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Daily Archives: September 18, 2022

Chart: China Resurging Debt

Source : Bloomberg

Humour: News in Cartoon

Carotid Bruit

What is a carotid bruit?

A carotid bruit (pronounced “broo-ee”) is the sound of turbulent blood flow in one or more of your carotid arteries. Turbulent flow means your blood isn’t flowing smoothly through your artery. Instead, blood flow is disorganized and choppy. Your carotid arteries are blood vessels in your neck that supply blood to your brain.

A carotid bruit is a clinical sign that your healthcare provider may notice during a routine physical exam. The sound of a carotid bruit may indicate that your carotid artery is narrowed due to plaque buildup. Sometimes, though, a carotid bruit occurs in people with healthy carotid arteries. Plus, some people with severe carotid artery narrowing don’t have a bruit. So, healthcare providers use this sign as just one piece of a much larger puzzle when deciding if you need further testing or treatment.

What do carotid bruits sound like?

A carotid bruit is a whooshing sound that’s similar to water rushing in a fast-moving river. You can’t hear a carotid bruit on your own. Instead, it’s something that your healthcare provider can hear through a stethoscope.

To check for a carotid bruit, your provider gently presses the end of a stethoscope against several different areas in your neck. You may need to inhale and then hold your breath for a few seconds as your provider listens to your blood flow through the stethoscope.

If your provider hears a carotid bruit, they’ll talk with you about what it might mean and whether you need follow-up testing.

What causes a bruit in the carotid artery?

Atherosclerosis is the most common cause of a carotid bruit. Atherosclerosis is a medical term that refers to the buildup of plaque (a fatty substance) in arteries throughout your body. This plaque narrows the lumen (opening) of your arteries, limiting blood flow. Plaque buildup can also lead to the formation of blood clots. A blood clot may block blood flow in the area where it forms. Or, it may travel through your bloodstream to another artery and block blood flow there.

A carotid bruit may indicate you have plaque buildup in your carotid artery. Plaque buildup in your carotid arteries can lead to carotid artery stenosis. This is a narrowing of your carotid artery.

Your carotid arteries play a major role in supplying oxygen-rich blood to your brain. So, if they fill up with plaque, you face a higher risk of a transient ischemic attack (TIA) or an ischemic stroke. In these conditions, blood flow to your brain is interrupted or blocked.

This is why it’s important to learn if you have carotid artery stenosis, and if so, how severe it is. A carotid bruit can be a warning sign that you have plaque buildup. But it doesn’t show how much plaque is present. So, a carotid bruit alone isn’t enough to diagnose you with carotid artery stenosis. Instead, it’s the first step your provider will use to investigate further.

Although plaque buildup is the most common cause of a carotid bruit, changes in blood vessel anatomy can also cause this vascular sound. For example, people who have fibromuscular dysplasia (FMD) may have a carotid bruit. Your healthcare provider will look at your medical history to help determine the cause of your carotid bruit.

How serious is a carotid bruit?

A carotid bruit may be a sign of a serious problem, but that’s not always the case. It’s sometimes a red flag showing you may have carotid artery stenosis. If your stenosis is severe, you’ll likely need treatment to lower your risk of a TIA or stroke. Your provider will tell you if your condition is serious and if you need treatment.

Can a carotid bruit be normal?

A carotid bruit doesn’t always indicate you have carotid artery stenosis. Some people with a carotid bruit don’t have significant plaque buildup and are otherwise healthy. Some people may have changes in their blood vessel anatomy, which can be normal or due to conditions like FMD. That’s why a carotid bruit is only the first step in diagnosing and treating carotid artery disease.

What happens next if I have a carotid bruit?

The presence of a carotid bruit will alert your provider that something may be wrong. Your provider may order further testing to evaluate the health of your carotid arteries. Such testing usually involves a carotid duplex ultrasound. This is a painless, noninvasive test that checks blood flow in your carotid arteries. It can show if your arteries are narrowed, and if so, how much.

Your provider will likely order such testing if you have a carotid bruit along with one or more risk factors for carotid artery stenosis. These include:

  • Coronary artery disease.
  • Diabetes mellitus (type 1 or type 2).
  • Family history of a stroke.
  • High blood pressure.
  • High cholesterol.
  • Older age (over 65, or over 55 if you have other risk factors).
  • Peripheral artery disease.
  • Tobacco use.

The more risk factors you have, the higher your risk of carotid artery stenosis.

If you need coronary artery bypass grafting (CABG), your provider may first order testing to check your carotid arteries. This is because carotid artery stenosis raises your risk of a stroke during or after some heart surgeries. You may need treatment before your surgery to lower your risk.

What treatments might I need?

Some people with a carotid bruit need treatment to lower their risk of a TIA or stroke. The goal of treatment is to improve blood flow through your carotid arteries.

Medications are often the first line of defense, especially if your carotid arteries aren’t severely narrowed. Depending on your condition, your provider may recommend one or more of the following medications:

  • Blood pressure medication.
  • Cholesterol-lowering medication.

Lifestyle changes can also play an important role. You can slow down the buildup of plaque in your arteries by taking these steps:

  • Avoid smoking and all tobacco products. Tobacco harms your blood vessels and raises your risk for many different cardiovascular diseases. Ask your provider for resources to help you quit.
  • Eat a heart-healthy diet. A heart-healthy diet involves limiting your intake of saturated fat, sodium and sugar. Plus, avoid red meat and instead choose lean chicken, turkey or fish.
  • Exercise regularly. Start slow, and gradually work up to 150 minutes of moderate-intensity exercise per week. Check with your provider about what’s safe for you before starting a new exercise plan.

If your carotid artery stenosis is more severe, you may need a surgery or procedure. These include:

  • Carotid endarterectomy: This is a surgery that removes plaque from your carotid artery.
  • Carotid angioplasty and stenting: This is a procedure that uses a device called a stent to open up your carotid artery.

Not everyone with a carotid bruit has blockages or needs treatment. Talk with your provider to learn more about what your carotid bruit means for you.


Source: Cleveland Clinic

Chart: U.S. 9-year-olds Reading and Math Test Scores Dropped

‍The national report card isn’t looking great. Data out this week revealed that 9-year-olds’ math and reading scores took a huge hit in the last two years — a worrying early sign of the pandemic’s impact on education.

Reading results are down some 5 points, the steepest decline since 1990, and math scores have declined for the first time since the National Assessment of Educational Progress began in the 1970s.


Source : Chartr

Difference Between Japanese Wagyu and Australian Wagyu

Kimio Osawa wrote . . . . . . . . .

We’re often asked what the difference is between Australian Wagyu and Japanese Wagyu. Whilst both types of Wagyu beef are delicious, here are the reasons why they are different.

Fullblood vs crossbred

Despite Australian Wagyu cattle’s bloodlines originating from Japan, they are bred, fed, grown and processed in Australia.

Our most prevalent Wagyu bloodlines come from the Japanese provinces of Tajima, Tottori, Shimane and Okayama.

But, according to Kimio Osawa, Founder of Osawa Enterprises, most Australian Wagyu cattle are crossbred.

“Over 95% of Australian Wagyu cattle are crossbred with other breeds. This makes them Crossbred or Purebred Wagyu,” Kimio says.

On the other hand, Japanese Wagyu cattle have a pure lineage with no crossbreeding, making them 100% fullblood Wagyu.

Bred, fed, grown and processed in Japan, this makes Japanese Wagyu beef more exclusive and expensive than Australian Wagyu.

Marbling

Wagyu is famed for its high levels of marbling.

Even though Australian Wagyu beef has large amounts of this intramuscular fat, it is not to the same extent as Japanese Wagyu’s marbling.

“Japanese Wagyu is more marbled than Australian Wagyu,” Kimio says.

Australian Fullblood, Purebred and Crossbred Wagyu beef all have varying levels of marbling.

The Australian beef grading systems are also different from the Japanese grading system.

Our two systems, AUS-MEAT and Meat Standards Australia, both have a marble score from 0 to 9. Australian Wagyu usually gets a 6 score.

In comparison, Japanese Wagyu is world famous for its high levels of marbling.

Japanese Wagyu is graded according to the Japanese Beef Grading System. This system looks at yield from A to C, beef quality from 1 to 5 and a beef marble score from 3 to 12.

Considered the ‘Rolls-Royce’ of beef and also the most marbled, only Japanese Wagyu can receive the prized A5 score.

Texture and size

Whilst Australian Wagyu beef is rich and buttery like Japanese Wagyu, there are some differences when it comes to texture and size.

Australia’s soils, grasses and climate all make Australian Wagyu beef naturally different to Japanese Wagyu.

What’s more, different feeding techniques also impact Wagyu’s texture and size.

Australian Crossbred Wagyu are fed for 350 to 450 days, whilst Japanese Wagyu cattle are fed for 600 days or more.

The long-fed feeding technique makes Japanese Wagyu more tender and larger in size compared to Australian Wagyu.

“Japanese Wagyu is probably twice the size of Australian Wagyu and has a distinctive sweet flavour that comes in through the nose,” Kimio says.

Despite the differences between Australian Wagyu and Japanese Wagyu, both are delicious, which is why we highly recommend that you try both!


Source: Osawa Enterprises

Chart: 中国新农人近年来快速增长

近年来,年轻人“跳回农门”正在成为新时尚。有的人放弃城市的工作,跨界回农村开社区生态农场;有的博士高材生回到农村,乐此不疲干起了养殖;市面上许多小而美的农副产品品牌,十有八九背后有“高人”在运营。这些人有一个共同的名字:新农人。

Source : 新华网