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Regression of hepatocellular carcinoma during vitamin K administration

World Journal of Gastroenterology 2005年第42期11卷 6722-6724页

作者： Kazuhiro Nouso Shuji Uematsu Kunihiro Shiraga Ryoichi Okamoto Ryo Harada shoko takayama Wakako Kawai Shigeru Kimura Toru Ueki Nobuaki Okano Masahiro Nakagawa Motowo Mizuno Yasuyuki Araki Yasushi Shiratori Department of Internal Medicine Hiroshima City Hospital Hiroshima 730-8518 Japan Department of Medicine and Medical Science Okayama University Graduate School of Medicine and Dentistry Okayama 700-8558 Japan

An 85-year-old man with HCV infection and diabetes mellitus was diagnosed as having hepatocellular carcinoma （HCC, 13 cm in diameter） based on high serum alpha-fetoprotein （AFP）, AFP-L3, and des-y-carboxy prothrombin levels as well as typical enhancement pattern on contrast-enhanced CT. The patient did not receive any interventional treatments because of advanced age and the advanced stage of HCC. He chose to take vitamin K, which was reported to suppress the growth of HCC in vitro. Three months after starting vitamin K, all three tumor markers were normalized and HCC was markedly regressed, showing no enhancement in the early arterial phase on CT. Here we present the report describing the regression of HCC during the administration of vitamin K.

关键词： Hepatocellular carcinoma Vitamin K Regression

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A Series of Soluble Planar Oligorylenes up to Hexarylene

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Chinese Journal of Chemistry 2023年第9期41卷 1023-1027页

作者： Ryuichi Fujita shoko Yoshida Haruka Kano Kyohei Matsuo Hironobu Hayashi Hiroko Yamada Naoki Aratani Division of Materials Science Nara Institute of Science and Technology(NAIST)8916-5 Takayama-choIkoma 630-0192Japan

Preparation of large rylenes often needs the use of solubilizing groups along the rylene backbone,which results in the distortion of the skeleton and thus broadening of the absorption *** this work,we successfully synthesized 2,5,8,16,19,22-hexakis[2,6-bis(tri-fluoromethyl)phenyl]hexarylene(H)by using an oxidative fusion reaction of perylene trimer in 5%*** product is soluble in common organic solvents and could be purified with column ***-crystal X-ray diffraction analysis revealed that the hexarylene core is not disturbed by the substituents very much and is almost *** longest absorption of H exhibits a sharp peak at 831 nm and an on-set at 875 nm in toluene with a small full-width-at-half-maximum(FWHM)of 660 cm^(-1).The molar extinction coefficient is as large as 131,000 M^(-1)cm^(-1).The substituents could not perturb the electronic properties of the hexarylene because aryl groups are perpendicular to the hexarylene core and the carbon atoms at 2,5,16,19-positions have negligible coeffi-cients on its HOMO and LUMO,estimated by theoretical *** a result,the hexarylene having less absorption at the visible light region was stable enough in solution under the LED room light for more than 1 *** strategy gives a useful guideline to establish the near-infrared materials that exhibit stability under ambient conditions.

关键词： Oligorylenes Undistorted skeleton Near infrared absorption Crystal structure Effective conjugation length

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