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Book
Oocyte Maturation and Fertilization : A Long History for a Short Event
Author:
ISBN: 160805182X 1608050629 9781608051823 Year: 2011 Publisher: [Place of publication not identified] : Bentham Science Publishers,

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Abstract

Events of reproduction occurring from meiotic resumption of the immature oocyte up to its exit from the second meiotic block following activation will be revealed. Morphological modifications of the oocyte during maturation will be related to signal transduction mechanisms involving primary or secondary messengers. A detailed view will be addressed to genetic and epigenetic control of oocyte maturation. At fertilization, reciprocal gamete activation and novel knowledge related to sperm factor and cascade mechanisms occurring in the oocyte will be focused. A detailed description of ion currents occurring during fertilization will depict another point of view of oocyte activation mechanisms, further supporting for their complexity.

Keywords

Physiology.


Periodical
Physiological reports.
Authors: ---
Year: 2013 Publisher: [Malden MA] : Published by Wiley Periodicals, Inc. on behalf of the American Physiological Society and the Physiological Society,

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Periodical
Frontiers in physiology.
Year: 2010 Publisher: Lausanne : Frontiers Research Foundation

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Book
Seed Dormancy and Germination
Authors: ---
ISBN: 178984861X 1839684542 1789848601 Year: 2020 Publisher: IntechOpen

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Seed dormancy and germination are critical processes for the development of plants. Seed dormancy allows seeds to overcome harsh periods of seedling establishment, and is also important for plant agriculture and crop yield. Several processes are involved in the induction of dormancy and in the shift from the dormant to the germinating state, and hormones and regulatory genetic networks are among the critical factors driving these complex processes. Germination can be prevented by different factors leading to seed dormancy, which is highly dependent on environmental cues. During and after germination, early seedling growth is sustained by catabolism of stored reserves (proteins, lipids, or starch) accumulated during seed maturation, supporting cell morphogenesis, chloroplast development, and root growth until photo-auxotrophic growth can be resumed.


Book
Phytochemicals : Isolation, Characterisation and Role in Human Health
Authors: --- ---
ISBN: 9535154060 9535121707 Year: 2015 Publisher: IntechOpen

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Global dietary recommendations emphasize the consumption of plant-based foods for the prevention and management of chronic diseases. Plants contain many biologically active compounds referred to as phytochemicals or functional ingredients. These compounds play an important role in human health. Prior to establishing the safety and health benefits of these compounds, they must first be isolated, purified, and their physico-chemical properties established. Once identified, their mechanisms of actions are studied. The chapters are arranged in the order from isolation, purification and identification to in vivo and clinical studies, there by covering not only the analytical procedures used but also their nutraceutical and therapeutic properties.


Book
Insights from Animal Reproduction
Author:
ISBN: 9535172794 9535122681 Year: 2016 Publisher: [Rijeka, Croatia] : IntechOpen,

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Book
Neuroscience : Dealing With Frontiers
Author:
ISBN: 9535152416 9535102079 Year: 2012 Publisher: IntechOpen

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The Neuronal Doctrine recently reached its 100th year and together with the development of psychopharmacology by the middle of 20th century promoted spectacular developments in the knowledge of the biological bases of behavior. The overwhelming amount of data accumulated, forced the division of neuroscience into several subdisciplines, but this division needs to dissolve in the 21st century and focus on specific processes that involve diverse methodological and theoretical approaches. The chapters contained in this book illustrate that neuroscience converges in the search for sound answers to several questions, including the pathways followed by cells, how individuals communicate with each other, inflammation, learning and memory, the development of drug dependence, and approaches to explaining the processes that underlie two highly incapacitating chronic degenerative illnesses.


Book
Seed Biology Updates
Author:
Year: 2022 Publisher: London : IntechOpen,

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Abiotic stresses negatively affect crop production and thus threaten global food security. To confront this challenge, it is important to understand the physiological processes and functional cues of seeds, particularly in the field of seed development (seed filling), and its influence on seed dormancy and germination. This book presents a comprehensive overview of seed physiology and the effects of stressors such as salinity, drought, and high temperature. It also discusses the genetic mechanisms and biochemical and physiological cues that govern seed filling, seed development features under stress environments, seed dormancy and germination, and agronomic management to help crops develop resilience to climate change.

Keywords

Seeds --- Physiology.


Book
Držení těla a funkční stav pohybového aparátu u dětí ve věku 6-8 let : případová studie
Author:
Year: 2022 Publisher: Brno : Masaryk University Press,

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Title in English: Posture and muscle imbalances in children aged 6-8 years: case study The monograph focuses on the posture of children aged 6-8, specifically on the period before they enter the primary school and on the first two years of schooling. In six case studies, we focus on the quality of posture, the functional state of selected muscles and muscle groups of the monitored children and their physical activity regime. In order to examine the musculoskeletal system, we use visual methods and functional muscle test by Janda, and we also use observation, interview, questionnaire survey and other methods. The findings of the original research provide detailed knowledge regarding posture, the state of the musculoskeletal system and the locomotor regime of children at school and outside, which partly differ from other authors' findings. Monografie se zaměřuje na držení těla dětí ve věku 6-8 let, konkrétně na období těsně před nástupem do základní školy a v prvních dvou ročnících školní docházky. V šesti případových studiích se zaměřujeme na kvalitu držení těla, funkční stav vybraných svalů a svalových skupin sledovaných dětí a jejich pohybový režim. K vyšetření podpůrně pohybového systému využíváme pohledových metod a funkčního svalového testu podle Jandy, a dále používáme pozorování, rozhovor, dotazníkové šetření a další metody. Výsledky původního výzkumu přinášejí podrobné poznatky o držení těla, stavu pohybového aparátu a o pohybovém režimu dětí ve škole i mimo ni, které se z části odlišují od výsledků jiných autorů.

Keywords

Children --- Physiology.


Book
Dietary Polyphenols and Neuroprotection
Authors: ---
Year: 2022 Publisher: Basel, Switzerland : MDPI - Multidisciplinary Digital Publishing Institute,

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As editors of this book our aim was to collect new data from experienced authors in order to further advance the knowledge on the protective effects of polyphenols' intake, e.g., when included in the human diet, to modulate cellular functions and pathways associated with neurodegenerative diseases.Fruits and vegetables are the richest source of polyphenols in the regular human diet. Most of these molecules possess high antioxidant capacity, as well as several other important activities that can affect human health, among which anti-inflammatory properties and the potential ability to modulate different cell-signalling pathways seem to be the most important. Neurodegenerative diseases are among the main causes of death worldwide and, in most of them like Alzheimer's or Parkinson's, neurodegeneration occurs long before the onset of first symptoms, where a large population of brain neurons are already lost. Besides neurons, glial cells like astrocytes and microglia, are involved in oxidative and neuroinflammatory pathological pathways, making them interesting targets for neuroprotective strategies. Polyphenols are promising candidates for those strategies, either as prophylactic substances or as therapeutic molecules.In this book, several research papers and two reviews explore the chemical properties of naturally occurring polyphenols and some new possibilities for the therapeutical and/or prophylactic roles of these molecules on neurodegeneration and neurodegenerative diseases.

Keywords

Brain --- Physiology.

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