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https://www.readbyqxmd.com/read/29351435/effects-of-cigarette-smoke-on-pulmonary-endothelial-cells
#1
Qing Lu, Eric Gottlieb, Sharon Rounds
Cigarette smoking is the leading cause of preventable disease and death in the US. Cardiovascular co-morbidities associated with both active and secondhand cigarette smoking indicate the vascular toxicity of smoke exposure. Growing evidence supports the injurious effect of cigarette smoke on pulmonary endothelial cells and the roles of endothelial cell injury in development of Acute Respiratory Distress Syndrome (ARDS), emphysema, and pulmonary hypertension. This review summarizes results from studies of humans, preclinical animal models, and cultured endothelial cells that document toxicities of cigarette smoke exposure on pulmonary endothelial cell functions, including barrier dysfunction, endothelial activation and inflammation, apoptosis, and vasoactive mediator production...
January 4, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29350881/interferon-induced-protein-35-ifi35-inhibits-endothelial-cell-proliferation-migration-and-re-endothelialization-of-injured-arteries-by-inhibiting-the-nuclear-factor-kappa-b-nf-kb-pathway
#2
Dongdong Jian, Weina Wang, Xinmiao Zhou, Zhen Jia, Jing Wang, Mei Yang, Wenting Zhao, Zhen Jiang, Xiaotong Hu, Jianhua Zhu
AIM: Endothelial recovery, or re-endothelialization, plays an important role in intimal hyperplasia and atherosclerosis after endothelial injury. Studying the mechanisms of re-endothelialization and strategies to promote efficient endothelial recovery are still needed. Interferon-induced protein 35 (IFI35) is an IFN-γ-induced protein that plays important roles in the anti-virus-related immune-inflammatory response. In this study, we tested whether overexpression IFI35 affects the proliferation and migration of endothelial cells (ECs) and re-endothelialization...
January 19, 2018: Acta Physiologica
https://www.readbyqxmd.com/read/29349977/-therapeutic-effects-of-internal-drainage-by-expanding-arthroscopic-gastrocnemius-semimembranosus-bursa-and-cyst-wall-resection-for-the-treatment-of-41-patients-with-popliteal-cysts
#3
Li-Chuang Wu, Hai-Bo Zhou, Chao Zhang, Lei Chen, Cai-Long Liu
OBJECTIVE: To investigate the clinical curative effects of internal drainage by expanding arthroscopic gastrocnemius-semimembranosus bursa(GSB) and cyst wall resection for the treatment of popliteal cysts. METHODS: A retrospective analysis of patients from May 2011 to December 2015. Arthroscopic treatment for 41 patients with popliteal fossa cysts, 18 males and 23 females, aged from 34 to 67 years old, averaged 42.6 years old. All the patients had preoperative magnetic resonance imagings to confirm the diagnosis and identify the valvular opening(Gastrocnemius-Semimembranosus bursa, GSB), as well as the associated intra-articular pathology...
April 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29349556/neuropathology-correlates-of-cognitive-assessments
#4
Francesca M Brett, Hugh Kearney
BACKGROUND: Alzheimer's disease and other dementias are the fourth largest contributors to neurological disability and the second largest contributor to deaths from neurological disease. Described in the 1980s as 'the silent epidemic' these disorders principally, though not exclusively, affect persons 80 years or older, and in developed countries, this 'old old' population continues to grow. Definitive diagnosis of the underlying cause of the neurodegenerative disease relies on neuropathological evaluation...
January 18, 2018: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29349405/pseudoaneurysm-of-the-external-iliac-artery-is-a-rare-late-complication-after-total-hip-arthroplasty
#5
Shinji Fukuhara, Sachiko Kanki, Masahiro Daimon, Ryo Shimada, Hideki Ozawa, Takahiro Katsumata
Vascular injury as a delayed complication of total hip arthroplasty (THA) is rare. We present a case of pseudoaneurysm of the external iliac artery due to chronic irritation from a prominent bone spicule occurring 2 years after revision THA. We successfully managed the patient with open repair, and there has been no sign of recurrence in the 2 years since the previous surgery. This report suggests that patients who have undergone THA should be followed up carefully and assessed for vascular injuries even after a substantial time...
September 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29349380/type-iv-popliteal-arterial-entrapment-associated-with-an-osteochondroma
#6
Dustin D Lucarelli, Aswath Subram
Popliteal artery entrapment syndrome is a rare cause of peripheral vascular disease, often affecting young adults. Multiple studies have shown that osteochondromas can cause vascular injury. Intermittent compression, pseudoaneurysm, thrombosis, distal embolism, and venous thrombosis have all been described as possible complications. Here we present a case of popliteal arterial entrapment type IV with an associated tibial osteochondroma.
June 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29348884/alpha-1-antitrypsin-functions-as-a-protective-factor-in-preeclampsia-through-activating-smad2-and-inhibitor-of-dna-binding-4
#7
Yaling Feng, Nan Wang, Jianjuan Xu, Jinfang Zou, Xi Liang, Huan Liu, Ying Chen
Pre-eclampsia (PE) is one of the most common reason for high morbidity and mortality of maternal and prenatal infants. Production from oxidative stress results in maternal ROS system and anti-oxidation defense system imbalance to promote tissue ischemia and hypoxia, and ultimately impairs the maternal organs and placenta. Our previous study showed that exogenous Alpha-1-antitrypsin (AAT) and overexpression of AAT in umbilical vein cell (HUVEC) hypoxia-reoxygenation model could increase the activity of antioxidant enzymes, and played a protective role in preeclampsia animal model...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348253/multifunctional-role-of-chymase-in-acute-and-chronic-tissue-injury-and-remodeling
#8
REVIEW
Louis J Dell'Italia, James F Collawn, Carlos M Ferrario
Chymase is the most efficient Ang II (angiotensin II)-forming enzyme in the human body and has been implicated in a wide variety of human diseases that also implicate its many other protease actions. Largely thought to be the product of mast cells, the identification of other cellular sources including cardiac fibroblasts and vascular endothelial cells demonstrates a more widely dispersed production and distribution system in various tissues. Furthermore, newly emerging evidence for its intracellular presence in cardiomyocytes and smooth muscle cells opens an entirely new compartment of chymase-mediated actions that were previously thought to be limited to the extracellular space...
January 19, 2018: Circulation Research
https://www.readbyqxmd.com/read/29347992/anatomical-relation-between-s1-sacroiliac-screws-entrance-points-and-superior-gluteal-artery
#9
Yong Zhao, Libo You, Wei Lian, Dexin Zou, Shengjie Dong, Tao Sun, Shudong Zhang, Dan Wang, Jingning Li, Wenliang Li, Yuchi Zhao
BACKGROUND: To conduct radiologic anatomical study on the relation between S1 sacroiliac screws' entry points and the route of the pelvic outer superior gluteal artery branches with the aim to provide the anatomical basis and technical reference for the avoidance of damage to the superior gluteal artery during the horizontal sacroiliac screw placement. METHODS: Superior gluteal artery CTA (CT angiography) vascular imaging of 74 healthy adults (37 women and 37 men) was done with 128-slice spiral CT (computed tomography)...
January 18, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29346331/growth-hormone-gh-and-cardiovascular-system
#10
REVIEW
Diego Caicedo, Oscar Díaz, Pablo Devesa, Jesús Devesa
This review describes the positive effects of growth hormone (GH) on the cardiovascular system. We analyze why the vascular endothelium is a real internal secretion gland, whose inflammation is the first step for developing atherosclerosis, as well as the mechanisms by which GH acts on vessels improving oxidative stress imbalance and endothelial dysfunction. We also report how GH acts on coronary arterial disease and heart failure, and on peripheral arterial disease, inducing a neovascularization process that finally increases flow in ischemic tissues...
January 18, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29345193/serotonin-2a-receptor-inhibition-protects-against-the-development-of-pulmonary-hypertension-and-pulmonary-vascular-remodeling-in-neonatal-mice
#11
Cassidy Delaney, Laurie Sherlock, Susan Fisher, Joanne K Maltzahn, Clyde J Wright, Eva Nozik-Grayck
Pulmonary hypertension (PH) complicating bronchopulmonary dysplasia (BPD) worsens clinical outcomes in former preterm infants. Increased serotonin (5-hydroxytryptamine, 5-HT) signaling plays a prominent role in PH pathogenesis and progression in adults. We hypothesized that increased 5-HT signaling contributes to the pathogenesis of neonatal PH complicating BPD and neonatal lung injury. Thus, we interrogated 5-HT signaling in neonatal mice exposed to bleomycin, previously demonstrated to induce PH and alveolar simplification...
January 18, 2018: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29344413/therapeutic-potential-and-cellular-mechanisms-of-panax-notoginseng-on-prevention-of-aging-and-cell-senescence-associated-diseases
#12
REVIEW
Haiping Zhao, Ziping Han, Guangwen Li, Sijia Zhang, Yumin Luo
Owing to a dramatic increase in average life expectancy, most countries in the world are rapidly entering an aging society. Therefore, extending health span with pharmacological agents targeting aging-related pathological changes, are now in the spotlight of gerosciences. Panax notoginseng (Burk.) F. H. Chen, a species of the genus Panax, has been called the "Miracle Root for the Preservation of Life," and has long been used as a Chinese herb with magical medicinal value. Panax notoginseng has been extensively employed in China to treat microcirculatory disturbances, inflammation, trauma, internal and external bleeding due to injury, and as a tonic...
December 2017: Aging and Disease
https://www.readbyqxmd.com/read/29344293/ligand-activation-of-ppar%C3%AE-by-ligustrazine-suppresses-pericyte-functions-of-hepatic-stellate-cells-via-smrt-mediated-transrepression-of-hif-1%C3%AE
#13
Feng Zhang, Shuai Lu, Jianlin He, Huanhuan Jin, Feixia Wang, Li Wu, Jiangjuan Shao, Anping Chen, Shizhong Zheng
Rationale: Hepatic stellate cells (HSCs) are liver-specific pericytes regulating vascular remodeling during hepatic fibrosis. Here, we investigated how ligustrazine affects HSC pericyte functions. Methods: Rat HSC-T6 and human HSC-LX2 cells were cultured, and multiple molecular experiments including real-time PCR, Western blot, flow cytometry, immunofluorescence, electrophoretic mobility shift assay and co-immunoprecipitation were used to elucidate the underlying mechanisms. Molecular simulation and site-directed mutagenesis were performed to uncover the target molecule of ligustrazine...
2018: Theranostics
https://www.readbyqxmd.com/read/29343759/incorporation-of-iloprost-in-phospholipase-resistant-phospholipid-scaffold-enhances-its-barrier-protective-effects-on-pulmonary-endothelium
#14
Olga Oskolkova, Nicolene Sarich, Yufeng Tian, Grzegorz Gawlak, Fanyong Meng, Valery N Bochkov, Evgeny Berdyshev, Anna A Birukova, Konstantin G Birukov
Correction of barrier dysfunction and inflammation in acute lung injury (ALI) represents an important problem. Previous studies demonstrate barrier-protective and anti-inflammatory effects of bioactive lipid prostacyclin and its stable analog iloprost (ILO). We generated a phospholipase resistant synthetic phospholipid with iloprost attached at the sn-2 position (ILO-PC) and investigated its biological effects. In comparison to free ILO, ILO-PC caused sustained endothelial cell (EC) barrier enhancement, linked to more prolonged activation of Rap1 and Rac1 GTPases and their cytoskeletal and cell junction effectors: cortactin, PAK1, p120-catenin and VE-cadherin...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343519/uremic-solute-aryl-hydrocarbon-receptor-tissue-factor-axis-associates-with-thrombosis-after-vascular-injury-in-humans
#15
Vijaya B Kolachalama, Moshe Shashar, Faisal Alousi, Sowmya Shivanna, Keshab Rijal, Mostafa E Belghasem, Joshua Walker, Shinobu Matsuura, Gary H Chang, C Michael Gibson, Laura M Dember, Jean M Francis, Katya Ravid, Vipul C Chitalia
Individuals with CKD are particularly predisposed to thrombosis after vascular injury. Using mouse models, we recently described indoxyl sulfate, a tryptophan metabolite retained in CKD and an activator of tissue factor (TF) through aryl hydrocarbon receptor (AHR) signaling, as an inducer of thrombosis across the CKD spectrum. However, the translation of findings from animal models to humans is often challenging. Here, we investigated the uremic solute-AHR-TF thrombosis axis in two human cohorts, using a targeted metabolomics approach to probe a set of tryptophan products and high-throughput assays to measure AHR and TF activity...
January 17, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29343518/fibroblast-specific-%C3%AE-catenin-signaling-dictates-the-outcome-of-aki
#16
Dong Zhou, Haiyan Fu, Liangxiang Xiao, Hongyan Mo, Hui Zhuo, Xiaojun Tian, Lin Lin, Jianhua Xing, Youhua Liu
AKI is a devastating condition with high morbidity and mortality. The pathologic features of AKI are characterized by tubular injury, inflammation, and vascular impairment. Whether fibroblasts in the renal interstitium have a role in the pathogenesis of AKI is unknown. In this study, we investigated the role of fibroblast-specific β-catenin signaling in dictating the outcome of AKI, using conditional knockout mice in which β-catenin was specifically ablated in fibroblasts (Gli1-β-cat-/-). After ischemia-reperfusion injury (IRI), Gli1-β-cat-/- mice had lower serum creatinine levels and less morphologic injury than Gli1-β-cat+/+ littermate controls...
January 17, 2018: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/29343302/does-previous-abdominal-surgery-adversely-affect-perioperative-and-oncologic-outcomes-of-laparoscopic-radical-cystectomy
#17
Xiaosong Wei, Jinjin Lu, Khurram Mutahir Siddiqui, Fan Li, Qianyuan Zhuang, Weimin Yang, Zhiquan Hu, Zhong Chen, Xiaodong Song, Shaogang Wang, Zhangqun Ye
BACKGROUND: Laparoscopic radical cystectomy (LRC) has been shown to have less estimated blood loss (EBL), transfusion rate, narcotic analgesic requirement, earlier return of bowel function, and shorter hospital stay. The aim of this study was to investigate the feasibility, peri-operative and oncologic outcomes of laparoscopic radical cystectomy (LRC) in patients with previous abdominal surgery (PAS). METHODS: We retrospectively reviewed 243 patients undergoing open radical cystectomy (ORC) or LRC with bilateral pelvic lymph node dissection and urinary diversion or cutaneous ureterostomy at a single center from January 2010 to December 2015...
January 17, 2018: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29341889/adventitial-activation-in-the-pathogenesis-of-injury-induced-arterial-remodeling-potential-implications-in-transplant-vasculopathy
#18
REVIEW
Jianli Wang, Yuan Wang, Jingjing Wang, Xiaosun Guo, Elsa C Chan, Fan Jiang
Transplant vasculopathy is one of the major causes of chronic rejection following solid organ transplantation. The pathogenic mechanisms of transplant vasculopathy are still poorly understood. Here we summarize current evidence suggesting that activation of the tunica adventitia may be involved in the pathogenesis of transplant vasculopathy. Adventitia is an early responder to various vascular injuries and plays an integral role in eliciting vascular inflammation and remodeling. Accumulation of macrophages in the adventitia promotes the development of vascular remodeling by releasing a variety of paracrine factors that have profound impacts on vascular mural cells...
January 13, 2018: American Journal of Pathology
https://www.readbyqxmd.com/read/29340821/a-novel-and-safe-approach-middle-cranial-approach-for-laparoscopic-right-hemicolon-cancer-surgery-with-complete-mesocolic-excision
#19
Songtao Du, Bomiao Zhang, Yanlong Liu, Peng Han, Chengxin Song, Fangjie Hu, Tianyi Xia, Xiangxin Wu, Binbin Cui
BACKGROUND: Mastering right hemicolectomy techniques using laparoscopy in colorectal cancer surgery is very difficult. Although the long-term prognosis of laparoscopic right hemicolectomy (LRH) and complete mesocolic excision is unquestionable, different surgeons have their own opinions on routes of conducting LRH. OBJECTIVES: LRH surgery is very complex due to the upper abdominal anatomical structure and vascular variation. Therefore, it has been considered the most difficult of all colorectal cancer surgeries...
January 16, 2018: Surgical Endoscopy
https://www.readbyqxmd.com/read/29339754/baicalin-modulates-nf-%C3%AE%C2%BAb-and-nlrp3-inflammasome-signaling-in-porcine-aortic-vascular-endothelial-cells-infected-by-haemophilus-parasuis-causing-gl%C3%A3-sser-s-disease
#20
Shulin Fu, Huashan Liu, Lei Xu, Yinsheng Qiu, Yu Liu, Zhongyuan Wu, Chun Ye, Yongqing Hou, Chien-An Andy Hu
Haemophilus parasuis (H. parasuis) can cause vascular inflammatory injury, but the molecular basis of this effect remains unclear. In this study,we investigated the effect of the anti-inflammatory, anti-microbial and anti-oxidant agent, baicalin, on the nuclear factor (NF)-κB and NLRP3 inflammasome signaling pathway in pig primary aortic vascular endothelial cells. Activation of the NF-κB and NLRP3 inflammasome signaling pathway was induced in H. parasuis-infected cells. However, baicalin reduced the production of reactive oxygen species, apoptosis, and activation of the NF-κB and NLRP3 inflammasome signaling pathway in infected cells...
January 16, 2018: Scientific Reports
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