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The clinical impact of tricuspid regurgitation in patients with a biatrial orthotopic heart transplant

《医学前沿（英文）》 2023年 第17卷 第3期   页码 527-533 doi: 10.1007/s11684-022-0967-5

摘要： In this study, we aim to elucidate the clinical impact and long-term course of tricuspid regurgitation (TR), taking into account its dynamic nature, after biatrial orthotopic heart transplant (OHT). All consecutive adult patients undergoing biatrial OHT (1984−2017) with an available follow-up echocardiogram were included. Mixed-models were used to model the evolution of TR. The mixed-model was inserted into a Cox model in order to address the association of the dynamic TR with mortality. In total, 572 patients were included (median age: 50 years, males: 74.9%). Approximately 32% of patients had moderate-to-severe TR immediately after surgery. However, this declined to 11% on 5 years and 9% on 10 years after surgery, adjusted for survival bias. Pre-implant mechanical support was associated with less TR during follow-up, whereas concurrent LV dysfunction was significantly associated with more TR during follow-up. Survival at 1, 5, 10, 20 years was 97% ± 1%, 88% ± 1%, 66% ± 2% and 23% ± 2%, respectively. The presence of moderate-to-severe TR during follow-up was associated with higher mortality (HR: 1.07, 95% CI (1.02–1.12), p = 0.006). The course of TR was positively correlated with the course of creatinine (R = 0.45). TR during follow-up is significantly associated with higher mortality and worse renal function. Nevertheless, probability of TR is the highest immediately after OHT and decreases thereafter. Therefore, it may be reasonable to refrain from surgical intervention for TR during earlier phase after OHT.

关键词： orthotopic heart transplant     tricuspid regurgitation     clinical impact     biatrial heart transplantation    

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Methodologies for the establishment of an orthotopic transplantation model of ovarian cancer in mice

null

《医学前沿（英文）》 2014年 第8卷 第1期   页码 101-105 doi: 10.1007/s11684-014-0315-5

摘要：

This study used different methods to establish an animal model of orthotopic transplantation for ovarian cancer to provide an accurate simulation of the mechanism by which tumor occurs and develops in the human body. We implanted 4T1 breast cancer cells stably-transfected with luciferase into BALB/c mice by using three types of orthotopic transplantation methodologies: (1) cultured cells were directly injected into the mouse ovary; (2) cell suspension was initially implanted under the skin of the mouse neck; after tumor mass formed, the tumor was removed and ground into cell suspension, which was then injected into the mouse ovary; and (3) a subcutaneous tumor mass was first generated, removed, and cut into small pieces, which were directly implanted into the mouse ovary. After these models were established, in vivo luminescence imaging was performed. Results and data were compared among groups. Orthotopic transplantation model established with subcutaneous tumor piece implantation showed a better simulation of tumor development and invasion in mice. This model also displayed negligible response to artificial factors. This study successfully established an orthotopic transplantation model of ovarian cancer with high rates of tumor formation and metastasis by using subcutaneous tumor pieces. This study also provided a methodological basis for future establishment of an animal model of ovarian cancer in humans.

关键词： ovarian cancer     orthotopic transplantation     animal model    

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Intra-abdominal hypertension is an independent cause of acute renal failure after orthotopic liver transplantation

SHU Ming, PENG Chenghong, CHEN Hao, SHEN Boyong, ZHOU Guangwen, SHEN Chuan, LI Hongwei

《医学前沿（英文）》 2007年 第1卷 第2期   页码 167-172 doi: 10.1007/s11684-007-0031-5

摘要： An independent association between acute renal failure (ARF) and intra-abdominal hypertension (IAH) after liver transplantation has not been established previously. The aim of this retrospective study was to understand the role of IAH as an independent risk factor for ARF in the early postoperative period. This study involved 62 subjects who underwent liver transplantation. Intra-abdominal pressure (IAP) was measured in the first three days after surgery by using the urinary bladder technique. An IAP of at least 20 mmHg per day was defined as IAH. Clinical parameters between group IAH and group NO-IAH were compared in terms of the incidence of ARF, blood creatinine levels, blood urea nitrogen (BUN) levels, urine volume per hour and glomerular filtration gradient (GFG). Hemodynamic variations were recorded in the first three postoperative days between group ARF and group NO-ARF. The perioperative suspected risk factors of ARF were determined for statistical evaluation using correlation coefficients and logistic regression analysis. In group IAH, 45.8% patients developed ARF as against 7.9% in group NO-IAH; GFG was significantly lower at 0 72 h after surgery; and blood creatinine levels, BUN levels, urine volume per hour were significantly different at 24 72 h after surgery compared with group NO-IAH. The patients with ARF were not significantly different from those without ARF in terms of central venous pressure, pulmonary artery pressure and mean arterial pressure (MAP) in the first three postoperative days despite a significant increase in heart rate at 24 72h after operation. Postoperative IAH, intraoperative MAP and intraoperative blood transfusion volume of more than 15 U were found to be independent risk factors for ARF. IAH impaired renal function and was an independent risk factor for ARF after liver transplantation. Routine measurement should be taken to monitor IAP every eight hours postoperatively.
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FMO3--TMAO axis modulates the clinical outcome in chronic heart-failure patients with reduced ejection

《医学前沿（英文）》 2022年 第16卷 第2期   页码 295-305 doi: 10.1007/s11684-021-0857-2

摘要： The association among plasma trimethylamine-N-oxide (TMAO), FMO3 polymorphisms, and chronic heart failure (CHF) remains to be elucidated. TMAO is a microbiota-dependent metabolite from dietary choline and carnitine. A prospective study was performed including 955 consecutively diagnosed CHF patients with reduced ejection fraction, with the longest follow-up of 7 years. The concentrations of plasma TMAO and its precursors, namely, choline and carnitine, were determined by liquid chromatography-mass spectrometry, and the FMO3 E158K polymorphisms (rs2266782) were genotyped. The top tertile of plasma TMAO was associated with a significant increment in hazard ratio (HR) for the composite outcome of cardiovascular death or heart transplantation (HR=1.47, 95% CI=1.13–1.91, P=0.004) compared with the lowest tertile. After adjustments of the potential confounders, higher TMAO could still be used to predict the risk of the primary endpoint (adjusted HR=1.33, 95% CI=1.01–1.74, P=0.039). This result was also obtained after further adjustment for carnitine (adjusted HR=1.33, 95% CI=1.01–1.74, P=0.039). The FMO3 rs2266782 polymorphism was associated with the plasma TMAO concentrations in our cohort, and lower TMAO levels were found in the AA-genotype. Thus, higher plasma TMAO levels indicated increased risk of the composite outcome of cardiovascular death or heart transplantation independent of potential confounders, and the FMO3 AA-genotype in rs2266782 was related to lower plasma TMAO levels.

关键词： chronic heart failure     trimethylamine-N-oxide     flavin monooxygenase 3     single nucleotide polymorphism    

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A literature review of perishable medical resource management

《工程管理前沿（英文）》   页码 710-726 doi: 10.1007/s42524-023-0278-9

摘要： In recent decades, healthcare providers have faced mounting pressure to effectively manage highly perishable and limited medical resources. This article offers a comprehensive review of supply chain management pertaining to such resources, which include transplantable organs and healthcare products. The review encompasses 93 publications from 1990 to 2022, illustrating a discernible upward trajectory in annual publications. The surveyed literature is categorized into three levels: Strategic, tactical, and operational. Key problem attributes and methodologies are analyzed through the assessment of pertinent publications for each problem level. Furthermore, research on service innovation, decision analytics, and supply chain resilience elucidates potential areas for future research.

关键词： perishable medical resources     organ transplant     healthcare products     decision analytics     operations management    

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The role of natriuretic peptide precursor A gene polymorphism in the development of coronary heart disease

Ripen NSENGA MD, Longxian CHENG PhD, Mei’an HE PhD, Tangchun WU PhD,

《医学前沿（英文）》 2009年 第3卷 第4期   页码 437-442 doi: 10.1007/s11684-009-0074-x

摘要： Natriuretic peptide precursor A (NPPA) is synthesized, stored, and released by atrial myocytes. Previous studies have shown that NPPA plays a significant role in the regulation of coronary circulation and in atherosclerosis. Rs5065 NPPA gene polymorphism leads to the translation of NPPA with two additional arginines and has been suggested to be associated with salt-sensitive hypertension. The purpose of the present study was to investigate the relationship between the rs5065 NPPA gene polymorphism and the risk of coronary heart disease (CHD) in Chinese Han population. We genotyped the single nucleotide polymorphism (SNP) rs5065 NPPA in the human NPPA gene in 1861 sex- and age-matched subjects, comprising of 904 CHD cases and 957 controls of Chinese Han population. Genotyping of SNP was performed with Taqman SNP allelic discrimination assays by means of an ABI 7900HT. Our study showed that the frequencies of rs5065 NPPA C allele in the case and the control groups were 0.012 and 0.005, respectively. There was significant difference in C allele frequency distribution between the two groups (OR=2.607, 95% CI: 1.197−5.678, =0.012). In the case group, there was significant difference between smokers and nonsmokers with subjects carrying C allele (=0.037), and no significant difference in gender, age, fasting total cholesterol (TC), triglycerides (TG), fasting plasma glucose (FPG), body mass index (BMI), and blood pressure (BP) between the cases and the controls (>0.05). Our results suggest that the C allele of rs5065 NPPA gene polymorphism may be associated with the risk of CHD.

关键词： natriuretic peptide precursor A     coronary heart disease     gene polymorphism     allelic discrimination     polymorphism     single nucleotide    

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Applications of traditional pump design theory to artificial heart and CFD simulation

WANG Yingpeng, SONG Xinwei, YING Chuntong

《能源前沿（英文）》 2008年 第2卷 第4期   页码 504-507 doi: 10.1007/s11708-008-0059-5

摘要： A novel heart pump model was obtained by improving the traditional axial pump design theory with the consideration of working and hydraulic situations for artificial hearts. The pump head range and the velocity triangle were introduced and an iterative approach was utilized for the initial model. Moreover, computational fluid dynamics (CFD) simulations were performed to determine relevant model parameters. The results show that this procedure can be used for designing a series of high-efficiency artificial heart pumps.

关键词： computational     high-efficiency artificial     iterative approach     artificial     traditional    

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Adiponectin: mechanisms and new therapeutic approaches for restoring diabetic heart sensitivity to ischemic

null

《医学前沿（英文）》 2013年 第7卷 第3期   页码 301-305 doi: 10.1007/s11684-013-0283-1

摘要：

Systemic inflammatory response following myocardial ischemia-reperfusion injury (IRI) to a specific organ may cause injuries. Ischemic post-conditioning (IPostC) has emerged as a promising method for myocardial protection against IRI both in experimental and in clinical settings. Enhancement of endogenous nitric oxide (NO) is one of the major mechanisms by which IPostC confers cardioprotection. However, the sensitivity of the diabetic heart to IPostC is impaired and the underlying mechanism is unknown. Adiponectin (APN) is an adipocyte-derived plasma protein with anti-diabetic and anti-inflammatory properties. Plasma levels of APN are decreased in obese subjects and in patients with type 2 diabetes. APN supplementation has been shown to increase NO production and attenuate myocardial IRI in normal (non-diabetic) animals. However, the effect of APN on myocardial injury in diabetic subjects, especially its potential in restoring the sensitivity of the diabetic heart to IPostC has not been investigated. In the current paper, we discussed the possible reasons why the myocardium of diabetic subjects loses sensitivity to IPostC and also highlighted the potential effectiveness and mechanism of APN in restoring IPostC cardioprotection in diabetes. This review proposes to conduct studies that may facilitate the development of novel and optimal therapies to enhance cardioprotection in patients with severe diseases such as diabetes.

关键词： adiponectin     ischemic post-conditioning     ischemia reperfusion injury     diabetes    

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Prognostic value of fasting glucose on the risk of heart failure and left ventricular systolic dysfunction

Hui Wang, Yang Zhang, Zhujun Shen, Ligang Fang, Zhenyu Liu, Shuyang Zhang

《医学前沿（英文）》 2021年 第15卷 第1期   页码 70-78 doi: 10.1007/s11684-020-0749-x

摘要： Recent studies have shown that acute blood glucose elevation in patients with ST-segment elevation myocardial infarction (STEMI) suggests a poor prognosis. To investigate the effect of fasting blood glucose (FBG) on the risk of heart failure (HF) and left ventricular systolic dysfunction (LVSD) in non-diabetic patients undergoing primary percutaneous coronary intervention (PCI) for acute STEMI, we retrospectively recruited consecutive non-diabetic patients who underwent primary PCI for STEMI in our hospital from February 2003 to March 2015. The patients were divided into two groups according to the FBG level. A total of 623 patients were recruited with an age of 61.3±12.9 years, of whom 514 (82.5%) were male. The HF risk (odds ratio 3.401, 95% confidence interval (CI) 2.144–5.395, <0.001) was significantly increased in patients with elevated FBG than those with normal FBG. Elevated FBG was also independently related to LVSD (β 1.513, 95%CI 1.282–1.785, <0.001) in a multiple logistics regression analysis. In conclusion, elevated FBG was independently associated with 30-day HF and LVSD risk in non-diabetic patients undergoing primary PCI for STEMI.

关键词： myocardial infarction     percutaneous coronary intervention     diabetes mellitus     fasting glucose     heart failure    

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Setting up a heart rate alarm limit to decrease oculocardiac reflex during strabismus surgery in children

ZHANG Kangkang, GU Enhua, LU Junjie

《医学前沿（英文）》 2008年 第2卷 第3期   页码 295-297 doi: 10.1007/s11684-008-0056-4

摘要： The aim of this paper is to investigate a method which may decrease the incidence and severity of oculocardiac reflex (OCR) without drugs. One hundred and sixty children undergoing strabismus surgery were allocated to two groups using double-blind randomization. OCR was defined as a decrease of more than 10% from the baseline heart rate during operation. An alarm sounded and a lamp flashed as soon as OCR occurred in group I, and neither of the above happened in group II. OCR occurred (1.151 ± 0.858) times in group I and (2.287 ± 1.371) times in group II ( < 0.05). Heart rate decreased by (23 ± 19) bpm in group I and (35 ± 28) bpm in group II ( < 0.05). The duration of OCR in group I and group II was (4.36 ± 4.26)s and (7.62 ± 6.41)s, respectively ( < 0.05). The recovery time for group I and group II was (15.36 ± 13.28)s and (32.36 ± 19.57)s, respectively ( < 0.05). The numbers of times of interruption were 8 in group I (10%) and 26 in group II (32%) ( < 0.01). This method significantly decreased the incidence and severity of OCR during strabismus surgery in children.
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Current progress on scaffolds of tissue engineering heart valves

DONG Nianguo, SHI Jiawei, CHEN Si, HONG Hao, HU Ping

《医学前沿（英文）》 2008年 第2卷 第3期   页码 229-234 doi: 10.1007/s11684-008-0043-9

摘要： Tissue engineering heart valves (TEHV) may be the most promising valve substitute, but the study has been relatively stagnant in the recent five years due to the special position, function and mechanical property of heart valves. It is one of the key factors to select an ideal scaffold material in the construction of TEHV. And this article will briefly review the current research and progress on the scaffolds of TEHV, especially based on Chinese works.

关键词： function     scaffold     promising     research     engineering    

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Cluster analysis for syndromes of real-world coronary heart disease with angina pectoris

Yufeng Zhao, Xueyun Yu, Xinyu Cao, Lin Luo, Liyun He, Shusong Mao, Li Ma, Peijing Rong, Yuxue Zhao, Guozheng Li, Baoyan Liu

《医学前沿（英文）》 2018年 第12卷 第5期   页码 566-571 doi: 10.1007/s11684-017-0556-1

摘要：

Syndromes of coronary heart disease with angina pectoris were analyzed to provide guidance for clinical practice and to improve accuracy of traditional Chinese medicine (TCM) diagnoses and efficacy of TCM treatment. A total of 860 cases with coronary heart disease with angina pectoris were selected from TCM Clinical Research Information Sharing System for TCM clinics and research. Syndromes were automatically extracted with the cluster method and were analyzed to provide objective evidence for clinical studies. Final syndrome classifications were recognized and confirmed by clinical experts. Popular syndromes included Qi and blood deficiency, blood stasis and obstruction collaterals, liver depression and spleen deficiency, and Qi stagnation and blood stasis. Syndromes Qi and blood deficiency and blood stasis and obstruction collaterals accounted for 28.61% of total syndromes, whereas liver depression and spleen deficiency and Qi stagnation and blood stasis accounted for 26.44%. The main syndrome elements comprised Qi deficiency, blood deficiency, blood stasis, and Qi stagnation.

关键词： syndrome differentiation     real-world study     coronary heart disease with angina pectoris     cluster analysis    

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serum leptin and its relationship with platelet membrane glycoprotein Ib in patients with coronary heart

XIA Dasheng, SONG Yanqiu, LI Chao, ZHANG Feng, WEI Minxin

《医学前沿（英文）》 2007年 第1卷 第4期   页码 352-355 doi: 10.1007/s11684-007-0067-6

摘要： The aim of this paper was to investigate the change of serum leptin and its relationship with platelet membrane glycoprotein Ib (GP Ib) in patients with coronary heart disease (CHD). The enrolled included 50 patients with CHD (CHD group) and 30 patients without CHD (control group) who were diagnosed by coronary angiography. The positive percentage and the average fluorescence intensity of platelet membrane GP Ib were detected by full-blood flow cytometry. Serum leptin was detected by enzyme linked immunosorbent assay. The positive percentage and the average fluorescence intensity of platelet membrane GP Ib in the CHD group were significantly lower than those in the control group (<0.05). After correcting the differences of systolic blood pressure, body mass index (BMI), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), fasting glucose, PPBS, fasting insulin and quantitative insulin sensitive index, serum leptin level in the CHD group was significantly higher than that in the control group (<0.05). Single factor correlative analysis revealed that serum leptin in CHD patients was negatively correlated with the average fluorescence intensity of platelet membrane GP Ib (<0.05). Multifactorial stepwise regression analysis showed that serum leptin in CHD patients was independently negatively correlated with the average fluorescence intensity of platelet membrane GP Ib (<0.05). Logistic analysis demonstrated that serum leptin was independently correlated with the risk of CHD (<0.05). Hyperleptinemia was verified in CHD patients. The increase of serum leptin could affect blood platelet activation. Hyperleptinemia may play an important role in the pathogenesis of CHD.
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免疫细胞在器官移植免疫排斥和免疫耐受中的不同作用 Review

干晓杰, 古鉴, 鞠峥, 吕凌

《工程（英文）》 2022年 第10卷 第3期   页码 44-56 doi: 10.1016/j.eng.2021.03.029

摘要：

器官移植免疫排斥反应是由多种细胞参与的复杂的免疫应答过程，是决定移植成败和患者生存的关键因素。目前大多数器官移植患者采用免疫抑制剂和生物制剂的组合疗法来控制移植器官的免疫排斥反应，然而免疫抑制剂的使用会降低移植患者免疫系统功能，导致严重的并发症，如慢性感染、恶性肿瘤等。因
此，彻底了解器官移植免疫耐受和免疫排斥的相关机制对于开发更好的治疗方案和改善患者预后至关重要。本文对免疫细胞在器官移植免疫排斥和免疫耐受诱导过程中的作用，以及目前针对移植患者处于临床试验阶段的新型细胞治疗进行概述。

关键词： 免疫细胞     固有免疫细胞     适应性免疫细胞     器官移植     免疫耐受    

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Long non-coding RNA SAP30-2:1 is downregulated in congenital heart disease and regulates cell proliferation

Jing Ma, Shiyu Chen, Lili Hao, Wei Sheng, Weicheng Chen, Xiaojing Ma, Bowen Zhang, Duan Ma, Guoying Huang

《医学前沿（英文）》 2021年 第15卷 第1期   页码 91-100 doi: 10.1007/s11684-020-0778-5

摘要： Congenital heart disease (CHD) is the most common birth defect worldwide. Long non-coding RNAs (lncRNAs) have been implicated in many diseases. However, their involvement in CHD is not well understood. This study aimed to investigate the role of dysregulated lncRNAs in CHD. We used Gene Expression Omnibus data mining, bioinformatics analysis, and analysis of clinical tissue samples and observed that the novel lncRNA SAP30-2:1 with unknown function was significantly downregulated in damaged cardiac tissues from patients with CHD. Knockdown of lncRNA SAP30-2:1 inhibited the proliferation of human embryonic kidney and AC16 cells and decreased the expression of heart and neural crest derivatives expressed 2 (HAND2). Moreover, lncRNA SAP30-2:1 was associated with HAND2 by RNA immunoprecipitation. Overall, these results suggest that lncRNA SAP30-2:1 may be involved in heart development through affecting cell proliferation via targeting HAND2 and may thus represent a novel therapeutic target for CHD.

关键词： congenital heart disease     Gene Expression Omnibus     lncRNA SAP30-2:1     cell proliferation     RNA immunoprecipitation     HAND2    

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标题 作者 时间 类型 操作

The clinical impact of tricuspid regurgitation in patients with a biatrial orthotopic heart transplant

期刊论文

Methodologies for the establishment of an orthotopic transplantation model of ovarian cancer in mice

null

期刊论文

Intra-abdominal hypertension is an independent cause of acute renal failure after orthotopic liver transplantation

SHU Ming, PENG Chenghong, CHEN Hao, SHEN Boyong, ZHOU Guangwen, SHEN Chuan, LI Hongwei

期刊论文

FMO3--TMAO axis modulates the clinical outcome in chronic heart-failure patients with reduced ejection

期刊论文

A literature review of perishable medical resource management

期刊论文

The role of natriuretic peptide precursor A gene polymorphism in the development of coronary heart disease

Ripen NSENGA MD, Longxian CHENG PhD, Mei’an HE PhD, Tangchun WU PhD,

期刊论文

Applications of traditional pump design theory to artificial heart and CFD simulation

WANG Yingpeng, SONG Xinwei, YING Chuntong

期刊论文

Adiponectin: mechanisms and new therapeutic approaches for restoring diabetic heart sensitivity to ischemic

null

期刊论文

Prognostic value of fasting glucose on the risk of heart failure and left ventricular systolic dysfunction

Hui Wang, Yang Zhang, Zhujun Shen, Ligang Fang, Zhenyu Liu, Shuyang Zhang

期刊论文

Setting up a heart rate alarm limit to decrease oculocardiac reflex during strabismus surgery in children

ZHANG Kangkang, GU Enhua, LU Junjie

期刊论文

Current progress on scaffolds of tissue engineering heart valves

DONG Nianguo, SHI Jiawei, CHEN Si, HONG Hao, HU Ping

期刊论文

Cluster analysis for syndromes of real-world coronary heart disease with angina pectoris

Yufeng Zhao, Xueyun Yu, Xinyu Cao, Lin Luo, Liyun He, Shusong Mao, Li Ma, Peijing Rong, Yuxue Zhao, Guozheng Li, Baoyan Liu

期刊论文

serum leptin and its relationship with platelet membrane glycoprotein Ib in patients with coronary heart

XIA Dasheng, SONG Yanqiu, LI Chao, ZHANG Feng, WEI Minxin

期刊论文

免疫细胞在器官移植免疫排斥和免疫耐受中的不同作用

干晓杰, 古鉴, 鞠峥, 吕凌

期刊论文

Long non-coding RNA SAP30-2:1 is downregulated in congenital heart disease and regulates cell proliferation

Jing Ma, Shiyu Chen, Lili Hao, Wei Sheng, Weicheng Chen, Xiaojing Ma, Bowen Zhang, Duan Ma, Guoying Huang

期刊论文