Showing 4 results for Daya
Soheila Mohammadi, Mohammad Hossein Baghiani Moghadam, Mohammad Taghi Noorbala, Seyed Saeed Mazloomi, Hossein Fallahzadeh, Ali Daya,
Volume 1, Issue 2 (6-2010)
Abstract
Backgound and Aim: Skin cancer is the most prevalent type of cancer in Yazd city. Childhood and adolescense is an important time for preventing the skin cancers. The aim of this study was to survey the role of appearance concern with skin cancer prevention behavior based on protection motivation theory.
Methods: Participants in this cross- sectional study were 360 female students from 4 high schools in Yazd city. Data were gathered by using self-reporting questionnaires and were analyzed using SPSS software applying ANOVA, Pearson's correlation coefficient and linear regression tests.
Results: Using Pearson's correlation test, a statistically significant correlation between the appearance concern with perceived susceptibility, perceived severity, self-efficacy, response efficacy, protection motivation and behaviors was found (P<0.01). The perceived susceptibility, perceived severity, self- efficacy, response efficacy, protection motivation, response costs and appearance concern could predict 0.56 of the behaviors and perceived susceptibility was the strongest predictor (β=0.120). Also, protection motivation could predict behavior (41 %).
Conclusion: Results of this study support the effectiveness of protection motivation theory variables and the role of appearance concern for prediction of skin cancer prevention behaviors in participants.
Kamand Hedayat, Saman Ahmad Nasrollahi, Hossein Rastegar, Fatemeh Zolfaghari, Alireza Firooz,
Volume 8, Issue 4 (Volume 8, Number 4 2018)
Abstract
Application of sunscreens is one of the most important ways for skin protection against sunburn, early skin aging and skin cancer.
Due to variety of sunscreen products, it is necessary to assure their protection ability against the sun’s damages. Performance assessment of sunscreens against UVB expressed by sun protection factor. Due to great cost of determination methods of this factor in foreign countries, developing a comprehensive protocol for in vivo SPF determination in Iran would have distinct benefits.
In this study four international standards have been reviewed and compared for Sun Protection Factor (SPF) determination including ISO24444, FDA2011, AS/NZS 2604:2012 and CEN 2006. The general process of in vivo SPF determination is similar in these protocols but there are some obvious differences in details that leading to advantages and disadvantages for each of them.
In this study a complete document were collected, then regarding to available facilities and with cooperation of Iran food and drug organization a comprehensive in vivo SPF determination protocol will be developed.
Kamand Hedayat, Saman Ahmad Nasrollahi, Hossein Rastegar, Fatemeh Zolfaghari, ,
Volume 9, Issue 1 (2018, Volume 9, Number 1 2018)
Abstract
Sunscreen products are among the most important ways for skin protection against sunburn, early skin aging and skin cancer. Due to existing wide variation of sunscreens, it is necessary to assure their protection ability against the sun damage. Performance assessment of sunscreen products against UVA is expressed by sun UVA protection factor (UVA-PF). Because currently these factors are determined in foreign countries at high cost, developing a comprehensive protocol for UVA-PF determination in Iran would have distinct benefits.
The two standards, CEN 2006 and FDA 2007, introduce persistent pigment darkening (PPD) method for UVA-PF in vivo determination, while following the same principles are different in details. For in vitro UVA-PF determination, 4 standards CEN 2006, FDA 2007, FDA 2011 and ISO 24443 provided protocols, which two of them (CEN 2006 and FDA 2011) proposed critical wavelength method. On the other side, FDA 2007 offered modified Diffey method. ISO 24443 approved that and considering in vitro UVA-PF determination correlated with PPD method.
In this review, complete documents were collected, and the available facilities and setups, with cooperation of Iran Center for Food and Drug Control Labs, a comprehensive UVA-PF determination protocol for Iranian sunscreen products was developed.
Farnaz Mohammadhedayati, Mohammadtaghi Ahady, Shagayegh Manouchehri,
Volume 10, Issue 2 (2019, Volume 10, Number 2 2019)
Abstract
Background and Aim: Demodex is a common mite and ectoparasite in humans and animals. The existence of Demodex folliculorum and Demodex brevis in human skin can have a role in some inflammatory skin diseases such as acne, rosacea, and dermatitis. This study aimed to identify the prevalence of Demodex ectoparasite in women and its possible association with skin lesions.
Methods: Fifty women with skin lesions (case group) and 50 women without skin lesions (control group) were selected and evaluated by clinical and
laboratory tests. The study was approved by the Ethics Committee and the volunteers provided written informed consent. The skin scrapings were investigated by placing in a 10% potassium hydroxide (KOH) and lactophenol solutions and were analyzed under microscope to detect the Demodex.
Results: Twenty-two out of 50 patients (with acne, rosacea, dermatitis, and eczema) had Demodex folliculorum infestation (44%). The highest levels of infestation were observed in women aged 20-30 years (22%) and the infestation of Demodex was only confirmed in 10 cases (20%) out of the 50 subjects in the control group.
Conclusion: The rate of Demodex in patients with skin lesions was much higher than healthy subjects. There was a significant association between Demodex and skin lesions (sig.=0.023, P<0.05). The authors suggest that Demodox treatment should be considered in the therapeutic strategy of some inflammatory skin diseases.
