Showing posts with label :: kesihatan ::. Show all posts
Showing posts with label :: kesihatan ::. Show all posts

Wednesday, June 23, 2010

:: scoliosis ::

Scoliosis (from Greek: skoliōsis meaning "crooked condition," from skolios, "crooked")[1] is a medical condition in which a person's spine is curved from side to side. Although it is a complex three-dimensional deformity, on an x-ray, viewed from the rear, the spine of an individual with a typical scoliosis may look more like an "S" or a "C" than a straight line. It is typically classified as either congenital (caused by vertebral anomalies present at birth), idiopathic (cause unknown, sub-classified as infantile, juvenile, adolescent, or adult according to when onset occurred) or neuromuscular (having developed as a secondary symptom of another condition, such as spina bifida, cerebral palsy, spinal muscular atrophy or physical trauma)
The signs of scoliosis can include:
  • Uneven musculature on one side of the spine
  • A rib prominence and/or a prominent shoulder blade, caused by rotation of the ribcage in thoracic scoliosis
  • Uneven hips / leg lengths
  • Asymmetric size or location of breast in females
  • Slow nerve action (in some cases)

Associated conditions

Scoliosis is sometimes associated with other conditions such as Ehler-Danlos syndrome (hyperflexibility, 'floppy baby' syndrome, and other variants of the condition), Charcot-Marie-Tooth, Prader-Willi syndrome, kyphosis, cerebral palsy, spinal muscular atrophy, muscular dystrophy, familial dysautonomia, CHARGE syndrome, Friedreich's ataxia, proteus syndrome, spina bifida, Marfan's syndrome, neurofibromatosis, connective tissue disorders, congenital diaphragmatic hernia, and craniospinal axis disorders (e.g., syringomyelia, mitral valve prolapse, Arnold-Chiari malformation).

Cause

In the case of the most common form of scoliosis, adolescent idiopathic scoliosis, there is no clear causal agent and it is generally believed to be multifactorial. Genetics are believed to play a role. Various causes have been implicated, but none have consensus among scientists as the cause of scoliosis, though the role of genetic factors in the development of this condition is widely accepted.
Scoliosis is more often diagnosed in females. In some cases, scoliosis exists at birth due to a congenital vertebral anomaly. Occasionally, development of scoliosis during adolescence is due to an underlying anomaly such as a tethered spinal cord, but most often the cause is unknown or idiopathic, having been inherited through multiple factors, including genetics.[5] Scoliosis often presents itself, or worsens, during the adolescence growth spurt.
In April 2007, researchers at Texas Scottish Rite Hospital for Children[6] identified the first gene associated with idiopathic scoliosis, CHD7. The medical breakthrough was the result of a 10-year study and is outlined in the May 2007 issue of the American Journal of Human Genetics.[7] and is often performed on school students.) If a prominence is noted, then scoliosis is a possibility and the patient should be sent for an X-ray to confirm the diagnosis. Alternatively, a scoliometer may be used to diagnose the condition.[8] The patient's gait is assessed, and there is an exam for signs of other abnormalities (e.g., spina bifida as evidenced by a dimple, hairy patch, lipoma, or hemangioma). A thorough neurological examination is also performed.
It is usual, when scoliosis is suspected, to arrange for weight-bearing full-spine AP/coronal (front-back view) and lateral/sagittal (side view) X-rays to be taken, to assess the scoliosis curves and the kyphosis and lordosis, as these can also be affected in individuals with scoliosis. Full-length standing spine X-rays are the standard method for evaluating the severity and progression of the scoliosis, and whether it is congenital or idiopathic in nature. In growing individuals, serial radiographs are obtained at 3-12 month intervals to follow curve progression. In some instances, MRI investigation is warranted to look at the spinal cord.
The standard method for assessing the curvature quantitatively is measurement of the Cobb angle. The Cobb angle is the angle between two lines, drawn perpendicular to the upper endplate of the uppermost vertebrae involved and the lower endplate of the lowest vertebrae involved. For patients who have two curves, Cobb angles are followed for both curves. In some patients, lateral bending X-rays are obtained to assess the flexibility of the curves or the primary and compensatory curves.

Genetic testing

Genetic testing for AIS, which has become available in 2009 and is still under investigation, attempts to gauge the likelihood of curve progression.
Through a genome-wide association study, geneticists have identified single nucleotide polymorphism markers in the DNA that are significantly associated with adolescent idiopathic scoliosis. Fifty-three genetic markers have been identified. Scoliosis has been described as a biomechanical deformity, the progression of which is dependent on asymmetric forces otherwise known as the Heuter-Volkmann law.

Wednesday, June 2, 2010

:: interesting fact about longevity ::

  • japan has the longest life expectancy in the world. yet people in the Okinawan island in southern Japan enjoy even longer and healthier lives than the average japanese. their diet secret? lots of grain, vegetables, soy and fish, less meat, poultry and dairy. there is, however no scientific basis to the suggestion by some supplement manufacturer that "coral calcium" is the secret of Okinawans logevity.
  • various studies in Mermons, Seventh-Day Adventists and Trappist monks, all people who follow vegetarian diet and engage in prudent lifestyle also show that they enjoy increased life expectancy.
  • North American also seems to be doing something right since they are healthier than they were two decades ago, people over age 85 are one of the fastest growing segments of the  population, proving that today you can live longer and healthier if you practice good health habits.
with increasing age, the body is less efficient in absorbing and using some nutrients; osteoporosis and other medical conditions common among older people also change nutritional needs. consequently, an older person is likely to need extra amounts of the following essential nutrition.
  • calcium to prevent osteoporosis and maintain healthy bones
  • vitamins D, which the body need in order to help absorbing of calcium.
  • vitamin B12 to build red blood cells and maintain healthy nerves.
  • zinc to help compensate for lowered immunity due to aging.
  • potassium, especially in the presence of high blood presure ot the use of diuretic drugs.
  • folic acid, B vitamin, which the body use to make a DNA and red blood cells, may also help to lower blood levels of homocysteine, a compound in the blood that has been associated with increased risk of heart disease.
  • fiber to prevent constipation.

Friday, May 14, 2010

:: ANOREXIA NERVOSA ::

younger women are particularly vulnerable to eating disoders like anorexia nervosa, a serious, often chronic and life threatening condition. although the term of anorexia literally means loss of appetite, people with anorexia nervosa actually ignore hunger and deliberately control their desire to not eat. constant obsessive dieting may result severe anorexia and suffers may be at risk of death from starvation.
should someone you know exhibit the following warning signs, contact a doctor knowlegable about eating disorder immediately. 
  • preocupation with food
  • distorted with body image, thingking they are fat!even they are acctually bone-thin!
  • intense fear of gaining weight
  • refuse to eat
  • deliberate self starvation
  • denial of hunger
  • obsessive of exercise
  • lost of scalp hair
  • brittle nails and hairs
  • constant complaining of feeling cold
    (due to low body temperature)
  • a fine layer of hair on face and body 
  • depression
  • irregular or absent periods.