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lung hypertension

Berardo Sarubbi, Gaetano Rea, Giuseppe Santoro, Enrico Melillo, Giancarlo Scognamiglio, Maria Giovannna Russo
One of the major complications of radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF) is pulmonary vein stenosis (PVS). The natural history of PVS, especially when it involves more than one vein, leads to severe and irreversible pulmonary hypertension with end-stage right heart failure that can require, in extreme cases, even heart-lung transplantation. We report the case of a young patient who underwent RFCA for a single lasting episode of AF and developed PVS years later. He was treated with ballon venoplasty followed by stent implantation in left pulmonary vein because of PVS relief...
March 9, 2018: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
Mingjie Zhang, Zhiyu Feng, Rui Huang, Chongrui Sun, Zhuoming Xu
BACKGROUND Establishing a shunt-induced pulmonary arterial hypertension (PAH) model in mice would be of great scientific value, but no such models have been reported to date. Here, we established a shunt-associated PAH in mice to investigate the characteristics of pulmonary vascular remodeling, which provides a new platform for the in-depth study of PAH associated with congenital heart disease (CHD). MATERIAL AND METHODS Eighty mice were randomly divided into the heavy shunt group (n=32), the small shunt group (n=32), the sham operation group (n=8), and the control group (n=8)...
March 19, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Naoki Masaki, Yuriko Saiki, Masato Endo, Kay Maeda, Osamu Adachi, Masatoshi Akiyama, Shunsuke Kawamoto, Yoshikatsu Saiki
BACKGROUND: Pulmonary hypertension (PH) is more progressive in trisomy 21 patients. However, pulmonary arteriopathic lesions in these patients have not been fully characterized histopathologically.Methods and Results:A retrospective review of a lung biopsy registry identified 282 patients: 188 patients with trisomy 21 (Group D) and 94 without (Group N). The mean age at lung biopsy was 3 and 7 months (P<0.0001). Pulmonary arterial pressure (PAP) and pulmonary vascular resistance were similar between the 2 groups...
March 16, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
Siqi Feng, Jingwei Zhang, Ying Wang, Runbin Sun, Dong Feng, Ying Peng, Na Yang, Yue Zhang, Haoxue Gao, Huilin Gu, Guangji Wang, Jiye Aa, Fang Zhou
Apatinib, a highly selective small-molecule inhibitor of vascular endothelial growth factor receptor-2 (VEGFR-2), has attracted many attentions due to its anticancer activity in various malignancies containing non-small-cell lung cancer (NSCLC). Our previous preclinical study confirmed the enhanced anti-tumor efficacy of combined treatment between apatinib and docetaxel for NSCLC. However, the effects of docetaxel on pharmacokinetics and tissue distribution of apatinib are not clear. In present study, a reliable HPLC-MS/MS method was established for determination of apatinib...
March 10, 2018: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Aiko Ogawa, Yukari Takahashi, Hiromi Matsubara
BACKGROUND: Pulmonary veno-occlusive disease (PVOD) and pulmonary capillary hemangiomatosis (PCH) are rare causes of pulmonary hypertension. Although diagnosis is based on pathological findings, an early diagnosis is crucial because of poor prognosis compared to other types of pulmonary hypertension. Furthermore, vasodilators may cause fatal pulmonary edema in patients with PVOD/PCH. This study aimed to identify specific characteristics for patients with PVOD/PCH to clinically diagnose PVOD/PCH...
March 13, 2018: Journal of Cardiology
Rasa Tamosiuniene, Olga Manouvakhova, Paul Mesange, Toshie Saito, Jin Qian, Mrinmoy Sanyal, Yu-Chun Lin, Linh P Nguyen, Amir Luria, Allen B Tu, Joshua M Sante, Marlene Rabinovitch, Desmond J Fitzgerald, Brian B Graham, Aida Habtezion, Norbert F Voelkel, Laure Aurelian, Mark R Nicolls
<u>Rationale:</u> Pulmonary arterial hypertension (PH) is a life-threatening condition associated with immune dysregulation and abnormal regulatory T cell (Treg) activity, but it is currently unknown whether and how abnormal Treg function differentially affects males and females. <u>Objective:</u> To evaluate whether and how Treg-deficiency differentially affects male and female rats in experimental PH. <u>Methods and Results:</u> Male and female athymic rnu/rnu rats, lacking Tregs, were treated with the vascular endothelial growth factor receptor-2 (VEGFR2) inhibitor SU5416 or chronic hypoxia and evaluated for PH; some animals underwent Treg immune reconstitution (IR) before SU5416 administration...
March 15, 2018: Circulation Research
Alice Huertas, Christophe Guignabert
The European Respiratory Society (ERS) Research Seminar entitled " Pulmonary Vascular Endothelium: Orchestra Conductor in Respiratory Diseases - Highlights from Basic Research to Therapy " brought together international experts of dysfunctional pulmonary endothelium, from basic science to translational medicine, to discuss several important aspects in acute and chronic lung diseases. This review will briefly sum up the different topics of discussion of this meeting held in Paris (France) on October 27th and 28th, 2016...
March 15, 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
Jihyun An, Jong Woo Kim, Ju Hyun Shim, Seungbong Han, Chang Sik Yu, Jaewon Choe, Danbi Lee, Kang Mo Kim, Young-Suk Lim, Young-Hwa Chung, Yung Sang Lee, Dong Jin Suh, Jin Hyoung Kim, Han Chu Lee
BACKGROUND: Prior epidemiological evidences suggest that hepatitis B virus (HBV) infection is linked to cancers other than hepatocellular carcinoma. This prospective hospital registry-based case-control study aimed to investigate the sero-epidemiological association between chronic HBV infection and various types of cancer. METHODS: 95,034 patients with first-diagnosed non-hepatocellular malignancy in a tertiary hospital between 2007 and 2014; and 118,891 non-cancer individuals as controls from a health promotion center were included...
2018: PloS One
Johannes Krämer, Felix Kreuzer, Michael Kaestner, Peter Bride, Fabian von Scheidt, Jannos Siaplaouras, Heiner Latus, Dietmar Schranz, Christian Apitz
Right ventricular (RV) hypertrophy is regarded as the adaptation on chronic RV pressure load in pulmonary hypertension. As the RV Sokolow-Lyon index (RVSLI) is an electrocardiographic marker of RV hypertrophy, we hypothesized that RVSLI might be able to reflect RV pressure load. Therefore, the purpose of this study was to characterize the diagnostic impact of the RVSLI in children with idiopathic pulmonary arterial hypertension (IPAH) in order to assess disease severity and to evaluate its value for the prediction of worse outcome...
March 14, 2018: Pediatric Cardiology
Yufeng Du, Xiaoyan Hao, Xuejun Liu
The present study aimed to investigate the expression of long non-coding RNA (lncRNA) cyclin dependent kinase inhibitor-2B-antisense RNA 1 CDKN2B-AS1 in patients with peripheral blood of idiopathic pulmonary fibrosis (IPF). A total of 24 patients with IPF and 24 healthy controls were included in the study, four patients with IPF and four healthy controls were selected randomly to extract RNA. There were no other diseases such as hypertension and diabetes in the two groups. RNA from peripheral blood was extracted by high-throughput sequencing and bioinformatics analysis was performed...
April 2018: Oncology Letters
Claudio Caviezel, Carlson Aruldas, Daniel Franzen, Silvia Ulrich, Ilhan Inci, Didier Schneiter, Walter Weder, Isabelle Opitz
OBJECTIVES: Pulmonary hypertension (PH) is considered a contraindication for lung volume reduction surgery (LVRS). Because, it has been reported that endobronchial lung volume reduction may have a beneficial effect without increased mortality in patients with emphysema and PH, we evaluated its effect on PH in patients undergoing LVRS. METHODS: From January 2014 until June 2016, 119 LVRSs were performed at Zurich University Hospital. PH was a contraindication for patients with homogeneous emphysema but was acceptable for those with heterogeneous emphysema...
March 12, 2018: European Journal of Cardio-thoracic Surgery
Ulrich Mayr, Eugen Karsten, Tobias Lahmer, Sebastian Rasch, Philipp Thies, Benedikt Henschel, Gerrit Fischer, Roland M Schmid, Wolfgang Huber
INTRODUCTION: Appropriate mechanical ventilation and prevention of alveolar collaps is mainly dependent on transpulmonary pressure TPP. TPP is assessed by measurement of esophageal pressure EP, largely influenced by pleural and intraabdominal pressure IAP. Consecutively, TPP-guided ventilation might be particularly useful in patients with high IAP. This study investigates the impact of large volume paracentesis LVP on TPP, EP, IAP as well as on hemodynamic and respiratory function in patients with liver cirrhosis and tense ascites...
2018: PloS One
Laurie G Sherlock, Ashley Trumpie, Laura Hernandez-Lagunas, Sarah McKenna, Susan Fisher, Russell Bowler, Clyde J Wright, Cassidy Delaney, Eva Nozik-Grayck
BACKGROUND: A naturally occurring single nucleotide polymorphism (SNP), (R213 G), in extracellular superoxide dismutase (SOD3), decreases SOD3 matrix binding affinity. Humans and mature mice expressing the R213 G SNP exhibit increased cardiovascular disease but decreased lung disease. The impact of this SNP on the neonatal lung at baseline or with injury is unknown. METHODS: Wild type and homozygous R213 G mice were injected with intraperitoneal bleomycin or phosphate buffered saline (PBS) three times weekly for three weeks and tissue harvested at 22 days of life...
March 14, 2018: Antioxidants (Basel, Switzerland)
Liya Pi, Chunhua Fu, Yuanquing Lu, Junmei Zhou, Marda Jorgensen, Vinayak Shenoy, Kenneth E Lipson, Edward W Scott, Andrew J Bryant
Chronic hypoxia frequently complicates the care of patients with interstitial lung disease, contributing to the development of pulmonary hypertension (PH), and premature death. Connective tissue growth factor (CTGF), a matricellular protein of the Cyr61/CTGF/Nov (CCN) family, is known to exacerbate vascular remodeling within the lung. We have previously demonstrated that vascular endothelial-cell specific down-regulation of CTGF is associated with protection against the development of PH associated with hypoxia, though the mechanism for this effect is unknown...
2018: Frontiers in Physiology
Maria Kerti, Zsuzsanna Balogh, Krisztina Kelemen, Janos T Varga
Rationale: The relationship of functional parameters such as lung mechanics, chest kinematics, metabolism and peripheral and respiratory muscle function with the level of exercise tolerance remains a controversial subject. While it has been previously shown that pulmonary rehabilitation is capable of improving exercise tolerance in patients afflicted by COPD, as expressed by values of 6-minute walking test (6MWT), the degree of contribution to this change by each of the aforementioned parameters remains unclear...
2018: International Journal of Chronic Obstructive Pulmonary Disease
Soisungwan Satarug
Cadmium (Cd) is a food-chain contaminant that has high rates of soil-to-plant transference. This phenomenon makes dietary Cd intake unavoidable. Although long-term Cd intake impacts many organ systems, the kidney has long been considered to be a critical target of its toxicity. This review addresses how measurements of Cd intake levels and its effects on kidneys have traditionally been made. These measurements underpin the derivation of our current toxicity threshold limit and tolerable intake levels for Cd...
March 10, 2018: Toxics
Samantha Sabo, Catalina Denman Champion, Melanie L Bell, Elsa Cornejo Vucovich, Maia Ingram, Celina Valenica, Maria Del Carmen Castro Vasquez, Eduardo Gonzalez-Fagoaga, Jill Geurnsey de Zapien, Cecilia B Rosales
INTRODUCTION: Northern Mexico has among the highest rates of cardiovascular disease (CVD) and diabetes in the world. This research addresses core gaps in implementation science to develop, test and scale-up CVD risk-reduction interventions in diabetics through a national primary care health system. METHODS AND ANALYSIS: The Meta Salud Diabetes (MSD) research project is a parallel two-arm cluster-randomised clinical behavioural trial based in 22 (n=22) health centres in Sonora, Mexico...
March 12, 2018: BMJ Open
Marian Urban, Karen Booth, John O'Sullivan, John Dark
We present a case of young female patient with end stage lung failure due to pulmonary arterial hypertension who was failing maximal medical therapy and was listed for a single sequential lung transplantation. The challenge of the case was a concomitant presence of a large atrial septal defect (ASD). The novelty of our approach was a device closure of ASD before performing a transplant with the use of intraoperative venoarterial extracorporeal membrane oxygenation (ECMO).
March 9, 2018: Annals of Thoracic Surgery
Georgia Brown, Tilman Humpl
PURPOSE OF REVIEW: Pulmonary vascular disease (PVD) complicates the course of many cardiovascular, pulmonary and other systemic diseases in children. The physiological sequelae (pulmonary hypertension and elevated pulmonary vascular resistance) can overwhelm the right ventricle and lead to circulatory collapse. Despite the common end-point, the preceding pathophysiology is complex and variable and requires a tailored approach to diagnosis and management. In this article, we will review the most recent evidence and explore an approach to current controversies in the diagnosis and management of common or challenging patient subgroups...
March 9, 2018: Current Opinion in Pediatrics
Shun Lu, Jianhua Chang, Xiaoqing Liu, Jianhua Shi, You Lu, Wei Li, Jin-Ji Yang, Jianying Zhou, Jie Wang, Tongtong An, Lei Yang, Zhe Liu, Xiangdong Zhou, Mo Chen, Ye Hua, Weiguo Su
Purpose Patients with advanced non‒small-cell lung cancer (NSCLC) who fail two lines of chemotherapy have unmet medical needs. The kinase inhibitor fruquintinib selectively targets vascular endothelial growth factor receptors and, hence, tumor angiogenesis and lymphogenesis. This randomized, double-blind, placebo-controlled, multicenter phase II trial evaluated the efficacy and safety of fruquintinib in patients with advanced nonsquamous NSCLC who experienced disease progression after second-line chemotherapy...
March 12, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
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