Human milk is a product of human evolution and is crucial for the early growth and development of infants as well as maternal health. This paper discusses the research and application of human milk science in China, aiming to clarify the research pathways in this field and contribute to the promotion of breastfeeding initiatives and the realization of the Healthy China 2030 goals.

A comprehensive understanding of the nutritional composition and active components of human milk are important for promoting infant health. However, in the design and implementation of scientific research on human milk, the lack of standardized research and implementation methods have led to the collection, storage, and testing processes of human milk samples being largely based on reference literature and practical experience. This has resulted in variability in the representativeness of human milk samples and differences in the comparability of research results between different studies. This article summarizes the principles and guidelines for the " Specification for collection and storage of human milk samples for research", published by the Chinese Nutrition Society on December 30, 2022, and discusses the feasibility and importance of standardized management in the process of scientific research on human milk.

Periodontitis is a chronic inflammatory disease marked by a dysregulated immune microenvironment, posing formidable challenges for effective treatment. The disease is characterized by an altered glucose metabolism in macrophages, specifically an increase in aerobic glycolysis, which is linked to heightened inflammatory responses. This suggests that targeting macrophage metabolism could offer a new therapeutic avenue. In this study, we developed an immunometabolic intervention using quercetin (Q) encapsulated in bioadhesive mesoporous polydopamine (Q@MPDA) to treat periodontitis. Our results demonstrated that Q@MPDA could reprogram inflammatory macrophages to an anti-inflammatory phenotype (i.e., from-M1-to-M2 repolarization). In a murine periodontitis model, locally administered Q@MPDA reduced the presence of inflammatory macrophages, and decreased the levels of inflammatory cytokines (IL-1β and TNF-α) and reactive oxygen species (ROS) in the periodontium. Consequently, it alleviated periodontitis symptoms, reduced alveolar bone loss, and promoted tissue repair. Furthermore, our study revealed that Q@MPDA could inhibit the glycolysis of inflammatory macrophages while enhancing oxidative phosphorylation (OXPHOS), facilitating the shift from M1 to M2 macrophage subtype. Our findings suggest that Q@MPDA is a promising treatment for periodontitis via immunometabolic rewiring.

This article is a summary of the Second China Breast Milk Science Conference, which was held in Beijing from August 5 to 7, 2022, with the theme of "Data sharing, method sharing and science sharing". The purpose of the conference is to summarize the latest progress in breast milk research, identify the unresolved issues, and jointly discuss the direction of future breast milk research. Firstly, we summarize the contents and purpose of breast milk scientific research and prospect of breast milk science. The second part focuses on the research status of breast milk composition and its health effects, and puts forward the future research direction. The third section focuses on the health effects of breastfeeding and scientific support and key aspects of breastfeeding promotion actions. The fourth part elaborates the specific methods of current scientific research of breast milk and emphasize the importance of method standardization and the idea of future methodological research. The fifth part consists of the strategy of feeding infants with medical conditions and ways to better promote the growth and development of these infants. The last part introduces the innovation, deficiencies, and future research directions of infant formula production technology in China. This conference demonstrate the importance of multidisciplinary communication, discussions and collaborations in clinical medicine, nutrition, perinatal health, food science, and policy-making in the scientific research of breast milk, and provides guidance for future multidisciplinary research on the physiology of lactation, the composition of breast milk, breastfeeding, and infants and young children nutrition.

Drug metabolism and pharmacokinetics (DMPK) is an important branch of pharmaceutical sciences. The nature of ADME (absorption, distribution, metabolism, excretion) and PK (pharmacokinetics) inquiries during drug discovery and development has evolved in recent years from being largely descriptive to seeking a more quantitative and mechanistic understanding of the fate of drug candidates in biological systems. Tremendous progress has been made in the past decade, not only in the characterization of physiochemical properties of drugs that influence their ADME, target organ exposure, and toxicity, but also in the identification of design principles that can minimize drug-drug interaction (DDI) potentials and reduce the attritions. The importance of membrane transporters in drug disposition, efficacy, and safety, as well as the interplay with metabolic processes, has been increasingly recognized. Dramatic increases in investments on new modalities beyond traditional small and large molecule drugs, such as peptides, oligonucleotides, and antibody-drug conjugates, necessitated further innovations in bioanalytical and experimental tools for the characterization of their ADME properties. In this review, we highlight some of the most notable advances in the last decade, and provide future perspectives on potential major breakthroughs and innovations in the translation of DMPK science in various stages of drug discovery and development.

Objective: To study the influence of personality on the occurrence of dental trauma of school-aged children. Methods:The school-aged children with dental trauma who came to visit our department were randomly recruited. The Eysenck Personality Scale was used to test the subjects who met the inclusion criteria. Results: 306 children were included in the study. There was a statistically significant association between personality type and the number of traumatic teeth (P ＜ 0. 05) and the number of traumatic teeth in children with extroversion was higher than that of children with neutrality or introversion (P ＜ 0. 05) . Conclusion: Extroverted personality is a significant correlation factor affecting the severity of dental trauma in children, and it is of great significance to provide scientific guidance and warning for them to prevent tooth trauma.

OBJECTIVETo evaluate the efficacy and safety of 4 treatment options for HBeAg-positive chronic hepatitis B (CHB) patients following a suboptimal response to 24-week interferon monotherapy.

METHODSThe data of 193 HBeAg-positive CHB patients with suboptimal response to 24-week interferon monotherapy were collected from Nanfang Hospital between September, 2010 and January, 2013. According to the subsequent treatments, the patients were divided into group A with additional entecavir or adefovir, group B with further interferon monotherapy, group C with conversion to NAs therapy, and group D with direct therapy withdrawal, and the biochemical and virological results at weeks 24, 48 and 72 were analyzed in the 4 groups.

RESULTSAt week 48, the HBV DNA negative rates and serum alanine aminotransferase (ALT) normalization rates were both significantly higher in group A and C than in group B (P<0.05); in group A, ETV therapy subgroup had a significantly higher HBV DNA negative rate than ADV therapy subgroup at week 48 (90.3% vs 59.5%, Χ=8.255, P=0.004). At week 72, 39.7%(27/68) of the patients in group A achieved HBeAg seroconversion, a rate significantly higher than those in groups B (Χ=4.238, P=0.040) and C (Χ=7.681, P=0.006); the HBV DNA negative rate and ALT normalization rate in group A were 85.3%(58/68) and 86.8%(59/68), respectively, both significantly higher than those in group B (Χ=23.018, P<0.001; Χ=5.987, P=0.014) but comparable to those in group C (P>0.05). In the two subgroups in group A, the HBV DNA negative rate and HBeAg seroconversion rate were both significantly higher in ETV subgroup (Χ=9.823, P=0.002; Χ=5.450, P=0.020). In group D, all the patients remained HBeAg-positive with abnormal ALT levels and high level of HBV DNA.

CONCLUSIONFor HBeAg-positive CHB patients with suboptimal response to 24-week interferon monotherapy, combined treatment with NAs (especially ETV) and extension of the treatment course can significantly improve the HBeAg seroconversion rates, HBV DNA negative rates, and ALT normalization rates.

Adenine ; analogs & derivatives ; therapeutic use ; Alanine Transaminase ; blood ; Antiviral Agents ; therapeutic use ; DNA, Viral ; blood ; Drug Therapy, Combination ; Guanine ; analogs & derivatives ; therapeutic use ; Hepatitis B e Antigens ; blood ; Hepatitis B, Chronic ; drug therapy ; Humans ; Interferons ; therapeutic use ; Organophosphonates ; therapeutic use

Objective To evaluate the efficacy and safety of 4 treatment options for HBeAg-positive chronic hepatitis B (CHB) patients following a suboptimal response to 24-week interferon monotherapy. Methods The data of 193 HBeAg-positive CHB patients with suboptimal response to 24-week interferon monotherapy were collected from Nanfang Hospital between September, 2010 and January, 2013. According to the subsequent treatments, the patients were divided into group A with additional entecavir or adefovir, group B with further interferon monotherapy, group C with conversion to NAs therapy, and group D with direct therapy withdrawal, and the biochemical and virological results at weeks 24, 48 and 72 were analyzed in the 4 groups. Results At week 48, the HBV DNA negative rates and serum alanine aminotransferase (ALT) normalization rates were both significantly higher in group A and C than in group B (P<0.05); in group A, ETV therapy subgroup had a significantly higher HBV DNA negative rate than ADV therapy subgroup at week 48 (90.3% vs 59.5%, χ2=8.255, P=0.004). At week 72, 39.7%(27/68) of the patients in group A achieved HBeAg seroconversion, a rate significantly higher than those in groups B (χ2=4.238, P=0.040) and C (χ2=7.681, P=0.006); the HBV DNA negative rate and ALT normalization rate in group A were 85.3%(58/68) and 86.8%(59/68), respectively, both significantly higher than those in group B (χ2=23.018, P<0.001; χ2=5.987, P=0.014) but comparable to those in group C (P>0.05). In the two subgroups in group A, the HBV DNA negative rate and HBeAg seroconversion rate were both significantly higher in ETV subgroup (χ2=9.823, P=0.002;χ2=5.450, P=0.020). In group D, all the patients remained HBeAg- positive with abnormal ALT levels and high level of HBV DNA. Conclusion For HBeAg-positive CHB patients with suboptimal response to 24- week interferon monotherapy, combined treatment with NAs (especially ETV) and extension of the treatment course can significantly improve the HBeAg seroconversion rates, HBV DNA negative rates, and ALT normalization rates.

Objective To evaluate the efficacy and safety of 4 treatment options for HBeAg-positive chronic hepatitis B (CHB) patients following a suboptimal response to 24-week interferon monotherapy. Methods The data of 193 HBeAg-positive CHB patients with suboptimal response to 24-week interferon monotherapy were collected from Nanfang Hospital between September, 2010 and January, 2013. According to the subsequent treatments, the patients were divided into group A with additional entecavir or adefovir, group B with further interferon monotherapy, group C with conversion to NAs therapy, and group D with direct therapy withdrawal, and the biochemical and virological results at weeks 24, 48 and 72 were analyzed in the 4 groups. Results At week 48, the HBV DNA negative rates and serum alanine aminotransferase (ALT) normalization rates were both significantly higher in group A and C than in group B (P<0.05); in group A, ETV therapy subgroup had a significantly higher HBV DNA negative rate than ADV therapy subgroup at week 48 (90.3% vs 59.5%, χ2=8.255, P=0.004). At week 72, 39.7%(27/68) of the patients in group A achieved HBeAg seroconversion, a rate significantly higher than those in groups B (χ2=4.238, P=0.040) and C (χ2=7.681, P=0.006); the HBV DNA negative rate and ALT normalization rate in group A were 85.3%(58/68) and 86.8%(59/68), respectively, both significantly higher than those in group B (χ2=23.018, P<0.001; χ2=5.987, P=0.014) but comparable to those in group C (P>0.05). In the two subgroups in group A, the HBV DNA negative rate and HBeAg seroconversion rate were both significantly higher in ETV subgroup (χ2=9.823, P=0.002;χ2=5.450, P=0.020). In group D, all the patients remained HBeAg- positive with abnormal ALT levels and high level of HBV DNA. Conclusion For HBeAg-positive CHB patients with suboptimal response to 24- week interferon monotherapy, combined treatment with NAs (especially ETV) and extension of the treatment course can significantly improve the HBeAg seroconversion rates, HBV DNA negative rates, and ALT normalization rates.

Objective To investigate the distribution of anxiety and depression disorders in patients of carotid artery stenosis (CAS),and the relationship between symptoms of cerebral infarction and the severity of anxiety and depression.Methods We used Self-Rating Anxiety Scale (SAS) and Self-Rating Depression Scale(SDS) created by William W.K.Zung to evaluate the anxiety and depression disorders associated with CAS in 93 patients hospitalized at the Department of Vascular Surgery,and 146 hospitalized varicose veins patients as acontrols.Results The scales of CAS are significantly higher than the control group(SAS:32 ± 8 vs 29 ± 7,P ＜ 0.001 ; SDS:42 ± 14 vs 35 ± 11,P ＜ 0.001),within-group analysis of CAS shows that there is no statistical difference between symptomatic group and non-symptomatic group (SAS:32 ±8 vs 32 ± 7,P =0.780; SDS:41 ± 14 vs 42 ± 14,P =0.830),or between infarction group and non-infaction group (SAS:31 ± 8 vs 33 ± 8,P =0.147; SDS:39 ± 14 vs 43 ± 13,P =0.241).Conclusions CAS can cause anxiety and depression disorders,and the disorders are not related to symptoms of cerebral ischemia and cerebral infarction.