The influence of anxiety and depression on critical care nurses' performance: A multicenter correlational study.

BACKGROUND: Anxiety and depression among critical care nurses (CCNs) negatively affect performance because of association with clinical medical errors, ineffective communication, absenteeism from work, and burnout. OBJECTIVES: The aim of this study was to investigate the prevalence of anxiety and depression and their associated factors as well as their impact on the CCNs' performance in Hail city, Saudi Arabia. METHODS: A cross-sectional correlational study was conducted among 262 CCNs from April to June 2023. RESULTS: The mean scores of anxiety and depression were significantly higher among male and Saudi CCNs than among their counterparts (p < 0.05). CCNs caring for patients in a ratio of 1:5 or more had significantly higher anxiety scores than those with lower nurse-to-patient ratios (p = 0.004). CCNs who were working night shifts had significantly higher mean scores of anxiety (p = 0.005) and lower mean scores of performance (p = 0.041) than their counterparts. Borderline anxiety and depression were prevalent among 43.1% and 38.5% of CCNs, respectively. In contrast, abnormal anxiety and depression were prevalent among 8.8% and 5.7% of CCNs, respectively. CCNs' mental, general, and total performance showed a significant negative correlation with both anxiety ([r = -0.247, p <0.001], [r = -0.183, p = 0.003], and [r = -0.172, p = 0.005], respectively) and depression (r = -0.287, p <0.001), (r = -0.207, p <0.001), and (r = -0.180, p = 0.003), respectively. CONCLUSIONS: Anxiety and depression levels are significantly higher among male, Saudi CCNs, higher nurse-to-patient ratios, those who work night shifts than among their counterparts. Less than half of CCNs experience borderline anxiety and/or depression that had significantly negative correlation with their performance. Anxiety and depression in shift nurses may be treated by reducing workload, causes of stress during night shifts, and giving practical coping mechanisms for typical nurse job pressures.

HPLC METHOD FOR THE QUANTIFICATION OF SOME ACTIVE FLAVONOIDS IN ETHYL ACETATE EXTRACT OF LEAVES OF BUTEA MONOSPERMA LINN.

AIM: The aim of the present investigation is to study HPLC process to evaluate Some Active Flavonoids in Ethyl Acetate Extract of Leaves of Butea monosperma Linn. MATERIAL AND METHODS: Using a soxhlation device, the leaves of Butea monosperma Linn. were extracted in stages. Each powdered batch (500g) was extracted in stages with polarity-graded solvents such as petroleum ether (Pet. Et) (60-80º), chloroform (CHCl3), ethyl acetate (EtOAc) using a soxhlet extractor. Alkaloids, flavonoids, glycosides, tannins, phenols, and steroids, among other chemical families of components, were identified through qualitative phytochemical screenings of each extract. To make a 10 g/ml stock, standard phenolic markers like quercetin, rutin, catechin, gallic acid, and chlorogenic acid were dissolved in methanol. Phytoconstituents were separated and identified from extracts using various solvents and combinations of solvents, which were chosen after consulting the literature. RESULTS AND DISCUSSION: Preliminary phytochemical screening showed the revealed that the leaves contain steroid, triterpenoids, fatty acid and alkaloids. While the ethyl acetate extract found to contain therapeutically important phytoconstitutes such as steroids, triterpenoids, saponins, flavonoids, and tannins. Bioactive extracts of Butea monosperma were found to include flavonoids and phenolic substances. In ethyl acetate extract, various flavonoids and phenolic compounds were discovered. CONCLUSION: This is a preliminary report on the identification of phytochemical and HPLC evaluation of ethyl acetate extract of leaves of Butea monosperma Linn. and to unravel the mechanisms driving bioactive qualities and the existence of putative synergy among these substances, more research is needed on the isolation and characterization of individual Flavonoids or phenolic compounds.

Antiproliferative effect of Solanum nigrum L. water extract on breast can-cer cells: potential roles of apoptosis and oxidative stress.

Breast cancer is the most progressive cancer among women worldwide. The currently available chemotherapeutic agents induce severe unacceptable adverse effects in breast cancer patients. In this context, natural medicinal herbs are gaining importance to find non-toxic effective anticancer drugs. Solanum nigrum is one of the major traditional medicinal plants widely used in Ayurveda for the treatment of various diseases. This study investigated the anticancer effect of Solanum nigrum water extract (SNWE) against MCF-7 and triple-negative MDA-MB-231 breast cancer cell lines. SNWE significantly induced oxidative stress-mediated apoptotic cell death in a concentration-dependent manner. Real-time PCR results illustrated the upregulation of proapoptotic genes and downregulation of antiapoptotic genes after SNWE treatment in MCF-7 and MDA-MB-231 cell lines. Immunofluorescence analysis showed increased expressions of apoptotic markers like p53, Caspase3 and BAX by SNWE treatment. In conclusion, the findings of this study indicate the antiproliferative effect and apoptosis-inducing property of SNWE in both cell lines. Further studies are warranted on testing the anticancer activity of S. nigrum L. using animal models of cancer.

CHROMATOGRAPHIC SPECTROPHOTOMETRIC DETERMINATION USING REVERSE PHASE HPLC TECHNIQUE FOR MESALAZINE OR MESALAMINE.

The aim of this paper is to estimate Mesalazine or Mesalamine (MESA) in pharmaceuticals. The reversed-phase HPLC (RP-HPLC) results were used to evaluate the type of Mesalazine. Chromatographic analysis was carried out using an HPLC-UV method along with an Ion Pac column (Arcus EP-C18; 5 m, 4.6 mm, 250 mm) and a mobile phase of acetonitrile: acetic acid: water, 40:40:20 (v/v/v) + 0.5 M potassium dihydrogen orthophosphate buffer at pH 3.3, at a flow rate of 1.0 ml/min. At 260 nm, UV detection was employed in the HPLC method. Exactness, precision, particularity, linearity, and affectability were all accepted for the technique. The (MESA) had a maintenance time of (3.17) minutes. The (MESA) alignment plots were over the target ranges of 1-5 g/L, R2 0.9998. The quantitation limit was 0.3613 g/ml, with a detection limit of 1.636 g/ml. The precision of the proposed procedure, which ranged from 98.0 percent to 100 percent, was determined through recovery experiments. The modern HPLC-UV approach was used to analyze generic drug products, and the planned technique's efficiency was confirmed. The study's findings show that precision, accuracy, and efficiency are all within reasonable limits, so there is no substantial difference between the values obtained using the proposed methodology and those obtained using the traditional method.

Bioactive-Based Cosmeceuticals: An Update on Emerging Trends.

Cosmetic-containing herbals are a cosmetic that has or is claimed to have medicinal properties, with bioactive ingredients purported to have medical benefits. There are no legal requirements to prove that these products live up to their claims. The name is a combination of "cosmetics" and "pharmaceuticals". "Nutricosmetics" are related dietary supplements or food or beverage products with additives that are marketed as having medical benefits that affect appearance. Cosmetic-containing herbals are topical cosmetic-pharmaceutical hybrids intended to enhance the health and beauty of the skin. Cosmetic-containing herbals improve appearance by delivering essential nutrients to the skin. Several herbal products, such as cosmetic-containing herbals, are available. The present review highlights the use of natural products in cosmetic-containing herbals, as natural products have many curative effects as well as healing effects on skin and hair growth with minimal to no side effects. A brief description is given on such plants, their used parts, active ingredients, and the therapeutic properties associated with them. Mainly, the utilization of phytoconstituents as cosmetic-containing herbals in the care of skin and hair, such as dryness of skin, acne, eczema, inflammation of the skin, aging, hair growth, and dandruff, along with natural ingredients, such as for hair colorant, are explained in detail in the present review.

Basic life support knowledge in a war-torn country: a survey of nurses in Yemen.

BACKGROUND: Successful implementation of Basic life support (BLS) is critical to improving survival rates and outcomes, especially among healthcare workers. To our knowledge, there is no available literature pertaining to the level of BLS knowledge of health care professionals in Yemen. METHODS: Data was collected for this cross-sectional descriptive study from June to August 2020, using a 10-item questionnaire related to cardiopulmonary resuscitation (CPR) and BLS, along with questions on socio-demographic characteristics. Participants were nurses in public and private hospitals located in Al-Rahida and Al-dimna cities, Taiz governance and Hodeidah city, Hodeidah governance in Yemen. RESULTS: Out of 220 distributed questionnaires, 200 were returned with a response rate of 90.9%. More than a half (53.65%) of answer choices for BLS knowledge were correct. There was a significant difference in knowledge score based on level of education where those who had Bachelor degree had more knowledge (P = 0.000). Those who said they had received training in CPR or received information about CPR had significantly higher scores than those who did not receive (P = 0.000). CONCLUSIONS: BLS knowledge among nurses in Yemen is below an acceptable level to ensure maximum survival in the event of cardiac arrest. Disseminating BLS information and training in a cost effective and efficient manner will provide a large benefit in terms of lives saved with minimal costs.

Pro-Apoptotic and Immunotherapeutic Effects of Carbon Nanotubes Functionalized with Recombinant Human Surfactant Protein D on Leukemic Cells.

Nanoparticles are efficient drug delivery vehicles for targeting specific organs as well as systemic therapy for a range of diseases, including cancer. However, their interaction with the immune system offers an intriguing challenge. Due to the unique physico-chemical properties, carbon nanotubes (CNTs) are considered as nanocarriers of considerable interest in cancer diagnosis and therapy. CNTs, as a promising nanomaterial, are capable of both detecting as well as delivering drugs or small therapeutic molecules to tumour cells. In this study, we coupled a recombinant fragment of human surfactant protein D (rfhSP-D) with carboxymethyl-cellulose (CMC) CNTs (CMC-CNT, 10-20 nm diameter) for augmenting their apoptotic and immunotherapeutic properties using two leukemic cell lines. The cell viability of AML14.3D10 or K562 cancer cell lines was reduced when cultured with CMC-mwCNT-coupled-rfhSP-D (CNT + rfhSP-D) at 24 h. Increased levels of caspase 3, 7 and cleaved caspase 9 in CNT + rfhSP-D treated AML14.3D10 and K562 cells suggested an involvement of an intrinsic pathway of apoptosis. CNT + rfhSP-D treated leukemic cells also showed higher mRNA expression of p53 and cell cycle inhibitors (p21 and p27). This suggested a likely reduction in cdc2-cyclin B1, causing G2/M cell cycle arrest and p53-dependent apoptosis in AML14.3D10 cells, while p53-independent mechanisms appeared to be in operation in K562 cells. We suggest that CNT + rfhSP-D has therapeutic potential in targeting leukemic cells, irrespective of their p53 status, and thus, it is worth setting up pre-clinical trials in animal models.

Design of expert guided investigation of native L-asparaginase encapsulated long-acting cross-linker-free poly (lactic-co-glycolic) acid nanoformulation in an Ehrlich ascites tumor model.

Present study explores native L-asparaginase encapsulated long-acting cross-linker-free PLGA-nanoformulation in an Ehrlich ascites tumor model. L-asparaginase-PLGA nanoparticles for tumor were prepared using a double emulsion solvent evaporation technique, optimized and validated by Box-Behnken Design. L-ASN-PNs showed a particle size of 195 nm ± 0.2 nm and a PDI of 0.2. Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques revealed its smooth morphology and elicited an in-vitro release of 80% of the drug, following the Higuchi drug release model. In-vivo studies of L-ASN-PNs on an Ehrlich ascites tumor (EAT) model were completed and compared with the standard medication of 5-fluorouracil (5-FU) treatment. L-ASN-PN treated mice showed a 51.15% decrease in tumor volume and 100% survival rate with no reduction in body weight, no haemotoxicity and no hepatotoxicity, as evident from the hematological parameters, and liver enzyme parameters that were well within the prescribed limits. Chemotherapy has severe side effects and restricted therapeutic success. Henceforth, the purported L-Asparaginase PLGA nanoparticles are a suitable entity for better tumor regression, intra-tumor accumulation and no hematological side-effects.

Wind Generated Rogue Waves in an Annular Wave Flume.

We investigate experimentally the statistical properties of a wind-generated wave field and the spontaneous formation of rogue waves in an annular flume. Unlike many experiments on rogue waves where waves are mechanically generated, here the wave field is forced naturally by wind as it is in the ocean. What is unique about the present experiment is that the annular geometry of the tank makes waves propagating circularly in an unlimited-fetch condition. Within this peculiar framework, we discuss the temporal evolution of the statistical properties of the surface elevation. We show that rogue waves and heavy-tail statistics may develop naturally during the growth of the waves just before the wave height reaches a stationary condition. Our results shed new light on the formation of rogue waves in a natural environment.

Pyrazinamide Is Active against Mycobacterium tuberculosis Cultures at Neutral pH and Low Temperature.

For the past decades, an acidic pH has been used to render Mycobacterium tuberculosis susceptible to pyrazinamide for in vitro testing. Here, we show that at the standard breakpoint concentration and reduced culture temperatures, pyrazinamide (PZA) is active against tuberculosis (TB) at neutral pH. This finding should help unravel the mechanism of action of PZA and allow drug susceptibility testing (DST) methods to be optimized.

Pharmacy education instruction: Preference and practices, Saudi students' perception.

AIM/BACKGROUND: The methods of instruction in pharmacy education are crucial and meant to suit the professional development and encompass the advanced variety of services and functions provided by the pharmacists to serve individual patients. The aim of this study was to determine the students' opinions on the adopted and preferred methods of instruction in pharmacy colleges in Kingdom of Saudi Arabia. METHODS: Opinions of Saudi pharmacy students regarding the adopted methods of learning were measured using a pretested questionnaire combined with Likert-type scales. RESULTS: Three hundred pharmacy students were interviewed. Direct type of lecturing was dominant (53.7%). The most frequently used language of instruction was combined English and Arabic (48.8%), that was mostly preferred by 52.5% of the students. Handouts were the most adopted post-lecture learning method (48.3%), while only 5.9% used student's self-written notes. A cocktail of traditional and electronic aids was used as admitted by 68.7% and 59.3% of the students who preferred this lecture delivery method. Almost half (49.3%) of the students agreed of having a routine fair guidance and support when referring to their lecturers. CONCLUSION: The study outcomes had revealed a practical guidance to be considered for instituting preferred modes of instruction to upgrading students' capacities for better understanding and acquiring academic and professional skills.

Improvement of the photoelectric dye sensitized solar cell performance using Fe/S-TiO2 nanoparticles as photoanode electrode.

A sulfur nanoparticles-incorporated iron-doped titanium oxide (Fe/TiO2) with different ratio was successfully synthesized by photolysis method and utilized as effective photoanode in dye sensitized solar cell (DSSC) application with N719 dye. The photolysis method was contained the irradiation of the Fe, S and Ti mixture solution with 15 W source irradiation, and then calcined the formed precipitate. The DSSCs fabricated with Fe/S-TiO2 photoanode appeared an improved solar-to-electrical energy conversion efficiency of 6.46, which more than pure TiO2 (3.43) below full sunlight illumination (1.5 G). The impact of Fe content on the total efficiency was also inspected and the Fe content with 6% S-TiO2 was found 5 wt%. Due to the improved the efficiency of solar cell conversion of Fe/S-TiO2 nanocomposite, it should be deemed as a potential photoanode for DSSCs with high performance.

Language and Communication Barriers in Emergency Departments in Makkah: Physicians' Perspective.

Background Communication is essential in the medical sector, particularly in the emergency departments (ED), to provide appropriate patient care. Lack of patient history and large patient numbers, cultural variations, inadequate health literacy, and language difficulties can impact effective communication. Aim This study aims to examine language and communication barriers experienced by ED physicians in Makkah, Saudi Arabia, as well as to determine the effect of language barriers on patient care and explore possible methods to deal with language and communication barriers. Methods This cross-sectional study was conducted from April 8 to June 6, 2023. A total of 136 responses were collected from ED physicians at the six Ministry of Health Hospitals (MOH) in Makkah through a validated online survey. The data analysis was implemented using RStudio (R version 4.1.1). Result In this study, 136 participants' data were examined. Of note, one-quarter of ED physicians (25%; n=34) under study stated that they always experienced language barriers, whereas 64.7% (n=88) of them sometimes experienced these difficulties. More than half of the ED physicians (54.4%; n=74) stated that their patients had poor outcomes because of poor communication. Among those who responded positively to poor outcomes, ED physicians' suggestions to improve communication with patients included providing labels of the common scientific terminologies in different languages (59.6%; n=81) and providing courses to communicate in foreign languages (48.5%; n=66). Conclusion Exposure to language barriers among ED physicians in Makkah was slightly high. This may impact the patient's outcomes. Therefore, strategies to improve patient-physician communication are needed.

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.

Experimental and theoretical study of improved mesoporous titanium dioxide perovskite solar cell: The impact of modification with graphene oxide.

The present study serves experimental and theoretical analyses in developing a hybrid advanced structure as a photolysis, which is based on electrospun Graphene Oxide-titanium dioxide (GO-TiO2) nanofibers as an electron transfer material (ETMs) functionalized for perovskite solar cell (PVSCs) with GO. The prepared ETMs were utilized for the synthesis of mixed-cation (FAPbI3)0.8(MAPbBr3)0.2. The effect of GO on TiO2 and their chemical structure, electronic and morphological characteristic were investigated and discussed. The elaborated device, namely ITO/Bl-TiO2/3 wt% GO-TiO2/(FAPbI3)0.8(MAPbBr3)0.2/spiro-MeTAD/Pt, displayed 20.14% disposition and conversion solar energy with fill factor (FF) of 1.176%, short circuit current density (Jsc) of 20.56 mA/cm2 and open circuit voltage (VOC) 0.912 V. The obtained efficiency is higher than titanium oxide (18.42%) and other prepared GO-TiO2 composite nanofibers based ETMs. The developed materials and device would facilitate elaboration of advanced functional materials and devices for energy storage applications.

Organic chemical Nano sensors: synthesis, properties, and applications.

Nanosensors work on the "Nano" scale. "Nano" is a unit of measurement around 10- 9 m. A nanosensor is a device capable of carrying data and information about the behavior and characteristics of particles at the nanoscale level to the macroscopic level. Nanosensors can be used to detect chemical or mechanical information such as the presence of chemical species and nanoparticles or monitor physical parameters such as temperature on the nanoscale. Nanosensors are emerging as promising tools for applications in agriculture. They offer an enormous upgrade in selectivity, speed, and sensitivity compared to traditional chemical and biological methods. Nanosensors can be used for the determination of microbe and contaminants. With the advancement of science in the world and the advent of electronic equipment and the great changes that have taken place in recent decades, the need to build more accurate, smaller and more capable sensors was felt. Today, high-sensitivity sensors are used that are sensitive to small amounts of gas, heat, or radiation. Increasing the sensitivity, efficiency and accuracy of these sensors requires the discovery of new materials and tools. Nano sensors are nanometer-sized sensors that, due to their small size and nanometer size, have such high accuracy and responsiveness that they react even to the presence of several atoms of a gas. Nano sensors are inherently smaller and more sensitive than other sensors.

The Role of Mitochondrial Dysfunction in Cytotoxic Effects of Solanum nigrum Water Extract on MCF-7 and MDA-MB-231 Breast Cancer Cells.

BACKGROUND: Recent studies suggest that numerous naturally occurring agents have the potential to kill cancer cells via mitochondrial dysfunction. Solanum nigrum is a herb widely used in alternative medical systems. This study aimed to investigate the cytotoxic effect of Solanum nigrum water extract (SNWE) against Michigan Cancer Foundation-7 (MCF-7) and MD Anderson-Metastatic Breast Cancer-231 (MDA-MB-231) cells. METHODS: We used an MTT reduction assay for cytotoxicity analysis. To explore the mode of action, the cellular adenosine triphosphate (ATP) levels and mitochondrial membrane potential were analyzed using a colorimetric ATP assay and Rhodamine-123 fluorescent staining, respectively, during SNWE treatment for 72 h. RESULTS: The cytotoxic effect was significant in both cell lines, with IC50 values of 4.26 µg/mL and 5.30 µg/mL in MCF-7 and MDA-MB-231 cells, respectively. The 24, 48, and 72 h treatments of 100 µg/mL SNWE showed 0.85 ± 0.07, 0.38 ± 0.1, and 0.20 ± 0.1 nM ATP in MCF-7 cells and 0.94 ± 0.07, 0.84 ± 0.2 and 0.46 ± 0.2 nM in MDA-MB-231 cells, respectively. The SNWE treatment altered the mitochondrial membrane potential (ΔΨm) in a concentration-dependent manner in both the breast cancer cell lines, to 29.6 ± 4.1% in MCF-7 and 28.7 ± 4.17% in MDA-MB-231 cells, when compared with healthy mitochondria (100% ΔΨm). CONCLUSIONS: The cytotoxic effects of Solanum nigrum against breast cancer cells are associated with energy metabolism. Additional studies are warranted to test the anticancer effect of Solanum nigrum using an animal model of breast cancer.

Comparative Study of Microbial Adhesion on Different Orthodontic Brackets - An In Vivo Study.

Aim: To study the microbial adhesion on different orthodontic brackets (conventional, ceramic, and self-ligating brackets). Materials and Methods: Three types of bracket systems i.e. self-ligating, conventional, and ceramic brackets were used consisting of 10 patients for each bracket system. Out of 30 patients 20 patients will be treated with conventional and ceramic brackets, in which, in one-half of the mouth steel ligature ties are placed and in the other half elastomeric rings would be placed. We collected swabs from the central incisors and first premolars of the both the right and left sides of both the maxillary and mandibular arches. The samples were collected three times from the above-mentioned teeth once prior to the placement of the brackets, the second and third samples after one and three months respectively. Result: Significant variations were between the pretreatment and after one and three months of bracket placement in all three groups. Significant increase in the microbial adhesion of aerobic and anaerobic bacteria in conventional bracket form pretreatment to one and three months after bracket placement is seen. Although the colony formed by anaerobic bacteria is more in number in comparison to the aerobic bacteria. Conclusion: Our study reveals that the most hygienic bracket is a self-ligating bracket that should be used in patients who have poor oral hygiene. We also found that using steel ligature is more suitable as compared to elastomeric ligature in both conventional and ceramic brackets.

2-(Benzhydryl sulfinyl)-N-sec-butylacetamide) isolated from fig augmented trastuzumab-triggered phagocytic killing of cancer cells through interface with Fcγ receptor.

The objective of the current study was to extract 2-(benzhydryl sulfinyl)-N-sec-butylacetamide), a novel compound from fig, and then determine its role in enhancing trastuzumab-triggered phagocytic killing of SKOV-3 cancer cells. In this study, Soxhlet was used to extract the compound from the mature and air-dried fig fruits. The production of the isolated extracts was enhanced by using polar and non-polar solvents. Several solvents, such as methanol, ethyl acetate, chloroform, and n-hexane, were used to isolate the effective compound 2-(benzhydryl sulfinyl)-N-sec-butylacetamide) from the organic layer. UV-spectroscopy, FT-IR, 1H-NMR, and 13C-NMR were applied to identify the purified compound. The in vitro and in vivo assays demonstrated that the 2-(benzhydryl sulfinyl)-N-sec-butylacetamide) can increase the activity of the phagocytic cells, via the interaction with FcY receptors, along with trastuzumab, and the pathway can use a model for the therapeutic strategy for effective treatment of ovarian cancer cells.

COVID-19 Vaccination Knowledge, Perception, and Reason for Adherence and nonadherence Among Nursing Students in Egypt.

Introduction: Vaccines are considered preventive measures to reduce coronavirus disease 2019 (COVID-19) spread around the world. There are many factors for adherence and acceptance of COVID-19 vaccination. Objectives: The study aimed to investigate nursing students' knowledge, perception, and factors that influence their adherence to COVID-19 vaccines. Methods: A descriptive cross-sectional study design was conducted among nursing students at the Faculty of Nursing, Mansoura University, Egypt, during the period between September 1 and November 30, 2021. Results: Of the total of 500 participants, 76% took a COVID-19 vaccination. About 89% of participants rated the correct answer related to COVID-19 vaccination. Obligatory to enter the faculty, protect family and friends, and protect myself were the most reasons of adherence (80.3, 73.7, and 70.8%, respectively) while fear of adverse events and lack of information about vaccine were the most reasons of nonadherence (87.5 and 79.2%, respectively) to COVID-19 vaccination. The majority of participants (62%) had expressed positive perception toward COVID-19 vaccination. Education level, training program about COVID-19, previous infection with COVID-19, perception toward COVID-19 vaccination, and knowledge toward COVID-19 vaccination were significantly (p = .035, p = .027, p = .009, p = .008 and p = .033, respectively) associated with students' adherence to take COVID-19 vaccines. Conclusion: Accurate knowledge and perception about COVID-19 vaccines are the stronger predictors of vaccine hesitance or acceptance among nursing students in Egypt. Campaigns to increase knowledge and perception of COVID-19 and its vaccines among nursing students are needed to improve vaccine acceptance and reduce vaccine hesitance.