| 1. |
- Allbrand, Marianne, 1958-, et al.
(författare)
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Expression of genes involved in inflammation and growth : does sampling site in human full-term placenta matter?
- 2019
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Ingår i: Journal of Perinatal Medicine. - : Walter de Gruyter. - 0300-5577 .- 1619-3997. ; 47:5, s. 539-546
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To investigate the placental gene expression of substances in the inflammatory cascade and growth factors at nine different well-defined sampling sites in full-term placentas from 12 normal weight healthy non-smoking women with an uncomplicated singleton pregnancy.Methods: All placentas (six girls and six boys) were delivered vaginally. Quantitative real-time polymerase chain reaction was used to analyze toll receptor-2 and -4, interleukin-6 and -8, tumor necrosis factor-α, leptin, ghrelin, insulin-like growth factor-1 and -2, hepatocyte growth factor, hepatocyte growth factor receptor and insulin receptor (IR).Results: The leptin gene and the IR gene showed higher expression in lateral regions near the chorionic plate compared to central regions near the basal plate (P = 0.028 and P = 0.041, respectively).Conclusion: Our results suggest that the sampling site may influence the gene expression for leptin and IR in placental tissue obtained from full-term normal pregnancies. We speculate that this may be due to differences in placental structure and perfusion and may be important when future studies are designed.
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| 2. |
- Allbrand, Marianne, 1958-, et al.
(författare)
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Placental gene expression of inflammatory markers and growth factors : a case control study of obese and normal weight women
- 2015
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Ingår i: Journal of Perinatal Medicine. - : Walter de Gruyter. - 0300-5577 .- 1619-3997. ; 43:2, s. 159-164
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To survey the placental gene expression of inflammatory markers and growth factors in non-smoking obese women with an uncomplicated pregnancy without associated morbidity and delivery at term compared with normal weight women.Methods: Placental tissue samples from 32 obese women (body mass index, BMI >= 35.0 kg/m(2)) were compared with samples from 94 normal weight women (BMI 18.5-25.0 kg/m(2)) matched for age (+/- 1 year), gestational age (+/- 3 days), parity and mode of delivery. Semi-quantitative reverse transcription polymerase chain reaction (RT-PCR) was used to analyse toll receptor-2 and -4, interleukin-6 and -8, tumour necrosis factor-alpha, leptin, adiponectin, insulin-like growth factor-1 and -2, hepatocyte growth factor, hepatocyte growth factor receptor and insulin receptor.Results: There was no significant difference in gene expression in placental tissue samples from obese and normal weight women.Conclusion: We found no difference in the occurrence of inflammatory marker and growth factor mRNA levels in placental tissue samples from a large group of obese women without associated morbidity and with healthy infants compared to a closely matched control group of healthy normal weight women. Compared with the previous studies, this anomalous finding may be explained by the absence of associated morbidity in the obese women in our study.
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| 3. |
- Axelsson, Daniel, et al.
(författare)
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Postpartum infection in relation to maternal characteristics, obstetric interventions and complications
- 2018
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Ingår i: Journal of Perinatal Medicine. - : Walter de Gruyter. - 0300-5577 .- 1619-3997. ; 46:3, s. 271-278
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Tidskriftsartikel (refereegranskat)abstract
- The purpose was to evaluate the association between maternal characteristics, obstetrical interventions/complications and postpartum wound infections (WI), urinary tract infection (UTI) and endometritis. Furthermore, this study aimed to determine the time from delivery to onset of infections after discharge from the hospital. Three large Swedish Medical Health Registers were scrutinized for the period 2005-2012. A total of 582,576 women had 795,072 deliveries. Women with diagnosis codes for WIs, UTIs or endometritis, from delivery to 8 weeks postpartum, were compared to non-infected women. Adjusted odds ratios (OR) and 95% confidence intervals (CI) were estimated. Increasing age and body mass index (BMI) were both associated with increasing prevalence of postpartum infections. WIs were most strongly associated with cesarean section (CS) (OR 17.2; 95% CI 16.1-18.3), 3rd and 4th degree tears (OR 10.7%; 95% CI 9.80-11.9) and episiotomy (OR 10.2; 95% CI 8.94-11.5). Endometritis was associated with anemia (OR 3.16; 95% CI 3.01-3.31) and manual placental removal (OR 2.72; 95% CI 2.51-2.95). UTI was associated with emergency CS (OR 3.46; 95% CI 3.07-3.89) and instrumental delivery (OR 3.70; 95% CI 3.29-4.16). For women discharged from the delivery hospital the peak occurrence of UTI was 6 days postpartum, while for WIs and endometritis it was 7 days postpartum.
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| 4. |
- Birgisdottir, BT, et al.
(författare)
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Reference values for Lactate Pro 2™ in fetal blood sampling during labor: a cross-sectional study
- 2017
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Ingår i: Journal of perinatal medicine. - : Walter de Gruyter GmbH. - 1619-3997 .- 0300-5577. ; 45:3, s. 321-325
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Tidskriftsartikel (refereegranskat)abstract
- Objective:Lactate ProStudy design:A cross-sectional study was conducted at a university hospital in Sweden. A total of 113 laboring women with fetal heart rate abnormalities on cardiotocography (CTG) had FBS carried out. Lactate concentration was measured bedside with both LP1 and LP2 from the same blood sample capillary. A linear regression model was constructed to retrieve a conversion equation to convert LP2 values to LP1 values.Results:LP2 measured higher values than LP1 in all analyses. We found that 4.2 mmol/L with LP1 corresponded to 6.4 mmol/L with LP2. Likewise, 4.8 mmol/L with LP1 corresponded to 7.3 mmol/L with LP2. The correlation between the analyses was excellent (Spearman’s rank correlation, r=0.97).Conclusion:We recommend the following guidelines when interpreting lactate concentration in FBS with LP2: <6.4 mmol/L to be interpreted as normal, 6.4–7.3 mmol/L as preacidemia indicating a follow-up FBS within 20–30 min, and >7.3 mmol/L as acidemia indicating intervention.
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| 5. |
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| 6. |
- Cnattingius, S, et al.
(författare)
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Rates of metabolic acidosis at birth and Apgar score values at 1, 5, and 10 min in term infants: a Swedish cohort study
- 2020
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Ingår i: Journal of perinatal medicine. - : Walter de Gruyter GmbH. - 1619-3997 .- 0300-5577. ; 48:5, s. 514-515
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundMetabolic acidosis, measured in arterial umbilical cord blood at birth, is the most accepted definition of birth asphyxia. The aim of the study was to investigate the rates of metabolic acidosis across the entire range of Apgar score values (0–10) at 1, 5, and 10 min in term infants.MethodsIn a population-based Swedish cohort of births between 2008 and 2013, we included 85,076 term (≥37 weeks) non-malformed infants with information from umbilical arterial blood gas analyses and complete information on Apgar scores (0–10) at 1, 5, and 10 min.ResultsRates of metabolic acidosis generally decreased with increasing Apgar score values. For Apgar score at 1 min, this decrease was consistent from Apgar score 0 (35%) to Apgar score 10 (0%). For Apgar scores at 5 and 10 min, the decrease was consistent for Apgar score values from 6 to 10.ConclusionAlthough there is a close association between Apgar score values and rates of metabolic acidosis, Apgar score is not and should not be used as a measure of birth asphyxia.
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| 7. |
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| 8. |
- Elsmén, Emma, et al.
(författare)
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Impact of sex on perinatal mortality and morbidity in twins
- 2014
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Ingår i: Journal of Perinatal Medicine. - : Walter de Gruyter GmbH. - 0300-5577 .- 1619-3997. ; 42:2, s. 225-231
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Twin studies offer opportunities to investigate mechanisms underlying sex-associated differences in perinatal outcomes. The objective of the study was to investigate sex-related differences in perinatal complications. Study design: A cohort of 16,045 twin pregnancies 32,090 twins - was explored for obstetric complications, perinatal and infant mortality, and neonatal morbidities. Results: Twin pregnancies with a female fetus had an increased risk for preeclampsia, but otherwise there were no pregnancy complications associated with fetal sex. After birth, female-female twins had lower early neonatal and infant mortality, and lower risk for respiratory morbidities than male-male twins at all gestational ages. In unlike-sexed twin pairs, very preterm males had higher respiratory morbidity than females and, females were at higher risk for being growth restricted. Conclusion: Male-male twins have higher respiratory morbidity and neonatal mortality than female-female twins. In unliked-sexed twin pairs, the males seem to be protected by having a female co-twin.
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| 9. |
- Hesselman, Susanne, et al.
(författare)
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Maternal complications in settings where two-thirds of extremely preterm births are delivered by cesarean section
- 2017
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Ingår i: Journal of Perinatal Medicine. - : Walter de Gruyter GmbH. - 0300-5577 .- 1619-3997. ; 45:1, s. 121-127
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To investigate the maternal complications associated with cesarean section (CS) in the extremely preterm period according to the gestational week (GW) and to indication of delivery. Study design: This is a retrospective case-referent study with a review of medical records of women who delivered at 22-27 weeks of gestation (n = 647) at two level III units in Sweden. For abdominal delivery, gestational length was stratified into 22-24 (n = 105) and 25-27 (n = 301) weeks. For comparison, data on women who underwent a CS at term were identified in a register-based database. Results: The rate of CS in extremely preterm births was 62.8%. There was no difference in the complication rates, but types of incisions other than the low transverse incision were required more often at 22-24 (18.1%) weeks than at 25-27 GWs (9.6%) (P = 0.02). Major maternal complications occurred in 6.6% compared with 2.1% in the extremely preterm and term CS, respectively (P < 0.01). A maternal indication of extremely preterm CS increased the risk of complications. Conclusions: Almost two-thirds of the births at 22-27 GWs had an abdominal delivery. No increase in short-term morbidity was observed at 22-24 weeks compared to 25-27 weeks. CS performed extremely preterm had more major complications recorded than cesarean at term. The complications are driven by the underlying maternal condition.
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