Catecholamines
Mostrando 1-12 de 546 artigos, teses e dissertações.
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1. Acute left heart failure with pulmonary edema during resection of pediatric neuroblastoma: case report
Abstract Resection of an unknown neck mass in a 6-year-old child triggered acute left-sided heart failure and pulmonary edema. The lesion was confirmed as neuroblastoma by postoperative tissue examination. Such tumors regularly synthesize and secrete catecholamines, warranting caution in advance of surgical manipulation.
Brazilian Journal of Anesthesiology. Publicado em: 2022
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2. Focus on adrenal and related causes of hypertension in childhood and adolescence: Rare or rarely recognized?
ABSTRACT High blood pressure (BP) is not restricted to adults; children and adolescents may also be affected, albeit less frequently. Aside from unfavorable environmental factors, such as obesity and sedentary life leading to early-onset essential hypertension (HT), several secondary causes must be investigated in the occasional hypertensive child/adolescent
Archives of Endocrinology and Metabolism. Publicado em: 2022
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3. Simultaneous Quantification of Plasma Catecholamines and Metanephrines by LC-MS/MS
The quantification of the low levels of catecholamines and metanephrines in biological fluids is important for clinical screening of pheochromocytoma/paraganglioma and diagnosis of overtraining syndrome in athletes. We introduce a novel, accurate and sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for simultaneous quantification of
J. Braz. Chem. Soc.. Publicado em: 2020-07
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4. Fontes, formação, reatividade e determinação de quinonas na atmosfera
Quinones are a group of semi-volatile organic substances, ubiquitous in nature, belonging to the class of oxygenated polycyclic aromatic hydrocarbons (Oxygenated PAH). These compounds are formed in biogenic processes, through the oxidative metabolism of endogenous compounds, such as catecholamines, estrogen hormones and xenobiotics, as well as directly emitt
Quím. Nova. Publicado em: 2016-05
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5. Simultaneous Determination of Catecholamines and Metanephrines in Urine by Liquid Chromatography Electrospray Ionization Tandem Mass Spectrometry: Successful Clinical Application
Determination of urinary catecholamines and metanephrines is important for diagnosis of pheochromocytoma. Liquid chromatography tandem mass spectrometry (LC-MS/MS) method has been developed for the determination of catecholamines and metanephrines in human urine using deuterated internal standards (IS). In this method, 1000 µL of urine samples were treat
J. Braz. Chem. Soc.. Publicado em: 2015-08
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6. Effects of catecholamines on volemic replacement with saline solution and the impact on heart rate variability in rabbits subjected to hemorrhage. A study by spectral analysis
PURPOSE: To verify the effects of different catecholamines on volemic expansion and on the autonomic nervous system in rabbits that were subjected to hemorrhage.METHODS: Twenty four rabbits subjected to hemorrhage (with a 25% loss of blood volume) and were randomly divided into four experimental groups: 1) HEMO Group underwent replacement with their own bloo
Acta Cir. Bras.. Publicado em: 2014-11
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7. Effects of stress hormones on the production of volatile sulfur compounds by periodontopathogenic bacteria
Little is known about the effects of stress hormones on the etiologic agents of halitosis. Thus, the aim of this study was to evaluate in vitro the effects of adrenaline (ADR), noradrenaline (NA) and cortisol (CORT) on bacteria that produce volatile sulfur compounds (VSC), the major gases responsible for bad breath. Cultures of Fusobacterium nucleatum (Fn),
Braz. oral res.. Publicado em: 11/06/2014
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8. The genus Crataegus: chemical and pharmacological perspectives
Traditional drugs have become a subject of world importance, with both medicinal and economical implications. A regular and widespread use of herbs throughout the world has increased serious concerns over their quality, safety and efficacy. Thus, a proper scientific evidence or assessment has become the criteria for acceptance of traditional health claims. P
Rev. bras. farmacogn.. Publicado em: 16/08/2012
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9. Metformin, but not glimepiride, improves carotid artery diameter and blood flow in patients with type 2 diabetes mellitus
OBJECTIVE: To compare the effects of glimepiride and metformin on vascular reactivity, hemostatic factors and glucose and lipid profiles in patients with type 2 diabetes. METHODS: A prospective study was performed in 16 uncontrolled patients with diabetes previously treated with dietary intervention. The participants were randomized into metformin or glimepi
Clinics. Publicado em: 2012-07
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10. Head and neck paragangliomas: clinical and molecular genetic classification
Head and neck paragangliomas are tumors arising from specialized neural crest cells. Prominent locations are the carotid body along with the vagal, jugular, and tympanic glomus. Head and neck paragangliomas are slowly growing tumors, with some carotid body tumors being reported to exist for many years as a painless lateral mass on the neck. Symptoms depend o
Clinics. Publicado em: 2012
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11. Mapeamento dos sítios catecolaminérgicos que aferentam o núcleo pré-mamilar dorsal. / Catecholaminergic imputs to the dorsal premammillary nucleus.
O núcleo pré-mamilar dorsal (PMd), de crucial importância para expressão do comportamento de defesa exibido por roedores durante o confronto com predador natural, odor ou contexto associado, representa o sítio hipotalâmico com maior aumento no número de células imunorreativas a proteína Fos após o confronto predatório. Estudos mostram que a media�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/04/2011
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12. Estudo dos efeitos da exposição materna à nicotina na lactação sobre a função da medula adrenal e dos adipócitos de ratos machos e fêmeas / Programming of the adrenal function and leptin production by nicotine exposure during lactation: gender differences in rats
Alterações nutricionais, hormonais e ambientais nos períodos críticos do desenvolvimento como a gestação e/ou lactação podem influenciar a estrutura e a fisiologia de órgãos e tecidos, predispondo ao aparecimento de doenças na vida adulta. Esse fenômeno é conhecido como programação metabólica. O fumo materno na gestação/lactação tem sido
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/02/2011