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Articles tagged with Autosomal recessive

  • Dejerine-Sottas syndrome panel

    Dejerine-Sottas syndrome (DSS) is a hereditary neuropathy is a severe phenotype of Charcot-Marie-Tooth disease (CMT). It is characterized by early-onset (first 2 years of life), delayed motor development, slow nerve conduction velocity and severe loss of myelinated fibers in nerve biopsy.

  • Spinocerebellar ataxias (SCA) comprehesive panel

    Spinocerebellar ataxias (SCA) are a group of hereditary neurological disorders characterized by slowly progressive ataxia accompanied by cerebellar degeneration. Ataxia is gait imbalance associated with limb incoordination and loss of fine and gross motor control. The most common types of SCA are…

  • SMN-negative spinal muscular atrophy panel

    Spinal muscular atrophies (SMAs) are hereditary degenerative disorders of lower motor neurons associated with progressive muscle weakness and atrophy. The onset of muscle weakness ranges from the prenatal period to adolescence or young adulthood, with infantile-onset SMA being the most common…

  • Obesity gene panel

    Obesity is an increasingly common complex condition caused by several genetic and non-genetic risk factors and it is correlated with increased risks for diabetes type 2, heart diseases and cancers. It is a neuroendocrine condition caused by combined effects of both environmental and genetic risk…

  • Maple syrup urine disease gene panel

    Maple syrup urine disease (MSUD) is an inherited metabolic disorder characterized by the distinctive sweet odor of the affected infants’ urine. MSUD is caused by the deficiency of the branched-chain alpha-keto acid dehydrogenase complex (BCKAD), causing abnormal accumulation of the branched-chain…

  • Niemann-Pick type C disease often overlooked: fast & efficient screening programs

    Discover how CENTOGENE’s fast and efficient screening program for NP-C can enable diagnosis, prediction and therapy monitoring for your patients.

  • Albinism

    Albinism is an inherited genetic condition that reduces the amount of melanin pigment formed in the eyes, skin, and/or hair. The most common form of albinism is oculocutaneous albinism (OCA), a group of autosomal recessive disorders caused by a reduction of melanin biosynthesis in the melanocytes…

  • Charcot–Marie–Tooth (CMT) neuropathy gene panel

    Charcot-Marie-Tooth (CMT) disease is a group of hereditary neuropathies, and represents one of the most common neurological conditions, characterized by a chronic motor and sensory polyneuropathy.

  • Lysosomal storage diseases (LSD) panel

    Lysosomal storage diseases (LSD) are a heterogeneous group of inherited disorders characterized by the accumulation of partially digested or undigested macromolecules in cells, due to the absence of different lysosomal enzymes, which ultimately results in cellular dysfunction and clinical…

  • Dyskeratosis congenita with a novel variant in the DKC1 gene

    Dyskeratosis congenita (DC) is a rare genetic disorder of bone marrow failure inherited in an X-linked, autosomal dominant or autosomal recessive pattern. It has a wide array of clinical features and patients may be cared for by many medical sub specialties.

  • Ehlers-Danlos syndrome and related disorders gene panel

    Ehlers-Danlos syndromes (EDS) are a group of inherited connective tissue disorders caused by abnormalities in the structure, production, and/or processing of collagen. The signs and symptoms of EDS are highly variable, ranging from mild to life-threatening complications.

  • Non-syndromic sensorineural deafness

    Hearing loss, also known as deafness, is the inability of affected person to hear. Hearing loss can be caused by a number of different factors, including genetics, environment, birth complications, trauma, certain medications or toxins, and many others. Hereditary hearing loss (“congenital…

  • Nemaline myopathy

    Nemaline myopathy (NEM, NM) is one of the most common congenital myopathies characterized by hypotonia, weakness, and absent deep tendon reflexes. Muscle weakness is usually most severe in the face, the neck flexors, and the proximal limb muscles. Nemaline myopathies (NEM) include at least six forms…

  • Cataract

    Cataracts are a clouding of the lens in the eye, defined as opacification of the normally transparent crystalline lens. It is very common in older people and mostly related to aging. Cataracts can occur in one or both eyes affecting vision, i.e. clouding in the lens results in blurred vision.…

  • Bardet Biedl

    Bardet-Biedl Syndrome (BBS) is a rare, autosomal-recessive ciliopathy characterized by retinal dystrophy, obesity, renal abnormalities, genital abnormalities, postaxial polydactyly, and learning difficulties. To date, mutations in more than 20 different genes have been described as being responsible…

  • Alport syndrome

    Alport syndrome (ATS) is a rare disease caused by genetic mutations in one of the type IV collagen genes that encode connective tissue proteins localized within basement membranes of the kidneys, ears, and eyes. Thus, the disease is characterized by renal, cochlear, and ocular involvement.

  • Recommendations for the detection and diagnosis of Niemann-Pick disease type C: An update.

    Niemann-Pick disease type C (NP-C) is a neurovisceral disorder that may be more prevalent than earlier estimates. Diagnosis of NP-C is often delayed; a key aim for clinical practice is to reduce this delay. Recently, substantial progress has been made in the field of NP-C screening and diagnosis,…

  • Fanconi anemia

    Fanconi Anemia (FA) is a rare inherited chromosome breakage syndrome characterized by physical abnormalities, bone marrow failure, and an increased risk of development of various malignancies. FA is the most common genetic cause of aplastic anemia and is one of the most common genetic causes of…

  • Pancreatitis

    There are a variety of disorders of the pancreas including acute pancreatitis, chronic pancreatitis, hereditary pancreatitis, and pancreatic cancer. Signs and symptoms of pancreatitis may vary, depending on the disease. Hereditary pancreatic diseases are inflamatory diseases of pancreas, most often…

  • Glucosylsphingosine is a reliable response biomarker

    Perusing our research quest for selective and specific biomarkers we have designed and performed a research study involving potential biomarkers for Gaucher disease and we have identified a glucosylsphingosine as a reliable responsible biomarker for this disease.

  • Sandhoff disease

    Sandhoff disease is a rare inherited lysosomal storage disorder caused by an accumulation of the specific glycosphinogolipid, GM2 ganglioside1, particularly in neurons. This accumulation results in a progressive neurodegenerative disorder clinically indistinguishable from Tay-Sachs disease. Because…

  • Glycogen storage disease II or Pompe disease

    Pompe disease, also known as glycogen storage disease type 2 (GSD II), is an inherited disorder caused by the buildup of a complex sugar called glycogen in the body's cells. The accumulation of glycogen in certain organs and tissues, especially muscles, impairs their ability to function normally.

  • Krabbe disease

    Krabbe disease, also known as globoid cell leukodystrophy, is a rare autosomal recessive lysosomal disorder affecting the white matter of the central and peripheral nervous systems.

  • Expanding the clinical and genetic spectra of NKX6-2-related disorder

    Hypomyelinating leukodystrophies (HLDs) affect the white matter of the central nervous system, and manifest as neurological disorders. They are genetically heterogeneous. Very recently, biallelic variants in NKX6-2 have been suggested to cause a novel form of autosomal recessive HLD.

  • B-positive SCID panel

    Severe combined immunodeficiency (SCID) is a group of rare monogenic primary immunodeficiency disorders characterized by a block in T lymphocyte differentiation

  • B-negative SCID panel

    Severe combined immunodeficiency (SCID) is a group of rare monogenic primary immunodeficiency disorders characterized by a block in T lymphocyte differentiation.

  • Meckel syndrome panel

    Meckel syndrome (MES), also known as Meckel-Gruber syndrome, belongs to the group of ciliopathies, caused by dysfunction of primary cilia during embryogenesis.

  • Cone-rod and cone dystrophy panel

    Cone-rod dystrophies (CORD) are inherited retinal degenerations characterized by cone degeneration precedes the rod degeneration. Prevalence of CORD is estimated to be 1 in 40,000 1, 2. The early manifestations of CORD include decreased visual acuity, color vision defects, and photophobia, with…

  • Mucopolysaccharidosis type ICH (MPS1-H)

    MPS I has been divided into three broad groups based on severity of symptoms: Hurler, Hurler-Scheie, and Scheie syndromes. Hurler and Scheie syndromes represent phenotypes at the severe and mild ends of the MPS I clinical spectrum, respectively; and the Hurler-Scheie syndrome is intermediate in…

  • Hereditary spastic paraplegia type 5: natural history, biomarkers and a randomized controlled trial

    Spastic paraplegia type 5 (SPG5) is a rare subtype of hereditary spastic paraplegia, a highly heterogeneous group of neurodegenerative disorders defined by progressive neurodegeneration of the corticospinal tract motor neurons. SPG5 is caused by recessive mutations in the gene CYP7B1 encoding…

  • Mucopolysaccharidosis type IVA

    Mucopolysaccharidosis type IVA (MPS IVA), also known as Morquio syndrome A, is an autosomal recessive lysosomal storage disease characterized by intracellular accumulation of keratan sulfate and chondroitin-6-sulfate.

  • GLB1-related disorders

    GM1 gangliosidosis is a rare lysosomal storage disorder characterized biochemically by deficient beta-galactosidase activity and clinically by a wide range of variable neurovisceral, ophthalmological and dysmorphic features. GM1 gangliosidosis, also known as GLB1 deficiency, is estimated to occur in…

  • Niemann-Pick disease, type C

    Niemann-Pick disease (NPD) is a lipid storage disorder that results from the deficiency of a lysosomal enzyme, acid sphingomyelinase. Niemann-Pick disease type C is due to variants in one of two different genes, NPC1 and NPC2. It is characterized by progressive neurodegeneration with an estimated…

  • Gaucher disease

    Gaucher disease is a rare genetic disorder characterized by the deposition of glucocerebroside in cells of the macrophage-monocyte system. The disorder results from the deficiency of the enzyme glucocerebrosidase. The prevalence of GD is approximately 1 in 57,000 to 1 in 75,000 worldwide but the…

  • Usher syndrome

    Usher syndrome (USH) is an autosomal recessive disease characterized by hearing loss, retinitis pigmentosa and, in some cases, vestibular dysfunction. It is clinically and genetically heterogeneous and is the most common cause of combined deafness and blindness.

  • Periodic fever syndrome

    Periodic fever syndrome is a group of diseases characterized by episodes of fever with healthy intervals between febrile episodes. The main inherited periodic fever syndromes are familial Mediterranean fever (FMF) caused by pathogenic variants in MEFV, periodic fever, familial caused by pathogenic…

  • Lyso-SM-509 is a highly specific and sensitive biomarker for the identification of Niemann-Pick patients: a 30 months study

    We present data from a 2 year global cohort of Niemann Pick patients using lyso-SM-509 biomarker determination, followed by sequencing of NPC1/2 genes. Determination of lyso-SM-509 is performed by LC/MRM-MS in plasma, serum, EDTA blood anddried blood spots (DBS). We identified in a world-wide study…

  • Glucosylsphingosine (lyso-Gb1) plays a central role in the diagnosis and proper assessment of disease severity in Gaucher patients

    We have developed and systematically validated a high-throughput workflow for the simple testing of GD patients: beta-glucocerebrosidase enzymatic activity, glycosylsphingosine (lyso-Gb1) quantification in DBS followed by GBA gene sequencing from the sample blood sample. We report data from over 940…

  • Thrombocytopenia

    Thrombocytopenia is a disorder of haematopoetic cells with predominant defects of platelets and it is defined as having a platelet count of less than 150,000 in mL of circulating blood, while the normal number of platelets ranges between 150,000 and 450,000 cells per mL of blood. Platelets are…

  • Methylmalonic acidemia

    Methylmalonic acidemia (MMA) is an autosomal recessive disorder of amino acid metabolism, involving a defect in the conversion of methylmalonyl-coenzyme A (CoA) to succinyl-CoA. The prevalence of methylmalonic acidemia is estimated between 1:50,000 and 1:100,000. In Japan, the birth prevalence may…

  • Flecked retina

    Familial benign fleck retina is an autosomal recessive condition associated with a distinctive retinal appearance and no apparent visual or electrophysiologic deficits. Affected individuals are asymptomatic, but fundus examination reveals a striking pattern of diffuse, yellow-white, fleck-like…

  • Myofibrillar myopathy

    Myofibrillar myopathies (MFM) are group of neuromuscular diseases characterized by slowly progressive weakness that can involve both proximal and distal muscles. MFM primarily affects skeletal muscles and in some cases cardiac muscle. The signs and symptoms of MFM vary widely among affected…

  • Kallmann syndrome and hypogonadotropic hypogonadism

    Kallmann syndrome is a developmental genetic disorder characterized by delayed or absent puberty and impaired sense of smell and it belongs to isolated gonadotropin-releasing hormone deficiencies. Deficient hypothalamic gonadotropin-releasing hormone (GnRH) secretion underlies the markedly abnormal…

  • Optic atrophy

    Optic atrophy (OPA) is a neuro-ophthalmic condition characterized by a bilateral degeneration of the optic nerves, causing severe visual loss, typically starting during the first decade of life. The disease affects primarily the retinal ganglion neurons and their axons forming the optic nerve, which…

  • Muscular dystrophy

    Muscular dystrophies are inherited neuromuscular diseases characterized by weakness and wasting due to muscle dysfunction. Age of onset, severity, progression and histopathological findings are variable between different subtypes of muscular dystrophies. Muscular dystrophies include a heterogeneous…

  • Urea cycle disorder

    Urea cycle disorders are a group of genetic disorders caused by a mutation that results in a deficiency of one of the six enzymes in the urea cycle. The urea cycle involves a series of biochemical steps in which nitrogen, a waste product of protein metabolism, is removed from the blood and converted…

  • Cerebellar ataxia

    Cerebellar ataxias are a highly heterogeneous group of genetic disorders distinguished by abnormal wide-based gait, irregular eye and hand movements, speech difficulties, and morphologically characterized by cerebellar atrophy. Ataxia is a neurological feature of abnormal gait due to the lack of…

  • Early infantile epileptic encephalopathy

    Epileptic encephalopathies represent a group of severe epileptic diseases with an early onset, characterized by severe electroencephalographic abnormalities and resistance to standard anti-epileptic treatment. According to the International League Against Epilepsy (ILAE) epileptic encephalopathies…

  • Microcephaly

    Seckel syndrome is rare autosomal recessive disorder characterized by intrauterine growth retardation, dwarfism, microcephaly with mental retardation, and a characteristic 'bird-headed' facial appearance. The major feature of Seckel syndrome is associated autosomal recessive primary microcephaly…

  • Increased regenerative capacity of the olfactory epithelium in Niemann–Pick disease type C1

    Niemann–Pick disease type C1 (NPC1) is a fatal neurovisceral lysosomal lipid storage disorder. The mutation of the NPC1 protein affects the homeostasis and transport of cholesterol and glycosphingolipids from late endosomes/lysosomes to the endoplasmic reticulum resulting in progressive…

  • Mucopolysaccharidoses

    Mucopolysaccharidoses are a group of rare inherited metabolic disorders caused by the absence or dysfunction of lysosomal enzymes and subsequent lysosomal storage of glycosaminoglycans. This group of numerous and highly diverse diseases, with a broad range of symptoms and genetic causes, can be…

  • Joubert syndrome

    Joubert syndrome and related disorders (JSRD) are a group of rare autosomal recessive conditions characterized with developmental delay and multiple congenital anomalies. The obligatory hallmark of JRSD is the molar tooth sign (MTS), a complex midbrain-hindbrain malformation visible on brain…

  • Novel homozygous PCK1 mutation

    Clinical and laboratory data were collected from three Finnish patients including a sibling pair and another unrelated child with unexplained childhood hypoglycemia. Transient elevation of alanine transaminase, lactate and tricarboxylic acid cycle intermediates, especially fumarate, were noticed…

  • Zellweger syndrome

    Peroxisome biogenesis disorders, Zellweger syndrome spectrum (PBD-ZSS) is a group of autosomal recessive disorders affecting the formation of functional peroxisomes, characterized by sensorineural hearing loss, pigmentary retinal degeneration, multiple organ dysfunction, and psychomotor impairment,…

  • Autoimmune lymphoproliferative syndrome

    Autoimmune lymphoproliferative syndrome (ALPS) is a rare, inherited disease caused by abnormal lymphocyte homeostasis. ALPS is characterized by non-malignant lymphoproliferation, splenomegaly, and autoimmune cytopenia. ALPS-affected patients have a lifelong increased risk of Hodgkin's and…

  • Spherocytosis

    Hereditary spherocytosis is a rare inherited disorder characterized by haemolytic anaemia resulting from red blood cell membrane protein anomalies. Hereditary spherocytosis is the most common inherited anemia in individuals of European ancestry, with a prevalence of 1-5 in 10,000 or higher when the…

  • Waardenburg syndrome

    Waardenburg syndrome (WS) is an auditory-pigmentary disorder characterized by congenital sensorineural hearing loss and pigmentary abnormalities of the iris, skin and hair, and with dystopia canthorum. There are four known types of Waardenburg syndrome which are distinguished by their physical…

  • Oculomotor apraxia

    Ataxia with oculomotor apraxia (AOA) is a rare inherited disease characterized by childhood onset of slowly progressive cerebellar ataxia, followed by oculomotor apraxia and a severe primary motor peripheral axonal motor neuropathy. There are 2 major subtypes of AOA, type 1 and type 2, which are…

  • Retinitis pigmentosa

    Retinitis pigmentosa (RP) refers to a group of rare inherited diseases characterized by abnormalities of the photoreceptors of the retina, leading to progressive visual loss. The prevalence of retinitis pigmentosa is 1:3000 to 1:7000 persons, or 14 to 33 per 100,000. Retinitis pigmentosa that does…

  • Spastic paraplegia

    Hereditary Spastic Paraplegia (HSP), also known as SPG (Spastic Paraplegia) is a group of inherited neurological diseases whose main feature is progressive spasticity in the lower limbs as a result of neuronal dysfunction. The condition sometimes also affects the optic nerve and retina or causes…

  • Afibrinogenemia

    Congenital afibrinogenemia is a rare inherited disease resulting from a defect in fibrinogen and characterized by uncontrolled bleeding. The most common manifestations of afibrinogenemia include umbilical cord bleeding, nose-bleeds (epistaxis), hemarthrosis and others. Uncontrolled bleeding in…

  • Aicardi-Goutieres syndrome

    Aicardi-Goutieres syndrome is a rare inherited disorder that mainly affects the brain, immune system, and skin. Most characteristically, Aicardi-Goutières syndrome (AGS) manifests as an early-onset encephalopathy which results in severe intellectual and physical disabilities.

  • Stickler syndrome

    Stickler syndrome is a rare inherited connective tissue disorder characterized by distinctive facial appearance, ocular findings, hearing loss, and mild joint problems. The characteristic flattened facial appearance in Stickler syndrome is a result of underdeveloped bones in the mid-face. Another…

  • Dilated cardiomyopathy

    Cardiomyopathies are disorders with primary abnormalities in the structure and function of the heart. Dilated cardiomyopathy is defined by the presence of left ventricular dilatation and resulting contractile dysfunction. Genetic mutations involving genes that encode cytoskeletal, sarcomere, and…

  • Arrhythmia, hereditary

    Sudden unexplained death is a major source of mortality in developed countries; the major causes (in the absence of the structural heart disease) are primary cardiac arrhythmia syndromes or electrical cardiac diseases ('channelopathies').

  • Arrhythmogenic right ventricular cardiomyopathy

    Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/ARVC) is a heritable heart-muscle disorder which causes progressive replacement of right ventricular myocardium by fibrofatty tissue. ARVD is an important cause of sudden cardiac death (SCD) in young adults, accounting for 22% of cases…

  • Long QT syndrome

    Long QT syndrome (LQTS) is a rare cardiac disease associated with syncope and sudden death due to torsades de pointes and ventricular fibrillation. Syncope and sudden death are frequently associated with physical and emotional stress. LQTS is a cardiac electrophysiologic disorder, characterized by…

  • Catecholaminergic polymorphic ventricular tachycardia

    Catecholamine-induced polymorphic ventricular tachycardia (CPVT) is a pathological disorder triggered by intense physical exercise or acute emotional stress. These conditions could initiate abnormal heartbeat (ventricular tachycardia) which then leads to dizziness, syncope, and in worst cases sudden…

  • Proof-of-principle rapid noninvasive prenatal diagnosis of autosomal recessive founder mutations

    Proof-of-principle rapid noninvasive prenatal diagnosis of autosomal recessive founder mutations. Ten parental alleles in eight unrelated fetuses were diagnosed successfully based on the noninvasive method developed in this study.

  • Molecular, biochemical, and structural analysis of a novel mutation in patients with methylmalonyl-CoA mutase deficiency

    Methylmalonic aciduria (MMA) is an inborn error of metabolism resulting from genetic defects in methylmalonyl-CoA mutase (MCM). We found one homozygous nucleotide change in intron 12 of the MUT gene (c.2125-3 C > G).

  • Diagnosis of Morquio Syndrome in Dried Blood Spots Based on a New MRM-MS Assay

    Mucopolysaccharidosis IVA (MPS IVA; Morquio A disease) is an autosomal recessive disease caused and characterized by a decreased activity of N-acetylgalactosamine-6- sulfate sulfatase (GALNS), resulting in accumulation of keratan sulfate and chondroitin-6- sulfate in tissues and secondary organ…

  • A novel, highly sensitive and specific biomarker for Niemann-Pick type C1 disease

    Lysosomal storage disorders (LSDs), are a heterogeneous group of rare disorders caused by defects in genes encoding for proteins involved in the lysosomal degradation of macromolecules.

  • Pierson Syndrome: A Case Report with a Neonatal Cardiac Association Based on a Novel Mutation in the LAMB2 Gene

    Congenital nephrotic syndrome (CNS) combined with eye abnormalities including microcoria (small pupils that don’t respond to light) and abnormal lens shape can suggest a clinical diagnosis of Pierson syndrome (which mainly affects the kidneys and eyes). The clinical association of Pierson syndrome…

  • Asparagine Synthetase Deficiency: New Inborn Errors of Metabolism

    Asparagine synthetase deficiency (ASD) is a newly identified neurometabolic disorder characterized by severe congenital microcephaly, severe global developmental delay, intractable seizure disorder, and spastic quadriplegia.

  • Alsin related disorders

    Mutations in the ALS2 gene cause three distinct disorders: infantile ascending hereditary spastic paraplegia, juvenile primary lateral sclerosis, and autosomal recessive juvenile amyotrophic lateral sclerosis. We present a review of the literature and the case of a 16-year-old boy who is, to the…

  • Mutation in FAM134B causing hereditary sensory neuropathy with spasticity in a Turkish family

    Hereditary sensory and autonomic neuropathy (HSAN) type 2 is a rare autosomal recessive disease that was first described by Ota et al in 1973 (1). We report the clinical and pathological findings of 2 siblings with HSAN type 2 due to a homozygous mutation in FAM134B.

  • A founder mutation causing a severe methylenetetrahydrofolate reductase (MTHFR) deficiency in Bukharian Jews

    Methylenetetrahydrofolate reductase (MTHFR) deficiency is a rare autosomal recessive disorder. A novel homozygous MTHFR c.474A>T (p.G158G) mutation was detected in two unrelated children of Jewish Bukharian origin. This mutation generates an abnormal splicing and early termination codon.

  • Hereditary spastic paraplegia associated with axonal neuropathy: a novel mutation of SPG3A in a large family

    Spastic paraplegia Type 3A is an autosomal-dominant pure or uncomplicated hereditary spastic paraplegia. It is caused by mutations in SPG3A, the only gene associated with this condition. We identified a novel mutation, c.1040T>C (p. M347T), in a family with axonal neuropathy in addition to spastic…