Daniel J Alonso

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Researchers studied a new way to assess risk in patients with a heart valve problem called tricuspid regurgitation (TR) by using a system called the 4A classification, which looks at symptoms like weakness, swelling, abdominal pain, and loss of appetite. They found that out of 640 patients, 19% had serious outcomes such as hospitalization for heart failure or cardiovascular deaths, with those scoring higher on the 4A classification being at significantly greater risk. This matters because the 4A classification helps doctors identify which TR patients are most likely to face severe health issues, allowing for better-targeted treatment and monitoring.

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Researchers studied how to break down lignin from four types of biomass, including eucalyptus and sugarcane, into valuable oils using specific catalysts. They found that using an unsupported molybdenum-based catalyst in supercritical ethanol resulted in over 90% conversion to low-weight lignin oils, with 7-16% of the product being useful aromatic chemicals. This matters because it provides a way to transform renewable plant materials into high-quality products that can be used in various industries, such as fuels and coatings.

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This study looked at how the movement of people, climate change, and natural animal movements help mosquitoes that carry diseases, like dengue, spread in Spain over the last 20 years. The researchers found that humans not only create environments that help these mosquitoes thrive but also unknowingly move them to new areas, making their spread quicker and more continuous. Understanding these factors is important for developing effective strategies to control mosquito populations and protect public health as the environment continues to change.

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Researchers studied how the KRAS gene, which can drive cancer, behaves differently in various tissues such as the pancreas and intestine. They created a comprehensive database including 590 models to understand these differences and found that the amount of mutant KRAS can change how cancer develops in specific tissues. This is significant because it helps explain why certain cancers occur more often in certain areas of the body, improving our understanding of how to approach treatment and prevention.

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Researchers at a summit in 2025 focused on improving how data is shared among organizations studying Parkinson's disease and related disorders. They identified specific challenges, such as privacy concerns and high management costs, and put forward actionable recommendations for better collaboration and data access. Improving data sharing is crucial because it can lead to faster discoveries and breakthroughs in understanding and treating neurodegenerative diseases.

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This study focused on how changes to a specific part of cancer-fighting compounds called cemadotin affect their ability to bind to tubulin, a protein critical for cell division. The researchers found that one version of the cemadotin compound is better at interacting with tubulin, which could lead to more effective cancer treatments. Understanding these interactions is important because improving how these drugs work could enhance their effectiveness against cancer.

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This study investigated a copper-based compound called CuL to see how effectively it can treat osteosarcoma, a type of bone cancer that often occurs in young people. The results showed that CuL was significantly more effective at killing cancer cells than existing treatments, with a potency nearly 28 times stronger than the commonly used drug cisplatin. This is important because it highlights a potential new treatment option that could help overcome the challenges of current therapies, particularly in reducing tumor growth without causing serious side effects.

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In this study, researchers looked at how 367 children aged 6 to 11— including transgender, cisgender, and nonbinary kids—remember images of activities typically associated with boys or girls. They found that children remembered activities related to their own gender better, but all groups recalled non-stereotypical images more than stereotypical ones. This matters because it shows that, even in a diverse group, kids may be better at remembering activities that don’t fit traditional gender roles, which could impact how they understand gender.

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Researchers studied how different groups of children think about transgender kids revealing or hiding their identity. They found that all groups—cisgender kids, gender-diverse kids, and siblings of gender-diverse kids—viewed both disclosing and concealing one’s transgender identity positively. However, gender-diverse kids were particularly supportive of those who chose to conceal their identity, showing that children understand the challenges of disclosure and are generally supportive of transgender peers in their choices. This is important because it highlights that kids value trust and support among friends, which can impact the well-being of transgender children.

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This study looked at how male common crossbills change their feather colors using different carotenoid pigments from their diet. Researchers found that the bright red color of these birds mostly comes from a pigment called 3-hydroxy-echinenone, while other pigments contributed less and were not consistently linked to the color. The findings suggest that birds with richer red feathers may be better at efficiently using the carotenoids in their diets, which could help them signal their quality to potential mates.

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This study focused on improving labyrinth seals, which are used in machines to reduce leaks and therefore minimize greenhouse gas emissions. The researchers created a new testing system that can measure important factors like pressure and temperature while evaluating seal performances. Their results showed that this setup effectively tests different seal designs, paving the way for developing better seals that contribute to lower emissions.

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Researchers studied the genetic diversity of 3,449 eggplant varieties to understand how both human choices and environmental factors influenced their development. They found 334 significant genetic links to desirable traits like fruit color and yield, with certain traits evolving independently in regions like India and Southeast Asia. This research helps clarify how eggplant was domesticated, highlighting the balance between natural conditions and human intervention in crop evolution, which can inform future agricultural practices.

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In this study, researchers tested a new treatment (MDR-101) for people receiving kidney transplants from closely related donors to see if it could help them stop taking immune-suppressing drugs. Out of 20 patients who received the treatment, 19 were able to stop all immune-suppressive medications about a year after their transplant, and 15 of them maintained this for over two years without serious complications. This is significant because it shows a new way to help kidney transplant recipients live healthier lives without the need for long-term medication.

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Researchers studied how hantavirus spreads among rodents, specifically focusing on two types of rats in Argentina. They found that male rodents had higher infection rates, particularly during their mating season, indicating that breeding behaviors may help the virus spread. Understanding these dynamics is important because it can help predict and manage the risk of hantavirus infections in humans.

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Researchers tested a new partial prosthesis for a bone in the wrist called the scaphoid, which is difficult to treat when it fails. They studied six cadaver forearms and found that after the procedure, certain wrist movements decreased by up to about 19 degrees while others increased. This is important because it shows that the prosthesis may allow for better wrist movement compared to other treatments, making it a promising option for people with severe wrist problems.

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The WAKE UP study looks at how using vascular ultrasound imaging can help improve heart health awareness and encourage lifestyle changes in women aged 40 to 70 who have at least one major risk factor for cardiovascular disease. The study involves 720 women, with half receiving ultrasound imaging while the others do not, and will measure changes in their understanding of heart disease and their risk factors over a year. This research is important because heart disease is the leading cause of death for women, and by revealing the state of their heart health, it aims to inspire more women to make healthier lifestyle choices and reduce their risk of serious heart problems.

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Researchers in northwestern Argentina found a new type of orthohantavirus linked to a deadly respiratory illness called hantavirus pulmonary syndrome. They analyzed blood samples from the infected patient and discovered that the virus was significantly different from known hantaviruses, with less than 15% similarity to previously identified strains. This finding is important because it shows that this potentially dangerous virus can exist outside its usual areas, suggesting a broader risk for hantavirus infections in new regions, especially since the virus may be carried by local rodent populations.

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Researchers studied a newly identified strain of the Andes virus, called the ARG-Epuyén strain, which caused a person-to-person outbreak in Epuyén, Argentina, starting in November 2018. They found that this strain spreads easily among humans and can be transmitted effectively between hamsters, although it seems to be less harmful to them compared to another strain from the area. Understanding this virus is important for developing better prevention and treatment strategies to stop future outbreaks.

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Researchers studied a new wound treatment made from yerba mate extract, vitamins, and amino acids in rats that were undernourished. They found that this treatment helped these rats heal their wounds faster than those that didn't receive it, with significant improvements noted in wound closure and other healing indicators. This is important because it suggests that yerba mate-based treatments could be beneficial for people with poor nutrition who have complex wounds, offering a potential new option for improving recovery.

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Researchers in Texas looked at the healthcare costs for infants with congenital anomalies (birth defects) who needed surgery. They found that although these infants made up a smaller number of total surgeries, they accounted for a large majority of the surgical costs—about $4.8 billion in 2021, or 73% of all inpatient charges. This highlights the significant financial impact that treating these infants has on healthcare systems, especially as more organ systems are affected, leading to higher costs for surgical care.

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This study looked at how mosquitoes in the Amazon basin react to malaria parasites and the role of gut bacteria in this process. Researchers found that mosquitoes with low parasite levels were better at fighting off infection due to specific metabolic changes and less bacterial diversity, while those with high parasite levels had fewer defenses and more harmful bacteria. Understanding these differences is important because it could lead to new ways to block malaria transmission by targeting how mosquitoes respond to infections and their gut bacteria.

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This study focused on creating new versions of a natural substance called dolastatin 15, which is known for its ability to fight cancer. Researchers made various synthetic versions and tested them against different cancer cells, but they found that changes in the molecule's structure, like adding a specific chemical group, did not improve its ability to stop cancer cell growth. These findings help scientists understand what modifications might not work, guiding future research in developing more effective cancer treatments.

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This study looked at how energy moves between tiny quantum systems and their surroundings, which is important for advancing quantum technologies. The researchers found that using a special mathematical approach called a "reorganized master equation" gives much more accurate results for measuring heat flow, especially when things are not extremely cold. This improved method can help better understand energy exchanges, which is crucial for developing effective quantum devices.

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This study looked at how bean flour affects heart changes after a heart attack in rats. Researchers found that while bean flour didn't reduce heart damage after the attack compared to regular food, it did change the types of bacteria in the gut. This is important because it shows that while beans may not directly protect the heart after a heart attack, they influence gut health, which could have other benefits for overall health.

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This study looked at how well two cancer treatments work together for a type of lung cancer called non-small cell lung cancer (NSCLC). Researchers found that giving the anti-PD-1 treatment first, followed by racotumomab, significantly reduced the formation of lung tumors in mice, compared to using either treatment alone. This combination is important because it offers a potentially more effective way to fight advanced lung cancer.

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Researchers studied a specific type of genetic change called chromosome inversions in mosquitoes that spread malaria in Brazil. They found that their method reliably detected these inversions using a less expensive and less intensive sequencing technique, identifying 10 promising regions for further investigation. This is important because understanding these genetic changes in malaria-carrying mosquitoes can help improve strategies for controlling the disease and preventing its spread.

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Researchers studied the genetic diversity of eggplant by examining 368 different samples globally and sequencing their DNA. They discovered key genetic factors linked to important traits such as prickliness and resistance to a specific plant disease, which could help improve eggplant breeding. This information is crucial because it allows for better breeding strategies that can enhance eggplant crops and their resilience.

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This study examined how the interactions between the Anopheles darlingi mosquito, the Plasmodium vivax malaria parasite, and the microbes in the mosquito's gut affect the severity of malaria infections. Researchers found that mosquitoes that had lower levels of the parasite in their system had better immune responses and less diverse gut bacteria, which helped limit parasite growth. This matters because understanding these interactions can lead to new ways to prevent the spread of malaria by targeting these mosquito and parasite dynamics.

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This study looked at how to make a specific type of chemical reaction (aldol reactions) happen more selectively when other competing reactions (Henry reactions) are also possible. Researchers found that using certain conditions resulted in highly pure aldol products with good yields, and they identified a key acidity level (pKa around 7.0) that helps favor the desired outcome. This work is important because it could lead to better methods for creating complex molecules, which are useful in drug development and other fields.

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This study looked at how cells respond to stress caused by high sugar levels, specifically how their genetic material (chromatin) changes shape during this stress. Researchers found that within an hour of exposure, the normal structure of the chromatin fell apart and new, temporary structures formed, which mostly disappeared after 24 hours. This change helps the cell manage stress and can control how genes are activated later, highlighting an important mechanism for how cells adapt to challenging environments.

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The study looked at liver transplants in the U.S. before and after a policy change by the United Network for Organ Sharing in February 2020, aiming to improve access to transplants. After the change, the number of liver transplants dropped by 6%, with a 54% decrease in local donations, while imported donations surged by 133%. Costs also increased significantly, with overall hospital expenses rising by nearly 11%, and specific costs for imported livers jumping by 122%, highlighting that the new policy may worsen existing inequalities in healthcare access for marginalized communities.

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This research paper looks at new ways to make chemical reactions more efficient and produce less waste in organic chemistry. It specifically focuses on using free alcohols to attach them to other compounds called carbonyls, making the process simpler and greener. These advancements are important because they help reduce waste and improve the overall effectiveness of chemical synthesis.

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This study looked at how prickles, or sharp projections, on plants have developed and disappeared independently across different plant types over millions of years. Researchers found that changes in a specific gene related to a plant hormone led to at least 16 instances where prickles were lost in eggplants and their wild relatives. This research matters because it shows that many plants share a common genetic basis for making prickles, which helps us understand how similar traits arise in different species.

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Researchers studied a specific type of RNA called T-box riboswitches, which help bacteria manage amino acids by interacting with tRNA. They found that these riboswitches first recognize part of the tRNA, and then a specific sequence stabilizes the binding, making the connection stronger. Understanding how these riboswitches work is important because it sheds light on how bacteria control their genetic functions, which could lead to better treatments for bacterial infections.

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Researchers successfully detected a connection between cosmic shear (the bending of light from distant galaxies) and the X-ray background, achieving a very strong result. They found that in some dark matter regions, about half of the surrounding gas has been pushed out, with specific measurements showing that these regions have a mass of approximately 44 times that of our Sun. This discovery helps scientists better understand how gas behaves in space, which is important for piecing together the universe's evolution and structure.

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Researchers studied the effects of a pesticide called pyriproxyfen on mosquito populations in Manaus, Brazil, which carry diseases like Dengue and Zika. They found that while the use of pyriproxyfen significantly reduced mosquito numbers, it didn't change the genetic diversity of the populations in the city as much as expected. This means that focusing on small, targeted areas may not be enough for effective mosquito control, and larger-scale efforts might be necessary to improve public health outcomes.

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This study explored how to use a renewable chemical called gamma-valerolactone (GVL) to prepare white birch wood for converting it into ethanol. The researchers found that using GVL improved the breakdown of wood sugars significantly, yielding higher amounts of ethanol with a non-commercial enzyme compared to a well-known commercial option. This is important because it offers a more effective and potentially cheaper way to produce biofuels from abundant natural materials.

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Researchers studied a new snack made mostly from chickpea flour and a little pork, comparing it to a traditional meat snack made from mostly pork. They found that people felt just as satisfied after eating the chickpea-pork snack, but their blood sugar levels were higher than after eating the meat-only snack. This matters because it shows that combining plant and animal proteins in snacks could help people feel full while also providing different health benefits.

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Researchers studied the effect of a larvicide called pyriproxyfen on Aedes aegypti mosquitoes, which spread diseases like dengue and Zika, in Manacapuru, Brazil. After setting up 1,000 stations to distribute the larvicide, they found significant changes in the mosquito population's genetics, indicating that the treatment reduced their numbers but caused nearby populations to refill the area afterwards. This matters because it shows how effective mosquito control can help manage disease risks and highlights the importance of monitoring mosquito genetics for ongoing public health efforts.

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This study looked at different strains of hantaviruses that can cause Hantavirus Pulmonary Syndrome (HPS) in Central-East Argentina, where some strains can spread between people. Researchers found two main groups of these viruses: one group in the Southwest (Andes virus) and another group that includes the Buenos Aires and Lechiguanas viruses in Central-East Argentina. Understanding the variety and spread of these viruses is important because it helps identify how they can be transmitted and informs public health efforts to prevent outbreaks.

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Researchers studied a specific type of prostate cancer known as neuroendocrine prostate cancer (NEPC), which is aggressive and difficult to treat. They created a 7-gene test that can predict how dangerous the cancer might be, and found that it accurately identifies high-risk cases, even among patients not previously diagnosed with NEPC. This tool is important because it helps doctors better assess the cancer's potential to worsen and tailor treatment plans accordingly, potentially improving patient outcomes.

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This study looked at how temperature and water availability affect mosquito populations in urban areas. Researchers created a new method to calculate how many female mosquitoes one female can produce throughout her life, which helps determine where and when mosquitoes might thrive. They found that rising temperatures might help mosquitoes spread into new areas, leading to more outbreaks. These findings are important for planning how to manage and control mosquito populations effectively, especially in regions where they could become a problem.

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Researchers studied a specific type of aggressive prostate cancer called neuroendocrine prostate cancer (NEPC) and developed a tool based on seven genes that can predict how the disease will progress. They found that this gene signature can identify not only NEPC but also other prostate cancer cases that may worsen over time, indicating a higher risk of poor outcomes. This discovery is important because it can help doctors personalize treatment plans for patients, improving the chances of managing the disease effectively.

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This study looked at how the Coronavirus affects the body beyond just causing respiratory problems. Researchers found that the virus can enter and hide inside red blood cells, which may help it spread throughout the body. They discovered that certain substances, like heme, can influence how severe the infection is, suggesting new strategies for treating COVID-19 by targeting these interactions.

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This paper discusses a 17-year-old girl who had an intragastric balloon (IGB) placed to help with her obesity but then developed a serious complication called gastric outlet obstruction because she didn't receive proper follow-up care afterward. The case emphasizes that as more young people seek treatments abroad, it's important for pediatric surgeons in the U.S. to be prepared to deal with potential issues related to these procedures. This matter is crucial because it underlines the risks involved in procedures not approved for children.

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This study looked at how tiny organisms known as microbes move between different environments—like water, sediment, and air—in saline lakes and how these movements are affected by salt levels. It found that while each of the communities of microbes is different, they share some common organisms that can live in multiple environments. Notably, as salt levels rise, more specialized microbes take over, showing that understanding how these microbes spread can help us appreciate their role in ecosystems, especially in extreme habitats.

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This study looked at how effective different methods, like PET/CT scans and biopsies, are in assessing bone marrow involvement in patients with mantle cell lymphoma (MCL). Out of 148 patients, biopsies detected bone marrow issues in 110 cases, while PET/CT scans only found them in 33. The results showed that biopsies were much more accurate, but using both methods together helped identify patient groups with different survival outcomes, leading to the creation of a new prognostic model (MCL-PET-I) that helps doctors better predict patient risks and tailor treatment plans.

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Researchers studied breath tests used to diagnose small intestinal bacterial overgrowth in Argentina. They examined 210 test reports from eight different centers and found that most tests didn’t follow international guidelines: only 19% ran the tests long enough, and only 4% met all recommended criteria. This matters because improving the methods and quality of these tests can lead to more accurate diagnoses and better patient care.