hCG

Japanese: hCG
hCG

…(2) Placental endocrine secretion During pregnancy, the placenta acts as an independent endocrine organ, taking over the functions of the ovaries and anterior pituitary gland, and secretes a group of steroid hormones and protein hormones to maintain pregnancy. The main steroid hormones are progesterone and estrogen, and the main proteins are human chorionic gonadotropin (abbreviated as hCG) and human placental lactogen (abbreviated as hPL). After the seventh week of pregnancy, progesterone is mainly produced by the syncytiotrophoblast cells of the placenta. …

From [Gonadotropin]

…They are also called gonadotropic hormones. In vertebrates, they include two hormones secreted from the anterior pituitary gland: follicle-stimulating hormone (abbreviated as FSH) and luteinizing hormone (abbreviated as LH) or interstitial cell-stimulating hormone (abbreviated as ICSH), and chorionic gonadotropin (abbreviated as CG, but abbreviated as hCG in humans), secreted from the placenta. Both are glycoproteins, and in humans, FSH has a molecular weight of about 35,000, while LH and hCG have a molecular weight of about 30,000. …

From [Choriocarcinoma]

…Very rarely, choriocarcinoma may develop as a teratoma in the ovaries or testicles (in this case in males) unrelated to pregnancy (this is called teratocarcinoma). Choriocarcinoma produces the same hormone (chorionic gonadotropin, human chorionic gonadotropin, hCG) as in normal pregnancy, so hCG measurement is used as an indicator of tumor progression. It occurs frequently in Asia, including Japan, and the incidence rate in Japan was 0.22 per 100,000 women (1980). …

*Some of the terminology that mentions "hCG" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…(2)胎盤の内分泌 妊娠中,胎盤は卵巣や脳下垂体前葉の機能を肩代りする形で,独立した内分泌器官として活動し,一群のステロイドホルモンやタンパク質ホルモンを分泌して妊娠の維持を図る。ステロイドホルモンとしてはプロゲステロンとエストロゲンが,タンパク質としてはヒト絨毛性ゴナドトロピン(hCGと略記)とヒト胎盤ラクトーゲン(hPLと略記)が主要なものである。 プロゲステロンは,妊娠第7週以後は主として胎盤の合胞体栄養膜細胞から産生される。…

【ゴナドトロピン】より

…生殖腺(性腺)刺激ホルモンともいう。脊椎動物では,脳下垂体前葉から分泌される卵胞(濾胞)刺激ホルモンfollicle‐stimulating hormone(FSHと略す)と黄体形成ホルモンluteinizing hormone(LHと略す)または間質細胞刺激ホルモンinterstitial cell‐stimulating hormone(ICSHと略す)の2種のホルモンと,胎盤から分泌される絨毛(じゆうもう)(膜)性ゴナドトロピンchorionic gonadotropin(CGと略すが,ヒトの場合はhCGと略す)が含まれる。ともに糖タンパク質で,ヒトのFSHは分子量約3万5000,LH,hCGは約3万である。…

【絨毛癌】より

…ごくまれに,妊娠と関係なく卵巣や睾丸(この場合は男子に)に奇形腫として絨毛癌が発生することがある(これを奇形腫性絨毛癌という)。絨毛癌は正常妊娠時におけると同様のホルモン(絨毛性ゴナドトロピン,human chorionic gonadotropin,hCG)を産生するので,腫瘍の病勢の指標としてhCG測定が用いられる。日本を含むアジア地域で発生頻度が高く,日本での女性人口10万当りの罹患率は0.22(1980)である。…

※「hCG」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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