Illustration: 4 to 12 weeks the developing embryo can provide rich in stem cells. At present, research on embryonic stem cells and not the implementation, because the acquisition of such cells is very difficult, and the abortion embryos for medical research involving ethical issues. There are many tissue-specific stem cells, neural stem cells, for example, have been found in embryonic tissues. Umbilical cord stem cells to hematopoietic stem cells, in the placenta and the umbilical cord. In many parts of the body, such as skin, liver and brain, there are tissue specific stem cells, namely adult stem cells. These stem cells can update and replace the aging of cells. Normally, adult stem cells can differentiate into specific types of somatic cells, but studies have shown that bone marrow cells can form other kinds of cells, such as chondrocytes, and even the myocardial cells. Cloning, has been used to create Dolly the sheep, is another way to obtain stem cells. Cloning is the body cells, such as skin cells, transplanted to the removal of the nucleus of the egg cell, then the proper treatment, will be a cloned embryo, the embryo is a replica of the original cells, stem cells and progenitor cells provider. This can be avoided from others obtain stem cells produced by treatment of rejection when. This process is called "therapeutic cloning", unlike "reproductive cloning". "Reproductive cloning" aims to from the embryoCreate whole new individual. Reproductive cloning of human beings is banned in most countries, but the study on therapeutic cloning has a long way to go. Because of lack of personnel of human egg cells, and the use of animal eggs for such research will involve ethical problems.
Susan Aldrich, an experienced freelancer, received his Ph.D. in 1978 1990 by the University of London organic chemistry, biotechnology professional degree of master of science. She has many years of experience in education and medical research field, since 1989 engaged in scientific writing, writing for medical and scientific journal. Susan Aldrich served as BBC "focus magazine" full-time editor and medical editor, recently published works include "addiction" in the brain.
For a long time, medicine has always been considered to be one of the most noble of human occupation. Long before we did not know the cell, tissue and organ complex and subtle role, humans began to explore the healing, alleviate the suffering of patients. Groundbreaking character book introduces 50 famous scholars, introduces their life and their contribution to human. Galen, Hippocrates, Avicenna, William Harvey, Luis Basudeb, Robert Koch, some of these ancient medical records data show, is their experience and knowledge has laid the foundation of modern medicine, so that we understand that the relationship between health and disease. They note describes the usage and surgical techniques of herbal medicine. Their work inspired medical colleagues to further explore the mysteries of the human body, the body signs and healthy physical condition. Because of the scientific research methods, the medical field has made great achievements, such as the early seventeenth Century, William Harvey put forward has milepost sense blood circulation said. Afterwards, Luis Basudeb and Robert Koch found the most important source of infection bacteria and some diseases (such as cholera bacteria), created the germ theory. They found that brings a revolution of disease. William Visselin found the foxglove, Alexander Fleming discovered penicillin saved millions of lives, and digitalis and penicillin is still the main drugs to mend his ways to save him. Today, many diseases have a medicine, including a cure for cancer, heart disease and stroke, and these diseases are incurable before. Operation was a throw the helve after the hatchet treatment. If the patient had died on the operation table, postoperative infection is likely to take his life. The discovery of possible operation. The twentieth Century surgeon (such as Alfred Blalock) achievements opened a new era in the Department of thoracic surgery.
The ancient medical herbalism Galen Yim Hotapsipocrates Hua Tuo reitzes Avicenna human research Andre Vissarriwilliam Havigiovanni Batis Morgagni Claude Bernaderudolf Weilhenry Grivilm Conrad Renchenkal Landsteiner cell gene revolution Oswald Afrifrancis Collins disease epidemiology and global epidemic of Edward Jenna Rene Theophile Heisint Renek John Snolouis Basderobert Koch Ali Gurifrederick Bantingalfred Blalock and Helen Tausigachi Corcoranaustin Bradford Hill of Bacteriology, stem cells and cloning Luc Montani pharmacy master Paracelsuswilliam Visselin William Modun homeopathic Paul E Lysifelix Hovmanalexander Flemingphilip Showalter Hench animal experiment Carle Gerasijames Black medical expert Albucassistomas Sydenhampercival Portjohn Hunt Joseph List Flo organ transplantation Lons Namdingelwilliam Ostlesigmond Floydemil Krepelinjarvi Kuhinmari J Teptomas Stazapatrick Steptoe Sicily Sanders @##@ euthanasia and hospice "The little book of big ideas" in "medical" words traced the medical history of two thousand years, the most influential medical achievements and characters. The words "medical" included the founder of 50 medical history, describes their life and their contribution to human. Open the book, you can see the development of the world medical trajectory. Ancestors of the medical thought, research, medical discoveries and contributions to modern medicine; you can see the medical breakthroughs to dramatic changes in our life. Anatomy, disease, medical invention as shit saved countless lives. The medical field has some inventions and discoveries in the history also aroused controversy, such as euthanasia, stem cell research, cloning, animal research and organ transplantation. From Avi Sena to Francis Collins and Karl Jarosi and the words "medical", selected characters are the medical profession pioneer, is the founder of the field of the medical profession. All for the twenty-first Century medical what they do to lay a solid foundation.
The words "medical": from yimuhetaipu to Alexander Fleming, from Galen to Luis Basudeb, "the little book of big ideas" in "words" introduces the medicine 50 medicine figures is the greatest in the world and the field in the 10 most important events. The words "medical" strong knowledge, skilled in content, wide range, from clone to organ transplantation, the germ theory and genetics, tells the story of major events in the medical profession has milepost sense, the pioneer and achievement in medical field. The words "medical" brings together the wisdom and the essence of the medical profession, is a rare medical history collection. The search for modern scientific footprint, gather the crystallization of human wisdom.
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