Objective To establish an analytical strategy covering multi-dataset processing, recursive feature elimination (RFE) screening and multi-model evaluation based on multiple machine learning algorithms, so as to screen radiation-sensitive genes and verify the feasibility of the evaluation strategy. Methods Qualified radiation transcriptome datasets were retrieved from public gene expression databases. Following standardized data preprocessing and feature preselection, 13 machine learning algorithms were adopted to construct models. The performance of each model was compared and validated in independent datasets. Results A total of 38 eligible datasets were included. Sixteen differentially expressed genes unreported in existing literature were screened out, among which ugcrhl, pdcl3, mct4, h2-g2 and fam120aos were correlated with radiation phenotypes. Ensemble learning algorithms including random forest and gradient boosting exhibited the optimal comprehensive performance. Independent dataset verification confirmed that the screened genes overlapped with known radiation-sensitive genes, and the model performance was consistent with the findings. Conclusion The machine learning strategy constructed in this study can effectively explore potential radiation-sensitive genes, and provides methodological support for subsequent relevant studies.

Objective To establish an analytical strategy covering multi-dataset processing, recursive feature elimination (RFE) screening and multi-model evaluation based on multiple machine learning algorithms, so as to screen radiation-sensitive genes and verify the feasibility of the evaluation strategy. Methods Qualified radiation transcriptome datasets were retrieved from public gene expression databases. Following standardized data preprocessing and feature preselection, 13 machine learning algorithms were adopted to construct models. The performance of each model was compared and validated in independent datasets. Results A total of 38 eligible datasets were included. Sixteen differentially expressed genes unreported in existing literature were screened out, among which ugcrhl, pdcl3, mct4, h2-g2 and fam120aos were correlated with radiation phenotypes. Ensemble learning algorithms including random forest and gradient boosting exhibited the optimal comprehensive performance. Independent dataset verification confirmed that the screened genes overlapped with known radiation-sensitive genes, and the model performance was consistent with the findings. Conclusion The machine learning strategy constructed in this study can effectively explore potential radiation-sensitive genes, and provides methodological support for subsequent relevant studies.

Objective To establish an analytical strategy covering multi-dataset processing, recursive feature elimination (RFE) screening and multi-model evaluation based on multiple machine learning algorithms, so as to screen radiation-sensitive genes and verify the feasibility of the evaluation strategy. Methods Qualified radiation transcriptome datasets were retrieved from public gene expression databases. Following standardized data preprocessing and feature preselection, 13 machine learning algorithms were adopted to construct models. The performance of each model was compared and validated in independent datasets. Results A total of 38 eligible datasets were included. Sixteen differentially expressed genes unreported in existing literature were screened out, among which ugcrhl, pdcl3, mct4, h2-g2 and fam120aos were correlated with radiation phenotypes. Ensemble learning algorithms including random forest and gradient boosting exhibited the optimal comprehensive performance. Independent dataset verification confirmed that the screened genes overlapped with known radiation-sensitive genes, and the model performance was consistent with the findings. Conclusion The machine learning strategy constructed in this study can effectively explore potential radiation-sensitive genes, and provides methodological support for subsequent relevant studies.

Objective:To evaluate the long-term protective efficacy of the recombinant Chinese hamster ovary cell-derived hepatitis B vaccine（CHO-HepB）26 years post-vaccination in the rural China.Methods:Zhengding county，Hebei province was designated as a rural monitoring site for CHO-HepB efficacy. Study participants included individuals born between 1997 and 1999 who had completed the three-dose CHO-HepB primary series without booster doses. A cross-sectional survey was conducted in late 2024 using random sampling. Demographic and vaccination history data were collected via questionnaires，and hepatitis B virus（HBV）serological markers were detected using chemiluminescence. Historical surveillance data were integrated to infer infection statuses of HBsAg-positive individuals and evaluate longitudinal trends in anti-HBs seropositivity and antibody titers.Results:Among 178 participants（mean time since vaccination：26.2 years），the seroprevalence rates were 0.6% for HBsAg（95% CI：0.0%-1.6%），64.6% for anti-HBs（95% CI：57.6%-71.6%），and 1.1% for anti-HBc（95% CI：0.0%-2.7%）. Compared to the pre-vaccination baseline HBsAg positivity of 11.3% in children under 10 years of age，the estimated vaccine protection rate was 95%. Two notable cases were identified：one with concurrent HBsAg and anti-HBc positivity and one with anti-HBs and anti-HBc positivity，suggestive of transient HBV exposure（1999—2009）without chronicity. Natural immune boosting was inferred for the latter case based on anti-HBs titer dynamics. Longitudinal analysis of four prior cross-sectional surveys（2005，2009，2013，and 2017）revealed no significant upward trends in HBsAg and anti-HBc positivity（both P>0.05）over 26 years，while anti-HBs seropositivity declined significantly（ P<0.05）from 6 to 26 years post-vaccination. Conclusion:The CHO-HepB vaccine demonstrates sustained immunological persistence and robust long-term protection up to 26 years post-immunization. Continued emphasis on rigorous implementation of mother-to-child transmission prevention strategies is critical for future hepatitis B control.

Objective:To explore the differences in early clinical features between Kawasaki disease shock syndrome (KDSS) and septic shock (SS).Methods:A retrospective case-control study was conducted. Clinical data was collected from 64 children who were diagnosed with KDSS or SS and admitted to the Department of Critical Care Medicine of Capital Center for Children′s Health, Capital Medical University from January 2018 to February 2025. Mann-Whitney U test, χ2 test, or Fisher′s exact test were used to compare the differences in clinical features, treatment, and outcomes between children with KDSS and SS. Lasso regression was applied to screen predictive variables, and multivariable logistic regression analysis was performed to identify factors associated with KDSS. Receiver operating characteristic (ROC) curve was used to evaluate the predictive value of parameters for KDSS. Results:Among the 64 children (30 males and 34 females), the age was 3.6 (1.2, 6.5) years. There were 51 cases in the SS group and 13 cases in the KDSS group. Compared to children with SS, children with KDSS had a longer pre-shock fever duration, lower lactate levels and serum albumin levels, and higher soluble interleukin-2 receptor (sIL-2R) levels (all P<0.05). Additionally, they exhibited a higher incidence of coronary involvement, pericardial effusion, and ascites, a higher utilization rate of intravenous immunoglobulin, and a lower utilization rate of invasive mechanical ventilation (all P<0.05). There was no significant difference in in-hospital mortality between KDSS and SS ( P=0.574). Multivariate logistic regression analysis identified pre-shock fever duration and sIL-2R as independent factors associated with KDSS ( OR=1.52 and 1.54 per 1 000 U increase, 95% CI 1.12-2.05 and 1.06-2.24, respectively; both P<0.05). ROC curve analysis showed that the areas under the curve for pre-shock fever duration and sIL-2R in identifying KDSS were 0.83 (95% CI 0.73-0.94, P=0.001) and 0.70 (95% CI 0.53-0.87, P=0.042), respectively. The optimal cutoff values were 3.5 d and 3.8×10 6 U/L, with sensitivities of 0.91 and 0.82, and specificities of 0.71 and 0.62, respectively. Conclusions:Children with KDSS have higher incidences of coronary involvement, pericardial effusion, and ascites compared to those with SS. Pre-shock fever duration and sIL-2R may serve as potential early indicators for distinguishing KDSS from SS.

Aim To explore the effects of exercise during pregnancy on renal structure,function and angiotensin Ⅱ(Ang Ⅱ)/transforming growth factor-β1(TGF-β1)/connective tissue growth factor(CTGF)signaling pathway in 3-month-old offspring of spontaneously hypertensive rats(SHR),the aim of this study was to provide experimental basis for early intervention of hypertension and protection of key target organs.Methods After mating SHR and WKY rats,pregnant rats were randomly divided into sedentary group(p-WKY-SED,p-SHR-SED)and exercise group(p-WKY-EX,p-SHR-EX).Blood pressure,serum urea nitrogen and creatinine were measured by caudal artery non-invasive blood pressure system and colorimetry in 3-month-old offspring rats.HE staining,Masson staining,ELISA and Western blot were used to detect the renal structure,collagen volume fraction,Ang Ⅱ concentration,renin-angiotension-aldosterone sys-tem(RAAS)and protein expression related to fibrogenic signal pathway in 3-month-old rats.Results(1)The sys-tolic blood pressure(SBP),diastolic blood pressure(DBP)and mean arterial pressure(MAP)of offspring rats in p-SHR-SED group were significantly higher than those in p-WKY-SED group.The SBP,DBP and MAP of SHR male off-spring rats were significantly decreased by exercise during pregnancy(P＜0.05),but had no effect on the female offspring rats(P＞0.05).(2)There was no significant difference in serum urea nitrogen and creatinine among the groups(P＞0.05).(3)The glomerular volume and the collagen volume fraction in p-SHR-SED group were significantly higher than those in p-WKY-SED group(P＜0.05),and the glomerular volume and the collagen volume fraction in p-SHR-EX group were significantly lower than those in p-SHR-SED group(P＜0.05).(4)Renal Ang Ⅱ level of offspring rats in p-SHR-SED group was significantly higher than that in p-WKY-SED group,and renal Ang Ⅱ level of offspring rats in p-SHR-EX group was significantly lower than that in p-SHR-SED group(P＜0.05).(5)The expression levels of angiotensin Ⅱ type 1 receptor(AT1R),TGF-β1 and CTGF protein in p-SHR-SED group were significantly higher than those in p-WKY-SED group(P＜0.05),while the expression levels of angiotensin converting enzyme 2(ACE2),angiotensin Ⅱ type 2 receptor(AT2R)and MasR protein in p-SHR-SED group were significantly lower than those in p-WKY-SED group(P＜0.05).Conclusion(1)Exercise during pregnancy can significantly decrease the blood pressure of 3-month-old male offspring rats of hypertensive rats,but has no significant effect on that of 3-month-old female offspring.(2)Exercise during preg-nancy may reduce renal fibrosis in 3-month-old female/male offspring of hypertensive rats by regulating RAAS balance and inhibiting Ang Ⅱ/TGF-β1/CTGF signaling pathway.

Aim To explore the effects of exercise during pregnancy on renal structure,function and angiotensin Ⅱ(Ang Ⅱ)/transforming growth factor-β1(TGF-β1)/connective tissue growth factor(CTGF)signaling pathway in 3-month-old offspring of spontaneously hypertensive rats(SHR),the aim of this study was to provide experimental basis for early intervention of hypertension and protection of key target organs.Methods After mating SHR and WKY rats,pregnant rats were randomly divided into sedentary group(p-WKY-SED,p-SHR-SED)and exercise group(p-WKY-EX,p-SHR-EX).Blood pressure,serum urea nitrogen and creatinine were measured by caudal artery non-invasive blood pressure system and colorimetry in 3-month-old offspring rats.HE staining,Masson staining,ELISA and Western blot were used to detect the renal structure,collagen volume fraction,Ang Ⅱ concentration,renin-angiotension-aldosterone sys-tem(RAAS)and protein expression related to fibrogenic signal pathway in 3-month-old rats.Results(1)The sys-tolic blood pressure(SBP),diastolic blood pressure(DBP)and mean arterial pressure(MAP)of offspring rats in p-SHR-SED group were significantly higher than those in p-WKY-SED group.The SBP,DBP and MAP of SHR male off-spring rats were significantly decreased by exercise during pregnancy(P＜0.05),but had no effect on the female offspring rats(P＞0.05).(2)There was no significant difference in serum urea nitrogen and creatinine among the groups(P＞0.05).(3)The glomerular volume and the collagen volume fraction in p-SHR-SED group were significantly higher than those in p-WKY-SED group(P＜0.05),and the glomerular volume and the collagen volume fraction in p-SHR-EX group were significantly lower than those in p-SHR-SED group(P＜0.05).(4)Renal Ang Ⅱ level of offspring rats in p-SHR-SED group was significantly higher than that in p-WKY-SED group,and renal Ang Ⅱ level of offspring rats in p-SHR-EX group was significantly lower than that in p-SHR-SED group(P＜0.05).(5)The expression levels of angiotensin Ⅱ type 1 receptor(AT1R),TGF-β1 and CTGF protein in p-SHR-SED group were significantly higher than those in p-WKY-SED group(P＜0.05),while the expression levels of angiotensin converting enzyme 2(ACE2),angiotensin Ⅱ type 2 receptor(AT2R)and MasR protein in p-SHR-SED group were significantly lower than those in p-WKY-SED group(P＜0.05).Conclusion(1)Exercise during pregnancy can significantly decrease the blood pressure of 3-month-old male offspring rats of hypertensive rats,but has no significant effect on that of 3-month-old female offspring.(2)Exercise during preg-nancy may reduce renal fibrosis in 3-month-old female/male offspring of hypertensive rats by regulating RAAS balance and inhibiting Ang Ⅱ/TGF-β1/CTGF signaling pathway.

Hypertension is a systemic chronic vascular disease. From the perspective of Traditional Chinese Syndromes, hypertension belongs to the category of liver fire, vertigo, liver yang, headache and so on. Chinese medicine treatment of hypertension has gradually become a hot research topic, and using Chinese herbal medicine to reduce blood pressure has also achieved good results. In recent years, researches on anti-hypotension of Bidens pilosa L. has gradually increased. The related research of Bidens pilosa L., including the ancient literature, modern research, functional components and mechanism were mainly summarized, the application of Bidens pilosa L. in lowering blood pressure were anticipated, with a view to provide reference for the further development and utilization of Bidens pilosa L. in treatment of hypertension.