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Lang X, Xu L, Li L, Feng X. The Mechanism of Catalpol to Improve Oxidative Damage of Dermal Fibroblasts Based on Nrf2/HO-1 Signaling Pathway. Drug Des Devel Ther 2024; 18:2287-2297. [PMID: 38915869 PMCID: PMC11194171 DOI: 10.2147/dddt.s467569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Accepted: 06/08/2024] [Indexed: 06/26/2024] Open
Abstract
Objective Catalpol, as a natural medicine small-molecule drug, has been proven to have anti-inflammatory and antioxidant pharmacological effects. Methods The effect of catalpol on oxidative damage of mouse epidermal fibroblast L929 model and its mechanism were investigated by using hydrogen peroxide model, CCK8 method, flow cytometry, and Western blot. Results The effect of catalpol on Nrf2/HO-1 signaling pathway was further studied to improve oxidative stress in cell models. The results showed that catalpol had no cytotoxicity to L929 cells, and inhibited the apoptosis of L929 cells after oxidative damage in a concentration-dependent manner, thus playing a role in cell protection. The oxidative damage of cells was inhibited by up-regulating the expression of the signature protein of Nrf2/HO-1 signaling pathway and inhibiting the interstitial formation of cells. Conclusion This study is a preliminary study on the protective function of catalpol against oxidation and apoptosis in dermal fibroblasts, which can provide a theoretical basis and drug guidance for promoting skin wound healing in the later stage.
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Affiliation(s)
- Xiaona Lang
- Pharmacy Department, Tianjin Hospital, Tianjin, People’s Republic of China
| | - Liyan Xu
- Orthopedic Department, Tianjin Hospital, Tianjin, People’s Republic of China
| | - Lu Li
- Pharmacy Department, Tianjin Hospital, Tianjin, People’s Republic of China
| | - Xin Feng
- Pharmacy Department, Tianjin Hospital, Tianjin, People’s Republic of China
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Le Bars P, Kouadio AA, Amouriq Y, Bodic F, Blery P, Bandiaky ON. Different Polymers for the Base of Removable Dentures? Part II: A Narrative Review of the Dynamics of Microbial Plaque Formation on Dentures. Polymers (Basel) 2023; 16:40. [PMID: 38201705 PMCID: PMC10780608 DOI: 10.3390/polym16010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 12/04/2023] [Accepted: 12/08/2023] [Indexed: 01/12/2024] Open
Abstract
This review focuses on the current disparities and gaps in research on the characteristics of the oral ecosystem of denture wearers, making a unique contribution to the literature on this topic. We aimed to synthesize the literature on the state of current knowledge concerning the biological behavior of the different polymers used in prosthetics. Whichever polymer is used in the composition of the prosthetic base (poly methyl methacrylate acrylic (PMMA), polyamide (PA), or polyether ether ketone (PEEK)), the simple presence of a removable prosthesis in the oral cavity can disturb the balance of the oral microbiota. This phenomenon is aggravated by poor oral hygiene, resulting in an increased microbial load coupled with the reduced salivation that is associated with older patients. In 15-70% of patients, this imbalance leads to the appearance of inflammation under the prosthesis (denture stomatitis, DS). DS is dependent on the equilibrium-as well as on the reciprocal, fragile, and constantly dynamic conditions-between the host and the microbiome in the oral cavity. Several local and general parameters contribute to this balance. Locally, the formation of microbial plaque on dentures (DMP) depends on the phenomena of adhesion, aggregation, and accumulation of microorganisms. To limit DMP, apart from oral and lifestyle hygiene, the prosthesis must be polished and regularly immersed in a disinfectant bath. It can also be covered with an insulating coating. In the long term, relining and maintenance of the prosthesis must also be established to control microbial proliferation. On the other hand, several general conditions specific to the host (aging; heredity; allergies; diseases such as diabetes mellitus or cardiovascular, respiratory, or digestive diseases; and immunodeficiencies) can make the management of DS difficult. Thus, the second part of this review addresses the complexity of the management of DMP depending on the polymer used. The methodology followed in this review comprised the formulation of a search strategy, definition of the inclusion and exclusion criteria, and selection of studies for analysis. The PubMed database was searched independently for pertinent studies. A total of 213 titles were retrieved from the electronic databases, and after applying the exclusion criteria, we selected 84 articles on the possible microbial interactions between the prosthesis and the oral environment, with a particular emphasis on Candida albicans.
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Affiliation(s)
- Pierre Le Bars
- Department of Prosthetic Dentistry, Faculty of Dentistry, Nantes University, 1 Place Alexis Ricordeau, F-44042 Nantes, France; (A.A.K.); (Y.A.); (F.B.); (P.B.)
- Nantes University, Oniris, University of Angers, CHU Nantes (Clinical Investigation Unit Odontology), INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France;
| | - Alain Ayepa Kouadio
- Department of Prosthetic Dentistry, Faculty of Dentistry, Nantes University, 1 Place Alexis Ricordeau, F-44042 Nantes, France; (A.A.K.); (Y.A.); (F.B.); (P.B.)
- Department of Prosthetic Dentistry, Faculty of Dentistry, CHU, Abidjan P.O. Box 612, Côte d’Ivoire
| | - Yves Amouriq
- Department of Prosthetic Dentistry, Faculty of Dentistry, Nantes University, 1 Place Alexis Ricordeau, F-44042 Nantes, France; (A.A.K.); (Y.A.); (F.B.); (P.B.)
- Nantes University, Oniris, University of Angers, CHU Nantes (Clinical Investigation Unit Odontology), INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France;
| | - François Bodic
- Department of Prosthetic Dentistry, Faculty of Dentistry, Nantes University, 1 Place Alexis Ricordeau, F-44042 Nantes, France; (A.A.K.); (Y.A.); (F.B.); (P.B.)
- Nantes University, Oniris, University of Angers, CHU Nantes (Clinical Investigation Unit Odontology), INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France;
| | - Pauline Blery
- Department of Prosthetic Dentistry, Faculty of Dentistry, Nantes University, 1 Place Alexis Ricordeau, F-44042 Nantes, France; (A.A.K.); (Y.A.); (F.B.); (P.B.)
- Nantes University, Oniris, University of Angers, CHU Nantes (Clinical Investigation Unit Odontology), INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France;
| | - Octave Nadile Bandiaky
- Nantes University, Oniris, University of Angers, CHU Nantes (Clinical Investigation Unit Odontology), INSERM, Regenerative Medicine and Skeleton, RMeS, UMR 1229, F-44000 Nantes, France;
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