scholarly journals Multiorgan pathoanatomical manifestation of spontaniously ocuring intestinal yersiniosis in dogs

2020 ◽  
Vol 23 (11) ◽  
pp. 7-15
Author(s):  
Grеgory Zon ◽  
Illia Zon ◽  
Lyudmila Ivanovskaya

The paper presents materials on pathomorphological changes in the organs of dogs with intestinal yersiniosis, the disease which is still considered to be predominately asymptomatic. The aim of the study was to determine the main pathomorphological changes in dogs with spontaneous intestinal yersiniosis caused by Y. enterocolitica. To achieve this goal, pathological and pathomorphological studies were performed on 12 corpses of dogs aged 8-22 months between 2017-2020. The specimens had a laboratory-confirmed diagnosis of intestinal yersiniosis as a monoinfection, and three of the corpses had complications of infectious hepatitis and two corpses with complications of pseudomonosis. The material for the study was extracted during an autopsy of dogs that died due to acute and rarely chronic spontaneous intestinal yersiniosis, as well as when it was complicated by other infectious diseases. Fixation of pathological material (pieces of lungs, liver, spleen, lymph nodes, stomach, small and large intestine, kidneys) and the manufacturing of paraffin sections were performed according to generally accepted methods. The resulting sections were stained with Karatsi hematoxylin and aqueous solution of eosin. The most significant changes were found in the organs of the gastrointestinal tract (congestive catarrhal-hemorrhagic processes in the acute course and atrophic and productive in the chronic), liver (protein and fat dystrophies, local areas of necrobiosis and cytolysis of hepatocytes), spleen in the kidneys (signs of granular and hyaline-drop dystrophy of the epithelium of the tubules and dystrophic-atrophic processes in the glomeruli), characteristic of septicemia and toxemia. Based on the analysis of literature sources, the results of the study, it was found that intestinal yersiniosis of dogs is a disease that has multiorgan pathology, but due to the similarity of clinical manifestations and lack of specific diagnostic laboratories it is often disguised as other bacterial and viral diseases. The complex of pathomorphological changes in the organs of the deceased animals, taking into account the results of serological and pathological studies, can be considered a basic protocol for diagnosing intestinal yersiniosis in dogs

1983 ◽  
Vol 15 (5) ◽  
pp. 1-15 ◽  
Author(s):  
Victor J Cabelli

A review of the available information from case and outbreak reports and the results of prospective and retrospective studies revealed that the potential for the spread of viral diseases by the use of fecally contaminated drinking and recreational water has only been realized for infectious hepatitis and viral gastroenteritis. These two, however, are the most serious and prevalent, respectively, of the water-related diseases. A model is described for predicting the beach specific, swimming-associated rates and annual number of cases of gastroenteritis. The inputs are the swimming-associated, gastroenteritis rate-bathing water enterococcus density regression equation developed from the USEPA prospective epidemiologic-microbiologic studies and the distribution of enterococcus density estimates and annual number of swimmers at the beach in question. In general, the gastroenteritis rates predicted from the enterococcus model were less than those from the corresponding E. coli model. Detectable rates at the 75 percentile level and rates approaching or exceeding 5/1000 swimmers at the 90 percentile level were predicted for 7 and 14, respectively, of the 87 sampling station-beach associations. All but one of the fourteen stations were potentially impacted by known municipal wastewater discharges and two of the associated beaches were posted as unsafe for swimming. The inapplicability of the model to beaches impacted with small, immediate sources of fecal wastes or stormwater run-off is noted. The limitations in the use of findings from the analysis of outbreak reports in the evaluation and establishment of water quality criteria and, hence, the need for prospective, drinking water and shellfish epidemiological studies is discussed. The need for such studies also derives from the results of the bathing beach study in that they suggest that cases of gastroenteritis are occurring with acceptable drinking and shellfish growing waters. The need for tissue culture enumerative methods for the viral gastroenteritis agents and methodology for determining the biological decay coefficients for these agents and their indicators is noted.


PEDIATRICS ◽  
1962 ◽  
Vol 30 (6) ◽  
pp. 862-874
Author(s):  
Robert J. Warren ◽  
Frederick C. Robbins

Although the control of infectious hepatitis leaves much to be desired, certain measures can be taken. When a specific source of infection can be identified, such as shellfish, or the parenteral introduction of infected serum or blood, epidemiologic control can be effective in eliminating the source of infection and the use of gammaglobulin may protect those already exposed. When transmission occurs by intimate contact, such as within the family or where sanitary measures cannot be employed, passive immunization should be initiated. There are no immediate prospects for active immunization.


Blood ◽  
1955 ◽  
Vol 10 (1) ◽  
pp. 62-75 ◽  
Author(s):  
W. CANNEMEYER ◽  
J. R. THOMPSON ◽  
M. R. LICHTENSTEIN

Abstract A severe form of hypersensitivity to para-aminosalicylic acid in patients with tuberculosis was studied. The blood picture, lymph node biopsies, and imprints are described. The similarities between this hypersensitivity to a simple chemical and infectious mononucleosis and infectious hepatitis are discussed. The possibility is suggested that some of the findings in viral diseases are due to hypersensitivity to chemical substances derived from the virus rather than to infection per se.


2014 ◽  
Vol 5 (1) ◽  
pp. 23-27
Author(s):  
L. V. Yashchuk ◽  
N. V. Cherevach ◽  
A. I. Vinnikov

Cats and dogs kept at home, as well as other animals, are susceptible to infectious diseases caused by pathogenic microorganisms, including viruses. Viral infections in urban environments are extremely common and cause severe diseases in domestic animals which often lead to death, resulting in high material and moral damages to owners of animals. Therefore, investigation of the prevalence of pathogens of viral diseases is very important in our time. The aim of this work is to define the indicators of spreading viral diseases of animals in Dnipropetrovsk, to analyze the seasonal spread of viral infections in animals, and influence of sex and breed on the frequency of disease manifestations. Materials for research were obtained on the basis of three veterinary clinics in Dnipropetrovsk. During the study, we used serological methods of diagnostics of clinical materials, namely ELISA and IHA. Immunosorbent assay was performed using the thermostatic shaker ST-3 and strip immunoassay analyzer Stat Fax 303 Plus. Also we used commercial test systems VetExpert CAV Ag and Feline VacciCheck ImmunoComb®, based on the immuno-chromatographic method. During clinical studies of 491 animals (268 cats and 223 dogs) it was found that the most common respiratory viral infections in cats were calicivirus infection and rhinotracheitis, while in dogs there were viral diseases of gastrointestinal tract, i.e. enteritis and hepatitis. Using IHA method, we revealed the antibodies to respiratory viruses in the blood of deseased cats: to calicivirus – in 95 cats, to rhinotracheitis – in 60 cats; by ELISA method we identified antigens of parvovirus, enteritis pathogen, in biological material of 61 dogs, by IHA we found antibodies to virus of infectious hepatitis in 49 individuals. Based on these data, it has been revealed that during the winter months the animals suffered mostly the respiratory viral infections (60%), and in spring there were increased occur-rence of enteritis, observed in all age groups of animals. From May, hepatitis started to appear and prevailed for all summer months, mixed with enteritis (about 50% of total number of cases). Hepatitis was recorded both in cats and dogs. By the fall, recurrence was observed for calicivirus and herpes virus infections in cats, and the cases of enteritis decreased, while hepatitis was recorded until mid-October. Such statistics is kept relatively constant. The research results can be applied in the practice of veterinary laboratories for the development of diagnostic measures and prevention of viral diseases in domestic animals, as well as in the prediction of dissemination of viral infections in animals in the near future.


2021 ◽  
pp. 22-26
Author(s):  
S. V. Orlova ◽  
E. A. Nikitina ◽  
E. V. Prokopenko ◽  
L. Yu. Volkova ◽  
A. N. Vodolazkaya

Thousands of studies have been conducted to study the new SARS-CoV-2 coronavirus, its infectious properties, transmission routes and all associated with the clinical manifestations and severity of COVID-19, especially with potential treatments. Lactoferrin is a member of the transferrin family, which is synthesized by epithelial cells of mammalian internal glands and is widely present in various secretory fluids such as milk, saliva, tears, and nasal secretions. Lactoferrin is one of the components of the innate humoral immunity, regulates the functions of immunocompetent cells and is a acute phase protein. Lactoferrin has strong antioxidant and anti-inflammatory properties. This review assesses the possibility of using lactoferrin as a supplement in immunocorrective therapy programs for viral diseases, including the novel coronavirus infection COVID-19.


2019 ◽  
Vol 317 (6) ◽  
pp. G793-G801 ◽  
Author(s):  
Elisa Boschetti ◽  
Carolina Malagelada ◽  
Anna Accarino ◽  
Juan R. Malagelada ◽  
Rosanna F. Cogliandro ◽  
...  

Gastrointestinal (GI) symptoms can originate from severe dysmotility due to enteric neuropathies. Current methods used to demonstrate enteric neuropathies are based mainly on classic qualitative histopathological/immunohistochemical evaluation. This study was designed to identify an objective morphometric method for paraffin-embedded tissue samples to quantify the interganglionic distance between neighboring myenteric ganglia immunoreactive for neuron-specific enolase, as well as the number of myenteric and submucosal neuronal cell bodies/ganglion in jejunal specimens of patients with severe GI dysmotility. Jejunal full-thickness biopsies were collected from 32 patients (22 females; 16–77 yr) with well-characterized severe dysmotility and 8 controls (4 females; 47–73 yr). A symptom questionnaire was filled before surgery. Mann-Whitney U test, Kruskal-Wallis coupled with Dunn’s posttest and nonparametric linear regression tests were used for analyzing morphometric data and clinical correlations, respectively. Compared with controls, patients with severe dysmotility exhibited a significant increase in myenteric interganglionic distance ( P = 0.0005) along with a decrease in the number of myenteric ( P < 0.00001) and submucosal ( P < 0.0004) neurons. A 50% reduction in the number of submucosal and myenteric neurons correlated with an increased interganglionic distance and severity of dysmotility. Our study proposes a relatively simple tool that can be applied for quantitative evaluation of paraffin sections from patients with severe dysmotility. The finding of an increased interganglionic distance may aid diagnosis and limit the direct quantitative analysis of neurons per ganglion in patients with an interganglionic distance within the control range. NEW & NOTEWORTHY Enteric neuropathies are challenging conditions characterized by a severe impairment of gut physiology, including motility. An accurate, unambiguous assessment of enteric neurons provided by quantitative analysis of routine paraffin sections may help to define neuropathy-related gut dysmotility. We showed that patients with severe gut dysmotility exhibited an increased interganglionic distance associated with a decreased number of myenteric and submucosal neurons, which correlated with symptoms and clinical manifestations of deranged intestinal motility.


Author(s):  
Emilio Bouza ◽  
◽  
Rafael Cantón Moreno ◽  
Pilar De Lucas Ramos ◽  
Alejandra García-Botella ◽  
...  

A high proportion of people who have suffered from COVID-19 report, after recovery from the acute phase of the disease, clinical manifestations, both subjective and objective, that continue beyond 3 weeks or even 3 months after the original clinical disease. There is still no agreed nomenclature to refer to this condition, but perhaps the most commonly used is post-COVID syndrome. The Scientific Committee on COVID of the Madrid College of Physicians (ICOMEM) has discussed this problem with a multidisciplinary approach in which internists, infectious disease specialists, psychiatrists, pneumologists, surgeons, geriatricians, pediatricians, microbiologists, family physicians and other specialists have participated, trying to gather the existing information and discussing it in the group. The clinical manifestations are very variable and range from simple fatigue to persistent fibrosing lung lesions with objective alterations of pulmonary function. Post-COVID syndrome seems to be particularly frequent and severe in adults who have required admission to Intensive Care Units and has a peculiar behavior in a very small group of children. The post-COVID syndrome, which undoubtedly exists, is at first sight not clearly distinguishable from clinical manifestations that which occur after other acute viral diseases and after prolonged stays in ICUs due to other diseases. Therefore, it offers excellent research opportunities to clarify its pathogenesis and possibly that of other related entities. It is possible that progressively there will be an increased demand for care among the millions of people who have suffered and overcome acute COVID for which the health authorities should design mechanisms for the agile management of care that will possibly require well-coordinated multidisciplinary groups. This paper, structured in questions on different aspects of the post-COVID syndrome, attempts to stage the current state of this problem


2020 ◽  
pp. 69-74
Author(s):  
N.V. Yanko ◽  
L.F. Kaskova ◽  
I.Yu. Vashchenko ◽  
S.Ch. Novikova ◽  
O.S. Pavlenkova

Viral diseases with oral manifestations are common in the practice of pedodontist, however, sometimes their diagnosis is complicated due to the similar clinical manifestations. A huge number of viruses are present in oral cavity, especially from Herpesviridae family, however, the most of them are asymptomatic. Cold, systemic diseases and stress provoke the activation of viruses with different clinical manifestations. Therefore, a dentist can be the first who diagnoses not only herpetic gingivostomatitis, but also other viral diseases. The aim of the article was to analyse the oral manifestations of viral diseases in children in order to optimize their diagnostics. This article analyses clinical cases and reviews of diseases in English in Google database from 2011 to May 2020 (and earlier publications) by Keywords: «herpetic gingivostomatitis», «recurrent aphthous stomatitis», «oral manifestations of infectious mononucleosis», «herpetic angina», «oral manifestations of cytomegalovirus infection», «recurrent herpetic gingivostomatitis», «oral manifestations of varicella virus», «oral manifestations of herpes zoster», «roseola infantum», «herpangina», «hand, foot and mouth disease», «oral manifestations of measles», «rubella», «oral manifestations of papillomavirus», and «oral manifestations of human immunodeficiency virus». Viruses which have oral manifestations were characterized by transmission. Mostly airborne viruses are represented by Herpesviridae family. The differential diagnosis of primary herpetic gingivostomatitis includes recurrent aphthous stomatitis which forms ulcers on non-keratinised oral mucosa without a vesicle phase. Recurrent herpetic infection doesn’t have difficulties in diagnostics, but could be complicated by erythema multiform with clear target lesions. Vesicles, erosions in oral cavity associated with vesicles on hear part of head help to distinguish chickenpox from herpetic infection. Compared to Herpes simplex virus infection, Herpes zoster has a longer duration, a more severe prodromal phase, unilateral vesicles and ulceration, with abrupt ending at the midline and postherpetic neuralgia. Roseola is characterized by small papules on skin and palate which appears when severe fever in prodromal period subsides and disappears after 1-2 days. Oral vesicles associated with foot and hand rush differentiate enterovirus stomatitis from chickenpox and roseola. The distribution of the lesions of herpangina (palate, tonsils) differentiates it from primary herpetic gingivostomatitis, which affects the gingivae. Comparing with roseola and rubella, measles has a bigger size of rush and specific oral localization on buccal mucosa. Mild fever and skin rush which appears on face and extensor surfaces of body and extremities help to distinguish rubella from measles and roseola. Viruses transmitted through biological liquids are represented in oral cavity by infectious mononucleosis and cytomegalovirus. The vesicles and ulcers on the tonsils and posterior pharynx in case of these infections can resemble herpetic stomatitis, but liver and spleen enlargement allows to exclude this diagnose; also cytomegalovirus erosions heal for long time. Cervical lymphoadenopathy differentiates them from herpetic angina. Laboratory diagnostics is based on detection of antibodies to virus or virus DNA in blood helps to make diagnosis of infectious mononucleosis and cytomegalovirus infections. Viruses transmitted through direct contact with mucosa and biological liquids represented by human papillomavirus (HPV) and human immunodeficiency virus (HIV). HPV in oral cavity represent by benign epithelial hyperplasia which might persist and transform to malignant. Therefore, histological examination plays important role in diagnostics of HPV. Oral manifestations such as candidiasis, herpes labialis, and aphthous stomatitis represent some of the first signs of HIV immunodeficiency. Oral lesions also associated with HIV in children are oral hairy leukoplakia, linear gingival erythema, necrotizing ulcerative gingivitis, and Kaposi’s sarcoma. Rapid necrotization and long-term healing of oral lesions help to suspect HIV and prescribe the blood test for the detection of antibodies to the virus. Oral mucosa is often the first to be affected by viral infections. A thorough anamnesis and examination is the key to accurate diagnostics of the most oral viral lesions and their adequate treatment. Biopsy, examination of antibodies to the virus in the blood or polymeraze-chain reaction to the virus in the bioptate or blood are performed in case of diagnostic difficulties. Laboratory methods had to use more widely for the diagnostics of recurrent or unclear lesions of the oral mucosa in children.


1975 ◽  
Vol 53 (13) ◽  
pp. 1338-1341 ◽  
Author(s):  
Michael Corlett ◽  
E. G. Kokko

A saturated solution of orseillin BB in 3% acetic acid and a 1% aqueous solution of crystal violet, in series, are an excellent differential staining combination for sections of ascomycetous fructifications. The technic stains a wide variety of fungus and host cells, often producing a vivid polychromatic effect and revealing considerable morphological and cytological detail; it is appropriate for microscope slides both of unfixed material mounted in water and of picric-acid-fixed paraffin sections.


Sign in / Sign up

Export Citation Format

Share Document