| 1. |
|
|
| 2. |
|
|
| 3. |
|
|
| 4. |
|
|
| 5. |
|
|
| 6. |
|
|
| 7. |
- Ahmad, T, et al.
(författare)
-
Diabetic osteopathy and the IGF system in the Goto-Kakizaki rat
- 2008
-
Ingår i: Growth hormone & IGF research : official journal of the Growth Hormone Research Society and the International IGF Research Society. - : Elsevier BV. - 1096-6374. ; 18:5, s. 404-411
-
Tidskriftsartikel (refereegranskat)
|
|
| 8. |
|
|
| 9. |
|
|
| 10. |
|
|
| 11. |
|
|
| 12. |
|
|
| 13. |
- Olausson, Hanna, et al.
(författare)
-
A longitudinal study of the insulin-like growth factor system before, during and after pregnancy in healthy women
-
Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- The maternal insulin-like growth factor (IGF)-system is considered to influence fetal growth. In this longitudinal study of 23 healthy women we aimed 1) to assess maternal serum levels of IGF-I, IGF-II, IGF binding protein (IGFBP)-1, IGFBP-3 and protease activity against IGFBP-3 before, during and after pregnancy, and 2) to relate these levels in early and late pregnancy to fetal and birth weight. Serum was collected before pregnancy, in weeks 8, 14, 20, 32 and 35 of pregnancy and 2 weeks postpartum. IGF-I, IGF-II, IGFBP-1, and IGFBP-3 were analyzed with radioimmuno/radiometric assays and protease activity with Western blot. Fetal weight was measured by means of ultrasound (week 31 of pregnancy) and birth weight was recorded. IGF-I was initially decreased during pregnancy, compared to before conception. This early decrease was not correlated with fetal or birth weight. In late pregnancy, IGF-I and protease activity were positively related to fetal weight, whereas from week 20 of pregnancy IGFBP-1 showed an inverse association with birth weight. We suggest that in healthy pregnant women there is a fine-tuned balance within the maternal IGF-system, with components With either promoting or restricting influences on fetal growth. The results indicate that maternal IGFBP-1 cguld be used from mid-pregnancy as a marker for birth weight.
|
|
| 14. |
- Olausson, Hanna, 1975-, et al.
(författare)
-
Longitudinal study of the maternal insulin-like growth factor system before, during and after pregnancy in relation to fetal and infant weight
- 2008
-
Ingår i: Hormone Research. - : S. Karger AG. - 0301-0163 .- 1423-0046. ; 69:2, s. 99-106
-
Tidskriftsartikel (refereegranskat)abstract
- Background: The maternal insulin-like growth factor (IGF) system is considered to be involved in fetal growth regulation. However, available data linking this system to fetal growth are contradictory and incomplete.Aims: To measure components of the IGF system before, during and after pregnancy in healthy women and to relate these results, and their changes during pregnancy, to fetal weight (gestational week 31) and birth weight.Methods: Serum concentrations of IGF-I, IGF-II, IGF-binding protein (IGFBP)-1, IGFBP-3 and IGFBP-3 protease activity were assessed in 23 women before conception, at weeks 8, 14, 20, 32 and 35 of pregnancy and 2 weeks postpartum. The data were analyzed using simple and multiple linear regression.Results: One third of the variability in fetal weight was explained by IGF-I in combination with IGFBP-3 protease activity, both assessed at gestational week 32 (p = 0.013). Birth weight was negatively correlated (r = –0.43 to –0.59) with IGFBP-1 at gestational week 20 (p = 0.041), 32 (p = 0.012) and 35 (p = 0.003).Conclusion: We propose there is a finely tuned balance among the components of the IGF system, providing a means for fetal growth regulation.
|
|
| 15. |
- Strage, Emma, et al.
(författare)
-
Relationship among Insulin Resistance, Growth Hormone, and Insulin-Like Growth Factor I Concentrations in Diestrous Swedish Elkhounds
- 2014
-
Ingår i: Journal of Veterinary Internal Medicine. - : Wiley. - 0891-6640 .- 1939-1676. ; 28:2, s. 419-428
-
Tidskriftsartikel (refereegranskat)abstract
- Background In the dog, the normal estrous cycle includes a prolonged luteal phase. Progesterone stimulates local canine mammary growth hormone (GH) production, which may act systemically and contribute to insulin resistance. Swedish Elkhounds are predisposed to progesterone-related diabetes mellitus, and the relationship among insulin resistance, GH, and insulin-like growth factor I (IGF-I) is of particular interest. Objective To study insulin resistance in relation to GH and IGF-I in nondiabetic Swedish Elkhounds during diestrus. We also assessed whether alterations in these hormones could predict diestrus-linked diseases and all-cause mortality. Animals Eighty-four privately owned female intact Swedish Elkhounds >4years of age. Methods Blood sampling and clinical examination during luteal phase, with a follow-up questionnaire after 20months. Insulin resistance was calculated by homeostasis model assessment (HOMA-IR). Results In multivariable regression analysis, GH was positively associated with HOMA-IR (P=.009). An increase in GH of 1ng/mL was associated with a 12.7% increase in HOMA-IR. Moreover, C-peptide was positively associated with IGF-I (P=.04), and an increase in C-peptide of 0.1ng/mL was associated with a 6.9% increase in IGF-I. Structural equation modeling supported these results. Twenty-three animals were found to have previously unrecognized mammary masses and had higher GH (P<.0001) and IGF-I (P=.007) than dogs without mammary masses (n=61). There was no association between high GH and IGF-I concentrations at sampling and future mammary masses. Conclusion We showed that GH was strongly associated with insulin resistance in older Swedish Elkhounds during diestrus.
|
|
| 16. |
|
|
