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Krzyścin M, Sowińska-Przepiera E, Gruca-Stryjak K, Soszka-Przepiera E, Syrenicz I, Przepiera A, Bumbulienė Ž, Syrenicz A. Are Young People with Turner Syndrome Who Have Undergone Treatment with Growth and Sex Hormones at Higher Risk of Metabolic Syndrome and Its Complications? Biomedicines 2024; 12:1034. [PMID: 38790996 PMCID: PMC11118016 DOI: 10.3390/biomedicines12051034] [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: 04/07/2024] [Revised: 04/21/2024] [Accepted: 04/30/2024] [Indexed: 05/26/2024] Open
Abstract
INTRODUCTION Metabolic syndrome (MetS), characterized by visceral obesity, glucose abnormalities, hypertension and dyslipidemia, poses a significant risk of diabetes and cardiovascular disease. Turner syndrome (TS), resulting from X chromosome abnormalities, carries health complications. Despite growing evidence of an increased risk of MetS in women with TS, its prevalence and risk factors remain under investigation. These considerations are further complicated by the varying timing and dosages of treatment with growth hormone and sex hormones. METHODS We conducted a cross-sectional study comparing 44 individuals with TS with 52 age-matched control subjects. Growth hormone treatment in the study group was administered for varying lengths of time, depending on clinical response. We collected anthropometric, metabolic, endocrine and body composition data. Statistical analyses included logistic regression. RESULTS Baseline characteristics, including age, BMI and height, were comparable between the TS and control groups. Hormonally, individuals with TS showed lower levels of testosterone, DHEA-S, and cortisol, as well as elevated FSH. Lipid profiles indicated an atherogenic profile, and the body composition analysis showed increased visceral adipose tissue in those with TS. Other metabolic abnormalities were common in individuals with TS too, including hypertension and impaired fasting glucose levels. The risk of MetS components was assessed in subgroups according to karyotypes: monosomy 45X0 vs. other mosaic karyotypes. Logistic regression analysis showed a significant association between increased visceral adipose tissue in subjects with TS. Those with metabolic complications tended to have less muscle strength compared to those without these complications in both the study and control groups. CONCLUSIONS This study highlights the unique metabolic and cardiovascular risk profile of individuals with TS, characterized by atherogenic lipids, higher levels of visceral adipose tissue and increased metabolic abnormalities. These findings underscore the importance of monitoring metabolic health in individuals with TS, regardless of age, BMI or karyotype, and suggest the potential benefits of lifestyle modification, building more muscle strength, and weight control strategies. Further research is needed to better understand and address the metabolic challenges faced by women with TS.
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Affiliation(s)
- Mariola Krzyścin
- Pediatric and Adolescent Gynecology Clinic, Department of Gynecology, Endocrinology and Gynecological Oncology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Elżbieta Sowińska-Przepiera
- Pediatric and Adolescent Gynecology Clinic, Department of Gynecology, Endocrinology and Gynecological Oncology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
- Department of Endocrinology, Metabolic and Internal Diseases, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Karolina Gruca-Stryjak
- Department of Perinatology and Gynecology, Poznan University of Medical Sciences, 60-535 Poznań, Poland
- Centers for Medical Genetics GENESIS, ul. Dąbrowskiego 77a, 60-529 Poznań, Poland
| | - Ewelina Soszka-Przepiera
- II-nd Department of Ophthalmology, Pomeranian Medical University in Szczecin, Al. Powstancow Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Igor Syrenicz
- Department of Endocrinology, Metabolic and Internal Diseases, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
| | - Adam Przepiera
- Department of Urology and Urologic Oncology, Pomeranian Medical University in Szczecin, Al. Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Žana Bumbulienė
- Center for Obstetrics and Gynecology, Vilnius University Hospital Santaros Klinikos, Vilnius University, Faculty of Medicine, LT-03101 Vilnius, Lithuania
| | - Anhelli Syrenicz
- Department of Endocrinology, Metabolic and Internal Diseases, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-252 Szczecin, Poland
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Naessén S, Eliasson M, Berntorp K, Kitlinski M, Trimpou P, Amundson E, Thunström S, Ekman B, Wahlberg J, Karlsson A, Isaksson M, Bergström I, Levelind C, Bryman I, Landin-Wilhelmsen K. Autoimmune Disease in Turner Syndrome in Sweden: An up to 25 Years' Controlled Follow-up Study. J Clin Endocrinol Metab 2024; 109:e602-e612. [PMID: 37758506 PMCID: PMC10795927 DOI: 10.1210/clinem/dgad566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/11/2023] [Accepted: 09/22/2023] [Indexed: 10/02/2023]
Abstract
CONTEXT Turner syndrome (TS) is the most common chromosomal aberration in women; it is the result of structural or numeric abnormalities in the X chromosome. Autoimmune hypothyroidism has been recognized as one of the more prominent disorders associated with TS. OBJECTIVE This work aimed to study the prevalence of autoimmune diseases in TS. METHODS A cross-sectional, longitudinal, 25-year follow-up study was conducted of patients from adult Turner centers at the University Hospitals, Sweden. During 1994 to 2020, a total of 503 women aged 16 to 71 years with TS were evaluated consecutively every fifth year according to national guidelines. A random population sample of women, n = 401, aged 25 to 44 years, from the World Health Organization Monitoring of Trends and Determinants for Cardiovascular Disease (MONICA) project served as controls. Serum thyrotropin, free thyroxine, vitamin B12, antithyroid peroxidase (anti-TPO), and antitransglutaminase antibodies were measured. RESULTS Mean follow-up time (years) was 16 ± 7 for patients and 13 ± 1 for controls. From study start, the prevalence increased in TS for hypothyroidism 40% to 58%, vitamin B12 deficiency 5% to 12%, celiac disease 4% to 7%, positive anti-TPO 26% to 41%, and antitransglutaminase antibodies 6% to 8% (P < .0001 vs controls). Type 1 diabetes and Addison disease were rare. The only interrelationship was between hypothyroidism and vitamin B12 deficiency, both in TS and controls. No association between autoimmune disease and karyotype, antecedent growth hormone treatment, or ongoing estrogen hormone replacement, was seen in TS. CONCLUSION In women with TS up to older than 80 years, more than half developed hypothyroidism, mainly autoimmune, during follow-up. Awareness of vitamin B12 deficiency and celiac disease throughout life is also recommended in women with TS.
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Affiliation(s)
- Sabine Naessén
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
- Academic Primary Health Care Centre, 117 63 Stockholm, Sweden
| | | | - Kerstin Berntorp
- Genomics, Diabetes and Endocrinology Research Unit, Department of Clinical Sciences Malmö, Lund University, 222 42 Malmö, Sweden
- Department of Endocrinology, Skåne University Hospital, 214 28 Malmö, Sweden
| | - Margareta Kitlinski
- Department of Reproductive Medicine, Skåne University Hospital, 214 28 Malmö, Sweden
| | - Penelope Trimpou
- Section of Endocrinology, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 413 45 Gothenburg, Sweden
| | - Emily Amundson
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 413 45 Gothenburg, Sweden
- Department of Respiratory Medicine, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden
| | - Sofia Thunström
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 413 45 Gothenburg, Sweden
- Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden
| | - Bertil Ekman
- Department of Endocrinology, Linköping University Hospital, 581 85 Linköping, Sweden
| | - Jeanette Wahlberg
- Department of Medicine, Örebro University Hospital, 701 85 Örebro, Sweden
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, 701 12 Örebro, Sweden
| | - Anders Karlsson
- Department of Medical Sciences, Uppsala University, Uppsala University Hospital, 751 85 Uppsala, Sweden
| | - Magnus Isaksson
- Department of Medical Sciences, Uppsala University, Uppsala University Hospital, 751 85 Uppsala, Sweden
| | - Ingrid Bergström
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, 171 77 Solna, Sweden
| | - Carina Levelind
- Department of Women’s and Children’s Health, Karolinska Institutet, 171 77 Stockholm, Sweden
| | - Inger Bryman
- Department of Obstetrics and Gynecology, Institute of Clinical Sciences, Sahlgrenska Academy at the University of Gothenburg, 413 45 Gothenburg, Sweden
| | - Kerstin Landin-Wilhelmsen
- Section of Endocrinology, Sahlgrenska University Hospital, 413 45 Gothenburg, Sweden
- Department of Internal Medicine and Clinical Nutrition, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, 413 45 Gothenburg, Sweden
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Nadesapillai S, van der Velden J, van der Coelen S, Schleedoorn M, Sedney A, Spath M, Schurink M, Oerlemans A, IntHout J, Beerendonk I, Braat D, Peek R, Fleischer K. TurnerFertility trial: fertility preservation in young girls with Turner syndrome by freezing ovarian cortex tissue-a prospective intervention study. Fertil Steril 2023; 120:1048-1060. [PMID: 37549836 DOI: 10.1016/j.fertnstert.2023.08.004] [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: 05/25/2023] [Revised: 07/26/2023] [Accepted: 08/01/2023] [Indexed: 08/09/2023]
Abstract
OBJECTIVE To evaluate which girls with Turner syndrome (TS) could benefit from fertility preservation by ovarian tissue cryopreservation on the basis of karyotype, puberty status, and hormonal data. DESIGN Prospective intervention study; participants were included between 2018 and 2020. SETTING Tertiary hospital in the Netherlands. PATIENTS In total, 106 girls with TS aged between 2 and 18 years were included. Girls with minor X chromosome deletions, Y chromosomal content, active infections, or contraindications for surgery were excluded. INTERVENTION A laparoscopic unilateral ovariectomy was performed to obtain ovarian cortical tissue for cryopreservation. One tissue fragment per participant was used to determine the number of follicles per ovary by serial sectioning and staining. Chromosome analysis was performed on lymphocytes and buccal cells. A blood sample was taken before the ovariectomy for hormonal analysis. MAIN OUTCOME MEASURES The presence of follicles in ovarian cortex tissue from girls with TS in relation to karyotype, puberty status, and hormonal data. RESULTS A unilateral ovariectomy was performed on 93 girls with TS. Complications after surgery occurred in 5 girls, including luxation of psychological symptoms in 2 girls. In 13 (14%) girls, a 46,XX cell line was found in buccal cells that was absent in lymphocytes. Follicles were observed in 30 (32%) of the 93 girls and were found mainly in girls with a 46,XX cell line in lymphocytes or buccal cells (Phi coefficient = 0.55). Spontaneous onset of puberty (Phi coefficient = 0.59), antimüllerian hormone (AMH; point-biserial correlation [r] = 0.82), inhibin B (r = 0.67), and follicle-stimulating hormone (r = -0.46) levels were also correlated strongly with the presence of follicles. Furthermore, AMH levels had a significant correlation with the number of follicles per ovary (r = 0.66). CONCLUSION Favorable predictive markers for the presence of follicles included either a 46,XX cell line, spontaneous onset of puberty, or a combination of measurable AMH and normal follicle-stimulating hormone levels. Karyotyping of two peripheral cell lines in girls with TS is recommended to reveal hidden mosaicisms. Ovarian tissue cryopreservation should be offered with caution in a research setting to those with a sufficient ovarian reserve, considering the significant loss of follicles after ovarian tissue cryopreservation and autotransplantation. Physicians should pay attention to the mental health of the girls during the whole process. CLINICAL TRIAL REGISTRATION NUMBER Trial registration number: NCT03381300- Preservation of Ovarian Cortex Tissue in Girls With Turner Syndrome - Full Text View - ClinicalTrials.gov. Registered on: December 21, 2017. First patient recruited on January 1, 2018.
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Affiliation(s)
- Sapthami Nadesapillai
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands.
| | - Janielle van der Velden
- Department of Pediatrics, Amalia's Children's Hospital, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Sanne van der Coelen
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Myra Schleedoorn
- Emergency Department, County Hospital Lohr am Main, Am Sommerberg, Lohr am Main, Germany
| | - Amy Sedney
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Marian Spath
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Maarten Schurink
- Department of Pediatric Surgery, Amalia's Children's Hospital, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Anke Oerlemans
- IQ Healthcare, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Joanna IntHout
- Department for Health Evidence, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Ina Beerendonk
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Didi Braat
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Ronald Peek
- Department of Obstetrics and Gynecology, Radboud University Medical Center, Nijmegen, Gelderland, the Netherlands
| | - Kathrin Fleischer
- Department of Reproductive Medicine, Nij Geertgen Center for Fertility, Ripseweg, Elsendorp, the Netherlands
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Andersen ALR, Urhoj SK, Tan J, Cavero-Carbonell C, Gatt M, Gissler M, Klungsoyr K, Khoshnood B, Morris J, Neville AJ, Pierini A, Scanlon I, de Walle HEK, Wellesley D, Garne E, Loane M. The burden of disease for children born alive with Turner syndrome-A European cohort study. Birth Defects Res 2023; 115:1459-1468. [PMID: 37493268 DOI: 10.1002/bdr2.2222] [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: 04/08/2023] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 07/27/2023]
Abstract
BACKGROUND Turner syndrome is a rare congenital anomaly caused by complete or partial X chromosome monosomy that may affect mortality and morbidity in childhood. METHODS This population-based data-linkage cohort study, as part of the EUROlinkCAT project, investigated mortality and morbidity for the first 5 years of life for liveborn European children diagnosed with Turner syndrome. Thirteen population-based registries in 10 countries from the European surveillance of congenital anomalies (EUROCAT) network participated. Data on children born 1995-2014 and diagnosed with Turner syndrome were linked to mortality, hospital and prescription records. Children with any congenital anomaly and children without a congenital anomaly were included for comparison on morbidity. RESULTS Out of a population of 5.8 million livebirths 404 were diagnosed with Turner syndrome prenatally or in infancy and 95.5% survived to their fifth birthday. During the first year of life 72.3% (95% CI 59.5;81.6) of children with Turner syndrome were hospitalized, the median length of stay was 5.6 days (95% CI 3.5;7.7) and 18.7% (95% CI 13.9;23.9) underwent surgery. After the first year of life hospitalizations and length of stay decreased but more children underwent surgery (30.8% [95% CI 17.6;44.7]). In the first 5 years the percentage of children with Turner syndrome having a prescription for antibiotics was 12%-20% per year and increased with the age of child. CONCLUSIONS In the first year of life, the burden of disease was relatively high for children with Turner syndrome. The outlook is more positive beyond the first year, though overall morbidity still exceeded that of children without congenital anomalies.
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Affiliation(s)
- Ann-Louise Rud Andersen
- Department of Paediatrics and Adolescent Medicine, Lillebaelt Hospital University Hospital of Southern Denmark, Kolding, Denmark
| | - Stine Kjaer Urhoj
- Department of Paediatrics and Adolescent Medicine, Lillebaelt Hospital University Hospital of Southern Denmark, Kolding, Denmark
- Section of Epidemiology, Department of Public Health, University of Copenhagen, Copenhagen, Denmark
| | - Joachim Tan
- Population Health Research Institute, St George's University of London, London, UK
| | - Clara Cavero-Carbonell
- Rare Diseases Research Unit, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (UVEG-FISABIO), Valencia, Spain
| | - Miriam Gatt
- Malta Congenital Anomalies Register, Directorate for Health Information and Research, Tal-Pietà, Malta
| | - Mika Gissler
- Department of Knowledge Brokers, THL Finnish Institute for Health and Welfare, Helsinki, Finland
- Region Stockholm, Academic Primary Health Care Centre, Stockholm, Sweden
- Karolinska Institute, Department of Molecular Medicine and Surgery, Stockholm, Sweden
| | - Kari Klungsoyr
- Department of Global Public Health and Primary Care, University of Bergen, Bergen, Norway
| | - Babak Khoshnood
- INSERM-INRA, Université de Paris, Center of Research in Epidemiology and Statistics (CRESS), Paris, France
| | - Joan Morris
- Population Health Research Institute, St George's University of London, London, UK
| | - Amanda J Neville
- Emilia Romagna Registry of Birth Defects and Center for Clinical and Epidemiological Research, University of Ferrara and Azienda Ospedaliera Universitaria di Ferrara, Ferrara, Italy
| | - Anna Pierini
- Unit of Epidemiology of Rare Diseases and Congenital Anomalies, Institute of Clinical Physiology, National Research Council, Pisa, Italy
| | | | - Hermien E K de Walle
- University of Groningen, University Medical Center Groningen, Department of Genetics, Groningen, the Netherlands
| | - Diana Wellesley
- Clinical Genetics, University of Southampton and Wessex Clinical Genetics Service, Princess Anne Hospital, Southampton, UK
| | - Ester Garne
- Department of Paediatrics and Adolescent Medicine, Lillebaelt Hospital University Hospital of Southern Denmark, Kolding, Denmark
| | - Maria Loane
- Faculty of Life and Health Sciences, Ulster University, Northern Ireland, UK
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Essaddam L, Zitouni O, Kraoua L, Trabelsi M, Sassi H, Kmiha S, Charfi F, El Guiche D, Kebaïli R, Jaballah N, Rjeb M, Zouari N, El Aribi Y, Hizem S, Wannes S, Fkih Romdhane I, Sfar MT, Ben Hamouda H, Hadj Salem R, Khlayfia Z, Khmiss T, Monastiri K, Siala N, Chouchane S, Souaa H, Khochtali I, Mahjoub B, Sfar H, Ben Jemâa L, Abroug S, Boughamoura L, Kamoun I, Kamoun T, Mrad R, Ben Becher S. Turner Syndrome: results of the first Tunisian study group on Turner Syndrome (TuSGOT). J Pediatr Endocrinol Metab 2023:jpem-2022-0360. [PMID: 37084413 DOI: 10.1515/jpem-2022-0360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 04/04/2023] [Indexed: 04/23/2023]
Abstract
OBJECTIVES Early diagnosis in Turner syndrome is desirable to optimize growth and puberty and yet, it is often made late. Here, we aim to identify age at diagnosis, clinical features at presentation and potential strategies to improve the care of TS girls. METHODS Retrospective study, including patients from 14 care centers across Tunisia including neonatal and pediatric care units, adult endocrinology and genetics departments. RESULTS We identified 175 patients with TS, karyotype showing 45, xmonosomy in 83(47.4 %) with mosaicism in 37(20 %). Mean ± SD, median (range) age at diagnosis available in 173 patients was 13 ± 9.2,12 (birth-48) years. The diagnosis was antenatal in 4(2.3 %), from birth-2 years in 14 (8 %)with lymphoedema (8)and dysmorphic features (9),2-12 years in 53 (35.5 %) including 35 with short stature, 13-18 years in 43(28.8 %) with short stature(28) and delayed puberty(14) and 35(23.5 %) after 18 years, related to ovarian insufficiency (20) and short stature (11). The associated malformations were cardiac in 14 (12.8 %), renal in 22 (19.6 %). A total of 56 girls (32 %) had proven gonadal dysgenesis and 13 (7 %) had otological problems. Parental height was available in 71 girls (40 %) of whom 59 were below the lower end of parental target range (LTR) (83 %). CONCLUSIONS This first Tunisian multicenter study, the first African of its kind, reveals that more than half of Turner syndrome cases are diagnosed after the age of 12 years. Subsequently, national strategies for an earlier TS diagnosis are needed such as measuring and plotting parental heights as well as introducing a systematic height screening at 5 years in Tunisia with a view to carrying out a re-audit in five years' time.
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Affiliation(s)
- Leila Essaddam
- Department of Pediatrics-PUC, BéchirHamza Children's Hospital, Faculty of Medicine of Tunis and University of Tunis El Manar, Tunis, Tunisia
| | - Ons Zitouni
- Department of Pediatrics-PUC, BéchirHamza Children's Hospital, Faculty of Medicine of Tunis and University of Tunis El Manar, Tunis, Tunisia
| | - Lilia Kraoua
- Department of genetics, H.Charles Nicolle, Tunis, Tunisia
| | | | - Hella Sassi
- Department of genetics, H.Charles Nicolle, Tunis, Tunisia
| | - Sana Kmiha
- Department of Pediatrics, H.Hédi Chaker, Sfax, Tunisia
| | - Fatma Charfi
- Department of Pediatrics, H.Hédi Chaker, Sfax, Tunisia
| | - Dorra El Guiche
- Department of Endocrinology, B. Institut de nutrition, Tunis, Tunisia
| | | | | | - Maroua Rjeb
- Department of Pediatrics, H.Sahloul, Sousse, Tunisia
| | - Noura Zouari
- Department of Pediatrics, H.Sahloul, Sousse, Tunisia
| | | | - Syrine Hizem
- Department of genetics, H.M.Slim, La Marsa, Tunisia
| | | | | | | | | | | | - Zied Khlayfia
- Department of Pediatrics, H.M.Slim, La Marsa, Tunisia
| | | | | | - Nadia Siala
- Department of Pediatrics, H.M.Slim, La Marsa, Tunisia
| | | | | | | | | | - Habib Sfar
- Department of endocrinology, Mahdia, Tunisia
| | | | | | | | - Inès Kamoun
- Department of Endocrinology, B. Institut de nutrition, Tunis, Tunisia
| | | | - Ridha Mrad
- Department of genetics, H.Charles Nicolle, Tunis, Tunisia
| | - Saayda Ben Becher
- Department of Pediatrics-PUC, BéchirHamza Children's Hospital, Faculty of Medicine of Tunis and University of Tunis El Manar, Tunis, Tunisia
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Radkowska-Walkowicz M, Maciejewska-Mroczek E. 'Should I Buy Her a Doll'? Motherhood and Turner Syndrome in Poland. Med Anthropol 2023; 42:177-190. [PMID: 36705567 DOI: 10.1080/01459740.2023.2170797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Turner syndrome (TS) is a genetic condition that affects only girls and women, leading to health issues including infertility. Patients usually require recombinant growth hormone, and sex hormone therapy. Based on our anthropological research in Poland, we posit questions regarding the management of societal expectations by female parents regarding the femininity of their daughters, especially within the context of infertility. We query: Is it possible to understand TS and its consequences as not only being an obstacle to future plans, but also having emancipatory potential? To answer this question, we refer to the concept of hope and analyze the interpretative work of mothers of girls with TS.
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Mitsch C, Alexandrou E, Norris AW, Pinnaro CT. Hyperglycemia in Turner syndrome: Impact, mechanisms, and areas for future research. Front Endocrinol (Lausanne) 2023; 14:1116889. [PMID: 36875465 PMCID: PMC9974831 DOI: 10.3389/fendo.2023.1116889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/03/2023] [Indexed: 02/17/2023] Open
Abstract
Turner syndrome (TS) is a common chromosomal disorder resulting from complete or partial absence of the second sex chromosome. Hyperglycemia, ranging from impaired glucose tolerance (IGT) to diabetes mellitus (DM), is common in TS. DM in individuals with TS is associated with an 11-fold excess in mortality. The reasons for the high prevalence of hyperglycemia in TS are not well understood even though this aspect of TS was initially reported almost 60 years ago. Karyotype, as a proxy for X chromosome (Xchr) gene dosage, has been associated with DM risk in TS - however, no specific Xchr genes or loci have been implicated in the TS hyperglycemia phenotype. The molecular genetic study of TS-related phenotypes is hampered by inability to design analyses based on familial segregation, as TS is a non-heritable genetic disorder. Mechanistic studies are confounded by a lack of adequate TS animal models, small and heterogenous study populations, and the use of medications that alter carbohydrate metabolism in the management of TS. This review summarizes and assesses existing data related to the physiological and genetic mechanisms hypothesized to underlie hyperglycemia in TS, concluding that insulin deficiency is an early defect intrinsic to TS that results in hyperglycemia. Diagnostic criteria and therapeutic options for treatment of hyperglycemia in TS are presented, while emphasizing the pitfalls and complexities of studying glucose metabolism and diagnosing hyperglycemia in the TS population.
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Affiliation(s)
- Cameron Mitsch
- Department of Health and Human Physiology, The University of Iowa, Iowa City, IA, United States
| | - Eirene Alexandrou
- Stead Family Department of Pediatrics, University of Iowa, Iowa City, IA, United States
| | - Andrew W. Norris
- Stead Family Department of Pediatrics, University of Iowa, Iowa City, IA, United States
- Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA, United States
| | - Catherina T. Pinnaro
- Stead Family Department of Pediatrics, University of Iowa, Iowa City, IA, United States
- Fraternal Order of Eagles Diabetes Research Center, University of Iowa, Iowa City, IA, United States
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Malhotra R, Shukla R, Rastogi V, Khadgawat R. Isochromosome Xq and the risk of metabolic comorbidities in Turner syndrome. Diabetes Metab Syndr 2023; 17:102708. [PMID: 36696722 DOI: 10.1016/j.dsx.2023.102708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 12/22/2022] [Accepted: 01/10/2023] [Indexed: 01/15/2023]
Abstract
BACKGROUND AND AIM Subjects with Turner syndrome (TS) are at increased risk of metabolic disorders. The objective of this study is to evaluate the prevalence of metabolic abnormalities in TS and compare the metabolic profiles of subjects with respect to their X chromosome dosage. METHODS Sixty-four TS subjects with a mean age of 19 ± 4.9 years were included, and the prevalence of metabolic abnormalities was assessed. Out of these, 54 age and body mass index-matched TS subjects were divided into two groups based on karyotype: 45,X and 45,X/46,XX (group I; n = 33) and 46,X,i(X)(q10) and 45,X/46,X,i(X)(q10) (group II; n = 21). They were compared for blood pressure, fasting plasma glucose, homeostasis model assessment (HOMA) of insulin resistance (IR) and β cell function (HOMA-β), lipid profile, and percent total body fat mass (PTBFM) to assess if an extra copy of Xq contributes to a different metabolic profile. RESULTS The prevalence of impaired fasting glucose was 7.8%. 12% of subjects had higher systolic blood pressure (SBP), and 16% had higher diastolic blood pressure for age. 53% had a deranged lipid profile. Significant differences were noted in the two groups, with higher prevalence in group II vs. group I for SBP (p = 0.03), low-density lipoprotein cholesterol (LDL-c) (p = 0.03), and PTBFM (p = 0.02). When we applied a multiple regression analysis for these outcome variables while adjusting for potential confounders known to influence the cardiometabolic risk profile in TS, karyotype no longer remained a significant independent variable. CONCLUSION Extra copies of Xq do not contribute to an adverse metabolic risk profile.
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Affiliation(s)
- Rakhi Malhotra
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, India.
| | - Rashmi Shukla
- Division of Genetics, Department of Pediatrics, All India Institute of Medical Sciences, New Delhi, India
| | - Vandana Rastogi
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - Rajesh Khadgawat
- Department of Endocrinology and Metabolism, All India Institute of Medical Sciences, New Delhi, India
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Turner Syndrome Mosaicism 45,X/46,XY with Genital Ambiguity and Duchenne Muscular Dystrophy: Translational Approach of a Rare Italian Case. Int J Mol Sci 2022; 23:ijms232214408. [PMID: 36430887 PMCID: PMC9692496 DOI: 10.3390/ijms232214408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Turner syndrome (gonadal dysgenesis with short stature and sterility) is characterized by chromosomal karyotype 45,X in 50% of cases or by mosaicism (45,X/46,XX and 45,X/46,XY) in 30-40% or X structural defects (deletions, long arm isochromosome, ring chromosome). When mosaic Turner syndrome (TS) occurs with a Y chromosome, there may be ambiguous genitalia. Duchenne muscular dystrophy (DMD) is an inherited neuromuscular disease with an X-Linked recessive pattern of inheritance that predominantly affects males, while females are usually asymptomatic. DMD has also been observed in groups of females affected by TS, not homozygous for the mutation. Here, we report a case of an Indian neonate born with ambiguous genitalia diagnosed prenatally by ultrasound who had a karyotype of 45,X/46,XY and who also had Duchenne muscular dystrophy caused by a de novo mutation in the DMD gene. Physical examination was normal without the typical dysmorphic features of TS with the exception of the genitourinary system showing ambiguous genitalia. Gender was assigned as female. At the age of three years, she had increasing difficulty walking, running, jumping and climbing stairs, proximal upper and lower extremity muscle weakness and a positive Gowers' sign. In addition, the serum creatine kinase (CK) value was over 30X the upper limit of normal. This study shows that DMD can occur in females with TS having 45,X/46,XY mosaicism and that this coexistence should be considered in women affected by TS who start to develop potential typical symptoms such as motor or developmental delay.
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Surgical Techniques for the Repair of Webbed Neck: A Scoping Review. J Craniofac Surg 2022; 33:2644-2649. [DOI: 10.1097/scs.0000000000008821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 05/06/2022] [Indexed: 11/05/2022] Open
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Lee YC, Huang CY, Lin CH, Cheng BW, Huang SK, Yeh SN, Lee YJ, Ting WH. The effects of estrogen induction therapy on pubertal presentations in turner syndrome patients. Taiwan J Obstet Gynecol 2022; 61:788-793. [PMID: 36088045 DOI: 10.1016/j.tjog.2022.05.014] [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] [Accepted: 05/06/2022] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVE In this study, we investigated various pubertal presentations and progressions before and after estrogen induction therapy and the correlations with Turner syndrome karyotypes. MATERIALS AND METHODS We reviewed the medical records of patients with Turner syndrome diagnosed before the age of 18 years between 2000 and 2019. Sixty-six patients were enrolled and distributed into 45,X monosomy group, X chromosome structural abnormalities group and X mosaicism group. The pubertal presentations were classified into spontaneous puberty, arrested puberty and no spontaneous puberty. All patients' karyotypes, pubertal progressions and laboratory data were collected and analyzed. RESULTS The karyotypes were highly correlated with pubertal presentations. No spontaneous puberty was noticed in 58.3% 45,X monosomy patients, 50% patients with X chromosome structural abnormalities had arrested puberty, whereas 70% patients with X mosaicism had spontaneous puberty. Estrogen induction therapy in patients with no spontaneous puberty could induce puberty and the tempo of puberty may approximate to the spontaneous puberty group (median, 2.3 vs. 2.2 years, P = 0.95). In both interventional groups, the FSH level was distinguishable before treatment (median, 65.1 vs. 100.4 mIU/mL, P = 0.02). After long term estrogen therapy, the FSH could be suppressed to similar level in both interventional groups (median, 37.5 vs 34.5 mIU/mL, P = 0.84). Neither LH nor E2 level provided valuable information before and after treatment. CONCLUSION The karyotypes were highly correlated with pubertal presentations at Turner syndrome patients. The integrity of 2nd X chromosome plays an important role. Low dose estrogen could mimic the tempo of puberty even delay induction age at Taiwan. The FSH data could provide predictive information of pubertal induction for both interventional groups.
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Affiliation(s)
- Yi-Chen Lee
- Department of Pediatrics, Cathay General Hospital, Taipei, Taiwan; Department of Pediatric Endocrinology, MacKay Children's Hospital, Taipei, Taiwan; Department of Pediatrics, Taitung Mackay Memorial Hospital, Taitung, Taiwan.
| | - Chi-Yu Huang
- Department of Pediatric Endocrinology, MacKay Children's Hospital, Taipei, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan
| | - Chao-Hsu Lin
- Department of Pediatric Endocrinology, Hsinchu MacKay Memorial Hospital, Hsinchu City, Taiwan; Department of Biological Science and Technology, National Chiao-Tung University, Hsinchu City, Taiwan
| | - Bi-Wen Cheng
- Department of Pediatric Endocrinology, Hsinchu MacKay Memorial Hospital, Hsinchu City, Taiwan
| | - Shih-Kang Huang
- Department of Pediatric Endocrinology, MacKay Children's Hospital, Taipei, Taiwan; Department of Pediatrics, Taitung Mackay Memorial Hospital, Taitung, Taiwan; Department of Pediatrics, Tamsui MacKay Memorial Hospital, New Taipei City, Taiwan
| | - Shu-Nin Yeh
- Department of Pediatric Endocrinology, MacKay Children's Hospital, Taipei, Taiwan; Department of Pediatrics, Saint Paul's Hospital, Taoyuan City, Taiwan
| | - Yann-Jinn Lee
- Department of Pediatric Endocrinology, MacKay Children's Hospital, Taipei, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan; Department of Medical Research, Tamsui MacKay Memorial Hospital, New Taipei City, Taiwan; Institute of Biomedical Sciences, MacKay Medical College, New Taipei City, Taiwan; Department of Pediatrics, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wei-Hsin Ting
- Department of Pediatric Endocrinology, MacKay Children's Hospital, Taipei, Taiwan; Department of Medicine, MacKay Medical College, New Taipei City, Taiwan; MacKay Junior college of Medicine Nursing and Management, New Taipei City, Taiwan.
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Is Fetal Hydrops in Turner Syndrome a Risk Factor for the Development of Maternal Mirror Syndrome? J Clin Med 2022; 11:jcm11154588. [PMID: 35956203 PMCID: PMC9369874 DOI: 10.3390/jcm11154588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 07/10/2022] [Accepted: 07/30/2022] [Indexed: 11/17/2022] Open
Abstract
Mirror syndrome is a rare and serious maternal condition associated with immune and non-immune fetal hydrops after 16 weeks of gestational age. Subjacent conditions associated with fetal hydrops may carry different risks for Mirror syndrome. Fetuses with Turner syndrome are frequently found to be hydropic on ultrasound. We designed a retrospective multicenter study to evaluate the risk for Mirror syndrome among pregnancies complicated with Turner syndrome and fetal hydrops. Data were extracted from a questionnaire sent to specialists in maternal fetal medicine in Germany. Out of 758 cases, 138 fulfilled our inclusion criteria and were included in the analysis. Of the included 138, 66 presented with persisting hydrops at or after 16 weeks. The frequency of placental hydrops/placentomegaly was rather low (8.1%). Of note, no Mirror syndrome was observed in our study cohort. We propose that the risk of this pregnancy complication varies according to the subjacent cause of fetal hydrops. In Turner syndrome, the risk for Mirror syndrome is lower than that reported in the literature. Our observations are relevant for clinical management and parental counseling.
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13
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OUP accepted manuscript. Eur J Orthod 2022; 44:705-710. [DOI: 10.1093/ejo/cjac024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Abdullah W, Jawad al-Gburi A, Younis Al-Obaidi S. Cardiovascular health in turner syndrome: Manifestations, endocrine, and metabolic risk factors with a look at clinical practice. MUSTANSIRIYA MEDICAL JOURNAL 2022. [DOI: 10.4103/mj.mj_13_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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15
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Quigley CA, Fechner PY, Geffner ME, Eugster EA, Ross JL, Habiby RL, Ugrasbul F, Rubin K, Travers S, Antalis CJ, Patel HN, Davenport ML. Prevention of Growth Failure in Turner Syndrome: Long-Term Results of Early Growth Hormone Treatment in the "Toddler Turner" Cohort. Horm Res Paediatr 2021; 94:18-35. [PMID: 34111870 DOI: 10.1159/000513788] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Accepted: 12/15/2020] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION In the randomized "Toddler Turner" study, girls who received growth hormone (GH) starting at ages 9 months to 4 years (early-treated [ET] group) had marked catch-up growth and were 1.6 ± 0.6 SD taller than untreated (early-untreated [EUT]) control girls after 2 years. However, whether the early catch-up growth would result in greater near-adult height (NAH) was unknown. Therefore, this extension study examined the long-term effects of toddler-age GH treatment on height, pubertal development, and safety parameters. METHODS Toddler Turner study participants were invited to enroll in a 10-year observational extension study for annual assessments of growth, pubertal status, and safety during long-term GH treatment to NAH for both ET and EUT groups. RESULTS The ET group was taller than the EUT group at all time points from preschool to maturity and was significantly taller at the onset of puberty (p = 0.016), however, the difference was not significant at NAH. For the full cohort (ET + EUT combined, n = 50) mean (± SD) NAH was 151.2 ± 7.1 cm at age 15.0 ± 1.3 years. NAH standard deviation score (SDS) was within the normal range (>-2.0) for 76% of ET and 60% of EUT subjects (68% overall) and correlated strongly with height SDS at GH start (r = 0.78; p < 0.01), which in turn had a modest inverse correlation with age at GH start (i.e., height SDS declined with increasing age in untreated girls [r = -0.30; p = 0.016]). No new safety concerns arose. CONCLUSION Although the ET group was taller throughout, height SDS at NAH was not significantly different between groups due to catch-down growth of ET girls during lapses in GH treatment after the Toddler study and similar long-term GH exposure overall. Early initiation of GH by age 6 years, followed by uninterrupted treatment during childhood, can prevent ongoing growth failure and enable attainment of height within the normal range during childhood, adolescence, and adulthood.
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Affiliation(s)
| | - Patricia Y Fechner
- Division of Endocrinology, Seattle Children's Hospital, University of Seattle, Seattle, Washington, USA
| | - Mitchell E Geffner
- Center for Diabetes, Endocrinology and Metabolism, The Saban Research Institute, Children's Hospital of Los Angeles, Keck School of Medicine of University of Southern California, Los Angeles, California, USA
| | - Erica A Eugster
- Riley Hospital for Children at IU Health, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Judith L Ross
- Department of Pediatric Endocrinology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania, USA
| | - Reema L Habiby
- Division of Pediatric Endocrinology, Ann & Robert H. Lurie Children's Hospital of Chicago, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - Figen Ugrasbul
- Pediatric Endocrinology, Children's Mercy Hospital, Kansas City, Missouri, USA
| | - Karen Rubin
- Connecticut Children's Medical Center, Hartford, Connecticut, USA
| | - Sharon Travers
- Endocrinology, Children's Hospital Denver, Denver, Colorado, USA.,Department of Pediatrics, University of Colorado School of Medicine, Denver, Colorado, USA
| | - Caryl J Antalis
- Lilly Corporate Center, Eli Lilly and Company, Indianapolis, Indiana, USA
| | - Hiren N Patel
- Lilly Corporate Center, Eli Lilly and Company, Indianapolis, Indiana, USA
| | - Marsha L Davenport
- Pediatric Endocrinology, University of North Carolina, Chapel Hill, North Carolina, USA
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Mnif-Feki M, Safi W, Bougacha-Elleuch N, Abid G, Moalla M, Elleuch M, Ben Salah DH, Rekik N, Belguith N, Abdelhedi F, Kammoun T, Hachicha M, Charfi N, Mnif F, Kammoun H, Hadj Kacem H, Hadj-Kacem F, Abid M. Occurrence of Hypopituitarism in Tunisian Turner Syndrome patients: familial versus sporadic cases. Gynecol Endocrinol 2021; 37:848-852. [PMID: 34124982 DOI: 10.1080/09513590.2021.1939298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
OBJECTIVE To explore unusual association between Turner Syndrome (TS) and Hypopituitarism in a Tunisian cohort. METHODS We reported 6 patients with TS associated to Hypopituitarism, including three familial cases except the fourth sister who showed only a TS phenotype. Biochemical analysis, resonance magnetic imaging and cytogenetic analyses were performed. RESULTS The average age of our patients was 17.2 years (11-31 years). They were all referred for short stature and pubertal delay, except for the fourth sister who presented spontaneous puberty with the integrity of the pituitary axis and the presence of an X ring chromosome. Karyotype analysis showed monosomy in 3 cases and a mosaic TS in the 3 remaining cases, including one patient with abnormal X chromosome structure. Somatotropic and corticotropic deficiencies were confirmed in 2 sporadic cases while the gonadotropic and thyrotropic axes were spared. In contrast; familial cases were consistently affected by the integrity of the corticotropic axis. MRI showed pituitary hypoplasia in all familial cases and pituitary stalk interruption syndrome in only one sporadic case. No correlation was found between the chromosome formula and the anterior pituitary involvement. CONCLUSION Co-segregation of congenital Hypopituitarism with pituitary hypoplasia and X chromosome aberrations could imply a molecular anomaly of transcription factors responsible for the differentiation and development of pituitary cells such as PROP1, POUF1, Hesx1, Lhx3, Lhx4. The etiopathogenic link between X chromosome abnormalities and the occurrence of Hypopituitarism remains unclear; however, the progress of molecular biology may clarify the interrelation between transcription factors and sex chromosome segregation abnormalities.
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Affiliation(s)
- M Mnif-Feki
- Endocrinology-Diabetology Department, CHU Hédi Chaker, Sfax, Tunisia
| | - W Safi
- Endocrinology-Diabetology Department, CHU Hédi Chaker, Sfax, Tunisia
| | - N Bougacha-Elleuch
- Laboratory of Molecular and Functional Genetics, Faculty of Sciences of Sfax, Sfax University, TUNISIA
| | - G Abid
- Department of Medical Imaging, Auxerre Hospital Center, Auxerre, France
| | - M Moalla
- Laboratory of Molecular and Cellular Screening Processes, Center of Biotechnology of Sfax, Sfax, Tunisia
| | - M Elleuch
- Endocrinology-Diabetology Department, CHU Hédi Chaker, Sfax, Tunisia
| | - D H Ben Salah
- Endocrinology-Diabetology Department, CHU Hédi Chaker, Sfax, Tunisia
| | - N Rekik
- Endocrinology-Diabetology Department, CHU Hédi Chaker, Sfax, Tunisia
| | - N Belguith
- Genetic Department, Medicine CHU Hédi Chaker, Sfax, Tunisia
| | - F Abdelhedi
- Genetic Department, Medicine CHU Hédi Chaker, Sfax, Tunisia
| | - T Kammoun
- Pediatric Department, CHU Hédi Chaker, Sfax, Tunisia
| | - M Hachicha
- Pediatric Department, CHU Hédi Chaker, Sfax, Tunisia
| | - N Charfi
- Endocrinology-Diabetology Department, CHU Hédi Chaker, Sfax, Tunisia
| | - F Mnif
- Endocrinology-Diabetology Department, CHU Hédi Chaker, Sfax, Tunisia
| | - H Kammoun
- Genetic Department, Medicine CHU Hédi Chaker, Sfax, Tunisia
| | - H Hadj Kacem
- Department of Applied Biology, College of Sciences, University of Sharjah, Sharjah, United Arab Emirates
| | - F Hadj-Kacem
- Endocrinology-Diabetology Department, CHU Hédi Chaker, Sfax, Tunisia
| | - M Abid
- Endocrinology-Diabetology Department, CHU Hédi Chaker, Sfax, Tunisia
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de Azeredo Siqueira R, Carlos AS, d'Avila JC, Moreno AM, Alves EL, de Farias MLF, Mendonça LMC, Guimarães MM. Body composition, but not insulin resistance, influences postprandial lipemia in patients with Turner's syndrome. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2021; 64:758-763. [PMID: 34033286 PMCID: PMC10528628 DOI: 10.20945/2359-3997000000287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 06/12/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE The aim of the present study was to examine the influence of body composition and insulin resistance on the magnitude of postprandial lipemia in patients with Turner's syndrome receiving oral versus transdermal estrogen replacement. METHODS Twenty-five patients with Turner's syndrome receiving oral or transdermal estrogen replacement were evaluated for body mass index, waist-to-hip and waist-to-height ratios, fasting glycemia, insulin, body composition (dual-energy X-ray absorptiometry), and postprandial lipid metabolism. For statistical analysis, we used parametric tests to compare numeric variables between the two subgroups. RESULTS We observed no difference in postprandial triglyceride levels between patients receiving oral versus transdermal hormone replacement therapy. The postprandial triglycerides increment correlated positively with the percentage of total fat mass (p=0.02) and android fat mass (p=0.02) in the transdermal group. In the oral estrogen group, a positive correlation was observed between the increment in postprandial triglycerides and waist-to-hip (p=0.15) and waist-to-height (p=0.009) ratios. No association was observed between the estrogen replacement route and insulin resistance evaluated by the homeostatic model assessment-insulin resistance (HOMA-IR) index (p=0.19 and p=0.65 for the oral and transdermal groups, respectively). CONCLUSION We concluded that body composition and anthropometric characteristics possibly affect the extent of postprandial lipemia independently from the route of estrogen replacement.
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Affiliation(s)
- Rodrigo de Azeredo Siqueira
- Laboratório de Pesquisa Pré-Clínica, Faculdade de Medicina, Universidade de Nova Iguaçu, Nova Iguaçu, RJ, Brasil,
| | - Aluana Santana Carlos
- Laboratório de Pesquisa Pré-Clínica, Faculdade de Medicina, Universidade de Nova Iguaçu, Nova Iguaçu, RJ, Brasil
| | - Joana Costa d'Avila
- Laboratório de Pesquisa Pré-Clínica, Faculdade de Medicina, Universidade de Nova Iguaçu, Nova Iguaçu, RJ, Brasil,
| | - Adalgiza Mafra Moreno
- Laboratório de Pesquisa Pré-Clínica, Faculdade de Medicina, Universidade de Nova Iguaçu, Nova Iguaçu, RJ, Brasil
| | - Estela Luz Alves
- Departamento de Endocrinologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
| | | | - Laura Maria C Mendonça
- Departamento de Reumatologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brasil
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Graff A, Donadille B, Morel H, Villy MC, Bourcigaux N, Vatier C, Borgel A, Khodawardi A, Siffroi JP, Christin-Maitre S. Added value of buccal cell FISH analysis in the diagnosis and management of Turner syndrome. Hum Reprod 2021; 35:2391-2398. [PMID: 32810206 DOI: 10.1093/humrep/deaa197] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/05/2020] [Indexed: 12/17/2022] Open
Abstract
STUDY QUESTION Is there an added diagnosis value of buccal cell FISH analysis compared with blood lymphocyte chromosomal investigations in patients with Turner syndrome (TS)? SUMMARY ANSWER Buccal cell FISH analysis, a non-invasive technique, modified the chromosomal results obtained with the blood karyotype in 17 patients (12%) of our cohort. WHAT IS KNOWN ALREADY Few studies have evaluated buccal cell FISH analysis and compared them with blood karyotype in patients with TS. STUDY DESIGN, SIZE, DURATION A prospective, monocentric cohort study was conducted in a rare diseases centre (CMERC) between July 2017 and August 2019. PARTICIPANTS/MATERIALS, SETTING, METHODS In total, 142 adult patients with TS, and at least 5% 45,X cells in a previous blood karyotype, were recruited. All the patients' files were included in the CEMARA database. This national database has been declared to the French data protection agency (CNIL approval number 1187326). In compliance with French law, consent regarding non-opposition to collect and use the data was obtained from each patient. A FISH analysis on a buccal smear was performed. MAIN RESULTS AND THE ROLE OF CHANCE The percentage of 45,X cells was identical between the two tissues in only 32.4% of cases. The discrepancy was higher than 41% for 12% of the cohort. The percentage of 45,X cells was higher in blood in 53 (37.3%) patients, and higher in buccal cells in 43 (30.3%) of cases. In 17 (12%) cases, the blood karyotype had to be reconsidered in regard to the buccal cell analysis. LIMITATIONS, REASONS FOR CAUTION It would have been interesting to evaluate karyotypes in cells from other tissues such as cells from skin biopsy or from the urinary tract and even from blood vessels or gonads in case of surgery and to compare them with each patient's phenotype. However, most of the time, these tissues are not available. WIDER IMPLICATIONS OF THE FINDINGS Although blood lymphocyte karyotype remains the gold standard for the diagnosis of TS, buccal cell FISH analysis is an efficient tool to evaluate the global chromosomal constitution in these patients, thus allowing them to have better care and follow-up. For instance, identifying a Y chromosome can prevent the occurrence of a gonadoblastoma, as gonadectomy should be discussed. On the other hand, finding normal XX cells in a patient with a previous diagnosis of homogenous 45,X TS, may be psychologically helpful and relevant for gynaecological care. STUDY FUNDING/COMPETING INTEREST(S) No specific funding was sought for the study. The authors declare no competing interests. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- A Graff
- Sorbonne Université, Service d'Endocrinologie, diabétologie et médecine de la reproduction, Hôpital Saint-Antoine, AP-HP, Paris, France
| | - B Donadille
- Sorbonne Université, Service d'Endocrinologie, diabétologie et médecine de la reproduction, Hôpital Saint-Antoine, AP-HP, Paris, France
| | - H Morel
- Département de Génétique Médicale, Sorbonne Université, AP-HP, Hôpital d'Enfants Armand Trousseau, Paris, France
| | - M C Villy
- Département de Génétique Médicale, Sorbonne Université, AP-HP, Hôpital d'Enfants Armand Trousseau, Paris, France
| | - N Bourcigaux
- Sorbonne Université, Service d'Endocrinologie, diabétologie et médecine de la reproduction, Hôpital Saint-Antoine, AP-HP, Paris, France
| | - C Vatier
- Sorbonne Université, Service d'Endocrinologie, diabétologie et médecine de la reproduction, Hôpital Saint-Antoine, AP-HP, Paris, France
| | - A Borgel
- Département de Génétique Médicale, Sorbonne Université, AP-HP, Hôpital d'Enfants Armand Trousseau, Paris, France
| | - A Khodawardi
- Département de Génétique Médicale, Sorbonne Université, AP-HP, Hôpital d'Enfants Armand Trousseau, Paris, France
| | - J P Siffroi
- Département de Génétique Médicale, Sorbonne Université, AP-HP, Hôpital d'Enfants Armand Trousseau, Paris, France.,INSERM, Maladies génétiques d'expression pédiatrique UMR 933, Hôpital d'Enfants Armand Trousseau, Paris, France
| | - S Christin-Maitre
- Sorbonne Université, Service d'Endocrinologie, diabétologie et médecine de la reproduction, Hôpital Saint-Antoine, AP-HP, Paris, France.,INSERM, Maladies génétiques d'expression pédiatrique UMR 933, Hôpital d'Enfants Armand Trousseau, Paris, France
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The Amniotic Fluid Cell-Free Transcriptome Provides Novel Information about Fetal Development and Placental Cellular Dynamics. Int J Mol Sci 2021; 22:ijms22052612. [PMID: 33807645 PMCID: PMC7961801 DOI: 10.3390/ijms22052612] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 02/28/2021] [Accepted: 03/02/2021] [Indexed: 12/16/2022] Open
Abstract
The amniotic fluid (AF) is a complex biofluid that reflects fetal well-being during development. AF con be divided into two fractions, the supernatant and amniocytes. The supernatant contains cell-free components, including placenta-derived microparticles, protein, cell-free fetal DNA, and cell-free fetal RNA from the fetus. Cell-free mRNA (cfRNA) analysis holds a special position among high-throughput analyses, such as transcriptomics, proteomics, and metabolomics, owing to its ease of profiling. The AF cell-free transcriptome differs from the amniocyte transcriptome and alters with the progression of pregnancy and is often associated with the development of various organ systems including the fetal lung, skin, brain, pancreas, adrenal gland, gastrointestinal system, etc. The AF cell-free transcriptome is affected not only by normal physiologies, such as fetal sex, gestational age, and fetal maturity, but also by pathologic mechanisms such as maternal obesity, and genetic syndromes (Down, Edward, Turner, etc.), as well as pregnancy complications (preeclampsia, intrauterine growth restriction, preterm birth, etc.). cfRNA in the amniotic fluid originates from the placenta and fetal organs directly contacting the amniotic fluid as well as from the fetal plasma across the placenta. The AF transcriptome may reflect the fetal and placental development and therefore aid in the monitoring of normal and abnormal development.
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Khan S, Tafweez R, Haider A, Yaqoob M. Spectrum of external genital anomalies in disorders of Sex Development at Children Hospital & Institute of Child Health, Lahore, Pakistan. Pak J Med Sci 2020; 37:244-249. [PMID: 33437285 PMCID: PMC7794156 DOI: 10.12669/pjms.37.1.2991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Objective: To describe the mode of presentation and frequency of external genital anomalies in disorder of sex development (DSD) Methods: This cross-sectional study was conducted at Children Hospital & Institute of Child Health, Lahore from January to December, 2016 on Children with DSD above 10 years of age. A detailed history and physical examination were done. Positive findings were recorded on a predesigned proforma and analyzed by SPSS 21. Karyotyping on blood samples was done to determine their genetic sex. Results: Out of 83 DSD children, 67% (n=56) were assigned a female sex at birth of which 9% (n=5) had ambiguous genitalia. Male sex at birth was given to 33% (n=27) of which 96% (n=26) had genital ambiguity. Mode of presentation other than ambiguous genitalia were delayed puberty, amenorrhea, hirsuitism, gynaecomastia, cyclic hematuria etc. Clitoromegaly was the main finding in 62.5% (n=5) and micropenis in 45% (n=9). Karyotypic sex of 56 female sex of rearing was 46XX 80% (n=45), 45X0 13% (n=7), XXX 2% (n=1) and 46 XY in 5% (n=3). Karyotypic sex of 27 male sex of rearing was 46XY in 78% (n=21), 46XX in 15% (n=4) and 47XXY in 7% (n=2). Conclusion: Disorders of sex development presented with a wide spectrum of external genital anomalies ranging from clitoromegaly in females to micropenis and hypospadias in males. There was also an extreme diversity in mode of presentation of these cases including pubertal delay, amenorrhea in females and gender confusion disorders.
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Affiliation(s)
- Sarah Khan
- Dr. Sarah Khan, MBBS, M-Phil Anatomy Assistant Professor of Anatomy, Department of Anatomy, King Edward Medical University, Lahore, Pakistan
| | - Raafea Tafweez
- Dr. Raafea Tafweez, MBBS, M-Phil, FCPS, PhD. Professor of Anatomy, Department of Anatomy, King Edward Medical University, Lahore, Pakistan
| | - Areiba Haider
- Dr. Areiba Haider, MBBS, M-Phil. Anatomy, Assistant Professor of Anatomy, Department of Anatomy, King Edward Medical University, Lahore, Pakistan
| | - Muhammad Yaqoob
- Dr. Muhammad Yaqoob, MBBS, MCPS, PhD. Associate Professor of Genetics, Department of Genetics, The Children's Hospital & Institute of Child Health, Lahore, Pakistan
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Malliou-Becher MN, Vogt PH, Capp E, Frank-Herrmann P. Varianten der Geschlechtsentwicklung in der Frauenheilkunde. GYNAKOLOGISCHE ENDOKRINOLOGIE 2020. [DOI: 10.1007/s10304-020-00358-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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22
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Itonaga T, Koga E, Nishigaki S, Kawai M, Sakakibara H, Hasegawa Y. A retrospective multicenter study of bone mineral density in adolescents and adults with Turner syndrome in Japan. Endocr J 2020; 67:1023-1028. [PMID: 32554947 DOI: 10.1507/endocrj.ej20-0083] [Citation(s) in RCA: 8] [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] [Indexed: 11/23/2022] Open
Abstract
Osteoporosis is one of the clinical features of women with Turner syndrome (TS). The reasons for low bone mineral density (BMD) and increased bone fragility are multifactorial, including estrogen deficiency, X-chromosome abnormalities, and environmental factors. Few, large-scale studies on bone mineral density in either adolescents or adults with TS have been done in Japan. The goal of the present study was to investigate spinal BMD in women with TS, assess its relationship with clinical parameters, especially estrogen replacement therapy, and investigate its longitudinal changes. The spinal BMD and clinical data of 149 Japanese women with TS aged 15 to 49 years who were followed at the four participating hospitals were retrospectively analyzed. The BMD Z-scores of the women with TS ranged from -5.30 to +1.89. Women with TS aged 15-39 years had lower BMD than healthy Japanese women (p < 0.01) while women with spontaneous menstruation had a significantly higher BMD Z-score than those without spontaneous menstruation (-0.73 ± 1.11 vs. -1.67 ± 1.18, p < 0.01). In women without spontaneous menstruation, BMD Z-scores correlated with the duration of their estrogen therapy (r = 0.167, p < 0.01). Women aged 15-39 years with TS had low BMD, which was associated with primary amenorrhea and short estrogen replacement therapy duration.
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Affiliation(s)
- Tomoyo Itonaga
- Division of Endocrinology and Metabolism, Tokyo Metropolitan Children's Medical Center, Tokyo 183-8561, Japan
- Department of Pediatrics, Oita University Faculty of Medicine, Oita 879-5593, Japan
| | - Eri Koga
- Department of Gynecology, Yokohama City University Medical Center, Yokohama 232-0024, Japan
| | - Satsuki Nishigaki
- Department of Pediatrics, Osaka City University Graduate School of Medicine, Osaka 545-8586, Japan
| | - Masanobu Kawai
- Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Osaka 594-1101, Japan
- Department of Gastroenterology, Nutrition and Endocrinology, Osaka Women's and Children's Hospital, Osaka 594-1101, Japan
| | - Hideya Sakakibara
- Department of Gynecology, Yokohama City University Medical Center, Yokohama 232-0024, Japan
| | - Yukihiro Hasegawa
- Division of Endocrinology and Metabolism, Tokyo Metropolitan Children's Medical Center, Tokyo 183-8561, Japan
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Park EG, Kim EJ, Kim EJ, Kim HY, Kim SH, Yang A. Coexistence of Growth Hormone Deficiency and Pituitary Microadenoma in a Child with Unique Mosaic Turner Syndrome: A Case Report and Literature Review. Diagnostics (Basel) 2020; 10:diagnostics10100783. [PMID: 33020433 PMCID: PMC7600578 DOI: 10.3390/diagnostics10100783] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 09/30/2020] [Accepted: 10/02/2020] [Indexed: 01/15/2023] Open
Abstract
Turner syndrome (TS) is a genetic disorder with phenotypic heterogeneity caused by the monosomy or structural abnormalities of the X chromosome, and it has a prevalence of about 1/2500 females live birth. The variable clinical features of TS include short stature, gonadal failure, and skeletal dysplasia. The association with growth hormone (GH) deficiency or other hypopituitarism in TS is extremely rare, with only a few case reports published in the literature. Here, we report the first case of a patient with mosaic TS with complete GH deficiency and pituitary microadenoma, and we include the literature review. During the work-up of the patient for severe short stature, three GH provocation tests revealed peak GH levels of less than 5 ng/mL, which was compatible with complete GH deficiency. Sella magnetic resonance imaging showed an 8 mm non-enhancing pituitary adenoma with mild superior displacement of the optic chiasm. Karyotyping revealed the presence of ring chromosome X and monosomy X (46,X,r(X)/45,X/46,X,psu dic r(X;X)), which indicated a mosaic TS. It is important to consider not only chromosome analyses in females with short stature, but also the possibility of the coexistence of complete GH deficiency accompanying pituitary lesions in TS. In conclusion, the present study reports the first case of GH deficiency and pituitary adenoma in a patient with rare mosaic TS, which extends the genotype-phenotype spectrum for TS.
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Affiliation(s)
- Eu Gene Park
- Department of Pediatrics, Incheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 56, Dongsu-ro, Bupyeong-gu, Incheon 21431, Korea;
| | - Eun-Jung Kim
- Samsung Medical Center, Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (E.-J.K.); (E.-J.K.); (H.-Y.K.); (S.-H.K.)
| | - Eun-Jee Kim
- Samsung Medical Center, Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (E.-J.K.); (E.-J.K.); (H.-Y.K.); (S.-H.K.)
| | - Hyun-Young Kim
- Samsung Medical Center, Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (E.-J.K.); (E.-J.K.); (H.-Y.K.); (S.-H.K.)
| | - Sun-Hee Kim
- Samsung Medical Center, Department of Laboratory Medicine and Genetics, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 06351, Korea; (E.-J.K.); (E.-J.K.); (H.-Y.K.); (S.-H.K.)
| | - Aram Yang
- Department of Pediatrics, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, 29 Saemunan-ro, Jongno-gu, Seoul 03181, Korea
- Correspondence: ; Tel.: +82-2-2001-1980; Fax: +82-2-2001-1922
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Kostopoulou E, Bosdou JK, Anagnostis P, Stevenson JC, Goulis DG. Cardiovascular Complications in Patients with Turner's Syndrome. Curr Pharm Des 2020; 26:5650-5659. [PMID: 32473616 DOI: 10.2174/1381612826666200531152459] [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: 03/10/2020] [Accepted: 05/07/2020] [Indexed: 01/15/2023]
Abstract
Turner's or Turner syndrome (TS) is the most prevalent chromosomal abnormality in live female births. Patients with TS are predisposed to an increased risk of cardiovascular diseases (CVD), mainly due to the frequently observed congenital structural cardiovascular defects, such as valvular and aortic abnormalities (coarctation, dilatation, and dissection). The increased prevalence of cardiometabolic risk factors, such as arterial hypertension, insulin resistance, diabetes mellitus, dyslipidaemia, central obesity, and increased carotid intima-media thickness, also contribute to increased morbidity and mortality in TS patients. Menopausal hormone therapy (MHT) is the treatment of choice, combined with growth hormone (GH). Although MHT may, in general, ameliorate CVD risk factors, its effect on CVD mortality in TS has not yet been established. The exact effect of GH on these parameters has not been clarified. Specific considerations should be provided in TS cases during pregnancy, due to the higher risk of CVD complications, such as aortic dissection. Optimal cardiovascular monitoring, including physical examination, electrocardiogram, CVD risk factor assessment, and transthoracic echocardiography, is recommended. Moreover, the cardiac magnetic resonance from the age of 12 years is recommended due to the high risk of aortic aneurysm and other anatomical vascular complications.
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Affiliation(s)
- Eirini Kostopoulou
- Division of Paediatric Endocrinology and Diabetes, Department of Paediatrics, University of Patras School of Medicine, Patras, 26500, Greece
| | - Julia K Bosdou
- Unit for Human Reproduction, 1st Department of Obstetrics and Gynaecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Panagiotis Anagnostis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynaecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - John C Stevenson
- National Heart and Lung Institute, Imperial College London, Royal Brompton and Harefield NHS Foundation Trust, London SW3 6NP, United Kingdom
| | - Dimitrios G Goulis
- Unit of Reproductive Endocrinology, 1st Department of Obstetrics and Gynaecology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
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25
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Associated clinical abnormalities among patients with Turner syndrome. North Clin Istanb 2020; 7:226-230. [PMID: 32478293 PMCID: PMC7251269 DOI: 10.14744/nci.2019.84758] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Accepted: 08/01/2019] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE: The early diagnosis of Turner syndrome (TS) is often difficult because of the various clinical features. This study aimed to investigate clinical features and identify associated abnormalities in a group of patients with TS. METHODS: Retrospective data of presenting clinical features collected from the medical records of the 37 patients with TS. All patients were examined for associated clinical abnormalities. RESULTS: Mean age at diagnosis was 9.3±4.1 years. The main reason for referral was short stature and/or delayed puberty. All of the patients had at least one dysmorphic sign. Skeletal system abnormalities (57%) were the most common associated abnormality, which was followed by gastrointestinal system problems (40%). Cardiac defects occurred in 32%. Urinary system abnormalities occurred in 27%. Dermatological problems were detected in 32% of the patients. The pathology of the hearing was found in 19%. Autoimmune thyroid disease was detected in 24% of the patients, and celiac disease was detected in 5.4% of the patients. CONCLUSION: Phenotypic variability often leads to a delay in the diagnosis of TS. Early diagnosis can initiate effective management in patients with TS.
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Santos LO, Laranjeira R, Borborema MEBDA, Sotero-Caio CG, Duarte ADR, Araújo J, de Azevedo Silva J, Santos N. Vitamin D receptor (VDR) gene polymorphisms and expression profile influence upon the immunological imbalance in Turner syndrome. J Endocrinol Invest 2020; 43:505-513. [PMID: 31686401 DOI: 10.1007/s40618-019-01135-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 10/24/2019] [Indexed: 01/10/2023]
Abstract
PURPOSE Turner syndrome (TS) patients display considerable immune misregulation, and it is hypothesized that Vitamin D (VTD) activity may fluctuate according to Vitamin D receptor (VDR) polymorphisms and/or expression profile. To uncover a possible relationship between VDR genotype and clinical conditions in TS patients, we investigated two functional VDR variants (Cdx-2 and FokI) for allele and genotype frequencies, as well as expression profile in TS individuals versus healthy controls (HC). METHODS We performed a genetic association study including 100 TS patients and 116 HC. Genotyping for VDR Cdx-2 G > A (rs11568820) and FokI C > T (rs2228570) was performed using Taqman Genotyping Assays. VDR gene expression was also evaluated in 15 TS and 15 HC, using fluorogenic probes by qPCR. Statistical analyses were performed using nonparametric Mann-Whitney test, with a 5% significance level (p < 0.05) to uncover differences between groups. In addition, we investigated whether shifted VDR mRNA levels were associated with Cdx-2 and FokI variants in TS patients. RESULTS We detected a significantly higher frequency of T allele (p = 0.006) as well as T/T genotype (p = 0.01) for FokI in TS patients when compared to HC. When assessing VDR expression, we identified a downregulation in TS woman (- 2.84 FC) versus HC (p < 0.001). Furthermore, C/T (11.24 FC; p = 0.01) and T/T (9.20 FC; p = 0.01) FokI genotypes were upregulated when compared to C/C reference genotype. CONCLUSION TS patients show different distribution of FokI polymorphism. Downregulation of VDR gene expression may contribute to immunological imbalance in TS.
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Affiliation(s)
- L O Santos
- Department of Genetics, Federal University of Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco, 50740-600, Brazil
| | - R Laranjeira
- Department of Genetics, Federal University of Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco, 50740-600, Brazil
| | - M E B de A Borborema
- Department of Genetics, Federal University of Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco, 50740-600, Brazil
| | - C G Sotero-Caio
- Department of Genetics, Federal University of Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco, 50740-600, Brazil
- Department of Ecology, Faculty of Science, Charles University, Vinicna 7, Praha 2, 128 44, Prague, Czech Republic
| | - A de R Duarte
- Medical Genetic Service, Institute of Integral Medicine Professor Fernando Figueira, Rua dos Coelhos, 300, Boa Vista, Recife, Pernambuco, 50070-050, Brazil
| | - J Araújo
- Pediatric Endocrinology Service at Clinical Hospital, Federal University of Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco, 50740-600, Brazil
| | - J de Azevedo Silva
- Department of Genetics, Federal University of Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco, 50740-600, Brazil
- Laboratory of Immunopathology Keizo Asami, LIKA, Federal University of Pernambuco, Av. Prof. Moraes Rego, Cidade Universitária, Recife, Pernambuco, 52171-011, Brazil
| | - N Santos
- Department of Genetics, Federal University of Pernambuco, Av. da Engenharia, s/n, Cidade Universitária, Recife, Pernambuco, 50740-600, Brazil.
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Abstract
INTRODUCTION The incidence of Hashimoto's thyroiditis among patients who have Turner syndrome (TS) has increased, but Graves' disease (GD) in patients with TS is rarely reported. Here we report a rare case of TS with GD accompanied by hypogonadotropic hypogonadism. PATIENT CONCERNS We report the case of a 16-year-old girl who complained nervousness, fatigue, marasmus, heat intolerance, sweating, palpitation, and tremor lasting for more than a month. She had no medical history. DIAGNOSIS TS was diagnosed of the results of karyotyping demonstrated a gene karyotype of 46, X, i (X)(q10). GD was also diagnosed in this patient following the detection of thyroid function analysis. INTERVENTIONS Methimazole was administered after identification of GD. Due to the absence of secondary sex characteristics, the patient was given a conjugated estrogen preparation for 1 year, followed by the addition of estradiol cyproterone tablets for the onset of menstruation. OUTCOMES The hyperthyroidism symptoms of the patient had improved both clinically and laboratory tests after methimazole therapy. She was treated with estrogen and estradiol cyproterone, and the uterus and secondary sexual characteristics of the patient developed during 1 year follow-up. CONCLUSION TS generally presents as hypergonadotropic hypogonadism. However, hypogonadotropic hypogonadism cannot completely exclude TS. The diagnosis of this disease depends on chromosomal examination. The disease should be detected and treated as early as possible to improve life quality of the patient.
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Cleemann L, Holm K, Fallentin E, Møller N, Kristensen B, Skouby SO, Leth-Esbensen P, Jeppesen EM, Jensen AK, Gravholt CH. Effect of Dosage of 17ß-Estradiol on Uterine Growth in Turner Syndrome-A Randomized Controlled Clinical Pilot Trial. J Clin Endocrinol Metab 2020; 105:5587948. [PMID: 31613320 DOI: 10.1210/clinem/dgz061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 10/08/2019] [Indexed: 01/15/2023]
Abstract
CONTEXT Most Turner syndrome (TS) girls need exogenous estrogen treatment to induce puberty and normal uterine growth. After puberty, the optimal estrogen treatment protocol has not been determined. OBJECTIVE To compare 2 doses of oral 17ß-estradiol on uterine size. DESIGN A double-blind, 5-year randomized controlled clinical trial. SETTING Ambulatory care. PARTICIPANTS Twenty young TS women (19.2 ± 2.5 years, range 16.0-24.9) participated. Sixteen patients completed the study. No patients withdrew due to adverse effects. INTERVENTION The lower dose (LD) group took 2 mg 17ß-estradiol/d orally and placebo. The higher dose (HD) group took 4 mg 17ß-estradiol/d orally. MAIN OUTCOME MEASURE(S) Uterine volume evaluated by transabdominal ultrasound yearly. RESULTS Uterine size increased significantly more in the HD group compared with the LD group (P = 0.038), with a gain in uterine volume within the first 3 years of treatment of 19.6 mL (95% confidence interval [CI] = 4.0-19.0) in the HD group compared with 11.5 mL (95% CI = 11.2-27.9) in the LD group. The difference in 3-year gain was 8.1 mL (95% CI = 0.7-15.9). At the last visit, there were no significant differences in uterine volume between the groups. CONCLUSION HD oral 17ß-estradiol induces a steeper increase in uterine volume within the first years of treatment compared with the LD. However, the uterine growth potential seems to be the same in most young TS women making the duration of treatment equally significant as estrogen dose, although a few TS women did not experience sufficient uterine growth on 2 mg of estradiol. CLINICALTRIALS.GOV NCT00134745Abbreviations: BMI, body mass index; BSA, body surface area; DHEAS, dihydroepiandrosteronesulfate; HD, higher dose; HRT, hormone replacement therapy; LD, lower dose; TS, Turner syndrome; US, ultrasound.
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Affiliation(s)
- Line Cleemann
- Department of Pediatrics, Nordsjællands Hospital, Hillerød, Denmark
| | - Kirsten Holm
- Department of Pediatrics, Nordsjællands Hospital, Hillerød, Denmark
| | - Eva Fallentin
- Department of Radiology, Copenhagen University Hospital, Copenhagen, Denmark
| | - Nini Møller
- Department of Gynecology and Obstetrics, Nordsjællands Hospital, Hillerød, Denmark
| | - Bent Kristensen
- Department of Radiology, Nordsjællands Hospital, Hillerød, Denmark
| | - Sven O Skouby
- Department of Gynecology and Obstetrics, Herlev University Hospital, Herlev, Denmark
| | | | - Eva M Jeppesen
- Department of Pediatrics, Herlev University Hospital, Herlev, Denmark
| | - Andreas K Jensen
- Department of Clinical Research, Nordsjællands Hospital, Hillerød, Denmark
- Department of Public Health, University of Copenhagen
| | - Claus H Gravholt
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus C, Denmark
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus N, Denmark
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Li M, Zhao C, Xie S, Liu X, Zhao Q, Zhang Z, Gong G. Effects of hypogonadism on brain development during adolescence in girls with Turner syndrome. Hum Brain Mapp 2019; 40:4901-4911. [PMID: 31389646 DOI: 10.1002/hbm.24745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 07/18/2019] [Accepted: 07/21/2019] [Indexed: 01/19/2023] Open
Abstract
Gonadal steroids play an important role in brain development, particularly during puberty. Girls with Turner syndrome (TS), a genetic disorder characterized by the absence of all or part of the second X chromosome, mostly present a loss of ovarian function and estrogen deficiency, as well as neuroanatomical abnormalities. However, few studies have attempted to isolate the indirect effects of hormones from the direct genetic effects of X chromosome insufficiency. Brain structural (i.e., gray matter [GM] morphology and white matter [WM] connectivity) and functional phenotypes (i.e., resting-state functional measures) were investigated in 23 adolescent girls with TS using multimodal MRI to assess the role of hypogonadism in brain development in TS. Specifically, all girls with TS were divided into a hormonally subnormal group and an abnormal subgroup according to their serum follicle-stimulating hormone (FSH) levels, with the karyotypes approximately matched between the two groups. Statistical analyses revealed significant effects of the "group-by-age" interaction on GM volume around the left medial orbitofrontal cortex and WM diffusion parameters around the bilateral corticospinal tract, anterior thalamic radiation, left superior longitudinal fasciculus, and cingulum bundle, but no significant "group-by-age" or group differences were observed in resting-state functional measures. Based on these findings, estrogen deficiency has a nontrivial impact on the development of the brain structure during adolescence in girls with TS. Our present study provides novel insights into the mechanism by which hypogonadism influences brain development during adolescence in girls with TS, and highlights the important role of estrogen replacement therapy in treating TS.
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Affiliation(s)
- Min Li
- Department of Pediatrics, China-Japan Friendship Hospital, Beijing, China
| | - Chenxi Zhao
- State Key Laboratory of Cognitive Neuroscience and Learning &IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Sheng Xie
- Department of Radiology, China-Japan Friendship Hospital, Beijing, China
| | - Xiwei Liu
- Department of Radiology, China-Japan Friendship Hospital, Beijing, China
| | - Qiuling Zhao
- Department of Pediatrics, China-Japan Friendship Hospital, Beijing, China
| | - Zhixin Zhang
- Department of Pediatrics, China-Japan Friendship Hospital, Beijing, China
| | - Gaolang Gong
- State Key Laboratory of Cognitive Neuroscience and Learning &IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
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Son KA, Lee DY, Yoon BK, Choi D. The Efficacy of Long-Term Estrogen Replacement Therapy in Turner Syndrome Women with Premature Ovarian Insufficiency. J Pediatr Adolesc Gynecol 2019; 32:530-534. [PMID: 31145987 DOI: 10.1016/j.jpag.2019.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 04/29/2019] [Accepted: 05/17/2019] [Indexed: 11/27/2022]
Abstract
STUDY OBJECTIVE To evaluate the efficacy of long-term estrogen replacement therapy (ERT) in uterine development and bone mineral density (BMD) of Turner syndrome (TS) women with premature ovarian insufficiency (POI). DESIGN AND SETTING Retrospective study. PARTICIPANTS AND INTERVENTIONS Thirty-seven TS women grouped according to ovarian function status: TS women with POI (n = 32), aged 11-26 years, and those with intact ovarian function (IOF; n = 5), aged 13-17 years. TS women with POI underwent ERT. MAIN OUTCOME MEASURES Changes in uterine length, anterior-posterior (AP) fundal diameter of the uterus, and BMD were assessed. Statistical methods included Mann-Whitney U test and paired t test. RESULTS In TS women with POI, uterine length, AP fundal diameter, and BMD significantly increased after ERT (P < .001). TS women with POI were subdivided into classic (n = 11) and variant (n = 21) types, and there were no significant differences in uterine development and BMD according to types of chromosome. After receiving ERT, AP fundal diameter was significantly longer in classic TS women (P = .034) compared with those with variant type. CONCLUSION Long-term ERT increased uterine length (before: 4.4 cm; after: 7.2 cm) and AP fundal diameter (before: 0.9 cm; after: 2.4 cm), and improved BMD in TS women with POI. After ERT, in TS women with POI, uterine length, BMD at lumbar 2-4 and femoral neck were similar to those of TS women with IOF. Therefore, TS women with POI can catch up to those with IOF by receiving ERT.
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Affiliation(s)
- Kyung-A Son
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Dong-Yun Lee
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Byung-Koo Yoon
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - DooSeok Choi
- Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
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Fiot E, Zénaty D, Boizeau P, Haignere J, Dos Santos S, Léger J. X chromosome gene dosage as a determinant of congenital malformations and of age-related comorbidity risk in patients with Turner syndrome, from childhood to early adulthood. Eur J Endocrinol 2019; 180:397-406. [PMID: 30991358 DOI: 10.1530/eje-18-0878] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 04/16/2019] [Indexed: 12/28/2022]
Abstract
Objective Turner Syndrome is associated with several phenotypic conditions associated with a higher risk of subsequent comorbidity. We aimed to evaluate the prevalence of congenital malformations and the occurrence of age-related comorbid conditions and to determine whether the frequencies of congenital and acquired conditions depend on X chromosome gene dosage, as a function of karyotype subgroup. Design and methods This national retrospective observational cohort study includes 1501 patients. We evaluated the prevalence of congenital malformations and the cumulative incidence of subsequent specific comorbidities at five-year intervals, from the ages of 10 to 30 years, with stratification by karyotype subgroup: 45,X (n = 549), 45,X/46,isoXq (n = 280), 46,X,r(X)/46,XX (n = 106), 45,X/46,XX (n = 221), presence of Y (n = 87). Results Median age was 9.4 (3.7-13.7) years at first evaluation and 16.8 (11.2-21.4) years at last evaluation. Congenital heart (18.9%) malformations were more frequent in 45,X patients, and congenital renal (17.2%) malformations were more frequent in 45,X, 45,X/46,isoXq and 46,X,r(X)/46,XX patients than in those with 45,X/46,XX mosaicism or a Y chromosome (P < 0.0001). The cumulative incidence of subsequent acquired conditions, such as thyroid disease, hearing loss, overweight/obesity, dyslipidemia and, to a lesser extent, celiac disease, glucose intolerance/type 2 diabetes, hypertension and liver dysfunction increased with age, but less markedly for patients with mosaicism than for those with other karyotypes. Patients with a ring chromosome were more prone to metabolic disorders. Conclusion These data suggest that X gene chromosome dosage, particularly for Xp genes, contributes to the risk of developing comorbidities.
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Affiliation(s)
- Elodie Fiot
- Assistance Publique-Hôpitaux de Paris, Robert Debré University Hospital, Pediatric Endocrinology Diabetology Department, Reference Centre for Endocrine Growth and Development Diseases, Paris, France
| | - Delphine Zénaty
- Assistance Publique-Hôpitaux de Paris, Robert Debré University Hospital, Pediatric Endocrinology Diabetology Department, Reference Centre for Endocrine Growth and Development Diseases, Paris, France
| | - Priscilla Boizeau
- AP-HP, Hôpital Robert Debré University Hospital, Unit of Clinical Epidemiology, Paris, France
- Inserm, CIC-EC 1426, Paris, France
| | - Jérémie Haignere
- AP-HP, Hôpital Robert Debré University Hospital, Unit of Clinical Epidemiology, Paris, France
- Inserm, CIC-EC 1426, Paris, France
| | - Sophie Dos Santos
- Assistance Publique-Hôpitaux de Paris, Robert Debré University Hospital, Pediatric Endocrinology Diabetology Department, Reference Centre for Endocrine Growth and Development Diseases, Paris, France
| | - Juliane Léger
- Assistance Publique-Hôpitaux de Paris, Robert Debré University Hospital, Pediatric Endocrinology Diabetology Department, Reference Centre for Endocrine Growth and Development Diseases, Paris, France
- Université de Paris, Institut National de la Santé et de la Recherche Médicale (INSERM), UMR 1141, DHU Protect, F-75019 Paris, France
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Mujer con síndrome de Turner, anemia y colestasis. Semergen 2019; 45:203-204. [DOI: 10.1016/j.semerg.2018.06.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Revised: 05/30/2018] [Accepted: 06/08/2018] [Indexed: 11/18/2022]
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Siller AF, Shimony A, Shinawi M, Amarillo I, Dehner LP, Semenkovich K, Arbeláez AM. Inherited Deletion of 1q, Hyperparathyroidism and Signs of Y-chromosomal Influence in a Patient with Turner Syndrome. J Clin Res Pediatr Endocrinol 2019; 11:88-93. [PMID: 29739732 PMCID: PMC6398186 DOI: 10.4274/jcrpe.galenos.2018.2018.0005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
We report a detailed phenotypic, cytogenetic and molecular characterization of a patient prenatally diagnosed with Turner syndrome (TS). In addition to having typical TS clinical characteristics including webbed neck, high arched palate and coarctation of the aorta, the patient had features less frequently seen in TS. These included recurrent parathyroid adenomas, growth along the 75th-90th centiles on the TS height curve despite minimal treatment with growth hormone, behavioral problems and evidence of gonadal dysgenesis with testicular-like structures, such as seminiferous tubules lined by Sertoli cells and a contiguous nodule of Leydig cells. While fluorescence in situ hybridization (FISH) failed to detect Y-chromosome material in gonadal tissue or blood samples, chromosomal microarray analysis (CMA) confirmed X monosomy and a 4.69 Mb copy number loss on 1q31.2q31.3 (bp 192,715,814 to 197,401,180). This region contains the CDC73 gene which has been associated with hyperparathyroidism-jaw tumor syndrome, features of which include recurrent, functional parathyroid adenomas and behavioral issues. This case illustrates how atypical features in a TS patient, such as robust growth and recurrent parathyroid adenomas, may suggest an underlying molecular etiology that should be explored by additional genetic diagnostic modalities. It is therefore appropriate in such cases to conduct further genetic testing, such as CMA and FISH, to explore other diagnostic possibilities and possibly prevent further complications.
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Affiliation(s)
- Alejandro F. Siller
- Washington University Faculty of Medicine, Department of Pediatrics, Washington, USA
| | - Alex Shimony
- Washington University Faculty of Medicine, Department of Pediatrics, Washington, USA
| | - Marwan Shinawi
- Washington University Faculty of Medicine, Department of Pediatrics, Washington, USA
| | - Ina Amarillo
- Washington University Faculty of Medicine, Department of Pathology and Immunology, Washington, USA
| | - Louis P. Dehner
- Washington University Faculty of Medicine, Department of Pathology and Immunology, Washington, USA
| | - Katherine Semenkovich
- Washington University Faculty of Medicine, Department of Pediatrics, Washington, USA
| | - Ana María Arbeláez
- Washington University Faculty of Medicine, Department of Pediatrics, Washington, USA,* Address for Correspondence: Washington University Faculty of Medicine, Department of Pediatrics, Washington, USA Phone: +3144546051 E-mail:
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San Roman AK, Page DC. A strategic research alliance: Turner syndrome and sex differences. AMERICAN JOURNAL OF MEDICAL GENETICS PART C-SEMINARS IN MEDICAL GENETICS 2019; 181:59-67. [PMID: 30790449 DOI: 10.1002/ajmg.c.31677] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 01/06/2019] [Indexed: 12/11/2022]
Abstract
Sex chromosome constitution varies in the human population, both between the sexes (46,XX females and 46,XY males), and within the sexes (e.g., 45,X and 46,XX females, and 47,XXY and 46,XY males). Coincident with this genetic variation are numerous phenotypic differences between males and females, and individuals with sex chromosome aneuploidy. However, the molecular mechanisms by which sex chromosome constitution impacts phenotypes at the cellular, tissue, and organismal levels remain largely unexplored. Thus, emerges a fundamental question connecting the study of sex differences and sex chromosome aneuploidy syndromes: How does sex chromosome constitution influence phenotype? Here, we focus on Turner syndrome (TS), associated with the 45,X karyotype, and its synergies with the study of sex differences. We review findings from evolutionary studies of the sex chromosomes, which identified genes that are most likely to contribute to phenotypes as a result of variation in sex chromosome constitution. We then explore strategies for investigating the direct effects of the sex chromosomes, and the evidence for specific sex chromosome genes impacting phenotypes. In sum, we argue that integrating the study of TS with sex differences offers a mutually beneficial alliance to identify contributions of the sex chromosomes to human development, health, and disease.
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Affiliation(s)
| | - David C Page
- Whitehead Institute, Cambridge, Massachusetts.,Howard Hughes Medical Institute, Whitehead Institute, Cambridge, Massachusetts.,Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts
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Zhang R, Geng S, Qin Z, Tang Z, Liu C, Liu D, Song G, Li Y, Zhang S, Li W, Gao J, Han X, Li G. The genome-wide transcriptional consequences of the nullisomic-tetrasomic stocks for homoeologous group 7 in bread wheat. BMC Genomics 2019; 20:29. [PMID: 30630423 PMCID: PMC6327598 DOI: 10.1186/s12864-018-5421-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 12/27/2018] [Indexed: 11/16/2022] Open
Abstract
Background Hexaploid bread wheat (Triticum aestivum L) arose by two polyploidisation events from three diploid species with homoeologous genomes. Nullisomic-tetrasomic (nulli-tetra or NT) lines are aneuploid wheat plants lacking two and adding two of six homoeologous chromosomes. These plants can grow normally, but with significantly morphological variations because the adding two chromosomes or the remaining four chromosomes compensate for those absent. Despite these interesting phenomena, detailed molecular mechanisms underlying dosage deletion and compensation in these useful genetic materials have not been determined. Results By sequencing the transcriptomes of leaves in two-week-old seedlings, we showed that the profiles of differentially expressed genes between NT stocks for homoeologous group 7 and the parent hexaploid Chinese Spring (CS) occurred throughout the whole genome with a subgenome and chromosome preference. The deletion effect of nulli-chromosomes was compensated partly by the tetra-chromosomes via the dose level of expressed genes, according to the types of homoeologous genes. The functions of differentially regulated genes primarily focused on carbon metabolic process, photosynthesis process, hormone metabolism, and responding to stimulus, and etc., which might be related to the defective phenotypes that included reductions in plant height, flag leaf length, spikelet number, and kernels per spike. Conclusions The perturbation of the expression levels of transcriptional genes among the NT stocks for homoeologous group 7 demonstrated the gene dosage effect of the subgenome at the genome-wide level. The gene dosage deletion and compensation can be used as a model to elucidate the functions of the subgenomes in modern polyploid plants. Electronic supplementary material The online version of this article (10.1186/s12864-018-5421-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Rongzhi Zhang
- Key Laboratory of Wheat Biology & Genetic Improvement on North Yellow & Huai River Valley, Ministry of Agriculture, National Engineering Laboratory for Wheat & Maize, Institute of Crop Science, Shandong Academy of Agricultural Sciences (SAAS), #202, Road of Gongyebei, Jinan, 250100, China.
| | - Shuaifeng Geng
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zhengrui Qin
- Institute of Crop Science, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Zongxiang Tang
- Agronomy College, Sichuan Agricultural University, Wenjiang, Chengdu, 610054, China
| | - Cheng Liu
- Key Laboratory of Wheat Biology & Genetic Improvement on North Yellow & Huai River Valley, Ministry of Agriculture, National Engineering Laboratory for Wheat & Maize, Institute of Crop Science, Shandong Academy of Agricultural Sciences (SAAS), #202, Road of Gongyebei, Jinan, 250100, China
| | - Dongfeng Liu
- Key Laboratory of Plant Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China
| | - Guoqi Song
- Key Laboratory of Wheat Biology & Genetic Improvement on North Yellow & Huai River Valley, Ministry of Agriculture, National Engineering Laboratory for Wheat & Maize, Institute of Crop Science, Shandong Academy of Agricultural Sciences (SAAS), #202, Road of Gongyebei, Jinan, 250100, China
| | - Yulian Li
- Key Laboratory of Wheat Biology & Genetic Improvement on North Yellow & Huai River Valley, Ministry of Agriculture, National Engineering Laboratory for Wheat & Maize, Institute of Crop Science, Shandong Academy of Agricultural Sciences (SAAS), #202, Road of Gongyebei, Jinan, 250100, China
| | - Shujuan Zhang
- Key Laboratory of Wheat Biology & Genetic Improvement on North Yellow & Huai River Valley, Ministry of Agriculture, National Engineering Laboratory for Wheat & Maize, Institute of Crop Science, Shandong Academy of Agricultural Sciences (SAAS), #202, Road of Gongyebei, Jinan, 250100, China
| | - Wei Li
- Key Laboratory of Wheat Biology & Genetic Improvement on North Yellow & Huai River Valley, Ministry of Agriculture, National Engineering Laboratory for Wheat & Maize, Institute of Crop Science, Shandong Academy of Agricultural Sciences (SAAS), #202, Road of Gongyebei, Jinan, 250100, China
| | - Jie Gao
- Key Laboratory of Wheat Biology & Genetic Improvement on North Yellow & Huai River Valley, Ministry of Agriculture, National Engineering Laboratory for Wheat & Maize, Institute of Crop Science, Shandong Academy of Agricultural Sciences (SAAS), #202, Road of Gongyebei, Jinan, 250100, China
| | - Xiaodong Han
- Key Laboratory of Wheat Biology & Genetic Improvement on North Yellow & Huai River Valley, Ministry of Agriculture, National Engineering Laboratory for Wheat & Maize, Institute of Crop Science, Shandong Academy of Agricultural Sciences (SAAS), #202, Road of Gongyebei, Jinan, 250100, China
| | - Genying Li
- Key Laboratory of Wheat Biology & Genetic Improvement on North Yellow & Huai River Valley, Ministry of Agriculture, National Engineering Laboratory for Wheat & Maize, Institute of Crop Science, Shandong Academy of Agricultural Sciences (SAAS), #202, Road of Gongyebei, Jinan, 250100, China.
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Isochromosome Mosaic Turner Syndrome: A Case Report. J ASEAN Fed Endocr Soc 2019; 34:220-225. [PMID: 33442160 PMCID: PMC7784211 DOI: 10.15605/jafes.034.02.15] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2019] [Accepted: 08/13/2019] [Indexed: 11/20/2022] Open
Abstract
Turner syndrome (TS) with an isochromosome mosaic karyotype 45,X/46,X,i(X) (q10) is an unusual variant, with only an 8-9% prevalence among women with TS based on international studies and 15% of all TS in the Philippines. Clinical features are atypical and any case should be investigated to detect potential complications. A 20-year-old female came in due to amenorrhea and alopecia. Physical examination revealed short stature, cubitus valgus and Tanner Stage 1 pubic hair and breast development. Transrectal ultrasound revealed absent ovaries and infantile uterus. Hormonal evaluation revealed hypergonadotropic hypogonadism. Bone aging was that of a 13-yearold for females with non-fusion of epiphyseal plates. Cytogenetic study revealed 45,X [37]/46, X, i (X) (q10)[13]. This is consistent with a variant Isochromosome Mosaic Turner Syndrome (IMTS). She was screened for medical complications. Audiogram and two-dimensional echocardiography were unremarkable. She has dyslipidemia and was given a statin. She has subclinical hypothyroidism with positive test for anti-thyroglobulin antibody. Her intelligence quotient (IQ) was below average. She received conjugated estrogen and progesterone that patterned the hormonal changes in a normal menstrual cycle. On the third week of hormonal therapy, she developed breast mound and on the fourth week, she had her first menstrual period. Her alopecia spontaneously resolved. The case is a variant of Turner Syndrome requiring supportive, medical and psychological care.
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Mohamed SOO, Elkhidir IHE, Abuzied AIH, Noureddin AAMH, Ibrahim GAA, Mahmoud AAA. Prevalence of autoimmune thyroid diseases among the Turner Syndrome patients: meta-analysis of cross sectional studies. BMC Res Notes 2018; 11:842. [PMID: 30486859 PMCID: PMC6264051 DOI: 10.1186/s13104-018-3950-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 11/23/2018] [Indexed: 01/20/2023] Open
Abstract
Objective This meta-analysis was done to estimate the prevalence of autoimmune thyroid diseases (ATDs) in Turner Syndrome patients, and to determine the clinical status of thyroid autoimmune diseases that occur frequently in association with Turner Syndrome. Results A total of 18 studies were included in the meta-analysis. The pooled overall prevalence of autoimmune thyroid diseases in Turner Syndrome patients was 38.6% (95% CI 29.7–47.6%), with 12.7% (95% CI 9.30–16.1%) of them had clinical hypothyroidism and 2.6% (95% CI 1.5–3.8%) had hyperthyroidism. I-squared test had a high result of heterogeneity. In subgroup analyses, the prevalence of ATDs was higher in the European region than Asian region. Autoimmune thyroid diseases are commonly associated with Turner Syndrome. Early detection of thyroid diseases by optimal screening among children with Turner Syndrome is required to ensure effective management. Electronic supplementary material The online version of this article (10.1186/s13104-018-3950-0) contains supplementary material, which is available to authorized users.
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Calanchini M, Moolla A, Tomlinson JW, Cobbold JF, Grossman A, Fabbri A, Turner HE. Liver biochemical abnormalities in Turner syndrome: A comprehensive characterization of an adult population. Clin Endocrinol (Oxf) 2018; 89:667-676. [PMID: 29992593 DOI: 10.1111/cen.13811] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Revised: 06/13/2018] [Accepted: 07/09/2018] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Abnormal liver function tests (LFTs) are frequent in Turner syndrome (TS). The causes and clinical significance are unclear. AIMS To investigate the prevalence of elevated LFTs in adult TS; secondly, to analyse the associations between elevated LFTs, TS-karyotypes and TS-related conditions; and thirdly, to evaluate liver stiffness and histological assessment. METHODS A total of 125 TS women were retrospectively studied. Karyotypes, clinical and biochemical details and aortic measurements were recorded. Fibroscan and liver biopsy results were noted. RESULTS Elevated LFTs were found in 49.6%: gamma-glutamyltransferase (GGT) in 88.7%, ALK in 45.2%, ALT in 40.3% and AST in 29%. A FIB-4 index >1.3 was found in 11.8%. Women with isochromosome of the X long arm, iso[X](q), had a higher prevalence of elevated LFTs. A lower prevalence of abnormal GGT was found in patients with 45,X/46,XX, 45,X/47,XXX or 45,X/46,XX/47,XXX. Subjects with raised GGT were older, shorter and more likely to have higher triglyceride levels. There was no association with HRT duration after adjusting for age. Among patients with elevated aminotransferases, no differences were noted, except for higher HDL-cholesterol levels. The sinuses and ascending aorta diameter were greater in the elevated LFTs group. Fibroscan was suggestive of significant liver fibrosis in 38.1%. Among 11 biopsies, liver architectural changes were reported in 45.4%, including two with cirrhosis. CONCLUSIONS Elevated LFTs in TS are common and important to detect given the possible progression towards severe liver disease. An association between raised LFTs and karyotype iso[X]q was demonstrated. We have also shown a new association between abnormal LFTs and aortic dilatation.
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Affiliation(s)
- Matilde Calanchini
- Oxford Centre for Diabetes, Endocrinology & Metabolism, Churchill Hospital, University of Oxford, Oxford, UK
- Endocrinology & Metabolism Unit, CTO A. Alesini Hospital ASL Roma 2, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Ahmad Moolla
- Oxford Centre for Diabetes, Endocrinology & Metabolism, Churchill Hospital, University of Oxford, Oxford, UK
- Oxford Centre for Diabetes, Endocrinology & Metabolism, Churchill Hospital, National Institute for Health Research, Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Jeremy W Tomlinson
- Oxford Centre for Diabetes, Endocrinology & Metabolism, Churchill Hospital, National Institute for Health Research, Oxford Biomedical Research Centre, University of Oxford, Oxford, UK
| | - Jeremy F Cobbold
- Department of Gastroenterology and Hepatology, Oxford University Hospitals NHS Trust, Oxford, UK
| | - Ashley Grossman
- Oxford Centre for Diabetes, Endocrinology & Metabolism, Churchill Hospital, University of Oxford, Oxford, UK
| | - Andrea Fabbri
- Endocrinology & Metabolism Unit, CTO A. Alesini Hospital ASL Roma 2, Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Helen E Turner
- Oxford Centre for Diabetes, Endocrinology & Metabolism, Churchill Hospital, University of Oxford, Oxford, UK
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Zelinska N, Shevchenko I, Globa E. Nationwide Study of Turner Syndrome in Ukrainian Children: Prevalence, Genetic Variants and Phenotypic Features. J Clin Res Pediatr Endocrinol 2018; 10:256-263. [PMID: 29537378 PMCID: PMC6083464 DOI: 10.4274/jcrpe.5119] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 12/29/2017] [Indexed: 01/15/2023] Open
Abstract
Objective We aimed to investigate the prevalence of Turner syndrome (TS) in the Ukrainian population, the frequency of karyotype variants, the age of children at diagnosis, the degree of short stature and phenotypic features in TS girls. Methods A retrospective analysis was made in 538 TS girls aged 0.11-18.2 years within the time period of 2005-2015 with detailed examination of 150 patients. Results The prevalence of TS in Ukraine is 77.5 in 100.000 live female births. The average age at diagnosis is 9.33±4.93 years. The relative proportions of karyotypic abnormalities found were: 45,X (59.3%); mosaicism 45,X/46,XX (22.9%); and structural abnormalities in chromosome X (17.8%). The most frequently encountered findings were growth delay (98.8%), shortening of the 4th and 5th metacarpal bones (74.6%), abnormal nails (73.3%), broad chest (60.7%), short neck (58.6%), hypertelorism of nipples (51.4%), malformations of the cardiovascular (19.6%) and urinary systems (13.8%) and pathology related to vision (20.1%) and hearing (22.0%). Conclusion In the Ukrainian population, the highest proportion of patients with TS had a karyotype 45,X. TS was accompanied by a lower frequency of malformations of internal organs compared to other countries.
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Affiliation(s)
- Nataliya Zelinska
- Ukrainian Research and Practical Center of Endocrine Surgery, Transplantation of Endocrine Organs and Tissues of the Ministry of Health of Ukraine, Department of Pediatric Endocrinology, Kyiv, Ukraine
| | - Iryna Shevchenko
- Ukrainian Research and Practical Center of Endocrine Surgery, Transplantation of Endocrine Organs and Tissues of the Ministry of Health of Ukraine, Department of Pediatric Endocrinology, Kyiv, Ukraine
| | - Evgenia Globa
- Ukrainian Research and Practical Center of Endocrine Surgery, Transplantation of Endocrine Organs and Tissues of the Ministry of Health of Ukraine, Department of Pediatric Endocrinology, Kyiv, Ukraine
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Kelley JC, Gutmark-Little I, Backeljauw P, Bamba V. Increased Non-High-Density Lipoprotein Cholesterol in Children and Young Adults with Turner Syndrome Is Not Explained By BMI Alone. Horm Res Paediatr 2018; 88:208-214. [PMID: 28768282 DOI: 10.1159/000477761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 05/23/2017] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Turner syndrome (TS) is associated with an increased risk of cardiovascular disease. Non-high-density lipoprotein cholesterol (non-HDL-C) is a convenient measure of atherogenicity (normal concentration <120 mg/dL) but has not been investigated in TS. We aim to evaluate non-HDL-C patterns in a cohort of pediatric and young adult females with TS. METHODS A retrospective chart review was used to obtain demographics, body composition, genetic reports, and lipid profiles in females with TS. RESULTS Lipid profiles were assessed in 158 females (mean age 13.6 years). Mean non-HDL-C was 118.9 mg/dL (±32.0); the prevalence of high non-HDL-C (≥144 mg/dL) was 17.7% (n = 28). In TS females aged 8-17 years (n = 46), the prevalence of high non-HDL-C was 23.9% (95% CI 11.1-36.7; n = 11) between 2011 and 2012, compared to 9.2% (95% CI 5.6-14.1) in females of the same age in the general population reported in the National Health and Nutrition Examination Survey (NHANES) dataset (p < 0.005). Body mass index (BMI) accounted for only 6% of variance in non-HDL-C values (β coefficient = 1.31, p < 0.05). CONCLUSIONS Children and adolescents aged 8-17 years with TS appear to have a greater prevalence of adverse non-HDL-C levels compared to the general adolescent population. The prevalence of high non-HDL-C was not fully explained by BMI.
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Affiliation(s)
- Jennifer C Kelley
- Department of Pediatrics, Monroe Carell Jr. Children's Hospital at Vanderbilt, Nashville, Tennessee, USA
| | - Iris Gutmark-Little
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Philippe Backeljauw
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Vaneeta Bamba
- Division of Endocrinology, Department of Pediatrics, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Cazzolla AP, Lo Muzio L, Di Fede O, Lacarbonara V, Colaprico A, Testa NF, Giuseppe T, Zhurakivska K, Marzo G, Lacaita MG. Orthopedic-orthodontic treatment of the patient with Turner's syndrome: Review of the literature and case report. SPECIAL CARE IN DENTISTRY 2018; 38:239-248. [DOI: 10.1111/scd.12295] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
| | - Lorenzo Lo Muzio
- Department of Clinical and Experimental Medicine; University of Foggia; Foggia Italy
| | - Olga Di Fede
- Department of Surgical; Oncological and Stomatological Sciences; University of Palermo; Palermo Italy
| | | | - Andrea Colaprico
- Department of Odontostomatology and Surgery; University of Bari; Bari Italy
| | - Nunzio F. Testa
- Department of Clinical and Experimental Medicine; University of Foggia; Foggia Italy
| | - Troiano Giuseppe
- Department of Clinical and Experimental Medicine; University of Foggia; Foggia Italy
| | - Khrystyna Zhurakivska
- Department of Clinical and Experimental Medicine; University of Foggia; Foggia Italy
| | - Giuseppe Marzo
- Department of Life; Health and Environmental Sciences; Dental Clinic; University of L'Aquila; L'Aquila Italy
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Thyroid Autoimmunity in Girls with Turner Syndrome. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1022:71-76. [PMID: 28456931 DOI: 10.1007/5584_2017_42] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Turner syndrome is associated with increased incidence of autoimmune diseases, especially those of the thyroid gland. The aim of this study was to assess the prevalence of thyroid autoimmunity among pediatric patients with Turner syndrome. The study was retrospective and included 41 girls with Turner syndrome aged 6-18 years. Free thyroxine (FT4), thyroid stimulating hormone (TSH), anti-thyroid peroxidase (TPO-Ab) antibodies, anti-thyroglobulin (TG-Ab) antibodies, and karyotype were investigated. The correlation between karyotype and incidence of thyroid autoimmunity was also examined. Eleven patients (26.8%) were positive for TPO-Ab and/or TG-Ab. Three girls from that subgroup were euthyroid, 5 had subclinical hypothyroidism, and 3 were diagnosed with overt hypothyroidism. Out of these 11 patients affected by thyroid autoimmunity, 6 girls had mosaic karyotype with X-isochromosome (n = 4) or with deletions (n = 2), and 5 had the 45,X karyotype. The study findings confirmed a high incidence of thyroid autoimmunity in girls with Turner syndrome, but we failed to observe an association between the incidence of thyroid autoimmunity and karyotype. We conclude that it is important to monitor thyroid function in patients with Turner syndrome because they are prone to develop hypothyroidism.
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Zore T, Palafox M, Reue K. Sex differences in obesity, lipid metabolism, and inflammation-A role for the sex chromosomes? Mol Metab 2018; 15:35-44. [PMID: 29706320 PMCID: PMC6066740 DOI: 10.1016/j.molmet.2018.04.003] [Citation(s) in RCA: 134] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 03/26/2018] [Accepted: 04/06/2018] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Sex differences in obesity and related diseases are well established. Gonadal hormones are a major determinant of these sex differences. However, sex differences in body size and composition are evident prior to exposure to gonadal hormones, providing evidence for gonadal-independent contributions attributable to the XX or XY sex chromosome complement. Large-scale genetic studies have revealed male/female differences in the genetic architecture of adipose tissue amount and anatomical distribution. However, these studies have typically neglected the X and Y chromosomes. SCOPE OF THE REVIEW Here we discuss how the sex chromosome complement may influence obesity, lipid levels, and inflammation. Human sex chromosome anomalies such as Klinefelter syndrome (XXY), as well as mouse models with engineered alterations in sex chromosome complement, support an important role for sex chromosomes in obesity and metabolism. In particular, the Four Core Genotypes mouse model-consisting of XX mice with either ovaries or testes, and XY mice with either ovaries or testes-has revealed an effect of X chromosome dosage on adiposity, hyperlipidemia, and inflammation irrespective of male or female gonads. Mechanisms may include enhanced expression of genes that escape X chromosome inactivation. MAJOR CONCLUSIONS Although less well studied than effects of gonadal hormones, sex chromosomes exert independent and interactive effects on adiposity, lipid metabolism, and inflammation. In particular, the presence of two X chromosomes has been associated with increased adiposity and dyslipidemia in mouse models and in XXY men. The enhanced expression of genes that escape X chromosome inactivation may contribute, but more work is required.
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Affiliation(s)
- Temeka Zore
- Department of Human Genetics, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Maria Palafox
- Department of Human Genetics, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Karen Reue
- Department of Human Genetics, David Geffen School of Medicine at the University of California, Los Angeles, Los Angeles, CA 90095, USA.
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Abstract
Background Monosomy of the X chromosome is the most frequent genetic abnormality in human as it is present in approximately 2% of all conceptions, although 99% of these embryos are spontaneously miscarried. In postnatal life, clinical features of Turner syndrome may include typical dysmorphic stigmata, short stature, sexual infantilism, and renal, cardiac, skeletal, endocrine and metabolic abnormalities. Main text Turner syndrome is due to a partial or total loss of the second sexual chromosome, resulting in the development of highly variable clinical features. This phenotype may not merely be due to genomic imbalance from deleted genes but may also result from additive influences on associated genes within a given gene network, with an altered regulation of gene expression triggered by the absence of the second sex chromosome. Current studies in human and mouse models have demonstrated that this chromosomal abnormality leads to epigenetic changes, including differential DNA methylation in specific groups of downstream target genes in pathways associated with several clinical and metabolic features, mostly on autosomal chromosomes. In this article, we begin exploring the potential involvement of both genetic and epigenetic factors in the origin of X chromosome monosomy. We review the dispute between the meiotic and post-zygotic origins of 45,X monosomy, by mainly analyzing the findings from several studies that compare gene expression of the 45,X monosomy to their euploid and/or 47,XXX trisomic cell counterparts on peripheral blood mononuclear cells, amniotic fluid, human fibroblast cells, and induced pluripotent human cell lines. From these studies, a profile of epigenetic changes seems to emerge in response to chromosomal imbalance. An interesting finding of all these studies is that methylation-based and expression-based pathway analyses are complementary, rather than overlapping, and are correlated with the clinical picture displayed by TS subjects. Conclusions The clarification of these possible causal pathways may have future implications in increasing the life expectancy of these patients and may provide informative targets for early pharmaceutical intervention.
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Affiliation(s)
- Francisco Álvarez-Nava
- Biological Sciences School, Faculty of Biological Sciences, Central University of Ecuador, Quito, Ecuador
| | - Roberto Lanes
- Pediatric Endocrine Unit, Hospital de Clínicas Caracas, Caracas, Venezuela
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Cousminer DL, Mitchell JA, Chesi A, Roy SM, Kalkwarf HJ, Lappe JM, Gilsanz V, Oberfield SE, Shepherd JA, Kelly A, McCormack SE, Voight BF, Zemel BS, Grant SFA. Genetically Determined Later Puberty Impacts Lowered Bone Mineral Density in Childhood and Adulthood. J Bone Miner Res 2018; 33:430-436. [PMID: 29068475 PMCID: PMC5839967 DOI: 10.1002/jbmr.3320] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 10/09/2017] [Accepted: 10/10/2017] [Indexed: 11/11/2022]
Abstract
Later puberty associates with lower areal bone mineral density (aBMD), and both are risk factors for osteoporosis. However, the association between puberty timing-associated genetic variants and aBMD during development, and the causal relationship between puberty timing and aBMD, remain uncharacterized. We constructed sex-specific polygenic risk scores (GRS) consisting of 333 genetic variants associated with later puberty in European-descent children in the Bone Mineral Density in Childhood Study (BMDCS), consisting of a longitudinal cohort with up to seven assessments (n = 933) and a cross-sectional cohort (n = 486). These GRS were tested for associations with age- and sex-specific aBMD Z-scores at the lumbar spine (LS), femoral neck (FN), total hip, and distal radius, accounting for clinical covariates using sex-stratified linear mixed models. The causal relationship between puberty timing and aBMD was tested in the BMDCS and in publicly available adult data (GEFOS consortium) using two-sample Mendelian randomization (MR). The puberty-delaying GRS was associated with later puberty and lower LS-aBMD in the BMDCS in both sexes (combined beta ± SE = -0.078 ± 0.024; p = 0.0010). In the MR framework, the puberty-delaying genetic instrument also supported a causal association with lower LS-aBMD and FN-aBMD in adults of both sexes. Our results suggest that pubertal timing is causal for diminished aBMD in a skeletal site- and sex-specific manner that tracks throughout life, potentially impacting later risk for osteoporosis, which should be tested in future studies. © 2017 American Society for Bone and Mineral Research.
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Affiliation(s)
- Diana L. Cousminer
- Division of Human Genetics, Children’s Hospital of Philadelphia, Philadelphia
- Department of Genetics, University of Pennsylvania, Philadelphia
| | - Jonathan A. Mitchell
- Division of Gastroenterology, Hepatology and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Alessandra Chesi
- Division of Human Genetics, Children’s Hospital of Philadelphia, Philadelphia
| | - Sani M. Roy
- Division of Endocrinology and Diabetes, Cook Children’s Medical Center, Fort Worth, Texas
| | - Heidi J. Kalkwarf
- Division of Gastroenterology, Hepatology and Nutrition, Cincinnati Children’s Hospital Medical Center, Cincinnati
| | - Joan M. Lappe
- Division of Endocrinology, Department of Medicine, Creighton University, Omaha
| | - Vicente Gilsanz
- Department of Radiology, Children’s Hospital Los Angeles, Los Angeles
| | - Sharon E. Oberfield
- Division of Pediatric Endocrinology, Diabetes, and Metabolism, Department of Pediatrics, Columbia University Medical Center, New York
| | - John A. Shepherd
- Department of Radiology, University of California San Francisco, San Francisco
| | - Andrea Kelly
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
- Division of Endocrinology and Diabetes, The Children’s Hospital of Philadelphia, Philadelphia
| | - Shana E. McCormack
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
- Division of Endocrinology and Diabetes, The Children’s Hospital of Philadelphia, Philadelphia
| | - Benjamin F. Voight
- Department of Genetics, University of Pennsylvania, Philadelphia
- Department of Systems Pharmacology and Translation Therapeutics, University of Pennsylvania, Philadelphia
- Institute of Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia
| | - Babette S. Zemel
- Division of Gastroenterology, Hepatology and Nutrition, The Children’s Hospital of Philadelphia, Philadelphia
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
| | - Struan F. A. Grant
- Division of Human Genetics, Children’s Hospital of Philadelphia, Philadelphia
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia
- Division of Endocrinology and Diabetes, The Children’s Hospital of Philadelphia, Philadelphia
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Abstract
Background Epidemiological and clinical studies have largely demonstrated major differences in the prevalence of metabolic disorders in males and females, but the biological cause of these dissimilarities remain to be elucidated. Mammals are characterized by a major change in reproductive strategies and it is conceivable that these changes subjected females to a significant evolutionary pressure that perfected the coupling between energy metabolism and reproduction. Scope of review This review will address the plausibility that female liver functions diverged significantly from males given the role of liver in the control of metabolism. Indeed, it is well known that the liver is sexually dimorphic, and this might be relevant to explain the lower susceptibility to hepatic diseases and liver-derived metabolic disturbances (such as the cardiovascular diseases) characteristic of females during their fertile period. Furthermore, estrogens and the hepatic ERα play a significant role in liver sexual-specific functions and in the control of metabolic functions. Conclusions A better grasp of the role of male and female sex steroids in the liver of the two sexes may therefore represent an important element to conceive novel treatments aimed at preventing metabolic diseases particularly in ageing women or limiting undesired side effect in the treatment of gender dysphoria. Liver is a target for estrogens. Liver metabolism is regulated by estrogens. Metabolism and reproduction are reciprocally regulated functions. Liver sexual dimorphism is associated to female reproductive functions. Liver is sexually differentiated neonatally.
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Carvalho AB, Lemos-Marini SHV, Guerra-Junior G, Maciel-Guerra AT. Clinical and cytogenetic features of 516 patients with suspected Turner syndrome - a single-center experience. J Pediatr Endocrinol Metab 2018; 31:167-173. [PMID: 29303780 DOI: 10.1515/jpem-2017-0273] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 11/16/2017] [Indexed: 01/15/2023]
Abstract
BACKGROUND Clinical suspicion of Turner syndrome (TS) may be challenging. Short stature and absent puberty are not mandatory and the dysmorphic picture is widely variable. The aim of the study was to describe a representative sample of patients with suspected TS in a single center and to verify which set of features may help discriminate those with TS. METHODS This was a retrospective study of patients with suspected TS evaluated between 1989 and 2012 with the same clinical and cytogenetic protocols. Data regarding reason for referral, age and height at diagnosis, birth data, pubertal features and dysmorphisms were analyzed. RESULTS TS was diagnosed in 36% of 516 patients; structural chromosome anomalies predominated (42%). Short stature was the main reason for referral of patients with and without TS. The mean age of patients at first visit, with TS or without TS was similar (11.89 and 11.35 years, respectively), however, infants and adolescents predominated in the TS group. The mean full-term birth weight was lower in patients with TS as well as height at diagnosis, but normal height z-score was found in 17% of patients. Spontaneous puberty occurred in 30% of TS patients aged 13 years or more, but most had pubertal delay. Residual lymphedema, webbed neck, cubitus valgus, hyperconvex nails, shield chest, abnormal nipples, pigmented nevi, short fourth metacarpal and shorter height were the best discriminators for girls with TS. CONCLUSIONS Though short stature, pubertal delay and typical stigmata should prompt investigation of TS, lack of one of these features should not exclude this hypothesis. Dysmorphisms other than those considered "typical" should be sought on physical examination.
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Affiliation(s)
- Annelise B Carvalho
- Department of Pediatrics, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Sofia H V Lemos-Marini
- Department of Pediatrics, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Gil Guerra-Junior
- Department of Pediatrics, Faculty of Medical Sciences, State University of Campinas, São Paulo, Brazil
| | - Andréa T Maciel-Guerra
- Department of Medical Genetics, Faculty of Medical Sciences, State University of Campinas, Rua Tessália Vieira de Camargo, 126, 13083-887 Campinas, São Paulo, Brazil
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Noordman I, Duijnhouwer A, Kapusta L, Kempers M, Roeleveld N, Schokking M, Smeets D, Freriks K, Timmers H, van Alfen-van der Velden J. Phenotype in girls and women with Turner syndrome: Association between dysmorphic features, karyotype and cardio-aortic malformations. Eur J Med Genet 2018; 61:301-306. [PMID: 29339108 DOI: 10.1016/j.ejmg.2018.01.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 12/23/2017] [Accepted: 01/01/2018] [Indexed: 01/15/2023]
Abstract
INTRODUCTION Turner syndrome (TS) is a genetic disorder characterized by the (partial) absence or a structural aberration of the second sex chromosome and is associated with a variety of phenotypes with specific physical features and cardio-aortic malformations. The objective of this study was to gain a better insight into the differences in dysmorphic features between girls and women with TS and to explore the association between these features, karyotype and cardio-aortic malformations. METHODS This prospective study investigated 14 dysmorphic features of TS girls and women using a checklist. Three major phenotypic patterns were recognized (severe phenotype, lymphatic phenotype and skeletal phenotype). Patient data including karyotype and cardio-aortic malformations (bicuspid aortic valve (BAV) and aortic coarctation (COA)) were collected. Associations between the prevalence of dysmorphic features, karyotype and cardio-aortic malformations were analysed using chi2-test and odds ratios. RESULTS A total of 202 patients (84 girls and 118 women) were analysed prospectively. Differences in prevalence of dysmorphic features were found between girls and women. A strong association was found between monosomy 45,X and the phenotypic patterns. Furthermore, an association was found between COA and lymphatic phenotype, but no association was found between karyotype and cardio-aortic malformations. CONCLUSION This study uncovered a difference in dysmorphic features between girls and women. Monosomy 45,X is associated with a more severe phenotype, lymphatic phenotype and skeletal phenotype. All patients with TS should be screened for cardio-aortic malformations, because in contrast to previous reports, karyotype and cardio-aortic malformations showed no significant association.
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Affiliation(s)
- Iris Noordman
- Department of Paediatrics, Amalia Children's Hospital, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Anthonie Duijnhouwer
- Department of Cardiology, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Livia Kapusta
- Department of Paediatrics, Amalia Children's Hospital, Radboud University Medical Centre, Nijmegen, The Netherlands; Pediatric Cardiology Unit, Tel-Aviv Sourasky Medical Centre, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Marlies Kempers
- Department of Human Genetics, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Nel Roeleveld
- Department for Health Evidence, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Michiel Schokking
- Department of Paediatrics, Amalia Children's Hospital, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Dominique Smeets
- Department of Human Genetics, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Kim Freriks
- Department of Internal Medicine, Tjongerschans Hospital, Heerenveen, The Netherlands
| | - Henri Timmers
- Department of Internal Medicine, Section of Endocrinology, Radboud University Medical Centre, Nijmegen, The Netherlands
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Cameron-Pimblett A, La Rosa C, King TFJ, Davies MC, Conway GS. The Turner syndrome life course project: Karyotype-phenotype analyses across the lifespan. Clin Endocrinol (Oxf) 2017; 87:532-538. [PMID: 28617979 DOI: 10.1111/cen.13394] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 05/18/2017] [Accepted: 06/08/2017] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Turner syndrome (TS) is associated with a variety of morbidities affecting nearly every body system, some of which increase in prevalence in adult life. The severity of clinical features in TS is roughly in parallel with the magnitude of the deficit of X-chromosome material. The aim of this study was to extend the established karyotype-phenotype relationships using data from a large adult cohort. MATERIALS AND METHODS Karyotypes were available in 656 women with TS. 611 of whom could be classified into five major groups within the cohort: 45,X; 45,X mosaicism (45,X/46,XX); isochromosome X (isochromosome Xq); mosaicism 45,X/46,XY and ring X. Continuous variables such as blood pressure and biochemical markers from clinic data were binarised allocating those in the upper quartile to represent at-risk individuals. With the exception of bone mineral density T-score for which the lower quartile was allocated as at risk. For comorbidities, initiation of formal treatment was recorded. RESULTS 45,X/46,XX had considerably lower frequency of comorbidities compared to 45,X. The isochromosome group experienced similar outcomes to 45,X. Novel associations were found between the XY mosaic karyotype group and a decreased prevalence of thyroid disease and severe hearing loss. A previously unreported increased incidence of metabolic syndrome was noted within the ring chromosome subgroup. CONCLUSIONS Karyotype may play an important factor against stratifying risk of comorbidity in TS and should be taken into consideration when managing adults with TS. Further investigations of the isochromosome (Xq) and ring groups are necessary to further clarify their associations with comorbidities.
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Affiliation(s)
| | - Clementina La Rosa
- Reproductive Medicine Unit, University College London Hospital, London, UK
| | - Thomas F J King
- Reproductive Medicine Unit, University College London Hospital, London, UK
| | - Melanie C Davies
- Reproductive Medicine Unit, University College London Hospital, London, UK
| | - Gerard S Conway
- Reproductive Medicine Unit, University College London Hospital, London, UK
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50
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Abstract
Men and women exhibit significant differences in obesity, cardiovascular disease, and diabetes. To provide better diagnosis and treatment for both sexes, it is important to identify factors that underlie the observed sex differences. Traditionally, sex differences have been attributed to the differential effects of male and female gonadal secretions (commonly referred to as sex hormones), which substantially influence many aspects of metabolism and related diseases. Less appreciated as a contributor to sex differences are the fundamental genetic differences between males and females, which are ultimately determined by the presence of an XX or XY sex chromosome complement. Here, we review the mechanisms by which gonadal hormones and sex chromosome complement each contribute to lipid metabolism and associated diseases, and the current approaches that are used to study them. We focus particularly on genetic approaches including genome-wide association studies in humans and mice, -omics and systems genetics approaches, and unique experimental mouse models that allow distinction between gonadal and sex chromosome effects.
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Affiliation(s)
- Jenny C Link
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, California 90095;
| | - Karen Reue
- Department of Human Genetics, David Geffen School of Medicine, University of California, Los Angeles, California 90095;
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, California 90095
- Molecular Biology Institute, University of California, Los Angeles, California 90095
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