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canine brucellosis: bacteriological and serological investigation of naturally infected dogs in mexico city.bacteriological investigation of canine brucellosis in mexico city revealed a high rate (11.8%) of brucella canis infection in a sampling of 59 stray dogs. when conservative criteria were employed in the interpretation of serological test results, there was general agreement between the serological and bacteriological findings; however, some animals with localized male genital tract infections could not be judged as infected solely by serological tests. all mexican field isolates were identified ...1977591631
[acid-base equilibrium and arterial gasometry in the dog at the altitude of mexico city]. 19734712791
coexistence of toxocara and toxascaris in dogs in mexico city. 19685689172
incidence of toxocara canis and other helminth parasites of dogs in mexico city. 19676035723
[aeroallergens, skin tests and allergic diseases in 1091 patients].to know the frequency of positively of several skin tests, data cards from patients, of the allergy and clinic immunology service of the hospital de especialidades del centro medico nacional siglo xxi (mexico city), between january, 1989 and march, 1995, were reviewed. aqueous extracts manufactures by our laboratory were applied, in a dilution of 1:1000 weight-volume. 1091 from 5,651 skin tests patients were positive. asthma and rhinitis were diagnosed in 492, allergic rhinitis in 289, allergic ...19979377113
[migrant erythema as clinical presentation of cutaneous larva migrans in mexico city].cutaneous larva migrans (clm) is a ubiquitous self-limited skin eruption, most frequently caused by the larvae of dog and cat hookworms. although clm is most frequent in tropical climates, the infection is becoming more common in urban areas. clm has been frequently misdiagnosed and/or treated inappropriately, and mimics rheumatic, infectious, vascular, or dermatologic diseases. we here in report the clinical presentation and management of 18 cases of clm.199910425819
[risk factors associated with systemic lupus erythematosis in a mexican population].to assess risk factors associated with systemic lupus erythematosus (sle) in the mexican population.200212132318
[latent infection produced by pneumocystis carinii in domestic animals in mexico city]. 196314113613
ecological analysis and description of the intestinal helminths present in dogs in mexico city.the objective of the present study was to determine the prevalence of parasitoses in stray dogs from mexico city, as well as to describe the structure of the intestinal helminth communities present in said hosts. one hundred and twenty dog intestines were collected and dissected to evaluate their parasitic load; finding parasites in 102 dogs (85%). the cestodes collected were: dipylidium caninum in 72 dogs (60%), taenia hydatigena in three (2.5%), taenia pisiformis in two (1.6%), echinococcus gr ...200415631907
risk factors associated with house infestation by the chagas disease vector triatoma pallidipennis in cuernavaca metropolitan area, mexico.chagas disease caused by infection with trypanosoma cruzi chagas (kinetoplastida: trypanosomatidae) is widespread in mexico, transmitted by various triatomine bugs (hemiptera: reduviidae). the only domestic vector in cuernavaca (population 650 000) is triatoma pallidipennis (ståhl) with t. cruzi seroprevalence ranging from 1% to 9% in the resident human population. we surveyed possible risk factors for t. pallidipennis infestation at cuernavaca (altitude 1200-2200 m) on south-western slopes of t ...200515958028
comparison of strength of the human-animal bond between hispanic and non-hispanic owners of pet dogs and cats.to assess differences in strength of the human-animal bond between hispanic and non-hispanic owners and determine whether these variations were associated with differences in medical care for pets.201020187816
[salmonellas isolated from the intestines of goats in the environs of mexico city]. 19705530662
dna damage in nasal and brain tissues of canines exposed to air pollutants is associated with evidence of chronic brain inflammation and neurodegeneration.acute, subchronic, or chronic exposures to particulate matter (pm) and pollutant gases affect people in urban areas and those exposed to fires, disasters, and wars. respiratory tract inflammation, production of mediators of inflammation capable of reaching the brain, systemic circulation of pm, and disruption of the nasal respiratory and olfactory barriers are likely in these populations. dna damage is crucial in aging and in age-associated diseases such as alzheimer's disease. we evaluated apur ...200314692621
composition of lower urinary tract stones in canines in mexico city.effective long-term management of urolithiasis depends on identification and manipulation of factors contributing to initial stone formation; identification of these factors depends on accurate identification of the mineral composition of the urolith involved. the purpose of this study was to determine the chemical composition of uroliths obtained from the low urinary tract of dogs in mexico city. one hundred and five cases of urolithiasis were studied in which stones were surgically obtained fr ...201020077111
effects of a cyclooxygenase-2 preferential inhibitor in young healthy dogs exposed to air pollution: a pilot study.residency in cities with high air pollution is associated with neuroinflammation and neurodegeneration in healthy children, young adults, and dogs. nonsteroidal anti-inflammatory drugs may offer neuroprotection. the authors measured the plasma concentrations of 3-nitrotyrosine and the cerebro-spinal-fluid concentrations of prostaglandin e2 metabolite and the oligomeric form of amyloid derived diffusible ligand; measured the mrna expression of cyclooxygenase-2, interleukin 1beta, cd14, and aquapo ...200919638440
air pollution, cognitive deficits and brain abnormalities: a pilot study with children and dogs.exposure to air pollution is associated with neuroinflammation in healthy children and dogs in mexico city. comparative studies were carried out in healthy children and young dogs similarly exposed to ambient pollution in mexico city. children from mexico city (n: 55) and a low polluted city (n:18) underwent psychometric testing and brain magnetic resonance imaging mri. seven healthy young dogs with similar exposure to mexico city air pollution had brain mri, measurement of mrna abundance of two ...200818550243
pediatric respiratory and systemic effects of chronic air pollution exposure: nose, lung, heart, and brain pathology.exposures to particulate matter and gaseous air pollutants have been associated with respiratory tract inflammation, disruption of the nasal respiratory and olfactory barriers, systemic inflammation, production of mediators of inflammation capable of reaching the brain and systemic circulation of particulate matter. mexico city (mc) residents are exposed to significant amounts of ozone, particulate matter and associated lipopolysaccharides. mc dogs exhibit brain inflammation and an acceleration ...200717325984
giardia intestinalis and other zoonotic parasites: prevalence in adult dogs from the southern part of mexico city.the protozoan giardia intestinalis is a mammalian-infecting parasite. it produces diarrhoea and malabsorption in its hosts. there is growing evidence that dogs could be reservoirs and play an important role in transmission. in mexico, there are few data on the frequency of g. intestinalis. therefore, we studied the small intestine of stray dogs, euthanazed at the "culhuacan" control canine centre, towards the end of 1997 and during the summer of 1998. we microscopically analysed intestinal conte ...200515927399
air pollution and brain damage.exposure to complex mixtures of air pollutants produces inflammation in the upper and lower respiratory tract. because the nasal cavity is a common portal of entry, respiratory and olfactory epithelia are vulnerable targets for toxicological damage. this study has evaluated, by light and electron microscopy and immunohistochemical expression of nuclear factor-kappa beta (nf-kappab) and inducible nitric oxide synthase (inos), the olfactory and respiratory nasal mucosae, olfactory bulb, and cortic ...200212051555
canines as sentinel species for assessing chronic exposures to air pollutants: part 2. cardiac pathology.the principal objective of this study is to evaluate by light and electron microscopy (lm, em) the heart tissues in stray southwest and northeast metropolitan mexico city (swmmc, nemmc) dogs and compare their findings to those from 3 less polluted cities (cuernavaca, tlaxcala, and tuxpam). clinically healthy mongrel dogs, including 109 from highly polluted swmmc and nemmc, and 43 dogs from less polluted cities were studied. dogs residing in cities with lower levels of pollutants showed little or ...200111353144
presence of keratinophilic fungi with special reference to dermatophytes on the haircoat of dogs and cats in méxico and nezahualcoyotl cities.in order to study the presence of keratinophilic fungi with special reference to dermatophytes on the coat of dogs and cats living in the cities of mexico and nezahualcoyotl in the metropolitan area of mexico city, two hundred samples were collected from dogs and one hundred from cats by using the mackenzie's tooth brush technique, they were processed by routine mycological methods for dermatophyte fungi, results were analyzed by means of the statistical packages sas. there were isolated 67 and ...200010948828
[frequency of toxocara cati eggs in domestic cats in mexico city and the state of mexico].toxocariosis is a zoonosis which has been widely studied in dogs. however, not much is known about this parasitosis in cats. the aim of the present work was to determine the frequency of toxocara cati in domestic cats in mexico city and the state of mexico. feces of 660 domestic cats were studied by the faust concentration-floating test; 401 samples were from cats living in mexico city of which 308 lived in houses and 93 in apartments; 231 were from urban areas of the state of mexico and 28 from ...19979497534
a serological and bacteriological survey of canine brucellosis in mexico.using agglutination procedures, 203 human and 500 dog sera collected in mexico city were tested for canine brucellosis. blood samples from the 500 dogs also were cultured for brucella canis (b. canis). positive agglutination titers (1:100 or greater) were found in 27 (13.3%) of the human and 140 (28.0%) of the dog sera tested. b. canis was isolated from the blood of eight dogs. the disease was experimentally produced in susceptible dogs by inoculation with one of the isolated strains.1976954441
cysticercosis of the brain in dogs in méxico city.in a study of 150 dogs with neurologic disorders, on the prevalence and location of cysticercus cellulosae, 3 (2%) were parasitized and several c cellulosae were located in subarachnoid spaces, cerebral cortex, white matter, and ventricles of the brain. a chronic inflammatory exudate was found in host tissues surrounding the parasites. unlike human infected brains, basal granulomatous inflammation or cysticercus racemosus were not found in the canine brain tissues.1977931147
prevalence of anti-t. canis antibodies in stray dogs in mexico city.toxocara canis is a common intestinal helminth found in dogs. in humans, it is a cause of visceral larva migrans (vlm), a zoonosis rarely studied in mexico. the aim of this study is to examine, by means of the indirect haemaglutination test (ihat), the prevalence of antibodies of t. canis in the serum of stray dogs in mexico city.200818387747
[soil contamination with toxocara sp. eggs in public parks and home gardens from mexico city].due to de high number of stray dogs and cats which defecate in public places in mexico city (3 millions approximately), in addition to domestic dogs and cats, exists the potential risk to man of infection by toxocara sp. eggs. a study to determine the contamination frequency by toxocara sp. eggs in public parks, public flower beds, and home gardens in mexico city, distrito federal, was carried out in the 1995 first semester. fourteen hundred and five soil samples were collected from 156 public p ...19969302775
canines as sentinel species for assessing chronic exposures to air pollutants: part 1. respiratory pathology.a complex mixture of air pollutants is present in the ambient air in urban areas. people, animals, and vegetation are chronically and sequentially exposed to outdoor pollutants. the objective of this first of 2 studies is to evaluate by light and electron microscopy the lungs of mexico city dogs and compare the results to those of 3 less polluted cities in mexico: one hundred fifty-two clinically healthy stray mongrel dogs (91 males/61 females), including 43 dogs from 3 less polluted cities, and ...200111353143
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