Read by QxMD icon Read

Small vascular disease

Lijiang Ma, Wendy K Chung
Group 1 pulmonary hypertension or pulmonary arterial hypertension (PAH) is a rare disease characterized by proliferation and occlusion of small pulmonary arterioles, leading to progressive elevation of pulmonary artery pressure and pulmonary vascular resistance, and right ventricular failure. Historically it has been associated with a high mortality rate, although over the last decade, treatment has improved survival. PAH includes idiopathic PAH (IPAH), heritable PAH (HPAH), and PAH associated with certain medical conditions...
October 22, 2016: Journal of Pathology
Douglas W Jones, Kirsten Dansey, Allen D Hamdan
Patients with end-stage renal disease (ESRD) who present with critical limb ischemia (CLI) have become an increasingly common and complex treatment problem for vascular surgeons. Dialysis patients have high short-term mortality rates regardless of whether revascularization is pursued. ESRD patients with CLI can be managed with: local wound care, endovascular or surgical revascularization, or amputation. Some patients may heal small foot wounds with local wound care alone, even if distal perfusion is marginal, as long as any infectious process has been controlled...
October 20, 2016: Vascular and Endovascular Surgery
Prabha H Andraweera, Gustaaf A Dekker, Shalem Leemaqz, Lesley McCowan, Claire T Roberts
OBJECTIVE: To investigate whether the FTO rs9939609 single nucleotide polymorphism (SNP), which is a risk factor for obesity and vascular diseases, is also associated with pregnancy complications including pre-eclampsia, gestational hypertension, small for gestational age pregnancy (SGA), and spontaneous preterm birth (sPTB). METHODS: A case-control study of 1,741 nulliparous Caucasian women, their partners, and infants was conducted. DNA was extracted from peripheral blood or saliva from parents and cord blood from infants and genotyped using the Sequenom MassARRAY system...
October 21, 2016: Obesity
Assila Ben Salem, Fatma Megdich, Olfa Kacem, Malek Souayeh, Faten Hachani Ben Ali, Sondes Hizem, Faouzi Janhai, Mounir Ajina, Muhammad Abu-Elmagd, Mourad Assidi, Mohammed H Al Qahtani, Touhami Mahjoub
BACKGROUND: Polycystic ovary syndrome (PCOS) is characterized by the growth of a number of small cysts on the ovaries which leads to sex hormonal imbalance. Women who are affected by this syndrome suffer from irregular menstrual cycles, decline in their fertility, excessive hair growth, obesity, acne and most importantly cardiac function problems. The vascular endothelial growth factor (VEGF) plays a pivotal role in tissue vascularization in general and in the pathogenesis of many diseases...
October 17, 2016: BMC Genomics
Satoshi Fujii, Tomonori Sugiura, Yasuaki Dohi, Nobuyuki Ohte
Atherosclerosis is one of the major causes of death. Data from animal experiments suggest that atherosclerosis involves an inflammatory process of the vascular wall under hyperlipidemia. Atherothrombosis can become a serious complication of atherosclerosis leading to acute cardiovascular events such as myocardial infarction and stroke. Clinical applications to use this knowledge remain scarce. The plasma levels of vascular endothelium-enriched microRNA (miRNAs) in patients with atherosclerotic vascular disease could serve as a disease marker...
2016: Thrombosis Journal
Dongkyu Kim, Sook Hee Ku, Hyosuk Kim, Ji Hoon Jeong, Minhyung Lee, Ick Chan Kwon, Donghoon Choi, Sun Hwa Kim
Gene therapy is aimed at selectively knocking up or knocking down the target genes involved in the development of diseases. In many human diseases, dysregulation of disease-associated genes is occurred concurrently: some genes are abnormally turned up and some are turned down. In the field of non-viral gene therapy, plasmid DNA (pDNA) and small interfering RNA (siRNA) are suggested as representative regulation tools for activating and silencing the expression of genes of interest, representatively. Herein, we simultaneously loaded both siRNA (Src homology region 2 domain-containing tyrosine phosphatase-1 siRNA, siSHP-1) for anti-apoptosis and pDNA (hypoxia-inducible vascular endothelial growth factor expression vector, pHI-VEGF) for angiogenesis in a single polymeric nanocarrier and used to synergistically attenuate ischemia-reperfusion (IR)-induced myocardial infarction, which is mainly caused by dysregulating of cardiac apoptosis and angiogenesis...
October 17, 2016: Journal of Controlled Release: Official Journal of the Controlled Release Society
Wilson Kc Leung, L Gao, Parco M Siu, Christopher Wk Lai
An explosion in global epidemic of type 2 diabetes mellitus poses major rise in cases with vascular endothelial dysfunction ranging from micro- (retinopathy, nephropathy and neuropathy) to macro-vascular (atherosclerosis and cardiomyopathy) conditions. Functional destruction of endothelium is regarded as an early event that lays the groundwork for the development of renal microangiopathy and subsequent clinical manifestation of nephropathic symptoms. Recent research has shed some light on the molecular mechanisms of type 2 diabetes-associated comorbidity of endothelial dysfunction and nephropathy...
October 17, 2016: Life Sciences
Teresa Liu-Ambrose, John R Best, Jennifer C Davis, Janice J Eng, Philip E Lee, Claudia Jacova, Lara A Boyd, Penelope M Brasher, Michelle Munkacsy, Winnie Cheung, Ging-Yuek R Hsiung
OBJECTIVE: To assess the efficacy of a progressive aerobic exercise training program on cognitive and everyday function among adults with mild subcortical ischemic vascular cognitive impairment (SIVCI). METHODS: This was a proof-of-concept single-blind randomized controlled trial comparing a 6-month, thrice-weekly, progressive aerobic exercise training program (AT) with usual care plus education on cognitive and everyday function with a follow-up assessment 6 months after the formal cessation of aerobic exercise training...
October 19, 2016: Neurology
Sharon L I Wong, Maria B Sukkar
Secreted protein acidic and rich in cysteine (SPARC) is a matricellular protein which regulates interactions between cells and their surrounding extracellular matrix (ECM), and thus governs fundamental cellular functions such as cell adhesion, proliferation and differentiation. SPARC also regulates the expression and activity of numerous growth factors and matrix metalloproteinases essential for ECM degradation and turnover. Studies in SPARC-null mice have revealed a critical role for SPARC in tissue development, injury and repair, and in the regulation of the immune response...
October 19, 2016: British Journal of Pharmacology
Jing Yu, Yue Zhang, Lai-Han Leung, Lian Liu, Fan Yang, Xiaojun Yao
Monoclonal antibodies and small molecule tyrosine kinase inhibitors (TKIs) directed against the vascular endothelial growth factor (VEGF) or its receptors have been investigated in several studies for the treatment of advanced gastric cancer (GC). In the present study, we aimed to evaluate the efficacy and safety of angiogenesis inhibitors in advanced GC. We searched published randomized controlled trials (RCTs) comparing angiogenesis inhibitors with non-angiogenesis inhibitors for the treatment of GC. MEDLINE, EMBASE, and the Cochrane Controlled Trials Register were searched...
October 18, 2016: Journal of Hematology & Oncology
Thomas Unger
The renin-angiotensin system (RAS) plays an important role in the initiation and progression of tissue injuries in the cardiovascular and nervous systems. The detrimental actions of the AT1 receptor (AT1R) in hypertension and vascular injury, myocardial infarction and brain ischemia are well established. In the past twenty-five years, protective actions of the RAS, not only in the cardiovascular- but also in the nervous system, have been demonstrated. The so-called protective arm of the RAS includes AT2- and Mas receptors (AT2R and MasR) and is characterized by effects different from and often opposing those of the AT1R...
September 2016: Journal of Hypertension
Kimika Arakawa, Ai Ibaraki, Yuki Kawamoto, Minako Inoue, Emi Oishi, Mitsuhiro Tominaga, Takuya Tsuchihashi
OBJECTIVE: To investigate the average and variability in urinary salt excretion in treated hypertensive outpatients during several years (median follow-up is 2 years). DESIGN AND METHOD: In our previous research, the subjects were 200 hypertensive patients who underwent at least three measurement of USALT from Sep 2012 to Mar 2013. We extended the follow-up period until Aug 2015 and the subjects were 68 hypertensive patients who were measured USALT 10 times over (65...
September 2016: Journal of Hypertension
Pierre Paradis, Sofiane Ouerd, Noureddine Idris-Khodja, Michelle Trindade, Suellen C Coelho, Karin A Jandeleit-Dahm, Ernesto L Schiffrin
OBJECTIVE: The prognosis of type-1 diabetes remains poor and is primarily related to the increased risk of vascular complications. Overproduction of reactive oxygen species by NADPH oxidase (NOX) is believed to play an important role in diabetes-related vascular injury. NOX1 may play a role in the macrovascular disease, whereas NOX4 may have protective actions. Nevertheless, their role in diabetic microangiopathy is less well understood. We hypothesized that deletion of Nox1 would prevent diabetes-induced endothelial dysfunction and vascular remodeling of small arteries whereas Nox4 would exaggerate vascular injury...
September 2016: Journal of Hypertension
Francesco Cappuccio
The evidence. Salt (i.e. sodium chloride) is causally related to blood pressure (BP). The higher the salt intake, the higher the BP, an effect seen since birth. A small and sustained reduction in salt intake causes a fall in BP. The evidence from controlled studies, small and large, short and long, all agree on the following: (1) salt intake is one of the major determinants of BP in populations and individuals; (2) a reduction in salt intake causes a dose-dependent reduction in BP - the lower the salt the lower the BP; (3) the effect is seen in both sexes, in people of all ages and ethnic groups, and with all starting BPs...
September 2016: Journal of Hypertension
Kazuyuki Shimada
Stroke is known to frequently recur in patients with a history of cerebrovascular disease, and the control of hypertension is extremely important for the treatment of those patients. The robust relationship between the recurrent cerebrovascular disease and blood pressure control has been demonstrated in large-scale clinical studies. The antihypertensive drug therapy significantly reduces the recurrence rate of all types of cerebrovascular disease, incidences of myocardial infarction and all vascular events...
September 2016: Journal of Hypertension
Maddison Turner, Larissa Reid, Mercedes Munkonda, Dylan Burger
OBJECTIVE: Diabetes and hypertension are cognate diseases that often coexist, potentiating one's risk for cardiovascular complications. Both diseases are typified by the development of endothelial dysfunction and are accompanied by increased circulating endothelial microparticles (eMPs). Microparticles are small membrane-derived vesicles that are secreted ubiquitously following cell stress. We have previously shown that eMPs are sensitive markers of vascular injury in hypertension and identified eMP-mediated signaling pathways that lead to endothelial injury...
September 2016: Journal of Hypertension
Rhian M Touyz
Pathophysiological mechanisms contributing to hypertension include injury to small arteries, characterised by endothelial dysfunction, vascular remodeling, fibrosis and inflammation, (so called hypertensive vascular phenotype). These changes are initially adaptive but in the long term become maladaptive leading to vascular damage and loss of function, particularly important in small resistance arteries, critically involved in the regulation of peripheral vascular resistance and consequently in blood pressure control...
September 2016: Journal of Hypertension
Stephen Harrap
Genetic discovery in blood pressure is generally referenced in relation to protein-coding genes, despite the fact that genes less than 2% of the genome. Recent exploration of the DNA sequences between genes, once called "junk" DNA, has revealed a wealth of transcripts for RNA species that do not encode protein. These non-coding RNAs (ncRNAs) have emerged as dynamic managers of the business of the genome, able to coordinate the expression of genes in time and space to achieve the complexities of normal development and growth...
September 2016: Journal of Hypertension
Solomon Kadiri
Hypertension prevalence rates in most urbanized areas of Africa range from 20-30%, with a recent systematic review reporting 16.2% for sub-Saharan Africa. These rates are lower than those in the West but the age standardized rates are higher than in other regions of the world. The attendant morbidity and mortality are disproportionately high. For example, failure of nocturnal dipping and microalbuminuria, predictive of vascular disease, occur relatively early in the course of hypertension and predispose to early vascular disease...
September 2016: Journal of Hypertension
Yuandong Li, Woo June Choi, Wan Qin, Utku Baran, Lauren M Habenicht, Ruikang K Wang
BACKGROUND: Arteriogenesis describes the active growth of the pre-existing collateral arterioles, which is a crucial tissue-saving process in occlusive vascular diseases. NEW METHOD: We propose to use optical coherence tomography (OCT)-based microangiography (OMAG) to monitor arteriogenesis following artery transection in mouse ear and focal stroke in mouse brain. RESULTS: Our longitudinal mouse ear study shows that the growth phase of arteriogenesis, indicated by changes in collateral vessel diameter and velocity, occurs between 12-24hours after vessel occlusion...
October 14, 2016: Journal of Neuroscience Methods
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"