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Pregnancy- and childbirth-related fears are common psychological concerns and the primary reasons for requesting caesarean section (CS). We aimed to examine the content of maternal fear and the associated demographic factors in a sample of Iranian primigravidae. A randomly selected sample of primigravidae (n = 342) was recruited in four health care centres in Iran. Data were collected using a 30-item questionnaire. Principal components factor analysis was applied to identify the main factors of pregnancy- and childbirth-related fears. All primigravidae reported some degree of fear, 48.2 % presented severe fear, and 62.6 % requested a CS because of childbirth-related fear. Most of the employed primigravidae with higher education level, higher family income, and unplanned pregnancy requested CS. The items constructed to measure maternal fear were subjected to exploratory factor analysis. Six categories were identified, including 'process of labour and childbirth', 'life and well-being of the baby', 'competence and behaviour of maternity ward personnel', 'own capabilities and reactions', 'becoming a parent and family life after delivery' and 'general fear in pregnancy' that cumulatively explained 55.3 % of the variance. The most common factor was 'life and well-being of the baby'. Severe fear was found in 70.6 % of those who chose CS, while 10.9 % of those who chose vaginal delivery reported severe fear. The between-group differences for mean scores and levels of fear were statistically significant. Pregnancy- and childbirth-related fears were frequently experienced by all low-risk primigravidae. Better strategies to address women's psychological needs during pregnancy are necessary.

Centrally-acting drugs have been increasingly used for gastrointestinal diseases, such as opioids used for diarrhea and phenothiazine as antiemetic agents. Recent reports focused on the identification of the efficacy of these drugs in peptic ulcer protection; by tackling the oxidative stress associated with the inflammatory reaction of ulceration. The present study aimed to identify the differences between fluoxetine versus fluvoxamine in terms of antioxidant activity. To do so, an animal model of stress-induced ulcer was utilized by exposing rats to high doses of indomethacin and these rats were sub-classified into four groups (control, fluoxetine, fluvoxamine, and misoprostol) for comparison. Blood samples were collected from the studied groups and analyzed by measuring plasma levels of total antioxidant and malondialdehyde (MDA). The results confirmed that fluvoxamine possesses an antioxidant activity that is comparable to misoprostol and significantly higher than that of fluoxetine effects; the latter showed a non-significant effect in ordinary doses. In conclusion, these findings might provide a clue for future directions for the discovery of new antiulcer agents through structural modification of the newly introduced antidepressant agents in clinical use.

Background Various systems of nickel-titanium (NiTi) instrument have long been commercially available. However, the preparation of narrow and curved root canals has always been challenging. The purpose of this study was to compare the shaping ability of two NiTi systems (2Shape and NeoNiTi) in severely curved root canals with different morphological patterns using micro-computed tomography (Micro-CT). Methods A total of 22 human extracted permanent teeth of mandibular first molars, with the exact mesial angle of curvature of 25 and 35 degrees, according to Schneider’s technique, were distributed randomly into two groups (group I: 2Shape, group II: NeoNiTi) based on the rotary system used (n = 22). The groups were subdivided into two subgroups corresponding to the angle of canal curvature (25° and 35°) (n = 11). Canals were scanned using Micro-CT pre- and post-preparation to assess the volume of dentin removed; canal transportation; and canal centering ratio at 3, 6, and 9 mm from the apex. The Mann–Whitney U test was utilized to determine any significant differences between the two systems. The level of statistical significance was set at p < 0.05. Results There was no significant difference between the two groups in volume of dentin removed; canal transportation; and centering ability for 25° and 35° canal curvatures at 3, 6, and 9 mm from the apex (coronal, middle, and apical) thirds (p > 0.05). At the middle third, the NeoNiTi group demonstrated a statistically significant increase in volume of dentin removed for 35° canal curvatures compared to the 2Shape group. Conclusion Within the limitation of our in vitro study, 2Shape and NeoNiTi systems with severely curved canals were confirmed to be relatively safe in preparation and to respect original canal anatomy. Nevertheless, NeoNiTi instruments produced more centered preparation and minimal canal deviation compared to the 2Shape system.

Statins are a chemically related group used as lipid-lowering agents, studies confirmed that statins have additional pleiotropic, cholesterol independent, effects mediated by inhibition of isoprenoid synthesis with subsequent inhibition of the downstream signaling molecules like Rho, Rac, and Ras. However, different statin members might have a distinctive effect on the immune system; thereby having different peripheral and cardiovascular actions, such extra-hepatic effects impose the preferences of one statin over another. The present study aimed to identify the role of the short-term utilization of atorvastatin on leukocyte concentration as a representative in vivo marker for immunomodulation. Two widely used statin agents were included in the study- the lipophilic (atorvastatin) versus the hydrophilic (rosuvastatin) for comparison. Blood samples were withdrawn from the two statin groups, before and after therapy, and an automated differential white blood cell count was performed to determine the difference between the studied samples. The results showed that short-term use of atorvastatin, but not rosuvastatin, was associated with a selective reduction of lymphocyte count (p<0.0001). The study concluded that lymphocyte levels were reduced significantly after short-term use of atorvastatin; an effect which might need to be considered in certain immunological disease associated with cardiac ones.