1
|
Liu Q, Pei Y, Xie Q, Bao W, Li X, Luan J, Han J. Renal Artery Coil Embolization as an Endovascular Approach for Establishing a Rabbit Model of Chronic Kidney Disease. J Vasc Interv Radiol 2024:S1051-0443(24)00289-6. [PMID: 38663515 DOI: 10.1016/j.jvir.2024.04.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 04/09/2024] [Accepted: 04/12/2024] [Indexed: 05/23/2024] Open
Abstract
PURPOSE To investigate the safety and feasibility of renal artery coil embolization for establishing chronic kidney disease (CKD) in rabbits. MATERIALS AND METHODS Ten male adult New Zealand rabbits underwent renal artery coil embolization. Initially, the main renal artery on 1 side was completely embolized, followed by embolization of approximately two-thirds of the primary branches of the contralateral renal artery 1 week later. Four rabbits were randomly chosen for sacrifice at 4 weeks after embolization, whereas the remaining 6 were sacrificed at 8 weeks after embolization. The assessment encompassed the animals' general condition, angiography, biochemical parameters, inflammatory markers, and histopathological examination of the kidneys and hearts. RESULTS Four weeks after embolization, serum creatinine level showed a substantial increase (2.4 mg/dL [SD ± 0.6]; P = .009 vs baseline), with a subsequent 4.12-fold elevation at 8 weeks after embolization (4.9 mg/dL [SD ± 1.4]; P < .001 vs baseline). Additionally, considerable increases in serum blood urea nitrogen, calcium, and potassium ions were observed at 8 weeks after embolization (58.3 mg/dL [SD ± 19.0]; P < .001 vs baseline; 23.1 mg/dL [SD ± 4.4]; P < .001 vs baseline; and 6.3 mEq/L [SD ± 0.7]; P < .001 vs baseline, respectively). The completely embolized kidney exhibited notable atrophy, severe fibrosis, and cortical calcification, whereas the contralateral partially embolized kidney displayed compensatory hypertrophy, along with glomerulosclerosis, tubular dilation, tubular casts, and interstitial fibrosis. CONCLUSIONS Renal artery coil embolization proved to be effective and safe for establishing a CKD model in rabbits.
Collapse
Affiliation(s)
- Qijia Liu
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Yun Pei
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Qian Xie
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Wenhan Bao
- Department of Nephrology, Peking University Third Hospital, Beijing, China
| | - Xuan Li
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Jingyuan Luan
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Jintao Han
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China.
| |
Collapse
|
2
|
Kyo S, Murata K, Kawatou M, Minatoya K, Sunagawa GA, Masumoto H. Quiescence-inducing neurons-induced hypometabolism ameliorates acute kidney injury in a mouse model mimicking cardiovascular surgery requiring circulatory arrest. JTCVS OPEN 2022; 12:201-210. [PMID: 36590714 PMCID: PMC9801336 DOI: 10.1016/j.xjon.2022.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 10/27/2022] [Accepted: 10/31/2022] [Indexed: 11/10/2022]
Abstract
Objectives Acute kidney injury is a serious complication after cardiovascular surgery requiring circulatory arrest. It is reported that mice can be induced into a hibernation-like hypometabolic state by stimulating a specific neuron located at the hypothalamus (quiescence-inducing neurons-induced hypometabolism [QIH]). Here, we investigated the efficacy of QIH for the amelioration of acute kidney injury in an experimental circulatory arrest using a transgenic mouse model. Methods We genetically prepared mice in which QIH can be conditionally induced (QIH-ready mice). Mice were divided into 4 groups (n = 6 for each): QIH-ready normothermia (QN), QIH-ready hypothermia (QH), control normothermia (CN), and control hypothermia (CH). After induction of QIH, left thoracotomy and descending aorta crossclamping were conducted. After reperfusion, we collected kidneys and evaluated histologic changes and serum biochemical markers, specifically neutrophil gelatinase-associated lipocalin and cystatin C, indicating early kidney injury. Results Normothermia showed higher tubular injury scores than those in hypothermia (QN vs QH [P = .0021] and CN vs CH [P < .001]). QN exhibited lower neutrophil gelatinase-associated lipocalin and cystatin C levels than those in CN (neutrophil gelatinase-associated lipocalin: CN vs QN: 1.51 ± 0.71 vs 0.82 ± 0.32; P = .0414 and cystatin C: 1.48 ± 0.39 vs 0.71 ± 0.26; P = .0015). There was no significant difference between QN and QH. Conclusions QIH partly ameliorated acute kidney injury in a mouse ischemia model even in normothermia. QIH might be a promising approach to achieving sufficient kidney protection without hypothermic circulatory arrest in the future.
Collapse
Key Words
- AAV8, adeno-associated virus 8
- AKI, acute kidney injury
- CH, control hypothermia
- CN, control normothermia
- CNO, clozapine-N-oxide
- DHCA, deep hypothermic circulatory arrest
- NGAL, neutrophil gelatinase-associated lipocalin
- Q neurons, quiescence-inducing neurons
- Q neurons-induced hypometabolism
- QH, quiescence-inducing neurons-induced hypometabolism-ready hypothermia
- QIH, quiescence-inducing neurons-induced hypometabolism
- QN, quiescence-inducing neurons-induced hypometabolism-ready normothermia
- QRFP, pyroglutamylated RFamide peptide
- TA, ambient temperature
- TB, body temperature
- Vo2, the rate of oxygen consumption
- acute kidney injury
- circulatory arrest
- hibernation
- iCre, codon-improved Cre recombinase
Collapse
Affiliation(s)
- Shoichi Kyo
- Department of Cardiovascular Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kozue Murata
- Department of Cardiovascular Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Clinical Translational Research Program, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto, Japan
| | - Masahide Kawatou
- Department of Cardiovascular Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Kenji Minatoya
- Department of Cardiovascular Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Genshiro A. Sunagawa
- Laboratory for Molecular Biology of Aging, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
- Laboratory for Hibernation Biology, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Hidetoshi Masumoto
- Department of Cardiovascular Surgery, Graduate School of Medicine, Kyoto University, Kyoto, Japan
- Clinical Translational Research Program, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| |
Collapse
|
3
|
[Risk factors for early acute kidney injury after cardiac arrest in children in the pediatric intensive care unit and a prognostic analysis]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2022; 24:1259-1265. [PMID: 36398553 PMCID: PMC9678060 DOI: 10.7499/j.issn.1008-8830.2205088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
OBJECTIVES To investigate the risk factors for acute kidney injury (AKI) in children with cardiac arrest (CA) and the influencing factors for prognosis. METHODS A retrospective analysis was performed on the medical records of the children who developed CA in the pediatric intensive care unit (PICU) of Hunan Children's Hospital from June 2016 to June 2021. According to the presence or absence of AKI within 48 hours after return of spontaneous circulation (ROSC) for CA, the children were divided into two groups: AKI (n=50) and non-AKI (n=113). According to their prognosis on day 7 after ROSC, the AKI group was further divided into a survival group (n=21) and a death group (n=29). The multivariate logistic regression analysis was used to investigate the risk factors for early AKI in the children with CA and the influencing factors for prognosis. RESULTS The incidence rate of AKI after CA was 30.7% (50/163). The AKI group had a 7-day mortality rate of 58.0% (29/50) and a 28-day mortality rate of 78.0% (39/50), and the non-AKI group had a 7-day mortality rate of 31.9% (36/113) and a 28-day mortality rate of 58.4% (66/113). The multivariate logistic regression analysis showed that long duration of cardiopulmonary resuscitation (OR=1.164, 95%CI: 1.088-1.246, P<0.001), low baseline albumin (OR=0.879, 95%CI: 0.806-0.958, P=0.003), and adrenaline administration before CA (OR=2.791, 95%CI: 1.119-6.961, P=0.028) were closely associated with the development of AKI after CA, and that low baseline pediatric critical illness score (OR=0.761, 95%CI: 0.612-0.945, P=0.014), adrenaline administration before CA (OR=7.018, 95%CI: 1.196-41.188, P=0.031), and mechanical ventilation before CA (OR=7.875, 95%CI: 1.358-45.672, P=0.021) were closely associated with the death of the children with AKI after CA. CONCLUSIONS Albumin should be closely monitored for children with ROSC after CA, especially for those with long duration of cardiopulmonary resuscitation, low baseline pediatric critical illness score, adrenaline administration before CA, and mechanical ventilation before CA, and such children should be identified and intervened as early as possible to reduce the incidence of AKI and the mortality rate.
Collapse
|
4
|
Experimental models of acute kidney injury for translational research. Nat Rev Nephrol 2022; 18:277-293. [PMID: 35173348 DOI: 10.1038/s41581-022-00539-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2022] [Indexed: 12/20/2022]
Abstract
Preclinical models of human disease provide powerful tools for therapeutic discovery but have limitations. This problem is especially apparent in the field of acute kidney injury (AKI), in which clinical trial failures have been attributed to inaccurate modelling performed largely in rodents. Multidisciplinary efforts such as the Kidney Precision Medicine Project are now starting to identify molecular subtypes of human AKI. In addition, over the past decade, there have been developments in human pluripotent stem cell-derived kidney organoids as well as zebrafish, rodent and large animal models of AKI. These organoid and AKI models are being deployed at different stages of preclinical therapeutic development. However, the traditionally siloed, preclinical investigator-driven approaches that have been used to evaluate AKI therapeutics to date rarely account for the limitations of the model systems used and have given rise to false expectations of clinical efficacy in patients with different AKI pathophysiologies. To address this problem, there is a need to develop more flexible and integrated approaches, involving teams of investigators with expertise in a range of different model systems, working closely with clinical investigators, to develop robust preclinical evidence to support more focused interventions in patients with AKI.
Collapse
|
5
|
Application of a Modified Extracorporeal Circulation Perfusion Method During Surgery for Acute Stanford Type A Aortic Dissection. Heart Lung Circ 2020; 29:1203-1209. [PMID: 32059950 DOI: 10.1016/j.hlc.2019.11.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/10/2019] [Accepted: 11/23/2019] [Indexed: 11/20/2022]
Abstract
AIM The aim of this study was to investigate the effect of the modified extracorporeal circulation perfusion method during surgery for acute Stanford type A aortic dissection in patients who underwent stented elephant trunk implantation and arch replacement. METHOD A total of 69 patients with acute Stanford type A aortic dissection who underwent stented elephant trunk implantation and arch replacement were retrospectively analysed from 2017 to 2018. According to the perfusion method of extracorporeal circulation, patients were divided into a routine perfusion (RP) group and a modified perfusion (MP) group. Clinical data were collected, including the time of extracorporeal circulation and deep hypothermic circulatory arrest, incidence of acute kidney injury and neurological complications, and comparisons between the two groups were conducted by using independent sample t-tests for normally distributed qualitative data, the Mann-Whitney U-test for skewed qualitative data, and the chi square test or Fisher's exact test for categorical data. RESULTS There were 55 (80%) males and 14 (20%) females in the entire cohort, and the mean ± standard deviation age was 50.4±9.0 years. A total of 53 (77%) patients were included in the RP group, and 16 (23%) were included in the MP group. Patients in the MP group were older (55.5±7.8 vs 48.8±8.9 years), and the difference was significant (p=0.008). Compared with the RP group, the time of extracorporeal circulation (218.0 [44.7] vs 246.0 [58.0] min; p=0.005) and deep hypothermic circulatory arrest (4.0 [2.0] vs 25.0 [10.0] min; p<0.001) was shorter, and the incidence of postoperative acute kidney injury (n=6 [37.5%] vs n=36 [67.9%]; p=0.029) was lower in the MP group; the differences were significant. Six (6) patients died in the RP group; no patients died in the MP group. The total in-hospital mortality rate was 8.7%. CONCLUSIONS The modified extracorporeal circulation perfusion method is feasible, with satisfactory results.
Collapse
|
6
|
Hu GH, Duan L, Jiang M, Zhang CL, Duan YY. Wider intraoperative glycemic fluctuation increases risk of acute kidney injury after pediatric cardiac surgery. Ren Fail 2018; 40:611-617. [PMID: 30396300 PMCID: PMC6225368 DOI: 10.1080/0886022x.2018.1532908] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE The association between poor intraoperative glycemic control and postoperative acute kidney injury (AKI) in adult cardiac surgery has been observed, but data in the pediatrics remain unknown. We performed a hypothesis that intraoperative hyperglycemia and/or wider glycemic fluctuation were associated with the incidence of postoperative AKI in pediatric cardiac surgery. METHODS A retrospective study was performed in pediatrics who underwent cardiac surgery from 2013 to 2016. Perioperative glycemic data up to 48 hours after surgery were collected and analyzed. Patients with AKI were matched 1:1 with patients without AKI by a propensity score. Variables of demographic data, preoperative renal function and glycemic level, perioperative cardiac condition were matched. RESULTS The incidence of AKI was 11.5% (118/1026), with 53.4% (63/118), 30.5% (36/118), and 16.1% (19/118) categorized as AKIN stages I, II, and III, respectively. Children who experienced AKI were younger and cyanotic, underwent more complex surgeries, had higher peak intraoperative glucose levels, wider intraoperative glycemic fluctuation, greater inotropic scores and more transfusions, and poor outcomes (all p < .05). After matching, the AKI group had significantly wider intraoperative glycemic fluctuation (p < .05). Logistic regression showed intraoperative glycemic fluctuation was one of the risk factors for AKI (p = .033) and degree of AKI severity stage increased when the glycemic fluctuation increased (p < .01). CONCLUSIONS Wider intraoperative glycemic fluctuation, but not hyperglycemia, was associated with an increased incidence of postoperative AKI after pediatric cardiac surgery.
Collapse
Affiliation(s)
- Guo-Huang Hu
- a Department of Surgery , The Fourth hospital of Changsha, Hunan Normal University , Changsha , China
| | - Lian Duan
- b Department of Cardiovascular Surgery , Xiangya Hospital, Central South University , Changsha , China
| | - Meng Jiang
- b Department of Cardiovascular Surgery , Xiangya Hospital, Central South University , Changsha , China
| | - Cheng-Liang Zhang
- b Department of Cardiovascular Surgery , Xiangya Hospital, Central South University , Changsha , China
| | - Yan-Ying Duan
- c Department of Occupational and Environmental Health , Public Health School, Central South University , Changsha , China
| |
Collapse
|
7
|
Yu L, Gu T, Liu Y, Jiang X, Shi E. Cold-inducible ribonucleic acid-binding protein attenuates acute kidney injuries after deep hypothermic circulatory arrest in rats. Interact Cardiovasc Thorac Surg 2018; 26:124-130. [PMID: 29049808 DOI: 10.1093/icvts/ivx262] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 07/07/2017] [Indexed: 12/23/2022] Open
Abstract
OBJECTIVES Cold-inducible ribonucleic acid-binding protein (CIRP) has been identified to play a role in the antiapoptotic effect of hypothermia. We sought to investigate the renoprotection of CIRP in a rat model of deep hypothermic circulatory arrest. METHODS Overexpression and knockdown of CIRP were achieved in vivo by directly injecting lentivirus vectors containing packaging lentivirus (pL)/internal ribosome entry site (IRES)/green fluorescent protein (GFP)-CIRP or pL/short hairpin RNA (shRNA)/F-cold inducible RNA binding protein (F-CIRP)-A into the renal parenchyma of rats 7 days before deep hypothermic circulatory arrest under the ultrasound guidance. The vehicles or control lentivirus vectors were given to the control group or the control vector group, respectively. Renal function and apoptosis activity were evaluated by serum cystatin C, serum/tissue neutrophil gelatinase-associated lipocalin and terminal deoxynucleotidyl transferase 2'-deoxyuridine, 5'-triphosphate nick-end labelling assay at 24 h after surgery. The expression of CIRP messenger RNA (mRNA) was assessed by quantitative real-time polymerase chain reaction. Protein expression of CIRP and caspase 3 was tested by Western blot. RESULTS Compared with the sham group, rats in the control group showed increased expression of CIRP mRNA, CIRP protein, caspase 3 and the apoptotic rate (P < 0.01). However, when compared with the control group, rats in the pL/IRES/GFP-CIRP group showed significantly decreased caspase 3 and apoptosis activities while further increased expression of CIRP mRNA and protein. Rats in the pL/shRNA/F-CIRP-A group showed increased caspase 3 and apoptosis activities and further decreased expression of CIRP mRNA and protein (P < 0.01), when compared with the control group. Renal function was markedly protected in the pL/IRES/GFP-CIRP group and impaired in the pL/shRNA/F-CIRP-A group. CONCLUSIONS Our findings suggest that the CIRP exerts a robust renoprotective effect by inhibiting apoptosis in the rat model of deep hypothermic circulatory arrest.
Collapse
Affiliation(s)
- Lei Yu
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Tianxiang Gu
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yu Liu
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xuan Jiang
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Enyi Shi
- Department of Cardiac Surgery, The First Affiliated Hospital of China Medical University, Shenyang, China
| |
Collapse
|
8
|
Natanov R, Gueler F, Falk CS, Kühn C, Maus U, Boyle EC, Siemeni T, Knoefel AK, Cebotari S, Haverich A, Madrahimov N. Blood cytokine expression correlates with early multi-organ damage in a mouse model of moderate hypothermia with circulatory arrest using cardiopulmonary bypass. PLoS One 2018; 13:e0205437. [PMID: 30308065 PMCID: PMC6181365 DOI: 10.1371/journal.pone.0205437] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 09/25/2018] [Indexed: 12/12/2022] Open
Abstract
Cardiopulmonary bypass (CPB) with moderate hypothermic cardiac arrest (MHCA) is essential for prolonged complex procedures in cardiac surgery and is associated with postoperative complications. Although cytokine release provoked through MHCA under CPB plays a pivotal role in postoperative organ damage, the pathomechanisms are unclear. Here, we investigated the cytokine release pattern and histological organ damage after MHCA using a recently described mouse CPB model. Eight BALB/c mice underwent 60 minutes of circulatory arrest under CPB, were successively rewarmed and reperfused. Blood cytokine concentrations and liver and kidney function parameters were measured and histological changes to these organs were compared to control animals. Our results showed a marked increase in proinflammatory cytokines and histological changes in the kidney, lung, and liver after CPB. Furthermore, clinical chemistry showed signs of hemolysis and acute kidney injury. These results suggest early onset of solid organ injury which correlates with increased leukocyte infiltration. A better understanding of the interplay between pro-inflammatory cytokine activation and solid organ injury in this model of CBP with MHCA will inform strategies to reduce organ damage during cardiac surgeries in the clinic.
Collapse
Affiliation(s)
- Ruslan Natanov
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Faikah Gueler
- Department of Nephrology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Christine S. Falk
- Institute of Transplant Immunology, Integrated Research and Treatment Center Transplantation (IFB-Tx), Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Christian Kühn
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Ulrich Maus
- Department of Pneumology, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Erin C. Boyle
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Thierry Siemeni
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Ann-Katrin Knoefel
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Serghei Cebotari
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Axel Haverich
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Lower Saxony, Germany
| | - Nodir Madrahimov
- Department of Cardiothoracic, Transplantation and Vascular Surgery, Hannover Medical School, Hannover, Lower Saxony, Germany
- * E-mail:
| |
Collapse
|
9
|
鲍 权, 洪 小, 唐 靖, 王 刚, 陈 曦, 秦 再. [Establishment of a modified rabbit model of acute lung injury induced by cardiopulmonary bypass]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2017; 37:797-801. [PMID: 28669955 PMCID: PMC6744139 DOI: 10.3969/j.issn.1673-4254.2017.06.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To establish an modified rabbit model of the acute lung injury induced by cardiopulmonary bypass (CPB) with ascending aorta and right atrium catheterization and detect the changes in serum tumor necrosis factor-α (TNF-α) level after modeling. METHODS Ten healthy adult male New Zealand rabbits were randomly selected to establish CPB models. The model establishment was deemed successful if the rabbits survived for over 4 h with stable heart beat after termination of CPB. The vital signs of the rabbits were recorded after anesthesia (T1), before CPB (T2), at 15 after blocking the ascending aorta and pulmonary artery (T3), immediately after re-opening of the ascending aorta and pulmonary artery (T4), and at 1 (T5) and 4 (T6) after CPB. Arterial blood gas (ABG) was monitored at T2, T4 and T6 and the serum levels of TNF-α were also detected with ELISA. RESULTS Nine rabbit models of CPB with acute lung injury were successfully established. During the operation, the MAP was maintained at a level above 55 mmHg, HCT significantly decreased from (30.18∓2.88)% at T2 to (17.73∓1.95)% at T4 (P<0.05), and plasma lactate level increased significantly from 3.65∓1.13 mmol/L at T2 to 9.36∓1.28 mmol/L at T4 (P<0.05). The oxygenation index (PaO2/FiO2) at T6 was significantly lower than that at T2 (281.64∓55.76 vs 468.36∓56.28 mmHg, P<0.05). The serum levels of TNF-α were significantly increased (P<0.05) and obvious lung interstitial edema and inflammatory cell infiltration occurred after CPB establishment. CONCLUSION The modified rabbit model of CPB with acute lung injury is stable and reliable and can be used for studying acute lung injury induced by CPB.
Collapse
Affiliation(s)
- 权 鲍
- 南方医科大学南方医院麻醉科,广东 广州 510515Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 小杨 洪
- 陆军总医院附属八一儿童医院儿童SPICU,北京 100700Affiliated Bayi Children's Hospital of General Hospital of Beijing Military Region, Beijing 100700, China
| | - 靖 唐
- 南方医科大学南方医院麻醉科,广东 广州 510515Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - 刚 王
- 陆军总医院附属八一儿童医院儿童SPICU,北京 100700Affiliated Bayi Children's Hospital of General Hospital of Beijing Military Region, Beijing 100700, China
| | - 曦 陈
- 陆军总医院附属八一儿童医院儿童SPICU,北京 100700Affiliated Bayi Children's Hospital of General Hospital of Beijing Military Region, Beijing 100700, China
| | - 再生 秦
- 南方医科大学南方医院麻醉科,广东 广州 510515Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| |
Collapse
|
10
|
Yu L, Gu T, Shi E, Wang Y, Fang Q, Wang C. Dysregulation of renal microRNA expression after deep hypothermic circulatory arrest in rats. Eur J Cardiothorac Surg 2016; 49:1725-31. [PMID: 26802145 DOI: 10.1093/ejcts/ezv460] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 11/25/2015] [Indexed: 01/27/2023] Open
Abstract
OBJECTIVES Acute kidney injury (AKI) is a severe complication of cardiopulmonary bypass-deep hypothermic circulatory arrest (DHCA) surgery. Non-coding microRNAs (miRNAs) are considered as key players in kidney physiology and pathology. However, whether they are implicated in DHCA-induced AKI at the early stage post-surgery is less studied, and requires for further investigation. METHODS In this study, kidney tissues were removed at 2 h post-surgery from Sprague-Dawley rats that underwent a 60-min DHCA (18°C), with samples from sham-operated rats as control. Renal RNA isolates were analysed with Affymetrix miRNA microarray 4.0 containing 728 mature rat miRNA probes. RESULTS Seventy-one miRNAs were down-regulated and 4 were up-regulated in the kidneys of DHCA rats [log2 (fold change, FC) > 1, P < 0.05]. Novel differentially expressed miRNAs, such as miRNA-3068, miR-1949 and miR-3473, were identified in the injured kidney tissues. Putative target genes of the down-regulated miR-30b-5p, miR-199a-5p, miR-148b-3p and miR-10a-3p were subjected to analyses of gene ontology (GO) categories and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways. The results indicated that these miRNAs targeted a large set of genes involved in essential biological processes related to AKI pathogenesis, such as apoptotic process and response to hypoxia, as well as genes implicated in critical signalling pathways, such as chemokine, lysosome and FoxO signalling pathways (false discovery rate-corrected, P < 0.05). CONCLUSIONS The identified 75 differentially expressed miRNAs hold the potential to serve as novel early markers and novel therapeutic targets for DHCA-AKI.
Collapse
Affiliation(s)
- Lei Yu
- Department of cardiac surgery, the first affiliated hospital of China Medical University, Shenyang, China
| | - Tianxiang Gu
- Department of cardiac surgery, the first affiliated hospital of China Medical University, Shenyang, China
| | - Enyi Shi
- Department of cardiac surgery, the first affiliated hospital of China Medical University, Shenyang, China
| | - Yongchao Wang
- Department of cardiac surgery, the first affiliated hospital of China Medical University, Shenyang, China
| | - Qin Fang
- Department of cardiac surgery, the first affiliated hospital of China Medical University, Shenyang, China
| | - Chun Wang
- Department of cardiac surgery, the first affiliated hospital of China Medical University, Shenyang, China
| |
Collapse
|