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https://www.readbyqxmd.com/read/29034190/antiasthmatic-related-properties-of-abrus-precatorius-leaves-on-various-models
#1
Dnyaneshwar J Taur, Rajendra N Patil, Ravindra Y Patil
OBJECTIVE: Asthma is a multifaceted inflammatory disorder which results into narrowing of airway with broncho-constriction and spasm. As the complex pathophysilogy of asthma, various animal models are generally used to investigate the immunological and physiological pathogenesis of disease. Abrus precatorius Linn (Fabacease) is a climbing shrub. The leaves and roots are sweet in taste and traditionally used for the treatment of asthma, bronchititis, and inflammation. A. precatorius possesses different pharmacological activities...
October 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29033571/bronchial-thermoplasty-and-the-role-of-airway-smooth-muscle-are-we-on-the-right-direction
#2
REVIEW
Francesco Menzella, Mirco Lusuardi, Carla Galeone, Nicola Facciolongo
Asthma is characterized by inflammation of the airways that includes eosinophils, basal membrane thickening, epithelial sloughing, vascular changes, smooth muscle hypertrophy and hyperplasia, and mucous gland hyperplasia. Recently, there have been studies on the role of hypersensitivity and inflammation in asthma, but the role of bronchial smooth muscle remains unclear. Bronchial thermoplasty is an endoscopic procedure that is approved by the US Food and Drug Administration (FDA) for the treatment of severe refractory asthma, based on the local delivery of radio frequency at 65°C to the airways, with the aim of controlling bronchospasm through a reduction of airway smooth muscle (ASM)...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29026569/sudden-maternal-hypoxemia-during-elective-cesarean-section-in-a-woman-with-placenta-previa
#3
Takeshi Umazume, Satoshi Hayasaka, Fumi Kato, Satoshi Ishikawa, Mamoru Morikawa, Hisanori Minakami
There have been no reports regarding imaging-documented bronchospasm in patients with amniotic fluid embolism (AFE). In a woman with scheduled cesarean section for placenta previa, transient bronchospasm and pulmonary hypertension were documented explaining a sudden drop in SpO2. Mild AFE was the most likely diagnosis in this patient.
October 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28984485/exercise-induced-bronchospasm-in-a-hot-and-dry-region-study-of-asthmatic-rhinitistic-and-asymptomatic-adolescents
#4
Marco Aurélio de Valois Correia Junior, Emília Chagas Costa, Silvia Wanick Sarinho, José Ângelo Rizzo, Emanuel Sávio Cavalcanti Sarinho
BACKGROUND: Exercise-induced bronchospasm (EIB) is the bronchial narrowing that occurs after intense exercise in a significant number of asthmatics and in some non-asthmatics. This study aims to evaluate the occurrence of EIB in adolescents with asthma, rhinitis and respiratory asymptomatics in a hot and dry climate. RESEARCH DESIGN AND METHODS: This is a cross-sectional study based on an epidemiological study that evaluated the prevalence of asthma in schoolchildren in a semi-arid zone of Brazil...
October 10, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28979541/management-of-severe-traumatic-brain-injury-and-acute-respiratory-distress-syndrome-using-pumped-extracorporeal-carbon-dioxide-removal-device
#5
Tim Martindale, Phillip McGlone, Robert Chambers, Jon Fennell
The effects of a high carbon dioxide on cerebral perfusion and intracranial pressure are well known. We report the case of a man who presented after with a severe traumatic brain injury including intracranial and extradural haemorrhage. Neuroprotective ventilation was impossible without supramaximal tidal volumes due to a combination of chest trauma and severe bronchospasm. A pump driven Novalung iLA active® system was inserted to achieve both ARDSnet ventilation and a lowering of intracranial pressure. To our knowledge, this is the first time this system has been used to this effect...
February 2017: J Intensive Care Soc
https://www.readbyqxmd.com/read/28974069/premedication-with-salbutamol-prior-to-surgery-does-not-decrease-the-risk-of-perioperative-respiratory-adverse-events-in-school-aged-children
#6
A Ramgolam, G L Hall, D Sommerfield, L Slevin, T F E Drake-Brockman, G Zhang, B S von Ungern-Sternberg
Background: Perioperative respiratory adverse events (PRAE) remain the leading cause of morbidity and mortality in the paediatric population. This double-blinded randomized control trial investigated whether inhaled salbutamol premedication decreased the occurrence of PRAE in children identified as being at high risk of PRAE. Methods: Children with at least two parentally reported risk factors for PRAE undergoing elective surgery were eligible for recruitment. They were randomized to receive either salbutamol (200 µg) or placebo prior to their surgery and PRAE (bronchospasm, laryngospasm, airway obstruction, desaturation, coughing and stridor) were recorded...
July 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28936072/alleviating-stress-response-to-tracheal-extubation-in-neurosurgical-patients-a-comparative-study-of-two-infusion-doses-of-dexmedetomidine
#7
Ankur Luthra, Hemanshu Prabhakar, Girija Prasad Rath
BACKGROUND: Tracheal extubation is almost always associated with increase in sympathoadrenal activity may result in hypertension, tachycardia, and arrhythmias. Attempts have been made to oppose the pressor response by the use of various drugs. Dexmedetomidine decreases norepinephrine which reduces the blood pressure and the heart rate (HR). We hypothesize that the infusion of dexmedetomidine may produce more stable hemodynamics during extubation as compared to boluses. MATERIALS AND METHODS: Ninety adult patients aged 18-65 years, the American Society of Anesthesiologists Grade I-II undergoing intracranial surgeries for various neurologic problem at All India Institute of Medical Sciences were enrolled in this randomized controlled trial...
August 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28925861/perioperative-pulmonary-medication-management
#8
Johnathan Ross Renew, Stephen Aniskevich
BACKGROUND: Pulmonary conditions such as asthma and chronic obstructive pulmonary disease (COPD) are common conditions that warrant special consideration in the perioperative period. When these patients undergo surgical interventions, they have risk of complications such as bronchospasm, hypoxia, and even postoperative respiratory failure that warrants unplanned intensive care unit admission. Thus, clinicians must be familiar with pulmonary medication regimens that are critical for maintaining stable homeostasis of these chronic conditions...
September 18, 2017: Current Clinical Pharmacology
https://www.readbyqxmd.com/read/28899928/treatment-of-hypertension-by-increasing-impaired-endothelial-trpv4-kca2-3-interaction
#9
Dongxu He, Qiongxi Pan, Zhen Chen, Chunyuan Sun, Peng Zhang, Aiqin Mao, Yaodan Zhu, Hongjuan Li, Chunxiao Lu, Mingxu Xie, Yin Zhou, Daoming Shen, Chunlei Tang, Zhenyu Yang, Jian Jin, Xiaoqiang Yao, Bernd Nilius, Xin Ma
The currently available antihypertensive agents have undesirable adverse effects due to systemically altering target activity including receptors, channels, and enzymes. These effects, such as loss of potassium ions induced by diuretics, bronchospasm by beta-blockers, constipation by Ca(2+) channel blockers, and dry cough by ACEI, lead to non-compliance with therapies (Moser, 1990). Here, based on new hypertension mechanisms, we explored a new antihypertensive approach. We report that transient receptor potential vanilloid 4 (TRPV4) interacts with Ca(2+)-activated potassium channel 3 (KCa2...
September 12, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28882740/effect-of-sleep-deprivation-after-a-night-shift-duty-on-simulated-crisis-management-by-residents-in-anaesthesia-a-randomised-crossover-study
#10
Ségolène Arzalier-Daret, Clément Buléon, Marie-Laure Bocca, Pierre Denise, Jean-Louis Gérard, Jean-Luc Hanouz
BACKGROUND: Sleep deprivation has been associated with an increased incidence of medical errors and can jeopardise patients' safety during medical crisis management. The aim of the study was to assess the effect of sleep deprivation on the management of simulated anaesthesia crisis by residents in anaesthesiology. METHODS: A randomised, comparative, monocentric crossover study involving 48 residents in anaesthesia was performed on a high fidelity patient simulator...
September 4, 2017: Anaesthesia, Critical Care & Pain Medicine
https://www.readbyqxmd.com/read/28875973/-butamirate-citrate-in-control-of-cough-in-respiratory-tract-inflammation
#11
REVIEW
Tadeusz Płusa
Cough is the reflex defense response of the respiratory tract to the present secretions in the throat, trachea and bronchi, and ongoing inflammation in the mucous membranes of the upper and lower respiratory tract. From a practical point of view, cough is dry (unproductive) and productive cough with expulsion of significant amounts of secretion. Drugs used to treat cough differ in both mechanism of action and pharmacokinetic activity. Butamirate citrate belongs to a new class of cough suppressants acting centrally through the receptors in the brainstem...
August 21, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28840614/pharmacological-evaluation-of-gut-modulatory-and-bronchodilator-activities-of-achyranthes-aspera-linn
#12
Hafiz Muhammad Abdur Rahman, Samra Bashir, Safur Rehman Mandukhail, Sohaib Huda, Anwarul Hassan Gilani
Achyranthes aspera L. is traditionally used to relieve constipation, diarrhea, and asthma. Its crude extract (Aa.Cr) was evaluated through in vivo and ex vivo experiments to rationalize these medicinal uses of A. aspera and to provide their scientific basis. Aa.Cr, at 3 and 10 mg/kg, increased fecal output, similar to castor oil, whereas at 30, 100, 300, and 700 mg/kg, it protected against castor oil-induced diarrhea in mice when administered orally. Aa.Cr caused spasmogenic effect on rabbit jejunum and guinea pig ileum preparations, which was partially inhibited by atropine while completely blocked by cyproheptadine preincubation...
August 25, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28817840/nuciferine-relaxes-tracheal-rings-via-the-blockade-of-vdlcc-and-nscc-channels
#13
Xiao Yang, Meng-Fei Yu, Jun Lei, Yong-Bo Peng, Ping Zhao, Lu Xue, Weiwei Chen, Li-Qun Ma, Qing-Hua Liu, Jinhua Shen
This study aimed to elucidate the mechanisms of nuciferine (a main aporphine alkaloid of lotus leaf extract), which can induce relaxation in contracted tracheal rings. Under Ca(2+)-free and 2 mM Ca(2+) conditions, we found that nuciferine had no effect on the resting muscle tone of tracheal rings. In contrast, nuciferine relaxed high K(+)-contracted mouse tracheal rings in a dose-dependent manner and inhibited both Ca(2+) influx and voltage-dependent L-type Ca(2+) channel currents induced by high K(+). Similarly, nuciferine also inhibited acetylcholine-induced contractions in mouse tracheal rings in a dose-dependent manner...
August 17, 2017: Planta Medica
https://www.readbyqxmd.com/read/28811222/antitussive-antispasmodic-bronchodilating-and-cardiac-inotropic-effects-of-the-essential-oil-from-blepharocalyx-salicifolius-leaves
#14
Jehison Jiménez Hernández, María Inés Ragone, Patricia Bonazzola, Arnaldo L Bandoni, Alicia E Consolini
ETHNOPHARMACOLOGY RELEVANCE: Blepharocalyx salicifolius (Kunth) O. Berg (Myrtaceae) is a tree native to Argentina and Uruguay that grows and is cultivated along the riverside of the Rio de la Plata. The leaves of this plant species, locally known as "anacahuita" are used in South America to prepare infusions for the empiric treatment of cough and bronchospasm, as well as diarrhoea and other intestinal disorders. Although previous phytochemical studies have been performed with the essential oil extracted from Blepharocalyx salicifolius, pharmacological evidence supporting its traditional use is still lacking...
August 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28803162/-impact-of-air-pollution-in-paediatric-consultations-in-primary-health-care-ecological-study
#15
Raquel Martín Martín, Marciano Sánchez Bayle
OBJECTIVE: To study the correlation between the levels of environmental pollutants and the number of paediatric consultations related to respiratory disease in Primary Health Care. PATIENTS AND METHODS: An ecological study is performed, in which the dependent variable analysed was the number of paediatric consultations in an urban Primary Health Care centre in Madrid over a 3 year period (2013-2015), and specifically the consultations related to bronchiolitis, recurrent bronchospasm, and upper respiratory diseases...
August 9, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28775042/the-emerging-role-of-transient-receptor-potential-channels-in-chronic-lung-disease
#16
Maria G Belvisi, Mark A Birrell
Chronic lung diseases such as asthma, chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis are a major and increasing global health burden with a high unmet need. Drug discovery efforts in this area have been largely disappointing and so new therapeutic targets are needed. Transient receptor potential ion channels are emerging as possible therapeutic targets, given their widespread expression in the lung, their role in the modulation of inflammatory and structural changes and in the production of respiratory symptoms, such as bronchospasm and cough, seen in chronic lung disease...
August 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28762366/prevalence-and-factors-associated-with-exercise-induced-bronchospasm-among-rural-school-children-in-ilesa-nigeria
#17
Bankole Peter Kuti, Demilade Kehinde Kuti, Kehinde Oluyori Omole, Lasisi Oluwafemi Mohammed, Busayo Gideon Ologun, Bolanle Idowu Oso
BACKGROUND: Exercise-induced bronchospasm (EIB) assessed using changes in peak expiratory flow rates (PEFRs) to free range exercise is a relatively cheap way of screening for asthma in resource-poor centres where children with asthma are often undiagnosed and poorly managed. This study sets out to determine the prevalence and factors associated with EIB among rural schoolchildren in Ilesa, Nigeria. SUBJECTS AND METHODS: Children aged 8-16 years from two middle schools in rural Ilesa were selected by multistage sampling...
April 2017: Nigerian Postgraduate Medical Journal
https://www.readbyqxmd.com/read/28762062/sequential-rituximab-and-omalizumab-for-the-treatment-of-eosinophilic-granulomatosis-with-polyangiitis-churg-strauss-syndrome
#18
REVIEW
David Aguirre-Valencia, Iván Posso-Osorio, Juan-Carlos Bravo, Fabio Bonilla-Abadía, Gabriel J Tobón, Carlos A Cañas
Eosinophilic granulomatosis with polyangiitis (EGPA), formerly known as Churg-Strauss syndrome (CSS), is a small vessel vasculitis associated with eosinophilia and asthma. Clinical manifestations commonly seen in patients presenting with EGPA range from upper airway and lung involvement to neurological, cardiac, cutaneous, and renal manifestations. Treatment for severe presentations includes steroids, cyclophosphamide, plasmapheresis, and recently, rituximab. Rituximab is associated with a good response in the treatment of vasculitis, but a variable response for the control of allergic symptoms...
July 31, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28751262/do-individuals-with-asthma-experience-airway-hyper-responsiveness-after-exposure-to-nitrogen-dioxide
#19
Julie E Goodman, Erin M Kennedy, Mara Seeley
The current 100 ppb short-term National Ambient Air Quality Standard for NO2, and EPA's determination of a causal association for respiratory effects, are based in part on controlled human exposure studies evaluating airway hyper-responsiveness (AHR). A meta-analysis by Goodman et al. (2009) found increased AHR at 100 ppb NO2 but no clear concentration-response relationship up to 600 ppb, and an overall lack of an AHR effect for studies involving exercise or exposure to allergens. Several factors have been suggested to explain why effects on AHR are observed while people are at rest, but not during exercise or after exposure to allergens...
July 25, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28748745/histamine-poisoning-from-insect-consumption-an-outbreak-investigation-from-thailand
#20
Summon Chomchai, Chulathida Chomchai
BACKGROUND: Insect consumption is a common practice in the Asian culture and all over the world. We are reporting an outbreak investigation of histamine poisoning from ingestion of fried insects. METHODS: On 24 July 2014, a group of students at a seminar presented to Angthong Provincial Hospital, Thailand, with pruritic rash after ingesting snacks consisting of fried insects from a vendor. We initiated an outbreak investigation with retrospective cohort design and collected samples of remaining foods for analyses...
July 27, 2017: Clinical Toxicology
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