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The respiratory center of the brain is located in the pons and medulla and is primarily driven by elevated carbon dioxide levels in the blood (hypercapnia) with decreased oxygen levels serving as a less potent stimulus. [9] Central nervous system disorders, such as stroke and tumors, may cause hypoventilation. Drugs may decrease respiratory ...
Intracerebral B-cell lymphoma represents less than 1% of all primary malignant tumors of the central nervous system. [6] [1] [3] Infiltration of lymphoma cells into the pons and medulla is the most frequently reported cause of CNH, accounting for half of all CNH-inducing brain tumors, despite its considerable rarity. It has been suggested that ...
In severe overdose it could hospitalize the patient or cause death. Prior to the introduction of rescue inhalers in the mid-1950s this was an over-the-counter remedy for asthma attacks. Asthmador was sold in packets like cigarettes, in tins like pipe tobacco, or as an incense. The paroxysms would abate within a few minutes of inhaling the mixture.
While it is considered a relief or rescue medication, it can take a full hour to begin working. For this reason, it plays a secondary role in acute asthma treatment. Dry throat is the most common side effect. If the medication gets in contact with the eyes, it may cause blurred vision for a brief time.
A link between these types of drugs and cognitive impairment isn't a totally new discovery, but for the first time, researchers used brain imaging techniques to determine the physical changes ...
Like other β adrenergic agonists, they cause smooth muscle relaxation. β 2 adrenergic agonists' effects on smooth muscle cause dilation of bronchial passages, vasodilation in muscle and liver, relaxation of uterine muscle, and release of insulin. They are primarily used to treat asthma and other pulmonary disorders.
COPD causes airflow limitations in the lungs because of inflammation. Smoking is the main risk factor but inhalation of toxic and harmful particles and gases can also cause the disease. The symptoms are abnormal mucus production, inflation in the lungs that causes airflow limitation, abnormal gas exchange and pulmonary hypertension.
When combined with inhaled steroids, β adrenoceptor agonists can improve symptoms. [1] [2] In children this benefit is uncertain and they may be potentially harmful. [2]They should not be used without an accompanying steroid due to an increased risk of severe symptoms, including exacerbation in both children and adults. [3]