Publications by authors named "Biro C"

Background: Cisplatin (CDDP) remains a key agent in the treatment of muscle-infiltrating bladder carcinoma (MIBC). However, a proportion of MIBC patients do not respond to chemotherapy, which may be caused by the increased repair of CDDP-induced DNA damage. The purpose of this study was to explore the prognostic value of proteins involved in nucleotide excision repair (NER) and translesion DNA synthesis (TLS) in MIBC patients.

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Tall cell carcinoma with reverse polarity (TCCRP) is a rare special type of breast epithelial neoplasm presented by columnar cells with opposite nuclear polarity, solid and solid-papillary architecture, and frequent IDH2 gene alterations. Hereby, the authors present three cases of TCCRP in women aged 56, 66 and 67 years with maximum tumour sizes of 29 mm, 10 mm and 8 mm. Tumours showed histomorphological characteristics of TCCRP supported by immunohistochemical profile of tumour cells, in which positive expression of CK7, CK5/6, GCDFP15, mammaglobin, GATA3 and calretinin and negativity of CK14, p63, TTF1, thyroglobulin and neuroendocrine markers were demonstrated.

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Introduction: The authors audited the outcomes of various surgical interventions employed to fix the dislocations of the acromioclavicular joint in their unit. This resulted in changing their method to treat this condition.

Objective: Finding a technique that results in the best functional stability of the injured joint while preserving its physiological function.

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Mastitis is an infectious or noninfectious inflammation of the mammary glands. The most important differential diagnosis of mastitis is an inflammatory carcinoma, which can be excluded by imaging and a biopsy. Noninfectious mastitis can also occur during pregnancy and knowledge of the possible differential diagnoses is essential for appropriate diagnostics and treatment.

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A high-molecular weight hyaluronan is oxidatively degraded by Cu(II) ions and ascorbate-the so called Weissberger biogenic oxidative system-which is one of the most potent generators of reactive oxygen species, namely OH radicals. Ergothioneine, hercynine, or histidine were loaded into chitosan/hyaluronan composite membranes to examine their effect on skin wound healing in ischemic rabbits. We also explored the ability of ergothioneine, hercynine, or histidine to inhibit hyaluronan degradation.

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High altitude aerial surveys have the potential to improve disturbance-free data collection in wildlife research, but previously, bird species were not recognizable in high-altitude orthophotos. This method of aerial surveying is effective and can be repeated frequently due to its low cost; it also has the additional advantage of being able to monitor the status of protected areas. In the case of waterbirds, due to the low vegetation coverage, aerial remote sensing is an exceptionally effective technique for surveying populations and detecting nests.

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Natural selection should favor the transfer of immune competence from one generation to the next in a context-dependent manner. Transgenerational immune priming (TGIP) is expected to evolve when species exploit pathogen-rich environments and exhibit extended overlap of parent-offspring generations. Dampwood termites are hemimetabolous, eusocial insects (Blattodea: Archeotermopsidae) that possess both of these traits.

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The pineal gland (glandula pinealis) is neuroendocrine gland located at the epithalamus of the brain secreting melatonin. The aim of this study was to explore effects of prenatal hypoxia in rats at the age of 33 weeks on the occurrence of pineal gland calcification. Distribution and chemical composition of calcerous material by light, scanning and transmission electron microscopy was investigated.

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Novel wound dressings composed of chitosan (Ch) and hyaluronan (HA) loaded with tiopronin or captopril as antiinflammatory drugs were prepared. Composite biomembranes were examined in skin wounds of ischemic rabbits with the aim to accelerate the process of healing. The results proved that the biomembranes composed of Ch/HA/tiopronin or Ch/HA/captopril facilitated healing of skin wounds compared to untreated animals and animals treated with Ch/HA membranes.

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Two self-associating biopolymers, namely chitosan (Ch) and a high-molar-mass hyaluronan (HA), were used to prepare membranes with the aim to protect and to enhance the healing of injured skin. A mitochondrially-targeted antioxidant-MitoQ-was incorporated into the mixture of biopolymers prior to their self-association. These three-component membranes were evaluated in detail utilising surface roughness measurements, contact angle measurements, hemocompatibility, and thrombogenicity analyses.

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Vitamin D plays an important role in maintaining calcium and bone metabolism, a risk factor of osteoporosis, fall and fracture in old age. Reduction in D-vitamin levels associated with compensatory increased level of parathyroid hormone causes significant loss of bone matrix, so substitutions of vitamin D and calcium are very important. Many authors publish their recommended doses used for prevention of hip fracture during the last years.

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Parental investment theory postulates that adults can accurately perceive cues from their surroundings, anticipate the needs of future offspring based on those cues, and selectively allocate nongenetic resources to their progeny. Such context-dependent parental contributions can result in phenotypically variable offspring. Consistent with these predictions, we show that bacterially exposed mothers oviposited significantly more variable embryos (as measured by mass, volume, hatching time, and hatching success) relative to naïve and control mothers.

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Background: In a cytology-based screening program intended to prevent anal cancer, the anal transformation zone (TZ) should be adequately sampled because it is the site most susceptible to the development of the cancer precursor, high-grade squamous intraepithelial lesion (HSIL). An adequate TZ component is defined as comprising at least 10 rectal columnar or squamous metaplastic cells. In the current study, the authors examined whether the presence of a TZ component in anal cytology correlated with the detection of histological HSIL.

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Background: The objective of patient-specific instrumentation (PSI Zimmer®) technology is to optimize positioning and selection of components as well as surgical procedure in uni- and bicompartimental knee replacement. The article contains a description of the planning and surgical technique and evaluates the method based on own results and literature.

Methods: Using MRI or CT scans a virtual 3D model of the joint is created in order to simulate and plan the implant positioning.

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Background: Paroxysmal finger haematoma (PFH) is an under-recognised vascular acrosyndrome with no epidemiological description to date. The aim of this work was to evaluate the prevalence, risk factors and clinical correlates of PFH in a population-based sample of subjects and to describe their semiological characteristics.

Patients And Methods: This cross-sectional study of random samples of the general population in three geographic areas of France involved 802 subjects, 548 women and 254 men, aged 18 to 84 years.

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Endometrial carcinoma (EC) is the most common malignancy of the female genital tract in developed countries. According to its histomorphologic characteristics EC is divided into endometroid and serous carcinoma; among less common subtypes there are clear cell, mucinous, neuroendocrine and undifferentiated carcinoma and carcinosarcoma. Endometroid and serous EC were essential for the so-called dual classification of EC (type I and type II), which considered mainly epidemiological, clinical and endocrine characteristics.

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In a natural history study of anal human papillomavirus (HPV) infection and HPV-related lesions, we examined the reproducibility of histological high-grade squamous intraepithelial lesion (HSIL). Three expert anogenital pathologists share the reporting of histological specimens from the Study of the Prevention of Anal Cancer (SPANC), utilising Lower Anogenital Squamous Terminology (LAST) criteria. In total, 194 previously reported biopsies were randomly chosen within diagnostic strata [50 HSIL-anal intraepithelial neoplasia (AIN) 3; 45 HSIL-AIN 2; 49 'flat' low-grade squamous intraepithelial lesion (LSIL); 50 'exophytic' LSIL; and 50 negative for squamous intraepithelial lesion] and reviewed by each of these three pathologists.

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Intravascular papillary endothelial hyperplasia (IPEH) is a benign lesion of a vascular origin that is caused by excessive proliferation of endothelial cells in blood vessels or vascular malformations. It is a rare entity that can present in any region of the body, but with particular predilection to the head and neck region and the extremities. We also present the results of the English literature search, which to our knowledge are all the published cases of IPEH in the head and neck region (No=213).

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Introduction: Vitamin D deficiency is an important risk factor for fractures. However, there are few data available only on the relationship between serum 25-hydroxyvitamin D levels and recovery after surgery for hip fracture.

Aim: The authors investigate the vitamin D supply of patients with hip fractures.

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The diverse effects of vitamin D in human body became known during the last years. Vitamin D deficiency causes many problems in medical care. Important roles of vitamin D are the regulation of calcium metabolism and the effect on bone metabolism.

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Objective: Tissue iron plays an important role in the development of certain diseases. Although it is one of biogenic elements, its excess induces the reactive oxygen species (ROS) formation. The aim of the present work is to examine the protection against free or loosely bound iron from the view of morphology and chemical composition of iron-rich complexes in human spleen tissues with hereditary spherocytosis (HS) by scanning and transmission electron microscope with energy-dispersive microanalysis (EDX).

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Background: Although the iron is an essential element for the physiological functions of cells, tissues and organs, it is also an important inductor of reactive oxygen species (ROS).

Material And Methods: Three groups of human spleen with autoimmune thrombocytopenia (AITP), hereditary spherocytosis (HS) and reference samples stained by haematoxylin and eosin, Perls' reaction for nonheme Fe(III) iron and Alcian blue for glycoconjugates detection were studied.

Results: Positive Perls' reaction in both AITP and HS groups was seen.

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Backgrounds: Angiomyofibroblastoma (AMFB) is a rare histopathologic finding of the female lower genital tract. This tumor belongs to the group of mesenchymal tumors. Mesenchymal neoplasms of the modified genital skin and mucosa are uncommon.

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