scholarly journals Scuticociliatosis caused by Uronema sp. in ten different ornamental aquarium reef fish in Brazil

Author(s):  
Pedro Henrique Magalhães Cardoso ◽  
Luisa Zanolli Moreno ◽  
Andrea Micke Moreno ◽  
Simone de Carvalho Balian ◽  
Carolina Helena de Oliveira ◽  
...  

Abstract Scuticociliatosis, caused by an opportunistic ciliate protozoan, is responsible for significant economic losses in marine ornamental fish. This study reports the occurrence of Uronema spp., parasitizing ten species of marine reef fish at an ornamental fish wholesaler: Blue green damselfish (Chromis viridis), Vanderbilt’s Chromis (Chromis vanderbilti), Pennant coralfish (Heniochus acuminatus), Threespot angelfish (Apolemichthys trimaculatus), Goldspotted angelfish (Apolemichthys xanthopunctatus), Sea goldie (Pseudanthias squamipinnis), Orchid dottyback (Pseudochromis fridmani), Threadfin butterflyfish (Chaetodon auriga), Vagabond butterflyfish (Chaetodon vagabundus), and Bluecheek butterflyfish (Chaetodon semilarvatus). Diseased fish showed disorders such as hemorrhages and ulcerative lesions on the body surface. Histopathological analysis of the muscle, liver, gut, kidney, spleen, gills, and stomach revealed hemorrhages and degeneration of muscle fiber, vacuolar degeneration of hepatocyte, inflammatory process and granuloma in the liver, atrophy of intestinal villi, inflammatory process and granuloma in the kidney, melanomacrophage centers, as well as inflammatory process in the spleen, epithelial cells hyperplasia and granuloma formation in the gills, and vacuolar degeneration and eosinophils in the stomach. Due to the severity of the disease, it is necessary to implement biosecurity measures with rapid and accurate diagnosis to minimize the risk of economic losses caused by Uronema spp.

2017 ◽  
Vol 26 (4) ◽  
pp. 491-495 ◽  
Author(s):  
Pedro Henrique Magalhães Cardoso ◽  
Simone de Carvalho Balian ◽  
Eliana Reiko Matushima ◽  
Santiago Benites de Pádua ◽  
Maurício Laterça Martins

Abstract Scuticociliatosis, which is caused by an opportunistic ciliate protozoan, is responsible for significant economic losses in marine ornamental fish. This study reports the occurrence of Uronema sp., which was found to be parasitizing three species of marine reef fish imported into Brazil and maintained in quarantine: Vanderbilt’s Chromis (Chromis vanderbilti), blue-green damselfish (Chromis viridis), and sea goldie (Pseudanthias squamipinnis). During the quarantine period, some fish presented with behavioral disorders and hemorrhages and ulcerative lesions on the body surface. Histopathological analysis showed hemorrhages, inflammation comprising mononuclear and granular cells in the skeletal muscle, and necrosis of the skin and the secondary lamellae of the gills, and parasites were also observed in the renal capsule. The absence of transboundary measures available to prevent the occurrence of ornamental fish diseases is also discussed.


Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2316
Author(s):  
Daniel Mota-Rojas ◽  
Dehua Wang ◽  
Cristiane Gonçalves Titto ◽  
Jocelyn Gómez-Prado ◽  
Verónica Carvajal-de la Fuente ◽  
...  

Body-temperature elevations are multifactorial in origin and classified as hyperthermia as a rise in temperature due to alterations in the thermoregulation mechanism; the body loses the ability to control or regulate body temperature. In contrast, fever is a controlled state, since the body adjusts its stable temperature range to increase body temperature without losing the thermoregulation capacity. Fever refers to an acute phase response that confers a survival benefit on the body, raising core body temperature during infection or systemic inflammation processes to reduce the survival and proliferation of infectious pathogens by altering temperature, restriction of essential nutrients, and the activation of an immune reaction. However, once the infection resolves, the febrile response must be tightly regulated to avoid excessive tissue damage. During fever, neurological, endocrine, immunological, and metabolic changes occur that cause an increase in the stable temperature range, which allows the core body temperature to be considerably increased to stop the invasion of the offending agent and restrict the damage to the organism. There are different metabolic mechanisms of thermoregulation in the febrile response at the central and peripheral levels and cellular events. In response to cold or heat, the brain triggers thermoregulatory responses to coping with changes in body temperature, including autonomic effectors, such as thermogenesis, vasodilation, sweating, and behavioral mechanisms, that trigger flexible, goal-oriented actions, such as seeking heat or cold, nest building, and postural extension. Infrared thermography (IRT) has proven to be a reliable method for the early detection of pathologies affecting animal health and welfare that represent economic losses for farmers. However, the standardization of protocols for IRT use is still needed. Together with the complete understanding of the physiological and behavioral responses involved in the febrile process, it is possible to have timely solutions to serious problem situations. For this reason, the present review aims to analyze the new findings in pathophysiological mechanisms of the febrile process, the heat-loss mechanisms in an animal with fever, thermoregulation, the adverse effects of fever, and recent scientific findings related to different pathologies in farm animals through the use of IRT.


2021 ◽  
Vol 10 (4) ◽  
pp. 757
Author(s):  
Gianfranco Favia ◽  
Angela Tempesta ◽  
Giuseppe Barile ◽  
Nicola Brienza ◽  
Saverio Capodiferro ◽  
...  

The aim of this study is to report on the oral lesions detected in 123 patients diagnosed at the University Hospital of Bari from October 2020 to December 2020, focusing on the correlation of clinical and pathological features in order to purpose a new classification. Methods. General and specialistic anamnesis were achieved and oral examination was performed. The following data were collected: age/gender, general symptoms and form of Covid-19, presence and features of taste disorders, day of appearance of the oral lesions, type and features of oral lesions and day of beginning of therapies. If ulcerative lesions did not heal, biopsy was performed. Results. Many types of oral lesions were found and classified into four groups considering the timing of appearance and the start of the therapies. Early lesions in the initial stages of Covid-19 before the start of therapies was observed in 65.9% of the patients. In the histopathological analysis of four early lesions, thrombosis of small and middle size vessels was always noticed with necrosis of superficial tissues. Conclusion. The presence of oral lesions in early stages of Covid-19 could represent an initial sign of peripheral thrombosis, a warning sign of possible evolution to severe illness. This suggests that anticoagulant therapies should start as soon as possible.


Author(s):  
С. А. Рукавишникова ◽  
Т. А. Ахмедов ◽  
А.С. Пушкин ◽  
У.Р. Сагинбаев ◽  
Д.П. Пискунов ◽  
...  

Пневмония занимает лидирующие позиции по смертности среди всех инфекционных заболеваний. Установлено, что к достоверной группе риска по уровню заболеваемости и смертности от данной нозологической формы относятся лица старше 60 лет, причем с возрастом тяжесть протекания заболевания только возрастает. Согласно литературным данным, одной из причин снижения адаптационных возможностей лиц пожилого возраста является феномен «возрастного десинхроноза», проявляющийся значительными колебаниями параметров внутренней среды организма. Цель работы - сравнительный анализ коэффициентов внутри-и межиндивидуальной биологической вариации. Для этого проведено ретроспективное исследование клинического анализа крови у пациентов, страдающих пневмонией неуточненной этиологии, в разрезе трех возрастных групп - средней, пожилой и старческой. Обнаружены особенности биологической вариации в зависимости от возраста, выявленные отличия были обоснованы в соответствии с имеющимися теориями. Pneumonia is the leading mortality rate among all infectious diseases. It has been established that the reliable risk group for morbidity and mortality from this nosology includes persons over 60 years of age, and with age the severity of the disease only increases. According to literary data, one of the reasons for the decline in adaptation capabilities of older persons is the phenomenon of «age desinhronosis», which manifests itself in significant fluctuations in the parameters of the internal environment of the body. The purpose of this work was to compare the coefficients of intra- and interindividual biological variation. For this purpose, a retrospective study of clinical blood analysis in patients suffering from pneumonia of unspecified etiology was carried out in terms of three age groups: medium, elderly and senile. Features of biological variation depending on age have been found, the differences identified have been justified according to available theories.


1995 ◽  
Vol 16 (5) ◽  
pp. 163-167
Author(s):  
Keith R. Powell

The acute onset of eyelid redness and swelling in a child usually results in a quick visit to the doctor's office or an emergency room. The differential diagnosis for these signs ranges from relatively innocuous problems, such as allergy or an insect sting, to potentially vision-affecting or even life-threatening diseases, such as orbital cellulitis or cavernous vein thrombosis. The orbital contents often are protected from an inflammatory process by the orbital septum, a continuation of the periosteum of the bony orbit to the margins of both the upper and lower eyelids (Figure 1). An inflammatory process occurring in the structures superficial to the orbital septum is defined as preseptal or periorbital cellulitis; an inflammatory process in structures deep to the orbital septum is defined as orbital cellulitis of a specific complication thereof. Bacterial infection can cause both periorbital and orbital cellulitis. Another anatomic feature of importance is that the skin of the eyelid is the thinnest skin of the body. The subcutaneous tissue of the eyelid is composed of musculofibrous tissue and no fat. This combination of thin skin and loose subcutaneous tissues makes it possible for the eyelid to swell dramatically as it fills with edematous fluid. Epidemiology and Pathogenesis of Periorbital Cellulitis


Genes ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 591
Author(s):  
Tsung-Lin Tsai ◽  
Chen-Chang Su ◽  
Ching-Chi Hsieh ◽  
Chao-Nan Lin ◽  
Hui-Wen Chang ◽  
...  

In 2013, the outbreak of porcine epidemic diarrhea (PED) in Taiwan caused serious economic losses. In this study, we examined whether the variations of the cis-acting elements between the porcine epidemic diarrhea virus (PEDV) Taiwan (TW) strain and the prototype strain CV777 alter gene expression. For this aim, we analyzed the variations of the cis-acting elements in the 5’ and 3’ untranslated regions (UTRs) between the PEDV TW, CV777, and other reference strains. We also determined the previously unidentified transcription regulatory sequence (TRS), a sequence motif required for coronavirus transcription, and found that a nucleotide deletion in the TW strain, in comparison with CV777 strain, immediately downstream of the leader core sequence alters the identity between the leader TRS and the body TRS. Functional analyses using coronavirus defective interfering (DI) RNA revealed that such variations in cis-acting elements for the TW strain compared with the CV777 strain have an influence on the efficiency of gene expression. The current data show for the first time the evolution of PEDV in terms of cis-acting elements and their effects on gene expression, and thus may contribute to our understanding of recent PED outbreaks worldwide.


2015 ◽  
Vol 25 (2) ◽  
pp. 78-80
Author(s):  
Abdur Rahim ◽  
Md Moniruzzan ◽  
Rashedul Hassan ◽  
Monira Sarmin ◽  
Md Abdullah Yusuf ◽  
...  

Cutaneous leishmaniasis is rare in Bangladesh although very few case reports are seen since last few years. But Visceral Leishmaniasis (kala azar) and PKDL are common in this region. In country like ours where tuberculosis and leprosy are more prevalent Cutaneous Leishmaniasis is very likely to be mistreated as Cutaneous tuberculosis especially lupus vulgaris or leprosy. Cases of Cutaneous Leishmaniasis (CL) are usually imported to Bangladesh from other endemic countries. A patient from an endemic area of Cutaneous Leishmaniasis, a non-healing nodulo-ulcerative lesion on exposed part of the body, dermal infiltration with lymphocytes, histiocytes and plasma cells and demonstration of intracellular parasites in lesional skin establish the diagnosis of Cutaneous Leishmaniasis. We present a case of Cutaneous Leishmaniasis in a Bangladeshi adult working in Saudi Arabia for more than 15 years. He presented with multiple ulcerative lesions on nasal bridge, right ear lobule and dorsum of right ring finger. The patient’s clinical history, morphology of the lesions and laboratory analysis were consistent with Cutaneous Leishmaniasis, a rare entity for Bangladesh.Bangladesh J Medicine Jul 2014; 25 (2) : 78-80


2015 ◽  
Vol 57 (5) ◽  
pp. 421-426 ◽  
Author(s):  
Adriana Sierra Assencio Almeida BARBOSA ◽  
Suzana Madeira DIÓRIO ◽  
Silvia Cristina Barboza PEDRINI ◽  
Adauto José Ferreira NUNES ◽  
Andréa de Faria Fernandes BELONE ◽  
...  

SUMMARY The aim of this study was to evaluate the effects of the protein-calorie malnutrition in BALB/c isogenic mice infected with Lacazia loboi, employing nutritional and histopathological parameters. Four groups were composed: G1: inoculated with restricted diet, G2: not inoculated with restricted diet, G3: inoculated with regular diet, G4: not inoculated with regular diet. Once malnutrition had been imposed, the animals were inoculated intradermally in the footpad and after four months, were sacrificed for the excision of the footpad, liver and spleen. The infection did not exert great influence on the body weight of the mice. The weight of the liver and spleen showed reduction in the undernourished groups when compared to the nourished groups. The macroscopic lesions, viability index and total number of fungi found in the footpads of the infected mice were increased in G3 when compared to G1. Regarding the histopathological analysis of the footpad, a global cellularity increase in the composition of the granuloma was observed in G3 when compared to G1, with large numbers of macrophages and multinucleated giant cells, discrete numbers of lymphocytes were present in G3 and an increase was observed in G1. The results suggest that there is considerable interaction between Jorge Lobo's disease and nutrition.


2020 ◽  
Vol 16 (3) ◽  
pp. 320-324
Author(s):  
Lesya Besh ◽  
◽  
Oksana Matsyura ◽  
Olesya Besh ◽  
Olga Troyanovska ◽  
...  

Eczema herpeticum is a chronic dermatosis with erosive and ulcerative lesions of the skin in children of a predominantly young age. The clinical case presented in this article shows the severe course of herpesvirus infection combined with atopic dermatitis in a 5-month infant. A rash in the form of vesicles and pustules throughout the body with a predominant localisation on the skin of the face, the scalp, neck, and chest was found in the course of the examination of the child. Influence of infections on the course of allergic processes is an ambiguous and complicated issue. It has been proved that an infection can contribute to the development of allergies and exacerbate the course of already existing allergic inflammation. In recent years, an increasing number of studies have shown the preventive effect of infection on the development of allergic pathology in children, especially during the first years of life.


2019 ◽  
Vol 72 (1-2) ◽  
pp. 39-42
Author(s):  
Ivan Ergelasev ◽  
Ivan Kuhajda ◽  
Dejan Djuric ◽  
Danijela Kuhajda ◽  
Sinisa Maksimovic

Introduction. Fibrous dysplasia is a noninherited benign skeletal disorder associated with abnormal bone development. Single bone involvement, the monostotic form, accounts for 70 ? 80% of cases, while the polyostotic form, with multiple bone involvement, accounts for 20 ? 30% of cases. Cystic degeneration and occasional aneurysmal bone cyst formation may be found in fibrous dysplasia lesions, particularly in the costal lesions. Case Report. A 51-year-old man presented with acute shortness of breath after sustaining simple chest wall injury. Chest computed tomography showed multiple massive osteolytic rib lesions, as well as a massive left-sided pleural effusion with compression atelectasis of the lung parenchyma. Osteolytic lesions of the anterior 2nd and 7th thoracic vertebral body were found, along with a well defined osteolytic lesion in the body of the sternum. Video-assisted thoracoscopy of the left pleural space was performed and frozen sections, collected using endoscopic biopsy forceps of the cystic wall and solid parts of the tumors, were sent for ex tempore histopathological analysis. Results showed fibrous dysplasia with suspected malignancy. Talc pleurodesis was performed based on the obtained results. At present, the patient is asymptomatic with his daily routine uninterrupted by his medical condition. Conclusion. Treatment of pleural effusion caused by a cyst rupture of unresectable degenerated polyostotic fibrous dysplasia of the ribs represents a surgical challenge. Surgical drainage of the cysts followed by chemical pleurodesis seems to be a reasonable solution in cases where pulmonary functions are impacted by combined effects of pleural effusion and cystic compression.


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