The role of macronutrients in gastrointestinal blood flow

Aguilar-Nascimento, José Eduardo de

doi:10.1097/01.mco.0000170755.32996.1d

Cited by 24 publications

(16 citation statements)

References 45 publications

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“…Meal composition in PCOS. Fertil Steril 2009. mesenteric and portal blood flow after high-carbohydrate and high-fat meals could be due to differences in gastric emptying, release of gastrointestinal hormones, and sympathetic nervous system activation (26,29). However, the specific mechanisms for the postprandial reduction in T levels are unknown (28).…”

Section: Figurementioning

confidence: 98%

Comparison of hormonal and metabolic markers after a high-fat, Western meal versus a low-fat, high-fiber meal in women with polycystic ovary syndrome

Katcher

Kunselman

Dmitrović³

et al. 2009

Fertility and Sterility

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Section: Figurementioning

confidence: 98%

Comparison of hormonal and metabolic markers after a high-fat, Western meal versus a low-fat, high-fiber meal in women with polycystic ovary syndrome

Katcher

Kunselman

Dmitrović³

et al. 2009

Fertility and Sterility

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“…Like BBS, GLN prevents some but not all the consequences of non-specific activation of neutrophil lymphocytes. Finally, GLN improves the survival of animals after visceral or gut ischemia-reperfusion but not to the degree that normal oral feeding does, whereas arginine (ARG) may deteriorate the function of the mucosal barrier and enhance permeability [106,107]. GLN-enriched TPN preserved both extraintestinal and intestinal IgA levels and had a normalizing effect on Th2-type IgA-stimulating cytokines [105,108,109,110].…”

Section: Glutamine-argininementioning

confidence: 99%

Artificial Nutrition and Intestinal Mucosal Barrier Functionality

Anastasilakis¹,

Ioannidis

Gkiomisi

et al. 2013

Digestion

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The gastrointestinal tract has a major role in digestion and absorption of nutrients while playing a leading role in defense of the body. It forms a shield against the invasion of various microorganisms or their products (e.g. antigens, toxins) and therefore it is important to establish its integrity and functionality. That depends on the route of administration and the composition of the artificial nutrition. This study concentrates on the influences of different kinds of artificial nutrition in the functionality of the intestinal mucosal barriers. It seems that full macromolecular solutions of enteral nutrition ensure an adequate mucous immune response, while a lack of nutritional stimulus in the lumen leads rapidly to a dysfunction of gastric-associated lymphatic tissue and mucosal immune system. This dysfunction renders the patients susceptible to infections in distant organs, hospital pneumonia, and multiorgan failure of non-infectious etiology. In patients with indication of total parenteral nutrition administration, addition of bombesin or glutamine preserves mucosal immune response and may limit the adverse effects.

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“…It is also particularly important for long-duration exercise such as marathon running and cycle road racing, since appropriate supplementation of foods and water is essential during these races. In addition to the provision of appropriate or optimum food intake during exercise, it is clinically important to protect the gastrointestinal organs from unnecessary stress induced by hypoperfusion; although the gastrointestinal organs are less vulnerable to hypoperfusion than other regions-only long-lasting hypoperfusion increases its permeability 23) .…”

Section: Effect Of Food Ingestion On the Gastrointestinal Tract At Rementioning

confidence: 99%

Blood flow in non-muscle tissues and organs during exercise: Nature of splanchnic and ocular circulation

Hayashi

Yamaoka-Endo

Someya

et al. 2012

JPFSM

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In response to increased vascular conductance associated with vasodilation in exercising muscles, many non-exercising organs suppress their blood flow by vasoconstriction, thus helping to maintain blood pressure. This vasoconstriction in non-exercising organs contributes to ensuring a favorable distribution of the blood flow. However, a consequent excessive decrease of blood flow in non-exercising organs should be avoided so that they can maintain appropriate functioning during and/or after exercise. There is now evidence of a decrease in splanchnic blood flow with vasoconstriction during dynamic exercise, which indirectly contributes to an increase in flow in exercising muscles. Hypoperfusion in the splanchnic area, induced by such vasoconstriction, may result in gastrointestinal symptoms. On the other hand, such vasoconstriction is suppressed when exercise is performed after food intake, which may be associated with the maintenance of digestive and absorptive functions in the gastrointestinal tract. In contrast to organs that decrease their blood flow, the choroidal flow, which forms part of the ocular blood flow, increases with exercise intensity, but without vasodilation. The relevance of this phenomenon to visual function and the nature of ocular circulation remain unclear. Competition in blood flow between exercising muscles and non-exercising organs should be examined from the viewpoint of the functions of non-exercising organs and exercising condition, such as the postprandial condition.

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The role of macronutrients in gastrointestinal blood flow

Abstract: Understanding the relationship between macronutrients and gastrointestinal blood flow is a major challenge. Ongoing research in nutritional support in hypoperfused, catecholamine-dependent patients will open the door to optimize the recovery of patients in critical care.

Cited by 24 publications

References 45 publications

Comparison of hormonal and metabolic markers after a high-fat, Western meal versus a low-fat, high-fiber meal in women with polycystic ovary syndrome

Comparison of hormonal and metabolic markers after a high-fat, Western meal versus a low-fat, high-fiber meal in women with polycystic ovary syndrome

Artificial Nutrition and Intestinal Mucosal Barrier Functionality

Blood flow in non-muscle tissues and organs during exercise: Nature of splanchnic and ocular circulation

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