Increased expression of ubiquitin C-terminal hydrolase L1 in astrocytomas of ascending grades.

Background: The ubiquitin-proteasome pathway controls the monitoring and degradation of important proteins and is involved in several cellular processes, such as development, differentiation, and transcriptional regulation. Recent evidence has shown that ubiquitin carboxy-terminal hydrolase-L1 (UCH-L1), a member of the deubiquitinating enzyme family that removes ubiquitin from protein substrates, is overexpressed in many types of cancer.

Aim: This study thus examined the expression of UCH-L1 in human astrocytoma tissues.

Memory B cells and serum immunoglobulins are associated with disease severity and mortality in patients with COVID-19.

Purpose Of The Study: The aim of this study was to investigate the relationship of B cell-mediated immunity with disease severity and mortality in patients with COVID-19.

Study Design: In this retrospective cohort and single-centre study, 208 patients with laboratory-confirmed COVID-19 were recruited. A COVID-19 severity score, ranging from 0 to 10, was used to evaluate associations between various factors.

Seroprevalence of in Different Patient Groups in Our Hospital.

Objective: () is an obligate intracellular parasite. It is regarded as an important cause of morbidity and mortality in congenital contamination and immunosuppressive patients. This study aimed to determine the seropositivity of in various ages and patient groups, as well as to reveal the current immune status, especially in risk groups.

Relationship between Selective IgA Deficiency and COVID-19 Prognosis.

The prevalence and mortality rates of coronavirus disease 2019 (COVID-19) widely vary among populations. Mucosal immunity is the first barrier to the pathogen's entry into the body. Immunoglobulin A (IgA) is the primary antibody responsible for mucosal immunity.

Recurrent meningitis by Streptococcus pneumoniae in a girl with cochlear implant and head trauma despite 13-valent conjugated pneumococcal vaccine.

Recurrent bacterial meningitis is a very rare phenomenon in children. Skull base fractures and cochlear implant are the important predisposing factors and, Streptococcus pneumoniae is the most frequently isolated agent. Implementation of 13-valent conjugated pneumococcal vaccine (PCV13) has reduced the occurence of invasive pneumococcal diseases.

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.

Telmisartan ameliorates oxidative stress and subarachnoid haemorrhage-induced cerebral vasospasm.

Objectives: Growing evidence suggests that oxidative stress is one of the factors contributing to subarachnoid haemorrhage (SAH)-induced cerebral vasospasm. SAH-induced cerebral vasospam alters thioredoxin (Trx) cycle enzymes and thioredoxin-interacting protein (TXNIP) as an important endogenous antioxidant system. In this study, we have explored the effects of telmisartan on the vascular morphological changes, endothelial apoptosis, tissue oxidative stress status and the level of Trx cycle enzymes/ TXNIP in a rabbit SAH model.

A novel modified PAIR technique using a trocar catheter for percutaneous treatment of liver hydatid cysts: a six-year experience.

Purpose: We aimed to demonstrate the success and reliability of a novel puncture, aspiration, injection, and reaspiration (PAIR) technique in liver hydatid cysts.

Methods: Percutaneous treatment with ultrasonographic guidance was performed in 493 hepatic hydatid cysts in 374 patients. Patients were treated with a new PAIR technique by single puncture method using a 6F trocar catheter.

High thioredoxin reductase 1 expression in meningiomas undergoing malignant progression.

Thioredoxin (Trx) is a redox active protein that regulates several physiological and biochemical functions, such as growth, apoptosis and cellular defense. The function of Trx itself is regulated by thioredoxin reductase (TrxR). This study was designed to determine the expression of TrxR1 in meningioma tissues of different World Health Organization grades (grade I-III).

The presence of Torque teno virus in chronic obstructive pulmonary disease.

Torque Teno Virus (TTV) has been identified as transfusion-transmitted virus in humans, initially. Although TTV viremia is extremely common in the general population worldwide, there is no direct causal evidence linking TTV infection to specific clinical manifestations. Our hypothesis was that TTV might play a role in Chronic obstructive pulmonary disease (COPD) by inducing inflammatory mechanisms previously identified.

Tissue thioredoxin reductase-1 expression in astrocytomas of different grades.

Thioredoxin (Trx) is a redox active protein that regulates several physiological and biochemical functions, such as growth, apoptosis and cellular defense. The function of Trx itself is regulated by thioredoxin reductase (TrxR). Studies performed in a variety of human primary tumors have shown that thioredoxin reductase 1 (TrxR1) is overexpressed in tumoral tissues compared with corresponding normal tissues.

Comparison of the performance of TK system with LJ and MGIT methods in the diagnosis of tuberculosis.

Tuberculosis is a common infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis (TB). Various liquid or solid media are used for the diagnosis of tuberculosis. TK Rapid Mycobacterial Culture System has been developed recently.

A rare cause of bacteremia in a pediatric patient with Down syndrome: Sphingomonas paucimobilis.

Sphingomonas paucimobilis, is a yellow-pigmented, aerobic, non fermentative, gram negative motile bacillus. S. paucimobilis which is widely found in nature and hospital environments rarely cause serious or life threatening infections.

A comparison of immuncapture agglutination and ELISA methods in serological diagnosis of brucellosis.

Background: Different serological tests are used in serologic diagnosis of brucellosis. The most widely used of these are Standard Tube Agglutination and Coombs anti-brucella tests. Whereas ELISA Ig M and Ig G tests have been in use for a long time, immuncapture agglutination test has been recently introduced and used in serological diagnosis.

[Investigation of microbial colonization of computer keyboards used inside and outside hospital environments].

Computers have been commonly used in daily life and at hospitals by medical staff. This study was carried out to search the microbial colonization of computer keyboards and mice used inside and outside hospital environments. Keyboards and mice samples from a total of 398 computers were included to the study, in which 38 were used by doctors and nurses in the hospital clinics (Group 1); 32 by the medical faculty students (Group 2), and 328 by university students (Group 3) in the computer laboratories of Selcuk University, Konya (located at middle Anatolia).