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Hydralazine

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https://www.readbyqxmd.com/read/28738383/hydralazine-is-a-suitable-mimetic-agent-of-hypoxia-to-study-the-impact-of-hypoxic-stress-on-in-vitro-blood-brain-barrier-model
#1
Morgane Chatard, Clémentine Puech, Nathalie Perek, Frédéric Roche
BACKGROUND/AIMS: Understanding cellular mechanisms induced by hypoxia is fundamental to reduce blood-brain barrier (BBB) disruption. Nevertheless, the investigation of hypoxia on cellular pathways is complex with true hypoxia because HIF-1α has a short lifetime and rapidly reverts back to a normoxic state. To overcome this difficulty, mimetic agents of the hypoxia pathway have been developed, including the gold standard CoCl2. In this study, we proposed to compare CoCl2 and hydralazine in order to determine a suitable mimetic agent of hypoxia for the study on the BBB...
July 24, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28711448/the-paradox-in-demonstrating-hydralazine-nitrate-efficacy
#2
EDITORIAL
Jay N Cohn
No abstract text is available yet for this article.
July 7, 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28711446/clinical-effectiveness-of-hydralazine-isosorbide-dinitrate-in-african-american-patients-with-heart%C3%A2-failure
#3
Boback Ziaeian, Gregg C Fonarow, Paul A Heidenreich
OBJECTIVES: This study sought to evaluate the effectiveness of hydralazine-isosorbide dinitrate (H-ISDN) in African Americans with heart failure (HF) with reduced ejection fraction (HFrEF). BACKGROUND: Among African-American patients with HFrEF, H-ISDN was found to improve quality of life and lower HF-related hospitalization and mortality rates in the A-HEFT (African-American Heart Failure Trial). Few studies have evaluated the effectiveness of this therapy in clinical practice...
July 12, 2017: JACC. Heart Failure
https://www.readbyqxmd.com/read/28707284/fixed-dose-versus-off-label-combination-of-isosorbide-dinitrate-plus-hydralazine-hydrochloride-retrospective-propensity-matched-analysis-in-black-medicare-patients-with-heart-failure
#4
Elizabeth Ofili, Inder Anand, Richard Allen Williams, Ola Akinboboye, Liou Xu, Gary Puckrein
INTRODUCTION: Based upon the findings of the African-American Heart Failure Trial, the US Food and Drug Administration approved the fixed-dose combination of isosorbide dinitrate (ISDN) and hydralazine hydrochloride (HYD) (FDC-ISDN/HYD) as a new drug for treatment of heart failure (HF) in self-identified African Americans. According to the FDA, FDC-ISDN/HYD has no therapeutic equivalent. However, off-label combinations of the separate generic drugs ISDN and HYD (OLC-ISDN+HYD) or isosorbide mononitrate (ISMN) and HYD (OLC-ISMN+HYD) are routinely substituted without any supporting outcome data...
July 13, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28697227/postoperative-pyoderma-gangrenosum-following-video-assisted-thoracic-surgery
#5
Stanislav N Tolkachjov, Philip Y Sun, Alina G Bridges
<p>Pyoderma gangrenosum (PG) is a neutrophilic, ulcerative dermatosis that can develop at sites of cutaneous trauma, including surgical incisions, a phenomenon known as pathergy. The characteristic lesion is a painful, rapidly expanding ulceration with a violaceous undermined border.<sup>1</sup> A biopsy taken from the expanding violaceous border shows predominantly neutrophilic dermal inflammation with neutrophilic abscess formation.</p> <p>The etiology of PG appears to be variable among patients, as about a half of the reported cases are associated with systemic disease such as inflammatory bowel disease, rheumatoid arthritis, or myeloproliferative disorders, while the other half seem to be idiopathic...
July 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28689331/pathophysiology-and-current-clinical-management-of-preeclampsia
#6
REVIEW
Lorena M Amaral, Kedra Wallace, Michelle Owens, Babbette LaMarca
Preeclampsia is characterized by blood pressure greater than 140/90 mmHg in the second half of pregnancy. This disease is a major contributor to preterm and low birth weight babies. The early delivery of the baby, which becomes necessary for maintaining maternal well-being, makes preeclampsia the leading cause for preterm labor and infant mortality and morbidity. Currently, there is no cure for this pregnancy disorder. The current clinical management of PE is hydralazine with labetalol and magnesium sulfate to slow disease progression and prevent maternal seizure, and hopefully prolong the pregnancy...
August 2017: Current Hypertension Reports
https://www.readbyqxmd.com/read/28653770/studies-on-n-acetyltransferase-nat2-genotype-relationships-in-emiratis-confirmation-of-the-existence-of-phenotype-variation-among-slow-acetylators
#7
Mohammad M Al-Ahmad, Naheed Amir, Subramanian Dhanasekaran, Anne John, Yousef M Abdulrazzaq, Bassam R Ali, Salim Bastaki
BACKGROUND AND PURPOSE: Individuals with slow N-acetylation phenotype often experience toxicity from drugs such as isoniazid, sulfonamides, procainamide, and hydralazine, whereas rapid acetylators may not respond to these medications. The highly polymorphic N-acetyltransferase 2 enzyme encoded by the NAT2 gene is one of the N-acetylators in humans with a clear impact on the metabolism of a significant number of important drugs. However, there are limited studies on N-acetylation phenotypes and NAT2 genotypes among Emiratis, and thus this study was carried out to fill this gap...
June 27, 2017: Annals of Human Genetics
https://www.readbyqxmd.com/read/28632810/hydralazine-associated-cutaneous-casculitis-presenting-with-aerodigestive-tract-involvement
#8
Laura E Levin, Cynthia Magro, James Horowitz, Joanna Harp
Hydralazine-induced small vessel vasculitis is a rare entity with a limited number of cases reported in the dermatologic literature. A characteristic pattern of acral pseudoembolic vesiculopustules with necrosis and ulceration has been suggested along with involvement of the aerodigestive tract, indicating mucosal involvement is an important feature of this disease. We report the case of a patient with hydralazine-induced vasculitis who exemplified this characteristic presentation associated with severe involvement of the aerodigestive tract and gastrointestinal tract bleeding...
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28602366/treatment-of-heart-failure-with-abnormal-left-ventricular-systolic-function-in-older-adults
#9
REVIEW
Wilbert S Aronow
Heart failure (HF) with abnormal left ventricular (LV) ejection fraction should be identified and treated. Treat hypertension with diuretics, angiotensin-converting enzyme (ACE) inhibitors, and β-blockers. Treat myocardial ischemia with nitrates and β-blockers. Treat volume overload and HF with diuretics. Treat HF with ACE inhibitors and β-blockers. Sacubitril/valsartan may be used instead of an ACE inhibitor or ARB in chronic symptomatic HF and abnormal LV ejection fraction. Add isosorbide dinitrate/hydralazine in African Americans with class II to IV HF treated with diuretics, ACE inhibitors, and β-blockers...
July 2017: Heart Failure Clinics
https://www.readbyqxmd.com/read/28598552/acrolein-scavenger-hydralazine-prevents-streptozotocin-induced-painful-diabetic-neuropathy-and-spinal-neuroinflammation-in-rats
#10
Lu Yao, Yun-Tao Wu, Guo-Xiang Tian, Chang-Quan Xia, Feng Zhang, Wei Zhang
Diabetes-induced neuropathic pain (DNP) substantially influences people's life qualities. Hyperglycemia-induced excess free radicals have been considered as the most critical mechanisms underlying DNP. As an unsaturated aldehyde and a reactive product of lipid peroxidation, acrolein plays critical roles in diabetic nephropathy and inflammatory pain. We sought to determine whether acrolein is involved in DNP in the present study. Diabetes was induced by a single intraperitoneal (i.p.) injection of 60 mg/kg streptozotocin (STZ)...
June 9, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/28588970/modifying-the-interagency-emergency-health-kit-to-include-treatment-for-non-communicable-diseases-in-natural-disasters-and-complex-emergencies
#11
Marcello Tonelli, Natasha Wiebe, Brian Nadler, Ara Darzi, Shahnawaz Rasheed
The Interagency Emergency Health Kit (IEHK) provides a standard package of medicines and simple medical devices for aid agencies to use in emergencies such as disasters and armed conflicts. Despite the increasing burden of non-communicable diseases (NCDs) in such settings, the IEHK includes few drugs and devices for management of NCDs. Using published data to model the population burden of acute and chronic presentations of NCDs in emergency-prone regions, we estimated the quantity of medications and devices that should be included in the IEHK...
November 2016: BMJ Global Health
https://www.readbyqxmd.com/read/28528297/biogenic-aldehydes-as-therapeutic-targets-for-cardiovascular-disease
#12
REVIEW
Margaret-Ann M Nelson, Shahid P Baba, Ethan J Andersonc
Aldehydes are continuously formed in biological systems through enzyme-dependent and spontaneous oxidation of lipids, glucose, and primary amines. These highly reactive, biogenic electrophiles can become toxic via covalent modification of proteins, lipids and DNA. Thus, agents that scavenge aldehydes through conjugation have therapeutic value for a number of major cardiovascular diseases. Several commonly-prescribed drugs (e.g., hydralazine) have been shown to have potent aldehyde-conjugating properties which may contribute to their beneficial effects...
May 18, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/28523058/comparison-of-hydralazine-and-labetalol-to-lower-severe-hypertension-in-pregnancy
#13
Ayesha Khan, Sajida Hafeez, Farah Deeba Nasrullah
OBJECTIVE: To compare the intravenous Labetalol versus intravenous hydralazine in patients having severe Pregnancy induced hypertension (PIH) and pre eclampsia (PE) in pregnancy. METHODS: Seventy eight women admitted in the Department of Gynecology and Obstetrics, Civil Hospital Karachi, having severe PIH/PE and fulfilling the inclusion criteria were included in the study. Random selection of patients was performed using sealed opaqe envelop for administration of either intravenous noted (IV) Labetalol or Hydrallazine...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28508974/pauci-immune-crescentic-glomerulonephritis-associated-with-use-of-trimethoprim-sulfamethoxazole
#14
Shruti S Hegde, Vanesa Bijol, Bertrand L Jaber
Drug-induced pauci-immune crescentic glomerulonephritis has been described with several agents, including propylthiouracil, minocycline, D-penicillamine, and hydralazine. We present the case of a 60-year-old man who presented with rapidly progressive glomerulonephritis in the setting of recent use of trimethoprim-sulfamethoxazole complicated by the development of the Stevens-Johnson syndrome, and was found to have biopsy-proven pauci-immune crescentic glomerulonephritis and undetectable anti-neutrophilic cytoplasmic antibodies...
November 2016: CEN Case Reports
https://www.readbyqxmd.com/read/28481921/low-sodium-diet-induces-atherogenesis-regardless-of-lowering-blood-pressure-in-hypertensive-hyperlipidemic-mice
#15
Fernanda B Fusco, Diego J Gomes, Kely C S Bispo, Veronica P Toledo, Denise F Barbeiro, Vera L Capelozzi, Luzia N S Furukawa, Ana P P Velosa, Walcy R Teodoro, Joel C Heimann, Eder C R Quintao, Marisa Passarelli, Edna R Nakandakare, Sergio Catanozi
This study investigated the influence of sodium restriction and antihypertensive drugs on atherogenesis utilizing hypertensive (H) low-density lipoprotein-receptor knockout mice treated or not with losartan (Los) or hydralazine (Hyd) and fed low-sodium (LS) or normal-sodium (NS) chow. Despite reducing the blood pressure (BP) of H-LS mice, the LS diet caused arterial lipid infiltration due to increased plasma total cholesterol (TC) and triglycerides (TG). Los and Hyd reduced the BP of H-LS mice, and Los effectively prevented arterial injury, likely by reducing plasma TG and nonesterified fatty acids...
2017: PloS One
https://www.readbyqxmd.com/read/28479957/4-hydroxynonenal-contributes-to-angiogenesis-through-a-redox-dependent-sphingolipid-pathway-prevention-by-hydralazine-derivatives
#16
Caroline Camaré, Corinne Vanucci-Bacqué, Nathalie Augé, Mélanie Pucelle, Corinne Bernis, Audrey Swiader, Michel Baltas, Florence Bedos-Belval, Robert Salvayre, Anne Nègre-Salvayre
The neovascularization of atherosclerotic lesions is involved in plaque development and may contribute to intraplaque hemorrhage and plaque fragilization and rupture. Among the various proangiogenic agents involved in the neovascularization process, proatherogenic oxidized LDLs (oxLDLs) contribute to the formation of tubes via the generation of sphingosine 1-phosphate (S1P), a major mitogenic and proangiogenic sphingolipid mediator. In this study, we investigated whether 4-hydroxynonenal (4-HNE), an aldehydic lipid oxidation product abundantly present in oxLDLs, contributes to their proangiogenic properties...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28426127/postpartum-hypertension-etiology-diagnosis-and-management
#17
Kathryn J Sharma, Sarah J Kilpatrick
Importance: Postpartum hypertension complicates approximately 2% of pregnancies and, similar to antepartum severe hypertension, can have devastating consequences including maternal death. Objective: This review aims to increase the knowledge and skills of women's health care providers in understanding, diagnosing, and managing hypertension in the postpartum period. Results: Hypertension complicating pregnancy, including postpartum, is defined as systolic blood pressure 140 mm Hg or greater and/or diastolic blood pressure 90 mm Hg or greater on 2 or more occasions at least 4 hours apart...
April 2017: Obstetrical & Gynecological Survey
https://www.readbyqxmd.com/read/28419822/inhibitory-effects-of-losartan-and-azelnidipine-on-augmentation-of-blood-pressure-variability-induced-by-angiotensin-ii-in-rats
#18
Danfeng Jiang, Yukiko Kawagoe, Kenji Kuwasako, Kazuo Kitamura, Johji Kato
Increased blood pressure variability has been shown to be associated with cardiovascular morbidity and mortality. Recently we reported that continuous infusion of angiotensin II not only elevated blood pressure level, but also increased blood pressure variability in a manner assumed to be independent of blood pressure elevation in rats. In the present study, the effects of the angiotensin type I receptor blocker losartan and the calcium channel blocker azelnidipine on angiotensin II-induced blood pressure variability were examined and compared with that of the vasodilator hydralazine in rats...
April 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28410843/left-ventricular-hypertrophy-does-not-prevent-heart-failure-in-experimental-hypertension
#19
H Hernán Gómez Llambí, G Cao, M Donato, D Suárez, G Ottaviano, A Müller, B Buchholz, R Gelpi, M Otero-Losada, J Milei
BACKGROUND: Left ventricular hypertrophy (LVH) secondary to hypertension has been accepted to prevent heart failure (HF) while paradoxically increasing cardiovascular morbi-mortality. OBJECTIVES: To evaluate whether antihypertensive treatment inhibits LVH, restores beta-adrenergic response and affects myocardial oxidative metabolism. METHODS: Ninety spontaneously hypertensive rats (SHR) were distributed into groups and treated (mg/kg, p.o...
July 1, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28358601/pharmacogenetics-in-the-treatment-of-pre-eclampsia-current-findings-challenges-and-perspectives
#20
Marcelo R Luizon, Ana Ct Palei, Ricardo C Cavalli, Valeria C Sandrim
Pre-eclampsia (PE) is defined as pregnancy-induced hypertension and proteinuria, and is a major cause of maternal and perinatal morbidity and mortality. A large subgroup of pregnant women with PE is nonresponsive to antihypertensive drugs, including methyldopa, nifedipine and hydralazine. Pharmacogenomics may help to guide the individualized therapy for this nonresponsive subgroup. However, just a few pharmacogenetic studies examined the effects of genetic polymorphisms on response to antihypertensive drugs in PE, and the criteria of responsiveness used to define responsive or nonresponsive subgroups to antihypertensive therapy should be replicated by others...
March 30, 2017: Pharmacogenomics
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