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도시와 농촌 고등학교학생들의 정신건강에 관한 연구
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Development for Fishing Gear and Method of the Non-Float Midwater Pair Trawl Net
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Transient thermal response of a highly porous ventilated brake disc
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Pyrolysis of cohesive meat and bone meal in a bubbling fluidized bed with an intermittent solid slug feeder
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죽은 말이 있었다 외 1편
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Fulminant amoebic colitis mimicking intestinal vasculitis in a patient with systemic lupus erythematosus.
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- 저자 : He Shaoyu (검색결과 2 건)
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Wang Leiyu,Dong Kun,He Shaoyu,Li Jilian,Jie Wu,Huang Jiaxing 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.1
Among the antimicrobial peptides, abaecin is rich in proline content and plays a vital role in insect innate im mune defense. Here, the full-length gene of abaecin from the bumblebee Bombus lantschouensis was cloned, and its expression profiles for different tissues, developmental stages and reproductive statuses were analyzed by RTqPCR. Meanwhile, the responses of abaecin to a bacterium (Escherichia coli) and a fungus (Beauveria bassiana) were tested. The full length of abaecin cDNA was 470 bp, and the open reading frame (ORF) was 258 bp, encoding a polypeptide of 85 amino acids. The abaecin gene consists of three exons and two introns. Phylogenetic analysis showed that Bombus ignitus was the closest species to B. lantschouensis base on putative Abaecin protein sequence. Expression analysis showed that abaecin was expressed broadly in different tissues, with the highest expression in fat bodies and extremely low expression in antennae. Regarding developmental stage, low expression of abacein was detected in eggs and larvae, and high expression was detected in pupal stages. The highest expression was observed at the Pw pupal stage (pupae with an unpigmented body cuticle and white eyes), and the expression then decreased from the Pp (pupae with pink eyes) to the Pdd (dark-eye pupae with a dark-pigmented cuticle) stages. In addition, the expression of abaecin was higher in egg-laying than in non-egglaying female bumblebees. Both E. coli and B. bassiana infections induced the expression of abaecin. Our results indicated that the abaecin gene plays important roles in the development, reproduction and immune responses of bumblebees. During the artificial rearing of bumblebees, a good environment should be created to avoid infection with bacteria or fungi.
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Chen Guoliang,Li Xianlong,Zhu Hongzhang,Wu Huachuan,He Dacheng,Shi Liangyu,Wei Fuxin,Liu Xizhe,Chen Ningning,Liu Shaoyu 생화학분자생물학회 2022 Experimental and molecular medicine Vol.54 No.-
The poor survival and low efficiency of neuronal differentiation limits the therapeutic effects of transplanted neural stem cells in the treatment of spinal cord injury. Neurofibromatosis-1 (NF-1) is a tumor suppressor gene that restricts the rapid and abnormal growth and differentiation of neural cells. In the present study, lentiviral vectors were used to knock out NF-1, Ricotr (the core member of mTORC2) or NF-1+Ricotr in neural stem cells in vitro, and the NF-1, Ricotr or NF-1+Ricotr knockout neural stem cells were transplanted at the lesion site in a rat model of spinal cord injury (SCI). We first demonstrated that targeted knockout of NF-1 had an antiapoptotic effect and improved neuronal differentiation by enhancing the mTORC2/Rictor pathway of neural stem cells in vitro. Subsequently, transplanting NF-1 knockout neural stem cells into the injured site sufficiently promoted the tissue repair and functional recovery of rats with spinal cord injury by enhancing the survival and neuronal differentiation of grafted neural stem cells. Collectively, these findings reveal a prominent role of NF-1 in neural stem cell biology, which is an invaluable step forward in enhancing the benefit of neural stem cell-mediated regenerative cell therapy for spinal cord injury and identifies the transplantation of NF-1 knockout neural stem cells as a promising strategy for spinal cord injury.
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