Extent of physician-pharmaceutical industry interactions in low- and middle-income countries: a systematic review.

Background: Pharmaceutical companies spend large amounts of money promoting their products to physicians. There is evidence that physicians' interactions with pharmaceutical companies negatively affect their prescribing patterns. The objective of this study was to systematically review the extent of the relationship between physicians and pharmaceutical companies in low- and middle-income countries (LMICs). Methods: Studies assessing the extent of any type of interaction between practicing physicians and pharmaceutical companies were eligible. We searched MEDLINE and EMBASE databases in July 2016. Reviewers worked in duplicate and independently to complete study selection, data abstraction and assessment of methodological features. We summarized the findings narratively. Results: We included 11 eligible studies (7 quantitative and 4 qualitative). Quantitative studies found that pharmaceutical company representatives visited at least 90% of physicians. Printed material, stationery items and drug samples were the most frequently received gifts. Two of the studies assessing direct payment found percentages of 16 and 5%, respectively. Findings of qualitative studies were consistent with those of quantitative studies. In addition, they revealed an increasing tendency for pharmaceutical companies to provide expensive personal gifts, sponsor social events and offer cash as inducements to physicians based on their demands. They also identified building personal relationships, creating a sense of indebtedness and emotional blackmailing as commonly used techniques to influence physicians. Conclusion: A relatively high percentage of physicians in LMICs interact with pharmaceutical companies. Findings have implications for policy and practice, given the current extent of interaction is likely affecting the prescribing habits and professional behaviour of physicians.

Glycosylation and other PTMs alterations in neurodegenerative diseases: Current status and future role in neurotrauma.

Traumatic brain injuries (TBIs) present a chief public health threat affecting nations worldwide. As numbers of patients afflicted by TBI are expected to rise, the necessity to increase our understanding of the pathophysiological mechanism(s) as a result of TBI mounts. TBI is known to augment the risk of developing a number of neurodegenerative diseases (NDs) such as Alzheimer's disease (AD) and Parkinson's disease (PD). Hence, it is rational to assume that a common mechanistic ground links the pathophysiology of NDs to that of TBIs. Through this review, we aim to identify the protein-protein interactions, differential proteins expression, and PTMs, mainly glycosylation, that are involved in the pathogenesis of both ND and TBI. OVID and PubMed have been rigorously searched to identify studies that utilized advanced proteomic platforms (MS based) and systems biology tools to unfold the mechanism(s) behind ND in an attempt to unveil the mysterious biological processes that occur postinjury. Various PTMs have been found to be common between TBI and AD, whereas no similarities have been found between TBI and PD. Phosphorylated tau protein, glycosylated amyloid precursor protein, and many other modifications appear to be common in both TBI and AD. PTMs, differential protein profiles, and altered biological pathways appear to have critical roles in ND processes by interfering with their pathological condition in a manner similar to TBI. Advancement in glycoproteomic studies pertaining to ND and TBI is urgently needed in order to develop better diagnostic tools, therapies, and more favorable prognoses.