Results 61 to 70 of about 661,667 (342)

Effect of ischemia on the canine large bowel: A comparison with the small intestine [PDF]

open access: yes, 1996
Mucosal injury caused by ischemia and reperfusion has been well documented with the small intestine, but little is known about the colon. In the present study, the effect of warm and cold ischemia on the canine colon was studied and compared to that on ...
Ikoma, A   +6 more
core   +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

Inverted and mirror repeats in model nucleotide sequences [PDF]

open access: yes, 2007
We analytically and numerically study the probabilistic properties of inverted and mirror repeats in model sequences of nucleic acids. We consider both perfect and non-perfect repeats, i.e. repeats with mismatches and gaps. The considered sequence models
Fabrizio Lillo   +3 more
core   +2 more sources

RNA‐Micelles as Self‐Assembling Structures for Efficient Co‐Delivery of Synergistic siRNA and Nucleoside Analogues to Treat CRC Lung Metastasis

open access: yesAdvanced Functional Materials, EarlyView.
Two kinds of self‐assembled RNA micelles were used to co‐deliver synergistic siRNA and nucleoside analogues for the treatment of colorectal cancer lung metastases. Near‐complete elimination of lung cancer metastases was confirmed in an orthotopic lung metastasis model constructed using human colorectal cancer lung metastases patient surgical samples to
Kai Jin   +4 more
wiley   +1 more source

Purine Metabolism and Rett Syndrome

open access: yesPediatric Neurology Briefs, 1996
Levels of purine and pyridine nucleotides and their metabolites were determined in erythrocytes and plasma of 31 Rett pattients and 17 age-matched controls at the Departments of Molecular Biology and Child Psychiatry, University of Siena, Children’s ...
J Gordon Millichap
doaj   +1 more source

Interaction of low-energy electrons with the purine bases, nucleosides, and nucleotides of DNA [PDF]

open access: yes, 2006
The authors report results from computational studies of the interaction of low-energy electrons with the purine bases of DNA, adenine and guanine, as well as with the associated nucleosides, deoxyadenosine and deoxyguanosine, and the nucleotide ...
McKoy, Vincent, Winstead, Carl
core   +1 more source

Microneedle‐Based Biofertilizer Delivery Improves Plant Growth Through Microbiome Engineering

open access: yesAdvanced Functional Materials, EarlyView.
This figure shows how microneedles are used to deliver biofertilizers to enhance plant growth through microbial migration, metabolic reprogramming, and changes in plant endogenous microbiome. Abstract This study presents a microneedle‐based system for the delivery of rhizospheric biofertilizers into plant tissues to enhance growth.
Zhicheng Le   +14 more
wiley   +1 more source

Changes of Metabolites and Related Flavors in Mandarin Fish (Siniperca chuatsi) during 24 h of Refrigeration [PDF]

open access: yesShipin Kexue
The study aimed to investigate the changes of metabolites and related flavors in the muscle of fresh mandarin fish (Siniperca chuatsi) during 24 h of postmortem refrigeration at 4 ℃ by ultra performance liquid chromatography coupled with high resolution ...
ZHOU Beibei, WU Minglin, JIANG Yangyang, SUN Yongxu, LI Haiyang, CUI Kai
doaj   +1 more source

Methyl jasmonate elicitation of common bean seedlings induces nucleotidase activity and the expression of several nucleotidase genes in radicles

open access: yesBiologia Plantarum, 2021
Nucleotides are the basic elements of the genetic material, participate in bio-energetic processes, are cofactors and components of secondary metabolites, etc. Nucleotide hydrolases (nucleotidases) are phosphatases that remove the 5'-phosphate group from
G. GALVEZ-VALDIVIESO   +3 more
doaj   +1 more source

Upregulation of inducible NO synthase by exogenous adenosine in vascular smooth muscle cells activated by inflammatory stimuli in experimental diabetes [PDF]

open access: yes, 2016
BACKGROUND: Adenosine has been shown to induce nitric oxide (NO) production via inducible NO synthase (iNOS) activation in vascular smooth muscle cells (VSMCs). Although this is interpreted as a beneficial vasodilating pathway in vaso-occlusive disorders,
Cignarella, Andrea   +4 more
core   +2 more sources

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