R. Michael Roberts | |
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Born | 23 October 1940 Menston |
Alma mater | |
Works | |
Awards |
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Website | http://robertslab.missouri.edu |
Academic career | |
Fields | Embryology, developmental biology |
Institutions | |
Thesis | The utilisation of ¹⁴C labelled substrates by growing plant organs |
Doctoral advisor | Vernon S. Butt |
R. Michael Roberts (born October 23, 1940, in Menston, United Kingdom) [1] is an American biologist who is the Chancellor's Professor Emeritus of Animal sciences and Biochemistry at the University of Missouri. [2] He is a founding co-editor of the Annual Review of Animal Biosciences , first published in 2013. [3]
R. Michael Roberts was born on October 23, 1940, in Menston, in the United Kingdom. [1] He graduated with a BA in Botany and PhD in Plant Physiology/Biochemistry from the University of Oxford. [4] His DPhil thesis was entitled The utilisation of ¹⁴C labelled substrates by growing plant organs (1965) and was supervised by Vernon S. Butt. [5]
In September 1965 Roberts went to the United States to do post-doctoral work with Frank Loewus at State University of New York-Buffalo (SUNY). [6] Roberts was a faculty member in the Department of Biochemistry, University of Florida from 1970-1985. [7]
In 1985, Roberts joined the University of Missouri. [6] He served as Chair of the Veterinary Pathobiology Department the University of Missouri from 1995 to 1998. [8] He was named the Curators’ Distinguished Professor of Animal Sciences, Biochemistry, and Veterinary Pathobiology as of 1996 [9] and was the Chancellor's Professor as of 2019. [10] He is currently Chancellor's Professor Emeritus of Animal Sciences and Biochemistry. [2] [11] Roberts served as the founding director of the MU Life Sciences Center from January 2004-September 2005. [12]
Roberts served as Chief Scientist for the USDA’s National Research Initiative Competitive Grants Program (NRI) from 1998-2000. He also served on the National Research Council (NRC) Committee on Defining Science-Based Concerns Associated with Products of Animal Biotechnology, addressing concerns about the use of genetically modified animals for food, which published the report Animal Biotechnology: Science-Based Concerns (2002). [13] [14] [15] and chaired the NRC committee that investigated Animal Care & Management at the National Zoo. [16] [17] [18] [8]
In 2006-2007 R. Michael Roberts was investigated by The University of Missouri for research misconduct based on images that had been altered in a 2006 Science paper where he was the principal investigator. [19] In brief, a postdoctoral fellow Dr. Kaushik Deb fabricated and falsified digital images that supported a paper published in Science. That paper was subsequently withdrawn, and the prescribed university procedures for a research misconduct investigation were followed. The Standing Committee on Research Responsibility concluded that Dr. Deb had committed the misconduct alone, and that the co-authors on the paper (Drs. R. M. Roberts, M. Sivaguru and H.Y. Yong) were in no way culpable. The Office of Research Integrity at the National Institutes of Health now formally agrees with that conclusion (ORI2006-09). The paper was officially retracted by Roberts and an apology to the scientific community was issued in the form of a published letter. [20]
R. Michael Roberts is known for his contributions to identification of the biological mechanism of embryo-maternal signaling in ruminants, in which signals indicating the existence of the embryo lead to the maintenance of an optimal uterine environment for pregnancy and the embryo's survival. In mammals, chemical signalling between the embryo and the mother was known to be essential in sustaining a successful pregnancy. However, details of the process were not understood [21] until R. Michael Roberts and Fuller W. Bazer began a 16-year collaboration to study such relationships. [22] [23] In addition to their joint efforts, each has made independent contributions, at their respective universities. [7]
Among his key discoveries, R. Michael Roberts determined the equivalence of uteroferrin and a class of lysosomal enzymes, known as tartrate-resistant acid phosphatases (TRAPs). [21] Subsequently, Roberts was the first to successfully purify, sequence and clone TRAPs in humans. [14] As a result of this research, postmenopausal women are being screened for TRAP, which can be associated with osteoporosis. [21]
Roberts' group was the first to clone, identify, and characterize the temporal expression of trophoblast interferon-t in the ruminants sheep and cattle. [24] He studied differential transcriptional regulation of interferon-t by the transcription factors ETS-2 and Oct-4. He proposed a developmental switch to explain the formation of trophectoderm during early embryo development. He has identified more than 100 expressed genes for proteins in the aspartyl proteinase gene family, associated with pregnancy. [21] This work has formed the basis for developing a pregnancy test for dairy cattle. [25] His research on sexual dimorphism in embryos suggests that maternal diet around conception may influence an offspring’s sex. [21]
Roberts changed research direction in 2003. [26] He began to focus on the use of pluripotent stem cells and the development of models to study the emergence and differentiation of animal and human trophoblast. [27] Among his group's contributions is a study on the importance of low oxygen atmospheres to control human stem cell differentiation. [28] His laboratory was one of the first to describe the generation of induced pluripotent stem cells from an ungulate species, the pig. As of 2018, he was studying preeclampsia by generating iPS cell lines using human umbilical cords. [6] Roberts' work is supported through Federal Agencies such as the National Institutes of Health (NIH) and the United States Department of Agriculture (USDA), and through Missouri's state funding for agriculture. [29]
Cloning is the process of producing individual organisms with identical genomes, either by natural or artificial means. In nature, some organisms produce clones through asexual reproduction; this reproduction of an organism by itself without a mate is known as parthenogenesis. In the field of biotechnology, cloning is the process of creating cloned organisms of cells and of DNA fragments.
Sir Robert Geoffrey Edwards was a British physiologist and pioneer in reproductive medicine, and in-vitro fertilisation (IVF) in particular. Along with obstetrician and gynaecologist Patrick Steptoe and nurse and embryologist Jean Purdy, Edwards successfully pioneered conception through IVF, which led to the birth of Louise Brown on 25 July 1978. They founded the first IVF programme for infertile patients and trained other scientists in their techniques. Edwards was the founding editor-in-chief of Human Reproduction in 1986. In 2010, he was awarded the Nobel Prize in Physiology or Medicine "for the development of in vitro fertilization".
Captive breeding, also known as captive propagation, is the process of keeping plants or animals in controlled environments, such as wildlife reserves, zoos, botanic gardens, and other conservation facilities. It is sometimes employed to help species that are being threatened by the effects of human activities such as climate change, habitat loss, fragmentation, overhunting or fishing, pollution, predation, disease, and parasitism.
Interferon tau is a Type I interferon made of a single chain of amino acids. IFN-τ was first discovered in ruminants as the signal for the maternal recognition of pregnancy and originally named ovine trophoblast protein-1 (oTP-1). It has many physiological functions in the mammalian uterus, and also has anti-inflammatory effect that aids in the protection of the semi-allogeneic conceptus trophectoderm from the maternal immune system.
Motilal Madan is an Indian biotechnology researcher, veterinarian, academic and administrator. In a career spanning over 35 years, Madan published 432 research articles and policy papers in international and national reference journals—including 226 original research papers—and pioneered research in reproductive endocrinology, embryo biotechnology, In vitro fertilisation, and cloning.
Ralph Lawrence Brinster is an American geneticist, National Medal of Science laureate, and Richard King Mellon Professor of Reproductive Physiology at the School of Veterinary Medicine, University of Pennsylvania.
Neal Lloyd First was an American biologist.
Fuller W. Bazer is an American animal scientist and a Regents Fellow, Distinguished Professor, and O.D. Butler Chair in Animal Science at Texas A&M University.
Robert H. Burris was a professor in the Biochemistry Department at the University of Wisconsin-Madison. He was elected to the National Academy of Sciences in 1961. Research in Burris's lab focused on enzyme reaction mechanisms, and he made significant contributions to our knowledge of nitrogen fixation.
Marilyn Bernice Renfree is an Australian zoologist. She completed her PhD at the Australian National University, was a post-doctoral fellow in Tennessee and then Edinburgh before returning to Australia. Since 1991, Renfree has been Professor of Zoology at the University of Melbourne. Her main research interest focuses on reproductive and developmental biology of marsupials.
Rebecca Spindler is an Australian zoologist, researcher, and conservationist. She is the head of science and conservation at non-profit conservation organisation Bush Heritage Australia, and an adjunct professor at the University of New South Wales. She previously worked with the Taronga Conservation Society and was the manager of research and conservation at Taronga Zoo in Sydney.
Cryoconservation of animal genetic resources is a strategy wherein samples of animal genetic materials are preserved cryogenically.
Om Praksh Bahl was an Indian-American molecular biologist, academic and a Distinguished Professor of the State University of New York. He was known for his studies on Human chorionic gonadotropin, popularly known as the pregnancy hormone. He was associated with the World Health Organization as an adviser to their Population Council and was a member of the Population Research Committee of the National Institutes of Health. The Government of India awarded him the third highest civilian honour of the Padma Bhushan, in 1973, for his contributions to science and engineering.
Retinol-binding proteins (RBP) are a family of proteins with diverse functions. They are carrier proteins that bind retinol. Assessment of retinol-binding protein is used to determine visceral protein mass in health-related nutritional studies.
Nuggehalli Raghuveer Moudgal was an Indian reproductive biologist, endocrinologist and the chairman of the Department of Biochemistry and dean of Faculty of Science at the Indian Institute of Science. He was known for his pioneering researches on gonadotropin and was an elected fellow of the Indian Academy of Sciences and the Indian National Science Academy. He was an associate of noted scientists, Choh Hao Li and Rodney Robert Porter and discovered the role of hormones in generating immune response in living beings, during his association with the former. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to Medical Sciences in 1976.
Peter J. Hansen is an American animal scientist and physiologist who serves as distinguished professor and L.E. "Red" Professor of Animal Sciences in the Department of Animal Sciences at University of Florida
Maternal recognition of pregnancy is a crucial aspect of carrying a pregnancy to full term. Without maternal recognition to maintain pregnancy, the initial messengers which stop luteolysis and promote foetal implantation, growth and uterine development finish with nothing to replace them and the pregnancy is lost.
George Stark is an American chemist and biochemist. His research interests include protein and enzyme function and modification, interferons and cytokines, signal transduction, and gene expression.
Barbara Jean Francis Apgar is an American biochemist. She worked on important research on ribonucleic acids (RNA), and on zinc deficiency as a risk factor in reproduction. She won the Federal Woman's Award in 1970, and the Arthur S. Flemming Award in 1973.
The Society for the Study of Reproduction (SSR) is an international not-for-profit professional society for scientists working in the fields of reproduction, fertility and development. The Society focuses on reproduction in both people and animals, including research from the areas of medicine, agriculture and basic biology. It is credited with being the first organization to focus on "the full panoply of reproductive phenomena" and is listed as a major professional association publishing reproductive research and a major organization in American animal agriculture. The Society includes members from at least 50 countries worldwide. The official peer-reviewed scientific journal for SSR is Biology of Reproduction.
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