Unilateral spermatic cord torsion without ipsilateral spermatogenetic material: effects on testicular blood flow and fertility potential

This experiment was planned to answer the question of how the elimination of ipsilateral spermatogenetic material, which is necessary for contralateral testicular damage caused by an autoimmune response, affects contralateral testicular blood flow and fertility potential in unilateral spermatic cord torsion (USCT). Thirty-four male and 68 female adult albino rats were divided into three groups. Group 1 rats underwent a control operation, group 2 rats underwent subepididymal orchiectomy to eliminate spermatogenetic material, and group 3 rats underwent USCT after subepididymal orchiectomy. Testicular blood flows of the rats were measured by ¹³³Xe clearance technique. Additionally, to determine fertility potential, each male rat was housed with two female rats. Numbers of impregnated and delivered rats were recorded. Both mean testicular blood flow and fecundity of group 3 were significantly lower than those of groups 1 and 2. When compared with groups 1 and 2, fertility and mean number of the impregnated rats of group 3 were lower but the differences were not significant. These findings suggest that absence of spermatogenetic material in USCT reduces contralateral blood flow and fertility potential. Therefore, contralateral testicular damage originating from blood flow alterations rather than autoimmune mechanism should be considered to explain fertility problems encountered following USCT.     

Angiotensin-converting enzyme gene polymorphism significantly affects renal posttransplantation erythrocytosis

Posttransplantation erythrocytosis (PE) is a frequent problem in renal transplant patients. The pathogenesis and mechanisms of both the problem and therapy strategy are unknown. Since ACE and angiotensin 2 receptor inhibitors have been used to successfully manage PE, we speculated a relation between gene polymorphisms and this complication. Ninety-six ( 30 women, 66 men, age 34.4 +/- 11.0 years) renal transplant patients evaluated retrospectively, for gene polymorphisms of ACE, angiotensinogen, angiotensin 1 and 2 receptors (ATR1 and ATR2), as well as endothelial nitric oxide synthase (ecNOS). They were divided into two groups; patients with versus without PE, which was defined as >15 g/dL hemoglobin levels during the first year after renal transplantation. PE was found to be significantly more prevalent among D/D than I/I gene polymorphism of ACE genes (P <.04). The distribution of D/D, I/D, and I/I polymorphisms were 39.1%, 45.9%, and 7.6%, respectively. There was no difference between D/D and I/D polymorphisms. Comparing the I/D and I/I polymorphisms showed PE to be statistically more prevalent in the I/D polymorphism (P <.01). Logistic regression analysis revealed that D/D and I/D polymorphisms were significant risk factors for PE (P <.05, RR = 7.714 and P <.03, RR = 10.199, respectively). While previous studies revealed a relation between angiotensin II and PE, our study discovered the contribution of ACE gene polymorphism.     

Long-term results of uncemented Parhofer-Mönch screw rings

AIM: The aim of this study was an analysis of the long-term behaviour and implant migration of the Parhofer-M?nch-screw cup seen in patients between 1982 and 1991. METHOD: 92 cups (m : f = 53 : 39, mean age 53 +/- 7 years) were included mainly prospectively. After 118 +/- 45 months all patients were examined clinically and radiologically. Digital migration analysis was performed using the single-film X-ray analysis (Einbildr?ntgenanalyse, EBRA). RESULTS: 5 patients had died. 32 cups were revised, in 7 patients a loosening of the cup was suspected. The 10-year-survival was 71.4 %. In 53 of 81 analysed cups a migration of more than 1 mm was shown, 28 cups did not migrate. In comparison to these stable implants the survival of migrated cups was significantly inferior. CONCLUSION: The 10-year-survival and the high rate of implant migration document the poor results of the PM cup. In spite of an extraordinary primary stability, the failure of secondary osseointegration represents the main cause of loosening in this type of cup.     

The role of psychological factors in alopecia areata and the impact of the disease on the quality of life

BACKGROUND: The role of psychological factors in the pathogenesis of alopecia areata (AA) has long been the subject of debate. Numerous studies have provided controversial results. AIM: This case-control study was undertaken to determine the significance of stressful life events and other psychological factors in the etiopathogenesis of AA. The impact of the disease on the quality of life was also assessed. METHODS: Fifty-two adult patients (18 females and 34 males) diagnosed with AA and 52 age- and sex-matched individuals selected from hospital staff without any hair loss (control group) were evaluated using the major life events scale, Beck depression and Beck anxiety inventories, and the Short Form-36 health survey (SF-36). In addition, comparison was performed between two patient groups created according to whether or not they linked emotional trauma with their AA attack. RESULTS: There was no statistically significant difference between the patient and control groups with regard to the total scores of stressful major life events, depression, and anxiety. Of the eight subscales on SF-36, vitality and mental health scores were higher in the control group, whereas social functioning scores were higher in the patients. The total number of stressful life events was higher in patients who attributed their disease to a stressful life event than in those who did not. CONCLUSIONS: It appears unlikely that anxiety and depression play a major role in the etiopathogenesis of AA, but stressful life events may act as a trigger in the onset and/or exacerbation of the disease. Furthermore, AA seems to have a partly negative impact on the health-related quality of life.     

The effect of zinc sulphate in the prevention of radiation-induced dermatitis

There is currently substantial clinical interest in zinc (Zn) as a protective agent against radiation-related normal tissue injury. To further assess this drug's potential, the effect of Zn was studied in rats using a radiation-induced skin injury model. Sprague-Dawley rats were divided into four groups. Group 1 received neither Zn nor irradiation (control group). Group 2 received 30 Gy of gamma irradiation as a single dose to the right hind legs of the rats (RT Group). Groups 3 and 4 received the same irradiation plus 5 mg/kg/day Zn (RT+5 Zn group) or 10 mg/kg/day Zn orally (RT+10 Zn group), respectively. The rats were irradiated using a cobalt-60 teletherapy unit. Acute skin reactions were assessed every three days by two independent radiation oncology experts. At the endpoint of the study, light-microscopic findings were assessed by two independent expert pathology physicians. Clinically and histopathologically, irradiation increased dermatitis when compared with the control group (p < 0.05). The severity of radiodermatitis of the rats in the RT+5 Zn and RT+10 Zn groups was significantly lower than in the RT group (p < 0.05); radiodermatitis was seen earlier in the RT group than in the other groups (p < 0.05). Zn was found to be efficacious in preventing epidermal atrophy, dermal degeneration such as edema and collagen fiber loss, and hair follicle atrophy. The most protection for radiation dermatitis was observed in the RT+10 Zn group. It would be worthwhile studying the effects of zinc sulphate supplements in radiation-treated cancer patients, in the hope of reducing radiation-induced toxicity.     

Double-chambered right ventricle mimicking asymmetric septal hypertrophy

Double-chambered right ventricle (DCRV) is an uncommon congenital heart disease. Anomalous muscle bundles in the right ventricle divide the right ventricle into two portions and cause intracavitary obstruction of the right ventricle. We report a patient with DCRV mimicking asymmetric septal hypertrophy. We did clinical, echocardiographic and angiographic evaluation. Surgical intervention was successfully managed.     

Transvaginal sonography combined with saline contrast sonohysterography to evaluate the uterine cavity in patients with abnormal uterine bleeding and postmenopausal endometrium more than 5 mm

OBJECTIVES: To determine whether saline contrast sonohysterography (SCSH) gives additional information to that obtained by transvaginal sonography (TVS) for predicting endometrial abnormality in premenopausal, menopausal and postmenopausal patients with abnormal uterine bleeding and postmenopausal patients with endometrial thickness > 5 mm. METHODS: This was a prospective study at the Ege University Obstetrics and Gynecology Clinic in Izmir, Turkey. Patients presenting with abnormal bleeding related to uterine pathologies, postmenopausal patients with endometrial thickness more than 5 mm and scheduled for surgical treatment were prospectively included in our study conducted between 1 July, 2000 and 31 January, 2002. The uterine cavity was first evaluated with TVS in 53 premenopausal, menopausal, postmenopausal patients with abnormal uterine bleeding and postmenopausal patients whose endometrial thickness was > 5 mm measured by conventional ultrasound examination. SCSH was carried out later with the intention of establishing further surgical management (hysterectomy). Twenty of the patients had operative hysterectomy within the 1.5 year period of time. The presence of focally growing lesions and the type of lesion (endometrial polyp, submucous myoma, malignancy or unclear focal lesion) were noted at ultrasound examination and at hysteroscopy, and then hysterectomy material was examined by Ege University's Pathology Department which provided a detailed evaluation of the uterine cavity. RESULTS: Based on normal endometrial morphology alone, the results for detection of an abnormal uterine cavity were as follows: sensitivity of TVS 0.94, SCSH 0.97; specificity of TVS 0.56, SCSH 0.62; positive predictive value of TVS 0.79, SCSH 0.81; negative predictive value of TVS 0.83, SCSH 0.93. Transvaginal sonography combined with SCSH was superior to TVS for detection of intracavitary abnormalities. When normal endometrial morphology was combined with an endometrial thickness of < 12 mm for evaluation of all abnormalities including hyperplasia, the diagnostic potential of TVS or SCSH was almost unchanged. Transvaginal sonography missed 24% of the polyps. CONCLUSIONS: Sonohysterography was a sensitive tool and was superior to TVS used alone for evaluation of the uterine cavity in patients who underwent operative surgery for abnormal uterine bleeding.     

Oral acitretin treatment in severe congenital ichthyosis of the neonate

Two newborn infants with ichthyosis, one with lamellar ichthyosis and one with nonbullous ichthyosis form erythroderma, who presented at birth with a collodion baby appearance, were treated with acitretin (1 mg/kg/day). Clinical improvement was achieved shortly after treatment. The second case received oral retinoid for 3.5 months and was followed for nine months. The result was excellent. The treatment resulted in a satisfactory improvement in the skin condition of the first case. The tolerance to the drug was good. Side effects were not observed. It was concluded that early management of severe ichthyosis cases could prevent life-threatening events such as hyperthermia, disturbance in electrolyte and fluid balance, and infection.