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Frontiers | A Novel Probable Pathogenic PSEN2 Mutation p.Phe369Ser Associated With Early-Onset Alzheimer's Disease in a Chinese Han Family: A Case Report


Department of Neurology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
The pathogenesis of Alzheimer s disease is complex, and early-onset Alzheimer s disease (EOAD) is mostly influenced by genetic factors. Presenilin-1, presenilin-2 (PSEN2), and amyloid precursor protein are currently known as the three main causative genes for autosomal dominant EOAD, with the PSEN2 mutation being the rarest. In this study, we reported a 56-year-old Chinese Han proband who presented with prominent progressive amnesia, aphasia, executive function impairment, and depression 5 years ago. The 3-year follow-up showed that the patient experienced progressive brain atrophy displayed on magnetic resonance imaging (MRI) and dramatic cognitive decline assessed by neuropsychological evaluation. This patient was clinically diagnosed as EOAD based on established criteria. A heterozygous variant (NM 000447.2: c.1106T>C) of PSEN2 was identified for the first time in this patient a ....

United Kingdom , United States , San Diego , Ultrasonicator Covaris , Silva Lopes , Alzheimers Dement , User Tax , National Natural Science Foundation Of China , Department Of Neurology , Sequence Control Software Illumina , Key Research , Development Projects Of Anhui Province , National Institute On , Xgen Exome Research Panel , Mathworks Inc , Exome Aggregation Consortium Ex , Montreal Neurological Institute , Alzheimer Association , Chinese Han , First Affiliated Hospital , Anhui Medical University , Ethics Committee , Computational Anatomy Toolbox , Mini Mental State Examination , Montreal Cognitive Assessment , Cambridge Cognitive Examination Chinese ,

B.1.617.2 variant of SARS-CoV-2 is partially resistant to antibody-mediated neutralization

A team of scientists from France has recently conducted a study to evaluate the sensitivity of the B.1.617 variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) to antibody-mediated neutralization. ....

Sanchari Sinha Dutta , Graphics System , Ars Cov 2 , Coronavirus Disease Covid 19 , Evere Acute Respiratory , Evere Acute Respiratory Syndrome , சஞ்சரி சீன்ஹா தத்தா , கிராபிக்ஸ் அமைப்பு ,

Nanobody works against all SARS-CoV-2 variants of concern in animal model


Nanobody works against all SARS-CoV-2 variants of concern in animal model
Researchers based in Belgium have developed a new antibody drug that is highly successful at neutralizing coronavirus disease 2019 (COVID-19) in Syrian hamsters. The new biologic was administered to the rodents and was found to be equally successful at neutralizing the original severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) strain, and also the new mutant variants, such as the South African and UK strains.
A pre-print version of the research paper is available to read in full on the
Antibody immunity
Vaccines represent potent tools for combatting diseases, however, they are limited in some regards. Immunity may be short-lived or less effective in old age groups. Limited vaccine availability in many countries, vaccine hesitancy, are other factors of which the impact is currently uncertain. ....

South Africa , United Kingdom , South African , Michael Burgessmar , Michael Burgess , Nico Callewaert Nicocallewaert , Xavier Saelens , Nico Callewaert , University Of Gent , Graphics System , Open Source Version , Animal Model , Coronavirus Disease Covid 19 , Sars Cov 2 , Corona Virus , Immune System , Severe Acute Respiratory , Severe Acute Respiratory Syndrome , ஒன்றுபட்டது கிஂக்டம் , மைக்கேல் பர்கஸ் , பல்கலைக்கழகம் ஆஃப் ஏஜென்ட் , கிராபிக்ஸ் அமைப்பு , திறந்த மூல பதிப்பு , விலங்கு மாதிரி , கொரோனா வைரஸ் , நோய் எதிர்ப்பு சக்தி அமைப்பு ,