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Wyszukujesz frazę "Bee Venom" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Effects of Bee Venom on Activity and Expression of 15-Lipoxygenase-1 in Human HT29 Colon Cancer
Autorzy:
soukhtanloo, Mohammad
Zare, Maryam
Khayatzadeh, Jina
Sadegh Nia, Hamidreza
Mojarad, Majid
Baghbani, Fatemeh
Sargolzaei, Javad
Sadeghian, Hamid
Sisakhti, Mohsen
Powiązania:
https://bibliotekanauki.pl/articles/895438.pdf
Data publikacji:
2019-02-28
Wydawca:
Polskie Towarzystwo Farmaceutyczne
Tematy:
apoptosis
HPLC
15-lipoxygenase-1
Bee Venom
HT-29
Colerectal Cancer
Opis:
Colorectal cancer has a high incidence rate with significant mortality and morbidity. The 15-lipoxygenase-1 (15-LOX-1) is a crucial enzyme as well as a tumor suppressor, especially in colon cancer. Bee venom, by the induction of apoptosis, is a promising new anti-cancer agent. Thus, the effects of bee venom on the expression of 15-LOX-1 m-RNA and its activities in the HT-29 cell line have been investigated in the current study. Human HT-29 colon cancer cells were treated with increasing concentrations of bee venom (1.87-30 µg/mL), and cisplatin (5 µg/mL) as the positive control for 24- and 48-hours. Then, cell viability and apoptosis were measured using the MMT assay and flow cytometry, respectively. Enzyme activity and expression was assayed using the kinetic method and real-time PCR, respectively. The results showed that the main content of bee venom was melittin with a retention time of 60 minutes. The IC50 values of bee venom at 24- and 48-hours were 6.01 µg/mL and 4.44 µg/mL, respectively. Expression of 15-LOX-1 in cancer cells treated with bee venom increased (p < 0.0005), as well as the activity of the enzyme in the presence of bee venom (p < 0.01). The current study revealed the apoptotic and cytotoxic effects of bee venom against the human colon cancer HT-29 cell line that was not seen in fibroblast cells. Findings suggest that bee venom may have therapeutic effects against the HT-29 colon cancer cell through the induction of the15-LOX-1 pathway. However, further studies are needed in this regard.
Źródło:
Acta Poloniae Pharmaceutica - Drug Research; 2019, 76, 1; 75-82
0001-6837
2353-5288
Pojawia się w:
Acta Poloniae Pharmaceutica - Drug Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of hymenoptera venom immunotherapy on neutrophils, interleukin 8 (IL-8) and interleukin 17 (IL-17)
Autorzy:
Pałgan, Krzysztof
Żbikowska-Gotz, Magdalena
Zacniewski, Robert
Bartuzi, Zbigniew
Powiązania:
https://bibliotekanauki.pl/articles/2116499.pdf
Data publikacji:
2020-10-20
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
bee
IL-8
IL-17A
venom immunotherapy
wasp
neutrophils
Opis:
ObjectivesVenom immunotherapy (VIT) is an effective treatment method and is addressed to patients with a history of an anaphylactic reaction to Hymenoptera stings. However, the immunological mechanisms of protection have not been explained yet. The objective of this study was to analyze neutrophils, interleukin 8 (IL-8) and interleukin 17 (IL-17) before and after the initial phase of the immunotherapy.Material and MethodsOverall, 40 individuals, including 20 wasp venom sensitized and 20 bee venom sensitized patients, were included in the study. The patients had had a history of severe allergic reactions type III and IV according to Mueller’s classification. An ultra-rush VIT protocol was used in this study. The concentration of serum IL-8 and IL-17A was determined using the ELISA enzymatic method.ResultsThe authors demonstrated a significant rise in the IL-8 level after the immunotherapy, compared to baseline (14.9 vs. 24.7, p < 0.05). The rise in the neutrophils level was also noticeable but proved to be barely out of the range of statistical significance (4.3 vs. 5.0, p = 0.06). The shift in IL-17A was negligent and not statistically significant in the paired samples t-test (1.6 vs. 1.5, p = 0.34)ConclusionsVenom immunotherapy induces neutrophils and IL-8 activity after 2 days. After the desensitization, the level of IL-17A did not change.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2020, 33, 6; 811-817
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic aspect of venom allergy: association with HLA class I and class II antigens
Autorzy:
Karakis, G P
Sin, B.A.
Tutkak, H.
Kose, K.
Misirligil, Z.
Powiązania:
https://bibliotekanauki.pl/articles/49628.pdf
Data publikacji:
2010
Wydawca:
Instytut Medycyny Wsi
Tematy:
leucocyte
human leucocyte antigen class I
human leucocyte antigen class II
genetics
venom
allergy
sting allergy
insect
bee
wasp
Źródło:
Annals of Agricultural and Environmental Medicine; 2010, 17, 1; 119-123
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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