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558 citation(s) found for "Núñez, Harold".

A Genetic Risk Variant Associated With the Risk of Primary Biliary Cholangitis Is Inherited From Neanderthals
Gerussi, Alessio , Caime, Chiara , Wang, Harold, Cordell, Heather J. , Mells, George , Sandford, Richard N., Jones, David , Hirschfield, Gideon, Siminovitch, Katherine A., Gershwin, M. Eric , Juran, Brian D., Atkinson, Elizabeth J. , Cheung, Angela, Andrade, Mariza de , Baras, Aris, Lazaridis, Konstantinos N. , Asselta, Rosanna , Invernizzi, Pietro , Group, Italian PBC Genetics Study, Jones, David E , Sironi, Manuela , Sankararaman, Sriram , Sandford, Richard , Hirschfield, Gideon M. , Group, Italian PBC Genetics Study

Liver International | September 23, 2026 | Volume: 46 | Issue: 10 | Pages: No page available

10.1111/liv.70868 | PMID 42773620 Get It

ABSTRACT Background Primary Biliary Cholangitis (PBC) is an autoimmune cholangiopathy with polygenic architecture and unknown aetiology. Evidence links Neanderthal‐derived genetic variants to autoimmune conditions; however, their contribution to PBC susceptibility remains unexplored. Objective We investigate whether archaic alleles influence PBC risk. Design Genotype data from four PBC cohorts were analysed: CANUK (4615 cases, 9233 controls), OLD IT (444 cases, 901 controls), NEW IT (255 cases, 579 controls) and MAYO (891 cases, 621 controls). Association testing with 235 592 Neanderthal Informative Markers (NIMs) was performed, adjusting for population stratification. Heritability was estimated using RHE‐mc and temporal haplotype dynamics were assessed using ancient DNA data from Europe and Asia. Results A Neanderthal‐derived variant in TNPO3 (rs12531711), previously reported by Cordell et al. showed strong association in CANUK ( p = 2.04 × 10 −26 ) and replicated across all validation cohorts. This variant functions as an eQTL, upregulating IRF5 and downregulating TNPO3 in blood. It is rare in African populations but common both in Europeans and Asians. Temporal analysis of the haplotype carrying rs12531711 revealed frequency increased substantially during the Bronze Age (5000–3000 BP), rising from 2.0% to 7.7% in Europe and 3.4% to 17.4% in Asia, before stabilizing. Despite this strong single‐variant association, the heritability explained by NIMs was not significantly different from that of non‐NIM variants. Conclusion A Neanderthal‐derived variant contributes to PBC risk and its frequency increased in the Bronze Age, possibly due to pathogen‐driven selection. Archaic introgression overall has limited influence on PBC heritability. Functional studies are needed to elucidate the role of rs12531711.
Pathologic Complete Response (pCR) Rate and Predictors of Response to Taxane, Trastuzumab, and Pertuzumab in HER2‑Positive Breast Cancer: Secondary Analyses of EA1181/CompassHER2 pCR
Tung, Nadine , DeMichele, Angela , Winer, Eric P. , Wright, Jean L. , Recht, Abram , Weiss, Anna C., Tjoe, Judy A., Feldman, Sheldon M. , Smith, Mary Lou , O’Sullivan, Ciara C. , Sardesai, Sagar D., Irvin, W. J., Battelli, Chiara, Krie, Amy, D’Abreo, Nina , Shah, Payal D. , DeMichele, Angela , Prat, Aleix , Winer, Eric , Wright, Jean L , Recht, Abram , Rocque, Gabrielle , O'Sullivan, Ciara Catherine , Tang, Shou-Ching , Modi, Shanu , Bagegni, Nusayba , Krie, Amy K , Telli, Melinda L , Borges, Virginia F , D'Abreo, Nina , Shah, Payal D , Villagrasa, Patricia , Badve, Sunil S , Partridge, Ann H , Miller, Kathy D , Carey, Lisa A , Wolff, Antonio C , Tung, Nadine , Zhao, Fengmin , Weiss, Anna , Tjoe, Judy A., Rocque, Gabrielle B. , Sardesai, Sagar , Modi, Shanu , Irvin, William , Unni, Nisha G , George, Mridula Annette , Telli, Melinda L. , Borges, Virginia F. , Badve, Sunil , Partridge, Ann H. , Miller, Kathy D. , Carey, Lisa A. , Wolff, Antonio C.

Journal of Clinical Oncology | August 20, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1200/jco-25-02255 | PMID 42623567 Get It

PURPOSE EA1181 (ClinicalTrials.gov identifier: NCT04266249 ) is a single-arm trial evaluating neoadjuvant taxane, trastuzumab, and pertuzumab (THP) in patients with clinical stage II/IIIa human epidermal growth factor receptor 2 (HER2)–positive breast cancer. This report focuses on the secondary end points of pathologic complete response (pCR) rates and associated factors. The primary end point—3-year recurrence-free survival among patients achieving a pCR (ypT0/Tis, ypN0)—will be reported when data mature. METHODS Patients received four cycles of trastuzumab and pertuzumab (HP) with either once per week paclitaxel (12 weeks) or docetaxel (every 3 weeks for four cycles), followed by surgery. Clinicopathologic characteristics were assessed in all patients. The HER2DX pCR score was determined using diagnostic biopsy samples in a representative subset. Logistic regression models identified factors associated with pCR. RESULTS A total of 2,175 patients were enrolled (781 HER2+/estrogen receptor‑negative [ER–]; 1,394 HER2+/ER+). Of 2,141 patients who initiated THP, the overall pCR rate was 43.8%: 63.7% in HER2+/ER– and 32.4% in HER2+/ER+ tumors. Higher pCR rates were observed in tumors that were ER-negative or low ER expressing, progesterone receptor-negative or low expressing, HER2 immunohistochemistry (IHC) 3+, and in patients treated with once per week paclitaxel. T3 disease was associated with a lower pCR rate in HER2+/ER– tumors; otherwise, tumor (T) and nodal (N) stage did not significantly affect pCR. Among 569 patients assessed for HER2DX pCR scores, a high score was independently associated with higher pCR rates, after adjustment for clinicopathologic variables. CONCLUSION Neoadjuvant THP achieved pCR in nearly two-thirds of patients with HER2+/ER– and one third with HER2+/ER+ breast cancer. Low hormone receptor expression, HER2 IHC 3+ status, once per week paclitaxel use, and a high HER2DX pCR score were independent predictors of pCR. These findings should help optimize risk stratification and treatment personalization for patients with HER2-positive breast cancer.
Phase II Randomized Trial of Radium-223 Dichloride and Cabozantinib in Patients With Renal Cell Carcinoma With Bone Metastases: RADICAL (Alliance A031801)
McKay, Rana R. , Ballman, Karla V. , Atherton, Pamela J. , Ajmera, Archana , Baghdadi, Tareq Al, Baumann, Brian C. , Beltran, Himisha , Berg, Stephanie , Chen, Ronald C. , Choudhury, Atish D. , Jacene, Heather A. , Kilari, Deepak , Kwok, Young , Swami, Umang , Tan, Alan , Yang, Yuanquan , Zhang, Tian , Galsky, Matthew D. , George, Daniel J. , Baghdadi, Tareq Al , Cole, Suzanne , Jacene, Heather A , Lang, Joshua M , Kilari, Deepak , Kwok, Young , McGregor, Bradley , Morris, Michael J , Parikh, Mamta , Swami, Umang , Tan, Alan , Yang, Yuanquan A , Zhang, Tian , Galsky, Matthew D , Rosenberg, Jonathan E , George, Daniel J , Choueiri, Toni K , Baumann, Brian C , Choudhury, Atish D , Chen, Ronald , Ballman, Karla , Berg, Stephanie A , Cole, Suzanne , Lang, Joshua M. , McGregor, Bradley A. , Morris, Michael J. , Choueiri, Toni K.

Journal of Clinical Oncology | July 27, 2026 | Volume: 44 | Issue: 24 | Pages: 2341-2352

10.1200/jco-26-01135 | PMID 42507969 Get It

PURPOSE Bone metastases (BM) occur in approximately 30% of patients with metastatic renal cell carcinoma (mRCC) and are associated with poor survival and symptomatic skeletal events (SSEs). Radium-223, an alpha-emitting bone-seeking radioisotope, and cabozantinib, a tyrosine kinase inhibitor, have demonstrated activity in BM. RADICAL (Alliance A031801; ClinicalTrials.gov identifier: NCT04071223 ) evaluated cabozantinib ± radium-223 in mRCC with BM. METHODS This phase II trial enrolled patients with mRCC of any histology with ≥1 BM. Patients were randomly assigned 1:1 to cabozantinib ± radium-223, stratified by osteoclast-targeted therapy (OTT), prior therapy, opioid use, and International mRCC Database Consortium (IMDC) risk. The primary end point was SSE-free survival (SSE-FS). Secondary end points included safety, objective response rate (ORR), progression-free survival, and overall survival (OS). A target of 124 evaluable patients was planned, with a prespecified interim futility analysis at 50% of expected SSE-FS events; the trial would stop if the stratified hazard ratio (sHR) > 1.0. RESULTS The prespecified interim futility analysis was conducted after 90 patients were enrolled and crossed the futility boundary, leading to closure at 98 patients. The final analysis included all 98 patients. Median age was 63 years, 82.7% had clear cell histology, and 79.6% were using an OTT. IMDC risk was favorable (18.4%), intermediate (67.3%), and poor (14.3%). Median follow-up was 13.1 months. Median SSE-FS for cabozantinib with radium-223 versus cabozantinib was 16.7 versus 17.6 months (sHR, 1.46 [90% CI, 0.86 to 2.51]). Median OS was 28.3 versus 19.7 months (sHR, 1.40 [95% CI, 0.70 to 2.79]). ORR was 19.4% versus 25.0% ( P = .78). Grade ≥3 adverse events were similar across arms (69.6% v 75.5%). CONCLUSION Radium-223 did not improve SSE-FS when added to cabozantinib. The combination demonstrated a manageable safety profile.
Breast Cancer, Version 4.2026, NCCN Clinical Practice Guidelines In Oncology
Gradishar, W J, Moran, Meena S. , Abraham, Jame , Abramson, Vandana, Aft, Rebecca, Agnese, Doreen, Allison, Kimberly H., Anderson, Bethany, Bailey, Janet, Burstein, Harold J. , Chen, Nan , Chew, Helen, Dang, Chau, Giordano, Sharon H., Goetz, Matthew P., Jankowitz, Rachel C., Javid, Sara H., Leitch, A. Marilyn, LYONS, JANICE, McCloskey, Susie, McShane, Melissa , Patel, Sameer A. , Rosenberger, Laura H., Santa‐Maria, Cesar A. , Schneider, Bryan P., Smith, Mary Lou , Soliman, Hatem, Speers, Corey, Telli, Melinda L. , Wei, Mei , Wisinski, Kari B., Yellala, Amulya, Schonfeld, Ryan, Telli, Melinda L , Gradishar, William John, Abramson, Vandana G. , Agnese, Doreen Marie , Allison, Kimberly H. , Bailey, Janet E., Chew, Helen K. , Elias, Anthony , Giordano, Sharon H. , Goetz, Matthew P. , Jankowitz, Rachel C. , Javid, Sara H. , Leitch, A. Marilyn , Rosenberger, Laura H. , Rugo, Hope S. , Santa-Maria, Cesar Augusto , Schneider, Bryan P. , Soliman, Hatem, Speers, Corey , Wisinski, Kari B. , Yeung, Kay T. , Young, Jessica S. , Kumar, Rashmi

Journal of the National Comprehensive Cancer Network | July 9, 2026 | Volume: 24 | Issue: 7 | Pages: No page available

10.6004/jnccn.2026.0033 | PMID 42425164 Get It

The NCCN Clinical Practice Guidelines for Breast Cancer include recommendations for clinical management of patients with carcinoma in situ, invasive breast cancer, Paget’s disease, Phyllodes tumor, inflammatory breast cancer, and management of breast cancer during pregnancy. The panel convenes annually to update recommendations based on a review of recently published clinical trials. This selection from the NCCN Guidelines for Breast Cancer focuses on the recommendations for the management of recurrent or stage IV (M1) metastatic breast cancer. It summarizes the treatment strategies stratified by tumor biology, including hormone receptor status and HER2 expression, as well as clinical factors such as prior therapy and disease-free interval. Throughout all treatment lines, supportive care, quality of life preservation, toxicity minimization, and clinical trial participation are emphasized as integral components of patient care.
Real-World Outcomes with BCMA- and GPRC5D-Targeting Bispecific Antibodies in Plasma Cell Leukemia
Gaballa, Mahmoud R. , Julian, Kelley , Afrough, Aimaz , Hansen, Doris K. , Goel, Utkarsh , Corraes, Andre De Menezes Silva, Dima, Danai , Rana, Masooma , Hosoya, Hitomi , Mikkilineni, Lekha , Fogel, Lindsay , Raza, Shahzad, Zanwar, Saurabh , Sannareddy, Aishwarya, Borogovac, Azra , Green, Kimberly M , Biran, Noa, Shune, Leyla, Ouchveridze, Evguenia, DeJarnette, Shaun, Ferreri, Christopher J, Richards, Tiffany, Bal, Susan , Ye, Jing Christine, Shain, Kenneth H. , Harada, Ken , Avila, Gabriel De, Voorhees, Peter, Khouri, Jack , Sidana, Surbhi , Lin, Yi, Patel, Krina K. , Sborov, Douglas W. , Gaballa, Mahmoud , De Menezes Silva Corraes, Andre , Banerjee, Rahul , Zanwar, Saurabh S , Borogovac, Azra , Davis, James A , Green, Kimberly , Zolotov, Eli , Herr, Megan M. , Abid, Muhammad Bilal , Bal, Susan , Ali, Hossam M , Kaur, Gurbakhash , Shain, Kenneth H , Castaneda Puglianini, Omar , Hassan, Hamza , Anderson, Larry D , Khouri, Jack , Sidana, Surbhi , Portuguese, Andrew J , Janakiram, Murali , Lee, Hans C , Patel, Krina , Sborov, Douglas W , Dima, Danai , Hosoya, Hitomi , Rana, Masooma S , Julian, Kelley L , Hansen, Doris K , Corraes, Andre De Menezes Silva , Raza, Shahzad , Banerjee, Rahul , Pasvolsky, Oren , Sannareddy, Aishwarya , Davis, James A. , Biran, Noa , Zolotov, Eli , Shune, Leyla , Atrash, Shebli , Ferreri, Christopher J. , Richards, Tiffany, Abid, Muhammad Bilal , Ali, Hossam M. , Ye, Jing Christine, Richard, Shambavi , Kaur, Gurbakhash , Puglianini, Omar Castañeda , Rossi, Adriana , Hassan, Hamza , Anderson, Larry D. , Voorhees, Peter M. , Portuguese, Andrew J. , Janakiram, Murali , Lee, Hans C. , Grajales‐Cruz, Ariel

Blood Advances | July 2, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1182/bloodadvances.2026020826 | PMID 42392158 Get It

Patients with plasma cell leukemia (PCL) are generally excluded from pivotal T-cell redirecting bispecific antibody (BsAb) trials. We evaluated real-world outcomes in a multicenter retrospective study of 122 patients with primary or secondary PCL across 15 academic centers, categorized as 'active' (≥5% circulating plasma cells within 30 days of BsAb initiation) or 'historical'. In a heavily pretreated population, patients received teclistamab (37%), elranatamab (11%), talquetamab as a line of therapy (Tal LOT, 42%), or talquetamab as bridging therapy to CAR-T (Tal Bridge, 11%). Cytokine release syndrome (CRS) was grade 1-2 in 56% and grade 3-4 in 4%, whereas neurotoxicity was grade 1-2 in 16% and grade 3-4 in 5%. Among 110 evaluable patients, the overall response rate (ORR) was 55%, including 61% with Tal LOT, 58% with Tal Bridge, 46% with elranatamab, and 33% with teclistamab. With a median follow-up of 8.3 months, talquetamab demonstrated superior survival. Tal LOT showed a median progression-free survival (mPFS) of 5.5 months and a median overall survival (mOS) of 11.5 months, and both were unreached in the Tal Bridge cohort. In contrast, teclistamab and elranatamab showed a mPFS of 1.2 and 1.6 months and mOS of 8.1 and 3.6 months, respectively (P=0.007, P=0.023). In active PCL, Tal LOT achieved mPFS/mOS of 6.9/12.2 months versus 0.7/1.4 months with teclistamab and 1.0/3.1 months with elranatamab, respectively (P<0.001, P=0.002). Multivariable analysis associated active PCL with worse survival and Tal LOT with improved outcomes. BsAbs were safe in PCL, with talquetamab showing superior outcomes compared with BCMA-directed BsAbs.
Idecabtagene vicleucel and endogenous T‐cell phenotypes linked to progression‐free survival in relapsed multiple myeloma
Paiva, Bruno , Manrique, Irene , Thompson, Ethan, CAMPBELL, TIMOTHY B., Guerrero, Camila, Martin, Nathan, Anderson, Larry D. , Lonial, Sagar, Raje, Noopur S., Lin, Yi, Moreau, Philippe, San-Miguel, Jesus, Munshi, Nikhil C., Kaiser, Shari, Paiva, Bruno , Anderson, Larry D , Thompson, Ethan G., Berdeja, Jesús G. , Lonial, Sagar , Moreau, Philippe , San-Miguel, Jesus , Munshi, Nikhil C.

HemaSphere | July 2, 2026 | Volume: 10 | Issue: 7 | Pages: No page available

10.1002/hem3.70423 | PMID 42396130 Get It

Abstract Improved understanding of how chimeric antigen receptor (CAR) and endogenous T‐cell phenotypes associate with progression‐free survival (PFS) is needed to individualize and improve immunotherapy outcomes in multiple myeloma (MM). We characterized and investigated the prognostic value of immune dynamics defined with multidimensional and computational flow cytometry in 258 bone marrow aspirates from 107 MM patients treated with idecabtagene vicleucel in the KarMMa trial. At screening, there was an association between longer PFS and increased percentages of PD1 + cytotoxic T cells and ICOS − TIGIT + Tregs. At Month 1 after infusion, the presence of >1% CAR‐T cells, a CD4/CD8 CAR‐T‐cell ratio >0.09, and greater abundance of non‐activated non‐cytolytic CAR‐T cells identified patients with longer PFS. Notably, 47 of the 115 endogenous T‐cell clusters were prognostic at the latest assessment performed after CAR‐T infusion. Lower percentages of ICOS + TIGIT − Tregs showed the strongest association with longer PFS. Altogether, this large dataset of dynamic immune profiling throughout treatment with anti‐B‐cell maturation antigen (anti‐BCMA) CAR‐T cells uncovered that the T‐cell composition prior to apheresis as well as CAR‐T and endogenous T‐cell phenotypes after infusion associates with PFS. These findings have potential for translation into routine laboratory practice for improved understanding of response and resistance to CAR‐T cells in relapsed/refractory MM.
Bone-Modifying Agents in Metastatic Castration-Resistant Prostate Cancer
Gebrael, Georges, Ostrowski, Micah , Li, Haoran, Roy, Soumyajit, Maughan, Benjamin L, Guha, A, Antonarakis, Emmanuel S., McKay, Rana R., Agarwal, Neeraj, Swami, Umang , Guha, Avirup , Riaz, Irbaz Bin , Guha, Avirup , Özay, Zeynep İrem , Jo, Yeonjung , Gebrael, Georges , Thomas, Vinay Mathew , Li, H. Harold , Graf, Ryon P. , Roy, Soumyajit, Maughan, Benjamin L. , Antonarakis, Emmanuel S. , McKay, Rana R. , Agarwal, Neeraj

JAMA Network Open | June 24, 2026 | Volume: 9 | Issue: 6 | Pages: e2620084

10.1001/jamanetworkopen.2026.20084 | PMID 42340725 Get It

This cohort study examines patterns of bone-modifying agent use from 2013 to 2024 among men with metastatic castration-resistant prostate cancer.
Radiology: Cardiothoracic Imaging Highlights 2025
Sanchez, Daniel Alfonso Pinos , Farias, Lucas de Pádua Gomes de , Onnis, Carlotta , Escalon, Joanna G. , Hanneman, Kate , Litt, Harold , Gulsin, Gaurav S. , Pinos, Daniel , Gomes de Farias, Lucas de Pádua , Suchá, Dominika , Escalon, Joanna G , Hanneman, Kate , Abbara, Suhny , Litt, Harold I , Gulsin, Gaurav S , Suchá, Dominika , Mastrodicasa, Domenico

Radiology: Cardiothoracic Imaging | June 11, 2026 | Volume: 8 | Issue: 3 | Pages: No page available

10.1148/ryct.260065 | PMID 42274320 Get It

Articles published in Radiology: Cardiothoracic Imaging in 2025 highlight advances in cardiothoracic imaging through technical innovation, quantitative biomarkers, and artificial intelligence applications that support improved diagnosis, risk stratification, and patient-centered management across cardiac, vascular, and thoracic disease.
Adjuvant Nivolumab vs Observation in Resected Non–Small Cell Lung Cancer
Sun, Zhuoxin, Rudin, Charles M., Khullar, Onkar V., Simone, Charles B., Oettel, Kurt, Kozono, David, Sunkara, Rajitha, Faller, Bryan, Hugec, Vladimir, Shipstone, Asheesh, McGary, Eric C., Clarke, Jeffrey M., Talsania, Ashita, Ding, Li, Heymach, J, Raez, Luis E., Malik, Shakun , Stinchcombe, T., Mandrekar, Sumithra J. , Bradley, J.D., Vokes, E., Gandara, David, Staley, Charles, Ramalingam, Suresh S., Chaft, Jamie E. , Sun, Zhuoxin, Rudin, Charles M. , Khullar, Onkar V. , Simone, Charles B. , Oettel, Kurt R., Kozono, David , Sunkara, Rajitha, Faller, Bryan A. , Isbell, James M. , Clarke, Jeffrey M., Govindan, Ramaswamy , Sands, Jacob , Heymach, John V. , Raez, Luis , Stinchcombe, Thomas E. , Gerber, David E. , Gandara, David R. , Ramalingam, Suresh S.

JAMA | June 1, 2026 | Volume: 336 | Issue: 6 | Pages: 464

10.1001/jama.2026.8992 | PMID 42224490 Get It

Importance Preoperative and perioperative nivolumab improve event-free survival in resectable non–small cell lung cancer. The role of adjuvant nivolumab after upfront surgery is unknown. Objective To determine whether adjuvant nivolumab improves disease-free survival and overall survival in patients with resected non–small cell lung cancer with any tumor programmed death-ligand 1 (PD-L1) expression and in those with at least 50% PD-L1 expression. Design, Setting, and Participants This open-label, randomized phase 3 study enrolled participants from May 2016 through September 2019, with median follow-up of 72.6 months at the data cutoff in December 2025. The study was conducted at 378 centers in the US National Clinical Trials Network. Patients were identified through a screening trial. Those with resected tumors at least 4 cm and/or who were lymph node positive (N1/N2) were eligible for inclusion after completion of planned standard adjuvant therapy if the tumor was adenocarcinoma without sensitizing sequence variants in EGFR and ALK or squamous cell carcinoma. Intervention Patients were randomized in a 1:1 ratio to receive nivolumab 480 mg intravenously every 4 weeks for up to 1 year or standard care observation. Main Outcomes and Measures Co–primary end points were disease-free survival in the intention-to-treat population and in those with tumoral PD-L1 expression at least 50%. Overall survival was examined if the corresponding test of disease-free survival was statistically significant. Results A total of 466 patients (median age, 66 years; 241 [52%] male) were assigned to receive nivolumab and 469 (median age, 67 years; 245 [52%] male) to undergo standard care observation. The median duration of follow-up was 72.6 months. The trial was stopped for futility at 75% information. In the intention-to-treat population, median disease-free survival was 71.3 months with nivolumab and 68.8 months with observation (hazard ratio for progression or death, 0.97 [97% CI, 0.79-1.20]; [95% CI, 0.81-1.17]; 1-sided P = .39). In the subset of participants with PD-L1 of at least 50%, median disease-free survival was 89.8 months with nivolumab and 78.5 months with observation (hazard ratio for progression or death, 0.86 [98% CI, 0.55-1.34]; [95% CI, 0.59-1.25]; 1-sided P = .22). Conclusions and Relevance Adjuvant nivolumab was not associated with improved disease-free survival in patients with resected non–small cell lung cancer without sensitizing EGFR and ALK alterations when given after planned adjuvant chemotherapy and/or radiotherapy. Trial Registration Clinicaltrials.gov Identifier: NCT02595944
Age-specific early-life gut microbiome associations with eczema and food allergies during early immune development
Núñez, Harold, Straub, Timothy J. , Imam, Nabeel, Goad, David, Mueller, Noel T., Hoy, Cheryl Sew, Paullin, Trillitye, Sukhum, Kimberley V., Mars, Ruben A T, Goad, David, Mars, Ruben A. , Paullin, Trillitye R. , Sukhum, Kimberley V.

Frontiers in Microbiomes | May 29, 2026 | Volume: 5 | Issue: No issue available | Pages: No page available

10.3389/frmbi.2026.1804117 | PMID 42293161 Get It

Introduction Eczema and food allergy commonly emerge during infancy and are linked to changes in the gut microbiome, yet it remains unclear when microbiome differences associated with allergic disease first appear during development. Methods We analyzed age-stratified shotgun metagenomic data from 97 children aged 4–36 months, including physician-confirmed cases of eczema or food allergy and non-allergic controls, excluding recent antibiotic or probiotic exposure. Microbial taxa, functional pathways, and composite microbiome metrics were evaluated across three developmental stages: early infancy (4–6 months), mid-infancy (6–12 months), and toddlerhood (12–36 months). Results Differences between allergic and non-allergic children were minimal before 6 months of age but became more apparent during mid-infancy and persisted into toddlerhood. Allergic conditions were associated with reduced abundance of fiber-fermenting and butyrate-producing taxa, enrichment of facultative and inflammation-associated microbes, lower microbiome maturation scores, and shifts in metabolic and inflammatory functional capacity. Discussion These findings suggest that gut microbiome divergence associated with allergic disease becomes more apparent during mid-infancy, highlighting a developmentally relevant period for understanding early immune disruption. The results support further longitudinal and interventional studies aimed at clarifying whether earlier microbiome-targeted strategies may help modify progression along the atopic march.