MicroRNA dysregulation in schistosomiasis-induced hepatic fibrosis: a systematic review.

BACKGROUND: MicroRNAs are involved in gene regulation in several common liver diseases and may play an essential role in activating hepatic stellate cells. The role of these post-transcriptional regulators in schistosomiasis needs to be further studied in populations from endemic areas for a better understanding of the disease, the development of new therapeutic approaches, and the use of biomarkers for the prognosis of schistosomiasis. AREAS COVERED: We performed a systematic review to describe the main human microRNAs identified in non-experimental studies associated with aggravation of the disease in people infected with Schistosoma mansoni (S. mansoni) and Schistosoma japonicum (S. japonicum). Structured searches were carried out in PubMed, Medline, Science Direct, Directory of Open Access Journals, Scielo, Medcarib, and Global Index Medicus databases without time and language restrictions. This is a systematic review following the guidelines of the PRISMA platform. EXPERT OPINION: The miR-146a-5p, miR-150-5p, let-7a-5p, let-7d-5p, miR-92a- 3p, and miR-532-5p are associated with liver fibrosis in schistosomiasis caused by S. japonicum, revealing that these miRNAs that have been shown to be associated with liver fibrosis are good targets for new studies that evaluate their potential as a biomarker or even treating liver fibrosis in schistosomiasis.

Aspects of cognitive assessments and spectroscopic magnetic resonance imaging in people with chronic hepatitis C: a systematic review.

Extrahepatic manifestations are common in people with hepatitis C virus (HCV). Cognitive changes are pointed out, but the mechanisms are still uncertain. The aim of this systematic review was to analyze studies involving spectroscopic magnetic resonance in people infected with HCV, which also included cognitive tests. The research occurred in six databases (Directory of Open Access Journals, Lilacs, Medcaribe, Medline, Scielo and ScienceDirect) and the selection of studies was carried out in two stages: search for titles and abstracts, then reading of the full articles, excluding those that did not meet the eligibility criteria. 12,888 titles and abstracts were selected, but only 6 articles were included in the review. Impairments in attention, concentration, speed of information processing, memory, verbal fluency and executive functions were identified as well as an increase in the Cho/Cr and mI/Cr ratios and a reduction in the NAA/Cr ratio in some included studies. Longitudinal studies, with more homogeneous samples and methods, as well as with better controlled confounding factors, are necessary to adequately identify the effect of HCV on the brain.

Association of the polymorphisms of the genes APOC3 (rs2854116), ESR2 (rs3020450), HFE (rs1799945), MMP1 (rs1799750) and PPARG (rs1801282) with lipodystrophy in people living with HIV on antiretroviral therapy: a systematic review.

The aim of this study was to perform a systematic review to identify data reported in the literature concerning the association of APOC3 (rs2854116), ESR2 (rs3020450), HFE (rs1799945), MMP1 (rs1799750) and PPARG (rs1801282) polymorphisms with lipodystrophy in people living with HIV (PLWHIV) on antirretroviral therapy. The research was conducted in six databases and the studies were selected in two steps. First, a search was undertaken in the following electronic databases: PubMed, Science Direct, Medline, World Wide Science, Directory of Open Access Journals, Scielo, Lilacs and Medcarib. The titles and abstracts of 24,859 articles were read to select those that match the elegibilty criteria. Five papers that addressed the association of HAART, lipodystrophy and polymorphisms were selected for the review. There was no association between the polymorphisms of the genes APOC3 and PPARG and lipodystrophy. Another study described an association between the variant allele (G) of HFE and protection concerning the development of lipoatrophy (0.02) when compared with the reference allele (C). On the other hand, the variant allele (T) of the ESR2 gene was associated with the development of lipoatrophy (p = 0.007) when compared with the reference allele (C). In addition, the genotype and the variant allele of the gene MMP1 (2G) were associated with lipodystrophy in PLWHIV on HAART (p = 0.0002 and p = 0.0008, respectively). Therefore, further studies with other populations, involving PLWHIV on HAART are necessary to better understand the role of genetic markers, which may be involved in a predisposition to lipodystrophy.

Cognitive Dysfunction and Single Nucleotide Polymorphisms in Hepatitis C Virus-Infected Persons: A Systematic Review.

The aim of this study was to realize a systematic review to identify data reported in the literature involving people infected by hepatitis C virus (HCV) with cognitive dysfunctions and single nucleotide polymorphisms (SNPs). The research was realized in six databases and the selection of studies was performed in two stages. Initially, we searched indexed articles from the following electronic databases: SciELO, MEDLINE, PubMed, HighWire, LILACS, and ScienceDirect. Then the articles were completely read and those that did not meet the eligibility criteria were excluded. Therefore, 5,669 articles were obtained and, of these, 25 were selected. Finally, one article involving people with HCV and cognitive impairment was included in the review. The frequency of the APOE-ɛ4 allele in people with HCV and mild liver disease was significantly lower in those with work memory impairment (p = 0.003) and attention (p = 0.008). This situation differs from other studies that showed an association between ɛ4 allele high frequency and cognitive decline. Thus, studies with larger samples involving people with HCV, cognitive alterations, and SNPs are necessary, in view of the lack of this theme in the literature and the divergences in the findings.

Avaliação da sobrecarga dos cuidadores de pessoas com Esclerose Lateral Amiotrófica (ELA) / Evaluation of overloading on caregivers of people with Amyotrophic Lateral Sclerosis (ALS)

Introdução: Esclerose lateral amiotrófica (ELA) é uma desordem neurodegenerativa que resulta na morte seletiva de neurônios motores, causando fraqueza e atrofia muscular generalizada como principais sintomas. Ainda sem cura, o doente em tratamento requer assistência na mobilidade e atividades diárias. Cuidar de um paciente com ELA implica maior ou menor sobrecarga e tempo, demandando estratégias de redução do estresse e ampliação da qualidade de vida dos cuidadores. Nesse sentido, os grupos de apoio surgem como alternativas. Objetivo: O objetivo deste estudo é avaliar se há sobrecarga dos cuidadores de pacientes com ELA e os possíveis benefícios relacionados à participação no grupo de apoio específico a cuidadores. Método: Trata-se de um estudo descritivo e transversal, com aplicação da Escala de Sobrecarga do Cuidador - Zarit e entrevista sobre a participação no Grupo de Apoio Esperança para ELA, realizado em um hospital público do Recife. Foram avaliados sete cuidadores familiares e um profissional. Resultados: Após análise dos dados, verificou-se que a maioria dos cuidadores apresenta sobrecarga moderada e quase todos residem com o doente, o que pode contribuir para limitações e modificações no estilo de vida destes. A participação no grupo é reconhecida por todos como fonte de trocas e aprendizado sobre a doença, além de acolhedora de questões emocionais e dificuldades no cuidado. Conclusão: Conclui-se que esses cuidadores evidenciam sobrecarga moderada e se beneficiam do apoio recebido no Grupo Esperança para ELA. No entanto, outras estratégias podem ser necessárias para minimização dessa sobrecarga e segurança no cuidado ao doente.

Introduction: Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disorder that results in the selective death of motor neurons, with weakness and generalized muscle atrophy as primary symptoms. With cure yet to be found, the patients in treatment need assistance in mobility and daily activities. Taking care of a patient with ALS results in varying degrees of burden and time, demanding stress reduction strategies and an increase in the quality of life of caregivers. In this sense, support groups emerge as alternatives. Objective: The aim of this study was to assess whether caregivers of patients with ALS exhibit burden and the possible benefits from participating in a support group specifically designed for them. Method: This is a cross-sectional descriptive study that applied the Zarit Caregiver Burden Scale and Interview regarding participation in the "Hope for ALS" support group, at a public hospital in Recife, Brazil. Seven families' caregivers and one professional caregiver were assessed. Results: Data analysis showed that most caregivers exhibit moderate burden and nearly all live with the patient, which may contribute to limitations in their lifestyle. Participation in the group is recognized by all as a source of exchange and learning about the disease, also an opportunity to discuss emotional issues and caregiving difficulties. Conclusion: It is concluded that these caregivers display moderate burden and that they benefit from the support received from the Hope for ALS group. However, other strategies may be needed to minimize this burden and improve patient care safety.

Depression and anxiety in individuals with amyotrophic lateral sclerosis: a systematic review.

INTRODUCTION: Studies assessing symptoms of depression and anxiety in individuals with amyotrophic lateral sclerosis (ALS) have reported contradictory results. The objective of this systematic review is to identify the prevalence of these mood disorders in the literature. METHODS: We searched the PubMed, HighWire, MEDLINE, SciELO, LILACS and ScienceDirect databases. Literature was selected for review in two stages, according to eligibility criteria. The first stage involved searching databases and checking titles and abstracts. The second step consisted of reading complete articles and excluding those that did not meet the inclusion criteria. The inclusion criteria were articles written in Portuguese, English or Spanish, published in the last five years and involving people with ALS diagnosed according to the El Escorial criteria. RESULTS: The database searches returned a total of 1,135 titles and abstracts and then 1,117 of these were excluded. Eighteen articles were selected for review. The 12-item Amyotrophic Lateral Sclerosis Depression Inventory (ADI-12) was the only instrument designed specifically to assess depression in ALS, but it was only used in three studies. No instruments specifically designed for anxiety in ALS were used. A large number of studies found presence and slight increase of anxiety disorders. There was considerable large variation in the results related to depressive disorders, ranging from moderate depression to an absence of symptoms. CONCLUSIONS: Patients with ALS may exhibit symptoms of depression and anxiety at different levels, but there is a need for studies using specific instruments with larger samples in order to ascertain the prevalence of symptoms in ALS and the factors associated with it.

Depression and anxiety in individuals with amyotrophic lateral sclerosis: a systematic review / Depressão e ansiedade em pessoas com esclerose lateral amiotrófica: uma revisão sistemática

Introduction Studies assessing symptoms of depression and anxiety in individuals with amyotrophic lateral sclerosis (ALS) have reported contradictory results. The objective of this systematic review is to identify the prevalence of these mood disorders in the literature. Methods We searched the PubMed, HighWire, MEDLINE, SciELO, LILACS and ScienceDirect databases. Literature was selected for review in two stages, according to eligibility criteria. The first stage involved searching databases and checking titles and abstracts. The second step consisted of reading complete articles and excluding those that did not meet the inclusion criteria. The inclusion criteria were articles written in Portuguese, English or Spanish, published in the last five years and involving people with ALS diagnosed according to the El Escorial criteria. Results The database searches returned a total of 1,135 titles and abstracts and then 1,117 of these were excluded. Eighteen articles were selected for review. The 12-item Amyotrophic Lateral Sclerosis Depression Inventory (ADI-12) was the only instrument designed specifically to assess depression in ALS, but it was only used in three studies. No instruments specifically designed for anxiety in ALS were used. A large number of studies found presence and slight increase of anxiety disorders. There was considerable large variation in the results related to depressive disorders, ranging from moderate depression to an absence of symptoms. Conclusions Patients with ALS may exhibit symptoms of depression and anxiety at different levels, but there is a need for studies using specific instruments with larger samples in order to ascertain the prevalence of symptoms in ALS and the factors associated with it.

Introdução Estudos avaliando sintomas depressivos e ansiosos em pessoas com esclerose lateral amiotrófica (ELA) têm apresentado resultados contraditórios. Esta revisão sistemática tem por objetivo identificar a prevalência desses transtornos do humor na literatura. Métodos A pesquisa foi feita nas bases de dados PubMed, HighWire, MEDLINE, SciELO, LILACS e ScienceDirect. A seleção dos estudos foi realizada em duas etapas de acordo com os critérios de elegibilidade. A primeira etapa envolveu pesquisa nas bases de dados e revisão de títulos e resumos. Na segunda etapa houve a leitura dos artigos completos e a exclusão dos que não preenchiam os critérios de inclusão. Os critérios de inclusão eram: publicação nos idiomas português, inglês ou espanhol, nos últimos 5 anos e envolvendo pessoas com ELA conforme o El Escorial. Resultados Um total de 1.135 títulos e resumos foram selecionados, mas 1.117 foram excluídos. Como resultado, 18 artigos foram incluídos na revisão. O Inventário de Depressão da Esclerose Lateral Amiotrófica com 12 itens (ADI-12) foi o único instrumento específico para avaliação da depressão na ELA utilizado, porém em apenas três estudos. Nenhum instrumento específico para ansiedade na ELA foi utilizado. Boa parte dos estudos apontaram presença e ligeiro aumento das desordens de ansiedade. Já para depressão houve grande diversidade de respostas, variando de depressão moderada à ausência de sintomas. Conclusões Pessoas com ELA podem apresentar sintomas depressivos e ansiosos em proporções diferentes, mas há a necessidade de estudos com instrumentos específicos e com amostras mais amplas para que se possa averiguar a prevalência das sintomatologias na ELA e os fatores associados a elas.

Preliminary data on a mnemonic instrument with proverbs for tracking Alzheimer's disease.

In the differential diagnosis between Alzheimer's disease (AD) and normal aging, tests evaluating memory and executive functions are frequently used. The addition of abstraction tests may enhance the effectiveness of screening tests for AD. OBJECTIVES: The aim of this study was to compare initial data of a new instrument - The Screening Test for Alzheimer's Disease with Proverbs (STADP) - against other screening tests used in AD diagnosis. METHODS: Sixty elderly individuals (46 controls and 14 AD subjects with CDR=1), aged =60 years, with at least one year of schooling, were evaluated using the STADP at outpatient clinic. The STADP assesses short-term memory, episodic memory, executive functions and language, in addition to proverb recognition. The performance of the participants on the Mini-Mental State Examination (MMSE), semantic Verbal Fluency (VF) and Clock Drawing Test (CDT) were evaluated and the habit of reading, writing and sociodemographic data were also taken into account. RESULTS: There were significant correlations between STADP and the performance on the MMSE (r=0.64), CDT (r=0.50) and VF (r=0.56). Age influenced all sub-items of the STADP, specifically episodic memory (r= -0.54), whereas schooling mainly influenced executive functions and language (r=0.46). The total score, stages A and C and the "proverb recognition" of STADP (p<0.001), as well as the MMSE (p<0.001), CDT (p=0.016), VF (p<0.001) were significantly different in AD versus control groups. CONCLUSIONS: The findings point to the potential use of the STADP in AD, warranting the conducting of further studies.

No diagnóstico diferencial entre a doença de Alzheimer (DA) e envelhecimento normal testes que avaliam memória e função executiva são freqüentemente utilizados. A adição de testes de abstração ao de rastreio pode ampliar ainda mais a eficácia de testes de rastreio para DA. OBJETIVOS: O objetivo deste trabalho foi comparar dados iniciais do novo instrumento ­ Teste de Rastreio de Doença de Alzheimer com Provérbios (TRDAP) ­ com testes padronizados para diagnóstico de DA. MÉTODOS: Sessenta idosos (46 controles e 14 DA com CDR=1), escolaridade mínima de um ano, a partir de 60 anos, atendidos em ambulatórios foram avaliados com o TRDAP. O TRDAP avalia memória de curto prazo, memória episódica e funções executivas e linguagem, além do reconhecimento de provérbios. Foram usados o Mini-Exame Mental (MEEM), a Fluência Verbal semântica (FV), o Teste do Desenho do Relógio (TDR) e observados hábitos de leitura, escrita e dados sócio-demográficos. RESULTADOS: Houve significativa correlação entre: TRDAP e MEEM (r=0,64), TDR (r=0,50) e FV (r=0,56). Idade influenciou os três testes, especificamente memória episódica do TRDAP (r= ­0,54); escolaridade, em funções executivas e linguagem (r=0,46). Na comparação entre pacientes com DA e controles o escore total e as etapas A e C do TRDAP e o reconhecimento dos provérbios (p<0,001), assim como o MEEM (p<0,001), o TDR (p=0,016) e FV (p<0,001). CONCLUSÕES: Os achados apontam para utilidade potencial do TRDAP na DA, indicando que mais estudos devem ser realizados.