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- Nordqvist, Sarah, 1962-
(författare)
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Biological Markers of Fertility
- 2014
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Infertility affects 15 % of couples, which corresponds to 60 - 80 million worldwide. The microenvironments in which the oocyte, embryo and fetus mature are vital to the establishment and development of a healthy pregnancy. Different biological systems, such as angiogenesis, the immune system and apoptosis need to be adequately regulated for pregnancy to occur and progress normally. The overall aim of this thesis was to investigate the impact of Histidine-rich glycoprotein (HRG) and Src homology 2 domain-containing adapter protein B (SHB) on human female fertility.HRG is a plasma protein that regulates angiogenesis, the immune system, coagulation/fibrinolysis and apoptosis, by building complexes with various ligands. The impact of HRG on fertility is studied here for the first time. HRG is present in follicular fluid, the Fallopian tube, endometrium, myometrium and placenta. HRG distribution within embryo nuclei depends on developmental stage. Blastocysts express and secrete HRG. The HRG C633T single nucleotide polymorphism (SNP) appears to affect the chance of pregnancy and, correspondingly, parameters associated with pregnancy in IVF. Additionally, this HRG genotype may increase the risk in IVF of only developing embryos unfit for transfer.SHB is an adaptor protein involved in intracellular signaling complexes that regulate angiogenesis, the immune system and cell proliferation/apoptosis. Shb knockout mice have altered oocyte/follicle maturation and impaired embryogenesis. The impact of three SHB polymorphisms (rs2025439, rs13298451 and rs7873102) on human fertility is studied for the first time. The SNP prevalences did not differ between infertile and fertile women. BMI, gonadotropin dosages, the percentage of immature oocytes, the number of fertilized oocytes, the percentage of good-quality embryos and the day of embryo transfer seems to be affected by SHB genotype.In conclusion, HRG and SHB appear to influence female fertility. They are potential biomarkers that might be used for predicting pregnancy chance in infertile women. Knowledge of these genotypes may improve patient counseling and individualization of treatment.
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| 2. |
- Wallin Lundell, Inger, 1958-
(författare)
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Induced Abortions and Posttraumatic Stress - Is there any relation? : A Swedish multi-centre study
- 2014
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Introduction: Induced abortion is a common medical intervention. Whether psychological sequelae might follow induced abortion has long been a subject of concern among researchers, and there is lack of knowledge about the relationship between posttraumatic disorder (PTSD) and induced abortion. Aims: To study and compare PTSD, posttraumatic stress symptoms (PTSS) and anxiety- and depressive symptoms among women seeking abortion, allowing for demographic variables. Further aims were to assess risk factors and to assess PTSD and PTSS following induced abortion in relation to experienced care at the clinic. Methods: This was a multi-centre cohort study targeting women who requested an induced abortion at the outpatient clinics of the gynaecology and obstetrics departments of six public hospitals in Sweden. All women who requested an induced abortion before the end of gestational week 12 were approached for participation. PTSD, PTSS, anxiety- and depressive symptoms, personality traits and women’s perceptions of abortion care were measured by means of questionnaires. Measurements were made at the first visit before the abortion as well as three- and six-months thereafter. Data collection was performed from September 2009 to January 2011. Results: 1,514 women filled out the questionnaire before the abortion. Abortion-seeking women did not suffer from PTSD to a greater extent than the general Swedish female population. Few women (51/720) developed PTSD or PTSS after the abortion, 11 did so due to trauma experience related to the abortion. Women at risk of posttraumatic stress were more likely to be young, having anxiety- or depressive symptoms and personality traits related to neuroticism. Furthermore, women with PTSD or PTSS were more likely to perceive certain aspects of the abortion care as deficient. Conclusions: The vast majority of women coped well with the induced abortion. Few developed posttraumatic stress post abortion. The majority did so because of trauma experiences unrelated to the induced abortion. Young women and women with mental distress are vulnerable groups that need to be paid attention to in abortion care. These women are at risk for negative experiences of the abortion care, and may be at risk of PTSD or PTSS post abortion
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