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757 citation(s) found for "Saénz, Ricardo".

BET Bromodomain Pan-D1-Biased Inhibitors with Improved Drug-Like Properties and hERG Profiles as Therapies for Inflammatory Liver Injury
Vail, Nora R. , Doskey, Luke C. , Peterson, Elliott , Scholtz, Cole R. , Gallardo‐Macias, Ricardo , Khanal, Shalil , Buhrow, Sarah A. , McPherson, Joseph E., Sepulveda, Tomás I., Zanon, Trina L., Jerez, Sofia, Alexander, Juliana R. , Gurvich, Vadim J. , Reid, Joel M. , Shi, Ke , Aihara, Hideki , Topczewski, Joseph J., Malhi, Harmeet , Shah, Vijay H. , Pomerantz, William C. K. , Tretyakova, Natalia Y. , Shi, Ke, Topczewski, Joseph J.

No container title available | September 23, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.26434/chemrxiv.15009359/v1 Get It

BET bromodomain inhibitors are efficacious as anti-inflammatory compounds, but clinical translation is hampered by dose-limiting toxicities from non-selective inhibition. We herein report compounds 16 and 26, based on previously reported 4-methyl-1,2,3-triazole-based inhibitor, DW34. 16 has a BRD4 BD1 Ki of 10 nM, and up to 13–38-fold selectivity for BRD4 BD1 over other BD2 domains, and an improved hERG affinity of 4.24 µM over DW34. 26, A biscyclopropyl analog of 16 showed further enhancement of BD1 selectivity over BD2 (26–203-fold), but exhibited more potent hERG inhibition. Compound 16 had improved liver and plasma clearance over DW34, with good biodistribution to the liver, and had an intracellular target-engagement affinity Ki of 92 nM, with reduction of Ccl2, Cxcl1, AST, and ALT in in vitro and in vivo mouse models of liver inflammation. 16 represents a useful lead for treating inflammatory liver diseases, with improved specificity, drug-like properties, and reduced hERG affinity.
Clostridium ramosum Bacteremia: Clinical Significance and Outcomes in a Multicenter Retrospective Cohort
Gavrancic, Tatjana , Stoddard, Kassandra, Tahir, Muhammad Waqas , Gorasevic, Marko, Cortes, Melissa, Prada, Libardo Rueda , Baptista, Aleksandra Murawska , Pagán, Ricardo J, Schultz, Carrie S., Elwasilla, Sammer M, Schuetz, Audrey N, Dumic, Igor , Pagán, Ricardo J. , Elwasila, Sammer M , Schuetz, Audrey N.

No container title available | September 21, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-10554696/v1 Get It

Abstract Background: Clostridium ramosum ( C. ramosum ) is an anaerobic gram-positive bacillus of the human intestine and a rare cause of bacteremia. This retrospective cohort study evaluated clinical characteristics and outcomes of a multicenter cohort of adults with C. ramosum bacteremia. Methods: This multicenter retrospective cohort included adults (≥ 18 years) with true C. ramosum bacteremia at Mayo Clinic hospitals in Arizona, Florida, Minnesota, and Wisconsin from September 1, 2012, through December 31, 2025. Data were collected through search for C. ramosum in microbiological culture records. Clinical characteristics assessed included immune status, source of bacteremia, presence of sepsis, neutropenic fever, monomicrobial vs. polymicrobial bacteremia, antimicrobial resistance patterns, antimicrobial therapy, length of stay and 30-day all cause mortality. Exploratory odds ratios (ORs) with 95% confidence intervals (CIs) were reported. Results: Among 90 patients with a positive C. ramosum blood culture, 17 were classified as contaminants and 73 comprised the study cohort. Median age was 66.0 years (IQR, 56.0–75.0); 44 (60.3%) were male and 33 (45.2%) were immunocompromised (including 26 with active malignancy, while the remaining 7 were received biologic immunosuppression). The most common infection sources were gastrointestinal (32/73, 43.8%) and central line-related (8/73, 11%). At presentation, 50.7% of patients met criteria for sepsis and 15/73 (20.5%), were in septic shock. Of 73 isolates tested, 31/73 (44.3%) were clindamycin resistant and 9/73 (12.9%) tested intermediate. Anaerobic-active antimicrobial therapy was received by 53/73 (72.6%). Thirty-day mortality was 11/73 (15.1%). Mortality was 30.0% (6/20) with therapy without reliable anaerobic activity and 9.4% (5/53) with anaerobic-active antimicrobial therapy (OR, 4.02; 95% CI, 0.88–19.46; P = 0.060). The median hospital LOS was 8.0 days. Among 30-day survivors, anaerobic active antimicrobial therapy was associated with a shorter median LOS compared to therapy without reliable anaerobic activity (8.5 vs. 12.0 days). Immunocompromised patients had higher odds of monomicrobial C. ramosum bacteremia than immunocompetent patients (OR 3.16, 95% CI 1.19–8.39; p = 0.03). Patients with polymicrobial bacteremia had higher odds of sepsis (OR, 3.89; 95% CI, 1.43–10.55; P = 0.008) and septic shock (OR, 5.66; 95% CI, 1.17–27.36; P = 0.020). Patients with malignancy or neutropenia demonstrated significantly lower odds of presenting in septic shock (p = 0.018; p = 0.029 retrospectively). Microbiological clearance was achieved in 91.3% (42/46) of evaluable cases. Conclusions: This largest reported cohort defines the clinical and microbiological profile of C. ramosum bacteremia. Frequent clindamycin nonsusceptibility is clinically actionable. Several clinical associations found on univariable analysis should be further investigated in larger studies.
Doppler High‐Frequency Ultrasound in Vascular Complications
Zattar-Ramos, Luciana , Zattar, Gabrielle Aline, Faria, Gladstone Eustáquio de Lima , Boggio, Ricardo Frota , Cerri, Giovanni Guido, Horvat, Natally , Zattar, Luciana C , Bonini, Luca Campassi , Faria, Gladstone Eustáquio de Lima , Horvat, Natally

Journal of Ultrasound in Medicine | August 22, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1002/jum.70396 | PMID 42631914 Get It

The increase in the number of injectable filler procedures has led to a rise in associated complications, with vascular compromise being the most feared. As a result, blood flow can be interrupted, leading to ischemia, necrosis or ulcerations, pulmonary embolism, blindness, and cerebral vascular injuries. In this context, Doppler high‐frequency ultrasound (DHFUS) is a radiological tool that can be used to avoid, to diagnose, and to treat vascular complications. This study aims to review facial vessels anatomy and major variations, describe the examination technique, probe positions and teach how to recognize vascular occlusions, in order to avoid negative outcomes.
Diffuse Large B-Cell Lymphoma Masquerading as Cholangiocarcinoma in a Young Adult
Gil-López, Fernando, Lukens, Frank , Paz‐Fumagalli, Ricardo , Moustafa, Muhamad Alhaj, Morales, Miguel Cadenas, Riley, Guillermo, Mousa, Omar Y., Lukens, Frank J., Cadenas, Miguel , Moustafa, Muhamad Alhaj , Majeed, Umair , Guo, Ruifeng

ACG Case Reports Journal | August 20, 2026 | Volume: 13 | Issue: 8 | Pages: No page available

10.14309/crj.0000000000002271 | PMID 42626672 Get It

ABSTRACT A previously healthy 29-year-old man presented with abdominal pain and was found to have a liver mass with periductal infiltration and a stricture of the common bile duct, concerning for cholangiocarcinoma. Hepatic function panel disclosed alanine transaminase 293 U/L, aspartate aminotransferase 122 U/L, γ-glutamyl transferase 2019 U/L, normal total bilirubin, carcinoembryonic antigen, and carbohydrate antigen 19-9. Biopsy established the diagnosis of diffuse large B-cell lymphoma, with no underlying hepatic disease. He was started on polatuzumab-rituximab-cyclophosphamide-doxorubicin-prednisone chemotherapy and achieved complete tumor response. This case highlights the importance of a thorough evaluation of liver tumors and the critical role of tissue diagnosis.
Adopting a Standard of Care for Systemic Sclerosis: The Mayo Clinic Experience
Ayala, Ernesto, Iqbal, Madiha , Meier, Tristan, Deng, Yihong, Murthy, Hemant, Foran, James, Ailawadhi, Sikander, Kharfan-Dabaja, Mohamed, Roy, Vivek, Abril, Andy , Menser, Terri , Iqbal, Madiha , Deng, Yihong , Ailawadhi, Sikander , Parrondo, Ricardo D , Kharfan‐Dabaja, Mohamed A. , Roy, Vivek

Arthritis Care & Research | July 31, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1002/acr.80129 | PMID 42533863 Get It

Objective Systemic sclerosis (SSc) is an autoimmune disease marked by immune dysregulation, leading to progressive fibrosis and multiorgan dysfunction. Autologous hematopoietic cell transplantation (autoHCT) has demonstrated superiority over conventional immunosuppression in randomized trials yet remains underused in the United States. We report outcomes following implementation of autoHCT as a standard‐of‐care strategy at our institution. Methods We performed a retrospective analysis of consecutive patients with severe SSc undergoing autoHCT between April 1, 2020, and December 31, 2023. Eligibility required progressive disease despite standard immunosuppressive therapy. Primary endpoints were overall survival (OS) and event free survival (EFS). Secondary endpoints included cumulative incidence of relapse and nonrelapse mortality (NRM), organ‐specific outcomes, and transplant‐related complications. Results Twenty‐five patients underwent autoHCT. Median age was 46 years; 80% were female. At a median follow‐up of 23 (interquartile range 16.4–31.9) months, two‐year OS was 91.67% (95% confidence interval [CI] 81.25–100.0) and EFS was 74.51% (95% CI 58.78–94.45). Two‐year cumulative incidence of relapse was 23.93% (95% CI 4.27 –43.59), and NRM was 8.33% (95% CI 2.97–19.64). Significant improvement in Modified Rodnan Skin Score was observed at day +90 and +180 ( P < 0.05), whereas pulmonary function stabilized. Infectious complications occurred in 56% of patients, primarily viral reactivations. Conclusion Implementation of autoHCT for severe SSc in a multidisciplinary care model was associated with favorable survival and meaningful improvement in skin disease, with acceptable toxicity. Earlier referral and optimization of conditioning strategies may further reduce relapse and treatment‐related morbidity.
Implementing a Hospital Internal Medicine Interest Group - Innovative and Personalized Structured Support for Future Hospitalists
Gavrancic, Tatjana , Hill, Ebone D., Pagán, Ricardo J, Jackson, B.F. , Laenger, Jessica, Zuberi, Eric , Hedges, Mary S., Cowdell, J. Colt, Jackson, Brittany , Zuberi, Eric C. , Hill, Ebone, Pagán, Ricardo J. , Laenger, Jessica , Hedges, Mary S. , Cowdell, Jed C.

Journal of Medical Education and Curricular Development | July 28, 2026 | Volume: 13 | Issue: No issue available | Pages: No page available

10.1177/23821205261474676 | PMID 42534303 Get It

Hospital medicine offers diverse career opportunities, yet formal guidance for residents pursuing hospitalist careers is often lacking. To address this gap, the Hospital Internal Medicine Interest Group (HIMIG) was launched at an academic institution in the Southeastern United States to provide structured mentorship and professional development. Residents expressing interest completed an entry survey to identify career goals and areas of focus, informing a longitudinal curriculum that included education, leadership, research, quality improvement, and networking. Seventeen residents (≈25% of the IM residency program) joined HIMIG, and 88% completed the initial survey. Education, leadership, and quality improvement were top interests, while mentorship and career guidance were primary motivators. A post-implementation survey revealed all participants met mentors and felt HIMIG supported their career goals. HIMIG demonstrates a flexible, personalized approach to hospitalist career development that may serve as a model for other programs.
Recent Cochrane review has serious flaws: A perspective of clinicians and researchers from around the world
Snyder, Heather M. , Tampi, Malavika P. , Aisen, Paul S., Allegri, Ricardo, Apostolova, Liana G., Atri, Alireza, Aurora, Sheena, Caramelli, Paulo, Cummings, Jeffrey, Fox, Nick C., Hardy, John, Lamb, Bruce T., Levey, Allan, Lopez, Oscar, Mummery, Catherine, Nitrini, Ricardo, Pahlke, Sarah, Petersen, Ronald C., Pike, K. Joanne, Porsteinsson, Anton P., Rabinovici, Gil D., Rafii, Michael, Raman, Rema, Sabbagh, Marwan N., Salloway, Stephen P., Scheltens, Philip, Schott, Jonathan M., Selkoe, Dennis J., Sevlever, Gustavo, Sperling, Reisa, Tansey, Malu Gamez, Dyck, Christopher van, Zetterberg, Henrik, Carrillo, Maria C., Hardy, John , Grinberg, Lea Tenenholz, Hardy, John , Aisen, Paul , Allegri, Ricardo , Apostolova, Liana G. , Atri, Alireza , Caramelli, Paulo , Crivelli, Lucía , Cummings, Jeffrey L. , Strooper, Bart De , Fox, Nick C, Grinberg, Lea T. , Lamb, Bruce T. , López, Oscar L. , Mummery, Catherine J. , Nitríni, Ricardo , Pahlke, Sarah , Petersen, Ronald C. , Porsteinsson, Anton P. , Rabinovici, Gil D. , Rafii, Michael S. , Raman, Rema, Salloway, Stephen , Scheltens, Philip , Schott, Jonathan M. , Selkoe, Dennis J. , Sevlever, Gustavo Emilio , Sperling, Reisa Anne , Tansey, Malú G. , Dyck, Christopher H. van , Zetterberg, Henrik , Carrillo, María C.

Alzheimer's & Dementia | July 28, 2026 | Volume: 22 | Issue: 7 | Pages: No page available

10.1002/alz.71696 | PMID 42516031 Get It

Abstract In response to a Cochrane review (published in April 2026) on the clinical trials of monoclonal antibodies targeting beta amyloid, this perspective outlines a number of critiques. The scientists, methodologists, subject‐matter experts, and clinicians on this perspective strongly recommend that the Cochrane editorial board consider a call for editorial response, correction of press materials, or commissioned reply to this review for four overarching reasons: (1) decision to pool antibodies that do and do not clear beta amyloid, (2) decision to include studies from a time when biomarkers of Alzheimer's disease were not available, (3) analytical and methodological limitations of the approach used, (4) conflating the distinct roles and methodological processes of systematic review and guideline methodologies, (5) contextualizing the present critique within the existing evidence‐synthesis literature, and (6) mechanistic inference beyond the scope of the presented analyses. Conclusions that may not accurately reflect treatment‐specific effects could cause significant downstream clinical and psychosocial harm to those currently undergoing treatment and their family members as well as individuals considering participation in Alzheimer's clinical trials.
Sex differences in dementia pathology and cognitive performance in a population‐based, ethnically diverse Brazilian autopsy study
Socher, Karen Luiza Ramos , Paes, Vítor Ribeiro , Rodriguez, Roberta Diehl, Silva, Caroline Matos, Ururahy, Raul Reis, Moraes, Filipe Oto Cunha de , Padrão, Inês Liguori, Pasqualucci, Carlos, Nitrini, Ricardo, Grinberg, Lea Tenenholz, Leite, Renata Elaine Paraizo , Ferreira, Naomi Vidal , Justo, Alberto Fernando Oliveira , Rodriguez, Roberta Diehl , Ururahy, Raul dos Reis , Ferriolli, Eduardo , Nitríni, Ricardo , Grinberg, Lea T. , Brucki, Sônia Maria Dozzi , Suemoto, Cláudia Kimie

Alzheimer's & Dementia | July 27, 2026 | Volume: 22 | Issue: 7 | Pages: No page available

10.1002/alz.71691 | PMID 42503573 Get It

Abstract INTRODUCTION Sex differences in dementia‐related neuropathology are understudied in diverse populations. METHODS We analyzed sex differences in neuropathological and cognitive data from the Brazilian Biobank for Aging Studies. Cognitive performance was evaluated with the Clinical Dementia Rating–Sum of Boxes (CDR‐SOB). Linear and logistic regression models were conducted, including interaction terms for age, race, and education. RESULTS In 2229 participants (50.7% female, mean age ± SD 75.4 ± 12.3 years, 62.1% White), female sex was associated with a higher odds of AD pathology (Braak: odds ratio [OR] = 1.42, 95% confidence interval [CI] = 1.17–1.72; Consortium to Establish a Registry for Alzheimer's Disease (CERAD): OR = 1.58, 95% CI = 1.27–1.98), and trans‐activation response (TAR) DNA‐binding protein 43 (TDP‐43) (OR = 1.77, IC 95% = 1.22–2.59), and lower odds of Lewy body disease (OR = 0.69, 95% CI = 0.51–0.95). Female participant had worse cognitive performance ( β = 1.56, 95% CI = 1.03–2.10). Sex modified associations of Braak, CERAD, TDP‐43, and cerebral amyloid angiopathy with cognition. Age also interacted with sex and pathology on CDR‐SOB. DISCUSSION Sex differences in the associations between sex and neuropathology suggest the need for sex‐informed dementia research.
Endoscopic Ultrasound-Guided Gallbladder Drainage
Baron, Todd H., Umar, Shifa, Lam, Gregory, Pannala, Rahul , Amateau, Stuart, Tielleman, Thomas, Khodorskiy, Dmitriy O., Companioni, Rafael Ching, Bedi, Gurneet, Torres, Ricardo Marrero, Chudy‐Onwugaje, Kenechukwu, Bhogal, Neil, Gelrud, Andrés , Gabr, Moamen, Shin, Eun Ji, Adler, Douglas G., Irani, Shayan , Kushnir, Vladimir, Sachdev, Mankanwal S., Sharma, Neil, Tyberg, Amy , Widmer, Jessica, Widmer, Jessica L , Canakis, Andrew , Baron, Todd H. , Amateau, Stuart K. , Tielleman, Thomas , Companioni, Rafael A. Ching, Chudy‐Onwugaje, Kenechukwu , Gabr, Moamen , Shin, Eun Ji , Adler, Douglas G. , Kushnir, Vladimir , Sachdev, Mankanwal S. , Sharma, Neil

Journal of Clinical Gastroenterology | July 23, 2026 | Volume: 60 | Issue: 8 | Pages: 685-694

10.1097/mcg.0000000000002409 | PMID 42490390 Get It

Acute cholecystitis affects ∼200,000 individuals annually in the United States, with laparoscopic cholecystectomy as the gold standard treatment. However, in high-risk surgical candidates, alternative drainage methods are necessary. Percutaneous transhepatic gallbladder drainage (PT-GBD) has traditionally served as the primary alternative intervention, offering rapid decompression, but is limited by a negative impact on the patient’s quality of life, the risk of long-term or even permanent tube placement, adverse events, and high recurrence rates. Endoscopic approaches, such as endoscopic transpapillary gallbladder drainage (ET-GBD) and, more recently, endoscopic ultrasound-guided gallbladder drainage (EUS-GBD), have emerged as viable alternatives to PT-GBD. EUS-GBD, first introduced in 2007, offers technical and clinical outcomes comparable to PT-GBD with fewer adverse events, shorter hospital stays, and lower rates of recurrence. The introduction of lumen-apposing metal stents (LAMS) has revolutionized EUS-GBD, simplifying deployment and enabling subsequent internal gallbladder access, which allows additional interventions such as cholecystoscopy and stone removal. EUS-GBD is now supported by international guidelines, and 1 device has achieved FDA approval for the management of acute cholecystitis in nonsurgical candidates. Proper patient selection is essential, guided by multidisciplinary evaluation, with EUS-GBD contraindicated in specific scenarios such as gallbladder perforation, coagulopathy, and large-volume ascites. Technical considerations include choice of access site (transgastric versus transduodenal), stent type, and procedural route [direct (freehand) or wire-guided]. Postprocedural care and stent management remain variable and nonstandardized. Emerging data suggest that interval cholecystectomy can still be performed safely after EUS-GBD. As adoption of EUS-GBD with LAMS expands, structured training and standardization of practice are crucial to optimizing outcomes.
Quantitative Prognostic Modeling in Aneurysmal Subarachnoid Hemorrhage: Multicenter Validation of the eSAH Score
Salman, Saif, Moy, Constantin Graf von , Haidenberger, Flora, Ahmed, Mahlika, Foettinger, Fabian, Sharma, Rohan, Gutierrez-Aguirre, Salvador, Toledo, Otávio de, Patel, Vishal , Yujia-Wei, David, Brandmeir, Nicholas, Lakkaraju, Kausik , Ombada, Mutaz , Aguilar-Salinas, Pedro, Miller, David, Erickson, B E, Hanel, Ricardo, Tawk, Rabih, Byrne, Richard, Salman, Saif , Haidenberger, Flora, Gutierrez‐Aguirre, Salvador F. , Toledo, Otavio F. De , Patel, Vishal, Jahromi, Behnam Rezai , Brandmeir, Nicholas J. , Erickson, B E, Tawk, Rabih G. , Freeman, William D.

No container title available | July 21, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.64898/2026.07.18.26358390 Get It

Abstract Background aneurysmal subarachnoid hemorrhage (aSAH) is neurological emergency associated with substantial mortality and disability. Current grading systems such as the modified Fisher Scale (mFS) and World Federation of Neurological Societies (WFNS) score, rely on semiquantitative and examination based assessments. Hence, they demonstrate limited predictive precision. The enhanced subarachnoid hemorrhage (eSAH) score is a simplified quantitative model integrating age, Glasgow Coma Scale (GCS), and cisternal subarachnoid hemorrhage volume (SAHV) to predict clinical outcomes after aSAH. Methods We performed a retrospective multicenter cohort study that included 1088 patients across three tertiary-care centers the United States. Predictive performance for unfavorable functional outcome, in-hospital mortality and delayed cerebral ischemia (DCI) was evaluated using receiver operating characteristic (ROC) analysis and area under the curve (AUC). Comparative analyses were performed and compared to the WFNS and mFS grading systems. Results the eSAH score demonstrated excellent discrimination for unfavorable functional outcome at discharge ( AUC 0.89 ) and in-hospital mortality (AUC 0.87). The DCI subscore demonstrated good discriminatory performance for predicting DCI (AUC 0.77). Compared with conventional grading systems, this was superior to both the WFNS (AUC 0.75) and the mFS ( AUC 0.70). increasing eSAH scores were additionally associated with progressively higher rates of mortality and unfavorable functional outcomes. Conclusion the eSAH score demonstrates strong external validity, reproducibility and superior predictive performance compared with conventional grading systems in a large multicenter cohort. These findings support the clinical utility of quantitative hemorrhage burden integration for early risk stratification in patients with aSAH.