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침구경락 음양론의 새로운 발전, 기능적 뇌 척주요법 FCST
인창식 ( Chang Shik Yin ),고형균 ( Hyeong Gyun Koh ),이영진 ( Young Jin Lee ),전세일 ( Sae Il Chun ),이영준 ( Young Jun Lee ) 대한경락경혈학회 2005 Korean Journal of Acupuncture Vol.22 No.4
Objectives: Functional Cerebrospinal Therapy (FCST) is a new physiologic therapeutics developed in Korea as a meridian yinyang balance approach. The theory of yinyang balance has been at the core of health enhancement approach of meridian and acupuncture medicine ever since its start. Methods: Introductory overview of FCST is presented in relation with meridian yinynag balance theory. Results: As the temporomandibular joint (TMJ) and related tissues have direct interconnection with brainstem proprioceptive or motor systems and the face is where all the meridians converge, FCST applies a fine adjustment of the posture of TMJ as a treatment tool for neurologic conditions or meridian imbalances. Conclusions: Highly sophisticated diagnostic and therapeutic techniques to adjust various subset aspects of yinyang balance are developed within FCST, which is supposed to be one of major contributions to natural healing.
Clerodane furanoditerpenoids from the stems of Tinospora sinensis
Jun-Sheng Zhang,De-Feng Xu,Yin-Yin Wang,Ren-Fen Ma,Hua Zhang 대한약학회 2022 Archives of Pharmacal Research Vol.45 No.5
One new clerodane-type furanoditerpenoidtinosinoid A ( 1 ) and nine new nor-clerodane analogs tinosinoids B–J ( 2 − 10 ) have been isolated from the stems ofTinospora sinensis . The structures of the new compoundswith absolute confi gurations have been elucidated by spectroscopicmeans, including MS, NMR and ECD techniques,as well as chemical correlation. Compound 1 is a rare sulfurcontainingclerodane diterpenoid incorporating a 2-mercaptoethanolunit via a thioether bond, while compounds 4 / 5and 9 represent two pairs of unusual equilibrium regioisomersthrough an interesting intramolecular transesterifi cation. Our bioassays established that 1 and 8 displayed moderateantiproliferative eff ects against two human tumor celllines, and 9 and 10 showed signifi cant α -glucosidase inhibitoryactivities. A kinetics study revealed that compound 10was a noncompetitive α -glucosidase inhibitor, and its possiblebinding mode to the enzyme was further probed bymolecular docking experiments.
DEAD-box RNA helicase DDX23 modulates glioma malignancy via elevating miR-21 biogenesis
Yin, Jinlong,Park, Gunwoo,Lee, Jeong Eun,Choi, Eun Young,Park, Ju Young,Kim, Tae-Hoon,Park, Nayun,Jin, Xiong,Jung, Ji-Eun,Shin, Daye,Hong, Jun Hee,Kim, Hyunggee,Yoo, Heon,Lee, Seung-Hoon,Kim, Youn-Jae Oxford University Press 2015 Brain Vol.138 No.9
<P>Upregulation of microRNA-21 (miR-21) is strongly associated with glioma malignancy, but the regulatory mechanism that governs miR-21 biogenesis is unclear. Yin <I>et al.</I> demonstrate that the DEAD-box RNA helicase DDX23 promotes miR-21 biogenesis at the post-transcriptional level in glioma cells, and that DDX23 inhibition reduces glioma growth in mouse xenografts.</P><P> [Figure] </P><P>Upregulation of microRNA-21 (miR-21) is known to be strongly associated with the proliferation, invasion, and radio-resistance of glioma cells. However, the regulatory mechanism that governs the biogenesis of miR-21 in glioma is still unclear. Here, we demonstrate that the DEAD-box RNA helicase, DDX23, promotes miR-21 biogenesis at the post-transcriptional level. The expression of DDX23 was enhanced in glioma tissues compared to normal brain, and expression level of DDX23 was highly associated with poor survival of glioma patients. Specific knockdown of DDX23 expression suppressed glioma cell proliferation and invasion <I>in vitro</I> and <I>in vivo</I>, which is similar to the function of miR-21. We found that DDX23 increased the level of miR-21 by promoting primary-to-precursor processing of miR-21 through an interaction with the Drosha microprocessor. Mutagenesis experiments critically demonstrated that the helicase activity of DDX23 was essential for the processing (cropping) of miR-21, and we further found that ivermectin, a RNA helicase inhibitor, decreased miR-21 levels by potentially inhibiting DDX23 activity and blocked invasion and cell proliferation. Moreover, treatment of ivermectin decreased glioma growth in mouse xenografts. Taken together, these results suggest that DDX23 plays an essential role in glioma progression, and might thus be a potential novel target for the therapeutic treatment of glioma.</P>
Yin, Shang-Jun,Si, Yue-Xiu,Chen, Yong-Fu,Qian, Guo-Ying,L?, Zhi-Rong,Oh, Sangho,Lee, Jinhyuk,Lee, Sanghyuk,Yang, Jun-Mo,Lee, Dong-Youn,Park, Yong-Doo Kluwer Academic/Plenum 2011 The Protein Journal Vol.30 No.4
<P>Tyrosinase inhibition studies are needed due to the agricultural and medicinal applications. For probing effective inhibitors of tyrosinase, a combination of computational prediction and enzymatic assay via kinetics were important. We predicted the 3D structure of tyrosinase from Agaricus bisporus, used a docking algorithm to simulate binding between tyrosinase and terephthalic acid (TPA) and studied the reversible inhibition of tyrosinase by TPA. Simulation was successful (binding energies for Autodock4 = -1.54 and Fred2.0 = -3.19 kcal/mol), suggesting that TPA interacts with histidine residues that are known to bind with copper ions at the active site. TPA inhibited tyrosinase in a mixed-type manner with a K ( i ) = 11.01 2.12 mM. Measurements of intrinsic and ANS-binding fluorescences showed that TPA induced no changes in tertiary structure. The present study suggested that the strategy of predicting tyrosinase inhibition based on hydroxyl groups and orientation may prove useful for screening of potential tyrosinase inhibitors.</P>