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1.
Microb Cell Fact ; 23(1): 109, 2024 Apr 12.
Artículo en Inglés | MEDLINE | ID: mdl-38609920

RESUMEN

BACKGROUND: Cellulase is considered a group member of the hydrolytic enzymes, responsible for catalyzing the hydrolysis of cellulose and has various industrial applications. Agricultural wastes are used as an inexpensive source for several utilizable products throughout the world. So, searching for cellulase enzymes from fungal strains capable of utilizing agricultural wastes to increase productivity, reduce costs and overcome waste accumulation in the environment is very important to evaluate its potency as a bio-additive to detergent agents. RESULTS: In the current study, the previously identified fungal strain Aspergillus terreus MN901491 was screened and selected for cellulase production. Medium parameters were optimized using one-factor-at-a-time (OFAT) and multi-factorial (Plackett-Burman and Box-Behnken) design methods. OFAT showed the ability of the fungal strain to utilize agricultural wastes (corn cob and rice straw) as a substrate. Also, yeast extract was the best nitrogen source for enhancing cellulase productivity. The most significant variables were determined by Plackett-Burman Design (PBD) and their concentrations were optimized by Response Surface Methodology (RSM) using Box-Behnken Design (BBD). Among eleven independent variables screened by PBD, malt extract, (NH4)2SO4, and KCl were the most significant ones followed by rice straw which affected cellulase production positively. The ANOVA results particularly the R2-value of PBD (0.9879) and BBD (0.9883) confirmed the model efficiency and provided a good interpretation of the experiments. PBD and BBD improved cellulase productivity by 6.1-fold greater than that obtained from OFAT. Medium optimization using OFAT and statistical models increased cellulase production from A. terreus MN901491 by 9.3-fold compared to the non-optimized medium. Moreover, the efficiency of cellulase activity on cotton fabrics as a bio-additive detergent was evaluated and estimated using whiteness and scanning electron microscope (SEM) that affirmed its potential effect and remarkable detergent ability to improve whiteness by 200% in comparison with non-washed fabric and by 190% in comparison with fabric washed by water. CONCLUSION: The presented work was stabilized as a multi-efficiency in which wastes were used to produce cellulase enzyme from the fungal strain, Aspergillus terreus MN901491 as a bio-additive to detergent applications that involved ecofriendly and green processes.


Asunto(s)
Celulasa , Oryza , Detergentes , Aspergillus , Proyectos de Investigación
2.
Saudi Pharm J ; 32(4): 101996, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38414782

RESUMEN

Objective: This study aimed to determine the intention of female Saudi pharmacy students to work in community pharmacies and the factors associated with this intention. Methods: This cross-sectional study was conducted between April 2022 and June 2022 and included female students from pharmacy colleges in Saudi Arabia. The survey was created based on the Theory of Planned Behavior. It included items that measure student intentions, attitudes, subjective norms, and perceived behavioral control regarding working in community pharmacies in Saudi Arabia. The study also included items that assessed sociodemographic characteristics, pharmacy program degrees, training, and job preferences of students. Results: A total of 407 participants completed the survey. The average age was 21.8 (±1.6) years, and most participants were Saudi nationals (97.79 %). The intention of participants to work in community pharmacies after graduation was low (mean = 3.2 ± 1.8; range: 1-7). Slightly positive attitudes toward working in a community pharmacy after graduation were revealed as participants showed an overall attitude mean of 4.5 ± 1.6 (range: 1-7). Furthermore, the participants perceived a low social pressure toward working in a community pharmacy after graduation (mean of 3.3 ± 1.9; range: 1-7). The intention of female pharmacy students to work in community pharmacies was significantly predicted by attitudes (p-value < 0.0001), perceived behavioral control (p-value = 0.0017), nationality (p-value = 0.0151), residence in the Saudi Arabian region (p-value = 0.0013), monthly income (p-value = 0.0231), pharmacy degree program (p-value = 0.0035), training received in community pharmacies (p-value = 0.0145), had a relative working in a community pharmacy (p-value = 0.0257), and preference to work in community pharmacies after graduation (p-value = 0.0001). Conclusion: Female pharmacy students in Saudi Arabia had a low intention to work in community pharmacies, a positive attitude toward working in community pharmacies, and perceived no social pressure to work in them. A positive attitude and behavioral perception of control toward working in community pharmacies were demonstrated among pharmacy students who study at a university outside Riyadh, undertaking a bachelor's degree in pharmacy, have a monthly income higher than 5000 Saudi riyals (USD 1,333.3), previously received training in community pharmacies, having a relative working in a community pharmacy, prefer to work in community pharmacies after graduation.

3.
Saudi Pharm J ; 32(1): 101920, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38178848

RESUMEN

Several studies have found that telemedicine has the potential to enhance the outcomes of patients with diabetes. This study aimed to determine the impact of telemedicine on the clinical outcomes of patients with type 2 diabetes mellitus (T2DM) in Saudi Arabia. We conducted a cross-sectional study among T2DM patients in selected primary healthcare centers in Riyadh, Saudi Arabia, from March 1, 2023, to August 20, 2023. We looked at how telemedicine affected HbA1c control, adherence, the number of diabetic complications, and polypharmacy using adjusted multivariable logistic regression models. Among the 583 patients, 140 (24.05 %) received care via telemedicine, while 442 (75.95 %) received in-person care. Patients who utilized telemedicine had significantly better glycemic control than those who received in-person care only (AOR = 5.123, 95 % CI = 3.107-8.447). Telemedicine also showed positive effects on treatment adherence (AOR = 2.552, 95 % CI = 1.6284-4.2414). Telemedicine can effectively reduce diabetic complications (AOR = 0.277, 95 % CI = 0.134-0.571). Regarding polypharmacy, patients with telemedicine use were less likely to report polypharmacy (AOR = 0.559, 95 % CI = 0.361-0.866). Telemedicine is considered one of the factors that improve HbA1c management and might increase therapeutic adherence and reduce diabetic complications and polypharmacy.

4.
Endocr Pract ; 29(6): 448-455, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-36898528

RESUMEN

OBJECTIVE: Using supervised machine learning algorithms (SMLAs), we built models to predict the probability of type 1 diabetes mellitus patients on insulin pump therapy for meeting insulin pump self-management behavioral (IPSMB) criteria and achieving good glycemic response within 6 months. METHODS: This was a single-center retrospective chart review of 100 adult type 1 diabetes mellitus patients on insulin pump therapy (≥6 months). Three SMLAs were deployed: multivariable logistic regression (LR), random forest (RF), and K-nearest neighbor (k-NN); validated using repeated three-fold cross-validation. Performance metrics included area under the curve-Receiver of characteristics for discrimination and Brier scores for calibration. RESULTS: Variables predictive of adherence with IPSMB criteria were baseline hemoglobin A1c, continuous glucose monitoring, and sex. The models had comparable discriminatory power (LR = 0.74; RF = 0.74; k-NN = 0.72), with the RF model showing better calibration (Brier = 0.151). Predictors of the good glycemic response included baseline hemoglobin A1c, entering carbohydrates, and following the recommended bolus dose, with models comparable in discriminatory power (LR = 0.81, RF = 0.80, k-NN = 0.78) but the RF model being better calibrated (Brier = 0.099). CONCLUSION: These proof-of-concept analyses demonstrate the feasibility of using SMLAs to develop clinically relevant predictive models of adherence with IPSMB criteria and glycemic control within 6 months. Subject to further study, nonlinear prediction models may perform better.


Asunto(s)
Diabetes Mellitus Tipo 1 , Insulinas , Adulto , Humanos , Diabetes Mellitus Tipo 1/tratamiento farmacológico , Hemoglobina Glucada , Estudios Retrospectivos , Control Glucémico , Autocuidado , Automonitorización de la Glucosa Sanguínea , Glucemia , Aprendizaje Automático , Aprendizaje Automático Supervisado , Algoritmos , Insulinas/uso terapéutico
5.
Saudi Pharm J ; 31(12): 101800, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-38028220

RESUMEN

Background: Surgical site infections are common and expensive infections that can cause fatalities or poor patient outcomes. To prevent these infections, antibiotic prophylaxis is used. However, excessive antibiotic use is related to higher costs and the emergence of antimicrobial resistance. Objectives: The present meta-analysis aimed to compare the effectiveness of a single dosage versus several doses of antibiotics in preventing the development of surgical site infections. Methods: PubMed was used to find clinical trials evaluating the effectiveness of a single dosage versus several doses of antibiotics in avoiding the development of surgical site infections. The study included trials that were published between 1984 and 2022. Seventy-four clinical trials were included in the analysis. Odds ratios were used to compare groups with 95% confidence intervals. The data were displayed using OR to generate a forest plot. Review Manager (RevMan version 5.4) was used to do the meta-analysis. Results: Regarding clean operations, there were 389 surgical site infections out of 5,634 patients in a single dose group (6.90%) and 349 surgical site infections out of 5,621 patients in multiple doses group (6.21%) (OR = 1.11, lower CI = 0.95, upper CI = 1.30). Regarding clean-contaminated operations, there were 137 surgical site infections out of 2,715 patients in a single dose group (5.05%) and 137 surgical site infections out of 2,355 patients in multiple doses group (5.82%) (OR = 0.87, lower CI = 0.68, upper CI = 1.11). Regarding contaminated operations, there were 302 surgical site infections out of 3,262 patients in a single dose group (9.26%) and 276 surgical site infections out of 3,212 patients in multiple doses group (8.59%) (OR = 1.11, lower CI = 0.84, upper CI = 1.47). In general, there were 828 surgical site infections out of 11,611 patients in a single dose group (7.13%) and 762 surgical site infections out of 11,188 patients in multiple doses group (6.81%) (OR = 1.05, lower CI = 0.93, upper CI = 1.20). The difference between groups was not significant. Conclusion: The present study showed that using a single-dose antimicrobial prophylaxis was equally effective as using multiple doses of antibiotics in decreasing surgical site infections.

6.
Saudi Pharm J ; 31(4): 569-577, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-37063442

RESUMEN

Introduction: Medication errors (MEs) are a huge burden on any healthcare system and have been associated with significant morbidity and mortality. The medical literature reported heavily on MEs but lacked focus on analyzing high-risk medications such as antimicrobials. Research design and methods: This was a retrospective analysis of the MEs database reported by the eastern region's medical centers in Saudi Arabia from January 1, 2019 to December 31, 2019. We used descriptive analysis to identify most common antimicrobials with errors, the stage of antimicrobial errors, type of the errors, contributing factors to the errors, and categories of errors based on the National Coordinating Council for Medication Error Reporting and Prevention (NCC-MERP) classification of errors. Results: A total of 1422 (22.1%) antimicrobial errors were identified out of 6412 MEs. Amoxicillin/Clavulanate (18%) was the most common antimicrobial reported in the database. Most errors occurred in the prescribing phase (87.6%) and included mainly incorrect doses (32.1%) and duplicate therapy (20.5%). In addition, most errors were identified as category B (72.5%). Finally, inexperienced personnel (57.9%) was the most cited contributing factor. Conclusion: This study revealed that antimicrobial errors occur primarily during prescription and that policy gaps and inexperienced staff were contributory factors. To improve, the focus should shift to physician education, clear dosing guidelines, efficient workload management, and implementing antimicrobial stewardship programs to promote appropriate antimicrobial use.

7.
Saudi Pharm J ; 31(9): 101713, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37559867

RESUMEN

Telepharmacy is a practical part of telemedicine that refers to providing pharmaceutical services within the scope of the pharmacist's obligations while maintaining a temporal and spatial distance between patients, users of health services, and healthcare professionals. The present study was a cross-sectional study conducted among community pharmacists in Saudi Arabia between March and May 2022 to assess their knowledge, perceptions, and readiness for telepharmacy. The survey was filled out by 404 respondents. The majority of respondents were male (59.90%) and the age of more than half of them was between 30 and 39 years old (54.46%). Most participants worked in urban areas (83.66%), and 42.57% had less than five years of experience in a pharmacy. Most participants agreed that telepharmacy is available in Saudi Arabia (82.67%). Approximately 70% of pharmacists felt that telepharmacy promotes patient medication adherence, and 77.72% agreed that telepharmacy increases patient access to pharmaceuticals in rural areas. More than 72% of pharmacists said they would work on telepharmacy initiatives in rural areas for free, and 74.26% said they would work outside of usual working hours if necessary. In the future, this research could aid in adopting full-fledged telepharmacy pharmaceutical care services in Saudi Arabia. It could also help academic initiatives by allowing telepharmacy practice models to be included as a topic course in the curriculum to prepare future pharmacists to deliver telepharmacy services.

8.
Saudi Pharm J ; 30(8): 1137-1142, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-35783675

RESUMEN

The global coronavirus disease (COVID-19) epidemic can be partially managed by vaccines; however, the public must be informed about the safety of COVID-19 vaccines to avoid hesitancy. Therefore, it is important to know the safety profile of the COVID-19 vaccine by comparison to that of a well-known vaccine, such as the influenza vaccine. Hence, this retrospective descriptive study was conducted to evaluate and compare the number of adverse effects (AEs) reported to the Vaccine Adverse Event Reporting System (VAERS) for both COVID-19 and influenza vaccines, identify the most common AEs of each vaccine, and compare the frequency and outcomes of using COVID-19 and influenza vaccines in the U.S. population. Surveillance reports from 1st December 2020 to 8th October 2021 of both vaccines were retrieved from the U.S. VAERS. A total of 544,025 and 15,871 reports of post-COVID-19 and - influenza vaccine AEs were reported to the VAERS, respectively. Females reported > 58% and nearly 70% of influenza - and COVID-19 vaccine-associated AEs, respectively. The estimated incidence rates of AEs associated with COVID-19 and influenza vaccines in the U.S. were 1.36 and 0.12 per 1,000 persons, respectively. The incidence of AEs was higher among COVID-19 vaccine recipients than that among influenza vaccine recipients. COVID-19 vaccine recipients have a two-fold higher risk of mortality and life-threatening events than influenza vaccine recipients. However, most of the reported AEs were similar between the two vaccines in terms of symptoms.

9.
Saudi Pharm J ; 29(10): 1112-1119, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34703364

RESUMEN

BACKGROUND: Healthcare-associated infections (HAI) are considered one of the most common adverse events in health care service provision. In order to prevent the occurrence of HAIs, it is important to implement several prevention strategies. OBJECTIVES: This study aims to determine the incidence of healthcare-associated infections in a military hospital in Alkharj and the adherence to the HAIs' prevention strategies. METHODS: This study included exporting data for all infected cases confirmed by the infection disease specialists in 2019. The data were collected from the reports that were written by infection control unit and infectious disease department. RESULTS: The rate of healthcare associated infections (HAIs) in 2019 was 0.43% of total patient admissions. The rate of central line associated bloodstream infections in 2019 was 1.15 per 1000 central line days. The rate of catheter associated urinary tract infections in 2019 was 1.00 per 1000 catheter days. The rate of ventilator associated pneumonia in 2019 was 2.11 per 1000 ventilator days and the rate of surgical site infections in 2019 was 0.41 %. CONCLUSION: The rate of overall healthcare-associated infections (HAI) was low. The compliance rate of health care workers to preventive measures that control HAIs was generally high but there was a need for more awareness particularly regarding personal protective equipment and hand hygiene. So it is important to attend more awareness activities and workshops particularly regarding personal protective equipment and hand hygiene. Furthermore, infection control unit and infectious disease department in the hospital should support the robust HAI prevention programs.

10.
Int J Biol Macromol ; 258(Pt 1): 128681, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38081488

RESUMEN

Using E-beam irradiation as an eco-friendly technique for initiation and crosslinking, a series of Hydroxyethyl Cellulose-poly vinyl alcohol copolymer hydrogels were synthesized as templates for cuprous oxide (Cu2O), reduced graphene oxide (rGO) and bismuth vanadate (BiVO4) nanoparticles to be used as nanocomposites photocatalysts for methylene blue (MB) dye decolorization using visible light. Preparation conditions were optimized to ensure the construction of a good network architecture and therefore the highest gelation degree. For the preparation of (Cu2O@rGO)/BiVO4 nanocomposites, a series of rGO was decorated by Cu2O using the precipitation method, followed by mixing with BiVO4 which was synthesized hydrothermally. (EDX), (XRD), (TEM), and (SEM) were used for nanoparticle characterization. The thermal characteristics of the fabricated nanocomposites were evaluated using thermal gravimetric analysis. The presence of rGO enhanced the decolorization efficiency of MB about 20 % higher than that of (HEC-PVA)/Cu2O which achieves only (59 %) decolorization efficiency. After the addition of BiVO4 NPs, the decolorization efficiency increased to reach 90 % after 150 min at pH 11 using a 10 ppm MB solution. The developed (HEC-PVA)/(Cu2O@rGO)/BiVO4 photocatalyst exhibits efficient reusability for 5 cycles. Treated dyed water shows a germination index (GI) of 82 % suggesting its suitability for irrigation of playgrounds and gardens.


Asunto(s)
Grafito , Nanocompuestos , Aguas Residuales , Luz , Nanocompuestos/química , Celulosa
11.
Medicine (Baltimore) ; 103(32): e38995, 2024 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-39121290

RESUMEN

Researchers in Saudi Arabia conducted this study to determine the level of familiarity that pharmacists and physicians possess with the pregnancy and lactation labeling rules established by the Food and Drug Administration. The present study included a cross-sectional survey conducted among pharmacists and physicians working in Saudi Arabia. The sample size was determined using the Rao sample size calculator. We utilized the Statistical Package for the Social Sciences (SPSS) version 25 for our analysis. A total of 122 respondents completed the study. Among them, 72.9% were aged between 25 and 44 years, and approximately 63.9% were male. About 64% of the respondents indicated familiarity with the A, B, C, D, and X letter system of pregnancy category labeling. Over 37% stated that the new pregnancy and lactation labeling rule would continue to use the lettering system. Additionally, 83% believed that the A, B, C, D, and X risk category labeling system is a useful resource, and 82% believed that working with this risk category labeling improves patient care. The study revealed that pharmacists and physicians exhibited good knowledge of the old rule but a low level of knowledge regarding the new rule. Despite significant flaws in the old system, most preferred it. Enhancing knowledge in this area is crucial for improving risk communication and the quality of care for women of reproductive age.


Asunto(s)
Lactancia , Farmacéuticos , Médicos , Humanos , Femenino , Arabia Saudita , Adulto , Farmacéuticos/estadística & datos numéricos , Embarazo , Estudios Transversales , Masculino , Conocimientos, Actitudes y Práctica en Salud , Encuestas y Cuestionarios , Etiquetado de Medicamentos/normas
12.
Int J Biol Macromol ; 262(Pt 2): 129946, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38340936

RESUMEN

Organic dye pollution from textiles and other industries presents a substantial risk to people and aquatic life. The use of photocatalysis to decolorize water using the strength of UV light is one of the most important remediation techniques. In the present study, a novel nanocomposites hydrogel including carboxymethyl cellulose (CMC), acrylic acid (AAc), Zinc oxide (ZnO), and silver (Ag) nanoparticles was produced using an eco-friendly γ-irradiation technique for photocatalytic decolorization applications. ZnO and Ag nanoparticles were distributed in the CMC/AAc hydrogel matrix without significant aggregation. SEM, XRD, EDX, TEM, and FTIR analyses were used to assess the physicochemical characteristics of the nanocomposite samples. Carboxymethyl cellulose/acrylic acid/Zinc oxide doped silver (CMC/PAAc/ZnO@Ag) nanocomposite hydrogels were developed and utilized in the photocatalytic decolorization of the lerui acid brilliant blue dye (LABB) when exposed to ultraviolet (UV) radiation. UV- Vis spectrophotometry was utilized to analyze the optical properties of the produced nanostructure. Regarding the decolorization of the LABB, the impacts of operational variables were investigated. The optimum conditions for decolorization (93 %) were an initial concentration of 50 mg/L, pH = 4, catalyst dosage of 50 g/L, and exposure time of 90 min. The results illustrated that the LABB acidic dye from wastewater was remarkably decolored.


Asunto(s)
Acrilatos , Bencenosulfonatos , Nanopartículas del Metal , Nanocompuestos , Óxido de Zinc , Humanos , Óxido de Zinc/química , Hidrogeles/química , Plata/química , Carboximetilcelulosa de Sodio/química , Nanopartículas del Metal/química , Colorantes/química , Nanocompuestos/química
13.
Cureus ; 16(1): e52532, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38371066

RESUMEN

Objectives In the setting of the recent global pandemic, children infected with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus causing the coronavirus disease 2019 (COVID-19) presented to our hospital with a variety of symptoms ranging from mild to severe disease including multiorgan dysfunction. Our objective was to study the clinical profile, risk factors, complications, and outcomes in pediatric patients admitted to our center with SARS-CoV-2 infection. Methods This retrospective observational study was conducted at a large quaternary center in Riyadh between May 2020 and September 2021. The study population was comprised of children between 0 and ≤14 years with SARS-CoV-2 suspicion or positivity. Results One hundred and fifty-six children were included in the study, the majority of whom were 1-10 years old. One hundred and twenty of them (76.93%) were SARS-CoV-2 positive. Fifty-nine patients (37.18%) were labelled as multisystem inflammatory syndrome in children (MIS-C) based on clinical and lab criteria, of whom 35 (22.44%) tested SARS-CoV-2 positive. Hematological disease was found to be the most common comorbidity, followed by neurological and chronic lung diseases. The most common symptoms encountered were fever, cough, vomiting, fatigue, and diarrhea. Eighty patients (51%) required pediatric intensive care unit (PICU) admission (length of stay: 5-12 days), among whom 32 (40%) required ventilation, 26 (32.5%) needed hemodynamic support, and three patients (3.75%) underwent continuous renal replacement therapy (CRRT). The overall mortality rate was 4.5% (seven patients) among the studied population. The most frequent lab abnormalities were found to be elevated serum ferritin, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and lactate dehydrogenase (LDH) levels. Ninety-one percent received antibiotics, and prophylactic anticoagulant was used in 32%. In the MIS-C subset, 80.5% received steroids, 71.43% intravenous immunoglobulin (IVIG), and 5.17% (three patients) tocilizumab. Conclusion The SARS-CoV-2 infection presented with a range of severity among our cohort of children; however, most of the patients responded well to appropriate supportive treatment. A slight male preponderance was noted. The most common symptoms encountered were fever, cough, vomiting, fatigue, and diarrhea. Inflammatory markers such as ESR, CRP, serum ferritin, and LDH levels were found to be elevated in nearly all patients. Raised serum lactate and serum creatinine and lymphopenia were of significant note in patients with MIS-C. Higher mortality rates were observed in patients with MIS-C and those requiring respiratory support. In addition to these two factors, the presence of comorbidities and the need for CRRT were associated with prolonged PICU length of stay.

14.
Int J Biol Macromol ; 277(Pt 3): 134384, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39098683

RESUMEN

This study aimed to develop hydrogel dressings for wound healing composed of gum tragacanth (TG) and polyvinyl alcohol (PVA) loaded with Graphene oxide (GO) and Cinnamon oil (CMO) using electron beam irradiation. The impact of the preparation conditions and the incorporation of GO and CMO on the characteristic properties of the prepared CMO-(PVA/TG)-GO wound dressings was evaluated. The healing-related characteristics were assessed, including fluid absorption and retention, water vapor transmission rate (WVTR), hemolytic assay, and antimicrobial potential. Wound healing efficacy was evaluated using a scratch wound healing assay. FTIR analysis verified the chemical structure, whereas scanning electron microscopy demonstrated an appropriate porosity structure necessary for optimal wound healing. The gel content increases with the initial total polymer concentration and the irradiation dose increases. Higher GO and CMO content improve the gel content and decreases swelling. WVTR decreases with the rise in CMO content. In vitro, cytotoxicity and hemolytic potency assessments confirmed their biocompatibility. The incorporation of GO and CMO enhances the antimicrobial activity and wound-healing capability. Based on the above findings, CMO-(PVA/TG)-GO dressings show promising potential as candidates for wound care.


Asunto(s)
Antiinfecciosos , Grafito , Hidrogeles , Alcohol Polivinílico , Tragacanto , Cicatrización de Heridas , Grafito/química , Grafito/farmacología , Alcohol Polivinílico/química , Hidrogeles/química , Hidrogeles/farmacología , Cicatrización de Heridas/efectos de los fármacos , Tragacanto/química , Antiinfecciosos/farmacología , Antiinfecciosos/química , Vendajes , Cinnamomum zeylanicum/química , Animales , Humanos , Hemólisis/efectos de los fármacos , Aceites Volátiles/química , Aceites Volátiles/farmacología , Pruebas de Sensibilidad Microbiana , Electrones
15.
Antibiotics (Basel) ; 13(3)2024 Mar 16.
Artículo en Inglés | MEDLINE | ID: mdl-38534700

RESUMEN

Ceftazidime/avibactam (CAZ-AVI) is FDA-approved for managing infections caused by resistant gram-negative bacilli, particularly infections via carbapenem-resistant Enterobacterales pathogens. The clinical data are still limited, particularly those in Saudi Arabia. The present study is a retrospective cohort study that was carried out at the Armed Forces Hospital in the southern region of Saudi Arabia to compare the clinical and microbiological outcomes for CAZ-AVI-treated patients as monotherapy and as an add-on to standard therapy for carbapenem-resistant Klebsiella pneumonia (CRKP) OXA-48 infections to those treated with standard drugs. The study included CRKP OXA-48-like infected patients who were administered antibiotics for more than seven days from 1 August 2018 to May 2023. Patients' baseline characteristics and demography were extracted from the clinical records, and their clinical/microbiology efficiencies were assessed as per the corresponding definitions. Univariate and multivariate logistic regressions were conducted to identify the potential independent variable for CAZ-AVI efficiency. A total of 114 patient files were included for the evaluation. Among these patients, 64 used CAZ-AVI combined with standard therapy and were included in the intervention group, and 50 of them used standard therapy and were included in the comparative group. Following analysis, CAZ-AVI's clinical success was 42.2% (p = 0.028), while the intervention versus comparative groups showed decreased 30-day all-cause mortality (50.0% versus 70.0%; p = 0.036) and infection recurrence (7.8% versus 24.0%; p = 0.019), as well as substantially increased rates of microbial eradication (68.8% versus 42.0%; p = 0.007). CAZ-AVI add-on therapy rather than monotherapy showed statistically significant favored clinical and microbial outcomes over the standard therapy. Furthermore, sex (female %), ICU admission, and fever were negatively associated with patients' 30-day all-cause mortality, serving as independent negative factors. Only fever, CRP bio levels, inotropes, and ICU admissions were significant predictors influencing the CAZ-AVI's clinical efficiency. The duration of CAZ-AVI therapy positively influenced CAZ-AVI's microbial eradication, while both WBC counts and fever experiences were negative predictors. This study shows the effective usage of CAZ-AVI against CRKP OXA-48-like infections. The influencing independent variables depicted here should recommend that clinicians individualize the CAZ-AVI dose based on co-existing risk factors to achieve optimal survival and efficacy. Prospective multicenter and randomized control studies are recommended, with individualized CAZ-AVI precision administration implemented based on patients' characteristics.

16.
Heliyon ; 10(6): e27495, 2024 Mar 30.
Artículo en Inglés | MEDLINE | ID: mdl-38510057

RESUMEN

Background: Radiation therapy produces reactive oxygen species, which have been linked to various degenerative conditions in periodontal attachment. This study aimed to assess the beneficial effects of aqueous Moringa oleifera leaf extract on the periodontium of albino rats exposed to fractionated gamma radiation. Materials and methods: This experimental study involved 24 adult male albino rats divided into three groups: Group M received M. oleifera leaf extract (300 mg/kg) intraperitoneally for 14 days; Group R received 20 Gy fractionated gamma irradiation; and Group MR received the same M. oleifera regimen as Group M and then fractionated gamma irradiation dose as Group R. On the first and seventh days post-radiation, bone, cementum, and periodontal ligament samples were histologically and histomorphometrically examined. Results: The periodontal ligament, alveolar bone, and cementum showed structural damage in Group R. A relative persistence of normal periodontal tissue structures was seen in Group MR, showing less disruption of the periodontal ligament and greater trabecular bone thickness than Group R. The histomorphometric analysis showed that the mean periodontal ligament width was highest in Group R7 (245.20 µm) and lowest in Group M7 (54.55 µm). In addition, the mean cementum width was highest in Group R1 (88.99 µm) and lowest in Group M1R1 (17.87 µm) and differed significantly between groups. Conclusion: Within the limitations of this study, Moringa oleifera leaf aqueous extract showed the potential to reduce the adverse effects of radiation, control inflammation, and support tissue healing in a rat model.

17.
Int J Biol Macromol ; 243: 125121, 2023 Jul 15.
Artículo en Inglés | MEDLINE | ID: mdl-37263325

RESUMEN

Organic dye contamination, emanating from pharmaceutical, paper, and textile industries into water resources, severely threatens marine and human life even at low concentrations. Photocatalysis is one of the most important remediation techniques that decolorize water by employing the power of light. In this work, the development of floated beads of Sodium Alginate/hydroxyethyl methacrylate (Alg-g-HEMA) encompass graphene oxide (GO) decorated Zinc oxide (ZnO) utilizing ionizing radiation was designed to function as a photocatalyst when exposed to visible light. Floatability was induced using calcium carbonate. GO was sonochemically decorated with ZnO nanoparticles and the yield was characterized using XRD, FTIR, TEM, SEM, and EDX techniques. Optical characteristics of the developed nanostructure were performed using UV-Vis spectrophotometry. The photocatalytic activity of the floated (Alg-g-HEMA)-ZnO@GO beads was assessed for the photo decolorization of methylene blue dye (MB) under visible light. The upshot of operational factors such as photocatalyst dose, pH, initial dye concentration, and irradiation time on the decolorization of MB was examined. It was observed that 1 g of the developed (Alg-g-HEMA)-ZnO@GO photocatalyst was able to decolorize 1000 ml of 20 ppm of MB within 150 min at pH 9. In terms of kinetics, photo-decolorization follows Langmuir Hinshelwood pseudo-first order.


Asunto(s)
Óxido de Zinc , Humanos , Óxido de Zinc/química , Azul de Metileno/química , Luz
18.
SAGE Open Med ; 11: 20503121231208648, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37915839

RESUMEN

Introduction: Maintaining continuity of care is one of the most critical components of providing great care in primary health care. This study aimed to explore continuity of care and its predictors in primary healthcare settings among patients with chronic diseases in Saudi Arabia. Method: Face-to-face cross-sectional interviews were conducted with patients with chronic diseases who had at least four visits to primary care facilities in Riyadh, Saudi Arabia, between November 1, 2022 and March 3, 2023. We determined patients' continuity of care levels using the Bice-Boxerman continuity of care index. A Tobit regression model was used to determine the effects of several factors on the continuity of care index. Results: The interviews were conducted with 193 respondents with chronic diseases of interest. The mean continuity of care index of the entire sample was 0.54. Those with asthma had the highest median continuity of care index at 0.75 (interquartile range, 0.62-0.75), whereas those diagnosed with thyroid disease had a much lower continuity of care index (0.47) (interquartile range, 0.3-0.62). Tobit regression model findings showed that employed respondents with poorer general health had a negative effect on continuity of care index levels. By contrast, a higher continuity of care index was significantly associated with elderly respondents, urban residents, and those diagnosed with dyslipidemia, diabetes, hypertension, or asthma. Conclusions: According to our findings, the continuity of care level in Saudi Arabia's primary healthcare setting is low. The data demonstrate how continuity of care varies among study group characteristics and that improving continuity of care among chronic disease patients in Saudi Arabia is multifaceted and challenging, necessitating a coordinated and integrated healthcare delivery approach.

19.
Front Pharmacol ; 14: 1276491, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-38035002

RESUMEN

Background: Atrial fibrillation (AF) is the most prevalent cardiac arrhythmia type. Patients with AF are often administered anticoagulants to reduce the risk of ischemic stroke due to an irregular heartbeat. We evaluated the efficacy and safety of edoxaban versus warfarin in patients with nonvalvular AF by conducting an updated meta-analysis of real-world studies. Methods: In this comprehensive meta-analysis, we searched two databases, PubMed and EMBASE, and included retrospective cohort observational studies that compared edoxaban with warfarin in patients with nonvalvular AF from 1 January 2009, to 30 September 2023. The effectiveness and safety outcomes were ischemic stroke and major bleeding, respectively. In the final analysis, six retrospective observational studies involving 87,236 patients treated with warfarin and 40,933 patients treated with edoxaban were included. To analyze the data, we used a random-effects model to calculate the hazard ratio (HR). Results: Patients treated with edoxaban had a significantly lower risk of ischemic stroke [hazard ratio (HR) = 0.66; 95% confidence interval (CI) = 0.61-0.70; p < 0.0001] and major bleeding (HR = 0.58; 95% CI = 0.49-0.69; p < 0.0001) than those treated with warfarin. The sensitivity analysis results for ischemic stroke and major bleeding were as follows: HR = 0.66; 95% CI = 0.61-0.70; p < 0.0001 and HR = 0.58; 95% CI = 0.49-0.69; p < 0.0001, respectively. Conclusion: Our findings revealed that edoxaban performed better than warfarin against major bleeding and ischemic stroke.

20.
Antibiotics (Basel) ; 12(2)2023 Jan 19.
Artículo en Inglés | MEDLINE | ID: mdl-36830119

RESUMEN

Surgical site infections (SSIs) are the most common healthcare-associated infections that occur among surgical patients. Surgical site infections result in longer hospital stays, hospital readmissions, and higher death and morbidity rates. The current study was designed to highlight the importance of such surveillance studies in a Malaysian surgical population with a motive to evaluate and revise concurrent infection control and prevention policies by exploring the burden of surgical site infection and identifying its associated risk factors for future considerations. In this prospective observational cohort study, a total of 216 patients admitted to a surgical ward were identified and studied. Of these 216 patients, 142 elective procedures and 74 emergency procedures were included in the study, of which 13 patients (9.2%) undergoing elective procedures and 15 (20.3%) patients undergoing emergency procedures were SSI positive (OR: 2.5, p = 0.02). Among surgical site infections, 21 were superficial and 7 were deep incisional SSI. No case of organ/space SSI was identified. The time taken for SSIs to develop ranged from 2-17 days with a median of 6 days. Risk factors such as presence of comorbidities (p = 0.011), major co-existing medical diagnosis ≥2 (p = 0.02), and pre-existing infection (p = 0.027) were statistically significant. SSI-positive patients experienced an increase in the post-operative length of hospital stay. In the current population, it was seen that identifying patients who were at high risk of malnutrition via MUST and the NNIS risk index will help clinicians in identifying high risk patients and in managing their patients appropriately. Identifying patients who were at high risk of malnutrition will also improve postoperative outcomes considerably.

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