Objective To investigate the factors affecting the distribution of Pomacea and project the trends in the spread of suitable distribution areas of Pomacea in 2050 and 2070 in Dali Bai Autonomous Prefecture, so as to provide insights into Pomacea control in the prefecture. Methods The longitudes and latitudes of Pomacea sampling sites were captured based on Pomacea field survey data in 12 cities (counties) of Dali Bai Autonomous Prefecture from 2023 to 2024. A total of 19 climatic factors (annual mean temperature, mean diurnal range, isothermality, temperature seasonality, maximum temperature of the warmest month, minimum temperature of the coldest month, temperature annual range, mean temperature of the wettest quarter, mean temperature of the driest quarter, mean temperature of the warmest month, mean temperature of the coldest month, annual precipitation, precipitation of the wettest month, precipitation of the driest month, precipitation seasonality, precipitation of the wettest quarter, precipitation of the driest quarter, mean temperature of the warmest quarter, and mean temperature of the coldest quarter) and representative concentration pathways (RCPs) were retrieved from the world climate database (www.worldclim.org). All climatic variables were employed to create a maximum entropy (MaxEnt) model. The predictive accuracy of the model was assessed with the area under the receiver operating characteristic (ROC) curve (AUC), and the contributions of these 19 climatic factors to the distribution of Pomacea were analyzed in Dali Bai Autonomous Prefecture using Jackknife test. In addition, the suitable distribution areas of Pomacea were predicted with the MaxEnt model in Dali Bai Autonomous Prefecture in 2024 and in 2050 and 2070 under RCP4.5. Results Data pertaining to 91 Pomacea sampling sites were captured. ROC analysis revealed the MaxEnt model had an AUC value of 0.885 ± 0.088 for predicting the suitable distribution areas of Pomacea in Dali Bai Autonomous Prefecture. Of the 19 climatic factors, the maximum temperature of the warmest month had the highest contribution to the distribution of Pomacea in Dali Bai Autonomous Prefecture, followed by mean temperature of the driest quarter, mean temperature of the wettest quarter and minimum temperature of the coldest month. The suitable distribution area of Pomacea was predicted to be 14 555.69 km² in Dali Bai Autonomous Prefecture in 2024, and would expand gradually to the southeastern part of the prefecture in the future due to climatic factors. The suitable distribution areas of Pomacea were projected to expand to 21 475.61 km² in 2050 and 25 782.52 km² in 2070 in Dali Bai Autonomous Prefecture, respectively. Conclusions Temperature is an important contributor to the distribution of Pomacea in Dali Bai Autonomous Prefecture, and the suitable distribution area of Pomacea will gradually expand to the southeastern part of the prefecture in 2050 and 2070.

Objective To investigate the changes in eosinophil counts and the activation of microglial cells in the brain tissues of mice at different stages of Angiostrongylus cantonensis infection, and to examine the role of microglia in regulating the progression of angiostrongyliasis and unravel the possible molecular mechanisms. Methods Fifty BALB/c mice were randomly divided into the control group and the 7-d, 14-d, 21-day and 25-d infection groups, of 10 mice in each group. All mice in infection groups were infected with 30 stage III A. cantonensis larvae by gavage, and animals in the control group was given an equal amount of physiological saline. Five mice were collected from each of infection groups on days 7, 14, 21 d and 25 d post-infection, and 5 mice were collected from the control group on the day of oral gavage. The general and focal functional impairment was scored using the Clark scoring method to assess the degree of mouse neurological impairment. Five mice from each of infection groups were sacrificed on days 7, 14, 21 d and 25 d post-infection, and 5 mice from the control group were sacrificed on the day of oral gavage. Mouse brain tissues were sampled, and the pathological changes of brain tissues were dynamically observed using hematoxylin and eosin (HE) staining. Immunofluorescence staining with eosinophilic cationic protein (ECP) and ionized calcium binding adaptor molecule 1 (Iba1) was used to assess the degree of eosinophil infiltration and the counts of microglial cells in mouse brain tissues in each group, and the morphological parameters of microglial cells (skeleton analysis and fractal analysis) were quantified by using Image J software to determine the morphological changes of microglial cells. In addition, the expression of M1 microglia markers Fcγ receptor III (Fcgr3), Fcγ receptor IIb (Fcgr2b) and CD86 antigen (Cd86), M2 microglia markers Arginase 1 (Arg1), macrophage mannose receptor C-type 1 (Mrc1), chitinase-like 3 (Chil3), and phagocytosis genes myeloid cell triggering receptor expressed on myeloid cells 2 (Trem2), CD68 antigen (Cd68), and apolipoprotein E (Apoe) was quantified using real-time quantitative reverse transcription PCR (RT-qPCR) assay in the mouse cerebral cortex of mice post-infection. Results A large number of A. cantonensis larvae were seen on the mouse meninges surface post-infection, and many neuronal nuclei were crumpled and deeply stained, with a large number of bleeding points in the meninges. The median Clark scores of mouse general functional impairment were 0 (interquartile range, 0), 0 (interquartile range, 0.5), 6 (interquartile range, 1.0), 14 (interquartile range, 8.5) points and 20 (interquartile range, 9.0) points in the control group and the 7-d, 14-d, 21-d and 25-d groups, respectively (H = 22.45, P < 0.01), and the median Clark scores of mouse focal functional impairment were 0 (interquartile range, 0), 2 (interquartile range, 2.5), 7 (interquartile range, 3.0), 18 (interquartile range, 5.0) points and 25 (interquartile range, 6.5) points in the control group and the 7-d, 14-d, 21-d and 25-d groups, respectively (H = 22.72, P < 0.01). The mean scores of mice general and focal functional impairment were all higher in the infection groups than in the control group (all P values < 0.05). Immunofluorescence staining showed a significant difference in the eosinophil counts in mouse brain tissues among the five groups (F = 40.05, P < 0.000 1), and the eosinophil counts were significantly higher in mouse brain tissues in the 14-d (3.08 ± 0.78) and 21-d infection groups (5.97 ± 1.37) than in the control group (1.00 ± 0.28) (both P values < 0.05). Semi-quantitative analysis of microglia immunofluorescence showed a significant difference in the counts of microglial cells among the five groups (F = 17.66, P < 0.000 1), and higher Iba1 levels were detected in mouse brain tissues in 14-d (5.75 ± 1.28), 21-d (6.23 ± 1.89) and 25-d infection groups (3.70 ± 1.30) than in the control group (1.00 ± 0.30) (all P values < 0.05). Skeleton and fractal analyses showed that the branch length [(162.04 ± 34.10) μm vs. (395.37 ± 64.11) μm; t = 5.566, P < 0.05] and fractal dimension of microglial cells (1.30 ± 0.01 vs. 1.41 ± 0.03; t = 5.266, P < 0.05) were reduced in mouse brain tissues in the 21-d infection group relative to the control group. In addition, there were significant differences among the 5 groups in terms of M1 and M2 microglia markers Fcgr3 (F = 48.34, P < 0.05), Fcgr2b (F = 55.46, P < 0.05), Cd86 (F = 24.44, P < 0.05), Arg1 (F = 31.18, P < 0.05), Mrc1 (F = 15.42, P < 0.05) and Chil3 (F = 24.41, P < 0.05), as well as phagocytosis markers Trem2 (F = 21.19, P < 0.05), Cd68 (F = 43.95, P < 0.05) and Apoe (F = 7.12, P < 0.05) in mice brain tissues. Conclusions A. cantonensis infections may induce severe pathological injuries in mouse brain tissues that are characterized by massive eosinophil infiltration and persistent activation of microglia cells, thereby resulting in progressive deterioration of neurological functions.

Objective To prepare in-house coagulation factor Ⅷ(F Ⅷ)inhibitor-positive control material and evaluate its perform-ance.Methods Frozen plasma samples from hemophilia A patients with positive factor Ⅷ inhibitors were pooled,and diluted with Owren's Veronal Buffer(OVB)to 1 BU/mL of the inhibitor concentration in the mixture,then aliquoted and freeze-stored.The homo-geneity and stability of the in-house quality control material were verified,and its suitability was further assessed through intra-laborato-ry reproducibility among different technologists and inter-laboratory comparisons.Results Twenty-one aliquots were randomly tested for homogeneity assessment,yielding an average of 1.05 BU/mL(range 0.9-1.15 BU/mL),with a standard deviation(SD)of 0.083 and coefficient of variation(CV)of 7.90％.The freshly prepared inhibitor-positive control samples contained a concentration of 1.03 BU/mL.After storage at-80℃ for 24 hours,1 week,1 month,2 months,3 months,4 months,5 months,6 months,7 months,8 months,and 9 months,thawed the samples showed relative deviations of 9％,0％,10％,9％,14％,15％,6％,0％,-10％,-5％,and 2％,respectively.The intra-laboratory CV value from different technologists at this center was 7.28％,and the inter-labora-tory CV across different centers was 18.75％.Conclusion The prepared in-house positive control material of Factor Ⅷ inhibitor ex-hibited adequate uniformity and stability.

Objective: To investigate the effects of different storage temperatures and durations on the activities of coagulation factor Ⅷ (Factor Ⅷ, FⅧ) and coagulation factor Ⅸ (Factor Ⅸ, FⅨ) after whole blood collection, so as to provide data support for the optimal storage conditions. Methods: A total of 16 mL of whole blood was collected from each of the 20 healthy volunteers at our blood center and aliquoted into 8 sodium citrate anticoagulant tubes. Two tubes were immediately centrifuged for the measurement of FⅧ and FⅨ activity levels. The remaining 6 tubes of whole blood were respectively stored under room temperature and low-temperature conditions. At 2, 4, and 6 h, the whole blood samples were centrifuged and analyzed for FⅧ and FⅨ activity levels. The mean values of the two immediately tested tubes were used as the control group, while other tubes were designated as the experimental groups for comparison. Statistical analysis was performed using SPSS 26.0. Results: The activity of FⅧ in whole blood remained stable after 4 hours of storage at both room temperature and low temperature (116.53±25.95 vs 125.22±27.33, 109.77±23.23 vs 125.22±27.33) (P>0.05 for both). However, by 6 hours, FⅧ activity showed a statistically significant decline compared to the control group (108.65±22.92 vs 125.22±27.33, 100.46±20.19 vs 125.22±27.33) (P<0.05 for both), though the room temperature group results were closer to the control values. The activity of FⅨ in whole blood remained stable after 6 hours of storage under both conditions (97.14±19.48 vs 96.76±19.67, 97.10±17.45 vs 96.76±19.6) (P>0.05 for all comparisons). Conclusion: For whole blood samples after collection, storage at either room temperature or low temperature for up to 4 hours does not compromise the accuracy of test results. When stored for 6 hours, FⅨ activity remains stable, whereas FⅧ activity decreases significantly. Notably, FⅧ activity demonstrates better stability at room temperature than under low-temperature conditions within the 6-hour storage.

Objective:To investigate the relationship between visual recovery and non-treponemal serologic test titers [tolulized red unheated serum test (TRUST) or rapid plasma reagin (RPR)] in patients with isolated ocular syphilis and those with ocular syphilis combined with neurosyphilis.Methods:A total of 35 ocular syphilis patients treated at the Department of Ophthalmology, the First Affiliated Hospital of Soochow University, and the Department of Dermatology, the Fifth People′s Hospital of Suzhou between 2016 and 2024 were enrolled. Pre-treatment serum TRUST/RPR and treponema pallidum particle agglutination (TPPA) assay results were collected for all 35 patients. Cerebrospinal fluid (CSF) biochemical, routine, TRUST/RPR, and TPPA results were obtained for 29 patients. Visual acuity (logMAR) before and after treatment was recorded for 21 patients (34 eyes). Pearson or Spearman correlation analysis was used to assess the relationship between pre-and post-treatment visual acuity, degree of visual recovery, and serum titers.Results:No significant differences in titer distribution were observed among the 35 ocular syphilis patients based on age or sex ( P>0.05). Among the 29 patients who underwent lumbar puncture, 17(58.62%) were diagnosed with ocular syphilis combined with neurosyphilis, while 12(41.38%) had isolated ocular syphilis. The proportion of patients with high pre-treatment serum titers did not differ significantly between the two groups ( P=0.294). The degree of post-treatment visual recovery showed a positive correlation with pre-treatment serum titers, indicating that higher initial titers were associated with better visual recovery (34 eyes, r=-0.302, P=0.081). Post-treatment visual acuity was positively correlated with pre-treatment visual acuity (34 eyes, r=0.547, P=0.001), suggesting that patients with poor baseline vision had worse post-treatment visual outcomes. The median visual improvement was logMAR 0.560 in the isolated ocular syphilis group and logMAR 0.202 in the neurosyphilis-combined group, with no significant difference between the two ( P=0.322). Conclusions:Ocular syphilis patients with higher pre-treatment titers exhibit better visual recovery, while poor post-treatment visual outcomes are associated with low baseline visual acuity.

Objective To prepare in-house coagulation factor Ⅷ(F Ⅷ)inhibitor-positive control material and evaluate its perform-ance.Methods Frozen plasma samples from hemophilia A patients with positive factor Ⅷ inhibitors were pooled,and diluted with Owren's Veronal Buffer(OVB)to 1 BU/mL of the inhibitor concentration in the mixture,then aliquoted and freeze-stored.The homo-geneity and stability of the in-house quality control material were verified,and its suitability was further assessed through intra-laborato-ry reproducibility among different technologists and inter-laboratory comparisons.Results Twenty-one aliquots were randomly tested for homogeneity assessment,yielding an average of 1.05 BU/mL(range 0.9-1.15 BU/mL),with a standard deviation(SD)of 0.083 and coefficient of variation(CV)of 7.90％.The freshly prepared inhibitor-positive control samples contained a concentration of 1.03 BU/mL.After storage at-80℃ for 24 hours,1 week,1 month,2 months,3 months,4 months,5 months,6 months,7 months,8 months,and 9 months,thawed the samples showed relative deviations of 9％,0％,10％,9％,14％,15％,6％,0％,-10％,-5％,and 2％,respectively.The intra-laboratory CV value from different technologists at this center was 7.28％,and the inter-labora-tory CV across different centers was 18.75％.Conclusion The prepared in-house positive control material of Factor Ⅷ inhibitor ex-hibited adequate uniformity and stability.

Objective:To investigate the relationship between visual recovery and non-treponemal serologic test titers [tolulized red unheated serum test (TRUST) or rapid plasma reagin (RPR)] in patients with isolated ocular syphilis and those with ocular syphilis combined with neurosyphilis.Methods:A total of 35 ocular syphilis patients treated at the Department of Ophthalmology, the First Affiliated Hospital of Soochow University, and the Department of Dermatology, the Fifth People′s Hospital of Suzhou between 2016 and 2024 were enrolled. Pre-treatment serum TRUST/RPR and treponema pallidum particle agglutination (TPPA) assay results were collected for all 35 patients. Cerebrospinal fluid (CSF) biochemical, routine, TRUST/RPR, and TPPA results were obtained for 29 patients. Visual acuity (logMAR) before and after treatment was recorded for 21 patients (34 eyes). Pearson or Spearman correlation analysis was used to assess the relationship between pre-and post-treatment visual acuity, degree of visual recovery, and serum titers.Results:No significant differences in titer distribution were observed among the 35 ocular syphilis patients based on age or sex ( P>0.05). Among the 29 patients who underwent lumbar puncture, 17(58.62%) were diagnosed with ocular syphilis combined with neurosyphilis, while 12(41.38%) had isolated ocular syphilis. The proportion of patients with high pre-treatment serum titers did not differ significantly between the two groups ( P=0.294). The degree of post-treatment visual recovery showed a positive correlation with pre-treatment serum titers, indicating that higher initial titers were associated with better visual recovery (34 eyes, r=-0.302, P=0.081). Post-treatment visual acuity was positively correlated with pre-treatment visual acuity (34 eyes, r=0.547, P=0.001), suggesting that patients with poor baseline vision had worse post-treatment visual outcomes. The median visual improvement was logMAR 0.560 in the isolated ocular syphilis group and logMAR 0.202 in the neurosyphilis-combined group, with no significant difference between the two ( P=0.322). Conclusions:Ocular syphilis patients with higher pre-treatment titers exhibit better visual recovery, while poor post-treatment visual outcomes are associated with low baseline visual acuity.

Objective:To investigate the effect of drospirenone and ethinylestradiol in the treatment of ovulation induction in patients with premature ovarian insufficiency (POI).Methods:A randomized controlled clinical study analyzed the clinical data of 130 POI patients who underwent assisted reproductive treatment at the Department of Reproductive Medicine, Department of Obstetrics and Gynecology, the Seventh Medical Center and Department of Obstetrics and Gynecology, the Sixth Medical Center of Chinese people's Liberation Army General Hospital from December 2021 to November 2022. The subject-centered randomization method was used to conceal the allocation, and there was no blinding. The patients in experimental group was given drospirenone and ethinylestradiol as pretreatment, while control group was not treated. The main observation indicator of the follicle recovery growth rate and the secondary observation indicators of estradiol and follicle-stimulating hormone (FSH) levels before and after pretreatment, the number of eggs retrieved, the proportion of eggs retrieved, and other embryo laboratory-related indicators were compared between the two groups.Results:The recovery rate of follicular growth in the experimental group was significantly higher than that in control group, and the difference was statistically significant [50.77% (33/65) vs. 15.38% (10/65), P<0.001, rate difference =35.38%, 95% CI: 19.44%-48.98%]. The levels of FSH [17.70 (8.15, 27.00) U/L] decreased significantly and estradiol [24.00 (15.00, 90.47) ng/L] increased significantly in the experimental group after preconditioning with spironolone ethinylestradiol compared with those before preconditioning [30.30 (25.95, 48.05) U/L, P<0.001; 15.00 (15.00, 24.00) ng/L, P<0.001], the differences were statistically significant. Conclusion:The spironolone ethinylestradiol can effectively inhibit the level of FSH and increase the level of estradiol in patients with POI, and increase the probability of ovarian growth and development during ovulation induction therapy.

Objective:To investigate the effect of drospirenone and ethinylestradiol in the treatment of ovulation induction in patients with premature ovarian insufficiency (POI).Methods:A randomized controlled clinical study analyzed the clinical data of 130 POI patients who underwent assisted reproductive treatment at the Department of Reproductive Medicine, Department of Obstetrics and Gynecology, the Seventh Medical Center and Department of Obstetrics and Gynecology, the Sixth Medical Center of Chinese people's Liberation Army General Hospital from December 2021 to November 2022. The subject-centered randomization method was used to conceal the allocation, and there was no blinding. The patients in experimental group was given drospirenone and ethinylestradiol as pretreatment, while control group was not treated. The main observation indicator of the follicle recovery growth rate and the secondary observation indicators of estradiol and follicle-stimulating hormone (FSH) levels before and after pretreatment, the number of eggs retrieved, the proportion of eggs retrieved, and other embryo laboratory-related indicators were compared between the two groups.Results:The recovery rate of follicular growth in the experimental group was significantly higher than that in control group, and the difference was statistically significant [50.77% (33/65) vs. 15.38% (10/65), P<0.001, rate difference =35.38%, 95% CI: 19.44%-48.98%]. The levels of FSH [17.70 (8.15, 27.00) U/L] decreased significantly and estradiol [24.00 (15.00, 90.47) ng/L] increased significantly in the experimental group after preconditioning with spironolone ethinylestradiol compared with those before preconditioning [30.30 (25.95, 48.05) U/L, P<0.001; 15.00 (15.00, 24.00) ng/L, P<0.001], the differences were statistically significant. Conclusion:The spironolone ethinylestradiol can effectively inhibit the level of FSH and increase the level of estradiol in patients with POI, and increase the probability of ovarian growth and development during ovulation induction therapy.

Objective:To evaluate the associations between the renalase single-nucleotide polymorphisms rs2576178 and rs10887800 and the risk of hypertension in OSA patients. Methods:A total of 3, 570 male OSA subjects diagnosed via standard polysomnography were included in this retrospective study. We recorded anthropometric, genomic, and polysomnographic parameters and blood pressure levels. All subjects were divided into four groups based on quartiles of the apnea-hypopnea index (AHI). The relationships between rs2576178 and rs10887800 and the risk of hypertension were evaluated using the binary logistic regression, and haplotype analysis.Results:In the bottom AHI quartile, rs10887800 was significantly associated with the risk of hypertension according to the dominant model [odds ratio( OR)=0.691, 95% confidence interval ( CI)=0.483-0.990, P=0.044] even after adjustment for age, sex, and the body mass index. The G-A haplotype was associated with a co-effect of the two SNPs, namely, the risk of hypertension decreased ( OR=0.879, 95% CI=0.784-0.986, P=0.028). Conclusions:We find no association between single rs2576178 or rs10887800 variants with the risk of hypertension in our OSA population. But, the synergistic effect of the two polymorphisms is associated with the risk of hypertension in OSA patients.