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Arafat EA, El-Khair SMA, Elsamanoudy AZ, Shabaan DA. Study of the Possible Alleviated Role of Atorvastatin on Irinotecan-Induced Lingual Mucosal Damage: Histological and Molecular Study. Oxid Med Cell Longev 2021; 2021:9690047. [PMID: 34630855 PMCID: PMC8497104 DOI: 10.1155/2021/9690047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/05/2021] [Accepted: 09/03/2021] [Indexed: 11/24/2022]
Abstract
BACKGROUND Oral mucositis is the most debilitating and troublesome adverse effect of irinotecan (CPT-11) treatment. It adversely affects the patient quality of life. The aim of this work was to study the histological, immunohistochemical, and molecular changes in the oral mucosa by CPT-11 and the possible alleviated role of atorvastatin. METHODS Rats were randomly divided into control, CPT-11-treated group, and CPT-11+ atorvastatin-treated group. At the end of the experiment, the anterior two-thirds of the tongue was dissected out and divided into two parts: one part for light microscopic examination and the second for molecular study. RESULTS CPT-11-treated group revealed loss of normal mucosal organization, areas of ulceration and inflammation, and loss of architecture of lingual papillae. A significant decrease in immunohistochemical and molecular gene expression of Ki-67 and antiapoptotic Bcl-2 levels was observed. A significant increase in NF-κB immunohistochemical and mRNA gene expression level and a nonsignificant increase in Nrf2 gene expression were detected. Coadministration of atorvastatin showed remarkable improvement in the histopathological picture with a significant increase in Ki-67 and Bcl-2, a significant decrease in NF-κB protein and gene expression, and a significant increase in Nrf2 gene expression. CONCLUSION Atorvastatin substantially attenuates CPT-11-induced oral mucositis through the initiation of the antiapoptotic gene, modulation of the inflammatory, and antioxidant gene expression.
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Affiliation(s)
- Eetmad A Arafat
- Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, Egypt
| | - S M Abo El-Khair
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Mansoura University, Egypt
| | - A Z Elsamanoudy
- Medical Biochemistry and Molecular Biology Department, Faculty of Medicine, Mansoura University, Egypt
- Department of Clinical Biochemistry, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Dalia A Shabaan
- Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, Egypt
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2
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Lu P, ElMallah MK, Liu Z, Wu C, Chen J, Lifshitz LM, ZhuGe R. Genetic deletion of the Tas2r143/Tas2r135/Tas2r126 cluster reveals that TAS2Rs may not mediate bitter tastant-induced bronchodilation. J Cell Physiol 2021; 236:6407-6423. [PMID: 33559206 PMCID: PMC8223514 DOI: 10.1002/jcp.30315] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Revised: 01/19/2021] [Accepted: 01/27/2021] [Indexed: 11/09/2022]
Abstract
Bitter taste receptors (TAS2Rs) and their signaling elements are detected throughout the body, and bitter tastants induce a wide variety of biological responses in tissues and organs outside the mouth. However, the roles of TAS2Rs in these responses remain to be tested and established genetically. Here, we employed the CRISPR/Cas9 gene-editing technique to delete three bitter taste receptors-Tas2r143/Tas2r135/Tas2r126 (i.e., Tas2r triple knockout [TKO]) in mice. The fidelity and effectiveness of the Tas2r deletions were validated genetically at DNA and messenger RNA levels and functionally based on the tasting of TAS2R135 and TAS2R126 agonists. Bitter tastants are known to relax airways completely. However, TAS2R135 or TAS2R126 agonists either failed to induce relaxation of pre-contracted airways in wild-type mice and Tas2r TKO mice or relaxed them dose-dependently, but to the same extent in both types of mice. These results indicate that TAS2Rs are not required for bitter tastant-induced bronchodilation. The Tas2r TKO mice also provide a valuable model to resolve whether TAS2Rs mediate bitter tastant-induced responses in many other extraoral tissues.
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Affiliation(s)
- Ping Lu
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Mai K ElMallah
- Horae Gene Therapy Center, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Zeyu Liu
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Chan Wu
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Jun Chen
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Lawrence M Lifshitz
- Program in Molecular Medicine, University of Massachusetts Medical School, Worcester, Massachusetts, USA
| | - Ronghua ZhuGe
- Department of Microbiology and Physiological Systems, University of Massachusetts Medical School, Worcester, Massachusetts, USA
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Abstract
Angiotensin converting enzyme inhibitor-induced angioedema is typically easily recognizable in the emergency department. Angioedema lateralizing to one side, however, is infrequently reported, rare, and has the same potential of progression to airway compromise. We present of a case of an 80-year-old man with angioedema of the lower lip that had regressed prior to significant progression of right sided angioedema of the tongue and oropharynx.
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Affiliation(s)
- Jennifer E Lee
- Cook County Health, Department of Emergency Medicine, Chicago, IL 60612, United States of America
| | - Sean M Bryant
- Cook County Health, Department of Emergency Medicine, 1950 West Polk, 7th Floor, Chicago, IL 60612, United States of America.
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4
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Xue D, Zhou X, Qiu J. Cytotoxicity mechanisms of plumbagin in drug-resistant tongue squamous cell carcinoma. J Pharm Pharmacol 2021; 73:98-109. [PMID: 33791802 DOI: 10.1093/jpp/rgaa027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 10/22/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVES To evaluate the inhibitory effect and mechanism of plumbagin (PLB) against drug-resistant tongue squamous cell carcinoma (TSCC), and whether its antitumour effect is not affected by tumour drug resistance. METHODS TSCC sensitive CAL27 cells and drug-resistant CAL27/RE cells were used to study the cytotoxicity and mechanism of PLB in vitro, including CCK-8 analysis, colony formation, DAPI staining, flow cytometry assay, transmission electron microscopy, western blotting assay, autophagy, apoptosis and ROS fluorescent probes. BALB/c nude mice xenograft models were used to study the growth inhibitory effect of PLB in vivo. KEY FINDINGS The results showed that the cell viability and proliferation inhibition and apoptosis induction abilities of PLB on drug-resistant cells were more obvious than that on sensitive cells. And PLB induced protective autophagy in TSCC cells. Mechanistically, PLB induced apoptosis and autophagy by generating reactive oxygen species to mediate JNK and AKT/mTOR pathways. Finally, the growth inhibitory effect of PLB against drug-resistant TSCC was also confirmed in vivo. CONCLUSIONS PLB will be a promising anticancer agent to overcome drug-resistant TSCC without being affected by its drug resistance properties.
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Affiliation(s)
- Danfeng Xue
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Xiongming Zhou
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - Jiaxuan Qiu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
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Melis M, Sollai G, Mastinu M, Pani D, Cosseddu P, Bonfiglio A, Crnjar R, Tepper BJ, Tomassini Barbarossa I. Electrophysiological Responses from the Human Tongue to the Six Taste Qualities and Their Relationships with PROP Taster Status. Nutrients 2020; 12:E2017. [PMID: 32645975 PMCID: PMC7400817 DOI: 10.3390/nu12072017] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 07/01/2020] [Accepted: 07/02/2020] [Indexed: 02/07/2023] Open
Abstract
Taste buds containing receptor cells that primarily detect one taste quality provide the basis for discrimination across taste qualities. The molecular receptor multiplicity and the interactions occurring between bud cells encode information about the chemical identity, nutritional value, and potential toxicity of stimuli before transmitting signals to the hindbrain. PROP (6-n-propylthiouracil) tasting is widely considered a marker for individual variations of taste perception, dietary preferences, and health. However, controversial data have been reported. We present measures of the peripheral gustatory system activation in response to taste qualities by electrophysiological recordings from the tongue of 39 subjects classified for PROP taster status. The waveform of the potential variation evoked depended on the taste quality of the stimulus. Direct relationships between PROP sensitivity and electrophysiological responses to taste qualities were found. The largest and fastest responses were recorded in PROP super-tasters, who had the highest papilla density, whilst smaller and slower responses were found in medium tasters and non-tasters with lower papilla densities. The intensities perceived by subjects of the three taster groups correspond to their electrophysiological responses for all stimuli except NaCl. Our results show that each taste quality can generate its own electrophysiological fingerprint on the tongue and provide direct evidence of the relationship between general taste perception and PROP phenotype.
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Affiliation(s)
- Melania Melis
- Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, CA, Italy; (G.S.); (M.M.); (R.C.)
| | - Giorgia Sollai
- Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, CA, Italy; (G.S.); (M.M.); (R.C.)
| | - Mariano Mastinu
- Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, CA, Italy; (G.S.); (M.M.); (R.C.)
| | - Danilo Pani
- Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d’Armi, I 09123 Cagliari, CA, Italy; (D.P.); (P.C.); (A.B.)
| | - Piero Cosseddu
- Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d’Armi, I 09123 Cagliari, CA, Italy; (D.P.); (P.C.); (A.B.)
| | - Annalisa Bonfiglio
- Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d’Armi, I 09123 Cagliari, CA, Italy; (D.P.); (P.C.); (A.B.)
| | - Roberto Crnjar
- Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, CA, Italy; (G.S.); (M.M.); (R.C.)
| | - Beverly J. Tepper
- Department of Food Science, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ 08901-8520, USA;
| | - Iole Tomassini Barbarossa
- Department of Biomedical Sciences, University of Cagliari, 09042 Monserrato, CA, Italy; (G.S.); (M.M.); (R.C.)
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Faruk EM, Nafea OE, Fouad H, Ebrahim UFA, Hasan RAA. Possible healing effects of Salvadora persica extract (MISWAK) and laser therapy in a rabbit model of a caustic-induced tongue ulcers: histological, immunohistochemical and biochemical study. J Mol Histol 2020; 51:341-352. [PMID: 32472334 DOI: 10.1007/s10735-020-09884-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 05/23/2020] [Indexed: 12/24/2022]
Abstract
Caustic ingestion is a potentially detrimental event that can cause serious devastating damage on contact with tissues. Local exposure is associated with severe pain, swelling and ulceration. Caustics-induced oral ulcers can be painful enough to compromise the patient's quality of life. Treatment of oral ulcers is crucial in clinical practice. Albeit, some ulcers do not respond adequately to the conventional treatment. The current study was conducted to evaluate the potential healing effects of topical Salvadora persica (SP) extract, low-level laser (LLL) and high-level laser (HLL) therapies in a rabbit model of caustic-induced tongue ulcers and explore the underlying mechanisms. Fifty male rabbits with a caustic induced tongue ulcers were included in the study. Rabbits were equally divided into four groups: positive control (ulcer) group, SP, LLL and HLL groups in addition to the negative control (healthy) group. All treatments were given thrice weekly for 14 days. Results showed that acetic acid-induced tongue ulcers caused extensive structural tongue damage secondary to overexpression of apoptotic BAX, pathological angiogenesis indicated by VEGF overexpression, marked collagen fibers deposition as well as upregulation of tissue pro-inflammatory TNF-α and upregulation of tissue anti-inflammatory IL-10. The healing potential of topical SP, LLL and HLL therapy are mostly comparable. In conclusion, acetic acid-induced extensive tongue damage. Topical SP extract, LLL and HLL are equally effective therapies against caustics-induced tongue ulcers. However, we recommend SP extract, owing to its safety, non-invasiveness, availability and low cost.
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Affiliation(s)
- Eman Mohamed Faruk
- Histology and Cell Biology Department, Faculty of Medicine, Benha University, Benha, Egypt.
| | - Ola Elsayed Nafea
- Forensic Medicine and Clinical Toxicology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Hanan Fouad
- Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Giza, Egypt
| | | | - Rehab Abd Allah Hasan
- Histology and Cell Biology Department, Faculty of Medicine for Girls (AFMG), Al-Azhar University, Cairo, Egypt
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He L, Yang H, Chen Z, Ouyang X. The Effect of Streptococcus salivarius K12 on Halitosis: a Double-Blind, Randomized, Placebo-Controlled Trial. Probiotics Antimicrob Proteins 2020; 12:1321-1329. [PMID: 32227309 DOI: 10.1007/s12602-020-09646-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This study was to evaluate the effect of Streptococcus salivarius K12 on tongue coating-associated halitosis. Twenty-eight subjects having tongue coating-associated halitosis were randomly divided into either a test or control group. For each of the 30 days, the test subjects sucked S. salivarius K12 tablet while the control subjects sucked placebo tablets. All the subjects did not take physical (tongue scraping) and chemical (antiseptic mouth-rinse) oral cavity pretreatment prior to use of the tablets. At baseline, and on the 1st, 7th, and 14th day after completing the course of tablets, the subjects were assessed for their organoleptic test (OLT) scores, volatile sulfur compound (VSC) levels, and tongue coating scores (TCS). During the course, all subjects kept their routine oral care habits without scraping their tongue coating. Plaque index, probing depth, and bleeding index were recorded at baseline and at the completion of the trial. On the 1st day following the end of tablet use, the OLT scores and VSC levels had significantly decreased in the test group when compared with the baseline values (P = 0.001 and P = 0.012). The TCS in the test group were also significantly decreased (P = 0.05). At days 7 and 14, the OLT scores in the test group were still significantly lower than the baseline levels (P = 0.006 and P = 0.039 respectively). However, there were no statistical differences with OLT, VSC, and TCS between the test group and the placebo group by analysis of multi-level regression model. The use of S. salivarius K12 did not have significant effect on halitosis with tongue coating cause when the tongue coating was not physically or chemically pre-treated, which implies removing tongue coating is required before Streptococcus salivarius K12 use.
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Affiliation(s)
- Lu He
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
| | - Hongjiang Yang
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
- Department of Stomatology, Aerospace Center Hospital, Beijing, 100049, People's Republic of China
| | - Ziyuan Chen
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China
| | - Xiangying Ouyang
- Department of Periodontology, Peking University School and Hospital of Stomatology, Beijing, 100081, People's Republic of China.
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Papamitsou T, Morsi-Yeroyannis A, Papanastasiou A, Bakalopoulos N, Dietrich EM, Karachrysafi S, Toskas A, Mareti E, Morsi-Yeroyanni A, Sioga A. Bisphosphonate's Effect on Tongue Mucosa: An Experimental Electron Microscopy Study. Medicina (Kaunas) 2020; 56:E51. [PMID: 31991568 PMCID: PMC7073723 DOI: 10.3390/medicina56020051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/17/2020] [Accepted: 01/19/2020] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND OBJECTIVES Bisphosphonates (BPs) are selective inhibitors of osteoclasts, used for the treatment of bone disorders. The objective of this study is to investigate the possible effects of BPs on the tongue's mucosa. MATERIALS AND METHODS Specimens of the tongue of 20 female 12-month old Wistar rats were taken. Ten were used as control group, while in the remaining alendronate (Fosamax, Merck) was administered per os from 13 weeks. Observation of the harvested samples was made by Transmission Electron Microscopy (TEM). RESULTS In the experimental group, focal alterations were observed to various extent in all specimens. The basement membrane was intact. Furthermore, an increase at the intercellular space was observed, predominantly at the middle layer, and the desmosomes were disorganized. In the lamina propria focal edema was observed. CONCLUSIONS Investigation on the effect of BPs on the tongue's mucosa through TEM hasn't been documented in the past. According to our results, BPs seem to cause mild mucosal lesions on the tongue.
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Affiliation(s)
- Theodora Papamitsou
- Laboratory of Histology-Embryology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (T.P.); (A.T.)
| | - Antonios Morsi-Yeroyannis
- Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.M.-Y.); (A.P.); (N.B.); (A.M.-Y.)
| | - Anastasios Papanastasiou
- Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.M.-Y.); (A.P.); (N.B.); (A.M.-Y.)
| | - Nikolaos Bakalopoulos
- Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.M.-Y.); (A.P.); (N.B.); (A.M.-Y.)
| | - Eva-Maria Dietrich
- Department of Oral and Maxillofacial Surgery, University Hospital of Erlangen, 91054 Erlangen, Germany;
| | - Sofia Karachrysafi
- Department of Ophthalmology of General Hospital G. Papanikolaou, 57010 Thessaloniki, Greece;
| | - Alexandros Toskas
- Laboratory of Histology-Embryology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (T.P.); (A.T.)
| | - Evangelia Mareti
- 2nd Department of Obstretics and Gynecology, General Hospital Hippokration, Aristotle University of Thessaloniki, 54642 Thessaloniki, Greece;
| | - Anastasia Morsi-Yeroyanni
- Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.M.-Y.); (A.P.); (N.B.); (A.M.-Y.)
| | - Antonia Sioga
- Laboratory of Histology-Embryology, Faculty of Medicine, School of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (T.P.); (A.T.)
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Kattaia AAA, Selim AO, Selim SA, Abd El-Baset SA. Epidermal growth factor attenuates lingual papillae lesions in a rat model of sialoadenectomy. Tissue Cell 2019; 63:101319. [PMID: 32223947 DOI: 10.1016/j.tice.2019.101319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 01/20/2023]
Abstract
Salivary epidermal growth factor (EGF) plays an important role in the maintenance of the oral and gastro-esophageal mucosa. Sialoadenectomy delays healing of oral wounds and affects lingual papillae. In this work, we aimed to determine the effect of EGF deficiency induced by sialoadenectomy and evaluate the effect of exogenous EGF administration on the lingual papillae and taste buds in rats. Thirty male adult Wistar albino rats were equally divided into 3 groups; sham-operated control group, sialoadenectomy group and group of sialoadenectomy + EGF. EGF was given 8 weeks after sialoadenectomy in a dose of 1 μg /ml/day in drinking water for 2 weeks. The anterior two-thirds of the tongue was dissected and cut longitudinally into two halves; one half for light microscope and the other for electron microscope examinations. Saliva and blood were collected to determine salivary and plasma EGF. Our results revealed that sialoadenectomy significantly reduced plasma and saliva levels of EGF which resulted in severe disruption of the architecture of lingual papillae. These changes were effectively improved by the exogenous EGF administration. In conclusion, EGF supplementation reversed the effects of sialoadenectomy and restored almost normal architecture of lingual papillae and taste buds.
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Affiliation(s)
- Asmaa A A Kattaia
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Egypt
| | - Assmaa O Selim
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Egypt
| | - Sally A Selim
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Egypt
| | - Samia A Abd El-Baset
- Department of Histology and Cell Biology, Faculty of Medicine, Zagazig University, Egypt.
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Sollai G, Melis M, Mastinu M, Pani D, Cosseddu P, Bonfiglio A, Crnjar R, Tepper BJ, Tomassini Barbarossa I. Human Tongue Electrophysiological Response to Oleic Acid and Its Associations with PROP Taster Status and the CD36 Polymorphism ( rs1761667). Nutrients 2019; 11:E315. [PMID: 30717278 PMCID: PMC6412840 DOI: 10.3390/nu11020315] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/07/2019] [Accepted: 01/30/2019] [Indexed: 12/28/2022] Open
Abstract
The perception of fat varies among individuals and has also been associated with CD36 rs1761667 polymorphism and genetic ability to perceive oral marker 6-n-propylthiouracil (PROP). Nevertheless, data in the literature are controversial. We present direct measures for the activation of the peripheral taste system in response to oleic acid by electrophysiological recordings from the tongue of 35 volunteers classified for PROP taster status and genotyped for CD36. The waveform of biopotentials was analyzed and values of amplitude and rate of potential variation were measured. Oleic acid stimulations evoked positive monophasic potentials, which represent the summated voltage change consequent to the response of the stimulated taste cells. Bio-electrical measurements were fully consistent with the perceived intensity during stimulation, which was verbally reported by the volunteers. ANOVA revealed that the amplitude of signals was directly associated, mostly in the last part of the response, with the CD36 genotypes and PROP taster status (which was directly associated with the density of papillae). The rate of potential variation was associated only with CD36, primarily in the first part of the response. In conclusion, our results provide direct evidence of the relationship between fat perception and rs1761667 polymorphism of the CD36 gene and PROP phenotype.
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Affiliation(s)
- Giorgia Sollai
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA 09042, Italy.
| | - Melania Melis
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA 09042, Italy.
| | - Mariano Mastinu
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA 09042, Italy.
| | - Danilo Pani
- Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d'Armi, Cagliari 09123, Italy.
| | - Piero Cosseddu
- Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d'Armi, Cagliari 09123, Italy.
| | - Annalisa Bonfiglio
- Department of Electrical and Electronic Engineering, University of Cagliari, Piazza d'Armi, Cagliari 09123, Italy.
| | - Roberto Crnjar
- Department of Biomedical Sciences, University of Cagliari, Monserrato, CA 09042, Italy.
| | - Beverly J Tepper
- Department of Food Science, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ 08901-8520, USA.
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Gonçalves MLL, da Mota ACC, Deana AM, Guedes GH, Cavalcante LADS, Prates RA, Horliana ACRT, Pavani C, Motta LJ, Bitencourt GDB, Fernandes KPS, Salgueiro MDCC, Mesquita-Ferrari RA, da Silva DFT, França CM, Bussadori SK. Photodynamic therapy with Bixa orellana extract and LED for the reduction of halitosis: study protocol for a randomized, microbiological and clinical trial. Trials 2018; 19:590. [PMID: 30373650 PMCID: PMC6206672 DOI: 10.1186/s13063-018-2913-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Accepted: 09/10/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Halitosis is an unpleasant breath odour that can interfere with the professional life, social life and quality of life of people who suffer from it. A modality of treatment that has been increasing in dentistry is antimicrobial photodynamic therapy (aPDT). Bixa orellana, popularly known as "urucum" is a plant native to Brazil. The seeds are used to produce a dye that is largely used in the food, textile, paint and cosmetic industries. The aim of this study is to verify whether aPDT with Bixa orellana extract and blue light-emitting diodes (LEDs) is effective in reducing halitosis. This method will also be compared with tongue scraping, the most commonly used conventional method for tongue coating removal, and the association of both methods will be evaluated. METHODS/DESIGN A randomized clinical trial will be conducted at the dental clinic of the Universidade Nove de Julho. Thirty-nine patients will be divided by block randomization into three groups (n = 13) according to the treatment to be performed. In Group 1, tongue scraping will be performed by the same operator in all patients for analysis of the immediate results. Patients will also be instructed on how to use the scraper at home. Group 2 will be treated with aPDT with Bixa orellana extract and the LED light curing device: Valo Cordless Ultradent®. Six points in the tongue dorsum with a distance of 1 cm between them will be irradiated. The apparatus will be pre-calibrated at wavelength 395-480 nm for 20 s and 9.6 J per point. In Group 3, patients will be submitted to the tongue scraping procedure, as well as to the previously explained aPDT. Oral air collection with the Oral Chroma™ and microbiological collections of the tongue coating shall be done before, immediately after and 7 days after treatment for comparison. DISCUSSION Halitosis treatment is a topic that still needs attention. The results of this trial could support decision-making by clinicians regarding aPDT using blue LEDs for treating halitosis on a daily basis, as most dentists already have this light source in their offices. TRIAL REGISTRATION ClinicalTrials.gov, NCT03346460 . Registered on 17 November 2017.
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Affiliation(s)
- Marcela Leticia Leal Gonçalves
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | - Ana Carolina Costa da Mota
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | - Alessandro Melo Deana
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | - Guelton Hirano Guedes
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | | | - Renato Araújo Prates
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | | | - Christiane Pavani
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | - Lara Jansiski Motta
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | - Greice de Brito Bitencourt
- Rehabilitation Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | - Kristianne Porta Santos Fernandes
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | | | - Raquel Agnelli Mesquita-Ferrari
- Rehabilitation Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | - Daniela Fátima Teixeira da Silva
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
| | - Cristiane Miranda França
- Biomaterials and Biomechanics, School of Dentistry, Oregon Health and Science University, 2730 S.W. Moody Ave, Portland, OR 97201 USA
| | - Sandra Kalil Bussadori
- Biophotonics Applied to Health Sciences, Universidade Nove de Julho, Vergueiro Street, 235/249, Liberdade, São Paulo, SP ZIP 01504-001 Brazil
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12
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Wang Q, Zhao Y, Li H, Li P, Wang J. Vascular Complications After Chin Augmentation Using Hyaluronic Acid. Aesthetic Plast Surg 2018; 42:553-559. [PMID: 29260270 DOI: 10.1007/s00266-017-1036-3] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2017] [Accepted: 11/13/2017] [Indexed: 11/29/2022]
Abstract
Vascular complications after hyaluronic acid (HA) filling of the chin have rarely been reported. In this report, two cases of vascular occlusion after HA augmentation of the mentum are presented. The first case involved local skin necrosis that resulted from a massive microcirculatory embolism and/or external compression of the chin skin microvasculature. The second case involved vascular compromise in the tongue that resulted from HA injection in the chin. The diagnosis was established on the basis of interventional angiography findings. Concerning the pathogenesis, we hypothesized that the filler embolus flowed into the branches of the deep lingual artery through the rich vascular anastomoses among the submental, sublingual, and deep lingual arteries, after being accidentally injected into the submental artery (or its branches). Level of Evidence V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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Affiliation(s)
- Qianwen Wang
- Head and Neck Aesthetic and Plastic Surgery Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33# Badachu Road, Shijingshan District, Beijing, 100144, China
| | - Yongliang Zhao
- Private Clinic of Cosmetic Surgery, 1# Hongqiao North Street, Xingqing District, Yinchuan City, Ningxia Hui Autonomous Region, China
| | - Hui Li
- Private Clinic of Cosmetic Surgery, 29# Shijingshan Road, Shijingshan District, Beijing, China
| | - Peng Li
- Vascular Surgery Department of Beijing Hospital, 1# Dahua Road, Dongdan, Dongcheng District, Beijing, China
| | - Jiaqi Wang
- Head and Neck Aesthetic and Plastic Surgery Center, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, 33# Badachu Road, Shijingshan District, Beijing, 100144, China.
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13
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El-Sayed NM, Ahmed AAM, Selim MAA. Cytotoxic effect of chlorpyrifos is associated with activation of Nrf-2/HO-1 system and inflammatory response in tongue of male Wistar rats. Environ Sci Pollut Res Int 2018; 25:12072-12082. [PMID: 29453720 DOI: 10.1007/s11356-018-1391-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2017] [Accepted: 01/25/2018] [Indexed: 05/24/2023]
Abstract
Repeated administration of chlorpyrifos (CPF), an organophosphate pesticide, can increase the risk of oral cytotoxicity. The current study was designed to assess the mechanism by which CPF mediates its cytotoxic effect on lingual mucosa of rats. Twenty-four male Wistar rats were used in the present study and divided into three groups: group I: healthy rats (negative control), group II: rats treated with CPF 1/40 LD50 (3.375 mg/kg, orally/daily) for 28 days, group III: rats treated with CPF 1/10 LD50 (13.5 mg/kg, orally/daily) for 28 days. At the end of the experiment, all rats were sacrificed by cervical dislocation under ketamine anesthesia. Tongue samples were dissected out at their base for detection of heme oxygenase-1 (HO-1) and nuclear erythroid 2-related factor 2 (Nrf-2) by western blotting and histopathological and electron microscopic studies. Immunostaining was used to determine cleaved caspase 3 and the nuclear factor kappa B (NF-κB) localization. Structural and ultrastructural examination of treated lingual mucosa with CPF demonstrated degenerative changes that involved both the dorsal and ventral surfaces of the tongue as well as the lingual glands. CPF-treated rats demonstrated a significant increase in the levels of pro-inflammatory cytokines such as interleukin-1β (IL-1β) and tumor necrosis factor (TNF-α) in addition to a significant dose-dependent activation of NF-κB and cleaved caspase 3. Furthermore, CPF activated HO-1 and Nrf-2 pathway in a dose-dependent manner. In conclusion, this data suggests that the CPF-induced cytotoxicity may be explained by NF-κB activated inflammatory cascade. In addition, CPF triggers an adaptive activation of Nrf-2/HO-1 pathway.
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Affiliation(s)
- Norhan M El-Sayed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Suez Canal University, Ismailia, 41522, Egypt.
| | - Amal A M Ahmed
- Department of Cytology and Histology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt
| | - Manar A A Selim
- Department of Oral Biology, Faculty of Dentistry, Suez Canal University, Ismailia, Egypt
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14
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Matrka MC, Cimperman KA, Haas SR, Guasch G, Ehrman LA, Waclaw RR, Komurov K, Lane A, Wikenheiser-Brokamp KA, Wells SI. Dek overexpression in murine epithelia increases overt esophageal squamous cell carcinoma incidence. PLoS Genet 2018; 14:e1007227. [PMID: 29538372 PMCID: PMC5884580 DOI: 10.1371/journal.pgen.1007227] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 04/04/2018] [Accepted: 01/26/2018] [Indexed: 12/12/2022] Open
Abstract
Esophageal cancer occurs as either squamous cell carcinoma (ESCC) or adenocarcinoma. ESCCs comprise almost 90% of cases worldwide, and recur with a less than 15% five-year survival rate despite available treatments. The identification of new ESCC drivers and therapeutic targets is critical for improving outcomes. Here we report that expression of the human DEK oncogene is strongly upregulated in esophageal SCC based on data in the cancer genome atlas (TCGA). DEK is a chromatin-associated protein with important roles in several nuclear processes including gene transcription, epigenetics, and DNA repair. Our previous data have utilized a murine knockout model to demonstrate that Dek expression is required for oral and esophageal SCC growth. Also, DEK overexpression in human keratinocytes, the cell of origin for SCC, was sufficient to cause hyperplasia in 3D organotypic raft cultures that mimic human skin, thus linking high DEK expression in keratinocytes to oncogenic phenotypes. However, the role of DEK over-expression in ESCC development remains unknown in human cells or genetic mouse models. To define the consequences of Dek overexpression in vivo, we generated and validated a tetracycline responsive Dek transgenic mouse model referred to as Bi-L-Dek. Dek overexpression was induced in the basal keratinocytes of stratified squamous epithelium by crossing Bi-L-Dek mice to keratin 5 tetracycline transactivator (K5-tTA) mice. Conditional transgene expression was validated in the resulting Bi-L-Dek_K5-tTA mice and was suppressed with doxycycline treatment in the tetracycline-off system. The mice were subjected to an established HNSCC and esophageal carcinogenesis protocol using the chemical carcinogen 4-nitroquinoline 1-oxide (4NQO). Dek overexpression stimulated gross esophageal tumor development, when compared to doxycycline treated control mice. Furthermore, high Dek expression caused a trend toward esophageal hyperplasia in 4NQO treated mice. Taken together, these data demonstrate that Dek overexpression in the cell of origin for SCC is sufficient to promote esophageal SCC development in vivo.
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Affiliation(s)
- Marie C. Matrka
- Division of Oncology, Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Katherine A. Cimperman
- Division of Oncology, Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Sarah R. Haas
- Division of Oncology, Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Geraldine Guasch
- Centre de Recherche en Cancérologie de Marseille (CRCM), Inserm, U1068, CNRS, UMR7258, Institute Paoli-Calmettes, Aix-Marseille University, Marseille, France
| | - Lisa A. Ehrman
- Division of Experimental Hematology & Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Ronald R. Waclaw
- Division of Experimental Hematology & Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Kakajan Komurov
- Division of Experimental Hematology & Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
| | - Adam Lane
- Division of Bone Marrow Transplant and Immune Deficiency, Cancer and Blood Diseases Institute, Cincinnati Children’s Hospital Medical Center, Cincinnati, OH, United States of America
| | - Kathryn A. Wikenheiser-Brokamp
- Division of Pathology & Laboratory Medicine and Perinatal Institute Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center and Department of Pathology & Laboratory Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, United States of America
| | - Susanne I. Wells
- Division of Oncology, Cancer and Blood Diseases Institute, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
- Division of Experimental Hematology & Cancer Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, United States of America
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15
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Benderro GF, Gamble J, Schiefer MA, Baskin JZ, Hernandez Y, Strohl KP. Hypoglossal nerve stimulation in a pre-clinical anesthetized rabbit model relevant to OSA. Respir Physiol Neurobiol 2018; 250:31-38. [PMID: 29410358 DOI: 10.1016/j.resp.2018.01.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 01/27/2018] [Accepted: 01/29/2018] [Indexed: 01/06/2023]
Abstract
We tested the functional effects of hypoglossal (CNXII) stimulation in the anesthetized rabbit before and after injections of saline into the tongue base to obstruct the airway. Data (n = 6) show little or no effect of CN XII trunk stimulation; however, medial branch stimulation (20-100 Hz; 50-500 μs pulse width, and incremental increases from 10 μA) reduced upper airway resistance. Medial branch stimulation was less effective in reducing resistance than anterior advancement of the hyoid. Endoscopic viewing (n-3) of the retropalate showed this region as the narrowest and dynamically changed by anterior hyoid displacement, with less evident effects than CNXII stimulation. We conclude that under these conditions CNXII medial branch stimulation reduces airway resistance, especially after induced obstruction.
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Affiliation(s)
- Girriso F Benderro
- Department of Medicine, Division of Puelmonary, Critical Care, and Sleep Medicine, Case Western Reserve University, Cleveland, OH, United States
| | - Jenniffer Gamble
- Department of Medicine, Division of Puelmonary, Critical Care, and Sleep Medicine, Case Western Reserve University, Cleveland, OH, United States; Louis Stokes Cleveland VA Medical Center, Cleveland, OH, United States
| | - Matthew A Schiefer
- Department of Medicine, Division of Puelmonary, Critical Care, and Sleep Medicine, Case Western Reserve University, Cleveland, OH, United States; Louis Stokes Cleveland VA Medical Center, Cleveland, OH, United States
| | - Jonathan Z Baskin
- Department of Medicine, Division of Puelmonary, Critical Care, and Sleep Medicine, Case Western Reserve University, Cleveland, OH, United States; Louis Stokes Cleveland VA Medical Center, Cleveland, OH, United States
| | - Yeritza Hernandez
- Louis Stokes Cleveland VA Medical Center, Cleveland, OH, United States
| | - Kingman P Strohl
- Department of Medicine, Division of Puelmonary, Critical Care, and Sleep Medicine, Case Western Reserve University, Cleveland, OH, United States; Louis Stokes Cleveland VA Medical Center, Cleveland, OH, United States.
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16
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Ahmed KA, Nichols AL, Honavar J, Dransfield MT, Matalon S, Patel RP. Measuring nitrate reductase activity from human and rodent tongues. Nitric Oxide 2017; 66:62-70. [PMID: 28390999 DOI: 10.1016/j.niox.2017.04.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 04/03/2017] [Accepted: 04/05/2017] [Indexed: 12/14/2022]
Abstract
Reduction of salivary nitrate to nitrite by oral microbes expressing nitrate-reductase has emerged as a crucial pathway in systemic NO homeostasis in humans and other mammals. Selective depletion of oral microbes prevents dietary nitrate-dependent lowering of blood pressure, inhibition of platelet aggregation and ischemic injury. To date, most studies interrogate enterosalivary nitrate reduction by following changes in saliva or plasma nitrite and NO-signaling (functional) end points. Little is known about whether, and if so how, nitrate-reductase enzymatic activity per se (i.e. independent of nitrate levels) is a variable and may account for any individual to individual variation. Here, we describe a minimally invasive protocol that allows for NR activity determination from human, rat and mouse tongue scrapes/swabs. We validate this method using selective application of antiseptic agents to the distal tongue surface which decreased NR activity by >80% and show that bacterial number is a significant variable in measured NR activities between males and females. Also, we show that NR activity is >80% lower in smokers (humans) and after bromine gas exposure (mice), suggesting that exposure to inhaled reactive substances inhibit NR activity identifying a potentially new mechanism by which environmental toxicants promote dysfunction in NO-bioavailability. The described method will facilitate studies testing whether NR specific activity is a variable in different pathophysiologic settings, and in turn how this activity modulates enterosalivary nitrate-reduction.
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Affiliation(s)
- Khandaker A Ahmed
- Department of Pathology and Center for Free Radical Biology, University of Alabama at Birmingham, United States
| | - Alexandria L Nichols
- Department of Pathology and Center for Free Radical Biology, University of Alabama at Birmingham, United States
| | - Jaideep Honavar
- Department of Pathology and Center for Free Radical Biology, University of Alabama at Birmingham, United States
| | - Mark T Dransfield
- Department of Medicine, Pulmonary, Allergy and Critical Care, University of Alabama at Birmingham, United States
| | - Sadis Matalon
- Anesthesiology and Pulmonary Injury Repair Center, University of Alabama at Birmingham, United States
| | - Rakesh P Patel
- Department of Pathology and Center for Free Radical Biology, University of Alabama at Birmingham, United States.
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17
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Jung JK, Jung HI, Neupane S, Kim KR, Kim JY, Yamamoto H, Cho SW, Lee Y, Shin HI, Sohn WJ, Kim JY. Involvement of PI3K and PKA pathways in mouse tongue epithelial differentiation. Acta Histochem 2017; 119:92-98. [PMID: 27939449 DOI: 10.1016/j.acthis.2016.11.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 10/28/2016] [Accepted: 11/30/2016] [Indexed: 12/30/2022]
Abstract
In mice, tongue epithelial differentiation is mainly regulated by the interactions among various signalling molecules including Fgf signalling pathways. However, the subsequent signalling modulations for epithelial maturation, initiated by Fgf signalling, remain to be elucidated. Therefore, we employed an in vitro tongue organ cultivation system along with the applications of various pharmacological inhibitors against the intracellular signalling molecules of Fgf signalling pathways, including H89, LY294002, PD98059, and U0126. Following treatments with LY294002 and H89, inhibitors for PI3K and PKA, respectively, the decreased thickness of the tongue epithelium was observed along with the alteration in cell proliferative and apoptotic patterns. Meanwhile, cultivated tongues treated with MEK inhibitor U0126 or PD98059 showed significantly decreased cell proliferation in the tongue epithelium and the mesenchyme. Based on these results, we suggest that the tongue epithelium is differentiated into multiple epithelial cell layers via the PI3K and PKA pathways in tissue-specific manner during the epithelial-mesenchymal interactions.
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Affiliation(s)
- Jae-Kwang Jung
- Department of Oral Medicine, School of Dentistry, IHBR, Kyungpook National University, Daegu, South Korea
| | - Hye-In Jung
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, South Korea
| | - Sanjiv Neupane
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, South Korea
| | - Ki-Rim Kim
- Department of Dental Hygiene, IHBR, Kyungpook National University, Daegu, South Korea
| | - Ji-Youn Kim
- Department of Dental Hygiene, Gachon University College of Health Science, Incheon, Seoul, South Korea
| | - Hitoshi Yamamoto
- Department of Histology and Developmental Biology, Tokyo Dental College, Tokyo, Japan
| | - Sung-Won Cho
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Yonsei University College of Dentistry, Seoul, South Korea
| | - Youngkyun Lee
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, South Korea
| | - Hong-In Shin
- Department of Oral Pathology and Regenerative Medicine, School of Dentistry, Daegu, South Korea
| | - Wern-Joo Sohn
- IHBR, Kyungpook National University, Daegu, South Korea.
| | - Jae-Young Kim
- Department of Biochemistry, School of Dentistry, IHBR, Kyungpook National University, Daegu, South Korea.
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18
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Honda M, Baad-Hansen L, Iida T, Dagsdóttir LK, Komiyama O, Kawara M, Svensson P. Perceptual distortion of the tongue by lingual nerve block and topical application of capsaicin in healthy women. Clin Oral Investig 2016; 21:2045-2052. [PMID: 27830370 DOI: 10.1007/s00784-016-1994-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 10/31/2016] [Indexed: 11/24/2022]
Affiliation(s)
- Mika Honda
- Department of Oral Function and Rehabilitation, Nihon University School of Dentistry at Matsudo, 2-870-1, Sakaecho-nishi, Matsudo, Chiba, 271-8587, Japan.
- Section of Orofacial Pain and Jaw Function, Department of Dentistry, Aarhus University, Aarhus, Denmark.
| | - Lene Baad-Hansen
- Section of Orofacial Pain and Jaw Function, Department of Dentistry, Aarhus University, Aarhus, Denmark
- Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark
| | - Takashi Iida
- Department of Oral Function and Rehabilitation, Nihon University School of Dentistry at Matsudo, 2-870-1, Sakaecho-nishi, Matsudo, Chiba, 271-8587, Japan
| | - Lilja Kristín Dagsdóttir
- Section of Orofacial Pain and Jaw Function, Department of Dentistry, Aarhus University, Aarhus, Denmark
- Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark
| | - Osamu Komiyama
- Department of Oral Function and Rehabilitation, Nihon University School of Dentistry at Matsudo, 2-870-1, Sakaecho-nishi, Matsudo, Chiba, 271-8587, Japan
| | - Misao Kawara
- Department of Oral Function and Rehabilitation, Nihon University School of Dentistry at Matsudo, 2-870-1, Sakaecho-nishi, Matsudo, Chiba, 271-8587, Japan
| | - Peter Svensson
- Section of Orofacial Pain and Jaw Function, Department of Dentistry, Aarhus University, Aarhus, Denmark
- Scandinavian Center for Orofacial Neurosciences (SCON), Aarhus, Denmark
- Department of Dental Medicine, Karolinska Institutet, Huddinge, Sweden
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Lin J, Lin Y, Fan L, Kuang W, Zheng L, Wu J, Shang P, Wang Q, Tan J. miR-203 inhibits cell proliferation and promotes cisplatin induced cell death in tongue squamous cancer. Biochem Biophys Res Commun 2016; 473:382-7. [PMID: 26946357 DOI: 10.1016/j.bbrc.2016.02.105] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 02/23/2016] [Indexed: 11/15/2022]
Abstract
Oral squamous cell carcinoma (OSCC) is one of the most common types of the head and neck cancer. Chemo resistance of OSCC has been identified as a substantial therapeutic hurdle. In this study, we analyzed the role of miR-203 in the OSCC and its effects on cisplatin-induced cell death in an OSCC cell line, Tca8113. There was a significant decrease of miR-203 expression in OSCC samples, compared with the adjacent normal, non-cancerous tissue. After 3 days cisplatin treatment, the survived Tca8113 cells had a lower expression of miR-203 than that in the untreated control group. In contrast, PIK3CA showed an inverse expression in cancer and cisplatin survived Tca8113 cells. Transfection of Tca8113 cells with miR-203 mimics greatly reduced PIK3CA expression and Akt activation. Furthermore, miR-203 repressed PIK3CA expression through targeting the 3'UTR. Restoration of miR-203 not only suppressed cell proliferation, but also sensitized cells to cisplatin induced cell apoptosis. This effect was absent in cells that were simultaneously treated with PIK3CA RNAi. In summary, these findings suggest miR-203 plays an important role in cisplatin resistance in OSCC, and furthermore delivery of miR-203 analogs may serve as an adjuvant therapy for OSCC.
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Affiliation(s)
- Jiong Lin
- Guangdong Provincial Key Laboratory of Stomatology, Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Yao Lin
- Guangdong Provincial Key Laboratory of Stomatology, Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Li Fan
- Department of Pharmaceutical Analysis, School of Pharmacy, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, 510055, China
| | - Wei Kuang
- Department of Stomatology, Guangzhou General Hospital of Guangzhou Military Command, 111 Liuhua Road, Guangzhou, 510010, China
| | - Liwei Zheng
- State Key Laboratory of Oral Diseases, Sichuan University, Wuhou District, Chengdu, 610041, China
| | - Jiahua Wu
- Guangdong Provincial Key Laboratory of Stomatology, Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China
| | - Peng Shang
- Patient-specific Orthopedic Technology Research Center in GuangDong Research Centre for Neural Engineering, 1068 Xueyuan Boulevard, University Town of Shenzhen, Xili, Nanshan, Shenzhen, 518055, China
| | - Qiaofeng Wang
- Department of Pharmaceutical Chemistry, School of Pharmacy, The Fourth Military Medical University, Xi'an, Shanxi, 710032, China
| | - Jiali Tan
- Guangdong Provincial Key Laboratory of Stomatology, Department of Orthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, 510055, China.
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20
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Sakagami H, Sheng H, Ono K, Komine Y, Miyadai T, Terada Y, Nakada D, Tanaka S, Matsumoto M, Yasui T, Watanabe K, Junye J, Natori T, Suguro-Kitajima M, Oizumi H, Oizumi T. Anti-Halitosis Effect of Toothpaste Supplemented with Alkaline Extract of the Leaves of Sasa senanensis Rehder. In Vivo 2016; 30:107-111. [PMID: 26912820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
BACKGROUND Previous studies have shown activity against viruses, bacteria, inflammation and oral lichenoid dysplasia of alkaline extract of the leaves of Sasa senanensis Rehder (SE), suggesting its possible application to oral diseases. In the present study, we performed a small-scale clinical test to investigate whether SE is effective against halitosis and in oral bacterial reduction. MATERIALS AND METHODS A total of 12 volunteers participated in this study. They brushed their teeth immediately after meals three times each day with SE-containing toothpaste (SETP) or placebo toothpaste. Halitosis in the breath and bacterial number on the tongue were measured by commercially available portable apparatuses at a specified time in the morning. RESULTS Some relationship was observed between halitosis and bacterial number from each individual, especially when those with severe halitosis were included. Repeated experiments demonstrated that SETP significantly reduced halitosis but not the bacterial number on the tongue. CONCLUSION The present study provides for the first time the basis for anti-halitosis activity of SE.
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Affiliation(s)
| | - Hong Sheng
- Meikai University School of Dentistry, Saitama, Japan
| | - Koki Ono
- Meikai University School of Dentistry, Saitama, Japan
| | - Yusuke Komine
- Meikai University School of Dentistry, Saitama, Japan
| | | | - Yuji Terada
- Meikai University School of Dentistry, Saitama, Japan
| | | | - Shoji Tanaka
- Meikai University School of Dentistry, Saitama, Japan
| | | | | | | | - Jia Junye
- Daiwa Biological Research Institute Co., Ltd., Kanagawa, Japan
| | - Takenori Natori
- Daiwa Biological Research Institute Co., Ltd., Kanagawa, Japan
| | | | - Hiroshi Oizumi
- Daiwa Biological Research Institute Co., Ltd., Kanagawa, Japan
| | - Takaaki Oizumi
- Daiwa Biological Research Institute Co., Ltd., Kanagawa, Japan
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21
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Davydenko V, Nidzelskiy M, Starchenko I, Davydenko A, Kuznetsov V. [MORPHOLOGICAL FEATURES OF RAT MUCOUS MEMBRANE OF THE TONGUE EARLY AFFECTED BY ACRYLIC RESIN MONOMER]. Georgian Med News 2016:102-107. [PMID: 27119844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Base materials, made on the basis of various derivatives of acrylic and methacrylic acids, have been widely used in prosthetic dentistry. Free monomer, affecting the tissues of prosthetic bed and the whole body, is always found in dentures. Therefore, study of the effect of acrylic resins' monomer on mucous membrane of the tongue is crucial. Rat tongue is very similar to human tongue, and this fact has become the basis for selecting these animals to be involved into the experiment. The paper presents the findings related to the effect of "Ftoraks" base acrylic resin monomer on the state of rat mucous membrane of the tongue and its regeneration. The microscopy has found that the greatest changes in the mucous membrane of the tongue occur on day 3 and 7 day after applying the monomer and are of erosive and inflammatory nature. Regeneration of tongue epithelium slows down.
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Affiliation(s)
- V Davydenko
- Higher State Educational Establishment of Ukraine "Ukrainian Medical Stomatological Academy", Poltava, Ukraine
| | - M Nidzelskiy
- Higher State Educational Establishment of Ukraine "Ukrainian Medical Stomatological Academy", Poltava, Ukraine
| | - I Starchenko
- Higher State Educational Establishment of Ukraine "Ukrainian Medical Stomatological Academy", Poltava, Ukraine
| | - A Davydenko
- Higher State Educational Establishment of Ukraine "Ukrainian Medical Stomatological Academy", Poltava, Ukraine
| | - V Kuznetsov
- Higher State Educational Establishment of Ukraine "Ukrainian Medical Stomatological Academy", Poltava, Ukraine
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Fakheran Esfahani O, Pouraboutaleb MF, Khorami B. Effect of hydralazine on duration of soft tissue local anesthesia following dental treatment: a randomized clinical trial. Gen Dent 2015; 63:39-42. [PMID: 26325640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Prolonged numbness following routine dental treatments can cause difficulties in speaking and swallowing and may result in inadvertent biting of soft tissues. Local injection of vasodilator agents may represent a solution to this problem. The aim of this study was to evaluate the effect of submucosal injection of hydralazine hydrochloride (HCl) on the duration of oral soft tissue anesthesia after routine dental treatment. This randomized, single-blinded, controlled clinical trial included 50 patients who received inferior alveolar nerve block (2% lidocaine with 1:100,000 epinephrine) for simple restorative treatment. Upon completion of the dental treatment, patients randomly received a hydralazine HCl or sham injection in the same site as the local anesthetic injection. The reversal time to normal sensation of soft tissues (lips, tongue, and perioral skin) was evaluated and reported every 5 minutes by the patients, who followed an assessment protocol that they were taught in advance of treatment. Median recovery times in the hydralazine group and the sham group were 81.4 (SD, 3.6) and 221.8 (SD, 6.3) minutes, respectively. Based on Kaplan-Meier survival analysis, the duration of soft tissue anesthesia in the 2 groups was significantly different (P < 0.0001). By 1 hour after the reversal injection, 76% of subjects receiving hydralazine HCl had returned to normal intraoral and perioral sensation, but none of the subjects in the sham group reported normal sensation. Based on these results, submucosal injection of hydralazine HCl can be considered a safe and effective method to reduce the duration of local anesthetic-induced soft tissue numbness and the related functional problems.
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Pal Choudhuri S, Delay RJ, Delay ER. L-Amino Acids Elicit Diverse Response Patterns in Taste Sensory Cells: A Role for Multiple Receptors. PLoS One 2015; 10:e0130088. [PMID: 26110622 PMCID: PMC4482487 DOI: 10.1371/journal.pone.0130088] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Accepted: 05/15/2015] [Indexed: 12/01/2022] Open
Abstract
Umami, the fifth basic taste, is elicited by the L-amino acid, glutamate. A unique characteristic of umami taste is the response potentiation by 5’ ribonucleotide monophosphates, which are also capable of eliciting an umami taste. Initial reports using human embryonic kidney (HEK) cells suggested that there is one broadly tuned receptor heterodimer, T1r1+T1r3, which detects L-glutamate and all other L-amino acids. However, there is growing evidence that multiple receptors detect glutamate in the oral cavity. While much is understood about glutamate transduction, the mechanisms for detecting the tastes of other L-amino acids are less well understood. We used calcium imaging of isolated taste sensory cells and taste cell clusters from the circumvallate and foliate papillae of C57BL/6J and T1r3 knockout mice to determine if other receptors might also be involved in detection of L-amino acids. Ratiometric imaging with Fura-2 was used to study calcium responses to monopotassium L-glutamate, L-serine, L-arginine, and L-glutamine, with and without inosine 5’ monophosphate (IMP). The results of these experiments showed that the response patterns elicited by L-amino acids varied significantly across taste sensory cells. L-amino acids other than glutamate also elicited synergistic responses in a subset of taste sensory cells. Along with its role in synergism, IMP alone elicited a response in a large number of taste sensory cells. Our data indicate that synergistic and non-synergistic responses to L-amino acids and IMP are mediated by multiple receptors or possibly a receptor complex.
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Affiliation(s)
- Shreoshi Pal Choudhuri
- Department of Biology and Vermont Chemosensory Group, The University of Vermont, Burlington, Vermont, United States of America
| | - Rona J. Delay
- Department of Biology and Vermont Chemosensory Group, The University of Vermont, Burlington, Vermont, United States of America
| | - Eugene R. Delay
- Department of Biology and Vermont Chemosensory Group, The University of Vermont, Burlington, Vermont, United States of America
- * E-mail:
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Glendinning JI, Elson AET, Kalik S, Sosa Y, Patterson CM, Myers MG, Munger SD. Taste responsiveness to sweeteners is resistant to elevations in plasma leptin. Chem Senses 2015; 40:223-31. [PMID: 25740302 DOI: 10.1093/chemse/bju075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
There is uncertainty about the relationship between plasma leptin and sweet taste in mice. Whereas 2 studies have reported that elevations in plasma leptin diminish responsiveness to sweeteners, another found that they enhanced responsiveness to sucrose. We evaluated the impact of plasma leptin on sweet taste in C57BL/6J (B6) and leptin-deficient ob/ob mice. Although mice expressed the long-form leptin receptor (LepRb) selectively in Type 2 taste cells, leptin failed to activate a critical leptin-signaling protein, STAT3, in taste cells. Similarly, we did not observe any impact of intraperitoneal (i.p.) leptin treatment on chorda tympani nerve responses to sweeteners in B6 or ob/ob mice. Finally, there was no effect of leptin treatment on initial licking responses to several sucrose concentrations in B6 mice. We confirmed that basal plasma leptin levels did not exceed 10ng/mL, regardless of time of day, physiological state, or body weight, suggesting that taste cell LepRb were not desensitized to leptin in our studies. Furthermore, i.p. leptin injections produced plasma leptin levels that exceeded those previously reported to exert taste effects. We conclude that any effect of plasma leptin on taste responsiveness to sweeteners is subtle and manifests itself only under specific experimental conditions.
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Affiliation(s)
- John I Glendinning
- Department of Biology, Barnard College, Columbia University, 3009 Broadway New York, NY 10027, USA,
| | - Amanda E T Elson
- Department of Anatomy & Neurobiology, University of Maryland School of Medicine, 20 S. Penn St., Baltimore, MD 21201, USA
| | - Salina Kalik
- Department of Biology, Barnard College, Columbia University, 3009 Broadway New York, NY 10027, USA
| | - Yvett Sosa
- Department of Biology, Barnard College, Columbia University, 3009 Broadway New York, NY 10027, USA
| | - Christa M Patterson
- Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI 48109, USA and
| | - Martin G Myers
- Department of Internal Medicine, Division of Metabolism, Endocrinology, and Diabetes, University of Michigan, Ann Arbor, MI 48109, USA and
| | - Steven D Munger
- Department of Anatomy & Neurobiology, University of Maryland School of Medicine, 20 S. Penn St., Baltimore, MD 21201, USA, Department of Medicine, Division of Endocrinology, Diabetes, and Nutrition, University of Maryland School of Medicine, HH-495, Baltimore, MD 21201, USA
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Javaud N, Charpentier S, Lapostolle F, Lekouara H, Boubaya M, Lenoir G, Mekinian A, Adnet F, Fain O. Angiotensin-converting enzyme inhibitor-induced angioedema and hereditary angioedema: a comparison study of attack severity. Intern Med 2015; 54:2583-8. [PMID: 26466692 DOI: 10.2169/internalmedicine.54.4181] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Objective There appears to be differences in the clinical presentation of hereditary angioedema (HAE) and angiotensin-converting enzyme inhibitor-induced (ACE-I) angioedema (AE). The aim of this study was to compare the clinical characteristics of these two AE forms. Methods We conducted a retrospective study of consecutive patients with HAE or ACE-I AE. The attack characteristics experienced by the patients were compared by a logistic regression analysis using generalized estimating equations. Results A total of 56 patients were included in this study (ACE-I AE, n=25; HAE, n=31). A total of 534 attacks were documented. Severe attacks were more common in the patients who had an acute episode of ACE-I AE than HAE. Swelling of the tongue, lips and larynx were significantly associated with ACE-I AE [OR: 8.70 (95% CI, 1.04-73.70), OR: 20.4 (95% CI, 4.9-84.2) and OR: 7.50 (95% CI, 1.20-48.30), respectively]. Conclusion Swelling of the tongue, lips and larynx are significantly more frequent in drug-induced AE than HAE.
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Affiliation(s)
- Nicolas Javaud
- Emergency Department, Angioedema Reference Center (CRéAk), Public Assistance Hospital of Paris, University Hospital of Jean Verdier, France
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Abzianidze E, Kvaratskhelia E, Tkemaladze T, Kankava K, Gurtskaia G, Tsagareli M. Epigenetic regulation of acute inflammatory pain. Georgian Med News 2014:78-81. [PMID: 25416223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Acute pain is associated with tissue damage, which results in the release of inflammatory mediators. Recent studies point to the involvement of epigenetic mechanisms (DNA methylation) in the development of pain. We have found that during acute inflammatory pain induced by the application of 10% mustard oil on the tongues of rats, levels of DNMT3a and 3b were elevated markedly (36 and 42 % respectively), whereas the level of DNMT1 was not changed significantly. Previous injection of Xefocam with 0,4 mg/kg dose decreased levels of DNMT3a and 3b (25 and 24% respectively). The level of DNMT1 was not changed significantly compared to the control group. The findings support the idea that inhibitors of DNA-methyltransferases could be useful for pain management. Our data suggest that NSAIDs (alone or in combination with DNMT inhibitors) may be proposed as possible epigenetic regulatory agents, which may play a role in epigenetic mechanisms indirectly through altering the activity of inflammatory mediators involved in pain development.
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Affiliation(s)
- E Abzianidze
- Tbilisi State Medical University, Department of Molecular and Medical Genetics; Bakhutashvili Institute of Medical Biotechnology; 3I. Beritashvili Center of Experimental Biomedicine, Department of Pain and Analgesia, Tbilisi, Georgia
| | - E Kvaratskhelia
- Tbilisi State Medical University, Department of Molecular and Medical Genetics; Bakhutashvili Institute of Medical Biotechnology; 3I. Beritashvili Center of Experimental Biomedicine, Department of Pain and Analgesia, Tbilisi, Georgia
| | - T Tkemaladze
- Tbilisi State Medical University, Department of Molecular and Medical Genetics; Bakhutashvili Institute of Medical Biotechnology; 3I. Beritashvili Center of Experimental Biomedicine, Department of Pain and Analgesia, Tbilisi, Georgia
| | - K Kankava
- Tbilisi State Medical University, Department of Molecular and Medical Genetics; Bakhutashvili Institute of Medical Biotechnology; 3I. Beritashvili Center of Experimental Biomedicine, Department of Pain and Analgesia, Tbilisi, Georgia
| | - G Gurtskaia
- Tbilisi State Medical University, Department of Molecular and Medical Genetics; Bakhutashvili Institute of Medical Biotechnology; 3I. Beritashvili Center of Experimental Biomedicine, Department of Pain and Analgesia, Tbilisi, Georgia
| | - M Tsagareli
- Tbilisi State Medical University, Department of Molecular and Medical Genetics; Bakhutashvili Institute of Medical Biotechnology; 3I. Beritashvili Center of Experimental Biomedicine, Department of Pain and Analgesia, Tbilisi, Georgia
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Sakallioglu O. Black tongue due to lansoprazole plus metronidazole. Indian Pediatr 2014; 51:763. [PMID: 25228624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- Onur Sakallioglu
- Department of Pediatrics, Zubeyde Hanim Practicing and Training Hospital, Izmir, Turkey.
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Nagy A, Steele CM, Pelletier CA. Barium versus nonbarium stimuli: differences in taste intensity, chemesthesis, and swallowing behavior in healthy adult women. J Speech Lang Hear Res 2014; 57:758-767. [PMID: 24167232 DOI: 10.1044/2013_jslhr-s-13-0136] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
PURPOSE The authors examined the impact of barium on the perceived taste intensity of 7 different liquid tastant stimuli and the modulatory effect that these differences in perceived taste intensity have on swallowing behaviors. METHOD Participants were 80 healthy women, stratified by age group (<40; >60) and genetic taste status (supertasters; nontasters). Perceived taste intensity and chemesthetic properties (fizziness; burning-stinging) were rated for 7 tastant solutions (each prepared with and without barium) using the general Labeled Magnitude Scale. Tongue-palate pressures and submental surface electromyography (sEMG) were simultaneously measured during swallowing of these same randomized liquids. Path analysis differentiated the effects of stimulus, genetic taste status, age, barium condition, taste intensity, and an effortful saliva swallow strength covariate on swallowing. RESULTS Barium stimuli were rated as having reduced taste intensity compared with nonbarium stimuli. Barium also dampened fizziness but did not influence burning-stinging sensation. The amplitudes of tongue-palate pressure or submental sEMG did not differ when swallowing barium versus nonbarium stimuli. CONCLUSIONS Despite impacting taste intensity, the addition of barium to liquid stimuli does not appear to alter behavioral parameters of swallowing. Barium solutions can be considered to elicit behaviors that are similar to those used with nonbarium liquids outside the assessment situation.
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Chen YW, Lin GJ, Hueng DY, Huang SH, Chia WT, Shieh YS, Ma KH, Sytwu HK. Enhanced anti-tumor activity of triptolide in combination with irradiation for the treatment of oral cancer. Planta Med 2014; 80:255-261. [PMID: 24510366 DOI: 10.1055/s-0033-1360315] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Advanced oral cancer has a poor prognosis because of the lack of an effective treatment. We explored the efficiency of combined treatment with triptolide and ionizing radiation for treating oral cancer. Human tongue cancer cells were treated with triptolide, ionizing radiation, or triptolide plus ionizing radiation. Cell proliferation, cell cycle arrest, and apoptotic influences were analyzed by FACS and immunohistochemistry. Tumor potency was examined in an in vivo human tongue cancer cells xenograft mouse model. Our results demonstrated that triptolide caused a marked reduction in colony number that was further enhanced with increasing doses of ionizing radiation. Triptolide increased apoptosis and decreased the expression of anti-apoptotic proteins. In vivo, combination treatment synergistically reduced tumor weight and volume possibly via the induction of apoptosis and reduction in anti-apoptotic protein expression. In conclusion, triptolide plus ionizing radiation treatment had synergistic anti-tumor effects, especially in vivo, and may be a promising combined modality therapy for advanced oral cancer.
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Affiliation(s)
- Yuan-Wu Chen
- School of Dentistry, National Defense Medical Center, Taipei, Taiwan
| | - Gu-Jiun Lin
- Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan
| | - Dong-Yuan Hueng
- Department of Neurological Surgery, Tri-Service General Hospital, Taipei, Taiwan
| | - Shing-Hwa Huang
- Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan
| | - Wei-Tso Chia
- Orthopaedic Department, National Taiwan University Hospital, Hsin-Chu Branch, Taipei, Taiwan
| | - Yi-Shing Shieh
- School of Dentistry, National Defense Medical Center, Taipei, Taiwan
| | - Kuo-Hsing Ma
- Department of Biology and Anatomy, National Defense Medical Center, Taipei, Taiwan
| | - Huey-Kang Sytwu
- Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
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Carrard VC, Pires AS, Mendez M, Pasquali MAB, Badauy CM, Lauxen IS, Moreira JCF, Sant'ana Filho M. Exploring the mechanisms of alcohol-related damage in oral mucosa - is oxidative stress associated with the increase in cell proliferation in rat tongue epithelium? Pharm Biol 2013; 51:160-169. [PMID: 23116298 DOI: 10.3109/13880209.2012.715171] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
CONTEXT Alcohol consumption has been related to a cell proliferation increase in oral epithelium but its mechanism remains unclear. OBJECTIVE The aim of this study was to investigate whether oxidative stress parameters are implicated in the induction of cell proliferation in rat tongue epithelium after different times of chronic alcohol consumption. MATERIALS AND METHODS Cell proliferation was assessed in tongue epithelium using AgNOR (argyrophilic proteins related to active nucleolar organizer regions) quantification. Oxidative stress parameters [lipid peroxidation, protein carbonyls, superoxide dismutase activity and catalase (CAT) activity and immunocontent] and Nrf2 immunocontent were quantified in tongue homogenates. RESULTS AND DISCUSSION Mean AgNOR numbers (mAgNOR) per nucleus was 2.22 ± 0.30 in ventral tongue epithelium after 120 days of alcohol consumption (vs. 1.87 ± 0.18 for control animals and 1.91 ± 0.23 for animals treated with alcohol for 60 days) indicating cell proliferation increase (p < 0.05, ANOVA followed by Tukey post hoc). Interestingly, 60 days of alcohol consumption induced changes in oxidative stress parameters, but no alteration in cell proliferation. Vitamin E co-treatment was conduced in order to evaluate its possible protective effects. The 120 day Tween + vitamin E + alcohol treatment induced an increase in mAgNORs when compared to the Tween + vitamin E treated group (respectively 2.10 ± 0.30 vs. 1.77 ± 0.11, p < 0.05, ANOVA followed by Tukey post hoc), showing that vitamin E co-treatment had no protective effects. In addition, an inverse association was observed between CAT activity and AgNORs quantity (R = -0.32; p < 0.05, Person's correlation) as well as the possible involvement of Nrf2 in alcohol-related damage. CONCLUSIONS Our findings suggest that the increase in cell proliferation associated with alcohol-related damage has no direct relation with an imbalance in oxidative parameters. In contrast, our results indicate that hydrogen peroxide may be implicated in cellular signaling during proliferation in the oral mucosa.
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Affiliation(s)
- Vinicius C Carrard
- Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos, Porto Alegre, Brazil.
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Wilhelm D, Himmelmann A, Krause C, Wilhelm KP. Short term clinical efficacy of new meridol HALITOSIS tooth & tongue gel in combination with a tongue cleaner to reduce oral malodor. J Clin Dent 2013; 24:12-19. [PMID: 23547489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE This study evaluated the short term efficacy of tongue cleaning with meridol HALITOSIS tooth & tongue gel in comparison to mechanical tongue cleaning alone and untreated after five and 60 minutes in patients with an oral cause of bad breath. METHODS Fifty-four male and female subjects with an intra-oral cause of halitosis (organoleptic ratings > or = 2 and volatile sulphur compounds > or = 50 ppb) participated in this crossover study and were assigned to six different treatment sequences (ABC, ACB, BAC, BCA, CAB, CBA) with no treatment (A), mechanical tongue cleaning alone (B), and tongue cleaning with tooth & tongue gel applied to the tongue cleaner (C). Efficacy was assessed by organoleptic ratings and volatile sulphur compound measurements five and 60 minutes after treatment RESULTS Cleaning the tongue with tooth & tongue gel applied onto the tongue cleaner resulted in significantly reduced organoleptic ratings (p < 0.001 for the five-minute assessment; p = 0.001 for the 60-minute assessment) and volatile sulphur compounds (H2S + CH3SH: p = 0.005 for the five-minute assessment; p = 0.003 for the 60-minute assessment) compared to no treatment at the five- and 60-minute assessment time points, while mechanical tongue cleaning alone was less effective in reducing organoleptic ratings (p = 0.008 for the five-minute assessment; p = 0.144 for the 60-minute assessment) and volatile sulphur compounds (H2S + CH3SH: p = 0.261 for the five-minute assessment; p = 0.365 for the 60-minute assessment). CONCLUSIONS Single tongue cleaning with meridol HALITOSIS tooth & tongue gel had a positive effect on halitosis five and 60 minutes after treatment. Tongue cleaning with tooth & tongue gel in combination with other oral hygiene procedures is a promising approach to control halitosis.
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Affiliation(s)
- D Wilhelm
- proDERM Institute for Applied Dermatological Research GmbH, Schenefeld, Germany
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Furusaka T, Asakawa T, Tanaka A, Matsuda H, Ikeda M. Efficacy of multidrug superselective intra-arterial chemotherapy (docetaxel, cisplatin, and 5-fluorouracil) using the Seldinger technique for tongue cancer. Acta Otolaryngol 2012; 132:1108-14. [PMID: 22998559 DOI: 10.3109/00016489.2012.684702] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONCLUSION This therapy produced better results than intravenous multidrug chemotherapy (CF therapy, CPF therapy, etc.) or superselective intra-arterial chemotherapy (SIC) alone with cisplatin (CDDP) and 5-fluorouracil (5-FU). Primary tumor may be controlled by SIC alone in cases of T2 and many cases of T3 tumors, and by the combination of SIC and concurrent radiotherapy in cases of T3 and many cases of T4a. Cervical lymph node metastasis was treated with neck dissection in some patients. The results indicate that this therapy is useful to control primary tumor without resection for organ preservation. OBJECTIVES This therapy was intended to control primary tumor without resection for better quality of life (QOL). METHODS A total of 45 patients with primary squamous cell carcinoma of the tongue were included in the study. SIC with docetaxel, cisplatin, and 5-FU was administered. RESULTS In terms of the primary response of primary tumor, 43 patients achieved a clinical complete response (CR). Moreover, in these patients no cancer cells were histopathologically found by biopsy, resulting in a response rate of 100% and a CR rate of 95.6%. During the median follow-up period of 1779 days (59 months) (range 110-3752 days), the 5-year survival rate and organ preservation rate were 89.8% and 80.7%, respectively.
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Affiliation(s)
- Tohru Furusaka
- Department of Otolaryngology-Head and Neck Surgery, School of Medicine, Nihon University, Itabashi-ku, Tokyo, Japan.
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Garcia Martins RH, Marques Madeira SL, Fabro AT, Rocha NDS, de Oliveira Semenzati G, Alves KF. Effects to exposure of tobacco smoke and alcohol on the tongue and pharynx of rats. Inhal Toxicol 2012; 24:153-60. [PMID: 22324907 DOI: 10.3109/08958378.2011.649190] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
AIM To study in rats the effects of exposure to tobacco and alcohol on the mucosa of the tongue and pharynx. MATERIAL AND METHODS Forty adult Wistar rats were allocated into four groups of 10 animals each: GI (control), food and water "ad libitum"; GII (alcohol), 30% of ethanol diluted in drinking water and food "ad libitum"; GIII (tobacco), exposure to the smoke of 10 cigarettes/day, food and water "ad libitum"; GIV (alcohol and tobacco), simultaneous exposure to both agents. After 260 days, the animals were sacrificed. Tongue and pharynx were removed for histopathological analysis. RESULTS GI had the lowest tongue and pharynx histological scores. In GII, GIII, and GIV tongue samples revealed: apical cell hyperplasia (GII: 60%, GIII: 30%, GIV: 20%), basal cell hyperplasia (GII: 60%, GIII: 40%), hyperkeratosis (GII: 70%, GIII: 30%, GIV: 30%), dysplasia (GII: 60%, GIII: 60%, GIV: 50%), and apoptosis (GII: 60%, GIII: 40%, GIV: 60%). Pharynx samples revealed: apical cell hyperplasia (GII: 40%, GIII: 30%, GIV: 70%), basal cell hyperplasia (GII: 30%, GIII: 40%, GIV: 40%), hyperkeratosis (GII: 50%, GIII: 80%, GIV: 40%), and dysplasia (GII: 50%, GIII: 80%, GIV: 50%). Carcinoma in situ was detected in both sites. CONCLUSIONS Alcohol and tobacco led to significant tongue and pharyngeal lesions that ranged from benign events to severe dysplasia. These findings confirm the deleterious effects of alcohol and tobacco on the airway mucosa.
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Affiliation(s)
- Regina Helena Garcia Martins
- Oftalmology, Otorrinolaryngology, and Head and Neck Surgery, Botucatu Medical School, São Paulo State University, Botucatu, São Paulo
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Steele CM, van Lieshout PHHM, Pelletier CA. The influence of stimulus taste and chemesthesis on tongue movement timing in swallowing. J Speech Lang Hear Res 2012; 55:262-275. [PMID: 22199186 DOI: 10.1044/1092-4388(2011/11-0012)] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
PURPOSE To explore the influence of taste and trigeminal irritation (chemesthesis) on durational aspects of tongue movement in liquid swallowing, controlling for the influence of perceived taste intensity. METHOD Electromagnetic midsagittal articulography was used to trace tongue movements during discrete liquid swallowing with 5 liquids: water, 3 moderate concentration tastants without odor (sweet, sour, sweet-sour), and a high concentration of citric acid (sour taste plus chemesthesis). Participants were 33 healthy adults in 2 gender-balanced, age-stratified groups (under/over 50). Perceived taste intensity was measured using the Generalized Labeled Magnitude Scale (Bartoshuk, 2000; Bartoshuk et al., 2004). Tongue movement sequencing and durations of the composite tongue movement envelope and component events (rise phase, location of first movement peak, release phase) were calculated. RESULTS No obligate sequence of tongue segment movement was observed. Overall durations and the timing of the first movement peak were significantly longer with water than with the moderate concentration of sweet-sour liquid. Perceived taste intensity did not modulate stimulus effects in a significant way. The expected pattern of shorter movement durations with the high concentration of citric acid was not seen. CONCLUSIONS A chemesthetic-taste stimulus of high citric acid did not influence the durations of tongue movements compared with those seen during the swallowing of moderate concentration tastants and water.
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Gavrilovic IT, Balagula Y, Rosen AC, Ramaswamy V, Dickler MN, Dunkel IJ, Lacouture ME. Characteristics of oral mucosal events related to bevacizumab treatment. Oncologist 2012; 17:274-8. [PMID: 22282905 DOI: 10.1634/theoncologist.2011-0198] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Bevacizumab, a monoclonal antibody targeting a vascular endothelial growth factor (VEGF) protein, has been reported to induce mucosal toxicities. However, the clinical characteristics of these particular toxicities have not been well characterized. We aimed at providing a detailed clinical description of signs and symptoms limited to the tongue mucosa in patients treated with bevacizumab. METHODS A retrospective review of medical records and clinical photographs was performed with specific attention to clinical presentation, evolution, associated symptoms, concomitant medications, and treatment methods. RESULTS In total, four patients presented to the dermatology service with clinical findings characterized by multifocal, erythematous circinate and serpiginous erosions on the dorsal tongue surrounded by white hyperkeratotic rims that were temporally related to bevacizumab therapy. Associated increased sensitivity to spicy foods was frequently observed. CONCLUSION These characteristic clinical findings are consistent with geographic tongue. However, large prospective evaluations are necessary to confirm this potential relationship. If bevacizumab is indeed associated with geographic tongue, increased awareness may result in improved reporting and characterization of this particular adverse event.
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Affiliation(s)
- Igor T Gavrilovic
- Department of Neurology, Memorial Sloan-Kettering Cancer Center, New York, New York 10022, USA
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Wang WR, Lin R, Zhang H, Lin QQ, Yang LN, Zhang KF, Ren F. The effects of Buyang Huanwu Decoction on hemorheological disorders and energy metabolism in rats with coronary heart disease. J Ethnopharmacol 2011; 137:214-220. [PMID: 21605653 DOI: 10.1016/j.jep.2011.05.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Revised: 05/03/2011] [Accepted: 05/08/2011] [Indexed: 05/30/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Buyang Huanwu Decoction (BYHWD), a traditional Chinese medicine (TCM) formula, has been recognized as a clinical treatment for coronary heart disease (CHD) with qi deficiency and blood stasis syndrome. The effects of BYHWD on hemorheological disorders and energy metabolism in CHD with qi deficiency and blood stasis syndrome are still unclear. AIM OF THE STUDY To investigate whether the ameliorative effects of BYHWD on CHD rats with qi deficiency and blood stasis syndrome are associated with the regulation of hemorheological disorders and energy metabolism. MATERIALS AND METHODS The rats were lavaged with 25.68, 12.84 and 6.42 g/kg BYHWD (g weight of mixed crude drugs/kg body weight), respectively, once a day for 21 days. The body weight, exhaustive swimming time and tongue characters were observed and recorded. The whole blood viscosity and plasma viscosity were determined by hematology analyzer. The level of fibrinogen (Fbg) in plasma was determined by using Fbg assay kit. The platelet aggregation induced by adenosine diphosphatase was measured by semi-automatic whole blood platelet analyzer. The level of blood glucose (BG) was determined by LifeScan. The activity of Na(+)-K(+)-ATPase in heart tissues was detected by spectrophotometer. RESULTS BYHWD improved the exterior signs of qi deficiency and blood stasis syndrome in rats with CHD, including the body weight, exhaustive swimming time and tongue quality. The whole blood viscosity in rats treated with 25.68 g/kg BYHWD decreased at the shear rate of 10s(-1) (P<0.05) and the plasma viscosity decreased in rats treated with 25.68 and 12.84 g/kg BYHWD (P<0.05). The plasma Fbg level and the platelet aggregation decreased in rats treated with 25.68 g/kg BYHWD (P<0.01). The results also revealed that the BG level decreased and the Na(+)-K(+)-ATPase activity in heart tissues increased in rats treated with 25.68 and 12.84 g/kg BYHWD (P<0.01). CONCLUSION The results suggest that the ameliorative effects of BYHWD on CHD rats with qi deficiency and blood stasis syndrome are mediated by the improvement of hemorheological disorders and energy metabolism.
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Affiliation(s)
- Wei-Rong Wang
- Department of Pharmacology, Key Laboratory of Environment and Genes Related to Diseases, School of Medicine, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
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Saunders TR, Psaltis G, Weston JF, Yanase RR, Rogy SS, Ghalie RG. In-practice evaluation of OraVerse for the reversal of soft-tissue anesthesia after dental procedures. Compend Contin Educ Dent 2011; 32:58-62. [PMID: 21755896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
This study investigated the pattern of use, dentist evaluation, and patient assessment of OraVerse (OV), a solution of phentolamine mesylate formulated for intraoral submucosal injection and used for the reversal of soft anesthesia after dental procedures. Participants were provided the drug for treatment of up to 10 patients each and agreed to complete a 26-item evaluation questionnaire at the end of the clinical assessment. Data were available from 51 dentists reporting on 390 patients 4 to 90 years of age. A total of 394 dental procedures were performed: 224 (57%) in the mandible and 170 (43%) in the maxilla. Local anesthetics most frequently used were lidocaine/epinephrine (66.4%) and articaine/epinephrine (23.6%). In 81.5% of cases, OV was administered after restorative procedures. This OV dose was given as one-half, one, and two cartridges in 11.8%, 76.7%, and 10.3% of patients, respectively. An adverse reaction at the injection site was reported in 19 patients (4.9%). The median times to return to normal after injection were 60 minutes for lip sensation, 57.5 minutes for tongue sensation, and 60 minutes for oral function. Patients reported reduced duration of oral numbness (92%) and improved dental experiences (84%) after use. A total of 83% of patients said they would recommend the medication to others and 79% said they would opt for OV in the future. Dentists reported that the medication addressed an existing need (86%), met expectations (82%), was a practice differentiator (55%) and a practice builder (45%), and improved scheduling (29%). In this in-practice clinical evaluation, times to return to normal oral sensation and function after OV administration were consistent with those reported in randomized clinical studies. Both patient and dentist satisfaction rates were high.
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Affiliation(s)
- Timothy R Saunders
- Department of Restorative Sciences, Herman Ostrow School of Dentistry of the University of Southern California, Los Angeles, California, USA
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Hartinger M, Tripoliti E, Hardcastle WJ, Limousin P. Effects of medication and subthalamic nucleus deep brain stimulation on tongue movements in speakers with Parkinson's disease using electropalatography: a pilot study. Clin Linguist Phon 2011; 25:210-230. [PMID: 21158488 DOI: 10.3109/02699206.2010.521877] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Parkinson's disease (PD) affects speech in the majority of patients. Subthalamic nucleus deep brain stimulation (STN-DBS) is particularly effective in reducing tremor and rigidity. However, its effect on speech is variable. The aim of this pilot study was to quantify the effects of bilateral STN-DBS and medication on articulation, using electropalatography (EPG). Two patients, PT1 and PT2, were studied under four conditions: on and off medication and ON and OFF stimulation. The EPG protocol consisted of a number of target words with alveolar and velar stops, repeated 10 times in random order. The motor part III of the Unified Parkinson Disease Rating Scale (UPDRS) indicated significantly improved motor scores in the ON stimulation condition in both patients. However, PT1's articulation patterns deteriorated with stimulation whereas PT2 showed improving articulatory accuracy in the same condition. The results revealed different effects of stimulation and medication on articulation particularly with regard to timing. The study quantified less articulatory undershoot for velar stops in comparison to alveolars. Furthermore, the findings provided preliminary evidence that stimulation with medication has a more detrimental effect on articulation than stimulation without medication.
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Affiliation(s)
- Mariam Hartinger
- Speech Science Research Centre, Queen Margaret University, Edinburgh, UK.
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Li Q, Li C, Shen JC, Liu H, Huang M, Zhang XL. [Effect of chronic intermittent hypoxia on mitochondrial function of rat genioglossus cells and intervention role of adiponectin]. Zhonghua Jie He He Hu Xi Za Zhi 2011; 34:21-25. [PMID: 21429414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To investigate the effect of chronic intermittent hypoxia (CIH) on mitochondrial function in genioglossus cells of rats and intervention role of adiponectin (Ad). METHODS Thirty-nine healthy male Wistar rats were randomly divided into 3 groups, normal control (NC) group, CIH group and CIH + Ad group with 13 rats in each. Rats in NC group were kept breathing normal air, while rats in both CIH and CIH + Ad groups experienced the same CIH environment (CIH 8 h/day for successive 5 weeks). However, rats in CIH + Ad group was given intravenous Ad supplement at the dosage of 10 µg, twice a week for successive 5 weeks. At the end of experiment (day 35), the levels of plasma adiponectin, mitochondrial membrane potential activities of respiratory chain complexes I and IV in mitochondrion of genioglossus cells were compared among different groups. RESULTS Serum Ad level was significantly lower in CIH group than that in NC group [(1108 ± 112) ng/ml vs (2241 ± 121) ng/ml, P < 0.01]. Serum Ad level in CIH + Ad group [(1889 ± 119) ng/ml] was significantly higher than that in NC group but lower than that in CIH group (all P < 0.01). Mitochondrial membrane potential was significantly lower in CIH group than that in NC group [(1.82 ± 0.11) vs (2.09 ± 0.14), P < 0.01]. Mitochondrial membrane potential in CIH + Ad group (1.98 ± 0.09) was higher than that in CIH group but lower than that in NC group (all P < 0.05). The concentrations of mitochondrial respiratory chain complexes I and IV in CIH group (35.68 ± 1.73) µmol×min(-1)×mg(-1) and (2.37 ± 0.11) nmol×min(-1)×mg(-1), respectively) were the lowest but became higher from CIH + Ad group [(37.18 ± 1.95) µmol×min(-1)×mg(-1) and (2.49 ± 0.09) nmol×min(-1)×mg(-1), respectively] to NC group (39.02 ± 1.38) µmol×min(-1)×mg(-1) and (2.81 ± 0.12) nmol×min(-1)×mg(-1), respectively), with a significant difference between NC and CIH groups (P < 0.01), between CIH + Ad and CIH groups (P < 0.05), as well as between CIH + Ad and NC groups (P < 0.05). CONCLUSION CIH could lead to hypoadiponectinemia and impaired mitochondrial function in genioglossus cells of rats. Since such changes could be partially improved by supplement of adiponectin, it was suggested that hypoadiponectinemia might be involved in CIH-induced impairment of genioglossus energy metabolism.
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Affiliation(s)
- Qin Li
- Department of Respirology, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, China
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Leont'eva IV, Bykov VL. [Morpho-functional characteristic of oral mucosal epithelium after treatment with a cytostatic drug]. Morfologiia 2011; 139:52-59. [PMID: 21539087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The effect of cytostatic drug cyclophosphamide (CY) on lingual epithelium was studied in 90 female mice using histological, morphometric, quantitative histochemical and immunohistochemical methods. CY (400 mg/kg) was injected intraperitoneally three times with a 48 h interval. Material was obtained 2 days after injections and 10-20 days after their discontinuation. CY treatment was shown to result in the damage of both surface epithelium of the tongue and the epithelium of minor lingual salivary glands. Damage to the surface epithelium was more pronounced on the ventral surface of the tongue and was associated mainly with the disturbances of its proliferation. Changes were less severe on the dorsal surface and were seen as the disturbances of epithelial differentiation and desquamation. Glandular epithelium was damaged to a lesser extent than the surface one, with serocytes being more sensitive to the cytotoxic injury than mucocytes. After cytostatic drug discontinuation, the tendency for the normalization of the epithelial characteristics was noted. Most persistent changes in the surface epithelium were found on the dorsal surface of the tongue and in the glandular epithelium--in the serous secretory portions of the salivary glands.
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Chang NW, Tsai MH, Lin C, Hsu HT, Chu PY, Yeh CM, Chiu CF, Yeh KT. Fenofibrate exhibits a high potential to suppress the formation of squamous cell carcinoma in an oral-specific 4-nitroquinoline 1-oxide/arecoline mouse model. Biochim Biophys Acta Mol Basis Dis 2010; 1812:558-64. [PMID: 21081159 DOI: 10.1016/j.bbadis.2010.11.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2010] [Revised: 11/03/2010] [Accepted: 11/09/2010] [Indexed: 01/09/2023]
Abstract
The excessive use of areca nut and/or tobacco may induce the production of free radicals and reactive oxygen species, which affect the lipid contents of the cell membrane and are possibly involved in tumorigenic processes in the oral cavity. The aim of this study was to investigate the therapeutic efficacy of fenofibrate (0.1% or 0.3%, w/w), a ligand of the peroxisome proliferator-activated receptor alpha (PPARα), in a 4-nitroquinoline 1-oxide (4-NQO)/arecoline-induced oral cancer mouse model. The carcinogen, 4-NQO/arecoline, was administrated to C57BL/6JNarl mice for 8weeks followed by fenofibrate treatment for 12 or 20weeks. After 28weeks, changes in serum lipids, the multiplicity of tumor lesions, and tumor sizes were determined together with changes in the immunohistochemical expressions of PPARα, acetyl-coenzyme A carboxylase (ACC), the epidermal growth factor receptor (EGFR), and cyclooxygenase-2 (COX2). The results showed that when compared to the 4-NQO/arecoline only group, 0.3% fenofibrate treatment increased serum total cholesterol, low-density lipoprotein cholesterol (LDL-C), and high-density lipoprotein cholesterol (HDL-C) levels. 0.3% fenofibrate treatment suppressed the incidence rate of tongue lesions, reduced the multiplicity of squamous cell carcinoma (SCC), decreased the tumor size, and increased the immunoreactivity of EGFR and COX2 in oral dysplasia but decreased EGFR and COX2 expressions in SCC. These findings indicated that fenofibrate reduced the tumor incidence rate and suppressed the tumor progression into SCC and that these molecular events might be linked to the EGFR and COX2 regulatory pathways. We suggest that fenofibrate provides a new strategy for preventing oral tumor progression.
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Affiliation(s)
- Nai Wen Chang
- Department of Biochemistry, College of Medicine, China Medical University, Taichung, Taiwan, ROC
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Abstract
Phentolamine mesylate, at dosages from 0.4 to 0.8 mg in adults and adolescents and at dosages from 0.2 to 0.4 mg in children aged 4 to 11 years, has been proven to be safe and effective for the reversal of soft tissue anesthesia (lip and tongue numbness) and the associated functional deficits resulting from a local dental anesthetic injection containing a vasoconstrictor. Its ability to block a-adrenergic receptors on blood vessels induces vasodilation and enhances the redistribution of the local anesthetic away from the injection site. The low dosages administered for dental local anesthetic reversal in all likelihood accounts for the lack of significant cardiovascular effects that are associated with the medical use of the drug for hypertensive conditions associated with catecholamine excess.
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Affiliation(s)
- Elliot V Hersh
- Department of Oral Surgery and Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA 19104-6030, USA.
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Kinomoto T, Sawada M, Ohnishi Y, Yamaguchi T, Tsuge S, Ogawa S, Washizuka M, Minaguchi J, Mera Y, Takehana K. Effects of polaprezinc on morphological change of the tongue in zinc-deficient rats. J Oral Pathol Med 2010; 39:617-23. [PMID: 21054547 DOI: 10.1111/j.1600-0714.2010.00926.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Toshiko Kinomoto
- Central Research Laboratories, Zeria Pharmaceutical Co., Ltd., Saitama, Japan
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Augustine JJ. Down in the mouth. Sipping a soda has unintended consequences for an unwary picnicker. EMS Mag 2010; 39:18-20. [PMID: 20857824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Tirapelli C, Landi F, Ribas JP, Panzeri H, Lara EH. Evaluating an experimental dentifrice containing chloramine-T: a preliminary study. Oral Health Prev Dent 2010; 8:375-381. [PMID: 21180675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
PURPOSE The aim of the present study was to evaluate the clinical efficacy of an experimental dentifrice (CH) containing an antimicrobial agent (1% chloramine-T). MATERIALS AND METHODS A clinical, fully randomised, double-blind comparative study was designed for 30 selected patients aged 15 to 50 years, with no periodontal disease, decay or other oral diseases, good general health and the presence of dental plaque and sulcus bleeding. Baseline Turesky modified plaque index (PI) and sulcus bleeding index (SBI) were scored for all patients. Volunteers randomly received the experimental dentifrice (CH) or a commercial-brand dentifrice containing triclosan (TR). Both dentifrices were provided in identical, number-labelled tubes, and the subjects were instructed to use the supplied dentifrice only for their usual oral hygiene, three times a day for a duration of 7 days. After 7-day use of dentifrices, the PI and SBI were assessed again. The data obtained were subjected to the Kruskal– Wallis test, followed by Dunn's post hoc test. RESULTS After 7-day use of dentifrices, the PI scores diminished significantly for both evaluated dentifrices. The SBI values decreased significantly for both experimental and commercial-brand dentifrices. CONCLUSIONS Both dentifrices reduced PI and SBI. By comparing the experimental and gold-standard dentifrice, it was found that there was no statistically significant difference between the PI and SBI scores after their use, suggesting that they exerted a similar effect on the oral health indexes.
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Affiliation(s)
- Camila Tirapelli
- Department of Dental Materials and Prosthesis, University of Sao Paulo, Brazil.
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Inagawa M, Ichinohe T, Kaneko Y. Felypressin, but not epinephrine, reduces myocardial oxygen tension after an injection of dental local anesthetic solution at routine doses. J Oral Maxillofac Surg 2009; 68:1013-7. [PMID: 20031290 DOI: 10.1016/j.joms.2009.07.080] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2009] [Revised: 04/29/2009] [Accepted: 07/26/2009] [Indexed: 11/18/2022]
Abstract
PURPOSE The aim of this study was to evaluate the effect of epinephrine (Epi) or felypressin (Fely) contained in dental local anesthetics on myocardial oxygen balance. MATERIALS AND METHODS Male Japanese White tracheotomized rabbits were anesthetized with isoflurane. Three doses of 0.18, 0.36, and 0.72 mL of 2% lidocaine hydrochloride containing 1:80,000 Epi or 3% prilocaine hydrochloride containing Fely 0.03 IU/mL were injected into the rabbit tongue muscle. These doses were equivalent to 2, 4, and 8 of dental local anesthetic cartridges in humans weighing 50 kg by body weight correction, respectively. Heart rate, blood pressure, aortic blood flow, myocardial tissue blood flow, and myocardial tissue oxygen tension were continuously monitored. Data were recorded immediately before and 10, 20, 30, and 60 minutes after the injection. RESULTS Heart rate decreased in the Fely group. Systolic blood pressure increased in the Epi group, and diastolic blood pressure increased in both groups. Aortic blood flow and myocardial tissue blood flow increased, whereas myocardial tissue oxygen tension did not change in the Epi group. In contrast, aortic blood flow, myocardial tissue blood flow, and myocardial tissue oxygen tension decreased in the Fely group. CONCLUSION It is suggested that Fely, but not Epi, decreases myocardial oxygen tension and aggravates myocardial oxygen demand/supply balance even after an injection of dental local anesthetic solution at routine doses.
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Affiliation(s)
- Motoaki Inagawa
- Department of Dental Anesthesiology, Tokyo Dental College, Tokyo, Japan.
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Sohrabi M, Soleimani J, Roshangar L, Vatansever S, Arbabi F, Khaki AA, Abbasi MM, Dustar Y, Javadzadeh Y. The effect of dietary and topical celecoxib on 4-nitroquinoline-1-oxide-induced lingual epithelium alternations in rat. J PAK MED ASSOC 2009; 59:769-774. [PMID: 20361677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
OBJECTIVE To compare the preventive effect of dietary and topical Celecoxib (CCB), a potent inhibitor of COX-2 on 4-NQO-induced tongue SCC in rat. METHODS Fifty male Sprague Dawley adult 3- 3.5 months old rats were used as animal model in this study. The tongue SCC was induced by a daily administration of 30 ppm 4-NQO, in drinking water, for 8 months. The rats in case groups received dietary or topical CCB. Tongue Specimens were prepared for histopathological and immunohistochemical (Ki-67) staining and or TUNEL assay were examined. Values are expressed as mean +/- SEM and analyzed with Npar Kruscal Wallis and one-way ANOVA tests. p < 0.05 was considered significant. RESULTS The incidence of tongue precancer lesions, judged by morphological and morhometrical criteria and apoptosis/proliferation ratio, was significantly (p < 0.01) reduced by CCB. The effect of topical CCB use, at high doses, was comparable to the effect of dietary CCB. CONCLUSION Both topical and dietary CCB have inhibitory effect on 4-NQO induced SCC on tongue. The effect of CCB is probably mediated by suppression of cell proliferation and induction of apoptosis.
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Affiliation(s)
- Maryam Sohrabi
- Department of Anatomical Sciences, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
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Martins RA, Gomes GADS, Aguiar O, Ribeiro DA. Biomonitoring of oral epithelial cells in petrol station attendants: comparison between buccal mucosa and lateral border of the tongue. Environ Int 2009; 35:1062-1065. [PMID: 19559482 DOI: 10.1016/j.envint.2009.06.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Revised: 05/27/2009] [Accepted: 06/01/2009] [Indexed: 05/28/2023]
Abstract
Owing to the influence of geno- and cytotoxicity on chemical carcinogenesis, studies have demonstrated that petroleum derivatives are able to induce genetic damage and cellular death with conflicting results so far. The aim of the present study was to comparatively evaluate DNA damage (micronucleus) and cellular death (pyknosis, karyolysis and karyorrhexis) in exfoliated oral mucosa cells from gas petrol attendants using two different anatomic buccal sites: cheek mucosa and lateral border of the tongue. A total of 23 gas petrol attendants and 23 health controls (non-exposed individuals) were included in this setting. Individuals had epithelial cells from cheek and lateral border of the tongue mechanically exfoliated, placed in fixative and dropped in clean slides which were checked for the above nuclear phenotypes. The results pointed out significant statistical differences (p<0.05) of micronucleated oral mucosa cells from gas petrol attendants for both oral sites evaluated. In the same way, petroleum derivate exposure was able to increase other nuclear alterations closely related to cytotoxicity such as karyorrhexis, pyknosis and karyolysis, being the most pronunciated effects as those found in the lateral border of the tongue. No interaction was observed between smoking and petroleum exposure. In summary, these data indicate that gas petrol attendants comprise a high risk group for DNA damage and cellular death. It seems that the lateral border of the tongue is a more sensitive site to geno- and cytotoxic insult induced by petroleum derivates.
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Affiliation(s)
- Renato A Martins
- Department of Biosciences, Federal University of Sao Paulo, UNIFESP, 11060-001, Santos, SP, Brazil
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