Volume 30, Issue 172, June 2026 (Forthcoming Issue)

About the Cover

Background: Changes in the composition and function of the gut microbiota are associated with metabolic disorders, including lowered insulin sensitivity. Simple insulin resistance indices, such as HOMA-IR and TyG, are commonly used in population studies. Objective: A synthetic presentation of the evidence linking the gut microbiota with insulin resistance, as well as a discussion of biological mechanisms and clinical implications. Methods: This is a narrative review that includes observational and cohort studies, mechanistic studies, and microbiotamodulating interventions (e.g., supplementation, fecal transplants, and dietary interventions). Studies investigating the relationships between the microbiota profile, metabolome, and HOMA-IR and TyG values were included. Results: Various studies have shown a consistent association between specific changes in the microbiome and higher HOMA-IR and TyG values. Research has also suggested that microbial metabolites can cause insulin resistance, disrupted gut barrier function, and/or endotoxemia. Preliminary microbiota-modulating interventions show improvements in metabolic parameters; however, most trials are small and short-term. Conclusions: An integrated analysis of insulin resistance and its connections to the microbiota and metabolome can help clarify mechanisms and identify possible therapeutic targets. Further long-term studies are needed.

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REVIEW

Gut microbiota and insulin resistance - mechanisms and clinical evidence: A review of biological mechanisms, as well as observational and interventional evidence

Natalia Kursa, Katarzyna Bielak, Adam Brożyna, Agnieszka Mackiewicz, Julia Witkowska, Krystian Woźniak, Ksenia Jakubiak, Mikołaj Kurczyński, Monika Krasoń, Aleksandra Pietrucień

Background: Changes in the composition and function of the gut microbiota are associated with metabolic disorders, including lowered insulin sensitivity. Simple insulin resistance indices, such as HOMA-IR and TyG, are commonly used in population studies

Medical Science, 2026, 30, e94ms3877

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The Effects of β2-Adrenergic Agonists on Skeletal Muscle Hypertrophy: A Narrative Review

Krystian Woźniak, Julia Witkowska, Monika Krasoń, Mikołaj Kurczyński, Ksenia Jakubiak, Natalia Kursa, Agnieszka Mackiewicz, Aleksandra Pietrucień, Katarzyna Bielak, Adam Brożyna

β2-adrenergic agonists (β2-mimetics) are widely used to treat pulmonary diseases such as asthma and chronic obstructive pulmonary disease (COPD), yet strong evidence indicates that they also affect skeletal muscle metabolism and growth.

Medical Science, 2026, 30, e95ms3891

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CASE REPORT

Recurrence of central serous chorioretinopathy following laser therapy - case report

Daria Valipur Kolti, Julia Kierner, Dariusz Valipur Kolti, Dominik Chrzanowski, Kacper Cholewiński

Introduction: Serous separation of the neurosensory retina is a hallmark of central serous chorioretinopathy. It is mainly caused by choroidal vascular dysfunction, which consequently leads to retinal pigment epithelium damage.

Medical Science, 2026, 30, e96ms3868

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REVIEW

Suzetrigine in Acute Pain Treatment: A Review of Current Evidence and Future Directions

Zofia Leżańska, Joanna Sowińska, Mateusz Kwiatkowski, Karolina Siemińska, Katarzyna Marcinkowska, Natalia Paluszkiewicz, Sandra Bryg, Aleksandra Cieślak, Sara Demkow, Emil Pałyga

Introduction: Acute pain is a constant reality in clinical practice. Patients come in because of their pain, surgeons cause it to happen, and a significant part of the care after surgery involves managing this pain

Medical Science, 2026, 30, e97ms3898

Abstract | PDF