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Inherited myopathies in the Middle East and North Africa. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2022.101674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Ezer S, Zuckerman S, Segel R, Zlotogora J. Carrier screening for Krabbe disease in an isolated inbred community. Am J Med Genet A 2022; 188:2555-2559. [PMID: 35775617 DOI: 10.1002/ajmg.a.62882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/14/2022] [Accepted: 04/20/2022] [Indexed: 01/24/2023]
Abstract
Infantile Krabbe disease (OMIM 245200) is a severe, fatal autosomal recessive neurodegenerative disorder that is relatively frequent in two Muslims villages within Jerusalem. After the characterization of the founder mutation, a population carrier screening for Krabbe disease became a component of the Israeli program for the detection and the prevention of birth defects. Between 2010 and 2018, 3366 individuals were tested and among them 247 carriers for Krabbe disease were identified (7.3%). Most of the 21 carrier couples identified that had pregnancies after being informed that they were at risk used preventive measures including termination of pregnancies of affected fetuses. During the study period, eight children affected with Krabbe disease were born in the villages, four to couples not detected though the program. Twenty years after the beginning of the carrier screening program, Krabbe disease remained relatively frequent in the villages. The establishment of a genetic clinic in the villages may allow to improve the carrier screening program while giving individual counseling for the risk to the other genetic diseases existing in the villages.
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Affiliation(s)
- Shlomit Ezer
- Department of Genetics, Hadassah Medical Organization, Jerusalem, Israel.,Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | - Shachar Zuckerman
- Medical Genetics Institute, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Reeval Segel
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel.,Medical Genetics Institute, Shaare Zedek Medical Center, Jerusalem, Israel
| | - Joël Zlotogora
- Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
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Chapla A, Johnson J, Korula S, Mohan N, Ahmed A, Varghese D, Rangasamy P, Ravichandran L, Jebasingh F, Kumar Agrawal K, Somasundaram N, Hesarghatta Shyamasunder A, Mathai S, Simon A, Jha S, Chowdry S, Venkatesan R, Raghupathy P, Thomas N. WFS1 Gene-associated Diabetes Phenotypes and Identification of a Founder Mutation in Southern India. J Clin Endocrinol Metab 2022; 107:1328-1336. [PMID: 35018440 DOI: 10.1210/clinem/dgac002] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Wolfram syndrome (WFS) is a rare autosomal recessive disorder characterized by juvenile-onset diabetes, diabetes insipidus, optic atrophy, deafness, and progressive neurodegeneration. However, due to the progressive nature of the disease and a lack of complete clinical manifestations, a confirmed diagnosis of WFS at the time of onset of diabetes is a challenge. OBJECTIVE With WFS1 rare heterozygous variants reported in diabetes, there is a need for comprehensive genetic screening strategies for the early diagnosis of WFS and delineating the phenotypic spectrum associated with the WFS1 gene variants in young-onset diabetes. METHODS This case series of 11 patients who were positive for WFS1 variants were identified with next-generation sequencing (NGS)-based screening of 17 genemonogenic diabetes panel. These results were further confirmed with Sanger sequencing. RESULTS 9 out of 11 patients were homozygous for pathogenic/likely pathogenic variants in the WFS1 gene. Interestingly, 3 of these probands were positive for the novel WFS1 (NM_006005.3): c.1107_1108insA (p.Ala370Serfs*173) variant, and haplotype analysis suggested a founder effect in 3 families from Southern India. Additionally, we identified 2 patients with young-onset diabetes who were heterozygous for a likely pathogenic variant or a variant of uncertain significance in the WFS1 gene. CONCLUSION These results project the need for NGS-based parallel multigene testing as a tool for early diagnosis of WFS and identify heterozygous WFS1 variants implicated in young-onset diabetes.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | - Anna Simon
- Christian Medical College Vellore, India
| | - Sujeet Jha
- Max Super Speciality Hospital, New Delhi, India
| | - Subhankar Chowdry
- Institute of Post-Graduate Medical Education and Research, Kolkotta, India
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Jin L, Han X, He F, Zhang C. Prevalence of methylmalonic acidemia among newborns and the clinical-suspected population: a meta-analyse. J Matern Fetal Neonatal Med 2021; 35:8952-8967. [PMID: 34847798 DOI: 10.1080/14767058.2021.2008351] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
IMPORTANCE Knowing the scale of rare inborn errors is important for screening and resource allocation. Evidence on the prevalence of methylmalonic acidemia (MMA) among newborns and the clinical-suspected population from large-scale screening programs needs to be systematically synthesized. OBJECTIVE To estimate the worldwide prevalence of MMA for newborns and the clinical-suspected population and explore the differences in different regions, periods, and diagnostic technologies. DATA SOURCES MEDLINE, Embase, CRD, Cochrane Library, Scopus, CINAHL, and PROSPERO. Study Selection: All studies reporting the epidemiology characteristics of MMA were selected. DATA EXTRACTION AND SYNTHESIS Characteristics of study, subjects, and epidemiology were extracted, random-effect models were used for meta-analyses. MAIN OUTCOME AND MEASURE Pooled prevalence of MMA. RESULTS This study included 111 studies. The pooled prevalence of MMA worldwide was 1.14 per 100,000 newborns (1516/190,229,777 newborns, 95% CI: 0.99-1.29) and 652.11 per 100,000 clinical-suspected patients (1360/4,805,665 clinical-suspected individuals, CI: 544.14-760.07). Asia and Africa got a higher pooled prevalence of MMA. The prevalence of MMA in newborns increased through the years, while that in the clinical-suspected population decreased. Collecting blood ≥ 72 h after birth had a higher pooled prevalence of MMA than collecting during 24 h-72 h after birth. The combining-use of MS/MS and GC/MS had a higher pooled prevalence than the single-use of MS/MS or GC/MS. Prevalence of cbl C, mut, cbl B, cbl A, isolated MMA, combined MMA and homocystinuria, vitamin B12-responsive MMA was synthesized. CONCLUSIONS AND RELEVANCE Prevalence of MMA among newborns was extremely low, but considerably high in the clinical-suspected population, indicating the need for more efficient newborn screening strategies and closer monitoring of the high-risk population for the early signs of MMA. Asia and Africa should attach importance to the high prevalence of MMA. Further diagnostic tests were recommended for the combining-use vs single-use of MS/MS and GC/MS and for collecting blood after 72 h vs during 24-72 h after birth.
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Affiliation(s)
- Lizi Jin
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, P. R. China.,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Xueyan Han
- Department of Medical Statistics, Peking University First Hospital, Beijing, P. R. China
| | - Falin He
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, P. R. China.,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
| | - Chuanbao Zhang
- National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology, Beijing, P. R. China.,Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, P. R. China
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DInur-Schejter Y, Stepensky P. Social determinants of health and primary immunodeficiency. Ann Allergy Asthma Immunol 2021; 128:12-18. [PMID: 34628007 DOI: 10.1016/j.anai.2021.10.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 12/15/2022]
Abstract
OBJECTIVE Inborn errors of immunity (IEI) are rare genetic conditions affecting the immune system. The rate of IEI and their presentation, course, and treatment are all affected by a multitude of social determinants, eventually affecting prognosis. This review summarizes the current knowledge of the social determinants affecting infectious susceptibility, genetic predisposition, diagnosis, and treatment of IEI. DATA SOURCES PubMed. STUDY SELECTIONS Search terms included "consanguinity," "social determinants," and "founder effect." Further studies were selected based on relevant citations. RESULTS Changes in climate and human behavior have modulated the spread of disease vectors and infectious organisms. Consanguinity increases the rate of autosomal recessive conditions, changes the distribution, and affects the severity of IEI. Access to sophisticated genetic and immunologic diagnostic modalities affects genetic counseling and timely diagnosis. Effective genetic counseling should address to the patient's genetic background and ethical code. Access to appropriate and timely treatment of immunodeficiencies is scarce in some regions of the world. CONCLUSION High consanguinity rate and reduced access to prophylactic measures increase the burden of immunodeficiencies in many low- and medium-income countries. Furthermore, poor access to diagnostic and treatment modalities in these regions adversely affects patients' prognosis. Increased awareness among health care professionals and the public and increased collaboration with Western countries aid in diagnosis of these conditions. Further advancements require improved public funding to the prevention, diagnosis, and treatment of IEI.
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Affiliation(s)
- Yael DInur-Schejter
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel; Department of Bone Marrow Transplantation and Cancer Immunotherapy, Hadassah Ein Kerem Medical Center, Jerusalem, Israel.
| | - Polina Stepensky
- Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel; Department of Bone Marrow Transplantation and Cancer Immunotherapy, Hadassah Ein Kerem Medical Center, Jerusalem, Israel
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Khayat M, Danial-Farran N, Chervinsky E, Zehavi Y, Peled-Peretz L, Gafni-Amsalem C, Hakrosh S, Abu-Leil Zouabi O, Tamir L, Mamlouk E, Zlotogora J, Shalev SA. The landscape of autosomal recessive variants in an isolated community: Implications for population screening for reproductive purposes. Clin Genet 2021; 100:522-528. [PMID: 34297361 DOI: 10.1111/cge.14032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 07/11/2021] [Accepted: 07/12/2021] [Indexed: 11/30/2022]
Abstract
As a result of the preference for consanguineous/endogamous marriages, the Israeli Arab population is composed of isolated communities with relatively frequent autosomal recessive (AR) conditions in each community. Clinical diagnosis of affected individuals has uncovered the pathogenic variants throughout the years. We investigated the diversity of pathogenic AR variants in a single village in northern Israel by exome analysis of 50 random, healthy adults descendants of the founders. Only likely pathogenic and pathogenic variants in known AR genes were selected. In this study 48 AR variants were found, of which 12 had been previously diagnosed in patients from this village, and for 11 with a frequency compatible with the frequency already known. Among the other 36 variants, 12 had been previously diagnosed in affected individuals in other Arab communities in Israel and 24 variants had not been previously characterized in this population. Of the 35 variants associated with conditions of moderate-severe medical consequences, only eight were known previously in this village. These findings emphasize the importance to better delineate the conditions at risk in a defined community, in particular for the development of preventive measures such as screening tests for reproductive couples, and for genetic counseling.
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Affiliation(s)
- Morad Khayat
- Genetics Institute, Emek Medical Center, Afula, Israel
| | | | | | - Yoav Zehavi
- Genetics Institute, Emek Medical Center, Afula, Israel
| | | | | | | | | | - Liron Tamir
- Genetics Institute, Emek Medical Center, Afula, Israel
| | - Efrat Mamlouk
- Genetics Institute, Emek Medical Center, Afula, Israel
| | - Joël Zlotogora
- Hadassah-Hebrew University Medical School, The Hebrew University, Jerusalem, Israel
| | - Stavit A Shalev
- Genetics Institute, Emek Medical Center, Afula, Israel.,Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
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Castilla-Vallmanya L, Gürsoy S, Giray-Bozkaya Ö, Prat-Planas A, Bullich G, Matalonga L, Centeno-Pla M, Rabionet R, Grinberg D, Balcells S, Urreizti R. De Novo PORCN and ZIC2 Mutations in a Highly Consanguineous Family. Int J Mol Sci 2021; 22:ijms22041549. [PMID: 33557041 PMCID: PMC7913830 DOI: 10.3390/ijms22041549] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 01/27/2021] [Accepted: 01/31/2021] [Indexed: 02/07/2023] Open
Abstract
We present a Turkish family with two cousins (OC15 and OC15b) affected with syndromic developmental delay, microcephaly, and trigonocephaly but with some phenotypic traits distinct between them. OC15 showed asymmetrical skeletal defects and syndactyly, while OC15b presented with a more severe microcephaly and semilobal holoprosencephaly. All four progenitors were related and OC15 parents were consanguineous. Whole Exome Sequencing (WES) analysis was performed on patient OC15 as a singleton and on the OC15b trio. Selected variants were validated by Sanger sequencing. We did not identify any shared variant that could be associated with the disease. Instead, each patient presented a de novo heterozygous variant in a different gene. OC15 carried a nonsense mutation (p.Arg95*) in PORCN, which is a gene responsible for Goltz-Gorlin syndrome, while OC15b carried an indel mutation in ZIC2 leading to the substitution of three residues by a proline (p.His404_Ser406delinsPro). Autosomal dominant mutations in ZIC2 have been associated with holoprosencephaly 5. Both variants are absent in the general population and are predicted to be pathogenic. These two de novo heterozygous variants identified in the two patients seem to explain the major phenotypic alterations of each particular case, instead of a homozygous variant that would be expected by the underlying consanguinity.
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Affiliation(s)
- Laura Castilla-Vallmanya
- IBUB, IRSJD, and CIBERER (ISCIII), Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain; (L.C.-V.); (A.P.-P.); (M.C.-P.); (R.R.); (D.G.); (S.B.)
| | - Semra Gürsoy
- Department of Pediatric Genetics, Dr. Behcet Uz Children’s Hospital, Izmir 35210, Turkey;
| | - Özlem Giray-Bozkaya
- Department of Pediatric Genetics, Faculty of Medicine, Dokuz Eylul University, Izmir 35340, Turkey;
| | - Aina Prat-Planas
- IBUB, IRSJD, and CIBERER (ISCIII), Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain; (L.C.-V.); (A.P.-P.); (M.C.-P.); (R.R.); (D.G.); (S.B.)
| | - Gemma Bullich
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain; (G.B.); (L.M.)
| | - Leslie Matalonga
- CNAG-CRG, Centre for Genomic Regulation (CRG), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain; (G.B.); (L.M.)
| | - Mónica Centeno-Pla
- IBUB, IRSJD, and CIBERER (ISCIII), Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain; (L.C.-V.); (A.P.-P.); (M.C.-P.); (R.R.); (D.G.); (S.B.)
| | - Raquel Rabionet
- IBUB, IRSJD, and CIBERER (ISCIII), Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain; (L.C.-V.); (A.P.-P.); (M.C.-P.); (R.R.); (D.G.); (S.B.)
| | - Daniel Grinberg
- IBUB, IRSJD, and CIBERER (ISCIII), Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain; (L.C.-V.); (A.P.-P.); (M.C.-P.); (R.R.); (D.G.); (S.B.)
| | - Susanna Balcells
- IBUB, IRSJD, and CIBERER (ISCIII), Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain; (L.C.-V.); (A.P.-P.); (M.C.-P.); (R.R.); (D.G.); (S.B.)
| | - Roser Urreizti
- IBUB, IRSJD, and CIBERER (ISCIII), Department of Genetics, Microbiology and Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain; (L.C.-V.); (A.P.-P.); (M.C.-P.); (R.R.); (D.G.); (S.B.)
- Correspondence:
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Kyei S, Obeng PA, Kwarteng MA, Assiamah F. Epidemiology and clinical presentation of glaucoma in a referral facility in Ghana: Any lessons for public health intervention? PLoS One 2021; 16:e0245486. [PMID: 33449975 PMCID: PMC7810334 DOI: 10.1371/journal.pone.0245486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 01/03/2021] [Indexed: 11/18/2022] Open
Abstract
The purpose of this study was to evaluate the epidemiological and clinical profile of patients living with glaucoma and receiving care in a tertiary eye center in Ghana. This was a hospital-based retrospective study of clinical records of glaucoma patients from January 2010 to December 2019. The study involved collating demographic information of patients, clinical presentation, and the management of glaucoma. A total of nineteen thousand (19,000) charts were retrieved from the eye center's archives. Out of these, 660 (3.5%) records of patients qualified for the study and were analyzed. There were 398 (60.3%) males and 262 (39.7%) females. Their ages ranged from 9 to 86 years (mean age = 47.30; SD ± 16.86 years). The averages of ocular parameters of 1,320 eyes (660 patients) were visual acuity = 0.26 ± 0.55 logMAR; intraocular pressure: 17.31 ± 6.11 mmHg; cup-to-disc ratios: 0.67 ± 0.17 D; and the average retinal nerve fibers thickness was 95.03 ± 21.74 μm. The mainstay of treatment was the sole use of medication. Males were the major group receiving glaucoma care at the tertiary level. Glaucoma cases included juveniles but the mean age suggests most were of adult-onset. Socio-demographic characteristics affected the diagnosis and management of glaucoma among patients receiving care at a referral center. Public health, stakeholders, and policymakers' interventions can help identify individuals with glaucoma.
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Affiliation(s)
- Samuel Kyei
- Department of Optometry and Vision Science, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
- * E-mail:
| | - Patience Asantewaa Obeng
- Department of Optometry and Vision Science, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
| | - Michael Agyemang Kwarteng
- Department of Optometry, Faculty of Science and Engineering, Bindura University of Science Education, Bindura, Zimbabwe
| | - Frank Assiamah
- Department of Optometry and Vision Science, School of Allied Health Sciences, College of Health and Allied Sciences, University of Cape Coast, Cape Coast, Ghana
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Singer A, Sagi-Dain L. Impact of a national genetic carrier-screening program for reproductive purposes. Acta Obstet Gynecol Scand 2020; 99:802-808. [PMID: 32242916 DOI: 10.1111/aogs.13858] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 03/13/2020] [Accepted: 03/23/2020] [Indexed: 01/19/2023]
Abstract
INTRODUCTION The Israeli population, encompassing 9 million citizens, is comprised of diverse communities. The Ministry of Health genetic screening program for reproductive purposes was introduced in 2013. This program is mainly aimed at severe incurable diseases with high rates of infant and childhood morbidity and/or mortality, with a carrier frequency of at least 1:60 and/or a disease frequency of 1 in 15 000 live births. In this paper, we present the results of the national genetic carrier-screening program implementation. MATERIAL AND METHODS Data acquisition for this study was performed by retrospectively searching Ministry of Health database, which includes the reports of 18 genetic laboratories performing genetic screening tests. RESULTS During 2015-2017, a total of 919 820 carrier-screening genetic tests were executed. The overall number rose by 14.9% over these years. For about two-thirds of the presented disorders, carrier frequency was within the expected range. A decrease of 57% was noted in the observed number of patients with spinal muscular atrophy born during 2014-2017, compared with the expected rate. Familial dysautonomia, Canavan and Tay-Sachs diseases yielded a very low prevalence. CONCLUSIONS Our results highlight the impact of a national genetic carrier-screening program. Couples at risk of an affected fetus mostly choose to perform preconception or prenatal diagnosis and to act accordingly. Our country has several characteristics enabling us to achieve this success, including considerable rates of endogamy and consanguineous marriages, increased frequency of founder mutations, and high fertility rates. In addition, wide accessibility of the tests and good compliance of the population must be noted. Still, raising the awareness and continuing education of population and caregivers about the importance and efficiency of carrier screening remains an important issue. Finally, expanding the existing tests into a uniform, wide genetic panel seems to be the next goal.
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Affiliation(s)
- Amihood Singer
- Community Genetics, Public Health Services, Ministry of Health, Jerusalem, Israel
| | - Lena Sagi-Dain
- Genetics Institute, Carmel Medical Center, Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
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Sagi-Dain L, Weissman I, Cohen-Kfir N, Kalfon L, Edri N, Shasha Lavski H, Peleg A, Falik-Zaccai TC. Genetic counseling of high-risk isolated populations: A worldwide challenge. Birth Defects Res 2020; 112:316-320. [PMID: 32115902 DOI: 10.1002/bdr2.1633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/01/2019] [Accepted: 12/05/2019] [Indexed: 11/09/2022]
Abstract
BACKGROUND Isolated populations with high rates of consanguinity and genetic disorders can be found in most parts of the world. The aim of our paper was to highlight the unique challenges faced in genetic counseling for such patients and to discuss the ways to facilitate the difficulties, with an emphasis on the crucial role of electronic medical records (EMR). CASE We report a couple presenting with elevated maternal alpha-fetoprotein in three pregnancies, in which an erroneous diagnosis of epidermolysis bullosa was established in the past and carried along through several years. The live born proband had no evidence of skin disease; however, soon after birth she was diagnosed with congenital nephrotic syndrome. Sequencing of NPHS1 gene yielded a homozygous likely pathogenic genetic variant c.2104G > A (p.Gly702Arg). Population screening performed in the village of residence revealed a carrier frequency of 1-47. This high frequency justified including testing for the founder genetic variant in the national program for population screening. CONCLUSIONS Our report highlights the caution, suspicion and time investment which should be practiced and addressed in genetic counseling of high-risk isolated populations. Using EMR may facilitate reaching the correct diagnosis, enable accurate genetic counseling and provide information for decision-making to the couples, as well as "save" a large community from devastating diseases.
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Affiliation(s)
- Lena Sagi-Dain
- Genetics Institute, Carmel Medical Center, Affiliated to the Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Irith Weissman
- Pediatric Nephrology Department, Galilee Medical Center, Nahariya, Israel
| | - Nehama Cohen-Kfir
- Institute of Human Genetics, Galilee Medical Center, Nahariya, Israel.,The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
| | - Limor Kalfon
- Institute of Human Genetics, Galilee Medical Center, Nahariya, Israel
| | - Nurit Edri
- Institute of Human Genetics, Galilee Medical Center, Nahariya, Israel
| | | | - Amir Peleg
- Genetics Institute, Carmel Medical Center, Affiliated to the Ruth and Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
| | - Tzipora C Falik-Zaccai
- Institute of Human Genetics, Galilee Medical Center, Nahariya, Israel.,The Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel
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Global perspectives on primary immune deficiency diseases. STIEHM'S IMMUNE DEFICIENCIES 2020. [PMCID: PMC7258797 DOI: 10.1016/b978-0-12-816768-7.00054-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Thain E, Shuman C, Miller K, Sappleton K, Myles‐Reid D, Chitayat D, Gibbons C. Prenatal and preconception genetic counseling for consanguinity: Consanguineous couples' expectations, experiences, and perspectives. J Genet Couns 2019; 28:982-992. [DOI: 10.1002/jgc4.1150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 06/18/2019] [Indexed: 01/30/2023]
Affiliation(s)
- Emily Thain
- Department of Molecular Genetics University of Toronto Toronto ON Canada
- Division of Clinical and Metabolic Genetics, Department of Pediatrics The Hospital for Sick Children Toronto ON Canada
- Department of Genetic Counselling The Hospital for Sick Children Toronto ON Canada
- Familial Cancer Clinic Princess Margaret Cancer Centre Toronto ON Canada
| | - Cheryl Shuman
- Department of Molecular Genetics University of Toronto Toronto ON Canada
- Division of Clinical and Metabolic Genetics, Department of Pediatrics The Hospital for Sick Children Toronto ON Canada
- Department of Genetic Counselling The Hospital for Sick Children Toronto ON Canada
| | - Kristen Miller
- Department of Molecular Genetics University of Toronto Toronto ON Canada
- Genetics Program North York General Hospital Toronto ON Canada
| | - Karen Sappleton
- The Hospital for Sick Children Centre for Innovation and Excellence in Child and Family‐Centred Care Toronto ON Canada
| | - Diane Myles‐Reid
- Department of Molecular Genetics University of Toronto Toronto ON Canada
- Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynecology Mount Sinai Hospital Toronto ON Canada
| | - David Chitayat
- Department of Molecular Genetics University of Toronto Toronto ON Canada
- Division of Clinical and Metabolic Genetics, Department of Pediatrics The Hospital for Sick Children Toronto ON Canada
- Prenatal Diagnosis and Medical Genetics Program, Department of Obstetrics and Gynecology Mount Sinai Hospital Toronto ON Canada
| | - Clare Gibbons
- Department of Molecular Genetics University of Toronto Toronto ON Canada
- Genetics Program North York General Hospital Toronto ON Canada
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