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Archive for the ‘genetics’ category: Page 38

Apr 1, 2024

Team develops Fluid Biomarker for Early Detection of Amyotrophic Lateral Sclerosis, ALS and Frontotemporal Dementia

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

Two progressively degenerative diseases, amyotrophic lateral sclerosis (ALS, commonly known as Lou Gehrig’s disease) and frontotemporal dementia (FTD, recently in the news with the diagnoses of actor Bruce Willis and talk show host Wendy Williams), are linked by more than the fact that they both damage nerve cells critical to normal functioning—the former affecting nerves in the brain and spinal cord leading to loss of movement, the latter eroding the brain regions controlling personality, behavior and language.

Research studies have repeatedly shown that in patients with ALS or FTD, the function of TAR DNA-binding protein 43, more commonly called TDP-43, becomes corrupted. When this happens, pieces of the genetic material called ribonucleic acid (RNA) can no longer be properly spliced together to form the coded instructions needed to direct the manufacture of other proteins required for healthy nerve growth and function.

The RNA strands become riddled with erroneous code sequences called “cryptic exons” that instead affect proteins believed to be associated with increased risk for ALS and FTD development.

Apr 1, 2024

Unlocking the Secrets of Life With RNA’s Ancient Code

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

Salk scientists unveil RNA capabilities that enable Darwinian evolution at a molecular scale, and bring researchers closer to producing autonomous RNA life in the laboratory.

Charles Darwin described evolution as “descent with modification.” Genetic information in the form of DNA sequences is copied and passed down from one generation to the next. But this process must also be somewhat flexible, allowing slight variations of genes to arise over time and introduce new traits into the population.

Continue reading “Unlocking the Secrets of Life With RNA’s Ancient Code” »

Apr 1, 2024

More Complex Than Human Genome: Unlocking the Sweet Mysteries of Sugarcane DNA

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

Scientists created a highly accurate reference genome for one of the most important modern crops and found a rare example of how genes confer disease resistance in plants. Exploring sugarcane’s genetic code could help researchers develop more resilient and productive crops, with implications for both sugar production and biofuels.

Mar 31, 2024

Probiotic Therapy Shows Promise in Treating Autoimmune Diseases

Posted by in categories: biotech/medical, genetics

Autoimmune diseases pose significant challenges in healthcare, affecting millions worldwide. Recent research has suggested a potential link between gut microbiota and autoimmune conditions, paving the way for innovative therapeutic approaches. A study published in BMC Medicine aimed to systematically review the efficacy of probiotic therapy in managing various autoimmune diseases. The study was conducted by Zeng L. and colleagues.

Autoimmune diseases, including fibromyalgia, psoriasis, juvenile idiopathic arthritis (JIA), lupus nephritis, systemic lupus erythematosus, ulcerative colitis, and Crohn’s disease, result from dysregulation of the immune system. Genetic, environmental, and microbial factors, particularly gut microbiota, are implicated in their pathogenesis. Probiotics, defined as beneficial microorganisms that colonize the gut and modulate host immunity and metabolism, offer a promising avenue for treatment.

The study conducted a systematic review and meta-analysis of randomized controlled trials (RCTs) evaluating the efficacy of probiotic therapy in autoimmune diseases. Researchers searched multiple databases for eligible trials up to June 2022 and assessed outcomes such as Disease Activity Score at 28 joints (DAS28), Psoriasis Area and Severity Index (PASI), and Systemic Lupus Erythematosus Disease Activity Measure (SLEDAI).

Mar 31, 2024

Scientists Find a Potential Treatment for a Bone Marrow Disorder

Posted by in categories: biotech/medical, genetics

Fanconi anemia is rare genetic disorder that can be caused by changes in the sequence of one of at least 22 different genes. The disease can lead to a variety of symptoms including bone marrow failure, skeletal abnormalities, and increases the risk of cancer in patients. Scientists have long thought that the disease is due to problems with DNA that cause cell death, and disruptions in blood stem cells (also known as hematopoietic stem cells (HSCs), which are crucial for constantly replenishing the body’s supply of blood cells.

When protein-coding genes are expressed, the proteins they encode for start out as strings of amino acids, which have to be properly folded into a three-dimensional shape, or else serious problems can arise. Scientists have now determined that a buildup of miscoded proteins is actually a root cause of Fanconi anemia, and that a bile acid may be useful as a new treatment for the disorder. The research has been reported in Nature Communications.

Mar 29, 2024

What’s the Latest in CRISPR Gene-Editing Technology?

Posted by in categories: biotech/medical, genetics

Featuring research from the Doudna laboratory, the University of Harvard and the Center for Advanced Bioenergy and Bioproducts Innovation, this round-up piece discusses the latest research advancements in CRISPR technology.

Mar 29, 2024

Memories of mitosis: Molecular mechanism that detects defects during cell division could aid cancer treatment

Posted by in categories: biotech/medical, genetics

Every day, our cells are hard at work multiplying. Cell division is a precise process, but sometimes this process is impaired and diseases like cancer occur. Mitosis is one of the most important phases in the cell cycle. During this phase, a cell’s DNA is split into two equal sets of chromosomes and it divides into two genetically identical daughter cells.

Mar 29, 2024

Model suggests how ancient RNA may have gained self-cutting ability essential for life

Posted by in categories: biotech/medical, chemistry, genetics

Scientists have long pondered the beginnings of life on Earth. One theory is that RNA, which is ubiquitous across all domains of life, played a central role in early life. Similar to DNA, RNA possesses the ability to store genetic information. However, to initiate life’s processes, early RNA must have also possessed the capability to self-replicate and catalyze biochemical reactions independently, without the assistance of specialized enzymes.

Mar 29, 2024

Can Transhumanism Rescue The West From The Threat Of AI?

Posted by in categories: biotech/medical, genetics, geopolitics, robotics/AI, transhumanism

Here’s a new Forbes review by world leading futurist Tracey Follows on the book: Transhuman Citizen:


What does Transhumanism, Ayn Rand and the U.S. Presidential election have in common? They are the connecting themes in a new book by Ben Murnane entitled, “Transhuman Citizen”

The book tells the story of Zoltan Istvan, a one-time U.S. Presidential candidate, who drove a coffin-shaped bus around the U.S. attempting to persuade the public that death is not inevitable and that transhumanism is a political as much as a scientific solution to the troubles of the 21st Century.

Continue reading “Can Transhumanism Rescue The West From The Threat Of AI?” »

Mar 28, 2024

Clinical trial: Some sarcoma patients improve with T cell immunotherapy

Posted by in categories: biotech/medical, genetics

A clinical trial led by researchers at Washington University School of Medicine in St. Louis has shown that a T cell immunotherapy—in which the patients’ own T cells are genetically modified to attack and kill cancer cells—is effective in treating some patients with rare cancers of the body’s soft tissues.

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