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10 pages, 4008 KB  
Case Report
A Rare Case Reveals Important Consideration of the Diagnosis of Giant Cell Arteritis in Patients with Bilateral Painful Optic Perineuritis
by Jordan Santos, Faraz Behzadi, S. Mozammil Alam, Thomas C. Varkey, David C. Maeng, Ghassan J. Ibrahim, Trent H. Smith and Alan Wang
Reports 2026, 9(2), 187; https://doi.org/10.3390/reports9020187 (registering DOI) - 15 Jun 2026
Abstract
Background and Clinical Significance: Giant cell arteritis (GCA) is an autoimmune vasculitis of both medium and large-sized vessels typically affecting females 50 years of age or older. Severe complications can include permanent visual loss, acute coronary syndrome, or stroke. This case will present [...] Read more.
Background and Clinical Significance: Giant cell arteritis (GCA) is an autoimmune vasculitis of both medium and large-sized vessels typically affecting females 50 years of age or older. Severe complications can include permanent visual loss, acute coronary syndrome, or stroke. This case will present an atypical presentation of bilateral OPN which can be a rare manifestation of GCA; Case Report: Our patient developed acute, painful worsening central vision loss progressing from right eye to left with bilateral extraocular motility restriction and magnetic resonance image (MRI) revealed bilateral, circumferential optic nerve sheath enhancement suggesting optic perineuritis (OPN). Temporal artery biopsy confirmed GCA with bilateral temporal arteritis. The patient was treated with a high dose course of corticosteroids followed by a taper and was started on upadacitinib with symptomatic improvement; Conclusions: This case underscores OPN as a rarer manifestation of giant cell arteritis that can present with bilateral painful eye movements and vision loss. Early recognition and prompt corticosteroid therapy are essential to prevent irreversible visual impairment. Full article
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28 pages, 892 KB  
Review
Pharmacotherapeutic Interventions for Sensorineural Hearing Loss: A Scoping Review
by Matthew Mavandi, Jack Hyler, Eric Lee, Ramanjot Singh, De Wet Swanepoel, Ashley M. Nassiri and Vinaya Manchaiah
Audiol. Res. 2026, 16(3), 91; https://doi.org/10.3390/audiolres16030091 (registering DOI) - 14 Jun 2026
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Abstract
Background/Objectives: Sensorineural hearing loss (SNHL) is a chronic condition with no established pharmacological treatment. Recent advances in drug-based therapies offer promising opportunities to prevent or treat SNHL. This scoping review summarizes the current landscape of pharmacotherapeutics for SNHL. Methods: This scoping review was [...] Read more.
Background/Objectives: Sensorineural hearing loss (SNHL) is a chronic condition with no established pharmacological treatment. Recent advances in drug-based therapies offer promising opportunities to prevent or treat SNHL. This scoping review summarizes the current landscape of pharmacotherapeutics for SNHL. Methods: This scoping review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR). A literature search of PubMed, Google Scholar, Embase, Scopus, and Web of Science was conducted in 2024 using keywords related to SNHL and pharmacotherapeutics. A review protocol was preregistered on the Open Science Framework. A systematic search of five electronic databases identified published studies from 2004 to 2024 on pharmacological treatments for SNHL in human participants, as well as ongoing clinical trials. Interventions were categorized by mechanism of action: antioxidant therapy, steroid-based combination therapy, hematologic-based therapy, pathway modulator therapy, regenerative therapy, and gene therapy. A narrative synthesis approach was used to map key trends across treatment types, study designs, and outcomes. Results: Sixty-six records met the inclusion criteria, including 48 published studies and 18 ongoing or recently completed clinical trial records. Antioxidants, corticosteroids, hematologic agents, and pathway modulators have demonstrated potential in preventing or treating SNHL caused by cisplatin, aminoglycosides, noise-induced ototoxicity, and intraoperative cochlear implantation trauma. Emerging regenerative and gene therapies show promise as future pharmacologic treatment options. Conclusions: Pharmacologic therapies for SNHL are promising but remain constrained by small sample sizes, heterogeneous study designs, and drug delivery challenges across the blood–labyrinth barrier. Future research should prioritize multicenter randomized trials, optimized delivery strategies, and integration of precision medicine approaches. Full article
29 pages, 4016 KB  
Review
New Therapies for Sarcoidosis: Molecular and Pathophysiological Basis
by Fotios Drakopanagiotakis, Ilias Papanikolaou, Theodoros Panou, Elias Gialafos, Nikolaos Kostakis, Konstantinos Chytopoulos, Anastasios Bogiatzis and Paschalis Steiropoulos
Int. J. Mol. Sci. 2026, 27(12), 5335; https://doi.org/10.3390/ijms27125335 (registering DOI) - 12 Jun 2026
Viewed by 226
Abstract
Sarcoidosis is a multisystem granulomatous disorder of uncertain origin which still presents major therapeutic dilemmas. Longstanding dependence on corticosteroids, while effective for acute inflammation, carries considerable adverse effects over time. Advances in deciphering sarcoidosis pathobiology—including aberrant Janus kinase (JAK)- signal transducer and activator [...] Read more.
Sarcoidosis is a multisystem granulomatous disorder of uncertain origin which still presents major therapeutic dilemmas. Longstanding dependence on corticosteroids, while effective for acute inflammation, carries considerable adverse effects over time. Advances in deciphering sarcoidosis pathobiology—including aberrant Janus kinase (JAK)- signal transducer and activator of transcription (STAT) signaling, mechanistic target of rapamycin (mTOR)-driven metabolic shifts, Th1/Th17.1 immune skewing, effector T-cell exhaustion, and granuloma-centered cytokine circuits—have revealed several targets for intervention. The treatment options are rapidly changing: the SARCORT trial showed that low-dose prednisolone is non-inferior to higher prednisolone doses; the pivotal PREDMETH trial validated methotrexate as a feasible first-line steroid-sparing option; efzofitimod, a novel immunomodulator targeting neuropilin-2, produced steroid-reducing effects in Phase IIbut not in Phase III trials; and JAK inhibitors are accumulating evidence across cutaneous and systemic presentations. The 2025 World Association for Sarcoidosis and Other Granulomatoses (WASOG) statement supports a move toward earlier steroid-sparing approaches. This review methodically connects sarcoidosis molecular and pathophysiological mechanisms to new targeted treatments, examines clinical trial evidence, and proposes future directions toward biomarker-driven individualized care. Full article
(This article belongs to the Section Molecular Pathology, Diagnostics, and Therapeutics)
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20 pages, 491 KB  
Systematic Review
Autoimmune Hepatitis Induced by Immune Checkpoint Inhibitors in Adults: A Systematic Review
by Sarita Chonat and Jonathan Soldera
Diagnostics 2026, 16(12), 1821; https://doi.org/10.3390/diagnostics16121821 (registering DOI) - 12 Jun 2026
Viewed by 158
Abstract
Background/Objectives: Immune checkpoint inhibitors (ICIs) have changed the treatment landscape for several advanced malignancies, but their use is accompanied by immune-related adverse events, including liver injury. Some cases resemble autoimmune hepatitis (AIH), although many are more accurately described as AIH-like immune-mediated hepatitis rather [...] Read more.
Background/Objectives: Immune checkpoint inhibitors (ICIs) have changed the treatment landscape for several advanced malignancies, but their use is accompanied by immune-related adverse events, including liver injury. Some cases resemble autoimmune hepatitis (AIH), although many are more accurately described as AIH-like immune-mediated hepatitis rather than classical AIH. This distinction matters, as diagnosis is often based on exclusion and management must balance hepatic recovery against interruption of potentially life-prolonging cancer therapy. This systematic review summarised the clinical phenotype, diagnostic assessment, treatment strategies, treatment response, ICI discontinuation, and rechallenge outcomes in patients with ICI-associated AIH-like liver injury. Methods: A systematic PubMed search was performed for English-language human studies reporting autoimmune hepatitis, AIH-like liver injury, or immune-mediated hepatitis following exposure to ICIs. Eligible studies included case reports, case series, retrospective cohorts, prospective cohorts, and pharmacovigilance-type studies with extractable clinical, treatment, or outcome data. Reviews, guidelines, non-original articles, animal studies, non-English publications, and reports without usable liver injury data were excluded. The review followed PRISMA principles. Risk of bias was assessed using Joanna Briggs Institute tools and summarised with ROBVIS. Given the heterogeneity of study design, diagnostic criteria, treatment definitions, and outcome reporting, formal meta-analysis was not appropriate; results were therefore synthesised descriptively. Results: Twenty-two studies were included, comprising 195 patients with ICI-associated AIH-like or immune-mediated hepatitis. Of these, 140 patients received active treatment, and 133/140 achieved clinical or biochemical recovery with varying therapies. Corticosteroids were the most frequently used first-line therapy, with recovery reported in 102/105 patients treated with corticosteroids alone. Mycophenolate mofetil was the main second-line agent for steroid-refractory disease, with response reported in 9/10 treated patients. Other therapies, including tacrolimus, azathioprine, ursodeoxycholic acid, bezafibrate, tocilizumab, basiliximab, infliximab, budesonide, and double plasma molecular adsorption system with or without plasma exchange, were described only in small numbers or isolated cases. Spontaneous recovery without pharmacological treatment was reported in 19 patients. ICI interruption or discontinuation occurred in 141 patients, and rechallenge was reported in 55 patients after recovery, with no recurrent hepatic toxicity documented in the extracted dataset. Conclusions: ICI-associated AIH-like liver injury is an important immune-related toxicity, but the available literature remains fragmented and methodologically heterogeneous. Most reported patients recovered, particularly with corticosteroids, and MMF appears to be the most consistently used escalation therapy in steroid-refractory cases. However, the strength of evidence is limited by uncontrolled designs, variable terminology, inconsistent diagnostic work-up, and non-standardised outcome definitions. Future studies should separate classical AIH from AIH-like immune-mediated hepatitis, use uniform criteria for severity and response, and report treatment denominators clearly, especially for rechallenge and steroid-refractory disease. Full article
(This article belongs to the Section Clinical Diagnosis and Prognosis)
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21 pages, 6235 KB  
Article
Long-Term Adherence to Benralizumab and Sustained Clinical Benefits in Patients with Severe Eosinophilic Asthma: Insights from GALERNA, a Retrospective Real-World Study in Spain
by Ismael García-Moguel, Juan Agüero Calvo, Diana Betancor Pérez, José Ángel Carretero Gracia, Rocío Magdalena Díaz-Campos, Carmen Fernández Martínez de Septien, Ana Gómez-Bastero Fernández, Yurena Hernández Galván, Juan Antonio Lloret-Queraltó, Inmaculada Lluch Tortajada, Nuria Marina Malanda, Cristina Martín-García, Álvaro Martínez Mesa, Eva Martínez-Moragon, Juan Francisco Medina Gallardo, Alicia Padilla-Galo, Gerardo Pérez Chica, Inmaculada Plasencia García, Patricia Prieto Montaño, Carolina Puchaes Manchón, David Romero Ribate, Marcela Valverde-Monge, María Soledad Zamarro Parra, Jose Luis Sanchez-Trincado, Javier Nuevo, Elisa Luzon and José Luis Velasco-Garridoadd Show full author list remove Hide full author list
J. Clin. Med. 2026, 15(12), 4564; https://doi.org/10.3390/jcm15124564 - 12 Jun 2026
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Abstract
Background: The GALERNA study is a retrospective real-world observational study conducted across 21 hospitals in Spain, aiming to evaluate long-term clinical benefits and adherence to benralizumab in 255 adult patients with severe eosinophilic asthma (SEA) over a follow-up period of up to [...] Read more.
Background: The GALERNA study is a retrospective real-world observational study conducted across 21 hospitals in Spain, aiming to evaluate long-term clinical benefits and adherence to benralizumab in 255 adult patients with severe eosinophilic asthma (SEA) over a follow-up period of up to 144 weeks. Objectives: Primary objectives focused on assessing adherence to benralizumab, while secondary objectives included the description of severe asthma exacerbation rates, systemic corticosteroid (SCS) use, persistence to benralizumab, lung function, asthma control, and the proportion of patients achieving super-response or clinical remission. Data were collected at baseline (48 weeks prior to benralizumab initiation/index date), follow-up 1 (FUP1) (0–48 weeks), FUP2 (49–96 weeks), and FUP3 (97–144 weeks) after the index date. Results: At baseline, patients demonstrated a substantial disease burden characterised by impaired lung function, poorly controlled asthma, and frequent severe exacerbations. The results indicated high adherence rates to benralizumab, with 92.9% of patients receiving each of the prescribed doses of benralizumab at week 48 and 70.6% at week 144. Patients showed substantial and sustained clinical improvements, with a reduction in the proportion of individuals presenting at least one severe exacerbation from baseline to FUP3 and a 74% decrease in SCS use for the same period. Lung function also improved, with the proportion of patients achieving pre-bronchodilator FEV1 ≥ 80% rising to 52% at 144 weeks. Furthermore, mean Asthma Control Test (ACT) scores increased to 20.5, with 68.5% of patients achieving well-controlled asthma (ACT ≥ 20). By the end of the study, 63.6% of patients achieved super-response and 39.1% showed clinical remission, with an overall benralizumab persistence of 79.8% during all follow-up periods. Conclusions: The GALERNA study provides compelling real-world evidence that benralizumab affords marked and sustained clinical benefits together with high long-term adherence in Spanish SEA patients, reinforcing its usefulness as a long-term therapeutic option in routine clinical practice. Full article
(This article belongs to the Special Issue Advances in the Management of Chronic Cough and Severe Asthma)
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20 pages, 4004 KB  
Article
The Bisphosphonate Accumulation Index (BAI): A Quantitative Metric for Cumulative Antiresorptive Exposure in Pre-Procedural Dental and Surgical Assessment
by Piero Antonio Zecca, Rachele Elisa Miotto, Fabio Brusamolino, Nicolò Vercellini, Marco Serafin and Marina Borgese
Dent. J. 2026, 14(6), 364; https://doi.org/10.3390/dj14060364 - 12 Jun 2026
Viewed by 153
Abstract
Background/Objectives: Medication-related osteonecrosis of the jaw (MRONJ) is a serious complication of bisphosphonate therapy, whose risk is currently assessed through qualitative staging systems that do not integrate pharmacological determinants of cumulative drug exposure. The aim of this study is to present the [...] Read more.
Background/Objectives: Medication-related osteonecrosis of the jaw (MRONJ) is a serious complication of bisphosphonate therapy, whose risk is currently assessed through qualitative staging systems that do not integrate pharmacological determinants of cumulative drug exposure. The aim of this study is to present the Bisphosphonate Accumulation Index (BAI), a pharmacologically derived, dimensionless scalar quantifying cumulative exposure to bone-targeted antiresorptive agents by integrating relative potency, administered dose, dosing frequency, route-specific bioavailability, and treatment duration, for use as a pre-procedural assessment tool in patients receiving bisphosphonates. Methods: The BAI combines five pharmacologically grounded parameters from peer-reviewed literature: (1) relative antiresorptive potency referenced to etidronate; (2) dose per administration (mg); (3) monthly dosing frequency; (4) bioavailability route; and (5) years of treatment within the preceding 10-year window. The model includes nine bisphosphonates registered in Italy. Results: The BAI spans approximately five orders of magnitude (from <1000 for short-term oral therapy to >120,000 for monthly intravenous zoledronic acid). Four analyses support the model: sensitivity analysis identifies relative potency as the main source of variance; ecological calibration against nine MRONJ incidence data points yielded r = 0.911 (p = 0.0006, R2 = 0.829), indicating that the BAI accounts for approximately 83% of the population-level variance in published incidence rates across heterogeneous regimens (ecological correlation; this does not establish individual-level predictive validity); Monte Carlo simulation on 10,000 patients generated a plausible exposure-strata distribution (6.1% low, 66.6% moderate, 27.3% high); and concordance analysis with a DDD-based metric showed discordance in 7/8 regimens. Conclusions: The BAI is a transparent, reproducible, pharmacologically grounded metric of cumulative antiresorptive exposure addressing the quantitative gap identified in the AAOMS 2022 Position Paper. The BAI measures pharmacological exposure, which is a necessary but insufficient component of MRONJ risk; clinical modifiers such as corticosteroid co-administration, diabetes, renal function, and procedure type are not integrated and must be evaluated independently. The provisional exposure strata reported here (<1000, 1000–10,000, >10,000) are hypothesis-generating and intended solely to guide the design of validation studies; they should not be used as clinical decision rules until prospective patient-level validation has been completed. Full article
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11 pages, 471 KB  
Article
Rescue Inhaler Overuse in Severe Asthma: A Real-World Study of Short-Acting β2-Agonist and Short-Acting Muscarinic Antagonist Use
by Elena Villamañán, Daniel Laorden, Carlos Carpio, Javier Domínguez-Ortega, Leticia De las Vecillas, David Romero, Diana Betancor, Carolina Alfonso, Susana De Andrés, Sonia Mallón, Eva Villarroya, Alejandro Soto, Carmen Sobrino, Marta Moro, Pablo Mariscal, Alicia Herrero, Santiago Quirce and Rodolfo Álvarez-Sala
Biomedicines 2026, 14(6), 1332; https://doi.org/10.3390/biomedicines14061332 - 12 Jun 2026
Viewed by 239
Abstract
Background: Overuse of short-acting reliever inhalers, particularly short-acting β2-agonists (SABAs), is linked to poor asthma control, higher exacerbation risk, and increased mortality. Data on reliever overuse in severe asthma and the role of short-acting muscarinic antagonists (SAMAs) remain limited. Objective [...] Read more.
Background: Overuse of short-acting reliever inhalers, particularly short-acting β2-agonists (SABAs), is linked to poor asthma control, higher exacerbation risk, and increased mortality. Data on reliever overuse in severe asthma and the role of short-acting muscarinic antagonists (SAMAs) remain limited. Objective: This study aims to assess the prevalence of rescue inhaler overuse in adults with severe asthma and examine its associations with maintenance therapy adherence, biologic treatment, oral corticosteroid use, asthma control, lung function, allergic sensitization, and comorbidities. Methods: We conducted a retrospective observational study of 223 adults with severe asthma followed at a tertiary multidisciplinary clinic in 2024. Clinical, functional, pharmacological, and pharmacy-dispensing records were reviewed. Rescue inhaler overuse was defined as dispensing ≥ 3 SABA and/or SAMA canisters per 12 months. Associations with clinical and treatment variables were analyzed. Results: Among 223 patients, 144 (64.6%) had a prescribed rescue inhaler; 85 (38.1%) met the criteria for overuse. Of those prescribed rescue therapy, 59.0% overused, with 47.2% classified as low overuse and 11.1% as high overuse. Overuse was more frequent in patients with maintenance adherence > 50%. Biologic therapy was associated with reduced odds of overuse, while oral corticosteroid use showed no significant effect. Poor asthma control (ACT < 20) was strongly associated with overuse. Lung function did not differ significantly, though overusers tended to have lower FEV1. Allergic sensitization was not associated with overuse; bronchiectasis was the comorbidity most frequently linked. Conclusions: Rescue inhaler overuse is common in severe asthma and closely linked to inadequate disease control. Lower overuse rates among biologic-treated patients suggest improved control reduces reliance on short-acting relievers. Systematic monitoring of reliever use may help identify high-risk patients and guide individualized management strategies. Full article
(This article belongs to the Special Issue Biomarker, Phenotyping and Therapeutics for Asthma)
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24 pages, 1345 KB  
Article
Fluticasone Propionate/Anti-IgE Combination Preserves Bone Mechanical and Mineral Integrity Better than Monotherapies or Anti-TNF-α in Mice with Ovalbumin-Induced Allergic Airway Inflammation
by Serkan Gürgül, Can Demirel, Yahya Nural, Özlem Keskin and Mehmet Yaşar Özkars
Int. J. Mol. Sci. 2026, 27(12), 5283; https://doi.org/10.3390/ijms27125283 - 10 Jun 2026
Viewed by 250
Abstract
Allergic asthma is among the type 2-driven chronic inflammatory allergic diseases. Osteoimmunological findings indicate that shared systemic immune mediators and persistent inflammation can disrupt skeletal homeostasis and promote bone fragility. Treatment commonly includes inhaled corticosteroids like fluticasone propionate (FP) to suppress inflammation, with [...] Read more.
Allergic asthma is among the type 2-driven chronic inflammatory allergic diseases. Osteoimmunological findings indicate that shared systemic immune mediators and persistent inflammation can disrupt skeletal homeostasis and promote bone fragility. Treatment commonly includes inhaled corticosteroids like fluticasone propionate (FP) to suppress inflammation, with anti-immunoglobulin E (anti-IgE) biologics added to interrupt the IgE-mediated allergic cascade. TNF-α inhibitors (anti-TNF) are also being studied for their impact on inflammatory pathways. However, their capacity to preserve bone mechanical/mineral integrity in allergic airway inflammation (AAI) remains unclear. This study compared the efficacy of anti-TNF, FP, and anti-IgE monotherapies and an FP/anti-IgE combination in mitigating AAI-induced deficits in bone mechanical/mineral integrity in an ovalbumin (OVA)-induced chronic murine AAI model. Fifty-six male BALB/c mice (8–10 weeks old; 22–24 g) were randomly assigned to control, AAI (OVA-sensitized/challenged), and five treatment cohorts: FP (2000 μg), low-/high-dose anti-IgE (aIgE-L/aIgE-H; 100/200 μg), anti-TNF (aTNF; 6.25 mg/kg-bw), and FP/aIgE-H combination. Following an 8-week protocol, three-point bending and inductively coupled plasma-mass spectrometry (ICP-MS) were used to assess bone mechanical properties and physicochemical characteristics of the mineral phase (calcium (Ca) and phosphorus (P) levels; stoichiometric Ca/P ratio), respectively. Analyses showed that aIgE-L and FP monotherapies failed to mitigate AAI-induced bone changes. aTNF and aIgE-H monotherapies provided comparable protection of cross-sectional properties, rigidity, energy-to-fracture, elastic modulus, and yield/ultimate moments; however, aIgE-H was more efficacious in preserving Ca and P levels and the stoichiometric Ca/P ratio. The FP/aIgE-H combination demonstrated the greatest efficacy in preventing mechanical deterioration and preserving mineral integrity, suggesting it as the optimal strategy for maintaining skeletal health in the management of type 2-driven AAI. Full article
(This article belongs to the Section Molecular Immunology)
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10 pages, 332 KB  
Article
Intravitreal Therapy in Adults Aged ≤50 Years: Etiologic Spectrum, Treatment Patterns and Visual Outcomes in a Real-World Cohort
by Carmen Antía Rodríguez-Fernández, David Oliver-Gutierrez, Albert Arnaiz, Tatiana Pablos, Gloria Segura-Duch and Miguel Ángel Zapata
J. Clin. Med. 2026, 15(12), 4508; https://doi.org/10.3390/jcm15124508 - 10 Jun 2026
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Abstract
Background: Intravitreal injections (IVI) are widely used for the management of retinal diseases, yet younger adults are underrepresented in clinical trials and real-world reports. Data on the etiologic distribution and treatment patterns of IVI in patients aged ≤50 years remain limited. This study [...] Read more.
Background: Intravitreal injections (IVI) are widely used for the management of retinal diseases, yet younger adults are underrepresented in clinical trials and real-world reports. Data on the etiologic distribution and treatment patterns of IVI in patients aged ≤50 years remain limited. This study aimed to characterize the indications, treatment strategies, and visual outcomes of IVI in this age group. Material and Methods: Retrospective, single-center observational study including adults aged 18–50 years who received IVI between January 2020 and December 2023 at a tertiary referral hospital in Spain. Demographic data, diagnosis, treatment modality, regimen, number of injections and best-corrected visual acuity (BCVA) were collected. One eye per patient was included for analysis. Visual outcomes were assessed as change in logMAR BCVA between baseline and final follow-up. Results: A total of 122 patients were included. The most frequent indications were diabetic macular edema (29.5%), macular neovascularization of various etiologies (21.3%), retinal vein occlusion (13.9%) and uveitis (9.8%). Anti-vascular endothelial growth factor (anti-VEGF) agents were used in 80.3% of eyes, corticosteroids in 6.6% and combination therapy in 13.1%. The mean number of injections per patient was 6.0 ± 5.3 over a mean follow-up of 3.0 ± 2.5 years. Overall BCVA improved significantly from 0.50 ± 0.59 to 0.38 ± 0.50 logMAR (p = 0.012). Conclusions: IVI in adults ≤ 50 years is uncommon but encompasses a broad etiologic spectrum. Diabetic macular edema and macular neovascularization of diverse etiologies were the leading indications. Anti-VEGF therapy represented the main treatment modality in this cohort. Full article
(This article belongs to the Special Issue New Insights into Retinal Diseases)
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22 pages, 3442 KB  
Article
Unsupervised Machine-Learning-Based Endotype Discovery Using Iterative Resampling in Dupilumab-Treated Patients
by Emma Moreno-Jiménez, Natalia Morgado, Asunción García-Sánchez, Juan Carlos Triviño, Miguel Estravís, Manuel Gómez-García, María Gil-Melcón, Milagros Lázaro-Sastre, Catalina Sanz, María Isidoro-García and Ignacio Dávila
Int. J. Mol. Sci. 2026, 27(12), 5266; https://doi.org/10.3390/ijms27125266 - 10 Jun 2026
Viewed by 111
Abstract
Asthma is a heterogeneous inflammatory disorder involving multiple immune pathways, frequently presenting alongside comorbidities such as chronic rhinosinusitis with nasal polyps (CRSwNP). Although biologic therapies such as dupilumab have shown clinical efficacy, the molecular mechanisms underlying variable treatment responses remain poorly understood. This [...] Read more.
Asthma is a heterogeneous inflammatory disorder involving multiple immune pathways, frequently presenting alongside comorbidities such as chronic rhinosinusitis with nasal polyps (CRSwNP). Although biologic therapies such as dupilumab have shown clinical efficacy, the molecular mechanisms underlying variable treatment responses remain poorly understood. This study aimed to characterize transcriptomic patterns that distinguish asthmatic patients from healthy controls and to evaluate transcriptomic changes induced by dupilumab. Whole-blood RNA-seq was performed in 66 samples, 18 patients (G0) with severe asthma before and after 6 months of dupilumab treatment compared with 30 non-asthmatic controls. Differentially expressed genes (DEGs) were identified and validated by quantitative PCR (qPCR). Clinical responses were assessed using the FEV1, Exacerbations, Oral corticosteroids, Symptoms (FEOS) score and the Sino-Nasal Outcome Test-22 (SNOT-22). A total of 1124 DEGs were identified, distinguishing asthmatic patients from controls. Notably, ABCC1, CYP4F12, FBN1, IKZF2, and RAB44 were differentially expressed across all patients’ subgroups and are proposed as putative general disease biomarkers. Unsupervised machine learning analysis of pre- vs. post-dupilumab transcriptomic profiles identified two distinct patient subgroups within G0, here termed G1 and G2. When comparing baseline vs. post-treatment samples in the overall cohort (G0), only 12 DEGs were identified. In contrast, stratified analysis revealed 1288 DEGs in G1 and 354 DEGs in G2, suggesting divergent molecular response to treatment. Additionally, baseline expression of DIXDC1 was identified as a predictor of CRSwNP non-super-responders. By applying unsupervised machine learning to transcriptomic profiles, this exploratory study identifies two distinct endotypes with divergent molecular mechanisms of response to dupilumab, supporting a precision medicine approach to biologic therapy in severe asthma. Full article
(This article belongs to the Special Issue Molecular Crosstalk in Allergy, Barrier Dysfunction, and Asthma)
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14 pages, 1807 KB  
Case Report
Bilateral Transient Osteoporosis of the Hip in Pregnancy: Diagnostic Challenges, MRI-Based Approach, and Multidisciplinary Management
by Pavol Zubor, Kristen Olav Lind, Jozef Visnovsky, Petra Zuborova, Guri Grimnes and Cato Kjærvik
Diseases 2026, 14(6), 208; https://doi.org/10.3390/diseases14060208 - 10 Jun 2026
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Abstract
Background: Pregnancy-related transient osteoporosis of the hip (PR-TOH) is an uncommon and frequently underdiagnosed condition that typically presents with acute hip pain during late pregnancy or the early postpartum period. Because its clinical presentation is nonspecific and overlaps with pregnancy-related pelvic girdle pain, [...] Read more.
Background: Pregnancy-related transient osteoporosis of the hip (PR-TOH) is an uncommon and frequently underdiagnosed condition that typically presents with acute hip pain during late pregnancy or the early postpartum period. Because its clinical presentation is nonspecific and overlaps with pregnancy-related pelvic girdle pain, the diagnosis is often delayed, and the initial management is suboptimal. Although bilateral involvement has been reported, comparative data on diagnostic work-up, multidisciplinary management, and follow-up remain limited. Case Presentation: We report a case of bilateral PR-TOH in a 35-year-old Caucasian primigravida (G1, P0) who presented at 31 + 6 weeks of gestation with progressively worsening bilateral hip pain that culminated in severe functional impairment and wheelchair dependence. Initial ultrasound, laboratory work-up, and rheumatological screening were inconclusive, and intra-articular corticosteroid injections failed to relieve symptoms and were temporally associated with deterioration of glycaemic control and a periorbital and palmar eczematous rash. Magnetic resonance imaging (MRI) demonstrated diffuse bone marrow oedema in both femoral heads with preserved articular cartilage and no evidence of avascular necrosis, supporting a diagnosis of bilateral PR-TOH. Postpartum dual-energy X-ray absorptiometry (DXA) confirmed reduced bone mineral density at both femoral necks (Z-scores below −2.0). Pregnancy was prolonged until 37 + 4 weeks, and delivery was by elective caesarean section. Postpartum care included analgesia, calcium and vitamin D supplementation, structured physiotherapy, and a graded weight-bearing rehabilitation programme. Bone mineral density improved markedly on follow-up DXA at six months, with complete clinical recovery and no further imaging abnormalities at 12, 24, and 30 months. Conclusions: PR-TOH should be considered in pregnant or postpartum women with persistent hip pain and progressive functional limitation. MRI is the key imaging modality for early diagnosis and for excluding alternative causes, whereas DXA remains the reference standard for quantifying bone mineral density and monitoring recovery. Bilateral presentations require a multidisciplinary, individualised approach that addresses both maternal and obstetric outcomes. Full article
(This article belongs to the Special Issue ‘Rare Syndromes: Diagnosis and Treatment’ in 2024–2026)
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6 pages, 398 KB  
Case Report
Refractory Thrombocytopenia in TP53—Aberrant Chronic Lymphocytic Leukemia: A Multimechanistic Case with Response to Idelalisib and Romiplostim
by Serkan Guven, Hulya Kacar, Omer Seker and Fatih Demirkan
J. Clin. Med. 2026, 15(12), 4483; https://doi.org/10.3390/jcm15124483 - 10 Jun 2026
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Abstract
Background/Objectives: Thrombocytopenia in chronic lymphocytic leukemia (CLL) is a heterogeneous and multifactorial complication that often reflects the combined effects of immune dysregulation, impaired megakaryopoiesis, bone marrow microenvironmental disruption, and disease-related factors. In patients with high-risk molecular features, particularly TP53 abnormalities, management becomes increasingly [...] Read more.
Background/Objectives: Thrombocytopenia in chronic lymphocytic leukemia (CLL) is a heterogeneous and multifactorial complication that often reflects the combined effects of immune dysregulation, impaired megakaryopoiesis, bone marrow microenvironmental disruption, and disease-related factors. In patients with high-risk molecular features, particularly TP53 abnormalities, management becomes increasingly challenging and frequently refractory to conventional therapies. Methods: We report a 57-year-old male with long-standing CLL characterized by a highly aggressive and treatment-refractory course. The patient developed persistent severe thrombocytopenia despite multiple lines of therapy, including corticosteroids, intravenous immunoglobulin, rituximab, splenectomy, and thrombopoietin receptor agonists. Subsequent treatments with ibrutinib and a venetoclax-based regimen failed to improve platelet counts and were discontinued due to worsening cytopenia. Bone marrow evaluation, molecular/cytogenetic analyses, and subsequent treatment responses were thoroughly evaluated. Results: Bone marrow evaluation revealed hypercellularity with significant CLL infiltration, dysplastic megakaryopoiesis, and reticulin fibrosis, indicating impaired platelet production in addition to immune-mediated destruction. Molecular and cytogenetic analyses demonstrated high-risk disease with deletion of 17p and dual TP53 mutations (p.His179Tyr and p.Arg282Trp), consistent with biallelic TP53 disruption. Romiplostim monotherapy did not result in a meaningful hematologic response. However, following the addition of idelalisib, a rapid and sustained increase in platelet counts was observed, allowing tapering of romiplostim and stabilization of hematologic parameters. Conclusions: This case highlights the complex and dynamic pathophysiology of thrombocytopenia in CLL, where immune-mediated destruction and defective thrombopoiesis coexist within a profoundly altered marrow microenvironment. TP53 disruption appears to play a central role not only in driving treatment resistance but also in promoting immune dysregulation and disease aggressiveness. Although a delayed therapeutic effect of romiplostim cannot be entirely excluded, the distinct temporal association following idelalisib initiation suggests a potential collaborative interaction or disease-directed clearance that may facilitate platelet recovery in this setting. Refractory thrombocytopenia in CLL should be approached as a manifestation of complex disease biology rather than an isolated complication. This single observation indicates that in TP53 aberrant cases with multi-mechanism thrombocytopenia, disease-directed targeted therapy may contribute significantly to platelet recovery. Full article
(This article belongs to the Special Issue Advances in the Management of Chronic Lymphocytic Leukemia)
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19 pages, 2140 KB  
Article
Expanding Steroid Glycodiversity: Tandem Steroid Glucosylation and Acetylation via Enzymatic Cascade
by Agata Matera, Kinga Dulak, Sandra Sordon, Ewa Huszcza, Tomasz Janeczko and Jarosław Popłoński
Int. J. Mol. Sci. 2026, 27(12), 5232; https://doi.org/10.3390/ijms27125232 - 9 Jun 2026
Viewed by 222
Abstract
Steroid glycosides constitute an important class of bioactive molecules, yet their selective synthesis remains challenging. Here, we established a screening platform for nucleotide sugar-dependent glycosyltransferases (GTs) coupled with sucrose synthase (SuSy) for in situ UDP-glucose regeneration, enabling cost-efficient steroid glucosylation. A library of [...] Read more.
Steroid glycosides constitute an important class of bioactive molecules, yet their selective synthesis remains challenging. Here, we established a screening platform for nucleotide sugar-dependent glycosyltransferases (GTs) coupled with sucrose synthase (SuSy) for in situ UDP-glucose regeneration, enabling cost-efficient steroid glucosylation. A library of GTs comprising literature-derived enzymes and newly mined archaeal and fungal candidates was constructed using sequence filtering, AlphaFold3 modeling, and docking-guided prioritization. The resulting panel was screened against 31 structurally diverse steroids (androgens, estrogens, pregnanes, and corticosteroids) using crude Escherichia coli lysates as catalysts and UPLC-DAD, LC-MS and NMR analytics. YjiC and OleD glycosyltransferases emerged as the most promiscuous biocatalysts, while Sbaic7OGT and SgUGT74AC1_M7 displayed greater selectivity toward estrogens and selected testosterone derivatives. Product assignment for representative reactions was validated using authenticated reference standards or NMR (1D/2D) analysis, confirming regioisomeric estradiol monoglucosides (3-O- and 17-O-), estrone 3-O-glucoside, and an unexpected product diversification for 17α-testosterone by endogenous E. coli enzyme, where the major product was identified as a 6′-O-acetylated glucoside. Finally, SuSy-coupled cascades were applied in semi-preparative scale and evaluated under optimized conditions and co-immobilization formats. Full article
(This article belongs to the Special Issue Advanced Research on Enzymes in Biocatalysis)
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33 pages, 13686 KB  
Review
Calcineurin Inhibitors in Atopic Dermatitis: Balancing Tradition with Emerging Therapeutics
by Rakesh Kumar, Syed Arman Rabbani, Mohamed El-Tanani, Shrestha Sharma and Manita Saini
Med. Sci. 2026, 14(2), 297; https://doi.org/10.3390/medsci14020297 - 8 Jun 2026
Viewed by 335
Abstract
Atopic dermatitis (AD) is a common chronic inflammatory condition of the skin that has increased dramatically over the past decade and significantly impacts individual quality of life. Corticosteroids are still the primary therapy for AD, but there are limitations to their continued use [...] Read more.
Atopic dermatitis (AD) is a common chronic inflammatory condition of the skin that has increased dramatically over the past decade and significantly impacts individual quality of life. Corticosteroids are still the primary therapy for AD, but there are limitations to their continued use due to potential adverse effects, particularly when used in sensitive areas. Topical calcineurin inhibitors (CNIs), such as tacrolimus and pimecrolimus, are available as a safe, steroid-sparing alternative that directly inhibit calcineurin-mediated activation of T cells and have been shown to be efficacious according to varying clinical study designs including randomized controlled trials, registry studies and meta-analyses. Although there was controversy regarding the safety of CNIs subsequent to the FDA’s black-box warning in 2006, the preponderance of evidence supports their continued safety when used as directed. In contrast to biologics and JAK inhibitors, CNIs occupy an inherently unique therapeutic niche for use in pediatric patients, have demonstrated historical efficacy, and can provide localized affordable treatment in sensitive areas including the face, eyelids and intertriginous surfaces. Furthermore, the role of CNIs in the context of precision dermatology continues to be defined through new innovations including barrier-repair strategies used in combination with topical medications, microneedle systems, and nanocarrier formulations. Hence, the role of CNIs in the current AD treatment paradigm is crucial and lies at the interface between topical corticosteroids and systemic immunomodulatory agents. The narrative review discusses recent advances in formulation strategies, combination approaches, and targeted delivery systems, underscoring how CNIs continue to bridge established practice and emerging therapeutic innovation in AD. Full article
(This article belongs to the Topic The Pathogenesis and Treatment of Immune-Mediated Disease)
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22 pages, 1106 KB  
Review
Cognitive Impairment in Patients with Glioma: Mechanisms, Assessment, and Emerging Therapeutic Strategies
by Katarzyna Piec, Maciej Blok, Magdalena Adamczak-Sobczak, Izabela Zarębska and Maciej Harat
Cancers 2026, 18(12), 1865; https://doi.org/10.3390/cancers18121865 - 7 Jun 2026
Viewed by 336
Abstract
Aim: This review summarizes the current evidence on cognitive impairment in patients with glioma, with particular emphasis on the underlying mechanisms, methods for objective assessment of cognitive deficits, and currently available therapeutic strategies. Methods: Relevant literature was identified through searches of the PubMed, [...] Read more.
Aim: This review summarizes the current evidence on cognitive impairment in patients with glioma, with particular emphasis on the underlying mechanisms, methods for objective assessment of cognitive deficits, and currently available therapeutic strategies. Methods: Relevant literature was identified through searches of the PubMed, Cochrane Library, and Google Scholar databases. Studies addressing the mechanisms, assessment, and management of cognitive impairment in patients with glioma published between January 2000 and February 2026 were reviewed to summarize current evidence and emerging therapeutic strategies. A structured literature search and study selection process was performed. Results: Cognitive deficits represent a heterogeneous clinical problem affecting the majority of patients diagnosed with gliomas. These impairments are multifactorial in origin, resulting both from direct infiltration of white matter by the tumor process and from the cumulative toxicity of treatment modalities, including radiotherapy, chemotherapy, corticosteroid therapy, and long-term use of antiseizure medications. Analysis of the current literature confirms that modern radiotherapy techniques (e.g., hippocampal-sparing approaches) and isocitrate dehydrogenase (IDH)-targeted therapies, such as vorasidenib, may significantly delay cognitive decline. Standardized neuropsychological batteries for the objective assessment of these disturbances remain the preferred tools recommended by the International Cognition and Cancer Task Force (ICCTF). Regarding therapeutic interventions, potential benefits have been demonstrated for supportive pharmacotherapy (including memantine), while individualized neuropsychological rehabilitation has also been shown to improve patients’ quality of life. Full article
(This article belongs to the Section Cancer Survivorship and Quality of Life)
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