Sensitization of Children to Storage Mites in Kutahya, Turkey

Cihangir Akdemir,Erdogan Soyucen 대한기생충학열대의학회 2009 The Korean Journal of Parasitology Vol.47 No.4

Granulocyte-colony stimulating factor decreases the extent of ovarian damage caused by cisplatin in an experimental rat model

Ali Akdemir,Burak Zeybek,Levent Akman,Ahment Mete Ergenoglu,Ahmet Ozgur Yeniel,Oytun Erbas,Altug Yavasoglu,Mustafa Cosan Terek,Dilek Taskiran 대한부인종양학회 2014 Journal of Gynecologic Oncology Vol.25 No.4

Objective: To investigate whether granulocyte-colony stimulating factor (G-CSF) can decrease the extent of ovarian follicle loss caused by cisplatin treatment. Methods: Twenty-one adult female Sprague-Dawley rats were used. Fourteen rats were administered 2 mg/kg/day cisplatin by intraperitoneal injection twice per week for five weeks (total of 20 mg/kg). Half of the rats (n=7) were treated with 1 mL/kg/day physiological saline, and the other half (n=7) were treated with 100 μg/kg/day G-CSF. The remaining rats (n=7, control group) received no therapy. The animals were then euthanized, and both ovaries were obtained from all animals, fixed in 10% formalin, and stored at 4oC for paraffin sectioning. Blood samples were collected by cardiac puncture and stored at -30oC for hormone assays. Results: All follicle counts (primordial, primary, secondary, and tertiary) and serum anti-Müllerian hormone levels were significantly increased in the cisplatin+G-CSF group compared to the cisplatin+physiological saline group. Conclusion: G-CSF was beneficial in decreasing the severity of follicle loss in an experimental rat model of cisplatin chemotherapy.

Predictive factors affecting morcellation efficiency in holmium laser enucleation of the prostate

Hakan Anıl,Ahmet Güzel,Ali Yıldız,Serkan Akdemir,Kaan Karamık,Murat Arslan 대한비뇨의학회 2023 Investigative and Clinical Urology Vol.64 No.4

Purpose: To determine the factors affecting morcellation efficiency in holmium laser enucleation of the prostate (HoLEP) surgery. Materials and Methods: Patients who underwent HoLEP surgery by a single surgeon between 2018 and 2022 were included in the study. Our primary outcome of interest in this study was morcellation efficiency. The effect of preoperative and perioperative variables on morcellation efficiency was evaluated with linear regression analysis. Results: A total of 410 patients were included in the study. The mean morcellation efficiency was 6.95±1.70 g/min. Univariable and multivariable linear regression analysis was performed to identify factors affecting morcellation efficiency. Presence of the “beach ball” effect (small, round prostatic tissue fragments that are fibrotic and difficult to morcellate), the learning curve, resectoscope sheath type, prostate-specific antigen (PSA) density, morcellated tissue weight, and the presence of prostate calcification were found to be independent predictive factors (β=-1.107, 95% CI: -1.59 to -0.55, p<0.001; β=-0.514, 95% CI: -0.85 to -0.17, p=0.003; β=-0.394, 95% CI: -0.65 to -0.13, p=0.003; β=-0.302, 95% CI: -0.59 to -0.09, p=0.043; β=0.062, 95% CI: 0.05 to 0.06, p<0.001; β=-0.329, 95% CI: -0.55 to -0.10, p=0.004; respectively). Conclusions: This study reports that presence of the beach ball effect, the learning curve, small resectoscope sheath, PSA density, and presence of prostate calcification negatively affect morcellation efficiency. On the contrary, morcellated tissue weight has a linear relationship with morcellation efficiency.

The Technical and Financial Effects of Parenteral Supplementation with Selenium and Vitamin E during Late Pregnancy and the Early Lactation Period on the Productivity of Dairy Cattle

T. Bayril,A.S. Yildiz,F. Akdemir,C. Yalcin,M. Kose,O. Yilmaz 아세아·태평양축산학회 2015 Animal Bioscience Vol.28 No.8

This study aimed to determine the effects of parenteral selenium (Se) and vitamin E supplementation on economic impact, milk yield, and some reproductive parameters in high-yield dairy cows in the dry period and in those at the beginning of lactation. At the beginning of the dry period, cows (n = 323) were randomly divided into three groups as follows: Treatment 1 (T1), Treatment 2 (T2), and Control (C). Cows in group T1 received this preparation 21 days before calving and on calving day, and cows in group T2 received it only on calving day. The cows in the control group did not receive this preparation. Supplementation with Se increased Se serum levels of cows treated at calving day (p<0.05). Differences in milk yield at all weeks and the electrical conductivity values at the 8th and 12th weeks were significant (p<0.05). Supplementation with Se and Vitamin E decreased the incidence of metritis, the number of services per conception and the service period, but had no effects on the incidence of retained fetal membrane. A partial budgeting analysis indicated that Se supplementation was economically profitable; cows in group T1 averaged 240.6$ per cow, those in group T2 averaged 224.6$ per cow. Supplementation with Se and Vitamin E has been found to increase serum Se levels, milk yield, and has positive effects on udder health by decreasing milk conductivity values and incidence of sub-clinical mastitis.

The Effects of Difumarate Salt S-15176 after Spinal Cord Injury in Rats

Erdogan, Hakan,Tuncdemir, Matem,Kelten, Bilal,Akdemir, Osman,Karaoglan, Alper,Tasdemiroglu, Erol The Korean Neurosurgical Society 2015 Journal of Korean neurosurgical society Vol.57 No.6

Objective : In the present study we analyzed neuroprotective and antiapoptotic effect of the difumarate salt S-15176, as an anti-ischemic, an antioxidant and a stabilizer of mitochondrial membrane in secondary damage following spinal cord injury (SCI) in a rat model. Methods : Three groups were performed with 30 Wistar rats; control (1), trauma (2), and a trauma+S-15176 (10 mg/kg i.p., dimethyl sulfoxide) treatment (3). SCI was performed at the thoracic level using the weight-drop technique. Spinal cord tissues were collected following intracardiac perfusion in 3rd and 7th days of posttrauma. Hematoxylin and eosin staining for histopatology, terminal deoxynucleotidyl transferase dUTP nick end labeling assay for apoptotic cells and immunohistochemistry for proapoptotic cytochrome-c, Bax and caspase 9 were performed to all groups. Functional recovery test were applied to each group in 3rd and 7th days following SCI. Results : In trauma group, edematous regions, diffuse hemorrhage, necrosis, leukocyte infiltration and severe degeneration in motor neurons were observed prominently in gray matter. The number of apoptotic cells was significantly higher (p<0.05) than control group. In the S-15176-treated groups, apoptotic cell number in 3rd and 7th days (p<0.001), also cytochrome-c (p<0.001), Bax (p<0.001) and caspase 9 immunoreactive cells (p<0.001) were significantly decreased in number compared to trauma groups. Hemorrhage and edema in the focal areas were also noticed in gray matter of treatment groups. Results of the locomotor test were significantly increased in treatment group (p<0.05) when compared to trauma groups. Conclusion : We suggest that difumarate salt S-15176 prevents mitochondrial pathways of apoptosis and protects spinal cord from secondary injury and helps to preserve motor function following SCI in rats.

Axon Count and Sympathetic Skin Responses in Lumbosacral Radiculopathy

Hacer Erdem Tilki,Melek Coşkun,Neslihan Ünal Akdemir,Lütfi İncesu 대한신경과학회 2014 Journal of Clinical Neurology Vol.10 No.1

Background and Purpose Electrodiagnostic studies can be used to confirm the diagnosis oflumbosacral radiculopathies, but more sensitive diagnostic methods are often needed to measure the ensuing motor neuronal loss and sympathetic failure. Methods Twenty-six patients with lumbar radiculopathy and 30 controls were investigatedusing nerve conduction studies, motor unit number estimation (MUNE), testing of the sympathetic skin response (SSR), quantitative electromyography (QEMG), and magnetic resonancemyelography (MRM). Results Using QEMG as the gold standard, the sensitivity and specificity of MUNE for the abductor hallucis longus muscle were 71.4% and 70%, respectively. While they were 75% and 68.8%, respectively, when used MRM as gold standard. The sensitivity and specificity ofMUNE for the extensor digitorum brevis muscle were 100% and 84.1%, respectively, when theperoneal motor amplitude as the gold standard. The SSR latency was slightly longer in the patients than in the controls. Conclusions MUNE is a simple and sensitive test for evaluating autonomic function and for diagnosing lumbosacral radiculopathy in patients. MUNE could be used routinely as a guide for the rehabilitation of patients with radiculopathies. SSR measurements may reveal subtle sympathetic abnormalities in patients with lumbosacral radiculopathy.

The Technical and Financial Effects of Parenteral Supplementation with Selenium and Vitamin E during Late Pregnancy and the Early Lactation Period on the Productivity of Dairy Cattle

Bayril, T.,Yildiz, A.S.,Akdemir, F.,Yalcin, C.,Kose, M.,Yilmaz, O. Asian Australasian Association of Animal Productio 2015 Animal Bioscience Vol.28 No.8

This study aimed to determine the effects of parenteral selenium (Se) and vitamin E supplementation on economic impact, milk yield, and some reproductive parameters in high-yield dairy cows in the dry period and in those at the beginning of lactation. At the beginning of the dry period, cows (n = 323) were randomly divided into three groups as follows: Treatment 1 (T1), Treatment 2 (T2), and Control (C). Cows in group T1 received this preparation 21 days before calving and on calving day, and cows in group T2 received it only on calving day. The cows in the control group did not receive this preparation. Supplementation with Se increased Se serum levels of cows treated at calving day (p<0.05). Differences in milk yield at all weeks and the electrical conductivity values at the 8th and 12th weeks were significant (p<0.05). Supplementation with Se and Vitamin E decreased the incidence of metritis, the number of services per conception and the service period, but had no effects on the incidence of retained fetal membrane. A partial budgeting analysis indicated that Se supplementation was economically profitable; cows in group T1 averaged 240.6$ per cow, those in group T2 averaged 224.6$ per cow. Supplementation with Se and Vitamin E has been found to increase serum Se levels, milk yield, and has positive effects on udder health by decreasing milk conductivity values and incidence of sub-clinical mastitis.

Relation between Left Atrial Remodeling in Young Patients with Cryptogenic Stroke and Normal Inter-atrial Anatomy

Mustafa Gökhan Vural,Suha Cetin,Murat Yilmaz,Ramazan Akdemir,Huseyin Gunduz 대한뇌졸중학회 2015 Journal of stroke Vol.17 No.3

Background and Purpose To investigate an association between left atrial (LA) structural and P wave dispersion (PWD) during sinus rhythm, and electrical remodeling in cryptogenic stroke (CS) patients. Methods Forty CS patients and 40 age- and sex-matched healthy controls were enrolled. P wave calculations were based on 12-lead electrocardiography (ECG) at a 50-mm/s-paper speed with an amplitude of 10 mm/mV. Difference between the maximum and minimum P wave duration was the P wave dispersion (PWD=Pmax-Pmin). LA deformation was evaluated by speckle tracking echocardiography within 3 days of the acute event. Results PWD was 30.1±7.0 ms and 27.4±3.5 ms in CS and control group (P=0.02), whereas LA maximum volume index [LAVImax] was 20.4±4.5 mL/m2 and 19.9±2.4 mL/m2 in CS and control group, respectively (P=0.04). While global peak LA strain was [pLA-S] (LA reservoir function) 41.4±6.3% and 44.5±7.1% in CS and control group, (P=0.04), global peak late diastolic strain rate values [pLA-SRa] (LA pump function) were 2.5±0.4% and 2.9±0.5% in CS and control group, respectively (P=0.001). A mild and a strong negative correlation between global pLA-S and LAVImax (r=-0.49; P<0.01), and between PWD and global pLA-S (r=-0.52; P<0.01), respectively, was observed in CS. Conclusions Increased PWD is associated with impaired LA mechanical functions and enlargement, and involved in the pathophysiology of AF or an AF-like physiology in CS.

Meningocele with Cervical Dermoid Sinus Tract Presenting with Congenital Mirror Movement and Recurrent Meningitis

Fatih Serhat. Erol,Cahide Topsakal,M.Faik Ozveren,Ismail Akdemir,Bengu Cobanoglu 연세대학교의과대학 2004 Yonsei medical journal Vol.45 No.SUP

Dermoid sinuses and meningoceles are seldom encountered in the cervical region. Besides, to the best of our knowledge, the coexistence of these types of congenital abnormalities with recurrent meningitis, as well as with mirror movement, has never been reported before. A 14-year-old female with the diagnosis of recurrent meningitis was referred to our clinic from the Department of Infectious Diseases. She had a cervical meningocele mass that was leaking cerebro-spinal fluid (CSF) and an associated mirror movement symptom. Spina bifida, dermoid sinus and meningocele lesions were demonstrated at the C2 level on computed tomography (CT) and magnetic resonance imaging (MRI). She underwent an operation to remove the sinus tract together with the sac, and at the same time the tethered cord between the sac base and the distal end of the spinal cord was detached. The diagnosis of dermoid sinus and meningocele was confirmed histopathologically. These kinds of congenital pathologies in the cervical region may also predispose the patient to other diseases or symptoms. Herein, a case of meningocele associated with cervical dermoid sinus tract which presented with recurrent meningitis and a rare manifestation of mirror movement is discussed. Neurosurgeons should consider the possible coexistence of mirror movement and recurrent meningitis in the treatment of these types of congenital abnormalities.

Fabrication and characterization of bismuth oxideeholmia nanofibers and nanoceramics

Arda Aytimur,Serhat Koçyigit,Ibrahim Uslu,Senol Durmusoglu,Ahmet Akdemir 한국물리학회 2013 Current Applied Physics Vol.13 No.3

In this article, a novel and simple method to produce both boron doped and undoped holmia stabilized bismuth oxide nanoceramic materials has been put forward. Boron doped and undoped poly (vinyl alcohol)/bismutheholmia acetate nanofibers were produced using the electrospinning technique and were calcined at 850 C afterward in order to obtain nanopowder. The characteristics of the nanofibers were investigated with FT-IR, XRD, and SEM. XRD analyses showed that boron undoped holmia stabilized bismuth oxide nanopowders have the face-centered cubic structure (d-phase), and that the incorporation of boron atoms into the composite prevents the nucleus formation and turns the structure into a more amorphous glassy form. The SEM micrographs of the fibers showed that the addition of boron results in the formation of cross-linked bright-surfaced fibers. The average fiber diameters for electrospun boron doped and undoped PVA/BieHo acetate nanofibers were calculated using the ImageJ software as 102 nm and 171 nm, respectively.