Protein synthesis intensity in the tissue of various portions of the brain of rats pre-exposed to 10 min systemic circulation arrest was studied with the use of 3H-leucin, a protein synthesis labeled precursor, and compared with that in intact animals. Protein synthesis intensity in the brain of resuscitated animals was found to correlate with the degree of their neurologic status recovery. In rapidly recovering animals a significant intensification of protein synthesis is observed on day 4 after resuscitation in the sensorimotor cortex, hippocampus, and cerebellum. In the animals whose resuscitation was not so smooth this process develops only in the hippocampus and the intermedial and lateral portions of the cerebellum. In patients with disturbed neurologic status protein synthesis intensity was unchanged in all the examined portions of the brain. The authors suggest that protein synthesis activation phase is an obligatory stage in full-value neurologic recovery of resuscitated animals.
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Cytotherapy
January 2025
Regenerative Medicine Laboratory, Dr. D. Y. Patil Dental College and Hospital, Dr. D. Y. Patil Vidyapeeth, Pimpri, Pune 411018, India.
Background Aims: The clinical translation of mesenchymal stromal cell secretome (MSC-S) has been challenging owing to a lack of appropriate methods in downstream processing. Dialysis is an age-old method of protein purification by the exchange of small molecules through a semi-permeable membrane. In this study, we investigated the potential of three forms of umbilical cord-derived MSC secretome (UC-MSC-S)-native (S), dialyzed (DS), and lyophilized (LDS)-for wound healing applications.
View Article and Find Full Text PDFTrends Biotechnol
January 2025
College of Biological Sciences, China Agricultural University, Beijing 100193, China. Electronic address:
Engineering nitrogen fixation in cereals could reduce usage of chemical nitrogen fertilizers. Here, a nitrogenase biosynthesis pathway comprising 13 genes (nifB nifH nifD nifK nifE nifN nifX hesA nifV nifS nifU groES groEL) was introduced into rice by transforming multigene vectors and subsequently by sexual crossing between transgenic rice plants. Genome sequencing analysis revealed that 13 nif genes in F hybrid rice lines L12-13 and L8-17 were inserted at two loci on rice chromosome 1.
View Article and Find Full Text PDFJ Dermatol Sci
January 2025
Department of Biochemistry, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan; Department of Frontier Science and Interdisciplinary Research, Faculty of Medicine, Kanazawa University, Ishikawa, Japan. Electronic address:
Background: Melanocytes protect the body from ultraviolet radiation by synthesizing melanin. Tyrosinase, a key enzyme in melanin production, accumulates in the endoplasmic reticulum (ER) during melanin synthesis, potentially causing ER stress. However, regulating ER function for melanin synthesis has been less studied than controlling Tyrosinase activity.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Hunan Key Laboratory for Breeding of Clonally Propagated Forest Trees, Hunan Academy of Forestry, Changsha, Hunan 410004, China. Electronic address:
B-box proteins (BBX) play pivotal roles in the regulation of numerous growth and developmental processes in plants, particularly the light-mediated biosynthesis of pigments. To elucidate the role of BBX transcription factors in the anthocyanin biosynthetic pathway of Lagerstroemia indica leaves, this study identified 41 BBX genes in the L. indica genome.
View Article and Find Full Text PDFFree Radic Biol Med
January 2025
Special Centre for Molecular Medicine, Jawaharlal Nehru University, New Delhi-110067. Electronic address:
Iron accumulation and mitochondrial dysfunction in astroglia are reported in Parkinson's disease (PD). Astroglia control iron availability in neurons in which dopamine (DA) synthesis is affected in PD. Despite their intimate relationship the role of DA in astroglial iron homeostasis is limited.
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