Tag

Microrna

All articles tagged with #microrna

science5 days ago•81 min saved

Fungal long non-coding RNA hijacks rice microRNA to boost infection

A study reveals Magnaporthe oryzae secretes a fungal long non-coding RNA (lnc117761) that translocates into rice cells and binds the host miRNA miR5827, preventing it from repressing the PKR1 immune-regulator gene. This sponging lifts PKR1 repression, enabling fungal virulence; deleting lnc117761 or mutating its miR5827-binding site reduces infection, while rice plants overexpressing the lncRNA become more susceptible. The work identifies a cross-kingdom RNA interaction (RNA–RNA) as a virulence mechanism and shows the rice miR5827–PKR1 axis also influences disease resistance, with potential for RNA-based crop protection, including similar regulatory RNA sequences in other pathogens like Rhizoctonia solani and Fusarium graminearum.

via Nature|

#cross-kingdom-rna-interference #long-non-coding-rna #magnaporthe-oryzae

science1 month ago•33 min saved

Two-Dose Nasal Spray Reverses Brain Aging in Weeks, Texas A&M Finds

Texas A&M researchers report a two-dose nasal spray that uses microRNA-loaded extracellular vesicles to bypass the blood-brain barrier, reduce neuroinflammation, and restore cognitive function in aging animal models within weeks — with effects lasting months and observed in both sexes. Human trials are years away; the team has filed a patent and has backing from the National Institute on Aging, though safety details remain undisclosed.

via Yahoo|

#brain-aging #extracellular-vesicles #microrna

science7 months ago•4 min saved

Fitness Traits in Mice Passed to Offspring Without DNA Changes

Scientists demonstrated that exercise in male mice can pass on athletic traits to their offspring through epigenetic mechanisms involving microRNAs in sperm, without altering DNA. This effect was also observed in humans, suggesting lifestyle choices of fathers may influence their children's traits. The study highlights a new paradigm in inheritance beyond genetics.

via Good News Network|

#epigenetics #exercise #inheritance

health8 months ago•3 min saved

Breakthrough Gene Therapy Achieves 75% Success in Treating Huntington’s Disease

A small trial has shown that a one-time gene therapy can significantly slow the progression of Huntington’s disease by 75% over three years, offering new hope for treatment, though further research is needed to confirm these preliminary results.

via Nature|

#clinical-trial #gene-therapy #health

science8 months ago•4 min saved

Factors Behind the High Citation Count of a MicroRNA Review Paper

A brief review paper on microRNA published in 2018 has been cited over 2,000 times, largely due to its prominence in search results, but many citations may be from paper mill activities and retracted papers, raising concerns about research integrity in the microRNA field.

via Retraction Watch|

#citation #microrna #paper-mill

health8 months ago•4 min saved

Scientists Discover MicroRNA That Protects Kidneys in Breakthrough Study

Canadian researchers have discovered a microRNA, miR-423-5p, that can protect kidney blood vessels after injury and serve as a blood-based biomarker for early detection and treatment of chronic kidney disease, with potential applications in transplantation and other vascular-related conditions.

via SciTechDaily|

#biomarker #chronic-kidney-disease #health

health1 year ago•3 min saved

Key Biomarker Identified for Chronic Renal Failure

Canadian researchers have identified microRNA miR-423-5p as a promising biomarker for assessing microvascular health in the kidneys, which could lead to earlier diagnosis and targeted treatments for chronic renal failure and other diseases involving small blood vessel loss.

via Medical Xpress|

#biomarker #chronic-renal-failure #health

science1 year ago•1 min saved

Nobel-Winning Couple: Equal Partners in Science, Unequal in Recognition

Victor Ambros and Rosalind Lee, a married scientific duo, discovered microRNA in C. elegans, initially thought to be unique to the species. However, further research by their collaborator Gary Ruvkun revealed these molecules in various animals, indicating their ancient and widespread nature. Despite their equal contributions, the Nobel Prize committee did not recognize them equally, highlighting gender disparities in scientific recognition.

via STAT|

#celegans #genetics #microrna

science2 years ago•2 min saved

Unraveling the Mystery: How Genes Emerge from Nothing

Scientists from the University of Helsinki have discovered a mechanism for the formation of new genes from nothing. By studying regulatory genes known as microRNA, the researchers used computer modeling to show that whole palindromes can arise from a single mutation event. This mechanism can explain approximately one-quarter of new genes and is believed to be universal. The findings provide insight into the origins of DNA and shed light on the evolution of RNA genes.

via Yahoo! Voices|

#dna #evolution #genes

science2 years ago•3 min saved

"Breakthrough Discovery: DNA's Ability to Generate New Genes Unveiled"

Scientists from the University of Helsinki have discovered a mechanism by which DNA can rapidly create new genes for quick adaptation to changing environments. They found that certain single mutations can produce palindromes in DNA, which can evolve into microRNA (miRNA) genes. These miRNA genes play a significant role in regulating other genes and have been found to emerge in some animal groups, including primates. The process, called template-switching mutations (TSMs), allows for the creation of new miRNA genes from previously noncoding DNA sequences. This mechanism is much faster than the evolution of new functional proteins. The findings suggest a universal miRNA gene creation mechanism and have implications for understanding the impact of miRNA genes on human health.

via ScienceAlert|

#dna #evolution #genes

science2 years ago•3 min saved

"Discovery of Genes Emerging Spontaneously Challenges Traditional Understanding"

Researchers at the University of Helsinki have discovered a mechanism that can generate complete DNA palindromes, leading to the creation of new microRNA genes from previously noncoding DNA sequences. By studying errors in DNA replication, the researchers found that certain errors can copy DNA backward, creating palindromic sequences. These palindromes can then fold into hairpin structures, which are crucial for the function of microRNA molecules. The researchers believe that this mechanism can explain the origin of at least a quarter of novel microRNA genes and may have broader implications for understanding the evolution of RNA genes and the basic principles of biological life.

via Phys.org|

#dna-replication #evolution #genes

health2 years ago•2 min saved

"RNA Breakthrough Unlocks Cancer-Fighting Potential of Immune System"

Researchers at the University of Massachusetts Amherst have discovered that a small strand of microRNA, called let-7, plays a crucial role in the ability of T-cells to recognize and remember tumor cells. This cellular memory is the basis for how vaccines work, and boosting it could improve cancer therapies. The study suggests a new strategy for the next generation of cancer-fighting immunotherapies. The researchers found that let-7, which is highly expressed in memory cells, reduces the chances of T-cells being tricked by cancerous tumor cells and increases the likelihood of them turning into memory cells. Understanding how let-7 is regulated during treatment could enhance the capabilities of our immune systems and lead to promising advancements in immunotherapy.

via Good News Network|

#cancer #health #immunotherapy

health2 years ago•4 min saved

"Breakthrough: Targeted microRNA therapy effectively inhibits cancer tumor growth"

Researchers at Purdue University have developed a new cancer therapy that targets tumors by using a modified version of microRNA-34a, a molecule that naturally slows or stops cell division. In mouse models, tumors treated with the therapy did not increase in size over a 21-day study, while untreated tumors tripled in size. The therapy also suppressed the activity of genes known to drive cancer and resistance to other therapies. The modified microRNA-34a is stable and can be delivered to cancer cells using a folate compound, reducing potential toxicity and side effects. The researchers are preparing for clinical trials.

via Medical Xpress|

#cancer-therapy #drug-resistance #health

health2 years ago•3 min saved

Revolutionary Hair Loss Solution Discovered: Harnessing the Power of MicroRNA and Hairy Moles

Scientists have discovered a potential breakthrough treatment for hair loss using microRNA. A recent study found that increasing the production of a specific type of microRNA, called miR-205, could soften hair follicles and promote hair growth in both young and old mice. While more research is needed to determine its effectiveness in humans, this discovery could lead to the development of a new treatment for baldness. Current FDA-approved treatments for hair loss include minoxidil, finasteride, laser light therapy, and platelet-rich plasma (PRP).

via Healthline|

#baldness #hair-loss #hair-regrowth

health2 years ago•3 min saved

MicroRNA Treatment Shows Promise for Hair Loss

Scientists may have discovered a breakthrough treatment that could help reverse hair loss by using microRNA. Hair follicles become stiffer as we grow older, contributing to hair loss. However, a new study found that a type of microRNA helps to soften the follicles, aiding hair regrowth. This could lead to the development of a new treatment for baldness. More work is needed, however, since only mice studies have been done so far.

via Healthline|

#baldness #hair-loss #hair-regrowth