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Archive for the ‘biotech/medical’ category: Page 2169

Sep 10, 2018

NMN and the Cell Membrane

Posted by in categories: biotech/medical, genetics, life extension

Today, we are going to take a look at the topic of NAD+, its precursor, nicotinamide mononucleotide, and the debate surrounding the ability of these molecules to pass through the cell membrane.

NAD+ is critical for cellular function

Nicotinamide adenine dinucleotide (NAD+) is a redox cofactor, but it is also a critical signaling molecule that regulates cell function and survival in response to environmental changes such as nutrient intake and cellular damage. Age-related changes to the level of NAD+ in the cell impacts mitochondrial function, nutrient sensing and metabolism, redox reactions, circadian rhythm, immune and inflammatory responses, DNA repair, cell division, protein-to-protein signaling, chromatin, and epigenetics.

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Sep 10, 2018

Antibiotic-Resistant Superbugs Are Getting Deadlier

Posted by in category: biotech/medical

Why the spike? For years, doctors doled out antibiotics willy-nilly. Even today, up to half of all prescribed antibiotics are unnecessary or used ineffectively.

Whenever antibiotics are used, some mutant bacteria survive. But the more an antibiotic is used, the more rapidly bacteria become resistant, reducing the effectiveness of the drug.

New treatments for superbugs are needed, but there have been no major novel antibiotic developments since the 1960s. That’s largely because pharmaceutical companies are abandoning antibiotic research. It’s time-consuming and expensive to bring a new drug to market — it takes about ten years and $2.9 billion, on average. So companies develop drugs that will make as much money as possible. Since drugs for chronic diseases make people life-long subscribers, and antibiotics are “one and done,” developers opt to make the former. Moreover, growing antibiotic resistance reduces the effective lifespan of new drugs, further limiting profits.

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Sep 10, 2018

New cancer vaccine is 100 percent successful in mouse model

Posted by in category: biotech/medical

A team of experts has conducted tests in mice for a potent new vaccine against melanoma. So far, the researchers have observed a 100 percent success rate.

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Sep 10, 2018

Of Vampires And The Challenges Of Longevity Drugs

Posted by in categories: biotech/medical, life extension

An interesting article in Forbes on GDF11, anti-aging drugs and companies:


For an example of how hard it is to develop an anti-aging medicine, check this out. It’s some of the coolest and creepiest science to have been published in major academic journals. But is it ready to form the basis of a pharmaceutical company?

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Sep 9, 2018

The Alzheimer’s Hypothesis

Posted by in categories: biotech/medical, neuroscience

A detailed analysis of Alzheimer’s disease.


Alzheimer’s disease was first discovered in 1907 in a 51 year old woman by the German physician Alzheimer. One of the first changes noticed was an eruption of jealous feelings towards her husband. It wasn’t long before symptoms of rapid memory impairment were observed. The impairments prevented her from finding her way out of her home, She hid herself, she would drag objects to and fro, and occasionally screamed because she believed people were out to kill her.

When she was institutionalized her gestures would show a complete helplessness. As common in most Alzheimer’s patients, she was disoriented as to time and place. At times she would state that she didn’t understand anything, felt confused, and totally lost. When the doctor came in to see her she would consider it as an official visit and would apologize for not having finished her work. Other times she would be terrified and start to yell that the doctor wanted to operate on her. Other times she would send him away in complete indignation uttering phrases indicating that she was afraid that the doctor wanted to damage her woman’s honor. At times she would become completely delirious, dragging her blankets and to and fro, calling for her husband and daughter, and seeming to experience auditory hallucinations. She would often scream for hours and hours in a horrible voice. Mental regression advanced quite steadily. After four and a half years of illness the patient finally died.

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Sep 9, 2018

Methuselah Foundation Cofounder thinks Longevity Escape Velocity could be here by 2030

Posted by in categories: biotech/medical, life extension

David Gobel was the first to put forward the concept of longevity escape velocity, or LEV. How far are we from LEV, assuming the current pace of research and no serious showstoppers?

Twelve years, or 2030, is David’s best guess based on what is known today.


David Gobel cofounded the Methuselah Foundation with Aubrey de Grey and continues to run the Methuselah Foundation today.

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Sep 9, 2018

Towards data-driven biotechnology

Posted by in categories: bioengineering, biotech/medical, economics, robotics/AI

Data centers are the new oil refineries, argues The Economist. Where black sludge and steam once marked the beating heart of the economy, now blinking servers laced with fiber optic cables indicate where the action is.

Biotechnology — like all other industries — must adapt. Synthetic biology teams that embrace modern tools like cloud computing, professionally built software, and laboratory automation will save time, reduce errors, streamline complex workflows, and maintain their agility in the digital economy. Those who fail to adopt new tools will be primed for disruption.

Software is already an integral part of biological research, but most scientific apps lag far behind the rest of the digital frontier. As the software giant Autodesk puts it:

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Sep 8, 2018

A 50-year-old NASA invention that could kill cancer

Posted by in categories: biotech/medical, innovation

This 50-year-old NASA invention could kill cancer (via The Verge)

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Sep 7, 2018

Discovering the ancient origin of cystic fibrosis, the most common genetic disease in Caucasians

Posted by in categories: biotech/medical, genetics

Cystic fibrosis is the most common genetic disease among Caucasians. Now scientists believe they have discovered the origin of this often lethal genetic mutation and how it spread throughout Europe.

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Sep 7, 2018

From Within Your Own Failing Shell

Posted by in categories: biotech/medical, life extension

What does it feel like when you know your doctor can’t really help you?


Some time ago, I noticed a stock photo of an old lady seeing her geriatrician, who was a much younger woman. Nothing special was happening in the picture, which showed just two people talking; however, it made me wonder what it must feel like to be an elderly person consulting a geriatrician.

One initial assumption could be that it isn’t much different than seeing a GP, but that seems unlikely. If you are seeing a GP, the odds are your disease or ailment is not debilitating, let alone life-threatening. Whatever it might be, you went to see your doctor knowing that, most likely, he or she would be able to cure you; especially if you are young, it’s probable that just taking a medicine for some time, or doing physical therapy, will make you better. You know that you will recover, and the discomfort or the suffering you’re going through is destined to go away. You will get back to your life as it used to be, healthy as ever.

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