2. During a Journal Club meeting while I was a postdoctoral fellow at Stanford University I was asked to discuss a paper by Enesco and Le Blond. This was in 1964, the early days of the DNA revolution. And these authors noted that the amount of DNA in every cell of a particular species was the same. This number was already known in many species—6.2 picagrams of DNA in every rat cell; 6.0 picagra...

This article considers how experience can influence the developing and mature brain and proposes a new categorization scheme based upon the type of information stored and the brain mechanisms that appear to be involved in storing it. In this scheme, experience-expectant information storage refers to incorporation of environmental information that is ubiquitous in the environment and common to a...

Several different bodies of evidence support a link between infection and altered brain development. Maternal infections, such as influenza and human immunodeficiency virus, have been linked to the development of autism spectrum disorders, differences in cognitive test scores, and bipolar disorder; an association that has been shown in both epidemiologic and retrospective studies. Several viral...

*Correspondence to: John H Lazarus MD, Thyroid Research Group, Cardiff School of Medicine, Cardiff, United Kingdom, E-mail: [email protected] Abstract The aim of this review is to indicate the current position on the role of thyroxine (T4) and fetal brain development with particular relevance to the human situation. Adequate maternal iodine nutrition and maternal circulating thyroxine (T4) conce...