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Haque MF, El-Nashar HAS, Akbor MS, Alfaifi M, Bappi MH, Chowdhury AK, Hossain MK, El-Shazly M, Albayouk T, Saleh N, Islam MT. Anti-inflammatory activity of d-pinitol possibly through inhibiting COX-2 enzyme: in vivo and in silico studies. Front Chem 2024; 12:1366844. [PMID: 38690012 PMCID: PMC11058972 DOI: 10.3389/fchem.2024.1366844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 03/21/2024] [Indexed: 05/02/2024] Open
Abstract
Introduction: D-pinitol, a naturally occurring inositol, has diverse biological activities like antioxidant, antimicrobial and anticancer activities. This study aimed to evaluate anti-inflammatory effect of d-pinitol in a chick model. Additionally, in silico studies were performed to evaluate the molecular interactions with cyclooxygenase-2 (COX-2). Methods: The tested groups received d-pinitol (12.5, 25, and 50 mg/kg) and the standard drugs celecoxib and ketoprofen (42 mg/kg) via oral gavage prior to formalin injection. Then, the number of licks was counted for the first 10 min, and the paw edema diameter was measured at 60, 90, and 120 min. Results and Discussion: The d-pinitol groups significantly (p < 0.05) reduced the number of paw licks and paw edema diameters, compared to negative control. When d-pinitol was combined with celecoxib, it reduced inflammatory parameters more effectively than the individual groups. The in silico study showed a promising binding capacity of d-pinitol with COX-2. Taken together, d-pinitol exerted anti-inflammatory effects in a dose-dependent manner, possibly through COX-2 interaction pathway.
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Affiliation(s)
- Mst. Farjanamul Haque
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, Bangladesh
| | - Heba A. S. El-Nashar
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Md. Showkoth Akbor
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, Bangladesh
| | - Mohammed Alfaifi
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Mehedi Hasan Bappi
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, Bangladesh
| | | | - Muhammad Kamal Hossain
- School of Pharmacy, Jeonbuk National University, Jeonju, Republic of Korea
- Department of Pharmacy, University of Science and Technology Chittagiong, Chittagong, Bangladesh
| | - Mohamed El-Shazly
- Department of Pharmacognosy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Tala Albayouk
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Na’il Saleh
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Muhammad Torequl Islam
- Department of Pharmacy, Bangabandhu Sheikh Mujibur Rahman Science and Technology University, Gopalganj, Bangladesh
- Pharmacy Discipline, Khulna University, Khulna, Bangladesh
- BioLuster Research Center, Dhaka, Bangladesh
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2
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Pandi A, Sattu K, Kalappan VM, Lal V, Varikasuvu SR, Ganguly A, Prasad J. Pharmacological effects of D-Pinitol - A comprehensive review. J Food Biochem 2022; 46:e14282. [PMID: 35735162 DOI: 10.1111/jfbc.14282] [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: 03/16/2022] [Revised: 05/07/2022] [Accepted: 05/17/2022] [Indexed: 11/27/2022]
Abstract
In recent years, the application of phytochemicals to prevent or treat diseases has received greater attention. These phytochemicals have little or no toxicity against healthy tissues and are thus considered as ideal compounds. An impressive number of modern drugs are obtained from natural sources based on their traditional value. D-Pinitol is a natural compound that is derived from soy and soy products. It is a potentially active molecule that belongs to the class of inositols. D-pinitol has been pharmacologically evaluated for its potent antioxidant, anti-diabetic, anti-inflammatory, anti-cancer, hepatoprotective, cardioprotective, renoprotective, neuroprotective, immunosuppressive, and anti-osteoporotic efficacies. This review is an attempt to validate the plausible pharmacological effects of D-pinitol using various in vivo and in vitro studies. PRACTICAL IMPLICATIONS: The consumption of plant-based products has been significantly increased all over the world. The active phytochemicals that are found in plants are stated to have numerous health promoting functions for the treatment of diabetes, cancer, inflammation, cardiac diseases, liver dysfunction, and many other. D-Pinitol is abundantly present in soybeans that possess notable therapeutic activities. Understanding the effects of D-Pinitol would potentially help in applying this compound in clinical research for the treatment of different disorders.
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Affiliation(s)
- Anandakumar Pandi
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS)-Deoghar, Deoghar, Jharkhand, India
| | - Kamaraj Sattu
- Department of Biotechnology, Periyar University, PG Extension centre, Dharmapuri, Tamilnadu, India
| | - Vanitha M Kalappan
- Formerly, Department of Medical Biochemistry, University of Madras, Taramani campus, Chennai, Tamilnadu, India
| | - Vanita Lal
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS)-Deoghar, Deoghar, Jharkhand, India
| | - Seshadri R Varikasuvu
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS)-Deoghar, Deoghar, Jharkhand, India
| | - Anirban Ganguly
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS)-Deoghar, Deoghar, Jharkhand, India
| | - Jitender Prasad
- Department of Biochemistry, All India Institute of Medical Sciences (AIIMS)-Deoghar, Deoghar, Jharkhand, India
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3
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Medina-Vera D, Navarro JA, Rivera P, Rosell-Valle C, Gutiérrez-Adán A, Sanjuan C, López-Gambero AJ, Tovar R, Suárez J, Pavón FJ, Baixeras E, Decara J, Rodríguez de Fonseca F. d-Pinitol promotes tau dephosphorylation through a cyclin-dependent kinase 5 regulation mechanism: A new potential approach for tauopathies? Br J Pharmacol 2022; 179:4655-4672. [PMID: 35760415 PMCID: PMC9544772 DOI: 10.1111/bph.15907] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 03/28/2022] [Accepted: 04/21/2022] [Indexed: 12/30/2022] Open
Abstract
Background and Purpose Recent evidence links brain insulin resistance with neurodegenerative diseases, where hyperphosphorylated tau protein contributes to neuronal cell death. In the present study, we aimed to evaluate if d‐pinitol inositol, which acts as an insulin sensitizer, affects the phosphorylation status of tau protein. Experimental Approach We studied the pharmacological effect of d‐pinitol on insulin signalling and tau phosphorylation in the hippocampus of Wistar and Zucker rats. To this end, we evaluated by western blotting the Akt pathway and its downstream proteins as being one of the main insulin‐mediator pathways. Also, we explored the functional status of additional kinases phosphorylating tau, including PKA, ERK1/2, AMPK and CDK5. We utilized the 3xTg mouse model as a control for tauopathy, since it carries tau mutations that promote phosphorylation and aggregation. Key Results Surprisingly, we discovered that oral d‐pinitol treatment lowered tau phosphorylation significantly, but not through the expected kinase GSK‐3 regulation. An extensive search for additional kinases phosphorylating tau revealed that this effect was mediated through a mechanism dependent on the reduction of the activity of the CDK5, affecting both its p35 and p25 subunits. This effect disappeared in leptin‐deficient Zucker rats, uncovering that the association of leptin deficiency, obesity, dyslipidaemia and hyperinsulinaemia abrogates d‐pinitol actions on tau phosphorylation. The 3xTg mice confirmed d‐pinitol effectiveness in a genetic AD‐tauopathy. Conclusion and Implications The present findings suggest that d‐pinitol, by regulating CDK5 activity through a decrease of CDK5R1, is a potential drug for developing treatments for neurological disorders such as tauopathies.
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Affiliation(s)
- Dina Medina-Vera
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Regional de Málaga, UGC Salud Mental, Málaga, Spain.,Facultad de Ciencias, Universidad de Málaga, Málaga, Spain.,Facultad de Medicina, Universidad de Málaga, Málaga, Spain.,Instituto de Investigación Biomédica de Málaga-IBIMA and CIBER Enfermedades Cardiovasculares (CIBERCV), Hospital Universitario Virgen de la Victoria, UGC del Corazón, Málaga, Spain
| | - Juan Antonio Navarro
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Regional de Málaga, UGC Salud Mental, Málaga, Spain.,Facultad de Medicina, Universidad de Málaga, Málaga, Spain
| | - Patricia Rivera
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Regional de Málaga, UGC Salud Mental, Málaga, Spain
| | - Cristina Rosell-Valle
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Regional de Málaga, UGC Salud Mental, Málaga, Spain
| | - Alfonso Gutiérrez-Adán
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - Carlos Sanjuan
- Euronutra S.L., Parque Tecnológico de Andalucía, Málaga, Spain
| | - Antonio Jesús López-Gambero
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Regional de Málaga, UGC Salud Mental, Málaga, Spain.,Facultad de Ciencias, Universidad de Málaga, Málaga, Spain
| | - Rubén Tovar
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Regional de Málaga, UGC Salud Mental, Málaga, Spain.,Facultad de Medicina, Universidad de Málaga, Málaga, Spain
| | - Juan Suárez
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Regional de Málaga, UGC Salud Mental, Málaga, Spain.,Departamento de Anatomía Humana, Medicina Legal e Historia de la Ciencia, Universidad de Málaga, Málaga, Spain
| | - Francisco Javier Pavón
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Regional de Málaga, UGC Salud Mental, Málaga, Spain.,Instituto de Investigación Biomédica de Málaga-IBIMA and CIBER Enfermedades Cardiovasculares (CIBERCV), Hospital Universitario Virgen de la Victoria, UGC del Corazón, Málaga, Spain
| | - Elena Baixeras
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad de Málaga, Málaga, Spain
| | - Juan Decara
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Regional de Málaga, UGC Salud Mental, Málaga, Spain
| | - Fernando Rodríguez de Fonseca
- Instituto de Investigación Biomédica de Málaga-IBIMA, Hospital Universitario Regional de Málaga, UGC Salud Mental, Málaga, Spain
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4
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Azab A. D-Pinitol-Active Natural Product from Carob with Notable Insulin Regulation. Nutrients 2022; 14:nu14071453. [PMID: 35406064 PMCID: PMC9003036 DOI: 10.3390/nu14071453] [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] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 03/28/2022] [Accepted: 03/29/2022] [Indexed: 02/06/2023] Open
Abstract
Carob is one of the major food trees for peoples of the Mediterranean basin, but it has also been traditionally used for medicinal purposes. Carob contains many nutrients and active natural products, and D-Pinitol is clearly one of the most important of these. D-Pinitol has been reported in dozens of scientific publications and its very diverse medicinal properties are still being studied. Presently, more than thirty medicinal activities of D-Pinitol have been reported. Among these, many publications have reported the strong activities of D-Pinitol as a natural antidiabetic and insulin regulator, but also as an active anti-Alzheimer, anticancer, antioxidant, and anti-inflammatory, and is also immune- and hepato-protective. In this review, we will present a brief introduction of the nutritional and medicinal importance of Carob, both traditionally and as found by modern research. In the introduction, we will present Carob’s major active natural products. The structures of inositols will be presented with a brief literature summary of their medicinal activities, with special attention to those inositols in Carob, as well as D-Pinitol’s chemical structure and its medicinal and other properties. D-Pinitol antidiabetic and insulin regulation activities will be extensively presented, including its proposed mechanism of action. Finally, a discussion followed by the conclusions and future vision will summarize this article.
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5
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Tietel Z, Ananth DA, Sivasudha T, Klipcan L. Metabolomics of Cassia Auriculata Plant Parts (Leaf, Flower, Bud) and Their Antidiabetic Medicinal Potentials. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2021; 25:294-301. [PMID: 33904794 DOI: 10.1089/omi.2021.0010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Diabetes is a common chronic disease where therapeutics innovation is much needed. The search for novel antidiabetic molecules can be greatly facilitated by high throughput metabolomic characterization of herbal medicines. Cassia auriculata is a shrub used in Ayurvedic medicine and native to India and Sri Lanka. While C. auriculata has been used as a medicinal herb in diabetes, the molecular evidence for its antidiabetic medicinal potentials and components needs to be established. Moreover, the phytocomposition of the various plant parts is not fully known. We report a comprehensive metabolomic gas chromatography mass spectrometry study of the C. auriculata plant parts, including the leaf, flower, and bud. We identified a total of 102 primary and secondary metabolites in seven chemical groups, including amino acids (AA), carboxylic acids, nucleosides, fatty acids, among others. Interestingly, plant parts differed in their metabolomic signatures. While in the flowers and leaves nine and six AA were identified, respectively, no AA was detected in the buds. Some of the identified compounds have been previously noted for their antidiabetic, hypoglycemic, and hypolipidemic bioactivities. These findings offer a concrete metabolomic basis on the phytocomposition of individual C. auriculata plant parts. These omics data call for future research on the function of the identified compounds, and clinical studies to further evaluate their antidiabetic potentials and mechanisms of action in the clinic. Finally, we note that plant omics research offers an important avenue to inform, verify, and strengthen the evidentiary base and clinical testing of herbs with medicinal potentials.
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Affiliation(s)
- Zipora Tietel
- Department of Food Science, Gilat Research Center, Agricultural Research Organization M.P. Negev, Israel
| | - Devanesan Arul Ananth
- Department of Food Science, Gilat Research Center, Agricultural Research Organization M.P. Negev, Israel
| | - Thilagar Sivasudha
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
| | - Liron Klipcan
- Department of Food Science, Gilat Research Center, Agricultural Research Organization M.P. Negev, Israel
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6
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Navarro JA, Decara J, Medina-Vera D, Tovar R, Suarez J, Pavón J, Serrano A, Vida M, Gutierrez-Adan A, Sanjuan C, Baixeras E, de Fonseca FR. D-Pinitol from Ceratonia siliqua Is an Orally Active Natural Inositol That Reduces Pancreas Insulin Secretion and Increases Circulating Ghrelin Levels in Wistar Rats. Nutrients 2020; 12:nu12072030. [PMID: 32650579 PMCID: PMC7400942 DOI: 10.3390/nu12072030] [Citation(s) in RCA: 16] [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: 05/31/2020] [Revised: 07/03/2020] [Accepted: 07/06/2020] [Indexed: 12/18/2022] Open
Abstract
To characterize the metabolic actions of D-Pinitol, a dietary inositol, in male Wistar rats, we analyzed its oral pharmacokinetics and its effects on (a) the secretion of hormones regulating metabolism (insulin, glucagon, IGF-1, ghrelin, leptin and adiponectin), (b) insulin signaling in the liver and (c) the expression of glycolytic and neoglucogenesis enzymes. Oral D-Pinitol administration (100 or 500 mg/Kg) resulted in its rapid absorption and distribution to plasma and liver compartments. Its administration reduced insulinemia and HOMA-IR, while maintaining glycaemia thanks to increased glucagon activity. In the liver, D-Pinitol reduced the key glycolytic enzyme pyruvate kinase and decreased the phosphorylation of the enzymes AKT and GSK-3. These observations were associated with an increase in ghrelin concentrations, a known inhibitor of insulin secretion. The profile of D-Pinitol suggests its potential use as a pancreatic protector decreasing insulin secretion through ghrelin upregulation, while sustaining glycaemia through the liver-based mechanisms of glycolysis control.
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Affiliation(s)
- Juan A. Navarro
- Laboratorio de Medicina Regenerativa, Instituto IBIMA de Málaga, Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (J.S.); (J.P.); (A.S.); (M.V.)
- Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain
| | - Juan Decara
- Laboratorio de Medicina Regenerativa, Instituto IBIMA de Málaga, Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (J.S.); (J.P.); (A.S.); (M.V.)
| | - Dina Medina-Vera
- Laboratorio de Medicina Regenerativa, Instituto IBIMA de Málaga, Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (J.S.); (J.P.); (A.S.); (M.V.)
- Facultad de Ciencias, Universidad de Málaga, 29010 Málaga, Spain
| | - Rubén Tovar
- Laboratorio de Medicina Regenerativa, Instituto IBIMA de Málaga, Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (J.S.); (J.P.); (A.S.); (M.V.)
- Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain
| | - Juan Suarez
- Laboratorio de Medicina Regenerativa, Instituto IBIMA de Málaga, Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (J.S.); (J.P.); (A.S.); (M.V.)
| | - Javier Pavón
- Laboratorio de Medicina Regenerativa, Instituto IBIMA de Málaga, Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (J.S.); (J.P.); (A.S.); (M.V.)
| | - Antonia Serrano
- Laboratorio de Medicina Regenerativa, Instituto IBIMA de Málaga, Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (J.S.); (J.P.); (A.S.); (M.V.)
| | - Margarita Vida
- Laboratorio de Medicina Regenerativa, Instituto IBIMA de Málaga, Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (J.S.); (J.P.); (A.S.); (M.V.)
| | - Alfonso Gutierrez-Adan
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, 28040 Madrid, Spain;
| | - Carlos Sanjuan
- Euronutra S.L. Calle Johannes Kepler, 3, 29590 Málaga, Spain
- Correspondence: (C.S.); (E.B.); (F.R.d.F.); Tel.: +34-655-373-093 (E.B.); +34-669-426-548 (F.R.d.F.)
| | - Elena Baixeras
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain
- Correspondence: (C.S.); (E.B.); (F.R.d.F.); Tel.: +34-655-373-093 (E.B.); +34-669-426-548 (F.R.d.F.)
| | - Fernando Rodríguez de Fonseca
- Laboratorio de Medicina Regenerativa, Instituto IBIMA de Málaga, Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, 29010 Málaga, Spain; (J.A.N.); (J.D.); (D.M.-V.); (R.T.); (J.S.); (J.P.); (A.S.); (M.V.)
- Correspondence: (C.S.); (E.B.); (F.R.d.F.); Tel.: +34-655-373-093 (E.B.); +34-669-426-548 (F.R.d.F.)
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Shakeel-u-Rehman, Bhat KA, Lone SH, Malik FA. Click chemistry inspired facile synthesis and bioevaluation of novel triazolyl analogs of D-(+)-pinitol. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2015.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
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Pinitol alleviates systemic inflammatory cytokines in human obesity by a mechanism involving unfolded protein response and sirtuin 1. Clin Nutr 2018; 37:2036-2044. [DOI: 10.1016/j.clnu.2017.09.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/28/2017] [Accepted: 09/11/2017] [Indexed: 01/08/2023]
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9
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Nwaehujor CO, Udegbunam RI, Asuzu IU. Analgesic, anti-inflammatory and anti-pyretic activities of D-3-O-methylchiroinositol isolated from stem bark of Piliostigma thonningii. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1459-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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10
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Park MK, Cho SA, Lee HJ, Lee EJ, Kang JH, Kim YL, Kim HJ, Oh SH, Choi C, Lee H, Kim SY. Suppression of Transglutaminase-2 is Involved in Anti-Inflammatory Actions of Glucosamine in 12-O-Tetradecanoylphorbol-13-Acetate-Induced Skin Inflammation. Biomol Ther (Seoul) 2013; 20:380-5. [PMID: 24009824 PMCID: PMC3762271 DOI: 10.4062/biomolther.2012.20.4.380] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2012] [Revised: 07/06/2012] [Accepted: 07/10/2012] [Indexed: 01/21/2023] Open
Abstract
Glucosamine (GS) is well known for the treatment of inflam-mation. However, the mechanism and efficacy of GS for skin inflammation are unclear. The aim of this study was to evaluate the effects and mechanism of GS in the mouse 12-O-tetradecanoyl 13-acetate (TPA)-induced ear edema model. TPA-induced ear edema was evoked in ICR or transglutaminase 2 (Tgase-2) (-/-) mice. GS was administered orally (10-100 mg/kg) or topically (0.5-2.0 w/v %) prior to TPA treatment. Orally administered GS at 10 mg/kg showed a 76 or 57% reduction in ear weight or myeloperoxidase, respectively, and a decreased expression of cyclooxy-genase-2 (COX-2), NF-κB and Tgase-2 in TPA-induced ear edema by western blot and immunohistochemistry. Role of Tgase-2 in TPA ear edema is examined using Tgase-2 (-/-) mice and TPA did not induce COX-2 expression in ear of Tgase-2 (-/-) mice. These observations suggested that Tgase-2 is involved in TPA-induced COX-2 expression in the inflamed ear of mice and anti-inflammatory effects of glucosamine is mediated through suppression of Tgase-2 in TPA ear edema.
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Affiliation(s)
- Mi Kyung Park
- College of Pharmacy, Dongguk University, Goyang 410-820, Republic of Korea
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Farias VX, Macêdo FHP, Oquendo MB, Tomé AR, Báo SN, Cintra DOS, Santos CF, Albuquerque AAC, Heimark DB, Larner J, Fonteles MC, Leal-Cardoso JH, Nascimento NRF. Chronic treatment with D-chiro-inositol prevents autonomic and somatic neuropathy in STZ-induced diabetic mice. Diabetes Obes Metab 2011; 13:243-50. [PMID: 21205116 DOI: 10.1111/j.1463-1326.2010.01344.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM D-chiro-inositol (DCI) has been shown to prevent and reverse endothelial dysfunction in diabetic rats and rabbits. The present study evaluates the preventive effect of DCI on experimental diabetic neuropathy (DN). METHODS Streptozotocin-induced (STZ) diabetic mice were treated by oral gavage for 60 days with DCI (20 mg/kg/12 h) or saline (NaCl 0.9%; 0.1 ml/10 g/12 h; Diab) and compared with euglycaemic groups treated with saline (0.1 ml/10 g/12 h; Eugly). We compared the response of the isolated sciatic nerve, corpora cavernosa or vas deferens to electrical stimulation. RESULTS The electrically evoked compound action potential of the sciatic nerve was greatly blunted by diabetes. The peak-to-peak amplitude (PPA) was decreased from 3.24 ± 0.7 to 0.9 ± 0.2 mV (p < 0.05), the conduction velocity (CV) of the first component was reduced from 46.78 ± 4.5 to 26.69 ± 3.8 ms (p < 0.05) and chronaxy was increased from 60.43 ± 1.9 to 69.67 ± 1.4 ms (p < 0.05). These parameters were improved in nerves from DCI-treated mice (p < 0.05). PPA in the DCI group was 5.79 ± 0.8 mV (vs. 0.9 ± 0.2 mV-Diab; p < 0.05) and CV was 45.91 ± 3.6 ms (vs. 26.69 ± 3.8 ms-Diab; p < 0.05). Maximal relaxation of the corpus cavernosum evoked by electrical stimulation (2-64 Hz) in the Diab group was 36.4 ± 3.8% compared to 65.4 ± 2.8% in Eugly and 59.3 ± 5.5% in the DCI group (p < 0.05). Maximal contraction obtained in the vas deferens was 38.0 ± 9.2% in Eugly and 11.5 ± 2.6% in Diab (decrease of 69.7%; p < 0.05), compared to 25.2 ± 2.3% in the DCI group (p < 0.05 vs. diabetic). Electron microscopy of the sciatic nerves showed prevention of neuronal damage. CONCLUSIONS DCI has a neuroprotective action in both autonomic and somatic nerves in STZ-induced DN.
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Affiliation(s)
- V X Farias
- Department of Physiology and Pharmacology, Superior Institute of Biomedical Sciences, Fortaleza, Ceará, Brazil
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Kim SH, Lim JH, Moon C, Park SH, Kim SH, Shin DH, Park SC, Kim JC. Antiinflammatory and Antioxidant Effects of Aqueous Extract from Phellinus gilvus in Rats. ACTA ACUST UNITED AC 2011. [DOI: 10.1248/jhs.57.171] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Sung-Hwan Kim
- College of Veterinary Medicine, Chonnam National University
| | | | - Changjong Moon
- College of Veterinary Medicine, Chonnam National University
| | - Soo-Hyun Park
- College of Veterinary Medicine, Chonnam National University
| | - Sung-Ho Kim
- College of Veterinary Medicine, Chonnam National University
| | - Dong-Ho Shin
- College of Veterinary Medicine, Chonnam National University
| | - Seung-Chun Park
- College of Veterinary Medicine, Kyungpook National University
| | - Jong-Choon Kim
- College of Veterinary Medicine, Chonnam National University
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Sakai S, Sugawara T, Kishi T, Yanagimoto K, Hirata T. Effect of glucosamine and related compounds on the degranulation of mast cells and ear swelling induced by dinitrofluorobenzene in mice. Life Sci 2010; 86:337-43. [DOI: 10.1016/j.lfs.2010.01.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2009] [Revised: 11/30/2009] [Accepted: 01/10/2010] [Indexed: 11/15/2022]
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Colado JC, García-Massó X. Technique and safety aspects of resistance exercises: a systematic review of the literature. PHYSICIAN SPORTSMED 2009; 37:104-11. [PMID: 20048516 DOI: 10.3810/psm.2009.06.1716] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A systematic review of the scientific literature was conducted to identify the optimal ranges of motion for preventing injury in the main joints of the body during resistance exercise performance. These ranges of motion are independent of the type in which the resistance exercises could be applied (ie, adults, elderly, athletes, recreational exercisers), and the regions examined include the shoulder, spine, and knee, which are injured most often. It can be concluded that during the performance of any resistance exercise, it is possible to put anatomical structures at risk with certain body positions; therefore, it is necessary to understand these movements so injury can be avoided.
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Affiliation(s)
- Juan C Colado
- Department of Physical Education and Sports, University of Valencia, Valencia, 46010, Spain.
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Semi-synthetic analogs of pinitol as potential inhibitors of TNF-α cytokine expression in human neutrophils. Bioorg Med Chem Lett 2009; 19:1939-43. [DOI: 10.1016/j.bmcl.2009.02.050] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2008] [Revised: 01/22/2009] [Accepted: 02/12/2009] [Indexed: 11/19/2022]
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Sethi G, Ahn KS, Sung B, Aggarwal BB. Pinitol targets nuclear factor-kappaB activation pathway leading to inhibition of gene products associated with proliferation, apoptosis, invasion, and angiogenesis. Mol Cancer Ther 2008; 7:1604-14. [PMID: 18566231 DOI: 10.1158/1535-7163.mct-07-2424] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Pinitol (3-O-methyl-chiroinositol), a component of traditional Ayurvedic medicine (talisapatra), has been shown to exhibit anti-inflammatory and antidiabetic activities through undefined mechanisms. Because the transcription factor nuclear factor-kappaB (NF-kappaB) has been linked with inflammatory diseases, including insulin resistance, we hypothesized that pinitol must mediate its effects through modulation of NF-kappaB activation pathway. We found that pinitol suppressed NF-kappaB activation induced by inflammatory stimuli and carcinogens. This suppression was not specific to cell type. Besides inducible, pinitol also abrogated constitutive NF-kappaB activation noted in most tumor cells. The suppression of NF-kappaB activation by pinitol occurred through inhibition of the activation of IkappaBalpha kinase, leading to sequential suppression of IkappaBalpha phosphorylation, IkappaBalpha degradation, p65 phosphorylation, p65 nuclear translocation, and NF-kappaB-dependent reporter gene expression. Pinitol also suppressed the NF-kappaB reporter activity induced by tumor necrosis factor receptor (TNFR)-1, TNFR-associated death domain, TNFR-associated factor-2, transforming growth factor-beta-activated kinase-1 (TAK-1)/TAK1-binding protein-1, and IkappaBalpha kinase but not that induced by p65. The inhibition of NF-kappaB activation thereby led to down-regulation of gene products involved in inflammation (cyclooxygenase-2), proliferation (cyclin D1 and c-myc), invasion (matrix metalloproteinase-9), angiogenesis (vascular endothelial growth factor), and cell survival (cIAP1, cIAP2, X-linked inhibitor apoptosis protein, Bcl-2, and Bcl-xL). Suppression of these gene products by pinitol enhanced the apoptosis induced by TNF and chemotherapeutic agents and suppressed TNF-induced cellular invasion. Our results show that pinitol inhibits the NF-kappaB activation pathway, which may explain its ability to suppress inflammatory cellular responses.
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Affiliation(s)
- Gautam Sethi
- Cytokine Research Laboratory, Department of Experimental Therapeutics, The University of Texas M. D. Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
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