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Systemic hypertension

Christiana Leimena, Hongyu Qiu
Hypertension is a complex, multifactorial disease that involves the coexistence of multiple risk factors, environmental factors and physiological systems. The complexities extend to the treatment and management of hypertension, which are still the pursuit of many researchers. In the last two decades, various genes have emerged as possible biomarkers and have become the target for investigations of specialized drug design based on its risk factors and the primary cause. Owing to the growing technology of microarrays and next-generation sequencing, the non-protein-coding RNAs (ncRNAs) have increasingly gained attention, and their status of redundancy has flipped to importance in normal cellular processes, as well as in disease progression...
March 21, 2018: International Journal of Molecular Sciences
Hao Chan, Hsuan-Shun Huang, Der-Shan Sun, Chung-Jen Lee, Te-Sheng Lien, Hsin-Hou Chang
Mechanisms underlying cold-induced immunosuppression remain unclear. Here we found that cold exposure leads to transient receptor potential melastatin 8 (TRPM8)-dependent, renin-angiotensin-aldosterone system (RAAS)-mediated hypertension, which subsequently induces small molecule and fluid extravasation, increases plasma Ig levels, and elicits immunosuppression. An effect is similar to the clinically-used immunosuppressive treatments of intravenous immunoglobulin (IVIg) against various inflammatory diseases, such as immune thrombocytopenia (ITP)...
February 27, 2018: Oncotarget
Cristian R Astorga, Alejandro González-Candia, Alejandro A Candia, Esteban G Figueroa, Daniel Cañas, Germán Ebensperger, Roberto V Reyes, Aníbal J Llanos, Emilio A Herrera
Background: Chronic hypoxia and oxidative stress during gestation lead to pulmonary hypertension of the neonate (PHN), a condition characterized by abnormal pulmonary arterial reactivity and remodeling. Melatonin has strong antioxidant properties and improves pulmonary vascular function. Here, we aimed to study the effects of melatonin on the function and structure of pulmonary arteries from PHN lambs. Methods: Twelve lambs ( Ovis aries ) gestated and born at highlands (3,600 m) were instrumented with systemic and pulmonary catheters...
2018: Frontiers in Physiology
Eric Wallace, Zachary Stewart, David Theriot, William Shaffer, Shane Guillory, Michael Hanemann, Raman Danrad, Bradley Spieler
Background: Plasmacytomas are monoclonal proliferations of plasma cells that typically affect the intramedullary axial skeleton. Imaging findings of an extramedullary plasmacytoma on radiograph and computed tomography can be nonspecific and can resemble other entities such as lymphoma, metastases, chondrosarcomas, or giant cell tumors. Case Report: A 60-year-old female with a medical history of partial complex seizures, hypertension, diabetes, glaucoma, and hyperlipidemia presented with complaints of superficial abdominal pain associated with erythema and swelling for 3 weeks...
2018: Ochsner Journal
Johannes Jägers, Stephan Brauckmann, Michael Kirsch, Katharina Effenberger-Neidnicht
Background: Systemic inflammation alters energy metabolism. A sufficient glucose level, however, is most important for erythrocytes, since erythrocytes rely on glucose as sole source of energy. Damage to erythrocytes leads to hemolysis. Both disorders of glucose metabolism and hemolysis are associated with an increased risk of death. The objective of the study was to investigate the impact of intravenous glucose on hemolysis during systemic inflammation. Materials and methods: Systemic inflammation was accomplished in male Wistar rats by continuous lipopolysaccharide (LPS) infusion (1 mg LPS/kg and h, 300 min)...
2018: Journal of Inflammation Research
Cristhiaan D Ochoa, Ru Feng Wu, Lance S Terada
The endoplasmic reticulum (ER) produces the vast majority of all proteins secreted into the extracellular space, including hormones and cytokines, as well as cell surface receptors and other proteins which interact with the environment. Accordingly, this organelle controls essentially all vital links to a cell's external milieu, responding to systemic metabolic, inflammatory, endocrine, and mechanical stimuli. The central role the ER plays in meeting protein synthetic and quality control requirements in the face of such demands is matched by an extensive and versatile ER stress response signaling network...
March 17, 2018: Molecular Aspects of Medicine
Renata Świątkowska-Stodulska, Piotr Kmieć, Katarzyna Stefańska, Krzysztof Sworczak
Hypertension occurs in 7-10% of pregnant women. Despite the continuous development of medicine, it is still an important risk factor for perinatal mortality of both mothers and fetuses. Pregnant women with hypertension are at greater risk of complications such as: placental abruption, cerebral and cardiac incidents, multiorgan failure, and disseminated intravascular coagulation. The aim of this review was to discuss multilevel disorders of the renin-angiotensin-aldosterone system in the etiopathogenesis of pregnancy-induced hypertension...
March 20, 2018: Experimental and Clinical Endocrinology & Diabetes
Katarzyna Załuska, Maria W Kondrat-Wróbel, Jarogniew J Łuszczki
BACKGROUND: The coexistence of seizures and arterial hypertension requires an adequate and efficacious treatment involving both protection from seizures and reduction of high arterial blood pressure. Accumulating evidence indicates that some diuretic drugs (with a well-established position in the treatment of arterial hypertension) also possess anticonvulsant properties in various experimental models of epilepsy. OBJECTIVES: The aim of this study was to assess the anticonvulsant potency of 6 commonly used diuretic drugs (i...
March 20, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Jing Du, Ying Wang, Yan-Chun Li, Tong-Tong Wang, Yong-Lie Zhou, Zhen-Hua Ying
Systemic lupus erythematosus (SLE) is an autoimmune disease that affects many organs, but multisystem dysfunction is rare. Here, we report a case of a 29-year-old woman who was initially diagnosed with SLE complications including lupus nephritis, lupus encephalopathy, renal hypertension, thrombocytopenia, anaemia and hyperkalaemia. She recovered following treatment with high dose methylprednisolone, intravenous immunoglobulin (IVIG) and continuous renal replacement therapy (CRRT). However, a few days after hospital discharge, she developed gastrointestinal bleeding...
January 1, 2018: Journal of International Medical Research
Se Hee Min, Se Hong Kim, In Kyung Jeong, Ho Chan Cho, Jin Ok Jeong, Ju Hee Lee, Hyun Jae Kang, Hyo Soo Kim, Kyong Soo Park, Soo Lim
BACKGROUND AND OBJECTIVES: A relationship between renin-angiotensin system (RAS) components and metabolic syndrome (MetS) has been suggested, but not elucidated clearly. We examined the levels of RAS components in patients with and without MetS and their association with MetS in Korean population. METHODS: This study was approved by the review boards of the participating institutions and endorsed by the Korean Society of Lipid and Atherosclerosis. We screened 892 Koreans aged ≥20 years who underwent evaluation of hypertension, diabetes, or dyslipidemia at 6 tertiary hospitals in 2015-2016...
March 2018: Korean Circulation Journal
David Roh, Chung-Huan Sun, J Michael Schmidt, Edip Gurol, Santosh Murthy, Soojin Park, Sachin Agarwal, E Sander Connolly, Jan Claassen
BACKGROUND/PURPOSE: Primary intracerebral hemorrhage (ICH) studies often use hematoma location rather than ICH etiologies when assessing outcome. Characterizing ICH using hematoma location is effective/reproducible, but may miss heterogeneity among these ICH locations, particularly lobar ICH where competing primary ICH etiologies are possible. We subsequently investigated baseline characteristics/outcome differences of spontaneous, primary ICH by their etiologies: cerebral amyloid angiopathy (CAA) and hypertension...
March 19, 2018: Neurocritical Care
Hironori Nakagami, Ryuichi Morishita
PURPOSE OF REVIEW: Vaccines are commonly used as preventive methods, primarily against infectious diseases. The goal of our study is to develop the therapeutic vaccine for hypertension. RECENT FINDINGS: We and others recently reported that an angiotensin II (AngII) vaccine for hypertension successfully attenuated elevated blood pressures in an animal model without any immunogenic side effects. In this system, an immunogenic molecule (i.e., KLH) with adjuvants provides an antigen that supports the activation of helper T cells...
March 19, 2018: Current Hypertension Reports
Alberto Avolio, Mi Ok Kim, Audrey Adji, Sumudu Gangoda, Bhargava Avadhanam, Isabella Tan, Mark Butlin
PURPOSE OF REVIEW: Concepts of pulsatile arterial haemodynamics, including relationships between oscillatory blood pressure and flow in systemic arteries, arterial stiffness and wave propagation phenomena have provided basic understanding of underlying haemodynamic mechanisms associated with elevated arterial blood pressure as a major factor of cardiovascular risk, particularly the deleterious effects of isolated systolic hypertension in the elderly. This topical review assesses the effects of pulsatility of blood pressure and flow in the systemic arteries on the brain...
March 19, 2018: Current Hypertension Reports
A Wufuer, P Mijiti, R Abudusalamu, H Dengfeng, C Jian, M Jianhua, Z Xiaoning
BACKGROUND: This study aimed to evaluate the effect of different blood pressure (BP) parameters on the collateral circulation in a retrospective cohort of patients with acute ischemic stroke and ipsilateral internal carotid artery (ICA) occlusion. METHODS: The degree of intracranial collaterals was graded according to the American Society of Interventional and Therapeutic Neuroradiology/Society of Interventional Radiology (ASITN/SIR) Collateral Flow Grading System...
March 20, 2018: Herz
Farzad Masoudkabir, Ali Vasheghani-Farahani, Elham Hakki, Hamidreza Poorhosseini, Saeed Sadeghian, Seyed Hesameddin Abbasi, Shahram Bahmanyar, Seyed Ebrahim Kassaian
A major diagnostic challenge for cardiologists is to distinguish cardiac syndrome X (CSX) from obstructive coronary artery disease in women with typical angina and a positive exercise tolerance test (ETT). We performed this study to develop a scoring system that more accurately predicts CSX in this patient population. Data on 976 women with typical angina and a positive ETT who underwent coronary angiography at our center were randomly divided into derivation and validation datasets. We developed a backward stepwise logistic regression model that predicted the presence of CSX, and a scoring system was derived from it...
February 2018: Texas Heart Institute Journal
Mitsuru Ohishi
Elevated blood pressure is closely related to increased circulatory fluid volume and peripheral vascular resistance. Patients with diabetes mellitus experience increased peripheral artery resistance caused by vascular remodeling and increased body fluid volume associated with insulin resistance-induced hyperinsulinemia and hyperglycemia. Both of these mechanisms elevate systemic blood pressure. Thus, fully understanding the pathophysiology of hypertension in diabetes mellitus requires knowing the natural history of type 2 diabetes...
March 19, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
Ali Yousif, Rajesh Samannan, Mazen Abu-Fadel
Acute renal artery embolism (RAE) is a rare condition associated with significant morbidity and mortality. The treatment strategy for RAE includes anticoagulation with or without thrombolysis or surgical or endovascular embolectomy. We describe here a case presentation of acute RAE secondary to atrial fibrillation treated successfully with Penumbra Indigo Aspiration System, a novel device in peripheral endovascular interventions. Our patient had ongoing symptoms and acute renal failure on presentation with contraindication to thrombolysis given hypertensive emergency...
January 1, 2018: Vascular and Endovascular Surgery
Koon Teo, Salim Yusuf
The cardiovascular polypill or fixed dose combination pill, consisting of three, four or more drugs in a single tablet (or capsule), has been proposed as an effective and convenient therapy in both secondary and primary prevention of cardiovascular disease (CVD). Each of the drugs in the combination has a documented ability to prevent CVD events. The combined effect has been estimated to reduce risk by 75% to 80%.Since the concept was introduced 15 years ago, several polypills are available and their effects on risk factors evaluated...
March 15, 2018: American Journal of Hypertension
Fred Stephen Sarfo, Linda M Mobula, Gilbert Burnham, Daniel Ansong, Jacob Plange-Rhule, Osei Sarfo-Kantanka, David Ofori-Adjei
BACKGROUND: The burden of uncontrolled hypertension in Low-and-Middle Income Countries (LMICs) is high, with an increased risk of cardiovascular diseases and chronic renal failure in these settings. OBJECTIVE: To assess the factors associated with uncontrolled blood pressure control in a cross-section of Ghanaian hypertensive subjects involved in an on-going multicenter epidemiological study aimed at improving access to hypertension treatment. METHODS: A cross-sectional study involving 2,870 participants with hypertension with or without diabetes who were enrolled at 5 hospitals in Ghana (2 tertiary, 2 district and 1 rural hospital)...
2018: PloS One
Yonatan Edel, Rivka Mamet
The porphyrias are a group of rare metabolic disorders, inherited or acquired, along the heme biosynthetic pathway, which could manifest with neurovisceral and/or cutaneous symptoms, depending on the defective enzyme. Neurovisceral porphyrias are characterized by acute attacks, in which excessive heme production is induced following exposure to a trigger. An acute attack usually presents with severe abdominal pain, vomiting, and tachycardia. Other symptoms which could appear include hypertension, hyponatremia, peripheral neuropathy, and mild mental symptoms...
March 15, 2018: Rambam Maimonides Medical Journal
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