Preventive effects of black tea theaflavins against mouse type IV allergy

Author(s):  
Kyoji Yoshino ◽  
Katsuko Yamazaki ◽  
Mitsuaki Sano
2008 ◽  
Vol 54 (1) ◽  
pp. 76-80 ◽  
Author(s):  
Kyoji Yoshino ◽  
Youko Kondou ◽  
Kinuko Ishiyama ◽  
Tetsuro Ikekawa ◽  
Tsunetomo Matsuzawa ◽  
...  

2000 ◽  
Vol 48 (11) ◽  
pp. 5649-5653 ◽  
Author(s):  
Masazumi Suzuki ◽  
Kyoji Yoshino ◽  
Mari Maeda-Yamamoto ◽  
Toshio Miyase ◽  
Mitsuaki Sano

2019 ◽  
Vol 92 (1) ◽  
pp. 90-109 ◽  
Author(s):  
Ranvir Virdi ◽  
Boyd Grover ◽  
Kiruan Ghuman

ABSTRACT An investigation into the technological performance of a new nitrosamine safe thiuram disulfide, tetraisononylthiuramdisulfide (TINTD), in natural rubber was undertaken. Initially, TINTD was synthesized from di(3,5,5-trimethylhexyl)amine. It was then demonstrated to function as a sulfur donor, a primary accelerator, and as a secondary accelerator when combined with sulfenamides. These investigations found that the long-branched alkyl chain on the nitrogen of TINTD and of its vulcanization breakdown product zinc diisononyldithiocarbamate (ZDNC) makes both chemical species very soluble in the elastomer. This high solubility of TINTD and ZDNC in the rubber makes TINTD highly attractive for use in soluble efficient vulcanization systems. In addition, the nature of the long-branched alkyl chain means that the formation of carcinogenic N-nitrosamine is difficult, and if formed, it is toxicologically much less hazardous in terms of both acute toxicity and metabolic activity. Thus, concerns of accelerator toxicity, irritant dermatitis from thiuram and dithiocarbamate, and type IV allergy may be reduced or totally eliminated. The curing efficiency of various thiuram disulfides was also investigated as a function of alkyl chain length and the degree of chain branching. The cure performance was found to be determined by both chain length and chain branching.


The Lancet ◽  
2007 ◽  
Vol 369 (9577) ◽  
pp. 1926-1927
Author(s):  
A Sola-Gazagnes ◽  
E Larger

2004 ◽  
Vol 52 (15) ◽  
pp. 4660-4663 ◽  
Author(s):  
Kyoji Yoshino ◽  
Kenjiro Ogawa ◽  
Toshio Miyase ◽  
Mitsuaki Sano

2006 ◽  
Vol 88 (1) ◽  
pp. 103-105 ◽  
Author(s):  
N. Hjorth ◽  
D. S. Wilkinson

2002 ◽  
Vol 4 (1) ◽  
pp. 5 ◽  
Author(s):  
Mitsuaki Sano ◽  
Kyoji Yoshino ◽  
Tsunetomo Matsuzawa ◽  
Tetsuro Ikekawa

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