November 21st, 2014
Amyotrophic lateral sclerosis (ALS) or Lou Gehrig’s disease is a neurodegenerative disorder with various causes. The term motor neurone disease (MND) is sometimes used interchangeably with ALS, while others use it to refers to a group of similar conditions that include ALS.
ALS is characterised by muscle spasticity, rapidly progressive weakness due to muscle wasting. This results in difficulty speaking, swallowing, and breathing. The disease usually starts around the age of 60, except in cases that are directly inherited when the usual age of onset is around 50.
November 20th, 2014
The three cardinal signs of Parkinson’s disease are resting tremor, rigidity and bradykinesia. Of these, two are essential for diagnosis.
Postural instability is the fourth cardinal sign, but it occurs late, usually after 8 years of disease evolution.
– In 70% of cases, uncontrollable rhythmic gestures of the hands, head or feet is the first symptom and occurs mainly at rest and during periods of stress. Tremor is diminished during movements, disappears during sleep and is enhanced by stress and fatigue. Tremor becomes less evident as the disease progresses.
November 19th, 2014
Laryngeal cancer may also be called cancer of the larynx or laryngeal carcinoma. Most laryngeal cancers are squamous cell carcinomas, reflecting their origin from the squamous cells which form the majority of the laryngeal epithelium.
Cancer can develop in any part of the larynx, but the cure rate is affected by the location of the tumor. For the purposes of tumor staging, the larynx is divided into three anatomical regions: the glottis (true vocal cords, anterior and posterior commissures); the supraglottis (epiglottis, arytenoids and aryepiglottic folds, and false cords) and the subglottis.
Most laryngeal cancers originate in the glottis.
November 18th, 2014
Osteopenia and osteoporosis are both conditions of decreased bone density. The difference between osteopenia and osteoporosis lies in the degree of severity.
Osteopenia is defined as significant loss of bone mass. Generally, no symptoms are associated with osteopenia. A diagnosis of osteopenia is important mainly because people who have osteopenia are at risk of develop osteoporosis in the future if their bone loss continues to worsen.
Osteoporosis is a disease where the bones have become significantly brittle so that people in this group are at very high risk for debilitating bone fractures such as hip fractures and compression fractures of the bones in the spine called vertebrae.
This is a preview of
What is the Difference between Osteopenia and Osteoporosis?
. Read the full post (742 words, 4 images, estimated 2:58 mins reading time)
November 17th, 2014
The terms uterine cancer and womb cancer may refer to any of several different types of cancer which occur in the uterus, namely:
Endometrial carcinomas originate from cells in the glands of the endometrium (uterine lining). These include the common and readily treatable well-differentiated endometrioid adenocarcinoma, as well as the more aggressive uterine papillary serous carcinoma and uterine clear-cell carcinoma.
Endometrial stromal sarcomas originate from the connective tissues of the endometrium, and are far less common than endometrial carcinomas.
November 16th, 2014
Muscular dystrophy is not a single disease, it is a combination of diseases affecting muscles and destroying them progressively. These disorders differ from each other in the muscle attacked initially, progression of disease and their pattern of inheritance.
The characteristic of the disease is weakness of skeletal muscles, due to defects in the formation of muscle proteins ultimately leading to death of cells and tissues of the muscles.
There is progressive spread of the disease that usually results, at some point, in death of the patient.
Muscular dystrophies are inherited disorders. The pattern of inheritance varies with the type of dystrophy.
This is a preview of
What Causes Muscular Dystrophy to be So Devastating?
. Read the full post (800 words, 4 images, estimated 3:12 mins reading time)
November 15th, 2014
Cirrhosis is a result of advanced liver disease. It is characterized by replacement of liver tissue by fibrosis (scar tissue) and regenerative nodules (lumps that occur due to attempted repair of damaged tissue).
These changes lead to loss of liver function. Cirrhosis is most commonly caused by alcoholism, hepatitis B and hepatitis C, and fatty liver disease, but has many other possible causes. Some cases are idiopathic (of unknown cause).
This is a preview of
Why is Cirrhosis a Potentially Life-Threatening Illness?
. Read the full post (3630 words, 4 images, estimated 14:31 mins reading time)
November 14th, 2014
Multiple sclerosis is an autoimmune disease where the immune system attacks the Myelin which is the covering that surrounds the spinal cord.
The myelin provides insulation for the nerves coming from the spinal cord, and it helps the conduction of impulses along the nerves.
In MS, inflammation destroys the myelin causing the nerve impulses to slow down and degenerate. This can cause a person to have difficulties in walking, talking, and can affect their vision and many other important functions.
There are 5 different multiple sclerosis types that patients can have, the most common forms are:
November 13th, 2014
Carpal tunnel syndrome (CTS) is a median entrapment neuropathy that causes paresthesia, pain, numbness, and other symptoms in the distribution of the median nerve due to its compression at the wrist in the carpal tunnel.
The mechanism is not completely understood but can be considered compression of the median nerve traveling through the carpal tunnel. It appears to be caused by a combination of genetic and environmental factors. Some of the predisposing factors include: diabetes, obesity, pregnancy, hypothyroidism, and heavy manual work or work with vibrating tools.
November 12th, 2014
Seventy percent of women approaching menopause experience menopausal symptoms. The most common includes hot flashes or night sweats.
Almost all women who are approaching 40 notice early symptoms while still having their periods. These symptoms usually last for the whole menopause transition which usually lasts until mid 50’s.
Hot and Cold Flashes
Eighty-five percent of American women are expected to experience hot flashes when they’re in menopause. Hot flashes are a sudden sensation of warmth or heat that spreads over the body which results in redness, specifically noticeable on the face and upper body.