scholarly journals Characterization of Keratinophilic Fungal Species and Other Non-Dermatophytes in Riyadh, Saudi Arabia

2018 ◽  
Author(s):  
Suaad Alwakeel
Keyword(s):  
Saudi Arabia ◽  
Observational Studies ◽  
Fungal Infections ◽  
Mammalian Species ◽  
Fungal Species ◽  
Normal Flora ◽  
Fungal Isolates ◽  
Hair Samples ◽  
The World

Background: The presence of fungal species on the surface skin and hair is a known finding in many mammalian species and humans are no exception. Superficial fungal infections are sometimes a chronic and recurring condition that affects approximately 10-20% of the world’s population. However, most species that are isolated from humans tend to occur as co-existing flora. This study was conducted to determine the diversity of fungal species isolated from the hair and nails of workers in the central region of Saudi Arabia where there are not many observational studies on the mycological species. Materials and Methods: Male workers from Riyadh, Saudi Arabia were recruited for this study and samples were obtained from their nails and hair for mycological analysis which was done using Saboraud’s agar and sterile wet soil. Fungal isolates were examined microscopically. Results: Twenty four hair samples yielded a total of 26 species from 19 fungal genera. Chaetomiumglobosum was the most commonly isolated fungal species followed by Emericellanidulans, Cochliobolusneergaardii, and Penicilliumoxalicum. Three fungal species were isolated from nail samples, namely, Alternariaalternata, Aureobasidiumpullulans, and Penicilliumchrysogenum. Most of the isolated fungal species (17 of the 26 or 65.38% of the isolated fungal species) have not been thoroughly characterised nor morphologically classified. Conclusion: This study demonstrates the presence of previously undescribed fungal species that contribute to the normal flora of the skin and its appendages and may have a role in their pathogenies.

scholarly journals Characterization of Keratinophilic Fungal Species and Other Non-Dermatophytes in Riyadh, Saudi Arabia

2018 ◽  
Author(s):  
Suaad Alwakeel
Keyword(s):  
Saudi Arabia ◽  
Observational Studies ◽  
Fungal Infections ◽  
Mammalian Species ◽  
Fungal Species ◽  
Normal Flora ◽  
Fungal Isolates ◽  
Hair Samples ◽  
The World

Background: The presence of fungal species on the surface skin and hair is a known finding in many mammalian species and humans are no exception. Superficial fungal infections are sometimes a chronic and recurring condition that affects approximately 10-20% of the world’s population. However, most species that are isolated from humans tend to occur as co-existing flora. This study was conducted to determine the diversity of fungal species isolated from the hair and nails of workers in the central region of Saudi Arabia where there are not many observational studies on the mycological species. Materials and Methods: Male workers from Riyadh, Saudi Arabia were recruited for this study and samples were obtained from their nails and hair for mycological analysis which was done using Saboraud’s agar and sterile wet soil. Fungal isolates were examined microscopically. Results: Twenty four hair samples yielded a total of 26 species from 19 fungal genera. Chaetomiumglobosum was the most commonly isolated fungal species followed by Emericellanidulans, Cochliobolusneergaardii, and Penicilliumoxalicum. Three fungal species were isolated from nail samples, namely, Alternariaalternata, Aureobasidiumpullulans, and Penicilliumchrysogenum. Most of the isolated fungal species (17 of the 26 or 65.38% of the isolated fungal species) have not been thoroughly characterised nor morphologically classified. Conclusion: This study demonstrates the presence of previously undescribed fungal species that contribute to the normal flora of the skin and its appendages and may have a role in their pathogenies.

scholarly journals Prevalence and molecular characterization of some circulating strains of the peste-des-petits-ruminants virus in Saudi Arabia between 2014–2016

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9035
Author(s):  
Maged Gomaa Hemida ◽  
Hussain Mohammed Alghadeer ◽  
Mohammed Alhammadi ◽  
Sayed Ali
Keyword(s):  
Saudi Arabia ◽  
Small Ruminants ◽  
Peste Des Petits Ruminants ◽  
Vero Cell Line ◽  
The World ◽  
Eradication Campaign ◽  
Global Eradication ◽  
Tissue Specimens ◽  
Lineage Iv

Background The peste-des-petits-ruminants virus (PPRV) is a highly devastating virus of small ruminants in many parts of the world, including the Kingdome of Saudi Arabia. Therefore, our objectives were (1) to conduct a molecular prevalence study of PPRV in sheep and goat across the KSA and (2) to isolate and identify currently circulating PPRV lineages. Swabs and tissue specimens were collected from 97 herds suspected to be infected with PPRV across the Kingdome of Saudi Arabia (KSA). Testing for the presence of the virus was done by the real-time PCR. Confirmation of the identity of the reactions was done by the gel-based-PCR then by sequencing of the partial PPRV genome. Results Our results revealed that 24.1% of the tested specimens were PPRV-positive. Isolation of PPRV was successful from samples using the Vero cell line. Sequence analysis of some partial PPRV genes (N, F, M, L, P, and H) revealed that these strains were belonging to lineage IV of the PPRV. Conclusions This is the first study to conduct both the nationwide prevalence, isolation, and molecular characterizations of the PPRV in the KSA. Continuous surveillance and monitoring of the circulating strains of PPRV among sheep and goats will contribute substantially to the global eradication campaign of such a virus.

scholarly journals Epidemiological Characterization of Clinical Fungal Isolates from Pauls Stradinš Clinical University Hospital, Latvia: A 4-Year Surveillance Report

Life ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1002
Author(s):  
Nityanand Jain ◽  
Inese Jansone ◽  
Tatjana Obidenova ◽  
Raimonds Sīmanis ◽  
Jānis Meisters ◽  
...  
Keyword(s):  
Fungal Infections ◽  
Treatment Options ◽  
Laboratory Data ◽  
University Hospital ◽  
Global Public Health ◽  
Candida Spp ◽  
Fungal Isolates ◽  
Surveillance Report ◽  
Epidemiological Trends

Nosocomial fungal infections are an emerging global public health threat that requires urgent attention and proper management. With the limited availability of treatment options, it has become necessary to understand the emerging epidemiological trends, mechanisms, and risk factors. However, very limited surveillance reports are available in the Latvian and broader European context. We therefore conducted a retrospective analysis of laboratory data (2017–2020) from Pauls Stradinš Clinical University Hospital (PSCUH), Riga, Latvia, which is one of the largest public multispecialty hospitals in Latvia. A total of 2278 fungal isolates were analyzed during the study period, with Candida spp. comprising 95% of the isolates, followed by Aspergillus spp. and Geotrichum spp. Amongst the Candida spp., C. albicans and C. glabrata made up about 75% of the isolates. The Department of Lung Diseases and Thoracic Surgery had the highest caseload followed by Intensive Care Department. Majority of the fungal isolates were collected from the bronchoalveolar lavage (37%), followed by urine (19%) and sputum (18%) samples. A total of 34 cases of candidemia were noted during the study period with C. albicans being the most common candidemia pathogen. Proper surveillance of emerging epidemiological trends serve as the most reliable and powerful cornerstone towards tackling this emerging threat.

scholarly journals Characterization of Endophytic Fungi from Western Ghat Orchid : Cleisostoma tenuifolium

2020 ◽  
pp. 33-42
Author(s):  
Darsha S ◽  
Jayashankar M
Keyword(s):  
Endophytic Fungi ◽  
Hot Spot ◽  
Sequence Similarity ◽  
Its Region ◽  
Fungal Species ◽  
Western Ghat ◽  
Similarity Matrix ◽  
Aspergillus Aculeatus ◽  
The World

Western Ghats is one of the hottest hot spot in the world. Cleisostoma tenuifolium is an epiphytic orchid from the heart of this region. We have isolated and identified four endophytic fungi from this plant. Characterization of these fungi were done by analyzing the sequences. Genome were quantified and sequenced. Sequence similarity matrix were prepared by comparing the ITS region sequence of obtained fungi with its closely related fungal species from NCBI database. Phylogenetic tree were also constructed for further comparing the homological features of these fungi. From the study, the obtained fungi were Aspergillus flavus MT464452, Cladosporium xanthochromaticum MT464453, Colletotrichum cymbidicola MT464454, Aspergillus aculeatus MT464455. The wide variety of endophytic fungi isolated from the plant C. tenuifolium that belongs to Orchidaceae family further highlights the importance of orchids as reservoirs of fungal biodiversity and its conservation.

scholarly journals Evaluation of Chitin as a Biomarker of Pathogenic Fungal Isolates

2021 ◽  
Vol 50 (3) ◽  
pp. 735-742
Author(s):  
AHMAD SHEHAB AHMAD LAFI ◽  
JACINTA SANTHANAM ◽  
TZAR MOHD NIZAM KHAITHIR ◽  
NUR FASHYA MUSA ◽  
FAHRUL HUYOP
Keyword(s):  
Candida Albicans ◽  
Cryptococcus Neoformans ◽  
High Performance ◽  
Fungal Infections ◽  
Dry Weight ◽  
Fungal Species ◽  
Clinical Samples ◽  
Fungal Isolates ◽  
Diagnostic Potential ◽  
Derivatives Of

Chitin is a polysaccharide component of the inner cell wall of fungi that has been used to estimate fungal invasion in plant products. However, its detection in major pathogenic fungal species has not been investigated. The present study aimed to determine the chitin contents of pathogenic fungal species in order to evaluate its diagnostic potential as a biomarker for fungal infections. High performance liquid chromatography (HPLC) was used to measure chitin content. Pure chitin was acid hydrolyzed and the fluorescence of 9-fluorenylmethylchloroformate (FMOC-CI) derivatives of glucosamine produced were measured. The chitin contents of ten pathogenic fungal isolates were determined per mycelial dry weight. They varied from 18.61 (± 0.09) to 47.12 (± 0.50) μg/mg dry mycelial weight. Candida albicans and Cryptococcus neoformans exhibited the highest and lowest levels of chitin, respectively. Based upon relative amounts of chitin produced, three groups namely: high (Candida albicans, Cryptococcus gattii, Aspergillus niger and Penicilliumat 47.12, 46.98, 46.05, and 44.15 μg/mg respectively), medium (Rhizopus, Aspergillus fumigatus, Fusarium solani, andMucor at 36.61, 36.30, 35.03, and 34.84 μg/mg, respectively), and low (Candida tropicalis and Cryptococcus neoformans at 20.78 and 18.61 μg/mg, respectively), were identified. Chitin was not detectable in bacterial isolates used as controls. The chitin detection method offers a sensitive and specific tool for the quantification of chitin in pathogenic fungal isolates. The detection of chitin may be a useful assay for the diagnosis of fungal infections in clinical samples.

Auto Markets in the World and Strategy of Japan’s Companies

2019 ◽  
Vol 10 (10) ◽  
pp. 1003-1008
Author(s):  
Hiroyuki Matsuoka ◽  
Keyword(s):  
Saudi Arabia ◽  
Electric Vehicle ◽  
New Technologies ◽  
Auto Industry ◽  
Domestic Market ◽  
Automatic Driving ◽  
The World ◽  
Almost All ◽  
Made In

In the world auto market, top three companies are VW(Volkswagen), Runault-Nissan-Mistubishi, and Toyota. About some selected countries and areas, China, England, Italy, Australia, Germany, Turkey, Russia, Sweden, USA, Brazil, UAE, Japan, Vietnam and Thailand are more competitive. However, the situation is different. Seeing monopolistic market countries and areas, Saudi Arabia, Taiwan, Korea, Malaysia, France, India, and Pakistan, in particular, the influence of Japan to Taiwan, India, and Pakistan is very big. But in Korea and France, their own companies’ brands occupy the market. In Japan domestic market, the overall situation is competitive. Almost all vehicles made in Japan are Japanese brand. From now on, we have to note the development of electric vehicle (EV) and other new technologies such as automatic driving and connected car. That is because they will give a great impact on the auto industry and market of Japan. Now Japan’s auto industry is going to be consolidated into three groups, Honda, Toyota group, and Renault-Nissan-Mitsubishi group for seeking the scale merit of economy. Therefore, I will pay attention to the worldwide development of EV and other new technologies and the reorganization of auto companies groups.

THE ROLE AND ROLE OF OIL POLICY IN SAUDI ARABIA IN POST WORLD WAR II ECONOMIC LIFE

2019 ◽  
Vol 20 (2) ◽  
pp. 37-41
Author(s):  
Maftuna Sanoqulova ◽  
Keyword(s):  
Saudi Arabia ◽  
World War Ii ◽  
Economic Life ◽  
World War ◽  
Post World War Ii ◽  
The World ◽  
History Of ◽  
Oil Policy

This article consists of the politics which connected with oil in Saudi Arabia after the World war II , the relations of economical cooperations on this matter and the place of oil in the history of world economics

Incidence and molecular characterization of fungi and yeast isolated from cultured catfish and Nile tilapia

2020 ◽  
Vol 21 (3) ◽  
pp. 61-66
Author(s):  
Ola Hashem ◽  
Viola Zaki ◽  
Rawia Adawy
Keyword(s):  
Molecular Characterization ◽  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Clarias Gariepinus ◽  
Fungal Species ◽  
High Rate ◽  
Fish Farms ◽  
Isolation And Identification ◽  
Penicillium Spp

Objective: To study the incidence and seasonal dynamics of different fungi affected freshwater fishes in Lake Manzala with molecular identification of the isolated fungi. Animals: 300 Nile tilapia (Oreochromis niloticus) and 300 catfish (Clarias gariepinus). Design: Descriptive study. Procedures: Random samples of Oreochromis niloticus (O. niloticus) and Clarias gariepinus (C. gariepinus) were collected from Manzala fish farms. Clinical and postmortem examination of fish was applied. Isolation and identification of different fungi were performed by conventional methods. Furthermore, the molecular characterization of isolated fungi was carried out. Results: C. gariepinus had a higher rate of infection with different fungal species than O. niloticus. Aspergillus spp. (Aspergillus niger and Aspergillus flavus) were the most fungal isolated from the examined fishes, followed by Penicillium spp. and Candida albicans. Aspergillus spp were detected in all seasons with a higher rate in summer and spring. A. flavus, A. niger, Penicillium spp. and C.albicans isolates were amplified from both C. gariepinus and O. niloticus at the specified molecular weight using PCR. Conclusion and clinical relevance: Fungal infection affected the fish showing different external and internal lesions, all species of Aspergillus were found in all seasons with a high rate in, hot seasons, summer and spring. The Prevalence of Penicillium and C. albicans were also reported. All fungal isolates were identified on the phenotypic and molecular bases.

Sign in / Sign up

Export Citation Format

Share Document