Weekly digest · ISO week 26

Post-viral research digest, week 26 2026: 45 new studies

22 June 2026 – 28 June 2026 · published 28 June 2026 · Subscribe

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  3. Week 26 2026

Between 22 June 2026 and 28 June 2026 the tracker indexed 45 new peer-reviewed studies and 9 clinical-trial updates across 8 post-viral and post-infectious conditions.

By the numbers

45new studies this issue
9trial updates this issue
544studies currently in the feeds
620clinical trials tracked
546biomarkers catalogued

Studies tracked = entries across the 8 condition feeds (each feed keeps a rolling window of recent PubMed results); trials tracked = ClinicalTrials.gov records in the current trial snapshot (last run 2026-06-26); biomarkers catalogued = marker entries across all OSMF biomarker atlases.

In this issue:

New studies by condition

Long COVID (PASC) 7 new

Full feed: Long COVID research tracker

Systemic atopy and upper-airway disease define susceptibility to incident asthma after COVID-19 in Korea.

Nature communications · 28 June 2026 · Choi, You-Jung, Kim, Young-Chan, Bea, Sungho, Shin, Ju-Young et al. PubMed 42364998

Incident asthma is an important respiratory sequela after COVID-19, but it is unclear which allergic phenotypes amplify risk. Using a linked nationwide Korean database of 3,987,182 individuals with confirmed severe acute respiratory syndrome coronavirus 2 infection, we compare claims-based incident asthma in those with pre-existing systemic atopy and/or upper-airway disease (allergic rhinitis, chronic...

SARS-CoV-2 and diabetes: a post-pandemic reappraisal.

Diabetologia · 27 June 2026 · Said, Noora, Jones, Ian, Anderson-Baucum, Emily K, Evans-Molina, Carmella PubMed 42362970

The COVID-19 pandemic was a dynamic and often confusing period for clinical and biomedical research. As severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spread globally, knowledge accumulated rapidly through publications that were frequently based on preliminary or sometimes conflicting evidence, yet these papers played a critical role in shaping evolving medical, research and societal responses.

A qualitative study of the impact of the COVID-19 pandemic on healthcare access and service delivery for people living with chronic obstructive pulmonary disease and asthma.

Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 27 June 2026 · Brehon, Katelyn, Choi, Mirsol, Hung, Pam, Miciak, Maxi et al. PubMed 42363213

Incidence of chronic obstructive pulmonary disease and asthma diagnosis were lower during and after the Coronavirus disease 2019 pandemic in Alberta, Canada. However, it is unknown whether incidences were actually lower or if the pandemic created circumstances where patients did not seek care.

ME/CFS 10 new

Full feed: ME/CFS research tracker

Effect of "Tongdu Yupi Tiaoshen" electroacupuncture on behavioral performance and hippocampal structure and function in chronic fatigue syndrome rats.

Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 28 June 2026 · Yuanyuan, Q U, Chuwen, Feng, Weibo, Sun, Yuying, Shao et al. PubMed 42365408

To investigate the effects of electroacupuncture intervention on behavioral performance, hippocampal structure, and function in chronic fatigue syndrome (CFS) rats and to explore the underlying mechanisms. Specific pathogen free-grade male Sprague-Dawley rats were randomly allocated into a control group (Con group, Behavioral assessments demonstrated that electroacupuncture intervention significantly improved rat...

Comparison of Proteomic Analysis of Cerebrospinal Fluid From Neurological Patients With and Without Amyotrophic Lateral Sclerosis.

Journal of neurochemistry · 27 June 2026 · Sabetta, Eleonora, Rallmann, Karin, Taba, Pille, Pfaff, Abigail L et al. PubMed 42360043

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder characterised by progressive muscle weakness in both bulbar and extremity muscles, leading to a diverse clinical phenotype with motor and non-motor symptoms. Approximately 85% of ALS cases are sporadic (sALS), while the remaining 10%-15% are familial (fALS).

Redefining pandemic resilience: a roadmap for post-infectious syndrome preparedness and health system transformation.

Frontiers in health services · 26 June 2026 · Schieffer, Bernhard PubMed 42358486

Post-infectious syndromes like Long COVID and ME/CFS lead to disability and economic losses globally, especially in lower-income countries. These involve complex multisystem issues such as immune disturbances, inflammation, autonomic dysregulation, vascular problems, altered metabolism, and tissue damage.

Human Herpesvirus-6A and -6B (HHV-6A and HHV-6B): The Role of Roseoloviruses in Neurological Dysfunction and the Mechanisms of Viral-Induced Epileptogenesis.

Viruses · 26 June 2026 · Bahramian, Elham, Bajpai, Ananya, Yang, Xue, Cairns, Dana M et al. PubMed 42357670

Human herpesvirus-6 consists of a pair of viral species, HHV-6A and HHV-6B, which are neurotropic with the ability to invade, persist, and reactivate within the nervous system. Accumulating evidence links HHV-6 to epilepsy and other neuropathologies, including: multiple sclerosis, chronic fatigue syndrome, and neurodegeneration.

Tryptophan Metabolism and Aryl-Hydrocarbon Receptor Agonists in the Gut Microbiome of People With Myalgic Encephalomyelitis/Chronic Fatigue Syndrome.

MicrobiologyOpen · 22 June 2026 · Esteban, David J, Conrad, Brynn, Cullinan, Autumn, Luong, Sharon et al. PubMed 42325052

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a debilitating chronic disease with unknown biological basis and no cure. Microbiome dysbiosis has been reported in people with ME/CFS but its relevance to pathophysiology is unknown.

Elevated serum levels of interleukin-11 and matrix metalloproteinase-9 in myalgic encephalomyelitis/chronic fatigue syndrome.

Frontiers in immunology · 22 June 2026 · Chinnappan, Baskaran, Kempuraj, Duraisamy, Aenlle, Kristina K, Middleton, Ashley et al. PubMed 42327760

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a disease of unknown etiology associated with chronic severe fatigue and neurological symptoms, including dizziness, sleep disturbances, cognitive impairment and pain. There are no reliable blood biomarkers available for ME/CFS, possibly due to the lack of specific pathogenesis, even though Epstein-Barr Virus (EBV) has been suspected.

Chronic Lyme / Post-Treatment Lyme Disease Syndrome 2 new

Full feed: Lyme / PTLDS research tracker

Patient roadmap and economic burden of chronic tick-borne illness and post-treatment Lyme disease syndrome in Ireland, and public health issues arising.

Frontiers in public health · 26 June 2026 · Avramovic, Gordana, Gilbert, Leona, Kujawski, Sławomir, Blehle, Sigrid et al. PubMed 42359130

Lyme borreliosis (LB), commonly referred to as Lyme disease (LD), is a prominent global health issue, exhibiting a seroprevalence rate of 14.5%. Heightened incidence levels of LD have been recorded in parts of Europe, Poland, Eastern Europe, and the Baltic States.

Anti-

Pathogens (Basel, Switzerland) · 25 June 2026 · Aslan Başbulut, Eşe, Yavuz, Demet, Demir, Tülin PubMed 42347267

Lyme borreliosis is a multisystemic tick-borne infection caused by The study included 45 patients and 45 age and sex matched controls. Serum samples were tested for anti- Overall, anti- IgG seropositivity was numerically higher among patients with CKD of unknown etiology than among healthy controls; however, this difference was not statistically significant.

Gulf War Illness 2 new

Full feed: Gulf War Illness research tracker

The comparative ameliorating effects of an amorphous formula of curcumin and α-glycosyl isoquercitrin on hippocampal dysfunction in a rat gulf war illness model.

Metabolic brain disease · 25 June 2026 · Tang, Qian, Shobudani, Momoka, Sakamaki, Yuri, Ebizuka, Yuri et al. PubMed 42347851

Brain dysfunction is a primary symptom of Gulf War illness (GWI). The present study investigated the effects of an amorphous formula of curcumin (CUR) and α-glycosyl isoquercitrin (AGIQ) on neurobehaviors and adult neurogenesis and following synaptic plasticity of produced neurons in the hippocampal dentate gyrus (DG) in a rat GWI model.

"Treat us Like Human Beings": Messages and Recommendations to U.S. Policymakers and Veterans Health Administration Providers from a Qualitative Inquiry Into the Health Experiences of Gulf War Veterans With Gulf War Illness.

Journal of patient experience · 22 June 2026 · Montague, Kara A, Lafferty, Megan, Graham, Michael, Nugent, Shannon M PubMed 42328091

Gulf War Illness (GWI) affects many U.S. Veterans of the 1990-1991 Persian Gulf War (GWVs), yet recognition of the condition and effective treatments remain limited.

Postural Orthostatic Tachycardia Syndrome (POTS) 3 new

Full feed: POTS research tracker

Effects of auricular vagal neuromodulation therapy combined with slow-paced diaphragmatic breathing in individuals with postural tachycardia syndrome: a randomised controlled trial protocol.

BMJ open · 25 June 2026 · Brandl, Tobias, Pichler, Florian, Grabovac, Igor, Waldhoer, Thomas et al. PubMed 42342403

Postural orthostatic tachycardia syndrome (POTS) is a multifactorial disorder of the autonomic nervous system characterised by an excessive increase in heart rate (HR) on standing and a wide range of debilitating symptoms, including fatigue, exercise intolerance, cognitive impairment and a high prevalence of depression, anxiety and sleep disturbances. Conventional pharmacological strategies often offer limited...

Assessing autonomic nervous system imbalance in long COVID-19 patients through heart rate variability during tilt testing.

Scientific reports · 25 June 2026 · Camargo, Samuel Minucci, Dos Santos, Ana Leticia Gomes, Maximo, Stella Tassinari, da Silva et al. PubMed 42343084

Long COVID-19 is recognized as a condition associated with autonomic nervous system (ANS) dysfunction. However, quantitative evidence of its impact on heart rate variability (HRV) and blood pressure (BP) regulation during postural changes remains limited.

Mast Cell Activation Syndrome (MCAS) 20 new

Full feed: MCAS research tracker

Role of gamma-aminobutyric acid-ergic neurons in the thalamic reticular nucleus in regulating sleep-wake cycles in mice treated with acupuncture for insomnia.

Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 28 June 2026 · Xiaoxiao, L U, Yipeng, X U, Minjie, Zhou, Chengshun, Zhang et al. PubMed 42365403

To test whether acupuncture improves sleep by enhancing gamma-aminobutyric acid-ergic (GABA) neuronal activity in the thalamic reticular nucleus (TRN). We established an animal model using p-chlorophenylalanine (PCPA).

Protein-Free Diet Aggravates Food Allergy Response via the Consumption of Glycochenodeoxycholic Acid in a Murine Model.

Journal of agricultural and food chemistry · 27 June 2026 · Shi, Qiang, Chen, Chuang, Bai, Tianliang, Zhang, Shan et al. PubMed 42360286

Amino acid-based formulas (AAFs) are increasingly consumed in infants with food allergy (FA), while the effects of their long-term consumption on FA remain poorly known. This study investigated the effects of the long-term consumption of AAFs on FA by subjecting neonatal mice to an amino acid-based diet (AAD).

Outcomes and prognostic factors in patients with systemic mastocytosis and an associated myeloid neoplasm: an international ECNM registry study.

Journal of hematology & oncology · 27 June 2026 · Hermine, Olivier, Debeaupuis, Orianne, Damaj, Gandhi, Lübke, Johannes et al. PubMed 42363232

Systemic mastocytosis (SM) is a spectrum of hematologic disorders characterized by accumulation of atypical mast cells (MCs) in extracutaneous organs. SM with an associated hematologic neoplasm (SM-AHN), the most frequent subtype of advanced SM, is predominantly associated with myeloid neoplasms, consistent with shared clonal architecture.

Mast cell proteases and their significance in physiology, pathology, and therapeutic approaches.

Pharmacological reviews · 27 June 2026 · Derakhshani, Afshin, Mahajan, Leela, Lesack, Kyle, Saranjam, Navid et al. PubMed 42361439

Mast cells (MCs) are versatile, multifunctional immune cells with broad roles in physiological homeostasis and pathogenic processes. MCs are found in most tissues, including skin, lungs, intestines, and peritoneum, and they vary in numbers, types, and biological functions.

Loss of epidermal miR-149 sensitizes to skin inflammation.

The Journal of allergy and clinical immunology · 27 June 2026 · Luo, Longlong, Yuan, Hao, Srivastava, Ankit, Annusver, Karl et al. PubMed 42362092

Keratinocytes play a central role in amplifying skin inflammation in psoriasis and atopic dermatitis (AD). However, the epithelial-intrinsic regulators involved in responsiveness to inflammatory cues remain poorly defined.

Innovative diagnostic techniques and their clinical implications in food allergy: current clinical practice and future perspectives.

Frontiers in allergy · 26 June 2026 · Rossi, Carlo Maria, Merli, Stefania, Borgonovo, Linda, Giardina, Michelle et al. PubMed 42358594

Food allergy (FA) is an immune-mediated adverse reaction to food components (mainly proteins) and represents an increasing global health problem, affecting millions of individuals and imposing substantial clinical, psychosocial, and economic burdens. Accurate diagnosis is essential to prevent life-threatening reactions while avoiding unnecessary dietary restrictions and impaired quality of life.

Treatment Approaches for Omalizumab-Refractory Chronic Spontaneous Urticaria.

Journal of inflammation research · 25 June 2026 · Ensina, Luis Felipe, Ferrer, Marta, Al-Ahmad, Mona, Fomina, Daria et al. PubMed 42345003

Chronic spontaneous urticaria (CSU) is a mast cell-driven disease that impairs health-related quality of life. Although omalizumab is a cornerstone treatment for patients uncontrolled with up-dosed second-generation H1-antihistamines, some patients remain partially responsive or refractory.

Therapeutic effects of jaceosidin on atopic dermatitis via ubiquitin-mediated JAK1 degradation.

Phytomedicine : international journal of phytotherapy and phytopharmacology · 25 June 2026 · Wei, Ruoqu, Cheng, Wenjie, Zhang, Jie, Zou, Quan et al. PubMed 42341525

Atopic dermatitis (AD) is a prevalent inflammatory skin disease with substantial clinical burden. Jaceosidin (JAC), a trihydroxy-dimethoxy flavone primarily isolated from Artemisia genus and several other plants, possesses potent immunomodulatory and anti-inflammatory activities with therapeutic potential for inflammatory skin diseases.

P2 Receptors as Therapeutic Targets in Allergic Rhinitis: Insights From the Use of Natural Products and Preclinical Studies.

Journal of immunology research · 25 June 2026 · Pereira, Thalita Calvet, Rocha, Leandro, Faria, Robson Xavier PubMed 42345616

Allergic rhinitis (AR) is a chronic inflammatory disorder of the upper airways that is mediated by immunoglobulin E (IgE) and triggered by environmental allergens. Current pharmacological therapies, including antihistamines, corticosteroids, and immunotherapy, offer symptomatic relief but are limited by their incomplete disease-modulating effects and potential adverse side effects.

Nasal Cytology as a Local Biomarker of Airway Inflammation: A Paradigm Shift in Precision Medicine.

Pathophysiology : the official journal of the International Society for Pathophysiology · 25 June 2026 · Gelardi, Matteo PubMed 42347019

Biomarker-driven approaches have markedly improved the stratification and management of airway inflammatory diseases. However, in everyday clinical practice, these strategies still rely mainly on systemic indicators, which often provide only an indirect view of the inflammatory processes occurring within the airway mucosa.

INVA8001, a novel and highly selective chymase inhibitor, ameliorates liver inflammation, fibrosis, and hyperplasia in Mdr2 knockout mice.

Frontiers in medicine · 25 June 2026 · Sharma, Sameer, Chen, Lixian, Zhou, Tianhao, Chawla, Meenakshi et al. PubMed 42344483

Mast cells (MCs) play a significant role in autoimmune diseases by mediating inflammatory responses, innate and adaptive responses, angiogenesis, and various pathological processes. In chronic liver diseases, MC numbers are significantly increased, and their degranulation leads to release of mediators, including chymase, which increases inflammation, activates hepatic stellate cells (HSCs), leading to fibrosis.

Esculetin attenuates migraine-like pain via CGRP suppression and meningeal mast cell modulation in rat models.

Journal of Zhejiang University. Science. B · 25 June 2026 · Gonul, Ayca Nur, Torun, Ibrahim Ethem, Kilinc, Yasemin Baranoglu, Kilinc, Erkan PubMed 42343635

Growing evidence suggests that esculetin, a 5-lipoxygenase inhibitor, has pharmacotherapeutic potential due to its various pharmacological properties, such as potent anti-inflammatory, anti-nociceptive, and γ-aminobutyric acid type A (GABA 越来越多的证据表明,秦皮乙素作为一种5-脂氧合酶抑制剂,因其具有强效抗炎、抗伤害感受及γ-氨基丁酸A型(GABA

Differential Regulation of Granule Release in Platelets and Immune Cells.

TH open : companion journal to thrombosis and haemostasis · 25 June 2026 · Xia, Qing, Hu, Jiandao, Sun, Hongcun, Zhu, Zhixiang et al. PubMed 42343980

Platelets and certain immune cells contain releasable granules that play essential roles in hemostasis and immune regulation. However, the regulatory mechanisms governing degranulation of platelets versus immune cells remain incompletely understood.

Melittin in AllergoOncology: From Honey Bee Venom to Anti-Cancer Therapeutic Innovation-An EAACI Position Paper.

Allergy · 24 June 2026 · Jimenez-Rodriguez, Teodorikez-Wilfox, Ahmetaj, Luljeta, Alfaya Arias, Teresa, Boni, Elisa et al. PubMed 42337945

Honey bee venom (HBV) represents a unique interface between allergy and oncology, exemplifying how allergen-derived molecules can be repurposed as anti-cancer agents. Melittin, the principal component of HBV, accounts for 40%-50% of its dry weight and is responsible for most of its biological activity.

The association between atopic dermatitis and rosacea: a comprehensive review from comorbidities to pathogenic mechanisms.

Frontiers in immunology · 22 June 2026 · Zeng, Yuewei, Feng, Yanyan PubMed 42327780

Atopic dermatitis (AD) and rosacea have traditionally been regarded as two distinct inflammatory skin disorders with divergent pathophysiology. However, emerging evidence has progressively revealed unexpected convergences between these conditions in clinical manifestations, comorbidity profiles and pathogenic mechanisms-raising the question of whether the apparent mechanistic overlaps represent true...

Identification of circadian rhythm-associated key genes in metabolic dysfunction-associated fatty liver disease.

Clinical and experimental medicine · 22 June 2026 · Luo, Jinbo, Ma, Xiuying, Wang, Quanyu, Zhang, Ruyi et al. PubMed 42329455

As of now, current studies have confirmed that circadian rhythm genes (CRGs) can modulate the onset and development of metabolic dysfunction-associated fatty liver disease (MAFLD). Leveraging computational biology methodologies, systematic and thorough investigations into MAFLD and CRGs enhance our capacity to gain deeper insights into the disease's pathogenic mechanisms.

Early life stress and the pathogenesis of visceral hypersensitivity: mechanisms and implications for disorders of gut-brain interaction.

Frontiers in cell and developmental biology · 22 June 2026 · Tao, Enfu PubMed 42326011

Early life stress (ELS) is a major risk factor for disorders of gut-brain interaction (DGBIs), particularly irritable bowel syndrome (IBS), through the induction of persistent visceral hypersensitivity. This review synthesizes evidence from epidemiological studies, clinical observations, and preclinical models to establish ELS-induced visceral hypersensitivity as a core pathophysiological axis.

Chronic spontaneous cholinergic urticaria: advances in immunological mechanisms focusing on neuro-immune crosstalk and novel targeted therapeutic strategies.

Frontiers in immunology · 22 June 2026 · Yang, Meilv, Lin, Suxian, Lu, Yang, Jin, Huanzhi et al. PubMed 42327770

Chronic spontaneous cholinergic urticaria (CSU-Chol) is a chronic inflammatory skin disorder characterized by intense pruritus and small wheals triggered by a rise in core body temperature. This review aims to systematically elucidate its complex pathogenesis, with a particular focus on the pivotal role of neuro-immune crosstalk in disease initiation and progression.

Other post-viral and post-infectious syndromes 1 new

Full feed: Other post-viral research tracker

Immune metabolic remodeling during exercise rehabilitation: Linking skeletal muscle regeneration, bone homeostasis, and systemic immune adaptation.

Tissue & cell · 24 June 2026 · Wang, Fei, Qin, Wenjie PubMed 42335646

Exercise rehabilitation harnesses immune metabolic remodeling to drive coordinated skeletal muscle regeneration, bone homeostasis, and systemic immune adaptation. Physical activity functions as a controlled metabolic stressor that reprograms immune cell metabolism-shifting macrophages from glycolytic M1 to oxidative M2 phenotypes, expanding regulatory T cells through fatty acid oxidation and ketone body signaling...

No new studies this window for: PACVS.

Trial activity

ClinicalTrials.gov records whose registry entry was last updated between 22 June 2026 and 28 June 2026. A registry update can be anything from a status change to an edited contact field; status shown is as of the tracker snapshot.

NCTTrialStatusPhaseAgentsUpdated
NCT07388550Phase I Open-Label Safety Trial of Pembrolizumab for Neurological Post- Acute Sequelae of SARS-CoV-2 (PD1-PASC I)
Long COVID
Not Yet RecruitingPhase 1Keytruda2026-06-26
NCT05874037Fluvoxamine for Long COVID-19
Long COVID
CompletedPhase 2Fluvoxamine2026-06-25
NCT07546539Photobiomodulation in Chronic Fatigue Syndrome
ME/CFS
RecruitingNot applicablePhotobiomodulation2026-06-24
NCT04827992Evaluation of Medical Cannabis and Prescription Opioid Taper Support for Reduction of Pain and Opioid Dose in Patients With Chronic Non-Cancer Pain
Other post-viral
CompletedNot applicableCannabis, Prescription Opioid Taper Support2026-06-24
NCT05977179Dietary Intervention to Mitigate Post-Acute COVID-19 Syndrome
Long COVID
RecruitingNot applicableDietary Intervention To Mitigate Post-Acute Covid-19 Syndrome2026-06-23
NCT07661862PERCEIVE-Outreach: A Scalable, Risk-Based Model for Managing Persistent Cardiovascular Impact in Long COVID
Long COVID
RecruitingNot applicablePerceive-Outreach Intervention2026-06-22
NCT07655375Study Evaluating the Effect of UCB8600 on Mast Cell Activation in the Human Gut
MCAS, Other post-viral
Not Yet RecruitingNot applicableSample Collection2026-06-22
NCT06231238Balance Acceptance and Commitment Therapy for Long COVID
Long COVID
Active Not RecruitingNot applicableBalance Acceptance And Commitment Therapy2026-06-22
NCT04542161Assessment of N-Acetylcysteine as Therapy for Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
ME/CFS
Active Not RecruitingPhase 2N-Acetylcysteine (NAC)2026-06-22

Browse all tracked trials: clinical trials tracker.

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Cite this issue

Open Source Medicine Foundation. Post-viral research digest, week 26 2026: 45 new studies. Published 28 June 2026. https://research.opensourcemed.info/digest/2026-W26.html

Issues are regenerated from the live tracker data within their week and frozen afterwards; the snapshot behind this page is at data/2026-W26.json.

Disclaimer. This digest is an automated, unreviewed listing of newly indexed PubMed records and ClinicalTrials.gov registry updates compiled by the Open Source Medicine Foundation. Inclusion is not endorsement; abstracts are excerpted verbatim from PubMed and may contain errors. It is not medical advice. Discuss any treatment decision with a qualified clinician.