1.Research on The Genealogical Inference Efficiency of High-density SNPs
Jing LI ; Yi-Jie SUN ; Wen-Ting ZHAO ; Zi-Chen TANG ; Jing LIU ; Cai-Xia LI
Progress in Biochemistry and Biophysics 2026;53(3):740-753
ObjectiveThis study aims to explore the potential of different orders of magnitude single-nucleotide polymorphism (SNP) locus combinations for predicting distant kinship relationships. A high-density SNP locus set was constructed, and a comprehensive assessment of its inference capability was conducted. MethodsFirstly, we selected three commercial chip panels, CGA (Chinese genotyping array, Illumina), GSA (Global screening array, Illumina), Affy (23MF_V2 high-density SNP array, Affymetrix) and merged them after quality control, forming a high-density SNP locus panel(1 180 k). Secondly, we selected 161 samples and collected their peripheral blood samples by using whole-genome sequencing technology. Within this sample population, the levels of kinship relationships fully covered the range from level 1 to level 9, and the number of kinship pairs at each level was consistently maintained at over 50 pairs. From 161 samples data of whole-genome sequencing, the 1 180 k locus set was extracted, which is referred to as the high-density SNP locus set in the following text. The kinship inference was conducted using the identity-by-descent (IBD) algorithm with the selected optimal parameters. To comprehensively evaluate the performance of the high-density SNP locus set in kinship inference, we compared it with the three commercial chip panels, the intersection of these three chip loci, and the control sets constructed by randomly reducing the number of the high-density SNP locus set. Based on the changes in the IBD lengths, as well as the dynamic trends in prediction accuracy, we conducted a scientific assessment of the kinship inference capability of the high-density SNP locus set. ResultsAfter screening, a set of 1 184 334 autosomal SNPs was obtained. During the process of screening the optimal IBD length threshold, the result revealed that 0 cM, 1 cM, and 2 cM all demonstrated good applicability. However, to avoid the issue of a large amount of redundant information caused by setting a too low IBD length threshold, this study ultimately selected 2 cM as the optimal threshold. Compared with the average results of three chip panels, the high-density SNP locus set increased the total IBD length and the average IBD length across levels 1-9; the accuracy of the confidence interval for level 8 was 70.97%, which represented a 3.50% improvement; the average confidence interval accuracy for levels 1-8 was 91.39%, representing a 1.00% increase; and the false negative rates at levels 8 and 9 were reduced by 2.42% and 6.76%, respectively. The system efficacy of the high-density SNP locus set for kinship inference of first to eighth degree relationships reached 98.91%. Through random reduction of the high-density SNP locus set results, it is found that increasing the number of SNPs with the panel, the detection efficiency of IBD length showed a significant upward trend. At the same time, the overall trend in the accuracy of kinship relationship prediction as well as the confidence interval accuracy also indicated that both metrics steadily increased with the addition of more loci. ConclusionThe results show that the high-density SNPs panel significantly enhances the efficacy of distant kinship inference, accurately covering kinship degrees, with the average confidence interval accuracy for first to eighth degree relationships stably above 90%. The study finds that increasing the number of SNPs panel can improve the ability to predict distant kinship.
2.Retrospective analysis of a tuberculosis outbreak among junior high school students in Chongqing
LI Jianqiong, ZHANG Ting, CHEN Aihua, WANG Qingya, ZHANG Ya, CHEN Jian, TANG Jie, LI Liang
Chinese Journal of School Health 2026;47(5):741-746
Objective:
To analyze changes in tuberculosis infection among junior high school students before and after tuberculosis exposure, so as to provide a reference for improving school tuberculosis prevention and control measures and policy formulation.
Methods:
Retrospectively collect data on a tuberculosis outbreak that occurred in a grade of a junior high school in Chongqing in 2025, including tuberculosis screening records of students in this grade upon their enrollment in 2022 (1 156 students) and after two tuberculosis outbreaks in 2023 (206 students) and 2025 (171 students). The Wilcoxon signed rank test for paired design was used to compare the induration diameters of the subjects, and the Chi square test was adopted to analyze the rate of tuberculosis infection among students.
Results:
In the tuberculosis outbreak in 2023, the rate of tuberculosis infection among close contacts ( 11.84 %) and the rate of tuberculosis infection among freshrman at school enrollment (12.89%) showed no statistically significant difference ( χ 2=0.25, P >0.05). The rate of tuberculosis infection of close contacts in the 2025 tuberculosis outbreak (55.56%) was higher than that in the 2023 outbreak (11.84%) ( χ 2=30.42, P <0.01). Among the 106 students included in the cohort analysis, the median induration diameter was 3.50 (1.50, 7.50) mm in 2023 and 8.75 (4.25, 11.50) mm in 2025, with a statistically significant difference ( Z=-5.76, P <0.01). There was no statistically significant difference between the infection rate in 2022 (16.98%) and that in 2023 (10.38%) ( χ 2=1.96, P =0.16). The infection rate in 2025 (43.40%) was higher than those in 2022 and 2023 ( χ 2=17.55, 29.39, both P <0.017). The seroconversion rate of students in the same class in 2025 ( 58.00 %) was higher than that of students in different classes (16.07%), with a statistically significant difference ( χ 2=20.19, P <0.01). All 72 individuals with latent tuberculosis infections identified during the pandemic in 2023 and 2025 refused to undergo prophylactic treatment.
Conclusions
The lack of preventive treatment may be the underlying cause of the successive outbreaks during the epidemic. Early detection of infection sources and standardized outbreak management are crucial to controlling the spread of the epidemic.
3.Reactive and Enzyme-activated Probe Strategies for Imaging Acute Kidney Injury
Ru-Long CHEN ; Ting-Fei XIE ; Jin-Xin ZHANG ; Jia-Ting CHEN ; Jie LI ; Peng-Fei ZHANG ; Ji-Hong CHEN ; Lin-Tao CAI
Progress in Biochemistry and Biophysics 2026;53(6):1622-1637
Acute kidney injury (AKI) is a prevalent and life-threatening clinical syndrome characterised by a rapid decline in renal function and diverse pathological etiologies. The condition has been demonstrated to be associated with elevated mortality rates and an increased risk of progression to chronic kidney disease. At present, clinicians depend heavily on conventional functional markers, such as serum creatinine and urine output, for the diagnosis and staging of the disease. It is evident that these conventional indicators characteristically manifest a considerable temporal delay and only undergo modification subsequent to considerable tissue damage. This severely restricts the timeframe for early detection and timely therapeutic intervention. Furthermore, standard markers fail to provide specific biological information regarding the underlying cellular injury mechanisms. The utilisation of advanced probe technologies in molecular imaging offers a robust alternative to overcome these inherent diagnostic limitations.This comprehensive review systematically evaluates recent progress in the design and application of two primary categories of molecular imaging tools for acute kidney disease, specifically reactive probes and enzyme-activated probes. Reactive probes are engineered to specifically interact with redox-active chemical species, including hydrogen peroxide, peroxynitrite, hypochlorous acid, and sulfur dioxide. Because oxidative stress constitutes a primary early event in acute renal tubular damage, these probes enable researchers and clinicians to visualize early cellular injury and radical accumulation well before global renal functional decline becomes evident. We discuss the application of these reactive probes across multiple imaging modalities including fluorescence imaging, magnetic resonance imaging (MRI), positron emission tomography (PET), and photoacoustic techniques. Photoacoustic imaging combines high spatial resolution with deep tissue penetration and has successfully demonstrated the ability to provide diagnostic alerts up to 12 h before any detectable rise in serum creatinine levels. Additionally, specific reactive probes have shown promising translational potential when tested by high-throughput screening in clinical human urine samples. Enzyme-activated probes target the specific catalytic activity of disease-relevant enzymes. These include well-documented renal tubular structural biomarkers such as NAG, GGT, and ALP, along with apoptosis-related caspases and specific nitroreductases. By responding only to enzymatic cleavage, these tools provide highly specific and pathology-directed imaging readouts. Recent structural design strategies in this field have advanced significantly beyond single-enzyme detection. Researchers are now focusing on sophisticated dual-target recognition to minimize background noise, multimodal integration to cross-validate imaging signals, and theranostic applications where probes simultaneously deliver diagnostic feedback and therapeutic agents to injured tissues. Nanotechnology serves as a fundamental enabler for realizing these advanced probe functions. By precisely optimizing nanoparticle parameters such as hydrodynamic size, surface charge, and targeting ligands, researchers can achieve amplified signal output, highly precise kidney delivery, and protection against premature degradation in the systemic circulation. For example, modifying surface charges can significantly enhance the active uptake of nanoprobes by damaged renal tubular epithelial cells.While preclinical probe development has progressed rapidly, moving these technologies into routine clinical practice remains a major challenge. We analyze the translational feasibility and current obstacles from biological, technological, and regulatory perspectives. Although biological targets such as KIM-1, FAP, and ALP have been validated in extensive patient cohorts, practical barriers severely limit their immediate clinical application. These obstacles involve complex changes in in vivo pharmacokinetics. During an acute injury episode, the extreme drop in the glomerular filtration rate alters probe clearance and can cause unwanted systemic accumulation or confusing background imaging signals. Other major hurdles include a lack of comprehensive long-term toxicity data and the absence of standardized manufacturing protocols to ensure batch-to-batch consistency. Future successful translation will require rigorous multi-center clinical studies to confirm the true diagnostic value of these probes over traditional markers. Researchers must also establish strict standardization of imaging procedures and comprehensive safety evaluations. Ultimately, this review provides a thorough reference framework for designing clinically translatable molecular probes and building a precision diagnostic imaging system for acute kidney injury.
4.Application of wide awake local anesthesia no tourniquet technique in locking of metacarpophalangeal joint with extension lag surgery
Guo-tao YANG ; Hua-jie MAO ; Zhi-jun CHEN ; Xu ZHANG ; Huan HU ; Qi-ting JIANG
Journal of Regional Anatomy and Operative Surgery 2025;34(9):836-839
Objective To explore the application value of wide awake local anesthesia no tourniquet(WALANT)technique in outpatient surgery for locking of metacarpophalangeal joint with extension lag.Methods The clinical data of 6 patients with locking of meta-carpophalangeal joint with extension lag in Danyang People's Hospital from January 2019 to October 2023 were retrospectively analyzed.The patients were received outpatient surgery under the WALLANT technique for release,and lidocaine mixed solution containing 1∶100 000 epinephrine was injected into the proximal midpoint of the volar projection of the metacarpophalangeal joint.The joint was exposed with a volar or dorsal finger web incision to determine the unrestricted structure,and the collateral ligament and paralateral collateral ligament with high tension were cut off.The intraoperative blood loss,postoperative incision healing and complications were recorded.Visual analogue scale(VAS)was used to evaluate the intraoperative pain,and the range of motion of metacarpophalangeal joint and total active movement(TAM)of finger joint were observed during postoperative follow-up.Results The incision of patients were healed successfully in the first phase after surgery,without wound necrosis.The anesthesia effects of patients were all satisfied and the operation was successfully completed.The VAS score was less than 3 points and there was only a small amount of bleeding during the operation.The recovery of joint flexion and extension movements could be observed during the operation,and the TAM score after the operation was 20 points.No significant change was found on the range of motion of metacarpophalangeal joint or TAM of finger joint between the injured finger and the corresponding healthy finger(P>0.05).Conclusion WALANT technique for locking of metacarpophalangeal joint with extension lag surgery has good anesthesia effect,less bleeding in the incision,and clear vision of the surgery.It can avoid vascular and nerve injuries,observe the recovery of joint activities during the operation and relieve pain of patients,which is conducive to outpatient surgery and saving medical and social resources at the same time.
5.Construction of a family integrated care program for patients undergoing esophageal cancer surgery based on supportive care theory
Ting CHEN ; Yujie TIAN ; Xin LI ; Jie ZHANG
Chinese Journal of Practical Nursing 2025;41(18):1392-1400
Objective:To construct a family integrated care program for patients undergoing esophageal cancer surgery based on supportive care theory, and provide a theoretical basis for caregiver involvement in caring for patients.Methods:Based on supportive care theory, a family integrated care program for esophageal cancer surgery patients was constructed by literature review, semi-structured interview and expert consultation from October 2023 to May 2024, and the importance of items were identified.Results:A total of 18 experts were included, including 3 males and 15 females, aged 33-61 (46.44 ± 6.63) years. The response rates for the 2 rounds of expert correspondence were 18/19 and 18/18, the expert authority coefficient was 0.94, and the Kendall coordination coefficients were 0.146-0.210 and 0.211-0.229 (all P<0.05). The final family integrated care program was formed, including 5 first-level items, 23 second-level items, and 66 third-level items. Conclusions:The family integrated care program for patients undergoing esophageal cancer surgery constructed based on supportive theory was scientific and essential, and can guide caregivers to involve in caring for patients undergoing esophageal cancer surgery.
6.Research advances in mitochondrial inflammation-mediated damage in central nervous system degenerative disorders
Shu-qin LI ; Sha-sha LIU ; Qian YAN ; Han-long WANG ; Yang SUN ; Yan-ting HUANG ; Hao-jie ZHANG ; Jin-ping LIANG ; Shi-feng CHU ; Yan-tao YANG ; Qi-di AI ; Nai-hong CHEN
Chinese Pharmacological Bulletin 2025;41(12):2218-2225
Central nervous system(CNS)degenerative disorders refer to a spectrum of pathological alterations triggered by struc-tural damage to cerebral neural tissues,clinically manifested as diverse neurological dysfunction syndromes,including multiple sclerosis(MS),neurodegenerative diseases(NDs),and ische-mic stroke.The hallmark pathological features of these disorders involve irreversible neuronal damage and decompensation of functional neural networks,ultimately leading to progressive neurological deficits.Notably,with the accelerating global popu-lation aging,the incidence of these diseases has surged signifi-cantly.According to WHO statistics,they now rank among the top three global causes of disability and mortality.Current re-search has confirmed that the pathogenesis of CNS degenerative disorders exhibits high heterogeneity,encompassing multifaceted pathophysiological processes such as genetic predisposition,oxi-dative stress,protein misfolding,and metabolic dysregulation.This intricate pathogenic network not only complicates clinical differential diagnosis but also poses substantial challenges to the development of precision therapeutic strategies.Importantly,re-cent studies have revealed that mitochondrial homeostasis disrup-tion-induced inflammatory cascades(termed mitochondrial in-flammation)play a pivotal regulatory role in neurodegenerative progression.Key molecular mechanisms include impaired mito-phagy,aberrant mitochondrial DNA(mtDNA)release and NL-RP3 inflammasome activation.This review systematically deci-phers the molecular regulatory network of mitochondrial inflam-mation,with a focus on its biological effects in critical pathologi-cal events such as blood-brain barrier disruption,microglial hy-peractivation and neuronal apoptosis.The overarching aim is to provide a theoretical foundation for developing innovative thera-peutic strategies targeting mitochondrial homeostasis restoration.
7.Effects of Focused Solution Model Nursing on quality of life and negative emotions of prostate cancer patients
Lei YU ; Ting-ling ZHANG ; Wen-fang CHEN ; Xiu-qin YE ; Jie LIU ; Qian MENG ; Ying-chun HUANG ; Song XU
National Journal of Andrology 2025;31(8):723-727
Objective:To analyze the effects of the Focused Solution Model Nursing intervention on quality of life,negative emotions of the patients with prostate cancer.Methods:A total of 82 prostate cancer patients who were diagnosed and treated at the General Hospital of Eastern Theater Command between September 2022 and September 2024 were included and randomly divided into study group and control group by the method of random number table,with 41 patients in each group.The patients in the study group were treated with Focused Solution Model Nursing intervention.And the routine care was used in the control group The quality of life and negative emotions were compared between the two groups by using the scales of World Health Organization Quality of Life-Brief(WHOQOL-BREF),HAMA and HAMD.Results:Compared to the control group,the patients in the study group exhibited signifi-cantly higher scores in the physiological,psychological,environmental,and social relationship domains of the WHOQOL-BREF scale(P<0.05).The scores of HAMA and HAMD in study group were lower than those of the control group(P<0.05).Additionally,all subscales of the Social Impact Scale including social exclusion,internalized shame,social isolation and economic discrimination were significantly lower than those of the study group(P<0.05).Conclusion:Focused Solution Model Nursing intervention can effec-tively improve the quality of life and negative emotions of the prostate cancer patients in the clinical treatment.
8.Practical research on nursing coordination training for rapid sequential intubation in children based on LSPPDM framework
Yu-xia YANG ; Jing HU ; Wei-ming CHEN ; Ye CHENG ; Wei-jie SHEN ; Yi ZHANG ; Ting-ting XUE ; Bei-bei WANG ; Yu-qing WANG ; Pan LIU ; Ying-ying ZHANG ; Guo-ping LU ; Ying GU
Fudan University Journal of Medical Sciences 2025;52(6):847-853
Objective To investigate the practical effects of pediatric rapid sequence intubation(RSI)nursing coordination training based on the LSPPDM(learn,see,practice,prove,do,maintain)framework in order to provide evidence for optimizing pediatric RSI nursing training programs.Methods Nurses from the intensive care unit(ICU)of Children's Hospital,Fudan University during Feb 2023 and Jan 2024 were divided into the experimental group(n=35)and the control group(n=35)by block randomization.The experimental group received LSPPDM framework-based training,while the control group underwent conventional training with theoretical lectures and procedural demonstrations.Outcomes included training satisfaction,theoretical knowledge and procedural skill assessment scores,team collaboration compliance and RSI procedure time were compared between the two groups.Results The experimental group demonstrated significantly higher training satisfaction(123.80±2.04 vs.117.26±9.82,P<0.05),superior post-training theoretical knowledge and procedural skills(P<0.05),enhanced team collaboration compliance(P<0.05),and shorter RSI completion time(P<0.05)compared with the control group.Conclusion Pediatric RSI nursing coordination training based on the LSPPDM framework can effectively increase training satisfaction,promote theoretical and procedural skills and reduce completion time in nurses.
9.Clinical effects of tibial periosteal distraction combined with antibiotic bone cement in treating diabetic foot ulcer
Yan CHEN ; Lei FENG ; Ting HUANG ; Yangyang ZHENG ; Jie MA ; Jian WU
Chinese Journal of Burns 2025;41(7):655-664
Objective:To explore the clinical effects of tibial periosteal distraction combined with antibiotic bone cement in treating diabetic foot ulcer.Methods:The study was a retrospective observational study. From March 2021 to March 2024, 52 patients with diabetic foot ulcers who met the inclusion criteria were admitted to Gansu Provincial People's Hospital, including 25 males and 27 females, aged 34-77 years. According to the treatment methods used by the patients, they were divided into control group (22 cases) treated with antibiotic bone cement alone and combined group (30 cases) treated with tibial periosteal distraction combined with antibiotic bone cement. Toe amputation rate, limb amputation rate, length of hospitalization, and ulcer healing time-consuming of patients were recorded. Before the first treatment and 3 weeks after the last treatment, the ankle skin temperature and ankle-brachial index of the affected foot were measured routinely, the pain of the affected foot was evaluated by using visual analog scale (VAS), and the peripheral nerve function of the affected foot was evaluated by 10 g nylon thread examination (denoted as 10 g nylon thread test value). Three weeks after the last treatment, the clinical efficacy of patients was evaluated and the overall rate of clinical efficacy was calculated.Results:There were no statistically significant differences in the comparison of toe amputation rate and limb amputation rate of patients in the 2 groups ( P>0.05). The length of hospitalization and ulcer healing time-consuming of patients in combined group were (23±5) and (41±6) d, respectively, which were significantly shorter than (27±5) and (46±6) d in control group (with t values of 3.08 and 3.18, respectively, both P values <0.05). The ankle skin temperature of the affected foot of patients in combined group was (34.1±1.5) ℃, and the ankle-brachial index was 0.72±0.08 three weeks after the last treatment, which were significantly higher than (32.1±1.6) ℃ and 0.58±0.09 before the first treatment within the group (with t values of 5.10 and 6.37, respectively, P<0.05) and (31.8±1.1) ℃ and 0.59±0.09 three weeks after the last treatment in control group (with t values of 6.88 and 5.49, respectively, P<0.05). The pain VAS score of the affected foot of patients in combined group 3 weeks after the last treatment was significantly lower than that before the first treatment within the group and 3 weeks after the last treatment in control group (with t values of 8.16 and 6.83, respectively, both P values <0.05), and the 10 g nylon thread test value was significantly higher than that before the first treatment within the group and 3 weeks after the last treatment in control group (with t values of 6.15 and 4.23, respectively, both P values <0.05). Three weeks after the last treatment, the overall rate of clinical efficacy of patients in combined group was 96.7% (29/30), which was significantly higher than 63.6% (14/22) in control group, χ2=7.51, P<0.05. Conclusions:Tibial periosteal distraction combined with antibiotic bone cement has good clinical effects in the treatment of diabetic foot ulcers. It can shorten the length of patients' hospitalization, promote the healing of the ulcers, reduce the pain in the affected foot, and improve the blood supply and peripheral nerve function in the affected foot.
10.Effect and mechanism of LINC01088 on proliferation,migration and in-vasion of breast cancer cells
Jie LIU ; Hui ZHAO ; Chen ZHAO ; Na-na DONG ; Ning LI ; Hai-ting MAO
Chinese Journal of Current Advances in General Surgery 2025;28(7):538-544
Objective:To investigate the expression of LINC01088 in breast cancer and its effects on cell prolifera-tion,migration,and invasion.Methods:GEPIA and bc-GenExMiner were used to analyze the correlation between LINC01088 expression levels and clinical characteristics as well as prognosis.The expression of LINC01088 in MCF10A and MDA-MB-231,BT-549,MCF7 were detected by Real-time PCR.The effect of LINC01088 on the biological func-tion of breast cancer cells was examined by overexpressing LINC01088 in breast cancer cells.Cell proliferation was as-sessed using the Incucyte assay,while cell migration and invasion were evaluated using Transwell assays.Western blot-ting was employed to detect the expression of proteins associated with cell proliferation and metastasis.Results:LINC01088 expression was significantly lower in breast cancer tissues compared to normal breast tissues(P<0.05).Data from the bc-GenExMiner database revealed higher LINC01088 expression in HER2 positive patients(P<0.0001),corre-lating with longer overall survival(P=0.0006)and disease-free survival(P=0.0002).The mRNA expression level of LINC01088 in normal breast epithelial cell line was higher than that in breast cancer cell lines(P<0.05).Overexpression of LINC01088 significantly reduced proliferation,migration,and invasion in three breast cancer cell lines(P<0.01).Addi-tionally,LINC01088 upregulated p21 and p27(P<0.01),while downregulating Snail,Slug,PI3K,and phosphorylated Akt(P<0.05).Conclusion:LINC01088 expression was significantly reduced in human breast cancer.In vitro,LINC01088 in-hibited the proliferation,migration,and invasion of breast cancer cells.This effect may be attributed to its role in sup-pressing the PI3K-AKT pathway and epithelial-mesenchymal transition.


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