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Cancer stem cells (CSCs) are associated with the tumor microenvironment (TME). CSCs induce tumorigenesis, tumor recurrence and progression, and resistance to standard therapies. Indeed, CSCs pose an increasing challenge to current cancer therapy due to their stemness or self-renewal properties. The molecular and cellular interactions between heterogeneous CSCs and surrounding TME components and tumor-supporting immune cells show synergistic effects toward treatment failure. In the immunosuppressive TME, CSCs express various immunoregulatory proteins, growth factors, metabolites and cytokines, and also produce exosomes, a type of extracellular vesicles, to protect themselves from host immune surveillance. Among these, the identification and application of CSC-derived exosomes could be considered for the development of therapeutic approaches to eliminate CSCs or cancer, in addition to targeting the modulators that remodel the composition of the TME, as reviewed in this study. Here, we introduce the role of CSCs and how their interaction with TME complicates immunotherapies, and then present the CSC-based immunotherapy and the limitation of these therapies. We describe the biology and role of tumor/CSC-derived exosomes that induce immune suppression in the TME, and finally, introduce their potentials for the development of CSC-based targeted immunotherapy in the future.
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Células Dendríticas , Exossomos , Inibidores de Checkpoint Imunológico , Imunoterapia , Células-Tronco Neoplásicas , Microambiente Tumoral , Humanos , Exossomos/imunologia , Exossomos/metabolismo , Células-Tronco Neoplásicas/imunologia , Células-Tronco Neoplásicas/efeitos dos fármacos , Células-Tronco Neoplásicas/metabolismo , Células-Tronco Neoplásicas/patologia , Imunoterapia/métodos , Inibidores de Checkpoint Imunológico/farmacologia , Inibidores de Checkpoint Imunológico/uso terapêutico , Microambiente Tumoral/efeitos dos fármacos , Microambiente Tumoral/imunologia , Células Dendríticas/imunologia , Células Dendríticas/metabolismo , Receptores de Antígenos Quiméricos/imunologia , Neoplasias/imunologia , Neoplasias/terapia , Vacinas Anticâncer/imunologia , AnimaisRESUMO
AIM: This study aims to assess the prevalence of asthma triggers and control status among pediatric asthmatic patients in Saudi Arabia. METHODS: From October 2015 to March 2016, an Arabic version of the Asthma Trigger Inventory questionnaire and asthma control test (ACT) were distributed to 200 parents of children diagnosed with asthma at the pulmonary clinic of King Fahad Medical City in Riyadh, Saudi Arabia. Data were collected and analyzed using the Statistical Package for Social Sciences (SPSS) software version 29. Descriptive statistics of the participants were presented in frequencies, percentages, means, and standard deviations for categorical variables. RESULTS: The survey data revealed that the most prevalent asthma triggers among pediatric asthmatic children in Saudi Arabia were Arabic incense (Bakhour) with a mean score of 3.76 (±1.3), followed by being excited 3.70 (±1.5), and stress at home 3.58 (±1.4). Furthermore, the degree of asthma control among children with asthma in Saudi Arabia was 72.0% with a mean score of 17.7 (±4.7) for the ACT, indicating partial degree of asthma. CONCLUSIONS: Arabic incense (Bakhour) and psychological stimuli emerged as significant determinants of asthma triggers in Saudi Arabian children diagnosed with asthma. Further studies are warranted to elucidate the physiological mechanisms underpinning the response to Arabic incense (Bakhour).
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OBJECTIVE: This study aims to assess the prevalence of needle phobia among Saudi and Egyptian adult populations. In addition, underlying causes and strategies that can be utilized to address needle fear were investigated. METHODS: A cross-sectional online survey study was conducted in Saudi Arabia and Egypt between 1 May and 30 June 2023. Participants aged 18 years and above and living in Saudi Arabia and Egypt were eligible to complete the survey. Participants were invited to participate in this study through social media platforms (Facebook, X, Snapchat, and Instagram). A convenience sampling technique was used to recruit the study participants. A 21-item questionnaire consisting of four sections including a Likert scale score was used to answer the research objectives. Numeric data were presented as mean ± SD. For categorical variables, percentages were used. Comparison between groups were made by Student's t-test or Mann Whitney test according to data distribution. Chi squared tests for categorical values were conducted. A binary logistic regression analysis was conducted to investigate factors associated with needle phobia. RESULTS: A total of 4065 participants were involved in this study (Saudi Arabia: 2628 and Egypt: 1437). Around one-third of the study participants (36.5%) confirmed that they have needle phobia. Most of the study participants (81.1%) reported that they have had needle phobia since they were under 18 years of age. Pain, general anxiety, and fear of making a mistake during the procedure were the most commonly reported contributors for fear of needles during or before a medical procedure. Around 15.8% of the study participants reported that they have tried to get rid of phobia from needles. Non-surgical alternatives (such as oral medications and patches) and using smaller/thinner needles were the most commonly reported interventions that reduced fear of needles. Binary logistic regression analysis identified that females, those who are aged (41-50 years), widowed, those with bachelor's degrees and higher education, and those unemployed were more likely to have needle phobia compared to others. CONCLUSION: Our study highlighted the high prevalence of needle fear within an adult population in Egypt and Saudi Arabia. Females, those who are aged (41-50 years), those widowed, those with higher education degrees, those unemployed, those working in the health sector and people with low income were more likely to have needle phobia compared to others.
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Agulhas , Transtornos Fóbicos , Humanos , Arábia Saudita/epidemiologia , Feminino , Transtornos Fóbicos/epidemiologia , Masculino , Adulto , Egito/epidemiologia , Estudos Transversais , Prevalência , Pessoa de Meia-Idade , Adulto Jovem , Adolescente , Inquéritos e QuestionáriosRESUMO
Background: Osteoporosis "OP" is classified as one of the most serious health conditions worldwide. OP increases the skeletal fracture risk by 35%, particularly at hip, spine, and wrist joints. Healthcare professionals should be aware of OP clinical signs and have good knowledge while managing all patients. Objectives: This study aims to investigate the current level of osteoporosis knowledge and awareness among physical therapy providers in Saudi Arabia. Methods: One hundred and sixty-eight physical therapy providers participated in this cross-sectional electronic survey from February to July of 2021. The participants completed the Osteoporosis Knowledge Assessment Tool questionnaire (OKAT). Descriptive analysis was utilized to assess the current level of osteoporosis knowledge among physical therapy providers. Results: Among the 168 participants, 55% (n = 92) were over 31 years old and 45% (n = 76) were 30 years old or under. The majority of participants 37% (n = 62) had more than 10 years of experience, 45% (n = 76) mainly treat orthopedic conditions, and 70% (n = 117) live in the western region. The results showed that 67.9% (n = 114) of participants had good knowledge about osteoporosis, while 19.6% (n = 33) had poor knowledge, and only 12.5% (n = 21) had excellent knowledge. Conclusion: Physical therapy providers in Saudi Arabia have a good knowledge of osteoporosis. The overall OP preventive measure knowledge questions were poor. It is crucial for physical therapy providers to act appropriately to prevent falls and mitigate any potential risks.
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Conhecimentos, Atitudes e Prática em Saúde , Osteoporose , Humanos , Adulto , Arábia Saudita/epidemiologia , Estudos Transversais , Osteoporose/diagnóstico , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Nonadherence to therapies and psychological disorders are associated with poor asthma control. This study aims to assess the prevalence of anxiety and depressive symptoms, asthma control, and adherence to inhalers and to investigate whether there is an association of anxiety and depressive symptoms with adherence to inhalers and asthma control. METHODS: We measured anxiety and depressive symptoms using the Hospital Anxiety and Depression Scale in patients with asthma. Asthma Control Test and the 10-Item Test of Adherence to Inhalers Scale were used to assess levels of asthma control adherence to inhalers, respectively. Univariate and multivariate regression models assessed the associations of anxiety and depressive symptoms with adherence to inhalers and asthma control. RESULTS: A total of 287 patients completed the study, of whom 72% were female. The mean ± SD age and body mass index of our study population were 44 ± 13 years and 29 ± 7.2 kg/m2, respectively. Poor adherence to inhaler use was highly prevalent (49.8%; 95% CI: 43.8 to 55.7). The prevalence of anxiety, depression and poor asthma control was 27.2% (95% CI: 22.1 to 32.7), 20.9% (95% CI: 16.3 to 26.1), and 22.7% (95% CI: 17.9 to 27.9), respectively. We found a negative relationship between asthma control and anxiety, and depressive symptoms (adjusted ß: -0.25; 95% CI: -0.36 to -0.14; p < 0.001 and adjusted ß: -0.29; 95% CI: -0.40 to -0.18; p < 0.001, respectively). A negative relationship was also observed between adherence to inhalers and anxiety and depressive symptoms (adjusted ß: -0.34; 95% CI: -0.46 to -0.22; p < 0.001 and adjusted ß: -0.36; 95% CI: - 0.48 to - 0.24; p < 0.001, respectively). CONCLUSIONS: The high prevalence of uncontrolled asthma symptoms and poor adherence to inhalers and their impact on anxiety and depression levels among patients with asthma point to the need for early screening for psychological symptoms and recognition of nonadherence as part of asthma assessment and management plan in primary care in Saudi Arabia to avoid further worsening of asthma symptoms. Further studies are needed to explore the effectiveness of specific psychoeducational interventions and investigate the long-term impact of early psychological symptom detection on asthma outcomes.
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Antiasmáticos , Asma , Humanos , Feminino , Masculino , Estudos Transversais , Antiasmáticos/uso terapêutico , Asma/tratamento farmacológico , Asma/epidemiologia , Asma/psicologia , Adesão à Medicação , Nebulizadores e VaporizadoresRESUMO
Dorstenia psilurus is a widely used plant spice in traditional African medicine to treat pain-related conditions. However, the anti-inflammatory mechanisms underlying this activity and the main active ingredients of D. psilurus have not yet been fully characterized. This study aimed to isolate and identify the main active anti-inflammatory constituents of the D. psilurus extract and to investigate the underlying anti-inflammatory mechanisms in murine macrophages. Chromatographic techniques and spectroscopic data were used for compound isolation and structure elucidation. The Griess reagent method and the ferrous oxidation-xylenol orange assay were used to evaluate the inhibition of NO production and 15-lipoxygenase activity, respectively. Cyclooxygenase activity was assessed using the fluorometric COX activity assay kit, and Th1/Th2 cytokine measurement was performed using a flow cytometer. The results indicated that the extract and fractions of D. psilurus inhibit NO production and proliferation of RAW 264.7 macrophage cells. Bioguided fractionation led to the identification of psoralen, a furocoumarin, as the main bioactive anti-inflammatory compound. Psoralen inhibited NO production and 15-lipoxygenase activity and reduced pro-inflammatory Th1 cytokines (IFN-γ, TNF-α, and IL-2) while increasing the secretion of anti-inflammatory cytokines (IL-4, IL-6, and IL-10) in activated RAW 264.7 macrophage cells. The encouraging results obtained in this study suggest that psoralen-based multiple modulation strategies could be a useful approach to address the treatment of inflammatory diseases.
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Citocinas , Ficusina , Lipopolissacarídeos , Macrófagos , Raízes de Plantas , Animais , Camundongos , Células RAW 264.7 , Citocinas/metabolismo , Macrófagos/efeitos dos fármacos , Macrófagos/metabolismo , Raízes de Plantas/química , Lipopolissacarídeos/farmacologia , Ficusina/farmacologia , Ficusina/química , Células Th1/efeitos dos fármacos , Células Th1/metabolismo , Células Th2/metabolismo , Células Th2/efeitos dos fármacos , Extratos Vegetais/farmacologia , Extratos Vegetais/química , Óxido Nítrico/metabolismo , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/químicaRESUMO
BACKGROUND: This study aimed to assess the knowledge and current practice of using the airway pressure release ventilation (APRV) mode with acute respiratory distress syndrome (ARDS) patients and identify barriers to not using this mode of ventilation among nurses who work in critical areas in Saudi Arabia. METHODS: Between December 2022 and April 2023, a cross-sectional online survey was disseminated to nurses working in critical care areas in Saudi Arabia. The characteristics of the respondents were analyzed using descriptive statistics. Percentages and frequencies were used to report categorical variables. RESULTS: Overall, 1,002 nurses responded to the online survey, of whom 592 (59.1%) were female. Only 248 (24.7%) nurses had ever used APRV mode, whereas only 229 (22.8%) received training on APRV mode. Moreover, 602 (60.0%) nurses did not know whether APRV was utilized in their hospital. Additionally, 658 (65.6%) nurses did not know whether APRV mode was managed using a standard protocol. Prone positioning was the highest recommended intervention by 444 (43.8%) when a conventional MV failed to improve oxygenation in patients with ARDS. 323 (32.2%) respondents stated that the P-high should be set equal to the plateau pressure on a conventional ventilator, while 400 (39.9%) said that the P-low should match PEEP from a conventional ventilator. Almost half of the respondents (446, 44.5%) stated that the T-high should be set between 4 and 6 s, while 415 (41.4%) said that the T-low should be set at 0.4 to 0.8 s. Over half of the nurses (540, 53.9%) thought that the maximum allowed tidal volume during the release phase should be 4-6 ml/kg. Moreover, 475 (47.4%) believed that the maximum allowed P-high setting should be 35 cm H2O. One-third of the responders (329, 32.8%) stated that when weaning patients with ARDS while in APRV mode, the P-high should be reduced gradually to reach a target of 10 cm H2O. However, 444 (44.3%) thought that the T-high should be gradually increased to reach a target of 10 s. Half of the responders (556, 55.5%) felt that the criteria to switch the patient to continuous positive airway pressure (CPAP) were for the patient to have an FiO2 ≤ 0.4, P-high ≤ 10 cm H2O, and T-high ≥ 10 s. Lack of training was the most common barrier to not using APRV by 615 (61.4%). CONCLUSION: The majority of nurses who work in critical care units have not received sufficient training in APRV mode. A significant discrepancy was observed regarding the clinical application and management of APRV parameters. Inadequate training was the most frequently reported barrier to the use of APRV in patients with ARDS.
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INTRODUCTION: Vibrotactile positional therapy (PT) devices are a new treatment modality for positional obstructive sleep apnoea (POSA). This review aimed to determine the effect of vibrotactile PT on the Apnoea Hypopnoea Index (AHI) and the percentage of time spent in the supine position (%Tsupine) in patients with POSA, compared with baseline. Secondary aims were to investigate the effect on daytime sleepiness, quality of life and sleep quality. METHODS: A systematic review and meta-analysis was performed of randomised controlled trials (RCTs) and cohort studies that investigated the effect of vibrotactile PT in POSA patients. Searches were performed via MEDLINE, CENTRAL and Embase up to 29 October 2022. RESULTS: 1119 studies were identified, 18 studies met the inclusion criteria (10 RCTs, 8 cohort studies). The use of vibrotactile PT significantly reduced the AHI at follow-up compared with baseline (mean difference (95% CI) -9.19 events/hour (-11.68 to -6.70); p<0.00001). The mean %Tsupine was also significantly reduced (mean difference (95% CI) -32.79% (-38.75% to -26.83%); p<0.00001). The percentage changes in the AHI and %Tsupine were 43% and 70%, respectively. Secondary outcomes were daytime sleepiness, quality of life and sleep indices. These showed minimal change, although follow-up was short. CONCLUSION: Vibrotactile PT devices are effective in treating POSA; reducing both AHI and %Tsupine. The effect on sleep quality, daytime sleepiness and disease-specific quality of life was minimal. However, there were limited data and follow-up was often brief, meaning that further research is needed to determine the effect of vibrotactile PT on patient-centred outcomes. PROSPERO REGISTRATION NUMBER: CRD42020188617.
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Distúrbios do Sono por Sonolência Excessiva , Apneia Obstrutiva do Sono , Humanos , Avaliação de Resultados em Cuidados de Saúde , Estudos de Coortes , Pressão Positiva Contínua nas Vias Aéreas , Apneia Obstrutiva do Sono/terapiaRESUMO
OBJECTIVE: This study aims to assess beliefs about asthma controller medications among parents of Saudi Arabian children with asthma and the association between these beliefs and medication adherence using the Necessity-Concerns Framework. METHODS: A cross-sectional survey was provided to parents of children with asthma when they brought their children to routine appointments at local public clinics between May 16 and July 10, 2018. Participants electronically filled out validated Arabic versions of the Medication Adherence Reported Scale (MARS) and Beliefs About Medications Questionnaire (BMQ). Descriptive statistics were used to characterize the study participants, while hierarchical linear regression analysis assessed associations between parental beliefs about controller medications and medication adherence. RESULTS: A total of 381 parents of children with asthma completed the study survey. The vast majority (89%) of study participants were non-adherent to their children's prescribed medications while only 11% were adherent. Additionally, our study revealed a significantly positive association between adherence and parents' beliefs in the necessity of the medication (p < .001), with concerns about the adverse effects of medication being negatively associated with parental adherence. A higher mean score for medication adherence was reported among the ambivalent groups compared to the accepting, indifferent, and skeptical groups. CONCLUSIONS: Medication adherence among parents of children with asthma was relatively low. In addition, necessity beliefs were significantly associated with parental adherence to controller medications for their children with asthma. Further studies are warranted to investigate potential factors contributing to poor parental adherence and develop tailored interventions that support parental medication adherence for their asthmatic children.
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INTRODUCTION: The incidence of major trauma in older people is increasing. Frailty is likely to be a factor that influences the outcomes of trauma. We conducted a systematic review aiming to investigate whether frailty affects major trauma outcomes in older people and whether it is more predictive than age. METHODS: Observational studies investigating frailty, major trauma severity and outcomes were eligible. We searched electronic databases (Ovid MEDLINE, PubMed, Ovid EMBASE and CINAHL) from 2010 to 01 January 2023. We used Joanna Briggs Institute software to assess the risk of bias and conduct meta-analyses of the relationships between frailty status and outcomes. We used a narrative synthesis to compare the predictive value of frailty and age. RESULTS: Twelve studies were eligible for meta-analyses. In-hospital mortality (odds ratio (OR) = 1.12, 95% confidence interval (CI) 1.05, 1.19), length of stay (OR = 2.04, 95% CI 1.51, 2.56), discharge to home (OR = 0.58, 95% CI 0.53, 0.63) and in-hospital complications (OR = 1.17, 95% CI 1.10, 1.24) were all associated with frailty. Frailty was found to be a more consistent predictor of adverse outcomes and mortality in older trauma patients than injury severity and age in six studies that reported multivariate regression analysis. DISCUSSION: Older trauma patients with frailty have higher in-hospital mortality rates, prolonged hospital stays, in-hospital complications and adverse discharge disposition. Frailty is a better predictor of adverse outcomes than age in these patients. Frailty status is likely to be a useful prognostic variable in guiding patient management and stratifying clinical benchmarks and research trials.
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Fragilidade , Humanos , Idoso , Prognóstico , Alta do Paciente , Tempo de Internação , Mortalidade Hospitalar , Estudos Observacionais como AssuntoRESUMO
OBJECTIVE: To investigate the prevalence of intensive care unit (ICU) admission and its predictors among hospitalized chronic obstructive pulmonary disease (COPD) patients. METHODS: An observational retrospective study was conducted. All patients with a confirmed diagnosis of COPD according to the GOLD guidelines between 28 and 2020 and 1 March 2023 at Al-Noor Specialist Hospital were included in this study. Patients were excluded if a preemptive diagnosis of COPD was made clinically without spirometry evidence of fixed airflow limitation. Descriptive results were presented as frequency (percentage) for categorical variables and mean (SD) for continuous variables and to estimate prevalence of ICU admission. Predictors of ICU admission among hospitalized COPD patients were determined using logistic regression analysis. A SPSS (Statistical Package for the Social Sciences) version 25 was used to perform all statistical analysis. RESULTS: A total of 705 patients with COPD were included in this study. The mean age was 65.4 (25.3) years. Around 12.4% of the hospitalized patients were admitted to the ICD. Logistic regression analysis identified that older age (OR; 1.92, (1.41-2.62)), smoking (OR; 1.60 (1.17-2.19)), and having specific comorbidities (Hypertension (OR; 1.98 (1.45-2.71)), Diabetes mellitus (OR; 1.42 (1.04-1.93)), GERD (OR; 2.81 (1.99-3.96)), Ischemic heart disease (OR; 3.22 (2.19-4.75)), Obstructive sleep apnea syndrome (OR; 2.14 (1.38-3.33)), stroke (OR; 4.51 (2.20-9.26))) were predictors of ICU admissions among patients with COPD. CONCLUSIONS: Our study found that a step-up approach to inpatient COPD management requires admission to the ICU in 12.4%, for which age, smoking status, cardiovascular, and stroke were important predictors. Further clinical research is needed to provide a validated model that can be incorporated into clinical practice to monitor this patient population during their admission and identify at-risk individuals for early transfer to higher acuity settings and intensive care units.
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Doença Pulmonar Obstrutiva Crônica , Acidente Vascular Cerebral , Humanos , Idoso , Estudos Retrospectivos , Arábia Saudita/epidemiologia , Doença Pulmonar Obstrutiva Crônica/epidemiologia , Doença Pulmonar Obstrutiva Crônica/terapia , Doença Pulmonar Obstrutiva Crônica/diagnóstico , Cuidados Críticos/métodos , Unidades de Terapia Intensiva , HospitaisRESUMO
Introduction: Pulmonary hypertension due to chronic obstructive pulmonary disease (COPD) is classified as Group 3 pulmonary hypertension, with no current proven targeted therapies. It has been shown that cigarette smoke, the main risk factor for COPD, can increase thromboxane A2 production in healthy human pulmonary artery smooth muscle cells and pulmonary artery endothelial cells, and that blocking the effect of increased thromboxane A2 using daltroban, a thromboxane A2 receptor antagonist, can inhibit cigarette smoke-induced pulmonary artery cell proliferation. However, it is largely unknown whether thromboxane A2 is increased in smokers with COPD. Therefore, the aim of this study was to assess the level of thromboxane A2 production in patients with COPD who smoke. Methods: Pulmonary artery smooth muscle cells from three smokers with COPD and three healthy donors were cultured in cell culture medium. The culture medium was collected and the thromboxane B2 (a stable metabolite of thromboxane A2) released in the culture medium was quantified using an ELISA kit. The data were normalised with the total protein concentration and then expressed in pg/mg protein. Demographic data were collected and baseline pulmonary function tests of patients with COPD were conducted. Results: The mean age of patients with COPD was 69 ± 7 years. All patients were smokers and had a mean smoking history of 39.66 ± 9.50 packs per year. The mean forced expiratory volume in one second, that is, FEV1%, and the ratio of forced vital capacity (FVC) to FEV1% of COPD patients were 63.33 ± 19.60% and 52.66 ± 14.64%, respectively. The results revealed that thromboxane A2 production was significantly increased in pulmonary artery smooth muscle cells from smokers with COPD (434.56 ± 82.88 pg/mg protein) compared with the thromboxane A2 levels in pulmonary artery smooth muscle cells from healthy donors (160 ± 59.3 pg/mg protein). Conclusions: This is the first report of increased thromboxane A2 production in pulmonary artery smooth muscle cells from smokers with COPD. This observation strongly suggests that thromboxane A2 can be used as a novel therapeutic target for the treatment of patients with COPD-associated pulmonary hypertension.
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Hipertensão Pulmonar , Doença Pulmonar Obstrutiva Crônica , Humanos , Pessoa de Meia-Idade , Idoso , Artéria Pulmonar , Tromboxanos , Células Endoteliais , Doença Pulmonar Obstrutiva Crônica/complicações , Miócitos de Músculo LisoRESUMO
Background and Objectives: Oral lichen planus (OLP) is an autoimmune, mucocutaneous, oral potentially malignant disorder (OPMD), which characteristically manifests with chronic, recalcitrant lesions, with frequent flare-ups and remissions. The precise etiopathogenesis of OLP is still debatable, although it is believed to be a T-cell-mediated disorder of an unidentified antigen. Despite the availability of various treatments, no cure for OLP exists due to its recalcitrant nature and idiopathic etiology. Platelet-rich plasma (PRP) has antioxidant, anti-inflammatory, and immunomodulatory properties, in addition to its regulatory action on keratinocyte differentiation and proliferation. These salient properties substantiate the possible role of PRP in the treatment of OLP. Our systematic review focuses on assessing the therapeutic potential of PRP as a treatment modality in OLP. Materials and Methods: We conducted a detailed literature search for studies assessing PRP as a therapeutic regimen in OLP, using the Google Scholar and PubMed/MEDLINE search engines. The search was limited to studies published from January 2000 to January 2023 and included a combination of Medical Subject Heading (MeSH) terms. ROBVIS analysis was carried out for the assessment of publication bias. Descriptive statistics were performed using Microsoft Excel. Results: This systematic review included five articles that met the inclusion criteria. Most of the included studies demonstrated that PRP treatment considerably ameliorated both objective and subjective symptoms in OLP subjects, with comparable efficacy to the standard corticosteroid treatment. Further, PRP therapy offers the added benefit of minimal adverse effects and recurrences. Conclusion: This systematic review suggests that PRP has significant therapeutic potential for treating OLP. However, further research with larger sample sizes is imperative to corroborate these findings.
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Líquen Plano Bucal , Neoplasias , Humanos , Líquen Plano Bucal/tratamento farmacológico , Líquen Plano Bucal/diagnóstico , Neoplasias/complicações , Corticosteroides/uso terapêuticoRESUMO
BACKGROUND: Pulmonary hypertension is a common and serious complication of chronic obstructive pulmonary disease (COPD). Studies suggest that cigarette smoke can initiate pulmonary vascular remodelling by stimulating cell proliferation; however, the underlying cause, particularly the role of vasoactive prostanoids, is unclear. We hypothesize that cigarette smoke extract (CSE) can induce imbalanced vasoactive prostanoid release by differentially modulating the expression of respective synthase genes in human pulmonary artery smooth muscle cells (PASMCs) and endothelial cells (PAECs), thereby contributing to cell proliferation. METHODS: Aqueous CSE was prepared from 3R4F research-grade cigarettes. Human PASMCs and PAECs were treated with or without CSE. Quantitative real-time RT-PCR and Western blotting were used to analyse the mRNA and protein expression of vasoactive prostanoid syhthases. Prostanoid concentration in the medium was measured using ELISA kits. Cell proliferation was assessed using the cell proliferation reagent WST-1. RESULTS: We demonstrated that CSE induced the expression of cyclooxygenase-2 (COX-2), the rate-limiting enzyme in prostanoid synthesis, in both cell types. In PASMCs, CSE reduced the downstream prostaglandin (PG) I synthase (PGIS) mRNA and protein expression and PGI2 production, whereas in PAECs, CSE downregulated PGIS mRNA expression, but PGIS protein was undetectable and CSE had no effect on PGI2 production. CSE increased thromboxane (TX) A synthase (TXAS) mRNA expression and TXA2 production, despite undetectable TXAS protein in both cell types. CSE also reduced microsomal PGE synthase-1 (mPGES-1) protein expression and PGE2 production in PASMCs, but increased PGE2 production despite unchanged mPGES-1 protein expression in PAECs. Furthermore, CSE stimulated proliferation of both cell types, which was significantly inhibited by the selective COX-2 inhibitor celecoxib, the PGI2 analogue beraprost and the TXA2 receptor antagonist daltroban. CONCLUSIONS: These findings provide the first evidence that cigarette smoke can induce imbalanced prostanoid mediator release characterized by the reduced PGI2/TXA2 ratio and contribute to pulmonary vascular remodelling and suggest that TXA2 may represent a novel therapeutic target for pulmonary hypertension in COPD.
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Fumar Cigarros , Hipertensão Pulmonar , Doença Pulmonar Obstrutiva Crônica , Proliferação de Células , Células Endoteliais , Humanos , Hipertensão Pulmonar/etiologia , Hipertensão Pulmonar/metabolismo , Prostaglandinas/metabolismo , Prostaglandinas E/metabolismo , Prostaglandinas E/farmacologia , Artéria Pulmonar/metabolismo , Doença Pulmonar Obstrutiva Crônica/metabolismo , RNA Mensageiro/metabolismo , Nicotiana , Remodelação VascularRESUMO
BACKGROUND: Many organizations have suggested a minimum standard regarding pharmaceutical counselling for patients, which includes information about the name of the drug, the description the drug, the indication for use, how to use it, the method of treatment, precautions, adverse reactions, and any contraindications. Correspondingly, the World Health Organization (WHO) has recommended that pharmacists spend at least 3 min with each patient to provide counselling. This study aimed to evaluate the counselling practices of community pharmacists for both over-the-counter (OTC) and prescription-only medicines in the Bisha Health Directorate, Saudi Arabia. METHOD: This was a cross-sectional study designed to evaluate simulated patient visits to observe real counselling practices of community pharmacies in the Bisha area; 73 pharmacies were visited. Two scenarios were used in this study. The first scenario was for a prescription-only medicine, and the second scenario was for an OTC medicine. The duration of counselling was recorded for every visit. RESULTS: A total of 105 visits to the 73 pharmacies were conducted under the following scenarios: scenario 1 = 73 visits and scenario 2 = 32 visits. The average time for the simulation was 110 s for scenario 1 and 73.4 s for scenario 2. There was a statistically significant negative correlation between the duration of counselling and patient simulation visits that occurred in the morning (Spearman's rho = - 0.396, p = 0.001). CONCLUSION: It was shown that patient counselling needs to be given greater emphasis in community pharmacies. In this study, the time spent for patient counselling failed to meet the minimum WHO standard. Thus, pharmacists must be encouraged to spend at least 3 min on patient counselling.
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Serviços Comunitários de Farmácia , Aconselhamento/estatística & dados numéricos , Padrões de Prática dos Farmacêuticos/estatística & dados numéricos , Estudos Transversais , Pesquisa sobre Serviços de Saúde , Humanos , Simulação de Paciente , Arábia SauditaRESUMO
BACKGROUND: Test procedures that were developed to assess somatosensory abnormalities should possess optimal psychometric properties (PMPs) to be used in clinical practice. The aim of this systematic review was to evaluate the literature to assess the level of evidence for PMPs of test procedures investigated in individuals with peripheral joint pain (PJP). METHODS: A comprehensive electronic literature search was conducted in 7 databases from inception to March 2016. The Quality Appraisal for Reliability Studies (QAREL) checklist and the Consensus-based Standards for the Selection of Health Status Measurement Instruments (COSMIN) tool were used to assess risk for bias of the included studies. Level of evidence was evaluated based on the methodological quality and the quality of the measurement properties. RESULTS: Forty-one studies related to PJP were included. The majority of included studies were considered to be of insufficient methodological quality, and the level of evidence for PMPs varied across different test procedures. The level of evidence for PMPs varied across different test procedures in different types of PJP. Hand-held pressure algometry is the only test procedure that showed moderate positive evidence of intrarater reliability, agreement, and responsiveness, simultaneously, when it was investigated in patients with chronic knee osteoarthritis. CONCLUSIONS: This systematic review identified that the level of evidence for PMPs varied across different testing procedures to assess somatosensory abnormalities for different PJP populations. Further research with standardized protocols is recommended to further investigate the predictive ability and responsiveness of reported test procedures in order to warrant their extended utility in clinical practice.
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Artralgia/diagnóstico , Sensibilização do Sistema Nervoso Central , Psicometria , Humanos , Reprodutibilidade dos TestesRESUMO
Background: Endless ink and pixel space have been spent to validate the use of cheiloscopy classification systems in the field of identification. It is becoming evident that lip-print patterns may provide indications about an individual's gender, race, occupation, habits, blood type, and paternity. Over the course of time, much data have been collected on a substantial population in this field. In the present study, we strive to see how well a noble total lip scoring (TLS) system works in identifying a person's gender among the College of Dentistry students. We also quantified the total groove score (TGS) and compared it with each quadrant for better authentication of the set study design. Materials and Method: A cross-sectional descriptive study was conducted among 60 dental students (30 males and 30 females), with an age range of 18-30 years. Lip prints were recorded using the writing pad method and subsequently digitalized by capturing the images using Adobe Photoshop CS 6 Extended Version, counted and summed up, quadrant-wise, in both upper and lower lips. The TLS and TGS between males and females were statistically calculated using the Jamovi project. Results: The mean value for TLS for males (n = 402; SD ± 92.1) is higher than that for females (n = 348; SD ± 86.1). The correlation matrix applying a non-parametric test for non-continuous data using Spearman's ratio inferred a statistically significant correlation (-0.354) with a P-value of 0.005 for TLS, whereas a correlation (-0.162) of TGS with gender was not so significant with a P-value of 0.217. Conclusion: Our study proved the uniqueness of applying TLS as a novel approach to gender identification. The study revealed that males had a statistically higher lip score than females. Clinical Significance/Future Implications: Being unique, our study inferred the importance of TLS, which needs to be explored in detail for applying, evaluating, and validating its accuracy in forensic research that can help for errorless investigations as full-proof evidence in court.
RESUMO
Background: The Pain Sensitivity Questionnaire (PSQ) is a reliable and valid self-reported tool for the assessment of pain sensitivity in clinical practice. The PSQ has been translated, validated, and cross-culturally adapted into multiple languages. However, a validated Arabic version of the PSQ is not available. Thus, this study aims to translate, validate, and cross-culturally adapt the English version of the PSQ into the Arabic language. Methods and materials: The English version of the PSQ was translated and culturally adapted into Arabic following international guidelines. The psychometric properties of the final version of the PSQ-Arabic (PSQ-A) were tested among 119 patients with different persistent musculoskeletal (MSK) pain. Findings: The Cronbach's α for the PSQ-A-total, PSQ-A-moderate, and PSQ-C-minor were 0.81, 0.79, and 0.76, respectively. The means for the PSQ-A-total, PSQ-A-moderate, and PSQ-C-minor scores were 5.07 (±1.28), 5.64 (±2.07), and 4.50 (±0.50). The test-retest reliability measured with the interclass correlation coefficient for 68 subjects was 0.80 for the PSQ-A-total, 0.74 for the PSQ-A-moderate, and 0.77 for the PSQ-A-minor. The PSQ-A-total and the PSQ-A-minor showed positive significant correlations with pain catastrophizing scale (PCS) (r = 0.15, 0.17); P ≤ 0.05), respectively. The PSQ-A-total, PSQ-A-moderate, and PSQ-A-minor showed positive significant correlations with the Brief Pain Inventory (BPI)-pain scores (r = 0.47, 0.43, 0.45; P ≤ 0.01), respectively and with the BPI-pain interference scores (r = 0.37, 0.33, 0.34; P ≤ 0.01), respectively. Conclusions: This study shows that the PSQ-A is a reliable and valid tool to assess individuals with pain sensitivity in Arabic populations. Further studies are recommended to examine the concurrent validity of the PSQ-A against experimental pain sensitivity measures.
RESUMO
Persistent primitive hypoglossal artery (PPHA) is a rare embryological carotid-basilar anastomosis. Diagnosis is by imaging and computed tomography angiography is the most common methods employed. Herein we present a case of a 51 years-old Indian male, who admitted with midnight nonwitnessed syncope. CT angiogram of the brain revealed a very rare caroto-basilar anastomoses anomaly with PPHA.
RESUMO
Background: Central sensitization (CS) has been proposed as a possible contributor to persistent shoulder pain. Measures of sensitivity, such as quantitative sensory tests (QSTs) and sensitivity to movements evoked pain (SMEP), have been increasingly used to investigate CS in a wide range of painful conditions. However, there is a lack of data on whether QST and SMEP are reliable among individuals with shoulder pain. Therefore, the present study aimed to investigate the intra-rater test-retest reliability of QST and SMEP in individuals with chronic shoulder pain. Materials and Methods: Forty-seven individuals with chronic shoulder pain were enrolled in the study. The QST measures, including pressure pain threshold (PPT) and mechanical temporal summation (MTS), were tested, and SMEP was measured with a lifting task. Relative and absolute reliability were analyzed using intraclass correlation coefficients (ICC 3,1) and standard error of the measurement (SEM), respectively. Results: The results showed that the ICC coefficients for all sensitivity measures were moderate to good, ranging from 0.63 to 0.86. The SEM% for the QST measures at all sites ranged from 21.4% to 36%, with TS at the forearm demonstrating a high SEM% (greater than 30%). The SMEP measure also showed a high SEM% (46%). Conclusion: The results showed that the sensitivity measures had moderate to good reliability among individuals with shoulder pain. Acceptable limits of accuracy of measurements were demonstrated for TS and PPT measures, while SMEP demonstrated high error, highlighting the need for further refinement of this measure among these populations.