Katy Cooper, Gamze Nalbant, Anthea Sutton, Sue Harnan, Praveen Thokala, Jim Chilcott, Alisdair McNeill, Alice Bessey
{"title":"Systematic Review of Presymptomatic Treatment for Spinal Muscular Atrophy.","authors":"Katy Cooper, Gamze Nalbant, Anthea Sutton, Sue Harnan, Praveen Thokala, Jim Chilcott, Alisdair McNeill, Alice Bessey","doi":"10.3390/ijns10030056","DOIUrl":"10.3390/ijns10030056","url":null,"abstract":"<p><p>Spinal muscular atrophy (SMA) causes the degeneration of motor neurons in the spinal cord. Treatments including nusinersen, risdiplam, and onasemnogene abeparvovec have been shown to be effective in reducing symptoms, with recent studies suggesting greater effectiveness when treatment is initiated in the presymptomatic stage. This systematic review synthesises findings from prospective studies of presymptomatic treatment for 5q SMA published up to December 2023. The review identified three single-arm interventional studies of presymptomatic treatment (NURTURE, RAINBOWFISH, and SPR1NT), six observational studies comparing presymptomatic or screened cohorts versus symptomatic cohorts, and twelve follow-up studies of screened cohorts only (i.e., babies identified via newborn screening for SMA). Babies with three <i>SMN2</i> copies met most motor milestones in the NURTURE study of nusinersen and in the SPR1NT study of onasemnogene abeparvovec. Babies with two <i>SMN2</i> copies in these two studies met most motor milestones but with some delays, and some required ventilatory or feeding support. The RAINBOWFISH study of risdiplam is ongoing. Naïve comparisons of presymptomatic treatment in SPR1NT, versus untreated or symptomatic treatment cohorts, suggested improved outcomes in patients treated presymptomatically. Comparative observational studies supported the finding that presymptomatic treatment, and early treatment following screening, may improve outcomes compared with treatment at the symptomatic stage. Further research should assess the long-term clinical outcomes and cost-effectiveness of presymptomatic treatment for SMA.</p>","PeriodicalId":14159,"journal":{"name":"International Journal of Neonatal Screening","volume":"10 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11348213/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M Christine Dorley, Elizabeth Bair, Patricia Ryland, Amanda D Ingram, Emily Reeves, Kara J Levinson, Ona O Adair, Jenny F Meredith, Susanne Crowe
{"title":"Continuity of Operations in Newborn Screening: Lessons Learned from Three Incidents.","authors":"M Christine Dorley, Elizabeth Bair, Patricia Ryland, Amanda D Ingram, Emily Reeves, Kara J Levinson, Ona O Adair, Jenny F Meredith, Susanne Crowe","doi":"10.3390/ijns10030055","DOIUrl":"10.3390/ijns10030055","url":null,"abstract":"<p><p>Three incidents that impacted two US newborn screening (NBS) programs highlight the importance of contingency planning for the continuity of operations (COOP). Other NBS programs may benefit from the experience of these state programs for their own contingency planning efforts. Through after-action reviews conducted post-incident, crucial elements for the successful management of an incident were identified. We detailed the strengths, weaknesses, improvements needed, and future actions that will assist in preparing for other incidents as lessons learned.</p>","PeriodicalId":14159,"journal":{"name":"International Journal of Neonatal Screening","volume":"10 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11348246/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142072824","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kristen N Wong, Melissa McIntyre, Sabina Cook, Kim Hart, Amelia Wilson, Sarah Moldt, Andreas Rohrwasser, Russell J Butterfield
{"title":"A Five-Year Review of Newborn Screening for Spinal Muscular Atrophy in the State of Utah: Lessons Learned.","authors":"Kristen N Wong, Melissa McIntyre, Sabina Cook, Kim Hart, Amelia Wilson, Sarah Moldt, Andreas Rohrwasser, Russell J Butterfield","doi":"10.3390/ijns10030054","DOIUrl":"10.3390/ijns10030054","url":null,"abstract":"<p><p>Spinal muscular atrophy (SMA) is an autosomal recessive condition characterized by alpha motor neuron degeneration in the spinal cord anterior horn. Clinical symptoms manifest in the first weeks to months of life in the most severe cases, resulting in progressive symmetrical weakness and atrophy of the proximal voluntary muscles. Approximately 95% of SMA patients present with homozygous deletion of the <i>SMN1</i> gene. With multiple available therapies preventing symptom development and slowing disease progression, newborn screening for SMA is essential to identify at-risk individuals. From 2018 to 2023, a total of 239,844 infants were screened. 13 positive screens were confirmed to have SMA. An additional case was determined to be a false positive. We are not aware of any false-negative cases. All patients were seen promptly, with diagnosis confirmed within 1 week of the initial clinical visit. Patients were treated with nusinersen or onasemnogene abeparvovec. Treated patients with two copies of <i>SMN2</i> are meeting important developmental milestones inconsistent with the natural history of type 1 SMA. Patients with 3-4 copies of <i>SMN2</i> follow normal developmental timelines. Newborn screening is an effective tool for the early identification and treatment of patients with SMA. Presymptomatic treatment dramatically shifts the natural history of SMA, with most patients meeting appropriate developmental milestones. Patients with two copies of <i>SMN2</i> identified through newborn screening constitute a neurogenetic emergency. Due to the complexities of follow-up, a multidisciplinary team, including close communication with the newborn screening program, is required to facilitate timely diagnosis and treatment.</p>","PeriodicalId":14159,"journal":{"name":"International Journal of Neonatal Screening","volume":"10 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11270276/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Evelina Maines, Roberto Franceschi, Francesca Rivieri, Giovanni Piccoli, Björn Schulte, Jessica Hoffmann, Andrea Bordugo, Giulia Rodella, Francesca Teofoli, Monica Vincenzi, Massimo Soffiati, Marta Camilot
{"title":"Biochemical Pattern of Methylmalonyl-CoA Epimerase Deficiency Identified in Newborn Screening: A Case Report.","authors":"Evelina Maines, Roberto Franceschi, Francesca Rivieri, Giovanni Piccoli, Björn Schulte, Jessica Hoffmann, Andrea Bordugo, Giulia Rodella, Francesca Teofoli, Monica Vincenzi, Massimo Soffiati, Marta Camilot","doi":"10.3390/ijns10030053","DOIUrl":"10.3390/ijns10030053","url":null,"abstract":"<p><p>Methylmalonyl-CoA epimerase enzyme (MCEE) is responsible for catalyzing the isomeric conversion between D- and L-methylmalonyl-CoA, an intermediate along the conversion of propionyl-CoA to succinyl-CoA. A dedicated test for MCEE deficiency is not included in the newborn screening (NBS) panels but it can be incidentally identified when investigating methylmalonic acidemia and propionic acidemia. Here, we report for the first time the biochemical description of a case detected by NBS. The NBS results showed increased levels of propionylcarnitine (C3) and 2-methylcitric acid (MCA), while methylmalonic acid (MMA) and homocysteine (Hcy) were within the reference limits. Confirmatory analyses revealed altered levels of metabolites, including MCA and MMA, suggesting a block in the propionate degradation pathway. The analysis of methylmalonic pathway genes by next-generation sequencing (NGS) allowed the identification of the known homozygous nonsense variation c.139C>T (p.R47X) in exon 2 of the MCE gene. Conclusions: Elevated concentrations of C3 with a slight increase in MCA and normal MMA and Hcy during NBS should prompt the consideration of MCEE deficiency in differential diagnosis. Increased MMA levels may be negligible at NBS as they may reach relevant values beyond the first days of life and thus could be identified only in confirmatory analyses.</p>","PeriodicalId":14159,"journal":{"name":"International Journal of Neonatal Screening","volume":"10 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11270317/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nathalia Teixeira Palla Braga, Jáderson Mateus Vilela Antunes, Enrico Antônio Colosimo, Vera Maria Alves Dias, José Nélio Januário, Ivani Novato Silva
{"title":"Impact of Lowering TSH Cut-Off on Neonatal Screening for Congenital Hypothyroidism in Minas Gerais, Brazil.","authors":"Nathalia Teixeira Palla Braga, Jáderson Mateus Vilela Antunes, Enrico Antônio Colosimo, Vera Maria Alves Dias, José Nélio Januário, Ivani Novato Silva","doi":"10.3390/ijns10030052","DOIUrl":"10.3390/ijns10030052","url":null,"abstract":"<p><p>A higher incidence of primary congenital hypothyroidism (CH) has been related to increased sensitivity in neonatal screening tests. The benefit of treatment in mild cases remains a topic of debate. We evaluated the impact of reducing the blood-spot TSH cut-off (b-TSH) from 10 (Group 2) to 6 mIU/L (Group 1) in a public neonatal screening program. During the study period, 40% of 123 newborns with CH (<i>n</i> = 162,729; incidence = 1:1323) had b-TSH between 6 and 10 mIU/L. Group 1 patients had fewer clinical signs (<i>p</i> = 0.02), lower serum TSH (<i>p</i> < 0.01), and higher free T4 (<i>p</i> < 0.01) compared to those in Group 2 at diagnosis. Reducing the b-TSH cut-off from 10 to 6 mIU/L increased screening sensitivity, allowing a third of diagnoses, mainly mild cases, not being missed. However, when evaluating the performances of b-TSH cut-offs (6, 7, 8, 9, and 10 mIU/L), the lower values were associated with low positive predictive values (PPVs) and unacceptable increased recall rates (0.57%) for a public health care program. A proposed strategy is to adopt a higher b-TSH cut-off in the first sample and a lower one in the subsequent samples from the same child, which yields a greater number of diagnoses with an acceptable PPV.</p>","PeriodicalId":14159,"journal":{"name":"International Journal of Neonatal Screening","volume":"10 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11270361/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Francis K Lee, Christopher Greene, Kristina Mercer, Jennifer Taylor, Golriz Yazdanpanah, Robert Vogt, Rachel Lee, Carla Cuthbert, Suzanne Cordovado
{"title":"CDC's Laboratory Activities to Support Newborn Screening for Spinal Muscular Atrophy.","authors":"Francis K Lee, Christopher Greene, Kristina Mercer, Jennifer Taylor, Golriz Yazdanpanah, Robert Vogt, Rachel Lee, Carla Cuthbert, Suzanne Cordovado","doi":"10.3390/ijns10030051","DOIUrl":"10.3390/ijns10030051","url":null,"abstract":"<p><p>Spinal muscular atrophy (SMA) was added to the HHS Secretary's Recommended Uniform Screening Panel for newborn screening (NBS) in 2018, enabling early diagnosis and treatment of impacted infants to prevent irreversible motor neuron damage. In anticipation of supporting SMA newborn screening, scientists at the U.S. Centers for Disease Control and Prevention (CDC) have worked towards building resources for public health laboratories in four phases since 2013. In Phase 1, CDC established a real-time PCR assay, which uses a locked nucleic acid probe to attain the needed specificity, to detect <i>SMN1</i> exon 7. In Phase 2, we developed quality assurance dried blood spot materials made with transduced lymphoblast cell lines established from de-identified SMA patients, carriers, and unaffected donors. In 2021, CDC implemented Phase 3, a proficiency testing program, that now supports 115 NBS labs around the world. We are currently completing Phase 4, which includes the implementation of an external SMA quality control material program. Also, during this time, CDC has provided individual technical assistance to NBS programs and bench training to NBS scientists during our annual molecular workshop. These CDC-led activities have contributed to the rapid and full implementation of SMA screening in all 50 U.S. states as of February 2024.</p>","PeriodicalId":14159,"journal":{"name":"International Journal of Neonatal Screening","volume":"10 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11270301/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Darija Šimić, Ana Šarić, Ana Škaričić, Ivan Lehman, Branka Bunoza, Ivana Rako, Ksenija Fumić
{"title":"One-Year Pilot Study Results of Newborn Screening for Spinal Muscular Atrophy in the Republic of Croatia.","authors":"Darija Šimić, Ana Šarić, Ana Škaričić, Ivan Lehman, Branka Bunoza, Ivana Rako, Ksenija Fumić","doi":"10.3390/ijns10030050","DOIUrl":"10.3390/ijns10030050","url":null,"abstract":"<p><p>Spinal muscular atrophy (SMA) is a neuromuscular and neurodegenerative disease caused by the homozygous deletion of <i>SMN1</i> exon 7 in 95% of cases. The prognosis for SMA patients has improved with the development of disease-modifying therapies, all of which are available in Croatia. The best treatment outcomes occur when therapy is applied before symptoms appear, making newborn screening (NBS) for SMA a crucial factor. Since SMA NBS is the first genetic test performed in our laboratory, for successful implementation of the program, we had to overcome logistical and organizational issues. Herein, we present the results of the SMA NBS during the one-year pilot project in Croatia and verify the suitability of the Targeted qPCR<sup>™</sup> SMA assay for SMA NBS. The pilot project started on 1 March 2023 in the Department for Laboratory Diagnostics of the University Hospital Center Zagreb. A total of 32,655 newborns were tested. Five SMA patients were detected, and their diagnoses were confirmed by the multiplex ligation-dependent probe amplification (MLPA) assay. There have been no false positive or false negative results, to our knowledge so far. The incidence of SMA determined during the pilot study is consistent with the SMA incidence data from other European countries.</p>","PeriodicalId":14159,"journal":{"name":"International Journal of Neonatal Screening","volume":"10 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11270348/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marianna H Raia, Molly M Lynch, Alyson C Ward, Jill A Brown, Natasha F Bonhomme, Vicki L Hunting
{"title":"One Size Does Not Fit All: A Multifaceted Approach to Educate Families about Newborn Screening.","authors":"Marianna H Raia, Molly M Lynch, Alyson C Ward, Jill A Brown, Natasha F Bonhomme, Vicki L Hunting","doi":"10.3390/ijns10030044","DOIUrl":"10.3390/ijns10030044","url":null,"abstract":"<p><p>All families deserve access to readily available, accurate, and relevant information to help them navigate the newborn screening system. Current practices, limited resources, and a siloed newborn screening system create numerous challenges for both providers and families to implement educational opportunities to engage families in ways that meet their needs with relevant and meaningful approaches. Engaging families in newborn screening, especially those from historically underserved communities, is necessary to increase knowledge and confidence which leads to overall improved outcomes for families. This article describes three strategies that the Navigate Newborn Screening Program developed, tested, and implemented in the United States, including online learning modules, a prenatal education pilot program, and social media awareness campaign, as well as the extent to which they were successful in reaching and educating families about newborn screening. Using quality improvement methods and evidence-driven approaches, each of these three strategies demonstrate promising practices for advancing awareness, knowledge, and self-efficacy for families navigating the newborn screening system-particularly families in medically underserved and underrepresented communities. A model for bidirectional engagement of families is outlined to support scaling and implementing promising educational efforts for both providers and families in the newborn screening system.</p>","PeriodicalId":14159,"journal":{"name":"International Journal of Neonatal Screening","volume":"10 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11270298/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Karen Bean, Simon A Jones, Anupam Chakrapani, Suresh Vijay, Teresa Wu, Heather Church, Charlotte Chanson, Andrew Olaye, Beckley Miller, Ivar Jensen, Francis Pang
{"title":"Exploring the Cost-Effectiveness of Newborn Screening for Metachromatic Leukodystrophy (MLD) in the UK.","authors":"Karen Bean, Simon A Jones, Anupam Chakrapani, Suresh Vijay, Teresa Wu, Heather Church, Charlotte Chanson, Andrew Olaye, Beckley Miller, Ivar Jensen, Francis Pang","doi":"10.3390/ijns10030045","DOIUrl":"10.3390/ijns10030045","url":null,"abstract":"<p><p>Metachromatic leukodystrophy (MLD) is a fatal inherited lysosomal storage disease that can be detected through newborn bloodspot screening. The feasibility of the screening assay and the clinical rationale for screening for MLD have been previously demonstrated, so the aim of this study is to determine whether the addition of screening for MLD to the routine newborn screening program in the UK is a cost-effective use of National Health Service (NHS) resources. A health economic analysis from the perspective of the NHS and Personal Social Services was developed based on a decision-tree framework for each MLD subtype using long-term outcomes derived from a previously presented partitioned survival and Markov economic model. Modelling inputs for parameters related to epidemiology, test characteristics, screening and treatment costs were based on data from three major UK specialist MLD hospitals, structured expert opinion and published literature. Lifetime costs and quality-adjusted life years (QALYs) were discounted at 1.5% to account for time preference. Uncertainty associated with the parameter inputs was explored using sensitivity analyses. This health economic analysis demonstrates that newborn screening for MLD is a cost-effective use of NHS resources using a willingness-to-pay threshold appropriate to the severity of the disease; and supports the inclusion of MLD into the routine newborn screening programme in the UK.</p>","PeriodicalId":14159,"journal":{"name":"International Journal of Neonatal Screening","volume":"10 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11270184/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758596","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Charting the Course: Towards a Comprehensive Newborn Screening Program in India.","authors":"Seema Kapoor, Amit Kumar Gupta, B K Thelma","doi":"10.3390/ijns10030043","DOIUrl":"10.3390/ijns10030043","url":null,"abstract":"<p><p>Integrating health interventions in a growing economy like India, with a birth cohort of 27 million/year, one-fifth of all childbirths, and approximately one-third of neonatal deaths globally, is a challenge. While mortality statistics are vital, intact survival and early preventive healthcare, such as newborn screening (NBS), are paramount. The appalling lack of information about the precise burden of metabolic errors at the state/national level or a mandated program encouraged a feasibility study of NBS in a prospective newborn cohort recruited in Delhi State (November 2014-April 2017) using a public-private partnership mode. The major determinants for effective implementation of universal NBS at the national level and limitations encountered are discussed in this report. Data to generate the 'core' panel for screening, sustained training of healthcare personnel, dissemination of the power of NBS to ensure neonatal/societal health to the public, and a 'national policy' emerge as priorities in a developing country.</p>","PeriodicalId":14159,"journal":{"name":"International Journal of Neonatal Screening","volume":"10 3","pages":""},"PeriodicalIF":4.0,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11270161/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141758595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}