1
|
Hosseinzadeh A, Jamshidi Naeini A, Sheibani M, Gholamine B, Reiter RJ, Mehrzadi S. Melatonin and oral diseases: possible therapeutic roles based on cellular mechanisms. Pharmacol Rep 2024; 76:487-503. [PMID: 38607587 DOI: 10.1007/s43440-024-00593-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/29/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024]
Abstract
Oral diseases, including periodontal disorders, oral cancer, periodontitis, and mucositis are the major challenges for both patients and healthcare providers. These conditions often involve inflammation, oxidative stress, and impaired cellular processes, leading to symptoms ranging from discomfort to severe debilitation. Conventional treatments for such oral diseases exhibit constraints, prompting the investigation of innovative therapeutic approaches. Considering the anti-inflammatory, anti-oxidant, and anti-cancer effects of melatonin, this study was carried out to investigate the potential protective effects of melatonin in mitigating the severity of oral diseases. Studies indicate that melatonin influences the differentiation of periodontal stem cells, inhibits oral cancer progression, reduces inflammation associated with periodontitis, and alleviates the severity of oral mucositis. Melatonin has demonstrated potential efficacy in both preclinical and clinical investigations; however, findings are frequently heterogeneous and contingent upon contextual factors. This review provides a comprehensiveoverview of current state of knowledge in this domain, elucidating the multifaceted role that melatonin may assume in combatingoral diseases. Further research should be directed toward determining the most effective dosing, timing, and administration methods for melatonin-based therapies for oral diseases.
Collapse
Affiliation(s)
- Azam Hosseinzadeh
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Jamshidi Naeini
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Sheibani
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Pharmacology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Babak Gholamine
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Russel J Reiter
- Department of Cell Systems and Anatomy, UT Health San Antonio, San Antonio, TX, USA
| | - Saeed Mehrzadi
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
2
|
Tokpinar A, Nisari M, Yilmaz S, Yay A, Yildiz OG, Balcioğlu E, Alişan P, Bilgici P, Uçar S, Ateş Ş, Bağci K. The effect of ionizing radiation on the fetal bone development in pregnant rats: Role of melatonin. Microsc Res Tech 2024; 87:95-104. [PMID: 37705325 DOI: 10.1002/jemt.24414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 08/10/2023] [Accepted: 08/26/2023] [Indexed: 09/15/2023]
Abstract
Radiation has been widely used in many business sectors over the last century. Our study investigated the possible teratogenic effects of radiation on the bones of rat fetuses and the protective effect of melatonin against these effects. In this study, 15 pregnant female Wistar albino rats were used. These rats were divided into four groups: the control group, melatonin group (10 mg/kg/day), radiation group (0.5 gray), radiation (0.5 gray) + melatonin group (10 mg/kg/day), and sham group (1 mm hanks/day). The skeletal system development of fetuses was examined with double skeletal and scanning electron microscope (SEM), histopathological methods. In our study, fetal weight, placental weight, and fetal morphometric values were found to be statistically significantly decreased in the radiation group compared to the control group (p < .05). In immünohistochemistry (IHC) analysis, alkaline phosphatase, and tartrate-resistant acid phosphatase) concentrations were found to be significantly lower in the radiation group compared to the other groups. In the SEM analysis, it was observed that the amount of calcium and sodium decreased when the radiation group was compared with the other groups. As a result, when exposed to ionizing radiation during pregnancy, melatonin has a protective feature against the negative effects of radiation on the bone development of fetuses. RESEARCH HIGHLIGHTS: In our study, fetuses obtained from pregnant rats exposed to ionizing radiation were examined. In this study, the effect of melatonin on bone development in fetuses exposed to gray ionizing radiation was investigated. There are few studies on our subject in the literature. We believe that our findings will contribute to other planned studies.
Collapse
Affiliation(s)
- Adem Tokpinar
- Department of Anatomy, Ordu University Faculty of Medicine, Ordu, Turkey
| | - Mehtap Nisari
- Department of Anatomy, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Seher Yilmaz
- Department of Anatomy, Yozgat Bozok University Faculty of Medicine, Yozgat, Turkey
| | - Arzu Yay
- Department of Embryology, Erciyes University Medicine Faculty Histology, Kayseri, Turkey
| | - Oğuz Galip Yildiz
- Department of Radiation Oncology, Erciyes University Medicine Faculty, Kayseri, Turkey
| | - Esra Balcioğlu
- Department of Embryology, Erciyes University Medicine Faculty Histology, Kayseri, Turkey
| | - Pınar Alişan
- Department of Embryology, Erciyes University Medicine Faculty Histology, Kayseri, Turkey
| | - Pınar Bilgici
- Department of Embryology, Erciyes University Medicine Faculty Histology, Kayseri, Turkey
| | - Sümeyye Uçar
- Department of Anatomy, Erciyes University Faculty of Medicine, Kayseri, Turkey
| | - Şükrü Ateş
- Department of Anatomy, Yozgat Bozok University Faculty of Medicine, Yozgat, Turkey
| | - Kezban Bağci
- Niğde Zübeyde Hanım Vocational School of Health Services, Niğde Ömer Halisdemir University, Niğde, Turkey
| |
Collapse
|
3
|
Sarac Gul Y, Kose O, Altin A, Yemenoglu H, Arslan H, Akyildiz K, Yilmaz A. Melatonin supports nonsurgical periodontal treatment in patients with Type 2 diabetes mellitus and periodontitis: A randomized clinical trial. J Periodontol 2023. [PMID: 38055628 DOI: 10.1002/jper.23-0335] [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: 06/02/2023] [Revised: 11/06/2023] [Accepted: 11/10/2023] [Indexed: 12/08/2023]
Abstract
BACKGROUND Diabetes mellitus (DM)-associated hyperinflammatory host response significantly provokes periodontal tissue destruction. In this context, the support of nonsurgical periodontal therapy in diabetics with host modulation agents is a current field of study. This clinical study aims to investigate the clinical efficacy of melatonin supplementation and discuss its possible biological mechanisms in nonsurgical periodontal treatment in patients with DM and periodontitis through some fundamental markers. METHODS In this randomized controlled and single-blind study, 27 of 55 diabetic patients with periodontitis (stage III/IV and grade C) underwent full-mouth scaling and root planing (fmSRP) alone and 28 patients underwent melatonin administration (6 mg daily, 30 days) in addition to fmSRP (full-mouth scaling and root planing plus melatonin, fmSRP-mel). The potential therapeutic contribution of melatonin was evaluated clinically and biochemically (gingival crevicular fluid RANKL, OPG, MMP-8, and serum IL-1β levels) at 3rd and 6th months. RESULTS Melatonin (tablet, 6 mg daily, 30 days) did not cause any local or systemic side effects. fmSRP alone resulted in significant reduction in serum IL-1β levels, pocket depths, gingival inflammation, and gingival crevicular fluid RANKL and MMP-8 levels (p < 0.05). Moreover, melatonin supplementation resulted in a more significant decrease in bleeding and pocket depth scores at probing, especially at 3 months (p < 0.05). Furthermore, RANKL and MMP-8 levels were significantly lower at 3 months and IL-1β levels at 6 months compared to the control group (p < 0.05). However, OPG levels were not affected significantly by the treatments (p > 0.05). CONCLUSION Melatonin, as a host modulation agent, significantly increases the clinical efficacy of fmSRP. The reduction in periodontal inflammation and pocket depths may be a result of marked suppression of RANKL-associated osteoclastogenesis and extracellular matrix damage by melatonin.
Collapse
Affiliation(s)
- Yagmur Sarac Gul
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Oguz Kose
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Ahmet Altin
- School of Dentistry, Department of Periodontology, Istanbul Kent University, Istanbul, Turkey
| | - Hatice Yemenoglu
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Hatice Arslan
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Kerimali Akyildiz
- School of Vocational Health Care Services, Department of Medical Services and Techniques, Recep Tayyip Erdogan University, Rize, Turkey
| | - Adnan Yilmaz
- School of Medicine, Department of Biochemistry, Recep Tayyip Erdogan University, Rize, Turkey
| |
Collapse
|
4
|
Aydemir Celep N, Kara H, Erbaş E, Doğan E. Radioprotective role of amifostine on osteointegration of titanium implants in the tibia of rats. J Vet Sci 2023; 24:e35. [PMID: 37271503 DOI: 10.4142/jvs.23023] [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: 01/23/2023] [Revised: 03/17/2023] [Accepted: 03/22/2023] [Indexed: 06/06/2023] Open
Abstract
BACKGROUND Titanium is the most widely used metal for bone integration, especially for cancer patients receiving ionizing radiation. This study aimed to investigate the amifostine administration that would reduce the effects of radiation on bone healing and osseointegration in rat models. OBJECTIVES It is aimed that the application of amifostine in rats receiving radiotherapy treatment will reduce the negative effects of ionizing radiation on the bone. METHODS Thirty-five adult male Wistar rats were randomly divided into one healthy and four experimental groups. In three consecutive days, two experimental groups of rats (AMF-RT-IMP and RT-IMP) were exposed to radiation (15 Gy/3 fractions of 5 Gy each). Then the titanium implants were inserted into the left tibia. Before the radiotherapy process, a 200 mg/kg dose of amifostine (AMF) was administered to the rats in the AMF-IMP and AMF-RT-IMP groups. Twenty-eight days after the screw implant, all rats were sacrificed, and their blood samples and tibia bones were collected for analysis. RESULTS The results indicated an accelerated bone formation and a more rapid healing process in the screw implants in the AMF-IMP, AMF-RT-IMP, and AMF-RT groups than in the RT-IMP group. Also, bone-implant contact area measurement and inflammation decreased with amifostine treatment in the implants subjected to irradiation (p < 0.05). CONCLUSIONS The results obtained in the present study suggested that amifostine prevents the losses of bone minerals, bone integrity, and implant position from ionizing-radiation when given before exposure.
Collapse
Affiliation(s)
- Nevra Aydemir Celep
- Ataturk University, Department of Medical Pharmacology, Erzurum 25240, Turkey
- Atatürk University, Faculty of Veterinary, Department of Histology and Embryology, Erzurum 25240, Turkey
| | - Hülya Kara
- Atatürk University, Faculty of Veterinary, Department of Anatomy, Erzurum 25240, Turkey
| | - Elif Erbaş
- Atatürk University, Faculty of Veterinary, Department of Histology and Embryology, Erzurum 25240, Turkey.
| | - Elif Doğan
- Kastamonu University, Faculty of Veterinary, Department of Surgery, Kastamonu 37200, Turkey
| |
Collapse
|
5
|
Wang C, Wang L, Wang X, Cao Z. Beneficial Effects of Melatonin on Periodontitis Management: Far More Than Oral Cavity. Int J Mol Sci 2022; 23:ijms232314541. [PMID: 36498871 PMCID: PMC9739298 DOI: 10.3390/ijms232314541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/17/2022] [Accepted: 11/19/2022] [Indexed: 11/24/2022] Open
Abstract
Periodontitis as a highly prevalent chronic infection/inflammatory disease can eventually lead to tooth loss and masticatory dysfunction. It also has a negative impact on general health and largely impairs quality of life. The tissue destruction during periodontitis is mainly caused by the excessive immune-inflammatory response; hence, how to modulate the host's reaction is of profound importance for effective periodontal treatment and tissue protection. Melatonin, as an endogenous hormone exhibiting multiple biological functions such as circadian rhythm regulation, antioxidant, and anti-inflammation, has been widely used in general healthcare. Notably, the past few years have witnessed increasing evidence for the application of melatonin as an adjunctive approach in the treatment of periodontitis and periodontitis-related systemic comorbidities. The detailed underlying mechanisms and more verification from clinical practice are still lacking, however, and further investigations are highly required. Importantly, it is essential to establish standard guidelines in the near future for the clinical administration of melatonin for periodontal health and general wellbeing.
Collapse
Affiliation(s)
- Chuan Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) & Key Laboratory of Oral Biomedicine Ministry of Education (KLOBME), School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Periodontology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Leilei Wang
- Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Xiaoxuan Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) & Key Laboratory of Oral Biomedicine Ministry of Education (KLOBME), School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Periodontology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
| | - Zhengguo Cao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST KLOS) & Key Laboratory of Oral Biomedicine Ministry of Education (KLOBME), School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Department of Periodontology, School & Hospital of Stomatology, Wuhan University, Wuhan 430079, China
- Correspondence:
| |
Collapse
|
6
|
Zhu L, Zhou C, Chen S, Huang D, Jiang Y, Lan Y, Zou S, Li Y. Osteoporosis and Alveolar Bone Health in Periodontitis Niche: A Predisposing Factors-Centered Review. Cells 2022; 11:3380. [PMID: 36359775 PMCID: PMC9657655 DOI: 10.3390/cells11213380] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 10/19/2022] [Accepted: 10/19/2022] [Indexed: 11/26/2023] Open
Abstract
Periodontitis is a periodontal inflammatory condition that results from disrupted periodontal host-microbe homeostasis, manifested by the destruction of tooth-supporting structures, especially inflammatory alveolar bone loss. Osteoporosis is characterized by systemic deterioration of bone mass and microarchitecture. The roles of many systemic factors have been identified in the pathogenesis of osteoporosis, including endocrine change, metabolic disorders, health-impaired behaviors and mental stress. The prevalence rate of osteoporotic fracture is in sustained elevation in the past decades. Recent studies suggest that individuals with concomitant osteoporosis are more vulnerable to periodontal impairment. Current reviews of worse periodontal status in the context of osteoporosis are limited, mainly centering on the impacts of menopausal and diabetic osteoporosis on periodontitis. Herein, this review article makes an effort to provide a comprehensive view of the relationship between osteoporosis and periodontitis, with a focus on clarifying how those risk factors in osteoporotic populations modify the alveolar bone homeostasis in the periodontitis niche.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Yuyu Li
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| |
Collapse
|
7
|
Abdel Nasser Atia G, Shalaby HK, Zehravi M, Ghobashy MM, Ahmad Z, Khan FS, Dey A, Rahman MH, Joo SW, Barai HR, Cavalu S. Locally Applied Repositioned Hormones for Oral Bone and Periodontal Tissue Engineering: A Narrative Review. Polymers (Basel) 2022; 14:polym14142964. [PMID: 35890740 PMCID: PMC9319147 DOI: 10.3390/polym14142964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/16/2022] [Accepted: 07/18/2022] [Indexed: 12/25/2022] Open
Abstract
Bone and periodontium are tissues that have a unique capacity to repair from harm. However, replacing or regrowing missing tissues is not always effective, and it becomes more difficult as the defect grows larger. Because of aging and the increased prevalence of debilitating disorders such as diabetes, there is a considerable increase in demand for orthopedic and periodontal surgical operations, and successful techniques for tissue regeneration are still required. Even with significant limitations, such as quantity and the need for a donor area, autogenous bone grafts remain the best solution. Topical administration methods integrate osteoconductive biomaterial and osteoinductive chemicals as hormones as alternative options. This is a promising method for removing the need for autogenous bone transplantation. Furthermore, despite enormous investigation, there is currently no single approach that can reproduce all the physiologic activities of autogenous bone transplants. The localized bioengineering technique uses biomaterials to administer different hormones to capitalize on the host’s regeneration capacity and capability, as well as resemble intrinsic therapy. The current study adds to the comprehension of the principle of hormone redirection and its local administration in both bone and periodontal tissue engineering.
Collapse
Affiliation(s)
- Gamal Abdel Nasser Atia
- Department of Oral Medicine, Periodontology, and Diagnosis, Faculty of Dentistry, Suez Canal University, Ismailia P.O. Box 41522, Egypt
- Correspondence: (G.A.N.A.); (H.K.S.); (H.R.B.); (S.C.)
| | - Hany K. Shalaby
- Department of Oral Medicine, Periodontology and Oral Diagnosis, Faculty of Dentistry, Suez University, Suez P.O. Box 43512, Egypt
- Correspondence: (G.A.N.A.); (H.K.S.); (H.R.B.); (S.C.)
| | - Mehrukh Zehravi
- Department of Clinical Pharmacy Girls Section, Prince Sattam Bin Abdul Aziz University, Al-Kharj 11942, Saudi Arabia;
| | - Mohamed Mohamady Ghobashy
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority, P.O. Box 8029, Cairo 13759, Egypt;
| | - Zubair Ahmad
- Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
- Biology Department, College of Arts and Sciences, Dehran Al-Junub, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
| | - Farhat S. Khan
- Biology Department, College of Arts and Sciences, Dehran Al-Junub, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia;
| | - Abhijit Dey
- Department of Life Sciences, Presidency University, Kolkata 700073, India;
| | - Md. Habibur Rahman
- Department of Global Medical Science, Wonju College of Medicine, Yonsei University, Wonju 26426, Korea;
| | - Sang Woo Joo
- School of Mechanical and IT Engineering, Yeungnam University, Gyeongsan 38541, Korea;
| | - Hasi Rani Barai
- School of Mechanical and IT Engineering, Yeungnam University, Gyeongsan 38541, Korea;
- Correspondence: (G.A.N.A.); (H.K.S.); (H.R.B.); (S.C.)
| | - Simona Cavalu
- Faculty of Medicine and Pharmacy, University of Oradea, Piata 1 Decembrie 10, 410087 Oradea, Romania
- Correspondence: (G.A.N.A.); (H.K.S.); (H.R.B.); (S.C.)
| |
Collapse
|
8
|
Olszewska-Czyz I, Kralik K, Tota M, Prpic J. The Influence of Hyaluronic Acid Adjunctive Therapy of Periodontitis on Salivary Markers of Oxidative Stress: Randomized, Controlled Clinical Trial. Antioxidants (Basel) 2022; 11:antiox11010135. [PMID: 35052639 PMCID: PMC8773125 DOI: 10.3390/antiox11010135] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/06/2022] [Accepted: 01/07/2022] [Indexed: 02/04/2023] Open
Abstract
Periodontitis is a common oral disease affecting the tooth-supporting tissues. Bacteria have been long viewed as the main causative factor in its development; however, many investigations have proved that aberrant immune and inflammatory response and the resulting misbalance between the damage caused by reactive oxygen species and the antioxidant capacity of tissues may be an underlying factor in disease progression that reduces healing potential. The objective of the current trial is to assess the outcomes of the addition of hyaluronic acid (HA) to standard non-surgical periodontal therapy (NST) on some major oxidative stress markers in saliva. HA-based gel designed for dental application was used and the measurements were taken after 3 months. HA adjunctive therapy had a significantly greater increase in markers with antioxidant properties as well as total antioxidant capacity compared to standard NST alone. Furthermore, clinically measured levels of gingival inflammation (bleeding on probing-BOP) and periodontal destruction (clinical attachment loss-CAL) were significantly correlated with these markers, and the correlation was negative. This investigation demonstrates that HA may indeed express antioxidant properties and improve the antioxidant capacity of periodontal tissues, thus improving the prognosis for the teeth and the results of periodontal therapy. Further investigations will be necessary to determine the duration of these effects over time.
Collapse
Affiliation(s)
- Iwona Olszewska-Czyz
- Department of Periodontology, Prophylaxis and Oral Pathology, Dental Institute, Medical Faculty, Jagiellonian University, 31155 Krakow, Poland
- Correspondence:
| | - Kristina Kralik
- Department of Medical Statistics and Medical Informatics, Medical Faculty Osijek, University Josip Juraj Strossmayer of Osijek, 31000 Osijek, Croatia;
| | - Marin Tota
- Department of Medical Chemistry, Biochemistry and Clinical Chemistry, Medical Faculty, University of Rijeka, 51000 Rijeka, Croatia;
| | - Jelena Prpic
- Department of Oral Medicine and Periodontology, Faculty of Dental Medicine, University of Rijeka, 51000 Rijeka, Croatia;
| |
Collapse
|
9
|
Toledano-Osorio M, Aguilera FS, Muñoz-Soto E, Osorio E, Toledano M, Escames G, Medina-Castillo AL, Osorio MT, López-López MT, Vallecillo-Rivas M, Osorio R. Melatonin-doped polymeric nanoparticles induce high crystalline apatite formation in root dentin. Dent Mater 2021; 37:1698-1713. [PMID: 34544591 DOI: 10.1016/j.dental.2021.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 09/04/2021] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To investigate the effect of novel polymeric nanoparticles (NPs) doped with melatonin (ML) on nano-hardness, crystallinity and ultrastructure of the formed hydroxyapatite after endodontic treatment. METHODS Undoped-NPs and ML-doped NPs (ML-NPs) were tested at radicular dentin, after 24 h and 6 m. A control group without NPs was included. Radicular cervical and apical dentin surfaces were studied by nano-hardness measurements, X-ray diffraction and transmission electron microscopy. Mean and standard deviation were analyzed by ANOVA and Student-Newman-Keuls multiple comparisons (p < 0.05). RESULTS Cervical dentin treated with undoped NPs maintained its nano-hardness values after 6 m of storage being [24 h: 0.29 (0.01); 6 m: 0.30 (0.02) GPa], but it decreased at apical dentin [24 h: 0.36 (0.01); 6 m: 0.28 (0.02) GPa]. When ML-NPs were used, nano-hardness was similar over time [24h: 0.31 (0.02); 6 m: 0.28 (0.03) GPa], at apical dentin. Root dentin treated with ML-NPs produced, in general, high crystallinity of new minerals and thicker crystals than those produced in the rest of the groups. After 6 m, crystals became organized in randomly oriented polyhedral, square polygonal block-like apatite or drop-like apatite polycrystalline lattices when ML-NPs were used. Undoped NPs generated poor crystallinity, with preferred orientation of small crystallite and increased microstrain. SIGNIFICANCE New polycrystalline formations encountered in dentin treated with ML-NPs may produce structural dentin stability and high mechanical performance at the root. The decrease of mechanical properties over time in dentin treated without NPs indicates scarce remineralization potential, dentin demineralization and further potential degradation. The amorphous stage may provide high hydroxyapatite solubility and remineralizing activity.
Collapse
Affiliation(s)
- Manuel Toledano-Osorio
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| | - Fátima S Aguilera
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| | - Esther Muñoz-Soto
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| | - Estrella Osorio
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| | - Manuel Toledano
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain.
| | - Germaine Escames
- Faculty of Medicine, Department of Physiology, Biomedical Research Center, CIBERFES, Ibs. San Cecilio University Hospital, University of Granada, Granada, Spain
| | - Antonio L Medina-Castillo
- University of Granada, NanoMyP, Spin-Off Enterprise, Edificio BIC-Granada, Av. Innovación 1, 18016, Armilla, Granada, Spain
| | | | - Modesto T López-López
- University of Granada, Faculty of Science, Applied Physics Department, Av. Fuente Nueva s/n, 18071 Granada, Spain
| | - Marta Vallecillo-Rivas
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| | - Raquel Osorio
- University of Granada, Department of Stomatology, Colegio Máximo de Cartuja s/n, Granada 18071, Spain
| |
Collapse
|
10
|
Sun B, Ying S, Ma Q, Li H, Li J, Song J. Metformin ameliorates HMGB1-mediated oxidative stress through mTOR pathway in experimental periodontitis. Genes Dis 2021; 10:542-553. [DOI: 10.1016/j.gendis.2021.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/08/2021] [Accepted: 06/03/2021] [Indexed: 12/26/2022] Open
|
11
|
Melatonin-doped polymeric nanoparticles reinforce and remineralize radicular dentin: Morpho-histological, chemical and biomechanical studies. Dent Mater 2021; 37:1107-1120. [PMID: 33846017 DOI: 10.1016/j.dental.2021.03.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 03/15/2021] [Accepted: 03/28/2021] [Indexed: 11/23/2022]
Abstract
OBJECTIVES To investigate the effectiveness of novel polymeric nanoparticles (NPs) doped with melatonin (ML) in reducing dentin permeability and facilitating dentin remineralization after endodontic treatment. METHODS The effect of undoped NPs and ML-doped NPs (ML-NPs) was tested in radicular dentin, at 24 h and 6 m. A control group without NPs was included. ML liberation was measured. Radicular dentin was assessed for fluid filtration. Dentin remineralization was analyzed by scanning electron microscopy, AFM, Young's modulus (Ei), Nano DMA-tan delta, and Raman analysis. RESULTS ML release ranged from 1.85 mg/mL at 24 h to 0.033 mg/mL at 28 d. Both undoped NPs and ML-NPs treated dentin exhibited the lowest microleakage, but samples treated with ML-NPs exhibited hermetically sealed dentinal tubules and extended mineral deposits onto dentin. ML-NPs promoted higher and durable Ei, and functional remineralization at root dentin, generating differences between the values of tan delta among groups and creating zones of stress concentration. Undoped-NPs produced closure of some tubules and porosities at the expense of a relative mineral amorphization. Chemical remineralization based on mineral and organic assessments was higher in samples treated with ML-NPs. When using undoped NPs, precipitation of minerals occurred; however, radicular dentin was not mechanically reinforced but weakened over time. SIGNIFICANCE Application of ML-NPs in endodontically treated teeth, previous to the canal filling step, is encouraged due to occlusion of dentinal tubules and the reinforcement of the radicular dentin structure.
Collapse
|
12
|
Malta CP, Barcelos RCS, Rosa HZ, Bürger ME, Bento LW. Effect of cerebral palsy and dental caries on dental plaque index, salivary parameters and oxidative stress in children and adolescents. Eur Arch Paediatr Dent 2021; 22:21-28. [PMID: 32008171 DOI: 10.1007/s40368-020-00509-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 01/14/2020] [Indexed: 12/16/2022]
Abstract
PURPOSE The aim of the present study was to investigate the effect of cerebral palsy and dental caries on dental plaque index, salivary parameters and oxidative stress in children and adolescents. METHODS Seventy children and adolescents aged 2-20 years were divided into four groups: neurotypical controls-inactive caries (NCIC; n = 19); neurotypical controls-active caries (NCAC; n = 16); cerebral palsy-inactive caries (CPIC; n = 19); and cerebral palsy-active caries (CPAC; n = 16). The visible dental plaque index was determined after drying the tooth surfaces and without any mechanical or chemical disclosing methods. Salivary pH and buffer capacity were measured 1 hour after collection using a digital pH meter. Saliva was used to evaluate oxidative status based on the levels of reactive species, lipid peroxidation and non-enzymatic antioxidants (reduced glutathione and vitamin C). RESULTS The CPIC and CPAC groups had lower salivary pH and a higher visible dental plaque index. CP was also associated with an increase in salivary levels of markers of oxidative stress and the modulation of salivary levels of non-enzymatic antioxidants. CONCLUSION Cerebral palsy exerts an influence on the salivary profile, oral health and oxidative stress. The individuals with CP had more acidic saliva and a higher dental plaque index, which were positively correlated with caries activity. CP was associated with high salivary levels of reactive species and lipid peroxidation, demonstrating an imbalance in salivary redox that was particularly associated with caries activity. These factors facilitate the development of oral diseases in individuals with cerebral palsy.
Collapse
Affiliation(s)
- C P Malta
- Graduate Program in Health and Life Sciences, Universidade Franciscana (UFN), 1175 Silva Jardim St, Santa Maria, RS, 97010-491, Brazil
| | - R C S Barcelos
- Graduate Program in Pharmacology, Universidade Federal de Santa Maria (UFSM), 1000 Roraima Ave, Santa Maria, RS, 97105-900, Brazil
| | - H Z Rosa
- Graduate Program in Pharmacology, Universidade Federal de Santa Maria (UFSM), 1000 Roraima Ave, Santa Maria, RS, 97105-900, Brazil
| | - M E Bürger
- Graduate Program in Pharmacology, Universidade Federal de Santa Maria (UFSM), 1000 Roraima Ave, Santa Maria, RS, 97105-900, Brazil
- Graduate Program in Toxicological Biochemistry, Universidade Federal de Santa Maria (UFSM), 1000 Roraima Ave, Santa Maria, RS, 97105-900, Brazil
| | - L W Bento
- Graduate Program in Health and Life Sciences, Universidade Franciscana (UFN), 1175 Silva Jardim St, Santa Maria, RS, 97010-491, Brazil.
| |
Collapse
|
13
|
Effects of melatonin in wound healing of dental pulp and periodontium: Evidence from in vitro, in vivo and clinical studies. Arch Oral Biol 2021; 123:105037. [PMID: 33440268 DOI: 10.1016/j.archoralbio.2020.105037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 12/15/2020] [Accepted: 12/24/2020] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Database research has revealed that melatonin has beneficial effects in pulpal and periodontal regeneration. Several studies reported protective effects of melatonin against inflammation in several organs including the heart, brain, and teeth. In addition to inflammation reduction, melatonin has been involved in tissue regeneration and wound healing. The aim of this review is to summarize the evidence from in vitro, in vivo and clinical studies on the effects of melatonin in wound healing of dental pulp and periodontium. This review gives a thorough summary of the possible role of melatonin in wound healing of dental pulp and periodontium in connection with anti-inflammatory and antioxidant effects, cell proliferation, and cell differentiation. Any contradictory evidence is also assessed. METHODS The PubMed database was searched for all research articles published before April 2020 with the search terms "melatonin" and "dental pulp". Articles with the search terms "melatonin", "periodontal disease" and "bone" published before October 2019 were also included. Non-English articles were excluded. RESULTS Melatonin has been shown to reduce inflammation, inhibit cell proliferation and regulate differentiation of pulp cells. Melatonin increased odontoblast activities, resulting in the differentiation in the dental pulp. However, melatonin did not initiate differentiation in undifferentiated pulp cells but seemed to have beneficial effects in periodontitis by promoting periodontium's wound healing. CONCLUSION Those findings suggest that melatonin could have beneficial effects on pulpal and periodontal cells under inflammatory conditions. However, discrepancies remain between in vitro and in vivo findings regarding the effect of melatonin on dental pulp and periodontium.
Collapse
|
14
|
Toraman A, Arabaci T, Aytekin Z, Albayrak M, Bayir Y. Effects of vitamin C local application on ligature-induced periodontitis in diabetic rats. J Appl Oral Sci 2020; 28:e20200444. [PMID: 33263670 PMCID: PMC7695129 DOI: 10.1590/1678-7757-2020-0444] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Accepted: 08/31/2020] [Indexed: 04/09/2023] Open
Abstract
Objective: This study evaluated the effects of local vitamin C treatment on tissue advanced glycation end products (AGE), interleukin (IL)-6, 8-hydroxy-2-deoxyguanosine (8-OHdG), and matrix metalloproteinases (MMP)-8 in tissues; serum C-terminal telopeptide fragments (CTX); and alveolar bone loss (ABL) in rats. Methodology: 35 male Sprague Dawley rats were divided equally into five groups: 1) control (C), 2) experimental periodontitis (P), 3) experimental diabetes (D), 4) experimental diabetes and experimental periodontitis (D + P), and 5) experimental diabetes–experimental periodontitis–locally applied vitamin C (D + P + LvitC). Diabetes was induced in rats with alloxan monohydrate, after which periodontitis was induced by ligature placement in the right mandibular first molar teeth for 11 days. In the treatment group, vitamin C was administered locally three times with two-days interval after ligature removal. The animals were sacrificed, and the samples were analyzed histometrically and immunohistochemically. Results: CTX, 8-OHdG, and AGE values significantly decreased in the treatment group compared to the D + P group. IL-6 and MMP-8 values decreased in the treatment group compared to the D + P group, but this is not significant. ABL was significantly reduced by the local delivery of vitamin C. Conclusion: This study reveals that vitamin C treatment may be beneficial to reduce serum CTX and gingival MMP-8 levels, oxidative stress, inflammation, and AGE accumulation in periodontal tissue. Vitamin C may be an immunomodulator and antioxidant locally applied in the treatment of periodontitis to reduce the adverse effects of diabetes in periodontal tissues.
Collapse
Affiliation(s)
- Ayşe Toraman
- Sağlık Bilimleri University, Faculty of Dentistry, Department of Periodontology, İstanbul, Turkey
| | - Taner Arabaci
- Atatürk University, Faculty of Dentistry, Department of Periodontology, Erzurum, Turkey
| | - Zeliha Aytekin
- Akdeniz University, Faculty of Dentistry, Department of Periodontology, Antalya, Turkey
| | - Mevlüt Albayrak
- Ataturk University, Health Services Vocational Training School, Department of Medical Laboratory Techniques, Erzurum, Turkey
| | - Yasin Bayir
- Atatürk University, Faculty of Pharmacy Department of Basic Pharmacy Sciences, Department of Biochemistry, Erzurum, Turkey
| |
Collapse
|
15
|
Sola VM, Aguilar JJ, Vazquez Mosquera AP, Carpentieri AR. Melatonin is an effective protector of gingival cells damaged by the cytotoxic effect of glutamate and DL-buthionine sulfoximine. J Periodontal Res 2020; 56:154-161. [PMID: 32965035 DOI: 10.1111/jre.12806] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 08/08/2020] [Accepted: 09/02/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND OBJECTIVE Cellular damage related to oxidative stress (OS) is implicated in periodontal diseases (PD). Melatonin (MEL) has multiple functions, and it has been described as a potential treatment for PD. We aim at evaluating the protective effects of MEL on an in vitro model of cellular damage triggered by glutamate (GLUT) and DL-buthionine sulfoximine (BSO), on gingival cells (GCs) in culture. MATERIAL AND METHODS A primary culture of GCs from Wistar rats was developed in order to test the protective property of MEL; BSO and GLUT were administered alone as well as in combination with MEL. The viability and apoptosis were measured with MTT assay and TUNEL, respectively, and the concentration of superoxide anion ( O 2 - ) was measured with the NBT method. RESULTS The combination of BSO and GLUT treatment resulted in a decreased viability of GCs. This was evidenced by the increase in both the production of superoxide anion and apoptosis. After MEL administration, the oxidant and pro-apoptotic effects of BSO and GLUT were totally counteracted. CONCLUSIONS These findings demonstrated that MEL has an effective protective role on GCs subjected to cellular damage in a model of OS and cytotoxicity triggered by BSO and GLUT. Consequently, MEL could be used as a therapeutic agent in PD which begin with a significative loss of GCs.
Collapse
Affiliation(s)
- Verónica M Sola
- Cátedra "B" de Química Biológica, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina.,INICSA/UNC-CONICET, Enrique Barros esquina Enfermera Gordillo, Ciudad Universitaria, Córdoba, Argentina
| | - Juan J Aguilar
- Instituto Dr. José M.Vanella, Facultad de Ciencias Médicas, UNC, Córdoba, Argentina.,Cátedra "B" de Introducción a la Física y Química Biológica, Facultad de Odontología, UNC, Córdoba, Argentina
| | - Ana P Vazquez Mosquera
- INICSA/UNC-CONICET, Enrique Barros esquina Enfermera Gordillo, Ciudad Universitaria, Córdoba, Argentina.,Cátedra "B" de Introducción a la Física y Química Biológica, Facultad de Odontología, UNC, Córdoba, Argentina
| | - Agata R Carpentieri
- Cátedra "B" de Química Biológica, Facultad de Odontología, Universidad Nacional de Córdoba, Córdoba, Argentina.,INICSA/UNC-CONICET, Enrique Barros esquina Enfermera Gordillo, Ciudad Universitaria, Córdoba, Argentina
| |
Collapse
|
16
|
Hu Q, Zhou Y, Wu S, Wu W, Deng Y, Shao A. Molecular hydrogen: A potential radioprotective agent. Biomed Pharmacother 2020; 130:110589. [PMID: 32763820 DOI: 10.1016/j.biopha.2020.110589] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/25/2020] [Accepted: 07/28/2020] [Indexed: 02/07/2023] Open
Abstract
In recent years, many studies have shown that hydrogen has therapeutic and preventive effects on various diseases. Its selective antioxidant properties were well noticed. Most of the ionizing radiation-induced damage is caused by hydroxyl radicals (OH) from radiolysis of H2O. Since hydrogen can mitigate such damage through multiple mechanisms, it presents noteworthy potential as a novel radio-protective agent. This review analyses possible mechanisms for hydrogen's radioprotective properties and effective delivery methods. We also look into details of vitro and vivo studies for hydrogen's radioprotective effects, and clinical practices. We conclude that hydrogen has good potential in radio-protection, with evidence that warrants greater research efforts in this field.
Collapse
Affiliation(s)
- Qiongge Hu
- Department of Radiation Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yunxiang Zhou
- Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shijie Wu
- Cancer Institute (Key Laboratory of Cancer Prevention and Intervention, China National Ministry of Education), The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wei Wu
- Department of Medical Oncology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yongchuan Deng
- Department of Surgical Oncology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Anwen Shao
- Department of Neurosurgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| |
Collapse
|
17
|
Aytekin Z, Arabacı T, Toraman A, Bayır Y, Albayrak M, Üstün K. Immune modulatory and antioxidant effects of locally administrated vitamin C in experimental periodontitis in rats. Acta Odontol Scand 2020; 78:425-432. [PMID: 32157939 DOI: 10.1080/00016357.2020.1734656] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Background: Vitamin C is an important water-soluble vitamin with antioxidant and immune-modulatory actions. The aim of this study was to investigate the effects of locally applied vitamin C on alveolar bone resorption in rats with experimental periodontitis.Methods: Twenty-one male Sprague-Dawley rats divided into three groups with seven animals in each group: (1) control, (2) experimental periodontitis and 3) experimental periodontitis-local vitamin C treatment group. After ligature was removed, 50 μL vitamin C was locally administered into the subperiosteum of the buccal gingiva of periodontitis vitamin C (PvitC) group rats for three times in intervals of 2 days. At the end of the study, the animals were scarified, and serum and gingival samples were collected for analysis of serum IL-1β, oxidative stress index (OSI), CTX and malondialdehyde (MDA) levels and gingival MMP-8 immunostaining. Alveolar bone loss and attachment loss were determined based on measurements on histological sections obtained from rat mandibles.Results: Serum MDA and OSI levels which are related to the oxidative stress were significantly lower in the PvitC group as compared with those in the P group (p < .05). Serum CTX levels which are related to the bone resorption were significantly lower in the PvitC group as compared with those in the P group (p < .05). The numeric density of MMP-8-positive cells was significantly lower in the PvitC group compared to P group (p < .05). Alveolar bone loss and attachment loss were significantly lower in the PvitC group compared to P group (p < .05)Conclusions: The local vitamin C administration provided protection against inflammation-induced alveolar bone resorption by decreasing oxidative stress and inflammation-induced tissue breakdown vitamin C may be a therapeutic agent that can be used in periodontitis treatment.
Collapse
Affiliation(s)
- Zeliha Aytekin
- Department of Periodontology, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| | - Taner Arabacı
- Department of Periodontology, Faculty of Dentistry, Atatürk University, Erzurum, Turkey
| | - Ayşe Toraman
- Department of Periodontology, Faculty of Dentistry, Sağlık Bilimleri University, İstanbul, Turkey
| | - Yasin Bayır
- Department of Biochemistry, Faculty of Pharmacy, Atatürk University, Erzurum, Turkey
| | - Mevlüt Albayrak
- Department of Medical Laboratory Techniques, Health Services Vocational Training School, Atatürk University, Erzurum, Turkey
| | - Kemal Üstün
- Department of Periodontology, Faculty of Dentistry, Akdeniz University, Antalya, Turkey
| |
Collapse
|
18
|
Taschetto Vey L, Zuquetto Rosa H, Cristine Silva Barcelos R, Tironi Dias V, Izabel Ugalde Marques da Rocha M, Escobar Burger M. Neonatal handling increases neurogenesis, BDNF and GR in the hippocampus favoring memory acquisition in rats. Brain Res 2020; 1745:146921. [PMID: 32505752 DOI: 10.1016/j.brainres.2020.146921] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 05/01/2020] [Accepted: 06/01/2020] [Indexed: 02/07/2023]
Abstract
Early life is a critical period for the development of the central nervous system (CNS) when the brain undergoes functional organization, neuronal proliferation and migration. This study aimed to evaluate influences and possible interactions of the neonatal handling (NH) on morphologic, biochemical and molecular markers in the hippocampus, as well as on Mu opioid receptors (MOR) immunoreactivity when adolescent rats were exposed to morphine. On postnatal day (PND) 1, male pups were assigned to two experimental groups: unhandled (UH) or neonatal handling (NH), whose procedure was applied from PND2 to PND9. On PND 50, animals were submitted to memory behavioral test, anesthesia and euthanasia for blood collection and hippocampus removal. Animals exposed to NH showed: i) increased levels of proBDNF and brain-derived neurotrophic factor (BDNF); ii) increased memory performance; iii) decreased lipid peroxidation (LP) in plasma and hippocampus; iv) increased antioxidant defenses; v) increased glucocorticoids receptor (GR) levels. Interestingly, our data showed a positive correlation between BDNF and working memory after NH procedure (r2 = 0.73; P = 0.006). Animals submitted to NH showed an increased per se of MOR immunoreactivity regardless of morphine exposure, while this increasing was also observed in the UH group after morphine exposure, even in a small extent. NH beneficial influence during early stage of life can be reflected during the development of the puppies, enhancing memory performance, preventing oxidative events and improving molecular targets in hippocampus. Further experimental studies in addition to clinical ones are needed to validate NH protocol as a therapeutic tool.
Collapse
Affiliation(s)
- Luciana Taschetto Vey
- Programa de Pós Graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil
| | | | | | | | - Maria Izabel Ugalde Marques da Rocha
- Programa de Pós Graduação em Farmacologia, UFSM, Santa Maria, RS, Brazil; Departamento de Fisiologia e Farmacologia, UFSM, Santa Maria, RS, Brazil
| | - Marilise Escobar Burger
- Programa de Pós Graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria (UFSM), Santa Maria, RS, Brazil; Programa de Pós Graduação em Farmacologia, UFSM, Santa Maria, RS, Brazil; Departamento de Fisiologia e Farmacologia, UFSM, Santa Maria, RS, Brazil.
| |
Collapse
|
19
|
Köse O, Kurt Bayrakdar S, Akyıldız K, Altın A, Arabacı T, Yemenoglu H, Zihni Korkmaz M, Köse TE, Türker Sener L, Mercantepe T, Tümkaya L, Yılmaz A. Melatonin ameliorates periodontitis-related inflammatory stress at cardiac left ventricular tissues in rats. J Periodontol 2020; 91:1486-1494. [PMID: 32279321 DOI: 10.1002/jper.19-0685] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 02/28/2020] [Accepted: 03/15/2020] [Indexed: 12/28/2022]
Abstract
BACKGROUND The aim of this experimental rat study was to investigate the potential inflammatory effects of periodontitis on cardiac left ventricular tissue and the therapeutic activity of melatonin on these effects. METHODS Twenty-four male Sprague-Dawley rats were randomly divided into three groups: control, experimental periodontitis (Ep), and Ep-melatonin (Ep-Mel). Experimental periodontitis was induced by placing and maintaining 3.0 silk ligatures at a peri marginal position on the left and right mandibular first molars for 5 weeks. Afterward, following the removal of ligatures, melatonin (10 mg/body weight) to Ep-Mel group, and vehicle (saline) to Ep and control groups were administered intraperitoneally for 14 days. On the first day of the eighth week, mandibular and cardiac left ventricular tissue samples were obtained following the euthanasia of the rats in all groups. Alveolar bone loss measurements were made on histological and microcomputed tomographic slices. Cardiac tissue levels of malondialdehyde (MDA), glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), matrix metalloproteinase-9 (MMP-9), and cardiac Troponin-T (cTnT) were evaluated by appropriate biochemical methods. RESULTS Measurements made on the histological and microcomputed tomographic slices showed that melatonin significantly limits the ligature-induced periodontal tissue destruction (P <0.01). In addition, melatonin was detected to cause a significant decrease of MDA, MMP-9, and cTnT levels which were found to be significantly higher on rats with Ep (P <0.05) while having no significant effect on antioxidant levels (GSH, SOD, and CAT) (P >0.05). CONCLUSION Melatonin might be regarded as an important supportive therapeutic agent to reduce the early degenerative changes and possible hypertrophic remodeling at cardiac left ventricular tissues provoked by periodontitis-related bacteria and/or periodontal inflammation.
Collapse
Affiliation(s)
- Oğuz Köse
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Sevda Kurt Bayrakdar
- School of Dentistry, Department of Periodontology, Eskişehir Osmangazi University, Eskisehir, Turkey
| | - Kerimali Akyıldız
- School of Healh Care Services Vocational, Department of Medical Services and Techniques, Recep Tayyip Erdogan University, Rize, Turkey
| | - Ahmet Altın
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Taner Arabacı
- School of Dentistry, Department of Periodontology, Ataturk University, Erzurum, Turkey
| | - Hatice Yemenoglu
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Meltem Zihni Korkmaz
- School of Dentistry, Department of Periodontology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Taha Emre Köse
- School of Dentistry, Department of Dentomaxillofacial Radiology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Leyla Türker Sener
- School of Medicine, Department of Biophysics, Istanbul University, Istanbul, Turkey
| | - Tolga Mercantepe
- School of Medicine, Department of Histology and Embryology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Levent Tümkaya
- School of Medicine, Department of Histology and Embryology, Recep Tayyip Erdogan University, Rize, Turkey
| | - Adnan Yılmaz
- School of Medicine, Department of Biochemistry, Recep Tayyip Erdogan University, Rize, Turkey
| |
Collapse
|
20
|
Kızıldağ A, Arabacı T, Albayrak M, Balseven HM, Aksu Kızıldağ C, Tasdemir U. A biochemical and immunohistochemical study of the effects of caffeic acid phenethyl ester on alveolar bone loss and oxidative stress in diabetic rats with experimental periodontitis. Biotech Histochem 2020; 95:456-463. [PMID: 32013634 DOI: 10.1080/10520295.2020.1718756] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Caffeic acid phenethyl ester (CAPE) is used as a therapeutic agent to prevent bone loss. We determined the effects of systemically administered CAPE on alveolar bone loss and oxidative stress in diabetic rats with experimental periodontitis. Forty male rats were divided into four equal groups: control, experimental periodontitis (EP), EP-diabetes mellitus (EP-DM) and EP-DM-CAPE. DM was induced by streptozotocin, then lipopolysaccharide was injected to induce periodontitis. CAPE was administered to the EP-DM-CAPE group daily for 15 days. Then, serum samples were taken and the rats were sacrificed for histological analyses. Serum interleukin (IL-1β) and oxidative stress also were evaluated. Alveolar bone loss was assessed histomorphometrically. Alveolar bone loss and IL-1β levels were significantly less in the EP-DM-CAPE and EP groups compared to the EP-DM group. Oxidative stress was significantly less in the EP-DM-CAPE group compared to the EP and EP-DM groups. Receptor activator of nuclear factor kappa-B ligand (RANKL) levels were significantly higher in the EP-DM group compared to the disease groups. CAPE significantly reduced RANKL levels in the EP-DM-CAPE group compared to the EP-DM group. We found that CAPE treatment significantly inhibited DM induced oxidative stress and RANKL induced osteoclastogenesis and alveolar bone loss in diabetic rats with periodontitis.
Collapse
Affiliation(s)
- Alper Kızıldağ
- Department of Periodontology, Faculty of Dentistry, Pamukkale University , Denizli, Turkey
| | - Taner Arabacı
- Department of Periodontology, Faculty of Dentistry, Atatürk University , Erzurum, Turkey
| | - Mevlüt Albayrak
- Medical Laboratory Department, Health Services Vocational Training School, Ataturk University , Erzurum, Turkey
| | - Havva Müge Balseven
- Department of Periodontology, Faculty of Dentistry, Pamukkale University , Denizli, Turkey
| | - Canan Aksu Kızıldağ
- Department of Orthodontics, Faculty of Dentistry, Pamukkale University , Denizli, Turkey
| | - Ufuk Tasdemir
- Department of Maxillofacial Surgery, Faculty of Dentistry, Pamukkale University , Denizli, Turkey
| |
Collapse
|
21
|
KIZILDAĞ A, Arabacı T, Albayrak M, Taşdemir U, Mergen Dalyanoğlu M, Aksu Kızıldağ C. Evaluation of Caffeic Acid Phenethyl Ester Administration in Chronically Stressed Rats with Experimental Periodontitis. CUMHURIYET DENTAL JOURNAL 2019. [DOI: 10.7126/cumudj.513701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
|
22
|
Irie MS, Mendes EM, Borges JS, Osuna LGG, Rabelo GD, Soares PBF. Periodontal therapy for patients before and after radiotherapy: A review of the literature and topics of interest for clinicians. Med Oral Patol Oral Cir Bucal 2018; 23:e524-e530. [PMID: 30148466 PMCID: PMC6167093 DOI: 10.4317/medoral.22474] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 07/22/2018] [Indexed: 11/22/2022] Open
Abstract
Background To review and discuss important topics regarding periodontal treatment pre- and post-radiotherapy for head and neck cancer in human patients; to discuss the references for adequate techniques, the appropriate moment for tooth extractions and periodontal management; and to discuss the prevention of osteoradionecrosis. Material and Methods Thirty-nine studies including original studies, randomized clinical trials (RCTs) and reviews were searched in online databases MEDLINE (PubMed) and the Cochrane library. No year of publication restriction was applied. Results Language was restricted to English, and the following Medical Subject Heading terms were used: radiotherapy, radiation therapy and periodontal treatment. Studies regarding periodontal treatment and tooth extraction that involved clinical management of irradiated patients were selected. Conclusions The treatment of periodontal diseases before radiotherapy is mainly required to avoid future dental extraction and to reduce the development of osteoradionecrosis. Periodontal treatment in irradiated patients mostly includes scaling and root planing, extraction of condemned teeth and topical and systemic antimicrobial therapy. Tooth removal should be planned at least 14 days before the first day of radiation treatment. Particular care and mouthwashes should be taken during and after radiation. Clinical Significance The management of irradiated patients represents a challenge for health professionals, including dentists. It is important to establish recommendations for clinicians concerning dental and periodontal management in irradiated patients before, during and after treatment. Key words:Head and neck cancer, radiotherapy, periodontal treatment, periodontitis.
Collapse
Affiliation(s)
- M-S Irie
- Universidade Federal de Uberlândia, Faculdade de Odontologia, Av. Pará, 1720, Bloco 4L, Anexo A, Campos Umuarama, CEP: 38400-902, Uberlândia, Minas Gerais, Brazil,
| | | | | | | | | | | |
Collapse
|
23
|
Ni J, Chen L, Zhong S, Chai Q, Zhang L, Wang D, Li S, Zhang J. Influence of periodontitis and scaling and root planing on insulin resistance and hepatic CD36 in obese rats. J Periodontol 2018. [PMID: 29520779 DOI: 10.1002/jper.17-0115] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jia Ni
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Lei Chen
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Sulan Zhong
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Qiaoxue Chai
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Lin Zhang
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Dan Wang
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Shaobing Li
- Department of Periodontics; Stomatological Hospital of Southern Medical University; Guangdong Provincial Stomatological Hospital; Guangzhou 510280 China
| | - Jincai Zhang
- Vice President; Savaid Medical School of University of Chinese Academy of Sciences; Beijing 100049 China
| |
Collapse
|
24
|
Tóthová L, Celec P. Oxidative Stress and Antioxidants in the Diagnosis and Therapy of Periodontitis. Front Physiol 2017; 8:1055. [PMID: 29311982 PMCID: PMC5735291 DOI: 10.3389/fphys.2017.01055] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Accepted: 12/04/2017] [Indexed: 12/17/2022] Open
Abstract
Oxidative stress has been implicated in the pathogenesis of numerous diseases. However, large interventional studies with antioxidants failed to show benefits in the prevention or treatment of cardiovascular diseases, cancer, or diabetes mellitus. Numerous clinical studies have confirmed the association of oxidative stress markers and periodontitis. Technical and biological variability is high for most of the analyzed markers and none of them seems to be optimal for routine clinical use. In a research setting, analysis of a palette of oxidative stress markers is needed to cover lipid peroxidation, protein oxidation, and the antioxidant status. The source of reactive oxygen species and their role in the pathogenesis of periodontitis remains unclear. Interventional experiments indicate that oxidative stress might be more than just a simple consequence of the inflammation. Small studies have confirmed that some antioxidants could have therapeutic value at least as an addition to the standard non-surgical treatment of periodontitis. A clear evidence for the efficiency of antioxidant treatment in large patient cohorts is lacking. Potentially, because lowering of oxidative stress markers might be a secondary effect of anti-inflammatory or antibacterial agents. As the field of research of oxidative stress in periodontitis gains attraction and the number of relevant published papers is increasing a systematic overview of the conducted observational and interventional studies is needed. This review summarizes the currently available literature linking oxidative stress and periodontitis and points toward the potential of adjuvant antioxidant treatment, especially in cases where standard treatment fails to improve the periodontal status.
Collapse
Affiliation(s)
- L'ubomíra Tóthová
- Faculty of Medicine, Institute of Molecular Biomedicine, Comenius University, Bratislava, Slovakia.,Faculty of Medicine, Institute of Physiology, Comenius University, Bratislava, Slovakia
| | - Peter Celec
- Faculty of Medicine, Institute of Molecular Biomedicine, Comenius University, Bratislava, Slovakia.,Faculty of Medicine, Institute of Pathophysiology, Comenius University, Bratislava, Slovakia.,Department of Molecular Biology, Faculty of Natural Sciences, Comenius University, Bratislava, Slovakia
| |
Collapse
|