THE ROLE OF TUMOR-SEEKING RADIOPHARMACEUTICALS IN THE DIAGNOSIS AND MANAGEMENT OF ADRENAL TUMORS.

CONTEXT: The variety of tumor-seeking radiopharmaceuticals, which are currently in clinical use, may have a potential role as imaging agents for adrenal gland tumors, due to physiological characteristics of this organ. OBJECTIVE: The purpose of this study was to evaluate the diagnostic potential of 99mTc-HYNIC-TOC, 99mTc(V)-DMSA, and 99mTc-MIBI in the assessment of adrenal tumors, by correlating with imaging findings and histopathologic results. DESIGN: The research is designed as a cross-sectional prospective study. PATIENTS AND METHOD: The study included 50 patients with adrenal tumors (19 hormone-secreting and 31 nonfunctioning) and 23 controls without adrenal involvement. In all patients, single-photon emission computed tomography (SPECT) was performed, using qualitative and semiquantitative analysis. The tumor to non-tumor tracer uptake was conducted by using a region-of-interest technique. Adrenal to background (A/B) ratio was calculated in all cases. RESULTS: 99mTc-HYNIC-TOC scintigraphy showed a high statistical significance between A/B ratios, while other two tracers resulted in a lower sensitivity, specificity and accuracy. Futhermore, 99mTc-HYNIC-TOC could have a high diagnostic yield to detect adrenal tumors (the receiver-operating-characteristic curve analysis, A/B ratio cut-off value of 8.40). CONCLUSION: A semiquantitative SPECT analysis showed that 99mTc-HYNIC-TOC is a highly sensitive tumor-seeking agent for the accurate localization of adrenal tumors.

ADIPONECTIN AS A POTENTIAL BIOMARKER OF LOW BONE MINERAL DENSITY IN POSTMENOPAUSAL WOMEN WITH METABOLIC SYNDROME.

CONTEXT: Adiponectin is an abundant adipokine, which has antiinflammatory, anti-atherosclerotic and vasoprotective actions, and potential antiresorptive effects on bone metabolism. It seems to be directly involved in the improvement and control of energy homeostasis, protecting bone health and predicting osteoporotic fracture risk. OBJECTIVE: To examine the relationship between adiponectin level and bone mineral density (BMD) in post-menopausal women with metabolic syndrome (MetS) and low BMD, and to estimate the prognostic significance of adiponectin in osteoporosis. DESIGN: Clinical-laboratory cross-sectional study including 120 middle-aged and elder women (average 69.18±7.56 years). SUBJECTS AND METHODS: The anthropometric parameters were measured for all examinees. Lumbar spine and hip BMD, as well as body fat percentage, were measured using a Hologic DEXA scanner. In all subjects serum adiponectin concentration was measured by ELISA method. RESULTS: The level of adiponectin was significantly positively correlated with BMD-total, BMD of the lumbar spine and BMD of the femoral neck (r=0.618, r=0.521, r=0.567; p<0.01). Levels of adiponectin and BMD are significantly lower in post-menopausal women with MetS and osteoporosis compared to patients with osteopenia (856.87±453.43 vs. 1287.32±405.21 pg/mL, p<0.01; BMD, p<0.05), and the highest values in healthy examinees. A cut-off value of adiponectin level for osteoporosis/osteopenia was 1076.22/1392.74 pg/mL. CONCLUSIONS: Post-menopausal women with MetS have significantly lower adiponectin level and low BMD compared to healthy examinees. Adiponectin may be an early, significant and independent predictor of developing osteoporosis in women with MetS, especially in post-menopausal period.

Effect of biphasic insulin aspart on glucose and lipid control in patients with Type 2 diabetes mellitus.

OBJECTIVE: This study examined the efficacy and safety of biphasic insulin aspart 30 (BIAsp 30) monotherapy in insulin-naive patients with Type 2 diabetes mellitus. RESEARCH DESIGN AND METHODS: In this 12-week, open-labelled, uncontrolled, clinical-experience study involving 71 patients with secondary oral antidiabetic agent failure, patients received BIAsp 30 after discontinuing oral antidiabetic drugs (OADs). Glucose and lipid concentrations, hypoglycaemic episodes and adverse events were assessed before and after treatment. Patient data were categorised according to previous OADs into the biguanides (BI) plus sulfonylureas/meglitinides (SU/MEG) and SU-only groups. RESULTS: After treatment, glucose and lipid control was significantly improved in both groups, with a greater improvement in the SU-only group. Mean glycated haemoglobin, fasting blood glucose and postprandial blood glucose excursion improved by 2.15 +/- 1.24%, 3.70 +/- 3.18 mmol/l and 1.26 +/- 2.65 mmol/l in the BI plus SU/MEG group, and by 3.09 +/- 1.62%, 6.11 +/- 5.02 mmol/l and 2.06 +/- 2.33 mmol/l in the SU-only group, respectively. Mean high-density lipoprotein cholesterol and triglycerides improved by 0.09 +/- 0.18 mmol/l and 0.94 +/- 1.17 mmol/l in the BI plus SU/MEG group and by 0.09 +/- 0.18 mmol/l and 1.04 +/- 2.72 mmol/l in the SU-only group, respectively. No major hypoglycaemic episodes or serious treatment-related adverse events were reported. CONCLUSIONS: Our study showed that BIAsp 30 treatment safely improved glucose and lipid control in insulin-naive patients with Type 2 diabetes poorly controlled on BI plus SU/MEG and SU-only. Key limitations were the lack of a comparator group and the short study duration.

Systemic response of peripheral blood leukocytes and their phagocytic activity during acute myocardial infarction.

OBJECTIVES: To determine changes in leukocyte counts and phagocytic activity of peripheral blood mononuclear (MN) and polymorphonuclear (PMN) cells as potential cellular markers of systemic immunological events in acute myocardial infarction (AMI). PATIENTS AND METHODS: Thirty patients with a first AMI and 30 healthy volunteers were examined. Immunological analyses were performed at admission and repeated at one and seven days after the acute event. MN and PMN cells were obtained from heparinized whole blood after centrifugation and separation on a density gradient, and incubated with a fixed number of heat-inactivated and labelled yeast particles. Total leukocyte counts, leukocyte populations and some parameters of phagocytic activity were determined: percentage phagocytosis, phagocytic index, absolute phagocytic index, count of phagocytes in a fixed volume of peripheral blood (CP) and phagocytic capacity. RESULTS: Patients with AMI had increased total leukocyte counts accompanied by increased PMN counts, while there were no significant differences in total MN count and MN populations. Except for the phagocytic index, all phagocytic parameters of MN and PMN cells were increased in patients with AMI at admission and on the first day of disease. On the seventh day after AMI only the CP of MN cells had increased significantly in patients with AMI, while percentage phagocytosis, CP and capacity of phagocytosis of PMN cells increased during the acute phase of AMI. CONCLUSIONS: These data suggest that AMI was followed with a strongly systemic inflammatory response to myocardial damage. Furthermore, activated MN and PMN cells may be a significant source of free radicals that may be involved in lipid peroxidation and produce tissue damage in the early postinfarction period.

[Hartnup disease (report of 2 cases in one family)]. / Hartnupova bolest (prikaz dva bolesnika is jedne porodice).

INTRODUCTION: The Hartnup mutation affects the amino acid transport system of the intestine and kidney used by a large group of neutral amino acids (monoamino-monocarboxylic acids) resulting in a characteristic pattern of neutral aminoaciduria [2, 5, 6]. METHODS AND PATIENTS: In this research clinical and neurological methods and a great number of laboratory tests were used. Patient 1. A 16-year-old girl, born in 1972, was a full-term newborn. Her psychomotor development was normal. She is the eldest of three children in the family. Till the age of 10 the girl was healthy, except for the mild skin disorders on uncovered parts of the body, face and hands, occurring in springtime almost every year. She had had two exacerbations of the disease. The first exacerbation lasted between the end of April and August 22, 1982. The second began in the middle of November 1987 and finished on May 31, 1988. A changeable and severe clinical feature in this girl was characterized by polymorphic, transient mainly cerebral symptoms, papilloedema with peripapillary haemorrhage and pellagra-like skin rash. At the beginning of the disease the left spastic haemiplegia with bilateral Babinski's reflex and diffuse brain oedema were observed. Signs of the upper motor neurone lesion and myoclonic jerks of limbs and face were most persistent during the first and second exacerbation of the disease. Dysinhibition phenomenon: mandibular, snout and palmomental reflexes were sometimes positive. Mental states at the time of hospitalization were changed and characterized by bradypsychic, torpid, disoriented in time and confused at the beginning of the disease. She had severe psychotic episodes during the second relapse of the disease. The symptoms and signs of the disease as well as pellagra-like skin rash resolved with nicotinamide therapy. Patient 2. A 38-year-old man; clinically healthy, with no skin lesions. A gross aminoaciduria was found in this case. However, the amino acids pattern was atypical. DISCUSSION: This new, rare disease was described [1] with complex and variable clinical symptoms, intermittent course, permanent aminoaciduria and other biochemical features. In our symptomatic patient diagnosis of Hartnup disease was established during the second exacerbation of the disease. CONCLUSION: Two cases of Hartnup disease, one symptomatic and one asymptomatic, were diagnosed in a five member family. A child in this family died at the age of 3.5 probably from Hartnup disease.

[Progeria syndrome--case report]. / Sindrom progerije.

A girl with progeria is described. The main clinical characteristics of this syndrome, also known as the Hutchinson-Gillford Disease are: alopecia, thin skin, loss of subcutaneous fat tissue, delayed eruption of deciduous and permanent dentition, skeletal hypoplasia, dysplasia and degeneration, retarded growth, preserved intellectual abilities, The main pathohystological finding concerns the generalized atherosclerosis (especially evident in coronary arteries, aorta, mesenteric arteries), and the main laboratory findings refer to mild and moderate elevation of serum cholesterol. The disease is characterised by a process of premature and accelerated aging. From theoretical and scientific standpoints, the disease is interesting as a model for studies on aging cell culture. Unfortunately, it is not yet possible to influence the outcome of the disease.

[Unilateral moyamoya disease associated with acrofacial vitiligo in a 13-year-old patient--case report]. / Udruzenost unilateralne bolesti mojamoja i akrofacijalnog vitiliga kod 13-godisnje bolesnice.

Cerebrovascular Moyamoya disease (MMD) is a clinical entity characterized by stenotic or occlusive lesions around the terminal portions of the internal carotid arteries (ICA) and the formation of abnormal vascular networks at the base or convexity. This condition is sporadic, and there are no pathological explanations for this cause. A case with unilateral juvenile MMD is reported. A 13-year-old girl with sudden episode of left limbs weakness, accompanied by transient dysphasia and seizures attack, was admitted to our hospital for further investigation. Computed tomography scanning showed an area of localized brain swelling in the right capsular-thalamic region. Angiographic findings demonstra-ted unilateral involvement. Cerebral panangiography reve-aled a high grade stenosis of the right supraclinoid ICA and a peculiar network (moyamoya phenomenon) formed by dilated basal collateral perforating arteries and produced a cloudy image resembling "a puff of smoke". Left carotid angiogram showed a collateral circulation through the anterior communicant artery and apportioned to the right cerebral hemisphere. The vertebrobasilar system was normal. An ultrasoud Doppler study demonstrated a severely decreased blood flow gradient (0.1 l/min) through the right hypoplastic ICA, while the left common and the left ICA showed remarkable increased blood flow, partly due to abondant collateral vessels. Acquired, non-progressive vitiligo with areas of complete pigment loss appeared on flexor wrists, extensor distal extremities, superior eyelids and especially on joints regions (elbow, knee and small joints of the hands and fret). This association has not been reported previosly.

[Joubert's syndrome]. / Joubertov sindrom.

In 1969 a new syndrome was described by Joubert et al. It is a very rare syndrome as only about 30 cases have been reported, and none in Yugoslavia. The main clinical characteristics are as ballows. - Disturbed respiratory rhythm alternating periods of hyperapnea and apnea) which tend to disappear as the child grows; - Abnormal eyemovements (jerky, rotatory, pendular); - Mental retardation (usually severe and which deteriorates with the age); and - Ataxia (sometimes also severe). The main neuropathological finding is dysplasia of the vermis cerebelli. Typical CT - findings consist of a very large cisterna magna communicating with the fourth ventricle. The prognosis of the syndrome is poor: half of the patients die within the first three years. Early recognition of the syndrome is important in view of prognosis and genetic counselling. The authors report a first case of Joubert's syndrome in Yuhoslavia, and review the relevant literature on this subject.