1
|
Panich W, Tejangkura T, Chontananarth T. Assay for the simultaneous detection of Raillietina spp. (R. echinobothrida, R. tetragona, and R. cesticillus) and Ascaridia galli infection in chickens using duplex loop-mediated isothermal amplification integrated with a lateral flow dipstick assay. Vet Parasitol 2024; 328:110174. [PMID: 38579608 DOI: 10.1016/j.vetpar.2024.110174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 03/22/2024] [Accepted: 03/22/2024] [Indexed: 04/07/2024]
Abstract
Raillietina species and Ascaridia galli are two of the significant intestinal parasites that affect chickens in a free-range system production. They destroy the intestinal mucosa layer, leading to several clinical symptoms such as weight loss, a slowed growth rate, and economic value loss. Thus, the objective of this study was to develop an assay for simultaneously detecting Raillietina spp. (R. echinobothrida, R. tetragona, and R. cesticillus) and A. galli in a single reaction using duplex loop-mediated isothermal amplification (dLAMP) coupled with a lateral flow dipstick (LFD) assay. The analytical specificity of the dLAMP-LFD assay showed a high specific amplification of Raillietina spp. and A. galli without non-target amplification. Regarding the analytical sensitivity, this approach was capable of simultaneously detecting concentrations as low as 5 pg/μL of mixed-targets. To evaluate the efficiency of the dLAMP assay, 30 faecal samples of chickens were verified and compared through microscopic examination. The dLAMP-LFD assay and microscopic examination results showed kappa values of Raillietina spp. and A. galli with moderate (K= 0.615) to high (K= 1) agreements, respectively, while the McNemar's test indicated that the efficiency between assays was not significantly different. Therefore, the developed dLAMP-LFD assay can be used as an alternative screening method to the existing classical method for epidemiological investigation, epidemic control, and farm management, as well as for addressing poultry health problems.
Collapse
Affiliation(s)
- Wasin Panich
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Thanawan Tejangkura
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand; Research and Innovation Unit for Diagnosis of Medical and Veterinary Important Parasites, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Thapana Chontananarth
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand; Research and Innovation Unit for Diagnosis of Medical and Veterinary Important Parasites, Faculty of Science, Srinakharinwirot University, Bangkok 10110, Thailand.
| |
Collapse
|
2
|
Panich W, Nak-On S, Sabaijai M, Raksaman A, Puttharugsa C, Tejangkura T, Chontananarth T. Evaluation of semi-quantitative colorimetric assays based on loop-mediated isothermal amplification indicators by using image analysis. Anal Biochem 2024; 688:115481. [PMID: 38360170 DOI: 10.1016/j.ab.2024.115481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/29/2024] [Accepted: 02/06/2024] [Indexed: 02/17/2024]
Abstract
Colorimetric assays are some of the most convenient detection methods, creating discoloration in solutions that is visible to the naked eye. However, colorimetric reactions have some limitations regarding the variability in the color perception of individuals caused by factors such as color blindness, experience, and gender. Semi-quantitative chromatic analysis has been used as an alternative method to differentiate between two colors and accurately interpret the results from a numerical value, with high confidence. Therefore, we developed and determined the optimal model between Red-Green-Blue (RGB) and Commission Internationale de l'Eclairage (CIE) Lab color spaces to establish a semi-quantitative colorimetric assay via image analysis by the ImageJ program for loop-mediated isothermal amplification (LAMP), using the dyes malachite green and phenol red. The semi-quantitative colorimetric assays using the color distance values of the CIELab color space (ΔEab) were more suitable than those using the RGB color space (ΔERGB) for chromatic differentiation between positive and negative reactions in both indicator dyes, demonstrating the feasibility of this assay to be applied in the detection of a wide range of pathogens and infectious diseases.
Collapse
Affiliation(s)
- Wasin Panich
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Sirapat Nak-On
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Metawee Sabaijai
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Awika Raksaman
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Chokchai Puttharugsa
- Department of Physics, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Thanawan Tejangkura
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand; Research and Innovation Unit for Diagnosis of Medical and Veterinary Important Parasites, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand
| | - Thapana Chontananarth
- Applied Parasitology Research Laboratory, Department of Biology, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand; Research and Innovation Unit for Diagnosis of Medical and Veterinary Important Parasites, Faculty of Science, Srinakharinwirot University, Bangkok, 10110, Thailand.
| |
Collapse
|