In Silico Analysis of Genes Associated with the Pathogenesis of Odontogenic Keratocyst.

Odontogenic keratocyst (OK) is a benign intraosseous cystic lesion characterized by a parakeratinized stratified squamous epithelial lining with palisade basal cells. It represents 10-12% of odontogenic cysts. The changes in its classification as a tumor or cyst have increased interest in its pathogenesis. OBJECTIVE: Identify key genes in the pathogenesis of sporadic OK through in silico analysis. MATERIALS AND METHODS: The GSE38494 technical sheet on OK was analyzed using GEOR2. Their functional and canonical signaling pathways were enriched in the NIH-DAVID bioinformatic platform. The protein-protein interaction network was constructed by STRING and analyzed with Cytoscape-MCODE software v 3.8.2 (score > 4). Post-enrichment analysis was performed by Cytoscape-ClueGO. RESULTS: A total of 768 differentially expressed genes (DEG) with a fold change (FC) greater than 2 and 469 DEG with an FC less than 2 were identified. In the post-enrichment analysis of upregulated genes, significance was observed in criteria related to the organization of the extracellular matrix, collagen fibers, and endodermal differentiation, while the downregulated genes were related to defensive response mechanisms against viruses and interferon-gamma activation. CONCLUSIONS: Our in silico analysis showed a significant relationship with mechanisms of extracellular matrix organization, interferon-gamma activation, and response to viral infections, which must be validated through molecular assays.

Validation of an instrument to determine oral health knowledge, attitudes, and practices during pregnancy.

BACKGROUND: Oral health of the mother-infant dyad is important to preserve general health. However, there are few instruments in Spanish for the evaluation of knowledge, attitudes and practices that determine this construct. Therefore, this research aimed to develop and evaluate the psychometric properties of the Maternal Oral Health Knowledge, Attitudes and Practices Questionnaire (CAPSOM in Spanish). METHODS: In this instrument development study that carried out in 2018-2019, involving pregnant women between the ages of 18 and 45 in the city of Leon, Guanajuato, Mexico. The sample size was calculated based on 10 women per questionnaire item (n = 10 k). The study used Cronbach's alpha, the modified Lawshe test of validity criteria, factor analysis, and the level of difficulty and discrimination of the items. RESULTS: 207 women took part with their signed, informed consent (25 ± 6 years). The internal consistency of the instrument, both total and by dimension was α = 0.70, α = 0.66 knowledge, α = 0.74 attitudes, and α = 0.66 practices. Values of Content Validity Ratio' ≥ 0.60 were obtained for the final 10 items and Content Validity Index' = 0.90. The average difficulty index of items was 0.40, and there were significant differences (Kruskall-Wallis, p < 0.001) in the discrimination test. Factor analysis demonstrated three main components. CONCLUSIONS: A valid and reliable 10-item Spanish questionnaire was designed to measure pregnant women's oral health knowledge, attitudes, and practices.

The Effects of COVID-19 on Healthcare Workers and Non-Healthcare Workers in Mexico: 14 Months into the Pandemic.

Background and Objectives: Healthcare workers (HCWs) play important roles in mitigating the COVID-19 pandemic and are more likely to become infected with COVID-19. Mexico, among other countries, had a high incidence and prevalence of cases and deaths from this disease. Material and Methods: This retrospective study evaluated the clinical characteristics as well as the geographical distribution of cases, deaths, and active cases of COVID-19 in HCWs and non-HCWs using official information from the Ministry of Health of Mexico. Results: A total of 235,343 cases of COVID-19 were reported in healthcare workers, and 2,094,191 cases were reported in non-healthcare workers. A total of 76.0% of cases in healthcare workers occurred in those who were between 25 and 50 years of age, and 71.4% of deaths occurred in those who were 50 to 69 years of age. Among healthcare workers, the most frequent comorbidities were obesity (15.2%), hypertension (10.9%), and diabetes (6.8%). Nurses were the group with the most cases (39.7%), followed by other healthcare workers (30.6%), physicians (26%), and dentists (1.6%). Physicians were the group with the most deaths (46%), followed by other professionals (30%), nurses (19%), and dentists (3%). Conclusion: These findings are likely the result of healthcare workers in Mexico being at a greater risk of exposure to SARS-CoV-2.

Impact of oral mucosa lesions on the quality of life related to oral health. An etiopathogenic study.

BACKGROUND: To assess the impact of oral mucosa lesions on quality of life related to oral health (QLROH) and additionally to establish whether the etiopathogenicy of oral lesion is associated to the degree of QLROH impact. MATERIAL AND METHODS: In this cross-sectional study performed on a non-probability sample of 247 consecutively patients attending the oral medicine and pathology clinic the Spanish version of Oral Health Impact Profile-49 questionnaire (OHIP-49-mx) was applied. Responses were recorded on Likert-type scale whose values ranged from 0 (never) to 4 (always). Values greater than the 50 percentile (median) were considered as indicative of poor quality of life. All patients were orally examined and diagnosed. In accordance to their etiopathogenicy 6 study groups were formed: 4 corresponded to MIND classification for diseases (Metabolic, Inflammatory, Neoplastic, and Development groups), with ≥2 diseases and no-lesion group. To identify possible differences of OHIP-49 values between study groups an ANOVA (one factor) parametric and a chi square tests were performed (SPSS®20.0). RESULTS: The OHIP-49-mx values were higher than the 50 percentile (established at 39) in metabolic, inflammatory, development, and ≥2 diseases groups, suggesting that this type of oral lesions negatively impact the quality of life. ≥2 diseasesgroup followed by metabolic and inflammatory diseases group (p 0.001) depicted worst quality of life. Functional limitation (p 0.003), pain, physical inability (p 0.001) and psychological disabilities dimensions exhibited greater values in all groups. CONCLUSIONS: Injured oral mucosa negatively impacts quality of life, specifically functional limitation, physical inability and psychological disabilities could lead to social isolation.To our knowledge, this is the first time that an association between QLROH and the etiopathogenicy of oral mucosal diseases is established.

Neuroticism and Psychological Stress in Patients Suffering Oral Lichen Planus: Research Evidence of Psycho-Stomatology?

Psychosocial factors influence the development, exacerbation, or aggravation of some oral diseases. However, the possible relationship between personality traits, affective disorders, and psychological stress in oral diseases, and their impact on oral health-related quality of life (OHRQoL), has not been fully clarified. The aim of the present study was to determine the association of neuroticism and stress with the presence of oral lichen planus (OLP), and to discover whether or not these factors impact OHRQoL. This is a case-control study matched for age and sex. The case group (OLP group) was composed of 20 patients diagnosed with OLP, while 20 people with a diagnosis of lesions not associated with stress formed the control group. Three instruments were used: the Holmes-Rahe Social Readjustment Scale, the Five Factor Personality Model, and the OHIP-49. Neuroticism obtained a score of 25.5 (±5.4) in the OLP group, which was higher than the control group value (21.7) (±5.1) (p = 0.03). The OLP group showed a worse quality of life (p < 0.05); the most affected dimensions were psychological discomfort and physical disability. It is important to include a psychological profile to establish a comprehensive treatment for these patients. We propose the recognition of a new area of clinical oral medicine: psycho-stomatology.

The Protective Role of Cranberries and Blueberries in Oral Cancer.

BACKGROUND: Oral cancer has a high prevalence worldwide, and this disease is caused by genetic, immunological, and environmental factors. The main risk factors associated with oral cancer are smoking and alcohol. RESULTS: There are various strategies to reduce risk factors, including prevention programs as well as the consumption of an adequate diet that includes phytochemical compounds derived from cranberries (Vaccinium macrocarpon A.) and blueberries (Vaccinium corymbosum L.); these compounds exhibit antitumor properties. RESULTS: The main outcome of this review is as follows: the properties of phytochemicals derived from cranberries were evaluated for protection against risk factors associated with oral cancer. CONCLUSIONS: The secondary metabolites of cranberries promote biological effects that provide protection against smoking and alcoholism. An alternative for the prevention of oral cancer can be the consumption of these cranberries and blueberries.

[Oral Candida in Mexican children with malnutrition, social marginalization, or HIV/AIDS]. / Candida bucal en niños mexicanos con VIH/sida, desnutrición o marginación social.

OBJECTIVE: Determine the frequency of candida in the oral cavity of children with a risk of developing opportunistic infections, and establish if there is an association between the frequency of this oral colonization and three categories of at-risk populations. METHODS: Four infant population groups in Mexico were studied: an HIV/AIDS group undergoing highly active antiretroviral therapy (35 girls and 25 boys); a malnourished group (26 girls and 29 boys); a group from the Tarahumara indigenous people, one of the poorest ethnic populations in the country (37 girls and 20 boys); and a control group (8 girls and 21 boys in apparently good health). The children with HIV/AIDS were immunologically and virologically classified according to the EC Clearinghouse criteria, while malnutrition was determined through the World Health Organization's weight/height index. A sample of oral mucosa was taken with a sterile swab, which was incubated in Sabouraud dextrose agar and in Candida CHROMagar®. The species of candida were confirmed through the API ID32C test. RESULTS: The HIV/AIDS and malnutrition groups showed the higher frequency of Candida spps (51.7% and 38.2%, respectively), while the frequency level in the Tarahumara group was similar to that of the control group (17.5% versus 10.3%). With regard to the species of candida, the malnutrition group had the greatest diversity: C. albicans, C. tropical, C. krusei, and C. glabrata. CONCLUSIONS: The children with HIV/AIDS and malnutrition require strategies designed to reduce oral candidal colonization and reduce the risk of opportunistic infections.

Trends in frequency and prevalence of oral cancer and oral squamous cell carcinoma in Mexicans. A 20 years retrospective study.

OBJECTIVE: To establish the time trends of the frequency and prevalence of oral cavity cancer in regard to age and gender in a 20-years (time period 1989 - 2008) cohort of Mexicans. DESIGN AND SETTING: 13,235 head and neck biopsies from the archive of the Oral Pathology Laboratory, Dental School, National Autonomous University of Mexico were revised. The cases with diagnoses of oral cancer were selected. Gender and age at diagnosis was obtained from medical records. The frequency and prevalence of oral cavity cancer and oral squamous cell carcinoma were assessed biannually in regard to the total number of population served by the oral pathology laboratory. The statistical significance of trends was established using the linear logistic regression (curve estimation) test (s 0.05). RESULTS: 298 cases (138 males; 160 females) of oral cancer were included; 167 (92 females; 75 males; female:male ratio: 1.1:1) corresponded to oral squamous cell carcinoma. From 1989 to 2008 the prevalence of oral cancer and oral squamous cell carcinoma increased 200% (s 0.05) and 100% (s 0.000) respectively. The increase of frequency and prevalence was observed in both genders however only in females was significant (s 0.000). We do not identify changes in the age at diagnosis. CONCLUSIONS: Oral cancer, specifically oral squamous cell carcinoma, has increase in Mexicans females in the last 20 years.

Necrotizing sialometaplasia of the tonsillar pillar. An unusual case.

Necrotizing Sialometaplasia (NS) is a rare, benign, self-limited, inflammatory and necrotizing reaction of the salivary glandular tissue. Due to the clinical picture (a painful ulcer with well-defined edges), and histopathological characteristics (nuclear and cellular pleomorphism of ductal cells) NS can mimic a malignant lesion. The correct diagnosis is important because NS shows a spontaneous resolution and therefore no further treatment is needed. We report a very unusual case of spontaneous and recurrent NS located on the anterior tonsillar pillar in a 43-year old man, which clinically mimics a malignant lesion. The clinician should be aware to include NS in the differential diagnosis of ulcers in soft palate and tonsillar pillars. Key words:Minor salivary gland, necrotizing sialometaplasia, oral ulcer, squamous cell carcinoma, tonsillar pillar.

Non-neoplasic and non-syndromic palatal perforations. Presentation of 5 cases and systematic review of the literature.

BACKGROUND: Palatal perforations not associated with syndromes or neoplasms are rare lesions whose frequency has increased recently. However, their clinical and demographic characteristics have not been fully described. Therefore, this report aimed to establish the demographic and clinical characteristics of patients with non-syndromic and non-neoplastic palatal perforations. MATERIAL AND METHODS: The file of an oral medicine teaching clinic from January 2004 to December 2018 was reviewed to identify and isolate all cases with a diagnosis of palatal perforation. Cases with a diagnosis of palatal perforation related to congenital alteration, syndrome, or neoplasia were excluded. Age, sex, medical history, and diagnosis were obtained from the clinical history. In addition, a systematic review of the literature was performed using a PICO strategy. MEDLINE electronic databases from January 1990 to December 2018 were systematically reviewed using the combination of keywords with Boolean terms "OR" (palatal perforation, destruction of the palate) and "AND" (drugs, cocaine, mycosis, syphilis, mucormycosis, tuberculosis, trauma). The PRISMA guide was used to identify the different results of the literature search and article selection process. Case reports and case series were included. RESULTS: Five cases of non-syndromic, non-neoplastic palatal perforations were identified. All cases were male with a mean age of 42 years. Two cases were related to cocaine use, 2 cases were caused by mucormycosis, and one case by trauma. As for the systematic literature review, 51 non-neoplastic and non-syndromic cases were collected. The cases showed a male predominance, with a mean age of 41 years. The most frequent etiology was chronic cocaine use followed by mucormycosis. CONCLUSIONS: Since cocaine use and type II Diabetes Mellitus, risk factors related to non-syndromic and non-neoplastic palatal perforations, have shown a worldwide increase, the clinician should be alert to make an early diagnosis and initiate appropriate treatment. Key words:Palatal perforation, cocaine-induced, mucormycosis, mycotic infection, drug users.

In vitro activity of voriconazole against Mexican oral yeast isolates.

Oral candidiasis is the most prevalent complication in HIV-infected and AIDS patients. Topical antifungal treatment is useful for the initial episodes of oral candidiasis, but most patients suffer more than one episode and fluconazole or itraconazole can help in the management, and voriconazole may represent a useful alternative agent for the treatment of recalcitrant oral and oesophageal candidiasis. The aim of this research was to study the in vitro activity of voriconazole and fluconazole against Mexican oral isolates of clinically relevant yeast. The in vitro susceptibility of 187 oral yeast isolates from HIV-infected and healthy Mexicans was determined for fluconazole and voriconazole by the M44-A disc diffusion method. At 24 h, fluconazole was active against 179 of 187 isolates (95.7 %). Moreover, a 100% susceptibility to voriconazole was observed. Voriconazole and fluconazole are highly active in vitro against oral yeast isolates. This study provides baseline data on susceptibilities to both antifungal agents in Mexico.

Oral lesions in HIV+/AIDS adolescents perinatally infected undergoing HAART.

OBJECTIVE: To assess the prevalence of the oral lesions related to HIV-infection (HIV-OL) in HIV+/AIDS adolescents (=13 years old), and the differences with HIV+/AIDS children (=3 - <13 years old) perinatally infected. MATERIAL AND METHODS: 25 HIV+/AIDS adolescents and 62 HIV+/AIDS children, undergoing Highly Active Antiretroviral Therapy, were orally examined. HIV-OL was diagnosed in accordance with EC-Clearinghouse-World Health Organization. The patients were classifies with respect to their immune status in relation with the CD4+ cell counts as moderately immunodeficient; mildly immunodeficient and severely immunodeficient in accordance to the revised surveillance case definitions for HIV infection among adults, adolescents, and children aged <18 months and for HIV infection and AIDS among children aged 18 months to <13 years (CDC-USA). The virological status was established in relation to the copies of RNA-HIV-1/mL as follows: with undetectable viral load (UDVL); with low viral load and with high viral load. A chi-square test was performed (p<0.05 IC95%). RESULTS: The prevalence of HIV-OL in HIV+/AIDS adolescents was 20% while in HIV/AIDS children was 30.6% (p>0.05). Oral candidiasis was the most prevalent oral lesion in both groups. Association (p<0.05) of a high prevalence of HIV-OL and oral candidiasis with a high viral load was observed in both study groups. CONCLUSIONS: Adolescents perinatally HIV-infected have a high prevalence of HIV-OL. Oral Candidiasis still is the most frequent oral opportunistic infection. Oral lesions could have association to viral failure in HIV+/AIDS adolescents undergoing HAART.

Vascular leiomyoma of the oral cavity. Clinical, histopathological and immunohistochemical characteristics. Presentation of five cases and review of the literature.

Leiomyoma, a benign neoplasia arising from smooth muscle is an uncommon neoplasia of the oral cavity. The most common histological subtype in the oral cavity is the vascular one. To supplement information on vascular leiomyoma of the oral cavity (VLOC), we present cases of VLOC describing their clinical, histological, and immunohistochemical characteristics. Case reports. Five cases of VLOC (3 females; 2 males) from the Clinical and Experimental Pathology Laboratory, Dental School, National Autonomous University of México, are included. The most frequent clinical characteristic of VLOC was a single, asymptomatic, slow growing nodule. The age average of the cases was 40.6, however 3 out of our 5 cases were < or = 40 years old at the moment of their diagnosis. The lesions were composed of fusiform cells arranged in bundles or fascicles. The neoplastic cells were characterized by eosinophilic cytoplasm and tapered nuclei. The presence of vascular spaces was prominent in all cases. The immunocharacteristics of VLOC neoplastic cells were: alpha smooth muscle (+); vimentin (+), desmin (+), CD34 (-) and S-100 protein (-). The endothelial cells of vascular spaces were CD34 (+). Differential diagnosis of VLOC with fusocellular neoplasm is discussed.

Comparison of a randomly amplified polymorphic DNA (RAPD) analysis and ATB ID 32C system for identification of clinical isolates of different Candida species.

The objective of this work was to compare the usefulness of a randomly amplified polymorphic DNA (RAPD) assay to that of the ATB ID32C kit (bioMérieux, France) for identification of different species of Candida isolated from clinical specimens. The RAPD-PCR patterns obtained with OPE-18 primer for identification of clinical isolates were consistent, and the different independent assays revealed reproduction of the band patterns. RAPD with the OPE-18 primer is a very specific and sensitive method for identification of Candida glabrata, Candida guilliermondii, Candida tropicalis, Candida pelliculosa, Candida albicans, Candida krusei, and Candida lusitaniae.

Plasmacytoid myoepithelioma of the palate. Report of one case and review of the literature.

INTRODUCTION: Myoepithelioma is a benign neoplasm of salivary glands, represents 1.5 % of all salivary glands neoplasm. The plasmacytoid myoepithelioma from palate salivary glands is considered as a rare entity, at date it has been reported 14 cases. It is present one case of plasmacytoid myoepithelioma of palate. CASE REPORT: A Hispanic female of 28 years old presented a not-ulcerate, painless ovoid swelling at left side of hard palate with a one year and a half of evolution. An excisional biopsy was done. The sample was fixed at 10% buffer formalin, embedded in paraffin, cuts at 5 micron and stained with H-E. Microscopically, the lesion was composed by myoepithelial neoplastic cells characterized by a round ovoid silhouette, an eccentric nuclei of dense chromatin and eosinophilic cytoplasm. In some myoepithelial neoplastic cells were identifies intranuclear cytoplasmatic inclusions. The lesion was analysed with immunohistochemical technique using the follow antibodies: vimentin, citokeratin AE1/AE3, S100 protein and actin muscle specific. We observe positive immunoreactivity against vimentin, citokeratin, S100 protein and actin muscle specific. A diagnosis of plasmacytoid myoephitelioma of palate salivary glands was done. Our findings supports the suggestion about plasmacytoid myoepithelioma is an independent entity. The histological diagnostic parameters of plasmacytoid myoepithelioma versus pleomorphic adenoma are discussed.

Prevalence and distribution of odontogenic cysts in a Mexican sample. A 753 cases study.

BACKGROUND: Odontogenic cysts (OC) are the most frequent lesions of the jaws and their constant epidemiological update is necessary and indispensable. Therefore the principal objective of this report was To determine prevalence and clinical-demographical characteristics of OC in a Mexican sample. MATERIAL AND METHODS: 753 cases of OC coming from the archive of a head and neck histopathological teaching service, from January 2000 to December 2013, were included. OC cases were re-assessed according 2005 WHO classification. Chi square test was used to establish possible associations (p<0.05IC95%). RESULTS: From 753 OC, 369 were female and 384 male; 52.9% of them were in their 2nd- 4th decade of life. The most common location (41%) was the mandibular posterior area. Radicular cysts were more frequent in maxillary anterior zone of females (p 0.0002) at their fourth decade of life. Dentigerous cysts were more frequent in the mandibular posterior zone of males (p 0.0000) in their second decade of life. Six cases of periodontal lateral cyst; 4 cases of paradental cysts; 4 eruption cysts and 4 cases of adult gingival cyst, as well were identified. CONCLUSIONS: Radicular cyst and dentigerous cyst are the most prevalent odontogenic cyst in this Mexican sample. Due to their etiology, dental pulpar necrosis and impacted teeth, radicular cyst and dentigerous cyst could be prevenible. Therefore, it is necessary to establish preventive strategies to diminish dental decay and programs of prophylactic extractions of impacted teeth, to in consequence decrease the prevalence of odontogenic cysts. Key words:Cyst, dentigerous cyst, mexican, odontogenic cyst, radicular cyst.

Point prevalence, microbiology and antifungal susceptibility patterns of oral Candida isolates colonizing or infecting Mexican HIV/AIDS patients and healthy persons.

We have conducted a longitudinal study over a 3-year period to address the point prevalence, microbiological characteristics and antifungal susceptibility patterns of yeast isolates colonizing or infecting the oral cavities of 111 HIV-infected (51 adults, 60 children) and 201 non HIV-infected (109 adults, 92 children) Mexican persons. Regarding the epidemiology of oral candidiasis, Candida albicans was the most frequent species isolated. Seventy-one out of 85 isolates from colonized persons were C. albicans (83.5%), 27 isolates of them were from HIV-infected children and 44 from non HIV-infected patients. Sixty-two isolates belonged to serotype A which was the most prevalent serotype of C. albicans. Non-albicans species (Candida glabrata, Candida tropicalis and Candida parapsilosis, and Saccharomyces cerevisiae) were isolated from 16.5% of colonized patients and from 38.5% patients with candidiasis or Candida-related lesions. There were nine episodes of infection or colonization by at least 2 different yeast species. In the case of HIV/AIDS patients, it was determined that yeast carriage was not associated with the number of CD4+ cells or the viral load, but HAART reduced the prevalence of oral candidiasis. Overall, most patients harbored strains in vitro susceptible to fluconazole, however 10.8% of the yeasts were resistant to one or more azole antifungal agents and 29% were intermediate susceptible to them. On the contrary, 5-fluorocytosine was very active against all isolates tested, and amphotericin B was active against 97.9% of them.

Oral candidosis as a clinical marker of immune failure in patients with HIV/AIDS on HAART.

Oral candidosis (OC) has been proposed as a clinical marker of highly active antiretroviral therapy (HAART) success or failure. The principal objective of this work was to assess whether the presence OC is associated with immunologic or virologic failure in patients with HIV/AIDS undergoing HAART. One hundred fifty-one patients with HIV/AIDS from Regional Hospital "Carlos Haya," Malaga, Spain, were examined orally. All patients had been undergoing HAART for a minimum of 6 months prior to oral examination. OC diagnosis was in accordance with World Health Organization-Centers for Disease Control (WHO-CDC) criteria. Age, gender, route of HIV infection, CD4 lymphocyte counts, and viral load were taken from the medical records. In regard to HAART response the patients were classified as: virologic- responders (viral load < 50 copies per milliliter), virologic nonresponders (viral load >50 copies per milliliter); immunologic responders (CD4 cells counts > 500 per milliliter), and immunologic nonresponders (CD4 cells counts < 500 per milliliter). Prevalence of OC was determined for each group. The presence of OC was closely related to immune failure (p 0.006; odds ratio [OR] 3.38 95% confidence interval [CI] 1.262-12.046) in patients with HIV/AIDS undergoing HAART. The probability of immune failure in the presence of OC was 91% for men who have sex with men, 95.5% for heterosexuals, and 96% for intravenous drug users. In conclusion, OC should be considered a clinical marker of immune failure in patients with HIV/AIDS undergoing HAART.

Prevalence of oral candidiasis in HIV/AIDS children in highly active antiretroviral therapy era. A literature analysis.

SummaryHighly active antiretroviral therapy has decreased the morbidity and mortality related to HIV infection, including oral opportunistic infections. This paper offers an analysis of the scientific literature on the epidemiological aspects of oral candidiasis in HIV-positive children in the combination antiretroviral therapy era. An electronic databases search was made covering the highly active antiretroviral therapy era (1998 onwards). The terms used were oral lesions, oral candidiasis and their combination with highly active antiretroviral therapy and HIV/AIDS children. The following data were collected from each paper: year and country in which the investigation was conducted, antiretroviral treatment, oral candidiasis prevalence and diagnostic parameters (clinical or microbiological). Prevalence of oral candidiasis varied from 2.9% in American HIV-positive children undergoing highly active antiretroviral therapy to 88% in Chilean HIV-positive children without antiretroviral therapy. With respect to geographical location and antiretroviral treatment, higher oral candidiasis prevalence in HIV-positive children on combination antiretroviral therapy/antiretroviral therapy was reported in African children (79.1%) followed by 45.9% reported in Hindu children. In HIV-positive Chilean children on no antiretroviral therapy, high oral candidiasis prevalence was reported (88%) followed by Nigerian children (80%). Oral candidiasis is still frequent in HIV-positive children in the highly active antiretroviral therapy era irrespective of geographical location, race and use of antiretroviral therapy.

Sialolipoma of minor salivary glands: presentation of five cases and review of the literature with an epidemiological analyze.

UNLABELLED: Sialolipoma is rare benign neoplasm arise from salivary glands (majors and minors) characterized by neoplastic adipose tissue with scattered non-neoplastic salivary gland acinus. To date 60 cases (including 5 cases reported in the present paper) have been reported in scientific literature. This article presents 5 new cases of sialolipoma affecting minor salivary glands (MiSG) and additionally reviews and analyzes the previously published cases to assess possible demographical differences between sialolipoma from minor and from major salivary glands. CASE REPORTS: 5 cases (3 females; 2 males; age means 63.8 years), of sialolipoma from MiSG, are reported. 2 of them were located in buccal mucosa, 1 in upper lip mucosa, 1 in floor of the mouth and 1 in retromolar area. All tumors were composed by neoplastic adipocytes cells interlaced with normal salivary gland acinus cover it by a fibrous tissue capsule. Analyzes of literature showed that MiSG sialolipoma is most frequent in females over 60 years old, therefore and in conclusion this article assess different demographical profile of sialolipoma in respect to their topography.