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Gain of chromosome 1q (+1q) is one of the most common recurrent cytogenetic abnormalities in multiple myeloma (MM), occurring in approximately 40% of newly diagnosed cases. Although it is often considered a poor prognostic marker in MM, +1q has not been uniformly adopted as a high-risk cytogenetic abnormality in guidelines. Controversy exists regarding the importance of copy number, as well as whether +1q is itself a driver of poor outcomes or merely a common passenger genetic abnormality in biologically unstable disease. Although the identification of a clear pathogenic mechanism from +1q remains elusive, many genes at the 1q21 locus have been proposed to cause early progression and resistance to anti-myeloma therapy. The plethora of potential drivers suggests that +1q is not only a causative factor or poor outcomes in MM but may be targetable and/or predictive of response to novel therapies. This review will summarize our current understanding of the pathogenesis of +1q in plasma cell neoplasms, the impact of 1q copy number, identify potential genetic drivers of poor outcomes within this subset, and attempt to clarify its clinical significance and implications for the management of patients with multiple myeloma.Subject terms: Cancer genomics, Myeloma, Myeloma 相似文献
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The identification that T follicular helper (Tfh) cells is critical for the emergence of germinal centre responses prompted the study of CXCR5-expressing CD4+ T cell subsets in autoimmunity. However, circulating CXCR5-expressing T cells are heterogeneous by containing Forkhead box protein 3 (FoxP3)+ T follicular regulatory (Tfr) cells in addition to bona fide Tfh cells. Such heterogeneity may hamper the analysis of the contribution of specific follicular T cell subsets for autoimmune pathogenesis. Therefore, separate assessment of Tfh and Tfr populations offer greater opportunities for stratification of autoimmune patients, such as Sjögren’s syndrome patients. 相似文献
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Ana Patrícia Domingues Etelvina Fonseca Adriana Belo Paulo Moura 《The journal of maternal-fetal & neonatal medicine》2015,28(9):1108-1111
Objective: To evaluate the influence of the local prenatal surveillance of twin pregnancies in the obstetrical results.Methods: A prospective cohort study of multiple pregnancies delivered over a period of 16 years in a tertiary centre was conducted. In this study 861 twin pregnancies were included. They were compared for obstetric complications, gestational age at delivery, mode of delivery and birthweight, according to the place of the surveillance.Results: Of the 861 cases examined, the following obstetric complications were significantly different: metrorrhagia (p?=?0.039), infections (p?0.001), HELLP (p?=?0.007), PROMPT (p?0.001) and fetal death (p?=?0.024). The mode of delivery was similar but occurred mostly ≤32 weeks (p?0.001), the birthweight was mostly <2000?g and occurred more NICU admission (p?0.001) when surveillance was outside the MPC-MDM.Conclusion: Our results demonstrate the crucial importance of prenatal surveillance be carried in a differentiated referral centers with specific/strict protocols or the urgent implementation of same protocols in all other places of surveillance, since this straight surveillance greatly reduces the occurrence of prenatal complications, mainly PROMPT, PTD. 相似文献
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Overweight,obese, underweight,and frequency of sugar consumption as risk indicators for early childhood caries in Brazilian preschool children 下载免费PDF全文
Cecilia Claudia Costa Ribeiro Mariana Carvalho Batista da Silva Ana Margarida Melo Nunes Erika Bárbara de Abreu Fonseca Thomaz Cadidja Dayane Sousa Carmo Marizélia Rodrigues Costa Ribeiro Antônio Augusto Moura da Silva 《International journal of paediatric dentistry / the British Paedodontic Society [and] the International Association of Dentistry for Children》2017,27(6):532-539
89.
Marcello Fonseca Salgado‐Filho Samira Saady Morhy Henrique Doria de Vasconcelos Eric Benedet Lineburger Fabio de Vasconcelos Papa Eduardo Souza Leal Botelho Marcelo Ramalho Fernandes Maurício Daher David Le Bihan Chiara Scaglioni Tessmer Gatto Cláudio Henrique Fischer Alexander Alves da Silva Carlos Galhardo Júnior Carolina Baeta Neves Alexandre Fernandes Marcelo Luiz Campos Vieira 《Brazilian Journal of Anesthesiology》2018,68(1):1-32
Through the Life Cycle of Intraoperative Transesophageal Echocardiography (ETTI/SBA) the Brazilian Society of Anesthesiology, together with the Department of Cardiovascular Image of the Brazilian Society of Cardiology (DIC/SBC), createded a task force to standardize the use of intraoperative transesophageal echocardiography by Brazilian anesthesiologists and echocardiographers based on scientific evidence from the Society of Cardiovascular Anesthesiologists/American Society of Echocardiography (SCA/ASE) and the Brazilian Society of Cardiology. 相似文献
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Fonseca Eduardo Kaiser Ururahy Nunes Sameshima Yoshino Tamaki 《Abdominal imaging》2018,43(12):3513-3514
Abdominal Radiology - 相似文献