米诺环素局部用药对牙周炎患者龈沟液中超氧化物歧化酶(SOD)活性的影响

目的比较应用米诺环素软膏治疗前后牙周炎患者临床指标及龈沟液中超氧化物歧化酶(SOD)活性的变化.方法成人牙周炎患者30例,分成2组,实验组常规牙周治疗+米诺环素软膏,对照组仅给予常规牙周治疗,记录两组治疗前后牙龈指数(GI)、牙周探诊深度(PD)、附着丧失(AL);并用放射免疫法检测两组龈沟液SOD活性.结果(1)治疗后,试验组牙龈指数(GI)、牙周探诊深度(PD)均明显低于对照组(P＜0.05,P＜0.01);而治疗前两组比较,上述指标未见显著差别.(2)治疗前,实验组龈沟液SOD活性与对照组比较无显著差别(P＞0.05),而治疗后,实验组龈沟液SOD活性显著高于对照组(P＜0.05).结论米诺环素局部用药可显著降低牙周炎患者牙龈指数(GI)、牙周探诊深度(PD)并提高龈沟液SOD活性.     

盐酸米诺环素软膏对慢性牙周炎患者的疗效

目的:探讨盐酸米诺环素软膏对慢性牙周炎患者牙周指数、炎症因子水平的影响.方法:收集本院2018年4月至2020年4月收治的160例慢性牙周炎患者进行双盲法分组,对照组患者(n=80)采用生理盐水冲洗联合碘甘油流入治疗,1次?w-1,实验组患者(n=80)合用盐酸米诺环素软膏置入的方式治疗,2次?w-1,治疗1 m后比较...     

盐酸米诺环素软膏治疗中重度慢性牙周炎的临床疗效

目的 探讨盐酸米诺环素软膏治疗中重度慢性牙周炎的临床疗效。方法 选取2017年2月~2019年3月我院口腔科收治的中重度慢性牙周炎患者136例,随机分为观察组和对照组,各68例。对照组予碘甘油治疗,观察组以盐酸米诺环素软膏治疗。比较两组出血指数（BI）、牙龈指数（GI）、探诊深度（PD）、牙齿松动度（TM）及临床效果。结果 观察组PD、BI、GI、TM分别为（2.31±0.21）mm、（0.78±0.23）分、（0.66±0.18）分、（0.17±0.08）mm,均低于对照组的（3.20±0.43）mm、（1.22±0.36）分、（1.37±0.37）分、（0.30±0.15）mm,差异有统计学意义（P＜0.05）;观察组治疗总有效率高于对照组,差异有统计学意义（P＜0.05）。结论 对中重度慢性牙周炎患者局部予以盐酸米诺环素软膏疗效显著,可有效降低患者牙龈出血及牙齿松动情况。     

盐酸米诺环素软膏治疗重度慢性牙周炎临床疗效评价

目的 评价盐酸米诺环素软膏治疗重度慢性牙周炎临床疗效.方法 40例重度慢性牙周炎患者随机平分为两组,对照组采用盐酸克林霉素治疗,观察组采用盐酸米诺环素治疗.结果 两组患者的GI、SBI 、PD与治疗前比较显著下降(P<0.05),观察组与对照组比较有显著性差异(P<0.05).两组不良反应情况对比无显著性差异(P>0.05).结论 用盐酸米诺环素处理牙周炎病变牙根面,可促进牙周膜细胞在牙根面的附着和增殖,使根面恢复生物相容性,提高牙周炎的治疗效果,不良反应少,值得临床推广应用.     

龈沟液IL-1β、ICAM-1水平与慢性牙周炎患者米诺环素治疗疗效的相关性

目的:分析龈沟液白细胞介素-1β(Interleukin-1β,IL-1β)、细胞间黏附分子-1(Intercellular cell adhesion molecule-1,ICAM-1)水平与慢性牙周炎(Chronic periodontitis,CP)患者米诺环素疗效的关系.方法:选择2019年1月至2021年3...     

牙周炎患者龈沟液中细胞因子水平的变化

研究牙周炎患者龈沟液 (GCF)中细胞因子水平的变化及其临床意义。用RIA检测了成人牙周炎组 (AP组 ) 16例 2 6个牙 ,快速进展型牙周炎组 (RPP组 ) 19例 2 9个牙和牙周健康者对照组 (H组 ) 2 4名 31个牙的GCF中白介素 1β(IL - 1β)、肿瘤坏死因子α(TNFα)、白介素 6 (IL - 6 )和转化生长因子α(TGFα)含量的变化并记录受检牙的牙周破坏指数PD、AL。结果表明 :AP组、RPP组患者GCF中IL - 1β、TNFα、IL - 6水平明显高于对照组(P <0 .0 5和P <0 .0 1)且与PD、AL呈显著正相关 (P <0 .0 1) ;TGFα 水平明显低于对照组 (P <0 .0 1) ,与PD、AL呈显著负相关 (P <0 .0 1)。提示IL - 1β、TNFα、IL - 6、TGFα 是参与牙周炎牙槽骨吸收破坏的最重要的细胞因子     

齿痛消炎灵联合米诺环素软膏治疗慢性牙周炎的研究

目的:探讨齿痛消炎灵联合米诺环素软膏治疗慢性牙周炎效果.方法:选取2019年10月～2020年10月本院门诊接收的82例慢性牙周炎患者为研究对象,用随机数字表法分为对照组和观察组,各41例.两组均进行常规基础治疗,在此基础上,对照组用米诺环素软膏治疗;观察组联合齿痛消炎灵治疗,两组均连续治疗4周.比较两组患者总有效率、...     

牙周炎患者龈沟液肿瘤坏死因子水平的变化

ｐ＜０．０１；与ＡＰ比较，△ｐ＜０．０１，△△ｐ＜０．０５讨论ＴＮＦａ是由激活的巨噬／单核细胞系统所产生的一种内源性调节因子，具有介导抗肿瘤及调节机体的免疫功能，并参与炎症病变的发展过程，ＴＮＦａ是牙周炎病变过程中与牙槽骨吸收有来切关系的细胞因子──破骨细胞激活因子之一［１，４］，它能活化破骨细胞，刺激表２牙周炎患者ＧＣＦ中ＴＮＦａ水平与ＰＤ、ＡＬ的相关系数注：与Ｈ比较，ｐ＜０．０１骨吸收，造成牙槽骨的破坏，本文的检测结果表明，ＡＰ、ＲＰＰ、ＪＰ患者ＧＣＦ中ＴＮＦａ水平明显高于正常人（Ｐ＜０．０１），且与牙周破坏槽数ＰＤ、ＡＬ呈显著正相关（Ｐ＜０．０１），说明在牙周炎的发展过程中，ＧＣＦ中升高的ＴＮＦａ可导致牙槽骨吸收破坏，形成牙周袋；而且ＧｃＦ中ＴＮＦａ水平越高，临床上牙周破坏程度就越严重。提示ＴＮＦａ是参与牙槽骨吸收破坏的重要细胞因子之一［１］．同时，本文的检测结果还表明，ＲＰＰ、ＪＰ患考的牙周破坏指数高于ＡＰ患者（Ｐ＜０．０５），ＧＣＦ中ＴＮＦａ水平也是著高于ＡＰ组（Ｐ＜０．０１），而ＲＰＰ组与ＪＰ组间则无差异（Ｐ＞０．０５），说明各型周炎的牙周破坏程度存在着差异，这可能与各型牙周炎的主要致病压氧菌各     

盐酸米诺环素软膏与甲硝唑对种植体周围炎抑制作用的 临床研究

目的 对比局部运用盐酸米诺环素软膏和口服甲硝唑治疗种植体周围炎的临床效果。方法 选取2016年3月~2018年5月来我院口腔门诊就诊的种植体周围炎患者36例,在对种植体进行龈上洁治、龈下刮治后,随机分为盐酸米诺环素软膏组和口服甲硝唑组,每组18例。盐酸米诺环素软膏组局部运用盐酸米诺环素软膏治疗,口服甲硝唑组采用口服甲硝唑治疗。对比基线、治疗后4周和8周改良菌斑指数（mPLI）、改良龈沟出血指数（mSBI）和探诊深度（PD）参数。结果 治疗后4周及8周,两组患者mPLI、mSBI以及PD参数均低于基线,差异具有统计学意义（P＜0.05）;盐酸米诺环素软膏组治疗后4周及8周的mPLI、mSBI以及PD参数均低于口服甲硝唑组[4周:mPLI（0.69±0.47）vs （1.46±0.33）,mSBI（0.62±0.41） vs （1.16±0.38）,PD（2.47±0.37）mm vs （3.52±0.54）mm;8周:mPLI（0.98±0.39）vs（1.52±0.30）,mSBI（0.86±0.45）vs（1.26±0.43）,PD（2.93±0.50）mm vs （3.46±0.46）mm],差异具有统计学意义（P＜0.05）。结论 盐酸米诺环素软膏和甲硝唑治疗种植体周围炎有确切的疗效,应用盐酸米诺环素软膏效果明显优于口服甲硝唑,局部使用药物可以实现短期的大幅优化。     

Cathepsin B in gingival crevicular fluid of adult periodontitis patients: Identification by immunological and enzymological methods

Cathepsin B (EC 3.4.22.1), a typical lysosomal cysteine proteinase was identified immunologically with anti-human cathepsin B antibody in inflammatory exudate, gingival crevicular fluid (GCF) of adult periodontitis patients. The sensitive enzyme immunoassay (EIA) system initially developed, was rarely influenced by the presence of endogenous, cysteine proteinase inhibitors, cystatin(s), indicating that it is possible to quantify the gross amount of cathepsin B including free enzyme forms and enzyme-inhibitor complex forms using this EIA system. The cathepsin B levels in, GCF as determined by EIA and the activity measured with Z-Arg-Arg-MCA showed positive and significant correlation with various clinical parameters. Immunoblotting analysis revealed that the molecular form was a 29 kDa mature enzyme. More than 95% of Z-Arg-Arg-MCA hydrolytic activity in each GCF sample was inhibited by CA-074, specific inhibitor of cathepsin B. These results strongly suggested that the gross amount of cathepsin B in GCF as well as its activity level is closely associated with the severity of the disease and that cathepsins B play an important role in the pathogenesis of periodontitis.accepted by W. B. van den Berg     

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     

Non-invasive monitoring of gingival crevicular fluid for estimation of blood glucose level

Development of a non-invasive method for measuring the blood glucose level is an urgent necessity, and putting such a method into practical use will enable some of the physical and mental stress that patients with diabetes have to endure to be removed. To realise a non-invasive blood glucose monitor, the gingival crevicular fluid (GCF) was measured. A GCF-collecting device was developed that was designed to be disposable, biocompatible and small enough to be inserted in the gingival crevice for collection of a sub-microlitre sample of GCF. Also, a high-sensitivity glucose testing tape incorporated in the device was developed. Red laser light in a portable optical device measured the colour density of the testing tape. Standard glucose solutions were used to investigate the measurement accuracy of the GCF glucose monitor and showed a correlation coefficient of R=0.99 (n=20) between the optical density and the glucose levels. The GCF glucose monitor was evaluated on healthy Swedish and Japanese adults (n=10) and both GCF glucose levels (GCFLs) and blood glucose levels (BGLs) were measured in conjunction with meal loads. The GCFLs were about 1/10-1/560 lower than the BGLs. No difference in the range of GCFLs between the Swedish and the Japanese subjects was observed. Therefore it was concluded that physique, body mass index and life-style, such as dietary habit, did not significantly influence the GCFLs. Further, the correlation coefficients of all the subjects were 0.70 and 0.88 with each group. it was suggested that GCF could be used as a method of non-invasive blood glucose measurement.     

The effect of adjunctive chlorhexidine mouthrinse on clinical parameters and gingival crevicular fluid cytokine levels in untreated plaque-associated gingivitis

Objective and design:  To examine the effectiveness of chlorhexidine mouthrinse (CHX) in addition to daily plaque control on gingival inflammation. Methods:  Fifty gingivitis patients were randomized to CHX or placebo groups. In addition to proper plaque control, CHX group rinsed with CHX, while placebo group rinsed with placebo mouthrinse for 4 weeks. Gingival crevicular fluid (GCF) samples were collected and clinical parameters including plaque index (PI), papillary bleeding index (PBI), calculus index and probing depth (PD) were recorded at baseline and repeated at 4 week. GCF IL-1α, IL-1β, IL-1Ra, and IL-8 levels were determined by ELISA. Results:  Whole mouth clinical parameters were significantly improved in both groups at 4 weeks. CHX group showed greater reduction in the mean PI scores than placebo at 4 weeks (p < 0.05). GCF IL-8 levels of anterior sites significantly reduced in CHX and placebo group at 4 weeks (p < 0.05). GCF IL-1α, IL-1β, IL-1Ra levels remained unchanged at 4 weeks in both groups. GCF cytokine levels of CHX group were similar to those of placebo at 4 weeks. Conclusions:  Within the limitations of this study, CHX mouthrinse as adjuncts to daily plaque control could be useful in management of plaque-associated gingivitis, although ineffective on GCF cytokine levels. Received 13 June 2008; returned for revision 9 July 2008; received from final revision 19 July 2008; accepted by C. Kasserra 19 August 2008     

牙周炎患者龈沟液中白细胞介素-8水平的变化

研究牙周炎患者龈沟液（GCF）中白细胞介素-8（IL-8）的变化及其临床意义。采用RIA检测了成人牙周炎患者（AP组）52例67个牙,快速进展性牙周炎患者（RPP组）23例37个牙和牙周健康对照组（H组）31名49个牙的龈沟液（GCF）中的IL-8水平的变化并记录受检牙的牙周破坏指数PD、AL。结果表明AP组、RPP组患者GCF中IL-8水平明显高于对照组（P〈0.01）且与PD、AL呈显著正相关（P〈0.01）。提示IL-8是参与牙周炎发生发展及其牙周破坏重要的细胞因子之一。     

The relationship between periodontal status and alkaline phosphatase levels in gingival crevicular fluid in men with hypergonadotropic hypogonadism

PURPOSE: The aim of this preliminary study was to determine the possible relationship between alkaline phosphatase (ALP) levels in the gingival crevicular fluid (GCF) and periodontal disease in men with hypergonadotropic hypogonadism (HH). MATERIALS AND METHODS: A total of 41 patients were divided into four groups. 9 with HH and periodontitis (P/HH), 11 with HH and gingivitis (G/HH), 12 with systemically healthy and periodontally healthy (H/C) and 9 with systemically healthy and periodontitis (P/C). The clinical evaluation of patients was based on the following parameters; the plaque index (PI), gingival index (GI), probing depths (PD) and attachment level (AL). The levels of ALP in the GCF were measured by enzyme-linked immunosorbent assay (ELISA). RESULTS: No significant difference could be detected in the mean clinical parameter data between the P/HH and P/C groups (p > 0.05). The periodontitis patients in both groups (P/C and P/HH) had higher mean probing depths than the H/C and G/HH patients (p < 0.001). The concentrations and total amounts of ALP in the GCF were significantly higher in both periodontitis groups compared to healthy and gingivitis groups (p < 0.01). The serum ALP levels were significantly higher in the P/HH group when compared to the other groups (p < 0.001). CONCLUSION: The findings of this study suggested that HH could be implicated as a contributing factor to the progress of periodontal disease.     

Interleukin-1beta level in gingival crevicular fluid of patients with active periodontitis

Previous studies revealed that interleukin-1beta (IL-1beta) was detectable in gingival crevicular fluid (GCF) of patients with periodontitis, and the level was increased in level in gingival tissue extracts of active periodontal disease sites (defined as attachment loss > or = 2.5 mm over the preceding 2 months) compared to inactive sites or healthy sites. The present study evaluated the relationship of IL-1beta level in GCF and periodontal disease status. GCF was collected with Periopaper strips from 34 disease-active and 45 disease-inactive teeth in 11 untreated periodontitis patients and from 60 teeth in 15 healthy control subjects. Disease activity was defined as attachment loss of > or = 2.5 mm in at least one site of a tooth as determined by sequential probing. The absorbed GCF volume was determined using a Periotron 6000 and the crevicular IL-1beta level was determined using IL-1beta monoclonal antibody (Otsuka Pharmaceutical, Japan). IL-1beta was below the detection level of the assay (6 pg/ml) in the healthy control group but was detected in most teeth of the periodontitis group. However, disease-active teeth had higher IL-1beta level (Mann-Whitney U-test, p < 0.05) than disease-inactive teeth (mean total IL-1beta of 5.89 +/- 7.88 pg/tooth and 1.72 +/- 2.28 pg/tooth; mean concentration of 1.6 +/- 2.5 ng/ml and 0.6 +/- 0.83 ng/ml, respectively). The level of IL-1beta showed no correlation with probing depth, but had significant correlation (p < 0.05) with the extent of attachment loss. This study suggests that the level of IL-1beta in GCF may have a predictive value for determining active and inactive periodontal status.     

Role of endotoxin-like contaminants in the apparent anti-inflammatory activity of bovine superoxide dismutase

Bovine CuZn superoxide dismutase (SOD: 1, 3 and 10 mg/kg) dose-dependently reduced carrageenan-induced paw edema in rats when administered intravenously 30 min before irritant injection. However, heat-treated SOD (10 mg/kg) was as effective as native SOD (10 mg/kg) although the enzymic activity was reduced to 9.7%. Examination of the contaminants of the native SOD revealed a fairly large amount of endotoxin-like activity, 47 ng asEscherichia coli endotoxin per mg, and 59.6% of this activity remained after heat treatment. Bovine CuZn SOD (1, 3 and 10 mg/kg), which contained negligible endotoxin-like materials and 1.5 times more enzyme units, had no effect on edema under the same conditions. Furthermore,Escherichia coli endotoxin (10, 100 and 1000 ng/kg) reduced edema dose-dependently. These results suggest that contamination by endotoxin-like materials is responsible for the anti-inflammatory action of the SOD preparation we observed. Hence, the anti-inflammatory action of contaminating endotoxin-like materials may lead to misinterpretation as a protective effect of SOD unless stringent precautions are taken against endotoxin-like contaminants in the SOD under examination.accepted by M. Katori