Comparative Endocrinology on Sex Differentiation in Avian Species

Sex differentiation in goat fetus

Reproduction in domestic animals, as a major source of food and other products for human, has greatimportance and study of related subjects including sex differentiation and gonadogenesis during fetal life can solve many questions on normal development and various disorders of urogenital system. Since studies on sex differentiation in goat fetus are scarce, this study was performed. Twenty-five...

Comparative Endocrinology

More recently, in the hurly-burly of expansion that has followed the development of new virus culture methods, pathological changes in virus infected cells have frequently been neglected. Even the electron microscope was used at first almost exclusively in the study of extracellular virus. Now, in this symposium, sponsored by the New York Academy of Sciences, Dr. Robert Love has brought togethe...

Female Sex Endocrinology

Comparative Transcriptomics in East African Cichlids Reveals Sex- and Species-Specific Expression and New Candidates for Sex Differentiation in Fishes

Males and females of the same species differ largely in gene expression, which accounts for most of the morphological and physiological differences and sex-specific phenotypes. Here, we analyzed sex-specific gene expression in the brain and the gonads of cichlid fishes from Lake Tanganyika belonging to four different lineages, so-called tribes (Eretmodini, Ectodini, Haplochromini, and Lamprolog...

Comparative Endocrinology of Prolactin

beneficial in any way other than prolonging dying," the medical indications policy still leaves doctors, patients, and families with the unenviable burden of defining such intangibles as "dying" and "beneficial." In some instances his policy even leads Ramsey into patent absurdities such as defining an anencephalic infant to be dead, despite the fact that an anencephalic infant meets at most on...