geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Effects of net transmucosal volume flux on lymph flow in the canine colon. Structural-functional relationship


, : Effects of net transmucosal volume flux on lymph flow in the canine colon. Structural-functional relationship. Gastroenterology 81(6): 1080-1090

The effects of net transmucosal fluid flux on lymph flow, lymphatic protein flux, and lymph oncotic pressure were analyzed in an isolated autoperfused canine colon preparation. Active fluid absorption and secretion were induced by intraluminal instillation of Tyrode's solution alone and Tyrode's solution containing 40 mM theophylline, respectively. In contrast to previous observations in the small bowel, colonic lymph flow, lymph protein flux, or lymph oncotic pressure was not affected by net transmucosal volume flux (absorptive or secretory). Ultrastructural analyses of the lymphatic and capillary microcirculations of the mucosal regions of the colon and ileum indicate that, relative to the small intestine, the colonic mucosa is characterized by (a) lymphatic vessels that are smaller in caliber and do not extend beyond the bottom third of the mucosa and (b) blood capillaries that are situated half as far from the base of the epithelial cells. These results indicate that (a) the inability of net transmucosal fluid movement to alter colonic lymph flow can be attributed to the paucity of lymphatic drainage in the colonic mucosa and (b) blood capillaries are the sole conduits by which absorbed volume is removed from the colonic interstitium, a task facilitated by the close proximity of the fenestrated capillaries to the absorptive epithelium.

US$29.90

PMID: 7286586


Other references

Bidani, A.K.; Churchill, P.C., 1981: Na intake, renal renin, and the severity of myohemoglobinuric renal failure in rats. The role of dietary sodium and renal cortical renin concentration (RCRC) on the severity of glycerol-induced acute renal failure (ARF) was studied in rats. Na loading (1% NaCl to drink) and Na deprivation (Na-free diet) for 5 to 6 weeks decreased...

Petrukovich, S.U., 1960: Mosaic in winter wheat. Virusnye Bolezni Sel Skokhoz Rastenii I Mery Bor By S Nimi : 320-325

Kitaev M.I., 1970: Auto antibodies and tuberculin hyper sensitivity of the leukocytes in silicosis and silico tuberculosis. Aktual'Nye Problemy Professional'Noi Patologii Res Ikanskoi Mezhvedomstvennyi Sbornik: 82

Shien, T.; Tanaka, T.; Tanabe, M.; Okumura, Y.; Masuda, N.; Yoshida, A.; Arima, N.; Komoike, Y.; Tanaka, S.; Iwase, T.; Taguchi, T.; Nakatsukasa, K.; Inaji, H.; Ishitobi, M., 2017: Evaluation of ALDH1 expression in ipsilateral breast cancer recurrence. Aldehyde dehydrogenase 1 (ALDH1) is a cancer stem cell (CSC) marker that is easily evaluable. The expression and clinical significance of ALDH1 in ipsilateral breast tumor recurrence (IBTR) has yet to be investigated. In the present study, the exp...

Nishimoto, M.; Kitaoka, M., 2007: Identification of N-acetylhexosamine 1-kinase in the complete lacto-N-biose I/galacto-N-biose metabolic pathway in Bifidobacterium longum. We have determined the functions of the enzymes encoded by the lnpB, lnpC, and lnpD genes, located downstream of the lacto-N-biose phosphorylase gene (lnpA), in Bifidobacterium longum JCM1217. The lnpB gene encodes a novel kinase, N-acetylhexosami...

Paleczny, M.; Hammill, E.; Karpouzi, V.; Pauly, D., 2016: Population Trend of the World's Monitored Seabirds, 1950-2010. Seabird population changes are good indicators of long-term and large-scale change in marine ecosystems, and important because of their many impacts on marine ecosystems. We assessed the population trend of the world's monitored seabirds (195...

L.M.Cartan; J.P.O.ens; B.W.B.ackwelder; B.J.S.abo; D.F.B.lknap; N.K.iausakul; R.M.M.tterer; J.F.W.hmiller, 1982: Comparison of amino acid racemization geochronometry with lithostratigraphy, biostratigraphy, uranium-series coral dating, and magnetostratigraphy in the Atlantic Coastal Plain of the southeastern United States. The results of an integrated study comprising litho- and biostratigraphic investigations, uranium-series coral dating, amino acid racemization in molluscs, and paleomagnetic measurements are compared to ascertain relative and absolute ages of Plei...

Parore, T., 1983: Maori land and forestry: development in Taitokerau. New Zealand journal of forestry8(2): 255-262

Wang, Y.; Li, L.; Qu, Z.; Li, R.; Bi, T.; Jiang, J.; Zhao, H., 2014: The expression of miR-30a* and miR-30e* is associated with a dualistic model for grading ovarian papillary serious carcinoma. Histological grade has already been recognized as a very important prognostic factor for ovarian papillary serous carcinoma (OPSC). On the basis of pathogenetic mechanisms, recent findings suggest a dualistic model of OPSC consisting of types I (...

Sebag, H.; Ribier, A.; Simon, P.; Sebillotte, L., 1995: Compositions for the treatment of acne containing a derivative of salicyclic acid and derivatives of salicylic acid. Official Gazette of the United States Patent & Trademark Office Patents 1174(1): 346, May 2