Voprosy onkologii (Vopr Onkol)

Journal description

Current impact factor: 0.00

Impact Factor Rankings

Additional details

5-year impact 0.00
Cited half-life 0.00
Immediacy index 0.00
Eigenfactor 0.00
Article influence 0.00
Other titles Voprosy onkologij
ISSN 0507-3758
OCLC 5692988
Material type Periodical
Document type Journal / Magazine / Newspaper

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: М.V. Fridman, S.V. Mankovskaya, O.V. Krasko, Yu.E. Demidchik Clinical and morphological features of papillary thyroid cancer in children and adolescents in the Republic of Belarus: analysis of 936 post Chernobyl carcinomas There is presented clinical and morphological characteristics of post-Chernobyl papillary thyroid cancer in 936 children and adolescents. In general, carcinoma of these patients featured by locally advanced growth - 57.4% (387 of 674 patients with this sign could be assessed), metastases in regional lymph nodes - 73,7% (N1b in 40.7 %) and internal organs - 11.1%. The mean duration of follow-up was 12,4 ± 3,5 years (range 4.3 to 19.6 years) including children 14,6 ± 2,7 years (range 8.8 to 19.6 years) and adolescents - 10,1 ± 3,1 years (range 4.3 to 18.8 years). Overall survival for the 20-year period was 96,6% ± 1,2%. The causes of death were suicide (7), injuries and accidents (5), secondary malignancies (1), somatic diseases (2). Only in two patients the death was related to the main disease - lung metastases. Free-recurrence survival for the cohort of post-Chernobyl carcinomas was 92,7% ± 1,0%. Key words: papillary cancer, thyroid gland, children and adolescents, Chernobyl disaster
    Voprosy onkologii 01/2014; 60(2):43-46.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The short-term treatment results of 91 patients with locally advanced rectal cancer are presented. All patients received surgical treatment and neoadjuvant chemotherapy. The chemoradiotherapy effect was evaluated by comparison of pre- and post-therapeutic MRI data. MRI data was also compared with post-operation tumor morphology data. In 23% of resected tumor samples complete tumor regression was evident, in 47.2% of cases partial regression was revealed. Lymph node metastases were found in 21.9% of cases. The discrepancy in MRI and morphology data can be explained by the limited ability of MRI in differentiation between viable tumor, fibronecrotic tissue and inflammatory reaction after chemoradiotherapy.
    Voprosy onkologii 01/2012; 58(2):203-6.
  • [Show abstract] [Hide abstract]
    ABSTRACT: In experiment conducted on male mice of C57B1/6 line quercetin (80-100 mg/kg injected 60 minutes before carboplatin) or an emergency radioprotector indralin B-190 (50-100 mg/kg injected 5 minutes after carboplatin) decreased the mortality of animals from toxic carboplatin dose of 100 mg/kg from 40% to 10-11% (p < 0.05). In mice receiving both quercetin and B-190 the reduction of carboplatin toxicity evaluated by blood WBC level was even more prominent (p < 0.05). The results were confirmed in rat experiment. In animals receiving both quercetin and B-190 with 50 mg/kg of carboplatin the WBC level was higher (p < 0.05). Quercetin alone had no effect on hematologic toxicity in those settings. Besides, quercetin and B-190 didn't have any effect on RBC level changes.
    Voprosy onkologii 01/2012; 58(1):77-80.
  • [Show abstract] [Hide abstract]
    ABSTRACT: SHR mice with intracranial transplanted lymphosarcoma LIO-1 received a single intraperitoneal gemcitabine injection in maximal tolerated dose of 25 mg/kg or single maximal tolerated oral dose of lomustine, 50 mg/kg. Compared to control group gemcitabine injection increased the mice lifespan 1.4-fold (p < 0,01) and oral lomustine 1.6-fold (p < 0,01). The median lifespan of the mice receiving both gemcitabine and lomustine in maximal dose underwent a significant 3.3-fold increase (p < 0,01) compared to controls (2.4-fold compared to gemcitabine and 2.1-fold compared to lomustine group). Combined therapy didn't cause an increase of toxicity.
    Voprosy onkologii 01/2012; 58(3):394-7.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The treatment results of 396 patients with morphologically verified grade 3-4 malignant brain tumors receiving conventional irradiation regimen and irradiation by medium-sized fractions were analyzed to form institutional guidelines.The standard mode of fractionation with a single dose of 2 Gy and total focal dose (TFD) of 60 Gy is appropriate for patients with initial Karnofsky status of 60-100% and Recursive Partition Analysis (RPA) class I-III. TFD increase to 60-62 Gy in grade 4 gliomas and 54-56 Gy in grade 3 gliomas grants a significant improve in overall survival. An increase of a single irradiation fraction to 3 Gy may be used for patients with initially low functional status (Karnofsky 30-50%) and RPA classes IV-VI. In these cases it is advisable to use the TFD of 45 Gy or more (TFD of equivalent regimen with a dose greater than 54 Gy). The mentioned fractionation regimens could be recommended for the use in clinical practice to improve the results of high-grade gliomas treatment.
    Voprosy onkologii 01/2012; 58(3):369-73.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The efficiency of laparoscopic para-aortic lymphadenectomy and radiodiagnostic methods in pre-treatment clarification of tumor lesion extent in stage IB2-III cervical cancer patients was compared. The Magnetic Resonance or sonographic imaging data was found to be inferior to lymph nodes morphological investigation followed by morphological study of distant lymph nodes. The results demonstrate the adequacy of surgical staging by laparoscopic para-aortic lymphadenectomy in patients with locally advanced cervical cancer for therapy tactics decision making.
    Voprosy onkologii 01/2012; 58(2):222-6.
  • [Show abstract] [Hide abstract]
    ABSTRACT: An analyzed cohort consists of 50 pediatric patients with osteosarcoma receiving combined therapy in N. N. Petrov Research Institute for Oncology (1999-2010). Thirty nine of them had localized disease, 11 patients had distant metastases. The treatment scheme included neoadjuvant therapy with cisplatin and doxorubicin, surgical treatment and adjuvant therapy depended on initial response and could include cisplatin, doxorubicin, high-dose methotrexate, ifosfamide, etoposide. Four-year overall and relapse-free survival in children with localized disease was 74.3% and 69.2% accordingly. In 62% of patients were performed organ-preserving surgical interventions, in 22 patients was performed endoprosthetics, in 4 patients the defect was replaced by a bone autograft on a vascular bundle. The effectiveness of initial treatment and secondary endoprosthetics were analyzed. Six patients with lung metastases received normotermic lung chemoperfusion, 4 of them are alive and disease-free for 8 to 24 months.
    Voprosy onkologii 01/2012; 58(2):275-81.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Mammographic breast density (MBD) value is currently one of the strong predictors for mammary carcinoma development. There are also other conditions predisposing to MBD increase with hormone-related markers different from those used in breast cancer, while pharmacological methods for MBD reduction are few and still considered experimental. In the current study 25 postmenopausal women received daily for a median 10.5 months 1-1.5 g of antidiabetic biguanide metformin (siofor) (n = 14) or 400-600 mg of antigenotoxic drug N-acetylcysteine (n = 11). In both groups MBD was measured before and after treatment. The effects of both drugs were quite similar. Metformin use lead to lower MBD in 4 of 14 (28.5%) women with mean MBD decrease of -1,24% (absolute dynamics) and -5.03% (relative value). In N-acetylcysteine group this effect was observed in 27.3% of cases, with -2.0% absolute dynamics and -6.1% relative dynamics. In metformin group the most evident absolute and relative dynamics was observed in patients with no signs of metabolic syndrome, -10.86% compared to -2.45%. In 7 women the metformin use also lead to decrease of dense and increase of non-dense areas on digital scans, leading to decrease in dense to non-dense area volume ratio. Therefore, the similar effects of metformin and N-acetylcysteine are probably explained mostly not by insulin resistance elimination by metformin, but by altered cell proliferation, apoptosis and DNA repair.
    Voprosy onkologii 01/2012; 58(1):45-9.
  • Voprosy onkologii 01/2012; 58(1):119-25.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Although there is data suggesting the in vitro inhibition of aromatase in cell lines by antidiabetic biguanide metformin (MF), there is no data on the intratumoral breast cancer (BC) aromatase expression in patients already receiving therapy for type II diabetes. Paraffinized tumor samples obtained from 57 BC pts aged 48-77 yrs, >80% of pts had stage T1-2N0-3M0 BC. Thirteen of the pts didn't have diabetes, 44 pts were previously diagnosed type II diabetes and reseaved the following therapy for at least 1 year: diet only (n=14), sulphonylurea (SU, n=14), metformin (MF, n=9) or MF with SU (n=7). Tumor samples were deparaffinized in xylene and treated with the monoclonal aromatase antibody 677. The rate and intensity of tissue staining was then analyzed by semi-quantitative method using conventional scores. Negative controls were processed with 0.01 M PBS instead of the specific antibody. For positive control paraffin-embedded human placenta samples were used. By conventional scores method the following values were obtained: 1.31 (pts without diabetes), 1.47 (all diabetic patients), 2.22 (MF), 1.50 (SU), 1.29 (MF+SU), 1.81 (MF and MF+SU), 1.07 (diet). Allred scores for progesterone receptor (PR) were the highest in the samples from pts treated with MF or MF+SU and the lowest in the samples obtained from SU-treated pts. Thus, in contrast to previous findings suggesting the suppressive effect of MF on aromatase in vitro, no such trend was discovered for aromatase expression in tumor samples from diabetic patients treated with MF. Although the investigated patients population is still small, this data combined with clinical data (higher PR levels) may suggest the better responses to hormonal therapy in MF-treated diabetic patients.
    Voprosy onkologii 01/2012; 58(2):194-8.
  • Voprosy onkologii 01/2012; 58(2):292-6.
  • [Show abstract] [Hide abstract]
    ABSTRACT: This is an analysis of the use of sonoelastography as part of complex instrumental diagnostic procedure (mammography, gray-scale and Doppler ultrasonography) for small breast tumors. A total of 126 patients with breast lesions below 20 mm in diameter were divided into two groups depending on lesion size. The first group consisted of women with 5-10 mm lesions (21 patients with carcinoma and 20 patients with benign tumors), the second group was characterized by 11-20 mm lesions (69 carcinoma patients and 16 patients with benign lesions). According to analysis results the diagnostic complex of gray-scale ultrasonography and sonoelastography is most sensitive, the sensitivity is higher in the second group (89.1% and 97.7% respectively). The complex ultrasonography procedure yielded better overall results than mammography in both patients' groups.
    Voprosy onkologii 01/2012; 58(3):359-62.
  • Voprosy onkologii 01/2012; 58(3):339-45.