MicroRNA News and Research

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In genetics, microRNAs (miRNA) are single-stranded RNA molecules of 21-23 nucleotides in length, which regulate gene expression. miRNAs are encoded by genes from whose DNA they are transcribed but miRNAs are not translated into protein (i.e. they are non-coding RNAs); instead each primary transcript (a pri-miRNA) is processed into a short stem-loop structure called a pre-miRNA and finally into a functional miRNA. Mature miRNA molecules are partially complementary to one or more messenger RNA (mRNA) molecules, and their main function is to down-regulate gene expression.

Researchers use aerosolized molecules to shut down proteins generated by coronavirus

Researchers at Georgetown University Medical Center have successfully used molecules comprised of small strands of RNA to shut down the production of destructive proteins generated by the COVID-19 virus.

16 Nov 2020

Researchers discover unique anti-cancer function for previously well-characterized protein

The development and progression of cancer is a complicated process that occurs when cells in the body grow out of control. Many different mechanisms and pathways that directly affect cell proliferation have been uncovered.

10 Nov 2020

Spit testing may aid non-invasive concussion diagnosis

Doctors may soon be able to more accurately diagnose concussions by measuring the number of certain molecules in a person's saliva, according to Penn State College of Medicine researchers.

9 Nov 2020

miR-29 is an age-dependent regulator of developmental plasticity in the visual cortex

Postnatal development of the brain after birth is characterized by temporary, function-specific windows of high plasticity (critical or sensitive periods).

9 Oct 2020

Amniotic fluid stem cells may lead to better treatment for ischemic stroke

A study released today in STEM CELLS Translational Medicine points the way to a possible new avenue of treatment for ischemic stroke.

7 Oct 2020

Researchers develop a stable nano-carrier for medications

Medications often have unwanted side-effects. One reason is that they reach not only the unhealthy cells for which they are intended, but also reach and have an impact on healthy cells.

25 Sep 2020

Biomarker candidates could aid in earlier diagnosis of mesothelioma

Mesothelioma is a deadly cancer mainly caused by exposure to asbestos fibers. Unfortunately, mesothelioma is generally diagnosed at an already advanced stage and none of the therapeutic strategies tried so far is able to eradicate the disease.

24 Sep 2020

Diabetes leads to drastic reduction in the kidney's potential to clean itself

The kidneys often become bulky and dysfunctional in diabetes, and now scientists have found that one path to this damage dramatically reduces the kidney's ability to clean up after itself.

22 Sep 2020

Research provides insight into how muscles and fat tissue communicate to improve fitness

Why does exercise training make you more fit? It's well established that exercising enhances insulin sensitivity and improves our metabolism that, in turn, increases exercise performance. But the biological mechanisms underlying this adaptation are not fully understood.

14 Sep 2020

Researchers identify microRNA molecules that could repress the replication of human coronaviruses

HSE University researchers have found microRNA molecules that are potentially capable of repressing the replication of human coronaviruses, including SARS-CoV-2.

14 Sep 2020

Antiviral effects of honeysuckle decoction affected in SIDT1poly population

Previously, Chen-Yu Zhang's group have identified SID1 transmembrane family member 1 (SIDT1) as a critical membrane protein mediating dietary miRNAs absorption, which is abolished in SIDT1 deficient mice.

11 Sep 2020

Blood microRNA biomarker may have potential to detect head and neck cancer

Researchers at Flinders University are expanding work on a promising blood test model to help predict or diagnose head and neck cancer, a difficult cancer to pick up early and treat.

1 Sep 2020

RNA-targeting compound restarts a healing factor silenced by heart attack

A heart attack can leave parts of the heart permanently scarred and stiff, resulting in prolonged disability and potential progression toward heart failure. Scientists have studied various ways to repair or regenerate such damaged heart tissue, with limited success.

24 Aug 2020

Regeneration of vascular cells is regulated by RNA-binding protein

Through their basic research, physicians at the Heart Center of the University Hospital Bonn have discovered how the communication between individual cells can be influenced with the help of a specific protein.

19 Aug 2020

COVID-19 virus acts as a 'sponge' to deplete specific host microRNAs

Why is the COVID-19 virus deadly, while many other coronaviruses are fairly innocuous and just cause colds?

15 Aug 2020

Study: Anti-microRNA drug significantly reduces miR-92a levels in human peripheral blood

A single intravenous dose of MRG-110, an anti-microRNA drug, significantly reduced miR-92a levels in the blood of healthy humans.

12 Aug 2020

Study shows exercise induces changes in sweat biomolecule levels

A new study shows that in addition to blood, endurance exercise induces changes in sweat biomolecule levels. These findings lay the groundwork for the development of future noninvasive exercise monitoring systems that utilize sweat as a biomarker source.

12 Aug 2020

New approach improves SCA1 symptoms in animal models

Research has shown that a mutation in the ATAXIN-1 gene leads to accumulation of Ataxin-1 (ATXN1) protein in brain cells and is the root cause of a rare genetic neurodegenerative disease known as spinocerebellar ataxia type 1 (SCA1).

7 Aug 2020

Study: Drinking honeysuckle decoction accelerates the negative conversion of COVID-19 patients

In a new study in Cell Discovery, Chen-Yu Zhang's group at Nanjing University and two other groups from Wuhan Institute of Virology and the Second Hospital of Nanjing present a novel finding that absorbed miRNA MIR2911 in honeysuckle decoction (HD) can directly target SARS-CoV-2 genes and inhibit viral replication. Drinking of HD accelerate the negative conversion of COVID-19 patients.