Bisphenols (BPs) are extensively used in food packaging, personal care products, and plastics, making them prevalent in both living and working environments, which has raised significant concern. As endocrine-disrupting chemicals, BPs exert toxic effects on the female reproductive system by binding to estrogen receptors, thereby activating or inhibiting the expression of genes related to reproductive functions, which disrupts the normal function of the endocrine system. This paper reviewed the effects of bisphenol A (BPA), bisphenol S (BPS), and bisphenol F (BPF) on female reproductive function, focusing on three key aspects: the effects on the female reproductive organs, the occurrence of associated reproductive disorders, and the mechanisms of toxicity. Specifically, this review highlighted the effects on ovarian function, uterine morphology and function, and fallopian tube function, as well as their correlation with polycystic ovary syndrome, endometriosis, miscarriage, and eclampsia. Additionally, the toxic mechanisms of BPs exposure were summarized, providing a scientific basis for future research on the impact of BPs on the female reproductive system, as well as for the assessment of potential health risks and the development of preventive measures.

Objective:To isolate and identify SARS-CoV-2 epidemic strains and analyze the sequence characteristics of the virus strains following serial passages.Methods:Eleven nasopharyngeal swabs positive for SARS-CoV-2 antigen were collected from December 2022. Quantitative real-time PCR was used to detect SARS-CoV-2 nucleic acid, and positive specimens were inoculated onto Vero cells for virus isolation. The isolated strains were identified by Western blot and indirect immunofluorescence assay. The morphology of the isolated strains was observed using transmission electron microscopy. Nucleic acid was extracted from the isolates and passaged viruses for further sequencing and analysis.Results:All 11 specimens tested positive for SARS-CoV-2 using quantitative real-time PCR. SARS-CoV-2 strains were successfully isolated from seven specimens, and could be adaptively cultured, passaged, and expanded on Vero cells, achieving a peak titer exceeding 10 6.25 50% cell culture infectious dose (CCID 50)/ml. Western blot and indirect immunofluorescence results showed that the isolates could be specifically recognized by monoclonal antibodies and convalescent serum against SARS-CoV-2. Transmission electron microscopy revealed oval-shaped viral particles with diameters of approximately 100 nm. Next-generation sequencing of the viral isolates demonstrated a sequence homology greater than 99.50% with the Wuhan-Hu-1 reference strain (NC_045512) and 99.98% among the seven isolated strains, and all of the isolates belonged to the Omicron BF.7 variant. Sequence analysis after continuous passage and plaque purification of the BJ-NVSI-20230005 isolate showed that compared with passages 1-3, passages 4-6 had one nucleotide site mutation (C→T) in the ORF1ab gene and a deletion of 3 bp in the E gene, which resulted in a change from leucine to phenylalanine and the deletion of valine, respectively. Polymorphisms were observed in the sequences of plaque-purified clones. Conclusions:The seven successfully isolated SARS-CoV-2 strains all belong to the SARS-CoV-2 BF.7 variant, which is consistent with the prevalence trend in mainland China in December 2022.

Objective:To investigate the change of chemical exchange saturation transfer (CEST) imaging in the bilateral substantia nigra (SN) and red nucleus (RN) of Parkinson disease (PD), and to explore the value of CEST-MRI for the clinical application of PD.Methods:This was a cross-sectional study. A total of 45 PD patients (PD group) and 21 sex-, age-, and cognitive-function matched normal control subjects (NC group) were retrospectively enrolled from December 2012 to July 2015 in Beijing Hospital. All subjects underwent brain CEST-MRI and routine MRI. Based on the MATLAB software package, the 4-pool Lorentz fitting model was applied to analyze the signal change of CEST imaging, which could acquire the mean amplitudes of the 4-pool parameters including Amide, nuclear overhauser enhancement (NOE), direct water saturation (DS) and magnetization transfer (MT) in the bilateral SN and RN. Independent samples t test and Mann-Whitney U test were used to compare CEST parameters between the PD group and the NC group and controlled by Bonferroni correction. The combined model was constructed based on parameters with inter-group differences after correction. The receiver operating characteristic curve and area under the curve (AUC) were used to evaluate the diagnostic efficiency of the CEST parameters and the combined model. Results:Compared with the NC group, the left SN Amide value, left RN Amide value, and right SN NOE value were reduced in the PD group, and the difference was statistically significant ( t=-3.59, corrected P=0.026; t=-3.77, corrected P=0.016; Z=-3.27, corrected P=0.017). The left SN Amide value, the left RN Amide value, the right SN NOE value, and the combined model all had good diagnostic efficacy in the differentiation of the PD group from the HC group (AUCs of 0.78, 0.79, 0.75, and 0.81, respectively). The combined model had the highest AUC value (0.81) and specificity (97.78%), the Amide value of left SN had the highest sensitivity (93.33%). Conclusions:Quantitative analysis of CEST-MRI based on the 4-pool Lorentz fitting model shows significant differences in the CEST quantitative indicators of the SN and RN between the PD group and the NC group, demonstrating good potential for clinical application in the diagnosis of PD.

This paper systematically analyzed the ancient monographs of acupuncture and moxibustion and comprehensive medical books from pre-Qin to 1911， and extracted the data according to the etiology and pathogenesis， treatment principles and methods， acupoint selection， needling and moxibustion， and taboos of needling and moxibustion. The pathogenesis of migraine in ancient books and documents is summarized as "the causes are diverse， and phlegm-dampness is the majority". For treatment， the features include "needling has a sequence， and the root and the branch should be treated separately" and "focusing on tonifying deficiency and drain excess". It is also obtained of the rich ideas of acupoints selection， extensive application records of moxibustion， unique application of bloodletting therapy and clear explanation of acupuncture and moxibustion taboos. All mentioned above is expected to enrich the ideas and methods of modern migraine treatment and improve the clinical effects.

Abstract Adolescent online game addiction is a common and typical public health problem for all countries in the world. The United States, the United Kingdom and Germany have taken a series of effective measures in the prevention of adolescent online game addiction, such as strengthening government supervision, improving legislation, promoting industry self-discipline, creating organizations and institutions to prevent and control online addiction, regulating the order of online game market as well as enriching the after school life of teenagers. The article aims to summarize and learn from the practical experiences of the United States, the United Kingdom and Germany, and combine them with the actual situation in China to formulate preventive measures against adolescent online game addiction that are suitable for the Chinese context.

Objective:To evaluate the 10-year protective effect and immunogenicity of quadrivalent human papillomavirus (HPV) vaccine in Chinese women aged 20 to 45 years.Methods:From October 2019 to April 2020, a long-term follow-up study was conducted on the subjects of the Phase III clinical trial of the quadrivalent HPV vaccine (NCT00834106). Participants underwent a questionnaire survey, venous blood sampling, gynecological examination, cervical exfoliated cell pathology examination, and serum neutralizing antibody titers for HPV-6, 11, 16, and 18 were measured using a pseudovirus neutralization assay. The results of the cytological examination and the positive rate and titers of serum antibodies of different cervical exfoliated cells were compared.Results:A total of 889 subjects were followed up, including 240 in the control group, 453 in the vaccination group and 196 in the post-trial vaccination group. The age of the control group was (40±7) years old, which was higher than that of the supplementary vaccination group and the vaccination group [(38±4) and (38±6) years old, respectively] ( P<0.05). There were no statistically significant differences in condom use and sexual frequency among all groups (all P values>0.05). The abnormal proportion of cervical exfoliation cytopathology in the vaccination group was 3.7% (17/453), which was significantly lower than that in the control group [9.6% (23/240)] and post-trial vaccination group [5.6% (11/196)] ( P<0.05). There were two cases of cervical intraepithelial neoplasia (CIN) grade 1 in the vaccination group, two cases of CIN grade 1 and three cases of CIN grade 2 and above in the control group, and no CIN grade 1 and above cases in the post-trial vaccination group. The positive rate of HPV-18 antibody was 35.5% (161/453) in the vaccination group and 76.0% (149/196) in the post-trial vaccination group, which was significantly lower than that of other types ( P<0.05). The neutralizing antibody GMT ratio between the vaccination group and the control group ranged from 2.62 to 25.33 (9.05 to 83.08). Conclusion:Protective neutralizing antibodies are sustained in Chinese women aged 20 to 45 years after ten years of vaccination with quadrivalent HPV vaccine.

Objective:To evaluate the 10-year protective effect and immunogenicity of quadrivalent human papillomavirus (HPV) vaccine in Chinese women aged 20 to 45 years.Methods:From October 2019 to April 2020, a long-term follow-up study was conducted on the subjects of the Phase III clinical trial of the quadrivalent HPV vaccine (NCT00834106). Participants underwent a questionnaire survey, venous blood sampling, gynecological examination, cervical exfoliated cell pathology examination, and serum neutralizing antibody titers for HPV-6, 11, 16, and 18 were measured using a pseudovirus neutralization assay. The results of the cytological examination and the positive rate and titers of serum antibodies of different cervical exfoliated cells were compared.Results:A total of 889 subjects were followed up, including 240 in the control group, 453 in the vaccination group and 196 in the post-trial vaccination group. The age of the control group was (40±7) years old, which was higher than that of the supplementary vaccination group and the vaccination group [(38±4) and (38±6) years old, respectively] ( P<0.05). There were no statistically significant differences in condom use and sexual frequency among all groups (all P values>0.05). The abnormal proportion of cervical exfoliation cytopathology in the vaccination group was 3.7% (17/453), which was significantly lower than that in the control group [9.6% (23/240)] and post-trial vaccination group [5.6% (11/196)] ( P<0.05). There were two cases of cervical intraepithelial neoplasia (CIN) grade 1 in the vaccination group, two cases of CIN grade 1 and three cases of CIN grade 2 and above in the control group, and no CIN grade 1 and above cases in the post-trial vaccination group. The positive rate of HPV-18 antibody was 35.5% (161/453) in the vaccination group and 76.0% (149/196) in the post-trial vaccination group, which was significantly lower than that of other types ( P<0.05). The neutralizing antibody GMT ratio between the vaccination group and the control group ranged from 2.62 to 25.33 (9.05 to 83.08). Conclusion:Protective neutralizing antibodies are sustained in Chinese women aged 20 to 45 years after ten years of vaccination with quadrivalent HPV vaccine.

Objective:To investigate the incidence of various non-motor symptoms (NMS) in early stage of Parkinson′s disease (PD) patients and the differences between the body-first and brain-first subtypes.Methods:A total of 121 patients with PD (Hoehn-Yahr stage 1-2) were recruited from PD Clinic, Department of Neurology, Beijing Hospital from January 2012 to January 2015. The general information and clinical features of the patients were collected. The minimal diagnostic criteria of parasomnias described in the International Classification of Sleep Disorders-Revised were used to diagnose rapid eye movement sleep behavior disorder (RBD).According to the sequence of RBD and motor symptoms, the patients were divided into 2 groups: body-first subtype and brain-first subtype. NMS was evaluated by the Non-Motor Symptom Questionnaire (NMSQuest). The clinical features and the incidence of various NMS were compared between the 2 groups. The Unified Parkinson′s Disease Rating Scale (UPDRS) was used to evaluate the severity of the disease, and its third part (UPDRS-Ⅲ) was used to evaluate the motor function of the patients. Hamilton Rating Scale for Depression (HAMD) and Hamilton Rating Scale for Anxiety (HAMA) were used to evaluate the depression and anxiety status of the patients. The sleep status of patients was assessed by Parkinson′s Disease Sleep Scale (PDSS). The quality of life of the patients was assessed by 39-item Parkinson′s Disease Questionnaire (PDQ-39).Results:Of all the patients, 49.59% (60/121) had the body-first subtype and 50.41% (61/121) had the brain-first subtype of PD. There was no significant difference in UPDRS-Ⅲ score between the 2 groups. The average number of NMS in all PD patients was 10.97±4.88. Body-first subtype patients had higher NMS incidence than brain-first subtype in difficulty in swallowing [46.7% (28/60) vs 23.0% (14/61), χ 2=7.507, P=0.006], nausea and vomiting [16.7% (10/60) vs 3.3% (2/61), χ 2=6.069, P=0.014], constipation [85.0% (51/60) vs 55.7% (34/61), χ 2=12.393, P<0.001], fecal incontinence [8.3% (5/60) vs 0 (0/61), χ 2=5.302, P=0.021], difficulty in remembering recent events [58.3% (35/60) vs 32.8% (20/61), χ 2=7.962, P=0.005], loss of interest [43.3% (26/60) vs 24.6% (15/61), χ 2=4.743, P=0.029], inattention [45.0% (27/60) vs 19.7% (12/61), χ 2=8.884, P=0.003], depression [55.0% (33/60) vs 34.4% (21/61), χ 2=5.181, P=0.023], intense vivid dreams [73.3% (44/60) vs 39.3% (24/61), χ 2=14.196, P<0.001] and restless legs [53.3% (32/60) vs 27.9% (17/61), χ 2=8.140, P=0.004]. The differences were significant. Body-first subtype and NMSQuest ( r=-0.489, P<0.001), UPDRS ( r=-0.189, P=0.038), HAMD ( r=-0.231, P=0.011), HAMA ( r=-0.298, P=0.001) and PDQ-39 scores ( r=-0.276, P=0.002) were negatively correlated. Body-first subtype and PDSS score was positively correlated. NMSQuest (Δ R2=0.265, P<0.001) was the main determinant of PDQ-39 score. Conclusions:PD patients are accompanied by various NMS, which is a major factor affecting the quality of life. Compared with brain-first subtype, body-first subtype might have more NMS burden and higher incidence rate in most NMS in early PD patients.

Objective:To investigate the prognoses of pulmonary adenocarcinoma patients with leptomeningeal metastases (LM) and explore their influencing factors.Methods:A retrospective analysis was performed. The clinical data, imaging features and treatment plans of pulmonary adenocarcinoma patients with LM admitted to our hospital from January 2010 to June 2021 were collected. Overall survival (OS) was used as the prognostic evaluation criterion and patients were divided into good prognosis group (OS≥6 months) and poor prognosis group (OS<6 months) accordingly. Logistic regression analysis was used to evaluate the influencing factors for prognoses of pulmonary adenocarcinoma patients with LM. These patients were grouped according to different Karnofsky performance status (KPS) scores and different treatment methods, and survival curves were drawn to compare their OS.Results:A total of 173 pulmonary adenocarcinoma patients with LM were enrolled in the study, including 75 with good prognosis and 87 with poor prognosis. There were significant differences in the KPS scores, pulmonary adenocarcinoma lesion controlled status, giving third generation tyrosine kinase inhibitor (TKI) therapy or not, giving systemic chemotherapy and/or whole brain radiotherapy or not between the two groups ( P<0.05). Multivariate Logistic regression analysis showed that KPS scores and pulmonary adenocarcinoma lesion controlled status were independent influencing factors for prognoses ( OR=4.186, 95%CI: 1.583-11.070, P=0.004; OR=4.198, 95%CI: 1.499-11.760, P=0.006). Survival curves showed median OS of 8.2 months for all patients ( 95%CI: 6.5-9.8). The OS in patients with low-risk(KPS scores≥60) was significantly higher than that in patients with high-risk(KPS scores<60), that in patients accepted TKI treatment was significantly higher than that in patients not accepted TKI treatment, and that in patients accepted TKI and systemic chemotherapy was significantly higher than that in patients accepted TKI alone ( P<0.05). Conclusion:Patients with high KPS scores and controlled pulmonary adenocarcinoma can have relatively good prognosis; TKI treatment and combination therapy may prolong OS of these patients.

Objective:To analyze the risk factors of bronchopulmonary dysplasia(BPD)in very preterm infants(VPI), and to provide scientific basis for the prevention and treatment of BPD in VPI.Methods:A prospective multicenter study was designed to collect the clinical data of VPI in department of neonatology of 28 hospitals in 7 regions from September 2019 to December 2020.According to the continuous oxygen dependence at 28 days after birth, VPI were divided into non BPD group and BPD group, and the risk factors of BPD in VPI were analyzed.Results:A total of 2 514 cases of VPI including 1 364 cases without BPD and 1 150 cases with BPD were enrolled.The incidence of BPD was 45.7%.The smaller the gestational age and weight, the higher the incidence of BPD( P<0.001). Compared with non BPD group, the average birth age, weight and cesarean section rate in BPD group were lower, and the incidence of male infants, small for gestational age and 5-minute apgar score≤7 were higher( P<0.01). In BPD group, the incidences of neonatal respiratory distress syndrome(NRDS), hemodynamically significant patent ductus arteriosus, retinopathy of prematurity, feeding intolerance, extrauterine growth restriction, grade Ⅲ~Ⅳ intracranial hemorrhage, anemia, early-onset and late-onset sepsis, nosocomial infection, parenteral nutrition-associated cholestasis were higher( P<0.05), the use of pulmonary surfactant(PS), postnatal hormone exposure, anemia and blood transfusion were also higher, and the time of invasive and non-invasive mechanical ventilation, oxygen use and total hospital stay were longer( P<0.001). The time of starting enteral nutrition, cumulative fasting days, days of reaching total enteral nutrition, days of continuous parenteral nutrition, days of reaching 110 kcal/(kg·d) total calorie, days of reaching 110 kcal/(kg·d) oral calorie were longer and the breastfeeding rate was lower in BPD group than those in non BPD group( P<0.001). The cumulative doses of amino acid and fat emulsion during the first week of hospitalization were higher in BPD group( P<0.001). Multivariate Logistic regression analysis showed that NRDS, invasive mechanical ventilation, age of reaching total enteral nutrition, anemia and blood transfusion were the independent risk factors for BPD in VPI, and older gestational age was the protective factor for BPD. Conclusion:Strengthening perinatal management, avoiding premature delivery and severe NRDS, shortening the time of invasive mechanical ventilation, paying attention to enteral nutrition management, reaching whole intestinal feeding as soon as possible, and strictly mastering the indications of blood transfusion are very important to reduce the incidence of BPD in VPI.