet
Beyazal Çeliker, Fatma
Ayaz, Teslime
Ertürk, Ayşe
Powiązania:
https://bibliotekanauki.pl/articles/40570858.pdf
Data publikacji:
2024-06-30
Wydawca:
Uniwersytet Rzeszowski. Wydawnictwo Uniwersytetu Rzeszowskiego
Tematy:
COVID-19
C-reactive protein/albumin
neutrophil/lymphocyte
Opis:
Introduction and aim. COVID-19 causes an uncontrolled and generalized inflammatory response of the host immune system. Early recognition of the disease and early prediction of the clinical course are of great importance. The aim of this study was to evaluate the predictive role of the C-reactive protein/albumin ratio (CAR) and the neutrophil/lymphocyte ratio (NLR) for mortality in patients hospitalized with the diagnosis of COVID-19. Material and methods. The patients, who were hospitalized for COVID-19 and whose CRP, albumin, neutrophil, and lymphocyte levels were documented within the first 24 hours after admission, were analyzed retrospectively. Patients were divided into survivors and non-survivors; the groups were compared. Univariate and multivariate Cox regression models were developed to evaluate the CAR and the NLR as risk factors for mortality in COVID-19 patients. Results. One hundred and thirty patients were included in this study. The mean age of the survivor group (n=114) was 60±16 and 52% were male. The mean age of the non-survivor group (n=16) was 75±13 and 56% were male. In the non-survivor group, the CAR detected at the time of admission to the hospital was significantly higher compared to patients in the survivor group (p=0.026). Conclusion. As a result, the CAR, the NLR and LDH are independent risk factor indicators of mortality in hospitalized patients.
Źródło:
European Journal of Clinical and Experimental Medicine; 2024, 22, 2; 327-333
2544-2406
2544-1361
Pojawia się w:
European Journal of Clinical and Experimental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 51

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