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Borg-Bartolo R, Roccuzzo A, Molinero-Mourelle P, Schimmel M, Gambetta-Tessini K, Chaurasia A, Koca-Ünsal RB, Tennert C, Giacaman R, Campus G. Global prevalence of edentulism and dental caries in middle-aged and elderly persons: A systematic review and meta-analysis. J Dent 2022; 127:104335. [PMID: 36265526 DOI: 10.1016/j.jdent.2022.104335] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/16/2022] [Accepted: 10/14/2022] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE The aim of the study was to analyze data collected from studies worldwide on the prevalence of edentulism and dental caries, in community-dwellers aged ≥ 45 years. DATA Inclusion criteria; participants aged ≥ 45 years, community-dwellers. Exclusion criteria; participants aged < 45 years, in nursing homes, data obtained from dental clinics or pre-2005. The quality assessment tool by The National Heart, Lung and Blood Institute for Observational Cohort and Cross-sectional studies was used. Meta-analysis using the random-effects model (95% confidence interval) was done with data on participants who were edentulous and/or had active dental caries and stratified by regions of the world, age and Gross National Income per capita. Limitations in the data arose from several factors such as design of the studies included differences in socioeconomic status and access to health care among different countries. SOURCES Embase, MEDLINE via Pubmed and Scopus, manual searches, from January 2016, restricted to English. Experts from different countries were contacted to identify National oral health surveys (NOHS) conducted from 2010 onwards. STUDY SELECTION Eighty-six papers and seventeen NOHS were selected for data extraction. Majority of the studies (n = 69) were cross-sectional and of fair quality. 1.1%-70%, 4.9% - 98% prevalence of edentulism and dental caries, respectively. 22%, 45% estimated random-effects pooled prevalence of edentulism and dental caries, respectively. CONCLUSIONS Within the limitations of this study, the findings indicate that untreated dental caries and tooth loss are prevalent on a global level with wide variations among different countries, age groups and socioeconomic status. CLINICAL SIGNIFICANCE The findings demonstrate the reality of the new cohort of older adults, with higher tooth retention implying more dental caries incidence and the need for different care strategies to ensure better oral health. Large variations and difficulty in making comparisons among different countries highlight the need for more standardized, regular research.
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Affiliation(s)
- R Borg-Bartolo
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, Bern 3012, Switzerland.
| | - A Roccuzzo
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, Bern 3012, Switzerland; Department of Periodontology, School of Dental Medicine, University of Bern, Switzerland.
| | - P Molinero-Mourelle
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland
| | - M Schimmel
- Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine, University of Bern, Bern, Switzerland; Division of Gerodontology and Removable Prosthodontics, University Clinics of Dental Medicine, University of Geneva, Geneva, Switzerland
| | - K Gambetta-Tessini
- Cariology Unit, Department of Oral Rehabilitation, University of Talca, Chile
| | - A Chaurasia
- Faculty of Dental Sciences, King George's Medical, India
| | - R B Koca-Ünsal
- Department of Periodontology, Faculty of Dentistry, University of Kyrenia, Cyprus
| | - C Tennert
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, Bern 3012, Switzerland
| | - R Giacaman
- Cariology Unit, Department of Oral Rehabilitation, University of Talca, Chile
| | - G Campus
- Department of Restorative, Preventive and Pediatric Dentistry, University of Bern, Freiburgstrasse 7, Bern 3012, Switzerland; Department of Surgery, Microsurgery and Medicine Sciences, School of Dentistry, University of Sassari, Italy.
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Woelber JP, Bremer K, Vach K, König D, Hellwig E, Ratka-Krüger P, Al-Ahmad A, Tennert C. Erratum to: An oral health optimized diet can reduce gingival and periodontal inflammation in humans - a randomized controlled pilot study. BMC Oral Health 2016; 16:109. [PMID: 27716249 PMCID: PMC5053186 DOI: 10.1186/s12903-016-0304-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 09/20/2016] [Indexed: 11/10/2022] Open
Affiliation(s)
- J P Woelber
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center - University of Freiburg, Hugstetter Str. 55, Freiburg, Germany.
| | - K Bremer
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center - University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
| | - K Vach
- Department of Medical Biometry and Statistics, Medical Center - University of Freiburg, Freiburg, Germany
| | - D König
- Institute of Sports and Sports Science, Medical Center - University of Freiburg, Freiburg, Germany
| | - E Hellwig
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center - University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
| | - P Ratka-Krüger
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center - University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
| | - A Al-Ahmad
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center - University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
| | - C Tennert
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center - University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
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Woelber JP, Bremer K, Vach K, König D, Hellwig E, Ratka-Krüger P, Al-Ahmad A, Tennert C. An oral health optimized diet can reduce gingival and periodontal inflammation in humans - a randomized controlled pilot study. BMC Oral Health 2016; 17:28. [PMID: 27460471 PMCID: PMC4962497 DOI: 10.1186/s12903-016-0257-1] [Citation(s) in RCA: 95] [Impact Index Per Article: 11.9] [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: 05/25/2016] [Accepted: 07/15/2016] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND The aim of this pilot study was to investigate the effects of four weeks of an oral health optimized diet on periodontal clinical parameters in a randomized controlled trial. METHODS The experimental group (n = 10) had to change to a diet low in carbohydrates, rich in Omega-3 fatty acids, and rich in vitamins C and D, antioxidants and fiber for four weeks. Participants of the control group (n = 5) did not change their dietary behavior. Plaque index, gingival bleeding, probing depths, and bleeding upon probing were assessed by a dentist with a pressure-sensitive periodontal probe. Measurements were performed after one and two weeks without a dietary change (baseline), followed by a two week transitional period, and finally performed weekly for four weeks. RESULTS Despite constant plaque values in both groups, all inflammatory parameters decreased in the experimental group to approximately half that of the baseline values (GI: 1.10 ± 0.51 to 0.54 ± 0.30; BOP: 53.57 to 24.17 %; PISA: 638 mm(2) to 284 mm(2)). This reduction was significantly different compared to that of the control group. CONCLUSION A diet low in carbohydrates, rich in Omega-3 fatty acids, rich in vitamins C and D, and rich in fibers can significantly reduce gingival and periodontal inflammation. TRIAL REGISTRATION German Clinical Trials Register; https://www.germanctr.de (DRKS00006301). Registered on 2015-02-21.
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Affiliation(s)
- J. P. Woelber
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center – University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
| | - K. Bremer
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center – University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
| | - K. Vach
- Department of Medical Biometry and Statistics, Medical Center – University of Freiburg, Freiburg, Germany
| | - D. König
- Institute of Sports and Sports Science, Medical Center – University of Freiburg, Freiburg, Germany
| | - E. Hellwig
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center – University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
| | - P. Ratka-Krüger
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center – University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
| | - A. Al-Ahmad
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center – University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
| | - C. Tennert
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Medical Center – University of Freiburg, Hugstetter Str. 55, Freiburg, Germany
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Al-Ahmad A, Bucher M, Anderson AC, Tennert C, Hellwig E, Wittmer A, Vach K, Karygianni L. Antimicrobial Photoinactivation Using Visible Light Plus Water-Filtered Infrared-A (VIS + wIRA) Alters In Situ Oral Biofilms. PLoS One 2015; 10:e0132107. [PMID: 26162100 PMCID: PMC4498738 DOI: 10.1371/journal.pone.0132107] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [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: 04/20/2015] [Accepted: 06/10/2015] [Indexed: 11/18/2022] Open
Abstract
Recently, growing attention has been paid to antimicrobial photodynamic therapy (aPDT) in dentistry. Changing the microbial composition of initial and mature oral biofilm by aPDT using visible light plus water-filtered infrared-A wavelengths (VIS + wIRA) has not yet been investigated. Moreover, most aPDT studies have been conducted on planktonic bacterial cultures. Therefore, in the present clinical study we cultivated initial and mature oral biofilms in six healthy volunteers for 2 hours or 3 days, respectively. The biofilms were treated with aPDT using VIS+wIRA (200 mW cm-2), toluidine blue (TB) and chlorine e6 (Ce6) for 5 minutes. Chlorhexidine treated biofilm samples served as positive controls, while untreated biofilms served as negative controls. After aPDT treatment the colony forming units (CFU) of the biofilm samples were quantified, and the surviving bacteria were isolated in pure cultures and identified using MALDI-TOF, biochemical tests and 16S rDNA-sequencing. aPDT killed more than 99.9% of the initial viable bacterial count and 95% of the mature oral biofilm in situ, independent of the photosensitizer. The number of surviving bacterial species was highly reduced to 6 (TB) and 4 (Ce6) in the treated initial oral biofilm compared to the 20 different species of the untreated biofilm. The proportions of surviving bacterial species were also changed after TB- and Ce6-mediated aPDT of the mature oral biofilm, resulting in a shift in the microbial composition of the treated biofilm compared to that of the control biofilm. In conclusion, aPDT using VIS + wIRA showed a remarkable potential to eradicate both initial and mature oral biofilms, and also to markedly alter the remaining biofilm. This encourages the clinical use of aPDT with VIS + wIRA for the treatment of periimplantitis and periodontitis.
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Affiliation(s)
- A. Al-Ahmad
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Albert-Ludwigs-University, Freiburg, Germany
- * E-mail:
| | - M. Bucher
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Albert-Ludwigs-University, Freiburg, Germany
| | - A. C. Anderson
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Albert-Ludwigs-University, Freiburg, Germany
| | - C. Tennert
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Albert-Ludwigs-University, Freiburg, Germany
| | - E. Hellwig
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Albert-Ludwigs-University, Freiburg, Germany
| | - A. Wittmer
- Institute of Medical Microbiology and Hygiene, Albert-Ludwigs-University, Freiburg, Germany
| | - K. Vach
- Institute for Medical Biometry and Statistics, Center for Medical Biometry and Medical Informatics, Albert-Ludwigs-University, Freiburg, Germany
| | - L. Karygianni
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, Albert-Ludwigs-University, Freiburg, Germany
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Tennert C, Drews AM, Walther V, Altenburger MJ, Karygianni L, Wrbas KT, Hellwig E, Al-Ahmad A. Ultrasonic activation and chemical modification of photosensitizers enhances the effects of photodynamic therapy against Enterococcus faecalis root-canal isolates. Photodiagnosis Photodyn Ther 2015; 12:244-51. [PMID: 25703104 DOI: 10.1016/j.pdpdt.2015.02.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 02/05/2015] [Accepted: 02/09/2015] [Indexed: 01/10/2023]
Abstract
BACKGROUND The aim of this study was to evaluate the effect of photodynamic therapy (PDT) on Enterococcus faecalis biofilms in artificially infected root canals using modified photosensitizers and passive ultrasonic activation. METHODS Two hundred and seventy extracted human teeth with one root canal were instrumented utilizing ProTaper files, autoclaved, infected with E. faecalis T9 for 72 h and divided into different groups: irrigation with 3% sodium hypochlorite (NaOCl), 20% ethylenediaminetetraacetic acid (EDTA), or 20% citric acid, PDT without irrigation, PDT accompanied by irrigation with NaOCl, EDTA, or citric acid, PDT using an EDTA-based photosensitizer or a citric-acid-based photosensitizer and PDT with ultrasonic activation of the photosensitizer. A 15 mg/ml toluidine blue served as the photosensitizer, activated by a 100 mW LED light source. Sterile paper points were used for sampling the root canals and dentin chips were collected to assess the remaining contamination after treatment. Samples were cultured on blood agar plates and colony forming units were quantified. RESULTS PDT alone achieved a reduction in E. faecalis counts by 92.7%, NaOCl irrigation alone and combined with PDT by 99.9%. The antibacterial effects increased by the combination of irrigation using EDTA or citric acid and PDT compared to irrigation alone. More than 99% of E. faecalis were killed using PDT with the modified photosensitizers and ultrasonic activation. CONCLUSIONS NaOCl based disinfection achieved the highest antimicrobial effect. Using PDT with an EDTA-based or citric-acid-based phozosensitizer or activating the photosensitizer with ultrasound resulted in a significantly higher reduction in E. faecalis counts compared to conventional PDT.
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Affiliation(s)
- C Tennert
- University of Freiburg-Medical Center, Department of Operative Dentistry and Periodontology, Hugstetter Str. 55, 79106 Freiburg, Germany.
| | - A M Drews
- University of Freiburg-Medical Center, Department of Operative Dentistry and Periodontology, Hugstetter Str. 55, 79106 Freiburg, Germany.
| | - V Walther
- University of Freiburg-Medical Center, Department of Operative Dentistry and Periodontology, Hugstetter Str. 55, 79106 Freiburg, Germany.
| | - M J Altenburger
- University of Freiburg-Medical Center, Department of Operative Dentistry and Periodontology, Hugstetter Str. 55, 79106 Freiburg, Germany.
| | - L Karygianni
- University of Freiburg-Medical Center, Department of Operative Dentistry and Periodontology, Hugstetter Str. 55, 79106 Freiburg, Germany.
| | - K T Wrbas
- University of Freiburg-Medical Center, Department of Operative Dentistry and Periodontology, Hugstetter Str. 55, 79106 Freiburg, Germany.
| | - E Hellwig
- University of Freiburg-Medical Center, Department of Operative Dentistry and Periodontology, Hugstetter Str. 55, 79106 Freiburg, Germany.
| | - A Al-Ahmad
- University of Freiburg-Medical Center, Department of Operative Dentistry and Periodontology, Hugstetter Str. 55, 79106 Freiburg, Germany.
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Tennert C, Eismann M, Goetz F, Woelber JP, Hellwig E, Polydorou O. A temporary filling material used for coronal sealing during endodontic treatment may cause tooth fractures in large Class II cavities in vitro. Int Endod J 2014; 48:84-8. [PMID: 24646310 DOI: 10.1111/iej.12280] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 03/13/2014] [Indexed: 11/27/2022]
Abstract
AIM To investigate the use of a zinc oxide/zinc sulphate-based cement (Coltosol(®) F, Coltène Whaledent, Cuyahoga Falls, OH, USA) as a temporary filling material during multiple-visit root canal treatments and the occurrence of cracks within the filling material or the tooth. METHODOLOGY Root canals of one hundred and twenty-two extracted human molars were prepared using ProTaper instruments up to size F2. After root canal preparation, standardized mesial-occlusal-distal cavities were prepared. The buccal-lingual/palatal width of the cavities was 4.5 mm), so that the remaining cavity walls had a mean thickness of 3.5 mm. Teeth were checked for cracks and fracture lines using a stereomicroscope with 10× magnification. A calcium hydroxide slurry was used as an intracanal dressing. The teeth were divided into three groups. In the Coltosol group, the cavity was filled with Coltosol(®) F. In the Coltosol-Clearfil group, a 2-mm layer of Coltosol(®) F was placed into the coronal pulp chamber, the remaining cavity was filled with Clearfil(™) . In the Clearfil group, a foam pellet was placed onto the orifices of the root canals, the remaining cavity was filled with Clearfil(™) . In the control group, the cavities were left without any filling material. The teeth were stored in water at 37 °C for 14 days and examined every 24 h under a stereomicroscope for fracture lines occurring on the tooth surface or in the filling material. RESULTS In the Coltosol group, fractures within the filling material were observed in 28 (85%) of 33 teeth. 13 (39%) teeth had tooth fractures. Amongst these teeth, 8 (61%) had root fractures, 1 (8%) had a crown fracture and 4 (31%) had a root-crown fracture. CONCLUSION Coltosol(®) F, when used alone as a restorative material, led to tooth fractures in Class II cavities in teeth undergoing root canal treatment. Tooth fractures may occur 4 days after placement of the filling.
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Affiliation(s)
- C Tennert
- Department of Operative Dentistry and Periodontology, University of Freiburg - Medical Center, Freiburg, Germany
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Karygianni L, Anderson AC, Tennert C, Kollmar K, Altenburger MJ, Hellwig E, Al-Ahmad A. Supplementary sampling of obturation materials enhances microbial analysis of endodontic treatment failures: a proof of principle study. Clin Oral Investig 2014; 19:319-27. [PMID: 24677170 DOI: 10.1007/s00784-014-1231-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Accepted: 03/14/2014] [Indexed: 01/03/2023]
Abstract
OBJECTIVES Root canal treatment failures often correlate with persistent biomaterial-associated endodontic infections. The aim of the present study was to assess the impact of endodontic obturation material sampling from root canals with posttreatment apical periodontitis on improving standard study protocols. MATERIALS AND METHODS Samples from previously filled root canals and their corresponding endodontic filling materials were obtained from five root-filled teeth with posttreatment periradicular lesions. After cultivation, the isolated microorganisms were quantified and biochemically identified. Moreover, clone libraries were constructed after the amplification of bacterial 16S ribosomal DNA (rDNA) from the same samples. DNA from selected clones was sequenced to identify microbial species. Transmission electron microscopy (TEM) aided visualization of the detected bacteria. RESULTS Overall, 22 taxa of the phyla Firmicutes, Actinobacteria, and Bacteroidetes were detected in both obturation and root canal samples by culture-dependent and culture-independent methods. Root canal fillings sheltered 17 species (3.30-7.50 × 10(3) CFU/ml). Of these, nine were detected solely in the retrieved obturation materials. The reinfected root canals harbored 13 taxa (3.48-7.36 × 10(3) CFU/ml). Obligate and facultative anaerobic bacteria prevailed. The number of different species ranged from 1 to 5 within a single sample. Fungi were not detected. CONCLUSIONS Bacteria can colonize both root canals and endodontic fillings in vivo. CLINICAL RELEVANCE Integrating the sampling of obturation materials with standard root canal sample collection offers a clearer insight into the actual microbial flora of reinfected root canals and improves the study protocols of secondary/persistent endodontic infections.
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Affiliation(s)
- L Karygianni
- Department of Operative Dentistry and Periodontology, Center for Dental Medicine, University of Freiburg, Hugstetter Straße 55, 79106, Freiburg, Germany
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Al-Ahmad A, Tennert C, Karygianni L, Wrbas KT, Hellwig E, Altenburger MJ. Antimicrobial photodynamic therapy using visible light plus water-filtered infrared-A (wIRA). J Med Microbiol 2013. [DOI: 10.1099/jmm.0.048843-0] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Affiliation(s)
- A. Al-Ahmad
- Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany
| | - C. Tennert
- Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany
| | - L. Karygianni
- Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany
| | - K. T. Wrbas
- Department of Endodontics, Centre for Operative Dentistry and Periodontology, University of Dental Medicine and Oral Health, Danube Private University (DPU), Krems, Austria
- Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany
| | - E. Hellwig
- Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany
| | - M. J. Altenburger
- Department of Operative Dentistry and Periodontology, Albert-Ludwigs-University, Freiburg, Germany
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Schmidt FM, Tennert C, Teupser D, Himmerich H. [Optimizing antidepressant pharmacotherapy in a case of inflammatory bowel disease and major depression]. Psychiatr Prax 2012; 39:239-242. [PMID: 22689282 DOI: 10.1055/s-0032-1305013] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE In the framework of a case report on a patient suffering from major depression and inflammatory bowel disease we address the pharmacotherapeutical options in case of subtherapeutic mirtazapine levels. METHODS We applied therapeutic drug monitoring (TDM) and cytochrome P450 2D6 genotyping, and switched to an orodispersible tablet. RESULTS AND CONCLUSION Thus, mirtazapine plasma levels could be raised and clinical improvement of the depressive symptoms was achieved.
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MESH Headings
- Alleles
- Anti-Inflammatory Agents/administration & dosage
- Anti-Inflammatory Agents/adverse effects
- Antidepressive Agents, Tricyclic/adverse effects
- Antidepressive Agents, Tricyclic/pharmacokinetics
- Antidepressive Agents, Tricyclic/therapeutic use
- Colitis, Ulcerative/blood
- Colitis, Ulcerative/diagnosis
- Colitis, Ulcerative/psychology
- Combined Modality Therapy
- Cytochrome P-450 CYP2D6/genetics
- Depressive Disorder, Major/blood
- Depressive Disorder, Major/diagnosis
- Depressive Disorder, Major/drug therapy
- Depressive Disorder, Major/psychology
- Dose-Response Relationship, Drug
- Genetic Carrier Screening
- Humans
- Liver/enzymology
- Male
- Mesalamine/adverse effects
- Mesalamine/therapeutic use
- Metabolic Clearance Rate/genetics
- Mianserin/adverse effects
- Mianserin/analogs & derivatives
- Mianserin/pharmacokinetics
- Mianserin/therapeutic use
- Middle Aged
- Mirtazapine
- Patient Admission
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Affiliation(s)
- Frank Martin Schmidt
- Klinik und Poliklinik für Psychiatrie und Psychotherapie, Universitätsklinikum Leipzig.
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Seyfarth HJ, Favreau N, Tennert C, Rosendahl J, Ruffert C, Mössner J, Halank M, Kovacs P, Wittenburg H. Systematische Untersuchung genetischer Risikofaktoren einer Hepatotoxizität durch den Endothelinantagonisten Bosentan bei Patienten mit pulmonalarterieller Hypertonie (PAH). Pneumologie 2012. [DOI: 10.1055/s-0032-1302545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Schmidt FM, Tennert C, Teupser D, Himmerich H. Applying cytochrome P450 2D6 and 2C19 genotyping to clinical practice: Impact of genotypes and plasma levels on therapeutic decisions during antidepressant treatment. Pharmacopsychiatry 2011. [DOI: 10.1055/s-0031-1292543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Beutner F, Teupser D, Tennert C, Scholz M, Gielen S, Sandri M, Schuler G, Thiery J. MS259 RELATIONSHIP OF INFLAMMATORY MARKER C-REACTIVE PROTEIN, LIPID MARKERS AND CONVENTIONAL CARDIOVASCULAR RISK FACTORS IN SUBJECTS WITH SUSPECTED CORONARY ARTERY DISEASE. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70760-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Reedijk M, Odorcic S, Zhang H, Chetty R, Tennert C, Dickson BC, Lockwood G, Gallinger S, Egan SE. Activation of Notch signaling in human colon adenocarcinoma. Int J Oncol 2009; 33:1223-9. [PMID: 19020755 DOI: 10.3892/ijo_00000112] [Citation(s) in RCA: 86] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Notch and Wnt signaling function together to regulate colonic progenitor cell division and differentiation. Studies in mice have also shown that Notch signaling is required for adenoma formation in response to elevated Wnt-pathway signaling that occurs in the APCMin mouse model of human adenomatous polyposis coli. We therefore used in situ hybridization to analyze expression of Notch ligands, receptors and fringe genes, as well as the Notch target gene, HES1, in human colorectal cancer (CRC). In a small cohort of tumors, JAGGED ligands, NOTCH1, LFNG and HES1 were expressed at levels similar to, or higher than, levels observed in the crypt. To explore the possibility that Notch signaling may play a quantitative role in human CRC we next analyzed HES1 mRNA expression in 130 tumors, each associated with outcome data. The vast majority of these tumors expressed HES1, although at varying levels. Absolute expression levels did not correlate with patient survival. These results establish that JAG ligands and NOTCH1, as well as Notch receptor activation are consistent features of human CRC and support the notion that many of these tumors, like the APCMin mouse, may respond to anti-Notch therapeutic regimes.
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Affiliation(s)
- Michael Reedijk
- Program in Developmental Biology and Stem Cell Research, The Hospital for Sick Children, MaRS East Tower, Ontario M5G 1L7, Canada
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Teupser D, Kretzschmar D, Tennert C, Burkhardt R, Wilfert W, Fengler D, Naumann R, Sippel AE, Thiery J. Effect of Macrophage Overexpression of Murine
Liver X Receptor
-α (
LXR
-α) on Atherosclerosis in LDL-Receptor Deficient Mice. Arterioscler Thromb Vasc Biol 2008; 28:2009-15. [DOI: 10.1161/atvbaha.108.175257] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background—
The nuclear liver X receptor-α (LXR-α) has been implicated in the regulation of intracellular cholesterol homeostasis, inflammatory response, and atherosclerosis susceptibility. The aim of the present study was to test whether transgenic expression of LXR-α might affect these mechanisms and result in a reduction of atherosclerosis.
Methods and Results—
We generated mice with macrophage overexpression of mouse
LXR
-α, evidenced by significantly elevated expression levels of LXR-target genes (
ABCA1
,
ABCG1
) in these cells. For atherosclerosis studies, mice were crossed onto the LDL-receptor deficient background. Plasma lipids and lipoproteins as well as liver triglycerides were not significantly different between transgenic animals and nontransgenic controls. However, lesion area at the brachiocephalic artery (BCA) was significantly reduced (−83%,
P
=0.02) in male
LXR
-α transgenic mice. This was associated with a significantly increased cholesterol efflux to acceptor-free media (+24%,
P
=0.002) and ApoA1 containing media (+20%,
P
<0.0001) as well as reduced lipopolysaccharide (LPS)-induced NO-release from macrophages of transgenic animals, providing a potential mechanism for the reduction of atherosclerosis.
Conclusion—
Our data show for the first time that transgenic overexpression of
LXR
-α in macrophages has significant antiatherogenic properties. We conclude that overexpression of
LXR
-α in macrophages might be useful as a therapeutic principle for the prevention of atherosclerosis.
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Affiliation(s)
- Daniel Teupser
- From the Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (D.T., D.K., C.T., R.B., W.W., D.F., J.T.) University Leipzig, Germany; Institut für Biologie III (A.E.S.), Albrecht-Ludwigs-Universität Freiburg, Germany; and the Max Planck Institute of Molecular Cell Biology and Genetics (R.N.), Dresden, Germany
| | - Daniel Kretzschmar
- From the Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (D.T., D.K., C.T., R.B., W.W., D.F., J.T.) University Leipzig, Germany; Institut für Biologie III (A.E.S.), Albrecht-Ludwigs-Universität Freiburg, Germany; and the Max Planck Institute of Molecular Cell Biology and Genetics (R.N.), Dresden, Germany
| | - Carsten Tennert
- From the Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (D.T., D.K., C.T., R.B., W.W., D.F., J.T.) University Leipzig, Germany; Institut für Biologie III (A.E.S.), Albrecht-Ludwigs-Universität Freiburg, Germany; and the Max Planck Institute of Molecular Cell Biology and Genetics (R.N.), Dresden, Germany
| | - Ralph Burkhardt
- From the Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (D.T., D.K., C.T., R.B., W.W., D.F., J.T.) University Leipzig, Germany; Institut für Biologie III (A.E.S.), Albrecht-Ludwigs-Universität Freiburg, Germany; and the Max Planck Institute of Molecular Cell Biology and Genetics (R.N.), Dresden, Germany
| | - Wolfgang Wilfert
- From the Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (D.T., D.K., C.T., R.B., W.W., D.F., J.T.) University Leipzig, Germany; Institut für Biologie III (A.E.S.), Albrecht-Ludwigs-Universität Freiburg, Germany; and the Max Planck Institute of Molecular Cell Biology and Genetics (R.N.), Dresden, Germany
| | - Dörte Fengler
- From the Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (D.T., D.K., C.T., R.B., W.W., D.F., J.T.) University Leipzig, Germany; Institut für Biologie III (A.E.S.), Albrecht-Ludwigs-Universität Freiburg, Germany; and the Max Planck Institute of Molecular Cell Biology and Genetics (R.N.), Dresden, Germany
| | - Ronald Naumann
- From the Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (D.T., D.K., C.T., R.B., W.W., D.F., J.T.) University Leipzig, Germany; Institut für Biologie III (A.E.S.), Albrecht-Ludwigs-Universität Freiburg, Germany; and the Max Planck Institute of Molecular Cell Biology and Genetics (R.N.), Dresden, Germany
| | - Albrecht E. Sippel
- From the Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (D.T., D.K., C.T., R.B., W.W., D.F., J.T.) University Leipzig, Germany; Institut für Biologie III (A.E.S.), Albrecht-Ludwigs-Universität Freiburg, Germany; and the Max Planck Institute of Molecular Cell Biology and Genetics (R.N.), Dresden, Germany
| | - Joachim Thiery
- From the Institute of Laboratory Medicine, Clinical Chemistry, and Molecular Diagnostics (D.T., D.K., C.T., R.B., W.W., D.F., J.T.) University Leipzig, Germany; Institut für Biologie III (A.E.S.), Albrecht-Ludwigs-Universität Freiburg, Germany; and the Max Planck Institute of Molecular Cell Biology and Genetics (R.N.), Dresden, Germany
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15
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Tennert C, Teupser D, Mueller MA, Wilfert W, Renner-Müller I, Stein O, Stein Y, Sippel AE, Wolf E, Thiery J. Effect of macrophage ApoE on atherosclerosis in LDL-receptor deficient mice. Biochem Biophys Res Commun 2007; 361:574-9. [PMID: 17669363 DOI: 10.1016/j.bbrc.2007.07.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [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: 06/21/2007] [Accepted: 07/08/2007] [Indexed: 11/22/2022]
Abstract
Apolipoprotein E (ApoE) plays an important role in the development of atherosclerosis. Previous studies provide evidence for an atheroprotective role of ApoE in mouse models on the ApoE deficient (ApoE-/-) background. However, it is not clear whether this is also true on the LDL-receptor deficient (LDLR-/-) background. Transgenic mice carrying hApoE coding sequences in a chicken lysozyme expression cassette were generated. Transgene expression was directed into macrophages, expressing low levels of hApoE. Expression of the hApoE transgene was not sufficient to correct hypercholesterolemia. However, lesion area at the brachiocephalic artery (BCA) was significantly reduced (-72%) in female hApoE transgenic mice on the LDLR-/- background. This was associated with increased cholesterol efflux in macrophages of transgenic animals on the ApoE-/- background. We conclude that over-expression of ApoE in macrophages might be useful as a therapeutic principle for the prevention of atherosclerosis.
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Affiliation(s)
- Carsten Tennert
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, Liebigstr. 27, D-04103 Leipzig, Germany
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