Results 1 to 10 of about 5,393,020 (341)

The Role of Sink Strength and Nitrogen Availability in the Down-Regulation of Photosynthetic Capacity in Field-Grown Nicotiana tabacum L. at Elevated CO2 Concentration

open access: yesFrontiers in Plant Science, 2017
Down-regulation of photosynthesis is among the most common responses observed in C3 plants grown under elevated atmospheric CO2 concentration ([CO2]).
Ursula M. Ruiz-Vera   +7 more
doaj   +2 more sources

Genetic determinants of HIV-1 subtype C Nef-mediated SERINC3 down-regulation [PDF]

open access: yesVirology Journal
Background Nef-mediated down-regulation of the host restriction factors SERINC3 and SERINC5 significantly enhances HIV-1 infectivity. Natural Nef polymorphisms that affect SERINC3 down-regulation are not as well-characterised as those that affect SERINC5
Nikeisha Samlall   +6 more
doaj   +2 more sources

The Impact of Down-Regulation on Obstetrics and Perinatal Outcomes in Singleton Pregnancies After In Vitro Fertilization

open access: yesFrontiers in Endocrinology, 2021
Backgrounddown-regulation has been widely used in IVF treatment; however, it lacks reports on the impact of down-regulation on obstetrics and perinatal outcomes.
Lei Jin   +5 more
doaj   +1 more source

Uneven Expression of 20 Human Papillomavirus Genes Associated with Oropharyngeal Carcinoma Ali Adel Dawood

open access: yesRambam Maimonides Medical Journal, 2023
Background: Human papillomavirus HPV is considered to be responsible for 95% of virus-related cancers in many organs. Oropharyngeal carcinoma (OC) is distinguished by the transformation of the healthy epithelium into precancerous cells.
Ali Adel Dawood
doaj   +1 more source

Protein Kinase C Life Cycle: Explained Through Systems Biology Approach

open access: yesFrontiers in Physiology, 2022
Protein kinase C (PKC) enzymes are a family of kinases that mediate signal transduction originating at the cell surface. Most cell membranes can contain functional PKC enzymes.
Naveed Aslam, Farah Alvi, Farah Alvi
doaj   +1 more source

Motivated Down-Regulation of Emotion and Compassion Collapse Revisited

open access: yesFrontiers in Psychology, 2022
Compassion collapse is a phenomenon where feelings and helping behavior decrease as the number of needy increases. But what are the underlying mechanisms for compassion collapse? Previous research has attempted to pit two explanations: Limitations of the
William Hagman   +11 more
doaj   +1 more source

Elevated CO2 concentration induces photosynthetic down-regulation with changes in leaf structure, non-structural carbohydrates and nitrogen content of soybean

open access: yesBMC Plant Biology, 2019
Understanding the mechanisms of crops in response to elevated CO2 concentrations is pivotal to estimating the impacts of climate change on the global agricultural production.
Yunpu Zheng   +8 more
semanticscholar   +1 more source

Inhibition of cell proliferation and increased-apoptosis of AGS and SNU-5 cancer cells following small interfering RNA (siRNA)-mediated down-regulation of vascular endothelial growth factor receptor 1 (VEGFR1)

open access: yesChronic Diseases Journal, 2018
BACKGROUND: Angiogenesis is vital for development of normal tissue and wound healing; but it play an important role in development of some diseases such as different types of cancer.
Esmaeil Rahimi   +2 more
doaj   +1 more source

Global analysis of HBV-mediated host proteome and ubiquitylome change in HepG2.2.15 human hepatoblastoma cell line

open access: yesCell & Bioscience, 2021
Hepatitis B virus (HBV) infection remains a major health issue worldwide and the leading cause of cirrhosis and hepatocellular carcinoma (HCC). It has been reported previously that HBV invasion can extensively alter transcriptome, the proteome of ...
Sen Yuan   +12 more
doaj   +1 more source

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