Factors affecting gastric secretion in thoracic-duct lymph of dogs

1960 ◽  
Vol 198 (4) ◽  
pp. 721-724 ◽  
Author(s):  
Ivan D. A. Johnston ◽  
Charles F. Code

Thoracic-duct lymph was collected from dogs during various phases of gastric secretion. The lymph samples were injected intravenously into dogs with vagally innervated and denervated pouches while these were secreting at slow rates in response to the continuous intravenous injection of small quantities of histamine. About half the samples inhibited gastric secretion. The rest produced transient stimulation or had no effect. The greatest degree of inhibition occurred when lymph collected immediately after a meal was injected. When fatty lymph was separated into fat and nonfat fractions, the fat-containing portion of lymph stimulated gastric secretion slightly, while the nonfat fraction carried the inhibitory influence when it was present. Systemic reactions were noted in one-third of the animals that had an inhibitory response. The occurrence of stimulatory or inhibitory factors in the lymph did not appear to be related to particular phases of gastric secretion.

1964 ◽  
Vol 207 (3) ◽  
pp. 518-522 ◽  
Author(s):  
S. Chien ◽  
D. G. Sinclair ◽  
R. J. Dellenback ◽  
C. Chang ◽  
B. Peric ◽  
...  

The intravenous injection of Escherichia coli endotoxin (3 mg/kg) into dogs caused an increase in lymph flow from the thoracic duct. The lymph concentrations of macromolecules (dextran with mol. wt. of 250,000, albumin-I131, and endogenous proteins) increased and the lymph-to-plasma ratios approached 1. These results indicate that E. coli endotoxin causes an increase in capillary permeability to both the fluid and the macromolecules in plasma. The increase in capillary permeability for albumin-I131 was greater than that for dextran with mol. wt. of 250,000. Eighty minutes after endotoxin, the lymph flow returned to normal, but albumin-I131 and dextran injected at this time were still transferred into the thoracic duct lymph at enhanced rates.


1968 ◽  
Vol 127 (1) ◽  
pp. 155-168 ◽  
Author(s):  
Irving Goldschneider ◽  
Douglas D. McGregor

The cellular deficit in rats thymectomized at birth is primarily one of circulating small lymphocytes. The lymphocyte deficiency is similar to that induced in adult rats by chronic drainage from a thoracic duct fistula. In both cases, the animals show a reduction of small lymphocytes in peripheral blood, thoracic duct lymph, and in circumscribed areas of lymphoid tissue. The lympocyte deficiency in lymphoid tissue can be corrected by an intravenous injection of thoracic duct lymphocytes. The evidence suggests that the deficiency is corrected by small lymphocytes. Small lymphocytes pass from blood to lymphoid tissue along a route which includes the marginal sinus in splenic white pulp and postcapillary venules in the cortex of lymph nodes and Peyer's patches. Neither the ability of small lymphocytes to colonize lymphoid tissue nor their ability to traverse postcapillary venules are thymus-dependent phenomena. However, movement of small lymphocytes across postcapillary venules appears to modify the structure of endothelium. Intravenously injected small thymocytes migrate to lymphoid tissue in smaller numbers than small lymphocytes inoculated by the same route. The few thymocytes which localize in lymphoid tissue follow the same pathway as circulating small lymphocytes.


Blood ◽  
1960 ◽  
Vol 15 (1) ◽  
pp. 82-94 ◽  
Author(s):  
N. B. EVERETT ◽  
W. O. REINHARDT ◽  
J. M. YOFFEY

Abstract Tritium-labeled thymidine was given by either intraperitoneal or intravenous injection to 13 male guinea pigs of approximately 400 Gm. weight. At times varying from 1 hour to 30 days after the administration of thymidine, thoracic duct lymph was obtained and examined for the presence of labeled cells. After a single dose of thymidine, a steady stream of labeled lymphocytes, ranging from 2 to 7 per cent of the total cells, enters the blood over the period studied. The intensity of the labeling appears to diminish gradually. Labeled large and medium lymphocytes were found in the lymph during the first hour. Labeled small lymphocytes began to appear in the fourth hour, in small numbers, and thereafter increased, whereas the proportion of labeled large and medium lymphocytes steadily diminished. This sequential appearance of large, medium and small lymphocytes is interpreted as indicating the pattern of development of the cell series. The labeled small lymphocytes appearing in the lymph are considered to be newly formed from precursor cells located in the various lymphatic tissues.


Blood ◽  
1950 ◽  
Vol 5 (2) ◽  
pp. 177-190 ◽  
Author(s):  
JOSEPH D. MANN ◽  
GEORGE M. HIGGINS ◽  
EMERY VAN HOOK

Abstract In rats whose intestinal or thoracic duct lymph was drained externally for several days, lymphopenia occurred. Large numbers of cells were collected in the lymph each day, as many, apparently, from the intestinal lymph alone as from the thoracic duct. Hepatic lymph contributed relatively few cells. Augmentation of lymph flow decreased the concentration of cells in the lymph but did not affect the total number of cells collected each day. Fasting for several days likewise did not decrease the first day’s output. With each day’s lymph flow, however, the daily output of cells spontaneously decreased. The decrease was not prevented by the intravenous injection of fresh lymph or of fresh rat plasma in large amounts. In view of this unexplained effect, one must be cautious in interpreting the results of experiments on the lymph lymphocyte.


Gut ◽  
1973 ◽  
Vol 14 (1) ◽  
pp. 30-34 ◽  
Author(s):  
B. G. Clendinnen ◽  
D. D. Reeder ◽  
J. C. Thompson

1935 ◽  
Vol 62 (6) ◽  
pp. 849-860 ◽  
Author(s):  
Cecil K. Drinker ◽  
John F. Enders ◽  
Morris F. Shaffer ◽  
Octa C. Leigh

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. 2. The organisms may become more numerous in the lymph than in the blood. 3. If homologous or heterologous antisera are injected, the blood may be sterilized, but though the organisms may be lessened in the lymph, sterilization at least within 4 hours is not secured, and in the intact animal living organisms must continue to enter the blood with the thoracic duct lymph. 4. In infected rabbits after intravenous injection of considerable quantities of antisera containing moderate amounts of agglutinin, no antibody appears in the thoracic duct lymph although the presence of horse serum may be detected. The injection of a very large quantity of antiserum containing a high titre of agglutinin is followed by the penetration of antibody into the lymph. This, however, has failed to sterilize the lymph or to permanently affect the rate of multiplication of the pneumococci.


1971 ◽  
Vol 24 (4) ◽  
pp. 1309 ◽  
Author(s):  
JM Gooden ◽  
MR Brandon ◽  
PE Hartmann ◽  
AK Lascelles

The factors affecting lipid absorption in unanaesthetized calves less than 24 hr old have been studied by comparing the output of lipid in the thoracic duct lymph of calves fed one of the following diets: (1) colostrum, in which the colostral fat was replaced with milk fat globules; (2) milk; (3) colostral whey containing milk fat globules; (4) isotonic saline containing milk fat globules. The animals were fed after they had recovered sufficiently from the operation to stand and suck from a nipple feeder.


1960 ◽  
Vol 38 (6) ◽  
pp. 954-956 ◽  
Author(s):  
Allan E. Dumont ◽  
John H. Mulholland

Diabetes ◽  
1993 ◽  
Vol 42 (5) ◽  
pp. 720-731 ◽  
Author(s):  
G. M. Steil ◽  
M. A. Meador ◽  
R. N. Bergman

Diabetes ◽  
1994 ◽  
Vol 43 (2) ◽  
pp. 180-190 ◽  
Author(s):  
R. A. Poulin ◽  
G. M. Steil ◽  
D. M. Moore ◽  
M. Ader ◽  
R. N. Bergman

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