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MLVA Genotyping of Brucella abortus isolated from cattle in Korea
Jin-Ju Lee(Jin-Ju Lee),Eun-Ji Yum(Eun-Ji Yum),Eun-Ji Park(Eun-Ji Park),Min-Kyeong Kim(Min-Kyeong Kim),Min-Hoe Lee(Min-Hoe Lee),So-Ra Sung(So-Ra Sung),Hee-Soo Lee(Hee-Soo Lee),Bang-Hun Hyun(Bang-Hun Hy 한국예방수의학회 2019 한국예방수의학회 학술대회자료집 Vol.2018 No.-
Behaviour of bentazon in the presence of rice plants in a lysimeter
Lee, Jae Koo,Fu¨hr, F.,Kyung, Kee Sung,Oh, Kyeong Seok 한국농화학회 1990 Applied Biological Chemistry (Appl Biol Chem) Vol.33 No.2
In order to simulate the rice paddy fields, two lysimeters of 0.25㎡ surface area were manufactured with stainless steel of 8mm thickness. When the herbicide ^(14)C-bentazon was applied to the surface by the conventional method for the control of weeds of rice plants, the leachates from the lysimeters contained 1.14%(lysimeter 1) -6.29%(lysimeter 2)of the originally applied radioactivities up to the 37th week after the application. The appromate amounts of COz evolved from the surfaces of the lysimeters in the presenece of rice plants during the experimental period of 20 weeks were about 1.33%(lysimeter 1) - 3.68%(lysimeter 2). No volatilization of bentazon from the soil surfaces was observed. The C-radioactivities detect in straw, ear without rice grain, chaff, and hulled rice grain after harvest corresponded to 2.5-3.2, 0.1, 0.05, and 0.03ppm, respectively, in two lysimeters. Partition of the ^(14)C-radioactivity pre sent in the leachates revealed that 96.1-98.95% of it remained in the organic phase(ethyl acetae), indicating that the leachates contain very small amounts of polar compounds resulting from the degradation of bentazon. In the time-course of the absrorption and translocation, the maximum amount of ^(14)C-radioactivity in the shoots, amounting to 4.08-7.57ppm, appeared 21 days agter the application. The degradation of bentazon in soil increased with soil temperature. The degradation products of small amounts detected in the leachates were identified as 6-0H and 8-0H bentazon by TLC and autoradiography.
Lee, Hyunkyoung,Park, Chanhee,Cho, Ik-Hyun,Kim, Hyun Yeong,Jo, Eun-Kyeong,Lee, Soojin,Kho, Hong-Seop,Choi, Se-Young,Bae Oh, Seog,Park, Kyungpyo,Kim, Joong Soo,Lee, Sung Joong Wiley Subscription Services, Inc., A Wiley Company 2007 Glia Vol.55 No.7
<P>Inflammation in the peripheral nervous system (PNS) is one of the characteristics of virus-induced peripheral neuropathy. In this inflammatory response, Schwann cells are actively involved. Previously, toll-like receptor 3 (TLR3) was reported as a receptor for double-stranded RNA (dsRNA) that induces antiviral and inflammatory responses in cells of the innate immune system. In this study, we investigated the expression and putative role of TLR3 in Schwann cells. TLR3 was constitutively expressed in Schwann cells. Stimulation with polyinosinic–polycytidylic acid, a synthetic dsRNA analogue, induced the expression of inducible nitric oxide synthase (iNOS) gene in Schwann cells. Studies on the intracellular signal transduction pathways using iSC, an immortalized Schwann cell line, revealed that dsRNA induces the activation of NF-κB, p38, and c-Jun N-terminal kinase (JNK). The activation of NF-κB, p38, JNK, and dsRNA-dependent protein kinase is required for dsRNA-mediated iNOS gene expression. However, the activation of PI3 kinase and GSK-3β inhibited iNOS gene induction, a process mediated by their inhibitory effects on NF-κB and p38 activation. dsRNA-induced NO production caused neuronal cell death in cultured dorsal root ganglion. Finally, the introduction of dsRNA into the rat sciatic nerve induced iNOS gene expression and peripheral nerve demyelination in vivo. Taken together, these data suggest that viral RNA may induce inflammatory Schwann cell activation via TLR3 and peripheral nerve damage in the PNS. © 2007 Wiley-Liss, Inc.</P>