Background: Medicinal herbs such as Pistacia atlantica (P. atlantica) subsp. Kurdica have antimicrobial effects. The present study is aimed to investigate the nanocluster structure of P. atlantica subsp. Kurdica turpentine and its composing elements and antibacterial effect. Methods: 100 μl ethanol was used to dissolve oily turpentine. 2, 2.2, 2.4, and 2.6 µg/μl of turpentine were used for investigating the antibacterial effects using disk and well diffusion methods. Elemental and nanocluster structure analyses were performed by Energy-Dispersive XRay Microanalysis (EDXMA) and Field Emission (FE)-scanning electron. Two-way analysis of variance (ANOVA) and Bonferoni test were used for data analysis (p ≤ 0.001). Results and Discussion: EDXMA elemental analysis of turpentine included: zinc (Zn), magnesium (Mg), fluorine (F), oxygen (O), silicium (Si), carbon (C), and argentum (Ag). A topography image of the turpentine showed a nanocluster surface with bright clusters in the background. The largest diameters of the growth inhibition zones (24.67 ± 0.58 mm in the disk diffusion and 23.67 ± 1.53 mm in the well diffusion) that were created by turpentine were observed against S. aureus ATCC 25923 at the concentration of 2.6 µg/μl. Diameter of the inhibition zone around bacterial growth had a direct relationship with turpentine concentration (p ≤ 0.001). Conclusion: The nanocluster structure of turpentine and its composed elements were detected in this research. Moreover, antibacterial effects of turpentine were proved. Herbal substances are widely used in medical applications. Different elements of P. atlantica subsp. Kurdica turpentine can be used as antibacterial agents, but more in-vitro and in-vivo studies should be performed in this field.
Background and Aim: Chronic Urticaria is an allergic disorder that affects about 0.5 to 5% of the population in different communities. The disease's chronic course and long-term onset impose high economic and psychological costs on communities, adversely affecting individual and social life. Platelets play a role in various pathophysiological processes, including inflammation and immunology. Growing evidence suggests that platelets are actively involved in the pathogenesis of various inflammatory disorders, including inflammatory skin diseases. This study investigated the relationship between platelet and Immunoglobulin-E markers and chronic idiopathic urticaria. Materials and Methods: In the present case-control study, for the study population, patients with chronic idiopathic urticaria were referred to the Asthma and Allergy Clinic, and their caregivers were selected as the case and control groups, respectively. In this study, the mean platelet count (PLT), mean platelet volume (MPV), platelet distribution width (PDW), and Total IgE values were simultaneously measured in the case and control groups. After taking 5CCs of venous blood, a blood sample was sent to the laboratory for platelet and IgE marker measurements. Results: 100 patients and 100 healthy persons were studied in this study. The mean age in the case group was 34.95, and in the control group was 35.78 years. The results showed that the mean values of PLT, MPV, PDW, and Total IgE in the case group were 12.86, 9.83, 252190, and 147.05, respectively. The mean values of PLT, MPV, PDW, and Total IgE in the control group were 16.93, 7.53, 231410, and 15.29, respectively, which was statistically significant (P = 0.001). Moreover, Total IgE in the Autologous Serum Skin Test (ASST) positive group was higher than ASST negative group and was statistically significant (P = 0.001). Conclusion: The study results indicate the possible role of platelets in urticaria and inflammation. MPV in patients with chronic urticaria was higher than in the control group. The present study showed no significant relationship between the severity of urticaria and platelet markers, but there was a significant relationship between the severity of urticaria and ASST. Moreover, the severity of urticaria was higher in the positive skin test group.
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