1.Surveillance of schistosomiasis and snail status in Jiaxing City from 2001 to 2024
GU Weiling ; PENG Hanqi ; LÜ ; Dabing ; FU Xiaofei ; QI Yunpeng ; XIE liang ; XIANG Zelin
Journal of Preventive Medicine 2025;37(9):897-902
Objective:
To analyze the surveillance data of schistosomiasis and snail status in Jiaxing City, Zhejiang Province from 2001 to 2024, so as to provide the reference for prevention and control of schistosomiasis in jiaxing City.
Methods:
Data on schistosomiasis and snail surveillance in Jiaxing City from 2001 to 2024 were collected through schistosomiasis control work reports and the Zhejiang Provincial Schistosomiasis (Parasitic Diseases) Control Information Management System. These data included serological testing results, stool etiological examination (stool examination) results, area surveyed for snails, snail-infested areas, number of snail-positive frames, and number of live snails. Indicators, including the positive rate of serological testing, the positive rate of stool examinations, the rate of snail-positive frames, and the density of live snails were analyzed. The Prophet time series model was employed to forecast the schistosomiasis epidemic in Jiaxing City from 2025 to 2029.
Results:
A total of 636 493 serological testing were conducted in Jiaxing City from 2001 to 2024, with a positive rate of 1.532%, showing a decreasing trend (P<0.05). Among 7 582 stool examinations, positive cases were all imported, resulting in a positivity rate of 0.066%. During the same period, snail surveys covered a cumulative area of 30 545.999 hm2, with snail-infested areas totaling 69.355 hm2; no significant trend was observed (P>0.05). All snail habitats were identified as recurrent foci within hydrographic network regions, primarily distributed across Xiuzhou District, Nanhu District, Pinghu City, Jiashan County, and Tongxiang City, with snail-infested areas of 39.588, 12.538, 10.728, 4.315, and 2.186 hm2, respectively. From 2009 to 2024, a total of 35 692 134 frames of snails were surveyed, of which 16 543 were snail-positive, yielding a snail-positive frame rate of 0.046%. A total of 33 175 live snails were collected, with a mean density of 0.000 98 snails per frame. No infected Oncomelania snails were detected. The projection results indicated that from 2025 to 2029, the positive rate of serological testing rate in Jiaxing City would range between 0.253% to 0.389%, the snail-infested areas would range from 0.025 to 1.818 hm2, and the density of live snails would vary from 0.001 56 to 0.001 66 snails per frame. None of these indicators showed a significant trend (all P>0.05).
Conclusions
From 2001 to 2024, the positive rate of serological testing rate of schistosomiasis in Jiaxing City showed a declining trend, with no new autochthonous cases or infected Oncomelania snails detected. However, imported cases were still reported. All identified snail habitats were recurrent foci within hydrographic network regions. It is recommended to enhance schistosomiasis and snail status surveillance in high-risk areas.
2.Marriage intention among HIV-infected men who have sex with men
CHEN Qi ; XUE Fei ; GUI Juanjuan ; LÜ ; Xin ; XIE Feng
Journal of Preventive Medicine 2024;36(5):397-401
Objective:
To investigate the marriage intention and its influencing factors among HIV-infected men who have sex with men (MSM), so as to provide the reference for formulating high-risk behavior intervention strategies and reducing the risk of HIV transmission among this population.
Methods:
Unmarried HIV-infected MSM were sampled from newly reported HIV/AIDS patients in Gongshu District of Hangzhou City from 2020 to 2022. Participants' sociodemographic information, family status and marriage intention were collected using questionnaire surveys. Factors affecting marriage intention were identified using a multivariable logistic regression model.
Results:
A total of 430 questionnaires were allocated and 400 valid questionnaires were recovered, with an effective recovery rate of 93.02%. The respondents had a mean age of (28.90±4.67) years, and included 271 cases with registered residence outside Hangzhou City (67.75%). There were 82 cases indicating that they would probably or definitely get married, accounting for 20.50%, including 46 cases (56.10%) aged 30 years and older, 67 cases (81.71%) engaged in commercial services/freelance work/worker and 53 cases (64.63%) being the only children. Multivariable logistic regression analysis showed that unmarried HIV-infected MSM who were aged 30 years and older (OR=2.751, 95%CI: 1.230-6.154), had a monthly income of <10 000 Yuan (5 000 to <10 000 Yuan, OR=7.010, 95%CI: 2.049-23.981; <5 000 Yuan, OR=5.229, 95%CI: 1.803-15.165), had a high school education and below (OR=5.935, 95%CI: 1.775-19.844), were the only children (OR=3.407, 95%CI: 1.468-7.910), came from families with economic conditions above the average level (OR=8.906, 95%CI: 2.070-38.308), did not disclose their sexual orientation (OR=3.298, 95%CI: 1.118-9.727), held a positive attitude towards government policies (OR=70.544, 95%CI: 14.583-341.237), had no homosexual intercourse in the past six months (OR=3.583, 95%CI: 1.278-10.044), and had not informed their sexual partners of their HIV status (OR=2.910, 95%CI: 1.228-6.897) were more willing to get married.
Conclusion
A certain proportion of unmarried HIV-infected MSM in Gongshu District are willing to get married, and their marriage intention is affected by age, educational level, family economic conditions, the only children or not, disclosing sexual orientation or not, having homosexual intercourse in the past six months or not, informing sexual partners of HIV status or not, and the attitude towards government policies.
3.Metabolic syndrome among employees in petrochemical enterprises
XI Xiaomei ; LÜ ; Yali ; LIU Yongbin ; QI Shengshun ; WU Jianjun ; WEI Xingmin
Journal of Preventive Medicine 2024;36(5):432-436
Objective:
To understand the prevalence and its influencing factors of metabolic syndrome (MS) among employees in petrochemical enterprises, so as to provide insights into the prevention and control of MS among employees in petrochemical enterprises.
Methods:
The employees in petrochemical enterprises who underwent health examinations at the Fourth Affiliated Hospital of Gansu University of Traditional Chinese Medicine from May 2021 to December 2022 were selected as the survey subjects. Demographic information, lifestyle behaviors and occupational exposure were collected using questionnaires, and the blood biochemical indicators were measured through laboratory testing. Factors affecting MS were identified using a multivariable logistic regression model.
Results:
A total of 2 479 individuals were included, with a mean age of (44.84±7.87) years. There were 1 684 males (67.93%) and 795 females (32.07%). There were 905 cases of MS, with a detection rate of 36.51%. Multivariable logistic regression analysis showed that gender (male, OR=2.246, 95%CI: 1.353-3.728), age (≥40 years, OR=3.523, 95%CI: 2.003-6.194), noise exposure (OR=1.894, 95%CI: 1.272-2.821), smoking index (>0~200 cigarette-years, OR=1.907, 95%CI: 1.155-3.149; >200 cigarette-years, OR=2.257, 95%CI: 1.320-3.859), hyperuricemia (OR=3.013, 95%CI: 1.852-4.900) and γ-glutamyltransferase (abnormal, OR=2.691, 95%CI: 1.589-4.559) were the influencing factors of MS among employees in petrochemical enterprises.
Conclusion
The risk of MS occurrence among employees in petrochemical enterprises is related to gender, age, noise exposure, smoking index, hyperuricemia and γ-glutamyltransferase level.
4.Rapid determination of four herbicides in urine with ultra-high performance liquid chromatography-triple quadrupole tandem mass spectrometry
Qi LI ; Huihui LIU ; Lü ; JI ; Junqing XU
Journal of Preventive Medicine 2023;35(2):176-179
Objective:
To establish a ultra-high performance liquid chromatography-tandem triple quadrupole mass spectrometry method for rapid simultaneous determination of quinclorac, acetochlor, butachlor and metolachlor in urine.
Methods:
Urine samples were diluted 10 times, prepared into the mixed standard solution, and subjected to gradient elution on the ACQUITY UPLC BEH C18 column (100 mm×2.1 mm, 1.7 μm) with 0.1% formic acid and acetonitrile as the mobile phase. The quinclorac, acetochlor, metolachlor and butachlor levels were determined using electrospray ionization-positive ultra-high performance liquid chromatography-tandem triple quadrupole mass spectrometry with the multiple reaction monitoring mode.
Results:
Four herbicides were effectively separated on the ACQUITY UPLC BEH C18 column (100 mm× 2.1 mm, 1.7 μm), and good linear relationships were observed for quinclorac, acetochlor and butachlor at 1 to 25 μg/L and for metolachlor at 0.2 to 25 μg/L, with all linear correlation coefficients of >0.999. The detection limts of quinclorac, acetochlor, butachlor and metolachlor were 0.10, 0.10, 0.20 and 0.01 μg/L, respectively. The recovery rates of quinclorac, acetochlor and butachlor were 107.42%, 93.94% and 90.27% from urine samples at a spiked level of 5 µg/L, with relative standard deviations of 4.82%, 3.84% and 6.76%, and the recovery rate of metolachlor was 89.51% at a spiked level of 0.5 µg/L, with a relative standard deviation of 8.98%.
Conclusion
The chromatography and mass spectrometry conditions are optimized in this ultra-high performance liquid chromatography-tandem mass spectrometry, which is effective for rapid simultaneous determination of quinclorac, acetochlor, metolachlor and butachlor in urine samples.
5.Role and mechanisms of CHI3L1 in coronary artery lesions in a mouse model of Kawasaki disease-like vasculitis.
Yue CAO ; Shuai GAO ; Gang LUO ; Shui-Yan ZHAO ; Ya-Qi TANG ; Zhan-Hui DU ; Si-Lin PAN
Chinese Journal of Contemporary Pediatrics 2023;25(12):1227-1233
OBJECTIVES:
To explore the role and potential mechanisms of chitinase-3-like protein 1 (CHI3L1) in coronary artery lesions in a mouse model of Kawasaki disease (KD)-like vasculitis.
METHODS:
Four-week-old male SPF-grade C57BL/6 mice were randomly divided into a control group and a model group, with 10 mice in each group. The model group mice were intraperitoneally injected with 0.5 mL of lactobacillus casei cell wall extract (LCWE) to establish a mouse model of KD-like vasculitis, while the control group mice were injected with an equal volume of normal saline. The general conditions of the mice were observed on the 3rd, 7th, and 14th day after injection. Changes in coronary artery tissue pathology were observed using hematoxylin-eosin staining. The level of CHI3L1 in mouse serum was measured by enzyme-linked immunosorbent assay. Immunofluorescence staining was used to detect the expression and localization of CHI3L1, von Willebrand factor (vWF), and α-smooth muscle actin (α-SMA) in coronary artery tissue. Western blot analysis was used to detect the expression of CHI3L1, vWF, vascular endothelial cadherin (VE cadherin), Caspase-3, B cell lymphoma-2 (Bcl-2), Bcl-2 associated X protein (Bax), nuclear factor κB (NF-κB), and phosphorylated NF-κB (p-NF-κB) in coronary artery tissue.
RESULTS:
The serum level of CHI3L1 in the model group was significantly higher than that in the control group (P<0.05). Compared to the control group, the expression of CHI3L1 in the coronary artery tissue was higher, while the expression of vWF was lower in the model group. The relative expression levels of CHI3L1, Bax, Caspase-3, NF-κB, and p-NF-κB were significantly higher in the model group than in the control group (P<0.05). The relative expression levels of vWF, VE cadherin, and Bcl-2 were lower in the model group than in the control group (P<0.05).
CONCLUSIONS
In the LCWE-induced mouse model of KD-like vasculitis, the expression levels of CHI3L1 in serum and coronary arteries increase, and it may play a role in coronary artery lesions through endothelial cell apoptosis mediated by inflammatory reactions.
Male
;
Animals
;
Mice
;
Mucocutaneous Lymph Node Syndrome/pathology*
;
Coronary Vessels/pathology*
;
NF-kappa B
;
Caspase 3/metabolism*
;
bcl-2-Associated X Protein/metabolism*
;
Chitinase-3-Like Protein 1
;
von Willebrand Factor/metabolism*
;
Mice, Inbred C57BL
;
Cadherins
6.Development of the Scientific, Transparent and Applicable Rankings (STAR) tool for clinical practice guidelines.
Nan YANG ; Hui LIU ; Wei ZHAO ; Yang PAN ; Xiangzheng LYU ; Xiuyuan HAO ; Xiaoqing LIU ; Wen'an QI ; Tong CHEN ; Xiaoqin WANG ; Boheng ZHANG ; Weishe ZHANG ; Qiu LI ; Dong XU ; Xinghua GAO ; Yinghui JIN ; Feng SUN ; Wenbo MENG ; Guobao LI ; Qijun WU ; Ze CHEN ; Xu WANG ; Janne ESTILL ; Susan L NORRIS ; Liang DU ; Yaolong CHEN ; Junmin WEI
Chinese Medical Journal 2023;136(12):1430-1438
BACKGROUND:
This study aimed to develop a comprehensive instrument for evaluating and ranking clinical practice guidelines, named Scientific, Transparent and Applicable Rankings tool (STAR), and test its reliability, validity, and usability.
METHODS:
This study set up a multidisciplinary working group including guideline methodologists, statisticians, journal editors, clinicians, and other experts. Scoping review, Delphi methods, and hierarchical analysis were used to develop the STAR tool. We evaluated the instrument's intrinsic and interrater reliability, content and criterion validity, and usability.
RESULTS:
STAR contained 39 items grouped into 11 domains. The mean intrinsic reliability of the domains, indicated by Cronbach's α coefficient, was 0.588 (95% confidence interval [CI]: 0.414, 0.762). Interrater reliability as assessed with Cohen's kappa coefficient was 0.774 (95% CI: 0.740, 0.807) for methodological evaluators and 0.618 (95% CI: 0.587, 0.648) for clinical evaluators. The overall content validity index was 0.905. Pearson's r correlation for criterion validity was 0.885 (95% CI: 0.804, 0.932). The mean usability score of the items was 4.6 and the median time spent to evaluate each guideline was 20 min.
CONCLUSION
The instrument performed well in terms of reliability, validity, and efficiency, and can be used for comprehensively evaluating and ranking guidelines.
Reproducibility of Results
;
Surveys and Questionnaires
;
Practice Guidelines as Topic
;
Humans
8.Plurihormonal PIT1-lineage pituitary neuroendocrine tumors: a clinicopathological study.
Z J DUAN ; J FENG ; H Q ZHAO ; H D WANG ; Q P GUI ; X F ZHANG ; Z MA ; Z J HU ; L XIANG ; X L QI
Chinese Journal of Pathology 2023;52(10):1017-1024
Objective: To investigate the clinicopathological characteristics of plurihormonal PIT1-lineage pituitary neuroendocrine tumors. Methods: Forty-eight plurihormonal PIT1-lineage tumors were collected between January 2018 and April 2022 from the pathological database of Sanbo Brain Hospital, Capital Medical University. The related clinical and imaging data were retrieved. H&E, immunohistochemical and special stains were performed. Results: Out of the 48 plurihormonal PIT1-lineage tumors included, 13 cases were mature PIT1-lineage tumors and 35 cases were immature PIT1-lineage tumors. There were some obvious clinicopathological differences between the two groups. Clinically, the mature plurihormonal PIT1-lineage tumor mostly had endocrine symptoms due to increased hormone production, while a small number of immature PIT1-lineage tumors had endocrine symptoms accompanied by low-level increased serum pituitary hormone; patients with the immature PIT1-lineage tumors were younger than the mature PIT1-lineage tumors; the immature PIT1-lineage tumors were larger in size and more likely invasive in imaging. Histopathologically, the mature PIT1-lineage tumors were composed of large eosinophilic cells with high proportion of growth hormone expression, while the immature PIT1-lineage tumors consisted of chromophobe cells with a relatively higher expression of prolactin; the mature PIT1-lineage tumors had consistently diffuse cytoplasmic positive staining for keratin, while the immature PIT1-lineage tumors had various expression for keratin; the immature PIT1-lineage tumors showed more mitotic figures and higher Ki-67 proliferation index; in addition, 25.0% (12/48) of PIT1-positive plurihormonal tumors showed abnormal positive staining for gonadotropin hormones. There was no significant difference in the progression-free survival between the two groups (P=0.648) by Kaplan-Meier analysis. Conclusions: Plurihormonal PIT1-lineage tumor belongs to a rare type of PIT1-lineage pituitary neuroendocrine tumors, most of which are of immature lineage. Clinically increased symptoms owing to pituitary hormone secretion, histopathologically increased number of eosinophilic tumor cells with high proportion of growth hormone expression, diffusely cytoplasmic keratin staining and low proliferative activity can help differentiate the mature plurihormonal PIT1-lineage tumors from the immature PIT1-lineage tumors. The immature PIT1-lineage tumors have more complicated clinicopathological characteristics.
Humans
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Neuroendocrine Tumors
;
Pituitary Neoplasms/pathology*
;
Pituitary Hormones
;
Growth Hormone/metabolism*
;
Keratins
9.Efficacy of polyetheretherketone rod hybrid surgery in preventing proximal junctional failure after adult spinal deformity surgery.
Y ZHAO ; B Y XU ; L T QI ; L YUE ; R L ZHU ; Z R YU ; X D YI ; C D LI
Chinese Journal of Surgery 2023;61(8):656-665
Objective: To investigate the clinical outcome and preventive effect of polyetheretherketone(PEEK) rod hybrid surgery on proximal junction failure(PJF) after long-segment fusion of adult spinal deformity. Methods: A retrospective study was conducted to analyze patients with degenerative scoliosis/kyphosis who underwent long-segment decompression and fusion surgery at Department of Orthopedics, Peking University First Hospital from January 2017 to December 2021. A total of 75 patients were included in the study, including 14 males and 61 females, aged (67.2±6.8)years (range:55 to 84 years). According to the operation method chosen by the patients, the patients were divided into PEEK rod hybrid group (20 cases) and traditional titanium rod group (55 cases). The general information of the patients was collected, and the coronal and sagittal parameters of the spine were measured before operation, at 1 month after operation, and at the last follow-up. The clinical effect of surgery was judged by the visual analogue scale (VAS) and Oswestry disability index (ODI). Whether proximal junctional kyphosis (PJK) and PJF occurred during the follow-up and the time of occurrence were recorded. Comparisons between groups were performed using independent sample t test, Mann-Whitney U test, χ2 test and Fisher's exact probability method. The data before and after surgery in the same group were compared using the paired sample t test and the Wilcoxon test. Results: There were no significant differences in age, gender, body mass index, bone mineral density, distal instrumented vertebrae, surgical segments, osteotomy method, operation time, and intraoperative bleeding between the two groups (all P>0.05). The follow-up time of the PEEK rod group was shorter(M(IQR)16.5(4.8) vs. 25.0(12.0),Z=-4.230,P<0.01). There were no significant differences in coronal, sagittal parameters, VAS and ODI between the two groups before operation (all P>0.05). Postoperative coronal Cobb angle, pelvic incidence, pelvic tilt, sacral slope, lumbar lordosis, thoracic kyphosis, sagittal vertical axis (SVA), VAS and ODI were significantly improved in both groups(all P<0.05). At the last follow-up, the SVA of the PEEK rod hybrid group was(3.74±2.40)cm, which was significantly lower than that of the titanium rod group (6.28±4.06)cm (t'=-3.318, P=0.002). At the last follow-up, the ODI of the PEEK rod hybrid group was 30.7±6.1, significantly better than the titanium rod group 39.3±17.2(t=-3.203, P=0.046). PJK occurred in 2 patients (10.0%) in the PEEK rod hybrid group, and no PJF phenomenon was observed. In the titanium rod group, 18 patients (32.7%) developed PJK, and 11 patients (20.0%) developed PJF. There was a statistically significant difference in the incidence of PJF between the PEEK rod hybrid group and the titanium rod group (P=0.031). Conclusions: PEEK rod hybrid surgery can achieve good clinical results in the treatment of adult spinal deformities. Compared with traditional titanium rod surgery, it can significantly reduce the incidence of postoperative PJF and improve the clinical function of patients.
Male
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Female
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Animals
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Humans
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Adult
;
Retrospective Studies
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Titanium
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Kyphosis/etiology*
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Sacrum
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Osteotomy/adverse effects*
;
Spinal Fusion/methods*
;
Lumbar Vertebrae
;
Treatment Outcome
;
Postoperative Complications/epidemiology*


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