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  1. Article: Children's Oral Health Status Among Urban and Rural Areas of Qassim Region, Saudi Arabia: A Cross-Sectional Study.

    Alhudaithi, Abdullah S / Alsughier, Zeyad / Alzaidan, Hamad / Aldhelai, Thiyezen A

    Cureus

    2023  Volume 15, Issue 10, Page(s) e47947

    Abstract: Background:  Dental caries is a disease that is quite common in children and has a negative impact on their oral health, mental health, and quality of life. This study aimed to collect and correlate information about oral health awareness, oral health ... ...

    Abstract Background:  Dental caries is a disease that is quite common in children and has a negative impact on their oral health, mental health, and quality of life. This study aimed to collect and correlate information about oral health awareness, oral health status, and oral hygiene practices in the urban and rural areas of Saudi Arabia.  Methods: The cross-sectional study was carried out among three dental clusters of Qassim from November 2022 to April 2023 in 12 schools on seven- to 12-year-old children. Data collection was done using the WHO Oral Health Questionnaire for Children.
    Results:  The current investigation included 700 children, 360 males and 340 females. Both urban and rural parents were more educated. Most children in rural areas reported excellent gum health than in urban areas (48.2% and 41.3%, respectively). Pain was the most common cause of visiting the dentist in rural more than in urban areas (55.7% and 54.5%, respectively). A significantly higher frequency of sugar consumption was reported for rural children.
    Conclusion:  Most rural and urban children take care of their teeth. The vast majority of them use a toothbrush and toothpaste to clean their teeth. However, the dental visit was not regular and only related to the toothache. They need more oral health education and promotion programs to improve the knowledge of oral health behavior in the Qassim region and the rest of Saudi Arabia.
    Language English
    Publishing date 2023-10-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2747273-5
    ISSN 2168-8184
    ISSN 2168-8184
    DOI 10.7759/cureus.47947
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: PRSS8, encoding prostasin, is mutated in patients with autosomal recessive ichthyosis

    Shamseldin, Hanan E. / Derar, Nada / Alzaidan, Hamad / AlHathal, Naif / Alfalah, Abdullah / Abdulwahab, Firdous / Alzaid, Tariq / Alkeraye, Salim / Alobaida, Saud A. / Alkuraya, Fowzan S.

    Hum Genet. 2023 Apr., v. 142, no. 4 p.477-482

    2023  

    Abstract: Ichthyosis is a genetically heterogeneous genodermatosis characterized by severely rough, dry and scaly skin. We report two consanguineous families with congenital ichthyosis. Combined positional mapping and exome sequencing of the two families revealed ... ...

    Abstract Ichthyosis is a genetically heterogeneous genodermatosis characterized by severely rough, dry and scaly skin. We report two consanguineous families with congenital ichthyosis. Combined positional mapping and exome sequencing of the two families revealed novel homozygous likely deleterious variants in PRSS8 (encoding prostasin) within a linkage locus on chromosome 16. One variant involved a canonical splice site and was associated with reduced abundance of the normal transcript, while the other was a missense variant that altered a highly conserved residue. The phenotype of Prss8 knockout mouse bears a striking resemblance to the one we describe in human patients, including the skin histopathology. Our data suggest a novel PRSS8-related ichthyosis disorder.
    Keywords histopathology ; homozygosity ; humans ; ichthyosis ; knockout mutants ; loci ; phenotype
    Language English
    Dates of publication 2023-04
    Size p. 477-482.
    Publishing place Springer Berlin Heidelberg
    Document type Article ; Online
    ZDB-ID 223009-4
    ISSN 1432-1203 ; 0340-6717
    ISSN (online) 1432-1203
    ISSN 0340-6717
    DOI 10.1007/s00439-023-02527-3
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Clinical variability and outcome of succinyl-CoA:3-ketoacid CoA transferase deficiency caused by a single OXCT1 mutation: Report of 17 cases.

    Alghamdi, Malak A / Tohary, Mohammed / Alzaidan, Hamad / Imtiaz, Faiqa / Al-Hassnan, Zuhair N

    JIMD reports

    2021  Volume 62, Issue 1, Page(s) 91–96

    Abstract: Succinyl-CoA:3-ketoacid CoA transferase (SCOT) deficiency is an inherited metabolic disease caused by mutated OXCT1 gene resulting in recurrent ketoacidosis. Analysis of longitudinal data in such an ultra-rare disease is warranted to delineate genotype- ... ...

    Abstract Succinyl-CoA:3-ketoacid CoA transferase (SCOT) deficiency is an inherited metabolic disease caused by mutated OXCT1 gene resulting in recurrent ketoacidosis. Analysis of longitudinal data in such an ultra-rare disease is warranted to delineate genotype-phenotype correlations and management outcome. A retrospective analysis of 17 patients, from nine unrelated families, with SCOT deficiency who were followed up in the Medical Genetics Clinic at King Faisal Specialist Hospital and Research Centre was conducted. All the patients were homozygous for p.R468C in
    Language English
    Publishing date 2021-09-14
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2672872-2
    ISSN 2192-8312 ; 2192-8304
    ISSN (online) 2192-8312
    ISSN 2192-8304
    DOI 10.1002/jmd2.12248
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: PRSS8, encoding prostasin, is mutated in patients with autosomal recessive ichthyosis.

    Shamseldin, Hanan E / Derar, Nada / Alzaidan, Hamad / AlHathal, Naif / Alfalah, Abdullah / Abdulwahab, Firdous / Alzaid, Tariq / Alkeraye, Salim / Alobaida, Saud A / Alkuraya, Fowzan S

    Human genetics

    2023  Volume 142, Issue 4, Page(s) 477–482

    Abstract: Ichthyosis is a genetically heterogeneous genodermatosis characterized by severely rough, dry and scaly skin. We report two consanguineous families with congenital ichthyosis. Combined positional mapping and exome sequencing of the two families revealed ... ...

    Abstract Ichthyosis is a genetically heterogeneous genodermatosis characterized by severely rough, dry and scaly skin. We report two consanguineous families with congenital ichthyosis. Combined positional mapping and exome sequencing of the two families revealed novel homozygous likely deleterious variants in PRSS8 (encoding prostasin) within a linkage locus on chromosome 16. One variant involved a canonical splice site and was associated with reduced abundance of the normal transcript, while the other was a missense variant that altered a highly conserved residue. The phenotype of Prss8 knockout mouse bears a striking resemblance to the one we describe in human patients, including the skin histopathology. Our data suggest a novel PRSS8-related ichthyosis disorder.
    MeSH term(s) Animals ; Humans ; Mice ; Ichthyosis/genetics ; Mice, Knockout ; Mutation ; Mutation, Missense ; Pedigree ; Phenotype ; Serine Endopeptidases/genetics
    Chemical Substances prostasin (EC 3.4.21.-) ; Serine Endopeptidases (EC 3.4.21.-)
    Language English
    Publishing date 2023-01-30
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 223009-4
    ISSN 1432-1203 ; 0340-6717
    ISSN (online) 1432-1203
    ISSN 0340-6717
    DOI 10.1007/s00439-023-02527-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Novel pathogenic

    Al-Hamed, Mohamed H / Alzaidan, Hamad / Hussein, Maged / Albaik, Lina / Qari, Alya / Sayer, John A / Imtiaz, Faiqa

    Clinical kidney journal

    2020  Volume 14, Issue 2, Page(s) 728–730

    Language English
    Publishing date 2020-06-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 2655800-2
    ISSN 2048-8513 ; 2048-8505
    ISSN (online) 2048-8513
    ISSN 2048-8505
    DOI 10.1093/ckj/sfaa090
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: COVID-19 in Unvaccinated patients with inherited metabolic disorders: A single center experience.

    Altassan, Ruqaiah / Sulaiman, Raashda A / Alfalah, Abdullah / Alwagiat, Waad / Megdad, Eman / Alqasabi, Dana / Handoom, Bedour / Almesned, Munirah / Al-Amri, Hassan / Alhassnan, Zuhair / Alsayed, Moeen-Aldeen / Alzaidan, Hamad / Rahbeeni, Zuhair / Derar, Nada / Al-Owain, Mohammed / Albanyan, Esam

    European journal of medical genetics

    2022  Volume 65, Issue 11, Page(s) 104602

    Abstract: Patients with certain inherited metabolic disorders (IMD) are at high risk for metabolic decompensation with exposure to infections. The COVID-19 pandemic has been particularly challenging for health care providers dealing with IMD patients, in view of ... ...

    Abstract Patients with certain inherited metabolic disorders (IMD) are at high risk for metabolic decompensation with exposure to infections. The COVID-19 pandemic has been particularly challenging for health care providers dealing with IMD patients, in view of its unpredictable consequences in these patients. There is limited data in literature on evaluating the impact and the outcome of COVID-19 infection in these patients. This cross-sectional retrospective study on a large cohort of unvaccinated IMD patients, reviewed the incidence of COVID-19 infection, disease manifestation and outcome during the pandemic between November 2019 and July 2021. In this cohort of 1058 patients, 11.7% (n = 124) were infected with COVID-19. Their median age was 16 years (age range 2-42); 57% (n = 71) were males. Post-exposure positive test was noted in 78% (n = 97) patients, while 19% (n = 24) had symptomatic diagnosis and three patients tested positive during pre-hospital visits screening. Most patients, 68.5% (n = 85) had mild COVID-19 related symptoms such as fever, cough, headache and diarrhea while 13.7% (n = 17) patients had no symptoms. Of twenty-two patients (17.7%) who required hospitalization, 16 were adults with various intoxication and energy metabolism disorders, who developed IMD related complications such as metabolic acidosis, hyperammonemia, acute pancreatitis, hypoglycemia, rhabdomyolysis and thrombosis. Ten patients needed intensive care management. The cohort death rate was 2.4% (3 patients). Overall, the clinical course of COVID-19 infection in these IMD patients was relatively mild except for patients with intoxication and energy metabolism disorders who had high risk of developing acute metabolic decompensation with severe complications.
    MeSH term(s) Acute Disease ; Adolescent ; Adult ; COVID-19/complications ; Child ; Child, Preschool ; Cross-Sectional Studies ; Female ; Humans ; Male ; Metabolic Diseases/complications ; Metabolic Diseases/epidemiology ; Pancreatitis/complications ; Pandemics ; Retrospective Studies ; SARS-CoV-2 ; Young Adult
    Language English
    Publishing date 2022-08-30
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2184135-4
    ISSN 1878-0849 ; 1769-7212
    ISSN (online) 1878-0849
    ISSN 1769-7212
    DOI 10.1016/j.ejmg.2022.104602
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: AXIN1 bi-allelic variants disrupting the C-terminal DIX domain cause craniometadiaphyseal osteosclerosis with hip dysplasia.

    Terhal, Paulien / Venhuizen, Anton J / Lessel, Davor / Tan, Wen-Hann / Alswaid, Abdulrahman / Grün, Regina / Alzaidan, Hamad I / von Kroge, Simon / Ragab, Nada / Hempel, Maja / Kubisch, Christian / Novais, Eduardo / Cristobal, Alba / Tripolszki, Kornelia / Bauer, Peter / Fischer-Zirnsak, Björn / Nievelstein, Rutger A J / van Dijk, Atty / Nikkels, Peter /
    Oheim, Ralf / Hahn, Heidi / Bertoli-Avella, Aida / Maurice, Madelon M / Kornak, Uwe

    American journal of human genetics

    2023  Volume 110, Issue 9, Page(s) 1470–1481

    Abstract: Sclerosing skeletal dysplasias result from an imbalance between bone formation and resorption. We identified three homozygous, C-terminally truncating AXIN1 variants in seven individuals from four families affected by macrocephaly, cranial hyperostosis, ... ...

    Abstract Sclerosing skeletal dysplasias result from an imbalance between bone formation and resorption. We identified three homozygous, C-terminally truncating AXIN1 variants in seven individuals from four families affected by macrocephaly, cranial hyperostosis, and vertebral endplate sclerosis. Other frequent findings included hip dysplasia, heart malformations, variable developmental delay, and hematological anomalies. In line with AXIN1 being a central component of the β-catenin destruction complex, analyses of primary and genome-edited cells harboring the truncating variants revealed enhanced basal canonical Wnt pathway activity. All three AXIN1-truncating variants resulted in reduced protein levels and impaired AXIN1 polymerization mediated by its C-terminal DIX domain but partially retained Wnt-inhibitory function upon overexpression. Addition of a tankyrase inhibitor attenuated Wnt overactivity in the AXIN1-mutant model systems. Our data suggest that AXIN1 coordinates the action of osteoblasts and osteoclasts and that tankyrase inhibitors can attenuate the effects of AXIN1 hypomorphic variants.
    MeSH term(s) Humans ; Tankyrases/genetics ; Tankyrases/metabolism ; Hip Dislocation ; Axin Protein/genetics ; Axin Protein/metabolism ; Wnt Signaling Pathway/genetics ; Osteosclerosis/genetics ; beta Catenin/metabolism
    Chemical Substances Tankyrases (EC 2.4.2.30) ; Axin Protein ; beta Catenin ; AXIN1 protein, human
    Language English
    Publishing date 2023-08-14
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 219384-x
    ISSN 1537-6605 ; 0002-9297
    ISSN (online) 1537-6605
    ISSN 0002-9297
    DOI 10.1016/j.ajhg.2023.07.011
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: The recurrent missense mutation p.(Arg367Trp) in YARS1 causes a distinct neurodevelopmental phenotype.

    Averdunk, Luisa / Sticht, Heinrich / Surowy, Harald / Lüdecke, Hermann-Josef / Koch-Hogrebe, Margarete / Alsaif, Hessa S / Kahrizi, Kimia / Alzaidan, Hamad / Alawam, Bashayer S / Tohary, Mohamed / Kraus, Cornelia / Endele, Sabine / Wadman, Erin / Kaplan, Julie D / Efthymiou, Stephanie / Najmabadi, Hossein / Reis, André / Alkuraya, Fowzan S / Wieczorek, Dagmar

    Journal of molecular medicine (Berlin, Germany)

    2021  Volume 99, Issue 12, Page(s) 1755–1768

    Abstract: Pathogenic variants in aminoacyl-tRNA synthetases (ARS1) cause a diverse spectrum of autosomal recessive disorders. Tyrosyl tRNA synthetase (TyrRS) is encoded by YARS1 (cytosolic, OMIM*603,623) and is responsible of coupling tyrosine to its specific tRNA. ...

    Abstract Pathogenic variants in aminoacyl-tRNA synthetases (ARS1) cause a diverse spectrum of autosomal recessive disorders. Tyrosyl tRNA synthetase (TyrRS) is encoded by YARS1 (cytosolic, OMIM*603,623) and is responsible of coupling tyrosine to its specific tRNA. Next to the enzymatic domain, TyrRS has two additional functional domains (N-Terminal TyrRS
    MeSH term(s) Adolescent ; Child ; Child, Preschool ; Female ; Humans ; Male ; Mutation, Missense ; Neurodevelopmental Disorders/genetics ; Phenotype ; Protein Conformation ; Tyrosine-tRNA Ligase/chemistry ; Tyrosine-tRNA Ligase/genetics ; Exome Sequencing
    Chemical Substances Tyrosine-tRNA Ligase (EC 6.1.1.1)
    Language English
    Publishing date 2021-09-18
    Publishing country Germany
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1223802-8
    ISSN 1432-1440 ; 0946-2716
    ISSN (online) 1432-1440
    ISSN 0946-2716
    DOI 10.1007/s00109-021-02124-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Correction to: The recurrent missense mutation p.(Arg367Trp) in YARS1 causes a distinct neurodevelopmental phenotype.

    Averdunk, Luisa / Sticht, Heinrich / Surowy, Harald / Lüdecke, Hermann-Josef / Koch-Hogrebe, Margarete / Alsaif, Hessa S / Kahrizi, Kimia / Alzaidan, Hamad / Alawam, Bashayer S / Tohary, Mohamed / Kraus, Cornelia / Endele, Sabine / Wadman, Erin / Kaplan, Julie D / Efthymiou, Stephanie / Najmabadi, Hossein / Reis, André / Alkuraya, Fowzan S / Wieczorek, Dagmar

    Journal of molecular medicine (Berlin, Germany)

    2021  Volume 99, Issue 12, Page(s) 1769–1770

    Language English
    Publishing date 2021-10-18
    Publishing country Germany
    Document type Published Erratum
    ZDB-ID 1223802-8
    ISSN 1432-1440 ; 0946-2716
    ISSN (online) 1432-1440
    ISSN 0946-2716
    DOI 10.1007/s00109-021-02153-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: The phenotype, genotype, and outcome of infantile-onset Pompe disease in 18 Saudi patients.

    Al-Hassnan, Zuhair N / Khalifa, Ola A / Bubshait, Dalal K / Tulbah, Sahar / Alkorashy, Maarab / Alzaidan, Hamad / Alowain, Mohammed / Rahbeeni, Zuhair / Al-Sayed, Moeen

    Molecular genetics and metabolism reports

    2018  Volume 15, Page(s) 50–54

    Abstract: Infantile-Onset Pompe Disease (IOPD) is an autosomal recessive disorder of glycogen metabolism resulting from deficiency of the lysosomal hydrolase acid α-glucosidase encoded ... ...

    Abstract Infantile-Onset Pompe Disease (IOPD) is an autosomal recessive disorder of glycogen metabolism resulting from deficiency of the lysosomal hydrolase acid α-glucosidase encoded by
    Language English
    Publishing date 2018-02-07
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2821908-9
    ISSN 2214-4269
    ISSN 2214-4269
    DOI 10.1016/j.ymgmr.2018.02.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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