The Problem of Dense Breast Tissue
– There are several confusing topics for women when it comes to their breast health such as how often they should be screened with a mammogram, what age to start getting their mammograms, or how often they should have a mammogram. One of the newer discussions that has emerged recently is if women should be told that they have dense breast tissue. Several states have even moved a step further and are mandating that women be told this information. I believe that the states should go beyond this when passing the law and require insurance companies to pay for supplemental testing of these women who fall into this category and have additional risk factors….
New Tissue Engineered Bone
– 1.1 Regenerative Medicine 1.1.1 Tissue Engineering Tissue engineering uses natural biology principles and engineering to develop materials that can be used to restore, maintain, improve or enhance natural regeneration of tissue function. Tissue engineering is a potential solution to help increase the length of life, alleviate the current shortage of donor tissue. On average, 2.2 million annual bone grafting procedures are carried out globally, with most using biological autograph tissue (Malak and Anderson, 2008)….
Taking a Look at Tissue Engineering
– Tissue engineering opened a widespread context of studies which performed about three dimensional (3D) cell cultures via imitating the extracellular matrix (ECM) topography to design the scaffolds [1,2,3]. Nanofiber scaffolds have porous structure with large surface area which mimic the natural microenvironment of ECM; the blends regulate the cell nutrition, proliferation, attachment and differentiation [4,5]. Among the material choices to fabricate scaffold, Poly (l-lactide) acid (PLLA) and poly (?-caprolactone) (PCL) have extensive use due to their numerous advantages of biodegradability, easy access and application, mechanical properties and biocompatibility [6,7]….
Advancements in Tissue Engineering
– Advancements in tissue engineering have introduced a number of promising methods to repair large bone defects. Technology used, to date, in such efforts have involved autografts and allografts. These methods have severe limitations and associated risks and have, thus, fueled research efforts to find more efficient methods of healing. Tissue engineering uses methodology from materials engineering and life sciences to design replacement devices with similar morphology and function for injured tissues leading to tissue repair….
Stem Cells a.k.a. Mother Cells have the Ability to Replenish Tissue and Regenerate Organs
– … After approximately four days the blastocyst, which has an inner mass cell and makes the embryo, is formed. Pluripotent cells begin forming from the blastocyst’s embryoblast. These cells are similar to totipotent cells in the way that they can also generate any human cell. Unlike totipotent cells, pluripotent cells cannot differentiate into cells found in the placenta that are needed to develop a fetus, making it impossible for them to generate a whole organism. Pluripotent cells can differentiate in vitro into ectoderm, endoderm and mesoderm cells, which are the primary germ layers….