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Advancements in Stem Cell Research

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Questions and Answers

What was the significance of stem cells in 1999 according to Science magazine?

They were proven to have no potential in regenerating tissue types

They were discovered to cause safety concerns in research

They were linked to increased histocompatibility issues

They were named 'Advancement of the Year' for their ability to differentiate into other tissue types (correct)

What is a key challenge hindering the use of embryonic stem cells in cell therapy and research?

Safety concerns

Overwhelming flexibility

Histocompatibility issues (correct)

Lack of differentiation potential

Which type of stem cells do not face histocompatibility, safety, and concerns like their embryonic counterparts?

Cancer stem cells

Adult stem cells (correct)

Induced pluripotent stem cells

Embryonic stem cells

What is one key area where adult stem cells have been used in clinical studies on humans?

Stem cells obtained from bone marrow Signup and view all the answers

What is the main difference between induced pluripotent stem cells (iPSCs) and adult stem cells?

iPSCs are derived from embryos, while adult stem cells are found in adult tissues. Signup and view all the answers

What is one potential application of stem cell therapy mentioned in the text?

Regenerating functional organs to replace damaged ones. Signup and view all the answers

What is a major challenge associated with transplanting stem cells into patients?

The risk of tumors forming due to undifferentiated cells. Signup and view all the answers

Why do iPSCs provide a personalized approach to treatment?

Since they can be derived from a patient's own cells. Signup and view all the answers

What is one ethical concern associated with using embryonic stem cells in research?

Questions about the sanctity of human life. Signup and view all the answers

What was the common challenge hindering the use of embryonic stem cells in cell therapy and research?

Ethical dilemmas Signup and view all the answers

Which characteristic of adult stem cells is still under investigation?

Plasticity Signup and view all the answers

In which group of stem cells is the differentiation potential well characterized in mice and humans?

Embryo stem cells Signup and view all the answers

What is the main source of stem cells used in numerous clinical trials in humans mentioned in the text?

Bone marrow Signup and view all the answers

Why are histocompatibility, safety, and ethical issues hurdles for embryonic stem cell use?

Potential immune rejection Signup and view all the answers