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1.
Int J Geriatr Psychiatry ; 39(6): e6104, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38877354

RESUMO

The central nervous system (CNS) is widely recognized as the only organ system without lymphatic capillaries to promote the removal of interstitial metabolic by-products. Thus, the newly identified glymphatic system which provides a pseudolymphatic activity in the nervous system has been focus of latest research in neurosciences. Also, findings reported that, sleep stimulates the elimination actions of glymphatic system and is linked to normal brain homeostatis. The CNS is cleared of potentially hazardous compounds via the glymphatic system, particularly during sleep. Any age-related alterations in brain functioning and pathophysiology of various neurodegenerative illnesses indicates the disturbance of the brain's glymphatic system. In this context, ß-amyloid as well as tau leaves the CNS through the glymphatic system, it's functioning and CSF discharge markedly altered in elderly brains as per many findings. Thus, glymphatic failure may have a potential mechanism which may be therapeutically targetable in several neurodegenerative and age-associated cognitive diseases. Therefore, there is an urge to focus for more research into the connection among glymphatic system and several potential brain related diseases. Here, in our current review paper, we reviewed current research on the glymphatic system's involvement in a number of prevalent neurodegenerative and neuropsychiatric diseases and, we also discussed several therapeutic approaches, diet and life style modifications which might be used to acquire a more thorough performance and purpose of the glymphatic system to decipher novel prospects for clinical applicability for the management of these diseases.


Assuntos
Sistema Glinfático , Doenças Neurodegenerativas , Humanos , Sistema Glinfático/fisiopatologia , Sistema Glinfático/fisiologia , Doenças Neurodegenerativas/fisiopatologia , Doenças Neurodegenerativas/metabolismo , Encéfalo/fisiopatologia , Encéfalo/metabolismo , Peptídeos beta-Amiloides/metabolismo
2.
Semin Cancer Biol ; 86(Pt 2): 886-908, 2022 11.
Artigo em Inglês | MEDLINE | ID: mdl-35143992

RESUMO

Cancer is one of the biggest causes of mortality in the world. The advances in cancer research have taken us to distance in understanding the disease, which helps develop therapeutic strategies. Surgery and chemotherapy are the two main chosen routes of combat for cancer. These chemotherapeutic agents are good at targeting cancer, but many lack the specificity to make the distinction between healthy cells. Also, the toxicity of these chemotherapeutic agents is very high. This gap makes it quintessential to either look for better and safe agents or makes it possible for existing agents to meet these needs. Nanotechnology has the potential to deal with these unmet needs. Nanotechnology has been a hot topic recently due to its applications, one of these being nanomedicine. Studies have proven that cancer nanomedicine has a scope of being revolutionary. With the help of nanoparticles, we can make drugs specific for the cancer tissue; it can also help in increasing the bioavailability of the drug. A nanoparticle can be modified as such that it can carry the drug load that is required and deliver it to the specific target. In this review article, we have discussed the advances in nanomedicine and the current clinical status of various nanomedicines. We have extensively explored various strategies used to develop cancer nanomedicine while also discussing their mechanism of action.


Assuntos
Antineoplásicos , Neoplasias , Humanos , Sistemas de Liberação de Medicamentos , Nanomedicina , Neoplasias/tratamento farmacológico , Nanotecnologia , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Inflamação/tratamento farmacológico
3.
Molecules ; 27(5)2022 Feb 22.
Artigo em Inglês | MEDLINE | ID: mdl-35268579

RESUMO

Physalis angulata L. belongs to the family Solanaceae and is distributed throughout the tropical and subtropical regions. Physalis angulata leaf and fruit extracts were assessed for in vitro anticancer, antioxidant activity, and total phenolic and flavonoid content. The GC-MS technique investigated the chemical composition and structure of bioactive chemicals reported in extracts. The anticancer activity results revealed a decrease in the percentage of anticancer cells' viability in a concentration- and time-dependent way. We also noticed morphological alterations in the cells, which we believe are related to Physalis angulata extracts. Under light microscopy, we observed that as the concentration of ethanolic extract (fruit and leaves) treated HeLa cells increased, the number of cells began to decrease.


Assuntos
Physalis
4.
Medicina (Kaunas) ; 59(1)2022 Dec 27.
Artigo em Inglês | MEDLINE | ID: mdl-36676676

RESUMO

Background and Objectives: In Saudi Arabia, Acne vulgaris is a very predominant ailment among adolescents, especially female university students, and self-medication has become a trend to manage this condition. To determine the prevalence of Acne vulgaris among health care students and to access the scenario of its self-medication in light of students' knowledge, attitude, and practice towards it. Materials and Methods: This was an observational study conducted at King Saud University, Riyadh, Kingdom of Saudi Arabia, from January 2022 to March 2022. The study was undertaken using a pre-structured questionnaire. Results: A total of 550 university students were recruited and the incidence of acne was observed to be 78.5% (432 out of 550) with a female predominance. A total of 56.0% (244 of 432) students used self-medications for acne without a prescription and the most used prescription drugs were topical and oral antibiotics (38.1%), followed by Isotretinoin (22.55), and topical adaplene (20.9%). Female students (n = 181, 63.5%) were significantly more likely to self-medicate compared to male students (n = 63, 42.9%, p ≤ 0.001). Almost 60% of medical students had proper knowledge of medication for acne. Conclusion: Acne vulgaris is a highly prevalent condition among university students of Saudi Arabia and use of self-medication among acne sufferers is high. Education programs should be made to raise awareness about acne and its treatment.


Assuntos
Acne Vulgar , Estudantes de Medicina , Adolescente , Humanos , Masculino , Feminino , Arábia Saudita/epidemiologia , Universidades , Prevalência , Acne Vulgar/tratamento farmacológico , Acne Vulgar/epidemiologia
5.
Saudi Pharm J ; 29(10): 1155-1165, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34703369

RESUMO

BACKGROUND: Clinical trials are crucial in contemporary evidence-based medicine for discovering new treatments for diseases. Their registration in a registry increases the transparency in the dissemination of knowledge about clinical research. It is essential to understand the activity of clinical trials in a country, thus identifying research gaps. OBJECTIVE: This study, therefore, aims to describe the clinical trial activity since the inception of clinical trials' administration and national clinical trials' registry within the Kingdom of Saudi Arabia (KSA). METHOD: A descriptive study was conducted by reviewing all clinical studies that have been registered during 2009 and June 2020. The inclusion criterion was all phases of the clinical trials registered in the national registry during that period. Data analysis was done using descriptive statistics. RESULTS: Since 2009, 352 studies have been registered. However, a total of 333 studies with complete data was included in the analysis. A total of 80 sponsors funded the clinical studies in the KSA. The majority of the clinical studies are funded by multinational pharmaceutical companies. Oncology (13.81%) and diabetes (11.71%) were the most common therapeutic areas and constituted the largest proportion of the overall studies. 44% were phase 4 and 40% were phase 3 studies. CONCLUSION: With a population approaching 34 million, the number of clinical trials in the KSA is not sufficient. Since the inception of the clinical trial's administration and SCTR, the emphasis has been on phase 3 and phase 4 clinical studies. The most studied therapeutic areas were oncology and diabetes. Many clinical studies in the KSA were sponsored by multinational pharmaceutical companies.

6.
Saudi Pharm J ; 28(4): 440-444, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32273802

RESUMO

Consumption of Cytochrome P450 2D6 (CYP2D6) inhibiting drugs along with tamoxifen treatment results in decrease in plasma concentration of endoxifen, the major active tamoxifen metabolite. Simultaneous use of CYP2D6 inhibitors, such as selective serotonin reuptake inhibitors (SSIs), as well as lesser tamoxifen adherence may negatively impact tamoxifen efficacy in patients with breast cancer. The objective of our study was to assess the co-prescription of CYP2D6 inhibitors and tamoxifen use and also to relate concomitant CYP2D6 inhibitor use and tamoxifen adherence to breast cancer in Riyadh, Saudi Arabia. All patients treated for breast cancer who had at least one tamoxifen prescription in their electronic medical records (EMRs) from June 2015 to June 2017 were included. Patients who had other adjuvant hormonal therapy were excluded from the study. In total, 499 patients (25 males and 474 females) with breast cancer using tamoxifen were included. Our study was purely observational study revealed that prescription of weak inhibitors with tamoxifen increased in the second year as opposed to decrease in the prescription of strong inhibitors. Also, a substantial percentage of patient population were found to be non-adherent to the tamoxifen therapy in this study.

7.
Saudi Pharm J ; 28(1): 107-115, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31920437

RESUMO

BACKGROUND: The need for graduate education in Pharmaceutical Outcomes and Policy Research (POPR) is becoming increasingly apparent worldwide. However, the number of professionals in this field is inadequate in the Middle East. Therefore, this study aimed at gaining insight into the perceived value of a potential Doctor of Philosophy (Ph.D.) program in POPR among different stakeholders in Saudi Arabia. METHODS: Following the development of a Ph.D. program structure in POPR, a questionnaire was created to explore the perception of its value among decision-makers in different healthcare and governmental institutions. An email with detailed information on the proposed program was sent to 131 identified individuals along with an online link to the questionnaire. RESULTS: Responses were provided by 107 (81.67%) individuals. The majority of respondents (53.3%) represented large organizations with more than 500 workers; hospitals and academia were the most represented types of institutions. More than 85% of the participants strongly agreed that the program will meet the needs of the healthcare market in Saudi Arabia and that there will be a demand for graduates of the program over the next 5-10 years. However, only 28.04% of the participants declared that they would definitely recommend the program to their colleagues and employees, and 49.53% would consider employing its graduates. CONCLUSIONS: The obtained results indicate a significant interest among different stakeholders in introducing a Ph.D. program in POPR in Saudi Arabia.

8.
Saudi Pharm J ; 27(7): 1044-1052, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-31997912

RESUMO

BACKGROUND: In recent years, organizations around the globe have begun measuring the engagement level of employees in order to improve productivity and profitability. Employee engagement has the potential to significantly affect employee retention and loyalty. OBJECTIVE: To explore pharmacists' perceptions of the organizational support and impact of resilience and perceived organizational support on employee engagement in a stressful and competitive work environment. METHODS: We carried out a cross-sectional survey of 81 pharmacists, who were selected as a random sample in Saudi Arabia. Those pharmacists were assigned in highly competitive jobs within organizations such as pharmaceutical companies, hospitals and pharmaceutical distributors. We used the Utrecht Work Engagement Scale (UWES), the Brief Resilience Scale (BRS), and the Perceived Organizational Support Scale (POS) to collect the data, which then was analyzed using the descriptive and analytical tests and multiple logistic regressions in IBM® SPSS® version 24.0. RESULTS: Eighty one out of 100 surveys were collected back with responses-the response rate was 81% (n = 81). We obtained moderate levels of perceived organizational support and resilience; means were 4.6 ±â€¯0.8 and 3.2 ±â€¯0.45, respectively. Demographic variables, resilience, and perceived organizational support predicted were approximately 29.2%, 29.6%, and 36.2%, respectively, of the variance in employee engagement. We also found a significant correlation between the pharmacists' perceptions of organizational support and their engagement (ß = 0.31, p < 0.05), but no statistically significant relationship between resilience and employee engagement. CONCLUSIONS: This study showed how pharmacists' perceptions of organizational support are related to their engagement in the workplace, demonstrating a significant relationship between perceived organizational support and employee engagement.

9.
Saudi Pharm J ; 27(6): 859-865, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31516328

RESUMO

BACKGROUND: Multiple scales in different languages were developed to measure patient-reported side effects of antineoplastics. However, these scales vary in their coverage of antineoplastics' side effects, and none of them address both the severity and impact of antineoplastics' side effects on patient quality of life. Hence, there is a need to develop a comprehensive, concise, and general scale to assess patients' perceptions of both severity and impact of the commonly reported side effects of antineoplastics on patients' activities of daily living and make it available in Arabic. OBJECTIVES: To develop and validate a new scale in Arabic to assess patient-reported antineoplastics' side-effects among Arabic-speaking patients undergoing chemotherapy. METHODS: A new scale was developed in Arabic that addresses 40 different emotional, cognitive, and physical side-effects of antineoplastics. The Antineoplastic Side effects Scale (ASES) contained three subscales focused on the side effects frequency, severity, and interference with patients' activities of daily living. Seventy-eight patients with different cancer types were recruited from the oncology clinics of a university-affiliated tertiary care hospital in Riyadh, Saudi Arabia. The reliability of the questionnaire was examined using Cronbach's alpha method. The construct validity was examined using principal component analysis with varimax rotation. The association between the scores of ASES subscales and various patient medical and sociodemographic characteristics were also examined. RESULTS: The mean age of participants was 53.8 (12.5) years and most of them were female (65.3%) and married (84.6%). The ASES demonstrated good internal consistency (Cronbach's alpha = 0.91). The severity of the perceived side effects and their impact on activities of daily living were positively associated with female gender. CONCLUSION: The newly developed ASES demonstrated good validity and reliability. This tool will hopefully help healthcare providers and patients to identify commonly reported antineoplastic side effects.

10.
Brief Funct Genomics ; 22(2): 76-96, 2023 04 13.
Artigo em Inglês | MEDLINE | ID: mdl-35809340

RESUMO

Medical research has been revolutionized after the publication of the full human genome. This was the major landmark that paved the way for understanding the biological functions of different macro and micro molecules. With the advent of different high-throughput technologies, biomedical research was further revolutionized. These technologies constitute genomics, transcriptomics, proteomics, metabolomics, etc. Collectively, these high-throughputs are referred to as multi-omics technologies. In the biomedical field, these omics technologies act as efficient and effective tools for disease diagnosis, management, monitoring, treatment and discovery of certain novel disease biomarkers. Genotyping arrays and other transcriptomic studies have helped us to elucidate the gene expression patterns in different biological states, i.e. healthy and diseased states. Further omics technologies such as proteomics and metabolomics have an important role in predicting the role of different biological molecules in an organism. It is because of these high throughput omics technologies that we have been able to fully understand the role of different genes, proteins, metabolites and biological pathways in a diseased condition. To understand a complex biological process, it is important to apply an integrative approach that analyses the multi-omics data in order to highlight the possible interrelationships of the involved biomolecules and their functions. Furthermore, these omics technologies offer an important opportunity to understand the information that underlies disease. In the current review, we will discuss the importance of omics technologies as promising tools to understand the role of different biomolecules in diseases such as cancer, cardiovascular diseases, neurodegenerative diseases and diabetes.


Assuntos
Pesquisa Biomédica , Multiômica , Humanos , Genômica , Proteômica , Metabolômica , Biomarcadores
11.
Neurosci Biobehav Rev ; 144: 104961, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36395982

RESUMO

Neurodegenerative diseases (NDs) such as Alzheimer disease (AD), Parkinson disease (PD), and Huntington disease (HD) represent a major socio-economic challenge in view of their high prevalence yet poor treatment outcomes affecting quality of life. The major challenge in drug development for these NDs is insufficient clarity about the mechanisms involved in pathogenesis and pathophysiology. Mitochondrial dysfunction, oxidative stress and inflammation are common pathways that are linked to neuronal abnormalities and initiation of these diseases. Thus, elucidating the shared initial molecular and cellular mechanisms is crucial for recognizing novel remedial targets, and developing therapeutics to impede or stop disease progression. In this context, use of multifunctional compounds at early stages of disease development unclogs new avenues as it acts on act on multiple targets in comparison to single target concept. In this review, we summarize overview of the major findings and advancements in recent years focusing on shared mechanisms for better understanding might become beneficial in searching more potent pharmacological interventions thereby reducing the onset or severity of various NDs.


Assuntos
Doenças Neurodegenerativas , Humanos , Doenças Neurodegenerativas/metabolismo , Doenças Neuroinflamatórias , Qualidade de Vida , Estresse Oxidativo , Mitocôndrias/metabolismo
12.
J Biomol Struct Dyn ; 41(18): 9072-9088, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36326281

RESUMO

COVID-19 has infected millions and significantly affected the global economy and healthcare systems. Despite continuous lockdowns, symptomatic management with currently available medications, and numerous vaccination drives, it is still far more difficult to control. Against COVID-19 infection, the pressure to develop vaccines and drugs has led to using some currently available medications like remdesivir, azithromycin, hydroxychloroquine and ritonavir. Understanding the importance and potential of harmless molecules to tackle SARS-COV-2, we designed the present study to identify potential natural phytocompounds. In the present study, we docked natural compounds and standard drugs against SARS-COV-2 proteins: papain-like protease, main protease and helicase. ADME/T and ProTox-II analyses were used to determine the toxicity of phytocompounds and drugs. The docking analysis revealed that podophyllotoxin gave the highest binding affinity scores of -8.1, -7.1 and -7.4 kcal/mol against PLpro, Mpro and helicase, respectively. Among the control drugs, doxycycline hydrochloride showed the highest binding affinity of -10.5, -8.4 and -8.8 kcal/mol against PLpro, Mpro and helicase. The results of this study revealed that podophyllotoxin and doxycycline hydrochloride could be promising inhibitors against SARS-Cov-2. Molecular dynamic simulations were executed for the best docked (PLpro-podophyllotoxin) complex, and the results displayed stable conformation and convergence. Energy plot results predicted a global minima average energy of -95 kcal/mol and indicated podophyllotoxin's role in stabilizing protein and making it compact and complex. FarPPI server used MM/GBSA approach to determine free binding affinity, and helicase-gallic acid complex showed the highest affinity, respectively. Therefore, it can be concluded that there is still a need for in vitro and in vivo studies to support further and validate these findings and validate these findings.Communicated by Ramaswamy H. Sarma.

13.
Eur J Pharmacol ; 947: 175678, 2023 May 15.
Artigo em Inglês | MEDLINE | ID: mdl-36990262

RESUMO

Transforming growth factor-ß (TGFß) is a pleiotropic secretory cytokine exhibiting both cancer-inhibitory and promoting properties. It transmits its signals via Suppressor of Mother against Decapentaplegic (SMAD) and non-SMAD pathways and regulates cell proliferation, differentiation, invasion, migration, and apoptosis. In non-cancer and early-stage cancer cells, TGFß signaling suppresses cancer progression via inducing apoptosis, cell cycle arrest, or anti-proliferation, and promoting cell differentiation. On the other hand, TGFß may also act as an oncogene in advanced stages of tumors, wherein it develops immune-suppressive tumor microenvironments and induces the proliferation of cancer cells, invasion, angiogenesis, tumorigenesis, and metastasis. Higher TGFß expression leads to the instigation and development of cancer. Therefore, suppressing TGFß signals may present a potential treatment option for inhibiting tumorigenesis and metastasis. Different inhibitory molecules, including ligand traps, anti-sense oligo-nucleotides, small molecule receptor-kinase inhibitors, small molecule inhibitors, and vaccines, have been developed and clinically trialed for blocking the TGFß signaling pathway. These molecules are not pro-oncogenic response-specific but block all signaling effects induced by TGFß. Nonetheless, targeting the activation of TGFß signaling with maximized specificity and minimized toxicity can enhance the efficacy of therapeutic approaches against this signaling pathway. The molecules that are used to target TGFß are non-cytotoxic to cancer cells but designed to curtail the over-activation of invasion and metastasis driving TGFß signaling in stromal and cancer cells. Here, we discussed the critical role of TGFß in tumorigenesis, and metastasis, as well as the outcome and the promising achievement of TGFß inhibitory molecules in the treatment of cancer.


Assuntos
Neoplasias , Humanos , Neoplasias/tratamento farmacológico , Fator de Crescimento Transformador beta/metabolismo , Transdução de Sinais , Diferenciação Celular , Carcinogênese , Microambiente Tumoral
14.
Biomedicines ; 11(2)2023 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-36830872

RESUMO

This decade has seen the beginning of ground-breaking conceptual shifts in the research of Alzheimer's disease (AD), which acknowledges risk elements and the evolving wide spectrum of complicated underlying pathophysiology among the range of diverse neurodegenerative diseases. Significant improvements in diagnosis, treatments, and mitigation of AD are likely to result from the development and application of a comprehensive approach to precision medicine (PM), as is the case with several other diseases. This strategy will probably be based on the achievements made in more sophisticated research areas, including cancer. PM will require the direct integration of neurology, neuroscience, and psychiatry into a paradigm of the healthcare field that turns away from the isolated method. PM is biomarker-guided treatment at a systems level that incorporates findings of the thorough pathophysiology of neurodegenerative disorders as well as methodological developments. Comprehensive examination and categorization of interrelated and convergent disease processes, an explanation of the genomic and epigenetic drivers, a description of the spatial and temporal paths of natural history, biological markers, and risk markers, as well as aspects about the regulation, and the ethical, governmental, and sociocultural repercussions of findings at a subclinical level all require clarification and realistic execution. Advances toward a comprehensive systems-based approach to PM may finally usher in a new era of scientific and technical achievement that will help to end the complications of AD.

15.
Curr Med Chem ; 2023 Aug 09.
Artigo em Inglês | MEDLINE | ID: mdl-37559247

RESUMO

Despite substantial advancements in curative modern medicine in the last few decades, cancer risk and casualty rates have continued to mount globally. The exact reason for cancer's onset and progression is still unknown. However, skeletal and functional abnormalities in the genetic code are assumed to be the primary cause of cancer. Many lines of evidences reported that some medicinal plants can be utilized to curb cancer cell proliferation with a safe, fruitful, and cost-efficient perspective. Curcuminoids, isolated from Curcuma longa, have gotten a lot of focus due to their anticancer potential as they reduce tumor progression, invasion, and dissemination. Further, they modulated signal transduction routes like MAPK, PI3K/Akt/mTOR, JAK/STAT, and Wnt/ß-catenin, etc., and triggered apoptosis as well as actuated autophagy in malignant cells without altering the normal cells, thus preventing cancer progression. Besides, Curcuminoids also regulate the function and expression of anti-tumor and carcinogenic miRNAs. Clinical studies also reported the therapeutic effect of Curcuminoids against various cancer through decreasing specific biomarkers like TNF-α, Bcl-2, COX-2, PGE2, VEGF, IκKß, and various cytokines like IL-12p70, IL-10, IL-2, IFN-γ levels and increasing in p53 and Bax levels. Thus, in the present review, we abridged the modulation of several signal transduction routes by Curcuminoids in various malignancies, and its modulatory role in the initiation of tumor-suppressive miRNAs and suppression of the oncogenic miRNAs are explored. Additionally, various pharmacokinetic approaches have been projected to address the Curcuminoids bioavailability like the use of piperine as an adjuvant; nanotechnology-based Curcuminoids preparations utilizing Curcuminoids analogues are also discussed.

16.
Curr Neuropharmacol ; 21(5): 1042-1064, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36411568

RESUMO

Autism is a neurodevelopmental disorder with a complex etiology that might involve environmental and genetic variables. Recently, some epidemiological studies conducted in various parts of the world have estimated a significant increase in the prevalence of autism, with 1 in every 59 children having some degree of autism. Since autism has been associated with other clinical abnormalities, there is every possibility that a sub-cellular component may be involved in the progression of autism. The organelle remains a focus based on mitochondria's functionality and metabolic role in cells. Furthermore, the mitochondrial genome is inherited maternally and has its DNA and organelle that remain actively involved during embryonic development; these characteristics have linked mitochondrial dysfunction to autism. Although rapid stride has been made in autism research, there are limited studies that have made particular emphasis on mitochondrial dysfunction and autism. Accumulating evidence from studies conducted at cellular and sub-cellular levels has indicated that mitochondrial dysfunction's role in autism is more than expected. The present review has attempted to describe the risk factors of autism, the role of mitochondria in the progression of the disease, oxidative damage as a trigger point to initiate mitochondrial damage, genetic determinants of the disease, possible pathogenic pathways and therapeutic regimen in vogue and the developmental stage. Furthermore, in the present review, an attempt has been made to include the novel therapeutic regimens under investigation at different clinical trial stages and their potential possibility to emerge as promising drugs against ASD.


Assuntos
Transtorno do Espectro Autista , Transtorno Autístico , Doenças do Sistema Nervoso , Criança , Humanos , Transtorno do Espectro Autista/tratamento farmacológico , Mitocôndrias/metabolismo , Doenças do Sistema Nervoso/metabolismo , Estresse Oxidativo
17.
Curr Top Med Chem ; 23(1): 44-61, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-35984019

RESUMO

The application of nanoparticles in medication delivery has revolutionized the field of therapeutic biology. To improve medical efficacy, currently, drug nanocarriers are employed to control the release and stability, expand its circulation time, or protect it from cell clearance or premature breakdown. A crosslinked polymeric framework is used to crosslink the hydrogel nanoparticle dispersions for safer and stable delivery on target sites. Nanogels have developed in the last two decades as potential biomaterials with a wide variety of applications. Later attributes of nanogels are mainly due to large surface areas, retention of molecules, size flexibility, and water-based formulations that have made them popular as drug delivery vehicles, as seen by several in vivo uses. The gel matrix containing the nanoparticle drug demonstrated a considerable increase in drug penetration in transdermal drug and topical delivery methods. This review aims to understand why and how nanogels are considered so innovative as a drug delivery method. It also examines their preparation methods and applications in the pharmaceutical and biomedical fields and discusses the benefits of nanogels, including swelling capacity and stimulus stimuli sensitivity. Nanogels, on the other hand, have recently been investigated for applications outside the field of biomedicine. Since there are many possible uses for nanogels, we have comprehensively reviewed the current state of the art for all feasible nanogel applications and manufacturing methods.


Assuntos
Sistemas de Liberação de Medicamentos , Polietilenoglicóis , Nanogéis , Administração Cutânea , Preparações Farmacêuticas , Portadores de Fármacos
18.
Med Oncol ; 40(10): 282, 2023 Aug 28.
Artigo em Inglês | MEDLINE | ID: mdl-37639075

RESUMO

Colorectal cancer (CRC) is the third highest frequent malignancy and ultimate critical source of cancer-associated mortality around the world. Regardless of latest advances in molecular and surgical targeted medicines that have increased remedial effects in CRC patients, the 5-year mortality rate for CRC patients remains dismally low. Evidence suggests that microRNAs (miRNAs) execute an essential part in the development and spread of CRC. The miRNAs are a type of short non-coding RNA that exhibited to control the appearance of tumor suppressor genes and oncogenes. miRNA expression profiling is already being utilized in clinical practice as analytical and prognostic biomarkers to evaluate cancer patients' tumor genesis, advancement, and counteraction to drugs. By modulating their target genes, dysregulated miRNAs are linked to malignant characteristics (e.g., improved proliferative and invasive capabilities, cell cycle aberration, evasion of apoptosis, and promotion of angiogenesis). This review presents an updated summary of circulatory miRNAs, tumor-suppressive and oncogenic miRNAs, and the potential reasons for dysregulated miRNAs in CRC. Further we will explore the critical role of miRNAs in CRC drug resistance.


Assuntos
Neoplasias do Colo , MicroRNAs , Neoplasias Retais , Humanos , MicroRNAs/genética , Neoplasias do Colo/genética , Apoptose , Ciclo Celular
19.
Genes (Basel) ; 13(2)2022 01 29.
Artigo em Inglês | MEDLINE | ID: mdl-35205314

RESUMO

Pharmacists are considered among the most accessible healthcare workers in fundamental positions to implement new clinical initiatives, such as pharmacogenomics services. The scope of pharmacogenomics in improving health outcomes and the quality of health care is well-known. Implementation of such initiatives requires adequate knowledge, perception, and positive attitudes among pharmacists. A study was conducted on pharmacy students at King Saud University in Riyadh to analyze their attitudes, knowledge, and perceptions concerning pharmacogenomics to explore the feasibility of establishing full-time pharmacogenomics instruction and services. A cross-sectional study was carried out in one of the significant pharmacy schools of Saudi Arabia, using a simple questionnaire-based survey in pharmacy students pursuing Bpharm and PharmD courses to obtain preliminary information about pharmacogenomics among the surveyed population. The study's secondary objective was to determine the perceived belief about pharmacogenomics implementation in clinical practice. Out of the total of 552 participants, 41.8% correctly defined pharmacogenomics and 81.3% understood that genetic change could lead to adverse reactions. More than half of the participants agreed that the FDA recommends pharmacogenomics testing for certain drugs. The knowledge about a year of use of pharmacogenomics in clinical practice was found to be very low; only 15.2% could correctly answer. Only 60% of students agreed on pharmacogenomics testing for selecting the therapy with the most negligible adverse effects. Due to the limited knowledge about and understanding of pharmacogenomics, there is a lack of interest among pharmacy students in implementing pharmacogenomics testing in clinical practice. Our study highlights the need for improving pharmacy students' knowledge about pharmacogenomics and pharmacogenetics so that the implementation of pharmacogenomics testing in clinical practice will become easier. There is a need to introduce an up-to-date curriculum for pharmacy courses other pharmacogenomics-based health education programs in Saudi Arabia.


Assuntos
Educação em Farmácia , Estudantes de Farmácia , Estudos Transversais , Conhecimentos, Atitudes e Prática em Saúde , Humanos , Percepção , Farmacogenética , Universidades
20.
ACS Omega ; 7(5): 4514-4524, 2022 Feb 08.
Artigo em Inglês | MEDLINE | ID: mdl-35155943

RESUMO

5-Fluorouracil (5-FU) is a strong anti-cancer drug used to manage numerous cancers. Cardiotoxicity, renal toxicity, and liver toxicity are some of the adverse effects which confine its clinical use to some extent. 5-FU-induced organ injuries are associated with redox imbalance, inflammation, and damage to heart functioning, particularly in the present study. Myricetin is an abundant flavonoid, commonly extracted from berries and herbs having anti-oxidative and anti-cancer activities. We planned the current work to explore the beneficial effects of myricetin against 5-FU-induced cardiac injury in Wistar rats through a biochemical and histological approach. Prophylactic myricetin treatment at two doses (25 and 50 mg/kg) was given to rats orally for 21 days against cardiac injury induced by a single injection of 5-FU (150 mg/kg b.wt.) given on the 20th day intraperitoneally. The 5-FU injection induced oxidative stress, inflammation, and extensive cardiac damage. Nevertheless, myricetin alleviated markers of inflammation, apoptosis, cardiac toxicity, oxidative stress, and upregulated anti-oxidative machinery. The histology of heart further supports our biochemical findings mitigated by the prophylactic treatment of myricetin. Henceforth, myricetin mitigates 5-FU-induced cardiac damage by modulating oxidative stress, inflammation, and cardiac-specific markers, as found in the present study.

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