Peanut, a major economic and oil crop known for the high protein and oil content, is extensively cultivated in China. Peanut plants have the ability to form nodules with rhizobia, where the nitrogenase converts atmospheric nitrogen into ammonia nitrogen that can be utilized by the plants. Analysis of nodule fixation is of positive significance for avoiding overapplication of chemical fertilizer and developing sustainable agriculture. In this study, AhNIGT1.2, a member of the NIGT family predominantly expressed in peanut nodules, was identified by bioinformatics analysis. Subsequent spatiotemporal expression analysis revealed that AhNIGT1.2 was highly expressed in nodules and showed significant responses to high nitrogen, low nitrogen, high phosphorus, low phosphorus, and rhizobia treatments. Histochemical staining indicated that the gene was primarily expressed in developing nodules and at the connection region between mature nodules and peanut roots. The fusion protein AhNIGT1.2-GFP was located in the nucleus of tobacco epidermal cells. The AhNIGT1.2-OE significantly increased the number of peanut nodules, while AhNIGT1.2-RNAi reduced the number of nodules, which suggested a positive regulatory role of AhNIGT1.2 in peanut nodulation. The AhNIGT1.2-OE in roots down-regulated the expression levels of NRT1.2, NRT2.4, NLP1, and NLP7, which indicated that AhNIGT1.2 influenced peanut nodulation by modulating nitrate transport and the expression of NLP genes. The transcriptome analysis of AhNIGT1.2-OE and control roots revealed that overexpressing AhNIGT1.2 significantly enriched the differentially expressed genes associated with nitrate response, nodulation factor pathway, enzymes for triterpene biosynthesis, and carotenoid biosynthesis. These findings suggest that AhNIGT1.2 play a key role in peanut nodulation by regulating nitrate transport and response and other related pathways. This study gives insights into the molecular mechanisms of nitrogen and phosphorus in regulating legume nodulation and nitrogen fixation, and sheds light on the development of legume crops that can efficiently fix nitrogen in high nitrogen environments.
Arachis/physiology* ; Nitrates/metabolism* ; Plant Proteins/physiology* ; Transcription Factors/metabolism* ; Plant Root Nodulation/physiology* ; Gene Expression Regulation, Plant ; Root Nodules, Plant/metabolism* ; Nitrogen Fixation

Objective To develop a military cross-cultural symptom scale(MCCSS)and evaluate its reliability and validity.Methods The dimensions and items of the scale were determined through literature analysis,questionnaire surveys,group discussions,expert consultations,and pre-experiments.Cluster sampling was employed to collect data from the participants to examine the psychometric properties of the scale.Results The MCCSS comprised 38 items across 9 factors:depression,anxiety,somatic symptoms,misanthropic tendency,sleep problems,compulsions,psychotic symptoms,stress trauma,and defensiveness.Item analysis revealed that the 37 items(except 1 forced-choice item)exhibited correlations from 0.538 to 0.875 with the total scale score(all P＜0.01),with critical ratios ranging from 5.190 to 28.149,indicating good discriminative power.The Cronbach's α coefficients for the total scale and subscales ranged from 0.825 to 0.972,and the Spearman-Brown split-half reliability coefficients ranged from 0.747 to 0.955.The results of confirmatory factor analysis showed that x2/df=3.419,standardized root mean square residual=0.033,root mean square error of approximation=0.073,normed fit index=0.868,incremental fit index=0.903,Tucker-Lewis index=0.887,comparative fit index=0.902,and the scale's first-order 9-factor model fit well.The loads of each item on the factor to which it belonged ranged from 0.597 to 0.954(all P＜0.01).The correlation coefficients between the scale and the scale for criterion-related validity ranged from 0.392 to 0.773(all P＜0.01),and the correlation coefficients between the scale and the scale for convergent validity ranged from 0.257 to 0.519(all P＜0.01).Conclusion The MCCSS in this study has good reliability and validity and can be used as a mental health testing and screening tool for military personnel.

Objective:To investigate the efficacy of cytoreductive radical prostatectomy (CRP) in patients with oligometastatic prostate cancer, and to assess its impact on progression-free survival (PFS), overall survival (OS), as well as the incidence and severity of complications.Methods:A prospective, monocentric non-randomized controlled trial including 80 cases of oligometastatic prostate cancer admitted to the Second Affiliated Hospital of Air Force Military Medical University from January 2020 to June 2024 was conducted. There were 40 patients each assigned to CRP group and no local treatment (NLT) group. The study used multivariate analysis to account for potential biases, analyzed the effects of CRP on PFS, OS as well as circulating tumor cell (CTC) and DNA methylation status. Meanwhile, the incidence and severity of complications were recorded. Measurement data were expressed as mean ± standard deviation ( ± s), and t-test was used for inter-group comparison. Count data and rank data were expressed as number of cases and percentage, and Chi-test was used for comparison between groups. Kaplan-Meier method was used to calculate PFS and OS, and Log-rank test was used to compare differences between groups. Multivariate analysis was performed using Cox proportional hazard regression model. A time-dependent Cox regression model was used to consider the effect of follow-up time on the results. Results:The PFS and OS in the CRP group were significantly better than those in the NLT group. The PFS rates in CRP group and NLT group at 12 months were 60% and 35% ( P=0.030). The OS rates at 12 months in the CRP group reached 80%, compared to 50% in the NLT group ( P=0.040). The level of CTC in the CRP group decreased from 50 cells/mL at first month to 5 cells/mL at 12th month, and the DNA methylation status decreased from 0.75 at first month to 0.30 at 12th month, which were significantly better than those in the NLT group ( P<0.05). The incidence of complications decreased gradually from first month to 12th month, with the CRP group from 30% to 10%, and the NLT group from 25% to 12% ( P=0.080). Although the severity of complications was slightly higher in the CRP group than in the NLT group at the early stage, the difference in severity gradually narrowed and eventually became similar between the two groups by the 12th month of follow-up. Conclusion:CRP significantly prolonged PFS and OS in patients with oligometastatic prostate cancer, reduced tumor burden, and despite a higher incidence of early complications, overall safety was good.

Objective To explore the feasibility of the multiplexed sensitivity encoding diffusion weighted imaging(MUSE-DWI)sequence in neck MRI,and to compare with traditional single-shot echo-planar imaging diffusion weighted imaging(SS-EPI-DWI)sequence.Methods Thirty healthy volunteers underwent MUSE-DWI and SS-EPI-DWI sequences scanning in neck.Two groups of images were independently scored by two radiologists for magnetic sensitivity artifact,chemical shift artifact,geometric distortion and overall image quality.The noise,signal-to-noise ratio(SNR)and contrast-to-noise ratio(CNR)of the regions of interest(ROI)of the two groups of images were measured and compared on the nasopharyngeal fossa layer,parotid gland layer,glottic layer and thyroid layer.Results Qualitative analysis showed that the image quality scores of MUSE-DWI sequence were significantly better than those of SS-EPI-DWI sequence in terms of magnetic sensitivity artifact,chemical shift artifact,geometric distortion and overall image quality(P<0.001).Quantitative analysis showed that the noise values of ROIs of MUSE-DWI sequence were significantly lower than those of SS-EPI-DWI sequence(P<0.001).The SNR and CNR of ROIs of MUSE-DWI sequence were higher than those of SS-EPI-DWI sequence(P<0.001).Conclusion MUSE-DWI sequence can significantly reduce geometric distortion,magnetic sensitivity artifact and chemical shift artifact,and SNR and CNR of images are significantly increased compared with SS-EPI-DWI sequence,which is more suitable for neck MRI scanning.

Background: SM-like (LSM) genes a family of RNA-binding proteins, are involved in mRNA regulation and can function as oncogenes by altering mRNA stability. However, their roles in B-cell progression and tumorigenesis remain poorly understood. Methods: We analyzed gene expression profiles and overall survival data of 123 patients with mantle cell lymphoma (MCL). The LSM index was developed to assess its potential as a prognostic marker of MCL survival. Results: Five of the eight LSM genes were identified as potential prognostic markers for survival in MCL, with particular emphasis on the LSM.index. The expression levels of these LSM genes demonstrated their potential utility as classifiers of MCL. The LSM.index-high group exhibited both poorer survival rates and lower RNA levels than did the overall transcript profile. Notably, LSM1 and LSM8 were overexpressed in the LSM.index-high group, with LSM1 showing 2.5-fold increase (p < 0.001) and LSM8 depicting 1.8-fold increase (p < 0.01) than those in the LSM.index-low group.Furthermore, elevated LSM gene expression was associated with increased cell division and RNA splicing pathway activity. Conclusions The LSM.index demonstrates potential as a prognostic marker for survival in patients with MCL. Elevated expression of LSM genes, particularly LSM1 and LSM8, may be linked to poor survival outcomes through their involvement in cell division and RNA splicing pathways. These findings suggest that LSM genes may contribute to the aggressive behavior of MCL and represent potential targets for therapeutic interventions.

Background: SM-like (LSM) genes a family of RNA-binding proteins, are involved in mRNA regulation and can function as oncogenes by altering mRNA stability. However, their roles in B-cell progression and tumorigenesis remain poorly understood. Methods: We analyzed gene expression profiles and overall survival data of 123 patients with mantle cell lymphoma (MCL). The LSM index was developed to assess its potential as a prognostic marker of MCL survival. Results: Five of the eight LSM genes were identified as potential prognostic markers for survival in MCL, with particular emphasis on the LSM.index. The expression levels of these LSM genes demonstrated their potential utility as classifiers of MCL. The LSM.index-high group exhibited both poorer survival rates and lower RNA levels than did the overall transcript profile. Notably, LSM1 and LSM8 were overexpressed in the LSM.index-high group, with LSM1 showing 2.5-fold increase (p < 0.001) and LSM8 depicting 1.8-fold increase (p < 0.01) than those in the LSM.index-low group.Furthermore, elevated LSM gene expression was associated with increased cell division and RNA splicing pathway activity. Conclusions The LSM.index demonstrates potential as a prognostic marker for survival in patients with MCL. Elevated expression of LSM genes, particularly LSM1 and LSM8, may be linked to poor survival outcomes through their involvement in cell division and RNA splicing pathways. These findings suggest that LSM genes may contribute to the aggressive behavior of MCL and represent potential targets for therapeutic interventions.

By analyzing the of genetic testing data of patients with renal polycystic kidney disease and their relatives, this study aims to identify unreported novel gene mutation sites associated with autosomal dominant polycystic kidney disease (ADPKD). Structural prediction software was employed to investigate protein structural changes before and after mutations, explore genotype-phenotype correlations, and enrich the ADPKD gene database. In this single-center retrospective study, patients with multiple renal cysts diagnosed from January 2019 to February 2023 at the Zhong Da Hospital Southeast University were included. Genetic and clinical data of patients and their families were collected. Unreported novel gene mutation sites associated with ADPKD were identified. The AlphaFold v2.3.1 software was used to predict protein structures. Changes in protein structure before and after mutations were compared to explore genotype-phenotype correlations and enrich the ADPKD gene database. Twelve mutated genes associated with renal cysts were detected in 52 families. Nineteen novel gene mutation sites associated with ADPKD were identified, including 17 mutations in the PKD1 gene (one splicing mutation, seven frameshift mutations, four nonsense mutations, one whole-codon insertion, and four missense mutations); one ALG9 missense mutation; and one chromosomal structural variation. Truncating mutations in the PKD1 gene were correlated with a more severe clinical phenotype, while non-truncating mutations were associated with greater clinical heterogeneity. Numerous novel gene mutation sites associated with ADPKD remain unreported. Therefore, it is essential to analyze the pathogenicity of these novel mutation sites, establish genotype-phenotype correlations, and enrich the ADPKD gene database.

Objective:To analyze the mutation pathogenicity of the novel compound heterozygous mutation in the PKHD1 gene causing autosomal recessive polycystic kidney disease (ARPKD) family, expand the PKHD1 gene mutation database, and explore the genotype-phenotype correlations of PKHD1 gene mutation causing ARPKD. Methods:Clinical data and peripheral blood of a patient with ARPKD caused by the novel compound heterozygous mutation in the PKHD1 gene and their family members were collected. High-throughput sequencing was used to detect pathogenic mutations in the proband, and PCR amplification and Sanger sequencing were used to verify the pathogenic mutations in the family. AlphaFold software was applied to predict changes in protein structure in the present or absent mutations, and the pathogenicity of mutations was analyzed. Results:The patient was a young male who underwent splenectomy due to liver cirrhosis and hypersplenism at age 7. He developed end-stage renal disease at age 22, requiring maintenance peritoneal dialysis, and died of severe pneumonia and septic shock at age 24. Genetic testing revealed three compound heterozygous mutations in the PKHD1 gene inherited from his parents: a missense mutation (c.5935G>A) inherited from the father and a missense mutation (c.1187G>A) and a novel splice mutation (c.6332+1_6332+2insG) from the mother. The single missense mutation allele likely contributed to the prolonged survival. c. 6332+1_ 6332+2insG is a novel splicing mutation that has not been reported in the past, which can lead to early termination of protein translation. This discovery expands the PKHD1 gene mutation database. c. 1187G>A (p.S396N) and c.5935G>A (p.G1979R) occur in the PA14 and G8 domains of the protein, respectively, and are associated with early and severe liver phenotypes in patients. Conclusions:The mutation types and amino acid localization of the PKHD1 gene are associated with the heterogeneity of clinical phenotypes in ARPKD patients. Analyzing structural changes in proteins before and after mutations can help understand the pathogenicity at a molecular level, establishing genotype-phenotype correlations and providing valuable insights for assessing prognosis and identifying high-risk ARPKD patients early.

Objective To analyze the implementation effect of quality control on the homepage of inpatient medical re-cords based on the background of Disease Diagnosis Related Groups(DRG).Methods A retrospective study was conducted,including a total of 20,000 medical records from Dongguan People's Hospital from 2018 to 2022.Among them,10,000 medical records from January to December 2018,before the implementation of DRG-based quality control,were included as the control group;10,000 medical records from January to December 2022,after the implementation of DRG-based quality control,were in-cluded as the observation group.The implementation effect of quality control of hospital admission medical records among different groups based on DRG was explored.Results In the control group,there were 1,943 medical records with defects,accounting for 19.43％,which affected DRG grouping in 1,000 cases(51.47％)and did not affect DRG grouping in 943 cases(48.53％).In the observation group,there were 1,316 medical records with defects,accounting for 13.16％,among which 643 cases(48.86％)affected DRG grouping and 673 cases(51.14％)did not affect DRG grouping.The difference in the number of defective medical records between the groups was statistically significant(χ2=144.11,P<0.05).The missing rates of diagnos-tic and treatment information and cost information in the observation group were lower than those in the control group(P<0.05).The completeness and accuracy rates of diagnosis and surgical information in the observation group were higher than those in the control group(P<0.05).Conclusion The implementation of quality control of hospital admission medical records based on DRG can significantly improve the quality of medical records,increase the accuracy of diagnosis and surgical information in medi-cal records,and have higher comprehensive quality control value.It is recommended for clinical promotion and use.

177Lu-prostate specific membrane antigen(PSMA)radio-ligand therapy has been approved abroad for advanced prostate cancer and has been in several clinical trials in China.Based on domestic clinical practice and experimental data and referred to international experience and viewpoints,the expert group forms a consensus on the clinical application of 177Lu-PSMA radio-ligand therapy in prostate cancer to guide clinical practice.