喉癌与微量元素

喉癌与微量元素关系的研究,文献报道不多。本文自1987年开始对血清Zn、Cu、Fe、Se,进行了检测,企图探索与喉癌的关未,从检测结果可以看出喉癌的发生与血清Zn、Cu、Fe、Se的含量有一定关系,可能直接参与了喉癌的发生和发展。     

急性白血病患者血清微量元素谱分析

采用ＤＣＰ－ＡＥＳ检测了４０例急性白血病（初发１８例，化疗后２２例）血清中锌、铜、铁、硒、镍、钛等１５种元素含量。结果显示：初发急性白血病患者血清锌、铁、硒、镍、钛均降低，铜、钙、镁、铜／锌比值均升高。化疗达ＣＲ后，血清锌、铜、铜／锌、硒均可正常，而化疗后ＮＲ组上述元素无改变。血清钙、镍、钛化疗后ＣＲ和ＮＲ组均无改善。表明微量元素与急性白血病转归相关。     

Trace elemental analysis of normal, benign hypertrophic and cancerous tissues of the prostate gland using the particle-induced X-ray emission technique.

Trace elemental analysis was carried out in the tissue samples of normal, benign hypertrophic and carcinoma prostate using the particle-induced X-ray emission technique. A proton beam of 3 MeV energy was used to excite the samples. The elements Cl, K, Ca, Ti, Cr, Mn, Fe, Ni, Cu, Zn, Se, and Br were identified and their concentrations were estimated. It is observed that in benign tissues the concentrations of Cl, K, Zn, and Se are lower (P<0.05) and those of Cr, Fe, Ni, and Cu are higher (P<0.05 ) than in normal tissues. The concentrations of K, Ca, Zn, Se, and Br are lower (P<0.01) and those of Ti, Cr, Mn, Fe, Ni, and Cu are significantly higher (P<0.0005) in cancerous tissues than in normal tissues. Free radicals generated by elevated levels of Cr, Fe, Ni, and Cu possibly initiate and promote prostate cancer by oxidative DNA damage. The excess Cu levels in cancerous tissues support the fact that Cu promotes cancer through angiogenesis. The higher levels of Fe observed in cancerous tissues might be a consequence of tumor growth through angiogenesis. Significantly higher levels of Ni and Cr observed in carcinoma tissues support the well-established role of Ni and Cr as carcinogens. It is likely that the observed low levels of Zn and Se in cancerous tissues lead to the development of prostate cancer owing to a decrease in antioxidative defense capacity and impaired immune function of cells and also suggest that the inability to retain high levels of Zn and Se may possibly be an important factor in the development and progression of malignant prostate cells. In order to substantiate the observed elevated or deficient levels of trace elements in initiating, promoting, and inhibiting prostate cancer, several cellular and molecular studies are required.     

消化道良,恶性疾病的12种微量元素的测定与临床意义

本文测定174例胃肠道疾病,40例原发性肝癌及85例正常人血清Cu、Zn、Ca、Mg、Fe、Sr、Mn、Mo、Cr、Ti、Ni、Se等12种微量元素。结果表明:血清铜升高、锌降低,Cu/Zn比值升高最明显为原发性肝癌,其次为胃肠癌,再次为胃肠息肉,最后为慢性腹泻。慢性腹泻与正常比仅锌下降,钙与锌在各组改变与锌相似。胃肠癌转移组与正常组比,术前组、术后组与正常组之间其Cu/Zn比值升高,且均有统计学意义(P<0.05)。胃肠癌组与息肉组比较,血清钙显著降低(P<0.001),铁无差异;而胃肠癌组与慢性腹泻组比,血清铁降低显著而钙无差异。胃肠癌中65例腺癌病理分化与微量元素无明显关系。由此表明微量元素改变对鉴别消化道良、恶性疾病和临床观察有一定帮助。     

回族血清中微量元素含量与胃癌的相关性研究

目的探讨回族血清中微量元素含量与胃癌的关系。方法采用原子吸收分光光度法对回族胃癌患者和回族非胃癌对照人群血清中锌(Zn)、铜(Cu)、铁(Fe)、镁(Mg)、钙(Ca)、锰(Mn)、镍(Ni)元素含量进行检测,并用SPSS统计软件对实验结果进行配对t检验分析。结果回族胃癌病例组血清中Cu、Cu/Zn、Mn均比对照组高,而Zn、Fe、Ca、Mg、Ni的含量低于对照组。配对t检验结果显示,血清中Cu、Zn、Cu/Zn、Ca、Mg含量差异有统计学意义(P<0.05)。结论回族胃癌的发生、发展与血清内微量元素变化密切相关。高Cu、Cu/Zn比值高以及低Zn、低Ca、低Mg是回族胃癌发生的危险因素。     

泌尿系肿瘤与肾炎患者血清和尿中铜锌锰镁含量变化的探讨

作者对２４例泌尿系恶性肿瘤病人、４５例肾炎病人的血清、尿液微量元素铜、锌、锰、镁进行了测定，结果显示：较之正常对照组，肾炎病人血清镁、尿、锌值明显升高，血清锌降低；恶性肿瘤病人血清铜、尿锌值明显升高，血清锌、尿锰值下降。这些指标对泌尿系恶性肿瘤的鉴别诊断及治疗有一定参考价值。     

微量元素与恶性淋巴瘤关系的研究

 目的　探讨微量元素与恶性淋巴瘤发生、发展的关系。方法　采用原子吸收分光光度计对370例恶性淋巴瘤患者,100例健康成人进行血清微量元素的测定及分析。结果　恶性淋巴瘤患者组血清铜、铜/锌比值、锰含量高于对照组,而锌、铁、钙含量均低于对照组,差异显著(P<0.05～P<0.001)。结果还表明,不同类型何杰金氏病(HD)患者之间的被测元素变化较大,淋巴细胞消减型(LD)组血清铜和铜/锌比值高于混合细胞型(MC)和淋巴细胞为主型(LP),而锌低于混合细胞型(MC),差异显著(P<0.05～P<0.001)。非何杰金氏病患者中,Ⅲ、Ⅳ期组血清铜含量和铜/锌比值高于Ⅰ、Ⅱ期患者组,差异显著(P<0.001)。结论　血清中铜、锌、锰、钙及铜/锌的测定对恶性淋巴瘤患者的病因调查、临床诊断、型态鉴别及其疗效观察可提供重要的依据。本研究资料的Logistic回归的多因素分析表明,铁元素和铜/锌比值相对危险度(OR)分别为0.4634和10.9919,偏回归系数(β)为-0.7691和2.3972,95%可信限(CI)分别为(-1.3432～-0.1949)和(1.6020～3.1923),提示,铁可能是恶性淋巴瘤的保护因素,而铜/锌比值可能是危险因素。     

Urinary levels of urokinase-type plasminogen activator and its receptor in the detection of bladder carcinoma

BACKGROUND: The authors found previously that plasma levels of urokinase-type plasminogen activator (uPA) and its receptor (uPAR) were elevated in patients with bladder carcinoma and were associated with features of biologically aggressive disease. In the current study, they tested the hypothesis that elevated urinary levels of uPA and uPAR would predict the presence of bladder malignancy by comparing the performance of uPA and uPAR with the performance of bladder wash-out cytology in the noninvasive diagnosis of bladder tumors. METHODS: An enzyme-linked immunosorbent assay was used to compare levels of uPA and uPAR in urine that was collected before cystoscopy from 122 patients with bladder carcinoma and from 107 participants in a control group. Seventy-two patients had clinical Tis or Ta transitional cell carcinoma, and 50 patients had invasive disease (>or= T1); 85 patients had clinical Grade 1-2 tumors, and 37 patients had Grade 3 tumors. For cytology, only high grade was considered positive. RESULTS: Urinary levels of uPA and uPAR were higher in patients with bladder carcinoma compared with levels in the control group (P < 0.001 and P = 0.016, respectively). However, only uPA levels were elevated in patients with abnormal urinary cytology (P = 0.006). After controlling for cytology (odds ratio [OR], 10.182; 95% confidence interval [95%CI], 4.451-23.291; P < 0.001), uPAR (P for trend = 0.168), and age (P = 0.091), those in the highest quartile for uPA had an increased risk of bladder carcinoma compared with those in the lowest quartile (OR, 3.022; 95%CI, 1.295-7.054; P for trend = 0.031). CONCLUSIONS: The current findings suggest that urinary levels of uPA, but not uPAR, are related to the risk of bladder carcinoma. The study confirmed the central role of urinary cytology in the noninvasive diagnosis of bladder carcinoma.     

骨陛关节炎滑膜组织中16种元素的分析

目的骨性关节炎（osteoarthritis,OA）是一种退行性骨关节病,该病病因和发病机制尚不明确。微量元素能通过参与人体内的新陈代谢、各种生物和化学反应等,维持机体正常生理活动,如果体内各种微量元素含量失调,就有可能引发多种疾病。本研究通过测定骨性关节炎滑膜组织中B、Mg、A1、K、Ca、n、Cr、Mn、Fe、Ni、Cu、Zn、Se、Sr、Ba、Pb等16种元素含量,探讨OA患者滑膜组织中这些元素的水平和疾病发生、发展的关系,为OA的机制研究和诊治提供相关的理论依据。方法选择骨性关节炎患者为实验组,单纯外伤引起的半月板损伤患者为对照组。术中采集患者滑膜组织样本,经微波消解处理,用电感耦合等离子体质谱（ICP—MS）测定组织中16种元素含量,数据经SAS9．0软件统计分析。结果实验组滑膜组织中硒（se）、铁（Fe）、锌（Zn）、铜（Cu）、硼（B）、钙（Ca）和钾（K）7种元素含量与对照组比较,差异均有统计学意义（P〈0．05）,其中实验组滑膜组织中Fe、B、Se元素含量低于对照组,而Ca、K、Cu、Zn元素的含量高于对照组;锰（Mn）、铬（Cr）、锶（Sr）、镍（Ni）、钡（Ba）、铝（A1）、铅（Pb）、锑（Sb）、镁（Mg）元素含量没有明显变化。结论骨性关节炎患者滑膜中硒、铁、锌、铜、硼、钙和钾7种元素含量变化明显,这些元素都是机体的必需元素,它们可能通过影响蛋白质、酶的代谢导致骨性关节病的发生。     

Serum and tissue trace metal levels in lung cancer

Copper, zinc, magnesium, calcium and iron were measured in serum and lung tissue - tumor mass and histologically nonneoplastic tissue - from lung cancer patients and compared with serum concentrations in healthy subjects and control lung tissue obtained from patients with nonmalignant lung disease. Lung cancer patients showed a significant increase in serum Cu and Cu/Zn ratio levels and decrease in serum Zn and Fe concentrations. These findings were correlated with TNM stage of the disease, but not with histologic type of tumor. Malignant lung tissue showed a higher level of Cu, Ca, Mg, and Cu/Zn ratio and lower Zn level than that found in control samples, as well as an increase in Cu, Mg and Cu/Zn ratio concentrations with regard to histologically nonneoplastic tissue samples from the same patient. Tissue concentration of trace metals was not significantly influenced either by histologic type of tumor or clinical TNM stage. Significant correlation coefficients between serum and tissue trace metal levels were not found.     

急性白血病与血液中微量元素相关性的研究

目的 观察急性白血病患者急性期及缓解期血液中微量元素的动态变化以及铁和锌与化疗合用的效果。方法 应用高频等离子体反射光谱仪,对110例急性白血病患者和100例健康儿童血液中14种微量元素进行分析,并比较化疗加锌和铁治疗组及单纯化疗组的疗效。结果 急性期白血病患者血、铁、钙和锰水平低于正常儿童,而铜和镍水平明显高,尤以铜／锌比值增大显著,在疾病缓解期则下降接近正常水平;化疗加锌和铁治疗组病情开始缓解及完全缓解所需时间较单纯化疗组明显缩短。结论 白血病急性期血液中微量元素有明显变化,且化疗时加用铁和锌有促进疗效的作用。     

食管粘膜内微量元素含量与p53、PCNA表达的关系

背景与目的:食管癌高发区食管癌患者的头发、血清内Zn、Cu等微量元素有异常改变,但在不同病变食管粘膜内的含量有无变化、与p53和增殖细胞核抗原(proliferatingcellnuclearantigen,PCNA)的表达有何关系尚不清楚,本文就食管粘膜内微量元素含量、p53突变及PCNA表达与食管病变的关系作一探讨。方法:151例食管活检标本分为正常、慢性炎、非典型增生与早期癌四种类型,以X-射线能谱仪进行微量元素定量检测,以S-P免疫组化法检测PCNA表达及p53突变状态。结果:正常上皮、慢性炎、非典型增生及早期癌中Zn、Se、Mo的含量分别为1.74±0.32、1.53±0.64、0.58±0.21、0.20±0.08;0.15±0.06、0.10±0.03、0.04±0.02、0;4.73±1.31、3.45±1.19、3.51±1.32、2.51±1.04,不同组织学类型间差异显著(P<0.05)。Cu/Zn、Ni含量分别为0.57±0.17、0.89±0.18、2.45±0.48、2.92±1.08;0.45±0.05、1.27±0.11、2.46±0.24、2.58±0.33,随着食管病变程度的升级含量渐增,差异显著(P<0.05)。p53、PCNA阳性表达在正常上皮与非典型增生及早期癌组内分别为0、46.15%、100%;31.19%、84.62%、100%,差异显著(P<0.01),且与微量元素含量显著相关。结论:Zn、Se、Mo、Cu、Ni含量变化可能对食管癌高发区人食管上皮p53突变与PCNA过表达具有     

Copper, zinc, and Cu/Zn ratio in carcinoma of the gallbladder

INTRODUCTION: The exact role of copper and zinc in the etiology of carcinoma of the gallbladder is unclear. Some studies suggest the Cu/Zn ratio is a good indicator of the extent and prognosis in carcinoma of the gastrointestinal tract. The aim of the present study is to estimate the micronutrient profile and Cu/Zn ratio in the serum, tissues, and bile of patients with benign and malignant gallbladder diseases. METHODS: The present study was carried out in 60 patients comprising 30 each of carcinoma of the gallbladder and cholelithiasis, and 30 age and sex matched controls. Copper and zinc levels were estimated in blood, bile, and tissue using a Perkin Elmer Model 2380 Atomic absorption Spectrophotometer. RESULTS: The mean serum zinc levels were significantly lower in patients with carcinoma of the gallbladder than in patients with cholelithiasis and in healthy controls (P < 0.001). The mean serum copper levels were significantly higher in patients with carcinoma of the gallbladder as compared to patients with cholelithiasis and healthy controls (P < 0.001). Biliary and tissue zinc levels were significantly lower in patients with carcinoma of the gallbladder than in patients with cholelithiasis. Biliary and tissue copper levels were higher in patients with carcinoma of the gallbladder than in patients with cholelithiasis. The serum Cu/Zn ratio showed a gradual and significant increase from 1.11 in healthy controls to 1.35 in patients with cholelithiasis and 2.12 in patients with carcinoma of the gallbladder. The biliary and tissue Cu/Zn ratios were also significantly increased in patients with carcinoma of the gallbladder than in patients with cholelithiasis (P < 0.001). CONCLUSIONS: Our data support an association between lower zinc levels and consequently an increased Cu/Zn ratio and carcinoma of the gallbladder. Whether zinc supplementation has a protective effect in preventing carcinoma of the gallbladder needs to be studied further.     

急性白血病患者全血中微量元素研究

 目的 观察急性白血病患者血液中微量元素的动态变化。方法 用原子吸收光谱法测定50例急性白血病患者和40例正常人全血中铜（Cu）、锌（Zn）、锰（Mn）、铁（Fe）、钙（Ca）、镁（Mg）的含量,同时对20例患者缓解前后进行了动态观察。结果 急性白血病初发组及复发组全血Cu、Ca的含量、Cu／Zn比值显著高于正常组及缓解组,全血Zn,Fe,Mg的含量低于对照组及缓解组,全血Mn含量与正常组及缓解组无显著改变。结论 白血病急性期血液中微量元素有明显变化,全血Cu,Zn含量有更显著参考价值。     

Some Mineral,trace Element and Heavy Metal Concentrations in Lung Cancer

Objective: We aimed to determine the relationship between some mineral, trace element and heavy metallevels in the patients of lung cancer by measuring serum levels of copper (Cu), lead (Pb), zinc (Zn), iron (Fe),cobalt (Co), cadmium (Cd), manganese (Mn), magnesium (Mg). Methods: A total of 50 lung cancer and humanhealth (30 lung cancer and 20 healthy human) were included in the study. Venous blood samples of each lungcancer were obtained, and serum Cu, Pb, Zn, Fe, Cd, Co, Mn, Mg levels were analysed by Atomic AbsorptionSpectrophotometer measurements. Results: Mg value measured in lung cancer group were lower than the controlgroup and this was statistically significant (P<0.01). Serum Cu level was significantly lower with lung cancercompared to healthy human (P<0.01). Pb level was significantly higher than those of controls (P<0.01). Theserum Zn level was significantly lower in serum of lung cancer group than controls (P<0.01). Serum Mn and Colevels were found increased in lung cancer group than controls (P<0.01). Cd value was higher in lung cancer butit was not statistically significant (p>0.01). The mean concentration of Fe in the serum of lung cancer patientswas higher than in the controls, but the difference was not significant (p>0.01). There was a positive correlationbetween Cd and Pb level, and between Mn and Fe levels in lung cancer. There was a negative correlation betweenCo and Zn levels of healthy human. There was a negative correlation between Co and Mg levels of lung cancer.Conclusions: Serum Cu, Pb, Zn, Fe, Mg, Co, Mn and Cd might be play a role in the patients of lung cancers.Zn may protective as potent lung cancer. In addition, it is suggested that low levels of zinc can induce thepathogenesis of lung cancer.     

The effects of platinum chemotherapy on essential trace elements

The effects of cisplatin chemotherapy on the metabolism of essential trace elements were investigated in 12 patients before and after treatment with cisplatin. In serum, the mean post-treatment concentrations of Cu (13.19 μmoll⁻¹), Zn (9.57 μmoll⁻¹) and Mg (0.54 mmoll⁻¹) were significantly reduced compared with the pre-treatment levels (19.35, 11.86 and 0.67) while Se, caeruloplasmin and C-reactive protein concentrations were unaltered. Urinary excretion of Cu, Mg and Zn were enhanced. The urinary N-acetyl-β-D-glucosaminidase activity (a marker of proximal renal tubular dysfunction) was also increased and suggests the mechanism for decrease of certain t race elements in serum during treatment could be increased urinary excretion caused by impaired cellular metabolism. It is not clear whether the loss of trace elements via the urine has any implication for the clinical status of cancer patients treated with cisplatin.     

血清中微量元素铜,锌,镉,锰与恶性脑瘤关系的研究

本文使用原子吸收分光光度计测定30例恶性脑瘤、50例良性脑瘤患者手术前后血清中微量元素铜、锌、镉、锰含量,并以70例一般神经性疾病患者和98例健康人作对照组。统计结果揭示:1.恶性脑瘤组手术前血清中铜、锌、镉、锰含量显著高于术后(P<0.01),良性脑瘤组除术前血清锰低于术后,余者均显著高于术后(P<0.01),两组脑瘤手术前后铜/锌比差异均无显著性(P>0.05),2.不同病理状态血清铜和铜/锌比改变也有差别,即恶性脑瘤>良性脑瘤>一般脑疾病>健康人,而术后两组脑瘤血清铜水平下降接近正常人,可提示术前血清铜水平在鉴别脑瘤性质及区分一般脑疾病具有潜在的诊断价值;术后血清铜水平对估计恶性和良性脑瘤预后方面有重要意义。     

血清微量元素、GPDA活性和Hp感染与胃癌发生的相关性

目的探讨血清微量元素、苷氨酰脯氮酸二肽氮基肽酶活性（GPDA）和幽门螺杆菌（Hp）感染与胃癌发生的关系。方法采用幽门螺杆菌粪便抗原检测法（HpSA法）、终点法和速率法，分别检测117例初治前胃癌患者、45例良性胃部疾病患者及40例正常人粪便中的Hp阳性率和血清微量元素Ca、Mg、Fe、Cu、Zn的含量及GPDA活性，并比较分析。结果胃癌患者血清Fe和Cu／zn含量明显高于正常对照组（均P〈0．05），Zn含量显著低于正常对照组（P〈0．05），Hp和GPDA阳性率分别为70．9％（83／117）和71．8%（84／117）。Hp、GPDA阳性组Zn含量显著低于阴性组（P〈0．05）。结论血清Zn含量降低可能是胃癌发生的癌前因素，Zn含量降低可诱发Hp感染而促发癌变。     

微量元素与消化道癌Logistic回归分析及临床意义

 本文测定了130例食管癌，100例胃癌，60例结直肠癌，22例肝癌，56例消化道良性疾患。结果表明：消化道癌患者血清中铜，铁含量，铜/锌比显著高于健康人（P＜0.05～P<0.001），锌，钙含量明显低于健康人（P<0.05～P相似文献