Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 96
Filtrar
1.
Nurs Ethics ; : 9697330241246089, 2024 Apr 16.
Artículo en Inglés | MEDLINE | ID: mdl-38628067

RESUMEN

BACKGROUND: Moral distress has negative effects on physical and mental health. However, there is little information about nurses' coping strategies reducing moral distress. AIM: The purpose of this study was to investigate the coping strategies of intensive care unit nurses reducing moral distress in Iran. STUDY DESIGN: This is a qualitative study with a content analysis approach. PARTICIPANTS AND RESEARCH CONTEXT: The research sample consisted of nurses working in intensive care units of teaching hospitals affiliated to Tehran University of Medical Sciences. Samples were selected among eligible nurses by purposive sampling. Data were obtained through 17 in-depth, individual, and semi-structured interviews with 17 nurses. Graneheim and Lundman's (2004) 6-step content analysis method was used to analyze the data. Data management was also performed by MAXQDA software version 20. The COREQ checklist was used to report the study. ETHICAL CONSIDERATIONS: This project was approved by the Ethics Committee of Tehran University of Medical Sciences. All ethical guidelines in research were followed. FINDING: The data analysis resulted in the formation of two main categories of desirable coping strategies (with two subcategories of compensation and rejuvenation) and less desirable coping strategies (with three subclasses of indifference over time, escape and concealment). DISCUSSION: The intensive care unit nurses in dealing with ethical problems first try to solve the problem through discussion, but when they fail to resolve it peacefully, they resort to several coping strategies. Factors, such as increasing experience, lack of support from hospital managers and officials, poor communication between colleagues, the need to maintain hierarchy, fear of reprimand, and a sense of powerlessness, changed the nurses' preferred strategies. It is important for managers to provide a blame/punishment-free atmosphere for expression of ethical experiences; a supportive atmosphere in which staff can engage in ethical discussions without fear of punishment. They should also provide opportunities for rest, rejuvenation, and adequate training for their employees.

2.
Sci Rep ; 14(1): 6180, 2024 03 14.
Artículo en Inglés | MEDLINE | ID: mdl-38486041

RESUMEN

Long non-coding RNA (lncRNA) regulates many physiological processes by acting as competitive endogenous RNA (ceRNA). The dysregulation of lncRNA X-inactive specific transcript (XIST) has been shown in various human disorders. However, its role in the pathogenesis of polycystic ovary syndrome (PCOS) is yet to be explored. This study aimed to explore the underlying mechanism of XIST in the pathogenesis of PCOS, specifically through dataset functional analysis. GEO PCOS datasets including RNA-seq, microarray, and miRNA-seq in granulosa cells (GCs) and blood, were examined and comprehensively analyzed. Enrichment analysis, ROC curve constructions, lncRNA-miRNA-mRNA interaction network analyses, and qRT-PCR validation were performed followed by a series of drug signature screenings. Our results revealed significant dysregulation in the expression of 1131 mRNAs, 30 miRNAs, and XIST in GCs of PCOS patients compared to healthy individuals. Of the120 XIST-correlated upregulated genes, 25 were enriched in inflammation-related pathways. Additionally, 5 miRNAs were identified as negative regulators of XIST-correlated genes. Accordingly, a ceRNA network containing XIST-miRNAs-mRNAs interactions was constructed. Furthermore, 6 genes, including AQP9, ETS2, PLAU, PLEK, SOCS3, and TNFRSF1B served as both GCs and blood-based biomarkers. By analyzing the number of interactions among XIST, miRNAs, and mRNAs, we pinpointed ETS2 as the pivotal gene within the ceRNA network. Our findings reveal a novel XIST- hsa-miR-146a-5p, hsa-miR-144-3p, and hsa-miR-1271-5p-ETS2 axis that comprehensively elucidates the XIST-associated mechanism underlying PCOS onset. qRT-PCR analysis further confirmed the, overexpression of both XIST and ETS2 . Furthermore, our results demonstrated that XIST and ETS2 were correlated with some assisted reproductive technologies outcomes. Finally, we identified two novel compounds including, methotrexate/folate and threonine using drug-gene interaction databases for PCOS management. These findings provide novel insights into the molecular etiology, diagnosis, and potential therapeutic interventions for PCOS.


Asunto(s)
MicroARNs , Síndrome del Ovario Poliquístico , ARN Largo no Codificante , Femenino , Humanos , MicroARNs/genética , Síndrome del Ovario Poliquístico/genética , ARN Endógeno Competitivo , ARN Largo no Codificante/genética , Transcriptoma
3.
Microbes Infect ; 26(1-2): 105246, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-37926369

RESUMEN

The delivery of Helicobacter pylori CagA into host cells was long believed to occur through the integrin cell surface receptors. However, the role of CEACAM receptors has recently been highlighted, instead. Here, we have categorized the existing experimental evidence according to whether deletion, upregulation, downregulation, or inhibition of the target ligands (T4SS or HopQ) or receptors (integrins or CEACAMs), result in alterations in CagA phosphorylation, cell elongation, or IL-8 production. According to our analysis, the statistics favor the essence of most of the T4SS constituents and the involvement of HopQ adhesin in all three functions. Concerning the integrin family, the collected data is controversial, but yielding towards it being dispensable or involved in CagA translocation. Yet, regarding cell elongation, more events are showing ß1 integrin being involved, than αvß4 being inhibitory. Concerning IL-8 secretion, again there are more events showing α5, ß1 and ß6 integrins to be involved, than those showing inhibitory roles for ß1, ß4 and ß6 integrins. Finally, CEACAM 1, 3, and 5 are identified as mostly essential or involved in CagA phosphorylation, whereasCEACAM 4, 7, and 8 are found dispensable and CEACAM6 is under debate. Conversely, CEACAM1, 5 and 6 appear mostly dispensable for cell elongation. Noteworthy is the choice of cell type, bacterial strain, multiplicity and duration of infection, as well as the sensitivity of the detection methods, all of which can affect the variably obtained results.


Asunto(s)
Infecciones por Helicobacter , Helicobacter pylori , Humanos , Proteínas Bacterianas/genética , Proteínas Bacterianas/metabolismo , Integrinas/metabolismo , Antígenos Bacterianos/genética , Antígenos Bacterianos/metabolismo , Helicobacter pylori/genética , Interleucina-8/metabolismo
4.
BMC Res Notes ; 16(1): 295, 2023 Oct 26.
Artículo en Inglés | MEDLINE | ID: mdl-37885028

RESUMEN

INTRODUCTION: Simultaneous pancreas kidney (SPK) transplantation is an invaluable procedure to enhance the quality of life of insulin-dependent patients with advanced renal disease. The creation of vascular anastomoses of the donor's pancreas vessels to the recipient's, is of utmost importance to predict the graft outcome and surgical complications. In the study we introduce a novel technique for arterial reconstruction during SPK transplantation. METHODS: Conventionally, during the SPK transplantation, a so-called Y-graft is anastomosed between donor's superior mesenteric and splenic artery to the recipient's right iliac artery. In the study we adopted a new technique by preparing an extra extension using the donor's carotid artery, to be anastomosed to the Y-graft and the iliac artery. In this non-blinded randomized clinical trial we compared the surgical complications and early outcomes between the 2 groups of patients with the traditional and new arterial reconstruction techniques during 3 months after transplantation. RESULTS: Thirty adult patients were included in the study. The incidence of pancreatitis, vascular thrombosis and surgical site infection was lower in the new Y-graft and extension technique, which was not statistically significant. However, the calculated Cohen's d index showed the medium effect of new Y-graft and extension technique on complication after SPK transplantations. CONCLUSION: The post-operative complications tend to be lower in the novel arterial reconstruction technique, however a study on a larger patient group is encouraged to confirm our primary results. TRIAL REGISTRATION: The study was registered at the Iranian Registry of Clinical Trials on 12/05/2022; IRCT 20210625051701N2; ( http://www.irct.ir/ ).


Asunto(s)
Diabetes Mellitus Tipo 1 , Trasplante de Riñón , Trombosis , Adulto , Humanos , Trasplante de Riñón/efectos adversos , Irán , Calidad de Vida , Trombosis/etiología , Páncreas/cirugía , Diabetes Mellitus Tipo 1/complicaciones
5.
Creat Nurs ; 29(2): 229-237, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-37800733

RESUMEN

The prevalence of patients on mechanical ventilation who are being supported at home is increasing. Due to these patients' complex and chronic conditions, the subjective burden on their family caregivers increases after discharge. The aim of this study was to evaluate the effectiveness of a supportive home care program on the caregiver burden of families caring for patients on invasive mechanical ventilation at home. Sixty patients hospitalized in three university-affiliated hospitals in Tehran, Iran between 7/2020 and 8/2021 were randomly assigned to one of two groups: A supportive home care program, and routine hospital education. The supportive home care program included six educational sessions delivered in the hospital before discharge, and home visits and continued education after discharge. Caregiver burden was measured using the Zarit Burden Interview. Results showed that caregiver burden increased significantly (p ≥ .001) after discharge without the supportive home care program intervention. Follow-up by nurses after discharge is essential to reduce the psychological burden of caring for patients on invasive mechanical ventilation at home.


Asunto(s)
Carga del Cuidador , Respiración Artificial , Humanos , Irán , Cuidadores/psicología , Atención al Paciente
6.
Methods Mol Biol ; 2708: 41-48, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37558958

RESUMEN

The generation of retinal ganglion cells (RGCs) differentiated from human embryonic stem cell (hESC) or induced-pluripotent stem cells (iPSC) could aid with understanding of human RGC development, neuronal biology, drug discovery, potential cell-based therapies, and gene regulation. Here, we present a protocol for differentiation of hESC to RGCs using a 40-day protocol, significantly shorter than typical retinal organoids while still yielding cells with RGC-enriched markers and show physiological and morphological properties typical of RGCs.


Asunto(s)
Células Madre Pluripotentes Inducidas , Células Ganglionares de la Retina , Humanos , Células Cultivadas , Diferenciación Celular , Retina
7.
J Clin Med ; 12(14)2023 07 11.
Artículo en Inglés | MEDLINE | ID: mdl-37510724

RESUMEN

The internal and external validity of cognitive disengagement syndrome (CDS) relative to attention-deficit/hyperactivity disorder-inattention (ADHD-IN) was evaluated herein with Farsi-speaking adults. A total of 837 Iranian adults assessed throughout the whole country (54.72% women, Mage = 23.85; SD = 7.05; age range = 18 to 58 years; 75% between 18 and 24 years old; reporting higher educational training) completed self-report measures of CDS, ADHD-IN, ADHD-hyperactivity/impulsivity (HI), depression, anxiety, and stress. Seven of the fifteen CDS symptoms showed a good convergent (high loadings on the CDS factor) and discriminant (higher loadings on the CDS factor than the ADHD-IN factor) validity. CDS also showed stronger first-order and unique associations with depression than ADHD-IN, whereas ADHD-IN showed stronger first-order and unique associations with ADHD-HI and anxiety than CDS. The first-order and unique associations of CDS and ADHD-IN did not differ in relation to stress. This study is the first to support the validity of the self-report of assessing CDS symptoms with the Adult Concentration Inventory with Farsi-speaking individuals residing in Iran, thus further strengthening the transcultural validity of the CDS, and paving the way for further transcultural research in the field of CDS among adults.

8.
J Child Health Care ; : 13674935231183020, 2023 Jun 08.
Artículo en Inglés | MEDLINE | ID: mdl-37287237

RESUMEN

Adolescents' mental health may be influenced either negatively or positively through loss of a parent, especially bereavement due to a traumatic death. This descriptive phenomenological study aimed to investigate Afghan adolescents' post-traumatic growth after traumatic loss of father. The participants were 14 female and male Afghan adolescents who met the inclusion criteria. Post-traumatic growth was substantiated by virtue of post-traumatic growth questionnaire. Data was collected through a semi-structured interview, and Colaizzi analysis method was used for data analysis. Two main themes were extracted: (a) moving forward with hope and (b) factors associated with enhancement of hope. Findings showed that Afghan traumatized adolescents achieved post-traumatic growth over time. The most important factors in enhancement of hopefulness were social support, psychological, and cognitive factors, as well as spiritual well-being. Our findings suggested that both schools and non-governmental organization in Afghanistan may be benefitted from more accessible opportunities to enhance post-traumatic growth for bereaved adolescents.

9.
Home Health Care Serv Q ; 42(3): 173-192, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37323011

RESUMEN

The use of home mechanical ventilation is increasingly developing. The present study aimed to examine the effect of a family-centered training program on patients under home invasive mechanical ventilation. A total of 60 adult patients under invasive mechanical ventilation were selected and randomly allocated into two groups. The supportive home care program consisting of six training sessions using a teach-back technique and follow up training at home. The rate of hospital readmission and mortality in the intervention group was significantly lower than the control group(P = .02 and P = .03, respectively). Moreover, the home caregivers' level of knowledge in the intervention group was significantly higher than that of the control group(P = 0/000). In addition, implementing the intervention effectively increased home caregivers' ability of functional skills. Therefore, comprehensive preparation of the patient and family before discharge and coherent support and continuity of care after discharge with the effective presence of nurses.


Asunto(s)
Servicios de Atención de Salud a Domicilio , Respiración Artificial , Adulto , Humanos , Cuidadores/educación , Alta del Paciente
10.
Iran J Nurs Midwifery Res ; 28(1): 32-37, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-37250938

RESUMEN

Background: Coronary Artery Disease (CAD) complications cause patients to experience a great deal of concerns and challenges that have adverse effects on their mental health. This study aimed to assess the effect of an empowerment program on life orientation and optimism in CAD patients. Materials and Methods: This randomized clinical trial was conducted on 84 CAD patients admitted to post-CCU wards of Tehran Heart Center during 2018-2019 Patients were allocated to intervention and control groups by block randomization method based on inclusion criteria. Demographic and disease characteristics, and optimism and Life Orientation Test-Revised (LOT-R) questionnaires were completed before and eight weeks after intervention. In the intervention group, an empowerment program was implemented. Data were analyzed by independent t-test, paired t-test, and Chi-square test. Results: The results showed that the mean of patients' age in the intervention and control group was Mean [Standard Deviation (SD)] 54.59 (7.93) and 55.92 (7.81) years, respectively. Most patients in both intervention (61.90%) and control (66.70%) groups were male. The majority of patients in the intervention group (92.90%) and the control group (95.20%) were married. There were no significant differences between the two groups in terms of demographic characteristics and disease history before the intervention (p > 0.05). After the intervention, a significant difference was observed in the life orientation and optimism scores between the intervention and control groups (p < 0.001). Conclusions: By stimulating self-awareness, providing knowledge and encouraging patients to control, and manage their disease, the empowerment program changes patients' view of their disease, and increases their optimism and positive life orientation.

11.
BMC Health Serv Res ; 23(1): 399, 2023 Apr 25.
Artículo en Inglés | MEDLINE | ID: mdl-37098493

RESUMEN

BACKGROUND: Medical tourism is traveling to another country to promote, restore and maintain health, recreation, and pleasure. There are different types of health tourism, including medical tourism, recovery tourism, and preventive tourism. This study aimed to explain safe acceptance in the nurses' cultural care of medical tourists in Iran. METHODS: In this qualitative study, 18 semi-structured interviews were conducted with nurses, patients, and patients' relatives, who had been selected by purposeful sampling in 2021-2022. The interviews were recorded, transcribed, and then analyzed by conventional content analysis. RESULTS: The statistical analysis revealed that the main theme of this study was safe acceptance which included the five categories of trust building, safety, maintaining comfort and peace, stress control, and identifying patients' expectations. CONCLUSIONS: The present study demonstrated that safe acceptance of cultural care was essential to medical tourism. Iranian nurses were aware of the factors that affected cultural care and the safe acceptance of medical tourists. Moreover, they carried out the necessary measures to achieve safe acceptance. In this regard, solutions such as developing a comprehensive and mandatory national qualification program and evaluating its periodic performance in this field are suggested.


Asunto(s)
Turismo Médico , Enfermeras y Enfermeros , Humanos , Irán , Asistencia Sanitaria Culturalmente Competente , Investigación Cualitativa
12.
Microb Pathog ; 177: 106024, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36758823

RESUMEN

BACKGROUND: H. pylori are generally considered as extracellular organisms, with exclusive colonization of the gastric milieu. Yet, several extra gastric manifestations are associated with this infection. The aim of the present study was to investigate the feasibility of toxin transfer by extracellular vesicles, from bacterial and epithelial origins. METHODS: Tox-positive H. pylori and its two cagA and vacA mutant strains were used to produce bacterial vesicles (BVs) and to infect AGS cells. The produced BVs and the infected cell vesicles (ICVs) were collected by ultracentrifugation and evaluated by western blotting, DLS and electron microscopy. These two sets of vesicles were applied to a second set of recipient AGS cells, in which the acellular transfer of toxins, IL-8 production and downstream morphologic changes were assessed, by western blotting, ELISA and light microscopy, respectively. RESULTS: The BVs were positive for H. pylori membrane markers (BabA and UreB), VacA and CagA toxins, except for from the corresponding mutant strains. The ICVs were larger in size and positive for bacterial markers, as well as epithelial markers of CD9, LGR5, but negative for nuclear (Ki76) or cytoplasmic (ß-actin) markers. Bacteria-independent transfer of CagA and VacA into the recipient cells occurred upon treatment of cells with BVs and ICVs, followed by cellular vacuolation and elongation. IL-8 production was induced in recipient AGS cells, treated with BVs (1279.4 ± 19.79 pg/106 cells), early (8 h, 1171.4 ± 11.31 pg/106 cells) and late (48 h, 965.4 ± 36.77 pg/106 cells) ICVs (P < 0.0001). CONCLUSION: Our data indicates that ICVs, with mixed bacterial and epithelial constituents, similar to BVs, are capable of transferring bacterial toxins into the recipient cells, inducing IL-8 production and subsequent morphologic changes, in an acellular manner.


Asunto(s)
Vesículas Extracelulares , Infecciones por Helicobacter , Helicobacter pylori , Humanos , Antígenos Bacterianos/genética , Antígenos Bacterianos/metabolismo , Proteínas Bacterianas/genética , Proteínas Bacterianas/metabolismo , Helicobacter pylori/genética , Helicobacter pylori/metabolismo , Interleucina-8/metabolismo , Vesículas Extracelulares/metabolismo , Infecciones por Helicobacter/metabolismo
14.
Crit Care Nurs Q ; 46(2): 192-202, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36823746

RESUMEN

Working as a nurse in the critical care unit may involve ethical challenges including conflict of conscience. Literature provides very limited knowledge about intensive care unit (ICU) nurses' perception of conscience. Considering the influence of culture on the perception of conscience, it is important to study it in diverse contexts. This study aims were to explore the meaning of conscience and the impact of conscience on nurses' practice in the ICU. A qualitative research approach was used to answer the research question, and qualitative content analysis guided the study. A total of 17 interviews were conducted with ICU nurses. Data were collected through semistructured tools by using videoconferencing and face-to-face interviews. Data analysis resulted in the formation of 2 main categories and 7 subcategories. The main categories included understanding the conscience and unlimited efforts in caretaking as the path to a clear conscience. The category of understanding the conscience includes 3 subcategories of conscience as an intrinsic asset and internal observer, dynamicity of conscience, and conscience as the cornerstone of morality. Also, the category of unlimited efforts in caretaking as the path to a clear conscience consists of 4 subcategories including giving full attention to the patient, putting oneself in another's shoes, taking responsibility, and working beyond the job description. Conscience plays an essential role in providing the ethical care among ICU nurses. The ICU nurses felt that they need to go above and beyond to keep their conscience clear. Nurses expressed the importance of following the call of conscience at their workplace, which demanded unlimited efforts to achieve a clear conscience.


Asunto(s)
Conciencia , Enfermeras y Enfermeros , Humanos , Unidades de Cuidados Intensivos , Investigación Cualitativa
15.
Clin Nurs Res ; 32(3): 648-659, 2023 03.
Artículo en Inglés | MEDLINE | ID: mdl-36788432

RESUMEN

Treatment adherence is a fundamental aspect of heart failure (HF) management. This study aimed to explore the experiences of facilitators and inhibitors of treatment adherence in patients with HF. This descriptive qualitative study was conducted from May 2020 to June 2021. Participants including people with HF, their family caregivers and physicians, and nurses were selected purposefully, with the aim of obtaining sufficient information power. Semi-structured interviews were used to collect data. Data were analyzed using thematic analysis. Two main themes "the driving forces behind treatment adherence" and "the deterrent forces behind treatment adherence" emerged from the analysis. The first theme contained the following subthemes: "supportive family," "positive personality characteristics," and "having health literacy." The second theme consisted of "negligence," "psychological problems," "cultural, social, and economic problems," "physical limitations," and "lack of self-care management knowledge." Nurses can consider facilitators and inhibitors of treatment adherence in designing educational and care programs for patients with HF.


Asunto(s)
Insuficiencia Cardíaca , Cumplimiento y Adherencia al Tratamiento , Humanos , Investigación Cualitativa , Insuficiencia Cardíaca/tratamiento farmacológico , Insuficiencia Cardíaca/psicología , Autocuidado/psicología , Cuidadores
16.
Iran Biomed J ; 27(1): 72-8, 2023 01 01.
Artículo en Inglés | MEDLINE | ID: mdl-36624700

RESUMEN

Background: The role of inflammatory cytokines, such as tumor necrosis-α (TNF-α) and IL-8, in gastric carcinogenesis has been investigated, but their impact remains to be further elucidated. Methods: In this study, we measured the serum concentrations of these cytokines and H. pylori serostatus in dyspeptic patients, presenting with normal mucosa (NM = 53), chronic gastritis (CG = 94), and gastric cancer (GC = 82), by ELISA. Results: Moderate levels of TNF-α were detected in the NM group (19.9 ± 19.5 pg/ml), which were nearly doubled in patients with CG (35.7 ± 28.0 pg/ml) and drastically declined in GC patients (1.8 ± 5.9 pg/ml). The serum levels of IL-8, however, were not statistically different amongst these three groups. Conclusion: TNF-α serum concentration seemed to undergo up- and downregulation, when moving from NM to CG and from CG to GC, respectively. If confirmed in a prospective study, this cytokine can behave as a serum indicator of gastric inflammation and malignant transformation.


Asunto(s)
Infecciones por Helicobacter , Helicobacter pylori , Neoplasias Gástricas , Humanos , Factor de Necrosis Tumoral alfa , Interleucina-8 , Estudios Prospectivos , Citocinas , Infecciones por Helicobacter/complicaciones , Mucosa Gástrica
17.
Nurs Open ; 10(2): 838-849, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36057965

RESUMEN

AIM: This study aimed to explore the barriers to the implementation of patient-centred care (PCC) in the cardiac care unit (CCU) from the perspectives of patients, nurses, physicians and nursing managers. DESIGN: This study was performed with a descriptive qualitative study approach. METHODS: In this study, the data were collected through face-to-face in-depth semi-structured interviews with 10 cardiac care nurses, one assistant nurse, two cardiologists, seven patients admitted to the CCU and nine nursing managers and analysed by Graneheim and Lundman content analysis method. RESULTS: After analysing the data, eight subcategories and three main categories were extracted. The main categories included challenges related to: organization, healthcare providers and patients. This study demonstrated the barriers to the implementation of PCC in the CCU. Insights into these barriers can guide interventions aimed at improving the quality of PCC in the CCU, which in turn can lead to improved disease outcomes.


Asunto(s)
Médicos , Humanos , Personal de Salud , Investigación Cualitativa , Atención Dirigida al Paciente , Unidades de Cuidados Coronarios
18.
Int J Biol Macromol ; 219: 779-787, 2022 Oct 31.
Artículo en Inglés | MEDLINE | ID: mdl-35940433

RESUMEN

Long noncoding RNAs (lncRNAs) as regulatory molecules play important roles in early treatment and diagnosis of cancers. Considering the role of PPARγ in colorectal cancer (CRC) as a tumor suppressor, the GEO database was used to identify candidate genes that affect the activation of PPARγ protein in CRC cell lines. Then were selected 5 genes containing PPARγ response element (PPRE) in up to 4000 bp upstream and were affected by PPARγ protein activation in HT-29 colon cancer cell line using UCSC database. Expression meta-analysis was applied to map the expression network between candidate genes and all known lncRNAs through expression correlation and lncRNAs that correlated with a greater number of candidate genes (R > 0.5, P.value < 0.001). Moreover, were selected 3 lncRNAs as lncRNAs affected by PPARγ protein activation. Next, the expression levels of candidate genes and lncRNAs were evaluated using RT-qPCR in HT-29 cell line. Results showed a significant increase (FDR <0.05) in the expression level of 5 candidate genes and lncRNAs LINC01133, MBNL1-AS, LOC100288911 after treatment with pioglitazone as PPARγ ligand compared to the untreated group in HT-29 cells. Although additional tests are needed to confirm bioinformatics predictions, it can be concluded that increased expression of PPARγ may increase genes and lncRNAs expression. In summary, this study could be suggested identifying lncRNAs affected by PPARγ activation could be a new strategy in understanding the function and activity of PPARγ in colon cancer.


Asunto(s)
Neoplasias del Colon , Neoplasias Colorrectales , ARN Largo no Codificante , Neoplasias del Colon/genética , Neoplasias Colorrectales/patología , Regulación Neoplásica de la Expresión Génica , Humanos , Ligandos , PPAR gamma/genética , PPAR gamma/metabolismo , Pioglitazona , ARN Largo no Codificante/genética , ARN Largo no Codificante/metabolismo
19.
Dent J (Basel) ; 10(8)2022 Aug 09.
Artículo en Inglés | MEDLINE | ID: mdl-36005247

RESUMEN

Silver diamine fluoride (SDF) is radiopaque. This in vitro study compares the changes in the radiopacity of carious lesions after SDF application, potassium iodide (PI) application, and water rinse. Ten recently extracted human teeth were sectioned and divided into two groups (n = 10 in each group): Group 1 = SDF, Group 2 = SDF + PI. Teeth in Group 1 received SDF for 1 min and rinsed with 15 mL water. Group 2 received the same protocol with the addition of PI application for 1 min after SDF application. All samples were scanned with micro-computed tomography before SDF application, after SDF application, after PI application (group 2) and after water rinse. The radiopacity of the carious lesions increased significantly after SDF application in Group 1 and 2 (p < 0.017, p < 0.008, respectively). A significant increase in radiopacity after PI application was also observed in Group 2 (p < 0.008). Water rinsing significantly decreased the radiopacity in Group 1 and 2 (p < 0.017, p < 0.008, respectively), but the radiopacity remained significantly higher than the preoperative values (Group 1 p < 0.017, Group 2 p < 0.008). The radiopacity of carious lesions increases after SDF and SDF + PI applications. Water rinsing could reduce the radiopacity of SDF and SDF + PI treated carious lesions, and might reduce the content of SDF in carious lesions.

20.
Biomed Pharmacother ; 153: 113338, 2022 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-35779418

RESUMEN

Obesity is one of the risk factors concerns of colorectal cancer (CRC), the most common type of gastrointestinal cancer, due to the changing lifestyle and especially diet. There are various molecular pathways associated with obesity and the risk of CRC incidence, such as insulin resistance or elevated plasma free fatty acids, which alter the signaling pathways of intestinal epithelial cells. The aim of this study was to better understand the significance of unsaturated fatty acid biosynthesis on pathogenesis of colon cancer in obese. Based on GSE20931 dataset, obese individuals affected by CRC had higher increased gene expression than non-obese individuals. The analysis showed that in obese individuals, the 16 signaling pathway genes were activated and increased (FDR <0.05) significantly. The biosynthetic pathway of unsaturated fatty acids showed a cross-talk with the arachidonic acid metabolism pathway and the PPAR signaling pathway is influenced and regulated via these pathways. The biosynthetic pathway of unsaturated fatty acids consisting of 22 genes, were analyzed using GEO data and revealed that 4 genes (HSD17B12, TECR, FADS2, ELOVL5) from this pathway were significantly increased (FDR <0.05). These data were validated based on TCGA data (Adj.p.value <0.001). The expression level of candidate genes in HT-29 cells decreased significantly (P.value <0.01), and PPARγ expression increased under linoleic acid treatment (200 µM) compared to control cells. Moreover, in presence of linoleic acid treatment, migration, colony formation, and proliferation decreased (P.value <0.01) in presence of treatment. In summary, the Biosynthesis pathway of unsaturated fatty acids is an interesting and critical pathway in CRC.


Asunto(s)
Neoplasias Colorrectales , Ácidos Grasos Insaturados , Obesidad , Adipogénesis , Neoplasias Colorrectales/metabolismo , Neoplasias Colorrectales/patología , Ácidos Grasos Insaturados/biosíntesis , Humanos , Resistencia a la Insulina , Ácido Linoleico , Obesidad/metabolismo
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA