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Objective@#To investigate the incidence of adverse events following immunization (AEFI) of human papillomavirus (HPV) vaccines in Hangzhou City from 2017 to 2021, so as to provide insights into safety monitoring and evaluation for HPV vaccines.@*Methods@#The AEFI caused by immunization of bivalent (HPV2), quadrivalent (HPV4) and nonavalent HPV vaccines (HPV9) reported in Hangzhou City from 2017 to 2021 were captured from the AEFI Surveillance Module of Chinese Disease Control and Prevention Information System, and HPV vaccination data were captured from the Zhejiang Municipal Immunization Information Management System. The incidence, temporal distributions and clinical symptoms of AEFI were analyzed.@*Results@#Totally 922 310 doses of HPV vaccines were immunized in Hangzhou City from 2017 to 2021, and 232 cases with AEFI were reported, with an overall incidence rate of 25.15/105 doses. The reported incidence rates of AEFI caused by HPV2, HPV4 and HPV9 vaccination were 31.13/105 doses, 25.93/105 doses and 22.01/105 doses, respectively. General reactions and abnormal reactions were predominant AEFI, and the reported incidence rates of general reactions and abnormal reactions were 21.58/105 doses and 2.60/105 dose, respectively. AEFI predominantly occurred 0 to 1 day post-immunization (165 cases, 71.12%), and the main clinical symptoms included local swelling of injection sites, hard tubercle and fever, with reported incidence rates of 10.30/105 doses, 5.96/105 doses and 6.18/105 doses, respectively. @*Conclusions@#Low incidence of AEFI was reported following HPV vaccination in Hangzhou City from 2017 to 2021, and all AEFI were mild. The safety of HPV2, HPV4 and HPV9 remains high.
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Objective:To observe the urinary iodine content (UIC), breast milk iodine content (BMIC) and milk iodine excretion of lactating rats under different iodine nutrition levels, and to explore the iodine metabolism of the lactating rats under different iodine nutrition levels.Methods:Forty female Wistar rats with body weight ranging from 70 to 120 g were divided into low iodine (LI) group, normal iodine (NI) group, hight iodineⅠ (HIⅠ) group and hight iodine Ⅱ (HIⅡ) group according to body weight by random number table method, with 10 rats in each group. The rats were fed low-iodine diet, and the iodine ion concentration of drinking water in each group was 0, 325, 18 700 and 37 450 μg/L. Twenty male rats were fed according to the feed method of NI group. After 8 weeks of intervention, the male and female rats were caged and mated in a ratio of 1 ∶ 2. Milk and 24 h urine were collected on the 7th, 14th and 21st days of lactation (L7, L14 and L21), and the amount of food and drinking water consumed were recorded. The 24 h milk excretion was calculated by acute lactation test. UIC and BMIC were determined by inductively coupled plasma mass spectrometry (ICP-MS).Results:The 24 h total iodine intake of lactating rats in LI, NI, HIⅠ and HIⅡ groups were (1.84 ± 0.51), (30.51 ± 6.79), (765.95 ± 317.41) and (1 654.26 ± 560.55) μg/d, respectively. The difference between groups was statistically significant ( P < 0.001). At L7, L14 and L21, there were statistically significant differences in UIC, BMIC and milk iodine excretion at the same lactation stages among different groups ( P < 0.001). In HIⅡ group, the difference of BMIC and milk iodine excretion at different lactation stages (L7, L14, and L21) were significantly signrficant ( P < 0.05). The 24 h milk iodine excretion of LI, NI, HIⅠ and HIⅡ groups was (1.23 ± 0.85), (11.88 ± 5.23), (207.09 ± 114.51), (493.67 ± 242.47) μg, respectively. The proportion of 24 h milk iodine excretion to 24 h total iodine intake was 66.85%, 38.94%, 27.04% and 29.84%, respectively. Conclusions:About 39% of dietary iodine is supplied to offspring through milk when iodine nutrition is normal. The iodine excretion ratio of milk is increased or decreased with low and high iodine levels. These results indicate that lactating rats with different iodine nutrition levels can regulate the ratio of iodine excretion in milk through their own compensatory effect to reduce the influence of iodine deficiency and iodine excess on their offspring.
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Objective:To investigate the incidence and its related influencing factors of cervical squamous intraepithelial lesion in patients with repeated uterine prolapse.Methods:A total of 200 patients with grade Ⅲ-Ⅳ repeated uterine prolapse treated by surgery at Jintan Hospital Affiliated to Jiangsu University from January 2017 to June 2019. The patients received vaginal hysterectomy. The clinical data and postoperative pathological results of patients were collected to observe the incidence of cervical squamous intraepithelial lesion, and the influencing factors of cervical squamous intraepithelial lesion were analyzed.Results:Of the 200 patients with grade Ⅲ-Ⅳ repeated uterine prolapse, 20 cases (10.0%) had cervical squamous intraepithelial lesion, including 17 cases of low-grade squamous intraepithelial lesion and 3 cases of high-grade squamous intraepithelial lesion. The differences of age, disease course of uterine prolapse, birth times, proportion of family history of tumor, proportion of cervicitis, high-risk human papillomavirus (HPV) infection rate, classification of uterine prolapse, and the proportion of flushing before husband's sexual life between patients with cervical squamous intraepithelial lesion and patients without squamous intraepithelial lesion were statistically significant (all P < 0.05). The logistic analysis showed that disease course of uterine prolapse ( OR = 2.381, 95% CI 1.337-9.050, P = 0.002), cervicitis ( OR = 1.242, 95% CI 1.113-3.015, P = 0.032), high-risk HPV infection ( OR = 1.425, 95% CI 1.124-6.234, P = 0.020), and uterine prolapse classification ( OR = 1.632, 95% CI 1.204-7.624, P = 0.015) were independent influencing factors associated with cervical squamous intraepithelial lesion in patients with repeated uterine prolapse. Conclusion:The incidence of cervical squamous intraepithelial lesion in patients with repeated uterine prolapse is high, and the risk of cervical squamous intraepithelial lesion is increased in patients with disease course >10 years or grade Ⅳ uterine prolapse.