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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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Lungova V, Wendt K, Thibeault SL. Exposure to e-cigarette vapor extract induces vocal fold epithelial injury and triggers intense mucosal remodeling. Dis Model Mech 2022; 15:275857. [PMID: 35770504 PMCID: PMC9438930 DOI: 10.1242/dmm.049476] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Accepted: 06/24/2022] [Indexed: 11/20/2022] Open
Abstract
Vaping has been reported to cause acute epiglottitis, a life-threatening airway obstruction induced by direct epithelial injury and subsequent inflammatory reaction. Here, we show that we were able to recapitulate this phenomenon in vitro. Exposure of human engineered vocal fold (VF) mucosae to 0.5% and 5% electronic cigarette (e-cigarette) vapor extract (ECVE) for 1 week induced cellular damage of luminal cells, disrupting homeostasis and innate immune responses. Epithelial erosion was likely caused by accumulation of solvents and lipid particles in the cytosol and intercellular spaces, which altered lipid metabolism and plasma membrane properties. Next, we investigated how the mucosal cells responded to the epithelial damage. We withdrew the ECVE from the experimental system and allowed VF mucosae to regenerate for 1, 3 and 7 days, which triggered intense epithelial remodeling. The epithelial changes included expansion of P63 (TP63)-positive basal cells and cytokeratin 14 (KRT14) and laminin subunit α-5 (LAMA5) deposition, which might lead to local basal cell hyperplasia, hyperkeratinization and basement membrane thickening. In summary, vaping presents a threat to VF mucosal health and airway protection, thereby raising further concerns over the safety of e-cigarette use. This article has an associated First Person interview with the first author of the paper. Editor's choice: Exposure of vocal fold mucosae to e-cigarette vapor extract induces lipid-mediated epithelial injury that disrupts vocal fold mucosal homeostasis and innate barrier function and triggers intense mucosal remodeling.
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Affiliation(s)
- Vlasta Lungova
- Department of Surgery, University of Wisconsin Madison, 5105 WIMR, Madison, WI, USA
| | - Kristy Wendt
- Department of Surgery, University of Wisconsin Madison, 5105 WIMR, Madison, WI, USA
| | - Susan L Thibeault
- Department of Surgery, University of Wisconsin Madison, 5103 WIMR, Madison, WI, USA
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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: 9] [Impact Index Per Article: 2.3] [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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Nakauchi A, Shintani S, Kokubu E, Nakajima K, Matsuzaka K, Inoue T. Expression of Cytokeratin in Experimentally Created Inflammatory Cyst in Vivo and in Vitro. THE BULLETIN OF TOKYO DENTAL COLLEGE 2019; 60:267-277. [PMID: 31761877 DOI: 10.2209/tdcpublication.2018-0059] [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] [Indexed: 11/06/2022]
Abstract
The purpose of this study was to investigate the behavior of epithelial lining derived from Malassez's epithelial rest (MER) cells in experimentally created inflammatory cysts in vivo and in vitro. Porcine MER cells were cultured in vitro with or without interleukin (IL)-1β (1 ng/ml) or IL-6 (1 ng/ml). Cell proliferation was assessed and expression levels of CK19 and CK13 mRNA determined using RT-PCR. In vivo, a cavity was created in the first molar of Sprague-Dawley male rats and tissue repair observed using immunohistochemical methods. In vitro, treatment with IL-1β or IL-6 increased proliferation of MER cells and decreased expression of CK19 mRNA, but increased CK13 mRNA at day 1 (p<0.05). In vivo, at 2 weeks, CK19-positive epithelial cells were observed adjacent to the cementum, in the cystic lesion, and in connective tissue. At 3 weeks, they were only detected in cells adjacent to the connective tissue. Cells positive for CK13 were observed throughout the epithelium, except in cells adjacent to connective tissue at weeks 2 and 3. Exposure to IL-1β and/or IL-6 induced proliferation and differentiation of MER cells.
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Affiliation(s)
| | | | | | - Kei Nakajima
- Department of Clinical Pathophysiology, Tokyo Dental College
| | | | - Takashi Inoue
- Department of Clinical Pathophysiology, Tokyo Dental College
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Zhang C, Liu J, Yuan C, Ji Q, Chen D, Zhao H, Jiang W, Ma K, Liu L. JAK2/STAT3 is associated with the inflammatory process in periapical granuloma. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2019; 12:190-197. [PMID: 31933733 PMCID: PMC6944025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 11/23/2018] [Indexed: 06/10/2023]
Abstract
OBJECTIVE It has been shown that JAK2/STAT3 is involved in the occurrence of various inflammatory diseases. The purpose of this study was to associate the expression of Janus kinase 2 (JAK2) and its receptor signal transducer and activator of transcription 3 (STAT3) and suppressors of cytokine signaling 3 (SOCS3), to periapical granuloma. METHODS Samples were collected from 40 patients who were divided into two groups, namely, healthy control (N=20) and periapical granuloma (N=20) groups in accordance with classified standards. The samples were prepared for histological analysis, immunohistochemistry, and double immunofluorescence staining. RESULTS Only slight inflammatory cell infiltration was observed in the tissues from the healthy control group. Extensive infiltration of inflammatory cells was observed in patients with chronic periapical disease. The periapical granuloma group had higher levels of JAK2, STAT3, p-JAK2, p-STAT3 and SOCS3 (all P<0.05) than the control group. Double immunofluorescence staining results showed the presence of JAK2-positive and STAT3-positive cells in the periapical lesion areas. CONCLUSIONS This study demonstrated that JAK2, STAT3, and SOCS3 can be observed and may be associated with the inflammatory process in periapical lesions. The results of this study will provide new insights into the pathological mechanisms of human periapical granuloma.
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Affiliation(s)
- Chen Zhang
- Department of Stomatology, Affiliated Hospital of Qingdao UniversityQingdao, P. R. China
- Qingdao UniversityQingdao, P. R. China
| | - Jun Liu
- Department of Stomatology, Affiliated Hospital of Qingdao UniversityQingdao, P. R. China
| | - Changqing Yuan
- Department of Stomatology, Affiliated Hospital of Qingdao UniversityQingdao, P. R. China
| | - Qiuxia Ji
- Department of Stomatology, Affiliated Hospital of Qingdao UniversityQingdao, P. R. China
| | - Daiyun Chen
- Department of Stomatology, Affiliated Hospital of Taishan UniversityTaian, P. R. China
| | - Han Zhao
- Department of Pathology, Affiliated Hospital of Qingdao UniversityQingdao, P. R. China
| | - Weijie Jiang
- Department of Stomatology, Affiliated Hospital of Qingdao UniversityQingdao, P. R. China
- Qingdao UniversityQingdao, P. R. China
| | - Kangjie Ma
- Department of Stomatology, Affiliated Hospital of Qingdao UniversityQingdao, P. R. China
- Qingdao UniversityQingdao, P. R. China
| | - Lingshuang Liu
- Department of Stomatology, Affiliated Hospital of Qingdao UniversityQingdao, P. R. China
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Zhang F, Suzuki M, Kim IS, Kobayashi R, Hamada N, Sato F, Bhawal UK. Transcription factor DEC1 is required for maximal experimentally induced periodontal inflammation. J Periodontal Res 2018; 53:883-893. [DOI: 10.1111/jre.12578] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2018] [Indexed: 11/28/2022]
Affiliation(s)
- F. Zhang
- Department of Anesthesiology; Nihon University School of Dentistry at Matsudo; Chiba Japan
| | - M. Suzuki
- Department of Anesthesiology; Nihon University School of Dentistry at Matsudo; Chiba Japan
| | - I. S. Kim
- Department of Dental Hygiene; Honam University; Gwangju Korea
| | - R. Kobayashi
- Department of Microbiology and Immunology; Nihon University School of Dentistry at Matsudo; Chiba Japan
| | - N. Hamada
- Division of Microbiology; Department of Oral Science; Graduate School of Dentistry; Kanagawa Dental University; Yokosuka Japan
| | - F. Sato
- Department of Pathology; Wakayama Medical University School of Medicine; Wakayama Japan
| | - U. K. Bhawal
- Department of Biochemistry and Molecular Biology; Nihon University School of Dentistry at Matsudo; Chiba Japan
- Research Institute of Oral Health; Nihon University School of Dentistry at Matsudo; Chiba Japan
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Diomede F, Zingariello M, Cavalcanti MFXB, Merciaro I, Pizzicannella J, De Isla N, Caputi S, Ballerini P, Trubiani O. MyD88/ERK/NFkB pathways and pro-inflammatory cytokines release in periodontal ligament stem cells stimulated by Porphyromonas gingivalis. Eur J Histochem 2017; 61:2791. [PMID: 28735521 PMCID: PMC5452629 DOI: 10.4081/ejh.2017.2791] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 05/15/2017] [Accepted: 05/18/2017] [Indexed: 12/16/2022] Open
Abstract
The present study was aimed at investigating whether human Periodontal Ligament Stem Cells (hPDLSCs) were capable of sensing and reacting to lipopolysaccharide from Porphyromonas gingivalis (LPS-G) which is widely recognized as a major pathogen in the development and progression of periodontitis. At this purpose hPDLCs were stimulated with 5 μg/mL LPS-G at various times and the expression of toll-like receptor 4 (TLR4) was evaluated. Toll-like receptors (TLRs) play an essential role in innate immune signaling in response to microbial infections, and in particular TLR4, type-I transmembrane proteins, has been shown recognizing LPS-G. Our results put in evidence, in treated samples, an overexpression of TLR4 indicating that, hPDLSCs express a functional TLR4 receptor. In addition, LPS-G challenge induces a significant cell growth decrease starting from 24 h until 72 h of treatment. LPS-G leads the activation of the TLR4/MyD88 complex, triggering the secretion of proinflammatory cytokines cascade as: IL-1α, IL-8, TNF-α and β and EOTAXIN. Moreover, the upregulation of pERK/ERK signaling pathways and NFkB nuclear translocation was evident. On the basis of these observations, we conclude that hPDLSCs could represent an appropriate stem cells niche modeling leading to understand and evaluate the biological mechanisms of periodontal stem cells in response to LPS-G, mimicking in vitro an inflammatory process occurring in vivo in periodontal disease.
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Affiliation(s)
- Francesca Diomede
- University "G. d'Annunzio" Chieti-Pescara, Department of Medical, Oral and Biotechnological Sciences.
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Ran S, Liu B, Gu S, Sun Z, Liang J. Analysis of the expression of NLRP3 and AIM2 in periapical lesions with apical periodontitis and microbial analysis outside the apical segment of teeth. Arch Oral Biol 2017; 78:39-47. [PMID: 28193569 DOI: 10.1016/j.archoralbio.2017.02.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2016] [Revised: 01/31/2017] [Accepted: 02/05/2017] [Indexed: 01/14/2023]
Abstract
OBJECTIVE To detect the distribution and expression levels of the nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) and the absent in Melanoma 2 (AIM2) inflammasomes in periapical lesions and to analyse the possible microbial stimuli outside of teeth. DESIGN The distribution of NLRP3 and AIM2 inflammasomes in sixteen periapical lesions was investigated by immunohistochemistry. Meanwhile, the relative gene expression levels of NLRP3 and AIM2 in sixteen periapical lesions and three health periodontal tissue were quantified by real-time polymerase chain reaction (PCR). Moreover, forty-seven teeth without sinus tracts were obtained in the clinic and included in bacterial analysis using PCR. Then, the mRNA levels of apoptosis-associated speck-like protein (ASC), caspase-1, interleukin-1β (IL-1β), NLRP3 and AIM2 in THP-1-derived macrophages treated with lipopolysaccharides (LPS) of Porphyromonas were also quantified by real-time PCR, and the IL-1β secretion level was investigated using enzyme-linked immunosorbent assay (ELISA). RESULTS NLRP3 and AIM2 were positively expressed in periapical lesions and were mainly distributed in inflammatory cells. Most of the samples that demonstrated up-regulation of NLRP3 mRNA also demonstrated up-regulation of caspase-1 mRNA. Microbial analysis revealed that Porphyromonas endodontalis was the most commonly detected species and was detected in 27 of 47 cases (57.4%), followed by Fusobacterium nucleatum (20/47, 42.6%), Porphyromonas gingivalis (19/47, 40.4%), Tannerella forsythia (19/47, 40.4%), Actinomyces sp. (17/47, 36.17%), Treponema denticola (10/47,21.28%), Actinomyces israelii (9/47,19.15%), Prevotella intermedia (6/47, 12.77%), Enterococcus faecalis (1/47,2.13%) and Enterococcus faecium (0/47,0). Furthermore, we found that LPS of P. gingivalis induced THP-1 cells to produce IL-1β and to activate NLRP3 and AIM2 inflammasomes. CONCLUSIONS Our results suggest that the NLRP3 and AIM2 proteins play a part in the pathogenesis of periapical periodontitis. Anaerobes, such as P. endodontalis, P. gingivalis, F. nucleatum and T. forsythia, were the main detected microbial stimuli that might activate inflammasomes in periapical tissues.
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Affiliation(s)
- Shujun Ran
- Department of Endodontics and Operative Dentistry, Shanghai Key Laboratory of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 639, Zhizaoju Road, Shanghai, 200011, China
| | - Bin Liu
- Department of Endodontics and Operative Dentistry, Shanghai Key Laboratory of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 639, Zhizaoju Road, Shanghai, 200011, China
| | - Shensheng Gu
- Department of Endodontics and Operative Dentistry, Shanghai Key Laboratory of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 639, Zhizaoju Road, Shanghai, 200011, China
| | - Zhe Sun
- Department of Endodontics and Operative Dentistry, Shanghai Key Laboratory of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 639, Zhizaoju Road, Shanghai, 200011, China.
| | - Jingping Liang
- Department of Endodontics and Operative Dentistry, Shanghai Key Laboratory of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiao Tong University, No. 639, Zhizaoju Road, Shanghai, 200011, China.
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Pellicciari C. Is there still room for novelty, in histochemical papers? Eur J Histochem 2016; 60:2758. [PMID: 28076939 PMCID: PMC5381530 DOI: 10.4081/ejh.2016.2758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Accepted: 12/15/2016] [Indexed: 12/11/2022] Open
Abstract
Histochemistry continues to be widely applied in biomedical research, being nowadays mostly addressed to detect and locate single molecules or molecular complexes inside cells and tissues, and to relate structural organization and function at the high resolution of the more advanced microscopical techniques. In the attempt to see whether histochemical novelties may be found in the recent literature, the articles published in the European Journal of Histochemistry in the period 2014-2016 have been reviewed. In the majority of the published papers, standardized methods have been preferred by scientists to make their results reliably comparable with the data in the literature, but several papers (approximately one fourth of the published articles) described novel histochemical methods and procedures. It is worth noting that there is a growing interest for minimally-invasive in vivo techniques (magnetic resonance imaging, autofluorescence spectroscopy), which may parallel conventional histochemical analyses to acquire evidence not only on the morphological features of living organs and tissues, but also on their functional, biophysical and molecular characteristics. Thanks to this unceasing methodological refinement, histochemistry will continue to provide innovative applications in the biomedical field.
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Pellicciari C. Histochemistry in biology and medicine: a message from the citing journals. Eur J Histochem 2015; 59:2610. [PMID: 26708189 PMCID: PMC4698620 DOI: 10.4081/ejh.2015.2610] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 12/21/2015] [Indexed: 02/08/2023] Open
Abstract
Especially in recent years, biomedical research has taken advantage of the progress in several disciplines, among which microscopy and histochemistry. To assess the influence of histochemistry in the biomedical field, the articles published during the period 2011-2015 have been selected from different databases and grouped by subject categories: as expected, biological and biomedical studies where histochemistry has been used as a major experimental approach include a wide of basic and applied researches on both humans and other animal or plant organisms. To better understand the impact of histochemical publications onto the different biological and medical disciplines, it was useful to look at the journals where the articles published in a multidisciplinary journal of histochemistry have been cited: it was observed that, in the five-years period considered, 20% only of the citations were in histochemical periodicals, the remaining ones being in journals of Cell & Tissue biology, general and experimental Medicine, Oncology, Biochemistry & Molecular biology, Neurobiology, Anatomy & Morphology, Pharmacology & Toxicology, Reproductive biology, Veterinary sciences, Physiology, Endocrinology, Tissue engineering & Biomaterials, as well as in multidisciplinary journals.It is easy to foresee that also in the future the histochemical journals will be an attended forum for basic and applied scientists in the biomedical field. It will be crucial that these journals be open to an audience as varied as possible, publishing articles on the application of refined techniques to very different experimental models: this will stimulate non-histochemist scientists to approach histochemistry whose application horizon could expand to novel and possibly exclusive subjects.
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