scholarly journals Non-specific biological markers as a screening test for diagnostic of extrapulmonary tuberculosis

2012 ◽  
Vol 64 (2) ◽  
pp. 489-495 ◽  
Author(s):  
G. Stevanovic ◽  
M. Pelemis ◽  
S. Pelemis ◽  
M. Pavlovic
Keyword(s):  
Adenosine Deaminase ◽  
Immunoglobulin G ◽  
Clinical Investigation ◽  
Extrapulmonary Tuberculosis ◽  
Unknown Origin ◽  
High Sensitivity ◽  
Serum Levels ◽  
Serum Concentrations ◽  
Extra Pulmonary Tuberculosis ◽  
Antituberculosis Therapy

Serum concentrations of adenosine deaminase were determined in 223 febrile patients. In 62, we discovered extrapulmonary tuberculosis. Serum levels of immunoglobulin G were monitored in 287 febrile patients, and 68 had extra-pulmonary tuberculosis. Serum concentrations of adenosine deaminase were significantly higher in patients with tuberculosis compared to other patients with fever of unknown origin. Serum concentrations declined during antituberculosis therapy. A correlation with the localization of infection was not found. Levels of immunoglobulin G were higher in patients with tuberculosis. Both tests had high sensitivity and specificity and could therefore be used for screening extrapulmonary tuberculosis; however, they can only be interpreted adequately following a full clinical investigation.

Changes in growth rate and thyroid- and sex-hormones blood levels in rats under sub-chronic lithium treatment

2006 ◽  
Vol 25 (5) ◽  
pp. 243-250 ◽  
Author(s):  
M S Allagui ◽  
N Hfaiedh ◽  
C Vincent ◽  
F Guermazi ◽  
J-C Murat ◽  
...  
Keyword(s):  
Growth Rate ◽  
Lithium Treatment ◽  
Lithium Carbonate ◽  
Serum Levels ◽  
Antagonistic Effect ◽  
Blood Levels ◽  
Vaginal Mucosa ◽  
Dependent Manner ◽  
Serum Concentrations ◽  
Dose Dependent

Lithium therapy, mainly used in curing some psychiatric diseases, is responsible for numerous undesirable side effects. The present study is a contribution to the understanding of the pathophysiological mechanisms underlying lithium toxicity. Male and female mature rats were divided into three batches and fed commercial pellets: one batch was the control and the second and third batches were given 2 g (Li1) and 4 g (Li2) of lithium carbonate/kg of food/day, respectively. After 7, 14, 21 and 28 days, serum levels of free tri-iodothyronine (FT3), thyroxine (FT4), testosterone and estradiol were measured. Attention was also paid to growth rate and a histological examination of testes or vaginal mucosa was carried out. In treated rats, a dose-dependent loss of appetite and a decrease in growth rate were observed, together with symptoms of polydypsia, polyuria and diarrhea. Lithium serum concentrations increased from 0.44 mM (day 7) to 1.34 mM (day 28) in Li1 rats and from 0.66 to 1.45 mM (day 14) in Li2 rats. Li2 treatment induced a high mortality after 14 days, reaching 50-60% in female and male animals. From these data, the LD50 (14 days Li2 chronic treatment) was calculated to be about 0.3 g/day per kilogram of animal, leading to Li serum concentrations of about 1.4 mM. A significant decrease of FT3 and FT4 was observed in treated rats. This effect appeared immediately for the highest dose and was more pronounced for FT3, resulting in an increase of the FT4/FT3 ratio. In males, testosterone decreased and spermatogenesis was stopped. Conversely, in females, estradiol increased in a dose-dependent manner as the animals were blocked in the diestrus phase at day 28. This finding supports a possible antagonistic effect of lithium on the estradiol receptors.

Dietary and serum vitamin D and preeclampsia risk in Chinese pregnant women: a matched case–control study

2021 ◽  
pp. 1-26
Author(s):  
Xue-min Huang ◽  
Yan-hua Liu ◽  
Han Zhang ◽  
Yuan Cao ◽  
Wei-feng Dou ◽  
...  
Keyword(s):  
Vitamin D ◽  
Dietary Intake ◽  
Pregnant Women ◽  
Case Control Study ◽  
Serum Levels ◽  
Case Control ◽  
Serum Concentrations ◽  
Matched Case ◽  
Matched Case Control Study ◽  
Control Study

Abstract The effect of vitamin D (VD) on the risk of preeclampsia (PE) is uncertain. Few of previous studies focused on the relationship between dietary VD intake and PE risk. Therefore, we conducted this 1:1 matched case-control study to explore the association of dietary VD intake and serum VD concentrations with PE risk in Chinese pregnant women. A total of 440 pairs of participants were recruited during March 2016 to June 2019. Dietary information was obtained using a 78-item semi-quantitative food frequency questionnaire. Serum concentrations of 25(OH)D2 and 25(OH)D3 were measured by liquid chromatography–tandem mass spectrometry. Multivariate conditional logistic regression was used to estimate odds ratios (ORs) and 95% confidence intervals (CIs). Restricted cubic splines (RCS) were plotted to evaluate the dose-response relationship of dietary VD intake and serum VD concentrations with PE risk. Compared with the lowest quartile, the ORs of the highest quartile were 0.45 (95%CI: 0.29-0.71, Ptrend = 0.001) for VD dietary intake and 0.26 (95%CI: 0.11-0.60, Ptrend = 0.003) for serum levels after adjusting for confounders. In addition, the RCS analysis suggested a reverse J-shaped relationship between dietary VD intake and PE risk (P-nonlinearity = 0.02). A similar association was also found between serum concentrations of total 25(OH)D and PE risk (P-nonlinearity = 0.02). In conclusion, this study provides evidence that higher dietary intake and serum levels of VD are associated with the lower risk of PE in Chinese pregnant women.

scholarly journals The Effect of Bilateral Nephrectomy on Renalase and Catecholamines in Hemodialysis Patients

2021 ◽  
Vol 18 (12) ◽  
pp. 6282
Author(s):  
Magda Wiśniewska ◽  
Natalia Serwin ◽  
Violetta Dziedziejko ◽  
Małgorzata Marchelek-Myśliwiec ◽  
Barbara Dołęgowska ◽  
...  
Keyword(s):  
Healthy Subjects ◽  
Plasma Concentrations ◽  
Serum Levels ◽  
Hemodialysis Patients ◽  
Pressure Regulation ◽  
Serum Concentrations ◽  
Monoamine Oxidase Activity ◽  
Normal Kidney ◽  
Bilateral Nephrectomy ◽  
Arterial Blood

Background/Aims: Renalase is an enzyme with monoamine oxidase activity that metabolizes catecholamines; therefore, it has a significant influence on arterial blood pressure regulation and the development of cardiovascular diseases. Renalase is mainly produced in the kidneys. Nephrectomy and hemodialysis (HD) may alter the production and metabolism of renalase. The aim of this study was to examine the effect of bilateral nephrectomy on renalase levels in the serum and erythrocytes of hemodialysis patients. Methods: This study included 27 hemodialysis patients post-bilateral nephrectomy, 46 hemodialysis patients without nephrectomy but with chronic kidney disease and anuria and 30 healthy subjects with normal kidney function. Renalase levels in the serum and erythrocytes were measured using an ELISA kit. Results: Serum concentrations of renalase were significantly higher in post-bilateral nephrectomy patients when compared with those of control subjects (101.1 ± 65.5 vs. 19.6 ± 5.0; p < 0.01). Additionally, renalase concentrations, calculated per gram of hemoglobin, were significantly higher in patients after bilateral nephrectomy in comparison with those of healthy subjects (994.9 ± 345.5 vs. 697.6 ± 273.4, p = 0.015). There were no statistically significant differences in plasma concentrations of noradrenaline or adrenaline. In contrast, the concentration of dopamine was significantly lower in post-nephrectomy patients when compared with those of healthy subjects (116.8 ± 147.7 vs. 440.9 ± 343.2, p < 0.01). Conclusions: Increased serum levels of renalase in post-bilateral nephrectomy hemodialysis patients are likely related to production in extra-renal organs as a result of changes in the cardiovascular system and hypertension.

scholarly journals Association of Serum Levels of Zinc, Copper, and Iron with Risk of Metabolic Syndrome

Nutrients ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 548
Author(s):  
Chia-Wen Lu ◽  
Yi-Chen Lee ◽  
Chia-Sheng Kuo ◽  
Chien-Hsieh Chiang ◽  
Hao-Hsiang Chang ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Metabolic Syndrome ◽  
Linear Models ◽  
Serum Zinc ◽  
Serum Levels ◽  
Least Square ◽  
Model Assessment ◽  
Serum Concentrations ◽  
Metabolic Factors ◽  
Homeostatic Model Assessment

The association between serum concentrations of zinc, copper, or iron and the risk of metabolic syndrome are inconclusive. Therefore, we conduct a case-control study to explore the relationship between serum levels of zinc, copper, or iron and metabolic syndrome as well as each metabolic factor and insulin resistance. We enrolled 1165 adults, aged ≥ 40 (65.8 ± 10) years in a hospital-based population to compare the serum levels of zinc, copper, and iron between subjects with and without metabolic syndrome by using multivariate logistic regression analyses. The least square means were computed by general linear models to compare serum concentrations of zinc, copper, and iron in relation to the number of metabolic factors. The mean serum concentrations of zinc, copper, and iron were 941.91 ± 333.63 μg/L, 1043.45 ± 306.36 μg/L, and 1246.83 ± 538.13 μg/L, respectively. The odds ratios (ORs) of metabolic syndrome for the highest versus the lowest quartile were 5.83 (95% CI: 3.35–10.12; p for trend < 0.001) for zinc, 2.02 (95% CI: 1.25–3.25; p for trend: 0.013) for copper, and 2.11 (95% CI: 1.24–3.62; p for trend: 0.021) for iron after adjusting for age, sex, personal habits, body mass index, and homeostatic model assessment insulin resistance. Additionally, the serum zinc, copper, and iron concentrations increased as the number of metabolic factors rose (p for trend < 0.001). This was the first study to clearly demonstrate that higher serum levels of zinc, copper, and iron were associated with the risk of metabolic syndrome and the number of metabolic factors independent of BMI and insulin resistance.

Effect of Long-Acting Thyroid Stimulator on Serum Concentration of Luteinizing Hormone in the Rat

1975 ◽  
Vol 48 (3) ◽  
pp. 231-233
Author(s):  
P. Dandona ◽  
D. J. El Kabir ◽  
F. Naftolin ◽  
P. C. B. MacKinnon
Keyword(s):  
Luteinizing Hormone ◽  
Serum Concentration ◽  
Pituitary Gland ◽  
Immunoglobulin G ◽  
Adrenocorticotrophic Hormone ◽  
Serum Concentrations ◽  
Serum Luteinizing Hormone ◽  
Serum Lh ◽  
Long Acting ◽  
Dexamethasone Suppression

1. The effect of long-acting thyroid stimulator (LATS) on the serum luteinizing hormone (LH) levels of the rat in pro-oestrus has been studied. 2. The injection of three out of four LATS-containing immunoglobulin G fractions caused an increase in amounts of serum LH. 3. Adrenalectomy and dexamethasone suppression did not alter this response. 4. Injection of large doses of adrenocorticotrophic hormone did not produce any increase in serum concentrations of LH. 5. It is postulated that LATS may have a direct effect on the release of LH from the pituitary gland.

Malignant ovine theileriosis: serum concentrations of some inflammatory components and adenosine deaminase activity

2014 ◽  
Vol 24 (3) ◽  
pp. 639-643 ◽  
Author(s):  
S. M. Razavi ◽  
A. Espandarnia ◽  
E. Rakhshandehroo ◽  
M. Ghane ◽  
S. Nazifi
Keyword(s):  
Adenosine Deaminase ◽  
Serum Concentrations ◽  
Adenosine Deaminase Activity

High serum miR-421 is associated with metabolic dysregulation and inflammation in patients with metabolic syndrome

Epigenomics ◽  
2021 ◽  
Author(s):  
Aécio A Braga ◽  
Raul H Bortolin ◽  
Magda E Graciano-Saldarriaga ◽  
Thiago DC Hirata ◽  
Alvaro Cerda ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Metabolic Syndrome ◽  
High Sensitivity ◽  
Serum Levels ◽  
High Serum ◽  
Reactive Protein ◽  
Metabolic Dysregulation ◽  
Inflammatory Status ◽  
Potential Biomarker ◽  
Screening Study

Aim: To explore the association of circulating miRNAs with adiposity, metabolic status and inflammatory biomarkers in patients with metabolic syndrome (MetS). Patients & methods: Serum levels of 372 miRNAs were measured in patients with (n = 6) and without MetS (n = 6) by quantitative PCR array, and dysregulated miRNAs were validated in a larger cohort (MetS, n = 89; non-MetS, n = 144). Results: In the screening study, seven miRNAs were dysregulated in patients with MetS, and miR-421 remained increased in the validation study. miR-421 was associated with a high risk of MetS and insulin resistance and hypertension and correlated with glycated hemoglobin, triacylglycerols, high-sensitivity C-reactive protein, IL-6, resistin and adiponectin (p < 0.05). Conclusion: Circulating miR-421 is a potential biomarker for insulin resistance, metabolic dysregulation and inflammatory status in patients with MetS.

Serum Levels of High-Sensitivity Troponin T: A Novel Marker for Cardiac Remodeling in Hypertrophic Cardiomyopathy

2010 ◽  
Vol 16 (12) ◽  
pp. 950-956 ◽  
Author(s):  
Victoria Moreno ◽  
Diana Hernández-Romero ◽  
Juan Antonio Vilchez ◽  
Antonio García-Honrubia ◽  
Francisco Cambronero ◽  
...  
Keyword(s):  
Hypertrophic Cardiomyopathy ◽  
Cardiac Remodeling ◽  
Troponin T ◽  
High Sensitivity ◽  
Serum Levels ◽  
High Sensitivity Troponin ◽  
High Sensitivity Troponin T
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