scholarly journals Early infantile form of galactosialidosis in a female baby with a prenatal diagnosis of fetal ascites: First case in Brazil

1998 ◽  
Vol 21 (4) ◽  
pp. 443-446
Author(s):  
Cláudia Maria Carvalho dos Santos ◽  
Patrícia Santana Correia ◽  
Antônio Abílio Santa Rosa ◽  
Elde Vaniazzi ◽  
Janice Carneiro Coelho ◽  
...  
Keyword(s):  
Prenatal Diagnosis ◽  
Storage Disease ◽  
Screening Program ◽  
Lysosomal Storage ◽  
Infantile Form ◽  
Inborn Errors ◽  
First Case ◽  
Female Baby ◽  
Layer Chromatography ◽  
Urinary Oligosaccharides

We present the first case of an early infantile form of galactosialidosis among Brazilians. This very rare and severe lysosomal storage disease has only a dozen patients clearly diagnosed worldwide. Clinical, pathological and biochemical features were consistent with previously published findings. We detected the disorder in a 7-month-old female baby with prenatal diagnosis of ascites. Evolution of the storage disease was monitored through routine thin-layer chromatography (TLC) for urinary oligosaccharides as part of a screening program for inborn errors of metabolism (IEM) in high-risk children, carried out in Rio de Janeiro.

scholarly journals Neonatal Urine Screening Program in the Province of Quebec: Technological Upgrade from Thin Layer Chromatography to Tandem Mass Spectrometry

2021 ◽  
Vol 7 (1) ◽  
pp. 18
Author(s):  
Christiane Auray-Blais ◽  
Michel Boutin ◽  
Pamela Lavoie ◽  
Bruno Maranda
Keyword(s):  
Mass Spectrometry ◽  
Thin Layer ◽  
Thin Layer Chromatography ◽  
Clinical Symptoms ◽  
Screening Program ◽  
Compliance Rate ◽  
Inborn Errors ◽  
Organic Acidurias ◽  
Urine Screening ◽  
Layer Chromatography

The Quebec Neonatal Urine Screening Program was initiated in 1971 with overall screening inception of newborns in 1973. Forty-seven years later, over 3.5 million babies have been screened for up to 25 inborn errors of metabolism divided into two groups: (1) urea cycle disorders and organic acidurias; and (2) disorders of amino acid metabolism and transport. The main goal of this preventive genetic medicine program is the detection of treatable diseases before the onset of clinical symptoms. Urine specimens from 21-day-old babies are collected and dried on filter paper by parents at home. The participation is voluntary with a high compliance rate over the years (~90%). Specimens are analyzed by thin layer chromatography (TLC). The main objective of this evaluative research project was to assess the feasibility of a technological upgrade towards mass spectrometry. A 2.85-min flow injection method was devised, normal values established, and abnormal profiles confirmed using second-tier tests. The validated assays are sensitive, specific, and suitable for populational screening, as well as for high-risk screening laboratories. Triple H syndrome, which would not be detected in newborns by blood screening at two days of age was found to be positive in the urine of an affected patient.

8 Sixteen years of experience of biochemical analysis and prenatal diagnosis of lysosomal storage disease in Iran

2007 ◽  
Vol 92 (4) ◽  
pp. 13
Author(s):  
Mohammad Hasan Karimi-Nejad ◽  
Fariba Afroozan ◽  
Bita Bozrgmehr ◽  
Navid Almadani ◽  
Valeh Hadavi ◽  
...  
Keyword(s):  
Prenatal Diagnosis ◽  
Lysosomal Storage Disease ◽  
Biochemical Analysis ◽  
Storage Disease ◽  
Years Of Experience ◽  
Lysosomal Storage

scholarly journals Lysosomal Storage Disease in an Emu (Dromaius novaehollandiae)

1996 ◽  
Vol 33 (3) ◽  
pp. 365-366 ◽  
Author(s):  
D. Y. Rim ◽  
D. Y. Cho ◽  
H. W. Taylor
Keyword(s):  
Spinal Cord ◽  
Lysosomal Storage Disease ◽  
Storage Disease ◽  
Histochemical Staining ◽  
Lysosomal Storage ◽  
Electron Microscopic ◽  
First Case ◽  
Dromaius Novaehollandiae ◽  
Microscopic Studies ◽  
The Brain

Lysosomal storage disease involving the brain, spinal cord, liver, and spleen was discovered in a 6-month-old male emu ( Dromaius novaehollandiae). The diagnosis was based on light and electron microscopic studies and histochemical staining characteristics. This is the first case of lysosomal storage disease reported in a ratite.

scholarly journals Galactosialidosis in a newborn with a novel mutation in the CTSA gene presenting with transient hyperparathyroidism

2017 ◽  
Vol 20 (2) ◽  
pp. 95-97
Author(s):  
E Okulu ◽  
G Tunc ◽  
T Eminoglu ◽  
O Erdeve ◽  
B Atasay ◽  
...  
Keyword(s):  
Lysosomal Storage Disease ◽  
Autosomal Recessive ◽  
Storage Disease ◽  
Age Of Onset ◽  
Novel Mutation ◽  
Clinical Manifestations ◽  
Inherited Disease ◽  
Lysosomal Storage ◽  
Loss Of Function ◽  
Infantile Form

Abstract Galactosialidosis is a lysosomal storage disease caused by deficiency of protective protein that is encoded by the cathepsin A (CTSA) gene localized on chromosome 20q13.1. Mutations of this gene are the cause of galactosialidosis that result in loss of function of protective protein. Galactosialidosis is an autosomal recessive inherited disease and has been divided into three subtypes based on age of onset and the severity of clinical manifestations. We report an early infantile form of galactosialidosis in a newborn with a novel mutation on the CTSA gene.

Is there a role for scintigraphic imaging of bone manifestations in Gaucher disease?

2008 ◽  
Vol 47 (06) ◽  
pp. 239-247 ◽  
Author(s):  
S. Kohlfürst ◽  
H. J. Gallowitsch ◽  
E. Kresnik ◽  
P. Lind ◽  
A. B. Mehta ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Lysosomal Storage Disease ◽  
Gaucher Disease ◽  
Storage Disease ◽  
Lysosomal Storage ◽  
Scintigraphic Imaging ◽  
Imaging Methods ◽  
X Ray ◽  
Deficient Activity

SummaryGaucher disease is the most prevalent inherited, lysosomal storage disease and is caused by deficient activity of the enzyme β-glucocerebrosidase. Bone and bone marrow alterations are frequent in the most prevalent non-neuronopathic form of Gaucher disease. Imaging of bone manifestations in Gaucher disease is performed by a variety of imaging methods, conventional X-ray and MRI as the most frequently and most important ones. However, different modalities of scintigraphic imaging have also been used. This article gives an overview on scintigraphic imaging with respect to bone manifestations in Gaucher disease discussing the advantages and limitations of scintigraphic imaging in comparison to other imaging methods.

Two patients from Turkey with a novel variant in the GM2A gene and review of the literature

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Aslı İnci ◽  
Filiz Başak Cengiz Ergin ◽  
Gürsel Biberoğlu ◽  
İlyas Okur ◽  
Fatih Süheyl Ezgü ◽  
...  
Keyword(s):  
Sandhoff Disease ◽  
Pathogenic Variant ◽  
Protein Deficiency ◽  
Gm2 Gangliosidosis ◽  
Infantile Form ◽  
Rare Form ◽  
Inborn Errors ◽  
Activator Protein ◽  
Gm2 Activator ◽  
Gm2 Activator Protein

Abstract Objectives GM2 gangliosidosis is a rare form of inborn errors of metabolism including Tay-Sachs disease, Sandhoff disease, and GM2 activator deficiency. GM2 activator protein deficiency is an ultra-rare form of GM2 gangliosidosis. To date, 16 cases of GM2 activator protein deficiency have been reported in the literature, and among them, 11 cases were the infantile form of the disease. Here we report the first two patients from Turkey with the infantile form of the disease with a novel likely pathogenic variant. Case presentation A boy of eight months old presented to the metabolic department with very mild neurological deterioration, although he had achieved early developmental milestones at the appropriate time. The parents also had a daughter who had lost skills progressively before one year of age. The boy was evaluated and bilateral cherry-red spots were found with no abnormality in either metabolic screening including β-hexosaminidase or cranial magnetic resonance imaging. A novel homozygous likely pathogenic variant in GM2A was detected in a next-generation sequence panel revealing GM2 activator protein deficiency. His sister was investigated after he was diagnosed with GM2 activator deficiency and it was found that she had the same variant as her brother. Conclusions This case report emphasizes that in the event of normal β-hexosaminidase activity, GM2 activator protein deficiency could be underdiagnosed, and further molecular analysis should be performed. To the best of our knowledge, this boy is one of the youngest patient diagnosed with very mild symptoms. With this novel pathogenic variant, these patients have expanded the mutation spectrum of GM2 activator protein deficiency.

scholarly journals The Importance of Early Detection of Genetic Diseases

2021 ◽  
Vol 4 (2) ◽  
pp. 133-141
Author(s):  
Suma Elcy Varghese ◽  
Rana Hassan Mohammad El Otol ◽  
Fatma Sultan Al Olama ◽  
Salah Ahmad Mohamed Elbadawi
Keyword(s):  
Early Detection ◽  
Newborn Screening ◽  
Health Authority ◽  
Genetic Screening ◽  
Screening Program ◽  
Genetic Disorders ◽  
Genetic Diseases ◽  
Inborn Errors ◽  
The Usa ◽  
Premarital Screening

<b><i>Background:</i></b> Early detection of diseases in newborn may help in early intervention and treatment, which may either cure the disease or improve the outcome of the patient. Dubai’s Health Authority has a newborn screening program which includes screening for metabolic and genetic conditions, for hearing and vision, and for congenital heart disease. <b><i>Objectives:</i></b> The objectives of this study are to assess the outcome of the newborn genetic screening program, to correlate the association between the outcome of the program and demographic variables and to find out the percentage of the number of infants who were confirmed to have the genetic disease (by confirmatory tests) out of the total infants who had positive screening test results. <b><i>Methods:</i></b> During the period of the study from January 2018 to December 2018, a total of 7,027 newborns were tested in Dubai Health Authority facilities by the newborn genetic screening program (known as the “Step One Screening”). Blood samples were collected by heel prick on a collection paper. All samples were transported to PerkinElmer Genomics in the USA where the tests were done. The genetic disorders identified were correlated with different variables like gender and nationality. The data were entered in an excel sheet and analyzed by using SPSS software. All infants aged 0–3 months who have done newborn genetic screening at Dubai Health Authority facilities between January and December 2018 were included. <b><i>Results:</i></b> The incidence of screened disorders was 1:7,027 for congenital adrenal hyperplasia, 1:1,757 for congenital hypothyroidism, 1:1,757 for inborn errors of metabolism, 1:2,342 for biotinidase deficiency, 1:1,171 for hemoglobinopathies, 1:12 for hemoglobinopathy traits, and 1:10 for different genetic mutations of G6PD deficiency. <b><i>Conclusions:</i></b> There is a high incidence of different genetic diseases detected by newborn screening. These results justify unifying the program in the UAE and preventive programs like premarital screening and genetic counseling.

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