J N Maina

Summary

Affiliation: University of the Witwatersrand
Country: South Africa

Publications

  1. ncbi request reprint A systematic study of the development of the airway (bronchial) system of the avian lung from days 3 to 26 of embryogenesis: a transmission electron microscopic study on the domestic fowl, Gallus gallus variant domesticus
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, 7 York Road, Parktown 2193, Johannesburg, South Africa
    Tissue Cell 35:375-91. 2003
  2. ncbi request reprint Some recent advances on the study and understanding of the functional design of the avian lung: morphological and morphometric perspectives
    J N Maina
    Department of Anatomical Sciences, The Medical School, The University of the Witwatersrand, Parktown, Johannesburg, South Africa
    Biol Rev Camb Philos Soc 77:97-152. 2002
  3. pmc Structure, function and evolution of the gas exchangers: comparative perspectives
    J N Maina
    Department of Anatomical Sciences, The University of the Witwatersrand, Parktown, Johannesburg, South Africa
    J Anat 201:281-304. 2002
  4. ncbi request reprint Fundamental structural aspects and features in the bioengineering of the gas exchangers: comparative perspectives
    J N Maina
    Adv Anat Embryol Cell Biol 163:III-XII, 1-108. 2002
  5. pmc Expression of fibroblast growth factor-2 (FGF-2) in early stages (days 3-11) of the development of the avian lung, Gallus gallus variant domesticus: an immunocytochemical study
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, Johannesburg, South Africa
    J Anat 203:505-12. 2003
  6. ncbi request reprint Developmental dynamics of the bronchial (airway) and air sac systems of the avian respiratory system from day 3 to day 26 of life: a scanning electron microscopic study of the domestic fowl, Gallus gallus variant domesticus
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa
    Anat Embryol (Berl) 207:119-34. 2003
  7. ncbi request reprint Spectacularly robust! Tensegrity principle explains the mechanical strength of the avian lung
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Parktown 2193, Johannesburg, South Africa
    Respir Physiol Neurobiol 155:1-10. 2007
  8. ncbi request reprint Systematic analysis of hematopoietic, vasculogenetic, and angiogenetic phases in the developing embryonic avian lung, Gallus gallus variant domesticus
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, 7 York Road, Parktown 2193, Johannesburg, South Africa
    Tissue Cell 36:307-22. 2004
  9. ncbi request reprint Morphogenesis of the laminated, tripartite cytoarchitectural design of the blood-gas barrier of the avian lung: a systematic electron microscopic study on the domestic fowl, Gallus gallus variant domesticus
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa
    Tissue Cell 36:129-39. 2004
  10. doi request reprint Recent advances into understanding some aspects of the structure and function of mammalian and avian lungs
    J N Maina
    Department of Zoology, University of Johannesburg, Johannesburg, South Africa
    Physiol Biochem Zool 83:792-807. 2010

Detail Information

Publications22

  1. ncbi request reprint A systematic study of the development of the airway (bronchial) system of the avian lung from days 3 to 26 of embryogenesis: a transmission electron microscopic study on the domestic fowl, Gallus gallus variant domesticus
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, 7 York Road, Parktown 2193, Johannesburg, South Africa
    Tissue Cell 35:375-91. 2003
    ..Further studies are necessary to underpin the specific molecular factors and genetic processes that direct the morphogenesis of an exceptionally complex and efficient respiratory organ...
  2. ncbi request reprint Some recent advances on the study and understanding of the functional design of the avian lung: morphological and morphometric perspectives
    J N Maina
    Department of Anatomical Sciences, The Medical School, The University of the Witwatersrand, Parktown, Johannesburg, South Africa
    Biol Rev Camb Philos Soc 77:97-152. 2002
    ..This complex defence inventory may explain the paucity of SMs in the avian lung...
  3. pmc Structure, function and evolution of the gas exchangers: comparative perspectives
    J N Maina
    Department of Anatomical Sciences, The University of the Witwatersrand, Parktown, Johannesburg, South Africa
    J Anat 201:281-304. 2002
    ....
  4. ncbi request reprint Fundamental structural aspects and features in the bioengineering of the gas exchangers: comparative perspectives
    J N Maina
    Adv Anat Embryol Cell Biol 163:III-XII, 1-108. 2002
    ..Modelling, mathematical integration of structural and functional parameters, provides a holistic view of the essence of the design of a gas exchanger...
  5. pmc Expression of fibroblast growth factor-2 (FGF-2) in early stages (days 3-11) of the development of the avian lung, Gallus gallus variant domesticus: an immunocytochemical study
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, Johannesburg, South Africa
    J Anat 203:505-12. 2003
    ..Morphogenetic differences between the avian and the mammalian lungs may explain the existing structural contrarieties...
  6. ncbi request reprint Developmental dynamics of the bronchial (airway) and air sac systems of the avian respiratory system from day 3 to day 26 of life: a scanning electron microscopic study of the domestic fowl, Gallus gallus variant domesticus
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa
    Anat Embryol (Berl) 207:119-34. 2003
    ....
  7. ncbi request reprint Spectacularly robust! Tensegrity principle explains the mechanical strength of the avian lung
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Parktown 2193, Johannesburg, South Africa
    Respir Physiol Neurobiol 155:1-10. 2007
    ....
  8. ncbi request reprint Systematic analysis of hematopoietic, vasculogenetic, and angiogenetic phases in the developing embryonic avian lung, Gallus gallus variant domesticus
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, 7 York Road, Parktown 2193, Johannesburg, South Africa
    Tissue Cell 36:307-22. 2004
    ..The exceptional respiratory efficiency of the avian lung is largely attributable to the geometries (physical interfacing) between the bronchial and vascular elements at different levels of morphological organization...
  9. ncbi request reprint Morphogenesis of the laminated, tripartite cytoarchitectural design of the blood-gas barrier of the avian lung: a systematic electron microscopic study on the domestic fowl, Gallus gallus variant domesticus
    J N Maina
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, 7 York Road, Parktown, 2193 Johannesburg, South Africa
    Tissue Cell 36:129-39. 2004
    ..In sites where air capillaries lie adjacent to each other, epithelial cells contact directly: intercellular matrix is lacking...
  10. doi request reprint Recent advances into understanding some aspects of the structure and function of mammalian and avian lungs
    J N Maina
    Department of Zoology, University of Johannesburg, Johannesburg, South Africa
    Physiol Biochem Zool 83:792-807. 2010
    ..quot;..
  11. pmc Immuno-localization of type-IV collagen in the blood-gas barrier and the epithelial-epithelial cell connections of the avian lung
    S A Jimoh
    School of Anatomical Sciences, University of the Witwatersrand, Johannesburg, South Africa
    Biol Lett 9:20120951. 2013
    ..T-IVc was localized in both the BM and the E-ECCs. As part of an integrated fibroskeletal scaffold on the lung, T-IVc may directly contribute to the strengths of the ACs and the BCs...
  12. ncbi request reprint Comparative respiratory morphology: themes and principles in the design and construction of the gas exchangers
    J N Maina
    Department of Anatomical Sciences, The Medical School, University of Witwatersrand, Park Town, Johannesburg, South Africa
    Anat Rec 261:25-44. 2000
    ..In most cases, the analogy reflects evolutionary convergence in response to corresponding selective pressures rather than common ancestry. Anat Rec (New Anat) 261:25-44, 2000...
  13. ncbi request reprint Functional morphology of the gas-gland cells of the air-bladder of Oreochromis alcalicus grahami (teleostei: cichlidae): an ultrastructural study on a fish adapted to a severe, highly alkaline environment
    J N Maina
    Department of Anatomical Sciences, The Medical School, The University of the Witwatersrand, Johannesburg, South Africa
    Tissue Cell 32:117-32. 2000
    ..This similarity suggests amazing parallel evolutionary adaptation to biophysically corresponding aquatic milieus...
  14. doi request reprint Inspiratory aerodynamic valving occurs in the ostrich, Struthio camelus lung: a computational fluid dynamics study under resting unsteady state inhalation
    J N Maina
    Department of Zoology, University of Johannesburg, Auckland Park 2006, Johannesburg, South Africa
    Respir Physiol Neurobiol 169:262-70. 2009
    ..The incomplete models may be faulty because the velocity/pressure profiles in different parts of the interconnected airways form an integrated functional continuum in which different parts of the system considerably impact on each other...
  15. ncbi request reprint Inspiratory aerodynamic valving in the avian lung: functional morphology of the extrapulmonary primary bronchus
    J N Maina
    Department of Anatomical Sciences, The Medical School, The University of the Witwatersrand, Parktown 2193, Johannesburg, South Africa
    J Exp Biol 203:2865-76. 2000
    ..g. domesticus and C. livia suggest that either the mechanism of production of IAV or its functional efficiency may be different, at least in these two species of birds...
  16. ncbi request reprint A qualitative and quantitative study of the lung of an ostrich, Struthio camelus
    J N Maina
    Department of Anatomical Sciences, The University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
    J Exp Biol 204:2313-30. 2001
    ..The distinctive morphological and morphometric features that seem to occur in the ostrich lung may explain how it achieves and maintains high aerobic capacities and endures long thermal panting without experiencing respiratory alkalosis...
  17. ncbi request reprint Is the sheet-flow design a 'frozen core' (a Bauplan) of the gas exchangers? Comparative functional morphology of the respiratory microvascular systems: illustration of the geometry and rationalization of the fractal properties
    J N Maina
    Department of Anatomical Sciences, The University of the Witwatersrand, 7 York Road, Park Town 2193, Johannesburg, South Africa
    Comp Biochem Physiol A Mol Integr Physiol 126:491-515. 2000
    ..With appropriate corrections for any relevant intertaxa differences, use of similar morphofunctional models in determining the diffusing capacities of various gas exchangers is warranted...
  18. ncbi request reprint What it takes to fly: the structural and functional respiratory refinements in birds and bats
    J N Maina
    Department of Anatomical Sciences, The University of the Witwatersrand, Parktown, Johannesburg 2193, South Africa
    J Exp Biol 203:3045-64. 2000
    ..The attainment of flight is a classic paradigm of the remarkable adaptability inherent in organismal and organic biology for countering selective pressures by initiating elegant morphologies and physiologies...
  19. ncbi request reprint Morphometric characterization of the airway and vascular systems of the lung of the domestic pig, Sus scrofa: comparison of the airway, arterial and venous systems
    J N Maina
    Department of Anatomical Sciences, The University of the Witwatersrand, 7 York Road, Parktown, Johannesburg 2193, South Africa
    Comp Biochem Physiol A Mol Integr Physiol 130:781-98. 2001
    ....
  20. doi request reprint Study of the structure of the air and blood capillaries of the gas exchange tissue of the avian lung by serial section three-dimensional reconstruction
    J D Woodward
    School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, 7 York Road, Parktown 2193, Johannesburg, South Africa
    J Microsc 230:84-93. 2008
    ..The resulting reconstructions could be analysed in order to determine the basis of the functional efficiency and rigidity of the avian lung...
  21. pmc Composite cellular defence stratagem in the avian respiratory system: functional morphology of the free (surface) macrophages and specialized pulmonary epithelia
    L N Nganpiep
    School of Anatomical Sciences, Faculty of Health Sciences, The University of the Witwatersrand, Johannesburg, South Africa
    J Anat 200:499-516. 2002
    ....
  22. ncbi request reprint Minutialization at its extreme best! The underpinnings of the remarkable strengths of the air and the blood capillaries of the avian lung: a conundrum
    J N Maina
    Respir Physiol Neurobiol 159:141-5; author reply 146. 2007