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Topic Review
Analysis of Catalogue for Transmission Genetics in Arabs
Lebanon has a high annual incidence of birth defects at 63 per 1000 live births, most of which are due to genetic factors. The Catalogue for Transmission Genetics in Arabs (CTGA) database, currently holds data on 642 genetic diseases and 676 related genes, described in Lebanese subjects. A subset of disorders (14/642) has exclusively been described in the Lebanese population, while 24 have only been reported in CTGA and not on OMIM. An analysis of all disorders highlights a preponderance of congenital malformations, deformations and chromosomal abnormalities and demonstrates that 65% of reported disorders follow an autosomal recessive inheritance pattern. In addition, our analysis reveals that at least 58 known genetic disorders were first mapped in Lebanese families. CTGA also hosts 1316 variant records described in Lebanese subjects, 150 of which were not reported on ClinVar or dbSNP. Most variants involved substitutions, followed by deletions, duplications, as well as in-del and insertion variants. This review of genetic data from the CTGA database highlights the need for screening programs, and is, to the best of our knowledge, the most comprehensive report on the status of genetic disorders in Lebanon to date.
  • 854
  • 26 Oct 2021
Topic Review
Cross-Amplification in Strigiformes: A New STR Panel
Strigiformes are affected by a substantial decline mainly caused by habitat loss and destruction, poaching, and trapping. Moreover, the increasing trend in bird trade and the growing interest in wild-caught rather than captive-bred birds are expected to encourage illegal trade. The biomolecular investigation represents a valuable tool to track illegal trade and to explore the genetic variability to preserving biodiversity. Microsatellite loci (STRs) are the most used markers to study genetic variability. Despite the availability of species-specific microsatellite loci in Strigiformes, a unique panel permitting the description of the genetic variability across species has not been identified yet.
  • 854
  • 19 Nov 2021
Topic Review
ATP7A Gene
ATPase copper transporting alpha
  • 853
  • 24 Dec 2020
Topic Review
GJB3 Gene
Gap junction protein beta 3
  • 853
  • 25 Dec 2020
Topic Review
PDGFB Gene
platelet derived growth factor subunit B
  • 853
  • 25 Dec 2020
Topic Review
TREM2 Gene
Triggering receptor expressed on myeloid cells 2: The TREM2 gene provides instructions for making a protein called triggering receptor expressed on myeloid cells 2.
  • 853
  • 25 Dec 2020
Topic Review
RT-qPCR of Aspergillus
Aspergillus is a genus of filamentous fungi with vast geographic and ecological distributions. Species within this genus are clinically, agriculturally and biotechnologically relevant, leading to increasing interest in elucidating gene expression dynamics of key metabolic and physiological processes. Reverse-transcription quantitative Polymerase Chain Reaction (RT-qPCR) is a sensitive and specific method of quantifying gene expression.
  • 853
  • 19 Jul 2021
Topic Review
Influence of Prenatal Methamphetamine Abuse on the Brain
Methamphetamine (MA), a psychostimulant, has become a serious problem in recent years. It is one of the most widely abused psychostimulants in the world.
  • 853
  • 29 Oct 2021
Topic Review
MicroRNA-Target Interaction Regulatory Network
Alzheimer’s Disease (AD) is a progressive neurodegenerative disorder and the most common cause of dementia; however, early diagnosis of the disease is challenging. Research suggests that biomarkers found in blood, such as microRNAs (miRNA), may be promising for AD diagnostics. Experimental data on miRNA–target interactions (MTI) associated with AD are scattered across databases and publications, thus making the identification of promising miRNA biomarkers for AD difficult. In response to this, a list of experimentally validated AD-associated MTIs was obtained from miRTarBase. Cytoscape was used to create a visual MTI network. STRING software was used for protein–protein interaction analysis and mirPath was used for pathway enrichment analysis. Several targets regulated by multiple miRNAs were identified, including: BACE1, APP, NCSTN, SP1, SIRT1, and PTEN. The miRNA with the highest numbers of interactions in the network were: miR-9, miR-16, miR-34a, miR-106a, miR-107, miR-125b, miR-146, and miR-181c. The analysis revealed seven subnetworks, representing disease modules which have a potential for further biomarker development. The obtained MTI network is not yet complete, and additional studies are needed for the comprehensive understanding of the AD-associated miRNA targetome. 
  • 853
  • 08 Dec 2021
Topic Review
X-linked Creatine Deficiency
X-linked creatine deficiency is an inherited disorder that primarily affects the brain.
  • 852
  • 24 Dec 2020
Topic Review
F11 Gene
Coagulation factor XI
  • 852
  • 24 Dec 2020
Topic Review
PIK3CD Gene
phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit delta
  • 852
  • 25 Dec 2020
Topic Review
PLA2G6 Gene
phospholipase A2 group VI
  • 852
  • 25 Dec 2020
Topic Review
STAT4 Gene
Signal transducer and activator of transcription 4: The STAT4 gene provides instructions for a protein that acts as a transcription factor, which means that it attaches (binds) to specific regions of DNA and helps control the activity of certain genes.
  • 851
  • 22 Dec 2020
Topic Review
Hypohidrotic Ectodermal Dysplasia
Hypohidrotic ectodermal dysplasia is one of more than 100 types of ectodermal dysplasia. Starting before birth, these disorders result in the abnormal development of ectodermal tissues, particularly the skin, hair, nails, teeth, and sweat glands.
  • 851
  • 23 Dec 2020
Topic Review
CLCN1 Gene
chloride voltage-gated channel 1
  • 851
  • 24 Dec 2020
Topic Review
Erdheim-Chester Disease
Erdheim-Chester disease is a rare type of slow-growing blood cancer called a histiocytic neoplasm, which results in overproduction of cells called histiocytes. Histiocytes normally function to destroy foreign substances and protect the body from infection. In Erdheim-Chester disease, the excess production of histiocytes (histiocytosis) leads to inflammation that can damage organs and tissues throughout the body, causing them to become thickened, dense, and scarred (fibrotic); this tissue damage may lead to organ failure.
  • 851
  • 25 Dec 2020
Topic Review
GNE Gene
Glucosamine (UDP-N-acetyl)-2-epimerase/N-acetylmannosamine kinase
  • 850
  • 23 Dec 2020
Topic Review
Myhre Syndrome
Myhre syndrome is a rare condition that affects connective tissue. Connective tissue provides strength and flexibility to structures throughout the body. Myhre syndrome has a variety of signs and symptoms that affect many parts of the body, though not everyone has all the possible features. The features of the condition can range in severity, and some features become more apparent with age.
  • 850
  • 23 Dec 2020
Topic Review
NNT Gene
nicotinamide nucleotide transhydrogenase
  • 850
  • 24 Dec 2020
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