Effects of ß-lapachone and ß-nor-lapachone on multidrug efflux transporters and biofilms of Candida glabrata.

Infections caused particularly by Candida glabrata are hard to treat due to the development of antifungal resistance that occurs mainly through the production of efflux pumps and biofilm. Thus, a promising strategy to overcome infections caused by C. glabrata could be to use a substance able to inhibit efflux pumps and eradicate biofilms. Lapachones are natural naphthoquinones that possess a variety of pharmacological properties. Previous studies show that these substances inhibit the growth, virulence factors and efflux pumps of C. albicans. The aim of the present study was to evaluate whether lapachones are able to inhibit efflux pumps related to antifungal resistance in C. glabrata and either prevent biofilm formation or affect mature biofilms. Assays were performed with Saccharomyces cerevisiae strains that overexpress C. glabrata transporters (CgCdr1p and CgCdr2p). One C. glabrata clinical isolate that overexpresses CgCdr1p was also used. Both ß-lapachone and ß-nor-lapachone affected the growth of S. cerevisiae and C. glabrata when combined to fluconazole, and this action was inhibited by ascorbic acid. Both lapachones stimulated ROS production, inhibited efflux activity, adhesion, biofilm formation and the metabolism of mature biofilms of C. glabrata. Data obtained on the present study point to the potential use of ß-lapachone and ß-nor-lapachone as antibiofilm agents and adjuvants on the antifungal therapy related to resistant infections caused by C. glabrata.

IgA nephropathy in IgG kappa multiple myeloma.

Multiple myeloma (MM) frequently affects kidney function through multiple mechanisms. Nonetheless, some patients develop kidney injury due to other causes. A 54-year-old woman was diagnosed with IgG kappa MM developed IgA nephropathy without cast nephropathy. Further studies did not show criteria for MM progression or other causes. This case highlights the need for further investigation of kidney injury in MM patients (such as toxicity of previous drugs, infectious events, or immune-mediated disorders).

Case Report: Pseudoxanthoma elasticum.

Pseudoxanthoma elasticum (PXE) is a rare inherited disorder, characterised by a progressive mineralization and fragmentation of elastic fibres of the skin, retina and cardiovascular system. At an initial stage, the skin usually exhibits distinctive lesions and subsequently extra-dermal manifestations. The diagnosis is based on clinical manifestations, histological analysis of the lesions and genetic analysis. This is a case report of a 12-year-old child complaining of painless, mildly itchy yellow papules in the cervical region with 1 year of evolution. PXE is currently an incurable disease and has a favourable prognosis when cardiovascular and retinal complications are prevented and monitored.

Association of Multiple Myeloma and Giant Cell Arteritis - A Case Report.

Autoimmune diseases (AID) have been associated with a variety of lymphoproliferative disorders. Multiple myeloma (MM), one of the most common haematologic malignancies characterized by clonal proliferation of bone marrow plasma cells, has been associated with a range of autoimmune disorders. In this report, we described a case study of a patient admitted to our Internal Medicine Department for a bone marrow biopsy and myelogram due to a monoclonal peak observed by his general practitioner. However, at admission he presented typical giant cell arteritis (GCA) complaints, suggesting the coexistence of both diseases. The possible pathogenesis, as found in the literature, explaining the association will be discussed. LEARNING POINTS: A relationship between AID and lymphoproliferative diseases, although rare, may occur and some studies suggest that the diagnosis of autoimmune disease has a negative impact on survival in MM patients.Bone marrow plasmacytosis can present a diagnostic dilemma, since it may be due to neoplastic or non-neoplastic conditions (that is, reactive plasmacytosis associated with AID, chronic infection, metastatic carcinoma, liver diseases and acquired immunodeficiency).Immunophenotyping in a myelogram or immunohistochemistry in bone marrow studies are useful in confirming a monoclonal plasma cell proliferation.

Myeloid Disease with the CSF3R T618I Mutation after CLL.

Chronic lymphocytic leukemia (CLL) is frequently an indolent diagnosis, with most of the patients being under surveillance for long time. There is an increased risk of a second neoplasia in CLL, rarely hematological (in the myeloid lineage is even rarer). A 58-year-old male was diagnosed with CLL in 2012, remaining in regular surveillance until 2014. Then, the CLL progressed, and 6 cycles of rituximab, fludarabine, and cyclophosphamide were prescribed with partial response. He remained in surveillance and suffered 2 episodes of autoimmune hemolytic anemia until 2019. Then, the hemolytic anemia relapsed and a neutrophilia became evident (progressing slowly), as well as a thrombocytopenia and splenomegaly without adenopathy were found. The bone marrow aspirate showed a chronic myeloproliferative disease without dysplasia. A peripheral blood search for the CSF3R mutation (T618I) was positive, also suggesting Chronic Neutrophilic Leukemia (CNL). For a discrete monocytosis, a chronic myelomonocytic leukemia (CMML) was also considered. Hydroxyurea was then prescribed. The T618I CSF3R mutation is highly suggestive of CNL (being diagnostic criteria for CNL); however, this case may also suggest CMML as a possible diagnosis (there are other mutations in the CSF3R gene described for CMML, but not the T618I, which is highly exclusive of CNL according to the literature). To our knowledge, this is the first report of a possible CNL in a CLL patient (the opposite was already described in 1998).

Acute Parotitis: A Rare Complication of Fine Needle Aspiration in Warthin Tumour.

Salivary gland tumours are a group of neoplasms with considerable heterogeneity regarding their histology and biological behaviour. Warthin tumour (WT) is the second most common benign parotid tumour. Options for tissue diagnosis include fine needle aspiration (FNA) and ultrasound-guided core needle biopsy. Complications related to FNA are rare. We present the case of a 49-year-old man admitted with parotitis after FNA and discuss management and an alternative investigative approach when WT is strongly suspected. LEARNING POINTS: Warthin tumour (WT) can be clinically suspected based on location (parotid gland tail), cystic texture, patient sex (male) and age (fifth and sixth decades of life), after exclusion of features related to malignancy.Complications of fine-needle aspiration (FNA) for WT diagnosis are rare and most commonly include haemorrhage, facial nerve injury, cellulitis at the needle puncture site and, less frequently, parotitis.When diagnosing tumours strongly suspected of being WT, the clinician should avoid routine FNA and instead use combined imaging studies.

Mesenteric panniculitis: diagnostic precision.

A previously healthy 74-year-old woman was admitted with vespertine fever, tremors, shivers and loss of appetite within the previous month. Blood tests revealed an elevated C reactive protein serum level. Serologies for infection were negative. Blood cultures grew no organisms. Colonoscopy revealed normal findings. CT showed typical findings of mesenteric panniculitis with infiltration of mesenteric fat that was circumscribed by hyperattenuating capsule and contained enlarged homogenous lymph nodes. The histopathological analysis from mesenterium revealed non-specific signs of chronic inflammation. On institution of prednisolone, the clinical symptoms subsided, and we replaced it with azathioprine after 1 month. After 12 months of therapy, the patient remained asymptomatic, normalised the serological inflammatory markers and repeat CT revealed normal mesenteric fat.

Pharmacotherapeutic follow-up in a respiratory intensive care unit: description and analysis of results.

OBJECTIVE: To describe and evaluate the pharmacotherapeutic follow-up by a clinical pharmacist in an intensive care unit. METHODS: A descriptive and cross-sectional study carried out from August to October 2016. The data were collected through a form, and pharmacotherapeutic follow-up conducted by a clinical pharmacist at the respiratory intensive care unit of a tertiary hospital. The problems recorded in the prescriptions were quantified, classified and evaluated according to severity; the recommendations made by the pharmacist were analyzed considering the impact on pharmacotherapy. The medications involved in the problems were classified according to the Anatomical Therapeutic Chemical Classification System. RESULTS: Forty-six patients were followed up and 192 pharmacotherapy-related problems were registered. The most prevalent problems were missing information on the prescription (33.16%), and those with minor severity (37.5%). Of the recommendations made to optimize pharmacotherapy, 92.7% were accepted, particularly those on inclusion of infusion time (16.67%), and dose appropriateness (13.02%), with greater impact on toxicity (53.6%). Antimicrobials, in general, for systemic use were drug class most often related to problems in pharmacotherapy (53%). CONCLUSION: Pharmacotherapeutic follow-up conducted by a pharmacist in a respiratory intensive care unit was able to detect problems in drug therapy and to make clinically relevant recommendations.

Pharmacotherapeutic follow-up in a respiratory intensive care unit: description and analysis of results / Acompanhamento farmacoterapêutico em unidade de terapia intensiva respiratória: descrição e análise de resultados

ABSTRACT Objective: To describe and evaluate the pharmacotherapeutic follow-up by a clinical pharmacist in an intensive care unit. Methods: A descriptive and cross-sectional study carried out from August to October 2016. The data were collected through a form, and pharmacotherapeutic follow-up conducted by a clinical pharmacist at the respiratory intensive care unit of a tertiary hospital. The problems recorded in the prescriptions were quantified, classified and evaluated according to severity; the recommendations made by the pharmacist were analyzed considering the impact on pharmacotherapy. The medications involved in the problems were classified according to the Anatomical Therapeutic Chemical Classification System. Results: Forty-six patients were followed up and 192 pharmacotherapy-related problems were registered. The most prevalent problems were missing information on the prescription (33.16%), and those with minor severity (37.5%). Of the recommendations made to optimize pharmacotherapy, 92.7% were accepted, particularly those on inclusion of infusion time (16.67%), and dose appropriateness (13.02%), with greater impact on toxicity (53.6%). Antimicrobials, in general, for systemic use were drug class most often related to problems in pharmacotherapy (53%). Conclusion: Pharmacotherapeutic follow-up conducted by a pharmacist in a respiratory intensive care unit was able to detect problems in drug therapy and to make clinically relevant recommendations.

RESUMO Objetivo: Descrever e avaliar o acompanhamento farmacoterapêutico do farmacêutico clínico em uma unidade de terapia intensiva. Métodos: Trata-se de um estudo descritivo, com desenho transversal, realizado no período de agosto a outubro de 2016. Os dados foram coletados por meio de um formulário de registro, com acompanhamento farmacoterapêutico realizado pelo farmacêutico clínico na unidade de terapia intensiva respiratória de um hospital terciário. Os problemas registrados nas prescrições foram quantificados e classificados, sendo avaliados quanto à gravidade; as recomendações realizadas pelo farmacêutico clínico foram analisadas em relação ao impacto na farmacoterapia. Os medicamentos envolvidos nos problemas foram categorizados utilizando o Anatomical Therapeutic Chemical Classification System. Resultados: Foram acompanhados 46 pacientes, tendo sido registrados 192 problemas relacionados à farmacoterapia. Os problemas prevalentes foram informação ausente na prescrição (33,16%) e com gravidade menor (37,5%). Das recomendações realizadas para a otimização da farmacoterapia, 92,7% foram aceitas, sendo prevalentes aquelas referentes a inclusão do tempo de infusão (16,67%) e a adequação da dose (13,02%), com maior impacto na toxicidade (53,6%). Os anti-infecciosos gerais para uso sistêmico constituíram classe de medicamentos mais frequente nos problemas relacionados à farmacoterapia (53%). Conclusão: O acompanhamento farmacoterapêutico realizado pelo farmacêutico em uma unidade de terapia intensiva respiratória mostrou-se capaz de detectar problemas na farmacoterapia dos pacientes e realizar recomendações clinicamente relevantes.

Ocorrência de anticorpos antitoxoplasma em pacientes atendidos no Laboratório Celso Mats - Santarém, PA / Ocurrence of antitoxoplasma antibodies in patients attended in the Celso Matos Laboratory - Santarém, Pará

A toxoplasmose, zoonose de felídeos causada pelo Toxoplasma gandii é uma infecção de alta prevalência sorológica que atinge grande parte da população de nossa cidade. No período de agosto de 1997 a junho de 1999 foi realizada análise do perfil sorológco de 601 pacientes, incluindo crianças, jovens e adultos, dispensando atenção especial às pacientes grávidas. Os testes sorológicos foram realizados no Laboratório Celso Matos. A metodologia utilizada para a detecção de anticorpos foi o ensaio imunoenzimático (ELISA). Os resultados mostram índice crescente de positividade de acordo com a idade, sendo mais evidente em indivíduos adultos. 68,3% das pacientes grávidas apresentarm IgG antitoxoplasma. O índice de anticorpos na população santarena pode estar relacionado à localização geográfica, níveis de higiene e hábitos alimentares que têm claramente um papel importante na prevalência da doença.