No abstract available.
Blood Glucose* ; Humans ; Infant, Newborn ; Infant, Premature*

No abstract available.
Blood Transfusion* ; Humans ; Infant, Newborn ; Infant, Premature*

Humans ; Infant, Extremely Premature ; blood ; Infant, Newborn ; Oxygen ; blood

Infant, Newborn ; Humans ; Infant, Premature ; Infant, Low Birth Weight ; Blood Transfusion ; Infant, Premature, Diseases

Vitamin A is a fat-soluble vitamin, and it is not only necessary for the normal growth and development of epithelial cells, but also plays a very important role in the normal growth and development of the retina, lungs, gastrointestinal tract, brain, and immune system. Studies have confirmed that the low level of vitamin A in premature infants at birth can last through the entire infancy. Recently, there have been particular concerns about the level of vitamin A and development of diseases in premature infants, with major focuses on the related mechanisms of action of vitamin A in respiratory distress syndrome, chronic lung disease, retinopathy of prematurity, necrotizing enterocolitis, patent ductus arteriosus, and infections in premature infants, which still awaits further investigation.This paper summarizes and analyzes the current status of research on vitamin A level and diseases of premature infants at home and abroad. In addition, although enough evidence suggests that vitamin A supplementation is beneficial to preterm infants, evidence is still lacking for recommended methods for supplementation and dose of vitamin A, and further studies are needed.
Animals ; Humans ; Infant, Premature ; blood ; Infant, Premature, Diseases ; blood ; Vitamin A ; blood

Brain Injuries ; blood ; Humans ; Hypoglycemia ; pathology ; Infant, Newborn ; Infant, Premature

No abstract available.
Blood Platelets* ; Humans ; Infant, Newborn ; Infant, Premature* ; Phototherapy* ; Platelet Count*

No abstract available.
Blood Flow Velocity* ; Humans ; Infant, Newborn ; Infant, Premature*

Blood Glucose ; Blood Glucose Self-Monitoring ; Humans ; Hyperglycemia ; Infant ; Infant, Newborn ; Infant, Premature

OBJECTIVETo study the changes of plasma vasoactive intestinal peptide (VIP) levels and the relationship of plasma VIP levels with feeding intolerance (FI) in preterm infants.

METHODSPlasma VIP concentrations were measured using radioimmunoassay in 53 preterm infants with FI 1, 4, 7 and 14 days after birth. Fifty-nine preterm infants without FI served as the control group.

RESULTSThe fasting plasma concentrations of VIP in the FI group 1, 4 and 7 days after birth (129 ± 46, 144 ± 32 and 166 ± 31 pg/mL respectively) were significantly lower than those in the control group (195 ± 63, 197 ± 31 and 205 ± 34 pg/mL respectively) (P<0.05). The increased plasma VIP concentrations were associated with the increased gestational age, age in days and enteral feeding volume in the FI group. By 14 days, the plasma concentrations of VIP in the FI group (198 ± 41 pg/mL) were similar to those in the control group (202 ± 48 pg/mL) (P>0.05). The younger the infant's gestational age, the more prolonged the FI. Plasma levels of VIP on day 1 of life in the FI group were negatively correlated with the duration of FI (r=-0.799, P<0.05).

CONCLUSIONSPlasma levels of VIP might be related to the development of FI in preterm infants and might serve as a predictor of FI.

Female ; Gastrointestinal Diseases ; blood ; Gestational Age ; Humans ; Infant, Newborn ; Infant, Premature ; blood ; Infant, Premature, Diseases ; blood ; Male ; Vasoactive Intestinal Peptide ; blood