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Search Results: 1 - 10 of 607762 matches for " F. M. P. Kanjingulu "
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Blood Pressure Patterns and Factors Associated with Relative Hypertension among Steady State Sickle Cell Disease Patients in Kinshasa, Democratic Republic of the Congo: A Cross-Sectional Study  [PDF]
P. I. Mboliasa, F. B. Lepira, J. R. Makulo, A. Nkodila, E. K. Sumaili, J. B. Bukabau, V. M. Mokoli, A. L. Longo, C. V. Zinga, F. M. P. Kanjingulu, Y. M. Nlandu, Y. M. Engole, M. M. Mukendi, E. M. Kadima, C. K. Ilunga, P. M. Ekulu, N. M. N. Nseka
World Journal of Cardiovascular Diseases (WJCD) , 2018, DOI: 10.4236/wjcd.2018.83021
Abstract: Background: Although systemic hypertension is rarely seen in steady state sickle cell disease (SCD), relative hypertension has been reported to be associated with an increased risk of cardiovascular and renal complications. Objective: To determine the prevalence of BP patterns and assess factors associated with relative hypertension insickle cell anemia (SCA) adult patients. Methods: Clinical data and office BP were obtained from 103 consecutive steady-state SCA adult patients (mean age 26 ± 7.9 years, 66% females, 22.3% on hydroxyurea) attending four healthcare centers providing SCD-specific care in Kinshasa. Seated BP was measured using an automated electronic device. Three consecutive blood pressure measurements were taken with 2 minutes interval between readings and the average of the 2 last readings was considered for the analyses. Normal BP, relative hypertension and systemic hypertension were defined as BP < 120/70 mmHg, 120 - 139/70 - 89 mmHg and ≥140/90 mmHg, respectively. Results: Normal BP, relative hypertension and systemic hypertension were observed in 56 (54%), 43(42%) and 4 (4%) of SCA patients, respectively. In multivariate analysis, factors associated with relative hypertension were leg ulcer (aOR 2.05; 95%CI 1.77 -
Apolipoprotein B Is a Good Tool for Screening Dyslipidaemia in Apparently Healthy Population  [PDF]
L. V. Athiththan, M. F. F. Nusha, U. P. K. Hettiaratchi, P. P. R. Perera
Journal of Biosciences and Medicines (JBM) , 2016, DOI: 10.4236/jbm.2016.45006
Abstract: Dyslipidaemia is the major risk factor for cardiovascular disease (CVD) which is the leading cause of death in the world. Even though several lipid parameters are used, currently apolipoprotein B (apoB) is considered as the best predictor of CVD. Thus this study was carried out to find out the association between conventional lipid parameters and apoB in apparently healthy subjects. A descriptive cross-sectional study was carried out in 170 apparently healthy volunteers who were not diagnosed with dyslipidaemia. After 12 hours overnight fast venous blood was obtained and Total cholesterol (TC), Triglyceride (TG), High density lipoprotein cholesterol (HDL-C) were measured by enzymatic kit method. Low density lipoprotein cholesterol (LDL-C) was calculated by Friedewald formula and apoB was analyzed by immune turbid metry using a Konelab® auto analyzer. Among the participants, majority (63.5%) were females. The mean value of apoB concentration of the population was 103 ± 42 mg/dL which was similar and not significantly different between the genders (Males, 102 ± 37 mg/dL and Females, 104 ± 45 mg/dL). All lipid parameters showed a positive correlation with apoB concentration whereas HDL-C had a negative correlation (r = -0.165). HDL-C significantly (p < 0.05) decreased with increase in apoB concentration while LDL-C, TC/HDL-C and non-HDL-C significantly (p < 0.05) increased with an increase in apoB concentration. Present study suggests that serum apoB has better correlations and associations with the parameters that are used in conventional lipid profile and with markers recommended for diagnosing dyslipidaemia. Hence apoB could be used as a single marker for screening dyslipidaemia in apparently healthy people.
Abscess in Primary Tuberculosis of Breast: Case Report  [PDF]
M. B. Quilles, P. A. M. Balbo, M. F. Benez, L. P. Nicolellis, R. N. W. Barbosa, F. P. C. Siqueira, l. T. M. Zutin
Journal of Tuberculosis Research (JTR) , 2017, DOI: 10.4236/jtr.2017.53018
Abstract: Purpose: To highlight the diagnostic challenges of breast tuberculosis. Mammary tuberculosis is a rare disease. Its clinical and radiological characteristics are similar to other breast diseases in young women, such as granulomatous mastitis and breast carcinoma. Materials and Methods: We report a case of primary tuberculosis of a 34 years old woman who presented bilateral abscess with refractory secretion of blood and pus drainage to previous treatment with conventional antibiotic therapy of granulomatous mastitis. Results: A tuberculous mammary was observed and confirmed in the case. The diagnosis was based on imaging tests and complementary tests. Anti-tuberculosis treatment was prescribed during 6 months, and the evolution was favorable for one patient. Conclusion: Tuberculosis continued to present diagnostic difficulties, particularly in its breast tuberculosis form.
Evaluation of titanium dental implants after early failure of osseointegration by means of X-ray photoelectron spectoscopy, electron microscopy and histological studies  [PDF]
P. Lázaro, M. Herrero, F. J. Gil
Journal of Biomedical Science and Engineering (JBiSE) , 2010, DOI: 10.4236/jbise.2010.311139
Abstract: In this work, we analysed 56 clinically failed and retrieved implants by means of scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and histological studies. The surface contamination was compared to that of unused control implants and with that of the same implants after cleaning in a basic medium. The surfaces of the unused implants presented considerable contamination. In particular, high levels of carbon were detected. The nature of this C was elucidated by XPS analysis of the lubricant used in the machining process. The same contamination was observed in the retrieved implants. Histological studies were carried out by means of light microscopy. Fibrosis and granulomatous lesions were detected in the tissues. XPS analysis indicated the presence of traces of other elements (Na, Ca, Zn, S, F, etc.) that were not related to impurities in cpTi. We examined a cleaning process in a basic medium that eliminates the organic components of the implant surfaces. The cleaned implants were implanted in the patients and the results were excellent. None of the implants failed in following 7 months.
Nonlinear Spinor Field Equations in Gravitational Theory: Spherical Symmetric Soliton-Like Solutions  [PDF]
V. Adanhounme, A. Adomou, M. N. Hounkonnou, F. P. Codo
Journal of Modern Physics (JMP) , 2012, DOI: 10.4236/jmp.2012.39122
Abstract: This paper deals with an extension of a previous work [Gravitation & Cosmology, Vol. 4, 1998, pp 107-113] to exact spherical symmetric solutions to the spinor field equations with nonlinear terms which are arbitrary functions of S=ψψ, taking into account their own gravitational field. Equations with power and polynomial nonlinearities are studied in detail. It is shown that the initial set of the Einstein and spinor field equations with a power nonlinearity has regular solutions with spinor field localized energy and charge densities. The total energy and charge are finite. Besides, exact solutions, including soliton-like solutions, to the spinor field equations are also obtained in flat space-time.
A Density Functional Theory Study of Methoxy and Atomic Hydrogen Chemisorption on Au(100) Surface  [PDF]
M. N’dollo, P. S. Moussounda, T. Dintzer, F. Garin
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.43A057
Abstract:
The adsorption of CH3O and H on the (100) facet of gold was studied using self-consistent periodic density functional theory (DFT-GGA) calculations. The best binding site, energy, and structural parameter, as well as the local density of states, of each species were determined. CH3O is predicted to strongly adsorb on the bridge and hollow sites, with the bridge site as preferred one, with one of the hydrogen atoms pointing toward a fourfold vacancy (bridge-H hollow). The top site was found to be unstable, the CH3O radical moving to the bridge –H top site during geometry optimization. Adsorption of H is unstable on the hollow site, the atom moving to the bridge site during geometry optimization. The 4-layer slab is predicted to be endothermic with respect to gaseous H2 and a clean Au surface.
Hair Anomalies in a 6-Year-Old Girl  [PDF]
M. Wruhs, C. Bergthaler, F. Breier, A. Steiner, P. Sator
Case Reports in Clinical Medicine (CRCM) , 2016, DOI: 10.4236/crcm.2016.53015
Abstract: Monilehtrix is a rare inherited hair shaft disorder with considerable variations in age of onset severity and course. We present a 6-year-old girl with monilethrix and discuss different aspects of the disease and its treatment.
Fecal nitrogen and dietary quality relationships in Fallow deer
F. Sacconi,M. P. Ponzetta,F. Cervasio
Italian Journal of Animal Science , 2010, DOI: 10.4081/ijas.2007.1s.862
Abstract: Fecal nitrogen of free ranging and captive herbivores is correlated with dietary nitrogen, as well as other dietary chemical characteristics. Besides, only few experimental studies examined in depth the precision of these relationships. This study investigates the correlation between fecal and dietary nitrogen in fallow deer (Dama dama), using data from 38 feeding trials collected from captive subjects. Significant linear regressions were found for all the dietary and fecal chemical components, but only nitrogen showed a noteworthy result (R2=0.76), very similar to the results obtained by several authors in other deer species (Robbins, 1993). Use of fecal nitrogen however, has been criticised because plant secondary compounds, such as tannin, may artificially inflate levels of fecal nitrogen; moreover, the binding effect of tannin is strongly reduced in mixed diets. After all, fecal nitrogen confirms its usefulness in studies about feeding strategies of free living ruminants.
Charged Gravastar in a Dark Energy Universe  [PDF]
C. F. C. Brandt, R. Chan, M. F. A. da Silva, P. Rocha
Journal of Modern Physics (JMP) , 2013, DOI: 10.4236/jmp.2013.46118
Abstract:

Here we constructed a charged gravastar model formed by an interior de Sitter spacetime, a charged dynamical infinitely thin shell with an equation of state and an exterior de Sitter-Reissner-Nordstrom spacetime. We find that the presence of the charge is crucial to the stability of these structures. It can as much favor the stability of a bounded excursion gravastar, and still converting it in a stable gravastar, as make disappear a stable gravastar, depending on the range of the charge considered. There is also formation of black holes and, above certain values, the presence of the charge allows the formation of naked singularity. This is an important example in which a naked singularity emerges as a consequence of unstabilities of a gravastar model, which reinforces that gravastar is not an alternative model to black hole.

Carbon Nanotubes/Metal Nanoparticle Based Nanocomposites: Improvements in Visible Photoluminescence Emission and Hydrophobicity  [PDF]
M. Barberio, P. Barone, F. Stranges, A. Romano, F. Xu, A. Bonanno
Optics and Photonics Journal (OPJ) , 2013, DOI: 10.4236/opj.2013.36A007
Abstract:

In this work, we present a study of growth and characterization of nanocomposites, based on multiwalled carbon nanotubes and metal nanoparticles (Al, Ag, Au, Co, Cu, Fe, Ni and Ti). We observe a very different behavior between noble and transitions metals. All the nanocomposites are characterized by a network of carbon nanotubes with randomly insertion of spherical metal particles with dimensions of about 100 nm (clearly visible in SEM images). In particular, in transition metal nanocomposites, each tube on sheet surface is covered by particles of about 40 - 50 nm and for all metals the XPS measurements indicate the absence of chemical bonds and the simply physisorption of nanoparticle on carbon nanotube buckypaper. Furthermore, the nanocomposites show very different properties respect to pure carbon nanotubes: they are hydrophobic, their roughness is about 50% smaller than carbon nanotube and they exhibit a strong visible photoluminescence, which is absent in pure nanotube.

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