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Archive for the ‘biotech/medical’ category: Page 2054

Jun 20, 2019

CRISPR babies: when will the world be ready?

Posted by in categories: bioengineering, biotech/medical

Nature asked researchers and other stakeholders what hurdles remain before heritable gene editing could become acceptable as a clinical tool. Although some scientific challenges are probably surmountable, approval on a grand scale is likely to require changes to how clinical trials are run, as well as a broader consensus about the technology.


Efforts to make heritable changes to the human genome are fraught with uncertainty. Here’s what it would take to make the technique safe and acceptable.

Jun 19, 2019

Cleveland Clinic performs its first in utero surgery on fetus, repairs spina bifida before baby’s birth

Posted by in category: biotech/medical

CLEVELAND — The Cleveland Clinic has joined other top hospitals in North America and can now offer in utero surgery. The hospital announced Wednesday that after more than a year of preparations they have successfully completed Northern Ohio’s first ever surgery on a fetus inside the uterus to repair spina bifida.

“The operation on the fetus in the uterus, I’m directing and in charge of, and the guidance of where we should open the uterus, the exposure of the baby,” said Dr. Darrell Cass, Director of Fetal Surgery in the Cleveland Clinic’s Fetal Center.

Cass and a team of more than a dozen other specialists including pediatric neurosurgeons, a fetal cardiologist and pediatric anesthesiologists performed the surgery on a nearly 23-week fetus with the birth defect spina bifida in February.

Jun 19, 2019

Mind Over Matter: Cognitive Neuroengineering

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

I had a little more invested in BCI.


Brain-machine interface—once the stuff of science fiction novels—is coming to a computer near you. The only question is: How soon? While the technology is in its infancy, it is already helping people with spinal cord injuries. Our authors examine its potential to be the ultimate game changer for any number of neurodegenerative diseases, as well as behavior, learning, and memory.

Jun 19, 2019

Survival to Age 90 in Men: The Tromsø Study 1974–2018

Posted by in categories: biotech/medical, health

https://doi.org/10.3390/ijerph16112028 The aim of this study was to identify risk factors, individually and in combination, and their impact on reaching up to 90 years of age. The 738 oldest men who participated in the first survey of the population-based Tromsø Study (Tromsø 1) in Norway in 1974 have now had the chance to reach the age of 90 years. The men were also invited to subsequent surveys (Tromsø 2–7, 1979–2016) and have been followed up for all-cause deaths. This study sought to investigate what could be learned from how these men have fared. The men were born in 1925–1928 and similar health-related data from questionnaires, physical examination, and blood samples are available for all surveys. Survival curves over various variable strata were applied to evaluate the impact of individual risk factors and combinations of risk factors on all-cause deaths. At the end of 2018, 118 (16.0%) of the men had reached 90 years of age. Smoking in 1974 was the strongest single risk factor associated with survival, with observed percentages of men reaching 90 years being 26.3, 25.7, and 10.8 for never, former, and current smokers, respectively. Significant effects on survival were also found for physical inactivity, low income, being unmarried, high blood pressure, and high cholesterol. For men with 0–4 of these risk factors, the percentages reaching 90 years were 33.3, 24.9, 12.4, 14.4, and 1.5, respectively. Quitting smoking and increasing physical activity before 55 years of age improved survival significantly. Men should refrain from smoking and increase their physical activity, especially those with low income, those who are unmarried, and those with high blood pressure and high cholesterol. A limitation is that data on women not were collected; Quitting smoking and increasing physical activity before 55 years of age improved survival significantly.

Jun 19, 2019

Submission to the Immortality Project conducted by University of California, Riverside – Dr Janni Lloyd

Posted by in categories: biotech/medical, life extension, quantum physics

I’m Dr Janni Lloyd. My interest in health formally began in 1973 when I commenced my medical degree at the University of Western Australia. I spent many years in General Practice with a special interest in the psychological and emotional aspects of health maintenance and disease creation. In 1994 I moved into Holistic / Alternative / Complementary health. In 1992 I began studying Healthy Longevity / Indefinite Life Extension and the philosophy of Physical Immortality from many different perspectives – spirituality/theology, holistic health, psychology, medical science and quantum physics.

The following essay/article combines many of these different viewpoints.

HEALTHY LIFE EXTENSION / PHYSICAL IMMORTALITY – THE MASS POSSIBILITY

Jun 19, 2019

Biology of leptin, the hunger hormone, revealed

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

In a new study, Yale researchers offer insight into leptin, a hormone that plays a key role in appetite, overeating, and obesity. Their findings advance knowledge about leptin and weight gain, and also suggest a potential strategy for developing future weight-loss treatments, they said.

The study, led by investigators at Yale and Harvard, was published the week of June 17, 2019, in the Proceedings of the National Academy of Sciences.

Leptin, which is secreted by fat cells, informs the brain when fuel stored in body fat and in the liver is becoming depleted. It has not been well understood how low leptin concentrations in plasma — the largest component of blood — increase appetite. The researchers studied the biology of leptin in rodents. They also investigated the influence of nerve cells in the brain known as AgRP neurons, which regulate eating behavior.

Jun 19, 2019

Dr. Dennis McKenna — ideaXme — Psychedelic Drugs in Mainstream Medicine — Ira Pastor

Posted by in categories: aging, bioengineering, biotech/medical, business, chemistry, finance, health, life extension, neuroscience

Jun 19, 2019

Biotech Investing in Longevity Panel 2: Aubrey de Grey, Gordon Lithgow, Mike West

Posted by in categories: biotech/medical, life extension

Collaborate toward positive futures: https://www.existentialhope.com/

Jun 19, 2019

How common gut bacteria trigger a lethal autoimmune disease

Posted by in categories: biotech/medical, genetics

What causes the immune system, designed to protect us, to turn on the body and attack healthy cells? Common bacteria that reside in the human gut may be partly to blame, say Yale researchers, who studied the origins of a serious autoimmune disease that frequently affects young women.

For their study, the research team focused on cells from patients with antiphospholipid syndrome, an disorder that raises the risk of blood clots. This chronic condition can lead to lung clots, strokes, heart attacks, and in pregnant women, miscarriages or still births.

Using patient immune cells and antibodies, as well as animal models of the disease, the investigators did several experiments to explore the phenomenon. They found that a , Roseburia intestinalis, can trigger the disease in individuals who have a genetic predisposition. In those patients, the immune system’s defender T and B cells react to a blood protein involved in clotting, and also to the bacteria, in certain found in the bacteria. Over time, this ongoing “cross-reactive” response leads to tissue damage and chronic disease.

Jun 19, 2019

First-ever successful mind-controlled robotic arm without brain implants

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

A team of researchers from Carnegie Mellon University, in collaboration with the University of Minnesota, has made a breakthrough in the field of noninvasive robotic device control. Using a noninvasive brain-computer interface (BCI), researchers have developed the first-ever successful mind-controlled robotic arm exhibiting the ability to continuously track and follow a computer cursor.

Being able to noninvasively control robotic devices using only thoughts will have broad applications, in particular benefiting the lives of paralyzed patients and those with movement disorders.

BCIs have been shown to achieve good performance for controlling robotic devices using only the signals sensed from . When robotic devices can be controlled with high precision, they can be used to complete a variety of daily tasks. Until now, however, BCIs successful in controlling robotic arms have used invasive brain implants. These implants require a substantial amount of medical and surgical expertise to correctly install and operate, not to mention cost and potential risks to subjects, and as such, their use has been limited to just a few clinical cases.