Objective: Myelomeningocele (MMC) is one of the most common reason of neurogenic bladder dysfunction in children. Although neurogenic bladder dysfunction occurrence is related with bladder innervation, also there are some changes seen in the smooth muscle and neural cells of the bladder. Interstitial cells of Cajal (ICC) are the pacemaker cells found in organs with peristaltic activity. Although it has been shown that ICC are diminished in the rat urinary bladder with traumatic spinal cord injury, there is no data about ICC in fetal rat bladders with MMC. This study has been conducted to investigate the ICC in the bladders of fetal rats with retinoic acid induced MMC.
Materials And Methods: Time dated pregnant Wistar albino rats were divided into 3 groups. In MMC group, dams were fed with gavage solution containing 60 mg/kg all-trans retinoic acid dissolved in olive oil on 10. embryologic day. Sham group animals were fed only olive oil. Control group dams were fed with standard rat chow. Fetuses were delivered by cesarean section and harvested on 22. embryologic day. MMC was identified by observing MMC sacs at the back of the fetuses. Distribution of ICCs were evaluated using immunohistochemical staining.
Results: ICCs were found in all groups, which have the same morphological features that had been described earlier in the gastrointestinal tract and the bladder. The density of the ICC in the MMC group was found to be significantly decreased when compared with the control and the sham groups (p<0.05).
Conclusion: The density of the ICC in the urinary bladder decreased in the neurogenic bladder developed in MMC.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5125744 | PMC |
http://dx.doi.org/10.5152/tud.2016.98474 | DOI Listing |
J 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.
Curr Mol Med
January 2025
Department of Neonatology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen 518020, Guangdong, China.
Objective: This study aimed to investigate the roles of Mucin 1 (MUC1), the PI3K/AKT pathway, and enterocyte apoptosis in Necrotizing Enterocolitis (NEC).
Methods: Using an NEC Caco-2 cell model, retinoic acid treatment and MUC1 gene silencing were employed. Flow cytometry was used to assess apoptosis, while quantitative PCR and western blot analyses were conducted to evaluate the gene and protein expressions of MUC1, PI3K, Akt, and factors related to apoptotic modulation.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!