RESUMEN
Chemotherapeutic drug delivery systems are commonly limited by their short half-lives, poor bioavailability, and unsuccessful targetability. Herein, pH-responsive hybrid NPs consist of benzimidazole-coated mesoporous silica nanoparticles (BZ-MSN) loaded with naturally occurring flavonoid quercetin (QUE-BZ-MSN). The NPs were further capped with beta-cyclodextrin (BCD) to obtain our desired BCD-QUE-BZMSN, with a zeta potential around 7.05 ± 2.37 mV and diameter about 115.2 ± 19.02 nm. The abundance of BZ onto the nanoparticles facilitates targeted quercetin chemotherapy against model lung and liver cancer cell lines. FTIR, EDX, and NMR analyses revealed evidence of possible surface functionalizations. Powder XRD analysis showed that our designed BCD-QUE-BZMSN formulation is amorphous in nature. The UV and SEM showed that our designed BCD-QUE-BZMSN has high drug entrapment efficiency and a nearly spherical morphology. In vitro, drug release assessments show controlled pH-dependent release profiles that could enhance the targeted chemotherapeutic response against mildly acidic regions in cancer cell lines. The obtained BCD-QUE-BZMSN nanovalve achieved significantly higher cytotoxic efficacy as compared to QUE alone, which was evaluated by in vitro cellular uptake against liver and lung cancer cell lines, and the cellular morphological ablation was further confirmed via inverted microscopy. The outcomes of the study imply that our designed BCD-QUE-BZMSN nanovalve is a potential carrier for cancer chemotherapeutics.
RESUMEN
Delivering specialised care for major burns requires a multidisciplinary health workforce. While health systems 'hardware' issues, such as shortages of the healthcare workforce and training gaps in burn care are widely acknowledged, there is limited evidence around the systems 'software' aspects, such as interest, power dynamics, and relationships that impact the healthcare workforce performance. This study explored challenges faced by the health workforce in burn care to identify issues affecting their performance. Qualitative in-depth interviews were conducted with a purposively selected sample (n = 31, 18 women and 13 men) of various cadres of the burn care health workforce in Uttar Pradesh, India. Inductive coding and thematic analysis identified three major themes. First, the dynamics within the multidisciplinary team where complex relations, power and normative hierarchy hampered performance. Second, the dynamics between health workers and patients due to the clinical and emotional challenges of dealing with burn injuries and multitasking. Third, dynamics between specialised burn units and broader health systems are narrated in challenges due to inadequate first response and delayed referral from primary care facilities. These findings indicate that burn care health workers in India face multiple challenges that need systemic intervention with a multipronged human resource for health framework.
Asunto(s)
Quemaduras , Entrevistas como Asunto , Investigación Cualitativa , Humanos , India , Femenino , Masculino , Adulto , Fuerza Laboral en Salud , Persona de Mediana Edad , Personal de Salud , Grupo de Atención al PacienteRESUMEN
BACKGROUND: India has one of the highest burden of burns. The health systems response to burn care is sometimes patchy and highly influenced by social determinants. Delay in access to acute care and rehabilitation adversely affects recovery outcomes. Evidence on underlying factors for delays in care are limited. In this study, we aim to explore patients' journeys to analyse their experiences in accessing burn care in Uttar Pradesh, India. METHODS: We conducted qualitative inquiry using the patient journey mapping approach and in-depth interviews (IDI). We purposively selected a referral burn centre in Uttar Pradesh, India and included a diverse group of patients. A chronological plot of the patient's journey was drawn and confirmed with respondents at the end of the interview. A detailed patient journey map was drawn for each patient based on interview transcripts and notes. Further analysis was done in NVivo 12 using a combination of inductive and deductive coding. Similar codes were categorised into sub-themes, which were distributed to one of the major themes of the 'three delays' framework. RESULTS: Six major burns patients (4 female and 2 males) aged between 2 and 43 years were included in the study. Two patients had flame burns, and one had chemical, electric, hot liquid, and blast injury, respectively. Delay in seeking care (delay 1) was less common for acute care but was a concern for rehabilitation. Accessibility and availability of services, costs of care and lack of financial support influenced delay (1) for rehabilitation. Delay in reaching an appropriate facility (delay 2) was common due to multiple referrals before reaching an appropriate burn facility. Lack of clarity on referral systems and proper triaging influenced this delay. Delay in getting adequate care (delay 3) was mainly due to inadequate infrastructure at various levels of health facilities, shortage of skilled health providers, and high costs of care. COVID-19-related protocols and restrictions influenced all three delays. CONCLUSIONS: Burn care pathways are adversely affected by barriers to timely access. We propose using the modified 3-delays framework to analyse delays in burns care. There is a need to strengthen referral linkage systems, ensure financial risk protection, and integrate burn care at all levels of health care delivery systems.
Asunto(s)
Quemaduras , Masculino , Humanos , Femenino , Preescolar , Niño , Adolescente , Adulto Joven , Adulto , Quemaduras/terapia , Accesibilidad a los Servicios de Salud , Investigación Cualitativa , Derivación y Consulta , IndiaRESUMEN
BACKGROUND: Textile materials are susceptible to microbial attack as they provide suitable conditions for their growth. The microbes grow with normal body secretions on garments. These microbes are responsible for the weakening, brittleness, and discoloration of the substrate. Furthermore, they cause many health issues to the wearer, including dermal infection, bad odour etc. They threaten the human health as well as create tenderness in fabric. OBJECTIVES: Usually, antimicrobial textiles are prepared by applying antimicrobial finishes after dyeing, which is an expensive approach. Concerning these adversities, in the present study, a series of antimicrobial acid-azo dyes have been synthesized by incorporating antimicrobial sulphonamide moiety into the dye molecules during its synthesis. METHODS: A commercially available sulphonamide-based compound, sulfadimidine Na-salt was used as a diazonium component and coupled with different aromatic amines to get desired dye molecules. Since dyeing and finishing are two separate energy-intensive processes, in the current research work, an approach to combine both processes in one step has been adopted that would be economical, timesaving, and environment friendly. Structures of the resultant dye molecules have been confirmed using different spectral techniques such as Mass spectrometry, 1H-NMR spectroscopy, FT-IR, and UV-Visible spectroscopy. RESULTS: Thermal stability of the synthesized dyes was also determined. These dyes have been applied to wool and nylon-6 fabrics. Their various fastness properties were examined using ISO standard methods. CONCLUSION: All the compounds exhibited good to excellent fastness properties. The synthesized dyes and the dyed fabrics were screened biologically against Staphylococcus aureus ATCC 6538 and Escherichia coli ATCC 10536, resulting in significant antibacterial activities.
Asunto(s)
Compuestos Azo , Textiles , Animales , Humanos , Compuestos Azo/farmacología , Compuestos Azo/química , Espectroscopía Infrarroja por Transformada de Fourier , Antibacterianos , Colorantes/químicaRESUMEN
Background: Bicycles are environment-friendly and is an effective physical activity intervention to decrease risk of non-communicable diseases. Family physicians and primary care workers play a key role in promoting its usage, including addressing safety concerns through the use of bicycle helmet use. The uptake of bicycle helmets is low in many settings. We aimed to understand facilitators and barriers to bicycle helmet use. Method: We searched five major electronic databases, screened references and manually searched conference abstracts for qualitative studies that focused on facilitators and barriers to bicycle helmet use. We critically appraised the studies using the Critical Appraisal Skills Programme (CASP) checklist and used PROGRESS-Plus tool for an equity-focused analysis. We conducted a thematic synthesis for analysis and used GRADE-CERQual to report confidence in findings. Results: We included 15 studies from high-income countries. We identified 4 themes: 1. Perceptions on helmet design, it's quality and cost together with experiences influencing helmet use (10 studies, low confidence); 2. Perceived risk and benefits of helmet use through a gender lens (10 studies, moderate confidence); 3. Parental strategies influencing children's behavior regarding helmet use (6 studies, moderate confidence); 4. Adoption and enforcement of laws that shape perception and usage of bicycle helmets (8 studies, very low confidence). Conclusion: Our study identified facilitators and barriers and can be considered for developing programs and strategies to influence bicycle helmet use, but the confidence in findings is not high. Family physicians and primary care workers should consider these factors when promoting bicycle helmet for injury prevention. There is a need for more qualitative studies in different contexts to develop more robust evidence.
RESUMEN
Purpose: Antimicrobial resistance (AMR) is leading to greater therapeutic cost, length of hospital stays, adverse events, morbidity and mortality. Hospital-based antimicrobial stewardship programs (ASPs) engaging physicians, pharmacists, microbiologists and nurses are considered as effective way to ensure appropriate use of antimicrobial agents. The aims of our study were to assess nurses' perception, involvement, confidence and barriers towards hospital-based ASPs, and use the findings to provide future guidance. Methods: A web-based, cross-sectional study was conducted among the nurses serving at eleven hospitals of Punjab province of Pakistan during a period of two months (December 2021-January 2022). Data were collected using a validated self-administered questionnaire. All data were analyzed using SPSS version 22. Results: A total of 583 nurses participated in the study (response rate = 77.7%). All the participants were female staff nurses and 86% had a minimum of 3 years of working experience. The overall median score on the perception towards ASPs among the nurses was 18 (IQR: 16, 19) on a 0 to 20 scale whereas median score on the involvement in ASPs was 18 (IQR: 15, 37) on a 0 to 64 scale. Median perception and involvement score were statistically significantly differed by age (p < 0.001) and years of experience (p < 0.001). The overall median score on the confidence to perform ASP activities was 22 (IQR: 14, 24) on a 0 to 28 scale. Lack of knowledge, insufficient support from administration, and heavy workload were found to be the common barriers to perform ASP. Conclusion: Our study concluded that Pakistani nurses have positive perception but limited involvement in ASPs. Moreover, they are confident to perform ASP besides many barriers.
RESUMEN
PURPOSE: In Pakistan, a wide range of repurposed drugs are recommended to manage hospitalized patients with COVID-19. Therefore, the current study was conducted to evaluate the pattern of utilization of repurposed drugs and other potential therapeutic options among hospitalized patients with COVID-19 in Pakistan. METHODS: This retrospective, multicenter, descriptive study enrolled consecutive hospitalized patients with COVID-19 who were admitted between March 1, 2021, and April 30, 2021, from three District Headquarter Hospitals in the Punjab province of Pakistan. We described patient and clinical characteristics and medications, stratified by COVID-19 severity during hospitalization: mild, moderate, and severe. In addition, an analytical study of drug utilization was conducted. FINDINGS: A total of 444 hospitalized patients with COVID-19 were included. Remdesvir, corticosteroids, antibiotics, and antithrombotics were administered to 45.0%, 93.9%, 84.9%, and 60.1% of patients, respectively. Specifically, dexamethasone was the most commonly used corticosteroid among the included patients (n = 405; 91.2%), irrespective of their clinical severity. Only 60.1% of patients hospitalized with COVID-19 in our cohort received antithrombotic therapy, and the prevalence of use was especially low (27.8%) in patients with mild illness. Of 444 patientsscreened, 399 (89.9%) patients had been discharged, and 45 patients (10.1%) died. IMPLICATIONS: We provided an important glimpse into the utilization patterns of several medications of interest for the treatment of COVID-19 in Pakistan, which had not been entirely evidence-based, especially concerning systemic corticosteroids and antibiotics.
RESUMEN
OBJECTIVES: Community-based health programmes implemented in low-income and middle-income countries impact community gender norms and roles and relationships, which in turn affect individuals' health outcomes. Programmes should measure their effects on gender norms, roles and relationships in the communities in which they operate to respond to unexpected health consequences. We conducted a gender analysis on a drowning reduction programme in rural Bangladesh to identify its impacts on gendered roles and behaviours in the community. DESIGN: A mixed-method approach was used. Quantitative programme monitoring data were analysed to assess gender differences in participation and engagement. A qualitative approach using interviews, focus group discussions and observations with purposively selected programme implementing staff and participants aimed at finding explanations for quantitative findings and additional impacts of the programme on gender in the community. The analysis was conducted using Family Health International 360's Gender Integration Framework, which identifies both internal (norms) and external (behaviours) effects. RESULTS: Fewer girls (n=5030) participated in swimming classes than boys (n=6425) due to cultural restrictions and involvement in domestic work. Women were not hired in leadership roles in the implementing organisation due to lower transportation access and their perceived ability to conduct labour-intensive activities. However, communities become more accepting of local women's mobility and employment due to their engagement as swim instructors. Women swim instructors were more satisfied with the pay and part-time nature of the work as men were able to earn more elsewhere. Menstruation management was ignored as all supervisory staff were men. CONCLUSIONS: Systematised strategies are required to ensure equal participation of girls and enable equitable prevention outcomes. Within the implementing organisation, programmatic changes will support gender transformation, such as ensuring women's mobility and engagement in leadership roles. Strategies to combat perceptions that lower paying part time work is more suitable for women than men may be considered.
Asunto(s)
Ahogamiento , Bangladesh/epidemiología , Femenino , Grupos Focales , Equidad de Género , Humanos , Masculino , Población RuralRESUMEN
In treating wounds, long lasting infection is considered the major impediment. Drugs are rendered ineffective by pathogenic microorganisms via antibiotic resistance and calls for designing and development of new drugs. Herein, we report synthesis of eight different N-alkylated pyridine-based organic salts QAS 1-8 and their antibacterial, antibiofilm and wound healing activities. 3-(2-R-hydrazinecarbonyl)-1-propylpyridinium Bromide was the parent compound while R group was varying in each salt composed of different aromatic aldehyde moieties. In the antibacterial activity against S. aureus and E. coli, amoxicillin shows IC50 near to 25 µg/mL inhibiting 58 ± 0.4% S. aureus while ceftriaxone inhibited 55 ± 0.5% E. coli at a concentration of 10 µg/mL. The highest IC50 (56 ± 0.5% against S. aureus; 55 ± 0.5% against E. coli) was shown by compound QAS 7 at the concentration of 100 µg/mL; followed by the QAS 6 (55 ± 0.5% against E. coli) and QAS 2 (55 ± 0.5% against E. coli). In the antibiofilm activity, QAS 6, QAS 1 and QAS 8 inhibited 58 ± 0.4% S. aureus at a concentration of 75 µg/mL, while QAS 2 inhibited E. coli at the same concentration and amount. QAS 7, 3 and 1 inhibited almost 90% while QAS 6 inhibited 95 ± 1.1%of E. coli at a concentration of 250 µg/mL. Highest MBIC was provided by QAS 7 (52 ± 0.4%) against S. aureus at a concentration of 50 µg/mL that is very near to the standard amoxicillin. Antibacterial and antibiofilm activity results were also supported by the atomic force microscopy (AFM). In the wound healing activity, QAS 8 healed 90.8 ± 4.3% of the wound in 21 days with an average period of epithelialization (POE) of 19 ± 1.4 days; that is far better than povidone iodine ointment (81.5 ± 3.3% of the wound in the 21 days with 22.4 ± 2.9 days of POE). It is concluded from this study that the synthesized compounds QAS 2, 7 and 8 can be used for further mechanistic studies to be employed as antibacterial, antibiofilm and wound healing agents.