The wide diversity of microbiota at the genera and species levels across sites and individuals is related to various causes and the observed differences between individuals. Efforts are underway to further understand and characterize the human-associated microbiota and its microbiome. Using 16S rDNA as a genetic marker for bacterial identification improved the detection and profiling of qualitative and quantitative changes within a bacterial population. In this light, this review provides a comprehensive overview of the basic concepts and clinical applications of the respiratory microbiome, alongside an in-depth explanation of the molecular targets and the potential relationship between the respiratory microbiome and respiratory disease pathogenesis. The paucity of robust evidence supporting the correlation between the respiratory microbiome and disease pathogenesis is currently the main challenge for not considering the microbiome as a novel druggable target for therapeutic intervention. Therefore, further studies are needed, especially prospective studies, to identify other drivers of microbiome diversity and to better understand the changes in the lung microbiome along with the potential association with disease and medications. Thus, finding a therapeutic target and unfolding its clinical significance would be crucial.

Background: Pharmaceutical care (PC) services have expanded in recent years, resulting in improved patient outcomes. However, such PC services are currently available for free in the majority of Arabic countries. During the coronavirus disease (COVID-19) pandemic, telemedicine is especially beneficial since it allows for continuity of care while allowing for social distancing and minimizing the risk of infection. Objective: To assess the community’s attitude, opinion, and willingness to pay for telemedicine and PC services during COVID-19 pandemic, as well as to create a website provision for telemedicine and PC services. Methods: This cross-sectional study was conducted, over five months (December 2020– April 2021), among the general population in Arabic countries, excluding pharmacists, physicians, and pharmacy students. Results: A total of 1717 participants were involved, most of them were from Jordan (52.2%) and Iraq (24.8%). Sixty two percent of participants seek pharmacists’ advice whenever they have any medication changes and 45.1% of the participants agreed with the idea of paying pharmacists to decrease medication errors. Interestingly, 89.5% of participants encouraged the idea of creating a website that provides a PC, and 35.5% of them would pay for it. The failure to document the medical information of the patients had most applicants’ agreement as a reason of medical errors (M=4.17/5, SD=0.787). More than three-quarters of participants agreed that creating a database containing the patients’ medical information will reduce medical errors. Conclusion: From a patients’ perspective, this study suggests a large patient need for expanding PC services in Arabic countries and introduces a direct estimate of the monetary value for the PC services to contribute to higher savings. The majority of participants supported the idea of creating a website provision of telemedicine and PC services, and a considerable proportion of them agreed to pay for it.

Tetracycline-inducible systems allow for either suppression or induction of transgene expression to facilitate studies of cell physiology. Doxycycline is a preferred inducer for these gene expression systems due to its membrane permeability; however, the heterocyclic structure of doxycycline exhibits fluorogenic properties that can potentially bias measurement of other fluorochromes. Thus the simultaneous use of tetracycline-inducible systems and fluorescent proteins as reporter genes or as intracellular biosensors may lead to potentially confounding results. Herein, using cells which co-express the ratiometric redox sensitive intracellular reporter, roGFP, and a tetracycline-inducible reporter plasmid encoding the reporter gene, mCherry, as a model system, we describe the overlapping intracellular fluorescent signals between doxycycline and commonly used intracellular fluorescent probes. In our cells, the addition of doxycycline to cells caused a dose- and time-dependent increase in cell fluorescence with 405 nm excitation which overlapped with that of the oxidized configuration of roGFP. Incubating cells in concentrations of doxycycline less than 1 μg/mL and removing doxycycline from the media 60 min before performing experiments eliminated fluorescence interference while still maintaining maximal reporter transgene activation.

Objective: To investigate the effectiveness of an online tutorial and its impact on improving knowledge and skills of pharmacy students in the clinical problem-solving process that is necessary to implement pharmaceutical care. Methods: This is a prospective interventional study conducted during the COVID-19 pandemic restrictions using four novel templates. The first two levels of Kirkpatrick’s Model (Reaction and Learning) were used. Results: 129 participants completed all of the online training parts. The findings indicated a significant improvement in the students’ knowledge and skills. The participants achieved higher score following the tutorial than the baseline, with a statistically significant difference (p < 0.001). There was a significant improvement in the number of detected treatment-related problems. The majority of students were satisfied with the overall training process and stated a high evaluation score out of 10 (mean = 7.93 ± 1.42, median = 8.00). Conclusion: The educational intervention achieved a substantial positive impact on decision-making skills of participating students and was considered effective in helping them attain basic skills such as teamwork, peer assessment, communication and critical evaluation. Healthcare providers must work together to ensure accurate medication use during care transitions. Pharmacists, as medication experts, play an important role in the implementation process. Pharmacy educators must prepare pharmacy student to use pharmaceutical care in their future practice.

The aims of this study were to estimate the prevalence of potentially inappropriate medications (PIMs) in a community-dwelling Jordanian population of geriatrics according to the 2019 American Geriatrics Society Beers Criteria, to identify the most used PIMs and factors independently associated with PIMs use. This was an observational, descriptive, cross-sectional study. The sample population included 386 participants. Data were collected by face-to-face interviews. A total of 2894 medications were evaluated. The prevalence of patients using at least one PIM was 49.2%. The most used PIMs were proton pump inhibitors (24.6%) and long-acting sulfonylurea (20.5%). Participants who had diabetes mellitus, peptic ulcer, or irritable bowel syndrome had significantly higher numbers of PIMs. The use of PIMs was high in Jordanian geriatric patients. The results of this study might help healthcare providers to detect high-risk patients and reconsider the necessity of using PIMs to decrease the risk of adverse drug events.

Supplemental Digital Content is Available in the Text.

Pulmonary artery endothelial cells (PAEC) in an intact vessel are continually exposed to serum, but unless injured, do not proliferate, constrained by confluence. In contrast, pulmonary artery smooth muscle cells (PASMC) attain, and maintain, confluence in the presence of minimal serum, protected from serum’s stimulatory effects except when the endothelial barrier becomes more permeable. We hypothesized therefore, that confluent PASMC may be less constrained by contact inhibition in the presence of serum than PAEC and tested this idea by exposing confluent non-transformed human PAEC and PASMC to media containing increasing concentrations of fetal bovine serum (FBS) and determining cell growth over 7 days. PAEC that had attained confluence in low serum did not proliferate even when exposed to 5% serum, the highest concentration tested. In contrast, PASMC that attained confluence in low serum did proliferate once serum levels were increased, an effect that was dose dependent. Consistent with this observation, PASMC had more BrdU incorporation and a greater percentage of cells in S phase in 5% compared to 0.2% FBS, whereas no such difference was seen in PAEC. These results suggest that confluent human PAEC are resistant to the stimulatory effects of serum, whereas confluent PASMC can proliferate when serum levels are increased, an effect mediated in part by differences in phosphoinositide 3-kinase activation. This observation may be relevant to understanding the PASMC hyperplasia observed in humans and animals with pulmonary hypertension in which changes in endothelial permeability due to hypoxia or injury expose the underlying smooth muscle to serum.

An increase in glucose uptake by endothelial cells exposed to hyperglycemia is the presumed initiating event that causes systemic vascular disease in individuals with diabetes. Diabetics do not develop clinically significant pulmonary vascular disease, however, despite the pulmonary circulation’s exposure to the same level of glucose. We hypothesized that pulmonary artery endothelial cells are protected from the detrimental effects of hyperglycemia because they take up less glucose than endothelial cells in the systemic circulation, either because of intrinsic differences between the two cell types or because the lower oxygen tension in the pulmonary arterial blood depresses glucose uptake. To test this hypothesis, we exposed normoglycemic and hyperglycemic bovine pulmonary artery (PAECs) and aortic endothelial cells (AECs) from the same animal to progressively lower oxygen tensions and determined glucose uptake. In contrast with our initial hypothesis, we detected no significant difference in glucose uptake between the two cell types. Furthermore, glucose uptake in both PAECs and AECs increased, not decreased, as the oxygen tension dropped; this oxygen-dependent increase in glucose uptake in endothelial cells predominated over the hyperglycemia-mediated decrease in glucose uptake that has been reported by others. Despite the increase in glucose uptake at lower oxygen tensions, we detected no corresponding increase in protein carbonylation or advanced glycation endproducts. These results demonstrate that small physiologically relevant changes in oxygen tension can have an important impact on glucose uptake in endothelial cells. These results also demonstrate that an increase in glucose uptake, by itself, is not sufficient to generate ROS-mediated protein carbonylation or increase intracellular advanced glycation endproducts in vascular endothelial cells.