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346 citation(s) found for "Hyun, MC".

Metabolic reprogramming of pathogenic CD4 + T helper cells attenuates inflammatory bowel disease in mice
Mishra, Shravan K , Abdelrahman, Leena M , Kim Lee, Hyun Se , Valenzuela-Pérez, Lucía , Manna, Dina Faeq , Abram, Tanner J , Ali, Lama Mohamed , Davidson, Heidi M , Hassan, Omar M , Faubion, William A. , Hirsova, Petra , Bamidele, Adebowale O

Science Signaling | October 6, 2026 | Volume: 19 | Issue: 958 | Pages: No page available

10.1126/scisignal.aeb2392 | PMID 42837442 Get It

CD4 + effector T helper 1 (T H 1) cells drive inflammatory bowel disease (IBD). Here, we investigated how integrated signaling, metabolic, and epigenetic programs sustain their pathogenic persistence. We found that enforcing mitochondrial pyruvate metabolism with methyl pyruvate (MePyr) suppressed T H 1 cell effector function and induced the acquisition of a regulatory-like phenotype. MePyr suppressed the activity of glycogen synthase kinase 3β (GSK3β), promoting a metabolic shift from glycolysis toward oxidative phosphorylation (OXPHOS) and limiting the accumulation of intracellular acetyl-CoA. This metabolic reprogramming decreased histone H3 acetylation at genes encoding inflammatory cytokines, thereby decreasing T H 1 cell–associated gene expression. Restoration of inflammatory cytokine production by acetate supplementation or histone deacetylase inhibition established acetyl-CoA–dependent histone acetylation as a mechanistic link between metabolic flux and effector function. Conversely, the cytokine interleukin-21 enhanced T H 1 cell effector activity by promoting a GSK3β-dependent shift from OXPHOS to glycolysis. Single-cell transcriptomic analysis of Crohn’s disease tissue revealed enrichment of glycolytic gene programs in nonregulatory CD4 + T cells. Consistent with these findings, pharmacologic inhibition of GSK3β attenuated disease severity in a T cell–transfer mouse model of colitis. Together, these findings identify a GSK3β-dependent metabolic-epigenetic axis that sustains T H 1 cell pathogenicity and highlight GSK3β as a potential therapeutic target for IBD.
One-Stage Versus Staged Palatal Repair in Unilateral Cleft Lip and Palate: Longitudinal Maxillofacial Growth, Speech, and Postoperative Outcomes
Tunaboylu, Mehmet Furkan , Baas, Becky S. , Gibreel, Waleed , Ahn, Ji Hyun

The Cleft Palate Craniofacial Journal | September 29, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1177/10556656261492401 | PMID 42808504 Get It

Objective This study aimed to compare longitudinal cephalometric growth, speech outcomes, and secondary surgeries after 1-stage versus 2-stage palatoplasty in patients with non-syndromic unilateral cleft lip and palate (UCLP). Design Retrospective single-institution cohort study. Setting Tertiary academic craniofacial center. Patients/Participants Sixty-eight patients with non-syndromic UCLP treated between 1992 and 2015 who underwent primary palatal repair and had long-term clinical and radiographic follow-up. Forty-eight underwent 1-stage palatoplasty, and 20 underwent 2-stage palatoplasty. Interventions One-stage palatoplasty versus staged palatoplasty with initial soft palate repair followed by delayed hard palate closure. Main Outcome Measures Longitudinal cephalometric measurements at approximately 10 and 16 years, speech outcomes at 5, 10, 13, and 16 years, oronasal fistula, velopharyngeal insufficiency surgery, and need for continued speech follow-up after age 10. Results Mean follow-up was 15.2 ± 4.4 years. Linear fixed-effects modeling showed significant age-related worsening in sagittal skeletal relationships in both groups, including decreases in sella-nasion-A point angle (SNA), A point-nasion-B point angle (ANB), and Wits appraisal, without significant effects of palatoplasty strategy or age-by-strategy interaction for key sagittal outcomes. Speech outcomes were comparable between groups across all timepoints, including hypernasality, nasal emission, compensatory articulation, intelligibility, and Cleft Audit Protocol for Speech-Augmented (CAPS-A) scores. Rates of secondary velopharyngeal surgery and continued speech follow-up after age 10 did not differ significantly. Oronasal fistula occurred more frequently after 2-stage palatoplasty than 1-stage palatoplasty (30% vs 9%, P = .02). Conclusion One-stage and 2-stage palatoplasty demonstrated similar long-term growth and speech outcomes through adolescence. Two-stage repair was associated with a higher oronasal fistula rate but not greater secondary velopharyngeal or speech burden.
Single-electrode simultaneous detection of tonic dopamine and serotonin in vivo using an interleaved cyclic square wave voltammetry approach
Cho, Hyun-U., Hwang, Sangmun, Kwak, Youngjong , Kwon, Haeun , Jang, Jaehyun , Shin, Hojin, Lee, Kendall H., Jang, Dong Pyo, Kim, Kyung Min , Oh, Yoonbae , Lee, Kendall H., Jang, Dong Pyo

Analytical Methods | July 30, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1039/d6ay00711b | PMID 42528485 Get It

We report an innovative interleaved voltammetric strategy to simultaneously quantify tonic levels of dopamine and serotonin in vivo using a single unmodified microelectrode, advancing our capability to monitor complex neurochemical interactions.
Abstract Fri086: CD38 NADase Suppresses Sulfite Oxidase (SUOX) and Activates Reverse Complex V to Promote Metabolic Remodeling in Endothelial Cells (ECs) Under Disturbed Flow
Ko, Kyung Ae , Samanthapudi, Venkata Subrahman K, Hoang, Oanh, Mejia, Gilbert F. , Rivera, Luis Antonio, KIM, JUNG HYUN, Ostos-Mendoza, Kelia, Deswal, Anita, Pathania, Rajneesh , Morrell, Craig, Chini, Eduardo N. , Martin, James, Hamilton, Dale, Seeley, Erin, Burks, Jared, Brookes, Paul, LE, NHAT TU, Abe, Junichi, Kotla, Sivareddy , Lee, Jonghae , Chen, Weiqing , Hoang, O.N. , Zhang, Aijun , Imanishi, Masaki , Mendoza, Keila Carolina Ostos , Morrell, Craig , Shen, Ying , Hamilton, Dale J. , Burks, Jared K , Wang, Guangyu

Arteriosclerosis, Thrombosis, and Vascular Biology | July 28, 2026 | Volume: 46 | Issue: Suppl_1 | Pages: No page available

10.1161/atvb.46.suppl_1.fri086 Get It

Introduction: Atherosclerotic lesions preferentially form in arterial regions exposed to disturbed flow (DF), where ECs exhibit mitochondrial (mt) dysfunction, metabolic reprogramming, and senescence. Hippo pathway kinases LATS1/2 maintain EC homeostasis, but how DF–mediated LATS1/2 suppression drives EC metabolic remodeling remains unclear. Hypothesis: We propose that DF activates CD38, leading to mt dysfunction and metabolic reprogramming that promotes EC senescence and aberrant proliferation by LATS1/2 inhibition. Methods: EC-specific Lats1/2 knockout mice were generated using tamoxifen-inducible Cre systems, and DF was induced by partial carotid ligation. Murine and human plaques were analyzed using COMET™ immunofluorescence, and spatial metabolomics. Bioenergetic profiling included Seahorse XF analysis, 13 C-glucose/ 13 C-glutamine tracing, and pharmacologic modulation of CD38, mtROS, and ATP synthase. Results: Complete Lats1/2 deletion caused fatal edema and vascular leakage, while partial loss produced fragile, highly neovascularized plaques. Spatial proteomics revealed a CD38-driven senescence-associated stemness (SAS) phenotype under LATS1/2 deficiency. Metabolomics showed sulfite and taurine accumulation, consistent with SUOX deficiency. Mechanistically, CD38 suppressed SUOX, induced Complex V reverse-mode , increased succinate flux, and accelerated ATP consumption. Despite ATP depletion, glutamate metabolism and TCA cycle flux were enhanced, sustaining EC proliferation under energetic stress. LATS1/2 knockdown reduced mt respiratory capacity (lower OCR peak) without significantly increasing glycolysis, and DF suppressed both OCR and ECAR, indicating impaired energy metabolism under pathological shear stress. CD38 inhibition restored mt respiration and glycolytic capacity by preserving NAD, and rescuing LATS1/2 and DF-mediated defects. Blocking reverse-mode Complex V reduced DF- and LATS1/2-dependent EC senescence and proliferation. Conclusion: Complete LATS1/2 deletion causes fatal vascular leakage, while partial loss drives plaque formation with fragile neovessels through a CD38-dependent SAS phenotype. CD38 suppresses SUOX, induces Complex V reverse-mode , increases succinate flux, and accelerates ATP consumption, enabling EC proliferation despite energy stress. DF and LATS1/2 loss impair mt and glycolytic function, whereas CD38 inhibition restores mt respiration and reduces EC senescence and proliferation to prevent atherothrombosis in DF regions.
Clinical Recommendations for Remote Robotic Assisted Surgery From the CRSA 2025 International Consensus Conference
Raptis, Dimitri Aristotle , Kavoussi, Louis, Wren, Sherry M. , Fowler, Dennis, Anvari, Mehran, Bianco, Francesco, Liang, Xiao, Li, Zheyong, Yin, Xiaoyu, Piccoli, Micaela, Marks, John, Shen, Baiyong, Ko, Clifford, Seeliger, Barbara, Hagendoorn, Jeroen, Essani, Rahila, Walsh, R. Matthew, Oleynikov, Dmitry, Jones, Stephanie B., Bindal, Vivek , Kim, Hyun Koo, Hyung, Woo Jin, Hashimoto, Daniel, Chen, Liaohai Leo, Burt, Bryan M., Lafaro, Kelly, Elli, Fernando, Wilson, Erik, Bianchi, Paolo Pietro, Morgan, Annette, Bartlett, Stephen T., Rashidi, Laila, Yu, Liu, Gawkins, Bill, Hinoul, Piet, Peine, Bill, Woo, Yanghee, Raoof, Mustafa, Jones, Daniel, Deshpande, Supriya, Bernard, Jordana , Wang, Yulun, Broering, Dieter C., Giulianotti, Pier Cristoforo, Fong, Yuman , Raptis, Dimitri , Wren, Sherry M , Aldousari, Saad , Ruurda, Jelle P. H. , Bindal, Vivek , Melstrom, Laleh , Celotto, Francesco , Kudsi, Yusef , Ratti, Francesca , Bernard, Jordana , Kavoussi, Louis R., Fowler, Dennis L. , Anvari, Mehran , Bianco, Francesco Maria , Piccoli, Micaela , Marks, John, Ko, Clifford, Seeliger, Barbara , Hagendoorn, Jeroen , Essani, Rahila, Walsh, R. Matthew , Oleynikov, Dmitry , Hyung, Woo Jin , Hashimoto, Daniel A. , Burt, Bryan M. , Lafaro, Kelly J. , Elli, Fernando, Bianchi, Paolo Pietro, Rashidi, Laila, Hinoul, Piet , Peine, Bill, Woo, Yanghee , Raoof, Mustafa , Jones, Daniel, Deshpande, Supriya , Bröering, Dieter C. , Giulianotti, Pier Cristoforo

World Journal of Surgery | July 14, 2026 | Volume: 50 | Issue: 8 | Pages: 2274-2288

10.1002/wjs.70468 | PMID 42444290 Get It

ABSTRACT Background Implementation of remote robotic‐assisted surgery (rRAS) has the potential to significantly improve access to high‐quality surgical care for patients worldwide. Advances in robotic systems and telecommunications now enable highly reliable, low latency, and cybersecure connectivity. These technological developments, together with the broader adoption of telemedicine, have driven an increasing interest in the implementation of rRAS. Methods The Clinical Robotic Surgery Association (CRSA) convened a conference to develop international clinical recommendations for rRAS using the Danish Model of Consensus. The society identified five key issue categories and invited a panel of experts to address specific questions for each. Panel members and a jury of 10 unbiased, non‐expert in rRAS professionals participated in a day‐long conference on November 19, 2025 (Los Angeles, USA). During the conference, participants presented, discussed, and reached consensus on specific guidelines relevant to each category. Immediately after the conference, the jury reviewed and approved the recommended guidelines. Results Multiple recommendations were approved for each of the following categories: Operating Models, Roles and Responsibilities (2 recommendations), Clinical Pathway (2 recommendations), Emergency Management (8 recommendations), Technical Considerations (5 recommendations), and Medico‐legal and Ethical Considerations (4 recommendations). Conclusions There was consensus that with recent advances in telecommunication and robotic technologies, rRAS can be offered safely and effectively if the identified safeguards are realized. Adoption of rRAS is expected to continue advancing rapidly.
Caring for Transgender and Gender-diverse Parents
Kim, Hyun-Hee, Evangelinos, Eirini, Fonseca, Emrys , Cosner, Chelsea, Kim, Hyun-Hee , Cosner, Chelsea R.

Psychiatric Annals | June 16, 2026 | Volume: 56 | Issue: 6 | Pages: No page available

10.3928/00485713-20260402-01 Get It

Transgender and gender-diverse (TGD) people comprise approximately 0.9% of adults in the United States; among them, 18% to 50% of TGD adults surveyed report being parents. Younger generations of Americans are more likely to identify as TGD, and also more likely to desire children than previous generations of TGD individuals surveyed. Despite this, TGD parents are often underrepresented in literature on parenting experiences of lesbian, gay, bisexual, transgender, and queer (LGBTQ+) parents. TGD parents experience significant mental health, physical health, and socioeconomic disparities due to gender minority stressors, and numerous barriers to reproductive care and affirming mental health care. This article presents an overview of the current literature on TGD parents, psychosocial outcomes for children of TGD parents, common clinical issues that may arise in treatment, and strategies for supporting TGD families to build resilience.
Nuclear Enlargement as a Histological Hallmark of Skeletal Muscle Aging, Revealed by Deep Learning‐Driven Analysis and Validated in Inflammatory Myopathies
Dao, Tam, Nguyen, T. , Hoang, Gia Minh , Park, Junhyeon , Jo, Yunju, Ngoc, Thach Hoang, Pho, Diep Hong, Minh, D Q, Ton, Emma Anh, LEE, S, Dũng, Vũ Chí, Kim, Jae Gwan , Ryu, Dongryeol, Kim, Jae Gwan , Dao, Tam , Jo, Yunju , Diep, Pho Hong , Minh, Dien Tran, Kim, Hyun‐Jin , Ryu, Dongryeol

Aging Cell | June 15, 2026 | Volume: 25 | Issue: 6 | Pages: No page available

10.1111/acel.70577 | PMID 42295036 Get It

ABSTRACT Aging reshapes the architecture of human skeletal muscle, yet objective tissue‐level markers that capture this process remain limited. We combined large‐scale histology with deep learning to identify reproducible features of muscle aging and to test their biological relevance. We analyzed 974 hematoxylin–eosin whole‐slide images from a population resource using a dual‐attention convolutional neural network and an independent Mask R‐CNN model to quantify nuclear size and density, verified by manual review. The classifier distinguished young from aged muscle with high accuracy (AUC 0.91; accuracy 86.2%), and attention maps consistently highlighted nuclear enlargement and spatial disorganization as salient features. Nuclear diameter increased with age (Spearman's ρ = 0.71, p < 0.0001) across automated and manual measurements. Transcriptomes matched to the same donors showed that samples with larger nuclei were enriched for pathways related to chromatin remodeling, proteostasis, cellular senescence, mitochondrial activity, and telomere regulation, whereas smaller nuclei aligned with anti‐inflammatory and DNA repair programs. External pediatric inflammatory myopathies exhibited nuclear enlargement comparable to aged muscle, suggesting inflammation‐related premature histologic aging. These findings identify nuclear enlargement as a robust, quantifiable feature that integrates structural and molecular signatures of muscle aging. The proposed deep learning–based nuclear morphometry provides a scalable framework for tissue‐level aging biomarkers and suggests a potential “muscle aging clock” applicable to both physiological aging and disease states.
Endoscopic Ultrasound Guided Transrectal Drainage of a Nonresolving Multiloculated Rectal Abscess in a Patient With Advanced Anal Squamous Cell Carcinoma
Ingawale, Sushrut , KIM, H, Jue, Terry L., Kim, Hyun Jae

ACG Case Reports Journal | June 12, 2026 | Volume: 13 | Issue: 6 | Pages: No page available

10.14309/crj.0000000000002176 | PMID 42292934 Get It

Diagnostic Yield of Cardiac CT to Detect Cardiac Thrombi in Patients With Acute Ischemic Stroke (AIS of HEARTS)
Nio, Shan Sui , Green, Daniel S. , Berry-Noronha, Alexander , Rinkel, Leon A. , Beemsterboer, Chiel F.P. , Hasnain, Md Golam , Planken, R. Nils , Randen, Adriënne van , Al-Hadethi, Sinan , Hilt, Mirre G.M. , Ruhe, Deborah S.A., Boekholdt, S Matthijs, Chew, Beng Lim Alvin , Fridgant, Joshua, Mena-Romo, Luis , Kim, Dong Hyun, Guo, Shuyu, Winders, Joel, Senadeera, Sajith C. , Lim, Anthony , Fink, John, Leung, Melissa , Cordato, Dennis, Spratt, N., Collaborators, on behalf of the AIS of HEARTS, Green, Daniel S , van Randen, Adrienne , Bouma, Berto J , Boekholdt, S Matthijs , Fridgant, Joshua , Mena-Romo, Luis , Alamri, Yassar , Lim, Anthony T , Leung, Melissa , Cordato, Dennis , Parsons, Mark W , Spratt, Neil J , Garcia-Esperon, Carlos , Wu, Teddy Y , Coutinho, Jonathan M , Beemsterboer, Chiel F P , Planken, R Nils , Berry‐Noronha, Alexander , Hasnain, Md Golam , Hilt, Mirre , Ruhe, Deborah, Bouma, Berto J. , Boekholdt, S. Matthijs , Kim, Dong Hyun, Fink, John

Stroke | June 2, 2026 | Volume: 57 | Issue: 8 | Pages: 2408-2416

10.1161/strokeaha.126.055575 | PMID 42227105 Get It

BACKGROUND: Cardiac computed tomography (CT) acquired during the acute stroke imaging protocol is an emerging modality to detect cardiac thrombi. We determined its yield in patients with acute ischemic stroke. METHODS: We performed a 1-stage individual patient data meta-analysis of 4 prospective observational cohorts (AIS of HEARTS [Acute Ischemic Stroke of Heart-Related Embolic Sources Detected on Acute Cardiac CT Scans]), including patients with acute ischemic stroke who underwent ECG-gated or non–ECG-gated cardiac CT between May 2018 and June 2024. We excluded patients with transient ischemic attack or stroke mimics. The primary outcome was the proportion of patients with a thrombus on cardiac CT. Secondary outcomes were additional scan time, radiation dose, comparison with echocardiography, and 90-day outcomes. We performed logistic regression analyses to compare 90-day outcomes between patients with and without thrombus, adjusting for age, sex, history of atrial fibrillation, ischemic heart disease, chronic heart failure, stroke or transient ischemic attack, anticoagulant use, prestroke modified Rankin Scale score, National Institutes of Health Stroke Scale score, large vessel occlusions, and intravenous thrombolysis, as appropriate for each outcome. RESULTS: We included 3919 patients (median age, 74 [interquartile range (IQR), 63–82], 58% male, median National Institutes of Health Stroke Scale score 6 [IQR, 3–12]). Cardiac CT detected a thrombus in 243 (6.2%) patients. Among 1323 patients that underwent both cardiac CT and transthoracic echocardiography, cardiac CT had a higher yield than transthoracic echocardiography (odds ratio, 7.4 [95% CI, 4.0–15.1]; P <0.001). Median additional scan time was 6 minutes (IQR, 5–7) for ECG-gated and 13 seconds (IQR, 12–61) for non–ECG-gated cardiac CT. Median additional radiation dose was 2.9 mSv (IQR, 1.6–4.1). Patients with thrombi had higher 90-day mortality (33% versus 15%, adjusted odds ratio, 1.6 [95% CI, 1.1–2.3]) and worse modified Rankin Scale scores (median modified Rankin Scale score 3 versus 2, adjusted odds ratio, 1.6 [95% CI, 1.2–2.0]), but similar recurrent stroke rates (5% versus 4%, adjusted odds ratio, 1.4 [95% CI, 0.7–2.5]). CONCLUSIONS: Implementing cardiac CT into the acute stroke imaging protocol is feasible, detects thrombi in ≈6% of patients, and has a higher yield than transthoracic echocardiography. Cardiac thrombi were associated with higher mortality, but not higher stroke recurrence. REGISTRATION: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT07165093.
Colchicine Directly Targets Aldehyde Dehydrogenase 2 (ALDH2) to Suppress Radiation-Induced Senescence and Atherosclerosis
Abe, Jun‐ichi , Samanthapudi, Venkata Subrahman K, Chen, Weiqing , Tra, Ngoc Tuyet , Mejia, Gilbert F. , Hoang, Oanh, Rivera, Luis Antonio, Chu, Kun Yuan, Osawa, Masaki, Kim, J, Ko, Kyung Ae , Reddy, Anilkumar K. , Moreno, Silvia Fernanda López, Lenz, S., Mendoza, Keila Carolina Ostos , Sanchez, Edgardo, Herrmann, Joerg , Schadler, Keri , Manisty, Charlotte, Yusuf, Syed Wamique , Pathania, Rajneesh , Nead, Kevin T. , Hildebrandt, Michelle, Fuller, C David, Lin, Steve H., Le, Nhat‐Tu , Manisty, Charlotte , Hoang, O.N. , Kim, Jung Hyun , Hoang, Oanh , Abe, Jun-Ichi , Chen, Weiqing , Rivera, Luis Antonio , Kim, Jung Hyun , Lee, Jonghae , Li, Shengyu , Lenz, Stefania Assunto , Herrmann, Joerg , Schadler, Keri , Yvan-Charvet, Laurent , Ameri, Pietro , Yusuf, Syed Wamique , Burks, Jared K , Palaskas, Nicolas L , Fuller, Clifton D. , Koutroumpakis, Efstratios , Krishnan, Sunil , Wang, Guangyu , Kotla, Sivareddy

No container title available | May 30, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.64898/2026.05.25.726409 Get It

Abstract Background Ionizing radiation (IR) accelerates atherosclerosis through induction of cellular senescence, DNA damage, defective efferocytosis, and dysregulation of clonal hematopoiesis (CH) drivers. Although low-dose colchicine reduces ischemic cardiovascular events in coronary artery disease, the precise molecular mechanisms underlying its vasculoprotective effects remain incompletely defined, and whether it mitigates radiation-associated vascular injury is unknown. Methods Bone marrow–derived macrophages (BMDMs) were pretreated with low-dose colchicine and exposed to 2 Gy IR. Molecular effects were assessed by RNA-seq, immunoblotting, and molecular docking. In vivo effects were tested in a partial carotid ligation (PLCL) model using spatial proteomics. Human monocyte-derived macrophages (HMDMs) from thoracic malignancy patients were analyzed before and after radiation therapy (RT). Results Low-dose colchicine suppressed IR-induced macrophage senescence signaling while preserving NRF2 activity. In a cell-free assay, colchicine directly activated aldehyde dehydrogenase 2 (ALDH2) in a dose-dependent manner (EC 50 1–5 nM), identifying ALDH2 as a direct molecular target of colchicine. Following irradiation, colchicine restored ALDH2, reduced mitochondrial (mt)ROS - dependent p90 ribosomal S6 kinase ( p90RSK ) activation and lipid peroxidation, preserved TET2 and DNMT3A expression, and rescued impaired efferocytosis while preventing nicotinamide adenine dinucleotide (NAD⁺) and adenosine triphosphate (ATP) depletion. These protective effects were ALDH2-dependent, as they were lost with ALDH2 inhibition or depletion and were mimicked by pharmacologic ALDH2 activation. In vivo, colchicine attenuated radiation-induced atherosclerosis and macrophage senescence-associated stemness (SAS). Consistently, macrophages from patients after RT showed reduced ALDH2 with increased mtROS, lipid peroxidation, and senescence. Conclusion These findings identify ALDH2 as a previously unrecognized molecular target of colchicine that links mitochondrial redox control to suppression of radiation-induced macrophage senescence and atherosclerosis and may contribute to the efficacy of low-dose colchicine in cardiovascular disease.