Search Results - "Koseki, Kyohei"

High-dose folic acid supplementation results in significant accumulation of unmetabolized homocysteine, leading to severe oxidative stress in Caenorhabditis elegans by Koseki, Kyohei, Maekawa, Yukina, Bito, Tomohiro, Yabuta, Yukinori, Watanabe, Fumio

“…Using Caenorhabditis elegans as a model animal, we evaluated the effects of chronical supplementation with high-dose folic acid on physiological events such as…”
Get full text

Characterization of vitamin B12 compounds from traditional fermented Japanese seafoods by Yamanaka, Tamami, Ishikura, Chisa, Koseki, Kyohei, Bito, Tomohiro, Umebayashi, Yukihiro, Watanabe, Fumio

“…This study identified vitamin B 12 compounds in traditional fermented Japanese seafoods, such as heshiko made with a mackerel, kusaya made with a flying fish,…”
Get full text

Production and characterization of cyanocobalamin‐enriched tomato (Solanum lycopersicum) fruits grown using hydroponics by Yamamoto, Aoi, Seki, Mahiro, Koseki, Kyohei, Yabuta, Yukinori, Shimizu, Katsuhiko, Arima, Jiro, Watanabe, Fumio, Bito, Tomohiro

“…BACKGROUND Vitamin B12 is an essential vitamin that is absent in plant‐derived foods such as fruits and vegetables. This can result in an increased risk of…”
Get full text

Characterization of vitamin B12 compounds from commercially available fish roe products by Yamanaka, Tamami, Namura, Mika, Koseki, Kyohei, Bito, Tomohiro, Umebayashi, Yukihiro, Watanabe, Fumio

“…Although fish roes (or the egg-laden ovary) are seafood products with high nutritional value and are considered abundant in vitamins including vitamin B 12 ,…”
Get full text

5-hydroxymethyl-2-furaldehyde purified from Japanese pear (Pyrus pyrifolia Nakai cv. Nijisseiki) juice concentrate inhibits melanogenesis in B16 mouse melanoma cells by Bito, Tomohiro, Koseki, Kyohei, Asano, Ryota, Ueda, Nakaba, Yamada, Takuhiro, Yabuta, Yukinori, Ichiyanagi, Tsuyoshi, Ishihara, Atsushi, Watanabe, Kishi, Watanabe, Fumio

“…Pear juice concentrate prepared by boiling Japanese pear (Pyrus pyrifolia Nakai cv. Nijisseiki) juice can significantly inhibit the activity of tyrosinase, a…”
Get full text

Determination of Vitamin B12 and Folate Compounds in Commercially Available Edible Seaweed Products by Koseki, Kyohei, Yoshimura, Ryusei, Ido, Koki, Katsuura, Kiho, Bito, Tomohiro, Watanabe, Fumio

“…BACKGROUNDInformation on the contents of both vitamin B12 and folate in edible seaweeds is limited, of which deficiencies disrupt methionine biosynthesis to…”
Get full text

Growth Response of Lactobacillus rhamnosus Chloramphenicol-Resistant Strain ATCC 27773 to Pteroyl-Mono- and -Di-Glutamates by KOSEKI, Kyohei, OKAMOTO, Naho, BITO, Tomohiro, EBARA, Shuhei, YABUTA, Yukinori, WATANABE, Fumio

“…This study investigated the effect of various concentrations of pteroyl-mono-γ-glutamate (PteGlu1) and pteroyl-di-γ-glutamate (PteGlu2) on the growth of…”
Get full text

Dityrosine Crosslinking of Collagen and Amyloid-β Peptides Is Formed by Vitamin B12 Deficiency-Generated Oxidative Stress in Caenorhabditis elegans by Koseki, Kyohei, Yamamoto, Aoi, Tanimoto, Keisuke, Okamoto, Naho, Teng, Fei, Bito, Tomohiro, Yabuta, Yukinori, Kawano, Tsuyoshi, Watanabe, Fumio

“…(1) Background: Vitamin B12 deficiency in Caenorhabditis elegans results in severe oxidative stress and induces morphological abnormality in mutants due to…”
Get full text

Characterization of Vitamin B12 Compounds in Commercially Available Livestock Livers Used as Foods by Koseki, Kyohei, Namura, Mika, Bito, Tomohiro, Umebayashi, Yukihiro, Watanabe, Fumio

“…Although cow livers are a good source of vitamin B12, it is unclear whether the liver contains inactive corrinoid compounds, such as pseudovitamin B12, most…”
Get full text

Characterization of Vitamin B12 Compounds in Fermented Poultry Manure Fertilizers by Katsura, Hiromi, Koseki, Kyohei, Bito, Tomohiro, Takenaka, Shigeo, Watanabe, Fumio

“…(1) Background: Currently, no data are available on the vitamin B12 content of an organic fertilizer product, viz. fermented poultry manure, or whether the…”
Get full text

Source of Vitamin B12 in plants of the Lemnaceae family and its production by duckweed-associated bacteria by Acosta, Kenneth, Sree, K. Sowjanya, Okamoto, Naho, Koseki, Kyohei, Sorrels, Shawn, Jahreis, Gerhard, Watanabe, Fumio, Appenroth, Klaus-J., Lam, Eric

“…While most plants are not known to contain significant levels of the essential corrinoid cobalamin (vitamin B12), considerable levels of vitamin B12 were found…”
Get full text

Traditional Asian plant‐based fermented foods as vitamin B12 sources: A mini‐review by Koseki, Kyohei, Teng, Fei, Bito, Tomohiro, Watanabe, Fumio

“…Plant‐based foods, such as vegetables and beans, are deficient in vitamin B12 (B12). If plant‐based foods containing adequate B12 can be produced microbially,…”
Get full text

Effect of roasted purple laver (nori) on vitamin B12 nutritional status of vegetarians: a dose-response trial by Huang, Qian-Ni, Watanabe, Fumio, Koseki, Kyohei, He, Rui-En, Lee, Hui-Ling, Chiu, Tina H. T.

“…Purpose To investigate the bioavailability of vitamin B 12 from nori and to evaluate the required dosage for improving vitamin B 12 nutritional status in…”
Get full text

Traditional Asian plant‐based fermented foods as vitamin B 12 sources: A mini‐review by Koseki, Kyohei, Teng, Fei, Bito, Tomohiro, Watanabe, Fumio

“…Plant‐based foods, such as vegetables and beans, are deficient in vitamin B 12 (B 12 ). If plant‐based foods containing adequate B 12 can be produced…”
Get full text

Characterization of Vitamin B 12 Compounds in Commercially Available Livestock Livers Used as Foods by Koseki, Kyohei, Namura, Mika, Bito, Tomohiro, Umebayashi, Yukihiro, Watanabe, Fumio

Get full text

Characterization of Vitamin B 12 Compounds from Commercially Available Fish Sauce Products by Yamanaka, Tamami, Katsuura, Kiho, Koseki, Kyohei, Bito, Tomohiro, Prangthip, Pattaneeya, Umebayashi, Yukihiro, Watanabe, Fumio

Get full text

Effect of roasted purple laver (nori) on vitamin B 12 nutritional status of vegetarians: a dose-response trial by Huang, Qian-Ni, Watanabe, Fumio, Koseki, Kyohei, He, Rui-En, Lee, Hui-Ling, Chiu, Tina H T

“…To investigate the bioavailability of vitamin B from nori and to evaluate the required dosage for improving vitamin B nutritional status in vegetarians not…”
Get full text

Characterization of Vitamin B12 Compounds from Commercially Available Fish Sauce Products by Yamanaka, Tamami, Katsuura, Kiho, Koseki, Kyohei, Bito, Tomohiro, Prangthip, Pattaneeya, Umebayashi, Yukihiro, Watanabe, Fumio

“…After immunoaffinity purification, the vitamin B12 contents of 12 types of commercially available fish sauce products were determined using reversed-phase…”
Get full text

Determination of Vitamin B 12 and Folate Compounds in Commercially Available Edible Seaweed Products by Koseki, Kyohei, Yoshimura, Ryusei, Ido, Koki, Katsuura, Kiho, Bito, Tomohiro, Watanabe, Fumio

“…Information on the contents of both vitamin B12 and folate in edible seaweeds is limited, of which deficiencies disrupt methionine biosynthesis to accumulate…”
Get full text

Vitamin B 12 Carboxylic Acid Characterization in the Viscera Edible Portions of Lobster, Crayfish, Crab, and Shrimp by Koseki, Kyohei, Okamoto, Naho, Ito, Yui, Bito, Tomohiro, Ishihara, Atsushi, Umebayashi, Yukihiro, Watanabe, Fumio

Get full text