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- Olalde, I., et al.
(författare)
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The Beaker phenomenon and the genomic transformation of northwest Europe
- 2018
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Ingår i: Nature. - : Springer Science and Business Media LLC. - 0028-0836 .- 1476-4687. ; 555:7695, s. 190-196
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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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- Volpe, C, et al.
(författare)
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The role of adrenal scintigraphy in the preoperative management of primary aldosteronism
- 2008
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Ingår i: Scandinavian journal of surgery : SJS : official organ for the Finnish Surgical Society and the Scandinavian Surgical Society. - : SAGE Publications. - 1457-4969. ; 97:3, s. 248-253
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Tidskriftsartikel (refereegranskat)abstract
- Differentiation between the two major subgroups of primary aldosteronism, bilateral hyperplasia and aldosterone producing adenoma is essential since therapy in the former is medical and in the latter surgical. The aim of the present study was to evaluate the clinical utility of adrenocortical scintigraphy in the management of primary aldosteronism. Material and Methods: [131I] norcholesterol (NP-59) scintigraphy with dexamethasone suppression for subclassification and lateralization of primary aldosteronism was evaluated in 49 patients with long-term follow-up after diagnosis and treatment Results: Thirty-three patients with the diagnosis of aldosterone producing adenoma were operated with adrenalectomy. Preoperative scintigraphy showed lateralized isotope uptake in 27/33 patients while 6 showed no uptake. Twenty-two were cured and three significantly improved. Thus, in 25/33 (76%), scintigraphy showed the correct side as the patients benefited of surgery. Two patients did not improve. Fourteen patients with a probable diagnosis of bilateral hyperplasia had normal scintigraphies. Conclusions: In the present retrospective study we found limited sensitivity of NP-59 scintigraphy. However, when a lateralized scintigraphic uptake is achieved it has a high accuracy. Scintigraphy may be used as an adjunct in cases where adrenal venous sampling is inconclusive.
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