Subject(s)
Group Practice , Quality of Health Care , Urinary Tract Infections/therapy , Adolescent , Adult , Age Factors , Anti-Bacterial Agents/administration & dosage , Anti-Bacterial Agents/therapeutic use , Child , Child, Preschool , Evaluation Studies as Topic , Humans , Infant , Medical Audit , Methods , Middle Aged , Military Medicine , United States , Urinary Tract Infections/diagnosis , Urinary Tract Infections/drug therapySubject(s)
Health Maintenance Organizations , Urinary Bladder Neoplasms/epidemiology , Age Factors , California , Carcinoma, Papillary/diagnosis , Carcinoma, Papillary/epidemiology , Carcinoma, Transitional Cell/diagnosis , Carcinoma, Transitional Cell/epidemiology , Female , Hematuria/etiology , Humans , Male , Middle Aged , Missouri , Recurrence , Registries , Sex Factors , Time Factors , Urinary Bladder Neoplasms/complications , Urinary Bladder Neoplasms/diagnosis , Urinary Bladder Neoplasms/mortalitySubject(s)
Internship and Residency , Medical Records , Urology/education , California , Humans , Male , Problem Solving , Prostatic Hyperplasia/diagnosisSubject(s)
Anti-Bacterial Agents/therapeutic use , Urinary Tract Infections/drug therapy , Adolescent , Adult , Blood Urea Nitrogen , Child , Child, Preschool , Creatinine/blood , Cystitis/diagnostic imaging , Female , Humans , Infant , Male , Middle Aged , Military Medicine , Prognosis , Pyelonephritis/diagnostic imaging , Pyelonephritis/drug therapy , Recurrence , Referral and Consultation , Retrospective Studies , Urethra/diagnostic imaging , Urinary Bladder/diagnostic imaging , Urinary Tract Infections/epidemiology , UrographySubject(s)
Reward , Self Stimulation , Animals , Electric Stimulation , Fishes , Haplorhini , Light , Reptiles , Sensory Receptor Cells/physiologySubject(s)
Hypothalamo-Hypophyseal System/physiology , Pituitary Hormone-Releasing Hormones/physiology , Adrenal Glands/drug effects , Age Factors , Amino Acids/analysis , Animals , Behavior, Animal/drug effects , Estrus , Female , Hypothalamus/analysis , Lactation , Ovary/drug effects , Pituitary Gland/drug effects , Pituitary Hormone-Releasing Hormones/biosynthesis , Pituitary Hormone-Releasing Hormones/blood , Pituitary Hormone-Releasing Hormones/isolation & purification , Pituitary Hormone-Releasing Hormones/pharmacology , Pituitary Hormone-Releasing Hormones/urine , Pregnancy , Self Stimulation , Stress, Physiological , Thyroid Gland/drug effectsSubject(s)
Androgens/pharmacology , Brain/physiology , Central Nervous System/drug effects , Estrogens/pharmacology , Peripheral Nerves/drug effects , Progesterone/pharmacology , Self Stimulation/drug effects , 17-Hydroxycorticosteroids/pharmacology , Amphibians , Animals , Castration , Chlorpromazine/pharmacology , Depression, Chemical , Drug Interactions , Electric Stimulation , Electrodes, Implanted , Estradiol/pharmacology , Estrus , Female , Fishes , Haplorhini , Hypothalamus/drug effects , Ketosteroids/pharmacology , Luteinizing Hormone/pharmacology , Male , Neurons/drug effects , Pregnancy , Pregnanes/pharmacology , Rabbits , Rats , Reptiles , Reward , Stimulation, Chemical , Testosterone/pharmacology , Tissue Extracts/pharmacologySubject(s)
Reward , Self Stimulation , Animals , Electric Stimulation , Fishes , Probability , Sensory Receptor CellsABSTRACT
1. Intrapituitary infusions of extracts made from the median eminence of various species at different ages were found to excite secretion of gonadotrophic hormone as shown by consequent ovulation, presumably due to their content of luteinizing hormone-releasing factor (LRF).2. Extracts from very immature animals (e.g. new-born rabbits and rats; 1-2-month-old calves) were found to be highly active with regard to LRF content.3. Extracts from foetal rabbits at 20 days of gestation showed no evidence of containing LRF.4. It is suggested that (a) LRF may have a trophic action upon the anterior pituitary gland during the pre-puberal phase of life, and that (b) the first formation of LRF coincides with the development of the primary plexus of the pituitary portal system.