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Baubeta Fridh E, Andersson M, Thuresson M, Sigvant B, Kragsterman B, Johansson S, Hasvold P, Falkenberg M, Nordanstig J. Amputation Rates, Mortality, and Pre-operative Comorbidities in Patients Revascularised for Intermittent Claudication or Critical Limb Ischaemia: A Population Based Study. Eur J Vasc Endovasc Surg 2017; 54:480-486. [DOI: 10.1016/j.ejvs.2017.07.005] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 07/09/2017] [Indexed: 10/19/2022]
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Andersson M, Kolodziej B, Andersson RE, Andersson M, Eriksson T, Ramsing A, Westman L, Björkman J, Håkansson HO, Lundström T, Björkman H, Johansson P, Hjert O, Edin R, Ekström A, Wenander C, Wallon C, Andersson P, Frisk J, Arvidsson B, Lantz R, Wallin G, Wickberg Å, Stenberg E, Erixon C, Schmidt W, Räntfors J, Göthberg G, Styrud J, Elias K, Boström L, Kretschmar G, Jonsson M, Brav C, Nilsson I, Kamran F, Hammarqvist F, Rutqvist J, Almström M, Hedberg M, Lindh V, Rosemar A, Wangberg H, Gustafsson J, Neovius G, Juhlin C, Christofferson R, Månsson C, Zittel T, Fagerström N. Randomized clinical trial of Appendicitis Inflammatory Response score-based management of patients with suspected appendicitis. Br J Surg 2017; 104:1451-1461. [PMID: 28730753 DOI: 10.1002/bjs.10637] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 05/23/2017] [Accepted: 05/31/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND The role of imaging in the diagnosis of appendicitis is controversial. This prospective interventional study and nested randomized trial analysed the impact of implementing a risk stratification algorithm based on the Appendicitis Inflammatory Response (AIR) score, and compared routine imaging with selective imaging after clinical reassessment. METHOD Patients presenting with suspicion of appendicitis between September 2009 and January 2012 from age 10 years were included at 21 emergency surgical centres and from age 5 years at three university paediatric centres. Registration of clinical characteristics, treatments and outcomes started during the baseline period. The AIR score-based algorithm was implemented during the intervention period. Intermediate-risk patients were randomized to routine imaging or selective imaging after clinical reassessment. RESULTS The baseline period included 1152 patients, and the intervention period 2639, of whom 1068 intermediate-risk patients were randomized. In low-risk patients, use of the AIR score-based algorithm resulted in less imaging (19·2 versus 34·5 per cent; P < 0·001), fewer admissions (29·5 versus 42·8 per cent; P < 0·001), and fewer negative explorations (1·6 versus 3·2 per cent; P = 0·030) and operations for non-perforated appendicitis (6·8 versus 9·7 per cent; P = 0·034). Intermediate-risk patients randomized to the imaging and observation groups had the same proportion of negative appendicectomies (6·4 versus 6·7 per cent respectively; P = 0·884), number of admissions, number of perforations and length of hospital stay, but routine imaging was associated with an increased proportion of patients treated for appendicitis (53·4 versus 46·3 per cent; P = 0·020). CONCLUSION AIR score-based risk classification can safely reduce the use of diagnostic imaging and hospital admissions in patients with suspicion of appendicitis. Registration number: NCT00971438 ( http://www.clinicaltrials.gov).
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Galli S, Stocchero M, Andersson M, Karlsson J, He W, Lilin T, Wennerberg A, Jimbo R. The effect of magnesium on early osseointegration in osteoporotic bone: a histological and gene expression investigation. Osteoporos Int 2017; 28:2195-2205. [PMID: 28349251 PMCID: PMC5486930 DOI: 10.1007/s00198-017-4004-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Accepted: 03/08/2017] [Indexed: 12/27/2022]
Abstract
UNLABELLED Magnesium has a key role in osteoporosis and could enhance implant osseointegration in osteoporotic patients. Titanium implants impregnated with Mg ions were installed in the tibia of ovariectomized rats. The release of Mg induced a significant increase of bone formation and the expression of anabolic markers in the peri-implant bone. INTRODUCTION The success of endosseous implants is highly predictable in patients possessing normal bone status, but it may be impaired in patients with osteoporosis. Thus, the application of strategies that adjuvate implant healing in compromized sites is of great interest. Magnesium has a key role in osteoporosis prevention and it is an interesting candidate for this purpose. In this study, the cellular and molecular effects of magnesium release from implants were investigated at the early healing stages of implant integration. METHODS Osteoporosis was induced in 24 female rats by means of ovariectomy and low-calcium diet. Titanium mini-screws were coated with mesoporous titania films and were loaded with magnesium (test group) or left as native (control group). The implants were inserted in the tibia and femur of the rats. One, 2 and 7 days after implantation, the implants were retrieved and histologically examined. In addition, expression of genes was evaluated in the peri-implant bone tissue at day 7 by means of quantitative polymerase chain reactions with pathway-oriented arrays. RESULTS The histological evaluation revealed that new bone formation started already during the first week of healing for both groups. However, around the test implants, new bone was significantly more abundant and spread along a larger surface of the implants. In addition, the release of magnesium induced a significantly higher expression of BMP6. CONCLUSIONS These results provide evidence that the release of magnesium promoted rapid bone formation and the activation of osteogenic signals in the vicinity of implants placed in osteoporotic bone.
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Värendh M, Johannisson A, Hrubos-Strøm H, Andersson M. Sleep quality improves with endoscopic sinus surgery in patients with chronic rhinosinusitis and nasal polyposis. Rhinology 2017; 55:45-52. [PMID: 28019643 DOI: 10.4193/rhin16.065] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Chronic Rhinosinusitis with Nasal Polyposis (CRSwNP) is a chronic disease that has a major impact on generic and disease-specific quality of life. Little is known about the influence of CRSwNP on sleep and what effect surgery for CRSwNP has on sleep quality. The aim of the study was to investigate sleep quality in patients with CRSwNP before and after endoscopic surgery. METHODOLOGY Forty-two patients filled out four validated sleep questionnaires and one sino/nasal, disease specific quality of life questionnaire before surgery and three months later. A healthy control group filled out the same questionnaires at baseline and after three months. RESULTS An impact on sleep patterns was found in all sleep questionnaires and surgery clearly improved the quality of sleep. The Sino-nasal outcome test sum score decreased from median 51,5 to 26,5. Epworth sleepiness scale showed a decline in score from score 7.5 to 6.0. Surgery also reduced the risk for obstructive sleep apnoea in 13 patients evaluated by the Berlin Questionnaire and Multivariable Apnea Prediction Index. CONCLUSIONS Patients with CRSwNP had impaired sleep quality, daytime sleepiness, nasal patency, and risk for sleep apnea, all of which improved after corrective surgery.
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Andersson M, Blanchet D, Nylén H, Jacqmin R. Influence of Local Spectral Variations on Control-Rod Homogenization in Fast Reactor Environments. NUCL SCI ENG 2017. [DOI: 10.13182/nse14-106] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Ören Ü, Hiller M, Andersson M. IDACstar: A MCNP Application to Perform Realistic Dose Estimations from Internal or External Contamination of Radiopharmaceuticals. RADIATION PROTECTION DOSIMETRY 2017; 174:406-411. [PMID: 27475750 DOI: 10.1093/rpd/ncw221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 07/01/2016] [Indexed: 06/06/2023]
Abstract
A Monte Carlo-based stand-alone program, IDACstar (Internal Dose Assessment by Computer), was developed, dedicated to perform radiation dose calculations using complex voxel simulations. To test the program, two irradiation situations were simulated, one hypothetical contamination case with 600 MBq of 99mTc and one extravasation case involving 370 MBq of 18F-FDG. The effective dose was estimated to be 0.042 mSv for the contamination case and 4.5 mSv for the extravasation case. IDACstar has demonstrated that dosimetry results from contamination or extravasation cases can be acquired with great ease. An effective tool for radiation protection applications is provided with IDACstar allowing physicists at nuclear medicine departments to easily quantify the radiation risk of stochastic effects when a radiation accident has occurred.
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Råberg L, Hagström Å, Andersson M, Bartkova S, Scherman K, Strandh M, Tschirren B. Evolution of antigenic diversity in the tick-transmitted bacteriumBorrelia afzelii: a role for host specialization? J Evol Biol 2017; 30:1034-1041. [DOI: 10.1111/jeb.13075] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 03/01/2017] [Accepted: 03/20/2017] [Indexed: 01/22/2023]
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Ejlertsen B, Tuxen MK, Jakobsen EH, Jensen MB, Knoop AS, Hoejris I, Ewertz M, Balslev E, Vestlev PM, Kenholm J, Nielsen DL, Bechmann T, Andersson M, Cold S, Nielsen HM, Maae E, Carlsen D, Mouridsen HT. Abstract S6-03: DBCG 07-READ: A randomized phase III trial comparing six cycles of docetaxel and cyclophosphamide (DC) to three cycles of epirubicin and cyclophosphamide followed by three cycles of docetaxel (EC-D) in patients with early breast cancer. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-s6-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: DBCG 07-READ was designed to compare sequential EC followed by D with DC in patients with early, TOP2A normal breast cancer as a retrospective evaluation of the DBCG 89D trial suggested that these patients would not benefit from an anthracycline.
Methods: This is a multicenter open-label randomized phase III trial. Three groups of women were eligible following completely resected unilateral invasive TOP2A normal (TOP2A gene to centromere 17 ratio of 0.8 to 2.0) breast cancer by mastectomy or breast conserving surgery in combination with axillary clearance or a negative sentinel node biopsy; 1: Age 18 to 39 years; 2: Age 40 to 75 years and estrogen receptor (ER) negative (<10% positive) and/or HER2 positive tumor; and 3: Age 40 to 59 years and ER ≥ 10% positive and either node positive, ductal carcinoma and grade II-III, or tumor size > 20 mm. Eligible patients were required to have a Charlson Comorbidity (CC) Index < 2 and to be without signs of distant metastasis. Patients were randomized to receive 6 cycles of DC (docetaxel 75 mg/m2 and cyclophosphamide 600 mg/m2) every 3 weeks or 3 cycles of EC (epirubicin 90 mg/m2 and cyclophosphamide 600 mg/m2) followed by 3 cycles of D (docetaxel 100 mg/m2) every 3 weeks. In case of a CC Index of 1 or 2 chemotherapy was administered at a reduced dose-intensity. Adjuvant endocrine treatment, trastuzumab and radiotherapy were administered according to the guidelines of the DBCG. The primary endpoint was disease-free survival (DFS), and secondary endpoints were overall survival (OS) and distant disease-free survival (DDFS).
Results: Between July 2008 and December 2012 we (12 DBCG centers) randomly assigned 2006 eligible patients to DC (N=1008) or EC-D (N=998). Patient and tumor characteristics were balanced by treatment groups. The median estimated potential follow-up is 5.4 years and the 5-year DFS was 88.0%; 95% CI 85.8 to 90.0 in the EC-D arm and 87.9%; 95% CI 85.7 to 89.9 in the DC arm. No significant difference in the risk of DFS events HR=1.03; 95% CI 0.80 to 1.32; p=0.84 or mortality HR=1.11; 95% 0.79 to 1.56; p=0.55 was observed in the intent to treat analysis. Patient-reported toxicity will be compared for the two chemotherapy regimens.
Conclusion: The READ trial gives evidence to support no outcome benefit from anthracycline in patients with TOP2A normal ealy breast cancer.
Citation Format: Ejlertsen B, Tuxen MK, Jakobsen EH, Jensen M-B, Knoop AS, Hoejris I, Ewertz M, Balslev E, Vestlev PM, Kenholm J, Nielsen DL, Bechmann T, Andersson M, Cold S, Nielsen HM, Maae E, Carlsen D, Mouridsen HT. DBCG 07-READ: A randomized phase III trial comparing six cycles of docetaxel and cyclophosphamide (DC) to three cycles of epirubicin and cyclophosphamide followed by three cycles of docetaxel (EC-D) in patients with early breast cancer [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr S6-03.
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Andersson M, Blanchet D, Nylén H, Jacqmin R. Control Rod Calculation in Axially Heterogeneous Fast Reactors—I: Influence of the Absorber Environment. NUCL SCI ENG 2017. [DOI: 10.1080/00295639.2016.1272358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Andersson M, Blanchet D, Nylén H, Jacqmin R. Control Rod Calculation in Axially Heterogeneous Fast Reactors—II: Impact of Three-Dimensional Homogenization on Core Parameters. NUCL SCI ENG 2017. [DOI: 10.1080/00295639.2016.1272359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Örtqvist L, Andersson M, Strandqvist A, Nordenström A, Frisén L, Holmdahl G, Nordenskjöld A. Psychosocial outcome in adult men born with hypospadias. J Pediatr Urol 2017; 13:79.e1-79.e7. [PMID: 28087231 DOI: 10.1016/j.jpurol.2016.08.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Accepted: 08/29/2016] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Hypospadias, which is a surgically treated congenital malformation of the male urethra, may have a negative impact on quality of life. This aspect has previously been subject to limited research. This study examined the long-term psychosocial outcome of a large cohort of adult males born with hypospadias. OBJECTIVE The purpose of this case-control study was to assess a possible negative influence on the psychosocial outcome in adult males with hypospadias. STUDY DESIGN Males with hypospadias treated in Sweden and aged ≥18 years old participated in this follow-up study. Age-matched men and university students were recruited as controls. The participants answered a questionnaire designed to reflect the subjective quality of life, social factors, need of support and follow-up, and the perceived impact of the disease upon upbringing. It also looked at the validated Psychological General Well-Being (PGWB) questionnaire and Relationship Questionnaire (RQ). RESULTS AND DISCUSSION A total of 167 patients (median age 34 years, 63% distal, 24% mid, and 13% proximal hypospadias) and 169 controls (median age 33 years) participated in the study. Patients had their first operation at 4 years of age (median) and the median follow-up time was 29 years following the first surgery. Men with hypospadias had a comparable total quality of life level with a mean total PGWB score of 82 (normal range 78-83) compared with 85.6 in controls. Scores on wellbeing and vitality were lower, even if the differences were small. Hypospadias did not affect marital status, presence of children in the family, frequency of employment or experience of bullying. These men more often lived at home with their parents (P=0.001) and had a lower level of education (P=0.004), even if the educational level in both patients and controls was high compared with the general Swedish population. Patients with proximal hypospadias were shorter compared with controls (P=0.003), which was consistent with the prenatal growth restriction associated with hypospadias. The group with proximal hypospadias expressed a greater need for medical (45.5%) follow-up compared with mid (28.2%) and distal (18.1%) cases (P=0.001). Patients with proximal hypospadias tended to avoid close relationships because of fear of being hurt. CONCLUSIONS The findings suggested that patients treated for hypospadias have a good HRQoL, can be expected to have a normal psychosocial life, and marry and have children. Repeated follow-up and psychological support during childhood/adolescence is however of great importance for patients with more proximal hypospadias.
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Fashandi H, Lai CC, Dahlqvist M, Lu J, Rosen J, Hultman L, Greczynski G, Andersson M, Lloyd Spetz A, Eklund P. Ti2Au2C and Ti3Au2C2 formed by solid state reaction of gold with Ti2AlC and Ti3AlC2. Chem Commun (Camb) 2017; 53:9554-9557. [DOI: 10.1039/c7cc04701k] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ti2Au2C and Ti3Au2C2 formation by Au/Ti2AlC and Au/Ti3AlC2 exchange-reactions imply thermodynamic guidelines for identifying materials where these reactions may occur.
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Örtqvist L, Fossum M, Andersson M, Nordenström A, Frisén L, Holmdahl G, Nordenskjöld A. Sexuality and fertility in men with hypospadias; improved outcome. Andrology 2016; 5:286-293. [DOI: 10.1111/andr.12309] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2016] [Revised: 11/06/2016] [Accepted: 11/08/2016] [Indexed: 11/26/2022]
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Rajan N, Andersson M, Sinclair N, Fehr A, Hodgson K, Lord C, Kazakov D, Vanecek T, Ashworth A, Stenman G. 146 Overexpression of MYB drives proliferation of CYLD-defective cylindroma cells. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Lundberg K, Rydnert F, Broos S, Andersson M, Greiff L, Lindstedt M. C-type Lectin Receptor Expression on Human Basophils and Effects of Allergen-Specific Immunotherapy. Scand J Immunol 2016; 84:150-7. [DOI: 10.1111/sji.12457] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 06/20/2016] [Indexed: 01/01/2023]
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Ulfsdotter L, Lundberg A, Andersson M. Rehoming of pet rabbits (Oryctolagus cuniculus) in Sweden: an investigation of national advertisement. Anim Welf 2016. [DOI: 10.7120/09627286.25.3.303] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Avaliani N, Andersson M, Runegaard AH, Woldbye D, Kokaia M. DREADDs suppress seizure-like activity in a mouse model of pharmacoresistant epileptic brain tissue. Gene Ther 2016; 23:760-766. [PMID: 27416078 DOI: 10.1038/gt.2016.56] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 06/20/2016] [Indexed: 12/11/2022]
Abstract
Epilepsy is a neurological disorder with a prevalence of ≈1% of general population. Available antiepileptic drugs (AEDs) have multiple side effects and are ineffective in 30% of patients. Therefore, development of effective treatment strategies is highly needed, requiring drug-screening models that are relevant and reliable. We investigated novel chemogenetic approach, using DREADDs (designer receptors exclusively activated by designer drugs) as possible inhibitor of epileptiform activity in organotypic hippocampal slice cultures (OHSCs). The OHSCs are characterized by increased overall excitability and closely resemble features of human epileptic tissue. Studies suggest that chemically induced epileptiform activity in rat OHSCs is pharmacoresistant to most of AEDs. However, high-frequency electric stimulus train-induced bursting (STIB) in OHSCs is responsive to carbamazepine and phenytoin. We investigated whether inhibitory DREADD, hM4Di, would be effective in suppressing STIB in OHSC. hM4Di is a mutated muscarinic receptor selectively activated by otherwise inert clozapine-N-oxide, which leads to hyperpolarization in neurons. We demonstrated that this hyperpolarization effectively suppresses STIB in mouse OHSCs. As we also found that STIB in mouse OHSCs is resistant to common AED, valproic acid, collectively our findings suggest that DREADD-based strategy may be effective in suppressing epileptiform activity in a pharamcoresitant epileptic brain tissue.
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Andersson M, Larsson I. SAT0641-HPR Reasons To Stop Drinking Alcohol among Patients with Rheumatoid Arthritis – A Mixed Method Study. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Botermans JAM, Olsson ACH, Andersson M, Bergsten CH, Svendsen J. Performance, health and behaviour of organic growing-finishing pigs in two different housing systems with or without access to pasture. ACTA AGR SCAND A-AN 2016. [DOI: 10.1080/09064702.2016.1158308] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Andersson M, Selin F, Järvholm B. Asbestos exposure and the risk of sinonasal cancer. Occup Med (Lond) 2016; 66:326-31. [PMID: 26940471 DOI: 10.1093/occmed/kqw018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND While the increased risk of lung cancer and mesothelioma is well established, the relationship between exposure to asbestos dust and sinonasal cancer is less clear. AIMS To study the risk of sinonasal cancer in relation to asbestos dust exposure. METHODS A retrospective cohort study of construction workers, linked to the Swedish Cancer Registry. Participants were classified into four exposure groups; heavy, medium, low or very low exposure to asbestos, according to the incidence of pleural mesothelioma in their occupational group. Standardized incidence ratios (SIRs) and relative risks (RRs) were analysed, adjusted for age and smoking habits. The risks of adenocarcinoma and squamous cell carcinoma were investigated separately. RESULTS Among the 280222 subjects, there was no increased risk of sinonasal cancer compared to the general population [SIR 0.85, 95% confidence interval (CI) 0.68-1.03], or any dose-response relationship with exposure to asbestos. The highest RR was found in the low exposure group (RR 1.25, 95% CI 0.69-2.28) and the lowest RR was found in the group with the highest exposure to asbestos (RR 0.71, 95% CI 0.33-1.53). No significantly increased risk or dose-response association could be found for adenocarcinoma or squamous cell carcinoma when analysed separately. CONCLUSIONS This study did not find an increased risk of developing sinonasal cancer after asbestos exposure.
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Gårdebjer S, Andersson M, Engström J, Restorp P, Persson M, Larsson A. Using Hansen solubility parameters to predict the dispersion of nano-particles in polymeric films. Polym Chem 2016. [DOI: 10.1039/c5py01935d] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new surface modification followed by calculation of Hansen solubility parameters to predict dispersability of cellulose nanocrystals in LDPE is presented.
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Knaust S, Andersson M, Hjort K, Klintberg L. Influence of surface modifications and channel structure for microflows of supercritical carbon dioxide and water. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2015.07.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Graf W, Andersson M, Åkerlund JE, Börjesson L. Long-term outcome after surgery for Crohn's anal fistula. Colorectal Dis 2016; 18:80-5. [PMID: 26338142 DOI: 10.1111/codi.13106] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Accepted: 05/18/2015] [Indexed: 01/06/2023]
Abstract
AIM Treatment of Crohn's anal fistula remains challenging and little is known about factors associated with healing. The aim of this study was to assess the rate of healing after surgical treatment and analyse clinical variables related to healing. METHOD A total of 119 patients [63 women, mean age 36 (±13.7) years] with histopathologically verified Crohn's disease underwent a surgical procedure for anal fistula at four main referral centres in Sweden, January 1998 to December 2009. Baseline and treatment-related variables were recorded and analysed for correlation with fistula healing at a final follow-up after a mean of 7.2 (median 7.1, 1.0-17.5) years. RESULTS Of the 119 patients 62 (52%) were healed at final follow-up. Fourteen healed after one procedure and the remaining 48 healed after a further median of 4.0 (2-20) procedures. Ten (8%) patients were subjected to a proctectomy. Final healing was more common in patients operated with a procedure aiming at eradicating the fistula (P = 0.0001), without proctitis (P = 0.02) and a shorter duration of Crohn's disease (P = 0.0019). CONCLUSION Long-term healing of a Crohn's anal fistula can be expected in about half of the patients, usually after repeated surgical treatment. The probability for cure was higher when a curative operation was performed in a patient without proctitis and with a shorter duration of Crohn's disease. An attempt to close a Crohn's anal fistula is thus often worthwhile.
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Attia S, Katila T, Andersson M. The Effect of Sperm Morphology and Sire Fertility on Calving Rate of Finnish Ayrshire AI Bulls. Reprod Domest Anim 2015; 51:54-8. [PMID: 26660630 DOI: 10.1111/rda.12645] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 10/31/2015] [Indexed: 11/27/2022]
Abstract
Good-quality semen is a prerequisite for successful and profitable artificial insemination (AI) of modern dairy cattle. Fertility of the bulls is evaluated with andrological examinations and semen analyses, such as morphology. However, little attention has been paid to the inheritance of bull fertility. In this study, we correlated sperm morphology, birth year and station of 695 AI bulls with calving rate (CR). Sperm morphology was clearly associated with CR underlining the usefulness of morphological examination in the assessment of fertility. The correlation between the proportion of normal spermatozoa and CR was significant (p < 0.001). No significant differences were detected between stations or birth years. We also compared the CR of 695 AI bulls with the CR of their 27 sires to study the inheritance of fertility. Sire's CR did not correlate with the CR of the sons (p = 0.218). This result indicates that at least when sires of acceptable CR are used to produce sons for use in AI the inheritance of CR is not significantly correlated.
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