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1.
BMC Infect Dis ; 24(1): 500, 2024 May 17.
Artigo em Inglês | MEDLINE | ID: mdl-38760732

RESUMO

BACKGROUND: Dengue Viral Infection (DVI) has become endemic in Pakistan since the first major outbreak in Karachi in 1996. Despite aggressive measures taken by relevant authorities, Pakistan has been dealing with a worsening dengue crisis for the past two decades. DHF is severe form of dengue infection which is linked with significant morbidity and mortality. Early identification of severe dengue infections can reduce the morbidity and mortality. In this context we planned current study in which we find out the different factors related with DHF as well as clinical laboratory features of DHF and compare them to DF so that patients can be best evaluated for DHF and managed accordingly at admission. METHODS: Retrospective study conducted over a period of 6 years (2013-2018) in two tertiary care hospitals in Pakistan. Data were collected by using a pre-structured data collection form. Data were statistically analyzed to determine the clinical and laboratory characteristics of DVI and risk factors of dengue hemorrhagic fever (DHF). RESULTS: A total 512 dengue cases (34.05 ± 15.08 years; Male 69.53%) were reviewed. Most common clinical manifestations of DVI were fever (99.60%), headache (89.1%), chills (86.5%), rigors (86.5%), myalgia (72.3%). Less common clinical manifestations were vomiting (52.5%), arthralgia (50.2%) and skin rashes (47.5%). Furthermore, nasal bleeding (44.1%), gum bleeding (32.6%), pleural effusion (13.9%) and hematuria (13.1%) were more profound clinical presentations among DHF patients. Mortality rate was 1.5% in this study. Logistic regression analysis indicated that delayed hospitalization (OR: 2.30) and diabetes mellitus (OR:2.71), shortness of breath (OR:2.21), association with risk groups i.e., living near stagnant water, travelling to endemic areas, living in endemic regions (OR:1.95), and presence of warning signs (OR:2.18) were identified as risk factors of DHF. Statistically we found that there is strong association of diabetes mellitus (DM) with DHF while the patient suffering from DM individually had higher odds (2.71) of developing DHF than patients without disease. CONCLUSIONS: The current study demonstrated that the clinical and laboratory profiles of DF and DHF are significantly distinct. Significant predictors of DHF were advanced age, diabetes mellitus, ascites, pleural effusion, thick gallbladder and delayed hospitalization. The identification of these factors at early stage provides opportunities for the clinicians to identify high risk patients and to reduce dengue-related morbidity and mortality.


Assuntos
Dengue Grave , Humanos , Estudos Retrospectivos , Dengue Grave/epidemiologia , Masculino , Feminino , Fatores de Risco , Adulto , Pessoa de Meia-Idade , Paquistão/epidemiologia , Adulto Jovem , Vírus da Dengue/patogenicidade , Adolescente , Dengue/epidemiologia , Dengue/mortalidade , Idoso
2.
Medicina (Kaunas) ; 60(1)2024 Jan 15.
Artigo em Inglês | MEDLINE | ID: mdl-38256424

RESUMO

COVID-19 is primarily a respiratory disease, but numerous studies have indicated the involvement of various organ systems during the course of illness. We conducted a comprehensive review of atypical complications of COVID-19 with their incidence range (IR) and their impact on hospitalization and mortality rates. We identified 97 studies, including 55 research articles and 42 case studies. We reviewed four major body organ systems for various types of atypical complications: (i) Gastro-intestinal (GI) and hepatobiliary system, e.g., bowel ischemia/infarction (IR: 1.49-83.87%), GI bleeding/hemorrhage (IR: 0.47-10.6%), hepatic ischemia (IR: 1.0-7.4%); (ii) Neurological system, e.g., acute ischemic stroke/cerebral venous sinus thrombosis/cerebral hemorrhage (IR: 0.5-90.9%), anosmia (IR: 4.9-79.6%), dysgeusia (IR: 2.8-83.38%), encephalopathy/encephalitis with or without fever and hypoxia (IR: 0.19-35.2%); (iii) Renal system, e.g., acute kidney injury (AKI)/acute renal failure (IR: 0.5-68.8%); (iv) Cardiovascular system, e.g., acute cardiac injury/non-coronary myocardial injury (IR: 7.2-55.56%), arrhythmia/ventricular tachycardia/ventricular fibrillation (IR: 5.9-16.7%), and coagulopathy/venous thromboembolism (IR: 19-34.4%). This review encourages and informs healthcare practitioners to keenly monitor COVID-19 survivors for these atypical complications in all major organ systems and not only treat the respiratory symptoms of patients. Post-COVID effects should be monitored, and follow-up of patients should be performed on a regular basis to check for long-term complications.


Assuntos
Injúria Renal Aguda , Encefalopatias , COVID-19 , AVC Isquêmico , Humanos , COVID-19/complicações , Injúria Renal Aguda/epidemiologia , Injúria Renal Aguda/etiologia , Isquemia
3.
Saudi Pharm J ; 32(3): 101957, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38313822

RESUMO

An orally administered bilayer tablet with Tamsulosin (TAM) as the sustained release (SR) and Finasteride (FIN) as immediate release (IR) was manufactured. A response surface methodology was employed to formulate bilayer tablets with individual release layers, i.e., sustained and immediate release (SR and IR). Independent variables selected in both cases comprise hydroxypropyl methylcellulose (HPMC) as SR polymer, and avicel PH102 in the inner layer while Triacetin and talc in the outer layer, respectively. Tablets were prepared by direct compression, a total of 11 formulations were prepared for inner layer TAM, and 9 formulations for outer layer FIN were designed; these formulations were evaluated for hardness, friability, thickness, %drug content, and %drug release. A central composite design was employed in response surface methodology to design and optimize the formulation. The percentage of drug released was evaluated by in-vitro USP dissolution method of optimized formulation for 0.5, 2, and 6 hrs, and results were 24.63, 52.96, and 97.68 %, respectively. Drug release data was plotted in various kinetic models using a D.D solver, where drug release was first order that is concentration dependent and was best explained by Korsmeyer-Peppa kinetics, as the highest linearity was observed (R2 = 0.9693). However, a very close relationship was also noted with Higuchi kinetics (R2 = 0.9358). The mechanism of drug release was determined through the Korsmeyer model, and exponent "n" was found to be 0.4, indicative of an anomalous diffusion mechanism or diffusion coupled with erosion.

4.
Pak J Pharm Sci ; 37(1): 95-105, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38741405

RESUMO

Hydrophilic drugs could be incorporated into the skin surface by manes of Lipogel. This study aimed to prepare miconazole lipogel with natural ingredients to enhance drug permeability using dimethyl Sulfoxide (DMSO). The miconazole lipogels, A1 (without DMSO) and A2 (with DMSO) were formulated and evaluated for organoleptic evaluation, pH, viscosity, stability studies, freeze-thawing, drug release profile and drug permeation enhancement. Results had stated that prepared lipogel's pH falls within the acceptable range required for topical delivery (4 to 6) while both formulations show good results in organoleptic evaluation. The A2 formulation containing DMSO shows better permeation of miconazole (84.76%) on the artificial skin membrane as compared to A1 lipogel formulation (50.64%). In in-vitro drug release studies, A2 for-mulation showed 87.48% drug release while A1 showed just 60.1% drug release from lipogel. Stability studies were performed on model formulations under environmental conditions and both showed good spreadibility, stable pH, free of grittiness and good consistency in formulation. The results concluded that A2 formulation containing DMSO shows better results as compared to DMSO-free drug lipogel.


Assuntos
Dimetil Sulfóxido , Liberação Controlada de Fármacos , Géis , Miconazol , Permeabilidade , Miconazol/administração & dosagem , Miconazol/química , Miconazol/farmacocinética , Dimetil Sulfóxido/química , Viscosidade , Estabilidade de Medicamentos , Concentração de Íons de Hidrogênio , Absorção Cutânea/efeitos dos fármacos , Química Farmacêutica , Composição de Medicamentos , Antifúngicos/administração & dosagem , Antifúngicos/química , Antifúngicos/farmacocinética , Administração Cutânea
5.
Molecules ; 27(23)2022 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-36500493

RESUMO

Tenofovir alafenamide (TAF) is an antiretroviral (ARV) drug that is used for the management and prevention of human immunodeficiency virus (HIV). The clinical availability of ARV delivery systems that provide long-lasting protection against HIV transmission is lacking. There is a dire need to formulate nanocarrier systems that can help in revolutionizing the way to fight against HIV/AIDS. Here, we aimed to synthesize a polymer using chitosan and polyethylene glycol (PEG) by the PEGylation of chitosan at the hydroxyl group. After successful modification and confirmation by FTIR, XRD, and SEM, TAF-loaded PEGylated chitosan nanoparticles were prepared and analyzed for their particle size, zeta potential, morphology, crystallinity, chemical interactions, entrapment efficacy, drug loading, in vitro drug release, and release kinetic modeling. The fabricated nanoparticles were found to be in a nanosized range (219.6 nm), with ~90% entrapment efficacy, ~14% drug loading, and a spherical uniform distribution. The FTIR analysis confirmed the successful synthesis of PEGylated chitosan and nanoparticles. The in vitro analysis showed ~60% of the drug was released from the PEGylated polymeric reservoir system within 48 h at pH 7.4. The drug release kinetics were depicted by the Korsmeyer-Peppas release model with thermodynamically nonspontaneous drug release. Conclusively, PEGylated chitosan has the potential to deliver TAF from a nanocarrier system, and in the future, cytotoxicity and in vivo studies can be performed to further authenticate the synthesized polymer.


Assuntos
Quitosana , Infecções por HIV , Nanopartículas , Humanos , Quitosana/química , Nanopartículas/química , Polietilenoglicóis/química , Liberação Controlada de Fármacos , Tamanho da Partícula , Adenina , Portadores de Fármacos/química
6.
Medicina (Kaunas) ; 58(12)2022 Dec 06.
Artigo em Inglês | MEDLINE | ID: mdl-36557002

RESUMO

Background: Individuals with underlying chronic illnesses have demonstrated considerable hesitancy towards COVID-19 vaccines. These concerns are primarily attributed to their concerns over the safety profile. Real-world data on the safety profile among COVID-19 vaccinees with comorbid conditions are scarce. This study aimed to ascertain the side-effects profile after two doses of COVID-19 vaccines among chronic-disease patients. Methodology: A cross-sectional questionnaire-based study was conducted among faculty members with comorbid conditions at a public educational institute in Saudi Arabia. A 20-item questionnaire recorded the demographics and side effects after the two doses of COVID-19 vaccines. The frequency of side effects was recorded following each dose of vaccine, and the association of the side-effects score with the demographics was ascertained through appropriate statistics. Results: A total of 204 patients with at least one comorbid condition were included in this study. A total of 24 side effects were reported after the first dose and 22 after second dose of the COVID-19 vaccine. The incidence of at least one side effect was 88.7% and 95.1% after the first and second doses of the vaccine, respectively. The frequent side effects after the first dose were pain at the injection site (63.2%), fatigue (58.8%), fever (47.5%), muscle and joint pain (38.7%), and headache (36.3%). However, pain at the injection site (71.1%), muscle and joint pain (62.7%), headache (49.5%), fever (45.6%), and stress (33.3%) were frequent after the second dose. The average side-effects score was 4.41 ± 4.18 (median: 3, IQR: 1, 6) and 4.79 ± 3.54 (median 4, IQR: 2, 6) after the first and second dose, respectively. Female gender, diabetes mellitus, hypertension, hyperlipidemia, comorbidity > 2, family history of COVID-19, and the AstraZeneca vaccine were significantly associated with higher side-effect scores. Only 35.8% of study participants were satisfied with the safety of COVID-19 vaccines. Conclusions: Our analysis showed a high proportion of transient and short-lived side effects of Pfizer and AstraZeneca vaccines among individuals with chronic illnesses. However, the side-effects profile was comparable with the safety reports of phase 3 clinical trials of these vaccines. The frequency of side effects was found to be associated with certain demographics, necessitating the need for further investigations to establish a causal relationship. The current study's findings will help instill confidence in the COVID-19 vaccines among people living with chronic conditions, overcome vaccine hesitancy, and increase vaccine coverage in this population.


Assuntos
COVID-19 , Efeitos Colaterais e Reações Adversas Relacionados a Medicamentos , Humanos , Feminino , Vacinas contra COVID-19/efeitos adversos , Arábia Saudita/epidemiologia , Estudos Transversais , COVID-19/epidemiologia , COVID-19/prevenção & controle , Comorbidade , Dor , Cefaleia/induzido quimicamente , Cefaleia/epidemiologia , Artralgia
7.
Pak J Pharm Sci ; 35(4(Special)): 1229-1239, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36218102

RESUMO

Atherosclerotic patients suffering with acute coronary disease are lying at high risk. This life-threatening problem can be curtailed by using statins e.g., ezetimibe (EZT), atorvastatin calcium (ATC). In this study, co-loaded Fast Dissolving oral films (FDOFs), of ATC-EZT with HPMC E5 prepared by solvent evaporation method. Prepared FDOFs were evaluated for physicochemical, thermal and mechanical properties. In-vivo animal studies were performed on albino rats against diet induced hyperlipidemia. Prepared FDOFs have rapid DT; 27sec, TDT >2min and in-vitro drug release 97% in a min. In DSC, FTIR and XRD analysis, prepared films were chemically compatible and no chemical interaction of drugs and excipient was found. In kinetic modeling, it was observed their EZT exhibited lowest R2 value for zero order kinetic and best fit model was first order kinetic (n, 0.9823). The korsmeyer peppas model films (n, 0.016) indicate fickian type drug diffusion. The groups treated with marketed suspension of drug and FODPs were compared with normal group and high fats diet group. Study reviled that combination FDOPs of both ATC/EZT significantly reduce hyperlipemia as compared to high fat diet group. It can be concluded that ATC and EZT encapsulated in FODFs provide instant drug release and better therapeutic outcomes.


Assuntos
Inibidores de Hidroximetilglutaril-CoA Redutases , Hiperlipidemias , Animais , Atorvastatina , Excipientes/química , Ezetimiba/farmacologia , Inibidores de Hidroximetilglutaril-CoA Redutases/farmacologia , Inibidores de Hidroximetilglutaril-CoA Redutases/uso terapêutico , Hiperlipidemias/tratamento farmacológico , Solventes , Ratos
8.
J Oncol Pharm Pract ; 27(5): 1195-1204, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-34096401

RESUMO

Stupendous elevation in the healthcare costs has followed with the inception of the current unconventional options of treatment available for cancer patients. There is a dire need of innovative financing approaches to lessen the financial load on healthcare system. Biosimilars are biological drugs consisting of an active ingredient from a reference biological drug that has a great potential of relieving financial load. Strict requirements from regulatory point of view are required as biosimilars are exceedingly similar to but not identical to the reference product. This provides with a certainty that no consequential differences from clinical point of view as compared to the respective biologics exists with regards to efficacy, safety and purity. Safety and effectiveness of biosimilars have been disclosed since more than 10 years of affirmations. However, there is a need to educate the healthcare professionals to abolish potential misconceptions and coalesce biosimilars into regular clinical practice. The present review focuses on providing an overview of regulatory aspects and requirements for biosimilars, the main challenges in the selection and development of biosimilars and the economic impact and financial savings observed in recent studies carried out in different parts of the world. In addition, we have discussed the different successful comparative studies which have been done in different parts of the world to depict the biosimilarity for monoclonal antibodies such as bevacizumab, trastuzumab and rituximab.


Assuntos
Anticorpos Monoclonais/uso terapêutico , Medicamentos Biossimilares/uso terapêutico , Humanos , Oncologia
9.
Pak J Med Sci ; 37(2): 450-455, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33679930

RESUMO

OBJECTIVES: To quantify satisfaction among pharmacists working in pharmaceutical sales or marketing in Pakistan. METHODS: A cross-sectional study was conducted among pharmacists working in pharmaceutical sales and marketing during August to November, 2019. Satisfaction score of pharmacists was considered satisfied (Score > 2.5) and dissatisfied (Score < 2.5). The maximum and minimum satisfaction score was four and one for each question respectively. RESULTS: A total of 250 questionnaires were distributed and 200 were received back yielding a response rate of 80%. Male respondents dominated the cohort and were more satisfied (2.60 ± 0.47) as compared to females (2.31 ± 0.48) with majority were 18-30 years old and 78% had Pharm. D level of education (2.61 ± 0.47). The mean satisfaction score of participant is 2.51 with standard deviation of 0.49. The 53% of the respondents were dissatisfied with their salaries. The study dependent and independent variables are correlated with each other and significant results were seen between them. The factors associated with dissatisfaction are fear of losing job (2.19 ± 0.88), switch job (2.20 ± 0.77) and health condition (2.09 ± 0.89). Factors associated with satisfaction are positive attitude of doctor (2.91 ± 0.60), doctor consider respectful job holder (2.91 ± 0.61), enjoy work (3.01 ± 0.65), job by choice (3.12 ± 0.67) and progress in job (3.00 ± 0.74). CONCLUSIONS: It was concluded that the respondents were dissatisfied due to number of issues including disturbance in their personal life, lack of promotion and incentives among study participants.

10.
Pak J Pharm Sci ; 34(6(Supplementary)): 2357-2364, 2021 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-35039274

RESUMO

The current study was conducted to fabricate Metoclopramide HCL (MCH) and Sumatriptan succinate (SS) instant release buccal films (IRBF) without using any super disintegrant. The solvent casting method was used for the preparation of IRBFs and prepared IRBFs were physicochemically evaluated. Spectrophotometric analysis was done to determine the lambda max followed by the linearity determination of both drugs. Different concentrations such as 100, 125, and 150mg of hydrophilic polymer (HPMC E5) were employed but the concentration of glycerol was variable. Comparatively better results were observed for the formulation with 150mg of HPMC E5 and 30% glycerol. Formulated IRBFs showed good tensile strength with a mean disintegration time of 12.4-28.4 seconds and rapid dissolution with more than 50% drug release within 2 minutes. It was concluded that the chosen combination of polymers was appropriate for the fabrication of MCH and SS buccal strips.


Assuntos
Antagonistas dos Receptores de Dopamina D2/química , Glicerol/química , Derivados da Hipromelose/química , Metoclopramida/química , Agonistas do Receptor 5-HT1 de Serotonina/química , Sumatriptana/química , Administração Bucal , Antagonistas dos Receptores de Dopamina D2/administração & dosagem , Formas de Dosagem , Composição de Medicamentos , Liberação Controlada de Fármacos , Cinética , Metoclopramida/administração & dosagem , Agonistas do Receptor 5-HT1 de Serotonina/administração & dosagem , Solubilidade , Espectrofotometria Ultravioleta , Sumatriptana/administração & dosagem , Resistência à Tração
12.
PLoS One ; 19(3): e0300428, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38512913

RESUMO

INTRODUCTION: South Asian individuals possess a high risk of chronic kidney disease. There is a need to study, evaluate, and compare the newly suggested glomerular filtration rate (eGFR) equations for accurate CKD diagnosis, staging, and drug dosing. This study aimed to (1) evaluate the European Kidney Function Consortium (EKFC), Pakistani CKD-EPI, and 2021 Race-Free CKD-EPI creatinine equation in the South Asian population with CKD and (2) to examine the expected implications on both CKD classification as well as End Stage Renal Disease (ESRD) prevalence across these equations in South Asian population. METHODS: We carried out a cross-sectional investigation on 385 participants, a CKD cohort ≥ 18 years, at Allama Iqbal Medical College, Jinnah Hospital, Lahore. Serum creatinine was measured by Jaffe's method and rGFR was measured by inulin clearance. RESULTS: Pakistani CKD-EPI has a lower median difference at -1.33 ml/min/1.73m2 elevated precision (IQR) at 2.33 (-2.36, -0.03) and higher P30 value at 89.35% than 2021 CKD-EPI and EKFC equations. The mean difference (ml/min/1.73m2), 95% agreement limits (ml/min/1.73m2) of CKD-EPI PK: -1.18, -6.14, 2021 CKD-EPI: -5.98, -13.24 and EKFC: -5.62, -13.01 (P <0.001). These equations highly correlated to rGFR (P <0.001). An upward re-classification in GFR categories was shown by 2021 CKD-EPI and EKFC compared to the Pakistani CKD-EPI equation. However, there was an exception regarding the G5 category, where an elevated count of 217 (56.36%) was shown for CKD-EPI PK. The prevalence of ESRD was seen in entire age groups and prevailed among females more than in males overall equations. CONCLUSIONS: Pakistani CKD-EPI exhibited outstanding performance, while 2021 CKD-EPI and EKFC demonstrated poor performances and could not show an adequate advantage for both CKD classification and prevalence of ESRD compared to Pakistani CKD-EPI. Therefore, Pakistani CKD-EPI appears optimal for this region and warrants future validation in other South Asian countries. In contrast, suitable measures must be implemented in Pakistani laboratories.


Assuntos
Falência Renal Crônica , Insuficiência Renal Crônica , Masculino , Feminino , Humanos , Creatinina , Estudos Transversais , Paquistão/epidemiologia , Insuficiência Renal Crônica/diagnóstico , Insuficiência Renal Crônica/epidemiologia , Taxa de Filtração Glomerular
13.
ACS Omega ; 9(9): 10522-10538, 2024 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-38463337

RESUMO

Ticagrelor (TCG) is a BCS class IV antiplatelet drug used to prevent platelet aggregation in patients with acute coronary syndrome, having poor solubility and permeability. The goal of this study was to develop a self-nanoemulsifying drug delivery system (SNEDDS) of TCG to improve its solubility and permeability. The excipients were selected based on the maximum solubility of TCG and observed by UV spectrophotometer. Different combinations of oil, surfactant, and co-surfactant (1:1, 2:1, and 3:1) were used to prepare TCG-SNEDDS formulations, and pseudo-ternary phase diagrams were plotted. The nanoemulsion region was observed. Clove oil (10-20%), Tween-80 (45-70%), and PEG-400 (20-45%) were used as an oil, surfactant, and co-surfactant, respectively. The selected formulations (F1, F2, F3, F4, F5, and F6) were analyzed for ζ potential, polydispersity index (PDI), ζ size, self-emulsification test, cloud point determination, thermodynamic studies, entrapment efficiency, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), in vitro dissolution, ex vivo permeation, and pharmacodynamic study. The TCG-SNEDDS formulations exhibited ζ potential from -9.92 to -6.23 mV, a ζ average of 11.85-260.4 nm, and good PDI. The in vitro drug release in phosphate buffer pH 6.8 from selected TCG-SNEDDS F4 was about 98.45%, and F6 was about 97.86%, displaying improved dissolution of TCG in 0.1 N HCl and phosphate buffer pH 6.8, in comparison to 28.05% of pure TCG suspension after 12 h. While the in vitro drug release in 0.1 N HCl from F4 was about 62.03%, F6 was about 73.57%, which is higher than 10.35% of the pure TCG suspension. In ex vivo permeability studies, F4 also exhibited an improved apparent permeability of 2.7 × 10-6versus 0.6708 × 10-6 cm2/s of pure drug suspension. The pharmacodynamic study in rabbits demonstrated enhanced antiplatelet activity from TCG-SNEDDS F4 compared to that from pure TCG suspension. These outcomes imply that the TCG-SNEDDS may serve as an effective means of enhancing TCG's antiplatelet activity by improving the solubility and permeability of TCG.

14.
Curr Drug Saf ; 18(2): 122-124, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36883267

RESUMO

The Coronavirus disease (COVID-19) outbreak is marked by infodemic amid conspiracy theories, false claims, rumors, and misleading narratives, which have had a significant impact on the global campaign against COVID-19. The drug repurposing provides a hope to curb the growing encumbrance of the disease but at the same time, it poses various challenges such as selfmedication using repurposed drugs and its associated harms. During the continuing pandemic, this perspective piece explores the potential hazards of self-medication and its attributing factors along with possible countermeasures.


Assuntos
COVID-19 , Farmacovigilância , Humanos , Automedicação , Pessoal Administrativo
15.
Environ Sci Pollut Res Int ; 30(2): 2341-2354, 2023 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-36380176

RESUMO

Due to disparities in the allocation of rainwater and drought, extreme exploitation of groundwater reservoirs has depleted water supplies in many locations. In addition, improper disposal of domestic and industrial waste leads to poor drainage and deterioration of water quality. According to studies, desalination methods are an effective solution for treating unconventional water, i.e., sea and brackish water, and making it usable in daily life. Solar-powered desalination has recently received a great deal of attention around the world. Herein, we summarized challenges and future perspectives associated with solar-powered desalination units. Some hybrid technologies are also discussed like solar-wind desalination and RO-ED crystallizer technology in Morocco and the Middle East and North Africa (MENA) region. Previously, most experimental studies focused on the use of solar energy in traditional desalination methods such as multistage flash and multi-effect distillation. Desalination with reverse osmosis has become popular due to membrane technology improvement and benefits like high recovery ratios and low energy consumption. Furthermore, it has been seen that solar energy is less expensive than the energy obtained from traditional fuels in the MENA area. This article aims to comparatively and systematically review the economic feasibility of the use of solar photovoltaic reverse osmosis in desalination in the MENA region.


Assuntos
Energia Solar , Purificação da Água , Estudos de Viabilidade , Membranas Artificiais , Osmose , Purificação da Água/métodos
16.
Metabolites ; 13(2)2023 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-36837870

RESUMO

Myocardial infarction (MI) is a cardiovascular disease that occurs due to the blockage of the coronary artery. Subsequently, cardiac muscles receive a lower oxygen supply, which leads to the death of cardiac muscles. The etiology of MI is linked to various environmental, occupational, and genetic factors. Various studies have been conducted on the polymorphism of genes involved in MI. Previous studies have shown that different variants of the methylene tetrahydrofolate reductase (MTHFR) gene are involved in causing MI by altering the metabolism of folate and homocysteine. However, the genetic polymorphism of MTHFR C677T (rs1801133) and its association with MI in the presence of diabetes mellitus (DM) as a risk factor still needs to be investigated. This study recruited 300 participants who were divided into three groups, i.e., the control, MI, and MI-DM. The blood samples collected from the study participants were subjected to various biochemical tests and their clinical parameters were monitored. MTHFR C677T (rs1801133) genotyping was performed by Tetra ARMS PCR using predetermined primers. The MTHFR C677T (rs1801133) polymorphism was associated with MI in the presence of DM as a risk factor among the participants. The MTHFR C677T (rs1801133) T/T homozygous genotype was found to be significant among MI patients in the presence of DM as a risk factor.

17.
PLoS One ; 18(8): e0289502, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37540689

RESUMO

Obesity, hypertension (HTN) and type 2 diabetes (T2D) are among the multifactorial disorders that occur at higher prevalence in a population. This study aims to assess the health-related quality of life (HRQoL) of patients with obesity, HTN and T2D individually and in the form of multimorbidity. A questionnaire-based cross-sectional study was conducted among the patients in 15 private clinics of Punjab, Pakistan. A stratified random sampling technique was used to collect the data from patients with obesity, HTN and T2D or their comorbidity. A total of 1350 patients responded by completing the questionnaire. The HRQoL of these patients was assessed using the EQ-5D-5L questionnaire (a standardized instrument for measuring generic health status). Statistical analysis was performed using chi-square test, Mann-Whitney U test, and Kruskal-Wallis test. Multivariate linear regression model was used to model the visual analogue scale (VAS) score. In total, 15% of patients had combined obesity, HTN and T2D; 16.5% had HTN and T2D; 13.5% had obesity and HTN and 12.8% had obesity and T2D. Only 15.8% of patients had obesity, 14.3% had HTN, and 12% had T2D. Mann Whitney-U test gave the statistically significant (p = <0.001) HRQoL VAS score55.1 (±23.2) of patients with the obesity. HRQoL VAS scores of patients with obesity were found to be higher when compared to patients with both T2D 49.8 (±15.4) and HTN 48.2 (±21). Diagnosis of one, two and three diseases showed significant results in VAS with all variables including gender (p = 0.004), educational level (p = <0.001), marital status (p<0.001), residence (p = <0.001), financial situation (p = <0.001) and monthly income (p = <0.001). The most frequently observed extremely problematic dimension was anxiety/ depression (47%) and the self-care (10%) was the least affected. Patient HRQoL is decreased by T2D, HTN, and obesity. The impact of these diseases coexisting is more detrimental to HRQoL.


Assuntos
Diabetes Mellitus Tipo 2 , Hipertensão , Humanos , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/epidemiologia , Qualidade de Vida , Multimorbidade , Estudos Transversais , Hipertensão/epidemiologia , Hipertensão/complicações , Inquéritos e Questionários , Obesidade/complicações , Obesidade/epidemiologia
18.
Hum Vaccin Immunother ; 19(2): 2225990, 2023 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-37350298

RESUMO

Vaccine hesitancy (VH) is not a new phenomenon in Pakistan and is regarded as one of the primary causes of unsatisfactory vaccination campaigns. This study determined post-vaccination COVID-19 VH, factors influencing COVID-19 vaccine uptake, and public's intent to receive booster vaccinations. A cross-sectional study was conducted among adult population of Lahore, Pakistan. Participants were recruited via convenience sampling between March and May 2022. SPSS version 22 was used for the data analysis. A total of 650 participants were included in the study (age = 28.1 ± 9.7 years; male-to-female ratio nearly 1: 1). The majority of participants received Sinopharm followed by Sinovac vaccine. The top three reasons of vaccine uptake were "only vaccinated individuals are allowed at the workplace, and educational institutes" (Relative importance index (RII) = 0.749), "only vaccinated people are allowed to go to markets, malls and other public places" (RII = 0.746), and "protect myself from the infection" (RII = 0.742). The mean COVID-19 VH score was 24.5 ± 6.2 (95% CI 23.9-24.9), with not being pro-vaccines and poor economic status were the significant predictors of COVID-19 vaccine hesitancy among immunized individuals (p < .05). Acceptance of booster vaccines was negatively associated with younger age and a lower level of education. Furthermore, being pro-vaccine was associated with a greater likelihood of accepting booster vaccines (p = .001). The Pakistani public continues to express VH toward COVID-19 vaccines. Therefore, aggressive measures must be taken to combat the community factors that contribute to it.


Assuntos
COVID-19 , Vacinas , Adulto , Feminino , Masculino , Humanos , Adolescente , Adulto Jovem , Vacinas contra COVID-19 , Estudos Transversais , Intenção , COVID-19/prevenção & controle , Vacinação
19.
Vaccines (Basel) ; 10(12)2022 Dec 07.
Artigo em Inglês | MEDLINE | ID: mdl-36560503

RESUMO

Introduction: The vaccination of children against Coronavirus disease (COVID-19) is a prime area of focus around the globe and is considered a pivotal challenge during the ongoing pandemic. This study aimed to assess parents' intentions to vaccinate their children and the barriers related to pediatric COVID-19 vaccination. Methodology: An online web-based survey was conducted to recruit parents with at least one child under the age of 12 years from Saudi Arabia's Al-Jouf region. The parental intentions to vaccinate children were assessed via six items, while barriers against vaccination were assessed through seven items in validated study instrument. A 5-point Likert scale was used to record the responses of parents regarding both their intentions and barriers. Results: In total, 444 parents (28.41 ± 7.4 years, 65% females) participated in this study. Almost 90% of parents were vaccinated against COVID-19 but only 42% of parents intended to vaccinate their children. The mean intention score was 2.9 ± 1.36. More than one-third of study participants had no plan to vaccinate their children against COVID-19. The majority of the respondents agreed to vaccinate their children if vaccination was made compulsory by the government (relative index: 0.76, 73%). Out of seven potential barriers analyzed, concerns over vaccine safety and side effects were ranked highest (RII: 0.754), reported by 290 (65%) participants. In multivariate logistic regression, significant predictors of parental intention to vaccinate children were the increased education level of the parents (secondary education: OR = 3.617, p = 0.010; tertiary education: OR = 2.775, p = 0.042), COVID-19 vaccination status (vaccinated: OR = 7.062, p = 0.003), mother's involvement in decisions regarding the child's healthcare (mother: OR 4.353, p < 0.001; both father and mother: OR 3.195, p < 0.001) and parents' trust in the vaccine's safety (OR = 2.483, p = 0.022). Conclusions: This study underscored the low intention among parents to vaccinate their children against COVID-19. Vaccination intention was found to be associated with education, parents' vaccination status, the mother's involvement in healthcare decisions, and parents' trust in the vaccine's safety. On the other hand, parents' concerns over the safety and efficacy of the COVID-19 vaccine were widely reported as barriers to childhood vaccination. The health authorities should focus on addressing parental concerns about vaccines to improve their COVID-19 vaccination coverage.

20.
Pharmaceuticals (Basel) ; 15(3)2022 Mar 08.
Artigo em Inglês | MEDLINE | ID: mdl-35337124

RESUMO

The symptoms of some diseases show circadian rhythms, such as the morning stiffness associated with pain at the time of awakening in rheumatoid arthritis. Therapy for such diseases doesn't require immediate release or sustained release of medicament. In such therapies, pulsatile drug release is more suitable with a programmed drug release. The purpose of this research was to formulate press-coated aceclofenac tablets for pulsatile drug delivery with a distinct delay time of no drug release and release of the drug when it is more likely desired (i.e., after 5 to 6 h). Immediate release core tablets having aceclofenac were formulated. Three formulations, F1, F2, and F3, were prepared with variable concentrations of sodium croscarmellose. Pre- and post-compression tests were performed on the core tablets. The selection criteria included the lowest disintegration time as a requirement of pulsatile drug delivery with an immediate release core and a delayed release coat. The disintegration times of F1, F2, and F3 were 120 s, 60 s, and 15 s, respectively. Therefore, the F3 formulation was selected as the core tablet formulation because it had the shortest disintegration time (15 s). The core tablets were press-coated using different polymers, such as HPMC K100M, Eudragit L100, HEC, and HPMC E5. The polymers were used in the coatings to hinder the release of the core for the desired time. 36 formulations of polymer were prepared: A1 to A10 had HPMC K100M and Avicel PH102; formulations B1 to B6 had HPMC K100M, Eudragit L100, and Avicel PH102; formulations C1 to C7 had HPMC K100M and hydroxyethyl cellulose; formulations D1 to D7 had HPMC K100M and HPMC E5; and formulations E1 to E6 had changed the coating weight of the formulation used for D6 (having HPMC K100M and HPMC E5 in the ratio of 12.5% to 87.5%). Evaluations of the press-coated tablets were carried out through thickness, hardness, weight variation, friability, and in vitro dissolution tests. These parameters concluded that the formulation of E6, having HPMC K100M and HPMC E5 in the ratio of 12.5% to 87.5% at 600 mg weight, was the most optimum formulation as it showed 3.5% drug release after 4 h, 21.4% drug release after 5 h, and 99.27% drug release after 6 h.

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