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Archive for the ‘genetics’ category: Page 401

Oct 23, 2018

Protein Produced by Astrocytes Involved in Brain Plasticity

Posted by in categories: genetics, neuroscience

Protein Chrdl1 appears to regulate brain plasticity.


Researchers from the Salk Institute have discovered that a protein called Chrdl1, secreted by astrocytes, is responsible for driving synapse maturation and limiting brain plasticity later in life [1].

Abstract

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Oct 22, 2018

Dr. Sam Palmer – Thymic Involution and Cancer Risk

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

Cancer is the poster child of age-related diseases, and a recent study sheds light on why the risk of cancer rises dramatically as we age.

Abstract

For many cancer types, incidence rises rapidly with age as an apparent power law, supporting the idea that cancer is caused by a gradual accumulation of genetic mutations. Similarly, the incidence of many infectious diseases strongly increases with age. Here, combining data from immunology and epidemiology, we show that many of these dramatic age-related increases in incidence can be modeled based on immune system decline, rather than mutation accumulation. In humans, the thymus atrophies from infancy, resulting in an exponential decline in T cell production with a half-life of ∼16 years, which we use as the basis for a minimal mathematical model of disease incidence. Our model outperforms the power law model with the same number of fitting parameters in describing cancer incidence data across a wide spectrum of different cancers, and provides excellent fits to infectious disease data.

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Oct 21, 2018

Forest Organics — Regenerative And Rejuvenative Health And Wellness

Posted by in categories: aging, biotech/medical, disruptive technology, finance, genetics, health, life extension, posthumanism, science

Congratulations to the Forest Organics team and their awesome new site — https://www.myforestorganics.com/

Oct 20, 2018

Deafness could be reversed? Scientists discover how to regrow lost cells in the ear

Posted by in categories: biotech/medical, genetics

Could deafness be reversed? Scientists re-grow damaged hair cells that have been killed off by age or noise inside the ear…


Researchers from the University of Rochester found that viruses, genetics and even existing drugs could cause little hairs to regrow in the inner ear. These hairs pick up on noises entering the ear.

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Oct 19, 2018

Joe Betts Lacroix – Entrepreneurial Focuses on Aging

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

Earlier this year, we hosted the Ending Age-Related Diseases 2018 conference at the Cooper Union, New York City. This conference was designed to bring together the best in the aging research and biotech investment worlds and saw a range of industry experts sharing their insights.

Joe Betts Lacroix of Y Combinator and Vium discusses the different ways in which entrepreneurs can focus on overcoming the diseases of aging, namely direct, indirect, and money-first approaches, and the strengths and weakness of each.

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Oct 18, 2018

CRISPR heals genetic liver disorder in mice

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

Researchers healed mice with a genetic metabolic disorder that also affects humans by using a new editing tool to target and correct genetic mutations.

Some babies are born with the metabolic disorder phenylketonuria and need a special diet so that the amino acid phenylalanine doesn’t accumulate in the body. Excess phenylalanine delays mental and motor development. If left untreated, the children may develop mental disabilities.

The cause of this metabolic disorder is a mutation in a gene that provides the blueprint for the enzyme phenylalanine hydroxylase (Pah). The enzyme, which is produced by the cells of the liver, metabolizes phenylalanine.

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Oct 17, 2018

Stephen Hawking left us bold predictions on AI, superhumans, and aliens

Posted by in categories: climatology, genetics, robotics/AI, sustainability

The good news: Humanity will survive climate change. The bad news: The only ones who do will be genetically modified superhumans.

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Oct 16, 2018

Bioquark Inc. — Real Bodies — Ms. Chiara Bordi — HealthQe — QantiQa — Ira Pastor

Posted by in categories: aging, biological, biotech/medical, cryonics, DNA, futurism, genetics, health, science, transhumanism

Exciting visitor at the Real Bodies (https://www.realbodies.it/) exhibit!

The lovely Ms. Chiara Bordi (https://www.facebook.com/Chiara-Bordi-474572166390000/), Miss Italia 3rd place runner up (aka the “Bionic Beauty”) stopping by to visit our associates at HealthQE (www.healthqe.cloud), and QantiQa (https://www.qantiqa.com/), to test out their new Musyke device

Bio-mechanics and Bio-acoustics

Two critical components in the regeneration, repair, and rejuvenation equation, and part of the integrated age-reversal paradigm of Embrykinesis at Bioquark Inc.- (www.bioquark.com)

Oct 15, 2018

Photo-catalytic Killing of HeLa Cancer Cells Using Facile Synthesized Pure and Ag Loaded WO3 Nanoparticles

Posted by in categories: biotech/medical, genetics, health, nanotechnology

The cancer is a group of diseases characterized by the uncontrolled growth and spread of abnormal cells, and in most of the cases develop into malignant masses of tissues called tumors, and it is the leading causes of mortality and a major public health challenge worldwide. In normal body, genes in the cell nucleus, containing long strings of DNA (deoxyribonucleic acid) regulate the controlled division and function of cells and any damage to DNA causes the mutation of genes, which in turn triggers the uncontrolled division of abnormal cells, leading to the damage of vital organs. Cancer cells can detach from the original mass of tumor and migrate to new locations through blood and lymphatic system and also cancer cells produce enzymes that are capable of breaking the normal cells. For cancer diagnostics, the conventional histopathological and radiological examinations are still used for evaluating the clinical and pathologic staging, needed for cancer treatments. Depends on the stage of cancer development, different treatment options like chemotherapy, radiation therapy, stem cell transplant, immunotherapy, hormone therapy, targeted drug therapy and surgery are advised. The major disadvantages of the available advanced treatment options include non localized invasion to other body parts, intolerable cytotoxicity, unsystematic distribution of antitumor agents, immune to chemical agents, low bioavailability and limited option to evaluate the tumor cell response to therapies4,5. In spite of the drawbacks of these advanced treatment options, cancer is curable if it is diagnosed at an early stage.

Phototherapy has been used for the treatment of jaundice, cancer, dermatological conditions, and ophthalmological disorders by simply using the light of certain selected wavelength. Photodynamic therapy, on the other hand is a method of photosensitizing the action of drugs to kill cancer cells, but the major drawback of this treatment is that most of the drugs used for photodynamic therapy remain activated for a long time, leading to overdose to damage non cancer cells. In the photo-catalytic process, no drug is used, instead the nontoxic semiconductor photo-catalyst like WO3 generates electron hole pairs, when it is exposed to the light of appropriate wavelength and these photo-generated charge carriers mediate oxidation and reduction reactions in the cancer cell to eliminate them.

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Oct 15, 2018

Spontaneous genetic mutations in the womb may drive the majority of dementia cases

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

New research, led by scientists at the University of Cambridge, suggests spontaneous DNA mutations that occur when a baby’s brain is growing in the womb may help explain why so many people develop dementia without having any prior family history with the disease.

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