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News on Health & Science

Protein find may be kye to cancer,eye disorder

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A protein that prevents blood vessels from forming in the cornea could become the basis of new treatments for cancer and macular degeneration, a leading cause of blindness in the elderly, scientists said.

The team of international researchers identified a protein called sVEGFR-1 and found that when levels are low, blood vessels begin to form in the eye, impairing vision.

They believe therapies that boost levels of the protein could prevent the formation of blood vessels, which are a component in the spread of cancers and the cause of macular degeneration.

“We have discovered what it is that keeps the cornea clear. It has no blood vessels — which allows us to see,”said Dr Jayakrishna Ambati, of the University of Kentucky in Lexington who headed the research team.

The cornea is the transparent front part of the eye. Scientists have wondered for centuries why it has no blood vessels.

What causes blood vessels to form is a fundamental question for vision and also for diseases like cancer.

“This finding teaches us what keeps the cornea clear and gives us the ability to exploit it in other diseases, both in the eye and systemically because now you have a protein that blocks blood vessel growth that the body itself makes,”added Ambati, who reported the findings in the journal Nature.

The lack of blood vessels has been perplexing researchers because the cornea contains vast amounts of a chemical called VEGF-A, which promotes blood vessel growth.

The new protein discovered by Ambati and researchers from the US, Japan, Italy and Australia provides the answer. It is produced in the cornea and acts like a mop, absorbing VEGF-A which would otherwise make blood vessels grow.

(As published in The Times Of India)

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Health Alert News on Health & Science

Food may be like a drug for some

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 The same brain circuits are involved when obese people fill their stomachs as when drug addicts think about drugs, a finding that suggests overeating and addiction may be linked, US researchers reported on Monday.

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The finding may help in creating better treatments for obesity a growing problem in the US and elsewhere.

“We wanted to know why, when people are already full, why people are still eating a lot,” said Dr Gene-Jack Wang of Brookhaven National Laboratory in Upton, New York.

“We were able to simulate the process that takes place when the stomach is full, and for the first time we could see the pathway from the stomach to the brain that turns “off” the brain’s desire to continue eating.”

Wang and colleagues tested seven obese volunteers who had been fitted with a gastric stimulator a device that tricks the body into thinking the stomach is full.

They used a PET scan to see which parts of the brain activated when the stimulator was activated. “We thought the activated area (of the brain) must be in the satiety centre,” Wang said. “We saw a lot of activity in all areas of the brain, especially in the hippocampus.”

The gas stimulators also sent messages of satiety to brain circuits in the orbitofrontal cortex and striatum, which have been linked to craving and desire in cocaine addicts.

“This provides further evidence of the connection between the hippocampus, the emotions, and the desire to eat, and gives us new insight into the mechanisms by which obese people use food to soothe their emotions,” said Wang.

(From the news published in The Times Of India)

Categories
Ailmemts & Remedies

Migraine

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What are Migraines?
Migraine is a biologically based disorder. Its symptoms are the result of changes in the brain, not a weakness in character or an inappropriate reaction to stress. For many years, scientists believed migraines were linked to the dilation and constriction of blood vessels in the head. They now believe migraine is caused by inherited abnormalities in certain cells in the brain. People with migraine have an enduring predisposition to attacks triggered by a range of factors. Specific, abnormal genes have been identified for some forms of migraine.

………………………....CLICK & SEE THE  PICTURES

Symptoms:

People who get migraine headaches appear to have special sensitivities to various triggers, such as bright lights, odors, stress, weather changes or certain foods and beverages.If you get a migraine, you may experience an aura 10 to 30 minutes before the attack. An aura may cause the sensation of seeing flashing lights or zigzag lines, or you may temporarily lose vision. Other classic symptoms include speech difficulty, weakness of an arm or leg, tingling of the face or hands and confusion. About 20 percent of migraine victims experience an aura prior to an attack. Even if you don’t have an aura, you may experience a variety of vague symptoms beforehand, including mental fuzziness, mood changes, fatigue and unusual retention of fluids.

The pain of a migraine is described as intense, throbbing or pounding and is felt in the forehead, temple, ear, and jaw, around the eye or over the entire head. It may include nausea and vomiting, and can last a few hours, a day, or even up to three or four days.

Migraines can strike as often as several times a week, or as rarely as once every few years. Some women experience migraines at predictable times–near the time that menstruation begins or every Saturday morning after a stressful workweek.

In addition migraine can take several other forms:

Hemiplegic migraine: Patients with hemiplegic migraine have temporary paralysis on one side of the body, a condition known as hemiplegia. Some people may experience vision problems and vertigo-a feeling that the world is spinning. These symptoms begin 10 to 90 minutes before the onset of headache pain.

Ophthalmoplegic migraine: In ophthalmoplegic migraine, the pain is around the eye and is associated with a droopy eyelid, double vision and other sight problems.

Basilar artery migraine: Basilar artery migraine involves a disturbance of a major brain artery. Preheadache symptoms include vertigo, double vision and poor muscular coordination. This type of migraine occurs primarily in adolescent and young adult women and is often associated with the menstrual cycle.

Status migrainosus
: This is a rare and severe type of migraine that can last 72 hours or longer. The pain and nausea are so intense sufferers often must be hospitalized. The use of certain drugs can trigger status migrainosus. Neurologists report that many of their status migrainosus patients were depressed and anxious before they experienced headache attacks.

Headache-free migraine:
This type is characterized by such migraine symptoms as visual problems, nausea, vomiting, constipation or diarrhea. Patients, however, do not experience head pain. Headache specialists have suggested that unexplained pain in a particular part of the body, fever and dizziness could also be possible types of headache-free migraine.

Causes:
Because migraine headaches are believed to have a genetic component, it might help your doctor in making a diagnosis to review your family history even if you are not aware that a relative suffered from migraines, consider information you may know about, such as past illnesses and lifestyles. Keep in mind that the term “migraine” was not used much until the 1950s, and even then many migraines were not diagnosed or referred to as “migraines.”
Triggers:
Migraines may be induced by triggers, with some reporting it as an influence in a minority of cases and others the majority. Many things have been labeled as triggers, however the strength and significance of these relationships are uncertain. A trigger may be encountered up to 24 hours prior to the onset of symptoms.

Physiological aspects:
Common triggers quoted are stress, hunger, and fatigue (these equally contribute to tension headaches). Migraines are more likely to occur around menstruation. Other hormonal influences, such as menarche, oral contraceptive use, pregnancy, perimenopause, and menopause, also play a role. These hormonal influences seem to play a greater role in migraine without aura. Migraines typically do not occur during the second and third trimesters or following menopause.

Dietary aspects:
Reviews of dietary triggers have found that evidence mostly relies on self-reports and is not rigorous enough to prove or disprove any particular triggers. Regarding specific agents there does not appear to be evidence for an effect of tyramine on migraine, and while monosodium glutamate (MSG) is frequently reported as a dietary trigger, evidence does not consistently support this.

Environmental aspects:
A review on potential triggers in the indoor and outdoor environment concluded the overall evidence was of poor quality, but nevertheless suggested people with migraines take some preventive measures related to indoor air quality and lighting.

Pathophysiology:
Migraines are believed to be a neurovascular disorder with evidence supporting its mechanisms starting within the brain and then spreading to the blood vessels. Some researchers feel neuronal mechanisms play a greater role, while others feel blood vessels play the key role. Others feel both are likely important. High levels of the neurotransmitter serotonin, also known as 5-hydroxytryptamine, are believed to be involved.

Aura:
Cortical spreading depression, or spreading depression according to Leão, is bursts of neuronal activity followed by a period of inactivity, which is seen in those with migraines with an aura. There are a number of explanations for its occurrence including activation of NMDA receptors leading to calcium entering the cell. After the burst of activity the blood flow to the cerebral cortex in the area affected is decreased for two to six hours. It is believed that when depolarization travels down the underside of the brain, nerves that sense pain in the head and neck are triggered.
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Pain:
The exact mechanism of the head pain which occurs during a migraine is unknown. Some evidence supports a primary role for central nervous system structures (such as the brainstem and diencephalon) while other data support the role of peripheral activation (such as via the sensory nerves that surround blood vessels of the head and neck). The potential candidate vessels include dural arteries, pial arteries and extracranial arteries such as those of the scalp. The role of vasodilatation of the extracranial arteries, in particular, is believed to be significant
Diagnosis:
The diagnosis of a migraine is based on signs and symptoms.[5] Neuroimaging tests are not necessary to diagnose migraine, but may be used to find other causes of headaches in those whose examination and history do not confirm a migraine diagnosis.[57] It is believed that a substantial number of people with the condition remain undiagnosed.[5]

The diagnosis of migraine without aura, according to the International Headache Society, can be made according to the following criteria, the “5, 4, 3, 2, 1 criteria”:

*Five or more attacks—for migraine with aura, two attacks are sufficient for diagnosis.
*Four hours to three days in duration
*Two or more of the following:
*Unilateral (affecting half the head);
*Pulsating;
“Moderate or severe pain intensity”;
“Aggravation by or causing avoidance of routine physical activity”

*One or more of the following:
*Nausea and/or vomiting;
*Sensitivity to both light (photophobia) and sound (phonophobia)

If someone experiences two of the following: photophobia, nausea, or inability to work or study for a day, the diagnosis is more likely. In those with four out of five of the following: pulsating headache, duration of 4–72 hours, pain on one side of the head, nausea, or symptoms that interfere with the person’s life, the probability that this is a migraine is 92%. In those with fewer than three of these symptoms the probability is 17%

When checking family history these questions  are to be asked:

  • When growing up, do you recall a family member who was sick much of the time?
  • If so, did he/she exhibit any of the following symptoms: head pain that interfered with daily activities, nausea or vomiting, sensitivity to light or sound, numbness or speech difficulty?
  • To what did he or she attribute symptoms of their headache: menstrual cycle, over-work, fatigue, stress or something eaten or drunk?
  • Be prepared to discuss with your health care professional both the symptoms of relatives’ headaches and their methods for coping.Diagnosing a headache relies on ruling out other problems, such as tumors or strokes. Experts agree that a detailed question-and-answer session with a patient can often produce enough information for a diagnosis. Some women have headaches that fall into an easily recognizable pattern, while others require further testing to determine if symptoms are due to secondary causes such as dental pain, hemorrhage or tumor.You may be asked:
  • How often do you have headaches?
  • Where is the pain?
  • How long do the headaches last?
  • When did you first develop headaches?

Your sleep habits and family and work situations may also be discussed.

Take a migraine Test
Classification:
Main article: ICHD classification and diagnosis of migraine
Migraines were first comprehensively classified in 1988. The International Headache Society most recently updated their classification of headaches in 2004.[3] According to this classification migraines are primary headaches along with tension-type headaches and cluster headaches, among others.

Migraines are divided into seven subclasses (some of which include further subdivisions):

*Migraine without aura, or “common migraine”, involves migraine headaches that are not accompanied by an aura

*Migraine with aura, or “classic migraine”, usually involves migraine headaches accompanied by an aura. Less commonly, an aura can occur without a headache, or with a nonmigraine headache. Two other varieties are familial hemiplegic migraine and sporadic hemiplegic migraine, in which a person has migraines with aura and with accompanying motor weakness. If a close relative has had the same condition, it is called “familial”, otherwise it is called “sporadic”. Another variety is basilar-type migraine, where a headache and aura are accompanied by difficulty speaking, world spinning, ringing in ears, or a number of other brainstem-related symptoms, but not motor weakness. This type was initially believed to be due to spasms of the basilar artery, the artery that supplies the brainstem.

*Childhood periodic syndromes that are commonly precursors of migraine include cyclical vomiting (occasional intense periods of vomiting), abdominal migraine (abdominal pain, usually accompanied by nausea), and benign paroxysmal vertigo of childhood (occasional attacks of vertigo).

*Retinal migraine involves migraine headaches accompanied by visual disturbances or even temporary blindness in one eye.

*Complications of migraine describe migraine headaches and/or auras that are unusually long or unusually frequent, or associated with a seizure or brain lesion.

*Probable migraine describes conditions that have some characteristics of migraines, but where there is not enough evidence to diagnose it as a migraine with certainty (in the presence of concurrent medication overuse).

*Chronic migraine is a complication of migraines, and is a headache that fulfills diagnostic criteria for migraine headache and occurs for a greater time interval. Specifically, greater or equal to 15 days/month for longer than 3 months.

Abdominal migraine:
The diagnosis of abdominal migraines is controversial. Some evidence indicates that recurrent episodes of abdominal pain in the absence of a headache may be a type of migraine or are at least a precursor to migraines. These episodes of pain may or may not follow a migraine-like prodrome and typically last minutes to hours. They often occur in those with either a personal or family history of typical migraines. Other syndromes that are believed to be precursors include cyclical vomiting syndrome and benign paroxysmal vertigo of childhood.

Differential diagnosis:
Other conditions that can cause similar symptoms to a migraine headache include temporal arteritis, cluster headaches, acute glaucoma, meningitis and subarachnoid hemorrhage.[11] Temporal arteritis typically occurs in people over 50 years old and presents with tenderness over the temple, cluster headaches presents with one-sided nose stuffiness, tears and severe pain around the orbits, acute glaucoma is associated with vision problems, meningitis with fevers, and subaracchnoid hemorrhage with a very fast onset. Tension headaches typically occur on both sides, are not pounding, and are less disabling.[11]

Those with stable headaches which meet criteria for migraines should not receive neuroimaging to look for other intracranial disease.[57] This requires that other concerning findings such as papilledema (swelling of the optic disc) are not present. People with migraines are not at an increased risk of having another cause for severe headaches.

Treatment:

Medication:
Preventive migraine medications are considered effective if they reduce the frequency or severity of the migraine attacks by at least 50%. Guidelines are fairly consistent in rating topiramate, divalproex/sodium valproate, propranolol, and metoprolol as having the highest level of evidence for first-line use. Recommendations regarding effectiveness varied however for gabapentin. Timolol is also effective for migraine prevention and in reducing migraine attack frequency and severity, while frovatriptan is effective for prevention of menstrual migraine.

Amitriptyline and venlafaxine are probably also effective. Angiotensin inhibition by either an angiotensin-converting enzyme inhibitor or angiotensin II receptor antagonist may reduce attacks. Botox has been found to be useful in those with chronic migraines but not those with episodic ones
Alternative Therapy:
While acupuncture may be effective, “true” acupuncture is not more efficient than sham acupuncture, a practice where needles are placed randomly. Both have a possibility of being more effective than routine care, with fewer adverse effects than preventative medications. Chiropractic manipulation, physiotherapy, massage and relaxation might be as effective as propranolol or topiramate in the prevention of migraine headaches; however, the research had some problems with methodology. The evidence to support spinal manipulation is poor and insufficient to support its use. Of the alternative medicines, butterbur has the best evidence for its use.

Some Herbal Medicines for Migraine:

1. Betel leaves can be applied with beneficial results over the painful area to releave intense headache.

2. Seeds of bishop’s weed (ajwaine) are useful in the treatment of migraine. They should either be smoked or sniffed frequently to obtain relief.

3. A paste of clove and salt crysrals in the milk is a common household remedy for the headache.

4. Ginger oinment made by rubbing dry ginger with a little water on a grinding stone should be applied to the forehead.

5. Henna (mehndi) flowers cure headachs caused by the heat of the sun.Headache is relieved by a plaster made of henna flowers in vinegar and applied over the forehead.

Mysterious migraine in Ayurveda and Mygraine treatment in Homeopathy

For different kinds Home remedies of migraine visit link 1 and link2 and link3

One may try this Magic Drink to stop headache instantly:
All you need is lemon juice and salt. Not many people know of this remedy, but it can be used by anyone with a migraine. You need high-quality salt, like Himalayan salt. Himalayan salt contains about 84 healthy elements. Salt increases the levels of serotonin in the blood, which will save you from headaches.

Get fresh lemons and squeeze the juice out of the lemons and add about 2 teaspoons of salt to the juice. Stir this mixture and then add water.
When the water has been added you can drink it immediately. You must drink the whole thing in order for it to work, don’t sip on it. It may not taste too great, but it will definitely get rid of your migraine.

Devices and surgery:
Medical devices, such as biofeedback and neurostimulators, have some advantages in migraine prevention, mainly when common anti-migraine medications are contraindicated or in case of medication overuse. Biofeedback helps people be conscious of some physiological parameters so as to control them and try to relax and may be efficient for migraine treatment. Neurostimulation uses implantable neurostimulators similar to pacemakers for the treatment of intractable chronic migraines with encouraging results for severe cases. A transcutaneous electrical nerve stimulation device is approved in the United States for the prevention of migraines. Migraine surgery, which involves decompression of certain nerves around the head and neck, may be an option in certain people who do not improve with medications

Prevention:
Preventive treatments of migraines include medications, nutritional supplements, lifestyle alterations, and surgery. Prevention is recommended in those who have headaches more than two days a week, cannot tolerate the medications used to treat acute attacks, or those with severe attacks that are not easily controlled.

The goal is to reduce the frequency, painfulness, and/or duration of migraines, and to increase the effectiveness of abortive therapy.  Another reason for prevention is to avoid medication overuse headache. This is a common problem and can result in chronic daily headache

Click to see:..> Prevention of migraines

Disclaimer: This information is not meant to be a substitute for professional medical advise or help. It is always best to consult with a Physician about serious health concerns. This information is in no way intended to diagnose or prescribe remedies.This is purely for educational purpose.
Resources:
http://en.wikipedia.org/wiki/Migraine
http://www.prevention.com/tab/0,7199,s1-1-196-779-0-0—13,00.html

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Categories
Ailmemts & Remedies

Alzheimer’s disease and Dementia

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Alzheimer’s disease is a progressive brain disorder that gradually destroys a person’s memory and ability to learn, reason, make judgments, communicate and carry out daily activities. As Alzheimer’s progresses, individuals may also experience changes in personality and behavior, such as anxiety, suspiciousness or agitation, as well as delusions or hallucinations.

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Dementia simply means the symptom of a deterioration of intellectual abilities resulting from an unspecified disease or disorder of the brain.Dementia can best be defined as one of the symtoms of Alzheimer’s disease.
Alzheimers Disease is one disease/disorder that causes dementia. Many other illnesses or “syndromes” can also cause dementia. Parkinsons Disease can cause dementia. A stroke can cause dementia. Even dehydration can cause dementia...CLICK & SEE

When people think about staying fit, they generally think from the neck down. But the health of your brain plays a critical role in almost everything you do: thinking, feeling, remembering, working, and playing “ and even sleeping.He can be called a fit person who is perfect in body,mind and sole.

There are two basic types of Alzheimer’s disease: Early-onset Alzheimer’s disease tends to strike people under age 65 and is more likely to run in families. Late-onset Alzheimer’s disease, the much more common type, generally afflicts people after age 65. The exact cause of Alzheimer’s is unknown, although researchers studying this puzzling disease are making progress.

Who Is Affected?
The chances of getting Alzheimer’s disease increase with age. It usually occurs after age 65. Most people are not affected even at advanced ages. Research indicates that there are two definite factors which may increase the risk for Alzheimer’s disease: a family history of dementia and Down’s syndrome.

  • Family History of Dementia
    Some forms of Alzheimer’s disease are inherited. If Alzheimer’s disease has occurred in your family members, other members are more likely to develop it.
  • Down’s Syndrome
    Persons with Down’s syndrome have a higher chance of getting Alzheimer’s disease. Close relatives of persons with Down’s syndrome also may be at risk

The good news is that we now know there’s a lot you can do to help keep your brain healthier as you age. These steps might also reduce your risk of Alzheimer’s disease or other dementia.

Simple lifestyle modifications also would have an enormous impact on our public health and the cost of healthcare woul be reduced. If you make brain-healthy lifestyle changes and take action by getting involved, we could realize a future without Alzheimer’s disease.

1.Try to make you brain healthy and keep you happy in most of your actions.

Like other parts of your body, your brain may lose some agility as you get older. It can deteriorate even more if you don’t take care of it. Science is unlocking many of the mysteries of the brain, but we don’t have all the answers yet.

2.Stay mentally active

This will strengthen your brain cells and improve connections between them.

3. Stay physically active

This will increase the blood flow to the brain as well as encourage new new brain cells.

4. Always try to eat healthy diet.

Research suggests that high cholesterol may contribute to stroke and brain cell damage. A low fat, low cholesterol diet is advisable. And there is growing evidence that a diet rich in dark vegetables and fruits, which contain antioxidants, may help protect brain cells.

I personally believe that regular practice of YOGA and MEDITATION this type of disease can be kept under total control and particularly PRANAYAM is very good for this.

ALZHEIMER’S TREATMENT WITH CHINESE HERBS

Click to see :Moss protein linked to Alzheimer’s? published in the Times Of India. 9Th. Feb.’08.

Disclaimer: This information is not meant to be a substitute for professional medical advise or help. It is always best to consult with a Physician about serious health concerns. This information is in no way intended to diagnose or prescribe remedies.This is purely for educational purpose.

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