Aquaporins, major intrinsic proteins (MIPs) present in the plasma and intracellular membranes, facilitate the transport of small neutral molecules across cell membranes in higher plants. Recently, progress has been made in understanding the mechanisms of aquaporin subcellular localization, transport selectivity, and gating properties. Although the role of aquaporins in maintaining the plant wat...

La cirugía bariátrica se asocia a una afectación del metabolismo mineral óseo cuya fisiopatología y traducción clínica a largo plazo no son bien conocidas. El efecto de la pérdida de peso sobre el metabolismo óseo se atribuye a la combinación de los efectos mecánicos y nutricionales. En los últimos años también se ha implicado una regulación neurohormonal del recambio óseo conocida como eje tej...

Minerals and some biochemical parameters determined from blood serum analyses in left displacement abomasum (LDA) affected and healthy dairy cows to evaluate the effect of displacement abomasum on mineral status, energy metabolism and liver function. Samples were collected from 60 affected cows and 60 healthy control cows matched with cases, based on herd, parity, and stage of lactation. Concen...

background there is evidence in support of low bone density in young patients with disorders of phenylalanine metabolism; however, little is known about muscle and fat mass in these patients, especially in those with mild hyperphenylalaninemia (mhpa). objectives we aimed to evaluate body composition of children and adolescents with early-diagnosed disorders of phenylalanine metabolism. patients...

Biochemical markers of bone metabolism are divided into two groups: formation and resorption markers. Bone turnover is a dynamic process, which increases in postmenopausal period. Hormone replacement therapy (HRT) can diminish this increased bone turnover. Biochemical markers reflect acute changes in bone metabolism. Therefore, they may be very useful for the prediction of subsequent bone miner...

BACKGROUND AND OBJECTIVES Osteoprotegerin (OPG), a cytokine that regulates bone resorption, has been implicated in the process of vascular calcification and stiffness. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS Serum OPG was measured in 351 participants with chronic kidney disease (CKD) from one site of the Chronic Renal Insufficiency Cohort Study. Cortical bone mineral content (BMC) was m...

General comments in relation to bone mineral metabolism: • In Stage 5 kidney disease, serum phosphate, serum calcium, calcium x phosphate product and parathyroid hormone (PTH) level need to be considered simultaneously when assessing the bone mineral status of a patient: a combination of high calcium, high phosphate and low PTH level being associated with the worst outcome. (Level III evidence ...

OBJECTIVE The present study was designed to compare the bone mineral density of children and adolescents with celiac disease to the bone mineral density of controls, and to evaluate laboratory analysis of calcium metabolism of celiac disease patients. METHODS Thirty celiac disease patients (17 children, 13 adolescents), on a gluten-free diet, and 23 healthy subjects were studied. Tests of bon...

Disturbances in mineral and bone metabolism are prevalent in chronic kidney disease (CKD) and are an important cause of morbidity, decreased quality of life, and extraskeletal calcification that have been associated with increased cardiovascular mortality. These disturbances have traditionally been termed renal osteodystrophy and classified based on bone biopsy. Kidney Disease: Improving Global...

A host of nutrients are needed by cattle to support functions associated with life, and to grow, reproduce, and nourish their offspring (i.e., produce milk). A vast amount of resources have been expended to quantify the amounts of specific nutrients needed to perform these function so that economically efficient diets can be formulated. Feeding diets that provide adequate, but not excessive, am...