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1.
Medicina (Kaunas) ; 59(4)2023 Mar 23.
Artigo em Inglês | MEDLINE | ID: mdl-37109600

RESUMO

Background and Objectives: The study of clinical pharmacokinetics of inhaled antivirals is particularly important as it helps one to understand the therapeutic efficacy of these drugs and how best to use them in the treatment of respiratory viral infections such as influenza and the current COVID-19 pandemic. The article presents a systematic review of the available pharmacokinetic data of inhaled antivirals in humans, which could be beneficial for clinicians in adjusting doses for diseased populations. Materials and Methods: This systematic review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 guidelines. A comprehensive literature search was conducted using multiple databases, and studies were screened by two independent reviewers to assess their eligibility. Data were extracted from the eligible studies and assessed for quality using appropriate tools. Results: This systematic review evaluated the pharmacokinetic parameters of inhaled antiviral drugs. The review analyzed 17 studies, which included Zanamivir, Laninamivir, and Ribavirin with 901 participants, and found that the non-compartmental approach was used in most studies for the pharmacokinetic analysis. The outcomes of most studies were to assess clinical pharmacokinetic parameters such as the Cmax, AUC, and t1/2 of inhaled antivirals. Conclusions: Overall, the studies found that the inhaled antiviral drugs were well tolerated and exhibited favorable pharmacokinetic profiles. The review provides valuable information on the use of these drugs for the treatment of influenza and other viral respiratory infections.


Assuntos
COVID-19 , Influenza Humana , Humanos , Antivirais/uso terapêutico , Influenza Humana/tratamento farmacológico , Pandemias , Zanamivir/efeitos adversos
2.
Molecules ; 27(23)2022 Nov 28.
Artigo em Inglês | MEDLINE | ID: mdl-36500401

RESUMO

In the current study, the hepatoprotective activity of vanillic acid, silymarin, and vanillic acid-loaded silver nanoparticles (AgNPs) against CCl4-induced hepatotoxicity was tested in male rats for four weeks. Thirty male rats were divided into five groups (n = 6). The 1st group was a negative control, the 2nd group was a positive control, the 3rd group was treated with 100 mg/kg b.w. of vanillic acid, the 4th group was treated with 100 mg/kg b.w. of vanillic acid-AgNPs, and the 5th group was treated with 50 mg/kg b.w. of silymarin. The CCl4-induced hepatic toxicity in the 2nd group was revealed by the liver function and all other biochemical tests. Liver enzymes, bilirubin, lipid peroxidation, lactate dehydrogenase, and interleukin-6 were elevated, whereas, total protein, antioxidant enzymes, and irisin were decreased compared to the negative control. The hepatic tissues were also injured as a result of the CCl4-induced hepatotoxicity. Treating the hepatotoxic rats with vanillic acid moderately protected the rats of the 3rd group, whereas treatment with vanillic AgNPs and silymarin in G4 and G5, respectively, greatly protected the rats against the CCl4 hepatotoxicity, approaching the normal biochemical levels and liver tissue appearance. The biochemical tests were confirmed by the histological investigations of liver tissue.


Assuntos
Doença Hepática Induzida por Substâncias e Drogas , Nanopartículas Metálicas , Silimarina , Ratos , Masculino , Animais , Tetracloreto de Carbono/toxicidade , Doença Hepática Induzida por Substâncias e Drogas/metabolismo , Ácido Vanílico/farmacologia , Ácido Vanílico/metabolismo , Prata/metabolismo , Extratos Vegetais/farmacologia , Carbono/metabolismo , Silimarina/farmacologia , Antioxidantes/farmacologia , Antioxidantes/metabolismo , Fígado/metabolismo
3.
ScientificWorldJournal ; 2020: 8363685, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32908463

RESUMO

In the present study, we employ fluorescence spectroscopy, dynamic light scattering, and molecular docking methods. Binding of anticancer drug anastrozole with human lysozyme (HL) is studied. Binding of anastrozole to HL is moderate but spontaneous. There is anastrozole persuaded hydrodynamic change in HL, leading to molecular compaction. Binding of anastrozole to HL also decreased in vitro lytic activity of HL. Molecular docking results suggest the electrostatic interactions and van der Waals forces played key role in binding interaction of anastrozole near the catalytic site. Binding interaction of anastrozole to proteins other than major transport proteins in blood can significantly affect pharmacokinetics of this molecule. Hence, rationalizing drug dosage is important. This study also points to unrelated effects that small molecules bring in the body that are considerable and need thorough investigation.


Assuntos
Anastrozol/química , Antineoplásicos/química , Simulação de Acoplamento Molecular , Simulação de Dinâmica Molecular , Muramidase/química , Análise Espectral , Anastrozol/farmacologia , Antineoplásicos/farmacologia , Ativação Enzimática , Humanos , Conformação Molecular , Estrutura Molecular , Muramidase/metabolismo , Ligação Proteica , Relação Estrutura-Atividade
4.
Bioorg Med Chem ; 27(8): 1629-1638, 2019 04 15.
Artigo em Inglês | MEDLINE | ID: mdl-30879864

RESUMO

Non-small cell lung cancer (NSCLC) and hepatocellular carcinoma (HCC) are leading causes of cancer mortality and morbidity around the world. Despite the recent advances in their diagnosis and therapy, their prognosis remains poor owing to the development of drug resistance and metastasis. Raloxifene (RX), a drug first used in the treatment of osteoporosis, was recently approved for NSCLC and HCC prevention. Unfortunately, many of the therapies that use RX are likely to become ineffective due to drug resistance. Herein, we developed a novel delivery strategy by utilizing hyaluronic acid (HA) and chitosan (CS) complexation to increase the half-life and activity of RX. Consequently, we explored the pro-apoptotic and cytotoxic effects of RX-HA-CS nanoparticles (NPs) against NSCLC (A549) and HCC (HepG2 and Huh-7) cell lines. The highest entrapment efficiency (EE%) was noted in RX-HA-CS NPs (92%) compared to RX-HA NPs (87.5%) and RX-CS NPs (68%). In addition, RX-HA-CS NPs induced the highest cytotoxicity against A549 cells compared to other platforms. The significant suppression of A549 cell viability was achieved via glucose uptake reduction resulting in diminished bioenergetics of cancer cells and activation of apoptosis via nitric oxide level elevation. This study is the first to assess the efficacy of RX in its HA-CS nano-formulation against lung and liver cancer cells and demonstrated its selective cytotoxic and apoptotic potential against human lung A549 cancer cell line. These findings demonstrate a promising drug delivery system to help mitigate drug resistance in lung cancer.


Assuntos
Antineoplásicos/farmacologia , Apoptose/efeitos dos fármacos , Quitosana/química , Ácido Hialurônico/química , Nanopartículas/química , Cloridrato de Raloxifeno/química , Antineoplásicos/química , Linhagem Celular Tumoral , Portadores de Fármacos/química , Liberação Controlada de Fármacos , Resistencia a Medicamentos Antineoplásicos/efeitos dos fármacos , Humanos , Neoplasias Pulmonares/metabolismo , Neoplasias Pulmonares/patologia , Malondialdeído/metabolismo , Óxido Nítrico/metabolismo , Tamanho da Partícula , Cloridrato de Raloxifeno/farmacologia
5.
Bioorg Med Chem ; 26(3): 623-629, 2018 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-29290491

RESUMO

In the rapidly expanding era of cancer target therapy, regulators of apoptosis are emerging as attractive therapeutic targets. X-linked inhibitor of apoptosis (XIAP) is of specific interest owing to its characteristic overexpression in a wide variety of neoplasms, with a resultant survival advantage for tumor cells and treatment resistance. In this study, we examined three pyrazolo [3,4-d] pyridazine derivatives (PPDs) through molecular modeling and studied their modes of interaction with XIAP-BIR3 domain. PPD-1, which possessed the highest binding affinity with XIAP, was tested on A549 (lung cancer cell line); HCT-116 (colorectal carcinoma cell line); HEPG2 (liver carcinoma cell line), HFB4 (normal human skin melanocyte cell line) and WI-38 (human embryonic lung fibroblasts). In comparison to cisplatin as a positive control, PPD-1 yielded remarkable cytotoxicity on all cancer cell lines, with the highest anti-tumor activity on A549 and a favorable therapeutic ratio. Flow cytometry studies concluded that PPD-1 treatment induces Sub G1 and G2/M cell cycle arrest and apoptosis. The percentage of apoptotic cells in PPD-1 treated A549 cells was considerably higher than that in untreated cells (10.06% vs 0.57%, respectively). To further investigate the mechanism of induction of apoptosis by PPD-1, Real time-PCR was used to quantify the expression levels of key apoptotic regulators. Significant overexpression of the effector capsase-3, pro-apoptotic bax and tumor suppressor gene p53 were noted as compared to untreated cells (7.19 folds, 7.28 folds, and 5.08 folds, respectively). Moreover, PPD-1 inhibited the expression of the anti-apoptotic bcl-2 gene to 0.22 folds. These findings demonstrate that PPD-1 treatment disrupts the Bcl-2/BAX balance in lung cancer cell lines, leading to apoptosis induction possibly through intrinsic mitochondria-dependent pathway. These novel insights elucidate the mechanism of PPD-1 cytotoxicity in lung cancer cell lines and offer a promising therapeutic approach that needs further study.


Assuntos
Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Proteínas Proto-Oncogênicas c-bcl-2/metabolismo , Pirazóis/química , Pirazóis/farmacologia , Piridazinas/química , Piridazinas/farmacologia , Proteína X Associada a bcl-2/metabolismo , Células A549 , Apoptose/efeitos dos fármacos , Sítios de Ligação , Caspase 3/genética , Caspase 3/metabolismo , Pontos de Checagem do Ciclo Celular/efeitos dos fármacos , Linhagem Celular Tumoral , Proliferação de Células/efeitos dos fármacos , Células HCT116 , Células Hep G2 , Humanos , Neoplasias Pulmonares , Simulação de Acoplamento Molecular , Estrutura Terciária de Proteína , Proteínas Proto-Oncogênicas c-bcl-2/genética , Proteína Supressora de Tumor p53/genética , Proteína Supressora de Tumor p53/metabolismo , Proteína X Associada a bcl-2/genética
6.
BMC Nephrol ; 19(1): 219, 2018 09 04.
Artigo em Inglês | MEDLINE | ID: mdl-30180818

RESUMO

BACKGROUND: Nephrotoxicity is a major hazard complicating the use of platinum based drugs (PBD), which can hinder using higher doses protocols to maximize the therapeutic gain. Shortage of serum creatinine level as an accurate biomarker for acute kidney injuries (AKI) necessitates searching for novel biomarkers with better sensitivity and specificity in patients on PBD. METHODS: In a prospective cohort design, 132 patients receiving PBD were selected for the study. AKI was diagnosed by continuous follow up of serum creatinine level according to Kidney Disease: Improving Global Outcomes (KDIGO) guidelines 2012. Serum creatinine and urinary biomarkers (KIM-1, NGAL and cystatin C) was measured in the day of treatment and for 3 days after PBD cycle. RESULTS: AKI occurred in 35 patients (26.52% of patients). KIM-1, Cystatin C, and NGAL showed significant increase in samples collected in the day of AKI in comparison to their corresponding basal levels (P <  0.0001). In addition, significant increase in urinary levels of the biomarkers in samples collected 1 day before AKI in comparison to their basal levels (P <  0.0001, P <  0.0001, and P = 0.013 for KIM-1, NGAL and Cystatin C respectively). Furthermore KIM-1 data showed a significant increase 2 days before serum creatinine rise in comparison to the corresponding KIM-1 levels in patients who developed AKI (P = 0.001). CONCLUSIONS: Urinary KIM-1, Cystatin C and NGAL can predict PBD induced AKI in earlier stages than serum createnine. KIM-1 is the most sensitive biomarker for early detection of AKI in patients receiving PBD.


Assuntos
Injúria Renal Aguda/induzido quimicamente , Injúria Renal Aguda/urina , Receptor Celular 1 do Vírus da Hepatite A/metabolismo , Compostos de Platina/toxicidade , Injúria Renal Aguda/diagnóstico , Adulto , Biomarcadores/urina , Estudos de Coortes , Cistatina C/urina , Feminino , Humanos , Lipocalina-2/urina , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos
7.
Apoptosis ; 22(12): 1487-1509, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-29067538

RESUMO

Inhibitor of apoptosis (IAP) family comprises a group of endogenous proteins that function as main regulators of caspase activity and cell death. They are considered the main culprits in evasion of apoptosis, which is a fundamental hallmark of carcinogenesis. Overexpression of IAP proteins has been documented in various solid and hematological malignancies, rendering them resistant to standard chemotherapeutics and radiation therapy and conferring poor prognosis. This observation has urged their exploitation as therapeutic targets in cancer with promising pre-clinical outcomes. This review describes the structural and functional features of IAP proteins to elucidate the mechanism of their anti-apoptotic activity. We also provide an update on patterns of IAP expression in different tumors, their impact on treatment response and prognosis, as well as the emerging investigational drugs targeting them. This aims at shedding the light on the advances in IAP targeting achieved to date, and encourage further development of clinically applicable therapeutic approaches.


Assuntos
Antineoplásicos/uso terapêutico , Apoptose/efeitos dos fármacos , Caspases/metabolismo , Proteínas Inibidoras de Apoptose/antagonistas & inibidores , Proteínas Inibidoras de Apoptose/metabolismo , Neoplasias/tratamento farmacológico , Animais , Apoptose/fisiologia , Descoberta de Drogas , Resistencia a Medicamentos Antineoplásicos , Regulação Neoplásica da Expressão Gênica/efeitos dos fármacos , Regulação Neoplásica da Expressão Gênica/fisiologia , Humanos , Proteínas Inibidoras de Apoptose/genética , Neoplasias/genética , Neoplasias/metabolismo
8.
Molecules ; 22(11)2017 Nov 05.
Artigo em Inglês | MEDLINE | ID: mdl-29113080

RESUMO

Acyclovir (ACV) and penciclovir (PNV) have been commonly used during the last few decades as potent antiviral agents, especially for the treatment of herpes virus infections. In the present research their binding properties with human serum albumin (HSA) were studied using different advanced spectroscopic and in-silico methods. The interactions between ACV/PNV and HSA at the three investigated temperatures revealed a static type of binding. Extraction of the thermodynamic parameters of the ACV-HSA and PNV-HSA systems from the measured spectrofluorimetric data demonstrated spontaneous interactions with an enthalpy change (∆H°) of -1.79 ± 0.29 and -4.47 ± 0.51 kJ·mol-1 for ACV and PNV, respectively. The entropy change (∆S°) of 79.40 ± 0.95 and 69.95 ± 1.69 J·mol-1·K-1 for ACV and PNV, respectively, hence supported a potential contribution of electrostatic binding forces to the ACV-HSA and PNV-HSA systems. Putative binding of ACV/PNV to HSA, using previously reported site markers, showed that ACV/PNV were bound to HSA within subdomains IIA and IIIA (Sudlow sites I and II). Further confirmation was obtained through molecular docking studies of ACV-HSA and PNV-HSA binding, which confirmed the binding site of ACV/PNV with the most stable configurations of ACV/PNV within the HSA. These ACV/PNV conformers were shown to have free energies of -25.61 and -22.01 kJ·mol-1 for ACV within the HSA sites I and II and -22.97 and -26.53 kJ·mol-1 for PNV in HSA sites I and II, with hydrogen bonding and electrostatic forces being the main binding forces in such conformers.


Assuntos
Aciclovir/análogos & derivados , Aciclovir/metabolismo , Antivirais/metabolismo , Albumina Sérica Humana/química , Albumina Sérica Humana/metabolismo , Sítios de Ligação , Guanina , Humanos , Ligação de Hidrogênio , Modelos Moleculares , Simulação de Acoplamento Molecular , Estrutura Molecular , Ligação Proteica , Domínios Proteicos , Termodinâmica
9.
Eur Biophys J ; 45(1): 45-54, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26596272

RESUMO

Mucins are the primary macromolecular component of mucus--nature's natural lubricant--although they are poorly characterised heterogeneous substances. Recent advances in hydrodynamic methodology now offer the opportunity for gaining a better understanding of their solution properties. In this study a combination of such methods was used to provide increased understanding of a preparation of porcine intestinal mucin (PIM), MUC2 mucin, in terms of both heterogeneity and quantification of conformational flexibility. The new sedimentation equilibrium algorithm SEDFIT-MSTAR is applied to yield a weight average (over the whole distribution) molar mass of 7.1 × 10(6) g mol(-1), in complete agreement with size exclusion chromatography coupled with multi-angle light scattering (SEC-MALS), which yielded a value of 7.2 × 10(6) g mol(-1). Sedimentation velocity profiles show mucin to be very polydisperse, with a broad molar mass distribution obtained using the Extended Fujita algorithm, consistent with the elution profiles from SEC-MALS. On-line differential pressure viscometry coupled to the SEC-MALS was used to obtain the intrinsic viscosity [η] as a function of molar mass. These data combined with sedimentation coefficient data into the global conformation algorithm HYDFIT show that PIM has a flexible linear structure, with persistence length L p ~10 nm and mass per unit length, M L ~2380 g mol(-1) nm(-1), consistent with a Wales-van Holde ratio of ~1.2 obtained from the concentration dependence of the sedimentation coefficient.


Assuntos
Algoritmos , Hidrodinâmica , Mucina-2/química , Animais , Fracionamento por Campo e Fluxo/métodos , Mucosa Intestinal/metabolismo , Soluções , Suínos
10.
Analyst ; 139(1): 79-92, 2014 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-24244936

RESUMO

Sedimentation equilibrium (analytical ultracentrifugation) is one of the most inherently suitable methods for the determination of average molecular weights and molecular weight distributions of polymers, because of its absolute basis (no conformation assumptions) and inherent fractionation ability (without the need for columns or membranes and associated assumptions over inertness). With modern instrumentation it is also possible to run up to 21 samples simultaneously in a single run. Its application has been severely hampered because of difficulties in terms of baseline determination (incorporating estimation of the concentration at the air/solution meniscus) and complexity of the analysis procedures. We describe a new method for baseline determination based on a smart-smoothing principle and built into the highly popular platform SEDFIT for the analysis of the sedimentation behavior of natural and synthetic polymer materials. The SEDFIT-MSTAR procedure - which takes only a few minutes to perform - is tested with four synthetic data sets (including a significantly non-ideal system), a naturally occurring protein (human IgG1) and two naturally occurring carbohydrate polymers (pullulan and λ-carrageenan) in terms of (i) weight average molecular weight for the whole distribution of species in the sample (ii) the variation in "point" average molecular weight with local concentration in the ultracentrifuge cell and (iii) molecular weight distribution.


Assuntos
Fracionamento por Campo e Fluxo/métodos , Polímeros/análise , Polímeros/química , Animais , Humanos , Camundongos , Peso Molecular , Ultracentrifugação/métodos
11.
PLoS One ; 19(6): e0303098, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38857243

RESUMO

Type 1 diabetes mellitus (T1DM) is an autoimmune disease characterized by the dysfunctional metabolism of carbohydrates, fats, and proteins caused by impaired insulin secretion and insulin resistance. This study investigated the feasibility of using point shear wave elastography (pSWE) of the pancreas by comparing the shear wave velocity (SWV) measurements of three anatomical areas in patients with T1DM and healthy volunteers. This study included 30 patients with T1DM (9 male, 21 female) and 23 healthy controls (11 men, 12 women). Two experienced certified operators performed the examinations and took the SWV measurements. The mean SWV of the entire pancreas parenchyma differed significantly between patients and controls (1.1 ± 0.29 and 0.74 ± 0.19 m/s, respectively; p ≤ 0.001). Moreover, the SWVs of the pancreatic segments were significantly different in patients and controls; the mean SWV values of the pancreas head, body, and tail (respectively) in patients vs. controls were 0.99 ± 0.36 vs. 0.76 ± 0.26 m/s (p = 0.012), 1.1 ± 0.52 vs. 0.74 ± 0.23 (p ≤ 0.001), and 1.0 ± 0.34 vs. 0.73 ± 0.28 (p ≤ 0.001). This study confirmed the feasibility of quantifying pancreas tissue stiffness with pSWE and revealed that patients with T1DM had higher pancreas tissue stiffness than controls. Further studies are required to determine the potential value of pSWE as a screening tool in patients with prediabetes.


Assuntos
Diabetes Mellitus Tipo 1 , Técnicas de Imagem por Elasticidade , Estudos de Viabilidade , Pâncreas , Humanos , Técnicas de Imagem por Elasticidade/métodos , Masculino , Feminino , Adulto , Diabetes Mellitus Tipo 1/diagnóstico por imagem , Diabetes Mellitus Tipo 1/fisiopatologia , Pâncreas/diagnóstico por imagem , Pâncreas/patologia , Pâncreas/metabolismo , Pessoa de Meia-Idade , Voluntários Saudáveis , Estudos de Casos e Controles
12.
Medicine (Baltimore) ; 103(6): e36872, 2024 Feb 09.
Artigo em Inglês | MEDLINE | ID: mdl-38335415

RESUMO

Developmental dysplasia of the hip (DDH) is a common hip disorder in infants. Ultrasonographic screening is considered the most reliable method for early detection of DDH in newborn infants. This study aimed to determine the incidence of DDH at King Abdulaziz University Hospital. From January 2017 to December 2018, this retrospective study analyzed the data of 8031 infants who underwent an early clinical examination of the hips. At the initial evaluation, 212 infants referred to the ultrasound department had risk factors for DDH and/or clinical instability. Different well-known risk factors of DDH have been identified including breech position, skeletal deformities, positive family history, hip side, sex and clicky hip. The findings revealed an incidence rate of 93 cases of DDH among 8031 infants (11.58 per 1000) births. Among the infants diagnosed with DDH, 55 were females (59.14 %), and 38 were males (40.86%). The results of the current study revealed that 45% of infants with DDH exhibited bilateral involvement. Moreover, results showed that the IIa hip joint was more prevalent in female than in male newborns, but without any significant difference. The incidence rate of DDH in this study was 11.58 per 1000 live births, and it was more prevalent among female than male newborns. Ultrasonography (US) should be used as a complementary imaging modality for clinical examination of DDH. Infants with breech presentation, clicky hip, and skeletal deformity should be scanned by US. Further prospective studies are recommended.


Assuntos
Displasia do Desenvolvimento do Quadril , Luxação Congênita de Quadril , Lactente , Gravidez , Humanos , Recém-Nascido , Masculino , Feminino , Estudos Retrospectivos , Luxação Congênita de Quadril/diagnóstico por imagem , Luxação Congênita de Quadril/epidemiologia , Incidência , Estudos Prospectivos , Arábia Saudita/epidemiologia , Fatores de Risco , Ultrassonografia/efeitos adversos
13.
Curr Med Imaging ; 20: e15734056280317, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38500278

RESUMO

BACKGROUND: Chronic Kidney Disease [CKD] affects individuals of different age groups worldwide. Moreover, CKD is associated with several risk factors, including obesity, lifestyle, and hypertension, which are common in the Middle East. Ultrasonography is the examination of choice for CKD. In recent years, Shear Wave Elastography [SWE] has developed through the continued development of ultrasound and received substantial attention ;therefore, it can be used to measure tissue stiffness. The study aimed to use point Shear Wave Elastography [p-SWE] to determine the correlation between diabetes and cortical renal thickness in detecting pathologies. METHODS: This study was performed at the King Abdul-Aziz University Hospital. We examined 61 patients who underwent SWE. The patients were classified into two groups based on the presence or absence of type 2 Diabetes Mellitus [DM]. RESULTS: The results showed that there was a significant correlation between cortical stiffness and DM duration [p<0.005]. In addition, there was a negative correlation between cortical stiffness and cortical thickness [p=0.147] in patients with DM. Moreover, the eGFR decreased with an increase in cortical stiffness [p=0.499]. The cortical thickness in patients with and without DM was 0.750 ± 0.2 kPa and 0.788 ± 0.4 kPa, respectively. The kidney stiffness in patients with DM and control patients was 8.5 ± 8.6 cm and 14.0 ± 25.16 cm, respectively. CONCLUSION: This study showed that kidney p-SWE measurements were reliable. Therefore, further studies assessing kidney stiffness in patients with and without people with diabetes are recommended.


Assuntos
Diabetes Mellitus Tipo 2 , Técnicas de Imagem por Elasticidade , Estudos de Viabilidade , Córtex Renal , Humanos , Técnicas de Imagem por Elasticidade/métodos , Masculino , Feminino , Estudos Prospectivos , Pessoa de Meia-Idade , Córtex Renal/diagnóstico por imagem , Diabetes Mellitus Tipo 2/diagnóstico por imagem , Diabetes Mellitus Tipo 2/complicações , Adulto , Insuficiência Renal Crônica/diagnóstico por imagem , Insuficiência Renal Crônica/fisiopatologia , Idoso , Taxa de Filtração Glomerular/fisiologia
14.
Nat Prod Res ; : 1-11, 2024 Jul 26.
Artigo em Inglês | MEDLINE | ID: mdl-39056203

RESUMO

Artemisia species are characterised by their antioxidant, anticancer, antibacterial, and anti-diabetic activities thanks to their phenolic and flavonoid content. These phenolic and flavonoid chemicals scavenge free radicals and reduce oxidative stress, which helps to guard against many diseases brought on by the buildup of free radicals and increased oxidative stress. In addition to acting as an antibacterial agent, it assisted in preventing cancer, hyperglycaemia, and diabetes. Antioxidant research has generally drawn attention due to its major contribution to the fight against numerous chronic illnesses, such as cancer and cardiovascular disorders. Several techniques were used to measure the enzymatic antioxidants (glutathione reductase, catalase, peroxidase, ascorbate oxidase, guaiacol peroxidase, superoxide dismutase and ascorbate peroxidase) in addition to the nonenzymatic antioxidants such as total phenolic acids, total polyphenol, ascorbic acid, total flavonoids and anthocyanin. Artemisinin (endoperoxide 1,2,4-trioxane ring.) is the main therapeutic constituent of Artemisia species.

15.
J Public Health Dent ; 84(2): 187-197, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38599647

RESUMO

OBJECTIVE: This study examines the differences, by state, in dental care utilization and tooth retention between adults with and without diabetes mellitus (DM). METHODS: We conducted a secondary analysis of data from the 2020 Behavioral Risk Factor Surveillance System, an annual, state-based, random telephone survey of noninstitutionalized US civilian adults. The predictor variable was DM status. The outcome variables were time since the last dental appointment and tooth loss. We utilized multiple multinomial logistic regression models followed by postestimation procedures to determine state-level adjusted proportions for dental visits within the last year and complete teeth retention among DM and non-DM adults. RESULTS: Among adults with DM, 60.0% reported dentist visits within a year of survey participation, while 53.6% had complete tooth retention. As education and income levels increased, dental attendance and tooth retention increased among adults with DM. Most Southern states had a higher prevalence of DM, a lower proportion of dentist visits, and worse tooth retention among DM adults. Nationally, DM individuals were 4.3 percentage points less likely to visit a dentist and were 7 percent less likely to have complete teeth retention than non-DM adults. Compared with the national average, 25/50 states had greater disparities in dental visits between DM and non-DM adults, and 27/50 states had greater disparities in tooth loss between DM and non-DM adults. CONCLUSION: State-level variations indicate geographical and dental coverage influences on DM and dental outcomes. There is a need for state-specific interventions to improve dental access and outcomes for adults with DM.


Assuntos
Sistema de Vigilância de Fator de Risco Comportamental , Assistência Odontológica , Diabetes Mellitus , Humanos , Estados Unidos/epidemiologia , Masculino , Feminino , Adulto , Assistência Odontológica/estatística & dados numéricos , Pessoa de Meia-Idade , Diabetes Mellitus/epidemiologia , Idoso , Adolescente , Perda de Dente/epidemiologia , Adulto Jovem
16.
Cureus ; 16(3): e56311, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38501025

RESUMO

Fibroma is a benign fibrous tissue growth that develops in response to injury or irritation. It is usually firm, painless, nodular, and merging in color with the surrounding tissue. Commonly located in areas such as the buccal mucosa, tongue, and lip, the usual treatment involves surgical removal. In this case report, we present a rare instance of misdiagnosed extraoral irritational fibroma that emerged following the surgical extractions of the lower left third molar.

17.
Cureus ; 16(1): e52508, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38371106

RESUMO

Background The most frequent gynecologic cancer in women is cervical cancer. The majority of incidents take place in less developed nations without access to reliable screening tools. Human papillomavirus (HPV) exposure, smoking, and immune system dysfunction are risk factors. As a result of effective screening, its incidence and death have significantly decreased in many nations. Hence, this study aims to assess the level of knowledge and awareness among parents regarding HPV, including its associated health risks and the benefits of vaccination. Methodology A descriptive cross-sectional study was carried out in the Riyadh region of Saudi Arabia from September to November 2023. The main tool used for gathering data was an online, self-administered survey via Google Forms. Collected data was analysed using SPSS v. 24 (IBM Corp., Armonk, NY), where all applicable statistical tests were used. Results Females exhibited higher levels of confidence and agreement with COVID-19 and HPV vaccination recommendations compared to males. A substantial percentage of males expressed strong disagreement and reduced confidence in HPV vaccination, contributing to the gender-based divergence. Individuals with higher education levels, such as university degree graduates, showed greater support for compulsory vaccines and a preference for natural immunity development in their children. Marital status played a role in vaccine-related decisions, with variations in vaccine refusal rates and difficulty discussing the HPV vaccine noted among individuals based on their marital status. Conclusion The study highlights the value of medical experts and specifically created training programs to close knowledge gaps and boost HPV vaccination rates. Demographic factors have an impact on attitudes, which highlights the need for targeted interventions.

18.
Colloids Surf B Biointerfaces ; 241: 114040, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38917668

RESUMO

The synthesized pyrazolopyrimidine derivatives conjugated with selenium nanoparticles were prepared via a reaction of pyrazolone 1 with aryl-aldehyde and malononitrile or 3-oxo-3-phenylpropanenitrile in the presence ammonium acetate or pipridine using an ultrasonic bath as a modified method in the organic synthesis for such materials. The structure of the synthesized compounds was elucidated through various techniques. All the synthesized pyrazolopyrimidines were used in the synthesis of selenium nanoparticles (SeNPs). These nanoparticles were confirmed using UV-spectra, Dynamic Light scattering and (TEM) techniques. The larvicidal efficiency;of the synthesized;compounds; was investigated against some strains such as Culex pipiens;and Musca domestica larvae. Bioassay test showed pyrazolopyrimide derivatives to exhibit an acceptable larvicidal;bio-efficacy. The derivative (3) exhibited;the highest;efficiency for more than; lab strains of both species. Moreover, C. pipiens larvae were more sensitive towards the examined compounds than M. domestica. The field;strain displayed lower affinity for the 2 folds compounds. Some biochemical changes were tracked through analysis of insect main metabolites (protein, lipid and carbohydrate), in addition to measuring the changes in seven enzymes after treatment. Generally, there was a reduction in the protein, lipids and carbohydrates after treatment with all tested compounds. Moreover, a decrement was noticed for acetylcholine esterase and glutathione;S-transferase; enzymes. There was an increment in the acid;phosphatase; and alkaline phosphatase. In addition, there was elevation in Phenoloxidase level but it noticed the declination in both Cytochrome P450 and Ascorbate peroxidase activity after treatment both flies with derivatives of selenium-nanoparticles in both lab and field strain. Generally, the experiments carried out indicate that antioxidant and detoxification enzymes may play a significant role in mechanism of action of our novel nanocompounds. The cytotoxicity of the synthesized compounds and conjugated with SeNPs showed enhanced compatibility with human normal fibroblast cell line (BJ1) with no toxic effect.


Assuntos
Culex , Moscas Domésticas , Inseticidas , Larva , Nanopartículas Metálicas , Pirimidinas , Selênio , Animais , Culex/efeitos dos fármacos , Culex/crescimento & desenvolvimento , Larva/efeitos dos fármacos , Moscas Domésticas/efeitos dos fármacos , Inseticidas/farmacologia , Inseticidas/química , Inseticidas/síntese química , Selênio/química , Selênio/farmacologia , Pirimidinas/farmacologia , Pirimidinas/química , Pirimidinas/síntese química , Nanopartículas Metálicas/química , Pirazóis/farmacologia , Pirazóis/química , Pirazóis/síntese química , Nanopartículas/química
19.
Cureus ; 16(1): e52974, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38406000

RESUMO

INTRODUCTION: Interventional radiology (IR) is a medical specialty that employs imaging techniques such as X-rays, ultrasound, CT scans, and MRI to guide minimally invasive procedures for diagnosing and treating a variety of medical disorders. The purpose of this investigation was to determine the level of IR awareness among medical students at Majmaah University. METHODS: The cross-sectional investigation was carried out among the medical students at Majmaah University in Saudi Arabia. A self-administered questionnaire that had been pretested was used to gather the data. SPSS Statistics (IBM Corp. IBM SPSS Statistics for Windows. Armonk, NY: IBM Corp) was used to analyze the data. The chi-square test was used to compare qualitative data, and a p-value <0.05 was considered significant. RESULTS: There were 202 students who participated in this study, and among them, the majority were males, 126 (62.4%), and the majority of them were pre-clinical students, 105 (52.0%). Knowledge of routinely performed procedures by IR (only by a radiologist) was assessed; 116 (57.4%) of them responded with paracontinuous transluminal coronary angioplasty, 105 (52.0%) with central venous access, and 100 (49.5%) with lower arterial limp percutaneous transluminal angioplasty, which are routinely performed procedures by the radiologists. There was no significant difference in knowledge levels between genders. CONCLUSION: Increasing awareness of IR among medical students is essential to improving patient outcomes and addressing healthcare challenges. Efforts to educate and expand access to IR services must be prioritized to ensure that medical students receive a comprehensive education and that patients receive the highest quality care possible.

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