Age- and BMI-Associated Expression of Angiogenic Factors in White Adipose Tissue of Children
Abstract
:1. Introduction
2. Results
2.1. General Characteristics of the Ulm Childhood Adipose Tissue Collective
2.2. Tissue Cellularity
2.3. Angiogenic Factors and Age
2.4. Angiogenic Factors and BMI-SDS
2.5. Angiogenic Factors and Adipocyte Size
2.6. Angiogenic Factors and von Willebrand Factor
2.7. Angiogenic Factors in Infants <6 Months
3. Discussion
4. Materials and Methods
4.1. The Ulm Childhood Adipose Tissue Collective
4.2. Processing of the Adipose Tissue Samples
4.3. Histological Sample Preparation
4.4. Determination of the Adipocyte Size
4.5. RNA Isolation and cDNA Synthesis
4.6. Quantitative Real-Time Polymerase Chain Reaction
- 36B4 forw 5′-TGC ATC AGT ACC CCA TTC TAT CAT-3′;
- 36B4 rev 5′-AGG CAG ATG GAT CAG CCA AGA-3′;
- ANGPT1 forw 5′-TGA GAC CCA GGT ACT AAA TCA AAC TTC TCG AC-3′;
- ANGPT1 rev 5′-TGA AGA AGT TGC TTC TCT AGC TTG TAG GTG-3′;
- ANGPT2 forw 5′- ACA GCA GAA TGC AGT ACA GAA CCA GAC G -3′;
- ANGPT2 rev 5′-CAA GTC TCG TGG TCT GAT TTA ATA CTT GGG CT-3′;
- FGF1 forw 5′-GAC CAG CAC ATT CAG CTG CAG CTC AGT G-3′;
- FGF1 rev 5′-ACA AAC ATT CCT CAT TTG GTG TCT GTG AGC CG-3′;
- FGF2 forw 5′-CGA CCC TCA CAT CAA GCT ACA ACT TCA AGC AG-3′;
- FGF2 rev 5′-AGC CAG TAA TCT TCC ATC TTC CTT CAT AGC CA-3′;
- HPRT forw 5′-GAG ATG GGA GGC CAT CAC ATT GTA GCC CTC-3′;
- HPRT rev 5′-CTC CAC CAA TTA CTT TTA TGT CCC CTG TTG ACT GGT C-3′;
- PDGFRa forw 5′-GAA TAA CAT CGG AGG AGA AGT TTC CCA GAG-3′;
- PDGFRa rev 5′-CAT TTG GAA GGA TAG AGG GTA ATG AAA GCT GG-3′;
- TEK forw 5′-CTA GAA GTA CAC CTG CCT CAT GCT CAG CC-3′;
- TEK rev 5′-CAG TTC ACA AGC CTT CTC ACA CGT CCT TCC-3′;
- VEGFA forw 5′-CTT GCC TTG CTG CTC TAC CT-3′;
- VEGFA rev 5′-AGC TGC GCT GAT AGA CAT CC-3′;
- VWF forw 5′-GAC CAA AGA GTC TCC ATG CCC TAT GCC T-3′;
- VWF rev 5′-AGA TGC CCG TTC ACA CCA CTG TTC TCC A-3′.
4.7. Statistical Analysis
Author Contributions
Funding
Conflicts of Interest
Abbreviations
36B4 | Acidic ribosomal phosphoprotein P0 |
ANGPT1 | Angiopoietin-1 |
ANGPT2 | Angiopoietin-2 |
BMI | Body mass index |
FGFs | Fibroblast growth factors |
H&E | Haematoxylin and eosin |
HPRT | Hypoxanthine-guanine phosphoribosyltransferase |
mRNA | Messenger ribonucleic acid |
PDGFRa | Platelet-derived growth factor receptor alpha |
qPCR | Quantitative polymerase chain reaction |
RNA | Ribonucleic acid |
SD | Standard deviation |
SDS | Standard deviation score |
SVCs | Stromal vascular cells |
TEK (TIE-2) | Tunica interna endothelial cell kinase, an angiopoietin receptor |
VEGFA | Vascular endothelial growth factor A |
VWF | Von Willebrand factor |
WAT | White adipose tissue |
WHO | World Health Organization |
Appendix A
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Parameter | n | Mean ± SD | Median | Range |
---|---|---|---|---|
Gender | 45 | 36 male, 9 female | ||
Corrected age [y] | 45 | 1.51 ± 2.18 | 0.24 | −0.04–9.23 |
Weight [kg] | 45 | 8.94 ± 6.30 | 5.62 | 2.07–25 |
Height [cm] | 45 | 72.10 ± 24.83 | 61 | 42–131 |
BMI [kg·m−2] | 45 | 15.16 ± 1.96 | 15.43 | 10.63–18.28 |
BMI-SDS | 45 | 0.09 ± 1.08 | 0.06 | −1.74–2.61 |
Adipocyte diameter [µm] | 35 | 56.94 ± 10.63 | 56.66 | 39.73–88.89 |
Gender | 35 | 28 male, 7 female |
Age | BMI-SDS | Adipocyte Diameter | VWF | ||||||
---|---|---|---|---|---|---|---|---|---|
rs | p | rs | p | rs | p | rs | p | ||
VEGFA | all | 0,262 | 0.086 | −0.106 | 0.491 | 0.176 | 0.320 | 0.388 | 0.009 |
<6 m | 0.321 | 0.118 | 0.091 | 0.666 | 0.021 | 0.930 | 0.492 | 0.013 | |
≥6 m | –0.270 | 0.263 | −0.282 | 0.241 | 0.218 | 0.454 | 0.260 | 0.283 | |
FGF1 | all | 0.437 | 0.003 | 0.157 | 0.303 | 0.525 | 0.001 | 0.634 | <0.001 |
<6 m | 0.687 | <0.001 | 0.296 | 0.151 | 0.547 | 0.012 | 0.566 | 0.003 | |
≥6 m | −0.189 | 0.424 | 0.078 | 0.743 | 0.307 | 0.265 | 0.765 | <0.001 | |
FGF2 | all | 0.750 | <0.001 | 0.017 | 0.913 | 0.429 | 0.010 | 0.418 | 0.004 |
<6 m | 0.665 | <0.001 | 0.259 | 0.211 | 0.257 | 0.274 | 0.619 | 0.001 | |
≥6 m | −0.134 | 0.574 | 0.080 | 0.738 | −0.050 | 0.863 | 0.535 | 0.015 | |
ANGPT1 | all | 0.213 | 0.166 | 0.426 | 0.004 | 0.519 | 0.002 | 0.567 | <0.001 |
<6 m | 0.353 | 0.090 | 0.494 | 0.014 | 0.226 | 0.352 | 0.483 | 0.017 | |
≥6 m | 0.015 | 0.950 | 0.373 | 0.105 | 0.536 | 0.042 | 0.606 | 0.005 | |
ANGPT2 | all | −0.650 | <0.001 | 0.148 | 0.337 | −0.297 | 0.083 | 0.150 | 0.332 |
<6 m | −0.038 | 0.861 | 0.067 | 0.756 | 0.003 | 0.990 | −0.113 | 0.599 | |
≥6 m | −0.325 | 0.162 | 0.429 | 0.059 | 0.214 | 0.442 | 0.594 | 0.006 | |
TEK | all | 0.194 | 0.206 | 0.358 | 0.017 | 0.102 | 0.565 | 0.837 | <0.001 |
<6 m | 0.572 | 0.003 | 0.480 | 0.015 | 0.281 | 0.230 | 0.742 | <0.001 | |
≥6 m | −0.007 | 0.977 | 0.100 | 0.684 | −0.064 | 0.832 | 0.881 | <0.001 |
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Gaebler, N.; Haggenmüller, B.; Kapapa, M.; Serra, A.; Tews, D.; Funcke, J.-B.; Brandt, S.; Ioannidis, V.; Schön, M.; Möller, P.; et al. Age- and BMI-Associated Expression of Angiogenic Factors in White Adipose Tissue of Children. Int. J. Mol. Sci. 2019, 20, 5204. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms20205204
Gaebler N, Haggenmüller B, Kapapa M, Serra A, Tews D, Funcke J-B, Brandt S, Ioannidis V, Schön M, Möller P, et al. Age- and BMI-Associated Expression of Angiogenic Factors in White Adipose Tissue of Children. International Journal of Molecular Sciences. 2019; 20(20):5204. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms20205204
Chicago/Turabian StyleGaebler, Niklas, Benedikt Haggenmüller, Melanie Kapapa, Alexandre Serra, Daniel Tews, Jan-Bernd Funcke, Stephanie Brandt, Valentin Ioannidis, Michael Schön, Peter Möller, and et al. 2019. "Age- and BMI-Associated Expression of Angiogenic Factors in White Adipose Tissue of Children" International Journal of Molecular Sciences 20, no. 20: 5204. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms20205204