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Starting from childhood, otherwise healthy Black people show signs of decreased cardiovascular fitness and slightly higher blood pressure than their white counterparts, factors that could put them in the process of developing early heart failure, researchers report.

The homecoming message of parents and doctors is that, especially for people at high risk of heart disease such as Black people, a close check on blood pressure from an early age should be considered, says a corresponding author of the study at the American Journal of Heart Association.

Children with chronic high blood pressure and who may need an early heart test and / or supplementation to lower their blood pressure to protect their future heart health, says Dr. Gaston Kapuku, a cardiologist at the Georgia Prevention Institute at the Medical College of Georgia at Augusta University.

Researchers also found that partial discharge, a widely used method of checking the strength of the heart muscle by looking at the amount of blood in the left ventricle, the main chamber of the heart, which pumps with each decrease is not a good way to identify these at-risk people as they walk.

Instead of a long-term, but less commonly used analysis called midwall fractional shortening, or MFS, which focuses specifically on cardiovascular injury, it seems to provide an early understanding that the heart wall is beginning to harden and weaken in response to pressure of the largest blood in the body, which brings oxygen to the body.

Kapuku and his colleagues looked at 673 people - about half men and women, half black and half white - who were followed by the Georgia Prevention Institute for more than 30 years as part of the Augusta Heart Study, looking at the formation of risk factors for cardiovascular risk. in children with a family history of risk factors such as high blood pressure and heart attack.

This looks like the first future study to examine changes in the heart muscle, or myocardium, that work in a healthy group of people throughout their lives.

They found that while part of the discharge was concentrated on black study participants over the course of the 30-year study period, MFS was able to record a fraction of the point of change in cardiac function: A decrease of .54% of MFS in Black participants compared to white participants, as they both grow from white at a young age. They also found that as the size of the left ventricle grows by 1 gram, or about 0.035 ounces, MFS decreased in Black participants by 0.01%. The whole heart weighs 7-15 ounces, and a large heart is a sign of disease.

And like the pressure inside the aorta, where the ventricle pumps, have been moving slowly over the years, the MFS, which shows muscle strength, has dropped down.

A subtle decline in MFS is associated with an increased risk of congestive heart failure, the researchers wrote. Kapuku notes that while there is a reduction in the number of acquired findings that are not clinically relevant for these young people, if the practice persists they may be a factor in their heart health.

"If you look at MFS you can really test the strength of your muscles, you know it's shrinking even though the release fraction is normal," Kapuku said.

MFS is a formula that also deals with the size of the heart wall when it is contracted and free. Kapuku aligns his biceps to show the obvious difference between contracting and relaxing with muscle size. The heart space that fills the bloodstream is much larger when it is relaxed, called diastole, and the muscle grows larger as it works, called the systole.

Kapuku and his colleagues say MFS is a simple, sensitive and inexpensive way to detect small changes in cardiovascular activity that puts the stage of heart failure down the road, perhaps especially for young black people.

Heart disease is the leading cause of death for all Americans, but mortality rates are higher for Black people than for whites and other races, and diseases start at an early age, according to The Heart Foundation. Although cardiovascular disease remains the first killer, cardiovascular failure is the only old cardiovascular disease that continues to increase in frequency, says Kapuku, especially because people live longer. Black people also have a much higher rate of congestive heart failure caused by aging, than there is direct damage to the heart muscle resulting from a heart attack, Kapuku said.

Research has helped to show racial differences, including slightly higher blood pressure and lower heart rate, already seen at a young age, he says. Researchers suspect that stress-induced sodium retention, in which a large percentage of Black people cling to excess sodium, rather than hiding it in their urine, is a significant factor. High sodium levels increase the amount of fluid inside the blood vessels and blood pressure, including pressure inside the aorta, which the left ventricle must continue to pump against, called afterload.

That means that in addition to physical fitness, a young black man’s blood pressure will be more likely to run faster than his white partner, which puts a higher risk of heart failure in life, Kapuku said.

Like Kapuku's biceps trying to lift heavy arm muscles, the heart will increase muscle mass against this increased pressure but, unlike the biceps, the heart does not work better when it is bigger.

"If I didn't have more resistance, I wouldn't be raising my heart rate," Kapuku said. "We need to lower our blood pressure as soon as possible. Cardiac dysfunction may occur before the currently described clinical procedure for high blood pressure."

That means lowering blood pressure in young black people, perhaps just after getting into the adole

Research Reveals How Tea Can Lower Blood Pressure

Drinking tea is associated with a wide range of health benefits, including lowering blood pressure.

Researchers have discovered that chemicals called catechins, found in green and black teas, release smoother muscle tissue, which can lead to lower blood pressure.

The discovery could lead to the development of better drugs for high blood pressure, also called hypertension.

These findings may also encourage new treatments for a debilitating condition called epileptic encephalopathy.

People first drank caffeinated tea more than 4,000 years ago in China. Since then, it has become one of the most popular beverages in the world, second only to water.

Both green and black teas are made from the leaves of the same plant, Camellia sinensis, but green tea, made from unleavened leaves, contains many antioxidants.

The soft liquid during the fermentation process of black tea reduces its antioxidant levels.

Numerous studies have found that green tea prevents the formation of cancer, lowers high blood pressure, and reduces the risk of heart disease.

However, the mechanism of cells responsible for influencing blood pressure has not yet been determined.

Scientists at the University of California, Irvine (UCI) and the University of Copenhagen, Denmark, have discovered that garden antioxidants have opened up ion channels and can relax muscles that clog blood vessels.

  They report their discoveries in the diary Cellular Physiology and Biochemistry.

The discovery could signal the development of highly effective antihypertensive drugs, which could improve the lives of millions of people worldwide.

As indicated by the National Heart, Lung, and Blood Institute, controlling or bringing down hypertension can help forestall constant kidney infection, coronary illness, cardiovascular breakdown, and perhaps dementia.

 The Centers for Disease Control and Prevention (CDC) reports that practically 50% of all grown-ups in the United States have hypertension.It is estimated that by the year 2018, the situation contributed to the deaths of nearly half a million people in the country.

Meanwhile, the World Health Organization (WHO) estimates that more than 1 billion people worldwide have hypertension.

New research is beginning to show that two antioxidants in tea, known as catechins, open up a protein channel in the smooth muscle cells that line blood vessels. This allows well-charged potassium ions to leave cells.

Nerve and muscle cell channels retain cables throughout their membranes by allowing the negative and positive ions to enter and exit a controlled path. They are “voltage-gated,” meaning that they respond to changes in that voltage by turning on or off.

Researchers have found that green tea leaves activate a type of potassium ion channel, called KCNQ5.

Previous work by other similar scientists suggests that this protein channel could have the effects of counteracting the effects of several plants that have been used as traditional medicine for thousands of years.

In a new study, researchers used computer models and modified versions of channel protein to show that two cats are tied to a phase that is supported by a change in energy.

"This integration allows the channel to open more easily and at the beginning of the process of mobile interest," explains higher education author Prof. Geoffrey Abbott, Department of Physiology & Biophysics at UCI School of Medicine.

Theoretically, this should make the muscle cells “less attractive” and therefore less likely to get a contract. They should instead relax, lower the blood vessel and lower blood pressure.

To test this hypothesis, Prof Abbott's associates at the University of Copenhagen measure changes in tension in the walls of blood vessels from mice. Their findings confirmed that the two cats from the tea were relaxed and relaxed the arteries by opening the KCNQ5 ion channel.

The authors are confident that adding a dash of milk to black tea does not reduce its anti-hypertensive effects.

Milk tea, applied directly to laboratory cells, has failed to utilize its KCNQ5 channels. But this may not be the case when one is drinking.

Prof. Abbott explains:

  We don't accept that this implies that one needs to maintain a strategic distance from milk when savoring tea request to profit by the helpful effects of tea. We are convinced that the environment in the human stomach will separate cats and proteins from other milk molecules. that can prevent the good effects of cats. "

Scientists also found that warming green tea to 35 ° C increased KCNQ5 production.

Still, lovers of iced tea need not worry.

"Whether the tea is cold or hot, this heat is absorbed after drinking tea, as the human body temperature can be as high as 37 ° C," said Prof. Abbott. "So, by simply drinking tea, we are using its beneficial properties, which have high blood pressure."

KCNQ5 is also present in the nervous system in the brain, where it helps regulate ele 

Warning-Story tips and suggestions are for general information. Do not take this as the advice of any doctor or medical professional. In the case of symptoms or illness, take your doctor's advice.