| 1. |
- Hajdarevic, Senada, 1970-, et al.
(författare)
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Awareness of sunburn in childhood, use of sunbeds and change of moles in Denmark, Northern Ireland, Norway and Sweden
- 2016
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Ingår i: European Journal of Public Health. - : Oxford University Press. - 1101-1262 .- 1464-360X. ; 26:1, s. 29-35
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Malignant melanoma (MM) is increasing rapidly in Northern Europe. To reduce incidence and mortality through earlier diagnosis, public awareness of MM is important. Thus, we aim to examine awareness of risk factors and a symptom of MM, and how awareness varies by country and socio-demographic factors in Denmark, Northern Ireland (NI), Norway and Sweden.METHODS: Population-based telephone interviews using the 'Awareness and Beliefs about Cancer' measure were conducted in 2011 among 8355 adults ≥50 years as part of the International Cancer Benchmarking Partnership Module 2. Prevalence ratios (PRs) with 95% confidence intervals were calculated.RESULTS: In these four countries, lowest awareness was found for 'sunburn in childhood' (63%), whereas awareness was high for 'use of sunbeds' (91%) and 'mole change' (97%). Lack of awareness of 'sunburn in childhood' was more prevalent among respondents from Norway [PR = 1.38 (1.28-1.48)] but less prevalent among respondents from Northern Ireland (NI) [PR = 0.78 (0.72-0.85)] and Sweden [PR = 0.86 (0.79-0.93)] compared with respondents from Denmark. Lack of awareness of 'use of sunbeds' was more prevalent among respondents from Norway [PR = 2.99 (2.39-3.74)], Sweden [PR = 1.57 (1.22-2.00)], and NI [PR = 1.65 (1.30-2.10)] compared with respondents form Denmark. Being a man, age ≥70, living alone, and having lower education, were each independently associated with lack of MM-awareness.CONCLUSIONS: The results indicate relatively low awareness of 'sunburn in childhood' as a risk factor for MM, and important disparities in MM-awareness across countries and socio-demographic groups. Improved and more directed initiatives to enhance public MM-awareness, particularly about 'sunburn in childhood', are needed.
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| 2. |
- Li, Jing, et al.
(författare)
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Porous Metallosalen Hypercrosslinked Ionic Polymers for Cooperative CO2 Cycloaddition Conversion
- 2020
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Ingår i: Industrial & Engineering Chemistry Research. - : American Chemical Society (ACS). - 0888-5885 .- 1520-5045. ; 59:2, s. 676-684
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Tidskriftsartikel (refereegranskat)abstract
- Metallosalen-based porous ionic polymers have the potential to combine the merits of homogeneous organometallics and heterogeneous porous ionic catalysts in carbon dioxide (CO2) cycloaddition conversion. Herein, a series of porous metallosalen hypercrosslinked ionic polymers (M-HIPs) were synthesized through a simple method. The M-HIPs with high metal and Br anion concentrations were evaluated by catalyzing CO2 cycloaddition with epoxides. Because of the cooperative effect between Br anions and metal active species in the porous channel, M-HIPs exhibited a high CO2 catalytic performance even under ambient conditions. Among the M-HIPs (M = Co, Al, Zn), Co-HIP showed the best catalytic performance for various epoxides and was stable after five runs. Density functional theory calculations support the fact that Co-HIP had the lowest energy barrier, which agreed with the experimental results.
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| 3. |
- Lin, Yulan, et al.
(författare)
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A dietary pattern rich in lignans, quercetin and resveratrol decreases the risk of oesophageal cancer
- 2014
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Ingår i: British Journal of Nutrition. - 0007-1145 .- 1475-2662. ; 112:12, s. 2002-2009
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Tidskriftsartikel (refereegranskat)abstract
- Dietary lignans, quercetin and resveratrol have oestrogenic properties, and animal studies suggest that they synergistically decrease cancer risk. A protective effect of lignans on the development of oesophageal cancer in humans has recently been demonstrated, and the present study aimed to test whether these three phytochemicals synergistically decrease the risk of oesophageal cancer. Data from a Swedish nationwide population-based case-control study that recruited 181 cases of oesophageal adenocarcinoma (OAC), 158 cases of oesophageal squamous-cell carcinoma (OSCC), 255 cases of gastro-oesophageal junctional adenocarcinoma (JAC) and 806 controls were analysed. Exposure data were collected through face-to-face interviews and questionnaires. The intake of lignans, quercetin and resveratrol was assessed using a sixty-three-item FFQ. Reduced-rank regression was used to assess a dietary pattern, and a simplified dietary pattern score was categorised into quintiles on the basis of the distribution among the control subjects. Unconditional multivariable logistic regression provided OR with 95 % CI, adjusted for all the potential risk factors. A dietary pattern rich in lignans, quercetin and resveratrol was mainly characterised by a high intake of tea, wine, lettuce, mixed vegetables, tomatoes, and whole-grain bread and a low intake of milk. There were dose-dependent associations between simplified dietary pattern scores and all types of oesophageal cancer (all P for trend < 0·05). On comparing the highest quintiles with the lowest, the adjusted OR were found to be 0·24 (95 % CI 0·12, 0·49) for OAC, 0·31 (95 % CI 0·15, 0·65) for OSCC, and 0·49 (95 % CI 0·28, 0·84) for JAC. The results of the present study indicate that a dietary pattern characterised by the intake of lignans, quercetin and resveratrol may play a protective role in the development of oesophageal cancer in the Swedish population.
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| 4. |
- Lin, Yulan, et al.
(författare)
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Dietary intake of lignans and risk of adenocarcinoma of the esophagus and gastroesophageal junction
- 2012
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Ingår i: Cancer Causes and Control. - : Springer Science and Business Media LLC. - 0957-5243 .- 1573-7225. ; 23:6, s. 837-844
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Tidskriftsartikel (refereegranskat)abstract
- The strong male predominance in esophageal and gastroesophageal junctional adenocarcinoma remains unexplained. Sex hormonal influence has been suggested, but not proven. A protective role of dietary phytoestrogen lignans was hypothesized. A Swedish nationwide population-based case-control study was conducted in 1995-1997, including 181 cases of esophageal adenocarcinoma, 255 cases of gastroesophageal junctional adenocarcinoma, 158 cases of esophageal squamous cell carcinoma, and 806 control subjects. Data on various exposures, including dietary data, were collected through personal interviews and questionnaires. Dietary intake of lignans was assessed using a food frequency questionnaire and categorized into quartiles based on the consumption among the control participants. Unconditional logistic regression was used to calculate odds ratios (ORs) with 95 % confidence intervals (CIs), including adjustment for all established risk factors. Participants in the highest quartile of intake of lignans compared with the lowest quartile were at a decreased risk of esophageal adenocarcinoma (OR, 0.65; 95 % CI, 0.38-1.12; for trend =0.03), gastroesophageal junctional adenocarcinoma (OR, 0.37; 95 % CI, 0.23-0.58; for trend < 0.0001), and these adenocarcinomas combined (OR, 0.45; 95 % CI, 0.31-0.67; for trend < 0.0001). No clear associations were found between lignan intake and risk of esophageal squamous cell carcinoma. This population-based study indicates that a high dietary intake of lignans decreases the risk of adenocarcinoma of the esophagus and gastroesophageal junction.
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| 5. |
- Lin, Yulan, et al.
(författare)
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Dietary Intake of Lignans and Risk of Esophageal and Gastric Adenocarcinoma : A Cohort Study in Sweden
- 2013
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Ingår i: Cancer Epidemiology, Biomarkers and Prevention. - : AMER ASSOC CANCER RESEARCH. - 1055-9965 .- 1538-7755. ; 22:2, s. 308-312
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Tidskriftsartikel (refereegranskat)abstract
- High intake of phytoestrogen lignans has been found to be associated with decreased risk of esophageal adenocarcinoma in our previous population-based case-control study in Sweden. To further evaluate this possible association, we tested the hypothesis of an inverse association between dietary lignan intake and risk of esophageal and gastric adenocarcinoma using a prospective design. In a population-based cohort study in Sweden, 81,670 participants who were cancer-free at baseline were followed up during 1998 to 2009. All participants completed a 96-item food frequency questionnaire (FFQ), which was used to assess dietary exposure to lignans (secoisolariciresinol, matairesinol, lariciresinol, pinoresinol, medioresinol, and syringaresinol). All cases of esophageal, gastroesophageal junctional, and gastric adenocarcinoma were identified through linkage to the Swedish Cancer Register. Cox proportional hazard models were used to estimate HRs and 95% confidence intervals (CI), with adjustment for potential confounding factors. During an average follow-up of 9.9 years, a total of 211 cases were identified, including 83 cases of esophageal or junctional adenocarcinoma, and 128 cases of gastric adenocarcinoma. There was no statistically significant association between dietary intake of lignans and any of the studied adenocarcinomas. Compared with participants in the lowest quartile of lignan intake, the adjusted HR of the highest quartile was 0.96 (95% CI, 0.46-2.00; P-trend = 0.70) for adenocarcinoma of the esophagus or gastroesophageal junction, and 0.89 (95% CI, 0.52-1.55: P-trend = 0.78) for gastric adenocarcinoma. No clear support for a protective role of dietary intake of lignans in the development of esophageal or gastric adenocarcinoma was found. Cancer Epidemiol Biomarkers Prev; 22(2); 308-12. (c) 2012 AACR.
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| 6. |
- Lin, Yulan
(författare)
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Dietary phytoestrogens and esophageal cancer
- 2013
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Esophageal cancer is the eighth most common invasive cancer in the world, a cancer with an increasing incidence and male predominance, and there is a great need for potential dietary prevention. The overall aim of this thesis was to evaluate whether the dietary phytoestrogens lignans might play a protective role in the etiology of esophageal cancer, including gastroesophageal junctional adenocarcinoma. In Paper I, we examined the association between intake of dietary lignans based on a 63-item food frequency questionnaire (FFQ) and risk of esophageal cancer in a Swedish nationwide population-based case-control study conducted in 1995-1997. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated. Participants in the highest quartile of lignan intake compared with the lowest quartile showed a decreased risk of esophageal adenocarcinoma (OR=0.65; 95% CI: 0.38-1.12) and gastroesophageal junctional adenocarcinoma (OR=0.37; 95% CI: 0.23-0.58), while no clear associations were found for esophageal squamous-cell carcinoma. In Paper II, we validated the use of two FFQs (the 67-item FFQ-87 and the 93-item FFQ-97) for the assessment of dietary lignans compared to the serum biomarker enterolactone, the main metabolite of dietary lignans in the human body. Based on the FFQ-97, the correlation between lignan intake and serum enterolactone was significant, but the value of the correlation coefficient was small (r=0.22, p=0.01). No significant correlation was observed for the FFQ-87. In Paper III, we further evaluated the possible association between lignan intake based on the FFQ-97 and risk of esophageal and gastric adenocarcinoma using a prospective study design. Among 81,670 participants who were followed up during 1998-2009, hazard ratios (HRs) and 95% CIs were calculated. No statistically significantly decreased risk was found. Compared with the lowest quartile of lignan intake, the adjusted HRs of the highest quartile were 0.96 (95% CI: 0.46-2.00) for esophageal and gastroesophageal junctional adenocarcinoma, and 0.89 (95% CI: 0.52-1.55) for gastric adenocarcinoma. In Paper IV, we defined a dietary pattern characterized by dietary intake of lignans, quercetin and resveratrol, the three common phytochemicals with estrogenic properties, in a Swedish population-based case-control study. A decreased risk of esophageal cancer was found among individuals with a high dietary intake of these three phytochemicals. Comparing the highest quintile of food pattern score with the lowest quintile, the adjusted ORs were 0.24 (95% CI: 0.12-0.49) for esophageal adenocarcinoma, 0.31 (95% CI: 0.15-0.65) for esophageal squamous-cell carcinoma, and 0.49 (95% CI: 0.28-0.84) for gastroesophageal junctional adenocarcinoma. In conclusion, a high dietary intake of phytoestrogens, typically lignans, might decrease the risk of adenocarcinoma of esophagus and gastroesophageal junction. The FFQ-97 can be used to assess lignan exposure, and a dietary pattern characterized by a high dietary intake of lignans, quercetin, and resveratrol might prevent esophageal cancer.
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| 7. |
- Lin, Yulan, et al.
(författare)
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Metabolic syndrome and esophageal and gastric cancer
- 2015
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Ingår i: Cancer Causes and Control. - Stockholm : Karolinska Institutet, Dept of Molecular Medicine and Surgery. - 0957-5243 .- 1573-7225.
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The role of the metabolic syndrome in the etiology of esophageal and gastric cancer is unclear. METHODS: This was a large nationwide cohort study based on data from 11 prospective population-based cohorts in Norway with long-term follow-up, the Cohort of Norway (CONOR) and the third Nord-Trondelag Health Study (HUNT3). The metabolic syndrome was assessed by objective anthropometric and metabolic biochemical measures and was defined by the presence of at least three of the following five factors: increased waist circumference, elevated triglycerides, low high-density lipoprotein cholesterol, hypertension and high glucose. Newly diagnosed cases of esophageal adenocarcinoma, esophageal squamous-cell carcinoma and gastric adenocarcinoma were identified from the Norwegian Cancer Registry. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated using Cox proportional hazard models with adjustment for potential confounders. RESULT: Among 192,903 participants followed up for an average of 10.6 years, 62 developed esophageal adenocarcinoma, 64 had esophageal squamous-cell carcinoma and 373 had gastric adenocarcinoma. The metabolic syndrome was significantly associated with an increased risk of gastric adenocarcinoma (HR 1.44, 95% CI 1.14-1.82), but not associated with esophageal adenocarcinoma (HR 1.32, 95% CI 0.77-2.26) or esophageal squamous-cell carcinoma (HR 1.08, 95% CI 0.64-1.83). Increased waist circumference was associated with an increased HR of esophageal adenocarcinoma (HR 2.48, 95% CI 1.27-4.85). No significant association was found between any single component of the metabolic syndrome and risk of esophageal squamous-cell carcinoma. High waist circumference (HR 1.71, 95% CI 1.05-2.80), hypertension (HR 2.41, 95% CI 1.44-4.03) and non-fasting glucose (HR 1.74, 95% CI 1.18-2.56) were also related to an increased risk of gastric adenocarcinoma in women, but not in men. CONCLUSION: Metabolic syndrome was associated with an increased risk of gastric adenocarcinoma in women. Of the individual components of the metabolic syndrome, high waist circumference was positively associated with risk of esophageal adenocarcinoma. Positive associations were also observed for women between high waist circumference, hypertension, high non-fasting glucose and risk of gastric adenocarcinoma. However, further evidence is warranted due to the limited number of cases and the inability to effectively identify gastric cardia adenocarcinoma.
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| 8. |
- Lin, Yulan, et al.
(författare)
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Validation of FFQ-based assessment of dietary lignans compared with serum enterolactone in Swedish women
- 2013
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Ingår i: British Journal of Nutrition. - : CAMBRIDGE UNIV PRESS. - 0007-1145 .- 1475-2662. ; 109:10, s. 1873-1880
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Tidskriftsartikel (refereegranskat)abstract
- The validity of using FFQ to assess dietary lignans is uncertain. We aimed to validate the use of FFQ for the assessment of dietary intake of lignans compared to the serum biomarker enterolactone, the main product of dietary lignans' metabolism in human subjects. A random sample of women, aged 55-75 years, from the Swedish Mammography Cohort was selected. Information from two FFQ, the FFQ-87 (sixty-seven food items) and the FFQ-97 (ninety-three food items), and blood samples were collected. Dietary intake of lignans (secoisolariciresinol, matairesinol, lariciresinol, pinoresinol, medioresinol and syringaresinol) was assessed by the FFQ. Serum concentrations of enterolactone were analysed by time-resolved fluoroimmunoassay. The correlation coefficient between energy-adjusted lignan intake and serum enterolactone was estimated in crude and multivariable-adjusted models, taking into account the factors potentially influencing the serum enterolactone. Among the 135 participants aged 55-75 years, with a mean BMI of 26.7 kg/m(2), the average energy-adjusted intake of total lignans was 1616 (SD 424) and 1516 (SD 409) mu g/d according to the FFQ-87 (forty-five food items containing lignans) and the FFQ-97 (sixty-five food items containing lignans), respectively. The mean concentration of serum enterolactone was 23.2 (SD 15.4) nmol/l. The adjusted Pearson's correlation between dietary intake of lignans assessed by the FFQ-97 and serum enterolactone was statistically significant (r 0.22, P=0.01). No significant correlation was observed for the FFQ-87 (r 0.09, P=0.30). The present study indicates that the FFQ-97 might be better than the FFQ-87 for assessing dietary intake of lignans, although the correlation was low.
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| 9. |
- Lin, Zijie, et al.
(författare)
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Evaluation and review of ways to differentiate sources of ethanol in postmortem blood
- 2020
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Ingår i: International journal of legal medicine. - : SPRINGER. - 0937-9827 .- 1437-1596. ; 134, s. 2081-2093
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Forskningsöversikt (refereegranskat)abstract
- Accurate determination of a persons blood alcohol concentration (BAC) is an important task in forensic toxicology laboratories because of the existence of statutory limits for driving a motor vehicle and workplace alcohol testing regulations. However, making a correct interpretation of the BAC determined in postmortem (PM) specimens is complicated, owing to the possibility that ethanol was produced in the body after death by the action of various micro-organisms (e.g., Candida species) and fermentation processes. This article reviews various ways to establish the source of ethanol in PM blood, including collection and analysis of alternative specimens (e.g., bile, vitreous humor (VH), and bladder urine), the identification of non-oxidative metabolites of ethanol, ethyl glucuronide (EtG) and ethyl sulfate (EtS), the urinary metabolites of serotonin (5-HTOL/5-HIAA), and identification ofn-propanol andn-butanol in blood, which are known putrefaction products. Practical utility of the various biomarkers including specificity and stability is discussed.
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| 10. |
- Wu, Junfang, et al.
(författare)
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Gender differences in the bile acid profiles of APP/PS1 transgenic AD mice
- 2020
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Ingår i: Brain Research Bulletin. - : Elsevier. - 0361-9230 .- 1873-2747. ; 161, s. 116-126
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Tidskriftsartikel (refereegranskat)abstract
- Alzheimer’s disease (AD) is a neurodegenerative disease and presents in the accumulation of amyloid and neurofibrillary tangle. The association between modulations of gut symbiotic microbes with neurological disease via bidirectional gut-brain axis has been well documented. Bile acid (BA) pools in the enterohepatic circulation could be valuable for probing complex biochemical interactions between host and their symbiotic microbiota. Herein we investigated the levels of 28 BAs in several compartments in enterohepatic circulation (including jejunal, ileum, cecum, colon and feces, plasma and liver tissue) by employing an APP/PS1 induced transgenic AD mouse model. We found that BA profiles in AD mice were gender specific. We observed decreased levels of taurine-conjugated primary BAs (TUDCA, TCA, T-α-MCA and T-β-MCA) and increased levels of secondary BA (iso-DCA) in plasma and liver extracts for female AD transgenic mice. In contrast, increased levels of TDCA in liver extracts and decreased levels of T-β-MCA in jejunal content were noted in male AD mice. These observations suggested that perturbations of BA profiles in AD mice displayed clear gender variations. Our study highlighted the roles of gut microbiota on neurodegenerative disease, which could be gender specific.
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