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Wyświetlanie 1-3 z 3
Tytuł:
Gamijeonssibaekchulsan regulates mast cell-mediated anaphylactic reaction
Autorzy:
Moon, Phil
Shin, Hye
Na, Ho
Jeong, Hyun
Kim, Su
Um, Jae
Park, Rae
Kim, Hyung
Hong, Seung
Powiązania:
https://bibliotekanauki.pl/articles/1041085.pdf
Data publikacji:
2007
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
histamine
passive cutaneous anaphylaxis
gamijeonssibaekchulsan
MOLT-4 cells
Opis:
Gamijeonssibaekchulsan (GJBS) is a typical Oriental medicine prescription which has been used in Korea for the treatment of allergic diseases and the development of physical strength. However, as yet there is no clear explanation of how GJBS affects the anaphylactic reaction and the immune function. In the present study murine models and MOLT-4 cells, a T cell line, were used to investigate these effects. Compound 48/80-induced systemic anaphylactic shock and ear swelling response were firstly analyzed. We also assayed histamine release and passive cutaneous anaphylaxis (PCA) in mice and cytokine productions in MOLT-4 cells. GJBS significantly inhibits compound 48/80-induced systemic anaphylactic shock and ear swelling response. GJBS also inhibits histamine release from rat peritoneal mast cells induced by compound 48/80. PCA activated by anti-dinitrophenyl immunoglobulin E is attenuated by GJBS. However, GJBS dose not affect the production of interferon-γ, interleukin (IL)-2, and IL-4 in MOLT-4 cells. These results indicate that GJBS has a potential regulatory effect on allergic reactions that are mediated by mast cells.
Źródło:
Acta Biochimica Polonica; 2007, 54, 2; 349-355
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ganoderma lucidum extract stimulates glucose uptake in L6 rat skeletal muscle cells
Autorzy:
Jung, Kyung
Ha, Eunyoung
Kim, Mi-Ja
Uhm, Yoon
Kim, Hye
Hong, Seung-Jae
Chung, Joo-Ho
Yim, Sung-Vin
Powiązania:
https://bibliotekanauki.pl/articles/1041224.pdf
Data publikacji:
2006
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
Ganoderma lucidum extract
skeletal muscle
phosphatidylinositol 3-kinase
AMP-activated protein kinase
glucose uptake
Opis:
The effect of Ganoderma lucidum extract on glucose uptake was studied in L6 rat skeletal muscle cells. G. lucidum extract increased glucose uptake about 2-fold compared to control. The extract stimulated the activity of phosphatidylinositol (PI) 3-kinase which is a major regulatory molecule in the glucose uptake pathway. About 7-fold increased activity of a PI 3-kinase was observed after treatment with G. lucidum extract, whereas PI 3-kinase inhibitor, LY294002, blocked the G. lucidum extract-stimulated PI 3-kinase activity in L6 skeletal muscle cells. Protein kinase B, a downstream mediator of PI 3-kinase, was also activated by G. lucidum extract. We then assessed the activity of AMP-activated protein kinase (AMPK), another regulatory molecule in the glucose uptake pathway. G. lucidum extract increased the phosphorylation level of both AMPK α1 and α2. Activity of p38 MAPK, a downstream mediator of AMPK, was also increased by G. lucidum extract. Taken together, these results suggest that G. lucidum extract may stimulate glucose uptake, through both PI 3-kinase and AMPK in L6 skeletal muscle cells thereby contributing to glucose homeostasis.
Źródło:
Acta Biochimica Polonica; 2006, 53, 3; 597-601
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electrothermal Properties and RF Transmittance of Spray-coated CNT Thin Film for Radome De-icing Application
Autorzy:
Jung, Jun Hyuk
Hong, Jiwon
Kim, Youngryeul
Yong, Seok-Min
Park, Jinwoo
Lee, Seung Jun
Powiązania:
https://bibliotekanauki.pl/articles/351163.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
De-icing
CNT thin film
spray coating
electrothermal property
RF transmittance
Opis:
Ice formed on radome surfaces causes communication disruption due to radio-frequency interference (RFI), which reveals the importance of de-icing systems for radomes. As a radome de-icing application, in this work, carbon nanotube (CNT) thin films were fabricated using a spray-coating method, and influence of process parameters on RF transmittance and electrothermal propertieswas investigated. With the increase of spraying time, sheet resistance of the fabricated film decreases, which results in a decrease of the RF transmittance and improvement of the heating performance. Also, the de-icing capability of the fabricated CNT film was evaluated at –20°C, and efficient removal of ice under cold conditions was demonstrated.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 3; 1011-1014
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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