{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T06:02:21Z","timestamp":1789970541286,"version":"4.0.1"},"reference-count":28,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T00:00:00Z","timestamp":1789948800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Pediatr."],"abstract":"<jats:sec>\n                    <jats:title>Introduction<\/jats:title>\n                    <jats:p>There is a clinical contradiction between postoperative analgesia and gastrointestinal functional recovery following intestinal ischemia-reperfusion (I\/R) injury.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>In this study, a reactive oxygen species (ROS)-responsive nanoplatform (LA-CLX-NP) was constructed by conjugating DSPE-PEG with \u03b1-lipoic acid (LA) followed by self-assembly and encapsulation of celecoxib.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The nanoparticles exhibited uniform size, good stability, and ROS\/pH dual-responsive drug release properties.\n                      <jats:italic>In vitro<\/jats:italic>\n                      , LA-CLX-NP was efficiently internalized by macrophages and, compared with free drugs, more effectively scavenged ROS, restored redox balance, and modulated inflammatory cytokines. In a mouse model of intestinal I\/R injury, LA-CLX-NP significantly reduced diarrhea incidence, increased mechanical withdrawal threshold, decreased abdominal licking and scratching behaviors, preserved ZO-1 tight junctions, suppressed COX-2 overexpression, and normalized serum cytokine profiles, with superior efficacy to single agents.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>This strategy achieves on-demand delivery of celecoxib to the inflamed intestine, exerts synergistic anti-inflammatory and antioxidant effects, and thereby reconciles effective pain relief with rapid gastrointestinal recovery, offering a new approach for postoperative management of intestinal I\/R injury.<\/jats:p>\n                  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