scholarly journals THE EXPERIMENTAL PRODUCTION OF NECROSIS OF THE LIVER IN THE GUINEA PIG

1914 ◽  
Vol 20 (2) ◽  
pp. 169-179 ◽  
Author(s):  
Moyer S. Fleisher ◽  
Leo Loeb
Keyword(s):  
Guinea Pig ◽  
Intravenous Injection ◽  
Liver Cells ◽  
Gastric Ulcers ◽  
Toxic Substances ◽  
Experimental Production ◽  
Mechanical Factors

Through the intravenous injection of various substances differing very much in character, multiple necrosis can be produced in the liver of the guinea pig. In the mouse the effect of these substances is absent or much less marked. Different substances seem to differ, however, in their power to produce necrosis. In control animals necrosis in the liver is much more rare. It is found especially in animals subjected to various injurious influences. The necrotic areas are usually situated between the portal and central areas of the liver acini. Their development is not due to thromboses interfering with the circulation in certain areas of the liver. They are probably due to a weakening of the circulation in the liver or to interference with the metabolism of the cells as a result of the injection of foreign substances. Mechanical factors (pressure on the liver cells) may have an additional effect. This necrosis may be compared etiologically to the acute gastric ulcers which can be produced through a great variety of toxic substances in the guinea pig.

SPECIES DIFFERENCES IN THE DEOXYRIBONUCLEIC AND RIBONUCLEIC ACID CONTENTS OF LIVERS OF NON-PREGNANT AND PREGNANT MICE, GUINEA-PIGS AND CATS

1953 ◽  
Vol 9 (1) ◽  
pp. 45-51 ◽  
Author(s):  
ROSA M. CAMPBELL ◽  
H. W. KOSTERLITZ
Keyword(s):  
Guinea Pig ◽  
Protein Content ◽  
Liver Cell ◽  
Ribonucleic Acid ◽  
Guinea Pigs ◽  
Deoxyribonucleic Acid ◽  
Species Differences ◽  
Liver Cells ◽  
Maternal Liver ◽  
Pregnant Mice

1. The protein content of liver cells is almost independent of the size of the animal (mice, cats and previous results on rats, Campbell & Kosterlitz [1949]), and varies with the amount of protein eaten. 2. As has already been shown for rats, the ribonucleic acid ('RNA') content of the liver cells of non-pregnant mice, guinea-pigs and cats varies directly with the protein content of the cells. For a given protein content the mouse and rat have more RNA than the guinea-pig and cat. 3. During pregnancy there is a rise of the deoxyribonucleic acid ('DNA') content of the livers and in the protein content of the liver cells of mice (and rats), but not of guinea-pigs. 4. An excess of RNA over that predicted from the protein content of the liver cell has previously been found for the rat during pregnancy, and ascribed to the action of a placental factor on the maternal liver. A similar excess of RNA has now been observed in the mouse and, to a less extent, in the guinea-pig. It appears to be absent in the cat. 5. Possible causes of some of these species differences are considered.

scholarly journals STUDIES ON THE EFFECT OF CERTAIN TOXIC SUBSTANCES IN BACTERIAL CULTURES ON THE MOVEMENT OF THE INTESTINES

1926 ◽  
Vol 43 (6) ◽  
pp. 785-795 ◽  
Author(s):  
E. E. Ecker ◽  
A. Rademaekers
Keyword(s):  
Intravenous Injection ◽  
Toxic Substances ◽  
Propulsive Efficiency ◽  
Spasmodic Contraction ◽  
Strong Stimulation ◽  
Small Intestines ◽  
Slight Rise ◽  
Longitudinal Muscles ◽  
Stimulation Of

Following intravenous injection, filtrates of young cultures of B. paratyphosus B often produce marked diarrhea in rabbits. A study was made of the effect of these toxic filtrates on the motility of the small intestines of the rabbit. The observations were made on a segment of the small intestines in situ, and in the living animal. It was found that an immediate slight rise of tone of the longitudinal muscles occurred following intravenous injection of sterile broth. The same rise was noted after the injection of the toxic filtrate; but with these it was followed later (10 minutes elapsing at least) by a very strong but gradual rise of the diastolic and systolic tone, i.e., by spasmodic contraction of the intestinal muscle, which persisted at times for as long as 2 hours. In order to record simultaneously the effect on the longitudinal and circular muscles, and the propulsive efficiency of the segment the Sollmann and Rademaekers modification of Baur's technique was employed. This arrangement showed that the stimulation of the longitudinal muscles is accompanied by a similarly strong stimulation of the circular muscles, by peristalsis, and therefore by a greatly increased propulsion of intestinal contents which was sufficient to overcome the inhibition that usually occurs after preparation of the animal. With this arrangement an instance of peristaltic spasm was also noted. Broth alone failed to produce the phenomenon. Isotonic magnesium chloride or sulfate added to the bath relaxed the muscles again. Animals under deep urethane anesthesia did not show the diarrhea occurring in the intact controls, but sometimes exhibited it after the effect of the anesthetic had disappeared. So far no effects have been observed on the isolated strip (Magnus method), and further studies are being made to localize the effect, to neutralize it with a specific antiserum, and to observe the effect of filtrates of other members of the bacterial group including the dysentery bacilli.

To the treatment of gastric ulcers

1927 ◽  
Vol 23 (9) ◽  
pp. 965-965
Author(s):  
E. Board
Keyword(s):  
Intravenous Injection ◽  
Intestinal Tract ◽  
Gastric Ulcers ◽  
Sugar Solution ◽  
Rapid Healing

A prerequisite for rapid healing of gastric ulcers is complete rest for both the stomach itself and the upper intestinal tract. To achieve this, Tillmann recommends feeding the patient exclusively by intravenous injection of grape sugar solution (5.00 per 1000.0 saline) for 10-12 days.

Experimental production of gastric ulcers by vessel ligation

1968 ◽  
Vol 3 (4) ◽  
pp. 290-291
Author(s):  
T. Maki ◽  
T. Shiratori ◽  
M. Tsukamoto ◽  
N. Harata ◽  
T. Hatafuku ◽  
...  
Keyword(s):  
Gastric Ulcers ◽  
Experimental Production ◽  
Vessel Ligation

scholarly journals Afibrinogenemia and Thrombocytopenia in Guinea Pigs Following Injection of Echis Colorata Venom

Blood ◽  
1962 ◽  
Vol 20 (6) ◽  
pp. 735-749 ◽  
Author(s):  
JADWIGA RECHNIC ◽  
POLA TRACHTENBERG ◽  
JULIAN CASPER ◽  
CHAJA MOROZ ◽  
ANDRÉ DE VRIES
Keyword(s):  
Guinea Pig ◽  
Intravenous Injection ◽  
Guinea Pigs ◽  
Procoagulant Activity ◽  
Rabbit Serum ◽  
Factor V ◽  
Factor V Deficiency ◽  
Fibrinogenolytic Activity ◽  
Fraction I ◽  
Lethal Doses

Abstract Intravenous injection into the guinea pig of lethal doses of Echis colorata venom or of each of its two chromatographic fractions, separately, caused hemorrhage, afibrinogenemia, factor V deficiency and thrombocytopenia. Sublethal venom doses caused afibrinogenemia, factor V deficiency and thrombocytopenia in the absence of hemorrhage. Early intravascular clotting was observed following injection of high lethal doses of both whole venom and of procoagulant-containing fraction II, but not of fraction I which was devoid of procoagulant activity. The afibrinogenemia produced by fraction I was due to its fibrinogenolysin, whereas the afibrinogenemia produced by fraction II, which also had fibrinogenolytic activity, was due chiefly to its procoagulant. Anti-Echis colorata venom rabbit serum inhibited the fibrinogenolytic, the procoagulant and the thrombocytopenic activities of the venom.

Different biotransformation of morphine in isolated liver cells from guinea pig and rat

1993 ◽  
Vol 46 (6) ◽  
pp. 961-968 ◽  
Author(s):  
Tor A. Aasmundstad ◽  
Åse Ripel ◽  
Egil Bodd ◽  
Anders Bjørneboe ◽  
Jørg Mørland
Keyword(s):  
Guinea Pig ◽  
Liver Cells ◽  
Isolated Liver Cells ◽  
Isolated Liver

scholarly journals Passive Anaphylaxis following the immediate injection of Antigen after Antiserum

1936 ◽  
Vol 36 (4) ◽  
pp. 570-587 ◽  
Author(s):  
H. R. Dean ◽  
R. Williamson ◽  
G. L. Taylor
Keyword(s):  
Guinea Pig ◽  
Intravenous Injection ◽  
Anaphylactic Shock ◽  
The Body ◽  
Post Mortem ◽  
Abdominal Symptoms ◽  
Respiratory Embarrassment

1. Our experiments show that an intravenous injection of antigen immediately after an intravenous injection of antiserum in the guinea-pig were followed by:(a) Acute shock and death within 5 min. The signs and post-mortem appearances were indistinguishable from acute anaphylactic shock as typically seen in the guinea-pig. Some control animals injected with antiserum only died in a way similar to those which received both antiserum and antigen. These are discussed in detail in the body of the paper.(b) Delayed shock and death some hours later. The post-mortem appearances were those of gastro-intestinal congestion and haemorrhage resembling the changes seen in dogs dying of anaphylactic shock. Such changes were never seen in the control animals.(c) Recovery. Practically all the animals which recovered had symptoms of respiratory embarrassment immediately following the injections of anti-serum and antigen and many had later symptoms of abdominal shock. The animals which were given an injection of antiserum only rarely had any symptoms and never abdominal symptoms.2. It is necessary to test the antisera used by control inoculation since some antisera are toxic.

Sign in / Sign up

Export Citation Format

Share Document