Results 31 to 40 of about 620,224 (255)

Some effects of insect hormones on Na(^+), K(^+)-ATPase and fluid secretion by the malpighian tubules of locusta migratoria L [PDF]

open access: yes, 1981
A study has been made on the effects of insect hormones on fluid secretion by the Malpighian tubules of Locusta, and on the Na(^+), K(^+)- ATPase activity in microsomal preparations of the tubules.
Donkin, Julie Ellison
core  

Organoids in pediatric cancer research

open access: yesFEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Biochemical, cytochemical localization and physiological studies on Malpighian tubules of Locusta Migratoria L. [PDF]

open access: yes, 1997
Specific inhibitors of protein kinase A (PKA), Rp-cAMP, protein kinase C (PKC), chelerythrine and staurosporine, and protein phosphatase 1 and 2A okadaic acid, inhibited fluid secretion whilst corpora cardiaca (CC) extract and cAMP were found to ...
Ali Al-Fifi, Zarrag, Al-Fifi, Z.I.A.
core  

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

open access: yesFEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise   +5 more
wiley   +1 more source

Proximal convoluted tubules of the rats kidney--a stereological analysis [PDF]

open access: yes, 2003
Background and Purpose: The aim of this work was to order quantitative parameters of the proximal convoluted tubules (PCT) in the normal rat kidney cortex. Volume density (VV), both surface and specific surface density toward interstitium (SVi and SVi/VV)
Selma Aličelebić, Aličelebić, Selma
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

open access: yesMolecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Central role of the proximal tubular αKlotho/FGF receptor complex in FGF23-regulated phosphate and vitamin D metabolism

open access: yesScientific Reports, 2018
Fibroblast growth factor 23 (FGF23) plays critical roles in phosphate handling and vitamin D metabolism in the kidney. However, the effector cells of FGF23 in the kidney remain unclear.
Ai Takeshita   +4 more
doaj   +1 more source

Studies on ion movement in malpighian tubules of locusta migratoria l. with particular reference to electrical events [PDF]

open access: yes, 1987
Intracellular microelectrodes have been used in conjunction with ion substitution, and agonists and inhibitors of known transport processes to investigate the mechanisms whereby ions cross the basal and apical cell membranes of the Malpighian tubules of ...
Baldrick, Paul
core  

A technique to reduce fixation artifacts to kidney proximal tubules [PDF]

open access: yes, 1984
The preservation of proximal tubules in a state most closely resembling their in vivo morphology requires careful attention to fixation procedures. Conventional excision-immersion fixation is known to result in swelling of the cells lining proximal ...
Coffey, Aline K., Andrews, Peter M.
core   +1 more source

Pre‐Regenerative Endothelial Cells Empowered by Antler Blood Exosomes Orchestrate Peripheral Nerve Repair

open access: yesAdvanced Science, EarlyView.
The pre‐regenerative vascular niche (PVN) is essential for nerve repair, yet its endothelial blueprint remains unclear. We identified angiogenic ECs (AECs) as the dominant pre‐regenerative subset and found that antler blood–derived exosomes (AB‐EXO) promote repair via IMP3.
Jinsheng Huang   +11 more
wiley   +1 more source

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