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Sökning: WFRF:(Sjogren P)

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  • Olalde, I., et al. (författare)
  • The Beaker phenomenon and the genomic transformation of northwest Europe
  • 2018
  • Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 555:7695, s. 190-196
  • Tidskriftsartikel (refereegranskat)abstract
    • From around 2750 to 2500 bc, Bell Beaker pottery became widespread across western and central Europe, before it disappeared between 2200 and 1800 bc. The forces that propelled its expansion are a matter of long-standing debate, and there is support for both cultural diffusion and migration having a role in this process. Here we present genome-wide data from 400 Neolithic, Copper Age and Bronze Age Europeans, including 226 individuals associated with Beaker-complex artefacts. We detected limited genetic affinity between Beaker-complex-associated individuals from Iberia and central Europe, and thus exclude migration as an important mechanism of spread between these two regions. However, migration had a key role in the further dissemination of the Beaker complex. We document this phenomenon most clearly in Britain, where the spread of the Beaker complex introduced high levels of steppe-related ancestry and was associated with the replacement of approximately 90% of Britain's gene pool within a few hundred years, continuing the east-to-west expansion that had brought steppe-related ancestry into central and northern Europe over the previous centuries.
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  • Andersson, P., et al. (författare)
  • Dental status in nursing home residents with domiciliary dental care in Sweden
  • 2017
  • Ingår i: Community Dental Health. - : F D I WORLD DENTAL PRESS LTD. - 0265-539X. ; 34:4, s. 203-207
  • Tidskriftsartikel (refereegranskat)abstract
    • Objective: To describe the dental health status of elderly people in nursing homes receiving domiciliary dental care. Design: Case note review. Clinical setting: Nursing homes in 8 Swedish counties. Participants: Care dependent elderly people (>= 65 years). Methods: Clinical data, including the number of remaining natural teeth, missing and decayed teeth (manifest dental caries) and root remnants, recorded by dentists according to standard practices. Medical and dental risk assessments were performed. Results: Data were available for 20,664 patients. Most were women (69.1%), with a mean age of 87.1 years (SD 7.42, range 65-109). The mean age for men was 83.5 years (SD 8.12, range 65-105). Two or more medical conditions were present in most of the population. A total of 16,210 individuals had existing teeth of whom 10,974 (67.7%) had manifest caries. The mean number of teeth with caries was 5.0 (SD 5.93) corresponding to 22.8% of existing teeth. One in four individuals were considered to have a very high risk in at least one professional dental risk assessment category. Conclusions: Care dependent elderly in nursing homes have very poor oral health. There is a need to focus on the oral health-related quality of life for this group of frail elderly during their final period of life.
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