Dr. Vargas studies the implications of infectious diseases on public health, with a particular focus on conditions like yellow fever, especially in pregnant women and rural communities. She explores effective treatments and prevention strategies, such as vaccination, to improve health outcomes. Additionally, she investigates how underlying conditions, including diabetes, influence diseases like breast cancer. Through her diverse research, she aims to bridge gaps in healthcare and enhance support for patients facing complex health challenges.
Key findings
In a study on yellow fever in pregnancy, it was found that vaccination during outbreaks is generally safe and the benefits outweigh the risks, helping to protect both mothers and babies.
During a yellow fever outbreak in Colombia, 39% of cases resulted in death, emphasizing the need for targeted vaccinations in vulnerable populations.
After treatment for vestibular schwannoma, 44% of patients maintained usable hearing after 10 years, highlighting the long-term risks of hearing loss for patients even with good initial hearing.
In a study on pneumonia in Colombia, the PCV-20 vaccine was found to offer 71.3% protection for children under 5, indicating its potential to reduce serious infections.
An innovative cancer treatment method discovered that patients with genetic profiling at diagnosis lived 4.2 months longer on average than those tested later, demonstrating the importance of timely genetic testing.
Frequently asked questions
Does Dr. Vargas study yellow fever?
Yes, Dr. Vargas conducts extensive research on yellow fever, particularly its impact on pregnant women and outbreak management.
What treatments has Dr. Vargas researched?
She has studied treatments for conditions such as breast cancer, highlighting how diabetes affects cancer progression and outcomes.
Is Dr. Vargas's work relevant to pregnant women?
Absolutely, her research on yellow fever during pregnancy directly informs healthcare providers and expectant mothers about safe vaccination practices.
What can patients expect from Dr. Vargas's research on mood disorders?
Patients can benefit from improved understanding and diagnosis of mood disorders, which may lead to better treatment strategies.
Who benefits from Dr. Vargas's studies on pneumonia?
Patients in Colombia, especially vulnerable groups such as children and the elderly, benefit from her research on pneumococcal vaccines and respiratory infections.
Publications in plain English
Rate of Hearing Preservation After Stereotactic Radiosurgery for Treatment of Vestibular Schwannoma: Analysis of Patients With 100% Word Recognition Scores.
2026
Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology
Vargas H, Khandalavala KR, Marinelli JP, Lohse CM, Link MJ +1 more
Plain English This study looked at how well people with good hearing (100% word understanding) maintained their hearing after being treated for vestibular schwannoma (a type of brain tumor) with a technique called stereotactic radiosurgery (SRS). Out of 125 patients studied, about 44% still had usable hearing after 10 years. This matters because even patients who start with excellent hearing face a high chance of hearing loss after treatment, indicating the need for better monitoring and care strategies.
Who this helps: This benefits patients with vestibular schwannoma and their healthcare providers.
Yellow fever re-emergence in Tolima, Colombia 2024-25: an eco-epidemiological study.
2026
medRxiv : the preprint server for health sciences
Judson SD, Stephan N, Machuca S, Henao-Martínez AF, Parra-Henao G +4 more
Plain English This study looked at a yellow fever outbreak in Tolima, Colombia, from 2024 to 2025, revealing 116 human and 53 non-human primate cases. Notably, 45 people (39%) died, with older individuals facing higher risks. The research highlighted that factors like high rainfall and poverty increased the likelihood of yellow fever cases, suggesting that targeted vaccination efforts are crucial for vulnerable rural communities.
Who this helps: This benefits patients, especially those in rural areas at risk for yellow fever.
Yellow Fever in Pregnancy: A Comprehensive Review of the Clinical Implications and Vaccination in the Context of the 2024-2026 Americas Outbreak.
2026
Tropical medicine and infectious disease
Rodríguez-Morales AJ, Acevedo-Jimenez K, Guevara ME, Chang-Cojulun A, Brea-Del Castillo J +43 more
Plain English This paper reviews the risks and management of yellow fever in pregnant women, especially during the 2024-2026 outbreaks in the Americas. It found that while yellow fever can cause serious problems for mothers and babies, pregnant women don't seem to be more susceptible to severe illness than non-pregnant women. Vaccinating pregnant women in areas where yellow fever is common is generally safe and effective, and the benefits outweigh the risks.
Who this helps: This helps pregnant women living in or traveling to areas where yellow fever is a risk, as well as their healthcare providers.
NeuroDISK: An AI Approach to Automate Continuous Inquiry-Driven Discoveries in Neuroimaging Genetics.
2025
bioRxiv : the preprint server for biology
Garijo D, Yang Q, Vargas H, Gadewar SP, Low K +6 more
Plain English The study developed a tool called NeuroDISK, which uses artificial intelligence to automatically analyze brain imaging and genetic data. It was tested with research from the ENIGMA project on how genetics affects different parts of the brain and found that as new data was added, the results changed in a meaningful way. This matters because it helps researchers continuously refine their findings rather than relying on static data, leading to better understanding of brain genetics.
Who this helps: This benefits researchers and clinicians working in neuroscience and genetics.
A scintigraphic look at the dead donor rule in donation after the circulatory determination of death with the use of normothermic regional perfusion: A single-center interventional trial.
2025
American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons
Royo-Villanova M, Sánchez JM, Moreno-Monsalve T, Contreras J, Ortín A +6 more
Plain English This study looked at a method called normothermic regional perfusion (NRP) used in organ donation after someone has died from heart failure. Researchers checked if this method causes blood to flow back into the brain, which would raise ethical concerns. They found that in 20 organ donors, there was no blood flow to the brain at all, indicating that the method complies with ethical guidelines about death. This is important because it supports the use of NRP in organ donation, potentially increasing the availability of organs for those in need.
Who this helps: This helps patients waiting for organ transplants and the medical teams responsible for organ recovery.
Comparative Gut Proteome offrom Leishmaniasis Endemic and Non-Endemic Areas of Amazon Reveals Differences in Microbiota and Proteins Related to Immunity and Gut Function.
2025
Microorganisms
Tempone AJ, Spelta GI, Ramos de Almeida V, Giglioti DM, Costa EM +10 more
Plain English This study looked at the differences in gut proteins and bacteria between sand flies from two nearby areas in Brazil, one with high cases of American Tegumentary Leishmaniasis (ATL) and the other with low cases. They found that sand flies in the area with fewer cases had more proteins that help with immune response and gut function, and some unique bacteria in this group might help fight parasites. Understanding these differences is important because it can explain why one area has more ATL cases than the other.
Who this helps: This helps researchers and public health officials working to control and prevent leishmaniasis.
Yellow fever in South America - A plea for action and call for prevention also in travelers from SLAMVI, ESGITM, EVASG, ALEIMC, GEPI-SEIMC, SEMEVI, and CMTZMV-ACIN.
2025
Travel medicine and infectious disease
Rodriguez-Morales AJ, Alhazmi AH, Katime A, Hameed AA, Morales A +125 more
Vulture dominance in a scavenger assemblage in the Neotropical dry forest.
2025
Scientific reports
Monar-Barragán P, Vargas H, Pineida R, Salazar A, Virgos E +4 more
Plain English This study looked at the scavenger community in the dry forests of western Ecuador by placing 64 animal carcasses of varying sizes to see which scavenger species fed on them. Researchers found that vultures, particularly the Black Vulture and King Vulture, dominated the scavenging activity, consuming larger carcasses faster than smaller ones. This matters because vultures play a crucial role in maintaining the health of the ecosystem; without them, the balance of nature could be disrupted, affecting both the environment and human health.
Who this helps: This helps both conservationists and local communities who rely on healthy ecosystems.
The potential impact of PCV-13, PCV-15 and PCV-20 vaccines in Colombia.
2024
Vaccine
Serrano-Mayorga CC, Ibáñez-Prada ED, Restrepo-Martínez JM, Garcia-Gallo E, Duque S +5 more
Plain English This study looked at which pneumococcal vaccines could provide the best protection for people in Colombia diagnosed with serious pneumonia infections from 2015 to 2019. Researchers reviewed data on 690 cases and found that the PCV-20 vaccine offered the most protection for children under 5 (71.3%) and adults aged 18 to 64 (61.8%), while for those over 65, the existing PPSV-23 vaccine provided slightly better coverage (58.1%). A significant number of cases (33.9%) were caused by bacteria that these vaccines do not protect against, indicating a need for future vaccines to cover these gaps.
Who this helps: This helps patients in Colombia, especially children and older adults, by potentially reducing serious pneumonia cases.
Cytoarchitecture of Breast Cancer Cells under Diabetic Conditions: Role of Regulatory Kinases-Rho Kinase and Focal Adhesion Kinase.
2024
Cancers
Dutta D, Ziemke M, Sindelar P, Vargas H, Lim JY +1 more
Plain English This study looked at how diabetes affects breast cancer cells and their ability to spread. Researchers found that high levels of glucose change the structure and flexibility of breast cancer cells, making them more aggressive. Specifically, they noticed that the elasticity of cancer cells decreased when exposed to high glucose, and this change was less pronounced in normal breast cells.
Who this helps: This helps patients with breast cancer, especially those who also have diabetes.
Research and Diagnostic Algorithmic Rules (RADAR) for mood disorders, recurrence of illness, suicidal behaviours, and the patient's lifetime trajectory.
2023
Acta neuropsychiatrica
Maes M, Moraes JB, Congio A, Vargas H, Nunes S
Plain English This study developed a new way to diagnose and understand mood disorders using a method called Research and Diagnostic Algorithmic Rules (RADAR). They found a specific type of mood disorder, named Major Dysmood Disorder (MDMD), which is linked to a higher risk of recurring illness and serious disabilities. The researchers created a system to track a patient's history and symptoms visually on a graph, making it easier for doctors to assess the severity of a patient's condition quickly.
Who this helps: This benefits both patients and doctors by providing clearer insights into mood disorders and guiding treatment decisions.
Epidemiological characterization of the pediatric population diagnosed for SARS-CoV-2 in the public health laboratory from Tolima, Colombia: A retrospective analysis 2020-2022.
2023
Travel medicine and infectious disease
Barbosa Vinasco HJ, Rojas Herrera D, Fernández Gómez LM, Osorio Delgado LA, Golijow CD +1 more
Senescent cardiac fibroblasts: A key role in cardiac fibrosis.
2023
Biochimica et biophysica acta. Molecular basis of disease
Osorio JM, Espinoza-Pérez C, Rimassa-Taré C, Machuca V, Bustos JO +3 more
Plain English This study focused on cardiac fibroblasts, which are important cells in the heart that help maintain its structure and respond to damage. The researchers found that as these cells age, they behave differently, contributing to heart fibrosis, or thickening of heart tissue. In young animals, these cells are beneficial right after heart damage, helping repair the tissue, but in older animals or in untreated conditions, their presence can worsen heart problems. Understanding how to control these aging cells with new drugs could lead to better treatments for heart diseases, particularly for older patients.
Who this helps: This helps patients with heart conditions, especially older adults.
Application of Comprehensive Genomic Profiling-Based Next-Generation Sequencing Assay to Improve Cancer Care in a Developing Country.
2023
Cancer control : journal of the Moffitt Cancer Center
Cifuentes C, Lombana M, Vargas H, Laguado P, Ruiz-Patiño A +36 more
Plain English This study looked at how a special genetic test, called comprehensive genomic profiling (CGP), can improve cancer treatment in a developing country. Researchers found that nearly half of the patients, 46.4%, had specific gene changes that could be treated with approved medications. Those who had their genes checked right after diagnosis lived longer—an average of 18.3 months—compared to 14.1 months for those who were tested later.
Who this helps: This benefits cancer patients by providing tailored treatment options.
Emergency department patient navigators successfully connect patients to care within a rapidly evolving healthcare system.
2023
Preventive medicine reports
Peretz PJ, Vargas H, D'urso M, Correa S, Nieto A +3 more
Plain English This study looked at how patient navigators in a New York City emergency department helped patients get follow-up care. Between February 2020 and December 2022, they supported over 30,000 patients, and 94% of those without a primary care doctor ended up with one, while 81% attended their follow-up appointment. This is important because it shows that patient navigators can effectively help patients overcome challenges in the healthcare system and ensure they receive the care they need.
Who this helps: Patients who struggle to access follow-up healthcare after emergency visits.
Not Your Typical Hyperammonemia: Non-hepatic Severe Hyperammonemia in an Adult.
2023
ACG case reports journal
Barnhill M, Yaman R, Renszel K, Alzubaidi S, Vargas H +1 more
Plain English This study examined a rare case of severe hyperammonemia in an adult, which typically occurs because of liver disease but was instead caused by an unusual condition called a splenogonadal shunt. The authors highlighted how this condition resulted in an ammonia buildup that can lead to serious side effects, like brain dysfunction. Recognizing these cases is important because it helps in providing the right treatment and understanding that hyperammonemia can be caused by factors other than liver disease.
Who this helps: This benefits patients who experience hyperammonemia without apparent liver issues.
Characterization of Cuban and Brazilian natural zeolites by photoacoustic spectroscopy and electron paramagnetic resonance.
2022
Anais da Academia Brasileira de Ciencias
Lara-Bernal A, Silva MGD, Mota L, Marín E, Cordeiro TC +5 more
Plain English This study examined natural zeolites from Cuba and Brazil using advanced imaging techniques to identify their chemical makeup. Researchers found iron ions in both samples and two types of manganese ions in the Cuban zeolite. The results showed specific numbers for how these elements behave, such as the relaxation times for the Brazilian and Cuban samples being about 5.40 milliseconds and 4.60 milliseconds, respectively. Understanding these materials can help improve their use in environmental and industrial applications.
Who this helps: This benefits scientists and engineers working with zeolites for various applications.
Deep learning exoplanets detection by combining real and synthetic data.
2022
PloS one
Cuéllar S, Granados P, Fabregas E, Curé M, Vargas H +2 more
Plain English This study focused on using deep learning to find new exoplanets, particularly those that might support life. Researchers created a computer model that combines real and artificially generated data to better detect light patterns from the Kepler Telescope, leading to improved identification of planetary transits. They found that using a mixture of synthetic data during training significantly boosted the model's accuracy, with the best model achieving a high true positive rate.
Who this helps: This benefits astronomers and scientists looking for new planets that could be habitable.
Terlipressin use and respiratory failure in patients with hepatorenal syndrome type 1 and severe acute-on-chronic liver failure.
2022
Alimentary pharmacology & therapeutics
Wong F, Pappas SC, Reddy KR, Vargas H, Curry MP +2 more
Plain English This study looked at how the drug terlipressin affects patients with hepatorenal syndrome type 1 and severe liver failure. Researchers found that terlipressin reduced the risk of respiratory failure in patients with less severe liver conditions, where it occurred in 9.4% of cases compared to 30% in more severe cases. However, it also showed similar survival rates at 90 days for less severe conditions and lower rates for severe cases, suggesting that terlipressin may carry risks for these patients.
Who this helps: This helps doctors make better treatment decisions for patients with liver failure.
Association of serum metabolites and gut microbiota at hospital admission with nosocomial infection development in patients with cirrhosis.
2022
Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
Plain English This study looked at patients with cirrhosis to understand why some develop hospital infections after being admitted. Out of 602 patients, 101 (17%) developed infections, leading to worse outcomes like organ failure and increased hospital stays. Factors such as higher liver disease severity (MELD scores), higher infection rates at admission, and specific blood metabolites were linked to a greater risk of these infections, highlighting the role of both blood chemistry and gut bacteria in predicting infection risks.
Who this helps: This research benefits doctors and healthcare providers by giving them better tools to predict and potentially prevent infections in cirrhosis patients.
Prevalence, incidence, and severity associated with viral respiratory tract infections in Colombian adults before the COVID-19 pandemic.
2022
Journal of infection and public health
Fuentes YV, Ibáñez-Prada ED, Serrano-Mayorga CC, Pfizenmaier CG, Cano M +9 more
Plain English This study examined the impact of viral respiratory infections, especially acute respiratory illness (ARI), on adults in Colombia from 2013 to 2019. It found that ARI was most common in 2018, affecting 23.3% of the 2,304 adults studied, with pneumonia being the most frequent diagnosis at 59.1%. The mortality rate was significant at 21.8%, highlighting the serious health threat posed by these infections, particularly from influenza.
Who this helps: This research benefits healthcare providers and policymakers focused on reducing respiratory illness in adults.
ICU and Hospital Outcomes in Patients with Hepatopulmonary Syndrome Undergoing Liver Transplantation.
2022
Lung
Aragon Pinto C, Iyer V, Almodallal YA, Albitar H, Dubrock H +11 more
Plain English This study looked at how patients with hepatopulmonary syndrome (HPS) do in the hospital and intensive care unit (ICU) after undergoing a liver transplant. Researchers examined data from 137 patients and found that 95.6% needed mechanical ventilation, but most (74%) were able to breathe on their own within 24 hours. The overall risk of dying in the hospital was low at 3.6%, and how severe the HPS was did not affect survival rates.
Who this helps: This research benefits doctors and healthcare providers managing liver transplant patients with HPS.
Low Predictability of Readmissions and Death Using Machine Learning in Cirrhosis.
2021
The American journal of gastroenterology
Hu C, Anjur V, Saboo K, Reddy KR, O'Leary J +14 more
Plain English This study looked at how well artificial intelligence (AI) can predict hospital readmissions and death in patients with cirrhosis, a serious liver condition. Researchers analyzed data from 2,170 patients and found that 28% were readmitted within 30 days, 47% within 90 days, and 13% died within 90 days. The AI models used were only mildly successful, with prediction accuracy similar to traditional scoring systems, showing that more information is needed to make better predictions.
Who this helps: This research benefits doctors and healthcare providers by highlighting the challenges in predicting outcomes for cirrhosis patients.
Clinical Outcomes After Liver Transplantation in Patients With Portopulmonary Hypertension.
2021
Transplantation
Cartin-Ceba R, Burger C, Swanson K, Vargas H, Aqel B +8 more
Plain English This study looked at how well patients with portopulmonary hypertension (POPH) do after getting a liver transplant. Out of 228 POPH patients, 50 had a liver transplant, and after the surgery, 42% were able to stop taking their blood pressure medications for the lungs. However, 1, 3, and 5 years after the transplant, survival rates were 72%, 63%, and 60%, meaning that many patients did not survive long-term, especially those who had higher lung pressures before the transplant.
Who this helps: This research helps patients with POPH and their doctors understand the risks and benefits of liver transplantation.
Direct-Acting Antiviral Therapy in Liver Transplant Patients With Hepatocellular Carcinoma and Hepatitis C.
2021
Transplantation direct
Tse CS, Yang JD, Mousa OY, Nelson KM, Pungpapong S +8 more
Plain English This study examined the effects of a new treatment for hepatitis C in patients who had liver transplants for liver cancer. Researchers tracked 171 patients and found that taking direct-acting antivirals (DAAs) before the transplant did not increase the chances of cancer coming back after the transplant, with recurrence rates of 5% for those on DAA compared to 14% for those who weren’t. However, the success rate of the treatment was lower before the transplant (75%) than after (97%), meaning treating the virus post-transplant was more effective.
Who this helps: This research benefits patients with hepatitis C and liver cancer awaiting transplant, as well as doctors managing their care.
Burden of invasive pneumococcal disease (IPD) over a 10-year period in Bogotá, Colombia.
2021
International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases
Severiche-Bueno DF, Severiche-Bueno DF, Bastidas A, Caceres EL, Silva E +5 more
Plain English This study looked at invasive pneumococcal disease (IPD) in Bogotá, Colombia, over 10 years, to see how the pneumococcal conjugate vaccine-10 (PCV-10) affected its spread. Researchers found that from 2007 to 2011, common types of the bacteria included serotypes 14 and 1, but after the vaccine was introduced from 2012 to 2017, the most common types shifted to 19A and 3. While IPD cases dropped significantly among children under 5 years old, the rates did not change for adults aged 50 and older, meaning that although the vaccine helped protect younger kids, the overall burden of the disease in Bogotá remained steady.
Who this helps: This helps young children and their families by reducing the risk of severe disease.
Impact of COVID-19 Infection on Patients with Cancer: Experience in a Latin American Country: The ACHOCC-19 Study.
2021
The oncologist
Ospina AV, Bruges R, Mantilla W, Triana I, Ramos P +30 more
Plain English Researchers studied how COVID-19 affected cancer patients in Colombia and followed 742 individuals from April to October 2020. They found that 26.3% of these patients died within 30 days of infection, with older patients and those with specific types of cancer facing higher risks. For instance, patients over 70 years old or with metastatic cancer had significantly higher mortality rates, highlighting the need for targeted care for vulnerable groups during health crises.
Who this helps: This information is crucial for doctors and healthcare providers managing cancer patients during pandemics.
Invasive pneumococcal disease burden in hospitalized adults in Bogota, Colombia.
2021
BMC infectious diseases
Narváez PO, Gomez-Duque S, Alarcon JE, Ramirez-Valbuena PC, Serrano-Mayorga CC +6 more
Plain English This study looked at the serious lung infections caused by the Streptococcus pneumoniae bacteria in hospitalized adults in Bogotá, Colombia, from 2012 to 2019. It found that 60% of cases were pneumonia, and the most common bacterial types identified were 19A and 3. The study reported a high death rate of 30.3%, with over half of the patients needing intensive care (52.6%) and many requiring ventilation support.
Who this helps: This information is valuable for doctors treating pneumonia and can guide public health initiatives to improve patient care.
An Open-Label, Dose-Escalation Study to Assess the Safety and Efficacy of IL-22 Agonist F-652 in Patients With Alcohol-associated Hepatitis.
2020
Hepatology (Baltimore, Md.)
Arab JP, Sehrawat TS, Simonetto DA, Verma VK, Feng D +15 more
Plain English This study examined a new treatment called F-652, which targets a protein involved in inflammation and liver healing, for patients suffering from alcohol-associated hepatitis. They tested F-652 on 18 patients and found that it was safe and led to significant improvements; 83% of patients showed better liver function after treatment compared to just a small percentage in comparison groups. This is important because it shows that F-652 could help enhance liver function and reduce inflammation in patients with this serious condition, paving the way for further clinical trials.
Who this helps: Patients with alcohol-associated hepatitis.
Major Trends in Gastroenterology and Hepatology Between 2010 and 2019: An Overview of Advances From the Past Decade Selected by the Editorial Board of The American Journal of Gastroenterology.
2020
The American journal of gastroenterology
Bajaj JS, Brenner DM, Cai Q, Cash BD, Crowell M +29 more
Sorafenib in Hepatopulmonary Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial.
2019
Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
Kawut SM, Ellenberg SS, Krowka MJ, Goldberg D, Vargas H +14 more
Plain English This study looked at the drug sorafenib to see if it helps patients with hepatopulmonary syndrome (HPS), a serious condition affecting the lungs and liver. The research involved 28 patients, half receiving sorafenib and half a placebo, and found that after three months, the drug did not significantly improve oxygen levels in the blood or any other major disease indicators. However, while sorafenib lowered certain markers related to blood vessel growth, it also negatively affected patients' mental well-being.
Who this helps: This research is relevant for doctors and researchers looking for effective treatments for patients with hepatopulmonary syndrome.
The West coast regional safety pharmacology society meeting update: Filling translational gaps in safety assessment.
2019
Journal of pharmacological and toxicological methods
Abi-Gerges N, McMahon C, Vargas H, Sager P, Chui R +9 more
Plain English This meeting brought together scientists to discuss new ways to assess the safety of drugs, focusing on issues like heart rhythm, seizure models, and advanced research methods. They presented innovative techniques, including those using stem cells, to better understand drug effects and improve patient safety. This is important because it helps ensure that new medications are safer and more effective for patients.
Who this helps: This benefits patients and healthcare providers by improving drug safety assessments.
Twice-Daily Telaprevir for Posttransplant Genotype 1 Hepatitis C Virus: A Prospective Safety, Efficacy, and Pharmacokinetics Study.
2018
Experimental and clinical transplantation : official journal of the Middle East Society for Organ Transplantation
Rubin RA, Russo MW, Brown KA, Fontana RJ, Levitsky J +3 more
Plain English This study looked at how effective and safe a medication called telaprevir is for treating hepatitis C in people who have received liver transplants. Out of 61 patients, 37 (61%) showed a lasting response to the treatment after taking telaprevir along with other medications. The study also found that some groups, like those without liver damage, had even higher success rates, with up to 91% responding positively. It’s important because it shows that this combination treatment can lead to better outcomes for patients who have had a liver transplant and are dealing with hepatitis C.
Who this helps: Patients who have undergone a liver transplant and have chronic hepatitis C.
A Neural Network Approach for Building An Obstacle Detection Model by Fusion of Proximity Sensors Data.
2018
Sensors (Basel, Switzerland)
Farias G, Fabregas E, Peralta E, Vargas H, Hermosilla G +2 more
Plain English This study looked at how to improve obstacle detection for mobile robots by combining data from different types of sensors, like ultrasonic and infrared sensors. The researchers created a new model using artificial neural networks, which automatically calibrates the sensors and provides more accurate distance estimates to obstacles. This new method simplifies the calibration process and could lead to better performance in various environments.
Who this helps: This benefits robot manufacturers and developers who aim to enhance robot navigation and safety.
Persistence of Virologic Response after Liver Transplant in Hepatitis C Patients Treated with Ledipasvir / Sofosbuvir Plus Ribavirin Pretransplant.
2017
Annals of hepatology
Yoshida EM, Kwo P, Agarwal K, Duvoux C, Durand F +15 more
Plain English This study looked at 17 patients with chronic hepatitis C who received a combination treatment of ledipasvir, sofosbuvir, and ribavirin before undergoing liver transplants. The results showed that 94% of patients (16 out of 17) maintained a successful response to the treatment 12 weeks after their transplants, even if they had to stop treatment early. This is important because it highlights that effective pre-transplant treatment can help prevent hepatitis C from coming back after the transplant, improving patient outcomes.
Who this helps: This benefits patients with hepatitis C needing a liver transplant.
Wong F, O'Leary JG, Reddy KR, Garcia-Tsao G, Fallon MB +10 more
Plain English This study examined how baseline kidney function affects outcomes for hospital patients with cirrhosis, a serious liver condition. Researchers looked at 653 patients and found that 47% developed acute kidney injury (AKI). Patients with higher initial kidney function levels were at a greater risk of AKI progression and had lower survival rates, with a significant predictor of 30-day mortality being an increase in kidney function by 0.70 mg/dl.
Who this helps: This information is crucial for doctors treating cirrhotic patients, as it helps identify those at higher risk for complications and guides monitoring and treatment.
Journal of pharmacological and toxicological methods
Pugsley MK, Authier S, Brabham T, Soloviev M, Markgraf CG +8 more
Plain English This study looked at the salaries and career details of members of the Safety Pharmacology Society, which includes professionals in safety pharmacology and related fields. Out of 453 members surveyed, 129 responded, revealing that 52% earn between $40,000 and $120,000 annually, with those having over 12 years of experience making more money. These findings highlight the diverse pay and career paths within this field, helping to inform current and future professionals about their potential earnings and job trends.
Who this helps: Current and aspiring safety pharmacologists and their employers.
The 3-month readmission rate remains unacceptably high in a large North American cohort of patients with cirrhosis.
2016
Hepatology (Baltimore, Md.)
Bajaj JS, Reddy KR, Tandon P, Wong F, Kamath PS +10 more
Plain English This study looked at why patients with liver disease (cirrhosis) get readmitted to the hospital within three months after they are discharged. Researchers found that about 53% of these patients returned to the hospital, often for liver-related issues, with the highest risk for those having a more severe illness, diabetes, or previous brain issues related to liver disease. Understanding these factors can help doctors monitor and treat these patients more effectively, potentially decreasing hospital readmissions.
Who this helps: Patients with cirrhosis and their doctors.
Was access to health care easy for immigrants in Spain? The perspectives of health personnel in Catalonia and Andalusia.
2016
Health policy (Amsterdam, Netherlands)
Vázquez ML, Vargas I, Jaramillo DL, Porthé V, López-Fernández LA +4 more
Plain English This study looked at how easy it is for immigrants in Spain to access healthcare, focusing on the views of healthcare workers in Catalonia and Andalusia. Researchers interviewed 92 health professionals and found that, while many thought it was easy for immigrants to get care, significant barriers still existed—especially with obtaining health cards and accessing services. For example, in Catalonia, those without health cards faced higher fees and longer distances to healthcare in rural areas. This matters because even with policies aimed at providing universal healthcare, many immigrants still struggle to access the services they need.
Who this helps: This primarily helps immigrants seeking healthcare in Spain.
Plain English This study looked at the presence and types of human papillomavirus (HPV) in 200 women who had abnormal Pap smears in Bogotá, Colombia. It found that 70% of these women were infected with HPV, with 46.4% having high-risk types that could lead to cancer. Understanding these HPV types is important because it can improve health programs and vaccination efforts to protect women from cervical cancer.
Who this helps: This benefits women at risk of cervical cancer and health professionals involved in cervical cancer prevention.
Long working hours and health in Europe: Gender and welfare state differences in a context of economic crisis.
2016
Health & place
Artazcoz L, Cortès I, Benavides FG, Escribà-Agüir V, Bartoll X +2 more
Plain English This study looked at how moderately long working hours affect people's health across different countries in Europe. Researchers analyzed data from over 22,000 workers and found that longer hours were linked to worse health, particularly in countries with traditional family roles and especially among women in Southern and Continental Europe. This matters because it highlights that long working hours can harm health, especially during tough economic times, indicating a need for better work-life balance policies.
Who this helps: This helps workers, especially women in certain European countries.
Magnetic resonance elastography (MRE) in assessing hepatic fibrosis: performance in a cohort of patients with histological data.
2015
Abdominal imaging
Batheja M, Vargas H, Silva AM, Walker F, Chang YH +2 more
Plain English This study looked at how well a new imaging technique called magnetic resonance elastography (MRE) can measure liver stiffness compared to traditional liver biopsies. Researchers found that MRE readings were significantly higher in patients with more severe liver fibrosis: for patients with severe fibrosis, the stiffness was about 5.9 kPa, whereas for those with mild to moderate fibrosis, it was around 2.80 kPa. This matters because MRE, a non-invasive test, can effectively help identify different stages of liver disease without the need for a biopsy.
Who this helps: This benefits patients with liver disease and their doctors by providing a safer way to assess liver damage.
Viral Infection in Adults with Severe Acute Respiratory Infection in Colombia.
2015
PloS one
Remolina YA, Ulloa MM, Vargas H, Díaz L, Gómez SL +3 more
Plain English This study focused on adult patients in Bogotá, Colombia, who were hospitalized with severe respiratory infections. Researchers found that 69% of the patients had a viral cause for their illness, with influenza being the most common virus identified in about 31% of cases. The study revealed that 43% of patients required intensive care, nearly 36% needed mechanical ventilation, and 15% died, highlighting the serious nature of these infections and the need for effective treatments.
Who this helps: This information benefits patients and healthcare providers by improving understanding of severe respiratory infections and guiding treatment strategies.
Characterization of glue sizing layers in Portuguese wood paintings from the 15th and 16th centuries by SEM secondary electron images and μ-FTIR.
2014
Microscopy and microanalysis : the official journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada
Antunes V, J Oliveira M, Vargas H, Candeias A, Seruya A +3 more
Plain English This study looked at the glue layers used in 15th and 16th-century Portuguese wood paintings to understand their chemical and physical characteristics. The researchers found that these layers, made mainly from animal glue, are critical for the painting's stability, and they developed methods to analyze them using advanced imaging techniques. This is important because knowing more about these sizing layers can help in the conservation and restoration of historical artworks.
Who this helps: This benefits conservators and restorers of historic paintings.
Phase II study of avatrombopag in thrombocytopenic patients with cirrhosis undergoing an elective procedure.
2014
Journal of hepatology
Terrault NA, Hassanein T, Howell CD, Joshi S, Lake J +5 more
Plain English This study looked at how well avatrombopag, a new medication, works for patients with low platelet counts (thrombocytopenia) due to cirrhosis who are having elective surgery. Researchers divided 130 patients into groups receiving either avatrombopag or a placebo, and found that 49% of those treated with avatrombopag saw their platelet levels rise significantly compared to only about 6% in the placebo group. These results show that using avatrombopag can help safely boost platelet counts before surgery, which is important to reduce bleeding risks during these procedures.
Who this helps: Patients with liver cirrhosis who need surgery.
Short-term monotherapy with IDX184, a liver-targeted nucleotide polymerase inhibitor, in patients with chronic hepatitis C virus infection.
2012
Antimicrobial agents and chemotherapy
Lalezari J, Asmuth D, Casiró A, Vargas H, Lawrence S +7 more
Plain English This study looked at a new treatment called IDX184 for patients with chronic hepatitis C virus infection, specifically those with genotype-1. Researchers gave different doses of IDX184 (25, 50, 75, and 100 mg) to 41 patients for three days and found that higher doses reduced the virus levels in the blood, with the 100 mg dose showing a decrease of about 0.7 log10 in HCV RNA levels. Importantly, the treatment was safe, with no serious side effects reported.
Who this helps: This benefits patients with chronic hepatitis C, particularly those who have not previously received treatment.
K Rajender Reddy Patrick S Kamath Florence Wong Alfonso J Rodriguez-Morales Luis Felipe Reyes Cristian C Serrano-Mayorga Sandra Gomez Alirio Bastidas Jasmohan S Bajaj
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