Schistosomiasis is prevalent in 78 countries and territories worldwide, while the eastern and western parts of sub-Sahara Africa bear the highest disease burden due to schistosomiasis. Recently, climate change, international trade and travel, urbanization and war have increased the risk of cross-boundary importation and transmission of schistosomiasis, and schistosomiasis has increasingly become a public health concern in non-endemic countries and territories. Biomphalaria straminea, the intermediate host of Schistosoma mansoni, has colonized in southern China and its habitats continue to move northward. In addition, cross-boundary imported cases of schistosomiasis have been reported occasionally in China. However, the real number of cases may be underestimated greatly due to insufficient diagnostic capacity and weak awareness of case reporting for overseas imported schistosomiasis in healthcare facilities. It is necessary to establish a multi-party collaborative mechanism, improve corresponding systems and technical specifications, reinforce surveillance and early warning, and border management, enhance technical reserves and capability building, and improve the awareness of schistosomiasis prevention and healthcare-seeking among entry-exit personnel, in order to effectively address the threat of cross-boundary imported schistosomiasis.

Objective:This study aims to evaluate the quality and explore the preliminary clinical applications of a domestically developed hepatitis D virus nucleic acid quantification reagent (abbreviated as"domestic HDV RNA reagent").Methods:The sensitivity and accuracy of the reagent were evaluated in accordance with the WHO HDV RNA international standard, employing the Bio-Rad CFX Opus 96 real-time fluorescence quantitative PCR analysis system. Serial dilutions of pseudo-viruses or cell culture-derived virus were used to determine the linear range of the domestic HDV RNA reagent. Specificity was assessed using positive samples of HAV, HBV, HCV infection, and HEV national reference materials. Precision was evaluated with samples at both high and low concentrations. In a comparative analysis, 30 HDV IgG positive samples were tested using both the domestic HDV RNA reagent and the RoboGene HDV RNA kit based on the ABI 7500 FAST DX system. The Pearson correlation coefficient (r) was used to examine the correlation between the two reagents.Results:The domestic HDV RNA reagent demonstrated a high sensitivity of up to 6 IU/ml, consistent with that of the comparator reagent. The calibration curve for WHO HDV RNA standards had a slope of -3.286, with an amplification efficiency of 101.6%. The linear detection range spanned from 10 to 10 8 IU/ml for eight HDV genotypes. The domestic HDV RNA reagent exhibited exceptional specificity, without cross-reactivity observed with HAV, HBV, HCV, or HEV. Accuracy assessments at five concentration levels met the required standards, with intra-assay precision coefficient of variation ( CV) ranging from 1.20% to 4.20%, and inter-assay precision CV from 1.20% to 7.90%. The detection results for HDV IgG positive samples were highly correlated with the comparator reagent ( r=0.984, P<0.001), achieving a diagnostic accuracy of 100% compared to sequencing results. Conclusion:In this study, the domestic HDV RNA reagent possesses excellent specificity, accuracy, precision, and a broad linear range, attaining a sensitivity level on par with international reagents of the same type.

Objective Explore differences in the cognitive abilities of socially different Labradors.Methods The dog mentality assessment(DMA)test created by the Swedish Working Dog Association was modified to employ 12 behavioral variables from five subtests of the DMA test,social contact,play Ⅰ,distance-play,ghosts and play Ⅱ,to assess sociability of the dogs.In accordance with the scoring criteria,49 labradors provided by the China Guide Dog Training Centre in Dalian were scored on the social behavioral variables and classified into high(n=15)and low(n=34)sociability groups by cluster analysis.A new system to test canine cognitive ability was developed using the dog cognitive development battery,which tests various domains of cognitive ability such as social cue use,unsolvable task,inhibitory control,cognitive flexibility,working memory,and multistep problem solving task.The dogs'behavioral performance and duration of the test were also recorded.Statistical analysis was performed to determine assess differences in the cognitive abilities of socially diverse dogs.Results Dogs in the high and low social subgroups differed significantly in behavioral variables of the unsolvable task,inhibitory control test,and multistep problem solving task.In the unsolvable task,dogs in the high social group looked at people for significantly longer than dogs in the low social grouping(P=0.008)and looked at people with significantly less latency time than dogs in the low social group(P=0.0001).In the inhibitory control,dogs in the high social group chose significantly more correctly than dogs in the low social group(P=0.034)and chose for significantly less time than dogs in the low social group(P=0.039).In the multistep problem solving task,for dogs in the high social group.successfully completed number of stakes was significantly higher than for dogs in the low social group(P=0.044).The percentage of operation pale time was significantly lower than for dogs in the low social group(P=0.05).The average latency time to solve the bone task was significantly higher than for dogs in the low social group(P=0.037).Moreover,the percentage of operation bone time was significantly lower than for dogs in the low social group(P=0.038).In tests involving a manipulable apparatus,dogs in the high social group spent more time looking at people than dogs in the low social group and less time manipulating the apparatus than dogs in the low subgroup,but no statistically significant differences were observed(P＞0.05).Conclusions Highly sociable labradors have a greater cognitive ability,they are more able to suppress impulses during tests,more able to complete the multistep problem solving task,and more inclined to change strategies to seek new cues from people rather than obsessing over manipulating the apparatus when they are unable to solve a problem.

Nuclear emergency medical rescue is one of the important courses of military medical professional education, and improving the training level of nuclear emergency medical rescue plays a very important role in improving post competency of trainees. Based on the problem of disconnection between "teaching" and "need" in the occupational education of nuclear emergency medical rescue in the past, this study proposes the curriculum goal of "the combination of three abilities" and performs the optimization and practice of the occupational education curriculum system of nuclear emergency medical rescue from the aspects of curriculum setting, curriculum content, teaching methods, and assessment and evaluation. The results show that the new curriculum system can significantly improve the comprehensive ability of nuclear emergency medical rescue among trainees and better meet the requirements for their posts, thereby playing an important role in cultivating high-quality military medical talents in nuclear emergency medical rescue.

A target screening methodology was developed for detection of 63 kinds of chemical hazards substances,including 17 kinds of flame retardants,14 kinds of perfluorinated compounds,15 kinds of phthalate esters,5 kinds of fluorescent whitening agents and 12 kinds of ultraviolet absorbers,in various types of face masks using ultra high performance liquid chromatography-quadrupole-orbitrap high-resolution mass spectrometry based on an in-house database and mass spectral library.And the quantification was achieved using the external standard method.The results showed that the linear correlation coefficient(r)of all compounds was greater than 0.99,the limits of detection(LODs)ranged from 3.3 to 26.7 μg/kg(S/N=3),the limits of quantification(LOQs)ranged from 10.0 to 80.0 μg/kg(S/N=10),the average recoveries(n=6)were 72.3%-102.6%,and the relative standard deviations(RSDs)were 0.8%-9.9%.The validation of the screening results from both the database and mass spectral library was conducted,and benzophenone and dibutyl phthalate were detected from three positive samples.The human health exposure assessment of the inhalation exposure doses based on the relevant exposure models showed that the contents of benzophenone and dibutyl phthalate were within the recommended reference doses.The method represented a valuable technical reference for ensuring the quality and safety of face mask products and protecting consumer health.

Professor ZHOU Peng has deeply discussed the pathological characteristics of psoriasis vulgaris,emphasizing that the disease is usually manifested deficiency interweaved with excess,leading to frequent recurrence and persistent refractory,which may lead to psychological and emotional problems of patients.This paper further expounds the effect of blood stasis on the pathogenesis,progression and prognosis of psoriasis,and puts forward a new method of combining Lingnan fire needling and filiform needling acupuncture technique to treat psoriasis vulgaris with blood stasis syndrome.Professor ZHOU Peng believes that the treatment principle of this disease is"regulating the mind first,rectifying blood as a base,syndrome differentiating and eliminating pathogenic factors",aiming at comprehensively considering the etiology and symptoms,in order to achieve more effective treatment results.Combined with the analysis of dermoscopic signs,it provides a possible improvement direction for the treatment of psoriasis vulgaris from a new perspective.

Sepsis-induced coagulopathy(SIC),a critical and potentially lethal condition arising from sepsis,results in endothelial damage and significant coagulation dysregulation,making it a major factor contributing to mortality among sepsis patients.Early diagnosis and treatment of SIC are expected to improve the prognosis of sepsis patients.In 2019,the International Society on Thrombosis and Hemostasis(ISTH)issued the first guidelines for the diagnosis and treatment of SIC,but there are no corresponding protocols in China.Therefore,Chinese Society of Thrombosis,Hemostasis and Critical Care,Chinese Medicine Education Association,and Chinese People's Liberation Army Professional Committee of Critical Care Medicine jointly formulated the"Chinese Expert Consensus on the Diagnosis and Treatment of Sepsis-induced Coagulopathy(2024 edition)."This consensus includes 5 parts:pathogenesis,classification,laboratory approaches,diagnosis and treatment,with a total of 14 evidence-based recommendations to guide clinical practice.

Objective:To explore the association between polymorphisms of transforming growth factor-β(TGF-β)signaling pathway and non-syndromic cleft lip with or without cleft palate(NSCL/P)among Asian populations,while considering gene-gene interaction and gene-environment interaction.Methods:A total of 1 038 Asian NSCL/P case-parent trios were ascertained from an international consortium,which conducted a genome-wide association study using a case-parent trio design to investigate the genes affec-ting risk to NSCL/P.After stringent quality control measures,343 single nucleotide polymorphism(SNP)spanning across 10 pivotal genes in the TGF-β signaling pathway were selected from the original genome-wide association study(GWAS)dataset for further analysis.The transmission disequilibrium test(TDT)was used to test for SNP effects.The conditional Logistic regression models were used to test for gene-gene interaction and gene-environment interaction.Environmental factors collected for the study in-cluded smoking during pregnancy,passive smoking during pregnancy,alcohol intake during pregnancy,and vitamin use during pregnancy.Due to the low rates of exposure to smoking during pregnancy and al-cohol consumption during pregnancy(＜3％),only the interaction between maternal smoking during pregnancy and multivitamin supplementation during pregnancy was analyzed.The threshold for statistical significance was rigorously set at P=1.46 × 10-4,applying Bonferroni correction to account for multiple testing.Results:A total of 23 SNPs in 4 genes yielded nominal association with NSCL/P(P＜0.05),but none of these associations was statistically significant after Bonferroni's multiple test correction.How-ever,there were 6 pairs of SNPs rs4939874(SMAD2)and rs1864615(TGFBR2),rs2796813(TGFB2)and rs2132298(TGFBR2),rs4147358(SMAD3)and rs1346907(TGFBR2),rs4939874(SMAD2)and rs1019855(TGFBR2),rs4939874(SMAD2)and rs12490466(TGFBR2),rs2009112(TGFB2)and rs4075748(TGFBR2)showed statistically significant SNP-SNP interaction(P＜1.46 × 10-4).In contrast,the analysis of gene-environment interactions did not yield any significant results after being cor-rected by multiple testing.Conclusion:The comprehensive evaluation of SNP associations and interac-tions within the TGF-β signaling pathway did not yield any direct associations with NSCL/P risk in Asian populations.However,the significant gene-gene interactions identified suggest that the genetic architec-ture influencing NSCL/P risk may involve interactions between genes within the TGF-β signaling path-way.These findings underscore the necessity for further investigations to unravel these results and further explore the underlying biological mechanisms.

Objective:To explore the clinical, biochemical and genetic characteristics of three children with Isoleucine metabolic disorders due to variants of HSD17B10 and ACAT1 genes. Methods:Two children with 17β hydroxysteroid dehydrogenase 10 (HSD17B10) deficiency and a child with β-ketothiolase deficiency (BKD) diagnosed at Shanghai Children′s Hospital between 2014 and 2021 were selected as the study subjects. Clinical data of the children were collected. The children were subjected to blood acylcarnitine, urinary organic acid and genetic testing, and candidate variants were analyzed with bioinformatic tools.Results:The main symptoms of the three children had included epilepsy, developmental delay, hypotonia and acidosis. Their blood acylcarnitine methylcrotonyl carnitine (C5: 1), 3-hydroxyisovalerylcarnitine (C5-OH) and 3-hydroxybutylcarnitine (C4OH) were increased to various extents, and urine organic acids including methyl crotonylglycine and 2-methyl-3-hydroxybutyric acid were significantly increased. Child 1 and child 2 were respectively found to harbor a c. 347G>A (p.R116Q) variant and a c. 274G>A (p.A92T) variant of the HSD17B10 gene, and child 3 was found to harbor compound heterozygous variants of the ACAT1 gene, namely c. 547G>A (p.G183R) and a c. 331G>C (p.A111P). Among these, the c. 274G>A (p.A92T) and c. 331G>C (p.A111P) variants were unreported previously. Based on the guidelines from the American College of Medical Genetics and Genomics (ACMG), they were respectively classified as variant of unknown significance (PP3_Strong+ PM2_supporting) and likely pathogenic (PM3+ PM2_Supporting+ PP3_Moderate+ PP4). Conclusion:Both the HSD17B10 deficiency and BKD can lead to Isoleucine metabolism disorders, which may be difficult to distinguish clinically. Genetic testing can further confirm the diagnosis. Discoveries of the HSD17B10: c. 274G>A (p.A92T) variant and the ACAT1: c. 331G>C (p.A111P) variant have enriched the mutational spectrum of the two diseases.

Objective:To analyze the pregnancy outcomes in patients with positive anti-centromere antibodies(ACA)receiving in vitro fertilization(IVF)-embryo transfer(ET)and natural conception.Methods:A case-control study was used to retrospectively analyze the clinical data of 3955 patients who received IVF-ET therapy and had the results of antinuclear antibody(ANA)spectrum at Zhejiang Provincial People's Hospital from June 2016 to June 2023.Patients with positive ACA and negative ACA were matched at a ratio of 1∶3 using propensity score matching.Embryo outcomes of IVF were compared between the two groups,and the impact of different fertilization methods and the use of immunosuppressants on pregnancy outcomes were analyzed using self-matching.The natural conception and disease progress were followed up for ACA-positive patients after IVF failure.Results:The ACA-positive patients accounted for 0.86%of all IVF patients(34/3955)and 2.51%of total ANA-positive IVF patients.Regardless of whether patients received conventional IVF(c-IVF)or intracytoplasmic sperm injection(ICSI),the ACA-positive group exhibited significant differences in oocyte maturity and fertilization compared to the ACA-negative group(both P＜0.01).Moreover,the ACA-positive group had a decreased number of D3 suboptimal embryos and D3 optimal embryos(both P＜0.05).In 5 cases of ACA-positive patients who underwent ICSI cycles,the two pronucleus(2PN)rate did not increase compared to c-IVF cycles(P＞0.05),and there was a decrease in the number of D3 high-quality embryos and D3 suboptimal embryos(both P＜0.05).After 1-2 months of immuno-suppressant treatment,12 ACA-positive patients underwent c-IVF/ICSI again,and there were no changes in egg retrieval and fertilization before and after medication(both P＞0.05),but there was an improvement in the 2PN embryo cleavage rate(P＜0.05).The number of embryos transferred was similar between the ACA-positive and negative groups,but the ACA-positive group had significantly lower embryo implantation rate and clinical pregnancy rate compared to the ACA-negative group(both P＜0.05),with no significant differences in the miscarriage rate between the two groups(P＞0.05).Twenty-seven ACA-positive patients attempted natural conception or artificial insemination after IVF failure,resulting in a total of 7 cases of clinical pregnancy.Conclusions:Serum ACA positivity may disrupt oocyte maturation and normal fertilization processes,with no improvement observed with ICSI and immunosuppressant use.However,ACA-positive patients may still achieve natural pregnancy.