1
|
Lopatto D, Rosenwald AG, Burgess RC, Silver Key C, Van Stry M, Wawersik M, DiAngelo JR, Hark AT, Skerritt M, Allen AK, Alvarez C, Anderson S, Arrigo C, Arsham A, Barnard D, Bedard JEJ, Bose I, Braverman JM, Burg MG, Croonquist P, Du C, Dubowsky S, Eisler H, Escobar MA, Foulk M, Giarla T, Glaser RL, Goodman AL, Gosser Y, Haberman A, Hauser C, Hays S, Howell CE, Jemc J, Jones CJ, Kadlec L, Kagey JD, Keller KL, Kennell J, Kleinschmit AJ, Kleinschmit M, Kokan NP, Kopp OR, Laakso MM, Leatherman J, Long LJ, Manier M, Martinez-Cruzado JC, Matos LF, McClellan AJ, McNeil G, Merkhofer E, Mingo V, Mistry H, Mitchell E, Mortimer NT, Myka JL, Nagengast A, Overvoorde P, Paetkau D, Paliulis L, Parrish S, Toering Peters S, Preuss ML, Price JV, Pullen NA, Reinke C, Revie D, Robic S, Roecklein-Canfield JA, Rubin MR, Sadikot T, Sanford JS, Santisteban M, Saville K, Schroeder S, Shaffer CD, Sharif KA, Sklensky DE, Small C, Smith S, Spokony R, Sreenivasan A, Stamm J, Sterne-Marr R, Teeter KC, Thackeray J, Thompson JS, Velazquez-Ulloa N, Wolfe C, Youngblom J, Yowler B, Zhou L, Brennan J, Buhler J, Leung W, Elgin SCR, Reed LK. Student Attitudes Contribute to the Effectiveness of a Genomics CURE. J Microbiol Biol Educ 2022; 23:e00208-21. [PMID: 36061313 PMCID: PMC9429879 DOI: 10.1128/jmbe.00208-21] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 03/28/2022] [Indexed: 06/15/2023]
Abstract
The Genomics Education Partnership (GEP) engages students in a course-based undergraduate research experience (CURE). To better understand the student attributes that support success in this CURE, we asked students about their attitudes using previously published scales that measure epistemic beliefs about work and science, interest in science, and grit. We found, in general, that the attitudes students bring with them into the classroom contribute to two outcome measures, namely, learning as assessed by a pre- and postquiz and perceived self-reported benefits. While the GEP CURE produces positive outcomes overall, the students with more positive attitudes toward science, particularly with respect to epistemic beliefs, showed greater gains. The findings indicate the importance of a student's epistemic beliefs to achieving positive learning outcomes.
Collapse
Affiliation(s)
- David Lopatto
- Center for Teaching, Learning and Assessment, Grinnell College, Grinnell, Iowa, USA
| | | | - Rebecca C. Burgess
- Department of Biological Sciences, Stevenson University, Owings Mills, Maryland, USA
| | - Catherine Silver Key
- Department of Biological and Biomedical Sciences, North Carolina Central University, Durham, North Carolina, USA
| | | | - Matthew Wawersik
- Department of Biology, College of William and Mary, Williamsburg, Virginia, USA
| | | | - Amy T. Hark
- Department of Biology, Muhlenberg College, Allentown, Pennsylvania, USA
| | - Matthew Skerritt
- Department of Science, SUNY Corning Community College, Corning, New York, USA
| | - Anna K. Allen
- Department of Biology, Howard University, Washington, DC, USA
| | - Consuelo Alvarez
- Department of Biology, Longwood University, Farmville, Virginia, USA
| | - Sara Anderson
- Department of Biosciences, Minnesota State University Moorhead, Moorhead, Minnesota, USA
| | - Cindy Arrigo
- Department of Biology, New Jersey City University, Jersey City, New Jersey, USA
| | - Andrew Arsham
- Department of Biology, Bemidji State University, Bemidji, Minnesota, USA
| | - Daron Barnard
- Department of Biology, Worcester State University, Worcester, Massachusetts, USA
| | - James E. J. Bedard
- Department of Biology, University of the Fraser Valley, Abbotsford, British Columbia, Canada
| | - Indrani Bose
- Department of Biology, Western Carolina University, Cullowhee, North Carolina, USA
| | - John M. Braverman
- Department of Biology, Saint Joseph’s University, Philadelphia, Pennsylvania, USA
| | - Martin G. Burg
- Department of Biomedical Sciences, Grand Valley State University, Allendale, Michigan, USA
- Department of Cell & Molecular Biology, Grand Valley State University, Allendale, Michigan, USA
| | - Paula Croonquist
- Department of Biology, Anoka-Ramsey Community College, Coon Rapids, Minnesota, USA
| | - Chunguang Du
- Department of Biology, Montclair State University, Montclair, New Jersey, USA
| | - Sondra Dubowsky
- Department of Biology, McLennan Community College, Waco, Texas, USA
| | - Heather Eisler
- Department of Biology, University of the Cumberlands, Williamsburg, Kentucky, USA
| | - Matthew A. Escobar
- Department of Biological Sciences, California State University San Marcos, San Marcos, California, USA
| | - Michael Foulk
- Department of Biology, Mercyhurst University, Erie, Pennsylvania, USA
| | - Thomas Giarla
- Department of Biology, Siena College, Loudonville, New York, USA
| | - Rivka L. Glaser
- Department of Biological Sciences, Stevenson University, Owings Mills, Maryland, USA
| | - Anya L. Goodman
- Department of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, California, USA
| | - Yuying Gosser
- Student Research and Scholarship, City College CUNY, New York, New York, USA
| | - Adam Haberman
- Department of Biology, University of San Diego, San Diego, California, USA
| | - Charles Hauser
- Department of Biology, St. Edward’s University, Austin, Texas, USA
| | - Shan Hays
- Department of Biology, Western Colorado University, Gunnison, Colorado, USA
| | - Carina E. Howell
- Department of Biological Sciences, Lock Haven University, Lock Haven, Pennsylvania, USA
| | - Jennifer Jemc
- Department of Biology, Loyola University Chicago, Chicago, Illinois, USA
| | - Christopher J. Jones
- Department of Biological Sciences, Moravian University, Bethlehem, Pennsylvania, USA
| | - Lisa Kadlec
- Department of Biology, Wilkes University, Wilkes-Barre, Pennsylvania, USA
| | - Jacob D. Kagey
- Department of Biology, University of Detroit Mercy, Detroit, Michigan, USA
| | | | - Jennifer Kennell
- Department of Biology, Vassar College, Poughkeepsie, New York, USA
| | | | - Melissa Kleinschmit
- Department of Liberal Arts, Science, and Business, Northeast Iowa Community College, Peosta, Iowa, USA
| | - Nighat P. Kokan
- Department of Natural Sciences, Cardinal Stritch University, Milwaukee, Wisconsin, USA
| | - Olga Ruiz Kopp
- Department of Biology, Utah Valley University, Orem, Utah, USA
| | - Meg M. Laakso
- Department of Biology, Eastern University, St. Davids, Pennsylvania, USA
| | - Judith Leatherman
- Department of Biological Sciences, University of Northern Colorado, Greeley, Colorado, USA
| | - Lindsey J. Long
- Department of Biology, Oklahoma Christian University, Oklahoma City, Oklahoma, USA
| | - Mollie Manier
- Department of Biological Sciences, George Washington University, Washington, DC, USA
| | | | - Luis F. Matos
- Department of Biology, Eastern Washington University, Cheney, Washington, USA
| | - Amie Jo McClellan
- Science and Mathematics, Bennington College, Bennington, Vermont, USA
| | - Gerard McNeil
- Department of Biology, York College/CUNY, Jamaica, New York, USA
| | - Evan Merkhofer
- Department of Natural Sciences, Mount Saint Mary College, Newburgh, New York, USA
| | - Vida Mingo
- Department of Biology, Columbia College, Columbia, South Carolina, USA
| | - Hemlata Mistry
- Department of Biology, Widener University, Chester, Pennsylvania, USA
- Department of Biochemistry, Widener University, Chester, Pennsylvania, USA
| | | | - Nathan T. Mortimer
- Department of Biological Sciences, Illinois State University, Normal, Illinois, USA
| | - Jennifer Leigh Myka
- Department of Biology, Gateway Community and Technical College, Covington, Kentucky, USA
| | - Alexis Nagengast
- Department of Biochemistry, Widener University, Chester, Pennsylvania, USA
- Department of Chemistry, Widener University, Chester, Pennsylvania, USA
| | - Paul Overvoorde
- Department of Biology, Macalester College, St. Paul, Minnesota, USA
| | - Don Paetkau
- Department of Biology, Saint Mary’s College, Notre Dame, Indiana, USA
| | - Leocadia Paliulis
- Department of Biology, Bucknell University, Lewisburg, Pennsylvania, USA
| | - Susan Parrish
- Department of Biology, McDaniel College, Westminster, Maryland, USA
| | | | - Mary Lai Preuss
- Department of Biological Sciences, Webster University, St. Louis, Missouri, USA
| | - James V. Price
- Department of Biology, Utah Valley University, Orem, Utah, USA
| | - Nicholas A. Pullen
- Department of Biological Sciences, University of Northern Colorado, Greeley, Colorado, USA
| | - Catherine Reinke
- Department of Biology, Linfield University, McMinnville, Oregon, USA
| | - Dennis Revie
- Department of Biology, California Lutheran University, Thousand Oaks, California, USA
| | - Srebrenka Robic
- Department of Biology, Agnes Scott College, Decatur, Georgia, USA
| | | | - Michael R. Rubin
- Department of Biology, University of Puerto Rico at Cayey, Cayey, Puerto Rico, USA
| | - Takrima Sadikot
- Department of Biology, Washburn University, Topeka, Kansas, USA
| | | | - Maria Santisteban
- Department of Biology, University of North Carolina at Pembroke, Pembroke, North Carolina, USA
| | - Kenneth Saville
- Department of Biology, Albion College, Albion, Michigan, USA
| | - Stephanie Schroeder
- Department of Biological Sciences, Webster University, St. Louis, Missouri, USA
| | | | - Karim A. Sharif
- Department of Biology, Massasoit Community College, Brockton, Massachusetts, USA
| | | | - Chiyedza Small
- Department of Biology, Medgar Evers College, CUNY, Brooklyn, New York, USA
| | - Sheryl Smith
- Department of Biology, Arcadia University, Glenside, Pennsylvania, USA
| | - Rebecca Spokony
- Department of Natural Sciences, Baruch College, CUNY, New York, New York, USA
| | - Aparna Sreenivasan
- Department of Biology, School of Natural Sciences, California State University, Monterey Bay, Seaside, California, USA
| | - Joyce Stamm
- Department of Biology, University of Evansville, Evansville, Indiana, USA
| | | | - Katherine C. Teeter
- Department of Biology, Northern Michigan University, Marquette, Michigan, USA
| | - Justin Thackeray
- Department of Biology, Clark University, Worcester, Massachusetts, USA
| | | | | | - Cindy Wolfe
- Department of Biology, Kentucky Wesleyan College, Owensboro, Kentucky, USA
| | - James Youngblom
- Department of Biological Sciences, California State University Stanislaus, Turlock, California, USA
| | - Brian Yowler
- Department of Biology, Geneva College, Beaver Falls, Pennsylvania, USA
| | - Leming Zhou
- Health Information Management, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Janie Brennan
- Department of Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Jeremy Buhler
- Department of Computer Science and Engineering, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Wilson Leung
- Department of Biology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Sarah C. R. Elgin
- Department of Biology, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Laura K. Reed
- Department of Biological Sciences, University of Alabama, Tuscaloosa, Alabama, USA
| |
Collapse
|
2
|
Lopatto D, Rosenwald AG, DiAngelo JR, Hark AT, Skerritt M, Wawersik M, Allen AK, Alvarez C, Anderson S, Arrigo C, Arsham A, Barnard D, Bazinet C, Bedard JEJ, Bose I, Braverman JM, Burg MG, Burgess RC, Croonquist P, Du C, Dubowsky S, Eisler H, Escobar MA, Foulk M, Furbee E, Giarla T, Glaser RL, Goodman AL, Gosser Y, Haberman A, Hauser C, Hays S, Howell CE, Jemc J, Johnson ML, Jones CJ, Kadlec L, Kagey JD, Keller KL, Kennell J, Key SCS, Kleinschmit AJ, Kleinschmit M, Kokan NP, Kopp OR, Laakso MM, Leatherman J, Long LJ, Manier M, Martinez-Cruzado JC, Matos LF, McClellan AJ, McNeil G, Merkhofer E, Mingo V, Mistry H, Mitchell E, Mortimer NT, Mukhopadhyay D, Myka JL, Nagengast A, Overvoorde P, Paetkau D, Paliulis L, Parrish S, Preuss ML, Price JV, Pullen NA, Reinke C, Revie D, Robic S, Roecklein-Canfield JA, Rubin MR, Sadikot T, Sanford JS, Santisteban M, Saville K, Schroeder S, Shaffer CD, Sharif KA, Sklensky DE, Small C, Smith M, Smith S, Spokony R, Sreenivasan A, Stamm J, Sterne-Marr R, Teeter KC, Thackeray J, Thompson JS, Peters ST, Van Stry M, Velazquez-Ulloa N, Wolfe C, Youngblom J, Yowler B, Zhou L, Brennan J, Buhler J, Leung W, Reed LK, Elgin SCR. Facilitating Growth through Frustration: Using Genomics Research in a Course-Based Undergraduate Research Experience. J Microbiol Biol Educ 2020; 21:jmbe-21-6. [PMID: 32148609 PMCID: PMC7048401 DOI: 10.1128/jmbe.v21i1.2005] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/23/2020] [Indexed: 06/10/2023]
Abstract
A hallmark of the research experience is encountering difficulty and working through those challenges to achieve success. This ability is essential to being a successful scientist, but replicating such challenges in a teaching setting can be difficult. The Genomics Education Partnership (GEP) is a consortium of faculty who engage their students in a genomics Course-Based Undergraduate Research Experience (CURE). Students participate in genome annotation, generating gene models using multiple lines of experimental evidence. Our observations suggested that the students' learning experience is continuous and recursive, frequently beginning with frustration but eventually leading to success as they come up with defendable gene models. In order to explore our "formative frustration" hypothesis, we gathered data from faculty via a survey, and from students via both a general survey and a set of student focus groups. Upon analyzing these data, we found that all three datasets mentioned frustration and struggle, as well as learning and better understanding of the scientific process. Bioinformatics projects are particularly well suited to the process of iteration and refinement because iterations can be performed quickly and are inexpensive in both time and money. Based on these findings, we suggest that a dynamic of "formative frustration" is an important aspect for a successful CURE.
Collapse
Affiliation(s)
- David Lopatto
- Center for Teaching, Learning and Assessment, Grinnell College, Grinnell, IA 50112, USA
| | | | | | - Amy T. Hark
- Biology, Muhlenberg College, Allentown, PA 18104, USA
| | | | - Matthew Wawersik
- Biology, College of William and Mary, Williamsburg, VA 23187, USA
| | - Anna K. Allen
- Biology, Howard University, Washington, DC 20059, USA
| | | | - Sara Anderson
- Biosciences, Minnesota State University Moorhead, Moorhead, MN 56563, USA
| | - Cindy Arrigo
- Biology, New Jersey City University, Jersey City, NJ 07305, USA
| | - Andrew Arsham
- Biology, Bemidji State University, Bemidji, MN 56601, USA
| | - Daron Barnard
- Biology, Worcester State University, Worcester, MA 01602, USA
| | | | - James E. J. Bedard
- Biology, University of the Fraser Valley, Abbotsford, BC, V2S 7M8, Canada
| | - Indrani Bose
- Biology, Western Carolina University, Cullowhee, NC 28723, USA
| | | | - Martin G. Burg
- Biomedical Sciences and Cell & Molecular Biology, Grand Valley State University, Allendale, MI 49401, USA
| | | | - Paula Croonquist
- Biology, Anoka-Ramsey Community College, Coon Rapids, MN 55433, USA
| | - Chunguang Du
- Biology, Montclair State University, Montclair, NJ 07043, USA
| | | | - Heather Eisler
- Biology, University of the Cumberlands, Williamsburg, KY 40769, USA
| | - Matthew A. Escobar
- Biological Sciences, California State University San Marcos, CA 92096, USA
| | | | - Emily Furbee
- Biology, Washington and Jefferson College, Washington, PA 15301, USA
| | | | - Rivka L. Glaser
- Biological Sciences, Stevenson University, Owings Mills, MD 21117, USA
| | - Anya L. Goodman
- Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, CA 93407, USA
| | - Yuying Gosser
- Student Research and Scholarship, City College CUNY, New York, NY 10031, USA
| | - Adam Haberman
- Biology, University of San Diego, San Diego, CA 92110, USA
| | | | - Shan Hays
- Biology, Western Colorado University, Gunnison, CO 81231, USA
| | - Carina E. Howell
- Biological Sciences, Lock Haven University, Lock Haven, PA 17745, USA
| | - Jennifer Jemc
- Biology, Loyola University Chicago, Chicago, IL 60660, USA
| | | | | | - Lisa Kadlec
- Biology, Wilkes University, Wilkes-Barre, PA 18766, USA
| | - Jacob D. Kagey
- Biology, University of Detroit Mercy, Detroit, MI 48221, USA
| | | | | | - S. Catherine Silver Key
- Biological and Biomedical Sciences, North Carolina Central University, Durham, NC 27707, USA
| | | | | | - Nighat P. Kokan
- Natural Sciences, Cardinal Stritch University, Milwaukee, WI 53217, USA
| | | | - Meg M. Laakso
- Biology, Eastern University, St. Davids, PA 19087, USA
| | - Judith Leatherman
- Biological Sciences, University of Northern Colorado, Greeley, CO 80639, USA
| | - Lindsey J. Long
- Biology, Oklahoma Christian University, Oklahoma City, OK 73136, USA
| | - Mollie Manier
- Biological Sciences, George Washington University, Washington, DC 20052, USA
| | | | - Luis F. Matos
- Biology, Eastern Washington University, Cheney, WA 99004, USA
| | - Amie Jo McClellan
- Science and Mathematics, Bennington College, Bennington, VT 05201, USA
| | - Gerard McNeil
- Biology, York College / CUNY, Jamaica, NY 11451, USA
| | - Evan Merkhofer
- Natural Sciences, Mount Saint Mary College, Newbergh, NY 12550, USA
| | - Vida Mingo
- Biology, Columbia College, Columbia, SC 29203, USA
| | - Hemlata Mistry
- Biology and Biochemistry, Widener University, Chester, PA 19013, USA
| | | | | | - Debaditya Mukhopadhyay
- Molecular Biology, Biochemistry, and Bioinformatics, Towson University, Towson, MD 21252, USA
| | | | - Alexis Nagengast
- Chemistry and Biochemistry, Widener University, Chester, PA 19013, USA
| | | | - Don Paetkau
- Biology, Saint Mary’s College, Notre Dame, IN 46556, USA
| | | | - Susan Parrish
- Biology, McDaniel College, Westminster, MD 21157, USA
| | - Mary Lai Preuss
- Biological Sciences, Webster University, St. Louis, MO 63119, USA
| | | | - Nicholas A. Pullen
- Biological Sciences, University of Northern Colorado, Greeley, CO 80639, USA
| | | | - Dennis Revie
- Biology, California Lutheran University, Thousand Oaks, CA 91360, USA
| | | | | | - Michael R. Rubin
- Biology, University of Puerto Rico at Cayey, Cayey, PR 00736, USA
| | | | | | - Maria Santisteban
- Biology, University of North Carolina at Pembroke, Pembroke, NC 28372, USA
| | | | | | | | - Karim A. Sharif
- Biology, Massasoit Community College, Brockton, MA 02302, USA
| | | | - Chiyedza Small
- Biology, Medgar Evers College, CUNY, Brooklyn, NY 11225, USA
| | - Mary Smith
- Biology, North Carolina A & T State University, Greensboro, NC 27411, USA
| | - Sheryl Smith
- Biology, Arcadia, University, Glenside, PA 19038, USA
| | - Rebecca Spokony
- Natural Sciences, Baruch College, CUNY, New York, NY 10010, USA
| | - Aparna Sreenivasan
- Biology, School of Natural Sciences, California State University, Monterey Bay, Seaside, CA 93950, USA
| | - Joyce Stamm
- Biology, University of Evansville, Evansville, IN 47722, USA
| | | | | | | | | | | | | | | | - Cindy Wolfe
- Biology, Kentucky Wesleyan College, Owensboro, KY 42301, USA
| | - James Youngblom
- Biological Sciences, California State University Stanislaus, Turlock, CA 95382, USA
| | - Brian Yowler
- Biology, Grove City College, Grove City, PA 16127, USA
| | - Leming Zhou
- Health Information Management, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Janie Brennan
- Energy, Environmental and Chemical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Jeremy Buhler
- Computer Science and Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Wilson Leung
- Biology, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Laura K. Reed
- Biological Sciences, University of Alabama Tuscaloosa, AL 35487, USA
| | - Sarah C. R. Elgin
- Biology, Washington University in St. Louis, St. Louis, MO 63130, USA
| |
Collapse
|
3
|
Zajitschek F, Zajitschek S, Manier M. Correction to 'High-protein paternal diet confers an advantage to sons in sperm competition'. Biol Lett 2017; 13:rsbl.2017.0297. [PMID: 28724690 DOI: 10.1098/rsbl.2017.0297] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
4
|
Zajitschek F, Zajitschek S, Manier M. Paternal diet affects differential gene expression, but not sperm competition, in sons. Biol Lett 2017; 13:rsbl.2016.0914. [PMID: 28202685 PMCID: PMC5326516 DOI: 10.1098/rsbl.2016.0914] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 11/24/2016] [Accepted: 01/20/2017] [Indexed: 12/17/2022] Open
Abstract
Parental environment can widely influence offspring phenotype, but paternal effects in the absence of parental care remain poorly understood. We asked if protein content in the larval diet of fathers affected paternity success and gene expression in their sons. We found that males reared on high-protein diet had sons that fared better during sperm competition, suggesting that postcopulatory sexual selection is subject to transgenerational paternal effects. Moreover, immune response genes were downregulated in sons of low-protein fathers, while genes involved in metabolic and reproductive processes were upregulated.
Collapse
Affiliation(s)
- Felix Zajitschek
- Department of Biological Sciences, George Washington University, Washington, DC, USA.,School of Biological Sciences, Monash University, Melbourne, Australia
| | - Susanne Zajitschek
- Department of Biological Sciences, George Washington University, Washington, DC, USA.,School of Biological Sciences, Monash University, Melbourne, Australia.,Doñana Biological Station, EBD-CSIC, Seville, Spain
| | - Mollie Manier
- Department of Biological Sciences, George Washington University, Washington, DC, USA
| |
Collapse
|
5
|
Trolliard G, Ténèze N, Boullay P, Manier M, Mercurio D. HRTEM study of cation-deficient perovskite-related AnBn−δO3n (n⩾4δ) microphases in the Ba5Nb4O15–BaTiO3 system. J SOLID STATE CHEM 2003. [DOI: 10.1016/s0022-4596(03)00097-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
6
|
Manier M, Cristina N, Chatellard-Causse C, Mouchet P, Herman JP, Feuerstein C. Striatal target-induced axonal branching of dopaminergic mesencephalic neurons in culture via diffusible factors. J Neurosci Res 1997; 48:358-71. [PMID: 9169862] [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: 02/04/2023]
Abstract
The effects of striatal target cells on the morphological development of dopaminergic neurons were studied in dissociated cultures of embryonic rat mesencephalon. Mesencephalic neurons were cultured for four days in presence of target striatal cells or non target cerebellar ones. The outgrowth of dopaminergic neurons, visualized after tyrosine hydroxylase immunohistochemistry, was examined by quantitative morphometry. In cocultures, the increased complexity of dopaminergic neurites (branching) was the most striking pattern. It was dependent on the presence of target striatal cells as compared to non target ones. Cultures raised in presence or absence of serum lead to suggest the implication of striatal neurons rather than glia. Using MAP2 and phosphorylated neurofilaments immunohistochemistry in combination with tyrosine hydroxylase immunolabelling, it could be shown that the target-induced branching effect concerned only axonal and not dendritic processes. To further define whether diffusible factors from the striatal target would participate in the axonal branching effect, mesencephalic cells were cultured in conditioned medium from striatal neurons. Striatal conditioned medium enhanced dopamine uptake and dopamine neuron branching to the same extent as that observed in striatal cocultures. These findings demonstrate that soluble factors secreted by striatal neurons themselves selectively influence the branching of dopaminergic axons in vitro.
Collapse
Affiliation(s)
- M Manier
- INSERM U.318, LAPSEN, Pavillon de Neurologie, CHU et Université JosephFourier, Grenoble, France
| | | | | | | | | | | |
Collapse
|
7
|
Abstract
The detection of the glial cell-line derived neurotrophic factor (GDNF) mRNA by RT-PCR in dissociated cell culture of rat embryonic or post-natal brain allowed the amplification of a doublet. The major band corresponded to the expected size and the minor one to a shorter product. We cloned and sequenced the latter product, and thus identified a mRNA potentially encoding for an isoform of the initially described precursor protein involved in GDNF synthesis.
Collapse
Affiliation(s)
- N Cristina
- Laboratoire de Physiologie, Inserm U318, C.H.U. de Grenoble, France
| | | | | | | |
Collapse
|
8
|
Paturle-Lafanechère L, Manier M, Trigault N, Pirollet F, Mazarguil H, Job D. Accumulation of delta 2-tubulin, a major tubulin variant that cannot be tyrosinated, in neuronal tissues and in stable microtubule assemblies. J Cell Sci 1994; 107 ( Pt 6):1529-43. [PMID: 7962195 DOI: 10.1242/jcs.107.6.1529] [Citation(s) in RCA: 135] [Impact Index Per Article: 4.5] [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: 11/20/2022] Open
Abstract
Tubulin is the major protein component of brain tissue. It normally undergoes a cycle of tyrosination-detyrosination on the carboxy terminus of its alpha-subunit and this results in subpopulations of tyrosinated tubulin and detyrosinated tubulin. Brain tubulin preparations also contain a third major tubulin subpopulation, composed of a non-tyrosinatable variant of tubulin that lacks a carboxy-terminal glutamyl-tyrosine group on its alpha-subunit (delta 2-tubulin). Here, the abundance of delta 2-tubulin in brain tissues, its distribution in developing rat cerebellum and in a variety of cell types have been examined and compared with that of total alpha-tubulin and of tyrosinated and detyrosinated tubulin. Delta 2-tubulin accounts for approximately 35% of brain tubulin. In rat cerebellum, delta 2-tubulin appears early during neuronal differentiation and is detected only in neuronal cells. This apparent neuronal specificity of delta 2-tubulin is confirmed by examination of its distribution in cerebellar cells in primary cultures. In such cultures, neuronal cells are brightly stained with anti-delta 2-tubulin antibody while glial cells are not. Delta 2-tubulin is apparently present in neuronal growth cones. As delta 2-tubulin, detyrosinated tubulin is enriched in neuronal cells, but in contrast with delta 2-tubulin, detyrosinated tubulin is not detectable in Purkinje cells and is apparently excluded from neuronal growth cones. In a variety of cell types such as cultured fibroblasts of primary culture of bovine adrenal cortical cells, delta 2-tubulin is confined to very stable structures such as centrosomes and primary cilia. Treatment of such cells with high doses of taxol leads to the appearance of delta 2-tubulin in microtubule bundles. Delta 2-tubulin also occurs in the paracrystalline bundles of protofilamentous tubulin formed after vinblastine treatment. Delta 2-tubulin is present in sea urchin sperm flagella and it appears in sea urchin embryo cilia during development. Thus, delta 2-tubulin is apparently a marker of very long-lived microtubules. It might represent the final stage of alpha-tubulin maturation in long-lived polymers.
Collapse
Affiliation(s)
- L Paturle-Lafanechère
- INSERM Unité 366, Laboratoire du Cytosquelette, Centre d'Etudes Nucléaires de Grenoble, France
| | | | | | | | | | | |
Collapse
|
9
|
Bal A, Bachelot T, Savasta M, Manier M, Verna JM, Benabid AL, Feuerstein C. Evidence for dopamine D2 receptor mRNA expression by striatal astrocytes in culture: in situ hybridization and polymerase chain reaction studies. Brain Res Mol Brain Res 1994; 23:204-12. [PMID: 8057777 DOI: 10.1016/0169-328x(94)90227-5] [Citation(s) in RCA: 74] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The expression of dopamine D2 receptor mRNA in cultured rat striatal and cerebellar astrocytes was examined by in situ hybridization (ISH) and polymerase chain reaction (PCR). Cells double-labelled for glial fibrillary acidic protein (GFAP) immuno-histochemistry and dopamine D2 receptor mRNA (ISH) provide evidence that striatal but not cerebellar astrocytes express the dopamine D2 gene in vitro. These results were confirmed by polymerase chain reaction studies. As judged by GFAP immunostaining and morphology of the cells, this gene is almost exclusively expressed by astrocytes type 1. The expression of dopamine D2 receptor mRNA by striatal astrocytes in vitro, as found in this study, brings thus evidences for the existence of dopamine D2 receptors in such glial cells. This had been previously suggested from ligand binding studies but the typical dopaminergic nature of the binding to striatal astrocytes was left questionable. Our results with molecular biological techniques thus suggest that striatal dopamine might modulate the functions of striatal astrocytes.
Collapse
Affiliation(s)
- A Bal
- INSERM U318 Neurobiologie Préclinique et Université J. Fourier, Département des Neurosciences Cliniques et Biologiques, CHU de Grenoble, France
| | | | | | | | | | | | | |
Collapse
|
10
|
Abrous DN, Manier M, Mennicken F, Feuerstein C, Le Moal M, Herman JP. Intrastriatal transplants of embryonic dopaminergic neurons counteract the increase of striatal enkephalin immunostaining but not serotoninergic sprouting elicited by a neonatal lesion of the nigrostriatal dopaminergic pathway. Eur J Neurosci 1993; 5:128-36. [PMID: 7903185 DOI: 10.1111/j.1460-9568.1993.tb00478.x] [Citation(s) in RCA: 22] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The aim of the our experiment was to compare the ability of intrastriatal implants of embryonic dopaminergic neurons to reverse two kinds of postlesion modification in the host brain: the change in the activity level of neurons in the denervated area and morphological modifications, e.g. collateral sprouting. The ascending dopaminergic system of 3-day-old rat pups was unilaterally lesioned by an intrahypothalamic injection of the neurotoxin 6-hydroxydopamine. This lesion has been described previously to induce an increase in the level of activity of striatal enkephalinergic neurons. The same lesion leads also to sprouting of the serotoninergic afferents in the striatum, leading to hyperinnervation of this structure. The existence of these modifications thus offers the possibility of testing the influence of grafts in one structure of the same animal on two lesion-induced reactions of different nature. A cell suspension obtained from mesencephali of embryonic day 14 rats and containing dopaminergic neurons was implanted into the denervated striatum of lesioned animals 5 days after the lesion. Nine months later the animals were killed and immunohistochemistry was performed on striatal sections using antibodies directed against tyrosine hydroxylase, methionine enkephalin and serotonin. Intensity of immunostaining (methionine enkephalin and serotonin) as well as innervation density (serotonin) was quantified through the use of a computer-assisted image analyser. The lesion led to the disappearance of striatal dopaminergic innervation. Implanted dopaminergic neurons were found scattered in the striatum and restored a dopaminergic innervation in a large portion of this structure. There was a marked increase in striatal methionine enkephalin immunostaining in lesioned animals, which was most pronounced in the dorsolateral part of the striatum (+ 150% compared to control values), while in the ventral part it was slight or non-existent. The density of striatal serotoninergic innervation was also increased by approximately 250% relative to control values. In grafted animals striatal enkephalin immunostaining was similar to that observed in control animals. On the other hand, the serotoninergic hyperinnervation was still present in the graft-bearing striata. These results suggest that while intrastriatal implants of embryonic dopaminergic neurons are able to counteract modifications in the functioning of local striatal neuronal systems such as the increase in enkephalinergic activity or receptor hypersensitivity occurring as a result of the lesion, they might be unable to reverse postlesion morphological modifications.
Collapse
Affiliation(s)
- D N Abrous
- INSERM U-259, Domaine de Carreire, Bordeaux, France
| | | | | | | | | | | |
Collapse
|
11
|
Mouchet P, Manier M, Feuerstein C. Immunohistochemical study of the catecholaminergic innervation of the spinal cord of the rat using specific antibodies against dopamine and noradrenaline. J Chem Neuroanat 1992; 5:427-40. [PMID: 1418755 DOI: 10.1016/0891-0618(92)90059-y] [Citation(s) in RCA: 33] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We have assessed the relative contributions of dopaminergic and noradrenergic descending systems to the catecholaminergic innervation of the rat spinal cord. Fibres and terminals were labelled with their own neurotransmitter by using specific antibodies raised against dopamine (DA) and noradrenaline (NA) respectively. For this purpose, immunohistochemistry according to the peroxidase anti-peroxidase technique was performed in different experimental conditions. Two group of rats received intracisternal 6-hydroxy-dopamine (6-OHDA) injections either with or without benzatropine pretreatment. Animals of a third group were not pretreated at all. While 6-OHDA induced a complete disappearance of spinal NA-like immunoreactivity (NA-LI), except for scarce residual fibres in the thoracic intermedio-lateral cell column, DA-like immunoreactivity (DA-LI) was unaffected by the lesion. This strongly suggests that the antisera used specifically labelled NA-containing and DA-containing fibres respectively. Spinal DA-LI and NA-LI innervations differed markedly in their topographical distributions and in the morphology of the corresponding fibres. DA-LI innervation was restricted to laminae I, III and IV and to the intermediate zone, especially the autonomic areas. In the ventral horn, it was sparse and more visible after acidification of the fixation solution. NA-LI innervation was much more widely spread. In addition, the organization of NA-LI fibres suggests that the innervation of the whole dorsal horn comes from a group of fibres travelling, at least partially, in the superficial dorsal horn.
Collapse
Affiliation(s)
- P Mouchet
- Laboratoire de Physiologie section Neurophysiologie, INSERM U.318, CHU de Grenoble, France
| | | | | |
Collapse
|
12
|
Abstract
The role of the locus ceruleus (LC) in the control of migrating myoelectric complex (MMC) was investigated in rats with lesions induced by injections of 6-hydroxydopamine (6-OHDA). Control animals received the vehicle alone. MMC was recorded in conscious rats chronically fitted with electrodes. After 6-OHDA was injected into the LC, lesions of the LC were total, partial (mostly rostral), or ineffective. The MMC period was significantly longer in animals with a total or partial lesion but was unchanged in animals with an ineffective lesion. No lesion of other brain noradrenergic nuclei was observed. The longer MMC period is comparable to that obtained after intracerebroventricular injection of 6-OHDA, which is responsible for a more diffuse destruction of brain noradrenergic systems, including LC itself. Bilateral lesions of the central tegmental tract, which carries ascending noradrenergic axons from the medullary and pontine cell groups outside the LC, do not alter the MMC cycle. Consequently, the LC is most likely the major brain noradrenergic candidate for modulating the MMC pattern in rats.
Collapse
Affiliation(s)
- B Bonaz
- Laboratoire de Physiologie, Institut National de la Santé et de la Recherche Médicale, U318, Grenoble, France
| | | | | | | | | | | |
Collapse
|
13
|
Peretti-Renucci R, Feuerstein C, Manier M, Lorimier P, Savasta M, Thibault J, Mons N, Geffard M. Quantitative image analysis with densitometry for immunohistochemistry and autoradiography of receptor binding sites--methodological considerations. J Neurosci Res 1991; 28:583-600. [PMID: 1678436 DOI: 10.1002/jnr.490280416] [Citation(s) in RCA: 43] [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: 12/28/2022]
Abstract
Major technical progress in the development of computer-based image analysis has made possible the entry of autoradiography and immunohistochemistry into a new era where quantification by densitometry has become easily accessible. Autoradiography could become quantitative and displayed adequate reproducibility with the help of emulsion-coated films and the use of scales of standards of known radioactivity exposed and analyzed in parallel to the tissue sections. Immunohistochemistry after revelation by a color-based enzymatic technique can also become quantitative, providing that standardization of the crucial steps of the procedure and calibration through a parallel treatment of a scale of antigen standards can be ensured. Such an approach is described here in the rat with reference to tyrosine hydroxylase (TH), the main synthesizing enzyme for catecholamines, and with dopamine (DA) itself, a catecholaminergic neurotransmitter. The different parts of the procedure, which can influence the results, such as the fixation of the animals by perfusion and the evaluation of the fluctuations via the calibration curve, are discussed in detail. Biological validation of the proposed procedure is described by reference to experiments already well documented biochemically, such as the induction effect of reserpine on TH in the rat locus coeruleus and the depleting effect of alpha-methyltyrosine (AMPT), a well-known blocker of TH activity, on rat striatal DA content. Finally the importance of restricting the measurements to the (pseudo)linear portion of the calibration curve is illustrated by the autoradiographic identification of the differential intrastriatal repartition of the dopaminergic D1 and D2 receptor sites, particularly the dual patch-matrix compartments.
Collapse
Affiliation(s)
- R Peretti-Renucci
- Laboratoire de Physiologie Section Neurophysiologie (LAPSEN), INSERM U 318, Département des Neurosciences Cliniques et Biologiques, CHU de Grenoble, France
| | | | | | | | | | | | | | | |
Collapse
|
14
|
Bonaz B, Martin L, Beurriand E, Manier M, Hostein J, Feuerstein C. Modulation of the migrating myoelectric complex by brain noradrenergic systems in rats. Am J Physiol 1991; 260:G340-5. [PMID: 1899972 DOI: 10.1152/ajpgi.1991.260.2.g340] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The respective role of central and peripheral noradrenergic systems in the control of migrating myoelectric complex (MMC) was investigated in rats following lesions with 6-hydroxydopamine (6-OHDA). 6-OHDA was injected via intraperitoneal (ip), intracisternal (icis), and intracerebroventricular (icv) routes in rats. Control animals received the vehicle alone. One month later, MMC was recorded in conscious rats chronically fitted with electrodes. The MMC period was significantly lengthened after 6-OHDA ip or icv injection, and slightly shortened after 6-OHDA icis injection. No disruption of central noradrenergic systems was detected after ip lesions. Norepinephrine content was reduced in the digestive tract after ip lesions, in the spinal cord after icis lesions, and in the cortex, the hypothalamus, pons-medulla, and the spinal cord after icv lesions. After icis lesions, noradrenergic perikarya were spared in pons-medulla, whereas only pons noradrenergic perikarya were lesioned after icv lesions. We conclude that lesions of brain noradrenergic systems modify MMC periodicity in rats. The rostral noradrenergic systems may play the major modulatory role.
Collapse
Affiliation(s)
- B Bonaz
- Laboratoire de Physiologie, Institut National de la Santé et de la Recherche Médicale, U318, Grenoble, France
| | | | | | | | | | | |
Collapse
|
15
|
Manier M, Abrous DN, Feuerstein C, Le Moal M, Herman JP. Increase of striatal methionin enkephalin content following lesion of the nigrostriatal dopaminergic pathway in adult rats and reversal following the implantation of embryonic dopaminergic neurons: a quantitative immunohistochemical analysis. Neuroscience 1991; 42:427-39. [PMID: 1896133 DOI: 10.1016/0306-4522(91)90386-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.4] [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: 12/29/2022]
Abstract
The aim of the present study was to test whether intrastriatal implants of embryonic dopaminergic neurons are able to normalize the lesion-induced dysfunction of striatal enkephalinergic neurons, one of the major output systems of the striatum. The ascending dopaminergic pathway of adult rats was unilaterally lesioned. Three weeks later a cell suspension obtained from the mesencephali of ED14 rat embryos was implanted into the denervated striatum and striatal methionin enkephalin immunostaining was quantified six months later by the use of an image analyser. Methionin enkephalin immunostaining was unevenly distributed in the striatum of control animals. Besides the classical patch/matrix pattern, a mediolateral gradient was also present and, moreover, immunostaining decreased towards caudal levels. Seven months after the lesion of the nigrostriatal dopaminergic pathway, methionin enkephalin immunostaining was found to be increased in the denervated striatum by about 50%. However, relative increases were more sustained in the areas where basal methionin enkephalin immunostaining were lowest, i.e. the lateral striatum and posterior striatal areas. This resulted in an attenuation of the global gradients seen in the normal striatum. Increased immunostaining was also found in the ipsilateral globus pallidus. The implantation, into the denervated striatum, of embryonic dopaminergic neurons led to a reversal of the lesion-induced increase of striatal and pallidal methionin enkephalin immunostaining six months later. Moreover, this reversal resulted in an overshoot, as the level of immunostaining in the graft-bearing striatum was found to be lower than the levels found in the normal striatum. It is concluded that grafts of embryonic dopaminergic neurons can normalize the function of one of the major output systems of the striatum and, through it, influence more distant targets of this structure. This suggests a physiological basis for the behavioral effects observed previously with such grafts.
Collapse
Affiliation(s)
- M Manier
- INSERM U-318, CHU de Grenoble, France
| | | | | | | | | |
Collapse
|
16
|
Yablonsky F, Savasta M, Manier M, Poirier M, Lacolle JY, Feuerstein C. Autoradiographic localization of α1-adrenoceptors in the dog prostate and urethra with3H-prazosin. Neurourol Urodyn 1991. [DOI: 10.1002/nau.1930100306] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
17
|
Manier M, Feuerstein C, Passagia JG, Mouchet P, Mons N, Geffard M, Thibault J. Evidence for the existence of L-dopa- and dopamine-immunoreactive nerve cell bodies in the caudal part of the dorsal motor nucleus of the vagus nerve. J Chem Neuroanat 1990; 3:193-205. [PMID: 1973044] [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: 12/29/2022]
Abstract
The precise neurochemical nature of tyrosine hydroxylase-immunoreactive neurons lying in the caudal part of the dorsal motor nucleus of the vagus nerve of the rat has been identified by immunohistochemistry of the catecholamines themselves. This region corresponds precisely to the area where tyrosine hydroxylase has been previously shown to be colocalized with choline acetyltransferase. Adjacent serial cryostat sections from the medulla oblongata and from the cervical spinal cord were treated either for choline acetyltransferase immunohistochemistry, aromatic L-amino acid decarboxylase and tyrosine hydroxylase immunolabelling or for tyrosine hydroxylase, dopamine, noradrenaline and L-dihydroxyphenylalanine (DOPA) immunostaining. The procedure involved the peroxidase-antiperoxidase method and an intensified diaminobenzidine reaction with imidazole. While no noradrenaline-positive cells were detectable in the dorsal motor vagal nucleus, tyrosine hydroxylase-, dopamine- and DOPA-immunoreactive perikarya were seen in the medial half of this nucleus, caudally the obex level. These results led us to conclude that these tyrosine hydroxylase-positive cells were effectively of dopaminergic nature and therefore that dopamine is a neurotransmitter contained in some neurons of the dorsal motor vagal nucleus. In the light of previous data showing colocalization of tyrosine hydroxylase and choline acetyltransferase in neurons of this portion of the nucleus, colocalization of dopamine with acetylcholine appears most likely. This might shed some light on the physiological consequences of dopamine action at target parasympathetic organs, such as the gastrointestinal tract.
Collapse
Affiliation(s)
- M Manier
- Laboratoire de Physiologie section Neurophysiologie (LAPSEN), Inserm U 318, CHU de Grenoble, France
| | | | | | | | | | | | | |
Collapse
|
18
|
Feuerstein C, Peretti-Renucci R, Savasta M, Scatton B, Manier M, Dubois A, Thibault J, Mons N, Geffard M. Critical review on quantitative autoradiography of D1 and D2 dopaminergic receptors in the striatum of the mammalian brain: differential localization and plastic changes after pharmacological manipulation and dopaminergic input disruption. Anal Cell Pathol 1989; 1:153-71. [PMID: 2577261] [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: 01/01/2023] Open
Abstract
Major technical progress in the development of computer-based image analysis systems has made possible the entry of autoradiographic and immunohistochemical techniques into a new era where quantification via densitometry and morphometry has become easily accessible. In this context, quantitative biochemical data can be adapted to anatomical and histological resolution. This adaptation is most efficient in the neuroscience fields because of the huge importance of cellular communication via neuronal networks in the nervous system. Therefore, any experimental approach to the brain which considers the brain as a 'black box' appears now as very crude. In fact, subtle heterogeneity in the distribution of biochemical markers can now be demonstrated, as illustrated here by the use of quantitative autoradiography of D1 and D2 dopaminergic receptors in the striatum of the mammalian brain. Also, local adaptive changes resulting from chronic blockade of the dopaminergic input can be detected after repeated treatments with dopaminergic antagonists selective for D1 or D2 receptors or with surgical lesioning of the dopaminergic nigrostriatal pathway. The resulting plastic changes are unevenly distributed throughout the striatal target organ and vary according to the mode of suppressing the dopaminergic flow: direct destruction of the dopaminergic pathway or selective pharmacological manipulation without physical elimination of the dopaminergic cells themselves. All these results are discussed and reviewed in light of the most recent reports in this field.
Collapse
Affiliation(s)
- C Feuerstein
- Laboratoire de Physiologie section Neurophysiologie (LAPSEN), INSERM U 318, CHU de Grenoble, France
| | | | | | | | | | | | | | | | | |
Collapse
|
19
|
Manier M, Mouchet P, Feuerstein C. Immunohistochemical evidence for the coexistence of cholinergic and catecholaminergic phenotypes in neurones of the vagal motor nucleus in the adult rat. Neurosci Lett 1987; 80:141-6. [PMID: 2891088 DOI: 10.1016/0304-3940(87)90643-4] [Citation(s) in RCA: 24] [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: 01/03/2023]
Abstract
Catecholaminergic nerve cell bodies have been recently identified in the rat spinal cord. They lie in the rostral cervical segments and at the lumbosacral junction. Among them, many are located in parasympathetic areas. This finding led us to investigate the interactions between these catecholaminergic neurones and the cholinergic ones. To address this question, we performed sequential immunocytochemical detection of choline acetyltransferase (ChAT) and tyrosine hydroxylase (TH) in the same sections. We could then identify the co-expression of both TH and ChAT-like immunoreactivities (LI) in some perikarya of the cervical spinal cord and medulla oblongata. Such cells are located in the caudal extension of the dorsal motor nucleus of the vagus nerve (DMNX) as well as in the caudal part of the medullary DMNX itself. Such a co-expression of TH-LI and ChAT-LI could not be found in the lumbosacral region, another parasympathetic territory where cell bodies displaying TH-LI were intermingled with those containing ChAT-LI. This is one of the first demonstrations of the co-existence of catecholaminergic and cholinergic phenotypes in some neurones of the adult mammalian nervous system. These observations also support the presence of catecholaminergic efferents within the vagus nerve.
Collapse
Affiliation(s)
- M Manier
- Laboratoire de Physiologie section Neurophysiologie, C.N.R.S., CHU de Grenoble, France
| | | | | |
Collapse
|
20
|
Savasta M, Dubois A, Feuerstein C, Manier M, Scatton B. Denervation supersensitivity of striatal D2 dopamine receptors is restricted to the ventro- and dorsolateral regions of the striatum. Neurosci Lett 1987; 74:180-6. [PMID: 2883609 DOI: 10.1016/0304-3940(87)90146-7] [Citation(s) in RCA: 85] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The precise topographical changes in striatal D2 dopamine receptors that occur after neurotoxic lesion of the mesostriatal dopaminergic pathway have been studied autoradiographically in the rat through the use of [3H]spiperone as a ligand. 6-Hydroxydopamine-induced lesion of the dopaminergic afferents to the striatum caused an increase in [3H]spiperone binding in the ventro- and dorsolateral but not in the ventro- and dorsomedian aspects of the striatum. This lesion caused a loss of tyrosine hydroxylase-like immunoreactivity in all striatal subregions. These results demonstrate that not all striatal D2 dopamine receptors are able to proliferate after dopaminergic denervation.
Collapse
|
21
|
Mouchet P, Petitjean P, Guérin B, Manier M, Pellissier G, Feuerstein C, Demenge P. [The spinal dopaminergic system]. J Pharmacol 1986; 17:523-40. [PMID: 3550296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A new dopaminergic innervation has been described quite recently: the dopaminergic spinal cord system. In this review are presented the different steps which lead to the individualization of this dopaminergic system and the reported results actually available concerning its probable anatomical organization. Finally, most of the data which illustrate the possible functions of this system are discussed. Interestingly, its participation in the transmission of nociceptive signals and the control of cardiovascular patterns appear now well established. Such functional implications give new information on the possible targets of central dopaminergic agonists and antagonists, particularly at the cardiovascular level.
Collapse
|
22
|
Marchetto DJ, Manier M. THRM forum: The role of medical record professionals in strategic planning. Top Health Rec Manage 1986; 7:73-5. [PMID: 10311651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
|
23
|
Mouchet P, Manier M, Dietl M, Feuerstein C, Berod A, Arluison M, Denoroy L, Thibault J. Immunohistochemical study of catecholaminergic cell bodies in the rat spinal cord. Brain Res Bull 1986; 16:341-53. [PMID: 2871906 DOI: 10.1016/0361-9230(86)90055-9] [Citation(s) in RCA: 66] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Immunohistochemistry of three specific synthesizing catecholamine enzymes was used in the rat spinal cord to determine precisely the distribution of catecholaminergic perikarya and the nature of the neurotransmitter they contain. Single and double labeling experiments were performed on cryostat sections from perfused rats. The peroxidase anti-peroxidase (PAP) and the indirect fluorescence techniques were used for labeling spinal catecholaminergic somata and separated into two completely different populations. The first is located in the upper cervical cord and includes three apparently distinct groups: a lateral cluster, of probably a noradrenergic nature, and two central subgroups where noradrenergic and dopaminergic neurons are intermingled. It is likely that these cervical cells represent caudal extensions of the medullary catecholaminergic cell groups. In the remaining cord, only tyrosine hydroxylase immunoreactive cell bodies have been found. Accordingly, this second population is probably dopaminergic. It is present almost exclusively in the first sacral segments, where it is located in the commissural (mostly lateral) grey matter and in the marginal dorsal horn.
Collapse
|
24
|
Dietl M, Arluison M, Mouchet P, Feuerstein C, Manier M, Thibault J. Immunohistochemical demonstration of catecholaminergic cell bodies in the spinal cord of the rat. Preliminary note. Histochemistry 1985; 82:385-9. [PMID: 2861175 DOI: 10.1007/bf00494068] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In order to elucidate the anatomy of the spinal dopaminergic system, an immunohistochemical study using a tyrosine-hydroxylase (TH) antibody was undertaken in the rat. Intracisternal 6-hydroxydopamine (6-OHDA) injections were administered to destroy most of the noradrenergic fibres that descend to the spinal cord while preserving the dopaminergic fibres. The density of the remaining TH-like immunoreactive fibres was relatively low at all levels of the spinal cord; the highest density was observed in layers III, IV and X. In addition, we report the first evidence for the existence of TH-like immunoreactive cell bodies at definite levels (especially sacral) of the spinal cord.
Collapse
|
25
|
Petitjean P, Mouchet P, Pellissier G, Manier M, Feuerstein C, Demenge P. Cardiovascular effects in the rat of intrathecal injections of apomorphine at the thoracic spinal cord level. Eur J Pharmacol 1984; 105:355-9. [PMID: 6548972 DOI: 10.1016/0014-2999(84)90632-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Intrathecal (i.t.) administration of apomorphine at the upper thoracic level lowered blood pressure and heart rate in awake rats. This decrease was dose-dependent and competitively antagonized by haloperidol (i.v. and i.t.) or domperidone (i.t.) but not by domperidone (i.v.). Furthermore, these effects of apomorphine were not affected by alpha- and beta-blocking drugs (i.t.). The results suggest a spinal site, at least in part, for the cardiovascular effect of apomorphine.
Collapse
|
26
|
Vagne A, Manier M, Brunet MA, Boucherle A. [Pharmalogical activities on NN'dimethyl-diphenoxy 2-2 ethylamine]. Therapie 1971; 26:553-61. [PMID: 5113808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|