Synthesis of proteins and RNA has been studied by means of labeled precursors of 14C-labeled amino acids and [14C]orotic acid in liver cells of hibernating, arousing, and active ground squirrels (Citellus undulatus). The investigations indicate that cycloheximide (CHI)-inhibited protein synthesis in liver cells of hibernating ground squirrels may occur on preexisting polyribosomes. A low level of protein synthesis in this state results not only from the Arrhenius dependence, but also from the dissociation of polyribosomes into monosomes. During arousal there is an intensive assembly of polyribosomes. This occurs even with the inhibition of RNA synthesis by actinomycin D, testifying to the presence of a pool of iRNA in liver cells, which is necessary to activate translation. The intensity of protein synthesis in arousal is also influenced by the activation of transcription.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0011-2240(92)90071-9 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Therapeutic Potential and Mechanistic Insights of a Novel Synthetic α-Lactalbumin-Derived Peptide for the Treatment of Liver Fibrosis.
J Clin Exp Hepatol
December 2024
Biochemistry and Molecular Biology Department, Theodor Bilharz Research Institute, Giza, Egypt.
Background: Liver fibrosis is a serious global health issue, but current treatment options are limited due to a lack of approved therapies capable of preventing or reversing established fibrosis.
Aim: This study investigated the antifibrotic effects of a synthetic peptide derived from α-lactalbumin in a mouse model of thioacetamide (TAA)-induced liver fibrosis.
Methods: analyses were conducted to assess the physicochemical properties, pharmacophore features, and docking interactions of the peptide.
Clinical efficacy and safety evaluation of traditional Chinese medicine for nourishing yin and Replenishing qi in combination with PD-1/PD-L1 inhibitors in the treatment of NSCLC patients: a meta-analysis.
Toxicol Res (Camb)
February 2025
Respiratory Medicine, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, 71 Baoshan North Road, Yunyan District, Guiyang Guizhou 550001, China.
To examine the therapeutic effectiveness and safety of traditional Chinese medicine in conjunction with PD-1/PD-L1 inhibitors for nourishing yin and replenishing qi in patients with non-small cell lung cancer. A systematic search was conducted across seven electronic databases, namely PubMed, Cochrane Library, Excerpt Medica Database, Web of Science, Chinese Biomedical Literature Database, China National Knowledge Infrastructure, and Wan-fang Database, to identify eligible studies from 2,000 to 2,023. This study includes a total of 14 randomized controlled clinical trials, with 514 patients in the TCM combo therapy group and 506 patients in the control group.
View Article and Find Full Text PDFManagement of intrahepatic cholangiocarcinoma: a review for clinicians.
Gastroenterol Rep (Oxf)
January 2025
Department of Health Sciences, University of Piemonte Orientale, Novara, Italy.
Intrahepatic cholangiocarcinoma (iCCA) is an aggressive liver malignancy that arises from second-order biliary epithelial cells. Its incidence is gradually increasing worldwide. Well-known risk factors have been described, although in many cases, they are not identifiable.
View Article and Find Full Text PDFNovel multipotent conjugate bearing tacrine and donepezil motifs with dual cholinergic inhibition and neuroprotective properties targeting Alzheimer's disease.
RSC Med Chem
January 2025
Área de Neurofisiología celular, Instituto de Biología, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia Medellín Colombia
In this work, we developed potential multifunctional agents to combat Alzheimer's disease. According to our strategy, fragments of tacrine and donepezil were merged in a unique hybrid structure. After successfully synthesizing the compounds, they were evaluated for their dual AChE/BuChE inhibitor potential and neuroprotector response using a glutamate-induced excitotoxicity model.
View Article and Find Full Text PDFMechanisms of Cancer-Induced Bone Pain.
J Pain Res
January 2025
Department of Anesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, People's Republic of China.
Bone is a common site of advanced cancer metastasis, second only to the lungs and liver. Cancer-induced bone pain (CIBP) is a persistent and intense pain that is caused by a combination of inflammatory and neuropathic factors. As CIBP progresses, the degree of pain intensifies.
View Article and Find Full Text PDFWant 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!