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- Halling, A, et al.
(författare)
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Comparison between the Klemetti index and heel DXA BMD measurements in the diagnosis of reduced skeletal bone mineral density in the elderly
- 2005
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Ingår i: Osteoporosis International. - : Springer Science and Business Media LLC. - 1433-2965 .- 0937-941X. ; 16:8, s. 999-1003
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Tidskriftsartikel (refereegranskat)abstract
- Osteopenia/osteoporosis affect many elderly people and might not be detected until symptoms of fractures occur. Early detection of osteopenia/osteoporosis is important and would allow preventive measures and treatment. Access to screening for osteopenia/osteoporosis is often limited, whereas panoramic radiography is commonly used in dentistry. The aim of this study was to determine the validity of the Klemetti index (KI), measured on panoramic radiographs, in the diagnosis of osteopenia/osteoporosis as defined by a bone mineral density (BMD) measurement below) 1.5 standard deviations (SDs) of a community based sample. In total, 211 consecutive participants ( 102 men and 109 women) 60 - 96 years in the SNAC-Blekinge study ( Swedish National Study on Ageing and Care) underwent bone densitometry [ by dual-energy X-ray absorptiometry (DXA)] of both heels. A panoramic radiograph was taken of each participant, and mandibular cortex on a panoramic radiograph was classified as '0' or normal ( even and sharp endosteal margin), '1', moderately eroded ( evidence of lacunar resorption or endosteal cortical residues), or '2', severely eroded ( unequivocal porosity). From logistic regression, the odds ratio of having a BMD measurement below -1.5 SD was 8.04 (95% CI 2.39 to 27.12, P< 0.001) in the 'osteopenic' (KI category 2), compared with the 'normal' group ( KI categories 0 and 1). Receiver operating characteristic (ROC) curve analysis was used to measure the validity of the KI indicating osteopenia ( KI category 2) in predicting reduced BMD. This point provided a sensitivity of 50% and a specificity of 89%. Positive and negative predictive values were 21% and 97%, respectively. There were 87% correctly classified subjects. The area under the ROC curve was 0.64. The present study demonstrated that a negative finding ( KI category < 2) is highly predictive of the absence of osteopenia/osteoporosis as defined by the DXA measurements.
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| 2. |
- Isehed, Catrine, et al.
(författare)
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Effectiveness of enamel matrix derivative on the clinical and microbiological outcomes following surgical regenerative treatment of peri-implantitis : A randomized controlled trial
- 2016
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Ingår i: Journal of Clinical Periodontology. - Hoboken, USA : Wiley-Blackwell Publishing Inc.. - 0303-6979 .- 1600-051X. ; 43:10, s. 863-873
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Tidskriftsartikel (refereegranskat)abstract
- Objective: This randomized clinical trial aimed at comparing radiological, clinical and microbial effects of surgical treatment of peri-implantitis alone or in combination with enamel matrix derivative (EMD).Methods: Twenty-six subjects were treated with open flap debridement and decontamination of the implant surfaces with gauze and saline preceding adjunctive EMD or no EMD. Bone level (BL) change was primary outcome and secondary outcomes were changes in pocket depth (PD), plaque, pus, bleeding and the microbiota of the peri-implant biofilm analyzed by the Human Oral Microbe Identification Microarray over a time period of 12 months.Results: In multivariate modelling, increased marginal BL at implant site was significantly associated with EMD, the number of osseous walls in the peri-implant bone defect and a Gram+/aerobic microbial flora, whereas reduced BL was associated with a Gram-/anaerobic microbial flora and presence of bleeding and pus, with a cross-validated predictive capacity (Q(2) ) of 36.4%. Similar, but statistically non-significant, trends were seen for BL, PD, plaque, pus and bleeding in univariate analysis.Conclusion: Adjunctive EMD to surgical treatment of peri-implantitis was associated with prevalence of Gram+/aerobic bacteria during the follow-up period and increased marginal BL 12 months after treatment.
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| 3. |
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| 4. |
- Johansson, Anna Maria, et al.
(författare)
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Variation in the VWF Gene in Swedish Patients with Type 1 von Willebrand Disease.
- 2011
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Ingår i: Annals of Human Genetics. - : Wiley. - 1469-1809 .- 0003-4800. ; 75, s. 447-455
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Tidskriftsartikel (refereegranskat)abstract
- The spectrum of mutations in the von Willebrand factor (VWF) gene in a Swedish type 1 von Willebrand disease (VWD) population was investigated. To gain more knowledge about the dynamics of VWD mutations, the data were analyzed from a population genetics perspective. The VWF gene was resequenced in 54 Swedish patients diagnosed with type 1 VWD. Fifty-five variable sites were located in exons, 10 in the promoter and 38 in introns. The spectrum of mutations was similar to a European study, but included 10 new candidate mutations. The synonymous sites were evenly distributed along the coding sequence, whereas nonsynonymous sites were located into three clusters. Overall, 44% of patients had no mutations or candidate mutations and no promoter haplotype was significantly associated with disease. In 11 patients (20%), more than one mutation or candidate mutation was detected. The allelic identity for the putative disease-causing mutations was approximately 0.1, compatible with an overall disease frequency of 1%. VWF sequences for exon 28 from eight monkey species were compared with the variable positions found in our patients. Positions classified as mutations were overrepresented among sites that were fixed in all eight monkey species. No general increase of the mutation rate was found for the pseudogene region.
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