All articles tagged with #health science
Vibration plates have returned as a viral fitness trend, with users claiming benefits for muscle tone, balance, and even digestion. However, medical experts caution that while the devices may offer minor benefits for balance and circulation, they are not a substitute for traditional exercise and lack robust scientific backing for claims like weight loss or bone density improvement.
Researchers at Northeastern University screened 6,442 drugs and found that oxymetazoline, the active ingredient in Afrin, could improve intercellular communication, a hallmark of aging, suggesting a potential pathway for anti-aging therapies. Human trials don’t exist yet and scientists caution this is early-stage research, not a cure for aging. The piece also notes the drug’s habit-forming nature and mentions aspirin as another drug touching several aging hallmarks, underscoring that further work in cells, animals, and eventually people is needed.
A nationwide analysis of 6.14 million births found that prenatal exposure to sterol biosynthesis–inhibiting medications (SBIMs) is linked to a higher autism risk: 1.47× with at least one SBIM, and a 1.33× increase for each additional SBIM, reaching 2.33× when four or more are used. SBIM exposure rose from 4.3% of pregnancies in 2014 to 16.8% in 2023. The authors emphasize caution in prescribing during pregnancy and the need for safer alternatives, while noting these drugs remain essential for many adults.
Researchers in North Carolina have developed a promising needle-free vaccine delivery method using dental floss coated with vaccine molecules, which successfully protected mice from influenza and could revolutionize immunization practices by eliminating the need for injections.
Kitum cave in Kenya, carved by elephants for salt, hosts some of the deadliest pathogens known to man, including the Marburg virus. The cave has been an incubator for zoonotic diseases, with bats carrying the deadly virus. Marburg virus, which can jump into humans from fruit bats, has been described as an epidemic-prone threat by the World Health Organization. There are no approved vaccines or treatments for the virus, and it can cause symptoms similar to Ebola and malaria, leading to bleeding from multiple orifices.
A new study using brain scans and machine learning has identified two key brain regions, the anterior insula and ventral striatum, as crucial to psychosis in people with 22q11.2 deletion syndrome and those with psychosis of unknown causes. The findings support the theory that malfunctioning brain networks responsible for directing attention may lead to hallucinations and delusions. The study aims to pave the way for earlier diagnoses and better treatments for psychosis, potentially targeting these brain areas with existing treatments and studying the effects of antipsychotic medications.
Bill Gates had previously warned about the risk of pandemics and called for the development of a universal flu vaccine. The CDC has been "activated" after issuing a bird flu alert following a Texas man's infection from close contact with an infected cow. Scientists are concerned about the potential of a pandemic worse than COVID if the bird flu mutates. The CDC is prepared for what may be ahead, while investors are eyeing mRNA vaccine-makers' stocks in light of escalating fears around the bird flu virus.
Recent cases of bird flu in cats, cows, and humans have raised concerns about another potential pandemic, prompting renewed scrutiny of gain-of-function research. This controversial research aims to enhance pathogens' disease-causing abilities to understand their pandemic potential and aid in prevention efforts. Elon Musk has criticized gain-of-function research and tied Dr. Anthony Fauci into the controversy. The risk of a mutation increasing bird flu's transmissibility has scientists on high alert, while U.S. Senator Joni Ernest has sought more information on dangerous bird flu experiments. Despite the CDC stating that the public risk remains low for now, monitoring for a worsening bird flu situation is crucial.
Americans experienced "eclipse sickness" with symptoms like headaches, fatigue, and changes in menstrual cycles during Monday's solar eclipse, although NASA denies any physical link between the eclipse and human health. Pets also exhibited unusual behaviors, possibly due to disruptions in their circadian rhythm caused by the eclipse. Additionally, a study found a significant increase in road deaths around the 2017 eclipse, comparable to major holidays, due to increased traffic as people traveled to view the event.
Scientists in Brazil have used a radical vaccine strategy involving phage display to identify potential vaccine targets for schistosomiasis, a neglected tropical disease affecting millions worldwide. By analyzing proteins of the Schistosoma parasite, the researchers have identified key proteins driving the immune response to the infection, opening up promising prospects for vaccine development. While early results in mice are encouraging, the track record of schistosomiasis vaccines is challenging, with most candidates failing to elicit a strong immune response or protect against the disease. Nonetheless, this study provides a wealth of new candidates for further exploration in the quest for an effective vaccine.
A research team from Ben-Gurion University of the Negev in Beersheba has developed a nano-sized polymer that can selectively deliver chemotherapeutic drugs to blood vessels feeding tumors and metastases, effectively treating advanced colorectal cancer that has spread in mice. The polymer, licensed to Vaxil Biotherapeutics, has shown promising preclinical results and is set to undergo human clinical trials soon, offering hope for treating advanced cancer that has spread to other parts of the body.
Scientists at Weill Cornell Medicine have developed a human neuron model that simulates the spread of tau protein aggregates in the brain, shedding light on potential drug targets to block this process. Using CRISPR/Cas9 technology, the researchers created a neuron model with diseased forms of tau, allowing them to observe tau spread within weeks. Through CRISPRi screening, they identified 500 genes that impact tau abundance, including the UFMylation cascade, which, when altered, could block tau propagation. This finding was validated in both human neurons and mouse models, offering new directions for the development of treatments for Alzheimer’s disease and related conditions.
Researchers at UC Santa Barbara, in collaboration with international teams, have made significant progress in understanding the genetic form of early-onset Alzheimer’s disease affecting a large family in Colombia. They discovered a unique mutation responsible for the disease and found clues to how one family member unusually avoided its typical effects. Through genetic analysis and innovative technology, they identified differences in genetic processes between autosomal dominant and sporadic Alzheimer’s cases, suggesting that treatments for one type may not be effective for the other. They also uncovered clues as to how a family member with the same mutation managed to live into her 70s without developing dementia, shedding light on potential protective mechanisms.
Experts warn that the H5N1 bird flu, which has infected a dairy worker in Texas, could potentially cause a pandemic 100 times worse than COVID-19 if it mutates and maintains its high fatality rate. The virus has spread rapidly among wild birds, commercial poultry, and cattle herds across the US, raising concerns about its potential to infect humans. While the current risk to the public is considered low, the US is already testing vaccine components to prepare for a potential outbreak, and the Biden administration is closely monitoring the situation.
A study from University College London suggests that humans pass on more viruses to animals than they catch from them, highlighting the potential for human-to-animal virus transmission to spark health crises. The research analyzed tens of thousands of viral genomes and found that almost two-thirds of the samples were transmitted to animals via humans. This human-to-animal virus transmission could pose a conservation threat to species and impact food security. The study emphasizes the need to monitor and understand viral evolution to better prepare for future outbreaks and epidemics. The origins of the Covid-19 virus remain a subject of debate, with theories ranging from natural origins at a Wuhan market to a potential lab leak.