Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0013395 (dyspepsia)
 4,879 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

When mass spectrophotometric analysis is used for the 13C-urea breath test to assess H. pylori infection, it is costly, complicated, and time-consuming. To overcome these disadvantages, we utilized an infra-red spectrophotometer as a substitute for the mass spectrophotometer. A total of 153 patients (181 tests) analyzed with peptic ulcers or non-ulcer dyspepsia were investigated. Breath samples were collected 15 min after ingestion of 13C-urea (100 mg in 30 ml water). An infra-red spectrophotometer was used to determine the concentration of 13CO2 in the expirate. The 13CO2/12CO2 ratio was also measured by mass spectrophotometry to compare results with those of infra-red spectrophotometric analysis. Direct detection of H. pylori was qualified in biopsy specimens. Of the 181 biopsies, 138 were positive for H. pylori infection and 43 were negative. With the urea breath test, the mean value in the positive group was significantly higher than that in the negative group (0.062 +/- 0.044 vs 0.011 +/- 0.014, respectively). The cut-off level, 0.01, was determined as delta 13C atom %. The sensitivity of infra-red spectrophotometry was 97.8% (135/138) and specificity was 74.4% (32/43). There was an extremely high coefficient of correlation (r = 0.996) between mass and infra-red photometric analysis. Infra-red spectrometry appears to have great potential not only for diagnosing H. pylori infection but also for assessing treatment results. Its advantages include technical simplicity, cost-effectiveness, and high accuracy.
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PMID:Simple 13C-urea breath test with infra-red spectrophotometer. 895 16

Appropriate breast feeding practices (ABFP) are important for successful lactation. Constraints to adoption of ABFP by mothers in a squatter settlement in Karachi, Pakistan are reported. One hundred and two mother-infant pairs were followed from birth to 16 weeks of age. Eighty-seven infants received prelacteal feeds of honey as a quasi-religious ritual, 16 received ghutti for "cleansing of stomach", other prelacteal feeds were given as substitutes for breast feeding. Twenty nine mothers initiated breast feeding within 4 hours of birth. Supplemental water was given to 53 infants; major reasons being mothers' perception of thirst and diarrhoea in the infant. Supplemental milk was given to 24 infants. Insufficient milk and work load of mothers were main reasons for supplementation. Home remedies were given in 36 instances for prevention/treatment of indigestion or colds. Quasi-religious ritual of giving honey, perception that child birth was a major stress and early initiation of breast feeding adds to that stress, fear of dehydration and perception of insufficient breast milk were the major constraints to adoption of appropriate breast feeding practices.
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PMID:Constraints to adoption of appropriate breast feeding practices in a squatter settlement in Karachi, Pakistan. 907 64

Two cases of esophagitis associated with the use of alendronate are described. Both patients were women with no past history of heartburn or dyspepsia, who started alendronate for postmenopausal osteoporosis at least one week before the symptoms onset, by taking the drug with half a glass of tap water at bedtime. The first patient suffered from a severe chest pain; endoscopy showed confluent erosions of the lower third of the esophagus. The second patient had odynophagia and developed exudates and greyish plaques on the mucosa of the upper third of the esophagus. Histological examination of the esophageal specimens of both patients disclosed no Monilia, hyphae, or nuclear viral inclusions. Both patients stopped alendronate with complete recovery at follow-up. A brief review of the etiopathogenesis of pill esophagitis is also presented. Finally, emphasis is placed on the selection of patients for therapy with alendronate with warnings on how to take the drug correctly.
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PMID:[Alendronate-induced esophagitis. A report of 2 cases]. 924 56

Two hundred and twenty endoscopically proved cases of duodenal ulcer were studied in a double blind manner by dividing them into control and study groups and following them up for one year. All patients were given ranitidine 150 mg bd for 3 months. Additionally, the study group patients were asked to take dry meals (they were allowed their normal diet but asked not to take water from 1 hour before meals to 1 hour after meals) for one year. The two groups of patients were compared. The recurrence rate at one year was lower in the study group. Nausea/vomiting at the time of recurrence was also significantly lower in the study group (p < 0.02). Relief in symptoms, especially nausea/vomiting and dyspepsia was also seen to be better in the study although the difference was not statistically significant. The fall in recurrence rate observed as a result of this simple regime is very encouraging.
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PMID:Dry meals--physiological approach to management of duodenal ulcer. 938 61

Abacavir (1592U89) is a nucleoside analog reverse transcriptase inhibitor that has been demonstrated to have selective activity against human immunodeficiency virus (HIV) in vitro and favorable safety profiles in mice and monkeys. A phase I study was conducted to evaluate the safety and pharmacokinetics of abacavir following oral administration of single escalating doses (100, 300, 600, 900, and 1,200 mg) to HIV-infected adults. In this double-blind, placebo-controlled study, subjects with baseline CD4+ cell counts ranging from < 50 to 713 cells per mm3 (median, 315 cells per mm3) were randomly assigned to receive abacavir (n = 12) or placebo (n = 6). The bioavailability of the caplet formulation relative to that of the oral solution was also assessed with the 300-mg dose. Abacavir was well tolerated by all subjects; mild to moderate asthenia, abdominal pain, headache, diarrhea, and dyspepsia were the most frequently reported adverse events, and these were not dose related. No significant clinical or laboratory abnormalities were observed throughout the study. All doses resulted in mean abacavir concentrations in plasma that exceeded the mean 50% inhibitory concentration (IC50) for clinical HIV isolates in vitro (0.07 microgram/ml) for almost 3 h. Abacavir was rapidly absorbed following oral administration, with the time to the peak concentration in plasma occurring at 1.0 to 1.7 h postdosing. Mean maximum concentrations in plasma (Cmax) and the area under the plasma concentration-time curve from time zero to infinity (AUC0-infinity) increased slightly more than proportionally from 100 to 600 mg (from 0.6 to 4.7 micrograms/ml for Cmax; from 1.0 to 15.7 micrograms.h/ml for AUC0-infinity) but increased proportionally from 600 to 1,200 mg (from 4.7 to 9.6 micrograms/ml for Cmax; from 15.7 to 32.8 micrograms.h/ml for AUC0-infinity. The elimination of abacavir from plasma was rapid, with an apparent elimination half-life of 0.9 to 1.7 h. Abacavir was well absorbed, with a relative bioavailability of the caplet formulation of 96% versus that of an oral solution (drug substance in water). In conclusion, this study showed that abacavir is safe and is well tolerated by HIV-infected subjects and demonstrated predictable pharmacokinetic characteristics when it was administered as single oral doses ranging from 100 to 1,200 mg.
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PMID:Safety and pharmacokinetics of abacavir (1592U89) following oral administration of escalating single doses in human immunodeficiency virus type 1-infected adults. 1004 74

The pharmacist is an important specialist in the selection of the drug when the patient comes for pharmacist's advice of how to alleviate common gastrointestinal symptoms. Of all drugs which can be effective in these situations, only three drugs (bismuth subsalicylate, psyllium, and docusate sodium) proved to be advantageous for self-medication. Bismuth subsalicylate (BSS) is much appreciated in the treatment of peptic ulcers where it not only covers the base of the ulcer but also eradicates Helicobacter pylori. Therefore this drug does not treat only the symptoms but the cause of the disease as well. Dyspepsia may also be effectively treated with BSS because of its strong and rapid protective effect on the gastric mucosa. Last but not least, the salicylate component of this substance and not bismuth alone is responsible for the elimination of diarrhoea in the so-called traveller's diarrhoea, as the salicylate decreases enhanced secretion of fluid in the colon. On the other hand, the natural fibre psyllium may effectively alleviate constipation, because it increases the volume and weight of stools as well as the transit time in the colon and facilitates defecation. Similarly, docusate sodium is a detergent agent which facilitates the entrance of water into the stool, which is then better and more easily pushed out from the large intestine.
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PMID:[Common gastrointestinal symptoms and their effective and safe treatment]. 1042 49

The antidyspeptic property of mineral waters has for many years been based on empirical data. In the present paper we evaluated the effects of one type of mineral water, Tettuccio water from Montecatini, on gastric emptying in patients with idiopathic dyspepsia. Fourteen subjects, eight patients with idiopathic dyspepsia and delayed gastric emptying at scintigraphy and six healthy subjects with normal gastric emptying were studied. The gastric emptying of mineral water was studied with a scintigraphic method and compared with that of tap water. In patients with idiopathic dyspepsia, gastric emptying of both waters was slower than in controls but the gastric emptying of mineral water was significantly faster than that of tap water, both in dyspeptic patients and in healthy subjects. In conclusion, this mineral water stimulates gastric emptying. Further studies are needed on the possible role of this water in the management of chronic idiopathic dyspepsia.
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PMID:Effect of a mineral water on gastric emptying of patients with idiopathic dyspepsia. 1066 99

The purpose of this study was to examine if patients with functional dyspepsia could be separated into meaningful groups based on their autonomic function. Subjects were divided into two groups, and symptoms, gastric myoelectrical activity, gastric emptying, and psychological factors were compared. Group 1 had less autonomic variability but more cardiac reactivity than group 2. Symptom reports did not differ between groups. Group 1 had higher neuroticism scores than group 2, while group 2 showed greater tachyarrhythmia in response to drinking water than group 1. The relatively low autonomic variability in group 1 is consistent with higher sympathetic activity and may be associated with the group's greater neuroticism. The relative lack of cardiac reactivity in group 2 is consistent with lack of autonomic flexibility and may be related to the tachyarrhythmia observed in that group. The results of this study suggest that autonomic function may play a significant role in functional dyspepsia.
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PMID:Significance of autonomic nervous system activity in functional dyspepsia. 1079 45

The intake of larger quantities of alcoholic beverages leads to manifold functional disturbances and organ injury in the upper gastrointestinal tract. These damaging effects of alcohol are frequently the cause of complaints, such as heart burn, symptoms of dyspepsia and diarrhoea. Examples of more pronounced organ injury which can occur even following a single episode of heavy drinking are tears in the mucosa at the junction of the esophagus and the stomach (Mallory-Weiss-lesion) and hemorrhagic erosions in the stomach and/or the duodenum which may lead to massive bleeding. In the small intestine alcohol abuse interferes with the absorption of glucose, amino acids, lipids, water, sodium and vitamins (especially thiamine and folic acid). This inhibition of absorption of nutrients may contribute to nutritional deficiencies frequently observed in alcoholics. Acute alcohol ingestion can also damage the mucosa in the upper region of the small intestine and may lead to the disruption of the tips of the villi. Chronic alcohol abuse increases markedly the prevalence of bacterial overgrowth in the small intestine. The findings of human and animal studies suggest that the mucosal injury together with bacterial overgrowth favour the following sequence of events: Alcohol induced mucosal injury in the small intestine increases the permeability of the mucosa to macromolecules, such as endotoxin and/or other bacterial toxins, into the blood or lymph. This results in the release of potentially toxic cytokines and other mediators like Kupfer cells and other phagocytes. These cytokines and other mediators, in turn, exert multiple injurious effects on the microcirculation and membranes. The result is cell damage and even cell death (apoptosis, necrosis) in the liver and other organs. Chronic alcohol abuse is one of the most important risk factors for the development of cancers of the tongue, larynx, pharynx and esophagus. In many countries alcohol abuse is the most important cause for the development of chronic pancreatitis. In the initial phase the disease is frequently characterised by episodes of 'acute' pancreatitis. These episodes develop only on the basis of prolonged alcohol abuse leading to subclinical damage of the gland. The latter is found in about 20-50% of patients with chronic alcohol abuse while the clinically overt pancreatitis is observed in only 1%-3% of alcoholics. Despite numerous studies performed in animal experiments and man the pathogenesis of alcoholic pancreatitis until now has not been clarified.
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PMID:[Alcohol, the gastrointestinal tract and pancreas]. 1080 79

Gastric dysrhythmias and normal gastric myoelectrical activity have been recorded in patients with functional dyspepsia. The aim of this study was to determine the reproducibility of gastric myoelectrical patterns and responses to a water load in patients with dysmotility-like functional dyspepsia and healthy control subjects. We studied 24 patients with dysmotility-like functional dyspepsia and 24 age-matched control subjects. Gastric myoelectrical activity was assessed using cutaneous electrodes to record electrogastrograms (EGGs) before and after the subjects ingested water until full. The EGGs with water load tests were repeated 1 week apart. The patients ingested significantly smaller volumes of water at both week 1 and 2 (358 +/- 26 mL and 349 +/- 30 mL) compared to control subjects (557 +/- 35 mL and 560 +/- 27 mL, p < 0.01). Gastric dysrhythmias were found in 4 of 24 (16.7%) control subjects at each visit and in 14 (58%) and 12 (50%) of the dyspeptic patients at week 1 and 2, respectively. Of 14 patients, 2 (14.3%) had gastric dysrhythmias at week 1 but had normal gastric rhythms at week 2. Thus, reproducibility was 100% in the control subjects and 91.7% in the patients. In conclusion, some variability in EGG pattern occurred, but gastric myoelectrical activity and responses to the water load test were generally consistent and reproducible in patients with dysmotility-like functional dyspepsia and in healthy control subjects.
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PMID:Reproducibility of gastric myoelectrical activity and the water load test in patients with dysmotility-like dyspepsia symptoms and in control subjects. 1099 27


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