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1.
William K. Boyes Brittany Lila M. Thornton Souhail R. Al-Abed Christian P. Andersen Dermont C. Bouchard Robert M. Burgess 《Critical reviews in toxicology》2017,47(9):771-814
Engineered nanomaterials (ENM) are a growing aspect of the global economy, and their safe and sustainable development, use, and eventual disposal requires the capability to forecast and avoid potential problems. This review provides a framework to evaluate the health and safety implications of ENM releases into the environment, including purposeful releases such as for antimicrobial sprays or nano-enabled pesticides, and inadvertent releases as a consequence of other intended applications. Considerations encompass product life cycles, environmental media, exposed populations, and possible adverse outcomes. This framework is presented as a series of compartmental flow diagrams that serve as a basis to help derive future quantitative predictive models, guide research, and support development of tools for making risk-based decisions. After use, ENM are not expected to remain in their original form due to reactivity and/or propensity for hetero-agglomeration in environmental media. Therefore, emphasis is placed on characterizing ENM as they occur in environmental or biological matrices. In addition, predicting the activity of ENM in the environment is difficult due to the multiple dynamic interactions between the physical/chemical aspects of ENM and similarly complex environmental conditions. Others have proposed the use of simple predictive functional assays as an intermediate step to address the challenge of using physical/chemical properties to predict environmental fate and behavior of ENM. The nodes and interactions of the framework presented here reflect phase transitions that could be targets for development of such assays to estimate kinetic reaction rates and simplify model predictions. Application, refinement, and demonstration of this framework, along with an associated knowledgebase that includes targeted functional assay data, will allow better de novo predictions of potential exposures and adverse outcomes. 相似文献
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Souhail H Albouzidi A Laktaoui A Kriet M Channa H Benomar S Terhzaz A Alioia Z 《Journal fran?ais d'ophtalmologie》2003,26(10):1071-1074
Kaposi's sarcoma is a proliferative disease, probably induced by human herpes virus type 8 (HHV8). Its expression is cutaneous and visceral, with four clinical forms. An orbital location of Kaposi's sarcoma remains exceptional. In order to evaluate the epidemiological, clinical, and therapeutic objectives of this tumor location, we report a case of a 58-year-old patient hospitalized in the ophthalmology department for a surgically treated right orbital tumor. 相似文献
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Souhail Chatti Imane Kacem Maher Maoua Houda Kalboussi Mohamed Ayem El Asmi Aicha Brahem Sana El Guedri Olfa El Maalel Faten Debbabi Nejib Mrizak 《Annales médico-psychologiques》2019,177(4):364-369
Purpose
To describe the relationship between psychosocial factors and mental health among housekeepers.Methods
A cross-sectional study was conducted nearby all the housekeepers of Farhat-Hached teaching hospital of Sousse (Tunisia). After their oral consent, employees completed a self-administrated questionnaire including socio-demographic and lifestyle data, the Job Content Questionnaire (JCQ) evaluating psychological stress at work and the Hopkins Symptoms Checklist (HSCL-25) studying mental health.Results
Overall, 136 cleaners were enrolled in the study, corresponding to a response rate of 89.5%. The mean age was 41.9 ± 7.7 years. According to the demand control model, 26.5% of the participants were in the situation of job-strain. The study of HSCL-25 scales revealed a positive mental health disorders in 50% of cases. The study of the psychosocial factors revealed a correlation between job-strain and urban origin (P = 0.007), high psychological demand and seniority in the cleaning sector (P = 0.030) and low decision latitude and the night work (P = 0.015). The mental health association were associated with unmarried status (P = 0.006), high psychological demand (P < 0.001), active employees (P = 0.037), and iso-strain (P = 0.013). Mental disorders were associated with a high psychological demand in the presence of a high decision latitude (OR = 9.2 [2.8–30.8]) and a job-strain in the presence of low social support (OR = 3.5 [1.2–10.4]).Conclusion
Psychosocial factors can deteriorate seriously the mental health of workers. Their identification is the most important step in any efficient preventive strategy. 相似文献5.
Souhail Kraiem Maneera Y. Al-Jaber Hana Al-Mohammed Afnan S. Al-Menhali Noora Al-Thani Murad Helaleh Waseem Samsam Soufiane Touil Alka Beotra Costas Georgakopoulas Sondes Bouabdallah Vidya Mohamed-Ali Mohammed Al Maadheed 《Drug testing and analysis》2021,13(7):1341-1353
Ecdysteroids are of interest as potential sport performance enhancers, due to their anabolic effects. The current study aimed to analyze levels of the most abundant ecdysteroid, ecdysterone (20-hydroxyecdysone, 20-OHE) in easily available dietary supplements, and, outline an analytical strategy for its detection, and that, of its metabolites, (1) following administration of pure 20-OHE to uPA(+/+)-SCID mice with humanized liver, (2) in a human volunteer after ingestion of two supplements, one with a relatively low, and the other a high, concentration of 20-OHE, and, (3) to estimate the prevalence of use of 20-OHE in elite athletes (n = 1000). Of the 16 supplements tested, only five showed detectable levels of 20-OHE, with concentrations ranging from undetectable up to 2.3 mg per capsule. Urine of uPA(+/+)-SCID urine showed the presence of 20-OHE and its metabolite, 14 deoxy ecdysterone, within 24 hours (hr) of ingestion. In humans, both the parent and the metabolite were detectable within 2 to 5 hr of ingestion, with the metabolite being detectable for longer than the parent. After ingestion of a low dose supplement, the parent and metabolite were detectable for 70 and 48 hr, while following the higher dose it was 96 and 48 hr, respectively. Analysis of urines from athletes (n = 1000) confirmed four positives for 20-OHE, suggesting a prevalence of use of 0.4%. Prevalence of its use by elite athletes was relatively low, however, this needs to be confirmed in other populations, and with other related ecdysteroids. 相似文献
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Kais Mnafgui Emna Khdhiri Raouf Hajji Anouar Feriani Francisco Ivan da Silva Antnia Laíres da Silva Santos Abir Tlili Souhail Mlayeh Moncef Bouzidi Houcine Ammar Souhir Abid 《Clinical and experimental pharmacology & physiology》2021,48(1):107-120
This study aimed to explore the cardioprotective effect of new synthesized coumarin (E)‐4‐hydroxy‐N’‐(1‐(7‐hydroxy‐2‐oxo‐2H‐chromen‐3‐yl) ethylidene) benzohydrazide denoted (Hyd.Cou) against myocardial infarction disorders. Male Wistar rats were divided into four groups; Control, isoproterenol (ISO), ISO + Acenocoumarol (Ac) and ISO + Hyd.Cou. Results showed that the ISO group exhibited serious alteration in EGC pattern, significant heart hypertrophy (+33%), haemodynamic disturbance and increase in plasma rate of CK‐MB, LDH and troponin‐T by 44, 53, and 170%, respectively, as compared to Control. Moreover, isoproterenol induced a rise in plasma angiotensin‐converting enzyme activity (ACE) by 49%, dyslipidaemia, and increased thiobarbituric acid‐reactive substances (TBARS) by 117% associated with decrease in the activity of superoxide dismutase (SOD) and glutathione peroxidase (GPx) by 46% and 58%, respectively in myocardium. Interestingly, the molecular docking calculation demonstrated strong interactions of Hyd.Cou with the receptors of the protein disulphide isomerase (PDI) which could highlight the antithrombotic effect. Moreover, Hyd.Cou improved plasma cardiac dysfunction biomarkers, mitigated the ventricle remodelling process and alleviated heart oxidative stress damage. Overall, Hyd.Cou prevented the heart from the remodelling process through inhibition of ACE activity and oxidative stress improvement. 相似文献
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Efficacy of intralesional immunotherapy for the treatment of warts: A review of the literature
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Adam Souhail Aldahan Stephanie Mlacker Vidhi V. Shah Preetha Kamath Mohammed Alsaidan Sahal Samarkandy Keyvan Nouri 《Dermatologic therapy》2016,29(3):197-207
Warts are common epidermal growths caused by human papillomavirus that often cause significant discomfort and embarrassment. Current treatment options include topical therapies, cryotherapy, laser vaporization, and surgical excision. Many of these options are destructive and may result in scarring, while less aggressive approaches can lead to lesion recurrence. Additionally, these local modalities are not practical for patients with a large number of warts. Systemic approaches such as immunotherapy have demonstrated success in treating multiple lesions by combining a targeted approach with upregulation of the host immune system. An extensive literature review was performed to evaluate the various vaccine antigens that have been used intralesionally to treat cutaneous and anogenital warts. The specific intralesional immunotherapies that have been studied include: Candida albicans; measles, mumps, and rubella; Trichophyton; and tuberculin antigens such as purified protein derivative, Mycobacterium w vaccine, and Bacillus Calmette‐Guerin. Intralesional vaccine injection represents a safe, effective, and tolerable treatment for warts, including recalcitrant and anogenital warts. This approach has been somewhat overlooked in the past despite substantial evidence of high response rates with a low side effect profile. Large comparative trials are necessary to determine the most effective immunotherapy treatment option as well as the most appropriate dosing parameters. 相似文献
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Yousri El Kissi Asma Ben Romdhane Samir Hidar Souhail Bannour Khadija Ayoubi Idrissi Hedi Khairi Bechir Ben Hadj Ali 《European journal of obstetrics, gynecology, and reproductive biology》2013
Objective
To compare measures of psychological distress between men and women undergoing ART in the Unit of Reproductive Medicine “UMR” in the Department of Obstetrics and Gynecology at “Farhat Hached” Hospital in Sousse, Tunisia.Study design
We conducted a gender comparative study of psychological profile in infertile couples. Recruitment was done during period from January to May 2009. 100 infertile couples with primary infertility were recruited. Scores of general psychopathology, depression, anxiety and self-esteem were evaluated. We administrated questionnaires on psychological factors among infertile couples before starting a new infertility treatment cycle. Psychological factors included the symptom check-list (SCL-90-R), the hospital anxiety and depression scale (HAD-S) and the Rosenberg self-esteem scale (RSE).Result(s)
Infertile women had higher scores than their spouses in the three global scores of the SCL-90-R and in several items such as somatisation, obsessive symptoms, interpersonal sensitivity and phobias. Scores of HADS were higher among women for both depression and anxiety. Scores of self-esteem were lower among women.Conclusion(s)
Women endorsed higher psychological distress than men across multiple symptoms domains: general psychopathology, anxiety, depression and self esteem. 相似文献9.
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Dammak Ines Boudaya Sonia Ben Abdallah Fatma Besbes Souhail Attia Hamadi Turki Hamida Hentati Basma 《International journal of dermatology》2010,49(3):262-268
Background Oxidative stress has been implicated in various skin diseases through the generation of reactive oxygen species and the depletion of endogenous antioxidant systems. The administration of antioxidants is reportedly helpful, notably to enhance the healing process. To protect the skin against oxidative damages, we have studied the effect of new oil: “date seed oil” (DSO). This oil, may serve as a potential source of natural antioxidants such as phenols and tocopherols. Methods Here, we report the protective effect of DSO against hydrogen peroxide (H2O2)‐induced oxidative stress in terms of lipid peroxidation, depletion of endogenous antioxidant defense enzymes such as superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) using normal human epidermal keratinocytes (NHEK). Results In the investigated model system, DSO has significant chemoprotective effect, by inhibition of damage caused by H2O2 compared with cells without such addition endowing with a radical scavenging ability. Treatment of NHEK with DSO inhibited H2O2‐induced lipid peroxidation. In addition, this oil inhibited H2O2‐induced depletion of antioxidant defense components, such as SOD, CAT and GPx. Conclusions Our findings demonstrate that DSO is an efficient extract that is able to prevent keratinocytes oxidative damage induced by H2O2 exposure and may thus be a potential promising candidate, as a chemopreventive agent, in the development of keratinocytes‐related pathologies. 相似文献