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Biology & Medicine News and Discussions

Skin Cells Brain Cells Antibiotics WHO biotechnology genetic engineering bioprinting cancer evolution transhumanism

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#2681
Matthew

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Changes in the vascular system may trigger Alzheimer's disease
March 21, 2017
 

As the average age of Americans increases, so too does the problem of Alzheimer's, one of the world's most common neurological diseases. In recent years, scientists have explored many new approaches to clear the plaques and tangles in the brain that characterize the condition, but the new drugs have largely turned out to be disappointing.

A team of Rockefeller scientists is now using a fresh approach to look at biological processes that occur in the development of Alzheimer's disease (AD). Somewhat unexpectedly, they have found that a plasma component normally involved in blood clotting and inflammation may also be part of the problem in some patients.

 

Read more at: https://medicalxpres...isease.html#jCp


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#2682
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Spider venom found to reduce stroke-induced brain damage
Rich Haridy

 

 

The Australian funnel-web spider is generally something you'd want to steer well clear of, but the creepy crawly could soon be helping out stroke victims. A peptide found in the spider's venom has been shown to reduce the brain damage that occurs in the hours following a stroke, with early preclinical studies involving rats having delivered extremely promising results.

A University of Queensland research team, led by Professor Glenn King, has spent several years unravelling the potential medical benefits found in one of the world's most deadly spider venoms. In 2015, the team found a particular peptide in the venom that blocked the pathway responsible for sending pain signals from nerves to the brain.

 

 

http://newatlas.com/...e-damage/48525/


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#2683
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Huge advance' in fighting world's biggest killer
By James Gallagher Health and science reporter, BBC News website
 

 

 

An innovative new drug can prevent heart attacks and strokes by cutting bad cholesterol to unprecedented levels, say doctors.

The results of the large international trial on 27,000 patients means the drug could soon be used by millions.

The British Heart Foundation said the findings were a significant advance in fighting the biggest killer in the world.

Around 15 million people die each year from heart attacks or stroke.

Bad cholesterol is the villain in the heart world - it leads to blood vessels furring up, becoming easy to block which fatally starves the heart or brain of oxygen.

It is why millions of people take drugs called statins to reduce the amount of bad cholesterol.

 

http://www.bbc.com/n...health-39305640


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#2684
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China's low fertility rate will cause policies to shift and IVF to boom to millions per year and then mass embryo selection
 

 

Statistics released by the China Population Association (CPA) in 2013 revealed that the infertile population of the country has surpassed 40 million, making up 12.5 percent of the total population of childbearing age.

Some forecast that the Chinese baby boom by going to a full two child policy will fade after pent up demand is satisfied. Then the aging out of women of child bearing age will prevent policy from effecting birthrates.

 

http://www.nextbigfu...will-cause.html


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#2685
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Unexpected new lung function discovered: Making blood
Michael Irving

http://newatlas.com/...ke-blood/48553/

 

Our bodies still hold plenty of secrets, and scientists have just uncovered a doozy: the lungs play a key role in producing blood. Until now, this task was ascribed solely to bone marrow, but studies on mice at the University of California San Francisco (UCSF) have found that, surprisingly, the majority of the body's platelets are produced in the lungs, as is a backup reservoir of blood stem cells that can step in when those in the bone marrow run dry.

 


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#2686
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Protein discovery points to potential blood test for all cancers
Rich Haridy
 

 

Developing a blood test that can detect cancer has been a major area of research for scientists in recent years. Early detection is key in helping doctors successfully treat the disease and a blood test would be far simpler than invasive biopsies. Researchers at Purdue University recently made a major breakthrough identifying a series of proteins that, when found in elevated levels in a patient's blood, can signify the presence of cancer.

 

http://newatlas.com/...iagnosis/48555/


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#2687
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Some aging reversal in appearance, liver, muscle and other functions with cell penetrating peptides in very old mice

 

Researchers have rejuvenated old mice to restore their stamina, coat of fur and even some organ function. The team at Erasmus University Medical Center, in the Netherlands, are planning human trials for what they hope is a treatment for old age. A UK scientist said the findings were "impossible to dismiss", but that unanswered questions remained. The approach works by flushing out retired or "senescent" cells in the body that have stopped dividing.

They tested it on mice that were just old (the equivalent of 90 in mouse years), those genetically programmed to age very rapidly and those aged by chemotherapy.

The findings, published in the journal Cell, showed liver function was easily restored and the animals doubled the distance they would run in a wheel.

 

http://www.nextbigfu...ance-liver.html


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#2688
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Tissue created with microblood vessel network and integrated the tissue into mice - a major advance for bioprinting organs

 

New research, led by nanoengineering professor Shaochen Chen, addresses one of the biggest challenges in tissue engineering: creating lifelike tissues and organs with functioning vasculature —networks of blood vessels that can transport blood, nutrients, waste and other biological materials — and do so safely when implanted inside the body.

Researchers from other labs have used different 3D printing technologies to create artificial blood vessels. But existing technologies are slow, costly and mainly produce simple structures, such as a single blood vessel — a tube, basically. These blood vessels also are not capable of integrating with the body’s own vascular system.

“Almost all tissues and organs need blood vessels to survive and work properly. This is a big bottleneck in making organ transplants, which are in high demand but in short supply,” said Chen, who leads the Nanobiomaterials, Bioprinting, and Tissue Engineering Lab at UC San Diego. “3D bioprinting organs can help bridge this gap, and our lab has taken a big step toward that goal.”

 

http://www.nextbigfu...ood-vessel.html


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Also tagged with one or more of these keywords: Skin Cells, Brain Cells, Antibiotics, WHO, biotechnology, genetic engineering, bioprinting, cancer, evolution, transhumanism

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