scholarly journals Leishmania ITS1 Is Genetically Divergent in Asymptomatic and Symptomatic Visceral Leishmaniasis: Results of a Study in Southern Iran

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Zahra Rezaei ◽  
Eqlima Azarang ◽  
Saeed Shahabi ◽  
Mostafa Omidian ◽  
Bahman Pourabbas ◽  
...  
Keyword(s):  
Visceral Leishmaniasis ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Buffy Coat ◽  
Its1 Sequence ◽  
Crithidia Fasciculata ◽  
Southern Iran ◽  
Clinical Signs And Symptoms ◽  
Asymptomatic Individuals ◽  
Asymptomatic Case

It has been documented that the genotypic traits in symptomatic and asymptomatic cases of visceral leishmaniasis (VL) may be different. The current study aimed to find out and compare the genotype and intraspecies diversity of Leishmania Internal Transcribed Spacer 1 (ITS1) from asymptomatic and symptomatic VL cases in southern Iran. Methods. Buffy coat samples from seven VL patients, with clinical signs and symptoms, and seven asymptomatic VL cases, were evaluated in this study. Samples of asymptomatic individuals were obtained from children living in a VL endemic area in southern Iran, while the samples of symptomatic subjects were obtained from patients admitted to hospitals with a diagnosis of VL. DNA was extracted from the buffy coats of the samples and PCR-amplified, targeting the ITS1of Leishmania. The PCR products were sequenced, and the consensus sequences were assembled and multiple-aligned with a set of Leishmania strains retrieved from the GenBank, using Clustal W. The phylogenetic tree was rooted, using MEGAX software, and the diversities based on haplotype and nucleotides, as well as the number of polymorphic sites, were measured using DnaSP v5.0 software. The results of ITS1 sequencing in 5 out of 7 asymptomatic VL cases showed 99.25% to 100% similarity with the Leishmania infantum ITS1 sequence (accessed number: MN648746), and one isolate was considered as just Leishmania sp. In one sample, 99.75% similarity was seen with the ITS1 sequence of Crithidia fasciculata. Of the symptomatic VL patients, the PCR product revealed a 340 bp band corresponding to L. infantum in all of the samples. By analyzing the ITS1 sequences, all seven sequences formed a clade somewhat different from other Leishmania species and considered as Leishmania sp. Haplotype and nucleotide diversity were much more prevalent in symptomatic cases where six haplotypes were seen in the ITS1 of Leishmania from symptomatic patients and only two haplotypes were observed in the samples from asymptomatic cases. The findings of the current study showed that the Leishmania ITS1 from symptomatic VL and asymptomatic cases has significant genetic differences. Besides, infection with Crithidia fasciculata was reported, for the first time, in an asymptomatic case, which deserves further study.

scholarly journals Molecular and Seroepidemiological Survey of Visceral Leishmaniasis in Owned Dogs (Canis familiaris) in New Foci of Rural Areas of Alborz Province, Central Part of Iran: A Cross-Sectional Study in 2017

2020 ◽  
Author(s):  
Aliehsan Heidari ◽  
Mehdi Mohebali ◽  
Mozhgan Vahed ◽  
Kourosh Kabir ◽  
Zabihollah Zarei ◽  
...  
Keyword(s):  
Visceral Leishmaniasis ◽  
Rural Areas ◽  
Nested Pcr ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Leishmania Species ◽  
Cross Sectional Study ◽  
Capital City ◽  
Cross Sectional ◽  
Clinical Signs And Symptoms

Background: Mediterranean form of visceral leishmaniasis (VL) is endemic among some provinces of Iran. The pre­sent study was designed to determine the prevalence of canine visceral leishmaniasis (CVL) in the owned dogs of the rural areas of Alborz Province near Tehran as the capital of Iran. Methods: This study conducted on 303 owned dogs that selected using a stratified random sampling method. The direct agglutination test (DAT) was used to determine the frequency of Vl. The spleen biopsy was taken from the serology-positive dogs for the confirmation of CVL in the suspected dogs. Nested PCR and sequencing methods were used to determine the type of Leishmania species in the dogs which were parasitological positive. Results: Overall, the DAT results of 9 dogs (2.97%, CI: 1.57–5.55) showed anti Leishmania antibodies at titers ≥ 1:320 indicating VL infection. One dog (0.33%, CI 95%: 0.06–1.85) showed clinical signs and symptoms of VL. There was a significant correlation between the positive cases of CVL and rural area (p< 0.001). The Leishmania was observed in the impression smears that were prepared from spleen biopsy of five the studied dogs. Leishmania infantum were con­firmed in all them using nested–PCR assay. The sequence analysis of all five isolates was 95% similar to L. infantum. Conclusion: This study shows that domestic cycle of L. infantum has been established in rural areas of Alborz province where located near Tehran as capital city of Iran. It is necessary to increase the awareness and monitoring of the disease periodically.

scholarly journals Dementia and Major Neurocognitive Disorders: Some Lessons Learned One Century after the first Alois Alzheimer’s Clinical Notes

Geriatrics ◽  
2021 ◽  
Vol 6 (1) ◽  
pp. 5
Author(s):  
Donatella Rita Petretto ◽  
Gian Pietro Carrogu ◽  
Luca Gaviano ◽  
Lorenzo Pili ◽  
Roberto Pili
Keyword(s):  
Young Woman ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Neurocognitive Disorders ◽  
Lessons Learned ◽  
Alzheimer Dementia ◽  
Clinical Notes ◽  
Alois Alzheimer ◽  
Clinical Signs And Symptoms

Over 100 years ago, Alois Alzheimer presented the clinical signs and symptoms of what has been later called “Alzheimer Dementia” in a young woman whose name was Augustine Deter [...]

scholarly journals Correction to: Levoketoconazole improves clinical signs and symptoms and patient-reported outcomes in patients with Cushing’s syndrome

Pituitary ◽  
2020 ◽  
Author(s):  
Eliza B. Geer ◽  
Roberto Salvatori ◽  
Atanaska Elenkova ◽  
Maria Fleseriu ◽  
Rosario Pivonello ◽  
...  
Keyword(s):  
Cushing’S Syndrome ◽  
Patient Reported Outcomes ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Cushing's Syndrome ◽  
Original Version ◽  
Patient Reported ◽  
Author Group ◽  
Clinical Signs And Symptoms

The original version of the article unfortunately contained an error in the first name and the surname of one of the authors in the author group. The last author name was incorrectly published as ‘F. Pecori Giraldi’ and the corrected name is ‘Francesca Pecori Giraldi’ (First name: Francesca; Surname: Pecori Giraldi).

scholarly journals A 38-year demographic study of central and peripheral giant cell granulomas of the jaws

2016 ◽  
Vol 15 (2) ◽  
pp. 220-223 ◽  
Author(s):  
Shadi Saghafi ◽  
Reza Zare-Mahmoodabadi ◽  
Narges Ghazi ◽  
Mohammad Zargari
Keyword(s):  
Giant Cell ◽  
Medical Science ◽  
Age Distribution ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Posterior Maxilla ◽  
Frequent Site ◽  
Male Patients ◽  
Clinical Signs And Symptoms ◽  
Anterior Mandible

Objective: The purpose of this study was to retrospectively analyze the demographic characteristics of patients with central giant cell granulomas (CGCGs) and peripheral giant cell granulomas (PGCGs) in Iranian population.Methods: The data were obtained from records of 1019 patients with CGCG and PGCG of the jaws referred to our department between 1972 and 2010. This 38-year retrospective study was based on existing data. Information regarding age distribution, gender, location of the lesion and clinical signs and symptoms was documented. Results: A total of 1019 patients were affected GCGLs including 435 CGCGs and 584 PGCGs during the study. The mean age was 28.91 ± 18.16. PGCGs and CGCGs had a peak of occurrence in the first and second decade of life respectively. A female predominance was shown in CGCG cases (57.70%), whereas PGCGs were more frequent in males (50.85%). Five hundred and ninety-eight cases of all giant cell lesions (58.7 %) occurred in the mandible. Posterior mandible was the most frequent site for both CGCG and PGCG cases. The second most common site for PGCG was posterior maxilla (21%), whereas anterior mandible was involved in CGCG (19.45%). The majority of patients were asymptomatic. Conclusions: In contrast to most of previous studies PGCGs occur more common in the first decade and also more frequently in male patients. Although the CGCGs share some histopathologic similarities with PGCGs, differences in demographic features may be observed in different populations which may help in the diagnosis and management of these lesions.Bangladesh Journal of Medical Science Vol.15(2) 2016 p.220-223

scholarly journals Is Bisphosphonate-Related Osteonecrosis of the Jaw an Infection? A Histological and Microbiological Ten-Year Summary

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
A. M. Hinson ◽  
C. W. Smith ◽  
E. R. Siegel ◽  
B. C. Stack
Keyword(s):  
Systematic Review ◽  
Disease Severity ◽  
Large Scale ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Osteonecrosis Of The Jaw ◽  
Multifactorial Disease ◽  
Clinical Signs And Symptoms ◽  
Surgical Treatments

The role of infection in the etiology of bisphosphonate-related osteonecrosis of the jaw (BRONJ) is poorly understood. Large-scale epidemiological descriptions of the histology and microbiology of BRONJ are not found in the literature. Herein, we present a systematic review of BRONJ histology and microbiology (including demographics, immunocompromised associations, clinical signs and symptoms, disease severity, antibiotic and surgical treatments, and recovery status) validating that infection should still be considered a prime component in the multifactorial disease.

Phasic jaw motor episodes in healthy subjects with or without clinical signs and symptoms of sleep bruxism: a pilot study

2013 ◽  
Vol 18 (1) ◽  
pp. 187-193 ◽  
Author(s):  
Shuichiro Yoshizawa ◽  
Takeshi Suganuma ◽  
Masayuki Takaba ◽  
Yasuhiro Ono ◽  
Takuro Sakai ◽  
...  
Keyword(s):  
Pilot Study ◽  
Healthy Subjects ◽  
Clinical Signs ◽  
Signs And Symptoms ◽  
Sleep Bruxism ◽  
Clinical Signs And Symptoms
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