Blood differential count and effect of haemoparasites in wild populations of Pyrenean lizard Iberolacerta aurelioi (Arribas, 1994)

Martinez‐Silvestre, Albert; Arribas, Oscar J.

doi:10.11160/bah.12007

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…Some reports in lizards show the presence of high numbers of immature RBCs in peripheral blood associated with blood parasite infections (Martínez-Silvestre, Mateo, Silveira, & Bannert, 2001;Martinez-Silvestre & Arribas, 2014). Intracellular blood parasites, like Hepatozoon, Dactylosoma, Karyolysus, and Plasmodium, may be related to anemia due to the disruption of the RBCs caused by some of the parasites' life stages.…”

Section: Discussionmentioning

confidence: 99%

Do blood parasites increase immature erythrocytes and mitosis in amphibians?

et al. 2021

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Introduction: In amphibians, blood may act as a hematopoietic tissue. However, the knowledge concerning hematological features is scarce, there is not much information that allows an analysis about the possible explanations of this physiological feature. Objective: This study aimed to evaluate the relationship between immature red blood cells (RBCs) mitosis and the presence of blood parasites in amphibians. Methods: We sampled 116 amphibians (31 species) in six Colombian localities. Blood was taken by cardiac puncture or maxillary vein puncture. Smears were prepared, fixed, and Giemsa stained for microscopical analysis. The variables analyzed were the percentage of immature RBCs, mitotic cells in peripheral blood, and blood parasite infection. Data were analyzed using Wilcoxon's rank test and exact Fisher statistical tests. Results: Sixty-two individuals showed mitosis in peripheral blood, and these mitotic RBCs shared morphological features with immature RBCs. Overall, parasite prevalence was 30.1 %, distributed as follows: Trypanosoma (24.1 %), Hepatozoon-like (6 %), Dactylosoma (4.3 %), Karyolysus-like (0.9 %), and Filarioidea (2.6 %). A positive association between the percentage of immature RBCs and the presence of mitotic RBCs was found, and also between the blood parasite infection and the percentage of immature RBCs. Conclusions: In this study, we found that the presence of blood parasites, immature RBCs, and RBCs mitosis are frequent events in amphibians' peripheral blood, and our analysis suggests an association between those features. Thus, the release of immature RBCs and the mitosis of those cells in peripheral blood may be a physiological response to blood parasite infection. Further studies characterizing hematology in amphibians and wildlife, in general, are desirable.

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Section: Discussionmentioning

confidence: 99%

Do blood parasites increase immature erythrocytes and mitosis in amphibians?

et al. 2021

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“…anaemia, leucocytosis, liver/spleen enlargement). Moreover, endemic parasite presence has been used in terms of haematology and blood cytology, which are important tools to assess physiological adaptations of the hosts to special environmental conditions (Martínez-Silvestre and Arribas, 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Haemosporidian infections in wild populations of Podarcis muralis from the Italian Peninsula

et al. 2022

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Parasites can significantly influence the ecology, behaviour and physiology of their hosts sometimes with remarkable effects on their survivorship. However, endemic parasites or those not associated with obvious clinical disease have been partly neglected in the past decades comparatively to the most pathogenic ones. Apicomplexa are an important example of blood parasites that have been broadly investigated, although it can be difficult to determine the effects of infections at the population level, especially in widespread species. Such is the case of the common wall lizard (Podarcis muralis). We investigated 61 populations across Italy between 2008 and 2017 and recorded snout–vent length, latitude, date of collection and took blood samples for parasite count. We modelled parasite prevalence and load in a Bayesian framework. Parasites were present in all populations but 1 and in 13 of them all individuals were parasitized. We recorded almost identical responses for probability of infection and parasite load in both sexes, directly proportional to body size and inversely proportional to latitude, with a peak in cooler months. Therefore, haemosporidians can be very common in P. muralis, although their presence can vary significantly. Moreover, such a high prevalence makes it necessary to investigate to what extent haemosporidians affect hosts' survivorship, taking into consideration abiotic and biotic factors such as temperature, hormone levels and immune response.

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Lagartija pallaresa – Iberolacerta aurelioi (Arribas, 1994)

Arribas¹

2015

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Blood differential count and effect of haemoparasites in wild populations of Pyrenean lizard Iberolacerta aurelioi (Arribas, 1994)

Cited by 3 publications

References 13 publications

Do blood parasites increase immature erythrocytes and mitosis in amphibians?

Do blood parasites increase immature erythrocytes and mitosis in amphibians?

Haemosporidian infections in wild populations of Podarcis muralis from the Italian Peninsula

Lagartija pallaresa – Iberolacerta aurelioi (Arribas, 1994)

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