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| 1 | Long noncoding RNAs:a missing link in osteoporosis显示文摘Osteoporosis is a systemic disease that results in loss of bone density and increased fracture risk,particularly in the vertebrae and the hip.This condition and associated morbidity and mortality increase with population ageing.Long noncoding(lnc)RNAs are transcripts longer than 200 nucleotides that are not translated into proteins,but play important regulatory roles in transcriptional and post-transcriptional regulation.Their contribution to disease onset and development is increasingly recognized.Herein,we present an integrative revision on the studies that implicate lncRNAs in osteoporosis and that support their potential use as therapeutic tools.Firstly,current evidence on lncRNAs involvement in cellular and molecular mechanisms linked to osteoporosis and its major complication,fragility fractures,is reviewed.We analyze evidence of their roles in osteogenesis,osteoclastogenesis,and bone fracture healing events from human and animal model studies.Secondly,the potential of lncRNAs alterations at genetic and transcriptomic level are discussed as osteoporosis risk factors and as new circulating biomarkers for diagnosis.Finally,we conclude debating the possibilities,persisting difficulties,and future prospects of using lncRNAs in the treatment of osteoporosis. | Andreia Machado Silva Sara Reis Moura JoseHenrique Teixeira Mario Adolfo Barbosa Susana Gomes Santos Maria Ines Almeida | 2019 | Bone Research2019,7,1: | 13 |
| 2 | Cross-sectional study to determine viral hepatitis knowledge in different urban populations in Brazil显示文摘AIM To evaluate viral hepatitis knowledge among individuals from different resource areas and health conditions to identify possible gaps.METHODS A cross-sectional, descriptive study was carried out among 447 individuals from five distinct populations in Brazil: Southeast Viral Hepatitis Ambulatory(n = 100), South(n = 89) and Northeast(n = 114) Health Center, Southeast(n = 77) and Northeast(n = 67) low resource areas. All individuals answered a questionnaire assessing sociodemographic characteristics and viral hepatitis awareness. The perception was scored based on the average number of correct answers of all participants and categorized as 'low'(0-28 correct answers) or 'desirable'(29-46 correct answers). Associations between sociodemographic characteristics and perception were also evaluated.RESULTS A low level of knowledge was observed in individuals from Northeast Health Center, Northeast and Southeast low resource areas while desirable knowledge was observed in individuals from Viral Hepatitis Ambulatory and South Health Center. According to sociodemographic characteristics, desirable scores were more common among those with secondary education(47.1%), those who declared themselves as white(46.3%), and those who lived in houses with three individuals(25.5%). Multivariate analysis showed an association between viral hepatitis perception and type of population. CONCLUSION The results demonstrated high level of knowledge among study participants from health clinics from the Southeast region of Brazil and the importance of education programs in increasing the level of knowledge in low resource areas. | Helena Medina Cruz Jakeline Ribeiro Barbosa Jeová Keny Baima Colares Antonio Henrique Almeida de Moraes Neto Maria de Fátima Leal Alencar Francisco Inácio Bastos Jurema Corrêa da Mota Filipe Aníbal Carvalho-Costa Claudia Alexandra Pontes Ivantes Lia Laura Lewis-Ximenez Livia Melo Villar | 2018 | World Journal of Hepatology2018,10,11: | 1 |
| 3 | MYC-microRNA-9-metastasis connection in breast cancer显示文摘 | Maria Ines Almeida Rui M Reis George A Calin | 2010 | Cell Research2010,20,6: | 1 |
| 4 | Neuropsychological features of progranulin-associated frontotemporal dementia: a nested case-control study显示文摘The distinction between sporadic and genetic behavioural-variant frontotemporal dementia(bvFTD)regarding some neuropsychological(NP)features remains challenging.Specifically,progranulin(GRN)-associated bvFTD frequently presents with early episodic memory impairment and some degree of parietal dysfunction which are supporters of Alzheimer’s disease(AD)diagnosis.In this context,we aimed to characterize the NP profile of GRN-bvFTD as compared to sporadic-bvFTD and AD in patients with mild dementia(Mini-Mental State Examination score≥17 and Clinical Dementia Rating Scale score≤1.We identified 21 patients at Centro Hospitalar e Universitário de Coimbra,Portugal with GRN mutations belonging to fifteen different families.As our focus was bvFTD variants,FTD-related aphasic forms(3 patients)were excluded.The remaining 18 GRN-bvFTD were further matched with 18 sporadic-bvFTD and 18 AD patients according to disease staging,age and education.All patients completed the Mini-Mental State Examination,Montreal Cognitive Assessment(MoCA)and a comprehensive NP assessment battery.Results were converted into z-scores.Differences between groups in individual NP measures and NP domains were assessed through non-parametric tests(Kruskal-Wallis test analysis)and eta squared(ŋ2)was calculated as a measure of effect size.Group comparisons show that GRN patients have worse performances on verbal retrieval processes(P=0.039,ŋ2=0.110)and visuoconstructive abilities(P=0.039,ŋ2=0.190)than sporadic bvFTD forms.When compared to AD,GRN patients present a higher impairment in frontal(P=0.001,ŋ2=0.211)and parietal(P=0.041,ŋ2=0.129)measures and a better performance in memory tasks(P=0.020,ŋ2=0.120).Sporadic-bvFTD forms are worse than AD in frontal measures(P=0.032,ŋ2=0.200),being better in both memory(P=0.010,ŋ2=0.131)and visuospatial skills(P=0.023,ŋ2=0.231).Considering these results,we conclude that GRN-bvFTD patients present a NP profile that associates the typical patterns of FTD and AD deficits.This is particularly expressive in visuoconstructive abilities,which was the more discriminative feature between groups,followed by episodic verbal memory.This study was approved by the Institutional Ethics Committee of Centro Hospitalar e Universitário de Coimbra,Portugal(CE-029/2019)on June 24,2019. | Marisa Lima Miguel Tábuas-Pereira Diana Duro João Durães Daniela Vieira Inês Baldeiras Maria Rosário Almeida Isabel Santana | 2021 | Neural Regeneration Research2021,16,5: | 0 |