MITOCHONDRIAL DNA COPY NUMBER IS ASSOCIATED WITH ATTENTION DEFICIT HYPERACTIVITY DISORDER

Background: Attention deficit hyperactivity disorder (ADHD) is the most common psychiatric disorder in children. Several hypotheses have been proposed to explain its etiology. Mitochondrial dysfunction (MD) is suggested to be one of the causes of Attention Deficit Hyperactivity Disorder. The objective of the study was to evaluate the relationship between MD and ADHD by investigating mitochondrial DNA (mtDNA) levels from peripheral blood leukocytes, one of the best biomarkers of mitochondrial dysfunction. Subjects and methods: This study included 56 children aged 6-16 years who were diagnosed with ADHD for the first time and 56 age- and sex matched children without ADHD. Real-time PCR was performed to determine the relative mtDNA copy number in each study participant. Results: The mean mtDNA copy number of the case group was 57.623±24.827 and that of the control group was 44.204±18.926 (p=0.002). The mtDNA copy number of the case group was higher than that of the control group. Results of ROC curve analysis provided a mtDNA cutoff value of 45. Conclusion: Significantly higher mtDNA copy number in ADHD group may suggest mitochondrial dysfunction in the etiopathogenesis of ADHD

Assessment of Lymph Node Tuberculosis in Two Provinces in Turkey

SUMMARY: The aim of this study was to evaluate lymph node tuberculosis (LNT) cases in two provinces in Turkey with different demographic and socioeconomic characteristics. A total of 109 LNT cases were reviewed retrospectively. The cases were analyzed and compared for symptoms, findings, age, vaccination status, and diagnostic procedures. Socioeconomic conditions were also assessed for the two provinces. A palpable cervical node was considered a significant predictor for all LNT. Mediastinal lymph node involvement was found to be common in cases of pulmonary manifestation of LNT. Female patients were predominantly from the Van Province, while older patients were found to be from Izmir Province. LNT should be suspected in lymphadenitis patients of all age-groups especially in young adolescents with cervical lymph node enlargements. In the presence of mediastinal lymphadenopathy, pulmonary tuberculosis should be investigated

MITOCHONDRIAL DNA COPY NUMBER IS ASSOCIATED WITH ATTENTION DEFICIT HYPERACTIVITY DISORDER

Background: Attention deficit hyperactivity disorder (ADHD) is the most common psychiatric disorder in children. Several hypotheses have been proposed to explain its etiology. Mitochondrial dysfunction (MD) is suggested to be one of the causes of Attention Deficit Hyperactivity Disorder. The objective of the study was to evaluate the relationship between MD and ADHD by investigating mitochondrial DNA (mtDNA) levels from peripheral blood leukocytes, one of the best biomarkers of mitochondrial dysfunction. Subjects and methods: This study included 56 children aged 6-16 years who were diagnosed with ADHD for the first time and 56 age- and sex-matched children without ADHD. Real-time PCR was performed to determine the relative mtDNA copy number in each study participant. Results: The mean mtDNA copy number of the case group was 57.623±24.827 and that of the control group was 44.204±18.926 (p=0.002). The mtDNA copy number of the case group was higher than that of the control group. Results of ROC curve analysis provided a mtDNA cutoff value of 45. Conclusion: Significantly higher mtDNA copy number in ADHD group may suggest mitochondrial dysfunction in the etiopathogenesis of ADHD

The Assessment of Oncological Emergencies Of Chest Diseases

Amaç: Göğüs hastalıkları hastanesi acil servisine başvuran onkoloji hastalarının genel özelliklerini ortaya koymak amaçlandı. Yöntem: Bir aylık dönemde acil servise başvuran malignite tanılı hastaların sosyodemografik verileri ile birlikte başvuru semptomları ve acil tanıları retrospektif olarak incelendi.Bulgular: Çalışmaya alınan 118 hastanın 105 (%84.7)’si erkek, 13 (%15.3)’ü kadın ve yaş ortalaması 61.2 yıl idi. En sık başvuru yapan yaş aralığı 50-59 idi. Hastalarımızda saptanan en sık semptomlar nefes darlığı (%50), ağrı (%27.9), ateş (%14.4) ve hemoptizi (%10.1) idi. Daha az sıklıkta bulantı (%9.3), öksürük-balgam çıkarma (%7.6) ve halsizlik (%5.9) izlendi. Küçük hücreli dışı akciğer karsinomlu hastaların %87.5’i ve küçük hücreli akciğer karsinomunun %23.5’i ileri evre kansere sahip idi. En sık rastlanan acil tanı 49 (%41.5) hastada solunum yetmezliği, 14 (%11.8) hastada kemik metastazı, 13 (%11) hastada beyin metastazı idi.Sonuç: Göğüs hastalıkları acil servisine başvuran hastaların en sık yakınmaları nefes darlığı ve ağrı, en sık acil tanıları solunum yetmezliği ve metastatik hastalıktır. Genel talep palyatif tedaviler içindir, ölüm oranı düşüktür.Objective: It was aimed to reveal the general characteristics of oncology patients referred to emergency service of chest diseases training hospital. Method: A retrospective analysis was performed on the socio-demographic data, the referral symptoms and emergency diagnoses of the subjects diagnosed with malignity who referred to emergency service along one month. Results: Of 118 subjects included in the study, 13 (84.7 %) were women and 105 (84.7 %) were men and the average age was 61.2 years. Frequent age interval was between 50-59. The symptoms most often seen in our cases were dypnea (50 %), pain (27.9 %), fever (14.4 %) and hemoptysis (10.1 %), whereas nausea (9.3%), cough-expectoration (7.6%) and weakness (5.9%) were observed less frequently. 87.5% of non-small cell lung carcinoma and 23.5% of small cell lung carcinoma had advanced stage lung cancer. The most frequent encountered emergency diagnoses were respiratory insufficiency in 49 (41.5%) cases, bone metastasis in 14 (11.8%) and brain metastasis in 13 (11%). Conclusion: It was observed that the most frequent complaints for emergency deferral were dyspnea and pain and the most frequent emergency diagnoses were respiratory insufficiency and metastatic disease. General requirement was for palliative treatments and the mortality was lower

Clinical Characteristics and Transmission Routes of COVID-19 in the Early Period of the Pandemic in a Non-Covid Ward of Chest Diseases Hospital

Objective: In the early stages of the outbreak, Covid patients were followed-up in isolated Covid Wards, and the examinations of other pulmonary diseases continued in Non-Covid wards. Differential diagnosis between COVID-19 and infections caused by other pathogens is not adequately recognized. For this reason, it is even more difficult to identify patients who are infected with SARS-CoV2 or other pathogens. In the present study, the clinical characteristics and transmission routes of the Covid-19 cases in Non-Covid Wards within approximately 2 months’ time after the onset of the pandemic were analyzed speculatively. Method: In the early periods of the pandemic, quarantine wards were created for Covid patients in Chest Diseases Hospital, but there were also changes in Non-Covid patients and new Non-Covid hospitalizations. The clinical characteristics and transmission routes of the Covid cases in Non-Covid Ward were examined retrospectively and observationally between 10.03.2020 and 30.04.2020. Results: During this period, a total of 35 Covid cases were detected as a patient, companion and healthcare employees. The median age of the patients was 50 years (min-max 25-85). There were 17 patients (48.6%) who were not severe, and 18 severe patients (51.4%), and 10 (28.6%) patients died. A total of 25 (71,4%) of infected cases were verified with the SARS-CoV-2 Nucleic Acid Test, and 10 (28,6%) were diagnosed clinically and radiologically as possible COVID-19 cases. Being 65 years old or over, having comorbid diseases, especially COPD, the presence of dyspnea as a symptom and involvement on chest radiography were found to be significantly associated with survival (p0.027, 0.009, 0.038, 0.000 and 0.033, respectively). Lymphopenia, increase in neutrophil count, CRP and NLR value were found to be statistically related to survival (p 0.005, 0.001, 0.014 and 0.000, respectively). We found 4 super spreaders, one of whom was a companion, and 3 patients. Conclusion: Potential “super spreaders” can be the source of infection before the quarantine conditions are applied and comprehensive protection is implemented. For this reason, quarantine, use of personal protective equipment, application of social distancing, and the implementation of comprehensive preventive measures, such as disinfection, are crucial in controlling nosocomial infection

P-53 and H-ras mutations in lung cancer patients 40 years of age and younger and its correlation to tumor stage and Ki-67 immunostaining: A preliminary report

Purpose: To define the roles of the p53 and H-ras gene mutations in the development and biological behavior of lung cancer specifically in young adults. Methods: The archival tumor tissues of 19 patients 40 years of age or younger were studied by means of immunohistochemistry and compared to the tissues of randomly selected 15 patients older than 40 years. Results: In the younger group, p53 and H-ras mutations were found in 11 patients (57.9%) and 4 patients (21.1%), respectively. In the older group, 10 patients (66.6%) showed p53 mutations, whereas none of the cases showed H-ras mutations. Neither p53 nor H-ras immunoreactivity showed statistical significance with age, sex, histologic type, stage and proliferative activity assessed by Ki-67 expression. However, in multivariate analysis, p53 immunopositive and H-ras immunonegative tumors showed significant relation with advanced tumor stage and stronger Ki-67 immunoreactivity. Conclusion: Although p53 and H-ras gene mutations do not play a specific role in young adults on lung carcinogenesis compared to older patients our preliminary results show that, p53 overexpression and absence of H-ras expression in these tumors might be associated with aggressive biological behavior

Do the Amount of Fluid, Histopathology, Radiology and Pleurodesis Status Affect the Survival in Malignant Pleural Effusions?

INTRODUCTION: The primary objective of this study was to identify the most common pleural malignancies leading to malign pleural effusion (MPE). The secondary objective was to evaluate the relationship between the amount of fluid and radiological findings, etiologies, treatment methods and survival. METHODS: We retrospectively included cases of MPE with a tissue diagnosis. RESULTS: The most common causes of MPE were lung cancer (73%), breast cancer (8.3%) and mesothelioma (7%). In patients who were offered chemical pleurodesis, pleurodesis was successful in nearly 31.1%. No relation wasfound between the amount of pleural fluid and cell type,survival, pulmonary, extrapulmonary malignancy and mesothelioma, Patients live longer if pleurodesis was successful (p = 0.005). Median survival of patients with MPE due to pulmonary, extrapulmonary and mesothelioma, ORCID: 0000-0002-8939-336X respectively were 77 ± 12.8, 150 ± 48.4 and 365 ± 0 days. The survival of the patients with mesothelioma was significantly longer than others (P: 0.000). DISCUSSION AND CONCLUSION: The main cause of MPE was lung cancer, followed by breast cancer, unknown primary and mesothelioma. Chemical pleurodesis was a viable palliative measure for MPE. Successful pleurodesis had a significant contribution to the survival

Effect of picroside II on erythrocyte deformability and lipid peroxidation in rats subjected to hind limb ischemia reperfusion injury

Arslan, Mustafa/0000-0003-4882-5063; KARTAL, HAKAN/0000-0003-4539-0228; DURSUN, ALI DOGAN/0000-0001-9056-0025WOS: 000371020800001PubMed: 27041996Background: Ischemia reperfusion injury (I/R) in hind limb is a frequent and important clinical phenomenon. Many structural and functional damages are observed in cells and tissues in these kinds of injuries. In this study, we aimed to evaluate the effect of picroside II on lipid peroxidation and erythrocyte deformability during I/R in rats. Methods: Rats were randomly divided into four groups-each containing six animals (sham, I/R, sham + picroside II, and I/R + picroside II). The infrarenal section of the abdominal aorta was occluded with an atraumatic microvascular clamp in I/R groups. The clamp was removed after 120 minutes and reperfusion was provided for a further 120 minutes. Picroside II (10 mg.kg(-1)) was administered intraperitoneally to the animals in the appropriate groups (sham + picroside II, I/R + picroside II groups). All rats were euthanized by intraperitoneal administration of ketamine (100 mg.kg(-1)) and taking blood from the abdominal aorta. Erythrocytes were extracted from heparinized complete blood samples. Buffer (PT) and then erythrocytes (PE) were passed through the filtration system and the changes in pressure were measured to investigate the role of serum malondialdehyde and nitric oxide (NO) in lipid peroxidation and erythrocyte deformability index. Results: Deformability index was significantly increased in the I/R group compared to groups sham, sham + picroside-II, and I/R + picroside-II (P<0.0001, P<0.0001, and P=0.007). Malondialdehyde (MDA) and NO levels were evaluated. MDA level and NO activity were also higher in the I/R group than in the other groups. Picroside II treatment before hind limb I/R prevented these changes. Conclusion: These results support that deformability of erythrocytes is decreased in I/R injury and picroside II plays a critical role to prevent these alterations. Further experimental and clinical studies are needed to evaluate and clarify the molecular mechanisms of action and clinical importance of these findings

Immunization status in chronic obstructive pulmonary disease: A multicenter study from Turkey

intepe, yavuz selim/0000-0002-5697-5291; Erol, Serhat/0000-0003-1645-7761; Korkmaz, Celalettin/0000-0001-8602-0368; Sertogullarindan, Bunyamin/0000-0002-1478-1990; Kasapoglu, Umut Sabri/0000-0003-2869-9872; Bulbul, Yilmaz/0000-0002-8488-3650WOS: 000455908800007PubMed: 30745939OBJECTIVE: The purpose of this study is to detect the prevalence and the factors associated with influenza and pneumococcal vaccination and outcomes of vaccination during 2013-2014 season in patients with chronic obstructive pulmonary disease (COPD) in Turkey. METHODS: This was a multicenter retrospective cohort study performed in 53 different centers in Turkey. RESULTS: During the study period, 4968 patients were included. COPD was staged as GOLD 1-2-3-4 in 9.0%, 42.8%, 35.0%, and 13.2% of the patients, respectively. Influenza vaccination rate in the previous year was 37.9%; and pneumococcus vaccination rate, at least once during in a life time, was 13.3%. Patients with older age, higher level of education, more severe COPD, and comorbidities, ex-smokers, and patients residing in urban areas had higher rates of influenza vaccination. Multivariate logistic regression analysis showed that advanced age, higher education levels, presence of comorbidities, higher COPD stages, and exacerbation rates were associated with both influenza and pneumococcal vaccination. The number of annual physician/outpatient visits and hospitalizations due to COPD exacerbation was 2.73 +/- 2.85 and 0.92 +/- 1.58 per year, respectively. Patients with older age, lower education levels, more severe COPD, comorbid diseases, and lower body mass index and patients who are male and are residing in rural areas and vaccinated for influenza had significantly higher rates of COPD exacerbation. CONCLUSIONS: The rates of influenza and pneumococcal vaccination in COPD patients were quite low, and the number of annual physician/outpatient visits and hospitalizations due to COPD exacerbation was high in Turkey. Advanced age, higher education levels, comorbidities, and higher COPD stages were associated with both influenza and pneumococcal vaccination