Prevalence of Falls and Fractures in Alzheimer's Patients Compared to General Population.

Introduction Alzheimer's disease (AD), found in the aging elderly population, is a progressive neurodegenerative disorder that leads to worsening memory loss and cognitive impairment. Falls and fractures are common in the overall elderly population. Hence, the purpose of this study is to determine the prevalence of falls and fractures in Alzheimer's patients compared to the general population. Methodology This longitudinal study was conducted at the neurology outpatient department (OPD) in a tertiary healthcare setup in Pakistan from November 2019 till April 2020. Previously confirmed diagnosed Alzheimer's patients from neurology OPD were included in one group. Equal number of gender and age-matched healthy participants were included in the reference group. Participants were followed for 12 months to determine the incidence of falls and non-vertebral fractures. Results The incidence of fall was significant in the Alzheimer group compared to the reference group (22.8% vs. 10.9%; relative risk (RR): 2.08; P-value: 0.01). Fractures were also significantly more common in the Alzheimer group compared to the reference group (12.8% vs. 5.1%; RR: 2.51; P-value: 0.03). Conclusion This study demonstrated a higher incidence of falls and fractures in Alzheimer's patients compared to healthy non-Alzheimer individuals. Management of AD should include measures to reduce falls and fractures in addition to standard therapy.

Prevalence and Symptom Characteristics of Irritable Bowel Syndrome Among Bronchial Asthma Patients in Pakistan.

INTRODUCTION: Irritable bowel syndrome (IBS) is a common gastrointestinal disorder that leads to a variety of symptoms including abdominal discomfort and change in stool frequency and consistency. Asthma is a common disease of the airway. Some studies have suggested that a relationship between IBS and asthma exist, while others have contradicted the claim. This study aims to determine the prevalence of IBS in asthmatic patients and compare their symptoms with symptoms of IBS patients in non-asthmatic patients. METHODOLOGY: In this case-control study, 100 known and documented asthmatic patients were included as cases, and 100 non-asthmatic healthy patients were included as controls from July to August 2019. These patients were given a questionnaire based on ROME II criteria for the diagnosis of IBS. Prevalence and symptoms of IBS were compared between cases and controls. A probability level, P < 0.05 was considered significant.  Result: IBS was found in 41 out of 100 asthma patients (41%) and 18 out of 100 controls (18%) with a P-value of 0.0005 and was more common in females in both asthmatic (63.41%) and non-asthmatic patients (66.66%). Symptoms such as abdominal pain/distress (63.41% vs. 11.11%, P-value: 0.0013) and bloating (82.92% vs. 33.33%, P-value: 0.0005) were significantly higher in asthmatic patient with IBS compared to non-asthmatic patient with IBS. CONCLUSION: Prevalence of IBS among asthma patients was significantly higher as compared to non-asthmatics. Routine screening of asthma patients and further studies to understand the pathogenesis underlying association between IBS and asthma should be conducted to detect and manage such patients effectively.

Osteogenic differentiation of human adipose derived stem cells on chemically crosslinked carbon nanomaterial coatings.

Carbon nanomaterial coatings have been widely investigated for many biomedical applications including bone tissue engineering. Current methods to fabricate carbon nanomaterial coatings are limited by specific substrate requirements and the lack of strong bonds between the nanomaterials. Furthermore, few studies compare the effect of carbon nanoparticle architecture on stem cell differentiation and mineralization for osteogenic differentiation. Herein, we report a study comparing chemically crosslinked carbon nanotubes (of various diameters), graphene nanoplatelets, and graphene nanoribbons coatings for adipose derived stem cell differentiation toward an osteogenic lineage. We observed greatest autodeposition of calcium on graphene nanoribbon surfaces, while multiwalled carbon nanotubes of high diameter had the greatest influence on stem cell fate (by alkaline phosphatase activity, calcium deposition, and osteocalcin measurements). Studies indicate the cause for multiwalled carbon nanotube related stem cell differentiation, may be related to early timepoint toxicity as indicated by lactose dehydrogenase release. These results indicate suggestions for orthopedic tissue engineering applications for carbon nanomaterial coatings. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 1189-1199, 2018.