Uncoupling of Vascular Endothelial Growth Factor (VEGF) and Inducible Nitric Oxide Synthase (iNOS) in Gingival Tissue of Type 2 Diabetic Patients

In this study, we investigate the relation between vascular endothelial growth factor (VEGF) and inducible nitric oxide synthase (iNOS) in periodontal disease of diabetic and non-diabetic individuals. We evaluated immunohistochemical VEGF and iNOS expressions in gingival biopsies from healthy individuals (no chronic periodontitis (CP)), patients with periodontitis alone (CP), patients with diabetes alone (DM) and diabetic patients with chronic periodontitis (DM?+?CP). We found a significant positive correlation between VEGF and iNOS expression in non-diabetic groups, but not in diabetic ones. Periodontal clinical parameters were not found to be significantly correlated with the inflammatory markers in no-CP, CP, and DM groups, whereas in DM?+?CP, positive and significant correlations were found between all the considered periodontal parameters and epithelial VEGF and endothelial iNOS. The uncoupling of VEGF and iNOS expression in diabetic individuals could allow a greater involvement of the markers in the inflammatory process of periodontitis.     

Adjunctive low-dose doxycycline therapy effect on clinical parameters and gingival crevicular fluid tissue plasminogen activator levels in chronic periodontitis

Objective and design: The present study examined effectiveness of low-dose doxycycline (LDD) in combination with nonsurgical therapy on gingival crevicular fluid (GCF) tissue plasminogen activator (t-PA) levels and clinical parameters in chronic periodontitis (CP) a over 12-month period. Methods: GCF samples were collected, probing depth (PD), clinical attachment level (CAL), gingival index (GI) and plaque index were recorded at baseline, 3, 6, 9 and 12 months. CP patients (n = 65) were randomized to LDD or placebo groups. LDD group received LDD (20 mg) b.i.d for 3-months plus and root planing (SRP), while placebo group was given placebo capsules b.i.d for 3-months plus SRP. GCF t-PA levels were determined by ELISA. Friedman, Wilcoxon and Mann-Whitney test was used for statistical analysis. Results: Significant improvement was observed in all clinical parameters in both groups over 12-month period (p < 0.01). LDD group had lower PD, CAL and GI scores than placebo group at 6, 9 and 12-months (p < 0.05). GCF t-PA levels reduced in both groups over 12-month period (p < 0.01). LDD group had lower GCF t-PA levels than placebo group at 6 and 9-months (p < 0.05). Conclusions: These results provide additional information about usefulness of LDD therapy as an adjunct to nonsurgical therapy in long-term management of periodontitis. Received 8 May 2006; returned for revision 13 June 2006; accepted by J. Di Battista 12 July 2006     

低能量激光照射对牙周炎的治疗效应研究

目的观察牙周基础治疗结合低能量激光照射疗法（LLLT）对牙周炎的治疗效果。方法选择18例慢性牙周炎患者共80颗患牙,左右对称,随机确定一侧为实验组（基础治疗加激光）,对侧牙为对照组（基础治疗）。口腔卫生宣教和龈上洁治后1周为基线,治疗1周、4周和12周时,检测龈沟出血指数（SBI）、牙周探诊深度（PD）、临床附着丧失（CAL）;收集2组的龈沟液,用ELISA法检测其中的碱性成纤维细胞生长因子（b．FGF）、IL．113和IL．8的水平,并比较其变化。结果SBI、PD的变化：1周时仅SBI实验组与基线相比,差异具有统计学意义（P〈O．05）;4周时实验组和对照组分别与基线相比,其差异均具有统计学意义（P〈O．05）;12周时对照组与基线相比,差异有统计学意义（P〈0．05）,实验组差异更为显著（P〈0．01）。2组SBI均在PD~〉6mm时下降最明显。CAL的改善：4周时实验组与基线相比,差异具有统计学意义（P（．0．05）;12周时与基线相比,对照组差异具有统计学意义（P〈0．05）,实验组效果更为显著（P〈0．01）。b-FGF的水平：治疗后与基线相比,实验组持续上升,对照组先下降后回升到基线水平,12周时2组相比,差异具有统计学意义（P〈O．05）。IL．1B和IL-8的变化：12周时,实验组的变化优于对照组,2组间相比,其差异无统计学意义（侈0．05）。结论LLLT通过降低患者SBI、减少PD、改善CAL和增加龈沟液b-FGF的水平等途径可加速牙周组织的愈合。     

慢性牙周炎伴肥胖患者血清中IL-6、IL-18表达水平的研究

目的 探究白细胞介素6（IL-6）、白细胞介素18（IL-18）在肥胖慢性牙周炎患者血清中的表达水平变化及意义。方法 选取2017年9月~2018年5月在佳木斯大学附属口腔医院牙周科门诊确诊为慢性牙周炎患者15例设为NP组,另选取同期慢性牙周炎伴肥胖患者15例设为FP组。收集两组患者外周血样本并记录牙周PD、CAL,采用双抗体夹心酶联免疫吸附法（ELISA法)测定样本中的IL-6、IL-18的表达水平,分析两组间指标的差异及相关性。结果 FP组血清中IL-6、IL-18分别为（9.16±2.35）pg/ml、（325.22±98.67）pg/ml,其表达水平分别高于NP组的（6.15±2.06）pg/ml和（241.52±78.82）pg/ml,差异有统计学意义（P＜0.05）;FP组中PD与血清中IL-6、IL-18呈高度正相关（r＝0.894,P＜0.01;r＝0.819,P＜0.01）;CAL与血清中IL-6、IL-18呈正相关（r＝0.885,P＜0.01,r＝0.828,P＜0.01）;NP组中PD与血清中IL-6、IL-18也有正相关关系（r＝0.842,P＜0.01,r＝0.728,P＜0.01）;CAL与血清中IL-6、IL-18呈正相关（r＝0.884,P＜0.01,r＝0.707,P＜0.01）。结论 肥胖状态所导致的外周血中IL-6、IL-18水平的升高与CP的发生发展存在着密切联系。     

Clinical and antimicrobial efficacy of a controlled-release device containing chlorhexidine in the treatment of chronic periodontitis

A controlled-release device (CRD) containing chlorhexidine gluconate, such as PerioCol?CG (Eucare Pharmaceuticals Pvt. Ltd,, Chennai, India), for subgingival application has little reported data with clinical as well as antimicrobial efficacy. This study evaluated clinical and subgingival microbial changes on using indigenously developed PerioCol?CG as an adjunct to scaling and root planing (SRP) in the treatment of chronic periodontitis. Forty posterior first molar sites having probing pocket depth ≥5 mm were selected and divided into two groups, with 20 sites in each group, in a split-mouth design. Group A (test site) was treated with SRP and PerioCol?CG, while group B (control site) was treated with SRP alone. Subgingival microbial samples were collected at baseline and 1 month after the initial SRP, while probing depth (PD), clinical attachment level (CAL) and gingival index (GI) were recorded at baseline, after 1 month and after 3 months. Microbial detection of Porphyromonas gingivalis (P. gingivalis) and Tannerella forsythia (T. forsythia) was done by means of polymerase chain reaction (PCR). A significant improvement was observed in all clinical measures in sites treated with PerioCol?CG as compared to the control sites during the study period. Also, there was a statistically significant reduction in the proportion of occurrence of P. gingivalis and T. forsythia after intervention in test sites as compared to control sites. Our data suggest that SRP combined with subgingival administration of PerioCol?CG has a significantly better and prolonged effect compared to SRP alone on the PD, clinical attachment loss and elimination of periodontopathogens.     

Application of chitosan gel in the treatment of chronic periodontitis

Local administration of antibiotics in periodontal therapy can be provided with an appropriate delivery system. The purpose of this study was to evaluate the clinical effectiveness of chitosan, both as a carrier in gel form and as an active agent in the treatment of chronic periodontitis (CP). The chitosan gel (1% w/w) incorporated with or without 15% metronidazole was prepared and applied adjunctive to scaling and root planing (SRP) in comparison to SRP alone (control group-C), in CP patients. The clinical parameters such as probing depth (PD), clinical attachment level, the amount of gingival recession, plaque index, gingival index, and gingival bleeding time index were recorded at baseline and at weeks 6, 12, and 24. In all groups, significant improvements were observed in clinical parameters between baseline and week 24 (p < 0.05). The reductions in PD values were 1.21 mm for Ch, 1.48 mm for Ch + M, and 0.94 mm for C groups. No complications related to the chitosan were observed in patients throughout the study period. It is suggested that chitosan itself is effective as well as its combination with metronidazole in CP treatment due to its antimicrobial properties.     

Gingival Crevicular Fluid and Salivary Periostin Levels in Non-Smoker Subjects With Chronic and Aggressive Periodontitis

Periostin, an extracellular matrix protein functioning as an important structural mediator and adhesion molecule, has been shown to be an important regulator of connective tissue integrity. This study aimed to evaluate the levels of periostin in chronic periodontitis (CP) and aggressive periodontitis (AgP) compared to non-periodontitis (NP). Individuals were submitted to gingival crevicular fluid (GCF) and saliva sampling. Periodontal examination consisted of plaque index (PI), gingival index (GI), probing depth (PD), bleeding on probing (BOP), and clinical attachment level (CAL) measurements. Assays for periostin were performed by an enzyme-linked immunosorbent assay. Periodontitis patients presented more severe clinical indices compared to the NP group (p?<?0.001). The mean GCF level of periostin was lowest in the AgP group as compared to the other groups and was lower in the CP group as compared to the NP group (p?<?0.001). Increased levels of periostin were observed in the saliva of patients with AgP as compared to the CP and NP groups (p?<?0.05). There was a negative relationship between GCF periostin levels and clinical parameters (p?<?0.01), whereas a positive correlation was observed between salivary periostin levels and full-mouth GI and CAL scores (p?<?0.01). To our knowledge, this is the first report investigating periostin levels in GCF and saliva in aggressive periodontitis. The results suggest that subjects with CP and AgP exhibit a different periostin profile. Periostin in GCF may have a protective role against periodontal disease. Furthermore, salivary periostin concentrations may have a promising diagnostic potential for the aggressive forms of periodontal disease.     

尼美舒利对慢性牙周炎治疗效果的评价

目的:评价尼美舒利对慢性牙周炎的治疗效果。方法:选择136名慢性牙周炎患者，所有患者均进行牙周基础治疗，然后分别应用尼美舒利和甲硝唑治疗4周。在牙周治疗前及治疗2和4周后常规临床检查，记录探诊出血、菌斑指数和探诊深度，分别比较两种药物对慢性牙周炎的临床治疗效果。 结果:在临床治疗中观察到尼美舒利和甲硝唑均能有效减轻牙周炎症程度，但尼美舒利能显著降低探诊深度（P<0.05）;尼美舒利治疗慢性牙周炎的显效率明显高于甲硝唑治疗组（P<0.05）。 结论:与甲硝唑相比较，尼美舒利对慢性牙周炎的临床治疗效果更显著。     

中重度牙周炎伴Ⅱ型糖尿病的牙周基础治疗的近期疗效观察

目的评估一组中重度牙周炎伴Ⅱ型糖尿病患者牙周基础治疗对牙周临床指标的影响,以及代谢控制、患病时间对近期疗效的影响。方法选取60名中重度牙周炎伴Ⅱ型糖尿病患者为实验组,以48名无系统性疾病的中重度牙周病患者为对照组,两组患者均行牙周基础治疗和药物治疗,分别记录并比较两组患者治疗前后的各项牙周临床指标,包括探诊深度（PPD）、探诊出血指数（BOP）、附着丧失（CAL）。结果实验组和对照组的BOP治疗前与治疗后3个月、6个月比较,均有明显改善（P〈0.05）,两组患者的PPD和CAL治疗后均有改善,但差异无统计学意义;两组患者治疗后3个月与6个月的各项临床指标没有明显改变;实验期间两组患者的各项牙周临床指标的变化,差异无统计学意义。治疗前后的变化：BOP与CAL在罹患糖尿病病史长短不同的两组中差异有统计学意义（P〈0.05）,BOP以及PPD在血糖控制差与血糖控制良好的两组中差异有统计学意义。结论糖尿病并牙周炎的牙周基础治疗是有效的,且疗效稳定,不需激进的治疗方式。血糖控制不良、糖尿病病史较长的糖尿病并牙周炎患者的疗效比血糖控制良好、糖尿病病史短的患者差。     

The inhibitory effect of zoledronate on early-stage osteoinduction by recombinant human bone morphogenetic protein 2 in an osteoporosis model

Abstract

This study evaluated the effect of the combined treatment of intravenous zoledronic acid (ZA, 0.08?mg/kg) and rhBMP-2 (5?µg) on osteogenesis in a calvarial defect model of ovariectomized SD rats. New bone formation was evaluated 4 or 8 weeks after calvarial defect implantation using micro-CT and histology. Micro-CT results revealed that the rhBMP-2 group showed significantly higher calvarial defect coverage ratio compared with the ZA?+?rhBMP-2 group at 4 weeks. In addition, bone formation indices were significantly lower in ZA?+?rhBMP-2 group when compared with the rhBMP-2 group after 4 weeks, which indicates a negative effect of ZA on the initial bone formation and the bone quality. At 8 weeks, the negative effect induced by ZA treatment was alleviated as time passed. Histological examination showed similar results to the micro-CT measurements. In conclusion, although ZA treatment lowered the new bone formation induced by rhBMP-2 initially, as time passed, the negative effect was decreased.     

CD26 Immuno-Expression and Periodontal Disease Progression

Immunological mechanisms participate in the pathogenesis of human chronic inflammatory periodontal disease (CIPD). Human CD4⁺ lymphocytes express functionally heterogeneous profiles of cytokine production. CD26 is an integral membrane glycoprotein, that is, a marker of Th1-like cytokine development. The purpose of the present study was to compare the immuno-expression of CD26 receptor in periodontal sites with and without clinical attachment loss (CAL). Five patients with rapidly progressingperiodontitis and one with juvenile periodontitis were investigated. Each patient presented at least one site with and without CAL. Ten sites with CAL and nine without any CAL were biopsied, followed by the immunohistochemical identification of the CD26 receptor using the MIB-DS2/7 antibody. The resultsdemonstrated that the percentage of positive cells for this antigen in the periodontal sites with CAL was not significantly different from those without attachment loss. Therefore, Th1 cell impairment may not be directly involved with periodontal attachment loss.     

Increased salivary levels of 8-hydroxydeoxyguanosine may be a marker for disease activity for periodontitis

Background: 8-hydroxydeoxyguanosine (8-OHdG) is commonly used as a marker to evaluate oxidative DNA damage in disorders including chronic inflammatory diseases such as inflammatory periodontal pathologies. In the current study we hypothesized that the level of 8-OHdG in saliva increases by the periodontal destruction severity determined by clinical parameters as clinical attachment level (CAL). Materials and methods: A cross-sectional study was conducted on a sum of 60 age gender balanced; chronic periodontitis (CP) (n = 20), chronic gingivitis (CG) (n = 20) and healthy (H) (n = 20) individuals. Clinical periodontal parameters and salivary 8-OHdG levels were evaluated. Results: The mean 8-OHdG level in the saliva of the CP group was significantly higher than H and CG groups (p < 0.001). Statistically significant correlation was only observed between the salivary levels of 8-OHdG and age (p < 0.05), probing depth (PD) and CAL (p < 0.001) in CP group. However, when CP patients were classified according to their CAL levels (CAL≥ 3 mm (n = 11) and CAL<3 mm (n = 9)) statistically significant correlation was only observed between the salivary levels of 8-OHdG and CAL≥ 3 mm patients (p < 0.001). Conclusion: We suggest that elevated salivary levels of 8-OHdG may be a marker for disease activity and it may reflect indirectly disease severity parameters such as CAL.     

低能量激光对2型糖尿病合并慢性牙周炎患者血糖代谢指标及超敏C反应蛋白的影响

目的 观察低能量激光疗法（LLLT）对2型糖尿病合并慢性牙周炎（DMCP）患者牙周临床指标、血清超敏C反应蛋白（hs-CRP）和血糖代谢指标的影响,探讨低能量激光的干预疗效.方法 选择90例DMCP患者,随机分为A组（基础治疗）、B组（基础治疗＋LLLT）及C组（对照组）3组,于治疗前、治疗后3个月时分别检测3组患者牙周指数（牙周探诊深度（PD）、临床附着丧失（CAL）、龈沟出血指数（SBI））、hs-CRP、糖化血红蛋白（HbA1c）及空腹血糖（FPG）水平,并分析、比较其变化.结果 治疗后A、B两组的PD、CAL、SBI及hs-CRP均有所改善,其差异有统计学意义（P＜0.05）,其中B组效果更为显著（P＜0.01）;A、B两组HbA1c、FPG水平呈下降趋势,其中B组差异有统计学意义（P＜0.05）.结论 LLLT对于DMCP患者可显著控制其牙周炎症、降低血清hs-CRP水平及改善血糖水平,并预防糖尿病并发症的发生.     

Periodontal infections and community-acquired pneumonia: a case–control study

The aim of this study was to evaluate if the presence of periodontal infections (PI) is associated with community-acquired pneumonia (CAP) in a group of patients admitted to a hospital. A total of 140 patients were enrolled in this case–control study, with 70 patients having CAP (case group) and the other 70 patients diagnosed with other systemic diseases (control group). A periodontal examination was carried out to assess pocket probing depth (PPD), clinical attachment loss (CAL), bleeding on probing (BOP), and presence of bacterial plaque (BP). CAL and BOP showed higher scores in the case group over the control group. They were, respectively, 3.16?±?2.43 mm and 0.33?±?0.24 % for the case group, and 1.99?±?2.23 mm and 0.25?±?0.24 % for the control group (p?<?0.05). High scores for BP were observed in both groups (case: 97.1 %; control: 98.6 %, p?=?1.0000). Chronic periodontitis (CP) was more frequent in patients with CAP (case: 61.4 %; control: 41.4 %). The presence of moderate or severe CP increased the risk for CAP [odds ratio (OR)?=?4.4, 95 % confidence interval (CI)?=?1.4–13.8], even when adjusted for age, ethnicity, gender, and smoking. Moderate and severe chronic periodontitis were associated with CAP in this study.     

Association between salivary levels of chromogranin A and periodontitis in older Japanese

The relationship between periodontitis and stress-related hormones is poorly understood. In this cross-sectional study we investigated the associations between the stress-related hormone, chromogranin A (CgA) and periodontitis in healthy community-dwelling elderly subjects aged 60 years old and older. A total of 171 subjects (85 males, 86 females; mean age of 68.4 +/- 4.46 (SD) years old) participated, all of whom were living independently. Stimulated whole saliva samples were collected and CgA levels were determined, while a medical questionnaire regarding medical conditions and lifestyle was also administered. Clinical examinations included probing depth (PD), bleeding on probing (BOP), and clinical attachment loss (CAL). When the subjects were divided into two groups based on periodontitis severity, the salivary CgA levels were significantly higher in subjects with severe PD or CAL. Multiple regression analysis showed that higher CgA level was significantly associated with greater numbers of teeth with severe PD or CAL, after adjusting for confounding variables. In this first known report of the association between CgA level and periodontitis, our results suggest a close relationship between the extent and severity of periodontitis and salivary level of CgA in healthy elderly subjects.     

牙周基础治疗对慢性牙周炎患者非刺激性全唾液、龈沟液及血清中基质金属蛋白酶-9水平的影响

目的 评估慢性牙周炎患者经牙周基础治疗前后的非刺激性全唾液、龈沟液及血清中基质金属蛋白酶-9 （MMp-9）水平,探讨其作为牙周炎诊断及预后标志物的可能性.方法 酶联免疫吸附试验（ELISA）检测20名牙周炎患者治疗前、后及20名健康人非刺激性全唾液、龈沟液及血清中MMP-9的水平,并记录牙周袋探诊深度（PD）、临床附着丧失（CAL）和出血指数（BI）.结果 ①除CAL外,经牙周基础治疗6周后慢性牙周炎患者的临床指标明显改善[CAL治疗前（5.50±1.97） mm,治疗后（5.50±1.97） mm,P=1.000;PD治疗前（7.05±1.81） mm,治疗后（4.23±1.06） mm,P=0.000;BI治疗前3.75±0.44,治疗后0.20±0.41,P=0.000）;②治疗后非刺激性全唾液、龈沟液及血清中MMP-9水平明显降低,与治疗前相比差异具有统计学意义[非刺激性全唾液MMP-9水平治疗前（22.89±5.28）ng/mL,治疗后（18.11±7.19） ng/mL,P=0.003;龈沟液MMP-9水平治疗前（41.80±2.90） ng/mL,治疗后（35.71±4.49） ng/mL,P=0.000;血清MMP-9水平治疗前（6.67±5.318） ng/mL,治疗后（2.47±2.713） ng/mL,P=0.004];③除血清外,牙周炎患者治疗前后的非刺激性全唾液和龈沟液中MMP-9水平仍高于健康对照组,其差异有统计学意义[非刺激性全唾液水平为（6.78±3.02）ng/mL,龈沟液为（30.20±3.64） ng/mL,与治疗前后比较P=0.000;健康对照组血清MMP-9水平（1.18±0.88） ng/mL,与治疗前、后比较P =0.004、P=0.055].结论 非刺激性全唾液中MMP-9的表达水平可能成为慢性牙周炎的检测指标之一,可能为临床诊治提供参考依据.     

外用重组人碱性成纤维细胞生长因子 在牙周炎中的应用效果

目的 探究外用重组人碱性成纤维细胞生长因子（rh FGF）在牙周炎治疗中的应用效果。方法 选取2018年1月~2019年1月在我院就诊的牙周炎患者100例,随机分为对照组和观察组,每组50例。对照组采用基础疗法进行治疗,观察组在基础疗法的基础上给予外用重组人碱性成纤维细胞生长因子进行治疗。比较两组治疗后不同时间点的龈沟出血指数（SBI）、牙周探诊深度（PD）、临床附着丧失（CAL）、炎症因子和治疗有效率。结果 两组治疗3周、6周的SBI、PD和CAL与治疗前比较均有所改善,治疗6周的改善程度高于治疗3周,差异具有统计学意义（P＜0.05）;观察组治疗3周、6周的SBI、PD和CAL均优于对照组,差异具有统计学意义（P＜0.05）。两组治疗3周、6周的IL-1β、IL-8和IL-17与治疗前比较均降低,治疗6周的IL-1β、IL-8和IL-17均低于治疗3周,差异具有统计学意义（P＜0.05）;观察组治疗3周、6周的IL-1β、IL-8和IL-17均低于对照组,差异具有统计学意义（P＜0.05）。观察组治疗总有效率高于对照组（90.00% vs 62.00%）,差异具有统计学意义（P＜0.05）。结论 rh FGF治疗牙周炎患者,能够改善龈沟出血指数,减少牙周探诊深度、临床附着丧失,减低炎性因子,提高牙周组织的愈合速度。     

Whole-body vibration and resistance exercise prevent long-term hindlimb unloading-induced bone loss: independent and interactive effects

Skeletal unloading induced by disuse or immobilization causes a decrease in bone mass and strength. We investigated the relationship between whole-body vibration (WBV) and resistance exercise (RE) in preventing bone loss induced by 8-week hindlimb unloading in young male rats. Sixty male Wistar rats were assigned randomly to 6 groups: age-matched control group (CON, n?=?10), hindlimb unloading group (HU, n?=?10), hindlimb unloading?+?standing group (HU?+?ST, n?=?10), hindlimb unloading?+?WBV group (HU?+?WBV, n?=?10), hindlimb unloading?+?RE group (HU?+?RE, n?=?10) and hindlimb unloading?+?WBV?+?RE group (HU?+?WBV?+?RE, n?=?10). After 8-week hindlimb unloading, micro-CT scanning and three-point bending test were performed in the femur. Sera were collected for analysis of bone formation and resorption markers. Compared with HU group, WBV, RE and the combination of WBV and RE (WBV?+?RE) significantly improved (P??0.05). WBV had no effects on biomechanical properties of the femur diaphysis (P?>?0.05). RE and WBV?+?RE significantly increased maximum load and cross-sectional moment of inertia of the femur diaphysis in hindlimb unloading rats (P?相似文献   

EBV and CMV in chronic periodontitis: a prevalence study

Periodontitis is an infectious disease involving specific bacteria and viruses. Herpesviruses believed to play roles in it. The present study examines the presence of Epstein-Barr virus (EBV) and cytomegalovirus (CMV) in subgingival and supragingival plaque of 61 patients with chronic periodontitis and 40 healthy controls. A nested polymerase chain reaction method was used. The clinical parameters, clinical attachment level (CAL), probing depth (PD) and bleeding on probing (BOP) were examined. Prevalence of EBV- 1, EBV-2 and CMV were 73.8%, 4.9% and 59%; respectively. There was no association between the presence of EBV-1, EBV-2 and CMV with bleeding on depth.     

白细胞介素17A在慢性牙周炎和类风湿性关节炎相关性中的研究

目的 探讨白细胞介素-17A（IL-17A）在慢性牙周炎（CP）和类风湿性关节炎（RA）两者间的相关性.方法 按纳入标准选择85名受试者分为四组：①CP组20例;②RA组23例;③RA伴CP组26例;④HP组16侧;记录牙周袋探诊深度（PD）,临床附着丧失（CAL）和出血指数（BI）,收集其晨起空腹血清并用滤纸条法收集受试者龈沟液样本,采用酶联免疫吸附试验法（ELISA）测定血清及龈沟液中IL-17A的水平.结果 RA＋CP组中血清IL-17A水平（2216.0±1520.87）pg/mL与RA组[（851.59±975.81） pg/mL]、CP组[（1039.7±1004.83） pg/mL]和HP组[（209.48±50.02） pg/mL]差异有统计学意义,RA组和CP组中血清IL-17A水平分别与HP组的差异有统计学意义（P＜0.05）,而龈沟液中的IL-17A水平在HP组[（356.75±69.07） pg/mL],RA组[（381.08±79.48） pg/mL],CP组[（397.82±108.53） pg/mL]以及RA＋CP组[（414.71±103.09） pg/mL]间呈现升高趋势,但无统计学差异（P＞0.05）.结论 IL-17A可能在慢性牙周炎和类风湿性关节炎相关性的研究中具有一定的意义.