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Showing 25 to 36 of 164 entries
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P2X7 Interactions and Signaling - Making Head or Tail of It.

Frontiers in molecular neuroscience

Kopp R, Krautloher A, Ramírez-Fernández A, Nicke A.
PMID: 31440138
Front Mol Neurosci. 2019 Aug 07;12:183. doi: 10.3389/fnmol.2019.00183. eCollection 2019.

Extracellular adenine nucleotides play important roles in cell-cell communication and tissue homeostasis. High concentrations of extracellular ATP released by dying cells are sensed as a danger signal by the P2X7 receptor, a non-specific cation channel. Studies in P2X7 knockout...

Molecular mechanism of glycolytic flux control intrinsic to human phosphoglycerate kinase.

Proceedings of the National Academy of Sciences of the United States of America

Yagi H, Kasai T, Rioual E, Ikeya T, Kigawa T.
PMID: 34893542
Proc Natl Acad Sci U S A. 2021 Dec 14;118(50). doi: 10.1073/pnas.2112986118.

Glycolysis plays a fundamental role in energy production and metabolic homeostasis. The intracellular [adenosine triphosphate]/[adenosine diphosphate] ([ATP]/[ADP]) ratio controls glycolytic flux; however, the regulatory mechanism underlying reactions catalyzed by individual glycolytic enzymes enabling flux adaptation remains incompletely understood. Phosphoglycerate...

Regulation of skeletal muscle AMP deaminase. Carbethoxylation of His-51 belonging to the zinc coordination sphere of the rabbit enzyme promotes its desensitization towards the inhibition by ATP.

Biochimica et biophysica acta. General subjects

Ronca F, Raggi A.
PMID: 34710488
Biochim Biophys Acta Gen Subj. 2021 Oct 25;1866(2):130044. doi: 10.1016/j.bbagen.2021.130044. Epub 2021 Oct 25.

BACKGROUND: Skeletal muscle AMP deaminase (AMPD1) regulates the concentration of adenine nucleotides during muscle contraction. We previously provided evidence that rabbit AMPD1 is composed by two HPRG 73 kDa subunits and two 85 kDa catalytic subunits with a dinuclear...

Regulation of skeletal muscle AMP deaminase. Carbethoxylation of His-51 belonging to the zinc coordination sphere of the rabbit enzyme promotes its desensitization towards the inhibition by ATP.

Biochimica et biophysica acta. General subjects

Ronca F, Raggi A.
PMID: 34710488
Biochim Biophys Acta Gen Subj. 2022 Feb;1866(2):130044. doi: 10.1016/j.bbagen.2021.130044. Epub 2021 Oct 25.

BACKGROUND: Skeletal muscle AMP deaminase (AMPD1) regulates the concentration of adenine nucleotides during muscle contraction. We previously provided evidence that rabbit AMPD1 is composed by two HPRG 73 kDa subunits and two 85 kDa catalytic subunits with a dinuclear...

Life-long sports engagement enhances adult erythrocyte adenylate energetics.

Scientific reports

Pospieszna B, Kusy K, Slominska EM, Zieliński J.
PMID: 34887502
Sci Rep. 2021 Dec 09;11(1):23759. doi: 10.1038/s41598-021-03275-y.

Regular physical activity reduces age-related metabolic and functional decline. The energy stored in adenine nucleotides (ATP, ADP, and AMP) is essential to enable multiple vital functions of erythrocytes and body tissues. Our study aimed to predict the rate of...

Evaluation of various solutions for small bowel graft preservation.

World journal of gastroenterology

Li YS, Li JS, Li N, Jiang ZW, Zhao YZ, Li NY, Liu FN.
PMID: 11819258
World J Gastroenterol. 1998 Apr;4(2):140-143. doi: 10.3748/wjg.v4.i2.140.

AIM:To elucidate the effect of various solutions for small bowel graft preservation in pigs under hypothermic storage.METHODS:The swine segmental small bowel graft was autotransplanted after it was preserved with lactated Ringer's (LR), Euro-Collins (EC), hyperosmolarity citrate adenine (HC-A) and...

Involvement of Elevated Intracellular and Extracellular ATP in the Regulation of Insulin Secretion: Therapeutic Targets in Non-Insulin-Dependent Diabetes Mellitus.

American journal of therapeutics

Rapaport E.
PMID: 11850664
Am J Ther. 1995 Apr;2(4):283-289. doi: 10.1097/00045391-199504000-00012.

Non-insulin-dependent diabetes mellitus (NIDDM) is a heterogeneous disease resulting primarily from a variety of pancreatic beta-cell disorders and insulin resistance. Whereas insulin resistance, which constitutes a defect in insulin action, increases the risk of developing NIDDM and, as such,...

Modification of Sulfhydryl Groups in the [gamma]-Subunit of Chloroplast-Coupling Factor 1 Affects the Proton Slip through the ATP Synthase.

Plant physiology

Evron Y, Pick U.
PMID: 12223880
Plant Physiol. 1997 Dec;115(4):1549-1555. doi: 10.1104/pp.115.4.1549.

A large proton leak not coupled to ATP synthesis (slip) occurs at alkaline pH through the chloroplast ATP synthase (Y. Evron, M. Avron [1990] Biochim Biophys Acta 1019: 115-120). The involvement of the ATP synthase [gamma]-subunit in the regulation...

Adenosine 5'-Triphosphate Metabolism in Red Blood Cells as a Potential Biomarker for Post-Exercise Hypotension and a Drug Target for Cardiovascular Protection.

Metabolites

Yeung PK, Kolathuru SS, Mohammadizadeh S, Akhoundi F, Linderfield B.
PMID: 29724022
Metabolites. 2018 May 02;8(2). doi: 10.3390/metabo8020030.

The importance of adenosine and ATP in regulating many biological functions has long been recognized, especially for their effects on the cardiovascular system, which may be used for management of hypertension and cardiometabolic diseases. In response to ischemia and...

The response of renal cortical adenine nucleotides to different flush-out solutions.

Irish journal of medical science

Keaveny TV, Cunningham SK, O'Boyle A.
PMID: 27518957
Ir J Med Sci. 1975 Dec;144(1):199. doi: 10.1007/BF02939013.

Changes in energy metabolism of canine renal cortex were investigated immediately after nephrectomy and following flushout with two solutions. Even a brief period of ischaemic produced a sharp fall in adenine nucleotide concentration: further fall was prevented by flushout...

Adenine nucleotides are apparently involved in the light-dark modulation of spinach-leaf nitrate reductase.

Planta

Kaiser WM, Spill D, Brendle-Behnisch E.
PMID: 24186663
Planta. 1992 Jan;186(2):236-40. doi: 10.1007/BF00196253.

Nitrate reductase (NR; EC 1.6.6.1) in spinach (Spinacia oleracea L. cv. Polka F1) leaves showed reversible modulation, being activated in the light and inactivated in the dark (t/2 = 20-30 min). The large changes in enzyme activity during light-dark...

Cellular effects of an anionic surfactant detected in V79 fibroblasts by different cytotoxicity tests.

Toxicology in vitro : an international journal published in association with BIBRA

Bianchi V, Fortunati E.
PMID: 20702278
Toxicol In Vitro. 1990;4(1):9-16. doi: 10.1016/0887-2333(90)90003-c.

Several cytotoxicity tests were employed to detect the cellular effects of low concentrations of the anionic surfactant linear alkylbenzene sulphonate (LAS). When added to growth medium containing 5% foetal calf serum, LAS did not affect V79 cell growth, nor...

Showing 25 to 36 of 164 entries