Narra J (Journal)
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Chronic exercise reduces astrocytic c-Fos and CCL2 via conditioned serum and cerebrospinal fluid
Get PDFInflammation, a critical immune response to infection and tissue damage, is mediated by pro-inflammatory cytokines such as tumor necrosis factor-alpha (TNF-α), which upregulate the expression of cellular proto-oncogene Fos (c-Fos) and chemokine ligand 2 (CCL2). Chronic exercise has been shown to exert systemic anti-inflammatory effects, yet its impact on astrocytic inflammatory signaling remains unclear. The aim of this study was to investigate whether chronic exercise modulates astrocytic expression of c-Fos and CCL2 through factors present in conditioned serum and cerebrospinal fluid (CSF). Male wistar rats were assigned to an exercise group (progressively increased swimming, five times per week for four weeks) or a sedentary control group. Conditioned serum and CSF were collected and applied to astrocyte cultures with or without TNF-α induction. After 120 minutes, c-Fos and CCL2 expression were quantified using western blot analysis. Conditioned serum and CSF from exercise rats significantly reduced TNF-α induced c-Fos and CCL2 expression compared with controls. These findings suggest that chronic exercise may attenuate neuroinflammatory responses by modulating astrocytic expression of c-Fos and CCL2. The parallel reductions observed in both serum and CSF indicate that exercise-induced circulating factors may possess anti-inflammatory properties within neural environments. This study provides preliminary in vitro evidence for mechanistic link between chronic exercise and reduced neuroinflammation, underscoring the need for in vivo validation and translational research to assess therapeutic potential
Death contemplation and mental well-being in elderly Thai Buddhist meditation practitioners
Get PDFDepression is prevalent among older adults in Southeast Asia, with fear of death as a key contributing factor. In Thailand, Buddhist death contemplation practices promote acceptance of mortality and may support mental well-being. However, their impact on mental health among elderly Thai Buddhist meditation practitioners remains underexplored. The aim of this study was to examine the interrelationships among death contemplation practice, positive death attitudes, and key psychological outcomes: well-being, depression, and gratitude among elderly Thai Buddhist meditation practitioners. A cross-sectional study design was employed, and data were collected from elderly Thai Buddhist meditation practitioners in Northern Thailand. Participants completed validated instruments assessing death attitudes (Morana Questionnaire; MoQ), death contemplation practice (Modified Meditation Evaluation Questionnaire; MMEQ), well-being (WHO-5-T), depression (Outcome Inventory-21), and gratitude (Gratitude Inventory-6). Descriptive statistics, Pearson correlations, and analysis of covariance (ANCOVA) were used to examine associations among variables and differences across levels of death contemplation practice. A total of 332 elderly participants (mean age=68.12 years; 66% female) were included. Death contemplation practice showed a significant negative association with depression (p=0.011) but not with well-being (p=0.116) or gratitude (p=0.226) after controlling for covariates. Positive death attitudes were independently associated with lower levels of depression (p<0.001), as well as higher levels of well-being (p<0.001) and gratitude (p<0.001), remaining a significant predictor across all outcomes. The association between contemplation and depression weakened when positive attitudes were included in the model, suggesting a mediating effect. These findings underscore the central role of positive death attitudes, cultivated through contemplative practice, in supporting mental health among elderly Thai Buddhist meditation practitioners. Integrating such practices into interventions may offer culturally appropriate strategies for enhancing well-being in aging Buddhist populations
Biomolecules derived from salivary exosomes encapsulated in chitosan for bone regeneration in alveolar osteitis: A systematic review
Get PDFAlveolar osteitis (dry socket) is a common complication after tooth extraction that delays bone healing and causes significant pain. Conventional treatments are largely palliative and do not actively promote regeneration. Salivary exosomes, rich in bioactive molecules, and chitosan, a biocompatible and biodegradable polymer, might offer a promising combined approach for targeted bone regeneration. The aim of this systematic review was to systematically evaluate the regenerative potential of salivary exosomes encapsulated in chitosan for the treatment of alveolar osteitis. The systematic review was conducted following PRISMA guidelines and the PICO framework. Comprehensive searches were performed across PubMed, ScienceDirect, ProQuest, Cochrane Library, and Google Scholar for English-language articles published between 2021 and 2025. Eligible studies included in vitro, in vivo, and preclinical research assessing chitosan-encapsulated salivary exosomes for bone regeneration. Data were extracted on study design, interventions, outcome measures, and therapeutic effects. From 524 retrieved records, 10 full-text articles were assessed, and two met the eligibility criteria. Both studies demonstrated that chitosan encapsulation improved the stability and delivery efficiency of salivary exosomes. Outcomes included increased osteogenic gene expression (ALP, BMP-2, osteocalcin, RUNX2), enhanced angiogenesis, reduced inflammation, and histological evidence of accelerated bone regeneration compared with conventional treatment. In conclusion, current evidence suggests that salivary exosomes encapsulated in chitosan have strong therapeutic potential for alveolar osteitis by promoting osteogenesis, reducing inflammation, and enhancing bone healing. However, further preclinical validation and controlled human trials are required before clinical translation
Therapeutic potential of hUC-MSC secretome preconditioned with IFN-γ and/or TNF-α: An in vitro study on Alzheimer’s neuronal cell models
Get PDFAlzheimer's disease is a progressive neurodegenerative disease that is characterized by toxic Amyloid-β (Aβ) plaques and neurofibrillary tangles (NFTs). Treatment options include the use of human umbilical cord mesenchymal stem cell (hUC-MSC)-based therapy. Its secretome contains healing substances such as neprilysin (CD10), which breaks down Aβ42; anti-inflammatory cytokines, which lower inflammation; and growth factors, which promote neuronal regeneration. The aim of this study was to produce hUC-MSC secretomes preconditioned with tumor necrosis factor-alpha (TNF-α) and/or interferon-gamma (IFN-γ) to enhance the secretion of these healing substances. hUC-MSCs were sub-cultured in T-25 flasks at a seeding density of 5×10³ cells/cm² in 10 mL xeno-free medium. hUC-MSCs were preconditioned with TNF-α only, IFN-γ only, and a combination of TNF-α and IFN-γ. This study used 10 ng/mL TNF-α and 20 ng/mL IFN-γ. The secretome was harvested after 48 hours of preconditioning and then filtered through a 0.22 µm filter. In vitro tests were conducted to assess the effects of the secretome on neuronal survival using the neuroblastoma SH-SY5Y cell line. These cells were differentiated with retinoic acid (RA) and then exposed to Aβ42 to mimic Alzheimer's disease neurons. Secretome therapy was applied at concentrations of 5%, 10%, and 20% to evaluate neuroprotective effects. Four types of secretome were tested: unpreconditioned, TNF-α preconditioned, IFN-γ preconditioned, and a combination of TNF-α and IFN-γ. High levels of CD10 (neprilysin) expression were observed in hUC-MSCs treated with IFN-γ and TNF-α, although they did not release sufficient soluble neprilysin (sNEP). Viability results indicated that secretomes preconditioned with IFN-γ at 10% and 20% concentrations provided the highest increase in cell viability after 72 hours post-therapy. The combination of TNF-α and IFN-γ preconditioned secretome exhibited synergistic effects, particularly at 5% and 10% doses at 24- and 72-hours post-therapy. In conclusion, preconditioned hUC-MSC secretome represents a promising therapeutic approach for Alzheimer's disease, as it enhances neuronal cell viability and promotes neuronal regeneration. However, further studies are required to optimize sNEP release and maximize therapeutic efficacy in in vivo models
Complex medical conditions and health risk behaviors among homeless males with schizophrenia
Get PDFA comprehensive assessment of complex medical conditions and health risk behaviors among homeless individuals with schizophrenia facilitates the identification of health needs and areas for improvement in health services, thereby promoting more holistic care for this highly vulnerable population. The aim of this study was to assess complex medical conditions and health risk behaviors among Thai homeless males with schizophrenia. Additionally, factors related to the presence of multimorbidity in these vulnerable individuals were explored. Using a cross-sectional design, the study identified the prevalence of systemic diseases, physical disabilities, co-occurring mental disorders, and health risk behaviors among Thai homeless males with schizophrenia at the largest public homeless shelter in Pathum Thani, Thailand. Factors related to the presence of multimorbidity among these individuals were analyzed using univariable and multivariable generalized linear models for binomial response data with an identity link function to estimate prevalence difference (PD). Among 231 homeless males with schizophrenia, the prevalence of multimorbidity was 35.9%. Disease-specific prevalence was dominated by epilepsy (21.6%) and anemia (10.8%). About 38.4% of participants were underweight. The most common health risk behaviors included smoking (71.5%) and alcohol consumption (23.7%). Physical disabilities and co-occurring mental disorders were identified in 11.7% of participants, while 5.7% reported a history of suicide attempts. Underweight individuals had a significantly higher prevalence of multimorbidity compared to those with normal weight (adjusted PD (95%CI): 0.150 (0.017–0.823)). The study highlights that the substantial burden of complex medical conditions and health risk behaviors in this population underscores the need for a healthcare system that is not only reactive but also proactive. Such a system should prioritize health promotion and disease prevention to effectively safeguard the well-being of these vulnerable individuals
Cross-cultural adaptation and validation of the 9-item Indonesian HIV/AIDS Stigma Scale (InHASS-9) for the general population
Get PDFStigma against people living with human immunodeficiency virus (HIV)/acquired immunodeficiency syndrome (AIDS) (PLWHA) poses significant health threats and contributes to the uncontrolled transmission of HIV. Although tools for measuring stigma against PLWHA have been validated in Indonesia, a previous study was geographically limited and conducted with small sample sizes. The aim of this study was to perform cross-cultural adaptation and validate the psychometric properties of the 9-item Indonesian HIV/AIDS Stigma Scale (InHASS-9) in the Indonesian general population. Utilizing a cross-sectional design, the study recruited 1,302 participants from six major islands in Indonesia. The validity of the instrument was determined using recognized group validity and construct validity, while internal consistency was evaluated using Cronbach's alpha. During the adaptation phase, nine simple items were finalized for inclusion in the scale. The findings revealed that the InHASS-9 instrument exhibited strong internal consistency, with Cronbach's alpha coefficient of 0.83, indicating high reliability. In conclusion, the InHASS-9 instrument is a valid and reliable tool for assessing the extent of social stigma associated with PLWHA in Indonesia
Probiotic Lactobacillus sp. as a strategy for modulation of non-comorbid obesity: A systematic meta-analysis and GRADE assessment of randomized controlled trials
Get PDFGiven the high prevalence of obesity worldwide, effective therapeutic strategies are crucial to prevent and manage obesity-related health conditions. Existing studies indicate that Lactobacillus sp. showed beneficial effects on body weight and adiposity by modifying the gut microbiota; however, no meta-analysis has been conducted assessing the efficacy of Lactobacillus sp-based probiotics on anthropometric parameters, leptin and adiponectin levels, and gut microbiota composition. The aim of this study was to evaluate the efficacy and safety of probiotic supplementation with Lactobacillus sp. in obese individuals without comorbidities. A systematic search was conducted on November 28, 2024, using five databases: PubMed, Wiley, ScienceDirect, Epistemonikos, and Cochrane. Primary outcomes included changes in body mass index (BMI), body weight, waist and hip circumferences, visceral and subcutaneous fat areas, and total body fat content. Secondary outcomes included alterations in leptin and adiponectin levels, gut microbiota composition, and the incidence of adverse events. A total of 1,058 individuals were included across 12 clinical trials. Significant reductions were observed in BMI (mean difference (MD): -0.40 kg/m²; 95%CI: -0.48–(-0.32), p<0.00001), body weight (MD: -1.16 kg; 95%CI: -1.79–(-0.53), p=0.0003), waist circumference (MD: -1.41 cm; 95%CI: -1.75–(-1.08), p<0.00001), and hip circumference (MD: -0.85 cm; 95%CI: -1.09–(-0.61), p<0.00001) compared to controls. Additionally, compared to control group, significant reductions were observed in visceral and subcutaneous fat mass (MD: -7.35; 95%CI: -9.95–(-4.75); p<0.00001) and overall body fat (MD: -1.11; 95%CI: -1.31–(-0.91); p<0.00001). Leptin levels significantly decreased (MD: -2.11 μg/mL; 95%CI: -3.59–(-0.64), p=0.005) compared to before Lactobacillus sp. supplementation, while adiponectin levels increased (MD: 0.71 μg/mL; 95%CI: 0.22–1.20, p=0.004) following Lactobacillus sp. supplementation compared to placebo group. No significant adverse events were reported in either the intervention or control groups. In conclusion, Lactobacillus sp. probiotic supplementation may serve as an adjuvant therapy to enhance obesity management in non-comorbid obese individuals
Beetroot (Beta vulgaris) potential in preventing colorectal cancer using in-silico analysis
Get PDFColorectal cancer (CRC) is one of the leading causes of cancer-related mortality worldwide, necessitating the need for an effective therapeutic strategy. Beta vulgaris (beetroot) possesses active compounds that exert anti-cancer properties. The aim of this study was to evaluate the potential of beetroot as a preventative agent against the progression of CRC using differentially expressed gene (DEG) analysis and network pharmacology approaches. The protein-protein interaction network and molecular docking analyses were employed to assess the key interactions of beetroot active compounds with CRC-related target protein. Cytotoxicity of beetroot extract was experimentally evaluated using 3-(4,5-dimethylthiazol-2-yl)-2,5 diphenyl tetrazolium bromide (MTT) assay on the HT29 cell line. The result of this study showed that protein in the cell cycle was significantly enriched in CRC, with cyclin-dependent kinase 4 (CDK4) gene as one of the specific genes. Quercetin, galangin, hesperidin, farrerol, and betanin were the most typical compounds of beetroot based on the Comparative Toxicogenomics Database (CTD). Molecular docking studies revealed the strong binding affinity between quercetin (-7.04 kcal/mol) and bentanin (-8.11 kcal/mol) with CDK4. Beetroot demonstrated anticancer properties against the HT29 cell line with IC50 value of 39.03±1.4 µg/mL. In conclusion, the beetroot extract has inhibitory activity against HT29 cell line proliferation, highlighting its potential in preventing the development of CRC through the substantial suppression of gene expression within the cell cycle pathway
RAGE gene polymorphism (rs1800625) and type 1 diabetes mellitus: A potential new model for early diagnosis and risk prediction
Get PDFStudies have associated advanced glycation end-products (AGEs) and the polymorphism of the AGEs receptor (RAGE) gene with clinical disorders, such as diabetes, in certain ethnic groups. However, its association with type 1 diabetes mellitus (T1DM) in Egyptians has not yet been explored. The aim of this study was to investigate the association between the RAGE gene polymorphism rs1800625 and T1DM susceptibility in Egyptians. A case-control study was conducted with 177 T1DM patients and 177 age- and sex-matched healthy controls. Variables included glycemic markers (fasting blood glucose (FBG), postprandial blood glucose (PBG), hemoglobin A1c (HbA1c)), anthropometric measurements (waist circumference, body mass index (BMI)), lipid profile (total cholesterol, triglycerides, high-density lipoprotein (HDL), low-density lipoprotein (LDL)), renal function (albumin-to-creatinine ratio (A/C ratio), serum creatinine), and history of hypertension and smoking. Genotype distribution and allele frequency of the RAGE rs1800625 polymorphism (TT, TC, CC genotypes; T and C alleles) were assessed. This study identified the RAGE rs1800625 polymorphism as a significant genetic factor associated with T1DM susceptibility. The CC genotype was significantly more prevalent in patients compared to controls (29.9% vs 11.9%; OR: 3.62; 95%CI: 1.87–6.97; p<0.001). Similarly, the C allele was more common in patients (54.5% vs 41.0%, OR: 1.73; 95%CI: 1.28–2.33; p<0.001). Multivariate analysis revealed that HbA1c (adjusted OR (aOR): 12.97; 95%CI: 4.00–42.05; p<0.001), FBG (aOR: 8.96; 95%CI: 1.59–50.47; p=0.010), and the rs1800625 polymorphism (aOR: 1.82; 95%CI: 1.146–2.876, p=0.010) were significant predictors of T1DM. In conclusion, a genetic association was found between the RAGE gene polymorphism rs1800625 and T1DM susceptibility, with the CC genotype and C allele being more common in T1DM patients. FBG, HbA1c, and rs1800625 were identified as key predictors for T1DM, with HbA1c being the strongest. These findings highlight the importance of integrating genetic and metabolic factors in managing T1DM
Hybrid function of light fraction patchouli oil in hair care formulations for effective hair and anti-dandruff treatment
Get PDFHair issues, such as hair loss and dandruff, pose significant challenges in hair care. Patchouli oil, rich in bioactive components, has emerged as a promising candidate for addressing these concerns. The aim of this study was to investigate the hybrid functionality of fractionated patchouli oil in hair care formulations designed to promote hair growth and control dandruff caused by Malassezia globosa. Crude patchouli oil (CPO) was fractionated to enhance its efficacy, producing light fraction patchouli oil (LFPO), which was then characterized using gas chromatography-mass spectrometry (GC-MS) analysis. Hair tonic formulations containing three different LFPO concentrations (0.5%, 1.0%, and 1.5%) were developed and evaluated for stability, pH, viscosity, and antifungal activity against M. globosa. The results showed that LFPO contained 2.51% acid number, 0.70% ester number, 0.71 mg/kg iron content, and 25.88% patchoulol. The formulations exhibited stable physicochemical properties, with pH levels of 5.36–5.51 and viscosity ranging from 3.94 to 4.08 centipoise (cP), suitable for hair tonic applications. Formulation of 1.5% LFPO demonstrated the strongest antifungal activity, producing a 31.18±1.37 mm inhibition zone against M. globosa, surpassing ketoconazole (21.72±0.28 mm), suggesting potential as a natural antifungal agent. Histological analysis in rabbits revealed that 1.5% LFPO formulation reduced epidermal cell shedding, increased hair length by 41.6±0.35 mm after six weeks, and promoted dense hair follicle growth. This research provides a foundation for developing natural, effective, and stable hair care formulations. Despite these promising results, the efficacy and safety of LFPO formulations in humans remain unexplored. Therefore, a clinical human trial is necessary to assess skin tolerance, irritation risks, and long-term effects under real-world conditions