[Effects of postnatal growth retardation on early neurodevelopment in premature infants with intrauterine growth retardation].

OBJECTIVE: To study the effects of postnatal growth retardation on early neurodevelopment in premature infants with intrauterine growth retardation (IUGR). METHODS: A retrospective analysis was performed on the clinical data of 171 premature infants who were born between May 2008 and May 2012 and were followed up until a corrected gestational age of 6 months. These infants were classified into two groups: IUGR group (n=40) and appropriate for gestational age (AGA) group (n=131). The growth retardation rates at the corrected gestational ages of 40 weeks, 3 months, and 6 months, as well as the neurodevelopmental outcome (evaluated by Gesell Developmental Scale) at corrected gestational ages of 3 and 6 months, were compared between the two groups. RESULTS: The growth retardation rate in the IUGR group was significantly higher than in the AGA group at the corrected gestational ages of 40 weeks, 3 months, and 6 months. All five developmental quotients evaluated by Gesell Developmental Scale (gross motor, fine motor, language, adaptability and individuality) in the IUGR group were significantly lower than in the AGA group at the corrected gestational ages of 3 months. At the corrected gestational age of 6 months, the developmental quotients of fine motor and language in the IUGR group were significantly lower than in the AGA group, however, there were no significant differences in the developmental quotients of gross motor, adaptability and individuality between the two groups. All five developmental quotients in IUGR infants with catch-up lag in weight were significantly lower than in IUGR and AGA infants who had caught up well. CONCLUSIONS: Growth retardation at early postnatal stages may adversely affect the early neurodevelopment in infants with IUGR.

[Risk factors for extrauterine growth retardation at discharge in premature infants].

OBJECTIVE: To study the incidence and risk factors for extrauterine growth retardation (EUGR) at discharge in premature infants. METHODS: A retrospective analysis was performed on 596 premature infants who were admitted to the neonatal intensive care unit between 2006 and 2010. These subjects were classified into EUGR (n=217) and non-EUGR groups (n=379) based on the body weight at discharge. The risk factors for the occurrence of EUGR were studied by multivariate logistic regression analysis. RESULTS: Based on the body weight, length, and head circumference, the incidence of EUGR at discharge was 36.4% (217 cases), 42.0% (250 cases), and 22.8% (136 cases), respectively. Low gestational age, low birth weight, intrauterine growth retardation (IUGR), delayed enteral feeding and complications of the respiratory system were identified as risk factors for EUGR (OR=6.508, 14.522, 5.101, 1.366, and 1.501, respectively). CONCLUSIONS: The incidence of EUGR might be greatly decreased by strengthening the perinatal care, reducing the incidence of premature delivery and IUGR, undertaking early enteral feeding, and actively preventing postnatal complications.

Effect of total flavonoids of acanthopanax senticosus on erythrocyte membrane fluidity in mice / 中国基层医药

Objective To observe contents and effect of total flavonoids of acanthopanax senticosus extract on erythrocyte membrane fluidity.Methods The contents of total flavonoids of acanthopanax sentieosus were deter- mined by spectrophotometry,and erythrocyte membrane fluidity and microviscosity were measured by fluorescence polarization technique.Results The total flavonoids contents of acanthopanax senticosus extract and injection were alike.Both of them increased erythrocyte membrane fluidity and lowered microviscosity,and the effect of acan- thopanax senticosus injection was more significant.Conclusion Total flavonoids of acanthopanax senticosus can in- crease erythrocyte membrane fluidity,so that blood viscosity is lowered and hemorheology factors are improved.