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Query: UMLS:C0002871 (anemia)
 52,094 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Ehrlichiosis (tropical canine pancytopenia) was diagnosed in Illinois in a 4 1/2-year-old mixed breed dog that had spent the previous 2 years in India. The dog had periodic epistaxis, anemia, leukopenia, hypoalbuminemia, and hypergammaglobulinemia. A titer of 1:160 for Ehrlichia canis was detected by the indirect fluorescent antibody test (IFAT). Subinoculation of blood into a clinically normal dgo resulted in typical signs of canine ehrlichiosis, and E canis was identified in circulating mononuclear cells. The recipient died 23 days after inoculation, and typical gross and microscopic lesions of ehrlichiosis were found at necropsy. Ecchymoses and petechiae were found on the gallbladder, kidneys, small intestinal mucosa, cerebrum, and cerebellum. Plasmacytosis and perivascular cuffing was evident in various organs, especially the cerebrum, cerebellum, and meninges.
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PMID:Isolation in Illinois of a foreign strain of Ehrlichia canis, the causative agent of canine ehrlichiosis (tropical canine pancytopenia). 111 43

Ehrlichiae are one of several kinds of obligate intracellular bacteria. Taxonomically, they are grouped with rickettsiae, but they can be distinguished by their unique tropism for circulating leukocytes. Ehrlichia canis causes a pancytopenia in dogs that becomes chronic if untreated. Certain breeds develop severe infections, characterized by fever, anorexia, dramatic weight loss, marked pancytopenia, anemia, peripheral edema, and hemorrhage. Ehrlichia risticii, a recently discovered species, is the cause of a serious diarrheal disease of horses. Other species of ehrlichiae have been documented as being veterinary pathogens. Recent data indicate that E. canis or a closely related species causes an acute febrile illness in humans. Clinically, the disease is similar to Rocky Mountain spotted fever, except that most patients do not have a rash. Human ehrlichiosis appears to be tickborne and is prevalent primarily in the southern Atlantic and south-central states. A mild from of ehrlichiosis has also been documented.
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PMID:Ehrlichiosis--a disease of animals and humans. 218 Oct 27

The first case of canine ehrlichiosis in Connecticut is reported. A female Brittany spaniel from Milford presented with lethargy, anorexia, fever, petechiae, splenomegaly, thrombocytopenia, anemia, elevated serum alkaline phosphatase, lymphopenia, and hypoalbuminemia. Serologic analysis revealed antibodies to Ehrlichia canis (titer, 1:2,560). This documents a more northern geographic distribution in the United States for this infectious agent than had previously been suspected.
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PMID:Canine ehrlichiosis in Connecticut. 231 82

Ehrlichia canis infection was diagnosed in a dog with a history of seizures and nonregenerative anemia. Serologic titer to E canis was greater than 1:100. Evaluation of CSF revealed a high cell count, high protein concentration, and a positive Pandy test result. Several mononuclear leukocytes in the CSF contained E canis morulae. Central nervous system lesions are commonly found on postmortem examination of animals with ehrlichiosis, although clinical reports of neurologic signs attributable to this disease are less common. Ehrlichiosis should be included in the differential diagnosis of CNS disease in dogs from enzootic areas.
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PMID:Ehrlichiosis in a dog with seizures and nonregenerative anemia. 259 63

Ehrlichia Canis, a canine rickettsia, produces an acute infection in humans characterized by thrombocytopenia, leukopenia, and anemia. Patients should be closely questioned and examined for tick bites. Rash is not prominent, leading to the interesting if somewhat inaccurate label of "spotless spotted fever." The diagnosis is made by clinical presentation, absence of positive Lyme disease or Rocky Mounted Spotted Fever (RMSF) serology, and positive E. canis titers. Tetracyclines are preferred treatment. Ehrlichiosis should be considered in the differential diagnosis of fevers of unknown origin, Lyme disease, idiopathic thrombocytopenia, and hypoplastic anemia.
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PMID:Ehrlichiosis--"spotless spotted fever". 266 39

Clinical, hematologic, and immunologic findings for 14 dogs with Ehrlichia canis monoclonal gammopathy were studied retrospectively. Epistaxis, anemia, thrombocytopenia, hypoalbuminemia, hypergammaglobulinemia, and proteinuria were documented in the majority of these dogs. The serum protein electrophoresis pattern was characterized by a distinct narrow-base monoclonal spike, by a broad-base monoclonal spike, or by a monoclonal spike superimposed on a polyclonal gammopathy. The monoclonal spike disappeared following tetracycline treatment for ehrlichiosis. The long-term prognosis following treatment was generally good. The diagnostic features of monoclonal gammopathy due to myeloma were compared with those of E. canis monoclonal gammopathy. Owing to numerous similarities in clinical, hematologic, and immunologic findings, we conclude that an E. canis antibody titer should be determined in all dogs in which a diagnosis of benign monoclonal gammopathy is contemplated or definitive evidence of myeloma, leukemia, or macroglobulinemia is lacking.
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PMID:Monoclonal gammopathy associated with naturally occurring canine ehrlichiosis. 350 17

Laboratory findings in an adult bull terrier presented with a history of anorexia and weight loss included the following: severe anaemia, leukocytosis, neutrophilia, lymphopaenia, thrombocytopaenia, Ehrlichia canis morulae in monocytes, hypergammaglo-bulinaemia, a bleeding tendency, icterus and proteinuria. In addition, a high Haemobartonella canis parasitaemia, non-encapsulated yeasts on urinalysis and a localised Demodex canis infestation were present. Treatment for ehrlichiosis was initiated but the dog died. Lesions found were a severe cryptococcal granulomatous pneumonia and cryptococcal colonies in the lungs, bronchial lymph nodes, kidneys, liver, spleen, heart, meninges, eyes and thoracic cavity. In addition, hyphal forms resembling Filobasidiella neoformans, the teleomorph of Cryptococcus neoformans, were seen in lung fine needle aspiration smears, impression smears and lung sections. C. neoformans was cultured from urine, lung and liver. Lung and kidney also yielded Salmonella typhimureum. Cortical atrophy with T-cell depletion of lymph nodes as well as splenic lymphoid follicular atrophy, typical of chronic ehrlichiosis-induced cell mediated immunosuppression, could have predisposed to the fatal disseminated cryptococcis.
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PMID:Fatal disseminated cryptococcosis and concurrent ehrlichiosis in a dog. 350 65

Case records of horses with equine ehrlichiosis (Ehrlichia equi) at the University of California Veterinary Medical Teaching Hospital and Ackerman Creek Large Animal Clinic were analyzed for evaluation of clinical signs, time of onset, hematologic values, response to treatment, and recovery. Equine ehrlichiosis was found to be seasonal in horses in the foothills of northern California, with higher incidence than reported previously. The horses developed fever, anorexia, depression, limb edema, icterus, and ataxia. Hematologic changes were leukopenia, thrombocytopenia, icterus, anemia, and inclusion bodies in the neutrophils and eosinophils. Diagnosis was made by observing the characteristic inclusion bodies, using a standard Wright's stain. Mortality was low, although complications of opportunistic secondary infection and injury due to ataxia did develop. Treatment with tetracycline resulted in prompt clinical improvement within 24 hours. Chronic cases were not detected. Equine ehrlichiosis should be differentiated from diseases with similar clinical signs including encephalitis, liver disease, purpura hemorrhagica, equine infectious anemia, and equine viral arteritis.
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PMID:Equine ehrlichiosis in northern California: 49 cases (1968-1981). 355 86

Rocky Mountain spotted fever (RMSF) or ehrlichiosis was diagnosed in dogs on the basis of specific immunofluorescent testing for each disease. Comparisons between clinical and laboratory findings were made between the 2 diseases. The incidence of RMSF tended to be more seasonal and it affected younger dogs. Purebred dogs appeared to be more susceptible to both diseases. In general, RMSF had a more rapid and severe course of clinical illness than did ehrlichiosis, but acute ehrlichiosis was difficult to differentiate from RMSF. Both diseases were characterized by fever, depression, lymphadenopathy, and signs of neurologic dysfunction; petechial hemorrhages or other signs of hemorrhagic diathesis were evident only in a small proportion of cases. Anemia, leukopenia, and thrombocytopenia were more common in dogs with ehrlichiosis, whereas those with RMSF more often had leukocytosis and thrombocytopenia. Hypoalbuminemia was found in dogs with both diseases, but those with ehrlichiosis usually had concurrent hyperglobulinemia. High serum alkaline phosphatase activity and serum cholesterol concentration, and low serum calcium concentration were more common in dogs with RMSF than with ehrlichiosis. Rising serum titers or positive direct immunofluorescence for Rickettsia rickettsii in skin biopsy specimens were used to confirm RMSF, whereas a single serum titer for Ehrlichia canis enabled detection of ehrlichiosis. In the absence of neurologic deficits and when dogs were treated with tetracycline, dogs with RMSF made a more rapid and consistent recovery than did dogs with ehrlichiosis.
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PMID:Rocky Mountain spotted fever in dogs and its differentiation from canine ehrlichiosis. 397 6

Dogs with acute Ehrlichia canis infection showed the established clinical features of acute ehrlichiosis and had thrombocytopenia, anemia, increased serum glutamic pyruvic transaminase activity, and decreased total serum protein and albumin concentrations during the first weeks after infection, and increasing gamma globulin concentrations after the third week. Gross lesions in hemic and lymphoreticular tissues were transient lymphadenomegaly, splenomegaly, and increased red long-bone marrow. Lymphoreticular hyperplasia in the paracortical area of lymph nodes and in the splenic red pulp occurred during the second week of infection. Later, small lymphocytes were replaced by medium-sized lymphocytes and plasma cells. Activity of germinal centers increased initially, as shown by numerous mitotic figures and macrophages, but diminished later, and the follicles blended with interfollicular and paracortical tissue because of a decrease in small lymphocytes in the mantle layer. We saw splenic hemorrhages near the perifollicular sinus, and vasculitis, most often phlebitis, in the kidney between weeks 2 and 4. Multifocal reticuloendothelial hyperplasia occurred in the liver during the early stage and injured adjacent hepatocytes by compression. Lesions typical of ehrlichiosis in these dogs were interstitial pneumonia, subendothelial aggregates of mononuclear cells in pulmonary blood vessels, renal periglomerular and perivenular plasmacytosis, hemopoietic hyperplasia, and perivascular cuffs of lymphocytes and plasma cells in many organs.
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PMID:Acute experimental canine ehrlichiosis. I. Sequential reaction of the hemic and lymphoreticular systems. 746 72


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