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Preclinical evaluation of the efficacy and safety of AAV8-TNAP-D10 in Alpl-/- and AlplPrx1/Prx1 mouse models for the treatment of early and late-onset hypophosphatasia.
J Bone Miner Res
January 2025
Human Genetics Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States.
We previously documented successful resolution of skeletal and dental disease in the infantile and late-onset murine models of hypophosphatasia (HPP), with a single injection of an adeno-associated serotype 8 vector encoding mineral-targeted TNAP (AAV8-TNAP-D10). Here, we conducted dosing studies in both HPP mouse models. A single escalating dose from 4x108 up to 4x1010 (vg/b) was intramuscularly injected into 4-day-old Alpl-/- mice (an infantile HPP model) and a single dose from 4x106 up to 4x109 (vg/b) was administered to 8-week-old AlplPrx1/Prx1 mice (a late-onset HPP model).
View Article and Find Full Text PDFInhibition of RIPK1-driven necroptosis ameliorates inflammatory hyperalgesia caused by lipopolysaccharide: involvement of TLR-, NLRP3-, and caspase-11-mediated signaling pathways.
Cell Mol Biol (Noisy-le-grand)
January 2025
Department of Pharmacology, Faculty of Pharmacy, Mersin University, Mersin, Türkiye.
Article Synopsis
- Recent research indicates that blocking the RIPK1/RIPK3/MLKL necrosome can help reduce inflammatory pain linked to conditions like demyelination in the central nervous system.
- This study tests necrostatin-1s (Nec-1s), a specific RIPK1 inhibitor, on LPS-induced inflammatory pain in male mice, assessing pain sensitivity through hot plate tests and examining related protein changes.
- Results show that Nec-1s not only prevents LPS-induced pain relief but also reverses the activation of key proteins and signals involved in inflammation and demyelination, suggesting that RIPK1 inhibitors could be a promising treatment for managing inflammatory pain.
Investigating intrauterine exposure to methamphetamine on serine-threonine kinase pathway in male rat testis.
Cell Mol Biol (Noisy-le-grand)
January 2025
Department of Physiology, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
Article Synopsis
- Intrauterine exposure to methamphetamine (METH) during pregnancy negatively impacts testicular development in offspring, leading to apoptosis in spermatids.
- Research focused on proteins involved in sperm growth pathways, particularly TSSK and RIPK2, showing significant changes in their expression levels due to METH exposure.
- Findings indicated that METH exposure resulted in decreased TSSK expression, increased RIPK2 expression, thinner germ layers, more inflammatory cells, and a reduction in the thickness of seminiferous tubules in rat testes.
Dipyridamole Attenuates Experimental Periodontitis by Regulating M1 Macrophage Polarization via PKA/PKG Pathways.
J Periodontal Res
January 2025
Hospital of Stomatology, Sun Yat-Sen University, Guangzhou, China.
Aim: Periodontitis is a chronic inflammatory disease initiated by dysbiosis of the local microbial community. As a non-specific phosphodiesterase inhibitor, dipyridamole features anti-oxidant and anti-inflammatory properties. This study aimed to investigate the effects of dipyridamole in an experimental rat model of periodontitis.
View Article and Find Full Text PDF[Research advances in the mechanism of Toll-like receptor 4 mediated intestinal injury and inflammatory response in necrotizing enterocolitis].
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi
January 2025
Department of Neonatology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China. *Corresponding author, E-mail:
Necrotizing enterocolitis (NEC) is an intestinal inflammatory and necrotic disease seen in premature infants, and remains the leading cause of death resulted from gastrointestinal diseases in premature infants. The specific pathogenesis of NEC is still unclear. In recent years, a lot of studies have reported that Toll-like receptor 4 (TLR4) plays a key role in the pathogenesis of NEC.
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