Kwok Tai Chui^1,*, Varsha Arya¹, Brij B. Gupta^2,3,4,*, Miguel Torres-Ruiz⁵, Razaz Waheeb Attar⁶

CMC-Computers, Materials & Continua, Vol.86, No.1, pp. 1-23, 2026, DOI:10.32604/cmc.2025.068842 - 10 November 2025

Abstract Parkinson’s disease (PD) is a debilitating neurological disorder affecting over 10 million people worldwide. PD classification models using voice signals as input are common in the literature. It is believed that using deep learning algorithms further enhances performance; nevertheless, it is challenging due to the nature of small-scale and imbalanced PD datasets. This paper proposed a convolutional neural network-based deep support vector machine (CNN-DSVM) to automate the feature extraction process using CNN and extend the conventional SVM to a DSVM for better classification performance in small-scale PD datasets. A customized kernel function reduces the impact… More >

Tomoki Sekimori^1,*, Ichiro Kawahata^2,*

BIOCELL, Vol.49, No.11, pp. 2125-2136, 2025, DOI:10.32604/biocell.2025.070394 - 24 November 2025

Abstract Lewy body diseases (LBD), including Parkinson’s disease (PD) and dementia with Lewy bodies (DLB), are neurodegenerative disorders characterized by the intracellular aggregation and accumulation of α-Synuclein (αSyn), leading to neuronal death. Although these diseases primarily present with symptoms affecting the central nervous system (CNS), such as motor and cognitive impairment, increasing research suggests that their roots may be found in the gut. This review summarizes recent findings and key historical insights into the involvement of the gut in αSyn pathology. The topics covered include pathological observations in patients with LBD, animal models investigating the propagation More >

Stephanie Seneff^1,*, Greg Nigh², Anthony M. Kyriakopoulos^3,4

BIOCELL, Vol.49, No.9, pp. 1545-1572, 2025, DOI:10.32604/biocell.2025.066687 - 25 September 2025

Abstract Deuterium is a heavy isotope of hydrogen, with an extra neutron, endowing it with unique biophysical and biochemical properties compared to hydrogen. The ATPase pumps in the mitochondria depend upon proton motive force to catalyze the reaction that produces ATP. Deuterons disrupt the pumps, inducing excessive reactive oxygen species and decreased ATP synthesis. The aim of this review is to develop a theory that mitochondrial dysfunction due to deuterium overload, systemically, is a primary cause of Parkinson’s disease (PD). The gut microbes supply deuterium-depleted short chain fatty acids (SCFAs) to the colonocytes, particularly butyrate, and… More >

Dong Hwan Ho^1,*, Minhyung Lee^2,3, Daleum Nam¹, Hyejung Kim¹, Janghwan Kim^2,3, Mi Kyoung Seo^4,5, Sung Woo Park^4,5, Ilhong Son^1,6,*

BIOCELL, Vol.49, No.7, pp. 1225-1244, 2025, DOI:10.32604/biocell.2025.065486 - 25 July 2025

Abstract Background: Parkinson’s disease (PD) is a common neurodegenerative disease, characterized by symptoms like tremors, muscle rigidity, and slow movement. The main cause of these symptoms is the loss of dopamine-producing neurons in a brain area called the substantia nigra. Various genetic and environmental factors contribute to this neuronal loss. Once symptoms of PD begin, they worsen with age, which also impacts several critical cellular processes. Leucine-rich repeat kinase 2 (LRRK2) is a gene associated with PD. Certain mutations in LRRK2, such as G2019S, increase its activity, disrupting cellular mechanisms necessary for healthy neuron function, including… More >

Yiqin He^1,2, Chenhan Hu^1,2, Xiangshu Meng^1,2, Rundong Ma^1,2, Kexin Duan^1,2, Yu Guo^2,3, Changqing Liu^1,2, Caiyun Ma^1,2, Gaofeng Liu^1,2,*, Chunjing Wang^1,2,*

BIOCELL, Vol.49, No.6, pp. 1037-1055, 2025, DOI:10.32604/biocell.2025.064633 - 24 June 2025

Abstract Background: Mesenchymal stem cells (MSCs) have shown great potential in treating neurodegenerative diseases, including Parkinson’s disease (PD), due to their ability to differentiate into neurons and secrete neurotrophic factors. Genetic modification of MSCs for PD treatment has become a research focus. Methods: In this study, rat pulmonary mesenchymal stem cells (PMSCs) were transduced with lentiviral vectors carrying Lmx1a/NeuroD1 to establish genetically engineered PMSCs (LN-PMSCs) and induce their differentiation into dopaminergic neurons. The LN-PMSCs were then transplanted into the right medial forebrain bundle region of PD model rats prepared using the 6-Hydroxydopamine (6-OHDA) method. Four weeks… More >

Mohammed Al-Jabbar¹, Mohammed Alshahrani^1,*, Ebrahim Mohammed Senan^2,3, Ibrahim Abunadi⁴, Sultan Ahmed Almalki¹, Eman A Alshari^3,5

CMES-Computer Modeling in Engineering & Sciences, Vol.143, No.2, pp. 2429-2457, 2025, DOI:10.32604/cmes.2025.063938 - 30 May 2025

Abstract Parkinson’s disease (PD) is a progressive neurodegenerative disorder characterized by tremors, rigidity, and decreased movement. PD poses risks to individuals’ lives and independence. Early detection of PD is essential because it allows timely intervention, which can slow disease progression and improve outcomes. Manual diagnosis of PD is problematic because it is difficult to capture the subtle patterns and changes that help diagnose PD. In addition, the subjectivity and lack of doctors compared to the number of patients constitute an obstacle to early diagnosis. Artificial intelligence (AI) techniques, especially deep and automated learning models, provide promising… More >

Kristina A. Kritskaya, Evgeniya I. Fedotova, Alexander D. Nadeev^*, Alexey V. Berezhnov^*

BIOCELL, Vol.49, No.3, pp. 451-464, 2025, DOI:10.32604/biocell.2025.061624 - 31 March 2025

Abstract Objective: Activation of mitophagy is a promising option to overcome the mitochondrial malfunction that accompanies many diseases. Herein, we investigate the mechanisms underlying the ability of sodium lactate and pyruvate to initiate mitophagy, from the perspective of action on mitochondrial network and expression levels. Methods: Fluorescent and confocal microscopy was used to assess key cell parameters characterizing the state of the mitochondrial network and the level of mitophagy in human fibroblasts carrying mutations in genes encoding LRRK2 and PINK1 after the combined application of lactate and pyruvate and after direct acidification. qRT-PCR was used to… More >

TINGTING LIU^#, XIANGRUI KONG^#, JIANSHE WEI^*

BIOCELL, Vol.48, No.12, pp. 1735-1749, 2024, DOI:10.32604/biocell.2024.056272 - 30 December 2024

Abstract Type 2 diabetes mellitus (T2DM) is a chronic metabolic disorder characterized by persistent hyperglycemia. In recent times, an elevated risk of Parkinson’s disease (PD) development among individuals with T2DM has become evident. However, the molecular mechanisms that underpin the interplay between T2DM and the pathogenesis of PD remain to be elucidated. Nevertheless, recent epidemiological studies have underscored several shared molecular pathways that are crucial for normal cellular function and are also associated with the progression and etiology of both T2DM and PD. This review encapsulates some of the shared pathophysiological mechanisms, including genetic risk factors, More >

MOHAMMAD-SADEGH LOTFI, FATEMEH B. RASSOULI^*

BIOCELL, Vol.48, No.10, pp. 1419-1428, 2024, DOI:10.32604/biocell.2024.053597 - 02 October 2024

Abstract Parkinson’s disease (PD) is one of the fastest-growing neurodegenerative disorders worldwide. So far, PD treatments only offer little clinical relief and cannot reverse or stop the disease progression. Stem cell (SC) therapy is a rapidly evolving technology that holds significant promise for enhancing current therapeutic approaches. Adipose-derived mesenchymal SCs (AD-MSCs) have many features such as easy harvest with minimal invasive techniques, high plasticity, non-immunogenicity, and no ethical issues, which have made them suitable choices for clinical applications in regenerative research. AD-MSCs are ideal tools to treat PD, as they have the potential to differentiate into… More >

TINGTING LIU^#, DINGYOU GUO^#, JIANSHE WEI^*

BIOCELL, Vol.48, No.8, pp. 1155-1179, 2024, DOI:10.32604/biocell.2024.051518 - 02 August 2024

Abstract In China, Parkinson’s disease (PD) is the second most prevalent central nervous system (CNS) degenerative illness affecting middle-aged and older persons. Movement disorders including resting tremor, bradykinesia, myotonia, postural instability, and gait instability are the predominant clinical symptoms. The two main types of PD are sporadic and familial, with sporadic PD being the more prevalent of the two. The environment, genetics, mitochondrial dysfunction, oxidative stress, inflammation, protein aggregation and misfolding, loss of trophic factors, cell death, and gut microbiota may all have a role in the etiology of PD. PD is inversely connected with other More >