Differential expression profiles and functional prediction of tRNA-derived small RNAs in plasma of patients with aortic dissection during deep hypothermic circulatory arrest
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ABSTRACT:
PROVIDER: PRJNA721384 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR14213440.fastq.gz | Fastqsanger.gz | |||
| SRR14213441.fastq.gz | Fastqsanger.gz | |||
| SRR14213442.fastq.gz | Fastqsanger.gz | |||
| SRR14213443.fastq.gz | Fastqsanger.gz | |||
| SRR14213444.fastq.gz | Fastqsanger.gz |
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Project description:The purpose of this study was to detect the expression profile of tsRNA during deep hypothermia circulatory arrest, and to find possible regulatory factors according to the changes in its expression level, in the hope of providing an effective organ protection strategy for this process.Three blood samples were collected from a central veins line into ethylenediaminetetraacetic acid (EDTA) tubes as follows: T1 (before starting circulatory arrest), T2 (15 min after initiation of DHCA), T3 (after declamping the left common carotid artery and before rewarming). A total of 286 commonly expressed tsRNAs were identified in the T1 and T2 groups, 68 tsRNAs specifically expressed in the T1 group, and 44 tsRNAs specifically expressed in the T2 group. A total of 290 commonly expressed tsRNAs were identified in the T2 and T3 groups, 64 tsRNAs specifically expressed in the T2 group, and 43 tsRNAs specifically expressed in the T3 group. Next, four tsRNAs were selected to be verified by qRT-PCR. In summary, this study innovatively proposed the correlation between the deep hypothermic circulatory arrest process and the expression profile of tsRNA, and evaluated the expression level and regulation mode of tsRNA. A preliminary exploration of its potential biological role in the process of deep hypothermic circulatory arrest has been carried out, which can provide a better basis and a more comprehensive explanation for the organ protection mechanism of deep hypothermic circulatory arrest. And in further research, we are expected to achieve targeted protection of organs by overexpressing or inhibiting the corresponding tsRNA.
2023-04-29 | GSE171909 | GEO
Project description:The organ-level molecular response to cardiac surgery with cardiopulmonary bypass (CPB) remains inadequately understood and may be heterogeneous. Here, we measured organ-specific gene expression in a piglet model of CPB with deep hypothermic circulatory arrest (DHCA). Infant piglets underwent peripheral CPB with 75 min of DHCA and 6 h of critical care after separation from CPB. Mechanically ventilated animals served as controls. Tissue was obtained from the lung, kidney, liver, heart, and ileum. RNA sequencing was performed using NovaSeq 6000 and evaluated via differentially expressed gene (DEG) and pathway/network analyses. CPB/DHCA induced significant transcriptomic alterations, with greater changes seen in liver (2,166 DEGs), heart (775 DEGs), and kidney (1,759 DEGs) compared to lung (401 DEGs) and ileum (11 DEGs), and little overlap across organs (<20 % differentially expressed in >1 organ). Key upregulated systems included ribosomal proliferation and mitochondrial assembly in the liver, oxidative stress response and proximal tubular repair in the kidney, myofilament structural genes and pro-hypertrophy pathways in the heart, and solute channels and arginine metabolism in the lung. Downregulation of adaptive immunity genes occurred in multiple organs. Transcriptomics could inform the investigation of targeted therapies and adverse event screening after cardiac surgery.
2025-04-15 | GSE294547 | GEO
Project description:Cardiopulmonary bypass with deep hypothermic circulatory arrest results in organ-specific transcriptomic responses in pediatric swine
| PRJNA1250478 | ENA
Project description:ObjectivesOur goal was to investigate whether laboratory signatures on admission could be used to identify risk stratification and different tolerance to hypothermic circulatory arrest in acute type A aortic dissection surgery.MethodsPatients from 10 Chinese hospitals participating in the Additive Anti-inflammatory Action for Aortopathy & Arteriopathy (5A) study were randomly divided into derivation and validation cohorts at a ratio of 7:3 to develop and validate a simple risk score model using preoperative variables associated with in-hospital mortality using multivariable logistic regression. The performance of the model was assessed using the area under the receiver operating characteristic curve. Subgroup analyses were performed to investigate whether the laboratory signature-based risk stratification could differentiate the tolerance to hypothermic circulatory arrest.ResultsThere were 1443 patients and 954 patients in the derivation and validation cohorts, respectively. Multivariable analysis showed the associations of older age, larger body mass index, lower platelet-neutrophile ratio, higher lymphocyte-monocyte ratio, higher D-dimer, lower fibrinogen and lower estimated glomerular filtration rate with in-hospital death, incorporated to develop a simple risk model (5A laboratory risk score), with an area under the receiver operating characteristic of 0.736 (95% confidence interval 0.700-0.771) and 0.715 (95% CI 0.681-0.750) in the derivation and validation cohorts, respectively. Patients at low risk were more tolerant to hypothermic circulatory arrest than those at middle to high risk in terms of in-hospital mortality [odds ratio 1.814 (0.222-14.846); odds ratio 1.824 (1.137-2.926) (P = 0.996)].ConclusionsThe 5A laboratory-based risk score model reflecting inflammatory, immune, coagulation and metabolic pathways provided adequate discrimination performances in in-hospital mortality prediction, which contributed to differentiating the tolerance to hypothermic circulatory arrest in acute type A aortic dissection surgery.Clinical Trials. gov number NCT04918108.
| S-EPMC9645440 | biostudies-literature
Project description:The goal of the study was to identify the gene changes that occur in the striatum of neonatal piglets exposed to cardiopulmonary bypass (CPB) with deep hypothermic cardiac arrest (DHCA) then recovered for 6h. To accomplish our goal, mRNA-seq was performed on RNA isolated from neonatal pigs exposed to either DHCA or sham conditions.
2019-01-15 | GSE120863 | GEO
Project description:ObjectiveTotal aortic arch replacement (TAR) necessitates hypothermic circulatory arrest (CA). The frozen elephant trunk technique (FET) additionally requires commercial hybrid grafts. Herein we describe a novel modified FET technique without CA using standard grafts thanks to left axillary artery (LAxA) cannulation in patients with acute type A aortic dissection.MethodsLAxA anastomosis is made first using a homemade debranching graft, and cardiopulmonary bypass is initiated, followed by anastomoses of left common carotid and innominate arteries. The rest of the operation is performed with complete cerebral perfusion. Following replacement of ascending aorta/root, cardiac reperfusion is started using a root cannula which continues throughout the procedure. Distal arch anastomosis is performed clamp-on, allowing lower body perfusion via left subclavian artery. Lower body perfusion is interrupted for 5 to 8 minutes to deploy an endograft to complete a modified FET. Following cannulation of distal arch graft, perfusion of distal aorta is restarted, and all three grafts are incorporated to construct a neo-ascending aorta and arch.ResultsBetween December 2018 and May 2022, 38 patients underwent TAR without operative mortality. Hospital mortality was %15.7, and spinal cord ischemia and stroke were not encountered in surviving patients. The mean lower body CA time was 7.2 ± 2.8 minutes.ConclusionsTAR using standard endografts without CA is possible with LAxA cannulation. To perform a FET, only a short interruption of lower body circulation is sufficient to deploy an endograft, also improving hemostasis of distal anastomosis. Further studies are required with a higher number of patients to evaluate the efficiency of this novel technique.
| S-EPMC10750496 | biostudies-literature
Project description:BackgroundTo compare perioperative and midterm outcomes in thoracic and thoraco-abdominal aortic aneurysm (TAA and TAAA) repair using hypothermic circulatory arrest (HCA) or aortic clamping (AC) with mild hypothermia.MethodsFrom 2012 to 2021 there were 180 open repairs of a TAA or TAAA, of which 90 (50%) were done with HCA and 90 (50%) with aortic clamping with mild hypothermia. The indications for HCA were arch aneurysm, TAA from chronic aortic dissection, and inability to clamp the aorta for proximal anastomosis.ResultsCompared to AC, the HCA group had less prior descending aorta replacement/repair (9.1% vs. 32%, p = 0.0001). Intraoperatively, the HCA group had more TAAs (70% vs. 20%, p < 0.0001) while the AC group had more TAAAs (80% vs. 30%, p < 0.0001). HCA group had longer cardiopulmonary bypass times (242 vs. 181 min, p < 0.0001) but shorter cross-clamp time (39 vs. 120 min, p < 0.0001) and lower temperatures (18°C vs. 34°C, p < 0.0001). Postoperatively, the HCA group had longer intubation times (31 vs. 26 h, p = 0.002), but all other postoperative outcomes including paralysis (2.2% vs. 8.9%, p = 0.08), and operative mortality (4.4% vs. 2.2%, p = 0.68) were similar between HCA and AC groups. Patient age was an independent risk factor for postoperative paralysis (OR 1.07, p = 0.03) while HCA was not significant (OR 0.37, p = 0.21). Five-year survival was similar between HCA and AC groups (85% vs. 80%, p = 0.36).ConclusionsPostoperative outcomes and midterm survival were acceptable in thoracic and thoracoabdominal aneurysm patients after HCA or AC. Both HCA and AC with mild hypothermia were valid approaches in TAA/A repair.
| S-EPMC9812898 | biostudies-literature
Project description:Transcriptional profiling of pig striatum after deep hypothermic cardiac arrest
| PRJNA494773 | ENA
Project description:Background Moderate hypothermic circulatory arrest (MHCA) has been widely used in aortic arch surgery. However, the renal function after MHCA remains controversial. We performed a systematic review and meta-analysis direct comparison of the postoperative renal function of MHCA versus deep hypothermic circulatory arrest (DHCA) in aortic arch surgery. Methods and Results We searched PubMed, Embase, and the Cochrane Library for postoperative renal function after aortic arch surgery with using MHCA and DHCA, published from inception to January 31, 2020. The primary outcome was renal failure. Secondary outcomes were the need for renal therapy and other major postoperative outcomes. The random-effects model was used for all comparisons to pool the estimates. A total of 14 observational studies with 4142 patients were included. Compared with DHCA, MHCA significantly reduced the incidence of renal failure (odds ratio [OR], 0.76; 95% CI, 0.61-0.94; P=0.011; I2=0.0%) and the need of renal replacement (OR, 0.68; 95% CI, 0.48-0.97; P=0.034; I2=0.0%). Subgroup analysis showed that when the hypothermic circulatory arrest time was <30 minutes, the incidence of renal failure in MHCA group was significantly lower than that in DHCA group (OR, 0.73; 95% CI, 0.54-0.99; P=0.040; I2=1.1%), whereas an insignificant difference between 2 groups when hypothermic circulatory arrest time was >30 minutes (OR, 0.76; 95% CI, 0.51-1.13; P=0.169; I2=17.3%). Conclusions MHCA compared with DHCA reduces the incidence of renal failure and the need for renal replacement. Registration URL: https://www.crd.york.ac.uk/prospero; Unique identifier: CRD42020169348.
| S-EPMC7792363 | biostudies-literature