Oleuropein (OLE) is the major phenolic secoiridoid of olive tree leaves, and its antioxidant and anti-inflammatory activities have been demonstrated in in vitro and in vivo animal models. The aim of this study was to investigate the activity of OLE in the colonic mucosa from patients with ulcerative colitis (UC). Biopsies obtained during colonoscopy from 14 patients with active UC were immediately placed in an organ culture chamber and challenged with lipopolysaccharide from Escherichia coli (EC-LPS) at 1 μg/mL in the presence or absence of 3 mM OLE. The expression of cyclooxygenase (COX)-2 and interleukin (IL)-17 was assessed in total protein extracts from treated colonic biopsies by Western blotting. Levels of IL-17 were also measured in culture supernatant by ELISA. A microscopic evaluation of the cultured biopsies was performed by conventional histology and immunohistochemistry. The expression of COX-2 and IL-17 were significantly lower in samples treated with OLE + EC-LPS compared with those treated with EC-LPS alone (0.80 ± 0.15 arbitrary units (a.u.) vs. 1.06 ± 0.19 a.u., p = 0.003, and 0.71 ± 0.08 a.u. vs. 1.26 ± 0.42 a.u., p = 0.03, respectively) as were the levels of IL-17 in culture supernatants of OLE + EC-LPS treated colonic samples (21.16 ± 8.64 pg/mL vs. 40.67 ± 9.24 pg/mL, p = 0.01). Histologically, OLE-treated colonic samples showed an amelioration of inflammatory damage with reduced infiltration of CD3, CD4, and CD20 cells, while CD68 numbers increased. The anti-inflammatory activity of OLE was demonstrated in colonic biopsies from UC patients. These new data support a potential role of OLE in the treatment of UC.

Background: Spasticity is a common feature of Upper Motoneuron Syndrome and is frequently treated with intrathecal baclofen (ITB) when oral therapy is ineffective or poorly tolerated. Different baclofen formulations are available for intrathecal use, but evidence regarding their clinical equivalence in patients requiring high daily doses remains limited. Methods: Thirty adult patients (mean age 37 ± 5.8 years) receiving long-term ITB therapy were switched from four vials of baclofen 10 mg/5 mL to a single vial of baclofen 40 mg/20 mL, while maintaining the same total drug amount and reservoir concentration. Patients were divided into two groups: in 15 patients, the daily baclofen dose was maintained unchanged, while in the remaining 15 patients a 10% dose reduction was attempted. Clinical outcomes were assessed at baseline and during follow-up using validated scales for spasticity, pain, and functional status. Results: In patients with unchanged daily dosing, no clinically relevant differences were observed in spasticity, pain, or functional independence after switching formulation, supporting clinical equivalence between the two preparations. Conversely, the 10% dose reduction proved clinically unsustainable in patients requiring high daily doses and required restoration of baseline dosing in all cases. No adverse events or formulation-related complications were observed. Conclusions: Switching to baclofen 40 mg/20 mL is safe and clinically equivalent to the conventional 10 mg/5 mL formulation when the daily dose is maintained unchanged. Dose reduction appears unsuitable in patients requiring high daily intrathecal baclofen doses.