Results 81 to 90 of about 273,677 (294)

Real‐Time and High‐Resolution NIR‐II‐L Imaging of Netrin‐1‐Mediated Neurovascular Coupling Driven by Dose‐Dependent Electroacupuncture

open access: yesAdvanced Science, EarlyView.
Disrupted neurovascular coupling contributes to ovarian dysfunction in polycystic ovary syndrome. Using near‑infrared II long‑wavelength imaging, this study visualizes how electroacupuncture dynamically regulates ovarian blood vessels in vivo. Immediate and cumulative stimulation elicit distinct vascular responses via a Netrin‐1 dependent mechanism ...
Yicong Wang   +15 more
wiley   +1 more source

CCR8 is expressed by post-positive selection CD4-lineage thymocytes but is dispensable for central tolerance induction.

open access: yesPLoS ONE, 2018
Following positive selection, thymocytes migrate into the medulla where they encounter diverse self-antigens that induce central tolerance. Thymocytes expressing T cell receptors (TCRs) with high affinity for self-antigens displayed by medullary antigen ...
Hiran M Thyagarajan   +3 more
doaj   +1 more source

Association of medullary sponge kidney and hyperparathyroidism with RET G691S/S904S polymorphism: a case report

open access: yesJournal of Medical Case Reports, 2018
Background Medullary sponge kidney is a rare renal malformation, which usually manifests as nephrocalcinosis, renal tubular acidosis, and recurrent urinary tract infections.
Muhammad Usman Janjua   +4 more
doaj   +1 more source

Development‐based In Vivo Bioreactor Strategy for Challenging Senescent Bone Reconstruction

open access: yesAdvanced Science, EarlyView.
We present a development‐based in vivo bioreactor strategy to generate rejuvenated bone grafts (vBR‐Bone) within aged hosts. By enclosing vBR‐Bone fragments within an asymmetric biomimetic periosteum, segmental femoral defects in aged mice were successfully repaired within 6 weeks. Mechanistically, the multifactors of vBR‐Bone reconstitute a remodeling
Wenchao Zhang   +9 more
wiley   +1 more source

Two‐Nanosensor Electrochemical Profiling of Catecholamine Vesicle Interactions With Acute and Chronic Stress Granules in Living Cells

open access: yesAngewandte Chemie, EarlyView.
A two‐nanosensor electrochemical strategy quantitatively distinguishes reactive oxygen species (ROS) in stress granules (SGs) from catecholamines in vesicles inside living cells. Chronic SGs formed under prolonged stress show elevated ROS and slower release, consistent with SG aging, and promote neurotransmitter loading likely through vesicle fusion ...
Hui Gu   +3 more
wiley   +2 more sources

Age, kidney function, and risk factors associate differently with cortical and medullary volumes of the kidney

open access: yesKidney International, 2013
The kidney atrophies in patients with advanced chronic kidney disease (CKD) but factors influencing kidney size in normal adults are less clear. To help define this we measured kidney volumes on contrast-enhanced CT images from 1344 potential kidney ...
Xiangling Wang   +7 more
semanticscholar   +1 more source

Medullary Thyroid Carcinoma Without Calcitonin: A Case Linking Ultimobranchial Bodies to Tumor Evolution

open access: yesPathophysiology
Medullary thyroid carcinoma (MTC) is a thyroid tumor with neuroendocrine properties purportedly derived from C-cells. The biochemical activity of medullary thyroid carcinoma includes the production of calcitonin and carcinoembryonic antigen, which are ...
Ion Prisneac   +3 more
doaj   +1 more source

Deciphering the Impact of RAC1‐SPTAN1 in ARPKD Cystogenesis Using Multifaceted Models

open access: yesAdvanced Science, EarlyView.
Distal/connecting tubules expressing SLC8A1 have been suggested as a potential origin of ARPKD cysts. SPTAN1 has been identified as a key molecule in ARPKD cyst formation. Restoring SPTAN1 in PKHD1−/− organoids reduced cyst formation, normalized calcium levels, and decreased RAC1/c‐FOS expression, highlighting SPTAN1's role in ARPKD and the potential ...
Shohei Kuraoka   +9 more
wiley   +1 more source

Aire-dependent production of XCL1 mediates medullary accumulation of thymic dendritic cells and contributes to regulatory T cell development

open access: yesJournal of Experimental Medicine, 2011
Aire regulates medullary epithelial cell production of XCL1, a chemoattractant for XCR1-expressing thymic DCs whose presence in the medulla contributes to the generation of T reg cells.
Y. Lei   +11 more
semanticscholar   +1 more source

Hypercalcitoninemia is not pathognomonic of medullary thyroid carcinoma

open access: yesClinics, 2009
Hypercalcitoninemia has frequently been reported as a marker for medullary thyroid carcinoma. Currently, calcitonin measurements are mostly useful in the evaluation of tumor size and progression, and as an index of biochemical improvement of medullary ...
Sergio PA Toledo   +5 more
doaj   +1 more source

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