When polyclonal insulin antibodies were preincubated with either adipose tissue from hypophysectomized rats or adipocytes from normal rats, human growth hormone failed to stimulate glucose oxidation. Removal of insulin from adipocytes through incubation with pyruvate at pH 7.0, followed by washing three times, also abolished subsequent in vitro insulin-like action of hGH. Administration of the same insulin antibody to hypophysectomized rats 30 minutes prior to injection of hGH did not inhibit the insulin-like activity of the hGH as measured by its ability to decrease serum glucose and non-esterified fatty acid levels. It is concluded that the in vitro promotion of glucose oxidation by hGH requires insulin. Because of the uncertainty of complete removal of insulin in intact animals, such a conclusion cannot be made regarding in vivo insulin-like action of hGH.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1055/s-2007-1011854 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Efficacy of cartilage-targeted IGF-1 in a mouse model of growth hormone insensitivity.
Front Endocrinol (Lausanne)
January 2025
Section on Growth and Development, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institute of Health, Bethesda, MD, United States.
Recombinant human IGF-1 is used to treat severe primary IGF-1 deficiency, but this treatment requires twice-daily injection, often does not fully correct the growth deficit, and has important off-target effects. We therefore sought to target IGF-1 to growth plate cartilage by generating fusion proteins combining IGF-1 with single-chain human antibody fragments that target matrilin-3, a cartilage matrix protein. We previously showed that this cartilage-targeting IGF-1 fusion protein (CV1574-1) promoted growth plate function in a GH-deficient (lit) mouse model.
View Article and Find Full Text PDFMethyltransferase-like 3 mediates m6A modification of heme oxygenase 1 mRNA to induce ferroptosis of renal tubular epithelial cells in acute kidney injury.
Free Radic Biol Med
January 2025
Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan Province, China; Research Institute of Nephrology, Zhengzhou University, Zhengzhou, Henan province, China; Henan Province Research Center for Kidney Disease, Zhengzhou, Henan Province, China; Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, Henan Province, China; Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, Henan Province, China; Innovation Center of Basic Research for Metabolic-Associated Fatty Liver Disease, Ministry of Education of China, Zhengzhou, Henan Province, China. Electronic address:
Acute kidney injury (AKI) involves a series of syndromes characterized by a rapid increase in creatinine levels. Ferroptosis, as an iron-dependent mode of programmed cell death, reportedly participates in the pathogenesis of AKI. Methyltransferase-like 3 (METTL3)-mediated m6A modification has been recently associated with various kidney diseases; however, the mechanism of METTL3 crosstalk with the molecules involved in ferroptosis is not clearly understood.
View Article and Find Full Text PDFBackground: Fibroblast growth factor 21 (FGF21) and Methyltransferase-like 14 (METTL14) have been identified to be involved in spinal cord injury (SCI). However, whether FGF21 functioned in SCI via METTL14-induced N6-methyladenosine (m6A) modification remains unclear.
Materials And Methods: PC12 cells were exposed to lipopolysaccharide (LPS) in vitro.
Adrenomedullin 2 attenuates anxiety-like behaviors by increasing IGF-II in amygdala and re-establishing blood-brain barrier.
Transl Psychiatry
January 2025
Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan, China.
Anxiety disorder, a prevalent mental health issue, is one of the leading causes of disability worldwide. Damage to the blood-brain barrier (BBB) is implicated in anxiety, but its regulatory mechanisms remain unclear. Herein, we show that adrenomedullin 2 (ADM2), a novel angiogenic growth factor, alleviates autistic and anxiety-like behaviors in mice.
View Article and Find Full Text PDFObjective: Our study aimed to investigate the therapeutic effects of the Kuntai capsule in improving ovarian function in rats with transplantation of cryopreserved ovary.
Methods: Two mice ovary cell lines were cultured with Kuntai capsule decoction, and cell apoptosis was detected by MTT assay. A total of 90 SPF Sprague Dawley rats were included in this study.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!