Plasmonic performance of AuAgCu alloys from many-body perturbation theory.

We present a detailed appraisal of the optical and plasmonic properties of ordered alloys of the form AuAgCu, as predicted by means of first-principles many-body perturbation theory augmented by a semi-empirical Drude-Lorentz model. In benchmark simulations on elemental Au, Ag, and Cu, we find that the random-phase approximation (RPA) fails to accurately describe inter-band transitions when it is built upon semi-local approximate Kohn-Sham density-functional theory band-structures. We show that non-local electronic exchange-correlation interactions sufficient to correct this, particularly for the fully-filled, relatively narrow d-bands which contribute strongly throughout the low-energy spectral range (0-6 eV), may be modeled very expediently using band-stretching operators that imitate the effect of a perturbative [Formula: see text] self-energy correction incorporating quasiparticle (QP) mass renormalization.

Effect on long-term survival of psychiatric disorder, inflammation, malnutrition, and radiotherapy-related toxicity in patients with locally advanced head and neck cancer.

Purpose: To evaluate the effects on the long-term survival of psychiatric disorders, inflammation, malnutrition, and radiotherapy (RT)-related toxicity in patients with locally advanced head and neck cancer.

Methods: Included were 47 patients who received RT for non-metastatic locally advanced head and neck cancer. The diagnosis of psychiatric disorder was made by the Diagnostic and Statistical Manual of Mental disorders (4th edn) (DSM-IV) criteria.

The association between depression, weight loss and leptin/ghrelin levels in male patients with head and neck cancer undergoing radiotherapy.

Objective: This study investigated the relationship between weight loss, depression and anxiety, and appetite hormones, leptin and ghrelin levels in patients with head and neck cancer (HNC), as well as the effect of radiotherapy and antidepressant treatment on weight and these hormones.

Methods: Forty male patients with HNC and twenty physically and mentally healthy male controls were recruited for the study. Psychiatric status was evaluated with clinical interview and psychometric tests.

Prognostic value of SPARC expression in unresectable NSCLC treated with concurrent chemoradiotherapy.

Background: The aim of the present study was to determine the predictive/prognostic value of the secreted protein, acidic and rich in cysteine (SPARC) in cases of unresectable, locally advanced, non-small cell lung cancer.

Materials And Methods: The study included 84 patients with Stage IIIA-B non-small cell lung cancer, undergoing simultaneous chemoradiotherapy including radiotherapy at a dose of 66 Gy and weekly docataxel (20 mg/m2) and cisplatin (20 mg/m2). SPARC expression was studied in biopsy material by immunohistochemical methods and correlations with treatment responses or survival were evaluated.

Concomitant chemoradiotherapy with docetaxel and cisplatin followed by consolidation chemotherapy in locally advanced unresectable non-small cell lung cancer.

Objectives: To evaluate treatment results and toxicities in patients who received concomitant chemoradiotherapy (CRT) followed by consolidation with docetaxel and cisplatin in locally advanced unresectable non-small cell lung cancer (NSCLC).

Methods: Ninety three patients were included in this retrospective study. The patients received 66 Gy radiotherapy and weekly 20 mg/m(2) docetaxel and 20 mg/m(2) cisplatin chemotherapy concomitantly.

Contribution of involved-field radiotherapy to survival in patients with relapsed or refractory Hodgkin lymphoma undergoing autologous stem cell transplantation.

Objectives: To assess the outcomes of overall survival and posttransplantation survival in patients with Hodgkin lymphoma (HL) undergoing autologous stem cell transplantation (ASCT) because of the development of relapse or resistance after chemotherapy (CT) or CT plus radiotherapy (combined modality treatment, CMT).

Methods: Forty-five patients undergoing ASCT because of the development of relapse or resistance after CT or CMT for HL were enrolled in the study. Radiotherapy was given as involved-field radiotherapy.

Comparison of total body irradiation plus cyclophosphamide with busulfan plus cyclophosphamide as conditioning regimens in patients with acute lymphoblastic leukemia undergoing allogeneic hematopoietic stem cell transplant.

Conditioning regimens used during stem cell transplant provide prolonged control or cure of the disease in patients with acute lymphoblastic leukemia (ALL). In this study, we present a comparison of treatment results for 95 patients with ALL who underwent allogeneic hematopoietic stem cell transplant (AHSCT) with total body irradiation plus cyclophosphamide (TBI + Cy) or busulfan plus cyclophosphamide (Bu + Cy) as conditioning regimen. Median age was 25 (range: 9-54) years.

Prealbumin is a more sensitive marker than albumin to assess the nutritional status in patients undergoing radiotherapy for head and neck cancer.

Aim Of The Study: The aim of this prospective study was to determine the prevalence of malnutrition and to evaluate a more sensitive marker to assess the nutritional status in patients undergoing RT for head and neck cancer.

Material And Methods: The prospective study included 51 (mean age of 57.6 ±11.

Effect of serum selenium levels on radiotherapy-related toxicity in patients undergoing radiotherapy for head and neck cancer.

Aim: To investigate whether there is a difference in selenium levels before and after radiotherapy (RT) and to study the effects of serum selenium levels on RT-related toxicity in patients undergoing RT for head and neck cancer.

Patients And Methods: A population of 47 consecutive patients was enrolled in the study. RT was given by conventional fractionation.

Whole abdominal field versus standard field radiotherapy plus concomitant and adjuvant chemotherapy for patients with locally advanced gastric cancer.

Purpose: To compare standard radiotherapy field (SRTF) with whole abdomen irradiation (WAI), used in conjunction with adjuvant chemotherapy following curative surgery in patients with gastric cancer.

Methods And Material: Ninety patients were included in the study and divided into two treatment arms. In the first treatment arm, SRTF, including 45 Gy radiation to the primary tumor and regional lymph nodes, was performed in 45 patients.

Prognostic significance of CD9 expression in locally advanced gastric cancer treated with surgery and adjuvant chemoradiotherapy.

The tetraspanin transmembrane protein CD9 plays an important role in inhibiting cell motility in numerous neoplastic cell lines, including lung, gastric, pancreatic, and bladder carcinomas. The prognostic importance of CD9 in the survival of gastric carcinoma patients has not been examined to date, and in the present study, we attempted to define its prognostic value. The study included 49 (35 men and 14 women) patients with locally advanced (stages II-IV) gastric cancer.

Concomitant chemoradiotherapy with cisplatin and docetaxel followed by surgery and consolidation chemotherapy in patients with unresectable locally advanced non-small cell lung cancer.

Aims: To evaluate preoperative concomitant chemoradiation using cisplatin plus docetaxel followed by consolidation chemotherapy in patients with unresectable locally advanced non-small cell lung cancer (NSCLC).

Patients And Methods: Medical records of patients with locally advanced unresectable NSCLC (stage IIIA and IIIB) treated with concomitant chemoradiotherapy using cisplatin + docetaxel combination followed by consolidation chemotherapy were retrospectively evaluated. All the patients were consecutively treated.

The effect of grape seed extract on radiation-induced oxidative stress in the rat liver.

Background/aims: The tolerance of the liver is considerably low when an effective radiation (RTx) dose needs to be delivered in patients in whom either their liver or whole body area has to be irradiated. The aim of this study was to evaluate the possible protective effect of grape seed extract on liver toxicity induced by RTx in the rat liver.

Methods: We used four groups, each consisting of 12 healthy male Wistar rats.

Clinical and prognostic features of plasmacytomas: a multicenter study of Turkish Oncology Group-Sarcoma Working Party.

To identify the outcomes of prognostic factors of solitary plasmacytoma mainly treated with local radiotherapy (RT). The data were collected from 80 patients with solitary plasmacytoma (SP). Forty patients (50.