Associations between Moderate-to-Vigorous Physical Activity and Neighbourhood Recreational Facilities: The Features of the Facilities Matter

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Women's sexuality after termination of pregnancy in Hong Kong Chinese

Objective: Our aim is to determine sexuality after termination of pregnancy (TOP) in Hong Kong Chinese. Design: This was a prospective study using self-administered questionnaires given before and eight weeks after abortion. Subjects: Women over age 18 years old requesting TOP were invited to participate in the study during the period 6 December 2005 to 28 March 2006. Main outcome measures: Sexual function, couple relationship and psychological well-being like depression and post-traumatic stress disorder (PTSD) were assessed. Contraception was also reviewed. Results: No significant change in the number of women who presented with sexual dysfunctions before and after abortion. However, women reported subjective decrease in sexual functions after TOP, ranging from 9.8% for those with increased vaginal pain to 24.5% for those with decreased sexual desire. Majority of them (74.8%) suffered from at least moderate degree of post-traumatic stress symptoms and 10.2% had symptoms suggestive of the presence of a PTSD. Significant associations were seen in subjective decrease of sexual functions with post-traumatic stress symptoms after termination of pregnancy. On the other hand, 41.6% felt less depressed after abortion. There was no significant change in couple relationship after abortion. Conclusion: Termination of pregnancy did not cause sexual dysfunctions. However, significant proportion of women did suffer from decreased sexual functions subjectively which may be due to stress related to unplanned pregnancy or the TOP. The abortion itself did not cause depression and women who had completed family were less depressed after abortion. Post-traumatic stress was prevalent in those having abortion and the symptoms were associated with the subjective decrease in sexual functions.published_or_final_versio

Investigation of Phellinus linteus mushroom extract on cell cycle of colon cancer cell LS 174T under oxidative stress challenge

Phellinus linteus (PL) has traditionally been used as a medicinal mushroom in some countries such as China, Japan and Korea. It was found the fruiting body of PL is rich in bioactive phytochemicals. The antioxidant property of PL has been associated in preventing cancer progression. It is also suggested that the polysaccaharides component of PL is responsible for antitumor and immuno-modulatory effect in vivo and in vitro. However, the mechanism of the inhibition effect and invasive behavior of PL on cancer such as LS 174T colonic carcinoma is not well elucidated. PL is suggested to be able to inhibit cancer cell adhesion and invasion of the extracellular matrix. Therefore, it is believed that PL can exert antitumor effect by initiating apoptosis and cell cycle blockade in ...postprin

Objective evaluation of recreational facilities: Development and reliability of the Recreational Facility Audit Tool

The characteristics of recreational facilities are determinants of facility use and physical activity, yet there are few validated and extensive audit tools gauging characteristics of recreational facilities. This study aimed to describe the development of a 111-item audit tool that objectively evaluates the characteristics of recreational facilities across 10 domains, including the availability of sports facilities, accessibility to the facility, availability of supportive amenities, conditions of changing rooms, conditions of toilets, management, policy, environmental safety, aesthetics, and social environment. The intra- and inter-rater reliability indices of the audit tool were also examined. In the intra-rater reliability tests, 20 recreational facilities were examined twice by the same auditor, with one week apart between each audit. The inter-rater reliability was assessed using data from 20 recreational facilities that were examined twice by two independent auditors. Kappa statistics, percent agreement and intra-class correlation coefficients were computed. The average intra- and inter-rater percent agreement was 96.9% and 90.6% respectively. The majority of items (n=107 and 101) showed either good percent agreement or acceptable kappa values in the intra- and interreliability tests respectively. The overall intra- and inter-rater reliability of the audit tool was acceptable. Subjective and time-sensitive audit items may need clearer descriptions and multiple repeated measures to improve their reliability. The audit tool can be used to reliably assess indoor sports centres, parks, sports grounds, playgrounds and swimming pools. The objective data collected by this audit tool would contribute to the understanding of relationships between characteristics of recreational facilities, usage and physical activity.published_or_final_versio

Antibiotic sensitivity of putative pathogens in Chinese periodontal patients

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Clinical and microbiological effects of metronidazole dental gel in treated adult periodontitis subjects

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Clinical and microbiological response to mechanical periodontal treatment in Chinese adult periodontitis patients

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Heat-induced bubble expansion as a route to increase the porosity of foam-templated bio-based macroporous polymers

Macroporous polymers were prepared by mechanically frothing a bio-based epoxy resin and hardener mixture to first create air-in-resin liquid foams, followed by curing of these liquid foams. It was found that heating the air-in-resin liquid foams prior to their gelation decreased the viscosity of the resin mixture and increased the pressure of the air bubbles, leading to an isotropic expansion of the air bubbles. This resulted in an increase in the porosity of the resulting foam-templated macroporous polymers from 71% to 85%. Correspondingly, the compressive moduli (E) and strengths (σ) of the foam-templated macroporous polymers decreased from 231 MPa and 5.9 MPa, respectively, to 58 MPa and 1.9 MPa, respectively. This decrease is attributed to an increase in the porosity and pore throat frequency of the foam-templated macroporous polymers when heat was applied to the liquid foams. The deformation of the pores based on in situ SEM micro-compression test of the fabricated foam-templated macroporous polymers is also discussed