Annual variation in lung associated immunity and season dependent invasion of Alternaria alternata in lungs of Indian jungle bush quail, Perdicula asiatica

Haldar, Chandana

doi:10.1163/157075611x618237

Cited by 6 publications

(1 citation statement)

References 39 publications

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“…is rarely reported. In Indian jungle bush quail ( Perdicula asiatica ), A. alternata causes a season-dependent lung invasion, causing severe disease when the lowest immune status occurs ( 50 ). In psittacine birds, only a case is reported, describing a dermal infection of A. alternata in an Indian ring-necked parakeet ( Psittacula krameri ), with feather picking and a skin lesion on the wing ( 51 ).…”

Section: Discussionmentioning

confidence: 99%

Atypical Mycosis in Psittacine Birds: A Retrospective Study

et al. 2022

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A retrospective study was conducted on parrots submitted from necropsy to the Department of Veterinary Pathology, School of Biosciences and Veterinary, University of Camerino, Italy, from 2007 to 2018. From a total of 2,153 parrots examined at post-mortem, four cases were diagnosed with atypical mycosis and were considered for determination of the fungus species by PCR. A Fischer's lovebird (Agapornis fischeri), Peach-faced lovebirds (Agapornis roseicollis), and two Blue and Gold Macaws (Ara ararauna) from four different aviaries died after some days of lethargy and ruffled feathers. Records of gross necropsy and histopathological exams (H&E, PAS, and Grocott stain) were described and biomolecular analyses were carried out. No specific gross lesions were appreciated at necropsy, while histopathology evidenced a systemic mycosis in several organs, particularly in the lungs. In affected organs, broad and non-septate hyphae, suggestive of mycoses, were observed. Molecularly, Mucor racemosus (Fischer's lovebird) and M. circinelloides (Peach-faced lovebirds) were identified from formalin-fixed and paraffin-embedded (FFPE) lung and liver tissue. In addition, Alternaria alternata and Fusicladium spp. (respectively in male and female Blue and Gold macaws) were identified in FFPE tissue from several organs; whereas the role of Mucor spp. as true pathogens is well-demonstrated, and the behavior of A. alternata and Fusicladium spp. in macaws as opportunistic pathogens have been discussed. To our knowledge, this report is the first one reporting mucormycosis caused by M. racemosus and M. circinelloides in lovebirds, and A. alternata and Fusicladium spp. in macaws.

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Section: Discussionmentioning

confidence: 99%

Atypical Mycosis in Psittacine Birds: A Retrospective Study

et al. 2022

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Experimentally induced stress, oxidative load and changes in immunity in a tropical wild bird, Perdicula asiatica: involvement of melatonin and glucocorticoid receptors

Yadav

Haldar

2014

Zoology

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Trade‐off expression of melatonin receptor subtypes (Mel1a and Mel1b) and androgen receptor in lung of a tropical bird, Perdicula asiatica

Singh¹,

Haldar

2020

Anat Histol Embryol

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The role of circulatory steroid hormone along with melatonin in lung of any seasonally breeding bird has never been explored so far. This could be interesting because steroid hormones are immunosuppressive while melatonin is immunostimulatory in nature. In our present study, we report the effect of exogenous melatonin and testosterone on expression of melatonin receptor subtypes (Mel1a and Mel1b) and androgen receptor in lung of a tropical bird Perdicula asiatica. Birds were collected from vicinity of Varanasi and acclimatized in laboratory with sufficient food and water. The birds were treated with melatonin and testosterone at dose of 25 µg/100 g B.wt./day and 1 mg/100 g B.wt./day, respectively, for 28 days. At the end of the experiment, the birds were sacrificed and lung tissue and blood sample were collected for immunohistochemistry, Western blot analysis and hormonal assay. Testosterone treatment increased circulatory testosterone and upregulated expression of androgen receptors whereas downregulated expression of melatonin receptor subtypes Mel1a and Mel1b. Melatonin administration increased peripheral melatonin and upregulated expression of melatonin receptor subtypes Mel1a and Mel1b while downregulated androgen receptor. Thus, our results suggest that a trade‐off relationship between melatonin and testosterone exists in regulation of their receptors in lung of Perdicula asiatica.

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Annual variation in lung associated immunity and season dependent invasion of Alternaria alternata in lungs of Indian jungle bush quail, Perdicula asiatica

Cited by 6 publications

References 39 publications

Atypical Mycosis in Psittacine Birds: A Retrospective Study

Atypical Mycosis in Psittacine Birds: A Retrospective Study

Experimentally induced stress, oxidative load and changes in immunity in a tropical wild bird, Perdicula asiatica: involvement of melatonin and glucocorticoid receptors

Trade‐off expression of melatonin receptor subtypes (Mel1a and Mel1b) and androgen receptor in lung of a tropical bird, Perdicula asiatica

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