568 results on '"Direct microscopy"'
Search Results
2. Clinicomycological Pattern of Dermatophytosis in Odisha, a Coastal State of Eastern India
- Author
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Sakshi Gaba, Kumudini Panigrahi, Hemanta K. Kar, and Mitanjali Sethy
- Subjects
dermatophytosis ,direct microscopy ,epidermophyton floccosum ,fungal culture ,tinea corporis ,tinea cruris ,trichophyton mentagrophytes ,trichophyton rubrum ,Dermatology ,RL1-803 - Abstract
Background: Dermatophytosis is a fungal infection that targets the skin and its appendages, such as the nails and hair. It affects all age groups and is estimated to affect approximately 20–25% of the population across the world. There are insufficient data on the clinic-mycological pattern of dermatophytosis in Odisha, a coastal state in eastern India. The study aims to explore the clinico-mycological pattern of prevailing superficial cutaneous fungal infections and to identify the specific species as per the site of skin involvement. Methods: This is a cross-sectional study conducted in the Department of Dermatology in collaboration with the Department of Microbiology at a tertiary health care centre, Odisha, for a period of 2 years, from October 2020 to September 2022. Participants aged 18–65 years with active dermatophyte infections of the skin were included in the study. Clinical examination and mycological workup were performed, and the collected samples were divided into two parts, one for direct microscopy and the other for fungal culture. Results: According to our study, the most common isolate was Trichophyton mentagrophytes (21.7%), followed by T. rubrum (11.7%), and 5.3% of cultures showed T. schoenleinii isolates, whereas Microsporum canis and Microsporum gypseum constituted 2.7% and 0.7%, respectively. Conclusion: The present study focuses on the prevalence and clinical trends of different dermatophyte species associated with dermatophytosis in eastern India. Due to the favourable climate of Odisha, superficial mycoses are prevalent here, and according to our study, Trichophyton mentagrophytes is the predominate isolate in this region.
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- 2024
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3. Basic Mycology
- Author
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Ahmed, Sarah A., de Hoog, Sybren, Hospenthal, Duane R., editor, Rinaldi, Michael G., editor, and Walsh, Thomas J., editor
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- 2023
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4. Determination of Trichomonas vaginalis Frequency Among Symptomatic Cases in Muğla Sıtkı Koçman Hospital Using Different Methods (Direct Microscopy, Culture, PCR and Immunochromatographic Method).
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Sankur, Funda, Ertuğ, Sema, Malatyalı, Erdoğan, Tileklioğlu, Evren, Yıldız, İbrahim, and Ertabaklar, Hatice
- Subjects
TRICHOMONAS vaginalis ,MICROSCOPY ,POLYMERASE chain reaction ,DEMOGRAPHIC surveys ,OBSTETRICS - Abstract
Copyright of Meandros Medical & Dental Journal is the property of Galenos Yayinevi Tic. LTD. STI and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2023
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5. Presence of Trichomonas tenax and Entamoeba gingivalis in peri-implantitis lesions.
- Author
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Arpağ, Osman Fatih and Kaya, Özlem Makbule
- Subjects
TRICHOMONAS ,ENTAMOEBA gingivalis ,PERI-implantitis ,GINGIVAL fluid ,DENTAL plaque ,PERIODONTAL pockets ,DENTAL implants - Abstract
Objective: The aim was to investigate the presence of Entamoeba gingivalis and Trichomonas tenax in peri-implantitis lesions. Method and materials: A total of 141 individuals were included in this study, of which 40 had clinically healthy implants (group H); the remaining were associated with peri-implantitis (group P). Gingival crevicular fluid was collected using absorbent paper, followed by a dental plaque sample from the peri-implant sulcus/pocket using a titanium curette. The samples were transferred into an Eppendorf tube. Each specimen was divided into two parts. One part was examined under a light microscope at a 10 × and 40 × magnification to detect parasites. The other part was spread on a microscope slide, stained with Giemsa stain, and examined under a microscope at 100 × magnification. Pearson chi-square test was used in the statistical analysis of data, with a significance level of P < .05. Results: Although there was no presence of parasite around the healthy implants, two parasites were detected in periimplantitis lesions. Out of 101 lesions, 31 (30.7%) showed E gingivalis, and 34 (33.6%) presented with T tenax. There was a statistically significant difference between the presence of E gingivalis and demographic data including gender, education status, frequency of dental visits, and brushing frequency. Presence of T tenax in lesions was correlated with frequency of dental visits (P < .05). It was observed that E gingivalis and T tenax were mostly detected in the mandible (P = .004 and .014, respectively) in comparison with the maxilla. Conclusion: This study showed that peri-implantitis lesions were involved with E gingivalis and T tenax, in contrast to the healthy areas. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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6. How to use direct microscopy for diagnosing fungal infections.
- Author
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Knoll, Miriam Alisa, Steixner, Stephan, and Lass-Flörl, Cornelia
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MYCOSES , *MICROSCOPY , *FUNGAL morphology , *FLUORESCENT dyes , *DIAGNOSIS , *EARLY diagnosis - Abstract
Invasive fungal infections are an important cause of morbidity and mortality in a broad range of patients. Adequate and early diagnosis is a challenge and of importance for improved survival. New molecular-based diagnostic methods are trendsetting, yet with the drawback that conventional tests receive less attention, in the laboratory as well as in the clinical setting. We aimed to provide a useful recommendation for direct microscopy for effectively managing numerous specimens related to fungal infections, mainly covering opportunistic pathogens. A PubMed literature search covering direct fungal microscopy was performed with no restrictions on publication dates. Best practise recommendations targeting the role of direct microscopy in diagnosing fungal infections are given. This review highlights when to perform direct microscopy, displays the main fungal morphologies, discusses the pitfalls related to microscopy, and recommends how to best report the results to clinicians. In many samples, the performance of direct microscopy provides an important diagnostic benefit that is greater than culture alone. Fluorescent dyes improve sensitivity and allow a fast and rapid read. Reporting includes the presence or absence of yeast forms, septate or non-septate hyphae, pigmentation, cellular location, or any other specific structures being present. The visualization of fungal elements from a sterile body site is proof of an infection, independent of other test reports. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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7. Spectrum of fungal isolates from various clinical specimens.
- Author
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Guriaya, Hardik, Galhotra, Shipra, Dhuria, Nitika, Gill, Harleen Kaur, and Sharma, Vishal
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PARACOCCIDIOIDOMYCOSIS , *MYCOSES , *INVASIVE candidiasis , *PATHOGENIC fungi , *CANDIDA , *MICROFUNGI , *GLOBAL burden of disease , *RHIZOPUS - Abstract
Background: In the recent years, the pathogenic mycoses and fungi have emerged as important infectious agents. The fungus infections can be mild and only superficial or cutaneous or may cause life-threatening systemic illnesses. They have an ever increasing global disease burden and regional estimates for specific fungal diseases are often unavailable or dispersed. This study was carried out to study the spectrum of fungal isolates from various clinical specimens in a tertiary care hospital. Material and methods: The study was conducted at department of Microbiology, Guru Gobind Singh Medical College and Hospital, Faridkot. Total 610 clinical specimens suspected of fungal infection were processed by KOH direct microscopy and culture. Results: Total positivity for fungal infection was 17.8% (109/610). On KOH direct microscopy, 92 were positive while on culture 86 were positive. On culture, various isolates obtained were Non albicans candida (35%),Candida albicans (28%), Cryptococcus spp. (2%), A.fumigatus (12%), A.favus(5%), Rhizopus spp.(7%), Mucor spp.(3%), Trichophyton spp.(8%). In this study, younger male population was found to be more susceptible to fungal infection. Conclusion: This study brings to light the spectrum of common fungal isolates from a tertiary care hospital. Early detection of fungus by microscopic examination can be used as an important screening test for presumptive diagnosis of fungal infection and it would help the clinician in stoppage of antibiotic therapy and in initiating empirical antifungal therapy earlier, which will help better clinical outcome in such category of patient. [ABSTRACT FROM AUTHOR]
- Published
- 2022
8. Inadequate diagnostic testing and systemic antifungal prescribing for tinea capitis in an observational cohort study of 3.9 million children, United States.
- Author
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Gold, Jeremy A.W., Benedict, Kaitlin, Dulski, Theresa M., and Lipner, Shari R.
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- 2023
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9. Pityriasis versicolor epidemiology, disease predictors, and health care utilization: Analysis of 32,679 cases in a large commercial insurance database.
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Gold JAW, Benedict K, and Lipner SR
- Abstract
Competing Interests: Conflicts of interest Dr Lipner has served as a consultant for Ortho-Dermatologics, Eli Lilly, Moberg Pharmaceuticals, and Belle Torus Corporation. Drs Gold and Benedict have no conflicts of interest to declare.
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- 2024
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10. Examination of Giardia intestinalis with Direct Microscopy and Direct Fluorescent Antibody in Patients with Diarrhea
- Author
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Ahmet Yılmaz and Hakan Uslu
- Subjects
giardia spp. ,diarrhoea ,direct fluorescent antibody ,direct microscopy ,risk factor ,Medicine ,Infectious and parasitic diseases ,RC109-216 - Abstract
Objective:In this study, our objective was to compare direct microscopic examination and direct fluorescence antibody (DFA) method for Giardia diagnosis in stool samples and to evaluate the possible risk factors related to Giardia infections.Methods:Stool samples of 185 patients with diarrhoea collected between June 2019 and July 2019 in Erzurum Yakutiye Research Hospital were included in the study. Microscopic examination of the samples was performed with native-lugol, and they were subsequently scanned by the indirect fluorescent assay microscope using the DFA method at 100-200X magnification. In addition, all patients filled a questionnaire prepared to determine the possible risk factors related to Giardia infection.Results:The age of the 185 participating patients who belonged to different groups was between 0 and 94 years. Giardia spp. cysts were detected in five stool samples (2.7%) using direct microscopic examination. Nine samples (4.9%) were DFA-positive. The incidence of giardiasis was noted to be 7.5% in children, 3.8% in adults, 7.3% in people living in rural areas, 2.9% in people living in urban areas, 10% in people having pets and 4.2% in people who do not have pets.Conclusion:By taking the DFA method as a reference, the sensitivity and specificity of the microscopic examination were found to be 44.4% and 99.4%, respectively. The Giardia positivity rate was higher in children, those living in rural areas, those having pets and those using well water as drinking water.
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- 2020
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11. Laboratory-based diagnosis of scabies: a review of the current status.
- Author
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Siddig, Emmanuel Edwar and Hay, Roderick
- Subjects
SCABIES ,SARCOPTES scabiei ,NEGLECTED diseases ,SERODIAGNOSIS - Abstract
Scabies is a neglected tropical disease (NTD) of the skin that is caused by the mite Sarcoptes scabiei. It is considered to be an important public health problem in many regions. The disease is at its most prevalent in low-resource countries where there are overcrowded living conditions coupled with poor hygiene. In some regions, mass drug administration using ivermectin is a key population-based approach to the control of scabies. Before starting a patient on specific treatment, confirming the diagnosis by accurate and rapid identification of the organism is critical. Different laboratory-based techniques for scabies have been developed in the last few decades. These include direct microscopy and histopathology. More recently, serological testing, dermoscopy and different molecular techniques have been developed as diagnostic methods for scabies. To date, none of these, apart from microscopy and dermoscopy, has been translated into routine clinical laboratory practice. A simple point-of-care or laboratory test would provide a rapid and confirmed diagnosis and early institution of effective treatment. In this review we present an update on the laboratory techniques currently in use for the identification of scabies. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
12. Clinicomycological Pattern of Dermatophytosis in Odisha, a Coastal State of Eastern India.
- Author
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Gaba S, Panigrahi K, Kar HK, and Sethy M
- Abstract
Background: Dermatophytosis is a fungal infection that targets the skin and its appendages, such as the nails and hair. It affects all age groups and is estimated to affect approximately 20-25% of the population across the world. There are insufficient data on the clinic-mycological pattern of dermatophytosis in Odisha, a coastal state in eastern India. The study aims to explore the clinico-mycological pattern of prevailing superficial cutaneous fungal infections and to identify the specific species as per the site of skin involvement., Methods: This is a cross-sectional study conducted in the Department of Dermatology in collaboration with the Department of Microbiology at a tertiary health care centre, Odisha, for a period of 2 years, from October 2020 to September 2022. Participants aged 18-65 years with active dermatophyte infections of the skin were included in the study. Clinical examination and mycological workup were performed, and the collected samples were divided into two parts, one for direct microscopy and the other for fungal culture., Results: According to our study, the most common isolate was Trichophyton mentagrophytes (21.7%), followed by T. rubrum (11.7%), and 5.3% of cultures showed T. schoenleinii isolates, whereas Microsporum canis and Microsporum gypseum constituted 2.7% and 0.7%, respectively., Conclusion: The present study focuses on the prevalence and clinical trends of different dermatophyte species associated with dermatophytosis in eastern India. Due to the favourable climate of Odisha, superficial mycoses are prevalent here, and according to our study, Trichophyton mentagrophytes is the predominate isolate in this region., Competing Interests: There are no conflicts of interest., (Copyright: © 2024 Indian Journal of Dermatology.)
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- 2024
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13. Tinea Gladiatorum Prevalence Among Wrestlers in the Era of Required Skin Inspection.
- Author
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Berg, Mark A., Miner, Michael, and Roberts, William O.
- Abstract
Transmittable skin infections in sport are a concern, especially for wrestlers. Current methods for limiting tinea gladiatorum transmission in United States high school wrestling include a required skin inspection protocol. Tinea prevalence before and after the skin inspection protocol was instituted is not widely known. We prospectively determined tinea prevalence among a Minnesota high school wrestler cohort over their 12-week season and compared this to point-in-time incidences reported in wrestlers not subject to a skin inspection protocol. Wrestlers having a suspicious rash at the skin inspection (raised, red, > 5mm diameter, and with dry flaky scale) were recruited. Among suspicious rashes, tinea gladiatorum infection was determined using direct microscopy with chlorazol black staining. Thirty-eight of 510 wrestlers (7%) developed a rash suspicious for tinea. Thirty-four wrestlers that had rash(s) were enrolled and their rash was tested. Twenty-two of 510 wrestlers developed tinea gladiatorum throughout the season. Tinea gladiatorum prevalence was 4.3% (95% CI 2.5-6.1%). Four wrestlers with rash were not available for testing (unable to obtain timely consent (two) or obtain adequate sample(two)). Prevalence was less than suggested by the incidences previously reported in wrestling populations. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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14. Validation of a lateral flow immunochromatographic assay for tinea unguium diagnosis.
- Author
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Tsuboi, Ryoji, Mochizuki, Takashi, Ito, Haruo, Kawano, Shiomi, Suzuki, Yosuke, Naka, Wataru, Hata, Yasuki, Hamaguchi, Taizo, and Maruyama, Ryuji
- Abstract
Tinea unguium is a common nail disease caused by dermatophytes. Although direct potassium hydroxide (KOH) microscopy and fungal culture are considered the gold standard for diagnosing this disease, their accuracy is insufficient. A lateral flow immunochromatographic assay (LFIA) kit, using a monoclonal antibody against Trichophyton rubrum, was developed and its sensitivity was recently improved 50% in vitro relative to its earlier version. The present study aimed to validate the clinical utility of this improved LFIA kit for diagnosing tinea unguium in comparison with direct KOH microscopy. A similar trial was simultaneously performed using scale samples from patients with tinea pedis to determine the assay's diagnostic potential. Nail samples, approximately 2 mg in weight, were collected from 112 non‐treated tinea unguium patients and 56 non‐tinea unguium patients. Samples from 25 tinea pedis patients and 20 non‐tinea pedis patients were also collected. The sensitivity and specificity of the LFIA kit for tinea unguium was 84.8% (95/112) (95% confidence interval [CI], 76.8–90.9) and 83.9% (47/56) (95% CI, 71.7–92.4), respectively. The inconsistency rate was 15.5% (26/168) (95% CI, 10.4–21.9). The sensitivity and specificity of the LFIA kit for tinea pedis was 84.0% (21/25) and 100.0% (20/20), respectively. These results suggest that for diagnosing tinea unguium, the LFIA kit is a useful supplement to, but not a replacement for, direct KOH microscopy. For definitive diagnosis of suspected cases, appropriate sampling, repeated examinations, and a combination of diagnostic techniques are essential. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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15. Accuracy of Interpretation of Fungi by Direct Microscopy using Chlorazol Black E versus Gold Standard Potassium Hydroxide.
- Author
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Matthapan, Lalita, Leeyaphan, Charussri, Limphoka, Pichaya, Lertrujiwanit, Kamonpan, Prasong, Waranyoo, and Bunyaratavej, Sumanas
- Subjects
POTASSIUM hydroxide ,MICROFUNGI ,MICROSCOPY ,FUNGI ,MYCOSES - Abstract
Background: Superficial fungal infections are skin diseases that affect people worldwide. To confirm the diagnosis of these diseases, mycological investigation by direct microscopic examination and culture are required. Chlorazol black E (CBE) is an acid-based dye of the trisazo group of dyes that has a high affinity for chitin. Data specific to the efficacy of CBE for detection of fungi by direct microscopy is limited. Objective: To investigate the accuracy of interpretation of fungi by direct microscopy using CBE versus potassium hydroxide (KOH). Materials and Methods: The present study was a retrospective study, conducted at the Department of Dermatology, Faculty of Medicine, Siriraj Hospital, Mahidol University in 2018. Slide interpretations by 33 microscopists were reviewed. The interpretation scores of all participants in each specimen were recorded and compared between CBE and KOH. Results: Thirty-three participants were included. The mean interpretation score of all participants was 17.2±4.9. The mean interpretation scores of overall specimens using CBE was significantly more than using KOH (p<0.001). For Candida spp. and dermatophytes, the accuracy of interpretation using CBE was statistically higher than KOH (p=0.020, p<0.001, respectively). Relative to negative findings, CBE yielded significantly more false-positive results than KOH (p=0.003). Conclusion: CBE for direct microscopic examination of fungi specimens is helpful for increasing the accuracy of interpretation. However, falsepositive results are more prevalent when using CBE. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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16. Intestinal Parasitoses among Chepang and Musahar Community People of Makwanpur and Nawalparasi Districts of Nepal.
- Author
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Khadka, Sujan, Sapkota, Sanjeep, Adhikari, Sanjib, Dubey, Ashok Kumar, Thapa, Alina, Bashyal, Rajendra, and Bhusal, Hari
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INTESTINAL parasites ,ACANTHOCEPHALA ,INTESTINES ,PARASITIC diseases ,INTESTINAL infections ,ASCARIS lumbricoides - Abstract
Background: Intestinal parasitosis is one of the commonly perceived serious problems often observed in children leading to high mortality. The objective of the study was to identify the intestinal parasites and study their prevalence in the two mostly disadvantaged communities (Musahar and Chepang) of Nepal. Methods: This was a cross-sectional study conducted in the Musahar and Chepang communities of Nepal from April to October 2019. A total of 205 random stool samples were collected in dry, clean and screw-capped plastic containers and mixed with 2.5% potassium dichromate solution. A pre-structured questionnaire was used to collect data on predisposing factors. The laboratory examination of the stool samples was done by direct microscopy and further confirmed by concentration methods (formalin ether sedimentation technique and flotation technique using Sheather's sugar solution), and modified acid-fast staining. Detection of eggs of Enterobius vermicularis was done by cellophane tape method. Results: The overall prevalence of intestinal parasitic infection was found to be 36.6%, with a similar prevalence in the Chepangs (39.8%) and in the Musahars (33.3%) (P > 0.05). The most predominant helminth was Ascaris lumbricoides (15.6%), while the most prevalent protozoan was Entamoeba histolytica/dispar (5.4%). The study also assessed a significant association between the prevalence of parasites with socio-demographic factors, types of drinking water consumption and sanitation habits of the people (P < 0.05). Conclusion: The findings of the study suggest a need for formulating effective preventive and control strategies against intestinal parasitic infections along with the continuity of mass deworming program. [ABSTRACT FROM AUTHOR]
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- 2021
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17. Diagnostic performance of direct wet mount microscopy in detecting intestinal helminths among pregnant women attending ante-natal care (ANC) in East Wollega, Oromia, Ethiopia
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Hylemariam Mihiretie Mengist, Gebreselassie Demeke, Olifan Zewdie, and Adugna Belew
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Diagnostic performance ,Direct microscopy ,Helminths ,Pregnant women ,Medicine ,Biology (General) ,QH301-705.5 ,Science (General) ,Q1-390 - Abstract
Abstract Objective The aim of this study was to evaluate the diagnostic performance of direct wet mount microscopy compared to formalin ether concentration (FEC) technique in detecting intestinal helminths in pregnant women. Results The total prevalence of intestinal helminths was 18.8% (70/372) by direct wet mount microscopy and 24.7% (92/372) by FEC technique (P 0.81) but they fairly agreed in detecting ova of Hymenolepis nana (Kappa = 0.39). Intestinal helminths were underdiagnosed and the total diagnostic performance of direct wet mount microscopy was significantly poor in detecting intestinal helminths as compared to FEC technique. Routine use of FEC method is recommended for the diagnosis of intestinal helminths in pregnant women.
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- 2018
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18. A Case of Tinea faciei Due to Nannizzia gypsea: Inflammatory Eruption on the Medial Angle of the Eyelid.
- Author
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Shimoyama, Harunari, Yo, Ayaka, Makimura, Koichi, Sei, Yoshihiro, and Kuwano, Yoshihiro
- Abstract
Nannizzia gypsea is a geophilic dermatophyte, previously known as Microsporum gypseum before renaming under the new taxonomy. This organism is distributed all over the world and is considered to be involved in keratin degradation in the soil. Generally, human infection involves direct contact with fertile soil. Tinea caused by geophilic dermatophytes is much rarer than that caused by anthropophilic dermatophytes. According to the latest survey in Japan, dermatophytosis due to N. gypsea accounted for only 0.4% of cases. Clinical presentations vary and may mimic other inflammatory dermatitis, leading to incorrect diagnosis and delayed treatment. According to that past report, distal parts of the upper and lower extremities were more commonly affected, followed by the trunk, face and scalp, and rarely the nail plate. A 38-year-old woman presented with an approximately 3-week history of an itchy, solitary erythematous lesion on the left medial angle of the eyelid. Direct microscopic examination of scales revealed fungal elements, and the causative agents was identified as N. gypsea by morphological and molecular biological diagnoses. The eruption improved with systemic itraconazole treatment at 100 mg/day for 8 weeks. No recurrence has been seen for a year. However, she had no history of contact with any infectious source. Herein, we report a case of tinea faciei due to N. gypsea with an uncommon site and route of infection. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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19. Prevalence of Gastrointestinal Nematodes (Capillaria spp.) in Domestic Pigeons (Columba livia) in Bahawalpur, Pakistan.
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Qureshi, Anshara Javed and Aziz, Ishrat
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PIGEONS ,MICROSCOPY ,FEMALES ,MALES - Abstract
The prevalence of gastrointestinal nematodes (Capillaria specie) or the risk of capillariasis in domestic pigeons (Columbia Livia) in the Bahawalpur area of Pakistan was investigated in May 2023. Fecal samples of 100 pigeons (30 males and 70 females) belonging to 30 different breeds were collected from four different houses of the Dilawar colony area of Bahawalpur, and proceeded qualitatively through direct microscopy and floatation method. In this study, 18 (11 males and 7 females) out of the 100 samples (with a prevalence 18%) were found infected with Capillaria spp. of nematodes. The qualitative examination also revealed that the Capillaria spp. of nematodes was more prevalent in males (36.67%) than females (10%). This study will be helpful in raising awareness among pigeon owners for better control and treatment strategies for capillariasis and also to improve the health status of pigeons and provide them with a better hygienic or healthy environment. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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20. Basic Mycology
- Author
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Sutton, Deanna A., Georgiev, Vassil St., Series editor, Hospenthal, Duane R., editor, and Rinaldi, Michael G., editor
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- 2015
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21. Onychomycosis: Clinical overview and diagnosis.
- Author
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Lipner, Shari R. and Scher, Richard K.
- Abstract
Onychomycosis is a fungal nail infection caused by dermatophytes, nondermatophytes, and yeast, and is the most common nail disorder seen in clinical practice. It is an important problem because it may cause local pain, paresthesias, difficulties performing activities of daily life, and impair social interactions. In this continuing medical education series we review the epidemiology, risk factors, and clinical presentation of onychomycosis and demonstrate current and emerging diagnostic strategies. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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22. Laboratory-based diagnosis of scabies
- Author
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Roderick Hay, Emmanuel Edwar Siddig, and Medical Microbiology & Infectious Diseases
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medicine.medical_specialty ,030231 tropical medicine ,Population ,serology ,Disease ,Review Article ,Sarcoptes scabiei ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Ivermectin ,SDG 3 - Good Health and Well-being ,LAMP ,molecular diagnosis ,Scabies ,medicine ,Animals ,Humans ,AcademicSubjects/MED00860 ,education ,Skin ,education.field_of_study ,direct microscopy ,biology ,business.industry ,Public health ,Direct microscopy ,Public Health, Environmental and Occupational Health ,Tropical disease ,Neglected Diseases ,General Medicine ,medicine.disease ,biology.organism_classification ,Dermatology ,scabies ,Infectious Diseases ,AcademicSubjects/MED00290 ,histopathology ,Parasitology ,business ,medicine.drug - Abstract
Scabies is a neglected tropical disease (NTD) of the skin that is caused by the mite Sarcoptes scabiei. It is considered to be an important public health problem in many regions. The disease is at its most prevalent in low-resource countries where there are overcrowded living conditions coupled with poor hygiene. In some regions, mass drug administration using ivermectin is a key population-based approach to the control of scabies. Before starting a patient on specific treatment, confirming the diagnosis by accurate and rapid identification of the organism is critical. Different laboratory-based techniques for scabies have been developed in the last few decades. These include direct microscopy and histopathology. More recently, serological testing, dermoscopy and different molecular techniques have been developed as diagnostic methods for scabies. To date, none of these, apart from microscopy and dermoscopy, has been translated into routine clinical laboratory practice. A simple point-of-care or laboratory test would provide a rapid and confirmed diagnosis and early institution of effective treatment. In this review we present an update on the laboratory techniques currently in use for the identification of scabies.
- Published
- 2022
23. High-magnification universal serial bus dermoscopy: A convenient alternative to direct microscopic examination.
- Author
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Sonthalia, Sidharth, Bhattacharya, Sambit Nath, Agrawal, Mahima, and Das, Shukla
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- 2020
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24. Pityriasis Versicolor and Other Malassezia Skin Diseases
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Erchiga, Vicente Crespo, Hay, Roderick J., Boekhout, Teun, editor, Mayser, Peter, editor, Guého-Kellermann, Eveline, editor, and Velegraki, Aristea, editor
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- 2010
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25. Microwave‐mediated synthesis of zinc oxide nanoparticles: a therapeutic approach against Malassezia species.
- Author
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Goswami, Shrestha Roy and Singh, Mukesh
- Abstract
A successful protocol was developed to aid in the reduction in dandruff‐causing fungi, namely Malassezia globasa and Malassezia furfur. Both the species were isolated from volunteers aged between 20 and 22 suffering from dandruff, cultured ex vivo, and tested against the presence of synthesised zinc oxide nanoparticles (ZnNP). Direct microscopy, scanning electron microscopy (SEM), and biochemical assays specific to Malassezia species were conducted to identify dandruff‐causing fungal species. Microwave‐mediated synthesis of ZnNP was performed and characterised by UV–vis, X‐ray diffraction, and SEM. The nanoparticles were tested against both Malassezia species and proved highly effective in inhibiting these fungi, although M. furfur was more susceptible than M. globosa. An optimum amount of 100 ppm was found to be sufficient to work as an antifungal agent. Synergistic effects of ZnNP with commercial shampoos were tested, and the result showed enhanced antifungal effects. To mimic the natural biofilm formed by these species on human skin, the formation of fungal biofilm was allowed on polystyrene coverslips. ZnNP was effective in eradication biofilm. Since zinc is an essential mineral for all living organism and is considered as biocompatible, the synthesised nanomaterials can be used in the formulation of antidandruff shampoos. [ABSTRACT FROM AUTHOR]
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- 2018
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26. Evaluation of a new fluorescent reagent, fluorescent brightener 85, for the diagnosis of suspected onychomycosis compared with potassium hydroxide.
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Yue, Xueping, Wang, Aiping, Wang, Hongwei, Li, Qing, and Yue, Xiuling
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MYCOSES , *POTASSIUM hydroxide , *CANDIDA , *NAIL diseases , *PERIODIC acid - Abstract
Summary: Onychomycosis is a common fungal infection in dermatology clinics. The commonly used diagnostic method, potassium hydroxide (KOH) direct microscopy, does not have a high‐positive detection rate. Therefore, a new diagnostic method is needed to confirm onychomycosis. The objective of this research was to use fluorescent brightener 85 (FB 85), a new fluorescent reagent for fungi detection, and to evaluate this new method based on the diagnostic positive rate, accuracy and efficiency in suspected onychomycosis compared with the KOH method. Subungual debris was collected from clinically suspected onychomycosis cases and divided into two parts. The parts were examined by FB 85 and 10% KOH solution, respectively. In total, 108 patients with suspected onychomycosis were recruited. The positive rates of FB 85 and KOH were 88.9% and 55.6%, respectively. The patients showed significant statistical differences (
P < .001). Compared with the KOH method, the FB 85 fluorescent method was an accurate and efficient method with a higher positive rate. This method could increase the diagnostic accuracy and efficiency of onychomycosis detection. [ABSTRACT FROM AUTHOR]- Published
- 2018
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27. Clinicomycological pattern of dermatomycosis – A two-year retrospective study in a tertiary care hospital of north India
- Author
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Reyaz A Khan, Shoaib Mohmad Khan, Anjum Farhana, and Umara Amin
- Subjects
medicine.medical_specialty ,business.industry ,Direct microscopy ,Retrospective cohort study ,Dermatomycosis ,Tertiary care hospital ,North india ,medicine.disease ,Dermatology ,medicine.anatomical_structure ,Epidemiology ,medicine ,Nail (anatomy) ,Tinea capitis ,business - Abstract
Fungal infections are a growing cause of concern in both hospital and non-hospital settings all over the world. Fungal infections are often characterized by the location of the infection. These may be referred to as superficial, subcutaneous, or systemic, which is also referred to as deep-seated. Dermatomycosis are superficial fungal infections of the skin & or its appendages.This study was undertaken to determine: 1) The predominant dermatophytes and non dermatophytes causing dermatomycosis. 2) The clinicomycological profile of dermatomycosis.641 samples from clinically suspected cases of dermatomycosis including the skin, hair, and nail samples were collected. All the relevant clinical, demographic, and epidemiological details were noted. Samples were then subjected to direct microscopy and fungal culture.Of the total 641 cases, 337 (52.6%) were males and 304 (47.4) were females (Table 1). The most commonly affected age group was 20–39 years (51%). Out of total, 340 (53%) were nail samples, 283 (44.1%) were skin samples, and 18 (2.9%) were hair samples. Onychomycosis was the commonest clinical presentation (48.8%) followed by Scaly skin lesions (13.1%). Moreover, Tinea corporis was seen in 10.3%, Tinea cruris in 5.3% cases. KOH wet mount was performed on all 641 samples with 230 (35.9%) showing positive results. Whereas, 312 (48.7%) were positive by culture. the most common Fungi isolated in our study were Dermatophytes n=154 (49.4%), followed by Non-dermatophyte molds (NDMs) n=93 (29.8%) and Yeasts n=65 (20.8%).A combination of direct microscopy and culture was found to be superior than direct microscopy and culture alone. The recovery of NDMs and yeasts from routine dermatological samples in addition to the usual suspects, dermatophytes, also increases the awareness and suspicion among clinicians and mycologists to look beyond dermatophytes as the lone cause of superficial skin infections. Additionally, given the geographical location of Kashmir valley and its temperate climate with extremely cold winters (November to March) and a relatively milder summer with moderate humidity levels, when compared to the rest of northern Indian states doesn’t make it a suitable environment for fungal infections, more so the superficial mycosis. That said, people at risk are always vulnerable to develop fungal infections.
- Published
- 2021
28. Prevalence and associated risk factors of malaria infection among pregnant women attending antenatal clinic in Yola North, Adamawa State, Nigeria
- Author
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N.M. Zamdayu, L.B. Gundiri, J.L. Daniel, S.M. Pukuma, L.M. Augustine, and N. Enock
- Subjects
Rapid diagnostic test ,business.industry ,Direct microscopy ,Attendance ,Gestational age ,Low transmission ,medicine.disease ,Civil servants ,Second trimester ,parasitic diseases ,medicine ,business ,Malaria ,Demography - Abstract
This study determined the prevalence and associated risk factors of malaria infection among pregnant women attending antenatal clinic in Yola North, Adamawa State, Nigeria, between December 2017 and April 2018. Both direct microscopy and rapid diagnostic test were employed in this study to establish infection. Structured questionnaires were used to collect information from the participants. The study showed that 63 pregnant women were positive for malaria infection out of the 270 sampled. Overall malaria prevalence of 23.3% was recorded during this study. There was no significant association between malaria infection and the clinics sampled (p>0.05). Results have shown that the prevalence was relatively low, and this could be attributed to low transmission rate of malaria during dry season in Adamawa State. In relation to parity, prevalence of malaria were; primigravidae (21.6%), secundravidae (20.0%) and multigravidae (26.7%). Similarly, in relation to gestational age prevalence was first trimester (27.9%), second trimester (25.0%) and thirdtrimester (20.0%). There were no significant associations between malaria infection, parity and gestational age (p>0.05). The age-group 38 ≥ years had highest prevalence while 15-23 years had least. There was no significant association between malaria infection, educational level and occupation (p>0.05). Relating to the participants occupation, prevalence of malaria was reported as 30.0, 22.9 and 23.5% for civil servants, unemployed and business respectively. It is therefore recommended that early attendance and utilization of focused antenatal care services by all pregnant women will reduce the risk of malaria in pregnancy. Keywords: Risk factors; malaria; pregnant women; antenatal; Yola North.
- Published
- 2021
29. Validation of a lateral flow immunochromatographic assay for tinea unguium diagnosis
- Author
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Takashi Mochizuki, Yasuki Hata, Ryoji Tsuboi, Shiomi Kawano, Wataru Naka, Yosuke Suzuki, Taizo Hamaguchi, Haruo Ito, and Ryuji Maruyama
- Subjects
Immunoassay ,medicine.medical_specialty ,biology ,business.industry ,Arthrodermataceae ,Direct microscopy ,Tinea Pedis ,Dermatology ,General Medicine ,Gold standard (test) ,Tinea unguium ,Trichophyton rubrum ,biology.organism_classification ,medicine.disease ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Trichophyton ,Nail disease ,030220 oncology & carcinogenesis ,Onychomycosis ,medicine ,Humans ,business - Abstract
Tinea unguium is a common nail disease caused by dermatophytes. Although direct potassium hydroxide (KOH) microscopy and fungal culture are considered the gold standard for diagnosing this disease, their accuracy is insufficient. A lateral flow immunochromatographic assay (LFIA) kit, using a monoclonal antibody against Trichophyton rubrum, was developed and its sensitivity was recently improved 50% in vitro relative to its earlier version. The present study aimed to validate the clinical utility of this improved LFIA kit for diagnosing tinea unguium in comparison with direct KOH microscopy. A similar trial was simultaneously performed using scale samples from patients with tinea pedis to determine the assay's diagnostic potential. Nail samples, approximately 2 mg in weight, were collected from 112 non-treated tinea unguium patients and 56 non-tinea unguium patients. Samples from 25 tinea pedis patients and 20 non-tinea pedis patients were also collected. The sensitivity and specificity of the LFIA kit for tinea unguium was 84.8% (95/112) (95% confidence interval [CI], 76.8-90.9) and 83.9% (47/56) (95% CI, 71.7-92.4), respectively. The inconsistency rate was 15.5% (26/168) (95% CI, 10.4-21.9). The sensitivity and specificity of the LFIA kit for tinea pedis was 84.0% (21/25) and 100.0% (20/20), respectively. These results suggest that for diagnosing tinea unguium, the LFIA kit is a useful supplement to, but not a replacement for, direct KOH microscopy. For definitive diagnosis of suspected cases, appropriate sampling, repeated examinations, and a combination of diagnostic techniques are essential.
- Published
- 2021
30. Comparative study between Direct Microscopy and Indirect Haemagglutination Methods Used in Diagnosis of Urinary Schistosomiasis
- Author
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Elamin Abdelkarim Elamin, Musab Hussin Mohamed, and Mohammed Elzubair Abdallah
- Subjects
Pathology ,medicine.medical_specialty ,Indirect hemagglutination ,Urinary Schistosomiasis ,business.industry ,Direct microscopy ,Medicine ,business - Published
- 2021
31. Socio-Demographic Determinants Associated with Blastocystis Infection in Arequipa, Peru
- Author
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Victor Vásquez-Huerta, Elí Martínez-Barrios, Ricardo Cartillo-Neyra, Jorge Ballón-Echegaray, Renzo Salazar-Sánchez, and Kasandra Ascuña-Durand
- Subjects
Adult ,Male ,Sociodemographic Factors ,Adolescent ,Social Determinants of Health ,Socio demographics ,Blastocystis Infections ,Feces ,Young Adult ,Human gut ,Socio-Demographic Determinants ,Risk Factors ,Water Supply ,Virology ,Environmental health ,Peru ,Prevalence ,Humans ,Parasite hosting ,Social determinants of health ,Cities ,Child ,Aged ,Aged, 80 and over ,Blastocystis ,biology ,Direct microscopy ,Arequipa ,Infant ,Articles ,Middle Aged ,biology.organism_classification ,Pathogenicity ,Sociological Factors ,Infectious Diseases ,Child, Preschool ,Wet mount ,Latrine ,Protozoa ,Female ,Parasitology ,Infection ,purl.org/pe-repo/ocde/ford#3.03.06 [https] - Abstract
Blastocystis is one of the most common protozoa in the human gut and a zoonotic organism related to unsanitary living conditions. This protozoon shows a broad distribution, unclear symptomatology, and undefined pathogenicity. In Peru, studies report the presence of Blastocystis in many regions, but the highest prevalence levels are reported in Arequipa. The aim of this study was to link Blastocystis infection with social determinants of health. We recruited and surveyed 232 infected and uninfected participants from houses with at least one Blastocystis-infected person. All samples were concentrated by spin concentration method in saline solution, examined by wet mount under light microscopy and confirmed with methylene-stained stool smear. We found a human Blastocystis prevalence of 51.3% in the study sample. We also found statistical associations between Blastocystis infection and peri-urban location in the city as well as the use of alternative non-domiciliary water supplies, suggesting these are risk factors for human Blastocystis infection.
- Published
- 2021
32. Comparative analysis of enzyme-linked immunosorbent assay and direct microscopy for the diagnosis of Giardia intestinalis in fecal samples
- Author
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Shipra Singhal, Vineeta Mittal, Vineeta Khare, and Yengkokpam Ibotomba Singh
- Subjects
Direct microscopy ,enzyme-linked immunosorbent assay ,Giardia intestinalis ,Pathology ,RB1-214 ,Microbiology ,QR1-502 - Abstract
Context: Giardiasis is one of the most common nonviral infections causing diarrheal illness worldwide. In this prospective cross-sectional study, we evaluated the RIDASCREEN ® Giardia kit for detection of Giardia intestinalis in stool samples and compared the results with direct microscopy. Materials and methods: A total of 360 fecal samples were collected. They were then processed by wet film, iodine preparation and an enzyme-linked immunosorbent assay (ELISA) kit to determine the presence of Giardia trophozoites and cysts. Statistical analysis was performed by sensitivity, specificity, positive predictive value, negative predictive value and diagnostic accuracy. Results and Conclusion: Of the 360 cases, 17.2% samples were positive for Giardia by direct microscopy and 23.6% were found to be positive by ELISA (sensitivity ~97%), but specificity was ~92% only. Because of less specificity, we need to perform ELISA in congruence with direct microscopy, etc. Further studies need to be performed on a larger sample size using other molecular tests in order to get more accurate estimations.
- Published
- 2015
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33. Evaluation of Dermatophyte Test Medium and Sabouraud Dextrose Agar for Isolation of Dermatophyte Species
- Author
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Sohaila Mushtaq, Iffat Javed, Rubeena Hafeez, Kanwal Hassan Cheema, and Majid Rauf Ahmad
- Subjects
Chlortetracycline ,Veterinary medicine ,food.ingredient ,Direct microscopy ,General Medicine ,Biology ,Isolation (microbiology) ,Time saving ,medicine.disease_cause ,Isolation rate ,Dermatophyte test medium ,food ,Dermatophyte ,medicine ,Agar ,medicine.drug - Abstract
Background and Objective: Dermatophyte infections require laboratory diagnosis before treatment is started. Although direct microscopy is routinely performed but culture of dermatophytes is the gold standard. However, it takes about 4 weeks for species identification on primary media. Our aim was to compare dermatophyte test medium (DTM) as a screening medium for the isolation of dermatophytes in comparison with sabouraud dextrose agar (SDA). Methods: It was a comparative study carried out at the Department of Microbiology of Post Graduate Medical Institute, Lahore over a period of nine months. Samples were collected from one hundred patients with clinically suspected dermatophytoses after taking informed written consent. The samples were examined microscopically and then inoculated on two types of culture media, one Sabouraud dextrose agar (SDA) with added chloramphenicol, gentacin and cycloheximide and other dermatophyte test medium (DTM) with added chlortetracycline, gentacin and cyclohexamide. Results: Fungal growth was observed in fifty-six samples on culture. Out of the fifty-six positive on cultures, nineteen were that of dermatophytes. Out of n = 100 patients, ten were positive on SDA while n = 14 dermatophyte species were able to grow on DTM. A significantly higher positivity (P ³ 0.05) for isolating dermatophytes was observed by DTM as compared to SDA. DTM was able to isolate (71%) of the dermatophytes in first 10 days. Isolation rate of dermatophyte species was higher (73.68%) on DTM as compared to SDA which was 52.6%. Conclusion: Authors recommend the use of dermatophyte test medium for the primary isolation and identification of dermatophyte species to be more effective and time saving. How to Cite This: Ahmad MR, Javed I, Mushtaq S, Hafeez R, Cheema KH. Evaluation of dermatophyte test medium and sabouraud dextrose agar for isolation of dermatophyte species. Biomedica. 2020; 36 (4): 362-6.Doi: https://doi.org/10.51441/BioMedica/5-80.
- Published
- 2020
34. A Comparative Study of Potassium Hydroxide Wet Mount, Calcofluor White Staining and Culture for the Diagnosis of Keratomycosis
- Author
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Pallati Alekhya, C Aruna Sunder, and Prathiba
- Subjects
0301 basic medicine ,Potassium hydroxide ,Veterinary medicine ,business.industry ,030106 microbiology ,Direct microscopy ,General Medicine ,Calcofluor-white ,Stain ,Staining ,law.invention ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Gram staining ,chemistry ,law ,Wet mount ,parasitic diseases ,Medicine ,030212 general & internal medicine ,business ,Calcofluor White Stain - Abstract
Background: The incidence of keratomycosis has increased dramatically in recent years. Early diagnosis and treatment of keratomycosis are important in preventing further complications. Direct microscopic techniques are time-saving for diagnosing keratomycosis when compared to culture methods. This study was carried out to determine the sensitivities of potassium hydroxide (KOH) wet mount, Gram stain and Calcofluor white (CFW) stain plus KOH wet mount by taking culture as the gold standard. Methods: Corneal scrapings were collected from 150 clinically suspected patients with keratomycosis. Demographic profile was collected and analyzed. Results: Of these patients, 67.33% were male, 24% were in the age group of 51-60 years, 70% were ruralresidents, 44% were agricultural workers, and 60% presented with a history of corneal trauma. Laboratory investigations have revealed that 29.33% (44 cases) were culture positive. In other words, Fusarium spp. was isolated in 17 cases, Aspergillus spp. in 14 cases, phaeoid fungi in 3 cases and unidentified fungi in 10 cases. The positivity of CFW stain plus KOH wet mount, KOH wet mount, and Gram stain was 30%, 23.3%, and 20%, respectively. Sensitivities of CFW stain plus KOH wet mount, KOH wet mount, and Gram stain were 79.55%, 54.55%, and 47.62%, respectively. Conclusion: Post-investigative analysis has revealed that CFW stain plus KOH wet mount was better than KOH wet mount alone in demonstrating fungal pathogens. Therefore, early diagnosis of keratomycosis by meticulous examination of corneal scrapings by direct microscopy specifically using CFW stain plus KOH wet mount and institution of antifungal therapy may limit ocular morbidity and disastrous sequelae among these patients.
- Published
- 2020
35. Seroprevalence of fascioliasis in the eastern region of Turkey: an eight-year investigation
- Author
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Yunus Emre Beyhan and Hasan Yilmaz
- Subjects
Adult ,Male ,0301 basic medicine ,Fascioliasis ,medicine.medical_specialty ,Adolescent ,Turkey ,030231 tropical medicine ,Antibodies, Helminth ,Disease ,Serology ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Seroepidemiologic Studies ,Hepatica ,Internal medicine ,Animals ,Humans ,Medicine ,Seroprevalence ,In patient ,Child ,biology ,business.industry ,Public health ,Direct microscopy ,Infant, Newborn ,Gastroenterology ,Direct observation ,Infant ,Middle Aged ,030108 mycology & parasitology ,biology.organism_classification ,Fasciola ,Child, Preschool ,Female ,Original Article ,business - Abstract
Background/aims Fascioliasis is a zoonotic disease and one of the most neglected infectious diseases in humans. Its prevalence has been increasing significantly during the last decades. This study aimed to investigate the prevalence of fascioliasis using direct microscopy and indirect hemagglutination (IHA) technique in a region in Eastern Anatolia of Turkey. Material and methods This study was conducted on the serum samples obtained from 817 patients (372 male and 445 female) between 2011 and 2018, who were suspected to have fascioliasis. IHA was used to investigate anti-Fasciola hepatica antibodies in the serum samples. Stool specimens were obtained from the seropositive patients and were examined with the native-Lugol method to identify the parasites. Results It was determined that 5.5% (45/817) of all the patients were F. hepatica seropositive and 6.4% (52/817) were borderline positive. Positivity was 5.7% (21/372) among males and 5.4% (24/445) among females, and the difference in the infection rates between these groups was not significant (p=0.913). The highest number of patients who applied to the clinic was in the "45 and over" age group (317 patients); 270 patients were in the 25-44 age group. A maximum positivity of 10.3% was observed in the 7-14 age group. Conclusion Previously, fascioliasis was considered a rare infection in humans; however, it has emerged as an important public health problem in the world. Considering fascioliasis in patients with clinical symptoms, not only with direct observation but also using serological methods, would be effective in early diagnosis and treatment of the disease.
- Published
- 2020
36. Subtype Distribution of Blastocystis in Pregnant Women and Analysis of Possible Risk Factors
- Author
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Erdogan Malatyali, Hatice Ertabaklar, Funda Sankur, Melike Nur Akin, and Sema Ertuğ
- Subjects
Blastocystis ,Pregnancy ,Genetic diversity ,biology ,business.industry ,Direct microscopy ,Physiology ,General Medicine ,biology.organism_classification ,medicine.disease ,DNA extraction ,law.invention ,Obstetrics and gynaecology ,law ,Genotype ,medicine ,business ,Polymerase chain reaction - Abstract
Objective Since the identification of Blastocystis subtypes (ST) in the last decade, much has been learned about the genetic diversity of Blastocystis isolates in different populations, except pregnant women. The objective of this study is to investigate the genetic diversity of Blastocystis in pregnant women and analyse some demographic factors. Methods The faecal samples from 100 pregnant women were collected at an Obstetrics and Gynecology Department in Mugla, Turkey. Thereafter, Blastocystis positivity was detected by direct microscopy and culture. The positive cultures were subjected to DNA isolation, and the Blastocystis barcode region was amplified with polymerase chain reaction. Next, the sequences were queried against GenBank nucleotide and Blastocystis STs (18S) databases. Results Blastocystis was detected in 14% (14 out of 100) of the faecal samples by culture and 10% (10 out of 100) of the samples by direct microscopy. Nine of Blastocystis isolates (64.4%) were ST3, three (21.4%) were ST1 and two (14.2%) were ST2. Neither the demographic features nor the gastrointestinal symptoms were statistically related to Blastocystis infection. Conclusion The findings in this study agreed with the most of the previous human studies that found ST3 as the most abundant genotype. This study reported the frequency of Blastocystis in pregnant women and highlighted the importance of comprehensive studies with more cases of Blastocystis during pregnancy.
- Published
- 2020
37. Copro-Antigen versus Classical Microscopy as Diagnostic Tool for Giardia Lamblia Infection in Egyptian Patients.
- Author
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Shahat, Samir A., Sallam, Ahmed M., Gad, Hesham M., and Abdallah, Mohammed H.
- Subjects
- *
GIARDIA lamblia , *EGYPTIANS , *MEDICAL microscopy , *DIAGNOSIS of diarrhea , *CLINICAL pathology , *ENZYME-linked immunosorbent assay , *DISEASES - Abstract
Background: Giardia lamblia, a flagellate protozoa, is a one of the most common causes of non-viral (parasitic) diarrheal illness in humans. Laboratory diagnosis mainly consists of direct microscopic examination of stool specimen for trophozoites and cysts. However, due to intermittent fecal excretion of the parasite, the patient may be misdiagnosed, continue excreting the parasite and infecting others. Therefore, other methods of diagnosis should be looked for, which overcome the drawbacks of microscopy when used alone for diagnosis. The present study aimed to evaluate the efficacy of coproantigen detection by ELISA test in comparison to direct microscopy in the diagnosis of G. lamblia in stool specimens from patients with diarrhea and other gastrointestinal symptoms. Patients and methods: stool samples were collected form 250 child included in the present study (150 symptomatic and 100 apparently healthy as a control group) aged between 1-10 years old, and subjected for direct microscopic examination and ELISA test for copro-antigen detection. Results: out of 250 stool samples, 53 specimens (21.2%) were positive for Giardia by direct microscopy, while 68 specimens (27.2%) were positive by ELISA test. Conclusion: ELISA test for copro-antigen detection in stool samples is a rapid and effective method with high sensitivity and specificity for diagnosis of giardiasis in stool specimens even when the parasitic count is low, thus reducing the chances of missing even in the asymptomatic cases. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
38. Comparative study of Smear Microscopy, Rapid Slide Culture, and Lowenstein - Jensen culture in cases of pulmonary tuberculosis in a tertiary care hospital
- Author
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Ravish Kumar Muddaiah, Pratibha Malini James, and Ravikumar Kadahalli Lingegowda
- Subjects
Direct microscopy ,Lowenstein - Jensen media ,pulmonary tuberculosis ,rapid slide culture ,Medicine - Abstract
Background: Tuberculosis (TB), a dreadful disease known to mankind continues to be a problem in a developing country like India. The incidence of people getting infected with TB is on the rise due to compounding factors like coinfection with the human immunodefiency virus and multidrug-resistant strains. There is a definitive need for early diagnosis and treatment of TB to curb transmission of the infection. Direct smear microscopy, though cheap and rapid, lacks sensitivity. Isolation of Mycobacterium tuberculosis in culture requires a long time, because of which there is a need for a rapid method which has good sensitivity and specificity for the detection of M. tuberculosis. The present study was undertaken to determine the test which diagnoses TB rapidly and to compare the sensitivity of smear microscopy, concentration method, rapid slide culture, and Lowenstein - Jensen (LJ) culture. Materials and Methods: Sputum samples of 200 patients were subjected to direct smear and concentration by modified Petroff′s method. The concentrated sputum was also taken for slide culture using human blood medium and inoculated on LJ media. Results: LJ culture was positive in 47 (23.5%) cases, of which three were nontubercular mycobacteria. Using LJ culture as the standard method, the sensitivity of direct smear, concentration method, and rapid slide culture method was 68, 83, and 89%, respectively, and specificity was 100% in all the three tests. Conclusion: Rapid slide culture showed good sensitivity which was comparable to and next in efficacy to LJ culture and this technique can be adopted in the Revised National Tuberculosis Control Program (RNTCP) as it is a rapid, cheap, sensitive, and specific method.
- Published
- 2013
39. Prevalence of dermatophytes in patients attending a teaching hospital in Hyderabad, South India
- Author
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L Sadanand Narayan, Aarthi Vara, and Rozina Arshi Khan
- Subjects
0301 basic medicine ,medicine.medical_specialty ,Veterinary medicine ,business.industry ,Public health ,030106 microbiology ,Direct microscopy ,Teaching hospital ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,Medicine ,In patient ,Trichophyton species ,business ,Medical science - Abstract
Introduction: Dermatophytoses are a group of superficial fungal infections of keratinized tissues. Though they do not cause mortality they cause morbidity and pose a major public health problem especially in tropical countries like India. Objectives: The present study is done to know the prevalence of dermatophytes and to identify the causative agents in Hyderabad area. Materials and Methods: A total of 180 samples were collected for a period of 1 year from infected skin, hair, and nails. Samples were collected under aseptic conditions and were then subjected to direct microscopy by KOH mount and culture on SDA. Results: Dermatophytes were seen more in males (126/180). Direct microscopy by KOH mount revealed presence of fungal elements in (144/180) of samples. T.mentagrophytes was the most predominant isolate followed by T.rubrum and T.violaceum. Conclusion: Dermatophytic infections are worldwide in distribution with superficial mycoses being more prevalent in India where heat and moisture play an important role. Dermatophytosis has been reported throughout the year in the present study locality and an increase in prevalence of certain species was found. Keywords: Dermatophytoses, Keratinophilic fungi, Trichophyton species.
- Published
- 2021
40. Detection of tuberculous meningitis by various microbiological modalities at a tertiary care hospital in north India
- Author
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Ilham Iqbal, Humaira Bashir, Anjum Farhana, and Danish Zahoor
- Subjects
medicine.medical_specialty ,GeneXpert MTB/RIF ,biology ,business.industry ,Direct microscopy ,Tertiary care hospital ,medicine.disease ,North india ,biology.organism_classification ,Tuberculous meningitis ,Staining ,Mycobacterium tuberculosis ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Concomitant ,medicine ,030212 general & internal medicine ,business ,030217 neurology & neurosurgery - Abstract
Background & Objectives: Tuberculous meningitis is a common infection of the CNS, posing significant diagnostic and management challenges. Death in TBM patients is strongly associated with delay in diagnosis and treatment. Since, any single conventional or automated method for diagnosis of TBM has limited sensitivity; the main objectives of this study was – 1. Detect TBM by a combination of Direct Microscopy by ZN Staining, Culture by solid (LJ) and liquid media (BacT/Alert), besides GeneXpert (RTPCR) in clinically suspected cases.; 2. Evaluate the role of GeneXpert for detection of Mycobacterium tuberculosis in CSF and demonstrate the sensitivity, specificity, PPV and NPV of GeneXpert in comparison with a set composite reference standard. Materials and Methods: This was a prospective cross-sectional study carried out by the Department of Microbiology, GMC, Srinagar, from August ’17 to September ’19 CSF samples of 450 patients suspected of TBM were included in the study. CSF volume was devised which comprised of culture, ZN staining and empirical diagnosis. The samples were tested by ZN staining, solid culture, liquid culture and GeneXpert MTB/RIF using proper protocols. Patient details were obtained on a preformed proforma. Results: Of the 450 suspected patients, 10% had Definitive TBM. The median age was 35 years with an almost equal male to female ratio. The sensitivities of ZN staining, Solid culture, liquid culture and Gene Xpert were 3%, 38%, 76% and 63% respectively. The specificity was 100% for all these tests, 95% CI being, 99-100%. The NPV was 84.02%, 100%, 91% and 93.6% whereas, the PPV was 84.89%, 100%, 100% and 99.1% respectively. Rifampicin resistance was positive in 2%. 95% cases had a very low bacillary load and 2.2% patients showed low and medium bacillary load. 12% patients had concomitant pulmonary TB and 10% with other forms of extrapulmonary TB. Conclusion: Gene/Xpert as a frontline diagnostic tool, is a game changer. It abridges presumpt
- Published
- 2020
41. Human Ocular Onchocerca lupi Infection Diagnosed in Norway
- Author
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Anne Regine Skogen, Tiril Sandell, Tore Lier, and Frank Olav Pettersen
- Subjects
medicine.medical_specialty ,business.industry ,Risk of infection ,lcsh:R ,030231 tropical medicine ,Onchocerca lupi ,Direct microscopy ,onchocerca lupi ,lcsh:Medicine ,zoonosis ,Diagnostic tools ,medicine.disease ,Asymptomatic ,Microfilaria ,Dermatology ,Zoonotic disease ,03 medical and health sciences ,0302 clinical medicine ,subconjunctival lesion ,medicine ,ocular nematode ,medicine.symptom ,business ,Onchocerciasis ,030217 neurology & neurosurgery - Abstract
Introduction: Zoonotic Onchocerca lupi infection is a rare but emerging zoonotic disease affecting the eye, subcutaneous tissue and subdural cervical spine. Endemic areas of O. lupi are East and Central Europe, Turkey, Iran and the Northwest of the USA. Thirteen confirmed cases have been published in the world literature. Case Presentation: We present a case of subconjunctival O. lupi infection in the left eye of a Norwegian male. The infection was most likely imported from Turkey. The diagnosis was verified by direct microscopy and molecular analyses with polymerase chain reaction (PCR) with subsequent sequencing. The worm did not contain microfilaria and was surgically removed. The patient was treated with tapering doses of topical steroids. At 6 months follow-up, he was asymptomatic. Conclusion: Increasing numbers of O. lupi infections are reported and it is not clear whether the increasing number of infections is true or due to availability of novel diagnostic tools that correctly identify the cases. Humans cannot eliminate their exposure to vector-borne zoonotic diseases and increasing globalization increases the risk of infection. Both physicians and laboratory staff should be aware of the existence of zoonotic onchocerciasis in their countries.
- Published
- 2020
42. Outbreak of Cyclosporiasis in Korean Travelers Returning from Nepal
- Author
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Sang Eun Lee, Myoung-Ro Lee, Da-Won Ma, Ku Bora, and Shin-Hyeong Cho
- Subjects
Diarrhea ,Male ,0301 basic medicine ,Veterinary medicine ,Traveler's diarrhea ,030106 microbiology ,Biology ,Brief Communication ,Polymerase Chain Reaction ,Cyclospora cayetanensis ,Disease Outbreaks ,Foodborne Diseases ,Feces ,protozoa ,03 medical and health sciences ,0302 clinical medicine ,Nepal ,Republic of Korea ,parasitic diseases ,medicine ,Humans ,Species identification ,030212 general & internal medicine ,Cyclosporiasis ,Travel ,Korea ,Direct microscopy ,Outbreak ,Middle Aged ,traveler’s diarrhea ,medicine.disease ,biology.organism_classification ,Cyclospora ,PCR ,Infectious Diseases ,Female ,Parasitology ,medicine.symptom ,Nested polymerase chain reaction - Abstract
Cyclospora cayetanensis is an apicomplexan protozoan and is one of the most common pathogens causing chronic diarrhea worldwide. Eight stool samples with diarrheal symptom out of 18 Korean residents who traveled to Nepal were obtained, and examined for 25 enteropathogens including 16 bacterial species, 5 viral species, and 4 protozoans in stool samples as causative agents of water-borne and food-borne disease. Only C. cayetanensis was detected by nested PCR, and 3 PCR-positive samples were sequenced to confirm species identification. However, the oocysts of C. cayetanensis in fecal samples could not be detected by direct microscopy of the stained sample. As far as we know, this is the first report of a group infection with C. cayetanensis from a traveler visiting Nepal, and the second report of a traveler’s diarrhea by C. cayetanensis imported in Korea.
- Published
- 2020
43. Şanlıurfa’da Leishmania infantum’un Etken Olduğu Kutanöz Leyşmanyazis (Şark Çıbanı) Olguları
- Author
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Şahin Toprak, Yusuf Özbel, Nebiye Yentur Doni, Nermin Uluca, Fadile Yildiz Zeyrek, and Seray Töz
- Subjects
Microbiology (medical) ,medicine.medical_specialty ,Leishmania tropica ,General Immunology and Microbiology ,biology ,medicine.diagnostic_test ,business.industry ,Direct microscopy ,medicine.disease ,biology.organism_classification ,Leishmania ,Dermatology ,Giemsa stain ,Infectious Diseases ,Fine-needle aspiration ,Cutaneous leishmaniasis ,parasitic diseases ,Epidemiology ,medicine ,Leishmania infantum ,business - Abstract
Leishmaniases are a group of vector-borne diseases, and two clinical forms, visceral (VL) and cutaneous leishmaniasis (CL, Oriental sore), are seen in Turkey. While VL cases are recorded as 20-25 per year, CL cases are reported around 2000 per year, and nearly half of CL cases were recorded in Sanliurfa province. Therefore, by knowing the epidemiology of the disease in Sanliurfa province, it is possible to develop control measures and reduce the total number of cases across the country. Although Leishmania tropica is known as the main causative agent in Sanliurfa, other Leishmania species have also been identified as a result of mass human movements in the last 10 years. In this study, we aimed to present the first CL cases caused by Leishmania infantum in Sanliurfa. A total of 14 cases, which were admitted with the suspicion of CL and diagnosed as positive by direct microscopy and/or real-time ITS1-PCR using lesion aspiration samples are included in the study. Two or more smears were prepared from the samples taken from the lesions of the patients by fine needle aspiration. One of the smears was stained with Giemsa stain after fixation with methyl alcohol and examined under the light microscope at x1000 magnification for the presence of Leishmania amastigotes. DNA isolation was made from the other unstained preparations with a commercial kit (Qiagen DNeasy, Germany) according to the recommendations of the manufacturer. The real-time ITS1-PCR method was performed by using the Old World species-specific primers and probes. As a result, by the identification of the species with real-time ITS1-PCR, it was determined that the causative agent was L.infantum in five cases, L.major in one case and L.tropica in eight cases. It was learned that four of the cases in which L.infantum was detected as the causative agent were local, one was Syrian and they lived in the city center. Also two of the eight cases, which were identified as L.tropica, were Syrian and six of them were domestic cases and all of them lived in the city center. While all 14 patients included in the study were positive with real-time ITS1-PCR, amastigotes were detected in 10 cases only. The cases of CL presented in this study are the first cases caused by L.infantum reported from Sanliurfa, and are important in terms of concretely demonstrating the effect of mass human mobility and migration on the epidemiology of the infection.
- Published
- 2020
44. Noninvasive Assessment of Mycotic Nail Tissue Using an Ultraviolet Fluorescence Excitation Imaging System
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Peter A. Philipsen, Walfre Franco, Vinzent Kevin Ortner, and Merete Haedersdal
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Nail Infection ,business.industry ,Arbitrary unit ,Direct microscopy ,Dermatology ,Primary care ,01 natural sciences ,010309 optics ,030207 dermatology & venereal diseases ,03 medical and health sciences ,Autofluorescence ,Fluorescence intensity ,0302 clinical medicine ,0103 physical sciences ,Medicine ,Surgery ,Ultraviolet fluorescence ,business ,Reference standards ,Biomedical engineering - Abstract
BACKGROUND AND OBJECTIVES Mycological diagnosis of onychomycosis is based on direct microscopy using external fluorophores to visualize fungal tissue in nail samples and agar culture. Ultraviolet fluorescence excitation imaging (u-FEI) has shown potential in monitoring biological processes by exploiting variations in autofluorescence. This study aimed at assessing the potential of a handheld u-FEI system as a practical screening tool for fungal nail infections. STUDY DESIGN/MATERIALS AND METHODS Ninety samples from 29 patients with microscopy-confirmed fungal infection and 10 control samples from healthy participants were collected (n = 100). Using a prototype u-FEI system (single bandpass 25 mm filter with a central pass wavelength of 340 nm and a bandwidth of 12 nm, 295 nm excitation flash, resolution of 640 × 480), images of all samples were acquired under standardized conditions. Average and maximum fluorescence intensity image values in arbitrary units (AU) of manually delineated regions of interests were quantitated and statistically assessed for significant differences between healthy and mycotic samples. RESULTS UV-images clearly depicted all 100 nail samples, with a visibly stronger signal in infected samples. Statistically significant differences (P 0.9). Analysis of fluorescence measurements of the reference standard demonstrated very low variation (coefficient of variation = 0.62%) CONCLUSION: Quantitation of u-FEI intensities enables differentiation between healthy and mycotic nail samples, constituting a potential point-of-care tool for cost-effective screening for onychomycosis at a primary care level. Lasers Surg. Med. © 2020 Wiley Periodicals LLC.
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- 2020
45. Clinicians’ challenges in managing patients with invasive fungal diseases in seven Asian countries: An Asia Fungal Working Group (AFWG) Survey
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Ruoyu Li, Yee-Chun Chen, Mitzi Marie M Chua, Pei-Lun Sun, Methee Chayakulkeeree, Porpon Rotjanapan, Zhengyin Liu, Ban Hock Tan, Retno Wahyuningsih, Atul Patel, and Arunaloke Chakrabarti
- Subjects
0301 basic medicine ,Microbiology (medical) ,China ,medicine.medical_specialty ,Treatment response ,Antifungal Agents ,Medical mycology ,Philippines ,Antifungal drugs ,030106 microbiology ,Taiwan ,India ,Mycology ,Education ,lcsh:Infectious and parasitic diseases ,Mannans ,Antifungal management strategies ,03 medical and health sciences ,0302 clinical medicine ,Surveys and Questionnaires ,medicine ,Asian country ,Treatment guidelines ,Humans ,Candidiasis, Invasive ,lcsh:RC109-216 ,030212 general & internal medicine ,Management practices ,Singapore ,Education, Medical ,business.industry ,Direct microscopy ,Galactose ,Mycology practice ,General Medicine ,Thailand ,medicine.disease ,Infectious Diseases ,Indonesia ,Infectious disease (medical specialty) ,Family medicine ,Clinical Competence ,business ,Invasive Fungal Infections ,Febrile neutropenia - Abstract
Background Invasive fungal diseases (IFD) are a serious threat, but physicians in Asia lack access to many advanced diagnostics in mycology. It is likely that they face other impediments in the management of IFD. A gap analysis was performed to understand the challenges Asian physicians faced in medical mycology. Methods The Asia Fungal Working Group (AFWG) conducted a web-based survey on management practices for IFD among clinicians in China, India, Indonesia, Philippines, Singapore, Taiwan and Thailand. Findings Among 292 respondents, 51.7% were infectious disease (ID) specialists. Only 37% of respondents had received formal training in medical mycology. They handled only around 2–4 proven cases of each fungal infection monthly, with invasive candidiasis the most common. For laboratory support, the majority had access to direct microscopy (96%) and histopathology (87%), but galactomannan and azole levels were available to 60% and 25% of respondents, respectively. The majority (84%) used clinical parameters for treatment response monitoring, and 77% followed the Infectious Diseases Society of America guidelines. The majority (84%) did not use the services of an ID physician. Where febrile neutropenia was concerned, 74% of respondents used the empirical approach. Only 30% had an antifungal stewardship program in their hospital. Eighty percent could not use preferred antifungals because of cost. Interpretation The survey identified inadequacies in medical mycology training, non-culture diagnostics, access to antifungal drugs, and local guidelines as the major gaps in the management of IFDs in Asian countries. These gaps are targets for improvement.
- Published
- 2020
46. Current methods for microbiological diagnosis of acute central nervous system infections
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Kalchev, Yordan and Murdjeva, Mariana
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neuroinfection ,CNS infections ,direct microscopy ,latex-agglutination test ,multiplex PCR ,CSF culture - Abstract
The incidence of infections affecting the central nervous system has increased in recent years, making neuroinfections a current global health problem. The central nervous system is quite well protected from the external and internal environments, although it is susceptible to infection by a wide variety of pathogens. The etiological diversity further complicates the management of such infections because it is important to identify correctly the specific cause in order to choose the most appropriate antimicrobial therapy. Diagnosis is made not only based on clinical and epidemiological data but also on the results of clinical laboratory and microbiological examination of cerebrospinal fluid. This article aims to review current microbiological methods in the diagnosis of acute central nervous system infections and help healthcare providers to recognize their advantages and limitations in order to manage their patients appropriately.
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- 2022
47. Rapid Slide Culture: Relevance to the Modern Day Diagnosis of Tuberculosis
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Sanjeev H., Karnaker Vimal K., Rai Rekha, Pai Asha K.B., Ganesh H.R., and Krishnaprasad M.S.
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rapid slide culture ,direct microscopy ,lj culture ,Medicine - Abstract
Background: Tuberculosis is probably the most important infectious disease of human beings. Early diagnosis of tuberculosis and initiating prompt treatment has been the mainstay in interrupting the transmission of the infection to others in the community. Aim: The present study was aimed at evaluating and comparing the different tests which are available for the diagnosis of tuberculosis and at determining their feasibility as diagnostic tests in terms of their effectiveness and affordability. Materials and Methods: 100 sputum samples, 50 samples which were positive for acid fast bacilli (AFB) and 50 samples which were negative for AFB on Ziehl-Neelsen (ZN) staining were included in the study. The sputum was decontaminated and concentrated by the modified Petroff’s method and the deposit which was obtained was inoculated onto plain Lowenstein –Jensen (LJ) slants and the rapid slide culture (RSC) medium. Results: Of the 100 sputum samples which were inoculated onto the RSC and LJ mediums, 64 samples showed growth of Mycobacterium tuberculosis on RSC after a mean incubation period of 7 days and 63 samples showed a positive growth on LJ medium after a mean incubation period of 34 days. Conclusion: RSC is more sensitive as compared to the direct smear examination and as sensitive as the LJ medium for the diagnosis of tuberculosis, but RSC had an advantage of a shorter turn around a period of 7 days.
- Published
- 2012
48. An experimental comparison of methods for somatic cell count determination in milk of various species of mammals
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Oto Hanuš, Kamila Sojková, Kristýna Hanušová, Eva Samková, Miloslav Hronek, Radomír Hyšpler, Jaroslav Kopecký, and Radoslava Jedelská
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cow ,sheep ,goat ,human milk ,somatic cell count (SCC) ,direct microscopy ,Agriculture ,Biology (General) ,QH301-705.5 - Abstract
Somatic cell count (SCC) is important foodstuff, hygienic and health indicator of milk and animal mammary gland. The goal of this paper was to evaluate an ability of chosen methods to reach the SCC reliable results in various biological kinds (species) of milk. The various methods of SCC determination were compared in cow (CM), goat (GM), sheep (SM) and human (HM) milk: direct microscopy (DM); fluoro-opto-electronic (Fossomatic 90; Foss); fluorescent (DCC; De Laval). Used methods had cow milk calibration basically. The DM, Foss and DCC result relations about SCC were very close, mostly > 0.92 (P < 0.001) for CM, GM and SM. In CM the regression equations between methods were near ideal form y = 1x + 0. The mean differences SCC data sets between mentioned methods were small for CM, larger for SM and HM and the largest for GM. It is possible to convert all DCC results in SM, HM and GM to DM or Foss method. The conversion equations were stated from DCC: to DM in cow milk y = 1.1293x − 5.5029; to Foss in goat milk y = 3.603x − 3171.4; to Foss in sheep milk y = 1.3805x − 18.149; to Foss in human milk y = 2.6246x + 158.63. Assesment of conversion equations should be individual laboratory event. Results had relatively good correspondence among DM, Foss and DCC for SCC determination in CM, GM, SM and HM for milk quality control. DCC had lower results in small ruminants as compared to Foss calibrated on CM using DM. DCC in HM had lower results as Foss adjusted by CM at good correlation (0.84; P < 0.001).
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- 2011
- Full Text
- View/download PDF
49. Prevalence of dermatophytosis in animals and antifungal susceptibility testing of isolated Trichophyton and Microsporum species
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Begum, Jubeda and Kumar, Rajesh
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- 2021
- Full Text
- View/download PDF
50. Clinico-Mycological Profile of Onychomycosis: A Study from North-Western, India
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Richa Sharma, Richa Saxena, Ved Prakash Mamoria, and E. Rajni Sabharwal
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medicine.medical_specialty ,Nail clippings ,biology ,business.industry ,Trichophyton mentagrophyte ,Direct microscopy ,Trichophyton rubrum ,medicine.disease ,biology.organism_classification ,medicine.disease_cause ,Dermatology ,White superficial onychomycosis ,Etiology ,medicine ,Dermatophyte ,business ,Trichophyton tonsurans - Abstract
Aims & Objectives: Onychomycosis is a chronic fungal infection of nails. For identification of the specific pathogen and effective selection of antifungal treatment, the clinical diagnosis of onychomycosis must be validated by direct microscopy and culture. The goal of the study was to determine the prevalence of onychomycosis and its cultural positive in relation to several etiological factors. Introduction: Dermatophytes are the most common pathogens of onychomycosis, yeasts and non-dermatophyte moulds can also be found as causative agents of onychomycosis. Materials & Methods: Nail clippings from 90 clinically suspected instances of onchomycosis were collected from O.P.D at S.M.S and E.S.I.C. hospital in Jaipur. Trauma, infection, occupation, diabetes, and personal habits (smoking, etc.) were all thoroughly investigated. Direct microscopy using a 20% KOH examination method and fungal culture on SDA and Dermatophyte Test Media were used to make the diagnosis. Results: Out of 90 onychomycosis patients, 80 (88.9%) tested positive for KOH, whereas 33 (36.7%) tested positive in culture. Dermatophytes, non-dermatophytes, and yeasts were identified as etiological agents of onychomycosis in this investigation. Patients with distal subungual onchomycosis were shown to have a common type of onychomycosis. Trichophyton rubrum was found to be the most common species among the culture positive cases, followed by Trichophyton mentagrophyte and Trichophyton tonsurans. Non dermatophyte molds were also isolated from white superficial onychomycosis and Candida species was isolated from Candida onychomycosis. In our study, the majority of patients were in the age groups of 41-50 and 51-60 years, and males were the most usually affected. According to the study, the majority of patients infected with onychomycosis infection were service class and sportsmen, followed by labours, housewives, unemployed, students, and farmers. Conclusion: Based on the findings of this study, it is possible to conclude that onychomycosis is a significant public health issue, and that accurate diagnosis of onychomycosis by direct microscopy and fungal culture is required for appropriate management of such cases.
- Published
- 2021
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