RESUMO
AbstractAnimals have evolved a variety of adaptations to care for their body surfaces, such as grooming behavior, which keeps the integument clean, parasite-free, and properly arranged. Despite extensive research on the grooming of mammals, birds, and arthropods, the survival value of grooming has never been directly measured in natural populations. We monitored grooming and survival in a population of marked American kestrels (Falco sparverius) on San Salvador Island, Bahamas. We found a strong association between time spent grooming and survival over a 2-year period. The quadratic relationship we show is consistent with stabilizing natural selection on grooming time. To our knowledge, this is the first evidence for a correlation between grooming time and survival in a natural population. Grooming time may predict the survival of many animal taxa, but additional studies are needed to determine the shape and strength of the relationship among birds, mammals, and arthropods.
Assuntos
Artrópodes , Falconiformes , Animais , Asseio Animal , Aves , Bahamas , MamíferosRESUMO
Preference responses of cats for scratching fabrics commonly used on furniture were evaluated during four consecutive days in three Non-Governmental Organizations (NGOs) that rescue companion animals. Cats were grouped and their choices were registered at a group level (no individual identification). Daily choices for chenille, suede, synthetic leather, or waterproof grosgrain fabrics were evaluated for the cats' groups. A preference for chenille and non-preference for synthetic leather and waterproof grosgrain was found, independent of the NGO. In conclusion, although not using chenille does not assure that cats stop scratching furniture - especially if no other option to scratch is available - synthetic leather and waterproof grosgrain seem to be less attractive fabrics for these animals. Further studies are needed to investigate whether these findings apply to cats in a home scenario, when just one or a few individuals are usually present and only one type of fabric covering furniture is commonly available. Although we did not investigate the effect of providing scratching posts for these animals, we recommend such posts are available in the environment as scratching behavior is important to cats.
Assuntos
Comportamento Animal , Decoração de Interiores e Mobiliário , Animais , Comportamento Animal/fisiologiaRESUMO
Abstract Nitric oxide (NO) is an abundant mediator which is demonstrated to be involved in pruritus. Assuming that the increased NO also mediates chloroquine-induced pruritus, which is a frequent complication seen in the chronic chloroquine treatment, the current study aimed to investigate the effect of quercetin and the role of NO in chloroquine-induced pruritus in C57BL/6 mice. Model was created with subcutaneous chloroquine (400µg/site) injection to the nape of the mice. Effect of quercetin and role of NO were investigated with administration of quercetin, and co-administration with L-NAME, 7-NI and L-arginine before chloroquine injection. Locomotor activity was assessed by activity cage and number of the scratching bouts after chloroquine injection was recorded for 30 minutes. Our results show that quercetin significantly reduced scratching bouts at the doses of 10, 20, 40 and 80 mg/kg. Locomotor activity was decreased at the 40 and 80 mg/kg doses of quercetin. Additionally, decrease of the number of scratching bouts by quercetin prevented by L-arginine treatment, while L-NAME and 7-NI enhanced the anti-pruritic effect of sub-effective doses of quercetin. Therefore, our study demonstrated that acute injection of quercetin significantly diminished chloroquine-induced scratching behavior, and this effect is partly mediated by inhibition of neuronal nitric oxide synthase enzyme.
Assuntos
Animais , Masculino , Camundongos , Prurido/induzido quimicamente , Quercetina/efeitos adversos , Cloroquina/administração & dosagem , Óxido Nítrico/agonistas , Atividade MotoraRESUMO
Self-directed behavior, such as self-scratching (hereafter, scratching), occurs in several taxa across the animal kingdom, including nonhuman primates. There is substantial evidence that scratching is an indicator of anxiety-like emotions in a variety of nonhuman primate species. Despite its importance as a window into emotional states, few studies have investigated scratching in Platyrrhines. We investigated scratching patterns of 24 Geoffroy's spider monkeys (Ateles geoffroyi) belonging to a group living in the Otoch Ma'ax Yetel Kooh protected area in the Yucatàn peninsula (Mexico). We assessed whether scratching could be used as an indicator of anxiety levels in this species by testing predictions based on contexts and behaviors associated with risk and uncertainty. We found no effect of the subject's sex and age, subgroup size, male presence, and the occurrence of fusions between subgroups on scratching rates. Similarly, we found no effect of infant proximity on their mother's scratching rates. Supporting our prediction, we found evidence that isolation from conspecifics affected scratching rates as individuals scratched more frequently the more time they spent isolated. Being in proximity with a partner with a relationship characterized by uncertainty affected scratching rates as individuals scratched more frequently when in proximity with a partner with whom they engaged in embraces (an indicator of uncertainty) than when in proximity with a partner with whom they did not exchange embraces. Our study provides insight into the factors affecting scratching in Geoffroy's spider monkeys, suggesting that scratching may indicate anxiety in this species at least in some contexts and thus opening a window into the emotional experience of another Platyrrhine monkey species.
Assuntos
Ansiedade , Ateles geoffroyi , Animais , Ansiedade/diagnóstico , Ateles geoffroyi/psicologia , Feminino , Masculino , MéxicoRESUMO
This study aimed to present a model of post-scratching locomotion with two intermixed central pattern generator (CPG) networks, one for scratching and another for locomotion. We hypothesized that the rhythm generator layers for each CPG are different, with the condition that both CPGs share their supraspinal circuits and their motor outputs at the level of their pattern formation networks. We show that the model reproduces the post-scratching locomotion latency of 6.2 ± 3.5 s, and the mean cycle durations for scratching and post-scratching locomotion of 0.3 ± 0.09 s and 1.7 ± 0.6 s, respectively, which were observed in a previous experimental study. Our findings show how the transition of two rhythmic movements could be mediated by information exchanged between their CPG circuits through routes converging in a common pattern formation layer. This integrated organization may provide flexible and effective connectivity despite the rigidity of the anatomical connections in the spinal cord circuitry.
RESUMO
Yawning is a stereotyped behavioral pattern characterized by wide opening of the mouth associated with deep inspiration followed by short expiration. All vertebrate species yawn, but with low frequencies. We obtained two sublines of Sprague-Dawley (SD) rats by a strict inbreeding process: one with a high-yawning frequency (HY) of 20 yawns/h, which is one order of magnitude higher with respect to the low-yawning frequency (LY) subline, with 2 yawns/h. Outbred SD rats had a yawning frequency of 1 yawn/h. HY dams had a different organization of maternal care with respect to that displayed by LY and SD dams because HY dams constructed lower quality nests and had more re-retrieving and atypical retrieving. The aim of this study was to analyze the changes in maternal care using in- and cross-fostering between the sublines and SD dams and to measure spontaneous and dopaminergic-induced yawning, penile erections, grooming and scratching bouts. We also measured the expression of dopamine D2 receptors in the striatum using Western blot analysis. Our results showed that HY male rats reared by SD or LY dams did not significantly differ in yawning frequencies with respect to HY male rats reared by mothers of their own phenotype. Maternal care did not differ between sublines and SD dams independent of the litter they reared. However, LY rats reared by HY dams showed a significant increase in the number of spontaneous penile erections. Importantly, in-fostered HY male rats had the highest number of yawns induced by systemic administration of (-)-quinpirole supporting that higher maternal care display can influence the frequency of dopaminergic-induced yawning. In fact HY male rats in all conditions yawned more than did LY and SD male rats independent of the dam that raised them supporting a strong influence of genetic background. However SD male rats raised by LY dams showed significantly increased the dopamine D2 receptor expression. In conclusion, maternal care and the environmental nest conditions during the lactation period did not change the phenotypic characteristics of the yawning sublines supporting that their genetic background is fundamental for the expression of spontaneous or dopaminergic-induced yawning.
RESUMO
Background: The spinal cord's central pattern generators (CPGs) have been explained by the symmetrical half-center hypothesis, the bursts generator, computational models, and more recently by connectome circuits. Asymmetrical models, at odds with the half-center paradigm, are composed of extensor and flexor CPG modules. Other models include not only flexor and extensor motoneurons but also motoneuron pools controlling biarticular muscles. It is unknown whether a preferred model can explain some particularities that fictive scratching (FS) in the cat presents. The first aim of this study was to investigate FS patterns considering the aiming and the rhythmic periods, and second, to examine the effects of serotonin (5HT) on and segmental inputs to FS. Methods: The experiments were carried out first in brain cortex-ablated cats (BCAC), then spinalized (SC), and for the midcollicular (MCC) preparation. Subjects were immobilized and the peripheral nerves were used to elicit the Monosynaptic reflex (MR), to modify the scratching patterns and for electroneurogram recordings. Results: In BCAC, FS was produced by pinna stimulation and, in some cases, by serotonin. The scratching aiming phase (AP) initiates with the activation of either flexor or extensor motoneurons. Serotonin application during the AP produced simultaneous extensor and flexor bursts. Furthermore, WAY 100635 (5HT1A antagonist) produced a brief burst in the tibialis anterior (TA) nerve, followed by a reduction in its electroneurogram (ENG), while the soleus ENG remained silent. In SC, rhythmic phase (RP) activity was recorded in the soleus motoneurons. Serotonin or WAY produced FS bouts. The electrical stimulation of Ia afferent fibers produced heteronymous MRes waxing and waning during the scratch cycle. In MCC, FS began with flexor activity. Electrical stimulation of either deep peroneus (DP) or superficial peroneus (SP) nerves increased the duration of the TA electroneurogram. Medial gastrocnemius (MG) stretching or MG nerve electrical stimulation produced a reduction in the TA electroneurogram and an initial MG extensor burst. MRes waxed and waned during the scratch cycle. Conclusion: Descending pathways and segmental afferent fibers, as well as 5-HT and WAY, can change the FS pattern. To our understanding, the half-center hypothesis is the most suitable for explaining the AP in MCC.
Assuntos
Técnicas de Ablação , Córtex Cerebral/fisiologia , Estado de Descerebração/fisiopatologia , Nervos Periféricos/fisiologia , Reflexo Monosináptico/fisiologia , Medula Espinal/fisiologia , Técnicas de Ablação/métodos , Animais , Encéfalo/efeitos dos fármacos , Encéfalo/fisiologia , Encéfalo/cirurgia , Gatos , Córtex Cerebral/efeitos dos fármacos , Córtex Cerebral/cirurgia , Estimulação Elétrica/métodos , Neurônios Motores/efeitos dos fármacos , Neurônios Motores/fisiologia , Nervos Periféricos/efeitos dos fármacos , Reflexo Monosináptico/efeitos dos fármacos , Serotonina/administração & dosagem , Antagonistas da Serotonina/administração & dosagem , Medula Espinal/efeitos dos fármacos , Medula Espinal/cirurgia , Colículos Superiores/efeitos dos fármacos , Colículos Superiores/fisiologia , Colículos Superiores/cirurgiaRESUMO
Os problemas de comportamento apresentam importância não só no bem estar animal e na qualidade da relação humana-animal como também em saúde publica. Problemas de comportamento são uma das principais razões de abandono e subsequentemente o destino destes animais são abrigos ou até mesmo eutanásia. Além disso, a agressividade é um fator de risco para transmissão de zoonoses. Com o objetivo de avaliar a frequência de fatores relacionados a problemas de comportamento em gatos, foram coletadas informações de 229 gatos através de um questionário aplicado em tutores que aguardavam atendimento no Hospital de Clínicas Veterinária da Universidade Federal do Rio Grande do Sul (HCV-UFRGS). Dentre os comportamentos arranhadura em móveis foi o problema comportamental mais frequente (65,1%- IC 95%: 58,5-71,4%) seguido de agressividade (61,3%- IC 95%: 54,2-67,1%), eliminação inapropriada (37,1%- IC 95%: 31,3-42,1%) e vocalização excessiva (23,6%- IC 95%: 20,1-29,8%). Os dados foram analisados por regressão logística com uma função de ligação logit. De acordo com a análise univariada, a presença de um arranhador teve uma relação significativa protetiva, podendo contribuir para a redução do comportamento de arranhar móveis (risco relativo [RR]=0.31- IC 95%:0.19 - 0.53). Fêmeas e gatos assustados foram identificados com maior dificuldade de ter uma relação amigável com outros gatos RR=3.56 (IC 95%:1.78 - 7.11), RR=2.84( IC 95%:1.60 - 5.04) respectivamente também quanto maior o número de gatos na residência, maiores as chances de haver eliminação inapropriada. Os gatos castrados antes da puberdade apresentaram menos chances de desenvolver eliminação inapropriada RR=0.43 (IC 95%:0.21-0.88) e, finalmente, a vocalização excessiva foi relacionada com busca de atenção RR=2.62 (IC 95%:1.54 - 4.45). Os resultados desse estudo podem ajudar a prevenir problemas comportamentais em felinos domésticos.(AU)
Behavioral problems have importance not only in animal welfare and the quality of human-animal relationship, but also in public health. Behavior problems are a major reason of abandonment and subsequently the fate of these animals are shelters or even euthanasia. Furthermore, the aggressiveness is a risk factor for zoonoses transmission. In order to assess the frequency of factors related to behavior problems, information from 229 cats were collected through a questionnaire applied to tutors awaiting for care in clinics in Veterinary Hospital of the Federal University of Rio Grande do Sul (HCV-UFRGS). Among the behaviors scratch furniture was the most common problem (65.1% - CI95%: 58.5 to 71.4%), followed by aggressiveness (61.3% - CI95%: 54.2 to 67, 1%), inappropriate elimination (37.1% - 9 CI95%: 31.3 to 42.1%) and excessive vocalization (23.6% - CI95%: 20.1 to 29.8%). Data were analyzed by logistic regression with a logit link function. Univariate analysis identified the presence of scratching as significant protective factor, that may contribute to the reduction of scratching furniture (Relative risk [RR] = 0.31- CI95%: 0:19 to 0:53). Females and frightened cats were identified as having more difficulty were for friendly relationship with other cats RR = 3.56 (CI95%: 1.78-7.11), RR = 2.84 (95% CI: 1.60-5.04) respectively; also the higher the number of cats in a residence, the greater the chance for inappropriate elimination. Neutered cats before puberty had less chance of developing inappropriate elimination RR = 0:43 (CI95%: 0.21-0.88), and finally, excessive vocalization was related to obtain tutor attention RR = 2.62 (CI95%: 1:54 to 4:45). The results of this study may help prevent behavioral problems in domestic cats.(AU)
Assuntos
Animais , Gatos , Agressão , Comportamento Animal , Gatos/psicologia , Bem-Estar do Animal , Castração/veterináriaRESUMO
Os problemas de comportamento apresentam importância não só no bem estar animal e na qualidade da relação humana-animal como também em saúde publica. Problemas de comportamento são uma das principais razões de abandono e subsequentemente o destino destes animais são abrigos ou até mesmo eutanásia. Além disso, a agressividade é um fator de risco para transmissão de zoonoses. Com o objetivo de avaliar a frequência de fatores relacionados a problemas de comportamento em gatos, foram coletadas informações de 229 gatos através de um questionário aplicado em tutores que aguardavam atendimento no Hospital de Clínicas Veterinária da Universidade Federal do Rio Grande do Sul (HCV-UFRGS). Dentre os comportamentos arranhadura em móveis foi o problema comportamental mais frequente (65,1%- IC 95%: 58,5-71,4%) seguido de agressividade (61,3%- IC 95%: 54,2-67,1%), eliminação inapropriada (37,1%- IC 95%: 31,3-42,1%) e vocalização excessiva (23,6%- IC 95%: 20,1-29,8%). Os dados foram analisados por regressão logística com uma função de ligação logit. De acordo com a análise univariada, a presença de um arranhador teve uma relação significativa protetiva, podendo contribuir para a redução do comportamento de arranhar móveis (risco relativo [RR]=0.31- IC 95%:0.19 - 0.53). Fêmeas e gatos assustados foram identificados com maior dificuldade de ter uma relação amigável com outros gatos RR=3.56 (IC 95%:1.78 - 7.11), RR=2.84( IC 95%:1.60 - 5.04) respectivamente também quanto maior o número de gatos na residência, maiores as chances de haver eliminação inapropriada. Os gatos castrados antes da puberdade apresentaram menos chances de desenvolver eliminação inapropriada RR=0.43 (IC 95%:0.21-0.88) e, finalmente, a vocalização excessiva foi relacionada com busca de atenção RR=2.62 (IC 95%:1.54 - 4.45). Os resultados desse estudo podem ajudar a prevenir problemas comportamentais em felinos domésticos.(AU)
Behavioral problems have importance not only in animal welfare and the quality of human-animal relationship, but also in public health. Behavior problems are a major reason of abandonment and subsequently the fate of these animals are shelters or even euthanasia. Furthermore, the aggressiveness is a risk factor for zoonoses transmission. In order to assess the frequency of factors related to behavior problems, information from 229 cats were collected through a questionnaire applied to tutors awaiting for care in clinics in Veterinary Hospital of the Federal University of Rio Grande do Sul (HCV-UFRGS). Among the behaviors scratch furniture was the most common problem (65.1% - CI95%: 58.5 to 71.4%), followed by aggressiveness (61.3% - CI95%: 54.2 to 67, 1%), inappropriate elimination (37.1% - 9 CI95%: 31.3 to 42.1%) and excessive vocalization (23.6% - CI95%: 20.1 to 29.8%). Data were analyzed by logistic regression with a logit link function. Univariate analysis identified the presence of scratching as significant protective factor, that may contribute to the reduction of scratching furniture (Relative risk [RR] = 0.31- CI95%: 0:19 to 0:53). Females and frightened cats were identified as having more difficulty were for friendly relationship with other cats RR = 3.56 (CI95%: 1.78-7.11), RR = 2.84 (95% CI: 1.60-5.04) respectively; also the higher the number of cats in a residence, the greater the chance for inappropriate elimination. Neutered cats before puberty had less chance of developing inappropriate elimination RR = 0:43 (CI95%: 0.21-0.88), and finally, excessive vocalization was related to obtain tutor attention RR = 2.62 (CI95%: 1:54 to 4:45). The results of this study may help prevent behavioral problems in domestic cats.(AU)
Assuntos
Animais , Gatos , Agressão , Comportamento Animal , Gatos/psicologia , Bem-Estar do Animal , Castração/veterináriaRESUMO
In brain cortex-ablated cats (BCAC), hind limb motoneurons activity patterns were studied during fictive locomotion (FL) or fictive scratching (FS) induced by pinna stimulation. In order to study motoneurons excitability: heteronymous monosynaptic reflex (HeMR), intracellular recording, and individual Ia afferent fiber antidromic activity (AA) were analyzed. The intraspinal cord microinjections of serotonin or glutamic acid effects were made to study their influence in FL or FS During FS, HeMR amplitude in extensor and bifunctional motoneurons increased prior to or during the respective electroneurogram (ENG). In soleus (SOL) motoneurons were reduced during the scratch cycle (SC). AA in medial gastrocnemius (MG) Ia afferent individual fibers of L6-L7 dorsal roots did not occur during FS Flexor digitorum longus (FDL) and MG motoneurons fired with doublets during the FS bursting activity, motoneuron membrane potential from some posterior biceps (PB) motoneurons exhibits a depolarization in relation to the PB (ENG). It changed to a locomotor drive potential in relation to one of the double ENG, PB bursts. In FDL and semitendinosus (ST) motoneurons, the membrane potential was depolarized during FS, but it did not change during FL Glutamic acid injected in the L3-L4 spinal cord segment favored the transition from FS to FL During FL, glutamic acid produces a duration increase of extensors ENGs. Serotonin increases the ENG amplitude in extensor motoneurons, as well as the duration of scratching episodes. It did not change the SC duration. Segregation and motoneurons excitability could be regulated by the rhythmic generator and the pattern generator of the central pattern generator.
Assuntos
Potencial Evocado Motor , Locomoção , Neurônios Motores/fisiologia , Músculo Esquelético/fisiologia , Tratos Piramidais/fisiologia , Animais , Gatos , Descorticação Cerebral , Pavilhão Auricular/inervação , Pavilhão Auricular/fisiologia , Feminino , Ácido Glutâmico/farmacologia , Extremidade Inferior/inervação , Extremidade Inferior/fisiologia , Masculino , Córtex Motor/fisiologia , Neurônios Motores/efeitos dos fármacos , Músculo Esquelético/inervação , Tratos Piramidais/efeitos dos fármacos , Reflexo Monosináptico , Serotonina/farmacologiaRESUMO
The present study investigated the effects of pharmacological spinal inhibition of voltage-gated calcium channels (VGCC) in mouse pruritus. The epidural administration of P/Q-type MVIIC or PhTx3.3, L-type verapamil, T-type NNC 55-0396 or R-type SNX-482 VGCC blockers failed to alter the scratching behavior caused by the proteinase-activated receptor 2 (PAR-2) activator trypsin, injected into the mouse nape skin. Otherwise, trypsin-elicited pruritus was markedly reduced by the spinal administration of preferential N-type VGCC inhibitors MVIIA and Phα1ß. Time-course experiments revealed that Conus magus-derived toxin MVIIA displayed significant effects when dosed from 1h to 4h before trypsin, while the anti-pruritic effects of Phα1ß from Phoneutria nigriventer remained significant for up to 12h. In addition to reducing trypsin-evoked itching, MVIIA or Phα1ß also prevented the itching elicited by intradermal (i.d.) injection of SLIGRL-NH2, compound 48/80 or chloroquine, although they did not affect H2O2-induced scratching behavior. Furthermore, the co-administration of MVIIA or Phα1ß markedly inhibited the pruritus caused by the spinal injection of gastrin-releasing peptide (GRP), but not morphine. Notably, the epidural administration of MVIIA or Phα1ß greatly prevented the chronic pruritus allied to dry skin model. However, either tested toxin failed to alter the edema formation or neutrophil influx caused by trypsin, whereas they significantly reduced the c-Fos activation in laminas I, II and III of the spinal cord. Our data bring novel evidence on itching transmission mechanisms, pointing out the therapeutic relevance of N-type VGCC inhibitors to control refractory pruritus.
Assuntos
Antipruriginosos/farmacologia , Bloqueadores dos Canais de Cálcio/farmacologia , Canais de Cálcio Tipo N/metabolismo , Prurido/tratamento farmacológico , Medula Espinal/efeitos dos fármacos , Doença Aguda , Animais , Doença Crônica , Modelos Animais de Doenças , Relação Dose-Resposta a Droga , Masculino , Camundongos , Proteínas Proto-Oncogênicas c-fos/metabolismo , Prurido/fisiopatologia , Pele/imunologia , Venenos de Aranha/farmacologia , Medula Espinal/fisiopatologia , Fatores de Tempo , TripsinaRESUMO
Spontaneous cord dorsum potentials (spontaneous CDPs) are produced by the activation of dorsal horn neurons distributed along the L4 to S1 spinal cord segments, in Rexed's laminae III-VI, in the same region in which there are interneurons rhythmically bursting during fictive scratching in cats. An interesting observation is that spontaneous CDPs are not rhythmically superimposed on the sinusoidal CDPs generated during fictive scratching episodes, thus suggesting that the interneurons producing both types of CDPs belong to different spinal circuits. In order to provide experimental data to support this hypothesis, we recorded unitary activity of neurons in the L6 spinal cord segment. We found that the neurons firing rhythmically during the sinusoidal CDPs associated with the extensor, flexor or intermediate phases of scratching were not synchronized with the spontaneous CDPs. Moreover, we found that the neurons firing during the spontaneous CDPs were not synchronized with the sinusoidal CDPs. These results suggest that the neurons involved in the occurrence of spontaneous CDPs are not part of the spinal cord central pattern generators (CPGs). This study will be relevant for understanding the relationships between the spinal cord neuronal populations firing spontaneously and the CPGs, in the intact and injured spinal cord.
Assuntos
Geradores de Padrão Central/fisiologia , Atividade Motora/fisiologia , Neurônios/fisiologia , Medula Espinal/fisiologia , Animais , Gatos , EletrofisiologiaRESUMO
The sporotrichosis is one subcutaneous mycosis, produced by the dimorphic fungi Sporothrix schenckii. The present study describes the occurrence of feline sporotrichosis in Pelotas city, RS, Brazil. The disease was transmitted to an attendAnt of the veterinary clinic. The transmission was caused by scratching of the infected animal. The feline showed deformity of the nasal plane and cutaneous lesions, and the attendAnt presented one single ulcerated lesion on the dorsal left metacarpus. The mycological diagnostic was made by eschaps and/or exsudate from the feline and the attendAnt. The samples were cultivated on agar Sabouraud dextrose with chloramphenicol at 25 and 37°C during ten days. As S. schenckii was isolated from the samples, the diagnostic of disseminated cutaneous sporotrichosis by the feline and cutaneous localized sporotrichosis by the clinician, was confirmed. This note has the aim to alert small animals clinicians for the existence of sporotrichosis, and the high transmission risk by bites and/or scratch of infected animals.
A esporotricose é uma micose subcutânea, causada pelo fungo dimórfico Sporothrix schenckii. O presente estudo descreve a ocorrência de esporotricose felina na cidade de Pelotas (Rio Grande do Sul - Brasil), e a transmissão para um atendente da clínica veterinária, ocasionada pela arranhadura do animal doente. O felino apresentava deformação do espelho nasal e lesões cutâneas, enquanto o humano apresentava uma lesão ulcerada na região metacarpiana dorsal esquerda. Foram colhidas crostas e/ou exsudato das lesões do felino e do atendente para diagnóstico micológico, os quais foram cultivados em ágar Sabouraud dextrose acrescido de cloranfenicol e incubados a 25 e 37°C, durante 10 dias. O isolamento do S. schenckii confirmou o diagnóstico clínico de esporotricose cutânea disseminada no felino e cutânea localizada no atendente. Esta nota pretende alertar profissionais relacionados à clínica de pequenos animais quanto à existência da doença e o alto risco de transmissão pela mordedura e/ou arranhadura de animais infectados.
RESUMO
The sporotrichosis is one subcutaneous mycosis, produced by the dimorphic fungi Sporothrix schenckii. The present study describes the occurrence of feline sporotrichosis in Pelotas city, RS, Brazil. The disease was transmitted to an attendAnt of the veterinary clinic. The transmission was caused by scratching of the infected animal. The feline showed deformity of the nasal plane and cutaneous lesions, and the attendAnt presented one single ulcerated lesion on the dorsal left metacarpus. The mycological diagnostic was made by eschaps and/or exsudate from the feline and the attendAnt. The samples were cultivated on agar Sabouraud dextrose with chloramphenicol at 25 and 37°C during ten days. As S. schenckii was isolated from the samples, the diagnostic of disseminated cutaneous sporotrichosis by the feline and cutaneous localized sporotrichosis by the clinician, was confirmed. This note has the aim to alert small animals clinicians for the existence of sporotrichosis, and the high transmission risk by bites and/or scratch of infected animals.
A esporotricose é uma micose subcutânea, causada pelo fungo dimórfico Sporothrix schenckii. O presente estudo descreve a ocorrência de esporotricose felina na cidade de Pelotas (Rio Grande do Sul - Brasil), e a transmissão para um atendente da clínica veterinária, ocasionada pela arranhadura do animal doente. O felino apresentava deformação do espelho nasal e lesões cutâneas, enquanto o humano apresentava uma lesão ulcerada na região metacarpiana dorsal esquerda. Foram colhidas crostas e/ou exsudato das lesões do felino e do atendente para diagnóstico micológico, os quais foram cultivados em ágar Sabouraud dextrose acrescido de cloranfenicol e incubados a 25 e 37°C, durante 10 dias. O isolamento do S. schenckii confirmou o diagnóstico clínico de esporotricose cutânea disseminada no felino e cutânea localizada no atendente. Esta nota pretende alertar profissionais relacionados à clínica de pequenos animais quanto à existência da doença e o alto risco de transmissão pela mordedura e/ou arranhadura de animais infectados.