background: replacement of the lost tissue is the major concerns of the plastic surgeons. expanded area should be coherent with the surrounding tissue. tissue expansion technique is the reforming methods the skin tissue scarcities. several methods for tissue expansion are available; including usage of silicon balloon and injecting fluid into the tissue expander. materials and methods: in a clin...

rhinophyma is a severe late complication of rosacea, which is characterized by progressive hyperplasia of sebaceous glands and connective tissue involving the lower two-thirds of the nose. it can be an emotionally devastating disorder, and serve as a medium for occult cancers and other health problems. many surgical treatments have been advocated, as well as dermabrasion and laser therapy. in l...

brain hydatid cyst constitutes one of the leading causes of cranial mass in the endemic region, especially among the children. symptoms of the disease are associated with rising of intracranial pressure and focal neurological deficit. surgical excision of the cyst is essential to treatment. here we present a 19 yr-old male livings in ardabil, northwest of iran, referred to neurosurgery clinic i...

silymarin, an extract from silybum marianum, has been shown to have antioxidant properties. however, there is no scientific report on wound healing activity of the silymarin. the purpose of this study was to evaluate the effect of topical administration of silymarin on excision wound healing in rats. excision wounds were made on the back of rats. rats were divided into three groups, as control,...

objective: to compare the outcome of patients with up to 60% total body surface area (tbsa) thermal burns undergoing ultra-early and early excision and grafting. methods: this historical cohort study was performed in two referral burn centers of shiraz during a 1-year period from 2015 to 2016. we included those patients with thermal burns up to 60% tbsa who underwent ultra-early (48-72 hours) a...

Gene targeting allows precise tailoring of the mouse genome such that desired modifications can be introduced under precise temporal and spatial control. This can be achieved through the use of site-specific recombinases, which mediate deletion or inversion of genomic DNA flanked by recombinase-specific recognition sites, coupled with gene targeting to introduce the recombinase recognition site...

background the transjugular intrahepatic portosystemic stent-shunt (tipss) builds a shortcut between the portal vein and a liver vein, and represents a sophisticated alternative to open surgery in the management of portal hypertension or its complications. objectives to describe clinical experiences with a low-profile nitinol stent system in tipss creation, and to assess primary and long-term s...

willingness to communicate and motivation can be two important affective variables to cause success in language achievement. the current study aimed to investigate the role of willingness to communicate (wtc) and second language motivational self-system (l2mss) in relation to learners’ language achieve- ment. to this end, 100 homogeneous learners both male and female aged from 16 to 20 were cho...

background: the aim of this study was to evaluate the reduction in excision cavity volume (ecv) during the whole breast radiotherapy (wbrt). the delineating of reduced cavity volume on secondary ct (computed tomography) might decrease the field size of boost plan. materials and methods: twenty patients were treated having breast conservative surgery. at first, primary ct simulation (ct-1) was d...

A procedure is described that directs the self-induced deletion of DNA sequences as they pass through the male germ line of mice. The testes-specific promoter from the angiotensin-converting enzyme gene was used to drive expression of the Cre-recombinase gene. Cre was linked to the selectable marker Neor, and the two genes flanked with loxP elements. This cassette was targeted to the Hoxa3 gene...