| 1. |
- Bergquist, Annika, et al.
(author)
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Perinatal events and the risk of developing primary sclerosing cholangitis
- 2006
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In: World Journal of Gastroenterology. - : Baishideng Publishing Group Inc.. - 1007-9327 .- 2219-2840. ; 12:37, s. 6037-6040
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Journal article (peer-reviewed)abstract
- AIM: To investigate whether perinatal events, intrauterine or postpartum, are associated with the development of primary sclerosing cholangitis (PSC) later in life.METHODS: Birth records from 97 patients with adult PSC in Sweden were reviewed. Information on perinatal events including medications and complications during pregnancy, gestation length, birth weight and length were collected. Two control children of the same sex were selected for each subject. Conditional multiple logistic regression was used to assess associations of the perinatal measures with development of PSC.RESULTS: No significant associations were found between gestational age, birth length, breastfeeding, and the majority of medical complications including infections or medication during pregnancy for the mothers or postpartum for the children. Vaginal bleeding and peripheral oedema showed associations with PSC, with matched odds ratios of 5.70 (95% CI, 1.13-28.83) and 2.28 (95% CI, 1.04-5.03), respectively. CONCLUSION: The associations of vaginal bleeding and oedema with subsequent PSC cannot readily be explained, so our findings do not strongly support the hypothesis of a significant role of perinatal events as a risk for the development of PSC later in life.
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| 2. |
- Matsakas, Leonidas, et al.
(author)
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A novel hybrid organosolv: Steam explosion method for the efficient fractionation and pretreatment of birch biomass
- 2018
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In: Biotechnology for Biofuels. - : Springer Science and Business Media LLC. - 1754-6834 .- 1754-6834. ; 11:1
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Journal article (peer-reviewed)abstract
- Background: The main role of pretreatment is to reduce the natural biomass recalcitrance and thus enhance saccharification yield. A further prerequisite for efficient utilization of all biomass components is their efficient fractionation into well-defined process streams. Currently available pretreatment methods only partially fulfill these criteria. Steam explosion, for example, excels as a pretreatment method but has limited potential for fractionation, whereas organosolv is excellent for delignification but offers poor biomass deconstruction. Results: In this article, a hybrid method combining the cooking and fractionation of conventional organosolv pretreatment with the implementation of an explosive discharge of the cooking mixture at the end of pretreatment was developed. The effects of various pretreatment parameters (ethanol content, duration, and addition of sulfuric acid) were evaluated. Pretreatment of birch at 200 °C with 60% v/v ethanol and 1% w/wbiomassH2SO4was proven to be the most efficient pretreatment condition yielding pretreated solids with 77.9% w/w cellulose, 8.9% w/w hemicellulose, and 7.0 w/w lignin content. Under these conditions, high delignification of 86.2% was demonstrated. The recovered lignin was of high purity, with cellulose and hemicellulose contents not exceeding 0.31 and 3.25% w/w, respectively, and ash to be < 0.17% w/w in all cases, making it suitable for various applications. The pretreated solids presented high saccharification yields, reaching 68% at low enzyme load (6 FPU/g) and complete saccharification at high enzyme load (22.5 FPU/g). Finally, simultaneous saccharification and fermentation (SSF) at 20% w/w solids yielded an ethanol titer of 80 g/L after 192 h, corresponding to 90% of the theoretical maximum. Conclusions: The novel hybrid method developed in this study allowed for the efficient fractionation of birch biomass and production of pretreated solids with high cellulose and low lignin contents. Moreover, the explosive discharge at the end of pretreatment had a positive effect on enzymatic saccharification, resulting in high hydrolyzability of the pretreated solids and elevated ethanol titers in the following high-gravity SSF. To the best of our knowledge, the ethanol concentration obtained with this method is the highest so far for birch biomass.
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| 3. |
- Matsakas, Leonidas, et al.
(author)
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Lignin-first biomass fractionation using a hybrid organosolv – Steam explosion pretreatment technology improves the saccharification and fermentability of spruce biomass
- 2019
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In: Bioresource Technology. - : Elsevier. - 0960-8524 .- 1873-2976. ; 273, s. 521-528
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Journal article (peer-reviewed)abstract
- For a transition to a sustainable society, fuels, chemicals, and materials should be produced from renewable resources. Lignocellulosic biomass constitutes an abundant and renewable feedstock; however, its successful application in a biorefinery requires efficient fractionation into its components; cellulose, hemicellulose and lignin. Here, we demonstrate that a newly established hybrid organosolv – steam explosion pretreatment can effectively fractionate spruce biomass to yield pretreated solids with high cellulose (72% w/w) and low lignin (delignification up to 79.4% w/w) content. The cellulose-rich pretreated solids present high saccharification yields (up to 61% w/w) making them ideal for subsequent bioconversion processes. Moreover, under high-gravity conditions (22% w/w) we obtained an ethanol titer of 61.7 g/L, the highest so far reported for spruce biomass. Finally, the obtained high-purity lignin is suitable for various advanced applications. In conclusion, hybrid organosolv pretreatment could offer a closed-loop biorefinery while simultaneously adding value to all biomass components.
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| 4. |
- Moll, Ulrika, et al.
(author)
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Impact of pregestational weight and weight gain during pregnancy on long-term risk for diseases
- 2017
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In: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 12:1
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Journal article (peer-reviewed)abstract
- Objective: The aim of this study was to analyse the impact of maternal BMI at start of pregnancy and maternal weight gain during pregnancy on the risk of various diseases later in life. Methods: In a population-based cohort from southern Sweden, women with at least one delivery registered in the Swedish Medical Birth Register ten or more years before answering a health questionnaire were identified (n = 13,608). Complete data were found in 3,539 women. Results: Women with BMI >25 at start of pregnancy had increased risk of developing obesity (OR 21.9), diabetes (OR 6.4), cardiac disease (OR 2.7), endocrine diseases (OR 2.3), and other morbidity (OR 1.4), compared with women of normal weight. A high weight gain (>15 kg) during pregnancy was associated to later risk of overweight (OR 2.0) and obesity (OR 2.2), but not diabetes, cardiac disease, or endocrine diseases. A positive association was found between low weight gain and the risk of developing psychiatric disorders (OR 1.6). Conclusions: A high BMI at start of pregnancy significantly increased the risk of several diseases later in life. However, a high weight gain during pregnancy was only significant for future overweight and obesity. These findings have implications for both pregestational intervention and post gestational follow up of obese and overweight women.
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| 5. |
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| 6. |
- Moll, Ulrika, et al.
(author)
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Pregnancies in prediabetic women
- 2008
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In: Diabetologia. - : Springer Science and Business Media LLC. - 1432-0428 .- 0012-186X. ; 51:S1, s. 467-468
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Conference paper (peer-reviewed)
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| 7. |
- Moll, Ulrika, et al.
(author)
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Women with a predisposition for diabetes have an increased risk of pregnancy complications, especially in combination with pregestational overweight
- 2020
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In: BMC Pregnancy and Childbirth. - : Springer Science and Business Media LLC. - 1471-2393. ; 20
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Journal article (peer-reviewed)abstract
- BACKGROUND: Overweight and gestational diabetes are risk factors for pregnancy complications. We hypothesized that the metabolic impact of overweight on pregnancy outcome, would be different if it was combined with a predisposition for diabetes. The aim of this study was to compare the outcome of pregnancies in women with diabetes diagnosed later in life, to the outcome of pregnancies of women who did not develop diabetes. METHODS: Women in a population-based cohort who also were registered in the Swedish Medical Birth Registry (n = 4738) were included. A predisposition for diabetes (GDM or diabetes after pregnancy) was found in 455 pregnancies. The number of pregnancies with maternal BMI ≥ 25 kg/m2 and without diabetes were 2466, and in 10,405 pregnancies the mother had a BMI < 25 kg/m2 without diabetes at any time. Maternal BMI, gestational length, gestational weight gain, frequency of caesarean section, infant birth weight, frequency of large for gestational age (LGA) and Apgar score were retrospectively compared. RESULTS: Pregnancies with normal maternal BMI ≤25 kg/m2, with predisposition for diabetes had a higher frequency of LGA (11.6% vs. 2.9%; p < 0.001), a higher frequency of macrosomia (28.6% vs. 17.6%; p < 0.001), and a shorter gestational length (39.7 vs. 40 weeks; p = 0.08) when compared to pregnancies in women without a predisposition for diabetes. In addition, pregnancies with both maternal predisposition for diabetes and BMI ≥ 25 kg/m2 there was a higher frequency of LGA (23.3% vs. 7.1%; p < 0.001), caesarean section (24.0% vs. 14.9%, p = 0.031) compared to pregnancies in women who were only overweight. A predisposition for diabetes significantly increases the risk of macrosomia (OR1.5; 95% CI 1.07-2.15; p = 0.02). CONCLUSIONS: In pregnancy, there is an increased frequency of LGA, macrosomia and caesarean section if the woman has a predisposition for diabetes. The frequency of overweight young women is increasing, and it is urgent to identify pregnant women with a predisposition to diabetes. How to distinguish the women with the highest risk for adverse pregnancy outcome and the highest risk of future disease, remains to be studied.
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| 10. |
- Olsson, Ing-Marie, et al.
(author)
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Feasibility and Relevance of an Intervention with Systematic Screening as a Base for Individualized Rehabilitation in Breast Cancer Patients : A Pilot Trial of the ReScreen Randomized Controlled Trial
- 2022
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In: Journal of Multidisciplinary Healthcare. - : Dove Medical Press Ltd.. - 1178-2390. ; 15, s. 1057-1068
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Journal article (peer-reviewed)abstract
- Background: A substantial proportion of women with breast cancer (BC) experience a wide range of long-term persistent and troublesome side effects related to the disease and its treatment. The ReScreen randomized controlled trial is conducted aiming to evaluate the effect of early screening of distress followed by individualized rehabilitation after primary BC treatment. Purpose: To examine recruitment, retention, distribution of distress, relevance of intervention and reported problems in a pilot trial of the ReScreen RCT. Patients and methods: Based on international research, a cutoff of ≥7 on the Distress Thermometer was used to identify women in need of extended support. Those who reported high distress were randomized to intervention group (IG, n = 9) or control group (CG, n = 9), while women with low distress formed an observational group (OG, n = 67). Self-reported data was collected at baseline, 2 weeks and 3, 6, 9, and 12 months after start of treatment. The participants were recruited from a BC unit in Sweden. Descriptive statistics were used for analyses. Results: Eighty-five patients consented to participate. The recruitment rate was 73%, answer frequency was 98%, 64%, 95%, and retention rate was 100%, 56%, 91% in the IG, CG and OG, respectively. Few systematic errors were identified. When exploring the distribution of distress, it was evident that the participants scoring ≥7 were fewer (21.2%) than reported in previous studies (34-43%). The most commonly problems reported were in line with previous reports of symptoms, including fatigue and worry. Conclusion: The satisfactory rates of inclusion and data collection and the few systematic errors indicate that the ReScreen study is feasible if well planned and executed. To identify patients in need of extended support, an adjustment of the cutoff in the main study is indicated. Based on self-reported problems, the intervention was found relevant in this context.
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