The Drosophila pupal abdomen is an established model system for the study of epithelial morphogenesis and the development of sexually dimorphic morphologies. During pupation, which spans approximately 96 hours (at 25 °C), proliferating populations of imaginal cells replace the larval epidermis to generate the adult abdominal segments. These imaginal cells, born during embryogenesis, exist as la...

background: vascular endothelial growth factor (vegf) is a signal protein produced by cells that stimulates angiogenesis and increased vascular permeability. the prognostic value of vegf expression in colorectal cancer is unclear as shown by the discordant results still reported in the literature. this study was designed for the evaluation of vegf expression and correlation with clinicopatholog...

background: the aim of this study was to investigate the percentage of the stem cells population in human endometrial tissue sections and cultured cells at fourth passage. methods: human endometrial specimens were divided into two parts, one part for morphological studies and the other part for in vitro culture. full thickness of human normal endometrial sections and cultured endometrial cells ...

tendon never restores the complete biological and mechanical properties after healing. bone marrow and recently adipose tissue have been used as the sources of mesenchymal stem cells, which have been proven to enhance tendon healing. stromal vascular fraction (svf), derived from adipose tissue by an enzymatic digestion, represents an alternative source of multipotent cells, which undergo differ...

kaposiform hemangioendothelioma (khe) appears as a single lesion at birth or early infancy in an equal sex ratio. a rare aggressive vascular proliferation has been recognized as a separate entity from other childhood vascular neoplasm. a 3-year-old iranian boy with a rapidly enlarging mass in his (posterior aspect of skull at the midline) skull was present here. physical examination revealed a ...

seed proteins of eight species of the genus suaeda (chenopodiaceae) were compared by means of polyacrylamide disc gel electrophoresis. different samples of the same species showed not less than 89% similarities, and geographical separation had no remarkable effect on seed protein patterns of the same species. morphological heterogenity, that creates difficulties in infrageneric classification, ...

neurofibromas commonly involve peripheral nervous system. isolated neurofibroma of vagina is very rare tumor and usually associated with von recklinghausen’s disease. vulva is the most frequent location of neurofibroma of genital tract followed by clitoris and labia. we present a rare case of neurofibroma of vaginal wall presented as vaginal cyst in a 52 year old female with no history of any o...

Uterine cervical cancer is caused, mostly, by persistent infection with some types of Human Papilloma Virus (HPV), with types 16 and 18 showing higher risk for developing the disease. Because there is no effective drug treatment, early diagnosis of cervical cancer is very important for prognosis. The objective of this paper is to review the current immunohistochemical markers used in diagnosis,...

The Drosophila neuromuscular junction (NMJ) is an established model system used for the study of synaptic development and plasticity. The widespread use of the Drosophila motor system is due to its high accessibility. It can be analyzed with single-cell resolution. There are 30 muscles per hemisegment whose arrangement within the peripheral body wall are known. A total of 31 motor neurons attac...

Prognosticators evaluating survival in breast cancer vary in significance in respect to lymph node status. Studies have shown e.g. that HER2/neu immunohistochemistry or HER2/neu gene amplification analysis do perform well as prognosticators in lymph node positive (LN +) patients but are less valuable in lymph node negative (LN -) patients. We collected data from different studies and tried to e...