Effect of recombinant human growth hormone on serum Klotho and fibroblast growth factor 23 in children with idiopathic short stature / 中国当代儿科杂志

OBJECTIVES@#To investigate the changes in the serum levels of Klotho, fibroblast growth factor 23 (FGF23), and insulin-like growth factor-1 (IGF-1) in children with idiopathic short stature (ISS) before and after recombinant human growth hormone (rhGH) treatment, as well as the correlation of Klotho and FGF23 with the growth hormone (GH)/IGF-1 growth axis in these children.@*METHODS@#A prospective study was conducted on 33 children who were diagnosed with ISS in the Department of Pediatrics, Hebei Provincial People's Hospital, from March 10, 2021 to December 1, 2022 (ISS group). Twenty-nine healthy children, matched for age and sex, who attended the Department of Child Healthcare during the same period, were enrolled as the healthy control group. The children in the ISS group were treated with rhGH, and the serum levels of Klotho, FGF23, and IGF-1 were measured before treatment and after 3, 6, and 9 months of treatment. A correlation analysis was conducted on these indexes.@*RESULTS@#There were no significant differences in the serum levels of IGF-1, Klotho, and FGF23 between the ISS and healthy control groups (P>0.05). The serum levels of Klotho, FGF23, and IGF-1 increased significantly in the ISS group after 3, 6, and 9 months of rhGH treatment (P<0.05). In the ISS group, Klotho and FGF23 levels were positively correlated with the phosphate level before treatment (P<0.05). Before treatment and after 3, 6, and 9 months of rhGH treatment, the Klotho level was positively correlated with the IGF-1 level (P<0.05), the FGF23 level was positively correlated with the IGF-1 level (P<0.05), and the Klotho level was positively correlated with the FGF23 level (P<0.05), while Klotho and FGF23 levels were not correlated with the height standard deviation of point (P>0.05).@*CONCLUSIONS@#The rhGH treatment can upregulate the levels of Klotho, FGF23, and IGF-1 and realize the catch-up growth in children with ISS. Klotho and FGF23 may not directly promote the linear growth of children with ISS, but may have indirect effects through the pathways such as IGF-1 and phosphate metabolism. The consistent changes in Klotho, FGF23 and IGF-1 levels show that there is a synergistic relationship among them in regulating the linear growth of ISS children.

Expression of nesfatin-1/NUCB2 and ghrelin in gastric mucosa of rats with intrauterine growth retardation / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To investigate the expression of nesfatin-1/NUCB2 and ghrelin in the gastric mucosa of rats with intrauterine growth retardation (IUGR) and its significance.</p><p><b>METHODS</b>The IUGR animal model was established by feeding rats low-protein diets during their pregnancy. Newborn rats were divided into catch-up growth, non-catch-up growth and control groups. Protein and mRNA levels of nesfatin-1/NUCB2 and ghrelin in the gastric mucosa of rats were determined by RT-PCR and Western blot, respectively.</p><p><b>RESULTS</b>Nesfatin-1/NUCB2 mRNA and protein were expressed in the gastric mucosa of rats immediately after birth, and their expression increased in an age-dependent manner in all three groups. Furthermore, the level of nesfatin-1/NUCB2 in the catch-up growth group was higher than that in the control group before weaning, whereas there was no significant difference in nesfatin-1/NUCB2 expression between the two groups after weaning. The level of nesfatin-1/NUCB2 in the non-catch-up growth group was lower than that in the catch-up growth group during the whole observation period. The level of ghrelin in the catch-up growth group was higher than that in the control group starting from day 12 after birth, whereas there was no significant difference in ghrelin expression between the two groups after weaning. The level of ghrelin in the non-catch-up growth group was lower compared with those in the catch-up growth and control groups from days 12 to 28 after birth.</p><p><b>CONCLUSIONS</b>Nesfatin-1 and ghrelin are co-expressed in the gastric mucosa of rats with IUGR after birth and interact with each other to produce long-term nutritional regulation.</p>

Selective screening of inborn errors of metabolism by using the tandem mass spectrometry: pilot study of 552 children at high risk / 中国当代儿科杂志

<p><b>OBJECTIVE</b>To study the application of tandem mass spectrometry (MS/MS) in the selective screening of inborn errors of metabolism (IEM) in high risk children and to understand the positive rate and types of IEM.</p><p><b>METHODS</b>MS/MS was used to examine 552 blood samples from high risk cases of IEM who came from 8 hospitals in Shijiazhuang, Hebei Province.</p><p><b>RESULTS</b>Sixty-four children (11.6%) were confirmed with IEM by the MS/MS, including 33 cases of methylmalonic acidemia or propionic acidemias, 2 cases of phenylketonuria, 3 cases of carnitine palmotoyl transferase I deficiency, 1 case of long-chain acyl-CoA dehydrogenase deficiency, 2 cases of medium-chain acyl-CoA dehydrogenase deficiency, 6 cases of maple syrup urine disease, 2 cases of short-chain acyl-CoA dehydrogenase deficiency, 2 cases of glutaric acidemia type I, 2 cases of isovaleric acidemia, 2 cases of homocystinuria, 4 cases of carnitine deficiency, 1 case of tyrosinemia, 1 case of argininosuccinic aciduria, 2 cases of citrullinemia and 1 case of argininemia.</p><p><b>CONCLUSIONS</b>MS/MS can be used to screen and classify IEM.</p>

Changes of Hematoxin,Lipopolysaccharide,Lipopolysaccharide Binding Protein/Membrane CD_(14) in Children with Systemic Inflammatory Response Syndrome / 实用儿科临床杂志

Objective To investigate the effect of hematoxin,lipopolysaccharide(LPS),lipopolysaccharide binding protein(LBP)/membrane CD14(mCD14) in occurrence and development of systemic inflammatory response syndrome(SIRS) in children.Methods Serum LPS,LBP,mean fluorescence intensity(MFI) of mCD14 on monocytes of 30 patients with SIRS were measured,at the same time 21 healthy children had been chosen to serve as control group.Results Compared with control group,the serum LPS,LBP,MFI of mCD14 on monocytes of patients with SIRS were significantly higher(Pa

Change of Serum Macrophage Inflammatory Protein-1? in Newborn Infants with Hypoxic-Ischemic Encephalopathy / 实用儿科临床杂志

Objective To explore the roles of macrophage inflammatory protein-1?(MIP-1?)in hypoxic-ischemic encephalopathy(HIE)of newborn infarnts.Methods Serum samples were obtained in 24,72 h and 7 d after birth respectively from 34 newborn infants with HIE,and 20 newborn infants without HIE as control group.Enzyme-linked immunosorbent assay(ELISA)method was used to determine the serum concentrations of MIP-1?.Results Levels of MIP-1? in newborn infants with HIE [(12.47?2.51)ng/L]were significantly higher than that of newborn infants without HIE [(8.63?2.63)ng/L](P0.05).Conclusions MIP-1? are involved in HIE of neonates,and the more severe damage,the higher levels in serum,which suggests that,as an inflammatory mediator,the MIP-1? may play an important role in involvement of brain hypoxic-ischemic damage.