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91.
Vahid Bayati Mohammad Reza Abbaspour Fereshteh Negad Dehbashi Niloofar Neisi Mahmoud Hashemitabar 《Anatomical science international / Japanese Association of Anatomists》2017,92(4):509-520
Polycaprolactone (PCL) is used as a material of choice for surgical sutures, wound dressings, contraceptives, fixation devices and dentistry in paramedical sciences. In addition, adipose-derived stem cells (ASCs) have been shown to be effective in the treatment of acute and chronic wounds. This study aimed to evaluate the effect of electrospun PCL fibers on keratinocyte differentiation of ASCs and wound healing. PCL solution was electrospun and characterized. Isolated and characterized ASCs were differentiated into keratinocyte-like cells on a tissue culture plate (TCP) and PCL matrices and compared. PCL nano-/microfibers cultured with ASCs (test group) or alone (control) were implanted as a dermal substitute for wound healing. There were significant increases in the proliferation rate and expression level of cytokeratin 14, filaggrin and involucrin in cells cultured on PCL matrices compared to TCP (p < 0.05). After histological and immunological evaluation of the reconstituted skin, a thick epidermal layer with several skin appendages was evidently observed in the ASC/PCL group, whereas no real and mature epidermis was formed, especially in the central area of the healing wound in the pure PCL group on day 14. Pure PCL, if possessing suitable properties including good adhesiveness, high proliferative capability, inductive elasticity and stiffness for migration and differentiation, could drive the keratinocyte differentiation of ASCs and act as an efficient dermal equivalent to promote wound healing. 相似文献
92.
Vahid Sharifi Ali Abbasi Anahita Nosrati 《Yao wu shi pin fen xi = Journal of food and drug analysis.》2016,24(2):264
The recent developments in hollow fiber liquid phase microextraction and dispersive liquid –liquid microextraction are reviewed. Applications of these newly emerging developments in extraction and preconcentration of a vast category of compounds including heavy metals, pesticides, pharmaceuticals and abused drugs in complex matrices (environmental and biological matrices) are reviewed and discussed. The new developments in these techniques including the use of solvents lighter than water, ionic liquids and supramolecular solvents are also considered. Applications of these new solvents reduce the use of toxic solvents and eliminate the centrifugation step, which reduces the extraction time. 相似文献
93.
Case report: Cavitation of mesenteric lymph nodes as the presenting feature of coeliac disease
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Charlotte E Forrest Vahid Masters Caroline L Smith Gelareh Farshid 《Journal of Medical Imaging and Radiation Oncology》2015,59(4):471-473
Cystic cavitation of the lymph nodes associated with hyposplenism is a rare and under‐recognised complication of coeliac disease. This report encompasses the clinical, radiological and pathological features of this condition, while demonstrating the pivotal role radiological imaging plays in achieving a clinical diagnosis. 相似文献
94.
Amin Norouzi Gerald Chi Shahrooz Shafaee Fard Mehdi Sezavar Farzin Sarkarat Vahid Rakhshan Farima Kahe 《Journal of cranio-maxillo-facial surgery》2018,46(9):1480-1483
Purpose
Exposure of sclera below the iris in natural head positions is aesthetically undesirable. Studies on post-surgical changes in inferior scleral exposure following orthognathic surgery are scarce and mostly retrospective. The aim of this clinical trial is to examine the effect of Le Fort I osteotomy, a procedure for correction of malocclusion and maxillo-mandibular deformities, on the inferior scleral exposure and overall scleral surface area in skeletal class III patients.Materials and methods
This trial was performed on 40 eyes of 20 skeletal class III patients undergoing Le Fort I osteotomy without impaction (n = 20 eyes) and with impaction (n = 20 eyes). Standard true-size frontal photography was performed pre-operatively and post-operatively at 6 months. After measuring the overall eye height and the height of visible inferior sclera, the ratio of inferior sclera to overall eye height (S:E) was calculated three times. Also, overall surface area of the sclera was measured three times. The average of three attempts was considered the main measurement. Changes in the sclera after the surgery and between both methods were compared.Results
The average age of patients (9 men, 11 women) was 24.5 years. Age and gender were balanced between the two groups (P > 0.05). S:E ratios decreased in both groups after surgery (P < 0.05, Wilcoxon test). The decrease was greater in the impaction group (P < 0.05, Mann–Whitney test). Similar results were observed for overall sclera surface areas.Conclusion
Maxillary advancement, with or without impaction, reduced the inferior scleral exposure and overall scleral surface area. The effect was more pronounced in the impaction group. 相似文献95.
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98.
Chaharlang BH Bakhtiari AR Yavari V 《Bulletin of environmental contamination and toxicology》2012,88(6):956-961
The levels of Cd, Cu, Pb and Zn in surface sediment, soft tissue and shell of the oyster Saccostrea cucullata collected from three locations, in the intertidal zones of Lengeh Port, northern part of Persian Gulf were measured. Results
indicated that there were a positive correlation across Zn (r = 0.58, p = 0.025), Cd (r = 0.74, p < 0.01) and Cu (r = 0.80, p < 0.01) levels in the soft tissue of oyster and sediment which supported this fact that the soft tissue of S. cucullata can be considered as biomonitoring agent for Cd, Zn and Cu in the Lengeh Port. 相似文献
99.
Basiri K Etemadifar M Derakhshan F Ashtari F Shaygannejad V Fatehi Z Maghzi AH Fatehi F 《Acta medica Iranica》2012,50(2):97-100
None of the approved immunomodulatory drugs in adults Multiple Sclerosis (MS) patients have been officially approved for the pediatric patients and are currently used off-label in this population. In this study, we evaluated the effectiveness and tolerability of intramuscular interferon beta1-a (Avonex(?)) and subcutaneously injected interferon beta1-b (Betaferon(?)) in children with definite relapsing-remitting MS (RRMS). Thirteen patients aged younger than 16, who were recently diagnosed with definite RRMS according to the McDonald's criteria, were enrolled in this study. Six patients were treated with Avonex(?) 30 μg, intramuscularly every week, and seven patients were treated with Betaferon(?) 250 μg, subcutaneously every other day. All patients were treated with adult doses; initially interferon-beta was prescribed with half dose, and it was increased to full adult dose steadily. Eleven girls and two boys, mean (SD) age of 14.7 (1.9) years, were studied. Following nine months of using interferon-beta, nine patients (69.2%) had no relapses and the remaining four, experienced only one relapse. The mean EDSS score was decreased significantly after the study period. The present study provides reasonable data for the use of interferon-beta in Pediatric MS due to lack of short-term complications and safety. Studies with larger sample size and longer follow up duration are required to shed light on the long term impact of the interferon-beta therapy in children. 相似文献
100.