
from A via a.sfakia on Inoreader http://bit.ly/2EY1KWB
Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,







A warped disk around an infant protostar
A warped disk around an infant protostar, Published online: 31 December 2018; doi:10.1038/s41586-018-0819-2
Observations at millimetre wavelengths reveal a young protostar surrounded by a disk with two differently tilted regions.Structural basis of Notch recognition by human γ-secretase
Structural basis of Notch recognition by human γ-secretase, Published online: 31 December 2018; doi:10.1038/s41586-018-0813-8
The cryo-electron microscopy structure of human γ-secretase in complex with its substrate Notch reveals pronounced structural rearrangements compared to the apo enzyme, including formation of a β-sheet involving residues from both enzyme and substrate.Tissue-resident memory CD8+ T cells promote melanoma–immune equilibrium in skin
Tissue-resident memory CD8<sup>+</sup> T cells promote melanoma–immune equilibrium in skin, Published online: 31 December 2018; doi:10.1038/s41586-018-0812-9
A transplantable mouse model of persistent cutaneous melanoma shows that immune-mediated tumour suppression can result in a state of melanoma–immune equilibrium, and that tissue-resident memory T cells are essential drivers of this equilibrium state.Structure of the post-translational protein translocation machinery of the ER membrane
Structure of the post-translational protein translocation machinery of the ER membrane, Published online: 31 December 2018; doi:10.1038/s41586-018-0856-x
Structure of the post-translational protein translocation machinery of the ER membraneObjectives
To study exposure-response relations between cumulative organic dust exposure and incident chronic obstructive pulmonary disease (COPD) among subjects employed in the Danish farming and wood industry.
MethodsWe studied exposure-response relations between cumulative organic dust exposure and incident COPD (1997–2013) among individuals born during 1950–1977 in Denmark ever employed in the farming or wood industry (n=1 75 409). Industry-specific employment history (1964–2007), combined with time-dependent farming and wood industry-specific exposure matrices defined cumulative exposure. We used logistic regression analysis with discrete survival function adjusting for age, sex and calendar year. Adjustment for smoking status was explored in a subgroup of 4023 with smoking information available.
ResultsCumulative organic dust exposure was inversely associated with COPD (adjusted rate ratios (RRadj (95% CIs) of 0.90 (0.82 to 0.99), 0.76 (0.69 to 0.84) and 0.52 (0.47 to 0.58) for intermediate-low, intermediate-high and high exposure quartiles, respectively, compared with the lowest exposure quartile). Lagging exposure 10 years was not consistently suggestive of an association between cumulative exposure and COPD; RRadj (95% CI): 1.05 (0.94 to 1.16), 0.92 (0.83 to 1.02) and 0.63 (0.56 to 0.70). Additional stratification by duration of employment showed no clear association between organic dust exposure and COPD except for the longer exposed (15–40 years) where an inverse association was indicated. Subgroup analyses showed that smoking had no impact on exposure-response estimates.
ConclusionsOur findings show no increased risk of COPD with increasing occupational exposure to organic dust in the farming or wood industry.
Potential residual confounding by smoking can, however, not be ruled out.




