Controlling bacteria with sound — The Verge

The question of how we can win the battle against cancer has puzzled researchers for decades. Most tumors near the surface are relatively easy to reach with medicines, but what about those located deep in the body? Recently, the field of cell therapy has shown great promise in fighting these tumors. Cell therapy is when you transplant external cells into the body and engineer them to fight a tumor or repair a tissue.

This goes hand in hand with the discovery that some bacteria thrive near tumors. You could, theoretically, engineer bacteria to deploy medicines near hard-to-reach tumors, but there…


Mice — Stanford

Researchers have long thought that genetic “noise” that builds up over time has some cause in aging. After all, “younger” cells with less “noise” have been shown to regenerate more and heal quicker. The theory is that as cells age, they gradually lose their heal rapidly and regenerate through epigenetics — a process that controls how often genes, including those that control aging, are expressed. Researchers thought that if they could find some way to reverse these epigenetic markers that limit older cells’ abilities to regenerate, they would be able to trigger regeneration in cells that normally don’t heal.

Epigenetics: A Potential Cause Of Aging

Every…


Pig + liver — Futurism

Over 107,000 people need an organ transplant. 17 die every day waiting for one. To make this organ crisis even worse, a person is added to the transplant waiting list every 9 minutes.

To get an organ transplant, several factors need to match between the donor and the recipient. Just a few of them are blood type, body size, and the distance between the donor’s hospital and the patient’s hospital. Because of this, it’s often very hard to get transplant quickly, unless you’re on the verge of dying.

Enter pigs. Xenotransplantation — organ transplants from pigs to humans — could…


Aging — Clinical OMICS

Telomere Shortening: A Major Cause Of Aging

Aging is thought to have many causes. DNA damage, biological stress, and depletion of stem cells are just a few. However, a theory that has a lot of support is telomere shortening.


Stress — Economic Times

Stress is known to have many negative effects, particularly on the nervous system. Increase in mental illness, changes in the brain’s structure, brain cell loss, and brain shrinkage are just a few.

A group of Cornell researchers, led by Dr. Jihye Paik, wanted to see how stress affects the ability of stem cells in the brain to differentiate. Stem cells are the “youngest” type of cell. Once a stem cell has matured, it can “differentiate,” or develop into a specialized type of cell, such as a red blood cell or a liver cell. Stem cell differentiation is critical to the…


Human evolution — Britannica

Why are humans “smarter” than other animals? Scientists have wondered for ages what genetic changes have made humans special. Even though Neanderthals and Denisovans (our closest genetic relatives) were very smart, modern humans are still smarter. The specific mutation that has led to our advanced neurological development has puzzled researchers for ages. However, the discovery of the gene NOVA1 shows that the “human version” of NOVA1 is crucial to the advanced neurodevelopment of modern humans.

NOVA1: The Gene That Makes Modern Humans Smart

A group of researchers, led by Cleber A. Trujillo, wanted to find out the genetic causes behind why modern humans are more neurologically advanced than…


Genetic Engineering — Wikipedia

Progeria and the cell

Progeria, or Hutchinson–Gilford progeria syndrome, is a rare genetic disorder that causes premature aging in young children. This aging is often so significant that the average lifespan of a child with progeria is just 14 years.


Reversing Aging — The Independent

The Biology of Old Age

There are many suggested causes of old age. Telomere shortening, DNA damage, and depletion of stem cells are just a few of the proposed sources.


Llama — Wikipedia

Nanobodies: Small, but Strong

Antibodies (aka immunoglobulins) are fundamental to almost every vertebrate’s immune system. Antibodies are proteins generated by plasma cells that bind to the outside of pathogens or any other things that trigger the immune systems. By binding to the pathogens, the antibodies hinder their ability carry out certain functions and make them easily identifiable to T-cells, which will kill the antibody-tagged pathogen off.


Cancer cells being attacked by the immune system — News Medical

Cancer and Mutations

At its core, each cancer cell is just a malfunctioning cell. Cancer cells grow and reproduce tirelessly, while draining resources without producing anything for the body, to an extent that is dangerous. This abnormal growth and reproduction is caused by one thing: mutations.

Mutations happen multiple times in every day, however, the only mutations cause a cell to become cancerous are in proto-oncogenes. Proto-oncogenes are genes that, when mutated, have the ability to cause unnecessary and dangerous growth or reproduction in a cell or allow it to reproduce with mutations. Take, for example, the p53 gene. p53 is crucial to…

Om Khangaonkar

Science lover. Writer. Contact me at reachomk@gmail.com

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