Hepatic amino acid transport primary to the urea cycle in regulation of biologic neutrality

Article Abstract:

The study of acidosis and alkalosis in rats suggests that the body's pH is not regulated by the liver-ornithine cycle because a low pH checks the formation of ammonium ions but does not inhibit the entry of these ions into the ornithine cycle. Since the concentration of glutamine in the hepatic vein is unaffected, it has been suggested that acidosis and alkalosis affect only those amino acids which are transported by Na+ dependent systems. Thus, the body's pH may be regulated by the kidneys which excrete more hydrogen ions from the amino acids when the liver produces less urea.

Research, Homeostasis

---

Riboflavin can protect tissue from oxidative injury

Article Abstract:

High riboflavin levels may offer protection against damage caused by oxidative forms of hemeproteins. Riboflavin has been shown to reduce the high-valence hemeproteins associated with reoxygenation injury. It is worth determining whether the effects of riboflavin reported in recent experiments have nutritional as well as pharmacological implications. In order to answer these questions greater economic support for riboflavin research will be needed.

Oxidation, Physiological, Physiological oxidation, Vitamin B2, Riboflavin

---

Ontogeny of transport systems for cationic amino acids in the placenta

Article Abstract:

The overall activity levels of various transporters in both the microvillous and the basal membranes of the syncytiotrophoblast directly affect the levels of in vitro amino acids, which are vital ingredients for infant nutrition. Amino acids are concentratively served to the fetus by the placenta, which fulfills the role of a functional boundary between maternal and fetal circulations.

Analysis, Infants, Human nutrition, Amino acids, Amino acids in human nutrition

Similar abstracts:

• Abstracts: Farmstand suppers: the best fresh produce in a trio of terrific entertaining menus. Hearty winter stews
• Abstracts: Vietnam's culinary capitals. Fried rice: a meal in a bowl. Grilling Chinese style
• Abstracts: Spain in its prime. Sonoma's super chardonnays: the world's great white grape is right at home in northern California
• Abstracts: Baltimore's Harborplace. The road to Amana: meet the people, taste the good food, and discover the fascinating story of Iowa's famous colonies
• Abstracts: Chicago pizza: this casual after-work party is a big slice of fun. Hawaii's hot getaway

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.