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Social Psychiatry and Psychiatric Epidemiology - Maternal depression has been associated with bonding difficulties and lower maternal sensitivity in observed mother–infant interactions....  相似文献   
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Objective: Tea (Camellia sinensis Linn.; family: Theaceae) is popular as a stimulant beverage across the globe and is also utilized as a functional antioxidant in alternative medicine. This study has evaluated the impact of seasonal variation on phyto-constituents of tea.

Method: The antiproliferative potential of methanolic extracts of tea leaves collected in the rainy season (MECR) was compared with the extract of tea leaves collected in the autumn season (MECA) of the same mother plant. Evaluation of in vivo antitumor activity was carried out in adult female Swiss albino mice groups inoculated with Ehrlich ascites carcinoma (EAC) cells. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used to compare efficacy of MECR with that of MECA in the EAC cell line. Both qualitative and quantitative tests for phytochemical constituents present in MECA and MECR were performed. Antitumor efficacy of both the extracts was determined by evaluating different tumor markers showing dose-dependent cytotoxicity.

Results: Statistically significant reduction in EAC-induced tumor was observed in MECR treated mice compared to MECA treated ones. Cell decimation was significantly higher with MECR treatment, where restoration of different parameters including tissue structures returned to normal. Moreover, gas chromatography–mass spectrometry (GC-MS) study revealed the presence of cyclobarbital and benzazulene derivative in MECR, which is thought to be a novel source of these chemicals.

Conclusions: To our knowledge, there is no report that has attempted to reveal nutritional changes in terms of efficacy and variation in anticancer constituents in tea leaves, plucked in two seasons. This study revealed a novel source of barbital and benzazulene derivative. The unique presence of cyclobarbital and benzazulene, as revealed from GC-MS data, in methanolic extract of tea leaves collected during the rainy season (MECR) may have contributed to its enhanced in vitro (adopting MTT assay) and in vivo (on EAC-infected Swiss albino mice) cytotoxicity vis-à-vis antiproliferative properties compared to methanolic extract of tea leaves collected during the autumn season (MECA). The nature of plucking leaves in the two selected seasons is different.  相似文献   

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Various factors limit access to and utilization of health services even when provided at subsidized cost. This results in poor utilization of services that contributes to further economic impoverishment and health care disparity. Many countries are experimenting with various approaches to tackle the poor utilization of health care services including demand‐side financing policy. This paper explains the policymaking process during the formulation of safe delivery incentive program, a conditional cash transfer program in Nepal using Kindgon's multiple streams framework. Analysis of earlier policies and programs around safe motherhood concludes that high transportation cost was a major cause for poor utilization of institutional obstetric care, despite being provided at free of cost. Health was recognized as fundamental constitutional right in 2007. This assured societal support and political commitments for protecting health constitutionally. Furthermore, there was commitment from external development partners (EDPs) for investment in maternal health. Together, these problem, policy, and politics opened Kingdon's “windows of opportunity” for formulation of conditional cash transfer policy. This paper presents evolution of Aama Surakshya Karyakram and uses Kingdon's multiple streams framework to explain how problem, policy, and politics streams converged together to allow this program to be introduced in Nepal.  相似文献   
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