Assessment of Directional-Hemispherical Reflectance of Tablets with Cefuroxime during Storage under Elevated Temperature and Ultraviolet Radiation.

Environmental conditions can lead to changes in the physical and chemical structures of drug products. In this study, the stability of cefuroxime tablets stored under adverse conditions was evaluated based on total directional-hemispherical reflectance (THR). The THR value was measured before and after the tablets' exposure to stress factors (temperature of 45 °C and UV radiation). Each measurement was performed three times within seven spectral bands at the beginning of the experiment (day 0), and then on days 1, 2, 3, 5, and 7. In addition, hyperspectral profiles (400-1030 nm) were analyzed on days 0 and 7. A significant decrease in THR values in all wavelength ranges was observed when day 7 vs. day 0 were compared, especially for spectral bands of 335-380 nm and 1700-2500 nm (Δ = 0.220, p < 0.001 and Δ = 0.171, p < 0.001, respectively). The hyperspectral analysis confirmed a decrease in the reflectance after the end of stress conditions in the visible light range (400-700 nm) compared to tablets before the experiment. This may indicate that more radiation entered the tablets. In conclusion, the THR of cefuroxime tablets decreases during the exposure to heat and UV radiation, which may result from some physicochemical changes that have occurred during storage.

Are There Differences in the Homogeneity of the Parts of Tablets Obtained after Subdivision?-A Preliminary Assessment Using an X-ray Microtomography.

Aim: The study aimed to analyze the weight and homogeneity of the parts of tablets containing carbamazepine and tablets with trazodone hydrochloride, obtained after subdivision with a kitchen knife. X-ray microtomography was used for homogeneity analysis. Methods: 30 tablets with carbamazepine and 30 tablets with trazodone hydrochloride were analyzed in terms of weight uniformity after subdivision. Then, seven tablets of each type were analyzed using an X-ray microtomography (Phoenix vǀtomeǀx, General Electric). The absorption of X-rays by an object is proportional to its density. In turn, measurement of the density of the analyzed object in a microtomographic image is the grayscale level. Based on the correlation between the grayscale value and the reference density, from the calibration phantom, we were able to determine the density of any area of the tablet's scan. Results: During the subdivision, the weight loss exceeded 3% for two carbamazepine tablets, while for trazodone tablets, none lost more than 3%, which is the limit recommended by Food and Drug Administration (FDA). As to the density of the tablets resulting from the microtomographic analysis, two of the whole tablets containing trazodone hydrochloride had a significantly higher density than the remainder (p < 0.001). Similarly, some differences in density were observed in the analysis of the density of tablets of carbamazepine (p = 0.008). Parts of one of the analyzed tablets with trazodone obtained after subdivision differed in terms of pixel brightness, thus density. On the other hand, the uniform density was observed for parts of the split tablets containing carbamazepine. Conclusions: Parts of the trazodone hydrochloride tablets obtained after subdivision differed in terms of homogeneity and weight. Microtomographic methods may be an interesting and useful method for evaluating the uniformity of compounds in solid dosage forms.

Assessment of Post-Stroke Consequences in Pediatric Ischemic Stroke in the Context of Neuroimaging Results-Experience from a Single Medical Center.

Arterial ischemic stroke (AIS) in children is a rare condition; its frequency is estimated at 0.58 to 7.9 new onsets in 100,000 children per year. The knowledge on risk factors, clinical outcomes and consequences of pediatric AIS is increasing. However, there are still many unknowns in the field. The aim of the study was to analyze the clinical presentation of pediatric AIS and its consequences according to the neuroimaging results and location of ischemia. The research was retrospective and observational. The analyzed group consisted of 75 AIS children (32 girls, 43 boys), whereby the age of the patients ranged from 9 months to 18 years at stroke onset. All the patients were diagnosed and treated in one tertiary center. The most frequent stroke subtype was total anterior circulation infarct (TACI) with most common ischemic focus location in temporal lobe and vascular pathology in middle cerebral artery (MCA). The location of ischemic focus in the brain correlated with post-stroke outcomes: intellectual delay and epilepsy, hemiparesis corresponded to the location of vascular pathology. A correlation found between ischemic lesion location and vascular pathology with post-stroke consequences in pediatric AIS may be important information and helpful in choosing proper early therapy. The expected results should lead to lesser severity of late post-stroke outcomes.

Self-assessment of Polish pharmacy staff's readiness to promote health.

Background Nowadays, pharmacists are expected to focus not only on dispensing medicines but also on the wellness of the patient. In some developed countries a pharmacist is clearly defined as a health care professional that can make a contribution to improving the general health of the population. Objective To assess the readiness of Polish pharmacy staff to engage in health promotion and educational activities. Setting Community pharmacies in Poland. Method The study group consisted of 308 pharmacy staff (248 pharmacists and 60 pharmacy technicians) employed in Polish pharmacies. The survey questionnaire referred to three domains: systemic solutions for health promotion, readiness of pharmacy staff as a professional group to promote health, personal readiness to promote health. Responses about pharmacy staff's readiness to promote health were scored using a 10-point scale. Scale reliability for all items (overall readiness), and for items within the three domains separately, were tested using Cronbach's α and average inter-correlation coefficient among the items. Main outcome measure Pharmacy staff's readiness to promote health (the questionnaire containing 32 items). Results The overall readiness of pharmacy staff to promote health was rather low (average of 4.6 ± 1.5 in 1-10 scale). The highest scores were obtained for pharmacy staff's personal readiness to promote health (average of 5.5 ± 1.8) which was neutral on the scale. The lowest scores were obtained for systemic solutions for health promotion (average of 3.6 ± 1.4). Readiness of pharmacy staff as a professional group was ranked in the middle (average 4.8 ± 1.8). Surveyed pharmacy staff rated their readiness to promote health in the work environment significantly higher than promoting health in the local community. Female and younger pharmacy staff as well as those with job seniority of less than 5 years, or pharmacy technicians assessed their readiness to promote health significantly higher than others. Readiness to promote health was higher among pharmacy staff working in pharmacies employing up to 3 staff members and at pharmacies with over 200 customers daily. Conclusions The overall readiness of pharmacy staff to promote health was low, especially in the domain of systemic solutions in health promotion.