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  • Book
    Jatin P. Shah, Snehal G. Patel, Bhuvanesh Singh, Richard J. Wong.
    Contents:
    Introduction
    Basic principles of head and neck surgery
    Scalp and skin
    Eyelids and orbit
    Nasal cavity and paranasal sinuses
    Skull base
    Lips
    Oral cavity
    Pharynx and esophagus
    Larynx and trachea
    Cervical lymph nodes
    Thyroid and parathyroid glands
    Salivary glands
    Neurogenic tumors and paragangliomas
    Soft tissue tumors
    Bone tumors, including odontogenic lesions
    Reconstructive surgery
    Oncologic dentistry, maxillofacial prosthetics, and implants
    Radiation therapy
    Systemic therapy.
    Digital Access ClinicalKey 2020
  • Article
    Konings WN, Rosenberg H.
    Biochim Biophys Acta. 1978 Apr 04;508(2):370-8.
    Escherichia coli strain AN710 possesses only the PIT system for phosphate transport. Membrane vesicles from this strain, which contain phosphate internally, perform exchange and active transport of phosphate. The energy for active transport is supplied by the respiratory chain with ascorbate phenazine methosulphate as electron donor. To a lesser extent also the oxidation of D-lactate energizes phosphate transport; the oxidation of succinate is only marginally effective. Phosphate transport is driven by the proton-motive force and in particular by the pH gradient across the membrane. This view is supported by the observation that phosphate transport is stimulated by valinomycin, inhibited by nigericin and abolished by the uncoupler carbonyl cyanide m-chlorophenylhydrazone. Neither inhibitor affects phosphate exchange. The phosphate analogue arsenate inhibits both the exchange reaction and active transport. Both processes are stimulated by K+ and Mg2+, the highest activities being observed with both ions present. Membrane vesicles have also been isolated from Escherichia coli K10, a strain which possesses only a functional PST phosphate transport system. These vesicles perform neither exchange nor active transport of phosphate, although active transport of amino acids is observed in the presence of ascorbate-phenazine methosulphate or D-lactate.
    Digital Access Access Options