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Query: UMLS:C0011570 (depression)
 172,036 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Strychnine toxicosis is characterized by inducible tetanic seizures and metaldehyde poisoning by fine fasciculations progressing to generalized tremors and seizures. Intoxication with 1080 causes seizures, random running movements, vomiting, defecation, urination, acidosis and hyperglycemia. Intoxication with rodenticides causing coagulopathy is characterized by hemorrhage into body cavities but not necessarily external hemorrhage. Anticholinesterase insecticides cause salivation, urination and defecation, while chlorinated hydrocarbon insecticides cause CNS disturbances. Ethylene glycol intoxication results in ataxia, depression, coma, vomiting and tachypnea, followed by acute renal failure. Urea poisoning causes bloat and CNS signs in cattle. Monensin intoxication in horses lasts several days and causes stiffness, colic, uneasiness and recumbency. Salt poisoning results in depression, seizures and hypernatremia. Lead poisoning is associated with central and peripheral nervous system signs, as well as increased numbers of nucleated RBC and basophilic stippling of RBC. Arsenic poisoning results in GI pain, diarrhea, weakness and death. Copper toxicosis in sheep is manifested by hemolytic anemia, hemoglobinemia and hemoglobinuria. Plants that may intoxicate domestic animals include sorghum, greasewood, halogeton, water hemlock, Japanese yew, larkspur, lupine, milk-weed, philodendron, oleander, castor bean and precatory bean.
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PMID:Practical toxicologic diagnosis. 649 3

Sickness occurred in 3 of 4 horses within 24 h of being sprayed with an 0.025% w/v aqueous suspension of amitraz. The latter consisted of a portion of an amitraz aqueous suspension made up some 3 weeks previously, to which some freshly prepared spray fluid had been added. It seemed likely that the amitraz in the older solution had broken down to the highly toxic N-3, 5- dimethylphenyl N-methyl formamadine derivative and that this was in fact the main cause of the untoward effects observed. The horses displayed typical clinical signs of tranquillisation, depression, ataxia, muscular incoordination and impaction colic lasting up to 6 days. Subcutaneous oedema of the face occurred in one horse. The syndrome was accompanied by mild dehydration and acidosis. All horses survived after persistent symptomatic treatment including the giving of intravenous fluids, enemas, analgesics every 3 h, multiple doses of paraffin oil per os and dexamethasone intravenously. Following the eventual relief of constipation the horses scoured profusely for 24 h before their condition returned to normal.
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PMID:Illness in horses following spraying with amitraz. 650 68

The individual merit of the use of 43 variables to assess the prognosis of equine colic cases was examined. The following variables revealed highly significant (P less than 0.001) differences between cases which survived and those which died: blood pressure; heart rate; oral mucosal capillary refill time; degree of mental depression; venous haemoglobin concentration, haematocrit, erythrocyte count, urea concentration and lactate concentration; peritoneal fluid lactate concentration; and haematocrit/plasma protein and serum protein concentration ratios. Thus, in general, variables which assessed cardiovascular function were good prognostic guides.
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PMID:Prognosis in equine colic: a study of individual variables used in case assessment. 664 80

A depressed patient on tricyclic antidepressants developed acute flatulent abdominal distention. Aerophagia, commonly associated with complaints of abdominal distention, indigestion, and colic, is common in depressive states. This case report explores the relationships between depression, tricyclic antidepressants, and gastrointestinal function.
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PMID:Aerophagia and depression: case report. 664 1

In a retrospective study of 269 horses that had been treated with phenylbutazone, horses receiving less than or equal to 8.8 mg/kg of body weight/day for less than or equal to 4 days or 2 to 4 mg/kg of body weight/day for up to 50 days remained clinically normal. Anorexia, depression, colic, hypoproteinemia, diarrhea, melena, weight loss, ventral edema, petechial hemorrhages of mucous membranes, oral and gastrointestinal tract erosions and ulcers, renal papillary necrosis, and death were among the complications seen in horses that had received greater than 8.8 mg/kg of body weight/day. In 2 cases, signs suggestive of gastrointestinal-related shock were also evident.
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PMID:Phenylbutazone toxicosis in the horse: a clinical study. 672 3

The present retrospective study compared objectively the prognostic value of many variables routinely used in the assessment of equine colic cases. The best prognostic variables were those which assessed the integrity of cardiovascular function. Ranked in order of decreasing merit the following variables were able to discriminate between horses which lived and those which died: systolic pressure, blood lactate concentration, oral mucous membrane capillary refill time, diastolic pressure, arterial pulse amplitude, degree of mental depression, blood urea concentration, haematocrit, heart rate, haematocrit/plasma protein ratio, oral mucous membrane colour, jugular filling rate, frequency of gut sounds, differential blood leucocyte count, blood glucose concentration and respiratory rate. Assessment of systolic pressure alone appropriately classified the outcome (survival or death) of 86 per cent (64 out of 73) cases examined. Combined assessment of systolic pressure, blood lactate concentration, blood urea concentration and haematocrit permitted accurate classification of 93 per cent (68 of 73) of the cases examined. Outcome classification formulae for these four variables, alone and in all combinations, are presented.
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PMID:Prognosis in equine colic: a comparative study of variables used to assess individual cases. 688 10

The present study retrospectively examined clinical and clinicopathological findings in horses with colic to determine which variables distinguished between medically treatable cases and cases which required surgical intervention. Heart rate, haematocrit, haemoglobin concentration, blood erythrocyte count, frequency of borborygmi and degree of mental depression showed the greatest differences (P less than 0.001) between medical and surgical groups. However, some variables which primarily evaluated cardiovascular function, ie, blood pressure, oral mucosal capillary refill time and blood lactate concentration, were not significantly different between medical and surgical groups. When several of the following findings are observed together surgery is suggested: moderate to marked colic signs; tacky to dry oral mucosa which is discoloured (especially when brick-red or blue); decreased to absent borborygmi, probably associated with absence of rectal faeces; nasograstric intubation producing refluent fluid; leucocytosis with a left-shift; and tachypnoea, tachycardia, elevated haematocrit, hyperglycaemia and uraemia.
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PMID:Assessment of the necessity for surgical intervention in cases of equine colic: a retrospective study. 688 11

Clinical signs and lesions of levamisole toxicosis include: nausea, vomiting, increased salivation, frequent urination and defecation, colic, dizziness, headache, muscle tremors, ataxia, anxiety, hyperesthesia with irritability, clonic convulsions, depression, rapid respiration, dyspnea, prostration, collapse, hemorrhages in the subepicardium and thalamus, enteritis, hepatic degeneration and necrosis, and splenic congestion. Most of these signs and lesions are similar to those observed in nicotine poisoning. Levamisole causes vasopressor and panting effects which are blocked by ganglionic blocking agents hexamethonium and mecamylamine but are not blocked by atropine. The vasopressor effect of levamisole is blocked by alpha-adrenergic antagonists phentolamine and dibenamine; however, the respiratory effect of levamisole is not affected by these alpha-adrenergic antagonists. Repeated IV injections of levamisole cause a tachyphylactic response. With levamisole-induced tachyphylaxis, the effects of other ganglionic stimulants dimethylpiperazinium and nicotine are also abolished. Levamisole causes an electroencephalographic arousal which is antagonized by atropine sulfate and mecamylamine. There is also a structural similarity of levamisole to nicotine. These studies suggest that levamisole is a nicotine-like compound. Possible treatment of levamisole poisoning is discussed. Drug interactions of levamisole with organophosphates and anthelmintics, eg, pyrantel, methyridine, and diethylcarbamazine, are also discussed.
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PMID:Toxicity and drug interactions of levamisole. 721 95

Trials were conducted in ponies to evaluate the efficacy of pyrantel pamoate (Strongid-T(R)) and two newer anthelmintics not yet commercially available, nitramisole and avermectin B(1)a, against migrating Strongylus vulgaris larvae. Ponies were removed from their mares within 24-48 hr after birth and reared in isolation, worm free. Between six and 14 weeks of age they were infected with 2000 or 2500 infective S. vulgaris larvae. Subsequently, they were monitored daily for clinical signs until the experiment terminated at 28 days postinfection. All ponies showed increased body temperature and reduced appetite within the first week of infection. All anthelmintics were administered on day 7 and in addition pyrantel pamoate was given on day 8 postinfection. The anthelmintics were in liquid formulation. Nitramisole and pyrantel pamoate were given by stomach tube and avermectin B(1)a by subcutaneous injection.Following administration of these compounds toxic reactions were not observed. All anthelmintics caused a reduction in body temperature and increased appetite and effected a clinical cure. In ponies which were not treated with an anthelmintic, temperatures remained elevated and appetites never returned completely to normal. These ponies also showed variable degrees of lethargy, depression, recumbency and colic and the majority died between two and three weeks postinfection. At necropsy, these control ponies showed variable degrees of adhesions involving the abdominal organs, necrosis of the ileum and cecum and severe arteritis and thrombosis of the major abdominal arteries and their branches.Although pyrantel pamoate, used at eight times the therapeutic dose for intestinal nematodes in the horse, effected a clinical cure it did not produce a radical cure. At necropsy, ponies treated with pyrantel pamoate had arteritis and thrombosis of the cranial mesenteric artery and its major branches. Nitramisole and avermectin B(1)a were able to effect both a clinical and radical cure.
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PMID:Evaluation of pyrantel pamoate, nitramisole and avermectin B1a against migrating Strongylus vulgaris larvae. 739 1

The diagnosis of third compartment ulcers in the llama and alpaca is largely one of exclusion. Clinical signs may include mild to severe colic, inappetence, decreased fecal output, bruxism, and depression. Abdominocentesis results are usually unremarkable if C3 perforation has not occurred but reflective of a generalized peritonitis if full thickness ulceration has occurred. The H-2 receptor antagonists cimetidine and ranitidine do not suppress C3 acid production for a significant period of time and are of questionable efficacy in the management of C3 ulcers.
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PMID:Third compartment ulcers in the llama. 795 64


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