Nixa Sedes, MD
@nixassedes.bsky.social
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Reposted by Nixa Sedes, MD
diabetologiajnl.bsky.social
This article demonstrates that opioid prescription for painful diabetic peripheral neuropathy leads to structural and functional alterations in dopaminergic pathways within the brain #DiabetesResearch #Neuropathy link.springer.com/article/10.1... 🔓
Beyond pain relief: the effects of chronic opioid use on brain structure and function in diabetic neuropathy—a multimodal neuroimaging study - Diabetologia
Aims/hypothesis Despite being commonly prescribed to treat painful diabetic peripheral neuropathy (DPN), the impact on the brain of long-term opioid use as analgesia is unknown. The aim of this study was to determine the structural and functional brain alterations associated with prescription opioid use in a large cohort of people with painful DPN. Methods A total of 82 patients with diabetes were enrolled: 57 with painful DPN (18 with long-term opioid prescription [O+ individuals] and 39 who were not prescribed opioids [O− individuals]) and a control group of 25 patients with diabetes but without DPN (no DPN) matched for age (± 2 years), sex and type of diabetes. All participants underwent detailed clinical/neurophysiological assessment and brain MRI at 3 T, and a subset (14 in each group, n=42) also underwent resting-state functional MRI. Results O+ individuals had greater caudate volume (ANOVA, p=0.03) compared with O− individuals (p=0.03) and those with no DPN (p=0.01). Functional connectivity was lower between the caudate and thalamus (r β = −0.24, seed-level correction −3.9, pFDR ≤0.05) in O+ individuals compared to those with no DPN. Moreover, seed-to-voxel analysis using caudate as the seed showed a significantly lower functional connectivity in O+ individuals compared with O− individuals in a cluster encompassing the superior frontal gyri bilaterally. Conclusions/interpretation We demonstrate that disruption of dopaminergic pathways occurs within the brain when opioids are used for analgesic purposes for painful DPN, which may reflect alterations in reward systems. This study has important clinical implications, as the measures of dopaminergic pathways found in this study may represent neuroimaging biomarkers that could be used to diagnose and monitor the negative consequences of prescription opioid use. Graphical Abstract
link.springer.com
Reposted by Nixa Sedes, MD
allergy-eaaci.bsky.social
🌟One of the most appreciated/liked articles in the social media of Allergy published in 2025:

Basophil Activation Test: Bridging #Allergy and #Oncology for Diagnostic, Therapeutic and Prognostic Applications in AllergoOncology: An #EAACI Position Paper 👉 doi.org/10.1111/all.16607

#Allergy_journal
Pascal, M., Chauhan, J., Knol, E.,  et al. Basophil Activation Test: Bridging Allergy and Oncology for Diagnostic, Therapeutic and Prognostic Applications in AllergoOncology: An EAACI Position Paper
nixassedes.bsky.social
Design and Manufacturing of Piezoelectric Biomaterials for Bioelectronics and Biomedical Applications🔓 | Chemical Reviews pubs.acs.org/doi/10.1021/...
Design and Manufacturing of Piezoelectric Biomaterials for Bioelectronics and Biomedical Applications
The piezoelectric effect enables the conversion between electrical and mechanical energy, making it essential across various fields. While synthetic piezoelectric ceramics and polymers are extensively utilized in electronics and biomedicine, their inherent rigidity, fragility, processing challenges, toxicity, and nondegradability limit their potential. In contrast, piezoelectric biomaterials offer a promising alternative for biomedical fields because of their natural biocompatibility, biodegradability, and environmental friendliness. However, weak piezoelectricity and challenges in large-scale fabrication hinder their applications. This paper critically reviews recent advances in piezoelectric biomaterials, focusing primarily on design strategies and manufacturing methods. We first summarize the principles, advantages, and categories of a variety of piezoelectric biomaterials. Next, we explore computational studies, highlight emerging approaches in molecular engineering and manufacturing, and examine their cutting-edge applications in bioelectronics and biomedicine. Additionally, we evaluate the effectiveness of various design and manufacturing approaches in enhancing piezoelectric performance, outlining their respective advantages and limitations. Finally, we discuss key challenges and provide insights into computational modeling, fabrication techniques, characterization methods, and biomedical applications to guide future research.
pubs.acs.org
Reposted by Nixa Sedes, MD
ioppublishing.bsky.social
Researchers have introduced a method to extend the reach of gravitational wave detection! Using cutting-edge optical cavity systems and atomic clock technologies, mid-range gravitational waves will now be detectable. How will this revolutionize #astrophysics? https://ow.ly/I3at50X8564 #quantum