Category: T

Neurofibromatosis Type 2 (NF-2) is a less common type of neurofibromatosis. Neurofibromatoses are genetically transmitted disorders of the nervous system that often have an autosomal dominant pattern of transmission. These disorders may cause tumor growth on nerves and other abnormalities, such as multiple skin changes (e.g., cafe au lait spots) and bone deformities (National Institute…

Neurofibromatosis is one of a series of disorders described as neurocutaneous syndromes (phakomatoses). Neurofibromatosis is an autosomal dominant genetic disorder that affects the development and growth of ectodermal tissues. There are two distinctive forms of NF, Type 1 (NF-1) and Type 2 (NF-2). NF-1 is characterized by multiple hyper pigmented areas and peripheral neurofibromas. NF-2…

Tay syndrome is a hereditary disorder characterized by trichothiodystrophy (brittle, sulfur-deficient hair) and dry, scaly skin (ichthyosis). Males and females are equally affected, and Tay syndrome is believed to be an autosomal recessive trait.  

Three types of transcortical aphasia were identified by Goldstein in 1948, including transcortical sensory aphasia, transcortical motor aphasia, and mixed transcortical aphasia. In transcortical motor aphasia, the damage occurs in the frontal lobe, anterior to Broca’s area along the motor speech cortex. The lesion is often deep in the cortical matter. In transcortical sensory aphasia,…

Tribulus terrestris is marketed for unproven testosterone-enhancing capabilities. Very little research is available regarding its ergogenic potential; however, one study in which resistance-trained men consumed an herbal preparation containing 3.21 mg of Tribulus per kg of body weight failed to demonstrate enhancements in body weight and composition, strength, or mood states. In fact, the placebo…

Three amino acids joined together via the peptide bonds. A tripeptide is three amino acids linked together by peptide bonds. The product of a combination of three amino acids formed during proteolytic digestion.  

The most important mycotoxins produced by the mold Fusarium. They can be classified as 12,13-epoxytrichothecenes and macrocyclic resorcyclates (naturally occurring derivatives of b-resorcyclic acid). The production of trichothecenes is shared by the species of Trichothecium, Myrothecium, Trichoderma, and Cephulosporium. There are three types of trichothecenes. (1) monoepoxytrichothecenes (8-deoxymonoepoxytrichothecenes (structure I), including diacetoxy- scirpenol and T-2…

A synthetic vitamin A derivative used to treat acne. An antiacne skin cream. Retinoic acid, also known as tretinoin (Avita, Renova, Retin-A, Altinac) is a derivative of vitamin A that treats acne by preventing the formation of pimples. It is applied to the skin as a cream, gel, or liquid. Tretinoin is also available as…

A drug that is a vasodilator and is used to treat hypertension.  

In several studies, a cross-reactivity has been reported between birch pollen and nuts. This cross¬ reactivity shows itself in a syndrome that is known as the para-birch syndrome. The complaints of people suffering from this syndrome result from a birch pollen allergy (sneezing, nasal obstruction, and conjunctivitis during the birch pollen season) and also from…