老年肺结核患者甲状腺激素水平的临床研究

本文采用放射免疫法对33例老年肺结核患者血清TT_3、TT_4、rT_3、T_3Ru和TSH水平进行检测,并计算FT_4I及T_3/rT_3比值。结果表明,老年肺结核患者血清TT_3、TT_4和T_3/rT_3比值均较健康老年人降低(P<0.01),而rT_3、T_3Ru和TSH则升高(前两者P<0.01,后者P<0.05),FT_4无显著性差异(P>0.05)。提示老年肺结核患者血清甲状腺激素水平与病程和合并症有关。     

慢性乙型肝炎患者甲状腺功能的变化及临床意义

目的探讨慢性乙型肝炎(CHB)患者甲状腺功能的变化及临床意义。方法选取2016年1月至2019年12月我院收治的300例CHB作为研究组,另选取同期至我院健康体检者268例为对照组。比较两组T_3、T_4、TSH、FT_3和FT_4的差异。根据病情严重程度,将CHB患者分为轻度组126例,中度组102例,重度组72例,比较各组T_3、T_4、TSH、FT_3和FT_4的差异,分别分析T_3、T_4、TSH、FT_3、FT_4与血清白蛋白、总胆红素和凝血酶原时间(PT)的相关性。结果研究组T_3、T_4、FT_3和FT_4均明显低于对照组,且差异均有统计学意义(P0.05),而两组间TSH无明显差异。慢性乙型肝炎重度组T_3、T_4、FT_3和FT_4均低于轻度组和中度组,且差异均有统计学意义(P0.05)。在CHB患者中,T_3、T_4、FT_3和FT_4分别与血清白蛋白呈正相关,与总胆红素、PT呈负相关(P0.05),而TSH与血清白蛋白、总胆红素、PT均无明显相关性(P0.05)。结论 CHB患者T_3、T_4、FT_3和FT_4水平降低,并且与病情严重程度密切相关。     

老年开腹胃肠吻合术患者血清甲状腺激素水平变化研究

目的研究老年开腹胃肠吻合术患者血清甲状腺激素水平变化。方法选取2016年8月-2017年11月我院收治的80例老年开腹胃肠吻合术患者作为研究对象,对不同时期、有无并发症、不同手术时机患者血清甲状腺激素水平变化进行分析和评定。结果与术前相比,术后患者FT_3、FT_4、T_3、T_4、TSH水平均明显降低,差异具有统计学意义(P0.05);与择期手术患者相比,急诊手术患者的FT_3、FT_4、T_3、T_4、TSH水平明显降低,差异存在统计学意义(P0.05);与术后出现未并发症患者相比,术后出现并发症患者的FT_3、FT_4、T_3、T_4、TSH水明显降低,差异具有显著性(P0.05)。结论老年开腹胃肠吻合术不同手术时机、不同时期、有无并发症会直接影响血清甲状腺激素水平变化。     

慢性充血性心衰患者下丘脑-垂体-甲状腺轴的变化

目的:研究慢性充血性心衰患者甲状腺激素变化与下丘脑-垂体轴系统的关系。方法:应用放射免疫法测定28例慢性充血性心衰(CHF)患者及14例健康人血清甲状腺激素浓度(T_3、T_4、FT_3、FT_4、rT_3),促甲状腺激素(TSH)浓度和促甲状腺激素释放激素(TRH)浓度。结果:(1)CHF组:T_3、FT_3、FT_4较对照组显著下降(P<0.05～<0.01);(2)随心衰加重,T_3、FT_3浓度减少,rT_3浓度增加,在心衰各组间有显著性差异,而T_4、FT_4、TSH、TRH水平在心衰各组间无显著性差异。结论:在充血性心衰时,下丘脑-垂体-甲状腺轴系统调节失衡。T_3、rT_3的改变可作为判断CHF严重程度的指标。     

应激对老年危重患者下丘脑-垂体-甲状腺轴激素的影响

目的探讨应激对老年危重患者下丘脑-垂体-甲状腺轴激素的影响。方法采用病例对照方法,选取30例老年危重患者和30例匹配的正常健康对照者,采用放射免疫法分别检测危重病患者应激状态和恢复期以及对照者的甲状腺激素和促甲状腺刺激激素水平。结果危重患者应激状态下FT_3、TT_3、TT_4、TSH水平分别低于恢复期和对照组:2.00±0.96低于3.47±0.70(P<0.01)和3.56±0.89(P<0.01)、14.14±2.31低于15.37±1.27(P<0.01)和15.64±2.36(P<0.01)、0.95±0.30低于1.45±0.39(P<0.01)和1.72±0.48(P<0.01)、59.80±24.49低于69.16 24.72(P<0.01)和71.35 20.48(P<0.01)、0.54±0.39低于1.86±0.47(P<0.01)和1.88±0.54(P<0.01),尽管FF4水平低于恢复期和对照组,但未达到统计学差异。而危重患者恢复期FT3、FT_4、TT_3、TT_4、TSH水平与对照组无统计学差异。结论危重患者下丘脑-垂体-甲状腺轴激素变化水平可作为应激状态下病情判断的重要指标。     

冠心病患者亚临床甲状腺功能减退与血浆脂蛋白相关磷脂酶A2水平的相关性

目的研究冠心病患者亚临床甲状腺功能减退(SCH)与血浆脂蛋白相关磷脂酶A2(Lp-PLA2)水平的相关性。方法选择2017年1月至2018年12月于河南科技大学第一附属医院心内科住院行冠状动脉造影确诊为冠心病的717例患者。根据甲状腺功能将患者分为SCH组(110例)和甲状腺功能正常组(607例),将两组患者临床资料进行比较。根据Lp-PLA2水平四分位数分为4组,比较4组患者基本资料,将差异有统计学意义的变量进行相关性及多元线性回归分析,分析影响Lp-PLA2的危险因素。结果 SCH组女性患者比例高,促甲状腺激素(TSH)、Lp-PLA2、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)和载脂蛋白B(ApoB)水平明显升高(均为P<0.05),而游离三碘甲状腺激素(FT_3)、游离甲状腺激素(FT_4)和载脂蛋白A1(ApoA1)水平明显降低(均为P<0.05)。4组不同水平Lp-PLA2患者之间,高血压和SCH患者比例、TSH、FT_3、FT_4、LDL-C、ApoA1、ApoB水平明显不同;且随Lp-PLA2水平升高,高血压和SCH患者比例明显升高,TSH、LDL-C、ApoB水平明显升高,而FT_3、FT_4水平明显降低,差异均有统计学意义(均为P<0.05)。相关性分析显示,Lp-PLA2与高血压、SCH、TSH、LDL-C和ApoB呈显著正相关,与FT_3、FT_4呈显著负相关(均为P<0.05)。多元线性回归分析显示,FT_3、FT_4、LDL-C、SCH和高血压是影响Lp-PLA2的危险因素(均为P<0.05)。结论冠心病患者SCH与血浆Lp-PLA2表达水平明显相关,纠正SCH有可能降低Lp-PLA2水平,改善患者预后。     

糖尿病酮症酸中毒对甲状腺功能的影响研究

目的探讨DKA对甲状腺功能的影响。方法选取2005年11月至2013年12月于我院内分泌科住院的DKA患者75例(DKA组)及糖尿病酮症(DK)患者39例(DK组),检测血清游离三碘甲状腺原氨酸(FT_3)、血清游离甲状腺素(FT_4)、促甲状腺素(TSH)水平。结果 DKA组FT_3、FT_4低于DK组(P0.05),而两组TSH比较,差异无统计学意义。将DKA组分为轻、中、重度亚组,各亚组FT_3、FT_4、TSH比较,差异无统计学意义。多元线性逐步回归分析显示,血Na~+、HCO_3~-为FT_4水平下降的危险因素。甲状腺功能正常的病态综合征(ESS)患者中,随着DKA加重,低T_3/T_4综合征比例增加。结论 DKA患者FT_3、FT_4低于DK患者;随着DKA加重,ESS中低T_3/T_4综合征比例逐渐升高。DKA患者FT_4水平下降受HCO_3~-、Na~+影响。     

脑血管病患者甲状腺功能测定及其临床意义探讨

本文分析了52例脑血管疾病患者血清T_3、T_4及促甲状腺激素(TSH)值的变化,发现急性脑梗塞患者血清TSH值显著降低;脑梗塞后遗症及脑动脉硬化症患者血清T_3值显著降低,T_4值降低。作者认为,脑血管疾病时血清低T_3、T_4以及TSH分泌量的改变是下丘脑—腺垂体—甲状腺功能轴和外周组织功能变化的共同结果,可以反应疾病的严重程度。     

老年房颤患者的非典型性甲状腺功能失调

作者通过血清甲状腺激素测定和促甲状腺素释放激素兴奋试验(TRHtest),了解老年房颤(Af)患者中非典型性甲状腺功能失调的发病率。持续或阵发Af患者75人(男41,女34),年龄75.6±6.9岁。排除各种瓣膜性心脏病、典型甲亢、突眼症、甲状腺肿大、予激综合症,无甲状腺病史。健康对照组30例(男13,女17),年龄72.4±7.1岁。全部受试者无肾衰、抑郁、营养不良等疾患,停用影响甲状隙素及抑制TSH的药物(心得安、多巴胺等)至少一周。受试者休息30分钟后抽静脉血,然后静注250ug合成TRH,20分钟后再抽血一份,分离血清,用放免法测T_3、T_4、FT_4、TSH、T_3树脂吸附率并计算FT_3I、FT_4I。本研究中,诊断甲亢标准为T_3、T_4、FT_3T、FT_4I升高及/或TSH对TRH缺乏反应(静注250μgTRH20分钟后TSH升高值≤0.7μU/ml)。TSH对     

非甲状腺疾病中甲状腺功能测定的临床意义

本文170例非甲状腺疾病(简称NTI)血清T_3,rT_3,T_4,FT_4和TSH测定结果。T_3降低和疾病种类无明显关系,但与病情轻重有关。轻症可无T_3的变化,而重症或病情未缓解的,T_3明显下降。T_3、T_4均降低,与疾病的预后有关。     

Thyroid function in the nephrotic syndrome

Serum Total Thyroxine (T4), Triiodothyronine (T3), Free Thyroxine (FT4), Free Triiodothyronine (FT3) Reverse Triiodothyronine and T3 Resin Uptake (T3RU) as well as basal and post stimulating TSH were measured in twenty clinically euthyroid patients with the nephrotic syndrome. In comparison with control values, our patients showed (1) significantly lowered mean serum TBG levels (p less than 0,05) (2) unmodified mean serum T3, FT3 and rT3 values (3) significantly lowered mean serum T4 and FT4 levels (p less than 0,001 and p = 0,027 respectively) (4) significantly higher mean basal TSH, and increased TSH response to TRH. We found a significant correlation between proteinemia and T4 or FT4 (p less than 0,001; p less than 0,01 respectively). In summary, our study: Shows that the low Total T4 observed in the Nephrotic Syndrome is not only due to a decreased protein bound T4, but also to a decreased FT4; And brings evidence for mild hypothyroidism in nephrotic patients.     

老年人血管性痴呆与甲状腺轴功能关系的研究

目的　探讨老年人血管性痴呆（VD）与甲状腺轴功能的关系。　方法　采用放射免疫分析法检测31例VD患者、22例不伴有痴呆的脑血管病（CVD）患者及22例同龄对照的血清三碘甲状腺原氨酸（T     

Thyroid hormone concentrations, disease, physical function, and mortality in elderly men

CONTEXT: Physiological changes in thyroid hormone concentrations might be related to changes in the overall physical function in the elderly. OBJECTIVE: We determined to what extent thyroid hormone concentrations are related to physical function and mortality in elderly men. DESIGN: A longitudinal population study (the Zoetermeer study) was conducted. Mortality was registered in the subsequent 4 yr. PARTICIPANTS: Four hundred three independently and ambulatory living men (aged 73-94 yr) participated. MAIN OUTCOME MEASURES: The study examined the association between serum thyroid hormones and parameters of physical function as well as the association with mortality. METHODS: TSH, free T4 (FT4) total T4, T3, rT3, and T4-binding globulin were measured. Physical function was estimated by the number of problems in activities of daily living, a measure of physical performance score (PPS), leg extensor strength and grip strength, bone density, and body composition. RESULTS: Serum rT3 increased significantly with age and the presence of disease. Sixty-three men met the biochemical criteria for the low T3 syndrome (decreased serum T3 and increased serum rT3). This was associated with a lower PPS, independent of disease. Furthermore, higher serum FT4 (within the normal range of healthy adults) and rT3 (above the normal range of healthy adults) were related with a lower grip strength and PPS, independent of age and disease. Isolated low T3 was associated with a better PPS and a higher lean body mass. Low FT4 was related to a decreased risk of 4-yr mortality. CONCLUSIONS: In a population of independently living elderly men, higher FT4 and rT3 concentrations are associated with a lower physical function. High serum rT3 may result from a decreased peripheral metabolism of thyroid hormones due to the aging process itself and/or disease and may reflect a catabolic state. Low serum FT4 is associated with a better 4-yr survival; this may reflect an adaptive mechanism to prevent excessive catabolism.     

Altered serum levels of thyroxine, triiodothyronines and diiodothyronines in endogenous depression

Serum levels of thyroxine (T4), 3,3',5-triiodothyronine (T3), 3,3',5-triiodothyronine (rT3), 3,5-diiodothyronine (3,5-T2), 3,3'-diiodothyronine (3,3'-T2) and 3',5'-diiodothyronine (3',5'-T2) were studied in 80 patients with endogenous depression before and after electroconvulsive treatment (ECT). Compared to the values found after recovery, the patients when depressed had significant increased serum levels of T4, rT3, 3,3'-T2 and 3',5'-T2. Serum concentrations of T3 and 3,5-T2 were not significantly altered. Similarly the free T4 index (FT4I) was increased, while the free T3 index (FT3I) was unaffected. Previous studies have shown a reduced TSH response to TRH in patients with endogenous depression and that the long-term outcome after ECT is strongly related to changes in the TSH response. However, patients with increased TSH response to TRH (n = 23) had a pattern of serum iodothyronine concentrations similar to those (n = 57) with an unchanged TSH response. A similar pattern was also found in 7 patients with nonendogenous psychosis, in whom the TSH response to TRH was unchanged after recovery. It is concluded that the alterations of the TSH response to TRH found in endogenous depression cannot be explained by changes of FT4I or FT3I.     

Clinical study on thyroid hormone levels in tuberculous patients]

The article reported the results of serum total thyroxine (TT4), triiodothyronine (TT3), reverse triiodothyronine (rT3), triiodothyronine resin uptake ratio (T3RU) thyroid stimulating hormone (TSH), free thyroxine index (FT4I), and ratio of T3/rT3 in 103 tuberculous patients. The results showed the levels of serum TT4, TT3 and ratio T3/rT3 in tuberculous patients were lower than those of 50 healthy subjects (total P less than 0.01), rT3, T3RU and TSH were higher than those (total P less than 0.01). FT4I has no significant difference between the two groups (P greater than 0.05).     

重型病毒性肝炎血清甲状腺激素水平检测及临床意义

目的 探讨重型病毒性肝炎患者血清甲状腺激素水平与肝损害程度关系及临床意义.方法 应用放射免疫法测定54例重型病毒性肝炎、41例急性病毒性肝炎患者及30例正常人血清甲状腺激素水平.结果 重型病毒性肝炎T3、T4、TSH水平显著低于急性病毒性肝炎及正常人(P＜0.05);rT3则增高(P＜0.05).T3、T4与血浆Alb呈正相关,L、TSH与PT,rT3与ALT呈负相关.重型病毒性肝炎死亡者T3、T4、TSH显著低于存活者(P＜0.01).rT3则增高(P＜0.01).结论 重型病毒性肝炎患者甲状腺激素水平可作为反映肝功能的敏感指标,对判断疾病严重程度、预后有重大价值.     

Change in serum thyroid hormone levels in patients with acute myocardial infarction

It has been reported that there is a decrease in the serum concentration of thyroid hormones in non-thyroidal illness. In the present study we made serial measurements of serum concentration of thyroid hormones [triiodothyronine (T3), thyroxine (T4), free triiodothyronine (FT3), free thyroxine (FT4), reverse triiodothyronine (rT3)], thyroid stimulating hormone (TSH) and thyroxine binding globulin (TBG) in 10 patients with acute myocardial infarction (AMI, Grade I, according to the classification of Killip & Forrester) during 14 days after onset. In the early phase of AMI, serum T3, T4, FT3 and FT4 levels decreased while rT3 increased. TSH and TBG levels, however, were unchanged. In the patients with a high peak creatine phosphokinase activity (greater than or equal to 400 mU/ml), the decrease in thyroid hormone and increase in serum rT3 levels were greater than in patients with a low peak value (less than 400 mU/ml), suggesting a correlation between severity of AMI and changes in serum thyroid hormone levels. Especially, serum FT3 levels fell below the lower limit of controls within 14 days, with the lowest levels and the rT3 peak on the third day after onset. These data suggest that in AMI peripheral conversion of T4 favours rT3 production and that low levels of serum FT3 and T3 protect the infarcted heart muscle against thyroid hormone action.     

健康高龄老年人甲状腺激素水平变化趋势分析

目的 探讨80岁以上高龄老年人甲状腺激素水平变化趋势.方法 将602例健康志愿者按年龄分为中青年组(20～59岁)226例、老年组(60～79岁)195例和高龄组(80～102岁)181例,采用化学发光法及放射免疫法测定志愿者血清三碘甲状腺原氨酸(TT3)、甲状腺素(TT4)、游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、促甲状腺激素(TSH)、反T3(rT3)水平,并以SPSS 13.0进行统计分析.结果 老年组与中青年组比较,血清FT3和TT3降低,差异有统计学意义(t值分别为2.793和3.627,均为P＜0.01);高龄组与中青年组比较,TT3、TT4、FT3、TSH、rT3浓度差异有统计学意义(t值分别为10.930、6.065、15.398、-2.933、-5.643,均为P＜0.01);老年组与高龄组比较,TT3、TT4、FT3、TSH、rT3浓度差异有统计学意义(t值分别为8.382、4.298、11.573、-3.383、-5.148,均为P＜0.01).FT3、TT3、TT4浓度与年龄呈负相关(r值分别为-0.51、-0.39、-0.25,P＜0.01),rT3、TSH浓度与年龄呈正相关(r值分别为0.32、0.12,P＜0.01),FT4与年龄无相关.高龄组高于或低于临床正常参考值范围的阳性发生率,在TT3、TT4、FT3、FT4、TSH、rT3中分别为0、0、13.8%、0、6.6%、21%.结论 随着年龄增长,老年人血清甲状腺激素水平及促甲状腺激素均有改变,特别是80岁及以上高龄老年人,血清FT3、rT3、TSH变化更为明显,建议临床设立老年人不同年龄段的血清甲状腺激素正常参考值范围,以减少假阳性的发生率.

Abstract：

Objective To explore the variation tendency of serum thyroid hormone level in the elderly aged over 80 years.Methods The 602 healthy volunteers were divided into 3 groups by age:young group (20-59 years of age,n= 226),elderly group (60-79 years of age,n= 195),and advanced age group (80-102 years of age,n=181).Fasting blood of all persons was harvested,then the levels of serum total triiodothyroxine (TT3),total thyroxine (TT4),free tri-iodothyronine (FT3),free thyroxine (FT4),thyroid-stimulating hormone (TSH) and reverse tri-iodothyronine (rT3) were determined by chemistry luminescence technique and radioimmunoassay.Statistical analysis was made by the software SPSS 13.0.Results The levels of serum FT3 and TT3 were lower in elderly group than in young group (t=2.793,3.627,P=0.005,0.000).There were significant differences in the levels of serum TT3,TT4,FT3,TSH and rT3 between young group and advanced-age group (t =10.930,6.065,15.398,- 2.933,- 5.643,all P = 0.000),also between elderly group and advanced-age group (t= 8.382,4.298,11.573,-3.383,-5.148,all P＜0.001).The levels of serum FT3,TT3 and TT4 were negatively correlated with age (r=- 0.51,-0.39 and -0.25,respectively,all P＜0.01).And the levels of serum rT3 and TSH showed positive relationships with age (r=0.32,0.12,all P＜0.01).There were no relationships between the level of serum FT4 and age.The positive rate of serum TT3,TT4,FT3,FT4,TSH and rT3 concentration beyond the reference value was 0,0,13.8%,0,6.6% and 21% in advanced-age group,respectively.Conclusions The levels of serum thyroid hormone and thyroid-stimulating hormone change with age.The levels of FT3,rT3 and TSH change obviously in the elderly aged over 80 years.It could reduce the false positive rate in clinical practice if normal reference range for serum thyroid hormone levels in different aged elderly is established.     

Low serum triiodothyronine and high serum reverse triiodothyronine in old age: an effect of disease not age.

Serum concentrations of T4, T3, T3, free T4, free T3, and TSH were determined in four groups of adult subjects: group A, 27 healthy young volunteers (aged 18-29 yr); group B, 24 carefully selected healthy elderly subjects (aged 70-90 yr); group C, 41 subjects living at a municipal nursing home for the elderly (aged 70-90 yr); and group D, 35 hospitalized patients (aged 70-90 yr). Identical levels of iodothyronines in serum were found in the young and in the elderly healthy subjects. Moderate and severe disease induced alterations in iodothyronine concentrations in serum comparable to those reported earlier. Serum T3 and free T3 levels were low and serum rT3 levels were high in groups C and D subjects; serum free T4 was elevated in group D, while serum T4 was low. Serum TSH was lower in the healthy elderly subjects than in the young subjects. Serum TSH was higher in the elderly sick subjects (groups C and D) than in the healthy subjects (group B). We conclude that advanced age per se is not accompanied by alterations in free or total serum iodothyronine levels.     

Bexarotene-induced hypothyroidism: bexarotene stimulates the peripheral metabolism of thyroid hormones

OBJECTIVE: Therapy with the retinoid X receptor agonist bexarotene is associated with hypothyroidism caused by decreased pituitary TSH secretion. To evaluate the effects of bexarotene on peripheral thyroid hormone metabolism, we performed a study in athyreotic subjects on a fixed substitution dose with L-T4. DESIGN: The design was an open prospective 6-wk intervention study. METHODS: Ten athyreotic patients with pulmonary metastases of differentiated thyroid carcinoma received 6-wk redifferentiation treatment with 300 mg bexarotene/d. L-T4 doses were kept stable. Before and in the sixth week of therapy, serum levels of total T4, free T4 (FT4), T3, reverse T3 (rT3), and TSH were measured. To study nondeiodinase-mediated thyroid hormone degradation, serum levels of T4 sulfate (T4S) were measured. Recombinant human TSH was administered before and in the sixth week of bexarotene therapy. RESULTS: Bexarotene induced profound decreases in total T4 (56% of baseline), FT4 (47%), T3 (69%), rT3 (51%), and T4S (70%) in all patients, whereas TSH levels were not affected. The T3/rT3 ratio increased by 43%, and the T4S/FT4 ratio increased by 48%. Serum TSH levels before and after recombinant human TSH were unaffected by bexarotene. CONCLUSIONS: In the present study, we demonstrate that increased peripheral degradation of thyroid hormones by a nondeiodinase-mediated pathway contributes to bexarotene induced-hypothyroidism.