scholarly journals The role of telomerase in the etiology of primary spontaneous pneumothorax

2021 ◽  
Vol 29 (3) ◽  
pp. 377-383
Author(s):  
Mehmet Akif Tezcan ◽  
İbrahim Ethem Özsoy ◽  
Fatih Gürler ◽  
Çiğdem Karakükçü
Keyword(s):  
Spontaneous Pneumothorax ◽  
Telomerase Activity ◽  
Primary Spontaneous Pneumothorax ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Healthy Individuals ◽  
Genetic Studies ◽  
Thoracic Computed Tomography ◽  
The Mean

Background: This study aims to investigate the role of telomerase activity in the risk of primary spontaneous pneumothorax, which is most frequently encountered in the practice of thoracic surgery. Methods: A total of 61 patients (56 males, 5 females; median age: 29.4 years; range, 17 to 43 years) who underwent treatment for primary spontaneous pneumothorax and 19 age- and sex-matched healthy controls (10 males, 9 females; median age: 29.1 years; range, 23 to 43 years) were included in this prospective study between January 2018 - August 2018. Telomerase activity was evaluated with enzyme-linked immunosorbent assay. The correlation between telomerase activity and clinical and demographic parameters was examined. Results: The mean serum telomerase level was 3.4±0.6 ng/mL in the primary spontaneous pneumothorax group and 1.9±0.5 ng/mL in the control group, indicating significantly higher levels in the patient group (p<0.001). There was no significant association between the telomerase levels and presence of blebs and/or bullae on thoracic computed tomography, extent of pneumothorax, laterality (right, left, or bilateral), and pack years of cigarette smoking. Conclusion: Telomerase levels of patients with primary spontaneous pneumothorax are significantly higher than healthy individuals. Future genetic studies may ultimately clarify a potential relationship between primary spontaneous pneumothorax and short telomere syndrome.

Concentrations of Neopterin and Interleukin-10 in Peritoneal Fluid and in Serum of Women with Endometriosis

Pteridines ◽  
2004 ◽  
Vol 15 (1) ◽  
pp. 20-27 ◽  
Author(s):  
Zdzislawa Kondera-Anasz ◽  
Justyna Sikora ◽  
Anna Mertas ◽  
Piotr Miciñski ◽  
Bartlomiej Bednarz
Keyword(s):  
Growth Factors ◽  
Peritoneal Fluid ◽  
Interleukin 10 ◽  
Peritoneal Macrophages ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Serum Concentrations ◽  
Macrophage Activity ◽  
The Mean

Abstract Endometriosis is a gynaecological disorder characterized by increased number and activation of peritoneal macrophages and release of macrophage-derived cytokines and growth factors. The aim of our work was t(5 study the level of neopterin and interleukin (TL)-10 in peritoneal fluid and serum of women with endometriosis in relation to stage of disease. Concentrations of neopterin and IL-10 were measured by enzyme linked immunosorbent assay in PF and serum of 58 women; 43 with endometriosis and 15 without endometriosis. In our study present of neopterin in PF of women with endometriosis whereas neopterin could not be detected in the control group. Neopterin serum concentrations were significantly higher in affected women compared with control. Significantly increased neopterin concentrations were observed in peritoneal fluid and serum of women with advanced endometriosis. The mean peritoneal fluid and serum IL-10 concentrations were significantly higher ainong studied women than control. In women with early endometriosis, significantly increased concentration of IL-10 in peritoneal fluid and serum was observed. In conclusions, both increased concentrations of neopterin and IL-10 in the peritoneal fluid and serum suggest an important role of these Compounds in pathogenesis of endometriosis and indicate an enhanced macrophage activity in this disease.

scholarly journals Levels of superoxide dismutase and malondialdehyde in primary spontaneous pneumothorax

2004 ◽  
Vol 13 (3) ◽  
pp. 209-210 ◽  
Author(s):  
Erhan Tabakoglu ◽  
Senturk Ciftci ◽  
Osman Nuri Hatipoglu ◽  
Gündeniz Altıay ◽  
Tuncay Caglar
Keyword(s):  
Oxidative Stress ◽  
Lipid Peroxidation ◽  
Superoxide Dismutase ◽  
Spontaneous Pneumothorax ◽  
Primary Spontaneous Pneumothorax ◽  
Control Group ◽  
Healthy Individuals ◽  
Erythrocyte Superoxide Dismutase ◽  
Plasma Malondialdehyde ◽  
Smoking Attitudes

THE aim of the present study is to determine whether patients with primary spontaneous pneumothorax (PSP) are subject to oxidative stress. For this purpose, we measured the activities of red blood cell superoxide dismutase, which is an antioxidant enzyme, and the level of plasma malondialdehyde, which is one of the lipid peroxidation markers, in a group of patients with PSP. The study was carried out with 16 patients with PSP and 24 healthy individuals. The two groups were similar to each other in terms of sex, age and smoking attitudes. Erythrocyte superoxide dismutase activity was found to be significantly lower in patients with PSP than in the control group (p<0.01). The plasma malondialdehyde levels were significantly high in patients with PSP (p<0.01). Our results suggest that oxidative stress may contribute to the pathogenesis of PSP.

scholarly journals Early Neuromuscular Blockade in Children with Pediatric Acute Respiratory Distress Syndrome

2020 ◽  
Vol 09 (03) ◽  
pp. 201-206
Author(s):  
Surabhi Chandra ◽  
Sahil Goel ◽  
Ritika Dawra
Keyword(s):  
Mechanical Ventilation ◽  
Acute Respiratory Distress Syndrome ◽  
Respiratory Distress Syndrome ◽  
Neuromuscular Blockade ◽  
Distress Syndrome ◽  
Control Group ◽  
Case Group ◽  
The Mean ◽  
Mean Time

AbstractPediatric acute respiratory distress syndrome (PARDS) is a challenging problem with high mortality. Role of neuromuscular blockade in the management of ARDS to date has been controversial, and this study was done to study the role of neuromuscular blockade in children having PARDS and development of associated complications, if any. This was a prospective, case–control study conducted in the pediatric intensive care unit (PICU) of a tertiary care teaching hospital, over a period of 24 months. Patients of age 1 to 18 years who presented with or developed PARDS during their course of hospitalization were included after written informed consent was obtained from their parents and/or guardians. Patients with PARDS requiring invasive mechanical ventilation were partitioned into a case group and a control group. Case group patients were sedated and paralyzed using midazolam (1 µg/kg/min) and vecuronium (1 µg/kg/min), respectively, along with institution of definitive management. Control group patients were given definitive and supportive therapy, but no neuromuscular blocking agents (NMBAs). All patients were followed up for signs and symptoms of myopathy or neuropathy during the entire duration of hospital stay and up to 3 months after discharge. During the study period, 613 patients were admitted to the PICU of which 91 patients qualified as having PARDS. Sepsis was the main etiology in 67 of the 91 patients (73.6%) with PARDS. Fifty-nine patients were included in the study, of which 29 patients were included in the case group and 30 patients were included in the control group. Among the 29 case group patients, 25 patients (86.2%) were successfully extubated. Four patients from the case group expired, while 14 out of 30 control group patients (46.7%) expired. Hypotension was present in 26 case group patients (89.6%), of which all showed resolution within 48 hours of definitive treatment. The mean time to resolution of hypotension was 41.6 hours (standard deviation [SD]: 5.759; range: 24–48) for case group patients, significantly lower (p < 0.0001) than the mean time to resolution of 103 hours (SD: 18.995; range: 90–126) for the 10 control group patients with hypotension that survived. Mean oxygenation index (OI) following 48 hours of vecuronium therapy was significantly lower (p < 0.0001; 95% confidence interval: 5.9129–9.9671) than mean OI at admission for case group patients. None of the patients receiving vecuronium exhibited neuromuscular deficit during their hospital stay, at time of discharge, or at follow-up evaluation up to 3 months after discharge. In this study, pediatric cases diagnosed with PARDS and managed with mechanical ventilation and vecuronium therapy had improved mean OI following 48 hours of NMBA therapy and a lower mortality when compared with matched control group patients. Incidence of NMBA-related weakness was not commonly observed in these patients.

scholarly journals Circulating Natural IgM Antibodies against Angiogenin in the Peripheral Blood Sera of Patients with Osteosarcoma as Candidate Biomarkers and Reporters of Tumorigenesis

2010 ◽  
Vol 2 ◽  
pp. BIC.S6040 ◽  
Author(s):  
Yulia A. Savitskaya ◽  
Genaro Rico ◽  
Luis Linares ◽  
Roberto González ◽  
René Téllez ◽  
...  
Keyword(s):  
Early Diagnosis ◽  
Sensitivity And Specificity ◽  
Peripheral Blood ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Healthy Individuals ◽  
Igm Antibodies ◽  
Potential Biomarker ◽  
Increased Risk ◽  
Natural Igm

Background Tumor immunology research has led to the identification of a number of tumor-associated self antigens, suggesting that most tumors trigger an immunogenic response, as is the case in osteosarcoma, where the detection of natural serum IgM antibodies might achieve the diagnosis of osteosarcoma. Natural IgM antibodies to tumor-associated proteins may expand the number of available tumor biomarkers for osteosarcoma and may be used together in a serum profile to enhance test sensitivity and specificity. Natural IgM antibodies can be consistently detected in the peripheral blood sera months to years before the tumor is diagnosed clinically. The study of the level of a potential biomarker many months (or years) prior to diagnosis is fundamentally important. Integrated circulating and imaging markers in clinical practice treating osteosarcoma have potential applications for controlling tumor angiogenesis. Objectives To study the expression of natural IgM antibodies to the tumor antigens of angiogenesis in the peripheral blood sera of osteosarcoma patients and healthy individuals, and to develop serum-based predictive biomarkers. Methods Peripheral venous blood samples were collected from 117 osteosarcoma patients and 117 patients with other tumors. All diagnosis was histologically confirmed. Staging of patients was performed according to the Enneking Surgical Staging System. The control group consisted of 117 age- and sex- matched healthy individuals. In this study, novel immunoconjugates were designed, synthesized and then used to develop a rapid, specific and sensitive enzyme-linked immunosorbent assay (ELISA) method to detect angiogenin (ANG)–IgM directly in the peripheral blood sera of humans. Results Serum ANG–IgM levels are significantly higher in osteosarcoma patients than in healthy individuals ( P < 0.005). Serum ANG–IgM levels varied widely, but were highly dependent on the concentration of IgM (r = 0.85; P < 0.0005). We found ANG–IgM in the sera of 85% of newly diagnosed osteosarcoma patients and ANG–IgM levels were significantly higher in osteosarcoma patients compared to any other tumors ( P < 0.001). Conclusions These results demonstrated that the combined biomarker ANG–IgM has greater sensitivity and specificity in early diagnosis of osteosarcoma patients than the traditional biomarkers (ANG and vascular endothelial growth factor). Circulating ANG–IgM immune complexes can potentially serve as a biomarker for increased risk of osteosarcoma, because relatively high serum levels were also detected in otherwise healthy individuals with a first degree family history of osteosarcoma and in patients with a diagnosis of benign conditions. Immunological aspects of angiogenesis for managing osteosarcoma will have a practical value in early diagnosis, prognosis and monitoring response to antiangiogenic therapy.

scholarly journals Zinc deficiency may play a crucial role in dialysis-associated bacterial infections

2020 ◽  
Vol 11 (1) ◽  
pp. e9-e9
Author(s):  
Zahra Lotfi ◽  
Abbas Ali Zeraati ◽  
Elaheh Dashti ◽  
Tina Zeraati ◽  
Maryam Arghiany ◽  
...  
Keyword(s):  
Zinc Deficiency ◽  
Bacterial Infections ◽  
Critical Role ◽  
Serum Zinc ◽  
Zinc Level ◽  
Healthy Individuals ◽  
Mortality And Morbidity ◽  
Increased Risk ◽  
The Mean

Introduction: Systemic bacterial infections are a common cause of mortality and morbidity in hemodialysis patients. Zinc has a critical role in several immune system functions. Patients who have enough amounts of zinc are able to better face infections caused by various pathogens in comparison to those with zinc insufficiency Objective We sought to assess the role of zinc deficiency in dialysis-associated bacterial infections. Patients and Methods: Eighty-Three adult patients with end-stage renal disease (ESRD) on hemodialysis including 43 patients with bacterial infectious complications and 40 non-infected patients as well as 41 healthy individuals were enrolled. Clinical data, laboratory values including serum zinc level and imaging findings were collected. SPSS was utilized to analyze the data with a significance cutoff set at P < 0.05. Results: Out of 124 participants, 80 (64.51%) were males and 44 (35.49%) were females. The mean age of infected hemodialysis group, non-infected hemodialysis group, and healthy controls were 50.8 ± 16.25, 49.1 ± 18.1, and 56.3 ± 18.2 years, respectively. Catheter site infection (37.3%) and urinary tract infection (30.2%) were the most common infections. The mean serum zinc concentration was significantly lower in the infected patients, compared to non-infected patients and healthy individuals (P < 0.001). Conclusion: The ESRD patients on hemodialysis have lower serum zinc levels which are associated with increased risk of bacterial infection. The role of screening for zinc deficiency and use of supplemental zinc in these patients need to be studied.

scholarly journals Study of the Immunological Status of Iraqi Vitiligo Patients

2016 ◽  
Vol 13 (3) ◽  
pp. 454-462
Author(s):  
Baghdad Science Journal
Keyword(s):  
Potential Role ◽  
Immunoglobulin E ◽  
Ultraviolet B ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Serum ◽  
Healthy Control ◽  
The Mean ◽  
Age Range ◽  
Apparently Healthy

Vitiligo is an acquired idiopathic skin disorder characterized by depigmented macules due to loss of cutaneous melanocytes. A potential role of the immune dysfunction has been suggested in vitiligo, so to test this hypothesis, certain cytokines (IL-17A and TNF-?) and immunoglobulins (IgM, IgG, IgA and total IgE) were investigated in all participants. The study included: 60 patients with age range between (6-55) year; 30(11 males and 19 females) were untreated and 30(12 males and 18 females) were treated with Narrow Band Ultraviolet-B (NB-UVB) and 30 (14 males and 16 females) apparently healthy control. Serum was separated and cytokines (IL-17A and TNF-?) and total immunoglobulin E (IgE) were detected by using Enzyme Linked Immunosorbent Assay (ELISA); while immunoglobulins (IgM, IgG and IgA) were detected by using Single Radial Immunodiffusion (SRID) method. The results showed that the mean levels of serum IL-17A and TNF-? in both untreated and NB-UVB treated vitiligo patients were increased significantly (p ? 0.05) as compared with healthy control. The mean levels of serum IgG and IgA in untreated vitiligo patients showed non significant decreased (P

scholarly journals Urine CA-2 as a biomarker for diagnosis urinary stone and prediction of its complications

2020 ◽  
Author(s):  
Yuan-jing Leng ◽  
Hai-bin Zhou ◽  
Jiang-ling Fu ◽  
Wen-juan Wang
Keyword(s):  
Healthy Subjects ◽  
Characteristic Curve ◽  
Urinary Stone ◽  
Urinary Stones ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Healthy Control ◽  
The Mean ◽  
The Difference ◽  
The Relationship

Abstract PURPOSECarbonic anhydrase-2 (CA-2) plays a role in mineralization and calcification in organism. Strong evidence suggests that CA-2 is associated with urolithiasis. However, the relationship between CA-2 and urinary stone remains unclear. The study aimed to assess the association of urine CA-2 (uCA-2) level and the potential risk of urinary stone.METHODSFrom March 2017 to November 2019, a prospective cohort study was conducted on patients with urinary stones and healthy subjects to determine the pretreatment uCA-2 level detection by Enzyme linked immunosorbent assay (ELISA). The difference of uCA-2 level between patients with urinary stones and healthy subjects was compared. Then comparison between stone patients with complications and without complications was carried out as well as correlation analysis to detect factors associated with biomarker expression.RESULTS118 patients with urinary stones were into urinary stones group and 42 healthy subjects were into healthy control group. The mean pretreatment uCA-2 level was significantly higher in patients with urinary stones group than healthy controls group (P=0.028). Furthermore, The uCA-2 level was positive correlation with urinary stones complications (R=0.379, P=0.000), especially pain complications (R=0.524, P=0.000) and hematuria complications (R=0.374, P=0.000). Receiver operating characteristic curve (ROC) analysis that a uCA-2 level threshold of 10.94 ng/mL had 83.67% sensitivity and 68.12% specificity for predicting urinary stones complications. CONCLUSIONSExcessive uCA-2 excretion is a major risk factor for urinary stone. Our findings suggested that uCA-2 may be used as an unappreciated biomarker for the diagnosis urinary stone in patients and to predict its complications.

scholarly journals Detection of antibodies to recombinant truncated flagellin and sonicated whole cell antigen of Burkholderia pseudomallei in acute melioidosis and in healthy Bangladeshi individuals

2020 ◽  
Vol 14 (1) ◽  
pp. 47-52
Author(s):  
Md Shariful Alam Jilani ◽  
Tang Thean Hock ◽  
Sraboni Mazumder ◽  
Fahmida Rahman ◽  
Md Mohiuddin ◽  
...  
Keyword(s):  
Rural Areas ◽  
Burkholderia Pseudomallei ◽  
Enzyme Linked Immunosorbent Assay ◽  
Igg Antibodies ◽  
Healthy Individuals ◽  
Serum Samples ◽  
Igg Antibody ◽  
Whole Cell ◽  
Cell Antigen ◽  
The Mean

Background and objectives: Several types of Burkholderia pseudomallei antigens have been used to determine the antibody response in acute and asymptomatic cases. In the present study, we have detected immunoglobulin G (IgG) antibody to recombinant truncated flagellin antigen (RTFA) of B. pseudomallei in the sera of acute melioidosis cases and healthy individuals from melioidosis endemic areas of Bangladesh by indirect enzyme-linked immunosorbent assay (ELISA). In parallel, IgG antibody to sonicated whole cell antigen (SWCA) of B. pseudomallei was determined to compare with anti-RTFA antibody. Methodology: Serum samples from culture confirmed melioidosis cases and from healthy individuals aged 21 years and above residing in melioidosis endemic rural areas were included in the study. Serum IgG antibody to RTFA and SWCA of B. pseudomallei was determined by indirect ELISA. Results: Out of 8 culture confirmed acute melioidosis cases, 7 (87.5%) and 8 (100%) were positive for anti-B. pseudomallei IgG antibodies by RTFA and SWCA methods respectively. Among 361 healthy individuals, the rate of seropositivity by RTFA-ELISA was significantly less than that of SWCA-ELISA (16.1% versus 26.8%; p = 0.001). The mean optical density (OD) of RTFA-ELISA of positive cases was significantly less than that of SWCA-ELISA in both melioidosis and healthy individuals (0.79±0.11 versus 2.4±0.08, p = 0.0001; 0.67±0.01 versus 1.27±0.02, p = 0.0001). The sensitivity and specificity of RTFA-ELISA were 88.9% and 100% respectively. Conclusion: Findings of the study suggest that multiple or combination of antigens should be used to study the seroprevalence of B. pseudomallei infection in a community. Also, prospective study is necessary to find out the duration of persistence of antibodies to different antigenic components of B. pseudomallei after exposure. Ibrahim Med. Coll. J. 2020; 14(1): 47-52

scholarly journals Biochemical Study of Gonad Hormones in Sera of Iraqi Patients with Thyroid Disorder

2013 ◽  
Vol 10 (3) ◽  
pp. 907-914
Author(s):  
Baghdad Science Journal
Keyword(s):  
Biochemical Study ◽  
Binding Study ◽  
Control Group ◽  
Thyroid Disorders ◽  
Thyroid Disorder ◽  
Healthy Individuals ◽  
Molecular Binding ◽  
Specialized Center ◽  
The Mean ◽  
Age Range

The objective of this study was to evaluate the alteration in levels of gonado trophins hormones i.e.,Leutizing (LH),Follicular(FSH) in sera of patients with thyroid disorders and molecular binding study of (LH ,FSH) with their antibodies The study was conducted at the specialized center for endocrinology and diabetes from January / 2009 to March / 2010.Two hundreds and twenty three Iraqi subjects, 109 patients with thyroid disorders at age range between (40-50) years and 114 healthy individuals as control group were included in this study.The majority of patients were female with hyperthyroidism and (49.54 % ) were at age range between(40 - 50) years. The levels of hormones(LH,FSH.tri iodothyronine(T3).thyroxine(T4), thyroid stimulating hormoneTSH) were measured by using Enzyme Linked Flourscent Assay( ELFA, while residual studies used Immuno Raido Metric Assay(IRMA) method only.It was found that production of TSH was increased with about (15-20) fold in hyperthyroidism over that in control.Sixty percent of patients with hyperthyroidism were underweight BMI?20.0 (kg/m2) while (44.5%) of patients with hypothyroidism were overweight BMI( 25.0-29.9)kg/m2 . The mean level of LH and FSH had increased significantly (p

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