Objective To investigate the correlation between vitamin A and surfactant protein (SP)-B, SP-C in human body,and to explore the effects on lung development and pulmonary function of neonates. Methods We collected the blood samples of 170 pregnant women and umbilical cord serum of their neonatal babies. The levels of vitamin A in pregnant women and their neonatal babies,and the levels of SP-B and SP-C in neonatal umbilical cord serum were detected by ELISA. We conducted a follow-up by standard telephone questionnaire,which we concerned was the number of respiratory tract infection within six months,in order to assess the neonatal pulmonary functions. Results (1) There was a positive correlation between the vitamin A levels in neonatal umbilical cord blood and in the blood of pregnant women(r=0. 866,P<0. 05). (2) There was a positive correlation between the vitamin A levels in neonatal umbilical cord blood and the levels of SP-B,SP-C in the blood(r=0. 817,P<0. 05). (3)In the follow-up of 170 cases of infants within six months,three cases with pneumonia hospitalized more than once,but no respiratory distress syndrome hap-pened. Conclusion Vitamin A can be used as an important biological marker to evaluate the neonatal pul-monary maturity. If we detect the vitamin A levels of pregnant women,increase the intake of vitamin A,we can improve the content of SP-B,SP-C,improve the development of neonatal lung function in growth.

Objective To investigate the expressions of transmembrane protein 8(Tspan8)and integrin α5(ITGA5)in breast cancer and their relationship with clinicopathological features and prognosis.Methods A total of 136 breast cancer patients admitted to the hospital from April 2018 to April 2020 were enrolled in the study.Breast cancer tissue samples and corresponding paracancerous tissue samples were collected.The ex-pressions of Tspan8 and ITGA5 in breast cancer tissues and corresponding adjacent tissues were detected by immunohistochemistry.The relationship between the expressions of Tspan8 and ITGA5 and the clinicopatho-logical characteristics of breast cancer patients was analyzed.The discharged breast cancer patients were fol-lowed up for 36 months,and the survival status of the patients was recorded.The 3-year survival rate of breast cancer patients with different clinicopathological characteristics was compared.Multivariate Cox regression was used to analyze the influencing factors of axillary lymph node metastasis in breast cancer patients.Results The positive expression rates of Tspan8 and ITGA5 in breast cancer tissues were higher than those in adjacent tissues(P＜0.05).The positive expression rates of Tspan8 and ITGA5 in breast cancer patients with poor differentiation,tumor maximum diameter ≥3 cm,TNM stage Ⅲ-Ⅳ,axillary lymph node metastasis and other molecular subtypes were higher than those in moderate/well differentiation,tumor maximum diam-eter＜3 cm,TNM stage Ⅰ-Ⅱ,no axillary lymph node metastasis and triple negative subtype(P＜0.05).The 3-year survival rate of patients with positive expression of Tspan8 and ITGA5 was significantly lower than that of patients with negative expression of Tspan8 and ITGA5(P＜0.05).The 3-year survival rate of patients with poor differentiation,TNM stage Ⅲ-Ⅳ,axillary lymph node metastasis,other molecular sub-types and positive expressions of Tspan8 and ITGA5 were lower than those of patients with moderate/high differentiation,TNM stage Ⅰ-Ⅱ,no axillary lymph node metastasis,triple negative subtype and negative ex-pressions of Tspan8 and ITGA5(P＜0.05).TNM stage Ⅲ-Ⅳ(HR=2.289,95％CI:1.519-3.447),other molecular subtypes(HR=2.622,95％CI:1.744-3.942),Tspan8 positive expression(HR=3.622,95％CI:2.159-6.077)and ITGA5 positive expression(HR=3.142,95％CI:2.022-4.884)were risk factors for ax-illary lymph node metastasis in breast cancer patients(P＜0.05).Conclusion Tspan8 and ITGA5 are highly expressed in breast cancer patients,which are related to the clinicopathological characteristics and prognosis of patients.

Objective To discuss the importance of nutritional intervention through monitoring the growth and the nutritional status of children with food allergy after comprehensive nutritional intervention.Methods A total of 158 children with food allergy who were under 2 years old were divided into an intervention group and an control group according to comprehensive nutritional intervention.The intervention group received diet guidance from a dietitian regu larly and took probiotics.If necessary,nutrients (calcium,iron and zinc) could be provided.The control group was given oral guidance by the pediatrician.After 6 months 1 follow-up,growth situation was assessed in terms of height and weight indexes,and nutritional intake condition was assessed in the light of serum biochemical indexes.Results The prevalence of malnutrition in the intervention group(17.6％) was significantly lower than that in the control group (37.0％),and there was a statistical sigmficance (x2 =22.03,P ＜ 0.05);the level of zinc [(88.5 ± 9.6) μmol/L]and iron [(18.6 ± 3.4) mmol/L] in the serum were significantly higher than those [zinc:(68.2 ± 8.5) μmol/L;iron:(12.8 ±2.7) mmol/L] in the control group,and there were statistical significance (zinc:t =12.264,P ＜ 0.01;iron:t =10.762,P ＜ 0.05);the daily intake of calcium[(596.1 ± 110.3) mg] and zinc [(10.7 ± 3.7) mg] in children (＞ 6-24 months) of the intervention group were significantly higher than those [calcium:(412.8 ± 89.3) mg and zinc:(7.3 ± 2.1) mg] in the control group (calcium:t =4.011,P ＜ 0.05,zinc:t =5.367,P ＜ 0.05),and the daily intake of protein [(42.8 ± 9.4) g] in the children (＞ 12-24 months) of the intervention group was significantly higher than that [(33.2 ± 8.2) g] in the control group,and there was a statistical significance (t =3.245,P ＜0.05).Conclusions Children with food allergy have risks of malnutrition,while comprehensive nutritional intervention can obviously decrease the prevalence of malnutrition and deficiency of iron,zinc and calcium,hence normative guidance of scientific feeding of children with food allergy is needed.