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Category: biotech/medical – Page 2,431

Wireless Brain Sensors – A Breakthrough in Medical Devices Industry

In the era of modern world, medicals advances are evident everywhere. Recently, a team of doctors, researchers and scientists have collaborated to create an electronic biosensor which can be incorporated inside a brain to measure or determine the pH, temperature, flow rates and pressure of the brain. Moreover, it dissolves when no longer needed without the need of any surgical procedure. It is widely applicable in Neuroscience field as brain trauma and injuries kill around 50,000 people per year in the USA alone. These kinds of injuries often cause the brain to swell, which constricts the flow of blood and oxygen, and can lead to permanent damage. So surgeons need reliable ways of monitoring the pressure inside their patients’ head. Earlier, sensors that existed were usually large, heavy and solid, thus had to be removed once the patient recovered. But bioresorbable wireless brain sensors are light, handy and could be easily inserted inside the brain to monitor intracranial pressure and temperature. Once the implantable device is not needed, it is absorbed by the body, eliminating the need of surgically removing the device.

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Wireless brain sensors are devices that help monitoring the temperature, detecting the intracranial pressure, and record brain signaling in the form of brain waves. The essential aim of this wireless brain sensor is of securing the person from emergency situations. The devices are primarily used for patients experiencing conditions such as sleep disorders, traumatic brain injury, dementia, Parkinson’s disease, and other neurological conditions. These devices aid in observing and monitoring the neurological deviations and provide support for improving the cognitive functionalities. Accessibility of these sensors is easy from a remote area through wireless connectivity and be integrated with smart phones, tablets and computers, consequently be monitored intermittently from a homecare environment, making the device more cost-efficient.

How China’s tech firms are coping with the coronavirus downturn

Before the outbreak, China’s tech industry was already under pressure from the ongoing trade war with the US, which has seen expansion plans crimped by a tighter funding environment and macro economic slowdown. A rapid rise in the number of unemployed could pose a big challenge for the world’s second-largest economy which has seen growth rates already slow to near three-decade lows.

A growing number of Chinese tech-related companies have adopted ‘self-rescue’ plans as the coronavirus epidemic disrupts their business operations.

OHSU doctors perform first CRISPR gene-editing procedure in human body

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Stanford Doctor to Get $191 Million for Cancer-Fighting Biotech

A Stanford University professor and stem cell pioneer whose first job in science paid $25 a month is poised to receive a $191 million windfall from the sale of the immunotherapy biotech firm he co-founded.

Irv Weissman, 80, owns 4.2% of Forty Seven Inc., which Gilead Sciences Inc. agreed to buy for about $4.9 billion, a remarkable amount considering the company’s market value was less than $250 million just five months ago.

Geneticists pump the brakes on DNA, revealing key developmental process

Researchers at Princeton University have revealed the inner workings of a gene repression mechanism in fruit fly embryos, adding insight to the study of human diseases.

Led by graduate student Shannon Keenan, the team used light to activate in developing and traced the effects on a protein called Capicua, or Cic. Located in a cell’s nucleus, Cic binds to DNA and performs the specialized task of silencing . The study, published in Developmental Cell and made available online March 5, reveals the dynamics of gene repression by this protein.

In a complex piece of music, the silences running through the melody contribute as much to the score’s effect as the sounded notes. The that control development rely on highly sophisticated temporal patterns of gene activation and repression to create life’s beautiful symphonies. When a pattern is disrupted, it’s like a wrong note in the music. In this case, Cic is a repressor protein that silences certain parts of the genome, allowing other genes to express in harmony with one another. Understanding how repressors like Cic work allows researchers to better conduct the orchestra.

Origin and evolution of pathogenic coronaviruses

The origins are still too unknown. This is entirely new life a more parasitic lifeform. Bit still new lifeforms entirely. My experiencers tell me of alien origin though the rate of spread also the complexity. No human could make this no even government can make this. We can mimic life not create something new. Sure new things can be added but the signature tells me it is definitely of alien origin. Not even nature can create something this quick nor even governments. Sure there may be like similar things but why does it spread so fast in near systematic precision. Which leads to essentially of exterrestial origin. This is essentially new life we are dealing with.

Nat Rev Microbiol. 2019 Mar;17:181–192. doi: 10.1038/s41579-018‑0118-9.

Severe acute respiratory syndrome coronavirus (SARS-CoV) and Middle East respiratory syndrome coronavirus (MERS-CoV) are two highly transmissible and pathogenic viruses that emerged in humans at the beginning of the 21st century. Both viruses likely originated in bats, and genetically diverse coronaviruses that are related to SARS-CoV and MERS-CoV were discovered in bats worldwide. In this Review, we summarize the current knowledge on the origin and evolution of these two pathogenic coronaviruses and discuss their receptor usage; we also highlight the diversity and potential of spillover of bat-borne coronaviruses, as evidenced by the recent spillover of swine acute diarrhoea syndrome coronavirus (SADS-CoV) to pigs.

Chimeric Vaccine

Whether man made or alien made or whatever a chimeric vaccine could essentially cure the illness.

Chimeric vaccines consisting of a series of immunodominant epitopes have been explored in the development of vaccines against malaria ( Hanson and Edelman, 2004 ; Caro-Aguilar et al., 2005 ), group A streptococci ( Dale, 1999 ; Hu et al., 2002 ; Kotloff et al., 2004 ; Kotloff and Dale, 2004 ; Dale et al., 2005 ; McNeil et al., 2005 ), and several viruses ( Wang et al., 1999d ; Bouche et al., 2005 ; Fan et al., 2005 ; Apt et al., 2006 ). Data suggest that a broadly protective OspC vaccine will require the inclusion of epitopes from approximately 28 OspC types ( Earnhart and Marconi, 2007c ). Such a construct is predicted to provide protection against all major Lyme disease spirochete species associated with human disease, and to be effective in both Europe and North America. Possible cross-protection elicited by some epitopes may reduce the total number of epitopes required to achieve this goal.

A prototype tetravalent chimeric recombinant OspC-based vaccine has been produced that incorporates epitope-containing regions from types A, B, K, and D. This “ABKD” vaccine elicited antibodies in mice that bind OspC as presented on the surface of intact and viable spirochetes and mediate bactericidal activity by a complement-dependent mechanism ( Buckles et al., 2006 ; Earnhart et al., 2007 ). It is noteworthy that a decrease in epitope-specific titer was observed for epitopes progressing from the N- to the C-terminus of the chimeric protein. The antibody titer to the type D epitope was 1.7 logs lower than that observed for the N-terminally located type A epitope ( Earnhart et al., 2007 ). This effect did not appear to be due to C-terminal degradation of the construct since the addition of C-terminal tags that have been reported to stabilize recombinant proteins did not improve antibody titer ( Earnhart and Marconi, 2007a ).

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