Unveiling innovative therapeutic strategies and future trajectories on stimuli-responsive drug delivery systems for targeted treatment of breast carcinoma

This comprehensive review delineates the latest advancements in stimuli-responsive drug delivery systems engineered for the targeted treatment of breast carcinoma. The manuscript commences by introducing mammary carcinoma and the current therapeutic methodologies, underscoring the urgency for innovative therapeutic strategies. Subsequently, it elucidates the logic behind the employment of stimuli-responsive drug delivery systems, which promise targeted drug administration and the minimization of adverse reactions. The review proffers an in-depth analysis of diverse types of stimuli-responsive systems, including thermoresponsive, pH-responsive, and enzyme-responsive nanocarriers. The paramount importance of material choice, biocompatibility, and drug loading strategies in the design of these systems is accentuated. The review explores characterization methodologies for stimuli-responsive nanocarriers and probes preclinical evaluations of their efficacy, toxicity, pharmacokinetics, and biodistribution in mammary carcinoma models. Clinical applications of stimuli-responsive systems, ongoing clinical trials, the potential of combination therapies, and the utility of multifunctional nanocarriers for the co-delivery of assorted drugs and therapies are also discussed. The manuscript addresses the persistent challenge of drug resistance in mammary carcinoma and the potential of stimuli-responsive systems in surmounting it. Regulatory and safety considerations, including FDA guidelines and biocompatibility assessments, are outlined. The review concludes by spotlighting future trajectories and emergent technologies in stimuli-responsive drug delivery, focusing on pioneering approaches, advancements in nanotechnology, and personalized medicine considerations. This review aims to serve as a valuable compendium for researchers and clinicians interested in the development of efficacious and safe stimuli-responsive drug delivery systems for the treatment of breast carcinoma.

NRF2-mediated regulation of lipid pathways in viral infection

The first line of defense against viral infection of the host cell is the cellular lipid membrane, which is also a crucial first site of contact for viruses. Lipids may sometimes be used as viral receptors by viruses. For effective infection, viruses significantly depend on lipid rafts during the majority of the viral life cycle. It has been discovered that different viruses employ different lipid raft modification methods for attachment, internalization, membrane fusion, genome replication, assembly, and release. To preserve cellular homeostasis, cells have potent antioxidant, detoxifying, and cytoprotective capabilities. Nuclear factor erythroid 2-related factor 2 (NRF2), widely expressed in many tissues and cell types, is one crucial component controlling electrophilic and oxidative stress (OS). NRF2 has recently been given novel tasks, including controlling inflammation and antiviral interferon (IFN) responses. The activation of NRF2 has two effects: it may both promote and prevent the development of viral diseases. NRF2 may also alter the host's metabolism and innate immunity during viral infection. However, its primary function in viral infections is to regulate reactive oxygen species (ROS). In several research, the impact of NRF2 on lipid metabolism has been examined. NRF2 is also involved in the control of lipids during viral infection. We evaluated NRF2's function in controlling viral and lipid infections in this research. We also looked at how lipids function in viral infections. Finally, we investigated the role of NRF2 in lipid modulation during viral infections.

LIGNOCELLULOSIC BIOMASS FOR BIOCHAR PRODUCTION: A GREEN INITIATIVE ON BIOWASTE CONVERSION FOR PHARMACEUTICAL AND OTHER EMERGING POLLUTANT REMOVAL

Lignocellulosic waste generation and their improper disposal has accelerated the problems associated with increased greenhouse gas emissions and associated environmental pollution. Constructive ways to manage and mitigate the pollution associated with lignocellulosic waste has propelled the research on biochar production using lignocellulose-based substrates. The sustainability of various biochar production technologies in employing lignocellulosic biomass as feedstock for biochar production not only aids in the lignocellulosic biomass valorization but also helps in carbon neutralization and carbon utilization. Functionalization of biochar through various physicochemical methods helps in improving their functional properties majorly by reducing the size of the biochar particles to nanoscale and modifying their surface properties. The usage of engineered biochar as nano adsorbents for environmental applications like dye absorption, removal of organic pollutants and endocrine disrupting compounds from wastewater has been the thrust areas of research in the past few decades. This review presents a comprehensive outlook on the up-to-date research findings related to the production and engineering of biochar from lignocellulosic biomass and their applications in environmental remediation especially with respect to wastewater treatment. Further a detailed discussion on various biochar activation methods and the future scope of biochar research is presented in this review work.

CdIn2Se4@chitosan heterojunction nanocomposite with ultrahigh photocatalytic activity under sunlight driven photodegradation of organic pollutants

This research focused on synthesizing a CdIn2Se4@Ch nanocomposite by doping CdIn2Se4 into chitosan using a photolysis assisted ultrasonic process. The aim was to enhance the photodegradation efficiency of ofloxacin and 2,4-dichlorophenoxyacetic acid under sunlight. The synthesized CdIn2Se4@Ch nanocomposite was investigated via different techniques, including XRD, XPS, FTIR, TEM, DSC, TGA, UV-Vis and PL. The study also investigated the influence of various reaction parameters, including the effects of inorganic and organic ions. The synthesized nanocomposite demonstrated exceptional efficiency, achieving 86 % and 95 % removal rates, with corresponding rate constants of 0.025 and 0.047 min-1. This performance surpasses that of CdIn2Se4 by approximately 1.35 and 2.25 times, respectively. The values of COD were decreased to 78 and 86 % for ofloxacin and 2,4-dichlorophenoxyacetic, while the TOC values decreased to 71 and 84 %, respectively, from their premier values. The improvement in performance is associated with the introduction of CdIn2Se4 into chitosan, resulting in the self-integration of Cd into the catalyst. This creates a localized accumulation point for electrons, enhancing the efficiency of charge separation and further reducing the surface charge of chitosan. Experimental evidence suggests that superoxide and hydroxyl radicals play a significant role in the photodegradation of pollutants. Additionally, the nanocomposite exhibits excellent stability and can be reused up to five times, indicating remarkable stability and reusability of the developed photocatalyst.

Pesticides impacts on human health and the environment with their mechanisms of action and possible countermeasures

Pesticides are chemical constituents used to prevent or control pests, including insects, rodents, fungi, weeds, and other unwanted organisms. Despite their advantages in crop production and disease management, the use of pesticides poses significant hazards to the environment and public health. Pesticide elements have now perpetually entered our atmosphere and subsequently contaminated water, food, and soil, leading to health threats ranging from acute to chronic toxicities. Pesticides can cause acute toxicity if a high dose is inhaled, ingested, or comes into contact with the skin or eyes, while prolonged or recurrent exposure to pesticides leads to chronic toxicity. Pesticides produce different types of toxicity, for instance, neurotoxicity, mutagenicity, carcinogenicity, teratogenicity, and endocrine disruption. The toxicity of a pesticide formulation may depend on the specific active ingredient and the presence of synergistic or inert compounds that can enhance or modify its toxicity. Safety concerns are the need of the hour to control contemporary pesticide-induced health hazards. The effectiveness and implementation of the current legislature in providing ample protection for human health and the environment are key concerns. This review explored a comprehensive summary of pesticides regarding their updated impacts on human health and advanced safety concerns with legislation. Implementing regulations, proper training, and education can help mitigate the negative impacts of pesticide use and promote safer and more sustainable agricultural practices.

Phytoremediation potential of Pistia stratiotes, Eichhornia crassipes, and Typha latifolia for chromium with stimulation of secondary metabolites

Anthropogenic activities have significantly polluted the natural environments all over the world. Leather processing industries release toxic heavy metals through their effluents posing a great threat to the environment. Chromium (Cr) is the major component of tannery effluents. We designed this experiment with the aim to remediate Cr from effluents of tanneries through phytoremediation. We selected three native macrophytes i.e. Pistia stratiotes, Eichhornia crassipes, and Typha latifolia to grow in a set of Constructed Wetland systems (CWs) with a continuous supply of tannery wastewater. T. latifolia was the most efficient phytoremediator of these macrophytes as it reduced the Cr content by 96.7%. The effluent after passing through the CWs containing T. latifolia showed only 0.426 mg/L Cr content. All macrophytes showed an enhanced phytochemical activity such as total antioxidant activity (TAA), total reduction potential (TRP), total phenolic content (TPC), total flavonoid content (TFC), and DPPH radical scavenging activity (DPPH) substantially. The activation of antioxidant mechanism may have contributed towards robust defense system of these plants for survival in excessive Cr contaminated media. Also, these macrophytes showed a positive relationship in reducing Cr content from tannery wastewater. Results of this study could help in effective sustainable management of aquatic environments contaminated with metal pollutants from human activities.

Polyethylene terephthalate waste derived nanomaterials (WDNMs) and its utilization in electrochemical devices

Plastics are a vital component of our daily lives in the contemporary globalization period; they are present in all facets of modern life. Because the bulk of synthetic plastics utilized in the market are non-biodegradable by nature, the issues associated with their contamination are unavoidable in an era dominated by polymers. Polyethylene terephthalate (PET), which is extensively used in industries such as automotive, packaging, textile, food, and beverages production represents a major share of these non-biodegradable polymer productions. Given its extensive application across various sectors, PET usage results in a considerable amount of post-consumer waste, majority of which require disposal after a certain period. However, the recycling of polymeric waste materials has emerged as a prominent topic in research, driven by growing environmental consciousness. Numerous studies indicate that products derived from polymeric waste can be converted into a new polymeric resource in diverse sectors, including organic coatings and regenerative medicine. This review aims to consolidate significant scientific literatures on the recycling PET waste for electrochemical device applications. It also highlights the current challenges in scaling up these processes for industrial application.

A review of recent advancement in covalent organic framework (COFs) synthesis and characterization with a focus on their applications in antibacterial activity

The primary objective of this review is to present a comprehensive examination of the synthesis, characterization, and antibacterial applications of covalent organic frameworks (COFs). COFs represent a distinct category of porous materials characterized by a blend of advantageous features, including customizable pore dimensions, substantial surface area, and adaptable chemical properties. These attributes position COFs as promising contenders for various applications, notably in the realm of antibacterial activity. COFs exhibit considerable potential in the domain of antibacterial applications, owing to their amenability to functionalization with antibacterial agents. The scientific community is actively exploring COFs that have been imbued with metal ions, such as copper or silver, given their observed robust antibacterial properties. These investigations strongly suggest that COFs could be harnessed effectively as potent antibacterial agents across a diverse array of applications. Finally, COFs hold immense promise as a novel class of materials for antibacterial applications, shedding light on the synthesis, characterization, and functionalization of COFs tailored for specific purposes. The potential of COFs as effective antibacterial agents beckons further exploration and underscores their potential to revolutionize antibacterial strategies in various domains.

Potential use of proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibition and prevention method in viral infection

Cellular lipid membranes serve as the primary barrier preventing viral infection of the host cell and provide viruses with a critical initial point of contact. Occasionally, viruses can utilize lipids as viral receptors. Viruses depend significantly on lipid rafts for infection at virtually every stage of their life cycle. The pivotal role that proprotein convertase subtilisin/kexin Type 9 (PCSK9) plays in cholesterol homeostasis and atherosclerosis, primarily by post-transcriptionally regulating hepatic low-density lipoprotein receptor (LDLR) and promoting its lysosomal degradation, has garnered increasing interest. Conversely, using therapeutic, fully humanized antibodies to block PCSK9 leads to a significant reduction in high LDL cholesterol (LDL-C) levels. The Food and Drug Administration (FDA) has approved PCSK9 inhibitors, including inclisiran (Leqvio®), alirocumab (Praluent), and evolocumab (Repatha). At present, active immunization strategies targeting PCSK9 present a compelling substitute for passive immunization through the administration of antibodies. In addition to the current inquiry into the potential therapeutic application of PCSK9 inhibition in human immunodeficiency virus (HIV)-infected patients for hyperlipidemia associated with HIV and antiretroviral therapy (ART), preclinical research suggests that PCSK9 may also play a role in inhibiting hepatitis C virus (HCV) replication. Furthermore, PCSK9 inhibition has been suggested to protect against dengue virus (DENV) potentially and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viruses. Recent evidence regarding the impact of PCSK9 on a variety of viral infections, including HCV, HIV, DENV, and SARS-CoV-2, is examined in this article. As a result, PCSK9 inhibitors and vaccines may serve as viable host therapies for viral infections, as our research indicates that PCSK9 is significantly involved in the pathogenesis of viral infections.

Assessing the efficacy of cinnamon compounds against H. pylori through molecular docking, MD Simulations and ADMET analyses

Antibiotics are the drugs that are used for the management of microbial diseases. However, these conventional synthetic drugs can harmfully affect the human health. Since phytochemicals are extracted from natural sources and, are hence relatively safer for human health, they are the enticing alternatives in this regard. Cinnamon is also one of those plants which is being employed as herbal medication for centuries against certain microbial infections due its significant therapeutic effectiveness. A well-known pathogenic bacterium called H. pylori causes a wide range of illnesses in human body. This pathogen's pathogenicity is determined by certain virulent proteins. In this study, some of such proteins, which included virB4, virB8, and virB9 were selected to evaluate the therapeutic efficiency of cinnamon compounds. These proteins were identified in different isolates of H. pylori. The structural modelling of all these proteins were performed initially in order to proceed them for molecular docking analysis. While, the docking studies illustrated that one of the cinnamon compounds, cinnamyl acetate, showed significant binding interactions with virB4 and virB9. However, benzyl benzoate which is another cinnamon compound, docked well with virB8. Afterwards, the MD simulations were incorporated to explore the interaction motions and structural stability of all the docked complexes. In this regard, the resultant maps of Bfactor, eigenvalues and elastic network model, among other factors ensured the structural stabilities of all the respective complexes. After these crucial estimations, benzyl benzoate and cinnamyl acetate underwent the ADMET investigation to assess their pharmacokinetic characteristics. SwissADME and ADMETLab 2.0 server were employed for this investigation. The compiled findings these servers revealed that both, benzyl benzoate and cinnamyl acetate, exhibited a significant level of pharmacokinetic and drug-likeness conformity.

Recent advances in nanotechnology-based modifications of micro/nano PET plastics for green energy applications

Poly(ethylene terephthalate) (PET) plastic is an omnipresent synthetic polymer in our lives, which causes negative impacts on the ecosystem. It is crucial to take mandatory action to control the usage and sustainable disposal of PET plastics. Recycling plastics using nanotechnology offers potential solutions to the challenges associated with traditional plastic recycling methods. Nano-based degradation techniques improve the degradation process through the influence of catalysts. It also plays a crucial role in enhancing the efficiency and effectiveness of recycling processes and modifying them into value-added products. The modified PET waste plastics can be utilized to manufacture batteries, supercapacitors, sensors, and so on. The waste PET modification methods have massive potential for research, which can play major role in removing post-consumer plastic waste. The present review discusses the effects of micro/nano plastics in terrestrial and marine ecosystems and its impacts on plants and animals. Briefly, the degradation and bio-degradation methods in recent research were explored. The depolymerization methods used for the production of monomers from PET waste plastics were discussed in detail. Carbon nanotubes, fullerene, and graphene nanosheets synthesized from PET waste plastics were delineated. The reuse of nanotechnologically modified PET waste plastics for potential green energy storage products, such as batteries, supercapacitors, and sensors were presented in this review.

Advances in two-dimensional transition metal dichalcogenides-based sensors for environmental, food, and biomedical analysis: A review

Transition metal dichalcogenides (TMDCs) are versatile two-dimensional (2D) nanomaterials used in biosensing applications due to their excellent physical and chemical properties. Due to biomaterial target properties, biosensors' most significant challenge is improving their sensitivity and stability. In environmental analysis, TMDCs have demonstrated exceptional pollutant detection and removal capabilities. Their high surface area, tunable electronic properties, and chemical reactivity make them ideal for sensors and adsorbents targeting various contaminants, including heavy metals, organic pollutants, and emerging contaminants. Furthermore, their unique electronic and optical properties enable sensitive detection techniques, enhancing our ability to monitor and mitigate environmental pollution. In the food analysis, TMDCs-based nanomaterials have shown remarkable potential in ensuring food safety and quality. These nanomaterials exhibit high specificity and sensitivity for detecting contaminants, pathogens, and adulterants in various food matrices. Their integration into sensor platforms enables rapid and on-site analysis, reducing the reliance on centralized laboratories and facilitating timely interventions in the food supply chain. In biomedical studies, TMDCs-based nanomaterials have demonstrated significant strides in diagnostic and therapeutic applications. Their biocompatibility, surface functionalization versatility, and photothermal properties have paved the way for novel disease detection, drug delivery, and targeted therapy approaches. Moreover, TMDCs-based nanomaterials have shown promise in imaging modalities, providing enhanced contrast and resolution for various medical imaging techniques. This article provides a comprehensive overview of 2D TMDCs-based biosensors, emphasizing the growing demand for advanced sensing technologies in environmental, food, and biomedical analysis.

Methanol extract of Iraqi Kurdistan Region Daphne mucronata as a potent source of antioxidant, antimicrobial, and anticancer agents for the synthesis of novel and bioactive polyvinylpyrrolidone nanofibers

In this study, aqueous, ethanol, methanol, and hexane extracts from Iraqi Kurdistan Region Daphne mucronata were prepared due to the numerous applications and development of nanofibers in biological and medical fields, including food packaging, enzyme stabilization, and wound dressing. In the initial evaluation of the extracts, the antioxidant properties against DPPH, antimicrobial properties against 3-gram-positive bacterial species, 3-gram negative bacterial species, 3-common bacterial species between aquatic and human, and 3-fungal species, and anticancer properties against breast cancer cells were performed. The results proved that the methanol extract has the highest antimicrobial, antifungal, antioxidant, and anticancer properties. After identifying the compounds of prepared methanol extract using GC/MS, polyvinylpyrrolidone nanofibers containing methanol extract of Daphne mucronata were prepared. The structure and characteristics of prepared nanofibers were confirmed and determined using FTIR, TGA, BET, SEM, flexural strength, compressive strength, and hydrophilicity. Synthesized polyvinylpyrrolidone nanofibers containing methanol extract of D. mucronata were subjected to antimicrobial properties on the strains studied in methanol extract of D. mucronata. The antimicrobial properties of synthesized polyvinylpyrrolidone nanofibers containing methanol extract of D. mucronata were compared. The results showed that synthesized polyvinylpyrrolidone nanofibers containing methanol extract of D. mucronata have the potential to introduction bioactive natural synthesis nanoparticles.

Prevalence, attitudes, and practices of dietary supplements among middle-aged and older adults in Asir region, Saudi Arabia: A cross-sectional study

The objectives of this study were to 1) identify the prevalence of dietary supplements (DS) among middle-aged and older adults; 2) determine attitudes toward DS and patterns of DS usage among middle-aged and older adults; and 3) assess the association of sociodemographic, clinical, and lifestyle factors with DS attitudes and DS usage. A cross-sectional online survey was undertaken among middle-aged and older adults. Data were collected by an online self-administered pretested questionnaire used as a study tool and distributed to respondents via social media applications. The DS usage prevalence among 501 respondents was 50.7%, and 53.5% of participants reported a positive attitude toward DS. The positive attitudes and higher usage of dietary supplements were statistically significant in higher proportions among older adults compared to middle-aged individuals. Significantly lower proportion of middle aged (54.9%) reported taking DS daily compared to 59.9% of older adults. A significant difference in the type of DS among the two groups was found for Omega-3 (p<0.001), minerals (p = 0.004), proteins (p = 0.002), fibers (p = 0.002), phytonutrients (p = 0.007), and probiotics (p = 0.015), with a higher proportion of middle-aged respondents reporting their use compared to older adults. Dietary supplement usage is a prevalent phenomenon among older adults and the middle-aged population. However, some undesirable practices regarding their use still exist in the community. Thus, there is a need of focussed health education to enhance attitudes and improve practices regarding the use of DS.

Newborn Care Practices and Associated Factors Influencing Their Health in a Northern Rural India

INTRODUCTION

In developing countries, neonatal mortality is the most neglected health issue by the health system, leading to its emergence as a public health problem. A study was undertaken to assess the influence of factors and newborn care practices influencing newborn health in the rural area of Bareilly district.

METHODOLOGY

The descriptive cross-sectional study was organized in the rural areas of Bareilly. Study participants were selected based on the mothers who gave birth to a baby during the last six months. The mothers who delivered in that area within six months were included and, using the semi-structured questionnaire, data were collected. Data were analyzed using Microsoft Excel and SPSS 2021 version for windows.

RESULTS

Out of 300 deliveries, nearly one-quarter of the deliveries, 66 (22%), were happening in homes, and most of the deliveries, 234 (78%), happened in hospitals. It was observed that unsafe cord care practices were observed more among nuclear families, 8 (53.4%), than joint families, 7 (46.6%), and it was found to be statistically insignificant. The Unsafe feed was given 48 (72.7%) more commonly among home deliveries than institutional deliveries 56 (23.9%). Mothers' initiation of delayed breastfeeding was nearly the same in both home and hospital deliveries. Delayed bathing was observed in nearly three-fourths of mothers, 125 (70.1%), aged 24-29 years, followed by 29 (16.8%) in the age period of 30-35 years.

CONCLUSION

The practice of essential newborn care still needs to improve in Bareilly; there is a need to create awareness among the mothers and family members on newborn and early neonatal care aspects, such as promoting exclusive and early initiation of breastfeeding and delayed bathing practices.

In-silico approaches for identification of compounds inhibiting SARS-CoV-2 3CL protease

The world has witnessed of many pandemic waves of SARS-CoV-2. However, the incidence of SARS-CoV-2 infection has now declined but the novel variant and responsible cases has been observed globally. Most of the world population has received the vaccinations, but the immune response against COVID-19 is not long-lasting, which may cause new outbreaks. A highly efficient pharmaceutical molecule is desperately needed in these circumstances. In the present study, a potent natural compound that could inhibit the 3CL protease protein of SARS-CoV-2 was found with computationally intensive search. This research approach is based on physics-based principles and a machine-learning approach. Deep learning design was applied to the library of natural compounds to rank the potential candidates. This procedure screened 32,484 compounds, and the top five hits based on estimated pIC50 were selected for molecular docking and modeling. This work identified two hit compounds, CMP4 and CMP2, which exhibited strong interaction with the 3CL protease using molecular docking and simulation. These two compounds demonstrated potential interaction with the catalytic residues His41 and Cys154 of the 3CL protease. Their calculated binding free energies to MMGBSA were compared to those of the native 3CL protease inhibitor. Using steered molecular dynamics, the dissociation strength of these complexes was sequentially determined. In conclusion, CMP4 demonstrated strong comparative performance with native inhibitors and was identified as a promising hit candidate. This compound can be applied in-vitro experiment for the validation of its inhibitory activity. Additionally, these methods can be used to identify new binding sites on the enzyme and to design new compounds that target these sites.

Impact of an Alcohol-based hand sanitizer usage during COVID-19 pandemic on disulfiram treatment: A South Indian psychiatrist's practice experiences

Background: Alcohol-based hand sanitizer (ABHS) usage has become one of the COVID-19 pandemic-related adapted responses. Some disulfiram-ethanol reactions are reported in people who use alcohol-based hand rub/sanitizer and take Disulfiram as a treatment for their alcohol use disorders. Aim & Objective: To determine the practice experiences of psychiatrists on disulfiram prescription to alcohol use disorder victims. Methodology: A cross-sectional study on the psychiatrists to find the experiences of disulfiram prescription to their clients with alcohol use disorders during the COVID-19 pandemic. Results: Nearly 84 (51%) were reverted with a completed questionnaire. Among the respondents, 28 (33.3%) of the respondents decreased to prescribe Disulfiram, 48 (57.1%) reported that their patients stopped using ABHS due to fear of Disulfiram-Ethanol Reaction (DER), and 20 (23.8%) responders notified that their patients were expressed their worry on DER with Disulfiram and ABHS. Conclusion: Disulfiram prescribed for alcohol use disorders; treatment got peculiar experiences with the incidences of DER reported with Alcohol-based hand sanitizer. Many practitioners were scared to prescribe disulfiram due to DER with ABHS. The prevailing evidence that there is no possibility of cutaneous application of ABHS producing enough significant DER. Hence using ABHS is not a contraindication for disulfiram prescription.

Hyaluronic acid-based nanofibers: Electrospun synthesis and their medical applications; recent developments and future perspective

Hyaluronan is a biodegradable, biopolymer that represents a major part of the extracellular matrix and has the potential to be fabricated in a fibrous form conjugated with other polymers via electrospinning. Unique physicochemical features such as viscoelasticity, conductivity, and biological activity mainly affected by molecular weight attracted the attention of biomedical researchers to utilize hyaluronan for designing novel HA-based nano-devices. Particularly HA-based nanofibers get focused on a diverse range of applications in medical like tissue implants for regeneration of damaged tissue or organ repair, wound dressings, and drug delivery carriers to treat various disorders. Currently, electrospinning represents an effective available method for designing highly porous, 3D, HA-based nanofibers with features similar to that of the extra-cellular matrix making them a promising candidate for designing advanced regenerative medicines. This review highlights the structural and physicochemical features of HA, recently cited protocols in literature for HA production via microbial fermentation with particular focus on electrospun fabrication of HA-based nanofibers and parameters affecting its synthesis, current progress in medical applications of these electrospun HA-based nanofibers, their limitations and future perspective about the potential of these HA-based nanofibers in medical field.

Role of bioactive compounds in the treatment of hepatitis: A review

Hepatitis causes liver infection leading to inflammation that is swelling of the liver. They are of various types and detrimental to human beings. Natural products have recently been used to develop antiviral drugs against severe viral infections like viral hepatitis. They are usually extracted from herbs or plants and animals. The naturally derived compounds have demonstrated significant antiviral effects against the hepatitis virus and they interfere with different stages of the life cycle of the virus, viral release, replication, and its host-specific interactions. Antiviral activities have been demonstrated by natural products such as phenylpropanoids, flavonoids, xanthones, anthraquinones, terpenoids, alkaloids, aromatics, etc., against hepatitis B and hepatitis C viruses. The recent studies conducted to understand the viral hepatitis life cycle, more effective naturally derived drugs are being produced with a promising future for the treatment of the infection. This review emphasizes the current strategies for treating hepatitis, their shortcomings, the properties of natural products and their numerous types, clinical trials, and future prospects as potential drugs.

Preparedness for the Dengue Epidemic: Vaccine as a Viable Approach

Dengue fever is one of the significant fatal mosquito-borne viral diseases and is considered to be a worldwide problem. Aedes mosquito is responsible for transmitting various serotypes of dengue viruses to humans. Dengue incidence has developed prominently throughout the world in the last ten years. The exact number of dengue cases is underestimated, whereas plenty of cases are misdiagnosed as alternative febrile sicknesses. There is an estimation that about 390 million dengue cases occur annually. Dengue fever encompasses a wide range of clinical presentations, usually with undefinable clinical progression and outcome. The diagnosis of dengue depends on serology tests, molecular diagnostic methods, and antigen detection tests. The therapeutic approach relies completely on supplemental drugs, which is far from the real approach. Vaccines for dengue disease are in various stages of development. The commercial formulation Dengvaxia (CYD-TDV) is accessible and developed by Sanofi Pasteur. The vaccine candidate Dengvaxia was inefficient in liberating a stabilized immune reaction toward different serotypes (1-4) of dengue fever. Numerous promising vaccine candidates are now being developed in preclinical and clinical stages even though different serotypes of DENV exist that worsen the situation for a vaccine to be equally effective for all serotypes. Thus, the development of an efficient dengue fever vaccine candidate requires time. Effective dengue fever management can be a multidisciplinary challenge, involving international cooperation from diverse perspectives and expertise to resolve this global concern.

A novel approach based on the ultrasonic-assisted microwave method for the efficient synthesis of Sc-MOF@SiO2 core/shell nanostructures for H2S gas adsorption: A controllable systematic study for a green future

In this work, for the first time, novel Sc-MOF@SiO₂ core/shell nanostructures have been synthesized under the optimal conditions of ultrasonic-assisted microwave routes. The final products showed small particle size distributions with homogeneous morphology (SEM results), high thermal stability (TG curve), high surface area (BET adsorption/desorption techniques), and significant porosity (BJH method). The final nanostructures of Sc-MOF@SiO₂ core/shell with such distinct properties were used as a new compound for H₂S adsorption. It was used with the systematic investigation based on a 2^K−1 factorial design, which showed high-performance adsorption of about 5 mmol/g for these novel adsorbents; the optimal experimental conditions included pressure, 1.5 bar; contact time, 20 min; and temperature, 20°C. This study and its results promise a green future for the potential control of gas pollutants.

Modulatory role of dietary curcumin and resveratrol on growth performance, serum immunity responses, mucus enzymes activity, antioxidant capacity and serum and mucus biochemicals in the common carp, Cyprinus carpio exposed to abamectin

In this study, we investigate the potentials of dietary curcumin and resveratrol on blood biochemistry, immune responses and resistance to the toxicity of the pesticide, abamectin. 540 common carps (30.78 ± 0.17 g) were randomly distributed into 18 tanks (30 fish per tank), as six experimental groups (T1: non-supplemented and on-exposed fish, T2: 300 mg/kg curcumin, T3: 300 mg/kg resveratrol, T4: 12.5% LC₅₀ of abamectin, T5: 300 mg/kg curcumin +12.5% LC₅₀ of abamectin, T6: 300 mg/kg resveratrol + 12.5% LC₅₀ of abamectin). Use of 300 mg/kg resveratrol in the diet of non-abamectin exposed fish improved the growth performance (P < 0.05), while such effects were not observed for curcumin (P > 0.05). There were no differences in the final weight (FW), feed conversion ratio (FCR) and weight gain (WG) between control and fish of the treatments, resveratrol + abamectin and curcumin + abamectin (P < 0.05). The immune components in blood [lysozyme, complement activity, Total immunoglobulin (total Ig), protease, myeloperoxidase (MPO), nitro-blue-tetrazolium (NBT), peroxidase, albumin] and mucus [acid phosphatase (ACP), alkaline phosphatase (ALP), esterase, antiprotease)] and antioxidant enzymes [(superoxide dismutase (SOD), glutathione peroxidase (GPx)] exhibited various change patterns compared to the control group, however, these components were almost all higher in fish supplemented with curcumin and resveratrol in an abamectin-free medium than in control and other groups (P < 0.05). In most cases, the levels of immune and antioxidant components in the control did not show significant difference with the treatments, resveratrol + abamectin and curcumin + abamectin (P > 0.05). Abamectin induced oxidative stress in fish, as the malondialdehyde (MDA) levels significantly increased in the exposed fish compared to non-exposed groups (P < 0.05). It appears that neither curcumin nor resveratrol were as effective in preventing oxidative stress, because MDA levels were higher in exposed fish (abamectin, curcumin + abamectin, resveratrol + abamectin) than in control and non-exposed individuals (P < 0.05). Curcumin and resveratrol also showed protective effects on liver, since the levels of liver metabolic enzymes [aspartate transaminase (AST), ALP, lactate dehydrogenase (LDH)] were lower in the supplemented fish in a abamectin-free medium than in control (P < 0.05). Curcumin and resveratrol also mitigated the stress responses in the exposed fish, as cortisol and glucose levels showed significant decreases in the supplemented fish (P < 0.05). In conclusion, this study revealed that abamectin can depress the growth and immunity in the common carp. Although, both resveratrol and curcumin were mitigated the toxic effects of abamectin, it seems that resveratrol be more effective than curcumin.

A β-Sitosterol Encapsulated Biocompatible Alginate/Chitosan Polymer Nanocomposite for the Treatment of Breast Cancer

β−sitosterol is the most abundant type of phytosterol or plant sterol and can be found in various plant dietary sources including natural oils, soy products, and nuts. Numerous studies have demonstrated the potential therapeutic and clinical applications of β−sitosterol including lowering low-density lipoprotein and cholesterol levels, scavenging free radicals in the body, and interestingly, treating and preventing cancer. This study focuses on synthesizing and characterizing β−sitosterol encapsulated Alginate/Chitosan nanoparticles (β−sito−Alg/Ch/NPs) and evaluating their effectiveness in breast cancer treatment and their pharmacokinetic profile in vivo. The synthesized NPs, which incurred a mean size of 25 ± 1 nm, were extensively characterized in vitro for various parameters including surface charge and morphology. The NPs were further analyzed using DSC, FT-IR, thermogravimetry and X-ray diffraction studies. The release of β−sito from NPs was carried out in a bio-relevant medium of pH 7.4 and pH 5.5 and samples were drawn off and analyzed under time frames of 0, 8, 16, 32, 64, 48, 80, and 96 h, and the best kinetic release model was developed after fitting drug release data into different kinetic models. The metabolic activity of MCF-7 cells treated with the prepared formulation was assessed. The radical scavenging potential of β−sito−Alg/Ch/NPs was also studied. The pharmacokinetic parameters including Cmax, Tmax, half-life (t1/2), and bioavailability were measured for β−sito−Alg/Ch/NPs as compared to β−sito−suspension. The β−sito−Alg/Ch/NPs stability was assessed at biological pH 7.4. The % drug release in PBS of pH 7.4 reportedly has shown 41 ± 6% vs. 11 ± 1% from β−sito−Alg/Ch/NPs and β−sito−suspension. In acidic pH 5.5 mimicking the tumor microenvironment has shown 75 ± 9% vs. 12 ± 4% drug release from β−sito−Alg/Ch/NPs and β−sito−suspension. When compared to the β−sito−suspension, the β−sito−Alg/Ch/NPs demonstrated greater cytotoxicity (p < 0.05) and ~3.41-fold higher oral bioavailability. Interestingly, this work demonstrated that β−sito−Alg/Ch/NPs showed higher cytotoxicity due to improved bioavailability and antioxidant potential compared to the β−sito−suspension.

Application of fractional optimal control theory for the mitigating of novel coronavirus in Algeria

In this paper, we investigate the dynamics of novel coronavirus infection (COVID-19) using a fractional mathematical model in Caputo sense. Based on the spread of COVID-19 virus observed in Algeria, we formulate the model by dividing the infected population into two sub-classes namely the reported and unreported infective individuals. The existence and uniqueness of the model solution are given by using the well-known Picard-Lindelöf approach. The basic reproduction number R 0 is obtained and its value is estimated from the actual cases reported in Algeria. The model equilibriums and their stability analysis are analyzed. The impact of various constant control parameters is depicted for integer and fractional values of α . Further, we perform the sensitivity analysis showing the most sensitive parameters of the model versus R 0 to predict the incidence of the infection in the population. Further, based on the sensitivity analysis, the Caputo model with constant controls is extended to time-dependent variable controls in order obtain a fractional optimal control problem. The associated four time-dependent control variables are considered for the prevention, treatment, testing and vaccination. The fractional optimality condition for the control COVID-19 transmission model is presented. The existence of the Caputo optimal control model is studied and necessary condition for optimality in the Caputo case is derived from Pontryagin's Maximum Principle. Finally, the effectiveness of the proposed control strategies are demonstrated through numerical simulations. The graphical results revealed that the implantation of time-dependent controls significantly reduces the number of infective cases and are useful in mitigating the infection.

Seed nano-priming with Zinc Oxide nanoparticles in rice mitigates drought and enhances agronomic profile

All cereal crops, particularly rice are perpetually affected due to drastic climatic changes which triggers different stressors resulting in food shortage scenarios across the globe. In modern era, application of nanotechnology holds the pledge in combating the climate change mediated environmental stressors through nanomaterials such as pesticides, nano-biosensors, nano-clays and nano-seed priming technologies. Current study is a part of experiment conducted to comprehend the behaviour of rice plants raised from Zinc Oxide nanoparticles (ZnONPs) primed seeds under the water shortage environment. The seed priming treatment concentrations included 0, 5, 10, 15, 25 and 50 ppm. In the experimental results an increase in plant height, total chlorophyll contents, plant fresh and dry weights was obtained by use of seed priming with ZnONPs. The study results proved that seed priming with 25ppm of ZnONPs increased seed and straw yield with value of 85.333 and 123.333, respectively under water deficit environment. The analysis depicted that 25 ppm has been found more suitable for increasing the 1000 paddy weight of rice plants under both well irrigated and water shortage conditions. Seed priming with ZnONPs results in 53% reduction in MDA contents of water stressed rice plants Drought stress leads to reduction in plant height by 31%, plant fresh weight by 22% and plant dry weight by 28%. Seed priming treatments imparted in current study show significance increase in plant biomass. Priming with ZnONPs further enhances the levels of proline amino acid facilitating the plant to combat water shortage stress. A further elevation in activities of SOD, CAT and POD takes place in rice plants raised from ZnONPs primed seeds by 11%, 13% and 38%, respectively. An elevation in activities of antioxidant enzymes was found and the levels of oxidative stress indicators decreased upon seed priming with ZnONPs. Furthermore the yield characteristics such as panicle length, number of tillers, paddy yield and straw yield of the rice plants raised through ZnONPs primed seeds enhanced. The ZnONPs at concentration of 25 ppm proved optimum in alleviating drought induced damages. It can be inferred that seed pre conditioning with ZnONPs is helpful in increasing yield attributes under the water shortage environment.

Advancement and New Trends in Analysis of Pesticide Residues in Food: A Comprehensive Review

Food safety is a rising challenge worldwide due to the expanding population and the need to produce food to feed the growing population. At the same time, pesticide residues found in high concentrations in fresh agriculture pose a significant threat to food safety. Presently, crop output is being increased by applying herbicides, fungicides, insecticides, pesticides, fertilizers, nematicides, and soil amendments. A combination of factors, including bioaccumulation, widespread usage, selective toxicity, and stability, make pesticides among the most toxic compounds polluting the environment. They are especially harmful in vegetables and fruits because people are exposed to them. Thus, it is critical to monitor pesticide levels in fruits and vegetables using all analytical techniques available. Any evaluation of the condition of pesticide contamination in fruits and vegetables necessitates knowledge of maximum residue levels (MRLs). We set out the problems in determining various types of pesticides in vegetables and fruits, including the complexity and the diversity of matrices in biological materials. This review examines the different analytical techniques to determine the target analytes that must be isolated before final consumption. Many processes involved determining pesticide residues in fruits and vegetables and their advantages and disadvantages have been discussed with recommendations. Furthermore, MRLs of target pesticide residues in fruit and vegetable samples are discussed in the context of data from the literature. The review also examines MRLs' impact on the international trade of fruits and vegetables. Accurate, sensitive, and robust analytical procedures are critical to ensuring that pesticide levels in food products are effectively regulated. Despite advances in detection technology, effective sample preparation procedures for pesticide residue measurement in cereals and feedstuffs are still needed. In addition, these methods must be compatible with current analytical techniques. Multi-residue approaches that cover a wide range of pesticides are desired, even though pesticides' diverse natures, classes, and physio-chemical characteristics make such methods challenging to assemble. This review will be valuable to food analysts and regulatory authorities to monitor the quality and safety of fresh food products.

An analytical study about the operational effectiveness of the Covid Control Room in a Medical College of Northern India

Muzzafarnagar Medical College (MMC), Muzzafarnagar was declared a designated covid hospital by the Uttar Pradesh State Government. A Covid Control Room (CCR) was hence established to manage the disaster.  Aims & Objectives: The CCR worked as the operational brain of MMC. Study Setting: Muzzafarnagar Medical College, Muzzafarnagar, Uttar Pradesh, India. Study Design: A hospital record based observational study. Material Methods: A total of 1132 admitted covid positive patients in three months constituted the study population. The CCTV cameras were installed inside the isolation wards, and the ICUs with 24/7 video coverage. The DGME (Uttar Pradesh) developed the Patient Information System (PIS) wherein information was uploaded in a database   and WhatsApp messages were sent to the relatives twice daily. Results: The CCR received on an average 200 calls per day. A total of 12,622 calls were received in two months. With, PIS in function the no. of calls received in CCR reduced drastically. 100% coverage of the patients’ information was achieved. Conclusion: The scope of the control room has expanded considerably to address various aspects of the covid-19 pandemic crisis. These findings will be helpful as a reference for future. It is one of the first studies and unique in nature.

COVID-19 Vaccine Acceptance: Beliefs and Barriers Associated with Vaccination Among the Residents of KSA

INTRODUCTION

COVID-19 was declared a pandemic in March 2020 by the World Health Organization. Control of COVID-19 depends on the potential vaccine and its successful delivery to a large portion of the population to develop herd immunity. All the governments have made a robust plan to distribute the vaccine to their people, but many countries could not achieve adequate vaccination coverage. Hence, this study explores people's beliefs and barriers to vaccination and provides valuable inputs to the government to attain adequate vaccination.

OBJECTIVE

To know the knowledge level about the COVID-19 vaccine among the residents of KSA. To find out the various concerns (beliefs) about COVID-19 and its vaccine among the residents of KSA. To estimate the vaccine acceptance and understand the barriers to accepting the COVID-19 vaccine among residents of KSA.

MATERIALS AND METHODS

A web-based, cross-sectional study was conducted from April to June 2021 in a restricted environment on the adult (>18 years) residents of Saudi Arabia. The minimum calculated sample was 685; 796 study samples were finally studied to minimize the sampling error. Snowball sampling was used to select the study samples, after meeting the inclusion criteria.

RESULTS

A total of 796 people responded. Only 782 (98.2%) were finally considered after excluding the incomplete information forms. The selected participant's age ranges from 18 years to 80 years. Almost 723 (92%) of the study group knew COVID vaccines. Most of the participants, 370 (47%), preferred USA-manufactured vaccine followed by Saudi Arabia 217 (28%). A total of 259 (33.1%) participants were hesitant to receive the vaccine. Out of 782, half of the participants, 386 (50%), believed the COVID vaccine will prevent the infection.

CONCLUSION

The government must implement appropriate culturally accepted interventional vaccination educational campaigns to remove the beliefs, worries regarding the safety and efficacy of COVID-19 vaccines, to increase vaccine acceptance rates.

Readiness for cancer cervix control in a North Indian population: Identifying the gaps

Background: Cancer of the cervix is the most common cause of cancer-related deaths amongst women in India. Apart from the availability of healthcare services, awareness and attitude, the cornerstone of public health measures such as screening and vaccination are useful in the control of cervical cancer. There is a lack of studies regarding cervical cancer in the selected region. Objectives: To assess the knowledge of cervical cancer and its associated factors amongst rural women in a densely populated state of Northern India. Methodology: This cross-sectional study was undertaken for a period of one year, i.e., from April 2018 to March 2019, in five randomly selected villages of the Bakshi Ka Talab Block of District Lucknow, Uttar Pradesh. Systematic random sampling was performed to include females aged 15 years and above by a house to house survey. Trained social workers interviewed the consenting participants using a self-structured, pretested and validated questionnaire. The suitable statistical test was used to analyze the data. Results: The majority of the participants (n=300) were aged between 20- 24 years, and the mean age was 28.5 years. Sixty-four per cent of the females were married, and round 43.7% belonged to lower socioeconomic class. Nearly one third reported to have not heard of cervical cancer previously. The knowledge of the various aspects of cancer cervix varied from 3.2% to 55.3%. The most frequently recognized risk factors were early pregnancy (15.7%), giving birth to ≥ 3 children (13.2%) and early sexual initiation (11.7%). Majority of respondents (56.4 per cent) reported weakness to be the most common effect of leucorrhoea. Nearly half of females falsely perceived the actual cause of the leucorrhoea as excess heat in the body. None of the participants had either undergone screening for cervical cancer or had received HPV vaccination despite the availability of healthcare facilities within 30 kilometres. The educational and socioeconomic status were found to be significant predictors of knowledge of cervical cancer on multivariate logistic regression analysis Conclusion: A general lack of awareness has been noted regarding cervical cancer in the study population. None of the participants had undergone screening for cancer cervix or had been administered HPV vaccination, which points to a lack of healthcare utilisation. There is a need to sensitize the target population to the menace of cervical cancer and the usefulness of screening and HPV uptake. Bangladesh Journal of Medical Science Vol.20(4) 2021 p.790-795

COVID-19 and SARS-CoV-2 Variants: Current Challenges and Health Concern

The ongoing coronavirus disease 2019 (COVID-19) outbreak in Wuhan, China, was triggered and unfolded quickly throughout the globe by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The new virus, transmitted primarily through inhalation or contact with infected droplets, seems very contagious and pathogenic, with an incubation period varying from 2 to 14 days. The epidemic is an ongoing public health problem that challenges the present global health system. A worldwide social and economic stress has been observed. The transitional source of origin and its transport to humans is unknown, but speedy human transportation has been accepted extensively. The typical clinical symptoms of COVID-19 are almost like colds. With case fatality rates varying from 2 to 3 percent, a small number of patients may experience serious health problems or even die. To date, there is a limited number of antiviral agents or vaccines for the treatment of COVID-19. The occurrence and pathogenicity of COVID-19 infection are outlined and comparatively analyzed, given the outbreak's urgency. The recent developments in diagnostics, treatment, and marketed vaccine are discussed to deal with this viral outbreak. Now the scientist is concerned about the appearance of several variants over the globe and the efficacy of the vaccine against these variants. There is a need for consistent monitoring of the virus epidemiology and surveillance of the ongoing variant and related disease severity.

The Association of COVID-19 Pandemic Stress With Health-Related Quality of Life in the Kingdom of Saudi Arabia: A Cross-Sectional Analytical Study

Background: There is a global disaster since WHO declared Covid-19 as a pandemic. With the increase in cases & mortality rate, various health issues viz., stress, mental disorders and altered health-related quality of life have been noted as a result of pandemic and lockdowns. This study aimed to assess the association of COVID-19 pandemic stress with health-related quality of life in the Kingdom of Saudi Arabia. Methodology: It was a cross-sectional analytical study. Subjects included 878 citizens and residents of Saudi Arabia aged 18 years and above. Convenience, non-probability sampling technique was used. A web-based, self-administered, electronic questionnaire in Arabic language having three sections; Sociodemographic & clinical profile, Standard PSS-10, and Standard SF-12 was used as the study tool and distributed through various social media means. The study period was of 2 months. Data were analyzed using SPS version 25. Descriptive statistics, Pearson's correlation coefficient, independent sample t-test and the one-way analysis of variance (ANOVA) were employed for suitable statistical analysis. Results: Almost two-thirds of the subjects were between the age of 18 to < 40 and majority (74.1%) being females. Majority (83.0%) reported as having no chronic diseases, and 69.5% had no contact history with COVID-19 cases. The mean of MCS & PCS was (32.34 ± 25.30) & (41.65 ± 11.82), respectively. Majority (67.6%) had a moderate level of COVID-19 stress. A significant negative relationship between total stress scores and HRQOL domains was observed. Conclusion: Majority subjects had a moderate level of stress related to COVID-19 lockdown. Stress during COVID-19 has a significant negative association with both physical and mental HRQOL in which MCS was significantly lower than PCS. It is recommended to evaluate the effectiveness of stress management program and follow a holistic approach.

A Comparative Study of infant and young child feeding practices (IYCF) and nutritional status under two years of age

Background: Infant and young child feeding is a key area to improve child survival and promote healthy growth and development. NFHS-4 2015-16 reveals improvement in EBF from 46.4% (NFHS-3) to 54.9% in India. Improvement is less in urban area (46.8%) as compared to rural area (54.2%). NFHS 4 reveals decline in EBF from 51.3% (NFHS-3) to 41.6% in Uttar Pradesh. Aims & Objectives: To compare the finding of feeding practices and nutritional status between urban and rural children. Settings and Design: Conducted in the field practice areas of Rural and Urban Health training centre of Muzaffarnagar Medical College. A list of all the registered children up to two years of age was obtained. Period of study was one year. Methods and Material: The sample size calculated using prevalence for urban and rural at 12% permissible error of P. The total sample size (250+ 660) 910 was taken. Statistical analysis used: The data analysed using StatCalc version 8.2.2 software. Results: 43.6% of the children were being exclusively breastfed in rural areas vis-à-vis 29.8% in urban areas. 40.4% were timely fed and 24% were late in starting complementary feeding. Appropriate caloric intake was seen only in 37.9% children. Maximum appropriate intake was there in 0-6 month’s children (62.8%) and this progressively decreased as the age increased, to 40.5%, 17.1% at 6-12 month’s, 12-24 months respectively. Thus age was significantly associated with mean deficiency of calories (p<0.0001). Conclusions: Age of the child was found to be associated with mean deficiency of calories. 33.3% of children fell in the category of wasting and 48.6% of children were stunted

Aerosols exposure and respiratory morbidity among dental health care Professionals of Lucknow

Introduction: Dentists use high-energy equipment, such as drills and scalers in the presence of bodily fluids such as blood and saliva, and dental plaque. This combined effect generates aerosols of oral micro-organisms, and blood. Objective: To determine the prevalence of respiratory morbidities and practices for protection against aerosols exposure at work place among dental health care professionals in District Lucknow. Methods: This cross-sectional study involved private dental practitioners registered with Indian Dental Association chosen by Simple Random Sampling. Dentists who gave consent and who were practicing for at least 1 year were included. Aerosol exposure and respiratory morbidity was assessed using a self-administered questionnaire. SPSS software version 16.0 was used for data analysis. Results: Total number of study participants were 0. Mean age in years of study subjects were 33.5 ±11.6. Their average years of involvement in clinical practice were 10.0 ±12.75. Majority of dental practitioners used hand scalers (70%) and power scalers (80%) on patients. A higher proportion changed their masks by the day (60%).  Majority used protective eye goggles (70%). Only 30% used high efficiency particulate room filters while 20% used humidifiers and air purification systems. One fifth of respondents usually had cough. Conclusion: Respiratory morbidity is associated with workplace generated aerosol among dental health professionals. Awareness regarding occupational exposure and implementation of preventive strategies is required to provide a safe working environment.

EBOLA: IMPACT AND RESPONSE

Ebola virus disease (EVD) is a severe illness caused by  Ebola viruses affecting man and non human primates.  This Ebola hemorrhagic fever (EHF) or simply Ebola, is often deadly in nature. The virus is transmitted to man from wild animals such as fruit bats. It is thought that fruit bats of the Pteropodidae family are natural Ebola virus host and act as normal carrier in nature. The WHO affirmed the EVD outbreak as a “Public Health Emergency of International Concern” on August 8th, 2014. EVD is manifested by fever, fatigue, muscle, pain, headache, and sore throat. There is no proven treatment for Ebola. Simple interventions can significantly improve chances of survival. Supportive treatment includes rehydration with fluids and body salts.. EVD has a risk of death in those infected, between 25% and 90%. Rapid geographic dissemination, nonspecific clinical presentation, lack of vaccine, and specific diagnostic test are the possible challenges to combat this dreaded public health menace. Hand hygiene is the most effective way to prevent the spread of the Ebola virus. Ebola vaccine candidates against Ebola have been developed in the decade prior to 2014, but none have yet been approved for clinical use in humans. Most recently, the European Medicines Agency (EMA) has approved the first ever Ebola vaccine (rVSV-ZEBOV-GP vaccine). This development has been appreciated from all the corners as it is in the interest of mankind and will always be considered as an important milestone in the field of public health.  

Impact of Playing Violent Video Games Among School Going Children

Introduction: Children who play violent video games can become violent and aggressive. An aggressive emotional change in their behavior and deviation in academic performance is usually noticed. Aim: To assess the impact of violent video games playing among school going adolescents. Materials and Methods: A cross-sectional study was conducted among a random sample of 400 adolescents recruited from four selected English medium schools of a City of Northern India by convenient sampling. Each student was interviewed by using a self-structured questionnaire which covered demographics, video gaming behaviors, and effects of video game playing on adolescents. Statistical Analysis: Collected data were entered in Microsoft Excel and subjected to suitable statistical tests. Results: 83.75% of the participants play video games while 1/3rd preferred to play violent games. 72.24% of the parents did not monitor the video game content of their children. Both boys (58.56%) and girls (17.12%) got aggressive during parent’s interference while playing violent video games. Most of the male (62.07%) were willing to apply actions of violent video games in real life. About 63.21% male violent video gamers showed poor academic performance as compared to girls (33.33%). Conclusion: Adolescents and their parents should be updated about the negative impact of excessive video game playing on health and psychosocial functioning.

A prospective observational study to evaluate the efficacy of facility-based management in malnourished children at NRC, district Meerut

BACKGROUND

Scarcity of suitable food, lack of purchasing power of the family as well as traditional beliefs and taboos about what the baby should eat, often lead to a sufficient balanced diet, resulting in malnutrition. In children, malnutrition is synonymous with growth failure. Malnourished children are shorter and weigh less than they should be for their age and height.

MATERIALS AND METHODS

The present study was conducted from September 2017 to November 2017.112 malnourish children, aged 6-60 months who were admitted to NRC during the study period at district hospital Meerut were assessed. Checklist based on operational guidelines on facility based management was used. Data was analyzed in Microsoft Excel and Epi info.

RESULT

In the studied population, there were 45 males and 67 females, out of which highest representation was from the age group of 13 to 24 months.67% of studied population belonged to schedule caste. The average weight gain during the stay at the center was 9.92±5.43g/kg/day. The average duration of stay at NRC was 12.01±1.61 days. Only 30% of mothers had appropriate knowledge regarding therapeutic diet and only 50% of the mothers know about the preparation of nutritious food from locally available foods.

CONCLUSION

Targeted supplementary nutrition and therapeutic nutrition with specific micronutrients when provided to malnourish children for 14 days by Nutrition Rehabilitation Center can be helpful to improve their nutritional status. There is need to scale up community awareness and community participation for NRCs.

Impact of indian public health standards for rural health care facilities on national programme for control of deafness in India: The results of a cohort study

Introduction:

In National Programme for Prevention and Control of Deafness (NPPCD), the management of ear diseases of rural India is now guided by Revised Indian Public Health Standards (IPHS) for Rural Health Facilities for providing quality ear care. However, despite the IPHS existence, coverage and quality ear care is questionable. Moreover, this issue has not yet been studied till now in the Indian context. The objective of the study was to assess the role of Private Medical College Training Center (Rural Health Training Centre [RHTC]) in augmenting quality of ear care services in NPPCD at district level by adopting IPHS Standards.

Materials and Methods:

A combined retrospective and prospective cohort study was done at RHTC of a Medical College in West Uttar Pradesh from January 1, 2013, to December 31, 2017, by retrospective approach of selecting all ear patients (n = 3840) and prospective way of assessing the impact of IPHS for ear care. The semi-structured Pro forma was used in exploring the coverage and quality of ear care. The data were analyzed by Epi Info version 7.2.

Results:

Out of total 4817 ear, nose, and throat (ENT) patients, the majority of ear patients (n = 3840) were initially dissatisfied with coverage and quality of ear services provided by ENT specialists at RHTC. However, when IPHS exposure was given from July 1, 2015 to December 31, 2017, not only majority of patients were satisfied (n = 3110, 81%) but also ear curative treatment was significantly higher (n = 2120, 68.1% vs. n = 130, 17.8%, odds ratio = 9.8, RR = 1.5, P < 0.00001).

Conclusions:

Adherence to IPHS in NPPCD is essential for delivering better ear care by RHTC through primary health-care approach.

Assessment and comparison of nutritional status of government and private secondary school children of Muzaffarnagar

Background: Malnutrition leads to poor cognitive performance and physical growth in children and is a major component of school health services. Imbalanced nutrition in adolescence can put them at high risk of chronic diseases particularly if combined with adverse lifestyle. Aims & Objectives: This study was designed to assess and compare the nutritional status of government and private school children of Muzaffarnagar city. Material and Methods: School based, comparative Cross-sectional study. One private and one government school was selected using unistage stratified random sampling. A total of 1960 (980 each from private school and government school) school children of class 6-12 were studied for socio-epidemiological details, dietary habits, and physical activity. Information on education status, occupation, monthly income of their parents was also collected. Required anthropometric measurements were taken. Results: Of 980 children from private school, 90 (9.18%) were underweight,138 (14.08%) were overweight, and 137 (13.97%) were obese. Majority of children from government school were underweight 215 (21.94%) except for 24 (2.45%) overweight children. Conclusion: This study shows the dual nature of nutritional problem, under-nutrition among the lower socioeconomic class of govt. school at one side and worrisome epidemic of obesity among the affluent of private school

Tobacco use and its impact on pulmonary health among elderly population in rural area of Muzaffarnagar - A cross-sectional study

BACKGROUND

The tobacco use is significant in Indian rural population. Among them, elderly people in rural area are at special risk due to ageing and other factors. The impact of tobacco use on elderly health, therefore, needs to be studied in depth in rural context.

OBJECTIVE

To study the patterns of tobacco use and its consequent impact on pulmonary health of the elderly.

DESIGN AND METHODOLOGY

A community-based cross-sectional study was done (April 1st to September 30th, 2014) in the field practice area (village Bilaspur) of Rural Health Training Centre (RHTC) of Muzaffarnagar Medical College, Muzaffarnagar. A simple random sampling was used and elderly of 60 years and above were interviewed by semi-structured interview schedule. The data were analyzed by software Epi-info. version 7.1.3.3.

RESULTS AND CONCLUSION

The prevalence of tobacco usage among elderly was 56.7%, in which smoking was the dominant one (37%) and majority being in the form of Bidi (56.7%). Tobacco usage was significantly associated not only with age, sex, and caste (p<0.05 each), but occupational and socio-economic status (p<0.01 each) also; however, literacy was the most significant factor (p<0.0001) among all. The tobacco usage in smoking form was highly significantly associated with the presence of chronic obstructive pulmonary disease (p<0.0001), elucidating a significant impact on their pulmonary health. The rural elderly people need health education regarding curtailing the use of tobacco for their better health from health clinics.

Verbal autopsy of neonatal deaths in Khatauli Block of District Muzaffarnagar, Uttar Pradesh, India

BackgroundVerbal autopsy is a method of inquiry to ascertain the likely cause of death in populations where vital registration of deaths is incomplete and unreliable. Over 75% of deaths in India occur at homes; more than half of these do not have a certified cause. Further, most of the deaths in the rural areas of India occur at home and that is why a medical certification by a qualified practitioner is not possible. Keeping these facts in mind, this study was designed having objectives as to find out the causes of neonatal deaths through verbal autopsy and its feasibility to be used by health workers.Material & Methods:This cross-sectional epidemiological study was conducted in randomly selected rural areas of Khatauli Block of District Muzaffarnagar, Uttar Pradesh, India. Verbal autopsy data was collected by a team of health workers adequately trained for the same well in advance. Data related to reported neonatal deaths in the study area in the specified period of time was collected on structured & pre-tested questionnaire used as study tool by interviewing the parents, relatives or neighbours of the deceased. Data thus collected was verified twice by the coordinator and principal investigator respectively and analyzed by using Epi info statistical package.Results:A total of 24 perinatal deaths were reported, out of which 7 (29.2%) were stillbirth and 17 (70.8%) were neonatal deaths. ANC was received by 14 mothers (58.3%). Half of the deliveries were conducted by untrained Dai. About 20 deliveries (83.3%) were at home and 10 (58.8%) of the deceased were early neonates. The cause of deaths found by means of verbal autopsies were mainly: pneumonia - 4 (23.5%), diarrhoea - 2 (11.8%) neonatal jaundice - 03 (17.6%) etc.Conclusion:Pneumonia, diarrhoea & neonatal jaundice alone constitute about 53% of the total neonatal deaths. The use of the verbal autopsy tool by health workers to find out the cause of neonatal deaths is very much feasible.DOI: http://dx.doi.org/10.3126/nje.v4i5.12019 Nepal Journal of Epidemiology 2014; 4(5):423-27

Socio-demographic Correlates of Depression Among Elderly Slum Dwellers of North India

Background   Ageing is an inevitable process which begins before birth and continues throughout the life. Though depression is the commonest psychiatric disorder in the elderly, it is commonly misdiagnosed and under treated. The objective of the current study is to know the socio-demographic correlates of depressive disorders amongst elderly. Materials and Methods A cross-sectional community based study was designed and conducted in an urban slum of Muzaffarnagar city, of North India, comprising of 403 elderly aged 60 years and above for a period of 6 months. First of all, the listing of elderly in the study area was done then study was started with the randomly selected name entered in list as the first one and thereafter every second elderly was interviewed alternatively with the help of predesigned proforma. The collected data was subjected to suitable statistical analysis. Results As the age advances the depressive disorders also increase. The prevalence of depressive disorders was found to be 9.4% and it has been observed to double with advancement of one decade of years in the age. It has been noted that there is statistically significant association between decadal age advancement and rise in number of cases of depression. No significant difference in the occurrence of depressive disorders among male and female elderly population has been found. Conclusion A holistic approach to underlying causes of problems of elderly should be undertaken. There is need of strengthening the existing “package” of services for elderly in various initiatives and programmes. DOI: http://dx.doi.org/10.3126/nje.v4i1.10133 Nepal Journal of Epidemiology 2014;4 (1): 316-322

Prevalence of psychosocial problems among adolescents in district Dehradun, Uttarakhand

OBJECTIVE

To find out the prevalence of psychosocial problems among adolescents.

METHODS

A cross sectional study was conducted at Doiwala block, Dehradun during 2006-2007 among 840 adolescents, selected by multistage random sampling. Data was collected on a structured and pre-tested questionnaire by interviewing the adolescents and conducting their thorough clinical examination. Epi Info statistical software package version 3.4.3 was used for analysis.

RESULTS

The overall prevalence of psychosocial problems among the adolescents was found to be 31.2%. The psychosocial problems were more in males (34.77%) as compared to females (27.6 %).

CONCLUSIONS

There is need of strengthening the existing "package" of services for adolescents in various initiatives and programmes.