Contents 1 Overview 2 Molecular biology 3 Biochemistry 4 See also 5 References 6 External links


Overview[edit] Medical biology[7] is the cornerstone of modern health care and laboratory diagnostics. It concerns a wide range of scientific and technological approaches: from an in vitro diagnostics[8][9] to the in vitro fertilisation,[10] from the molecular mechanisms of a cystic fibrosis to the population dynamics of the HIV virus, from the understanding molecular interactions to the study of the carcinogenesis,[11] from a single-nucleotide polymorphism (SNP) to the gene therapy. Medical biology based on molecular biology combines all issues of developing molecular medicine[12] into large-scale structural and functional relationships of the human genome, transcriptome, proteome, physiome and metabolome with the particular point of view of devising new technologies for prediction, diagnosis and therapy [13] Biomedicine involves the study of (patho-) physiological processes with methods from biology and physiology. Approaches range from understanding molecular interactions to the study of the consequences at the in vivo level. These processes are studied with the particular point of view of devising new strategies for diagnosis and therapy.[14][15] Depending on the severity of the disease, biomedicine pinpoints a problem within a patient and fixes the problem through medical intervention. Medicine focuses on curing diseases rather than improving one's health.[16]


Molecular biology[edit] Main article: molecular biology Molecular biology is the process of synthesis and regulation of a cell’s DNA, RNA, and protein. Molecular biology consists of different techniques including Polymerase chain reaction, Gel electrophoresis, and macromolecule blotting to manipulate DNA. Polymerase chain reaction is done by placing a mixture of the desired DNA, DNA polymerase, primers, and nucleotide bases into a machine. The machine heats up and cools down at various temperatures to break the hydrogen bonds binding the DNA and allows the nucleotide bases to be added onto the two DNA templates after it has been separated.[17] Gel electrophoresis is a technique used to identify similar DNA between two unknown samples of DNA. This process is done by first preparing an agarose gel. This jelly-like sheet will have wells for DNA to be poured into. An electric current is applied so that the DNA, which is negatively charged due to its phosphate groups is attracted to the positive electrode. Different rows of DNA will move at different speeds because some DNA pieces are larger than others. Thus if two DNA samples show a similar pattern on the gel electrophoresis, one can tell that these DNA samples match.[18] Macromolecule blotting is a process performed after gel electrophoresis. An alkaline solution is prepared in a container. A sponge is placed into the solution and an agaros gel is placed on top of the sponge. Next, nitrocellulose paper is placed on top of the agarose gel and a paper towels are added on top of the nitrocellulose paper to apply pressure. The alkaline solution is drawn upwards towards the paper towel. During this process, the DNA denatures in the alkaline solution and is carried upwards to the nitrocellulose paper. The paper is then placed into a plastic bag and filled with a solution full of the DNA fragments, called the probe, found in the desired sample of DNA. The probes anneal to the complementary DNA of the bands already found on the nitrocellulose sample. Afterwards, probes are washed off and the only ones present are the ones that have annealed to complementary DNA on the paper. Next the paper is stuck onto an x ray film. The radioactivity of the probes creates black bands on the film, called an autoradiograph. As a result, only similar patterns of DNA to that of the probe are present on the film. This allows us the compare similar DNA sequences of multiple DNA samples. The overall process results in a precise reading of similarities in both similar and different DNA sample.[19]


Biochemistry[edit] Main article: biochemistry Biochemistry is the science of the chemical processes which takes place within living organisms. Living organisms need essential elements to survive, consisting of carbon, hydrogen, nitrogen, oxygen, calcium, and phosphorus. These elements make up the four big macromolecules that living organisms need to survive- carbohydrates, lipids, proteins, and nucleic acids.[20] Carbohydrates, made up of carbon, hydrogen, and oxygen, are energy storing molecules. The simplest one of carbohydrates is glucose, C6H12O6, is used in cellular respiration to produce ATP, adenosine triphosphate, which supplies cells with energy.[20] Proteins are chains of amino acids that function to contract skeletal muscle, function catalysts, transport molecules, and storage molecules. Proteins can facilitate biochemical processes, by lowering the activation energy of a reaction. Hemoglobins are also proteins, that carry oxygen to the cells in an organisms body.[20] Lipids, also known as fats, also serve to store energy, but in the long term. Due to their unique structure, lipids provide more than twice the amount of energy that carbohydrates do. Lipids can be used as insulation, as it is present below the layer of skin in living organisms. Moreover, lipids can be used in hormone production to maintain a healthy hormonal balance and provide structure to your cell walls.[20] Nucleic acids are used to store DNA in every living organism. The two types of nucleic acids are DNA and RNA. DNA is the main genetic information storing substance found oftentimes in the nucleus, which controls the processes that the cell undergoes. DNA consists of two complimentary antiparallel strands consisting varying patterns of nucleotides. RNA is a single strand of DNA, which is transcribed from DNA and used for DNA translation, which is the process for making proteins out of RNA sequences.[20]


See also[edit] Cardiophysics Laboratory diagnostics Medicinal chemistry Medical physics The Cancer Genome Atlas[21] The Convention on Human Rights and Biomedicine The Human Genome Project[22][23] The Human Physiome Project


References[edit] ^ "biomedicine (applies biological, physiological) – Memidex dictionary/thesaurus". memidex.com. 2012-10-08. Retrieved 2012-10-20.  ^ "biomedicine – The Free Dictionary". 2013. Retrieved 2013-05-15.  ^ Medicine's paradigm shift: An opportunity for psychologyBy Dr. Suzanne Bennett Johnson, APA PresidentSeptember 2012, Vol 43, No. 8Print version: page 5, [1] ^ "Do biomedical models of illness make for good healthcare systems?". BMJ. 329 (09 December 2004). 2004. doi:10.1136/bmj.329.7479.1398. PMID 15591570.  ^ George L. Engel (1977). "The Need for a New Medical Model: A Challenge for Biomedicine" (PDF). Science. 196 (4286 (Apr. 8, 1977)): 129–136,.  ^ Vital Notes for Nurses: Principles of Care By Hilary Lloyd, Helen Hancock, Steven Campbell, p. 6, [2] ^ Principles of Medical Biology ^ In vitro diagnostics ^ In vitro Diagnostics – EDMA Archived November 11, 2013, at the Wayback Machine. ^ In vitro fertilization ^ Master A, Wójcicka A, Piekiełko-Witkowska A, Bogusławska J, Popławski P, Tański Z, Darras VM, Williams GR, Nauman A. "Untranslated regions of thyroid hormone receptor beta 1 mRNA are impaired in human clear cell renal cell carcinoma". Biochim Biophys Acta. 1802: 995–1005. doi:10.1016/j.bbadis.2010.07.025. PMID 20691260.  ^ Molecular medicine – magazine ^ Gene Therapy – New Challenges Ahead ^ "University of Würzburg Graduate Schools: Biomedicine". graduateschools.uni-wuerzburg.de. 2011-10-14. Archived from the original on 2012-07-16. Retrieved 2012-10-20.  ^ Monocolonal Antibodies to Migraine: Witnesses to Modern Biomediceine, An A-Z: Ed. E M Jones and E M Tansey. Publisher Queen mary University, University of London, 2014 ^ Greenhalgh. UNDER THE MEDICAL GAZE. California Digital Library. p. 84. ISBN 978-1-59734-971-0.  ^ "Polymerase chain reaction".  ^ "Gel electrophoresis".  ^ "Southern blot".  ^ a b c d e Schopf, J. William. Life's Origin. University of California Press. ISBN 978-0-520-23391-1.  ^ The Cancer Genome Atlas – projekt opracowania atlasu genomu raka ^ Human Genome Project ^ Human Genome Organization


External links[edit] Look up biomedicine in Wiktionary, the free dictionary. Institute of Medical Biology in Singapore Medical Biology at the University of Amsterdam Medical Biology at the University of Warmia and Mazury Molecular Medicine and Gene Therapy at Lund University Clinical and Translational Science, a Wiley journal Molecular Medicine, a Feinstein Institute journal v t e Medicine Outline History Specialties and subspecialties Surgery Cardiac surgery Cardiothoracic surgery Colorectal surgery Eye surgery General surgery Neurosurgery Oral and maxillofacial surgery Orthopedic surgery Hand surgery Otolaryngology (ENT) Pediatric surgery Plastic surgery Reproductive surgery Surgical oncology Thoracic surgery Transplant surgery Trauma surgery Urology Andrology Vascular surgery Internal medicine Allergy / Immunology Angiology Cardiology Endocrinology Gastroenterology Hepatology Geriatrics Hematology Hospital medicine Infectious disease Nephrology Oncology Pulmonology Rheumatology Obstetrics and gynaecology Gynaecology Gynecologic oncology Maternal–fetal medicine Obstetrics Reproductive endocrinology and infertility Urogynecology Diagnostic Radiology Interventional radiology Nuclear medicine Pathology Anatomical pathology Clinical pathology Clinical chemistry Clinical immunology Cytopathology Medical microbiology Transfusion medicine Other specialties Addiction medicine Adolescent medicine Anesthesiology Dermatology Disaster medicine Diving medicine Emergency medicine Mass-gathering medicine Family medicine General practice Hospital medicine Intensive-care medicine Medical genetics Neurology Clinical neurophysiology Occupational medicine Ophthalmology Oral medicine Pain management Palliative care Pediatrics Neonatology Physical medicine and rehabilitation (PM&R) Preventive medicine Psychiatry Public health Radiation oncology Reproductive medicine Sexual medicine Sleep medicine Sports medicine Transplantation medicine Tropical medicine Travel medicine Venereology Medical education Medical school Bachelor of Medicine, Bachelor of Surgery Bachelor of Medical Sciences Master of Medicine Master of Surgery Doctor of Medicine Doctor of Osteopathic Medicine MD–PhD Related topics Allied health Dentistry Podiatry Physiotherapy Nanomedicine Molecular oncology Personalized medicine Veterinary medicine Physician Chief physician History of medicine Book Retrieved from "https://en.wikipedia.org/w/index.php?title=Biomedicine&oldid=810147137" Categories: BiomedicineBranches of biologyVeterinary medicineHidden categories: Webarchive template wayback linksPages using div col without cols and colwidth parametersPages using Columns-list with deprecated parameters


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