Mesenchymal stem cells (MSCs) are promising for clinical studies owing to their self-renewal, multipotency, trophic, and immunomodulatory properties. This study aimed to investigate the cytokine levels of human umbilical cord blood (CB) and Wharton's Jelly-(WJ) derived MSCs relevant to immune modulation on different passage levels in vitro. Umbilical CB MSCs were isolated using the ficoll-paque gradient method, and WJ-MSCs were isolated by the explant method.
View Article and Find Full Text PDFBackground: Mesenchymal stem cells (MSCs) have the ability to self-renew and are multi-potent. They are a primary candidate for cell-based therapy due to their potential anti-cancer effects. The aim of this study was to evaluate the in vitro anti-leukemic effect of Wharton's Jelly-derived MSC (WJ-MSC) on the leukemic cell lines K562 and HL-60.
View Article and Find Full Text PDFObjective: The aim of this study was to assess the effects of tranexamic acid on fracture healing in the rat tibia closed fracture model.
Methods: Sixty-four male Sprague-Dawley rats were included in this study, where closed fracture and intramedullary nailing were performed on their right tibial diaphyses. They were divided into 2 main groups, the experimental group, which was given weekly tranexamic acid injections, and the control group, which received no additional treatment.
Objectives: To develop a reproducible experimental animal model for sulcus vergeture in rabbits.
Study Design: Experimental animal study.
Material Method: We evaluated three methods of inducing sulcus in twelve New Zealand white rabbits to produce a sulcus model.
Objectives: The purpose of this study is to shorten the decellularization time of trachea by using combination of physical, chemical, and enzymatic techniques.
Methods: Approximately 3.5-cm-long tracheal segments from 42 New Zealand rabbits (3.
Background: Pseudoangiomatous stromal hyperplasia (PASH) is a benign lesion of myofibroblasts that is composed of a network of slit-like channels that resemble vascular spaces. The aims of this study were to document the frequency of PASH in core needle biopsy specimens (CNBS) of the breast, to describe which histopathologic findings coexist with PASH and to examine any endothelial cell differentiation.
Materials And Methods: We reevaluated hematoxylin and eosin-stained sections of all CNBS that were obtained during a 1-year period.
This paper presents a case report of an HIV-negative, supraglottic Kaposi's sarcoma patient. The 80-year-old male patient was admitted with complaints of hoarseness, difficulty in swallowing, and a stinging sensation in his throat for approximately six months. The endoscopic larynx examination revealed a lesion which had completely infiltrated the epiglottis, reached right aryepiglottic fold, was vegetating, pink and purple in color, multilobular, fragile, and shaped like a bunch of grapes, and partially blocked the bleeding airway passage.
View Article and Find Full Text PDFActa Orthop Traumatol Turc
February 2017
Objective: The aim of this study was to evaluate the impact of the timing of platelet-rich plasma (PRP) application on the healing of Achilles tendon injury in a rat model.
Methods: Fifty-four female Sprague-Dawley rats were divided into 4 groups: PRP preparation group (n=6); Achilles tendon tear and 150 µL of PRP received on the day following the injury (PRP day 0, group 1, n=16); Achilles tendon tear and 150 µL of PRP received on the third day following injury (day 3 , group 2, n=16); Achilles tendon tear and 150 µL of saline received on the day following injury (PRP day 0, group 3, n=16). Rats were sacrificed at 3 weeks.
Background: The purpose of this study was to show the efficacy of olfactory stem cells for injured facial nerve reconstruction in a rat model.
Methods: Olfactory stem cells were isolated from the olfactory mucosa of human participants. A 2-mm excision was performed on the right facial nerve of all rats.
Chondroblastoma is a highly destructive tumor originating from immature cartilage cells. Although chondroblastoma is defined as a benign tumor, it may exhibit malign tumor behaviors such as invasion or metastasis on neighboring structures. Magnetic resonance (MR) image is a solid mass lesion, which included heterogeneous hypointense in T2A and heterogeneous minimal hyperintense in T1A with destructive expansile characteristics and millimetric calcifications.
View Article and Find Full Text PDFPseudoangiomatous stromal hyperplasia (PASH) is a benign proliferative entity of mammary stroma. It is generally found as an incidental finding. It may rarely present as a palpable nodule.
View Article and Find Full Text PDFPrimary tumors of the paratesticular region are rare, with paratesticular sarcomas constituting a major proportion of these tumors, particularly in the elderly. The paratesticular region consists of mesothelial, various epithelial and mesenchymal cells and may therefore give rise to a number of tumors with various behaviors. Defining the association between the paratesticular mass and the testicle, and differentiation between benign and malignant masses using radiology is challenging, therefore the mass is usually considered to be malignant and radical orchiectomy with high ligation is performed.
View Article and Find Full Text PDFConventional tracheal reconstruction techniques are not successful at restoring functional units in situations with extensive damage involving more than half the length of the trachea. For the first time, we investigated in vivo tissue-engineered trachea regeneration from a decellularized cadaveric trachea matrix with seeded adult adipose tissue-derived mesenchymal stem cells (MSCs) and investigated the integration of the matrix into the recipient tracheal side. For the procedure, 1.
View Article and Find Full Text PDFCrusted scabies is a rare and highly contagious form of scabies that is characterized by uncontrolled proliferation of mites in the skin, extensive hyperkeratotic scaling, crusted lesions, and variable pruritus. We report the case of a 48-year-old man with an 11-year history of pruritic, hyperkeratotic, psoriasiform plaques and widespread erythematous papules that was diagnosed as crusted scabies.
View Article and Find Full Text PDFSplenic epidermoid cyst is a rare cystic disease of spleen. Primary cysts of the spleen lined by epithelium or endothelium are usually seen in young adults. A 23-year-old woman with abdominal distension presented at the surgery outpatients of our hospital.
View Article and Find Full Text PDFWound healing is an active and dynamic process that begins from the moment of injury. Any delay in the initiation of the response to injury can prolong the healing process. The aim of this study was to investigate the effects of topically applied fusidic acid and rifamycin on wound healing in a full-thickness wound model.
View Article and Find Full Text PDFObjective: To determine the effects of ibuprofen (Ibp) on the vessel proliferation and necrosis in a rat glioma model.
Study Design: Experimental, randomized interventional trial.
Place And Duration Of Study: 1st Neurosurgery Clinic in Bakirkoy Mental Diseases Hospital, Bakirkoy, Istanbul, Turkey, in the year 2010.
Abundant myxoid stroma rarely occurs in urothelial carcinomas, and may cause diagnostic challenges when cells with eosinophilic cytoplasm forming nests and cords in a myxoid background are seen, particularly in the absence of typical carcinomatous appearance. Microscopic examination of transurethral resection specimen of a 71-year-old male patient revealed non-cohesive oval or elongated tumor cells with eosinophilic cytoplasm arranged in cord-like filigree pattern in an abundant myxoid stroma. Immunohistochemically the tumor was positive for cytokeratin 7, cytokeratin 20, and 34BE12.
View Article and Find Full Text PDFPurpose: Temozolomide (TMZ) has anti-tumor activity in patients with malignant glioma. Hyperbaric oxygen (HBO) may enhance the efficacy of certain therapies that are limited because of the hypoxic tumor microenvironment. We examined the combined effects of TMZ-HBO in a rat glioma model.
View Article and Find Full Text PDFBackground/aims: Sclerosing cholangitis is a rare complication of Langerhans cell histiocytosis in children which can result in liver failure. This combination is even rarer in adults.
Case Report: We report a 65-year-old female who developed sclerosing cholangitis 4 years after the diagnosis of Langerhans cell histiocytosis.
Background: CD10 antigen is a 100-kDa-cell surface zinc metalloendopeptidase and it is expressed in a variety of normal and neoplastic lymphoid and nonlymphoid tissues. The aim of this study was to evaluate CD10 expression in urothelial carcinoma of the urinary bladder and to determine the correlation between immunohistochemical (IHC) CD10 expression and histopathologic parameters including grade and stage.
Methods: 371 cases of urothelial bladder carcinomas, all from transurethral resections, were included in this study.
Purpose: To investigate the effect of Achilles tenotomy performed percutaneously and by mini-open methods on tendon healing and final strength.
Materials And Methods: In two groups, each consisting of 14 rats, percutaneous and mini-open techniques in Achilles tenotomy were compared in terms of biomechanical, histological and gross properties.
Results: In the gross evaluation, it was observed that an obvious thickening and adhesion to the subcutaneous tissue of the healing tendon were observed in nearly all rats in which the mini-open technique was performed.