Objective To explore the effects of proteasome 20S subunit beta 8 (PSMB8) on the proliferation,migration,and invasion of clear cell renal cell carcinoma (ccRCC) cells and whether PSMB8 promotes tumor progression by activating the mitogen-activated protein kinase kinase (MEK)/extracellular signal-regulated kinase (ERK) signaling pathway. Methods The Cancer Genome Atlas was employed to analyze the mRNA levels of PSMB8 in ccRCC and normal tissue,and the expression levels of PSMB8 in ccRCC tissue and cells were determined by real-time quantitative PCR,Western blotting,and immunohistochemistry.Furthermore,the cell lines with stable overexpression and knockdown of PSMB8 were constructed.The CCK-8 assay and colony formation assay were employed to examine the cell proliferation,and the wound healing assay and Transwell assay were employed to examine the invasion and migration of cells.Kyoto Encyclopedia of Genes and Genomes pathway enrichment was performed to analyze the co-expressed genes of PSMB8.Western blotting was used to measure the phosphorylation levels of the proteins in the MEK/ERK signaling pathway.Finally,the rescue experiment was carried out with the ERK agonist C16-PAF. Results Compared with the normal tissue,the ccRCC tissue showed up-regulated mRNA and protein levels of PSMB8 (both P<0.001),which were associated with the TNM stage of patients with ccRCC (P<0.001).Compared with the negative control group,overexpression of PSMB8 promoted the proliferation (P=0.021,P=0.039),migration and invasion (all P<0.001) of 786-O and ACHN cells,and the knockdown of PSMB8 inhibited the proliferation (P=0.022,P=0.005),migration and invasion (all P<0.001) of 786-O and ACHN cells.The pathway enrichment analysis of co-expressed genes of PSMB8 predicted the mitogen-activated protein kinase signaling pathway (P<0.001).After the knockdown of PSMB8,786-O and ACHN cells showed lowered phosphorylation levels of MEK1/2 (P=0.017,P=0.016) and ERK1/2 (P=0.010,P=0.040) and down-regulated transcription levels of ERK downstream factors c-Myc (P=0.043,P=0.038),c-Fos (P=0.025,P=0.008),and CyclinD1 (P=0.006,P=0.047).Compared with the ERK agonist C16-PAF group,the PSMB8 knockdown + C16-PAF group showed inhibited proliferation (P=0.003,P=0.002),migration and invasion (all P<0.001) of 786-O and ACHN cells. Conclusion PSMB8 may promote the proliferation,migration,and invasion of ccRCC cells by activating the MEK/ERK signaling pathway.
Objective To explore the effect and mechanism of uric acid (UA) in regulating the larval growth and development of Drosophila melanogaster. Methods A total of 1350 newly hatched first-instar larvae of wild-type Drosophila melanogaster (W1118) were collected,and the Drosophila melanogaster model of hyperuricemia was constructed with a high purine diet.The larvae were assigned into three groups (n=150):control (standard corn meal medium),low-dose adenine (corn meal medium containing 0.05% adenine),and high-dose adenine (corn meal medium containing 0.10% adenine),and two parallel groups were set up.The growth and development of larvae in each group was observed,and the UA and hormone levels were measured.In addition,the expression levels of genes involved in growth and development were determined. Results Compared with the control group,the low- and high-dose adenine groups showed elevated UA levels (both P<0.001) and prolonged developmental period (P=0.024,P<0.001).The high-dose adenine group showed decreased survival rate,pupation rate,and eclosion rate and elevated levels of juvenile hormone (JH) and 20-hydroxyecdysone (20E) (all P<0.001).The PCR results showed that compared with the control group,high-dose adenine upregulated the mRNA levels of reactive oxygen species (ROS),forkhead box O (FOXO),and mammalian target of rapamycin (mTOR) while downregulating the mRNA levels of Sestrin,mTOR complex 1(mTORC1),and AMP-activated protein kinase (all P<0.001). Conclusion High concentrations of UA may promote the expression of ROS/FOXO/mTORC1/mTOR signaling pathway by regulating the levels of JH and 20E,thereby inhibiting the larval growth and development of Drosophila melanogaster.
Objective To explore the mechanism of butylphthalide (NBP) in regulating microglia activation and inflammatory cytokine expression in the hippocampus of the mouse model of delayed encephalopathy after carbon monoxide poisoning (DEACMP). Methods Wild-type C57 adult mice with normal cognitive function were selected,and DEACMP was modeled by static inhalation of carbon monoxide.The mice were randomized into three groups:DEACMP,control,and NBP.The NBP group was administrated with NBP suspension at 6 mg/kg by gavage for 21 days,and the DEACMP and control groups were administrated with the same amount of vegetable oil by gavage.The hippocampal injury was observed by HE staining.The protein level of ionized calcium-binding adapter molecule 1 (IBA1) was determined by Western blotting,and the levels of downstream inflammatory cytokines were measured by ELISA. Results Compared with the control group,the DEACMP and NBP groups showed prolonged escape latency (P=0.001,P=0.029),reduced nerve cells (P=0.001,P=0.035),up-regulated expression of IBA1 (P=0.001,P=0.042),increased mean fluorescence intensity of IBA1 (P=0.001,P=0.021),and elevated levels of tumor necrosis factor-α (TNF-α) (P=0.002,P=0.024),interleukin (IL)-6 (P=0.001,P=0.015),and IL-1β (P=0.001,P=0.023).Compared with the DEACMP group,the NBP group showed shortened escape latency (P=0.025),increased nerve cells (P=0.039),down-regulated expression of IBA1 (P=0.035),decreased average fluorescence intensity of IBA1 (P=0.031),and lowered levels of TNF-α (P=0.028),IL-6 (P=0.037),and IL-1β (P=0.034). Conclusion NBP can inhibit the activation of microglia and reduce the expression of inflammatory factors,thereby alleviating cognitive dysfunction and brain tissue damage caused by DEACMP.
Objective To develop the knowledge,attitude,and practice evaluation scale for teachers’ early childhood sex education and analyze the reliability and validity of the scale,providing evaluation tools for the research on teachers’ early childhood sex education. Methods On the basis of relevant guidelines,publications,and the theory of knowledge,attitude,and practice,a preliminary pool of items for the scale was formed by group discussions.The scale was drafted after two rounds of Delphi expert consultation.In May 2023,stratified cluster sampling was conducted,and 535 preschool teachers from Changshou District,Chongqing were selected for a survey.Cronbach’s α coefficient,split-half reliability,exploratory factor analysis,and content validity were adopted to assess the reliability and validity of the scale. Results An evaluation scale for teachers’ early childhood sex education was formulated,involving 27 items in 3 dimensions of knowledge,attitude,and practice.The total Cronbach’s α coefficient of the scale was 0.875,and that of the knowledge,attitude,and practice dimensions were 0.902,0.743,and 0.879,respectively.The total split-half reliability of the scale was 0.937,and that of the knowledge,attitude,and practice dimensions were 0.934,0.821,and 0.912,respectively.The content validity of the scale was good,with a factor loading range of 0.500-0.836 and a cumulative variance contribution rate of 61.57.The average score of teachers’ knowledge,attitude,and practice in sex education was 72.85±7.13,with a good rate of 70.84%. Conclusions The developed scale for evaluating teacher’s early childhood sex education demonstrates good reliability and validity,and it can be used to evaluate the teachers’ knowledge,attitude,and practice in early childhood sex education.The evaluation results indicate that teachers have low levels of knowledge,attitude,and practice in sex education,and relevant departments need to carry out training on the sex education for young children.
Objective To analyze the risk factors of septic cardiomyopathy (SC),and to construct and evaluate the risk prediction model of SC. Methods The clinical data of patients with sepsis were extracted from MIMIC-Ⅳ database and randomized into a training set and a validation set at a ratio of 7 to 3.According to the presence or absence of SC,the patients were assigned into SC and non-SC groups.The independent risk factors of SC were determined by univariate and multivariate Logistic regression analysis,and a risk prediction model and a nomogram were established.The area under the receiver operating characteristic curve (AUC),calibration curve,and decision curve analysis (DCA) were employed to evaluate the distinguishing degree,calibration,and clinical applicability of the model,respectively. Results A total of 2628 sepsis patients were enrolled in this study,including 1865 patients in the training set and 763 patients in the validation set.There was no significant difference in the incidence of SC between the training set and the validation set (58.98% vs. 62.25%,P=0.120).Except chronic obstructive pulmonary disease (P=0.015) and length of stay in intensive care unit (P=0.016),there was no significant difference in other clinical indicators between the two groups (all P>0.05).Logistic regression analysis showed that coronary heart disease (P=0.028),heart failure (P<0.001),increased neutrophil count (P=0.001),decreased lymphocyte count (P=0.036),increased creatine kinase isoenzyme (P<0.001),and increased blood urea nitrogen (P=0.042) were independent risk factors for SC.The AUC of the nomogram prediction model in the training set and validation set was 0.759 (95% CI=0.732-0.785) and 0.765 (95% CI=0.723-0.807),respectively.The established model showcased good fitting degrees in both data sets (training set:P=0.075;validation set:P=0.067).The DCA results showed that the nomogram prediction model had good clinical applicability. Conclusion The nomogram prediction model based on basic diseases and clinical biochemical indicators can effectively predict the risk of SC occurrence.
Objective To explore the risk factors for the returning of pediatric liver transplant recipients to the intensive care unit (ICU) and provide reference for the clinical decision-making after surgery. Methods A retrospective analysis was conducted with the information of all the pediatric patients who underwent liver transplantation in Ren Ji Hospital,Shanghai Jiao Tong University School of Medicine and were returned to the ICU from 2019 to 2021.The patients returned to the ICU during hospitalization and the reasons for the return were recorded.Each patient of ICU return was matched with three pediatric patients who did not return to the ICU during hospitalization.The basic information,the vital signs and laboratory indicators on the day of transfer from ICU,immunosuppressants and drug concentrations were compared between the two groups.Multivariate Logistic regression analysis was performed to explore the risk factors for the returning of pediatric liver transplant recipients to the ICU. Results The returning rate of pediatric liver transplant recipients to the ICU was 4.36%,and it was 16.00% within 48 h.The main reasons for the return included respiratory complications,abdominal infections,and hepatic vascular occlusion.Multivariate Logistic regression analysis showed that post-operative red blood cell transfusion (OR=4.554,95%CI=1.743-11.901,P=0.002) and high serum level of uric acid (OR=1.005,95%CI=1.001-1.009,P=0.014) were the risk factors for returning to the ICU.High diastolic blood pressure (OR=0.922,95%CI=0.885-0.960,P<0.001) and high total protein level (OR=0.937,95%CI=0.891-0.986,P=0.012) were the protective factors for returning to the ICU. Conclusion Post-operative red blood cell transfusion and high serum level of uric acid are independent risk factors for the returning of pediatric liver transplant recipients to the ICU.
Objective To explore the research hotspots on systemic lupus erythematosus (SLE) in pregnancy based on the bibliometric analysis of the related articles published from 2018 to 2023 and provide directions for the future research in this field. Methods PubMed,Web of Science,and Embase were searched for the articles on SLE in pregnancy that were published from January 1,2018 to December 31,2023.VOSviewer was used to visualize the high-frequency keywords in the selected articles. Results A total of 266 articles were selected,from which 25 high-frequency keywords were extracted.The bibliometric analysis showed that the available studies about SLE in pregnancy mainly focused on maternal complications,maternal and fetal outcomes,and medications.The studies were limited regarding the predictors,autoimmunity,immunotherapy,and long-term outcomes of offspring. Conclusion Maternal complications,maternal and fetal outcomes,and medications are currently hotspots in the research on SLE in pregnancy,while predictors,autoimmunity,immunotherapy,and long-term outcomes of offspring may become future research directions.
Objective To construct a continuous nursing quality evaluation indicator system for inflammatory bowel disease patients and provide a basis for the evaluation of continuous nursing quality. Methods On the basis of Donabedian’s three-dimensional (structure,process,and outcome) quality structure,we employed literature review,qualitative interview,Delphi method,and hierarchical analysis to determine the content and weights of indicators of continuous nursing quality for the patients with inflammatory bowel disease. Results A total of 15 experts completed 2 rounds of consultation,which had the questionnaire recovery rates of 100%,the expert authority coefficients of 0.930 and 0.919,and the Kendall harmony coefficients of 0.149 and 0.177 (both P<0.001),respectively.The established nursing quality evaluation indicator system included 3 first-level indicators,10 second-level indicators,and 39 third-level indicators. Conclusion The continuous nursing quality evaluation indicator system for the patients with inflammatory bowel disease that was constructed in this study was reasonable,reliable,and practical,providing reference for evaluating the continuous nursing quality for the patients with inflammatory bowel disease.
During his studies at the Peking Union Medical College (1921-1929),Chen Zhiqian formed his thoughts on public health under the influences of modern medical education and the advanced thinking of the times,which laid an ideological foundation for his later engagement in rural health care and reflected the medical progress in China at that time.In the 1920s,Chen Zhiqian’s thoughts on public health mainly encompassed five aspects.First,health was a cornerstone of the country’s wealth and people’s well-being.Second,he belived in comprehensive “big medicine” which emphasized the combination of prevention and treatment.Third,he advocated the return of medicine to the state and the building of a medical system covering all people.Fourth,he advocated maternal training and institutional standardization,emphasizing child health protection.Fifth,he was committed to the popularization of health science and advocated health education reform.Summarizing the above five aspects is of great significance for enriching and improving the academic evaluation about Chen Zhiqian and provides a reference for today’s work on public health.
Objective To summarize the experience of integrative palliative care at Peking Union Medical College Hospital and provide a reference for promoting the integrative palliative care model. Methods Twenty cases receiving integrative palliative care at Peking Union Medical College Hospital were collected.The clinical characteristics,reasons for initiating integrative palliative care,the process of integrative palliative care,and feedback from these cases were summarized. Results Insomnia (11 cases,55%) and pain (9 cases,45%) were the most common symptoms requiring control in the 20 cases.The integrative palliative care team assisted in medical decision-making for 17 cases (85%),prepared end-of-life for 9 cases (45%),assisted in the transfer for 3 cases (15%),and provided comfort care for all the 20 cases (100%). Conclusions The integrative palliative care model can help alleviate suffering in end-of-life patients and provide support to patients’ families and the original medical teams.This model is worth further promotion within class A tertiary hospitals.
Objective To describe the palliative care model in the Peking Union Medical College Hospital and provide a reference for the palliative care work in other general hospitals. Methods A field study was carried out at the Palliative Medicine Center of Peking Union Medical College Hospital.Data were collected by participatory observation,in-depth interviews,and physical collection,and the thematic analysis was performed to refine the themes and analyze the results. Results A total of 9 themes were obtained and the “Banyan Tree Model” was summarized. Conclusion The palliative care model in the Peking Union Medical College Hospital is suitable for the development of palliative care in general hospitals and has a reference value.
Sepsis,a syndrome characterized by organ dysfunction caused by infection,exhibits high incidence and mortality.The pathogenesis of sepsis is complex and involves a cascade of immune reactions,with no specific drugs currently available.Sepsis is mainly treated with Western medical supportive therapies such as antibiotics,hemodynamic management,and mechanical ventilation.However,the occurrence of immune cascades significantly increases patients’ vulnerability to secondary infections,leading to septic shock and unfavorable prognoses.International consensus indicates that initiating dynamic monitoring of patients’ immune function within 48 h post-sepsis diagnosis can effectively decelerate sepsis progression.Extensive studies have indicated that macrophages,serving as the first line of defense in the innate immune system against pathogens,play a vital role in treating immune system disorders by regulating macrophage polarization and the ratio of cytokines activated.Mitophagy,a hot topic in recent years,has increasingly been shown to play a crucial role in regulating inflammatory signal transduction.Promoting mitophagy during the stage of cytokine storm can mitigate uncontrolled infection and excessive inflammation in sepsis,and inhibiting mitophagy during immunosuppression can enhance host immunity,facilitate bacterial clearance,and improve the survival rate of patients.The idea of treating disease before its onset in traditional Chinese medicine (TCM) coincides with the current consensus among sepsis experts on prevention and interception.The TCM therapies such as extracts of Chinese medicine decoction pieces,TCM compound prescriptions,and acupuncture and moxibustion have the effects of clearing heat and detoxifying,activating blood and resolving stasis,reinforcing healthy qi and consolidating root,and purging.These approaches dynamically regulate the levels of mitophagy-related proteins,such as phosphatase and tension homology-induced putative kinase 1,Parkin-E3 ubiquitin protein ligase,light chain 3,and p62,while maintaining a suitable ratio between M1 and M2 macrophages.Consequently,they effectively prevent,halt,or even reverse the progression of sepsis,offering a novel perspective on sepsis management by emphasizing prevention before disease onset and controlling development of existing disease.
Ferroptosis is a form of regulated cell death that depends on iron and reactive oxygen species.Different from apoptosis,necrosis,and autophagy,ferroptosis is characterized by the accumulation of lipid peroxides in cells.Studies have discovered that ferroptosis is closely associated with the occurrence and development of tumors and inducing ferroptosis in tumor cells can enhance the therapeutic effects of drugs on tumors.This article summarizes the latest research progress in ferroptosis regarding its mechanisms and associations with tumors,aiming to provide a reference for further understanding the interaction mechanisms between ferroptosis and tumors and offering new insights and targets for the treatment of tumors.
Age-related hearing loss (ARHL) is a common chronic disease that poses a serious threat to the physical and mental health of the elderly in an aging society.It is a sensorineural hearing loss characterized by the loss of auditory hair cells,stria vascularis lesions,apoptosis of spiral ganglia,and degeneration of the auditory central nervous system,reducing the quality of life of the patients.This article reviews the research progress in the relationship of ARHL with Alzheimer’s disease,depression,and frailty,as well as the daily intervention in ARHL.This review aims to improve people’s awareness and attention to the health hazards of ARHL and to delay the occurrence and development of ARHL by implementing daily intervention measures to form a healthy lifestyle.
The prognosis of papillary thyroid carcinoma (PTC) is highly dependent on gene mutations and pathologic features.The common gene mutations in PTC include BRAF V600E,RET/PTC rearrangement,and RAS mutations.These mutations have been suggested to be associated with an increased risk of recurrence,poorer efficacy of postoperative radioactive iodine therapy,and reduced survival.The pathologic subtypes of PTC include classic,follicular,tall cell,hobnail,columnar cell,diffuse sclerosing,solid/trabecular,oncocytic,Warthin-like,clear cell,and spindle cell subtypes,which have different aggressiveness and linked with varied clinical prognosis.Therefore,detecting the gene mutations and pathologic subtypes of PTC is of great importance for therapeutic regimen selection and prognosis evaluation.Ultrasound imaging with non-invasiveness,convenience,and high resolution has become the primary examination method for the diagnosis and treatment of thyroid cancer.This paper reviews the correlations of gene mutations and pathologic subtypes with the ultrasound features of PTC,aiming to give new insights into the application of ultrasound imaging in predicting gene mutations and pathologic subtypes of PTC before surgery as well as provide new ideas for accurate assessment of preoperative prognosis.
Idiopathic multicentric Castleman disease (iMCD) is a rare and life-threatening lymphoproliferative disorder involving systemic inflammatory symptoms,polyclonal lymphoproliferation,cytopenia,and multiple organ dysfunction.Although interleukin-6-mediated cytokine storm is thought to be the key driver of iMCD,more than 50% of the patients fail to respond to the treatments targeting interleukin-6 or its receptors.This underscores the urgent need to identify other cytokines and pathogenic pathways that may underlie iMCD.Fortunately,recent years have witnessed notable research advances in the pathogenesis of iMCD.This article reviews the latest progress in this field,aiming to provide a theoretical foundation for further research and facilitate the optimization of treatment strategies to improve the prognosis of the patients.
Breath sounds can reflect the physiological and pathological conditions of the lungs and airways.Due to the differences in acoustic characteristics of breath sounds between healthy children and those with different respiratory diseases,analyzing breath sounds may provide important information for the diagnosis and treatment of respiratory diseases in children.With the development of digital auscultation,children’s breath sounds have gradully become a research focus.This article summarizes the recent research progress in breath sound analysis for the diagnosis and treatment of common respiratory diseases in children,offering reference for the research in related fields.
Type 2 diabetes mellitus,a common metabolic disease,has become a global public health challenge due to its high morbidity and disability.With the rise of mobile healthcare,the advancement of emerging technologies such as artificial intelligence,and the popularization of the concept of personalized health,the field of smart wearable devices is growing rapidly.Wearable devices are categorized into two types:medical and fitness wearable devices,which have been applied in the monitoring and regulation of blood glucose and the modulation of healthy lifestyles of patients with type 2 diabetes mellitus.This article summarizes the research progress in the application of wearable devices in patients with type 2 diabetes mellitus in the past 8 years,with a view to promoting the application of wearable devices and realizing the whole life-cycle health management of patients with type 2 diabetes mellitus.
The joints have abundant sensory nerves and sympathetic nerve fibers,which convert physical and chemical stimuli in the joints into nerve impulses that are transmitted to the central nervous system and participate in the hypersensitivity reactions of inflammatory joint diseases such as osteoarthritis (OA).This paper summarizes the distribution and functional characteristics of intra-articular nerves and focuses on the mechanism of the vagus-sympathetic autonomic circuit in regulating the immune microenvironment in joints in the case of OA.In addition,intra-articular inflammatory cytokines represented by tumor necrosis factor-α and interleukin-6 directly or indirectly induce sensory nerve action potential and activate the pain transduction pathway from the local joint to the central nervous system.The sensory nerves in the joints in the case of OA are also involved in the recruitment of immune cells and inflammatory cytokines.This neuro-immune interaction model not only provides a variety of new targets for the treatment of OA but also suggests that the treatment of OA should adopt a holistic view with comprehensive consideration of the nerve and immune microenvironment in the bone and joint and their mutual influences.
Thyroid hormone resistance syndrome complicated with papillary thyroid cancer is clinically rare.Madelung’s disease is a rare disorder of lipid metabolism.We analyzed the clinical data of a case of thyroid hormone resistance syndrome complicated with papillary thyroid carcinoma and Madelung’s disease,performed whole-exon sequencing for the patient’s peripheral blood samples,and retrospectively analyzed the relevant literature.This review is expected to provide experience for clinical diagnosis and treatment.
Kaposi varicelliform eruption (KVE) refers to an infectious skin disease that occurs after infection with herpes simplex virus,Coxsackie virus,or other viruses on the basis of preexisting skin diseases,commonly observed in the patients with eczema.It is rare for the patients with erythroderma to be complicated with KVE,and symptoms are often atypical,which pose a challenge to the diagnosis and treatment.This article reports a case of erythroderma complicated with KVE,aiming to raise awareness of clinicians in treating this disease.
Thyroglossal duct papillary carcinoma is extremely rare in clinical practice.This article reports a case of a thyroglossal duct cyst complicated by thyroid papillary carcinoma,while also reviewing the relevant literature.It summarizes the clinical manifestations,imaging characteristics,and pathological features of thyroglossal duct papillary carcinoma and discusses the relationship between thyroglossal duct cysts,malignant transformation of thyroglossal duct cysts,and thyroid papillary carcinoma.