151
|
Zhou S, Zuo L, Yang S, He X, Yang J, Gui L, Li R, Yang Y. 99P Sintilimab plus nab-paclitaxel in platinum-refractory head and neck squamous cell carcinoma: A phase II trial. IMMUNO-ONCOLOGY AND TECHNOLOGY 2022. [DOI: 10.1016/j.iotech.2022.100203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
152
|
Wang N, Mu M, Liu Z, Reheman Z, Yang J, Nie W, Shi Y, Nie J. Correlation between primary family caregiver identity and maternal depression risk in poor rural China. Hong Kong Med J 2022; 28:457-465. [PMID: 36473710 DOI: 10.12809/hkmj219875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Prenatal and postpartum depression are important public health challenges because of their long-term adverse impacts on maternal and neonatal health. This study investigated the risk of maternal depression among pregnant and postpartum women in poor rural China, along with the correlation between primary family caregiver identity and maternal depression risk. METHODS Pregnant women and new mothers were randomly selected from poor rural villages in the Qinba Mountains area in Shaanxi. Basic demographic information was collected regarding the women and their primary family caregivers. The Edinburgh Postnatal Depression Scale was used to identify women at risk of depression, and the Perceived Social Support Scale was used to evaluate perceived family support. RESULTS This study included 220 pregnant women and 473 new mothers. The mean proportions of women at risk of prenatal and postpartum depression were 19.5% and 18.6%, respectively. Regression analysis showed that identification of the baby's grandmother as the primary family caregiver was negatively correlated with maternal depression risk (β=-0.979, 95% confidence interval [CI]=-1.946 to -0.012, P=0.047). However, the husband's involvement in that role was not significantly correlated with maternal depression risk (β=-0.499, 95% CI=-1.579 to 0.581, P=0.363). Identification of the baby's grandmother as the primary family caregiver was positively correlated with family support score (β=0.967, 95% CI=-0.062 to 1.996, P=0.065). CONCLUSION Prenatal and postpartum depression are prevalent in poor rural China. The involvement of the baby's grandmother as the primary family caregiver may reduce maternal depression risk, but the husband's involvement in that role has no effect.
Collapse
|
153
|
Tan L, Yang J, Yang J, Yang Z, Yu K. Impact of prior failed irrigation and debridement on outcomes of subsequent two-stage revision arthroplasty: a systematic review and meta-analysis. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2022; 26:9195-9203. [PMID: 36591831 DOI: 10.26355/eurrev_202212_30672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVE This study aimed at examining if prior failed debridement, antibiotics, and implant retention (DAIR) for prosthetic joint infection have an impact on the success of subsequent two-stage revision arthroplasty (2SRA). MATERIALS AND METHODS Search was conducted on PubMed, Embase, and Google Scholar up to 14th April 2022 for studies comparing 2SRA with and without a history of DAIR. RESULTS Six retrospective studies were included. The success of 2SRA was defined as either absence of additional surgical intervention for infection or absence of antibiotic suppression or both. We noted no statistically significant difference in the odds of success between failed DAIR and no DAIR group, albeit with an inclination of reduced success with prior failed DAIR (OR 0.63 95% CI 0.33, 1.19 I2=66% p=0.16). Five studies reported adjusted outcomes. The meta-analysis demonstrated no statistically significant difference in the odds of success between failed DAIR and no DAIR groups (OR 0.57 95% CI 0.26, 1.26 I2=66% p=0.17). During sensitivity analysis, the removal of a single study changed the effect size indicating significantly lower success rates in failed DAIR group. CONCLUSIONS Our results indicate that patients undergoing 2SRA after failed DAIR may have a non-significant tendency of lower success rates as compared to patients directly undergoing 2SRA. However, current evidence is scarce and fraught with several limitations and there is a need for further research to delineate the impact of failed DAIR on the success of 2SRA.
Collapse
|
154
|
Xu L, Chen J, Yang J, Gong W, Zhang Y, Zhao H, Yan S, Jia W, Wu Z, Liu C, Song X, Ma Y, Yang X, Gao Z, Zhang N, Zheng X, Li M, Zhang X, Chen M. 165P Efficacy and safety of tislelizumab (TIS) plus lenvatinib (LEN) as first-line treatment in patients (pts) with unresectable hepatocellular carcinoma (uHCC): A single-arm, multicenter, phase II trial. IMMUNO-ONCOLOGY AND TECHNOLOGY 2022. [DOI: 10.1016/j.iotech.2022.100277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
155
|
Zhou C, Cheng Q, Chen T, Meng L, Sun T, Hu B, Yang J, Zhang D. Prediction of banana quality during storage by brown area. ACTA ALIMENTARIA 2022. [DOI: 10.1556/066.2022.00154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
AbstractTo study the feasibility of evaluating the quality characteristics of banana based on the browning area. The texture characteristics, total soluble solids (TSS), ascorbic acid, malondialdehyde (MDA) concentrations, relative conductivity, polyphenol oxidase, peroxidase, and phenylalanine ammonia-lyase (PAL) activities in banana peels were detected during storage. A linear model was made by principal component analysis and multiple linear regression between the banana browning area and characteristic indices. The results showed that the changes in the physiological characteristics of bananas were significantly different during different storage periods. The main factors that affected the banana browning area were relative conductivity, PAL, TSS, and MDA, indicating that lipid peroxidation, respiration, and metabolism of phenylpropanoids had significant influence on the banana browning area during storage. Thus, it is feasible to predict banana quality based on changes in browning area, which could be a rapid and non-destructive detection of banana quality during storage.
Collapse
|
156
|
Yang J, Rao HY. [Evolution of clinical outcomes following hepatitis C virus clearance]. ZHONGHUA GAN ZANG BING ZA ZHI = ZHONGHUA GANZANGBING ZAZHI = CHINESE JOURNAL OF HEPATOLOGY 2022; 30:1137-1143. [PMID: 36891687 DOI: 10.3760/cma.j.cn501113-20221110-00557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 03/10/2023]
Abstract
As hepatitis C treatment entered the era of direct-acting antiviral drugs, an increasing number of patients received treatment and achieved virus clearance, but virus clearance is merely a relative endpoint. Future emphasis will be placed on post-treatment benefits and the evolution of clinical outcomes. This article aims to describe the improvement in all-cause mortality and hepatic and extrahepatic-related diseases following virus clearance, particularly in patients treated with direct-acting antiviral drugs.
Collapse
|
157
|
Cervantes R, Carosi G, Hanretty C, Kimes S, LaRoque BH, Leum G, Mohapatra P, Oblath NS, Ottens R, Park Y, Rybka G, Sinnis J, Yang J. Search for 70 μeV Dark Photon Dark Matter with a Dielectrically Loaded Multiwavelength Microwave Cavity. PHYSICAL REVIEW LETTERS 2022; 129:201301. [PMID: 36462025 DOI: 10.1103/physrevlett.129.201301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 08/29/2022] [Accepted: 09/21/2022] [Indexed: 06/17/2023]
Abstract
Microwave cavities have been deployed to search for bosonic dark matter candidates with masses of a few μeV. However, the sensitivity of these cavity detectors is limited by their volume, and the traditionally employed half-wavelength cavities suffer from a significant volume reduction at higher masses. Axion dark matter experiment (ADMX)-Orpheus mitigates this issue by operating a tunable, dielectrically loaded cavity at a higher-order mode, which allows the detection volume to remain large. The ADMX-Orpheus inaugural run excludes dark photon dark matter with kinetic mixing angle χ>10^{-13} between 65.5 μeV (15.8 GHz) and 69.3 μeV (16.8 GHz), marking the highest-frequency tunable microwave cavity dark matter search to date.
Collapse
|
158
|
Yang J, Xiong GY, Xu J, Lu WQ, Wang W. [A case of intracranial hypertension after coarctation of sigmoid sinus]. ZHONGHUA ER BI YAN HOU TOU JING WAI KE ZA ZHI = CHINESE JOURNAL OF OTORHINOLARYNGOLOGY HEAD AND NECK SURGERY 2022; 57:1339-1340. [PMID: 36404661 DOI: 10.3760/cma.j.cn115330-20220223-00080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
|
159
|
Zhang XX, Feng LZ, Lai SJ, Ma LB, Zhang T, Yang J, Wang Q, Yang WZ. [Research progress on early warning model of influenza]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 2022; 56:1576-1583. [PMID: 36372747 DOI: 10.3760/cma.j.cn112150-20220719-00735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Influenza is an acute respiratory infectious disease caused by influenza virus. It usually exhibits seasonal transmission, but the novel influenza strain can lead to a pandemic with severe human health and socioeconomic consequences. Early warning of influenza epidemic is an important strategy and means for influenza prevention and control. On the basis of reviewing the main influenza surveillance and early warning systems, this study summarizes the principles, applications, advantages and disadvantages, and development prospects of common influenza early warning models, in order to provide reference for research and application of early warning technology for influenza and other acute respiratory infectious diseases.
Collapse
|
160
|
Wang H, Lim T, Yang J, Fuller C, Phan J, Wang X. Optimizing Radiation Treatment for Head and Neck Cancer with Adapt-to-Shape Planning on a 1.5 MR-Linac. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
161
|
Xu B, Ma F, Wang S, Tong Z, Li W, Wu X, Wang X, Sun T, Pan Y, Yao H, Wang X, Luo T, Yang J, Zeng X, Zhao W, Cong X, Wang N, Xu C, Chen J. 22MO Efficacy and safety of sacituzumab govitecan in Chinese patients with metastatic triple-negative breast cancer (mTNBC) by baseline HER2 expression level: Subgroup analysis from a phase IIb trial. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
|
162
|
Yang JH, Kato T, Ahn MJ, Sakai H, Morise M, Chen YM, Han JY, Yang J, Zhao J, Huang JC, Berghoff K, Bruns R, Vioix H, Otto G, Le X, Paik P. 321MO Tepotinib in patients with MET exon 14 (METex14) skipping NSCLC: Results from all Asian patients in VISION. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
|
163
|
Yang J, Xing P, Kong Y, Xu M, Zhang L. PD-1 Inhibitor Combined with Radiotherapy and GM-CSF with or not IL-2 (PRaG regimen) in Patients with Microsatellite Stable Metastatic Colorectal Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
164
|
Yang J, Yan JS, Yang YS, Zhang X. [The application of clinical decision support system in gastrointestinal diseases]. ZHONGHUA NEI KE ZA ZHI 2022; 61:1263-1268. [PMID: 36323571 DOI: 10.3760/cma.j.cn112138-20211130-00851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
|
165
|
Zhou L, Dai T, Zhang D, Guo H, Zhou F, Shi B, Wang S, Ji Z, Wang C, Yao X, Wei Q, Chen N, Xing J, Yang J, Kong C, Huang J, Ye D. 152P An epidemiologic study on PD-L1 expression with clinical observation of initial treatment pattern in the Chinese muscle invasive urothelial bladder carcinoma patients. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
|
166
|
Xing P, Yang J, Xu M, Kong Y, Wang J, Wang J, Han D, Zhang L. PD-1 Inhibitors Combined with Radiotherapy and GM-CSF, Sequentially Followed by IL-2 (PRaG 2.0) Regimen in Metastatic Tumors: A Prospective, Multicenter, Single-Arm Clinical Trial. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
167
|
Gui L, He X, Yang J, Liu P, Qin Y, Shi YK. 230MO Pembrolizumab plus anlotinib as first-line treatment in patients of CPS≥1 with recurrent or metastatic head and neck squamous-cell carcinoma: A prospective phase II study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
|
168
|
Zhou C, Lu Y, Kim SW, Baisamut (Reungwetwattana) T, Zhou J, Zhang Y, He J, Yang J, Cheng Y, Lee SH, Chang J, Fang J, Liu Z, Bu L, Qian L, Xu T, Archer V, Hilton M, Zhou M, Zhang L. LBA11 Alectinib (ALC) vs crizotinib (CRZ) in Asian patients (pts) with treatment-naïve advanced ALK+ non-small cell lung cancer (NSCLC): 5-year update from the phase III ALESIA study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
|
169
|
Hong L, Huang Q, Zhou Y, Jhanwar G, Dursun P, Yang J, Pham H, Wu A, Yorke E, Cervino L, Deasy J, Zarepisheh M. Automated and Clinical-Criteria-Driven Planning for Lung Cancer Using the Expedited Constrained Hierarchical Optimization (ECHO) System. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.2256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
170
|
Stan D, Yang J, Wahner-Roedler D, Venegas-Pont M, Sandhu A, Fischer K, Bauer B, Rutten L, Brockman T, Valdez Soto M, Wi C, Yost K. Effect of socio-economic status and acculturation on breast cancer screening in Asian American women. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)01426-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
171
|
Yang J, Zhou J, M. li, Zhang ZY, Cheng Y, Chu D, Pan H, Wang B, Chen G, Wang K, Jiang L, Hu Y, Shi J, Hui AM, Zhou Y, Wu Z, Sun J, Tan Y, Xiang X, Wu YL. 392P A phase II study of SAF-189s in patients with advanced ROS1 fusion-positive non-small cell lung cancer. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
|
172
|
Zhang X, Zhao JL, Ding F, Yang J, Wang J, Zeng XF, Zhao Y. [Recommendations for the diagnosis and treatment of connective tissue disease associated pulmonary arterial hypertension in China]. ZHONGHUA NEI KE ZA ZHI 2022; 61:1206-1216. [PMID: 36323561 DOI: 10.3760/cma.j.cn112138-20220309-00164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Pulmonary arterial hypertension (PAH) is a clinicopathological syndrome caused by the increase of pulmonary artery, and it is the most serious complication of connective tissue disease (CTD). In recent years, a lot of progress has been made in the diagnosis, treatment and evaluation of PAH. Chinese Rheumatology Association formulated this recommendation on the basis of current experience and guidelines, in order to promote early screening, early diagnosis and early intervention of CTD-PAH, as well as patient follow-up and management, to improve the prognosis of CTD-PAH patients.
Collapse
|
173
|
Yang J. 103P Concurrent chemoradiotherapy with S-1 vs radiotherapy alone for older patients with esophageal cancer: A meta-analysis. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
|
174
|
Seow WJ, Hu W, Dai Y, Vermeulen R, Byun HM, Wong JYY, Bassig BA, Blechter B, Duan H, Niu Y, Downward G, Leng S, Ji BT, Fu W, Xu J, Meliefste K, Yang J, Ren D, Ye M, Meng T, Bin P, Hosgood HD, Silverman DT, Rothman N, Zheng Y, Lan Q. Association between diesel exhaust exposure and mitochondrial DNA methylation. Carcinogenesis 2022; 43:1131-1136. [PMID: 36200867 DOI: 10.1093/carcin/bgac077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 09/09/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Diesel exhaust is an established human carcinogen, however the mechanisms by which it leads to cancer development are not fully understood. Mitochondrial dysfunction is an established contributor to carcinogenesis. Recent studies have improved our understanding of the role played by epigenetic modifications in the mitochondrial genome on tumorigenesis. In this study, we aim to evaluate the association between diesel engine exhaust (DEE) exposure with mitochondrial DNA (mtDNA) methylation levels in workers exposed to DEE. METHODS The study population consisted of 53 male workers employed at a diesel engine manufacturing facility in Northern China who were routinely exposed to diesel exhaust in their occupational setting, as well as 55 unexposed male control workers from other unrelated factories in the same geographic area. Exposure to DEE, elemental carbon, organic carbon, and particulate matter (PM2.5) were assessed. mtDNA methylation for CpG sites (CpGs) from seven mitochondrial genes (D-Loop, MT-RNR1, MT-CO2, MT-CO3, MT-ATP6, MT-ATP8, MT-ND5) was measured in blood samples. Linear regression models were used to estimate the associations between DEE, elemental carbon, organic carbon and PM2.5 exposures with mtDNA methylation levels, adjusting for potential confounders. RESULTS DEE exposure was associated with decreased MT-ATP6 (difference= -35.6%, p-value= 0.019) and MT-ATP8 methylation (difference= -30%, p-value= 0.029) compared to unexposed controls. Exposures to elemental carbon, organic carbon, and PM2.5 were also significantly and inversely associated with methylation in MT-ATP6 and MT-ATP8 genes (all p-values < 0.05). CONCLUSIONS Our findings suggest that DEE exposure perturbs mtDNA methylation, which may be of importance for tumorigenesis.
Collapse
|
175
|
Jiao T, Mahdi A, Tengbom J, Collado A, Jurga J, Saleh N, Verouhis D, Bohm F, Zhou Z, Yang J, Pernow J. Erythrocytes from patients with ST-elevation myocardial infarction induce cardioprotection via the purinergic P2Y13 receptor and nitric oxide signalling. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Red blood cells (RBC) are suggested to act as important mediators in the regulation of cardiovascular function by exporting nitric oxide (NO) bioactivity and ATP under hypoxic/ischemic conditions. In addition, RBCs are known to protect from ischemia-reperfusion injury via the export of NO bioactivity in experimental settings. However, it remains unknown if such beneficial effects of RBCs are protective in patients with acute myocardial infarction.
Purpose
To investigate whether RBCs from patients with ST-elevation myocardial infarction (STEMI) protect against myocardial ischemia-reperfusion injury and whether such effect involves activation of purinergic and NO signalling in the RBCs.
Methods
RBCs were collected from patients with STEMI undergoing primary percutaneous coronary intervention and age- and gender-matched healthy controls. The RBCs were administered into the coronary circulation of isolated Langendorff-perfused rat hearts at the onset of global ischemia for 25 min followed by reperfusion of 60 min. Recovery of left ventricular developed pressure (LVDP) during reperfusion and infarct size were determined. All animal experiments and procedures were performed according to the guidelines by the U.S National Institutes of Health (NIH publication no 85–23, revised 1996). The present study was performed following The Code of Ethics of the World Medical Association outlined in the Declaration of Helsinki of 1975 and revised in 1983 for experiments that involve human subjects.
Results
Administration of RBCs from STEMI patients improved recovery of LVDP and reduced infarct size in hearts subjected to ischemia-reperfusion in comparison with RBCs from healthy controls (Figure 1A, B). Pre-incubation of the RBCs with the NO synthase (NOS) inhibitor L-NAME (Figure 1C, D) and the inhibitor of the NO receptor soluble guanylyl cyclase (sGC) ODQ abolished the cardioprotective effect of RBCs from STEMI patients. The cardioprotective effect was also attenuated by inhibition of cardiac cGMP-dependent protein kinase (PKG). Further, the purinergic P2Y13 receptor antagonist MRS2211 (Figure 1E, F), but not the P1 receptor antagonist 8PT applied to RBCs, attenuated the cardioprotection induced by RBCs from STEMI patients. Moreover, administration of RBCs from healthy subjects pre-incubated with a cell permeable ATP analogue improved post-ischemic recovery of LVDP and reduced infarct size. This cardioprotective effect was abolished by co-incubation of the RBCs with ODQ (Figure 2) and MRS2211.
Conclusion
Our findings demonstrate a novel function of RBCs in patients with STEMI that provides protection against myocardial ischemia-reperfusion injury via the activation of P2Y13 receptor and the NO-sGC pathway in RBCs and cardiac PKG.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): Swedish Heart and Lung Foundation; Swedish Research Council
Collapse
|