The family readiness for discharge of premature infants in the Neonatal Intensive Care Unit (NICU) is an important index to evaluate the safe discharge of premature infants, and a good family discharge readiness is the basic guarantee for the smooth recovery and healthy growth of premature infants. This article summarizes the concept, influencing factors, and intervention strategies of family discharge readiness for premature infants in NICU, in order to provide reference for the formulation and improvement of discharge readiness measures for premature infants in NICU.

N6-methyladenine(m6A)modification is involved in a variety of biological processes and dynamically regulates RNA stability.When m6A modification is changed,it affects the development of follicles,granulosa cell proliferation and oocyte development,and participates in the occurrence and development of benign ovaria-related diseases,such as polycystic ovary syndrome,premature ovarian dysfunction,and endometriosis,resulting in decreased female fertility.This article reviews the role and research progress of m6A modification in benign ovaria-related diseases,aiming to provide new diagnosis and treatment ideas for subsequent research on improving fertility.

Immunoscenescence plays a key role in the initiation and development of tumors. Furthermore, immunoscenescence also impacts drug delivery and cancer therapeutic efficacy. To reduce the impact of immunosenescence on anti-tumor therapy, this experimental plan aimed to use neutrophils with tumor tropism properties to deliver sialic acid (SA)-modified liposomes into the tumor, kill tumor cells via SA-mediated photochemotherapy, enhance infiltration of neutrophils into the tumor, induce immunogenic death of tumor cells with chemotherapy, enhance infiltration of CD8⁺ T cells into the tumor-draining lymph nodes and tumors of immunosenescent mice, and achieve SA-mediated photochemotherapy. We found that CD8⁺ T cell and neutrophil levels in 16-month-old mice were significantly lower than those in 2- and 8-month-old mice; 16-month-old mice exhibited immunosenescence. The anti-tumor efficacy of SA-mediated non-photochemotherapy declined in 16-month-old mice, and tumors recurred after scabbing. SA-mediated photochemotherapy enhanced tumor infiltration by CD8⁺ T cells and neutrophils, induced crusting and regression of tumors in 8-month-old mice, inhibited metastasis and recurrence of tumors and eliminated the immunosenescence-induced decline in antitumor therapeutic efficacy in 16-month-old mice via the light-heat-chemical-immunity conversion.

Approximately 140 million people worldwide are homozygous carriers of APOE4 (ε4), a strong genetic risk factor for late onset familial and sporadic Alzheimer's disease (AD), 91% of whom will develop AD at earlier age than heterozygous carriers and noncarriers. Susceptibility to AD could be reduced by targeted editing of APOE4, but a technical basis for controlling the off-target effects of base editors is necessary to develop low-risk personalized gene therapies. Here, we first screened eight cytosine base editor variants at four injection stages (from 1- to 8-cell stage), and found that FNLS-YE1 variant in 8-cell embryos achieved the comparable base conversion rate (up to 100%) with the lowest bystander effects. In particular, 80% of AD-susceptible ε4 allele copies were converted to the AD-neutral ε3 allele in human ε4-carrying embryos. Stringent control measures combined with targeted deep sequencing, whole genome sequencing, and RNA sequencing showed no DNA or RNA off-target events in FNLS-YE1-treated human embryos or their derived stem cells. Furthermore, base editing with FNLS-YE1 showed no effects on embryo development to the blastocyst stage. Finally, we also demonstrated FNLS-YE1 could introduce known protective variants in human embryos to potentially reduce human susceptivity to systemic lupus erythematosus and familial hypercholesterolemia. Our study therefore suggests that base editing with FNLS-YE1 can efficiently and safely introduce known preventive variants in 8-cell human embryos, a potential approach for reducing human susceptibility to AD or other genetic diseases.
Humans ; Apolipoprotein E4/genetics* ; Cytosine ; Mutation ; Blastocyst ; Heterozygote ; Gene Editing ; CRISPR-Cas Systems

Objective To investigate the characteristics of pathogenic bacteria in cancer patients with severe infection after radiotherapy and chemotherapy and the application value of metagenomic next-generation sequencing(NGS)in the detection of pathogenic bacteria.Methods A total of 112 patients with severe infection after malignant tumor radiation and chemotherapy admitted to Department of Critical Care Medicine of Wuwei Tumor Hospital from October 2019 to August 2023 were selected as the research objects.A total of 150 specimens from suspected infection sites were collected and tested by traditional etiology and NGS.The characteristics of pathogenic bacteria in severe infection of cancer patients after chemoradiotherapy and the application value of NGS in pathogen detection were analyzed.Results Among 150 samples of 112 patients with severe infection after radiotherapy and chemotherapy,the highest proportion of respiratory system infection was 51.79%(58 cases),followed by 25.89%(29 cases)of bloodstream infection,the lowest central nervous system infection rate was 1.79%(2 cases).Gram-negative bacteria were the most common pathogenic bacteria[NGS 35.33%(53 cases),traditional pathogen detection 23.33%(35 cases)],followed by Gram-positive bacteria[NGS 20.67%(31 cases),traditional pathogen detection 12.00%(18 cases)],and multi-drug resistant bacteria infection rate was more than 80.00%,multi-drug resistant fungal infection rate also reached 28.57%.In the patients with severe infection after radiotherapy and chemotherapy,the positive rate of pathogenic bacteria of NGS was significantly higher than that of traditional pathogen detection[87.33%(131/150)vs.42.67%(64/150),P＜0.01],and the positive detection rate of Gram-negative bacteria,Gram-positive bacteria,fungi and other pathogens was significantly higher than that of traditional pathogen detection[Gram-negative bacteria:35.33%(53/150)vs.23.33%(35/150),Gram-positive bacteria:20.67%(31/150)vs.12.00%(18/150),fungi:22.67%(34/150)vs.6.67%(10/150),others:8.67%(13/150)vs.0.67%(1/150),both P＜0.05].Conclusions The detection rate of pathogenic bacteria of NGS in patients with severe infection after radiotherapy and chemotherapy was significantly higher than that of traditional pathogen detection.The distribution and drug resistance of pathogenic bacteria in severe infection after radiotherapy and chemotherapy are unique,and strengthening the detection of pathogenic bacteria is helpful to improve the curative effect.

MicroRNAs(miRNAs)are trans-acting small regulatory RNAs that work coordinately with transcription factors(TFs)to shape the repertoire of cellular mRNAs available for translation.Despite our growing knowledge of individual plant miRNAs,their global roles in gene regulatory networks remain mostly unassessed.Based on interactions obtained from public databases and curated from the literature,we reconstructed an integrated miRNA network in Arabidopsis that includes 66 core TFs,318 miRNAs,and 1712 downstream genes.We found that miRNAs occupy distinct niches and enrich miRNA-containing feed-forward loops(FFLs),particularly those with miRNAs as intermediate nodes.Further analyses revealed that miRNA-containing FFLs coordi-nate TFs located in different hierarchical layers and that intertwined miRNA-containing FFLs are associated with party and date miRNA hubs.Using the date hub MIR858A as an example,we performed detailed molecular and genetic analyses of three interconnected miRNA-containing FFLs.These analyses revealed individual functions of the selected miRNA-containing FFLs and elucidated how the date hub miRNA fulfills multiple regulatory roles.Collectively,our findings highlight the prevalence and importance of miRNA-containing FFLs,and provide new insights into the design principles and control logics of miRNA regulatory networks governing gene expression programs in plants.

Objective:To construct a perioperative nursing planning for patients with esophageal cancer based on the concept of enhanced recovery after surgery (ERAS) , so as to provide a basis for the development of ERAS nursing for patients with esophageal cancer during perioperative period.Methods:From November 2019 to September 2020, a perioperative ERAS nursing planning for patients with esophageal cancer was constructed through literature retrieval, field observation, Delphi expert consultation, and analytic hierarchy process.Results:A total of two rounds of expert consultations were conducted. The valid recovery rates of the questionnaire were 95.24% (20/21) and 100.00% (20/20) , and the expert authority coefficients were 0.89 and 0.93. The Kendall harmony coefficients were 0.25 and 0.34 ( P<0.01) . The perioperative enhanced recovery nursing planning for patients with esophageal cancer included 5 first-level indicators, 17 second-level indicators and 49 third-level indicators. Conclusions:The perioperative enhanced recovery nursing planning for patients with esophageal cancer is scientific and reliable, and can effectively standardize and guide the development of clinical nursing work.

Objective To discuss the controversial role of breast milk in late-onset group B Streptococcus (GBS) infections.Methods This study reported a case of recurrent late-onset GBS sepsis with the suspicion of breast milk transmission in an extremely preterm infant born at 22+6 weeks who was treated at the University of Hong Kong-Shenzhen Hospital in September 2016.Literatures about late-onset GBS cases associated with contaminated breast milk were reviewed to investigate whether GBS could be transmitted through breast milk.Results (1) Case report:A breast-fed extremely preterm infant born at 22+6 gestational weeks suffered from GBS sepsis along with meningitis for the first time on 100 d.The mother was negative for rectovaginal GBS screening.Breast milk wasn't tested as no signs of mastitis were found.The neonate recovered from the first GBS sepsis after 14 days of antibiotic treatment,then returned to breastfeeding.On 126 d,GBS sepsis reoccurred in this baby.Fresh breast milk culture yielded GBS which was identical with the GBS strains isolated from the neonatal blood in antimicrobial susceptibility.After recovery from the second episode,the baby was partially breastfed again without further relapses of late-onset GBS sepsis.(2) Literature review:64 cases of late-onset GBS infections that transmitted via breast milk were retrieved from PubMed,while no Chinese cases had been reported.Clinical data of the 65 cases (including this case) were reviewed and the results revealed that contaminated breast milk was associated with late-onset GBS infections.The reported relapse rate of GBS infections transmitted via breast milk was 25％ for two episodes and 7％ for three episodes.Conclusions GBS contaminated breast milk could potentially cause late-onset GBS sepsis in infants and further studies are required to identify the underlying mechanisms.

Objective: To analyze the clinical characteristics of allergic reactions in patients with colorectal cancer after routine premed-ication with dexamethasone (5 mg) before chemotherapy with an oxaliplatin-containing regimen and to provide a reference for reduc-ing the risk of oxaliplatin allergy. Methods: Retrospective analysis of 242 patients with colorectal cancer who received chemotherapy with an oxaliplatin-containing regimen at the Changzhou Cancer Hospital of Soochow University from January 2014 to October 2017 was performed, and the incidence of allergic reactions was calculated. The associations between multiple factors and allergic reactions were then assessed using univariate analysis. The independent factors of allergic reactions were assessed using multivariate Logistic analysis, and the treatment outcome of oxaliplatin rechallenge in allergic patients was discussed. Results: A total of 242 patients were studied. They received routine premedication with dexamethasone (5 mg) before chemotherapy with an oxaliplatin-containing regi-men. Twelve (4.9%) patients had type I allergic reactions, with a median onset time of 6 (5.5-10.5) cycles and a median cumulative dose of 895 (716.5-1 075.0) mg. Multivariate analysis identified undergoing an oxaliplatin-free interval as an independent risk factor (P=0.04). Rechallenging patients with prophylactic agents was successful in 1 (33.3%) of 3 patients who completed their treatment. Conclusions: Routine low-dose dexamethasone premedication before oxaliplatin administration is safe and exhibited a lower inci-dence of hypersensitivity reactions than that reported in literature. An oxaliplatin-free interval may increase the risk of hypersensitivity reactions. Caution should be exercised while rechallenging allergic patients with oxaliplatin.

Objective To evaluate the relationship between neuropeptide S (NPS) in the amygdala and 5-hydroxytryptamine (5-HT) and GABA in spinal dorsal horns of rats with neuropathic pain.Methods Eighty pathogen-free healthy male Sprague-Dawley rats,weighing 200-260 g,aged 2 months,were divided into 4 groups (n =20 each) using a random number table:sham operation group (group Sham),neuropathic pain group (group NP),low dose NPS group (group L-NPS) and high dose NPS group (group H-NPS).The neuropathic pain model was established by left L5,6 spinal nerve ligation (SNL) in anesthetized rats.NPS was injected into the bilateral amygdala at 3,6,9,12,15 and 18 days after SNL in LNPS group (10 pmol per side) and H-NPS group (100 pmol per side).The mechanical paw withdrawal threshold (MWT) and thermal paw withdrawal latency (TWL) were measured at 2 days before SNL and 1,4,7,11,14,17 and 21 days after SNL.Five rats were selected at 7,14 and 21 days after SNL and sacrificed,and the lumbar segment (L5) of the spinal cord was removed for detection of the expression of 5-HT and GABA in spinal dorsal horns by immunofluorescence histochemistry.Results Compared with group Sham,the MWT was significantly decreased,the TWL was shortened,and the expression of 5-HT and GABA in spinal dorsal horns was down-regulated in NP,L-NPS and H-NPS groups (P＜0.05).Compared with group NP,the MWT was significantly increased,the TWL was prolonged,and the expression of 5-HT and GABA in spinal dorsal horns was up-regulated in L-NPS and H-NPS groups (P＜0.05).Compared with group L-NPS,the MWT was significantly increased,the TWL was prolonged,and the expression of 5-HT and GABA in spinal dorsal horns was up-regulated in group H-NPS (P＜0.05).Conclusion The spinal mechanism of endogenous analgesia induced by NPS in the amygdala may be related to up-regulation of the expression of 5-HT and GABA in spinal dorsal horns of rats with neuropathic pain.