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Bosnian Journal of Basic Medical Sciences

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https://www.readbyqxmd.com/read/28432860/high-ki-67-expression-is-associated-with-prolactin-secreting-pituitary-adenomas
#1
Bogdan Bălinişteanu, Anca Maria Cîmpean, Amalia Raluca Ceauşu, Ana Silvia Corlan, Eugen Melnic, Marius Raica
Pituitary adenomas represent the third most common primary intracranial tumor in neurosurgical practice. To understand the biological behaviour of the pituitary adenomas previous studies have determined the tumor proliferation rate using monoclonal antibodies targeted against the Ki-67 antigen. The aim of this study was to correlate the Ki-67 index with hormonal profiles of pituitary adenomas. The study included 50 pituitary adenoma cases. For histopathologic evaluation, the sections were stained with routine hematoxylin and eosin method...
April 22, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28426398/k-ras-and-n-ras-mutations-in-testicular-germ-cell-tumors
#2
Bekir Muhammet Hacioglu, Hilmi Kodaz, Bulent Erdogan, Ahmet Cinkaya, Ebru Tastekin, Ilhan Hacibekiroglu, Esma Turkmen, Osman Kostek, Ezgi Genc, Sernaz Uzunoglu, Irfan Cicin
Testicular cancer is a relatively rare tumor type, accounting for approximately 1% of all cancers in men. However, among men aged between 15 and 40 years, testicular cancer is the most commonly diagnosed malignancy. Testicular germ cell tumors (TGCTs) are classified as seminoma and non-seminoma. The RAS oncogene controls several cellular functions, including cell proliferation, apoptosis, migration, and differentiation. Thus, RAS signaling is important for normal germ cell development. Mutations of the Kirsten RAS (K-RAS) gene are present in over 20% of all cancers...
April 20, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28422623/knee-stiffness-and-viscosity-new-implementation-and-perspectives-in-prosthesis-development
#3
Klemen Bohinc, Nejc Vantur, Drago Torkar, Tomaž Lampe, Marija Hribernik, Miroljub Jakovljević
The pendulum test is a method applied to measure passive resistance of the knee. A new and simple pendulum test with instrumentation based on infrared camera was used to evaluate knee stiffness and viscosity on a female human cadaver. The stiffness and viscosity were calculated based on the kinetic data. During the measurements, the periarticular and intraarticular soft tissue of the knee was gradually removed to determine the stiffness and viscosity as a function of the tissue removal rate. The measurements showed that the removal of tissue around the joint reduces the damping of leg oscillation, and therefore decreases the stiffness and viscosity...
April 19, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28418828/a-comparison-of-blood-and-cerebrospinal-fluid-cytokines-il-1%C3%AE-il-6-il-18-tnf-%C3%AE-in-neonates-with-perinatal-hypoxia
#4
Darinka Šumanović-Glamuzina, Filip Čulo, Melanie Ivana Čulo, Paško Konjevoda, Marjana Jerković-Raguž
Perinatal hypoxia-ischemia is a specific and important pathological event in neonatal care practice. The data on relationship between the concentrations of cytokines in blood and cerebrospinal fluid (CSF) and perinatal brain injury are scarce. The aim of this study is to evaluate changes in interleukin (IL-1β, IL-6, and IL-18) and tumor necrosis factor alpha (TNF-α) levels in newborns with perinatal hypoxia (PNH). CSF and serum samples of 35 term and near-term (35-40 weeks) newborns with PNH, at the age of 3-96 hours, were analyzed using enzyme-linked immunosorbent assay...
April 18, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28397609/time-course-of-global-gene-expression-alterations-in-candida-albicans-during-infection-of-hela-cells
#5
Yi-Bing Lan, Yi-Zhou Huang, Fan Qu, Juan-Qing Li, Lin-Juan Ma, Jie Yan, Jian-Hong Zhou
Candida albicans (C. albicans) is an opportunistic fungus that quickly adapts to various microniches. It causes candidiasis, a common fungal infection for which the pathogenic mechanism has not been elucidated yet. To explore the pathogenic mechanism of candidiasis we used several methods, including microscopic observation of morphological changes of HeLa cells and fungus, analysis of differentially expressed genes using gene chips, and a series of biological and bioinformatic analyses to explore genes that are possibly involved in the pathogenesis of C...
April 11, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28378694/the-role-of-narrow-band-imaging-in-colorectal-polyp-detection
#6
Irina Ioana Vișovan, Marcel Tanțău, Oliviu Pascu, Lidia Ciobanu, Alina Tanțău
Colonoscopic detection and removal of polyps represent the most important prevention method for colorectal cancer. We aimed to investigate the diagnostic yield of narrow band imaging (NBI) colonoscopy for polyp detection compared with standard colonoscopy. In this prospective study, 505 patients that underwent total colonoscopy were randomized into two groups: 226 patients in NBI group and 279 in non-NBI group (standard colonoscopy). The primary endpoints were polyp detection rate (PDR) and adenoma detection rate (ADR) in both groups...
April 5, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28368239/apoptosis-of-pancreatic-%C3%AE-cells-in-type-1-diabetes
#7
REVIEW
Tatsuo Tomita
Type 1 diabetes mellitus (T1DM) results from autoimmune destruction of pancreatic β-cells after an asymptomatic period over years. Insulitis activates antigen presenting cells, which trigger activating CD4+ helper-T cells, releasing chemokines/cytokines. Cytokines activate CD8+ cytotoxic -T cells, which lead to β-cell destruction. Apoptosis pathway consists of extrinsic (receptor-mediated) and intrinsic (mitochondria-driven) pathway. Extrinsic pathway includes Fas pathway to CD4+-CD8+ interaction, whereas intrinsic pathway includes mitochondria-driven pathway at a balance between pro-apoptotic B-cell lymphoma (Bcl) 2 and Bcl-xL and anti-apoptotic Bad, Bid, and Bik proteins...
April 3, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28284178/relationship-between-lymphovascular-invasion-and-clinicopathological-features-of-papillary-thyroid-carcinoma
#8
Atakan Sezer, Mehmet Celik, Buket Yilmaz Bulbul, Nuray Can, Ebru Tastekin, Semra Ayturk, Funda Ustun, Sibel Guldiken, Necdet Sut
Lymphovascular invasion (LVI) is an important prognostic factor in various solid tumors, however, data on the association between LVI and thyroid carcinomas are limited. In this study, we evaluated the relationship between LVI and clinicopathological features of papillary thyroid carcinoma (PTC). Six hundred seventy-eight patients diagnosed with PTC between 2012 and 2015 were included into the study. Patients were classified based on the presence or absence of LVI. Gender, age, ultrasonography (US), tumor size and multifocality, BRAFV600E mutation, perineural and capsular invasion, extrathyroid extension (ETE), nodal metastasis, and recurrences were evaluated, and risk analysis was performed for each parameter...
March 10, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28284177/meta-analysis-of-interleukin-6-8-and-10-between-off-pump-and-on-pump-coronary-artery-bypass-groups
#9
REVIEW
Fanbo Meng, Jianghong Ma, Wei Wang, Baisong Lin
This study aimed to evaluate the role of off-pump coronary artery bypass (CAB) surgery on the decrease of postoperative inflammatory responses in patients. We systematically searched databases of PubMed and Embase to select the related studies. Interleukin (IL) 6, 8, and 10 were used as outcomes and pooled analysis was performed using R 3.12 software. Standardized mean differences (SMDs) and their 95% confidence intervals (95% CIs) were considered as effect estimates. A total of 27 studies, including 1340 participants, were recruited in this meta-analysis...
March 10, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28278128/cancer-metastasis-tricks-of-the-trade
#10
REVIEW
Rabia Zeeshan, Zeeshan Mutahir
Decades of cancer research have unraveled genetic, epigenetic and molecular pathways leading to plausible therapeutic targets; many of which hold great promise in improving clinical outcomes. Metastatic tumors become evident early on and are one of the major causes of cancer-related fatalities worldwide. This review depicts the sequential events of cancer metastasis. Genetic and epigenetic heterogeneity influences local tumor cell invasion, intravasation, survival in circulation, extravasation and colonization to distant sites...
March 9, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28273031/new-monocyte-locomotion-inhibitory-factor-analogs-protect-against-cerebral-ischemia-reperfusion-injury-in-rats
#11
Xiaoping Wang, Chao Wang, Yan Yang, Jingman Ni
Monocyte locomotion inhibitory factor (MLIF) is an oligopeptide with anti-inflammatory properties. The carboxyl-terminal end group Cys-Asn-Ser serves as the pharmacophore of MLIF. The aim of this study was to investigate the neuroprotective effects of two new synthetic analogs, Arg-Cys-Asn-Ser and D-Cys-Asn-Ser, on focal cerebral ischemia, which were designed and synthesized to increase the penetrability and enzymatic stability of Cys-Asn-Ser. Ninety-one male Sprague-Dawley rats were randomly divided into six groups: I - Sham; II - Ischemia-reperfusion (I/R); III - Nimodipine; IV - Cys-Asn-Ser; V - D-Cys-Asn-Ser; and VI - Arg-Cys-Asn-Ser...
February 27, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28273032/the-efficacy-of-modified-docetaxel-cisplatin-5-fluorouracil-regimen-as-first-line-treatment-in-patients-with-alpha-fetoprotein-producing-gastric-carcinoma
#12
Yakup Bozkaya, Mutlu Doğan, Ozan Yazıcı, Gökmen Umut Erdem, Nebi Serkan Demirci, Nurullah Zengin
Alpha-fetoprotein producing gastric carcinoma (AFP-PGC) is a rare cancer for which limited data on the clinicopathological features and treatment modalities exist. The aim of this study was to compare the efficacy of modified docetaxel-cisplatin-5-fluorouracil (mDCF) as the first-line chemotherapy regimen in metastatic AFP-PGC and non-AFP-PGC. The patients diagnosed with metastatic gastric cancer who were given mDCF as first-line therapy were retrospectively reviewed. The patients with a basal serum AFP level over 9 ng/ml were defined as AFP-PGC patients...
February 25, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28178430/nitric-oxide-synthesis-promoting-effects-of-valsartan-in-human-umbilical-vein-endothelial-cells-via-the-akt-adenosine-monophosphate-activated-protein-kinase-endothelial-nitric-oxide-synthase-pathway
#13
Yingshuai Zhao, Liuyi Wang, Shanshan He, Xiaoyan Wang, Weili Shi
Valsartan (VAL), an antagonist of angiotensin II receptor type 1, has antihypertensive and multiple cardiovascular protective effects. The pleiotropic functions of VAL are related to the increased synthesis and biological activity of intravascular nitric oxide (NO). In this study, the role and mechanisms of VAL in the synthesis of NO were examined in human umbilical vein endothelial cells (HUVECs). Ten µmol/L of VAL was used to treat EA.hy926 cells for 30 minutes, 1, 3, 6, 12, and 24 hours, and three concentrations of VAL (i...
February 8, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28146420/a-silent-mutation-in-human-alpha-a-crystallin-gene-in-patients-with-age-related-nuclear-or-cortical-cataract
#14
Bharani K Mynampati, Thungapathra Muthukumarappa, Sujata Ghosh, Jagat Ram
A cataract is a complex multifactorial disease that results from alterations in the cellular architecture, i.e. lens proteins. Genes associated with the development of lens include crystallin genes. Although crystallins are highly conserved proteins among vertebrates, a significant number of polymorphisms exist in human population. In this study, we screened for polymorphisms in crystallin alpha A (CRYAA) and alpha B (CRYAB) genes in 200 patients over 40 years of age, diagnosed with age-related cataract (ARC; nuclear and cortical cataracts)...
February 1, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28135566/anatomical-and-functional-outcomes-of-scleral-buckling-versus-primary-vitrectomy-in-pseudophakic-retinal-detachment
#15
Veysel Cankurtaran, Mehmet Citirik, Mert Simsek, Kemal Tekin, Mehmet Yasin Teke
Retinal detachment is the separation of the sensory retina from the retinal pigment epithelium by subretinal fluid. There are several types of retinal re-attachment surgery, including scleral buckling (SB), pneumatic retinopexy, and vitrectomy (with or without SB). The objective of this study was to compare anatomical and visual outcomes between patients with pseudophakic rhegmatogenous retinal detachment (RRD) who underwent pars plana vitrectomy (PPV) with silicone oil (SO) or perfluoropropane (C3F8) gas tamponade and pseudophakic RRD patients who underwent SB surgery...
February 21, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28086064/dose-and-time-dependent-effects-of-clodronate-on-orthodontic-tooth-movement
#16
Enita Nakaš, Tomislav Lauc, Alisa Tiro, Vildana Džemidžić, Amila Zukanović, Miljenko Franić, Vladimir Ivković
Orthodontic tooth movement is the result of bone remodeling that occurs in periodontal ligament and alveolar bone tissue as a response to mechanical loading of the tooth. The aim of this study is to investigate the time- and dose-response effects of locally administered clodronate on tooth movement. Sixty Wistar rats were randomly assigned to 4 groups of 15 specimens: E1 - application of 10 mMol of clodronate in 3-day intervals; E2 - application of 2.5 mMol of clodronate in 3-day intervals; E3 - application of 10 mMol of clodronate in 7-day intervals; E4 - application of 2...
February 21, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28027456/immunohistochemical-localization-of-ionotropic-glutamate-receptors-in-the-rat-red-nucleus
#17
Zehra Minbay, Sema Serter Kocoglu, Duygu Gok Yurtseven, Ozhan Eyigor
In this study, we aimed to determine the presence as well as the diverse distribution of N-methyl-D-aspartate (NMDA) and non-NMDA glutamate receptor subunits in the rat red nucleus. Using adult Sprague-Dawley rats as the experimental animals, immunohistochemistry was performed on 30 µm thick coronal brain sections with antibodies against α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (GluA1-4), kainate (GluK1, GluK2/3, and GluK5), and NMDA (GluN1 and GluN2A) receptor subunits. The results showed that all ionotropic glutamate receptor subunits are expressed in the red nucleus...
February 21, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28027455/analysis-of-pulmonary-surfactant-by-fourier-transform-infrared-spectroscopy-after-exposure-to-sevoflurane-and-isoflurane
#18
Vilena Vrbanović Mijatović, Ljiljana Šerman, Ozren Gamulin
Pulmonary surfactant, consisting primarily of phospholipids and four surfactant-specific proteins, is among the first structures that is exposed to inhalation anesthetics. Consequently, changes of pulmonary surfactant due to this exposure could cause respiratory complications after long anesthetic procedures. Fourier transform infrared (FTIR) spectroscopy was used to explore the effects of two inhalation anesthetics, sevoflurane and isoflurane, on a commercially available pulmonary surfactant. The research was primarily focused on the effect of anesthetics on the lipid component of the surfactant...
February 21, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28027454/apocrine-carcinoma-of-the-breast-a-brief-update-on-the-molecular-features-and-targetable-biomarkers
#19
REVIEW
Semir Vranic, Rebecca Feldman, Zoran Gatalica
Apocrine carcinoma of the breast is a rare, primary breast cancer characterized by the apocrine morphology, estrogen receptor-negative and androgen receptor-positive profile with a frequent overexpression of Her-2/neu protein (~30%). Apart from the Her-2/neu target, advanced and/or metastatic apocrine carcinomas have limited treatment options. In this review, we briefly describe and discuss the molecular features and new theranostic biomarkers for this rare mammary malignancy. The importance of comprehensive profiling is highlighted due to synergistic and potentially antagonistic molecular events in the individual patients...
February 21, 2017: Bosnian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28027453/pethidine-efficacy-in-achieving-the-ultrasound-guided-oblique-subcostal-transversus-abdominis-plane-block-in-laparoscopic-cholecystectomy-a-prospective-study
#20
RANDOMIZED CONTROLLED TRIAL
Caius Mihai Breazu, Lidia Ciobanu, Adrian Bartos, Raluca Bodea, Petru Adrian Mircea, Daniela Ionescu
Pethidine is a synthetic opioid with local anesthetic properties. Our goal was to evaluate the analgesic efficacy of pethidine for achieving the ultrasound-guided oblique subcostal transversus abdominis plane (OSTAP) block in laparoscopic cholecystectomy. This prospective, double-blind study included 79 patients of physical status I and II according to American Society of Anesthesiologists, scheduled for elective laparoscopic cholecystectomy. The patients were randomly allocated into three groups, depending on the drug used to achieve preoperative bilateral OSTAP block: 1) OSTAP-Placebo (treated with normal saline); 2) OSTAP-Bupivacaine (treated with 0...
February 21, 2017: Bosnian Journal of Basic Medical Sciences
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