Publications by authors named "Dinesh K Chellappan"

Corticosteroids are extensively used in medicine for their powerful anti-inflammatory and immunosuppressive effects. However, their psychiatric side effects-such as mood disturbances, anxiety, and psychosis-are significant yet often underappreciated. This review provides a comprehensive exploration of corticosteroid-induced psychiatric disorders, with a focus on their underlying mechanisms and clinical implications.

View Article and Find Full Text PDF
Article Synopsis
  • * Traditional use of medicinal plants has been around for centuries, but their effectiveness can be hampered by issues such as low water solubility and poor absorption in the body.
  • * Recent advances involve using isolated compounds from these plants and novel delivery systems like nanoparticles to improve their effectiveness in targeting cancer pathways, potentially enhancing treatment outcomes and reducing side effects.
View Article and Find Full Text PDF
Article Synopsis
  • Natural polysaccharides, like xanthan gum, are non-toxic, biocompatible, biodegradable, and bioadhesive, making them valuable in dietary, medicinal, biomedical, and cosmetic applications.
  • Xanthan gum is a naturally derived polysaccharide from Xanthomonas Campestris, known for its high molecular weight and versatility in various formulations, including tablets and nanoparticles.
  • The review highlights xanthan gum's potential in drug delivery systems, particularly gastroretentive systems, and discusses recent innovations and patents related to its floating techniques and modifications.
View Article and Find Full Text PDF

Background And Purpose: This study aimed to improve the stability and prolonged gefitinib release from the nanoliposomes.

Experimental Approach: Nanoliposomes were prepared by reverse-phase evaporation and optimized using Box-Behnken design to investigate the influence of sonication time ( ), tween 80 / soya phosphatidylcholine ratio ( ), and cholesterol/soya phosphatidylcholine ratio ( ) on nanoliposomes.

Key Results: Optimized nanoliposomes were quasi-spherical shaped, with a mean dimension of 93.

View Article and Find Full Text PDF
Article Synopsis
  • * Understanding how viruses and bacteria work helps researchers identify important biomarkers, leading to the discovery of beneficial biological molecules that can help prevent or treat these infections.
  • * The review focuses on the effectiveness of medicinal plants against infections like COVID-19, influenza A, pneumonia, and tuberculosis, emphasizing a need for further research and clinical studies to validate their use and understand how they work.
View Article and Find Full Text PDF

Chronic obstructive pulmonary disease (COPD) is strongly linked to cigarette smoke, which contains toxins that induce oxidative stress and airway inflammation, ultimately leading to premature airway epithelial cell senescence and exacerbating COPD progression. Current treatments for COPD are symptomatic and hampered by limited efficacy and severe side effects. This highlights the need to search for an optimal therapeutic candidate to address the root causes of these conditions.

View Article and Find Full Text PDF

Inhalation of particulate matter (PM), one of the many components of air pollution, is associated with the development and exacerbation of chronic respiratory diseases, such as chronic obstructive pulmonary disease (COPD). COPD is one of the leading causes of global mortality and morbidity, with a paucity of therapeutic options and a significant contributor to global health expenditure. This review aims to provide a mechanistic understanding of the cellular and molecular pathways that lead to the development of COPD following chronic PM exposure.

View Article and Find Full Text PDF
Article Synopsis
  • - Antimicrobial resistance is a serious public health issue, with the WHO estimating it causes around 700,000 deaths globally and highlighting the need for better understanding and solutions.
  • - Bacterial cells can enter a dormant state called bacterial persistence, allowing them to survive antibiotic treatment and potentially lead to chronic infections.
  • - The review focuses on how persister cells contribute to antibiotic resistance and discusses existing treatment strategies to address this challenge.
View Article and Find Full Text PDF

Coriander (Coriandrum sativum L.) is a member of the Umbelliferae/Apiaceae family and one of the well-known essential oil-containing plants, in which the seeds are used in traditional medicine, and as flavoring in food preparation. Knowing the diverse chemical components of different parts of the plant, this work aims to investigate the antioxidant, the anti-inflammatory, and the immunostimulatory modulator effects of the Jordanian C.

View Article and Find Full Text PDF
Article Synopsis
  • - Parkinson's disease (PD) is characterized by misfolded α-synuclein (αSyn) proteins, leading to both motor symptoms (like stiffness and tremors) and nonmotor symptoms that can vary among individuals due to progressive neuron and synapse loss.
  • - While medical and surgical treatments, such as deep brain stimulation, can improve well-being and survival, they do not stop the disease from progressing.
  • - The complexity of the brain and the blood-brain barrier (BBB) make delivering drugs for PD treatment difficult, but this article explores the potential of chitosan-based drug delivery systems as a solution.
View Article and Find Full Text PDF

The microbiota-gut-brain axis (MGBA) represents a sophisticated communication network between the brain and the gut, involving immunological, endocrinological, and neural mediators. This bidirectional interaction is facilitated through the vagus nerve, sympathetic and parasympathetic fibers, and is regulated by the hypothalamic-pituitary-adrenal (HPA) axis. Evidence shows that alterations in gut microbiota composition, or dysbiosis, significantly impact neurological disorders (NDs) like anxiety, depression, autism, Parkinson's disease (PD), and Alzheimer's disease (AD).

View Article and Find Full Text PDF

Lung cancer (LC) is the leading cause of cancer-related mortality, and it is caused by many factors including cigarette smoking. Despite numerous treatment strategies for LC, its five-year survival is still poor (<20 %), attributable to treatment resistance and lack of early diagnosis and intervention. Importantly, LC incidence is higher in patients affected by chronic respiratory diseases (CRDs) such as asthma and chronic obstructive pulmonary disorder (COPD), and LC shares with other CRDs common pathophysiological features including chronic inflammation, oxidative stress, cellular senescence, and airway remodelling.

View Article and Find Full Text PDF
Article Synopsis
  • * It points out that mutations in metastatic tumors differ from those in the original tumor, and identifies new potential therapeutic targets through studying tumor heterogeneity.
  • * Pre-clinical research has shown that the immune system, particularly tumor-associated macrophages, plays a significant role in metastasis, and the identification of new biomarkers could improve prognostic methods and guide clinical trials.
View Article and Find Full Text PDF

Chronic respiratory diseases (CRDs) represent a significant proportion of global health burden, with a wide spectrum of varying, heterogenic conditions largely affecting the pulmonary system. Recent advances in immunology and respiratory biology have highlighted the systemic impact of these diseases, notably through the elucidation of the lung-eye axis. The current review focusses on understanding the pivotal role of the lung-eye axis in the pathogenesis and progression of chronic respiratory infections and diseases.

View Article and Find Full Text PDF

Lung cancer remains the leading cause of cancer-related deaths worldwide. According to the American Cancer Society (ACS), it ranks as the second most prevalent type of cancer globally. Recent findings have highlighted bidirectional gut-lung interactions, known as the gut-lung axis, in the pathophysiology of lung cancer.

View Article and Find Full Text PDF

Hepatocellular carcinoma (HCC) is among the primary reasons for fatalities caused by cancer globally, highlighting the need for comprehensive knowledge of its molecular aetiology to develop successful treatment approaches. The PI3K/Akt system is essential in the course of HCC, rendering it an intriguing candidate for treatment. Non-coding RNAs (ncRNAs), such as long ncRNAs (lncRNAs), microRNAs (miRNAs), and circular RNAs (circRNAs), are important mediators of the PI3K/Akt network in HCC.

View Article and Find Full Text PDF

Alzheimer's disease (AD) is the most prevalent form of neurodegenerative disorder (ND), affecting more than 44 million individuals globally as of 2023. It is characterized by cognitive dysfunction and an inability to perform daily activities. The progression of AD is associated with the accumulation of amyloid beta (Aβ), the formation of neurofibrillary tangles (NFT), increased oxidative stress, neuroinflammation, mitochondrial dysfunction, and endoplasmic reticulum stress.

View Article and Find Full Text PDF

The escalating prevalence of lung diseases underscores the need for innovative therapies. Dysbiosis in human body microbiome has emerged as a significant factor in these diseases, indicating a potential role for synbiotics in restoring microbial equilibrium. However, effective delivery of synbiotics to the target site remains challenging.

View Article and Find Full Text PDF

Tobacco smoking is a leading cause of preventable mortality, and it is the major contributor to diseases such as COPD and lung cancer. Cigarette smoke compromises the pulmonary antiviral immune response, increasing susceptibility to viral infections. There is currently no therapy that specifically addresses the problem of impaired antiviral response in cigarette smokers and COPD patients, highlighting the necessity to develop novel treatment strategies.

View Article and Find Full Text PDF
Article Synopsis
  • The study tested a commercially available multi-species probiotic conditioned medium (CM) on RAW264.7 murine macrophages, prepared by culturing probiotics and sterilizing the supernatant for testing.
  • Results showed that all CM dilutions maintained high cell viability (>80%), with undiluted CM (100%) significantly enhancing macrophage activity, indicating probiotics may boost immune function and overall health.
View Article and Find Full Text PDF

The gut microbiome is involved in the pathogenesis of many diseases including polycystic ovarian syndrome (PCOS). Modulating the gut microbiome can lead to eubiosis and treatment of various metabolic conditions. However, there is no proper study assessing the delivery of microbial technology for the treatment of such conditions.

View Article and Find Full Text PDF

Chronic Obstructive Pulmonary Disease (COPD), a chronic lung disease that causes breathing difficulties and obstructs airflow from the lungs, has a significant global health burden and affects millions of people worldwide. The use of pharmaceuticals in COPD treatment is aimed to alleviate symptoms, improve lung function, prevent exacerbations, and enhance the overall quality of life for patients. Nanotechnology holds great promise to alleviate the burden of COPD.

View Article and Find Full Text PDF
Article Synopsis
  • Tumour suppressor genes are crucial in the development of lung cancer, which is a common type of cancer that often shows resistance to initial treatment.
  • Extensive research has been focused on understanding how mutations in these genes lead to cancer progression and treatment failure, particularly looking at specific chromosomal areas vulnerable to loss of heterozygosity (LOH) due to genetic and environmental factors.
  • The review aims to provide insight into the molecular mechanisms behind these alterations and to inspire future research efforts for more effective lung cancer therapies.
View Article and Find Full Text PDF