STEM CELLS by https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva en-us 2020-09-03 03:49:08 UTC 2025-11-12 14:25:50 UTC hello@padlet.com WHAT ARE STEM CELLS ? sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720265769 Cells in the body have specific purposes, but stem cells are cells that do not yet have a specific role and can become almost any cell that is required. They are undifferentiated cells that can turn into specific cells, as the body needs them.]]> 2020-09-04 06:00:18 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720265769 WHY IS IT SO IMPORTANT ? sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720270687 Scientists and doctors are interested in stem cells as they help to explain how some functions of the body work, and how they sometimes go wrong. Stem cells also show promise for treating some diseases that currently have no cure such as paralysis and Alzheimer disease.        ]]> 2020-09-04 06:04:47 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720270687 Stem cells themselves do not serve any single purpose but are important for several reasons. First, with the right stimulation, many stem cells can take on the role of any type of cell. This can range from muscle cells to brain cells. In some cases, they can also fix damaged tissues. sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720544467 2020-09-04 11:17:14 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720544467 WHERE IS IT LOCATED ? sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720550370 Stem cells are present inside different types of tissue including :

1.) the brain
2.) bone marrow
3.) blood and blood vessels
4.) skeletal muscles
5.) skin
6.) the liver

However, stem cells can be difficult to find. They can stay non-dividing and non-specific for years until the body summons them to repair or grow new tissue.]]> 2020-09-04 11:24:43 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720550370 TISSUE REGENERATION sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720612327 Tissue regeneration is probably the most important use of stem cells.
Until now, a person who needed a new kidney, for example, had to wait for a donor and then undergo a transplant.There is a shortage of donor organs but, by instructing stem cells to differentiate in a certain way, scientists could use them to grow a specific tissue type or organ.
As an example, doctors have already used stem cells from just beneath the skin’s surface to make new skin tissue. They can then repair a severe burn or another injury by grafting this tissue onto the damaged skin, and new skin will grow back.


]]> 2020-09-04 12:19:02 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720612327 EMBRYONIC STEM CELLS sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720740190 When a sperm fertilizes an egg, these cells combine to form a single cell called a zygote.This single-celled zygote then starts to divide, forming 2, 4, 8, 16 cells, and so on. Now it becomes an embryo.Around 3–5 days after a sperm fertilizes an egg, the embryo takes the form of a blastocyst.The blastocyst contains stem cells. Embryonic stem cells come from a blastocyst that is 4–5 days old.Embryonic stem cells can differentiate into more cell types than adult stem cells.


]]> 2020-09-04 13:18:18 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/720740190 TYPES OF STEM CELLS sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723121233 Stem cells are of the following different types:

  • Embryonic Stem Cells
  • Adult Stem Cells
  • Induced Pluripotent Stem Cells
  • Mesenchymal stem cells


]]> 2020-09-06 06:37:49 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723121233 HOW DO WE GET EMBRYONIC STEM CELLS FROM EMBRYOS? sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723220854 When scientists take stem cells from embryos, these are usually extra embryos that result from in vitro fertilization (IVF).In IVF clinics, the doctors fertilize several eggs in a test tube, to ensure that at least one survives. They will then implant a limited number of eggs to start a pregnancy.]]> 2020-09-06 08:40:51 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723220854 THE EMBRYONIC STEM CELLS CAN BE FURTHER CLASSIFIED AS : sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723277194
  • Totipotent Stem Cells: These can differentiate into all possible types of stem cells.
  • Pluripotent Stem Cells: These are the cells from an early embryo and can differentiate into any cell type.
  • Multipotent Stem Cells: These differentiate into a closely related cell type. For eg., the hematopoietic stem cells differentiate into red blood cells and white blood cells.
  • Oligopotent Stem Cells: Adult lymphoid or myeloid cells are oligopotent. They can differentiate into a few different types of cells.
  • Unipotent Stem Cells: They can produce cells only of their own type. Since they have the ability to renew themselves, they are known as unipotent stem cells. For eg., Muscle stem cells.

    • ]]>     2020-09-06 10:17:15 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723277194     ADULT STEM CELLS sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723285947 Also called tissue-specific or somatic stem cells, adult stem cells exist throughout the body from the time an embryo develops.The cells are in a non-specific state, but they are more specialized than embryonic stem cells. They remain in this state until the body needs them for a specific purpose, say, as skin or muscle cells.These stem cells are obtained from developed organs and tissues. They can repair and replace the damaged tissues in the region where they are located. 

    ]]>     2020-09-06 10:35:14 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723285947     MESENCHYMAL STEM CELLS sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723301972 These cells are mainly formed from the connective tissues surrounding other tissues and organs known as the stroma. These mesenchymal stem cells are accurately called stromal cells. The first mesenchymal stem cells were found in the bone marrow that is capable of developing bones, fat cells, and cartilage.There are different mesenchymal stem cells that are used to treat various diseases as they have been developed from different tissues of the human body. The characteristics of mesenchymal stem cells depend on the organ from where they originate.]]> 2020-09-06 11:09:25 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723301972 INDUCED PLURIPOTENT STEM CELLS : sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723407300 These cells have been tested and arranged by converting tissue-specific cells into embryonic cells in the lab. These cells are accepted as an important tool to learn about normal development, onset and progression of the disease and also helpful in testing various drugs. These stem cells share the same characteristics as embryonic cells do. They also have the potential to give rise to all the different types of cells in the human body.]]> 2020-09-06 14:35:13 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723407300 WHAT IS A STEM CELL-LINE ? sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723411526 To grow stem cells, scientists first extract samples from adult tissue or an embryo. They then place these cells in a controlled culture where they will divide and reproduce but not specialize further.Stem cells that are dividing and reproducing in a controlled culture are called a stem-cell line.Researchers manage and share stem-cell lines for different purposes. They can stimulate the stem cells to specialize in a particular way. This process is known as directed differentiation.]]> 2020-09-06 14:40:33 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723411526 APPLICATIONS OF STEM CELLS ARE : sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723414376
    Tissue Regeneration

    Treatment of Cardiovascular Disease

    Treatment of Brain Diseases

    Blood Disease Treatment

    Treatment of heart and diabetes
    ]]>     2020-09-06 14:44:13 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723414376     CARDIOVASCULAR DISEASE TREATMENT : sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723428274 In 2013, a team of researchers from Massachusetts General Hospital reported in PNAS Early Edition that they had created blood vessels in laboratory mice, using human stem cells.Within 2 weeks of implanting the stem cells, networks of blood-perfused vessels had formed. The quality of these new blood vessels was as good as the nearby natural ones.
    The authors hoped that this type of technique could eventually help to treat people with cardiovascular and vascular diseases.]]>     2020-09-06 15:07:32 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723428274     BRAIN DISEASE TREATMENT : sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723447112 Doctors may one day be able to use replacement cells and tissues to treat brain diseases, such as Parkinson’s and Alzheimer’s.In Parkinson’s, for example, damage to brain cells leads to uncontrolled muscle movements. Scientists could use stem cells to replenish the damaged brain tissue. This could bring back the specialized brain cells that stop the uncontrolled muscle movements.Researchers have already tried differentiating embryonic stem cells into these types of cells, so treatments are promising.

    ]]>     2020-09-06 15:38:33 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723447112     BLOOD DISEASE TREATMENT sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723448953 Doctors now routinely use adult hematopoietic stem cells to treat diseases, such as leukemia, sickle cell anemia, and other immunodeficiency problems.Hematopoietic stem cells occur in blood and bone marrow and can produce all blood cell types, including red blood cells that carry oxygen and white blood cells that fight disease.]]> 2020-09-06 15:41:52 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723448953 HEART AND DIABETES TREATMENT : sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723449971 Scientists hope one day to be able to develop healthy heart cells in a laboratory that they can transplant into people with heart disease.These new cells could repair heart damage by repopulating the heart with healthy tissue.

    Similarly, people with type I diabetes could receive pancreatic cells to replace the insulin-producing cells that their own immune systems have lost or destroyed.The only current therapy is a pancreatic transplant, and very few pancreases are available for transplant.]]>     2020-09-06 15:43:40 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723449971     sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723454840 2020-09-06 15:52:06 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723454840 sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723458081 2020-09-06 15:58:14 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723458081 sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723460844 2020-09-06 16:03:28 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723460844 sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723504288 2020-09-06 17:19:44 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723504288 sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723510334 2020-09-06 17:30:04 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/723510334 VIDEO ON STEM CELL : sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724617446 https://youtu.be/K7D6iA7bZG0]]> 2020-09-07 09:51:37 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724617446 STEM CELLS sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724619212 2020-09-07 09:53:25 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724619212 QUIZ CORNER : sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724643868 Click on the link given below and answer the questions. Write your score in the comments below

    https://www.medindia.net/medical-quiz/quiz-on-stem-cells.asp#quiz]]>     2020-09-07 10:20:19 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724643868     UNSCRAMBLE THE WORDS ! sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724657820
    1.) TSME LELSC
    2.) ISTESU TERENRAGINEO
    3.) KSINOPANR
    4.) TFSEU
    5.) CALMSEEHYNM MEST SLECL

    COMMENT DOWN BELOW YOUR ANSWERS :]]>     2020-09-07 10:35:57 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724657820     sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724667061 2020-09-07 10:47:27 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724667061 sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724676522 2020-09-07 10:59:02 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724676522 sunitadewra https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724677702 2020-09-07 11:00:27 UTC https://padlet.com/sunitadewra/gf6a8eu1sdtcyjva/wish/724677702