| 1. |
- Akram, Frida Hosseini, et al.
(författare)
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Incidence of Subclinical Hypothyroidism and Hypothyroidism in Early Pregnancy
- 2017
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Ingår i: Journal of Women's Health. - : Mary Ann Liebert Inc. - 1540-9996 .- 1931-843X. ; 26:11, s. 1231-1235
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Tidskriftsartikel (refereegranskat)abstract
- Background: Untreated and subclinical hypothyroidism (SCH) has been associated with adverse pregnancy complications such as increased risk of miscarriage, hypertension, preeclampsia, and preterm delivery. However, in Sweden, screening for thyroid dysfunction during pregnancy is only recommended for women with a high risk of thyroid disease. Therefore, the aim of this study was to determine the incidence of clinical and SCH in women in the first trimester of pregnancy.Materials and Methods: In this prospective study, 1298 pregnant women were divided into three groups: one unselected general screening group (n=611), one low-risk group comprising women without risk factors for thyroid disorder (n=511), and one high-risk group comprising women with an inheritance or suspicion of thyroid disease or undergoing treatment for thyroid disease (n=88). Serum was obtained up to gestational week 13, and thyrotropin (TSH) was analyzed.Results: The incidences of thyroid dysfunction in the three screening groups were 9.8% in the general screening group, 9.6% in the low-risk group, and 10.2%, p=0.948, in the high-risk group. In the women with known hypothyroidism on levothyroxine treatment, 50.6% had serum TSH levels above 2.0mIU/L.Conclusions: High-risk screening is not useful in predicting which women are at risk of thyroid disease in early pregnancy since approximate to 10% of women with SCH or hypothyroidism could not be diagnosed in this way.
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| 2. |
- Elenis, Evangelia, et al.
(författare)
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The histidine-rich glycoprotein A1042G polymorphism and recurrent miscarriage : a pilot study
- 2014
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Ingår i: Reproductive Biology and Endocrinology. - : Springer Science and Business Media LLC. - 1477-7827. ; 12, s. 70-
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Tidskriftsartikel (refereegranskat)abstract
- Background: Histidine-rich Glycoprotein (HRG) has previously been shown to have an impact on implantation and fertility. The aim of this study was to investigate if there is an association between the HRG A1042G single nucleotide polymorphism (SNP) and recurrent miscarriage. Methods: The study was designed as a case-control study and the women were included at University Hospitals in Sweden. 186 cases with recurrent miscarriage were compared with 380 pregnant controls with no history of miscarriage. Each woman was genotyped for the HRG A1042G SNP. Results: The results indicated that the frequency of heterozygous HRG A1042G carriers was higher among controls compared to cases (34.7% vs 26.3%; p < 0.05). In a bivariate regression analysis, a negative association was found between recurrent miscarriage and heterozygous A/G carriers both in the entire study population (OR 0.67, 95% CI 0.45 - 0.99; p < 0.05) as well as in a subgroup of women with primary recurrent miscarriage (OR 0.37, 95% CI 0.16 - 0.84; p < 0.05). These results remained even after adjustment for known confounders such as age, BMI and thyroid disease (OR 0.36, 95% CI 0.15 - 0.84; p < 0.05). Conclusions: Women who are heterozygous carriers of the HRG A1042G SNP suffer from recurrent miscarriage more seldom than homozygous carriers. Thus, analysis of the HRG A1042G SNP might be of importance for individual counseling regarding miscarriage.
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| 3. |
- Husseini-Akram, Frida, et al.
(författare)
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Hyaluronan-binding protein 2 (HABP2) gene variation in women with recurrent miscarriage
- 2018
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Ingår i: BMC Women's Health. - : Springer Science and Business Media LLC. - 1472-6874. ; 18
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Tidskriftsartikel (refereegranskat)abstract
- Background:Idiopathic recurrent miscarriage, defined as three or more consecutive miscarriages, is a distressing early pregnancy complication. Although, the etiology of recurrent miscarriage is still unknown, an aberrant regulation of the endometrial receptivity marker hyaluronan-binding protein 2 (HABP2) has been suggested. The objective of the present study was to investigate the effect of genetic variations of HABP2 in women with idiopathic recurrent miscarriage compared to fertile women.Methods:This study was designed as a case-control study. In total, 165 women who had three or more consecutive miscarriages and 289 fertile women were included in the study. Polymorphisms in the HABP2 gene were analyzed using TaqMan SNP Genotyping Assays. Three polymorphisms in the HABP2 gene, rs1157916, rs2240879 and rs7080536 (Marburg I) were studied.Results:Polymorphism in HABP2 showed no significant difference in women with recurrent miscarriage compared to fertile women, except for rs1157916 minor A allele that was more prevalent among RM patients (p = 0.058). Significantly higher live birth rate was observed among women with three to four miscarriages compared to those with more miscarriages (p = 0.001).Conclusions:Variations in the HABP2 gene did not seem to be involved in the etiology of recurrent miscarriage, while, the number of previous miscarriages had an impact on the live birth rate.
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| 4. |
- Lindgren, Karin E., et al.
(författare)
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Histidine-rich glycoprotein gene polymorphism in patients with recurrent miscarriage
- 2013
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Ingår i: Acta Obstetricia et Gynecologica Scandinavica. - : John Wiley & Sons. - 0001-6349 .- 1600-0412. ; 92:8, s. 974-977
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Tidskriftsartikel (refereegranskat)abstract
- Association between the histidine-rich glycoprotein (HRG) C633T single nucleotide polymorphism (SNP) and recurrent miscarriage was investigated in a case-control study. The cases constituted 187 women with recurrent miscarriage that were compared with 395 controls who had delivered a child and had no history of miscarriage. Blood samples were collected from each woman, genomic DNA was extracted and genotyped for the HRG C633T SNP. In the whole study population, the percentage of miscarriage was the same, regardless of genotype (C/C 31.2%, C/T 32.9% and T/T 32.5%). However, an association between homozygous T/T carriers and recurrent miscarriage was detected in a subgroup of women with primary recurrent miscarriage (odds ratio 2.44, 95% CI 1.01-5.92). Our results indicate an important role for the HRG C633T SNP in the occurrence of recurrent miscarriage.
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| 5. |
- Wikner, Birgitta Norstedt, et al.
(författare)
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Maternal use of thyroid hormones in pregnancy and neonatal outcome
- 2008
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Ingår i: Acta Obstetricia et Gynecologica Scandinavica. - : Wiley. - 1600-0412 .- 0001-6349. ; 87:6, s. 617-627
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Tidskriftsartikel (refereegranskat)abstract
- Objective. To describe neonatal outcome including the presence of congenital malformations in infants born to women substituted with thyroid hormones, and the maternal characteristics of these women. Design. Register study based on prospectively collected data in relation to delivery. Setting. Swedish Health Registers. Population. All pregnant women (n = 848,468) and all infants born (n = 861,989) in Sweden from 1 July 1995 to 31 December 2004. Methods. Women who reported the use of thyroid hormones in early pregnancy or obtained a prescription for thyroid hormones later in pregnancy (n = 9,866), as well as their infants (n = 10,055) were identified from the Swedish Medical Birth Register. The reference population consisted of all women giving birth and their offspring during the same time interval. Main outcome measures. Neonatal outcome, malformations and maternal characteristics. Data were analyzed with adjustments for identified confounders. Results. Women using thyroxine had an increased rate of pre-eclampsia, diabetes (pre-existing or gestational), cesarean sections and inductions of labour compared to women in the reference population. The risk for preterm birth was marginally increased (OR 1.13, 95% CI 1.03-1.25). Neonatal thyroid disease was found in eight infants (seven with thyreotoxicosis and one unspecified), the expected number was 0.2. No further anomalies in neonatal diagnoses were found. A small but statistically significant risk for congenital malformations (OR = 1.14, 95% CI 1.05-1.26) was found. Conclusion. Women on thyroid substitution during pregnancy had an increased risk for some pregnancy complications, but their infants were only slightly affected.
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