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Sigurvinsdottir R, Gisladottir B, Asgeirsdottir BB, Sigfusdottir ID. Sexual Attraction and Non-Suicidal Self-Harm: The Role of Stressors and Psychological Mediators. Arch Sex Behav 2024; 53:1293-1306. [PMID: 38347324 DOI: 10.1007/s10508-023-02792-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 12/14/2023] [Accepted: 12/14/2023] [Indexed: 03/22/2024]
Abstract
Non-suicidal self-harm (NSSH) is a serious concern for the well-being of youth. Stressors relate to greater NSSH risk, such as being non-heterosexual in a heteronormative society. Other stressors may include traumatic experiences. These relationships may be mediated by psychological factors (depressed mood, anxiety, anger, and self-esteem) as well as contextual factors (support from parents and peers). The purpose of this study was to examine NSHH ideation and behavior among Icelandic youth, as well as relationships with stressors and mediators. Students in Icelandic high schools (N = 8921, 50.8% female) completed an in-class survey in the year 2016. Results showed an elevated risk of NSSH ideation and behavior among bisexual and homosexual youth. Mediation analyses showed that, for girls, being bisexual related to greater NSSH ideation and behavior, and these relationships were mediated by depressed mood, anger, and self-esteem, as well as by support from parents and peers. For boys, however, both homosexual and bisexual attraction related to greater risk for NSSH ideation and behavior, which was mediated by depressed mood, anger, and self-esteem. These results suggest that NSSH risk factors vary by gender and, therefore, they may benefit from different interventions to stop and prevent this behavior. This is the first study of its kind in Iceland, where sexual minority stress may need further study within the Nordic context.
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Affiliation(s)
| | | | | | - Inga Dora Sigfusdottir
- Department of Psychology, Reykjavik University, Menntavegur 1, 102, Reykjavik, Iceland
- Icelandic Centre for Social Research and Analysis, Reykjavik, Iceland
- Teachers College, Columbia University, New York, NY, USA
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Nordengen K, Kirsebom B, Richter G, Pålhaugen L, Selnes P, Gisladottir B, Waterloo K, Rongve A, Aarsland D, Fladby T. CSF immune activation in Alzheimer’s disease driven by tau‐ and not amyloid pathology. Alzheimers Dement 2022. [DOI: 10.1002/alz.065354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Kaja Nordengen
- University of Oslo Oslo Norway
- Akershus University Hospital Lørenskog Norway
| | - Bjørn‐Eivind Kirsebom
- Faculty of Health Sciences, UiT The Arctic University of Norway Tromsø Norway
- University Hospital of Northern Norway, Tromsø Tromsø Norway
| | - Grit Richter
- University hospital of North Norway Tromsø Norway
| | - Lene Pålhaugen
- Institute of Clinical Medicine, Campus Ahus, University of Oslo Oslo Norway
- Department of Neurology, Akershus University Hospital Lørenskog Norway
| | - Per Selnes
- Institute of Clinical Medicine, Campus Ahus, University of Oslo Oslo Norway
- Department of Neurology, Akershus University Hospital Lørenskog Norway
| | | | - Knut Waterloo
- University Hospital of Northern Norway, Tromsø Tromsø Norway
- Faculty of health sciences, UIT The Arctic University of Norway Tromsø Norway
| | | | - Dag Aarsland
- King's College London London United Kingdom
- Stavanger University Hospital Stavanger Norway
| | - Tormod Fladby
- Akershus University Hospital Lørenskog Norway
- Institute of Clinical Medicine, Campus Ahus, University of Oslo Oslo Norway
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Kirsebom BE, Wettergreen M, Gisladottir B, Sharma K, Christensen E, Fladby T. Diagnostic accuracy of the monocyte Aβ mid‐domain assay for CSF determined brain amyloid deposition. Alzheimers Dement 2021. [DOI: 10.1002/alz.056435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bjørn Eivind Kirsebom
- University Hospital of Northern Norway Tromsø Tromsø Norway
- Faculty of Health Sciences, UiT The Arctic University of Norway Tromsø Norway
| | | | | | - Kulbhushan Sharma
- Akershus University Hospital Lørenskog Norway
- University of Oslo Lørenskog Norway
| | | | - Tormod Fladby
- Akershus University Hospital Lørenskog Norway
- Institute of Clinical Medicine, Campus Ahus, University of Oslo Oslo Norway
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Wettergreen M, Gisladottir B, Kirsebom BE, Christensen E, Sharma K, Fladby T. Regulation of intracellular innate immune amyloid beta (aβ) clearance. Alzheimers Dement 2021. [DOI: 10.1002/alz.056329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Bjørn Eivind Kirsebom
- University Hospital of Northern Norway Tromsø Norway
- Faculty of Health Sciences, UiT The Arctic University of Norway Tromsø Norway
| | | | - Kulbhushan Sharma
- Akershus University Hospital Lørenskog Norway
- University of Oslo Lørenskog Norway
| | - Tormod Fladby
- Akershus University Hospital Lørenskog Norway
- University of Oslo Lørenskog Norway
- Institute of Clinical Medicine, Campus Ahus, University of Oslo Oslo Norway
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Christensen E, Wettergreen M, Torsetnes SB, Gisladottir B, Fladby T. A new blood‐based biomarker of Aβ clearance: The monocyte Aβ mid‐domain assay. Alzheimers Dement 2021. [DOI: 10.1002/alz.056346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | | | | | - Tormod Fladby
- Akershus University Hospital Lørenskog Norway
- Institute of Clinical Medicine Campus Ahus University of Oslo Oslo Norway
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Torsetnes SB, Wettergreen M, Nordengen K, Gisladottir B, Sharma K, Christensen E, Fladby T. A new biological assay of Aβ clearance: The Aβ mid‐domain immunoassay. Alzheimers Dement 2020. [DOI: 10.1002/alz.042795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | | | | | | | - Tormod Fladby
- Akershus University Hospital Lørenskog Norway
- University of Oslo Oslo Norway
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Kirsebom BE, Nordengen K, Selnes P, Torsetnes SB, Sharma K, Gisladottir B, Fladby T. Sex differences of innate immune activation in amyloid positive predementia cases. Alzheimers Dement 2020. [DOI: 10.1002/alz.046464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Bjørn Eivind Kirsebom
- Faculty of Health Sciences UiT The Arctic University of Norway Tromsø Norway
- University Hospital of Northern Norway Tromsø Norway
| | | | - Per Selnes
- Department of Neurology Akershus University Hospital Lørenskog Norway
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Torsetnes SB, Nordengen K, Wettergreen M, Gisladottir B, Sharma K, Larsen LN, Glover J, Christensen E, Jaenisch R, Fladby T. Transcription of nicotinic acetylcholine receptor A7 in monocytic and patient‐derived microglial cell lines. Alzheimers Dement 2020. [DOI: 10.1002/alz.046271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Tormod Fladby
- Akershus University Hospital Lørenskog Norway
- University of Oslo Oslo Norway
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Selnes P, Nordengen K, Kirsebom BE, Torsetnes SB, Wettergreen M, Gisladottir B, Henjum K, Pålhaugen L, Nilsson L, Fladby T. O1‐01‐06: NEURON‐GLIA INTERACTION MARKERS IN PREDEMENTIA ALZHEIMER'S DISEASE. Alzheimers Dement 2019. [DOI: 10.1016/j.jalz.2019.06.4522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Per Selnes
- Department of Neurology Akershus University Hospital Lørenskog Norway
- Institute of Clinical Medicine, Campus Ahus University of Oslo Oslo Norway
| | - Kaja Nordengen
- University of Oslo Oslo Norway
- Akershus University Hospital Lørenskog Norway
| | - Bjørn-Eivind Kirsebom
- University Hospital of Northern Norway Tromsø Norway
- Faculty of Health Sciences, UIT The Arctic University of Norway Tromsø Norway
| | | | | | | | | | - Lene Pålhaugen
- Department of Neurology Akershus University Hospital Lørenskog Norway
- Institute of Clinical Medicine, Campus Ahus University of Oslo Oslo Norway
| | | | - Tormod Fladby
- Department of Neurology Akershus University Hospital Lørenskog Norway
- University of Oslo Oslo Norway
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Torsetnes SB, Wettergreen M, Gisladottir B, Fladby T. P4‐250: MONOCYTIC THP‐1 CELLS PHAGOCYTIZE AND CATABOLIZE Aβ40, AND THE PROCESS IS ENHANCED BY DHA STIMULATION AT PHYSIOLOGICAL LEVELS. Alzheimers Dement 2018. [DOI: 10.1016/j.jalz.2018.07.071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - Tormod Fladby
- Akershus University HospitalLørenskogNorway
- University of OsloOsloNorway
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Gisladottir B, Gronfeldt B, Kristjansson AL, Sigfusdottir ID. Psychological Well-Being of Sexual Minority Young Adults in Iceland: Assessing Differences by Sexual Attraction and Gender. Sex Roles 2017. [DOI: 10.1007/s11199-017-0847-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Audunsdottir SS, Magnadottir B, Gisladottir B, Jonsson ZO, Bragason BT. The acute phase response of cod (Gadus morhua L.): expression of immune response genes. Fish Shellfish Immunol 2012; 32:360-367. [PMID: 22173271 DOI: 10.1016/j.fsi.2011.11.034] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2011] [Revised: 11/29/2011] [Accepted: 11/30/2011] [Indexed: 05/31/2023]
Abstract
An acute phase response (APR) was experimentally induced in Atlantic cod (Gadus morhua L.) by intramuscular injection of turpentine oil. The change in the expression of immune related genes was monitored in the anterior kidney and the spleen over a period of 7 days. The genes examined were two types of pentraxins, apolipoprotein A1 (ApoA-I), the complement component C3, interleukin-1β (IL-1β), transferrin, cathelicidin, and hepcidin. All genes were constitutively expressed in both organs and their expression amplified by the turpentine injection. A pattern of response was observed both with respect to the organ preference and to the timing of a maximum response. The increased gene expression of the pentraxins, ApoA-I and C3 was restricted to the anterior kidney, the gene expression of IL-1β, cathelicidin, and transferrin increased in both organs, while hepcidin gene expression was only significantly increased in the spleen. The pentraxins and ApoA-I appear to be early mediators of APR in cod, possibly stimulating C3 and IL-1β response, while the antimicrobial peptides may play a minor role. The increase in transferrin gene expression in both organs, and apparent indifference to cortisol release associated with the turpentine injection, suggests that this could be a typical acute phase protein in cod.
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Affiliation(s)
- Sigridur S Audunsdottir
- Institute for Experimental Pathology, University of Iceland, Keldur v. Vesturlandsveg, 112 Reykjavik, Iceland
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Magnadottir B, Audunsdottir SS, Bragason BT, Gisladottir B, Jonsson ZO, Gudmundsdottir S. The acute phase response of Atlantic cod (Gadus morhua): humoral and cellular response. Fish Shellfish Immunol 2011; 30:1124-1130. [PMID: 21338688 DOI: 10.1016/j.fsi.2011.02.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Revised: 02/11/2011] [Accepted: 02/13/2011] [Indexed: 05/30/2023]
Abstract
Intra-muscular injection of turpentine oil was used to induce acute phase response (APR) in Atlantic cod (Gadus morhua L.). The effects on the serum cortisol, total protein, IgM and pentraxin concentration were examined as well as the effects on natural antibody, anti-trypsin and leukocyte respiratory burst activity. The turpentine injection resulted in a 26 fold increase in the cortisol level after 72 h. Slightly reduced serum protein level in both groups was attributed to the restricted feeding during the experimental period. The IgM serum concentration was significantly reduced after 168 h in the turpentine treated fish while the natural antibody activity was not affected. The anti-trypsin activity was initially suppressed but recovered to normal levels at the end of the experiment. The turpentine injection had little effect on the serum level of the pentraxins, CRP-PI and CRP-PII. The respiratory burst activity was significantly suppressed after 72 h. It is concluded that 1) cod shows a relatively slow humoral and cellular response to APR induction, 2) the increase in serum cortisol level may be the key modulator of the mainly suppressive effects on the immune parameters and 3) pentraxins are not typical acute phase proteins in cod.
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Affiliation(s)
- Bergljot Magnadottir
- Institute for Experimental Pathology, University of Iceland, Keldur v. Vesturlandsveg, 112 Reykjavik, Iceland.
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Gisladottir B, Gudmundsdottir S, Brown L, Jonsson ZO, Magnadottir B. Isolation of two C-reactive protein homologues from cod (Gadus morhua L.) serum. Fish Shellfish Immunol 2009; 26:210-219. [PMID: 19081733 DOI: 10.1016/j.fsi.2008.03.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2008] [Revised: 03/18/2008] [Accepted: 03/20/2008] [Indexed: 05/27/2023]
Abstract
Pentraxins are important molecules in innate defence and play a role in the acute phase response of both mammals and fish. Isolation of cod pentraxins by affinity chromatography using phosphorylcholine agarose revealed two pentraxin-like proteins, referred to as PI and PII proteins. These varied in their overall charge, pentameric and subunit molecular size, glycosylation and N-terminal amino acid sequences. The PI protein was homologous with the CRP-like pentraxin previously described in cod whereas the PII protein was a new CRP homologue, which was characterized by substantial individual heterogeneity with regard to subunit size and relative density. The results indicate considerable genetic variations in the cod pentraxins.
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Affiliation(s)
- Berglind Gisladottir
- Institute for Experimental Pathology, University of Iceland, Keldur v. Vesturlandsveg, 112 Reykjavik, Iceland
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