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- Carstens, Bodil B., et al.
(author)
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Isolation, characterization, and synthesis of the Barrettides : disulfide-containing peptides from the marine sponge Geodia barretti
- 2015
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In: Journal of Natural Products. - : American Chemical Society (ACS). - 0163-3864 .- 1520-6025. ; 78:8, s. 1886-1893
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Journal article (peer-reviewed)abstract
- Two disulfide-containing peptides, barrettides A (1) and B (2), from the cold-water marine sponge Geodia barretti are described. Those 31 amino acid residue long peptides were sequenced using mass spectrometry methods and structurally characterized using NMR spectroscopy. The structure of 1 was confirmed by total synthesis using the solid-phase peptide synthesis approach that was developed. The two peptides were found to differ only at a single position in their sequence. The three-dimensional structure of 1 revealed that these peptides possess a unique fold consisting of a long β-hairpin structure that is cross-braced by two disulfide bonds in a ladder-like arrangement. The peptides are amphipathic in nature with the hydrophobic and charged residues clustered on separate faces of the molecule. The barrettides were found not to inhibit the growth of either Escherichia coli or Staphylococcus aureus but displayed antifouling activity against barnacle larvae (Balanus improvisus) without lethal effects in the concentrations tested. (Figure Presented).
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| 2. |
- Halldin, Anna-Karin, 1969, et al.
(author)
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Obesity in Middle Age Increases Risk of Later Heart Failure in Women - Results from the Prospective Population Study of Women and H70 Studies in Gothenburg, Sweden.
- 2017
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In: Journal of cardiac failure. - : Elsevier BV. - 1532-8414 .- 1071-9164. ; 23:5, s. 363-369
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Journal article (peer-reviewed)abstract
- Obesity has been shown to be a risk factor for heart failure, but whether the association varies by age is not understood.To examine the impact of obesity/overweight on the risk of developing heart failure in women of different ages by analysing prospective data from 2 population studies.Data were obtained from the Population Study of Women in Gothenburg and the Gerontological and Geriatric Population Studies concerning Body Mass Index (BMI) collected in 1980 or later. Follow-up ended 2006. Cox proportional hazard methods were used to determine associations between developing HF and BMI in 2574 women, 1243 aged 26-65 and 1331 aged 66-76 at baseline.Women aged 26-65 years at baseline with BMI≥30 had an increased risk of developing heart failure (hazard ratio (HR) 2.61, 95% confidence interval (CI) 1.56-4.35) even when controlling for age, glucose, smoking, alcohol consumption, s-triglycerides, and systolic blood pressure (reference group: women with BMI 18.5-22.4). Obese older women 66-76 years at baseline did not show increased risk of developing HF (HR 0.55, 95% CI 0.23-1.29).Obesity in middle aged women increases their risk of developing heart failure later in life. In contrast, obesity in late life shows no association with heart failure.
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| 3. |
- Sundström, Johan, Professor, 1971-, et al.
(author)
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Rationale for a Swedish cohort consortium
- 2019
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In: Upsala Journal of Medical Sciences. - : Taylor & Francis Group. - 0300-9734 .- 2000-1967. ; 124:1, s. 21-28
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Journal article (peer-reviewed)abstract
- We herein outline the rationale for a Swedish cohort consortium, aiming to facilitate greater use of Swedish cohorts for world-class research. Coordination of all Swedish prospective population-based cohorts in a common infrastructure would enable more precise research findings and facilitate research on rare exposures and outcomes, leading to better utilization of study participants' data, better return of funders' investments, and higher benefit to patients and populations. We motivate the proposed infrastructure partly by lessons learned from a pilot study encompassing data from 21 cohorts. We envisage a standing Swedish cohort consortium that would drive development of epidemiological research methods and strengthen the Swedish as well as international epidemiological competence, community, and competitiveness.
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| 4. |
- Sundström, Johan, Professor, 1971-, et al.
(author)
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Risk factors for subarachnoid haemorrhage : a nationwide cohort of 950 000 adults
- 2019
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In: International Journal of Epidemiology. - : Oxford University Press. - 0300-5771 .- 1464-3685. ; 48:6, s. 2018-2025
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Journal article (peer-reviewed)abstract
- BACKGROUND: Subarachnoid haemorrhage (SAH) is a devastating disease, with high mortality rate and substantial disability among survivors. Its causes are poorly understood. We aimed to investigate risk factors for SAH using a novel nationwide cohort consortium.METHODS: We obtained individual participant data of 949 683 persons (330 334 women) between 25 and 90 years old, with no history of SAH at baseline, from 21 population-based cohorts. Outcomes were obtained from the Swedish Patient and Causes of Death Registries.RESULTS: During 13 704 959 person-years of follow-up, 2659 cases of first-ever fatal or non-fatal SAH occurred, with an age-standardized incidence rate of 9.0 [95% confidence interval (CI) (7.4-10.6)/100 000 person-years] in men and 13.8 [(11.4-16.2)/100 000 person-years] in women. The incidence rate increased exponentially with higher age. In multivariable-adjusted Poisson models, marked sex interactions for current smoking and body mass index (BMI) were observed. Current smoking conferred a rate ratio (RR) of 2.24 (95% CI 1.95-2.57) in women and 1.62 (1.47-1.79) in men. One standard deviation higher BMI was associated with an RR of 0.86 (0.81-0.92) in women and 1.02 (0.96-1.08) in men. Higher blood pressure and lower education level were also associated with higher risk of SAH.CONCLUSIONS: The risk of SAH is 45% higher in women than in men, with substantial sex differences in risk factor strengths. In particular, a markedly stronger adverse effect of smoking in women may motivate targeted public health initiatives.
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