01/19/2012

Depression - More Than A Mood

 

All of us have our ups and downs - days when we feel on top of the world, others when we feel "low."

But depression is another matter. It's a chronic change of mood and a drawn out lowering of the spirits. It can be triggered by a loss - of a loved one, money, or job. Such a depression is called "exogenous," meaning it comes from outside.

 

But there's another common type of depression. Suddenly a person decides he or she is a failure in life. Self-confidence and self-esteem vanish. Ordinary everyday problems seem too much to cope with. This is "endogenous" depression - coming from within, perhaps as the result of some body chemical upset.

Many authorities believe depressions often are both endogenous and exogenous. Some argue there has to be an endogenous or internal factor, otherwise a death in the family or being victimised by a sociopath would lead only to temporary normal sadness.

When depression does occur, it isn't limited to the mind. There is a general lowering of vitality.

In one study Johns Hopkins University investigators' were able to show that depressed people can be harder hit when common illnesses strike. They gave a bipolar test to a group of employees at Fort Detrick, Md. The following winter, when flu broke out and many of the employees were affected, those who had been found mildly depressed took three weeks or longer to recover. Others were over their flu in three to 14 days.

Some medical doctors believe depression may open the door for other illnesses. Doctors have noted that many people become sick for the first time, or begin to suffer from some chronic disorder, or decide to undergo surgery when they are depressed.

Actually, even when depression is the result of illness, doctors have discovered that treating the depression may help to treat the illness successfully. Antidepressant drugs, for instance, seem to help in rheumatoid arthritis and chronic ulcerative colitis in cases in which depression is present.

Some doctors have used the drugs on asthma and eczema patients who have failed to benefit adequately from usual treatment and who were found to be depressed. Of 113 persons tested, 89 showed improvement. At the Neuro-psychiatric Institute of the University of California, Los Angeles, physicians tried antidepressant drug treatment used on patients with shaking palsy, or Parkinson's disease. These persons hadn't been able to dress, cook or keep themselves clean-and were depressed as well. After three weeks, almost 90 per cent could care for themselves. Some could even do simple jobs.

07:59 Posted in Science | Permalink | Comments (0) | Email this

12/11/2011

Low Fat Diet, Cholesterol & Triglycerides Outcomes

Generally the notion is that limiting the quantity of fats in the diet to 10% is the correct way to go for lowering cholesterol levels. This notion is being countered by many health care specialists, the reasoning being for it is that following this type of diet for a long time is practically impossible, and it is more so impossible because the majority of people suffering from high cholesterol have to pretty much stay on diet indefinitely. For this reason many recommend to limit fat intake to 30%, which is practically more doable and reasonable to achieve long-term sustainable results. The key is staying absolutely away from saturated fats as much as possible, and getting the fats elsewhere.


Another drawback for a very low fat intake, more particularly fat intake that is less than 25%, is that this type of diet can lower HDL cholesterol and increase triglycerides, both of which are undesirable effects for persons cardiovascular health. The situation can get even more tricky for people who already have low HDL cholesterol levels. HDL-cholesterol in essential for carrying bad cholesterol out of artery walls, and having high HDL cholesterol levels generally results in lower risk of heart attack and better cardiovascular health. LPL cholesterol on the other hand is the one that forms the plague in arteries, which can later rapture and become a cause for heart attack.


For the reason mentioned above good to have mono unsaturated & polyunsaturated fats in your diet if you are HDL-cholesterol is already low. These can be found in olives, corn, nuts, soybean oils, canola etc.


Triglycerides are basically most of the fat in our diet and most of the fat that circulates in our blood as well. Combined with cholesterol triglycerides help the formation of plague. High amount of sugar and alcohol in diet raises triglycerides levels significantly, this includes sugars from natural sources, like honey and fruit. To lower triglycerides levels candy, pastries, pasta, soft drinks, white bread, fruit juices, alcohol and products like need to be avoided. In addition smokers and those who are overweight need to seriously consider, big surprise, quitting smoking and losing weight. High amount of omega-3 can help as well, however, the amount necessary cannot usually be obtained from natural sources. Moderate exercise has shown to have a great effect on lowering triglycerides in many studies, however, the effects of exercise on cholesterol lowering and triglycerides has shown some questionable results in some studies. Generally it seems like exercise can be much more effective in lowering triglycerides than in fighting LDL cholesterol or improving HDL-cholesterol. One thing is for sure that for years exercise has shown to improve individual's cardiovascular health in many ways, and just because some studies test numbers show some results that scientists cannot exactly explain doesn't really mean anything. Exercise is a great treatment for cardiovascular health, period.


The optimal triglycerides levels are below 150 mg/dL, however for people with cardiovascular problems it's optimal to stay below 100.

08:05 Posted in Science | Permalink | Comments (0) | Email this

10/24/2011

Tricuspid Regurgitation

 Tricuspid Regurgitation is a condition of the heart in which tricuspid valve does not shut correctly, which causes blood to leak into the atrium of the heart when the ventricle narrows. The right ventricle is estranged from right atrium via the tricuspid valve. Tricuspid regurgitation inflicts just 4 out of 100,000 people. It is generally seen in people with a kind of congenital heart disease referred to as Ebstein's anomaly.

The most common cause of tricuspid regurgitation is inflammation of the right ventricle. Enlargement may be related to any ailment that leads to failure of the right ventricle. Mitral regurgitation and mitral stenosis may also lead to or worsen the symptoms of tricuspid.

There are a few diseases that may have direct effect on the tricuspid valve. Rheumatic fever is one of them, which takes place when proper attention is not paid to strep throat infections. Other not so common causes for tricuspid regurgitation are radiation therapy, and Marfan syndrome.

Tricuspid regurgitation can also be caused by a diet medication named Fen-Phen. If a person goes for any kind of dental treatment,bacterium that can enter the blood stream and cause tricuspid regurgitation. The bacteria can pass a disease to a spoilt mitral valve, and this can lead to endocarditis.

Symptoms of Tricuspid regurgitation

There will not be any grave symptoms in the case of tricuspid regurgitation if the patient does not have pulmonary hypertension. If pulmonary hypertension and moderate tricuspid regurgitation are present at the same time, the following symptoms may be present in the patient:

  • Continuous pulsing sensation in the neck veins
  • Puffiness of the ankles and feet
  • Reduced need to urinate
  • Extreme tiredness, exhaustion
  • Overall swelling in the body
  • Distension in the abdomen
  • Feebleness

Exams and Tests

Doctors can easily discover an idiosyncrasy when they palpate the chest or feel the pulse over the liver. Improper or irregular sounds can be heard upon a stethoscope examination. Collection of any pleural fluid in the abdomen can also attribute to tricuspid regurgitation.

An ECG report can help determine if there is swelling in the right ventricle. Doppler echocardiography can be of help in extreme cases to confirm the blood pressure level inside the lungs and heart.

Treatment of Tricuspid regurgitation

It is not required to go for any kind of treatment for tricuspid regurgitation if there are little to no symptoms. Fluids accumulated in the abdomen can be taken care of with medication. An analysis of the symptoms can best carried out at a hospital. There, the core symptoms should be recognized and provided with adequate treatment. Some people need to go though surgery to mend or replace the tricuspid valve. The procedure is slightly different than that of mitral valve repair for mitral regurgitation.

 

Outlook (Prognosis)

Symptoms of tricuspid regurgitation such as inflammation in the right ventricle and high blood pressure in the lungs may be treated properly to get rid of the disorder. Surgical valve repair by and large offers a cure. Nevertheless, people who cannot be treated for tricuspid regurgitation may have a bad prognosis.

Possible Complications such as a heart attack, endocarditis, and cirrhosis of liver may happen in rare cases. Rapid weight loss and loss of appetite can occur.

 

When to See a Doctor

Medical attention should be sought out if conditions worsen. Immediate treatment of the condition minimizes risk of tricuspid regurgitation. Strep infections should be treated to prevent rheumatic fever.

It is advisable to tell your doctor if you have any history of heart valve disease or any history of heart problems before getting dental treatment. However, antibiotics will lower the risk of conceiving endocarditis.

A Color Doppler Echocardiogram will show activity that resembles that of tricuspid regurgitation. This is known as physiologic regurgitation. Specialists do not feel the necessity to point out it to the patient, as they will be worried about a usual and not very serious echocardiogram.

To conclude pathologic tricuspid regurgitation, poor compression caused from this condition forces blood backwards across the tricuspid valve from the ventricle on the right quarter, which is the lower portion of the heart that goes to the right atrium which is the upper chamber. Leakage happens for every heart contraction including the right ventricle and could be owing to injury or deformity of the tricuspid valve .The tricuspid valve may also be affected by infection.

Other potential causes of significant tricuspid regurgitation include restrictive cardiomyopathy and constrictive pericarditis. Patients with mild to moderate tricuspid regurgitation lead a normal life and have no restrictions. Most of the restrictions to sports are associated with an underlying associated heart defect or underlying condition such as pulmonary hypertension. Therefore, prognosis in general may depend on the underlying condition and potential risk factors. Long-term complications may include heart failure, endocarditis, weight loss, and liver damage (cirrhosis).

Reference: Cholesterol Levels


08:27 Posted in Science | Permalink | Email this

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