Biomedical Sciences: المرسلات الحديثة

السجلات المعروضة 401 -- 420 من 738

    • Tumor reversion: a dream or a reality. 

      Tripathi, Avantika; Kashyap, Anjali; Tripathi, Greesham; Yadav, Joni; Bibban, Rakhi; ... more authors ( Pubmed , 2021 , Article)
      Reversion of tumor to a normal differentiated cell once considered a dream is now at the brink of becoming a reality. Different layers of molecules/events such as microRNAs, transcription factors, alternative RNA splicing, ...

    • Nasopharyngeal Expression of Angiotensin-Converting Enzyme 2 and Transmembrane Serine Protease 2 in Children within SARS-CoV-2-Infected Family Clusters. 

      Hasan, Mohammad Rubayet; Ahmad, Muneera Naseer; Dargham, Soha Roger; Zayed, Hatem; Al Hashemi, Alaa; ... more authors ( American Society for Microbiology , 2021 , Article)
      Lower levels of angiotensin-converting enzyme 2 (ACE2) and transmembrane serine protease 2 (TMPRSS2) in the nasal epithelium of children may be related to a lower incidence of severe acute respiratory syndrome coronavirus ...

    • Effect of Water-Pipe Smoking on the Normal Development of Zebrafish 

      Zakaria, Zain Zaki; Aladwi, Shaima Ahmad; Benslimane, Fatiha; Al-Absi, Enas S.; Al-Shafai, Mashael; ... more authors ( MDPI , 2021 , Article)
      Background: Among all types of tobacco consumption,Water-Pipe Smoking (WPS) is the most widely used in the Middle East and second-most in several other countries. The effect of WPS on normal development is not yet fully ...

    • BNT162b2 and mRNA-1273 COVID-19 vaccine effectiveness against the SARS-CoV-2 Delta variant in Qatar. 

      Tang, Patrick; Hasan, Mohammad R; Chemaitelly, Hiam; Yassine, Hadi M; Benslimane, Fatiha M; ... more authors ( Nature Researc , 2021 , Article)
      With the global expansion of the highly transmissible SARS-CoV-2 Delta (B.1.617.2) variant, we conducted a matched test-negative case-control study to assess the real-world effectiveness of COVID-19 messenger RNA vaccines ...

    • Association of Prior SARS-CoV-2 Infection With Risk of Breakthrough Infection Following mRNA Vaccination in Qatar. 

      Abu-Raddad, Laith J; Chemaitelly, Hiam; Ayoub, Houssein H; Yassine, Hadi M; Benslimane, Fatiha M; ... more authors ( American Medical Association , 2021 , Article)
      The effect of prior SARS-CoV-2 infection on vaccine protection remains poorly understood. To assess protection from SARS-CoV-2 breakthrough infection after mRNA vaccination among persons with vs without prior SARS-CoV-2 ...

    • Incidence, risk factors, and feto-maternal outcomes of inappropriate birth weight for gestational age among singleton live births in Qatar: A population-based study 

      Younes, Salma; Samara, Muthanna; Salama, Noor; Al-Jurf, Rana; Nasrallah, Gheyath; ... more authors ( Public Library of Science , 2021 , Article)
      Background Abnormal fetal growth can be associated with factors during pregnancy and at postpartum. Objective In this study, we aimed to assess the incidence, risk factors, and feto-maternal outcomes associated with ...

    • Screening the growth inhibition mechanism of sulfate reducing bacteria by chitosan/lignosulfonate nanocomposite (CS@LS) in seawater media 

      Kashif, Rasool; Pandey, Ravi P.; Rasheed, P. Abdul; Gomez, Tricia; Al-Absi, Enas S.; ... more authors ( Elsevier , 2021 , Article)
      Sulfate-reducing bacteria (SRBs) induced biofilm formation is a global industrial concern due to its role in the development of microbial-induced corrosion (MIC). Herein, we have developed a biodegradable chitosan/lignosulfonate ...

    • ABO blood group association and COVID-19. COVID-19 susceptibility and severity: a review 

      Shibeeb, Sapha; Khan, Aisha ( Elsevier , 2021 , Article)
      Introduction The SARS-CoV-2 pandemic has been affecting the health and economic, as well as social, life of the entire globe since the end of 2019. The virus causes COVID-19, with a wide range of symptoms among the infected ...

    • Editorial: Unconventional Animal Models in Infectious Disease Research 

      Kamareddine, Layla ( Frontiers Media , 2021 , Article)
      Beyond an in vitro setting, the use of a biological system is considered imperious to unravel the enigma of host-pathogen interactions, particularly those eventuating in an infectious disease scenery. In the past two-decades, ...

    • COVID-19 Vaccine Platforms: Challenges and Safety Contemplations 

      Al-Jighefee, Hadeel; Najjar, Hoda; Ahmed, Muna; Qush, Abeer; Awwad, Sara; ... more authors ( MDPI , 2021 , Article Review)
      The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has become a pandemic as of March 2020, creating a global crisis and claiming millions of lives. To halt the pandemic and alleviate its impact on society, ...

    • The effect of surface-modified gold nanorods on the early stage of embryonic development and angiogenesis: Insight into the molecular pathways 

      Mahmoud, Nouf N.; Zakaria, Zain Zaki; Kheraldine, Hadeel; Gupta, Ishita; Vranic, Semir; ... more authors ( MDPI , 2021 , Article)
      Gold nanorods have been implicated in several biomedical applications. Herein, the effect of two surface-modified gold nanorods on the early stages of embryogenesis and angiogenesis was investigated using avian embryos at ...

    • Between Inflammation and Autophagy: The Role of Leptin-Adiponectin Axis in Cardiac Remodeling 

      Kamareddine, Layla; Ghantous, Crystal; Allouch, Soumaya; Al-Ashmar, Sara; Anlar, Gulsen; ... more authors ( Dove Medical Press , 2021 , Article Review)
      Cardiac remodeling is the process by which the heart adapts to stressful stimuli, such as hypertension and ischemia/reperfusion; it ultimately leads to heart failure upon long- term exposure. Autophagy, a cellular catabolic ...

    • Antibody Response to SARS-CoV-2: A Cohort Study in Qatar's Primary Care Settings. 

      Syed, Mohamed Ahmed; Al Nuaimi, Ahmed Sameer; Nasrallah, Gheyath K; Althani, Asmaa Ali J F; Zainel, Abduljaleel Abdullatif; ... more authors ( SAGE Publications , 2021 , Article)
      Globally, countries are rolling out Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) quarantine policies and vaccination programs. Research studies are needed in helping understand the likelihood of acquired ...

    • Waning of BNT162b2 Vaccine Protection against SARS-CoV-2 Infection in Qatar. 

      Chemaitelly, Hiam; Tang, Patrick; Hasan, Mohammad R; AlMukdad, Sawsan; Yassine, Hadi M; ... more authors ( Massachusetts Medical Society , 2021 , Article)
      Waning of vaccine protection against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection or coronavirus disease 2019 (Covid-19) is a concern. The persistence of BNT162b2 (Pfizer-BioNTech) vaccine ...

    • Pfizer-BioNTech mRNA BNT162b2 Covid-19 vaccine protection against variants of concern after one versus two doses. 

      Abu-Raddad, Laith J; Chemaitelly, Hiam; Yassine, Hadi M; Benslimane, Fatiha M; Al Khatib, Hebah A; ... more authors ( Oxford University Press , 2021 , Article)
      Strategies for rolling out vaccination against Coronavirus Disease 2019 (Covid-19) varied across countries. A key question is whether delaying administration of the second vaccine dose to vaccinate the largest number of ...

    • SARS-CoV-2 antibody-positivity protects against reinfection for at least seven months with 95% efficacy 

      Laith J., Abu-Raddad; Chemaitelly, Hiam; Coyle, Peter; Malek, Joel A.; Ahmed, Ayeda A.; ... more authors ( Elsevier , 2021 , Article)
      Background Reinfection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been documented, raising public health concerns. SARS-CoV-2 reinfections were assessed in a cohort of antibody-positive persons ...

    • mRNA-1273 COVID-19 vaccine effectiveness against the B.1.1.7 and B.1.351 variants and severe COVID-19 disease in Qatar 

      Chemaitelly, Hiam; Yassine, Hadi M.; Benslimane, Fatiha M.; Al Khatib, Hebah A.; Tang, Patrick; ... more authors (2021 , Article)
      The SARS-CoV-2 pandemic continues to be a global health concern. The mRNA-1273 (Moderna) vaccine was reported to have an efficacy of 94.1% at preventing symptomatic COVID-19 due to infection with ‘wild-type’ variants in a ...

    • Epidemiological impact of prioritising SARS-CoV-2 vaccination by antibody status: Mathematical modelling analyses 

      Ayoub, H.H.; Ayoub, Houssein H.; Chemaitelly, Hiam; Makhoul, Monia; Al Kanaani, Zaina; ... more authors ( BMJ Publishing Group , 2021 , Article)
      Background Vaccines against SARS-CoV-2 have been developed, but their availability falls far short of global needs. This study aimed to investigate the impact of prioritising available doses on the basis of recipient ...

    • SARS-CoV-2 seroprevalence in the urban population of Qatar: An analysis of antibody testing on a sample of 112,941 individuals 

      Peter V., Coyle; Chemaitelly, Hiam; Ben Hadj Kacem, Mohamed Ali; Abdulla Al Molawi, Naema Hassan; El Kahlout, Reham Awni; ... more authors ( Elsevier , 2021 , Article)
      The study objective was to the assess level of detectable severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodies in the urban population of Qatar. Antibody testing was performed on residual blood specimens ...

    • SARS-CoV-2 Infection Is at Herd Immunity in the Majority Segment of the Population of Qatar. 

      Al-Thani, Mohamed H; Farag, Elmoubasher; Bertollini, Roberto; Al Romaihi, Hamad Eid; Abdeen, Sami; ... more authors ( Oxford University Press , 2021 , Article)
      Qatar experienced a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) epidemic that disproportionately affected the craft and manual worker (CMW) population, who comprise 60% of the total population. This study ...