复发性口疮患者T细胞亚群在中医辩证分型和Lehner分类中的？…

目的 选择１６６例复发性口疮患者按中医实证，虚证分型及Ｌｅｈｎｅｒ分型讨论它们之间外周血Ｔ细胞亚群的变化差异，方法 Ｔ淋巴细胞亚群采用单克隆抗体ＡＰＡＡＰ法检测。结果 实证组，虚证组病人ＣＤ２，ＣＤ４，ＣＤ４／ＣＤ８减少，而ＣＤ８的升高只在实证组有显著差异（Ｐ〈０．０１），在Ｌｅｈｎｅｒ分类中四型的ＣＤ３，ＣＤ４，ＣＤ４／ＣＤ８均减少，而ＣＤ８的升高只在腺周型和白塞氏型才有显著统计学意义（Ｐ〈０．     

口疮中医辨证分型与T细胞亚群的研究

本文对51例口疮患者,按中医辨证分为虚证型(22例)及实证型(29例)。应用抗T淋巴细胞单克隆抗体OKT系列间接免疫荧光法及~3H—TdR掺入法,检测了本病虚、实两证型患者外周血T淋巴细胞亚群的变化及淋巴细胞转化功能。检测结果证实在外周血T细胞亚群中OKT_8~+细胞百分率、实证型及虚证型均高于正常对照组,尤以实证型组最为显著(p<0.01)。在OKT_3及OKT_4组,实证型及虚证型均低于正常对照组,而实证型表现更为明显。而在OKT_4~+/OKT_8~+比值,实、虚两证型均低于对照组(p<0.01)。另外在淋巴细胞转化率方面,实证型明显低于虚证型或正常对照组(p<0.01)。以上结果提示本病实证型及虚证型出现细胞免疫功能失调现象,尤以实证型患者明显。     

帕夫林治疗轻型口疮的疗效观察

目的探讨帕夫林治疗轻型复发性口疮的临床效果和药效机理。方法183例轻型复发性口疮患者分为两组，分别口服帕夫林胶囊、多抗甲素片治疗，观察其治疗效果，并于治疗前、后采用流式细胞术检测患者外周血T淋巴细胞亚群。结果帕夫林治疗组总有效率达80．43％，治疗后CD3＇、CD4＇ CO4/CO8升高，CDg降低，与治疗前比较差异有统计学意义；帕夫林疗效优于多抗甲素。结论采用帕夫林胶囊治疗轻型复发性口疮效果肯定，其机理可能为提高了患者的细胞免疫功能。     

多抗甲素联合肿痛安治疗复发性口疮的疗效观察

目的 :探讨一种治疗复发性口疮的全身用药方法和免疫制剂治疗的理论基础。方法 :13 5例复发性口疮患者接受多抗甲素、肿痛安治疗 ,观察其治疗效果 ,并于治疗前后采用流式细胞术检测患者外周血T淋巴细胞亚群。结果 :多抗甲素联合肿痛安治疗总有效率达 97.78% ,治疗后CD3‘、CD4‘、CD8、CD4/CD8升高 ,CD8降低 ,差异有显著性。结论 :采用多抗甲素联合肿痛安治疗复发性口疮是一种行之有效的治疗方法 ,其机制是提高了患者的细胞免疫功能。     

复发性口疮流式细胞分析T淋巴细胞亚群

目的 :探讨复发性口疮 (RAU)的发生发展与T淋巴细胞的关系 ,为免疫制剂治疗此病提供理论基础。方法 :选择18例临床确诊为RAU患者 ,在发病期采用流式细胞术检测患者外周血T淋巴细胞亚群 ,设健康对照组比较 ,做出相关性分析。结果 :RAU组较对照组CD3 有下降趋势 ,但无统计学意义 ,CD4 下降差异有显著性 ,CD8升高有极显著意义 ,CD4 /CD8比值下降 ,有极显著意义。结论 :RAU患者发病期 ,机体细胞免疫功能处于相对免疫抑制状态。     

齿密螺旋体对小鼠T淋巴细胞亚群的影响

目的 :了解齿密旋螺体对小鼠T淋巴细胞亚群的作用。方法 :采用流式细胞分析术观察齿密螺旋体超声破碎提取物对小鼠模型外周血和脾细胞T淋巴细胞亚群的影响。结果 :注射齿密螺旋体超声破碎提取物的小鼠外周血和脾细胞中的CD4 + T细胞阳性百分数明显下降 (P <0 .0 1) ,CD8+ T细胞则明显升高 (P <0 .0 1) ,CD4 + /CD8+ T细胞比值显著降低 (P <0 .0 1)。结论 :齿密螺体超声破碎提取物具有激活CD8+ T细胞活性的功能 ,使其数目增多 ,同时造成CD4 + T细胞百分数相对下降 ;改变CD4 + 、CD8+ 两T淋巴细胞亚群间的平衡     

沙利度胺对复发性阿弗他溃疡患者外周血淋巴细胞亚群的影响

目的：观察沙利度胺对复发性阿弗他溃疡（ RAU）患者外周血淋巴细胞亚群的影响及治疗疗效。方法：选择轻型RAU患者（轻型RAU组）85例,健康对照组80例,随访观察服用沙利度胺25 mg／d治疗轻型RAU的疗效;同时比较健康对照组,轻型RAU组治疗前后外周血淋巴细胞亚群检测结果。结果：和健康对照组相比,轻型RAU患者CD4＋T淋巴细胞数目减少,CD8＋T淋巴细胞增多,淋巴细胞亚群比例失调;经沙利度胺治疗后,轻型RAU患者淋巴细胞亚群比例异常改善,同时患者溃疡间歇期明显延长,溃疡数目明显减少,差异均具有统计学意义（P＜0．05）。结论：轻型RAU患者存在外周血T淋巴细胞亚群比例异常,沙利度胺可有效调节CD4＋、CD8＋T淋巴细胞亚群比例,延长溃疡间歇期,减少溃疡发作,临床疗效满意。     

Sjgren综合征患者外周血T细胞亚群测定

本文采用间接免疫萤光法,用抗人T细胞亚群单克隆抗体,测定12例SS患者外周血T淋巴细胞亚群,结果发现,与正常对照者相比,CD3降低,CD4升高,CD8升高,CD4/CD8降低,经过统计学处理,CD3两组间有显著差别(P<0.05),CD4两组间无显著差别(P>0.05),CD8两组有非常显著差别(P<0.01),CD4/CD8两组间有非常显著差别(P<0.01).     

曲安奈德和帕夫林联合治疗老年糜烂型OLP疗效观察

目的：探讨局部注射曲安奈德配合口服帕夫林治疗老年人糜烂型OLP的疗效。方法：对34例老年糜烂型OLP患者用药治疗前后检测T淋巴细胞亚群的变化及观察临床疗效指标。结果：患者经治疗后临床有效率91.18%,T淋巴细胞亚群检测CD3＋、CD4＋T细胞升高（P〈0.01）,CD8＋T细胞下降（P〈0.01）,CD4＋/CD8＋治疗后上升（P〈0.01）。结论：口腔糜烂型OLP经治疗后,临床疗效肯定,血中T淋巴细胞亚群状态有明显改善。     

复发性阿弗它溃疡患者外周血中CD4+/CD45RA+细胞亚群的表达及意义

目的探索复发性阿弗它溃疡(recurrent aphthous ulcer,RAU)患者T淋巴细胞亚群CD4+/CD45RA+细胞的数量变化.方法应用流式细胞术检测RAU患者及正常对照人群CD4+/CD45RA+亚群细胞的数量.结果 RAU患者的CD4+/CD45RA+细胞数约占CD4+细胞总数的14.24%,正常对照约占总数的21.56%,两者有显著性差异(P＜0.01).结论 RAU患者外周血T淋巴细胞亚群中CD4+/CD45RA+细胞量减少,提示CD4+/CD45RA+细胞可能与RAU的发病有关.     

Volatile compounds in air and oral saliva in healthy people, and in periodontitis and gingivitis patients

21 healthy persons, 7 patients with chronic generalized periodontitis and 4 patients with chronic generalized gingivitis aged between 18 and 42 years were examined. Air from the oral cavity was collected with a special device; liquid samples were collected by washing the oral cavity with sterile water. Chemical compounds of the air and the washed liquid were analyzed by chromato-mass-spectrometry, gas-adsorption and gas-liquid chromatography. The content of dimethyl sulphide, dimethyl disulphide increased in the oral air and such volatile short chain fatty acids (VSCFA) as butyrate, propionate, acetate rose, but their aldehydes (butyraldehyde, acrolein, acetaldehyde decreased in oral fluid during periodontitis. The concentration of these compounds were found to be between the levels in control persons and during periodontitis. The content of pentane decreased in oral air. That depended on the intensity of inflammation and vessel disturbances. The results suggest that VSCFA produced by Porphyromonas, Prevotella, Fusobacterium and other periodontopathic bacteria, penetrate the oral mucosa and severely harm the periodontal tissue. The increase of dimethyl sulphide contributed to oral malodor during periodontal inflammation.     

Plasminogen activators in normal and malignant oral epithelium in vivo and in vitro.

Urokinase-type (uPA) and tissue-type (tPA) plasminogen activators were identified by fibrinolytic autography in the sulcus epithelium of human gingival mucosa but not in the orthokeratinized gingival epithelium. Fibrinolytic activity was present only over blood vessels in frozen sections of oral squamous cell carcinomas, the malignant epithelial cells showing no plasminogen activator activity. Plasminogen activators could not be demonstrated in either the sulcus or gingival epithelium by immunofluorescence, but both uPA and tPA were found in occasional squamous carcinoma cells. Fibrinolytic activity of culture fluids from epithelial explants grown in vitro from human gingival mucosa showed marked variation, but activity was much higher in the culture supernatants than in the cell lysates. Fibrinolytic activity of culture fluids from epithelial explants of squamous cell carcinomas was low both in supernatants and lysates. Zymogram overlays of sodium dodecyl sulphate-polyacrylamide electrophoretic gels from culture supernatants showed that the low fibrinolytic activity of culture supernatants of oral squamous cell carcinomas was due to the associated presence of plasminogen activator inhibitors. The fibrinolytic activity in the zymogram was due predominantly to uPA but some lysis was due also to tPA.     

Dental and periodontal health in Finnish adults in 2000 and 2011

Objective: We assessed dental and periodontal health in adults aged ≥30 years living in southern and northern Finland as part of the Health 2000/2011 Surveys (BRIF8901).

Material and methods: Clinical findings in 2000 (n?=?2967) and 2011 (n?=?1496) included the presence of teeth and number of teeth with caries, fillings, fractures or periodontal pockets.

Results: Edentulousness decreased in all age groups. The prevalence of those with no caries increased from 67% to 69% in men and from 80% to 85% in women, and of those with no periodontal pocketing from 26% to 30% in men and from 39% to 42% in women. In 2011, the mean number of decayed teeth was 0.8 in men and 0.3 in women, and the corresponding mean numbers of teeth with deepened periodontal pockets 5.6 and 3.7. The gender difference had levelled concerning edentulousness, number of teeth and DMF teeth, but still existed in the occurrence of caries and periodontal pocketing.

Conclusion: The findings were in line with other population-based reports in the 2000s. However, periodontal health in Finland seems not to be as good as in many European countries and in the USA.     

HIV in Indonesia and in neighbouring countries and its social impact

HIV incidence is still increasing in parts of Indonesia and in several Asian Countries. New cases of HIV in Indonesia have risen from 7,000 per year in 2006 to 48,000 per year in 2017. In spite of this increase, the number of newly diagnosed cases of AIDS has decreased from a peak of over 12,000 in 2013 to a little over 9,000 in 2017. The mean prevalence of HIV in Indonesia is 0.41% but there is a ten‐fold difference in the prevalence in different regions with the highest in Papua (5%). Women represent over 35% of new infections per year and of the total (640,000) in Indonesia. Over 50% of HIV diagnoses are made when patients already have AIDS. Stigma and discrimination are still strong barriers in prevention and treatment but also there are considerable challenges in access to appropriate anti‐retroviral therapy. There is a need for further investment in HIV Programs in Indonesia so that prevention can be enhanced, and diagnosis made at an earlier stage. Health Professionals including dentists should be readily willing to provide joint prevention efforts and care to people at risk and with HIV and other infectious diseases to help meet the WHO aims of 2030. Public health programmes are needed to make certain that the general public is aware of HIV testing and the role of dental healthcare workers in facilitating this, thereby further normalising attitudes to people living with HIV.     

Caries status and microbial conditions in children in 1973 and 1984

Abstract — In 1973 all 9–12-yr-old children in a county in Sweden were examined with regard to caries prevalence, salivary Streptococcus mutans and lactobacilli. Eleven years later the same parameters were analyzed in 250 randomly selected children of the same age and from the same county. Both the number ofcariogenic microorganisms and the caries prevalence were significant-ly lower in 1984 than in 1973 (P<0.001). The lower number of S. mutans and lactobacilli could be due to several EBctors and is probably one of the reasons for the low caries prevalence in the children in the present study.     

Oral microbiota in smokers and non-smokers in natural and experimentally-induced gingivitis

Abstract. The present study primarily aimed at investigating the oral microbiota in smokers and non-smokers with established gingivitis and monitoring its composition during experimental gingivitis. Secondly, it aimed at examining whether the composition of the microbiota is associated with different levels of gingival inflammation during this experimental gingivitis trial. For this purpose, 25 non-dental university students with gingivitis were recruited. 11 subjects were smokers and 14 were non-smokers. After achieving gingival health, they entered a 14-day experimental gingivitis trial. Plaque and bleeding were assessed before entering into the study (intake), at day 0. day 5 and at day 14 of the experiment. Microbiological samples from mucosal sites and dental plaque (taken at intake, day 0, and day 14) were analysed for the presence of Actinomyces species. Actinobacillus actinomycetemcomitans, Bacteroides forsythus, Campylobacter rectus, Fusobacterium nucleatum, Peptostreptococcus micros. Porphyromonas gingivalis, Prevotella intermedia and Streptococcus species. At day 14 of the experimental period, the level of plaque formation was not different between smokers and nonsmokers, but bleeding scores were lower in smokers than in non-smokers (15% and 30%) respectively, p= 0.01). The change from natural gingivitis to a state of gingival health and a subsequent change from gingival health to experimentally induced gingivitis was accompanied by quantitative alterations in the cultivable microbiota in both groups. Changes were most prominent in the transition from gingival health to experimental gingivitis and were found in dental plaque for Actinomyces species, C. rectus, F. nucleatum, and P. intermedia. Within the group of non-smokers, a distinction was made between subjects with a‘weak’or 'strong’inflammatory response. No relationship with a single bacterial species could be established which would likely explain the differences in levels of inflammation. It is concluded that differences in response to experimental gingivitis are not caused by major differences in the composition of the oral microbiota.