Browse Reference Articles
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Hormone Disorders
Thyroid Disease
Molecular Biology
Healthy Aging
Attention Deficit Disorder
Cell Biology
Thyroid hormone
The thyroid hormones, thyroxine (T4) and triiodothyronine (T3), are tyrosine-based hormones produced by the thyroid gland. An important component in the synthesis is iodine. The thyronines act on the ... > more -
Fertility
Pregnancy and Childbirth
Mating and Breeding
Stem Cells
Sports Medicine
Attention Deficit Disorder
Spermatozoon
A spermatozoon or spermatozoan (pl. spermatozoa), and more commonly known as a sperm cell, is the haploid cell that is the male gamete. It joins an ovum to form a zygote. A zygote can grow into a new ... > more -
Healthy Aging
Attention Deficit Disorder
Amyotrophic Lateral Sclerosis
Food Additives
Brain Injury
Sports Medicine
Excitotoxicity
Excitotoxicity is the pathological process by which neurons are damaged and killed by the overactivations of receptors for the excitatory neurotransmitter glutamate, such as the NMDA receptor and ... > more -
Vector (biology)
Traditionally in medicine, a vector is an organism that does not cause disease itself but which spreads infection by conveying pathogens from one host to another. Species of mosquito, for example, ... > more -
Motor neuron
In vertebrates, motor neurons (also called motoneurons) are efferent neurons that originate in the spinal cord and synapse with muscle fibers to facilitate muscle contraction and with muscle spindles ... > more -
Molecular biology
Molecular biology is the study of biology at a molecular level. The field overlaps with other areas of biology and chemistry, particularly genetics and biochemistry. Molecular biology chiefly ... > more -
Drosophila melanogaster
Drosophila melanogaster, a dipteran (two-winged) insect, is the species of fruit fly that is commonly used in genetic experiments; it is among the most important model organisms. In modern biological ... > more -
Heat shock protein
Heat shock proteins (HSP) are a group of proteins the expression of which is increased when the cells are exposed to elevated ... > more
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