Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 33
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Cleft Palate Craniofac J ; : 10556656241267234, 2024 Aug 02.
Artigo em Inglês | MEDLINE | ID: mdl-39094378

RESUMO

BACKGROUND: Clefts of the lip and palate (CL/P) and cleft palate (CP) are the most common craniofacial congenital anomalies. Clefts are classified as syndromic and nonsyndromic. Nonsyndromic clefts have no known genetic causes. OBJECTIVES: This study combines prospective and retrospective studies to review the patterns of CL/P and CP and associated syndromes and conditions in patients registered for CL/P surgery at a tertiary care pediatric center in our tertiary care hospital in Saudi Arabia. METHODS: It included patient data from May 2015 through April 2023. Patient record forms and SPSS (IBM version 20.0) were used to collect and analyze data. A significance level of 5% was used, with p ≤ 0.05 considered statistically significant. RESULTS: Of the 319 patients who met our inclusion criteria, 175 were male. Of the total, 99 had a left unilateral isolated cleft lip, 61 had a right unilateral isolated cleft lip, 69 had a bilateral cleft lip, and 90 had an isolated CP. Of the total, 140 had CL/P. Around 242 were nonsyndromic. The Chi-square test revealed a significant association between the prevalence of isolated CP and CLP and gender. The prevalence of left unilateral isolated cleft lip and bilateral and isolated CP was significantly associated with syndromic and nonsyndromic cases. CONCLUSION: Males are more likely to be affected by orofacial clefts, which is consistent with the global trend. Isolated CP was the most common orofacial cleft. Within the sample, syndromes' association with orofacial clefts was significantly weaker than that of isolated and bilateral clefts.

2.
Cell Commun Signal ; 21(1): 351, 2023 12 14.
Artigo em Inglês | MEDLINE | ID: mdl-38098017

RESUMO

Oropharyngeal cancer, a subset of head and neck cancer, is increasingly recognized as a unique clinical entity primarily influenced by high-risk human papillomavirus (HPV) infections, particularly HPV-16. This review delves into the viral life cycle of HPV-16 and its interactions with host cells, with a specific focus on the crucial roles played by the viral oncoproteins E6 and E7. These oncoproteins drive cellular proliferation by targeting critical tumor suppressor proteins like p53 and Rb, resulting in uncontrolled cell growth and genomic instability. Furthermore, the significance of epigenetic modifications induced by HPV-16 and their implications is important for cancer progression. This comprehensive review provides valuable insights into the intricate molecular landscape of HPV-induced oropharyngeal cancer, shedding light on the development of targeted therapies and preventive strategies for this emerging global health concern. Video Abstract.


Assuntos
Neoplasias de Cabeça e Pescoço , Proteínas Oncogênicas Virais , Neoplasias Orofaríngeas , Infecções por Papillomavirus , Humanos , Papillomavirus Humano 16/genética , Papillomavirus Humano 16/metabolismo , Proteínas Oncogênicas Virais/metabolismo , Neoplasias Orofaríngeas/patologia , Proteínas E7 de Papillomavirus/genética , Infecções por Papillomavirus/complicações , Infecções por Papillomavirus/genética , Infecções por Papillomavirus/patologia
3.
Environ Res ; 234: 116007, 2023 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-37119844

RESUMO

The metabolism of cancer has been an interesting hallmark and metabolic reprogramming, especially the change from oxidative phosphorylation in mitochondria to glucose metabolism known as glycolysis occurs in cancer. The molecular profile of glycolysis, related molecular pathways and enzymes involved in this mechanism such as hexokinase have been fully understood. The glycolysis inhibition can significantly decrease tumorigenesis. On the other hand, circRNAs are new emerging non-coding RNA (ncRNA) molecules with potential biological functions and aberrant expression in cancer cells which have received high attention in recent years. CircRNAs have a unique covalently closed loop structure which makes them highly stable and reliable biomarkers in cancer. CircRNAs are regulators of molecular mechanisms including glycolysis. The enzymes involved in the glycolysis mechanism such as hexokinase are regulated by circRNAs to modulate tumor progression. Induction of glycolysis by circRNAs can significantly increase proliferation rate of cancer cells given access to energy and enhance metastasis. CircRNAs regulating glycolysis can influence drug resistance in cancers because of theirimpact on malignancy of tumor cells upon glycolysis induction. TRIM44, CDCA3, SKA2 and ROCK1 are among the downstream targets of circRNAs in regulating glycolysis in cancer. Additionally, microRNAs are key regulators of glycolysis mechanism in cancer cells and can affect related molecular pathways and enzymes. CircRNAs sponge miRNAs to regulate glycolysis as a main upstream mediator. Moreover, nanoparticles have been emerged as new tools in tumorigenesis suppression and in addition to drug and gene delivery, then mediate cancer immunotherapy and can be used for vaccine development. The nanoparticles can delivery circRNAs in cancer therapy and they are promising candidates in regulation of glycolysis, its suppression and inhibition of related pathways such as HIF-1α. The stimuli-responsive nanoparticles and ligand-functionalized ones have been developed for selective targeting of glycolysis and cancer cells, and mediating carcinogenesis inhibition.


Assuntos
MicroRNAs , Neoplasias , Humanos , RNA Circular/metabolismo , Hexoquinase/genética , Hexoquinase/metabolismo , Neoplasias/terapia , Neoplasias/genética , MicroRNAs/genética , MicroRNAs/metabolismo , Carcinogênese , Transformação Celular Neoplásica , Glicólise , Proteínas de Ciclo Celular/metabolismo , Quinases Associadas a rho/metabolismo , Proteínas com Motivo Tripartido/metabolismo , Peptídeos e Proteínas de Sinalização Intracelular/metabolismo
4.
Medicina (Kaunas) ; 58(8)2022 Aug 03.
Artigo em Inglês | MEDLINE | ID: mdl-36013507

RESUMO

Inflammation is pivotal to the pathogenesis of diabetes mellitus (DM), but pathological alterations of the neutrophil−lymphocyte ratio (NLR), an emerging inflammatory index in DM management, remains understudied. The aim of this study is to examine the relationship between NLR and glycemic control in the Saudi population. Gender, age, WBC count, and fasting blood glucose (FBG) were obtained from Al-Borg Medical Laboratories for 14,205 subjects. Means, prevalence, risk measures, and the diagnostic accuracy of elevated NLR and hyperglycemia (HG) were evaluated. Subjects with elevated NLR (>3) had significantly higher FBG (105.10 ± 0.33 vs. 114.0 ± 2.81) and NLR was significantly elevated in impaired fasting glycemia (IFG; 1.21 ± 0.01 vs. 1.25 ± 0.01) and HG (1.21 ± 0.01 vs. 1.39 ± 0.02). Elevations of NLR in HG but not in IFG persisted across all age groups except young males and elderly females. The prevalence of elevated NLR in hyperglycemic subjects was 4.12% compared to 2.16% in subjects with normal FBG. HG was more prevalent in subjects with elevated NLR (17.33% vs. 12.46%) who had a relative risk (RR) of 1.68 (95% CI = 1.38−2.06, p < 0.0001) and an odds ratio (OR) of 1.94 (95% CI = 1.48−2.56, p < 0.0001) to be hyperglycemic. Nevertheless, NLR failed to discriminate individuals with normal FBG from those with HG based on ROC curve analysis. Pathological fluctuations in NLR may serve as supportive evidence in DM management.


Assuntos
Hiperglicemia , Neutrófilos , Idoso , Feminino , Humanos , Hiperglicemia/epidemiologia , Contagem de Leucócitos , Contagem de Linfócitos , Linfócitos , Masculino , Curva ROC , Estudos Retrospectivos , Arábia Saudita/epidemiologia
5.
BMC Infect Dis ; 21(1): 28, 2021 Jan 07.
Artigo em Inglês | MEDLINE | ID: mdl-33413198

RESUMO

BACKGROUND: Pneumocystis pneumonia (PCP) is a fatal infectious disease caused by Pneumocystis jirovecii (PJP). The major factor relevant to morbidity and mortality seems to be the host inflammatory reaction. The objective of this study was to evaluate the role of IL-2, IL-4, IL-10, and IL-13 cytokine mRNA expression among suspected P. jirovecii infection. METHODS: This was a cross-sectional analytical study undertaken in Aseer region, Saudi Arabia. One hundred suspected PCP cases and 100 healthy controls were included in the study. Basic clinical manifestations, radiological findings, microbiological and immunological findings were extracted from the hospital records from January 2019 to August 2019, Pneumocystis detection was done by immune-fluorescent staining (IFAT, Gomorimethanamine silver staining (GMSS), Giemsa staining, Toluidine blue O (TBO), and Pneumocystis RT-PCR. RESULTS: Increased more than 5 fold, 3 fold, 4 fold, and 7 fold of IL-2, IL-4, IL-10, and IL-13 mRNA expression were observed in PCP cases compared to controls. Higher expression of IL-2 mRNA was connected with crept, wheezing and chest X-ray findings like central perihilar infiltrate, patchy infiltrate, consolidation, hilar lymphadenopathy, pneumothorax, pleural effusion which showed higher expression compared to counterpart (p< 0.0001). Higher expression of IL-4 mRNA was found to be significantly associated with weight loss (p=0.002), dyspnea (p=0.003), crept (p=0.01), and chest X-ray findings (p< 0.0001). Significantly increased expression of IL-10 mRNA was observed to be associated with weight loss, dyspnea, night sweats, wheezing, and different findings of chest X-ray compared to their counterparts, whereas, IL-13 mRNA was observed in cases with fever. Suspected cases of PCP confirmed positive by IFTA with higher IL-2, IL-4, and IL-10 mRNA expression compared to negative cases. RT-PCR confirmed PCP cases had significantly higher expression of IL-2, IL-4, and IL-10 as well as IL-13 mRNA compared to negative cases. Positive detected cases by GMSS showed higher IL-2, IL-10 mRNA expression, while Giemsa showed only higher IL-4 mRNA expression compared to negative cases. CONCLUSION: Confirmed cases of P. jirovecii showed higher IL-2, IL-4, IL-10, and IL-13 mRNA expression comparatively to negative cases. Increased expression of cytokines may be indicative of infection severity and could help in patients' management.


Assuntos
Citocinas/genética , Pneumonia por Pneumocystis/genética , Adulto , Corantes Azur , Estudos de Casos e Controles , Estudos Transversais , Citocinas/sangue , Feminino , Imunofluorescência , Expressão Gênica , Humanos , Interleucina-10/genética , Interleucina-13/genética , Interleucina-2/genética , Interleucina-4/genética , Masculino , Pessoa de Meia-Idade , Pneumocystis carinii/genética , Pneumocystis carinii/patogenicidade , Pneumonia por Pneumocystis/diagnóstico por imagem , Pneumonia por Pneumocystis/microbiologia , Reação em Cadeia da Polimerase , RNA Mensageiro/sangue , Arábia Saudita , Cloreto de Tolônio
6.
Int J Surg Case Rep ; 122: 110090, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39142182

RESUMO

INTRODUCTION AND IMPORTANCE: Polydactyly of the hand is a common anomaly among pediatrics, which can present in conjugation with other syndromes or on its own. Various types can be seen, ranging from the involvement of skin only to a completely formed digit. We report the first case of pacifier type thumb duplication presenting with VACTERL association. Herein, we also summarize the existing literature of the distinctive features and management of pacifier polydactyly. CASE PRESENTATION: A premature male infant with intrauterine growth restriction due to maternal type II diabetes was referred for a soft tissue attachment to the left hand. The infant showed VACTERL association signs, including a single kidney, small atrial septal defect, and ventricular septal defect. Examination revealed preaxial polydactyly with a cystic swelling connected to the palm. CLINICAL DISCUSSION: Preaxial polydactyly is the second most common congenital hand anomaly, and its pathology is thought to involve the disruption of apoptosis during embryonic development. Pacifier-type polydactyly is a unique variation characterized by severe edema of the soft tissue digit, believed to be caused by physical damage in utero. The case presented did not require surgical intervention as the duplicated thumb underwent spontaneous autoamputation as opposed to other cases in the literature. CONCLUSION: This is the first reported case of pacifier-type thumb duplication in a patient with VACTERL association. The presentation of this condition adds to the existing body of literature on VACTERL association. Surgical removal is the treatment of choice for pacifier polydactyly, but spontaneous resolution can occur.

7.
Medicine (Baltimore) ; 103(22): e38369, 2024 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-39259102

RESUMO

Several studies have suggested a correlation between serum vitamin D (VitD) level and multiple sclerosis (MS). MS has a known latitudinal distribution pattern, with greater incidence, prevalence, and mortality rates at higher latitudes. This study aims to assess levels of VitD and serum potassium in subjects with MS and the impact of gender and age as disease risk factors. A cross-sectional case-control study was conducted in a high-altitude region of Saudi Arabia. VitD deficiency was defined as serum 25 (OH)D level of ≤20 ng/mL and insufficiency as a serum level between >20 ng/mL and <30 ng/mL. Two hundred patients with MS volunteered for the study, and 160 healthy participants served as controls. VitD and serum potassium were measured in patients and controls. Student t test and regression analysis were used to analyze the data. The average MS patient age was 37.37 ±â€…10.8 years. Most (73.02%) MS patients suffered from deficient vitamin D, while insufficiency (20-29 ng/mL) was found in 12.17%. Only 6.35% had sufficient vitamin D (30-40 ng/mL). VitD was significantly decreased in MS patients compared to the healthy controls (17.036 vs 25.01 ng/mL, P < .001), while serum potassium was also decreased (4.278 vs 4.329 mmol/L, P = .269). Risk factors found to have a statistically significant association with MS included female gender (odd ratio [OR] = 1.72, 95% confidence interval: 1.016-2.915; P = .044) and patient age < 40 years (OR = 1.04, 95% confidence interval: 1.023-1.054; P = .044). VitD was significantly lower in MS patients. The prevalence of MS was higher among women and younger individuals in a high-altitude population in Saudi Arabia.


Assuntos
Altitude , Esclerose Múltipla , Deficiência de Vitamina D , Vitamina D , Humanos , Feminino , Masculino , Adulto , Esclerose Múltipla/sangue , Esclerose Múltipla/epidemiologia , Estudos de Casos e Controles , Fatores de Risco , Vitamina D/sangue , Deficiência de Vitamina D/epidemiologia , Deficiência de Vitamina D/sangue , Deficiência de Vitamina D/complicações , Estudos Transversais , Arábia Saudita/epidemiologia , Pessoa de Meia-Idade , Potássio/sangue , Fatores Sexuais , Fatores Etários
8.
J Biomol Struct Dyn ; : 1-10, 2023 Oct 14.
Artigo em Inglês | MEDLINE | ID: mdl-37837424

RESUMO

Leucine-rich repeat kinase 2 (LRRK2) is a promising drug target for the therapeutic management of Parkinson's disease (PD) and other neurodegenerative disorders. LRRK2 inhibitors have the potential to modulate neuroinflammation, reduce alpha-synuclein aggregation and improve motor symptoms in PD patients. Although LRRK2 inhibitors are still in the early stages of clinical development, the identification of potent and selective inhibitors through structure-guided approaches provides a promising avenue for the development of effective therapies for PD and other neurodegenerative disorders. In this study, natural compounds from the IMPPAT database were screened using a state-of-the-art computational virtual screening approach to identify potential inhibitors of LRRK2. We carried out a docking screening on a library of natural compounds and identified a few compounds with strong binding affinity, docking score and specificity towards LRRK2 as the top hits. These hits were then subjected to further analysis based on multiple parameters for the Pan-assay interference compounds and their physicochemical and pharmacokinetics evaluation followed by a detailed interaction analysis. After careful evaluation, one natural compound, Panicutine, was identified as a promising candidate for LRRK2 due to its significant affinity and specificity towards the LRRK2 binding pocket. Additionally, it exhibited drug-like properties with blood-brain barrier permeability as determined by ADMET properties. To gain a deeper understanding of the stability and conformational changes of the LRRK2-ligand complex, MD simulations were conducted for 100 nanoseconds under explicit solvent conditions followed by principal component analysis and free energy dynamics. The simulation results demonstrated that the LRRK2-Panicutine complex remained stable throughout the simulation trajectories. Based on these findings, it is concluded that Panicutine has the potential to act as a LRRK2 inhibitor against PD and other neurodegenerative disorders.Communicated by Ramaswamy H. Sarma.

9.
Int J Surg Case Rep ; 113: 109070, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-37992673

RESUMO

INTRODUCTION: Perilunate injuries are rare and are frequently missed during initial examinations. These injuries are missed upon primary evaluation in approximately 25 % of cases, which can result in catastrophic outcomes. Early diagnosis is essential to avoid chronic wrist pain and limited range of motion. IMPORTANCE: We reported rare finding & our approach in management which represents a significant contribution to the field and we believe it would be of great interest to your readers. CASE PRESENTATION: We report the case of a 25-year-old man who presented with a bilateral Perilunate fracture-dislocation injury. He underwent bilateral definitive open reduction using a dorsal approach. Headless screws were used for the internal fixation of the bilateral scaphoids, and Kirschner wires were used to secure the left distal radius and for bilateral intercarpal fixation. Aggressive physiotherapy was initiated 8 weeks after the open reduction. After 1 year, the patient showed a satisfactory outcome with an excellent bilateral Mayo wrist score. CLINICAL DISCUSSION: Perilunate dislocations and fracture-dislocations are considered orthopedic emergencies with close reduction being the initial treatment of choice. Early diagnosis and treatment of such injuries are essential to achieve optimal outcomes, which may be achieved with open reduction and internal fixation through a combined volar and dorsal approach. CONCLUSION: Perilunate injuries should be considered as one of the differential diagnoses in wrist injuries. All Perilunate injuries should undergo emergency close reduction, typically followed by open reduction and reconstruction.

10.
Int J Burns Trauma ; 13(1): 8-12, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36935880

RESUMO

Burn injuries can lead to a variety of short- and long-term complications, peripheral neuropathy has been known as the most common neuromuscular complication. 29% of the burn-related peripheral neuropathy has been found in both the upper and lower limbs. Moreover, literature failed to find the causative factors for specific presentations like foot drop in burn patients. This study reports a series of 10 patients who developed foot drop after burn injury and required occupational therapy follow up at King Abdulaziz Medical City in Riyadh. To assess the effect of different risk factors in the outcome of foot drop. 10 case records were reviewed, 70% among the patients were men and 30% were women with a mean age of 39 and a mean BMI of 28. Most of the patients 70% were burned by flame. The mean Total Body Surface Area (TBSA) was 62%. 4 of the cases (40%) were having comorbidities. There was a significant association between death and high TBSA. All cases were managed without surgical intervention, physiotherapy started immediately after the diagnosis of foot drop. Seventy percent of our patients improved while 3 cases have expired. Higher TBSA showed to be significantly associated with death.

11.
Int J Biol Macromol ; 252: 126377, 2023 Dec 01.
Artigo em Inglês | MEDLINE | ID: mdl-37595725

RESUMO

One of the most important properties of cellulolytic enzyme is its ability to convert cellulosic polymer into monomeric fermentable sugars which are carbohydrate by nature can efficiently convert into biofuels. However, higher production costs of these enzymes with moderate activity-based stability are the main obstacles to making cellulase-based applications sustainably viable, and this has necessitated rigorous research for the economical availability of this process. Using water hyacinth (WH) waste leaves as the substrate for cellulase production under solid state fermentation (SSF) while treating the fermentation production medium with CuO (cupric oxide oxide) bionanocatalyst have been examined as ways to make fungal cellulase production economically feasible. Herein, a sustainable green synthesis of CuO bionanocatalyst has been performed by using waste leaves of WH. Through XRD, FT-IR, SEM, and TEM analysis, the prepared CuO bionanocatalyst's physicochemical properties have been evaluated. Furthermore, the effect of CuO bionanocatalyst on the temperature stability of raw cellulases was observed, and its half-life stability was found to be up to 9 h at 65 °C. The results presented in the current investigation may have broad scope for mass trials for various industrial applications, such as cellulosic biomass conversion.


Assuntos
Celulase , Eichhornia , Celulose/metabolismo , Celulase/química , Fermentação , Espectroscopia de Infravermelho com Transformada de Fourier
12.
J Drug Target ; 31(7): 714-724, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37461888

RESUMO

Bone morphogenetic protein (BMP)-9 is considered a member of the transforming growth factor (TGF)ß superfamily. It was first found as an inducer of bone and cartilage formation and then discovered that this factor mediates several physiologic functions and hemostasis. Besides physiological conditions, BMP9 has also been elucidated that it is involved in several pathological situations, especially cancer. In various cancers, dysregulation of BMP9 has raised the issue that BMP9 might play a conflicting role in tumour development. BMP9 binding to its receptors (BMPRs), including ALKs and BMPRII, induces canonical SMAD-dependent and non-canonical PI3K/AKT and MAPK signalling pathways in tumour cells. BMP9, via inducing apoptosis, inhibiting tumour-promoting cell signalling pathways, suppressing epithelial-mesenchymal transition (EMT) process, blocking angiogenesis, and preventing cross-talk in the tumour microenvironment, mainly exerts tumour-suppressive functions. In contrast, BMP9 triggers tumour-supportive signalling pathways, promotes EMT, and enhances angiogenesis, suggesting that BMP9 is also involved in tumour development. It has been demonstrated that modulating BMP9 expression and functions might be a promising approach to cancer treatment. It has also been indicated that evaluating BMP9 expression in cancers might be a biomarker for predicting cancer prognosis. Overall, BMP9 would provide a promising target in cancer management.


Assuntos
Fator 2 de Diferenciação de Crescimento , Neoplasias , Humanos , Fator 2 de Diferenciação de Crescimento/metabolismo , Fator 2 de Diferenciação de Crescimento/farmacologia , Fosfatidilinositol 3-Quinases/metabolismo , Proteínas Morfogenéticas Ósseas , Transdução de Sinais , Neoplasias/diagnóstico , Neoplasias/tratamento farmacológico , Fator de Crescimento Transformador beta , Microambiente Tumoral
13.
J Biomol Struct Dyn ; : 1-12, 2023 Dec 20.
Artigo em Inglês | MEDLINE | ID: mdl-38116764

RESUMO

Within the realm of soluble factors that have emerged as potential targets for therapeutic intervention, the chemokine interleukin-8 (IL-8) has garnered attention as a potential contributor to treatment responses in various cancer types. The utilization of naturally occurring anticancer compounds for treating cancer patients has shown substantial advancements in survival rates across early and advanced stages of the disease. In silico research findings provide support for the application of phytochemicals as potential inhibitors of IL-8, and phytochemicals exhibiting a high binding free energy and crucial interactions display promising anticancer properties, positioning them as candidates for future drug development. Noteworthy phytochemicals such as IMPHY006634 (Isohydnocarpin), IMPHY007957 (Chitranone) and IMPHY013015 (1-Hydroxyrutaecarpine) were predicted to possess inhibitory activity against IL-8, with calculated energies ranging from -9.9 to -9.1 kcal/mol, respectively. Several hydrogen bonds, including common amino acid residues Lys9 and CYS48, were identified. Molecular dynamics calculations conducted on these potent inhibitors demonstrated their stability throughout a 200 ns simulation, as indicated by metrics such as RMSD, RMSF, Rg, SASA, H-bonds, PCA and FEL analysis. Moreover, PASS analysis and adherence of these natural compounds to drug-likeness rules like Lipinski's further strengthen their candidacy. Considering these calculations and various parameters, these three prominent natural compounds emerge as promising candidates for anti-IL-8 therapy in the management of cancer.Communicated by Ramaswamy H. Sarma.

14.
Plast Reconstr Surg Glob Open ; 11(12): e5497, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38145150

RESUMO

Background: The cosmetic procedure is a treatment modality for improving the appearance of a person, and it may involve either surgical or nonsurgical interventions. The number of women who undergo cosmetic surgery in Saudi Arabia has increased dramatically. In fact, the reasons for the increase in the number of cosmetic procedures include the growth impact of social media and the pursuit of perfection. The study aimed to determine the level of acceptance of cosmetic surgery among young Saudi women, and the factors influencing their decisions. Methods: This cross-sectional study was conducted among literate Saudi women during March 2023 to April 2023. A self-reported questionnaire was used, which investigated the demographics, acceptance, and information about cosmetic surgery and social media. Results: A total of 1685 female participants were included in this study: 62.6% were students, 73.6% were single, and 65.8% were aged 18-23 years. The levels of acceptance were high among 38.9% of the participants, and the level of acceptance was significantly affected by age (P = 0.0001), social status (P = 0.0001), work (P = 0.0001), education (P = 0.001), and income (P = 0.001). Up to 86.1% of the participants had not undergone cosmetic surgery, and the reasons for undergoing surgery commonly included dissatisfaction with appearance and social media. Conclusions: The acceptance of cosmetic surgery in this study was low, and it was affected by several demographics of the participants. For instance, social media played a crucial role in driving women to undergo such procedures.

15.
Cureus ; 15(11): e49739, 2023 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-38161948

RESUMO

BACKGROUND: Body dysmorphic disorder (BDD) is a common disorder that consists of a distressing or impairing preoccupation with imagined or slight defects in appearance. In dentistry, those patients will have unrealistic expectations and usually will be unsatisfied with the outcomes of dental treatment. This study investigated the prevalence of BDD and its associated factors among dental patients. MATERIAL AND METHODS: In this cross-sectional survey-based study, a purposive sample was used to recruit adult patients seeking dental treatment in private and public facilities. Data was collected using the validated Arabic version of the Cosmetic Procedure Screening Questionnaire (COPS) for Body Dysmorphic Disorder, a validated nine-item self-administrated instrument that is scored from zero (least impaired) to five (most impaired). Chi-Square, Mann-Whitney U, and Fisher's Exact tests were used to compare the associations between the study variables and BDD. RESULTS: A total of 507 patients responded to the questionnaire. The prevalence of BDD was 34.1%. The average age of the participants was 35.2 years; the majority were males 290 (57%) and Saudis 436 (86%) with a college education 304 (60%). None of the demographics was associated with BDD but the type of treatment was significantly associated with BDD with teeth crowning and restorations. CONCLUSION: This study provides insights into the prevalence of BDD and its associated factors among dental patients in Eastern Saudi Arabia. The findings highlight the need for further research to better understand the factors contributing to the development of BDD and to guide prevention and intervention strategies in dental settings.

16.
ACS Omega ; 8(24): 21696-21708, 2023 Jun 20.
Artigo em Inglês | MEDLINE | ID: mdl-37360438

RESUMO

The present study analyzes the efficacy of the ethanolic extract of C. papaya leaves (ECP) against HgCl2-induced nephrotoxicity. The effects on the biochemical and percentage of body and organ weight against HgCl2-induced nephrotoxicity in female Wistar rats were studied. Wistar rats were divided into five groups with six animals in each group: control, HgCl2 (2.5 mg/kg b.w.), N-acetylcysteine (NAC 180 mg/kg) + HgCl2, ECP (300 mg/kg b.w.) + HgCl2, and ECP (600 mg/kg) + HgCl2 groups. After 28 days of study, animals were sacrificed on the 29th day to harvest the blood and kidneys for further analysis. The effect ECP was analyzed by immunohistochemistry (NGAL) and real-time PCR (KIM-1 and NGAL mRNA) in HgCl2-induced nephrotoxicity. The results revealed that the HgCl2 group showed prominent damage in the proximal tubules and glomerulus of nephrons and enormous expression of NGAL in immunohistochemistry and KIM-1 and NGAL in real-time PCR compared to the control group. The simultaneous pretreatment with NAC (180 mg/kg) and ECP (600 and 300 mg/kg) reduced renal damage and expression of NGAL in immunohistochemistry and KIM-1 and NGAL gene in real-time PCR. This study attests to the nephroprotective effect of ECP against HgCl2-induced toxicity.

17.
ACS Omega ; 8(51): 48625-48649, 2023 Dec 26.
Artigo em Inglês | MEDLINE | ID: mdl-38162753

RESUMO

Breast cancer (BC) is a malignant neoplasm that begins in the breast tissue. After skin cancer, BC is the second most common type of cancer in women. At the end of 2040, the number of newly diagnosed BC cases is projected to increase by over 40%, reaching approximately 3 million worldwide annually. The hormonal and chemotherapeutic approaches based on conventional formulations have inappropriate therapeutic effects and suboptimal pharmacokinetic responses with nonspecific targeting actions. To overcome such issues, the use of nanomedicines, including liposomes, nanoparticles, micelles, hybrid nanoparticles, etc., has gained wider attention in the treatment of BC. Smaller dimensional nanomedicine (especially 50-200 nm) exhibited improved in vivo effectiveness, such as better tissue penetration and more effective tumor suppression through enhanced retention and permeation, as well as active targeting of the drug. Additionally, nanotechnology, which further extended and developed theranostic nanomedicine by incorporating diagnostic and imaging agents in one platform, has been applied to BC. Furthermore, hybrid and theranostic nanomedicine has also been explored for gene delivery as anticancer therapeutics in BC. Moreover, the nanocarriers' size, shape, surface charge, chemical compositions, and surface area play an important role in the nanocarriers' stability, cellular absorption, cytotoxicity, cellular uptake, and toxicity. Additionally, nanomedicine clinical translation for managing BC remains a slow process. However, a few cases are being used clinically, and their progress with the current challenges is addressed in this Review. Therefore, this Review extensively discusses recent advancements in nanomedicine and its clinical challenges in BC.

18.
Saudi J Biol Sci ; 29(7): 103329, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35668728

RESUMO

To understand the effectual role of COVID-19 vaccination, we must analyze its effectiveness in dampening the disease severity and death outcome in patients who acquire infection and require hospitalization. The goal of this study was to see if there was an association between disease progression in admitted COVID-19 patients and their prior vaccination exposure. A prospective cohort study based on 1640 admitted COVID-19 patients were carried between June 2021 and October 2021. Depending on vaccination exposure they were divided into vaccinated (exposed) and unvaccinated (unexposed) groups, excluding partially vaccinated patients. Disease severity was assessed at admission on severity index scale. Disease progression to mortality or need of mechanical ventilation and survival were taken as outcome. Absolute difference with 95%CI and Risk Ratio were calculated using cross tabulation, Chi square test and multivariable logistic regression analysis. Among 1514 total analyzed cohort (median age, 53 years [IQR, 17,106]; 43.7% from 46 to 65 years of age group, 56.2% males,33.4% with no comorbid factor for disease progression) 369(24.4%) were vaccinated breakthrough cases and 1145(75.6%) were unvaccinated controls. 556(36.7%) progressed to death or mechanical ventilation, 958(63.3%) patients survived and were discharged home. Disease progression to death or mechanical ventilation was significantly associated with decreased likelihood of vaccination (24.9% among vaccinated breakthrough vs 40.5% unvaccinated controls, [Absolute difference -15.6% 95%CI (-10.2% to -20.6%); RR 0.615 95%CI (0.509, 0.744); p <.001]). This association was stronger for old age population and for increase time span between second dose of vaccine and onset of symptoms. There was no statistically significant difference among different types of vaccination and occurrence of outcome when compared to unvaccinated controls (RR 0.607(0.482, 0.763); 0.673(0.339, 1.33) and 0.623(0.441, 0.881) for Inactivated virus vaccine, mRNA and Adenovirus vector-based vaccine respectively. The patients who were fully vaccinated against SARS-COV-2 die or shift to mechanical ventilation less frequently than unvaccinated COVID-19 admitted patients.

19.
Saudi J Biol Sci ; 29(5): 3207-3212, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35844424

RESUMO

The crude aqueous and ethanolic leaf extracts of Coccinia indica were screened for methicillin resistant Staphylococcus aureus (MRSA), multidrug resistant (MDR) Streptococcus pyogenes, Escherichia coli, Candida auris and Trichophyton rubrum. Antibacterial and antifungal activities were assessed by standard disc diffusion and tube dilution methods. The results showed that ethanolic extract inhibited MRSA, C. auris at 250 µg/mL and S. pyogenes at 200 µg/mL comparable to the susceptible antibiotics used as positive controls. There was no observable activity against T. rubrum, while a mild activity was observed with ethanolic extracts over E. coli at higher concentrations which did not turn out to be complete or significant inhibition. Aqueous extract did not exhibit any observable activity over the five organisms tested. Furthermore, the results showed clear cut concentration dependent antibacterial and antifungal activities with additional variation of specific activity over Gram positive and negative bacteria, yeast and filamentous fungi. So, it is evident that ethanolic extract of Coccinia indica could be further escalating for mechanistic studies in the era of multidrug resistance, indigenous preparations from herbs could be a safe choice over clinically challenging organisms.

20.
Dis Markers ; 2022: 9997212, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35132340

RESUMO

Breast cancer is a heterogeneous disease and is the most common and prevalent form of malignancy diagnosed in women. lncRNAs are found to be frequently dysregulated in cancer, and its expression plays a critical role in tumorigenesis. The study included 100 histopathologically confirmed, newly diagnosed untreated patients of invasive ductal carcinoma (IDC) of breast cancer patients and 100 healthy subjects. After blood collection, the serum was separated and total RNA was extracted, cDNA was synthesized using 100 ng of total RNA, and lncRNA (ANRIL, TUG1, UCA1, and HIT) expression was analyzed. Increased ANRIL (3.83-fold), TUG1 (7.64-fold), UCA1 (7.82-fold), and HIT (3.31-fold) expressions were observed in breast cancer patients compared to healthy controls. Relative expression of lncRNAs UCA-1 (p = 0.010) and HIT-1 (p < 0.0001) was significantly elevated in patients with advanced breast cancer stage compared to those with early-stage disease. While lncRNA TUG-1 expression was found to be higher in patients with early-stage tumors than those with advanced-stage tumors (p = 0.06), lncRNA ANRIL showed increased expression in patients with PR positive status (p = 0.04). However, we found a significant difference in lncRNA HIT expression in HER-2 positive breast cancer patients compared to HER-2 negative breast cancer patients (p = 0.005). An increase in the expression of serum lncRNAs ANRIL (p < 0.0001), UCA-1 (p = 0.004), and HIT (p < 0.0001) was observed in the distant organ metastatic breast cancer patients. In the ROC curve concerning lymph node involvement, the sensitivity and specificity of lncRNA HIT were 68% and 58%, respectively (p value = 0.007). In the ROC curve w.r.t. stages of disease, the sensitivity and specificity of lncRNA HIT were 80% and 50%, respectively (p value < 0.0001). Better sensitivity and specificity were observed for lncRNA HIT (sensitivity 91% and specificity 78%; p value < 0.0001) and ANRIL (sensitivity 70% and specificity 60%; p value < 0.0001) w.r.t distant organ metastases.


Assuntos
Neoplasias da Mama/sangue , RNA Longo não Codificante/sangue , Neoplasias da Mama/metabolismo , Feminino , Humanos , Pessoa de Meia-Idade , RNA Longo não Codificante/biossíntese
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA