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1.
BMC Psychol ; 12(1): 253, 2024 May 07.
Artículo en Inglés | MEDLINE | ID: mdl-38715136

RESUMEN

BACKGROUND: Autism spectrum disorder (ASD) is a lifelong neurological condition which results in social skill deficits, communication difficulties, and restrictive and repetitive behaviour. The difficulties associated with parenting children with ASD have been studied extensively, mainly from the perspectives of mothers. The extent of involvement of fathers in the raising of children with ASD has received limited scholarly attention, especially in non-Western contexts such as the United Arab Emirates. OBJECTIVES: This study asked mothers to evaluate the involvement of fathers in the development of children with ASD. METHODS: In all, 240 mothers completed the Fathers' Involvement in Development and Rehabilitation Scale, designed based on a review of literature on the construct of involvement, namely attitude, participation in training, and support domains. The data were subjected to computation of mean scores, multivariate analysis of variance, hierarchical regression, and moderation analyses. RESULTS: The results suggested that fathers held positive attitudes and provided substantial support to their children with ASD. However, mothers were ambivalent regarding the participation of fathers in training to support the development of their children. Differences were also observed between participants according to marital status, location, child gender, and ASD severity. CONCLUSION: Recommendations for targeted training for fathers and other study implications are discussed.


Asunto(s)
Trastorno del Espectro Autista , Padre , Madres , Responsabilidad Parental , Humanos , Trastorno del Espectro Autista/psicología , Emiratos Árabes Unidos , Masculino , Femenino , Madres/psicología , Adulto , Padre/psicología , Niño , Responsabilidad Parental/psicología , Relaciones Padre-Hijo , Preescolar , Persona de Mediana Edad
2.
PLoS One ; 19(5): e0294077, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38776303

RESUMEN

BACKGROUND: Intellectual disability (ID) is a lifelong condition characterized by individuals' inability to perform cognitive tasks and participate in daily living activities. While parenting children with ID has been reported to be demanding, studies draw mainly on mothers. In contexts such as the United Arab Emirates (UAE), there is little literature on fathers' involvement in raising children with IDs. OBJECTIVES: The purpose of this study was to explore, from the perspectives of mothers, the extent of fathers' involvement in raising children with ID in the UAE. METHODS: One hundred and fifty-eight (N = 158) mothers with children with ID completed the fathers' involvement in disability and rehabilitation scale. Mothers who had enrolled their children with ID in special schools or receiving services at rehabilitation centres were invited to participate in this study. The data were subjected to the following analyses: mean computation, multivariate analysis of variance, hierarchical regression, and moderation analysis. RESULTS: The results showed high fatherly support, participation in training, and contribution to the development of their children with ID. However, the mothers' ratings showed the fathers' ambivalence toward parenting children with ID. A relationship was found between attitude and support, as well as marital status and the educational level of mothers, providing insight into the involvement of fathers. CONCLUSION: The study recommends training programs aimed at improving the attitudes of fathers toward raising children with ID and other study implications.


Asunto(s)
Padre , Discapacidad Intelectual , Madres , Esposos , Humanos , Discapacidad Intelectual/psicología , Femenino , Masculino , Madres/psicología , Padre/psicología , Adulto , Niño , Esposos/psicología , Responsabilidad Parental/psicología , Emiratos Árabes Unidos , Adolescente , Persona de Mediana Edad , Preescolar
3.
Front Immunol ; 15: 1348189, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38590525

RESUMEN

Older patients with cancer, particularly those over 75 years of age, often experience poorer clinical outcomes compared to younger patients. This can be attributed to age-related comorbidities, weakened immune function, and reduced tolerance to treatment-related adverse effects. In the immune checkpoint inhibitors (ICI) era, age has emerged as an influential factor impacting the discovery of predictive biomarkers for ICI treatment. These age-linked changes in the immune system can influence the composition and functionality of tumor-infiltrating immune cells (TIICs) that play a crucial role in the cancer response. Older patients may have lower levels of TIICs infiltration due to age-related immune senescence particularly T cell function, which can limit the effectivity of cancer immunotherapies. Furthermore, age-related immune dysregulation increases the exhaustion of immune cells, characterized by the dysregulation of ICI-related biomarkers and a dampened response to ICI. Our review aims to provide a comprehensive understanding of the mechanisms that contribute to the impact of age on ICI-related biomarkers and ICI response. Understanding these mechanisms will facilitate the development of treatment approaches tailored to elderly individuals with cancer.


Asunto(s)
Investigación Biomédica , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos , Neoplasias , Anciano , Humanos , Inhibidores de Puntos de Control Inmunológico/uso terapéutico , Envejecimiento , Neoplasias/tratamiento farmacológico
4.
Linacre Q ; 90(4): 452-471, 2023 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-37974567

RESUMEN

The effects of coronavirus disease 2019 (COVID-19) have been felt globally and in all spheres of life. Developing vaccines was an important milestone in ensuring the protection of lives, but there are concerns about vaccine availability in sub-Saharan African (SSA) countries. The living conditions of persons with disabilities, in particular, in SSA societies have been described as deplorable and unsustainable, and they are at risk of discrimination. Such persons appear to be already struggling to obtain other basic services, and the extent of vaccine accessibility to this population remains unknown. This study aimed to assess the perceptions of persons with disabilities in Ghana of COVID-19 vaccines. Between July 2021 and December 2021, 336 persons with disabilities (hearing, visual, and physical) were recruited from two regions in Ghana. The attitude toward the COVID-19 vaccination scale was adapted for this study. The results showed that persons with disabilities were ambivalent toward vaccination, and differences were observed between participant groups. The background variables found to influence attitude were age, place of residence, educational qualification, gender, and COVID-19 acquisition status. The study concludes with a clarion call to policymakers to expedite public education for persons with disabilities.

5.
Soc Sci Med ; 336: 116231, 2023 11.
Artículo en Inglés | MEDLINE | ID: mdl-37774531

RESUMEN

Communication is pivotal to our societal experiences; therefore, the onset of a communication disorder will negatively affect an individual's social capabilities. However, in sub-Saharan African countries, there is limited public discourse on the development of individuals with communication disorders. From the perspective of critical disability theory, there have been few opportunities for adults with communication disorders to share stories about their experiences and their developmental progress. A semi-structured interview guide was designed to collect data from 23 adults with communication disorders recruited from 10 communities in three districts in a region in Ghana. The findings are thematized under the following criteria: diagnosis and rehabilitation, familial support and impact on development. The study concludes with an invitation to policymakers to prioritize the rehabilitation needs of individuals with communication disorders and a discussion on additional study implications.


Asunto(s)
Trastornos de la Comunicación , Personas con Discapacidad , Adulto , Humanos , Ghana , Trastornos de la Comunicación/rehabilitación , Apoyo Familiar
6.
Glob Med Genet ; 10(3): 205-220, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37565061

RESUMEN

Background Cancer remains a critical global health challenge and a leading cause of mortality. Flavonoids found in fruits and vegetables have gained attention for their potential anti-cancer properties. Fisetin, abundantly present in strawberries, apples, onions, and other plant sources, has emerged as a promising candidate for cancer prevention. Epidemiological studies linking a diet rich in these foods to lower cancer risk have sparked extensive research on fisetin's efficacy. Objective This review aims to comprehensively explore the molecular mechanisms of fisetin's anticancer properties and investigate its potential synergistic effects with other anticancer drugs. Furthermore, the review examines the therapeutic and preventive effects of fisetin against various cancers. Methods A systematic analysis of the available scientific literature was conducted, including research articles, clinical trials, and review papers related to fisetin's anticancer properties. Reputable databases were searched, and selected studies were critically evaluated to extract essential information on fisetin's mechanisms of action and its interactions with other anticancer drugs. Results Preclinical trials have demonstrated that fisetin inhibits cancer cell growth through mechanisms such as cell cycle alteration, induction of apoptosis, and activation of the autophagy signaling pathway. Additionally, fisetin reduces reactive oxygen species levels, contributing to its overall anticancer potential. Investigation of its synergistic effects with other anticancer drugs suggests potential for combination therapies. Conclusion Fisetin, a bioactive flavonoid abundant in fruits and vegetables, exhibits promising anticancer properties through multiple mechanisms of action. Preclinical trials provide a foundation for further exploration in human clinical trials. Understanding fisetin's molecular mechanisms is vital for developing novel, safe, and effective cancer prevention and treatment strategies. The potential synergy with other anticancer drugs opens new avenues for combination therapies, enhancing cancer management approaches and global health outcomes.

7.
PLoS One ; 18(7): e0289400, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37523398

RESUMEN

BACKGROUND: Tongue strength and endurance in adults have been extensively studied, but data on these parameters in young children remain largely unavailable. AIMS: This study aimed to collect normative objective tongue strength and endurance data from a pediatric population in the United Arab Emirates (UAE) and to examine the effects of age and sex on these parameters. METHODS: This normative study included a total of 65 typically developing (TD; n = 36) children and children with idiopathic speech sound disorders (ISSDs; n = 29). The participants were assigned to four age groups (range: 3-8 years) and stratified by sex. Data on their tongue strength and endurance were collected using the Iowa Oral Performance Instrument. RESULTS: Tongue strength scores and endurance time increased with age in both the TD and ISSD groups. Sex had no statistically significant effects on tongue strength or endurance in either group. Furthermore, tongue strength and endurance time scores were higher in the TD group than in the ISSD group. CONCLUSIONS: The data obtained in this study would add important normative data to the database of standardized measurements for maximal strength and endurance scores in the pediatric population of the UAE. Future research is encouraged to collect additional data that can help healthcare professionals objectively evaluate children with feeding, swallowing, and speech sound production difficulties.


Asunto(s)
Fuerza Muscular , Trastorno Fonológico , Adulto , Humanos , Niño , Preescolar , Emiratos Árabes Unidos/epidemiología , Deglución , Lengua
8.
Int J Dev Disabil ; 69(4): 555-567, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37346256

RESUMEN

The use of interactive technologies has been demonstrated to enhance verbal and non-verbal communication, as well as the social interaction tendencies of children with Autism Spectrum Disorder (ASD). We examined effects of using Virtual Voice Assistant (VVAs) in children with ASD with respect to two outcomes: speech skills and social interaction skills. A single-case study included three children with ASD (4-11 years old) that utilized VVAs for three months. Pre- and post-intervention questionnaires and semi-structured interviews were used to measure the communication and social interaction skills of the participating children. Participant One, Two and Three showed improvement in the number of correct words produced the VVA intervention. All participants showed increases in social interactions in the intervention phase. Overall, the results showed that the VVAs had positive effects on the speech and social interaction skills of autistic children. The findings demonstrate that children with ASD may benefit from VVAs to improve their communication skills.

9.
Biomed Pharmacother ; 162: 114356, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37040673

RESUMEN

Mesenchymal stem cells (MSCs) are multipotent stromal cells that can differentiate into a range of cell types, including osteoblasts, chondrocytes, myocytes, and adipocytes. Multiple preclinical investigations and clinical trials employed enhanced MSCs-dependent therapies in treatment of inflammatory and degenerative diseases. They have demonstrated considerable and prospective therapeutic potentials even though the large-scale use remains a problem. Several strategies have been used to improve the therapeutic potency of MSCs in cellular therapy. Treatment of MSCs utilizing pharmaceutical compounds, cytokines, growth factors, hormones, and vitamins have shown potential outcomes in boosting MSCs' stemness. In this study, we reviewed the current advances in enhancing techniques that attempt to promote MSCs' therapeutic effectiveness in cellular therapy and stemness in vivo with potential mechanisms and applications.


Asunto(s)
Trasplante de Células Madre Mesenquimatosas , Células Madre Mesenquimatosas , Diferenciación Celular , Células Madre Mesenquimatosas/metabolismo , Tratamiento Basado en Trasplante de Células y Tejidos , Péptidos y Proteínas de Señalización Intercelular/metabolismo , Citocinas/metabolismo , Trasplante de Células Madre Mesenquimatosas/métodos
10.
Heart Fail Rev ; 28(5): 1091-1100, 2023 09.
Artículo en Inglés | MEDLINE | ID: mdl-37017817

RESUMEN

Major depression (MD) is prevalent in patients with heart failure (HF) and contributes to increased risk of hospitalization and mortality. The implementation of cognitive behavioral therapy (CBT) has become a key strategy for treating HF patients' depression. We performed a comprehensive literature search for studies that evaluated the efficacy of adjunctive CBT compared to the standard of care (SOC) in HF patients with MD. The primary outcome was the depression scale (post-intervention and by the end of follow-up). The secondary outcomes were the quality of life (QoL), self-care scores, and 6-min walk test distance(6-MW). The standardized mean difference (SMD) and corresponding 95% confidence intervals (CIs) were calculated using the random-effects model. A total of 6 RCTs with 489 patients (244 in the CBT group and 245 in the SOC group) were included. As compared to the SOC, CBT was associated with a statistically significant improvement in the post-interventional depression scale (SMD: -0.45, 95%CI: -0.69, -0.21; P < 0.01) and by the end of follow-up (SMD: -0.68, 95%CI: -0.87, -0.49; P < 0.01). Furthermore, CBT significantly improved the QoL (SMD: -0.45, 95%CI: -0.65, -0.24; P < 0.01). However, there were no differences in the self-care scores (SMD: 0.17, 95%CI: -0.08, 0.42; P = 0.18) or in 6-MW (SMD: 0.45, 95%CI: -0.39, 1.28; P = 0.29) between the two groups. According to our meta-analysis of published clinical studies, CBT may be more effective than standard therapy at enhancing depression scores and quality of life. To assess the long-term clinical effects of CBT in heart failure patients, larger and more powerful RCTs are required.


Asunto(s)
Terapia Cognitivo-Conductual , Insuficiencia Cardíaca , Humanos , Calidad de Vida , Depresión/etiología , Depresión/terapia , Hospitalización , Insuficiencia Cardíaca/complicaciones , Insuficiencia Cardíaca/terapia
11.
Ther Hypothermia Temp Manag ; 13(4): 160-169, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37074118

RESUMEN

In the setting of out-of-hospital cardiac arrest, therapeutic hypothermia (TH) has been shown to improve clinical outcomes. However, trials showing the advantage of TH did not include patients with cardiogenic shock (CS). We performed a comprehensive literature search for studies that evaluated the efficacy and safety of adjunctive TH compared with the standard of care (SOC) in patients with CS. The primary outcome was the mortality rate (in-hospital, short-, and mid-term). The secondary outcomes were the TH-related complications, duration of Intensive Care Unit (ICU) stay, duration of mechanical ventilation (MV-days), and improvement in cardiac function. Relative risk (RR) or the standardized mean difference (SMD) and corresponding 95% confidence intervals (CIs) were calculated using the random-effects model. A total of 7 clinical studies (3 RCTs included), and 712 patients (341 in the TH group and 371 in the SOC group) were included. As compared with the SOC, TH was not associated with a statistically significant improvement in the in-hospital (RR: 0.73%, 95% CI: 0.51-1.03; p = 0.08), short-term (RR: 0.90%, 95% CI: 0.75-1.06; p = 0.21), or mid-term (RR: 0.93%, 95% CI: 0.78-1.10; p = 0.38) mortality rates. Despite the improvement in the cardiac function in the TH group (SMD: 1.08, 95% CI: 0.02-2.1; p = 0.04), the TH strategy did not significantly shorten the MV days, or the ICU stay (p-values >0.05). Finally, there was a trend toward higher risks for infection, major bleeding, and the need for blood transfusion in the TH group. According to our meta-analysis of published clinical studies, TH is not beneficial in patients with CS and has a marginal safety profile. Larger-scale RCTs are needed to further clarify our results.


Asunto(s)
Hipotermia Inducida , Hipotermia , Paro Cardíaco Extrahospitalario , Humanos , Choque Cardiogénico/diagnóstico , Choque Cardiogénico/terapia , Hipotermia/terapia , Hipotermia Inducida/efectos adversos , Hipotermia Inducida/métodos , Respiración Artificial , Paro Cardíaco Extrahospitalario/terapia
13.
Front Oncol ; 13: 1099696, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36798830

RESUMEN

Interleukin-34 (IL-34) is a cytokine that is involved in the regulation of immune cells, including macrophages, in the tumor microenvironment (TME). Macrophages are a type of immune cell that can be found in large numbers within the TME and have been shown to have a role in the suppression of immune responses in cancer. This mmune suppression can contribute to cancer development and tumors' ability to evade the immune system. Immune checkpoint inhibitors (ICIs) are a type of cancer treatment that target proteins on immune cells that act as "checkpoints," regulating the activity of the immune system. Examples of these proteins include programmed cell death protein 1 (PD-1) and cytotoxic T-lymphocyte-associated protein 4 (CTLA-4). ICIs work by blocking the activity of these proteins, allowing the immune system to mount a stronger response against cancer cells. The combination of IL-34 inhibition with ICIs has been proposed as a potential treatment option for cancer due to the role of IL-34 in the TME and its potential involvement in resistance to ICIs. Inhibiting the activity of IL-34 or targeting its signaling pathways may help to overcome resistance to ICIs and improve the effectiveness of these therapies. This review summarizes the current state of knowledge concerning the involvement of IL-34-mediated regulation of TME and the promotion of ICI resistance. Besides, this work may shed light on whether targeting IL-34 might be exploited as a potential treatment option for cancer patients in the future. However, further research is needed to fully understand the mechanisms underlying the role of IL-34 in TME and to determine the safety and efficacy of this approach in cancer patients.

14.
Cancer Med ; 12(4): 3931-3951, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36779496

RESUMEN

To get a better understanding of the genetic basis of primary signet ring cell carcinoma (SRCC) of the bladder, which is highly rare and not yet explored. First, by using immunohistochemistry to find histological pathological characteristics. Second, a massively parallel whole-exome sequencing (WES) was performed on a 58-year-old male patient who had painless macroscopic hematuria and was pathologically diagnosed with primary SRCC of the bladder, followed by comparing with genes of ordinary urothelial cancer (UC) from TCGA. Furthermore, a population-based analysis using the SEER database was performed to investigate the prognosis (SRCC vs. UC). We identified 63 copy number variations (CNVs) with gain counts and 181 CNVs with loss counts. Totally 4515 mutations were discovered in C > T with a success rate of greater than 89%. The most frequently mutated pathway was RTK-RAS which has 85 genes involved in carcinogenic signaling. Final screening on predisposing genes is performed after filtering based on ACMG. Moreover, several driver genes, including NBN, KCTD18, SPATA13, ANKRD36, OR2L5, MALRD1, and LSMEM1, were detected. Sanger sequencing of germline DNA revealed the presence of a mutant base A/G of OR2L5 in the sequence, which was discovered for the first time in primary SRCC of the bladder. Furthermore, the immunohistochemical profile showed that primary SRCC of the bladder were positive for CK7, CK20, GATA-3, and expression of CK(AE1/AE2), EMA, and Ki67. In the SEER-based study, the patients with primary SRCC of the bladder got a worse prognosis compared to those with UC with median months overall survival (OS) 14 vs. 41, respectively, P = 0001, even after adjusting the variables in the Cox regression model, the SRCC of the bladder showed worse survival HR = 1.119, 95% CI = (1.081-1.328), P = 0.0001. These results imply that suppression of potential driver mutations may be a viable adjuvant treatment approach for primary SRCC in the bladder in place of standard chemotherapy, a possibility that warrants further clinical investigation.


Asunto(s)
Carcinoma de Células en Anillo de Sello , Carcinoma de Células Transicionales , Neoplasias de la Vejiga Urinaria , Humanos , Masculino , Persona de Mediana Edad , Variaciones en el Número de Copia de ADN , Biología Molecular , Mutación , Vejiga Urinaria/patología , Neoplasias de la Vejiga Urinaria/patología
15.
Artículo en Inglés | MEDLINE | ID: mdl-36674207

RESUMEN

Parenting children with disabilities has consistently been reported to be associated with stress, and even more so among mothers who are primary caregivers. In non-Western contexts such as the United Arab Emirates (UAE), there is a dearth of research on maternal mental health in relation to raising children with disabilities and related mitigation strategies. During the COVID-19 pandemic (2020-2021), the Federal Government of the UAE used the Save the Child's Stress Checklist to assess the stress levels of 635 mothers who were raising children with disabilities in the northern part of the country. In the pre-test, an estimated 6% (36/635) of the mothers were found to be experiencing high levels of stress. Consequently, virtual stress management training was conducted, and 12 of the 36 mothers completed the full training. Wilcoxon's ranked test showed a reduction in their total, physical, emotional and cognitive stress at the end of the training. This study demonstrates the pressing need for ongoing training programmes to improve the mental health of mothers of children with disabilities in the UAE and similar contexts.


Asunto(s)
COVID-19 , Niños con Discapacidad , Niño , Femenino , Humanos , Emiratos Árabes Unidos/epidemiología , Pandemias , Madres/psicología
16.
J Ethnopharmacol ; 300: 115703, 2023 Jan 10.
Artículo en Inglés | MEDLINE | ID: mdl-36096347

RESUMEN

ETHNOPHARMACOLOGICAL RELEVANCE: Integrated Chinese herbal medicine (CHM) and Western Medicine (WM) treatments have been used for primary hypertension (PHTN) patients in China. Currently, there are many randomized control trials (RCTs) published regarding the effect of CHM and WM on PHTN, which indicated that combining Chinese with WM was effective and safe for PHTN when compared with WM alone, but the quality of evidence was insufficient, and there is no clear information and summary are available for these RCTs assessing the effectiveness of CHM with WM versus WM in patients with PHTN. OBJECTIVES: This systematic study and meta-analysis aimed to evaluate the effectiveness and safety of CHM combined with WM in comparison with WM in reducing systolic and diastolic blood pressure for patients with PHTN. METHODS: The information of this study was searched from electronic databases (PubMed, COCHRANE, EMBASE, Ovid, CNKI, VIP, Wanfang, and CBM). The markedly effective and effective terms were according to Guiding Principles for Clinical Research of New Chinese Medicines. Two investigators independently reviewed each trial. The Cochrane risk of bias assessment tool was used for quality assessment, and RevMan 5.4 was used for meta-analysis. RESULTS: In this study, a total of 29 studies that included 2623 patients were recorded. The study results displayed that the clinical effectiveness in the treatment of hypertension patients from the integrated medicines was considerably higher than that with WM alone, clinical effective (RR 1.23, 95% CI [1.17, 1.30], P < 0.00001), and markedly effective (ME) in the patients (RR 1.66, 95% CI [1.52, 1.80], and P < 0.00001). Random effect in SBP (MD 7.91 mmHg,[6.00, 983], P < 0.00001) and DBP (MD 5.46 mmHg, [3.88, 6.43], P < 0.00001), a subgroup analysis was carried out based on the type of intervention, duration of treatment, and CHM formulas that showed significance. Furthermore, no severe side effects were reported, and no patients stopped treatment or withdrawal due to any severe adverse events. CONCLUSION: Compared to WM alone, the therapeutic effectiveness of CHM combined with WM is significantly improved in the treatment of hypertension. Additionally, CHM with WM may safely and efficiently lower systolic blood pressure (SBP) and diastolic blood pressure (DBP) in individuals with PHTN. However, rigorous randomized controlled trials with a large sample, high quality, long duration of treatment, and follow-up are recommended to strengthen this clinical evidence.


Asunto(s)
Medicamentos Herbarios Chinos , Hipertensión , Medicina Integrativa , Antihipertensivos/uso terapéutico , Medicamentos Herbarios Chinos/efectos adversos , Humanos , Hipertensión/inducido químicamente , Hipertensión/tratamiento farmacológico , Ensayos Clínicos Controlados Aleatorios como Asunto
17.
J Family Med Prim Care ; 11(8): 4588-4594, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-36352996

RESUMEN

Introduction: Structured undergraduate research, whether mandatory or elective, provides undergraduate students with a unique opportunity to develop their research skills. However, the majority of the students undertake individual research projects rather than working in a group. This study explores the perceived benefits and challenges of fostering research focused communities of practice at a specialised health sciences university in Riyadh, Saudi Arabia. Methods: This cross-sectional study was conducted at the College of Medicine, King Saud bin Abdulaziz University for Health Sciences (KSAU-HS) Riyadh, Saudi Arabia. The study was approved by the Ethics Committee at the King Abdullah International Medical Research Center (KAIMRC). A self-administered questionnaire was developed that assessed the perceived benefits and challenges of doing research in groups. Data were collected using a mixture of a dichotomous and a 5-point Likert scale and were analysed using Statistical Program for Social Scientists (SPSS). Results: Of the 380 medical students invited to participate in this study, 307 completed the questionnaire, with a response rate of 80.7%. The majority of the medical students (87%) agreed on the importance of teamwork in conducting medical research. Almost all medical students (96%) believed patience and tolerance were required to make the team successful. Significant differences were found between junior and senior medical students regarding their perceived benefits (P-value = 0.0001) and challenges (P-value = 0.0007). Conclusion: Although most of the students believed that doing research in groups is essential and that working within such groups enhances their research knowledge, forming these research groups was not without problems. The need for patience and tolerance to keep the group together, the issue of free-riders and the difficulties related to which research group to join were some of the challenges students encountered.

18.
J Cell Mol Med ; 26(24): 5984-5997, 2022 12.
Artículo en Inglés | MEDLINE | ID: mdl-36420658

RESUMEN

According to our prior findings, ARID1A expression is decreased in colon cancer, which has a poor prognosis. In this study, we investigated the ARID1A-VIM/CDH1 signalling axis's role in colon cancer proliferation and migration. The differentially expressed genes in cells that might be controlled by ARID1A were discovered by a database screening for ARID1A knockout. qPCR was used to analyse ARID1A and EMT markers expression levels in colon cancer. We utilized siRNA RID1A to explore the influence of ARID1A silencing on EMT in CRC cells. The function of ARID1A in the colon was investigated utilizing the wound healing, transwell and CCK-8 WST- assays. The molecular mechanism by which ARID1A regulates VIM and CDH1 was elucidated using chip-qPCR. Numerous genes involved in EMT were dysregulated in the absence of ARID1A. VIM expression increased in cells lacking ARID1A expression and vice versa. Many COAD samples with high ARID1A mRNA expression had low VIM mRNA expression, despite the relevance. CDH1 gene was positively correlated with ARID1A. Moreover, siRNA-ARID1A-transfected cells accelerated cell migration and invasion and increased cell proliferation rate in vitro. Chip-qPCR analysis showed that ARID1A binds to the promoters of both genes and changes their expression in colon cancer. ARID1A inactivation is associated with VIM activation and CDH1 suppression, which might serve as crucial molecules influencing COAD prognosis, accelerate tumour progression, and shorten patients' survival time, and promote metastases of COAD. Thus, depletion of ARID1A can be therapeutically exploited by targeting downstream effects to improve cancer treatment-related outcomes.


Asunto(s)
Neoplasias del Colon , Transición Epitelial-Mesenquimal , Humanos , Regulación hacia Abajo/genética , Transición Epitelial-Mesenquimal/genética , Regulación Neoplásica de la Expresión Génica , Línea Celular Tumoral , Proliferación Celular/genética , Movimiento Celular/genética , Neoplasias del Colon/genética , ARN Interferente Pequeño/genética , ARN Mensajero , Proteínas de Unión al ADN/genética , Factores de Transcripción/genética , Antígenos CD/genética , Cadherinas/genética
19.
Cells ; 11(22)2022 11 17.
Artículo en Inglés | MEDLINE | ID: mdl-36429070

RESUMEN

Background: It is anticipated that there will be a large rise in the number of tumor diagnoses and mortality in those aged 65 and older over the course of upcoming decades. Immune checkpoint inhibitors, often known as ICIs, boost immune system activity by selectively targeting ICI genes. On the other hand, old age may be connected with unfavorable results. Methods: The Cancer Genome Atlas (TCGA) provided gene expression data from ccRCC tissue and key clinical variables. ICI gene databases were applied and verified using the GEO database. Results: We identified 14 ICI genes as risk gene signatures among 528 ccRCC patients using univariate and multivariable cox hazard models, and the elderly group was linked with poor survival. Then, by utilizing a new nomogram method, the TNFSF15 gene and age predicting values were estimated at one, three, and five years (85%, 81%, and 81%), respectively, and our age-related risk score was significant even after multivariable analysis (HR = 1.518, p = 0.009, CI = 1.1102.076). TNFSF15 gene expression was lower in elderly ccRCC patients (p = 0.0001). A negative connection between age and the TNFSF15 gene expression was discovered by correlation analysis (p = 0.0001). The verification of the gene by utilizing GEO (GSE167093) with 604 patients was obtained as external validation that showed significant differences in the TNFSF15 gene between young and elderly patients (p = 0.007). Additionally, the protein-protein interactions of the TNFSF15 gene with other ICI genes and aging-related genes was determined. In addition, the TNFSF15 expression was significantly correlated with pathological stages (p = 0.018). Furthermore, it was discovered that the biological processes of senescence, cellular senescence, the immune system, and many immune cell infiltration and immune function types are all closely tied. Conclusions: Along with the risk score evaluation, the ICI gene TNFSF15 was identified as a tumor suppressor gene related to inequalities in age survival and is associated with pathological stages and different immunity statuses. The aging responses of ccRCC patients and related gene expression need further investigation in order to identify potential therapeutic targets.


Asunto(s)
Carcinoma de Células Renales , Neoplasias Renales , Anciano , Humanos , Carcinoma de Células Renales/metabolismo , Inhibidores de Puntos de Control Inmunológico/farmacología , Inhibidores de Puntos de Control Inmunológico/uso terapéutico , Neoplasias Renales/patología , Genómica , Envejecimiento/genética , Miembro 15 de la Superfamilia de Ligandos de Factores de Necrosis Tumoral
20.
Front Genet ; 13: 914354, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36313455

RESUMEN

Background and Objective: Understanding the tumor microenvironment (TME) and immune cell infiltration (ICI) may help guide immunotherapy efforts for colon cancer (COAD). However, whether ARID1B is truly regulated by hypermethylation or linked to immune infiltration remains unknown. The current work focused on the ARID1B gene expression and methylation in COAD, as well as its relation with ICI. Methods and Results: Multiple tools based on TCGA were used to analyze the differences in the expression of the ARID1B gene, DNA methylation, and its association with various clinicopathological features, somatic mutations, copy number variation, and the prognosis of patients with COAD. According to the analysis results, patients with high mRNA, low methylation levels showed better overall survival than patients with low mRNA, high methylation levels. The correlation analysis of immune cell infiltration and immune checkpoint gene expression showed that the infiltration rates of the main ICI subtypes, cancer-associated fibroblast, and myeloid cells were significantly enriched and correlated with ARID1B in COAD. An association between ARID1B expression and immune infiltration in COAD was found by correlating ICI indicators with ARID1B expression in the immune cell composition of the COAD microenvironment. Notably, M2 chemokines were related to ARID1B expression, while M1 chemokines were not. Conclusion: This study provided evidence that ARID1B may have a role in the pathogenesis of COAD. The specific underlying mechanisms that could be responsible for ARID1B's downregulation in COAD will need to be investigated in the future.

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