Measuring depression and stigma towards depression and mental health treatment among adolescents in an Arab-American community.

There has been limited research that has examined the prevalence of depression and attitudes towards depression and mental health treatment in Arab-American adolescents; we sought to assess these in a predominantly Arab-American community in metro Detroit. A health survey of adolescents aged 12-17 years was conducted (n=98). Participants were recruited from two local community organizations in Dearborn, MI. Depression was assessed by the Patient Health Questionnaire-9 (PHQ-9) Depression Scale, and attitude towards depression and willingness to seek help for mental health conditions were assessed by the Self-Stigma of Depression Scale (SSDS). To assess whether attitudes might be affected by information about mental health treatment, adolescents were randomized to view either an educational video about mental health, or a control video before responding to questions about their willingness to seek help for mental health conditions. Overall, 14% of Arab-American adolescents in this study endorsed moderate or moderately severe depression (PHQ-9 ≥ 11), suggesting a need to increase awareness of and access to mental health services and screening for Arab-American youth.

Intermediate-dose Ara-C plus G-CSF for stem cell mobilization in patients with lymphoid malignancies, including predicted poor mobilizers.

The optimal protocol for mobilization of hematopoietic stem cells in patients with lymphoid malignancies has not been determined so far. We retrospectively analyzed the efficacy and safety of Ara-C at a dose of 1.6 g/m(2) compared with CY at a dose of 4.0 g/m(2), both combined with filgrastim. Seventy and forty-five patients, respectively, were included, among whom 60% were defined as 'predicted poor mobilizers'. The use of Ara-C was associated with significantly higher peak number of circulating CD34(+) cells compared with CY (P<0.0001). In the Ara-C group, 95% of patients with multiple myeloma (MM) collected at least 5 × 10(6) CD34(+) cells/kg required for tandem transplantation, and 97% of lymphoma patients collected at least 2 × 10(6) CD34(+) cells/kg, needed for a single autologous hematopoietic SCT (autoHSCT), which was achieved with a single leukapheresis in 91% of cases. Results for the CY group were significantly inferior (P<0.0001). No patient mobilized with Ara-C experienced febrile neutropenia, whereas 35% required platelet transfusions. Among patients who proceeded to autoHSCT, the time of both neutrophil and platelet recovery was significantly shorter for those mobilized with Ara-C than CY. We conclude that intermediate-dose Ara-C+filgrastim is a very effective and relatively safe mobilization protocol for patients with lymphoid malignancies.

Impact of different dimethyl sulphoxide concentrations on cell recovery, viability and clonogenic potential of cryopreserved peripheral blood hematopoietic stem and progenitor cells.

BACKGROUND AND OBJECTIVES: The procedure of autologous hematopoietic stem/progenitor cell transplantation requires cryopreservation. Addition of DMSO is necessary to secure the viability of such cells, but this solvent is potentially toxic to stem cells' recipient. 10% DMSO solution is used by the majority of transplant centres. The aim of our study was to test if DMSO concentration might be reduced without negative impact on cell recovery and clonogenicity. MATERIALS AND METHODS: Samples were prospectively collected from 20 patients. Small volumes of leukapheresis products were frozen with different cryoprotective mixtures, containing 10%, 7·5%, 5% and 2·5% DMSO, respectively. The quality of cryoprotective mixtures was evaluated based on recovery, viability and clonogenic potential of hematopoietic stem cells after defreezing. RESULTS: Reduction in DMSO concentration to 7·5% or lower was associated with decreased recovery of nucleated cells. In contrast, the number of colonies was highest for 7·5% DMSO with significant differences when compared to 10% DMSO solution. CONCLUSION: Reduction in DMSO concentration from 10% to 7·5% may have favourable impact on hematopoietic recovery after autologous transplantation. The findings require confirmation in a clinical setting.

Low-dose zinc administration as an effective Wilson's disease treatment.

A case of a 11-yr-long Wilson's disease treatment in a 16-yr-old boy with neurologic presentation was analyzed and monitored. In the face of severe symptoms of chelator intolerance, a comparatively low dose of 100 mg of zinc has been administered for the entire 11-yr-long treatment. Considerable improvement of clinical status was achieved, with accompanying regression of central nervous system lesion. The parameters of copper metabolism were normalized with effective urine elimination. The low-dose oral zinc intake proved to be therapeutically effective, eliminating further copper tissue toxicity.

The antioxidant enzymes activity in the conditions of systemic hypersilicemia.

The effect of an excessive inorganic silicon oral intake on the activity of basic antioxidant enzymes was studied in rats. Activities of superoxide dismutase, catalase, and glutathione peroxidase were measured in liver and kidney tissues of animals receiving per os sodium metasilicate nonahydrate (Na2SiO3.9H2O) (Sigma, [St. Louis, MO]) dissolved in their drinking water. A decrease of the activity of all the studied enzymes was found in the samples derived from the experimental group. The results obtained indicate the free oxygen radicals participation in the potential pathologic events in the conditions of systemic hypersilicemia.

The influence of inorganic silicon (Si) on pituitary-thyroid axis.

The influence of silicon-treatment on the levels of TSH and thyroid hormones was studied in rats. Concentrations of thyrotropin (TSH), triiodothyronine (T3), and thyroxine (T4) were estimated in sera of rats receiving per os a soluble silicon compound--sodium metasilicate nonahydrate (Na2SiO3.9H2O), dissolved in the animals' drinking water. An increase in the TSH level in the tested group was observed, without statistically significant differences in T3 and T4 concentrations between the two groups of animals. The results provide evidence for the influence of silicon on the endocrine balance. They could also prove that this chemical element is capable of modifying the rate of some hormones' synthesis.

The action of excessive, inorganic silicon (Si) on the mineral metabolism of calcium (Ca) and magnesium (Mg).

The influence of silicon treatment on the levels of calcium and magnesium in blood serum and tissues was studied in rats. The concentrations of both elements were estimated in samples of sera and tissues of rats receiving per os a soluble, inorganic silicon compound--sodium metasilicate nonahydrate (Na2SiO3.9H2O (REACHIM, USSR)), dissolved in the animals' drinking water. A decrease of magnesium concentration in serum was observed with accompanying elevation of registered calcemia. Moreover, a reduction of tissue calcium levels was found with a simultaneous increase of magnesium tissue pool. The results provide evidence for silicon involvement in mineral metabolism. It could result in a modification of pathological processes concerning bone tissue.

Silicon metabolism. The interrelations of inorganic silicon (Si) with systemic iron (Fe), Zinc (Zn), and copper (Cu) pools in the rat.

The influence of silicon treatment on the levels of trace elements zinc (Zn), copper (Cu), and iron (Fe) in serum and tissues was studied in rats. The concentrations of silicon, iron, and zinc were estimated in samples of sera and tissues of rats receiving per os a soluble, inorganic silicon compound--sodium metasilicate nonahydrate (Na2SiO3.9H2O), dissolved in the drinking water. An increase of copper concentrations in liver and aortic walls in the experimental group was observed, with simultaneous reduction of zinc amounts in serum and all the tissue samples in the course of the experiment. The iron concentrations in the analyzed samples did not show any significant changes between both groups. The silicon levels in serum and in all the examined tissues were significantly higher in the tested group. The results provide evidence for the silicon interaction with copper and zinc, which could result in a number of metabolic process modifications, antiatheromatous activity among them.

Immunoglobulins and complement components levels in patients with lung cancer.

Sera from 96 patients with lung cancer were assayed in order to evaluate the concentrations of IgG, IgA, IgM, C3c and C4. Histologically, 49 of the patients had squamous cell carcinoma, 11--adenocarcinoma, 20--small cell carcinoma and 16--not identified lung cancer. No statistically significant differences were found between the concentrations of IgG and IgM in patients with carcinoma of the lung versus subjects in the control group. Both serum IgA and complement components (C30 and C4) were significantly elevated in almost all patients from the tumor group as compared with the levels in the control group.

Evaluation of elastin metabolism in children from families with high risk of atherosclerosis.

Markers of elastin metabolism were estimated in sera of children from families with a high risk of atherosclerosis (ATH). There was no statistically significant difference in the serum elastase-like activity between the groups studied. The concentration of elastin-derived peptides was statistically significantly elevated in the ATH group. Anti-elastin antibodies were found to be present in 73% of ATH children, while they circulated in 5% of control subjects only. Antibodies observed in the youngest ATH children were of the IgM type, suggesting the initial stage of the autoimmunization to elastin. The data obtained in this study may indicate an enhanced metabolism of elastin in ATH children.

The effect of silicon (Si) on lipid parameters in blood serum and arterial wall.

The influence of silicon treatment on the levels of lipid parameters of blood serum and aortic wall was studied in rats. The concentrations of total cholesterol, phospholipids, triglycerides, HDL-cholesterol, LDL-cholesterol, and HDL-phospholipids were measured in sera of rats receiving per os a soluble, inorganic silicon compound--sodium metasilicate nonahydrate (Na2SiO3.9H2O)--dissolved in the drinking water. In the aortic tissue levels of total cholesterol, triglycerides and phospholipids were estimated. An increase in HDL-cholesterol and HDL-phospholipid concentrations, with a simultaneous decrease of LDL-cholesterol and triglyceride levels, was observed in the sera of the tested group. The levels of total cholesterol and phospholipids in the sera, as well as the concentrations of lipids in the aortic walls, showed no significant differences. The results obtained could provide evidence for the existence of an additional mechanism of silicon antiatheromatous action, concerning the modification of activity of enzymatic systems involved in lipids metabolism.

Elastin and collagen content in the aorta of rabbits experimentally immunized with soluble elastin.

Experimental immunization of rabbits with soluble porcine elastin was performed. A statistically significant decrease in the level of insoluble elastin in the aorta of the immunized animals was observed. Estimations of soluble collagen fractions showed the rise of both salt-soluble and acid-soluble collagen in the aorta of rabbits immunized with soluble porcine elastin.

Early influence of ultrasonographic examination of the abdominal cavity on the concentration of the lipid system parameters in blood serum of healthy people.

Ultrasound waves play an important part in contemporary diagnosis and medical therapy. The effect of the ultrasounds used in medicine, on the course of the metabolic processes of the human organism exposed to the activity of ultrasounds is not known. An experiment was carried out to detect the early influence of ultrasonographic (USG) examination of the abdominal cavity on the concentration of the lipid system parameters in the blood serum of healthy subjects. A statistically significant decrease in the concentration of triglycerides and free fatty acids was noted 2 hours after USG examination. No change of concentration of total cholesterol and beta-lipoproteins was observed. The mechanisms of the interaction between ultrasounds and living matter are discussed.