By: Dr Pandula Siribaddana
Toll-like receptors (TLRs) are single, membrane spanning, protein receptors which play a valuable role in the innate immunity of a person. It initiates the recognition of certain molecular patters derived from microbial cells invading the human body and signals the beginning of a cascading pathway...
An overview of human embryo development step-by-step
By: Alicia M Prater PhD
A human embryo forms after fertilization – a human sperm meeting a human egg. In this process, the 23 chromosomes in the one gamete combine with the 23 chromosomes of the other gamete to form the full 46 chromosomes required for normal human life and...
By: Dr Pandula Siribaddana
Molecular imaging is a science which gathered pace from early 21st century because of the burning need to evaluate molecular processes and cellular biology in living organisms and cellular structures without altering their physiological or biological structure. In this imaging technique, biomarkers are being used...
By: Dr. Bryan Katz
Proteins tagged with fluorescent markers are extremely versatile tools in cell and molecular biology research. A fluorescent marker is, as the name suggests, a molecule that emits light of a particular wavelength following exposure to a photons of a shorter wavelength, for example a laser...
By: Omar Salvador
The activities of all the organs and systems of the human body are controlled by a dominant organ - the brain. As the body's master organ, the human brain is the center of consciousness, emotion, learning, reason, and skill; it is likewise a repository of...
Melanocytes: Description and purpose
By: Valarie Juntunen
The cells in the skin that produce melanin are called melanocytes, which literally mean "melanin cells". Melanin is one mechanism that protects the body from the harmful effects of sunlight. Exposure to sunlight triggers the melanocytes which produce melanin, darkening the skin. Most people relate...
Melanocytes: Description and purpose
By: Alicia M Prater PhD
Melanocytes are the pigment cells of the human body, determining the color of the hair and skin. These specialized cells are found in the basal (i.e. bottom) layer of the epidermis, where the hair roots start. Related cells are also found in the eye...
Melanocytes: Description and purpose
By: Jack Merrywell
Melanocytes are pigment-producing cells that rest in the bottom layer of the epidermis. They are responsible for the secretion of the pigment melanin, which is the main, dark-brown pigment in skin, eye, and hair tissue. The human epidermis contains in the order of 1,500...
By: Jeffrey Graf
The Hayflick limit proposes that somatic cells, the cells of the body, cannot divide indefinitely. The Hayflick limit remains a foundation in the theory of natural cancer defenses, as well as studies of aging. In the case of cancer theory, cancer can be thought of...
By: Kaitlyn Shepanski
Phagocytic cells are just one of the many components contributing to the inner workings of the human body. Phagocytes are the white blood cells; they absorb harmful poisons in the form of bacteria and dying or dead cells from within the body into themselves. They...

 

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