The efficacy of adalimumab on experimentally induced spinal cord ischemia-reperfusion injury

Objective: Paraplegia is a dangerous complication of thoracoabdominal aortic surgery. Various studies have been conducted on the prevention of this complication and some spinal cord protection methods have been proposed. However, there is not any modality that prevent the development of paraplegia certainly. In the I / R period, primary injury triggers secondary injury due to increased inflammation, apoptosis and free radical formation. In this study, we evaluated that the neuroprotective effect of adalimumab in spinal cord ischemia-reperfusion injury.  Materials and Methods: In total, 24 adult New Zealand rabbits were divided into three groups: Group 1, control; Group 2, ischemia-reperfusion by infrarenal aortic clamping; Group 3, adalimumab treated followed by ischemia. Tissue and plasma tumor necrosis factor alpha, interleukin 6, interleukin 10, thiobarbituric acid reactive substance, total oxidant status and total antioxidant status levels were analyzed as a marker of inflammation and oxidation. Histopathological evaluation of the tissues was performed, and apoptosis was evaluated by TUNNEL method. Results: I/R injury significantly increases plasma and spinal cord tissue at TNF alpha, TOS, TBARS, IL6 levels and reduces plasma and spinal cord tissue to TAS and IL10 levels. Adalimumab treatment significantly reduces plasma and spinal cord tissue to TNF alpha, TOS, TBARS, IL6 and increases plasma and tissue to TAS and IL10 levels. Conclusion: Adalimumab treatment significantly reduces the spinal cord neuronal damage score and the number of apoptotic cells. This paper aims to demonstrate the important neuroprotective effects of adalimumab on rabbit spinal cord I/R injury

Association of platelet count and platelet indices with cranial meningioma

Introduction and Objectives: In this study, we aimed to investigate whether platelet count (PLT) and platelet indices included mean platelet volume (MPV), platecrit (PCT), platelet distribution width  (PDW) values can be used as diagnostic markers in cranial meningiomas. Materials and Methods: The study included results of 29 patient and 47 healthy contributors. Based on pathologies, the patients were divided into two groups. The first group included meningioma patients and the second one included healthy individuals. Healthy contributors named control group. Platelet count and platelet indices were determined using Sysmex XN 550 haematology analyzer. The preoperative platelet count (PLT) and platelet indices included mean platelet volume (MPV), platecrit (PCT), platelet distribution width  (PDW) values were recorded from the routine laboratory tests. Results: There was no statistically significant difference in PLT between the meningioma and healthy groups (p = 0.217). There was a statistically significant difference in PCT between the meningioma group and the healthy group (p = 0.002). There was a statistically significant difference in PDW between meningioma group and healthy group (p = 0.001). In terms of MPV, there was a statistically significant difference between meningioma group and the healthy group (p = 0.001) Conclusion: Platelet count and indices are easily available in the routine blood tests. Despite the retrospective design and small sample size, our findings suggest that altered MPV, PDW and PCT levels might serve as potential biomarkers for the diagnosis of meningiomas

Computed tomography-based morphometric measurements of the atlas (C1) posterior arc

Study design: Single-center retrospective study Objectives: This study is performed to determine the anatomic feasibility of the C1 posterior arc screw and help select an optimal screw trajectory in treating patients with craniovertebral junction pathologies. Material and Methods: We reported a single-centre retrospective study. Forty patients (20 male and 20 female) who underwent cervical computed tomography (CT) were chosen from the hospital records. Based on CT images, we measured left laminar length (LLL), right laminar length (RLL), left laminar angle (LLA), right laminar angle (RLA), left laminar axial thickness (LLAT), right laminar axial thickness (RLAT), left laminar coronal thickness (LLCT), right laminar coronal thickness (RLCT), and craniocaudal angle (CCA) of the C1 posterior arc. Results: The mean values and standard deviations (SD) for nine parameters at the C1 posterior arc were determined. LLL, RLL, LLCT, and RLCT were statistically longer in men than women. RLAT was bigger in men but there was no statistical difference. RLA was statistically wider in women than men. LLA and CCA were wider in women but there was no statistical difference, LLAT was bigger in women but there was no statistical difference. There was no statistical difference in measurements by age. Conclusion:  The results of this study are important to avoid neurovascular injury and pedicle breakage because of choosing large screw while performing C1 laminar screw fixation

Memlekette Kaç Tane Kimyasal Çamur Havuzu Var!

Macaristan'da yaşanan felaketten sonra,"Bizim memlekette ne kadar kimyasal çamur havuzu var bilmiyoruz, aslında kapitalizmin yıkıcılığının göstergelerinden olan havuzların bir haritasının çıkarılıp yayınlanmasında büyük yarar olacaktır" demişti bu işi ciddiye alanlar

A novel shape descriptor: Intersection consistency histograms Yeni bir ş ekil betimleyici: Kesişimlerin tutarlilǐgi histogram

In this paper, we propose a novel shape descriptor, called Intersection Consistency Histogram (ICH), which is based on a local regularity measure called Intersection Consistency (IC). Comparing with some widely-used state-of-the-art methods in the literature, we show that ICH performs comparable on several widely-used databases

Global Binary Patterns: A Novel Shape Descriptor

In this paper, we propose a novel shape descriptor, called Global Binary Patterns (GBP), based on interpreting intensity values along a direction in an image as binary numbers, converting these binary numbers to their decimal values and concatenating these decimal values as the elements of a vector that is the GBP representation of the shape. Comparing with some widelyused state-of-the-art methods in the literature, we show that GBP is very fast and its performance on several widely-used databases is comparable or better

Bir çocukta serebellumun disembriyoplastik nöroepiteliyal tümörü

Dysembryoplastic neuroepithelial tumors are benign neoplasms with typical supratentorial location. 12 year old patient, who applied to a local hospital with complaints of loss of consciousness and postural tonus, was referred to our hospital with cerebellar mass diagnosis. According to the anamnesis, similar complaints also appeared when the patient was 3 and 10 years old, however no anomaly was found in the examinations done by pediatric cardiologist and pediatric neurologist in that period. Physical examination and routine laboratory examinations of the patient were normal. The mass identified in the cerebellum was totally removed. The patient was diagnosed as dysembryoplastic neuroepithelial tumor by histopathological evaluation of the tissue. The patient has still been under outpatient follow-up and in complete remission without any evidence of recurrence for 5 years. In this report a child patient having dysembryoplastic neuroepithelial tumor with cerebellar location is aimed to be shared with the literature.Disembriyoplastik nöroepitelyial tümörler (DNT) tipik olarak supratentorial yerleşen benign neoplazmalardır. Bilinç ve postural tonus kaybı şikayetleri ile bir lokal hastaneye başvuran 12 yaşındaki erkek hasta saptanan serebellar kitlesi nedeniyle hastanemize refere edildi. Hikayesinden benzer şikayetlerinin 3 ve 10 yaşlarında da tekrar ettiği ancak o dönemde pediatric kardiyolog ve pediatric nörolog tarafından yapılan incelemelerde herhangi bir anomaliye rastlanmadığı öğrenildi. Hastanın fizik muayenesi ve rutin laboratuvar tetkikleri normaldi. Serebellumda saptanan kitle total olarak çıkarıldı. Alınan dokunun histopatolojik değerlendirmesi ile hastaya DNT tanısı konuldu. Hasta halen, 5 yıldır, herhangi bir nüks belirtisi olmadan ayaktan takip edilmektedir. Bu yazıda serebellum yerleşimli DNT'ye sahip bir çocuk vakanın literatürle paylaşılması amaçlanmıştır

Hydrothorax Development after Ventriculopleural Shunt in a Patient with Peritoneum Absorption Dysfunction

Hidrosefali yıllardan beri bilinen bir hastalık olmasına rağmen takip ve tedavisinde halen bilinmeyen noktalar bulunmaktadır.Hidrosefali tedavisinde alen ventriküloperitoneal şant cerrahisi en sık kullanılan tedavi yöntermidir. Ancak revizyon insidansı ve mortalitesi; enfeksiyon, fazla/az drenaj tıkanma nedeniyle oldukça yüksektir. 62 yaşında bayan hasta kliniğimizde opere edilerek ventriküloplevral şant uygulandı. Ameliyat sonrası beşinci günde hastada ilerleyici tipte nefes darlığı ve siyanoz şikayetleri ortaya çıktı. Hastanın çekilen akciğer grafisinde solda plevral effüzyon tespit edildi.. Ventriküloplevral şant cerrahisi rekürren ventriküloperitoneal şant operasyonları ve revizyonları sonrası görülebilen peritoneal absorbsiyon bozuklukları nedeniyle tercih edilmektedir. Bu raporda ventriküloplevral şant sonrası gelişen tansiyon hidrotorakslı bir olgu sunulmuş ve literatür eşliğinde tartışılmıştır.Although hydrocephaly has been recognized for years, its treatment and follow-up remain obscure. Ventriculoperitoneal shunt application is the most common treatment used in recent years. However, revision incidence and mortality are very high due to infection, overdrainage or underdrainage, and obstruction. 62 years old female patient was operated and ventriculopleural shunt performed in our clinic. Fifth day after operation persistant dyspneic complaints exists. Chest graphia performed and bilateral pleural effusion was seen. In this report, we present a case of hydrothorax after ventriculopleural shunt operation. Ventriculopleural shunting was preferred in this patient because peritoneal absorption disorder developed after recurrent ventriculoperitoneal shunt operations and revisions. The tension hydrothorax that developed is discussed in light of the relevant literature

New Clues in the Malignant Progression of Glioblastoma: Can the Thioredoxin System Play a Role?

AIm: To evaluate and compare the expression of thioredoxin reductase 1 (TrxR1) in primary and secondary glioblastoma samples. mATERIAl and mEThODS: Surgically resected human glioblastoma samples from 40 patients who underwent surgery at our institution were extracted from their histopathological specimens and divided into three groups. Ten histopathologically regular cerebral tissue samples, acquired from the non-neoplastic portion of the specimens, were assigned as the control group. Twenty specimens that included tumoral tissue from each type of glioblastoma (WHO grade IV, primary and secondary) were assigned as the primary and secondary glioblastoma groups. TrxR1 expression was analyzed by using both quantitative reverse transcription polymerase chain reaction (qRT-PCR) and immunohistochemistry. Isocitrate dehydrogenase 1 (IDH1) mutation was analyzed by immunohistochemistry. Ki-67 proliferative index and apoptosis were also analyzed by immunohistochemistry. The differences between the groups were statistically compared and the correlation between these parameters was analyzed. RESulTS: The expressions of TrxR1 and Ki-67 values were significantly higher in primary glioblastoma. IDH1 mutation was significantly higher in secondary glioblastoma. TrxR1 expression was found to be highly correlated with the Ki-67 index. The apoptotic index was similar between primary and secondary glioblastoma. CONCluSION: This study showed a high TrxR1 expression in primary glioblastoma which could indicate a role of the Trx system in promoting the malignant progression by some complex processes