Article
Endocrinology & Metabolism
Xinzhi Li, Ying Yang, Zheng Chen
Summary: This study reveals the essential role of YTHDC1 in maintaining beta-cell function and suggests that its downregulation in type 2 diabetes may be attributed to lipotoxicity and chronic inflammation.
METABOLISM-CLINICAL AND EXPERIMENTAL
(2023)
Article
Nutrition & Dietetics
Haeng Jeon Hur, Hye Jeong Yang, Min Jung Kim, Kyun-Hee Lee, Myung-Sunny Kim, Sunmin Park
Summary: The study revealed that the development of T2DM in Asians is closely linked to the regulation of pancreatic beta-cell mass and function, with genetic impacts interacting with unhealthy lifestyle factors to further increase the risk of the disease.
Article
Cell Biology
Hitoshi Watanabe, Wen Du, Jinsook Son, Lina Sui, Shun-ichiro Asahara, Irwin J. Kurland, Taiyi Kuo, Takumi Kitamoto, Yasutaka Miyachi, Rafael de Cabo, Domenico Accili
Summary: Sulfonylureas are effective and affordable antidiabetic drugs, but chronic use leads to secondary failure. Cytochrome b5 reductase 3 (Cyb5r3) down-regulation is identified as a mechanism of secondary SU failure and can be successfully reversed. Cyb5r3 activators can rescue secondary SU failure and potentially rehabilitate SU use in diabetes.
SCIENCE TRANSLATIONAL MEDICINE
(2023)
Article
Endocrinology & Metabolism
Jonatan Bagger, Magnus F. G. Grondahl, Asger Lund, Jens J. Holst, Tina Vilsboll, Filip K. Knop
Summary: The study showed that GLP-1 potentiated the glucagon-suppressive effect of glucose in a dose-dependent manner in healthy individuals and patients with type 2 diabetes. However, patients with type 1 diabetes were insensitive to the glucagonostatic effects of both glucose and GLP-1.
Review
Biochemistry & Molecular Biology
Han-Chow E. Koh, Chao Cao, Bettina Mittendorfer
Summary: Plasma insulin clearance plays an important role in determining plasma insulin concentration and is closely related to excess adiposity, insulin sensitivity, and type 2 diabetes. The lower insulin clearance rate observed in people with obesity is not a compensatory response to insulin resistance, but directly linked to insulin sensitivity. Additionally, postprandial insulin clearance decreases due to increased delivery of insulin to tissues that clear insulin.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Review
Medicine, General & Internal
F. Frost, M. J. Walshaw, D. Nazareth
Summary: Cystic fibrosis (CF) is a common life-threatening inherited condition in the Caucasian population, with pulmonary disease being the main contributor to morbidity. While life expectancy has improved, new challenges have arisen, with an increasing prevalence of CF-related diabetes being a significant issue.
QJM-AN INTERNATIONAL JOURNAL OF MEDICINE
(2022)
Article
Nutrition & Dietetics
Emilia Papakonstantinou, Christina Oikonomou, George Nychas, George D. Dimitriadis
Summary: Chrononutrition, which involves controlling meal timing, meal sequencing, and dietary interventions, plays a significant role in regulating postprandial glycemia and insulin resistance. Weight loss, lifestyle interventions, and individualized carbohydrate reduction can effectively improve glycemic control and insulin sensitivity in preventing and treating type 2 diabetes.
Article
Biochemical Research Methods
Ishan Goswami, Eleonora de Klerk, Phichitpol Carnese, Matthias Hebrok, Kevin E. Healy
Summary: This article introduces a scalable, multiplexed islet beta MPS device for culturing and testing stem cell-derived enriched beta clusters (eBCs) in MPS, assessing their functionality and drug responses; confirming a glycolytic bottleneck and reactions to long-term drug exposure.
Article
Medicine, Research & Experimental
Dandan Xiao, Wenguang Chang
Summary: This article discusses the role of phospholipids in cell membrane structure as well as various cellular processes. Studies have found a relationship between certain phospholipids and insulin sensitivity. Additionally, phospholipids play a significant role in controlling insulin secretion, regulating insulin signaling transduction, and contributing to the progression of diabetic complications. PS supplements and PS-containing liposomes have shown protective effects against diabetes in animal studies.
MOLECULAR PHARMACEUTICS
(2023)
Article
Endocrinology & Metabolism
Thomas S. J. Crabtree, Tomas P. Griffin, Yew W. Yap, Parth Narendran, Geraldine Gallen, Niall Furlong, Iain Cranston, Ali Chakera, Chris Philbey, Muhammad Ali Karamat, Sanjay Saraf, Shafie Kamaruddin, Eleanor Gurnell, Alyson Chapman, Sufyan Hussain, Jackie Elliott, Lalantha Leelarathna, Robert E. J. Ryder, Peter Hammond, Alistair Lumb, Pratik Choudharyq, Emma G. Wilmot
Summary: The study found that switching to hybrid closed-loop (HCL) insulin delivery systems led to improvements in HbA1c, time in range, hypoglycemia, and quality of life in adults with type 1 diabetes, despite previous use of intermittently scanned continuous glucose monitoring and insulin pump therapy.
Article
Biochemistry & Molecular Biology
Xiaodong Ge, Xiaoyu He, Zhenshan Lin, Yuxian Zhu, Xiaoqin Jiang, Liyuan Zhao, Feng Zeng, Ligen Chen, Wei Xu, Tingting Liu, Zhigang Chen, Chao Zhao, Ying Huang, Bin Liu
Summary: By modifying the structure of luteolin, the compounds DAGL and DAGL · Cr were found to improve hyperglycemia in T2DM mice. They achieved this by improving pancreatic islet function, regulating serum and liver biochemical indicators, repairing damaged tissues, and regulating the PI3K/AKT-1 signaling pathway. Moreover, DAGL and DAGL · Cr also regulated the structure of the intestinal microbiota and increased the content of short-chain fatty acids (SCFA) in the feces, alleviating the symptoms of hyperglycemia in T2DM mice.
Article
Endocrinology & Metabolism
Sofie Haedersdal, Asger Lund, Elisabeth Nielsen-Hannerup, Henrik Maagensen, Julie L. Forman, Jens J. Holst, Filip K. Knop, Tina Vilsboll
Summary: This study investigated the effect of glucagon receptor antagonism on gastrointestinal-mediated glucose disposal, incretin effect, and glucose excursions in patients with type 2 diabetes and controls. The results showed that the glucagon receptor antagonist had no effect on impaired gastrointestinal-mediated glucose disposal or incretin effect in both groups, but unexpectedly reduced oral glucose tolerance.
EUROPEAN JOURNAL OF ENDOCRINOLOGY
(2022)
Article
Cell Biology
Klev Diamanti, Marco Cavalli, Maria J. Pereira, Gang Pan, Casimiro Castillejo-Lopez, Chanchal Kumar, Filip Mundt, Jan Komorowski, Atul S. Deshmukh, Matthias Mann, Olle Korsgren, Jan W. Eriksson, Claes Wadelius
Summary: Environmental and genetic factors contribute to defects in pancreatic islets and insulin resistance in type 2 diabetes (T2D). Through proteomic analysis of multiple metabolic tissues, we identified tissue-specific metabolic dysregulations in T2D, including inflammatory, immune, and vascular alterations.
CELL REPORTS MEDICINE
(2022)
Article
Endocrinology & Metabolism
Mariam Alatrach, Christina Agyin, Carolina Solis-Herrera, Olga Lavryneko, John Adams, Amalia Gastaldelli, Curtis Triplitt, Ralph A. DeFronzo, Eugenio Cersosimo
Summary: This study found that SGLT2 inhibitors have an effect on the increase of endogenous glucose production (EGP) in patients with type 2 diabetes after oral glucose intake. Despite elevated plasma insulin and glucagon, the stimulation of EGP was observed, suggesting that additional factors may be involved.
Article
Medicine, General & Internal
Stefan Zoltan Lutz, Joerg Hennenlotter, Andras Franko, Corinna Dannecker, Louise Fritsche, Konstantinos Kantartzis, Robert Wagner, Andreas Peter, Norbert Stefan, Andreas Fritsche, Tilman Todenhoefer, Arnulf Stenzl, Hans-Ulrich Haering, Martin Heni
Summary: The study found that patients with prostate cancer have higher fasting blood glucose levels and insulin resistance, with no significant changes in insulin secretion. Meanwhile, the serum triglyceride levels of cancer patients are lower, but there is an increase in adrenal steroid biosynthesis.
JOURNAL OF CLINICAL MEDICINE
(2022)
Article
Biochemistry & Molecular Biology
Siva Santhiya Arul, Brinda Balakrishnan, Savithri S. Handanahal, Sangita Venkataraman
Summary: Viral nanoparticles are self-assembling delivery systems used for vaccines and therapeutic agents. They have improved biocompatibility and are widely used in various biomedical applications. However, large-scale production of VNPs still faces challenges.
Article
Biochemistry & Molecular Biology
Wisely Chua, Carl O. Marsh, Si En Poh, Winston LC. Koh, Melody Li Ying Lee, Li Fang Koh, Xin-Zi Emily Tang, Peter See, Zheng Ser, Shi Mei Wang, Radoslaw M. Sobota, Thomas L. Dawson Jr, Yik Weng Yew, Steven Thng, Anthony J. O'Donoghue, Hazel H. Oon, John E. Common, Hao Li
Summary: In this study, the gene expression of enzymes secreted by Malassezia globosa in the skin was investigated using targeted RNA sequencing. The study found that the expression of these enzymes is regulated by the fungus's environment and differs significantly from healthy skin sites. Additionally, a pseudoprotease MGL_3331 was identified to elicit an immune reaction in patients with atopic dermatitis. This highlights the importance of studying fungal proteins in physiologically relevant environments and their role in host immunity.
Article
Biochemistry & Molecular Biology
Belisa Parmeggiani, Marian Flores Signori, Cristiane Cecatto, Marina Rocha Frusciante, Manuela Bianchin Marcuzzo, Debora Guerini Souza, Rafael Teixeira Ribeiro, Bianca Seminotti, Diogo Onofre Gomes de Souza, Cesar Augusto Joa o Ribeiro, Moacir Wajner, Guilhian Leipnitz
Summary: Non ketotic hyperglycinemia (NKH) is a disorder caused by mutations in the genes encoding glycine cleavage system proteins, leading to severe neurodegeneration and white matter alterations. The study found that glycine affects myelin structure, glutamatergic system, and induces oxidative stress in neonatal rats and MO3.13 oligodendroglial cells.
Review
Biochemistry & Molecular Biology
Marie Rose Ndella Thiaw, Pascal Gantet
Summary: Mini zinc fingers play important roles in plant development, including control of cell division and expansion, meristem state transition, and growth and organ development. They have diverse modes of action, such as direct gene activation, interaction with specific transcription factors, and aggregation of protein complexes for chromatin remodeling. Further research is needed to explore their wider range of biological functions and their involvement in biotic and abiotic stress responses.
Article
Biochemistry & Molecular Biology
Shao-Jui Lai, Takahiro Kameda, Maasa Morita, Yuka Yamagata, Kaoruko Nishizaka, Yuna Horiuchi, Yukihiro Kobayashi, Yoko Usami, Jun-Jen Liu, Takeshi Kasama, Minoru Tozuka, Ryunosuke Ohkawa
Summary: In this study, the co-modification and impact of chymase and MPO on HDL were investigated. Sequential treatment with MPO and chymase generated two novel apoA-I fragments from HDL, one of which has a specific immunological property and can be used to predict patients with normal HDL-C levels and cardiovascular diseases.
Article
Biochemistry & Molecular Biology
Xiao-Mi Sun, Asami Yoshida, Takuya Ishii, Yan-Rong Jiang, Yi-Li Gao, Mikinori Ueno, Katsuya Hirasaka, Kiyoshi Osatomi
Summary: This study found that infection with the causative bacteria of edwardsiellosis, Edwardsiella tarda NUF251, leads to the production of superoxide radicals, causing oxidative stress. The research on the Jfsod1 gene suggests that the transcription factor NF-IL6 plays a significant role in upregulating the transcriptional activity of the gene in response to oxidative stress induced by NUF251 infection.
Article
Biochemistry & Molecular Biology
Shane M. Carey, Sean P. Kearns, Matthew E. Millington, Gregory S. Buechner, Beda E. Alvarez Jr, Leily Daneshian, Brendan Abiskaroon, Maksymilian Chruszcz, Edward L. D'Antonio
Summary: The importance of F337 in TcGlcK was investigated using the hole mutagenesis approach, revealing its key interactions with aromatic tail groups in inhibitor molecules. Mutants retaining activity and structural similarity were obtained, suggesting the possibility of TcHxK existing as a monomer lacking the F337 residue. Similar D-glucosamine inhibitors may bind less strongly to TcHxK due to the absence of van der Waals contacts from residue side chains.
Article
Biochemistry & Molecular Biology
Catia Barria, Diogo Athayde, Guillem Hernandez, Leonor Fonseca, Jorge Casinhas, Tiago N. Cordeiro, Margarida Archer, Cecilia M. Arraiano, Jose A. Brito, Rute G. Matos
Summary: Ribonucleases play a crucial role in RNA regulation by processing, degrading, and quality controlling cellular transcripts. Campylobacter jejuni, the main cause of human gastroenteritis, relies on the exoribonuclease PNPase (CjPNP) for low-temperature survival, virulence factor synthesis, and swimming, cell adhesion/invasion, and chick colonization abilities. The crystallographic structure of CjPNP, along with SAXS analysis, confirms its trimeric arrangement and provides insight into domain arrangement and flexibility. Mutations in highly conserved residues reveal unexpected RNA degradation activity even under conditions favoring polymerization. These findings have significant implications for the development of strategies to combat C. jejuni infections.
Article
Biochemistry & Molecular Biology
Elvira R. Shaykhutdinova, Maria S. Severyukhina, Inna V. Kholoshenko, Elena A. Gondarenko, Irina V. Shelukhina, Elena V. Kryukova, Alina M. Ismailova, Elena S. Sadovnikova, Igor A. Dyachenko, Arkady N. Murashev, Victor I. Tsetlin, Yuri N. Utkin
Summary: Evidence suggests that activating nicotinic acetylcholine receptors (nAChRs) can reduce cardiac injury caused by ischemia and reperfusion. In this study, the expression of a4, a6, and a132 nAChR subunits in the rat heart's left ventricle was demonstrated. The nAChR agonists cytisine and varenicline, commonly used for nicotine addiction treatment, were found to significantly reduce myocardial ischemia-reperfusion injury, with varenicline showing greater protection. The presence of a4132, a7, and/or a6132-containing receptors suggests that the protective effect of varenicline may be mediated by these subunits. These findings indicate a potential new use for cytisine and varenicline as cardioprotective agents.
Article
Biochemistry & Molecular Biology
Xinhai Xiong, Wenjie Chen, Cheng Chen, Qi Wu, Chaopeng He
Summary: This article summarizes the important roles of Cx43 in disease development from the perspective of subcellular localization and provides new ideas for Cx43 as a therapeutic target and the search for related pathological mechanisms.
Article
Biochemistry & Molecular Biology
Veronica Bastos, Simone Pascoal, Kamila Lopes, Marcia Mortari, Helena Oliveira
Summary: Cancer, especially melanoma, is a major global health problem due to its metastatic capacity, treatment resistance, and high mortality rates. The Chartergellus-CP1 peptide isolated from Chartergellus communis wasp venom showed selective cytotoxicity towards melanoma cell lines, inducing apoptosis, cell cycle impairment, and intracellular ROS increase.
Article
Biochemistry & Molecular Biology
Charlotte Claeyssen, Nathan Bulangalire, Bruno Bastide, Onnik Agbulut, Caroline Cieniewski-Bernard
Summary: Maintenance of striated muscle tissue relies on a dynamic network of protein-protein interactions. Desmin intermediate filaments play a crucial role in heart and skeletal muscle by maintaining cell structure and contributing to various cellular processes. The assembly of desmin intermediate filaments requires aB-crystallin, which is involved in multiple cellular functions.
Article
Biochemistry & Molecular Biology
Dhritiman Dey, Adhiraj Dasgupta, Dipanjan Ghosh, Oindrila Bhattacharjee, Abhrajyoti Ghosh, Ayae Honda, Dhrubajyoti Chattopadhyay
Summary: This study successfully identified host factors that interact with Chandipura Virus (CHPV) and play a critical role in infection, including A2M, LRP1, and GRP78. Knocking out A2M has a severe effect on viral infection, indicating the potential role of these host proteins in viral entry into host cells.
Article
Biochemistry & Molecular Biology
Anna Dotsenko, Igor Sinelnikov, Aleksandra Rozhkova, Ivan Zorov, Arkady Sinitsyn
Summary: Xylanases play important roles in various industrial applications, such as feed additives, pulp and paper bleaching, and the production of bread, food, and drinks. Xylanases from the GH10 family show high thermostability and resistance to protein inhibitors, making them promising candidates for these processes. This study successfully improved the thermostability and enzymatic activity of GH10 xylanase, which could enhance its effectiveness as a feed additive and during pulp and paper bleaching.
Article
Biochemistry & Molecular Biology
M. Jaquet, M. Bengue, K. Lambert, G. Carnac, D. Misse, C. Bisbal
Summary: Changes to our environment have led to the emergence of human pathogens such as chikungunya virus, which is now a major public health concern. In this study, the interconnection between skeletal muscle cells metabolism, their differentiation stage, and the infectivity of chikungunya virus was investigated. The results showed that chikungunya virus infectivity is dependent on cell differentiation and metabolism and that the virus interferes with cellular metabolism.
