The following points highlight the three major causes of cancer. The causes are: 1. Radiant Energy 2. Chemical Compounds 3. Oncogenic Viruses. Cause # 1. Radiant Energy: (a) Ultraviolet rays, X-rays, and y-rays damage DNA in several ways. (b) Ultraviolet radiation may cause pyrimidine dimers to form. (c) Apurinic or apyrimidinic sites may form by elimination of corresponding bases. Single [...]
In this article we will discuss about the History and Advancement of Clinical Biochemistry. Clinical Biochemistry: From the time of Hippocrates (C.460-C.375 B.C.) the crude examination of body fluids including urine had been done. Thomas Willis, in the second half of the 17th century wrote a dissertation on urine and did the sweet taste to differentiate between the two types [...]
The following points highlight the three main components of a Neuron. The components are: 1. Perikaryon 2. Axon 3. Myelin Sheath and Myelinogenesis. Neuron: Components # 1. Perikaryon: (a) Its diameter varies from 5µ to 125µ. (b) It has a cell membrane, cytoplasm, a large vesicular nucleus containing a single prominent nucleolus, numerous rod-like or spherical mitochondria, and a Golgi [...]