Cervical Vestibular-Evoked Myogenic Potentials and Balance Testing in Children with Down Syndrome.

 Vestibular otolith function plays a major role in balance control.  To investigate the saccular and balance functions of children with Down syndrome (DS).  In total, 15 children with DS aged between 9 and 11 years were included.

A study on stress and resilience among hearing-impaired people during the COVID-19 pandemic.

Aim: The aim of the study is to determine the acute stress and psychological resilience level of people with hearing impairment during the COVID-19 pandemic and to investigate the relationship between the grade of hearing impairment, psychological resilience and perceived stress level in this period.

Methods: A cross-sectional study. A total of 135 hearing-impaired individuals using hearing aids (study group) and 125 healthy individuals (control group) participated.

Multifrequency multicomponent tympanometry in children with a history of ventilation tube insertion.

Objectives: To use multifrequency multicomponent tympanometry (MF-MCT) for evaluating the middle ear mechano-acoustics of children with a history of ventilation tube (VT) insertion and to determine the effects of tube insertion sequelae on middle ear function.

Methods: A prospective case-control study in a tertiary referral center involving 26 children (51 ears) aged 3-15 years. The children had undergone VT insertion surgery at least one-year previously and had no other known ear diseases.

Wideband tympanometry findings in inner ear malformations.

Objective: The deficits in the cochlea which is at the one end of the ear sound transfer system, may effect middle ear functions. Wideband typanometry (WBT) is frequently used to evaluate these transfer functions which play a crucial role in setting the impedance matching between the external ear and the cochlea. To this end, the aim of this study was to investigate the ear transfer functions in inner ear malformations via WBT, and to question whether these functions change depending on the types of inner ear malformation.

Regional differences of Turkey in risk factors of newborn hearing loss.

Objective: The aim of this study was to discover Turkish regional differences in the risk factors of newborn hearing loss.

Method: A multi-centered retrospective design was used. A total of 443 children, registered to the national newborn hearing screening programme, with bilateral hearing loss, from five different regions of Turkey, were evaluated in terms of the types of hearing loss, the degree of hearing loss, the types of risk factors, parental consanguinity, age at diagnosis and age of auditory intervention, respectively.

Serum YKL-40: a potential biomarker for psoriasis or endothelial dysfunction in psoriasis?

Psoriasis is a disease that can contribute to a risk of atherosclerosis. In several studies, impaired endothelial dysfunction (ED) is correlated with psoriasis. Serum YKL-40 is a new inflammatory biomarker of vascular damage, like ED and cardiovascular diseases.

The clinical significance of hematologic parameters in patients with sarcoidosis.

Background: Sarcoidosis is a multisystemic inflammatory granulomatous disease of unknown etiology. No suitable biomarkers are available to evaluate the prognosis of this disease, which still has an unpredictable clinical course. The aim of this study was to evaluate the potential clinical usefulness of hematologic markers.

The relationship between early reversibility test and maximal inspiratory pressure in patients with airway obstruction.

Maximal inspiratory pressure (MIP) is a marker for assessing the degree of respiratory muscle dysfunction. Muscle dysfunction represents a pathophysiological feature of chronic obstructive pulmonary disease. We aimed to determinate the MIP value in patients with airway obstruction, to evaluate the change in MIP with bronchodilator drug, and to show the relationship between the changes in MIP and disease characteristics.

Effect of zinc on the lipid peroxidation and the antioxidant defense systems of the alloxan-induced diabetic rabbits.

The effects of oral zinc supplementation on lipid peroxidation and the antioxidant defense system of alloxan (80-90 mg/kg)-induced diabetic rabbits were examined. Forty-five New Zealand male rabbits, 1 year old, weighing approximately 2.5 kg, were allocated randomly and equally as control, diabetic, and zinc-supplemented diabetic groups.

Feeding diets supplemented with zinc and vitamin A in laying hens: effects on histopathological findings and tissue mineral contents.

The effects of different dietary levels of zinc and vitamin A on tissue mineral accumulation and histopathological alterations were examined in laying hens. For this purpose, 130 Hisex brown laying hens aged 56 weeks were divided into two main groups. Each group of hens were fed on diets supplemented with two different levels of vitamin A (0-10,000 IU kg(-1)).