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Wutthiwitthayaphon S, Suwannachote T, Arayatham S, Prasitsuwan W, Ruenphet S. Assessment of Vcheck ® analyzer for rapid progesterone concentration measurement including recommendations for achieving the optimal breeding time in bitches. Vet World 2024; 17:427-433. [PMID: 38595662 PMCID: PMC11000484 DOI: 10.14202/vetworld.2024.427-433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 02/02/2024] [Indexed: 04/11/2024] Open
Abstract
Background and Aim Serum progesterone concentration plays critical role in determining the optimal breeding time in bitches and diagnosing reproductive-related issues. This study aimed to conduct a comparative analysis of serum progesterone results obtained from commercial point-of-care immunological analyzers, namely, Vcheck®, with those obtained using chemiluminescent microparticle immunoassay (CMIA). Our overarching goal was to evaluate these analyzers' accuracy and establish standardized guidelines for optimal breeding timing. Materials and Methods Ninety-four serum samples from bitches were analyzed using the Vcheck® analyzer and compared with CMIA. Thorough documentation included the mean, standard deviation, 95% confidence interval (CI), and minimum and maximum values of serum progesterone concentrations. Furthermore, Pearson's correlation coefficient, Lin's concordance correlation coefficient, and the bias correction factor were meticulously recorded. Results The mean progesterone concentration measured using the Vcheck® analyzer was significantly lower than that measured using CMIA, with a mean difference of 1.26 ng/mL of serum. The Bias correction factor was 0.935, which was nearly 1.00, indicating that the line of best-fit was on the perfect line of agreement, providing insight into the measurement accuracy. Pearson's correlation coefficient, a measure of precision, was also close to 1 (0.939), confirming the reliability of the data. Furthermore, Lin's concordance correlation coefficient was 0.877, indicating a fair overall agreement between the Vcheck® and CMIA methods. These results support the validity of the Vcheck® analyzer's results. The present study was developed by aligning with established CMIA guidelines and adapting them using the range and 95% CI derived from each set of results, ensuring a standardized and rigorous approach. Conclusion The Vcheck® analyzer provides a rapid assessment of serum progesterone concentration in bitches, with results comparable to those measured using the CMIA technique. However, when considering the use of the Vcheck® analyzer, it is recommended that the results should be interpreted carefully and the interpretation guidelines should be followed. In conclusion, Vcheck® provides a reliable and convenient method for veterinarian practitioners to measure canine progesterone levels in a clinical/hospital setting.
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Affiliation(s)
- Supphathat Wutthiwitthayaphon
- Department Immunology and Virology, Veterinary Medicine Faculty, Mahanakorn University of Technology, 140 Cheum-Sampan Rd. Nong Chock, Bangkok, Thailand
| | - Thanikran Suwannachote
- Clinic for Small Domestic Animals and Radiology, Veterinary Medicine Faculty, Mahanakorn University of Technology, 140 Cheum-Sampan Rd. Nong Chock, Bangkok, Thailand
| | - Saengtawan Arayatham
- Master of Science Program in Animal Biotechnology, Veterinary Medicine Faculty, Mahanakorn University of Technology, 140 Cheum-Sampan Rd. Nong Chock, Bangkok, Thailand
- Clinic of Obstetrics, Gynecology and Animal Reproduction, Veterinary Medicine Faculty, Mahanakorn University of Technology, 140 Cheum-Sampan Rd. Nong Chock, Bangkok, Thailand
| | - Wisut Prasitsuwan
- Master of Science Program in Animal Biotechnology, Veterinary Medicine Faculty, Mahanakorn University of Technology, 140 Cheum-Sampan Rd. Nong Chock, Bangkok, Thailand
| | - Sakchai Ruenphet
- Department Immunology and Virology, Veterinary Medicine Faculty, Mahanakorn University of Technology, 140 Cheum-Sampan Rd. Nong Chock, Bangkok, Thailand
- Master of Science Program in Animal Biotechnology, Veterinary Medicine Faculty, Mahanakorn University of Technology, 140 Cheum-Sampan Rd. Nong Chock, Bangkok, Thailand
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Suwannachote T, Wutthiwitthayaphong S, Arayatham S, Prasitsuwan W, Ruenphet S. A Precision Assessment of a Point-of-Care Immunological Analyzer for Swift Progesterone Measurement and Guidance for Determining the Optimal Breeding Time in Bitches. Animals (Basel) 2024; 14:377. [PMID: 38338020 PMCID: PMC10854716 DOI: 10.3390/ani14030377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 02/12/2024] Open
Abstract
The measurement of serum progesterone often varies due to different laboratory methodologies and individual canine characteristics. In this investigation, serum progesterone outcomes obtained from a commercial point-of-care immunological analyzer, designed for efficient serum progesterone assessment in bitches, were compared with results derived from chemiluminescent microparticle immunoassay from reference laboratories in Thailand. Our thorough documentation encompassed various parameters: mean, standard deviation, 95% confidence interval, and minimum and maximum serum progesterone concentration values. Additionally, we meticulously recorded the Pearson's correlation coefficient, Lin's concordance correlation coefficient, and the bias correction factor. Interestingly, there was no significant difference (p > 0.05) in the means obtained by the point-of-care immunological analyzer and chemiluminescent microparticle immunoassay. The Pearson's correlation coefficient between the point-of-care immunological analyzer and chemiluminescent microparticle immunoassay stood at 0.957, with Lin's concordance correlation coefficient for point-of-care immunological analyzer recorded as 0.949. Furthermore, the bias correction factor was established at 0.991. This investigation followed established chemiluminescent microparticle immunoassay guidelines, modified to incorporate the mean and 95% confidence interval as criteria for optimal breeding time using the point-of-care immunological analyzer. In conclusion, the commercial point-of-care immunological analyzer emerges as a valuable tool, aiding in precisely determining the optimal timing for natural mating or artificial insemination in bitches.
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Affiliation(s)
- Thanikran Suwannachote
- Clinic for Small Domestic Animals and Radiology, Mahanakorn University of Technology, Bangkok 10530, Thailand;
| | | | - Saengtawan Arayatham
- Clinic for Gynecology and Animal Reproduction, Mahanakorn University of Technology, Bangkok 10530, Thailand;
- Animal Biotechnology, Mahanakorn University of Technology, Bangkok 10530, Thailand;
| | - Wisut Prasitsuwan
- Animal Biotechnology, Mahanakorn University of Technology, Bangkok 10530, Thailand;
| | - Sakchai Ruenphet
- Immunology and Virology Department, Mahanakorn University of Technology, Bangkok 10530, Thailand;
- Animal Biotechnology, Mahanakorn University of Technology, Bangkok 10530, Thailand;
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Zhang CY, Xu RQ, Wang XQ, Sun LF, Mo P, Cai RJ, Lin XZ, Luo CF, Ou WC, Lu LJ, Zhong Y, Chen JY. Comprehensive transcriptomics and metabolomics analyses reveal that hyperhomocysteinemia is a high risk factor for coronary artery disease in a chinese obese population aged 40-65: a prospective cross-sectional study. Cardiovasc Diabetol 2023; 22:219. [PMID: 37620823 PMCID: PMC10463368 DOI: 10.1186/s12933-023-01942-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/26/2023] [Indexed: 08/26/2023] Open
Abstract
BACKGROUND Clinical observations suggest a complex relationship between obesity and coronary artery disease (CAD). This study aimed to characterize the intermediate metabolism phenotypes among obese patients with CAD and without CAD. METHODS Sixty-two participants who consecutively underwent coronary angiography were enrolled in the discovery cohort. Transcriptional and untargeted metabolomics analyses were carried out to screen for key molecular changes between obese patients with CAD (CAD obese), without CAD (Non-CAD obese), and Non-CAD leans. A targeted GC-MS metabolomics approach was used to further identify differentially expressed metabolites in the validation cohorts. Regression and receiver operator curve analysis were performed to validate the risk model. RESULTS We found common aberrantly expressed pathways both at the transcriptional and metabolomics levels. These pathways included cysteine and methionine metabolism and arginine and proline metabolism. Untargeted metabolomics revealed that S-adenosylhomocysteine (SAH), 3-hydroxybenzoic acid, 2-hydroxyhippuric acid, nicotinuric acid, and 2-arachidonoyl glycerol were significantly elevated in the CAD obese group compared to the other two groups. In the validation study, targeted cysteine and methionine metabolomics analyses showed that homocysteine (Hcy), SAH, and choline were significantly increased in the CAD obese group compared with the Non-CAD obese group, while betaine, 5-methylpropanedioic acid, S-adenosylmethionine, 4-PA, and vitamin B2 (VB2) showed no significant differences. Multivariate analyses showed that Hcy was an independent predictor of obesity with CAD (hazard ratio 1.7; 95%CI 1.2-2.6). The area under the curve based on the Hcy metabolomic (HCY-Mtb) index was 0.819, and up to 0.877 for the HCY-Mtb.index plus clinical variables. CONCLUSION This is the first study to propose that obesity with hyperhomocysteinemia is a useful intermediate metabolism phenotype that could be used to identify obese patients at high risk for developing CAD.
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Affiliation(s)
- Chong-Yu Zhang
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guang Zhou, China
| | - Ru-Qin Xu
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guang Zhou, China
| | - Xiao-Qiao Wang
- Department of Anesthesiology, the Second Affiliated Hospital of Guangzhou Medical University, Guang Zhou, China
| | - Lin-Feng Sun
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guang Zhou, China
| | - Pei Mo
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guang Zhou, China
| | - Ren-Jie Cai
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guang Zhou, China
| | - Xiao-Zhen Lin
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guang Zhou, China
| | - Cheng-Feng Luo
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guang Zhou, China
| | - Wen-Chao Ou
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guang Zhou, China
| | - Lie-Jing Lu
- Department of Anesthesiology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guang Zhou, China
| | - Yun Zhong
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guang Zhou, China.
- , No.250 Changgang Road, Guangzhou, Haizhu district, China.
| | - Jia-Yuan Chen
- Department of Cardiology, Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, The Second Affiliated Hospital, Guangzhou Medical University, Guang Zhou, China.
- , No.250 Changgang Road, Guangzhou, Haizhu district, China.
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Conley AJ, Gonzales KL, Erb HN, Christensen BW. Progesterone Analysis in Canine Breeding Management. Vet Clin North Am Small Anim Pract 2023:S0195-5616(23)00080-3. [PMID: 37385875 DOI: 10.1016/j.cvsm.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Progesterone is a worthwhile addition to the clinical assessment of cycle stage for breeding, elective cesarian delivery, and reproductive management in the bitch if reliably measured. Clinical decisions based on systemic progesterone concentrations also require the rapid return of results. Most commercially accessible analyses capable of returning results within a day still rely primarily on immunoassays of one kind or another. Point-of-care instruments utilizing similar technology have been developed more recently to enable results to be generated in-house. Repeated monitoring of progesterone on whatever platform can be useful if consistent collection and analysis protocols ensure acceptable precision, accuracy, and repeatability.
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Affiliation(s)
- Alan J Conley
- Department of Population Health & Reproduction, School of Veterinary Medicine, University of California, Davis, CA 95616, USA.
| | - Kris L Gonzales
- Guide Dogs for the Blind, California Campus, PO Box 151200, San Rafael, CA 94915, USA
| | - Hollis N Erb
- Department of Population Medicine and Diagnostic Sciences, Cornell University College of Veterinary Medicine, Ithaca, NY 14853, USA
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Milani C, Boscato EL, Gabai G, Badon T, Schrank M, Sontas HB, Romagnoli S, Mollo A. Analytical and clinical performance of a fluorescence enzyme immunoassay for progesterone and determination of ovulation day in bitches. J Vet Diagn Invest 2022; 34:977-982. [PMID: 36172627 PMCID: PMC9597340 DOI: 10.1177/10406387221125466] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We evaluated the performance of a third-generation fluorescence enzyme immunoassay kit (FEIA; Tosoh Bioscience) for progesterone (P4) measurement in canine serum to identify the day of luteinizing hormone (LH) peak and ovulation in bitches. We conducted P4 assays on 54 serum samples using a FEIA and a chemiluminescence immunoassay (CLIA; Siemens). For the FEIA kit, the linearity test, recovery test, inter- and intra-assay CVs, and total error observed (TEo) were calculated. Serum samples from 28 bitches were used to evaluate the association of P4 concentration with the day of LH peak and the day of ovulation based on P4 thresholds (P4 ≥ 2 ng/mL, and doubling at 4-8 ng/mL in the following 48 h), and with pregnancy length. Linearity was 75-97% and 86-94% for high (37.0 ng/mL) and medium (3.8 ng/mL) pool serum samples, respectively. Recovery was 86.4-119%. Intra-assay CVs were 2.6%, 3.3%, and 5.2% for low (0.23 ng/mL), medium (6.24 ng/mL), and high (38.3 ng/mL) pool concentrations. Inter-assay CVs were 2.22% and 2.53% for P4 concentrations of 2.70 ng/mL and 8.2 ng/mL, respectively. TEo was 8.72% and 22.7% for P4 concentrations of 2 and 8 ng/mL, respectively. The mean pregnancy length from the day of LH peak and ovulation were 64.6 ± 1.7 and 63.3 ± 1.1 d, respectively. The third-generation FEIA kit that we tested was highly reliable.
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Affiliation(s)
- Chiara Milani
- Departments of Animal Medicine, Production and
Health
| | | | | | - Tamara Badon
- Departments of Animal Medicine, Production and
Health
| | | | - Hasan B. Sontas
- University of Padova, Padova, Veneto, Italy;
Kleintierklinik Vitalis, Vorchdorf, Austria
| | | | - Antonio Mollo
- Departments of Animal Medicine, Production and
Health
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Hussein HA, Schuler G, Conze T, Wehrend A. Comparison of three progesterone quantification methods using blood samples drawn from bitches during the periovulatory phase. Vet World 2022; 15:119-123. [PMID: 35369603 PMCID: PMC8924395 DOI: 10.14202/vetworld.2022.119-123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 12/17/2021] [Indexed: 12/04/2022] Open
Abstract
Background and Aim: Measuring blood progesterone (P4) concentration has become an essential diagnostic tool in small animal reproductive medicine. Methods enabling precise and rapid on-site measurements are in high demand, especially for the optimization of breeding management in bitches. This study aimed to compare two commercial on-site methods (Speed™ P4, Virbac [M1] and mini VIDAS®, bioMérieux [M2]) and a well-established radioimmunoassay (RIA), which was used as a reference method. Materials and Methods: Comparative measurements were performed on 52 blood serum samples collected from 45 clinically healthy bitches of different breeds. The dogs had been presented to determine the estrus cycle stage and predict the time of ovulation. Each sample was divided into three aliquots. In aliquot 1, P4 was measured immediately applying M2. Aliquots 2 and 3 were stored at −20°C until analysis was performed using RIA and M1. The consistency of the three methods was investigated by pairwise linear regression analyses. Results: In RIA, the P4 concentrations ranged between 1.1 and 25.4 ng/mL. Regression analyses revealed highly significant (p<0.0001) positive correlations between the three methods applied (M1 vs. RIA: R=0.94; M2 vs. RIA: R=0.98; and M1 vs. M2: R=0.91). Conclusion: The results show that the two commercial on-site methods tested exhibit approximately equal, high consistency with the radioimmunological reference method and can, therefore, be used beneficially in a clinical setting. However, biological interpretation of data must be performed in a method-specific manner.
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Affiliation(s)
- Hassan A. Hussein
- Department of Theriogenology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt; Clinic for Obstetrics, Gynaecology and Andrology of Large and Small Animals with Veterinary Ambulance, Justus Liebig University, Giessen, Germany
| | - Gerhard Schuler
- Clinic for Obstetrics, Gynaecology and Andrology of Large and Small Animals with Veterinary Ambulance, Justus Liebig University, Giessen, Germany
| | - Theresa Conze
- Clinic for Obstetrics, Gynaecology and Andrology of Large and Small Animals with Veterinary Ambulance, Justus Liebig University, Giessen, Germany
| | - Axel Wehrend
- Clinic for Obstetrics, Gynaecology and Andrology of Large and Small Animals with Veterinary Ambulance, Justus Liebig University, Giessen, Germany
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