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Termisoflavones A–C, Isoflavonoid Glycosides from Termite-Associated <i>Streptomyces</i> sp. RB1
Kang, Hee Rae,Lee, Dahae,Benndorf, René,Jung, Won Hee,Beemelmanns, Christine,Kang, Ki Sung,Kim, Ki Hyun American Chemical Society and American Society of 2016 Journal of natural products Vol.79 No.12
<P>Three new isoflavonoid glycosides, termisoflavones A-C (1-3), and eight isoflavonoids (4-11) were isolated from termite-associated Streptomyces sp. RB1 recovered from the cuticle of the South African termite, Macrotermes natalensis. The structures of new compounds were determined by spectroscopic methods including ID and 2D NMR and HR-MS analysis, as well as comparison of their NMR data with those of related isoflavonoid glycoside derivatives. The absolute configurations of the sugar moieties were clarified by chemical reactions. None of the isolates (1-11) displayed antifungal or antimicrobial activities (MICs > 100 mu g/mL), whereas compounds 6 and 11 ameliorated cisplatin-induced kidney cell damage to 80% of the control value at a cisplatin dose of 25 mu M.</P>
Homoepitaxial ZnO Thin Films Fabricated by Using Pulsed-Laser Deposition
Holger von Wenckstern,Matthias Brandt,Heidemarie Schmidt,Christian Hanisch,Gabriele Benndorf,Holger Hochmuth,Michael Lorenz,Marius Grundmann 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.5
ZnO thin films were deposited homoepitaxially by using pulsed-laser deposition on ZnO wafers grown by using the hydrothermal method. The dominant shallow donor level in the nominally undoped thin films is AlZn, as suggested by thermal admittance spectroscopy and low temperature photoluminescence measurements. The homoepitaxial ZnO:P thin films are n-conducting in the as-grown state, which facilitates investigations by Hall effect measurements. The Hall mobility of such ZnO:P thin lms is higher than that of heteroepitaxial ZnO thin lms and its temperature dependence is similar to that of ZnO single crystals grown by seeded chemical vapor transport.
Vertebro-Vertebral Fistula Occlusion Using a Woven EndoBridgeTM-Device
Dahl Rasmus Holmboe,Ghasemi-Rad Mohammad,Eskesen Vagn,Frevert Susanne Christiansen,Sølling Christine,Benndorf Goetz 대한신경중재치료의학회 2023 Neurointervention Vol.18 No.3
Vertebro-vertebral fistulas (VVFs) are vascular lesions that may develop after trauma or spontaneously in association with connective tissue disorders. We present a rare case of a post-traumatic VVF in a young patient presenting with a painless swelling and a bruit in her left upper neck. Digital subtraction angiography showed an arteriovenous fistula between the left vertebral artery (VA) and the vertebral venous plexus with significant steal phenomenon. Endovascular therapy was performed using a Woven EndoBridge<sup>TM</sup> (WEB)-device combined with coils that allowed preservation of the VA. The patient fully recovered from her symptoms and follow-up imaging showed stable occlusion. In conclusion, VVFs can be effectively treated using intrasaccular flow diverters such as the WEB-device, allowing for complete and stable occlusion while preserving the parent artery.