1
|
Haddad C, Obeid S, Ghanem L, Kazour F, Chok A, Azar J, Hallit S, Tahan F. Association of insomnia with mania in Lebanese patients with bipolar disorder. Encephale 2021; 47:314-318. [PMID: 33541713 DOI: 10.1016/j.encep.2020.09.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 09/17/2020] [Accepted: 09/28/2020] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To assess: (1) the association between insomnia experienced at admission, sociodemographic and other patients' characteristics and mania; and (2) the variation of insomnia and mania before and after treatment in bipolar patients with manic episodes (type I). METHODS Sixty-two patients were interviewed shortly after their admission to the hospital (after 3 to 5 days). The current symptoms experienced by the patients were assessed upon admission and again at discharge from the hospital. RESULTS A poorer quality of sleep (higher PSQI scores) (Beta=0.590) was significantly associated with higher mania, whereas the intake of SSRIs (Beta=-5.952) and TCAs (Beta=-8.181) was significantly associated with lower mania. Furthermore, highly significant reductions were reported in the PSQI scores (4.96 vs. 2.75, P<0.001), ISI scores (8.30 vs. 3.45, P<0.001) and YMRS scores (8.60 vs. 3.06, P<0.001) between admission to and discharge from the hospital. CONCLUSION Insomnia in patients with bipolar disorder type I is associated with mania, with a significant reduction of sleep problems seen during a period of approximately 20 days of hospitalization. Further longitudinal studies are needed to confirm the validity of our results and identify the causes. In the meantime, this research recommends a strategy to improve sleeplessness experienced during inter-episode phases may be helpful in preventing manic episodes in BD.
Collapse
Affiliation(s)
- C Haddad
- Research Department, Psychiatric Hospital of the Cross, Jal Eddib, Lebanon; Inserm, IRD, U1094 Tropical Neuroepidemiology, Institute of Epidemiology and Tropical Neurology, GEIST, centre hospitalier Esquirol, University Limoges, Limoges, France
| | - S Obeid
- Research Department, Psychiatric Hospital of the Cross, Jal Eddib, Lebanon; INSPECT-LB: Institut national de santé publique, épidemiologie clinique et toxicologie-Liban, Beirut, Lebanon; Faculty of Arts and Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon
| | - L Ghanem
- Faculty of Sciences, Lebanese University, Beirut, Lebanon
| | - F Kazour
- Research Department, Psychiatric Hospital of the Cross, Jal Eddib, Lebanon; Faculty of Arts and Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon; Faculty of Medicine, Saint-Joseph University, Beirut, Lebanon; Faculty of Medicine, Lebanese American University, Byblos, Lebanon
| | - A Chok
- Faculty of Sciences, Lebanese University, Beirut, Lebanon
| | - J Azar
- Research Department, Psychiatric Hospital of the Cross, Jal Eddib, Lebanon; INSPECT-LB: Institut national de santé publique, épidemiologie clinique et toxicologie-Liban, Beirut, Lebanon; Faculty of Medicine, Lebanese American University, Byblos, Lebanon
| | - S Hallit
- INSPECT-LB: Institut national de santé publique, épidemiologie clinique et toxicologie-Liban, Beirut, Lebanon; Faculty of Medicine and Medical Sciences, Holy Spirit University of Kaslik (USEK), Jounieh, Lebanon.
| | - F Tahan
- Research Department, Psychiatric Hospital of the Cross, Jal Eddib, Lebanon; Faculty of Sciences, Lebanese University, Beirut, Lebanon.
| |
Collapse
|
2
|
Cansever M, Şahin N, Dursun İ, Geyik C, Düşünsel R, Bektaş Kut F, Tahan F. Successful Slow Desensitization to Tocilizumab in a 15-Year-Old Patient. J Investig Allergol Clin Immunol 2018; 28:436-438. [DOI: 10.18176/jiaci.0314] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
3
|
Tahan F, Eke GH, Bicici E, Saraymen B. Increased Postexercise Lipoxin A4 Levels in Exhaled Breath Condensate in Asthmatic Children With Exercise-Induced Bronchoconstriction. J Investig Allergol Clin Immunol 2016; 26:19-24. [PMID: 27012012 DOI: 10.18176/jiaci.0003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Lipoxins could be potential modulators of inflammation in the lungs. To our knowledge, the role of exhaled breath condensate (EBC) lipoxin A4 (LXA4) in asthmatic children with exercise-induced bronchoconstriction (EIB) has not been investigated. OBJECTIVE The aim of our study was to determine the involvement of EBC LXA4 in EIB. METHODS Forty-five patients aged between 5 and 17 years were included in the study. Patients were divided into 2 groups: asthmatic children with a positive response to exercise (n = 17) and asthmatic children with a negative response to exercise (n = 28). Levels of LXA4 were determined in EBC before and immediately after the exercise challenge using ELISA. RESULTS EBC LXA4 levels were significantly increased immediately after exercise in asthmatic children with a positive response to the exercise challenge (P = .05). No significant differences were observed in children with a negative response to exercise (P > .05). There was an inverse correlation between LXA4 levels and the percent degree of reduction in forced expiratory volume in the first second (FEV1%) postexercise in children with a positive exercise challenge (P = .05, r = -0.50). No significant differences were observed in LXA4 levels between atopic and nonatopic asthmatics (P > .05, Mann-Whitney U test). CONCLUSIONS Levels of EBC LXA4 increased immediately after exercise in asthmatic children with a positive exercise challenge response. We hypothesize that airway LXA4 levels increase to compensate bronchoconstriction and suppress acute inflammation, and that spontaneous bronchodilatation after EIB may be due to LXA4.
Collapse
|
4
|
Tahan F, Akar HH, Saraymen B. Exhaled breath condensate annexin A5 levels in exercise-induced bronchoconstriction in asthma: A preliminary study. Allergol Immunopathol (Madr) 2015; 43:538-42. [PMID: 25796304 DOI: 10.1016/j.aller.2014.10.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 10/19/2014] [Accepted: 10/24/2014] [Indexed: 02/05/2023]
Abstract
BACKGROUND AND OBJECTIVE The pathogenesis of exercise-induced bronchoconstriction (EIB) in asthma is incompletely understood. The role of exhaled breath condensate (EBC) annexin A5, which is an anti-inflammatory mediator, has not been investigated. The purpose of this study is to evaluate EBC annexin A5 levels in EIB in asthmatic children. METHODS Two groups of children were enrolled in this study: asthmatic children with positive (n=11) and negative (n=7) responses to exercise. The levels of pre- and post-exercise EBC annexin A5 were determined with using enzyme-linked immunosorbent assay (ELISA). RESULTS We observed significant higher pre-exercise EBC annexin A5 levels in the challenge test negative children than in the challenge test positive children (p<0.05). No significant difference was observed in the post-exercise EBC annexin A5 levels between the groups (p>0.05). Also, no significant difference was observed between pre- and post-exercise EBC annexin A5 levels within each group (p>0.05). There was an inverse correlation between annexin A5 levels and a reduction in forced expiratory volume at one second percent (FEV1%) (p=0.009, r=-0.598). CONCLUSIONS Our preliminary study showed that EBC annexin A5 may have a possible preventive role in EIB in asthma. Annexin A5 and related compounds may provide novel therapeutic approaches to the treatment of EIB in asthma.
Collapse
Affiliation(s)
- F Tahan
- Erciyes University School of Medicine, Department of Pediatric Allergy and Asthma, Kayseri, Turkey.
| | - H H Akar
- Erciyes University School of Medicine, Department of Pediatric Allergy and Asthma, Kayseri, Turkey
| | - B Saraymen
- Erciyes University School of Medicine, Department of Biochemistry, Kayseri, Turkey
| |
Collapse
|
5
|
Haluk Akar H, Akif Goktas M, Tahan F. Grass pollen triggered anaphylaxis in an adolescent boy. Eur Ann Allergy Clin Immunol 2015; 47:20-21. [PMID: 25599555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Anaphylaxis is a rapid onset serious allergic reaction which may be fatal. It is usually triggered by an agent such as a food, insect sting, or medication, through a mechanism involving immunoglobulin E (IgE) and the high-affinity IgE receptor on mast cells or basophils. Anaphylaxis has been rarely described which results from pollen antigen exposure. Here, we present unusual anaphylaxis, which results from inhaled pollen antigen in a 15-year-old boy.
Collapse
Affiliation(s)
- H Haluk Akar
- Erciyes University School of Medicine, Department of Pediatric Allergy Kayseri, Turkey. E-mail: Phone: + 90 352 207 66 66 / 25 125 Fax: +90 352 437 58 25
| | - M Akif Goktas
- Erciyes University School of Medicine, Department of Pediatrics, Kayseri, Turkey
| | - F Tahan
- Erciyes University School of Medicine, Department of Pediatric Allergy, Kayseri, Turkey
| |
Collapse
|
6
|
Zamakhshary MF, Hassanain M, Farhat GN, Higashi M, Kruzikas D, Basulaiman M, Saeedi MY, Tahan F. Using Innovative Modeling Analytics with Real World Data to Develop a National Breast Cancer Screening Program in the Kingdom of Saudi Arabia. Value Health 2014; 17:A656. [PMID: 27202378 DOI: 10.1016/j.jval.2014.08.2395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
| | - M Hassanain
- Saudi Ministry of Health, Riyadh, Saudi Arabia
| | - G N Farhat
- Saudi Ministry of Health, Riyadh, Saudi Arabia
| | | | | | | | - M Y Saeedi
- Saudi Ministry of Health, Riyadh, Saudi Arabia
| | - F Tahan
- Saudi Ministry of Health, Riyadh, Saudi Arabia
| |
Collapse
|
7
|
Akar HH, Tahan F, Balkanli S, Sadet Özcan S. Prurigo simplex subacuta or prurigo simplex acuta? Eur Ann Allergy Clin Immunol 2014; 46:152-153. [PMID: 25053633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Prurigo is a condition of nodular cutaneous lesions that itch intensely. Prurigo lesions are divided into acute, subacute and chronic forms that itch intensely. Subacute prurigo (SP) clinically presents as excoriated papules mostly in a symmetrical distribution on the extensor surfaces of the extremities, neck, lower trunk, and buttocks. It tends to occur in middle-aged patients, especially in women. Herein, we described prurigo simplex subacuta in a 4-year-old boy. It was histopathologically documented.
Collapse
Affiliation(s)
- H H Akar
- Erciyes University School of Medicine, Pediatric Asthma and Allergy Unit, Kayseri, Turkey. E-mail:
| | - F Tahan
- Erciyes University School of Medicine, Pediatric Asthma and Allergy Unit, Kayseri, Turkey
| | - S Balkanli
- Erciyes University School of Medicine, Department of Pathology, Kayseri, Turkey
| | - S Sadet Özcan
- Erciyes University School of Medicine, Department of Pathology, Kayseri, Turkey
| |
Collapse
|
8
|
Haluk Akar H, Adatepe S, Tahan F, Solmaz I. Hair dyes and temporary tattoos are a real hazard for adolescents? Eur Ann Allergy Clin Immunol 2014; 46:35-37. [PMID: 24702872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Temporary tattoos, especially those that contain black dyes, have become rampant among teenagers in recent years. Most of these tattoos, in addition to hair dyes include paraphenylenediamine (PPD). PPD is a well-known skin sensitizer, which causes allergic contact dermatitis. Allergic contact dermatitis skin lesions from PPD are mostly seen as erythema multiforme-like eruption, a bullous contact dermatitis or as an exudative erythema. Herein, we report on our finding on a 15 year-old adolescent female who had been unaware of being previously sensitized to PPD from a black henna tattoo, and angioedema-like reaction which occurred after her first exposure to hair dye.
Collapse
Affiliation(s)
- H Haluk Akar
- Erciyes University School of Medicine, Department of Pediatric Allergy, Kayseri, Turkey.
| | - S Adatepe
- Intern Doctor, Erciyes University School of Medicine, Kayseri, Turkey
| | - F Tahan
- Erciyes University School of Medicine, Department of Pediatric Allergy, Kayseri, Turkey
| | - I Solmaz
- University School of Medicine, Department of Pediatrics, Kayseri, Turkey
| |
Collapse
|
9
|
Haluk Akar H, Tahan F, Kurt T, Solmaz I. A case of hereditary angioedema who presented with difficulty in urination and globe. Eur Ann Allergy Clin Immunol 2014; 46:60-62. [PMID: 24702880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Hereditary angioedema (HEA) is a disease characterized by decreased levels or function of C1 esterase inhibitor (C1-INH). The symptoms of HEA in pediatric age group generally consist of recurrent episodes of soft tissue swelling. These symptoms can be transient, subtle, and varied in severity. Genitourinary system is rarely affected in this disease. Here, a three-year-old girl who presented with angioedema on her hands, fingers, and face, and had difficulty in urination and globe is reported. The aim of this case is to focus on this rare disease, hereditary angioedema, which presented with difficulty in urination and urinary globe.
Collapse
Affiliation(s)
- H Haluk Akar
- Erciyes University School of Medicine, Department of Pediatric Allergy and Immunology, Kayseri, Turkey.
| | - F Tahan
- Erciyes University School of Medicine, Department of Pediatric Allergy and Immunology, Kayseri, Turkey
| | - T Kurt
- Erciyes University School of Medicine, Department of Pediatrics, Kayseri, Turkey
| | - I Solmaz
- Erciyes University School of Medicine, Department of Pediatrics, Kayseri, Turkey
| |
Collapse
|
10
|
Tahan F, Akar HH, Dursun I, Yilmaz K. Desensitization of darbepoetin-α: a case report. Eur Ann Allergy Clin Immunol 2013; 45:176-177. [PMID: 24129045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2013] [Indexed: 06/02/2023]
Abstract
Human recombinant erythropoietins (EPO) and darbepoetins are widely used for anemias associated with chronic kidney disease. Allergic reactions to erythropoetins and darbepoetins have only occasionally been reported. These skin reactions include pruritus, wheals at the injection site, orofacial anaphylaxis and anjioedema. In this article, we report an 11 year-old female who experienced generalized erithematous skin eruption and desquamation after both erythropoietin and darbepoetin treatments. We successfully used darbepoetin with the support of premedication and desensitization.
Collapse
|
11
|
Orhan F, Canitez Y, Bakirtas A, Yilmaz O, Boz AB, Can D, Kuyucu S, Harmanci K, Tahan F, Reisli I, Karakas T, Baki A, Cokugras H, Cakir M, Yuksel H. Anaphylaxis in Turkish children: a multi-centre, retrospective, case study. Clin Exp Allergy 2011; 41:1767-76. [DOI: 10.1111/j.1365-2222.2011.03859.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2011] [Revised: 07/12/2011] [Accepted: 08/03/2011] [Indexed: 01/02/2023]
Affiliation(s)
- F. Orhan
- Department of Pediatric Allergy; Karadeniz Technical University Faculty of Medicine; Trabzon; Turkey
| | - Y. Canitez
- Department of Pediatric Allergy; Uludag University Faculty of Medicine; Bursa; Turkey
| | - A. Bakirtas
- Department of Pediatric Allergy; Gazi University Faculty of Medicine; Ankara; Turkey
| | - O. Yilmaz
- Department of Pediatric Allergy; Celal Bayar University Faculty of Medicine; Manisa; Turkey
| | - A. B. Boz
- Department of Pediatric Allergy; Akdeniz University Faculty of Medicine; Antalya; Turkey
| | - D. Can
- Department of Pediatric Allergy; Dr Behcet Uz Children's Hospital; Izmir; Turkey
| | - S. Kuyucu
- Department of Pediatric Allergy; Mersin University Faculty of Medicine; Mersin; Turkey
| | - K. Harmanci
- Department of Pediatric Allergy; SSK Ankara Diskapi Hospital; Ankara; Turkey
| | - F. Tahan
- Department of Pediatric Allergy; Erciyes University Faculty of Medicine; Kayseri; Turkey
| | - I. Reisli
- Department of Pediatric Allergy and Immunology; Selcuk University Faculty of Medicine; Konya; Turkey
| | - T. Karakas
- Department of Pediatric Allergy; Karadeniz Technical University Faculty of Medicine; Trabzon; Turkey
| | - A. Baki
- Department of Pediatrics; Karadeniz Technical University Faculty of Medicine; Trabzon; Turkey
| | - H. Cokugras
- Department of Pediatric Allergy; Istanbul University Cerrahpasa Faculty of Medicine; Istanbul; Turkey
| | - M. Cakir
- Department of Pediatrics; Karadeniz Technical University Faculty of Medicine; Trabzon; Turkey
| | - H. Yuksel
- Department of Pediatric Allergy; Celal Bayar University Faculty of Medicine; Manisa; Turkey
| |
Collapse
|
12
|
Sekerel BE, Soyer OU, Keskin O, Uzuner N, Yazicioglu M, Kiliç M, Artaç H, Ozmen S, Can D, Zeyrek D, Cokugras H, Canitez Y, Aydogan M, Kuyucu S, Inal A, Gurkan F, Orhan F, Yilmaz O, Boz AB, Tahan F, Cevit O. The reliability and validity of Turkish version of Childhood Asthma Control Test. Qual Life Res 2011; 21:685-90. [PMID: 21792732 DOI: 10.1007/s11136-011-9970-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2011] [Indexed: 11/28/2022]
Abstract
INTRODUCTION The reliability and validity of Turkish version of Childhood Asthma Control Test (C-ACT). PURPOSE The management of asthma is an important as well as difficult issue of physician's daily practice particularly in busy clinical settings. C-ACT was created to identify asthma control levels in children aged 4-11 years. Our aim was to evaluate the reliability, validity and responsiveness of C-ACT in a Turkish sample of children with asthma. METHOD In this multicenter study, 368 children were enrolled. C-ACT was completed every month by parents and patients who were evaluated in 3 visits within 2 month intervals. At each visit, physicians interpret the control level and decided for the treatment step as established in GINA guidelines. RESULTS The internal consistency reliability of the Turkish version of C-ACT (C-ACT1 to C-ACT5) was found to be 0.82, 0.83, 0.82, 0.82 and 0.80, respectively (reliability statistics, Cronbach's alpha). Test-retest reliability was 0.71. There was significant correlation between C-ACT and physician's assessment of asthma control at visit 1 (r = 0.65, P < 0.001). CONCLUSIONS Turkish version of C-ACT is an accurate and reliable tool to evaluate asthma control in children aged 4-11 years. Its widespread use may facilitate appropriate assessment of asthma control and may lead to decrease the number of uncontrolled patients.
Collapse
Affiliation(s)
- B E Sekerel
- Faculty of Medicine, Pediatric Allergy and Asthma Unit, Hacettepe University, 06100, Ankara, Turkey.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Yilmaz O, Reisli I, Tahan F, Orhan F, Boz A, Yuksel H. Influence of education on primary care physicians' knowledge on childhood allergy as a systemic disease and the atopic march. Allergol Immunopathol (Madr) 2011; 39:73-8. [PMID: 21208716 DOI: 10.1016/j.aller.2010.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Revised: 03/09/2010] [Accepted: 03/21/2010] [Indexed: 10/18/2022]
Abstract
BACKGROUND There are many educational events for physicians in different countries covering one or some of the allergic diseases. Most of these educational events have been reported to improve care by the physicians. The aim of this study was to determine the baseline knowledge of general practitioners (GP) regarding the systemic nature of childhood allergy and atopic march, and to assess the influence of an educational event on this baseline knowledge. METHODS Two hundred and two GPs from five different cities in Turkey who attended education seminars were enrolled. All GPs were received the questionnaire both before and after the seminar. The questionnaire had statements about the systemic nature of childhood allergies and the atopic march, and GPs were asked to mark their degree of agreement as (completely true, partially true, wrong). RESULTS Mean age of GPs was 38.6±6.0 years. Mean duration after graduation from medical faculty was 13.9±6.5 years. There was significant improvement in answers after education. The statement "Frequency of allergic rhinitis and asthma is not as high as expected in children with atopic dermatitis" was regarded "wrong" by 60.9% but increased to 94.3% after the education (p<0.001). Systemic nature of allergy was approved by 72.8%, which increased to 99% after the education (p<0.001). Adrenalin as first line treatment in anaphylaxis treatment was appreciated by a higher number of GPs with the education (p<0.001). CONCLUSION Many GPs lack updated information about the systemic nature of paediatric allergic diseases and a single educational event may improve their knowledge significantly.
Collapse
|
14
|
Sekerel B, Keskin O, Uzuner N, Yazicioglu M, Kilic M, Artac H, Ozmen S, Can D, Zeyrek D, Cokugras H, Soyer O, Sapan N, Aydogan M, Kuyucu S, Inal A, Gurkan F, Orhan F, Yilmaz O, Bingol Boz A, Tahan F, Cevit O. The Utility of Childhood Asthma Control Test and its Relationship with Control Measures and with the Decisions Made by Asthma Specialist. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Omalkhair A, Tahan F, Al Naeem A, Young S, Musaad S, Jazieh A. Results of the first national public breast cancer screening program in the Kingdom of Saudi Arabia. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.1524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
1524 Background: Despite the relatively low incidence in the Kingdom of Saudi Arabia (KSA) compared to Western countries, breast cancer (BC) is the most common cancer among Saudi females for the past 11 consecutive years (National Cancer Registry 1994–2004). The objective of this study is to report the results of the first public national BC screening program in KSA and to evaluate the relationship between imaging and pathological findings and known BC risk factors. Methods: Asymptomatic women 40 years of age or older underwent BC screening at Abdulatif Charitable Cancer Screening Center, Riyadh, KSA. Mammograms were scored using American College of Radiology Breast Imaging Reports and Data System (BIRADS). Correlations between imaging findings and risk factors, as well as pathological findings, were analyzed. Results: A total of 1,215 women were enrolled between September 2007 and April 2008. Median age was 45 years (19–91) and median body mass index (BMI) was 31.6 kg/m2 (16.7–58). A total of 16 cases of cancer were diagnosed (80% are less than stage IIB). No cancer was diagnosed in 942 women with R1/R2 scores and only one case of cancer was diagnosed in 228 women with R0/R3 scores. However, among 26 women with R4/R5 scores, 50% had malignant disease and 35% had benign lesions (odds ratio = 1.96; 95% confidence interval = 1.5, 2.6) (p < 0.0001). No correlation between known risk factors and imaging score or cancer diagnosis. Conclusions: The public acceptance of BC screening program was encouraging. Longitudinal follow-up and inclusion of more participants will help in better determining the risk factors relevant to our patient population. No significant financial relationships to disclose.
Collapse
Affiliation(s)
- A. Omalkhair
- King Abdulaziz Medical City, Riyadh, Saudi Arabia; King Fahad Medical City, Riyadh, Saudi Arabia; Kendell International Inc., Cincinnati, OH
| | - F. Tahan
- King Abdulaziz Medical City, Riyadh, Saudi Arabia; King Fahad Medical City, Riyadh, Saudi Arabia; Kendell International Inc., Cincinnati, OH
| | - A. Al Naeem
- King Abdulaziz Medical City, Riyadh, Saudi Arabia; King Fahad Medical City, Riyadh, Saudi Arabia; Kendell International Inc., Cincinnati, OH
| | - S. Young
- King Abdulaziz Medical City, Riyadh, Saudi Arabia; King Fahad Medical City, Riyadh, Saudi Arabia; Kendell International Inc., Cincinnati, OH
| | - S. Musaad
- King Abdulaziz Medical City, Riyadh, Saudi Arabia; King Fahad Medical City, Riyadh, Saudi Arabia; Kendell International Inc., Cincinnati, OH
| | - A. Jazieh
- King Abdulaziz Medical City, Riyadh, Saudi Arabia; King Fahad Medical City, Riyadh, Saudi Arabia; Kendell International Inc., Cincinnati, OH
| |
Collapse
|
16
|
Tahan F, Jazrawi E, Moodley T, Rovati GE, Adcock IM. Montelukast inhibits tumour necrosis factor-alpha-mediated interleukin-8 expression through inhibition of nuclear factor-kappaB p65-associated histone acetyltransferase activity. Clin Exp Allergy 2008; 38:805-11. [PMID: 18325031 DOI: 10.1111/j.1365-2222.2008.02963.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Montelukast is a potent cysteinyl leukotriene-1 receptor antagonist possessing some anti-inflammatory effects although the molecular mechanism of these anti-inflammatory effects is unknown. In this study, we aimed to investigate the effect of montelukast on nuclear factor (NF)-kappaB-associated histone acetylation activity in phorbol myristate acetate (PMA)-differentiated U937 cells. METHODS We examined the inhibitory effects of montelukast on TNF-alpha-induced IL-8 production in PMA-differentiated U-937 cells. U-937 cells were exposed to PMA (50 ng/mL) for 48 h to allow differentiation to macrophages. Macrophages were then exposed to TNF-alpha (10 ng/mL) in the presence or absence of montelukast (0.01-10 microm) for 24 h. After this time, the concentration of IL-8 in the culture supernatant was measured by sandwich-type ELISA kit. The effect of signalling pathways on TNF-alpha-induced IL-8 release was examined pharmacologically using selective NF-kappaB/IKK2 (AS602868, 3 microm), (PD98059, 10 microm) and p38 mitogen activated protein kinase (MAPK) (SB203580, 1 microm) inhibitors. NF-kappaB DNA binding activity was measured by a DNA-binding ELISA-based assay. NF-kappaB-p65-associated histone acetyltransferase (HAT) activity was measured by immunoprecipitation linked to commercial fluorescent HAT. RESULTS TNF-alpha-induced IL-8 release was suppressed by an NF-kappaB inhibitor but not by MEK or p38 MAPK inhibitors. Montelukast induced a concentration-dependent inhibition of TNF-alpha-induced IL-8 release and mRNA expression that reached a plateau at 0.1 microm without affecting cell viability. Montelukast did not affect NF-kappaB p65 activation as measured by DNA binding but suppressed NF-kappaB p65-associated HAT activity. CONCLUSION Montelukast inhibits TNF-alpha-stimulated IL-8 expression through changes in NF-kappaB p65-associated HAT activity. Drugs targeting these enzymes may enhance the anti-inflammatory actions of montelukast.
Collapse
Affiliation(s)
- F Tahan
- Department of Pediatric Allergy, Erciyes University School of Medicine, Kayseri, Turkey.
| | | | | | | | | |
Collapse
|
17
|
|
18
|
|
19
|
Abstract
Respiratory syncytial virus (RSV) bronchiolitis is the most common lower respiratory tract infection in infancy. To date, there is no effective therapy for RSV bronchiolitis. In order to investigate the efficacy of clarithromycin in the treatment of RSV bronchiolitis, the present authors conducted a randomised, double-blind, placebo-controlled trial comparing clarithromycin with placebo in 21 infants with a diagnosis of RSV bronchiolitis. The infants were randomised to receive clarithromycin or placebo daily for 3 weeks. Levels of interleukin (IL)-4, IL-8, eotaxin, and interferon-gamma were determined in plasma, before and after treatment, using ELISA. Six months after treatment, parents were surveyed as to whether their child had experienced wheezing within the previous 6 months. Treatment with clarithromycin was associated with a statistically significant reduction in the length of hospital stay, the duration of need for supplemental oxygen and the need for beta(2)-agonist treatment. There were significant decreases in plasma IL-4, IL-8 and eotaxin levels after 3 weeks of treatment with clarithromycin. Readmission to the hospital within 6 months after discharge was significantly lower in the clarithromycin group. In conclusion, clarithromycin has statistically significant effects on the clinical and laboratory findings in respiratory syncytial virus bronchiolitis. Therefore, clarithromycin treatment may be helpful in reducing the short-term effects of respiratory syncytial virus bronchiolitis.
Collapse
Affiliation(s)
- F Tahan
- Department of Paediatric Allergy, Erciyes University School of Medicine, Kayseri 38039, Turkey.
| | | | | |
Collapse
|
20
|
Kalayci O, Birben E, Sackesen C, Keskin O, Tahan F, Wechsler ME, Civelek E, Soyer OU, Adalioglu G, Tuncer A, Israel E, Lilly C. ALOX5 promoter genotype, asthma severity and LTC production by eosinophils. Allergy 2006; 61:97-103. [PMID: 16364163 DOI: 10.1111/j.1398-9995.2006.00979.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND The number of Sp1-Egr1 binding tandem repeats at the ALOX5 promoter influences gene transcription and may modify the response to anti-leukotriene treatment. The relationship of ALOX5 variants to asthma severity and leukotriene production by eosinophils is unknown. OBJECTIVE To characterize ALOX5 mRNA expression and cysteinyl-leukotriene production by eosinophils from individuals bearing ALOX5 promoter deletional variants and their association with the severity of childhood asthma. METHODS Eosinophils from adult asthmatics bearing only variant alleles (with other than five tandem repeats on both chromosomes, non5/non5) or no variant alleles (5/5) were cultured in vitro and ALOX5 expression and leukotriene secretion were measured. A total of 621 children with mild or moderate-severe asthma were genotyped at the ALOX5 core promoter. RESULTS Asthmatics with non5/non5 genotype expressed less ALOX5 mRNA and produced less LTC4 into culture supernatants than 5/5 individuals (6.4 +/- 2.0 and 20.0 +/- 5.0 pg/ml, n = 5; P < 0.05). More asthmatic children bearing non5/non5 genotype had moderate-severe asthma than children with the 5/5 genotype (5.3% vs. 1.4%, P = 0.008). Multivariate logistic regression identified ALOX5 promoter genotype as a significant predictor of disease severity (OR = 3.647, 95% CI: 1.146-11.608, P = 0.03). Consistent with these findings, children bearing the non5/non5 genotype had greater bronchomotor response to exercise as measured by the maximum fall after exercise and the area under the exercise curve (P < 0.05 for both). CONCLUSION Our results suggest that children who express the asthma phenotype despite having a genetic variant that impairs their ability to express ALOX5 have more severe disease and thus are more likely to have asthma symptoms.
Collapse
Affiliation(s)
- O Kalayci
- Hacettepe University School of Medicine, Pediatric Allergy and Asthma Unit, Hacettepe, Ankara, Turkey
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
21
|
Saçkesen C, Karaaslan C, Keskin O, Tokol N, Tahan F, Civelek E, Soyer OU, Adalioglu G, Tuncer A, Birben E, Oner C, Kalayci O. The effect of polymorphisms at the CD14 promoter and the TLR4 gene on asthma phenotypes in Turkish children with asthma. Allergy 2005; 60:1485-92. [PMID: 16266379 DOI: 10.1111/j.1398-9995.2005.00874.x] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Endotoxin, with its potential to enhance type 1 immunity, is a significant player in the hygiene hypothesis. The combined effects of the genetic variants of various molecules in the endotoxin response pathway on asthma related phenotypes are largely unknown. OBJECTIVE To investigate the effects of the genetic variants of CD14 and TLR4 genes on asthma phenotypes in a large number of asthmatic children. METHODS 613 asthmatic children were genotyped at the CD14-C159T, TLR4-A896G and TLR4-C1196T loci. IgE, eosinophil numbers and FEV1 were compared in 327 children who were not on any controller medications and were symptom free. Multivariate logistic regression was used to determine the factors associated with total IgE. RESULTS Among children with atopic asthma, total IgE levels were significantly different among the three genotypes in the co-dominant model [CC: 435 kU/l (interquartile range: 146-820); CT: 361 (140-710); TT 204 (98-435), P = 0.035]. TT genotype was significantly and independently associated with lower IgE levels (OR: 0.5 95%; CI = 0.28-0.90, P = 0.021). Both TLR4-A896G and TLR4-C1196T polymorphisms were more frequent in the mild asthma group with atopy (P = 0.032, 0.018, respectively). The combined effects of the genetic variants in CD14 and TLR4 genes did not improve the observed associations. CONCLUSION Our study demonstrates that the CD14-C159T promoter variant influences total IgE levels and also indicates that the T allele has a more profound effect on total IgE in children with atopic asthma. Polymorphisms in the TLR4 gene may be associated with milder forms of disease in atopic asthmatics in the population studied.
Collapse
Affiliation(s)
- C Saçkesen
- School of Medicine, Pediatric Allergy and Asthma Unit, Hacettepe University, Hacettepe, Ankara, Turkey
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|