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Moeckli R, Kyroudi A, Ghandour S, Matzinger O, Petersson K, Ozsahin M, Bourhis J, Pachoud M. PO-0899: Dosimetric evaluation of deliverable and navigated Pareto optimal plans generated with MCO. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)40891-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Jones R, Cheung A, Coleman T, Ballard P, D'Cruz C, Schuller A, Frigault M, Gu Y, Sai Y, Weiguo S, Ren Y, Qing W, Lindbom L, Petersson K. 392 Using modelling & simulation to integrate mouse PK–PD-efficacy with preliminary human PK data to inform the Phase II doses and schedule for the experimental c-Met inhibitor AZD6094 (Volitinib). Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70518-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mejàre IA, Bergenholtz G, Petersson K, Tranæus S. Estimates of sensitivity and specificity of electric pulp testing depend on pulp disease spectrum: a modelling study. Int Endod J 2014; 48:74-8. [PMID: 24579698 DOI: 10.1111/iej.12277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Accepted: 02/26/2014] [Indexed: 12/01/2022]
Abstract
AIM To demonstrate how the spectrum of diseased pulps may influence sensitivity and specificity in diagnostic studies on pulp status. METHODOLOGY An original sample from a previous study consisting of 59 teeth scheduled for root canal treatment was used where the relationship between the response to electric pulp testing and the visual status of the pulp was evaluated. To alter the spectrum of diseased pulps, a hypothetical sample of asymptomatic teeth with deep caries lesions was added to the original sample. Sensitivity and specificity were then compared for the two samples. RESULTS In the original sample of 59 teeth, sensitivity was 72% and specificity 90%. When the spectrum of diseased pulps was altered, sensitivity decreased to 67% and specificity increased to 97%. The change in disease spectrum also decreased the prevalence of necrotic pulps. CONCLUSIONS The spectrum of diseased pulps included in a diagnostic study on the accuracy of electric pulp testing, and indirectly also disease prevalence (here pulp necrosis), influences estimates of sensitivity and specificity. This implies that estimates of diagnostic accuracy from one study with a particular tooth population spectrum may not apply to another tooth population with a different disease spectrum.
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Petersson K, Engström P, Knöös T, Ceberg C. OC-0385: A deliverability comparison of equivalent dual-arc VMAT plans generated in two different TPSs. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30490-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Fransson H, Petersson K, Davies JR. Effects of bacterial products on the activity of odontoblast-like cells and their formation of type 1 collagen. Int Endod J 2013; 47:397-404. [DOI: 10.1111/iej.12160] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 06/29/2013] [Indexed: 01/12/2023]
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Tajudin AA, Petersson K, Lenshof A, Swärd-Nilsson AM, Aberg L, Marko-Varga G, Malm J, Lilja H, Laurell T. Integrated acoustic immunoaffinity-capture (IAI) platform for detection of PSA from whole blood samples. LAB ON A CHIP 2013; 13:1790-6. [PMID: 23515524 PMCID: PMC4207374 DOI: 10.1039/c3lc41269e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
On-chip detection of low abundant protein biomarkers is of interest to enable point-of-care diagnostics. Using a simple form of integration, we have realized an integrated microfluidic platform for the detection of prostate specific antigen (PSA), directly in anti-coagulated whole blood. We combine acoustophoresis-based separation of plasma from undiluted whole blood with a miniaturized immunoassay system in a polymer manifold, demonstrating improved assay speed on our Integrated Acoustic Immunoaffinity-capture (IAI) platform. The IAI platform separates plasma from undiluted whole blood by means of acoustophoresis and provides cell free plasma of clinical quality at a rate of 10 uL/min for an online immunoaffinity-capture of PSA on a porous silicon antibody microarray. The whole blood input (hematocrit 38-40%) rate was 50 μl min(-1) giving a plasma volume fraction yield of ≈33%. PSA was immunoaffinity-captured directly from spiked female whole blood samples at clinically significant levels of 1.7-100 ng ml(-1) within 15 min and was subsequently detected via fluorescence readout, showing a linear response over the entire range with a coefficient of variation of 13%.
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English C, Veeger A, Finan E, Grossman-Garber D, Petersson K. Recruitment and Retention of Students Using the Academic Roadmap. J Acad Nutr Diet 2012. [DOI: 10.1016/j.jand.2012.06.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Petersson K, Gebre-Medhin M, Ceberg C, Engström P, Knöös T, Kjellén E. PO-0655 REDUCING HAEMATOLOGICAL TOXICITY FOR ADULT PATIENTS RECEIVING CRANIOSPINAL IRRADIATION WITH HELICAL TOMOTHERAPY. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70988-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Pigg M, List T, Petersson K, Lindh C, Petersson A. Diagnostic yield of conventional radiographic and cone-beam computed tomographic images in patients with atypical odontalgia. Int Endod J 2011; 44:1092-101. [DOI: 10.1111/j.1365-2591.2011.01923.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Petersson K, Ceberg C, Engström P, Knoos T. SU-E-T-809: A Grading-Study Based Tool to Assist in the Choice of Treatment Modality. Med Phys 2011. [DOI: 10.1118/1.3612773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Petersson K, Enmark M, Ceberg C, Knöös T. 1250 poster INCREASED PATIENT THROUGHPUT FOR TREATMENT WITH HELICAL TOMOTHERAPY. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71372-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Fransson H, Petersson K, Davies JR. Dentine sialoprotein and Collagen I expression after experimental pulp capping in humans using Emdogain®Gel. Int Endod J 2010; 44:259-67. [DOI: 10.1111/j.1365-2591.2010.01824.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Hegaard HK, Ottesen B, Hedegaard M, Petersson K, Henriksen TB, Damm P, Dykes AK. The association between leisure time physical activity in the year before pregnancy and pre-eclampsia. J OBSTET GYNAECOL 2010; 30:21-4. [DOI: 10.3109/01443610903315686] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Petersson K, Benedek H, Ceberg C, Engström P, Knöös T. EVALUATION OF SHAREPLAN – A COMPARISON WITH IMRT PLANS GENERATED WITH ONCENTRA MASTERPLAN. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)72770-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Hegaard HK, Petersson K, Hedegaard M, Ottesen B, Dykes AK, Henriksen TB, Damm P. Sports and leisure-time physical activity in pregnancy and birth weight: a population-based study. Scand J Med Sci Sports 2009; 20:e96-102. [PMID: 19422639 DOI: 10.1111/j.1600-0838.2009.00918.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
We examined the association between sports and other leisure-time physical activities during pregnancy and birth weight of babies born after 37 completed weeks of gestation. All Danish-speaking pregnant women attending routine antenatal care at the Department of Obstetrics, Aarhus University Hospital, Denmark, from August 1989 to September 1991 were invited to participate in the study. A total of 4458 healthy women who delivered after 37 completed gestational weeks participated in this study. The associations between sports (0, 1-2, 3+ h/week) or leisure-time physical activity (sedentary, light, and moderate to heavy) and birth weight were examined by linear and logistic regression and adjusted for potential confounding factors such as smoking, parity, schooling, pre-pregnancy body mass index and gestational age. The results showed that pregnant women who practiced sports or were moderate to heavy leisure-time physical active during the early second or the early third trimester gave birth to infants with a similar birth weight as inactive women. The proportion of newborns with a low (<2500 g) or a high birth weight (>/=4500 g) was also unchanged. In conclusion, in this large population-based study, we found no association between sports and leisure-time physical activity and low-birth weight, high-birth weight, or average-birth weight.
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Sandgren A, Thulesius H, Petersson K, Fridlund B. 8084 ORAL Doing good care – a study of palliative home nursing care. EJC Suppl 2007. [DOI: 10.1016/s1359-6349(07)71586-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Hallberg AC, Kristiansson R, Beckman A, Petersson K, Råstam L, Håkansson A. Fathers and their children's health: a telephone interview study. Acta Paediatr 2007; 96:1083-7. [PMID: 17577343 DOI: 10.1111/j.1651-2227.2007.00350.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To study fathers' perception of, and involvement in, their children's health. DESIGN Telephone interviews according to a structured guide. SETTING County of Skåne, Sweden. MAIN OUTCOME MEASURES Answers regarding care and upbringing of child, child's health and ill health, and role of father. SUBJECTS 237 fathers of small children. RESULTS Fathers seem to be involved in their children to a large extent, both in caring and playing activities with their children. Most of them (82%) think that the child's health is good, and half of them (55%) have, at some time, contacted a doctor. The fathers mention security, love and commitment as important factors for being a good father, and almost all (97%) think that they are good fathers. Yet, only slightly more than half of them (54%) state that they have sufficient time for the child. CONCLUSIONS Today, fathers are subject to quite different expectations to participate actively in their children's everyday life than was the case for previous generations. Therefore, more studies of fathers' involvement in their children are needed, as well as a new approach within the health care system to fathers' participation.
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Eriksen HM, Dimitrov V, Rohlin M, Petersson K, Svensäter G. The oral ecosystem: implications for education. EUROPEAN JOURNAL OF DENTAL EDUCATION : OFFICIAL JOURNAL OF THE ASSOCIATION FOR DENTAL EDUCATION IN EUROPE 2006; 10:192-6. [PMID: 17038010 DOI: 10.1111/j.1600-0579.2006.00414.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
We propose a model that is applicable to oral health education. The model describes the oral cavity in a complexity-based ecological context. This concept includes the premise that factors from different organisational levels (biological, individual, community, society) interact in a complex way with the potential to 'stress' the ecosystem and thereby provoke changes. This mode of action complies with the understanding of the oral cavity as a complex adaptive system. An ecological model is actively used in the undergraduate problem-based curriculum at the Faculty of Odontology, Malmö University, Sweden and has recently been applied as a conceptual basis for the new dental curriculum being established at the University of Tromsø in Northern Norway. The purpose is to encourage and promote an ecological, health-oriented view and to stimulate reflections on premises for oral health and diseases in an integrated context.
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Olsson H, Petersson K, Rohlin M. Formation of a hard tissue barrier after pulp cappings in humans. A systematic review. Int Endod J 2006; 39:429-42. [PMID: 16674738 DOI: 10.1111/j.1365-2591.2006.01116.x] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To evaluate the evidence on the formation of a hard tissue barrier after pulp capping in humans. METHODOLOGY A PubMed and CENTRAL literature search with specific indexing terms and a hand search were made. The authors assessed the level of evidence of each publication as high, moderate or low. Based on this, the evidence grade of the conclusions was rated as strong, moderately strong, limited or insufficient. RESULTS The initial search process resulted in a total of 171 publications. After reading the abstracts and hand searching the reference lists of the retrieved publications, 107 studies were retrieved in full-text and interpreted. After the interpretation, 21 studies remained and were included in the systematic review and given a level of evidence. No study had a high level of evidence, one study had moderate and 20 studies had a low level of evidence. There was heterogeneity between the studies; therefore, no meta-analysis was performed. The majority of studies on pulp capping using calcium hydroxide based materials reported formation of hard tissue bridging, studies on other pulp capping materials such as bonding agents presented inferior results. The evidence grade was insufficient. CONCLUSIONS Insufficient evidence grade does not necessarily imply that there is no effect of a pulp capping procedure or that it should not be used. Rather, the insufficient evidence underpins the need for high-quality studies.
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Olsson H, Davies JR, Holst KE, Schröder U, Petersson K. Dental pulp capping: effect of Emdogain Gel on experimentally exposed human pulps. Int Endod J 2005; 38:186-94. [PMID: 15743422 DOI: 10.1111/j.1365-2591.2004.00932.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM To investigate the effect of Emdogain Gel (Biora AB, Malmo, Sweden), consisting of a enamel matrix derivative (EMD) in a propylene glycol alginate (PGA) vehicle, on experimentally exposed human pulps and to register postoperative symptoms. METHODOLOGY Nine pairs of contralateral premolars scheduled for extraction on orthodontic indications were included. Following a superficial pulp amputation performed with a small (016) diamond bur, either EMDgel or a mix of calcium hydroxide and sterile saline was placed at random in contact with the pulp wound. The subjects made records of symptoms and were also interviewed about pain/discomfort by a blinded examiner. After 12 weeks the teeth were extracted, prepared and subjected to light microscopic examination in which the inflammation and newly formed hard tissue in the pulp were analysed. Immunohistochemistry was performed using affinity-purified rabbit anti-EMD polyclonal antibodies. RESULTS Postoperative symptoms were less frequent in the EMDgel-treated than in the calcium hydroxide-treated teeth, especially during the first six weeks. In the EMDgel-treated teeth, new tissue partly filled the space initially occupied by the gel and hard tissue was formed alongside the exposed dentine surfaces and in patches in the adjacent pulp tissue. EMD was detected in the areas where new hard tissue had been formed. The wound area of the EMDgel-treated teeth exhibited inflammation in the majority of the teeth whereas less inflammation was seen in the calcium hydroxide-treated teeth where the hard tissue was formed as a bridge. CONCLUSIONS In the EMDgel-treated teeth, postoperative symptoms were less frequent and the amount and pattern of hard tissue formation were markedly different than in the teeth treated with calcium hydroxide. However, the operative procedure and the formulation with EMD in a PGA vehicle do not seem to be effective for the formation of a hard tissue barrier.
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Lindqvist G, Hakansson A, Petersson K. Informal Home Caregiving in a Gender Perspective: A Selected Literature Review. ACTA ACUST UNITED AC 2004. [DOI: 10.1177/010740830402400406] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Abstract
Superantigens (SAGs) cause a massive T-cell proliferation by simultaneously binding to major histocompatibility complex (MHC) class II on antigen-presenting cells and T-cell receptors (TCRs) on T cells. These T-cell mitogens can cause disease in host, such as food poisoning or toxic shock. The best characterized groups of SAGs are the bacterial SAGs secreted by Staphylococcus aureus and Streptococcus pyogenes. Despite a common overall three-dimensional fold of these SAGs, they have been shown to bind to MHC class II in different ways. Recently, it has also been shown that SAGs have individual preferences in their binding to the TCRs. They can interact with various regions of the variable beta-chain of TCRs and at least one SAG seems to bind to the alpha-chain of TCRs. In this review, different subclasses of SAGs are classified based upon their binding mode to MHC class II, and models of trimolecular complexes of MHC-SAG-TCR molecules are described in order to reveal and understand the complexity of SAG-mediated T-cell activation.
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Ekfors H, Petersson K. 1171 Patients suffering from lung cancer. Experiences during radiotherapy. EJC Suppl 2003. [DOI: 10.1016/s1359-6349(03)91197-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Sandgren A, Thulesius H, Petersson K. 1229 Emotional processing — how nurses survive emotionally while caring for cancer patients. EJC Suppl 2003. [DOI: 10.1016/s1359-6349(03)91255-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Wolf E, Petersson K, Petersson A, Nilner M. Long-lasting orofacial pain--a study of 109 consecutive patients referred to a pain group. SWEDISH DENTAL JOURNAL 2002; 25:129-36. [PMID: 11813449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The aim was to register and evaluate the orofacial pain condition, with special focus on the equalities/inequalities between the sexes, in consecutive patients referred to the pain group at the Centre for Oral Health Sciences in Malmö, Sweden. The 109 patients, 85 (78%) women and 24 (22%) men, were referred to the pain group during the years 1988 to 1993 and were clinically examined using a standardised procedure. Pain duration of one year or more was experienced by 83% of the patients. The pain onset was related to dental care or toothache by 56% of the patients. Temporomandibular disorders were the most common diagnoses (52%) and were more common among women than among men (p < 0.05). Multiple pain locations were frequently reported, range 1-47 locations, and the women had significantly (p < 0.05) more pain locations than the men. Equalities between the sexes were more frequent than inequalities among patients referred for long-lasting orofacial pain. It can be discussed whether the sex difference in the prevalence of pain of musculoskeletal origin emerges from biological differences or can be explained by different psychosocial circumstances.
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