Posts Tagged Brain
Basic Medical Knowledge And Specialties
Within medicine, there are a number of specialties and subspecialties one can concentrate in. Before a doctor decides on a focus, they must learn the basic sciences of medicine. Basic knowledge is essential when moving forward in one’s studies, which is why doctors must attend four years of medical school before advancing to a specialty.
There are sixteen topics of introductory medical science. Anatomy, a subject often associated with doctors, is the study of the physical structures of humans. Histology is similar to anatomy, except with tissue instead of larger parts. Biochemistry and biostatistics are the applications of chemistry and statistics in a biological sense.
The study of individual cells is cytology, and genetics is studying the genes within cells. The nervous system has its own field called neuroscience, which comprises knowledge of the brain and spinal cord. Pharmacology and toxicology are both studies of drugs, except pharmacology focuses on the benefits of them while toxicology is about negative effects.
Other basic sciences include embryology, epidemiology, immunology, microbiology, nutrition, pathology, and physiology. General physicians need to have a background in all of these fields so they can appropriately refer patients to specialists.
Two broad categories exist in medicine; internal medicine and surgery. Internal medicine involves non-operative treatment of diseases and disorders through drugs and therapy. Surgery requires operative action, and is usually used in conjunction with some kind of internal medicine. Specialties branch out from both categories, while some are completely unrelated to either, such as radiology.
Cardiology is a specialty within internal medicine in which physicians concentrate on disorders related to the cardiovascular system. Subspecialties of cardiology focus on specific diseases, like coronary artery disease. In fact, most subspecialties of larger topics are dedicated to one disease.
Intensive care medicine is used with patients who are in immediate need of care or are in a life-threatening situation. Hepatology is concerned with the liver, and nephrology is concerned with the kidneys. Rheumatology involves treating joint problems, such as arthritis.
In addition to internal medicine specialties, several surgical specialties exist. Otolaryngology is surgery which comprises of head, neck, face, and certain cosmetic procedures. Surgical oncology is the use of surgery to combat cancer.
Vascular surgery involves peripheral blood vessels and the central nervous system, and cardiovascular surgery includes the heart and surrounding arteries. Transplantation is an important specialty, in which dysfunctional organs are replaced with optimal ones.
Besides the two main categories of internal medicine and surgery, a third class called diagnostic specialties exist. This type concerns itself not with curing diseases, but examining them. All laboratory sciences fall under diagnostic specialties. Cellular pathology is the study of diagnosing illnesses by utilizing samples of tissue or cells taken from patients.
Clinical microbiology involves in vitro diagnosis of diseases cause by fungi, viruses, parasites, and bacteria. Radiology is a widely known diagnostic specialty, which uses imaging technologies to diagnose and treat ailments.
Neurological disorders, which are not completely physical, require a different treatment approach than traditional diseases. Rehabilitation falls under neurology, as it is concerned with physical and mental healing after an injury or illness. Any disorder that involves the nervous system is neurological.
Therefore, all degenerative brain diseases, like Alzheimer’s, are dealt with in neurology. Neurologists can specialize in specific conditions, like stroke or sleep problems, after they have completed general neurology training.
Tags: Blood, Blood Vessel, Blood Vessels, Brain, Cosmetic Procedures, Kidney, Kidneys, Nutrition, Patients, Stroke, Therapy, VascularRelated posts
The Science Of Complementary Medicine
Recent Trends
Four out of ten Americans were using alternative-medicine and not telling their doctors(1). Chinese herbal medicine helped people with Irritable Bowel Syndrome(2). A ketogenic diet decreased intractable seizures in children(3) But according to other researches, Echinacea extracts did not prevent upper respiratory infections(4) and chiropractic manipulations did not improve episodic-tension-type headaches.(5)
These researches may have had their own flaws. But according to another article published in British Journal of Medicine, double standards exist in judging traditional and alternative medicine.6 In a conference in integrated medicine in London, Dr. Iain Chalmers said, “critics of complementary medicine seemed to operate a double standard”. It is thought that 60% of orthodox treatments have not been scientifically proved.(6)
In 1999, a series of articles was published in the British Medical Journal (BMJ) under the title-ABC of Complementary Medicine. Catherine Zollman and Andrew Vickers authored these articles. In an article in this series published in BMJ of 11 September 1999, the authors defined Complementary Medicine as “ …a group of therapeutic diagnostic disciplines that exist largely outside the institutions where conventional health care is taught and provided. Complementary medicine is an increasing feature of healthcare practice, but considerable confusion remains about what exactly it is and what position the disciplines included under this term should hold in relation to conventional medicine”.(7)
According to another article published in BMJ of 25 September 1999, an UK survey of use of Complementary medicine estimated that in1993, 33% of the population had used some form of Complementary medicine. 55-65% of those who consulted complementary practitioners were female, a similar proportion to users of conventional healthcare. The other highlights of this survey were:
- The highest users were those aged 35-60 years.
- Children made up a relatively small proportion of users of complementary medicine.
- Users of complementary medicine tended to be in higher socio-economic groups and had higher levels of education than users of conventional care.
More people used complementary medicine in the south of England than in Wales, Scotland and the north of England.But evidence suggested that this reflected access to availability of complementary practitioners rather than any fundamental regional differences in public attitude or interest.(8)
On acupuncture, the authors wrote: – “There is good research evidence that acupuncture has effects greater than placebo. Randomised trials have found that true acupuncture is more effective in relieving pain than ‘sham’ technique such as inserting needles away from true points.” “Studies showing that acupuncture can affect anaesthetised animals provides further evidence that its effects probably cannot be explained purely in psychological terms.”(9)
“The best known evidence about a herbal product concerns St. John’s wort (Hypericum perforatum) for treating mild to moderate depression. A systematic review of 23 randomised controlled trials found the herb to be significantly superior to placebo and therapeutically equivalent to, but with fewer side-effects than antidepressants such as amitryptyline.” “Eighty seven adults and children refractory to conventional first and second line treatment were randomised to a crossover study that compared a preparation of about 10 Chinese herbs with a placebo consisting of herbs thought to be ineffective for eczema. Highly significant reductions in eczema scores were associated with active treatment but not with placebo. At long term follow-up, over half of the adults (12/21) and over 75% of children (18/23) who continued had a greater than 90% reduction in eczema scores”.(10)
Studies on Homeopathy
An evidence of the efficacy of homeopathic medications was published in BMJ.
The paper was authored by Morag A Taylor and associates. It concluded that homeopathic dilutions differ from placebo. This study was done on fifty patients suffering with perennial allergic rhinitis. The results showed significant nasal airflow improvement compared with the placebo group(11). An earlier paper authored by Andrew Vickers and Catherine Zollman in BMJ quoted an article in Lancet in favour of homoeopathy. The authors of this article in Lancet were quoted as: – “ the results of our meta-analysis are not compatible with the hypothesis that the clinical effects of homoeopathy are due to placebo.” “Laboratory studies have reported biological effects of homeopathy medicines on animals, plants and cells, some at ultramolecular dilutions.”(12)
Mind-Body Connection in Modern Medicine
On another note, there are many researches published in journals of modern medicine that corroborate mind-body connection. Role of emotional distress and the origin of cardiac illnesses are an accepted fact in modern medicine. In a recent research conducted by Dr. Ketterer and colleagues from Henry Ford Health Sciences Center in Detroit, it was recommended that “chest pain should be considered a marker of emotional distress.” “Reducing emotional distress may benefit the (healthcare) system as well as the patient by spontaneously decreasing emergency room visits, diagnostic tests and hospital admissions.”(13)
A study done in the Cancer Institute of New Jersey by Dr. Pandya and associates concluded that conventional mind-body therapy has been poorer with valuable non-invasive way to manage coronary disease. Yoga practice is valuable in coronary disease by improving resistance to stress.(14)
People with diabetes are twice as likely as non-diabetics to suffer from depression, according to an analysis of 25 years of data authored by Dr. Patrick J. Lustman of Washington University School of Medicine in St. Louis. “Two of every three cases of depression in diabetes go untreated by primary care physicians”.(15) He recommends that both conditions need to be treated together.
In a study published in Digestive Diseases and Science authored by Dr. Svein Blomhoff of National Hospital, Oslo, it was demonstrated that there is a clear connection between mind and body. Emotional responses have an impact on intestinal reactivity in-patients with irritable bowel syndrome (IBS) and in normal controls.
“The close interaction among mind, brain and gut” indicates that “gut motility may be a dynamic indication of level of stress or emotional state.”(16)
Non-Physical Treatments
Psychotherapy is helpful for patients with intractable dyspepsia. One study was done by Dr. Elspeth Gutherei of the Manchester Royal Infirmary and was published in Gastroenterology in the year 2000.(17) In the same issue, Dr. David H. Alpers of Washington University School of Medicine, St. Louis, Missouri, advised gastroenterologists to pay attention to psychological diagnostic and therapeutic tools and to learn to apply them to patients in functional bowel disorders.
Results from some controlled trials of “distant healing” show that such forms are positively effective. A study by Dr. John A Astin and associates at Kernon Hospital Mansion, in Baltimore Maryland, concluded this finding. 23 trials including five trials of prayer, 11 studies of non-contact therapeutic touch and seven trials of mental healing and spiritual healing were studied.(18)
Conclusion
There is ample evidence in modern medical literature that suggests that there are links between physical illnesses and emotional and mental distress. Research evidence shows that there is learning involved in “observation.” Every “scientific” discovery starts with “observation.” The observation is then followed by “scientific research.”
Complementary therapies are following the same pattern of knowledge as modern medicine has followed. Practitioners can make themselves more aware of the scientific basis of medicine by reading and researching on modern medicine. Complementary medicine will need to become more scientific sooner rather than later.
Tags: Brain, Diabete, Diabetes, Diabetic, Diet, Eczema, Headache, Headaches, Health, Patients, TherapyRelated posts
Treating Depression With Depression Drugs
Chances are at some point in just about every person’s life, he or she will experience some form of what’s familiarly called “the blues.” The more formal clinical name is, of course, “depression” and treating depression with depression drugs can be called for under certain medically-necessary conditions. Here’s some background on it, the drugs and when they might be called for.
For the most part, classic depression is generally chronic in nature. That means that the most success in treating it is gained when a steady treatment regimen, with follow-up and assessment, is instituted. There are a wide variety of factors which can create depression in people. Some of these are divorce, death of a loved one or experiencing a serious illness. Sometimes, though, no apparent cause is present.
Additionally, certain classes of prescription drugs that have been designed to treat other medical illnesses may create depression as a side effect, so keep that in mind when being treated for certain medical ailments. Generally, it’s always a good idea to check with the doctor or pharmacist about any interactions or side effects of a drug before beginning on it.
The good news in all this is that depression brought on by events or even as the result of a chemical imbalance within the brain is a highly treatable condition. Chances are if you’re the victim of depression and you follow your doctor’s treatment regimen, you’ll soon experience a complete abatement of most if not all symptoms.
New insights into treating depression with depression drugs reveals that antidepressant drugs such as Zoloft or Prozac work best when combined with concerted attempts at psychiatric or psychological counseling on an ongoing and regular basis. And people on such medicines should never stop taking the drugs without the express permission of their physician, even if they feel like they’re cured.
There are different classes of depression drugs, and none should be taken without a prescription. Many can negatively affect a person who has no need of them, and sometimes these effects can be serious or even fatal. In the end, people need to recognize that depression isn’t a stigma and that it can be treated successfully in almost every case, so take heart in knowing that.
Tags: BrainRelated posts