Journal of Vascular Research最新文献

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RIP3 augments neuroinflammation by facilitating neutrophil infiltration during an ischemic stroke. 在缺血性中风期间,RIP3 通过促进中性粒细胞浸润来加重神经炎症。
IF 1.8 4区 医学
Journal of Vascular Research Pub Date : 2024-11-21 DOI: 10.1159/000542571
Baiyu Li, Zexia Ling, Yanyan Wang, Yinhua Xing
{"title":"RIP3 augments neuroinflammation by facilitating neutrophil infiltration during an ischemic stroke.","authors":"Baiyu Li, Zexia Ling, Yanyan Wang, Yinhua Xing","doi":"10.1159/000542571","DOIUrl":"https://doi.org/10.1159/000542571","url":null,"abstract":"<p><strong>Introduction: </strong>Neutrophil infiltration is responsible for the neuroinflammation during an ischemic stroke. Here, we explored the role of receptor-interacting protein kinase 3 (RIP3) in neutrophil infiltration during an ischemic stroke.</p><p><strong>Methods: </strong>The rat middle cerebral artery occlusion (MCAO) model was utilized to identify pivotal proteins involved in neutrophil infiltration during an ischemic stroke. Neutrophils were isolated from the peripheral blood of mice, and a co-immunoprecipitation (co-IP) assay was performed to identify the proteins that interact with RIP3.</p><p><strong>Results: </strong>The rat MCAO model was successfully established. Myeloperoxidase (MPO) was significantly up-regulated in the MCAO group, indicating the presence of neutrophil infiltration. RIP3 protein level exhibited a similar trend to MPO protein level, suggesting that neuroinflammation might be partly activated by RIP3 through the promotion of neutrophil infiltration. Co-immunoprecipitation (co-IP) and mass spectrometry (MS) analyses suggested that RIP3 facilitated neutrophil infiltration partly by affecting protein kinases (Rock1 and Prkaca) downstream of RIP3, and the interaction between RIP3 and Rock1 or Prkaca was validated by IF and co-IP assays.</p><p><strong>Conclusion: </strong>In this study, it was observed that RIP3 affects neutrophil infiltration, a critical phenomenon associated with neuronal injury during ischemic stroke, partly by the modulation of downstream proteins such as Rock1 and Prkaca.</p>","PeriodicalId":17530,"journal":{"name":"Journal of Vascular Research","volume":" ","pages":"1-17"},"PeriodicalIF":1.8,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142686954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterising the Time Course of the Dilatory Response of Healthy Retinal Arteries during Flicker-Light Provocation. 描述闪烁光刺激时健康视网膜动脉扩张反应的时间过程
IF 1.8 4区 医学
Journal of Vascular Research Pub Date : 2024-11-19 DOI: 10.1159/000541443
Robert J Summers, Rebekka Heitmar
{"title":"Characterising the Time Course of the Dilatory Response of Healthy Retinal Arteries during Flicker-Light Provocation.","authors":"Robert J Summers, Rebekka Heitmar","doi":"10.1159/000541443","DOIUrl":"https://doi.org/10.1159/000541443","url":null,"abstract":"<p><strong>Introduction: </strong>The dilatory response of healthy retinal arterioles to flicker-light (FL) provocation appears to be biphasic. The vessel diameter rapidly increases (acute phase) over 5-10 s, then barely increases thereafter (maintenance phase) until FL cessation. This reaction is usually characterised at a single point by two parameters: maximum dilation (MD) relative to baseline diameter (MD, %) and time to MD (RT, s). This paper describes the biphasic reaction of retinal arteries during FL provocation using a bi-linear function.</p><p><strong>Methods: </strong>Retinal arterioles from 45 adults were examined during flicker provocation. Each individual time course of arterial diameter change during FL provocation was characterised by a bi-linear equation and compared with MD and RT.</p><p><strong>Results: </strong>Slopes of the acute phase were 0.506%/s, and the maintenance phase was nearly flat (0.012%/s). The mean time at which the reaction changed from acute to maintenance phase was 7.4 s which is significantly different from RT (16.0 s). Mean dilation at this point (2.987%) was significantly different from MD (3.734%), but it was still 80% of MD in less than half of RT.</p><p><strong>Conclusion: </strong>Bi-linear fitting parameters better characterises the arterial dilatory response than MD and RT. Further stratification of clinical groups using bi-linear fitting may provide insight of the underlying physiology of vessel dilation for different pathologies.</p>","PeriodicalId":17530,"journal":{"name":"Journal of Vascular Research","volume":" ","pages":"1-9"},"PeriodicalIF":1.8,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142676032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Perfusion staining methods for visualization of the intact microvascular networks in whole mount skeletal muscle preparations. 灌注染色法,用于观察整块骨骼肌制备物中完整的微血管网络。
IF 1.8 4区 医学
Journal of Vascular Research Pub Date : 2024-11-19 DOI: 10.1159/000542663
Barbara M Hyde-Lay, Mackenzie E Charter, Coral L Murrant
{"title":"Perfusion staining methods for visualization of the intact microvascular networks in whole mount skeletal muscle preparations.","authors":"Barbara M Hyde-Lay, Mackenzie E Charter, Coral L Murrant","doi":"10.1159/000542663","DOIUrl":"https://doi.org/10.1159/000542663","url":null,"abstract":"<p><strong>Introduction: </strong>Visualization of the intact microvascular network in skeletal muscle requires labeling the entire network in whole mount preparations where muscle fibre length can be set to near optimal but the tools to do this are not clear.</p><p><strong>Methods: </strong>We intravascularly injected CD-1 mice with different fluorescently labelled lectins (fluorescent isolectin GS-IB4 (ISO), wheat germ agglutinin (WGA), lycopersicon esculentum (tomato) (LYCO) or FITC-labelled gel. Soleus, extensor digitorum longus, diaphragm, gluteus maximus and cremaster muscles were excised, pinned at optimal sarcomere length and viewed using fluorescence microscopy.</p><p><strong>Results: </strong>WGA and LYCO were the effective at labeling the entire vascular network with WGA labeling capillaries more bright. ISO labelled the arteriolar vasculature and early segments of the capillaries but not the full length of the capillaries or the venular network. FITC-labelled gel was effective at labelling the microvascular network but not all small vessels were consistently labelled. The pattern of staining for each labelling method was similar across all muscle fibre-types tested.</p><p><strong>Conclusions: </strong>WGA was optimal for perfusion labeling and visualization of the intact microvascular network in whole mount skeletal muscle preparations and can be used in combination with ISO to distinguish the arteriolar and venous sides of the network.</p>","PeriodicalId":17530,"journal":{"name":"Journal of Vascular Research","volume":" ","pages":"1-22"},"PeriodicalIF":1.8,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142676038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cerebral Cortical Vasodilation via Nicotinic Receptors by Heated Tobacco Product Aerosol Extract in Rats. 加热烟草制品气溶胶提取物通过尼古丁受体对大鼠大脑皮层血管的扩张作用
IF 1.8 4区 医学
Journal of Vascular Research Pub Date : 2024-11-05 DOI: 10.1159/000541726
Sae Uchida, Jura Moriya, Daichi Morihara, Mayura Shimura, Fusako Kagitani
{"title":"Cerebral Cortical Vasodilation via Nicotinic Receptors by Heated Tobacco Product Aerosol Extract in Rats.","authors":"Sae Uchida, Jura Moriya, Daichi Morihara, Mayura Shimura, Fusako Kagitani","doi":"10.1159/000541726","DOIUrl":"https://doi.org/10.1159/000541726","url":null,"abstract":"<p><strong>Introduction: </strong>Smoking increases the risk of lung cancer due to a number of components of smoke. The use of novel heated tobacco products (HTPs), alternative to conventional combustion cigarettes, has increased in recent years. However, the in vivo biological effects of HTPs are poorly understood. This study aimed to clarify the acute effects of injecting aerosol extract prepared from an HTP on regional cerebral blood flow (rCBF) in rat cortex by comparing them to the effects of injecting smoke extract prepared from conventional combustible cigarettes.</p><p><strong>Methods: </strong>In urethane anesthetized rats, rCBF was measured using laser speckle contrast imaging simultaneously with arterial pressure.</p><p><strong>Results: </strong>Both cigarette smoke extract and HTP aerosol extract, at a dose equivalent to 30 μg nicotine/kg, injected intravenously, increased cortical rCBF without changing arterial pressure. The magnitude and time course of the increased rCBF response to both extracts were similar throughout the cortical area, and the rCBF increases were all abolished by dihydro-β-erythroidine, an α4β2-preferring nicotinic acetylcholine receptor (nAChR) antagonist.</p><p><strong>Conclusion: </strong>In conclusion, our study demonstrated that the effect of injecting aerosol extract prepared from an HTP, an acute increase in cortical rCBF, is mediated via activation of α4β2-like neuronal nAChRs in the brain.</p>","PeriodicalId":17530,"journal":{"name":"Journal of Vascular Research","volume":" ","pages":"1-9"},"PeriodicalIF":1.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142583763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rivaroxaban as a protector of Oxidative Stress-induced Vascular Endothelial Glycocalyx Damage via The IQGAP1/PAR1-2/PI3K/Akt Pathway. 利伐沙班通过 IQGAP1/PAR1-2/PI3K/Akt 通路保护氧化应激诱导的血管内皮糖萼损伤
IF 1.8 4区 医学
Journal of Vascular Research Pub Date : 2024-11-02 DOI: 10.1159/000542419
Lisa Kitasato, Minako Yamaoka-Tojo, Toshiyuki Iwaya, Yusuke Murayama, Yuki Ikeda, Takehiro Hashikata, Jun Oikawa, Machika Suzuki, Nonoka Misawa, Rei Kawashima, Fumihiro Ogawa, Junya Ako
{"title":"Rivaroxaban as a protector of Oxidative Stress-induced Vascular Endothelial Glycocalyx Damage via The IQGAP1/PAR1-2/PI3K/Akt Pathway.","authors":"Lisa Kitasato, Minako Yamaoka-Tojo, Toshiyuki Iwaya, Yusuke Murayama, Yuki Ikeda, Takehiro Hashikata, Jun Oikawa, Machika Suzuki, Nonoka Misawa, Rei Kawashima, Fumihiro Ogawa, Junya Ako","doi":"10.1159/000542419","DOIUrl":"https://doi.org/10.1159/000542419","url":null,"abstract":"<p><strong>Introduction: </strong>The vascular endothelial glycocalyx, crucial for blood vessel integrity and homeostasis, is vulnerable to oxidative stress, leading to endothelial dysfunction, which strongly correlates with cardiovascular disease (CVD). This study investigates the protective effects of rivaroxaban, a FXa inhibitor, on the glycocalyx under oxidative stress condition.</p><p><strong>Methods: </strong>We examined the impact of rivaroxaban on human umbilical vein endothelial cells (HUVECs) exposed to acute and chronic H₂O₂-induced oxidative stress.</p><p><strong>Results: </strong>Rivaroxaban dose-dependently suppressed syndecan-1, a key component of the glycocalyx, shedding from cell surface, and enhanced protease-activated receptor (PAR)1-PAR2/ phosphatidylinositol-3-kinase (PI3K)-dependent cell viability after acute induction of H2O2. This protective effect was linked to the translocation of IQGAP1, a scaffold protein that modulates the actin cytoskeleton, to the perinucleus from the cell membrane. Under chronic H2O2 treatments, rivaroxaban improves cell viability accompanied by an increase in hyaluronidase activities, aiding the turnover and remodeling of hyaluronic acid within the glycocalyx.</p><p><strong>Conclusion: </strong>We identify that rivaroxaban protects against oxidative stress-induced endothelial glycocalyx damage and cell viability through IQGAP1/PAR1-2/PI3K/Akt pathway, offering a potential to be a therapeutic target for CVD prevention.</p>","PeriodicalId":17530,"journal":{"name":"Journal of Vascular Research","volume":" ","pages":"1-24"},"PeriodicalIF":1.8,"publicationDate":"2024-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Toll-Like Receptor 2 Attenuates the Formation and Progression of Angiotensin II-Induced Abdominal Aortic Aneurysm in ApoE-/- Mice. Toll-Like Receptor 2 可减轻血管紧张素 II 诱导的载脂蛋白E-/-小鼠腹主动脉瘤的形成和发展。
IF 1.8 4区 医学
Journal of Vascular Research Pub Date : 2024-10-28 DOI: 10.1159/000541651
Yali Zhang, Jessamyn Bagley, Ho-Jin Park, Xuehong Cao, Elena Maganto-Garcia, Andrew Lichtman, Debbie Beasley, Jonas B Galper
{"title":"Toll-Like Receptor 2 Attenuates the Formation and Progression of Angiotensin II-Induced Abdominal Aortic Aneurysm in ApoE-/- Mice.","authors":"Yali Zhang, Jessamyn Bagley, Ho-Jin Park, Xuehong Cao, Elena Maganto-Garcia, Andrew Lichtman, Debbie Beasley, Jonas B Galper","doi":"10.1159/000541651","DOIUrl":"https://doi.org/10.1159/000541651","url":null,"abstract":"<p><strong>Introduction: </strong>We demonstrated Toll-like receptor (TLR) 4 in the pathogenesis of angiotensin II (AngII)-mediated abdominal aortic aneurysm (AAA) formation. Here, we study TLR2 in the AAA formation.</p><p><strong>Methods: </strong>Male ApoE-/- and ApoE-/-TLR2-/- mice were treated with AngII. Mice were injected with the TLR2 agonist Pam3CSK4. The incidence and severity of AAA were determined. MCP-1, MCP-5, RANTES, CXCL10, CCR5, and CXCR3 were analyzed. M1 and M2 macrophages in the aorta were detected by flow cytometry.</p><p><strong>Results: </strong>These studies demonstrated an increase in AAA formation in TLR2-/- mice and a decrease by Pam3CSK4. Pam3CSK4 decreased the ratio of M1/M2 and the levels of RANTES, CXCL10, CCR5, and CXCR3. Furthermore, Pam3CSK4 treatment 1 week following AngII retarded the progression of AAA.</p><p><strong>Conclusion: </strong>These data demonstrated a protective effect of TLR2 signaling on AAA in association with a decrease in the ratio of M1 to M2 macrophages and the expression of chemokines and their receptors. Furthermore, the treatment of Pam3CSK4 after AngII demonstrated a marked retardation of lesion progression. Given the fact that most AAA patients are detected late in the disease process, these findings suggest that TLR2 stimulation may play a therapeutic role in retarding disease progression.</p>","PeriodicalId":17530,"journal":{"name":"Journal of Vascular Research","volume":" ","pages":"1-14"},"PeriodicalIF":1.8,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142522250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Endothelial Dysfunction Does Not Occur after Acute, Elevated Homocysteine Exposure of the Lumen of the Iliac Artery of the Anaesthetised Pig. 麻醉猪髂动脉腔内同型半胱氨酸急性升高后不会出现内皮功能障碍
IF 1.8 4区 医学
Journal of Vascular Research Pub Date : 2024-10-09 DOI: 10.1159/000541398
Farouk Markos, Andrew J O'Leary, Mark I M Noble, Therese Ruane-O'Hora
{"title":"Endothelial Dysfunction Does Not Occur after Acute, Elevated Homocysteine Exposure of the Lumen of the Iliac Artery of the Anaesthetised Pig.","authors":"Farouk Markos, Andrew J O'Leary, Mark I M Noble, Therese Ruane-O'Hora","doi":"10.1159/000541398","DOIUrl":"https://doi.org/10.1159/000541398","url":null,"abstract":"<p><strong>Introduction: </strong>Elevated luminal homocysteine has been linked with cardiovascular disease; however, whether there is a direct effect of homocysteine on blood vessel endothelium is not clear. In this study, the acute effect of luminal homocysteine on iliac artery endothelial function was assessed in the anaesthetised pig.</p><p><strong>Methods: </strong>Hyperhomocysteinaemic blood was injected into an occluded segment of the iliac in the anaesthetised pig for 20 min, and the effect on atrial diameter during the occlusion and during the reactive hyperaemia assessed.</p><p><strong>Results: </strong>No significant changes in arterial diameter or pressure were observed during the incubation period at homocysteine concentrations of 10, 20, 40 and 100 µ<sc>M</sc>. There was also no difference in the magnitude of the iliac diameter increase in the response to reactive hyperaemia when the incubation period was completed.</p><p><strong>Conclusion: </strong>There is no evidence of endothelial dysfunction in response to an acute 20-min elevation in homocysteine in an intact conduit artery.</p>","PeriodicalId":17530,"journal":{"name":"Journal of Vascular Research","volume":" ","pages":"1-6"},"PeriodicalIF":1.8,"publicationDate":"2024-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142391533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Regulation of Skeletal Muscle Resistance Arteriolar Tone: Temporal Variability in Vascular Responses. 骨骼肌阻力动脉张力的调节:血管反应的时空变异性。
IF 1.8 4区 医学
Journal of Vascular Research Pub Date : 2024-10-03 DOI: 10.1159/000541169
Brayden D Halvorson, Aaron D Ward, Donna Murrell, James C Lacefield, Robert W Wiseman, Daniel Goldman, Jefferson C Frisbee
{"title":"Regulation of Skeletal Muscle Resistance Arteriolar Tone: Temporal Variability in Vascular Responses.","authors":"Brayden D Halvorson, Aaron D Ward, Donna Murrell, James C Lacefield, Robert W Wiseman, Daniel Goldman, Jefferson C Frisbee","doi":"10.1159/000541169","DOIUrl":"https://doi.org/10.1159/000541169","url":null,"abstract":"<p><strong>Introduction: </strong>A full understanding of the integration of the mechanisms of vascular tone regulation requires an interrogation of the temporal behavior of arterioles across vasoactive challenges. Building on previous work, the purpose of the present study was to start to interrogate the temporal nature of arteriolar tone regulation with physiological stimuli.</p><p><strong>Methods: </strong>We determined the response rate of ex vivo proximal and in situ distal resistance arterioles when challenged by one-, two-, and three-parameter combinations of five major physiological stimuli (norepinephrine, intravascular pressure, oxygen, adenosine [metabolism], and intralumenal flow). Predictive machine learning models determined which factors were most influential in controlling the rate of arteriolar responses.</p><p><strong>Results: </strong>Results indicate that vascular response rate is dependent on the intensity of the stimulus used and can be severely hindered by altered environments, caused by application of secondary or tertiary stimuli. Advanced analytics suggest that adrenergic influences were dominant in predicting proximal arteriolar response rate compared to metabolic influences in distal arterioles.</p><p><strong>Conclusion: </strong>These data suggest that the vascular response rate to physiologic stimuli can be strongly influenced by the local environment. Translating how these effects impact vascular networks is imperative for understanding how the microcirculation appropriately perfuses tissue across conditions.</p>","PeriodicalId":17530,"journal":{"name":"Journal of Vascular Research","volume":" ","pages":"1-29"},"PeriodicalIF":1.8,"publicationDate":"2024-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142372206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Senescent CD4+ T-Cell Phenotypes and Inflammatory Milieu in the Coronary and Systemic Circulation in ST-Elevation Myocardial Infarction: An Exploratory Study. ST段抬高型心肌梗死患者冠状动脉和全身循环中衰老的CD4+ T细胞表型和炎症环境:一项探索性研究
IF 1.7 4区 医学
Journal of Vascular Research Pub Date : 2024-09-18 DOI: 10.1159/000541069
Fernanda Bocanegra-Zamora,Fernanda Espinosa-Bautista,Gian M Jiménez-Rodríguez,Felipe Masso,Araceli Paez,Hector Gonzalez-Pacheco,Mariana Patlán,Guering Eid-Lidt,Luis M Amezcua-Guerra
{"title":"Senescent CD4+ T-Cell Phenotypes and Inflammatory Milieu in the Coronary and Systemic Circulation in ST-Elevation Myocardial Infarction: An Exploratory Study.","authors":"Fernanda Bocanegra-Zamora,Fernanda Espinosa-Bautista,Gian M Jiménez-Rodríguez,Felipe Masso,Araceli Paez,Hector Gonzalez-Pacheco,Mariana Patlán,Guering Eid-Lidt,Luis M Amezcua-Guerra","doi":"10.1159/000541069","DOIUrl":"https://doi.org/10.1159/000541069","url":null,"abstract":"INTRODUCTIONIn ST-elevation myocardial infarction (STEMI), inflammation is pivotal, with early senescent CD4+CD28null cells implicated in its pathogenesis. However, the functional phenotype of these cells within the coronary circulation remains unclear.METHODSWe examined CD4+ cell subpopulations in blood samples from the coronary sinus and vena cava of 24 STEMI patients and the cephalic vein of seven healthy controls.RESULTSOur findings revealed reduced CD4+ cell counts in STEMI patients compared to controls (1,998, 1,275-3,268 vs. 4,278, 3,595-4,449), alongside an increased proportion of CD4+ cells lacking CD28 expression (20.1 vs. 6.1%). These CD4+CD28null cells in STEMI predominantly exhibited a Th1 phenotype (47.8% vs. 6.6%). Intriguingly, no significant differences were detected in CD4+CD28null cells between coronary sinus and vena cava, and cytokine levels in these compartments remained similar.CONCLUSIONCD4+CD28null cells are increased in STEMI, mainly polarized toward a Th1 phenotype, and distributed equally between the different vascular beds.","PeriodicalId":17530,"journal":{"name":"Journal of Vascular Research","volume":"9 1","pages":"1-7"},"PeriodicalIF":1.7,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142253533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
In Memoriam: A Tribute to Eva Aralikatti. 悼念向伊娃-阿拉里卡蒂致敬。
IF 1.8 4区 医学
Journal of Vascular Research Pub Date : 2024-08-30 DOI: 10.1159/000540829
Pooneh Bagher
{"title":"In Memoriam: A Tribute to Eva Aralikatti.","authors":"Pooneh Bagher","doi":"10.1159/000540829","DOIUrl":"https://doi.org/10.1159/000540829","url":null,"abstract":"","PeriodicalId":17530,"journal":{"name":"Journal of Vascular Research","volume":" ","pages":"1"},"PeriodicalIF":1.8,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142108792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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