ANTI-HYPERGLYCEMIC EFFECT OF TERMINALIA CATAPPA FRUIT EXTRACT IN STREPTOZOTOCIN-INDUCED DIABETIC RATS

Objective: To explore the anti-hyperglycemic effect of fruit extract of Terminalia catappa (Indian almond), a potential medicine from plant origin in a diabetic rat model.Methods: Streptozotocin-induced chronic diabetic rat model was utilized in the study. Three doses of test drug, hydro-alcoholic fruit extract of Terminalia catappa in 20 mg/kg, 30 mg/kg and 40 mg/kg and a standard anti-diabetic drug, glibenclamide (10 mg/kg) was used. The study had a total of nine groups with eight animals in each group. Drugs were given orally every day for 12 w. Blood glucose, body weight and urine volume were measured weekly, glycosylated hemoglobin (HbA1c) was estimated at 12th week in all groups. Data for all parameters were analyzed using one-way ANOVA repeated measures followed by Mann-Whitney test.Results: Hydro-alcoholic fruit extract of T. catappa significantly decreased blood glucose, urine volume and increased body weight in a dose-dependent manner in diabetic rats. At 12th week, blood glucose level in control, diabetic control, glibenclamide, T. catappa (40 mg/kg) group was 96.25±2.05 mg/dl, 599.75±0.25 mg/dl, 248.25±11.45 mg/dl, 115.00±3.78 mg/dl respectively. Effect of T. catappa in 30 mg/kg and 40 mg/kg dose was significantly more than glibenclamide. At 12th week, HbA1c level in control, diabetic control, glibenclamide, T. catappa (40 mg/kg) was 2.94±0.33 mmol/l, 4.94±0.49 mmol/l, 3.61±0.28 mmol/l, 3.21±0.27 mmol/l. Treatment with T. catappa 30 mg/kg, 40 mg/kg and glibenclamide brought back the level of HbA1c to normal levels. The addition of glibenclamide to T. catappa (40 mg/kg) did not produce any additional effect on blood glucose and HbA1c levels compared to the effect of T. catappa (40 mg/kg) in diabetic rats.Conclusion: Terminalia catappa fruit extract exhibited a significant anti-hyperglycemic effect in diabetic rats and has a great potential to be used in diabetes

Protective Role of Herbal Drugs in Diabetic Neuropathy: An Updated Review

Medicinal plants play a beneficial role in health care and are commonly used in preventing and testing diseases and specific ailments. The advantage associated with herbals plants are numerous and cannot be ignored as they have less adherence issues and are accepted widely by the population due to greater belief in Ayurveda since ancient times. Neuropathic pain has immersed as a serious threat to patient that occurs by damaging the blood vessels leading to morbidity and mortality. The present review paper aims in providing an account of various herbal plants that could be employed in treatment of neuropathic pain

Traditional and Novel Herbal Drugs Emerging as Potent Novel Combinations for Managing Morbidities by Pharmacological and Mechanistic Studies

Background: Herbal drugs are used in treatment of diseases since decades. Major contributing factor for their use is easy availability, less expensive and more belief of common population because of relatively less side effects compared to allopathic medicines. Medicines of natural origin or functional foods in the prevention of disease are the need of hour. Hence, the present review focused on activity of four drugs viz. Withania somnifera,Allium sativum,Curcuma longa andAzadirachta indica and role in different clinical complications.Methods: A thorough review of all the articles, research as well as reviews available regarding the concerned topic was performed. MEDLINE database was searched and English language articles were preferably selected.Results: Withania somnifera, Allium sativum, Curcuma longa andAzadirachta indicahave shown alleviation in inflammation, diabetes and cancer states. The herbal drugs have shown beneficial effects in the prevention and treatment of these disorders. Conclusion from these facts:Utilizing this concept, it can be assumed that herbal drugs play an intricate role in safeguarding the health of individuals from life-threatening complications. However, validation and reproducibility of results in clinical trails should be there in order to confirm the safety andefficacy of these herbal drugs

A mindful path to the COVID-19 pandemic: an approach to promote physical distancing behavior

Purpose: The present situation is marked by the threat of the COVID-19 pandemic on entire humankind and researchers across the globe are looking forward to vaccines or medicines to tackle COVID-19. But, according to the scholars and health care agencies, vaccines alone won’t be of much help, and in the long run adhering to the physical distancing policy along with sanitation could be the only solution. Moreover, extant studies across different areas have noted a positive association between various human psychological factors and prosocial behaviours. Additionally, an empirical study undertaken in the western context has tried exploring the association between a human psychological factor and physical distancing behaviour (a kind of prosocial behaviour) in the COVID-19 context. The results of the extant study seem intriguing and encouraging enough to undertake a more robust exploratory study in this nascent area. Against this background, the present study intends to explore the relationship between individuals’ mindfulness and physical distancing behaviour, along with the mediating role of empathy during the COVID-19 pandemic. Design/methodology/approach: To achieve the study objectives, this study has utilized an online survey method and has collected responses from the general adult population in India spread across all the six regions. The survey was conducted during May 2020 when India was under a nationwide lockdown to mitigate the risk of COVID-19 pandemic. The respondents were identified based on the convenience and snowball sampling techniques and utilizing social media platforms the prospective respondents were either contacted through WhatsApp, LinkedIn, and Facebook or e-mails. Post data cleaning, a total of 315 responses were found to be suitable for analysis. For analysis, confirmatory factor analysis was conducted to establish the validity and reliability of the conceptual model, whereas Pearson correlation was undertaken to study the relationship between variables, and mediation was examined using the PROCESS macro of Hayes. Findings: The findings were encouraging and could become the foundation stone for further research as well as a practical guide for policymakers, agencies working in the healthcare areas, and even corporate leaders. As expected, an individual’s mindfulness was noted to be positively related and influencing physical distancing behaviour and the mediation analysis indicated the intervening role of empathy in the association between an individual’s mindfulness and physical distancing behaviour. Theoretical implications: This study relates and extends the mechanism of mindfulness in influencing individuals’ physical distancing behaviour in the pandemic situation, notably the COVID-19 pandemic. Moreover, based on the “empathy-altruism hypothesis” as well as Schwartz’s theory of basic values, the intervening role of empathy has been explored and the findings further helped in extended these two theories in the domain of pandemic. Practical implications: The findings of the present could be a game-changer in restricting the spread of the COVID-19 pandemic. As espoused by various scholars as well as health care organizations about the usefulness of physical distancing in mitigating the risk of COVID-19, policy makers, healthcare authorities, and even corporate leaders could look forward to strategizing and executing the dissemination of various mindfulness-based programs amongst the individuals. These mindfulness-based programs, which could be disseminated offline as well as online through smartphones, could in-turn help in positively influence physical distancing behaviour amongst the individuals leading to the success of physical distancing policy. Originality/value: This study could be the first to conceptualize and examine the human psychological factors, particularly the relationship and the role of an individual’s mindfulness with that of physical distancing behaviour amongst the general public during the COVID-19 pandemic. Additionally, this could also be the first study to conceptualize and explore the intervening role of empathy in the relationship between an individual’s mindfulness and physical distancing behaviour. Moreover, in conceptualizing and exploring the relationship between an individual’s mindfulness and physical distancing behaviour, this study explored and extended the “reperceiving” mechanism of mindfulness and the “empathy-altruism hypothesis” along with Schwartz’s theory of basic values in the domain of pandemic

Nanodiagnosis and Nanotreatment of Cardiovascular Diseases: An Overview

Cardiovascular diseases (CVDs) are the world’s leading cause of mortality and represent a large contributor to the costs of medical care. Although tremendous progress has been made for the diagnosis of CVDs, there is an important need for more effective early diagnosis and the design of novel diagnostic methods. The diagnosis of CVDs generally relies on signs and symptoms depending on molecular imaging (MI) or on CVD-associated biomarkers. For early-stage CVDs, however, the reliability, specificity, and accuracy of the analysis is still problematic. Because of their unique chemical and physical properties, nanomaterial systems have been recognized as potential candidates to enhance the functional use of diagnostic instruments. Nanomaterials such as gold nanoparticles, carbon nanotubes, quantum dots, lipids, and polymeric nanoparticles represent novel sources to target CVDs. The special properties of nanomaterials including surface energy and topographies actively enhance the cellular response within CVDs. The availability of newly advanced techniques in nanomaterial science opens new avenues for the targeting of CVDs. The successful application of nanomaterials for CVDs needs a detailed understanding of both the disease and targeting moieties

Autophagy induction by Scutellaria flavones in cancer: recent advances

In parallel with a steady rise in cancer incidence worldwide, the scientific community is increasingly focused on finding novel, safer and more efficient modalities for managing this disease. Over the past decades, natural products have been described as a significant source of new structural leads for novel drug candidates. Scutellaria root is one of the most studied natural products because of its anticancer potential. Besides just describing the cytotoxic properties of plant constituents, their molecular mechanisms of action in different cancer types are equally important. Therefore, this review article focuses on the role of the Scutellaria flavones wogonin, baicalein, baicalin, scutellarein and scutellarin in regulating the autophagic machinery in diverse cancer models, highlighting these molecules as potential lead compounds for the fight against malignant neoplasms. The knowledge that autophagy can function as a dual-edged sword, acting in both a pro- and antitumorigenic manner, further complicates the issue, revealing an amazing property of flavonoids that behave either as anti- or proautophagic agents

Natural Products for Neurodegeneration: Regulating Neurotrophic Signals

Neurodegenerative disorders (NDs) are heterogeneous groups of ailments typically characterized by progressive damage of the nervous system. Several drugs are used to treat NDs but they have only symptomatic benefits with various side effects. Numerous researches have been performed to prove the advantages of phytochemicals for the treatment of NDs. Furthermore, phytochemicals such as polyphenols might play a pivotal role in rescue from neurodegeneration due to their various effects as anti-inflammatory, antioxidative, and antiamyloidogenic agents by controlling apoptotic factors, neurotrophic factors (NTFs), free radical scavenging system, and mitochondrial stress. On the other hand, neurotrophins (NTs) including nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF), NT4/5, and NT3 might have a crucial neuroprotective role, and their diminution triggers the development of the NDs. Polyphenols can interfere directly with intracellular signaling molecules to alter brain activity. Several natural products also improve the biosynthesis of endogenous genes encoding antiapoptotic Bcl-2 as well as NTFs such as glial cell and brain-derived NTFs. Various epidemiological studies have demonstrated that the initiation of these genes could play an essential role in the neuroprotective function of dietary compounds. Hence, targeting NTs might represent a promising approach for the management of NDs. In this review, we focus on the natural product-mediated neurotrophic signal-modulating cascades, which are involved in the neuroprotective effectsThis work was funded by the Deanship of Scientific Research at Princess Nourah bint Abdulrahman University through the Fast-track Research Funding ProgramS

Exploring the Potential of Therapeutic Agents Targeted towards Mitigating the Events Associated with Amyloid-β Cascade in Alzheimer’s Disease

One of the most commonly occurring neurodegenerative disorders, Alzheimer’s disease (AD), encompasses the loss of cognitive and memory potential, impaired learning, dementia and behavioral defects, and has been prevalent since the 1900s. The accelerating occurrence of AD is expected to reach 65.7 million by 2030. The disease results in neural atrophy and disrupted inter-neuronal connections. Amongst multiple AD pathogenesis hypotheses, the amyloid beta (Aβ) cascade is the most relevant and accepted form of the hypothesis, which suggests that Aβ monomers are formed as a result of the cleavage of amyloid precursor protein (APP), followed by the conversion of these monomers to toxic oligomers, which in turn develop β-sheets, fibrils and plaques. The review targets the events in the amyloid hypothesis and elaborates suitable therapeutic agents that function by hindering the steps of plaque formation and lowering Aβ levels in the brain. The authors discuss treatment possibilities, including the inhibition of β- and γ-secretase-mediated enzymatic cleavage of APP, the immune response generating active immunotherapy and passive immunotherapeutic approaches targeting monoclonal antibodies towards Aβ aggregates, the removal of amyloid aggregates by the activation of enzymatic pathways or the regulation of Aβ circulation, glucagon-like peptide-1 (GLP-1)-mediated curbed accumulation and the neurotoxic potential of Aβ aggregates, bapineuzumab-mediated vascular permeability alterations, statin-mediated Aβ peptide degradation, the potential role of ibuprofen and the significance of natural drugs and dyes in hindering the amyloid cascade events. Thus, the authors aim to highlight the treatment perspective, targeting the amyloid hypothesis, while simultaneously emphasizing the need to conduct further investigations, in order to provide an opportunity to neurologists to develop novel and reliable treatment therapies for the retardation of AD progression

Current Trends in Neurodegeneration: Cross Talks between Oxidative Stress, Cell Death, and Inflammation

The human body is highly complex and comprises a variety of living cells and extracellular material, which forms tissues, organs, and organ systems. Human cells tend to turn over readily to maintain homeostasis in tissues. However, postmitotic nerve cells exceptionally have an ability to regenerate and be sustained for the entire life of an individual, to safeguard the physiological functioning of the central nervous system. For efficient functioning of the CNS, neuronal death is essential, but extreme loss of neurons diminishes the functioning of the nervous system and leads to the onset of neurodegenerative diseases. Neurodegenerative diseases range from acute to chronic severe life-altering conditions like Parkinson’s disease and Alzheimer’s disease. Millions of individuals worldwide are suffering from neurodegenerative disorders with little or negligible treatment available, thereby leading to a decline in their quality of life. Neuropathological studies have identified a series of factors that explain the etiology of neuronal degradation and its progression in neurodegenerative disease. The onset of neurological diseases depends on a combination of factors that causes a disruption of neurons, such as environmental, biological, physiological, and genetic factors. The current review highlights some of the major pathological factors responsible for neuronal degradation, such as oxidative stress, cell death, and neuroinflammation. All these factors have been described in detail to enhance the understanding of their mechanisms and target them for disease management