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1.
Int J Nurs Pract ; : e13257, 2024 Apr 03.
Artículo en Inglés | MEDLINE | ID: mdl-38570203

RESUMEN

BACKGROUND: Few studies have evaluated the effectiveness of family functional care interventions among stroke caregiver dyads. This study aimed to examine the effect of a nurse-led therapeutic conversation intervention on resilience, family function, self-efficacy in managing the disease, and quality of life (QoL) in stroke family caregiver dyads. AIMS: This study aimed to examine the effect of a nurse-led therapeutic conversation intervention on resilience, family function, self-efficacy in managing the disease, and QoL in stroke-family caregiver dyads. DESIGN: This study was a single-blind (evaluator) randomized controlled trial. The planned execution time was from August 2021 to December 2022, in the rehabilitation ward of a medical university hospital. METHODS: A total of 82 dyads were included in this analysis. Dyads randomized to the intervention group received nurse-led therapeutic conversations intervention one at four weeks after the patient's hospitalization for a stroke. The family caregiver dyads of stroke survivors in the control group received routine care. An effectiveness analysis that included patients' resilience, self-efficacy, and patient-family caregiver dyads' family function and QoL was conducted at one month. We used the CONSORT Checklist for reporting parallel group randomized trials in this study. RESULTS: The patients in the intervention group showed improvement in resilience and self-efficacy after one month. Furthermore, the effects on resilience (Cohen's d = 0.49) and self-efficacy (Cohen's d = 0.46) were significantly higher than in the control group. Family functioning was significantly higher in patient-family caregiver dyads in the intervention group than in the control group (Cohen's d = 0.55; Cohen's d = 0.50). However, no significant difference in QoL was found between patients and caregivers in either group. CONCLUSIONS: The intervention was effective in promoting family functioning and can also promote patient resilience and self-efficacy in disease management. However, the intervention did not have a significant effect on the QoL of patient-family caregiver dyads.

2.
J Clin Nurs ; 32(1-2): 311-319, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-35118746

RESUMEN

AIMS AND OBJECTIVES: To determine whether interventions that use the Specific Thematic Nursing Care Action Modules (STNC-AM) platform improve patients' psychological health over a two-month period. BACKGROUND: Stroke survivors often are left with a disability after a stroke, which can have an impact on their physical and mental health. Therefore, it is necessary for stroke patients to have tailored programmes in the face of post-stroke mental health concerns and the need for care information. DESIGN: A non-randomised controlled pilot study was conducted. METHODS: Participants included 44 post-stroke patients at a medical university hospital, between 1 August 2019-28 February 2021, of whom 24 were assigned to the control group and 20 were assigned to the intervention (STNC-AM). Data were analysed on an intention-to-treat basis. We used the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) Checklist (case-control studies) for this study. RESULTS: There were no statistical differences between the two groups at baseline. At the end of two months, however, the scores for resilience, depression and positive factors illness representation were statistically different between the two groups (p < .05). The results of the generalised estimating equation model analysis indicated that resilience and anxiety remained more significant in decreasing depression in the intervention group than in the control group. CONCLUSION: This preliminary trial suggests that, although action modules may be associated with a decrease in depression post-stroke, part of this effect was likely associated with an increase in resilience and a decrease in anxiety of the patients. RELEVANCE TO CLINICAL PRACTICE: The STNC-AM platform provides a coaching platform that helps patients and caregivers to be effective and accessible.


Asunto(s)
Resiliencia Psicológica , Accidente Cerebrovascular , Humanos , Ansiedad , Depresión , Salud Mental , Calidad de Vida , Accidente Cerebrovascular/complicaciones , Accidente Cerebrovascular/psicología , Sobrevivientes
3.
Chin J Physiol ; 58(4): 237-43, 2015 Aug 31.
Artículo en Inglés | MEDLINE | ID: mdl-26211647

RESUMEN

The phenol nerve block has been widely used in clinical practice for spasticity reduction, but the correlation between the dosage of phenol and its effectiveness has seldom been discussed. The objective was to determine the optimal duration of phenol in contact with the nervous tissue and to investigate the dose-response relationship of 5% aqueous phenol solution by percutaneous nerve block in rats. Group I (n = 8) received sciatic nerve block by bathing the nerves in phenol solution, and group II (n = 40) by injecting phenol percutaneously. Group IIa to IId received different volumes (0.80, 0.16, 0.08 and 0.04 ml) and group IIe received normal saline. Compound muscle action potential (CMAP) was measured pre-injection and at 90 and 270 sec after injection and after surgical exposure of the nerves. The duration of CMAP reduced by 10%, 25%, 50%, 75% and 100% after phenol injection was also recorded. The mean latency for the evoked response to subside in direct phenol application (group I) and percutaneous nerve block (group IIa) were 73.5 ± 5.9 and 62.4 ± 7.6 sec, respectively. There was no statistical difference for the time periods in the blocking effect elicited by phenol solution between these two methods. Ninety sec was set as the optimal duration for phenol to produce complete conduction blockage. Higher volume of phenol produced more significant blocking effect at 90 and 270 sec after injection. Percutaneous injection with 0.16 ml of phenol solution had the same blocking effect as 0.8 ml. The continuous injection model for percutaneous phenol block indeed used significantly more phenol than actually needed. Clinically, the progressive injection model can be used to minimize injection volume.


Asunto(s)
Bloqueo Nervioso/métodos , Fenol/farmacología , Nervio Ciático/efectos de los fármacos , Potenciales de Acción/efectos de los fármacos , Animales , Relación Dosis-Respuesta a Droga , Masculino , Ratas , Ratas Wistar , Factores de Tiempo
4.
Asian Nurs Res (Korean Soc Nurs Sci) ; 18(2): 141-147, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38685559

RESUMEN

PURPOSE: Stroke survivors and their informal family caregivers may share the impact of the disease, which may affect family functioning and quality of life (QoL) for both. This study compared the perceptions of stroke survivors and informal family caregivers regarding family functioning and QoL and examined the QoL of those reporting effective versus ineffective family functioning. METHODS: A cross-sectional study design and convenience sampling were used. Stroke survivor-informal family caregiver dyads were recruited from a medical university hospital. We assessed participants' demographic and clinical variables, including disease severity, family functioning, and QoL. Independent t-test, paired t-test, Wilcoxon signed-rank test, and Mann-Whitney U test were used to analyze the data. RESULTS: Seventy-one stroke survivor-informal family caregiver dyads participated in the current study. Most stroke survivors and informal family caregivers reported effective family functioning, with no significant differences. However, significant differences existed in the seven domains (physical functioning, role-physical, bodily pain, general health, vitality, social functioning, and role-emotional) of QoL, except emotional health. Stroke survivors reporting ineffective family functioning had a significantly lower mental component summary score, unlike informal family caregivers. CONCLUSIONS: Our findings suggest that family functioning is crucial to ensure stroke survivors' QoL, particularly regarding their mental health. Health professionals should prioritize mental health assessments and provide appropriate care interventions for stroke survivors in the first 1-6 months after stroke onset.


Asunto(s)
Cuidadores , Calidad de Vida , Accidente Cerebrovascular , Sobrevivientes , Humanos , Calidad de Vida/psicología , Masculino , Femenino , Cuidadores/psicología , Persona de Mediana Edad , Estudios Transversales , Accidente Cerebrovascular/psicología , Anciano , Sobrevivientes/psicología , Adulto , Anciano de 80 o más Años , Familia/psicología
5.
Biochem Biophys Res Commun ; 425(2): 462-7, 2012 Aug 24.
Artículo en Inglés | MEDLINE | ID: mdl-22846578

RESUMEN

Myeloid zinc finger 1 (MZF1) gene belongs to the Kruppel family of zinc finger transcription factors. MZF1 has been suggested to play an important role in the tumorigenesis, invasion, and apoptosis of various tumor cells. However, the role of MZF1 in human cervical cancer remains unclear. To investigate the molecular mechanisms of MZF1 and its functional role in human cervical cancer cell migration and invasion, we experimented on stable SiHa cells overexpressing MZF1. We found that MZF1 overexpression inhibits the migratory and invasive abilities of SiHa cervical cancer cells. In addition, the overexpression of MZF1 significantly reduces MMP-2 protein and mRNA levels. Luciferase and ChIP assays suggested that MZF1 directly binds to MMP-2 gene regulatory sequences in vivo and suppresses MMP-2 promoter activity in vitro. This study shows that MZF-1 represses MMP-2 transcription and suggests that this repression may be linked to inhibition of human cervical cancer cell migration and metastasis.


Asunto(s)
Regulación Enzimológica de la Expresión Génica , Regulación Neoplásica de la Expresión Génica , Factores de Transcripción de Tipo Kruppel/metabolismo , Metaloproteinasa 2 de la Matriz/genética , Neoplasias del Cuello Uterino/patología , Secuencia de Bases , Línea Celular Tumoral , Movimiento Celular , Regulación hacia Abajo , Femenino , Humanos , Factores de Transcripción de Tipo Kruppel/genética , Datos de Secuencia Molecular , Invasividad Neoplásica , Regiones Promotoras Genéticas , Transcripción Genética , Neoplasias del Cuello Uterino/enzimología
6.
Arch Toxicol ; 86(2): 263-73, 2012 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21964635

RESUMEN

Fisetin is a naturally occurring flavonoid that has been reported to inhibit the proliferation and to induce apoptotic cell death in several tumor cells. However, the apoptosis-inducing effect of fisetin on tumor cell lines was investigated besides HeLa cells. In this study, we found that fisetin induced apoptosis of HeLa cells in a dose- and time-dependent manner, as evidenced by nuclear staining of 4'-6-Diamidino-2-phenylindole (DAPI), flow cytometry assay, and Annexin-V/PI double-labeling. In addition, fisetin triggered the activations of caspases-3 and -8 and the cleavages of poly (ADP-ribose) polymerase, resulting in apoptosis induction. Moreover, treatment of HeLa cells with fisetin induced a sustained activation of the phosphorylation of ERK1/2, and inhibition of ERK1/2 by PD98059 (MEK1/2 inhibitor) or transfection with the mutant ERK1/2 expression vector significantly abolished the fisetin-induced apoptosis through the activation of caspase-8/-3 pathway. The in vivo xenograft mice experiments revealed that fisetin significantly reduced tumor growth in mice with HeLa tumor xenografts. In conclusion, our results indicated that fisetin exhibited anti-cancer effect and induced apoptosis in HeLa cell lines both in vitro and in vivo.


Asunto(s)
Antineoplásicos Fitogénicos/farmacología , Apoptosis/efectos de los fármacos , Caspasa 3/metabolismo , Caspasa 8/metabolismo , Quinasas MAP Reguladas por Señal Extracelular/metabolismo , Flavonoides/farmacología , Neoplasias del Cuello Uterino/tratamiento farmacológico , Animales , Activación Enzimática/efectos de los fármacos , Femenino , Flavonoles , Células HeLa , Humanos , Ratones , Proteína Quinasa 1 Activada por Mitógenos/metabolismo , Proteína Quinasa 3 Activada por Mitógenos/metabolismo , Neoplasias del Cuello Uterino/metabolismo , Neoplasias del Cuello Uterino/patología
7.
Radiol Med ; 117(3): 500-6, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22020425

RESUMEN

PURPOSE: The authors sought to study the relationship between Doppler ultrasonography and deterioration of renal function in patients with spinal cord injury. MATERIALS AND METHODS: Nineteen patients who underwent follow-up with radioisotopic renography were evaluated. Median patient age was 50 [interquartile ratio (IQR) 35-57] years, and time since injury was 4.7 (IQR 1.3-9.2) years. Following Doppler ultrasound, patients were divided into groups based on baseline renal resistive index (RRI): normal RRI (≤ 0.7), group 1 (n=14); and abnormal RRI (> 0.7), group 2 (n=5), and were followed up with radioisotopic renography 1 or more years later. Annual change in effective renal plasma flow (ERPF) was analysed. RESULTS: The 38 kidneys (two for each patient) were stratified by initial RRI, with 28 in group 1 and ten in group 2. Result of univariate generalised estimation equation (GEE) analysis for the factors affecting the change in effective renal plasma flow (ERPF) indicated that the high RRI value (RRI > 0.7) correlated with the change in ERPF. ERPF value in group 2 was significantly decreased (p=0.01) by an average of 60.33 ml/min (standard error = 23.26). CONCLUSIONS: An RRI > 0.7 is a risk factor for future renal function deterioration in patients with spinal cord injury. Thus, annual Doppler ultrasonography to assess the RRI and the degree of hydronephrosis is recommended.


Asunto(s)
Riñón/fisiopatología , Traumatismos de la Médula Espinal/fisiopatología , Ultrasonografía Doppler , Adulto , Estudios de Seguimiento , Humanos , Persona de Mediana Edad , Renografía por Radioisótopo , Flujo Plasmático Renal
8.
Spinal Cord Ser Cases ; 8(1): 78, 2022 09 01.
Artículo en Inglés | MEDLINE | ID: mdl-36050309

RESUMEN

INTRODUCTION: Neurofibromatosis type 1 (NF-1) is an autosomal-dominant disorder affecting 1 in 3000 individuals worldwide. NF-1 is characterized by café-au-lait macules and peripheral nerve sheath tumors. Patients with NF-1 frequently exhibit bony dysplasia, including spinal deformities such as scoliosis or kyphosis, pseudarthrosis of the tibia, and soft tissue tumors. Some patients with NF-1 exhibit spinal changes, including acutely angled cervical kyphosis. Prior studies have also described arteriovenous (AV) fistulas in individuals with NF-1, as well as a predisposition to cervical fistulas which display symptoms secondary to mass effect, rather than hemorrhage. Sometimes, fistulas are incidentally detected during evaluations for cervical kyphotic deformities. CASE PRESENTATION: The case herein describes a patient with NF-1 who exhibited a severe cervical spinal kyphotic deformity and a vertebral AV fistula. The patient initially presented with neck pain that radiated to all four limbs and resulted in limb weakness. DISCUSSION: Spinal kyphosis is common in patients with NF-1, and if dystrophic changes are noted on plain radiographs, MRI should be considered for the further survey of potential spinal vascular lesions.


Asunto(s)
Fístula Arteriovenosa , Cifosis , Neurofibromatosis 1 , Fístula Arteriovenosa/complicaciones , Fístula Arteriovenosa/diagnóstico por imagen , Fístula Arteriovenosa/patología , Vértebras Cervicales/diagnóstico por imagen , Vértebras Cervicales/patología , Humanos , Cifosis/complicaciones , Cifosis/diagnóstico por imagen , Neurofibromatosis 1/complicaciones , Neurofibromatosis 1/diagnóstico , Neurofibromatosis 1/patología , Cuadriplejía/complicaciones , Cuadriplejía/etiología
9.
World J Clin Cases ; 9(15): 3787-3795, 2021 May 26.
Artículo en Inglés | MEDLINE | ID: mdl-34046484

RESUMEN

BACKGROUND: Diabetic ketoacidosis (DKA) is a serious complication of type 1 diabetes mellitus (T1DM). Very rarely does DKA lead to cerebral edema, and it is even rarer for it to result in cerebral infarction. Bilateral internal carotid artery occlusion (BICAO) is also rare and can cause fatal stroke. Moreover, case reports about acute cerebral infarction throughout both internal carotid arteries with simultaneous BICAO are very scarce. In this study, we present a patient with BICAO, T1DM, hypertension, and hyperlipidemia, who had a catastrophic bilateral cerebral infarction after a DKA episode. We briefly introduce BICAO and the mechanisms by which DKA results in cerebral infarction. CASE SUMMARY: A 41-year-old woman presented with ischemic stroke that took place 3 mo prior over the left corona radiata, bilateral frontal lobe, and parietal lobe with right hemiplegia and Broca's aphasia. She had a history of hypertension for 5 years, hyperlipidemia for 4 years, hyperthyroidism for 3 years, and T1DM for 31 years. The first brain magnetic resonance imaging not only revealed the aforementioned ischemic lesions but also bilateral internal carotid artery occlusion. She was admitted to our ward for rehabilitation due to prior stroke sequalae. DKA took place on hospital day 2. On hospital day 6, she had a new massive infarction over the bilateral anterior cerebral artery and middle cerebral artery territory. After weeks of aggressive treatment, she remained in a coma and on mechanical ventilation due to respiratory failure. After discussion with her family, compassionate extubation was performed on hospital day 29 and she died. CONCLUSION: DKA can lead to cerebral infarction due to several mechanisms. In people with existing BICAO and several stroke risk factors such as hypertension, T1DM, hyperlipidemia, DKA has the potential to cause more serious ischemic strokes.

10.
Clin Nurs Res ; 30(7): 1030-1037, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-33629607

RESUMEN

The purpose of this study is twofold: to examine the relationship between illness representation and self-efficacy and to test the determinants and the effect of self-efficacy, resilience, and stroke impact on fatigue in middle-aged stroke survivors. This study used a cross-sectional and quantitative approach. The instruments included the Chronic Disease Self-Efficacy Scale, Stroke Impact Scale, Resilience Scale, and Fatigue Impact Scale. Structural equation modeling (SEM) was performed to analyze the data. A total of 63 patients with stroke (39 male and 24 female) were recruited form a medical university hospital. The results showed that patients' illness representation had a significantly effect on self-efficacy for managing disease. In addition, SEM analysis demonstrated that self-efficacy, resilience and stroke impact influenced fatigue, explaining 20.6% of the variance in fatigue. It was concluded that to improve patient fatigue, we believe it is imperative to design interventions that improve patients' self-efficacy, promote patients' resilience, and better function.


Asunto(s)
Accidente Cerebrovascular , Estudios Transversales , Fatiga , Femenino , Humanos , Masculino , Persona de Mediana Edad , Encuestas y Cuestionarios , Sobrevivientes
11.
Am J Phys Med Rehabil ; 99(11): 1056-1066, 2020 11.
Artículo en Inglés | MEDLINE | ID: mdl-32149818

RESUMEN

Neurogenic bladder disorders are common among patients with spinal cord lesions, which often result in upper and lower urinary tract complications. Urinary tract infection has remained the most frequent type of infection in this population. Our aim is to review systematically the literature on the outcome of different intervention methods to reduce urinary tract infection incidence. A literature search was conducted in the database of Medline, PubMed, Embase, and Scopus. After screening 1559 articles, 42 were included in this review. The intervention methods can be categorized into the four following groups: (1) indwelling catheterization and intermittent catheterization, (2) medications, (3) surgery, and (4) others. Intermittent catheterization is still the most recommended treatment for persons with spinal cord lesions. Hydrophilic catheters are more suitable for adults than children because of complex handling. Bladder management with spontaneous voiding is initially considered for infants and toddlers with spina bifida. Antibiotics treatment should be based on the results of urine cultures. Shortening the course of antibiotics treatment can reduce its adverse effects but may increase urinary tract infection recurrence. Because botulinum toxin injections and bladder surgery can improve urodynamic function, both are conducive toward lowering urinary tract infection incidence.


Asunto(s)
Enfermedades de la Médula Espinal/complicaciones , Vejiga Urinaria Neurogénica/complicaciones , Cateterismo Urinario/métodos , Infecciones Urinarias/prevención & control , Procedimientos Quirúrgicos Urológicos/métodos , Agentes Urológicos/uso terapéutico , Adolescente , Adulto , Antibacterianos/administración & dosificación , Toxinas Botulínicas/administración & dosificación , Niño , Preescolar , Femenino , Humanos , Incidencia , Lactante , Masculino , Persona de Mediana Edad , Traumatismos de la Médula Espinal/complicaciones , Resultado del Tratamiento , Vejiga Urinaria Neurogénica/etiología , Infecciones Urinarias/epidemiología , Infecciones Urinarias/etiología , Adulto Joven
12.
Arch Phys Med Rehabil ; 90(5): 832-6, 2009 May.
Artículo en Inglés | MEDLINE | ID: mdl-19406304

RESUMEN

OBJECTIVE: To determine the effectiveness of a combined method for localizing external urethral sphincter for transperineal injection of botulinum toxin A (BTX-A) in the treatment of detrusor sphincter dyssynergia (DSD) in patients with spinal cord injury (SCI). DESIGN: A prospective, open-label trial. SETTING: A rehabilitation hospital affiliated with a medical university. PARTICIPANTS: Eighteen SCI patients with voiding dysfunction resulting from urodynamically confirmed DSD. INTERVENTIONS: 100 units of BTX-A injected transperineally into the external urethral sphincter, which was localized using combined fluoroscopic and electromyographic guidance, using a Foley catheter inserted for visualization of vesicourethral anatomy. MAIN OUTCOME MEASURES: (1) postvoid residual volume, (2) leak point pressure, (3) maximal intravesical pressure, (4) maximal urethral pressure, (5) quality of life measures for urination, quantified by the Quality of Life Index (QLI). RESULTS: Positive clinical outcomes were observed in all 18 patients in this study. The mean reductions in postvoid residual volume, leak point pressure, maximal intravesical pressure, and maximal urethral pressure before and after BTX-A injection were 183ml, 37cm H2O, 45cm H2O, and 92cm H2O, respectively (all P values <.05). The mean QLI significantly improved from -0.68+/-0.27 to 0.66+/-0.19 (P<.01). No significant side effects were noted after injection. The clinical therapeutic effects have shown reductions in occurrence and degree of autonomic dysreflexia, vesicoureteral reflux, hydronephrosis, and urinary tract infection. The bladder management programs also obtained improvements in our patients, either doing intermittent catheterizations less frequently, or resuming spontaneous voiding without indwelling catheters. CONCLUSION: With this combined method for localization of the external urethral sphincter, transperineal injection of BTX-A was safe, accurate, easy to perform, and effective for treatment of DSD in patients with SCI.


Asunto(s)
Toxinas Botulínicas Tipo A/uso terapéutico , Electromiografía/métodos , Fluoroscopía/métodos , Traumatismos de la Médula Espinal/complicaciones , Vejiga Urinaria Neurogénica/tratamiento farmacológico , Adulto , Estudios de Seguimiento , Humanos , Inyecciones Intralesiones , Puntaje de Gravedad del Traumatismo , Masculino , Perineo , Estudios Prospectivos , Medición de Riesgo , Sensibilidad y Especificidad , Índice de Severidad de la Enfermedad , Traumatismos de la Médula Espinal/diagnóstico , Resultado del Tratamiento , Vejiga Urinaria Neurogénica/diagnóstico , Vejiga Urinaria Neurogénica/etiología , Urodinámica , Adulto Joven
13.
Arch Phys Med Rehabil ; 89(9): 1748-52, 2008 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-18760159

RESUMEN

OBJECTIVE: To evaluate the urodynamic responses to anal stretch in patients with detrusor sphincter dyssynergia (DSD). DESIGN: Descriptive study. SETTING: Rehabilitation hospital affiliated with a medical university. PARTICIPANTS: Patients (N=36) with suprasacral spinal cord injury who had DSD confirmed on cystometrography. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: Detrusor pressure, urethral pressure, and summated electromyogram of external urethral sphincter on cystometrography. RESULTS: The urodynamic responses to anal stretch were evaluated in the first half (time 1, 1-15s) and the second half (time 2, 16-30s) of the evaluation time period. The activity of external urethral sphincter was reduced significantly in both times 1 and 2 (P<0.5). The medians of reduction percentages were 33% and 35% for times 1 and 2, respectively. The change of detrusor pressure was not significant in either time 1 or time 2. CONCLUSIONS: Anal stretch can reduce the activity of external urethral sphincter without significant change in detrusor pressure.


Asunto(s)
Canal Anal/fisiología , Estimulación Física/métodos , Traumatismos de la Médula Espinal/complicaciones , Traumatismos de la Médula Espinal/fisiopatología , Vejiga Urinaria Neurogénica/fisiopatología , Trastornos Urinarios/fisiopatología , Análisis de Varianza , Femenino , Humanos , Masculino , Persona de Mediana Edad , Traumatismos de la Médula Espinal/rehabilitación , Estadísticas no Paramétricas , Vejiga Urinaria Neurogénica/etiología , Vejiga Urinaria Neurogénica/rehabilitación , Trastornos Urinarios/etiología , Trastornos Urinarios/rehabilitación , Urodinámica
14.
Med Ultrason ; 24(3): 376-377, 2022 08 31.
Artículo en Inglés | MEDLINE | ID: mdl-36047416
16.
Life Sci ; 149: 25-33, 2016 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-26898122

RESUMEN

AIMS: There is growing evidence of an increased prevalence of osteoarthritis (OA) among people with diabetes. Synovial inflammation and increased expression of cyclooxygenase-2 (COX-2) are two key features of patients with OA. Methylglyoxal (MGO) is a common intermediate in the formation of advanced glycation end-products, and its concentration is also typically higher in diabetes. In this study, we investigated the effects of the treatment of different MGO concentrations to rabbit HIG-82 synovial cells on COX-2 expression. MAIN METHODS: The MGO induced COX-2 mRNA expression was detected by quantitative polymerase chain reaction. The MGO induced COX-2 protein production and its signaling pathways were detected by western blotting. The nuclear factor-kappa B (NF-κB) nuclear translocation by MGO was examined by immunofluorescence. KEY FINDINGS: In the present study, we find that MGO has no toxic effects on rabbit synovial cells under the experimental conditions. Our analysis demonstrates that MGO induced COX-2 mRNA and protein production. Moreover, MGO induces p38-dependent COX-2 protein expression as well as the phosphorylations of extracellular signal-regulated kinase, c-Jun N-terminal kinase (JNK), and Akt/mammalian target of rapamycin (mTOR)/p70S6K; however, inhibition of JNK and Akt/mTOR/p70S6K phosphorylations further activates COX-2 protein expression. Furthermore, MGO is shown to activate of nuclear factor-kappa B (NF-κB) nuclear translocation. SIGNIFICANCE: Our results suggest that MGO can induce COX-2 expression via a p38-dependent pathway and activate NF-κB nuclear translocation in synovial cells. These results provide insight into the pathogenesis of the synovial inflammation under the diabetic condition associated with higher MGO levels.


Asunto(s)
Ciclooxigenasa 2/biosíntesis , Sistema de Señalización de MAP Quinasas/fisiología , FN-kappa B/metabolismo , Piruvaldehído/farmacología , Membrana Sinovial/metabolismo , Proteínas Quinasas p38 Activadas por Mitógenos/biosíntesis , Animales , Supervivencia Celular/efectos de los fármacos , Supervivencia Celular/fisiología , Relación Dosis-Respuesta a Droga , Regulación Enzimológica de la Expresión Génica , Sistema de Señalización de MAP Quinasas/efectos de los fármacos , Conejos , Membrana Sinovial/efectos de los fármacos
17.
Anticancer Res ; 31(12): 4301-6, 2011 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-22199295

RESUMEN

BACKGROUND: The tumor suppressor p53 protein plays a critical role in different cellular processes in response to DNA damage and it is responsible for transcriptional induction of the p21 (CDKN1A/WAF1/CIP1) gene. Both p53 and p21 are thought to play major roles in the development of human malignancy. Polymorphic variants of p53 at codon 72, and CDKN1A at codon 31, have been found to be associated with cancer susceptibility, but few studies have investigated their effect on endometriosis risk. MATERIALS AND METHODS: In this hospital-based case-control study, we investigated the association of p53 codon 72 and CDKN1A codon 31 polymorphisms with endometriosis susceptibility in a Taiwanese population. In total, 180 patients with endometriosis, and 330 age-matched controls in Central Taiwan were recruited and genotyped. RESULTS: We found a significant difference in the distribution of the p53 genotype, but not the CDKN1A genotype, between the endometriosis and control groups. Individuals with the C (Pro) allele at p53 codon 72 had a 1.6-fold increased odds ratio of endometriosis, and those with Arg/Pro and Pro/Pro genotypes for p53 codon 72 had a 1.84- and 2.74-fold (95% confidence interval=1.17-2.92 and 1.58-4.74) increased risk of endometriosis compared to those with Arg/Arg, respectively. The distribution of haplotype combinations of p53 codon 72 and CDKN1A codon 31 was statistically different in the endometriosis and control groups. The percentages of the three subgroups with p53 CC homozygote were all higher in the endometriosis group than in the control group. CONCLUSION: Our findings suggest that the C (Pro) allele of p53 codon 72 may be associated with the development of endometriosis, and could serve as a potential biomarker for early prediction of this disease.


Asunto(s)
Biomarcadores/metabolismo , Inhibidor p21 de las Quinasas Dependientes de la Ciclina/genética , Endometriosis/genética , Genes p53 , Adulto , Alelos , Estudios de Casos y Controles , Proliferación Celular , Codón , Femenino , Frecuencia de los Genes , Genotipo , Haplotipos , Humanos , Polimorfismo Genético , Proteína p53 Supresora de Tumor/genética
19.
J Rehabil Med ; 40(9): 744-8, 2008 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-18843427

RESUMEN

OBJECTIVE: To evaluate the effect of a single cystoscopic injection of botulinum toxin to the external urethral sphincter in treating detrusor external sphincter dyssynergia. DESIGN: An open treatment trial with pre- and post-treatment evaluations. SUBJECTS: A total of 20 suprasacral spinal cord injured patients with pure detrusor external sphincter dyssynergia. METHODS: A single dose of 100 IU botulinum toxin A was applied into the external urethral sphincter via cystoscopy. Outcome measurements included maximal detrusor pressure, maximal urethral pressure, detrusor leak point pressure, integrated electromyography, and maximal pressure on static urethral pressure profilometry obtained 4 weeks post-treatment. Post-voiding residuals were checked pre- and post-injection. RESULTS: There were significant reductions in integrated electro notmyography and static and maximal urethral pressure, but not in maximal detrusor pressure and detrusor leak point pressure after treatment. Post-voiding residuals were significantly decreased at all evaluation periods. In the sub-group analysis, patients who showed good effects of treatment had significantly lower baseline integrated electro-myography (p<0.05). CONCLUSION: This study demonstrates the effect of a single cystoscopic injection of botulinum toxin in detrusor external sphincter dyssynergia. Integrated electromyography is a good evaluation tool for the net effect and dosage of botulinum toxin. Patients with severe spasticity over the external urethral sphincter may require repeated injections or higher doses.


Asunto(s)
Toxinas Botulínicas Tipo A/administración & dosificación , Fármacos Neuromusculares/administración & dosificación , Traumatismos de la Médula Espinal/complicaciones , Enfermedades Uretrales/terapia , Trastornos Urinarios/terapia , Adulto , Cistoscopía , Electromiografía , Femenino , Humanos , Inyecciones , Masculino , Espasticidad Muscular/etiología , Espasticidad Muscular/fisiopatología , Espasticidad Muscular/terapia , Traumatismos de la Médula Espinal/fisiopatología , Resultado del Tratamiento , Uretra/fisiopatología , Enfermedades Uretrales/etiología , Enfermedades Uretrales/fisiopatología , Trastornos Urinarios/etiología , Trastornos Urinarios/fisiopatología , Urodinámica/fisiología
20.
Arch Phys Med Rehabil ; 87(11): 1526-9, 2006 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-17084130

RESUMEN

OBJECTIVE: To present the results of scintigraphic evaluation, using the Gaussian curve fitting method, via 3 parameters of oropharyngeal swallow: (1) pharyngeal transit time, (2) premature pharyngeal entry, and (3) postswallow pharyngeal stasis while ingesting liquid. DESIGN: A descriptive study. SETTING: A rehabilitation hospital affiliated with a medical university. PARTICIPANTS: Eighteen healthy subjects. INTERVENTION: All 18 subjects received scintigraphic swallow examination to evaluate dynamic swallow process of 5 mL of liquid. MAIN OUTCOME MEASURES: The Gaussian curve fitting method was used to calculate the pharyngeal transit time, premature pharyngeal entry, and postswallow pharyngeal stasis. RESULTS: The mean pharyngeal transit time was .71 seconds. The maximal percentage of premature pharyngeal entry was 3%. The maximal percentage of postswallow pharyngeal stasis was 9%. CONCLUSIONS: The Gaussian curve fitting can be used as an objective and time-saving method to calculate the parameters in scintigraphic swallowing examination. Our results approximate other researchers' reports.


Asunto(s)
Trastornos de Deglución/diagnóstico por imagen , Deglución , Faringe/diagnóstico por imagen , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Distribución Normal , Cintigrafía
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