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Oladayo AM, Prochaska S, Busch T, Adeyemo WL, Gowans LJJ, Eshete M, Awotoye W, Sule V, Alade A, Adeyemo AA, Mossey PA, Prince A, Murray JC, Butali A. Parents and Provider Perspectives on the Return of Genomic Findings for Cleft Families in Africa. AJOB Empir Bioeth 2024; 15:133-146. [PMID: 38236653 DOI: 10.1080/23294515.2024.2302993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/21/2024]
Abstract
BACKGROUND Inadequate knowledge among health care providers (HCPs) and parents of affected children limits the understanding and utility of secondary genetic findings (SFs) in under-represented populations in genomics research. SFs arise from deep DNA sequencing done for research or diagnostic purposes and may burden patients and their families despite their potential health importance. This study aims to evaluate the perspective of both groups regarding SFs and their choices in the return of results from genetic testing in the context of orofacial clefts. METHODS Using an online survey, we evaluated the experiences of 252 HCPs and 197 parents across participating cleft clinics in Ghana and Nigeria toward the return of SFs across several domains. RESULTS Only 1.6% of the HCPs felt they had an expert understanding of when and how to incorporate genomic medicine into practice, while 50.0% agreed that all SFs should be returned to patients. About 95.4% of parents were willing to receive all the information from genetic testing (including SFs), while the majority cited physicians as their primary information source (64%). CONCLUSIONS Overall, parents and providers were aware that genetic testing could help in the clinical management of diseases. However, they cited a lack of knowledge about genomic medicine, uncertain clinical utility, and lack of available learning resources as barriers. The knowledge gained from this study will assist with developing guidelines and policies to guide providers on the return of SFs in sub-Saharan Africa and across the continent.
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Affiliation(s)
- Abimbola M Oladayo
- Department Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Sydney Prochaska
- Department of Global Health, College of Public Health, University of Iowa, Iowa City, Iowa, USA
| | - Tamara Busch
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Wasiu L Adeyemo
- Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
| | - Lord J J Gowans
- Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Mekonen Eshete
- Department of Surgery, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
| | - Waheed Awotoye
- Department Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | - Veronica Sule
- Department of Operative Dentistry, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
| | - Azeez Alade
- Department Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
| | | | - Peter A Mossey
- Department of Orthodontics, University of Dundee, Dundee, UK
| | - Anya Prince
- College of Law, University of Iowa, Iowa City, Iowa, USA
| | - Jeffrey C Murray
- Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA
| | - Azeez Butali
- Department Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
- Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
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Xie X, Huang B, Su L, Cai M, Chen Y, Wu X, Xu L. Prenatal diagnosis and genetic etiology analysis of talipes equinovarus by chromosomal microarray analysis. BMC Med Genomics 2023; 16:298. [PMID: 37986075 PMCID: PMC10658977 DOI: 10.1186/s12920-023-01733-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Accepted: 11/09/2023] [Indexed: 11/22/2023] Open
Abstract
BACKGROUND With the advancement of molecular technology, fetal talipes equinovarus (TE) is believed to be not only associated with chromosome aneuploidy, but also related to chromosomal microdeletion and microduplication. The study aimed to explore the molecular etiology of fetal TE and provide more information for the clinical screening and genetic counseling of TE by Chromosomal Microarray Analysis (CMA). METHODS This retrospectively study included 131 fetuses with TE identified by ultrasonography. Conventional karyotyping and SNP array analysis were performed for all the subjects. They were divided into isolated TE group (n = 55) and complex group (n = 76) according to structural anomalies. RESULTS Among the total of 131 fetuses, karyotype analysis found 12(9.2%) abnormal results, while SNP array found 27 (20.6%) cases. Trisomy 18 was detected most frequently among abnormal karyotypes. The detection rate of SNP array was significantly higher than that of traditional chromosome karyotype analysis (P < 0.05). SNP array detected 15 (11.5%) cases of submicroscopic abnormalities that karyotype analysis did not find. The most common CNV was the 22q11.2 microdeletion. For both analyses, the overall detection rates were significantly higher in the complex TE group than in the isolated TE group (karyotype: P < 0.05; SNP array: P < 0.05). The incremental yield of chromosomal abnormalities in fetuses with unilateral TE (22.0%) was higher than in fetuses with bilateral TE (19.8%), but this difference was not statistically significant (P > 0.05). Abnormal chromosomes were most frequently detected in fetuses with TE plus cardiovascular system abnormalities. CONCLUSION Fetal TE is related to chromosomal microdeletion or microduplication. Prenatal diagnosis is recommended for fetuses with TE, and CMA testing is preferred. CMA can improve the detection rate of chromosomal abnormalities associated with fetal TE, especially in pregnancies with complex TE.
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Affiliation(s)
- Xiaorui Xie
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Provincial Maternity and Children's Hospital, No. 18 Daoshan Road, Gulou District, Fuzhou, 350001, China
| | - Baojia Huang
- Prenatal Diagnosis Center, Quanzhou Maternity and Children's Hospital, Quanzhou, China
| | - Linjuan Su
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Provincial Maternity and Children's Hospital, No. 18 Daoshan Road, Gulou District, Fuzhou, 350001, China
| | - Meiying Cai
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Provincial Maternity and Children's Hospital, No. 18 Daoshan Road, Gulou District, Fuzhou, 350001, China
| | - Yuqin Chen
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Provincial Maternity and Children's Hospital, No. 18 Daoshan Road, Gulou District, Fuzhou, 350001, China
| | - Xiaoqing Wu
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Provincial Maternity and Children's Hospital, No. 18 Daoshan Road, Gulou District, Fuzhou, 350001, China.
| | - Liangpu Xu
- Medical Genetic Diagnosis and Therapy Center, Fujian Key Laboratory for Prenatal Diagnosis and Birth Defect, Fujian Provincial Maternity and Children's Hospital, No. 18 Daoshan Road, Gulou District, Fuzhou, 350001, China.
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Costa SM, Saramago M, Matos RG, Arraiano CM, Viegas SC. How hydrolytic exoribonucleases impact human disease: Two sides of the same story. FEBS Open Bio 2022. [PMID: 35247037 DOI: 10.1002/2211-5463.13392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/16/2022] [Accepted: 03/03/2022] [Indexed: 11/05/2022] Open
Abstract
RNAs are extremely important molecules inside the cell which perform many different functions. For example, messenger RNAs, transfer RNAs, and ribosomal RNAs are involved in protein synthesis, whereas non-coding RNAs have numerous regulatory roles. Ribonucleases are the enzymes responsible for the processing and degradation of all types of RNAs, having multiple roles in every aspect of RNA metabolism. However, the involvement of RNases in disease is still not well understood. This review focuses on the involvement of the RNase II/RNB family of 3'-5' exoribonucleases in human disease. This can be attributed to direct effects, whereby mutations in the eukaryotic enzymes of this family (Dis3 (or Rrp44), Dis3L1 (or Dis3L), and Dis3L2) are associated with a disease, or indirect effects, whereby mutations in the prokaryotic counterparts of RNase II/RNB family (RNase II and/or RNase R) affect the physiology and virulence of several human pathogens. In this review, we will compare the structural and biochemical characteristics of the members of the RNase II/RNB family of enzymes. The outcomes of mutations impacting enzymatic function will be revisited, in terms of both the direct and indirect effects on disease. Furthermore, we also describe the SARS-CoV-2 viral exoribonuclease and its importance to combat COVID-19 pandemic. As a result, RNases may be a good therapeutic target to reduce bacterial and viral pathogenicity. These are the two perspectives on RNase II/RNB family enzymes that will be presented in this review.
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Affiliation(s)
- Susana M Costa
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, EAN, 2780-157, Oeiras, Portugal
| | - Margarida Saramago
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, EAN, 2780-157, Oeiras, Portugal
| | - Rute G Matos
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, EAN, 2780-157, Oeiras, Portugal
| | - Cecília M Arraiano
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, EAN, 2780-157, Oeiras, Portugal
| | - Sandra C Viegas
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, EAN, 2780-157, Oeiras, Portugal
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