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nevertheless, <span class="elsevierStyleItalic">C. parapsilosis, C. tropicalis, C. glabrata, C. krusei, C. guilliermondii </span>and<span class="elsevierStyleItalic"> C. dubliniensis </span><span class="elsevierStyleItalic">have also been reported</span><span class="elsevierStyleItalic">.</span><span class="elsevierStyleSup">1,2,4 </span>Colonisation of the OM by <span class="elsevierStyleItalic">Candida </span>sp<span class="elsevierStyleItalic">.</span> is a risk factor for progression to oral candidiasis (OC), both in immunocompetent and immunocompromised individuals.<span class="elsevierStyleSup">1,5</span> OC is due to the proliferation of fungi on the mucosa surface and it may come from the microbiota of the same patient in a carrier state.<span class="elsevierStyleSup">4</span> Its growth is explained by fungal mechanisms and the host’s defences.<span class="elsevierStyleSup">3,6</span> The coexistence of different Candida species in an infection makes it more persistent and difficult to treat.<span class="elsevierStyleSup">7,8</span></p><p class="elsevierStylePara">In Mexico there is no chronic kidney disease (CKD) patient registry. Several authors have reported that diabetes is the most common cause of CKD in adults, its incidence is increasing and it is a public health problem.<span class="elsevierStyleSup">9-11</span> Chronic kidney disease patients on dialysis have a high frequency of anaemia, malnutrition and multifactorial immunological deterioration, and as such, they are considered to be immunosuppressed.<span class="elsevierStyleSup">12,13</span></p><p class="elsevierStylePara">In the oral context, it has been reported that these patients have decreased salivary flow (SF), xerostomia and mucosal atrophy,<span class="elsevierStyleSup">14,15</span> conditions that are conducive to OC development both in diabetic (DM) patients without complications and in DM patients<span class="elsevierStyleSup">16</span> with CKD on dialysis.<span class="elsevierStyleSup">14,15,17 </span>Although prevalence of colonisation and OC has been reported in different groups of immunocompromised patients, few studies have been conducted on dialysis patients. The purpose of this study was to determine the prevalence of different <span class="elsevierStyleItalic">Candida</span> species that colonise or infect the OM of DM patients with CKD on dialysis and compare them with non-diabetic (non-DM) patients with CKD on dialysis and analyse some potential risk factors.</p><p class="elsevierStylePara"><span class="elsevierStyleBold"> </span></p><p class="elsevierStylePara"><span class="elsevierStyleBold">MATERIAL AND METHOD</span></p><p class="elsevierStylePara"> </p><p class="elsevierStylePara"><span class="elsevierStyleBold">Study population</span></p><p class="elsevierStylePara"> </p><p class="elsevierStylePara">A cross-sectional study in which we examined DM and non-DM CKD patients of the Haemodialysis Unit at the Hospital General de Zona No. 50 from the Instituto Mexicano del Seguro Social in San Luis Potosí, Mexico. The study had previously been approved by the hospital’s research and ethics committees. We collected demographic data, kidney disease data, the progression time of diabetes mellitus (where applicable) and clinical laboratory data from the patients’ clinical records. All patients were requested their informed consent for us to take oral samples. We excluded patients with unstable clinical conditions who were not suitable for oral examination and/or SF measurement. We excluded cases when the culture became contaminated and we were unable to contact the patient in order to obtain a new sample. The oral examination was carried out by a specialist in Oral Pathologies and Medicine. The culture sample was taken in the morning and at least two hours after eating food or intaking liquids and the patients were asked about their use of dental prostheses (DP). Before taking samples for the microbiological culture, we measured SF using Schirmer’s test, which consists of measuring accumulated saliva in the floor of the mouth for five minutes using Whatman strips (millimetrically graded filter paper). We considered the SF to have decreased whenever the reading was ≤2.0cm.<span class="elsevierStyleSup">18</span> The clinical criteria for the diagnosis of OC were those of Holmstrup and Axéll (erythematous or pseudomembranous candidiasis or prosthesis-associated candidiasis).<span class="elsevierStyleSup">19 </span>When a lesion suggestive of OC was identified in the oral examination, we performed an exfoliative cytology, which was stained with Periodic acid–Schiff to confirm the infection. The patient was considered to have an infection whenever there was a clinical lesion and the exfoliative cytology was positive.</p><p class="elsevierStylePara"> </p><p class="elsevierStylePara"><span class="elsevierStyleBold">Microbiological methods and species identification</span></p><p class="elsevierStylePara"> </p><p class="elsevierStylePara">For fungal identification, we took samples of the whole OM of each patient with sterile swabs, which were coded for their subsequent inoculation on Sabouraud dextrose agar plates with chloramphenicol and on Biggy agar plates. <span class="elsevierStyleItalic">Candida</span><span class="elsevierStyleItalic"> was characterised by various </span>phenotypic methods, including cultures, germ tube formation in human serum and biochemical profiles with API<span class="elsevierStyleSup">®</span> galleries. We considered as colonised (healthy carrier) asymptomatic patients without oral lesions and with mucosa swab culture positive for <span class="elsevierStyleItalic">Candida </span>sp. The plates were incubated at 36.5±0.5°C, with growth readings being performed after 24, 48 and 72 hours. With the Biggy agar culture, we carried out a presumptive identification of the <span class="elsevierStyleItalic">Candida</span> species, in accordance with the colorimetric characteristics; furthermore, the use of this means allowed us to identify the presence of two or more <span class="elsevierStyleItalic">Candida</span> species in the same sample. Positive cultures in one or more species were re-inoculated and purified in Sabouraud glucose agar plates and were incubated at 36°C (±1ºC) for two days. The <span class="elsevierStyleItalic">Candida</span> species were identified by the carbohydrate assimilation system API 20 C AUX (BioMerieux, Lyon, France).</p><p class="elsevierStylePara"> </p><p class="elsevierStylePara"><span class="elsevierStyleBold">Statistical analysis</span></p><p class="elsevierStylePara"> </p><p class="elsevierStylePara">We performed a descriptive analysis of the demographic and clinical variables, age, sex, body mass index, causes of chronic renal failure (CRF) and clinical laboratory data. Comparisons were made with the Student’s t-test and χ<span class="elsevierStyleSup">2</span>. The presence or absence of <span class="elsevierStyleItalic">Candida</span> in the OM was graded on an ordinal scale of three levels: 1) absent, 2) carrier and 3) present with candidiasis. Potential risk factors were investigated using multiple logistic regression analysis, with candidiasis as the dependent variable and the independent variables being sex, genus, CKD data, laboratory data and the use of DP. We used the Epi Info version 3.4.3 software and considered a <span class="elsevierStyleItalic">P</span>-value of <.05 to be statistically significant. </p><p class="elsevierStylePara"><span class="elsevierStyleBold">RESULTS</span></p><p class="elsevierStylePara"> </p><p class="elsevierStylePara">We studied a total of 136 patients (56 DM and 80 non-DM), 80 males and 56 females, with an average age of 45.3±17.6 (14-86) years old. One hundred and twenty-six were on chronic haemodialysis (HD) and 10 on peritoneal dialysis, with a median treatment time of 24 (2 to 168) months. Table 1 shows a comparative analysis of demographic and clinical characteristics and laboratory results for both groups. Twenty-four patients (17.6%) reported a history of smoking, with there being no difference between groups.</p><p class="elsevierStylePara"> </p><p class="elsevierStylePara"><span class="elsevierStyleBold">Oral conditions</span></p><p class="elsevierStylePara"> </p><p class="elsevierStylePara">Table 2 shows that DM patients more commonly used DP (<span class="elsevierStyleItalic">P</span>=.004), had higher xerostomia (<span class="elsevierStyleItalic">P</span>=.018) and lower SF (<span class="elsevierStyleItalic">p</span>=.008). Eighteen patients (13.2%) used DP.</p><p class="elsevierStylePara">The prevalence of <span class="elsevierStyleItalic">Candida</span> in OM was 43.4% (59/136): 53.6% (30/56) in DM and 36.2% (29/80) in non-DM (<span class="elsevierStyleItalic">P</span>=.045). As regards <span class="elsevierStyleItalic">Candida </span><span class="elsevierStyleItalic">species</span>,<span class="elsevierStyleItalic"> </span>we did not observe a difference between DM and non-DM. Table 3 displays the frequency by<span class="elsevierStyleItalic"> </span>species of the total isolated <span class="elsevierStyleItalic">Candida</span> and cases with two or more species in the same patient. The frequencies per species of the total positive isolated <span class="elsevierStyleItalic">Candida</span> (71) were: <span class="elsevierStyleItalic">C. albicans</span> 44 (74.6%), <span class="elsevierStyleItalic">C. glabrata</span> 13 (22.0%), <span class="elsevierStyleItalic">C.</span><span class="elsevierStyleItalic">tropicalis</span> 9 (15.2%), <span class="elsevierStyleItalic">C. parapsilosis</span> 2 (3.4%<span class="elsevierStyleItalic">)</span>,<span class="elsevierStyleItalic"> C. kefyr</span> 2 (3.4%) and <span class="elsevierStyleItalic">C. famata</span> 1 (1.7%). Eleven patients (8.1%) had more than one <span class="elsevierStyleItalic">Candida </span><span class="elsevierStyleItalic">species</span>; one patient had <span class="elsevierStyleItalic">C. albicans/C. glabrata/C. tropicalis</span>, 5<span class="elsevierStyleItalic"> </span>patients had <span class="elsevierStyleItalic">C. albicans/C. glabrata,</span> 3 patients had<span class="elsevierStyleItalic"> C. albicans/C. tropicalis, </span>one had<span class="elsevierStyleItalic"> C. glabrata/C. tropicalis </span>and one had <span class="elsevierStyleItalic">C. glabrata/C. parapsilosis</span>. </p><p class="elsevierStylePara">We observed OC in 16.9% (23/136) of the total group, 23.2% (13/56) in DM-CRF patients and 12.5% (10/80) in non-DM patients (<span class="elsevierStyleItalic">P</span>=.101). Of the 18 DP users, 55.6% (10/18) had prosthesis-associated OC, 61.5% (8/13) were DM patients and 40% (2/5) were non-DM patients (<span class="elsevierStyleItalic">P</span>=.608, Fisher’s ET). In relation to the clinical type, 19 patients (82.6%) displayed the erythematous type on the dorsum of the tongue and one patient had erythematous and pseudomembranous candidiasis and DP-associated candidiasis. The <span class="elsevierStyleItalic">Candida </span>species identified in cases with candidiasis were <span class="elsevierStyleItalic">C. albicans</span> 17 (73.9%), <span class="elsevierStyleItalic">C. tropicalis </span>7 (30.4%), <span class="elsevierStyleItalic">C. glabrata </span>4 (17.4%) and <span class="elsevierStyleItalic">C. kefy</span>r 1 (4.3%). In the 36 cases without candidiasis, we identified: <span class="elsevierStyleItalic">C. albicans</span> 27 (75.0%), <span class="elsevierStyleItalic">C. glabrata</span> 9 (25.0%), <span class="elsevierStyleItalic">C. parapsilosis</span> 2 (5.6%), <span class="elsevierStyleItalic">C. tropicalis</span> 2 (5.6%), <span class="elsevierStyleItalic">C. kefyr</span> 1 (2.8%) and <span class="elsevierStyleItalic">C. famata</span> 1 (2.8%). We did not observe a difference between groups (those with and without candidiasis) in the prevalence of <span class="elsevierStyleItalic">C. albicans</span>.</p><p class="elsevierStylePara">Table 4 shows the final multiple logistic regression analysis, after discarding the variables that showed <span class="elsevierStyleItalic">P</span> values>.50 in previous analyses. We observed an increased relative risk of the presence of <span class="elsevierStyleItalic">Candida</span> in OM (with or without candidiasis) in patients who used DP (<span class="elsevierStyleItalic">p</span>=.006), with xerostomia (<span class="elsevierStyleItalic">p</span>=.001) and with low serum albumin values (<span class="elsevierStyleItalic">p</span>=.044) (the latter was 3.6±0.6g/dl in patients with candidiasis, 3.8±0.8g/dl in carrier patients and 4.1±0.6g/dl in patients not colonised).</p><p class="elsevierStylePara"><span class="elsevierStyleBold"> </span></p><p class="elsevierStylePara"><span class="elsevierStyleBold">DISCUSSION</span></p><p class="elsevierStylePara"> </p><p class="elsevierStylePara">Our results demonstrated that the presence of <span class="elsevierStyleItalic">Candida </span><span class="elsevierStyleItalic">in OM, colonising or infecting, was related to the use of DP, </span>xerostomia and low serum albumin.</p><p class="elsevierStylePara">Colonisation by <span class="elsevierStyleItalic">Candida sp.</span> in the mucosa is a risk factor for superficial infections such as OC, and others of greater significance, i.e. invasive infections, especially in immunocompromised patients.<span class="elsevierStyleSup">5,17,20</span> The coexistence of different <span class="elsevierStyleItalic">Candida</span> species in an infection makes it more persistent and difficult to treat.<span class="elsevierStyleSup">8,21</span></p><p class="elsevierStylePara">Colonisation by <span class="elsevierStyleItalic">Candida sp.</span> occurred in 43.4%, a prevalence similar to that reported (39%) in a similar study on patients with CKD.<span class="elsevierStyleSup">22</span> Other authors have reported frequencies of 46%<span class="elsevierStyleSup">23 </span> in DP users with HD, or 51.2% in which the oral microbiota of HD patients was what was measured.<span class="elsevierStyleSup">24</span> The frequency observed in this study was lower than that reported in other immunocompromised groups of patients with head and neck neoplasms 56.8%,<span class="elsevierStyleSup">25</span> with solid organ transplants 57%,<span class="elsevierStyleSup">8 </span>with the human immunodeficiency virus (HIV/AIDS) 66.7%,<span class="elsevierStyleSup">26 </span>at the end of radiotherapy for oral cancer 69%<span class="elsevierStyleSup">27</span> and with type 2 diabetes mellitus 77%.<span class="elsevierStyleSup">21</span> The foregoing may be explained by the fact that in each group studied, there are major local factors, such as a severe decrease in SF due to radiotherapy, systemic factors such as the use of immunosuppressant drugs or antineoplastic medication that causes xerostomia or immunosuppression due to the underlying disease. CKD patients, despite the known decrease in monocyte functions, systemic deterioration and hyposalivation, are not on average as immunosuppressed as the other patients.<span class="elsevierStyleSup">12,27-29</span></p><p class="elsevierStylePara"><span class="elsevierStyleItalic">Candida albicans </span>was the predominant species (74.6%), without there being a difference between groups (<span class="elsevierStyleItalic">p</span>=.148). This species is the most prevalent both in healthy individuals<span class="elsevierStyleSup">2</span> and in those with systemic involvement.<span class="elsevierStyleSup">7,8,22-25</span> Its frequencies vary in accordance with the group studied: dialysis patients from 51.7% to 63%,<span class="elsevierStyleSup">22,23</span> kidney transplant patients 44%,<span class="elsevierStyleSup">8,30</span> patients with cancer in the head and neck 74%,<span class="elsevierStyleSup">25</span> patients with infection due to HIV/AIDS from 60.7% to 83.5%,<span class="elsevierStyleSup">7,26</span> and in DM patients from 68.9% to 86.5%.<span class="elsevierStyleSup">21,31</span></p><p class="elsevierStylePara"><span class="elsevierStyleItalic">C. glabrata</span> was the second most common <span class="elsevierStyleItalic">Candida</span> species, similar to that observed in another study on chronic dialysis patients.<span class="elsevierStyleSup">22</span> In our study, 8 patients simultaneously presented <span class="elsevierStyleItalic">C. glabrata</span> and another species, 4 of them without OC. This mixed colonisation may be a risk factor for developing more severe infections. <span class="elsevierStyleItalic">C. glabrata</span> has been shown to be the second most isolated species after <span class="elsevierStyleItalic">C. albicans</span> in patients with CKD and a renal transplant,<span class="elsevierStyleSup">8,22</span> cancer of the head and neck and haematological malignancies.<span class="elsevierStyleSup">25</span><span class="elsevierStyleItalic">C. glabrata</span> has been identified as an opportunistic species that in conditions of severe immunosuppression is associated with nosocomial infections, a long dwell time of intravenous catheters, the prophylactic use of antifungal medication (especially fluconazole) and the chronic use of DP.<span class="elsevierStyleSup">32</span> This species may cause severe oropharyngeal candidiasis, which is difficult to treat because it is innately less sensitive to fluconazole and itraconazole and results in higher mortality rates when candidaemia occurs.<span class="elsevierStyleSup">33 -35</span></p><p class="elsevierStylePara">OC is the most commonly reported opportunistic fungal infection in CKD patients, with frequencies ranging from 5.7% to 32%.<span class="elsevierStyleSup">15,17</span> In this study, OC was present in 17% of patients. The erythematous type was the most common (83%), and xerostomia was a major risk factor. It occurred on the dorsum of the tongue in all cases, with there being no difference between DM and non-DM. This prevalence is similar to that previously reported by us in CKD patients on HD,<span class="elsevierStyleSup">15</span> which suggests that the characteristics of our study population are similar in terms of systemic condition. Another factor associated with OC is a lower SF, which results in a loss of the defensive function of saliva.<span class="elsevierStyleSup">14,15</span> In this study, DM patients displayed lower SF and a higher frequency of xerostomia, but only xerostomia was associated with OC.</p><p class="elsevierStylePara">This study confirmed that the use of DP is a risk factor for colonisation and infection by <span class="elsevierStyleItalic">Candida</span>, as shown by the high odds ratio of 25.6 that we observed, since in 83% of patients who used a prostheses, the <span class="elsevierStyleItalic">Candida</span> was isolated. The use of DP is a risk factor for colonisation and/or infection by <span class="elsevierStyleItalic">Candida</span> in the OM and is due to a lack of hygienic care and its use over many years.<span class="elsevierStyleSup">5,23,24,32</span> DM patients on HD have a higher frequency of tooth loss, and as such, the use of this dental apparatus is common.<span class="elsevierStyleSup">36</span> Furthermore, it was confirmed that the adhesion capacity of the fungus to inert polymers such as acrylic resins, converts the latter into reservoirs, which favours colonisation and/or infection.<span class="elsevierStyleSup">3,5,32</span> Other authors found an association between the density of colonisation by the fungus and the progression time of kidney disease, but not of dialysis treatment,<span class="elsevierStyleSup">23,37</span> possibly due to the progressive deterioration caused by this disease.</p><p class="elsevierStylePara">CKD patients on dialysis have a high frequency of nutritional, immunological, and psychological disorders as well disorders from invasive procedures and antimicrobial treatments, which are known to contribute to the presence of a higher number of yeast colonies.<span class="elsevierStyleSup">12,13,29</span> Their peritoneal dialysis or HD treatment requires the introduction of central venous or peritoneal catheters, which, as has already been mentioned, are risk factors for invasive infections.<span class="elsevierStyleSup">38-40</span><span class="elsevierStyleSup"> </span>In this regard, the colonisation and/or infection by <span class="elsevierStyleItalic">Candida</span> at different anatomical sites, including the oropharyngeal<span class="elsevierStyleSup"> mucosa, increases the risk of candidaemia, through various mecanisms.</span><span class="elsevierStyleSup">17,28,41</span> The implication of this risk factor for CKD patients on dialysis has been poorly documented.</p><p class="elsevierStylePara">Furthermore, diabetes mellitus has been described as a risk factor for OM colonisation by <span class="elsevierStyleItalic">Candida.</span><span class="elsevierStyleSup">21,31</span> However, in the multiple logistic regression analysis of this study, it was ruled out as an independent risk factor for both colonisation and OC. One possible explanation is that ckd patients on dialysis may have deteriorated and have other systemic and local risk factors that are relatively more important. Female sex was observed to be only marginally more associated with the presence of <span class="elsevierStyleItalic">Candida</span> in the OM in contrast to that reported by other authors.<span class="elsevierStyleSup">31,42</span> Notably, an independent association was found between the presence of <span class="elsevierStyleItalic">Candida</span> colonising and/or infecting the OM and low serum albumin, which supports the notion that hypoalbuminaemia is a reflection of systemic deterioration, with there being a lower capacity to defend against microorganisms. While there have previously been reports on the association between low albumin and the female sex and diabetes in CKD patients on chronic dialysis, particularly peritoneal dialysis<span class="elsevierStyleSup">13</span> (where it is interpreted as a negative acute phase reactant),<span class="elsevierStyleSup">43</span> our study does not confirm this association, possibly due to the role of albumin as a marker, particularly of nutritional status in HD patients.</p><p class="elsevierStylePara"> </p><p class="elsevierStylePara"><span class="elsevierStyleBold">CONCLUSIONS</span></p><p class="elsevierStylePara"><br></br> This study was important for identifying the frequency of colonisation and infection by <span class="elsevierStyleItalic">Candida</span> in CKD patients on dialysis, since few studies have been carried out on this group of patients, which in Mexico represents high rates of morbidity and mortality. DM patients had lower SF (hyposalivation), higher xerostomia and low serum albumin, with the latter being a risk factor not previously described for the presence of <span class="elsevierStyleItalic">Candida</span> in the OM in these patients. We should be aware of the diversity found in <span class="elsevierStyleItalic">Candida</span> species, including some highly pathogenic species, such as <span class="elsevierStyleItalic">C. glabrata </span>and<span class="elsevierStyleItalic"> C. tropicalis</span>, in the treatment of these patients, since some of them have been reported in severe infections related to dialysis catheters.</p><p class="elsevierStylePara"> </p><p class="elsevierStylePara"><span class="elsevierStyleBold">Conflicts of interest</span></p><p class="elsevierStylePara"> </p><p class="elsevierStylePara">The authors declare that they have no conflicts of interest related to the contents of this article.</p><p class="elsevierStylePara"><a href="grande/11790_16025_52163_en_t1.11790.jpg" class="elsevierStyleCrossRefs"><img src="11790_16025_52163_en_t1.11790.jpg" alt="Demographic and clinical data of diabetic and non-diabetic patients with chronic kidney disease and chronic dialysis"></img></a></p><p class="elsevierStylePara">Table 1. Demographic and clinical data of diabetic and non-diabetic patients with chronic kidney disease and chronic dialysis</p><p class="elsevierStylePara"><a href="grande/11790_16025_52164_en_t2.11790.jpg" class="elsevierStyleCrossRefs"><img src="11790_16025_52164_en_t2.11790.jpg" alt="Oral characteristics and candidiasis in 136 patients with chronic kidney disease on dialysis"></img></a></p><p class="elsevierStylePara">Table 2. Oral characteristics and candidiasis in 136 patients with chronic kidney disease on dialysis</p><p class="elsevierStylePara"><a href="grande/11790_16025_52165_en_t3.11790.jpg" class="elsevierStyleCrossRefs"><img src="11790_16025_52165_en_t3.11790.jpg" alt="Distribution of Candida species in the oral mucosa of diabetic and non-diabetic patients on chronic dialysis"></img></a></p><p class="elsevierStylePara">Table 3. Distribution of Candida species in the oral mucosa of diabetic and non-diabetic patients on chronic dialysis</p><p class="elsevierStylePara"><a href="grande/11790_16025_52166_en_t4.11790.jpg" class="elsevierStyleCrossRefs"><img src="11790_16025_52166_en_t4.11790.jpg" alt="Risk factors for the presence of Candida (with or without candidiasis), in diabetic and non-diabetic patients on chronic dialysis"></img></a></p><p class="elsevierStylePara">Table 4. Risk factors for the presence of Candida (with or without candidiasis), in diabetic and non-diabetic patients on chronic dialysis</p>" "pdfFichero" => "P1-E562-S4403-A11790-EN.pdf" "tienePdf" => true "PalabrasClave" => array:2 [ "es" => array:6 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec439411" "palabras" => array:1 [ 0 => "Hemodiálisis" ] ] 1 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec439413" "palabras" => array:1 [ 0 => "Enfermedad renal crónica" ] ] 2 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec439415" "palabras" => array:1 [ 0 => "Albúmina sérica" ] ] 3 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec439417" "palabras" => array:1 [ 0 => "Diabetes mellitus" ] ] 4 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec439419" "palabras" => array:1 [ 0 => "Candida glabrata" ] ] 5 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec439421" "palabras" => array:1 [ 0 => "Candida albicans" ] ] ] "en" => array:6 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec439412" "palabras" => array:1 [ 0 => "Haemodialysis" ] ] 1 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec439414" "palabras" => array:1 [ 0 => "Chronic kidney disease" ] ] 2 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec439416" "palabras" => array:1 [ 0 => "Serum albumin" ] ] 3 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec439418" "palabras" => array:1 [ 0 => "Diabetes mellitus" ] ] 4 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec439420" "palabras" => array:1 [ 0 => "Candida glabrata" ] ] 5 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec439422" "palabras" => array:1 [ 0 => "Candida albicans" ] ] ] ] "tieneResumen" => true "resumen" => array:2 [ "es" => array:1 [ "resumen" => "<p class="elsevierStylePara"><span class="elsevierStyleBold">Introducción:</span> La candidosis bucal (CB) es una infección oportunista frecuente en el paciente inmunocomprometido y algunas veces es importante conocer la especie para el tratamiento. <span class="elsevierStyleBold">Objetivo: </span>Determinar la prevalencia de distintas especies de <span class="elsevierStyleItalic">Candida</span> colonizando o infectando la mucosa bucal (MB) de pacientes diabéticos (DM) y no diabéticos (no DM) con enfermedad renal crónica, comparando ambos grupos y explorando algunos posibles factores de riesgo. <span class="elsevierStyleBold">Metodología:</span> Se examinó a 56 pacientes DM y 80 no DM con diálisis crónica. Se tomaron muestras de la MB y se sembraron en agar placas dextrosa Sabouraud. La especie se identificó con galerías API<span class="elsevierStyleSup">®</span>. La CB se confirmó con citología exfoliativa. Las asociaciones se investigaron con χ<span class="elsevierStyleSup">2</span>, Prueva exacta (PE) de Fisher y regresión logística múltiple. <span class="elsevierStyleBold">Resultados</span><span class="elsevierStyleBold">: </span>La prevalencia de <span class="elsevierStyleItalic">Candida</span> fue del 43,4 %: 53,6 % DM y 36,2 % no DM (<span class="elsevierStyleItalic">p</span> = 0,045). Las especies fueron <span class="elsevierStyleItalic">C.</span> <span class="elsevierStyleItalic">albicans </span>74,6 %,<span class="elsevierStyleItalic"> C. glabrata</span> 22,0 %, <span class="elsevierStyleItalic">C</span>. <span class="elsevierStyleItalic">tropicalis</span> 15,2 %, <span class="elsevierStyleItalic">C.</span> <span class="elsevierStyleItalic">parapsilosis</span> 3,4 %,<span class="elsevierStyleItalic"> C. kefyr</span> 3,4 % y <span class="elsevierStyleItalic">C.</span> <span class="elsevierStyleItalic">famata</span> 1,7 % sin diferencia entre grupos. Los DM tuvieron mayor frecuencia de xerostomía (<span class="elsevierStyleItalic">p </span>= 0,002), flujo salival bajo (<span class="elsevierStyleItalic">p</span> = 0,008) y albúmina sérica más baja (<span class="elsevierStyleItalic">p</span> = 0,018). Tuvieron CB 16,9 %, 23,2 % DM frente a 12,5 % no DM (<span class="elsevierStyleItalic">p</span> = 0,101). Se asociaron a presencia de <span class="elsevierStyleItalic">Candida</span> en la MB: uso de prótesis (<span class="elsevierStyleItalic">odds ratio</span> [OR] 25,6, límite de confianza [LC] 95 % 2,5 a 253, <span class="elsevierStyleItalic">p</span> = 0,001), xerostomía (OR 9,6, LC 95 % 2,4 a 38,1<span class="elsevierStyleItalic">, p </span>= 0,001) y bajos valores de albúmina sérica (OR 0,41, LC 95 % 0,22 a 0,98, <span class="elsevierStyleItalic">p </span>= 0,044). <span class="elsevierStyleBold">Conclusiones:</span> La presencia de <span class="elsevierStyleItalic">Candida </span><span class="elsevierStyleItalic">sp.</span> en la MB se asoció a prótesis dental, xerostomía y albúmina sérica baja. </p>" ] "en" => array:1 [ "resumen" => "<p class="elsevierStylePara"><span class="elsevierStyleBold">Introduction:</span> Oral candidiasis (OC) is a common opportunistic infection in immunocompromised patients. Species identification is sometimes important for treatment.<span class="elsevierStyleBold"> Objective:</span> to determine the prevalence of different <span class="elsevierStyleItalic">Candida</span> species colonising or infecting the oral mucosa (OM) of diabetic (DM) and non-diabetic (non-DM) chronic kidney disease patients, comparing both groups and exploring potential risk factors. <span class="elsevierStyleBold">Methods: </span>56 DM and 80 non-DM patients on chronic dialysis were examined. OM swabs were cultured on Sabouraud dextrose agar plates. <span class="elsevierStyleItalic">Candida</span> species were identified with API<span class="elsevierStyleSup">®</span> galleries. OC was confirmed by exfoliative cytology. Statistical associations were analysed using χ<span class="elsevierStyleSup">2</span>, Fisher’s exact test (ET), and multiple logistic regression. <span class="elsevierStyleBold">Results: </span><span class="elsevierStyleItalic">Candida</span> prevalence was 43.4%: 53.6% DM and 36.3% non-DM, (<span class="elsevierStyleItalic">p</span>=.045). The species identified were C. <span class="elsevierStyleItalic">albicans </span>74.6%,<span class="elsevierStyleItalic"> C. glabrata</span> 22.0%, <span class="elsevierStyleItalic">C</span>. <span class="elsevierStyleItalic">tropicalis</span> 15.2%, <span class="elsevierStyleItalic">C.</span> <span class="elsevierStyleItalic">parapsilosis</span> 3.4 %<span class="elsevierStyleItalic">, C. kefyr</span> 3.4% and <span class="elsevierStyleItalic">C.</span> <span class="elsevierStyleItalic">famata</span> 1.7% without difference between groups. DM patients had a higher xerostomia prevalence (<span class="elsevierStyleItalic">p</span>=.002) and lower salivary flow (<span class="elsevierStyleItalic">p</span>=.008) and lower serum albumin (<span class="elsevierStyleItalic">p</span>=.018). 16.9% of patients had OC, 23.2% DM compared with 12.5% non-DM, (<span class="elsevierStyleItalic">p</span>=.101). The following were associated with the presence of <span class="elsevierStyleItalic">Candida</span> in the OM: the use of dental prostheses (odds ratio [OR] 25.6, 95% confidence interval [CI] 2.5 to 253, <span class="elsevierStyleItalic">P</span>=.001), xerostomia (OR 9.6, 95% CI 2.4 to 38.1, <span class="elsevierStyleItalic">P</span>=.001) and low serum albumin values (OR 0.41, 95% CI 0.22 to 0.98, <span class="elsevierStyleItalic">P</span>=.044). <span class="elsevierStyleBold">Conclusions:</span> The presence of <span class="elsevierStyleItalic">Candida </span>sp<span class="elsevierStyleItalic">.</span> in the OM was associated with dental prostheses, xerostomia and low serum albumin.</p>" ] ] "multimedia" => array:4 [ 0 => array:8 [ "identificador" => "fig1" "etiqueta" => "Tab. 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "copyright" => "Elsevier España" "figura" => array:1 [ 0 => array:4 [ "imagen" => "11790_16025_52163_en_t1.11790.jpg" "Alto" => 1278 "Ancho" => 2168 "Tamanyo" => 553643 ] ] "descripcion" => array:1 [ "en" => "Demographic and clinical data of diabetic and non-diabetic patients with chronic kidney disease and chronic dialysis" ] ] 1 => array:8 [ "identificador" => "fig2" "etiqueta" => "Tab. 2" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "copyright" => "Elsevier España" "figura" => array:1 [ 0 => array:4 [ "imagen" => "11790_16025_52164_en_t2.11790.jpg" "Alto" => 798 "Ancho" => 2180 "Tamanyo" => 231192 ] ] "descripcion" => array:1 [ "en" => "Oral characteristics and candidiasis in 136 patients with chronic kidney disease on dialysis" ] ] 2 => array:8 [ "identificador" => "fig3" "etiqueta" => "Tab. 3" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "copyright" => "Elsevier España" "figura" => array:1 [ 0 => array:4 [ "imagen" => "11790_16025_52165_en_t3.11790.jpg" "Alto" => 621 "Ancho" => 2166 "Tamanyo" => 135130 ] ] "descripcion" => array:1 [ "en" => "Distribution of Candida species in the oral mucosa of diabetic and non-diabetic patients on chronic dialysis" ] ] 3 => array:8 [ "identificador" => "fig4" "etiqueta" => "Tab. 4" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "copyright" => "Elsevier España" "figura" => array:1 [ 0 => array:4 [ "imagen" => "11790_16025_52166_en_t4.11790.jpg" "Alto" => 499 "Ancho" => 2183 "Tamanyo" => 139975 ] ] "descripcion" => array:1 [ "en" => "Risk factors for the presence of Candida (with or without candidiasis), in diabetic and non-diabetic patients on chronic dialysis" ] ] ] "bibliografia" => array:2 [ "titulo" => "Bibliography" "seccion" => array:1 [ 0 => array:1 [ "bibliografiaReferencia" => array:43 [ 0 => array:3 [ "identificador" => "bib1" "etiqueta" => "1" "referencia" => array:1 [ 0 => array:3 [ "referenciaCompleta" => "Cannon RD, Chaffin WL. 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Year/Month | Html | Total | |
---|---|---|---|
2024 November | 10 | 11 | 21 |
2024 October | 64 | 92 | 156 |
2024 September | 78 | 58 | 136 |
2024 August | 75 | 70 | 145 |
2024 July | 71 | 38 | 109 |
2024 June | 111 | 60 | 171 |
2024 May | 96 | 39 | 135 |
2024 April | 71 | 52 | 123 |
2024 March | 43 | 24 | 67 |
2024 February | 37 | 51 | 88 |
2024 January | 31 | 25 | 56 |
2023 December | 47 | 43 | 90 |
2023 November | 57 | 58 | 115 |
2023 October | 44 | 54 | 98 |
2023 September | 56 | 39 | 95 |
2023 August | 54 | 32 | 86 |
2023 July | 57 | 45 | 102 |
2023 June | 89 | 33 | 122 |
2023 May | 77 | 52 | 129 |
2023 April | 44 | 40 | 84 |
2023 March | 59 | 29 | 88 |
2023 February | 41 | 21 | 62 |
2023 January | 38 | 32 | 70 |
2022 December | 64 | 43 | 107 |
2022 November | 55 | 36 | 91 |
2022 October | 80 | 60 | 140 |
2022 September | 49 | 41 | 90 |
2022 August | 66 | 73 | 139 |
2022 July | 55 | 58 | 113 |
2022 June | 50 | 52 | 102 |
2022 May | 45 | 56 | 101 |
2022 April | 63 | 67 | 130 |
2022 March | 52 | 61 | 113 |
2022 February | 49 | 43 | 92 |
2022 January | 80 | 46 | 126 |
2021 December | 58 | 56 | 114 |
2021 November | 44 | 47 | 91 |
2021 October | 79 | 62 | 141 |
2021 September | 65 | 67 | 132 |
2021 August | 58 | 56 | 114 |
2021 July | 54 | 44 | 98 |
2021 June | 47 | 36 | 83 |
2021 May | 53 | 53 | 106 |
2021 April | 121 | 78 | 199 |
2021 March | 85 | 61 | 146 |
2021 February | 114 | 40 | 154 |
2021 January | 69 | 42 | 111 |
2020 December | 80 | 30 | 110 |
2020 November | 88 | 25 | 113 |
2020 October | 71 | 19 | 90 |
2020 September | 79 | 23 | 102 |
2020 August | 68 | 23 | 91 |
2020 July | 88 | 33 | 121 |
2020 June | 88 | 35 | 123 |
2020 May | 142 | 24 | 166 |
2020 April | 81 | 28 | 109 |
2020 March | 121 | 33 | 154 |
2020 February | 114 | 34 | 148 |
2020 January | 141 | 36 | 177 |
2019 December | 144 | 39 | 183 |
2019 November | 124 | 41 | 165 |
2019 October | 75 | 28 | 103 |
2019 September | 99 | 32 | 131 |
2019 August | 66 | 26 | 92 |
2019 July | 97 | 38 | 135 |
2019 June | 92 | 30 | 122 |
2019 May | 117 | 30 | 147 |
2019 April | 179 | 40 | 219 |
2019 March | 119 | 33 | 152 |
2019 February | 40 | 24 | 64 |
2019 January | 67 | 16 | 83 |
2018 December | 134 | 48 | 182 |
2018 November | 212 | 47 | 259 |
2018 October | 191 | 57 | 248 |
2018 September | 147 | 23 | 170 |
2018 August | 82 | 21 | 103 |
2018 July | 91 | 21 | 112 |
2018 June | 82 | 25 | 107 |
2018 May | 97 | 18 | 115 |
2018 April | 68 | 8 | 76 |
2018 March | 105 | 15 | 120 |
2018 February | 70 | 10 | 80 |
2018 January | 96 | 10 | 106 |
2017 December | 77 | 16 | 93 |
2017 November | 83 | 10 | 93 |
2017 October | 70 | 13 | 83 |
2017 September | 74 | 13 | 87 |
2017 August | 75 | 27 | 102 |
2017 July | 67 | 13 | 80 |
2017 June | 72 | 20 | 92 |
2017 May | 74 | 20 | 94 |
2017 April | 60 | 18 | 78 |
2017 March | 51 | 17 | 68 |
2017 February | 110 | 18 | 128 |
2017 January | 57 | 15 | 72 |
2016 December | 116 | 10 | 126 |
2016 November | 151 | 18 | 169 |
2016 October | 220 | 20 | 240 |
2016 September | 332 | 16 | 348 |
2016 August | 423 | 20 | 443 |
2016 July | 327 | 17 | 344 |
2016 June | 194 | 0 | 194 |
2016 May | 176 | 0 | 176 |
2016 April | 146 | 0 | 146 |
2016 March | 128 | 0 | 128 |
2016 February | 140 | 0 | 140 |
2016 January | 140 | 0 | 140 |
2015 December | 148 | 0 | 148 |
2015 November | 105 | 0 | 105 |
2015 October | 127 | 0 | 127 |
2015 September | 100 | 0 | 100 |
2015 August | 100 | 0 | 100 |
2015 July | 112 | 0 | 112 |
2015 June | 61 | 0 | 61 |
2015 May | 65 | 0 | 65 |
2015 April | 5 | 0 | 5 |