与人类免疫缺陷病毒感染和艾滋病相关的口腔疾病的研究进展

艾滋病（AIDS）在口腔的表现是艾滋病诊断的重要指标之一。多数人类免疫缺陷病毒（HIV）感染患者都有口腔表现，但口腔表现却往往被忽视。目前与HIV感染密切相关的主要口腔疾病有口腔黏膜病、牙周病、涎腺疾病及龋病等。本文对HIV感染和艾滋病相关的口腔疾病的研究进展作一综述。     

HIV感染与牙周疾病相关性的研究进展

艾滋病(AIDS)是由感染人类免疫缺陷病毒(HIV)引起的人体免疫功能缺陷疾病,近年来,与艾滋病相关的慢性疾病的研究引发了学者的广泛关注。人们对与HIV相关的慢性病及其相互关系的研究日益增多。HIV感染后很长一段时间没有明显的临床症状,但多数患者在早期就可能出现各种口腔病损,如白色念珠菌病、口腔毛状白斑、HIV相关性牙周病变、卡波西肉瘤以及非霍奇金淋巴瘤等,其中HIV相关性牙周病变较常见。因此,通过牙周组织检查对艾滋病的早期发现具有重要意义。本文将从HIV感染患者的牙周病变表现以及艾滋病与牙周病变发展的关系予以综述。     

Oral Hygiene and dental student's knowledge, attitude and behaviour in managing HIV/AIDS patients

Abstract:  The human immunodeficiency virus (AIDS) and the acquired immunodeficiency syndrome (AIDS) have profoundly affected every aspect of the public health sector. The possibility of HIV transmission in the oral health care setting is very rare. Nonetheless, the oral health care environment has become a helpful setting for early detection, as most lesions of HIV infection present orally during the first stages of the disease. Willingness to treat patients with HIV/AIDS appears to be related to knowledge of the disease process, its oral manifestations and modes of transmission, thus influencing health workers' attitudes and behaviour towards management of HIV/AIDS patients. This study assessed the level of management of HIV/AIDS patients amongst dental and oral hygiene students at the University of the Western Cape Dental faculty. Student's knowledge of HIV/AIDS, their behaviour and attitude in treating HIV/AIDS patients, the precautionary measures practiced and their perceptions of curriculum preparation on HIV/AIDS were assessed. Data were collected by means of a self- administered questionnaire. The results indicated that students' knowledge on HIV/AIDS generally increased as they progressed throughout their curriculum but their utilization of all barrier techniques for infection control and clinical protocol, lacked consistency and compliance. Given the fact that the possibility of transmission of HIV/AIDS does exist within the dental setting, it is important that supervisors reinforce universal precautions. Clinical application of these precautions has a direct impact on the spread of the disease.     

Infektionen der Mundschleimhaut (Teil I)

Infections of the oral mucosa have become important with respect to acquired immunodeficiency syndrome (AIDS), particularly as opportunistic infections. In the first part of this overview the epidemiologic, clinical and therapeutical aspects of the HIV infection are addressed. By the end of 1998, WHO had registered 2 million cases of AIDS globally and 33.4 million HIV infections were estimated. Every day 16,000 new infections occur worldwide. Sub-Saharan Africa is the region which has been affected most. By the end of 1998, 18,000 cases of AIDS were registered in Germany, with an estimated 50,000–-60,000 HIV infections. The majority of new infections was registered among homosexual men; however, heterosexual transmissions are increasing. Antiretroviral combination therapies had an impact on the clinical course of HIV infection, affecting both mortality and morbidity. The effectiveness of antiretroviral therapy is monitored by determination of the viral load in plasma and CD4+-cell counts. Triple therapy resulted in longer survival and a reduction in opportunistic infections. Oral opportunistic infections are also markedly reduced after the introduction of combination therapies. Combination therapies require stringent compliance and are often accompanied by serious side effects.     

The prevalence of AIDS-associated oral lesions in a cohort of patients with hemophilia

Oral and perioral lesions have been widely reported in homosexual males and intravenous drug abusers who are seropositive for the human immunodeficiency virus (HIV) or have acquired immunodeficiency syndrome (AIDS). Several case reports have also noted some AIDS-associated lesions among persons with hemophilia, but the prevalence of these lesions in hemophilia populations is not known. This study investigated the prevalence of oral and perioral lesions in a cohort of patients receiving care at a hemophilia treatment center. In a sample of 32 patients with a factor VIII deficiency and 5 patients with a factor IX deficiency who underwent oral examinations, more than 80% were HIV seropositive. Cervical lymphadenopathy was present in more than half of the patients who were HIV seropositive but was absent in those who were HIV seronegative. Intraoral AIDS-associated lesions were present only in patients for whom a diagnosis of AIDS had been made, indicating that oral lesions among persons with hemophilia who are HIV seropositive may be less prevalent than among homosexual males or intravenous drug abusers who are HIV seropositive.     

口腔医疗机构艾滋病职业暴露及职业防护的研究进展

艾滋病（AIDS）是由人类免疫缺陷病毒（HIV）引起的一类传染性极强、蔓延速度快、病死率高的传染性疾病,是我国公众健康及传染病防治中的一个难题。口腔诊疗工作的特征,使口腔医疗机构/口腔科成为HIV/AIDS职业暴露的重点部门,医务人员面临较高的HIV/AIDS职业暴露风险。本研究对HIV/AIDS的流行状况及传播途径、HIV/AIDS患者口腔病变、口腔医疗机构HIV/AIDS职业暴露及职业防护的现状进行综述。     

口腔医疗机构艾滋病职业暴露及职业防护的研究进展

艾滋病（AIDS）是由人类免疫缺陷病毒（HIV）引起的一类传染性极强、蔓延速度快、病死率高的传染性疾病,是我国公众健康及传染病防治中的一个难题。口腔诊疗工作的特征,使口腔医疗机构/口腔科成为HIV/AIDS职业暴露的重点部门,医务人员面临较高的HIV/AIDS职业暴露风险。本研究对HIV/AIDS的流行状况及传播途径、HIV/AIDS患者口腔病变、口腔医疗机构HIV/AIDS职业暴露及职业防护的现状进行综述。     

Oral lesions as indicators of HIV infection among routine dental patients in Lagos, Nigeria

OBJECTIVES: To document the incidental oral lesions of human immunodeficiency virus (HIV) infection, the pattern and frequency of the lesions based on clinical presentation and oral manifestations in routine dental patients who tested positive in Nigeria. SUBJECTS AND METHODS: The study was conducted at the Oral Diagnosis/Oral Medicine clinic of the Lagos University Teaching Hospital, Lagos, Nigeria between May 2002 and April 2003. During this period, all patients with oral lesions suggestive of HIV/acquired immunodeficiency syndrome (AIDS) as described in the EEC-WHO Classification and diagnostic criteria of oral lesions of HIV were counseled and offered voluntary HIV testing. All the 35 patients who consented and tested positive were included in this study. RESULTS: Of a total of 700 patients 53 patients with oral lesions suggestive of HIV/AIDS were seen, thirty-eight (72%) consented to HIV screening, 15 patients (28%) refused. Thirty-five patients (92%), mean age 36 +/- 13 years were confirmed positive for HIV. Oral candidiasis was the commonest lesion seen (43%) the second common being Herpes zoster (23%). Other lesions seen included erythema multiforme in two (6%), facial palsy in two (6%) and oral hairy leukoplakia in one (3%). CONCLUSION: An oral mucosal lesion may be the presenting lesion of HIV/AIDS in routine patients attending the dental clinic. Oral health care workers should practice optimal infection control based on the Centers for Disease Control 'Standard Precautions' guidelines on infection control for all patients to minimize occupational transmission of HIV.     

Oral lesions and conditions associated with human immunodeficiency virus infection in 300 south Indian patients

BACKGROUND: Human immunodeficiency virus infection/acquired immunodeficiency syndrome (HIV/AIDS) is a major health problem in India. The National AIDS Control Organisation (NACO) of India reports a seropositivity of 25.03 per thousand for the whole country, as of October 1999. In spite of this high prevalence there are very few reports of oral lesions and conditions in Indian HIV/AIDS patients, which are important in early diagnosis and management of these patients. OBJECTIVE AND SETTING: The present report describes the oral lesions in 300 HIV positive symptomatic patients presenting to us at RAGAS-YRG CARE, a non-governmental organisation in Chennai, South India, over a period of 9 months in 1998. METHOD: Lesions were diagnosed on clinical appearance using international criteria. RESULTS: Of the 300 patients 89% had acquired the infection through heterosexual contact. There were 205 males and 95 females, aged from 7 months to 72 years. Forty-seven percent of the patients were in the age group 21-30 years. CD4 counts were ascertained for 105 patients, 64 (62%) had CD4 counts < or = 200. A total of 217 (72%) of the 300 patients had some oral lesion when examined. Gingivitis (47%) and pseudomembranous candidiasis (33%) were the most common oral lesions. The other oral lesions seen were oral mucosal pigmentation (23%), erythematous candidiasis (14%), periodontitis (9%), angular cheilitis (8%), oral ulcers (3%), oral hairy leukoplakia (3%), hyperplastic candidiasis (1%), oral submucous fibrosis (2%) and one case of leukoplakia. CONCLUSIONS: Oral lesions occur commonly in HIV infection. A comprehensive oral examination may not only suggest HIV disease but may also be useful in monitoring the disease progression. This is a cost-effective procedure, which may be useful in screening large populations in developing countries like India.     

Serum and salivary antibodies to a mycobacterial 65‐kDa stress protein are elevated in HIV‐positive patients and modified by oral candidiasis

Serum immunoglobulin G (IgG) and IgA, and salivary IgA antibodies to a mycobacterial stress protein (mSP65) were determined in human immunodeficiency virus (HIV)–positive patients, acquired immunodeficiency syndrome (AIDS) patients and HIV‐negative controls with or without oral candidiasis. Serum IgG antibodies were elevated in patients with HIV infection and AIDS and especially in subjects with candidiasis compared with controls (P<0.02, P<0.005). This was not apparent with serum IgA. In the absence of candidiasis, salivary IgA antibodies were elevated in HIV‐positive patients compared with AIDS (P<0.005) patients and healthy controls (P=0.001). The relative avidity of serum IgG antibodies to mSP65 in controls with candidiasis was lower than healthy controls (P<0.0001). In saliva there was a decrease in the relative avidity of IgA antibodies in AIDS patients with candidiasis compared with HIV patients (P< 0.03). In patients without candidiasis, the relative avidity was higher in HIV patients than healthy controls (P=0.02). The results suggest that HIV infection leads to raised serum and salivary antibodies to heat shock proteins. Concurrent Candida infection may modify both the titer and relative avidity differently for serum and saliva.     

Oral candidiasis and human immunodeficiency virus infection

The association of oral candidiasis with the human immunodeficiency virus (HIV) infection has been known since the advent of the acquired immunodeficiency syndrome (AIDS) pandemic. Oral candidiasis is one of the earliest premonitory signs of HIV infection and its diagnosis may have grave prognostic implications for the eventual development of full blown AIDS. There is now an expanding body of data on novel clinical variants of this 'old' disease, its epidemiology in HIV seropositive individuals and, advances in its management, particularly with respect to the recently introduced bis-triazole antifungals. Current concepts pertaining to the epidemiology, clinical features, pathogenesis, laboratory diagnosis and management of oral candidiasis in HIV infection are reviewed.     

Oral manifestations in 101 Cambodians with HIV and AIDS.

BACKGROUND: The HIV/AIDS epidemic in Cambodia has become a major problem in the last 7-8 years, mainly because in this formerly war-stricken country the socioeconomic situation is only slowly improving. Since only very few studies have been published to date on the oral health status of Cambodian HIV/AIDS patients, it was the purpose of the present investigation to study oral manifestations in Cambodian patients with HIV disease. METHODS: One hundred one Cambodian patients with HIV infection or AIDS were examined for the presence of oral manifestations in one medical center in Phomh Penh, Cambodia. RESULTS: Sixty-three men and 38 women with a median age of 32 years were examined (age range 7.5-63.5 years). Of these patients, 42.6% were smokers, 46.5% of men were heavy drinkers and 90.5% of men were promiscuous compared with 5.3% of women. The most frequent AIDS-defining diseases were wasting syndrome (54.5%), Pneumocystis carinii pneumonia (PcP) (19.8%) and tuberculosis (18.8%). Puritic papular eruption, a common cutaneous manifestation in HIV-infected patients, was seen in 17.8% of patients. Candida-associated infections of the oral cavity were most common. Among the patients, 52.5% revealed pseudomembranous candidiasis and 35.6% had bilateral hairy leukoplakia. Only 10% of patients had no oral lesions. Also common were necrotising ulcerative gingivo-periodontal diseases (27.7%). CONCLUSION: The general health status of 101 Cambodian patients with HIV infection and AIDS was poor, and they demonstrated a large number of oral manifestations. Antiretroviral therapy is presently not available and only a fraction of patients receives antimycotic treatment (25.7%). HIV infection and the AIDS epidemic in Cambodia have become a serious problem and patients urgently need adequate diagnosis and antiretroviral therapies.     

AIDS and the oral cavity. Epidemiology and clinical oral manifestations of human immune deficiency virus infection: a review

Since the first patients with acquired immune deficiency syndrome (AIDS) were seen in 1981, the disease has been recognized as an epidemic, now considered a major health threat. This article reviews, on the basis of the literature and personal observations of 120 human immune deficiency virus (HIV) infected patients, some aspects of the HIV (HTLV III/LAV) infection with emphasis on epidemiology and clinical aspects. The clinical oral manifestations include 5 groups of lesions: fungal infections, bacterial infections, viral infections, neoplasms and lesions of unknown etiology. In total, these 5 groups comprise 34 different lesions of the oral cavity.     

AIDS-related lymphoma of the oral cavity

Six new cases of non-Hodgkin's lymphoma (NHL), primarily located in the oral cavity, in patients infected by the human immunodeficiency virus (HIV), are presented. They all had a voluminous fungous tumoral mass, that extended from the gingiva to the buccal vestibule or palate. All were intravenous drug abusers. The diagnosis of AIDS was known in one patient, 2 patients presented with AIDS-related complex symptomatology, and in 3 cases NHL was the first manifestation of the HIV infection. All presented advanced stages (IV). Histologically, all were considered high grade NHL. It is recommended to determine the HIV status in all young patients affected with oral NHL. All intraoral lesions in AIDS patients or in patients that belong to a risk group should have a biopsy to rule out NHL or any other manifestations of AIDS.     

AIDS and the oral cavity

The oral cavity is the site for a number of diseases associated with an infection of the human immunodeficiency virus. Often the oral lesions may appear before the establishment of an AIDS diagnosis; and occasionally, the diagnosis may depend solely on the oral manifestations. The most commonly reported oral infections are those caused by Candida albicans and the herpes simplex virus. Hairy leukoplakia, a newly described lesion, may also be of viral origin. Kaposi's sarcoma is the most frequently reported oral malignancy in patients with AIDS. Oral squamous cell carcinoma and non-Hodgkin's lymphomas have also been reported.     

Sensitivity, specificity, and positive predictive value of oral opportunistic infections in adults with HIV/AIDS as markers of immune suppression and viral burden

OBJECTIVES: The purpose of this study was to assess the use of human immunodeficiency virus (HIV)-related oral opportunistic infections as markers of immune suppression and viral burden in adults with HIV/acquired immunodeficiency syndrome (AIDS). METHODS: The population consisted of a single institution observational cohort involving 606 patients with HIV/AIDS with CD4 count data and 277 with plasma viral load measurements examined between 1995 and 1999 for the presence of oral manifestations of HIV. Sensitivity, specificity, positive predictive value (PPV), and negative predictive value is reported for the association of specific oral lesions and lesion sets with CD4 counts <200 cells/mm(3) and with plasma HIV RNA >/=20,000 copies/mL. RESULTS: Lesions with moderate-to-high PPVs for CD4 <200 cells/mm(3) were as follows: Kaposi's sarcoma (100%; P =.035), pseudomembranous candidiasis (82. 2%; P <.001), linear gingival erythema (70.0%; P =.015), hairy leukoplakia (66.3%; P <.001), angular cheilitis (60.0%; P =.128), and erythematous candidiasis (58.3%; P =.061). Necrotizing ulcerative periodontal diseases, HIV salivary gland disease, oral ulcers, and oral warts had PPVs below 50%. Concurrent infection with candidiasis and hairy leukoplakia had the highest PPV of 89.3%; P <. 001. PPVs for HIV RNA >/=20,000 copies/mL ranged from 27.3% to 100%, with significant association only for pseudomembranous candidiasis. CONCLUSIONS: Specific common oral lesions are strongly associated with immune suppression, as measured by CD4 cell counts, and are modestly associated with high viral burden, thus serving as potential clinical markers of HIV viremia and the consequent destruction of the immune system with progressive HIV disease.     

Innate immune mechanisms to oral pathogens in oral mucosa of HIV‐infected individuals

A crucial aspect of mucosal HIV transmission is the interaction between HIV, the local environmental milieu and immune cells. The oral mucosa comprises many host cell types including epithelial cells, CD4 + T cells, dendritic cells and monocytes/macrophages, as well as a diverse microbiome predominantly comprising bacterial species. While the oral epithelium is one of the first sites exposed to HIV through oral‐genital contact and nursing infants, it is largely thought to be resistant to HIV transmission via mechanisms that are still unclear. HIV‐1 infection is also associated with predisposition to secondary infections, such as tuberculosis, and other diseases including cancer. This review addresses the following questions that were discussed at the 8th World Workshop on Oral Health and Disease in AIDS held in Bali, Indonesia, 13 September —15 September 2019: (a) How does HIV infection affect epithelial cell signalling? (b) How does HIV infection affect the production of cytokines and other innate antimicrobial factors, (c) How is the mucosal distribution and function of immune cells altered in HIV infection? (d) How do T cells affect HIV (oral) pathogenesis and cancer? (e) How does HIV infection lead to susceptibility to TB infections?     

Oral manifestations of AIDS: an overview

Infection with the human immunodeficiency virus (HIV) may cause a variety of oral lesions, such as candidiasis, periodontal disease, hairy leukoplakia, Kaposi's sarcoma and a number of miscellaneous lesions and conditions. One hundred HIV-infected patients, including AIDS patients, referred to a University Hospital in Amsterdam, were examined orally. Most patients were initially seen by the Department of Internal Medicine, the oral examination by a well-trained dentist being part of the routine screening of all HIV-infected patients. In 80 per cent of all patients one or more HIV-related lesions of the oral mucosa was recorded. In 6 per cent of those patients the oral lesion was the first manifestation of the HIV infection. Hairy leukoplakia was observed in 15 per cent of all patients. Candidiasis proved to be the most common oral disease. In patients with full-blown AIDS the pseudomembranous form of candidiasis was the most common one, while in HIV-infected patients the erythematous type prevailed. These results emphasize the role of the dentist in making an early diagnosis of HIV infection.     

Oral mucosal ulceration due to cytomegalovirus associated with human immunodeficiency virus infection. Case report and brief review

Reports of oral lesions associated with cytomegalovirus (CMV) infection in human immunodeficiency virus (HIV) infected patients are uncommon¹. In this article a case of CMV infection associated with oral mucosal ulceration and a brief review of the subject is presented. Establishing the cause of ulceration is important in determining a definitive diagnosis and prescribing appropriate therapy. It is important to recognize that CMV associated oral mucosal ulceration may be the initial manifestation of human immunodeficiency virus (HIV) infection.