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2.
Orthop Rev (Pavia) ; 2(1): e5, 2010 Mar 20.
Article in English | MEDLINE | ID: mdl-21808700

ABSTRACT

We present a case report of a 45-year old man who sustained a central dislocation of the hip secondary to an insufficiency fracture of the acetabulum. At the time of presentation he was on alendronate therapy for osteoporosis which had been previously investigated. CT scanning of the pelvis was useful for pre-operative planning which confirmed collapse of the femoral head but no discontinuity of the pelvis. The femoral head was morcellized and used as bone graft for the acetabular defect and an uncemented total hip replacement was performed.

4.
J Physiol ; 189(2): 247-60, 1967 Apr.
Article in English | MEDLINE | ID: mdl-6034114

ABSTRACT

1. The electrical properties of the resting and stimulated pancreas have been studied in the anaesthetized cat. There is an inverse relationship between the frequency of applied alternating current and the resistivity and dielectric constant of the resting pancreas. The resistivity is also affected by the fat content of the gland. The impedance locus of the pancreas is similar to that of other tissues.2. On intravenous injection of secretin there is a brief increase, followed by a more marked decrease, in conductance and capacitance of the pancreas. The phase of decreased conductance is related to the flow of pancreatic juice. The decrease in conductance and the flow rate can be characterized by two closely related empirical equations.3. During secretin stimulation the sodium concentration in pancreatic tissue increases, and the potassium concentration falls.4. It is tentatively suggested that the decreased conductance across the secreting gland is mostly due to swelling of the secretory cells and to a minor degree is the result of changes in the composition of the secretion in the pancreatic ducts.5. In the anaesthetized cat the mean half life of the secretory action of secretin is 199 sec.


Subject(s)
Pancreas/physiology , Animals , Cats , Chlorides/analysis , Electric Stimulation , Fats/analysis , Pancreas/analysis , Pancreas/drug effects , Pancreatic Juice/physiology , Potassium/analysis , Secretin/pharmacology , Secretory Rate/physiology , Sodium/analysis
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