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Duzkopru Y, Eren T, Kocanoglu A, Dogan O, Isak OA, Ergun O. Factors affecting survival in patients undergoing percutaneous transhepatic biliary drainage for malignant biliary obstruction. Eur Rev Med Pharmacol Sci 2024; 28:1554-1561. [PMID: 38436188 DOI: 10.26355/eurrev_202402_35484] [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: 03/05/2024]
Abstract
OBJECTIVE The general approach to malignant biliary obstruction (MBO) is to provide drainage in all patients with jaundice. However, the procedure is often palliative, and its contribution to survival is debated. This study aimed to investigate prognostic factors in patients undergoing percutaneous transhepatic biliary drainage (PTBD) for MBO. PATIENTS AND METHODS All laboratory values were divided into two groups based on median values: low and high. Chi-square analysis was performed for dichotomous data. The time from the PTBD procedure to the date of death or last follow-up was considered overall survival (OS). Univariate and multivariate analyses were calculated using the Cox regression model. RESULTS A total of 152 patients were included in the study, of whom 84 (55.3%) were male. The median OS was 71 ± 12.6 days (95% CI: 46.3-95.7). The 1, 3, 6, and 12-month OS rates were 74.3%, 45.2%, 29.2%, and 13%, respectively. In the multivariate analysis, comorbidity (p=0.029), Eastern cooperative oncology group performance status (ECOG PS) (p=0.007), pre-PTBD albumin (p=0.025), post-PTBD aspartate aminotransferase (p=0.025), chemo naive (p<0.001), and post-PTBD chemotherapy (CT) (p=0.01) were found to be independent prognostic factors. CONCLUSIONS In patients with poor prognosis MBO, the decision for PTBD should be made multidisciplinarily, taking into consideration ECOG PS, comorbidities, albumin levels, and prior CT status.
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Affiliation(s)
- Y Duzkopru
- Department of Medical Oncology, Ankara Etlik City Hospital, Ankara, Turkey.
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Batman A, Yazıcı D, Dikbaş O, Ağbaht K, Saygılı ES, Demirci İ, Bursa N, Ayas G, Anıl C, Cesur M, Korkmaz FN, Bahçecioglu AB, Çorapçıoğlu D, Erdoğan MF, Bostan H, Calapkulu M, Hepşen S, Uçan B, Çakal E, Güler BY, Haymana C, İpekçi SH, Aydın S, Sezer H, Özışık S, Deyneli O, Alagöl F, Tanakol R, Eroğlu M, Mutlu Ü, Hacışahinoğulları H, Üzüm AK, Demir C, Koç G, Fırat SN, Omma T, İnce N, Polat ŞB, Topaloğlu O, Aydın C, Çakır B, Bahadır ÇT, Güven M, Sözen M, Selek A, Cantürk Z, Çetinarslan B, Aydemir M, Taşkaldıran I, Bozkuş Y, İyidir ÖT, Haydardedeoğlu FE, Basmaz SE, Ünal MÇ, Demir T, Oğuz A, Çelik Ö, Yilmaz M, Cimsir A, Kayıhan S, Uc ZA, Tekin S, Topaloğlu Ö, Saydam BÖ, Ünsal YA, Özer Ö, Yorulmaz G, Uğur K, Çakır SD, Aşık M, Unubol M, Genc S, Andac B, Okur M, Dogan O, Karakiliç E, Kocabas GU, Kirac CO, Cansu GB, Uygur MM, Pekkolay Z, Öztürk S, Güngüneş A, Gürkan E, Keskin L, Çağlayan K, Günay YE, İmre E, Şener SY, Kalkan AT, Gök DE, Şahin M. Subacute THYROiditis Related to SARS-CoV-2 VAccine and Covid-19 (THYROVAC Study): A Multicenter Nationwide Study. J Clin Endocrinol Metab 2023; 108:e1013-e1026. [PMID: 37186260 DOI: 10.1210/clinem/dgad235] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 04/13/2023] [Accepted: 04/17/2023] [Indexed: 05/17/2023]
Abstract
CONTEXT The aims of the study are to compare characteristics of subacute thyroiditis (SAT) related to different etiologies, and to identify predictors of recurrence of SAT and incident hypothyroidism. METHODS This nationwide, multicenter, retrospective cohort study included 53 endocrinology centers in Turkey. The study participants were divided into either COVID-19-related SAT (Cov-SAT), SARS-CoV-2 vaccine-related SAT (Vac-SAT), or control SAT (Cont-SAT) groups. RESULTS Of the 811 patients, 258 (31.8%) were included in the Vac-SAT group, 98 (12.1%) in the Cov-SAT group, and 455 (56.1%) in the Cont-SAT group. No difference was found between the groups with regard to laboratory and imaging findings. SAT etiology was not an independent predictor of recurrence or hypothyroidism. In the entire cohort, steroid therapy requirement and younger age were statistically significant predictors for SAT recurrence. C-reactive protein measured during SAT onset, female sex, absence of antithyroid peroxidase (TPO) positivity, and absence of steroid therapy were statistically significant predictors of incident (early) hypothyroidism, irrespective of SAT etiology. On the other hand, probable predictors of established hypothyroidism differed from that of incident hypothyroidism. CONCLUSION Since there is no difference in terms of follow-up parameters and outcomes, COVID-19- and SARS-CoV-2 vaccine-related SAT can be treated and followed up like classic SATs. Recurrence was determined by younger age and steroid therapy requirement. Steroid therapy independently predicts incident hypothyroidism that may sometimes be transient in overall SAT and is also associated with a lower risk of established hypothyroidism.
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Affiliation(s)
- Adnan Batman
- Department of Internal Medicine, Division of Endocrinology and Metabolism, School of Medicine, Koc University, 34010 Istanbul, Turkey
| | - Dilek Yazıcı
- Department of Internal Medicine, Division of Endocrinology and Metabolism, School of Medicine, Koc University, 34010 Istanbul, Turkey
| | - Oğuz Dikbaş
- Department of Endocrinology and Metabolism, Giresun University School of Medicine, 28200 Giresun, Turkey
| | - Kemal Ağbaht
- Department of Endocrinology and Metabolism, Defne Hospital, 31030 Hatay, Turkey
| | - Emre Sedar Saygılı
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Faculty of Medicine, Canakkale Onsekiz Mart University, 17020 Canakkale, Turkey
| | - İbrahim Demirci
- Department of Endocrinology and Metabolism, Gulhane Training and Research Hospital, University of Health Sciences Turkey, 06010 Ankara, Turkey
| | - Nurbanu Bursa
- Department of Statistics Beytepe, Hacettepe University, 06230 Ankara, Turkey
| | - Görkem Ayas
- School of Medicine, Koc University, 34450 Istanbul, Turkey
| | - Cüneyd Anıl
- Department of Endocrinology and Metabolic Diseases, Güven Hospital, 06540 Ankara, Turkey
| | - Mustafa Cesur
- Department of Endocrinology and Metabolic Diseases, Güven Hospital, 06540 Ankara, Turkey
| | - Fatma Nur Korkmaz
- Department of Endocrinology and Metabolism, Ankara University, School of Medicine, 06050 Ankara, Turkey
| | - Adile Begüm Bahçecioglu
- Department of Endocrinology and Metabolism, Ankara University, School of Medicine, 06050 Ankara, Turkey
| | - Demet Çorapçıoğlu
- Department of Endocrinology and Metabolism, Ankara University, School of Medicine, 06050 Ankara, Turkey
| | - Murat Faik Erdoğan
- Department of Endocrinology and Metabolism, Ankara University, School of Medicine, 06050 Ankara, Turkey
| | - Hayri Bostan
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Diskapi Yildirim Beyazit Training and Research Hospital, 06110 Ankara, Turkey
| | - Murat Calapkulu
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Diskapi Yildirim Beyazit Training and Research Hospital, 06110 Ankara, Turkey
| | - Sema Hepşen
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Diskapi Yildirim Beyazit Training and Research Hospital, 06110 Ankara, Turkey
| | - Bekir Uçan
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Diskapi Yildirim Beyazit Training and Research Hospital, 06110 Ankara, Turkey
| | - Erman Çakal
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Diskapi Yildirim Beyazit Training and Research Hospital, 06110 Ankara, Turkey
| | - Bağdagül Yüksel Güler
- Department of Endocrinology and Metabolism, Gulhane Training and Research Hospital, University of Health Sciences Turkey, 06010 Ankara, Turkey
| | - Cem Haymana
- Department of Endocrinology and Metabolism, Gulhane Training and Research Hospital, University of Health Sciences Turkey, 06010 Ankara, Turkey
| | - Süleyman Hilmi İpekçi
- Department of Endocrinology, Hisar Intercontinental Hospital, 34768 Istanbul, Turkey
| | - Selami Aydın
- Department of Internal Medicine, Hisar Intercontinental Hospital, 34768 Istanbul, Turkey
| | - Havva Sezer
- Department of Internal Medicine, Division of Endocrinology and Metabolism, School of Medicine, Koc University, 34010 Istanbul, Turkey
| | - Seçil Özışık
- Department of Internal Medicine, Division of Endocrinology and Metabolism, School of Medicine, Koc University, 34010 Istanbul, Turkey
| | - Oğuzhan Deyneli
- Department of Internal Medicine, Division of Endocrinology and Metabolism, School of Medicine, Koc University, 34010 Istanbul, Turkey
| | - Faruk Alagöl
- Department of Endocrinology and Metabolism, VKV Amerikan Hospital-Koç University School of Medicine, 34365 Istanbul, Turkey
| | - Refik Tanakol
- Department of Endocrinology and Metabolism, VKV Amerikan Hospital-Koç University School of Medicine, 34365 Istanbul, Turkey
| | - Mustafa Eroğlu
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Balikesir University Faculty of Medicine, 10145 Balikesir, Turkey
| | - Ümmü Mutlu
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Istanbul Faculty of Medicine, Istanbul University, 34093 Istanbul, Turkey
| | - Hülya Hacışahinoğulları
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Istanbul Faculty of Medicine, Istanbul University, 34093 Istanbul, Turkey
| | - Ayşe Kubat Üzüm
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Istanbul Faculty of Medicine, Istanbul University, 34093 Istanbul, Turkey
| | - Canan Demir
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Atilim University School of Medicine, 06830 Ankara, Turkey
| | - Gönül Koç
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Ankara Training and Research Hospital, 06230 Ankara, Turkey
| | - Sevde Nur Fırat
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Ankara Training and Research Hospital, 06230 Ankara, Turkey
| | - Tülay Omma
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Ankara Training and Reasearch Hospital, 06230 Ankara, Turkey
| | - Nurcan İnce
- Department of Endocrinology and Metabolism, Ankara Yildirim Beyazit University Faculty of Medicine, Ankara City Hospital, 06800 Ankara, Turkey
| | - Şefika Burçak Polat
- Department of Endocrinology and Metabolism, Ankara Yildirim Beyazit University Faculty of Medicine, Ankara City Hospital, 06800 Ankara, Turkey
| | - Oya Topaloğlu
- Department of Endocrinology and Metabolism, Ankara Yildirim Beyazit University Faculty of Medicine, Ankara City Hospital, 06800 Ankara, Turkey
| | - Cevdet Aydın
- Department of Endocrinology and Metabolism, Ankara Yildirim Beyazit University Faculty of Medicine, Ankara City Hospital, 06800 Ankara, Turkey
| | - Bekir Çakır
- Department of Endocrinology and Metabolism, Ankara Yildirim Beyazit University Faculty of Medicine, Ankara City Hospital, 06800 Ankara, Turkey
| | - Çiğdem Tura Bahadır
- Department of Endocrinology and Metabolism, Amasya University, School of Medicine, 05100 Amasya, Turkey
| | - Mehmet Güven
- Department of Endocrinology and Metabolism, Sirnak State Hospital, 73000 Sirnak, Turkey
| | - Mehmet Sözen
- Department of Endocrinology and Metabolism, Kocaeli University, School of Medicine, 41000 Kocaeli, Turkey
| | - Alev Selek
- Department of Endocrinology and Metabolism, Kocaeli University, School of Medicine, 41000 Kocaeli, Turkey
| | - Zeynep Cantürk
- Department of Endocrinology and Metabolism, Kocaeli University, School of Medicine, 41000 Kocaeli, Turkey
| | - Berrin Çetinarslan
- Department of Endocrinology and Metabolism, Kocaeli University, School of Medicine, 41000 Kocaeli, Turkey
| | - Mustafa Aydemir
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Akdeniz University, School of Medicine, 07050 Antalya, Turkey
| | - Işılay Taşkaldıran
- Department of Endocrinology and Metabolism, Faculty of Medicine, Baskent University, 06790 Ankara, Turkey
| | - Yusuf Bozkuş
- Department of Endocrinology and Metabolism, Faculty of Medicine, Baskent University, 06790 Ankara, Turkey
| | - Özlem Turhan İyidir
- Department of Endocrinology and Metabolism, Faculty of Medicine, Baskent University, 06790 Ankara, Turkey
| | - Filiz Ekşi Haydardedeoğlu
- Department of Endocrinology and Metabolism, Faculty of Medicine, Baskent University, 79097 Adana, Turkey
| | - Seda Erem Basmaz
- Department of Endocrinology and Metabolism, Kocaeli Derince Training and Research Hospital, 41900 Kocaeli, Turkey
| | - Mehmet Çağrı Ünal
- Department of Endocrinology and Metabolism, Faculty of Medicine, Dokuz Eylul University, 35330 Izmir, Turkey
| | - Tevfik Demir
- Department of Endocrinology and Metabolism, Faculty of Medicine, Dokuz Eylul University, 35330 Izmir, Turkey
| | - Ayten Oğuz
- Department of Endocrinology and Metabolism, Faculty of Medicine, Biruni University, 34295 Istanbul, Turkey
| | - Özlem Çelik
- Department of Endocrinology and Metabolism, Faculty of Medicine, Acıbadem University, 34752 Istanbul, Turkey
| | - Merve Yilmaz
- Department of Endocrinology and Metabolism, Samsun State Hospital, 55060 Samsun, Turkey
| | - Aykut Cimsir
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Diskapi Yildirim Beyazit Training and Research Hospital, 06110 Ankara, Turkey
| | - Serdar Kayıhan
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Diskapi Yildirim Beyazit Training and Research Hospital, 06110 Ankara, Turkey
| | - Ziynet Alphan Uc
- Department of Endocrinology and Metabolism, Usak University, Usak Training and Research Hospital, 64300 Usak, Turkey
| | - Sakin Tekin
- Department of Endocrinology and Metabolism, Faculty of Medicine, Zonguldak Bulent Ecevit University, 67100 Zonguldak, Turkey
| | - Ömercan Topaloğlu
- Department of Endocrinology and Metabolism, Faculty of Medicine, Zonguldak Bulent Ecevit University Obesity and Diabetes Practice and Research Center, 67100 Zonguldak, Turkey
| | - Başak Özgen Saydam
- Department of Endocrinology and Metabolism, Ankara Yildirim Beyazit University, Yenimahalle Training and Research Hospital, 06370 Ankara, Turkey
| | - Yasemin Aydoğan Ünsal
- Department of Endocrinology and Metabolism, Ankara Yildirim Beyazit University, Yenimahalle Training and Research Hospital, 06370 Ankara, Turkey
| | - Özge Özer
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Faculty of Medicine, Eskisehir Osmangazi University, 26040 Eskisehir, Turkey
| | - Göknur Yorulmaz
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Faculty of Medicine, Eskisehir Osmangazi University, 26040 Eskisehir, Turkey
| | - Kader Uğur
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Faculty of Medicine, Fırat University, 23119 Elazıg, Turkey
| | - Sezin Doğan Çakır
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Istanbul Taksim Training and Research Hospital, 34433 Istanbul, Turkey
| | - Mehmet Aşık
- Endocrinologist, Private Office, Bodrum, 48400 Mugla, Turkey
| | - Mustafa Unubol
- Department of Endocrinology and Metabolism, School of Medicine, Adnan Menderes University, 09100 Aydin, Turkey
| | - Selin Genc
- Department of Endocrinology and Metabolism, School of Medicine, Inonu University, 44280 Malatya, Turkey
| | - Burak Andac
- Department of Endocrinology and Metabolism, School of Medicine, Trakya University, 22130 Edirne, Turkey
| | - Mine Okur
- Department of Endocrinology and Metabolism, School of Medicine, Trakya University, 22130 Edirne, Turkey
| | - Ozlem Dogan
- Department of Endocrinology and Metabolism, University of Health Sciences Turkey, Haseki Training and Research Hospital, 34096 Istanbul, Turkey
| | - Ersen Karakiliç
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Faculty of Medicine, Canakkale Onsekiz Mart University, 17020 Canakkale, Turkey
| | - Gokcen Unal Kocabas
- Department of Endocrinology and Metabolism, Faculty of Medicine, Ege University, 35100 Izmir, Turkey
| | - Cem Onur Kirac
- Department of Endocrinology and Metabolism, Kahramanmaras Necip Fazil City Hospital, 46050 Kahramanmaras, Turkey
| | - Güven Barış Cansu
- Department of Endocrinology and Metabolism, School of Medicine, Kutahya University of Health Sciences, 43100 Kutahya, Turkey
| | - Meliha Melin Uygur
- Department of Endocrinology and Metabolism, School of Medicine, Marmara University, Pendik Training and Research Hospital, 34899 Istanbul, Turkey
| | - Zafer Pekkolay
- Department of Endocrinology and Metabolism, School of Medicine, Dicle University, 21100 Diyarbakir, Turkey
| | - Sadettin Öztürk
- Department of Endocrinology and Metabolism, School of Medicine, Gaziantep University, 27850 Gaziantep, Turkey
| | - Aşkın Güngüneş
- Department of Endocrinology and Metabolism, School of Medicine, Kırıkkale University, 71300 Kırıkkale, Turkey
| | - Eren Gürkan
- Department of Endocrinology and Metabolism, School of Medicine, Hatay Mustafa Kemal University, 31001 Hatay, Turkey
| | - Lezzan Keskin
- Department of Endocrinology and Metabolism, School of Medicine, Malatya Turgut Ozal University, Malatya Training and Research Hospital, 44000 Malatya, Turkey
| | - Kenan Çağlayan
- Department of Endocrinology and Metabolism, School of Medicine, Baskent University Istanbul Hospital, 34662 Istanbul, Turkey
| | - Yasemin Emur Günay
- Department of Endocrinology and Metabolism, School of Medicine, Karadeniz Technical University, 61080 Trabzon, Turkey
| | - Eren İmre
- Department of Endocrinology and Metabolism, Dr Ersin Arslan Education and Research Hospital, 27010 Gaziantep, Turkey
| | - Selcuk Yusuf Şener
- Department of Endocrinology and Metabolism, Pendik Medikalpark Hospital, 34899 Istanbul, Turkey
| | - Ahmet Toygar Kalkan
- Department of Endocrinology and Metabolism, Kastamonu Research and Training Hospital, 37150 Kastamonu, Turkey
| | - Deniz Engin Gök
- Department of Endocrinology and Metabolism, Lokman Hekim Hospital, 06700 Ankara, Turkey
| | - Mustafa Şahin
- Department of Endocrinology and Metabolism, Ankara University, School of Medicine, 06050 Ankara, Turkey
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Duzkopru Y, Kocanoglu A, Dogan O, Sahinli H, Cilbir E, Altinbas M. Hemoglobin, albumin, lymphocyte, and platelet score as a predictor of prognosis in metastatic gastric cancer. World J Gastrointest Oncol 2023; 15:1626-1635. [PMID: 37746652 PMCID: PMC10514725 DOI: 10.4251/wjgo.v15.i9.1626] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 06/17/2023] [Accepted: 07/29/2023] [Indexed: 09/13/2023] Open
Abstract
BACKGROUND The hemoglobin, albumin, lymphocyte, and platelet (HALP) score, derived from a composite evaluation of markers reflecting the tumor-inflammation relationship and nutritional status, has been substantiated as a noteworthy prognostic determinant for diverse malignancies. AIM To investigate how the HALP score relates to prognosis in patients with metastatic gastric cancer. METHODS The cutoff values for the HALP score, neutrophil/lymphocyte ratio, and platelet/lymphocyte ratio were determined using receiver operating characteristic analysis. Low HALP scores were defined as those less than 24.79 and high HALP scores as those greater than 24.79. RESULTS The study cohort comprised 147 patients and 110 of them (74.8%) were male. The patients' median age was 63 (22-89) years. The median overall survival was significantly superior in the patients with high HALP scores than in those with low HALP scores (10.4 mo vs 7.5 mo, respectively; P < 0.001). CONCLUSION The HALP score was found to be a prognostic factor in patients with metastatic gastric cancer.
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Affiliation(s)
- Yakup Duzkopru
- Department of Medical Oncology, Ankara Etlik City Hospital, Ankara 06170, Turkey
| | - Abdulkadir Kocanoglu
- Department of Medical Oncology, Ankara Etlik City Hospital, Ankara 06170, Turkey
| | - Ozlem Dogan
- Department of Medical Oncology, Ankara Etlik City Hospital, Ankara 06170, Turkey
| | - Hayriye Sahinli
- Department of Medical Oncology, Ankara Etlik City Hospital, Ankara 06170, Turkey
| | - Ebru Cilbir
- Department of Medical Oncology, Ankara Etlik City Hospital, Ankara 06170, Turkey
| | - Mustafa Altinbas
- Department of Medical Oncology, Ankara Etlik City Hospital, Ankara 06170, Turkey
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Baydemir ŞK, Sukur YE, Ersan N, Dogan O, Atabekoglu CS. Cord blood anti-Müllerian hormone levels are higher in female newborns from women with polycystic ovary syndrome (PCOS) when compared to non-PCOS controls, irrespective of body mass index; a prospective case-control study. JBRA Assist Reprod 2023; 27:422-427. [PMID: 37417851 DOI: 10.5935/1518-0557.20230005] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/08/2023] Open
Abstract
OBJECTIVE To compare cord-blood anti-Müllerian hormone levels between female newborns from women with and without polycystic ovary syndrome. METHODS A prospective case-control study was conducted in Ankara University School of Medicine, Department of Obstetrics and Gynecology between June 2020 and January 2021. In total, 408 women gave birth to a female during the study period. Of those, 45 had a polycystic ovary syndrome-like history. We did not find the preconceptional history of 16 women. Two women were excluded due to other endocrine disorders. The polycystic ovary syndrome group consisted of 27 women with polycystic ovary syndrome that gave birth to a female newborn during the study period and the non-polycystic ovary syndrome control group consisted of 33 women who had regular cycles prior to pregnancy, were never diagnosed with polycystic ovary syndrome, and gave birth to female newborns. The primary outcome measure was the cord-blood anti-Müllerian hormone levels. RESULTS The median cord-blood anti-Müllerian hormone levels of female newborns from polycystic ovary syndrome patients were significantly higher than those in the non-polycystic ovary syndrome group (0.33ng/ml vs. 0.12ng/ml, respectively; p<0.001). In addition, cord blood anti-Müllerian hormone levels were significantly higher in both obese and non-obese polycystic ovary syndrome patients when compared to body-mass-index-matched non- polycystic ovary syndrome patients (0.37ng/ml vs. 0.06ng/ml, respectively; p=0.013 and 0.30ng/ml vs. 0.11 ng/ml, respectively; p=0.003). CONCLUSIONS The cord blood anti-Müllerian hormone levels were higher in female newborns of women with polycystic ovary syndrome when compared to non-polycystic ovary syndrome controls. The effect of polycystic ovary syndrome seems to be greater than body mass index on cord blood anti-Müllerian hormone levels.
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Affiliation(s)
- Şahin Kaan Baydemir
- Ankara University School of Medicine, Department of Obstetrics and Gynecology, Ankara, Turkey
| | - Yavuz Emre Sukur
- Ankara University School of Medicine, Department of Obstetrics and Gynecology, Ankara, Turkey
| | - Nur Ersan
- Ankara University School of Medicine, Department of Obstetrics and Gynecology, Ankara, Turkey
| | - Ozlem Dogan
- Ankara University School of Medicine, Department of Biochemistry, Ankara, Turkey
| | - Cem Somer Atabekoglu
- Ankara University School of Medicine, Department of Obstetrics and Gynecology, Ankara, Turkey
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Agtas-Ertan E, Dogan O, Ilhan I. Ghrelin and impulsivity relationship in alcohol-dependent patients and healthy individuals. Alcohol Alcohol 2023; 58:497-504. [PMID: 37154613 DOI: 10.1093/alcalc/agad032] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 05/10/2023] Open
Abstract
AIMS Abundant research indicates that ghrelin hormone levels are associated with alcohol use and addiction. One of the mediators of this association may be impulsivity, which is one of the common traits observed in alcohol addiction and some eating disorders. This study evaluated participants with alcohol dependency and healthy volunteers to determine whether trait impulsivity and ghrelin levels are associated. METHODS This study analyzed trait impulsivity scores and fasting serum ghrelin levels of 44 males with alcohol dependency and 48 healthy male participants. The Barratt Impulsiveness Scale and the UPPS Impulsive Behaviour Scale (UPPS) were used to measure trait impulsivity levels. Penn Alcohol Craving Scale and Yale Brown Obsessive Compulsive Drinking Scale for heavy drinking were used to assess craving at the baseline and after the detoxification period. RESULTS Alcohol-dependent patients' fasting ghrelin levels were significantly higher than that of healthy participants. Ghrelin plasma levels were positively correlated with UPPS total impulsivity scores and sensation-seeking among healthy individuals. In alcohol-dependent participants, there was a positive correlation between UPPS urgency scores obtained at the baseline and fasting ghrelin levels before and after the detoxification period. CONCLUSIONS Ghrelin-impulsivity relationship could be observed in certain dimensions of impulsivity in both alcohol-dependent and healthy individuals and even independent of the effect of alcohol. Although the associated impulsivity dimensions differ in different groups, the results are parallel to other studies in terms of demonstrating the relationship between ghrelin and impulsivity.
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Affiliation(s)
- Ece Agtas-Ertan
- Department of Psychiatry, Yozgat City Hospital, Yozgat 66100, Turkey
| | - Ozlem Dogan
- Department of Biochemistry, Ankara University Cebeci Hospital, Tip Fakultesi Cad., Ankara 06620, Turkey
| | - Inci Ilhan
- Department of Psychiatry, Ankara University Cebeci Hospital, Tip Fakultesi Cad., Ankara 06620, Turkey
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Dogan O. Are ABO/Rh blood groups A risk factor for polycystic ovary syndrome? Medicine (Baltimore) 2023; 102:e34944. [PMID: 37682192 PMCID: PMC10489203 DOI: 10.1097/md.0000000000034944] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 08/04/2023] [Indexed: 09/09/2023] Open
Abstract
This study goaled to evaluate the ABO/Rh blood group distribution and its relationship with clinical and biochemical factors in polycystic ovary syndrome (PCOS) patients. ABO/Rh blood group distribution of the patients and the healthy individuals were compared. In addition, the features of clinical and biochemical factors were compared according to the ABO/Rh blood groups. Two hundred and sixty-five patients were involved in the study. At the time of diagnosis, hirsutism (86%) and oligomenorrhea (80.9%) were the most prevalent symptoms. There were 166 (62.6%) patients with baseline ultrasonography results consistent with PCOS. In 111 (41.9%) patients, insulin resistance was found. ABO blood group distributions in the patient (42.6% A, 17% B, 9.4% AB, 30.9% O) and control (42% A, 16% B, 8% AB, 34% O) groups were found to be similar (P = .9). There was no difference between oligomenorrhea, hirsutism, hair loss, acne, obesity, high androgen level, insulin resistance, and ultrasound characteristics according to ABO/Rh blood groups. In this study, ABO/Rh blood group distribution in individuals with PCOS was found to be similar to healthy individuals, and it was determined that ABO/Rh blood group was not a risk factor for PCOS. In addition, no correlation was found between the clinical and biochemical characteristics of the patients at the time of diagnosis and the ABO/Rh blood group.
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Affiliation(s)
- Ozlem Dogan
- Health Sciences University, Haseki Training and Research Hospital, Department of Endocrinology, Fatih, Istanbul, Turkey
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Dogan O. Evaluation of ABO/Rh blood group distributions in papillary thyroid cancer patients. Medicine (Baltimore) 2023; 102:e34564. [PMID: 37565904 PMCID: PMC10419498 DOI: 10.1097/md.0000000000034564] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 07/12/2023] [Indexed: 08/12/2023] Open
Abstract
The study aimed to evaluate the ABO/Rh blood group distributions and their relationship with clinical-pathological features in papillary thyroid cancer patients. It was planned as a retrospective case-controlled study. The blood group distributions of the patients were contrasted with that of the general population. Additionally, the association between clinical-pathological variables and blood group distribution was assessed. Two hundred and ninety-three patients were involved in the study. The median age was 48 years, and the majority of patients were female (84.3%). The most common variants of papillary thyroid cancer were follicular, classical, and oncocytic. The majority of the patients had stage 1 (91.1%) disease at the time of diagnosis. ABO blood group distributions in the patient (47.4% A, 11.9% B, 8.2% AB, 32.4% O) and control (42% A, 16% B, 8% AB, 34% O) groups were found to be similar ( P = .8). In terms of Rh factor, there was a comparable distribution for the characteristics of the patient and healthy control group ( P = .6). There was no association between clinical and pathological variables and blood group distributions (gender, age, tumor stage, tumor location, and pathological tumor variant). Comparing patients with papillary thyroid carcinoma to the healthy control group, the prevalence of the A blood group numerically increased while the prevalence of the B blood group numerically decreased, but it was not statistically significant. In addition, ABO/Rh blood type and clinical and pathological variables did not relate.
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Affiliation(s)
- Ozlem Dogan
- Health Sciences University, Haseki Training and Research Hospital, Department of Endocrinology, Fatih, Istanbul, Turkey
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Dogan O, Bulat Z, Yildiz A, Abaci O, Barman HA, Kılıçarslan O, Yumuk MT, Mirzayev K, Kocas C. Comparison of clopidogrel vs. ticagrelor medication adherence in patients with acute coronary syndrome. Eur Rev Med Pharmacol Sci 2023; 27:7309-7315. [PMID: 37606139 DOI: 10.26355/eurrev_202308_33302] [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: 08/23/2023]
Abstract
OBJECTIVE Medication nonadherence to dual antiplatelet therapy increases major cardiovascular events. In this study, we investigated patients' post-acute coronary syndrome (ACS) medication adherence to clopidogrel and ticagrelor over a 12-month period. Furthermore, we also examined the factors that may affect medication adherence in this patient population. PATIENTS AND METHODS This study included 509 patients who were scheduled for dual antiplatelet therapy for one year following ACS (October 2018-December 2019). A proportion of days covered (PDC) method, based on a pharmacy database system, was used to determine their medication adherence. Medication adherence was defined as > 80% PDC. RESULTS No difference was found between clopidogrel and ticagrelor in terms of medication adherence (68.3% vs. 64.6%, p = 0.39). Moreover, higher education levels (B = 3.24, CI: 1.17-8.9, p = 0.023) and percutaneous coronary intervention (PCI) as a revascularization option (B = 0.35, CI: 0.17-0.71, p = 0.004) predicted medication adherence independently. CONCLUSIONS In this research, medication adherence was found to be similar between the clopidogrel and ticagrelor groups. It was also predicted by higher education levels and revascularization with PCI.
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Affiliation(s)
- O Dogan
- Department of Cardiology, Istinye State Hospital, Ministry of Health, Istanbul, Turkey.
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Ozyıldırım S, Barman HA, Dogan O, Atici A, Mirzayev K, Ebeoglu AO, Yumuk MT, Ikitimur B, Dogan SM, Enar R. The effects of Digoxin use on long-term prognosis in patients with heart failure with reduced ejection fraction. Eur Rev Med Pharmacol Sci 2023; 27:7226-7234. [PMID: 37606130 DOI: 10.26355/eurrev_202308_33294] [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: 08/23/2023]
Abstract
OBJECTIVE This study aimed to investigate the effect of digoxin on mortality and rehospitalization in heart failure with reduced ejection fraction (HFrEF) patients. Heart failure is a clinical syndrome that requires frequent rehospitalization and has a high mortality. This study aimed to investigate the effect of digoxin on mortality and rehospitalization in patients with heart failure with reduced ejection fraction. PATIENTS AND METHODS The study included 326 patients with HFrEF that were hospitalized for decompensation between September 2014 and January 2016. The patients were divided into two groups: digoxin users and a control group. The study's endpoints were cardiovascular death and rehospitalization after 24-month long-term follow-ups. RESULTS Rehospitalization was lower in patients taking digoxin (25% vs. 47%, p = 0.001). The mean age of patients taking digoxin (n: 78) was 63.7 ± 12.4 years, among which 64% were males. The mean age of the control group was 65.4 ± 11.8 years, among which 74% were males. However, there was no difference in mortality between the two groups (34% vs. 45%, p = 0.10). While Kaplan-Meier curves revealed no significant differences between mortality rates in the groups (log-rank p = 0.508), a statistical difference was found between the groups in rehospitalization rates (log-rank p = 0.013). A multiple linear regression analysis revealed that smoking (HR: 1.97, CI: 1.24-3.11, p = 0.004), systolic blood pressure (HR: 0.983, CI: 0.974-0.992, p < 0.001), atrial fibrillation (HR: 2.09, CI: 1.17-3.72, p = 0.012), C-reactive protein (CRP) (HR: 1.009, CI: 1.003-1.015, p = 0.004), beta-blockers (HR: 0.891, CI: 0.799-0.972, p = 0.009), angiotensin-converting enzyme inhibitors/angiotensin receptor blockers (HR: 0.778, CI: 0.641-0.956, p < 0.001), mineralocorticoid receptor antagonists (HR: 0.41, CI:0.26-0.65, p < 0.001), and digoxin use (HR: 0.59, CI: 0.43-0.80, p = 0.001) are independent predictors of rehospitalization in patients with HFrEF. CONCLUSIONS Our results show that digoxin use does not affect mortality in HFrEF patients. However, rehospitalization decreased in patients taking digoxin in HFrEF.
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Affiliation(s)
- S Ozyıldırım
- Department of Cardiology, Istanbul University-Cerrahpaşa, Institute of Cardiology, Istanbul, Turkey.
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Duzkopru Y, Cilbir E, Imamoglu GI, Dogan O, Eren T. Second-line Chemotherapy in Advanced Gastric Cancer: Taxanes <em>versus</em> 5-FU-Based Treatment. J Coll Physicians Surg Pak 2023; 33:770-774. [PMID: 37401218 DOI: 10.29271/jcpsp.2023.07.770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 06/07/2023] [Indexed: 07/05/2023]
Abstract
OBJECTIVE To determine the comparative efficacy of taxane-based treatment and 5-FU-based treatment as second-line chemotherapy regimens in advanced gastric cancer patients, as measured by overall survival (OS) and progression-free survival (PFS). STUDY DESIGN Observational study. Place and Duration of the Study: Department of Medical Oncology, Health Science University Diskapi Yildirim Beyazit Training and Research Hospital, Ankara, Turkiye, from January 2008 and December 2020. METHODOLOGY Patients aged 18 years and older, diagnosed with gastric cancer, who received at least one line chemotherapy were included. Patients who received FOLFIRI, FOLFOX, and capecitabine in the second-line therapy were grouped as those who received 5-FU-based treatment, while those who received docetaxel and paclitaxel were grouped as those who received taxan-based treatment. The primary outcome measures, OS and PFS, were assessed and compared between the treatment groups using the Kaplan-Meier method. RESULTS A total of 172 patients were included in this analysis, among whom 73 (42.4%) received second-line chemotherapy. Among the patients who received the second-line treatment, 50 (68.5%) were males. The median age of the cohort was 60 years (23-86), with 37 (50.7%) patients falling into the <60 age group. The overall response rates (ORR) were 8% (2/25) in the taxane group and 16.7% (8/48) in the 5-FU-based treatment group. The median overall survival (OS) for all patients receiving second-line therapy was 7.52 months (standard error: 0.97; 95% confidence interval [CI]: 5.62-9.43). Specifically, the median OS was 5.16 months (standard error: 1.07; 95% CI: 3.07-7.25) in the taxane group and 8.02 months (standard error: 1.40; 95% CI: 5.28-10.75) in the group receiving 5-FU-based therapy (p=0.11). CONCLUSION The superiority of chemotherapy regimens to each other could not be demonstrated. However, the second-line treatment demonstrated clear superiority over the best supportive care. Therefore, it is recommended that all patients with good performance status (PS) should be offered second-line treatment. KEY WORDS Gastric cancer, Second-line chemotherapy, Taxanes, Treatment efficacy, 5-Fluorouracil.
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Affiliation(s)
- Yakup Duzkopru
- Department of Medical Oncology, Health Sciences University Diskapi Yildirim Beyazit Training and Research Hospital, Medical Oncology, Ankara, Turkiye
| | - Ebru Cilbir
- Department of Medical Oncology, Health Sciences University Diskapi Yildirim Beyazit Training and Research Hospital, Medical Oncology, Ankara, Turkiye
| | - Goksen Inanc Imamoglu
- Department of Medical Oncology, Health Sciences University Diskapi Yildirim Beyazit Training and Research Hospital, Medical Oncology, Ankara, Turkiye
| | - Ozlem Dogan
- Department of Medical Oncology, Health Sciences University Diskapi Yildirim Beyazit Training and Research Hospital, Medical Oncology, Ankara, Turkiye
| | - Tulay Eren
- Department of Medical Oncology, Health Sciences University Diskapi Yildirim Beyazit Training and Research Hospital, Medical Oncology, Ankara, Turkiye
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Jahanmard F, Khodaei A, Flapper J, Dogan O, Roohi K, Taheri P, Weinans H, Storm G, Croes M, Mastrobattista E, Yavari SA. Osteoimmunomodulatory GelMA/liposome coatings to promote bone regeneration of orthopedic implants. J Control Release 2023; 358:667-680. [PMID: 37207794 DOI: 10.1016/j.jconrel.2023.05.022] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 04/04/2023] [Accepted: 05/15/2023] [Indexed: 05/21/2023]
Abstract
Despite being the most widely used biomaterials in orthopedic surgery, metallic implants do not induce new bone growth because they are bioinert. Surface biofunctionalization of implants with immunomodulatory mediators is a recent approach to promote osteogenic factors that facilitate bone regeneration. Liposomes (Lip) can be used as a low-cost, efficient and simple immunomodulator to stimulate immune cells in favor of bone regeneration. Even though liposomal coating systems have been reported previously, their main disadvantage is their limited ability to preserve liposome integrity after drying. In order to address this issue, we developed a hybrid system in which liposomes could be embedded in a polymeric hydrogel namely gelatin methacryloyl (GelMA). Specifically, we have developed a novel versatile coating strategy using electrospray technology to coat implants with GelMA/Liposome without using adhesive intermediate layer. The two differently charged Lip (i.e., anionic and cationic) were blended with GelMA and coated via electrospray technology on the bone-implant surfaces. The results showed that the developed coating withstood mechanical stress during surgical replacement, and Lip inside GelMA coating stayed intact in different storage conditions for a minimum of 4 weeks. Surprisingly, bare Lip, either cationic or anionic, improved the osteogenesis of human Mesenchymal Stem Cells (MSCs) by inducing pro-inflammatory cytokines, even at a low dosage of Lip released from the GelMA coating. More importantly, we showed that the inflammatory response could be fine-tuned by selecting the Lip concentration, Lip/hydrogel ratio, and coating thickness to determine the timing of the release such that we can accommodate different clinical needs. These promising results pave the way to use these Lip coatings to load different types of therapeutic cargo for bone-implant applications.
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Affiliation(s)
- F Jahanmard
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, the Netherlands; Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - A Khodaei
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - J Flapper
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, the Netherlands; Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - O Dogan
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, the Netherlands; Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - K Roohi
- Department of Materials Engineering, Delft University of Technology, Delft, the Netherlands
| | - P Taheri
- Department of Materials Engineering, Delft University of Technology, Delft, the Netherlands
| | - H Weinans
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - G Storm
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, the Netherlands
| | - M Croes
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands
| | - E Mastrobattista
- Department of Pharmaceutics, Utrecht Institute for Pharmaceutical Sciences (UIPS), Utrecht University, Utrecht, the Netherlands.
| | - S Amin Yavari
- Department of Orthopedics, University Medical Center Utrecht, Utrecht, the Netherlands; Regenerative Medicine Utrecht, Utrecht University, Utrecht, the Netherlands
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Kahraman S, Erul E, Seyyar M, Gumusay O, Bayram E, Demirel BC, Acar O, Aksoy S, Baytemur NK, Sahin E, Cabuk D, Basaran G, Paydas S, Yaren A, Guven DC, Erdogan AP, Demirci U, Yasar A, Bayoglu İV, Hizal M, Gulbagci B, Paksoy N, Davarci SE, Yilmaz F, Dogan O, Orhan SO, Kayikcioglu E, Aytac A, Keskinkilic M, Mocan EE, Unal OU, Aydin E, Yucel H, Isik D, Eren O, Uluc BO, Ozcelik M, Hacibekiroglu I, Aydiner A, Demir H, Oksuzoglu B, Cilbir E, Cubukcu E, Cetin B, Oktay E, Erol C, Okutur SK, Yildirim N, Alkan A, Selcukbiricik F, Aksoy A, Karakas Y, Ozkanli G, Duman BB, Aydin D, Dulgar O, Er MM, Teker F, Yavuzsen T, Aykan MB, Inal A, Iriagac Y, Kalkan NO, Keser M, Sakalar T, Menekse S, Kut E, Bilgin B, Karaoglanoglu M, Sunar V, Ozdemir O, Turhal NS, Karadurmus N, Yalcin B, Nahit Sendur MA. Treatment efficacy of ribociclib or palbociclib plus letrozole in hormone receptor-positive/HER2-negative metastatic breast cancer. Future Oncol 2023; 19:727-736. [PMID: 37133230 DOI: 10.2217/fon-2022-1287] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023] Open
Abstract
Background: Ribociclib, palbociclib and abemaciclib are currently approved CDK4/6 inhibitors along with aromatase inhibitors as the first-line standard-of-care for patients with hormone receptor-positive, HER2-negative metastatic breast cancer. Methods: The authors report retrospective real-life data for 600 patients with estrogen receptor- and/or progesterone receptor-positive and HER2-negative metastatic breast cancer who were treated with ribociclib and palbociclib in combination with letrozole. Results & conclusion: The results demonstrated that the combination of palbociclib or ribociclib with letrozole has similar progression-free survival and overall survival benefit in real life for the patient group with similar clinical features. Specifically, endocrine sensitivity may be a factor to be considered in the treatment preference.
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Affiliation(s)
- Seda Kahraman
- Department of Medical Oncology, Ankara Yildirim Beyazit University, Ankara City Hospital, Ankara, 06800, Turkey
| | - Enes Erul
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, 06590, Turkey
| | - Mustafa Seyyar
- Department of Medical Oncology, Kocaeli University Medical Faculty Hospital, Kocaeli, 41000, Turkey
| | - Ozge Gumusay
- Department of Medical Oncology, Acibadem University, School of Medicine, Istanbul, 34750, Turkey
| | - Ertugrul Bayram
- Department of Medical Oncology, Cukurova University, Adana, 01330, Turkey
| | - Burcin Cakan Demirel
- Department of Medical Oncology, Pamukkale University Hospital, Denizli, 20160, Turkey
| | - Omer Acar
- Department of Medical Oncology, Manisa Celal Bayar University Hospital, Mersin, 45120, Turkey
| | - Sercan Aksoy
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, 06590, Turkey
| | | | - Elif Sahin
- Department of Medical Oncology, Kocaeli University Medical Faculty Hospital, Kocaeli, 41000, Turkey
| | - Devrim Cabuk
- Department of Medical Oncology, Kocaeli University Medical Faculty Hospital, Kocaeli, 41000, Turkey
| | - Gul Basaran
- Department of Medical Oncology, Acibadem University, School of Medicine, Istanbul, 34750, Turkey
| | - Semra Paydas
- Department of Medical Oncology, Cukurova University, Adana, 01330, Turkey
| | - Arzu Yaren
- Department of Medical Oncology, Pamukkale University Hospital, Denizli, 20160, Turkey
| | - Deniz Can Guven
- Department of Medical Oncology, Hacettepe University Cancer Institute, Ankara, 06590, Turkey
| | - Atike Pinar Erdogan
- Department of Medical Oncology, Manisa Celal Bayar University Hospital, Mersin, 45120, Turkey
| | - Umut Demirci
- Department of Medical Oncology, Ankara Memorial Hospital, Ankara, 06520, Turkey
| | - Alper Yasar
- Department of Medical Oncology, Marmara University Pendik Research & Application Hospital, Istanbul, 34899, Turkey
| | - İbrahim Vedat Bayoglu
- Department of Medical Oncology, Marmara University Pendik Research & Application Hospital, Istanbul, 34899, Turkey
| | - Mutlu Hizal
- Department of Medical Oncology, Ankara Yildirim Beyazit University, Ankara City Hospital, Ankara, 06800, Turkey
| | - Burcu Gulbagci
- Department of Medical Oncology, Sakarya University School of Medicine, Sakarya, 54187, Turkey
| | - Nail Paksoy
- Department of Medical Oncology, Istanbul University, Istanbul, 34093, Turkey
| | - Sena Ece Davarci
- Department of Medical Oncology, Afyonkarahisar Health Sciences University, Afyonkarahisar, 03200, Turkey
| | - Funda Yilmaz
- Department of Medical Oncology, Dr. Abdurrahman Yurtaslan Ankara Oncology Training & Research Hospital, Ankara, 06200, Turkey
| | - Ozlem Dogan
- Department of Medical Oncology, Ankara Etlik City Hospital, Ankara, 06170, Turkey
| | - Sibel Oyucu Orhan
- Department of Medical Oncology, Uludag University, Bursa, 16059, Turkey
| | - Erkan Kayikcioglu
- Department of Medical Oncology, Suleyman Demirel University, Isparta, 32260, Turkey
| | - Ali Aytac
- Department of Medical Oncology, Aydin Adnan Menderes University Training & Research Hospital, Aydin, 09100, Turkey
| | - Merve Keskinkilic
- Department of Medical Oncology, Dokuz Eylül University Research & Application Hospital, Izmir, 35340, Turkey
| | - Eda Eylemer Mocan
- Department Of Medical Oncology, Ankara University, Ankara, 06080, Turkey
| | - Olcun Umit Unal
- Department of Medical Oncology, Tepecik Training & Research Hospital, Izmir, 35180, Turkey
| | - Esra Aydin
- Department of Medical Oncology, Recep Tayyip Erdoğan University Training & Research Hospital, Rize, 53020, Turkey
| | - Hakan Yucel
- Department of Medical Oncology, Gaziantep University, Gaziantep, 27580, Turkey
| | - Deniz Isik
- Department of Medical Oncology, Kocaeli Medical Park Hospital, Kocaeli, 41140, Turkey
| | - Onder Eren
- Department of Medical Oncology, Selcuk University Medical Faculty Hospital, Konya, 42250, Turkey
| | - Basak Oyan Uluc
- Department of Medical Oncology, Acibadem University, School of Medicine, Istanbul, 34750, Turkey
| | - Melike Ozcelik
- Department of Medical Oncology, Umraniye Training & Research Hospital, Istanbul, 34764, Turkey
| | - Ilhan Hacibekiroglu
- Department of Medical Oncology, Sakarya University School of Medicine, Sakarya, 54187, Turkey
| | - Adnan Aydiner
- Department of Medical Oncology, Istanbul University, Istanbul, 34093, Turkey
| | - Hacer Demir
- Department of Medical Oncology, Afyonkarahisar Health Sciences University, Afyonkarahisar, 03200, Turkey
| | - Berna Oksuzoglu
- Department of Medical Oncology, Dr. Abdurrahman Yurtaslan Ankara Oncology Training & Research Hospital, Ankara, 06200, Turkey
| | - Ebru Cilbir
- Department of Medical Oncology, Ankara Etlik City Hospital, Ankara, 06170, Turkey
| | - Erdem Cubukcu
- Department of Medical Oncology, Uludag University, Bursa, 16059, Turkey
| | - Bulent Cetin
- Department of Medical Oncology, Suleyman Demirel University, Isparta, 32260, Turkey
| | - Esin Oktay
- Department of Medical Oncology, Aydin Adnan Menderes University Training & Research Hospital, Aydin, 09100, Turkey
| | - Cihan Erol
- Department of Medical Oncology, Ankara Yildirim Beyazit University, Ankara City Hospital, Ankara, 06800, Turkey
| | - Sadi Kerem Okutur
- Department of Medical Oncology, Istanbul Arel University, Bahcelievler Memorial Hospital, Istanbul, 34537, Turkey
| | - Nilgun Yildirim
- Department of Medical Oncology, Firat University Hospital, Elazig, 23200, Turkey
| | - Ali Alkan
- Department of Medical Oncology, Muğla Sıtkı Koçman University Training & Research Hospital, Mugla, 48000, Turkey
| | - Fatih Selcukbiricik
- Department of Medical Oncology, Koç University Hospital, Istanbul, 34010, Turkey
| | - Asude Aksoy
- Department of Medical Oncology, Elazig Fethi Sekin City Hospital, Elazig, 23280, Turkey
| | - Yusuf Karakas
- Department of Medical Oncology, Acıbadem Bodrum Hospital, Mugla, 48420, Turkey
| | - Gulhan Ozkanli
- Department of Medical Oncology, Canakkale Onsekiz Mart University Research & Practice Hospital, Canakkale, 17100, Turkey
| | - Berna Bozkurt Duman
- Department of Medical Oncology, Adana City Training & Research Hospital, Adana, 01230, Turkey
| | - Dincer Aydin
- Department of Medical Oncology, Kocaeli Derince Training & Research Hospital, Kocaeli, 41310, Turkey
| | - Ozgecan Dulgar
- Department of Medical Oncology, Kahramanmaras Necip Fazil City Hospital, Kahramanmaras, 46050, Turkey
| | - Muhammed Muhiddin Er
- Department of Medical Oncology, Necmettin Erbakan University Meram Medical Faculty Hospital, Konya, 42080, Turkey
| | - Fatih Teker
- Department of Medical Oncology, Gaziantep University, Gaziantep, 27580, Turkey
| | - Tugba Yavuzsen
- Department of Medical Oncology, Dokuz Eylül University Research & Application Hospital, Izmir, 35340, Turkey
| | - Musa Baris Aykan
- Department of Medical Oncology, Gulhane Training & Research Hospital, Ankara, 06010, Turkey
| | - Ali Inal
- Department of Medical Oncology, Mersin City Hospital, Mersin, 96015, Turkey
| | - Yakup Iriagac
- Department of Medical Oncology, Namik Kemal University Health Application & Research Hospital, Tekirdag, 59030, Turkey
| | - Nurhan Onal Kalkan
- Department of Medical Oncology, Van Yüzüncü Yıl University Dursun Odabas Hospital, Van, 65090, Turkey
| | - Murat Keser
- Department of Medical Oncology, Tepecik Training & Research Hospital, Izmir, 35180, Turkey
| | - Teoman Sakalar
- Department of Medical Oncology, Kahramanmaras Necip Fazil City Hospital, Kahramanmaras, 46050, Turkey
| | - Serkan Menekse
- Department of Medical Oncology, Manisa City Hospital, Manisa, 45040, Turkey
| | - Engin Kut
- Department of Medical Oncology, Manisa City Hospital, Manisa, 45040, Turkey
| | - Burak Bilgin
- Department of Medical Oncology, Konya City Hospital, Konya, 42020, Turkey
| | - Muge Karaoglanoglu
- Department of Medical Oncology, Ordu State Hospital, Ordu, 52200, Turkey
| | - Veli Sunar
- Department of Medical Oncology, Aydin Ataturk State Hospital, Aydin, 09020, Turkey
| | - Ozlem Ozdemir
- Department of Medical Oncology, Izmir Bozyaka Training & Research Hospital, Izmir, 35170, Turkey
| | - Nazim Serdar Turhal
- Department of Medical Oncology, Anadolu Medical Center, Istanbul, 34758, Turkey
| | - Nuri Karadurmus
- Department of Medical Oncology, Gulhane Training & Research Hospital, Ankara, 06010, Turkey
| | - Bulent Yalcin
- Department of Medical Oncology, Ankara Yildirim Beyazit University, Ankara City Hospital, Ankara, 06800, Turkey
| | - Mehmet Ali Nahit Sendur
- Department of Medical Oncology, Ankara Yildirim Beyazit University, Ankara City Hospital, Ankara, 06800, Turkey
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Celik E, Ozcan G, Vatansever C, Paerhati E, Kuşkucu MA, Dogan O, Cekic SG, Ergonul O, Gürsoy A, Keskin Ö, Can F. Alterations in vaginal microbiota among pregnant women with COVID-19. J Med Virol 2023; 95:e28132. [PMID: 36068653 PMCID: PMC9538183 DOI: 10.1002/jmv.28132] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 09/01/2022] [Accepted: 09/04/2022] [Indexed: 01/11/2023]
Abstract
The maintenance of vaginal microbiota is an important factor to achieve optimum pregnancy outcomes. The study aims to describe the alterations in the composition of vaginal microbiota in pregnant women with coronavirus disease 2019 (COVID-19). This was a prospective case-control study. Vaginal swabs were collected from uninfected pregnant women (n = 28) and pregnant women with COVID-19 (n = 19) during the active phase of infection and within a month after recovering from infection. The vaginal microbiota on the swabs was examined by 16S rRNA gene sequencing. Shannon index indicates that alpha diversity is significantly higher in women with COVID-19 (p = 0.012). There was a significant decrease in Firmicutes (p = 0.014) with an increase in Bacteroidota (p = 0.018) phyla and a decrease in Lactobacillus (p = 0.007) genus in women with COVID-19 than those of uninfected pregnant women. The relative abundance of L. crispatus, L. iners, L. gasseri, and L. jensenii were lower in the COVID-19 group than in uninfected pregnant women. In subgroup analysis, the amount of Ureaplasma spp. was higher in women with moderate/severe than those of asymptomatic/mild disease (p = 0.036). The study revealed that vaginal dysbiosis with low abundance of Lactobacillus species occurred in pregnant women infected with severe acute respiratory syndrome coronavirus-2. These findings may lead to new studies to elucidate the risk of pregnancy adverse outcomes related to COVID-19.
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Affiliation(s)
- Ebru Celik
- Department of Obstetrics and Gynecology, School of MedicineKoc UniversityIstanbulTurkey
| | - Gulin Ozcan
- Department of Medical Microbiology, School of MedicineKoc UniversityIstanbulTurkey
- Koç University İşBank Research Center for İnfectious Diseases (KUISCID)IstanbulTurkey
| | - Cansel Vatansever
- Department of Medical Microbiology, School of MedicineKoc UniversityIstanbulTurkey
- Koç University İşBank Research Center for İnfectious Diseases (KUISCID)IstanbulTurkey
| | | | - Mert A. Kuşkucu
- Koç University İşBank Research Center for İnfectious Diseases (KUISCID)IstanbulTurkey
- Medical MicrobiologyCerrahpaşa Medical School of Istanbul University‐CerrahpaşaIstanbulTurkey
| | - Ozlem Dogan
- Department of Medical Microbiology, School of MedicineKoc UniversityIstanbulTurkey
- Koç University İşBank Research Center for İnfectious Diseases (KUISCID)IstanbulTurkey
| | - Sebile Guler Cekic
- Department of Obstetrics and Gynecology, School of MedicineKoc UniversityIstanbulTurkey
| | - Onder Ergonul
- Koç University İşBank Research Center for İnfectious Diseases (KUISCID)IstanbulTurkey
- Department of Infectious Diseases and Clinical Microbiology, School of MedicineKoç UniversityIstanbulTurkey
| | | | - Özlem Keskin
- College of EngineeringKoç UniversityIstanbulTurkey
| | - Fusun Can
- Department of Medical Microbiology, School of MedicineKoc UniversityIstanbulTurkey
- Koç University İşBank Research Center for İnfectious Diseases (KUISCID)IstanbulTurkey
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14
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Kayabolen A, Akcan U, Özturan D, Ulbegi‐Polat H, Sahin GN, Pinarbasi‐Degirmenci N, Bayraktar C, Soyler G, Sarayloo E, Nurtop E, Ozer B, Guney‐Esken G, Barlas T, Yildirim IS, Dogan O, Karahuseyinoglu S, Lack NA, Kaya M, Albayrak C, Can F, Solaroglu I, Bagci‐Onder T. Protein Scaffold-Based Multimerization of Soluble ACE2 Efficiently Blocks SARS-CoV-2 Infection In Vitro and In Vivo. Adv Sci (Weinh) 2022; 9:e2201294. [PMID: 35896894 PMCID: PMC9353362 DOI: 10.1002/advs.202201294] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Soluble ACE2 (sACE2) decoys are promising agents to inhibit SARS-CoV-2, as their efficiency is unlikely to be affected by escape mutations. However, their success is limited by their relatively poor potency. To address this challenge, multimeric sACE2 consisting of SunTag or MoonTag systems is developed. These systems are extremely effective in neutralizing SARS-CoV-2 in pseudoviral systems and in clinical isolates, perform better than the dimeric or trimeric sACE2, and exhibit greater than 100-fold neutralization efficiency, compared to monomeric sACE2. SunTag or MoonTag fused to a more potent sACE2 (v1) achieves a sub-nanomolar IC50 , comparable with clinical monoclonal antibodies. Pseudoviruses bearing mutations for variants of concern, including delta and omicron, are also neutralized efficiently with multimeric sACE2. Finally, therapeutic treatment of sACE2(v1)-MoonTag provides protection against SARS-CoV-2 infection in an in vivo mouse model. Therefore, highly potent multimeric sACE2 may offer a promising treatment approach against SARS-CoV-2 infections.
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Affiliation(s)
- Alisan Kayabolen
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
| | - Ugur Akcan
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
| | - Doğancan Özturan
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
| | - Hivda Ulbegi‐Polat
- Genetic Engineering and Biotechnology InstituteTUBITAK Marmara Research CenterKocaeli41470Turkey
| | - Gizem Nur Sahin
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
| | | | - Canan Bayraktar
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
| | - Gizem Soyler
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
| | - Ehsan Sarayloo
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
- Department of BiotechnologyBeykoz Institute of Life Sciences and Biotechnology (BILSAB)Bezmialem Vakif UniversityIstanbul34820Turkey
| | - Elif Nurtop
- Koç University Isbank Center for Infectious Diseases (KUISCID)Istanbul34010Turkey
| | - Berna Ozer
- Koç University Isbank Center for Infectious Diseases (KUISCID)Istanbul34010Turkey
| | - Gulen Guney‐Esken
- Koç University Isbank Center for Infectious Diseases (KUISCID)Istanbul34010Turkey
| | - Tayfun Barlas
- Koç University Isbank Center for Infectious Diseases (KUISCID)Istanbul34010Turkey
| | - Ismail Selim Yildirim
- Genetic Engineering and Biotechnology InstituteTUBITAK Marmara Research CenterKocaeli41470Turkey
| | - Ozlem Dogan
- Koç University Isbank Center for Infectious Diseases (KUISCID)Istanbul34010Turkey
- Koç University School of MedicineDepartment of Medical MicrobiologyIstanbul34010Turkey
| | - Sercin Karahuseyinoglu
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
- Koç University School of Medicine, Department of Histology and EmbryologyIstanbul34450Türkiye
| | - Nathan A. Lack
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
- Vancouver Prostate CentreUniversity of British ColumbiaVancouverBC V6H 3Z6Canada
| | - Mehmet Kaya
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
| | - Cem Albayrak
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
- Department of BiotechnologyBeykoz Institute of Life Sciences and Biotechnology (BILSAB)Bezmialem Vakif UniversityIstanbul34820Turkey
| | - Fusun Can
- Koç University Isbank Center for Infectious Diseases (KUISCID)Istanbul34010Turkey
- Koç University School of MedicineDepartment of Medical MicrobiologyIstanbul34010Turkey
| | - Ihsan Solaroglu
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
- Department of Basic SciencesLoma Linda UniversityLoma LindaCA92354USA
| | - Tugba Bagci‐Onder
- Koç University Research Center for Translational Medicine (KUTTAM)Koç UniversityIstanbul34450Turkey
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15
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Vatansever C, Ozer B, Atac N, Guler OU, Kilicoglu BK, Berkkan M, Baskurt D, Sever E, Dogan O, Can F. Efficacy of Amikacin and Meropenem on Colistin-Induced Klebsiella pneumoniae Persisters. Microb Drug Resist 2022; 28:765-772. [PMID: 35759379 DOI: 10.1089/mdr.2021.0207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Colistin-based antibiotic therapies have been recommended for the treatment of multidrug-resistant Klebsiella pneumoniae infections. During colistin treatment, persister cells that tolerate antibiotics may arise. Here we designed an in vitro study to assess the killing activity of colistin, meropenem, and amikacin on colistin-induced K. pneumoniae persisters in comparison with starvation-induced persisters. Colistin-induced persisters were generated under exposure to 10 × minimum inhibitory concentration dose of colistin, whereas starvation-induced persisters were produced by limitation of nutrients. In colistin-induced persisters, amikacin totally inhibited cell growth in 6 hours, whereas 98% of the cell population was inhibited by meropenem, and total eradication with meropenem was observed after 24 hours. Both antibiotics also inhibited metabolic activity >88%. The lack of killing effect under colistin exposure suggested to us that these cells could protect themselves from further colistin stress. There was no significant permeabilization change in the cellular membrane with all antibiotics. There was no killing effect on starvation-induced persister cells with the exposure to all antibiotics. In 6 hours, the metabolic activity of the persisters with meropenem and colistin increased 99% and 40%, respectively, whereas there was no increase with amikacin. The sustained inhibition with amikacin was an important finding for antipersister effect of amikacin. Amikacin had rapid and sustained antipersister activity on colistin-induced persister cells. During the colistin treatment of K. pneumoniae infection, the addition of amikacin to the regimen seems to be an effective approach to prevent a recurrence.
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Affiliation(s)
- Cansel Vatansever
- Department of Medical Microbiology, Koç University School of Medicine, Istanbul, Turkey.,Koç University-İşBank Center for Infectious Diseases (KUISCID), Istanbul, Turkey
| | - Berna Ozer
- Department of Medical Microbiology, Koç University School of Medicine, Istanbul, Turkey.,Koç University-İşBank Center for Infectious Diseases (KUISCID), Istanbul, Turkey
| | - Nazlı Atac
- Department of Medical Microbiology, Koç University School of Medicine, Istanbul, Turkey.,Koç University-İşBank Center for Infectious Diseases (KUISCID), Istanbul, Turkey
| | | | | | | | - Defne Baskurt
- Koç University, School of Medicine, Istanbul, Turkey
| | - Egemen Sever
- Koç University, School of Medicine, Istanbul, Turkey
| | - Ozlem Dogan
- Department of Medical Microbiology, Koç University School of Medicine, Istanbul, Turkey.,Koç University-İşBank Center for Infectious Diseases (KUISCID), Istanbul, Turkey
| | - Fusun Can
- Department of Medical Microbiology, Koç University School of Medicine, Istanbul, Turkey.,Koç University-İşBank Center for Infectious Diseases (KUISCID), Istanbul, Turkey
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Taş Ö, Kontbay T, Dogan O, Kose E, Berberoglu M, Siklar Z, Tumer L, Eminoglu FT. Correction: Does Metformin Treatment in Pediatric Population Cause Vitamin B12 Deficiency? Klin Padiatr 2022. [PMID: 35226927 DOI: 10.1055/a-1778-8698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Özen Taş
- Ankara University Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Tugba Kontbay
- Ankara University Faculty of Medicine, Pediatric Endocrinology, Ankara, Turkey
| | - Ozlem Dogan
- Ankara University Faculty of Medicine, Biochemistry, Ankara, Turkey
| | - Engin Kose
- Ankara University Faculty of Medicine, Pediatric Metabolism, Ankara, Turkey
| | - Merih Berberoglu
- Ankara University Faculty of Medicine, Pediatric Endocrinology, Ankara, Turkey
| | - Zeynep Siklar
- Ankara University Faculty of Medicine, Pediatric Endocrinology, Ankara, Turkey
| | - Leyla Tumer
- Gazi University Faculty of Medicine, Department of Pediatric Metabolic Diseases, Ankara, Turkey
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17
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Taş Ö, Kontbay T, Dogan O, Kose E, Berberoglu M, Siklar Z, Tumer L, Eminoglu FT. Correction: Does Metformin Treatment in Pediatric Population Cause Vitamin B12 Deficiency? Klin Padiatr 2022. [PMID: 35172352 DOI: 10.1055/a-1766-2824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Özen Taş
- Ankara University Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Tugba Kontbay
- Ankara University Faculty of Medicine, Pediatric Endocrinology, Ankara, Turkey
| | - Ozlem Dogan
- Ankara University Faculty of Medicine, Biochemistry, Ankara, Turkey
| | - Engin Kose
- Gazi University Faculty of Medicine, Department of Pediatric Metabolic Diseases, Ankara, Turkey
| | - Merih Berberoglu
- Ankara University Faculty of Medicine, Pediatric Endocrinology, Ankara, Turkey
| | - Zeynep Siklar
- Ankara University Faculty of Medicine, Pediatric Endocrinology, Ankara, Turkey
| | - Leyla Tumer
- Gazi University Faculty of Medicine, Department of Pediatric Metabolic Diseases, Ankara, Turkey
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18
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Taş Ö, Kontbay T, Dogan O, Kose E, Berberoglu M, Siklar Z, Tumer L, Eminoglu FT. Does Metformin Treatment in Pediatric Population Cause Vitamin B12 Deficiency? Klin Padiatr 2022; 234:221-227. [PMID: 35114702 DOI: 10.1055/a-1702-2614] [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] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND/AIM There have been no studies to date examining the effect of metformin treatment on vitamin B12 status in children and adolescents. In this prospective study, the effects of metformin on blood vitamin B12, serum methylmalonic acid (MMA), homocysteine and holo-transcobalamin-II (holo-TC-II) levels were assessed in pediatric age group. MATERIALS AND METHODS This prospective study was conducted at the Pediatric Endocrinology and Adolescent Department between January 2017 and March 2019. Metabolic syndrome and polycystic ovary syndrome diagnosed patients with insulin resistance and/or impaired glucose tolerance, patients with type 2 diabetes mellitus (DM) treated with metformin were enrolled in study. Blood vitamin B12, MMA, homocysteine, holo-TC-II levels and hemogram values were evaluated. RESULTS Twenty-four patients were enrolled in study. Among these, 15 (62.5%) were female. The mean age of patients was 13.7±2.3 (10-19) years. Sixteen patients were diagnosed with metabolic syndrome and 8 patients were type 2 DM. At 6-month follow-up of all patients, there was no statistically significant difference in terms of vitamin B12, homocysteine, MMA and holo-TC-II levels. A 0.6% decline in vitamin B12 levels were revealed. At 12-month follow-up of 11 patients (45.8%) (6 Type 2 DM, 5 metabolic syndrome), no statistically significant difference was determined in vitamin B12, homocysteine, MMA and holo-TC-II levels. There were 6% decline in vitamin B12 levels and 10.9% increase in homocysteine levels, 5.4% decrease was detected in holo-TC-II level. CONCLUSION Although no significant changes in the serum vitamin B12, homocysteine, MMA or holo-TC-II levels with metformin therapy were detected, long-term prospective studies with high-dose metformin treatment in pediatric population are needed to confirm our results.
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Affiliation(s)
- Özen Taş
- Ankara University Faculty of Medicine, Ankara University, Ankara, Turkey
| | - Tugba Kontbay
- Ankara University Faculty of Medicine, Pediatric Endocrinology, Ankara, Turkey
| | - Ozlem Dogan
- Ankara University Faculty of Medicine, Biochemistry, Ankara, Turkey
| | - Engin Kose
- Ankara University Faculty of Medicine, Pediatric Metabolism, Ankara, Turkey
| | - Merih Berberoglu
- Ankara University Faculty of Medicine, Pediatric Endocrinology, Ankara, Turkey
| | - Zeynep Siklar
- Ankara University Faculty of Medicine, Pediatric Endocrinology, Ankara, Turkey
| | - Leyla Tumer
- Ankara University Faculty of Medicine, Pediatric Metabolism, Ankara, Turkey
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Ucuz I, Ari A, Ozcan OO, Topaktas O, Sarraf M, Dogan O. Estimation of the Development of Depression and PTSD in Children Exposed to Sexual Abuse and Development of Decision Support Systems by Using Artificial Intelligence. J Child Sex Abus 2022; 31:73-85. [PMID: 33206583 DOI: 10.1080/10538712.2020.1841350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Revised: 09/30/2020] [Accepted: 10/05/2020] [Indexed: 06/11/2023]
Abstract
The most common diagnoses after childhood sexual abuse are Post-Traumatic Stress Disorder and depression. The aim of this study is to design a decision support system to help psychiatry physicians in the treatment of childhood sexual abuse. Computer aided decision support system (CADSS) based on ANN, which predicts the development of PTSD and Major Depressive Disorder, using different parameters of the act of abuse and patients was designed. The data of 149 girls and 21 boys who were victims of sexual abuse were included in the study. In the designed CADDS, the gender of the victim, the type of sexual abuse, the age of exposure, the duration until reporting, the time of abuse, the proximity of the abuser to the victim, number of sexual abuse, whether the child is exposed to threats and violence during the abuse, the person who reported the event, and the intelligence level of the victim are used as input parameters. The average accuracy values for all three designed systems were calculated as 99.2%. It has been shown that the system designed by using these data can be used safely in the psychiatric assessment process, in order to differentiate psychiatric diagnoses in the early post-abuse period.
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Affiliation(s)
| | - Ali Ari
- Inonu University, Malatya, Turkey
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20
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Yildirim AM, Koca AO, Beyan E, Dogan O, Karakaya S, Aksoz Z, Ertuğrul DT. Association of serum proprotein convertase Subtilisin/Kexin Type 9 (PCSK9) level with thyroid function disorders. Eur Rev Med Pharmacol Sci 2021; 25:5511-5517. [PMID: 34533801 DOI: 10.26355/eurrev_202109_26662] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE We aimed at demonstrating the effect of thyroid function status on proprotein convertase subtilisin kexin type 9 (PCSK9) and determining the effect of thyroid hormones on lipid metabolism by comparing the PCSK9 levels of patients with subclinical hypothyroidism, overt hypothyroidism, and hyperthyroidism. PATIENTS AND METHODS 124 patients with thyroid disorders, aged between 18 and 65 years, were included in this study. The participants were divided into 3 groups. Group 1 comprised 52 patients with subclinical hypothyroidism, Group 2 comprised 40 patients with overt hypothyroidism, and Group 3 comprised 32 patients with hyperthyroidism. In all of these groups, the thyroid-stimulating hormone (TSH), free triiodothyronine (fT3), free thyroxine (fT4), low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, triglyceride, total cholesterol, fasting serum glucose, antithyroid peroxidase antibody, antithyroglobulin antibody, and PCSK9 levels were measured. RESULTS No significant difference was found between the 3 groups in terms of age, gender, and body mass indices. Median PCSK9 measurements were 14.55 ng/mL in Group 1, 14.895 ng/mL in Group 2, and 9.775 ng/mL in Group 3. There was a significant difference in the PCSK9 levels between Group 1-Group 3 and Group 2-Group 3 (p <0.0001 and p <0.0001, respectively). A positive correlation between PCSK9 and the TSH levels (r = 0.211, p= 0.019), and a negative correlation (r = -0,239, p = 0.009 and r = -, 0.218, p = 0.015) between the fT3 and fT4 levels were found. CONCLUSIONS The serum PCSK9 levels were shown to be associated with thyroid dysfunction. However, no relationship was observed between the serum PCSK9 level and thyroid autoantibody positivity, and obesity in this study.
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Affiliation(s)
- A M Yildirim
- Department of Internal Medicine, University of Health Sciences, Malatya Training and Research Hospital, Malatya, Turkey.
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21
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Tanisali G, Sozak A, Bulut AS, Sander TZ, Dogan O, Dağ Ç, Gönen M, Can F, DeMirci H, Ergonul O. Effectiveness of different types of mask in aerosol dispersion in SARS-CoV-2 infection. Int J Infect Dis 2021; 109:310-314. [PMID: 34147668 PMCID: PMC8325008 DOI: 10.1016/j.ijid.2021.06.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/10/2021] [Accepted: 06/12/2021] [Indexed: 11/21/2022] Open
Abstract
Objective To compare the effectiveness of different mask types in limiting the dispersal of coughed air. Method The Schlieren method with a single curved mirror was used in this study. Coughed air has a slightly higher temperature than ambient air, which generates a refractive index gradient. A curved mirror with a radius of curvature of 10 m and a diameter of 60 cm was used. The spread of the cough wavefront was investigated among five subjects wearing: (1) no mask; (2) a single surgical mask; (3) a double surgical mask; (4) a cloth mask; (5) a valveless N95 mask; and (6) a valved N95 mask. Results All mask types reduced the size of the contaminated region significantly. The percentage reduction in the cross-sectional area of the contaminated region for the same mask types on different subjects revealed by normalized data suggests that the fit of a mask plays an important role. Conclusions No significant difference in the spread of coughed air was found between the use of a single surgical mask or a double surgical mask. Cloth masks may be effective, depending on the quality of the cloth. Valved N95 masks exclusively protect the user. The fit of a mask is an important factor to minimize the contaminated region.
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Affiliation(s)
- Gokhan Tanisali
- Department of Material Science and Engineering, Koç University, Istanbul, Turkey; Department of Molecular Biology and Genetics, Koç University, Istanbul, Turkey.
| | - Ahmet Sozak
- Microelectronics, Guidance and Electro-Optics Business Sector, Optical and Optomechanical Design Department, Aselsan Inc., Ankara, Turkey
| | - Abdul Samet Bulut
- Microelectronics, Guidance and Electro-Optics Business Sector, Optical and Optomechanical Design Department, Aselsan Inc., Ankara, Turkey
| | - Tolga Ziya Sander
- Microelectronics, Guidance and Electro-Optics Business Sector, Optical and Optomechanical Design Department, Aselsan Inc., Ankara, Turkey
| | - Ozlem Dogan
- School of Medicine, Department of Infectious Diseases and Clinical Microbiology, Koç University, Istanbul, Turkey; Koç University İşBank Centre for Infectious Diseases, Istanbul, Turkey
| | - Çağdaş Dağ
- Department of Molecular Biology and Genetics, Koç University, Istanbul, Turkey; Nanofabrication and Nanocharacterization Centre for Scientific and Technological Advanced Research, Koç University, Istanbul, Turkey; Koç University İşBank Centre for Infectious Diseases, Istanbul, Turkey
| | - Mehmet Gönen
- Department of Industrial Engineering, College of Engineering, Koç University, Istanbul, Turkey; Koç University İşBank Centre for Infectious Diseases, Istanbul, Turkey
| | - Fusun Can
- School of Medicine, Department of Infectious Diseases and Clinical Microbiology, Koç University, Istanbul, Turkey; Koç University İşBank Centre for Infectious Diseases, Istanbul, Turkey
| | - Hasan DeMirci
- Department of Molecular Biology and Genetics, Koç University, Istanbul, Turkey; Stanford PULSE Institute, SLAC National Laboratory, Menlo Park, CA, USA; Koç University İşBank Centre for Infectious Diseases, Istanbul, Turkey
| | - Onder Ergonul
- School of Medicine, Department of Infectious Diseases and Clinical Microbiology, Koç University, Istanbul, Turkey; Koç University İşBank Centre for Infectious Diseases, Istanbul, Turkey.
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22
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Akpinar C, Dogan O, Kubilay E, Gokce MI, Suer E, Gulpinar O, Baltaci S. The evaluation of acute kidney injury due to ischemia by urinary neutrophil gelatinase-induced lipocalin (uNGAL) measurement in patients who underwent partial nephrectomy. Int Urol Nephrol 2020; 53:393-400. [PMID: 32980930 DOI: 10.1007/s11255-020-02660-2] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/18/2020] [Indexed: 01/20/2023]
Abstract
PURPOSE To investigate the role of urinary neutrophil gelatinase-induced lipocalin (uNGAL) measurement in the early diagnosis of acute kidney injury that may occur after intraoperative ischemia in patients undergoing partial nephrectomy (PN). METHODS This prospective study included 86 patients who underwent open laparoscopic or robotic partial nephrectomy between May 2017 and May 2019. During the surgery, whether the patients had ischemia or not, type of vascular clamping and the ischemia time were noted. The definition of acute kidney injury (AKI) was classified according to Acute Kidney Injury Network (AKIN) criteria. Urine samples were collected preoperatively and 3 h after renal pedicle clamp removal and uNGAL was measured. RESULTS AKI was recorded in 34 (39.5%) of 86 patients after PN. Of the 34 patients, 26 (76.4%) had level 1 and 8 (23.6%) had level 2 AKI. uNGAL levels increased significantly as an early reflection of AKI in patients who underwent intraoperative total or renal artery clamping (p = 0.024). There was no significant postoperative increase in uNGAL in the non-ischemic group (p = 0.163). uNGAL expression was detected well before serum creatinine increase. Patients with AKI after PN had higher uNGAL expression (p = 0.008) However, there was no correlation between the level of AKI and uNGAL expression (r = 0.201, p = 0.066). CONCLUSION Ischemic acute kidney injury after nephron-sparing surgery can be detected early by uNGAL measurement. In future studies comparing outcomes of different surgical techniques on renal functions after PN, uNGAL levels may be used.
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Affiliation(s)
- Cagri Akpinar
- Department of Urology, School of Medicine, Ibn-i Sina Hospital, Ankara University, Ankara, Turkey.
| | - Ozlem Dogan
- Department of Biochemistry, Ankara University, Ankara, Turkey
| | - Eralp Kubilay
- Department of Urology, School of Medicine, Ibn-i Sina Hospital, Ankara University, Ankara, Turkey
| | - Mehmet Ilker Gokce
- Department of Urology, School of Medicine, Ibn-i Sina Hospital, Ankara University, Ankara, Turkey
| | - Evren Suer
- Department of Urology, School of Medicine, Ibn-i Sina Hospital, Ankara University, Ankara, Turkey
| | - Omer Gulpinar
- Department of Urology, School of Medicine, Ibn-i Sina Hospital, Ankara University, Ankara, Turkey
| | - Sumer Baltaci
- Department of Urology, School of Medicine, Ibn-i Sina Hospital, Ankara University, Ankara, Turkey
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Cavdarli B, Ozturk FN, Guntekin Ergun S, Ergun MA, Dogan O, Percin EF. Intelligent Ratio: A New Method for Carrier and Newborn Screening in Spinal Muscular Atrophy. Genet Test Mol Biomarkers 2020; 24:569-577. [PMID: 32721240 DOI: 10.1089/gtmb.2020.0085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Aim: Spinal muscular atrophy (SMA) is an inherited, autosomal recessive neuromuscular disease that causes high morbidity and mortality. The prevalence is 1-2/100,000, while the incidence is 1/6000-1/10,000 among live births. Due to the high carrier frequency (1/40-1/60) of SMA-associated alleles, screening can prevent new cases. The aim of the current study was to present the development of a new, quantitative, real-time, polymerase chain reaction (PCR)-based screening test that uses an intelligent ratio (IR) for analyses, as well as a comparison of the results with the gold standard. Materials and Methods: Included in the study were 100 patients with various risk genotypes for survivor motor neuron 1 (SMN1) and SMN2 genes whose genetics had been previously investigated using multiplex ligation probe amplification (MLPA). A combination of the 5' nuclease assay and allele-specific PCR was used to quantify the SMN1 deletion mutation with real-time PCR using the FII gene as a reference. All of the optimized standards were adapted to software that provided automated analyses. The approval number of the institutional ethics committee for the study is 2012-KAEK-15/1497. Results: The results of the screening test were completely compatible with the MLPA results; it achieved 100% sensitivity and specificity compared with the gold standard. The use of the IR in the analyses provided a user-independent method that quickly and accurately provided results, regardless of the amount of DNA used of the extraction method. Conclusion: Carrier or newborn screening of SMA is essential in countries that have high rates of consanguineous marriages. The screening test presented in this study that uses FII as a reference gene proved to be low-cost, reliable, applicable, accurate, and amenable to use in an automated system for SMA screening.
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Affiliation(s)
- Busranur Cavdarli
- Department of Medical Genetics, Ankara Numune Training and Research Hospital, Ankara, Turkey
| | - Fatma Nihal Ozturk
- Department of Medical Genetics, Dr Sami Ulus Gynecology Obstetrics and Child Health and Diseases Training and Research Hospital, Ankara, Turkey
| | - Sezen Guntekin Ergun
- Department of Biological Sciences, Molecular Biology and Genetics, Middle East Technical University, Ankara, Turkey
| | - Mehmet Ali Ergun
- Department of Medical Genetics, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Ozlem Dogan
- SNP Biotechnology Ltd., Hacettepe University Technopolis, Ankara, Turkey
| | - Emriye Ferda Percin
- Department of Medical Genetics, Faculty of Medicine, Gazi University, Ankara, Turkey
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Aksoz Z, Akkan T, Beyan E, Dagdeviren M, Mete Yildirim A, Karadag I, Dogan O, Ertugrul DT, Altay M. The easy way of evaluating exocrine pancreatic insufficiency in type 2 diabetes : listen to the patients' complaints and look in their eyes! Acta Gastroenterol Belg 2020; 83:407-412. [PMID: 33094587] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
BACKGROUND AND STUDY AIMS The objective of this study is to determine the prevalence of exocrine pancreatic insufficiency (EPI) in diabetic patients, and to investigate whether there is a relationship between EPI and diabetes period, gastrointestinal complaints and other diabetic microvascular complications. PATIENTS AND METHODS A total of 93 participants, consisting of 57 type 2 diabetes patients and 36 healthy volunteers have been included in our cross-sectional study. Participants were questioned for abdominal complaints and weight loss. Fecal elastase-1 (FE-1) was determined in fecal spot samples received from participants. The relationship between EPI and blood glucose, HbA1c, and duration and complications of diabetes were investigated. RESULTS FE-1 levels were significantly lower in diabetic group compared to control group (p=0.007). The number of patients with FE-1 levels of <200μg/g were significantly higher in diabetic group (p=0.002). A statistically significant negative correlation was determined between FE-1 levels and the duration of diabetes (r= -0.453 p<0.001). FE-1 levels were significantly lower in patients with retinopathy (p= 0.014). In the post-hoc analysis, this difference was due to patients in the proliferative retinopathy group. A significant negative correlation was determined between the presence of retinopathy and FE-1 levels (r=-0.32, p=0.02). Abdominal pain and distension complaints were independent predictive factors that estimate EPI. CONCLUSIONS An important part of type 2 diabetes patients has EPI and it should be considered in diabetes patients upon abdominal pain and distension. Determination of proliferative retinopathy in the eye examination may also suggest an idea on the possible presence of EPI.
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Affiliation(s)
- Z Aksoz
- University of Health Sciences, Kecioren Training and Research Hospital, Department of Internal Medicine
| | - T Akkan
- University of Health Sciences, Kecioren Training and Research Hospital, Department of Endocrinology and Metabolism
| | - E Beyan
- University of Health Sciences, Kecioren Training and Research Hospital, Department of Internal Medicine
| | - M Dagdeviren
- University of Health Sciences, Kecioren Training and Research Hospital, Department of Endocrinology and Metabolism
| | - A Mete Yildirim
- University of Health Sciences, Kecioren Training and Research Hospital, Department of Internal Medicine
| | - I Karadag
- University of Health Sciences, Kecioren Training and Research Hospital, Department of Internal Medicine
| | - O Dogan
- Ankara University Faculty of Medicine, Department of Medical Biochemistry, Ankara, Turkey
| | - D T Ertugrul
- University of Health Sciences, Kecioren Training and Research Hospital, Department of Endocrinology and Metabolism
| | - M Altay
- University of Health Sciences, Kecioren Training and Research Hospital, Department of Endocrinology and Metabolism
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Dogan O, Schierbaum N, Weidenmuller J, Baum M, Schroder T, Wunsch D, Gortz M, Seidl K. Miniaturized Multi Sensor Implant for Monitoring of Hemodynamic Parameters .. Annu Int Conf IEEE Eng Med Biol Soc 2020; 2019:3823-3826. [PMID: 31946707 DOI: 10.1109/embc.2019.8856571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
t a novel miniaturized multi sensor implant for monitoring hemodynamic parameters in cardiovascular regions. Pressure measurements are performed with a highly accurate capacitive pressure sensor. An additional acceleration and temperature sensor allows compensating the impact of patient's inclination and temperature variations on the pressure measurement, respectively. A multi-functional transponder application-specific integrated circuit (ASIC) manages sensor signal processing, storage of ID, sensor calibration data, telemetric energy, and data transmission with an extracorporeal reading unit. Each component of the implant is assembled on a low temperature co-fired ceramics (LTCC) circuit board with an integrated antenna coil enabling an inductive near-field coupling at a frequency of 13.56 MHz. For a streamlined shape and reduction of thrombogenicity, the implant is encapsulated by biocompatible polymers.
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Gülmez D, Alp S, Gursoy G, Ayaz CM, Dogan O, Arikan-Akdagli S, Akova M. Mixed fungaemia: an 18-year report from a tertiary-care university hospital and a systematic review. Clin Microbiol Infect 2020; 26:833-841. [PMID: 32246995 DOI: 10.1016/j.cmi.2020.03.030] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 03/16/2020] [Accepted: 03/26/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND While fungaemia caused by two or more different species of yeasts (mixed fungaemia, MF) is infrequent, it might be underestimated. AIMS This study aimed to determine the incidence of MF, clinical characteristics of the patients, and antifungal susceptibility profiles of the isolates with a systematic review of the literature. SOURCES Data sources were PubMed and Scopus. STUDY ELIGIBILITY CRITERIA Studies reporting ten or more mixed fungaemia episodes. CONTENT Study included MF episodes in adults between January 2000 and August 2018 in Hacettepe University Hospitals, Turkey. The isolation, identification and antifungal susceptibility testing (AFST) of the isolates were by standard mycological methods. Patient data were obtained retrospectively. Literature search was performed using relevant keywords according to PRISMA systematic review guidelines. A total of 32 patients with 33 MF episodes were identified. Among all fungaemia episodes, MF incidence was 3.7% (33/883). All patients had one or more underlying disorders among which solid-organ cancer (50.0%, 16/32) was the most common. Overall mortality was 51.5% (17/33). The most preferred antifungal agents for initial treatment were fluconazole (48.5%, 16/33) and echinocandins (39.4%, 13/33). Fluconazole susceptible-dose-dependent (S-DD) or -resistant Candida species were detected in 15 episodes, and an isolate of C. parapsilosis was classified as S-DD by AFST. All Candida isolates were susceptible to echinocandins. Non-candida yeasts with intrinsic resistance/reduced susceptibility to both echinocandins and fluconazole were detected in two episodes. Systematic review of the literature revealed 24 studies that reported more than ten MF episodes. Methodology was variable. Improvement of detection rates was reported when chromogenic agars were used. Most studies underlined detection of isolates with reduced susceptibility. IMPLICATIONS Although rare, the MF rate is affected by the detection methods, which have improved in recent years. Fluconazole and echinocandins were used for initial treatment in accordance with the current guideline recommendations; however, isolates non-susceptible to both were detected. Detection of a mixed infection offers an opportunity for optimum treatment.
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Affiliation(s)
- D Gülmez
- Hacettepe University Faculty of Medicine, Medical Microbiology, Ankara, Turkey.
| | - S Alp
- Hacettepe University Faculty of Medicine, Clinical Microbiology and Infectious Diseases, Ankara, Turkey
| | - G Gursoy
- Hacettepe University Faculty of Medicine, Clinical Microbiology and Infectious Diseases, Ankara, Turkey
| | - C M Ayaz
- Hacettepe University Faculty of Medicine, Clinical Microbiology and Infectious Diseases, Ankara, Turkey
| | - O Dogan
- Hacettepe University Faculty of Medicine, Medical Microbiology, Ankara, Turkey; Koç University Faculty of Medicine, Medical Microbiology, Topkapi-Istanbul, Turkey
| | - S Arikan-Akdagli
- Hacettepe University Faculty of Medicine, Medical Microbiology, Ankara, Turkey
| | - M Akova
- Hacettepe University Faculty of Medicine, Medical Microbiology, Ankara, Turkey
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Vatansever C, Menekse S, Dogan O, Gucer LS, Ozer B, Ergonul O, Can F. Co-existence of OXA-48 and NDM-1 in colistin resistant Pseudomonas aeruginosa ST235. Emerg Microbes Infect 2020; 9:152-154. [PMID: 31964275 PMCID: PMC7006663 DOI: 10.1080/22221751.2020.1713025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Here, we presented 11 cases with colistin-resistant Pseudomonas aeruginosa infection and co-existence of OXA-48 and NDM-1 in the ST235 high-risk clone. The molecular analyses were performed by Sanger sequencing and RT-PCR. The eight patients (72.7%) had an invasive infection and three (27.3%) had colonization. The 30-day mortality rate was 87.5% (7/8). Three patients (37.5%, 3/8) received colistin therapy before isolation of P. aeruginosa. In the Multilocus sequence typing (MLST) analysis of 11 isolates, eight (72.7%) isolates belonged to P. aeruginosa ST235 clone. All isolates were NDM-1 positive, and nine isolates (81.8%) were found to be positive for both OXA-48 and NDM-1. Sequences of pmrAB and phoPQ revealed numerous insertions and deletions in all isolates. In 10 isolates pmrAB and phoPQ were found to be upregulated. In conclusion, the co-existence of OXA-48 and NDM-1 genes in colistin-resistant P. aeruginosa ST235 high-risk clone indicates the spread of carbapenemases in clinical isolates and highlights need of continuous surveillance for high-risk clones of P. aeruginosa.
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Affiliation(s)
- Cansel Vatansever
- Department of Infectious Diseases and Clinical Microbiology, Koc University School of Medicine, Istanbul, Turkey
| | - Sirin Menekse
- Department of Infectious Diseases and Clinical Microbiology, Kosuyolu State Hospital, Istanbul, Turkey
| | - Ozlem Dogan
- Department of Infectious Diseases and Clinical Microbiology, Koc University School of Medicine, Istanbul, Turkey
| | - Lal Sude Gucer
- Department of Infectious Diseases and Clinical Microbiology, Koc University School of Medicine, Istanbul, Turkey
| | - Berna Ozer
- Department of Infectious Diseases and Clinical Microbiology, Koc University School of Medicine, Istanbul, Turkey
| | - Onder Ergonul
- Department of Infectious Diseases and Clinical Microbiology, Koc University School of Medicine, Istanbul, Turkey
| | - Fusun Can
- Department of Infectious Diseases and Clinical Microbiology, Koc University School of Medicine, Istanbul, Turkey
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Bilici K, Atac N, Muti A, Baylam I, Dogan O, Sennaroglu A, Can F, Yagci Acar H. Broad spectrum antibacterial photodynamic and photothermal therapy achieved with indocyanine green loaded SPIONs under near infrared irradiation. Biomater Sci 2020; 8:4616-4625. [DOI: 10.1039/d0bm00821d] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Antimicrobial photodynamic therapy (aPDT) and antimicrobial photothermal therapy (aPTT) are promising local and effective alternative therapies for antibiotic resistant bacterial infections and biofilms.
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Affiliation(s)
- K. Bilici
- Koc University
- Department of Chemistry
- Istanbul
- Turkey
| | - N. Atac
- Koç University School of Medicine
- Department of Infectious Diseases and Clinical Microbiology
- Istanbul
- Turkey
| | - A. Muti
- Koc University
- Departments of Physics and Electrical-Electronics Engineering
- Istanbul
- Turkey
| | | | - O. Dogan
- Koç University School of Medicine
- Department of Infectious Diseases and Clinical Microbiology
- Istanbul
- Turkey
| | - A. Sennaroglu
- Koc University
- Departments of Physics and Electrical-Electronics Engineering
- Istanbul
- Turkey
- Koc University
| | - F. Can
- Koç University School of Medicine
- Department of Infectious Diseases and Clinical Microbiology
- Istanbul
- Turkey
| | - H. Yagci Acar
- Koc University
- Department of Chemistry
- Istanbul
- Turkey
- Koc University
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Istemihan Z, Ozkan S, Dogan O, Yonal-Hindilerden I, Kalayoglu-Besisik S, Kalayoglu-Besısık S. Long-time overlooked blastic plasmacytoid dendritic cell neoplasm evolving into multiple organ involvement presentation. Leuk Res 2019. [DOI: 10.1016/s0145-2126(19)30315-7] [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: 11/30/2022]
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Kelestemur E, Eminoglu T, Dogan O, Cobanoglu N. Evaluation of Serum Kitotriosidase Levels as Inflammation Markers in Patients with Cystic Fibrosis and Bronchopulmonary Dysplasia. Turk Thorac J 2019. [DOI: 10.5152/turkthoracj.2019.245] [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: 11/22/2022]
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Boz A, Tazegul G, Bozoglan H, Dogan O, Sari R, Altunbas HA, Arici C, Ocak GA, Balci MK. Bone metastases without primary tumor: A well-differentiated follicular thyroid carcinoma case. J Cancer Res Ther 2018. [PMID: 29516937 DOI: 10.4103/0973-1482.199391] [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] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Metastases to the bone are the most common malignant bone tumors. Prostate, breast, and lung carcinomas are the most common primaries of bone metastases. Bone metastases show poor prognosis in means of median survival; however, some patients with highly curable tumors such as thyroid carcinoma may benefit from treatment. We report and discuss a unique case of a 70-year-old female patient presenting with arm pain, diagnosed with metastatic well-differentiated follicular carcinoma without a primary tumor in the thyroid.
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Affiliation(s)
- Adil Boz
- Department of Nuclear Medicine, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Gokhan Tazegul
- Department of Internal Medicine, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Humeyra Bozoglan
- Department of Endocrinology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Ozlem Dogan
- Department of Endocrinology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Ramazan Sari
- Department of Endocrinology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Hasan Ali Altunbas
- Department of Endocrinology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Cumhur Arici
- Department of General Surgery, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Guzide Ayse Ocak
- Department of Pathology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
| | - Mustafa Kemal Balci
- Department of Endocrinology, Faculty of Medicine, Akdeniz University, Antalya, Turkey
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Emiralioglu N, Dogru D, Dogan O, Gulmez D, Arikan-Akdagli S, Eryilmaz S, Tugcu G, Gharibzadeh Hizal M, Yalcin E, Ozcelik U, Sener B, Kiper N. P067 Diverse clinical characteristics of Aspergillus growth in patients with cystic fibrosis. J Cyst Fibros 2018. [DOI: 10.1016/s1569-1993(18)30364-3] [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: 11/27/2022]
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Dogan O, Serdar MA, Murat K, Sonmez C, İspir E, Serteser M, Unsal I. A Simple Method for Quantification of Five Urinary Porphyrins, Porphobilinogen and 5-Aminolevulinic Acid, Using Liquid Chromatography Tandem Mass Spectrometry. Indian J Clin Biochem 2017; 34:82-88. [PMID: 30728677 DOI: 10.1007/s12291-017-0716-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Accepted: 11/06/2017] [Indexed: 02/06/2023]
Abstract
Analysis of porphyrins and 5-aminolevulinic acid (ALA), porphobilinogen (PBG) in physiological liquids is required for diagnosis and follow-up of porphyrias. High performance liquid chromatography (HPLC) and liquid chromatography tandem mass spectrometry (LC-MS) methods with higher specificity and sensitivity have been developed. The major disadvantage of those methods is that they require longer extraction times due to their matrix effects. The present study suggests a simple, fast, sensitive, and specific assay for determination of Coproporphyrin, 5-carboxylporphyrin, 6-carboxylporphyrin, 7-carboxylporphyrin, Uroporphyrin I and ALA, PBG in urine sample by direct injection without sample pre-treatment using LC-MS. For the purposes of the present study LC-MS device was set to multiple reaction monitoring (MRM) and positive ion mode. Porphyrins and ALA, porphobilinogen were characterized by their MS/MS product ion, spectra. ALA, PBG and 5 porphyrins were detected simultaneously. Limit of detection for Coproporphyrin, 5-carboxylporphyrin, 6-carboxylporphyrin, 7-carboxylporphyrin, Uroporphyrin I were 2 nmol/L, where it was 5 μmol/L for ALA and 2 μmol/L for porphobilinogen. The present study suggests that the present method is very effective compared to many other available methods for it does not require pre-treatment, provides simultaneous results of ALA, PBG and 5 porphyrins quantitatively in a shorter span of time, and has suitable sensitivity and selectivity. LC-MS technique was used clinically for the determination of urine porphyrin levels.
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Affiliation(s)
- Ozlem Dogan
- 1Department of Medical Biochemistry, Ankara University Faculty of Medicine, Ankara, Turkey
| | - Muhittin A Serdar
- 2Department of Medical Biochemistry, Acibadem University, Istanbul, Turkey
| | - Koza Murat
- Ataturk Chest Disease and Thoracic Surgery Education and Research Hospital, Ankara, Turkey
| | - Cigdem Sonmez
- Department of Biochemistry, Dr Abdurrahman Yurtarslan Education and Research Hospital, Ankara, Turkey
| | - Emre İspir
- Department of Biochemistry, Gulhane Military Medical Hospital, Ankara, Turkey
| | - Mustafa Serteser
- 2Department of Medical Biochemistry, Acibadem University, Istanbul, Turkey
| | - Ibrahim Unsal
- 2Department of Medical Biochemistry, Acibadem University, Istanbul, Turkey
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Tazegul G, Ogut TS, Bozoglan H, Dogan O, Yilmaz N, Ulas T, Salim O, Sari R, Altunbas HA, Balci MK. Using plasma exchange to successfully manage thyrotoxicosis in a patient with possible antithyroid drug-related thrombotic thrombocytopenic purpura. Endocr Regul 2017; 51:153-156. [PMID: 28858843 DOI: 10.1515/enr-2017-0016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE Thrombotic thrombocytopenic purpura (TTP) is a rare disease characterized by microangiopathic hemolytic anemia, thrombocytopenic purpura, neurologic abnormalities, fever, and renal insufficiency. The association or co-existence of thyrotoxicosis or antithyroid drugs with TTP has not been previously reported. Subject and Results. Herein, we present a 54-year-old female patient newly diagnosed with toxic multinodular goiter accompanying with TTP, possibly triggered by either thyrotoxicosis or antithyroid drugs. CONCLUSIONS The present report is the first in the literature to demonstrate the co-existence of these two diseases and the use of plasma exchange as a modality to treat both conditions.
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Yakar T, Demir M, Dogan O, Parlakgumus A, Ozer B, Serin E. High Dose Oral Furosemide with Salt Ingestion in the Treatment of Refractory Ascites of Liver Cirrhosis. ACTA ACUST UNITED AC 2016. [DOI: 10.25011/cim.v39i6.27502] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Purpose: We aimed to evaluate and compare the efficacy and safety of high-dose furosemide+salt orally by comparing HSS+ furosemide (i.v.) and repeated paracentesis in patients with RA.
Methods: This was a prospective study of 78 cirrhotic patients with RA, randomized into three groups: Group A (n= 25) i.v. furosemide (200-300 mg bid) and 3% hypotonic saline solution (HSS) (once or twice a day); Group B (n= 26) oral furosemide tablets (360-520 mg bid) and salt (2.5 g bid); and, Group C (n= 27) repeated large-volume-paracentesis (RLVP) with albumin infusion. Patients without hyperkalemia were administrated 100 mg of spironolactone/day. During the follow-up; INR, creatinine, and total bilirubin levels were measured to determine the change in MELD (model of end stage liver disease) score.
Results: Hepatic encephalopathy (HE), severe episodes of spontaneous bacterial peritonitis (SBP) and pleural effusions (PE) occurred more frequently in Group C. Improvement in Child-Pugh and MELD score was better in Group A and B than Group C. In Group B, improvements were seen in the Child-Pugh and MELD score, reduction in body weight, duration and number of hospitalization. In Groups A and B, remarkable increases in diuresis were observed (706±116 to 2425±633 mL and 691±111 to 2405±772 mL) and serum sodium levels also improved. HE and SBP were occurred more often in group C (p
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Yakar T, Demir M, Dogan O, Parlakgumus A, Ozer B, Serin E. High Dose Oral Furosemide with Salt Ingestion in the Treatment of Refractory Ascites of Liver Cirrhosis. CLIN INVEST MED 2016; 39:27502. [PMID: 27917793] [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: 12/01/2016] [Indexed: 06/06/2023]
Abstract
PURPOSE We aimed to evaluate and compare the efficacy and safety of high-dose furosemide+salt orally by comparing HSS+ furosemide (i.v.) and repeated paracentesis in patients with RA. METHODS This was a prospective study of 78 cirrhotic patients with RA, randomized into three groups: Group A (n= 25) i.v. furosemide (200-300 mg bid) and 3% hypotonic saline solution (HSS) (once or twice a day); Group B (n= 26) oral furosemide tablets (360-520 mg bid) and salt (2.5 g bid); and, Group C (n= 27) repeated large-volume-paracentesis (RLVP) with albumin infusion. Patients without hyperkalemia were administrated 100 mg of spironolactone/day. During the follow-up; INR, creatinine, and total bilirubin levels were measured to determine the change in MELD (model of end stage liver disease) score. RESULTS Hepatic encephalopathy (HE), severe episodes of spontaneous bacterial peritonitis (SBP) and pleural effusions (PE) occurred more frequently in Group C. Improvement in Child-Pugh and MELD score was better in Group A and B than Group C. In Group B, improvements were seen in the Child-Pugh and MELD score, reduction in body weight, duration and number of hospitalization. In Groups A and B, remarkable increases in diuresis were observed (706±116 to 2425±633 mL and 691±111 to 2405±772 mL) and serum sodium levels also improved. HE and SBP were occurred more often in group C (p<0.002). Hospitalization decreased significantly in Group B (p<0.001). There was no significant difference in survival among groups. CONCLUSION High dose oral furosemide with salt ingestion may be an alternative, effective, safe and well-tolerated method of therapy for RA.
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Abstract
Abstract
Calcium carbonate (CaCO3) was synthesized by means of ultrasonic process in the presence of the water-soluble polymer carboxymethyl inulin (CMI). Synthesized CaCO3 crystals were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and BET (Brunauer, Emmett and Teller) isotherm. Applying Box-Behnken experimental design, the effects of the amplitude of sonicator (Amp), biopolymer concentration (BC) and the application time of ultrasound (AT) on the preparation of CaCO3 with respect to specific surface area (SSA) of final product was investigated. The experimental design was studied at three levels. The range of the amplitude of sonicator, polymer concentration and the application time of ultrasound were 25%–50%, 0.25–0.75 g/L and 1–5 min, respectively. The model equation representing specific surface area (SSA) of calcium carbonate was expressed as functions of three operating parameters namely the application time of the ultrasound, the amplitude of sonicator and polymer concentration. The results showed that the application time of ultrasound was the most significant variable that influenced the surface area of the crystals among three variables and the experimental results were in good agreement with those predicted by the proposed regression model. The highest value of specific surface area was obtained at the maximum application time of ultrasound.
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Arin G, Kisacik P, Akdogan A, Kilic L, Berberoglu U, Karabulut E, Dogan O, Unal E. AB1099-HPR Comparison of The Effect of Daily Living Activities and Depression on Quality of Life in Patients with Ankylosing Spondylitis and Rheumatoid Arthritis: Table 1. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4922] [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: 11/03/2022]
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Kisacik P, Arin G, Oksuz S, Berberoglu U, Arın G, Akdogan A, Akdogan A, Dogan O, Dogan O, Karabulut E, Karabulut E, Unal E, Unal E. FRI0636-HPR Effects of Clinical Pilates Exercises Combined with Dancetherapy on Mood in Patients with Rheumatic Diseases: Table 1. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3207] [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: 11/03/2022]
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Kisacik P, Oksuz S, Oksuz S, Arın G, Arın G, Akdogan A, Akdogan A, Dogan O, Dogan O, Karabulut E, Karabulut E, Unal E, Unal E. FRI0637-HPR The Effects of Clinical Pilates Exercises on Kinestesia and Position Sense in Patients with Osteoarthritis of The Knee: Table 1. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.4930] [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: 11/04/2022]
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Unal E, Kısacık P, Oksuz S, Arın G, Dogan O, Karabulut E. FRI0619-HPR Investigating The Effects of A Multidimensional Exercise Program on Symptoms and Antiinflammatory Status in Oa Patients of The Knee: Table.1. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3148] [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: 11/03/2022]
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Murat Sedef A, Kose F, Taner Sumbul A, Dogan O, Kursun E, Yurdakul Z, Sumbul Gultepe B, Mertsoylu H, Sezer A, Ozyilkan O. Prognostic value of procalcitonin in infection-related mortality of cancer patients. J BUON 2016; 21:740-744. [PMID: 27569098] [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: 06/06/2023]
Abstract
PURPOSE Infectious diseases are a major cause of morbidity and mortality in cancer patients. Tumor-induced inflammatory responses may increase the value of classical inflammatory markers in blood, so these markers may not be as useful in cancer patients as in non-cancer patients. Serum procalcitonin (PCT) is a sensitive and specific biomarker for severe infection, and has been shown to be unaffected by tumor-induced inflammatory response. In this study we aimed to evaluate the possible role of PCT in mortality in cancer patients with infection. METHODS In total, 104 consecutive adult cancer patients who presented with fever (body temperature ≥ 38.3° C or ≥ 38° C on two consecutive measurements) during follow-up and needing hospitalization for infection were enrolled in this study. RESULTS The majority (72%) of the patients were male. The most common diagnosis and type of infection were lung cancer (40.4%) and pneumonia (56.7%), respectively. The overall mortality rate was 17%. Statistical analysis showed a significant relationship between PCT levels and mortality (p=0.001), but not between classical inflammatory markers and mortality (p>0.05). The mortality rate of patients with a PCT value > 2 ng/mL was 34.3%, compared with 9.6% in patients with a PCT below this value (p=0.005). Furthermore, PCT predicted in-ward cancer patient mortality with a sensitivity of 66% and a specificity of 76%. CONCLUSION PCT is a unique serum biomarker significantly related to infection-related mortality and predicts mortality with a relatively high sensitivity and specificity.
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Affiliation(s)
- Ali Murat Sedef
- Department of Medical Oncology, Baskent University, Adana, Turkey
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Kose F, Sedef AM, Özdemir N, Gunaldi M, Urun Y, Besen AA, Sumbul AT, Goksu SS, Dogan O, Mertsoylu H, Tatli AM, Erdem D, Demirci S, Gunduz S, Yildirim M, Ozyilkan O, Abali H. Can primary tumor localization predict the which patient will have benefit from addition of taxanes to platin-5-FU based regimens in metastatic gastric cancer. Multi center retrospective analysis from Turkey, Society of Turkish Oncology Group study. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.e15030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Fatih Kose
- Department of Medical Oncology, Baskent University Faculty of Medicine, Adana, Turkey
| | | | - Nuriye Özdemir
- Yildirim Beyazit University Faculty of Medicine, Department of Medical Oncology, Ankara, Turkey
| | - Meral Gunaldi
- Bakirkoy Dr. Sadi Konuk Research and Training Hospital Department of Medical Oncology, Istanbul, Turkey
| | - Yuksel Urun
- Department of Medical Oncology, Gaziantep State Hospital, Gaziantep, Turkey
| | | | | | - Sema Sezgin Goksu
- Akdeniz University Faculty of Medicine, Department of Medical Oncology, Antalya, Turkey
| | | | - Huseyin Mertsoylu
- Department of Medical Oncology, Baskent University Faculty of Medicine, Adana, Turkey
| | - Ali Murat Tatli
- Akdeniz University Faculty of Medicine, Department of Medical Oncology, Antalya, Turkey
| | - Dilek Erdem
- Samsun Education and Research Hospital, Samsun, Turkey
| | - Serkan Demirci
- Ankara Numune Education and Research Hospital, Ankara, Turkey
| | | | | | - Ozgur Ozyilkan
- Department of Medical Oncology, Baskent University Faculty of Medicine, Adana, Turkey
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Mertsoylu H, Kose F, Sedef A, Dogan O, Parlak C, Besen A, Sumbul A, Fındıkcıoglu A, Sezer A, Muallaoglu S. Concurrent Chemoradiotherapy with Vinorelbine Plus Split-Dose Cisplatin in Inoperable Stage Iii Non-Small Cell Lung Cancer. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv049.10] [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: 11/12/2022] Open
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Kurku H, Kacmaz M, Kisa U, Dogan O, Caglayan O. Acute and chronic impact of smoking on salivary and serum total antioxidant capacity. J PAK MED ASSOC 2015; 65:164-169. [PMID: 25842552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To investigate increased oxidative stress in saliva of smokers along with their serum. METHODS The case-control study was conducted from September to December 2008 in the Department of Biochemistry of the Medical School, Kirikkale University, Kirikkale, Turkey. A blood sample and saliva samples before and after smoking were collected from the smokers, while blood and saliva samples were taken from the controls. All samples were taken concurrently. The samples were measured for total antioxidant capacity, total oxidant stress, oxidative stress index, malondialdehyde, nitric oxide and total sulfhydryl groups. Levels of superoxide dismutase and glutathione peroxidase were also measured on saliva samples. SPSS 13 was used for statistical analysis. RESULTS Of the 54 subjects in the study, 27(50%) were smokers with a mean age of 28.4 ± 5.42 years, and 27 (50%) were controls with a mean age of 29.7 ± 8.03 years. Total oxidant stress, oxidative stress index, malondialdehyde and nitric oxide levels were found higher in the serum samples of smokers (p < 0.05), and the levels of total sulfhydryl groups in smokers were lower compared with the controls (p < 0.05). Among the smokers, salivary malondialdehyde levels were higher before and after smoking (p < 0.05), glutathione peroxidase levels were lower than the controls, and salivary nitric oxide levels after smoking were higher than both those of the control group and the levels before smoking (p < 0.05). CONCLUSION Both acute and chronic increased oxidative conditions may be a significant sign of the destructive effects of smoking. The investigation of disorders in smokers concerning oxidative stress will be beneficial in terms of novel approaches and treatment modalities.
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Karaman S, Oktar T, Dogan O, Uysalol E, Yilmaz Y, Unuvar A, Karakas Z, Devecioglu O, Anak S. PP-029 A RARE CAUSE OF MACROSCOPIC HEMATURIA IN CHILD: GRANULOCYTIC SARCOMA. Leuk Res 2014. [DOI: 10.1016/s0145-2126(14)70083-9] [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: 11/27/2022]
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Takci S, Gulmez D, Yigit S, Dogan O, Hascelik G. Independent Study Module for Lactation Consultants. J Hum Lact 2013; 29:424-426. [PMID: 28084132 DOI: 10.1177/0890334413488241] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Abstract
BACKGROUND Refrigeration of human milk has been recommended for its short-term storage. It has been shown that some nutritional, immunological, and bioactive properties and bactericidal activity of human milk can be altered during refrigeration. Pyrex bottles and polyethylene bags are 2 commonly used containers for human milk storage. OBJECTIVE The aim of this study was to compare the association between storage container type on the bactericidal activity of human milk for different durations of refrigeration (fresh, and at 24 and 48 hours). METHODS Forty-four samples of human milk were collected from 22 lactating mothers. Two samples of breast milk (approximately 10 mL each) were obtained by manual expression from each mother. One was collected directly into sterile Pyrex bottles and the other into polyethylene bags. One mL of human milk from each container was processed immediately after arrival to the laboratory. The remaining human milk was kept in the Pyrex and polyethylene containers at 4°C until analysis at 24 and 48 hours. The bactericidal activity of each sample was studied. A strain of Escherichia coli ATCC 25922 was used to determine the bactericidal effect of human milk. RESULTS Bactericidal activity was significantly reduced in milk samples stored in polyethylene bags compared to those stored in Pyrex bottles when milk samples were stored at 4°C for 24 and 48 hours (P < .05). CONCLUSION Short-term storage of human milk in Pyrex bottles is more appropriate than polyethylene bags for preserving its bactericidal activity against E coli.
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Affiliation(s)
- Sahin Takci
- Department of Neonatology, Hacettepe University Ihsan Dogramaci Children's Hospital, Ankara, Turkey.
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