Knowledge, attitudes and practices among healthcare professionals regarding complementary alternative medicine use by patients with hypertension and type 2 diabetes mellitus in Western Jamaica.

OBJECTIVES: This study investigated the knowledge, attitudes, and practices (KAP) of healthcare professionals (HCPs) regarding CAM use for Hypertension (HTN) and Type 2 Diabetes Mellitus (T2DM) among patients in western Jamaica, and to determine HCPs' perceptions of the need for training on CAM. DESIGN: A cross-sectional study was conducted from May to August 2019. SETTING: HCPs serving patients with HTN and T2DM in chronic disease clinics in western Jamaica completed a self-administered questionnaire that provided data on their sociodemographic characteristics, training, and KAP of CAM. MAIN OUTCOME MEASURE: The data identified factors associated with discussion and recommendation of CAM to patients and personal use of CAM by HCPs. RESULTS: Type of profession (physicians vs nurses OR = 2.17; 95 % CI = 1.07-4.42 and pharmacists vs nurses OR = 8.67; 95 % CI = 2.83-26.57) was significantly associated with discussion of CAM. Training on CAM was significantly associated with discussion (OR = 2.36; 95 % CI = 1.26-4.42), recommendation (OR = 2.72; 95 % CI = 1.36-5.42), and personal use of CAM (OR = 2.90; 95 % CI = 1.69-4.97). Dieticians and nutritionists had 4.56 higher odds of personal use of CAM (95 % CI = 1.16-17.86), and personal use of CAM was significantly associated with discussion (OR = 8.94; 95 % CI = 4.76-16.80) and recommendation (OR = 7.17; 95 % CI = 3.54-14.51) of CAM. The majority of HCPs (70-89 %) agreed that there is a need to include CAM in professional training programs. CONCLUSION: The results of this study can be used to guide development of programs for training HCPs on knowledge and safe use of CAM so that they can better serve their patients.

A fission yeast platform for heterologous expression of mammalian adenylyl cyclases and high throughput screening.

The fission yeast Schizosaccharomyces pombe uses a cAMP signaling pathway to link glucose-sensing to Protein Kinase A activity in order to regulate cell growth, sexual development, gluconeogenesis, and exit from stationary phase. We previously used a PKA-repressed fbp1-ura4 reporter to conduct high throughput screens (HTSs) for inhibitors of heterologously-expressed mammalian cyclic nucleotide phosphodiesterases (PDEs). Here, we describe the successful expression of all ten mammalian adenylyl cyclase (AC) genes, along with the human GNAS Gαs gene. By measuring expression of an fbp1-GFP reporter together with direct measurements of intracellular cAMP levels, we can detect both basal AC activity from all ten AC genes as well as GNAS-stimulated activity from eight of the nine transmembrane ACs (tmACs; AC2-AC9). The ability to use this platform to conduct HTS for novel chemical probes that reduce PKA activity was demonstrated by a pilot screen of the LOPAC®1280 library, leading to the identification of diphenyleneiodonium chloride (DPI) as an inhibitor of basal AC activity. This screening technology could open the door to the development of therapeutic compounds that target GNAS or the ACs, an area in which there is significant unmet need.

Fission yeast-based high-throughput screens for PKA pathway inhibitors and activators.

Features of the fission yeast Schizosaccharomyces pombe cAMP/PKA pathway make S. pombe particularly amenable for heterologous expression of cAMP pathway proteins such as GαS subunits and their cognate adenylyl cyclases, PKA catalytic and regulatory subunits, and cyclic nucleotide phosphodiesterases. We have constructed two PKA-repressed reporters for use in high-throughput screens to detect compounds that elevate or reduce PKA activity, thus facilitating the discovery of both inhibitors and activators of these target proteins. Here, we describe steps to construct screening strains and to optimize and conduct these screens.

Changes of calcium binding proteins, c-Fos and COX in hippocampal formation and cerebellum of Niemann-Pick, type C mouse.

Niemann-Pick disease, type C (NPC) is an intractable disease that is accompanied by ataxia, dystonia, neurodegeneration, and dementia due to an NPC gene defect. Disruption of calcium homeostasis in neurons is important in patients with NPC. Thus, we used immunohistochemistry to assess the expression levels of calcium binding proteins (calbindin D28K, parvalbumin, and calretinin), c-Fos and cyclooxygenase-1,2 (COX-1,2) in the hippocampal formation and cerebellum of 4 and 8 week old NPC+/+, NPC+/-, and NPC-/- mice. General expression of these proteins decreased in the hippocampus and cerebellum of NPC-/- compared to that in both young and adult NPC+/+ or NPC+/- mice. Parvalbumin, COX-1,2 or c-Fos-immunoreactive neurons were widely detected in the CA1, CA3, and DG of the hippocampus, but the immunoreactivities were decreased sharply in all areas of hippocampus of NPC-/- compared to NPC+/+ and NPC+/- mice. Taken together, reduction of these proteins may be one of the strong phenotypes related to the neuronal degeneration in NPC-/- mice.