Caffeine is the most popular psychoactive drug in the world which contributes to behavioral and metabolic changes when ingested. Within the central nervous system (CNS), caffeine has a high affinity for A1 and A2a adenosine receptors. Serving as an antagonist, caffeine affects the ability for adenosine to bind to these receptors. Caffeine has been shown to alter neuronal functioning through increasing spontaneous firing. However, the effects of caffeine on non-neuronal cells in the CNS has been not been studied extensively. Microglia are one phenotype of non-neuronal glia within the CNS. Acting as phagocytes, they contribute to the immune defense system of the brain and express A1 and A2a adenosine receptors. Caffeine, therefore, may affect microglia. In order to test this hypothesis, CD-1 mice were randomly placed into one of three groups: control, low caffeine (0.3g/L water) and high caffeine (1.0g/L water) and were allowed to drink freely for 30 days. Following 30 days, brain sections were stained to reveal microglia. Morphological reconstructions and density measurements were examined in cortical and subcortical areas including the primary sensory cortex, primary motor cortex and striatum. Results indicate that microglial density throughout the brain is decreased in the caffeine groups as compared to the control. Caffeine also impacted microglia morphology shortening process length and decreasing branching. These results suggest that chronic caffeine ingestion has a systemic impact on microglia density and their activation.
Purpose Surgery is predominantly a masculine profession worldwide and has largely excluded women in leadership positions. This paper aims to examine the representation of women surgeons in leadership positions in Pakistan. Design/methodology/approach Data were drawn from larger qualitative research examining the experiences of women surgeons in Pakistani hospitals. The data comprises in-depth interviews with ten doctors working in the Rawalpindi and Islamabad cities. The participants were selected by using the purposive sampling method and data were analyzed using thematic analysis. Findings This study included participants from diverse surgical specialties from different stages of their career with two having leadership experience. Based on participants’ perspectives several factors are responsible for this exclusion of women in leadership positions. The most prominent among these were long working hours for surgical leaders, greater responsibilities assigned to leadership positions, gender stereotypes and work–family conflict. Due to masculine hegemony, women were considered less capable and they were expected to have masculine traits to work as successful leaders. Interestingly, some participants had internalized such stereotypes and showed a lack of interest and lack of capabilities for surgical leadership as evident from their narratives. Research limitations/implications The findings of this paper are drawn from the perspectives of ten women surgeons working in Islamabad and Rawalpindi cities of Pakistan who were selected using a convenient sampling method. Hence, the results cannot be generalized to the larger population of women surgeons working in other cities of the country. Nevertheless, this study is unique in the sense that it provides useful insight into the experiences of the women surgeons and their perspectives on surgical leadership in Pakistani hospitals. Academically, it contributes to the global debates on surgical leadership by providing empirical evidence from Pakistan. Originality/value This paper contributes to the larger debates on the under-representation of women in leadership positions in surgery by unveiling the experiences of female surgeons from Pakistan. It calls for the need for structural changes in health management and policy to accommodate women surgeons. Organizational efforts could minimize some hurdles and encourage more women to take on more formal leadership roles. The authors also call for an increasing number of women in surgery to pave the way for creating new leadership opportunities.
Background: Tension type headache is claimed to be one of top ten disabling conditions in the world. The purpose of the study was to determine the effects of muscle energy technique on pain, range of motion at cervical spine and disability related to tension type headache. Methods: A randomized control trial was conducted on 48 participants of both genders whose age was 18 to 40 years with complain of tension type at Rehabilitation and Injury Management Department of Medcare International Hospital Gujranwala, from July to December 2019. Participants were randomly selected and allocated into two groups (experimental and control group). The experimental group received both muscle energy technique and myofascial release technique on trapezius and sternocleidomastoid of both sides. The intervention was applied for 6 weeks (3 sessions per week). Assessments were done at baseline, 4th week and 6th week. Numeric pain rating scale (NPRS), Headache disability inventory (HDI), headache impact test (HIT) and cervical range of motion with the help of Inclinometer were tools for assessment. Data analysis was done using SPSS (version 21). Results: The mean age of experimental group was 26.5±5.42 and control group was 27.7±5.70. The experimental group was shown significant improvement in terms of pain and flexion and side flexion range of motion with p-value ≤0.05. Conclusion: It is concluded that muscle energy technique is effective treatment for tension type headache; it is associated to decreased range of motion at cervical spine and disability related to TTH. Trial registration: IRCT20190121042445N2, Registered 07-02-2021.
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