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- Ahmed, Aisha S., et al.
(author)
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Activation of NF-kappa B in Synovium versus Cartilage from Patients with Advanced Knee Osteoarthritis : A Potential Contributor to Inflammatory Aspects of Disease Progression
- 2018
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In: Journal of Immunology. - : AMER ASSOC IMMUNOLOGISTS. - 0022-1767 .- 1550-6606. ; 201:7, s. 1918-1927
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Journal article (peer-reviewed)abstract
- The aim was to assess the activation and association of the NF-kappa B system across synovial membrane (SM) and articular cartilage (AC) in patients with knee osteoarthritis (OA) and ascertain its potential effects on catabolic mediator expression in advanced OA. SM and AC were obtained from 40 OA patients undergoing total knee arthroplasty and from 19 postmortem control subjects. NF-kappa B subunit RelA in nuclear and cytosolic fractions and NF-kappa B1-DNA binding in nuclear extracts was assessed by ELISA, whereas NFKB1, RELA, IL-8, IL-6, and MMP3 gene expression were analyzed by reverse transcriptase-quantitative PCR in tissues. We observed higher SM nuclear RelA protein levels and upregulated NF-kappa B1-DNA binding in OA patients compared with postmortem controls. However, in AC, lower nuclear RelA levels were observed compared with cytosolic extracts in patients. Nuclear RelA levels correlated positively with NF-kappa B1-DNA binding in SM and AC in patients. SM RELA and MMP3 mRNA levels were upregulated, whereas IL-8 and IL-6 as well as AC RELA were downregulated in patients compared with controls. In SM, nuclear RelA levels correlated positively with MMP3 gene expression in patients. A negative correlation was observed between SM nuclear RelA levels and AC NF-kappa B1-DNA binding, and SM nuclear NF-kappa B1-DNA binding correlated negatively with AC MMP3 and NFKB1 mRNA levels in patients. These findings highlight NF-kappa B-triggered cross-talk and feedback mechanisms between SM and AC in OA. Further, our findings strongly support a role for an activated NF-kappa B system in the transcriptional mechanism of inflammatory processes, especially in SM of patients with advanced OA.
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- Gedin, Per I.
(author)
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De två kulturerna
- 2020. - 500
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Book (pop. science, debate, etc.)
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Strindbergiana : Tjugonionde samlingen
- 2014
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Editorial collection (other academic/artistic)abstract
- Staffan Westerberg tampas med August. Anna Pettersson beskriver arbetet med sin uppmärksammade uppsättning av Fröken Julie. Maksim Gorkij och Strindberg. Årets samling innehåller också presentationer av anarkisten Emma Goldmanns, respektive djurrättsaktivisten och feministen Lizzy Lind af Hagebys tidiga verk om Strindberg samt av Franz Kafkas förhållande till "den väldige Strindberg", en översikt av Shakespeares stora betydelse för den svenske dramatikern och en diskussion om Strindberg som sälskapsmänniska. Vidare: "Ädelrötan" – en analys av Strindberg och slarvet, samt en studie av Strindbergs plantering av den praktfulla militärorchis i havsbandet.
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