Results 101 to 110 of about 113,640 (303)

Zinc deficiency deteriorates ovarian follicle development and function by inhibiting mitochondrial function

open access: yesJournal of Ovarian Research
Zinc (Zn) is a crucial trace element essential for human growth and development, particularly for reproductive health. Previous research has shown a decrease in serum zinc concentration with age and individuals with conditions such as polycystic ovary ...
Wen-Jiao Liu   +7 more
doaj   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Zinc function in childhood brain

open access: yesNigerian Journal of Paediatrics, 2022
Zinc is essential in the metabolic activities in the body including protein, DNA and RNA synthesis. It plays a role in neurogenesis, maturation, and migration of neurons and in synapse formation.Zinc is high in the hippocampal neurons which is involved ...
Torty Chimaeze, Asindi A Asindi
doaj  

A Moderate Zinc Deficiency Does Not Impair Gene Expression of PPARα, PPARγ, and Mitochondrial Enoyl-CoA Delta Isomerase in the Liver of Growing Rats

open access: yes, 2014
The aim of the study was to investigate the impact of a moderate zinc deficiency and a high intake of polyunsaturated fat on the mRNA expression of peroxisome-proliferator-activated receptor alpha (PPARα), peroxisome-proliferator-activated receptor gamma
Jennifer Justus, Edgar Weigand
core   +1 more source

Role of Intrinsic Electron Trapping in Negative Charging of Amorphous Alumina

open access: yesAdvanced Functional Materials, EarlyView.
Intrinsic electron trapping in amorphous Al2O3 is examined using hybrid‐DFT models spanning a wide density range. Both spontaneous and thermally activated trapping are identified, with pronounced spontaneous localization in dense, partly crystallized structures.
Jack W. Strand   +5 more
wiley   +1 more source

Zinc deficiency

open access: yesBMJ, 2003
Although it has been known for more than six decades that zinc is essential for the growth of micro-organisms, plants, and animals, until 1961 it was believed that zinc deficiency in humans could never occur. It is now clear that nutritional deficiency of zinc is widely prevalent and its morbidities are severe. This article describes the history of the
openaire   +3 more sources

The role of zinc in carcinogenesis

open access: yes, 2016
Zinc is the second most abundant trace element in humans and is essential for the activity of more than 300 enzymes. It affects the conformation of many transcription factors associated with control of cell proliferation, apoptosis, and signaling ...
Zapaterini, J. R. [UNESP]   +3 more
core  

Liquid Phase Transmission Electron Microscopy: A Window into the Early Stages of Complex Material Formation

open access: yesAdvanced Functional Materials, EarlyView.
Liquid‐phase transmission electron microscopy enables direct observation of nucleation and growth processes in solution. This review is dedicated to the remembrance of Helmut Cölfen and highlights recent studies on complex materials—oxides, biominerals, organic–inorganic crystals—which were central to his research activity. It summarizes key milestones,
Charles Sidhoum   +5 more
wiley   +1 more source

Overt hepatic encephalopathy precipitated by zinc deficiency

open access: yes, 1991
Encephalopathy in liver disease may be unresponsive to protein restriction, lactulose, and neomycin. Zinc supplements have been reported to improve psychometric performance in liver cirrhosis, but the importance of zinc deficiency in overt hepatic ...
Van Der Rijt, Carin C.D.; id_orcid   +4 more
core   +1 more source

Intrinsic Photoactive Star ZnPc–Poly(glutamate) Nanoplatforms for Multimodal Glioblastoma Therapy and Brain‐Targeted Delivery

open access: yesAdvanced Functional Materials, EarlyView.
An intrinsic photoactive star‐shaped zinc phtalocyanine‐poly(L‐glutamic acid) (ZnPc‐PGA) nanoplatform for multimodal glioblastoma (GBM) therapy and brain‐targeted elivery. A ZnPc‐PGA‐based multifunctional theranostic nanocarrier platform enables image‐guided, multimodal GBM therapy. ZnPc‐PGA nanocarriers support the integration of fluorescence imaging,
Amina Benaicha‐Fernández   +14 more
wiley   +1 more source

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