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Featured researches published by Yaetsu Kurosawa.


Biochemical Genetics | 2002

Apolipoprotein C Polymorphism in Sheep: Allele Frequencies and Association with Plasma Lipid and Lipoprotein Levels

Kenji Tsunoda; Shohei Hamato; Shoei Kurosawa; Ayako Shirato; Yaetsu Kurosawa; Koichiro Fujimaki; Masahiro Muto; Keizo Sato

The genetic polymorphism of apolipoprotein C in normal plasma of four European sheep breeds (Suffolk, Corriedale, Cheviot, and Finn) was first detected using one-dimensional polyacrylamide gel isoelectric focusing (pH 2.5–5.0) followed by immunoblotting with antihuman apolipoprotein CII antibody. Six phenotypes (1-1, 2-1, 2-2, 3-1, 3-2, and 3-3) were identified in the 4.3–4.8 pH range, consisting of the combination of three isoform groups. On the basis of family and population data, these phenotypes were controlled autosomally by three codominant alleles, designated APOC*1, APOC*2, and APOC*3, the first being the most common allele. The frequency distributions of these alleles were similar between the Suffolk and Corriedale sheep, and between the Cheviot and Finn sheep. The former breeds had a significantly lower APOC*2 frequency than the latter breeds (P< 0.001). The mean plasma total-, HDL- and LDL-cholesterol levels of type 3-1 animals were significantly higher compared to type 1-1 animals in the Suffolk sheep (P≦ 0.04). However, these differences were not seen in the Corriedale sheep


Japanese Journal of Sheep Science | 1993

Phenotyping of Ovine ^|^beta;-Lactoglobulin by Isoelectric Focusing and Immunoblotting

Kenji Tsunoda; Noriyuki Takahashi; Yaetsu Kurosawa

羊乳におけるβ-lactoglobulin(β-Lg)の 遺伝 的多型 は澱粉 ゲル電気泳動法 を用いBELL and McKENZIE1)に よって発見されたが,そ の構成成 分のβ-LgAと β-LgBの 物理化学的および免疫 学的性質 に研究の主眼が置かれた2)。後 にβ-Lg の多型はKING3)に よって改めて彼 らと同 じ分析 方法によりA,ABお よびBの3っ の遺伝的変異 型 として分類確認され,英 国種でその出現頻度が 調査 された。 さらに ロシア4),チ ェコスロバキ ア4),ド イツ4)およびイタリア系5)などの羊におい ても同様の多型が確認され,い ずれも澱粉ゲル電 気泳動法によって分析された。近年では等電点電 気泳動法の開発 によってERHARDT6)は ポリアク リルア ミドゲルを支持体 として ドイッやブルガ リ ア系の羊のβ-Lgの 分析を試み,従 来の変異成分 の他に新たにβ-LgCを 発見 し,A, AB, B, AC, BCお よびCの6種 類の表現型を報告 している。 β-Lgを 始め乳蛋白変異 は遺伝標識 として集団 の遺伝 的分化7)や 乳製品,特 にチーズの製造効 率8)との関係においてその有用性が注目されてい る。著者 らはアジア系在来羊の遺伝的分化を調査 してお り9,10),従来 の血液蛋白の他に新たに乳蛋 白を対象に検討を行 う予定であるが,わ が国では 羊の乳蛋白変異に対する分析方法が未だ確立 して い な い。


Animal Blood Groups and Biochemical Genetics | 2009

Genetic relationship among several pig populations in East Asia analysed by blood groups and serum protein polymorphisrns

Kazue Tanaka; Takao Oishi; Yaetsu Kurosawa; Shozo Suzuki


Animal Science Journal | 2008

Mitochondrial diversity of native pigs in the mainland South and South-east Asian countries and its relationships between local wild boars

Yoshiatsu Iwaki; Tatsuya Takizawa; Tashi Dorji; Gyem Tshering; Yaetsu Kurosawa; Yoshizane Maeda; Hideyuki Mannen; Koh Nomura; Vu-Binh Dang; Loan Chhum-Phith; Bounthong Bouahom; Yoshio Yamamoto; Than Daing; Takao Namikawa


Animal Blood Groups and Biochemical Genetics | 2009

Immunogenetic studies on wild pigs in Japan

Yaetsu Kurosawa; Takao Oishi; Kazue Tanaka; Shozo Suzuki


Nihon Chikusan Gakkaiho | 2003

Genetic Statistical Analysis on Carcass Traits and Daily Gain of Japanese Black Cattle in Southern Part of Iwate Prefecture

Keisuke Kawada; Shigeto Kanematsu; Yaetsu Kurosawa; Takayuki Ibi; Yoshiyuki Sasaki


Animal Blood Groups and Biochemical Genetics | 2009

Genetic polymorphism of erythrocyte esterase‐D in pigs

Kazue Tanaka; Yaetsu Kurosawa; K. Kurokawa; Takao Oishi


Journal of Veterinary Medical Science | 1998

Geographical Variation of Mandible Size and Shape in the Ryukyu Wild Pig (Sus scrofa riukiuanus)

Hideki Endo; Seishi Maeda; Daishiro Yamagiwa; Masamichi Kurohmaru; Yoshihiro Hayashi; Shosaku Hattori; Yaetsu Kurosawa; Kazue Tanaka


Nihon Chikusan Gakkaiho | 1992

Morphological identification and ecology of the red jungle fowl in Nepal.

Takao Nishida; Yoshihiro Hayashi; Takayoshi Shotake; Yoshizane Maeda; Yoshio Yamamoto; Yaetsu Kurosawa; K. Douge; A. Hongo


Journal of Veterinary Medical Science | 2000

Geographical variation of mandible size and shape in the Japanese wild pig (Sus scrofa leucomystax).

Hideki Endo; Yoshihiro Hayashi; Motoki Sasaki; Yaetsu Kurosawa; Kazue Tanaka; Kyomi Yamazaki

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Kazue Tanaka

Tokyo University of Agriculture

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Takao Oishi

Tokyo University of Agriculture

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Shozo Suzuki

Tokyo University of Agriculture

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Shin-ichi Suzuki

Tokyo University of Agriculture

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