Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027497 (nausea)
 23,468 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We describe a 47 year old woman with a 30-year history of generalized myasthenia gravis whose condition had been stable and well controlled on a combination of pyridostigmine and ephedrine until she presented. At this time she gave a 2 month history of weakness, nausea, vomiting and more recently intermittent confusion. Investigations confirmed both primary hypothyroidism and primary adrenal failure (Schmidt syndrome). The autoimmune aetiology of these three conditions was confirmed by positive acetylcholine receptor, adrenal and thyroid microsomal antibodies.
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PMID:Myasthenia gravis and Schmidt syndrome. 325 19

The infusion of high-dose (275 mg/kg body weight) immune globulin intravenous (IGIV) after 466 plasma exchanges in 64 patients with autoimmune disease was studied. Side effects occurred during 15% of IGIV infusions. For the most part they were transient and mild, and could be controlled by slowing the infusion rate. Two percent of infusions had to be terminated because of more persistent or severe side effects. Chills were the most common side effect, followed by nausea, flushing, anxiety, and nausea. Serum IgG levels were immediately restored into the normal range by IGIV infusions, and they were much more effective in restoring IgG levels after plasma exchange than intramuscular injection of 9.9 g of immune serum globulin (ISG). Up to 15 weekly high-dose IGIV infusions were well tolerated without unusual side effects. These patients did not have any major bacterial infections, but were not protected from developing Herpes zoster at the dosages used. In patients with myasthenia gravis, a short term impact of a single IGIV infusion on titers of antibody to acetylcholine receptor could not be demonstrated. This study showed IGIV to be a safe and effective preparation for the replacement of normal IgG removed during plasma exchange.
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PMID:Immune globulin intravenous replacement after plasma exchange. 668 80

Riluzole is a neuroprotective drug that modulates glutamergic transmission but also blocks the inactivated state of voltage-gated neuronal sodium channels at very low concentrations (about 0.1 microM). After nausea, the most common adverse effect of riluzole is asthenia, which could be due to a block of muscle sodium channels or acetylcholine receptor channels. Using the patch-clamp technique, we applied riluzole on recombinant voltage-gated skeletal muscle sodium and adult nicotinic acetylcholine receptor channels expressed in a mammalian cell line (HEK 293). Riluzole blocked the inactivated state of voltage-gated skeletal muscle sodium channels, shifting the midpoint of the steady-state inactivation curve to more negative potentials, but only in comparatively high concentrations (> or = 0.1 mM). At these concentrations, riluzole also caused an open-channel block at acetylcholine receptor channels. We conclude that riluzole has only a mild blocking effect on the inactivated state of voltage-gated skeletal muscle sodium channels and nicotinic acetylcholine receptor channels. As the plasma concentration of riluzole in amyotrophic lateral sclerosis (ALS) patients approximates 2 microM, it seems unlikely that asthenia is caused by a block of skeletal muscle sodium channels or acetylcholine receptor channels by riluzole.
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PMID:Interaction of high concentrations of riluzole with recombinant skeletal muscle sodium channels and adult-type nicotinic receptor channels. 1236 21

Stress urinary incontinence (SUI) is the accidental leakage of urine associated with physical activities such as running, jumping or lifting, or with sneezing and coughing. Worldwide, SUI is a highly prevalent condition, both in young and elderly women, and is a condition fraught with social isolation, loss of self-esteem and significant financial burden. Most women with SUI assume that it is an inevitable part of aging and "suffer in silence", relying on absorbent pads or lifestyle changes to cope with their condition.Unfortunately, for those who do seek medical treatment, the absence of effective and well tolerated pharmacological treatments for SUI limits the clinician's choices to behavioural modification, biofeedback and surgery. Many of the nonsurgical approaches have low success rates, particularly in the elderly and more severely afflicted. Although most continence surgeries have been reported to produce very high cure rates, many women are willing to live with their condition rather than undergo such invasive options. In an attempt to help these patients, some physicians prescribe off-label agents, including tricyclic antidepressants such as imipramine, alpha- and beta-adrenoceptor agonists, and estrogen replacement therapy. The use of these therapies has been limited by unpredictable results and adverse reactions. In addition, acetylcholine receptor antagonists are often prescribed for SUI, despite the fact that these medications have never been shown to be effective in this condition. This lack of a reliable pharmaceutical agent led to the development of duloxetine, a balanced dual reuptake inhibitor of serotonin and norepinephrine that is also being studied for the treatment of major depressive disorder. Based on in vivo data in animals, duloxetine is believed to increase the strength of urethral sphincter contractions and, thereby, prevent accidental urine leakage by increasing urethral closure forces. In clinical trials in women with SUI, duloxetine has demonstrated efficacy in reducing incontinence episodes and increasing the quality of life with no serious adverse effects. Nausea was the most common adverse event; however, in most patients it was reported early in treatment, mild-to-moderate in severity and transient. A medication such as duloxetine, if approved, would go a long way towards expanding the available treatment options for patients with SUI.
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PMID:Pharmacotherapy for stress urinary incontinence : present and future options. 1571 22

(1) Drugs play a limited role in smoking cessation. Nicotine is the drug with the best risk-benefit balance and is available in several formulations and dose strengths. However, only about 16% of patients remain abstinent after one year, compared to about 10% of patients on placebo. Bupropion, an amphetamine derivative, is best avoided. (2) Varenicline, a partial acetylcholine receptor agonist, has been approved as an aid in smoking cessation. There are no published trials of varenicline versus nicotine. (3) Four placebo-controlled trials show that after 12 weeks of treatment with varenicline about 22% of patients remain abstinent at one year, compared to 8% on placebo. In the two trials also including a group treated with bupropion, the one-year abstinence rate was significantly higher with varenicline than bupropion in one trial and also in a combined analysis of the two trials. (4) The known adverse effects of varenicline seem to be limited in scope. In the short term they mainly consist of gastrointestinal problems (especially nausea and constipation) and neuropsychological disorders (insomnia, dream disturbances, and headache). Long-term cardiac toxicity cannot currently be ruled out. Simultaneous use of nicotine and varenicline aggravates the adverse effects of nicotine. (5) In practice, varenicline does not appear to have a better risk-benefit balance than nicotine. Nicotine therefore remains the first-choice drug when a patient needs pharmacological support to stop smoking.
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PMID:Varenicline: new drug. Smoking cessation: no better than nicotine. 1716 37

Varenicline orally administered nicotine acetylcholine receptor partial agonist is approved by the US FDA and the MEA for use as an aid to smoking cessation therapy. Varenicline is more effective than bupropion but does not reduce weight gain after cessation. The superiority of de varenicline on the nicotine is not demonstrated. Nausea is a frequent adverse effect. The long term safety of varenicline is unknown. The major weapons for smoking cessation are represented by the motivation of the patient and a long term psychotherapy. As to the subject of drugs, varenicline is situated in second position, after the failure of a nicotine substitute.
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PMID:[Varenicline: an aid to smoking cessation therapy]. 1826 11

Despite advances in antiemetic therapy, chemotherapy-induced nausea and vomiting (CINV) still poses a significant burden to patients undergoing chemotherapy. Nausea, in particular, is still highly prevalent in this population. Ginger has been traditionally used as a folk remedy for gastrointestinal complaints and has been suggested as a viable adjuvant treatment for nausea and vomiting in the cancer context. Substantial research has revealed ginger to possess properties that could exert multiple beneficial effects on chemotherapy patients who experience nausea and vomiting. Bioactive compounds within the rhizome of ginger, particularly the gingerol and shogaol class of compounds, interact with several pathways that are directly implicated in CINV in addition to pathways that could play secondary roles by exacerbating symptoms. These properties include 5-HT3, substance P, and acetylcholine receptor antagonism; antiinflammatory properties; and modulation of cellular redox signaling, vasopressin release, gastrointestinal motility, and gastric emptying rate. This review outlines these proposed mechanisms by discussing the results of clinical, in vitro, and animal studies both within the chemotherapy context and in other relevant fields. The evidence presented in this review indicates that ginger possesses multiple properties that could be beneficial in reducing CINV.
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PMID:Ginger-Mechanism of action in chemotherapy-induced nausea and vomiting: A review. 2584 2