1
|
Bildirici Y, Metintas S, Ucan A, Ak G, Eker Guvenc S, Metintas M. Post-COVID-19 syndrome in a cohort of hospitalized COVID-19 patients. Eur Rev Med Pharmacol Sci 2023; 27:8291-8300. [PMID: 37750657 DOI: 10.26355/eurrev_202309_33589] [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] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
OBJECTIVE The study aimed to investigate the frequency of post-COVID-19 syndrome and associated factors in patients who visited the post-COVID-19 outpatient clinic after hospital discharge in the first, third, and sixth months of the first year of the pandemic. PATIENTS AND METHODS The study was a clinical cohort study of patients hospitalized due to COVID-19. The modified British Medical Research Council (mMRC) Dyspnea Scale, the Clinical Frailty Scale (CFS), the Mini Nutritional Assessment short-form (MNA-SF), and the Malnutrition Universal Screening Tool (MUST) were evaluated using a standard form and symptom interview by a specialist physician. RESULTS Of the 254 patients in the study group, 50.4% were women, and their ages ranged from 18 to 85 years, with a mean (SD) of 55.3±11.5. Post-COVID-19 syndrome was diagnosed in 57.5% of the patients. It was found that the frequency of some of the symptoms persisted and increased in the first month, decreased significantly in the third month, and did not differ between the third and sixth months. Body mass index (BMI), MNA-SF, MUST, and CFS improved over time. Multiple logistic regression analysis showed that the risk of the post-COVID-19 syndrome was 1.91- and 1.40-fold higher in patients with severe COVID-19 and patients with more symptoms in the first month, respectively. CONCLUSIONS COVID-19 is not a short-term infectious disease but an infectious disease with long-term effects. Cohorts of patients who are still symptomatic at the end of the first month after severe COVID-19 should be followed up for a longer period and their clinical outcomes monitored.
Collapse
Affiliation(s)
- Y Bildirici
- Department of Pediatrics, Eskisehir City Hospital, Eskisehir, Turkey.
| | | | | | | | | | | |
Collapse
|
2
|
Yakar M, Etiz D, Celik O, Ozen A, Metintas M, Ak G, Yılmaz S, Kutri D. PO-1180 Machine Learning to Predict Survival in Small Cell Lung Cancer: A Pilot Study. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07631-3] [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: 10/20/2022]
|
3
|
Ak G, Metintas S, Dundar E, Metintas M. P24.05 Malignant Mesothelioma Related to Environmental Asbestos Exposure in a Rural Area: 30-year Follow-up. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.614] [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: 11/26/2022]
|
4
|
Metintas M, Ak G, Metintas S, Bogar F, Ozbayer C. P25.04 The Role of miRs in Determining the Response to Chemotherapy in MPM Patients Treated with Chemotherapy. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.622] [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: 10/21/2022]
|
5
|
Metintas S, Metintas M, Ak G, Hillerdal G. OA09.04 The Course of the Risk of Mesothelioma in Karain Cohort With Erionite Exposure Living in Stockholm: No Erionite Exposure No Mesothelioma. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.306] [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: 10/21/2022]
|
6
|
Mamadalieva NZ, Turginov OT, Zengin G, Akramov DK, Ak G, Honkeldieva MT, Tojibaev KS. Chemical Composition and Biological Activity of Constituents of Otostegia bucharica. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03313-1] [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: 10/22/2022]
|
7
|
Kürklü E, Öztürk Ş, Cassidy AJ, Ak G, Koray M, Çefle K, Palandüz Ş, Güllüoğlu MG, Tanyeri H, McLean WHI. Clinical features and molecular genetic analysis in a Turkish family with oral white sponge nevus. Med Oral Patol Oral Cir Bucal 2018; 23:e144-e150. [PMID: 29476668 PMCID: PMC5911358 DOI: 10.4317/medoral.21437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 12/25/2017] [Indexed: 11/06/2022] Open
Abstract
Background Oral white sponge nevus (WSN) is a rare autosomal dominant benign condition, characterized by asymptomatic spongy white plaques. Mutations in Keratin 4 (KRT4) and 13 (KRT13) have been shown to cause WSN. Familial cases are uncommon due to irregular penetrance. Thus, the aim of the study was: a) to demonstrate the clinical and histopathological features of a three-generation Turkish family with oral WSN b) to determine whether KRT4 or KRT13 gene mutation was the molecular basis of WSN. Material and Methods Out of twenty members of the family ten were available for assessment. Venous blood samples from six affected and five unaffected members and 48 healthy controls were obtained for genetic mutational analysis. Polymerase chain reaction was used to amplify all exons within KRT4 and KRT13 genes. These products were sequenced and the data was examined for mutations and polymorphisms. Results Varying presentation and severity of clinical features were observed. Analysis of the KRT13 gene revealed the sequence variant Y118D as the disease-causing mutation. One patient revealed several previously unreported polymorphisms including a novel mutation in exon 1 of the KRT13 gene and a heterozygous deletion in exon 1 of KRT4. This deletion in the KRT4 gene was found to be a common polymorphism reflecting a high allele frequency of 31.25% in the Turkish population. Conclusions Oral WSN may manifest variable clinical features. The novel mutation found in the KRT13 gene is believed to add evidence for a mutational hotspot in the mucosal keratins. Molecular genetic analysis is required to establish correct diagnosis and appropriate genetic consultation. Key words:White sponge nevus, leukokeratosis, oral mucosa, keratins, mutation.
Collapse
Affiliation(s)
- E Kürklü
- Istanbul University, Faculty of Dentistry, Department of Oral Surgery, 34093 Capa, Istanbul, Turkey,
| | | | | | | | | | | | | | | | | | | |
Collapse
|
8
|
Batirel HF, Ermerak N, Lacin T, Metintas M, Ak G, Yumuk F, Caglar H, Ahiskali R, Yildizeli B, Yuksel M. P-261EPITHELIOID MALIGNANT PLEURAL MESOTHELIOMA: IMPORTANCE OF EXTRAPLEURAL LYMPH NODE METASTASIS AND TRIMODALITY TREATMENT. Interact Cardiovasc Thorac Surg 2015. [DOI: 10.1093/icvts/ivv204.261] [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: 11/14/2022] Open
|
9
|
Kazancioglu H, Ak G, Turkmen A, Ozbek U, Tuncer F, Karabulut A. The Role of MDR1 C3435T Gene Polymorphism on Gingival Hyperplasia in Turkish Renal Transplant Patients Treated With Cyclosporine in the Absence of Calcium Channel Blockers. Transplant Proc 2013; 45:2233-7. [DOI: 10.1016/j.transproceed.2012.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2012] [Revised: 10/22/2012] [Accepted: 12/03/2012] [Indexed: 11/26/2022]
|
10
|
Ucgun I, Dagli CE, Kiremitci A, Yildirim H, Ak G, Aslan S. Effects of isolation rooms on the prevalence of hospital acquired pneumonia in a respiratory ICU. Eur Rev Med Pharmacol Sci 2013; 17 Suppl 1:2-8. [PMID: 23436659] [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] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND The incidence of hospital acquired pneumonia (HAP) varies according to the type of intensive care units (ICUs). AIM The aims of this study were to determine the frequency of hospital acquired pneumonia (HAP) and the effect of isolation rooms on the frequency of pneumonia in the ICU. MATERIALS AND METHODS The present investigation was carried out between January 2004 and July 2008. The ICU, which was 4-bed ward-type between January 2004 and February 2006 (1st period), was reconfigured as isolated rooms with only 2 beds each after March 2006 (2nd period). 153 and 379 patients were followed up in the ICU in the 1st and 2nd periods, respectively. Blood, sputum, and deep tracheal aspiration cultures were used for the isolation of the causative agents. RESULTS No significant difference was detected between the general characteristics of patients. HAP developed in 101 patients (19%). The prevalence of HAP was 22.9% in the 1st period and 17.4% in the 2nd period. During the 1st and 2nd periods, the HAP infection densities were 22.2 and 16.1/1000 patient-days and the ventilator-associated pneumonia densities were 48.1 and 37.6/1000 ventilator-days, respectively. Eighty-six percent of HAP was ventilator-associated pneumonia (VAP). CONCLUSIONS Isolation rooms in the ICU may be an effective strategy to control and decrease the rate of pneumonia in the ICU in addition to other preventive strategies.
Collapse
MESH Headings
- APACHE
- Aged
- Cross Infection/diagnosis
- Cross Infection/epidemiology
- Cross Infection/microbiology
- Cross Infection/mortality
- Cross Infection/prevention & control
- Cross Infection/transmission
- Female
- Hospital Mortality
- Humans
- Infection Control/methods
- Intensive Care Units
- Logistic Models
- Male
- Middle Aged
- Multivariate Analysis
- Patient Isolation
- Pneumonia, Bacterial/diagnosis
- Pneumonia, Bacterial/epidemiology
- Pneumonia, Bacterial/microbiology
- Pneumonia, Bacterial/mortality
- Pneumonia, Bacterial/prevention & control
- Pneumonia, Bacterial/transmission
- Pneumonia, Ventilator-Associated/diagnosis
- Pneumonia, Ventilator-Associated/epidemiology
- Pneumonia, Ventilator-Associated/microbiology
- Pneumonia, Ventilator-Associated/mortality
- Pneumonia, Ventilator-Associated/prevention & control
- Prevalence
- Respiration, Artificial/adverse effects
- Time Factors
- Treatment Outcome
- Turkey/epidemiology
Collapse
Affiliation(s)
- I Ucgun
- Department of Chest Diseases, University of Osmangazi, Eskisehir, Turkey.
| | | | | | | | | | | |
Collapse
|
11
|
Ergun S, Özel S, Koray M, Kürklü E, Ak G, Tanyeri H. Dentists’ knowledge and opinions about oral mucosal lesions. Int J Oral Maxillofac Surg 2009; 38:1283-8. [DOI: 10.1016/j.ijom.2009.07.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2007] [Revised: 01/22/2009] [Accepted: 07/07/2009] [Indexed: 11/29/2022]
|
12
|
Dundar E, Oner U, Peker BC, Metintas M, Isiksoy S, Ak G. The Significance and Relationship between Mast Cells and Tumour Angiogenesis in Non-small Cell Lung Carcinoma. J Int Med Res 2008; 36:88-95. [DOI: 10.1177/147323000803600112] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This study investigated whether microvessel density (MVD) and mast cell infiltration are related to prognosis in non-small cell lung carcinoma (NSCLC), and examined the possible role of mast cells in NSCLC angiogenesis. MVD and mast cell infiltration were analysed retrospectively in tumour specimens from 50 patients with primary NSCLC. Immunohistochemistry with monoclonal antibody anti-CD34 was used to delineate the microvessels and routine Giemsa blue staining was used to assess the number of mast cells. Significant correlations were found between MVD and mast cell infiltration and between MVD and both lymph node metastasis and tumour, node, metastases (TNM) stage. No significant correlations were found with respect to survival for MVD or mast cell infiltration. Multivariate analysis showed that TNM stage and tumour size were independent predictors of survival, suggesting that the TNM staging system remains the most important tool for the estimation of prognosis in NSCLC patients.
Collapse
Affiliation(s)
- E Dundar
- Department of Pathology, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - U Oner
- Department of Pathology, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - B Cengiz Peker
- Department of Pathology, Yunus Emre Community Hospital, Eskisehir, Turkey
| | - M Metintas
- Department of Respiratory Medicine, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - S Isiksoy
- Department of Pathology, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| | - G Ak
- Department of Respiratory Medicine, Eskisehir Osmangazi University Faculty of Medicine, Eskisehir, Turkey
| |
Collapse
|
13
|
Metintas M, Parspour S, Ak G, Yildirim H, Ergine S, Alatas F, Metintas S, Dundar E. 70 The evaluation of local dissemination on intervention sites in malignant mesothelioma patients and indications for prophylactic radiotherapy. Lung Cancer 2006. [DOI: 10.1016/s0169-5002(07)70146-0] [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: 10/23/2022]
|
14
|
Ozer N, Alpkilic E, Hayirlioglu A, Ak G. OC3 Burkitt's lymphoma: a rare sporadic case. Oral Dis 2006. [DOI: 10.1111/j.1601-0825.2006.01308_3.x] [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: 11/28/2022]
|
15
|
Koray M, Ak G, Kurklu E, Isseur H, Tonyen T, Kukeka G, Guy U. LETTERS TO THE EDITOR. Oral Dis 2006. [DOI: 10.1111/j.1601-0825.2006.01276_2.x] [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: 11/28/2022]
|
16
|
Koray M, Ak G, Kurklu E, Issever H, Tanyeri H, Kulekci G, Guc U. Fluconazole and/or hexetidine for management of oral candidiasis associated with denture-induced stomatitis. Oral Dis 2005; 11:309-13. [PMID: 16120118 DOI: 10.1111/j.1601-0825.2005.01124.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [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: 12/01/2022]
Abstract
OBJECTIVE The aim of the present study was to compare the influence of fluconazole capsules and/or hexetidine mouthrinses for the management of oral candidiasis associated with denture stomatitis. DESIGN RELEVANT: Sixty-one patients (ages 43-76 years, mean: 61) admitted to the Department of Oral Surgery and Medicine and diagnosed as suffering from oral candidiasis associated with denture stomatitis by microbiological examination were involved. MATERIALS AND METHODS Patients in group 1 (n = 21) were given only fluconazole capsules (Zolax 50 mg once a day), those in group 2 (n = 18) were given only hexetidine mouthrinses (Heksoral 0.1%, twice daily), whereas those in group 3 (n = 22) were given both fluconazole capsules and hexetidine mouthrinses for 14 days. The yeast colonies of the saliva samples were counted and calculated as the number of colony forming units per milliliter. The presence of yeasts in the lesion and denture samples were evaluated as present/absent according to their growth on cultures. Candida albicans was identified by means of germ tube analysis. RESULTS Patients in groups 1, 2 and 3 had a statistically significant decrease in the amount of C. albicans in saliva, lesions and dentures after treatment, when compared with pretreatment results (P < 0.05). Candida albicans counts in saliva, lesion and denture after treatment detected no statistically significant difference when the three groups were compared. CONCLUSION Of the three study groups, group 2, where hexetidine was the only medication prescribed, was found to be superior on account of fewer potential complications. We conclude that dentists should employ a more conservative intervention with oral mouthrinses rather than risk adverse effects and complications of systemic drugs for the management of oral candidiasis.
Collapse
Affiliation(s)
- M Koray
- Department of Oral Medicine and Oral Surgery, Faculty of Dentistry, Istanbul University, Turkey.
| | | | | | | | | | | | | |
Collapse
|
17
|
Abstract
OBJECTIVE The aim of this study was to determine any association between anxiety and salivary cortisol levels in oral lichen planus (OLP) patients by the case-control method. DESIGN RELEVANT: Forty patients with OLP were evaluated. The OLP diagnosis was established through a composite of accepted clinical and histopathological characteristics. Forty patients from the register of patients who obtained general dental care were selected as controls. MATERIAL AND METHOD The saliva samples collected between 9:00 and 9:15 am were analysed for the level of cortisol with Cortisol EIA that used competitive enzyme-linked immunosorbent assay method. Trait and state anxiety levels of 80 patients were measured using the Spielberger's State-Trait Anxiety Inventory. RESULTS The mean level of cortisol from 40 saliva samples in study group was 1.46 and 0.93 microg dl(-1) in 40 controls (P=0.001). The mean level for state anxiety in the study group were 48.85 and 39.45 in control group (P=0.001). Trait anxiety levels in study group were 49.77 and 38.51 in control group (P=0.001). We found that salivary cortisol, state and trait anxiety levels in OLP group were significantly higher than in the control group. CONCLUSION Because of the fact that the level of anxiety and salivary cortisol of OLP patients were high, our findings concluded that this disease is closely related with stress. Thus besides traditional treatment of OLP patients, our findings suggest that psychological support is also needed.
Collapse
Affiliation(s)
- M Koray
- Department of Oral Medicine and Oral Surgery, Faculty of Dentistry, Istanbul University, Istanbul, Turkey.
| | | | | | | | | | | | | |
Collapse
|
18
|
Ak G, Buyukberber S, Sevinc A, Turk HM, Ates M, Sari R, Savli H, Cigli A. The relation between plasma endothelin-1 levels and metabolic control, risk factors, treatment modalities, and diabetic microangiopathy in patients with Type 2 diabetes mellitus. J Diabetes Complications 2001; 15:150-7. [PMID: 11358684 DOI: 10.1016/s1056-8727(01)00137-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We evaluated the possible relation between plasma endothelin-1 (ET-1) levels and metabolic control, risk factors, treatment modalities, and diabetic microangiopathy, including nephropathy, neuropathy, and retinopathy in patients with Type 2 diabetes and healthy control group. Sixty-eight (39 females and 29 males) patients with Type 2 diabetes and 14 (6 females and 8 males) healthy subjects were included in the study. Plasma ET-1 levels were found to be 10.46+/-1.24 pmol/l in the diabetic group, whereas 7.97+/-0.41 pmol/l in the control group, which was statistically significant (P<.01). We also found elevated plasma ET-1 levels in patients with the least one microvascular complication when compared with the uncomplicated diabetes group (P=.02). Moreover, plasma ET-1 levels of the uncomplicated group was higher than the control group (P<.05). Plasma ET-1 levels were significantly elevated in hypertensive diabetics than normotensive diabetics (t=2.58, P=.012). It was also found to be elevated in diabetic patients with diabetes duration of more than 10 years when compared with patients less than 10 years (P=.02). These findings can be interpreted as the increased damage of microvascular complications in the disease process that may lead to elevated ET-1 levels. Mean plasma ET-1 levels in diabetic patients with a family history of diabetes was found to be higher than patients with no family history of diabetes. Genetical and environmental factors may have an effect on ET-1 level. We also studied the correlations of plasma ET-1 levels on age, sex, fasting blood glucose levels, treatment modalities HbA1c, hyperlipidemia, C-peptide, Body Mass Index, and smoking, but did not find any statistically significant difference. In conclusion, plasma ET-1 levels are well correlated with microangiopathy, hypertension, increased disease duration, and family history of diabetes, but poorly correlated with metabolic control, treatment modalities, age, sex, hyperlipidemia, obesity, and smoking.
Collapse
Affiliation(s)
- G Ak
- Department of Internal Medicine, School of Medicine, Inonu University, Turgut Ozal Medical Center, Malatya, TR-44069, Turkey
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Abstract
We present the case of a young woman suffering from both ankylosing spondylitis and Behçet's disease, associated with a severe inflammatory arthritis. Although the HLA phenotype was positive for HLA-B27 and negative for HLA-B5, the clinical findings, especially the joint manifestations of Behçet's disease, seem to appear dominantly. The meaning of this rare combination was discussed with a review of the literature.
Collapse
Affiliation(s)
- P Borman
- Department of Physical Medicine and Rehabilitation, Numune Education and Research Hospital, Samanpazari, Ankara, Turkey.
| | | | | | | | | |
Collapse
|
20
|
Turk HM, Buyukberber S, Sevinc A, Ak G, Ates M, Sari R, Savli H, Cigli A. Relationship between plasma adrenomedullin levels and metabolic control, risk factors, and diabetic microangiopathy in patients with type 2 diabetes. Diabetes Care 2000; 23:864-7. [PMID: 10841017 DOI: 10.2337/diacare.23.6.864a] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
21
|
Türkmen A, Ak G, Furuncuoglu Y, Akar U, Seyhun Y, Türk S, Carin M, Sever MS. Relationship between gingival hyperplasia and class II histocompatibility antigens in renal transplant recipients. Nephron Clin Pract 2000; 84:29-31. [PMID: 10644905 DOI: 10.1159/000045535] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 11/19/2022] Open
Abstract
Gingival hyperplasia, a well-known side effect of ciclosporin A (CS-A), is much more prominent when CS-A is used in combination with calcium channel blockers, especially dihydropyridines. On the other hand, it is interesting to note that this complication is not observed in all patients using this drug combination. This study was conducted in order to investigate the relationship (if any) between major histocompatibility complex antigens and gingival hyperplasia. Seventy-six renal transplantation patients were evaluated by an experienced dentist for gingival hyperplasia. The patients were then divided into two groups according to the presence (group 1, n = 18) or absence (group 2, n = 58) of gingival hyperplasia. There was no significant difference between the two groups regarding age, sex, transplant age, donor type, antihypertensive and immunosuppressive therapy protocols, and CS-A levels. HLA-DR2 antigen was present in 63% of the patients with gingival hyperplasia and in 34% of the patients without gingival hyperplasia. However, the HLA-DR1 antigen frequencies were found to be 11 and 22% in group 1 and group 2, respectively. In patients receiving nifedipine as an antihypertensive therapy, gingival hyperplasia developed more often than in patients receiving verapamil or diltiazem. As a result, in renal allograft recipients with HLA-DR1 antigen, gingival hyperplasia was seen less frequently than in HLA-DR2-positive patients. It is believed that the presence of these antigens regulates the response of the patients to either CS-A and/or calcium channel blockers.
Collapse
Affiliation(s)
- A Türkmen
- Istanbul School of Dentistry, Istanbul, Turkey
| | | | | | | | | | | | | | | |
Collapse
|