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Amusan TO, Ogunbiyi OJ, Shoge MO, Jemkur M, Joseph PS. Evaluation of phytochemical compounds and proximate analysis of doum palm fruit (Hyphaene thebaica) blend with turmeric powder (Curcuma longa). BMC Chem 2024; 18:140. [PMID: 39080762 PMCID: PMC11288103 DOI: 10.1186/s13065-024-01256-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 07/23/2024] [Indexed: 08/02/2024] Open
Abstract
Doum palm and turmeric are traditional medicinal plants with a rich history of use. This study investigated the phytochemical composition, proximate analysis, and GC-MS characterization of doum palm and turmeric blends at different ratios (100%, 80:20%, 60:40%, and 50:50%) using ethanol and warm-water extracts. Phytochemical screening revealed the presence of various bioactive compounds, including alkaloids, anthraquinones, flavonoids, glycosides, saponins, tannins, terpenoids, and phenols, in the blends at ratios of 80:20%, 60:40%, and 50:50%. Alkaloids were absent in the 100% doum palm sample. Proximate analysis showed significant variations in moisture, ash, fat, and protein content among the samples. GC-MS characterization identified at most 30 phytochemical compounds in sample A and more additional 9 bioactive compounds in samples B, C and D, including two new compounds, eucalyptol and carotol, found in the doum palm-turmeric blends. These compounds have been known to possess various antioxidant and therapeutic potential. The findings suggest that doum palm and turmeric blends have improved potential health benefits due to their high content of phytochemical compounds and balanced proximate composition. Further research is warranted to determine the most effective doum palm to turmeric ratio (Optimal Blending Ratios) for specific health applications. This includes identifying the blend ratios that maximize the therapeutic benefits for particular conditions or diseases.
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Affiliation(s)
- Temiloluwa O Amusan
- Department of Chemistry, Air Force Institute of Technology, PMB 2104, Kaduna, Nigeria
| | | | - Mansurat O Shoge
- Department of Chemistry, Air Force Institute of Technology, PMB 2104, Kaduna, Nigeria
| | - Maurice Jemkur
- Department of Chemistry, Air Force Institute of Technology, PMB 2104, Kaduna, Nigeria
| | - Peter S Joseph
- Biology Unit, Air Force Institute of Technology, PMB 2104, Kaduna, Nigeria
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Almogy M, Moses O, Schiffmann N, Weinberg E, Nemcovsky CE, Weinreb M. Addition of Resolvins D1 or E1 to Collagen Membranes Mitigates Their Resorption in Diabetic Rats. J Funct Biomater 2023; 14:jfb14050283. [PMID: 37233393 DOI: 10.3390/jfb14050283] [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: 04/15/2023] [Revised: 05/14/2023] [Accepted: 05/16/2023] [Indexed: 05/27/2023] Open
Abstract
Uncontrolled diabetes is characterized by aberrant inflammatory reactions and increased collagenolysis. We have reported that it accelerates the degradation of implanted collagen membranes (CM), thus compromising their function in regenerative procedures. In recent years, a group of physiological anti-inflammatory agents called specialized pro-resolving lipid mediators (SPMs) have been tested as a treatment for various inflammatory conditions, either systemically or locally, via medical devices. Yet, no study has tested their effect on the fate of the biodegradable material itself. Here, we measured the in vitro release over time of 100 or 800 ng resolvin D1 (RvD1) incorporated into CM discs. In vivo, diabetes was induced in rats with streptozotocin, while buffer-injected (normoglycemic) rats served as controls. Resolvins (100 or 800 ng of RvD1 or RvE1) were added to biotin-labeled CM discs, which were implanted sub-periosteally over the calvaria of rats. Membrane thickness, density, and uniformity were determined by quantitative histology after 3 weeks. In vitro, significant amounts of RvD1 were released over 1-8 days, depending on the amount loaded. In vivo, CMs from diabetic animals were thinner, more porous, and more variable in thickness and density. The addition of RvD1 or RvE1 improved their regularity, increased their density, and reduced their invasion by the host tissue significantly. We conclude that addition of resolvins to biodegradable medical devices can protect them from excessive degradation in systemic conditions characterized by high degree of collagenolysis.
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Affiliation(s)
- Michal Almogy
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel Aviv-Yafo 6997801, Israel
- Department of Periodontology and Implant Dentistry, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel Aviv-Yafo 6997801, Israel
| | - Ofer Moses
- Department of Periodontology and Implant Dentistry, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel Aviv-Yafo 6997801, Israel
| | - Nathan Schiffmann
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel Aviv-Yafo 6997801, Israel
| | - Evgeny Weinberg
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel Aviv-Yafo 6997801, Israel
- Department of Periodontology and Implant Dentistry, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel Aviv-Yafo 6997801, Israel
| | - Carlos E Nemcovsky
- Department of Periodontology and Implant Dentistry, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel Aviv-Yafo 6997801, Israel
| | - Miron Weinreb
- Department of Oral Biology, The Maurice and Gabriela Goldschleger School of Dental Medicine, Tel-Aviv University, Tel Aviv-Yafo 6997801, Israel
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Bhatt HD, Golub LM, Lee HM, Kim J, Zimmerman T, Deng J, Hong H, Johnson F, Gu Y. Efficacy of a Novel Pleiotropic MMP-Inhibitor, CMC2.24, in a Long-Term Diabetes Rat Model with Severe Hyperglycemia-Induced Oral Bone Loss. J Inflamm Res 2023; 16:779-792. [PMID: 36860795 PMCID: PMC9969803 DOI: 10.2147/jir.s399043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 02/03/2023] [Indexed: 02/24/2023] Open
Abstract
Purpose CMC2.24, a novel 4-(phenylaminocarbonyl)-chemically-modified-curcumin, is a pleiotropic MMP-Inhibitor of various inflammatory/collagenolytic diseases including periodontitis. This compound has demonstrated efficacy in host modulation therapy along with improved resolution of inflammation in various study models. The objective of current study is to determine the efficacy of CMC2.24 in reducing the severity of diabetes, and its long-term role as an MMP-inhibitor, in a rat model. Methods Twenty-one adult male Sprague-Dawley rats were randomly distributed into three groups: Normal (N), Diabetic (D) and Diabetic+CMC2.24 (D+2.24). All three groups were orally administered vehicle: carboxymethylcellulose alone (N, D), or CMC2.24 (D+2.24; 30mg/kg/day). Blood was collected at 2-months and 4-months' time-point. At completion, gingival tissue and peritoneal washes were collected/analyzed, and jaws examined for alveolar bone loss by micro-CT. Additionally, sodium hypochlorite(NaClO)-activation of human-recombinant (rh) MMP-9 and its inhibition by treatment with 10μM CMC2.24, Doxycycline, and Curcumin were evaluated. Results CMC2.24 significantly reduced the levels of lower-molecular-weight active-MMP-9 in plasma. Similar trend of reduced active-MMP-9 was also observed in cell-free peritoneal and pooled gingival extracts. Thus, treatment substantially decreased conversion of pro- to actively destructive proteinase. Normalization of the pro-inflammatory cytokine (IL-1ß, resolvin-RvD1), and diabetes-induced osteoporosis was observed in presence of CMCM2.24. CMC2.24 also exhibited significant anti-oxidant activity by inhibiting the activation of MMP-9 to a lower-molecular-weight (82kDa) pathologically active form. All these systemic and local effects were observed in the absence of reduction in severity of hyperglycemia. Conclusion CMC2.24 reduced activation of pathologic active-MMP-9, normalized diabetic osteoporosis, and promoted resolution of inflammation but had no effect on the hyperglycemia in diabetic rats. This study also highlights the role of MMP-9 as an early/sensitive biomarker in the absence of change in any other biochemical parameter. CMC2.24 also inhibited significant activation of pro-MMP-9 by NaOCl (oxidant) adding to known mechanisms by which this compound treats collagenolytic/inflammatory diseases including periodontitis.
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Affiliation(s)
- Heta Dinesh Bhatt
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA,Correspondence: Heta Dinesh Bhatt, Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA, Tel +1631820-5311, Email
| | - Lorne M Golub
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Hsi-Ming Lee
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Jihwan Kim
- Department of Pediatric Dentistry, University of Buffalo School of Dental Medicine, Buffalo, NY, USA
| | - Thomas Zimmerman
- Division of Laboratory Animal Resources (DLAR) at Stony Brook, Stony Brook University, Stony Brook, NY, USA
| | - Jie Deng
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, People’s Republic of China
| | - Houlin Hong
- Department of Community Health & Social Sciences, Graduate School of Public Health & Health Policy, City University of New York, New York City, NY, USA
| | - Francis Johnson
- Department of Chemistry and Pharmacological Sciences, School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Ying Gu
- Department of General Dentistry, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
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The Antimicrobial Activity of Curcumin and Xanthohumol on Bacterial Biofilms Developed over Dental Implant Surfaces. Int J Mol Sci 2023; 24:ijms24032335. [PMID: 36768657 PMCID: PMC9917338 DOI: 10.3390/ijms24032335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/21/2023] [Accepted: 01/22/2023] [Indexed: 01/26/2023] Open
Abstract
In search for natural products with antimicrobial properties for use in the prevention and treatment of peri-implantitis, the purpose of this investigation was to evaluate the antimicrobial activity of curcumin and xanthohumol, using an in vitro multi-species dynamic biofilm model including Streptococcus oralis, Actinomyces naeslundii, Veillonella parvula, Fusobacterium nucleatum, Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans. The antimicrobial activities of curcumin (5 mM) and xanthohumol (100 μM) extracts, and the respective controls, were evaluated with 72-h biofilms formed over dental implants by their submersion for 60 seconds. The evaluation was assessed by quantitative polymerase chain reaction (qPCR), confocal laser scanning microscopy (CLSM) and scanning electron microscopy (SEM). For the data analysis, comparisons were tested applying ANOVA tests with post-hoc Bonferroni corrections to evaluate the antimicrobial activity of both extracts. With qPCR, statistically significant reductions in bacterial counts were observed for curcumin and xanthohumol, when compared to the negative control. The results with CLSM and SEM were consistent with those reported with qPCR. It was concluded that both curcumin and xanthohumol have demonstrated antimicrobial activity against the six bacterial species included in the dynamic in vitro biofilm model used.
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El-Saadony MT, Yang T, Korma SA, Sitohy M, Abd El-Mageed TA, Selim S, Al Jaouni SK, Salem HM, Mahmmod Y, Soliman SM, Mo’men SAA, Mosa WFA, El-Wafai NA, Abou-Aly HE, Sitohy B, Abd El-Hack ME, El-Tarabily KA, Saad AM. Impacts of turmeric and its principal bioactive curcumin on human health: Pharmaceutical, medicinal, and food applications: A comprehensive review. Front Nutr 2023; 9:1040259. [PMID: 36712505 PMCID: PMC9881416 DOI: 10.3389/fnut.2022.1040259] [Citation(s) in RCA: 31] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/09/2022] [Indexed: 01/11/2023] Open
Abstract
The yellow polyphenolic pigment known as curcumin, originating from the rhizome of the turmeric plant Curcuma longa L., has been utilized for ages in ancient medicine, as well as in cooking and food coloring. Recently, the biological activities of turmeric and curcumin have been thoroughly investigated. The studies mainly focused on their antioxidant, antitumor, anti-inflammatory, neuroprotective, hepatoprotective, and cardioprotective impacts. This review seeks to provide an in-depth, detailed discussion of curcumin usage within the food processing industries and its effect on health support and disease prevention. Curcumin's bioavailability, bio-efficacy, and bio-safety characteristics, as well as its side effects and quality standards, are also discussed. Finally, curcumin's multifaceted uses, food appeal enhancement, agro-industrial techniques counteracting its instability and low bioavailability, nanotechnology and focused drug delivery systems to increase its bioavailability, and prospective clinical use tactics are all discussed.
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Affiliation(s)
- Mohamed T. El-Saadony
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Tao Yang
- Key Laboratory of Tropical Translational Medicine of Ministry of Education, School of Pharmacy, Hainan Medical University, Haikou, China
| | - Sameh A. Korma
- Department of Food Science, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Mahmoud Sitohy
- Department of Biochemistry, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Taia A. Abd El-Mageed
- Department of Soils and Water, Faculty of Agriculture, Fayoum University, Fayoum, Egypt
| | - Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka, Saudi Arabia
| | - Soad K. Al Jaouni
- Department of Hematology/Oncology, Yousef Abdulatif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Heba M. Salem
- Department of Poultry Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Yasser Mahmmod
- Department of Veterinary Sciences, Faculty of Health Sciences, Higher Colleges of Technology, Al Ain, United Arab Emirates
| | - Soliman M. Soliman
- Department of Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt
| | - Shaimaa A. A. Mo’men
- Department of Entomology, Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Walid F. A. Mosa
- Plant Production Department (Horticulture-Pomology), Faculty of Agriculture Saba Basha, Alexandria University, Alexandria, Egypt
| | - Nahed A. El-Wafai
- Department of Agricultural Microbiology, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Hamed E. Abou-Aly
- Department of Agricultural Microbiology, Faculty of Agriculture, Benha University, Benha, Egypt
| | - Basel Sitohy
- Department of Clinical Microbiology, Infection and Immunology, Umeå University, Umeå, Sweden
- Department of Radiation Sciences, Oncology, Umeå University, Umeå, Sweden
| | - Mohamed E. Abd El-Hack
- Department of Poultry Diseases, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Khaled A. El-Tarabily
- Department of Biology, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
- Khalifa Center for Genetic Engineering and Biotechnology, United Arab Emirates University, Al Ain, United Arab Emirates
- Harry Butler Institute, Murdoch University, Murdoch, WA, Australia
| | - Ahmed M. Saad
- Department of Biochemistry, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
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Massoud D, Fouda MMA, Sarhan M, Salama SG, Khalifa HS. Topical application of Aloe gel and/or olive oil combination promotes the wound healing properties of streptozotocin-induced diabetic rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:59727-59735. [PMID: 35394628 DOI: 10.1007/s11356-022-20100-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/01/2022] [Indexed: 06/14/2023]
Abstract
Diabetic wounds are characterized by a delayed closure rate due to the excess inflammation and the inhibition of angiogenesis. Natural products derived from Aloe vera have shown great promise due to their healing magnificent properties. Olive oil is another natural product with anti-microbial and anti-inflammatory properties that may contribute to the healing process. In the present investigation, we tried to evaluate the efficacy of topical application of Aloe gel and/or olive oil in the enhancement of diabetic wounds using histological and immunohistochemical analysis. Excisional wounds were created on the back skin of streptozotocin-induced diabetic rats. Topical treatments of Aloe gel and/or olive oil were applied separately and in a combination (AVO) daily for experimental groups. Macroscopic and microscopic observations of the excision wounds were monitored at time intervals (3, 6, 9, 14 days) post-wounding. Macroscopic observations of the AVO group exhibited almost complete healing at day 14, while other groups were still in progress. Similarly, immunohistochemical analysis of the AVO group showed a mild expression pattern of NF-κB.. While, the cell proliferation (Ki-67), and angiogenesis (CD34) markers were upregulated. Conclusively, the obtained results showed that the AVO combination effectively improved the healing process in diabetic excisional wounds with significant differences in the healing kinetics compared to wounds that received Aloe gel or olive oil separately.
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Affiliation(s)
- Diaa Massoud
- Department of Biology, College of Science, Jouf University, P.O. Box 2014, Sakaka, Al-Jouf, Saudi Arabia.
- Department of Zoology, Faculty of Science, Fayoum University, Fayoum, Egypt.
| | - Maged M A Fouda
- Department of Biology, College of Science, Jouf University, P.O. Box 2014, Sakaka, Al-Jouf, Saudi Arabia
- Department of Zoology, Faculty of Science, Al-Azhar University, Assiut, Egypt
| | - Moustafa Sarhan
- Department of Zoology, Faculty of Science, Al-Azhar University, Assiut, Egypt
| | - Shaimaa Gamal Salama
- Department of Botany and Microbiology, Faculty of Science, Damanhour University, Damanhour, Egypt
| | - Heba Saied Khalifa
- Department of Zoology, Faculty of Science, Damanhour University, Damanhour, Egypt
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Dascalu (Rusu) LM, Moldovan M, Sarosi C, Sava S, Dreanca A, Repciuc C, Purdoiu R, Nagy A, Badea ME, Paun AG, Badea IC, Chifor R. Photodynamic Therapy with Natural Photosensitizers in the Management of Periodontal Disease Induced in Rats. Gels 2022; 8:134. [PMID: 35200515 PMCID: PMC8872554 DOI: 10.3390/gels8020134] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 02/11/2022] [Accepted: 02/17/2022] [Indexed: 01/27/2023] Open
Abstract
This study aims to investigate the effect of new natural photosensitizers (PS) (based on oregano essential oil, curcuma extract, and arnica oil) through in vitro cytotoxicity and biological tests in rat-induced periodontal disease, treated with photodynamic therapy (aPDT). The cytotoxicity of PS was performed on human dental pulp mesenchymal stem cells (dMSCs) and human keratinocyte (HaCaT) cell lines. Periodontal disease was induced by ligation of the first mandibular molar of 25 rats, which were divided into 5 groups: control group, periodontitis group, Curcuma and aPDT-treated group, oregano and aPDT-treated group, and aPDT group. The animals were euthanized after 4 weeks of study. Computed tomography imaging has been used to evaluate alveolar bone loss. Hematological and histological evaluation showed a greater magnitude of the inflammatory response and severe destruction of the periodontal ligaments in the untreated group.. For the group with the induced periodontitis and treated with natural photosensitizers, the aPDT improved the results; this therapy could be an important adjuvant treatment. The obtained results of these preliminary studies encourage us to continue the research of periodontitis treated with natural photosensitizers activated by photodynamic therapy.
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Affiliation(s)
- Laura Monica Dascalu (Rusu)
- Department of Prosthodontics and Dental Materials, Iuliu Hatieganu University of Medicine and Pharmacy, 31 Avram Iancu Str., 400083 Cluj-Napoca, Romania;
| | - Marioara Moldovan
- Raluca Ripan Institute of Chemistry, Babes-Bolyai University, 30 Fantanele Str., 400294 Cluj-Napoca, Romania;
| | - Codruta Sarosi
- Raluca Ripan Institute of Chemistry, Babes-Bolyai University, 30 Fantanele Str., 400294 Cluj-Napoca, Romania;
| | - Sorina Sava
- Department of Prosthodontics and Dental Materials, Iuliu Hatieganu University of Medicine and Pharmacy, 31 Avram Iancu Str., 400083 Cluj-Napoca, Romania;
| | - Alexandra Dreanca
- Pathophysiology/Toxicology Department, Faculty of Veterinary Medicine, University of Agricultural Science and Veterinary Medicine, 3-5 Calea Manastur, 400372 Cluj-Napoca, Romania; (A.D.); (C.R.); (R.P.); (A.N.)
| | - Calin Repciuc
- Pathophysiology/Toxicology Department, Faculty of Veterinary Medicine, University of Agricultural Science and Veterinary Medicine, 3-5 Calea Manastur, 400372 Cluj-Napoca, Romania; (A.D.); (C.R.); (R.P.); (A.N.)
| | - Robert Purdoiu
- Pathophysiology/Toxicology Department, Faculty of Veterinary Medicine, University of Agricultural Science and Veterinary Medicine, 3-5 Calea Manastur, 400372 Cluj-Napoca, Romania; (A.D.); (C.R.); (R.P.); (A.N.)
| | - Andras Nagy
- Pathophysiology/Toxicology Department, Faculty of Veterinary Medicine, University of Agricultural Science and Veterinary Medicine, 3-5 Calea Manastur, 400372 Cluj-Napoca, Romania; (A.D.); (C.R.); (R.P.); (A.N.)
| | - Mîndra Eugenia Badea
- Department of Preventive Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 31 Avram Iancu Str., 400083 Cluj-Napoca, Romania; (M.E.B.); (I.C.B.); (R.C.)
| | - Ariadna Georgiana Paun
- Department Community Medicine, Iuliu Hațieganu University of Medicine and Pharmacy, 31 Avram Iancu Str., 400083 Cluj-Napoca, Romania;
| | - Iulia Clara Badea
- Department of Preventive Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 31 Avram Iancu Str., 400083 Cluj-Napoca, Romania; (M.E.B.); (I.C.B.); (R.C.)
| | - Radu Chifor
- Department of Preventive Dental Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, 31 Avram Iancu Str., 400083 Cluj-Napoca, Romania; (M.E.B.); (I.C.B.); (R.C.)
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Bhatt HD, McClain SA, Lee HM, Zimmerman T, Deng J, Johnson F, Gu Y, Golub LM. The Maximum-Tolerated Dose and Pharmacokinetics of a Novel Chemically Modified Curcumin in Rats. J Exp Pharmacol 2022; 14:73-85. [PMID: 35173493 PMCID: PMC8842656 DOI: 10.2147/jep.s341927] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 01/14/2022] [Indexed: 12/25/2022] Open
Abstract
Purpose CMC 2.24, a chemically modified curcumin, was developed as a novel, pleiotropic MMP-inhibitor to treat various inflammatory/collagenolytic diseases including periodontitis. To date, this compound has shown efficacy in vitro, in cell culture, and in vivo (oral administration) in mice, rats and dogs. In preparation for possible Phase I human clinical trials, the current study describes the maximum-tolerated-dose (MTD), pharmacokinetics (PK), and toxicology of CMC 2.24 in the rat model. Methods For the MTD study, 30 Sprague-Dawley rats were randomly distributed into 5 groups (3M/3F per group): Placebo (vehicle; carboxymethylcellulose) and CMC 2.24 at various doses (50, 100, 500, 1000 mg/kg/day), were administered once daily by oral gavage for 5 days. For the PK study, 24 rats were administered either Placebo or CMC 2.24 (100mg/kg/day) once daily for 28 days or only once (500 or 1000 mg/kg). Analysis of this test compound was done using LC/MS/MS for PK evaluation on blood samples drawn from rats at multiple time points. The animals were sacrificed after 5 or 28 days of treatment, and blood chemistry and serology were analyzed. Major organs (heart, lung, liver, kidney, spleen, intestine, brain) were histologically examined at necropsy. Results Orally administered, CMC 2.24 did not produce significant changes in body weight, food consumption or adverse events in the MTD and toxicology studies. Moreover, no obvious pathologic changes were observed based on histology, hematology, serum biochemistry, or necropsy compared to placebo-treated controls. The PK study demonstrated a peak-blood concentration (Cmax) at 45 mins after oral administration of 2.24 and a serum half-life of 10 hours. Conclusion In conclusion, CMC 2.24, orally administered to rats once a day, appears to be safe and effective at a wide range of doses, consistent with efficacy previously demonstrated in studies on animal models of various collagenolytic diseases, such as periodontitis, diabetes and cancer.
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Affiliation(s)
- Heta Dinesh Bhatt
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
- Correspondence: Heta Dinesh Bhatt, Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA, Tel +1 646 715-2925, Fax +1 631 632-9705, Email
| | - Steve A McClain
- Department of Dermatology and Department of Emergency Medicine, Stony Brook University, and McClain Laboratories LLC, Smithtown, NY, 11787, USA
| | - Hsi-Ming Lee
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Thomas Zimmerman
- Division of Laboratory Animal Resources (DLAR) at Stony Brook, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Jie Deng
- Department of Orthodontics, School of Stomatology, Peking University, Beijing, People’s Republic of China
| | - Francis Johnson
- Department of Chemistry and Pharmacological Sciences, School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Ying Gu
- Department of General Dentistry, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Lorne M Golub
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
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Yang S, Li Y, Liu C, Wu Y, Wan Z, Shen D. Pathogenesis and treatment of wound healing in patients with diabetes after tooth extraction. Front Endocrinol (Lausanne) 2022; 13:949535. [PMID: 36213270 PMCID: PMC9538860 DOI: 10.3389/fendo.2022.949535] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
Diabetes mellitus is a common systematic chronic disease amongst dental patients. The elevated glucose microenvironment can prolong the healing of tooth extraction sockets. Therefore, the promotion of healing up tooth extraction sockets is of great clinical importance to the patients with diabetes mellitus. The current evidence indicates the mechanism of the recovery period of extraction sockets in hyperglycaemia conditions from physiological, inflammation, immune, endocrine and neural aspects. New advancements have been made in varied curative approaches and drugs in the management of wound healing of tooth extraction sockets in diabetes. However, most of the interventions are still in the stage of animal experiments, and whether it can be put into clinical application still needs further explorations. Specifically, our work showed topical administration of plasma-rich growth factor, advanced platelet-rich fibrin, leukocyte- and platelet-rich fibrin and hyaluronic acid as well as maxillary immediate complete denture is regarded as a promising approach for clinical management of diabetic patients requiring extractions. Overall, recent studies present a blueprint for new advances in novel and effective approaches for this worldwide health ailment and tooth extraction sockets healing.
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Deng J, Golub LM, Lee HM, Raja V, Johnson F, Kucine A, Lee W, Xu TM, Gu Y. A Novel Modified-Curcumin Promotes Resolvin-Like Activity and Reduces Bone Loss in Diabetes-Induced Experimental Periodontitis. J Inflamm Res 2021; 14:5337-5347. [PMID: 34703272 PMCID: PMC8528548 DOI: 10.2147/jir.s330157] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/29/2021] [Indexed: 12/25/2022] Open
Abstract
PURPOSE Clinically, it is challenging to manage diabetic patients with periodontitis. Biochemically, both involve a wide range of inflammatory/collagenolytic conditions which exacerbate each other in a "bi-directional manner." However, standard treatments for this type of periodontitis rely on reducing the bacterial burden and less on controlling hyper-inflammation/excessive-collagenolysis. Thus, there is a crucial need for new therapeutic strategies to modulate this excessive host response and to promote enhanced resolution of inflammation. The aim of the current study is to evaluate the impact of a novel chemically-modified curcumin 2.24 (CMC2.24) on host inflammatory response in diabetic rats. METHODS Type I diabetes was induced by streptozotocin injection; periodontal breakdown then results as a complication of uncontrolled hyperglycemia. Non-diabetic rats served as controls. CMC2.24, or the vehicle-alone, was administered by oral gavage daily for 3 weeks to the diabetics. Micro-CT was used to analyze morphometric changes and quantify bone loss. MMPs were analyzed by gelatin zymography. Cell function was examined by cell migration assay, and cytokines and resolvins were measured by ELISA. RESULTS In this severe inflammatory disease model, administration of the pleiotropic CMC2.24 was found to normalize the excessive accumulation and impaired chemotactic activity of macrophages in peritoneal exudates, significantly decrease MMP-9 and pro-inflammatory cytokines to near normal levels, and markedly increase resolvin D1 (RvD1) levels in the thioglycolate-elicited peritoneal exudates (tPE). Similar effects on MMPs and RvD1 were observed in the non-elicited resident peritoneal washes (rPW). Regarding clinical relevance, CMC2.24 significantly inhibited the loss of alveolar bone height, volume and mineral density (ie, diabetes-induced periodontitis and osteoporosis). CONCLUSION In conclusion, treating hyperglycemic diabetic rats with CMC2.24 (a tri-ketonic phenylaminocarbonyl curcumin) promotes the resolution of local and systemic inflammation, reduces bone loss, in addition to suppressing collagenolytic MMPs and pro-inflammatory cytokines, suggesting a novel therapeutic strategy for treating periodontitis complicated by other chronic diseases.
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Affiliation(s)
- Jie Deng
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, People’s Republic of China
| | - Lorne M Golub
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Hsi-Ming Lee
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Veena Raja
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Francis Johnson
- Department of Chemistry and Pharmacological Sciences, School of Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Allan Kucine
- Department of Oral & Maxillofacial Surgery, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Wonsae Lee
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, 11794, USA
| | - Tian-Min Xu
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, 100081, People’s Republic of China
| | - Ying Gu
- Department of General Dentistry, School of Dental Medicine, Stony Brook University, Stony Brook, NY, 11794, USA
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VO TS, VO TTBC, VO TTTN, LAİ TNH. Turmeric (Curcuma longa L.): Chemical Components and Their Effective Clinical Applications. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2021. [DOI: 10.18596/jotcsa.913136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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12
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Barakat M, DiPietro LA, Chen L. Limited Treatment Options for Diabetic Wounds: Barriers to Clinical Translation Despite Therapeutic Success in Murine Models. Adv Wound Care (New Rochelle) 2021; 10:436-460. [PMID: 33050829 PMCID: PMC8236303 DOI: 10.1089/wound.2020.1254] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 10/12/2020] [Indexed: 12/15/2022] Open
Abstract
Significance: Millions of people worldwide suffer from diabetes mellitus and its complications, including chronic diabetic wounds. To date, there are few widely successful clinical therapies specific to diabetic wounds beyond general wound care, despite the vast number of scientific discoveries in the pathogenesis of defective healing in diabetes. Recent Advances: In recent years, murine animal models of diabetes have enabled the investigation of many possible therapeutics for diabetic wound care. These include specific cell types, growth factors, cytokines, peptides, small molecules, plant extracts, microRNAs, extracellular vesicles, novel wound dressings, mechanical interventions, bioengineered materials, and more. Critical Issues: Despite many research discoveries, few have been translated from their success in murine models to clinical use in humans. This massive gap between bench discovery and bedside application begs the simple and critical question: what is still missing? The complexity and multiplicity of the diabetic wound makes it an immensely challenging therapeutic target, and this lopsided progress highlights the need for new methods to overcome the bench-to-bedside barrier. How can laboratory discoveries in animal models be effectively translated to novel clinical therapies for human patients? Future Directions: As research continues to decipher deficient healing in diabetes, new approaches and considerations are required to ensure that these discoveries can become translational, clinically usable therapies. Clinical progress requires the development of new, more accurate models of the human disease state, multifaceted investigations that address multiple critical components in wound repair, and more innovative research strategies that harness both the existing knowledge and the potential of new advances across disciplines.
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Affiliation(s)
- May Barakat
- Center for Wound Repair and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Luisa A. DiPietro
- Center for Wound Repair and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Lin Chen
- Center for Wound Repair and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, Illinois, USA
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Novel Chemically Modified Curcumin (CMC) Derivatives Inhibit Tyrosinase Activity and Melanin Synthesis in B16F10 Mouse Melanoma Cells. Biomolecules 2021; 11:biom11050674. [PMID: 33946371 PMCID: PMC8145596 DOI: 10.3390/biom11050674] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/28/2021] [Accepted: 04/29/2021] [Indexed: 12/19/2022] Open
Abstract
Skin hyperpigmentation disorders arise due to excessive production of the macromolecular pigment melanin catalyzed by the enzyme tyrosinase. Recently, the therapeutic use of curcumin for inhibiting tyrosinase activity and production of melanin have been recognized, but poor stability and solubility have limited its use, which has inspired synthesis of curcumin analogs. Here, we investigated four novel chemically modified curcumin (CMC) derivatives (CMC2.14, CMC2.5, CMC2.23 and CMC2.24) and compared them to the parent compound curcumin (PC) for inhibition of in vitro tyrosinase activity using two substrates for monophenolase and diphenolase activities of the enzyme and for diminution of cellular melanogenesis. Enzyme kinetics were analyzed using Lineweaver-Burk and Dixon plots and nonlinear curve-fitting to determine the mechanism for tyrosinase inhibition. Copper chelating activity, using pyrocatechol violet dye indicator assay, and antioxidant activity, using a DPPH radical scavenging assay, were also conducted. Next, the capacity of these derivatives to inhibit tyrosinase-catalyzed melanogenesis was studied in B16F10 mouse melanoma cells and the mechanisms of inhibition were elucidated. Inhibition mechanisms were studied by measuring intracellular tyrosinase activity, cell-free and intracellular α-glucosidase enzyme activity, and effects on MITF protein level and cAMP maturation factor. Our results showed that CMC2.24 showed the greatest efficacy as a tyrosinase inhibitor of all the CMCs and was better than PC as well as a popular tyrosinase inhibitor-kojic acid. Both CMC2.24 and CMC2.23 inhibited tyrosinase enzyme activity by a mixed mode of inhibition with a predominant competitive mode. In addition, CMC2.24 as well as CMC2.23 showed a comparable robust efficacy in inhibiting melanogenesis in cultured melanocytes. Furthermore, after removal of CMC2.24 or CMC2.23 from the medium, we could demonstrate a partial recovery of the suppressed intracellular tyrosinase activity in the melanocytes. Our results provide a proof-of-principle for the novel use of the CMCs that shows them to be far superior to the parent compound, curcumin, for skin depigmentation.
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Choi HMC, Cheung AKK, Ng MCH, Zheng Y, Jan YK, Cheing GLY. Indentation Stiffness Measurement by an Optical Coherence Tomography-Based Air-Jet Indentation System Can Reflect Type I Collagen Abundance and Organisation in Diabetic Wounds. Front Bioeng Biotechnol 2021; 9:648453. [PMID: 33748093 PMCID: PMC7969662 DOI: 10.3389/fbioe.2021.648453] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 02/09/2021] [Indexed: 11/13/2022] Open
Abstract
There is a lack of quantitative and non-invasive clinical biomechanical assessment tools for diabetic foot ulcers. Our previous study reported that the indentation stiffness measured by an optical coherence tomography-based air-jet indentation system in a non-contact and non-invasive manner may reflect the tensile properties of diabetic wounds. As the tensile properties are known to be contributed by type I collagen, this study was aimed to establish the correlations between the indentation stiffness, and type I collagen abundance and organisation, in order to further justify and characterise the in vivo indentation stiffness measurement in diabetic wounds. In a male streptozotocin-induced diabetic rat model, indentation stiffness, and type I collagen abundance and organisation of excisional wounds were quantified and examined using the optical coherence tomography-based air-jet indentation system and picrosirius red polarised light microscopy, respectively, on post-wounding days 3, 5, 7, 10, 14, and 21. The results showed significant negative correlations between indentation stiffness at the wound centre, and the collagen abundance and organisation. The correlations between the indentation stiffness, as well as collagen abundance and organisation of diabetic wounds suggest that the optical coherence tomography-based air-jet indentation system can potentially be used to quantitatively and non-invasively monitor diabetic wound healing in clinical settings, clinical research or preclinical research.
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Affiliation(s)
- Harry Ming Chun Choi
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Alex Kwok-Kuen Cheung
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Michelle Chun Har Ng
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Yongping Zheng
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong
| | - Yih-Kuen Jan
- Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Gladys Lai Ying Cheing
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Kowloon, Hong Kong
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15
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Deng J, Golub LM, Lee HM, Bhatt HD, Hong HL, Johnson F, Scaduto J, Zimmerman T, Gu Y. A Novel Chemically-Modified Curcumin 2.24: Short-Term Systemic Therapy for Natural Periodontitis in Dogs. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.609795] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Periodontitis, a destructive periodontal inflammatory disease, negatively impacts oral-health related quality of life. It's characterized by the generation of inflammatory mediators and the excess-production of collagenolytic tissue-destructive enzymes (especially matrix metalloproteinases, MMPs). Many biomarkers can be used to define/diagnose disease progression. However, there is still a critical lack of specific, fast, and reliable biomarkers that correlate well with early response to treatment, which can be used to predict/monitor disease. Here, we report that an early marker, MMP-9, was found to be sensitive in response to a 1-month systemic therapy of CMC2.24, a novel chemically-modified curcumin, in beagle dogs with naturally-occurring periodontitis. In brief, eight adult female dogs with generalized periodontitis were distributed into placebo and treatment groups (n = 4/group). After a 1-h full-mouth scaling and root planing at time 0, placebo or CMC2.24 (10 mg/kg) capsules were orally-administered once/day for 1-month. Clinical periodontal parameters were measured at time 0 and 1-month; in addition, peripheral blood samples from these dogs were collected and analyzed for the pro-, activated-, and total-forms of MMP-9 by gelatin zymography. Interestingly, we found that the 1-month systemic therapy of CMC2.24 did appear to significantly reduce both pro- and activated-MMP-9 in peripheral blood at this early stage compared to placebo, prior to apparent clinical improvements seen at a later stage in a previous study (3-months). Thus, MMP-9 may serve as an early/sensitive biomarker that can precede/predict future clinical changes in disease severity and response to treatment which we observed in the long-term study in this dog model of natural periodontitis.
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Soleimani H, Amini A, Abdollahifar MA, Norouzian M, Kouhkheil R, Mostafavinia A, Ghoreishi SK, Bayat S, Chien S, Bayat M. Combined effects of photobiomodulation and curcumin on mast cells and wound strength in wound healing of streptozotocin-induced diabetes in rats. Lasers Med Sci 2021; 36:375-386. [PMID: 32696423 DOI: 10.1007/s10103-020-03053-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 06/02/2020] [Indexed: 12/24/2022]
Abstract
We investigated the probable involvement of mast cell degranulation and their numbers in the remodeling step of wound healing in a diabetic ischemic skin wound model treated with photobiomodulation plus curcumin. A total of 108 adult male Wistar rats were randomized into one healthy control and five diabetic groups. Type I diabetes was inflicted in 90 of the 108 rats. After 1 month, an excisional wound was generated in each of the 108 rats. There were one healthy group (group 1) and five diabetic groups as follows: group 2 was the untreated diabetic control group and group 3 rats were treated with sesame oil. Rats in group 4 were treated with photobiomodulation (890 nm, 890 ± 10 nm, 80 Hz, 0.2 J/cm2) and those in group 5 received curcumin dissolved in sesame oil. Group 6 rats were treated with photobiomodulation and curcumin. We conducted stereological and tensiometric tests on days 4, 7, and 15 after treatment. The results indicated that photobiomodulation significantly improved wound strength in the diabetic rats and significantly decreased the total numbers of mast cells. The diabetic control group had significantly reduced tensiometric properties of the healing wounds and a significant increase in the total numbers of mast cells. Photobiomodulation significantly improved the healing process in diabetic animals and significantly decreased the total number of mast cells. The increased numbers of mast cells in the diabetic control group negatively affected tensiometric properties of the ischemic skin wound.
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Affiliation(s)
- Hasan Soleimani
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdollah Amini
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad-Amin Abdollahifar
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohsen Norouzian
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Reza Kouhkheil
- Department of Anatomical Sciences, Zanjan University of Medical Sciences, Zanjan, Iran
| | - Atarodsadat Mostafavinia
- Department of Anatomy, Faculty of Medicine, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Sahar Bayat
- Illinois Institute of Technology, Chicago, IL, USA
| | - Sufan Chien
- Price Institute of Surgical Research, University of Louisville, Louisville, KY, USA.
- Noveratech LLC of Louisville, Louisville, KY, USA.
| | - Mohammad Bayat
- Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Price Institute of Surgical Research, University of Louisville, Louisville, KY, USA.
- Noveratech LLC of Louisville, Louisville, KY, USA.
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17
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Pharmacological activation of Nrf2 promotes wound healing. Eur J Pharmacol 2020; 886:173395. [PMID: 32710954 DOI: 10.1016/j.ejphar.2020.173395] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 07/09/2020] [Accepted: 07/20/2020] [Indexed: 02/06/2023]
Abstract
Wound repair and regeneration is a complex orchestrated process, comprising several phases interconnecting various cellular events and triggering multiple intracellular molecular pathways in damaged cells and tissues. In several metabolic disorders including diabetes mellitus, delay in wound healing due to elevated levels of cellular stress poses a key challenge. Several therapeutic wound dressing materials and strategies including hyperbaric oxygen therapy and negative pressure wound therapy have been developed to accelerate repair and restore cellular homeostasis at the wound site. Further, tremendous progress has been made in identification of transcriptional regulators involved in the process of wound healing. Nuclear factor erythroid 2-related factor 2 (Nrf2), a redox sensitive transcription factor, is the key regulator of intracellular redox homeostasis which induces the expression of cytoprotective genes and increases the production of antioxidants that scavenge free radicals. Activators of Nrf2 have been reported to combat oxidative stress and enhance the process of wound healing in several pathophysiological conditions, including diabetes and its complications such as diabetic foot ulcer, and chronic kidney disease, and diabetic nephropathy. Several bioactive compounds have been reported to reduce cellular stress, and thus accelerate cell proliferation, neovascularization results in repairing damaged tissues by the activation of the transcription factor, Nrf2. This review is focused on the strategies for diabetic wound healing and the highlights the role of bioactive compounds that activate the Nrf2 signaling and revitalize the cellular and molecular mechanism in the chronic wound niche, regulate and restore redox homeostasis thereby promoting wound repair and regeneration.
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18
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Khodaie SA, Emadi F, Naseri M, Kamalinejad M, Riahi SM, Alijaniha F, Roghani M. The Effect of Myrtus communis Aqueous Extract-Containing Gel on Wound Healing in Streptozotocin-Induced Diabetic Rats. Curr Drug Discov Technol 2020; 18:542-547. [PMID: 32652914 DOI: 10.2174/1570163817666200712163956] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND The medicinal plant Myrtus communis L. (Myrtle) has properties, including anti-inflammatory and wound healing in Persian Medicine. OBJECTIVE The objective of this study was to explore the wound healing potential of the local application of a gel containing aqueous extract of the plant berry in streptozotocin (STZ)-induced diabetic rats. METHODS Seven days after diabetes establishment, full-thickness excision skin wounds were made in normal and diabetic rats where treated groups received topical application of a gel containing 6% aqueous extract of myrtle berries for 3 weeks. The rate of wound healing and the level of epidermal and dermal maturation in the wound tissue were determined. RESULTS The results showed that after 3 and 7 days of wound injury, the gel significantly improved wound healing by accelerating epidermal and dermal maturation in diabetic rats with no significant effect in the control group. However, the wounds of all groups almost completely healed after 3 weeks. CONCLUSION These results demonstrate that aqueous extract of myrtle possesses a definite wound healing potential in diabetic conditions. The present findings may suggest the use of topical myrtle berries aqueous extract gel 6% to treat and manage intractable diabetic wounds.
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Affiliation(s)
- Seyed-Ali Khodaie
- Department of Traditional Persian Medicine, Faculty of Medicine, Shahed University, Tehran, Iran
| | - Fatemeh Emadi
- Department of Traditional Persian Medicine, Faculty of Medicine, Shahed University, Tehran, Iran
| | - Mohsen Naseri
- Traditional Medicine Clinical Trial Research Center, Shahed University, Tehran, Iran
| | - Mohammad Kamalinejad
- School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Riahi
- Cardiovascular Diseases Research Center, Department of Epidemiology and Biostatistics, School of Medicine, Birjand University of Medical Sciences, Birjand, Iran
| | - Fatemeh Alijaniha
- Traditional Medicine Clinical Trial Research Center, Shahed University, Tehran, Iran
| | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran
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Xu L, Mei L, Zhao R, Yi J, Jiang Y, Li R, Zhao Y, Pi L, Li Y. The effects of intro-oral parathyroid hormone on the healing of tooth extraction socket: an experimental study on hyperglycemic rats. J Appl Oral Sci 2020; 28:e20190690. [PMID: 32348445 PMCID: PMC7185986 DOI: 10.1590/1678-7757-2019-0690] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 02/24/2020] [Indexed: 02/05/2023] Open
Abstract
Objective To investigate the effects of intro-oral injection of parathyroid hormone (PTH) on tooth extraction wound healing in hyperglycemic rats. Methodology 60 male Sprague-Dawley rats were randomly divided into the normal group (n=30) and DM group (n=30). Type 1 diabetes mellitus (DM) was induced by streptozotocin. After extracting the left first molar of all rats, each group was further divided into 3 subgroups (n=10 per subgroup), receiving the administration of intermittent PTH, continuous PTH and saline (control), respectively. The intermittent-PTH group received intra-oral injection of PTH three times per week for two weeks. A thermosensitive controlled-release hydrogel was synthesized for continuous-PTH administration. The serum chemistry was determined to evaluate the systemic condition. All animals were sacrificed after 14 days. Micro-computed tomography (Micro-CT) and histological analyses were used to evaluate the healing of extraction sockets. Results The level of serum glucose in the DM groups was significantly higher than that in the non-DM groups (p<0.05); the level of serum calcium was similar in all groups (p>0.05). Micro-CT analysis showed that the DM group had a significantly lower alveolar bone trabecular number (Tb.N) and higher trabecular separation (Tb.Sp) than the normal group (p<0.05). The histological analyses showed that no significant difference in the amount of new bone (hard tissue) formation was found between the PTH and non-PTH groups (p>0.05). Conclusions Bone formation in the extraction socket of the type 1 diabetic rats was reduced. PTH did not improve the healing of hard and soft tissues. The different PTH administration regimes (continuous vs. intermittent) had similar effect on tissue healing. These results demonstrated that the metabolic characteristics of the hyperglycemic rats produced a condition that was unable to respond to PTH treatment.
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Affiliation(s)
- Lin Xu
- National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Li Mei
- Sir John Walsh Research Institute, Faculty of Dentistry, University of Otago, New Zealand
| | - Rui Zhao
- National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jianru Yi
- National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yixuan Jiang
- National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ruomei Li
- Ninth People's Hospital, School of Stomatology, Shanghai Jiao Tong University, Shanghai, China
| | - Youliang Zhao
- Department of emergency department, West China Second Hospital, Sichuan University, Chengdu, China
| | - Li Pi
- West China School of Public Health, Sichuan University, Chengdu, China
| | - Yu Li
- National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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Deng J, Golub LM, Lee HM, Lin MC, Bhatt HD, Hong HL, Johnson F, Scaduto J, Zimmerman T, Gu Y. Chemically-Modified Curcumin 2.24: A Novel Systemic Therapy for Natural Periodontitis in Dogs. J Exp Pharmacol 2020; 12:47-60. [PMID: 32104105 PMCID: PMC7020920 DOI: 10.2147/jep.s236792] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 01/15/2020] [Indexed: 12/13/2022] Open
Abstract
Purpose To determine the effect of a pleiotropic MMP-inhibitor, a novel chemically-modified curcumin 2.24 (CMC2.24), on the clinical and biological measures of naturally-occurring periodontitis in the beagle dog. Methods Eight adult female dogs with generalized periodontitis were distributed into two groups: Placebo and Treatment (n=4/group). After a 1-hr full-mouth scaling and root planing (SRP) at time 0, placebo or CMC2.24 (10mg/kg) capsules were orally administered once/day for 3 months. Various clinical periodontal parameters (e.g., pocket depth, gingival index) were measured at different time periods (0, 1, 2 and 3 months), and gingival crevicular fluid (GCF) samples and gingival tissue biopsies (3-month) were analyzed for cytokines, MMPs and cell-signaling molecules. Standardized radiographs were taken at 0 and 3-month; in addition, peripheral blood monocytes/macrophages from these dogs at 3-month were cultured and analyzed for the pro-, activated-, and total-forms of both MMP-2 and MMP-9. Results CMC2.24 treatment significantly reduced gingival inflammation (gingival index, GCF flow), pocket depth (PD), and the numbers of pockets (PD≥4mm), compared to placebo. CMC2.24 also significantly reduced MMP-9 and MMP-2 (primarily in the activated-form) in gingival tissue, alveolar bone loss, and reduced GCF IL-1β. Cell-signaling molecules, TLR-2 (but not TLR-4) and p38 MAPK, responded to CMC2.24 in a pattern consistent with reductions in inflammation and collagenolysis. In culture, CMC2.24 had no effect on pro-MMP-9 but essentially completely blocked the conversion of pro- to activated-MMP-9 in systemic blood-derived monocytes/macrophages from these dogs. Conclusion In the beagle dog model of natural periodontitis, orally administered CMC2.24 (a novel triketonic phenylaminocarbonyl-curcumin) significantly decreased clinical measures of periodontitis as well as pro-inflammatory cytokines, MMPs, and cell-signaling molecules. These and previous studies, using other in vitro and in vivo models, support the clinical potential of CMC2.24 as a novel adjunct to SRP in the treatment of chronic periodontitis.
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Affiliation(s)
- Jie Deng
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Lorne M Golub
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Hsi-Ming Lee
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Michael C Lin
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Heta Dinesh Bhatt
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Hou-Lin Hong
- Department of Public Health, School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | - Francis Johnson
- Department of Chemistry and Pharmacological Sciences, School of Medicine, Stony Brook University, Stony Brook, NY 11794, USA
| | | | - Thomas Zimmerman
- Division of Laboratory Animal Resources (DLAR) at Stony Brook, Stony Brook University, Stony Brook, NY 11794, USA
| | - Ying Gu
- Department of General Dentistry, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA
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21
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Abstract
With the recognition in the 1960s and 1970s of the periodontopathic importance of the microbial biofilm and its specific anaerobic microorganisms, periodontitis was treated as an infectious disease (more recently, as a dysbiosis). Subsequently, in the 1980s, host-response mechanisms were identified as the mediators of the destruction of the collagen-rich periodontal tissues (gingiva, periodontal ligament, alveolar bone), and the periodontopathogens were now regarded as the "trigger" of the inflammatory/collagenolytic response that characterizes actively destructive periodontitis. Also at this time a new pharmacologic strategy emerged, entitled "host-modulation therapy", based on 2 major findings: (1) that the ability of tetracycline antibiotics to inhibit periodontal breakdown was due (in large part) to their previously unrecognized ability to inhibit the host-derived matrix metalloproteinases (notably, the collagenases, gelatinases, macrophage metalloelastase), and by mechanisms unrelated to the antimicrobial properties of these medications; and (2) that nonsteroidal anti-inflammatory drugs, such as flurbiprofen, again by nonantimicrobial mechanisms, could reduce the severity of periodontitis (however, the adverse effects of long-term therapy precluded their development as safe and effective host-modulatory agents). Additional mechanistic studies resulted in the development of novel nonantimicrobial formulations (Periostat® [now generic] and Oracea®) and compositions of tetracyclines (notably chemically modified tetracycline-3) as host-modulator drugs for periodontitis, arthritis, cardiovascular and pulmonary diseases, cancer, and, more recently, for local and systemic bone loss in postmenopausal women. Identification of the cation-binding active site in the tetraphenolic chemically modified tetracycline molecules drove the development of a new category of matrix metalloproteinase-inhibitor compounds, with a similar active site, the biphenolic chemically modified curcumins. A lead compound, chemically modified curcumin 2.24, has demonstrated safety and efficacy in vitro, in cell culture, and in vivo in mouse, rat, rabbit, and dog models of disease. In conclusion, novel host-modulation compounds have shown significant promise as adjuncts to traditional local therapy in the clinical management of periodontal disease; appear to reduce systemic complications of this all-too-common "inflammatory/collagenolytic" disease; and Oracea® is now commonly prescribed for inflammatory dermatologic diseases.
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Affiliation(s)
- Lorne M. Golub
- Department of Oral Biology & PathologySchool of Dental MedicineStony Brook UniversityStony BrookNew York, USA
| | - Hsi‐Ming Lee
- Department of Oral Biology & PathologySchool of Dental MedicineStony Brook UniversityStony BrookNew York, USA
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22
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Yu L, Chen Y, Xu Y, He T, Wei Y, He R. D-ribose is elevated in T1DM patients and can be involved in the onset of encephalopathy. Aging (Albany NY) 2019; 11:4943-4969. [PMID: 31307014 PMCID: PMC6682534 DOI: 10.18632/aging.102089] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/04/2019] [Indexed: 12/25/2022]
Abstract
Although many mechanisms have been proposed for diabetic encephalopathy in type 2 diabetes mellitus (T2DM), the risk factors for cognitive impairment in type 1 diabetes mellitus (T1DM) are less clear. Here, we show that streptozotocin (STZ)-induced T1DM rats showed cognitive impairment in both Y maze and Morris water maze assays, accompanied with D-ribose was significantly increased in blood and urine, in addition to D-glucose. Furthermore, advanced glycation end products (AGE), Tau hyperphosphorylation and neuronal death in the hippocampal CA4/DG region were detected in T1DM rats. The expression and activity of transketolase (TKT), an important enzyme in the pentose shunt, were decreased in the brain, indicating that TKT may be involved in D-ribose metabolism in T1DM. Support for these change was demonstrated by the activation of TKT with benfotiamine (BTMP) treatment. Decreased D-ribose levels but not D-glucose levels; markedly reduced AGE accumulation, Tau hyperphosphorylation, and neuronal death; and improved cognitive ability in T1DM rats were shown after BTMP administration. In clinical investigation, T1DM patients had high D-ribose levels in both urine and serum. Our work suggests that D-ribose is involved in the cognitive impairment in T1DM and may provide a potentially novel target for treating diabetic encephalopathy.
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Affiliation(s)
- Lexiang Yu
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, University of Chinese Academy of Sciences, Beijing 100101, China
| | - Yao Chen
- School of Basic Medical Sciences of Southwest Medical University, Luzhou 646000, China
| | - Yong Xu
- Affiliated Hospital of Southwest Medical University, Luzhou 646000, China
| | - Tao He
- School of Basic Medical Sciences of Southwest Medical University, Luzhou 646000, China
| | - Yan Wei
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, University of Chinese Academy of Sciences, Beijing 100101, China
- CAS Key Laboratory of Mental Health, Institute of Psychology, Chinese Academy of Sciences, Beijing 100101, China
| | - Rongqiao He
- School of Basic Medical Sciences of Southwest Medical University, Luzhou 646000, China
- State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, University of Chinese Academy of Sciences, Beijing 100101, China
- Alzheimer’s Disease Center, Beijing Institute for Brain Disorders, Center for Brain Disorders Research, Capital Medical University, Beijing 100069, China
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23
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Kamar SS, Abdel-Kader DH, Rashed LA. Beneficial effect of Curcumin Nanoparticles-Hydrogel on excisional skin wound healing in type-I diabetic rat: Histological and immunohistochemical studies. Ann Anat 2019; 222:94-102. [DOI: 10.1016/j.aanat.2018.11.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 11/12/2018] [Accepted: 11/23/2018] [Indexed: 01/15/2023]
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Wang HH, Lee HM, Raja V, Hou W, Iacono VJ, Scaduto J, Johnson F, Golub LM, Gu Y. Enhanced efficacy of chemically modified curcumin in experimental periodontitis: systemic implications. J Exp Pharmacol 2019; 11:1-14. [PMID: 30774454 PMCID: PMC6350653 DOI: 10.2147/jep.s171119] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Introduction Dental microbial biofilm initiates gingival inflammation, and its suppression is the current dominant strategy for treating periodontitis. However, the host response to the biofilm is largely responsible for the connective tissue breakdown including alveolar bone loss, which is mediated by proinflammatory cytokines and matrix metalloproteinases (MMPs). Methods The current study compared the efficacy of a novel host-modulation compound, a chemically modified curcumin (CMC 2.24), to that of its parent compound (natural curcumin), in both lipopolysaccharide (LPS) (a bacterial endotoxin)-induced cell culture and in vivo models of periodontitis. Results In cell culture, both CMC 2.24 and curcumin appeared similarly effective in suppressing LPS-induced cytokine (IL-1β and TNF-α) secretion by mononuclear inflammatory cells; however, CMC 2.24 significantly reduced MMP-9 secretion by 78% (P<0.05) whereas curcumin was ineffective. In vivo, CMC 2.24 administration was more effective than curcumin in suppressing (a) IL-1β in gingival tissue and (b) MMP-9 in both gingiva and plasma, the latter indicating a reduced severity of systemic inflammation. The difference in primary clinical outcome between the two treatments was that CMC 2.24 reduced the pathologically excessive alveolar bone loss, assessed morphometrically at multiple sites, by 80%-90% (P<0.01), whereas curcumin, surprisingly, either increased (P<0.05) or had no effect on alveolar bone loss at these sites. Conclusion These data, plus that from previous studies, support the therapeutic potential of CMC 2.24 in the management of inflammatory periodontal disease and its ability to reduce the risk of associated systemic diseases. The current study also indicates that the MMP-9 inhibitor efficacy is associated with the ability of CMC 2.24 (but not curcumin) to inhibit alveolar bone loss in this rat model of periodontitis.
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Affiliation(s)
- Howard H Wang
- Department of Periodontology and Endodontology, School of Dental Medicine, State University of New York at Buffalo, Buffalo, NY, USA
| | - Hsi-Ming Lee
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Veena Raja
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Wei Hou
- Department of Preventive Medicine, School of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Vincent J Iacono
- Department of Periodontology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | | | - Francis Johnson
- Department of Chemistry, Stony Brook University, Stony Brook, NY, USA.,Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY, USA
| | - Lorne M Golub
- Department of Oral Biology and Pathology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Ying Gu
- Department of General Dentistry, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA,
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An improvement in acute wound healing in mice by the combined application of photobiomodulation and curcumin-loaded iron particles. Lasers Med Sci 2018; 34:779-791. [PMID: 30393833 DOI: 10.1007/s10103-018-2664-9] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 10/10/2018] [Indexed: 01/14/2023]
Abstract
Here, we examined the combined effect of pulse wave photobiomodulation (PBM) with curcumin-loaded superparamagnetic iron oxide (Fe3O4) nanoparticles (curcumin), in an experimental mouse model of acute skin wound. Thirty male adult mice were randomly allocated into 5 groups. Group 1 was served as the control group. Group 2 was a placebo and received distilled water, as a carrier of curcumin. Group 3 received laser (890 nm, 80 Hz, 0.2 J/cm2). Group 4 received curcumin by taking four injections around the wound. Group 5 received laser + curcumin. One full-thickness excisional round wound was made on the back of all the mice. On days 0, 4, 7, and 14, bacterial flora, wound surface area, and tensile strength were examined and microbiological examinations were performed. In case of wound closure, the two-way ANOVA shows that wound surface area of entire groups decreased progressively. However, the decrease in laser + curcumin and laser groups, and especially data from laser + curcumin group were statistically more significant, in comparison with the other groups (F statistics = 2.28, sig = 0.019). In terms of microbiology, the two-way ANOVA showed that laser, and laser + curcumin groups have statistically a lower bacterial count than the curcumin, control, and carrier groups (F statistics = 35, sig = 0 = 000). Finally, the one-way ANOVA showed that laser + curcumin, curcumin, and curcumin significantly increased wound strength, compared to the control and carrier groups. Furthermore, laser + curcumin significantly increased wound strength, compared to the control, laser, and curcumin groups (LSD test, p = 0.003, p = 0.002, and p = 0.005, respectively). In conclusion, curcumin nanoparticles, pulse wave laser, and pulse wave laser + curcumin nanoparticles accelerate wound healing, through a significant increase in wound closure rate, as well as wound strength, and a significant decrease in Staphylococcus aureus counts. Furthermore, the statistical analysis of our data suggests that the combined treatment of pulse wave laser + curcumin nanoparticles enhances the wound closure rate, and wound strength, compared to the laser and curcumin nanoparticles alone.
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26
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Curcumin Modulates DNA Methyltransferase Functions in a Cellular Model of Diabetic Retinopathy. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:5407482. [PMID: 30057682 PMCID: PMC6051042 DOI: 10.1155/2018/5407482] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 06/05/2018] [Indexed: 12/12/2022]
Abstract
Hyperglycaemia-induced oxidative stress appears to be involved in the aetiology of diabetic retinopathy (DR), a major public health issue, via altering DNA methylation process. We investigated the effect of hyperglycaemia on retinal DNA methyltransferase (DNMT) expression in diabetic mice, using Gene Expression Omnibus datasets. We also evaluated the effect of curcumin both on high glucose-induced reactive oxygen species (ROS) production and altered DNMT functions, in a cellular model of DR. We observed that three months of hyperglycaemia, in insulin-deficient Ins2Akita mice, decrease DNMT1 and DNMT3a expression levels. In retinal pigment epithelium (RPE) cells, we also demonstrated that high glucose-induced ROS production precedes upregulation of DNMT expression and activity, suggesting that changes in DNMT function could be mediated by oxidative stress via a potential dual effect. The early effect results in decreased DNMT activity, accompanied by the highest ROS production, while long-term oxidative stress increases DNMT activity and DNMT1 expression. Interestingly, treatment with 25 μM curcumin for 6 hours restores ROS production, as well as DNMT functions, altered by the exposure of RPE to acute and chronic high glucose concentration. Our study suggests that curcumin may represent an effective antioxidant compound against DR, via restoring oxidative stress and DNMT functions, though further studies are recommended.
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27
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Mallangada NA, Vargas JM, Thomas S, DiGiovanni MG, Vaeth BM, Nemesure MD, Wang R, LaComb JF, Williams JL, Golub LM, Johnson F, Mackenzie GG. A novel tricarbonylmethane agent (CMC2.24) reduces human pancreatic tumor growth in mice by targeting Ras. Mol Carcinog 2018; 57:1130-1143. [PMID: 29683208 DOI: 10.1002/mc.22830] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 02/24/2018] [Accepted: 04/17/2018] [Indexed: 12/28/2022]
Abstract
Pancreatic Cancer (PC) is a deadly disease in need of new therapeutic options. We recently developed a novel tricarbonylmethane agent (CMC2.24) as a therapeutic agent for PC, and evaluated its efficacy in preclinical models of PC. CMC2.24 inhibited the growth of various human PC cell lines in a concentration and time-dependent manner. Normal human pancreatic epithelial cells were resistant to CMC2.24, indicating selectivity. CMC2.24 reduced the growth of subcutaneous and orthotopic PC xenografts in mice by up to 65% (P < 0.02), and the growth of a human patient-derived tumor xenograft by 47.5% (P < 0.03 vs vehicle control). Mechanistically, CMC2.24 inhibited the Ras-RAF-MEK-ERK pathway. Based on Ras Pull-Down Assays, CMC2.24 inhibited Ras-GTP, the active form of Ras, in MIA PaCa-2 cells and in pancreatic acinar explants isolated from Kras mutant mice, by 90.3% and 89.1%, respectively (P < 0.01, for both). The inhibition of active Ras led to an inhibition of c-RAF, MEK, and ERK phosphorylation by 93%, 91%, and 87%, respectively (P < 0.02, for all) in PC xenografts. Furthermore, c-RAF overexpression partially rescued MIA PaCa-2 cells from the cell growth inhibition by CMC2.24. In addition, downstream of ERK, CMC2.24 inhibited STAT3 phosphorylation levels at the serine 727 residue, enhanced the levels of superoxide anion in mitochondria, and induced intrinsic apoptosis as shown by the release of cytochrome c from the mitochondria to the cytosol and the further cleavage of caspase 9 in PC cells. In conclusion, CMC2.24, a potential Ras inhibitor, is an efficacious agent for PC treatment in preclinical models, deserving further evaluation.
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Affiliation(s)
- Naveen A Mallangada
- Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, New York
| | - Joselin M Vargas
- Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, New York
| | - Swaroopa Thomas
- Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, New York
| | - Matthew G DiGiovanni
- Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, New York
| | - Brandon M Vaeth
- Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, New York
| | - Matthew D Nemesure
- Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, New York
| | - Ruixue Wang
- Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, New York
| | - Joseph F LaComb
- Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, New York
| | - Jennie L Williams
- Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, New York
| | - Lorne M Golub
- Department of Oral Biology and Pathology, Stony Brook University, Stony Brook, New York
| | - Francis Johnson
- Departments of Chemistry and of Pharmacological Sciences, Stony Brook University, Stony Brook, New York
| | - Gerardo G Mackenzie
- Department of Family, Population and Preventive Medicine, Stony Brook University, Stony Brook, New York.,Stony Brook Cancer Center, Stony Brook, New York.,Department of Nutrition, University of California, Davis, California
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28
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Local administration of curcumin-loaded nanoparticles effectively inhibits inflammation and bone resorption associated with experimental periodontal disease. Sci Rep 2018; 8:6652. [PMID: 29703905 PMCID: PMC5923426 DOI: 10.1038/s41598-018-24866-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Accepted: 03/13/2018] [Indexed: 01/17/2023] Open
Abstract
There is evidence indicating that curcumin has multiple biological activities, including anti-inflammatory properties. In vitro and in vivo studies demonstrate that curcumin may attenuate inflammation and the connective tissue destruction associated with periodontal disease. Most of these studies use systemic administration, and considering the site-specific nature of periodontal disease and also the poor pharmacodynamic properties of curcumin, we conducted this proof of principle study to assess the biological effect of the local administration of curcumin in a nanoparticle vehicle on experimental periodontal disease. We used 16 rats divided into two groups of 8 animals according to the induction of experimental periodontal disease by bilateral injections of LPS or of the vehicle control directly into the gingival tissues 3×/week for 4 weeks. The same volume of curcumin-loaded nanoparticles or of nanoparticle vehicle was injected into the same sites 2×/week. µCT analysis showed that local administration of curcumin resulted in a complete inhibition of inflammatory bone resorption and in a significant decrease of both osteoclast counts and of the inflammatory infiltrate; as well as a marked attenuation of p38 MAPK and NF-kB activation. We conclude that local administration of curcumin-loaded nanoparticles effectively inhibited inflammation and bone resorption associated with experimental periodontal disease.
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29
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Kunnumakkara AB, Bordoloi D, Padmavathi G, Monisha J, Roy NK, Prasad S, Aggarwal BB. Curcumin, the golden nutraceutical: multitargeting for multiple chronic diseases. Br J Pharmacol 2017; 174:1325-1348. [PMID: 27638428 PMCID: PMC5429333 DOI: 10.1111/bph.13621] [Citation(s) in RCA: 601] [Impact Index Per Article: 85.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 08/15/2016] [Accepted: 08/18/2016] [Indexed: 12/19/2022] Open
Abstract
Curcumin, a yellow pigment in the Indian spice Turmeric (Curcuma longa), which is chemically known as diferuloylmethane, was first isolated exactly two centuries ago in 1815 by two German Scientists, Vogel and Pelletier. However, according to the pubmed database, the first study on its biological activity as an antibacterial agent was published in 1949 in Nature and the first clinical trial was reported in The Lancet in 1937. Although the current database indicates almost 9000 publications on curcumin, until 1990 there were less than 100 papers published on this nutraceutical. At the molecular level, this multitargeted agent has been shown to exhibit anti-inflammatory activity through the suppression of numerous cell signalling pathways including NF-κB, STAT3, Nrf2, ROS and COX-2. Numerous studies have indicated that curcumin is a highly potent antimicrobial agent and has been shown to be active against various chronic diseases including various types of cancers, diabetes, obesity, cardiovascular, pulmonary, neurological and autoimmune diseases. Furthermore, this compound has also been shown to be synergistic with other nutraceuticals such as resveratrol, piperine, catechins, quercetin and genistein. To date, over 100 different clinical trials have been completed with curcumin, which clearly show its safety, tolerability and its effectiveness against various chronic diseases in humans. However, more clinical trials in different populations are necessary to prove its potential against different chronic diseases in humans. This review's primary focus is on lessons learnt about curcumin from clinical trials. LINKED ARTICLES This article is part of a themed section on Principles of Pharmacological Research of Nutraceuticals. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v174.11/issuetoc.
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Affiliation(s)
| | - Devivasha Bordoloi
- Department of Biosciences and BioengineeringIndian Institute of Technology GuwahatiAssamIndia
| | - Ganesan Padmavathi
- Department of Biosciences and BioengineeringIndian Institute of Technology GuwahatiAssamIndia
| | - Javadi Monisha
- Department of Biosciences and BioengineeringIndian Institute of Technology GuwahatiAssamIndia
| | - Nand Kishor Roy
- Department of Biosciences and BioengineeringIndian Institute of Technology GuwahatiAssamIndia
| | - Sahdeo Prasad
- Department of Experimental TherapeuticsThe University of Texas MD Anderson Cancer CenterHoustonTexasUSA
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30
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Ren M, Wang Y, Wu X, Ge S, Wang B. Curcumin synergistically increases effects of β-interferon and retinoic acid on breast cancer cells in vitro and in vivo by up-regulation of GRIM-19 through STAT3-dependent and STAT3-independent pathways. J Drug Target 2016; 25:247-254. [PMID: 27677346 DOI: 10.1080/1061186x.2016.1242132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Min Ren
- Department of Breast Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, P.R. China
| | - Ying Wang
- Central Sterile Supply Department, Anhui Provincial Hospital of Anhui Medical University, Hefei, P.R. China
| | - Xiaodong Wu
- Department of Breast Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, P.R. China
| | - Suxia Ge
- Department of Breast Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, P.R. China
| | - Benzhong Wang
- Department of Breast Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, P.R. China
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