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Minervini G, Marrapodi MM, La Verde M, Meto A, Siurkel Y, Ronsivalle V, Cicciù M. Pregnancy related factors and temporomandibular disorders evaluated through the diagnostic criteria for temporomandibular disorders (DC/TMD) axis II: a cross sectional study. BMC Oral Health 2024; 24:226. [PMID: 38350935 PMCID: PMC10863208 DOI: 10.1186/s12903-024-03930-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 01/23/2024] [Indexed: 02/15/2024] Open
Abstract
INTRODUCTION Temporomandibular disorder (TMD) is a multifaceted condition impacting the chewing system, with its frequency varying across different age groups and showing a higher incidence in women. The involvement of estrogen in TMD has been examined due to the presence of estrogen receptors in the TMJ area. However, the exact effect of estrogen on TMD is complex. During pregnancy, marked by significant hormonal fluctuations, the impact on TMD has been hypothesized but remains unclear due to inconsistent results from various studies. METHODS In this cross-sectional study, we enrolled 32 pregnant women consecutively. We gathered information on demographics, TMD evaluations (using the Graded Chronic Pain Scale, Jaw Functional Limitation Scale-20, and Oral Behaviors Checklist), and mental health assessments (including Patient Health Questionnaire-9, Patient Health Questionnaire-15, and Generalized Anxiety Disorder-7). We employed descriptive statistics to summarize continuous and categorical data and used t-tests and chi-square tests for comparisons. We also conducted multivariate linear regression, adjusted for demographic factors, to investigate correlations. RESULTS The study group mainly consisted of women aged 30-35 (40.6%) and 25-30 (18.8%). Most participants had completed high school (50%) and were married (71.9%). A notable association was found between younger women (under 30) and higher levels of somatic symptoms (p = 0.008) and generalized anxiety (p = 0.015). Women in their second trimester showed lower severity of somatic symptoms (p = 0.04). A significant link was also observed between depression severity and somatic symptom severity (p = 0.01). However, we found no significant correlations with other TMD-related health aspects. DISCUSSION Our study identified significant associations between psychosomatic and psychological symptoms with variables like age and pregnancy trimester in pregnant women. However, it notably failed to establish a clear relationship between pregnancy-related factors and the severity of temporomandibular disorders (TMD). More comprehensive studies with larger participant pools are necessary to further validate and expand these findings.
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Affiliation(s)
- Giuseppe Minervini
- Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, Tamil Nadu, India.
- Multidisciplinary Department of Medical-Surgical and Odontostomatological Specialties, University of Campania "Luigi Vanvitelli", Naples, 80121, Italy.
| | - Maria Maddalena Marrapodi
- Department of Woman, Child and General and Specialized Surgery, Obstetrics and Gynecology Unit, University of Campania "Luigi Vanvitelli", Largo Madonna delle Grazie 1, Naples, 80138, Italy
| | - Marco La Verde
- Department of Woman, Child and General and Specialized Surgery, Obstetrics and Gynecology Unit, University of Campania "Luigi Vanvitelli", Largo Madonna delle Grazie 1, Naples, 80138, Italy.
| | - Aida Meto
- Department of Dentistry, Faculty of Dental Medicine, University of Aldent, Tirana, Albania
- Clinical Microbiology, School of Dentistry, University of Modena and Reggio Emilia, Modena, Italy
| | - Yuliia Siurkel
- International European University School of Medicine, Akademika Hlushkova Ave, 42В, Kyiv, 03187, Ukraine.
| | - Vincenzo Ronsivalle
- Department of Biomedical and Surgical and Biomedical Sciences, Catania University, Catania, 95123, Italy
| | - Marco Cicciù
- Department of Biomedical and Surgical and Biomedical Sciences, Catania University, Catania, 95123, Italy
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Yang Y, Lu M, Qian J, Xu Y, Li B, Le G, Xie Y. Dietary Methionine Restriction Promotes Fat Browning and Attenuates Hepatic Lipid Accumulation in High-Choline-Fed Mice Associated with the Improvement of Thyroid Function. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:1447-1463. [PMID: 36632677 DOI: 10.1021/acs.jafc.2c05535] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
This study aims to explore the influences of a methionine-restricted diet (MRD) on fat browning and hepatic lipid accumulation in mice fed with a high-choline diet (HCD) and their possible mechanisms. ICR mice were randomly divided into three groups and fed with a normal diet (0.86% methionine + 0.20% choline, ND), HCD (0.86% methionine + 1.20% choline), or MRD (0.17% methionine + 1.20% choline) for 90 consecutive days. We found that MRD reduced body weight and fat mass; increased heat production and ambulatory locomotor activity; reduced hepatic and plasma lipid levels, hepatic fatty infiltration area, and adipocyte volume in white and brown adipose tissue; promoted fat browning, especially upregulated gene and protein expression levels of uncoupling protein 1 (UCP1); and promoted fat catabolism and inhibited fat anabolism in the liver and adipose tissue. Moreover, MRD increased antioxidant defenses and reduced inflammatory cytokine levels in the thyroid, blood, and liver. Furthermore, MRD improved thyroid morphological structure, promoted the synthesis and secretion of thyroid hormones, and enhanced the actions of thyroid hormones on its receptor organs (liver and adipose tissue). These findings suggested that MRD promoted fat browning and attenuated hepatic lipid accumulation in HCD mice associated with the improvement of thyroid function.
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Affiliation(s)
- Yuhui Yang
- National Engineering Laboratory/Key Laboratory of Henan Province, College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, Henan, China
| | - Manman Lu
- National Engineering Laboratory/Key Laboratory of Henan Province, College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, Henan, China
| | - Jing Qian
- National Engineering Laboratory/Key Laboratory of Henan Province, College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, Henan, China
| | - Yuncong Xu
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Bowen Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Guowei Le
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
| | - Yanli Xie
- National Engineering Laboratory/Key Laboratory of Henan Province, College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, Henan, China
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Isola G, Lombardi T. Advances in Clinical and Molecular Research of Biomaterials in Dentistry: The New Era for Dental Applications. J Clin Med 2022; 11:jcm11154512. [PMID: 35956127 PMCID: PMC9369395 DOI: 10.3390/jcm11154512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 07/29/2022] [Accepted: 08/01/2022] [Indexed: 11/16/2022] Open
Abstract
Biomaterials in dentistry play a fundamental role in the quality of regeneration mechanisms and in healing following different rehabilitation techniques [...]
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Affiliation(s)
- Gaetano Isola
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, 95124 Catania, Italy
- Correspondence: (G.I.); (T.L.); Tel.: +39-095-378-2638 (G.I.)
| | - Teresa Lombardi
- Department of Health Sciences, Magna Græcia University, 88100 Catanzaro, Italy
- Correspondence: (G.I.); (T.L.); Tel.: +39-095-378-2638 (G.I.)
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Leonardi RM. 3D Imaging Advancements and New Technologies in Clinical and Scientific Dental and Orthodontic Fields. J Clin Med 2022; 11:jcm11082200. [PMID: 35456293 PMCID: PMC9031999 DOI: 10.3390/jcm11082200] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Accepted: 04/12/2022] [Indexed: 02/01/2023] Open
Affiliation(s)
- Rosalia Maria Leonardi
- Department of Medical-Surgical Specialties-Section of Orthodontics, School of Dentistry, University of Catania, Policlinico Universitario "G. Rodolico- San Marco", Via Santa Sofia 78, 95123 Catania, Italy
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Khwannimit D, M Silva S, Desroches PE, Quigley AF, Kapsa RMI, Greene GW, Moulton SE. Potential Pulse-Facilitated Active Adsorption of Lubricin Polymer Brushes Can Both Accelerate Self-Assembly and Control Grafting Density. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:11188-11193. [PMID: 34506141 DOI: 10.1021/acs.langmuir.1c02263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Self-assembled lubricin (LUB) monolayers are an effective antiadhesive coating for biomedical applications. Long deposition times and limited control over the monolayer grafting density remain impediments to commercialization and applications in advanced sensor technologies. This work describes a novel potential pulse-facilitated coating method that reduces coating times to mere seconds while also providing high-level control over the achieved grafting density. This is the first time that the potential pulse-facilitated method is applied for direct assembling of a large and complex polyelectrolyte.
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Affiliation(s)
- Duangruedee Khwannimit
- ARC Centre of Excellence for Electromaterials Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, Melbourne/Victoria 3122, Australia
| | - Saimon M Silva
- ARC Centre of Excellence for Electromaterials Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, Melbourne/Victoria 3122, Australia
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, 41 Victoria Parade, Fitzroy, Melbourne/Victoria 3065, Australia
- Iverson Health Innovation Research Institute, Swinburne University of Technology, John Street, Hawthorn, Melbourne, Victoria 3122, Australia
| | - Pauline E Desroches
- Institute for Frontier Materials and ARC Centre of Excellence for Electromaterials Science, Deakin University, 221 Burwood Highway, Burwood, Melbourne/Victoria 3216, Australia
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, 41 Victoria Parade, Fitzroy, Melbourne/Victoria 3065, Australia
| | - Anita F Quigley
- School of Electrical and Biomedical Engineering, RMIT University, 124 La Trobe Street, Melbourne/Victoria 3001, Australia
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, 41 Victoria Parade, Fitzroy, Melbourne/Victoria 3065, Australia
- Department of Medicine, University of Melbourne, St. Vincent's Hospital, 41 Victoria Parade, Fitzroy, Melbourne/Victoria 3065, Australia
| | - Robert M I Kapsa
- School of Electrical and Biomedical Engineering, RMIT University, 124 La Trobe Street, Melbourne/Victoria 3001, Australia
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, 41 Victoria Parade, Fitzroy, Melbourne/Victoria 3065, Australia
- Department of Medicine, University of Melbourne, St. Vincent's Hospital, 41 Victoria Parade, Fitzroy, Melbourne/Victoria 3065, Australia
| | - George W Greene
- Institute for Frontier Materials and ARC Centre of Excellence for Electromaterials Science, Deakin University, 221 Burwood Highway, Burwood, Melbourne/Victoria 3216, Australia
| | - Simon E Moulton
- ARC Centre of Excellence for Electromaterials Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology, John Street, Hawthorn, Melbourne/Victoria 3122, Australia
- The Aikenhead Centre for Medical Discovery, St Vincent's Hospital Melbourne, 41 Victoria Parade, Fitzroy, Melbourne/Victoria 3065, Australia
- Iverson Health Innovation Research Institute, Swinburne University of Technology, John Street, Hawthorn, Melbourne, Victoria 3122, Australia
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Interface between Periodontal Tissues and Dental Materials: Dynamic Changes and Challenges. COATINGS 2021. [DOI: 10.3390/coatings11050485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Periodontal tissues play an important role in the correct aesthetics, function and comfort of the dentition [...]
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Isola G. New Advances On Biomaterials for Regenerative and Reparative Treatment Following Periodontal and Peri-implant Diseases. Open Dent J 2021. [DOI: 10.2174/1874210602115010084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Fichera G, Santonocito S, Ronsivalle V, Polizzi A, Torrisi S, Deodato L, Palazzo G, Isola G. Prevalence of Early Childhood Caries in Southern Italy: An Epidemiological Study. Int J Dent 2021; 2021:5106473. [PMID: 34122549 PMCID: PMC8169260 DOI: 10.1155/2021/5106473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 05/19/2021] [Indexed: 02/07/2023] Open
Abstract
The purpose of this study was to assess the prevalence of Early Childhood Caries (ECC) and oral habits among preschool children from a southern Italian cohort. The survey population consisted of 300 subjects randomly selected among children attending two kindergartens in Catania, Italy. The prevalence of ECC and oral habits were clinically evaluated. During the clinical evaluation, the oral hygiene of children was also assessed. Parents were also interviewed using a brief and simple online questionnaire aimed at investigating eating and oral hygiene habits. The selected sample age ranged between 3 and 5 years. The prevalence of ECC was 9.34%, and the most affected teeth were primary molars. Moreover, the prevalence of oral habits was 44.66%. Only two-thirds of the sample brush their teeth at least once per day. The prevalence of ECC among Sicilian children (9.33%) seems suitable with the rest of the country. The results of the present study evidenced that oral habits showed a high prevalence among preschool children. The level of oral hygiene among preschool children is still not sufficient.
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Affiliation(s)
- Grazia Fichera
- 1Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, Catania 95124, Italy
- 2Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Orthodontics, University of Messina, Via Consolare Valeria 1, Messina 98123, Italy
| | - Simona Santonocito
- 1Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, Catania 95124, Italy
| | - Vincenzo Ronsivalle
- 1Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, Catania 95124, Italy
- 2Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Orthodontics, University of Messina, Via Consolare Valeria 1, Messina 98123, Italy
| | - Alessandro Polizzi
- 1Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, Catania 95124, Italy
| | - Salvatore Torrisi
- 1Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, Catania 95124, Italy
| | - Ludovica Deodato
- 1Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, Catania 95124, Italy
| | - Giuseppe Palazzo
- 1Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, Catania 95124, Italy
| | - Gaetano Isola
- 1Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, Catania 95124, Italy
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9
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Palazzo G, Ronsivalle V, Oteri G, Lo Giudice A, Toro C, Campagna P, Patini R, Bocchieri S, Bianchi A, Isola G. Comparison between Additive and Subtractive CAD-CAM Technique to Produce Orthognathic Surgical Splints: A Personalized Approach. J Pers Med 2020; 10:jpm10040273. [PMID: 33322616 PMCID: PMC7768501 DOI: 10.3390/jpm10040273] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 11/30/2020] [Accepted: 12/09/2020] [Indexed: 02/07/2023] Open
Abstract
The present study aimed to evaluate the accuracy of digitally designed surgical splints generated with milling technology (material subtractive procedure) and with 3D printing technology (material additive procedure) through a customized approach in the planning of surgical orthognathic splints. Cone beam computed tomography (CBCT) examinations and scanned dental models of 10 subjects who had required surgical treatment of skeletal malocclusion were included. Simulation of the orthognathic surgery was performed according to dento-skeletal and aesthetic characteristics of the subjects and the visual treatment objective (VTO), using Dolphin3D software (Dolphin Imaging, version 11.0, Chatsworth, CA, USA). Afterward, the Appliance Designer software (3Shape A/S, Copenhagen, Denmark) was used to digitally design the surgical splints that were generated twice using laser stereolithography technology (DWS 0.29D, DWS, Vicenza, Italy) and milling technology (Sirona inLab MC X5). Finally, each physical splint was digitalized using a desktop scanner (D500 3D, 3Shape A/S, Copenhagen, Denmark) in order to perform deviation analysis using the original project as a reference. The relative percentage of matching (trueness) was calculated (Geomagic Control X software (3D Systems, version 2018.1.1, 3D Systems, Rock Hill, SC, USA). An Independent Student's t-test was used to statistically analyze the data. The milled splints showed a lower value of root to mean square (RMS) relative to the original project (0.20 mm ± 0.018) compared to the prototyped splints (0.31 ± 0.021) (p < 0.001). According to the present findings, surgical splints generated with milling technology present higher trueness compared with 3D printing technology.
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Affiliation(s)
- Giuseppe Palazzo
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, 95124 Catania, Italy; (G.P.); (V.R.); (A.L.G.); (C.T.); (P.C.); (S.B.); (A.B.)
| | - Vincenzo Ronsivalle
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, 95124 Catania, Italy; (G.P.); (V.R.); (A.L.G.); (C.T.); (P.C.); (S.B.); (A.B.)
| | - Giacomo Oteri
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, School of Dentistry, University of Messina, Via Consolare Valeria 1, 98123 Messina, Italy;
| | - Antonino Lo Giudice
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, 95124 Catania, Italy; (G.P.); (V.R.); (A.L.G.); (C.T.); (P.C.); (S.B.); (A.B.)
| | - Corrado Toro
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, 95124 Catania, Italy; (G.P.); (V.R.); (A.L.G.); (C.T.); (P.C.); (S.B.); (A.B.)
| | - Paola Campagna
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, 95124 Catania, Italy; (G.P.); (V.R.); (A.L.G.); (C.T.); (P.C.); (S.B.); (A.B.)
| | - Romeo Patini
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Institute of Dentistry and Maxillofacial Surgery, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Correspondence: (R.P.); (G.I.); Tel.: +39-06-3015-4286 (R.P.); +39-09-5743-5359 (G.I.)
| | - Salvatore Bocchieri
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, 95124 Catania, Italy; (G.P.); (V.R.); (A.L.G.); (C.T.); (P.C.); (S.B.); (A.B.)
| | - Alberto Bianchi
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, 95124 Catania, Italy; (G.P.); (V.R.); (A.L.G.); (C.T.); (P.C.); (S.B.); (A.B.)
| | - Gaetano Isola
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, 95124 Catania, Italy; (G.P.); (V.R.); (A.L.G.); (C.T.); (P.C.); (S.B.); (A.B.)
- Correspondence: (R.P.); (G.I.); Tel.: +39-06-3015-4286 (R.P.); +39-09-5743-5359 (G.I.)
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Watkins AR, Reesink HL. Lubricin in experimental and naturally occurring osteoarthritis: a systematic review. Osteoarthritis Cartilage 2020; 28:1303-1315. [PMID: 32504786 PMCID: PMC8043104 DOI: 10.1016/j.joca.2020.05.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/28/2020] [Accepted: 05/13/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Lubricin is increasingly being evaluated as an outcome measure in studies investigating post-traumatic and naturally occurring osteoarthritis. However, there are discrepancies in results, making it unclear as to whether lubricin is increased, decreased or unchanged in osteoarthritis. The purpose of this study was to review all papers that measured lubricin in joint injury or osteoarthritis in order to draw conclusions about lubricin regulation in joint disease. DESIGN A systematic search of the Pubmed, Web of Knowledge, and EBSCOhost databases for papers was performed. Inclusion criteria were in vivo studies that measured lubricin in humans or animals with joint injury, that investigated lubricin supplementation in osteoarthritic joints, or that described the phenotype of a lubricin knock-out model. A methodological assessment was performed. RESULTS Sixty-two studies were included, of which thirty-eight measured endogenous lubricin in joint injury or osteoarthritis. Nineteen papers found an increase or no change in lubricin and nineteen reported a decrease. Papers that reported a decrease in lubricin were cited four times more often than those that reported an increase. Fifteen papers described lubricin supplementation, and all reported a beneficial effect. Eleven papers described lubricin knock-out models. CONCLUSIONS The human literature reveals similar distributions of papers reporting increased lubricin as compared to decreased lubricin in osteoarthritis. The animal literature is dominated by reports of decreased lubricin in the rat anterior cruciate ligament transection model, whereas studies in large animal models report increased lubricin. Intra-articular lubricin supplementation may be beneficial regardless of whether lubricin increases or decreases in OA.
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Affiliation(s)
- A R Watkins
- Department of Clinical Sciences, University of Pennsylvania School of Veterinary Medicine, New Bolton Center, Kennett Square, PA, USA
| | - H L Reesink
- Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA.
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Isola G. The Impact of Diet, Nutrition and Nutraceuticals on Oral and Periodontal Health. Nutrients 2020; 12:nu12092724. [PMID: 32899964 PMCID: PMC7551041 DOI: 10.3390/nu12092724] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 08/28/2020] [Indexed: 02/07/2023] Open
Abstract
Oral and periodontal diseases can determine severe functional, phonatory and aesthetic impairments and are the main cause of adult tooth loss. They are caused by some specific bacteria that provoke an intense local inflammatory response and affect-with particular gravity-susceptible subjects, because of reasons related to genetics and lifestyles (e.g., smoking and home oral hygiene habits). They are more frequent in the disadvantaged segments of society and, in particular, in subjects who have difficulty accessing preventive services and dental care. Some systemic diseases, such as uncontrolled diabetes, can increase their risk of development and progression. Recently, in addition to the obvious considerations of severe alterations and impairments for oral health and well-being, it has been noted that periodontitis can cause changes in the whole organism. Numerous clinical and experimental studies have highlighted the presence of a strong association between periodontitis and some systemic diseases, in particular, cardiovascular diseases, diabetes, lung diseases and complications of pregnancy. The purpose of this editorial is to provide a current and thoughtful perspective on the relationship of diet and natural agents on oral, periodontal diseases, and chewing disorder preventions which may reflect good systemic conditions and related quality of life or to analyze indirect effects through the contribution of diet and nutrition to systemic health in order to obtain a modern diagnostic-therapeutic approach.
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Affiliation(s)
- Gaetano Isola
- Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, Via S. Sofia 78, 95124 Catania, Italy
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12
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Caltabiano R, Condorelli D, Panza S, Boitani C, Musso N, Ježek D, Memeo L, Colarossi L, Rago V, Mularoni V, Spadola S, Castiglione R, Santoro M, Aquila S, D'Agata R. Glucagon-like peptide-1 receptor is expressed in human and rodent testis. Andrology 2020; 8:1935-1945. [PMID: 33460247 DOI: 10.1111/andr.12871] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 01/25/2023]
Abstract
BACKGROUND The incretin hormone glucagon-like peptide-l (GLP-1) is an important regulator of post-prandial insulin secretion, acting through a G protein-coupled cell surface receptor (GLP-1R). In addition to its expression in pancreatic β-cells, several studies suggested that GLP-1R is located in extra-pancreatic tissues. OBJECTIVES In this study, we examined for the first time the testicular distribution of the GLP-1R, both in normal human and neoplastic testicular tissues as well as in rodent testis and rodent testicular cell lines. METHODS AND METHODS The GLP-1R distribution in testicular section has been evaluated by immunohistochemistry, the specificity of IHC was validated by demonstrating a positive staining for GLP-1RmRNA by RISH technology. While GLP-1R expression in terms of protein was detected by western blot analysis, Moreover, mRNA levels were determined in human testis, in rodent Leydig, and Sertoli cell lines. RESULTS Using immunohistochemistrya specific staining for GLP-1R was detected in Leydig cells. The specificity of IHC was validated by demonstrating a positive staining for GLP-1RmRNA only in these cell types. Species differences in the GLP-1R expression between humans and rodents were observed. Interestingly, a decreased expression of the receptor in rodent tumor Leydig cell line and an absence in human Leydig tumor samples was detected. DISCUSSION It may be hypothesized that GLP-1R acts like an oncosuppressor in Leydig tumors. A role in regulation of hormone secretion by GLP-1 has been shown in other endocrine cells, therefore we hypothesized that GLP-1R is able to modulate somehow the Leydig cell function. CONCLUSION In our findings, a careful evaluation of human testicular tissues and rodent testis revealed Leydig cells as a potential target for GLP-1. Collectively, an effect of GLP-1R in Leydig cell function may be presumed although future studies are needed to ascertain the GLP-1R's role both in normal and tumor Leydig cells.
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Affiliation(s)
- Rosario Caltabiano
- Department "G.F. Ingrassia"- Section of Anatomical Pathology, University of Catania, Catania, Italy
| | - Daniele Condorelli
- Department of Biomedical and Biotechnological Sciences, Section of medical Biochemistry, University of Catania, Catania, Italy
| | - Salvatore Panza
- Centro Sanitario, University of Calabria, Arcavacata di Rende, Cosenza, Italy.,Department of Pharmacy and Sciences of Health and Nutrition, University of Calabria, Cosenza, Italy
| | - Carla Boitani
- Department of Anatomy, Histology, Forensic Medicine, Orthopedics, University of Rome "La Sapienza", Rome, Italy
| | - Nicolò Musso
- Department of Biomedical and Biotechnological Sciences, Section of medical Biochemistry, University of Catania, Catania, Italy
| | - Davor Ježek
- Department of Histology and Embryology, Centre of Excellence for Reproductive and Regenerative Medicine, Zagreb, Croatia
| | - Lorenzo Memeo
- Division of Pathology, Mediterranean Institute of Oncology, Catania, Italy
| | - Lorenzo Colarossi
- Division of Pathology, Mediterranean Institute of Oncology, Catania, Italy
| | - Vittoria Rago
- Department of Pharmacy and Sciences of Health and Nutrition, University of Calabria, Cosenza, Italy
| | - Valentina Mularoni
- Department of Anatomy, Histology, Forensic Medicine, Orthopedics, University of Rome "La Sapienza", Rome, Italy
| | - Saveria Spadola
- Department "G.F. Ingrassia"- Section of Anatomical Pathology, University of Catania, Catania, Italy
| | - Roberto Castiglione
- Department of Experimental and Clinical Medicine, University of Catania, Catania, Italy
| | - Marta Santoro
- Centro Sanitario, University of Calabria, Arcavacata di Rende, Cosenza, Italy.,Department of Pharmacy and Sciences of Health and Nutrition, University of Calabria, Cosenza, Italy
| | - Saveria Aquila
- Centro Sanitario, University of Calabria, Arcavacata di Rende, Cosenza, Italy.,Department of Pharmacy and Sciences of Health and Nutrition, University of Calabria, Cosenza, Italy
| | - Rosario D'Agata
- Department of Experimental and Clinical Medicine, University of Catania, Catania, Italy
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13
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Fichera G, Polizzi A, Scapellato S, Palazzo G, Indelicato F. Craniomandibular Disorders in Pregnant Women: An Epidemiological Survey. J Funct Morphol Kinesiol 2020; 5:E36. [PMID: 33467252 PMCID: PMC7739292 DOI: 10.3390/jfmk5020036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 05/28/2020] [Accepted: 06/01/2020] [Indexed: 11/16/2022] Open
Abstract
Temporomandibular joint (TMJ) disorder has been reported to be 1.5 to two times more common in women than men. Such a gender-based difference could be attributed to behavioral, hormonal, anatomical, and psychological characteristics. Physiological hormonal differences between genders could be one of the possible explanations for the higher incidence of temporomandibular disorder (TMD) in women. As the plasma level of certain female hormones increases during gestation, it could be assumed that there is a higher prevalence of dysfunctional signs and symptoms in pregnant women. We performed an epidemiological survey based on screening for TMD in a group of 108 pregnant women and found that 72% of young women reported significant signs of TMJ disorders, 9% of the young women reported mild signs of TMJ disorders, and 19% of the included subjects reported no signs or symptoms of TMD. The presence of estrogen receptors in the temporomandibular joint of female baboons could be the basis of an explanation for the increased prevalence of dysfunction in young women reported in the literature and the high feedback we have seen of joint noises in pregnant women. On the basis of the present findings, it could be assumed that gestation period could represent a risk factor for craniomandibular dysfunctions.
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Affiliation(s)
- Grazia Fichera
- Department of General Surgery and Surgical-Medical Specialties, University of Catania, 95124 Catania, Italy; (G.F.); (S.S.); (G.P.); (F.I.)
| | - Alessandro Polizzi
- Department of General Surgery and Surgical-Medical Specialties, University of Catania, 95124 Catania, Italy; (G.F.); (S.S.); (G.P.); (F.I.)
| | - Simone Scapellato
- Department of General Surgery and Surgical-Medical Specialties, University of Catania, 95124 Catania, Italy; (G.F.); (S.S.); (G.P.); (F.I.)
- Department of Biomedical, Odontostomatological Sciences and of Morphological and Functional Images, University of Messina, 98125 Messina, Italy
| | - Giuseppe Palazzo
- Department of General Surgery and Surgical-Medical Specialties, University of Catania, 95124 Catania, Italy; (G.F.); (S.S.); (G.P.); (F.I.)
| | - Francesco Indelicato
- Department of General Surgery and Surgical-Medical Specialties, University of Catania, 95124 Catania, Italy; (G.F.); (S.S.); (G.P.); (F.I.)
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14
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Lo Giudice A, Rustico L, Ronsivalle V, Spinuzza P, Polizzi A, Bellocchio AM, Scapellato S, Portelli M, Nucera R. A Full Diagnostic Process for the Orthodontic Treatment Strategy: A Documented Case Report. Dent J (Basel) 2020; 8:dj8020041. [PMID: 32384632 PMCID: PMC7346007 DOI: 10.3390/dj8020041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 04/28/2020] [Accepted: 04/30/2020] [Indexed: 02/08/2023] Open
Abstract
The need for extractions in orthodontic treatment has always been a controversial topic. However, to date there is not a specific clinical guideline that can help the clinicians deciding to plan an extractive or a non-extractive orthodontic treatment. In this respect, clinicians must deal with patients’ occlusal, functional, periodontal and aesthetics characteristics before planning an orthodontic treatment including extraction. Considering the absence of specific guidelines, the choice to extract teeth or not is complicated, particularly in borderline cases. In this case report, we present a borderline case of a patient with the skeletal Class III pattern and significant crowding in both arches that could be treated with or without extraction, illustrating the diagnostic and decision-making processes that were conducted for the orthodontic treatment strategy.
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Affiliation(s)
- Antonino Lo Giudice
- Department of Medical-Surgical Specialties—Section of Orthodontics, School of Dentistry, University of Catania, Policlinico Universitario “V. Emanuele,” Via Santa Sofia 78, 95123 Catania, Italy; (A.L.G.); (V.R.); (A.P.); (S.S.)
| | - Lorenzo Rustico
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Orthodontics, School of Dentistry, University of Messina, Policlinico Universitario “G. Martino,” Via Consolare Valeria, 98123 Messina, Italy; (P.S.); (A.M.B.); (M.P.); (R.N.)
- Correspondence:
| | - Vincenzo Ronsivalle
- Department of Medical-Surgical Specialties—Section of Orthodontics, School of Dentistry, University of Catania, Policlinico Universitario “V. Emanuele,” Via Santa Sofia 78, 95123 Catania, Italy; (A.L.G.); (V.R.); (A.P.); (S.S.)
| | - Paola Spinuzza
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Orthodontics, School of Dentistry, University of Messina, Policlinico Universitario “G. Martino,” Via Consolare Valeria, 98123 Messina, Italy; (P.S.); (A.M.B.); (M.P.); (R.N.)
| | - Alessandro Polizzi
- Department of Medical-Surgical Specialties—Section of Orthodontics, School of Dentistry, University of Catania, Policlinico Universitario “V. Emanuele,” Via Santa Sofia 78, 95123 Catania, Italy; (A.L.G.); (V.R.); (A.P.); (S.S.)
| | - Angela Mirea Bellocchio
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Orthodontics, School of Dentistry, University of Messina, Policlinico Universitario “G. Martino,” Via Consolare Valeria, 98123 Messina, Italy; (P.S.); (A.M.B.); (M.P.); (R.N.)
| | - Simone Scapellato
- Department of Medical-Surgical Specialties—Section of Orthodontics, School of Dentistry, University of Catania, Policlinico Universitario “V. Emanuele,” Via Santa Sofia 78, 95123 Catania, Italy; (A.L.G.); (V.R.); (A.P.); (S.S.)
| | - Marco Portelli
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Orthodontics, School of Dentistry, University of Messina, Policlinico Universitario “G. Martino,” Via Consolare Valeria, 98123 Messina, Italy; (P.S.); (A.M.B.); (M.P.); (R.N.)
| | - Riccardo Nucera
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, Section of Orthodontics, School of Dentistry, University of Messina, Policlinico Universitario “G. Martino,” Via Consolare Valeria, 98123 Messina, Italy; (P.S.); (A.M.B.); (M.P.); (R.N.)
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15
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Ravalli S, Szychlinska MA, Lauretta G, Di Rosa M, Musumeci G. Investigating lubricin and known cartilage-based biomarkers of osteoarthritis. Expert Rev Mol Diagn 2020; 20:443-452. [PMID: 32085680 DOI: 10.1080/14737159.2020.1733978] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Introduction: Osteoarthritis (OA) is a degenerative disease which primarily affects hyaline cartilage, leading to pain, stiffness and loss of mobility of the entire articulation. Diagnosis is commonly based on symptoms and radiographs, but there is a growing interest in detecting novel biomarkers, in serum, urine and synovial fluid, which can be predictors of disease onset and progression.Areas covered: This review provides an overview of the main biomarkers currently used in OA clinical practice, with a focus on lubricin, a surface glycoprotein secreted in the synovial fluid that lubricates the cartilage and reduces the coefficient of friction within the joint. Key findings of the last years are presented throughout the article.Expert opinion: Analysis of biomarkers might suggest personalized protocols of treatment, guide the classification of OA phenotypes, contribute to precision medicine, avoid further unnecessary exams, facilitate drug discovery or refine treatment guidelines. For all these reasons, the investigation of novel cartilage-based biomarker of osteoarthritis needs to be promoted and improved.
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Affiliation(s)
- Silvia Ravalli
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Via Santa Sofia, Italy
| | - Marta Anna Szychlinska
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Via Santa Sofia, Italy
| | - Giovanni Lauretta
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Via Santa Sofia, Italy
| | - Michelino Di Rosa
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Via Santa Sofia, Italy
| | - Giuseppe Musumeci
- Department of Biomedical and Biotechnological Sciences, Anatomy, Histology and Movement Sciences Section, School of Medicine, University of Catania, Catania, Via Santa Sofia, Italy.,Research Center on Motor Activities (CRAM), University of Catania, Catania, Via Santa Sofia, Italy.,Department of Biology, Sbarro Institute for Cancer Research and Molecular Medicine, College of Science and Technology, Temple University, Philadelphia, PA, USA
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16
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Zou LX, Yu L, Zhao XM, Liu J, Lu HG, Liu GW, Guo WC. MiR-375 Mediates Chondrocyte Metabolism and Oxidative Stress in Osteoarthritis Mouse Models through the JAK2/STAT3 Signaling Pathway. Cells Tissues Organs 2020; 208:13-24. [PMID: 32045921 DOI: 10.1159/000504959] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 11/24/2019] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The aim of this work was to determine the effect of miR-375 on chondrocyte metabolism and oxidative stress in osteoarthritis (OA) mouse models through the JAK2/STAT3 signaling pathway. METHODS Chondrocytes were divided into control, IL-1β, IL-1β + miR-375 mimic, IL-1β + miR-375 inhibitor, IL-1β + miR-NC (negative control), and IL-1β + miR-375 inhibitor + siJAK2 groups. The chondrocyte proliferation was determined by MTT assay, the superoxide dismutase (SOD) and malondialdehyde (MDA) levels by corresponding kits, and the chondrocyte apoptosis by TUNEL staining. Furthermore, OA mouse models were divided into Sham, OA + miR-NC, and OA + miRNA-375 antagomir groups. The pathological changes were observed, and the expressions of miR-375 and the JAK2/STAT3 pathway were determined by qRT-PCR and Western blotting, respectively. RESULTS IL-1β-induced chondrocytes had significant increases in miR-375 and MDA, with decreased proliferation and SOD levels, as compared to the control group. Meanwhile, they also exhibited elevated apoptosis, with upregulations of ADAMTS-5 and MMP-13 and downregulations of COL2A1 and ACAN, as well as decreased p-JAK2/JAK2, p-STAT3/STAT3, and Bcl-2/Bax. However, these changes were significantly improved after transfection with miR-375 inhibitor, but transfection with miR-375 mimic resulted in severer exacerbation. Notably, the improvement of miR-375 inhibitor could be abolished by transfection with siJAK2. Furthermore, miR-375 antagomir significantly alleviated OA progression in OA mice in vivo. CONCLUSION MiR-375 suppression enhanced the ability of chondrocyte to antagonize the oxidative stress and maintained the homeostasis of extracellular matrix metabolism to protect chondrocytes from OA via activation of the JAK2/STAT3 pathway, indicating that miR-375 is a potential molecular target for OA treatment.
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Affiliation(s)
- Li-Xue Zou
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China
| | - Ling Yu
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China
| | - Xun-Ming Zhao
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China
| | - Jun Liu
- Department of Orthopedics, Jingzhou Central Hospital, Jingzhou City, China
| | - Hou-Gen Lu
- Department of Orthopedics, Jingzhou Central Hospital, Jingzhou City, China
| | - Gai-Wei Liu
- Department of Orthopedics, Jingzhou Central Hospital, Jingzhou City, China
| | - Wei-Chun Guo
- Department of Orthopedics, Renmin Hospital of Wuhan University, Wuhan, China,
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17
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Chen Z, Mai Z, Tu S, Lu H, Chen L, Ai H. Expression of lubricin in rat posterior mandibular condylar cartilage following functional mandibular forward repositioning. J Orofac Orthop 2019; 80:128-135. [PMID: 30953086 DOI: 10.1007/s00056-019-00173-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 02/20/2019] [Indexed: 11/30/2022]
Abstract
PURPOSE The aim of the present study was to investigate the effects of mandibular forward repositioning on expression of lubricin in rat posterior condylar cartilage. METHODS In total, fifty 5‑week-old female Sprague Dawley rats were divided randomly into experimental groups and control groups. The animals in the experimental groups were fitted with modified acrylic inclined planes to advance the mandible, whereas rats in the normal control groups were left intact. Rats were sacrificed on days 3, 7, 14, 21, and 30, and temporomandibular joint (TMJ) samples were collected. The expression of lubricin of the posterior mandibular condylar cartilage was evaluated by immunohistochemistry. RESULTS In the control groups, higher expression of lubricin was observed in the proliferative zone of the posterior mandibular condylar cartilage compared with the hypertrophic zone during the experimental period. Compared with the control group, the positive signals for lubricin of the posterior mandibular condylar cartilage in the experimental animals were significantly higher on days 7, 14, and 21; however, no statistical difference was found on day 3 or 30. CONCLUSIONS Data analyses suggest that the bite jumping appliance temporarily enhanced lubricin expression, providing a good mechanical environment for the physiologic growth of the condyle and mandible, and contributes to TMJ remodeling by the regulation of condylar chondrocyte proliferation.
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Affiliation(s)
- Zheng Chen
- Department of Stomatology, The Third Affiliated Hospital, Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, China
| | - Zhihui Mai
- Department of Stomatology, The Third Affiliated Hospital, Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, China
| | - Shaoqin Tu
- Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology and Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Hongfei Lu
- Department of Stomatology, The Third Affiliated Hospital, Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, China
| | - Lin Chen
- Department of Stomatology, The Third Affiliated Hospital, Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, China
| | - Hong Ai
- Department of Stomatology, The Third Affiliated Hospital, Sun Yat-sen University, No. 600 Tianhe Road, Guangzhou, China.
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18
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Immunohistochemical Expression of ABCB5 as a Potential Prognostic Factor in Uveal Melanoma. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9071316] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Uveal melanoma represents the most common primary intraocular malignancy in adults; it may arise in any part of the uveal tract, with choroid and ciliary bodies being the most frequent sites of disease. In the present paper we studied ABCB5 expression levels in patients affected by uveal melanoma, both with and without metastasis, in order to evaluate if ABCB5 is associated with a higher risk of metastatic disease and can be used as a poor prognostic factor in uveal melanoma. The target population consisted of 23 patients affected by uveal melanoma with metastasis and 32 without metastatic disease. A high expression of ABCB5 was seen in patients with metastasis (14/23, 60.9%), compared to that observed in patients without metastasis (13/32, 40.6%). In conclusion, we found that ABCB5 expression levels were correlated with faster metastatic progression and poorer prognosis, indicating their role as a prognostic factor in uveal melanoma.
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19
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Kobler JB, Tynan MA, Zeitels SM, Liss AS, Gianatasio MT, Morin AA, Schmidt TA. Lubricin/proteoglycan 4 detected in vocal folds of humans and five other mammals. Laryngoscope 2019; 129:E229-E237. [PMID: 30613972 DOI: 10.1002/lary.27783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2018] [Indexed: 12/28/2022]
Abstract
OBJECTIVES/HYPOTHESIS Lubricin/proteoglycan-4 (PRG4) lubricates connective tissues such as joints and tendon sheaths, enabling them to better withstand shearing and frictional forces during motion. We wondered whether PRG4 might play a role in phonation, as normal vocal folds withstand repetitive, high-velocity deformations remarkably well. As a first step, we tested whether PRG4 is expressed in vocal folds. STUDY DESIGN Laboratory study. METHODS Anatomical and molecular methods were applied to 47 larynges from humans, macaque (Macaca fascicularis), canines, pigs, calves, and rats. Immunohistochemistry (IHC), Western blot, and quantitative real-time polymerase chain reaction (qRT-PCR) methods were used to test for the presence of PRG4. RESULTS In all species, the true vocal fold lamina propria (TVF-LP) was positive for PRG4 by IHC, whereas immunoreactivity of the false vocal fold was weak or absent, depending on the species. Human TVF-LP was strongly stained across all layers. Immunoreactivity was seen variably on the vocal fold surface and within the vocal fold epithelium, in the conus elasticus and thyroglottic ligament, and at the tip of vocal process. Western blots of four humans and six pigs demonstrated immunoreactivity at appropriate molecular weight. qRT-PCR of pig tissues confirmed PRG4 mRNA expression, which was highest in the TVF-LP. CONCLUSIONS PRG4 was found in phonatory tissues of six mammals. We suggest it might act as a lubricant within the lamina propria and possibly on the vocal fold surface, limiting phonation-related damage to vocal fold extracellular matrix and epithelium, and enhancing vocal efficiency by reducing internal friction (viscosity) within the vocal fold. LEVEL OF EVIDENCE NA Laryngoscope, 129:E229-E237, 2019.
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Affiliation(s)
- James B Kobler
- Center for Laryngeal Surgery and Voice Rehabilitation, Massachusetts General Hospital, Boston, Massachusetts, U.S.A.,Department of Surgery, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Monica A Tynan
- Center for Laryngeal Surgery and Voice Rehabilitation, Massachusetts General Hospital, Boston, Massachusetts, U.S.A
| | - Steven M Zeitels
- Center for Laryngeal Surgery and Voice Rehabilitation, Massachusetts General Hospital, Boston, Massachusetts, U.S.A.,Department of Surgery, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Andrew S Liss
- Center for Laryngeal Surgery and Voice Rehabilitation, Massachusetts General Hospital, Boston, Massachusetts, U.S.A.,Department of Surgery, Harvard Medical School, Boston, Massachusetts, U.S.A
| | - Maria T Gianatasio
- Cancer Center Histopathology Core, Massachusetts General Hospital, Boston, Massachusetts, U.S.A
| | - Alyssa A Morin
- Biomedical Engineering Department, University of Connecticut Health Center, Farmington, Connecticut, U.S.A
| | - Tannin A Schmidt
- Biomedical Engineering Department, University of Connecticut Health Center, Farmington, Connecticut, U.S.A
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20
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Trovato FM, Castrogiovanni P, Szychlinska MA, Purrello F, Musumeci G. Impact of Western and Mediterranean Diets and Vitamin D on Muscle Fibers of Sedentary Rats. Nutrients 2018; 10:nu10020231. [PMID: 29462978 PMCID: PMC5852807 DOI: 10.3390/nu10020231] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/28/2018] [Accepted: 02/14/2018] [Indexed: 12/13/2022] Open
Abstract
Background: The metabolic syndrome is associated with sarcopenia. Decreased serum levels of Vitamin D (VitD) and insulin-like growth factor (IGF)-1 and their mutual relationship were also reported. We aimed to evaluate whether different dietary profiles, containing or not VitD, may exert different effects on muscle molecular morphology. Methods: Twenty-eight male rats were fed for 10 weeks in order to detect early defects induced by different dietary regimens: regular diet (R); regular diet with vitamin D supplementation (R-DS) and regular diet with vitamin D restriction (R-DR); high-fat butter-based diets (HFB-DS and HFB-DR) with 41% energy from fat; high-fat extra-virgin olive oil-based diets (HFEVO-DS and HFEVO-DR) with 41% energy from fat. IL-1β, insulin-like growth factor (IGF)1, Dickkopf-1 (DKK-1), and VitD-receptor (VDR) expressions were evaluated by immunohistochemistry. Muscle fiber perimeter was measured by histology and morphometric analysis. Results: The muscle fibers of the HEVO-DS rats were hypertrophic, comparable to those of the R-DS rats. An inverse correlation existed between the dietary fat content and the perimeter of the muscle fibers (p < 0.01). In the HFB-DR rats, the muscle fibers appeared hypotrophic with an increase of IL-1β and a dramatic decrease of IGF-1 expression. Conclusions: High-fat western diet could impair muscle metabolism and lay the ground for subsequent muscle damage. VitD associated with a Mediterranean diet showed trophic action on the muscle fibers.
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MESH Headings
- Animal Nutritional Physiological Phenomena
- Animals
- Diet, High-Fat/adverse effects
- Diet, Mediterranean
- Diet, Western/adverse effects
- Hypertrophy
- Insulin-Like Growth Factor I/metabolism
- Intercellular Signaling Peptides and Proteins/metabolism
- Interleukin-1beta/metabolism
- Male
- Models, Animal
- Muscle Fibers, Skeletal/drug effects
- Muscle Fibers, Skeletal/metabolism
- Muscle Fibers, Skeletal/pathology
- Nutritional Status
- Rats, Sprague-Dawley
- Receptors, Calcitriol/agonists
- Receptors, Calcitriol/metabolism
- Sedentary Behavior
- Time Factors
- Vitamin D/pharmacology
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Affiliation(s)
- Francesca Maria Trovato
- Department of Clinical and Experimental Medicine, University of Catania, Via S. Sofia, 78, 95123, Catania, Italy.
| | - Paola Castrogiovanni
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia, 87, 95123, Catania, Italy.
| | - Marta Anna Szychlinska
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia, 87, 95123, Catania, Italy.
| | - Francesco Purrello
- Department of Clinical and Experimental Medicine, University of Catania, Via S. Sofia, 78, 95123, Catania, Italy.
| | - Giuseppe Musumeci
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia, 87, 95123, Catania, Italy.
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21
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Physical activity and Mediterranean diet based on olive tree phenolic compounds from two different geographical areas have protective effects on early osteoarthritis, muscle atrophy and hepatic steatosis. Eur J Nutr 2018; 58:565-581. [PMID: 29450729 DOI: 10.1007/s00394-018-1632-2] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 02/06/2018] [Indexed: 12/21/2022]
Abstract
PURPOSE Osteoarthitis (OA) leads to progressive loss of articular cartilage, pain and joint disability. An acute injury constitutes an important risk factor for early OA, determining an inflammatory process responsible of cartilage degeneration and muscle atrophy, due to the joint pain and immobility. The study aims to assess the effects of conjugation of physical activity and diet enriched by olive tree compounds [extra virgin olive oil (EVOO) and olive leaf extract (OLE)], on the musculoskeletal system in OA rat model. METHODS OA was induced by anterior cruciate ligament transection and confirmed by Mankin and OARSI scores. Rats were subjected to physical activity on treadmill 5 days a week for 10 min daily and fed with experimental diets (standard diet enriched with Sicilian EVOO, Tunisian EVOO and Tunisian EVOO-OLE) for 12 weeks. Immunohistochemistry was used to evaluate IL-6 and lubricin expression in cartilage tissue and ELISA was used to quantify these proteins in serum at different time points. Histology and histomorphometry analysis were done to valuate liver steatosis, muscle atrophy and cartilage pathological changes. RESULTS Compared to the OA group, the experimental groups showed general increased lubricin and decreased IL-6 expression, significant muscle hypertrophy and no signs of liver steatosis, suggesting the beneficial effects of physical activity coupled with EVOO-enriched diets on rat articular cartilage. Interestingly, the best result was shown for Sicilian EVOO-enriched diet. CONCLUSION In conclusion, the conjugation of physical activity and EVOO-enriched diet determines a significant articular cartilage recovery process in early OA.
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22
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Pu H, Hua Y. Hydrogen sulfide regulates bone remodeling and promotes orthodontic tooth movement. Mol Med Rep 2017; 16:9415-9422. [PMID: 29039565 PMCID: PMC5779999 DOI: 10.3892/mmr.2017.7813] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 09/01/2017] [Indexed: 12/20/2022] Open
Abstract
Hydrogen sulfide (H2S) is a gas signaling molecule that has multiple influences on physiological and pathological processes in the mammalian body, including vasodilation, neurotransmission, inflammation, hypoxia sensing and bone remodeling. Our previous studies suggested that H2S might be involved in the periodontal tissue remodeling during the orthodontic tooth movement (OTM) via increasing periodontal ligament cell differentiation, tissue mineralization, bone formation and collagen synthesis. The aim of the present study was to investigate the effects of H2S on alveolar bone remodeling that is associated with tooth movement. Experiments were performed in an OTM mouse model. Sodium hydrosulfide (NaHS), which is a donor of H2S and DL-propargylglycine (PAG) and a cystathionine-γ-lyase (CSE) inhibitor, which could also decrease H2S expression, were administered intraperitoneally and respectively. A total of 60 male C57BL6/J mice were divided into 4 groups; Control, NaHS, PAG and combination (PAG+NaHS). The rate of OTM and the bone mineral density (BMD) of alveolar bone were scanned and measured by micro-computed tomography (micro-CT). The number of osteoclasts and expression of the tumor necrosis factor ligand superfamily member-11 (RANKL), alkaline phosphatase (ALP), osteocalcin (OCN) and osteoprotegerin (OPG) in alveolar bone were accessed to evaluate the osteoclastic activity and osteogenesis with histochemistry of tartrate-resistant acid phosphatase staining, immunohistochemistry and reverse transcription-quantitative polymerase chain reaction. In the alveolar bone, NaHS increased the OTM and decreased the BMD, respectively. PAG significantly decrease OTM and increased the BMD. NaHS combined with PAG rescued the PAG-induced changes in the OTM and the BMD. Additionally, the number of osteoclasts, the expression of RANKL, ALP, OCN and the ratio of RANKL/OPG were significantly up-regulated in the NaHS group. In contrast, PAG down-regulated the number of osteoclasts, the expression of RANKL, ALP, OCN and the ratio of RANKL/OPG. These findings suggested that H2S might facilitate the OTM by enhancing alveolar bone remodeling as a result of an increased osteoclastic activity and osteogenesis.
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Affiliation(s)
- Haiya Pu
- Department of Orthodontics, School of Dentistry, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200233, P.R. China
| | - Yongmei Hua
- Department of Orthodontics, School of Dentistry, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai 200233, P.R. China
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Szychlinska MA, Castrogiovanni P, Nsir H, Di Rosa M, Guglielmino C, Parenti R, Calabrese G, Pricoco E, Salvatorelli L, Magro G, Imbesi R, Mobasheri A, Musumeci G. Engineered cartilage regeneration from adipose tissue derived-mesenchymal stem cells: A morphomolecular study on osteoblast, chondrocyte and apoptosis evaluation. Exp Cell Res 2017; 357:222-235. [PMID: 28529106 DOI: 10.1016/j.yexcr.2017.05.018] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 04/23/2017] [Accepted: 05/18/2017] [Indexed: 02/08/2023]
Abstract
The poor self-repair capacity of cartilage tissue in degenerative conditions, such as osteoarthritis (OA), has prompted the development of a variety of therapeutic approaches, such as cellular therapies and tissue engineering based on the use of mesenchymal stem cells (MSCs). The aim of this study is to demonstrate, for the first time, that the chondrocytes differentiated from rat adipose tissue derived-MSCs (AMSCs), are able to constitute a morphologically and biochemically healthy hyaline cartilage after 6 weeks of culture on a Collagen Cell Carrier (CCC) scaffold. In this study we evaluated the expression of some osteoblasts (Runt-related transcription factor 2 (RUNX2) and osteocalcin), chondrocytes (collagen I, II and lubricin) and apoptosis (caspase-3) biomarkers in undifferentiated AMSCs, differentiated AMSCs in chondrocytes cultured in monolayer and AMSCs-derived chondrocytes seeded on CCC scaffolds, by different techniques such as immunohistochemistry, ELISA, Western blot and gene expression analyses. Our results showed the increased expression of collagen II and lubricin in AMSCs-derived chondrocytes cultured on CCC scaffolds, whereas the expression of collagen I, RUNX2, osteocalcin and caspase-3 resulted decreased, when compared to the controls. In conclusion, this innovative basic study could be a possible key for future therapeutic strategies for articular cartilage restoration through the use of CCC scaffolds, to reduce the morbidity from acute cartilage injuries and degenerative joint diseases.
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Affiliation(s)
- Marta Anna Szychlinska
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Catania, Italy
| | - Paola Castrogiovanni
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Catania, Italy
| | - Houda Nsir
- Biotechnology Laboratory of Olive Tree, Centre of Biotechnology of Borj Cedreya, University of Carthage, Tunisia
| | - Michelino Di Rosa
- Department of Biomedical and Biotechnological Sciences, Pathology Section, School of Medicine, University of Catania, Catania, Italy
| | - Claudia Guglielmino
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Catania, Italy
| | - Rosalba Parenti
- Department of Biomedical and Biotechnological Sciences, Physiology Section, School of Medicine, University of Catania, Catania, Italy
| | - Giovanna Calabrese
- Department of Biomedical and Biotechnological Sciences, Physiology Section, School of Medicine, University of Catania, Catania, Italy
| | - Elisabetta Pricoco
- Department of Medical and Surgical Sciences and Advanced Technologies, Anatomic Pathology Section, School of Medicine, University of Catania, Catania, Italy
| | - Lucia Salvatorelli
- Department of Medical and Surgical Sciences and Advanced Technologies, Anatomic Pathology Section, School of Medicine, University of Catania, Catania, Italy
| | - Gaetano Magro
- Department of Medical and Surgical Sciences and Advanced Technologies, Anatomic Pathology Section, School of Medicine, University of Catania, Catania, Italy
| | - Rosa Imbesi
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Catania, Italy
| | - Ali Mobasheri
- The D-BOARD European Consortium for Biomarker Discovery, The APPROACH Innovative Medicines Initiative (IMI) Consortium, School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Duke of Kent Building, Guildford GU2 7XH, Surrey, United Kingdom; Center of Excellence in Genomic Medicine Research (CEGMR), King Fahd Medical Research Center (KFMRC), King AbdulAziz University, Jeddah 21589, Saudi Arabia; Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Arthritis Research UK Pain Centre, Medical Research Council and Arthritis Research UK Centre for Musculoskeletal Ageing Research, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, United Kingdom
| | - Giuseppe Musumeci
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Catania, Italy; Department of Health, Institut des Etudes Universitaries, UniPoliSI, Veyras, Switzerland.
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Caltabiano R, Puzzo L, Barresi V, Ieni A, Loreto C, Musumeci G, Castrogiovanni P, Ragusa M, Foti P, Russo A, Longo A, Reibaldi M. ADAM 10 expression in primary uveal melanoma as prognostic factor for risk of metastasis. Pathol Res Pract 2016; 212:980-987. [PMID: 27546281 DOI: 10.1016/j.prp.2016.08.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Revised: 07/29/2016] [Accepted: 08/04/2016] [Indexed: 01/09/2023]
Abstract
Uveal melanoma is the most frequent primary intraocular neoplasm in adults. Although malignant melanoma may be located at any point in the uveal tract, the choroid and ciliary body are more frequent locations than the iris. In the present study, we examined ADAM10 expression levels in primary uveal melanoma both with and without metastasis, and we evaluated their association with other high risk characteristics for metastasis in order to assess if ADAM10 can be used to predict metastasis. This study included a total of 52 patients, 23 men and 29 women, with uveal melanoma. A significantly high expression of ADAM-10 was seen in patients with metastasis (11/13, 84.6%), but not in patients without metastasis (15/39, 38.5%). In conclusion we found that ADAM10 expression was associated with a more rapid metastatic progression confirming its role in uveal melanoma metastasis.
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Affiliation(s)
- Rosario Caltabiano
- Department G.F. Ingrassia, Section of Anatomic Pathology, University of Catania, Italy.
| | - Lidia Puzzo
- Department G.F. Ingrassia, Section of Anatomic Pathology, University of Catania, Italy
| | - Valeria Barresi
- Department of Human Pathology, Section of Pathological Anatomy, University of Messina, Italy
| | - Antonio Ieni
- Department of Human Pathology, Section of Pathological Anatomy, University of Messina, Italy
| | - Carla Loreto
- Department of Bio-medical Sciences, Division of Anatomy and Histology, University of Catania, Italy
| | - Giuseppe Musumeci
- Department of Bio-medical Sciences, Division of Anatomy and Histology, University of Catania, Italy
| | - Paola Castrogiovanni
- Department of Bio-medical Sciences, Division of Anatomy and Histology, University of Catania, Italy
| | - Marco Ragusa
- Department of Bio-medical Sciences, Section of Molecular Biomedicine, University of Catania, Italy
| | - Pietro Foti
- Radiodiagnostic and Radiotherapy Unit, University Hospital "Policlinico-Vittorio Emanuele", Italy
| | - Andrea Russo
- Department of Ophthalmology, University of Catania, Catania, Italy
| | - Antonio Longo
- Department of Ophthalmology, University of Catania, Catania, Italy
| | - Michele Reibaldi
- Department of Ophthalmology, University of Catania, Catania, Italy
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Szychlinska MA, Leonardi R, Al-Qahtani M, Mobasheri A, Musumeci G. Altered joint tribology in osteoarthritis: Reduced lubricin synthesis due to the inflammatory process. New horizons for therapeutic approaches. Ann Phys Rehabil Med 2016; 59:149-156. [PMID: 27118399 DOI: 10.1016/j.rehab.2016.03.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 02/16/2016] [Accepted: 03/09/2016] [Indexed: 01/15/2023]
Abstract
Osteoarthritis (OA) is the most common form of joint disease. This review aimed to consolidate the current evidence that implicates the inflammatory process in the attenuation of synovial lubrication and joint tissue homeostasis in OA. Moreover, with these findings, we propose some evidence for novel therapeutic strategies for preventing and/or treating this complex disorder. The studies reviewed support that inflammatory mediators participate in the onset and progression of OA after joint injury. The flow of pro-inflammatory cytokines following an acute injury seems to be directly associated with altered lubricating ability in the joint tissue. The latter is associated with reduced level of lubricin, one of the major joint lubricants. Future research should focus on the development of new therapies that attenuate the inflammatory process and restore lubricin synthesis and function. This approach could support joint tribology and synovial lubrication leading to improved joint function and pain relief.
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Affiliation(s)
- M A Szychlinska
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia 87, 95123 Catania, Italy
| | - R Leonardi
- Department of Medical and Surgical Science, Section of Dentistry, University of Catania, Catania, Italy
| | - M Al-Qahtani
- Center of Excellence in Genomic Medicine Research (CEGMR), King Fahd Medical Research Center (KFMRC), King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - A Mobasheri
- Center of Excellence in Genomic Medicine Research (CEGMR), King Fahd Medical Research Center (KFMRC), King Abdulaziz University, Jeddah 21589, Saudi Arabia; The D-BOARD European Consortium for Biomarker Discovery, The APPROACH Innovative Medicines Initiative (IMI) Consortium, School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Duke of Kent Building, Guildford GU2 7XH, Surrey, United Kingdom; Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Arthritis Research UK Pain Centre, Medical Research Council and Arthritis Research UK Centre for Musculoskeletal Ageing Research, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, United Kingdom
| | - G Musumeci
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia 87, 95123 Catania, Italy.
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Co-Expression and Co-Localization of Cartilage Glycoproteins CHI3L1 and Lubricin in Osteoarthritic Cartilage: Morphological, Immunohistochemical and Gene Expression Profiles. Int J Mol Sci 2016; 17:359. [PMID: 26978347 PMCID: PMC4813220 DOI: 10.3390/ijms17030359] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 02/16/2016] [Accepted: 02/22/2016] [Indexed: 12/17/2022] Open
Abstract
Osteoarthritis is the most common human arthritis characterized by degeneration of articular cartilage. Several studies reported that levels of human cartilage glycoprotein chitinase 3-like-1 (CHI3L1) are known as a potential marker for the activation of chondrocytes and the progression of Osteoarthritis (OA), whereas lubricin appears to be chondroprotective. The aim of this study was to investigate the co-expression and co-localization of CHI3L1 and lubricin in normal and osteoarthritic rat articular cartilage to correlate their modified expression to a specific grade of OA. Samples of normal and osteoarthritic rat articular cartilage were analyzed by the Kellgren–Lawrence OA severity scores, the Kraus’ modified Mankin score and the Histopathology Osteoarthritis Research Society International (OARSI) system for histomorphometric evaluations, and through CHI3L1 and lubricin gene expression, immunohistochemistry and double immuno-staining analysis. The immunoexpression and the mRNA levels of lubricin increased in normal cartilage and decreased in OA cartilage (normal vs. OA, p < 0.01). By contrast, the immunoexpression and the mRNA levels of CHI3L1 increased in OA cartilage and decreased in normal cartilage (normal vs. OA, p < 0.01). Our findings are consistent with reports suggesting that these two glycoproteins are functionally associated with the development of OA and in particular with grade 2/3 of OA, suggesting that in the future they could be helpful to stage the severity and progression of the disease.
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Biomarkers of Chondrocyte Apoptosis and Autophagy in Osteoarthritis. Int J Mol Sci 2015; 16:20560-75. [PMID: 26334269 PMCID: PMC4613218 DOI: 10.3390/ijms160920560] [Citation(s) in RCA: 196] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 08/21/2015] [Accepted: 08/25/2015] [Indexed: 01/04/2023] Open
Abstract
Cell death with morphological and molecular features of apoptosis has been detected in osteoarthritic (OA) cartilage, which suggests a key role for chondrocyte death/survival in the pathogenesis of OA. Identification of biomarkers of chondrocyte apoptosis may facilitate the development of novel therapies that may eliminate the cause or, at least, slow down the degenerative processes in OA. The aim of this review was to explore the molecular markers and signals that induce chondrocyte apoptosis in OA. A literature search was conducted in PubMed, Scopus, Web of Science and Google Scholar using the keywords chondrocyte death, apoptosis, osteoarthritis, autophagy and biomarker. Several molecules considered to be markers of chondrocyte apoptosis will be discussed in this brief review. Molecular markers and signalling pathways associated with chondroycte apoptosis may turn out to be therapeutic targets in OA and approaches aimed at neutralizing apoptosis-inducing molecules may at least delay the progression of cartilage degeneration in OA.
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Musumeci G, Aiello FC, Szychlinska MA, Di Rosa M, Castrogiovanni P, Mobasheri A. Osteoarthritis in the XXIst century: risk factors and behaviours that influence disease onset and progression. Int J Mol Sci 2015; 16:6093-112. [PMID: 25785564 PMCID: PMC4394521 DOI: 10.3390/ijms16036093] [Citation(s) in RCA: 205] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/06/2015] [Accepted: 03/12/2015] [Indexed: 12/24/2022] Open
Abstract
Osteoarthritis (OA) is a growing public health problem across the globe, affecting more than half of the over 65 population. In the past, OA was considered a wear and tear disease, leading to the loss of articular cartilage and joint disability. Nowadays, thanks to advancements in molecular biology, OA is believed to be a very complex multifactorial disease. OA is a degenerative disease characterized by “low-grade inflammation” in cartilage and synovium, resulting in the loss of joint structure and progressive deterioration of cartilage. Although the disease can be dependent on genetic and epigenetic factors, sex, ethnicity, and age (cellular senescence, apoptosis and lubricin), it is also associated with obesity and overweight, dietary factors, sedentary lifestyle and sport injuries. The aim of this review is to highlight how certain behaviors, habits and lifestyles may be involved in the onset and progression of OA and to summarize the principal risk factors involved in the development of this complicated joint disorder.
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Affiliation(s)
- Giuseppe Musumeci
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia 87, 95123 Catania, Italy.
| | - Flavia Concetta Aiello
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia 87, 95123 Catania, Italy.
| | - Marta Anna Szychlinska
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia 87, 95123 Catania, Italy.
| | - Michelino Di Rosa
- Department of Biomedical and Biotechnological Sciences, Pathology Section, School of Medicine, University of Catania, 95123 Catania, Italy.
| | - Paola Castrogiovanni
- Department of Biomedical and Biotechnological Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia 87, 95123 Catania, Italy.
| | - Ali Mobasheri
- The D-BOARD European Consortium for Biomarker Discovery, Department of Veterinary Preclinical Sciences, School of Veterinary Medicine, Faculty of Health and Medical Sciences, University of Surrey, Guildford GU2 7XH, UK.
- Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Arthritis Research UK Pain Centre, Medical Research Council and Arthritis Research UK Centre for Musculoskeletal Ageing Research, University of Nottingham, Queen's Medical Centre, Nottingham NG7 2UH, UK.
- Center of Excellence in Genomic Medicine Research (CEGMR), King Fahd Medical Research Center (KFMRC), King AbdulAziz University, Jeddah 21589, Saudi Arabia.
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Biosynthesis of collagen I, II, RUNX2 and lubricin at different time points of chondrogenic differentiation in a 3D in vitro model of human mesenchymal stem cells derived from adipose tissue. Acta Histochem 2014; 116:1407-17. [PMID: 25307495 DOI: 10.1016/j.acthis.2014.09.008] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/11/2014] [Accepted: 09/18/2014] [Indexed: 12/13/2022]
Abstract
The first aim of the study was to identify the most appropriate time for differentiation of adipose tissue derived mesenchymal stem cells (MSCs) to chondrocytes, through the self-assembly process. For this purpose, the expression of some chondrocyte markers, such as collagen type I, collagen type II, RUNX2 and lubricin was investigated at different times (7, 14, 21 and 28 days) of chondrogenic differentiation of MSCs, by using immunohistochemistry and Western blot analysis. The second aim of the study was to demonstrate that the expression of lubricin, such as the expression of collagen type II, could be a possible biomarker for the detection of chondrocytes well-being and viability in the natural self-assembling constructs, called 'cell pellets'. Histology (hematoxylin and eosin) and histochemistry (alcian blue staining) methods were used to assess the chondrogenic differentiation of MSCs. The results showed that after 21 days the differentiated chondrocytes, when compared with MSCs cultured without chondrogenic medium (CD44, CD90 and CD105 positive; CD45, CD14 and CD34 negative), were able to produce significant quantities of collagen type I, collagen type II, and lubricin, suggesting hyaline cartilage formation. During the differentiation phase, the cells showed a reduced expression of RUNX2, a protein expressed by osteoblasts. Our studies demonstrated that 21 days is the optimum time for the implantation of chondrocytes differentiated from adipose tissue-derived MSCs. This information could be useful for the future development of cell-based repair therapies for degenerative diseases of articular cartilage.
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Musumeci G, Castrogiovanni P, Trovato FM, Imbesi R, Giunta S, Szychlinska MA, Loreto C, Castorina S, Mobasheri A. Physical activity ameliorates cartilage degeneration in a rat model of aging: a study on lubricin expression. Scand J Med Sci Sports 2014; 25:e222-30. [PMID: 25039883 DOI: 10.1111/sms.12290] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/10/2014] [Indexed: 12/29/2022]
Abstract
Osteoarthritis (OA) is a common musculoskeletal disorder characterized by slow progression and joint tissue degeneration. Aging is one of the most prominent risk factors for the development and progression of OA. OA is not, however, an inevitable consequence of aging and age-related changes in the joint can be distinguished from those that are the result of joint injury or inflammatory disease. The question that remains is whether OA can be prevented by undertaking regular physical activity. Would moderate physical activity in the elderly cartilage (and lubricin expression) comparable to a sedentary healthy adult? In this study we used physical exercise in healthy young, adult, and aged rats to evaluate the expression of lubricin as a novel biomarker of chondrocyte senescence. Immunohistochemistry and western blotting were used to evaluate the expression of lubricin in articular cartilage, while enzyme-linked immunosorbent assay was used to quantify lubricin in synovial fluid. Morphological evaluation was done by histology to monitor possible tissue alterations. Our data suggest that moderate physical activity and normal mechanical joint loading in elderly rats improve tribology and lubricative properties of articular cartilage, promoting lubricin synthesis and its elevation in synovial fluid, thus preventing cartilage degradation compared with unexercised adult rats.
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Affiliation(s)
- G Musumeci
- Department of Bio-Medical Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Catania, Italy
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Musumeci G, Trovato FM, Pichler K, Weinberg AM, Loreto C, Castrogiovanni P. Extra-virgin olive oil diet and mild physical activity prevent cartilage degeneration in an osteoarthritis model: an in vivo and in vitro study on lubricin expression. J Nutr Biochem 2014; 24:2064-75. [PMID: 24369033 DOI: 10.1016/j.jnutbio.2013.07.007] [Citation(s) in RCA: 102] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Mediterranean diet includes a relatively high fat consumption mostly from monounsaturated fatty acids mainly provided by olive oil, the principal source of culinary and dressing fat. The beneficial effects of olive oil have been widely studied and could be due to its phytochemicals, which have been shown to possess anti-inflammatory properties. Lubricin is a chondroprotective glycoprotein and it serves as a critical boundary lubricant between opposing cartilage surfaces. A joint injury causes an initial flare of cytokines, which decreases lubricin expression and predisposes to cartilage degeneration such as osteoarthritis. The aim of this study was to evaluate the role of extra-virgin olive oil diet and physical activity on inflammation and expression of lubricin in articular cartilage of rats after injury. In this study we used histomorphometric, histological, immunocytochemical, immunohistochemical, western blot and biochemical analysis for lubricin and interleukin-1 evaluations in the cartilage and in the synovial fluid. We report the beneficial effect of physical activity (treadmill training) and extra-virgin olive oil supplementation, on the articular cartilage. The effects of anterior cruciate ligament transection decrease drastically the expression of lubricin and increase the expression of interleukin-1 in rats, while after physical activity and extra-virgin olive oil supplemented diet, the values return to a normal level compared to the control group. With our results we can confirm the importance of the physical activity in conjunction with extra-virgin olive oil diet in medical therapy to prevent osteoarthritis disease in order to preserve the articular cartilage and then the entire joint.
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Musumeci G, Trovato FM, Loreto C, Leonardi R, Szychlinska MA, Castorina S, Mobasheri A. Lubricin expression in human osteoarthritic knee meniscus and synovial fluid: a morphological, immunohistochemical and biochemical study. Acta Histochem 2014; 116:965-72. [PMID: 24932985 DOI: 10.1016/j.acthis.2014.03.011] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2014] [Revised: 03/24/2014] [Accepted: 03/28/2014] [Indexed: 12/16/2022]
Abstract
The purpose of this study was to investigate the expression of lubricin, the product of the human PRG4 (proteoglycan 4) gene, in menisci and synovial fluid from normal donors and patients with osteoarthritis (OA), using a combination of histology, immunohistochemistry, ELISA and Western blotting analysis, to provide further insight on the role of this protein in the progression of OA and pathological processes in the meniscus. Lubricin expression was studied in samples from 40 patients and in 9 normal donors after arthroscopic partial meniscectomy. Histological analysis confirmed normal microanatomy and the absence of structural changes in control samples. Menisci derived from OA patients showed evidence of structural alterations, fibrillations and clefts. Immunohistochemical analysis revealed very strong lubricin immunostaining in normal menisci in contrast to weak/moderate staining seen in osteoarthritic menisci. Quantitative ELISA and Western blot analysis confirmed the above results. The findings of this study support the notion that changes in lubricin expression and boundary-lubricating ability of cartilage is followed by the development of OA. This study could provide the biological foundation for the development of novel therapeutic treatments, to be applied before the surgery, for the prevention of post-traumatic cartilage damage.
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Affiliation(s)
- Giuseppe Musumeci
- Department of Bio-Medical Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia 87, 95125 Catania, Italy.
| | - Francesca Maria Trovato
- Department of Medical and Pediatric Sciences, Internal Medicine Division, University of Catania, Via S. Sofia 87, 95125 Catania, Italy
| | - Carla Loreto
- Department of Bio-Medical Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia 87, 95125 Catania, Italy
| | - Rosalia Leonardi
- Department of Medical and Surgical Sciences, II Dental Unity, University of Catania, Via S. Sofia 87, 95125 Catania, Italy
| | - Marta Anna Szychlinska
- Department of Bio-Medical Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia 87, 95125 Catania, Italy
| | - Sergio Castorina
- Department of Bio-Medical Sciences, Human Anatomy and Histology Section, School of Medicine, University of Catania, Via S. Sofia 87, 95125 Catania, Italy; Fondazione Mediterranea "G.B. Morgagni", Via Del Bosco 105, 95100 Catania, Italy
| | - Ali Mobasheri
- Faculty of Health and Medical Sciences, University of Surrey, Guildford, Surrey, GU2 7XH, UK; Arthritis Research UK Centre for Sport, Exercise and Osteoarthritis, Nottingham University Hospitals, Nottingham, NG7 2UH, UK; Center of Excellence in Genomic Medicine Research (CEGMR), King Fahd Medical Research Center (KFMRC), King AbdulAziz University, Jeddah, 21589, Saudi Arabia
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Effects of dietary extra-virgin olive oil on oxidative stress resulting from exhaustive exercise in rat skeletal muscle: a morphological study. Acta Histochem 2014; 116:61-9. [PMID: 23810034 DOI: 10.1016/j.acthis.2013.05.006] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 05/12/2013] [Accepted: 05/16/2013] [Indexed: 12/19/2022]
Abstract
Physical exercise induces oxidative stress through production of reactive oxygen species and can cause damage to muscle tissue. Oxidative stress, resulting from exhaustive exercise is high and improvement of antioxidant defenses of the body may ameliorate damage caused by free radicals. Extra-virgin olive oil is widely considered to possess anti-oxidative properties. The aim of this study was to determine if extra-virgin olive oil improved the adaptive responses in conditions of oxidative stress. Twenty-four 12-week-old male Sprague-Dawley rats were divided in three groups: (1) rats fed with standard chow and not subjected to physical exercise; (2) rats fed with standard chow and subjected to exhaustive exercise; (3) rats fed with a diet rich in oleic acid, the major component of extra-virgin olive oil, and subjected to exhaustive exercise. Exhaustive exercise consisted of forced running in a five-lane 10° inclined treadmill at a speed of 30 m/min for 70-75 min. We studied some biomarkers of oxidative stress and of antioxidant defenses, histology and ultrastructure of the Quadriceps femoris muscle (Rectus femoris). We observed that, in rats of group 3, parameters indicating oxidative stress such as hydroperoxides and thiobarbituric acid-reactive substances decreased, parameters indicating antioxidant defenses of the body such as non-enzymatic antioxidant capacity and Hsp70 expression increased, and R. femoris muscle did not show histological and ultrastructural alterations. Results of this study support the view that extra-virgin olive oil can improve the adaptive response of the body in conditions of oxidative stress.
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Raf kinase inhibitor protein (RKIP) and phospho-RKIP expression in melanomas. Acta Histochem 2013; 115:795-802. [PMID: 23601922 DOI: 10.1016/j.acthis.2013.03.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2013] [Accepted: 03/10/2013] [Indexed: 11/21/2022]
Abstract
Melanoma, a cancer notorious for its high potential to metastasize, arises from melanocytes, cells dedicated to melanin production and located in the basal layer of the epidermis. Raf-1 kinase inhibitor protein (RKIP) is an inhibitory molecule that down-regulates the effects of the Ras/Raf/MEK/ERK signaling pathway. The aim of this study was to examine the expression of RKIP and pRKIP in melanomas at different stages. We evaluated the RKIP and pRKIP protein by immunohistochemistry in control skin, pigmented nevi and melanomas, and through Western blotting in human normal melanocytes and in four different melanoma-derived cell lines (WM35, A375, M14, and A2058). Our results demonstrated a correlation between the expression of RKIP and pRKIP, and metastatic ability in melanoma cells. This raises the possibility to analyze both RKIP and pRKIP in all melanomas. Down-regulation of both RKIP and pRKIP expression could represent a useful marker of metastatic melanoma. On the contrary for non-metastatic melanoma, especially in Clark I and II, low RKIP and high pRKIP expression could be indicative. In conclusion, the observed negative correlation of the RKIP and pRKIP expression in metastatic melanomas indicates that expression of these proteins may become a prognostic marker for the progression of human cutaneous melanoma. We propose that the investigation of both RKIP and pRKIP may provide a useful tool indicative for metastatic or non-metastatic melanoma in different Clark's level melanomas. Further studies are required to verify the molecular background of the observed RKIP and pRKIP variations.
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Immunolocalization of heparin-binding EGF-like growth factor (HB-EGF) as a possible immunotarget in diagnosis of some soft tissue sarcomas. Acta Histochem 2013; 115:719-27. [PMID: 23597914 DOI: 10.1016/j.acthis.2013.02.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 02/12/2013] [Accepted: 02/13/2013] [Indexed: 02/06/2023]
Abstract
Heparin-binding EGF-like growth factor (HB-EGF), a member of the family of epidermal growth factors (EGFs), is involved in several biological processes and tumor formation. Several lines of evidence show that HB-EGF plays a key role in the acquisition of malignant phenotype. Studies show that HB-EGF expression is essential in oncogenesis of cancer-derived cell lines. HB-EGF is a promising target for cancer therapy. The aim of this study was to find new insights on the biological features of the soft tissue sarcomas, in order to consider the possibility to use HB-EGF as an immuno-target in histotype characterization and to facilitate therapeutic intervention. In our study we did HB-EGF-immunostaining on tissue samples collected from 43 human soft tissue sarcomas. We analyzed HB-EGF immunoexpression in some types of tumors such as clear cell sarcomas, leiomyosarcomas, phyllodes sarcomas, chondrosarcomas and liposarcomas. In relation to the different histotypes, we detected different immunostaining localization. From our results it was evident that pleomorphic cells, a signal of tumor progression, were HB-EGF immunostained, and this was accompanied by an extracellular matrix immunostaining. Moreover statistical analysis showed a correlation between HB-EGF immunostaining and the different types of analyzed soft tissue sarcomas. In conclusion, in some types of soft tissue sarcoma HB-EGF could be considered a useful diagnostic marker for their characterization.
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Musumeci G, Castrogiovanni P, Loreto C, Castorina S, Pichler K, Weinberg AM. Post-traumatic caspase-3 expression in the adjacent areas of growth plate injury site: a morphological study. Int J Mol Sci 2013; 14:15767-84. [PMID: 23899790 PMCID: PMC3759885 DOI: 10.3390/ijms140815767] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Revised: 07/03/2013] [Accepted: 07/19/2013] [Indexed: 12/17/2022] Open
Abstract
The epiphyseal plate is a hyaline cartilage plate that sits between the diaphysis and the epiphysis. The objective of this study was to determine the impact of an injury in the growth plate chondrocytes through the study of histological morphology, immunohistochemistry, histomorphometry and Western Blot analyses of the caspase-3 and cleaved PARP-1, and levels of the inflammatory cytokines, Interleukin-6 (IL-6) and Tumor Necrosis Factor alpha (TNF-α), in order to acquire more information about post-injury reactions of physeal cell turnover. In our results, morphological analysis showed that in experimental bones, neo-formed bone trabeculae-resulting from bone formation repair-invaded the growth plate and reached the metaphyseal bone tissue (bone bridge), and this could result in some growth arrest. We demonstrated, by ELISA, increased expression levels of the inflammatory cytokines IL-6 and TNF-α. Immunohistochemistry, histomorphometry and Western Blot analyses of the caspase-3 and cleaved PARP-1 showed that the physeal apoptosis rate of the experimental bones was significantly higher than that of the control ones. In conclusion, we could assume that the inflammation process causes stress to chondrocytes that will die as a biological defense mechanism, and will also increase the survival of new chondrocytes for maintaining cell homeostasis. Nevertheless, the exact stimulus leading to the increased apoptosis rate, observed after injury, needs additional research to understand the possible contribution of chondrocyte apoptosis to growth disturbance.
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Affiliation(s)
- Giuseppe Musumeci
- Department of Bio-Medical Sciences, Human Anatomy and Histology Section, University of Catania, Catania 95123, Italy; E-Mails: (P.C.); (C.L.); (S.C.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +39-0-953-782-043; Fax: +39-0-953-782-034
| | - Paola Castrogiovanni
- Department of Bio-Medical Sciences, Human Anatomy and Histology Section, University of Catania, Catania 95123, Italy; E-Mails: (P.C.); (C.L.); (S.C.)
| | - Carla Loreto
- Department of Bio-Medical Sciences, Human Anatomy and Histology Section, University of Catania, Catania 95123, Italy; E-Mails: (P.C.); (C.L.); (S.C.)
| | - Sergio Castorina
- Department of Bio-Medical Sciences, Human Anatomy and Histology Section, University of Catania, Catania 95123, Italy; E-Mails: (P.C.); (C.L.); (S.C.)
| | - Karin Pichler
- Department of Orthopaedic Surgery, Medical University of Graz, Graz 8036, Austria; E-Mails: (K.P.); (A.W.W.)
| | - Annelie Martina Weinberg
- Department of Orthopaedic Surgery, Medical University of Graz, Graz 8036, Austria; E-Mails: (K.P.); (A.W.W.)
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Castrogiovanni P, Musumeci G, Trovato FM, Avola R, Magro G, Imbesi R. Effects of high-tryptophan diet on pre- and postnatal development in rats: a morphological study. Eur J Nutr 2013; 53:297-308. [PMID: 23644750 DOI: 10.1007/s00394-013-0528-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Accepted: 04/17/2013] [Indexed: 01/16/2023]
Abstract
PURPOSE Tryptophan is an essential amino acid, precursor of serotonin. Serotonin (5HT) regulates the secretion of pituitary growth hormone (GH), which in turn stimulates the liver to produce insulin-like growth factor-I (IGF-I) that is necessary for development and growth. The aim of our study was to investigate the effects of an excess of tryptophan in the diet of pregnant rats on the differentiation of skeletal muscle tissue. METHODS We conducted an immunohistochemical study on the IGF-I expression in hepatic and muscle tissues in offspring, and then, we associated this molecular data with morphological effects on the structure of the muscle fibers and hepatic tissue at different postnatal weeks, from birth to sexual maturity. Measurements of 5HT, GH in blood, and of tryptophan hydroxylase (Tph) activity in gastrointestinal tracts tissue were also taken. RESULTS Hyperserotonemia and higher values of Tph activity were detected in both pregnant rats and pups. Very low levels of GH were detected in experimental pups. Morphological alterations of the muscle fibers and lower IGF-I expression in hepatic and muscle tissue in pups were found. CONCLUSIONS Our data suggest that an excess of tryptophan in the diet causes hyperserotonemia in fetus. Hyperserotonemia results in an excess of serotonin in the brain where it has an adverse effect on the development of serotonergic neurons. The affected neurons do not regulate optimally the secretion of pituitary GH that consequently decreases. This limits stimulation in the liver to produce IGF-I, crucial for development and growth of pups.
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Affiliation(s)
- Paola Castrogiovanni
- Department of Bio-Medical Science, Section of Human Anatomy and Histology, University of Catania, Via S. Sofia 87, 95123, Catania, Italy
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Musumeci G, Loreto C, Leonardi R, Castorina S, Giunta S, Carnazza ML, Trovato FM, Pichler K, Weinberg AM. The effects of physical activity on apoptosis and lubricin expression in articular cartilage in rats with glucocorticoid-induced osteoporosis. J Bone Miner Metab 2013; 31:274-84. [PMID: 23263781 DOI: 10.1007/s00774-012-0414-9] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Accepted: 11/28/2012] [Indexed: 12/26/2022]
Abstract
Glucocorticoids are considered the most powerful anti-inflammatory and immunomodulating drugs. However, a number of side-effects are well documented in different diseases, including articular cartilage, where increases or decreases in the synthesis of hormone-dependent extracellular matrix components are seen. The objective of this study has been to test the effects of procedures or drugs affecting bone metabolism on articular cartilage in rats with prednisolone-induced osteoporosis and to evaluate the outcomes of physical activity with treadmill and vibration platform training on articular cartilage. The animals were divided into 5 groups, and bone and cartilage evaluations were performed using whole-body scans and histomorphometric analysis. Lubricin and caspase-3 expression were evaluated by immunohistochemistry, Western blot analysis and biochemical analysis. These results confirm the beneficial effect of physical activity on the articular cartilage. The effects of drug therapy with glucocorticoids decrease the expression of lubricin and increase the expression of caspase-3 in the rats, while after physical activity the values return to normal compared to the control group. Our findings suggest that it might be possible that mechanical stimulation in the articular cartilage could induce the expression of lubricin, which is capable of inhibiting caspase-3 activity, preventing chondrocyte death. We can assume that the physiologic balance between lubricin and caspase-3 could maintain the integrity of cartilage. Therefore, in certain diseases such as osteoporosis, mechanical stimulation could be a possible therapeutic treatment. With our results we can propose the hypothesis that physical activity could also be used as a therapeutic treatment for cartilage disease such as osteoarthritis.
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Affiliation(s)
- Giuseppe Musumeci
- Department of Bio-Medical Sciences, Human Anatomy and Histology Section, University of Catania, Catania, Italy.
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