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Hossain ML, Hammer K, Lim LY, Hettiarachchi D, Locher C. Optimisation of an agar overlay assay for the assessment of the antimicrobial activity of topically applied semi-solid antiseptic products including honey-based formulations. METHODS IN MICROBIOLOGY 2022; 202:106596. [DOI: 10.1016/j.mimet.2022.106596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/08/2022] [Accepted: 10/02/2022] [Indexed: 10/31/2022]
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Gahongayire S, Almustapha Aliero A, Drago Kato C, Namatovu A. Prevalence and Detection of qac Genes from Disinfectant-Resistant Staphylococcus aureus Isolated from Salon Tools in Ishaka Town, Bushenyi District of Uganda. THE CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY = JOURNAL CANADIEN DES MALADIES INFECTIEUSES ET DE LA MICROBIOLOGIE MEDICALE 2020; 2020:1470915. [PMID: 32849931 PMCID: PMC7441455 DOI: 10.1155/2020/1470915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 06/06/2020] [Accepted: 07/29/2020] [Indexed: 11/18/2022]
Abstract
Bacterial infections are on a rise with causal-resistant strains increasing the economic burden to both patients and healthcare providers. Salons are recently reported as one of the sources for transmission of such resistant bacterial strains. The current study aimed at the identification of the prevalent bacteria and characterization of quaternary ammonium compound (qac) genes from disinfectant-resistant S. aureus isolated from salon tools in Ishaka town, Bushenyi District of Uganda. A total of 125 swabs were collected from different salon tools (combs, brushes, scissors, clippers, and shaving machines), and prevalent bacteria were isolated using standard microbiological methods. Identification of isolated bacteria was done using standard phenotypic methods including analytical profile index (API). Susceptibility patterns of the isolated bacteria to disinfectant were determined using the agar well diffusion method. Quaternary ammonium compound (qac) genes (qacA/B and qacC) associated with disinfectant resistances were detected from disinfectant-resistant S. aureus using multiplex polymerase chain reaction (PCR) and Sanger sequencing methods. Of the 125 swab samples collected from salons, 78 (62.4%) were contaminated with different bacteria species. Among the salon tools, clippers had the highest contamination of 20 (80.0%), while shaving machines had the lowest contamination of 11 (44.0%). The most prevalent bacteria identified were Staphylococcus epidermidis (28.1%) followed by S. aureus (26.5%). Of all the disinfectants tested, the highest resistance was shown with sodium hypochlorite 1%. Out of the eight (8) disinfectant-resistant S. aureus analysed for qac genes, 2 (25%) isolates (STP6 and STP9) were found to be qacA/B positive, while 2 (25%) isolates (STP8 and STP9) were found to be qacC gene positive. This study has shown that bacterial contamination of salon tools is common, coupled with resistance to disinfectants with sodium hypochlorite resistance being more common. Furthermore, observed resistance was attributed to the presence of qac genes among S. aureus isolates. A search for qac genes for disinfectant resistance from other bacteria species is recommended.
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Affiliation(s)
- Solange Gahongayire
- Department of Microbiology and Immunology, Faculty of Biomedical Sciences, Kampala International University, Western Campus, P.O. Box 71, Bushenyi, Kampala, Uganda
| | - Adamu Almustapha Aliero
- Department of Microbiology and Immunology, Faculty of Biomedical Sciences, Kampala International University, Western Campus, P.O. Box 71, Bushenyi, Kampala, Uganda
| | - Charles Drago Kato
- Department of Microbiology and Immunology, Faculty of Biomedical Sciences, Kampala International University, Western Campus, P.O. Box 71, Bushenyi, Kampala, Uganda
- School of Biosecurity, Biotechnical and Laboratory Sciences, College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Alice Namatovu
- Department of Microbiology and Immunology, Faculty of Biomedical Sciences, Kampala International University, Western Campus, P.O. Box 71, Bushenyi, Kampala, Uganda
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, P. O. Box 7062, Kampala, Uganda
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Development, Characterization, and Evaluation of Novel Broad-Spectrum Antimicrobial Topical Formulations from Cymbopogon martini (Roxb.) W. Watson Essential Oil. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:9812093. [PMID: 30275867 PMCID: PMC6151366 DOI: 10.1155/2018/9812093] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 08/19/2018] [Indexed: 12/13/2022]
Abstract
Background Skin infections were the most frequently encountered of all infections and the 4th leading cause of nonfatal disease burden. Topical drugs have been used for the management of skin infections. The growing concern of drug resistance to the topical agents has warned the need for continuous development of novel drug. Essential oils are the best candidate for new drug with different mode of action and target as they are rich in chemical constituents. Objective To evaluate and develop safe and effective topical antimicrobial formulations from essential oil of Cymbopogon martini. Method. Essential oil was extracted using hydrodistillation aerial part C. martini and topical formulations were prepared in five different semisolid bases. In vitro antimicrobial investigations were performed on essential oil and topical formulations. Skin sensitizations of the formulations were evaluated using guinea pig maximization. Results The essential oil of C. martini has shown broad-spectrum antimicrobial potency against all tested organisms with MIC value ranging from 0.65 to 10 μg/ml. Absolute inhibitions of growth of fungi were observed against Trichophyton mentagrophytes and Trichophyton rubrum at concentrations above 1% of oil and against Microsporum canis and Trichophyton verrucosum at a concentration of 4% oil. Among topical formulations, the highest antimicrobial activity was recorded in hydrophilic ointment followed by macrogol blend ointment. The antimicrobial activity of oil was higher in fungal pathogen compared to bacteria. Gram positive bacteria were more sensitive than gram negative bacteria. Hydrophilic and macrogol blend ointment containing 5% oil did not produce any skin sensitization on guinea pigs. Conclusion In conclusion, topical formulations of C. martini essential oil can be alternative topical agents with safe broad-spectrum activity for the treatment of skin disorder. Further studies should focus on shelf life study and clinical study of the product.
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González-Fernández D, Koski KG, Sinisterra OT, Del Carmen Pons E, Murillo E, Scott ME. Interactions among urogenital, intestinal, skin, and oral infections in pregnant and lactating Panamanian Ngäbe women: a neglected public health challenge. Am J Trop Med Hyg 2015; 92:1100-10. [PMID: 25825387 PMCID: PMC4458810 DOI: 10.4269/ajtmh.14-0547] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2014] [Accepted: 02/21/2015] [Indexed: 01/09/2023] Open
Abstract
Interrelationships among bacteria, protozoa, helminths, and ectoparasites were explored in a cross-sectional survey of 213 pregnant and 99 lactating indigenous women. Prevalences in pregnancy and lactation, respectively, were: vaginitis (89.2%; 46.8%), vaginal trichomoniasis (75.3%; 91.1%), bacterial vaginosis (BV; 60.6%; 63.3%), hookworm (56.6%; 47.8%), asymptomatic bacteriuria/urinary tract infection (AB/UTI; 56.2%; 36.2%), cervicitis (33.3%; 6.3%), vaginal yeast (24.9%; 11.4%), Ascaris (32.5%; 17.4%), vaginal diplococci (20.4%; 31.6%), caries (19.7%; 18.2%), scabies (17.4%; 8.1%), and Trichuris (12.5%; 8.7%). Multiple regressions revealed positive associations during pregnancy (trichomoniasis and AB/UTI; diplococci and Ascaris) and lactation (yeast and scabies). Negative associations were detected in pregnancy (BV and trichomoniasis; hookworm and diplococci) and lactation (BV and yeast). Vaginal Lactobacillus reduced odds of diplococci in pregnancy and lactation, but increased Ascaris eggs per gram (epg) and odds of trichomoniasis in pregnancy and yeast in lactation. These associations raised a concern that treatment of one condition may increase the risk of another.
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Affiliation(s)
- Doris González-Fernández
- Institute of Parasitology and Centre for Host-Parasite Interactions, McGill University, Ste-Anne de Bellevue, Quebec, Canada; School of Dietetics and Human Nutrition, McGill University, Ste-Anne de Bellevue, Quebec, Canada; Department of Biochemistry, University of Panamá, Panamá City, Panamá; Department of Nutritional Health, Ministry of Health, Panamá City, Panamá
| | - Kristine G Koski
- Institute of Parasitology and Centre for Host-Parasite Interactions, McGill University, Ste-Anne de Bellevue, Quebec, Canada; School of Dietetics and Human Nutrition, McGill University, Ste-Anne de Bellevue, Quebec, Canada; Department of Biochemistry, University of Panamá, Panamá City, Panamá; Department of Nutritional Health, Ministry of Health, Panamá City, Panamá
| | - Odalis Teresa Sinisterra
- Institute of Parasitology and Centre for Host-Parasite Interactions, McGill University, Ste-Anne de Bellevue, Quebec, Canada; School of Dietetics and Human Nutrition, McGill University, Ste-Anne de Bellevue, Quebec, Canada; Department of Biochemistry, University of Panamá, Panamá City, Panamá; Department of Nutritional Health, Ministry of Health, Panamá City, Panamá
| | - Emérita Del Carmen Pons
- Institute of Parasitology and Centre for Host-Parasite Interactions, McGill University, Ste-Anne de Bellevue, Quebec, Canada; School of Dietetics and Human Nutrition, McGill University, Ste-Anne de Bellevue, Quebec, Canada; Department of Biochemistry, University of Panamá, Panamá City, Panamá; Department of Nutritional Health, Ministry of Health, Panamá City, Panamá
| | - Enrique Murillo
- Institute of Parasitology and Centre for Host-Parasite Interactions, McGill University, Ste-Anne de Bellevue, Quebec, Canada; School of Dietetics and Human Nutrition, McGill University, Ste-Anne de Bellevue, Quebec, Canada; Department of Biochemistry, University of Panamá, Panamá City, Panamá; Department of Nutritional Health, Ministry of Health, Panamá City, Panamá
| | - Marilyn E Scott
- Institute of Parasitology and Centre for Host-Parasite Interactions, McGill University, Ste-Anne de Bellevue, Quebec, Canada; School of Dietetics and Human Nutrition, McGill University, Ste-Anne de Bellevue, Quebec, Canada; Department of Biochemistry, University of Panamá, Panamá City, Panamá; Department of Nutritional Health, Ministry of Health, Panamá City, Panamá
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Coates SJ, Kvedar J, Granstein RD. Teledermatology: from historical perspective to emerging techniques of the modern era: part I: History, rationale, and current practice. J Am Acad Dermatol 2015; 72:563-74; quiz 575-6. [PMID: 25773407 DOI: 10.1016/j.jaad.2014.07.061] [Citation(s) in RCA: 95] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2014] [Revised: 07/21/2014] [Accepted: 07/27/2014] [Indexed: 11/30/2022]
Abstract
Telemedicine is the use of telecommunications technology to support health care at a distance. Technological advances have progressively increased the ability of clinicians to care for diverse patient populations in need of skin expertise. Dermatology relies on visual cues that are easily captured by imaging technologies, making it ideally suited for this care model. Moreover, there is a shortage of medical dermatologists in the United States, where skin disorders account for 1 in 8 primary care visits and specialists tend to congregate in urban areas. Even in regions where dermatologic expertise is readily accessible, teledermatology may serve as an alternative that streamlines health care delivery by triaging chief complaints and reducing unnecessary in-person visits. In addition, many patients in the developing world have no access to dermatologic expertise, rendering it possible for teledermatologists to make a significant contribution to patient health outcomes. Teledermatology also affords educational benefits to primary care providers and dermatologists, and enables patients to play a more active role in the health care process by promoting direct communication with dermatologists.
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Affiliation(s)
- Sarah J Coates
- Department of Dermatology, Weill Cornell Medical College, New York, New York
| | - Joseph Kvedar
- Department of Dermatology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Richard D Granstein
- Department of Dermatology, Weill Cornell Medical College, New York, New York.
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