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Herman P G - - 1974
Twenty-five New Zealand white rabbits were placed on an atherogenic diet for 7 to 160 days to induce xanthomatosis. The microvascular morphology of the popliteal lymph node was studied throughout the development of xanthomatous replacement. The lymph nodes were serially sectioned and studied histologically and by microangiography. In animals which ...
Herman P G - - 1972
Microangiography performed after total blood replacement with contrast material provided complete visualization of the vascular structures of the lymph node. Starting of the 2nd day, there is capillary redistribution throughout the cortex of the lymph node. The previously rather avascular nodules dissolve, and the cortical lymphoid tissue becomes uniformly vascular. ...
Case R M - - 1972
1. Intra-arterial injection or infusion of prostaglandins E(1) and E(2) into anaesthetized cats caused a fall in arterial blood pressure, a reduction in pancreatic blood flow and an inhibition of secretin-stimulated pancreatic electrolyte secretion. In some experiments these effects were preceded by a transient increase in blood flow and secretion.2. ...
Augier D - - 1972
1. Stimulation by a continuous intra-arterial infusion of secretin caused a marked vasodilatation in the pancreato-duodenal preparation or in the isolated pancreas perfused with whole heparinized blood. There was no difference in the vasomotor effects of two unequally purified preparations of secretin. The fact that the vasodilatation was still observed ...
Windmueller H G - - 1972
An apparatus and procedure are described for investigating fat transport and lipoprotein biosynthesis in isolated, lymph-cannulated rat intestine perfused with blood under physiological conditions. The small bowel, cecum, proximal half of the colon, and attached mesentery were removed into a tissue bath and perfused vascularly in a recycling system free ...
Fawcett A N - - 1971
Prolonged near maximal pancreatic secretion in conscious dogs has been found to result in a metabolic acidosis. This is mild and is accompanied by respiratory and other forms of compensation. Measurements of blood bicarbonate or base-excess changes cannot be used to estimate pancreatic bicarbonate output. The acidosis caused by pancreatic ...
Barlow T E - - 1971
1. Adrenaline and noradrenaline cause a biphasic change in the transverse electrical conductance across the cat pancreas. After a latent period of from 5 to 30 sec a phase of decreased conductance lasting about 30 sec occurs which gives way to a phase of increased conductance lasting from 5 to ...
Fawcett A N - - 1970
The response of the pancreatic bicarbonate secretory mechanism to secretin and the relationship between bicarbonate concentration and flow rate in pancreatic juice have been re-examined following reports describing decreasing levels of bicarbonate concentration at high flow rates. Both anaesthetized and chronic fistula dogs were used. The results show that when ...
Murakami T - - 1997
Scanning electron microscopy of vascular casts prepared by arterial injections of intentionally reduced amounts of resin showed that in the rat pancreas, the casting medium fills blood capillaries in the endocrine islets more promptly than those in the exocrine lobules and secretory ducts. Furthermore, the exocrine lobules containing endocrine islets ...
Goodhead B - - 1970
An indicator fractionation technique using radioactive rubidium has been used to measure pancreatic blood flow after infusions of secretin, pancreozymin, urecholine, and pentagastrin. Secretin resulted in the production of a large volume of low viscous pancreatic juice and was associated with an increase in the cardiac output. Duodenal and pancreatic ...
Weaver C - - 1997
The pancreas has a complex vasculature which comprises both exocrine and endocrine structures. Copper deficiency induces highly selective acinar cell degeneration and progressive noninflammatory lipomatosis in pancreas while Langerhans islets, ducts, and nerves remain unaffected. Pancreatic vasculature was examined in rats that had dietary copper deficiency to characterize changes in ...
Wayland H - - 1997
The pancreas is involved in two major bodily functions: production of hormones involved in the control of carbohydrate metabolism and the production of enzymes essential to digestion. Pancreatic function is mediated by both neurological and humoral control. The major pathway for humoral control is through the circulatory system, the level ...
Ditzel J - - 1977
Oxyhemoglobin dissociation curves were performed from blood of subjects with pancreatitis associated with Type V and Type I hyperlipoproteinemia. The hemoglobin-oxygen affininty was markedly increased with P50 varying from 22.3 to 17.7 mmHg. As the hyperlipoproteinemia subsided the clinical and laboratory signs of pancreatic affection disappeared. The increased hemoglobin-oxygen affinity ...
Humphreys P W - - 1967
1. Lymph from the lungs of lambs and sheep was found to enter both the right lymph duct and the thoracic duct. Right lymph duct flow was collected by constructing a venous sac, the venous tributaries of which were ligated but which the right lymph duct entered; thoracic duct flow ...
Daniel P M - - 1967
1. Baboons and cats were given radioactive iodine and, at varying times after the injection, samples of thyroid and non-thyroid lymph and of thyroid venous and peripheral venous blood were collected. The radioactive material in these samples was separated by paper chromatography or by differential precipitation and solvent extraction into ...
Daniel P M - - 1966
1. Samples of thyroid and non-thyroid lymph and of thyroid and peripheral venous blood were obtained from primates and cats that had previously been given radioactive iodine. The distribution of the organic radioiodine between the protein and non-protein fractions in these samples was determined. 2. The proportion of the organic ...
Hartmann P E - - 1966
1. A technique is described for the collection of thoracic duct lymph from the grazing cow.2. The effects of continuing drainage of lymph were overcome by establishing an exteriorized lymphatico-venous shunt from which lymph and blood samples were obtained when required. The shunt functioned satisfactorily for periods of 10, 14 ...
MILLS I H - - 1958
Aldosterone in adrenal venous blood of dogs is increased by constriction and decreased by release of constriction of the inferior vena cava. Section of the cervical vagi did not affect the rise of aldosterone but prevented its fall. The receptors for stimuli to increases of aldosterone secretion may not be ...
Parsons R J - - 1938
The ears of rabbits were perfused with defibrinated rabbit's blood in such a way that pulsation could be imparted to the perfusate or withheld from it at will. In the absence of pulsation there was almost no lymph flow, whereas when it was present lymph flow was rapid despite the ...
Drinker C K - - 1935
1. Rabbits injected intravenously with a large dose of a virulent Type III Pneumococcus develop a bacteremia, and within an hour organisms may be cultivated from the thoracic duct lymph. The rapidity with which entrance into the lymph occurs appears to be correlated with the size of the dose injected. ...
Barron E S - - 1928
1. After experimental ligation of the bile ducts in dogs, two distinct processes are clearly manifested: first, the accumulation of the normally circulating bilirubin in the blood with its characteristic indirect Van den Bergh reaction for a period of several hours, and second, the subsequent appearance of the bile bilirubin ...
Elman R - - 1927
It has been possible by appropriate intubation of the main pancreatic duct of the dog to collect the total external secretion of the pancreas under sterile conditions. When all of the secretion is thus collected exitus occurs in a characteristic way in about a week with anorexia, gastric irritability, vomiting ...
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