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When blood pressure needs more control, what’s better: An additional drug or more of the same? Posted: 04 Oct 2021 05:34 PM PDT Nearly 34 million Americans have blood pressure that's still too high even though they take medicine to control it. A new study may help them and their doctors decide whether to increase the dose of one of their existing drugs, or add a new one, to bring down their pressure and lower their risk of future health problems. |
Exposure to deadly urban heat worldwide has tripled in recent decades, says study Posted: 04 Oct 2021 12:37 PM PDT A new study of more than 13,000 cities worldwide has found that the number of person-days in which inhabitants are exposed to extreme combinations of heat and humidity has tripled since the 1980s. The authors say the trend, which now affects nearly a quarter of the world's population, is the combined result of both rising temperatures and booming urban population growth. |
Cell 'quakes' may help cells respond to the outside world Posted: 04 Oct 2021 12:37 PM PDT New computer simulations reveal that sudden restructuring of the cytoskeleton, or scaffolding, inside animal cells is caused by the slow buildup and rapid release of mechanical energy. Called cytoquakes, these disturbances may help the cell respond rapidly to signals from the outside environment, like chemicals produced by other cells or hormones in the bloodstream. |
Comparable survival for pacemaker wearers after heart valve replacement Posted: 04 Oct 2021 11:37 AM PDT Researchers have examined long-term outcomes in patients who received pacemaker implantations after transcatheter aortic valve replacement through their groin. The result showed no significant difference in mortality for the patients with pacemakers compared to those without. |
'Think twice' campaign could reduce risk of UK opioid epidemic Posted: 04 Oct 2021 11:37 AM PDT 'Think twice' campaign could reduce risk of UK opioid epidemic. A pilot campaign that urged GPs (family doctors) to 'think-twice' before putting a patient on opioid medicines was effective in reducing opioid prescribing in primary care, according to the findings of a major study. Although the reduction in the number of opioid prescriptions issued by individual GPs was small, when aggregated together they had a large effect. |
Facing compounding stressors, many American workers plan to change jobs in coming year Posted: 04 Oct 2021 11:03 AM PDT As the pandemic grinds on through a second year, many American workers are feeling the pressure, and many say they intend to leave their jobs within a year, according to a new survey. |
Brain-circuit discovery may help explain sex differences in binge drinking Posted: 04 Oct 2021 11:03 AM PDT A brain circuit that works as a 'brake' on binge alcohol drinking may help explain male-female differences invulnerability to alcohol use disorders, according to a preclinical study. |
Convalescent plasma futile as treatment for critically ill COVID-19 patients, study finds Posted: 04 Oct 2021 11:03 AM PDT An international research team effectively put an end to that practice with a clinical trial that concluded convalescent plasma is 'futile' as a COVID-19 treatment for most critically ill patients. |
Calculating the path of cancer Posted: 04 Oct 2021 11:03 AM PDT Scientists are using a new mathematical tool to predict how combinations of genetic mutations cause different types of tumors. |
Specific UV light wavelength could offer low-cost, safe way to curb COVID-19 spread Posted: 04 Oct 2021 08:51 AM PDT A specific wavelength of ultraviolet (UV) light is not only extremely effective at killing the virus which causes COVID-19, but is also safer for use in public spaces, finds new research. |
New mouse model unlocks drug testing of hormone-sensitive human breast cancer Posted: 04 Oct 2021 08:51 AM PDT Scientists have created mice with a hormone profile that causes growth and metastatic spread of implanted human breast tumors. Results show that the team created a new mouse breed, called NSG-Pro, that produces levels of human prolactin similar to those in patients with metastatic estrogen receptor-positive breast cancer. |
Treating severe depression with on-demand brain stimulation Posted: 04 Oct 2021 08:51 AM PDT Physicians have successfully treated a patient with severe depression by tapping into the specific brain circuit involved in depressive brain patterns and resetting them using the equivalent of a pacemaker for the brain. |
When the western US burns, the east also gets sick Posted: 04 Oct 2021 08:51 AM PDT While most of the largest U.S. wildfires occur in the Western U.S., almost three-quarters of the smoke-related deaths and visits to the emergency room for asthma occur east of the Rocky Mountains. A new study finds that smoke contributes to a larger percentage of health problems in the West, but affects greater numbers of people in the East. |
For unvaccinated, reinfection by SARS-CoV-2 is likely Posted: 04 Oct 2021 07:43 AM PDT Throughout the COVID-19 pandemic, there has been much uncertainty about how long immunity lasts after someone who is unvaccinated is infected with SARS-CoV-2. Now scientists have an answer. Strong protection following natural infection is short-lived. |
Comb breathalyzer is now a thousandfold more sensitive to disease biomarkers Posted: 04 Oct 2021 07:42 AM PDT Scientists have boosted the sensitivity of their decade-old frequency comb breathalyzer a thousandfold and can detect additional biomarkers of disease -- four now, with the potential for six more. When validated and engineered into a portable design, the comb system could offer real-time, noninvasive analysis of human breath to detect and monitor diseases. |
Emerging infectious disease caused by a new nairovirus identified in Japan Posted: 04 Oct 2021 07:42 AM PDT A previously unknown virus that can infect humans and cause disease has been identified by scientists in Japan. The novel infectious virus, named Yezo virus and transmitted by tick bites, causes a disease characterized by fever and a reduction in blood platelets and leucocytes. |
Glycerin is safe, effective in psoriasis model Posted: 04 Oct 2021 07:42 AM PDT Patients with psoriasis have reported that glycerin, an inexpensive, harmless, slightly sweet liquid high on the list of ingredients in many skin lotions, is effective at combating their psoriasis and now scientists have objective evidence to support their reports. |
The immune system's double agents Posted: 04 Oct 2021 07:42 AM PDT A new study examined the development of a glioblastoma cancerous tumor in animal models with a normal immune system, in order to best simulate the development of the tumor in humans. |
Link between Crohn’s disease and fatty tissue in the gut revealed Posted: 04 Oct 2021 07:42 AM PDT New research has revealed a direct link between fatty tissue and Crohn's disease. |
Inflammatory micro clots in blood of individuals suffering from Long COVID Posted: 04 Oct 2021 07:41 AM PDT Researchers have found an overload of various inflammatory molecules, 'trapped' inside insoluble microscopic blood clots (micro clots), in the blood of individuals suffering from Long COVID. |
Posted: 04 Oct 2021 07:41 AM PDT A second dose of the COVID-19 vaccine should be offered to individuals infected with the virus shortly after receiving the first dose, a new study suggests. |
More memory B cells exist in those fully vaccinated with previous SARS-CoV-2 infection, study says Posted: 04 Oct 2021 07:41 AM PDT A new study shows differences in immune responses among those vaccinated, including the amount of memory B cells and their vaccine binding performance. |
Prescribed blood thinners can help reduce hospitalizations related to COVID-19, study finds Posted: 02 Oct 2021 09:30 AM PDT A new study finds that having a protocol to use blood thinners for COVID-19 patients reduces patient COVID-19 mortality by almost half. |
Details behind kidney transplant recipients' immune response to the virus that causes COVID-19 Posted: 02 Oct 2021 09:30 AM PDT A recent study examined the spectrum of antibody responses -- including IgG, IgM, and IgA antibodies -- in kidney transplant recipients infected with the virus that causes COVID-19. The antibody response to infection is delayed but preserved in kidney transplant recipients. |
Research associates excess body weight with COVID-19 mortality Posted: 02 Oct 2021 09:29 AM PDT Links between obesity and mortality have become increasingly evident, since the earliest pandemic of the 21st century, leading researchers to investigate if excess body weight may have been associated with high rates of COVID-19 mortalities around the globe. |
COVID-19 may trigger hyperglycemia and worsen disease by harming fat cells Posted: 01 Oct 2021 10:02 AM PDT COVID-19 may bring high risks of severe disease and death in many patients by disrupting key metabolic signals and thereby triggering hyperglycemia, according to a new study. |
Cancer patients on chemotherapy likely not fully protected by COVID-19 vaccine, study finds Posted: 01 Oct 2021 07:04 AM PDT Researchers find lower immune response to COVID-19 vaccine for patients on chemotherapy; third dose of Pfizer-BioNTech vaccine boosts immune response. |
Allergic stimulation activates mast cell precursor cells Posted: 30 Sep 2021 11:07 AM PDT Mast cell precursor cells do not just cause an increase in mature mast cells during inflammation, they also play an active role in diseases like asthma, according to a new study. |
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