Id |
Subject |
Object |
Predicate |
Lexical cue |
T1 |
0-124 |
Sentence |
denotes |
TIEG1 deficiency confers enhanced myocardial protection in the infarcted heart by mediating the Pten/Akt signalling pathway. |
T2 |
125-344 |
Sentence |
denotes |
The transforming growth factor (TGF)-β-inducible early gene-1 (TIEG1) plays a crucial role in modulating cell apoptosis and proliferation in a number of diseases, including pancreatic cancer, leukaemia and osteoporosis. |
T3 |
345-423 |
Sentence |
denotes |
However, the functional role of TIEG1 in the heart has not been fully defined. |
T4 |
424-506 |
Sentence |
denotes |
In this study, we first investigated the role of TIEG1 in ischaemic heart disease. |
T5 |
507-687 |
Sentence |
denotes |
For in vitro experiments, cardiomyocytes were isolated from both TIEG1 knockout (KO) and wile-type (WT) mice, and the apoptotic ratios were evaluated after a 48‑h ischaemic insult. |
T6 |
688-782 |
Sentence |
denotes |
A cell proliferation assay was performed after 7 days of incubation under normoxic conditions. |
T7 |
783-880 |
Sentence |
denotes |
In addition, the angiogenic capacity of endothelial cells was determined by tube formation assay. |
T8 |
881-992 |
Sentence |
denotes |
For in vivo experiments, a model of myocardial infarction (MI) was established using both TIEG1 KO and WT mice. |
T9 |
993-1111 |
Sentence |
denotes |
Echocardiography was performed at 3 and 28 days post-MI, whereas the haemodynamics test was performed 28 days post-MI. |
T10 |
1112-1431 |
Sentence |
denotes |
Histological analyses of apoptosis, proliferation, angiogenesis and infarct zone assessments were performed using terminal deoxynucleotidyltransferase-mediated dUTP nick-end labelling (TUNEL) staining, BrdU immunostaining, α-smooth muscle actin (α-SMA)/CD31 immunostaining and Masson's trichrome staining, respectively. |
T11 |
1432-1628 |
Sentence |
denotes |
Changes in the expression of related proteins caused by TIEG1 deficiency were confirmed using both reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blot analysis. |
T12 |
1629-1840 |
Sentence |
denotes |
Our results demonstrated that the absence of TIEG1 prevented cardiomyocytes from undergoing apoptosis and promoted higher proliferation; it stimulated the proliferation of endothelial cells in vitro and in vivo. |
T13 |
1841-2081 |
Sentence |
denotes |
Improved cardiac function and less scar formation were observed in TIEG1 KO mice, and we also observed the altered expression of phosphatase and tensin homolog (Pten), Akt and Bcl-2/Bax, as well as vascular endothelial growth factor (VEGF). |
T14 |
2082-2245 |
Sentence |
denotes |
On the whole, our findings indicate that the absence of TIEG1 plays a cardioprotective role in ischaemic heart disease by promoting changes in Pten/Akt signalling. |