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JOURNAL ARTICLE
Soheila Asadi, Zohreh Rahimi, Maryam Kohsari, Fatemeh Babajani, Mohammad Amiri, Nazanin Jalilian, Rozita Naseri, Lida Haghnazari
PURPOSE: Oxidative stress in chronic hyperglycemia could injure the tissues and onset of diabetes-related complications like retinopathy and neuropathy. This study investigates the association between methylenetetrahydrofolate reductase (MTHFR) and glutathione peroxidase (GPx) genetic variants with these complications. METHODS: In this case-control study, 400 individuals, including 100 healthy subjects and 300 patients with type 2 diabetes mellitus (T2DM) in three subgroups: with retinopathy(n = 100), with neuropathy(n = 100), and without complication (n = 100) from West Iran, were studied...
April 29, 2024: Molecular Biology Reports
#2
JOURNAL ARTICLE
Karen Libberecht, Nathalie Dirkx, Tim Vangansewinkel, Wendy Vandendries, Ivo Lambrichts, Esther Wolfs
BACKGROUND: Dysregulation of the endo-lysosomal-autophagy pathway has been identified as a critical factor in the pathology of various demyelinating neurodegenerative diseases, including peripheral neuropathies. This pathway plays a crucial role in transporting newly synthesized myelin proteins to the plasma membrane in myelinating Schwann cells, making these cells susceptible to lysosome-related dysfunctions. Nevertheless, the specific impact of lysosomal dysfunction in Schwann cells and its contribution to neurodegeneration remain poorly understood...
March 27, 2024: Biomolecules
#3
JOURNAL ARTICLE
Firozeh Sajedi, Arman Abdi, Maryam Mehrpooya, Vida Faramarzi, Younes Mohammadi, Fateme Sheida
OBJECTIVES: Painful diabetic neuropathy (PDN) is highly prevalent and annoyingly in patients with diabetes. The aim of this study was to investigate the effects of oral N-acetylcysteine (NAC) compared to pregabalin in PDN. METHODS: One hundred two eligible patients with type 2 diabetes and PDN were randomly recievied pregabalin (150 mg/day) or N-Acetylcysteine (NAC) (600 mg/ twice a day) for 8 weeks. Mean pain score, Sleep interference score (SIS), Patient Global Impression of Change (PGIC), Clinical Global Impression of Change (CGIC), and also, serum levels of total antioxidant capacity (TAC), total thiol groups (TTG), catalase activity (CAT), nitric oxide (NO), and malondialdehyde (MDA) were assessed at baseline and at the end of the study...
April 19, 2024: Clinical Diabetes and Endocrinology
#4
JOURNAL ARTICLE
Ali Camara, Heerak Chugh, Alyssa George, Lukas Dolidze, Kevin Ryu, Katrina J Holly, Daniel P Flaherty, Seema Mattoo
AMPylation-the covalent transfer of an AMP from ATP onto a target protein-is catalyzed by the human enzyme HYPE/FicD to regulate its substrate, the heat shock chaperone BiP. HYPE-mediated AMPylation of BiP is critical for maintaining proteostasis in the ER (endoplasmic reticulum) and mounting an UPR (unfolded protein response) in times of proteostatic imbalance. Thus, manipulating HYPE's enzymatic activity is a key therapeutic strategy towards the treatment of various protein misfolding diseases, including neuropathy and early onset diabetes associated with two recently identified clinical mutations of HYPE...
April 8, 2024: Cell Stress & Chaperones
#5
REVIEW
I-Weng Yen, Hung-Yuan Li
Vascular adhesion protein-1 (VAP-1) plays a dual role with its adhesive and enzymatic properties, facilitating leukocyte migration to sites of inflammation and catalyzing the breakdown of primary amines into harmful by-products, which are linked to diabetic complications. Present in various tissues, VAP-1 also circulates in a soluble form in the bloodstream. Diabetes is associated with several complications such as cardiovascular disease, retinopathy, nephropathy, and neuropathy, significantly contributing to disability and mortality...
April 6, 2024: Journal of Diabetes Investigation
#6
JOURNAL ARTICLE
Stéphanie A Eid, Sarah E Elzinga, Kai Guo, Lucy M Hinder, John M Hayes, Crystal M Pacut, Emily J Koubek, Junguk Hur, Eva L Feldman
Peripheral neuropathy (PN) is a severe and frequent complication of obesity, prediabetes, and type 2 diabetes characterized by progressive distal-to-proximal peripheral nerve degeneration. However, a comprehensive understanding of the mechanisms underlying PN, and whether these mechanisms change during PN progression, is currently lacking. Here, gene expression data were obtained from distal (sciatic nerve; SCN) and proximal (dorsal root ganglia; DRG) injury sites of a high-fat diet (HFD)-induced mouse model of obesity/prediabetes at early and late disease stages...
March 29, 2024: Translational Research: the Journal of Laboratory and Clinical Medicine
#7
JOURNAL ARTICLE
Chong Tang, Haiming Liu, Hui Zou, Meilei Su, Honglei Yin, Meihua Sun, Yuhan Zhao, Junlong Guo, Xiaoling Lai, Xiang Xue, Enze Li
Depression is one of the most common forms of psychopathology, which is associated with gut microbiota dysfunction. Dihydroartemisinin (DHA) has been shown to regulate gut microbiota and ameliorate neuropathies, but whether it can be used to treat depression remains unclear. Our study found that DHA treatment raised the preference for sugar water in chronic unpredictable mild stress (CUMS)-induced mice and reduce the immobility time in open field, forced swimming and tail suspension experiments, and promoted doublecortin expression...
March 27, 2024: Neuroscience
#8
JOURNAL ARTICLE
Shivam, Asheesh Kumar Gupta, Sushil Kumar
One of the most crippling effects of diabetes mellitus is diabetic neuropathy, which can cause discomfort, loss of movement, and even amputation. Diabetic neuropathy manifests in a variety of ways, ranging from pain to death. Diagnosing diabetic neuropathy can be challenging since it often goes unnoticed for many years following the onset of diabetes. In addition to oxidative stress in neurons, hyperglycemia activates a number of metabolic pathways that are important sources of damage and possible targets for treatment in diabetic neuropathy...
March 28, 2024: Central Nervous System Agents in Medicinal Chemistry
#9
JOURNAL ARTICLE
Gustavo Daher, Daniele Pereira Santos-Bezerra, Ana Mercedes Cavaleiro, Tatiana Souza Pelaes, Sharon Nina Admoni, Ricardo Vessoni Perez, Cleide Guimarães Machado, Fernanda Gaspar do Amaral, José Cipolla-Neto, Maria Lúcia Correa-Giannella
AIM: The pathogenesis of chronic diabetes complications has oxidative stress as one of the major elements, and single-nucleotide polymorphisms (SNPs) in genes belonging to antioxidant pathways modulate susceptibility to these complications. Considering that melatonin is a powerful antioxidant compound, our aim was to explore, in a longitudinal cohort study of type 1 diabetes (T1D) individuals, the association of microvascular complications and SNPs in the gene encoding melatonin receptor 1A ( MTNR1A )...
2024: Frontiers in Endocrinology
#10
REVIEW
Vi Nguyen, Elaine G Taine, Dehao Meng, Taixing Cui, Wenbin Tan
Trigonelline (TRG) is a natural polar hydrophilic alkaloid that is found in many plants such as green coffee beans and fenugreek seeds. TRG potentially acts on multiple molecular targets, including nuclear factor erythroid 2-related factor 2 (Nrf2), peroxisome proliferator-activated receptor γ, glycogen synthase kinase, tyrosinase, nerve growth factor, estrogen receptor, amyloid-β peptide, and several neurotransmitter receptors. In this review, we systematically summarize the pharmacological activities, medicinal properties, and mechanistic actions of TRG as a potential therapeutic agent...
March 16, 2024: International Journal of Molecular Sciences
#11
REVIEW
Cristina Russo, Dario Rusciano, Rosa Santangelo, Lucia Malaguarnera
Antioxidants, usually administered orally through the systemic route, are known to counteract the harmful effects of oxidative stress on retinal cells. The formulation of these antioxidants as eye drops might offer a new option in the treatment of oxidative retinopathies. In this review, we will focus on the use of some of the most potent antioxidants in treating retinal neuropathies. Melatonin, known for its neuroprotective qualities, may mitigate oxidative damage in the retina. N-acetyl-cysteine (NAC), a precursor to glutathione, enhances the endogenous antioxidant defense system, potentially reducing retinal oxidative stress...
February 21, 2024: Medicina
#12
JOURNAL ARTICLE
Reza Maroofian, Payam Sarraf, Thomas J O'Brien, Mona Kamel, Arman Cakar, Nour Elkhateeb, Tracy Lau, Siddaramappa Jagdish Patil, Christopher J Record, Alejandro Horga, Miriam Essid, Laila Selim, Hanene Benrhouma, Thouraya Ben Younes, Giovanni Zifarelli, Alistair T Pagnamenta, Peter Bauer, Mukhran Khundadze, Andrea Mirecki, Sara Mahmoud Kamel, Mohamed A Elmonem, Ehsan Ghayoor Karimiani, Yalda Jamshidi, Amaka C Offiah, Alexander M Rossor, Ilhem Ben Youssef-Turki, Christian A Hübner, Pinki Munot, Mary M Reilly, André E X Brown, Sara Nagy, Henry Houlden
Heterozygous RTN2 variants have been previously identified in a limited cohort of families affected by autosomal dominant spastic paraplegia (SPG12-OMIM:604805) with a variable age of onset. Nevertheless, the definitive validity of SPG12 remains to be confidently confirmed due to scarcity of supporting evidence. In our study, we identified and validated seven novel or ultra-rare homozygous loss-of-function RTN2 variants in 14 individuals from seven consanguineous families with distal hereditary motor neuropathy (dHMN) using exome, genome and Sanger sequencing coupled with deep-phenotyping...
March 25, 2024: Brain
#13
REVIEW
Remina Shirai, Junji Yamauchi
The Golgi apparatus is an intracellular organelle that modifies cargo, which is transported extracellularly through the nucleus, endoplasmic reticulum, and plasma membrane in order. First, the general function of the Golgi is reviewed and, then, Golgi stress signaling is discussed. In addition to the six main Golgi signaling pathways, two pathways that have been increasingly reported in recent years are described in this review. The focus then shifts to neurological disorders, examining Golgi stress reported in major neurological disorders, such as Alzheimer's disease, Parkinson's disease, and Huntington's disease...
March 7, 2024: Neurology International
#14
JOURNAL ARTICLE
Rhian Stavely, Ainsley M Robinson, Sarah Fraser, Rhiannon T Filippone, Vanesa Stojanovska, Rajaraman Eri, Vasso Apostolopoulos, Samy Sakkal, Kulmira Nurgali
Current treatments for inflammatory bowel disease (IBD) are often inadequate due to limited efficacy and toxicity, leading to surgical resection in refractory cases. IBD's broad and complex pathogenesis involving the immune system, enteric nervous system, microbiome, and oxidative stress requires more effective therapeutic strategies. In this study, we investigated the therapeutic potential of bone marrow-derived mesenchymal stem cell (BM-MSC) treatments in spontaneous chronic colitis using the Winnie mouse model which closely replicates the presentation and inflammatory profile of ulcerative colitis...
March 20, 2024: Scientific Reports
#15
JOURNAL ARTICLE
Yulian Yang, Zhongzheng He, Shuangchan Wu
BACKGROUND: Chemotherapy-induced peripheral neuropathy (CIPN) reduces the overall quality of life and leads to interruption of chemotherapy. Ursolic acid, a triterpenoid naturally which presents in fruit peels and in many herbs and spices, can function as a peroxisome proliferator-activated receptor γ (PPARγ) agonist, and has been widely used as an herbal medicine with a wide spectrum of pharmacological activities, including anti-cancer, anti-inflammatory and neuroprotective effect...
March 2, 2024: Toxicology and Applied Pharmacology
#16
JOURNAL ARTICLE
Issei Noda, Yusuke Fukumoto, Masashi Kitano, Shintarou Kudo
BACKGROUND: The region where the ulnar nerve (UN) is swollen in baseball players with ulnar neuropathy is not apparent. This study investigated the UN's cross-sectional area (CSA) at each entrapment point in baseball players. We also aimed to clarify the relationship between valgus instability and the CSA of the UN. METHODS: Forty baseball players were separated into healthy and ulnar neuropathy groups. The CSA and valgus instability were measured using ultrasonography (US)...
March 2024: Shoulder & Elbow
#17
JOURNAL ARTICLE
Nurhan Akaras, Cihan Gür, Cuneyt Caglayan, Fatih Mehmet Kandemir
OBJECTIVES: Oxaliplatin (OXL) is a platinum-based chemotherapeutic agent widely used in the treatment of colorectal cancer. Unfortunately, this important drug also causes unwanted side effects such as neuropathy, ototoxicity, and testicular toxicity. This study aimed to investigate the possible protective effects of naringin (NRG) against OXL-induced testicular toxicity in rats. MATERIALS AND METHODS: In the present study, rats were injected with OXL (4 mg/kg, b...
2024: Iranian Journal of Basic Medical Sciences
#18
JOURNAL ARTICLE
María Fernanda Pérez Hernández, Alejandra Calderón Vallejo, Sergio de Jesús Aguilar Castillo, Daniel Cuauhtémoc Gómez Jiménez, Eduardo Rodríguez Guerrero, Fátima Aguilar Morales, Macedonia Guadalupe Moreno Tovar, Miguel Alfredo Zurita Muñóz, Antonio Eduardo Bautista Cortéz, Claudia Camelia Calzada Mendoza, Mónica Ascención De Nova Ocampo, Juan Manuel Ordóñez Rodríguez, Mónica Luz Gómez Esquivel, Alberto García Méndez, Octavio Flores Gil, Víctor Manuel Macías Zaragoza, Gabriela Yanet Cortés Moreno, Citlaltepetl Salinas Lara, Germán Velázquez García, Héctor Iván Saldivar Cerón, Lucia Monserrat Pérez Navarro, Laura Ávila Jiménez, Jaime Héctor Gómez Zamudio, Margarita Díaz Flores, Miguel Cruz López, María Esther Ocharan Hernández, José de Jesús Peralta Romero
BACKGROUND: Diabetic peripheral neuropathy (DPN) is the most common complication of type 2 diabetes mellitus (T2DM); its diagnosis and treatment are based on symptomatic improvement. However, as pharmacological therapy causes multiple adverse effects, the implementation of acupunctural techniques, such as electroacupuncture (EA) has been suggested as an alternative treatment. Nonetheless, there is a lack of scientific evidence, and its mechanisms are still unclear. We present the design and methodology of a new clinical randomized trial, that investigates the effectiveness of EA for the treatment of DPN...
February 15, 2024: BMC complementary medicine and therapies
#19
JOURNAL ARTICLE
Jiaru Liang, Xiaoyang Gong, Xuyang Hu, Chong You, Jiaqi Zhou, Yuling Gao, Junwei Zong, Yong Liu
Diabetic foot ulcers (DFU), diabetic peripheral neuropathy (DPN) and peripheral arterial disease (PAD) are common complications of diabetes mellitus, while diabetic peripheral neuropathy and peripheral arterial disease contribute to the pathogenesis of diabetic foot ulcers, and the pathogenic mechanisms between these three diseases still need further investigation. The keywords 'diabetic foot ulcer', 'diabetic peripheral neuropathy' and 'atherosclerosis' were used to search for related gene sets in the GEO database...
February 2024: International Wound Journal
#20
JOURNAL ARTICLE
Annemie S Bojer, Martin H Sørensen, Stine H Madsen, David A Broadbent, Sven Plein, Peter Gæde, Per L Madsen
BACKGROUND: Patients with diabetes demonstrate early left ventricular systolic dysfunction. Notably reduced global longitudinal strain (GLS) is related to poor outcomes, the underlying pathophysiology is however still not clearly understood. We hypothesized that pathophysiologic changes with microvascular dysfunction and interstitial fibrosis contribute to reduced strain. METHODS: 211 patients with type 2 diabetes and 25 control subjects underwent comprehensive cardiovascular phenotyping by magnetic resonance imaging...
February 13, 2024: Diabetology & Metabolic Syndrome
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