Results 101 to 110 of about 225,866 (281)

EFFECTS OF INSULIN, GLUCAGON, AND INSULIN/GLUCAGON INFUSIONS ON LIVER MORPHOLOGY AND CELL DIVISION AFTER COMPLETE PORTACAVAL SHUNT IN DOGS [PDF]

open access: yes, 1976
Insulin, glucagon, and insulin/glucagon mixtures have been infused for four days into the left portal vein of dogs after portacaval shunt. In the left but not the right liver lobes, insulin alone reduced atrophy, preserved hepatocyte ultrastructure, and ...
Blackard   +36 more
core   +1 more source

A Cold Stress‐Activated Endocrine Sentinel Chemical Hormone Promotes Insect Survival via Mitochondrial Adaptations Through the Adipokinetic Hormone Receptor

open access: yesAdvanced Science, EarlyView.
Seasonal cold adaptation is vital for insect survival, yet the molecular mechanisms linking diapause to mitochondrial resilience remain largely unresolved. We identify ascaroside C9 (asc‐C9) as a key endocrine signal that enhances diapause survival during cold stress by activating the AKHR–PGC1α–UCP4 axis, thereby driving cold‐induced lipolysis and ...
Jiao Zhou   +14 more
wiley   +1 more source

Mitochondrial dysfunction and oxidative stress in patients with chronic kidney disease. [PDF]

open access: yes, 2016
Mitochondria abnormalities in skeletal muscle may contribute to frailty and sarcopenia, commonly present in patients with chronic kidney disease (CKD).
Billings, Frederic T   +9 more
core   +1 more source

Skeletal Muscle HSF1 Alleviates Age‐Associated Sarcopenia and Mitochondrial Function Decline via SIRT3‐PGC1α Axis

open access: yesAdvanced Science, EarlyView.
Aged HSF1 muscle‐specific knockout mice show deteriorated muscle atrophy and metabolic dysfunction, while active HSF1 overexpression improves muscle function via activating SIRT3 to deacetylate both PGC1α1 and PGC1α4, which boosts mitochondrial function and muscle hypertrophy in a fiber‐type specific manner, and induces FNDC5/Irisin for tissue ...
Jun Zhang   +18 more
wiley   +1 more source

The ultrastructure of calcareous cirratulid (Polychaeta, Annelida) tubes [PDF]

open access: yesEstonian Journal of Earth Sciences, 2009
The entire tube wall of Dodecaceria caulleryi and D. coralii is composed of thin calcareous lamellae with a spherulitic prismatic ultrastructure. In Diplochaetetes mexicanus the tube ultrastructure is similar, but contains also some lamellae with a ...
Vinn, Olev
doaj  

Ultrastructure of the spermatozoon of the Chinese water snake, Myrrophis (Enhydris) chinensis (Reptilia: Homalopsidae)

open access: yesThe European Zoological Journal, 2018
Identifying the polymorphism of the spermatozoon ultrastructure of squamates is vital for improving the accuracy of phylogenic analyses. Multiple studies have been conducted to distinguish the similarities and differences among the sperms of squamates ...
S.-L. Hao, Y.-P. Zhang
doaj   +1 more source

Isolation of equine endothelial cells and life cell angiogenesis assay [PDF]

open access: yes, 2014
Arterial or venous thromboses are frequent clinical complications with the risk of fatal progression. Recent studies suggest the disruption of angiogenesis in the course of thrombus resolution as the underlying pathomechanism.
Dietze, Kathrin   +5 more
core   +1 more source

A Biomarker‐Driven Ovary–Endometrium Organ‐on‐a‐Chip Mimicking 3D Multicellular Complexity and Menstrual Cyclicity for Predicting Reproductive Toxicity

open access: yesAdvanced Science, EarlyView.
We present a dual‐organ, biomarker‐integrated ovaryendometrium organ‐on‐a‐chip that recapitulates 3D tissue complexity, menstrual cycle dynamics, and hormonal crosstalk. This platform enables real‐time, cell‐typespecific fluorescent readouts of reproductive toxicity using ANGPTL4 and SERPINB2 as early‐response reporters.
Soo‐Rim Kim   +6 more
wiley   +1 more source

Ferroptosis‐Mediated Hippocampal Neuronal Loss Post‐mTBI: Chromatin Accessibility Profiling and Single‐Nucleus Transcriptomics

open access: yesAdvanced Science, EarlyView.
Hippocampal single ‐nucleus transcriptomes and chromatin accessibility after mild traumatic brain injury reveal dentate granule neuron vulnerability driven by ferroptosis. The c‐Jun–Tmsb4x–Slc2a2 axis modulates lipid peroxidation and iron dysregulation.
Manrui Li   +13 more
wiley   +1 more source

Mapping residual organics and carbonate at grain boundaries and in the amorphous interphase in mouse incisor enamel

open access: yesFrontiers in Physiology, 2015
Dental enamel has evolved to resist the most grueling conditions of mechanical stress, fatigue, and wear. Adding insult to injury, it is exposed to the frequently corrosive environment of the oral cavity.
Lyle M Gordon, Derk eJoester
doaj   +1 more source

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