In infants with severe bronchopulmonary dysplasia(sBPD),severe pulmonary lobar emphysema may occur as a complication,contributing to significant impairment in ventilation.Clinical management of these infants is extremely challenging and some may require lobectomy to improve ventilation.However,prior to the lobectomy,it is very difficult to assess whether the remaining lung parenchyma would be able to sustain adequate ventilation postoperatively.In addition,preoperative planning and perioperative management are also quite challenging in these patients.This paper reports the utility of selective bronchial occlusion in assessing the safety and efficacy of lobectomy in a case of sBPD complicated by severe right upper lobar emphysema.Since infants with sBPD already have poor lung development and significant lung injury,lobectomy should be viewed as a non-traditional therapy and be carried out with extreme caution.Selective bronchial occlusion test can be an effective tool in assessing the risks and benefits of lobectomy in cases with sBPD and lobar emphysema.However,given the technical difficulty,successful application of this technique requires close collaboration of an experienced interdisciplinary team.

The research advancements in probes for deep-tissue imaging and adaptive optical imaging technologies are summarized,aiming to offer a new perspective for life science and interdisciplinary research.The review firstly gives an introduction on the probes emitting in the near-infrared-Ⅱ region,including fluorescence,bioluminescence,chemiluminescence,and persistent luminescence,and then elaborates direct sensing methods for rapid measurement and correction of wavefront distortions,as well as indirect sensing methods for correcting complex optical aberrations.The continuous updating of the above techniques and methods has enabled optical imaging to successfully penetrate deeper tissues with a remarkable reduction of background noise for higher image quality.

Metal-organic frameworks (MOFs) are crystalline materials with a multidimensional porous network structure, formed through coordination bonds with metal ions as nodes and organic ligands as connecting bridges. Due to their excellent physicochemical properties, MOFs have extensive applications in the field of biomedicine, ranging from antibacterials, drug carriers, imaging to sensors. Nanoscale metal-organic frameworks (nMOFs), commonly utilized drug carriers, can gain enhanced safety, targeted delivery, and superior therapeutic effect through endocytosis. In this review, we comprehensively summarize the factors influencing the endocytosis of nMOFs, focusing on three key physicochemical properties, particle size, morphology and surface modification. Based on different illness models, the review succinctly summarizes the latest advancements in understanding the endocytosis pathways of nMOFs while critically reflecting on the inherent limitations of current research methods. Lastly, the review offers valuable insights into future research methodologies and objectives, aiming to lay the groundwork and provide meaningful guidance for the synthesis and development of nMOFs as promising versatile drug carriers.

AIM To establish a two reference substances for determination of multiple components(TRSDMC)method for the simultaneous content determination of neochlorogenic acid,chlorogenic acid,cryptochlorogenic acid,luteolin-7-O-glucuronide,isochlorogenic acid B,isochlorogenic acid A,isochlorogenic acid C,deoxyelephantopin,isodeoxyelephantopin,isoscabertopin and scabertopin in Elephantopus scabre L..METHODS The analysis was performed on a 35℃thermostatic Waters Symmetry C18,Phenomenex C18,Agilent ZORBAX Eclipse Plus C18 columns(4.6 mm×250 mm,5.0 μm),with the mobile phase comprising of acetonitrile and 0.1%phosphoric acid flowing at 1.0 mL/min in a gradient elution manner,and the detection wavelengths were set at 220,326 nm.Chlorogenic acid was used as an internal standard to calculate the relative correction factors of neochlorogenic acid,cryptochlorogenic acid,luteolin-7-O-glucuronide,isochlorogenic acid B,isochlorogenic acid A and isochlorogenic acid C,while isodeoxyelephantopin was used as an internal standard to calculate the relative correction factors of deoxyelephantopin,scabertopin and isoscabertopin,after which the content determination was made.Subsequently,cluster analysis,principal component analysis and orthogonal partial least squares-discriminant analysis were conducted.RESULTS Eleven constituents showed good linear relationships within their own ranges(r≥0.999 0),whose average recoveries were 95.3%-103.4%with the RSDs of 0.32%-3.45%.The result obtained by TRSDMC approximated those obtained by external standard method.Isochlorogenic acid A,isochlorogenic acid C,isochlorogenic acid B,chlorogenic acid,luteolin-7-O-glucuronide and cryptochlorogenic acid were taken as quality differential constituents.CONCLUSION This reliable and stable method can be used for the quality control of E.scabre.

Intracellular neurofibrillary tangles resulting from abnormal hyperphosphorylation of Tau protein constitute one of the principal pathological markers of Alzheimer′s disease. Existing studies have indicated that BSc3094 is an efficacious inhibitor of Tau protein aggregation, capable of binding to Tau protein, inhibiting Tau protein phosphorylation, and enhancing cell viability concurrently, holding significant potential in treating Alzheimer′s disease. Nevertheless, due to the presence of the blood-brain barrier, it is challenging for drugs to penetrate the brain and exert their effects, and whether BSc3094 can treat Alzheimer′s disease by inhibiting Tau protein aggregation has not been profoundly investigated. Hence, in this study, small-sized (PLGA) nanoparticles were fabricated through the stirring method. BSc3094 was loaded into the nanoparticles (PLGA@BSc). To further enhance the brain entry efficiency of PLGA nanoparticles, a pathological BBB-targeting peptide was modified on the surface to obtain PLGA@BSc@K. In this study, the stability, cytotoxicity, and pathological targeting of the nanosystem were characterized. The particle size of the nanosystem was about 90 nm, which was negatively charged. The results demonstrated that the particle size of the nanoparticles did not fluctuate conspicuously within 168 h, and the stability was favorable. PLGA and BSc3094 had no notable impact on cell viability and displayed low cytotoxicity. At 1 and 4 h, it was observed that the uptake of targeted modified nanoparticles by cells in pathological states augmented, suggesting that PLGA@BSc@K had an excellent pathological blood-brain barrier targeting effect. This study provides a novel concept for the targeting of BSc3094 nanoparticles in the brain and the treatment of Alzheimer′s disease.

Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.

【Objective:】 To study the application and effect of peer education mode in the nursing of patients with urinary tumor, and explore the ways to improve the quality of clinical care and the humanistic significance of this mode in clinical nursing. 【Methods:】 84 patients with urological tumors who received surgical treatment in urology department of a third-class hospital from March 2021 to December 2021 were randomly divided into the control group and the experimental group, with 42 patients in each group. The subjects in control group adopted routine intervention mode.The subjects in experimental group integrated the peer education program into the routine nursing mode.SAS and SDS scales were used to evaluate patients’ state of anxiety and depression, and the degree of nursing satisfaction. 【Results:】 The scores of SAS and SDS in the experimental group were significantly lower than that of the experimental group before intervention and the control group after intervention (P<0.05).The number of very satisfied, moderately satisfied and dissatisfied cases in the control group was 12, 29 and 1 respectively, and in the experimental group was 19, 23 and 0 respectively. The difference was statistically significant (P<0.05). 【Conclusion:】 Adopting peer education with humanistic care significance can effectively alleviate patients’ preoperative anxiety, depression and other adverse mental state, reduce preoperative stress, and provide a new way for nursing quality.

Intracerebral delivery of drugs for the treatment of central nervous system disorders is usually limited by the blood-brain barrier (BBB). Transdermal drug delivery systems (TDDS) have the advantage of improving patient compliance and avoiding first-pass effects compared to intravenous, oral and intranasal drug delivery, and are an emerging non-invasive drug delivery route that facilitates long-term drug delivery to patients. The discovery of direct subcutaneous targeting of lymphatic pathways to brain tissue has made TDDS a new brain-targeted drug delivery strategy. At the same time, the development of nano-delivery technology has further facilitated the application of TDDS for targeted drug delivery to the brain. This review summarizes the mechanism of transdermal drug delivery into the brain and the application of TDDS in the treatment of brain diseases, providing new ideas and methods for the treatment of central nervous system diseases.

In order to learn from the advanced experience of postgraduate education in foreign first-class universities, Harvard University, Johns Hopkins University and London School of Hygiene and Tropical Medicine were selected as the objects in this study to analyze and compare the advantages and characteristics of their postgraduate training model, curriculum setting and teaching resources, thereby providing suggestions for the reform and development in the cultivation of master of public health and preventive medicine in China.

OBJECTIVES: To investigate the incidence of extrauterine growth retardation (EUGR) and its risk factors in very preterm infants (VPIs) during hospitalization in China. METHODS: A prospective multicenter study was performed on the medical data of 2 514 VPIs who were hospitalized in the department of neonatology in 28 hospitals from 7 areas of China between September 2019 and December 2020. According to the presence or absence of EUGR based on the evaluation of body weight at the corrected gestational age of 36 weeks or at discharge, the VPIs were classified to two groups: EUGR group (n=1 189) and non-EUGR (n=1 325). The clinical features were compared between the two groups, and the incidence of EUGR and risk factors for EUGR were examined. RESULTS: The incidence of EUGR was 47.30% (1 189/2 514) evaluated by weight. The multivariate logistic regression analysis showed that higher weight growth velocity after regaining birth weight and higher cumulative calorie intake during the first week of hospitalization were protective factors against EUGR (P<0.05), while small-for-gestational-age birth, prolonged time to the initiation of total enteral feeding, prolonged cumulative fasting time, lower breast milk intake before starting human milk fortifiers, prolonged time to the initiation of full fortified feeding, and moderate-to-severe bronchopulmonary dysplasia were risk factors for EUGR (P<0.05). CONCLUSIONS It is crucial to reduce the incidence of EUGR by achieving total enteral feeding as early as possible, strengthening breastfeeding, increasing calorie intake in the first week after birth, improving the velocity of weight gain, and preventing moderate-severe bronchopulmonary dysplasia in VPIs.
Female ; Fetal Growth Retardation ; Gestational Age ; Hospitalization ; Humans ; Incidence ; Infant ; Infant, Newborn ; Infant, Premature ; Infant, Very Low Birth Weight ; Prospective Studies ; Risk Factors