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1.
J Matern Fetal Neonatal Med ; 36(1): 2220564, 2023 Dec.
Article in English | MEDLINE | ID: mdl-37290964

ABSTRACT

BACKGROUND: Congenital CMV infection (cCMV) is the most common congenital infection with 10-15% of cases developing symptomatic disease. Early antiviral treatment is of essence when symptomatic disease is suspected. Recently, the use of neonatal imaging has been implicated as a prognostic tool for long term sequalae among asymptomatic newborns at high risk. Even though neonatal MRI is commonly used in neonatal symptomatic cCMV disease, it is less often used in asymptomatic newborns, mainly due to cost, access and difficulty to perform. We have therefore developed an interest in assessing the use of fetal imaging as an alternative. Our primary aim was to compare the fetal and neonatal MRIs in a small cohort 10 asymptomatic neonates with congenital CMV infection. METHODS: We performed a single-center retrospective cohort study (case-series) on a convenience sample of children born from January 2014 to March 2021 with confirmed congenital CMV infection who had undergone both fetal and neonatal MRIs. We created a checklist of relevant cerebral abnormalities and asked 4 blinded radiologists to assess the MRIs (2 for each, namely fetal and neonatal) and then compared the findings between the fetal and neonatal imaging as well as the concordance in reporting of abnormalities within each category. FINDINGS: Overall concordance between prenatal and postnatal scans was high (70%). When comparing the two blinded reports for each MRI, we found high levels of concordance: 90% concordance for fetal MRIs and 100% for neonatal MRIs. The most common abnormalities identified in both fetal and neonatal scans were "abnormal white matter hyperintensity" and "subependymal cysts." INTERPRETATION: Even though this is a small descriptive study, it indicates that fetal MRI could potentially provide us with similar information as neonatal imaging. This study could form the basis for subsequent larger future studies.


Subject(s)
Cytomegalovirus Infections , Fetal Diseases , Pregnancy , Female , Child , Infant, Newborn , Infant , Humans , Retrospective Studies , Cytomegalovirus Infections/diagnostic imaging , Cytomegalovirus Infections/congenital , Magnetic Resonance Imaging , Neuroimaging
3.
BMC Psychiatry ; 20(1): 527, 2020 11 06.
Article in English | MEDLINE | ID: mdl-33158431

ABSTRACT

BACKGROUND: The Distress Thermometer (DT) is worldwide the most commonly used instrument for quick screening of emotional burden in patients with cancer. In order to validate the Greek version of the DT in the Greek population we aimed to explore the capacity of the DT to identify patients with comorbid depressive diagnosis. METHODS: We analyzed the routinely collected clinical data from 152 patients with cancer who had been evaluated by the consultation-liaison psychiatric service and had received a diagnosis of either depressive disorder or no psychiatric diagnosis. The score of the DT accompanied by the list of problems in the Problem List, the depression status, and the clinical and demographic characteristics entered the data sheet. RESULTS: The ROC analysis revealed that the DT achieved a significant discrimination with an area under the curve of 0.79. At a cut-off point of 4, the DT identified 85% of the patients with an ICD-10 depressive diagnosis (sensitivity) and 60% of the patients without a psychiatric diagnosis (specificity). The positive predictive value was 44%, the negative predictive value 92% and the diagnostic odd ratio 8.88. Fatigue and emotional difficulties were the most commonly reported problems by the patients. CONCLUSION: The Greek version of the DT has a sufficient overall accuracy in classifying patients regarding the existence of depressive disorders, in the oncology setting. Therefore, it can be considered as a valid initial screening tool for depression in patients with cancer; patients scoring ≥4 should be assessed by a more thorough mental evaluation.


Subject(s)
Depression , Neoplasms , Depression/diagnosis , Greece , Humans , Mass Screening , Psychometrics , Stress, Psychological , Surveys and Questionnaires , Thermometers
4.
Case Rep Urol ; 2019: 7606530, 2019.
Article in English | MEDLINE | ID: mdl-31934489

ABSTRACT

INTRODUCTION: Solid, fat-containing tumors of the testes are extremely rare with only a few cases having been reported so far, contrary to the more frequent occurrence of paratesticular lipomatosis. Testicular angiomyolipomas and gonadal involvement in Cowden's disease, although infrequently occurring, are known examples of fat-bearing testicular lesions. Hereby, we present an extremely rare case of intratesticular angiolipoma. Angiolipomas are benign tumors of the subcutaneous tissue commonly occurring in the trunk and the extremities. Histologically, they are characterized by ample vascularity and an excess of mature adipocytes. Definitive diagnosis is established by biopsy of the lesion. PRESENTATION OF THE CASE: A 35-year-old patient presented to our andrology outpatient clinic for fertility assessment. Physical examination of external genitalia revealed no significant pathology. Testicular ultrasound however depicted an isoechoic lesion on the upper pole of the right testis measuring 1.8 cm × 0.8 cm × 1 cm and exhibiting intense arterial flow. After sonographic and MRI investigation, the patient was referred for semen analysis and cryopreservation. Subsequently, the patient underwent testicular biopsy (frozen section biopsy) and right partial orchiectomy. Final histology reported a noninfiltrating testicular angiolipoma. No recurrences have been observed in the follow-up period. DISCUSSION: Angiolipomas, which mainly occur in the trunk and extremities, are classified as infiltrating and noninfiltrating. The diagnosis is based on both clinical and histologic criteria, and the main method of treatment for both types is by surgical excision. The infiltrating type exhibits higher recurrence rates. CONCLUSION: Angiolipomas commonly occur in the subcutaneous tissue and have been invariably treated by radical excision. Hereby, we report the first case of an intratesticular, noninfiltrating type angiolipoma which was treated by partial orchiectomy.

5.
Schizophr Res ; 129(2-3): 201-4, 2011 Jul.
Article in English | MEDLINE | ID: mdl-21470828

ABSTRACT

Evidence suggests that hippocampal volumetric abnormalities are present in first-episode schizophrenia. The hippocampus contains the highest brain levels of neurotrophic factors, which are major determinants of neuronal plasticity. Brain-derived neurotrophic factor (BDNF) influences neuronal survival, differentiation, synaptogenesis, and maintenance and is also correlated with neuronal activation in the hippocampus. BDNF is also involved in the development and modulation of dopaminergic-related systems. Alterations of serum BDNF levels have been shown in a number of studies with first episode patients with schizophrenia, probably reflecting an association between BDNF and the pathogenesis of the disorder. In the present study we investigated the correlation between serum BDNF levels and hippocampal volumes in a sample of first episode drug-naïve patients with schizophrenia (FEP) and healthy control subjects. We found that hippocampal volume (HV) was decreased in FEP patients. Corrected right HV of FEP patients were significantly smaller compared to corrected right HVs of healthy subjects. The serum BDNF levels in the sample of FEP patients was significantly reduced compared to the healthy subjects. A significant positive association was found between serum BDNF and the corrected right HV in the group of patients such that the smaller the HV, the more reduced the serum BDNF levels. (Pearson r=0.452, p=0.045). Our findings indicate that low serum BDNF levels are associated with reduction in HV at the onset of schizophrenia and may further support the theory of a neuroprogressive-neurotoxic reaction associated with the onset of psychosis.


Subject(s)
Brain-Derived Neurotrophic Factor/blood , Hippocampus/pathology , Psychotic Disorders , Schizophrenia/complications , Adult , Female , Functional Laterality , Humans , Magnetic Resonance Imaging/methods , Male , Psychotic Disorders/blood , Psychotic Disorders/etiology , Psychotic Disorders/pathology , Statistics as Topic , Young Adult
6.
Int Ophthalmol ; 31(2): 135-9, 2011 Apr.
Article in English | MEDLINE | ID: mdl-21279534

ABSTRACT

We report on a case of extensive unilateral visual field loss due to a peripapillary arteriovenous communication. Interventional case report. A 27-year-old Caucasian woman who was initially managed for retrobulbar optic neuritis underwent fundus fluorescein angiography (FFA) and indocyanine green angiography (ICGA) 6 months later that revealed an unusual course of the central retinal vein with focal dilatation and co-existent aneurysmal distention of the adjacent large choroidal vein. Subsequent colour Doppler flow imaging of the dilated area confirmed the existence of arterial flow suggesting a "vascular steal" phenomenon resulting in choroidal and optic disc ischaemia. Brain magnetic resonance imaging (MRI) revealed small focal capillary vessel abnormalities in the parietal cortex. The present case highlights the important role of ICGA and FFA in the assessment of patients with optic disc pallor and visual field loss. In our case an unusual ocular vascular abnormality was attributed to a congenital malformation and therefore an unnecessary therapeutic intervention was avoided.


Subject(s)
Arteriovenous Malformations/complications , Optic Disk/blood supply , Vision Disorders/etiology , Visual Fields , Adult , Angiography , Choroid/blood supply , Coloring Agents , Female , Fluorescein Angiography , Fundus Oculi , Humans , Indocyanine Green , Ischemia/complications , Retinal Vein , Ultrasonography, Doppler, Color , Vasodilation , Veins , Vision Disorders/diagnosis , Vision Disorders/physiopathology
7.
Transplant Proc ; 42(5): 1502-6, 2010 Jun.
Article in English | MEDLINE | ID: mdl-20620463

ABSTRACT

OBJECTIVE: Transcranial Doppler sonography (TCD) provides accurate confirmation of cerebral circulatory arrest (CCA) in brain death (BD), but is not feasible in patients with absent temporal bone windows. We added the transorbital approach in the TCD protocol for the diagnosis of CCA and compared findings with angiography. Furthermore, we evaluated whether reporting the angiographic and sonographic confirmation of CCA to relatives of brain-dead patients improves their comprehension and satisfaction with the medical information. PATIENTS AND METHODS: Eighty-two clinically brain-dead patients underwent 4-vessel angiography, TCD of the basilar and middle cerebral arteries, and transorbital Doppler sonography (TOD) of the internal carotid arteries. Relatives were randomly allocated to 41 in whom BD was presented as a clinical diagnosis (group A) and to 41 in whom BD was presented as a clinical diagnosis confirmed by TCD and angiography (group B). Comprehension and satisfaction of the relatives were assessed using an interview and a questionnaire. RESULTS: Both angiography and TCD verified CCA in all cases (k = 1). In 11 patients with failure of the transtemporal approach, CCA was confirmed by the transorbital recordings. The addition of TOD enabled 15.5% more cases of CCA to be diagnosed by TCD. Group B exhibited improved comprehension and satisfaction rates (P < .05). CONCLUSIONS: The addition of TOD increases the efficacy of TCD in confirming CCA in BD. Reporting confirmation of CCA to families of brain-dead patients may improve their comprehension and satisfaction with the provided medical information.


Subject(s)
Brain Death/diagnostic imaging , Heart Arrest/diagnostic imaging , Ultrasonography, Doppler, Transcranial/methods , Blood Pressure , Carotid Artery, Internal/diagnostic imaging , Cerebrovascular Circulation , Family , Heart Rate , Humans , Intensive Care Units , Tissue Donors
8.
Eur Neuropsychopharmacol ; 20(2): 132-6, 2010 Feb.
Article in English | MEDLINE | ID: mdl-19740630

ABSTRACT

The imaging of the dopamine transporter could demonstrate the implication of dopaminergic pathway in the appearance of tardive dyskinesia. We report a case with psychotic and tardive dyskinesia symptoms. A DAT scan showed decreased dopamine transporter uptake in the area of brain's basal gaglia. A trial with quetiapine improved both psychotic and TD symptoms while a second DAT scan showed improvement status. We conclude that increased dopamine transporter uptake seemed to associate with the improvement of TD.


Subject(s)
Corpus Striatum/metabolism , Dopamine Plasma Membrane Transport Proteins/metabolism , Dyskinesia, Drug-Induced/metabolism , Schizophrenia/metabolism , Tomography, Emission-Computed, Single-Photon , Aged , Antipsychotic Agents/therapeutic use , Corpus Striatum/diagnostic imaging , Corpus Striatum/drug effects , Dibenzothiazepines/therapeutic use , Dyskinesia, Drug-Induced/diagnostic imaging , Dyskinesia, Drug-Induced/drug therapy , Female , Humans , Quetiapine Fumarate , Schizophrenia/complications , Schizophrenia/diagnostic imaging , Schizophrenia/drug therapy
9.
Emerg Med J ; 26(9): 630-4, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19700575

ABSTRACT

Enlargement of the optic nerve sheath has been described in patients with raised intracranial pressure (ICP), thereby serving as one of its indicators. Optic nerve sonography offers rapid bedside assessment of the optic nerve sheath diameter and has recently been introduced for the non-invasive detection of raised ICP, particularly in patients with severe brain injury. This review explains the pathophysiology of optic nerve sheath enlargement as a result of intracranial hypertension, describes the technique and clinical use of optic nerve sonography, and summarises the studies which have tested this modality in the non-invasive evaluation of ICP.


Subject(s)
Brain Injuries/diagnostic imaging , Intracranial Hypertension/diagnostic imaging , Optic Nerve/diagnostic imaging , Brain Injuries/physiopathology , Humans , Intracranial Hypertension/physiopathology , Intracranial Pressure/physiology , Ultrasonography
11.
Clin Exp Obstet Gynecol ; 34(2): 85-7, 2007.
Article in English | MEDLINE | ID: mdl-17629158

ABSTRACT

PURPOSE: The purpose of this study was to compare the efficacy and safety profile of twice daily versus the conventional three daily intake of cefaclor administrated orally for five to seven days in the treatment of asymptomatic bacteriuria or acute cystitis in pregnant women with a history of hypersensitivity to penicillin. METHODS: Between August 2003 and August 2004, 63 pregnant women with a positive urine culture and a history of suspicion of hypersensitivity to penicillin were randomly divided into two groups. The women in the first group received 500 mg of cefaclor while those in the second group received 750 mg of cefaclor for five to seven days. Laboratory and clinical results were assessed a week and a month after complettion of the therapy. RESULTS: Final therapy (bacteriologic eradication) succeeded in 93.7% (30/32) of the first group and in 90.3% (28/31) of the second group. CONCLUSION: Dosage of cefaclor at 750 mg is as effective as conventional cefaclor at 500 mg and better tolerated.


Subject(s)
Bacteriuria/drug therapy , Cefaclor/administration & dosage , Cystitis/drug therapy , Drug Hypersensitivity , Pregnancy Complications, Infectious , Acute Disease , Administration, Oral , Adolescent , Adult , Anti-Bacterial Agents/administration & dosage , Drug Administration Schedule , Female , Humans , Penicillins/adverse effects , Pregnancy , Treatment Outcome
13.
Cephalalgia ; 25(12): 1133-45, 2005 Dec.
Article in English | MEDLINE | ID: mdl-16305602

ABSTRACT

The aim of this study was to evaluate the intra- and inter-examiner reliability and validity of neck range of motion (ROM) measurements. Thirty-five healthy subjects were assessed in all neck movements from two initial positions, sitting and standing, actively (open and closed eyes) and passively by using a 3D ultrasound-based motion analysis device (Zebris). Three tests were employed to assess intra-examiner reliability and two examiners used for the inter-examiner reliability. X-rays in neck flexion and extension were used to validate the Zebris system. The standing position yielded higher intraclass correlation coefficient (ICC) values (>0.86) with less error [smallest detectable difference (SDD)<13.8%] than sitting (ICC>0.79, SDD<14%). Passive assessment of neck ROM presented better reproducibility than active assessment with open or closed eyes in both positions. The inter-examiner reliability was moderate (ICC=0.43-0.68). The correlation between the Zebris system and X-rays was high in both flexion and extension movements. The results showed that the most reliable protocol for assessment of neck ROM is a passive measurement in the standing position. The measurements were well validiated against X-rays and the experience of the investigators must be considered before any comparison among studies is employed.


Subject(s)
Cervical Vertebrae/diagnostic imaging , Cervical Vertebrae/physiology , Image Interpretation, Computer-Assisted/methods , Imaging, Three-Dimensional/methods , Physical Examination/methods , Range of Motion, Articular/physiology , Adult , Female , Humans , Male , Middle Aged , Movement/physiology , Observer Variation , Radiography , Reproducibility of Results , Sensitivity and Specificity , Ultrasonography
14.
Hepatogastroenterology ; 52(62): 558-62, 2005.
Article in English | MEDLINE | ID: mdl-15816477

ABSTRACT

BACKGROUND/AIMS: To describe imaging features of cirrhosis-related intrathoracic disease. METHODOLOGY: Chest CTs of 1038 cirrhotic patients (mean age 53 yrs; range, 17-79) were evaluated for: bronchoarterial ratio (BAR), arteriovenous malformations, interstitial opacities, emphysema, and pleural effusions. Lymphangiography, pulmonary angiography, cardiac ultrasound and scintigraphy were selectively performed. RESULTS: Mean BAR was 0.83+/-0.19. In two patients with hepatopulmonary syndrome (HPS), mean BAR was 0.55. HRCT detected interstitial lung opacities in 15 patients. Signs of fibrosis were seen in 7 (only two associated to biliary cirrhosis) and interstitial edema in 8. Accurate pattern recognition was achieved in 10/15 cases (66.6%). Of the 93 patients with emphysema only one had documented alpha1-AT deficiency (1.08%). Multiple type 1 vascular dilatations were visualized in two patients with HPS. Hepatic hydrothorax was present in 49 patients (4.72%); right-sided in 34 (69.4%), bilateral in 9 (18.4%) and left-sided in 6 (12.2%). Hepatic chylothorax was confirmed in 3 patients. Lymphangiography demonstrated the site of leakage and the engorged thoracic duct. CONCLUSIONS: CT can identify intrathoracic pathology associated with liver disease. Decreased BAR is highly specific for HPS. However, a multimodality approach is necessary to depict cases of liver origin.


Subject(s)
Liver Cirrhosis/complications , Radiography, Thoracic , Radionuclide Imaging , Thoracic Diseases/diagnosis , Thoracic Diseases/etiology , Ultrasonography , Adolescent , Adult , Aged , Angiography , Arterioles/diagnostic imaging , Bronchi/blood supply , Hepatopulmonary Syndrome/diagnostic imaging , Humans , Middle Aged , Tomography, X-Ray Computed/methods
15.
Neoplasma ; 52(2): 150-8, 2005.
Article in English | MEDLINE | ID: mdl-15800714

ABSTRACT

The aim of our study was to analyze prognostic factors, effect of treatment and survival outcome of a contemporary cohort of melanoma patients with cerebral metastases and eventually propose new recommendations regarding therapy. Sixty four patients with melanoma brain metastases were treated in our department within a 15-year period. We performed a retrospective analysis of their survival with respect to the type of treatment instituted. Four groups were formed according to treatment: Group A patients treated with surgery followed by radiotherapy; group B temozolomide as first-line treatment and radiotherapy after cerebral disease progression; group C radiotherapy alone; group D supportive care only. Patients* characteristics influenced the selection of treatment modality: Group A (7.8%) patients with a single brain metastasis (p=0.001) and controlled extra-cranial disease (p<0.0001), while Group D (21.8%) patients with ulcerated primary lesions (p=0.010) and uncontrolled extra-cranial disease (p<0.0001). Only group B (26.6%) and C (43.7%) patients with similar characteristics including more than one brain lesion. Median overall survival was 3 months. In univariate analysis, median survival for groups A, B, C and D was 12, 5, 3 and 2 months, respectively (p<0.0001). The survival difference between the surgery and non-surgery groups was statistically significant (p=0.0011). Patients treated with supportive care had the worse prognosis (p<0.0001). A survival benefit for patients receiving first-line treatment with temozolomide, as compared to those receiving radiotherapy alone was noted (p=0.0267). In multivariate survival analysis, the number of brain lesions (p=0.0138), the absence of uncontrolled extra-cranial disease (p=0.00221) and the type of treatment for the cerebral disease (p=0.0053) remained significant independent survival predictors. Patients' characteristics remain a critical factor for treatment selection. The number of brain metastases, the extent of disease and the type of treatment represent independent survival predictors. Melanoma patients with a single brain metastasis and controlled extra-cranial disease gain a survival benefit, if surgically treated. Including temozolomide in the first-line treatment of melanoma patients with brain metastases who would have been treated with radiotherapy alone, might present a promising future direction affecting the length of survival.


Subject(s)
Brain Neoplasms/secondary , Dacarbazine/analogs & derivatives , Melanoma/secondary , Skin Neoplasms/pathology , Aged , Antineoplastic Agents, Alkylating/therapeutic use , Brain Neoplasms/drug therapy , Brain Neoplasms/radiotherapy , Brain Neoplasms/surgery , Combined Modality Therapy , Dacarbazine/therapeutic use , Disease Progression , Female , Humans , Male , Melanoma/drug therapy , Melanoma/radiotherapy , Melanoma/surgery , Middle Aged , Prognosis , Radiotherapy, Adjuvant , Retrospective Studies , Survival Analysis , Temozolomide , Treatment Outcome
16.
Br J Ophthalmol ; 86(12): 1369-73, 2002 Dec.
Article in English | MEDLINE | ID: mdl-12446368

ABSTRACT

AIM: To investigate the effect of vitamin C and E supplementation in the levels of nitrite, nitric oxide (NO) related metabolite, and ocular surface parameters in diabetic patients. METHODS: 50 patients with non-insulin dependent diabetes mellitus were given vitamin C (1000 mg/day) and vitamin E (400 IU/day) supplementation for 10 days. Nitrite levels in tears were measured by photometric determination before and after vitamin supplementation. Tear function parameters (Schirmer test I, BUT, ocular ferning test) and brush cytology analysis of the conjunctival epithelium were also evaluated. RESULTS: Nitrite levels were found to be significantly reduced (p<0.05) after 10 days of vitamin C and E supplementation. Improved values for Schirmer test, BUT test, and ocular ferning test were also found. Goblet cell density and grading of squamous metaplasia showed a significant improvement. CONCLUSIONS: Oxidative stress and free radical production are elevated in diabetes mellitus. Antioxidants, such as vitamin C and vitamin E, probably have an important role in reducing the oxidative damage produced by nitric oxide and other free radicals and improving the ocular surface milieu.


Subject(s)
Ascorbic Acid/administration & dosage , Conjunctiva/drug effects , Diabetes Mellitus, Type 2/metabolism , Nitric Oxide/analysis , Tears/chemistry , Vitamin E/administration & dosage , Administration, Oral , Aged , Conjunctiva/metabolism , Conjunctiva/pathology , Female , Humans , Male , Metaplasia , Middle Aged , Nitrites/analysis
17.
Skeletal Radiol ; 31(9): 547-9, 2002 Sep.
Article in English | MEDLINE | ID: mdl-12195511

ABSTRACT

The case of a 50-year-old man with chondrosarcoma of the larynx treated with radiotherapy is reported. The patient presented with hoarseness and dyspnea. He underwent computed tomography (CT), which demonstrated a soft tissue mass of the larynx. Direct laryngoscopy with biopsy established the diagnosis of chondrosarcoma. Although experience with radiotherapy in these cases has been lacking in the literature, it was considered and eventually used, as radical surgery would result in severe cosmetic and functional impairment. Radiation therapy alone resulted in long-term remission of the tumour for more than 3 years. The patient has been followed up using CT and direct laryngoscopy for early detection of recurrence or metastases.


Subject(s)
Chondrosarcoma/radiotherapy , Laryngeal Neoplasms/radiotherapy , Chondrosarcoma/diagnostic imaging , Humans , Laryngeal Neoplasms/diagnostic imaging , Laryngoscopy , Male , Middle Aged , Tomography, X-Ray Computed
19.
Hepatogastroenterology ; 46(29): 2901-8, 1999.
Article in English | MEDLINE | ID: mdl-10576370

ABSTRACT

BACKGROUND/AIMS: The evaluation of the clinical use of CT portography (CTp) and post-lipiodol CT (CT post-lip) in terms of therapeutic implications in patients with liver malignancies, particularly hepatocellular carcinoma (HCC). METHODOLOGY: We prospectively evaluated 130 patients with CTp and CT post-lip: 109 with HCC and underlying cirrhosis (group I) and 21 with liver metastases considered for surgical resection (group II). All patients also underwent hepatic angiography (hA). Mean lesion size was 4.6 cm and 2.2 cm for group I and II respectively. Previous contrast-enhanced CT studies were available for comparison. RESULTS: Diagnostic CTp examinations resulted in only 84.4% of group I due to enhancement in homogeneities and in all patients from group II. In comparison with the referral CT, additional lesions were seen in 83.6% of the HCC group and in 66.6% of the metastatic group that implicated treatment alterations in 15.21% and in 23.8% of them, respectively. Hepatic angiography revealed hypervascularity in 91.3% of HCC lesions and in 33.3% of metastatic ones. CT post-lip images suitable for evaluation resulted in 104/130 patients (80%). At CT post-lip false negative results were observed in 33.73% patients with HCC and in 30.95% patients with liver metastases. Selective lipiodol retention was seen in only 50% of the biopsy proved satellites. CONCLUSIONS: CTp reveals additional lesions that have therapeutic implications in at least 15% of HCC patients and in 20% of patients with metastatic disease, and should be routinely included in the preinterventional work-up particularly for cases in which intraarterial or percutaneous treatment is scheduled. By contrast, CT post-lip seems to be of limited value unless it is evaluated in combination with CTp and angiography.


Subject(s)
Carcinoma, Hepatocellular/diagnostic imaging , Contrast Media , Iodized Oil , Liver Neoplasms/diagnostic imaging , Portography , Tomography, X-Ray Computed , Adult , Aged , Carcinoma, Hepatocellular/surgery , Female , Humans , Liver Cirrhosis/diagnostic imaging , Liver Neoplasms/secondary , Liver Neoplasms/surgery , Male , Middle Aged , Prospective Studies , Radiographic Image Enhancement , Sensitivity and Specificity
20.
J Biol Chem ; 272(42): 26720-6, 1997 Oct 17.
Article in English | MEDLINE | ID: mdl-9334257

ABSTRACT

Low ratio hybridization subtraction technique was previously used in this laboratory to enrich and isolate a number of low abundance UV-inducible hamster transcripts (Fornace, A. J., Jr., Alamo, I. J., and Hollander, M. C. (1988) Proc. Natl. Acad. Sci. U. S. A. 85, 8800-8804) that led to the identification and cloning of five important hamster and human GADD genes (Fornace, A. J., Jr., Nebert, D. W., Hollander, M. C., Luethy, J. D., Papathanasiou, M., Fargnoli, J., and Holbrook, N. J. (1989) Mol. Cell. Biol. 9, 4196-4203). In this study we have characterized the remaining DNA damage-inducible (DDI) transcripts. Of the 24 DDI clones, 3 clones (A13, A20, and A113) representing different regions of the same hamster cDNA exhibited near perfect homology to human p21(WAF1/CIP1) cDNA. The DDI clones A26, A88, and A99 displayed very high sequence homologies with the human proliferating nuclear antigen, rat translation initiation factor-5 (eIF-5), and human thrombomodulin, respectively, whereas clones A29 and A121 matched with express sequence tagged sequences of unknown identity. The DDI clones A18, 106, and A107 were different isolates of the same hamster cDNA (hereafter referred to as A18) and displayed high sequence homology with the members in the heterogeneous ribonucleoprotein (hnRNP) family. Using the hamster A18 partial-length cDNA as a probe, we screened human fibroblast cDNA library and isolated the corresponding full-length human cDNA. The deduced amino acid sequence revealed that the putative protein contains all the canonical features of a novel glycine-rich hnRNP. The A18 mRNA levels were specifically increased in response to DNA damage induced by UV irradiation or UV mimetic agents. Thus the putative A18 hnRNP is the first hnRNP whose mRNA is specifically regulated in response to UV-induced DNA damage; accordingly, it may play some role in repair of UV-type DNA damage.


Subject(s)
DNA Damage , RNA, Messenger/metabolism , RNA-Binding Proteins/genetics , Amino Acid Sequence , Animals , Base Sequence , Cloning, Molecular , Cricetinae , DNA, Complementary , Humans , Molecular Sequence Data , RNA, Messenger/genetics , Sequence Homology, Amino Acid , Sequence Homology, Nucleic Acid , Tumor Cells, Cultured , Ultraviolet Rays
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