Potassium News and Research

RSS

Cardiovascular disease in COVID-19

The current COVID-19 pandemic is a primarily respiratory illness, manifesting with severe hypoxia and often progressing to acute respiratory distress syndrome (ARDS) and death. However, it is also known to be linked to a wide range of cardiovascular (CV) manifestations that are associated with a very poor prognosis.

13 Aug 2020

Study shows how mast cells regulate calcium levels to control the immune response

Instead of protecting us, the immune system can sometimes go awry, as in the case of autoimmune diseases and allergies. An Ludwig-Maximilian-Universitaet (LMU) in Munich team has dissected how mast cells regulate their calcium levels to keep the immune response under control.

23 Jul 2020

UTHSC researchers receive $2.4 million to study the role of cholesterol in brain artery health

Alex Dopico, MD, PhD, professor and Van Vleet Chair of Excellence in the Department of Pharmacology, Addiction Science, and Toxicology, and Anna Bukiya, PhD, associate professor in the Department of Pharmacology, Addiction Science, and Toxicology, have been awarded $2.4 million from the National Heart, Lung, and Blood Institute to explore how cholesterol interacts with the mechanisms that modulate blood vessel function in the brain.

16 Jul 2020

Compound in pickled capers can directly regulate proteins required for bodily processes

A compound commonly found in pickled capers has been shown to activate proteins required for normal human brain and heart activity, and may even lead to future therapies for the treatment of epilepsy and abnormal heart rhythms.

14 Jul 2020

Scientists identify a new role for covalent linker in transmembrane ion channels

In the molecular-level world of ion channels - passageways through membranes that carry signals in a cell's environment and allow it to respond - researchers have debated about the role of a small piece of the channel called a linker, says computational biophysicist Jianhan Chen at the University of Massachusetts Amherst.

10 Jul 2020

Novel drug could protect the brain during and after stroke

Neuroscientists at the University of Pittsburgh Brain Institute have identified a novel drug that could protect the brain during and after a stroke.

1 Jul 2020

GIRK channel activator can provide potential treatments for brain disorders

Potassium channels play an important role in controlling the electrical activity of neurons in the brain.

1 Jul 2020

Researchers identify a novel mutation through whole-exome sequencing

Long QT syndrome (LQTS), caused by an ion channel-related gene mutation, is a malignant heart disease with a clinical course of a high incidence of ventricular fibrillation and sudden cardiac death in the young.

27 Jun 2020

Researchers caution use of chloroquine therapy for patients at higher risk of heart rhythm abnormalities

A patient who met many of the published safety guidelines for chloroquine therapy against COVID-19 was observed to have a very abnormal ECG pattern after treatment began, leading to multiple episodes of torsade de pointes (TdP), a life-threatening arrhythmia in which the lower chambers of the heart beat out of sync with the upper chambers.

18 Jun 2020

Low potassium levels in COVID-19 disease

Now a new study by an Italian team of researchers published in June 2020 on the preprint server medRxiv reports that potassium levels are often low in COVID-19 disease, mostly due to the urinary loss of potassium.

17 Jun 2020

Steroidal drugs subvert SARS-CoV-2 interaction with ACE2 receptors

A new study by Italian researchers and published online on the preprint server bioRxiv* in June 2020 reports the ability of several existing steroidal drugs to reduce the binding of the SARS-CoV-2 to the ACE2 receptor. This could help define newer strategies using viral entry blockers to reduce viral load.

14 Jun 2020

Chemotherapy and cancer join together to cause neuropathy

Contrary to common medical guidance, chemotherapy does not appear to be the only culprit in neuropathy, a neurological side effect of cancer treatment, a new study says. Cancer itself contributes heavily, too, and the stresses on neurons appear far worse than the sum of the two causes.

8 Jun 2020

SARS-CoV-2 infection causes specific kidney proximal tubular injury

SARS-CoV-2-associated acute kidney injury (AKI) is one of the more frequently encountered organ involvements in COVID-19 - in as many as 80% of critically ill patients, according to a recent study.

8 Jun 2020

Researchers use optical mapping system to observe the effect of hydroxychloroquine

The malaria drug hydroxychloroquine, which has been promoted as a potential treatment for Covid-19, is known to have potentially serious effects on heart rhythms.

1 Jun 2020

Study solves the longstanding mystery of anesthesia

Surgery would be inconceivable without general anesthesia, so it may come as a surprise that despite its 175-year history of medical use, doctors and scientists have been unable to explain how anesthetics temporarily render patients unconscious.

30 May 2020

Biophysicists reveal molecular mechanism behind light-driven sodium pumping

An international research team has for the first time obtained the structure of the light-sensitive sodium-pumping KR2 protein in its active state.

28 May 2020

Using electric current to directly control gene expression

A team of researchers led by ETH professor Martin Fussenegger has succeeded in using an electric current to directly control gene expression for the first time.

28 May 2020

Study pinpoints electrophysiological mechanism behind upper motor neuron disease

Scientists from Northwestern Medicine and the University of Belgrade have pinpointed the electrophysiological mechanism behind upper motor neuron disease, unlocking the door to potential treatments for amyotrophic lateral sclerosis and other neurodegenerative diseases, such as Hereditary Spastic Paraplegia and Primary Lateral Sclerosis.

21 May 2020

Researchers develop new method to study the effect of long-term oxygen deficiency

Researchers at Luleå University of Technology have developed a method to study how muscle cells in the blood vessels of the lung, permanently contract because of long-term oxygen deficiency.

15 May 2020

Using supercomputers to screen drugs for deadly heart arrhythmias

Death from sudden cardiac arrest makes headlines when it strikes athletes. But it also causes the most deaths by natural causes in the U.S. estimated at 325,000 per year.

14 May 2020