Enzymatic biomarkers of oxidative stress in patients with depressive disorders. A systematic review.

Oxidative stress (OS) results from the imbalance between the production of reactive oxygen species and the body's antioxidant mechanisms and is associated with various diseases, including depression. Antioxidants protect cells by neutralizing free radicals and include enzymatic components such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), glutathione reductase (GR), and glutathione S-transferase (GST). The concentration of these biomarkers can quantify OS. This research aimed to gather available information published in the last ten years about the concentration of enzymatic OS biomarkers in samples from patients with depressive disorders. METHOD: A systematic review was conducted following the PRISMA guidelines, including original scientific articles that evaluated enzymatic OS biomarkers in participants with depressive disorders, using the keywords and boolean operators "superoxide dismutase" OR "catalase" OR "glutathione" AND "depress*" in the databases PubMed, SAGE Journals, DOAJ, Scielo, Dialnet, and Redalyc. RESULTS: The initial search showed 614 results, with only 28 articles meeting the selection criteria. It was observed that all evaluated oxidative stress enzymatic markers showed a significant increase or decrease in patients with depressive disorders, due to a wide variability in the depressive disorders studied, the type of biological sample analyzed, and the techniques used. CONCLUSION: There is evidence of the relationship between enzymatic OS biomarkers and depressive disorders, but additional studies are needed to clarify the nature of this relationship, particularly considering the different types of depressive disorders.

Clinical standards for the diagnosis and management of asthma in low- and middle-income countries.

BACKGROUND: The aim of these clinical standards is to aid the diagnosis and management of asthma in low-resource settings in low- and middle-income countries (LMICs).METHODS: A panel of 52 experts in the field of asthma in LMICs participated in a two-stage Delphi process to establish and reach a consensus on the clinical standards.RESULTS: Eighteen clinical standards were defined: Standard 1, Every individual with symptoms and signs compatible with asthma should undergo a clinical assessment; Standard 2, In individuals (>6 years) with a clinical assessment supportive of a diagnosis of asthma, a hand-held spirometry measurement should be used to confirm variable expiratory airflow limitation by demonstrating an acute response to a bronchodilator; Standard 3, Pre- and post-bronchodilator spirometry should be performed in individuals (>6 years) to support diagnosis before treatment is commenced if there is diagnostic uncertainty; Standard 4, Individuals with an acute exacerbation of asthma and clinical signs of hypoxaemia or increased work of breathing should be given supplementary oxygen to maintain saturation at 94-98%; Standard 5, Inhaled short-acting beta-2 agonists (SABAs) should be used as an emergency reliever in individuals with asthma via an appropriate spacer device for metered-dose inhalers; Standard 6, Short-course oral corticosteroids should be administered in appropriate doses to individuals having moderate to severe acute asthma exacerbations (minimum 3-5 days); Standard 7, Individuals having a severe asthma exacerbation should receive emergency care, including oxygen therapy, systemic corticosteroids, inhaled bronchodilators (e.g., salbutamol with or without ipratropium bromide) and a single dose of intravenous magnesium sulphate should be considered; Standard 8, All individuals with asthma should receive education about asthma and a personalised action plan; Standard 9, Inhaled medications (excluding dry-powder devices) should be administered via an appropriate spacer device in both adults and children. Children aged 0-3 years will require the spacer to be coupled to a face mask; Standard 10, Children aged <5 years with asthma should receive a SABA as-needed at step 1 and an inhaled corticosteroid (ICS) to cover periods of wheezing due to respiratory viral infections, and SABA as-needed and daily ICS from step 2 upwards; Standard 11, Children aged 6-11 years with asthma should receive an ICS taken whenever an inhaled SABA is used; Standard 12, All adolescents aged 12-18 years and adults with asthma should receive a combination inhaler (ICS and rapid onset of action long-acting beta-agonist [LABA] such as budesonide-formoterol), where available, to be used either as-needed (for mild asthma) or as both maintenance and reliever therapy, for moderate to severe asthma; Standard 13, Inhaled SABA alone for the management of patients aged >12 years is not recommended as it is associated with increased risk of morbidity and mortality. It should only be used where there is no access to ICS.The following standards (14-18) are for settings where there is no access to inhaled medicines. Standard 14, Patients without access to corticosteroids should be provided with a single short course of emergency oral prednisolone; Standard 15, Oral SABA for symptomatic relief should be used only if no inhaled SABA is available. Adjust to the individual's lowest beneficial dose to minimise adverse effects; Standard 16, Oral leukotriene receptor antagonists (LTRA) can be used as a preventive medication and is preferable to the use of long-term oral systemic corticosteroids; Standard 17, In exceptional circumstances, when there is a high risk of mortality from exacerbations, low-dose oral prednisolone daily or on alternate days may be considered on a case-by-case basis; Standard 18. Oral theophylline should be restricted for use in situations where it is the only bronchodilator treatment option available.CONCLUSION: These first consensus-based clinical standards for asthma management in LMICs are intended to help clinicians provide the most effective care for people in resource-limited settings.

Role of selected salivary inflammatory cytokines in the diagnosis and prognosis of oral squamous cell carcinoma. A Systematic Review and Meta-analysis.

BACKGROUND: Oral squamous cell carcinoma (OSCC) is gradually increasing its incidence in our society. Unfortunately, this entity is diagnosed at an advanced stage in most patients, a fact that implies greater difficulty in its treatment and a worse prognosis. This systematic review aims to assess whether the cytokines IL-6, IL-8 and TNF-α are potential salivary biomarkers that allow early diagnosis of cancer. MATERIAL AND METHODS: An electronic search was performed in three databases (Pubmed, Scopus and Web of Science). We used the following keywords: "salivary cytokines", "saliva cytokines", "salivary interleukins", "biomarkers", "oral squamous cell carcinoma" and "diagnosis", combined with the Boolean operators "AND" and "OR". RESULTS: 128 publications were found and finally 23 articles were included in the review and 15 in the meta-analysis. It has been observed that the majority of OSCC patients express higher salivary concentrations of IL-6, IL-8 and TNF-α compared to the control (CL) and premalignant lesion (OPML) groups. It has also been observed that the different premalignant lesions do not have statistically significant differences in the salivary concentration of the cytokines, and on the other hand, differences have been observed between the different TNM stages. The meta-analysis has shown that the difference in concentration of IL-6, IL-8 and TNF-α is statistically significant between the CL group and the OSCC, and also between the CL group and OPML. CONCLUSIONS: There is sufficient evidence to affirm that IL-6, IL-8 and TNF-α are useful salivary cytokines in the early diagnosis and prognosis of OSCC. Although future studies are necessary to establish greater reliability of these biomarkers and thus be able to develop a valid diagnostic test.

Diabetes mellitus: Lessons from COVID-19 for monkeypox infection.

BACKGROUND AND AIMS: Type 2 Diabetes Mellitus is known to be linked to malfunctioning antiviral defense; however, its association with the severity of monkeypox is poorly understood. In this review, we discuss key immunological mechanisms in the antiviral response affected by poor glucose control that could impact the susceptibility and severity of monkeypox infection, leading to a heightened emphasis on the use of the available antidiabetic drugs. METHODS: We searched PubMed and Google scholar for articles published from January 1985 to August 2022. No criteria for publication data were set, and all articles in English were included. RESULTS: Currently, there are no studies about the risk or consequences of monkeypox infection in the diabetic population. A high incidence of diabetes is reported in countries such as China, India, Pakistan, EUA, Indonesia, Brazil, Mexico, Bangladesh, Japan, and Egypt, where unfortunately imported cases of monkeypox have been reported and the infection continues to spread. CONCLUSIONS: High incidence of diabetes together with the cessation of smallpox vaccination has left large numbers of the human population unprotected against monkeypox. The best option for the population remains confined to the prevention of infection as well as the use of hypoglycemic agents that have also been shown to improve immune mechanisms associated with viral protection.

Treatment of recurrent aphtous stomatitis: A systematic review.

BACKGROUND: Recurrent Aphtous Stomatitis (RAS) is the most common process affecting the oral mucosa. It is painful, multifactorial and generally recurrent. The aim of this systematic review is to know the last treatment approaches and their effectivity. MATERIAL AND METHODS: we compared the outcome of different kind of treatments in terms of the improvement of the lesions, reduction of the size of those lesions and the time needed for their healing. Inclusion criteria were: clinical trials, articles written in English or Spanish and published less than 5 years ago. RESULTS: we used the following keywords: "treatment", "aphtous stomatitis", "canker sores"; combined with Boolean operators AND y OR. We selected 28 articles for reading the whole text, and after applying the eligibility criteria, we selected 17 articles for our revision. Among all the treatments, we emphasize the barrier method based in compound of cellulose rubber and a calcium/sodium copolymer PVM/MA, with which the difference in the 3rd and 7th day was of -6,29 ± 0,14 points in the pain score. The treatment with insulin and chitosan gel, brought a pain suppression on the third day, with no reactivation of the pain during the whole study. The application of a film composed of polyurethane and sesame oil with chitosan, brought a reduction in the size of the lesions of 4,54 ± 2,84mm on the 6th day compared with the situation before the beginning of the treatment. The different kinds of laser, which produced a reduction in the pain score just at the beginning of the treatment up to 8,1 ± 1,6 points, and a reduction of the size of the lesions of 4,42 ± 1,02mm on the 7th day. CONCLUSIONS: Besides the classic treatments for RAS, we have to take into account other treatment modalities, above all the different kinds of laser.

Enfermedades periodontales necrotizantes: factores de riesgo y tratamiento. Revisión sistemática / Necrotizing periodontal diseases: risk factors and treatment. A systematic review

Introducción: Las enfermedades periodontales necrotizantes son cuadros agudos que se acompañan de signos y síntomas locales y sistémicos que se caracterizan por la necrosis de tejidos gingivales, periodontal, pudiendo incluir otros tejidos orales dependiendo de la severidad de la infección. En esta revisión sistemática queremos evaluar cuáles son los factores predisponentes de mayor relevancia para el desarrollo de estas infecciones, así como las medidas terapéuticas más efectivas para tratarlas. Material y métodos: Realizamos una búsqueda bibliográfica en tres bases de datos (PubMed, Cochrane y Scopus) de los últimos 10 años. Se usaron las siguientes palabras clave: “necrotisingulcerative gingivitis”, “necrotising ulcerative periodontitis”, “necrotising ulcerative stomatitis” y “aetiology”; combinados con los operadores boleanosAND y OR. Resultados: Después de aplicar los criterios de exclusión, quedan 19 artículos. Entre los factores de riesgo más importantes encontramos la malnutrición severa, la mala higiene oral y los depósitos de placa dental, las infecciones previas y los cuadros de inmunosupresión. En cuanto a las intervenciones terapéuticas, la literatura destaca el desbridamiento supra y subgingival. La terapia farmacológica más utilizada es el metronidazol como monoterapia o combinado con amoxicilina. Los coadyuvantes más empleados fueron los colutorios de clorhexidina y el peróxido de hidrógeno. Conclusiones: Las enfermedades periodontales necrotizantes son entidades de etiología mayormente bacteriana inespecífica que están sujetas a factores causales que afectan al estado general del paciente. El tratamiento de las mismas se basa en el control de los factores de riesgo a la vez que se soluciona la infección. (AU)

Introduccion: Periodontal necrotising diseases are acute conditions accompanied by local and systemic signs and symptoms characterised by gingival tissues necrosis; however, they can include periodontal or other oral tissues depending on the severity of the infection. In this systematic review we want to evaluate which are the most relevant predisposing factors for the development of these infections, as well as the therapeutic approaches that have shown affectivity against them. Material and methods: A bibliographic search of the last 10 years was conducted in three databases (PubMed, Cochrane y Scopus). We used the following keywords: “necrotising ulcerative gingivitis”, “necrotising ulcerative periodontitis” , “necrotising ulcerative stomatitis” y “aetiology”; combining them with Boolean operators (AND and OR). Results: After applying the exclusion criteria, 19 papers remained. Among the most important risk factors we found severe malnutrition, the bad oral hygiene and deposits of tartar, previous infections and immunosuppression. Regarding to therapeutic interventions, literature highlights supragingival and subgingival debridement. The most used pharmacological strategy is monotherapy with metronidazole or combined with amoxicillin. The most used adjuvant treatments are chlorhexidine and peroxide mouthwashes. Conclusions: Periodontal Necrotising diseases are entities which have a mainly unspecific bacterial cause and depend on causative factors that affect to patient's general state. Their treatment is based on the control of risk factors while we solve the infection. (AU)

Papel de la histamina en el Liquen Plano Oral, Leucoplasia y en el Carcinoma Oral de Células Escamosas. Revisión sistemática / Role of histamine in Oral Lichen Planus, Leukoplakia and in Squamous-Cell Oral Carcinoma. Systematic review

Introducción: Los queratinocitos presentes en las células epiteliales del cuerpo humano producen, de manera continuada, pequeñas cantidades de histamina que se mantienen en equilibrio en el epitelio oral. Cuando este equilibro se ve alterado, se produce un aumento de histamina en el tejido oral pudiendo provocar lesiones. Objetivo: En este trabajo de revisión se estudia la relación del exceso de histamina en el Liquen Plano Oral, la Leucoplasia oral y en el Carcinoma Oral de Células Escamosas. Material y método: Búsqueda bibliográfica en la literatura de estudios caso control y retrospectivos acerca del papel de la histamina en el Liquen Plano Oral, la Leucoplasia Oral y el Carcinoma Oral de Células Escamosas. Resultados: Se ha observado un aumento del número de mastocitos y de histamina en los tejidos orales con patología comparado con los tejidos sanos. Conclusión: Este aumento del número de mastocitos y de histamina en los tejidos orales con patología, provocan una desorganización en los precursores de la inflamaciónpudiendo así dañar el epitelio oral. (AU)

Introduction: Keratinocytes present in the epithelial cells of the human body produced, continuously, small amounts of histamine that are kept in balance in the oral epithelium. When this balance is disturbed, there is an increase in histamine in the oral tissue and it can cause injuries. Objective: In this review work we studied the relationship of excess histamine in Oral Lichen Planus, oral Leukoplakia and Oral Squamous Cell Carcinoma. Material and Method: Bibliographic search of the literature of case control and retrospective studies about the role of histamine in Oral Lichen Planus, Oral Leukoplakia and Oral Squamous Cell Carcinoma. Results: An increase in the number of mast cells and histamine has been observed in oral tissues with pathology compared to healthy tissues. Conclusion: This increase in the number of mast cells and histamine in oral tissues with pathology can cause disorganization in the precursors of inflammation and thus can further damage the oral tissue. (AU)

Incidence rate of metastases in the oral cavity: a review of all metastatic lesions in the oral cavity.

BACKGROUND: Metastases in the oral cavity are rare and account for only 1 to 3% of all malignant lesions in this area. The primary location from which most metastases have been described in the oral cavity in adult patients include lungs, breasts, kidneys and colon. MATERIAL AND METHODS: A systematic search of the literature was carried out following the PRISMA statement in PubMed database. Clinical trials and case series published in the last 10 years [2010-2020] were eligible to be selected. The headings and keywords used in the searches were "cancer" AND "oral metastases", "incidence" AND "oral metastases", "oral metastases" AND "jaw bone", "oral metastases" AND "soft tissue". RESULTS: For the study of the incidence of metastases in the oral cavity, 9 reports of clinical trials and 7 retrospective studies of case series have been included in this article. The primary locations from which more metastases have been described in the oral cavity are lungs (30.6% or 183 cases), breasts (22.2% or 133 cases), liver (15.5% or 93 cases), prostate (9 % or 54 cases), thyroid glands (8.1% or 49 cases), kidneys (7.3% or 44 cases), skin (2.3% or 14 cases), soft tissues (2% or 12 cases), colon (2% or 12 cases) and gastrointestinal (0.6% or 4 cases). These metastases have a predilection for hard tissues. The clinical presentation of these lesions varies from painless granulomatous lesions to lytic areas in the jaws. CONCLUSIONS: Although metastases in the oral cavity is an uncommon pathology, early diagnosis is needed so that in the event that it is the first manifestation, it allows the primary tumor to be diagnosed as soon as possible.

Actualización y optimización de la vigilancia activa en cáncer de próstata en 2021 / Update and optimization of active surveillance in prostate cancer in 2021

INTRODUCCIÓN Y OBJETIVOS: Dentro del cambio de paradigma de la última década en el manejo del cáncer de próstata (CaP), quizás el hecho más relevante haya sido la irrupción de la vigilancia activa (VA) como estrategia obligada en el de bajo riesgo. Realizamos una revisión crítica de las mejoras clínicas, anatomopatológicas y radiológicas que permiten optimizar la VA en 2021. MATERIAL Y MÉTODOS: Revisión crítica narrativa de la literatura en los temas de mejora y en los aspectos controvertidos de la VA. RESULTADOS: El buen uso de los criterios clásicos, optimizados por una mejor técnica de biopsia y cálculo del volumen prostático gracias a la resonancia magnética multiparamétrica (RMmp), permite una mejor selección de pacientes para VA. No se debe restringir la VA en menores de 60 años y se debe seleccionar qué pacientes con CaP de riesgo intermedio pueden incluirse en VA. Las biopsias siguen siendo necesarias en el seguimiento, pero este se puede individualizar según patrones de riesgo. El patólogo ha de reseñar el patrón cribiforme o intraductal en las biopsias para no ser incluidos en VA, al igual que los pacientes con alteraciones en los genes de reparación del ADN. CONCLUSIONES: Se debe seguir optimizando las indicaciones controvertidas, como la inclusión de pacientes de grupo intermedio o el paso a tratamiento activo por progresión exclusiva en volumen tumoral. Es posible que el concurso futuro de biomarcadores tisulares, el refinamiento de parámetros objetivos de la RMmp y la validación de calculadoras cinéticas del PSA puedan subestratificar grupos de riesgo

INTRODUCTION AND OBJECTIVES: Within the paradigm shift of the last decade in the management of prostate cancer (PCa), perhaps the most relevant event has been the emergence of active surveillance (AS) as a mandatory strategy in low-risk disease. We carry out a critical review of the clinical, pathological and radiological improvements that allow optimizing AS in 2021. MATERIAL AND METHODS: Critical narrative review of the literature on improvement issues and controversial aspects of AS. RESULTS: Adequate use of traditional criteria, optimized by enhanced biopsy and calculation of the prostate volume technique thanks to multiparametric magnetic resonance imaging (mpMRI) allow a better selection of patients for AS. This management should not be limited to patients under 60years of age, and patients with intermediate-risk PCa should be carefully selected to be included. Biopsies are still required in the follow-up, which can be personalized according to risk patterns. The pathologist must identify the cribriform or intraductal histology on biopsies in order to exclude these patients from AS, in the same way as with patients with alterations in DNA repair genes. CONCLUSIONS: Controversial indications such as the inclusion of patients from intermediate-risk groups, or the transition to active treatment due to exclusive progression in tumor volume, should be further optimized. It is possible that the future competition of tissue biomarkers, the refinement of objective parameters of mpMRI and the validation of PSA kinetics calculators may sub-stratify risk groups

Update and optimization of active surveillance in prostate cancer in 2021. / Actualización y optimización de la vigilancia activa en cáncer de próstata en 2021.

INTRODUCTION AND OBJECTIVES: Within the paradigm shift of the last decade in the management of prostate cancer (PCa), perhaps the most relevant event has been the emergence of active surveillance (AS) as a mandatory strategy in low-risk disease. We carry out a critical review of the clinical, pathological and radiological improvements that allow optimizing AS in 2021. MATERIAL AND METHODS: Critical narrative review of the literature on improvement issues and controversial aspects of AS. RESULTS: Adequate use of traditional criteria, optimized by enhanced biopsy and calculation of the prostate volume technique thanks to multiparametric magnetic resonance imaging (mpMRI) allow a better selection of patients for AS. This management should not be limited to patients under 60years of age, and patients with intermediate-risk PCa should be carefully selected to be included. Biopsies are still required in the follow-up, which can be personalized according to risk patterns. The pathologist must identify the cribriform or intraductal histology on biopsies in order to exclude these patients from AS, in the same way as with patients with alterations in DNA repair genes. CONCLUSIONS: Controversial indications such as the inclusion of patients from intermediate-risk groups, or the transition to active treatment due to exclusive progression in tumor volume, should be further optimized. It is possible that the future competition of tissue biomarkers, the refinement of objective parameters of mpMRI and the validation of PSA kinetics calculators may sub-stratify risk groups.

Sífilis: manifestaciones orales, revisión sistemática / Syphilis: oral manifestations, systematic review

INTRODUCCIÓN: la sífilis es una infección bacteriana, que se puede transmitir por contacto sexual o de forma congénita. Esta enfermedad consta de tres estadios, en los cuales se pueden dar diferentes manifestaciones orales. MATERIAL Y MÉTODO: se realizó una búsqueda en la base de datos PubMed, utilizándose como palabras clave: "sexually transmitted diseases", "venereal diseases", "syphilis", "primary syphilis", "secondary syphilis", "tertiary syphilis", "oral manifestations", "oral lesions". Como criterios de inclusión se emplearon: series de casos, estudios en los que el tema principal fueran las manifestaciones orales de la sífilis y trabajos en inglés y español. No hubo restricción por fecha. RESULTADOS: se seleccionaron un total de 18 artículos, la N total de pacientes fue de 201. El 10,05% padecía sífilis primaria, el 52,76% sífilis secundaria y el 36, 68% sífilis terciaria. Las lesiones orales predominantes de la sífilis primaria fueron úlceras, inflamación, chancro sifilítico; en la sífilis secundaria se apreciaban placas mucosas, lesiones eritematosas, inflamación, lesiones papulares, lesiones maculares, lesiones erosivas; en la sífilis terciaria aparecen gomas sifilíticos, lesiones leucoplásicas y atrofia lingual. DISCUSIÓN: la sífilis es una infección bacteriana que puede simular diversas enfermedades, es muy importante tenerla en cuenta a la hora de realizar el diagnóstico diferencial de diversas lesiones orales, sobre todo aquellas que se presentan de forma ulcerosa, indurada y asintomática

INTRODUCTION: syphilis is a bacterial infection, which is transmitted by sexual contact or congenitally. This disease develops in three stages, in which different oral manifestations can occur. MATERIAL AND METHOD: a search was made in the PubMed database, using as keywords: "sexually transmitted diseases", "venereal diseases", "syphilis", "primary syphilis", "secondary syphilis", "tertiary syphilis", "Oral manifestations", "oral lesions". The inclusion criteria were: case series, studies in which the main theme was the oral manifestations of syphilis and works in English and Spanish. There was no restriction by date. RESULTS: a total of 18 articles were selected, the total sample of patients was 201. 10.05% had primary syphilis, 52.76% secondary syphilis and 36, 68% tertiary syphilis. The predominant oral lesions of primary syphilis were ulcers, inflammation, syphilitic chancre; in secondary syphilis there were mucous patches, erythematous lesions, inflammation, papular lesions, macular lesions, erosive lesions; in tertiary syphilis, syphilitic gums, leukoplastic lesions and lingual atrophy. DISCUSSION: Syphilis is a bacterial infection that can simulate various diseases, it is very important to take it into account when making the differential diagnosis of various oral lesions, especially those that occur in an ulcerative, indurated and asymptomatic form

Technical opinion of the Asociación Mexicana de Gastroenterología on soy plant-based beverages. / Posición técnica de la Asociación Mexicana de Gastroenterología sobre las bebidas vegetales a base de soya.

There has been a recent increase in the consumption of cow's milk substitutes, specifically plant-based beverages, which have erroneously been named "plant milks". Plant-based beverages do not have a standard of identity, and so their nutritional composition can vary from one brand to another, even within the same category. The aim of the present narrative review was to produce a technical opinion to serve as a frame of reference for sustaining the recommendation of soy plant-based beverages. Nutrition and gastroenterology experts that belong to the Asociación Mexicana de Gastroenterología jointly commented on and analyzed themes on plant-based beverages, and on soy drinks in particular, including their nutritional characteristics, consumption in children, and potential growth and development alterations, as well as soy drink consumption in adults and its association with gastrointestinal alterations and other conditions. Plant-based beverages, including those made from soy, are not a replacement for breastmilk or breastmilk substitutes. Soy beverages are considered safe and can enrich the varied diet of its consumers, as long as they are considered an additional liquid portion of the diet. They can be ingested by adults and children above two years of age that present with cow's milk protein allergy or lactose intolerance.

Antifungal sensitivity and species of yeasts in oral mucosa of street mixed-breed dogs.

The aim of this research is to verify the yeast species isolated from oral mucosa in street mixed-breed dogs and to determine the antifungal profiles. After capturing and sedating the animals, oral mucosa samples were collected from fifty dogs and the materials were inoculated on Sabouraud dextrose agar with chloramphenicol. Forty-three yeast strains were isolated and identified trough the API-20C AUX method. Thirty-seven (86.1%) of the yeasts belonged to genus Candida, five (11.6%) to genus Trichosporon and only one strain (2.3%) to genus Malassezia. The sensitivity profiles to anifungals (amphotericin B, itraconanole, ketoconazole, fluconazole and variconazole) were determined through Etest® method. This study found resistance of some yeasts to amphotericin B and a good susceptibility to voriconazole and ketoconazole. Some of these antifungals are used in veterinary medical practice. This research is the first investigation on street mixed-breed dogs regarding yeast identifications and antifungals profiles.

Serum Amyloid A1 as a Potential Intracranial and Extracranial Clinical Severity Biomarker in Traumatic Brain Injury.

Extracranial injury is frequently present in patients with traumatic brain injury (TBI). However, no reliable biomarker exists nowadays to evaluate the magnitude and extension of extracranial injury as well as the identification of patients who are at risk of developing secondary injuries. The purpose of this study was to identify new possible peptide biomarkers by mass spectrometry analysis in patients with TBI and ascertain whether the novel biomarker discovered by peptide mass fingerprinting, serum amyloid A1 (SAA1), is capable of reflecting the condition of the patient and both intracranial and extracranial injury extension. Demographic characteristics, clinical data, and serum samples were prospectively collected from 120 patients with TBI (Glasgow Coma Scale [GCS] score 3-15) on admission. Biomarkers were quantified by enzyme-linked immunosorbent assay. Intracranial lesion volume was measured from the semiautomatic segmentation of hematoma on computed tomography (CT) using Analyze software. Functional outcome was evaluated using the Glasgow Outcome Scale (GOS) at hospital discharge and GOS extended scores at 6 months. The SAA1 levels were significantly associated with intracranial (GCS score at admission, lesion load measured with cranial CT, and pupil responsiveness) and extracranial clinical severity (all Abbreviated Injury Scale regions, Injury Severity Score, major extracranial injury, polytrauma, and orthopedic fractures presence), along with systemic secondary insults and functional outcome. SAA1 was is associated with the volume of traumatic intracranial lesions. The SAA1 levels were correlated with astroglial S100ß and glial fibrillary acidic protein (GFAP), neuronal neuron-specific enolase (NSE), and axonal total tau (T-tau) and phosphorylated neurofilament heavy chain (pNF-H) injury markers. SAA1 predicts unfavorable outcome and mortality at hospital discharge (area under the curve [AUC] = 0.90, 0.82) and 6 months (AUC = 0.89). SAA1 can be established as a marker for the overall patient condition due to its involvement in the neuroendocrine axis of the systemic response to craniocerebral trauma.

B subset cells in patients with chronic granulomatous disease in a Mexican population.

INTRODUCTION: Chronic granulomatous disease (CGD) is a disorder of phagocyte function, characterized by pyogenic infections and granuloma formation caused by defects in NADPH oxidase complex activity. Although the effect of CGD mainly reflects the phagocytic compartment, B cell responses are also impaired in patients with CGD. MATERIALS AND METHODS: Flow cytometric analysis was performed on peripheral blood samples from 35 CGD patients age-matched with healthy controls (HC). The target cells of our study were the naive (IgD+/CD27-), memory (IgD-/CD27+), and B1a (CD5+) cells. Immunoglobulins (Igs) were also measured. This study was performed in a Latin American cohort. RESULTS: We found significantly higher levels of naive B cells and B1a cells, but lower levels of memory B cells were found in CGD patients compared to HC. There was no significant difference of cell percentages per inheritance type. DISCUSSION: Our findings suggest that the deficiency of NADPH oxidase components can affect the differentiation of naive B cells to memory B cells. Consequently, memory cells will be low, which also influenced the expression of CD27 in memory B cells and as a result, the percentage of naive cells increases. An altered phenotype of B lymphocytes in CGD patients may contribute to the opportunistic infections and autoimmune disorders that are seen in this disease.

Microdeletion 22q11.2 syndrome: Does thymus incidental surgical resection affect its immunological profile?

BACKGROUND: The del22q11 syndrome patients present immunological abnormalities associated to thymus alterations. Up to 75% of them present cardiopathies and thymus is frequently removed during surgery. The thymectomy per se has a deleterious effect concerning lymphocyte subpopulations, and T cell function. When compared to healthy controls, these patients have higher infections propensity of variable severity. The factors behind these variations are unknown. We compared immunological profiles of del22q11.2 Syndrome patients with and without thymectomy to establish its effect in the immune profile. METHODS: Forty-six del22q11.2 syndrome patients from 1 to 16 years old, 19 of them with partial or total thymectomy were included. Heart disease type, heart surgery, infections events and thymus resection were identified. Immunoglobulin levels, flow cytometry for lymphocytes subpopulations and TREC levels were determined, and statistical analyses were performed. RESULTS: The thymectomy group had a lower lymphocyte index, both regarding total cell count and when comparing age-adjusted Z scores. Also, CD3+, CD4+ and CD8+ lower levels were observed in this group, the lowest count in those patients who had undergone thymus resection during the first year of life. Their TREC level median was 23.6/µL vs 16.1µL in the non-thymus group (p=0.22). No differences were identified regarding immunoglobulin levels or infection events frequencies over the previous year. CONCLUSION: Patients with del22q11.2 syndrome subjected to thymus resection present lower lymphocyte and TREC indexes when compared to patients without thymectomy. This situation may be influenced by the age at the surgery and the time elapsed since the procedure.

Amoxicillin-induced aseptic meningitis: 2 case reports and appraisal of the literature

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Periodontal treatment on patients with cardiovascular disease: Systematic review and meta-analysis.

BACKGROUND: Atherosclerotic cardiovascular disease is the main cause of mortality in developed countries. It is a chronic and systemic inflammatory disease with a multifactorial etiology. Periodontal disease is one of the many factors that contribute to its development. OBJECTIVE: To analyze the effects of periodontal treatment on cardiovascular risk parameters in patients with atherosclerotic cardiovascular disease. METHODS: A systematic research was conducted in the Pubmed/Medline databases for clinical trials published up to and including the year 2017. RESULTS: Ten articles were included for analysis. Periodontal treatment reduced C-reactive protein levels (77.8% of clinical trials), tumor necrosis factor-alpha (66.7%), interleukin-6 (100%) and leukocytes (50%). Fibrinogen levels also improved considerably (66.7%). Effects on lipid parameters were more limited, whereby only oxidized low density lipoprotein and very low density lipoprotein cholesterol decreased significantly. Meta-analysis showed a statistically significant decreased in C-reactive protein and leukocytes values when patients were submitted to non-surgical periodontal treatment in contrast to receiving no treatment at all (mean difference 1.199 mg/L, 95% confidence interval: 1.100-1.299, p<0.001; and mean difference 0,79 g/L, 95% confidence interval: 0.717-0.879, p<0.001, respectively). CONCLUSIONS: Periodontal treatment has a beneficial effect on some of the biochemical parameters considered to represent cardiovascular risk. Further randomized clinical trials are necessary, with longer follow-up periods including regular periodic monitoring, in order to determine the extent of the impact of periodontal treatment.