2017

• J. Pahila, H. Kaneda, R. Nagasaka, T. Koyama, T. Ohshima, Effects of ergothioneine-rich mushroom extracts on lipid oxidation and discoloration in salmon muscle stored at low temperatures, Food Chemistry, 233, 273-281, 2017.

2014

• S. Yamada, T. Koyama, H. Noguchi, Y. Ueda, R. Kitsuyama, H. Shimizu, A. Tanimoto, K. Wang, A. Nawata, T. Nakayama, Y. Sasaguri, T. Satoh, Marine Hydroquinone zonarol prevents inflammation and apoptosis in dextran sulfate sodium-induced mice ulcerative colitis, PLOS ONE, 10.1371/journal.pone.0113509, 2014.

2012

• M. Shirosaki, T. Koyama, K. Yazawa. Suppressive effect of peach leaf extract on glucose absorption from the small intestine of mice. Biosci. Biotechnol. Biochem. 76(1), 89-94, 2012.
• T. Koyama, M. Miyata, T. Nishimura, K. Yazawa. Suppressive effects by leaves of the Dypsis lutescens palm on fat accumulation in 3T3-L1 cells and fat absorption in mice. Biosci. Biotechnol. Biochem. 76(1), 189-192, 2012.

2011

• K. Yazawa, K. Suga, A. Honma, M. Shirosaki, T. Koyama, Anti-inflammatory effects of seeds of the tropical fruit camu-camu (Myrciaria dubia). J. Nutr. Sci. Vitamino. 57(1), 104-107, 2011.
• A. Honma, T. Koyama, K. Yazawa, Anti-hyperglycemic effects of the Japanese red maple Acer pycnanthum and its constituents the ginnalins B and C. J. Enzyme Inhibit. Med. Chem. 26(2), 176-180, 2011.
• A. Ogawa, Y. Miyamae, A.i Honma, T. Koyama, K. Yazawa, H. Shigemori, Pycnalin, a new α-glucosidase inhibitor from Acer pycnanthum. Chem. Pharm. Bull. 59(5), 672-675, 2011.
• J. Wu, K. Fushimi, S. Tokuyama, M. Ohno, T. Miwa, T. Koyama, K. Yazawa, K. Nagai, T. Matsumoto, H. Hirai, H. Kawagishi, Functional-Food constituents in the fruiting bodies of Stropharia rugosoannulata. Biosci. Biotechnol. Biochem. 75(8), 1631-1634, 2011.
• J. Wu, J.H. Choi, M. Yoshida, H. Hirai, E. Harada, K. Masuda, T. Koyama, K. Yazawa, K. Noguchi, K. Nagasawa, H. Kawagishi, Osteoclast-forming suppressing compounds, gargalols A, B and C, from the edible mushroom Grifola gargal. Tetrahedron, 67(35), 6576-6581, 2011.

2010

• N. Maru, O. Ohno, T. Koyama, K. Yamada, D. Uemura, Papillamide, a novel fatty acid amide from the red alga Laurencia papillosa. Chem. Lett. 39, 366-367, 2010.
• M. Miyata, T. Koyama, K. Yazawa, Water extract of Houttuynia cordata Thunb. leaves exerts anti-obesity effects by inhibiting fatty acid and glycerol absorption. J. Nutr. Sci. Vitaminol. 56, 150-156, 2010.
• J.H. Choi, N. Abe, S. Kodani, K. Masuda, T. Koyama, K. Yazawa, M. Takahashi, H. Kawagishi, Osteoclast-forming suppressing compounds from the medicinal mushuroom Agrocybe chaxingu Huang (Agaricomycetideae). Int. J. Med. Mushrooms, 12, 151-155, 2010.
• K. Washida, M. Miyata, T. Koyama, K. Yazawa, K. Nomoto, Suppressive effect of Yamato-mana (Brassica rapa L. oleifera group) constituent 3-butenyl glucosinolate (gluconapin) on postprandial hypertriglyceridemia in mice. Biosci. Biotech. Biochem. 74, 1286-1289, 2010.
• K. Masuda, T. Kawaguchi, T. Koyama, T. Nishimura, H. Kawagishi, K. Yazawa, Osteoclast-forming suppressive compounds from Anoectochilus formosanus. Japanese Jap. J. complement. altern. med. 7, 121-124, 2010.
• A. Honma, T. Koyama, K. Yazawa, Anti-hyperglycemic effects of sugar maple Acer saccharum and its constituent acertannin, Food Chem. 123, 390–394, 2010.
• N. Maru, T. Koyama, O. Ohno, K. Yamada, D. Uemura, Sunabedine, a novel toxic bromotyrosine-derivative alkaloid from Okinawan sponge, order Verongida. Heterocycles, 82, 371-375, 2010.
• A. Honma, T. Koyama, K. Yazawa, Anti-hyperglycemic effects of Japanese maple Acer amoenum leaf extract and its constituent corilagin. J. Wood Sci. 56, 507-512, 2010.

2009

• J.H. Choi, A. Ogawa, N. Abe, K. Masuda, T. Koyama, K. Yazawa, H. Kawagishi, Chaxines B, C, D, and E from the edible mushroom Agrocybe chaxingu. Tetrahedron, 65, 9850–9853, 2009.
• M. Ikeuchi, T. Koyama, S. Takei, T. Kino, K. Yazawa, Effects of benzylglucosinolate on endurance capacity in mice, J. Health Sci. 55, 178-182, 2009.
• K. Akamine, T. Koyama, K. Yazawa, Banana peel extract suppresses prostate gland enlargement in testosterone-treated mice, Biosci. Biotech. Biochem. 73, 1911-1914, 2009.
• M. Miyata, T. Koyama, T. Kamitani, T. Toda, K. Yazawa, Anti-obesity effect on rodents of the traditional Japanese food, Tororo-kombu, shaved Laminaria. Biosci. Biotech. Biochem. 73, 2326-2328, 2009.

2008

• K. Masuda, M. Ikeuchi, T. Koyama, K. Yamaguchi, J.T, Woo, T. Nishimura, K. Yazawa, Suppressive effects of Anoectochilus formosanus extract on osteoclast formation in vitro and bone resorption in vivo. J. Bone Mineral Metab. 26, 123-129, 2008.
• M. Shirosaki, T. Koyama, K. Yazawa, Anti-hyperglycemic activity of kiwifruit leaf (Actinidia deliciosa) in mice. Biosci. Biotechnol. Biochem. 72, 1099-1102, 2008.
• M. Nishihara, M. Kamata, T. Koyama, K. Yazawa, New phospholipase A1-producing bacteria from a marine fish. Mar. Biotechnol. 10, 382-387, 2008.
• O. Ohno, M. Ye, T. Koyama, K. Yazawa, E. Mura, H. Matsumoto, T. Ichino, K. Yamada, K. Nakamura, T. Ohno, K. Yamaguchi, J. Ishida, A. Fukamizdu, D. Uemura, Inhibitory effects of benzyl benzoate and its derivatives on angiotensin II-induced hypertension. Bioorg. Med. Chem. 16, 7843-7852, 2008.

2007

• M. Kitamura, T. Koyama, Y. Nakano, D. Uemura, Characterization of a natural inducer of coral larval metamorphosis. J. Exp. Mar. Biol. Ecol. 340, 96-102, 2007.
• M. Ikeuchi, T. Koyama, J. Takahashi, K. Yazawa, Effects of astaxanthin in obese mice fed a high-fat diet. Biosci. Biotechnol. Biochem. 71, 893-899, 2007.
• M. Kita, M.C. Roy, E.R.O. Siwu, I. Noma, T. Takiguchi, M. Itoh, K. Yamada, T. Koyama, T. Iwashita, D. Uemura, Durinskiol A, a long carbon-chain polyol compound from the symbiotic dinoflagellate Durinskia sp. Tetrahedron Lett. 48, 3423-3427,2007.
• M. Kita, M.C. Roy, E.R.O. Siwu, I. Noma, T. Takiguchi, K. Yamada, T. Koyama, T. Iwashita, A. Wakamiya, D. Uemura, Relative stereochemistries of the ether rings and sugar moieties in Durinskiol A. Tetrahedron Lett. 48, 3429-3432, 2007.
• M. Kita, N. Ohishi, K. Konishi, M. Kondo, T. Koyama, M. Kitamura, K. Yamada, D. Uemura, Symbiodinolide, a novel polyol macrolide that activates N-type Ca2+ channel from the symbiotic dinoflagellate Symbiodinium sp. Tetrahedron, 63, 6241-6251, 2007.

2006

• K. Washida, T. Koyama, K. Yamada, M. Kita, D. Uemura, Karatungiols A and B, two novel antimicrobial polyol compounds, from the symbiotic marine dinoflagellate Amphidinium sp. Tetrahedron Lett. 47, 2521-2525, 2006.
• T. Koyama, R. Chounan, D. Uemura, K. Yamaguchi, K. Yazawa, Hepatoprotective effect of a hot-water extract from the edible thorny oyster Spondylus varius on carbon tetrachloride-induced liver injury in mice. Biosci. Biotechnol. Biochem. 70, 729-731, 2006.
• M. Ikeuchi, K. Yamaguchi, T. Koyama, Y. Sono, K. Yazawa, Effects of fenugreek seeds (Trigonella foenum greaecum) extract on endurance capacity in mice. J. Nutr. Sci. Vitaminol. 52, 287-292, 2006.
• M. Ikeuchi, T. Koyama, J. Takahashi, K. Yazawa, Effects of astaxanthin supplementation on exercise-induced fatigue in mice. Biol. Pharm. Bull. 29, 2106-2110, 2006.

2005

• Y. Aniya, T. Koyama, C. Miyagi, M. Miyahira, C. Inomata, S. Kinoshita, T. Ichiba, Free radical scavenging and hepatoprotective actions of the medicinal herb, Crassocephalum crepidioides from the Okinawa Islands. Biol. Pharm. Bull. 28, 19-23, 2005.
• K. Noguchi, M. Sakanashi, T. Matsuzaki, J. Nakasone, M. Sakanashi, T. Koyama, N. Hamadate, M. Sakanashi, Cardiovascular effects and lethality of venom from nematosysts of the box-jellyfish Chiropsalmus quadrigatus (Habu-kurage) in anaesthetized rats. Toxicon, 45, 519-526, 2005.
• M. Kita, N. Ohishi, K. Washida, M. Kondo, K. Yamada, T. Koyama, D. Uemura, Symbioimine and neosymbioimine, amphoteric iminium metabolites from the symbiotic marine dinoflagellate Symbiodinium sp. Bioorg. Med. Chem. 13, 5253-5258, 2005.
• M. Kitamura, T. Koyama, Y. Nakano, D. Uemura, Corallinafuran and corallinaether, novel toxic compounds from crustose coralline red algae. Chem. Lett. 34, 1272-1273, 2005.
• M. Kita, M. Kitamura, T. Koyama, T. Teruya, H. Matsumoto, Y. Nakano, D. Uemura, Feeding attractants for the muricid gastropod Drupella cornus, a coral predator. Tetrahedron Lett. 46, 8583-8585, 2005.

2004

• T. Teruya, S. Nakagawa, T. Koyama, H. Arimoto, M. Kita, D. Uemura, Nakiterpiosin and nakiterpiosinone, novel cytotoxic C-nor-D-homosteroid from the Okinawan Sponge Terpios hoshinota. Tetrahedron, 60, 6989-6993, 2004.
• M. Kita, M. Kondo, T. Koyama, K. Yamada, T. Matsumoto, K.H. Lee, J.T. Woo, D. Uemura, Symbioimine exhibiting inhibitory effect of osteoclast differentiation, from the symbiotic marine dinoflagellate Symbiodinium sp. J. Am. Chem. Soc. 126(15), 4794-4795, 2004.