scholarly journals Low Serum Galectin-1 Levels Predict Future Lymphoma Development in HIV-Positive Patients

Blood ◽  
2016 ◽  
Vol 128 (22) ◽  
pp. 2945-2945
Author(s):  
Maja Ludvigsen ◽  
Maja Ølholm Vase ◽  
Rikke Hjortebjerg ◽  
Irma Petruskevicius ◽  
Court Pedersen ◽  
...  
Keyword(s):  
Serum Levels ◽  
Healthy Control Group ◽  
Control Group ◽  
Hiv Diagnosis ◽  
Hiv Patients ◽  
Lower Serum ◽  
Advisory Boards ◽  
Increased Risk ◽  
Healthy Control

Abstract Introduction. HIV infected individuals have an increased risk of developing lymphoma compared to sex- and age matched non-immunocompromised control population and approximately 2% of HIV infected individuals developed lymphoma (Gopal et al, J Natl cancer Inst 2013). Our group has been among the first who identified novel serum protein markers present at time of HIV diagnosis, which were predictive of subsequent lymphoma development (Vase et al, AIDS 2016). Galectins are important regulators of cell adhesion, apoptosis, cell cycle, and mRNA processing. Galectin-1 (Gal-1) is a known lectin-binding protein able to mediate Th2 skewed microenvironment in lymphomas (Juszczynski et al, Proc Natl Acad Sci U S A 2007; Cedeno-Laurent et al, Blood 2012), and facilitates HIV-infection (Sato et al, Ann N Y Acad Sci 2012). Increased serum Gal-1 levels were correlated to increased tumor burden and adverse clinical features in Hodgkin lymphoma (HL) (Kamper et al, Blood 2011; Ouyang et al, Blood 2013) and low Gal-1 levels were associated with an increased risk of chronic graft-versus-host disease in patients with hematologic malignancies treated with non-myeloablative hematopoietic stem cell transplantation (Petruskevicius et al, BMT 2016). In this study, we investigated whether the serum level of Gal-1 at the time of HIV diagnosis was predictive for subsequent lymphoma development. Methods. We determined the serum levels of Gal-1 in serum samples from19 HIV infected patients collected at the time of HIV diagnosis. Measurements were performed using a time-resolved immunofluorometric assay, as previously described (Petruskevicius et al, BMT 2016). Patients were grouped based on clinical outcomes in (i) future HIV-associated lymphoma (HIV/lymphoma), (ii) future HIV-associated benign lymphadenopathy (HIV/adenopathy), and (iii) no future neoplasia (HIV/no neoplasia), Table 1. Furthermore, serum Gal-1 levels were compared to those of a healthy control group (n=30), as previously reported (Petruskevicius et al, BMT 2016). Gal-1 sample concentrations were calculated by regression anaysis on basis of a standard curve of recombinant Gal-1 at concentrations of 100 to 0.78 ng/mL with 1:4 sample dilutions. Gal-1 levels > 400ng/mL was included in the analyses with a value of 400ng/mL. Estimates of differences between groups were evaluated using Student's t-test or ANOVA on log transformed data. A ROC analysis was computed to establish cut-off values for serum galectin-1, with respect to development of lymphoma. Results. Overall, the serum Gal-1 level in the HIV cohort was lower than in the healthy control group (p<0.001), Figure 1A. At HIV diagnosis, those HIV patients who would subsequently develop lymphoma had significantly lower levels of serum Gal-1 compared to the remaining cohort, Figure 1B (p=0.017). There was no gender-related difference (p=0.436) and Gal-1 serum levels did not correlate with either CD4 count (p=0.553) or viral load (p=0.600) at time of HIV diagnosis. In this size-limited study population, it was not possible to show any significant difference between HIV/lymphoma, HIV/adenopathy, and HIV/no neoplasia. ROC calculated cut-off of 2.6 ng/mL was able to separate HIV patients with future lymphoma from the remaining HIV patients and controls with a specificity of 78% and sensitivity of 100%. At this cut-off 13 (31%) patients were allocated to the low Gal-1 group, including all future lymphoma patients. Conclusion. HIV infected patients had significant lower serum Gal-1 levels than compared to a healthy control cohort. All HIV infected patients that later developed lymphoma belonged to the subset with lowest serum Gal-1 levels. If confirmed in independent cohorts of HIV patients from the cART era, this observation will support the use of low serum levels of Gal-1 as an early predictive biomarker for subsequent lymphoma development in HIV infected individuals. This may in turn have potential implications on the clinical monitoring strategy of these patients. Table 1 Characteristics of HIV patients in the serum galectin-1 study *Time before lymphoma or day of follow up (death or study end) Table 1. Characteristics of HIV patients in the serum galectin-1 study. / *Time before lymphoma or day of follow up (death or study end) Figure 1 Serum levels of Gal-1. A: Serum Gal-1 levels in the HIV cohort (n=19) were significant lower than in the healthy control group (n=30). B: At HIV diagnosis, significant lower serum Gal-1 levels was observed in HIV-patients with future lymphoma diagnosis (n=5) compared to the remaining cohort (n=44). Figure 1. Serum levels of Gal-1. A: Serum Gal-1 levels in the HIV cohort (n=19) were significant lower than in the healthy control group (n=30). B: At HIV diagnosis, significant lower serum Gal-1 levels was observed in HIV-patients with future lymphoma diagnosis (n=5) compared to the remaining cohort (n=44). Disclosures d'Amore: Servier: Honoraria, Other: Advisory Boards; CTI LIfe Sciences: Honoraria, Other: Advisory Boards.

scholarly journals Knee Joint Kinematics and Kinetics During Walking and Running After Surgical Achilles Tendon Repair

2018 ◽  
Vol 6 (6) ◽  
pp. 232596711877986 ◽  
Author(s):  
Daniel Jandacka ◽  
Jan Plesek ◽  
Jiri Skypala ◽  
Jaroslav Uchytil ◽  
Julia Freedman Silvernail ◽  
...  
Keyword(s):  
Knee Joint ◽  
Achilles Tendon ◽  
Healthy Control Group ◽  
Control Group ◽  
Barefoot Running ◽  
Increased Risk ◽  
Healthy Control ◽  
Knee Abduction ◽  
Kinetics Of ◽  
Kinematics And Kinetics

Background: Despite the increasing incidence of Achilles tendon (AT) ruptures, there is a lack of information on the possible risks associated with regular running and walking for exercise after an injury. There are some known kinematic gait changes after an AT rupture, especially at the knee. However, it is not clear whether runners with AT ruptures may be at risk for secondary knee injuries during shod or barefoot running/walking. Purpose/Hypothesis: The purpose of this study was to compare the kinematics and kinetics of barefoot walking and barefoot and shod running between athletes with a history of AT ruptures and a healthy control group. We hypothesized that there would be increased knee joint loads in the affected limb of the AT rupture group, especially during shod running. Study Design: Controlled laboratory study. Methods: Ten patients who had undergone surgical treatment of a unilateral acute AT rupture (6.1 ± 3.7 years postoperatively ) and 10 control participants were matched according to age, sex, physical activity, weight, height, and footfall type. The kinematics and kinetics of barefoot walking and barefoot and shod running were recorded using a high-speed motion capture system synchronized with force platforms. Results: The main outcome measures were lower extremity joint angles and moments during the stance phase of walking and running. After AT repair, athletes had increased internal knee abduction moments during shod and barefoot running compared with the healthy control group ( P < .05, η2 > 0.14). There were no significant differences in kinematics and kinetics during walking between the AT rupture and healthy control groups ( P ≥ .05). Conclusion: After an AT rupture, athletes had increased internal knee abduction moments during running compared with the healthy control group. Clinical Relevance: The increased abduction loads on the knee in patients with an AT rupture could lead to further running-related injuries. However, barefoot walking may be used as a proprioceptive exercise without an increased risk of overuse injuries in these patients.

scholarly journals C5n 5 55Detection of Some Immunological Parameters in Psoriatic Iraqi Female Patients

2020 ◽  
pp. 2515-2524
Author(s):  
Rehab Morad Khazem ◽  
Shaima R. Ibraheem
Keyword(s):  
Serum Levels ◽  
Interleukin 10 ◽  
Living Condition ◽  
Healthy Control Group ◽  
Control Group ◽  
Immunological Parameters ◽  
Female Patients ◽  
Healthy Control ◽  
The Mean ◽  
Severity Of The Disease

Psoriasis is a common, chronic, immune-mediated skin disease with systemic pro-inflammatory activation.  This study was designed to estimate the level of two cytokines, Interleukin-36 (IL-36) and Interleukin-10 (IL-10), in psoriasis female patients. The study was accomplished on 50 Iraqi patients with psoriasis who were referred to the consulting clinic at Al-Yarmouk Teaching Hospital during the period from November 2018 to March 2019. These patients were diagnosed under the supervision of dermatologists. For the purpose of comparison, the study included 30 healthy women as a healthy control group. The serum levels of cytokines  were measured using the enzyme-linked immunosorbent technique (ELISA).The results of this study showed that the mean age of the female patients was 35.9 ± 1.85 years, whereas the age of the patients with a severity of higher than 30% ranged 15-25 years. Most of the patients were married, in an average living condition, and non-smokers, and their menstrual cycle was continuous. It was also found that 28% of the psoriatic patients had other chronic diseases. The study showed statistically significant differences (p <0.05) in the mean level of IL-36 between the patients and healthy control group, whereas there was no statistical difference in the mean level of IL-10. In conclusion,   the   decrease in the level of IL-36 in the patients might be related to the increase in the severity of the disease.

scholarly journals Association of Leptin and Adiponectin with Risk and Prognosis of Hepatocellular Carcinoma: A Combination of Traditional, Survival and Dose-response Meta-analysis

2020 ◽  
Author(s):  
Lilong Zhang ◽  
Qihang Yuan ◽  
Man Li ◽  
Dongqi Chai ◽  
Wenhong Deng ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Overall Survival ◽  
Meta Analysis ◽  
Healthy Control Group ◽  
Cochrane Library ◽  
Control Group ◽  
Linear Relationships ◽  
Increased Risk ◽  
Healthy Control ◽  
Carcinoma Risk

Abstract Background: The association between leptin, adiponectin levels and the risk as well as prognosis of hepatocellular carcinoma has been investigated by an increasing number of studies, but the results were controversial.Methods: A meta-analysis was performed to assess the correlation between leptin, adiponectin levels and risk and prognosis of hepatocellular carcinoma (CRD42020195882). Through June 14, 2020, PubMed, Cochrane Library, Embase databases, Clinicaltrials, and Opengrey were searched, including references of qualifying articles. Titles, abstracts, and main texts were reviewed by at least 2 independent readers. Stata 16.0 was used to calculate statistical data.Results: Thirty studies were included in this meta-analysis and results showed that hepatocellular carcinoma group had significantly higher leptin levels than the cancer-free control group (SMD = 1.83, 95% CI (1.09, 2.58), P = 0.000) , the healthy control group (SMD = 4.32, 95% CI (2.41, 6.24), P = 0.000) and the cirrhosis group (SMD = 1.85, 95% CI (0.70, 3.01), P = 0.002). Hepatocellular carcinoma group had significantly higher adiponectin levels than the healthy control group (SMD = 1.57, 95% CI (0.37, 2.76), P = 0.010), but no statistical difference compared with the cancer-free control group (SMD = 0.24, 95% CI (-0.35, 0.82), P = 0.430) and the cirrhosis group (SMD = -0.51, 95% CI (-1.30, 0.29), P= 0.213). The leptin rs7799039 polymorphism was associated with increased risk of hepatocellular carcinoma (G vs A: OR = 1.28, 95% CI (1.10, 1.48), P = 0.002). There were linear relationships between adiponectin levels and the risk of hepatocellular carcinoma (OR = 1.066, 95% CI (1.03, 1.11), P = 0.001). In addition, the results showed that high/positive expression of adiponectin was significantly related to lower overall survival in hepatocellular carcinoma patients (HR = 1.70, 95% CI (1.22, 2.37), P = 0.002); however, there was no significantly association between the leptin levels and overall survival (HR = 0.92, 95% CI (0.53, 1.59), P = 0.766).Conclusion: The study shows that high leptin levels are associated with a higher risk of hepatocellular carcinoma. Adiponectin levels are proportional to hepatocellular carcinoma risk, and are related to the poor prognosis.

Evaluation of serum microRNA expression profile in panic disorder patients

2017 ◽  
Vol 41 (S1) ◽  
pp. S595-S595
Author(s):  
F.P. Çökmüş ◽  
E. Özmen ◽  
T. Alkın ◽  
M.B. Batır ◽  
F.S. Çam
Keyword(s):  
Panic Disorder ◽  
Mirna Expression ◽  
Venous Blood ◽  
Clinical Information ◽  
Serum Levels ◽  
Healthy Control Group ◽  
Control Group ◽  
Receptor Subtypes ◽  
Expression Levels ◽  
Healthy Control

IntroductionEven though it has begun to be investigated in recent years, studies of microRNA (miRNA) in anxiety disorders are limited. Our research is the first miRNA expression study in panic disorder, which excludes of drug use and additional psychiatric disorders.ObjectiveWe aimed to determine the availability of miRNAs as biomarkers in the serum levels of panic disorder and to demonstrate the changing expression of miRNAs.MethodsIn the research, 35 panic disorder patients and 35 healthy controls were administered a socio-demographic and clinical information form, SCID-I, PDSS. 2 tubes of peripheral venous blood were taken from each group for genetic evaluation. miRNA expression analysis was performed in those samples by the RT-PCR method.ResultsCompared with the healthy control group, 8 miRNA expression levels were found different in panic disorder group. Five of them were up-regulated and 3 of them were down-regulated. There was no correlation between the level of miRNA expression and PDSS total score and PDSS sub-items. miR-1297 and miR-4465 expression levels were statistically significant between the two groups. Both miRNAs are also known to arrange the gene regions that affect GABAA receptor subtypes.ConclusionsmiR-1297 and miR-4465 regulate the GABAA gene that is thought to play a role in the etiology of panic disorder (Wong et al., 2014, Wang 2016). In panic disorder group, miR-1297 and miR-4465 expression levels were found to be up-regulated from the healthy control group.Disclosure of interestThe authors have not supplied their declaration of competing interest.

The Long-term Chondroprotective Effect of Meniscal Allograft Transplant: A 10- to 14-Year Follow-up Study

2021 ◽  
pp. 036354652110540
Author(s):  
Ding-yu Wang ◽  
Bo Zhang ◽  
Yan-zhang Li ◽  
Xiang-yu Meng ◽  
Dong Jiang ◽  
...  
Keyword(s):  
T2 Mapping ◽  
Cartilage Degeneration ◽  
Healthy Control Group ◽  
Control Group ◽  
Meniscal Allograft ◽  
Graft Extrusion ◽  
Healthy Control ◽  
Chondroprotective Effect

Background: The long-term chondroprotective effect of meniscal allograft transplant (MAT) and its superiority over meniscectomy have rarely been reported. Hypothesis: MAT would reduce osteoarthritis (OA) progression when compared with the meniscus-deficient knee. Graft extrusion distance would strongly affect the chondroprotective effect of the MAT. Study Design: Cohort study; Level of evidence, 3. Methods: A total of 17 knees receiving MAT were followed up as the MAT group. The MAT group was further divided into the nonextrusion subgroup (n = 9) and the extrusion subgroup (n = 8) according to 3-mm extrusion on the magnetic resonance imaging (MRI) coronal section. A further 26 consecutive patients receiving meniscectomy in the same period were followed up as the ME group. The healthy control group consisted of healthy contralateral legs chosen from the MAT and ME groups (n = 27). Joint space width (JSW) narrowing was measured on radiographs. Three-dimensional MRI with a T2 mapping sequence was used to quantitatively analyze cartilage degeneration and meniscal allograft extrusion in 5 directions (0°, 45°, 90°, 135°, and 180°). The cartilage degeneration index (CDI) was calculated according to the size and degree of the chondral lesions on MRI scans. The correlation between the CDI increase and the extrusion distance was analyzed. Results: The mean follow-up time was 11.3 years (range, 10-14 years). The MAT group had moderate superiority in chondral protection with less JSW narrowing (0.58 ± 0.66 mm) and CDI increase (1132 ± 1589) compared with the ME group (JSW narrowing: 1.26 ± 1.13 mm, P = .025; CDI increase: 2182 ± 1958, P = .079). The JSW narrowing (0.71 ± 0.80 mm; P = .186) and CDI increase (2004 ± 1965; P = .830) of the extrusion subgroup were close to those of the ME group, demonstrating that a 3-mm extrusion led to complete loss of the meniscal chondroprotective effect. The nonextrusion group had significantly less JSW narrowing (0.48 ± 0.48 mm; P = .042) and CDI increase (358 ± 249; P = .011) than the ME group. The JSW narrowing of the healthy control group was 0.22 ± 0.27 mm. The cartilage T2 values of the extrusion subgroup were similar to those of the ME group, with more OA features, whereas the T2 values of the nonextrusion subgroup were closer to those of the healthy control group. The extrusion distance in the 90° direction ( P = .002) and the follow-up time ( P = .019) significantly affected the CDI increase in the multivariate regression model. The average extrusion distance in the 45°, 90°, and 135° directions better predicted chondroprotection compared with the other individual directions. Conclusion: MAT had moderate advantages in chondroprotection compared with meniscectomy in the long term. Graft extrusion distance strongly affected the chondroprotective effect of MAT. The chondroprotective effect of the nonextruded meniscal allograft was close to that of the native meniscus, whereas the allografts with an extrusion >3 mm completely lost their function after meniscectomy.

scholarly journals Nutritional assessment and lipid profile in HIV-infected children and adolescents treated with highly active antiretroviral therapy

2011 ◽  
Vol 44 (3) ◽  
pp. 274-281 ◽  
Author(s):  
Marina Hjertquist Tremeschin ◽  
Daniela Saes Sartorelli ◽  
Maria Célia Cervi ◽  
Bento Vidal de Moura Negrini ◽  
Roberta Garcia Salomão ◽  
...  
Keyword(s):  
Antiretroviral Therapy ◽  
Protease Inhibitor ◽  
Children And Adolescents ◽  
Highly Active Antiretroviral Therapy ◽  
Serum Levels ◽  
Hiv Positive ◽  
Control Group ◽  
Highly Active ◽  
Healthy Control

INTRODUCTION: HIV-infected children and adolescents treated with highly active antiretroviral therapy (HAART) regimens that include a protease inhibitor (PI) can show significant improvements in clinical outcomes, nutritional status and quality of life. The study aimed to report nutritional and metabolic alterations for pediatric patients continuously exposed to HAART and for healthy controls for up to 1 year. METHODS: Clinical, anthropometric, lipid profile and food intake data were collected prospectively over approximately 12-months for each patient. RESULTS: Fifty-one individuals were studied, of these, 16 were healthy. After 12 months follow-up, HIV-positive individuals remained below the healthy control group parameters. No change was observed concerning food intake. Triglyceride serum levels were higher in patients using protease inhibitor at the onset of the study [PI groups: 114 (43 - 336), and 136 (63 - 271) versus control group: 54.5 (20 - 162); p = 0.003], but after twelve months follow-up, only the group using protease inhibitor for up to two months presented higher values [140 (73 - 273) versus 67.5 (33 - 117); p = 0.004]. HDL-cholesterol was lower in HIV-positive individuals [HIV-positive groups: 36 (27 - 58) and 36 (23 - 43); control 49.5 (34 - 69); p = 0.004]. CONCLUSIONS: HIV-infected children and adolescents treated with highly active antiretroviral therapy showed compromised nutritional parameters compared to a paired healthy control group. Individuals using protease inhibitor presented worse triglyceride serum levels compared to their healthy counterparts.

scholarly journals The association of leptin and adiponectin with hepatocellular carcinoma risk and prognosis: a combination of traditional, survival, and dose-response meta-analysis

BMC Cancer ◽  
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Lilong Zhang ◽  
Qihang Yuan ◽  
Man Li ◽  
Dongqi Chai ◽  
Wenhong Deng ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Overall Survival ◽  
Meta Analysis ◽  
Healthy Control Group ◽  
Cochrane Library ◽  
Control Group ◽  
Linear Relationships ◽  
Increased Risk ◽  
Healthy Control ◽  
Carcinoma Risk

Abstract Background An increasing number of studies have focused on the association between leptin, adiponectin levels and the risk as well as the prognosis of hepatocellular carcinoma. However, the reported results are conflicting. Methods A meta-analysis was performed to assess the correlation between leptin, adiponectin levels and risk and prognosis of hepatocellular carcinoma (CRD42020195882). Through June 14, 2020, PubMed, Cochrane Library and EMBASE databases were searched, including references of qualifying articles. Titles, abstracts, and main texts were reviewed by at least 2 independent readers. Stata 16.0 was used to calculate statistical data. Results Thirty studies were included in this meta-analysis and results showed that hepatocellular carcinoma group had significantly higher leptin levels than the cancer-free control group (SMD = 1.83, 95% CI (1.09, 2.58), P = 0.000), the healthy control group (SMD = 4.32, 95% CI (2.41, 6.24), P = 0.000) and the cirrhosis group (SMD = 1.85, 95% CI (0.70, 3.01), P = 0.002). Hepatocellular carcinoma group had significantly higher adiponectin levels than the healthy control group (SMD = 1.57, 95% CI (0.37, 2.76), P = 0.010), but no statistical difference compared with the cancer-free control group (SMD = 0.24, 95% CI (− 0.35, 0.82), P = 0.430) and the cirrhosis group (SMD = − 0.51, 95% CI (− 1.30, 0.29), P = 0.213). The leptin rs7799039 polymorphism was associated with increased risk of hepatocellular carcinoma (G vs A: OR = 1.28, 95% CI (1.10, 1.48), P = 0.002). There were linear relationships between adiponectin levels and the risk of hepatocellular carcinoma (OR = 1.066, 95% CI (1.03, 1.11), P = 0.001). In addition, the results showed that high/positive expression of adiponectin was significantly related to lower overall survival in hepatocellular carcinoma patients (HR = 1.70, 95% CI (1.22, 2.37), P = 0.002); however, there was no significantly association between the leptin levels and overall survival (HR = 0.92, 95% CI (0.53, 1.59), P = 0.766). Conclusion The study shows that high leptin levels were associated with a higher risk of hepatocellular carcinoma. Adiponectin levels were proportional to hepatocellular carcinoma risk, and were related to the poor prognosis.

HOW “MILD” IS MILD TRAUMATIC BRAIN INJURY (MTBI)? A PROSPECTIVE STUDY WITH ONE-YEAR FOLLOW-UP ON SYMPTOMATOLOGY, COGNITION, DISABILITY AND LIFE SATISFACTION AFTER HEAD INJURY.

2021 ◽  
pp. 1-5
Author(s):  
Abhishek Chaturbedi
Keyword(s):  
Life Satisfaction ◽  
Healthy Control Group ◽  
Acute Injury ◽  
Control Group ◽  
Study Group ◽  
Post Injury ◽  
Healthy Control ◽  
One Year ◽  
A Prospective Study

Objective: To determine cognitive functions, symptoms, disabilities and life satisfaction of patients with rst time concussed patients during acute injury and subsequent follow-up visits (3, 6 and 12 months). Materials and Methods: One hundred patients with single mTBI answered questionnaires about symptoms, disabilities (RHFUQ) and life satisfaction (LiSat-11) apart from neuropsychological evaluation at each subsequent follow-up (F/U) visits. Fifty healthy control subjects also underwent same tests for comparison with study group (mTBI patients). Results: At1year post-injury: 21% had persistent post-concussion symptoms (PCS), with statistically signicant difference between the number of symptoms at 1 year F/U visit for study group (4.8 ± 1.8) and the healthy control group (1.3 ± 0.8), (p= 0.03). The total RHFUQ score (13.0 ± 8.8) was statistically signicant compared to the control group (3.2 ± 2.3), (p <0.001). The number of disability items in the study group (5.4 ± 2.8) was also signicant compared with the healthy control group (1.1± 0.6) with p <0.001. The study group exhibited statistically signicant (p=0.01) lower level of life satisfaction (40.8 ± 9.5) compared with the control group (56.7 ± 11.5). In the study group, the number of cognitive tests with outcomes below cut-off limits (± 2SD) was statistically signicant compared with control group. Conclusion: The high frequency of persistent PCS, disabilities along with lower level of life satisfaction and decline in cognitive function appears to characterize single mTBI patients in our study at 1 year post-injury. This highlights the need to carefully evaluate a single mTBI for long-term implications.

Study on the oxidative stress status among cement plant workers

2008 ◽  
Vol 27 (6) ◽  
pp. 463-469 ◽  
Author(s):  
S Pournourmohammadi ◽  
P Khazaeli ◽  
S Eslamizad ◽  
A Tajvar ◽  
A Mohammadirad ◽  
...  
Keyword(s):  
Chronic Disease ◽  
Serum Level ◽  
Serum Levels ◽  
Cement Industry ◽  
Healthy Control Group ◽  
Control Group ◽  
Exposure Group ◽  
Exposed Workers ◽  
Indirect Exposure ◽  
Healthy Control

The cement industry is considered as a major pollution problem because of dust and particulate matter emitted at various steps of cement production. In the present study, volunteer male workers from a cement factory were studied for oxidative and nitrosative stress biomarkers in relation to their serum levels of aluminum (Al) and chromium (Cr). The subjects were divided into two groups of direct and indirect exposure. Subject who worked in production steps were considered as direct exposure group, and those who worked in administration building were considered as indirect exposure group. For comparison, healthy subjects at the same age and socioeconomic status were tested as a control group. Serum levels of lipid peroxidation (LP), total antioxidant capacity (TAC), total thiol molecules (TTM), and nitric oxide (NO) as well as Al and Cr were measured. The results indicated a significant increase in Al ( P = 0.001) and Cr ( P = 0.009) levels in direct-exposed workers in comparison to healthy control group. Further, a significant increase in Al ( P = 0.002) and Cr ( P = 0.009) levels was observed in direct-exposed workers as compared to indirect-exposed one. Serum levels of TTM and TAC were significantly lower in both direct- and indirect-exposed groups in comparison to healthy control group ( P = 0.00). Serum TTM and TAC were significantly lower in direct-exposed workers as compared to indirect-exposed ones ( P = 0.00 and P = 0.024, respectively). There was no significant difference on the level of LP and NO among groups. A correlation was found between serum level of Cr, TAC, and platelets between direct- and indirect-exposed groups ( P < 0.05). Further correlation was found among serum level of Cr and those of TTM, platelets, and chronic disease ( P < 0.05). Chronic disease had a significant influence adjusted to other predictor variables on the post-shift values of Al ( P < 0.05). Although plasma levels of Al and Cr were found in normal ranges, analyses confirm their role in impairment of TMM and TAC.

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