Developmental biology

Stem Cells To start off, a stem cell is an undifferentiated cell of a multicellular organism that has the ability to assist other cells of the same type. They come from developed organs and tissues in the human body. You may think of a stem cell as a “blank” cell because it has not decided what it wants to be. It might become a skin cell, heart muscle, nerve cell, bone cell, etc. The use of stem cells is a controversial topic. You can view the use of stem cells through different points of views…

Has anyone ever wondered about all the cells in their body, and what they can do, and how they work? Till and McCulloch were known as the first two people to know what stem cells are, and used them in a research paper in 1963(Who Really Discovered Stem Cells?). Dr. Florence Sabin is technically the first person the person they recently discovered because he had turned in an essay about stem cells in 1931(Who Really Discovered Stem Cell?). With all the research that is here, more people would…

Why Stem-Cell Research is a Good Thing The world we live in is constantly debating over the ethicality of a multitude of issues. Typically they pertain to why something major could help an individual on a micro or macro scale but, often sacrifices something deemed morally or ethically wrong. These issues often divide us and can often cause complications. The first topic people usually think of when it comes to a situation is abortion. Since stem-cell research is loosely related to the abortion…

What is the relevance of embryonic study to clinical medicine? Embryology consists of investigation of the cellular, molecular and structural factors contributing to the formation of an organism. It also provides a logical framework for understanding human anatomy. The fundamental knowledge of embryonic study is important for creating health care strategies for better reproductive outcomes. The expanding understanding on embryology has resulted in new techniques being developed for therapeutic…

Background: During vertebrate development, neurons differentiate before glial cells. Common progenitor model and heterogeneous progenitor model were proposed to explain this differential paradox. This paper aims to resolve the uncertain lineage relationship between the two differentiated cells and identify the basis for the fate of speciation. Hypothesis 1: pMN progenitor fate is biased by the position of the cell within the pMN domain. Experimental Approach: Transgenic…

Lawrence Livermore researchers recently published a study about how shock waves will cause damage the membrane proteins for a patient suffering from brain injury. These shock wave TBIs have become common with improvised explosive devices that we have seen used in Iraq and Afghanistan. Experts estimate that around 230,000 military veterans have suffered from TBI between 2001 to 2014. The problem is that we do not deeply understand how this takes place. Researchers are not sure how exposure to…

Contemporary Biology Article Assignment To Mend a Birth Defect, Surgeons Operate on the Patient Within the Patient Since the 1990s, Spina Bifida has been repaired by Doctors fetal surgery to lessen the degree of disability. Spina Bifida causes children to not be able to walk, as well as fluid buildup in the brain. It affects 1.500 to 2,000 fetuses a year. The backbone and spinal cord never develop completely or properly causing a gap in the fetus’s lower back exposing bone and nerves. In…

The Underlying biology of Chimera Stem Cells: 1. The blastocyst helps make the different parts of the embryo inner cell mass, which in turn helps to make the embryo proper 2. The trophectoderm and primitive endoderm make extra embryonic structures that support the growth of the embryo 3. Two to eight cell stage embryos are used for making chimeras, since they aren’t committed to helping a particular cell lineage and could possible make the inner cell mass or trophectoderm 4. If two diploid eight…

Embryonic Stem Cells, their implications for basic research, it normal biological phenomenon and how humans have manipulated it, how it is used and why it is so controversial in today’s society. Embryonic Stem Cells are derived from embryos at the developmental stage before the time that implantation would normally occur in the uterus. So they are not derived from eggs fertilized in the human body but from eggs that have been fertilized in vitro at an in vitro fertilization clinic, and then…

Some of the promise of stem cell therapy has been realized. A prime example is bone marrow transplantation. Even here, however, manyproblems remain to be solved. Challenges facing stem cell therapy include the following: Adult stem cells Tissue-specific stem cells in adult individuals tend to be rare. Furthermore, while they can regenerate themselves in an animal or person they are generally very difficult to grow and to expand in the laboratory. Because of this, it is difficult to obtain…