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Archive for the ‘biotech/medical’ category: Page 2323

Jan 25, 2018

Bioquark Inc. — In Touch Rugby Magazine — Ira Pastor

Posted by in categories: aging, biotech/medical, disruptive technology, DNA, food, health, life extension, neuroscience, science, singularity

https://www.intouchrugby.com/magazine/feature-diet-nutrition…re-part-1/

Jan 25, 2018

Graphene based glucose-monitoring contact lens comfortable enough to wear

Posted by in categories: biotech/medical, materials

A team of researchers with the Ulsan National Institute of Science and Technology in the Republic of Korea has developed a glucose monitoring contact lens that its makers claim is comfortable enough to wear. In their paper published on the open access site Science Advances, the group describes their contact lens and suggests it could be ready for commercial use within five years.

Diabetes results in unmanageable , requiring those who have the disease to monitor and adjust them with insulin or medicine. Monitoring, unfortunately, requires pricking a finger to retrieve a blood sample for testing, which most people do not like. For that reason, scientists seek another way. A new method employs a . Prior research has shown glucose levels in tears follows that of glucose levels in the blood in many respects. To date, there are no commercially available contact products because, as the researchers note, they are made of hard materials that are uncomfortable in the eye. They claim to have overcome that problem by breaking apart the pieces of their sensing device and encapsulating each in a soft polymer and then connecting them together in a flexible mesh.

The polymer is the same type used in conventional contact lenses. The components of the device consist of a graphene-based sensor, a rectifier, LED display and a stretchable antenna. Power for the sensor is still external—it is held in the air a minimum of nine millimeters from the lens. The LED glows during normal conditions and turns off when high levels of are detected. The flexibility of the lens and sensor components also allows for removal of the device in the same way as normal contact lenses—by grabbing and bending.

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Jan 25, 2018

Bioquark Inc. — Caring For Aging Parents Podcast — Ira Pastor

Posted by in categories: aging, bioengineering, biotech/medical, business, cryonics, DNA, genetics, health, life extension

https://player.fm/series/caring-for-aging-parents/reversing-…ira-pastor


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Jan 25, 2018

Top Journal Reveals Keys to Telomere Length and Human Disease

Posted by in categories: biotech/medical, life extension

New extensive study shares recent discoveries and sheds light on the role of telomere length in human diseases and aging. Part 3 of 3.

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Jan 25, 2018

Chinese Scientists Just Cloned a Monkey—Here Are the Details

Posted by in category: biotech/medical

https://youtube.com/watch?v=VHizi6njTag

In 1996, Dolly the sheep became the first mammal to be cloned from a somatic cell. Twenty years later, scientists have succeeded in using the same technique on primates—as detailed in a study published today in the journal Cell, two long-tailed macaque monkeys were born at the Chinese Academy of Sciences Institute of Neuroscience in Shanghai.

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Jan 25, 2018

TIGIT as a Biomarker for T Cell Senescence and Exhaustion

Posted by in categories: biotech/medical, life extension

In a new study, researchers propose that TIGIT is a marker of T cell senescence and exhaustion in the immune system. However, not only is TIGIT just a biomarker, it is also a potential therapeutic target; as the researcher team discovered, lowering levels of TIGIT resulted in the restoration of some lost function in T cell populations that were experiencing high levels of senescence and exhaustion.


In a new study, researchers propose that TIGIT is a marker of T cell senescence and exhaustion in the immune system[1]. However, not only is TIGIT just a biomarker, it is also a potential therapeutic target; as the researcher team discovered, lowering levels of TIGIT resulted in the restoration of some lost function in T cell populations that were experiencing high levels of senescence and exhaustion.

Aging is associated with immune dysfunction, especially T-cell defects, which result in increased susceptibility to various diseases. Previous studies showed that T cells from aged mice express multiple inhibitory receptors, providing evidence of the relationship between T-cell exhaustion and T-cell senescence. In this study, we showed that T-cell immunoglobulin and immunoreceptor tyrosine-based inhibitory motif (ITIM) domain (TIGIT), a novel co-inhibitory receptor, was upregulated in CD8 + T cells of elderly adults. Aged TIGIT + CD8 + T cells expressed high levels of other inhibitory receptors including PD-1 and exhibited features of exhaustion such as downregulation of the key costimulatory receptor CD28, representative intrinsic transcriptional regulation, low production of cytokines, and high susceptibility to apoptosis. Importantly, their functional defects associated with aging were reversed by TIGIT knockdown.

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Jan 25, 2018

DARPA Wants to Build an Image Search Engine out of DNA

Posted by in category: biotech/medical

And your photos could end up in its database.

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Jan 24, 2018

Scientists Just Cloned Monkeys. Humans Could Be Next

Posted by in category: biotech/medical

Since the birth of Dolly the sheep in 1996, scientists across the globe have used the same technique to clone nearly two dozen other animal species, including cats, dogs, rats, and cattle. Primates, however, had proven resistant to the process — until now.

In a new study published in Cell, a team of Chinese researchers led by Qiang Sun at the Chinese Academy of Sciences Institute of Neuroscience in Shanghai reveal that they’ve found a way to tweak the Dolly cloning technique to make it work in primates. Their efforts have resulted in the birth of two cloned female macaques: Zhong Zhong and Hua Hua.

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Jan 24, 2018

Identical monkeys born through true cloning

Posted by in categories: biotech/medical, innovation

The first monkeys have been cloned in a historic breakthrough — could humans be next?

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Jan 24, 2018

Tiny implant opens way to deliver drugs deep into the brain

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

WASHINGTON — Scientists have created a hair-thin implant that can drip medications deep into the brain by remote control and with pinpoint precision.

Tested only in animals so far, if the device pans out it could mark a new approach to treating brain diseases — potentially reducing side effects by targeting only the hard-to-reach circuits that need care.

“You could deliver things right to where you want, no matter the disease,” said Robert Langer, a professor at the Massachusetts Institute of Technology whose biomedical engineering team reported the research Wednesday.

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