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Hassan SS, Alqahtani MS. Comparative Study of Cytokeratin Immunostaining of Parotid Gland Parenchyma in Normal, Diabetic, and Excretory Duct Ligation of Mongrel Dogs. Eur J Dent 2023; 17:678-686. [PMID: 35728611 PMCID: PMC10569872 DOI: 10.1055/s-0042-1744372] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVES The present study aimed to give a glimpse of the normal distribution of intermediate filaments within the parotid gland parenchyma of mongrel dogs and to reveal the pathological changes that may occur as a result of the effects of diabetes mellitus or atrophy of the gland caused by the ligation of the excretory duct to discover whether there is a similarity in these pathological behaviors. MATERIALS AND METHODS Twelve healthy mongrel dogs were used in the experiment and were divided into three groups: group I (the control group), group II (dogs with alloxan-induced diabetes), and group III (dogs with the right-side duct-ligated parotid gland). The dogs were sacrificed 45 days after the parotid excretory duct were tied. The right parotid gland of all groups was dissected and prepared for histological and immunohistochemical expression of cytokeratin 17 assay. RESULTS Histological findings confirmed that the parotid gland parenchyma of the diabetic group had glandular atrophy characterized by the loss of gland structure, degenerated acini, and dilatation of the duct system. Moreover, there is a predominance of the fibrous component with the presence of fat cells within the gland compartments. On the contrary, the excretory duct-ligated group undergoes severe glandular atrophy of the previous character with the presence of duct-like structure as well as extravasation and vasodilatation. Immunohistochemical expression of cytokeratin 17 in control parotid using an immunoperoxidase technique showed that cytokeratin expression varies from negative to mild in all ducts and some serous acinar cells. The gland parenchyma of the diabetic group showed mild to strong cytokeratin expression of duct cells more concentrated in the apical part with moderate to strong expression of diffuse type in some serous acini. The intensity of cytokeratin 17 in gland compartments of the excretory duct-ligated group revealed a variation in expression that ranged from negative to strong diffuse staining throughout the gland. CONCLUSION The severity and prevalence of cytokeratin 17 in our results are predictive of the pathological influence of both diabetes mellitus and duct ligation on the cytokeratin intracellular filaments of the salivary gland parenchyma in a different way that interferes with saliva production and/or secretion leading to xerostomia.
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Affiliation(s)
- Sherif Sayed Hassan
- Oral Biology Division, Department of Basic and Clinical Oral Sciences, Faculty of Dentistry, Umm Al-Qura University, Makkah, The Kingdom of Saudi Arabia
- Department of Oral Biology and Dental Anatomy, Faculty of Dentistry, Al-Azhar University, Assiut, Egypt
| | - Mashael Saeed Alqahtani
- Oral Pathology Division, Department of Basic and Clinical Oral Sciences, Faculty of Dentistry, Umm Al-Qura University, Makkah, The Kingdom of Saudi Arabia
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Faustino-Barros JF, Saranzo Sant'Ana AM, Dias LC, de Andrade Batista Murashima A, Costa Mendes da Silva LE, Fantucci MZ, Garcia DM, Rocha EM. Distinct Inflammatory and Oxidative Effects of Diabetes Mellitus and Hypothyroidism in the Lacrimal Functional Unit. Int J Mol Sci 2023; 24:ijms24086974. [PMID: 37108138 PMCID: PMC10138510 DOI: 10.3390/ijms24086974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/28/2023] [Accepted: 03/04/2023] [Indexed: 04/29/2023] Open
Abstract
Diabetes mellitus (DM) and hypothyroidism (HT) are prevalent diseases associated with dry eye (DE). Their impact on the lacrimal functional unit (LFU) is poorly known. This work evaluates the changes in the LFU in DM and HT. Adult male Wistar rats had the disease induced as follows: (a) DM: streptozotocin and (b) HT: methimazole. The tear film (TF) and blood osmolarity were measured. Cytokine mRNA was compared in the lacrimal gland (LG), trigeminal ganglion (TG), and cornea (CO). Oxidative enzymes were evaluated in the LG. The DM group showed lower tear secretion (p = 0.02) and higher blood osmolarity (p < 0.001). The DM group presented lower mRNA expression of TRPV1 in the cornea (p = 0.03), higher Il1b mRNA expression (p = 0.03), and higher catalase activity in the LG (p < 0.001). The DM group presented higher Il6 mRNA expression in the TG (p = 0.02). The HT group showed higher TF osmolarity (p < 0.001), lower expression of Mmp9 mRNA in the CO (p < 0.001), higher catalase activity in the LG (p = 0.002), and higher expression of Il1b mRNA in the TG (p = 0.004). The findings revealed that DM and HT induce distinct compromises to the LG and the entire LFU.
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Affiliation(s)
- Jacqueline Ferreira Faustino-Barros
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
| | - Ariane Mirela Saranzo Sant'Ana
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
| | - Lara Cristina Dias
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
| | - Adriana de Andrade Batista Murashima
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
| | - Lilian Eslaine Costa Mendes da Silva
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
| | - Marina Zílio Fantucci
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
| | - Denny Marcos Garcia
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
| | - Eduardo Melani Rocha
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirão Preto Medical School, University of São Paulo, Ribeirao Preto 14049-900, Brazil
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Gomes MA, Manzano C, Alves TM, Fiais GA, Freitas RN, Coutinho Mattera MSDL, Dornelles RCM, Matsushita DH, Stevanato Nakamune ACDM, Chaves-Neto AH. Assessment of redox state and biochemical parameters of salivary glands in streptozotocin-induced diabetic male rats treated with mate tea (Ilex paraguariensis). Arch Oral Biol 2022; 143:105551. [PMID: 36167015 DOI: 10.1016/j.archoralbio.2022.105551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/14/2022] [Accepted: 09/19/2022] [Indexed: 11/02/2022]
Abstract
OBJECTIVE The study aimed to assess the effects of mate tea [Ilex paraguariensis] on the redox state and biochemical parameters of salivary glands in diabetic male rats. DESIGN Twenty-four male Wistar rats (3 months old) were randomly divided into groups (n = 8 per group): control rats that received water (C); diabetic rats that received water (D); diabetic rats treated with mate tea (DMT). The treated streptozotocin-induced diabetic rats were given mate tea powder by intragastric gavage at a dose of 20 mg/kg daily for 28 days. Content of total protein, amylase, oxidative lipid damage, measured as thiobarbituric acid reactive substances (TBARs), oxidative protein damage, measured as protein carbonyl, total antioxidant capacity, uric acid, reduced glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx) were examined by the spectrophotometric method in the parotid and submandibular glands. RESULTS The D group showed lower total protein, amylase, TBARs, protein carbonyl, total antioxidant capacity, GSH, uric acid, and GPx than the C group in both salivary glands, as well as higher SOD and CAT activities. The DMT group showed higher total protein, amylase, total antioxidant capacity, GSH, uric acid, and GPx than the D group in both salivary glands. Moreover, mate tea increased SOD in the parotid gland and CAT in the submandibular gland of diabetic rats but did not influence TBARs and protein carbonyl in either salivary gland compared to D group. CONCLUSION Mate tea increased tissue protein synthesis and improved antioxidant defenses in the salivary glands of streptozotocin-induced diabetic male rats.
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Affiliation(s)
- Marco Aurélio Gomes
- Departamento de Ciências Básicas, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil
| | - Carolina Manzano
- Departamento de Ciências Básicas, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil
| | - Thayane Miranda Alves
- Departamento de Ciências Básicas, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil
| | - Gabriela Alice Fiais
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil
| | - Rayara Nogueira Freitas
- Programa de Pós-Graduação em Ciência Odontológica- Saúde Bucal da Criança, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil
| | - Maria Sara de Lima Coutinho Mattera
- Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil
| | - Rita Cássia Menegati Dornelles
- Departamento de Ciências Básicas, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil
| | - Doris Hissako Matsushita
- Departamento de Ciências Básicas, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil
| | - Ana Cláudia de Melo Stevanato Nakamune
- Departamento de Ciências Básicas, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil
| | - Antonio Hernandes Chaves-Neto
- Departamento de Ciências Básicas, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil; Programa de Pós-Graduação Multicêntrico em Ciências Fisiológicas - SBFis, Universidade Estadual Paulista (Unesp), Faculdade de Odontologia, Araçatuba, São Paulo, Brazil.
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4
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Oliveira ESC, Acho LDR, da Silva BJP, Morales-Gamba RD, Pontes FLD, do Rosário AS, Bezerra JDA, Campos FR, Barcellos JFM, Lima ES, Machado MB. Hypoglycemic effect and toxicity of the dry extract of Eugenia biflora (L.) DC. leaves. JOURNAL OF ETHNOPHARMACOLOGY 2022; 293:115276. [PMID: 35421528 DOI: 10.1016/j.jep.2022.115276] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/25/2022] [Accepted: 04/05/2022] [Indexed: 06/14/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The leaves of Eugenia biflora (Myrtaceae) are traditionally used by Amazonian populations for the control of diabetes. However, their chemical composition has not yet been described and pharmacological evidence has not been reported. OBJECTIVE This study aimed to identify the chemical constituents and evaluate the hypoglycemic and toxic effect of the dry extract of the E. biflora leaves (DEEB). MATERIALS AND METHODS DEEB, obtained by infusion, was analyzed using LC-HRMS and NMR, whose the catechin flavonoid was quantified using NMR. The antidiabetic effect of DEEB was evaluated according to its inhibition of the enzymes α-amylase and α-glucosidase, as well as the content of total phenols, free radical scavengingand antiglycation activities, and its in vitro cell viability. Oral maltose tolerance and chronic multiple dose tests (28 days) in streptozotocin-induced diabetic mice (STZ) were performed. The hypoglycemic effect and toxicity of this extract were evaluated in the multiple dose assay. Biochemical parameters, hemolysis, and levels of the thiobarbituric acid reactive species in the liver were investigated and histopathological analyses of the kidneys and liver were performed. RESULTS Eight phenolic compounds were identified, with catechin (15.5 ± 1.7 mg g-1) being the majority compound and a possible chemical marker of DEEB. The extract showed inhibition activity of the enzyme α-glucosidase. Chronic administration of DEEB (50 mg/kg of body weight) reduced glucose levels in diabetic animals, similar to acarbose; however, DEEB (100 and 200 mg/kg bw) caused premature death of mice by D22 of the treatment. Our data indicate that one of the mechanisms of toxicity in DEEB may be related to the aggravation of oxidative stress in the liver. This histopathological study indicated that DEEB failed to minimize the progression of the toxicity of diabetes caused by STZ. CONCLUSIONS This study demonstrated the hypoglycemic potential of E. biflora leaves. However, the prolonged use of this tea can be harmful to its users due to its considerable toxicity, which needs to be better investigated.
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Affiliation(s)
- Edinilze S C Oliveira
- Núcleo de Estudos Químicos de Micromoléculas da Amazônia - NEQUIMA, Instituto de Ciências Exatas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Leonard D R Acho
- Laboratório de Atividade Biológica, Faculdade de Ciências Farmacêuticas, Universidade Federal do Amazonas Manaus, Amazonas, Brazil
| | - Bárbara Janaína P da Silva
- Laboratório de Atividade Biológica, Faculdade de Ciências Farmacêuticas, Universidade Federal do Amazonas Manaus, Amazonas, Brazil
| | - Ruben Dario Morales-Gamba
- Programa de Pós-graduação em Zoologia, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Flávia L D Pontes
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Alessandro S do Rosário
- Engenharia Florestal, Campus Paragominas, Universidade Federal Rural da Amazônia, Paragominas, Pará, Brazil
| | - Jaqueline de A Bezerra
- Núcleo de Estudos Químicos de Micromoléculas da Amazônia - NEQUIMA, Instituto de Ciências Exatas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil; Departamento de Química, Ambiente e Alimentos, Instituto Federal de Educação, Ciência e Tecnologia do Amazonas, Manaus, Amazonas, Brazil
| | - Francinete R Campos
- Núcleo de Estudos Químicos de Micromoléculas da Amazônia - NEQUIMA, Instituto de Ciências Exatas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil; Departamento de Farmácia, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - José Fernando M Barcellos
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Emerson S Lima
- Laboratório de Atividade Biológica, Faculdade de Ciências Farmacêuticas, Universidade Federal do Amazonas Manaus, Amazonas, Brazil
| | - Marcos B Machado
- Núcleo de Estudos Químicos de Micromoléculas da Amazônia - NEQUIMA, Instituto de Ciências Exatas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.
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Oboh G, Ogunbadejo MD, Ogunsuyi OB, Oyeleye SI. Can gallic acid potentiate the antihyperglycemic effect of acarbose and metformin? Evidence from streptozotocin-induced diabetic rat model. Arch Physiol Biochem 2022; 128:619-627. [PMID: 31979987 DOI: 10.1080/13813455.2020.1716014] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This study investigated the influence of dietary phenolic acid- Gallic acid (GA) on the antihyperglycemic properties of acarbose (ACA) and metformin (MET). Streptozotocin-induced diabetic rats were treated (p.o) with ACA, MET, GA and their combinations for 14 days. The effects of the treatments on blood glucose and insulin levels, pancreas α-amylase and intestinal α-glucosidase activities, as well as thiobarbituric acid reactive species (TBARS), thiol and reactive oxygen species (ROS) levels, including antioxidant enzyme activities were investigated. A significant increase in blood glucose, insulin, ROS and TBARS levels, and impaired antioxidant status, as well as elevation in the activities of α-amylase and α-glucosidase observed in diabetic rats were ameliorated in the treatment groups. Hpwever, GA had varying effects on the antidiabetic properties of the drugs. Nevertheless, GA showed more potentiating effects on the antidiabetic effect of MET and these effects were better observed at the lower dose of GA.
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Affiliation(s)
- Ganiyu Oboh
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Mariam Damilola Ogunbadejo
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
| | - Opeyemi Babatunde Ogunsuyi
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
- Biomedical Technology Department, Federal University of Technology, Akure, Nigeria
| | - Sunday Idowu Oyeleye
- Functional Foods and Nutraceuticals Unit, Department of Biochemistry, Federal University of Technology, Akure, Nigeria
- Biomedical Technology Department, Federal University of Technology, Akure, Nigeria
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Dos Santos DR, Fiais GA, Oliveira HA, Ribas TB, Souza RO, Tsosura TVS, Matsushita DH, Ervolino E, Dornelles RCM, Nakamune ACDMS, Chaves-Neto AH. Assessment of redox state and biochemical parameters of salivary glands in rats treated with anti-obesity drug sibutramine hydrochloride. Clin Oral Investig 2022; 26:5833-5846. [PMID: 35556176 DOI: 10.1007/s00784-022-04539-1] [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: 08/31/2021] [Accepted: 05/04/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVES To investigate the effects of anti-obesity drug sibutramine hydrochloride (SB) on redox state and biochemical parameters in the salivary glands. MATERIALS AND METHODS Adult male Wistar rats were randomly divided into the following groups (n = 8 per group): control rats treated with vehicle (C) and rats treated with SB (10 mg/kg/day) by intragastric gavage for 28 days. The parotid (PG) and submandibular (SMG) glands were processed using histomorphometric analysis, and total protein, amylase, mucin, and oxidative damage to lipids were determined by measuring the formation of thiobarbituric acid reactive substances (TBARS), total antioxidant capacity (TAC), uric acid (UA), total glutathione (tGSH), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx), and AKT phosphorylation. RESULTS SB decreased the acinar area, and increased the stromal area in PG, while no effect on the morphometric parameters was observed in SMG. SB also increased oxidative damage to lipids (TBARs). The SB group showed lower total protein, amylase, TAC, UA, tGSH, SOD, CAT, and GPx than the C group in PG, while in SMG, SB decreased total protein, mucin, tGSH, SOD, CAT, and GPx. However, increased AKT phosphorylation observed in both salivary glands suggests that SB exerts low-intensity oxidative stress. CONCLUSIONS SB impaired enzymatic and non-enzymatic antioxidant defenses in the salivary glands of rats. CLINICAL RELEVANCE Chronic treatment with SB could mitigate salivary gland dysfunction due to disturbance of redox state.
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Affiliation(s)
- Damáris Raissa Dos Santos
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil.,Programa de Pós-Graduação Multicêntrico Em Ciências Fisiológicas-SBFIs, Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Aracatuba, São Paulo, Brazil
| | - Gabriela Alice Fiais
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil.,Programa de Pós-Graduação Multicêntrico Em Ciências Fisiológicas-SBFIs, Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Aracatuba, São Paulo, Brazil
| | - Henrique Arnaldo Oliveira
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil
| | - Tayná Buffulin Ribas
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil
| | - Rayne Oliveira Souza
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil
| | - Thaís Verônica Saori Tsosura
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil.,Programa de Pós-Graduação Multicêntrico Em Ciências Fisiológicas-SBFIs, Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Aracatuba, São Paulo, Brazil
| | - Doris Hissako Matsushita
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil.,Programa de Pós-Graduação Multicêntrico Em Ciências Fisiológicas-SBFIs, Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Aracatuba, São Paulo, Brazil
| | - Edilson Ervolino
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil
| | - Rita Cássia Menegati Dornelles
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil.,Programa de Pós-Graduação Multicêntrico Em Ciências Fisiológicas-SBFIs, Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Aracatuba, São Paulo, Brazil
| | - Ana Cláudia de Melo Stevanato Nakamune
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil.,Programa de Pós-Graduação Multicêntrico Em Ciências Fisiológicas-SBFIs, Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Aracatuba, São Paulo, Brazil
| | - Antonio Hernandes Chaves-Neto
- Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Rodovia Marechal Rondon, km 527/528, Aracatuba, São Paulo, CEP 16018-805, Brazil. .,Programa de Pós-Graduação Multicêntrico Em Ciências Fisiológicas-SBFIs, Department of Basic Sciences, School of Dentistry of Araçatuba- UNESP - Universidade Estadual Paulista, Aracatuba, São Paulo, Brazil.
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7
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Perestrelo BO, Carvalho PMD, Souza DN, Carneiro MJ, Cirino JPG, Carvalho PO, Sawaya ACHF, Oyama LM, Nogueira FN. Antioxidant effect of chamomile tea on the salivary glands of streptozotocin-induced diabetic rats. Braz Oral Res 2022; 36:e034. [PMID: 35293499 DOI: 10.1590/1807-3107bor-2022.vol36.0034] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 11/03/2021] [Indexed: 01/13/2023] Open
Abstract
This study aimed to analyze oxidative stress and the activity of antioxidant enzymes in the salivary glands of streptozotocin (STZ)-induced diabetic rats with ad libitum consumption of chamomile tea in substitution of water for 21 days. Rats were divided in two control groups (untreated control and treated control) and two diabetic groups (untreated diabetic and treated diabetic). Superoxide dismutase (SOD), glutathione peroxidase (GPx), catalase (CAT) activities, total antioxidant status (TAS), and malondialdehyde (MDA) concentrations were determined. The chemical composition of the chamomile essential oil revealed 39 compounds, accounting for 93.5% of the total oils. The polyphenolic profile of the tea showed the presence of apigenin, luteolin, umbelliferone, and esculetin. SOD, GPx, CAT, and TAS levels were lower in the parotid (PA) diabetic glands, but treatment increased their concentration in both the submandibular (SM) and PA diabetic salivary glands. Increased MDA levels were observed in the PA diabetic glands, which were decreased by the consumption of chamomile tea with a reduction in hyperglycemia compared to that in untreated diabetic rats. However, the SM diabetic glands showed no difference in the MDA content. The consumption of chamomile tea prevented oxidative stress in the PA glands of diabetic rats, exhibiting hypoglycemic and antioxidant effects. Thus, chamomile tea could be a potential candidate for preventing oral complications in diabetes mellitus.
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Affiliation(s)
- Bruna Oliveira Perestrelo
- Universidade de São Paulo - USP, School of Dentistry, Department of Biomaterials and Oral Biology, São Paulo, SP, Brazil
| | - Polliane Morais de Carvalho
- Universidade de São Paulo - USP, School of Dentistry, Department of Biomaterials and Oral Biology, São Paulo, SP, Brazil
| | - Douglas Nesadal Souza
- Universidade de São Paulo - USP, School of Dentistry, Department of Biomaterials and Oral Biology, São Paulo, SP, Brazil
| | - Mara Junqueira Carneiro
- Universidade Estadual de Campinas - Unicamp, Institute of Biology, Department of Plant Biology, Campinas, SP, Brazil
| | | | - Patricia Oliveira Carvalho
- Universidade São Francisco - USF, Laboratory of Multidisciplinary Research, Bragança Paulista, SP, Brazil
| | | | - Lila Missae Oyama
- Universidadde Federal de São Paulo - Unifesp, Paulista Medical School, Department of Physiology, São Paulo, SP, Brazil
| | - Fernando Neves Nogueira
- Universidade de São Paulo - USP, School of Dentistry, Department of Biomaterials and Oral Biology, São Paulo, SP, Brazil
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8
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Lemos CN, da Silva LECM, Faustino JF, Fantucci MZ, Murashima ADAB, Adriano L, Alves M, Rocha EM. Oxidative Stress in the Protection and Injury of the Lacrimal Gland and the Ocular Surface: are There Perspectives for Therapeutics? Front Cell Dev Biol 2022; 10:824726. [PMID: 35359431 PMCID: PMC8963457 DOI: 10.3389/fcell.2022.824726] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 02/16/2022] [Indexed: 12/24/2022] Open
Abstract
Oxidative stress (OS) is a major disruption in the physiology of the lacrimal functional unit (LFU). Antioxidant enzymes have dual protective activities: antioxidant and antimicrobial activities. Peroxidases have been indistinctly used as markers of the secretory activity of the LFU and implicated in the pathophysiology, diagnosis and treatment of dry eye disease (DED), even though they comprise a large family of enzymes that includes lactoperoxidase (LPO) and glutathione peroxidase (GPO), among others. Assays to measure and correlate OS with other local LFU phenomena have methodological limitations. Studies implicate molecules and reactions involved in OS as markers of homeostasis, and other studies identify them as part of the physiopathology of diseases. Despite these conflicting concepts and observations, it is clear that OS is influential in the development of DED. Moreover, many antioxidant strategies have been proposed for its treatment, including calorie restriction to nutritional supplementation. This review offers a critical analysis of the biological mechanisms, diagnostic outcomes, drug use, dietary supplements, and life habits that implicate the influence of OS on DED.
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Affiliation(s)
- Camila Nunes Lemos
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
- *Correspondence: Camila Nunes Lemos,
| | - Lilian Eslaine Costa Mendes da Silva
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Jacqueline Ferreira Faustino
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Marina Zilio Fantucci
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Adriana de Andrade Batista Murashima
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Leidiane Adriano
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
| | - Monica Alves
- Department of Ophthalmology and Otorhinolaryngology, Faculty of Medical Sciences, State University of Campinas (Unicamp), Campinas, Brazil
| | - Eduardo Melani Rocha
- Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Ribeirao Preto Medical School, University of Sao Paulo, Ribeirao Preto, Brazil
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Al-Serwi RH, El-Kersh AOFO, El-Akabawy G. Human dental pulp stem cells attenuate streptozotocin-induced parotid gland injury in rats. Stem Cell Res Ther 2021; 12:577. [PMID: 34775989 PMCID: PMC8591949 DOI: 10.1186/s13287-021-02646-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 10/27/2021] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Diabetes mellitus causes deterioration in the body, including serious damage of the oral cavity related to salivary gland dysfunction, characterised by hyposalivation and xerostomia. Human dental pulp stem cells (hDPSCs) represent a promising therapy source, due to the easy, minimally invasive surgical access to these cells and their high proliferative capacity. It was previously reported that the trophic support mediated by these cells can rescue the functional and structural alterations of damaged salivary glands. However, potential differentiation and paracrine effects of hDPSCs in diabetic-induced parotid gland damage have not been investigated. Our study aimed to investigate the therapeutic effects of intravenous transplantation of hDPSCs on parotid gland injury in a rat model of streptozotocin (STZ)-induced type 1 diabetes. METHODS Thirty Sprague-Dawley male rats were randomly categorised into three groups: control, diabetic (STZ), and transplanted (STZ + hDPSCs). The hDPSCs or the vehicles were injected into the rats' tail veins, 7 days after STZ injection. Fasting blood glucose levels were monitored weekly. A glucose tolerance test was performed, and the parotid gland weight, salivary flow rate, oxidative stress indices, parotid gland histology, and caspase-3, vascular endothelial growth factor, proliferating cell nuclear antigen, neuronal nitric oxide synthase, endothelial nitric oxide synthase, and tetrahydrobiopterin biosynthetic enzyme expression levels in parotid tissues were assessed 28 days post-transplantation. RESULTS Transplantation of hDPSCs decreased blood glucose, improved parotid gland weight and salivary flow rate, and reduced oxidative stress. The cells migrated to the STZ-injured parotid gland and differentiated into acinar, ductal, and myoepithelial cells. Moreover, hDPSCs downregulated the expression of caspase-3 and upregulated the expression of vascular endothelial growth factor and proliferating cell nuclear antigen, likely exerting pro-angiogenic and anti-apoptotic effects and promoting endogenous regeneration. In addition, the transplanted cells enhanced the parotid nitric oxide-tetrahydrobiopterin pathway. CONCLUSIONS Our results showed that hDPSCs migrated to and survived within the STZ-injured parotid gland, where functional and morphological damage was prevented due to the restoration of normal glucose levels, differentiation into parotid cell populations, and stimulation of paracrine-mediated regeneration. Thus, hDPSCs may have potential in the treatment of diabetes-induced parotid gland injury.
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Affiliation(s)
- Rasha H Al-Serwi
- Oral Basic Sciences, College of Dentistry, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
- Oral Biology Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | | | - Gehan El-Akabawy
- Department of Basic Sciences, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Menoufia, Egypt.
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10
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Tumer MK, Cicek M. Differential immunohistochemical expression of type I collagen and matrix metalloproteinase 2 among major salivary glands of young and geriatric mice. J Appl Oral Sci 2018; 26:e20170484. [PMID: 29898178 PMCID: PMC6007966 DOI: 10.1590/1678-7757-2017-0484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 02/26/2018] [Indexed: 12/18/2022] Open
Abstract
Objective This study aimed to demonstrate the immunohistochemical changes associated with MMP-2 and type 1 collagen separately for the first time in the major salivary glands (the parotid, submaxillary, and sublingual glands) that occur with aging in mice. Material and Methods Fourteen Balb/c white mice (50-80 g) were used in this study. The animals were divided into two equal groups. Group I consisted of young animals (2-month-old) (n=7) and Group II consisted of older animals (18-month-old) (n=7). After routine histological follow-ups, Hematoxylin-eosin (H&E), Masson’s Trichrome staining and immunohistochemical staining was performed for type I collagen and MMP-2. Results We observed that there were age-related decreases in the number of acinar cells, increase in eosinophilic zymogen granules in cells, collagen accumulation in fibrotic areas and dilatation in interlobular ducts. Also, while type I collagen and MMP-2 immunoreactivity were moderate in the salivary glands of the young mice, they were high in the salivary glands of the old mice (p=0.001). In the H-score assessment, MMP-2 immunoreactivity was lower at a significant level in young mice than in old mice (p=0.001). Conclusions This study showed that anatomical, physiological and morphological abnormalities occur in all three major salivary glands as a natural consequence of aging.
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Affiliation(s)
- Mehmet Kemal Tumer
- Gaziomanspasa University, Faculty of Dentistry, Department of Oral and Maxillofacial Surgery, Tokat, Turkey.,Gaziosmanpasa University, Faculty of Medicine, Department of Medical Biology, Tokat, Turkey
| | - Mustafa Cicek
- Kahramanmaras Sütcü Imam University, Faculty of Medicine, Department of Anatomy, Kahramanmaras, Turkey
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11
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Abd El-Haleem MR, Selim AO, Attia GM. Bone marrow-derived mesenchymal stem cells ameliorate parotid injury in ovariectomized rats. Cytotherapy 2017; 20:204-217. [PMID: 29254763 DOI: 10.1016/j.jcyt.2017.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 10/20/2017] [Accepted: 10/27/2017] [Indexed: 01/28/2023]
Abstract
BACKGROUND AIMS Parotid hypofunction causes life-disrupting effects, and there are no effective medications for xerostomia. We hypothesized that mesenchymal stem cells (MSCs) have repairing effects on parotid glands of ovariectomized (OVX) rats. METHODS Forty-five adult female rats were divided into three equal groups: group I (Control group), group II (OVX-group) and group III (OVX rats that received MSCs at 4 and 8 weeks post-ovariectomy). At 12 weeks post-ovariectomy, histological (Masson's trichrome and periodic acid-Schiff with alcian blue stains), immunohistochemical (caspase-3 and CD44) and morphometric studies and salivary flow rate and saliva pH determination were carried out. RESULTS Histologically, the OVX group displayed numerous irregular vacuolated acini, thickened septa with marked cellular infiltration and vascular congestion. Degenerated organelles and few or irregular secretory granules with a different density were observed. Caspase-3-positive cells were highly expressed. MSC-treated glands exhibited a considerable degree of preservation of glandular architecture with numerous CD44-expressing and few caspase-3-expressing cells. Significant decrease of the salivary flow rate in the OVX group was detected, which reverted to normal levels in group III. CONCLUSIONS MSCs ameliorated the damaging effects of ovariectomy on the parotid glands.
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Affiliation(s)
- Manal R Abd El-Haleem
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Assmaa O Selim
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Zagazig, Egypt.
| | - Ghalia M Attia
- Department of Histology and Cell Biology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
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12
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Kołodziej U, Maciejczyk M, Miąsko A, Matczuk J, Knaś M, Żukowski P, Żendzian-Piotrowska M, Borys J, Zalewska A. Oxidative Modification in the Salivary Glands of High Fat-Diet Induced Insulin Resistant Rats. Front Physiol 2017; 8:20. [PMID: 28184199 PMCID: PMC5266730 DOI: 10.3389/fphys.2017.00020] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 01/10/2017] [Indexed: 02/04/2023] Open
Abstract
Still little is known about the role of oxidative stress (OS) in the pathogenesis of the salivary gland dysfunction in the course of insulin resistance (IR). To induce IR rats was fed with a high fat diet (HFD) during 8 weeks. Stimulated and non-stimulated salivary flow rate, total protein, as well as oxidative damage markers: 4-HNE protein adduct, 8-isoprostanes (8-isoP), 8-hydroxy-D-guanosine (8-OHdG), advanced oxidation protein product (AOPP), and protein carbonyls (PC) were determined in the plasma and submandibular and parotid glands of IR and control rats. We have shown a significant decrease (45%) of the stimulated salivary flow rate, and in the total protein concentration in the parotid (35%) and submandibular (10%) glands of HFD IR as compared to the control rats. The level of 4-HNE protein adduct (15%) and 8-isoP (20%) in the submandibular glands of IR rats as well as total level of 4-HNE protein adduct (39%), 8-isoP (27%), AOPP (25%), PC (32%), and 8-OHdG (18%) in the parotid glands of IR rats were significantly higher as compared to the control group. We showed no correlation between the assessed OS parameters in the plasma and salivary glands. However, the redox balance in both glands shifted toward the oxidative status, parotid glands of IR rats are exposed to greater intensity OS. Stimulated secretory ability and mechanisms involved in the synthesis/secretion of proteins in the salivary glands are depressed in the course of IR. Oxidative damage in the salivary glands arises independently from the general OS in the course of insulin resistance induced by a high fat diet.
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Affiliation(s)
- Urszula Kołodziej
- Department of Conservative Dentistry, Medical University Bialystok Bialystok, Poland
| | - Mateusz Maciejczyk
- Department of Physiology, Medical University of Bialystok Bialystok, Poland
| | - Agnieszka Miąsko
- Department of Histology and Embryology, Medical University of Bialystok Bialystok, Poland
| | - Jan Matczuk
- County Veterinary Inspection Bialystok, Poland
| | - Małgorzata Knaś
- Department of Health Care Higher Vocational School Suwalki, Poland
| | - Piotr Żukowski
- Department of Restorative Dentistry, Croydon University Hospital Croydon, England
| | | | - Jan Borys
- Department of Maxillofacial and Plastic Surgery, Medical University of Bialystok Bialystok, Poland
| | - Anna Zalewska
- Department of Conservative Dentistry, Medical University Bialystok Bialystok, Poland
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Maciejczyk M, Kossakowska A, Szulimowska J, Klimiuk A, Knaś M, Car H, Niklińska W, Ładny JR, Chabowski A, Zalewska A. Lysosomal Exoglycosidase Profile and Secretory Function in the Salivary Glands of Rats with Streptozotocin-Induced Diabetes. J Diabetes Res 2017; 2017:9850398. [PMID: 29464184 PMCID: PMC5804338 DOI: 10.1155/2017/9850398] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 11/06/2017] [Accepted: 11/23/2017] [Indexed: 12/11/2022] Open
Abstract
Before this study, there had been no research evaluating the relationship between a lysosomal exoglycosidase profile and secretory function in the salivary glands of rats with streptozotocin- (STZ-) induced type 1 diabetes. In our work, rats were divided into 4 groups of 8 animals each: control groups (C2, C4) and diabetic groups (STZ2, STZ4). The secretory function of salivary glands-nonstimulated and stimulated salivary flow, α-amylase, total protein-and salivary exoglycosidase activities-N-acetyl-β-hexosaminidase (HEX, HEX A, and HEX B), β-glucuronidase, α-fucosidase, β-galactosidase, and α-mannosidase-was estimated both in the parotid and submandibular glands of STZ-diabetic and control rats. The study has demonstrated that the activity of most salivary exoglycosidases is significantly higher in the parotid and submandibular glands of STZ-diabetic rats as compared to the healthy controls and that it increases as the disease progresses. Reduced secretory function of diabetic salivary glands was also observed. A significant inverse correlation between HEX B, α-amylase activity, and stimulated salivary flow in diabetic parotid gland has also been shown. Summarizing, STZ-induced diabetes leads to a change in the lysosomal exoglycosidase profile and reduced function of the salivary glands.
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Affiliation(s)
- Mateusz Maciejczyk
- Department of Physiology, Medical University of Bialystok, 2c Mickiewicza Street, 15-233 Bialystok, Poland
| | - Agnieszka Kossakowska
- Department of Conservative Dentistry, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274 Bialystok, Poland
| | - Julita Szulimowska
- Department of Pedodontics, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274 Bialystok, Poland
| | - Anna Klimiuk
- Department of Conservative Dentistry, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274 Bialystok, Poland
| | - Małgorzata Knaś
- Department of Cosmetology, Lomza State University of Applied Sciences, Akademicka 1 str, 18-400 Lomza, Poland
| | - Halina Car
- Department of Experimental Pharmacology, Medical University of Bialystok, 37 Szpitalna Street, 15-767 Bialystok, Poland
| | - Wiesława Niklińska
- Department of Histology and Embryology, Medical University of Bialystok, 13 Waszyngtona Street, Bialystok, Poland
| | - Jerzy Robert Ładny
- Department of Emergency Medicine and Disasters, Medical University of Bialystok, 37 Szpitalna Street, 15-767 Bialystok, Poland
| | - Adrian Chabowski
- Department of Physiology, Medical University of Bialystok, 2c Mickiewicza Street, 15-233 Bialystok, Poland
| | - Anna Zalewska
- Department of Conservative Dentistry, Medical University of Bialystok, 24a M. Sklodowskiej-Curie Street, 15-274 Bialystok, Poland
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14
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Knaś M, Maciejczyk M, Daniszewska I, Klimiuk A, Matczuk J, Kołodziej U, Waszkiel D, Ładny JR, Żendzian-Piotrowska M, Zalewska A. Oxidative Damage to the Salivary Glands of Rats with Streptozotocin-Induced Diabetes-Temporal Study: Oxidative Stress and Diabetic Salivary Glands. J Diabetes Res 2016; 2016:4583742. [PMID: 27478848 PMCID: PMC4961808 DOI: 10.1155/2016/4583742] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 05/27/2016] [Accepted: 06/06/2016] [Indexed: 12/14/2022] Open
Abstract
Objective. This study evaluated oxidative damage caused to the salivary glands in streptozotocin-induced diabetes (DM). Materials and Methods. Rats were divided into 4 groups: groups 1 and 2, control rats, and groups 3 and 4, DM rats. 8-Hydroxy-2'-deoxyguanosine (8-OHdG), protein carbonyl (PC), 4-hydroxynonenal protein adduct (4-HNE), oxidized and/or MDA-modified LDL-cholesterol (oxy-LDL/MDA), 8-isoprostanes (8-isoP), and oxidative stress index (OSI) were measured at 7 (groups 1 and 3) and 14 (groups 2 and 4) days of experiment. Results. The unstimulated salivary flow in DM rats was reduced in the 2nd week, while the stimulated flow was decreased throughout the duration of the experiment versus control. OSI was elevated in both diabetic glands in the 1st and 2nd week, whereas 8-isoP and 8-OHdG were higher only in the parotid gland in the second week. PC and 4-HNE were increased in the 1st and 2nd week, whereas oxy-LDL/MDA was increased in the 2nd week in the diabetic parotid glands. Conclusions. Diabetes induces oxidative damage of the salivary glands, which seems to be caused by processes taking place in the salivary glands, independently of general oxidative stress. The parotid glands are more vulnerable to oxidative damage in these conditions.
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Affiliation(s)
- M. Knaś
- Department of Health Care, Higher Vocational School, Noniewicza 10 Street, 16-400 Suwalki, Poland
| | - M. Maciejczyk
- Students' Scientific Group “Stomatological Biochemistry”, Department of Conservative Dentistry, Medical University of Bialystok, Sklodowskiej M.C. 24a Street, 15-274 Bialystok, Poland
| | - I. Daniszewska
- Specialist Dental Practice, I. Daniszewska, Żeromskiego 5 Street, 15-225 Bialystok, Poland
| | - A. Klimiuk
- Department of Conservative Dentistry, Medical University Bialystok, Sklodowskiej M.C. 24a Street, 15-274 Bialystok, Poland
| | - J. Matczuk
- County Veterinary Inspection, Zwycięstwa 26B Street, 15-959 Bialystok, Poland
| | - U. Kołodziej
- Department of Conservative Dentistry, Medical University Bialystok, Sklodowskiej M.C. 24a Street, 15-274 Bialystok, Poland
| | - D. Waszkiel
- Department of Conservative Dentistry, Medical University Bialystok, Sklodowskiej M.C. 24a Street, 15-274 Bialystok, Poland
| | - J. R. Ładny
- Department of Emergency Medicine and Disaster, Medical University of Bialystok, Szpitalna 37 Street, 15-295 Bialystok, Poland
| | - M. Żendzian-Piotrowska
- Department of Hygiene, Epidemiology and Ergonomics, Medical University of Bialystok, Mickiewicza 2c Street, 15-222 Bialystok, Poland
| | - A. Zalewska
- Department of Conservative Dentistry, Medical University Bialystok, Sklodowskiej M.C. 24a Street, 15-274 Bialystok, Poland
- *A. Zalewska:
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15
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Buyuk B, Parlak SN, Keles ON, Can I, Yetim Z, Toktay E, Selli J, Unal B. Effects of Diabetes on Post-Menopausal Rat Submandibular Glands: A Histopathological and Stereological Examination. Eurasian J Med 2015; 47:199-207. [PMID: 26644770 DOI: 10.5152/eurasianjmed.2015.80] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJECTIVE The menopause in elderly women is a physiological process where ovarian and uterine cycles end. Diabetes means higher blood glucose level that is a metabolic disease and has an increased incidence. The aim of the study was to examine the single or combined effects of menopause and diabetes that causes pathophysiological processes on submandibular gland on ovariectomy and diabetes induced rat models. MATERIALS AND METHODS Sprague Dawley twelve weeks old female (n=24) rats were divided randomly into four groups; Healthy control group (n=6), diabetic group (DM, n=6), ovariectomized group (OVX, n=6), post ovariectomy diabetes induced group (DM+OVX, n=6) individually. Histopathological, histochemical and stereological analyses were done in these groups. RESULTS Significant neutrophil cell infiltrations and myoepithelial cell proliferations, granular duct and seromucous acini damages and changes in the content of especially seromucous acini secretion in DM and/or OVX groups and distinctive interstitial and striated duct damages in post ovariectomy diabetes induced group were detected. Alterations ingranular ducts hypertrophic and in seromucous acini atrophic were determined in DM and/or OVX groups. CONCLUSION The results revealed the pathophysiological processes that lead to morphological and functional alterations on the cellular level in submandibular glands. The molecular mechanisms related with pathogenesis of diabetes and menopause need further investigation.
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Affiliation(s)
- Basak Buyuk
- Department of Histology and Embryology, Atatürk University Faculty of Medicine, Erzurum, Turkey
| | - Secil Nazife Parlak
- Department of Histology and Embryology, Atatürk University Faculty of Medicine, Erzurum, Turkey
| | - Osman Nuri Keles
- Department of Histology and Embryology, Atatürk University Faculty of Medicine, Erzurum, Turkey
| | - Ismail Can
- Department of Histology and Embryology, Atatürk University Faculty of Medicine, Erzurum, Turkey
| | - Zeliha Yetim
- Department of Histology and Embryology, Atatürk University Faculty of Medicine, Erzurum, Turkey
| | - Erdem Toktay
- Department of Histology and Embryology, Atatürk University Faculty of Medicine, Erzurum, Turkey
| | - Jale Selli
- Department of Histology and Embryology, Atatürk University Faculty of Medicine, Erzurum, Turkey
| | - Bunyami Unal
- Department of Histology and Embryology, Atatürk University Faculty of Medicine, Erzurum, Turkey
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Zalewska A, Knaś M, Maciejczyk M, Waszkiewicz N, Klimiuk A, Choromańska M, Matczuk J, Waszkiel D, Car H. Antioxidant profile, carbonyl and lipid oxidation markers in the parotid and submandibular glands of rats in different periods of streptozotocin induced diabetes. Arch Oral Biol 2015; 60:1375-86. [DOI: 10.1016/j.archoralbio.2015.06.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 02/21/2015] [Accepted: 06/14/2015] [Indexed: 01/29/2023]
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17
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Roganović J, Djukić LJ, Kršljak E, Tanić N, Stojić D. Reduced muscarinic parotid secretion is underlain by impaired NO signaling in diabetic rabbits. Oral Dis 2015; 21:634-40. [PMID: 25703905 DOI: 10.1111/odi.12327] [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: 11/06/2014] [Revised: 01/23/2015] [Accepted: 02/10/2015] [Indexed: 11/29/2022]
Abstract
OBJECTIVES The influence of experimental diabetes (alloxan, 100 mg kg(-1) ) was studied on rabbit parotid gland function. MATERIAL AND METHODS Carbachol-induced parotid secretion in vivo, and in vitro quantification of inducible nitric oxide synthase (iNOS) mRNA expression, by real-time RT-PCR, and activity of superoxide dismutase (SOD) and total antioxidant capacity (TAC) in commercial colorimetric assays were measured in parotid glands of non-diabetic and diabetic rabbits. RESULTS Carbachol-induced dose-dependent increase in parotid secretion significantly reduced in diabetic rabbits. Functional studies in the presence of muscarinic receptor and nitric oxide synthase (NOS) antagonists revealed that in M3 receptor-mediated carbachol secretion, nitric oxide, deriving mainly from neuronal NOS (nNOS) in control, and iNOS in diabetic rabbits, was involved. Also, upregulation of iNOS mRNA expression and enhanced SOD activity and TAC were detected in diabetic glands. CONCLUSIONS Our data suggest that decreased M3 receptor-mediated parotid secretion in diabetic rabbits appears to be due to alterations in NO signaling, mainly due to iNOS induction, accompanied by elevated antioxidant response.
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Affiliation(s)
- J Roganović
- Department of Pharmacology in Dentistry, School of Dental medicine, University of Belgrade, Belgrade, Serbia
| | - L J Djukić
- Department of Pharmacology in Dentistry, School of Dental medicine, University of Belgrade, Belgrade, Serbia
| | - E Kršljak
- Department of Physiology, School of Dental medicine, University of Belgrade, Belgrade, Serbia
| | - N Tanić
- Department of Neurobiology, Institute for Biological Research 'Siniša Stanković', University of Belgrade, Belgrade, Serbia
| | - D Stojić
- Department of Pharmacology in Dentistry, School of Dental medicine, University of Belgrade, Belgrade, Serbia
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Polyploidy Analysis and Attenuation of Oxidative Stress in Hepatic Tissue of STZ-Induced Diabetic Rats Treated with an Aqueous Extract of Vochysia rufa. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:316017. [PMID: 25763088 PMCID: PMC4339860 DOI: 10.1155/2015/316017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2014] [Revised: 12/23/2014] [Accepted: 12/24/2014] [Indexed: 02/06/2023]
Abstract
Diabetes mellitus (DM) is characterized by hyperglycemia and alterations in the metabolism of lipids, carbohydrates, and proteins. Due to its hypoglycemic effect Vochysia rufa is frequently used in Uberlandia, Brazil, to treat DM. Despite its popularity, there is little information about its effect on hepatic tissue. Therefore, we evaluated the histoarchitecture, oxidative stress parameters, and polyploidy of liver tissue from streptozotocin- (STZ-) induced diabetic rats treated with aqueous extract of Vochysia rufa (AEV). Histology was determined by fixing the livers, processing, and staining with HE. Oxidative stress was determined by evaluating CAT, GPx, and SOD activity in liver homogenates and hepatic mitochondria fraction and by measuring GST, GSH levels and lipid peroxidation (MDA). Polyploidy was determined by subjecting isolated hepatocyte nuclei to flow cytometry. In the diabetic group, GST activity and GSH rates decreased whereas liver homogenate analysis showed that GPx, SOD activity and MDA increased. AEV treatment restored all parameters to normal levels. The oxidative stress analysis of hepatic mitochondria fraction showed similar results. Lower polyploid cell populations were found in the diabetic rat livers, even after glibenclamide treatment. Thus, AEV treatment efficiently reduced hepatic oxidative stress caused by STZ-induced diabetes and produced no morphological changes in the histological analysis.
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Mohamed DA, Elnegris HM, Wahdan RA. Histological effect of ovariectomy and estrogen replacement on parotid gland of adult albino rat. Histol Histopathol 2015. [DOI: 10.7243/2055-091x-2-23] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Oliveira RJS, de Oliveira VN, Deconte SR, Calábria LK, da Silva Moraes A, Espindola FS. Phaseolamin treatment prevents oxidative stress and collagen deposition in the hearts of streptozotocin-induced diabetic rats. Diab Vasc Dis Res 2014; 11:110-7. [PMID: 24553253 DOI: 10.1177/1479164114521643] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The development of cardiovascular complications in patients with diabetes is often associated with an imbalance between reactive oxygen species and antioxidant systems. This imbalance can contribute to high cardiac collagen content, which increases cross-linking and the stiffness of the myocardium. In this study, the protective effect of phaseolamin against damage under oxidative stress and collagen deposition in the cardiac tissue in association with diabetes was evaluated. Non-diabetic and diabetic animals were distributed into groups and treated for 20 days with commercial phaseolamin. The phaseolamin treatment increased total antioxidant activity but reduced the following in diabetic rats: (a) hyperglycaemic state, (b) catalase and superoxide dismutase activity and (c) tissue damage caused by lipid peroxidation. Additionally, the phaseolamin treatment attenuated the collagen levels compared to non-treated diabetic rats. Thus, the short-term anti-hyperglycaemic effect of the phaseolamin treatment may prevent the initial changes caused by oxidative stress and the deposition of collagen, as well as reduce the incidence of heart complications.
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Affiliation(s)
- Renato J S Oliveira
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Uberlândia, Brazil
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da Costa AV, Calábria LK, Furtado FB, de Gouveia NM, Oliveira RJDS, de Oliveira VN, Beletti ME, Espindola FS. Neuroprotective effects of Pouteria ramiflora (Mart.) Radlk (Sapotaceae) extract on the brains of rats with streptozotocin-induced diabetes. Metab Brain Dis 2013; 28:411-9. [PMID: 23467904 DOI: 10.1007/s11011-013-9390-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2012] [Accepted: 02/15/2013] [Indexed: 10/27/2022]
Abstract
Diabetes mellitus is a chronic disease involving persistent hyperglycemia, which causes an imbalance between reactive oxygen species and antioxidant enzymes and results in damage to various tissues, including the brain. Many societies have traditionally employed medicinal plants to control the hyperglycemia. Pouteria ramiflora, a species occurring in the savanna biome of the Cerrado (Brazil) has been studied because of its possible ability to inhibit carbohydrate digestion. Rats with streptozotocin-induced diabetes treated with an alcoholic extract of Pouteria ramiflora show an improved glycemic level, increased glutathione peroxidase activity, decreased superoxide dismutase activity, and reduced lipid peroxidation and antioxidant status. The extract also restored myosin-Va expression and the nuclear diameters of pyramidal neurons of the CA3 subregion and that of the polymorphic cells of the hilus. We conclude that Pouteria ramiflora extract exerts a neuroprotective effect against oxidative damage and myosin-Va expression and is able to prevent hippocampal neuronal loss in the CA3 and hilus subfields of diabetic rats. However, future studies are needed to understand the mechanism of action of Pouteria ramiflora extract in acute and chronic diabetes.
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Affiliation(s)
- Alice Vieira da Costa
- Institute of Genetics and Biochemistry, Federal University of Uberlândia, Campus Umuarama, Av. Pará, s/n, 38400-902, Uberlândia, MG, Brazil
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GOUVEIA NEIREMDE, ALBUQUERQUE CIBELELDE, ESPINDOLA LAILAS, ESPINDOLA FOUEDS. Pouteria ramiflora extract inhibits salivary amylolytic activity and decreases glycemic level in mice. AN ACAD BRAS CIENC 2013; 85:1141-8. [DOI: 10.1590/s0001-37652013000300016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 02/27/2013] [Indexed: 12/12/2022] Open
Abstract
In this study, extracts of plant species from the Cerrado biome were assessed in order to find potential inhibitors of human salivary alpha-amylase. The plants were collected and extracts were obtained from leaves, bark, and roots. We performed a preliminary phytochemical analysis and a screening for salivar alpha-amylase inhibitory activity. Only three botanical families (Sapotaceae, Sapindaceae and Flacourtiaceae) and 16 extracts showed a substantial inhibition (>75%) of alpha-amylase. The ethanolic extracts of Pouteria ramiflora obtained from stem barks and root barks decreased amylolytic activity above 95% at a final concentration of 20 µg/mL. Thus, adult male Swiss mice were treated orally with P. ramiflora in acute toxicity and glycemic control studies. Daily administration with 25, 50 and 100 mg/kg of aqueous extract of P. ramiflora for eight days can reduce significantly body weight and blood glucose level in mice. These data suggest that the crude polar extract of P. ramiflora decreases salivary amylolytic activity while lowering the blood levels of glucose.
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Duarte PM, Napimoga MH, Fagnani EC, Santos VR, Bastos MF, Ribeiro FV, Araújo VC, Demasi APD. The expression of antioxidant enzymes in the gingivae of type 2 diabetics with chronic periodontitis. Arch Oral Biol 2011; 57:161-8. [PMID: 21975116 DOI: 10.1016/j.archoralbio.2011.08.007] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2011] [Revised: 08/03/2011] [Accepted: 08/04/2011] [Indexed: 10/17/2022]
Abstract
OBJECTIVES There is controversial evidence regarding the levels of antioxidant molecules in type 2 diabetes periodontitis patients. Thus, the aim of the present study was to evaluate the gene expression of antioxidant enzymes in the gingival tissue of poorly and well-controlled type 2 diabetic subjects with chronic periodontitis (CP). DESIGN Gingival biopsies were harvested from systemically and periodontally healthy subjects (n=12), systemically healthy subjects with CP (n=15), well-controlled (n=8) and poorly controlled (n=14) diabetic subjects with CP. The messenger RNA (mRNA) levels of peroxiredoxin (PRDX) 1 and 2, catalase (CAT), glutathione peroxidase (GPX1) and superoxide dismutase (SOD) 1 and 2 were measured by quantitative polymerase chain reaction (qPCR). RESULTS The results showed that PRDX1 and GPX1 were up-regulated by periodontitis (p<0.05), independently of the glycaemic status, whilst PRDX2 and SOD2 genes were slightly influenced by periodontitis, but significantly induced when periodontitis was associated with DM, especially under a poor glycaemic control (p<0.05). Moreover, CAT and SOD1 expressions were not significantly influenced by any of these inflammatory disorders (p>0.05). CONCLUSION In conclusion, both PRDX1 and GPX1 were overexpressed in CP whilst PRDX2 and SOD2 were up-regulated especially in the poorly controlled diabetic group with CP.
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Affiliation(s)
- Poliana M Duarte
- Department of Periodontology, Dental Research Division, Guarulhos University, São Paulo, Brazil
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