172 results on '"Jean-Pierre Hardelin"'
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152. The Cadherin Superfamily : Key Regulators of Animal Development and Physiology
- Author
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Shintaro T. Suzuki, Shinji Hirano, Shintaro T. Suzuki, and Shinji Hirano
- Subjects
- Cadherins
- Abstract
This book presents an overview of the entire field of cadherin research and provides the current basic concept of cadherins. Cadherins have been widely accepted as key regulators of animal development and physiological functions, and it also has become clear that they play essential roles in various human diseases. With contributions by leading scientists, the book covers various aspects of the cadherin superfamily including the history of cadherin research, basic properties of classical cadherins as well as non-classical cadherins, cadherin-associated proteins, and the roles of cadherins in health and diseases. In addition, the book presents some contradictory results and important unanswered questions, and the authors propose their working hypotheses or future directions, to inspire future studies. This volume enables graduate students and young researchers to learn the basics and gain a comprehensive image of the cadherin superfamily, and experts in the field will easily find various topics of interest in relevant areas of study. Additionally, a list of cadherin-related diseases is included for quick reference to cadherins in human diseases.
- Published
- 2016
153. Amenorrhea
- Author
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Ezechi, Oliver Chukwujekwu and Ezechi, Oliver Chukwujekwu
- Subjects
- Amenorrhea
- Abstract
As the knowledge required for efficient delivery of quality women's healthcare continues to grow, disease-specific textbooks are required to specifically address all aspects of a condition. A general textbook may not be able to address this need due to space constraints. This book is written to fill this gap as it relates to amenorrhoea, a common challenge for women within the reproductive age. The reader is offered a comprehensive knowledge of amenorrhoea, its burden, causes, presentation and management in one book. The book covers all aspect of amenorrhoea, which ordinarily is not covered by general textbooks of gynaecology. This compilation addresses various causes of amenorrhoea, from common causes such as hyperprolactinaemia to rare causes like Kallmann's syndrome and female athlete triad. The chapters are arranged in a logical and easy-to-follow style from general to specific issues making the book a daily guide as well as a reference text on amenorrhoea. The book's multi-author design is deliberate to ensure not only depth and breadth, but diversity as well. It also ensures that the experience and expertise of over twenty authors is brought to bear concerning the content. In addition, the authors utilise the available evidence moderated by their experience to produce a simple and straightforward guide for the practising gynaecologist, resident, general medical practitioner and others interested in providing quality reproductive health care to women in low, middle and high-income countries. Experienced gynaecologists and trainers will also find this book a very useful companion and guide.
- Published
- 2016
154. The Agile Gene : How Nature Turns on Nurture
- Author
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Matt Ridley and Matt Ridley
- Subjects
- Science
- Abstract
“Bracingly intelligent, lucid, balanced—witty, too.... A scrupulous and charming look at our modern understanding of genes and experience.” — Oliver SacksArmed with extraordinary new discoveries about our genes, acclaimed science writer Matt Ridley turns his attention to the nature-versus-nurture debate in a thoughtful book about the roots of human behavior.Ridley recounts the hundred years'war between the partisans of nature and nurture to explain how this paradoxical creature, the human being, can be simultaneously free-willed and motivated by instinct and culture. With the decoding of the human genome, we now know that genes not only predetermine the broad structure of the brain, they also absorb formative experiences, react to social cues, and even run memory. They are consequences as well as causes of the will.
- Published
- 2014
155. Clarin-1 gene transfer rescues auditory synaptopathy in model of Usher syndrome
- Author
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Dulon, Didier, Papal, Samantha, Patni, Pranav, Cortese, Matteo, Vincent, Philippe F.Y., Tertrais, Margot, Emptoz, Alice, Tlili, Abdelaziz, Bouleau, Yohan, Michel, Vincent, Delmaghani, Sedigheh, Aghaie, Alain, Pepermans, Elise, Alegria-Prevot, Olinda, Akil, Omar, Lustig, Lawrence, Avan, Paul, Safieddine, Saaid, Petit, Christine, and Amraoui, Aziz El-
- Subjects
Protein-protein interactions -- Analysis ,Genetic transformation -- Research ,Exocytosis -- Research ,Usher's syndrome -- Models -- Genetic aspects -- Care and treatment -- Research ,Health care industry - Abstract
Clarin-1, a tetraspan-like membrane protein defective in Usher syndrome type IIIA (USH3A), is essential for hair bundle morphogenesis in auditory hair cells. We report a new synaptic role for clarin-1 in mouse auditory hair cells elucidated by characterization of Clrn1 total ([Clrn1.sup.ex4-/-]) and postnatal hair cell- specific conditional ([Clrn1.sup.ex4fl/fl] [Myo15-Cre.sup.+/-) knockout mice. [Clrn1.sup.ex4-/-] mice were profoundly deaf, whereas [Clrn1.sup.ex4fl/fl] [Myo15-Cre.sup.+/-] mice displayed progressive increases in hearing thresholds, with, initially, normal otoacoustic emissions and hair bundle morphology. Inner hair cell (IHC) patch-clamp recordings for the 2 mutant mice revealed defective exocytosis and a disorganization of synaptic F-actin and [Ca.sub.V]1.3 [Ca.sup.2+] channels, indicative of a synaptopathy. Postsynaptic defects were also observed, with an abnormally broad distribution of AMPA receptors associated with a loss of afferent dendrites and defective electrically evoked auditory brainstem responses. Protein-protein interaction assays revealed interactions between clarin-1 and the synaptic [Ca.sub.V]1.3 [Ca.sup.2+] channel complex via the [Ca.sub.V][[beta].sub.2] auxiliary subunit and the PDZ domain-containing protein harmonin (defective in Usher syndrome type IC). Cochlear gene therapy in vivo, through adeno-associated virus-mediated Clrn1 transfer into hair cells, prevented the synaptic defects and durably improved hearing in [Clrn1.sup.ex4fl/fl] [Myo15-Cre.sup.+/-] mice. Our results identify clarin-1 as a key organizer of IHC ribbon synapses, and suggest new treatment possibilities for USH3A patients., Introduction Usher syndrome type IIIA (USH3A), characterized by progressive hearing loss and retinitis pigmentosa, is caused by mutations in CLRN1 encoding clarin-1 (refs. 1, 2, and Figure 1A). CLRN1 transcripts [...]
- Published
- 2018
- Full Text
- View/download PDF
156. Relatos de la célula errante
- Author
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Horacio Oliva Aldámiz and Horacio Oliva Aldámiz
- Subjects
- Histology, Histologi´a
- Abstract
Esta es la historia de la célula desde el primero que la describió, el pañero Leeuwenhoek. hombre de buenos amigos, como su vecino Vermeer, el pintor de interiores con el que pasea a orillas de los canales de Delft y que le nombraría su albacea. Asistimos al nacimiento de la célula que parecía romper las reglas de la naturaleza y a la intromisión de la bacteria que nos llevará hasta los campos de batalla de Napoleón.
- Published
- 2011
157. Concepts And Challenges In The Biophysics Of Hearing (With Cd-rom) - Proceedings Of The 10th International Workshop On The Mechanics Of Hearing
- Author
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Nigel P Cooper, David T Kemp, Nigel P Cooper, and David T Kemp
- Subjects
- Human mechanics--Congresses, Biomechanics--Congresses, Biophysics--Congresses, Hearing--Physiological aspects--Congresses, Hearing--Congresses
- Abstract
This book extends our understanding of the mechanics and biophysics of hearing by bringing together the latest research on the topic by experts in cell and molecular biology, physiology, physics, engineering and mathematics. It contains the proceedings of the 10th International Workshop on the Mechanics of Hearing that was held at Keele University in the United Kingdom at the end of July, 2008. Topics for discussion included theoretical and experimental research at the molecular, cellular and systems levels. Separate sections of the book deal with: the transmission of sound energy to and from the inner ear, and wave propagation within the inner ear; the enhancement of stimulus wave motion that occurs in the inner ear; new measurement techniques that will underpin future innovative studies; the micro-mechanics of the basilar and tectorial membranes and the organ of Corti; cochlear dynamics; sensory hair cells and electromechanical transduction; and sensory hair-bundles and mechano-electrical transduction. The book concludes with the transcript of an open discussion session between the participants of the workshop, highlighting areas of uncertainty and controversy in the field, and pointing the way to the solutions to be sought in future research. This book reviews and synthesizes current concepts and challenges in the biophysics of hearing, and will be an invaluable guide to researchers and students in all branches of auditory science.
- Published
- 2009
158. Mouse Models of Developmental Genetic Disease
- Author
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Robert S. Krauss and Robert S. Krauss
- Subjects
- Abnormalities, Human, Mice as laboratory animals, Diseases--Animal models, Mice
- Abstract
Approximately three percent of newborn humans have congenital anomalies with significant cosmetic and/or functional consequences. Much of our ability to understand what has gone awry in these birth defects rests with development of animal models for them; the mouse has emerged as the model organism of choice for these studies. This volume reviews mouse models of specific developmental genetic diseases, including neural tube defects; cleft lip and/or palate; congenital heart disease; ciliopathies; hereditary deafness and others to provide conceptual insight into congenital anomalies generally. The interplay between clinical observation and murine model systems is expected to yield deep insight into mammalian developmental processes and the emergence of effective preventive and/or therapeutic strategies. - Provides busy clinical and basic science researchers a one-stop overview and synthesis of the latest research findings and contemporary thought in the area - Allows researchers to compare and contrast disease models and also to learn about what models have been developed for large-scale distribution - Allows researchers to evaluate basic differences in mouse and human biology and propose alternate pathways and possible gene interactions of the disease
- Published
- 2008
159. Myosins : A Superfamily of Molecular Motors
- Author
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Lynne M. Coluccio and Lynne M. Coluccio
- Subjects
- Proteins, Polymers, Hydrolases, Enzymes, Adenosine triphosphatase, Microfilament proteins, Myosin, Muscle proteins, Cytoskeletal proteins, Biopolymers
- Abstract
Few would have predicted 20 years ago that myosins constitute a superfamily with at least two-dozen classes and that these molecular motors are involved in a multitude of intracellular activities including cell division, cell movement, intracellular transport and signal transduction. Application of state-of-the-art cellular and molecular biological, structural biological, genetic, biochemical and biophysical techniques has provided and continues to provide critical information regarding the structure–function relationship; and the cellular roles of various myosins in organisms as diverse as protozoa, yeast, plants and higher animals. The association of myosins with diseases including neurological disorders, immu- deficiencies, cardiomyopathies, hearing and vision loss testify to the importance of understanding the biochemical properties and cellular roles of myosins. The 16 chapters in this volume summarize the tremendous progress made in studying members of the myosin superfamily in recent years and offer critical insight into what future research will yield. I would like to express my sincere gratitude to the authors of this volume. It was a pleasure to work with each of you and I thank you for the considerable efforts in making this international endeavor possible. I also thank John Trinick from the University of Leeds, UK, for the elegant montage of images of single molecules of myosins on the cover, which beautifully shows the structures of some of these amazing molecules. The able assistance of Marlies Vlot from Springer and Indumadhi Srinivasan from Integra Software Services for production of the book is greatly appreciated.
- Published
- 2008
160. Gale Encyclopedia of Science
- Author
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Lerner, Brenda Wilmoth, Lerner, K. Lee, Lerner, Brenda Wilmoth, and Lerner, K. Lee
- Subjects
- Science--Encyclopedias
- Abstract
Designed for high-school students and lay adults, this collection of entries covers major areas of science including: biology, genetics, microbiology, astronomy, chemistry, physics, engineering, technology, geology, weather, archaeology, psychology, mathematics, and medicine, and provides readers with a wide range of up-to-date, relevant, and accurate information.
- Published
- 2004
161. Defective migration of neuroendocrine GnRH cells in human arrhinencephalic conditions
- Author
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Teixeira, Luis, Guimiot, Fabien, Dode, Catherine, Fallet-Bianco, Catherine, Millar, Robert P., Delezoide, Anne-Lise, and Hardelin, Jean-Pierre
- Subjects
Neurohormones -- Physiological aspects -- Genetic aspects -- Research ,Cell migration -- Physiological aspects -- Research -- Genetic aspects ,Gonadotropin releasing hormone -- Physiological aspects -- Genetic aspects -- Research ,Health care industry - Abstract
Patients with Kallmann syndrome (KS) have hypogonadotropic hypogonadism caused by a deficiency of gonadotropin-releasing hormone (GnRH) and a defective sense of smell related to olfactory bulb aplasia. Based on the findings in a fetus affected by the X chromosome-linked form of the disease, it has been suggested that hypogonadism in KS results from the failed embryonic migration of neuroendocrine GnRH1 cells from the nasal epithelium to the forebrain. We asked whether this singular observation might extend to other developmental disorders that also include arrhinencephaly. We therefore studied the location of GnRH1 cells in fetuses affected by different arrhinencephalic disorders, specifically X-linked KS, CHARGE syndrome, trisomy 13, and trisomy 18, using immunohistochemistry. Few or no neuroendocrine GnRH1 cells were detected in the preoptic and hypothalamic regions of all arrhinencephalic fetuses, whereas large numbers of these cells were present in control fetuses. In all arrhinencephalic fetuses, many GnRH1 cells were present in the frontonasal region, the first part of their migratory path, as were interrupted olfactory nerve fibers that formed bilateral neuromas. Our findings define a pathological sequence whereby a lack of migration of neuroendocrine GnRH cells stems from the primary embryonic failure of peripheral olfactory structures. This can occur either alone, as in isolated KS, or as part of a pleiotropic disease, such as CHARGE syndrome, trisomy 13, and trisomy 18., Introduction Gonadotropin-releasing hormone (GnRH) controls the pttuitarygonadal axis (1). Embrvological studies in various vertebrate species have shown that neuroendocrine GnRH cells (i.e., GnRH1-synthesizing neurons) migrate from the medial part of [...]
- Published
- 2010
- Full Text
- View/download PDF
162. Stereocilin-deficient mice reveal the origin of cochlear waveform distortions
- Author
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Verpy, Elisabeth, Weil, Dominique, Leibovici, Michel, Goodyear, Richard J., Hamard, Ghislaine, Houdon, Carine, Lefevre, Gaelle M., Hardelin, Jean-Pierre, Richardson, Guy P., Avan, Paul, and Petit, Christine
- Subjects
Cochlea -- Medical examination -- Abnormalities ,Environmental issues ,Science and technology ,Zoology and wildlife conservation ,Medical examination ,Abnormalities - Abstract
Although the cochlea is an amplifier and a remarkably sensitive and finely tuned detector of sounds, it also produces conspicuous mechanical and electrical waveform distortions (1). These distortions reflect nonlinear [...]
- Published
- 2008
163. Genetic Hearing Impairment : Its Clinical Presentations
- Author
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Cremers, C.W.R.J, Smith, R.J.H, Cremers, C.W.R.J, and Smith, R.J.H
- Subjects
- Ear--Abnormalities--Genetic aspects, Deafness--Genetic aspects
- Abstract
A decade of innovative findings in the research of molecular biology of hearing and deafness is reflected in this volume. The genetic causes for many types of syndromic and non-syndromic deafness are identified and genotypic-phenotypic relationships are explored. Although the type and degree of deafness caused by mutations in different genes significantly overlap, relatively unique age-related audiometric profiles are also emerging. For example, the audioprofile of DFNA1 and DFNA6-14 is a low-frequency sensorineural hearing loss; with DFNA8-14 it is a mid-frequency sensorineural hearing loss, and with DFNA2, DFNA5 and DFNA20-26 it is a high-frequency progressive hearing loss. Recognizing such audioprofiles can facilitate well-guided decision-making in clinical practice and can direct genetic testing for deafness. With an accurate genetic diagnosis, prognostic information can be provided to patients and their families. In the future, gene-specific habilitation options may also become available. To keep up to date with new clinical standards of diagnosing genetic hearing impairment, this book is indispensable reading to otorhinolaryngologists and audiologists.
- Published
- 2002
164. Hypothalamic-Pituitary Development : Genetic and Clinical Aspects
- Author
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Rappaport, R., Amselem, S., Rappaport, R., and Amselem, S.
- Abstract
In recent years dramatic progress has been made in understanding the pathophysiology of pituitary diseases by a combination of experimental studies, molecular genetics and clinical research. This book presents an updated overview of normal and pathological hypothalamic-pituitary development. Several chapters include experimental data and describe brain and facial defects associated with various conditions of pituitary insufficiency. A major part is devoted to the still increasing number of molecular and genetic defects which are responsible for various clinical presentations of pituitary insufficiency: diseases due to genetic defects of growth hormone, TSH, gonadotropins and corticotropin secretion are extensively described. These diseases present as metabolic (diabetes insipidus and adrenal insufficiency), growth and reproductive (including puberty) disorders. A distinct chapter emphasizes the contribution of a multidisciplinary comprehensive approach including the most recent molecular and genetic tools. Finally in most chapters an effort was made to address phenotypic and genotypic presentations in affected patients including valuable information provided by magnetic resonance imaging of the pituitary and brain. This book will help endocrinologists and pediatricians by providing unique models of genetic and developmental defects of the pituitary region which bear ultimate consequences on metabolic control, growth and reproduction.
- Published
- 2001
165. Genetics in Otorhinolaryngology
- Author
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Kitamura, K., Steel, K.P, Kitamura, K., and Steel, K.P
- Subjects
- Otolaryngology--Genetic aspects
- Abstract
How can genetics be useful to general otorhinolaryngologists and their patients? This book summarizes the most recent information on genetic diseases, including deafness and head-and-neck cancer, that is relevant to clinical practice, particularly with reference to accurate genetic counseling. The first part of the volume presents a basic and general review of genetics. Up-to-date information on deafness genes is given and the mouse model for hearing impairment is thoroughly described. The application of molecular analysis of head-and-neck carcinoma has been one of the fundamental breakthroughs in understanding the cell biology of the carcinoma. Two chapters are devoted to the discussion of tumor suppressor genes and oncogenes. This book is highly recommended since genetics, particularly molecular genetics, is still an unfamiliar subject to otorhinolaryngologists.Yet there is a constant need to be alert to the possibility of diagnosing hereditary disorders and to obtain genetic consultation for a complete evaluation. A comprehensive list of references is given for those who wish to find more detailed information.
- Published
- 2000
166. Studies from Pasteur Institute Describe New Findings in Science (Interaction of protocadherin-15 with the scaffold protein whirlin supports its anchoring of hair-bundle lateral links in cochlear hair cells)
- Subjects
Health ,Science and technology - Abstract
2020 OCT 23 (NewsRx) -- By a News Reporter-Staff News Editor at Science Letter -- New research on science is the subject of a new report. According to news reporting [...]
- Published
- 2020
167. Molecular genetics of hereditary deafness reviewed
- Subjects
Health ,Obesity ,Otolaryngology - Abstract
2004 JUN 5 - (NewsRx.com & NewsRx.net) -- Researchers review the molecular genetics of hereditary deafness in a recent issue of MS - Medecine Sciences. According to a study from [...]
- Published
- 2004
168. Molecular genetics of hereditary deafness reviewed
- Subjects
Otolaryngology ,Health ,Pharmaceuticals and cosmetics industries - Abstract
2004 JUN 4 - (NewsRx.com & NewsRx.net) -- Researchers review the molecular genetics of hereditary deafness in a recent issue of MS - Medecine Sciences. According to a study from [...]
- Published
- 2004
169. Molecular genetics of hereditary deafness reviewed
- Subjects
Otolaryngology - Abstract
2004 MAY 31 - (NewsRx.com & NewsRx.net) -- Researchers review the molecular genetics of hereditary deafness in a recent issue of MS - Medecine Sciences. According to a study from [...]
- Published
- 2004
170. Molecular genetics of hereditary deafness reviewed
- Subjects
Otolaryngology ,Health ,Pharmaceuticals and cosmetics industries - Abstract
2004 MAY 21 - (NewsRx.com & NewsRx.net) -- Researchers review the molecular genetics of hereditary deafness in a recent issue of MS - Medecine Sciences. According to a study from [...]
- Published
- 2004
171. Molecular genetics of hereditary deafness reviewed
- Subjects
Otolaryngology ,Biotechnology industry ,Pharmaceuticals and cosmetics industries - Abstract
2004 MAY 19 - (NewsRx.com & NewsRx.net) -- Researchers review the molecular genetics of hereditary deafness in a recent issue of MS - Medecine Sciences. According to a study from [...]
- Published
- 2004
172. Molecular genetics of hereditary deafness reviewed
- Subjects
Otolaryngology - Abstract
2004 MAY 17 - (NewsRx.com & NewsRx.net) -- Researchers review the molecular genetics of hereditary deafness in a recent issue of MS - Medecine Sciences. According to a study from [...]
- Published
- 2004
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