30 research outputs found

    The Surgical Management of Traumatic C6-C7 Spondyloptosis

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    Attachment and Psychopathology

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    The type of attachment defined in the early stages of life and thought to be continuous, is a phenomenon that shapes the pattern of how a person makes contact with others. The clinical appearance of every type of attachment is different and each one has prospective and retrospective phenomenological reflections. In all stages of life and in close relationships, it can be observed if a person gets in close contact with someone else and if this relation bears supportive and protective qualities. According to attachment theorists, once it is defined as safe or unsafe during nursing period, it shows little change. Starting from Bowlby’s work, unsafe attachment type is considered as the determining factor of psychopathology in the later periods of life, while safe attachment is considered as in relation with healthy processes. The nature’s original model is safe attachment. Anxious/indecisive attachment, an unsafe attachment type, is associated with anxiety disorders and depressive disorder, while avoidant attachment is associated with behavior disorder and other extroverted pathologies. Disorganized/disoriented attachment is considered to be together with dissociative disorder. The aim of this paper is to review attachment theory and the relation between attachment and psychopathology

    Magnetic cobalt particle-assisted solid phase extraction of tellurium prior to its determination by slotted quartz tube-flame atomic absorption spectrophotometry

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    WOS: 000466901800005PubMed: 31053958The emergence of magnetic materials has opened up doors to numerous applications including their use as sorbents for preconcentration of trace elements. Magnetic materials exhibit many unique advantages in sample preparation such as easy separation from the sample, high preconcentration factor, and short operation period. In the present study, magnetic cobalt material was synthesized, characterized, and used as an effective sorbent in a solid phase extraction process. Experimental variables of the extraction process including pH and volume of buffer solution, eluent concentration and volume, mixing type and period, and sorbent amount were optimized to achieve maximum extraction efficiency. Instrumental variables of flame atomic absorption spectrophotometry and the type of slotted quartz tube were also investigated. Under the optimum conditions, the combined method provided a wide linear range between 50 and 200ng/mL with detection and quantification limits of 15.4ng/mL and 51.3ng/mL, respectively. Relative standard deviations of the proposed method were less than 5.0% and a high enrichment factor of 86.7 was obtained. The proposed method was successfully applied to soil samples for the determination of trace tellurium

    Bernard-Von Burrow Flap and Unilateral Webster Modification for Reconstruction of Upper Lip

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    WOS: 000396416600006Since it is less influenced by ultraviolet rays, upper lip carcinomas are less common than those of the lower lip. Likewise, upper lip reconstruction methods and the number of patients that the methods applied are very limited. Several methods defined in the reconstruction of entire upper lip defects, so far. Reconstruction methods applied to the upper lip defects can be listed as follows: transoral rotation flap (Abbe and Estlander), circumoral advancement-rotation flap (Karapandzic and Gillies), perialar crescentic excision, reverse Yus flap, Bernard-von Burrow flap, and Bernard-von Burrow flap with double-sided Webster modification. In this article, a 58-year-old male patient who underwent tumor excision due to upper lip carcinoma by the Bernard-von Burrow flap and unilateral Webster modification method, previously very rarely emphasized in the literature is presented

    Variables affecting the occurrence of gastroesophageal reflux in obstructive sleep apnea patients

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    A number of recent studies have suggested that apnea and/or hypopnea episodes may be in a causal relationship with nocturnal gastroesophageal reflux (GER) episodes in obstructive sleep apnea (OSA) patients. In this study, we addressed the possible factors that may affect the occurrence of reflux events in OSA patients. For this reason, we investigated respiratory and sleep parameters in OSA patients with or without nocturnal GER episodes. Nineteen patients who were referred to the sleep laboratory for suspected sleep apnea were included in the study. All subjects underwent polysomnographic evaluation simultaneously with distal and proximal esophageal pH monitoring. During the recording period, a total of 134 reflux events, 134 from distal probes and none from proximal probes, were recorded. We divided patients into two groups: (1) nocturnal GER-positive patients (n=8; age: 41.9+/-11.9) and (2) nocturnal GER-negative patients (n=11; age: 45.4+/-3.3). We compared demographic, respiratory and sleep parameters between the two groups. Then we analysed the time relation between GER episodes and obstructive respiratory events. The two groups were matched by age and body mass index. Sleep and respiratory parameters were not different between the two groups. In conclusion, we suggested that age, body mass index and the severity of disease in obstructive sleep apnea patients are not effective determinants of gastroesophageal reflux. There is no sufficient evidence to accept arousals and obstructive apneas as primary causes of gastroesophageal reflux and vice versa. And finally, sleep macroorganisation has no impact on the occurrence of GER in OSAS

    Accurate and Sensitive Determination Method for Procymidone and Chlorflurenol in Municipal Wastewater, Medical Wastewater and Irrigation Canal Water by GC-MS After Vortex Assisted Switchable Solvent Liquid Phase Microextraction

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    WOS: 000469475500018PubMed: 30989280In this study, the detection power of a gas chromatography mass spectrometer (GC-MS) for procymidone and chlorflurenol was significantly enhanced using switchable solvent liquid phase microextraction (SS-LPME) as a preconcentration tool. This was achieved by a comprehensive optimization of significant parameters to the SS-LPME method such as switchable solvent amount, concentration and amount of sodium hydroxide, pH effect and mixing effect. The optimum experimental conditions obtained were used to determine analytical figures of merit for the analytes. The limits of detection obtained were 0.44 and 2.9ng/mL for procymidone and chlorflurenol, respectively. The optimum method was applied to water sampled from an irrigation canal and two wastewater samples. The samples were spiked at two concentrations and the percent recovery results obtained ranged between 86 and 115% for both analytes. The recovery results together with the low standard deviations recorded validated the method as accurate and precise

    Prognostic implication of serum vascular endothelial growth factor in advanced hepatocellular carcinoma staging

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    Background. Staging systems have considerable impact on hepatocellular carcinoma (HCC) treatment approaches and outcomes. There is an unmet need to improve their stratification ability. We have evaluated four commonly used staging systems and assessed whether angiogenic biomarker vascular endothelial growth factor (VEGF) could improve their prognostic stratification.Material and methods. Four staging systems; Okuda, Cancer of the Liver Italian Program (CLIP), Barcelona Clinic Liver Cancer (BCLC), and Child-Pugh were evaluated in 78 HCC patients; their stratification abilities were detected by Kaplan-Meier curves and log-rank test; their accuracies of predicting survival were compared with the concordance index. Serum VEGF levels were measured using ELISA method. Recursive partitioning was used to determine the optimal VEGF cutoff. The prognostic significance of VEGF cutoff and other parameters were analyzed using univariate and multivariate models.Results. None of the staging systems demonstrated better discriminatory ability in predicting survival. The four staging systems did not reveal significant differences in probability of survival across their intermediate-advanced stages. Optimal cutoff identified for VEGF was 445 pg/mL. In advanced HCC, VEGF level (p = 0.004) and in early HCC, bilirubin level (p = 0.009) were identified as the independent prognostic factors. Survival comparison with high and low VEGF levels was significant for advanced HCC, while insignificant for early disease.Conclusion. Staging systems with conventional parameters did not provide good prognostic stratification for survival in advanced HCC population. Serum VEGF level was an independent predictor of survival in advanced HCC, and provided more survival homogeneity within the advanced stages of conventional staging systems

    Oral carbohydrate solution ameliorates endotoxemia-induced splanchnic ischemia

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    WOS: 000243462900048PubMed: 17160475The purpose of this study was to investigate the effect of oral administration of a simple carbohydrate solution on splanchnic circulation and bacterial translocation in endotoxemia. Group 1 was sham control; group 2 was starved for 24 hours; in group 3, endotoxin was administrated at the end of starvation; in group 4, carbohydrate solution was administrated via orogastric route for 24 hours; and in group 5, carbohydrate solution was given and endotoxin was administrated at the end of 24 hours. Splanchnic blood flows were recorded and tissue samples were collected for microbiological analyses. There was a significant increase (P <.05) in the incidence of bacterial translocation in starvation. Endotoxemia decreased distal (P=.021) and midmesenteric (P=.046) flow in starved animals. Oral carbohydrate significantly increased ileal blood flow in starvation (P=.036) and endotoxemia (P=.008). In conclusion, oral carbohydrate solution prevents bacterial translocation during starvation and endotoxemia. The possible mechanism is the improvement in the mesenteric blood flow

    Mild Hypothermia Improves Survival During Hemorrhagic Shock Without Affecting Bacterial Translocation

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    WOS: 000263091700005PubMed: 19191154Background: Accidental hypothermia in patients with hemorrhagic shock (HS) is associated with increased mortality. However, experimental mild and moderate hypothermia has beneficial effects. The mechanisms for beneficial effects of hypothermia have not been completely understood. Therefore, the aim of this study was to investigate the effect of hypothermia on survival, bacterial translocation (BT), and remote pulmonary injury in a controlled HS model in rats. Methods: HS was achieved by blood withdrawal through femoral vein. Rats in the normothermia group (group I) were maintained at 37C. Mild hypothermia group (group II) was observed at 32C that was spontaneously induced by exposure to ambient temperature. Moderate hypothermia of 28C was actively induced by external cooling in group III for 90 min. Survival and neurological deficit scores (NDS) were recorded at 24th hr. Mesenteric lymph nodes, liver and spleen samples were collected. Myeloperoxidase (MPO) and malondialdehyde (MDA) levels were measured in lung tissue. Results: Blood pressure significantly increased in hypothermia groups. Mild hypothermia significantly increased survival. No difference was found in BT rates in groups. Hypothermia was found to significantly decrease the NDS points in group III, compared to group I. There was no difference in lung tissue MPO levels among groups. Lung tissue MDA levels increased significantly in groups II and III. Conclusions: Mild hypothermia improved blood pressure, survival, and neurological outcome with a possible detrimental effect on pulmonary ROS production during HS in rats. These effects of hypothermia are not associated with BT
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