Stem cells & Organ Transplantation
How do Stem Cells help in wound healing?
How do Stem cells play an important role in wound healing?
- Stem cells are special types of cells present in the body of multicellular organisms.
- It gives rise to all other types of cells present in the body of multicellular organisms.
- Define stem cells.
The organism is in the form of a mass of cells that are almost alike at the earliest stage of development. Those cells are called Stem Cells.
How are stem cells samples collected?
Stem cell samples are carefully collected from the sources like cord blood, red bone marrow, or embryo (blastocyst). It is kept in liquid nitrogen in small, sterile vials at -135 degrees Celsius to -190 degrees Celsius for preservation.
How are different types of cells in the human body formed by pluripotency?
How are different types of tissues formed in the body by stem cells?
- Division of the zygote is converted in the embryo by repeated mitotic division.
- Cell differentiation starts from the 14th day of conception like osteocytes (bone cells), hepatocytes (liver cells), and neurons, etc.
- 230 different types of cells in the human body are formed from embryonic stem cells.
- Stem cells are the primary type of undifferentiated parent cells with self-multiplying ability are called pluripotency.
- It is collected well before the beginning of differentiation on the 14th day. It is cultured with biochemical stimulus and transform into desired type of cells, tissues and lastly into organ
What are the various uses of stem cells?
- Regenerative therapy:
- Cell therapy: Stem cells are used to replace the dead cells in case of conditions like diabetes, myocardial infections, Alzheimer's disease, Parkinson's disease, etc.
- It produces blood cells required in conditions like anemia, thalassemia, leukemia, etc.
- Organ transplantation:
In case of failure of organs like kidneys and liver, those can be produced with the help of stem cells and transplanted.
Write a note on organ transplantation.
How can an organ transplant save one's life?
How can one donate a kidney?
How do we take precautions while organ transplantation?
How does it lead to the emergence of concepts to donate body and organ posthumously?
- It needs for organ transplantation.
- Various organs in the human body become less efficient or completely functionless due to various reasons like aging, accidents, infections, disorders, etc.
- Life of such person difficult or even fatality may occur under such conditions. Therefore, organ transplantation can be saved one life.
- Kidney donation:
- Each person has a pair of kidneys. As the process of excretion can occur with the help of a single kidney. Therefore, the person can donate another kidney.
- Precautions:
It needs to be paid attention to various factors while organ transplantation like blood group, diseases, disorders, age, etc. of both the donor and the recipient. Because it may occur fatal and even death also. Therefore, we take precautions while organ transplantation. - Concepts of posthumous (after death) donation:
Organs like liver, heart, eyes, etc. cannot be donated during lifetime. It can be donated after death only. Hence, it leads to the emergence of concepts like posthumous donation of body and organ.
How is organ donation worthy and increasing awareness about body donation?
How can the life of many people be saved by organ and body donation?
- Blinds can regain vision.
- Life of many people can be rendered comfortable by the donation of organs like the liver, kidneys, heart, heart valves, skin, etc.
- The body can be made available for research in medical studies. Therefore, the life of many people can be saved by organ and body donation.
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