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Archive for the ‘biotech/medical’ category: Page 782

Feb 25, 2023

U.S. involved in multi-country Shigella outbreak

Posted by in category: biotech/medical

A dozen countries, including the United States, have reported more than 250 Shigella infections in people who went to Cape Verde.

An increase in shigellosis cases, mainly caused by Shigella sonnei, among travelers returning from Cape Verde, also known as Cabo Verde, has been reported in Europe, the United Kingdom, and the United States since September 2022.

Twelve countries have recorded 221 confirmed Shigella sonnei infections and 37 possible cases, all with a link to Cape Verde, which is in West Africa. The UK has the most cases with 95, followed by the Netherlands with 47, Sweden with 42, and France with 31. The United States has four patients.

Feb 25, 2023

How Your Thoughts Change Your Brain, Cells, and Genes

Posted by in categories: biotech/medical, chemistry, neuroscience

Every minute of every day, your body is physically reacting, literally changing, in response to the thoughts that run through your mind.

It’s been proven over and over again that just thinking about something causes your brain to release neurotransmitters, chemical messengers that allow it to communicate with parts of itself and your nervous system. Neurotransmitters control virtually all of your body’s functions, from hormones to digestion to feeling happy, sad, or stressed.

Studies have shown that thoughts alone can improve vision, fitness, and strength. The placebo effect, as observed with fake operations and sham drugs, for example, works because of the power of thought. Expectancies and learned associations have been shown to change brain chemistry and circuitry which results in real physiological and cognitive outcomes, such as less fatigue, lower immune system reaction, elevated hormone levels, and reduced anxiety.

Feb 25, 2023

Transhumanism in the Age of ChatGPT: Five Thoughts from Transhumanist Zoltan Istavan

Posted by in categories: biotech/medical, ethics, life extension, neuroscience, robotics/AI, singularity, transhumanism

Here’s a new story on my AI & ChatGPT ideas from Singularity Group (Singularity University). Special thanks Steven Parton & Valeria Graziani:


In episode 90 of the Feedback Loop Podcast: “The Current State of Transhumanism,” we catch up with one of our first guests on the show, çΩΩ≈ΩΩ

The swift progress in biotechnology, artificial intelligence (AI), and neuroscience has been a significant contributor to the growth of transhumanism. Nevertheless, despite the increasing interest in this field, many remain apprehensive about the consequences of employing technology to augment the human body and mind. Ongoing discussions revolve around the ethics of creating superhumans, the possible hazards of artificial intelligence, and the potential societal impact of these technologies.

Continue reading “Transhumanism in the Age of ChatGPT: Five Thoughts from Transhumanist Zoltan Istavan” »

Feb 25, 2023

FDA authorizes first at-home test that can detect both flu and Covid-19

Posted by in categories: biotech/medical, health

If you’ve got a fever and a cough, you don’t necessarily have to go to the doctor anymore to find out if it’s the flu or Covid-19.

On Friday, the US Food and Drug Administration authorized what it says is the first at-home test that can tell users if they have the flu and/or Covid-19.

The test, made by California biotech company Lucira Health, uses a single self-collected nasal swab and can provide results in about half an hour. The test can be bought without a prescription. It’s authorized for anyone 14 and older for self-collection, or an adult can give it to a child 2 or older.

Feb 25, 2023

Cardiovascular Complications of Viral Respiratory Infections and COVID-19

Posted by in category: biotech/medical

Viral respiratory infections (VRI) are the most prevalent type of infectious diseases and constitute one of the most common causes of contact with medical care. Regarding the pathophysiology of the cardiovascular system, VRI can not only exacerbate already existing chronic cardiovascular disease (such as coronary artery disease or heart failure) but also trigger new adverse events or complications (e.g., venous thromboembolism), the latter particularly in subjects with multimorbidity or disease-related immobilization. In the current paper, we provide a narrative review of diverse cardiovascular complications of VRI as well as summarize available data on the pathology of the circulatory system in the course of coronavirus disease 2019 (COVID-19).

Feb 25, 2023

Artificial Intelligence in Colorectal Cancer Screening, Diagnosis and Treatment. A New Era

Posted by in categories: biotech/medical, information science, robotics/AI

The development of artificial intelligence (AI) algorithms has permeated the medical field with great success. The widespread use of AI technology in diagnosing and treating several types of cancer, especially colorectal cancer (CRC), is now attracting substantial attention. CRC, which represents the third most commonly diagnosed malignancy in both men and women, is considered a leading cause of cancer-related deaths globally. Our review herein aims to provide in-depth knowledge and analysis of the AI applications in CRC screening, diagnosis, and treatment based on current literature. We also explore the role of recent advances in AI systems regarding medical diagnosis and therapy, with several promising results. CRC is a highly preventable disease, and AI-assisted techniques in routine screening represent a pivotal step in declining incidence rates of this malignancy.

Feb 25, 2023

Cancer evolution is mathematical

Posted by in categories: biotech/medical, chemistry, evolution, genetics, health, mathematics

Cancer is not a uniform disease. Rather, cancer is a disease of phenotypic plasticity, meaning tumor cells can change from one form or function to another. This includes reverting to less mature states and losing their normal function, which can result in treatment resistance, or changing their cell type altogether, which facilitates metastasis.

In addition to direct changes in your DNA in cancer, a key driver of cancer progression is where and when your DNA is activated. If your DNA contains the “words” that spell out individual genes, then epigenetics is the “grammar” of your genome, telling those genes whether they should be turned on or off in a given tissue. Even though all tissues in the body have almost exactly the same DNA sequence, they can all carry out different functions because of chemical and structural modifications that change which genes are activated and how. This “epigenome” can be influenced by environmental exposures such as diet, adding a dimension to how researchers understand drivers of health beyond the DNA code inherited from your parents.

I’m a cancer researcher, and my laboratory at Johns Hopkins University studies how the differences among normal tissues are controlled by an epigenetic code, and how this code is disrupted in cancer. In our recently published review, colleague Andre Levchenko at Yale University and I describe a new approach to understanding cancer plasticity by combining epigenetics with mathematics. Specifically, we propose how the concept of stochasticity can shed light on why cancers metastasize and become resistant to treatments.

Feb 24, 2023

Testing shows people generate more respiratory aerosols during endurance exercise than resistance exercise

Posted by in categories: biological, biotech/medical, health

A team of biology researchers from Universität der Bundeswehr, Technische Universität München and the University of Cassino and Southern Lazio, has found that people exhale more aerosols when engaging in endurance exercise than they do when engaging in resistance exercise. The study is published in the Proceedings of the National Academy of Sciences.

As the global pandemic has progressed, scientists across the globe have studied various aspects of the SARS-CoV-2 virus spread. One such area of study has been comparison of types of activities that are more or less conducive to transmission of the .

In this new study, the researchers looked at exercise options and their related risk. Going to gyms to exercise is a popular way to keep in shape. But doing so can put people at risk from both airborne and surface viral and bacterial infections.

Feb 24, 2023

Human Mini-Brains Grafted Into Injured Rats Restored Their Sight

Posted by in categories: biotech/medical, neuroscience

A study published in Cell Stem Cell this month concluded that they can. Using brain organoids made from human cells, a team led by Dr. Han-Chiao Isaac Chen at the University of Pennsylvania transplanted the mini-brains into adult rats with substantial damage to their visual cortex—the area that supports vision.

In just three months, the mini-brains merged with the rats’ brains. When the team shone flashing lights for the animals, the organoids spiked with electrical activity. In other words, the human mini-brain received signals from the rats’ eyes.

Continue reading “Human Mini-Brains Grafted Into Injured Rats Restored Their Sight” »

Feb 24, 2023

Mind-Blowing AI Breakthroughs in Science (Physics, Astrophysics and Math)!

Posted by in categories: biotech/medical, mathematics, robotics/AI, science

Now, THIS is useful AI — controlling Nuclear Fusion reactions.


#AI #Deepmind #GTC23
In this Video I discuss Recent AI Breakthroughs in Science — in Physics, Astrophysics… and Math!

Continue reading “Mind-Blowing AI Breakthroughs in Science (Physics, Astrophysics and Math)!” »

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