Biomedical subjects

H Adigüzel

Publications and source records attributed to H Adigüzel.

4 recordsLinked to original sources

PubMed2006

Whole genome expression analysis for biologic rational pathway modeling: application in cancer prognosis and therapy prediction.

Using semi-quantitative microarray technology, almost every one of the approximately 30 000 human genes can be analyzed simultaneously with a low rate of false-positives, a high specificity, and a high quantification accuracy. This is supported by data from comparative studies of microarrays and reverse-transcription PCR for established cancer genes including those for epidermal growth factor receptor (EGFR), human epidermal growth factor receptor-2 (HER2/ERBB2), estrogen receptor (ESR1), progesterone receptor (PGR), urokinase-type plasminogen activator (PLAU), and plasminogen activator inhibitor-1 (SERPINE1). As such, semi-quantitative expression data provide an almost completely comprehensive background of biological knowledge that can be applied to cancer diagnostics. In clinical terms, expression profiling may be able to provide significant information regarding (i) the identification of high-risk patients requiring aggressive chemotherapy; (ii) the pathway control of therapy predictive parameters (e.g. ESR1 and HER2); (iii) the discovery of targets for biologically rational therapeutics (e.g. capecitabine and trastuzumab); (iv) additional support for decisions about switching therapy; (v) target discovery; and (vi) the prediction of the course of new therapies in clinical trials. In conclusion, whole genome expression analysis might be able to determine important genes related to cancer progression and adjuvant chemotherapy resistance, especially in the context of new approaches involving primary systemic chemotherapy. In this review, we will survey the current progress in whole genome expression analyses for cancer prognosis and prediction. Special emphasis is given to the approach of combining biostatistical analysis of expression data with knowledge of biochemical and genetic pathways.

Cluster Analysis↗

PubMed2003

Relationship of sexuality with psychological and hormonal features in the menopausal period.

Women may experience some mental and sexual problems between the ages of 40 years and 60 years due to serious changes in the hormonal system. The aim of this study was to examine the relationships between the changes in sex hormones, sexual behaviours, depression and anxiety levels of women who were in either the premenopausal, perimenopausal or postmenopausal period. The subjects of this cross-sectional study consisted of 324 women who attended the Gynaecology and Obstetrics Out-Patient Ward of Celal Bayar University Hospital. Of this group, 37.0% (n = 124) were postmenopausal, 27.2% (n = 84) perimenopausal and 35.8% (n = 116) premenopausal. Beck Depression Inventory (BDI), State and Trait Anxiety Inventories (STAI-I and II) and a questionnaire on sexual behaviour which was prepared for this study by the authors, were applied to all of the attendees and serum sex hormone levels were analyzed. Beck Depression Anxiety, STAI-I and STAI-II scores and sexual behaviours did not show any statistically significant difference among these three groups. The frequency of sexual intercourse was lower in women with high BDI scores. The rate of painful intercourse was higher in women with high STAI-I scores. The frequency of sexual intercourse, sexual desire and orgasm decreased and painful intercourse increased in women with high STAI-II scores. The frequency of sexual intercourse decreased significantly as the age or follicle stimulating hormone level of women increased. These findings have revealed that the menopausal state did not affect the sexual behaviour, and psychological state of women between the ages of 40 and 60 years, but the increase in anxiety and depression scores affected the sexual life in a negative manner.

Adult↗

PubMed2001

[Thromboembolic prophylaxis after major abdominal surgery].

PURPOSE: To investigate the efficacy of prophylaxis modalities after major abdominal surgery. PATIENTS AND METHODS: Patients who underwent major abdominal surgery between October 1998 and October 1999 were randomly divided into 3 groups. The patients in Group 1 received compression stockings, in Group 2 0.3 ml low-molecular weight heparin (nadroparine calcium 0.3 ml, 2850 IU AXa LMWH) subcutaneously and in Group 3 compression stockings and 0.3 ml LMWH. All symptomless patients evaluated with low extremity deep venous Doppler ultrasonography (DUSG), and patients who had pulmonary embolus (PE) suspicion evaluated with pulmonary scintigraphy. RESULTS: There were 91 patients in Group 1, 91 patients in Group 2 and 92 patients in Group 3. The mean age was 57.25 +/- 13.12, 54.53 +/- 13.54, and 53.65 +/- 13.28 respectively. Male/female ratio was 51/38, 56/35 and 62/30, in Group 1, 2 and 3 respectively. Twenty-seven patients in Group 1, 26 patients in Group 2 and 37 patients in Group 3 had risk factors. DUSG showed deep venous thrombosis (DVT) on the 7th postoperative day in 10 patients in Group 1, in 8 patients in Group 2 and in 3 patients in Group 3. Pulmonary scintigraphy showed PE suspicion in 6 patients in Group 1, 1 patient in Group 2 and 1 patients in Group 3. Wound hematoma and hemorrhage from abdominal drains were developed in 1/0, 8/2 and 3/1 patients in Groups 1, 2 and 3 respectively. Four patients in Group 1 and 2 patients in Group 2 died during the treatment (2.2%). Satistical analysis showed significant differences in PE and wound hematoma between Groups 1 and 2, in DVT and PE between Groups 1 and 3, in risk factors between Groups 2 and 3 (p < 0.05). The differences in DVT and PE and hematoma between group 2 and 3 were not significant. CONCLUSION: All treatment modalities could not prevent all thromboembolic complications. In our study combined treatment was the most effective one.

Abdomen↗

PubMed1999

Sexual behaviour during pregnancy.

The effects of pregnancy on sexuality were studied in 158 pregnant women. They were surveyed by questionnaire about sociodemographic variables and sexual behaviour. Dyspareunia was common in our study group during pregnancy. Pregnancy had a negative effect on orgasmic quality. Dyspareunia and orgasmic quality influenced coital frequency. Coital frequency declined as the month of the pregnancy increased. Pregnancy is a potent influence on sexuality irrespective of an individual's conditioning.

Adolescent↗