【Objective】 To analyze the effects of different fortified feeding methods on nutritional metabolism and growth rate of preterm very low birth weight infants (VLBWI), in order to provide new clues for improving the prognosis of the preterm infants. 【Methods】 A total of 115 cases of premature VLBWI admitted to Department of Neonatology, The First Affiliated Hospital of Kunming Medical University from January 2019 to December 2020 were included in this study, and were divided into fortified breastfeeding group (HFM group), mixed feeding group, and premature formula feeding group (PF group) based on their feeding methods. The effects of different feeding methods on the nutritional metabolism and growth rate of premature VLBWI were analyzed. 【Results】 1) The hospitalization time of infants in the HFM group was shorter than that in PF group and mixed feeding group (t=7.185, 6.924, P<0.05). 2) The proportion of necrotizing enterocolitis (NEC) in the HFM group during hospitalization was lower than that in the PF group (P<0.05); the proportions of late onset septicemia(LOS) and extra uterine growth restriction(EUGR) in the HFM group during hospitalization were lower than those in the PF group (χ²=5.030, 4.147, P<0.05); the proportion of LOS was lower than that of the mixed feeding group(χ²=6.589, P<0.05). 3) During hospitalization, the proportions of abdominal distension, bloody stools and increased eosinophils in the HFM group were lower than those in the PF group (P<0.05), which in mixed feeding group was lower than those in PF group (Fisher exact test, P<0.05). 4) At discharge, the weight and length growth rate of the HFM group were higher than those of the mixed feeding group (t=3.722, 0.425, P<0.001) and the PF group (t =6.015, 0.496, P< 0.001). 【Conclusion】 Fortified breastfeeding can more effectively increase the growth rate of VLBWI in premature infants, improve nutritional metabolism, reduce complications and adverse feeding reactions related to premature infants, and is safer and more effective.

Intestinal flora and their metabolites play an important role in the occurrence and development of cardiovascular diseases such as atherosclerosis(AS),and have become an important target for the prevention and treatment of AS.In this paper,we focus on the intestinal microecological environment and focus on the relationship between intestinal flora metabolites such as trimethylamine oxide(TMAO),short-chain fatty acids(SCFA),phenylacetylglutamine(PAG),lipopolysaccharides(LPS),and bile acids(BA),and AS.At the same time,we also discuss the therapeutic strategies of AS that start from adjusting the intestinal flora and its metabolites,with the hope of opening up a new avenue of AS prevention and treatment.We hope to open up new avenues for the prevention and treatment of AS.

To investigate the effects of molybdenum (Mo) and/or cadmium (Cd) on antioxidant function and the apoptosis-related genes in duck spleens. Sixty healthy 11-day-old ducks were randomly divided into six groups of 10 ducks (control, low Mo group, high Mo, Cd, low Mo + Cd, and high Mo + Cd groups). All were fed a basal diet containing low or high dietary doses of Mo and/or Cd. Relative spleen weight, antioxidant indices, apoptosis-related gene mRNA expression levels, and ultrastructural changes were evaluated after 120 days. The results showed that the relative spleen weight decreased significantly in the high Mo + Cd treatment group which compared with control group. Malondialdehyde levels increased and xanthine oxidase and catalase activities decreased in the Mo and/or Cd groups compared with levels in the control group. Bak-1 and Caspase-3 expressions were upregulated in the high Mo + Cd group, while Bcl-2 was downregulated. In addition, mitochondrial crest fracture, swelling, vacuolation, deformed nuclei, and karyopyknosis in both Mo + Cd treated groups were more severe than in the other groups. The results suggest that Mo and/or Cd can induce oxidative stress and apoptosis of spleen via effects on the mitochondrial intrinsic pathway. Moreover, the results indicate the two elements have a possible synergistic relationship.
Apoptosis* ; Cadmium* ; Caspase 3 ; Catalase ; Diet ; Ducks* ; Malondialdehyde ; Molybdenum* ; Oxidative Stress ; RNA, Messenger ; Spleen* ; Xanthine Oxidase