scholarly journals Microfilaremia by Cercopithifilaria bainae in a dog from the central western region of Brazil: case report

2020 ◽  
Vol 72 (2) ◽  
pp. 312-316
Author(s):  
J.F. Tutija ◽  
R.L. Soares ◽  
J.T. Echeverria ◽  
M.A.S. Souza ◽  
T.O.V. Silva ◽  
...  

ABSTRACT Cercopithifilaria bainae is a nematode belonging to the family Onchocercidae that parasitizes the subcutaneous tissue of dogs. Its transmission occurs through the tick Rhipicephalus sanguineus and its geographical distribution overlaps that of this vector. The present study reports the detection of microfilaremia by C. bainae in an eight-year-old male dog that presented anorexia, hyperthermia, motor incoordination, mydriasis, a nodule in the left testicle and concomitant infection by Ehrlichia sp. Blood samples were analyzed using microscopy, PCR and DNA sequencing. Microfilariae measuring 150±5.5μm in length and 7±1.8μm in width were retrieved. The DNA sequence exhibited 98% identity with C. bainae sequences available in Genbank. This is the first report of microfilaremia by C. bainae in a dog in the central western region of Brazil.

1990 ◽  
Vol 3 (1) ◽  
pp. 1 ◽  
Author(s):  
MT Clegg ◽  
ML Durbin

Genetic relationships among organisms can be estimated from the pattern of DNA sequence change between hereditary molecules. The methods of molecular biology are increasingly being employed in systematic and evolutionary research to study genetic relationships and phylogeny. The investigator is faced with a variety of choices in initiating research in 'molecular biosystematics'. First, a gene or genome that provides a level of genetic resolution appropriate for the materials under study must be selected. Common choices in plants include the chloroplast genome (cpDNA) or components of the chloroplast genome, the nuclear ribosomal RNA genes (rDNA), or nuclear-encoded, single-copy genes. A second consideration is that several methods can be employed to provide direct or indirect measures of DNA sequence divergence. One widely used method determines genetic divergence based on restriction site changes. Restriction site analyses typically require some knowledge of the physical map of the DNA molecule under study. Empirical studies indicate that restriction site analyses of cpDNA provide good resolution for systematic investigations at or below the family level. A second method that is increasing in importance is DNA sequencing. Until quite recently, DNA sequencing required the molecular cloning of the gene or DNA fragment of interest and the implementation of a 'sequencing strategy' for the production of overlapping sequence runs. Two related technological developments have overcome both of these requirements, when the goal is the repetitive sequencing of a specific gene from a number of taxa. It is now possible to synthesise synthetic oligonucleotides that can be used to prime dideoxy sequencing at virtually any point in the gene of interest, based on previously determined sequence information. The second major innovation is the invention of the polymerase chain reaction technique (PCR). The PCR method permits the direct amplification of DNA fragments from heterogeneous DNA mixtures and thereby circumvents the molecular cloning requirement. Application of the PCR method to chloroplast genes, together with direct primer-mediated sequencing, provides a method for obtaining large data sets. CpDNA sequence data are especially valuable at or above the family level and provide a powerful means of resolving genetic relationships at the deepest levels of plant evolution.


2016 ◽  
Vol 33 (S1) ◽  
pp. S311-S311
Author(s):  
F. Pavez Reyes ◽  
M. Sánchez ◽  
E. Moral ◽  
M. Terradillos ◽  
N. López ◽  
...  

Chronic use of alcohol is a known cause of cerebellar atrophy. This finding could be a valuable diagnosis support when there are not other information sources. In this case report, we describe a 65-year-old male patient who was referred from primary care to specialized consultation because a depressive syndrome it was unresponsive to treatment with desvenlafaxine and lorazepam. In psychopathological exploration we found overvalued ideas of suffering some kind of injury and damage by the family, which oriented the diagnostic hypothesis of delusional disorder with secondary mood symptoms, although the clinical suspicion of abuse of alcohol was proposed as a differential diagnosis. The continuing minimization and denial of consumption by the patient as well as their reluctance to incorporate an external informant made that the workup was a key element to elucidate the diagnosis. We found a discrete increase in transaminases, gamma glutamyl transferase and alkaline phosphatase. Magnetic resonance imaging showed cerebellar atrophy (vermian and, in a lesser extent, in both hemispheres). Once the patient was confronted with these results, he agreed to disclose his problem, which fulfilled alcohol dependence criteria. After that, he accepted to initiate treatment and detoxification in a specialized unity.ConclusionsAlthough psychiatric diagnosis is based on the clinical features and the exclusion of associated medical conditions, in this case the workup provided support to our clinical suspicion, favouring recognition of the problem and willingness to treatment by the patient.Disclosure of interestThe authors have not supplied their declaration of competing interest.


2013 ◽  
Vol 112 (8) ◽  
pp. 3013-3017 ◽  
Author(s):  
Rafael Antonio Nascimento Ramos ◽  
Alessio Giannelli ◽  
Emanuele Brianti ◽  
Giada Annoscia ◽  
Cinzia Cantacessi ◽  
...  

1988 ◽  
Vol 8 (2) ◽  
pp. 978-981
Author(s):  
C N Giroux ◽  
J R Mis ◽  
M K Pierce ◽  
S E Kohalmi ◽  
B A Kunz

A collection of 196 spontaneous mutations in the SUP4-o gene of the yeast Saccharomyces cerevisiae was analyzed by DNA sequencing. The classes of mutation identified included all possible types of base-pair substitution, deletions of various lengths, complex alterations involving multiple changes, and insertions of transposable elements. Our findings demonstrate that at least several different mechanisms are responsible for spontaneous mutagenesis in S. cerevisiae.


2021 ◽  
Vol 2 (1) ◽  

Covid 19 being a pandemic has uniformly and bizarrely affected the globe in a most unpredictable manner. So it becomes very important to unravel the transmission dynamics and the effect of the virus which has made it a deadly virus so far. Covid 19 is a member of coronavirus family, which also includes the SARS virus (Severe Acute Respiratory Syndrome) and MERS (Middle East Respiratory Symptoms) virus. The family of Coronavirus includes virus strains that the common cold and flu are caused [1].


Author(s):  
Brook A. Niemiec ◽  
Jerzy Gawor ◽  
Shuiquan Tang ◽  
Aishani Prem ◽  
Janina A. Krumbeck

Abstract OBJECTIVE To investigate the mycobiome of the oral cavity in healthy dogs and dogs with various stages of periodontal disease. ANIMALS 51 dogs without periodontal disease (n = 12) or with mild (10), moderate (19), or severe (10) periodontal disease. PROCEDURES The whole maxillary arcade of each dog was sampled with a sterile swab, and swabs were submitted for next-generation DNA sequencing targeting the internal transcribed spacer 2 region with a commercial sequencing platform. RESULTS Fungi were detected in all samples, with a total of 320 fungal species from 135 families detected in the data set. No single fungal species was found in all samples. The 3 most frequently found fungal species were Cladosporium sp (46/51 samples), Malassezia restricta (44/51 samples), and Malassezia arunalokei (36/51 samples). Certain fungi, specifically those of the family Didymellaceae, the family Irpicaceae, and the order Pleosporales, were significantly associated with different stages of periodontitis. Mycobial analysis indicated that Cladosporium sp could be considered part of the core oral cavity mycobiome. CONCLUSIONS AND CLINICAL RELEVANCE Results highlighted that fungi are present in the oral cavity of dogs and are characterized by substantial species diversity, with different fungal communities associated with various stages of periodontal disease. The next-generation DNA sequencing used in the present study revealed substantially more species of fungi than previous culture-based studies.


2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Reem M. Hassan ◽  
Dina M. Bassiouny ◽  
Yomna Matar

Kocuria kristinae is opportunistic Gram-positive cocci from the family Micrococcaceae. It is usually considered part of the normal flora that rarely is isolated from clinical specimens. Here, we report a case of Kocuria kristinae bacteremia; to the best of our knowledge, this is the first report from Egypt.


2015 ◽  
Vol 7 (2) ◽  
pp. 78-80
Author(s):  
Vivek Sasindran ◽  
Vijay Stephen ◽  
Lakshana Deve

ABSTRACT Background Tonsillectomy is one of the most common surgical procedures performed worldwide. However, it can potentially be associated with several complications. One of the very rare complications post-tonsillectomy in adults is subcutaneous emphysema, as in our case here. Although, most reported cases are resolved spontaneously, it may lead to fatal complications, like tension pneumothorax. Case report Tonsillectomy was performed on an adult patient with history of frequent tonsillitis. The patient developed facial subcutaneous emphysema 48 hours after the surgery (evident by clinical and radiological examination) that resolved within 2 days without further complications. Conclusion Tonsil should be removed along with tonsilar capsule. If tonsillectomy causes deeper than usual mucosal tear up to the level of the muscles, then air might pass into the subcutaneous tissue through the tonsillar fossa and superior constrictor muscle into fascial layers of neck. Emphysema can then spread to parapharyngeal, retropharyngeal spaces and mediastinum with its related morbidity. Though a rare complication, all otorhinolaryngologists must be aware of this complication and its management. How to cite this article Abraham SS, Stephen V, Deve L, Kurien M. Subcutaneous Emphysema Secondary to Tonsillectomy. Int J Otorhinolaryngol Clin 2015;7(2):78-80.


2021 ◽  
pp. 2613-2619
Author(s):  
Biethee Rani Sarker ◽  
Thongphet Mitpasa ◽  
Arayaporn Macotpet ◽  
Pattara-Anong Bupata ◽  
Somboon Sangmaneedet ◽  
...  

Background and Aim: Anaplasma platys is a blood parasite that infects platelets, causing thrombocytopenia. Rhipicephalus sanguineus ticks are believed to transmit A. platys. To identify A. platys, nested polymerase chain reaction (PCR) has proven to be an effective diagnostic tool. In this study, the molecular prevalence of A. platys infection in dogs was investigated for the 1st time in the Khon Kaen region of Thailand. The association between risk factors and A. platys infection was also evaluated. Materials and Methods: A total of 130 blood samples were collected from dogs in Khon Kaen, Thailand. DNA from the samples was extracted and nested PCR was applied for molecular analysis. Platelet count and packed cell volume (PCV) levels were measured. Platelet counts were categorized into four grades: Non-thrombocytopenia (platelets >200,000 cells/μL), mild thrombocytopenia (platelets 150,000-200,000 cells/μL), moderate thrombocytopenia (platelets 100,000-150,000 cells/μL), and severe thrombocytopenia (platelets <100,000 cells/μL). Four categories for PCV levels of >37%, 30-37%, 20-29%, and <20% were defined as no anemia, mild anemia, moderate anemia, and severe anemia, respectively. DNA sequencing was analyzed using BTSeq™ (Barcode-Tagged Sequencing; CELEMICS, Seoul, South Korea) for similarity index. Results: Among the 130 samples, 9 (6.9%) were positive for A. platys infection. There was an association between low platelet count and infection (p<0.05). PCV level was also associated with A. platys infection (p<0.05). DNA sequencing results of the nine positive samples showed similarity to known sequences of A. platys with 99.36-100% nucleotide identity. These results suggested low genetic diversity in A. platys infecting dogs in the Khon Kaen area. Conclusion: By amplifying 16S rRNA, A. platys infection was detected in the blood of Thai dogs. Further work should be performed to identify risk factors potentially associated with A. platys infection in dogs in Khon Kaen. Other related factors should also be considered, such as location and breeding, as well as the environmental characteristics of each locality. In addition, sampling a larger number of animals may reveal predictors for the positivity of A. platys in dogs in this region.


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