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1.
Prague Med Rep ; 124(1): 58-66, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36763832

RESUMEN

Priapism is a rare condition in the newborn. The aim of this study was to investigate the demographic, etiologic and clinical features of neonatal priapism. We retrospectively analysed the data of 11 patients diagnosed with neonatal priapism in the neonatal intensive care unit between 2000 and 2019. Priapism was defined as an erection in the neonatal period, lasting more than 4 hours. Etiological examinations revealed polycythemia in one (9.09%) patient, D-dimer elevation in three patients, and heterozygous methyltetrahydrofolate 667 gene mutations in one patient. Other patients were considered idiopathic. Detumescence was achieved in all 11 (100%) patients during the follow-up period. The median hospitalization duration was 6 (IQR [4, 8]; range, 2-9) days. The median follow-up duration was 38 (IQR [30, 42]; range, 13-94) months for patients followed-up in our hospital after discharge. Neonatal priapism is a rare condition. Successful treatment results can be achieved with conservative methods. Data acquired from our study showed that diseases with a tendency to hypercoagulation belong to the etiology by damaging penile microcirculation and make the response to conservative treatment more challenging.


Asunto(s)
Priapismo , Masculino , Recién Nacido , Humanos , Priapismo/diagnóstico , Priapismo/etiología , Priapismo/terapia , Estudios Retrospectivos , Pene , Erección Peniana , Alta del Paciente
2.
Int J Clin Pract ; 2022: 2663108, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-35685484

RESUMEN

Background: The gold standard treatment method for end-stage renal disease (ESRD) is renal transplantation (RT). RT can be done with open or minimally invasive surgical methods. We aimed to compare the outcomes between patients who underwent robot-assisted renal transplantation (RART) and open renal transplantation (ORT). Methods: Data of the patients who underwent ORT or RART in two institutions between June 2015 and February 2020 were retrospectively reviewed. Patients who underwent live donor RT were included, and all donor nephrectomy procedures were performed by the laparoscopic technique. Demographic data, ischemia times, anastomosis times, operation times, and postoperative complications were recorded. Results: 98 patients were included in the ORT group, while 91 patients were included in the RART group. There was a significant difference between the two groups regarding mean patient age. While total ischemia time was 86.9 ± 7 minutes in the RART group, it was calculated as 71.2 ± 3.3 minutes in the ORT group, with a significant difference. The anastomosis time was significantly shorter in the ORT group than in the RART group. The incision length and duration of hospital stay were significantly shorter, visual analogue scores were significantly lower, and estimated blood loss was less in the RART group than in the ORT group. Conclusion: Both ORT and RART are effective and safe methods for treating ESRD. According to our study, RART is associated with relatively longer ischemia times but lower complication rates and higher patient comfort.


Asunto(s)
Fallo Renal Crónico , Trasplante de Riñón , Robótica , Humanos , Isquemia , Fallo Renal Crónico/cirugía , Nefrectomía/métodos , Estudios Retrospectivos
3.
Prostate ; 81(12): 913-920, 2021 09.
Artículo en Inglés | MEDLINE | ID: mdl-34224165

RESUMEN

OBJECTIVES: To develop a model for predicting biochemical recurrence (BCR) in patients with long follow-up periods using clinical parameters and the machine learning (ML) methods. MATERIALS METHOD: Patients who underwent robot-assisted radical prostatectomy between January 2014 and December 2019 were retrospectively reviewed. Patients who did not have BCR were assigned to Group 1, while those diagnosed with BCR were assigned to Group 2. The patient's demographic data, preoperative and postoperative parameters were all recorded in the database. Three different ML algorithms were employed: random forest, K-nearest neighbour, and logistic regression. RESULTS: Three hundred and sixty-eight patients were included in this study. Among these patients, 295 (80.1%) did not have BCR (Group 1), while 73 (19.8%) had BCR (Group 2). The mean duration of follow-up and duration until the diagnosis of BCR was calculated as 35.2 ± 16.7 and 11.5 ± 11.3 months, respectively. The multivariate analysis revealed that NLR, PSAd, risk classification, PIRADS score, T stage, presence or absence of positive surgical margin, and seminal vesicle invasion were predictive for BCR. Classic Cox regression analysis had an area under the curve (AUC) of 0.915 with a sensitivity and specificity of 90.6% and 79.8%. The AUCs for receiver-operating characteristic curves for random forest, K nearest neighbour, and logistic regression were 0.95, 0.93, and 0.93, respectively. All ML models outperformed the conventional statistical regression model in the prediction of BCR after prostatectomy. CONCLUSION: The construction of more reliable and potent models will provide the clinicians and patients with advantages such as more accurate risk classification, prognosis estimation, early intervention, avoidance of unnecessary treatments, relatively lower morbidity and mortality. The ML methods are cheap, and their powers increase with increasing data input; we believe that their clinical use will increase over time.


Asunto(s)
Algoritmos , Aprendizaje Automático/tendencias , Recurrencia Local de Neoplasia/diagnóstico , Prostatectomía/tendencias , Neoplasias de la Próstata/cirugía , Procedimientos Quirúrgicos Robotizados/tendencias , Anciano , Estudios de Cohortes , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Prostatectomía/métodos , Neoplasias de la Próstata/diagnóstico , Procedimientos Quirúrgicos Robotizados/métodos , Resultado del Tratamiento
4.
Int J Clin Pract ; 75(8): e14309, 2021 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-33932070

RESUMEN

OBJECTIVE: The beta-coronavirus (COVID-19) pandemic has changed the clinical approach of 93% of urologists worldwide, and this situation has affected the use of laparoscopic and robot-assisted laparoscopic methods, which are known as minimally invasive surgery (MIS). This study aimed to determine the effects of the COVID-19 pandemic on MIS in urology practice at national level. DESIGN, SETTING AND PARTICIPANTS: A total of 234 urologists in Turkey participated in an online survey between August 22 and September 23, 2020. OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS: Descriptive statistical analyses were conducted to determine the participants' demographic characteristics and responses to multiple-choice questions. RESULTS: While 54% of urologists stated that they were concerned about the possibility that the patients planned to undergo MIS were carrying COVID-19 or false-negative for the virus, 51% considered that open surgery was safer than MIS in this regard. The pandemic led to a difference in the preferences of 40% of the urologists in relation to open or MIS methods, and during the pandemic, 39% of the urologists always directed their patients to open surgery. It was determined that during the pandemic, there was a statistical decrease in the intensity and weekly application of MIS methods among all surgical procedures compared to the pre-pandemic (P < .001 and P < .001, respectively). MIS was preferred for oncological operations by 97.3% of the urologists during the pandemic, with the most performed operation being radical nephrectomy (90.7%). Among oncological operations, radical prostatectomy was most frequently postponed. To prevent virus transmission during MIS, 44% of the urologists reported that they always used an additional evacuation system and 52% took additional precautions. There were a total of 27 healthcare workers who took part in MIS and tested positive for COVID-19 after the operation. CONCLUSIONS: Although the number of operations has decreased during the ongoing pandemic, MIS is a method that can be preferred due to its limited contamination and mortality in urology practice provided that safety measures are taken and guideline recommendations are followed.


Asunto(s)
COVID-19 , Urología , Humanos , Masculino , Procedimientos Quirúrgicos Mínimamente Invasivos , Pandemias , SARS-CoV-2 , Turquía , Procedimientos Quirúrgicos Urológicos
5.
Can J Physiol Pharmacol ; 97(5): 413-421, 2019 May.
Artículo en Inglés | MEDLINE | ID: mdl-30730760

RESUMEN

Statins are determined to have various pleiotropic effects apart from their lipid-lowering properties. Herein, we investigated the direct effects of atorvastatin on gastric smooth muscle tone. Atorvastatin effectively relaxed isolated rat gastric fundus strips precontracted with acetylcholine, potassium chloride, and serotonin. Incubation of the strips with nitric oxide synthase inhibitor, l-NOARG (10-4 M, 20 min), l-type voltage-operated Ca2+ channel (VOCC) blocker, nifedipine (10-6 M, 30 min), KATP channel blocker, glibenclamide (10-5 M, 30 min), or precursor of cholesterol, mevalonate (10-2 M, 45 min) did not change the relaxations to atorvastatin. However, pretreatment of fundus strips with atorvastatin (3×10-5-3×10-4 M, 30 min) inhibited the contractions to calcium chloride (10-4-10-1 M), acetylcholine (10-4 M), and caffeine (20 mM) in the calcium-free medium. Moreover, atorvastatin reduced the contractions induced by sarco-endoplasmic reticulum Ca2+-ATPase (SERCA) inhibitor, cyclopiazonic acid (10-7-3×10-5 M). The current study demonstrated that atorvastatin produces an acute relaxant effect on gastric fundus strips, which appears to be mediated by several Ca2+-signalling mechanisms such as the blockade of l-type VOCC-independent Ca2+ entry, decrease in smooth muscle Ca2+ sensitivity, inhibition of IP3- and ryanodine-sensitive intracellular stores to mediate Ca2+ release, as well as the activation of SERCA. This acute relaxing effect seems unlikely to be related with nitric oxide, KATP channels, and the mevalonate pathway.


Asunto(s)
Atorvastatina/farmacología , Señalización del Calcio/efectos de los fármacos , Relajación Muscular/efectos de los fármacos , Músculo Liso/efectos de los fármacos , Músculo Liso/fisiología , Animales , Fundus Gástrico/efectos de los fármacos , Fundus Gástrico/fisiología , Masculino , Músculo Liso/citología , Ratas , Ratas Wistar , ATPasas Transportadoras de Calcio del Retículo Sarcoplásmico/metabolismo
6.
Prague Med Rep ; 120(4): 144-149, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-31935350

RESUMEN

Gossypiboma refers to a retained foreign object that was forgotten in the body cavity during an operation. It is a rare surgical complication that most commonly occurs after intraperitoneal abdominal emergency surgical procedures, but may also occur after virtually any type of operation. Gossypiboma can be confused with neoplastic lesions and abscess. Clinical examination and radiological findings may sometimes mislead the physician. We intend to present our cases, which is thought to be a kidney tumour and bladder cancer but resulted gossypiboma which is a condition that is caused by a forgotten sponge during the operation and it can mimic the cancer. During the operation, the team must work in coordination and be careful. Unnecessary operations in such situation can significantly increase the patient's morbidity.


Asunto(s)
Cuerpos Extraños , Humanos , Tapones Quirúrgicos de Gaza
7.
Chemistry ; 24(64): 16977-16982, 2018 Nov 16.
Artículo en Inglés | MEDLINE | ID: mdl-30203519

RESUMEN

Metal-organic frameworks (MOFs) as methane adsorbents are highly promising materials for applications such as methane-powered vehicles, flare gas capture, and field natural gas separation. Pre- and post-synthetic modification of MOFs have been known to help improve both the overall methane uptake as well as the working capacity. Here, a post-synthetic modification strategy to non-covalently modify MOF adsorbents for the enhancement of the natural gas uptake for the MOF material is introduced. In this study, PCN-250 adsorbents were doped with C10 alkane and C14 fatty acid and their impact on the methane uptake capabilities was investigated. It was found that even trace amounts of heavy hydrocarbons could considerably enhance the raw methane uptake of the MOF while still being regenerable. The doped hydrocarbons are presumably located at the mesoporous defects of PCN-250, thus optimizing the framework-methane interactions. These findings reveal a general approach that can be used to modify the MOF absorbents, improving their ability to be sustainable and renewable natural gas adsorption platforms.

8.
J Pediatr Hematol Oncol ; 38(7): 512-6, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27467370

RESUMEN

INTRODUCTION: We conducted this study to determine the role of iron deficiency (ID) as a risk factor for simple febrile seizure (SFS) in 6- to 60-month-old children. MATERIALS AND METHODS: In this case-control study 100 children aged 6 to 60 months with febrile seizure (FS) (study group) and 100 febrile children without seizures (control group) admitted to Pediatric Departments of Kecioren Training and Research Hospital in between June 2014 and March 2015 were evaluated. Complete blood count, serum iron, plasma ferritin, and total iron binding capacity analyses were performed in children with FS and were compared with controls. RESULTS: Ferritin level was significantly lower in the study group than controls (P<0.05). Compared with the onset of the study (first day), ferritin levels of the study group significantly decreased at the 10th day (P<0.05). At the onset, we were not able to determine ID in 18% of children because of fever. CONCLUSIONS: There was a relationship between low plasma ferritin level and SFS. Low plasma ferritin level may be a risk factor for the development of SFS. For preventing the FS attacks, treatment of present ID and oral supplementary iron therapy should be initiated for children with SFS who have a low plasma ferritin.


Asunto(s)
Ferritinas/sangre , Convulsiones Febriles/sangre , Estudios de Casos y Controles , Preescolar , Suplementos Dietéticos , Humanos , Lactante , Hierro/administración & dosificación , Hierro/sangre
9.
Pediatr Int ; 58(8): 801-4, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-27325428

RESUMEN

Liddle syndrome (LS) is a familial disease characterized by early onset hypertension (HT). Although regarded as rare, its incidence may be greater than expected because the classical findings of hypokalemic metabolic alkalosis with suppressed renin and aldosterone levels are not consistently present. Herein, we present the case of an adolescent boy and maternal relatives who were followed up with misdiagnosis of essential HT for a long duration. Clinical diagnosis of LS was confirmed on genetic analysis. Despite carrying the same mutation, the index patient and the family members manifested heterogeneous phenotypes of the disease including age at presentation, degree of HT, presence of hypokalemia and renal/cardiac complications. LS should be considered in the differential diagnosis of HT in children with a strong family history of HT resistant to conventional treatment; and genetic screening should be performed in these circumstances.


Asunto(s)
ADN/genética , Canales Epiteliales de Sodio/genética , Síndrome de Liddle/genética , Adolescente , Análisis Mutacional de ADN , Diagnóstico Diferencial , Canales Epiteliales de Sodio/metabolismo , Pruebas Genéticas , Humanos , Síndrome de Liddle/diagnóstico , Síndrome de Liddle/metabolismo , Masculino , Linaje , Fenotipo
10.
Exp Eye Res ; 132: 240-8, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25662314

RESUMEN

Retinal relaxing factor (RRF) has recently been identified as a novel paracrine regulator of retinal circulation acting differently from well known mediators of the endothelium and the retina. Herein, we aimed to characterize the relaxing mechanism of the retina, i.e. RRF, by evaluating the role of Ca(+2)-dependent and -independent signaling mechanisms as well as inward rectifier K(+) (Kir) channels. Retinal relaxation was determined by placing a piece of retinal tissue just on top of the precontracted bovine retinal arteries mounted in a wire myograph. The retina produced a complete relaxation response, which display a biphasic character, in depolarized arteries contracted by L-type Ca(2+) channel agonist, Bay k 8644. Blockade of L-type Ca(2+) channel by nifedipine, inhibition of sarcoplasmic reticulum Ca(2+)-ATPase by cyclopiazonic acid or removal of extracellular Ca(2+) did not influence the prominent relaxation to the retina. Originally, retinal relaxation was found to be unaffected from the inhibition of myosin light chain kinase by ML7, whereas, completely abolished in the presence of myosin light chain phosphatase (MLCP) inhibitor, Calyculin A. Moreover, the inhibition of Rho kinase by its putative inhibitor, Y-27632 displayed comparable relaxant effects to RRF in retinal arteries precontracted either by prostaglandin F2α or K(+), and augmented the moderate response to the retina in K(+) precontracted arteries. In addition, retinal relaxation was significantly inhibited and lost its biphasic character in the presence of Kir channel blocker, Ba(2+). Our results suggested that inhibition of Ca(2+) sensitization through the activation of MLCP, possibly via interfering with Rho kinase, and the opening of Kir channels are likely to be involved in the inhibitory influence of RRF on the retinal arteries.


Asunto(s)
Señalización del Calcio/fisiología , Canales de Potasio/fisiología , Retina/fisiología , Arteria Retiniana/fisiología , Análisis de Varianza , Animales , Bloqueadores de los Canales de Calcio/farmacología , Bovinos , Modelos Animales , Bloqueadores de los Canales de Potasio/farmacología , Retina/efectos de los fármacos , Arteria Retiniana/efectos de los fármacos , Transducción de Señal/fisiología , Vasodilatación/fisiología , Quinasas Asociadas a rho/antagonistas & inhibidores , Quinasas Asociadas a rho/fisiología
11.
Prostaglandins Other Lipid Mediat ; 121(Pt A): 53-62, 2015 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-26201058

RESUMEN

Statins are suggested to possess healing properties due to their antioxidant and antiinflammatory effects in animal ulcer models. In contrary, a clinical report indicated the formation of gastric ulcer by the use of atorvastatin. In this study, we aimed to investigate the effects of atorvastatin (0.5, 5 and 50mg/kg, p.o.) after single (acute) and multiple (subchronic, 5 days) applications on indomethacin-induced gastric ulcer in rats. In both acute and subchronic models high dose atorvastatin (50mg/kg), unlike to lower doses (0,5 and 5mg/kg), significantly aggravated ulcer lesions induced by indomethacin (30 mg/kg) although, a direct ulcerogenic influence was lacking. Proulcerogenic effect of atorvastatin are likely to be associated with decreased mucosal defense mechanisms (GSH and PGE2), and increased neutrophil infiltration and proinflammatory factors (TNF-a and iNOS) possibly via independently from mevalonate pathway. Thus, atorvastatin therapy should be monitorized in patients for an increased risk of gastric ulcer particularly when used concomitantly with NSAIDs.


Asunto(s)
Atorvastatina/farmacología , Dinoprostona/metabolismo , Indometacina/farmacología , Neutrófilos/efectos de los fármacos , Óxido Nítrico Sintasa de Tipo II/metabolismo , Úlcera Gástrica/inducido químicamente , Factor de Necrosis Tumoral alfa/metabolismo , Amidinas/farmacología , Animales , Bencilaminas/farmacología , Sinergismo Farmacológico , Femenino , Masculino , Ácido Mevalónico/farmacología , Infiltración Neutrófila/efectos de los fármacos , Neutrófilos/inmunología , Ratas , Úlcera Gástrica/inmunología , Úlcera Gástrica/metabolismo
12.
Compr Psychiatry ; 56: 161-74, 2015 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-25308406

RESUMEN

OBJECTIVE: Familial loading and crucial outcomes of family history of psychopathology in psychiatric disorders have long been recognized. There has been ample literature providing convincing evidence for the importance of family psychopathology in development of emotional disturbances in children as well as worse outcomes in the course of psychiatric disorders. More often, maternal psychopathology seems to have been an issue of interest rather than paternal psychopathology while effects of second-degree familiality have received almost no attention. In this study, we addressed the relations between affected first- and second-degree relatives of probands and categories of psychiatric disorders. METHOD: Subjects were 350 hospitalized psychiatric inpatients, consecutively admitted to psychiatry clinics in Van, Turkey. Mean age was 34.16 (SD±12) and 51.4% of the sample consisted of male patients. Assessment of psychopathology in psychiatric probands was conducted based on DSM-IV TR. Familial loading of psychiatric disorders amongst first- and second-degree relatives of patients were initially noted primarily relying on patients' retrospective reports, and confirmed by both phone call and following official health records via the Medical Knowledge System. We analyzed the data using latent class analysis approach. RESULTS: We found four patterns of familial psychopathology. Latent homogeneous subsets of patients due to familial characteristics were as paternal kinship psychopathology with schizophrenia, paternal kinship psychopathology with mood disorders, maternal kinship psychopathology and core family psychopathology. CONCLUSION: Family patterns were critical to exerting variation in psychiatric disorders of probands and affected relatives. Probands with a core family pattern of psychopathology exhibited the most colorful clinical presentations in terms of variation in psychopathology. We observed a specificity of intergenerational transmission of psychiatric disorders when family patterns of psychopathology were taken into consideration, even second-degree relatives of psychiatric probands.


Asunto(s)
Susceptibilidad a Enfermedades , Familia , Trastornos Mentales/genética , Linaje , Adolescente , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Turquía , Adulto Joven
13.
Acta Neuropsychiatr ; 27(3): 153-8, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25597474

RESUMEN

OBJECTIVE: Oxidative stress has been shown to play an important role in the pathogenesis of post-traumatic stress disorder (PTSD). Although there are some studies on oxidative stress and PTSD, there is no report available on the serum total oxidant and antioxidant status in earthquake survivors with PTSD. Therefore, this study aimed to investigate the serum total oxidant and antioxidant status in earthquake survivors with chronic PTSD. MATERIAL AND METHODS: The study group included 45 earthquake survivors with PTSD and 40 earthquake survivors without PTSD. The oxidative status was determined using the total antioxidant status and total oxidant status (TOS) measurements and by calculating the oxidative stress index (OSI). RESULTS: There were no statistically significant differences in the total antioxidant status, TOS, or OSI when comparing individuals with and without PTSD (all, p>0.05). There were no correlations between Clinician-Administered PTSD Scale scores and oxidant and antioxidant stress markers (all, p>0.05). CONCLUSIONS: Our results suggest that the total oxidant and antioxidant status may not affect earthquake survivors with PTSD. This is the first study to evaluate the oxidative status in earthquake survivors with PTSD. Further studies are necessary to confirm these findings.


Asunto(s)
Antioxidantes/metabolismo , Desastres , Terremotos , Oxidantes/sangre , Trastornos por Estrés Postraumático/sangre , Trastornos por Estrés Postraumático/psicología , Adulto , Femenino , Humanos , Masculino , Estrés Oxidativo/fisiología , Espectrofotometría/métodos , Trastornos por Estrés Postraumático/etiología , Encuestas y Cuestionarios , Sobrevivientes/psicología , Turquía
14.
J Neuropsychiatry Clin Neurosci ; 26(1): 97-100, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-24515682

RESUMEN

Epilepsy is a brain disorder characterized by recurrent and unpredictable seizures. It is associated with an increased risk of developing mental disorders. Electroencephalography (EEG) is the most important diagnostic tool for this disease; however, a normal EEG cannot exclude the diagnosis of epileptic seizures, so EEG performed under sleep deprivation was performed in two case examples treated in the psychiatry clinic, in order to prove that sleep deprivation may increase epileptiform discharges.


Asunto(s)
Ondas Encefálicas/fisiología , Electroencefalografía/métodos , Privación de Sueño/fisiopatología , Adolescente , Epilepsia/diagnóstico , Femenino , Humanos , Masculino , Privación de Sueño/diagnóstico , Adulto Joven
15.
Front Psychol ; 15: 1349835, 2024.
Artículo en Inglés | MEDLINE | ID: mdl-38510305

RESUMEN

Background: This study synthesizes research on the impact of Quizlet on learners' vocabulary learning achievement, retention, and attitude. Quizlet's implementation in language education is posited to enhance the learning experience by facilitating the efficient and engaging assimilation of new linguistic concepts. The study aims to determine the extent to which Quizlet influences vocabulary learning achievement, retention, and attitude. Methods: Employing a meta-analysis approach, this study investigates the primary research question: "Does Quizlet affect students' vocabulary learning achievement, learning retention, and attitude?" Data were collected from various databases, identifying 94 studies, of which 23 met the inclusion criteria. The coding reliability was established at 98%, indicating a high degree of agreement among experts. A combination of random and fixed effects models was used to analyze the effect size of Quizlet on each outcome variable. Results: Quizlet was found to have a statistically significant impact on learners' vocabulary learning achievement, retention, and attitude. Specifically, it showed moderate effects on vocabulary learning achievement (g = 0.62) and retention (g = 0.74), and a small effect on student attitude (g = 0.37). The adoption of the fixed effects model for attitude was due to homogeneous distribution, while the random effects model was used for achievement and retention because of heterogeneous distribution. Conclusion: Quizlet enhances vocabulary learning achievement, retention, and has small positive effect on learner attitude. Its integration into language education curricula is recommended to leverage these benefits. Further research is encouraged to explore the optimization of Quizlet and similar platforms for educational success.

16.
Am J Emerg Med ; 31(3): 524-8, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-23380091

RESUMEN

INTRODUCTION: The aim of this study was to evaluate the role of S100B protein and neuron-specific enolase (NSE) in children with carbon monoxide (CO) poisoning. METHODS: In this prospective, case-controlled study, children with CO poisoning were recruited. Patient demographics features and Glasgow Coma Scale (GCS) were recorded. Blood samples were collected from all children with CO poisoning at their admission to the hospital and at 3 and 6 hours after admission. Levels of NSE and S100B were measured. The control group consisted of age-matched healthy children. RESULTS: A total of 30 children with CO poisoning (mean age, 7.88 ± 3.75 years; 17 boys) and 30 healthy children (mean age, 8.16 ± 3.05 years; 7 boys) were enrolled in the study. Mean carboxyhemoglobin level (%) measured at admission was 30.05 ± 8.00. Serum NSE levels of the children with CO poisoning were significantly higher than those of children from the control group at 0 hour and also at 3 and 6 hours (P < .001, P = .001, and P = .005, respectively). Serum S100B protein levels were similar between the 2 groups at 0 and 3 and 6 hours (P > .05). Serum NSE levels of patients with CO poisoning demonstrated a negative correlation with the admission GCS scores. No correlation was found between GCS scores and S100B protein levels. CONCLUSION: We have shown that NSE levels increase in CO-associated hypoxic brain damage in accordance with clinical findings. We have also found that, contrary to the studies conducted on adults, S100B protein levels do not increase in response to hypoxic brain damage.


Asunto(s)
Intoxicación por Monóxido de Carbono/sangre , Factores de Crecimiento Nervioso/sangre , Fosfopiruvato Hidratasa/sangre , Proteínas S100/sangre , Adolescente , Biomarcadores/sangre , Intoxicación por Monóxido de Carbono/diagnóstico , Carboxihemoglobina/metabolismo , Estudios de Casos y Controles , Niño , Preescolar , Femenino , Escala de Coma de Glasgow , Humanos , Lactante , Masculino , Estudios Prospectivos , Subunidad beta de la Proteína de Unión al Calcio S100
17.
Pediatr Cardiol ; 34(3): 553-9, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22965765

RESUMEN

Patients with asthma develop pulmonary hypertension due to recurrent hypoxia and chronic inflammation, leading to right heart enlargement with ventricular hypertrophy. Patients with severe asthma can experience cor pulmonale later in life, but little is known about ventricular function during the early stages of the disease. This study aimed to investigate ventricular functions in asymptomatic children with asthma as detected by conventional echocardiography and tissue Doppler echocardiography (TDE). Fifty-one pediatric patients (mean age 10.4 ± 2.2 years) with asthma and 46 age- and sex-matched healthy children (mean age 10.9 ± 2.4 years) were studied. All subjects were examined by conventional echocardiography and TDE, and they had pulmonary function tests on spirometry. The right-ventricular (RV) wall was statistically (p = 0.01) thicker among asthmatic patients (4.7 ± 1.5 mm) compared with healthy children (3.6 ± 0.4 mm). However, conventional pulsed-Doppler indices of both ventricles did not differ significantly between asthmatic patients and healthy children (p > 0.05). The results of TDE examining RV diastolic function showed that annular peak velocity during early diastole (E'), annular peak velocity during late diastole (A') (16.4 ± 1.8 and 5.1 ± 1.4 cm/s, respectively), E'/A' ratio (3.2 ± 0.7), isovolumetric relaxation time (67.7 ± 10.2 ms) and myocardial performance index (48.1 % ± 7.0 %) of the lateral tricuspid annulus among asthmatic patients differed significantly (p = 0.01) from those of healthy children (13.2 ± 2.3, 8.2 ± 2.0 cm/s, 1.6 ± 0.5, 46.2 ± 8.7 ms, and 42.0 % ± 5.7 %, respectively). Only peak expiratory flow (PEF) rate from the pulmonary function tests was negatively correlated with the E'/A' ratio of the tricuspid annulus (r = -0.38, p = 0.01). This study showed that although the findings of clinical and conventional echocardiography were apparently normal in children with asthma, TDE showed subclinical dysfunction of the right ventricle, which is negatively correlated with PEF. These findings signify the diagnostic value of TDE in the early detection and monitoring of such deleterious effects among asthmatic patients.


Asunto(s)
Asma/diagnóstico , Ecocardiografía Doppler de Pulso/métodos , Hipertrofia Ventricular Derecha/diagnóstico por imagen , Disfunción Ventricular Derecha/diagnóstico por imagen , Asma/complicaciones , Estudios de Casos y Controles , Niño , Ecocardiografía Doppler/métodos , Femenino , Humanos , Hipertrofia Ventricular Derecha/fisiopatología , Masculino , Monitoreo Fisiológico/métodos , Ápice del Flujo Espiratorio , Pronóstico , Valores de Referencia , Pruebas de Función Respiratoria , Índice de Severidad de la Enfermedad , Disfunción Ventricular Derecha/fisiopatología , Función Ventricular Derecha/fisiología
18.
Phytother Res ; 27(3): 330-7, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22585450

RESUMEN

Vascular dysfunction plays a key role in the pathogenesis of diabetic vascular disease. In this study, we aimed to investigate whether chronic in vivo treatment of Crataegus microphylla (CM) extract in diabetic rats induced with streptozotocin (STZ, intraperitoneal, 65 mg/kg) preserves vascular function and to evaluate whether the reduction of inducible nitric oxide synthase (iNOS), proinflammatory cytokines, and lipid peroxidation mediates its mechanisms of action. Starting at 4 weeks of diabetes, CM extract (100 mg/kg) was administrated to diabetic rats for 4 weeks. In aortic rings, relaxation to acetylcholine and vasoreactivity to noradrenaline were impaired, whereas aortic iNOS expression and plasma tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6), total nitrite-nitrate, and malondialdehite levels were increased in diabetic rats compared with controls. Chronic CM treatment significantly corrected all the above abnormalities in diabetic rats. In comparison, pretreatment of the aorta of diabetic rats with N-[3(aminomethyl) benzyl]-acetamidine, dihydrochloride (10(-5) M), a selective inhibitor of iNOS, produced a similar recovery in vascular reactivity. These results suggest that chronic in vivo treatment of CM preserves endothelium-dependent relaxation and vascular contraction in STZ-induced diabetes, possibly by reducing iNOS expression in the aorta and by decreasing plasma levels of TNF-α and IL-6 and by preventing lipid peroxidation.


Asunto(s)
Diabetes Mellitus Experimental/fisiopatología , Endotelio Vascular/efectos de los fármacos , Extractos Vegetales/farmacología , Vasodilatadores/farmacología , Animales , Aorta/efectos de los fármacos , Crataegus , Diabetes Mellitus Experimental/sangre , Diabetes Mellitus Experimental/tratamiento farmacológico , Interleucina-6/sangre , Peroxidación de Lípido/efectos de los fármacos , Masculino , Malondialdehído/sangre , Nitratos/sangre , Óxido Nítrico Sintasa de Tipo II/metabolismo , Nitritos/sangre , Ratas , Factor de Necrosis Tumoral alfa/sangre , Vasodilatación/efectos de los fármacos
19.
Ir J Med Sci ; 192(2): 929-934, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35697967

RESUMEN

BACKGROUND: As the number of end-stage renal disease (ESRD) patients is increasing, but there are not enough living donors, it is necessary to broaden the criteria for candidates who can undergo donor nephrectomy. Thanks to surgeons' increasing experience with laparoscopic donor nephrectomy (LND), multiple renal artery grafts, previously considered a relative contraindication to donor nephrectomy, have become candidates for LDN. We aimed to compare the outcomes of donors and recipients with single artery and with multiple arteries in LDN. METHODS: A total of 214 patients were included in the study. Patients were divided into two groups according to the number of donor arteries: donors with one artery (group 1) and donors with multiple arteries (group 2). The number of donor arteries, operative time, warm ischemia time (WIT), cold ischemia time (CIT), arterial anastomosis time, venous anastomosis time, the extent of bleeding, and preoperative complications were recorded to evaluate the preoperative data. RESULTS: The mean operation time in group 1 was 90.3 ± 11.8 min, while in group 2, it was 102.1 ± 5.5 min (p = 0.000). WIT group 1 was 90.9 ± 4.3 s and group 2 100.6 ± 2.1 s (p = 0.000). Arterial anastomosis time was 12.25 ± 3.8 in group 1 and 22.5 ± 4.5 in group 2 (p = 0.000). No statistically significant difference was found between the two groups in other parameters. CONLUSION: Increasing the number of donor arteries in renal transplantation (RT) operations prolonged the operation time on both the donor and recipient sides. Still, it had no negative impact on complications or graft function in the postoperative period.


Asunto(s)
Trasplante de Riñón , Laparoscopía , Humanos , Nefrectomía/efectos adversos , Resultado del Tratamiento , Estudios Retrospectivos , Riñón , Arteria Renal/cirugía , Donadores Vivos
20.
Neuropsychobiology ; 66(4): 244-51, 2012.
Artículo en Inglés | MEDLINE | ID: mdl-23095458

RESUMEN

OBJECTIVE: There is mounting evidence indicating that oxidative and inflammatory processes may have an important role in the pathogenesis of panic disorder (PD). PD is a heterogeneous disease, and panic attacks are divided according to the different symptom clusters as respiratory, nocturnal, non-fearful, cognitive, or vestibular subtypes. The aim of this study was to compare whole-blood and serum superoxide dismutase (SOD), glutathione peroxidase and adenosine deaminase activities in PD patients with/without nocturnal, respiratory subtypes and healthy subjects. METHODS: The study was conducted including 60 patients with PD and 30 healthy control subjects. The Panic Attack Symptom Checklist, Panic and Agoraphobia Scale, Hamilton Depression Rating Scale and Hamilton Anxiety Rating Scale were administered to the patients. Biochemical analyses were performed after all the blood samples were collected. RESULTS: We found that whole-blood SOD and glutathione peroxidase activities of patients were significantly lower and adenosine deaminase activities of patients were higher than those of healthy controls. There were no statistically significant differences between respiratory and nocturnal subtypes. In addition, there were no marked relationships between the duration of illness and panic-agoraphobia scores of patients with nocturnal subtypes. Hamilton Depression Rating Scale and Hamilton Anxiety Rating Scale scores of patients with the nocturnal subtype were markedly higher than those of patients without the nocturnal subtype. CONCLUSION: The results suggest that oxidative and inflammatory processes may play a role in the pathophysiology of PD. These findings may support the idea that both nocturnal and respiratory subtypes of PD have different symptom clusters of the same disease.


Asunto(s)
Adenosina Desaminasa/metabolismo , Glutatión Peroxidasa/metabolismo , Trastorno de Pánico/sangre , Trastorno de Pánico/diagnóstico , Superóxido Dismutasa/metabolismo , Adolescente , Adulto , Anciano , Trastornos de Ansiedad/sangre , Trastornos de Ansiedad/complicaciones , Trastornos de Ansiedad/diagnóstico , Estudios de Casos y Controles , Trastorno Depresivo/sangre , Trastorno Depresivo/complicaciones , Trastorno Depresivo/diagnóstico , Femenino , Humanos , Masculino , Persona de Mediana Edad , Trastorno de Pánico/complicaciones , Escalas de Valoración Psiquiátrica/estadística & datos numéricos
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