共查询到20条相似文献,搜索用时 171 毫秒
1.
2.
目的探讨电子垃圾拆解区居民血清中甲状腺激素和性激素水平的变化。方法于2005年8—12月在我国南方某有10余年历史的电子垃圾拆解区(暴露组)及距该地区约50km无明显工业污染的农业区(对照组)分别随机选取当地居民58名和80名。用免疫化学发光分析(immunochemiluminometric assay,ICMA)法检测两组居民血清甲状腺激素[包括游离三碘甲状腺原氨酸(free triiodothyronine,FT3)、游离四碘甲状腺原氨酸(free thyroxine,FT4)、促甲状腺激素(thyroidstimulating hormone,TSH)]和性激素[包括雌二醇(estradiol,E2)、孕酮(progesterone,Pro)、睾酮(testerone,T)]水平,并分析其影响因素。结果暴露组血清中FT4水平低于对照组(P<0.05);但TSH水平高于对照组(P<0.05)。男性居民中,暴露组血清中E2和T均低于对照组(P<0.05);在女性中,暴露组血清中Pro水平高于对照组(P<0.05)。电子垃圾拆解职业暴露史是TSH水平升高的危险因素(OR=3.88,P<0.01);性别(OR=0.39,P<0.05)和电子设备拥有情况(OR=0.33,P<0.05)是FT3水平降低的保护因素。结论电子垃圾处理环境暴露可能对当地居民血清中甲状腺激素和性激素水平有影响。 相似文献
3.
4.
目的了解福建沿海产盐区与非产盐区妊娠期妇女碘营养状况及其甲状腺功能水平,为防治碘缺乏病提供科学依据。方法选择产盐区翔安区和非产盐区集美区为调查点,每个点随机抽取60名以上妊娠期妇女作为调查对象,采集孕妇的家中盐样、尿样及血样,分别测定盐碘、尿碘及血清甲状腺激素。结果产盐区与非产盐区孕妇合格碘盐食用率分别为81.69%和100.00%;产盐区与非产盐区孕妇尿碘的中位数分别为120.55μg/L和153.35μg/L,尿碘〈150μg/L的比例分别为62.2%和46.8%,孕早期尿碘水平〉孕中期〉孕晚期;产盐区与非产盐区孕妇的甲状腺过氧化物酶抗体(thyroid peroxidase antibody,TPOAb),抗甲状腺球蛋白抗体(antithyroid glubulin antibody,TgAb),总三碘甲状腺原氨酸(total-triiodothyronine,TT3),总甲状腺素(total thyroxine,TT4),游离三碘甲状腺原氨酸(free triiodothyronine,FT3),游离甲状腺素(free thyroxine,FT4),促甲状腺激素(thyroid stimulating hormone,TSH),甲状腺球蛋白(tryroglobulin,Tg)中位数均在正常范围,产盐区与非产盐区孕妇的FT3、FT4、TSH之间差异均有统计学意义,产盐区孕妇的FT3、FT4均低于非产盐区,而产盐区孕妇的TSH则高于非产盐区。结论孕妇是易缺碘人群,产盐区孕妇相对非产盐区碘缺乏更为严重。应对孕妇开展常规碘营养和甲状腺功能监测,进一步做好碘营养知识的宣传教育工作,控制碘缺乏病的发生。 相似文献
5.
选择78例急性砷化氢中毒患者为观察组,80例不接触毒物的健康人为对照组,用磁分离均相酶联免疫法测定血清总三碘甲状腺原氨酸(TT3)、总甲状腺素(TT4)、游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、促甲状腺素(TSH)水平。观察组TT3、FT4降低,TSH升高,差异有统计学意义(P<0.05)。提示急性砷化氢中毒可抑制甲状腺功能。 更多还原 相似文献
6.
化妆品致汞中毒患者甲状腺功能观察 总被引:1,自引:0,他引:1
目的观察汞对甲状腺功能的影响。方法选择78例使用含汞超标化妆品致慢性轻度汞中毒女性患者为观察组,80例不接触汞的健康女性为对照组,用磁分离酶联免疫法测定两组血清总三碘甲状腺原氨酸(TT3)、总甲状腺素(TT4)、游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、促甲状腺素(TSH)水平。结果观察组TT3(1.90±0.56)nmol/L,TT4(102.02±25.62)nmol/L,FT3(3.88±1.00)pmol/L,FT4(13.41±3.76)pmol/L,TSH(3.07±4.77)×10-3U/L。提示观察组TT3、FT4降低,TSH升高,差异有统计学意义(P<0.05)。结论高浓度汞可抑制甲状腺功能。 相似文献
7.
《卫生研究》2019,(4)
目的 了解浙江省玉环市不同孕期孕妇碘营养、甲状腺功能状况及二者的关联。方法 纳入2016年2—4月期间在浙江省玉环市妇幼保健所建卡或进行常规产前检查的孕妇108例,其中妊娠早期40例,妊娠中期66例、妊娠晚期2例,检测其参加产检当天尿样中碘浓度及血清中促甲状腺激素(TSH)、总三碘甲状腺原氨酸(TT3)、总甲状腺素(TT4)、游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)水平。结果 孕妇尿碘中位数(P25,P75)为97.90(60,155)μg/L,碘缺乏、碘适量、碘超适量者分别占74.07%(80/108)、18.52%(20/108)、7.41%(8/108)。不同尿碘水平孕妇的血清TSH、TT3、TT4、FT3、FT4差异无统计学意义(P>0.05);妊娠早期孕妇的血清TSH、TT3、TT4高于妊娠中晚期孕妇,而FT4低于后者(P<0.05),不同孕期孕妇的血清FT3差异无统计学意义(P>0.05)。孕妇血清TSH、TT3、TT4、FT3、FT4指标异常率分别为5.56%(6/108)、18.52%(20/108)、17.59%(19/108)、0.93%(1/108)、1.85%(2/108),一项及以上甲状腺功能指标异常的孕妇比例为33.33%(36/108)。结论 浙江省玉环市孕妇尿碘中位水平较低,在妊娠各期均易出现不同程度的碘缺乏,更有甚者出现严重碘缺乏;同时,该地区孕妇也存在甲状腺激素异常状况。 相似文献
8.
目的探讨长期摄入过量氟对大鼠甲状腺形态和功能的影响。方法将120只Wistar大鼠随机分为对照组(自来水,氟离子浓度0.344 mg/L)、低氟组(5 mg/L)、中氟组(10 mg/L)和高氟组(20 mg/L)4组。分别在饮水染毒第2、4、8个月末每组处死雌雄大鼠各5只。称取甲状腺重量,在光镜下观察甲状腺组织形态,用放射免疫法检测血清中促甲状腺激素(TSH)、总四碘甲腺原氨酸(TT4)、游离四碘甲腺原氨酸(FT4)、总三碘甲腺原氨酸(TT3)和游离三碘甲腺原氨酸(FT3)的水平,比较各组间指标差异。结果与对照组比较,染毒4、8个月末,高氟组大鼠TSH明显降低(P小于0.05);氟染毒各组TT4和FT4水平在染毒2个月末均明显增加(P小于0.05),之后呈降低趋势;在染毒过程中TT3和FT3水平无明显变化(P大于0.05)。在染毒2个月末,染毒组大鼠甲状腺即出现增生小滤泡,胶质减少,少数滤泡变大,滤泡上皮细胞扁平;随着染毒时间的延长,滤泡增生更加活跃,滤泡腔变小,部分甲状腺还可见融合巨滤泡。结论长期摄入过量氟可导致甲状腺形态和功能异常,且暴露时间可能是重要的影响因素。 相似文献
9.
目的 探讨慢性粒细胞白血病患者化疗前后血清甲状腺激素水平的变化及意义.方法 检测32例慢性粒细胞白血病患者化疗前(化疗前组)、28例化疗后达完全缓解(CR)者(化疗后CR组)和26例健康体检者(对照组)血清甲状腺激素水平.结果 化疗前组血清总三碘甲状腺原氨酸(TT3)、游离三碘甲状腺原氨酸(FT3)水平显著低于对照组,两组比较差异有统计学意义(P<0.05),而血清总甲状腺素(TT4)、游离甲状腺素(FT4)、促甲状腺素(TSH)水平比较差异无统计学意义(P>0.05);化疗后CR组血清TT3、FT3水平较化疗前组明显上升,两组比较差异有统计学意义(P<0.05),而血清TT4、FT4、TSH水平比较差异无统计学意义(P>0.05);化疗后CR组血清TT3、TT4、FT3、FT4、TSH水平与对照组比较,差异无统计学意义(P>0.05).结论 慢性粒细胞白血病患者存在正常甲状腺功能病态综合征中的低三碘甲状腺原氨酸综合征,动态监测慢性粒细胞白血病患者的血清甲状腺激素水平,可作为观察疗效及估计预后的一项指标. 相似文献
10.
目的 探讨电焊作业产生的金属烟尘与职业人群甲状腺功能的关系,为电焊工人甲状腺疾病的早期防控提供依据。方法 采用整群抽样方法,于2022年4月选取某车辆制造企业参加职业健康检查的484名工人(CO2保护焊工人223人,辅助作业工人261人)分析电焊作业相关金属对甲状腺功能的影响。作业场所空气中和作业工人尿液中的金属浓度分别采用电感耦合等离子体发射光谱法和电感耦合等离子体质谱法进行检测。采用全自动化学发光测定仪检测甲状腺功能指标:三碘甲状腺原氨酸(Total triiodothyronine, TT3)、甲状腺素(Total thyroxine, TT4)、游离甲状腺素(Free thyroxine, T4)、游离三碘甲状腺原氨酸(Free triiodothyronine, FT3)和促甲状腺激素(Thyroid stimulating hormone, TSH)。金属与甲状腺功能的关联性采用广义线性回归分析,其中自变量尿金属采用肌酐进行校正。结果 电焊作业空气中存在的主要金属为铬、铜、铁、锰、镍和碲,其中位浓度分别为10.19μg/m3,40... 相似文献
11.
目的 探究低剂量辐射与甲状腺激素水平的剂量-反应关系,为放射工作人员防护工作重点提供理论依据。方法 采用前瞻性队列研究设计,收集1237 名放射工作人员健康体检报告及个人剂量监测数据。以辐射累积有效剂量作为观察指标并按照四分位间距分0~2.586 mSv、2.586~3.757 mSv、3.758~31.272 mSv 3组,低剂量组为参照,比较不同累积辐射剂量组放射工作人员甲状腺激素变化情况。采用广义线性模型和限制性立方样条模型分别估计累积有效剂量与甲状腺激素变化的关联及剂量反应关系。结果 1237 名放射工作人员的甲状腺素T4、FT3水平变化在不同剂量组间的差异有统计学意义(P < 0.05)。调整性别、年龄、工龄、职业、医疗等级和吸烟后,广义线性模型分析显示,2.586~3.757 mSv (β = 3.514, 95%CI: 0.900~6.128)与放射工作人员T4水平变化显著相关,而累积有效剂量与FT3水平变化无关(P > 0.05)。限制性立方样条分析结果显示,累积有效剂量连续变化与T4水平变化呈非线性剂量反应关系(P = 0.023)。结论 长期低剂量电离辐射对放射工作人员甲状腺功能造成一定的损伤,辐射累积有效剂量与T4水平变化存在剂量-反应关系。 相似文献
12.
目的 探究血清尿酸(serum uric acid,SUA)在脂肪摄入水平与肾功能损伤关系中的中介效应.方法 对来自2009年中国健康与营养调查(China Health and Nutrition Survey,CHNS)的8187名具有完整血液检测信息的成人进行分析.肾功能损伤定义为肾小球滤过率(esti-mate... 相似文献
13.
14.
15.
16.
Thyroid health status of ammonium perchlorate workers: a cross-sectional occupational health study 总被引:5,自引:0,他引:5
Lamm SH Braverman LE Li FX Richman K Pino S Howearth G 《Journal of occupational and environmental medicine / American College of Occupational and Environmental Medicine》1999,41(4):248-260
Since pharmaceutical exposures to perchlorate are known to suppress thyroid function in patients with hyperthyroidism, a study of employees at a perchlorate manufacturing plant was conducted to assess whether occupational exposure to perchlorate suppresses thyroid function. Exposure to perchlorate was assessed by measurement of ambient air concentrations of total and respirable perchlorate particles, and systemic absorption was assessed by measurement of urinary perchlorate excretion. Airborne exposures ranged from 0.004 to 167 mg total particulate perchlorate per day. Urinary perchlorate measurements demonstrated that exposure to the airborne particulate perchlorate resulted in systemic absorption. Workers were grouped into four exposure categories with mean absorbed perchlorate dosages of 1, 4, 11 and 34 mg perchlorate per day. Thyroid function was assessed by measurement of serum thyroid-stimulating hormone, free thyroxine index, thyroxine, triiodothyronine, thyroid hormone binding ratio, thyroid peroxidase antibodies, and by clinical examination. No differences in thyroid-function parameters were found between the four groups of workers across approximately three orders of magnitude of exposure and of dose. Thus human thyroid function was not affected by these levels of absorbed perchlorate. In addition, no clinical evidence of thyroid abnormalities was found in any exposure group. The blood-cell counts were normal in all groups, indicating no evidence of hematotoxicity in this exposure range. The absence of evidence of an effect on thyroid function or blood cells from occupational airborne perchlorate exposure at a mean absorption of 34 mg/day demonstrates a no-observed-adverse-effect-level (NOAEL) that can assist in the evaluation of human health risks from environmental perchlorate contamination. 相似文献
17.
M Tuppurainen G W?gar K Kurppa W Sakari A Wambugu B Fr?seth J Alho E Nykyri 《Scandinavian journal of work, environment & health》1988,14(3):175-180
Thyroid function was studied in 176 male workers occupationally exposed to lead. The mean blood lead concentration of the workers was 2.70 (SD 1.15, range 0.70-6.45) mumol/l. The mean duration of lead exposure was 7.6 (range 0.1-20) years. The total thyroxine (T4), free thyroxine (FT4), total triiodothyronine (T3), and thyrotropin concentrations in serum were similar in the workers in the low and high blood lead categories. In regression equations the duration of lead exposure had a weak but significant negative association with T4 and FT4, and this association was particularly pronounced when the analyses were restricted to workers with the most intense lead exposure over time. Thus, the results suggest that thyroid function might be depressed as a result of intense long-term lead exposure. 相似文献
18.
Dundar B Oktem F Arslan MK Delibas N Baykal B Arslan C Gultepe M Ilhan IE 《Environmental research》2006,101(1):140-145
This study investigated blood lead (Pb-B) levels and Pb-B effects on thyroid functions in long-term low-level-lead-exposed male adolescents who work as auto repairers. Pb-B and ALAD index (logarithm of activated delta-aminolaevulinic acid dehydratase/nonactivated delta-aminolaevulinic acid dehydratase) were measured as indicators of exposure to lead. Thyroid function tests including free thyroxine (FT4), free triiodothyronine (FT3), and thyrotrophin (TSH) were conducted and thyroid ultrasounds were performed in 42 lead-exposed adolescents and 55 healthy control subjects. Mean Pb-B levels and ALAD index were found significantly higher in the study group than in the normal control group (7.3+/-2.92 microg/dl vs. 2.08+/-1.24 microg/dl, P < 0.001 and 0.44+/-0.26 vs. 0.29+/-0.23, P < 0.05, respectively). FT4 levels were found significantly lower in the study group (1.02+/-0.18 mI/mL and 1.12+/-0.14 mIU/mL, P < 0.05). No subject in the control group had an abnormal FT4 level, but FT4 levels were found under normal limits in 11 subjects (26%) in the study group. FT3 and TSH levels in the study and control groups did not differ (P > 0.05). Thyroid volumes in the study and control groups did not exhibit any significant differences (P > 0.05). Pb-B was found to be negatively correlated to FT4 levels (r = -0.20, P = 0.044). This study revealed that long-term low-level lead exposure may lead to reduced FT4 level without significant changes in TSH and T3 levels in adolescents even at low Pb-B levels. 相似文献
19.
Ram B. Jain 《International journal of environmental health research》2016,26(4):405-419
The objective of this study was to evaluate the association between thyroid function and exposure to selected polycyclic aromatic hydrocarbons (PAH) among those aged ≥ 20 years. Thyroid variables considered for evaluation were thyroid-stimulating hormone, free and total serum thyroxine (FT4, TT4), free and total triiodothyronine (FT3, TT3), and thyroglobulin. PAH metabolites in urine for which data were analyzed were 1-hydroxynaphthalene, 2-hydroxynaphthalene, 2-hydroxyfluorene, 3-hydroxyfluorene, 9-hydroxyfluorene, 1-hydroxyphenanthrene, 2-hydroxyphenanthrene, 3-hydroxyphenanthrene, and 1-hydroxypyrene. Using data from 2007 to 2008 National Health and Nutrition Examination Survey, regression models with logs of thyroid variables as dependent variables and PAH exposure, age, race/ethnicity, iodine sufficiency, smoking status, and others as independent variables were fitted. For females, increased levels of 2-hydroxynapthalene, 2-hydroxyphenanthrene, and 1-hydroxypyrene were associated with elevated levels of TT3. For males, increased levels of 1-hydroxyphenanthrene, 2-hydroxyphenanthrene, and 9-hydroxypyrene were associated with decreased levels of FT4. 相似文献
20.