Transglutaminase (TGase) activity in the cytosol fraction of the mouse liver increased following intraperitoneal injection of retinoic acid. Retinoic acid inhibited the carbon tetrachloride-induced increase in serum alanine transaminase activity. These findings suggest that TGase is involved in the effect of retinoic acid on carbon tetrachloride-induced liver damage.
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Contemp Clin Trials
January 2025
Department of Chest Diseases (Internal Medicine), Faculty of medicine, Suez Canal University, Ismailia, Egypt.
The pandemic of SARS-CoV2 is not only limited to the health issues and fatalities encountered in a worldwide overwhelming burden but also the social, economic, and well-being devastation. Many trials were done to find a safe and reliable therapy for COVID-19. Isotretinoin was reported as a possible therapy for COVID-19 through the mining of post-transcriptomic and genomic datasets, which revealed isotretinoin as a potent down-regulator of the ACE2 protein the crucial gateway of SARS-CoV2 to hijack host cells.
View Article and Find Full Text PDFJ Oral Biosci
January 2025
Dental Science Research Institute, School of Dentistry, Chonnam National University, Gwangju, Korea. Electronic address:
Objectives: We investigated the involvement of FOXO3a in lipopolysaccharide (LPS)-induced inflammation in primary human dental pulp cells (HDPCs).
Methods: HDPCs that were isolated from donors undergoing tooth extraction for orthodontic purposes were cultured with or without 1 μg/mL LPS at various intervals. The FOXO3a localization in the HDPCs was verified using immunofluorescence.
Toxicol Res (Camb)
February 2025
Département Toxicologie et Biométrologie, Institut National de Recherche et de Sécurité pour la prévention des accidents du travail et des maladies professionnelles (INRS), 1 rue du Morvan, 54519 Vandœuvre-lès-Nancy, France.
In many industrial activities, workers may be exposed by inhalation to particles that are aerosolized, To predict the human health hazard of these materials, we propose to develop a co-culture model (macrophages, granulocytes, and alveolar epithelial cells) designed to be more representative of the inflammatory pulmonary response occurring in vivo. Phorbol 12-myristate 13-acetate (PMA)-differentiated THP-1 cells were used as macrophages, All-trans retinoic acid (ATRA)-differentiated HL60 were used as granulocytes and A549 were used as epithelial alveolar type II cells. A crystalline silica sample DQ12 was used as a prototypical particle for its capabilities to induce DNA damage, inflammatory response, and oxidative stress in epithelial cells; its polyvinylpyridine-N-oxide (PVNO)-surface modified counterpart was also used as a negative particulate control.
View Article and Find Full Text PDFScand J Immunol
January 2025
LEO Foundation Skin Immunology Research Center, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
The effects of vitamin D and vitamin A in immune cells are mediated through the vitamin D receptor (VDR) and retinoic acid receptor (RAR), respectively. These receptors share the retinoid X receptor (RXR) co-factor for transcriptional regulation. We investigated the effects of active vitamin D (1,25(OH)D) and 9-cis retinoic acid (9cRA) on T helper (T)1 and T2 cytokines and transcription factors in primary human blood-derived CD4 T cells.
View Article and Find Full Text PDFArch Dermatol Res
January 2025
Department of Dermatology, Hitit University, Erol Olçok Training and Research Hospital, Çorum, Türkiye.
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