H. Nagasawa

The effects of single pituitary grafting and treatments with progesterone or oestrogen on mammary gland growth and uterine adenomyosis were studied in four strains of female and male mice with different mammary gland growth potentials (SHN/…

Based on our previous findings that medroxyprogesterone acetate (MPA) significantly suppressed the formation of preneoplastic mammary hyperplastic alveolar nodules in mice, and that this suppression persisted for some time, we studied the e…

As a possible step to estimate the factors controlling the effects of progesterone on mammary tumorigenesis, 3 groups of SHN virgin female mice were treated as follows beginning 2.5-4 months of age: Group A received the subcutaneous implant…

The relative incidence of mammary tumors with uterine adenomyosis was examined in SHN mice subjected to hormonal manipulation between 30 and 90 days of age. The incidence of mammary tumors paralleled that of adenomyosis in controls. A singl…

As a step in the evaluation of the role of growth hormone (GH) in mammary tumorigenesis, the effects of neonatal treatment with monosodium glutamate (MSG) on normal and neoplastic mammary growth, plasma levels of GH and prolactin (PRL) and …

The effect of different schedules of bromocriptine-mesilate (CB-154; 0.2 mg/day) treatment on the development of precancerous mammary hyperplastic alveolar nodules (HAN) and uterine adenomyosis was investigated in a virgin SHN strain of mic…

Ectopic pituitary transplantation induced a high incidence of adenomyosis in SHN mice. Early signs of the development of adenomyosis were the penetration of stromal connective tissue into myometrium followed by uterine gland invasion. Assoc…

Ectopic (intrauterine and under the renal capsule) pituitary transplantation induced a high incidence of adenomyosis with subserous nodules in both SHN and SLN strains of mice. Early signs of the development were the invasion of stromal fib…

The effects of daily subcutaneous injections of 0.2 mg CB-154 (bromocriptine-mesilate), a potent suppressor of pituitary prolactin secretion, between 4 and 11 weeks of age on the occurrence of spontaneous mammary tumors and adenomyosis, a h…