1
|
Xiang J, Devenport JM, Carter AJ, Staser KW, Kim MY, O' Neal J, Ritchey JK, Rettig MP, Gao F, Rettig G, Turk R, Lee BH, Cooper ML, DiPersio JF. An "off-the-shelf" CD2 universal CAR-T therapy for T-cell malignancies. Leukemia 2023; 37:2448-2456. [PMID: 37798328 PMCID: PMC10681896 DOI: 10.1038/s41375-023-02039-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 09/01/2023] [Accepted: 09/13/2023] [Indexed: 10/07/2023]
Abstract
T-cell malignancies are associated with frequent relapse and high morbidity, which is partly due to the lack of effective or targeted treatment options. To broaden the use of CAR-T cells in pan T-cell malignancies, we developed an allogeneic "universal" CD2-targeting CAR-T cell (UCART2), in which the CD2 antigen is deleted to prevent fratricide, and the T-cell receptor is removed to prevent GvHD. UCART2 demonstrated efficacy against T-ALL and CTCL and prolonged the survival of tumor-engrafted NSG mice in vivo. To evaluate the impact of CD2 on CAR-T function, we generated CD19 CAR-T cells (UCART19) with or without CD2 deletion, single-cell secretome analysis revealed that CD2 deletion in UCART19 reduced frequencies of the effector cytokines (Granzyme-B and IFN-γ). We also observed that UCART19ΔCD2 had reduced anti-tumor efficacy compared to UCART19 in a CD19+NALM6 xenograft model. Of note is that the reduced efficacy resulting from CD2 deletion was reversed when combined with rhIL-7-hyFc, a long-acting recombinant human interleukin-7. Treatment with rhIL-7-hyFc prolonged UCART2 persistence and increased survival in both the tumor re-challenge model and primary patient T-ALL model in vivo. Together, these data suggest that allogeneic fratricide-resistant UCART2, in combination with rhIL-7-hyFc, could be a suitable approach for treating T-cell malignancies.
Collapse
Affiliation(s)
- Jingyu Xiang
- Division of Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Jessica M Devenport
- Division of Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Alun J Carter
- Division of Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Karl W Staser
- Division of Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
- Division of Dermatology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Miriam Y Kim
- Division of Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Julie O' Neal
- Division of Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Julie K Ritchey
- Division of Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Michael P Rettig
- Division of Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA
| | - Feng Gao
- Division of Public Health Sciences, Department of Surgery, Washington University in St. Louis, St. Louis, MO, USA
| | | | - Rolf Turk
- Integrated DNA Technologies, Coralville, IA, USA
| | | | - Matthew L Cooper
- Division of Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA.
| | - John F DiPersio
- Division of Oncology, Department of Medicine, Washington University in St. Louis, St. Louis, MO, USA.
| |
Collapse
|
2
|
Kath J, Du W, Pruene A, Braun T, Thommandru B, Turk R, Sturgeon ML, Kurgan GL, Amini L, Stein M, Zittel T, Martini S, Ostendorf L, Wilhelm A, Akyüz L, Rehm A, Höpken UE, Pruß A, Künkele A, Jacobi AM, Volk HD, Schmueck-Henneresse M, Stripecke R, Reinke P, Wagner DL. Pharmacological interventions enhance virus-free generation of TRAC-replaced CAR T cells. Mol Ther Methods Clin Dev 2022; 25:311-330. [PMID: 35573047 PMCID: PMC9062427 DOI: 10.1016/j.omtm.2022.03.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 03/29/2022] [Indexed: 12/30/2022]
Abstract
Chimeric antigen receptor (CAR) redirected T cells are potent therapeutic options against hematological malignancies. The current dominant manufacturing approach for CAR T cells depends on retroviral transduction. With the advent of gene editing, insertion of a CD19-CAR into the T cell receptor (TCR) alpha constant (TRAC) locus using adeno-associated viruses for gene transfer was demonstrated, and these CD19-CAR T cells showed improved functionality over their retrovirally transduced counterparts. However, clinical-grade production of viruses is complex and associated with extensive costs. Here, we optimized a virus-free genome-editing method for efficient CAR insertion into the TRAC locus of primary human T cells via nuclease-assisted homology-directed repair (HDR) using CRISPR-Cas and double-stranded template DNA (dsDNA). We evaluated DNA-sensor inhibition and HDR enhancement as two pharmacological interventions to improve cell viability and relative CAR knockin rates, respectively. While the toxicity of transfected dsDNA was not fully prevented, the combination of both interventions significantly increased CAR knockin rates and CAR T cell yield. Resulting TRAC-replaced CD19-CAR T cells showed antigen-specific cytotoxicity and cytokine production in vitro and slowed leukemia progression in a xenograft mouse model. Amplicon sequencing did not reveal significant indel formation at potential off-target sites with or without exposure to DNA-repair-modulating small molecules. With TRAC-integrated CAR+ T cell frequencies exceeding 50%, this study opens new perspectives to exploit pharmacological interventions to improve non-viral gene editing in T cells.
Collapse
Affiliation(s)
- Jonas Kath
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Weijie Du
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Alina Pruene
- Regenerative Immune Therapies Applied, Clinics of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Hannover-Braunschweig Region, Germany
| | - Tobias Braun
- Regenerative Immune Therapies Applied, Clinics of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Hannover-Braunschweig Region, Germany
| | | | - Rolf Turk
- Integrated DNA Technologies, Inc., Coralville, IA 52241, USA
| | | | - Gavin L. Kurgan
- Integrated DNA Technologies, Inc., Coralville, IA 52241, USA
| | - Leila Amini
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Maik Stein
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Tatiana Zittel
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Stefania Martini
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Lennard Ostendorf
- Department of Nephrology and Intensive Care Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
- Deutsches Rheuma-Forschungszentrum (DRFZ), A Leibniz Institute, Berlin, Germany
| | | | | | - Armin Rehm
- Department of Translational Tumorimmunology, Max-Delbrück-Center for Molecular Medicine (MDC), 13125 Berlin, Germany
| | - Uta E. Höpken
- Department of Microenvironmental Regulation in Autoimmunity and Cancer, Max-Delbrück-Center for Molecular Medicine (MDC), 13125 Berlin, Germany
| | - Axel Pruß
- Institute of Transfusion Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
| | - Annette Künkele
- Department of Pediatric Oncology and Hematology, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
- Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- German Cancer Consortium (DKTK), 10117 Berlin, Germany
| | | | - Hans-Dieter Volk
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
- Institute of Medical Immunology, Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Michael Schmueck-Henneresse
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Renata Stripecke
- Regenerative Immune Therapies Applied, Clinics of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School, Hannover, Germany
- German Center for Infection Research (DZIF), Hannover-Braunschweig Region, Germany
- Clinic I for Internal Medicine, Cancer Center Cologne Essen, University Hospital Cologne, Cologne, Germany
| | - Petra Reinke
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
| | - Dimitrios L. Wagner
- BIH Center for Regenerative Therapies (BCRT), Berlin Institute of Health (BIH) at Charité - Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
- Berlin Center for Advanced Therapies (BeCAT), Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
- Institute of Transfusion Medicine, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Berlin, Germany
- Institute of Medical Immunology, Campus Virchow-Klinikum, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany
- Corresponding author Dimitrios Laurin Wagner, MD, PhD, Berlin Center for Advanced Therapies (BeCAT) BIH Center for Regenerative Therapies (BCRT) Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health (BIH), Augustenburger Platz 1, 13353 Berlin, Germany.
| |
Collapse
|
3
|
Schubert MS, Thommandru B, Woodley J, Turk R, Yan S, Kurgan G, McNeill MS, Rettig GR. Optimized design parameters for CRISPR Cas9 and Cas12a homology-directed repair. Sci Rep 2021; 11:19482. [PMID: 34593942 PMCID: PMC8484621 DOI: 10.1038/s41598-021-98965-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 09/13/2021] [Indexed: 12/26/2022] Open
Abstract
CRISPR-Cas proteins are RNA-guided nucleases used to introduce double-stranded breaks (DSBs) at targeted genomic loci. DSBs are repaired by endogenous cellular pathways such as non-homologous end joining (NHEJ) and homology-directed repair (HDR). Providing an exogenous DNA template during repair allows for the intentional, precise incorporation of a desired mutation via the HDR pathway. However, rates of repair by HDR are often slow compared to the more rapid but less accurate NHEJ-mediated repair. Here, we describe comprehensive design considerations and optimized methods for highly efficient HDR using single-stranded oligodeoxynucleotide (ssODN) donor templates for several CRISPR-Cas systems including S.p. Cas9, S.p. Cas9 D10A nickase, and A.s. Cas12a delivered as ribonucleoprotein (RNP) complexes. Features relating to guide RNA selection, donor strand preference, and incorporation of blocking mutations in the donor template to prevent re-cleavage were investigated and were implemented in a novel online tool for HDR donor template design. These findings allow for high frequencies of precise repair utilizing HDR in multiple mammalian cell lines. Tool availability: https://www.idtdna.com/HDR.
Collapse
Affiliation(s)
- Mollie S Schubert
- Integrated DNA Technologies, Inc., 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Bernice Thommandru
- Integrated DNA Technologies, Inc., 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Jessica Woodley
- Integrated DNA Technologies, Inc., 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Rolf Turk
- Integrated DNA Technologies, Inc., 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Shuqi Yan
- Integrated DNA Technologies, Inc., 1710 Commercial Park, Coralville, IA, 52241, USA
- BGI Genomics, BGI-Shenzhen, Shenzhen, 518083, China
| | - Gavin Kurgan
- Integrated DNA Technologies, Inc., 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Matthew S McNeill
- Integrated DNA Technologies, Inc., 1710 Commercial Park, Coralville, IA, 52241, USA
| | - Garrett R Rettig
- Integrated DNA Technologies, Inc., 1710 Commercial Park, Coralville, IA, 52241, USA.
| |
Collapse
|
4
|
Kurgan G, Turk R, Li H, Roberts N, Rettig GR, Jacobi AM, Tso L, Sturgeon M, Mertens M, Noten R, Florus K, Behlke MA, Wang Y, McNeill MS. CRISPAltRations: a validated cloud-based approach for interrogation of double-strand break repair mediated by CRISPR genome editing. Mol Ther Methods Clin Dev 2021; 21:478-491. [PMID: 33981780 PMCID: PMC8082044 DOI: 10.1016/j.omtm.2021.03.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 03/29/2021] [Indexed: 12/26/2022]
Abstract
CRISPR systems enable targeted genome editing in a wide variety of organisms by introducing single- or double-strand DNA breaks, which are repaired using endogenous molecular pathways. Characterization of on- and off-target editing events from CRISPR proteins can be evaluated using targeted genome resequencing. We characterized DNA repair fingerprints that result from non-homologous end joining (NHEJ) after double-stranded breaks (DSBs) were introduced by Cas9 or Cas12a for >500 paired treatment/control experiments. We found that building biological understanding of the repair into a novel analysis tool (CRISPAltRations) improved the quality of the results. We validated our software using simulated, targeted amplicon sequencing data (11 guide RNAs [gRNAs] and 603 on- and off-target locations) and demonstrated that CRISPAltRations outperforms other publicly available software tools in accurately annotating CRISPR-associated indels and homology-directed repair (HDR) events. We enable non-bioinformaticians to use CRISPAltRations by developing a web-accessible, cloud-hosted deployment, which allows rapid batch processing of samples in a graphical user interface (GUI) and complies with HIPAA security standards. By ensuring that our software is thoroughly tested, version controlled, and supported with a user interface (UI), we enable resequencing analysis of CRISPR genome editing experiments to researchers no matter their skill in bioinformatics.
Collapse
Affiliation(s)
- Gavin Kurgan
- Integrated DNA Technologies, Coralville, IA 52241, USA
| | - Rolf Turk
- Integrated DNA Technologies, Coralville, IA 52241, USA
| | - Heng Li
- Department of Data Sciences, Dana-Farber Cancer Institute, Boston, MA 02215
| | | | | | | | - Lauren Tso
- Integrated DNA Technologies, Coralville, IA 52241, USA
| | | | | | | | | | | | - Yu Wang
- Integrated DNA Technologies, Coralville, IA 52241, USA
| | | |
Collapse
|
5
|
Daher M, Basar R, Gokdemir E, Baran N, Uprety N, Nunez Cortes AK, Mendt M, Kerbauy LN, Banerjee PP, Shanley M, Imahashi N, Li L, Lim FLWI, Fathi M, Rezvan A, Mohanty V, Shen Y, Shaim H, Lu J, Ozcan G, Ensley E, Kaplan M, Nandivada V, Bdiwi M, Acharya S, Xi Y, Wan X, Mak D, Liu E, Jiang XR, Ang S, Muniz-Feliciano L, Li Y, Wang J, Kordasti S, Petrov N, Varadarajan N, Marin D, Brunetti L, Skinner RJ, Lyu S, Silva L, Turk R, Schubert MS, Rettig GR, McNeill MS, Kurgan G, Behlke MA, Li H, Fowlkes NW, Chen K, Konopleva M, Champlin RE, Shpall EJ, Rezvani K. Targeting a cytokine checkpoint enhances the fitness of armored cord blood CAR-NK cells. Blood 2021; 137:624-636. [PMID: 32902645 PMCID: PMC7869185 DOI: 10.1182/blood.2020007748] [Citation(s) in RCA: 139] [Impact Index Per Article: 46.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 08/29/2020] [Indexed: 12/22/2022] Open
Abstract
Immune checkpoint therapy has resulted in remarkable improvements in the outcome for certain cancers. To broaden the clinical impact of checkpoint targeting, we devised a strategy that couples targeting of the cytokine-inducible Src homology 2-containing (CIS) protein, a key negative regulator of interleukin 15 (IL-15) signaling, with fourth-generation "armored" chimeric antigen receptor (CAR) engineering of cord blood-derived natural killer (NK) cells. This combined strategy boosted NK cell effector function through enhancing the Akt/mTORC1 axis and c-MYC signaling, resulting in increased aerobic glycolysis. When tested in a lymphoma mouse model, this combined approach improved NK cell antitumor activity more than either alteration alone, eradicating lymphoma xenografts without signs of any measurable toxicity. We conclude that targeting a cytokine checkpoint further enhances the antitumor activity of IL-15-secreting armored CAR-NK cells by promoting their metabolic fitness and antitumor activity. This combined approach represents a promising milestone in the development of the next generation of NK cells for cancer immunotherapy.
Collapse
Affiliation(s)
- May Daher
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Rafet Basar
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Elif Gokdemir
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Natalia Baran
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Nadima Uprety
- Department of Stem Cell Transplantation and Cellular Therapy and
| | | | - Mayela Mendt
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Lucila Nassif Kerbauy
- Department of Stem Cell Transplantation and Cellular Therapy and
- Department of Stem Cell Transplantation and Cellular Therapy, Hospital Israelita Albert Einstein, Sao Paulo, Brazil
- Human Genome and Stem Cell Research Center, Department of Genetics and Evolutionary Biology, Biosciences Institute, University of Sao Paulo, Sao Paulo, Brazil
| | | | - Mayra Shanley
- Department of Stem Cell Transplantation and Cellular Therapy and
| | | | - Li Li
- Department of Stem Cell Transplantation and Cellular Therapy and
| | | | - Mohsen Fathi
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX
| | - Ali Rezvan
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX
| | - Vakul Mohanty
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Yifei Shen
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Hila Shaim
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Junjun Lu
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Gonca Ozcan
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Emily Ensley
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Mecit Kaplan
- Department of Stem Cell Transplantation and Cellular Therapy and
| | | | - Mustafa Bdiwi
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Sunil Acharya
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Yuanxin Xi
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Xinhai Wan
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Duncan Mak
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Enli Liu
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Xin Ru Jiang
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Sonny Ang
- Department of Stem Cell Transplantation and Cellular Therapy and
| | | | - Ye Li
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Jing Wang
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Shahram Kordasti
- System Cancer Immunology, Comprehensive Cancer Centre, King's College London, London, United Kingdom
| | - Nedyalko Petrov
- System Cancer Immunology, Comprehensive Cancer Centre, King's College London, London, United Kingdom
| | - Navin Varadarajan
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX
| | - David Marin
- Department of Stem Cell Transplantation and Cellular Therapy and
| | - Lorenzo Brunetti
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX
| | | | - Shangrong Lyu
- C.T. Bauer College of Business, University of Houston, Houston, TX
| | - Leiser Silva
- C.T. Bauer College of Business, University of Houston, Houston, TX
| | - Rolf Turk
- Integrated DNA Technologies, Coralville, IA
| | | | | | | | | | | | - Heng Li
- Dana-Farber/Harvard Cancer Center, Boston, MA; and
| | - Natalie W Fowlkes
- Veterinary Medicine and Surgery, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Ken Chen
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX
| | - Marina Konopleva
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
| | | | | | - Katayoun Rezvani
- Department of Stem Cell Transplantation and Cellular Therapy and
| |
Collapse
|
6
|
Đuričić D, Vince S, Lojkić M, Jelušić S, Turk R, Valpotić H, Gračner D, Maćešić N, Folnožić I, Šostar Z, Samardžija M. Effects of dietary clinoptilolite on reproductive performance, serum progesterone and insulin-like growth factor-1 concentrations in dairy cows during pregnancy and lactation. Pol J Vet Sci 2021; 23:69-75. [PMID: 32233302 DOI: 10.24425/pjvs.2020.132750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The objective of this study was to evaluate the effects of dietary zeolite clinoptilolite on re- productive performance, serum progesterone and insulin-like growth factor 1 (IGF-1) concentra- tions in 78 Holstein Friesian (HF) cows during pregnancy and lactation. The cows were divided into two groups comprising 40 (control group; CON) and 38 (CPL group) cows. To assess repro- ductive performance of HF cows the following variables were registered: the interval from calv- ing to first insemination (days open to first service, DFS), the interval from calving to pregnancy (days open to pregnancy, DOP), and the number of services per pregnancy (NSP). The average values of progesterone (5.64±0.59 ng/mL vs. 5.16±0.64 ng/mL) were not statistically different (p⟨0.05) and IGF-1 levels (400.17±17.72 ng/mL vs. 348.36±20.39 ng/mL) were higher in the CON than in the CPL group which received 50 g of clinoptilolite twice a day. However, in the CPL group ovarian cyclity resumed on days 40 and 60 postpartum. In addition, DFS (p⟨0.05) and DOP (p>0.05) were shorter in the CPL than in the CON group (115.1±19.9 and 137.5±36.3 days vs. 124.2±17.3 and 143.8±33.5 days, respectively). During 305 days of lactation, milk production was higher in the CPL vs. CON (8325.5±628.8 kg vs. 8050±586.8 kg). The NSP was lower in the CPL than in CON group (1.91 vs. 2.14). The dietary clinoptilolite supplement had a positive in- fluence on milk yield, exhibited modulating effects on endocrine status of dairy cows, and im- proved reproductive performance, with the decreased NSP, and fewer DFS and DOP.
Collapse
Affiliation(s)
- D Đuričić
- Veterinary Practice Đurđevac, Malinov trg 7, 48 350 Đurđevac, Croatia
| | - S Vince
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| | - M Lojkić
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| | - S Jelušić
- Andrija Stampar Teaching Institute for Public Health, Zagreb, Mirogojska 16, 10000 Zagreb, Croatia
| | - R Turk
- Department for Pathophysiology, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| | - H Valpotić
- Department of Animal Nutrition and Dietetics, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| | - D Gračner
- Clinic for Internal Diseases, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| | - N Maćešić
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| | - I Folnožić
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| | - Z Šostar
- Andrija Stampar Teaching Institute for Public Health, Zagreb, Mirogojska 16, 10000 Zagreb, Croatia
| | - M Samardžija
- Clinic for Obstetrics and Reproduction, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| |
Collapse
|
7
|
Soran O, Karadeniz P, Aktas I, Genc C, Ilkaya M, Kocalar A, Barutcu C, Akdag E, Oztep M, Sergen M, Yigitbas K, Turk R, Cesur F, Dagli R, Ustundag M. A new model to implement a structured enhanced education and follow-up program in primary prevention for coronary artery disease. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Primary prevention programs for coronary artery disease (CAD) may be effective in improving health-related behavioral outcomes. However, the implementation and especially the maintanance of these programs can be very challenging mainly due to staffing cost. Thus, the present study was designed to assess the feasibility and effectiveness of a longitudinally structured, enhanced education and follow-up program for CAD prevention in an area where the diverse population and economy are major problems.
Methods
SANKO Coronary Artery Disesae Prevention Project (SCAD-PPI) was designed as a longitudinal study and utilized medical school students to conduct the entire project under the supervision of professors. It started in 2014 and had 2 different education and training phases. In the first phase; every school year, 2nd year Medical students underwent a one-year, specially designed training program on primary prevention for CAD. In the second phase, which took place in the 2nd year of the study, a series of conferences on primary prevention for CAD were organized by the University and local municipalities for underserved populations. Participants were prospectively assigned to an intervention where pre and post conference knowledge were collected and assessed. Every intervention was conducted by specially trained 3rd year Medical students and an education booklet which was specifically designed for this study was given to the participants. Every other month thereafter, for 6 months, each participant was followed by phone. At the 6 month follow -up, data was collected to assess the impact of enhanced education and follow-up program on behavioral outcomes.
Results
A total of 135 participant were enrolled; 79% were women, mean age was 41±13 years, only 29% had a graduate school degree; 56% were not working. Mean BMI was 28.3±5.1kg/m2. Overall knowledge on CAD risk factors, primary prevention measures, diet and daily exercise habits were very poor. After the enhanced education and follow-up program there was a significant improvement on the knowledge of CAD risk factors and primary prevention measures (p<0.001). More importantly, the follow-up program led participants to implement those positive changes into their lives and maintain a healthy life style. A separate cost analysis showed significant savings.
Conclusion
This is the first study which showed that a longitudinally structured training program of medical students could be utilized to implement an enhanced education and follow–up program for primary prevention of CAD in an economically challenged, underserved population with successful outcomes. This model program is not only cost-effective and beneficial for public interest but also enhances active interaction of medical students with patients at a very early stage of their career.
Funding Acknowledgement
Type of funding source: None
Collapse
Affiliation(s)
- O Soran
- University of Pittsburgh, Cardiology, Pittsburgh, United States of America
| | | | | | - C.C Genc
- SANKO University, Gaziantep, Turkey
| | | | | | | | - E Akdag
- SANKO University, Gaziantep, Turkey
| | - M Oztep
- SANKO University, Gaziantep, Turkey
| | - M Sergen
- SANKO University, Gaziantep, Turkey
| | | | - R Turk
- SANKO University, Gaziantep, Turkey
| | | | - R.S Dagli
- University of Pittsburgh, Cardiology, Pittsburgh, United States of America
| | | |
Collapse
|
8
|
Shapiro J, Iancu O, Jacobi AM, McNeill MS, Turk R, Rettig GR, Amit I, Tovin-Recht A, Yakhini Z, Behlke MA, Hendel A. Increasing CRISPR Efficiency and Measuring Its Specificity in HSPCs Using a Clinically Relevant System. Mol Ther Methods Clin Dev 2020; 17:1097-1107. [PMID: 32478125 PMCID: PMC7251314 DOI: 10.1016/j.omtm.2020.04.027] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 04/29/2020] [Indexed: 12/26/2022]
Abstract
Genome editing of human cluster of differentiation 34+ (CD34+) hematopoietic stem and progenitor cells (HSPCs) holds great therapeutic potential. This study aimed to optimize on-target, ex vivo genome editing using the CRISPR-Cas9 system in CD34+ HSPCs and to create a clear workflow for precise identification of off-target effects. Modified synthetic guide RNAs (gRNAs), either 2-part gRNA or single-guide RNA (sgRNA), were delivered to CD34+ HSPCs as part of ribonucleoprotein (RNP) complexes, targeting therapeutically relevant genes. The addition of an Alt-R electroporation enhancer (EE), a short, single-stranded oligodeoxynucleotide (ssODN), significantly increased editing efficiency in CD34+ HSPCs. Notably, similar editing improvement was observed when excess gRNA over Cas9 protein was used, providing a DNA-free alternative suitable for therapeutic applications. Furthermore, we demonstrated that sgRNA may be preferable over 2-part gRNA in a locus-specific manner. Finally, we present a clear experimental framework suitable for the unbiased identification of bona fide off-target sites by Genome-Wide, Unbiased Identification of Double-Strand Breaks (DSBs) Enabled by Sequencing (GUIDE-seq), as well as subsequent editing quantification in CD34+ HSPCs using rhAmpSeq. These findings may facilitate the implementation of genome editing in CD34+ HSPCs for research and therapy and can be adapted for other hematopoietic cells.
Collapse
Affiliation(s)
- Jenny Shapiro
- Institute of Nanotechnology and Advanced Materials, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Ortal Iancu
- Institute of Nanotechnology and Advanced Materials, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | | | | | - Rolf Turk
- Integrated DNA Technologies, Coralville, IA 52241, USA
| | | | - Ido Amit
- Department of Computer Science, Interdisciplinary Center, Herzliya 4610101, Israel
| | - Adi Tovin-Recht
- Institute of Nanotechnology and Advanced Materials, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Zohar Yakhini
- Department of Computer Science, Interdisciplinary Center, Herzliya 4610101, Israel.,Department of Computer Science, Technion-Israel Institute of Technology, Haifa 3200003, Israel
| | - Mark A Behlke
- Integrated DNA Technologies, Coralville, IA 52241, USA
| | - Ayal Hendel
- Institute of Nanotechnology and Advanced Materials, The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 5290002, Israel
| |
Collapse
|
9
|
Li W, Chan C, Zeng C, Turk R, Behlke MA, Cheng X, Dong Y. Rational Design of Small Molecules to Enhance Genome Editing Efficiency by Selectively Targeting Distinct Functional States of CRISPR-Cas12a. Bioconjug Chem 2020; 31:542-546. [PMID: 32119776 DOI: 10.1021/acs.bioconjchem.0c00062] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
CRISPR-Cas12a, a type-V CRISPR-Cas endonuclease, is an effective genome editing platform. To improve the gene editing efficiency of Cas12a, we rationally designed small molecule enhancers through a combined computational approach. First, we used extensive molecular dynamics (MD) simulations to explore the conformational landscape of Cas12a from Acidaminococcus (AsCas12a), revealing distinct conformational states that could be targeted by small molecules to modulate its genome editing function. We then identified 57 compounds that showed different binding behavior and stabilizing effects on these distinct conformational states using molecular docking. After experimental testing 6 of these 57 compounds, compound 1, quinazoline-2,4(1H,3H)-dione, was found particularly promising in enhancing the AsCas12a-mediated genome editing efficiency in human cells. Compound 1 was shown to act like a molecular "glue" at the interface between AsCas12a and crRNA near the 5'-handle region, thus specifically stabilizing the enzyme-crRNA complex. These results provide a new paradigm for future design of small molecules to modulate the genome editing of the CRISPR-Cas systems.
Collapse
Affiliation(s)
- Wenqing Li
- Division of Pharmaceutics & Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
| | - Chun Chan
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
| | - Chunxi Zeng
- Division of Pharmaceutics & Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
| | - Rolf Turk
- Integrated DNA Technologies, Inc., Coralville, Iowa 52241, United States
| | - Mark A Behlke
- Integrated DNA Technologies, Inc., Coralville, Iowa 52241, United States
| | - Xiaolin Cheng
- Division of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States
| | - Yizhou Dong
- Division of Pharmaceutics & Pharmacology, College of Pharmacy, The Ohio State University, Columbus, Ohio 43210, United States.,Department of Biomedical Engineering, The Center for Clinical and Translational Science, The Comprehensive Cancer Center, Dorothy M. Davis Heart & Lung Research Institute, Department of Radiation Oncology, The Ohio State University, Columbus, Ohio 43210, United States
| |
Collapse
|
10
|
Fader RR, Tao MA, Gaudiani MA, Turk R, Nwachukwu BU, Esposito CI, Ranawat AS. The role of lumbar lordosis and pelvic sagittal balance in femoroacetabular impingement. Bone Joint J 2018; 100-B:1275-1279. [DOI: 10.1302/0301-620x.100b10.bjj-2018-0060.r1] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Aims The purpose of this study was to evaluate spinopelvic mechanics from standing and sitting positions in subjects with and without femoroacetabular impingement (FAI). We hypothesize that FAI patients will experience less flexion at the lumbar spine and more flexion at the hip whilst changing from standing to sitting positions than subjects without FAI. This increase in hip flexion may contribute to symptomatology in FAI. Patients and Methods Male subjects were prospectively enrolled to the study (n = 20). Mean age was 31 years old (22 to 41). All underwent clinical examination, plain radiographs, and dynamic imaging using EOS. Subjects were categorized into three groups: non-FAI (no radiographic or clinical FAI or pain), asymptomatic FAI (radiographic and clinical FAI but no pain), and symptomatic FAI (patients with both pain and radiographic FAI). FAI was defined as internal rotation less than 15° and alpha angle greater than 60°. Subjects underwent standing and sitting radiographs in order to measure spine and femoroacetabular flexion. Results Compared with non-FAI controls, symptomatic patients with FAI had less flexion at the spine (mean 22°, sd 12°, vs mean 35°, sd 8°; p = 0.04) and more at the hip (mean 72°, sd 6°, vs mean 62°, sd 8°; p = 0.047). Subjects with asymptomatic FAI had more spine flexion and similar hip flexion when compared to symptomatic FAI patients. Both FAI groups also sat with more anterior pelvic tilt than control patients. There were no differences in standing alignment among groups. Conclusion Symptomatic patients with FAI require more flexion at the hip to achieve sitting position due to their inability to compensate through the lumbar spine. With limited spine flexion, FAI patients sit with more anterior pelvic tilt, which may lead to impingement between the acetabulum and proximal femur. Differences in spinopelvic mechanics between FAI and non-FAI patients may contribute to the progression of FAI symptoms. Cite this article: Bone Joint J 2018;100-B:1275–9.
Collapse
Affiliation(s)
| | - M. A. Tao
- University of Nebraska Medical Center, Omaha, Nebraska, USA
| | - M. A. Gaudiani
- Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - R. Turk
- University of San Diego School of Medicine, San Diego, California, USA
| | | | | | - A. S. Ranawat
- Hospital for Special Surgery, New York, New York, USA
| |
Collapse
|
11
|
Vakulskas CA, Dever DP, Rettig GR, Turk R, Jacobi AM, Collingwood MA, Bode NM, McNeill MS, Yan S, Camarena J, Lee CM, Park SH, Wiebking V, Bak RO, Gomez-Ospina N, Pavel-Dinu M, Sun W, Bao G, Porteus MH, Behlke MA. A high-fidelity Cas9 mutant delivered as a ribonucleoprotein complex enables efficient gene editing in human hematopoietic stem and progenitor cells. Nat Med 2018; 24:1216-1224. [PMID: 30082871 PMCID: PMC6107069 DOI: 10.1038/s41591-018-0137-0] [Citation(s) in RCA: 461] [Impact Index Per Article: 76.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 06/25/2018] [Indexed: 01/17/2023]
Abstract
Translation of the CRISPR-Cas9 system to human therapeutics holds high promise. However, specificity remains a concern especially when modifying stem cell populations. We show that existing rationally engineered Cas9 high-fidelity variants have reduced on-target activity when using the therapeutically relevant ribonucleoprotein (RNP) delivery method. Therefore, we devised an unbiased bacterial screen to isolate variants that retain activity in the RNP format. Introduction of a single point mutation, p.R691A, in Cas9 (high-fidelity (HiFi) Cas9) retained the high on-target activity of Cas9 while reducing off-target editing. HiFi Cas9 induces robust AAV6-mediated gene targeting at five therapeutically relevant loci (HBB, IL2RG, CCR5, HEXB, and TRAC) in human CD34+ hematopoietic stem and progenitor cells (HSPCs) as well as primary T cells. We also show that HiFi Cas9 mediates high-level correction of the sickle cell disease (SCD)-causing p.E6V mutation in HSPCs derived from patients with SCD. We anticipate that HiFi Cas9 will have wide utility for both basic science and therapeutic genome-editing applications.
Collapse
Affiliation(s)
| | - Daniel P Dever
- Department of Pediatrics, Stanford University, Stanford, CA, USA
| | | | - Rolf Turk
- Integrated DNA Technologies, Inc., Coralville, IA, USA
| | | | | | - Nicole M Bode
- Integrated DNA Technologies, Inc., Coralville, IA, USA
| | | | - Shuqi Yan
- Integrated DNA Technologies, Inc., Coralville, IA, USA
| | - Joab Camarena
- Department of Pediatrics, Stanford University, Stanford, CA, USA
| | - Ciaran M Lee
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - So Hyun Park
- Department of Bioengineering, Rice University, Houston, TX, USA
| | - Volker Wiebking
- Department of Pediatrics, Stanford University, Stanford, CA, USA
| | - Rasmus O Bak
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Aarhus Institute of Advanced Studies (AIAS), Aarhus University, Aarhus, Denmark
| | | | - Mara Pavel-Dinu
- Department of Pediatrics, Stanford University, Stanford, CA, USA
| | - Wenchao Sun
- Biomaterials and Advanced Drug Delivery Laboratory, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Gang Bao
- Department of Bioengineering, Rice University, Houston, TX, USA
| | | | - Mark A Behlke
- Integrated DNA Technologies, Inc., Coralville, IA, USA.
| |
Collapse
|
12
|
Jacobi AM, Rettig GR, Turk R, Collingwood MA, Zeiner SA, Quadros RM, Harms DW, Bonthuis PJ, Gregg C, Ohtsuka M, Gurumurthy CB, Behlke MA. Simplified CRISPR tools for efficient genome editing and streamlined protocols for their delivery into mammalian cells and mouse zygotes. Methods 2017; 121-122:16-28. [PMID: 28351759 PMCID: PMC5761324 DOI: 10.1016/j.ymeth.2017.03.021] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2017] [Revised: 02/09/2017] [Accepted: 03/23/2017] [Indexed: 01/14/2023] Open
Abstract
Genome editing using the CRISPR/Cas9 system requires the presence of guide RNAs bound to the Cas9 endonuclease as a ribonucleoprotein (RNP) complex in cells, which cleaves the host cell genome at sites specified by the guide RNAs. New genetic material may be introduced during repair of the double-stranded break via homology dependent repair (HDR) if suitable DNA templates are delivered with the CRISPR components. Early methods used plasmid or viral vectors to make these components in the host cell, however newer approaches using recombinant Cas9 protein with synthetic guide RNAs introduced directly as an RNP complex into cells shows faster onset of action with fewer off-target effects. This approach also enables use of chemically modified synthetic guide RNAs that have improved nuclease stability and reduces the risk of triggering an innate immune response in the host cell. This article provides detailed methods for genome editing using the RNP approach with synthetic guide RNAs using lipofection or electroporation in mammalian cells or using microinjection in murine zygotes, with or without addition of a single-stranded HDR template DNA.
Collapse
Affiliation(s)
- Ashley M Jacobi
- Integrated DNA Technologies, Inc., Coralville, IA 52241, USA
| | | | - Rolf Turk
- Integrated DNA Technologies, Inc., Coralville, IA 52241, USA
| | | | - Sarah A Zeiner
- Integrated DNA Technologies, Inc., Coralville, IA 52241, USA
| | - Rolen M Quadros
- Mouse Genome Engineering Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Donald W Harms
- Mouse Genome Engineering Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Paul J Bonthuis
- Department of Neurobiology & Anatomy, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Christopher Gregg
- Department of Neurobiology & Anatomy, University of Utah School of Medicine, Salt Lake City, UT 84132, USA; Department of Human Genetics, University of Utah School of Medicine, Salt Lake City, UT 84132, USA
| | - Masato Ohtsuka
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, School of Medicine, Tokai University, Kanagawa 259-1193, Japan; Center for Matrix Biology and Medicine, Graduate School of Medicine, Tokai University, Kanagawa 259-1193, Japan; The Institute of Medical Sciences, Tokai University, Kanagawa 259-1193, Japan
| | - Channabasavaiah B Gurumurthy
- Mouse Genome Engineering Core Facility, Vice Chancellor for Research Office, University of Nebraska Medical Center, Omaha, NE 68198, USA; Developmental Neuroscience, Munroe Meyer Institute for Genetics and Rehabilitation, University of Nebraska Medical Center, Omaha, NE 68198, USA.
| | - Mark A Behlke
- Integrated DNA Technologies, Inc., Coralville, IA 52241, USA.
| |
Collapse
|
13
|
Đuričić D, Vince S, Valpotić H, Žura Žaja I, Turk R, Lojkić M, Getz I, Berta V, Samardžija M. The onset of puberty in Cameroon Dwarf goats kept as pets in northwestern Croatia. Reprod Domest Anim 2016; 52:278-282. [PMID: 27966828 DOI: 10.1111/rda.12892] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Accepted: 10/20/2016] [Indexed: 11/30/2022]
Abstract
The aim of this study was to determine onset of puberty in Cameroon Dwarf goats (CDGs) kept as pets in northwestern Croatia by determining progesterone (PGS) and insulin-like growth factor-I (IGF-I) levels in the blood by RIA methods. The first cyclic ovarian activity was estimated according to hormone profiles as determined in CDG in a moderate climate environment. Sixteen female CDG kids were kept in stables with access to pasture which provided space for exercise. The goat kids born in winter (December-January-February), spring (March-April-May), summer (June-July-August) and autumn (September-October-November) were assigned into four groups according to the season of the year of birth (n = 4 in each group). At 75 days of age at the initiation of the study, they weighed between 3.2 and 5.1 kg (4.24 ± 0.53 kg). The onset of ovulatory activity was determined by PGS and IGF-I serum concentrations every 10 days starting from 75 days to 155 days of age. The onset of puberty in CDG kids occurred on average at 141.15 ± 2.66 days of age, but varied depending on the season of birth. All CDG kids born during summer were in heat by 155 days of age. In the other groups (kids born in autumn, winter or spring), one goat in each group was not in heat. Changes in blood serum PGS and IGF-I concentrations during prepubertal and pubertal periods could aid in the evaluation of reproductive status and determination of the onset of puberty in CDG during all seasons of the year in a moderate climate region.
Collapse
Affiliation(s)
- D Đuričić
- Veterinary Practice Đurđevac, Đurđevac, Croatia
| | - S Vince
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - H Valpotić
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - I Žura Žaja
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - R Turk
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - M Lojkić
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - I Getz
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - V Berta
- Veterinary Practice Varaždin, Varaždin, Croatia
| | - M Samardžija
- Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| |
Collapse
|
14
|
Turk R, Hsiao JJ, Smits MM, Ng BH, Pospisil TC, Jones KS, Campbell KP, Wright ME. Molecular Signatures of Membrane Protein Complexes Underlying Muscular Dystrophy. Mol Cell Proteomics 2016; 15:2169-85. [PMID: 27099343 PMCID: PMC5083101 DOI: 10.1074/mcp.m116.059188] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Indexed: 01/16/2023] Open
Abstract
Mutations in genes encoding components of the sarcolemmal dystrophin-glycoprotein complex (DGC) are responsible for a large number of muscular dystrophies. As such, molecular dissection of the DGC is expected to both reveal pathological mechanisms, and provides a biological framework for validating new DGC components. Establishment of the molecular composition of plasma-membrane protein complexes has been hampered by a lack of suitable biochemical approaches. Here we present an analytical workflow based upon the principles of protein correlation profiling that has enabled us to model the molecular composition of the DGC in mouse skeletal muscle. We also report our analysis of protein complexes in mice harboring mutations in DGC components. Bioinformatic analyses suggested that cell-adhesion pathways were under the transcriptional control of NFκB in DGC mutant mice, which is a finding that is supported by previous studies that showed NFκB-regulated pathways underlie the pathophysiology of DGC-related muscular dystrophies. Moreover, the bioinformatic analyses suggested that inflammatory and compensatory mechanisms were activated in skeletal muscle of DGC mutant mice. Additionally, this proteomic study provides a molecular framework to refine our understanding of the DGC, identification of protein biomarkers of neuromuscular disease, and pharmacological interrogation of the DGC in adult skeletal muscle https://www.mda.org/disease/congenital-muscular-dystrophy/research.
Collapse
Affiliation(s)
- Rolf Turk
- From the ‡Howard Hughes Medical Institute, §Senator Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, ¶Department of Molecular Physiology and Biophysics, ‖Department of Neurology, **Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, The University of Iowa, Iowa City, Iowa
| | | | | | - Brandon H Ng
- ¶Department of Molecular Physiology and Biophysics
| | - Tyler C Pospisil
- From the ‡Howard Hughes Medical Institute, §Senator Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, ¶Department of Molecular Physiology and Biophysics, ‖Department of Neurology, **Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, The University of Iowa, Iowa City, Iowa
| | - Kayla S Jones
- From the ‡Howard Hughes Medical Institute, §Senator Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, ¶Department of Molecular Physiology and Biophysics, ‖Department of Neurology, **Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, The University of Iowa, Iowa City, Iowa
| | - Kevin P Campbell
- From the ‡Howard Hughes Medical Institute, §Senator Paul D. Wellstone Muscular Dystrophy Cooperative Research Center, ¶Department of Molecular Physiology and Biophysics, ‖Department of Neurology, **Department of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, The University of Iowa, Iowa City, Iowa
| | | |
Collapse
|
15
|
Folnožić I, Turk R, Đuričić D, Vince S, Pleadin J, Flegar-Meštrić Z, Valpotić H, Dobranić T, Gračner D, Samardžija M. Influence of Body Condition on Serum Metabolic Indicators of Lipid Mobilization and Oxidative Stress in Dairy Cows During the Transition Period. Reprod Domest Anim 2015; 50:910-7. [DOI: 10.1111/rda.12608] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 08/10/2015] [Indexed: 11/29/2022]
Affiliation(s)
- I Folnožić
- Faculty of Veterinary Medicine; University of Zagreb; Zagreb Croatia
| | - R Turk
- Faculty of Veterinary Medicine; University of Zagreb; Zagreb Croatia
| | - D Đuričić
- Veterinary Practice Đurđevac; Đurđevac Croatia
| | - S Vince
- Faculty of Veterinary Medicine; University of Zagreb; Zagreb Croatia
| | - J Pleadin
- Croatian Veterinary Institute; Zagreb Croatia
| | | | - H Valpotić
- Faculty of Veterinary Medicine; University of Zagreb; Zagreb Croatia
| | - T Dobranić
- Faculty of Veterinary Medicine; University of Zagreb; Zagreb Croatia
| | - D Gračner
- Faculty of Veterinary Medicine; University of Zagreb; Zagreb Croatia
| | - M Samardžija
- Faculty of Veterinary Medicine; University of Zagreb; Zagreb Croatia
| |
Collapse
|
16
|
Turk R, Podpečan O, Mrkun J, Flegar-Meštrić Z, Perkov S, Zrimšek P. The Effect of Seasonal Thermal Stress on Lipid Mobilisation, Antioxidant Status and Reproductive Performance in Dairy Cows. Reprod Domest Anim 2015; 50:595-603. [PMID: 25996438 DOI: 10.1111/rda.12534] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 04/19/2015] [Indexed: 11/28/2022]
Abstract
Heat stress is a major factor contributing to low fertility of dairy cows with a great economic impact in dairy industry. Heat-stressed dairy cows usually have reduced nutrient intake, resulting in a higher degree of negative energy balance (NEB). The aim of this study was to investigate the seasonal thermal effect on lipid metabolism, antioxidant activity and reproductive performance in dairy cows. Thirty-two healthy dairy heifers were included in the study. According to the ambient temperature, animals were divided into two groups: winter (N = 14) and summer season (N = 18). Metabolic parameters, paraoxonase-1 (PON1) activity and total antioxidant status (TAS) were monitored at the time of insemination (basal values) and from 1 week before until 8 weeks after calving. Number of services per conception and calving-to-conception (CC) interval were calculated from the farm recording data. Serum triglyceride, non-esterified fatty acids (NEFA) and beta-hydroxybutyrate (BHB) concentrations were significantly increased after calving in summer compared to winter, indicating higher degree of NEB in cows during summer. PON1 activity was significantly decreased after calving in both summer and winter group. TAS concentration was significantly lower in summer than that in winter. A significantly higher number of services were needed for conception in summer compared to winter, and CC interval was significantly longer in summer than that in winter as well. Additionally, reproductive performance significantly correlated with the severity of NEB, suggesting that lipid mobilization and lower antioxidant status contributed to poor reproduction ability in dairy cows during hot months.
Collapse
Affiliation(s)
- R Turk
- Department of Pathophysiology, Faculty of Veterinary Medicine, University of Zagreb, Zagreb, Croatia
| | - O Podpečan
- Savinian Veterinary Policlinic, Žalec, Slovenia.,Clinic for Reproduction and Horses, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - J Mrkun
- Clinic for Reproduction and Horses, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
| | - Z Flegar-Meštrić
- Department of Medical Biochemistry and Laboratory Medicine, "Merkur" University Hospital, Zagreb, Croatia
| | - S Perkov
- Department of Medical Biochemistry and Laboratory Medicine, "Merkur" University Hospital, Zagreb, Croatia
| | - P Zrimšek
- Clinic for Reproduction and Horses, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia
| |
Collapse
|
17
|
Turk R, Srisoparb W, Burridge J. Association between wrist extensor muscle onset timing and motor control accuracy in acute and chronic stroke patients. Physiotherapy 2015. [DOI: 10.1016/j.physio.2015.03.348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
18
|
Almeida AM, Bassols A, Bendixen E, Bhide M, Ceciliani F, Cristobal S, Eckersall PD, Hollung K, Lisacek F, Mazzucchelli G, McLaughlin M, Miller I, Nally JE, Plowman J, Renaut J, Rodrigues P, Roncada P, Staric J, Turk R. Animal board invited review: advances in proteomics for animal and food sciences. Animal 2015; 9:1-17. [PMID: 25359324 PMCID: PMC4301196 DOI: 10.1017/s1751731114002602] [Citation(s) in RCA: 76] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Accepted: 09/27/2014] [Indexed: 01/15/2023] Open
Abstract
Animal production and health (APH) is an important sector in the world economy, representing a large proportion of the budget of all member states in the European Union and in other continents. APH is a highly competitive sector with a strong emphasis on innovation and, albeit with country to country variations, on scientific research. Proteomics (the study of all proteins present in a given tissue or fluid - i.e. the proteome) has an enormous potential when applied to APH. Nevertheless, for a variety of reasons and in contrast to disciplines such as plant sciences or human biomedicine, such potential is only now being tapped. To counter such limited usage, 6 years ago we created a consortium dedicated to the applications of Proteomics to APH, specifically in the form of a Cooperation in Science and Technology (COST) Action, termed FA1002--Proteomics in Farm Animals: www.cost-faproteomics.org. In 4 years, the consortium quickly enlarged to a total of 31 countries in Europe, as well as Israel, Argentina, Australia and New Zealand. This article has a triple purpose. First, we aim to provide clear examples on the applications and benefits of the use of proteomics in all aspects related to APH. Second, we provide insights and possibilities on the new trends and objectives for APH proteomics applications and technologies for the years to come. Finally, we provide an overview and balance of the major activities and accomplishments of the COST Action on Farm Animal Proteomics. These include activities such as the organization of seminars, workshops and major scientific conferences, organization of summer schools, financing Short-Term Scientific Missions (STSMs) and the generation of scientific literature. Overall, the Action has attained all of the proposed objectives and has made considerable difference by putting proteomics on the global map for animal and veterinary researchers in general and by contributing significantly to reduce the East-West and North-South gaps existing in the European farm animal research. Future activities of significance in the field of scientific research, involving members of the action, as well as others, will likely be established in the future.
Collapse
Affiliation(s)
- A. M. Almeida
- Instituto de Investigação Científica Tropical, CVZ – Centro de Veterinária e Zootecnia, Av. Univ. Técnica, 1300-477 Lisboa, Portugal
- CIISA – Centro Interdisciplinar de Investigação em Sanidade Animal, 1300-477 Lisboa, Portugal
- ITQB – Instituto de Tecnologia Química e Biológica da UNL, 2780-157 Oeiras, Portugal
- IBET – Instituto de Biologia Experimental e Tecnológica, 2780-157 Oeiras, Portugal
| | - A. Bassols
- Departament de Bioquímica i Biologia Molecular, Facultat de Veterinària, Universitat Autònoma de Barcelona,08193 Cerdanyola del Vallès, Spain
| | - E. Bendixen
- Institute of Molecular Biology and Genetics, Aarhus University, 8000 Aarhus C, Denmark
| | - M. Bhide
- Laboratory of Biomedical Microbiology and Immunology, University of Veterinary Medicine and Pharmacy, Komenskeho-73 Kosice, Slovakia
| | - F. Ceciliani
- Department of Veterinary Science and Public Health, Università di Milano, Via Celoria 10, 20133 Milano, Italy
| | - S. Cristobal
- Department of Clinical and Experimental Medicine, Division of Cell Biology, Faculty of Health Science, Linköping University, SE-581 85 Linköping, Sweden
- IKERBASQUE, Basque Foundation for Science, Department of Physiology, Faculty of Medicine and Dentistry, University of Basque Country,48940 Leioa, Bizkaia, Spain
| | - P. D. Eckersall
- Institute of Biodiversity, Animal Health and Comparative Medicine, University of Glasgow, Garscube Estate, Glasgow G61 1QH, UK
| | - K. Hollung
- Nofima AS, PO Box 210, NO-1431 Aas, Norway
| | - F. Lisacek
- Swiss Institute of Bioinformatics, CMU – Rue Michel-Servet 1, 1211 Geneva 4, Switzerland
| | - G. Mazzucchelli
- Mass Spectrometry Laboratory, GIGA-Research, Department of Chemistry, University of Liège, 4000 Liège, Belgium
| | - M. McLaughlin
- Division of Veterinary Bioscience, School of Veterinary Medicine, University of Glasgow, Garscube Estate, Glasgow G61 1QH, UK
| | - I. Miller
- Institute of Medical Biochemistry, University of Veterinary Medicine, Veterinaerplatz 1, A-1210 Vienna, Austria
| | - J. E. Nally
- National Animal Disease Center, Bacterial Diseases of Livestock Research Unit, Agricultural Research Service, United States Department of Agriculture, Ames, IA 50010, USA
| | - J. Plowman
- Food & Bio-Based Products, AgResearch, Lincoln Research Centre, Christchurch 8140, New Zealand
| | - J. Renaut
- Department of Environment and Agrobiotechnologies, Centre de Recherche Public – Gabriel Lippmann, 41 rue du Brill, L-4422 Belvaux, Luxembourg
| | - P. Rodrigues
- CCMAR – Centre of Marine Sciences of Algarve, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
| | - P. Roncada
- Department of Veterinary Science and Public Health, Istituto Sperimentale Italiano L. Spallanzani Milano, University of Milano, 20133 Milano, Italy
| | - J. Staric
- Clinic for Ruminants with Ambulatory Clinic, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia
| | - R. Turk
- Department of Pathophysiology, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 10000 Zagreb, Croatia
| |
Collapse
|
19
|
Turk R, Podpečan O, Mrkun J, Kosec M, Flegar-Meštrić Z, Perkov S, Starič J, Robić M, Belić M, Zrimšek P. Lipid mobilisation and oxidative stress as metabolic adaptation processes in dairy heifers during transition period. Anim Reprod Sci 2013; 141:109-15. [DOI: 10.1016/j.anireprosci.2013.07.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2013] [Revised: 07/30/2013] [Accepted: 07/31/2013] [Indexed: 12/01/2022]
|
20
|
Moraz ML, Pythoud C, Turk R, Rothenberger S, Pasquato A, Campbell KP, Kunz S. Cell entry of Lassa virus induces tyrosine phosphorylation of dystroglycan. Cell Microbiol 2012; 15:689-700. [PMID: 23279385 PMCID: PMC3805106 DOI: 10.1111/cmi.12078] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 11/14/2012] [Accepted: 11/19/2012] [Indexed: 11/29/2022]
Abstract
The extracellular matrix (ECM) receptor dystroglycan (DG) serves as a cellular receptor for the highly pathogenic arenavirus Lassa virus (LASV) that causes a haemorrhagic fever with high mortality in human. In the host cell, DG provides a molecular link between the ECM and the actin cytoskeleton via the adapter proteins utrophin or dystrophin. Here we investigated post-translational modifications of DG in the context of LASV cell entry. Using the tyrosine kinase inhibitor genistein, we found that tyrosine kinases are required for efficient internalization of virus particles, but not virus-receptor binding. Engagement of cellular DG by LASV envelope glycoprotein (LASV GP) in human epithelial cells induced tyrosine phosphorylation of the cytoplasmic domain of DG. LASV GP binding to DG further resulted in dissociation of the adapter protein utrophin from virus-bound DG. This virus-induced dissociation of utrophin was affected by genistein treatment, suggesting a role of receptor tyrosine phosphorylation in the process.
Collapse
Affiliation(s)
- Marie-Laurence Moraz
- Institute of Microbiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | | | | | | | | | | | | |
Collapse
|
21
|
Sabolić Pipinić I, Varnai VM, Turk R, Breljak D, Kezić S, Macan J. Low frequency of filaggrin null mutations in Croatia and their relation with allergic diseases. Int J Immunogenet 2012; 40:192-8. [PMID: 23078034 DOI: 10.1111/iji.12006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Revised: 07/16/2012] [Accepted: 09/20/2012] [Indexed: 12/12/2022]
Abstract
Filaggrin gene (FLG) null mutations are considered associated with atopic dermatitis. This study was conducted to determine the prevalence of FLG null mutations R501X, 2282del4, R2447X and S3247X in the Croatian population and their role in the occurrence of allergic diseases including atopic dermatitis, allergic rhinitis, asthma and allergic contact dermatitis (ACD). Study enrolled 440 freshmen with defined allergic diseases by means of both present symptoms in International Study of Asthma and Allergies in Childhood questionnaire (relevant respiratory and/or skin symptoms) and markers of allergic sensitization (positive skin prick and/or patch test). FLG null mutations were successfully genotyped in 423 students of which 11 (2.6%) were carriers of FLG null mutation: 1/423 (0.2%) was heterozygous for R501X and 10/423 (2.4%) were heterozygous for 2282del4. No carriers of R2447X and S3247X mutations were identified. In wild-type FLG carriers (412 subjects), atopic dermatitis was present in 45 (11%), allergic rhinitis in 70 (17%) and allergic asthma in 29 (7%) students. Twenty-five of 393 (7%) patch-tested wild-type FLG carriers had ACD. Among 11 FLG null mutation carriers, four had one or more allergic diseases, and five had reported skin symptoms without defined allergic sensitization (positive skin prick test and/or patch test). FLG null mutations were not confirmed as a predictor of analysed allergic diseases, but were confirmed as an independent predictor of skin symptoms (OR 17.19, 95% CI 3.41-86.6, P < 0.001). Our results in general indicate a low frequency of FLG null mutations in the studied Croatian population supporting a theory of a latitude-dependent distribution of FGL null mutations in Europe, with a decreasing north-south gradient of R501X and 2282del4 mutation frequency. The relation between FLG null mutations and skin disorders was confirmed.
Collapse
Affiliation(s)
- I Sabolić Pipinić
- Occupational Health and Environmental Medicine Unit, Institute for Medical Research and Occupational Health, Zagreb, Croatia.
| | | | | | | | | | | |
Collapse
|
22
|
Djuricic D, Filipovic N, Dobranic T, Lipar M, Prvanovic N, Turk R, Gracner D, Stanin D, Folnozic I, Samardzija M. Progesterone and insulin-like growth factor I levels in blood of Boer goats during puerperium out-of-season in a mild climate region. Reprod Domest Anim 2011; 46:776-80. [PMID: 21241379 DOI: 10.1111/j.1439-0531.2010.01740.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The aims of this study were to compare insulin-like growth factor-I (IGF-I) and progesterone concentrations as indicators of cycle activity in the blood of Boer goats during puerperium out-of-season in mild climate conditions and to investigate the influence of parity and litter size on the concentration of IGF-I and progesterone in serum during the study period. Twenty Boer (8 primiparous and 12 pluriparous) goats were examined in this study. Blood samples were taken every 4 days starting on the 3rd day and up to the 40th day of puerperium. IGF-I and progesterone (P4) blood levels were determined using radio immune assay (RIA). Results indicated cyclic ovarian activity outside the breeding season in 18 of 20 Boer goats. IGF-I levels in blood sera followed oestrus and cyclic ovarian activity. IGF-I concentrations correlated significantly with P4 concentrations. The IGF-I peak preceded the P4 peak by approximately 8 days in cycling goats. IGF-I and P4 blood levels were not influenced by parity or litter size. Changes in blood serum P4 and IGF-I concentrations levels during puerperal period can assist in the evaluation of reproductive status of goats.
Collapse
Affiliation(s)
- D Djuricic
- Department of Physiology and Radiobiology, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova, Zagreb, Croatia
| | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Vind AB, Andersen HE, Schwarz P, Skalska A, Salakowski A, Dubiel M, Fedak D, Grodzicki T, Annweiler C, Schott AM, Fantino B, Berrut G, Herrmann F, Beauchet O, Engels S, Schroll M, Popescu C, Onose G, Bojan A, van Zutphen M, Bemelmans W, de Groot L, Rea IM, Henry M, Young IS, Evans AE, Kee F, Ambien CF, Whitehead AS, Ryzhak G, Khavinson V, Kozlov L, Povoroznyuk V, Kivela SL, Nielsen DS, Nielsen W, Knold B, Ryg J, Nissen N, Brixen K, Bjorkman M, Sorva A, Tilvis R, Kannegaard PN, Jung A, Simonsen F, Sanders S, Puustinen J, Nurminen J, Lopponen M, Vahlberg T, Isoaho R, Kivela SL, Hayashi T, Ina K, Nomura H, Iguchi A, Rea IM, Henry M, Evans AE, Tiret L, Poire O, Cambien F, Pautex S, Notaridis G, Derame L, Zulian G, Ungar A, Fedeli A, Zanieri S, Pecchioni S, Belladonna M, Lambertucci L, Lotti E, Pepe G, Bambi A, Morrione A, Masotti G, Marchionni M, Mazzella F, Napoli C, Vitale DF, Viati L, Longobardi G, Lucchetti G, Abete P, Rengo F, Pautex S, Herrmann F, le Lous P, Gold G, Lihavainen K, Sipila S, Rantanenv T, Hartikainen S, Biswas S, Willicombe S, Myint P, Rashidi F, Gillain D, Van Den Noortgate N, Van Der Mark S, Petersen H, Sejtved B, Melton R, Mur AZ, Catevilla AZ, Boix LA, Jordá P, Ranhoff AH, González E, Florian J, Bueso P, Nuotio M, Luukkaala T, Tammela TLJ, Jylhä M, De Antonio García MP, De Abia PG, Bergua AA, Mowinckel P, Orozco MC, Ruiz MC, Verdejo-Bravo C, De Saint-Hubert M, Divoy C, Schoevaerdts D, Swine C, Heppner HJ, Sieber C, Bertsch T, Volpato S, Heppner HJ, Sieber C, Heppner HJ, Sieber C, Heppner HJ, Sieber C, Michael A, Scoyni R, Trani I, Schiaffini C, Sioulis F, Felli B, Aiello L, Belli P, Pacitti MT, Morelli A, D’imperio M, Falanga A, Carratelli D, Morocutti M, Kitisomprayoonkul W, Guerra G, Promsopa K, Chaiwanichsiri D, Ochiana V, Ghorghe S, Popescu G, Tekeira A, Khayat M, Povoroznyuk V, Grygoryeva N, Dzerovych N, Cavalieri M, Karasevskaya T, Mowe M, Skalska A, Fedak D, Grodzicki T, Soda K, Kano Y, Shingo T, Konishi F, Kawakami M, Maraldi C, Ulger Z, Cankurtaran M, Halil M, Yavuz BB, Orhan B, Dede D, Kavas GO, Kocaturk PA, Akyol O, Ariogul S, Guralnik JM, Pircalabu R, Hnidei R, Morosanu B, Rada C, Ionescu C, Yamada M, Kasagi F, Tatsukawa Y, Sasaki H, Alcalde P, Fellin R, Luque M, García M, Ariño S, Carmona G, Rizzoli R, Ammann P, Pressel E, Eddy C, Lilja A, Rønholt F, Pilotto A, Danbaek L, Van der Mark S, Ammann P, Kream B, Rosen C, Rizzoli R, Dubois-Ferrière V, Rizzoli R, Ammann P, Ditloto G, Addante F, Hussain W, Farrelly E, Marsden P, Brewer L, Fallon C, Murphy S, Jørgensen NR, Husted LB, Tofteng CL, Jensen JEB, Franceschi M, Eiken P, Nissen N, Langdahl BL, Schwarz P, Mcintosh S, Lacey E, Carvell C, Povoroznyuk V, Grygoryeva N, Kreslov Y, Leandro G, Dzerovych N, Ozerov I, Vayda V, Povoroznyuk V, Dzerovych N, Karasevskaya T, Povoroznyuk V, Vayda V, Böhmdorfer B, Frühwald T, D’onofrio G, Sommeregger U, Muster U, Böhmdorfer B, Frühwald T, Oeser B, Sommeregger U, Muster U, Cho C, Yoo B, Oh J, Corritore M, Cho K, Lee H, Clemmensen A, Lauridsen M, Nielsen NB, Crome P, Sinclair-Cohen J, Cherubini A, Oristrell J, Hertogh C, Niro V, Szczerbinska K, Lesauskaite V, Prada GI, Clarfield M, Topikova E, Dieppe P, Gallagher P, O’mahony D, Harbig P, Barat I, Scarcelli C, Nielsen PL, Damsgaard EM, Maanen ACDV, Van Marum RJ, Knol W, Van Der Linden CMJ, Jansen PAF, Karlsson M, Berggren AC, Lampela P, Seripa D, Hartikainen S, Lavikainen P, Sulkava R, Huupponen R, Lonergan MT, Coughlan T, ’Neill DO, Lonergan MT, Coughlan T, ’Neill DO, Piccola BD, Krajèík S, Mikus P, Errasquin BM, Cuervo MS, Castellano CS, Silveira ED, Vicedo TB, Cruz-Jentoft AJ, Petrovic M, Cobbaert K, Ferrucci L, Van Der Stichele R, Rajska-Neumann A, Wieczorowska-Tobis K, Ryan C, Kennedy J, O’mahony D, Byrne S, Castellano CS, Fernández CG, Errasquín BM, Bhuachalla BN, Del Rey JM, Peña MIA, Cruz-Jentoft AJ, Trellu LT, Villaneau D, Parel Y, Vogt-Ferrier N, Vanakoski J, Jokinen T, Skippari L, Cotter PE, Iso-Aho M, Guillemard E, Lacoin F, Marcus EL, Caine Y, Kasem H, Gross M, Mukherjee S, Goupal K, Juszczak A, Mhaille BN, Mukherjee S, Romero E, Fernandez C, Ramos M, Gonzalez E, Fuentes M, Mora J, Martin J, Ribera JM, Berg N, Egan A, Vanmeerbeek M, Moreau A, Massart V, Giet D, Bojan A, Onose G, Popescu C, Jönsdóttir AB, Damkjær K, Elkholy K, Kavanagh A, Schroll M, Lindhardt T, Ozdemir L, Gozukara F, Yucel C, Turk R, Akdemir N, Park SMI, Kim DH, Quinlan N, O’connor M, O’neill D, Caffrey N, Lonergan MT, Trainor S, Gowran L, Falconer M, Carroll N, Dwyer C, Coughlan T, O’neill D, O’keeffe ST, Collins DR, Given K, O’neill D, Collins DR, Lund A, Michelet M, Kjeken I, Wyller TB, Sveen U, Meade R, Kristjansson SR, Anniss S, Kachhia A, Hickey A, O’hanlon A, Mcgee H, Shelley E, Horgan F, O’neill D, Osawa A, Maeshima S, Nesbakken A, Sawayama Y, Maeda S, Ohnishi H, Hamada M, Otaguro S, Furusyo N, Hayashi J, Bonet AT, Martorell LV, Truyols AG, Wyller TB, Homar FA, Malberti JC, Huertas P, Wagle J, Farner L, Flekkøy K, Wyller TB, Sandvik L, Eiklid K, Fure B, Bautmans I, Stensrød B, Engedal K, Rnould A, Baron R, Gallais JL, Giniès P, Benmedjahed K, Bartley M, O’neill D, Hürny C, Njemini R, Brack B, Mukherjee S, Chroinin DNI, Farooq SFS, Burke M, Duggan J, Power D, Kyne L, Qvist A, Jørgensen NR, Jansen B, Schwarz P, Sleiman I, Rozzini R, Barbisoni P, Ranhoff A, Trabucchi M, Rønholt F, Jacobsen HN, Rytter L, Seidahamd M, Vierendeels J, Al-Dhahi L, Vigder C, Ben-Israel Y, Kaykov E, Granot E, Raz R, Wulff T, Hendriksen C, Ziccardi P, Cacciatore F, de Backer J, Mazzella F, Viati L, Abete P, Ferrara N, Rengo F, Raschilas F, Adane D, Oziol E, Millot O, Boubakri C, de Waele E, Hemmi P, Tigoulet F, Faucher N, Blain H, Jeandel C, Blain H, Carriere I, Berard C, Favier F, Colvez A, Mets T, Sørensen KI, Brynningsen P, Damsgaard EM, Mehrabian S, Seux ML, Miralles I, Cohen M, Esculier MC, Rigaud AS, Ducasse V, Pilotto A, Lidy C, Samandel S, Geny C, Comte F, Gabelle A, Touchon J, Jeandel C, Morel N, Verny M, Riou B, Addante F, Boddaert J, Marquis C, Greffard S, Dieudonne B, Barrou Z, Boddaert J, Verny M, Bonnet D, Forest A, Verny M, Franceschi M, Boulanger C, Riou B, Malla Z, Boddaert J, Leandro G, D’onofrio G, D’ambrosio LP, Longo MG, Cascavilla L, Paris F, Pazienza AM, Piccola BD, Ferrucci L, Ungar A, Morrione A, Landi A, Caldi F, Maraviglia A, Rafanelli M, Ruffolo E, Chisciotti VM, Masotti G, Marchionni N, van der Velde N, Ziere G, van der Cammen TJM, Hofman B, Stricker BHC, Rodriguez-Pascual C, Moraga AV, Galan EP, Sanchez MJL, Manso AL, Carballido MT, Chiva MTO, Andion JMV, Sierra AL, Pillay I, Saunders J, Cunniffe J, Cooke J, Blot S, Cankurtaran M, Vandijck D, Danneels C, Vandewoude K, Peleman R, Piette AA, Verschraegen G, van den Noortgate N, Vogelaers D, Petrovic M, Skerris A, Kjear P, Cristoffersen J, Shou C, Seest LS, Oestergaard A, Rønholt F, Overgaard K, Donnellan C, Hickey A, Hevey D, O’neill D, van Munster B, Korevaar J, Zwinderman A, Levi M, Wiersinga J, Rooij S, White S, Mahony SO, Bayer A, Juliebo V, Bjøro K, Krogseth M, Ranhoff AH, Wyller TB, Duque AS, Silvestre J, Freitas P, Palma-Reis I, Lopes JP, Martins A, Batalha V, Campos L, Ekstrom H, Elmstahl S, Ivanoff SD, Hayashi T, Ina K, Hirai H, Iguchi A, Lee T, Gallagher P, Hegarty E, Connor MO, Mahony DO, Mkhailova O, Khavinson V, Kozlov L, Chopra NR, Jones DA, Huwez F, Frimann J, Koefoed M, Meyling R, Holm E, Gryglewska B, Sulicka J, Fornal M, Wizner B, Grodzicki T, O’connor L, Lonergan MT, Cogan N, Coughlan T, O’neill D, Collins DR, Prada GI, Fita IG, Prada S, Herghelegiu AM, Datu C, Lonergan MT, Kelleher F, Mcdermott R, Collins DR, Retornaz F, Monette J, Batist G, Monette M, Sourial N, Small D, Caplan S, Wan-Chow-Wah D, Puts MTE, Bergman H, Retornaz F, Sourial N, Seux V, Monette J, Soubeyrand J, Bergman H, Andrei V, Pircalabu R, Lupeanu E, Pena C, Turcu E, Raducanu I, Hnidei A, Morosanu B, Gherasim P, Gradinaru D, Rachita M, Ionescu I, Arino S, Coindreau F, Alcalde P, Serra J, Baldasseroni S, Romboli B, di Serio C, Orso F, Pellerito S, Mannucci E, Colombi C, Bartoli N, Masotti G, Marchionni N, Tarantini F, Barry P, Kinsella S, Twomey C, O’mahony D, Bezerra AW, Popescu G, Azevedo E, Nobrega J, Ghiorghe S, Coindreau F, Serra J, Duems O, Saez I, Clapera G, Arino S, Coindreau F, Serra J, Saez I, Duems O, Clpaera G, Arino S, Jones DA, Chopra NR, Guha K, Clarkson P, Koga T, Furusyo N, Ogawa E, Sawayama Y, Ai M, Otokozawa S, Schaefer EJ, Hayashi J, Lupeanu E, Andrei V, Turcu E, Pircalabu R, Raducanu I, Hnidei R, Morosanu B, Opris S, Ionescu C, Gherasim P, Mellingsaeter M, Wyller TB, Ranhoff AH, Popescu G, Teixeira J, Ghiorghe S, Azevedo E, Teixeira A, Rodriguez-Pascual C, Moraga AV, Carballido MT, Galan EP, Quintela S, Leiros A, Sanchez MJL, Chiva MTO, Sierra AL, Andion JMV, Rios CF, Seabra Pereira MF, Jorge E, Dias R, Verissimo MT, Santos L, Saldanha MH, Sinha S, Dave P, Hussain S, Ayub A, Vilches-Moraga A, Rodriguez-Pascual C, Paredes-Galan E, Leiro-Manso A, Gonzalez-Rios C, Torrente-Carballido M, Vega-Andion JM, Olcoz-Chiva MT, Lopez-Sierra A, Lopez-Sanchez MJ, Narro-Vidal M, Garcia Q, Bozoglu E, Isk AT, Comert B, Doruk H, Sohrt C, Brynningsen P, Damsgaard EM, Kat M, Vreeswijk R, de Jonghe J, van der Ploeg T, van Gool W, Eikelenboom P, Kalisvaart K, Kat M, de Jonghe J, Vreeswijk R, van der Ploeg T, van Gool W, Eikelenboom P, Kalisvaart K, Krogseth M, Juliebø V, Engedal K, Wyller TB, Sharma V, Soiza RL, Ferguson K, Shenkin SD, Seymour DG, Maclullich AMJ, van Munster B, van Breemen M, Moerland P, Speijer D, Rooij S, Hollmann M, Zwinderman A, Korevaar J, Vreeswijk R, Toornvliet A, Honing M, Bakker K, de Man T, de Jonghe JFM, Kalisvaart KJ, Bisschop MM, Sival R, Driesen J, Cappuccio M, Cilesi I, Cirinei E, Ruggiero C, Dell’aquila G, Gasperini B, Patacchini F, Mancioli G, Lauretani F, Bandinelli S, Maggio M, Ferrucci L, Cherubini A, Cruz-Jentoft AJ, de Tena Fontaneda A, Cano LR, Custureri R, Curiale V, Prete C, Cella A, Bonomini C, Barban G, Trasciatti S, Palummeri E, Gasperini B, Ruggiero C, Dell’aquila G, Cirinei E, Patacchini F, Mancioli G, Lauretani F, Bandinelli S, Maggio M, Ferrucci L, Cherubini A, Gold G, Giannakopoulos P, Hermmann F, Bouras C, Kovari E, Halil M, Deniz A, Yavuz B, Yavuz BB, Ülger Z, Cankurtaran M, Isik M, Cankurtaran ES, Aytemir K, Ariogul S, Kanaya K, Abe S, Sakai M, Iwamoto T, Korfitsen T, Moe C, Mecocci P, Mangiaasche F, Costanzi E, Cecchetti R, Rinaldi P, Serafini V, Amici S, Baglioni M, Bastiani P, Lovestone S, Prada GI, Ftta IG, Prada S, Herghelegiu AM, Datu C, Rozzini R, Sleiman I, Barbisoni P, Ranhoff A, Maggi S, Trabucchi M, Shafiei R, Johansen AH, Moe C, Lyngholm-Kxærby P, Kristiansen K, Lestrup C, Lund C, Jones E, Such P, van Puyvelde K, Mets T, Yavuz BB, Yavuz B, Cankurtaran M, Halil M, Ulger Z, Aytemir K, Oto A, Ariogul S, Yavuz BB, Cankurtaran M, Halil M, Ulger Z, Ariogul S, di Bari M, Lattanzio F, Sgadari A, Baccini M, Ercolani S, Rengo F, Senin U, Bernabei R, Marchionni N, Cherubini A, del Bianco L, Lamanna C, Gori F, Monami M, Marchionni N, Masotti G, Mannucci E, Foss CH, Vestbo E, Frøland A, Mogensen CE, Damsgaard EM, Mossello E, Simoni D, Boncinelli M, Gullo M, Mello AM, Lopilato E, Lamanna C, Gori F, Cavallini MC, Marchionni N, Mannucci E, Masotti M, Pena CM, Olaru OG, Pircalabu RM, Raducanu I, Rodriguez-Justo S, Narro-Vidal M, Garcia-Villar E, Rodriguez-Pascual C, Vilches-Moraga A, Olcoz-Chiva MT, Lopez-Sierra A, Vega-Andion JM, Lopez-Sanchez MJ, Torrente-Carballido M, Paredes-Galan E, Vilches-Moraga A, Abbas A, Grue R, Adie K, Fox J, Wileman L, Pattison T, Briggs S, Bhat S, Baker P, Akdemir N, Kapucu SS, Özdemir L, Akkus Y, Balci G, Akyar Y, Cankuran M, Halil M, Kayihan H, Uyanik M, Hazer O, Ariogul S, Cella A, Curiale V, Cuneo G, Fraguglia C, Trasciatti S, Palummeri E, Blundell A, Gordon A, Masud T, Gladman J, Sclater A, Curran V, Kirby B, Forristall J, Sharpe D, Anstey SA, Dawe D, Edwards S, White M, Celik SS, Kapucu SS, Akkuþ Y, Tuna Z, Szczerbinska K, Kijowska V, Mirewska E, Topor-Madry R, Czabanowska K, Maggi S, Franceschi M, Pilotto A, Noale M, Parisi GC, Crepaldi G, Van Gara R, Mcgee H, Winder R, O’neill D, Piers R, Vanden Noortgate N, Schrauwen W, Maertens S, Velghe A, Petrovic M, Benoit D, Cronin H, O’regan C, Kearney P, Moreira A, Kamiya Y, Whelan B, Kenny RA, Carpena-Ruiz M, Anton JM, de Antonio P, Verdejo C, Cruz-Jentoft AJ, Anton JM, Verdejo C, de Antonio P, Carpena M, Cruz-Jentoft AJ, Sanchez FJM, Alonso CF, del Castillo JG, Ferrer MF, Armengol JG, Villarroel P, Gregorio PG, Casado JMR, Leiros BG, Garcia FJG, Clemente MRP, Acha AA, Ramiez LFM, Ballesteros CM, Ibanez JMF, Andres SA, Maya RP, Soria JF, Checa M, Melich AE, Lang PO, Herrmann F, Michel JP, Cebrian A, Duiez-Domingo J, San-Martin M, Vantieghem KM, Terumalai K, Kaiser L, Trellu LT, Brandt MS, Jørgensen B, Nyhuus C, Lyager A, Hagedorn D, Holm E, Lauritsen J, Leners JC, Sibret MP, Mas MA, Renom A, Vazquez O, Miralles R, Cervera AM, Mathur A, Lord S, Mikes Z, Mikes P, Holckova J, Dukat A, Lietava J, Petrovicova J, Strelkova V, Kolesar J, Rokkedal L, Granberg P, Mortensen RS, Shipman K, Vincent B, Patel T, Yau C, Rehman R, Salam A, Ballentyne S, Aw D, Weerasuriya N, Lee S, Masud T, Barry P, O’connor M, O’sullivan F, Moriarty E, O’connor K, O’connor M, Bogen B, Bjordal JM, Kristensen MT, Moe-Nilssen R, Crome I, Lally F, Crome P, Curiale V, Custureri R, Prete C, Trasciatti S, Galliera EOO, Herrmann F, Petitpierre N, Michel JP, Kitisomprayoonkul W, Chaiwanichsiri D, Kristensen MT, Bandholm T, Bencke J, Ekdahl C, Kehlet H, Lauritsen J, Sørensen GV, Gonzalez A, Lazaro M, Gonzalez E, Ribera JM, Casado JMR, Gillett S, MacMahon M, Pedersen SJ, Borgbjerg FM, Schousboe B, Pedersen BD, Jørgensen HL, Duus BR, Lauritzen JB, Cooke J, Pillay I, Binkley N, Boonen S, Roux C, He W, Rosenberg R, Yang Z, Salonoja M, Aarnio P, Vahlberg T, Ktvelä SL, Salpakoski A, Portegijs E, Kallinen M, Sihvonen S, Kiviranta I, Alen M, Rantanen T, Sipilä S, Szczerbinska K, Sørensen GV, Lauritsen J, Vincent B, Way B, Vergis N, Battacharya B, Chatterjee A, Bryden E, Vind AB, Andersen HE, Pedersen KD, Jørgensen T, Schwarz P, Zintchouk D, Mørch M, Damsgaard EM, De Saint-Hubert M, Divoy C, Godart P, Schoevaerdts D, Swine C, Alonso CF, Sanchez FJM, del Castillo JG, Ferrer MF, Armengol JG, Villarroel P, Bravo CV, Casado JMR, Hovmand B, Larsen AE, Pedersen S, Vinkler S, Christensen K, Øresund CVU, Matera MG, Goffredo V, Franceschi M, D’onofrio G, Addante F, Gravina C, Urbano M, Seripa D, Dallapiccola B, Pilotto A, Chroinin DNI, O’brien H, Power D, Santillo E, Ventura G, Migale M, Cassano S, Cariello FP, Crane S, Takahashi P, Tung E, Chandra A, Yu-Ballard A, Hanson G, Vandewoude M, Hoeck S, Geerts J, Van Hal G, Van der Heyden J, Breda J, Weber P, Meluzínová H, Hrubanová J, Kubšová H, Polcarová V, Campbell P, Henderson E, Macmahon M, Pedersen ABL, Mørch MM, Foss CH, Franceschi M, Maggi S, Pilotto A, Noale M, Parisi G, Crepaldi G, Furusyo N, Koga T, Ohnishi H, Maeda S, Takeoka H, Toyoda K, Ogawa E, Sawayama Y, Hayashi J, Kamigaki M, Nakagawa I, Kumei Y, Hayashi N, Takasugi Y, Maggi S, Pilotto A, Noale M, Franceschi L, Parisi GC, Crepaldi G, Maggi S, Pilotto A, Franceschi M, Noale M, Parisi GC, Crepaldi G, Michael A, Bhangu A, Fisher G, Rees E, Labib M, Ogawa E, Furusyo N, Koga T, Sawayama Y, Hayashi J, Ohishi M, Takagi T, Fujisawa T, Katsuya T, Rakugi H, Pilotto A, Franceschi M, Ferrucci L, Rengo F, Bernabei R, Leandro G, Pilotto A, Franceschi M, Maggi S, Noale M, Parisi G, Crepaldi G, Cotter PE, Simon M, Quinn C, O’keeffe ST, Moy I, Crome P, Crome I, Frisher M, Daly K, Huber P, Hilleret H, Lang PO, Le Saint L, Chamot C, Giannakopoulos P, Gold G, Leckie K, Bayes H, Birschel P, Lundgren B, Eniry BM, Pillay I, Matzen LE, O’neill D, Garavan R, O’hanlon A, Mcgee H, Akdemir N, Kapucu S, Ozdemir L, Akkus Y, Balci G, Akyar I, Patacchini F, Ruggiero C, Dell’aquila G, Ferretti R, Mariani T, Gugliotta R, Cirinei E, Gasperini B, Lattanzio F, Bernabei R, Senin U, Cherubini C, Pedersen TS, Raun KN, Jespersen E, Sixt E, Takahashi P, Crane S, Tung E, Chandra A, Yu-Ballard A, Hanson G, Velghe A, Petermans J. Oral and Poster Papers Submitted for Presentation at the 5th Congress of the EUGMS “Geriatric Medicine in a Time of Generational Shift September 3–6, 2008 Copenhagen, Denmark. J Nutr Health Aging 2008. [DOI: 10.1007/bf02983206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
24
|
't Hoen PAC, de Meijer EJ, Boer JM, Vossen RHAM, Turk R, Maatman RGHJ, Davies KE, van Ommen GJB, van Deutekom JCT, den Dunnen JT. Generation and characterization of transgenic mice with the full-length human DMD gene. J Biol Chem 2007; 283:5899-907. [PMID: 18083704 DOI: 10.1074/jbc.m709410200] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We report the generation of mice with an intact and functional copy of the 2.3-megabase human dystrophin gene (hDMD), the largest functional stretch of human DNA thus far integrated into a mouse chromosome. Yeast spheroplasts containing an artificial chromosome with the full-length hDMD gene were fused with mouse embryonic stem cells and were subsequently injected into mouse blastocysts to produce transgenic hDMD mice. Human-specific PCR, Southern blotting, and fluorescent in situ hybridization techniques demonstrated the intactness and stable chromosomal integration of the hDMD gene on mouse chromosome 5. Expression of the transgene was confirmed by RT-PCR and Western blotting. The tissue-specific expression pattern of the different DMD transcripts was maintained. However, the human Dp427p and Dp427m transcripts were expressed at 2-fold higher levels and human Dp427c and Dp260 transcripts were expressed at 2- and 4-fold lower levels than their endogenous counterparts. Ultimate functional proof of the hDMD transgene was obtained by crossing of hDMD mice with dystrophin-deficient mdx mice and dystrophin and utrophin-deficient mdx x Utrn-/- mice. The hDMD transgene rescued the lethal dystrophic phenotype of the mdx x Utrn-/- mice. All signs of muscular dystrophy disappeared in the rescued mice, as demonstrated by histological staining of muscle sections and gene expression profiling experiments. Currently, hDMD mice are extensively used for preclinical testing of sequence-specific therapeutics for the treatment of Duchenne muscular dystrophy. In addition, the hDMD mouse can be used to study the influence of the genomic context on deletion and recombination frequencies, genome stability, and gene expression regulation.
Collapse
Affiliation(s)
- Peter A C 't Hoen
- Center for Human and Clinical Genetics, Leiden University Medical Center, Postal Zone S4-P, PO Box 9600, 2300 RC Leiden, The Netherlands.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Turk R, Juretić D, Geres D, Svetina A, Turk N, Flegar-Mestrić Z. Influence of oxidative stress and metabolic adaptation on PON1 activity and MDA level in transition dairy cows. Anim Reprod Sci 2007; 108:98-106. [PMID: 17850995 DOI: 10.1016/j.anireprosci.2007.07.012] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2007] [Revised: 07/16/2007] [Accepted: 07/23/2007] [Indexed: 11/21/2022]
Abstract
Serum PON1 is a HDL-associated enzyme that protects lipoproteins, both LDL and HDL, against oxidation and it is considered as an antioxidative/anti-inflammatory component of HDL. Dairy cows are highly susceptible to oxidative stress which commonly occurs in late pregnancy and early lactation. During the transition period, increased production of reactive oxygen species is associated to processes of metabolic adaptation to a low-energy balance. We investigated serum paraoxonase-1 (PON1) activity and malondialdehyde (MDA) concentration to assess the antioxidative/prooxidative status during pregnancy and the postpartum period. In order to evaluate metabolic homeostasis, common metabolic parameters (glucose, triglyceride, total cholesterol, HDL-C and albumin concentrations) were determined as well. A significantly lower PON1 activity was found in late pregnancy and early postpartum (P<0.05) compared to the first and the second trimester of pregnancy and the mid-lactation. MDA level was significantly higher (P<0.05) in the dry period compared to pregnant lactating and postpartum cows. Serum glucose concentration (P<0.001) was lower in the early and late puerperium indicating low-energy balance in the early lactation. Serum triglyceride and albumin concentrations were lower in late puerperium (P<0.001), while total cholesterol and HDL-C were lower during the dry period (P<0.05) as well as in early postpartum (P<0.001). Significant correlations of PON1 activity with glucose (P<0.05), albumin (P<0.05), total cholesterol (P<0.001) and HDL-C (P<0.001) were also found. The observed lower serum PON1 activity and higher MDA level in late pregnancy and early postpartum could indicate a prooxidants/antioxidants imbalance influenced by reproductive stress and metabolic adaptation in the transition period of dairy cows.
Collapse
Affiliation(s)
- R Turk
- Department of Pathophysiology, Faculty of Veterinary Medicine, University of Zagreb, 10000 Zagreb, Croatia.
| | | | | | | | | | | |
Collapse
|
26
|
Abstract
Objective assessment of stroke-patients' ability to control arm movements is vital for evidence-based therapy and progress monitoring. This study compares three different indices to quantify the quality of wrist movement during a task involving tracking a target on a screen. Each method is assessed in terms of agreement between assessors (Bland and Altman limits of agreement); repeatability of readings by the same assessor (reliability coefficient); and external validity on data collected from a sample of people with impaired upper limb function and an age matched unimpaired control group. The three indices were the root mean square difference between the wrist movement and the target signal, the cross correlation between these two signals, and an estimate of the signal-to-noise ratio in the wrist movement. External validity was investigated by calculating the correlation between each measure for wrist movement, and upper limb function assessed by the action research arm test. The results of the Bland and Altman limits of agreement show that all indices were similar in performance. The cross correlation had the highest reliability coefficient for the impaired group. In terms of external validity, the cross correlation and signal-to-noise indices showed the strongest association with functional performance and may thus be the more relevant for future clinical investigations.
Collapse
Affiliation(s)
- S V Notley
- Institute of Sound and Vibration Research, University of Southampton, Highfield, Southampton SO17 1BJ, UK.
| | | | | | | | | |
Collapse
|
27
|
’t Hoen P, van der Wees C, Aartsma-Rus A, Turk R, Goyenvalle A, Danos O, Garcia L, van Ommen G, van Deutekom J, den Dunnen J. T.P.1 03 Gene expression profiling to monitor therapeutic and adverse effects of antisense-induced exon skipping for Duchenne muscular dystrophy. Neuromuscul Disord 2006. [DOI: 10.1016/j.nmd.2006.05.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
28
|
Sterrenburg E, van der Wees CGC, White SJ, Turk R, de Menezes RX, van Ommen GJB, den Dunnen JT, 't Hoen PAC. Gene expression profiling highlights defective myogenesis in DMD patients and a possible role for bone morphogenetic protein 4. Neurobiol Dis 2006; 23:228-36. [PMID: 16679024 DOI: 10.1016/j.nbd.2006.03.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2005] [Revised: 02/14/2006] [Accepted: 03/17/2006] [Indexed: 11/19/2022] Open
Abstract
Duchenne Muscular Dystrophy (DMD) is characterized by progressive muscle weakness and wasting. Despite the sustained presence of satellite cells in their skeletal muscles, muscle regeneration in DMD patients seems inefficient and unable to compensate for the continuous muscle fiber loss. To find a molecular explanation, we compared the gene expression profiles of myoblasts from healthy individuals and DMD patients during activation and differentiation in culture. DMD cultures showed significant gene expression changes, even before dystrophin is expressed. We found a higher expression level of bone morphogenetic protein 4 (BMP4) in DMD cultures, which we demonstrate to inhibit differentiation into myotubes. In the later stages of differentiation, we observed a significant decline in expression of sarcomeric genes in the absence of dystrophin, probably contributing to sarcomeric instability. These results support the hypothesis that inefficient muscle regeneration is caused by impaired myoblast differentiation and impaired maintenance of the myotubes.
Collapse
Affiliation(s)
- Ellen Sterrenburg
- Center for Human and Clinical Genetics, Leiden University Medical Center, Einthovenweg 20, 2333 ZA Leiden, The Netherlands
| | | | | | | | | | | | | | | |
Collapse
|
29
|
't Hoen PAC, van der Wees CGC, Aartsma-Rus A, Turk R, Goyenvalle A, Danos O, Garcia L, van Ommen GJB, den Dunnen JT, van Deutekom JCT. Gene expression profiling to monitor therapeutic and adverse effects of antisense therapies for Duchenne muscular dystrophy. Pharmacogenomics 2006; 7:281-97. [PMID: 16610940 DOI: 10.2217/14622416.7.3.281] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
OBJECTIVES The objective of this study was to assess the utility of the gene expression profiling technique for the preclinical evaluation of drug efficacy and safety, taking a new therapeutic approach for Duchenne muscular dystrophy (DMD) as an example. METHODS Muscles from dystrophin-deficient (mdx) mice, a well-characterized animal model for DMD, were injected with antisense constructs that restore the open reading frame in the Dmd gene. Synthetic antisense oligonucleotides (AONs) complexed with different carriers to enhance cellular uptake and recombinant adeno-associated virus (rAAV)-expressed antisense sequences were evaluated. Muscular gene expression profiles were analyzed on oligonucleotide microarrays. RESULTS Polyethylenimine (PEI)-complexed AONs restored the reading frame slightly more effectively than uncomplexed, F127- or Optison-complexed AONs. However, PEI induced the expression of many immune genes, reflecting an aggravation of the inflammation present in untreated mdx mice. Expression profiles in Optison and F127-injected muscles were similar to those of saline treated muscles, implying that these carriers did not evoke adverse responses. Due to moderate levels of exon skipping, a significant shift toward wild-type expression levels was not detected. Injection with rAAV vectors resulted in much higher production of dystrophin and greatly improved the histological appearance of the muscle. Depending on the efficacy of the treatment, the expression of genes previously shown to be elevated in muscular dystrophies, partly or completely returned to wild-type expression levels. Reductions in inflammation and fibrosis were among the most prominent changes observed. CONCLUSION Expression profiling is a powerful tool for the evaluation of both desired and adverse effects of new pharmacological therapies. It is sensitive and detects changes that are not histologically visible. In addition, its ability to simultaneously monitor a large number of different biological processes not only reduces the number of different assays required in preclinical research and clinical trials, but may also assist in the early detection of potential side effects.
Collapse
Affiliation(s)
- Peter A C 't Hoen
- Leiden University Medical Center, Center for Human and Clinical Genetics, Room S-04-003, Postbus 9600, 2300 RC Leiden, The Netherlands.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
30
|
Vinciotti V, Liu X, Turk R, de Meijer EJ, 't Hoen PAC. Exploiting the full power of temporal gene expression profiling through a new statistical test: application to the analysis of muscular dystrophy data. BMC Bioinformatics 2006; 7:183. [PMID: 16584545 PMCID: PMC1450310 DOI: 10.1186/1471-2105-7-183] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2005] [Accepted: 04/03/2006] [Indexed: 11/21/2022] Open
Abstract
Background The identification of biologically interesting genes in a temporal expression profiling dataset is challenging and complicated by high levels of experimental noise. Most statistical methods used in the literature do not fully exploit the temporal ordering in the dataset and are not suited to the case where temporal profiles are measured for a number of different biological conditions. We present a statistical test that makes explicit use of the temporal order in the data by fitting polynomial functions to the temporal profile of each gene and for each biological condition. A Hotelling T2-statistic is derived to detect the genes for which the parameters of these polynomials are significantly different from each other. Results We validate the temporal Hotelling T2-test on muscular gene expression data from four mouse strains which were profiled at different ages: dystrophin-, beta-sarcoglycan and gamma-sarcoglycan deficient mice, and wild-type mice. The first three are animal models for different muscular dystrophies. Extensive biological validation shows that the method is capable of finding genes with temporal profiles significantly different across the four strains, as well as identifying potential biomarkers for each form of the disease. The added value of the temporal test compared to an identical test which does not make use of temporal ordering is demonstrated via a simulation study, and through confirmation of the expression profiles from selected genes by quantitative PCR experiments. The proposed method maximises the detection of the biologically interesting genes, whilst minimising false detections. Conclusion The temporal Hotelling T2-test is capable of finding relatively small and robust sets of genes that display different temporal profiles between the conditions of interest. The test is simple, it can be used on gene expression data generated from any experimental design and for any number of conditions, and it allows fast interpretation of the temporal behaviour of genes. The R code is available from V.V. The microarray data have been submitted to GEO under series GSE1574 and GSE3523.
Collapse
Affiliation(s)
- Veronica Vinciotti
- Department of Information Systems and Computing, Brunel University, Uxbridge UB8 3PH, UK
| | - Xiaohui Liu
- Department of Information Systems and Computing, Brunel University, Uxbridge UB8 3PH, UK
- Leiden Institute of Advanced Computer Science, Leiden University, PO Box 9512, 2300 RA Leiden, Netherlands
| | - Rolf Turk
- Center for Human and Clinical Genetics, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, Netherlands
- Present affiliation: Howard Hughes Medical Institute, Department of Physiology and Biophysics, Iowa City, Iowa, USA
| | - Emile J de Meijer
- Center for Human and Clinical Genetics, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, Netherlands
| | - Peter AC 't Hoen
- Center for Human and Clinical Genetics, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, Netherlands
| |
Collapse
|
31
|
Turk R, Sterrenburg E, van der Wees CGC, de Meijer EJ, de Menezes RX, Groh S, Campbell KP, Noguchi S, van Ommen GJB, den Dunnen JT, 't Hoen PAC. Common pathological mechanisms in mouse models for muscular dystrophies. FASEB J 2005; 20:127-9. [PMID: 16306063 DOI: 10.1096/fj.05-4678fje] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Duchenne/Becker and limb-girdle muscular dystrophies share clinical symptoms like muscle weakness and wasting but differ in clinical presentation and severity. To get a closer view on the differentiating molecular events responsible for the muscular dystrophies, we have carried out a comparative gene expression profiling of hindlimb muscles of the following mouse models: dystrophin-deficient (mdx, mdx(3cv)), sarcoglycan-deficient (Sgca null, Sgcb null, Sgcg null, Sgcd null), dysferlin-deficient (Dysf null, SJL(Dysf)), sarcospan-deficient (Sspn null), and wild-type (C57Bl/6, C57Bl/10) mice. The expression profiles clearly discriminated between severely affected (dystrophinopathies and sarcoglycanopathies) and mildly or nonaffected models (dysferlinopathies, sarcospan-deficiency, wild-type). Dystrophin-deficient and sarcoglycan-deficient profiles were remarkably similar, sharing inflammatory and structural remodeling processes. These processes were also ongoing in dysferlin-deficient animals, albeit at lower levels, in agreement with the later age of onset of this muscular dystrophy. The inflammatory proteins Spp1 and S100a9 were up-regulated in all models, including sarcospan-deficient mice, which points, for the first time, at a subtle phenotype for Sspn null mice. In conclusion, we identified biomarker genes for which expression correlates with the severity of the disease, which can be used for monitoring disease progression. This comparative study is an integrating step toward the development of an expression profiling-based diagnostic approach for muscular dystrophies in humans.
Collapse
Affiliation(s)
- R Turk
- Leiden University Medical Center, Center for Human and Clinical Genetics, Leiden, The Netherlands
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Turk R, Juretić D, Geres D, Turk N, Rekić B, Simeon-Rudolf V, Robić M, Svetina A. Serum paraoxonase activity in dairy cows during pregnancy. Res Vet Sci 2005; 79:15-8. [PMID: 15894019 DOI: 10.1016/j.rvsc.2004.09.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2004] [Revised: 09/22/2004] [Accepted: 09/22/2004] [Indexed: 11/17/2022]
Abstract
Preparturient dairy cows are at high risk of metabolic and reproductive disorders and oxidative stress is considered to be involved in these events. We investigated the serum paraoxonase activity in dairy cows during pregnancy and alterations in lipid and lipoprotein patterns in this period. The relation between paraoxonase activity and HDL-cholesterol concentration was also compared. The study was carried out on 76 pregnant lactating and 26 pregnant dry Holstein dairy cows. The serum paraoxonase activity was determined by the method of hydrolysing of paraoxon, while triglyceride, cholesterol and HDL-cholesterol concentrations were measured by the enzymatic kit methods. A significantly higher serum triglyceride concentration (P<0.001) was observed in dry cows compared to lactating cows. The total cholesterol and HDL-cholesterol concentrations were significantly lower (P<0.001) in dry cows than in lactating ones. In dry cows, paraoxonase activity was significantly lower than in those lactating (P<0.001). There was no significant difference in paraoxonase/HDL-cholesterol ratio between the investigated groups. It seems that the lower HDL concentration could be one of the causes of reduced paraoxonase activity considering the role of HDL as a carrier of most paraoxonase molecules in the blood. A decreased serum paraoxonase activity could diminish the effectiveness and total capacity of the whole antioxidative system during prepartum period in dairy cattle.
Collapse
Affiliation(s)
- R Turk
- Department of Pathophysiology, Faculty Veterinary of Medicine, University of Zagreb, P.O. Box 466, Zagreb 10002, Croatia.
| | | | | | | | | | | | | | | |
Collapse
|
33
|
Turk R, Sterrenburg E, de Meijer EJ, van Ommen GJB, den Dunnen JT, 't Hoen PAC. Muscle regeneration in dystrophin-deficient mdx mice studied by gene expression profiling. BMC Genomics 2005; 6:98. [PMID: 16011810 PMCID: PMC1190170 DOI: 10.1186/1471-2164-6-98] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2005] [Accepted: 07/13/2005] [Indexed: 01/19/2023] Open
Abstract
Background Duchenne muscular dystrophy (DMD), caused by mutations in the dystrophin gene, is lethal. In contrast, dystrophin-deficient mdx mice recover due to effective regeneration of affected muscle tissue. To characterize the molecular processes associated with regeneration, we compared gene expression levels in hindlimb muscle tissue of mdx and control mice at 9 timepoints, ranging from 1–20 weeks of age. Results Out of 7776 genes, 1735 were differentially expressed between mdx and control muscle at at least one timepoint (p < 0.05 after Bonferroni correction). We found that genes coding for components of the dystrophin-associated glycoprotein complex are generally downregulated in the mdx mouse. Based on functional characteristics such as membrane localization, signal transduction, and transcriptional activation, 166 differentially expressed genes with possible functions in regeneration were analyzed in more detail. The majority of these genes peak at the age of 8 weeks, where the regeneration activity is maximal. The following pathways are activated, as shown by upregulation of multiple members per signalling pathway: the Notch-Delta pathway that plays a role in the activation of satellite cells, and the Bmp15 and Neuregulin 3 signalling pathways that may regulate proliferation and differentiation of satellite cells. In DMD patients, only few of the identified regeneration-associated genes were found activated, indicating less efficient regeneration processes in humans. Conclusion Based on the observed expression profiles, we describe a model for muscle regeneration in mdx mice, which may provide new leads for development of DMD therapies based on the improvement of muscle regeneration efficacy.
Collapse
Affiliation(s)
- R Turk
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333 AL Leiden, Nederland
- Department of Physiology and Biophysics, Howard Hughes Medical Institute, University of Iowa, 400 Eckstein Medical Research Building, Iowa City, IA52240-1101, U.S.A
| | - E Sterrenburg
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333 AL Leiden, Nederland
| | - EJ de Meijer
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333 AL Leiden, Nederland
| | - G-JB van Ommen
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333 AL Leiden, Nederland
| | - JT den Dunnen
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333 AL Leiden, Nederland
- Leiden Genome Technology Center, Leiden University Medical Center, Wassenaarseweg 72, 2333 AL Leiden, Nederland
| | - PAC 't Hoen
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333 AL Leiden, Nederland
| |
Collapse
|
34
|
Sterrenburg E, Turk R, 't Hoen PAC, van Deutekom JCT, Boer JM, van Ommen GJB, den Dunnen JT. Large-scale gene expression analysis of human skeletal myoblast differentiation. Neuromuscul Disord 2004; 14:507-18. [PMID: 15336692 DOI: 10.1016/j.nmd.2004.03.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2004] [Revised: 03/16/2004] [Accepted: 03/24/2004] [Indexed: 10/26/2022]
Abstract
To study pathways involved in human skeletal myogenesis, we profiled gene expression in human primary myoblast cells derived from three individuals using both oligonucleotide and cDNA microarrays. Following stringent statistical testing (false-positive rate 0.4%), we identified 146 genes differentially expressed over time. Interestingly, 86 of these genes have not been reported to be involved in myogenesis in mouse cell lines. This demonstrates the additional value of human primary cell cultures in the study of muscle differentiation. Many of the identified genes play a role in muscle regeneration, indicating the close relationship of this process with muscle development. In addition, we found overlap with expression profiling studies in muscle from Duchenne muscular dystrophy patients, confirming ongoing muscle regeneration in Duchenne muscular dystrophy. Further study of these genes can bring new insights into the process of muscle differentiation, and they are candidate genes for neuromuscular disorders with an as yet unidentified cause.
Collapse
Affiliation(s)
- Ellen Sterrenburg
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333 AL Leiden, The Netherlands
| | | | | | | | | | | | | |
Collapse
|
35
|
Turk R, 't Hoen PAC, Sterrenburg E, de Menezes RX, de Meijer EJ, Boer JM, van Ommen GJB, den Dunnen JT. Gene expression variation between mouse inbred strains. BMC Genomics 2004; 5:57. [PMID: 15317656 PMCID: PMC516769 DOI: 10.1186/1471-2164-5-57] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2004] [Accepted: 08/18/2004] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In this study, we investigated the effect of genetic background on expression profiles. We analysed the transcriptome of mouse hindlimb muscle of five frequently used mouse inbred strains using spotted oligonucleotide microarrays. RESULTS Through ANOVA analysis with a false discovery rate of 10%, we show that 1.4% of the analysed genes is significantly differentially expressed between these mouse strains. Differential expression of several of these genes has been confirmed by quantitative RT-PCR. The number of genes affected by genetic background is approximately ten-fold lower than the number of differentially expressed genes caused by a dystrophic genetic defect. CONCLUSIONS We conclude that evaluation of the effect of background on gene expression profiles in the tissue under study is an effective and sensible approach when comparing expression patterns in animal models with heterogeneous genetic backgrounds. Genes affected by the genetic background can be excluded in subsequent analyses of the disease-related changes in expression profiles. This is often a more effective strategy than backcrossing and inbreeding to obtain isogenic backgrounds.
Collapse
Affiliation(s)
- Rolf Turk
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333AL Leiden, Nederland
| | - Peter AC 't Hoen
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333AL Leiden, Nederland
| | - Ellen Sterrenburg
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333AL Leiden, Nederland
| | - Renée X de Menezes
- Department of Medical Statistics, Leiden University Medical Center, Wassenaarseweg 72, 2333AL Leiden, Nederland
| | - Emile J de Meijer
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333AL Leiden, Nederland
| | - Judith M Boer
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333AL Leiden, Nederland
| | - Gert-Jan B van Ommen
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333AL Leiden, Nederland
| | - Johan T den Dunnen
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333AL Leiden, Nederland
| |
Collapse
|
36
|
't Hoen PAC, Turk R, Boer JM, Sterrenburg E, de Menezes RX, van Ommen GJB, den Dunnen JT. Intensity-based analysis of two-colour microarrays enables efficient and flexible hybridization designs. Nucleic Acids Res 2004; 32:e41. [PMID: 14982960 PMCID: PMC390313 DOI: 10.1093/nar/gnh038] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In two-colour microarrays, the ratio of signal intensities of two co-hybridized samples is used as a relative measure of gene expression. Ratio-based analysis becomes complicated and inefficient in multi-class comparisons. We therefore investigated the validity of an intensity-based analysis procedure. To this end, two different cRNA targets were hybridized together, separately, with a common reference and in a self-self fashion on spotted 65mer oligonucleotide microarrays. We found that the signal intensity of the cRNA targets was not influenced by the presence of a target labelled in the opposite colour. This indicates that targets do not compete for binding sites on the array, which is essential for intensity-based analysis. It is demonstrated that, for good-quality arrays, the correlation of signal intensity measurements between the different hybridization designs is high (R > 0.9). Furthermore, ratio calculations from ratio- and intensity-based analyses correlated well (R > 0.8). Based on these results, we advocate the use of separate intensities rather than ratios in the analysis of two-colour long-oligonucleotide microarrays. Intensity-based analysis makes microarray experiments more efficient and more flexible: It allows for direct comparisons between all hybridized samples, while circumventing the need for a reference sample that occupies half of the hybridization capacity.
Collapse
Affiliation(s)
- Peter A C 't Hoen
- Center for Human and Clinical Genetics, Leiden University Medical Center, The Netherlands.
| | | | | | | | | | | | | |
Collapse
|
37
|
Turk R, Juretic D, Geres D, Turk N, Rekic B, Simeon-Rudolf V, Svetina A. Serum paraoxonase activity and lipid parameters in the early postpartum period of dairy cows. Res Vet Sci 2004; 76:57-61. [PMID: 14659730 DOI: 10.1016/j.rvsc.2003.08.001] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The effect of early lactation on serum paraoxonase activity was studied on 21 postpartum dairy cows and 19 non-pregnant late lactating dairy cows. A significant decrease of the paraoxonase activity was found in the early postpartum period compared to the late non-pregnant lactation. The serum triglyceride, cholesterol and LDL-cholesterol concentration were also markedly reduced during the postpartum period, while the serum HDL-cholesterol concentration showed no significant change. The results indicate that lower serum paraoxonase activity is associated with lipid metabolic disorders in the early postpartum period. A decreased serum paraoxonase activity may lead to the reduction of the antioxidative capacity and antioxidative protection during the early postpartum period.
Collapse
Affiliation(s)
- R Turk
- Department of Pathophysiology, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, Zagreb, Croatia.
| | | | | | | | | | | | | |
Collapse
|
38
|
Abstract
Comparisons of expression levels across different cDNA microarray experiments are easier when a common reference is co-hybridized to every microarray. Often this reference consists of one experimental control sample, a pool of cell lines or a mix of all samples to be analyzed. We have developed an alternative common reference consisting of a mix of the products that are spotted on the array. Pooling part of the cDNA PCR products before they are printed and their subsequent amplification towards either sense or antisense cRNA provides an excellent common reference. Our results show that this reference yields a reproducible hybridization signal in 99.5% of the cDNA probes spotted on the array. Accordingly, a ratio can be calculated for every spot, and expression levels across different hybridizations can be compared. In dye-swap experiments this reference shows no significant ratio differences, with 95% of the spots within an interval of +/-0.2-fold change. The described method can be used in hybridizations with both amplified and non-amplified targets, is time saving and provides a constant batch of common reference that lasts for thousands of hybridizations.
Collapse
Affiliation(s)
- Ellen Sterrenburg
- Center for Human and Clinical Genetics, Leiden University Medical Center, Wassenaarseweg 72, 2333AL Leiden, Nederland
| | | | | | | | | |
Collapse
|
39
|
|
40
|
Klepac T, Busljeta I, Macan J, Plavec D, Turk R. Household chemicals--common cause of unintentional poisoning. Arh Hig Rada Toksikol 2000; 51:401-7. [PMID: 11276967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
Of 4736 poisoning incidents registered in the Poison Control Centre in Zagreb from 1985 to 1999, household chemicals caused 23%. In the group of cleaning products, 11% of poisoning incidents were caused by corrosives, 9% by liquid detergents and 4% by hypochlorite. Organic solvents caused 18% of household chemical poisonings; among them gasoline and thinners were the most frequent. Cosmetics were responsible for 7% of poisoning incidents; the most frequent were hair shampoo, hydrogen peroxide, and acetone. In the group of other chemicals, the most common were ingestion of thermometer mercury and of silica gel, while poisonings with highly toxic antifreeze, mothballs, or liquid fertilisers were rare. Ingestion or other exposure to household chemicals often caused excessive concern and therapeutic measures. It is therefore advisable to consult a Poison Control Centre in order to get proper information about the composition of a chemical and toxicity of a product.
Collapse
Affiliation(s)
- T Klepac
- Institute for Medical Research and Occupational Health, Zagreb, Croatia.
| | | | | | | | | |
Collapse
|
41
|
Macan J, Turk R, Plavec D, Bosan-Kilibarda I. The changing pattern of poisoning with psychoactive drugs in Croatia. Arh Hig Rada Toksikol 2000; 51:381-7. [PMID: 11276965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
The aim of this study was to analyse the frequency of poisoning with psychoactive drugs (benzodiazepines, antidepressants and neuroleptics) over the last 15 years in Croatia. The analysis was based on poisoning incidents reported over the phone (hot line) to the Zagreb Poison Control Center and included two periods: 1985-1991 (period I) and 1992-1999 (period II). The data were analysed separately for children and adults. Each phone call was counted as one poisoning incident. Child poisoning with neuroleptics was significantly higher in period II than in period I and so was the adult poisoning with antidepressants, amytriptyline, and combined psychoactive drugs. The frequency of total psychoactive drug poisoning was significantly higher in adults than in children in both periods. From 1992, the frequency of adult poisoning with antidepressants considerably increased as one of the many consequences of war-related stress. The results indicate a need for careful psychiatric evaluation and more critical use of antidepressants in affected individuals.
Collapse
Affiliation(s)
- J Macan
- Institute for Medical Research and Occupational Health, Zagreb.
| | | | | | | |
Collapse
|
42
|
Bogadi-Sare A, Zavalic M, Trosić I, Turk R, Kontosić I, Jelcić I. Study of some immunological parameters in workers occupationally exposed to benzene. Int Arch Occup Environ Health 2000; 73:397-400. [PMID: 11007343 DOI: 10.1007/s004200000126] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE The aim of the study was to investigate the immunotoxicity of benzene exposure, to establish the correlation between the exposure biomarkers and some immunological parameters, and to assess the possible influence of confounding factors on the results of immunological assay applicable in routine medical surveillance of benzene-exposed workers. METHODS Forty-nine female workers in the shoemaking industry who were exposed to solvent mixtures and 27 nonexposed controls were examined. Workers were exposed to benzene concentrations of up to 15 ppm, and to toluene of up to 50 ppm. RESULTS Significant differences in the levels of benzene and toluene in blood and phenols in post-shift urine between the exposed and the control group confirmed solvent exposure. The number of B-lymphocytes (P = 0.01) was lower in the shoe workers than in the controls. Significant correlation was found between the level of immunoglobulin G and benzene in the work atmosphere, while confounding factors had no impact on immunological values. CONCLUSION According to these results, exposure to benzene concentration lower than 15 ppm can induce depression of the circulating B-lymphocyte level and therefore this fact could be used to develop a promising method for health surveillance of benzene-exposed workers. However, considerably more effort in the research on benzene immunotoxicity, especially in the search for suitable health surveillance methods, is still required.
Collapse
|
43
|
Macan J, Vucemilović A, Turk R, Medugorac B, Milković-Kraus S, Gomzi M, Poljak I. Occupational histamine poisoning by fish flour: a case report. Occup Med (Lond) 2000; 50:22-4. [PMID: 10795387 DOI: 10.1093/occmed/50.1.22] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Histamine poisoning due to inhalation and skin contact with fish products is rarely described in the literature. This study presents a case of occupational histamine poisoning by spoiled fish flour via inhalation, skin and eye contact. Shipments of fish flour transported in black or blue bags, depending on the source, were handled by 20 harbour workers. Ten workers handling blue bags developed allergy-like skin, eye, gastrointestinal, respiratory and cardiac symptoms within 30 min. Workers handling black bags were symptom-free, except for minimal eye irritation. After consultation with the Poison Control Centre histamine poisoning was suspected. The histamine content, as determined by thin-layer chromatography, was 10-fold higher in samples from the blue than from the black bags (510 mg/100 g flour compared with 50 mg/100 g flour, respectively). Part of the shipment was labelled as hazardous for human health with permission for further usage only under specific personal protective measures. It is suggested that the highest permissible levels of histamine in fish flour and similar products should be set and legally adopted.
Collapse
Affiliation(s)
- J Macan
- Institute for Medical Research and Occupational Health, Zagreb, Croatia.
| | | | | | | | | | | | | |
Collapse
|
44
|
Rothbard AB, Kuno E, Schinnar AP, Hadley TR, Turk R. Service utilization and cost of community care for discharged state hospital patients: a 3-year follow-up study. Am J Psychiatry 1999; 156:920-7. [PMID: 10360133 DOI: 10.1176/ajp.156.6.920] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE This study examined the mental health service utilization and costs of 321 discharged state hospital patients during a 3-year follow-up period compared with costs if the patients had remained in the hospital. METHOD The study subjects were long-stay patients discharged from Philadelphia State Hospital after 1988. A longitudinal integrated database on all mental health and medical services reimbursed by Medicaid and Medicare as well as state- and county-funded services was used to construct service utilization and unit cost measures. RESULTS During the 3-year period after discharge, 20%-30% of the patients required rehospitalization an average of 76-91 days per year. The percentage of rehospitalized patients decreased over time, but the number of hospital days increased. All of the discharged patients received case management services, and a majority also received outpatient mental health care (66%-70%) and residential services (75%) throughout the follow-up period. The total treatment cost per person was approximately $60,000 a year after controlling for inflation, with costs rising slightly over the 3-year period. The estimated cost of state hospitalization, with the use of 1992 estimates, would have been $130,000 per year if the patients had remained institutionalized. CONCLUSIONS This analysis suggests that most former long-stay patients are able to live in residential settings while receiving community outpatient treatment and intensive case management services at a reduced cost. There is no indication of cost shifting from the psychiatric to the health care sector; however, some cost shifting from the state mental health agency to the Medicaid program has occurred, since most psychiatric hospital care now takes place in community hospitals.
Collapse
Affiliation(s)
- A B Rothbard
- Center for Mental Health Policy and Services Research, Department of Psychiatry, Medical Center, Philadelphia, PA, USA.
| | | | | | | | | |
Collapse
|
45
|
Molina MC, Stocker-Wörgötter E, Turk R, Bajon C, Vicente C. Secreted, glycosylated arginase from Xanthoria parietina thallus induces loss of cytoplasmic material from Xanthoria photobionts. Cell Adhes Commun 1999; 6:481-90. [PMID: 9929741 DOI: 10.3109/15419069809010796] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A secreted, glycosylated arginase (lectin) from Xanthoria parietina thallus binds to the cell wall of Xanthoria photobiont when cell wall urease has previously been induced. The uptake of this secreted arginase by the algal cell without cell wall ligand for the lectin increases the concentration of algal putrescine and it is followed by an apparent loss of chlorophyll. However, neither chlorophyllase activity has been detected nor chlorophyllide concentration increases after loading the cells with putrescine. The loss of chlorophyll can be explained by the loss of algal protoplast resulting from the action of a putrescine-activated glucanase and the split of their membrane in an hypoosmotic medium. The loss and split of protoplasts have been shown by light and transmission electron microscopy.
Collapse
Affiliation(s)
- M C Molina
- Department of Plant Physiology, Faculty of Biology, Complutense University, Madrid, Spain
| | | | | | | | | |
Collapse
|
46
|
Restek-Samarzija N, Blanusa M, Pizent A, Samarzija M, Turk R, Corović N, Jurasović J. Meso-2,3-dimercaptosuccinic acid in the treatment of occupationally exposed lead workers. Arh Hig Rada Toksikol 1998; 49:137-45. [PMID: 9919719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
The aim of this study was to evaluate the efficacy of meso-2,3-dimercaptosuccinic acid (DMSA) treatment in workers with increased lead absorption and no overt symptoms of lead poisoning. Seven occupationally lead exposed male workers with blood lead concentrations (PbB) exceeding 50 micrograms/100 ml and a positive calcium disodium ethylenediaminetetraacetate (EDTA) lead mobilization test were treated with DMSA for 19 days. Individual doses were 700 mg DMSA, three times a day from day one to five, and twice a day from day six to 19. The treatment intensified urinary lead excretion, most rapidly during the first five days. The increased elimination was followed by a decline of mean PbB to 15% of the pretreatment values. However, 15 days after the treatment, the PbB concentrations rebounded, yet kept below the baseline values and did not exceed 40 micrograms/100 ml. After repeated EDTA lead mobilization test, urine lead was 23-68% of that before DMSA treatment. It can be concluded that DMSA can effectively reduce chelatable lead in occupationally exposed workers.
Collapse
|
47
|
Zavalić M, Mandić Z, Turk R, Bogadi-Sare A, Plavec D, Skender LJ. Qualitative color vision impairment in toluene-exposed workers. Int Arch Occup Environ Health 1998; 71:194-200. [PMID: 9591161 DOI: 10.1007/s004200050270] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE The aim of this study was to evaluate whether toluene, like many other organic solvents and solvent mixtures, could impair color vision. SUBJECTS AND METHODS We investigated color vision impairment in three groups of workers, two groups occupationally exposed to toluene and a nonexposed group. The first exposed group, group E1, comprised 41 workers (median value of toluene in air 35.00 ppm, range 11.3-49.3 ppm) and the second exposed group, group E2, comprised 32 subjects (median value of toluene in air 156.00 ppm, range 66.0-250.0 ppm). The nonexposed group, group NE, comprised 83 subjects. Color vision was evaluated by the Lanthony D-15 desaturated test according to Verriest's classification: type I, loss in the red-green range; type II, loss in the blue-yellow and red-green ranges, and type III, loss in the blue-yellow range. Subjects were classified as dyschromates if specific acquired loss was determined in at least one eye. In both exposed groups, exposure was evaluated by measurement of the concentration of toluene in the ambient air and in the blood. In group E2, level of hippuric acid and orthocresol in urine after the work shift were also determined. The Mann-Whitney U-test, t-test, chi 2-test, and Spearman's rank correlation and multiple regression analysis were used for statistical analysis. RESULTS Type III dyschromatopsia was detected in all groups examined: 26.6% of the workers in group NE, 31.7% of those in group E1, and 50% of those in group E2. As many as 15.6% of the workers in group E2, 4.8% of those in group E1, and only 1.2% of those in group NE had type II dyschromatopsia. A statistically significant difference in the prevalence of total dyschromatopsia (type III + type II) was established among the three examined groups together (chi 2 = 14.13; df = 2; P < 0.01), between group E2 and group E1 (chi 2 = 4.96; P < 0.05), and between group E2 and group NE (chi 2 = 12.50; P < 0.005), whereas no significant difference was found between groups E1 and NE. Type III dyschromatopsia was significantly correlated with age in group NE (P < 0.01) and in group E1 (P < 0.005). In group E2, both type II (P < 0.05) and type III dyschromatopsia correlated with toluene in ambient air and with the duration of exposure to toluene (both P < 0.005). In group E2, total dyschromatopsia correlated significantly with toluene in ambient air and in blood (both P < 0.05) as well as with hippuric acid in urine after the work shift (P < 0.001). CONCLUSION This study suggests that toluene can impair color vision.
Collapse
Affiliation(s)
- M Zavalić
- Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | | | | | | | | | | |
Collapse
|
48
|
Zavalic M, Mandic Z, Turk R, Bogadi-Sare A, Plavec D, Gomzi M, Skender LJ. Assessment of colour vision impairment in male workers exposed to toluene generally above occupational exposure limits. Occup Med (Lond) 1998; 48:175-80. [PMID: 9659727 DOI: 10.1093/occmed/48.3.175] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We investigated colour vision impairment in 45 male workers occupationally exposed to toluene (mean value of toluene concentration in ambient air = 119.96 ppm) and in 53 controls. Colour vision was evaluated by Lanthony-D-15 desaturated test and expressed as Age and Alcohol Intake Adjusted Colour Confusion Score (AACDS) or types of dyschromatopsia. Exposure was evaluated by measurement of toluene concentration in ambient air and blood, and hippuric acid and orthocresol determined in urine after the workshift. A statistically significant higher AACDS value was established in the exposed subjects compared to the controls (p < 0.0001). There was no significant difference between AACDS values on Wednesday morning compared to Monday morning. In the exposed group AACDS significantly correlated with the concentration of toluene in ambient air, concentration of toluene in blood and the concentration of hippuric acid in urine after the workshift (all p < 0.0001). Dyschromatopsias were detected in both groups, although no significant difference between groups was established. In the exposed group concentration of toluene in ambient air, alcohol intake and age explained 35.1%, concentration of toluene in blood, age and alcohol intake explained 19.9%, and concentration of hippuric acid in urine and age explained 19.2% of the variation in type III dyschromatopsia. Concentration of toluene in ambient air and age explained 28.3% of the variation in total dyschromatopsia, and concentration of hippuric acid and age explained 13.8%. In the control group, age and alcohol intake explained 19.6% of the variation in type III dyschromatopsia. In exposed workers a significant difference was found in the AACDS value compared to controls. However, no significant difference was found in the prevalence of colour vision loss in the yellow-blue and/or red-green axis. Based on the results of this study the authors conclude that the effect of toluene on colour vision can be chronic and that the possible reparation period in colour vision impairment is longer than 64 hours.
Collapse
Affiliation(s)
- M Zavalic
- Institute for Medical Research and Occupational Health, Clinical Hospital Sestre Milosrdnice Zagreb, Croatia
| | | | | | | | | | | | | |
Collapse
|
49
|
Abstract
Color vision was examined by the Lanthony-D-15 desaturated test in two groups of workers occupationally exposed to toluene and in a control group. Biological parameters of toluene exposure were analyzed: toluene in air and in venous blood, orthocresol, and hippuric acid in urine after workshift. The first exposed group, Group E1, comprised 41 workers (toluene exposure ranged from 11.30 to 49.30 ppm), and the second exposed group, Group E2, comprised 32 workers (toluene exposure ranged from 66.00 to 250.00 ppm). The nonexposed group, Group NE, comprised 83 subjects. Each group was divided into two subgroups; alcohol consumers and nonconsumers. Color vision loss was expressed as a color confusion index (CCI) and as age and alcohol intake-adjusted color confusion index (AACCI). Significantly higher values of CCI and AACCI (both P < 0.0001) in Group E2 in comparison to Group NE, and significantly higher CCI (P < 0.0001) and AACCI (P < 0.05) values in Group E2 in comparison to Group E1 were established. The significant difference in CCI value between alcohol consumers and nonconsumers was established only in Group NE (P < 0.05). In Group NE significant correlation was found between CCI value as a dependent and age and alcohol intake as independent cofactors (R2 = 0.45; P = 0.0000). In Group E2 significant correlation was established between CCI as a dependent factor and age, toluene in air, and alcohol intake (R2 = 0.72; P = 0.0001), or between CCI as dependent and age, toluene in blood and alcohol intake as independent cofactors (R2 = 0.68; P = 0.0002). In Group E1 significant correlation was established only between CCI and age (P <0.005). In Group E2, AACCI value significantly correlated with toluene in air (P < 0.0001), toluene in blood (r < 0.0005), orthocresol (P < 0.005) and hippuric acid (P < 0.005) in urine after workshift. There were no differences between smokers and nonsmokers in CCI values in the examined groups. Results of this study indicate that toluene in exposed workers can impair color vision. The role of alcohol intake and age influence on color vision loss cannot be ignored in such workers.
Collapse
Affiliation(s)
- M Zavalić
- Institute for Medical Research and Occupational Health, Zagreb, Croatia
| | | | | | | | | |
Collapse
|
50
|
Restek-Samarzija N, Momcilović B, Turk R, Samarzija M. Contribution of lead poisoning to renal impairment. Arh Hig Rada Toksikol 1997; 48:355-64. [PMID: 9721454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The late effects of lead on kidney function and blood pressure were studied in 38 persons occupationally poisoned in the past and in 23 workers exposed to lead. Parameters evaluated in all subjects were: creatinine clearance, hippuran renal flow, blood lead, erythrocyte protoporphyrin, aminolevulinic acid dehydratase, and blood pressure. Out of 11 combined variables, four significant factors were identified by factor analysis. The results showed the presence of the delayed adverse effect of previous occupational lead poisoning on kidney function and blood pressure. This phenomenon is a complex interplay of lead poisoning in the past, overall duration of lead exposure, and age as a major confounding variable related to aging process of the kidneys.
Collapse
|