Objective To analyze the newly reported HIV-1 infection in several prefectures of Hubei Province，and analyze its influencing factors. Methods The limiting antigen avidity enzyme immunoassay(LAg-avidity EIA,LAg) was conducted on HIV-1 positive samples confirmed by Western blot of Hubei in 2017-2022. The demographic characteristics of the newly infected samples were analyzed by χ2 test.Logistic regression model was used to analyze influencing factors of new infection rate and predict the factors associated with the HIV-1 recent infection. Results There were 403 new cases of HIV-1 from 2017 to 2022 in several prefectures of Hubei Province, of which 77 were newly infected sorted by LAg,with a new infection rate of 19.11%. The newly confirmed HIV-1 persons of whom aged ≤24 years (40.00% new infection ratio), unmarried (29.41%), college or above (31.37%), and from Voluntary counseling and testing testing(VCT) clinics (40.00%) had a higher proportion of new infections, and the difference was statistically significant. Multivariate Logistic regression analysis showed that age ≤24 years old (aOR=4.346,95%CI: 1.342-14.075) and screening from the VCT clinic (aOR=6.761,95%CI: 1.460-31.319) were more likely to be newly infected. Conclusion The proportion of new HIV infection in several prefectures of Hubei province is relatively low in recent years.Further effective publicity and intervention measures for young students and the construction of VCT clinic should be continuously promoted to achieve early diagnosis and treatment.

Objective: To investigate the current status of pulmonary ventilation function and its influencing factors among the population aged ≥35 years at high risk for chronic obstructive pulmonary disease (COPD) in Baoshan District, Shanghai Municipality, so as to provide the evidence for formulating regional COPD prevention and control strategies. Methods: From January 2023 to July 2025, a convenience sampling method was used to recruit COPD high-risk individuals among permanent residents aged ≥35 years in Baoshan District. Demographic information including gender and age was collected through the Shanghai New Chronic Disease Integrated Information System. Height, weight, and waist circumference were measured. Pulmonary ventilation function was assessed by measuring forced expiratory volume in one second (FEV1), forced vital capacity (FVC), peak expiratory flow (PEF), peak inspiratory flow (PIF), and instantaneous forced expiratory flow at 50% of FVC (FEF50). Multivariable logistic regression model was used to analyze influencing factors for pulmonary ventilation function abnormalities among COPD high-risk population. Results: A total of 5 763 COPD high-risk individuals were surveyed, including 2 970 males (51.54%) and 2 793 females (48.46%). The values of FEV1, FVC, FEV1/FVC, PEF, PIF, and FEF50 were (2.12±0.68) L, (2.83±0.85) L, (75.33±12.77)%, (4.58±1.93) L/s, (2.62±1.23) L/s, and (2.54±1.26) L/s, respectively. A total of 1 399 individuals (24.28%) were identified with pulmonary ventilation function abnormalities. Multivariable logistic regression analysis showed that female (OR=0.612, 95%CI: 0.526-0.713), junior college or above (OR=0.705, 95%CI: 0.516-0.962), urban residence (OR=0.477, 95%CI: 0.401-0.568), regular physical activity (OR=0.655, 95%CI: 0.575-0.745), and higher body mass index (OR=0.946, 95%CI: 0.926-0.967) were associated with a lower risk of pulmonary ventilation function abnormalities among COPD high-risk individuals. Conversely, current smoking (OR=1.356, 95%CI: 1.075-1.709), exposure to secondhand smoke (OR=1.493, 95%CI: 1.259-1.770), and exposure to famine during adolescence (OR=1.958, 95%CI: 1.046-3.665) were associated with a higher risk. Conclusion The overall status of pulmonary ventilation function among COPD high-risk population in Baoshan District is moderate, with a relatively high abnormality rate, which is mainly influenced by gender, educational level, region, regular physical activity, body mass index, tobacco exposure, and famine exposure.

Objective To compare the performance of two different deep learning models,VTcGAN and Pix2pix,in generating synthetic computed tomography(sCT)from magnetic resonance imaging(MRI)of nasopharyngeal carcinoma(NPC),and to evaluate their accuracies in treatment planning dose calculations.Methods MRI and CT images as well as treatment planning data of 115 NPC patients were retrospectively selected,and paired dataset was obtained through rigid image registration,with 105 cases as the training set,and the remaining 10 cases as the test set.Two kinds of models,namely Pix2pix model based on conventional convolutional neural network and the improved VTcGAN model based on Transformer network,were constructed with the consistent structure except for the bottleneck network in the generator.The generated sCT images(sCTPix2pix and sCTVTcGAN)were assessed in terms of image quality,intensity value and dosimetric differences.Results For the cases in test set,the mean error,mean absolute error,peak signal-to-noise ratio,and structural similarity index between the ground truth CT images and the sCTPix2pix were(-0.86±12.42)HU,(40.77±3.06)HU,(33.45±0.62)dB,and 0.928±0.013,respectively;and those between the ground truth CT images and the sCTVTcGAN were(-1.10±8.56)HU,(37.40±2.08)HU,(34.33±0.45)dB,and 0.936±0.009,respectively.For the criterion of 1 mm/1%,the averaged gamma passing rates of sCTPix2pix and sCTVTcGAN were(96.62±1.08)%and(96.88±0.99)%at a dose threshold of 10%,(94.31±1.03)%and(94.72±0.91)%at a dose threshold of 50%,(84.62±1.74)%and(86.06±1.41)%at a dose threshold of 80%,respectively.Conclusion The proposed VTcGAN model is superior to the traditional Pix2pix model in terms of accuracy in generating sCT from MRI of NPC,and it can fulfill the requirements for dose calculation in the MRI-Only workflow.

Objective To compare the performance of two different deep learning models,VTcGAN and Pix2pix,in generating synthetic computed tomography(sCT)from magnetic resonance imaging(MRI)of nasopharyngeal carcinoma(NPC),and to evaluate their accuracies in treatment planning dose calculations.Methods MRI and CT images as well as treatment planning data of 115 NPC patients were retrospectively selected,and paired dataset was obtained through rigid image registration,with 105 cases as the training set,and the remaining 10 cases as the test set.Two kinds of models,namely Pix2pix model based on conventional convolutional neural network and the improved VTcGAN model based on Transformer network,were constructed with the consistent structure except for the bottleneck network in the generator.The generated sCT images(sCTPix2pix and sCTVTcGAN)were assessed in terms of image quality,intensity value and dosimetric differences.Results For the cases in test set,the mean error,mean absolute error,peak signal-to-noise ratio,and structural similarity index between the ground truth CT images and the sCTPix2pix were(-0.86±12.42)HU,(40.77±3.06)HU,(33.45±0.62)dB,and 0.928±0.013,respectively;and those between the ground truth CT images and the sCTVTcGAN were(-1.10±8.56)HU,(37.40±2.08)HU,(34.33±0.45)dB,and 0.936±0.009,respectively.For the criterion of 1 mm/1%,the averaged gamma passing rates of sCTPix2pix and sCTVTcGAN were(96.62±1.08)%and(96.88±0.99)%at a dose threshold of 10%,(94.31±1.03)%and(94.72±0.91)%at a dose threshold of 50%,(84.62±1.74)%and(86.06±1.41)%at a dose threshold of 80%,respectively.Conclusion The proposed VTcGAN model is superior to the traditional Pix2pix model in terms of accuracy in generating sCT from MRI of NPC,and it can fulfill the requirements for dose calculation in the MRI-Only workflow.

ObjectiveTaking Shengxuebao as the model traditional Chinese medicine（TCM）， this study aims to explore the methodologies and transfer patterns in the composition changes of TCM compound preparations from liquid to solid dosage forms. MethodBased on the previously established ultra-high performance liquid chromatography（UPLC） qualitative and quantitative methods for Shengxuebao， the fingerprint profiles of three preparations of Shengxuebao（homemade decoction， commercially available granules and mixtures） were established， and nineteen components were quantitatively analyzed. The similarities of fingerprint profiles among these three preparations were assessed using the Similarity Evaluation System for Chromatographic Fingerprint of TCM（2012 edition） and the total quantum statistical moment similarity method， respectively. The molecular connectivity index （MCI） and the average molar MCI of the chemical components in the three preparations were calculated. Seventy-two MCI values across 0-8 orders， including 8 subclasses， were calculated. The average molar MCI of 0-3 orders was used to study the "imprint template" structural characteristics and transfer patterns of the medicinal component groups. ResultThe similarities of the fingerprint profile of the decoction with those of the control， granules， and mixtures were 0.971， 0.888 and 0.799， respectively， indicating that the chemical composition of the granules and mixtures differed from that of the decoction， and that the 19 components were able to basically respond to the overall situation of the component group of Shengxuebao decoction. The total mass fractions of the detectable major components in Shengxuebao decoction， granules and mixtures was measured to be 5.498 6， 2.282 0， 1.416 6 mg·g^-1， respectively. The average molar MCI of 0-3 orders showed a gradual decrease across the three preparations， with the trend of decoction>granules>mixtures， indicating subtle changes in the overall structural characteristics of the chemical components in the samples of the three preparations. ConclusionAmong the three formulations of Shengxuebao， the traditional decoction contained the highest variety and quantity of components and carried the most substantial amount of component information， with a decreasing order observed in the granules and mixtures. This study further validates that traditional decoction is a reliable and fundamental dosage form， providing a reference for the modernization of TCM dosage forms and the quality consistency evaluation of compound preparations.

Objective To explore the application of nucleic acid test in the diagnosis of HIV western blotting (WB) indeterminate and negative samples. Methods A total of 2 518 HIV samples to be confirmed were collected from the Hubei HIV Confirmation Center Laboratory from 2014 to 2022. The results of follow-up antibody test and nucleic acid test of WB indeterminate and negative samples were analyzed, and the diagnostic rate, sensitivity, specificity and coincidence rate of the two detection strategies were compared. Results There were totally 133 indeterminate or negative samples by WB test. Of the 99 indeterminate samples , 76 (76.77%) had nucleic acid test results >5000 copies/mL. 40 cases were followed up, of which 33 cases (82.50%) turned positive and 7 (17.50%) were still uncertain. Of the 7 samples with 20~5000 copies /mL (7.07%), 2 cases were followed up and both turned positive during the follow-up. 1 case (1.01%) with nucleic acid <20 copies/mL turned positive during follow-up. Among the 34 WB negative samples, 15 cases (45.45%) were > 5 000 copies/mL, 9 of which were seroconversion. The diagnostic rates of ^“antibody confirmation^” and ^“nucleic acid test^” were 96.78% (2 437/2 518) and 99.60% (2 508/2 518), respectively. The sensitivities were 98.02% (2 430/2 479) and 99.88% (2476/2 479), and the specificities were 78.13% (25/32) and 100.00 % (32/32), respectively. The coincidence rates were 97.77% (2 455/2 511) and 99.88% (2 508/2 511), respectively. Conclusion Nucleic acid supplemental test strategy has high diagnostic rate, sensitivity, specificity and coincidence rate. WB indeterminate and negative samples can be diagnosed as early as possible through nucleic acid supplemental testing.

Objective:To explore the application value of 3.0T magnetic resonance imaging(MRI)combined with transvaginal ultrasound elastography technique in diagnosing uterine fibroids and adenomyosis.Methods:A retrospective analysis was performed on 56 patients with uterine fibroids and 41 patients with adenomyosis who admitted to Fengfeng General Hospital of North China Medical and Health Group from January 2021 to January 2022.MRI and transvaginal ultrasound elastography were respectively performed on all patients,and pathological diagnosis was taken as the"gold standard".The diagnostic results of MRI,transvaginal ultrasound elastography technique and their combination were compared,and the diagnostic situation of different examination methods were recorded.And then,the total coincidence rate was analyzed,and the sensitivity,specificity and accuracy were further calculated.Results:The totally diagnostic coincidence rate of MRI combined with transvaginal ultrasound elastography was 96.43% in detecting uterine fibroids,and that of MRI was 75.00%,and that of transvaginal ultrasonography was 80.36%.The differences of totally diagnostic coincidence rates among combined detection and single detection were significant(x2=10.500,7.049,P＜0.05).The totally diagnostic coincidence rate of MRI combined with transvaginal ultrasound elastography was 97.56% in detecting adenomyosis,which was significantly higher than that(78.05%)of MRI and that(78.05%)of transvaginal ultrasound elastography,and the differences were significant(x2=7.289,7.289,P＜0.05).The sensitivities of single MRI,single transvaginal ultrasound elastography and the combined detection of them were 71.74%,78.26% and 95.62% in detecting uterine fibroids,and the specificities of them were 90.00%,90.00% and 100.00%,and the accuracies of them were 75.00%,80.36% and 96.43%,respectively.The sensitivity and accuracy of the combined detection were significantly higher than those of single MRI detection(x2=5.029,10.500,P＜0.05),respectively.The accuracy of the combined detection was significantly higher than that of the single detection of vaginal ultrasonography(x2=7.049,P＜0.05).The sensitivities of single MRI,single transvaginal ultrasound elastography and the combined detection of them were 81.25%,78.73% and 96.88% in detecting adenomyosis,and the specificities of them were 66.67%,77.78% and 100.00%,and the accuracies of them were 78.05%,78.05% and 97.56%,respectively.The accuracy of the combined detection was significantly higher than that of single MRI detection(x2=7.289,P＜0.05),and the accuracy of the combined detection was significantly higher than that of single detection of vaginal ultrasonography(x2=7.289,P＜0.05).Conclusion:The diagnosis rate of MRI combined with transvaginal ultrasound elastography technique is higher for uterine fibroids and adenomyosis,which has better diagnostic value,and can provide reliable reference materials for clinicians in performing treatment.

Objective To investigate the prevalence of primary drug resistance among HIV-1 patients in Hubei Province from 2020 to 2022, and to provide corresponding basis and data support for HIV antiviral therapy (ART) in Hubei Province. Methods During 2020-2022, plasma samples of HIV-1 infected patients before ART were collected., Patients’ demographic data and baseline laboratory test data were also collected. HIV-1 pol region was amplified by in-house method for sub-type typing and drug-resistant mutation site analysis. Results The pol gene sequence was successfully amplified in 242 of 285 cases, with a success rate of 84.9%. CRF07_BC was the predominant HIV-1 sub-type, accounting for 47.11% (114/242), followed by CRF01_AE, accounting for 25.21% (61/242), sub-type B, accounting for 14.16% (35/242), and CRF55_01B, accounting for 4.13% (10/242). The primary resistance rate was 6.20% (15/242). The mutation site of nucleoside reverse transcriptase inhibitors (NRTIs) was mainly M184V, and the mutation sites of non-nucleoside reverse transcriptase inhibitors (NNRTIs) were mainly E138A/G/EG and V179E. These different mutation sites led to different degrees of drug resistance to 12 drugs. The incidence of drug resistance mutation of CRF55_01B sub-type was significantly higher than that of other sub-types. Conclusion The primary drug resistance rate of HIV-1 infected patients is at a slightly high level in Hubei Province, and close monitoring of primary drug resistance and mutation sites should be strengthened before ART, especially for CRF55_01B sub-type.

Objective:To investigate the distribution characteristics and analyze the clinical significance of dermatophagoides pteronyssinus allergen components in children with allergic rhinitis and asthma in Shenzhen.Methods:This study was a cross-sectional study. The clinical data of children with allergic rhinitis and asthma induced by dust mites admitted to the allergy clinic of Shenzhen Children′s Hospital from 2021 to 2024 were collected and the serum sIgE levels of dermatophagoides pteronyssinus, dermatophagoides farinae (Der p, Der f) and dermatophagoides pteronyssinus components (Der p 1, Der p 2, Der p 10, Der p 23) were detected by magnetic bead chemiluminescence method. The correlation between dermatophagoides pteronyssinus allergen components and clinical data of children was analyzed. According to the diagnosis, the children were divided into allergic rhinitis (AR) group and AR with asthma (ARAS) group. According to the age, the children were divided into preschool age (5 years ≤age<7 years), school age (7 years ≤age<10 years) and adolescence (10 years ≤age≤15 years). The expression differences of dermatophagoides pteronyssinus components among AR group and ARAS group and different age groups were compared.Results:A total of 314 children with allergic rhinitis and asthma caused by dust mites were included in the study, of whom 112 were male and 202 were female. There were 188 cases of AR and 126 cases of ARAS, aged 5-15 years, with a median age of 7.54 years and an average age of (8.02±2.24) years. BMI was 13.89-31.76 kg/m 2,the median BMI was 15.87 kg/m2 and average BMI was (16.55±3.05) kg/m2. There was not statistically significant difference in gender, age, BMI, blood eosinophils, blood basophils, FeNO, FVC and FEV1 between the AR group and the ARAS group ( P>0.05). There was significant difference in FEV1/FVC and small airway function indexes MMEF, MEF75%, MEF50% and MEF25% between the AR group and the ARAS group ( P<0.05). In the 314 children, the dermatophagoides pteronyssinus allergen components sensitization rates were in the order of Der p 1 (97.1%), Der p 2 (89.8%), Der p 23 (55.1%), Der p 10 (8.6%), and the difference in the positive rate was statistically significant (χ 2=658.31, P<0.001). There was not significant difference in Der p 1, Der p 2 and Der p 10 among children of different ages ( P>0.05). There was significant difference in Der p 23 among children of different ages (χ 2=7.29, P=0.03). A correlation analysis showed that Der p, Der f, Der p 1 and Der p 2 had a high positive correlation ( P<0.001). Eosinophils are positively correlated with Der p, Der f, Der p 1, Der p 2, Der p 10 and Der p 23 ( P<0.001). FeNO is positively correlated with Der p, Der f, and Der p 23 ( P<0.05). Small airway function indicators MMEF, MEF50% and MEF25% are negatively correlated with Der p, Der f and Der p 1 ( P<0.05). The sIgE levels of Der p, Der f, Der p 1, Der p 2 and Der p 10 in the AR group were significantly lower than those in the ARAS group ( P<0.05). In the ARAS group, 120 cases (95.24%) showed positive results for at least 2 dermatophagoides pteronyssinus components, while 71 cases (56.35%) showed positive results for at least 3 dermatophagoides pteronyssinus components. In the AR group, 171 cases (90.96%) showed positive results for at least 2 dermatophagoides pteronyssinus components, while 94 cases (50.00%) showed positive results for at least 3 dermatophagoides pteronyssinus components. Conclusion:Der p 1, Der p 2 and Der p 23 may be the main dermatophagoides pteronyssinus allergen components that induce allergic rhinitis and asthma in Shenzhen City. The elevation of sIgE levels in the dermatophagoides pteronyssinus components can aggravate the severity of lower airway eosinophilic inflammation and airway obstruction. Attention should be paid to the detection of dermatophagoides pteronyssinus components in children with poor response to dust mite-allergen specific immunotherapy.

Objective:To investigate the distribution characteristics and analyze the clinical significance of dermatophagoides pteronyssinus allergen components in children with allergic rhinitis and asthma in Shenzhen.Methods:This study was a cross-sectional study. The clinical data of children with allergic rhinitis and asthma induced by dust mites admitted to the allergy clinic of Shenzhen Children′s Hospital from 2021 to 2024 were collected and the serum sIgE levels of dermatophagoides pteronyssinus, dermatophagoides farinae (Der p, Der f) and dermatophagoides pteronyssinus components (Der p 1, Der p 2, Der p 10, Der p 23) were detected by magnetic bead chemiluminescence method. The correlation between dermatophagoides pteronyssinus allergen components and clinical data of children was analyzed. According to the diagnosis, the children were divided into allergic rhinitis (AR) group and AR with asthma (ARAS) group. According to the age, the children were divided into preschool age (5 years ≤age<7 years), school age (7 years ≤age<10 years) and adolescence (10 years ≤age≤15 years). The expression differences of dermatophagoides pteronyssinus components among AR group and ARAS group and different age groups were compared.Results:A total of 314 children with allergic rhinitis and asthma caused by dust mites were included in the study, of whom 112 were male and 202 were female. There were 188 cases of AR and 126 cases of ARAS, aged 5-15 years, with a median age of 7.54 years and an average age of (8.02±2.24) years. BMI was 13.89-31.76 kg/m 2,the median BMI was 15.87 kg/m2 and average BMI was (16.55±3.05) kg/m2. There was not statistically significant difference in gender, age, BMI, blood eosinophils, blood basophils, FeNO, FVC and FEV1 between the AR group and the ARAS group ( P>0.05). There was significant difference in FEV1/FVC and small airway function indexes MMEF, MEF75%, MEF50% and MEF25% between the AR group and the ARAS group ( P<0.05). In the 314 children, the dermatophagoides pteronyssinus allergen components sensitization rates were in the order of Der p 1 (97.1%), Der p 2 (89.8%), Der p 23 (55.1%), Der p 10 (8.6%), and the difference in the positive rate was statistically significant (χ 2=658.31, P<0.001). There was not significant difference in Der p 1, Der p 2 and Der p 10 among children of different ages ( P>0.05). There was significant difference in Der p 23 among children of different ages (χ 2=7.29, P=0.03). A correlation analysis showed that Der p, Der f, Der p 1 and Der p 2 had a high positive correlation ( P<0.001). Eosinophils are positively correlated with Der p, Der f, Der p 1, Der p 2, Der p 10 and Der p 23 ( P<0.001). FeNO is positively correlated with Der p, Der f, and Der p 23 ( P<0.05). Small airway function indicators MMEF, MEF50% and MEF25% are negatively correlated with Der p, Der f and Der p 1 ( P<0.05). The sIgE levels of Der p, Der f, Der p 1, Der p 2 and Der p 10 in the AR group were significantly lower than those in the ARAS group ( P<0.05). In the ARAS group, 120 cases (95.24%) showed positive results for at least 2 dermatophagoides pteronyssinus components, while 71 cases (56.35%) showed positive results for at least 3 dermatophagoides pteronyssinus components. In the AR group, 171 cases (90.96%) showed positive results for at least 2 dermatophagoides pteronyssinus components, while 94 cases (50.00%) showed positive results for at least 3 dermatophagoides pteronyssinus components. Conclusion:Der p 1, Der p 2 and Der p 23 may be the main dermatophagoides pteronyssinus allergen components that induce allergic rhinitis and asthma in Shenzhen City. The elevation of sIgE levels in the dermatophagoides pteronyssinus components can aggravate the severity of lower airway eosinophilic inflammation and airway obstruction. Attention should be paid to the detection of dermatophagoides pteronyssinus components in children with poor response to dust mite-allergen specific immunotherapy.