Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0023380 (lethargy)
 5,697 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

One hundred and fourty eight children with diarrhea of less than 1 week duration, admitted to hospital, were studied. Sixteen cases with enterotoxigenic Escherichia coli (ETEC) associated diarrhea and 132 cases from whom ETEC was not isolated were compared. Age, nutritional status and duration of illness were similar in both groups. Children with ETEC infections passed more loose stools (P = 0.006), were more severely dehydrated (P = 0.0007) and were more lethargic (P = 0.04) on admission than children without ETEC infections. Complications were more often observed in the ETEC group. Six children with ETEC infections had severe hypotension and required intravenous rehydration therapy (P = 0.005). Four of them developed hypovolaemic shock (P = 0.002). Multiple antibiotic resistance was observed in 75% of ETEC isolated from children with diarrhea. Seasonal variation of ETEC shows a bimodal distribution before and after the rainy season. Concomitant infections were diagnosed in 71% of children, 66% got antibiotic treatment and 93% received oral rehydration solution (ORS). Two children died during hospitalization. Case fatality rate was 1.35 per cent. The findings of this study indicate that ETEC is a common cause of diarrhea in Khmer children and can cause severe disease.
 ...
PMID:Enterotoxigenic Escherichia coli associated diarrhea: the clinical pattern in Khmer children. 248 93

Toxicosis caused by Anabaena spiroides was diagnosed in 7 of 26 finishing hogs in a farrow-to-finish operation in Kentucky. Several sick pigs in the herd had the following clinical signs: vomiting, dull appearance, lethargy, anorexia, muscle tremors, frothing at the mouth, coughing, sneezing, dyspnea, and bloody diarrhea. Of the 7 dead pigs, 2 were necropsied. Tissue speciments and stomach contents were obtained for microscopic, microbiologic, and toxicologic evaluations. In addition, vomitus from sick pigs and pond water samples were collected for laboratory analysis. Direct microscopic examination of pond water, vomitus, and stomach contents revealed nearly pure A spiroides, a toxic blue-green algae. The possible involvement of bacterial toxins in these pigs was not established; however, the laboratory and field data suggested that the clinical signs and death losses were attributable to the consumption of pond water mixed with the bloom of the alga, A spiroides.
 ...
PMID:Blue-green algae (Anabaena spiroides) toxicosis in pigs. 250 12

Newborn guinea pigs, orally infected with Salmonella typhi were examined at various intervals of time in order to determine bacterial distribution in tissues and to establish possible correlation with the clinical aspects manifested. Histopathological examination evidenced typical lesions in jejunum, ileum, caecum and especially in regional lymphatic tissues. Spleen, liver and mesenteric lymph nodes presented granulomatous lesions similar to those observed in in human typhoid fever. After oral administration, the animals reacted with anorexia, febrile reactions, bacteremia, diarrhoea, positive stool cultures, dehydration, lethargy and antibodies too were produced. Our results indicate that typhoid infection may be induced in newborn guinea pigs; the model may be used for an assessment of attenuated live typhoid vaccine control.
 ...
PMID:Reaction and response of newborn guinea pigs to experimental Salmonella typhi infection. 252 Jun 70

Thirty-two cats referred to the Feline Studies Centre between June 1987 and October 1988, and 14 in-contact cats, were found to be infected with feline immunodeficiency virus. Most of the 46 cats were non-pedigree and free ranging; 27 were male (19 neutered) and 19 were female (18 neutered). Their ages ranged from one to 17 years and the average age was 5.8 years. The most common clinical signs were lethargy, inappetence, weight loss, pyrexia and lymphadenopathy; most cases had multiple abnormalities. Other common signs were gingivitis, diarrhoea, rhinitis and ocular discharge. Eight cats had neoplasia. The commonest haematological abnormalities were anaemia, neutropenia, lymphopenia and monocytosis. Eight cats had lymphocytosis; seven of these were in a single house-hold. Several cats had high serum globulin levels and half of those tested had high IgG levels. Seven cats had no detectable antibody to feline immunodeficiency virus even though the virus was cultured from the peripheral blood lymphocytes. During follow-up for up to 60 weeks one cat died and 23 were destroyed on humane grounds.
 ...
PMID:Clinical and laboratory findings in cats infected with feline immunodeficiency virus. 255 57

Alpha-2 adrenoceptor agonists exhibit antidiarrheal activity in animal models and in humans. However, hypotensive and sedative side effects seriously limit the use of these agents to treat diarrhea. SK&F 35886 (2,6-dimethyl phenylamino imidazoline) is an alpha-2 adrenoceptor agonist with little central nervous system activity. In Ussing chamber preparations of rabbit ileum, SK&F 35886 produces a concentration-dependent decrease in basal short-circuit current (Isc) (EC50 0.2 microM) that is dependent on the presence of mucosal HCO3. This concentration-response curve is shifted to the right of rauwolscine, increasing the EC50 to 30 microM. Prazosin had no effect on this response. Flux studies indicate that SK&F 35886 increases net Cl absorption and enhances HCO3 absorption without altering net Na flux. After PGE2 stimulation of Isc, SK&F 35886, applied either serosally or mucosally, immediately returns the Isc to base line. This effect is due to a reversal of the PGE2-induced inhibition of Na and Cl absorption. In vivo SK&F 35886 dose-dependently inhibits PGE2-induced enteropooling when given orally (ED50 approximately 31 micrograms/kg). This effect is attenuated significantly by rauwolscine (1.0 micrograms/kg s.c.). In cecectomized rats, SK&F 35886 abolishes PGE2-induced diarrhea within 1 hr after oral administration of the drug. SK&F 35886 (500 micrograms/kg p.o.) did not alter hexobarbital sleep time or elicit piloerection or lethargy, whereas clonidine (37.3 micrograms/kg p.o.) significantly enhanced hexobarbital sleep time. These results illustrate the ability of a peripheral acting alpha-2 agonist to promote absorption and inhibit secretion and diarrhea in the mammalian intestine.
 ...
PMID:Antidiarrheal activity of alpha-2 adrenoceptor agonist SK&F 35886. 256 89

During the past two decades, essentiality of zinc for man has been established. Deficiency of zinc in man attributable to nutritional factors and several diseased states has been recognized. High phytate content of cereal proteins decreases availability of zinc; thus the prevalence of zinc deficiency is likely to be high in the population subsisting mainly on cereal proteins. Zinc deficiency has been noted to occur in patients with malabsorption syndrome, chronic renal disease, cirrhosis of the liver, sickle cell disease, AE (acrodermatitis enteropathica), and other chronically debilitating diseases. Growth retardation, male hypogonadism, skin changes, poor appetite, mental lethargy, and delayed wound healing are some of the manifestations of chronically zinc-deficient human subjects. In severely zinc-deficient patients, dermatological manifestations, diarrhea, alopecia, mental disturbances, and intercurrent infections predominate. If untreated, the condition becomes fatal. Zinc deficiency affects testicular functions adversely in man and animals. This effect of zinc is at the end-organ level. It appears that zinc is essential for spermatogenesis. Zinc is involved in many biochemical functions. Several zinc metalloenzymes have been recognized in the past decade. Zinc is required for each step of cell cycle in microorganisms and is essential for DNA synthesis. The effect of zinc on protein synthesis may be attributable to its vital role in nucleic acid metabolism. The activities of many zinc-dependent enzymes have been shown to be affected adversely in zinc-deficient tissues.(ABSTRACT TRUNCATED AT 250 WORDS)
 ...
PMID:Clinical and biochemical manifestations of zinc deficiency in human subjects. 258 Aug 77

Bacterial attachment-effacement (att-eff) is emerging as an important virulence characteristic common to both enteropathogenic Escherichia coli (EPEC) and enterohemorrhagic E. coli (EHEC). The contribution of the plasmid-encoded EPEC adherence factor to the production of mucosal lesions and diarrhea was investigated in gnotobiotic piglets. Bacterial att-aff in the intestinal mucosa of piglets infected with plasmid-cured EPEC strain E2348/69 (O127) was indistinguishable from that in piglets infected with the parent strain, but the distribution of lesions was different; it occurred in the small intestines of 6 of 7 piglets infected with the parent strain compared with only 2 of 11 (P = 0.006) infected with the plasmid-cured strain. Plasmid-encoded factors in EPEC and EHEC strains did not appear to contribute to bacterial competition with normal gut microflora. Of 13 strains belonging to five EPEC serogroups, O55, O142, O26, O119, and O111, 3 fulfilled the criteria for EHEC (2 O26 and 1 O111). There were three distinct patterns of bacterial association with the intestinal mucosa of infected piglets. (i) EHEC strains caused bacterial att-eff associated with extensive destruction of surface and glandular epithelia in the large intestines with little or no inflammatory response. (ii) Some EPEC strains caused severe diarrhea which correlated with the extent of bacterial att-eff in the proximal small intestine, disruption of the epithelial cell membrane, and inflammation. It is suggested that, with respect to virulent strains, this degree of involvement determines the clinical outcome. Mildly pathogenic strains (O127 and O119), in which bacterial att-eff was restricted to the distal halves of the small and large intestines, caused little or no diarrhea. In such strains, nonimmune host factors (smaller, poorly feeding, and lethargic piglets) tended to play a determining role with regard to the degree of involvement of the small intestine and hence the clinical outcome. (iii) One strain (O55) caused illness and mucosal damage which could not be accounted for by the sparse bacterial att-eff observed in the gut. Instead, bacteria penetrated into and proliferated in the lamina propria, undermining the villous tips in the small intestine. Bacterial att-eff was the most important virulence factor in most of the strains examined, but plasmid-mediated factors facilitated bacterial adhesion in the small intestine, which may explain the reduced pathogenicity of the plasmid-cured variant of strain E2348/69 for human volunteers.
 ...
PMID:Nature and distribution of mucosal lesions associated with enteropathogenic and enterohemorrhagic Escherichia coli in piglets and the role of plasmid-mediated factors. 264 33

Pneumatosis intestinalis (PI) is a well-recognized manifestation of necrotizing enterocolitis (NEC) in the newborn--a condition that often requires surgical intervention for infarcted bowel. However, little information is available concerning PI in older children or its management. Sixteen older infants and children (greater than 2 months) had x-ray findings of PI (intramural air). There were eight girls and eight boys ranging in age from 2 months to 8 years. Associated conditions included short bowel syndrome (SBS) (8), congenital heart disease (2), iron ingestion (1), nesidioblastosis (1), hemolytic anemia (1), rheumatoid arthritis (1), bronchopulmonary dysplasia (BPD) (1), and malrotation (1). Clinical presentation included abdominal distension (13), bloody diarrhea (12), bilious emesis (5), and lethargy (5). Two patients on steroids had unsuspected PI identified as an incidental operative finding during pancreatectomy for nesidioblastosis (1) and splenectomy for hemolytic anemia (1), respectively. Only four other children (iron toxicity, postcardiac catheterization, rheumatoid arthritis, and BPD required surgical intervention. Each manifested peritioneal irritation, acidosis, and hypotension or had pneumoperitoneum on abdominal x-ray. In ten of 14 patients, PI was managed nonoperatively with nasogastric suction, fluid resuscitation, intravenous (IV) antibiotics (seven to ten days), and repeated abdominal x-ray and physical examinations. Children with SBS comprised 50% of the total number of patients and eight of ten treated by observation. All had associated viral syndromes (rotavirus) or rhotozyme-positive stools and developed bloody diarrhea. There were two deaths (12.5%) in patients with iron toxicity and congenital heart disease who required resection of gangrenous bowel. All of the other patients survived.(ABSTRACT TRUNCATED AT 250 WORDS)
 ...
PMID:Pneumatosis intestinalis in children beyond the neonatal period. 267 35

Proliferative colitis associated with intracellular Campylobacter sp was diagnosed in 10 ferrets. The ferrets had a history of diarrhea (often blood-tinged or mucoid), dehydration, and chronic weight loss. Additional clinical signs included rectal prolapse, lethargy, fever, and a palpably thick colon. In 5 ferrets, the diagnosis was confirmed by colonic biopsy, via endoscopy. Supportive treatment in 5 ferrets did not alleviate the clinical signs or the proliferative intestinal disorder. oral chloramphenicol treatment (50 mg/kg of body weight, q 12 h for 10 to 21 days) resulted in marked clinical improvement and eradication of proliferative intestinal lesions in 5 ferrets.
 ...
PMID:Treatment of proliferative colitis in ferrets. 272 36

Four isolates of Campylobacter jejuni were studied to determine changes in virulence following six serial passages in chicks. Chicks that received invasive isolates exhibited diarrhea and depressed weight gain. Immature mice were used to assess virulence of the passaged isolates of C. jejuni. Nine-day-old mice infected with passaged isolates showed lethargy, dehydration, depression, decreased weight gain, and occult blood in feces. Mouse pups inoculated with the third and sixth chick passage levels of an invasive isolate showed significant depression in mean daily weight gain and elevated mortality compared with controls and subjects inoculated with unpassaged isolates. This study demonstrated enhancement of virulence in a C. jejuni isolate following chick passage. In contrast, three other passaged isolates failed to show any consistent increase in virulence.
 ...
PMID:Enhancement of Campylobacter jejuni virulence by serial passage in chicks. 277 92


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>