Effects of lycopene on spontaneous mammary tumour development in SHN virgin mice. 1995

H Nagasawa, and T Mitamura, and S Sakamoto, and K Yamamoto
Experimental Animal Research Laboratory, Meiji University, Kanagawa, Japan.

Effects of the chronic ingestion of lycopene, a carotenoid from tomato, on the development of spontaneous mammary tumours were examined in a high mammary tumour strain of SHN virgin mice. Beginning at 40 days of age, the control and the experimental groups were allowed free access to an AIN-76TM diet and a diet supplemented further with lycopene at the concentration of 5.0 x 10(-5)%, respectively. The treatment significantly suppressed the mammary tumour development, which suppression was associated with the decrease in the mammary gland activity of thymidylate synthetase, and serum levels of free fatty acid and prolactin. Body weight was little affected and no deleterious side-effects of lycopene were detected. All results show that lycopene could be promising as a chemopreventive agent for mammary and other types of tumours.

UI MeSH Term Description Entries
D011230 Precancerous Conditions Pathological conditions that tend eventually to become malignant. Preneoplastic Conditions,Condition, Preneoplastic,Conditions, Preneoplastic,Preneoplastic Condition,Condition, Precancerous,Conditions, Precancerous,Precancerous Condition
D011388 Prolactin A lactogenic hormone secreted by the adenohypophysis (PITUITARY GLAND, ANTERIOR). It is a polypeptide of approximately 23 kD. Besides its major action on lactation, in some species prolactin exerts effects on reproduction, maternal behavior, fat metabolism, immunomodulation and osmoregulation. Prolactin receptors are present in the mammary gland, hypothalamus, liver, ovary, testis, and prostate. Lactogenic Hormone, Pituitary,Mammotropic Hormone, Pituitary,Mammotropin,PRL (Prolactin),Hormone, Pituitary Lactogenic,Hormone, Pituitary Mammotropic,Pituitary Lactogenic Hormone,Pituitary Mammotropic Hormone
D002338 Carotenoids The general name for a group of fat-soluble pigments found in green, yellow, and leafy vegetables, and yellow fruits. They are aliphatic hydrocarbons containing 4 terpene subunits. Carotenes,Carotenoid,Tetraterpene Derivatives,Tetraterpenes,Carotene,Derivatives, Tetraterpene
D005260 Female Females
D000077276 Lycopene A carotenoid and red pigment produced by tomatoes, other red fruits and vegetables, and photosynthetic algae. It is a key intermediate in the biosynthesis of other carotenoids, and has antioxidant, anti-carcinogenic, radioprotective, and anti-inflammatory properties. All-trans-Lycopene,LYC-O-MATO,Lycopene, (13-cis)-isomer,Lycopene, (7-cis,7'-cis,9-cis,9'-cis)-isomer -,Lycopene, (cis)-isomer,Pro-Lycopene,Prolycopene,All trans Lycopene,LYC O MATO,LYCOMATO,Pro Lycopene
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D015674 Mammary Neoplasms, Animal Tumors or cancer of the MAMMARY GLAND in animals (MAMMARY GLANDS, ANIMAL). Animal Mammary Carcinoma,Mammary Carcinoma, Animal,Mammary Neoplasms,Neoplasms, Mammary,Animal Mammary Carcinomas,Animal Mammary Neoplasm,Animal Mammary Neoplasms,Carcinoma, Animal Mammary,Carcinomas, Animal Mammary,Mammary Carcinomas, Animal,Mammary Neoplasm,Mammary Neoplasm, Animal,Neoplasm, Animal Mammary,Neoplasm, Mammary,Neoplasms, Animal Mammary
D016588 Anticarcinogenic Agents Agents that reduce the frequency or rate of spontaneous or induced tumors independently of the mechanism involved. Anti-Carcinogenic Agents,Anti-Carcinogenic Drugs,Anti-Carcinogenic Effect,Anti-Carcinogenic Effects,Anticarcinogenic Drugs,Anticarcinogenic Effect,Anticarcinogenic Effects,Anticarcinogens,Agents, Anti-Carcinogenic,Agents, Anticarcinogenic,Anti Carcinogenic Agents,Anti Carcinogenic Drugs,Anti Carcinogenic Effect,Anti Carcinogenic Effects,Drugs, Anti-Carcinogenic,Drugs, Anticarcinogenic,Effect, Anti-Carcinogenic,Effect, Anticarcinogenic,Effects, Anti-Carcinogenic,Effects, Anticarcinogenic
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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