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Cordeiro CD, Gonceer N, Dorus S, Crill JE, Moshayoff V, Lachman A, Moran A, Vilenchik D, Fedida-Metula S. Fast, accurate, and cost-effective poultry sex genotyping using real-time polymerase chain reaction. Front Vet Sci 2023; 10:1196755. [PMID: 38026630 PMCID: PMC10655105 DOI: 10.3389/fvets.2023.1196755] [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: 03/30/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
According to The Organization for Economic Co-operation and Development (OECD), demand for poultry meat and eggs consumption is growing consistently since poultry meat and eggs are readily available and cheap source for nutritional protein. As such, there is pressing demand from industry for improved protocols to determine chicken sex, especially in layer industry since only females can lay eggs. Extensive efforts are being dedicated to avoiding male chicks culling by developing in-ovo sexing detection methods. Any established in-ovo detection method will need to be validated by embryo genotyping. Therefore, there is a growing demand for fast, inexpensive, and precise method for proper discrimination between males and females in the poultry science community. Our aim with this study was to develop an accurate, high-throughput protocol for sex determination using small volumes of blood. We designed primers targeting the Hint-W gene within the W chromosome clearly distinguishing between males and females. In the interest of establishing an efficient protocol without the need for gel electrophoresis, crude DNA extraction without further purification was coupled with qPCR. We validated the accuracy of our method using established protocols and gonad phenotyping and tested our protocol with four different chicken breeds, day-nine embryos, day-old chicks and adult chicken. In summary, we developed a fast, cost-effective, and accurate method for the genotyping of sex chromosomes in chicken.
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Affiliation(s)
| | | | - Steve Dorus
- Department of Biology, Center for Reproductive Evolution, Syracuse University, Syracuse, NY, United States
| | - James E. Crill
- Forensic and National Security Sciences Institute, Syracuse University, Syracuse, NY, United States
| | | | | | | | - Dan Vilenchik
- School of Electrical and Computer Engineering, Ben Gurion University of the Negev, Beer-Sheva, Israel
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2
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Corion M, Santos S, De Ketelaere B, Spasic D, Hertog M, Lammertyn J. Trends in in ovo sexing technologies: insights and interpretation from papers and patents. J Anim Sci Biotechnol 2023; 14:102. [PMID: 37452378 PMCID: PMC10347793 DOI: 10.1186/s40104-023-00898-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/31/2023] [Indexed: 07/18/2023] Open
Abstract
Numerous researchers and institutions have been developing in ovo sexing technologies to improve animal welfare by identifying male embryos in an early embryonic stage and disposing of them before pain perception. This review gives a complete overview of the technological approaches reported in papers and patents by performing a thorough search using Web of Science and Patstat/Espacenet databases for papers and patents, respectively. Based on a total of 49 papers and 115 patent families reported until May 2023 worldwide, 11 technology categories were defined: 6 non-optical and 5 optical techniques. Every category was described for its characteristics while assessing its potential for application. Next, the dynamics of the publications of in ovo sexing techniques in both paper and patent fields were described through growth curves, and the interest or actual status was visualized using the number of paper citations and the actual legal status of the patents. When comparing the reported technologies in papers to those in patents, scientific gaps were observed, as some of the patented technologies were not reported in the scientific literature, e.g., ion mobility and mass spectrometry approaches. Generally, more diverse approaches in all categories were found in patents, although they do require more scientific evidence through papers or industrial adoption to prove their robustness. Moreover, although there is a recent trend for non-invasive techniques, invasive methods like analyzing DNA through PCR or hormones through immunosensing are still being reported (and might continue to be) in papers and patents. It was also observed that none of the technologies complies with all the industry requirements, although 5 companies already entered the market. On the one hand, more research and harmony between consumers, industry, and governments is necessary. On the other hand, close monitoring of the market performance of the currently available techniques will offer valuable insights into the potential and expectations of in ovo sexing techniques in the poultry industry.
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Affiliation(s)
- Matthias Corion
- KU Leuven, BIOSYST-MeBioS Biosensors Group, Willem de Croylaan 42, Leuven, B-3001, Belgium
| | - Simão Santos
- KU Leuven, BIOSYST-MeBioS Biosensors Group, Willem de Croylaan 42, Leuven, B-3001, Belgium
| | - Bart De Ketelaere
- KU Leuven, BIOSYST-MeBioS Biostatistics Group, Kasteelpark Arenberg 30, Leuven, B-3001, Belgium.
| | - Dragana Spasic
- KU Leuven, BIOSYST-MeBioS Biosensors Group, Willem de Croylaan 42, Leuven, B-3001, Belgium
| | - Maarten Hertog
- KU Leuven, BIOSYST-MeBioS Postharvest Group, Willem de Croylaan 42, Leuven, B-3001, Belgium
| | - Jeroen Lammertyn
- KU Leuven, BIOSYST-MeBioS Biosensors Group, Willem de Croylaan 42, Leuven, B-3001, Belgium
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3
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Zhang X, Li J, Chen S, Yang N, Zheng J. Overview of Avian Sex Reversal. Int J Mol Sci 2023; 24:ijms24098284. [PMID: 37175998 PMCID: PMC10179413 DOI: 10.3390/ijms24098284] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 04/28/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023] Open
Abstract
Sex determination and differentiation are processes by which a bipotential gonad adopts either a testicular or ovarian cell fate, and secondary sexual characteristics adopt either male or female developmental patterns. In birds, although genetic factors control the sex determination program, sex differentiation is sensitive to hormones, which can induce sex reversal when disturbed. Although these sex-reversed birds can form phenotypes opposite to their genotypes, none can experience complete sex reversal or produce offspring under natural conditions. Promising evidence indicates that the incomplete sex reversal is associated with cell autonomous sex identity (CASI) of avian cells, which is controlled by genetic factors. However, studies cannot clearly describe the regulatory mechanism of avian CASI and sex development at present, and these factors require further exploration. In spite of this, the abundant findings of avian sex research have provided theoretical bases for the progress of gender control technologies, which are being improved through interdisciplinary co-operation and will ultimately be employed in poultry production. In this review, we provide an overview of avian sex determination and differentiation and comprehensively summarize the research progress on sex reversal in birds, especially chickens. Importantly, we describe key issues faced by applying gender control systems in poultry production and chronologically summarize the development of avian sex control methods. In conclusion, this review provides unique perspectives for avian sex studies and helps scientists develop more advanced systems for sex regulation in birds.
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Affiliation(s)
- Xiuan Zhang
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100193, China
| | - Jianbo Li
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100193, China
| | - Sirui Chen
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100193, China
| | - Ning Yang
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100193, China
| | - Jiangxia Zheng
- Department of Animal Genetics and Breeding, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics, Breeding and Reproduction, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100193, China
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4
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Comparison of Different Label-Free Raman Spectroscopy Approaches for the Discrimination of Clinical MRSA and MSSA Isolates. Microbiol Spectr 2022; 10:e0076322. [PMID: 36005817 PMCID: PMC9603629 DOI: 10.1128/spectrum.00763-22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) is classified as one of the priority pathogens that threaten human health. Resistance detection with conventional microbiological methods takes several days, forcing physicians to administer empirical antimicrobial treatment that is not always appropriate. A need exists for a rapid, accurate, and cost-effective method that allows targeted antimicrobial therapy in limited time. In this pilot study, we investigate the efficacy of three different label-free Raman spectroscopic approaches to differentiate methicillin-resistant and -susceptible clinical isolates of S. aureus (MSSA). Single-cell analysis using 532 nm excitation was shown to be the most suitable approach since it captures information on the overall biochemical composition of the bacteria, predicting 87.5% of the strains correctly. UV resonance Raman microspectroscopy provided a balanced accuracy of 62.5% and was not sensitive enough in discriminating MRSA from MSSA. Excitation of 785 nm directly on the petri dish provided a balanced accuracy of 87.5%. However, the difference between the strains was derived from the dominant staphyloxanthin bands in the MRSA, a cell component not associated with the presence of methicillin resistance. This is the first step toward the development of label-free Raman spectroscopy for the discrimination of MRSA and MSSA using single-cell analysis with 532 nm excitation. IMPORTANCE Label-free Raman spectra capture the high chemical complexity of bacterial cells. Many different Raman approaches have been developed using different excitation wavelength and cell analysis methods. This study highlights the major importance of selecting the most suitable Raman approach, capable of providing spectral features that can be associated with the cell mechanism under investigation. It is shown that the approach of choice for differentiating MRSA from MSSA should be single-cell analysis with 532 nm excitation since it captures the difference in the overall biochemical composition. These results should be taken into consideration in future studies aiming for the development of label-free Raman spectroscopy as a clinical analytical tool for antimicrobial resistance determination.
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5
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Foster M, Brooks W, Jahn P, Hedberg J, Andersson A, Ashton AL. Demonstration of a compact deep UV Raman spatial heterodyne spectrometer for biologics analysis. JOURNAL OF BIOPHOTONICS 2022; 15:e202200021. [PMID: 35452175 DOI: 10.1002/jbio.202200021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 03/15/2022] [Accepted: 04/19/2022] [Indexed: 06/14/2023]
Abstract
Monoclonal antibodies and antibody fragments are increasingly important classes of biotherapeutics. However, these products are both challenging and expensive to manufacture. New process analytical technologies used to monitor these products during their manufacture are of significant interest. Deep UV Raman spectroscopy promises to provide the required specificity and accuracy, however instruments, have historically been large and complex. In this paper, a new deep UV Raman instrument is described using a solid-state laser and a spatial heterodyne spectrometer. The instrument overcomes practical limitations of the technique and could readily be used for online measurement. A series of observations have been made of biopharmaceutical products, including immunoglobulin G and domain antibodies. Where high levels of both specificity and linearity when measuring samples of different concentration with a precision of better than 0.05 mg/mL has been demonstrated.
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Affiliation(s)
- Michael Foster
- IS-Instruments Ltd, Pipers Business Centre, Tonbridge, UK
| | - William Brooks
- IS-Instruments Ltd, Pipers Business Centre, Tonbridge, UK
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6
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Sex Identification of Feather Color in Geese and the Expression of Melanin in Embryonic Dorsal Skin Feather Follicles. Animals (Basel) 2022; 12:ani12111427. [PMID: 35681891 PMCID: PMC9179848 DOI: 10.3390/ani12111427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/18/2022] [Accepted: 05/23/2022] [Indexed: 11/17/2022] Open
Abstract
In production practice, we have found that the gray and black down on the backs of the Holdobaggy goslings is usually darker in females than in males. Melanin is the key pigment affecting the color of poultry plumage. Therefore, to determine whether the darkness of the dorsal plumage of the Holdobaggy goslings is related to sex, we study the melanin in the feather follicles of the dorsal skin during the embryonic period. The feather follicle structure and melanin distribution on the dorsal surface of the goose embryo is observed by HE staining and melanin-specific staining. The melanin content in the feather follicles of the dorsal skin of goslings is determined by ELISA. The results showed that the melanin content is higher in female geese than in males (p < 0.05). In addition, we also analyze the mRNA and protein expression levels of melanin-related genes (TYRP1 and ASIP) by quantitative real-time PCR and Western blotting analysis. The results show that the mRNA expression level of TYRP1 is significantly higher in the females’ dorsal skin feather follicles (p < 0.05), while the mRNA expression level of ASIP is significantly higher in the dorsal skin feather follicles of male geese (p < 0.05). In conclusion, the difference between males and females in the color of the black feathers on the dorsal track of the Holdobaggy goslings is verified, and it is feasible to identify the sex by the initial plumage color.
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7
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Raman Stable Isotope Probing of Bacteria in Visible and Deep UV-Ranges. Life (Basel) 2021; 11:life11101003. [PMID: 34685375 PMCID: PMC8539138 DOI: 10.3390/life11101003] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 09/16/2021] [Accepted: 09/20/2021] [Indexed: 11/17/2022] Open
Abstract
Raman stable isotope probing (Raman-SIP) is an excellent technique that can be used to access the overall metabolism of microorganisms. Recent studies have mainly used an excitation wavelength in the visible range to characterize isotopically labeled bacteria. In this work, we used UV resonance Raman spectroscopy (UVRR) to evaluate the spectral red-shifts caused by the uptake of isotopes (13C, 15N, 2H(D) and 18O) in E. coli cells. Moreover, we present a new approach based on the extraction of labeled DNA in combination with UVRR to identify metabolically active cells. The proof-of-principle study on E. coli revealed heterogeneities in the Raman features of both the bacterial cells and the extracted DNA after labeling with 13C, 15N, and D. The wavelength of choice for studying 18O- and deuterium-labeled cells is 532 nm is, while 13C-labeled cells can be investigated with visible and deep UV wavelengths. However, 15N-labeled cells are best studied at the excitation wavelength of 244 nm since nucleic acids are in resonance at this wavelength. These results highlight the potential of the presented approach to identify active bacterial cells. This work can serve as a basis for the development of new techniques for the rapid and efficient detection of active bacteria cells without the need for a cultivation step.
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8
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Douglas C, Turner JMA. Advances and challenges in genetic technologies to produce single-sex litters. PLoS Genet 2020; 16:e1008898. [PMID: 32701961 PMCID: PMC7377362 DOI: 10.1371/journal.pgen.1008898] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
There is currently a requirement for single-sex litters for many applications, including agriculture, pest control, and reducing animal culling in line with the 3Rs principles: Reduction, Replacement, and Refinement. The advent of CRISPR/Cas9 genome editing presents a new opportunity with which to potentially generate all-female or all-male litters. We review some of the historical nongenetic strategies employed to generate single-sex litters and investigate how genetic and genome editing techniques are currently being used to produce all-male or all-female progeny. Lastly, we speculate on future technologies for generating single-sex litters and the possible associated challenges.
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Affiliation(s)
- Charlotte Douglas
- Sex Chromosome Biology Laboratory, The Francis Crick Institute, London, United Kingdom
| | - James M A Turner
- Sex Chromosome Biology Laboratory, The Francis Crick Institute, London, United Kingdom
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9
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Žukovskaja O, Kloß S, Blango MG, Ryabchykov O, Kniemeyer O, Brakhage AA, Bocklitz TW, Cialla-May D, Weber K, Popp J. UV-Raman Spectroscopic Identification of Fungal Spores Important for Respiratory Diseases. Anal Chem 2018; 90:8912-8918. [PMID: 29956919 DOI: 10.1021/acs.analchem.8b01038] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Fungal spores are one of several environmental factors responsible for causing respiratory diseases like asthma, chronic obstructive pulmonary disease (COPD), and aspergillosis. These spores also are able to trigger exacerbations during chronic forms of disease. Different fungal spores may contain different allergens and mycotoxins, therefore the health hazards are varying between the species. Thus, it is highly important quickly to identify the composition of fungal spores in the air. In this study, UV-Raman spectroscopy with an excitation wavelength of 244 nm was applied to investigate eight different fungal species implicated in respiratory diseases worldwide. Here, we demonstrate that darkly colored spores can be directly examined, and UV-Raman spectroscopy provides the information sufficient for classifying fungal spores. Classification models on the genus, species, and strain levels were built using a combination of principal component analysis and linear discriminant analysis followed by evaluation with leave-one-batch-out-cross-validation. At the genus level an accuracy of 97.5% was achieved, whereas on the species level four different Aspergillus species were classified with 100% accuracy. Finally, classifying three strains of Aspergillus fumigatus an accuracy of 89.4% was reached. These results demonstrate that UV-Raman spectroscopy in combination with innovative chemometrics allows for fast identification of fungal spores and can be a potential alternative to currently used time-consuming cultivation.
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Affiliation(s)
- Olga Žukovskaja
- Institute of Physical Chemistry and Abbe Center of Photonics , Friedrich Schiller University Jena , Helmholtzweg 4 , 07745 Jena , Germany.,Research Campus Infectognostic , Philosophenweg 7 , 07743 Jena , Germany.,Leibniz Institute of Photonic Technology Jena-Member of the Research Alliance "Leibniz Health Technologies" , Albert-Einstein-Straße 9 , 07745 Jena , Germany
| | - Sandra Kloß
- Institute of Physical Chemistry and Abbe Center of Photonics , Friedrich Schiller University Jena , Helmholtzweg 4 , 07745 Jena , Germany
| | - Matthew G Blango
- Department of Molecular and Applied Microbiology , Leibniz Institute for Natural Product Research and Infection Biology (HKI) , Adolf-Reichwein-Straße 23 , 07745 Jena , Germany
| | - Oleg Ryabchykov
- Institute of Physical Chemistry and Abbe Center of Photonics , Friedrich Schiller University Jena , Helmholtzweg 4 , 07745 Jena , Germany.,Leibniz Institute of Photonic Technology Jena-Member of the Research Alliance "Leibniz Health Technologies" , Albert-Einstein-Straße 9 , 07745 Jena , Germany
| | - Olaf Kniemeyer
- Department of Molecular and Applied Microbiology , Leibniz Institute for Natural Product Research and Infection Biology (HKI) , Adolf-Reichwein-Straße 23 , 07745 Jena , Germany
| | - Axel A Brakhage
- Department of Molecular and Applied Microbiology , Leibniz Institute for Natural Product Research and Infection Biology (HKI) , Adolf-Reichwein-Straße 23 , 07745 Jena , Germany.,Department of Microbiology and Molecular Biology , Institute for Microbiology, Friedrich Schiller University Jena , Neugasse 25 , 07743 Jena , Germany
| | - Thomas W Bocklitz
- Institute of Physical Chemistry and Abbe Center of Photonics , Friedrich Schiller University Jena , Helmholtzweg 4 , 07745 Jena , Germany.,Leibniz Institute of Photonic Technology Jena-Member of the Research Alliance "Leibniz Health Technologies" , Albert-Einstein-Straße 9 , 07745 Jena , Germany
| | - Dana Cialla-May
- Institute of Physical Chemistry and Abbe Center of Photonics , Friedrich Schiller University Jena , Helmholtzweg 4 , 07745 Jena , Germany.,Research Campus Infectognostic , Philosophenweg 7 , 07743 Jena , Germany.,Leibniz Institute of Photonic Technology Jena-Member of the Research Alliance "Leibniz Health Technologies" , Albert-Einstein-Straße 9 , 07745 Jena , Germany
| | - Karina Weber
- Institute of Physical Chemistry and Abbe Center of Photonics , Friedrich Schiller University Jena , Helmholtzweg 4 , 07745 Jena , Germany.,Research Campus Infectognostic , Philosophenweg 7 , 07743 Jena , Germany.,Leibniz Institute of Photonic Technology Jena-Member of the Research Alliance "Leibniz Health Technologies" , Albert-Einstein-Straße 9 , 07745 Jena , Germany
| | - Jürgen Popp
- Institute of Physical Chemistry and Abbe Center of Photonics , Friedrich Schiller University Jena , Helmholtzweg 4 , 07745 Jena , Germany.,Research Campus Infectognostic , Philosophenweg 7 , 07743 Jena , Germany.,Leibniz Institute of Photonic Technology Jena-Member of the Research Alliance "Leibniz Health Technologies" , Albert-Einstein-Straße 9 , 07745 Jena , Germany
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10
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Krautwald-Junghanns ME, Cramer K, Fischer B, Förster A, Galli R, Kremer F, Mapesa EU, Meissner S, Preisinger R, Preusse G, Schnabel C, Steiner G, Bartels T. Current approaches to avoid the culling of day-old male chicks in the layer industry, with special reference to spectroscopic methods. Poult Sci 2018; 97:749-757. [DOI: 10.3382/ps/pex389] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2017] [Accepted: 11/17/2017] [Indexed: 11/20/2022] Open
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11
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Galli R, Preusse G, Uckermann O, Bartels T, Krautwald-Junghanns ME, Koch E, Steiner G. In ovo sexing of chicken eggs by fluorescence spectroscopy. Anal Bioanal Chem 2016; 409:1185-1194. [DOI: 10.1007/s00216-016-0116-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 11/11/2016] [Accepted: 11/24/2016] [Indexed: 11/28/2022]
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12
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Galli R, Preusse G, Uckermann O, Bartels T, Krautwald-Junghanns ME, Koch E, Steiner G. In Ovo Sexing of Domestic Chicken Eggs by Raman Spectroscopy. Anal Chem 2016; 88:8657-63. [DOI: 10.1021/acs.analchem.6b01868] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
| | | | | | - Thomas Bartels
- Clinic
for Birds and Reptiles, Faculty of Veterinary Medicine, University of Leipzig, An den Tierkliniken 17, D-04103 Leipzig, Germany
| | | | | | - Gerald Steiner
- Faculty
of Physics, Vilnius University, Sauletekio av. 9 bl. 3, LT-10222 Vilnius, Lithuania
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13
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Steiner G, Preusse G, Zimmerer C, Krautwald-Junghanns ME, Sablinskas V, Fuhrmann H, Koch E, Bartels T. Label free molecular sexing of monomorphic birds using infrared spectroscopic imaging. Talanta 2016; 150:155-61. [DOI: 10.1016/j.talanta.2015.12.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Revised: 11/29/2015] [Accepted: 12/08/2015] [Indexed: 11/27/2022]
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14
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Sathyavathi R, Dingari NC, Barman I, Prasad PSR, Prabhakar S, Rao DN, Dasari RR, Undamatla J. Raman spectroscopy provides a powerful, rapid diagnostic tool for the detection of tuberculous meningitis in ex vivo cerebrospinal fluid samples. JOURNAL OF BIOPHOTONICS 2013; 6:567-72. [PMID: 22887773 PMCID: PMC4094343 DOI: 10.1002/jbio.201200110] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2012] [Revised: 07/11/2012] [Accepted: 07/12/2012] [Indexed: 05/25/2023]
Abstract
In this letter, we propose a novel method for diagnosis of tuberculous meningitis using Raman spectroscopy. The silicate Raman signature obtained from Mycobacterium tuberculosis positive cases enables specific and sensitive detection of tuberculous meningitis from acquired cerebrospinal fluid samples. The association of silicates with the tuberculosis mycobacterium is discussed. We envision that this new method will facilitate rapid diagnosis of tuberculous meningitis without application of exogenous reagents or dyes and can be aptly used as a complementary screening tool to the existing gold standard methods.
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Affiliation(s)
- R. Sathyavathi
- School of Physics, University of Hyderabad, Hyderabad, India
| | - Narahara Chari Dingari
- George R. Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, USA
| | - Ishan Barman
- George R. Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, USA
| | - P. S. R. Prasad
- National Geophysical Research Institute (Council for Scientific and Industrial Research), Hyderabad, India
| | | | - D. Narayana Rao
- School of Physics, University of Hyderabad, Hyderabad, India
| | - Ramachandra R. Dasari
- George R. Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, USA
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15
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Ghorpade PB, Gupta PK, Prakash V, Cuthbert RJ, Kulkarni M, Prakash N, Das A, Sharma AK, Saini M. Molecular sexing of threatened Gyps vultures: an important strategy for conservation breeding and ecological studies. SPRINGERPLUS 2012; 1:62. [PMID: 23316450 PMCID: PMC3540358 DOI: 10.1186/2193-1801-1-62] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2012] [Accepted: 12/07/2012] [Indexed: 11/10/2022]
Abstract
During the last two decades populations of three resident species of Gyps vulture have declined dramatically and are now threatened with extinction in South Asia. Sex identification of vultures is of key importance for the purpose of conservation breeding as it is desirable to have an equal sex ratio in these monogamous species which are housed together in large colony aviaries. Because vultures are monomorphic, with no differences in external morphology or plumage colour between the sexes, other methods are required for sex identification. Molecular methods for sex identification in birds rely on allelic length or nucleotide sequence discrimination of the chromohelicase-DNA binding (CHD) gene located on male and female chromosomes ZZ and ZW, respectively. We characterized the partial sequences of CHD alleles from Gyps indicus, Gyps bengalensis, Gyps himalayensis and Aegypius monachus and analysed the applicability of five molecular methods of sex identification of 46 individual vultures including 26 known-sex G. bengalensis and G. indicus. The results revealed that W-specific PCR in combination with ZW-common PCR is a quick, accurate and simple method, and is ideal for sex identification of vultures. The method is also suitable to augment ecological studies for identifying sex of these endangered birds during necropsy examinations especially when gonads are not apparent, possibly due to regression during non-breeding seasons.
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Affiliation(s)
- Prabhakar B Ghorpade
- Centre for Wildlife Conservation, Management & Disease Surveillance, Indian Veterinary Research Institute, Izatnagar, 243 122 India
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16
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Burkhardt A, Meister S, Bergmann R, Koch E. Influence of storage on the position of the germinal disc in the fertilized unincubated chicken egg. Poult Sci 2011; 90:2169-73. [DOI: 10.3382/ps.2010-01179] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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17
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Kumamoto Y, Taguchi A, Smith NI, Kawata S. Deep UV resonant Raman spectroscopy for photodamage characterization in cells. BIOMEDICAL OPTICS EXPRESS 2011; 2:927-36. [PMID: 21483614 PMCID: PMC3072131 DOI: 10.1364/boe.2.000927] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2011] [Revised: 02/18/2011] [Accepted: 03/09/2011] [Indexed: 05/22/2023]
Abstract
We employed deep UV (DUV) Raman spectroscopy for characterization of molecular photodamage in cells. 244 nm light excitation Raman spectra were measured for HeLa cells exposed to the excitation light for different durations. In the spectra obtained with the shortest exposure duration (0.25 sec at 16 µW/µm(2) irradiation), characteristic resonant Raman bands of adenine and guanine at 1483 cm(-1) and tryptophan and tyrosine at 1618 cm(-1) were clearly visible. With increasing exposure duration (up to 12.5 sec), these biomolecular Raman bands diminished, while a photoproduct Raman band at 1611 cm(-1) grew. By exponential function fitting analyses, intensities of these characteristic three bands were correlated with sample exposure duration at different intensities of excitation light. We then suggest practical excitation conditions effective for DUV Raman observation of cells without photodamage-related spectral distortion.
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Affiliation(s)
- Yasuaki Kumamoto
- Department of Applied Physics, Graduate School of Engineering, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Nanophotonics Laboratory, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako Saitama 351-0198, Japan
| | - Atsushi Taguchi
- Nanophotonics Laboratory, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako Saitama 351-0198, Japan
| | - Nicholas Isaac Smith
- Biophotonics Laboratory, Immunology Frontier Research Center, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Satoshi Kawata
- Department of Applied Physics, Graduate School of Engineering, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Nanophotonics Laboratory, RIKEN Advanced Science Institute, 2-1 Hirosawa, Wako Saitama 351-0198, Japan
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19
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Bildgebung und Bildverarbeitung. BIOMED ENG-BIOMED TE 2010. [DOI: 10.1515/bmt.2010.701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Walter A, Erdmann S, Bocklitz T, Jung EM, Vogler N, Akimov D, Dietzek B, Rösch P, Kothe E, Popp J. Analysis of the cytochrome distribution via linear and nonlinear Raman spectroscopy. Analyst 2010; 135:908-17. [DOI: 10.1039/b921101b] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Sexing of turkey poults by Fourier transform infrared spectroscopy. Anal Bioanal Chem 2009; 396:465-70. [DOI: 10.1007/s00216-009-3273-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2009] [Revised: 10/27/2009] [Accepted: 10/29/2009] [Indexed: 10/20/2022]
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Harz M, Kiehntopf M, Stöckel S, Rösch P, Straube E, Deufel T, Popp J. Direct analysis of clinical relevant single bacterial cells from cerebrospinal fluid during bacterial meningitis by means of micro-Raman spectroscopy. JOURNAL OF BIOPHOTONICS 2009; 2:70-80. [PMID: 19343686 DOI: 10.1002/jbio.200810068] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Bacterial meningitis is a relevant public health concern. Despite the availability of modern treatment strategies it is still a life-threatening disease that causes significant morbidity and mortality. Therefore, an initial treatment approach plays an important role. For in-time identification of specific bacterial pathogens of the cerebrospinal fluid (CSF) and emerged antimicrobial and adjunctive treatment, microbiological examination is of major importance. This contribution spotlights the potential of micro-Raman spectroscopy as a biomedical assay for direct analysis of bacteria in cerebrospinal fluid of patients with bacterial meningitis. The influence of miscellaneous artificial environments on several bacterial species present during bacterial meningitis was studied by means of Raman spectroscopy. The application of chemometric data interpretation via hierarchical cluster analysis (HCA) allows for the differentiation of in vitro cultured bacterial cells and can also be achieved on a single cell level. Moreover as proof of principle the investigation of a CSF sample obtained from a patient with meningococcal meningitis showed that the cerebrospinal fluid matrix does not mask the Raman spectrum of a bacterial cell notably since via chemometric analysis with HCA an identification of N. meningitidis cells from patients with bacterial meningitis could be achieved.
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Affiliation(s)
- Michaela Harz
- Institute of Physical Chemistry, Friedrich-Schiller-Universität Jena, Helmholtzweg 4, Jena, Germany
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