唾液SA、CEA测定在口腔鳞状细胞癌诊断中的意义

目的　通过对唾液中癌胚抗原 (CEA)和唾液酸 (SA)含量的测定和分析 ,探讨唾液中CEA和SA含量在口腔颌面部鳞状细胞癌诊断中的意义。方法　分别采用ELLISA法酶法 ,检测了 2 2例口腔鳞状细胞癌患者、2 2例口腔良性肿瘤患者、4 0例正常人唾液中的CEA和SA含量。结果　经过对测定数据进行统计学处理 ,SA含量在正常人组与良性肿瘤组对比 ,P >0 .0 5 ;正常人与鳞状细胞癌组对比 ,P <0 .0 1。良性肿瘤与鳞状细胞癌组对比 ,P >0 .0 5 ;CEA含量在正常人组与良性肿瘤和鳞状细胞癌组对比 ,P <0 .0 1,而鳞状细胞癌和良性组对比P >0 .0 5。结论　联合检测口腔颌面部鳞状细胞癌唾液CEA和SA含量明显高于正常人和良性肿瘤患者 ,口腔科临床开展唾液CEA和SA的测定 ,对诊断颌面部鳞状细胞癌具有一定的辅助作用     

口腔颌面部恶性肿瘤患者血清中透明质酸含量的检测

目的　检测口腔颌面部恶性肿瘤患者血清中透明质酸(HA)的含量,探讨HA对口腔颌面部恶性肿瘤辅助诊断和治疗效果监测的价值。方法　选择住院治疗的口腔颌面部恶性肿瘤患者44例,健康人24例。肿瘤患者于手术前或化疗开始前采血,其中20例患者于手术后或化疗结束后再次采血;24例健康人于常规体检时采血。用放射免疫试验测定所有标本血清中的HA浓度。结果　治疗前口腔颌面部恶性肿瘤患者血清中HA含量显著高于健康人(P<0·05),口腔颌面部鳞癌患者血清中HA含量显著高于健康人(P<0·05),涎腺腺样囊性癌患者血清中HA 含量与健康人无显著差异(P>0·05)。口腔颌面部恶性肿瘤Ⅲ、Ⅳ期患者血清中HA含量显著高于Ⅰ、Ⅱ期患者和健康人(P<0·05)。口腔颌面部恶性肿瘤患者治疗后血清中HA含量低于治疗前,但差异不显著(P>0·05)。结论　HA含量测定对口腔颌面部恶性肿瘤可能有辅助诊断价值。血清中HA的含量变化可作为肿瘤分期和判断肿瘤预后的参考,但不能用于治疗效果的监测。     

口腔颌面部恶性肿瘤患者血清中可溶性CD44v6含量的研究

目的 :检测口腔颌面部恶性肿瘤患者血清中可溶性CD44v6(solubleCD44v6,sCD44v6)的含量及其含量在恶性肿瘤不同分期和治疗前后的变化。方法 :选择住院治疗的口腔颌面部恶性肿瘤患者 2 8例 ,正常对照组 2 8例。患者于手术或化疗开始前第一次采取空腹静脉血 ,手术或化疗结束后 1周第二次采取空腹静脉血 ,正常对照组于常规体检时采取空腹静脉血。采用定量酶联免疫吸附实验 (enzyme linkedimmunosorbentassay ,ELISA)检测血清中sCD44v6的含量。 结果 :治疗前口腔颌面部恶性肿瘤患者血清中sCD44v6含量与健康对照组无显著差异 (P >0 .0 5 ) ,口腔颌面部鳞癌、涎腺腺样囊性癌患者血清中sCD44v6含量分别与健康对照组无显著差异 (P >0 .0 5 )。口腔颌面部恶性肿瘤Ⅲ、Ⅳ期患者血清中sCD44v6含量高于Ⅰ、Ⅱ期和健康对照组 ,但差异无显著性 (P >0 .0 5 )。经配对t检验 ,口腔颌面部鳞癌患者治疗后血清中sCD44v6含量显著低于治疗前含量 (P <0 .0 5 )。结论 :血清中sCD44v6含量不能作为口腔颌面部恶性肿瘤诊断的肿瘤标志物 ,但可能对口腔颌面部鳞癌治疗效果的监测有参考价值     

口腔及涎腺癌患者唾液与血清中CEA和CA-50含量的研究

目的 探讨口腔及涎腺恶性肿瘤患者唾液及血清中 CEA和 CA-50的含量。方法 应用酶联免疫和放射免疫法对80例口腔及涎腺恶性肿瘤、40例良性肿瘤、80例健康对照者进行唾液CEA和CA-50含量测定,其中60例恶性肿瘤患者同时行血清CEA和CA-50测定。结果 唾液CAE和CA-50含量在恶性肿瘤组、良性肿瘤组及健康对照组组间差异有显著性（P<0.01）。 60例恶性肿瘤血清 CEA 7例轻度升高,CA-50仅见 3例升高。结论 检测口腔及涎腺恶性肿瘤患者唾液 CEA和 CA-50含量较血清敏感,对恶性肿瘤的早期诊断有一定参考价值。     

口腔颌面部肿瘤与唾液表皮生长因子关系的初步研究

目的：探讨唾液表皮生长因子（EGF）含量与口腔颌面部肿瘤之间的关系及其临床意义。方法：以^125I-EGF为配体,用放射免疫法,对123例口腔面部肿瘤及炎症患者唾液EGF（sEGF)含量进行测定分析,同时以40例健康成年人sEGF为对照。结果：腺恶性肿瘤sEGF含量显著性高于良性肿.,一两者均明显高于正常对照组。粘膜鳞癌及复发,癌前病变患者sEGF均较正常对照组明显升高,但各组间无显著性差异,仅呈上升趋势（淋巴结转移患者较正常对照组升高无显著性）。口腔颌面部炎症患者sEGF较对照组升高有高度显著性。论：sEGF含量在涎腺肿瘤及粘膜鳞癌,炎症中均有不同程度的升高。     

口腔颌面部恶性肿瘤EB病毒感染的初步检测

目的揭示口腔颌面部恶性肿瘤与Ｅｐｓｔｅｉｎ－Ｂａｒ（ＥＢ）病毒感染的关系。方法采用聚合酶链（ＰＣＲ）反应技术，对１８例口腔颌面部恶性肿瘤患者的组织标本及其唾液内的ＥＢ病毒ＤＮＡ（ＥＢＶ－ＤＮＡ）存在情况进行检测，并以正常人作为对照。结果肿瘤组织标本中有３例唾液腺恶性肿瘤分别检出了ＥＢＶ－ＤＮＡ片段，这３例的唾液脱落上皮细胞中也扩增出ＥＢ病毒的基因片段；而正常人和其它肿瘤组织及唾液检测结果为阴性。结论唾液腺肿瘤可能与ＥＢ病毒的感染存在着一定的关系。     

口腔颌面部恶性肿瘤患者全唾液中TNF—α含量的放射免疫分析

采用放射免疫法（ＲＩＡ）检测正常人和口腔颌面部恶性肿瘤患者全唾液和血清中ＴＮＦ－α的含量，同时观察５例口腔颌面部恶性肿瘤患者手术前、后全唾液中ＴＮＦ－α水平变化。结果可见：①全唾液中ＴＮＦ－α含量正常组为１２．６１±５．３０ｆｍｏｌ／ｍｌ；肿瘤组为１２．７６±８．６２ｆｍｏｌ／ｍｌ，两者无显著性差异；②肿瘤组血清中ＴＮＦ－α含量为２１．６４±３．２６ｆｍｏｌ／ｍｌ，全唾液中ＴＮＦ－α含量为１２．２２±４．６２ｆｍｏｌ／ｍｌ，两者相比有显著性差异（Ｐ＜０．０００４）。③５例手术前全唾液中ＴＮＦ－α含量为１２．７６±８．６２ｆｍｏｌ／ｍｌ，手术后为１１．９±１０．５７ｆｍｏｌ／ｍｌ。从有限例数的结果提示尚不宜采用唾液检测来代替血清检测。     

口腔颌面部恶性肿瘤患者唾液癌胚抗原及IgA测定和临床意义

检测正常人及口腔颌面部肿瘤患者唾液中癌胚抗原（CEA）和IgA含量,并探讨其临床意义。方法：CEA采用酶联免疫试剂盒,IgA用免疫球蛋白试剂盒（比法法）。结果：恶性肿瘤和正过人比较,CEA和IgA含量都显著增高（P＜0.01）,恶性肿瘤和良性肿瘤比较,CEA和IgA含量方显著增高（P＜0．01）。CEA和IgA含量水平与恶性肿瘤分期呈正相关,CEA相关系往r＝0．60（P＜0．01）,IgA相关系数r＝0．41（P＜0．05）。结论;口腔便面部恶性肿瘤患者,唾液中CEA、IgA含量显著增高,并与肿瘤分期呈正相关,签提唾液CEA,IgA检测对肿瘤良、恶性鉴别,临床畏助诊断以及恶性肿瘤预后和疗效监测有一定指意义。     

颌面部恶性肿瘤手术前后D-二聚体含量变化及临床意义

目的:探讨颌面部恶性肿瘤手术前后D-二聚体含量的变化及其临床意义.方法:回顾性分析2017年9月—2019年4月在西安交通大学口腔医院进行手术治疗的176例颌面部恶性肿瘤患者的临床资料,术后参考《口腔颌面部恶性肿瘤治疗指南》疗效判定标准将患者分为治疗有效组(152例)和治疗无效组(24例).采用酶联免疫吸附法(enzy...     

唾液生物标记物与口腔恶性肿瘤相关性的研究进展

唾液中存在着多种与肿瘤相关的生物标记物,相当一部分与口腔颌面部恶性肿瘤的存在、颈转移、复发等关系密切。检测和监测唾液中肿瘤相关生物标记物可有助于发现部位深在的、隐匿性肿瘤,判断颈淋巴结转移和治疗后的复发趋势。本文就文献报道的与口腔颌面恶性肿瘤相关的唾液生物标记物作一综述。     

Free amino acid levels in oral fluids of normal subjects and patients with periodontal disease

The content of free amino acids in submandibular, parotid and whole saliva and in gingival fluid was measured by automatic analyser in patients with progressive periodontitis and in controls. The concentration of individual amino acids showed considerable variation in all the fluids. Two amino acids, proline and delta-aminovaleric acid, were never found in gingival fluid or in submandibular and parotid saliva, although detectable in whole saliva. Thus, these amino acids must appear in whole saliva as a result of bacterial metabolism or by degradation of salivary proteins rich in proline. The free amino acid levels in whole saliva did not reflect those of any of the single oral fluids analysed, further stressing the importance of bacterial metabolism as a cause of the wide range of amino acid concentrations. Because of the multifactorial origin of these free amino acids, their determination in oral fluids is of no practical diagnostic value except perhaps in extreme cases.     

Levels of human defensin-1, an antimicrobial peptide, in saliva of patients with oral inflammation.

OBJECTIVE: The purpose of this study was to investigate the presence of an antimicrobial peptide, human defensin-1, in the saliva of patients with oral inflammation. STUDY DESIGN: Whole saliva samples were collected from patients with oral inflammation and from healthy volunteers. Human defensin-1 in saliva was isolated and purified by reversed-phase high-performance liquid chromatography. The amino acid sequence and molecular weight of defensin-1 were determined. The concentration of defensin-1 in saliva was quantified by high-performance liquid chromatography. Serum C-reactive protein concentration was measured by particle-enhanced turbidimetric immunoassay. RESULTS: The salivary defensin-1 concentration was significantly higher in patients with oral inflammation than in healthy volunteers; furthermore, in patients with oral inflammation, the concentration was significantly higher before treatment than after treatment. In the patients with oral inflammation, there was a strong positive correlation between salivary defensin-1 concentration and serum C-reactive protein concentration. CONCLUSIONS: The findings suggest that defensin-1 in saliva may be a convenient marker of inflammation associated with oral disease.     

胃癌患者口腔菌群的分布特征

目的 利用高通量测序,研究胃癌患者口腔微生物的菌群分布特征,获得口腔菌群及牙周致病菌与胃癌的相关性的科学证据.方法 采集胃癌患者和健康对照人群口腔中的唾液及牙菌斑样本,PCR扩增,并利用Illumina Miseq测序平台,对各样本中16S rRNA V4区进行双端测序通过BIPES以及QIIME分析并比较不同人群口腔中牙菌斑和唾液样本中细菌群落结构及其多样性,聚类分析胃癌患者口腔菌群失衡的主要特征.结果 胃癌患者和健康人群的口腔菌群的交叠情况结果显示胃癌患者的口腔细菌更为复杂,菌群的组成和相对丰度分析发现,在胃癌组的唾液和牙菌斑样本中某些细菌的异常聚集,包括:红环菌目(Rhodocyclales)、梭菌目(Clostridiales)、肠杆菌目(Enterobacteriales)、假单胞菌目(Pseudomonadales)、暖绳菌目(Caldilineales)、菌目Synergistales.而芽孢杆菌目(Bacillales)、Streptophyta和立克次体目(Rickettsiales)3个在胃癌组中异常减少.结论 胃癌患者的口腔微生物群落结构与健康对照人群有所不同,提示口腔菌群发生相应改变与胃癌有一定的相关性.表明口腔微生物的检测有潜力作为未来胃癌早期诊断或筛查的一种手段.     

Defensin-1, an antimicrobial peptide present in the saliva of patients with oral diseases

OBJECTIVES AND DESIGN: A preceding paper has noted a detection of defensin-1 (HNP-1), a peptide with antimicrobial and cytotoxic properties, in the saliva of patients with oral squamous cell carcinoma. The present study deals with the presence of HNP-1 in the saliva of patients with various oral diseases. METHODS: Whole saliva samples were obtained from the patients. HNP-1 in the saliva was isolated and purified by HPLC and the amino acid sequence of the peptide was determined. The molecular weight of HNP-1 was measured by mass spectrometry. The concentration of HNP-1 in saliva was determined by comparing the height of eluted HNP-1 with that of a synthetic HNP-1 standard. RESULTS: The concentrations of HNP-1 in the saliva of patients with oral lichen planus (n = 5), leukoplakia (n = 4), and glossitis associated with iron deficiency (n = 4) were 8.3 +/- 4.3 micrograms ml-1, 13.2 +/- 7.9 micrograms ml-1, and 11.4 +/- 4.9 micrograms ml-1, (mean +/- s.d.), respectively. These concentrations were significantly higher than those in healthy subjects (0.8 microgram ml-1) (P < 0.01). In contrast, salivary HNP-1 concentrations in patients with glossodynia (n = 4) and oral discomfort (n = 4) were similar to those in healthy subjects. CONCLUSIONS: Since HNP-1 is a non-specific defensive peptide present in neutrophils, it may play an important role in the protection against diseases such as oral lichen planus, leukoplakia, and glossitis associated with iron deficiency.     

口腔鳞癌患者唾液cyfra 21-1含量与癌组织CK19表达的相关性研究

目的：检测口腔鳞癌患者唾液中cyfra21-1含量、组织中CK19蛋白质表达和基因转录水平,探讨其相互关系。方法：对30例口腔鳞癌患者和30例正常人的唾液采用ELISA法检测cyfra21-1含量,其中6例口腔鳞癌患者的癌组织和癌旁组织分别采用免疫组织化学和实时定量RT-PCR法检测CK19蛋白质表达强度和CK19mRNA水平,采用SPSS10.0软件包进行统计学分析。结果：口腔鳞癌患者唾液cyfra21-1含量为（85.95±78.00）μg/L,显著高于对照组的（42.27±40.84）μg/L;口腔鳞癌癌组织CK19蛋白质表达强度和CK19mRNA水平显著高于癌旁组织。CK19mRNA水平与CK19蛋白质表达强度呈显著正相关,癌组织CK19蛋白质与唾液cyfra21-1含量也显著相关。结论：口腔鳞癌患者唾液cyfra21-1含量和组织CK19蛋白表达及基因转录水平显著升高,组织CK19表达升高,对唾液cyfra21-1含量的上升起着重要作用。     

Comparison of salivary cytokine levels in oral cancer patients and healthy subjects

In order to find informative salivary biomarkers specific to oral cancer we examined expression of 4 kinds of cytokine in saliva. Levels of interleukins (IL-1beta, -6, -8) and osteopontin were measured by ELISA using whole saliva samples collected from 19 patients with oral cancer (9 men, 10 women; mean age, 60.9 years) and 20 healthy persons (15 men, 5 women; mean age, 32 years). Expression of the 4 cytokines was higher in patients with oral cancer than in healthy controls. The difference was significant in IL-6, in particular. The results suggest that saliva offers a potential target for a screening test aimed at detection of precancerous lesions.     

Adenosine deaminase and 5'-nucleotidase activities in saliva from patients with oral and laryngeal cancer

OBJECTIVE: The aim of this study was to evaluate saliva's activities of adenosine deaminase (ADA) and 5'-nucleotidase (5'-NT) enzymes and their utility as diagnostic and therapeutic markers in oral and laryngeal cancer. MATERIALS AND METHODS: Pre- and post-operative saliva's activities of ADA and 5'-NT enzymes were measured in patients with squamous cell oral (n = 10) and laryngeal cancer (n = 17) and compared with control saliva samples (n = 19). RESULTS: The ADA was found to be lower in saliva of the patients with oral cancer compared with the laryngeal cancer and controls. However, no significant differences were found between pre- and post-operative values for both enzymes in the patient groups. We also could not find statistically significant differences between saliva's activities of 5'-NT in patients and control subjects. CONCLUSIONS: Low activity of ADA observed in saliva of the patients with oral cancer has been suggested as a compensatory mechanism against rapid purine and DNA metabolism in cancer cells. The current study does not support the hypothesis that saliva's activities of these enzymes may be used as additional diagnostic and prognostic cancer markers.     

口腔癌患者唾液中透明质酸含量的检测及意义

目的:检测口腔癌患者唾液中透明质酸(HA)的含量,探讨HA对口腔癌辅助诊断和治疗效果监测的价值。方法:选择住院治疗的口腔癌患者36例,健康人20例,采用酶联免疫吸附试验法(ELISA)测定所有标本唾液中的HA浓度。结果:治疗前口腔癌患者唾液中HA含量显著高于健康人(P<0.05),治疗后口腔癌患者唾液中HA含量低于治疗前,但差异不显著(P>0.05)。结论:唾液中HA含量测定对口腔癌可能有辅助诊断价值。唾液中HA的含量变化可作为判断肿瘤预后的参考,但不能用于治疗效果的监测。     

Elevated production of salivary nitric oxide in oral mucosal diseases

Nitric oxide (NO) is known to play an important role in biological systems. In this study, we measured levels of NO in the saliva of 39 patients with oral mucosal diseases: 21 had oral lichen planus (OLP) and 18 had recurrent aphthous ulceration (RAU). NO was assayed using the Griess reagent, which measures nitrite (NO2), the byproduct of NO. NO2 was detected in all tested samples, and levels in the saliva of patients were significantly increased relative to those of healthy subjects. We also examined the effect of NO on fibroblasts, keratinocytes and NA cells (an epithelial cancer cell line) in vitro. S-nitroso-N-acetyl-DL-penicillamine (SNAP) and 3-morpholinosydnonimine (SIN-1) were used as NO donating reagents. The results revealed that cell viability was significantly reduced by NO derived from SNAP and SIN-1 in a dose-dependent manner. Although the role of salivary NO in normal physiology is as yet unknown, these findings suggest that excessive salivary NO plays a potential role in modifying oral mucosal diseases as a physiopathological regulator.     

Increased Cyfra 21-1 concentration in saliva from primary oral squamous cell carcinoma patients

BACKGROUND: Saliva is the body fluid in the oral cavity and contacts directly with oral mucosa. As a detective media, it is acceptable and non-traumatic. Cyfra 21-1, being the soluble fragment of cytokeratin 19(CK19), correlates well with oral squamous cell carcinoma (OSCC). OBJECTIVE: To investigate the saliva Cyfra 21-1 concentrations in OSCC patients and healthy persons, and the correlation between the Cyfra 21-1 concentration in saliva and the CK19 expression in tissue from OSCC patients. DESIGN: Saliva Cyfra 21-1 concentration was detected by ELISA in 30 OSCC patients and 30 healthy persons; CK19 protein expression and CK19 mRNA level were, respectively, detected by immunohistochemistry and fluorescent real-time RT-PCR in cancerous and paracancerous tissues from 33 OSCC patients. RESULTS: Saliva Cyfra 21-1 concentration in OSCC patients (85.95+/-78.00 microg/L) was significantly higher than that in healthy persons (42.27+/-40.84 microg/L) (P=0.009); it was also significantly higher in the patients suffering later tumour recurrence (130.95+/-66.38 microg/L) than that in the patients without tumour recurrence (74.84+/-63.45 microg/L) (P=0.023). CK19 protein expression increased significantly in OSCC tissues (P<0.001) with positive rate of 90.9%, CK19 mRNA level in cancerous tissues was 2.21 folds higher than that in paracancerous tissues (P=0.020); significant correlation was found between tissue CK19 protein expression and tissue CK19 mRNA level (P=0.003), and great correlation was found between tissue CK19 protein expression and saliva Cyfra 21-1 concentration (P=0.051). CONCLUSIONS: The increased CK19 expression in OSCC tissues plays an important role in the increase of saliva Cyfra 21-1 concentration. Potential clinical value of saliva Cyfra 21-1 detection is suggested for OSCC. Further studies are encouraged to reveal the real diagnostic and prognostic value of detecting saliva Cyfra 21-1 concentration for OSCC.