Alzheimer’s disease (AD) is a central neurodegenerative disease characterized by progressive cognitive decline and memory impairment in clinical. Currently, there are no effective treatments for AD. In recent years, a variety of therapeutic approaches from different perspectives have been explored to treat AD. Although the drug therapies targeted at the clearance of amyloid β-protein (Aβ) had made a breakthrough in clinical trials, there were associated with adverse events. Neuroinflammation plays a crucial role in the onset and progression of AD. Continuous neuroinflammatory was considered to be the third major pathological feature of AD, which could promote the formation of extracellular amyloid plaques and intracellular neurofibrillary tangles. At the same time, these toxic substances could accelerate the development of neuroinflammation, form a vicious cycle, and exacerbate disease progression. Reducing neuroinflammation could break the feedback loop pattern between neuroinflammation, Aβ plaque deposition and Tau tangles, which might be an effective therapeutic strategy for treating AD. Traditional Chinese herbs such as Polygonum multiflorum and Curcuma were utilized in the treatment of AD due to their ability to mitigate neuroinflammation. Non-steroidal anti-inflammatory drugs such as ibuprofen and indomethacin had been shown to reduce the level of inflammasomes in the body, and taking these drugs was associated with a low incidence of AD. Biosynthetic nanomaterials loaded with oxytocin were demonstrated to have the capability to anti-inflammatory and penetrate the blood-brain barrier effectively, and they played an anti-inflammatory role via sustained-releasing oxytocin in the brain. Transplantation of mesenchymal stem cells could reduce neuroinflammation and inhibit the activation of microglia. The secretion of mesenchymal stem cells could not only improve neuroinflammation, but also exert a multi-target comprehensive therapeutic effect, making it potentially more suitable for the treatment of AD. Enhancing the level of TREM2 in microglial cells using gene editing technologies, or application of TREM2 antibodies such as Ab-T1, hT2AB could improve microglial cell function and reduce the level of neuroinflammation, which might be a potential treatment for AD. Probiotic therapy, fecal flora transplantation, antibiotic therapy, and dietary intervention could reshape the composition of the gut microbiota and alleviate neuroinflammation through the gut-brain axis. However, the drugs of sodium oligomannose remain controversial. Both exercise intervention and electromagnetic intervention had the potential to attenuate neuroinflammation, thereby delaying AD process. This article focuses on the role of drug therapy, gene therapy, stem cell therapy, gut microbiota therapy, exercise intervention, and brain stimulation in improving neuroinflammation in recent years, aiming to provide a novel insight for the treatment of AD by intervening neuroinflammation in the future.

A 20-year-old male patient presented to the Department of Dermatology of Peking Union Medical College Hospital with complaints of an 8-year history of facial scarring, swelling of the lower limbs, and a 4-year history of scalp thickening. Physical examination showed thickening furrowing wrinkling of the skin on the face and behind the ears, ciliary body hirsutism, blepharoptosis, and cutis verticis gyrate. Both lower limbs were swollen, especially the knees and ankles. The skin of the palms and soles of the feet was keratinized and thickened. Laboratory examination using bone and joint X-ray showed periostosis of the proximal middle phalanges and metacarpals of both hands, distal ulna and radius, tibia and fibula, distal femurs, and metatarsals.Genetic testing revealed two variants in SLCO2A1, c.1658T > A and c.96+4A > C.Through multidisciplinary consultation, we confirmed the diagnosis of pachydermoperiostosis.

RNA editing, an essential post-transcriptional reaction occurring in double-stranded RNA (dsRNA), generates informational diversity in the transcriptome and proteome. In mammals, the main type of RNA editing is the conversion of adenosine to inosine (A-to-I), processed by adenosine deaminases acting on the RNAs (ADARs) family, and interpreted as guanosine during nucleotide base-pairing. It has been reported that millions of nucleotide sites in human transcriptome undergo A-to-I editing events, catalyzed by the primarily responsible enzyme, ADAR1. In hematological malignancies including myeloid/lymphocytic leukemia and multiple myeloma, dysregulation of ADAR1 directly impacts the A-to-I editing states occurring in coding regions, non-coding regions, and immature miRNA precursors. Subsequently, aberrant A-to-I editing states result in altered molecular events, such as protein-coding sequence changes, intron retention, alternative splicing, and miRNA biogenesis inhibition. As a vital factor of the generation and stemness maintenance in leukemia stem cells (LSCs), disordered RNA editing drives the chaos of molecular regulatory network and ultimately promotes the cell proliferation, apoptosis inhibition and drug resistance. At present, novel drugs designed to target RNA editing(e.g., rebecsinib) are under development and have achieved outstanding results in animal experiments. Compared with traditional antitumor drugs, epigenetic antitumor drugs are expected to overcome the shackle of drug resistance and recurrence in hematological malignancies, and provide new treatment options for patients. This review summarized the recent advances in the regulation mechanism of ADAR1-mediated RNA editing events in hematologic malignancies, and further discussed the medical potential and clinical application of ADAR1.

Objective To investigate the protective mechanism of oxidative stress injury of SD rats NR8383 by budesonide.Methods Rat alveolar macrophages NR8383 were divided into 5 groups:blank group was given serum-free K12 medium without any treatment;lipopolysaccharide(LPS)group was given 2.29 μg·mL-1 LPS standard solution;budesonide group(budesonide),c-Jun inhibitor group(AS601245)and budesonide+c-Jun inhibitor group(budesonide+AS601245)were given budesonide 28.0 μL,c-Jun inhibitor AS601245 2.50 μg,and budesonide 28.0 μL+c-Jun inhibitor AS601245 2.50 μg based on the LPS group,respectively.Cells in 5 groups were incubated in serum-free K12 medium at constant temperature for 24 h.The apoptosis rate at 24 h was examined by cell counting kit-8(CCK-8)assay;c-Jun mRNA expression was detected by real-time quantitative polymerase chain reaction(q-PCR);oxidative stress damage factor reactive oxygen species(ROS),8-hydroxy-2-deoxyguanosine(8-OHdG),glutathione peroxidase(GSH-Px),thioredoxin reductase-1(TRX-1)expression were detected by enzyme-linked immunosorbent assay(ELISA);c-Jun signaling pathway protein expression in each group by Western blot.Results Compared with LPS group(29.88±5.98)％,24 h apoptosis rate was significantly decreased in budesonide group,c-Jun inhibitor group,budesonide+c-Jun inhibitor group and blank group[(20.15±6.66)％,(15.39±3.54)％,(12.11±2.55)％and(8.52±1.27)％,respectively],the differences were statistically significant(all P＜0.05).The ROS in budesonide group,c-Jun inhibitor group,budesonide+c-Jun inhibitor group,LPS group and blank group were(3.16±0.19),(4.15±0.33),(2.21±0.21),(6.52±0.36)and(1.06±0.23)U·g-1;8-OHdG were(10.55±1.23),(11.14±1.06),(9.55±1.00),(15.66±1.99)and(8.27±1.13)ng·mL-1;GSH-PX were(188.52±12.33),(200.52±27.97),(144.52±20.55),(335.14±30.10)and(126.55±12.52)U·mL-1;TRX-1 were(40.11±6.66),(50.55±10.07),(60.25±10.55),(115.36±20.03)and(16.55±2.33)ng·mL-1;the relative c-Jun mRNA expressions were 0.56±0.03,0.44±0.11,0.25±0.04,0.89±0.12 and 0.08±0.01;c-Jun/GAPDH protein relative expression were 3.15±0.22,2.36±0.14,1.55±0.13,4.02±0.22 and 0.88±0.12.Compared with the LPS group,the differences of indicators in the budesonide group,c-Jun inhibitor group and budesonide+c-Jun inhibitor group possessed statistical significance(all P＜0.05).Conclusion Budesonide significantly increased the survival rate of NR8383 cells and significantly decreased the concentrations of oxidative damage representative factors ROS,GSH-Px,8-OHdG and TRX-1,its oxidative damage protection mechanism may be related to the regulation of c-Jun protein.

Objective This study aimed to understand the epidemic status and phylogenetic relationships of rotavirus group A(RVA)in the Pearl River Delta region of Guangdong Province,China. Methods This study included individuals aged 28 days-85 years.A total of 706 stool samples from patients with acute gastroenteritis collected between January 2019 and January 2020 were analyzed for 17 causative pathogens,including RVA,using a Gastrointestinal Pathogen Panel,followed by genotyping,virus isolation,and complete sequencing to assess the genetic diversity of RVA. Results The overall RVA infection rate was 14.59%(103/706),with an irregular epidemiological pattern.The proportion of co-infection with RVA and other pathogens was 39.81%(41/103).Acute gastroenteritis is highly prevalent in young children aged 0-1 year,and RVA is the key pathogen circulating in patients 6-10 months of age with diarrhea.G9P[8](58.25%,60/103)was found to be the predominant genotype in the RVA strains,and the 41 RVA-positive strains that were successfully sequenced belonged to three different RVA genotypes in the phylogenetic analysis.Recombination analysis showed that gene reassortment events,selection pressure,codon usage bias,gene polymorphism,and post-translational modifications(PTMs)occurred in the G9P[8]and G3P[8]strains. Conclusion This study provides molecular evidence of RVA prevalence in the Pearl River Delta region of China,further enriching the existing information on its genetics and evolutionary characteristics and suggesting the emergence of genetic diversity.Strengthening the surveillance of genotypic changes and gene reassortment in RVA strains is essential for further research and a better understanding of strain variations for further vaccine development.

Objective To investigate the attributable risk(AR)of Acinetobacter baumannii(AB)infection in criti-cally ill patients.Methods A multicenter retrospective cohort study was conducted among adult patients in inten-sive care unit(ICU).Patients with AB isolated from sterile body fluid and confirmed with AB infection in each cen-ter were selected as the infected group.According to the matching criteria that patients should be from the same pe-riod,in the same ICU,as well as with similar APACHE Ⅱ score(±5 points)and primary diagnosis,patients who did not infect with AB were selected as the non-infected group in a 1:2 ratio.The AR was calculated.Results The in-hospital mortality of patients with AB infection in sterile body fluid was 33.3％,and that of non-infected group was 23.1％,with no statistically significant difference between the two groups(P=0.069).The AR was 10.2％(95％CI:-2.3％-22.8％).There is no statistically significant difference in mortality between non-infected pa-tients and infected patients from whose blood,cerebrospinal fluid and other specimen sources AB were isolated(P＞0.05).After infected with AB,critically ill patients with the major diagnosis of pulmonary infection had the high-est AR.There was no statistically significant difference in mortality between patients in the infected and non-infec-ted groups(P＞0.05),or between other diagnostic classifications.Conclusion The prognosis of AB infection in critically ill patients is highly overestimated,but active healthcare-associated infection control for AB in the ICU should still be carried out.

Background Workers in printing jobs are exposed to a variety of organic solvents at low levels for a long period of time. Previous studies have focused on the main components in Material Safety Data Sheet or high-risk occupational hazardous agents, but have not been able to comprehensively and accurately identify the volatile organic compounds (VOCs) in printing jobs. Objective To qualitatively analyze the VOCs in ink, detergent, varnish, fountain solution, and other raw and auxiliary materials by headspace gas chromatography-mass spectrometry, and to accurately identify the occupational hazardous agents in printing jobs. Methods Raw and auxiliary materials used in printing jobs in 6 printing enterprises in Shanghai were sampled by headspace sampling, analyzed by gas chromatography-mass spectrometry, identified by National Institute of Standards & Technology ( NIST) Standard Library and retention time, and quantified by peak area percentage. Results A total of 181 VOCs were reported in the headspace of 25 organic solvent samples, with a total detection frequency of 337 items and 13.2±12.3 VOCs per sample. The most frequently detected VOCs category was naphthene, with a total of 69 items detected (22.5%), dominated by cyclohexane. The characteristics of VOCs components in the headspace of different types of samples were different. The largest number of VOCs was detected in the headspace of detergent samples, with an average of 31.5 VOCs detected. The characteristic components in detergent were aromatic hydrocarbons and ester compounds; alcohols were the characteristic components in varnish; and ester compounds were the characteristic components in ink. The results of cluster analysis showed that ethanol, toluene, ethyl acetate, cyclohexane, and acetone were occupational hazardous agents with high levels of exposure in printing jobs. Conclusion Many kinds of organic solvents used in printing process are difficult to identify by traditional methods. Headspace gas chromatography-mass spectrometry can help to accurately identify VOCs in the workplace, so as to more accurately assess the occupational hazards, and to provide a technical basis for guiding occupational health monitoring and implementing corresponding occupational health risk management and control.

Objective To analyze the configuration of testing equipment in blood testing laboratories of blood stations in Shandong Province to facilitate to optimize equipment configuration for blood testing laboratories.Methods Questionnaires were distributed to obtain information on the number,the proportions of domestic and imported equipment,the usage time and the number of annual sample detection for the testing equipment of 17 blood testing laboratories(one laboratory from blood center and 16 laboratories from central blood stations)in Shandong Province,including the equipment for blood group testing,alanine aminotransferase(ALT)testing,sample adding of enzyme-linked immunosorbent assay(ELISA),ELISA micro-plate processing and nucleic amplification test(NAT).The testing equipment in the laboratories with different sizes were analyzed in terms of substitutability,localization,number of annual sample detection and average usage time.Results The blood group and ALT testing equipment had low substitutability;the imported equipment for ALT testing and ELISA sample adding had high proportions;the numbers of yearly sample detection of the equipment for ELISA sample adding,ELISA microplate processing and NAT rose significantly with the increase of laboratory sizes(P＜0.05);the equipment for ELISA sample adding and microplate processing had long usage time,and the differences between the usage time of the equipment for ELISA sample adding from the laboratories with different sizes were statistically significant(P＜0.05).Conclusion The equipment configuration of blood testing laboratories of blood stations in Shandong Province varies greatly,and each laboratory has to take measures based on their own actual situations,such as increasing the number of equipment,purchasing domestic equipment or accelerating equipment updating.[Chinese Medical Equipment Journal,2024,45(3):81-85]

Objective:To systematically review the current status of research on risk prediction models for feeding intolerance (FI) in patients receiving enteral nutrition (EN), and to provide a reference for medical workers to select, apply, and calibrate models, or to construct related prediction models. Methods:A literature search was conducted in the China National Knowledge Infrastructure (CNKI), VIP, WanFang, Chinese Biomedical Literature Database (CBM), Cochrane Library, PubMed, Embase, Web of Science, and CINAHL databases published on risk prediction models for FI in patients receiving EN. The search time was limited from the database establishment to February 28, 2023. Two researchers independently reviewed the literature, extracted relevant information, and evaluated the bias and applicability of the included studies. Results:A total of 10 studies were included, involving 14 models. The area under the receiver operating characteristic curve (AUC) of the included models ranged from 0.70 to 0.889. The top three predictors in the included models were age, mechanical ventilation, and albumin level, with albumin level being a protective factor. Conclusion:The occurrence of FI in patients receiving EN is related to advanced age, mechanical ventilation, and low albumin level. The existing risk prediction models have a high risk of bias. In the future, appropriate machine learning algorithms should be selected, and large-sample, multicenter studies should be conducted to construct FI risk prediction models with universal applicability. Targeted preventive measures should be implemented to reduce the risk of FI.

Objective:To systematically integrate qualitative researches on the financial toxicity experience of cancer patients, so as to provide reference for formulating intervention strategies for financial toxicity in cancer patients.Methods:Qualitative studies on financial toxicity experience of cancer patients were searched in Web of Science, PubMed, Embase, Cochrane Library, China National Knowledge Infrastructure, VIP, Wanfang data, and China Biology Medicine disc, with a search period from database establishment to August 31, 2023. The quality of the included literature was evaluated using the quality evaluation criteria for qualitative research of the Joanna Briggs Institute Evidence Based Health Care Center in Australia. The aggregation integration method was used to integrate the results.Results:A total of 12 articles were included, and 68 research results were extracted and categorized into 15 new categories. Four integrated results were obtained, including anxiety and stress under financial difficulties, relying on family members to start a new in adversity, and dancing together with treatment and life to write a new article, and great expectations for the future.Conclusions:Pay attention to the financial toxicity of cancer patients, actively seek response strategies, and bring benefits to cancer patients.