Psychosocial interventions for patients with head and neck cancer: past, present, and future

A diagnosis of head and neck cancer, like any cancer diagnosis, is often accompanied by much fear and uncertainty. In addition, patients with head and neck cancer face difficulties in eating, chewing, drinking, breathing, speaking, as well as changes in appearance. Simultaneously, the burden of head and neck cancer is often manifested in psychosocial dysfunction, which can have a negative impact on quality of life. Although a phenomenon well recognized, little is known about many factors that influence or impact psychosocial dysfunction in individuals with head and neck cancer. Even less is known about the effective management of psychosocial dysfunction. To date, there is evidence to suggest that psychosocial interventions generally provide an overall positive effect. Moreover, some intervention studies, such as education alone, have failed to achieve the desired results. In addition, some studies suggest an advantage of cognitive- behavioral therapy over other forms of psychological treatment. With the growing impetus to investigate factors associated with psychosocial dysfunction, and considerable advancement in the development and validation of many global and disease-specific measures, there is an opportunity for further research to develop an appropriate clinical intervention program for such patients.     

Women's perceptions of caesarean birth: a Roy international study

The purpose of this Roy adaptation model-based multi-site international mixed method study was to examine the relations of type of caesarean birth (unplanned/planned), number of caesarean births (primary/repeat), and preparation for caesarean birth to women's perceptions of and responses to caesarean birth. The sample included 488 women from the United States (n = 253), Finland (n = 213), and Australia (n = 22). Path analysis revealed direct effects for type of and preparation for caesarean birth on responses to caesarean birth, and an indirect effect for preparation on responses to caesarean birth through perception of birth the experience.     

"I can't imagine my life without it!" Curling and health promotion: a photovoice study

The sport of curling is an important activity in rural Canada, with many female participants. The health of women in rural Canada is much compromised compared to that of their urban counterparts, yet little research has explored ways to promote the health of rural women. This study examined the influence of curling on the health of women in rural Canada. A sample of 15 women and girls aged 12 to 72 from 2 communities in southwestern Ontario took pictures, kept logbooks, and participated in 2 group sessions to discuss the influence of curling on their health. The findings reveal that curling facilitates social connections, enhances physical and mental health, and provides a valued and visible way to support rural life. Clearly, curling promotes the health and community life of rural women in significant ways. More support for curling in rural settings is needed, and additional research on the topic of curling and the health of rural women is indicated.     

The promise and perils of a weekend nursing program

In 1996, a weekend nursing program was created as an addition to the traditional weekday schedule to accommodate an increased number of qualified applicants seeking admission to the baccalaureate nursing program. Five years after the inception of the program, a comprehensive evaluation study was conducted to examine the impact of the weekend course schedule on students and faculty. The opportunities and challenges associated with the implementation of an alternative program schedule for entry-level nursing students are presented.     

Population pharmacokinetics of rifapentine and its primary desacetyl metabolite in South African tuberculosis patients

This study was designed to describe the population pharmacokinetics of rifapentine (RFP) and 25-desacetyl RFP in a South African pulmonary tuberculosis patient population. Special reference was made to studying the influence of previous exposure to rifampin (RIF) and the variability in pharmacokinetic parameters between patients and between occasions and the influence of different covariates. Patients were included in the study if they had been receiving first-line antimycobacterial therapy (rifampin, isoniazid, pyrazinamide, and ethambutol) for not less than 4 weeks and not more than 6 weeks and were divided into three RFP dosage groups based on weight: 600 mg, <45 kg; 750 mg, 46 to 55 kg; and 900 mg, >55 kg. Participants received a single oral dose of RFP together with concomitant antimycobacterial agents, excluding RIF, on study days 1 and 5 after they ingested a soup-based meal. The RFP and 25-desacetyl RFP concentration-time data were analyzed by nonlinear mixed-effect modeling using NONMEM. The pharmacokinetics of the parent drug were modeled separately, and the individual pharmacokinetic parameters were used as inputs for the 25-desacetyl RFP pharmacokinetic model. A one-compartment disposition model was found to best describe the data for both the parent and the metabolite, and the metabolite was assumed to be formed only from the central compartment of the parent drug. Prior treatment with RIF did not alter the pharmacokinetics of RFP but appeared to increase the excretion of 25-desacetyl RFP in a nonlinear fashion. The RFP oral clearance and volume of distribution were found to increase by 0.049 liter/h and 0.691 liter, respectively, with a 1-kg increase from the median weight of 50 kg. The oral clearance of 25-desacetyl RFP was found to be 35% lower in female patients. The model developed here describes the population pharmacokinetics of RFP and its primary metabolite in tuberculosis patients and includes the effects of prior administration with RIF and covariate factors.     

Monocytic Myeloid-Derived Suppressor Cells Underpin Resistance to Adoptive T Cell Therapy in Nasopharyngeal Carcinoma

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Factors influencing the use and provision of respite care services for older families of people with a severe mental illness

Family carers of people with a severe mental illness play a vital, yet often unrecognized and undervalued role in Australian society. Respite care services can assist these family carers in their role; however, little is known about their access to these services. The paper addresses this knowledge gap. An exploratory field study was conducted throughout the eastern suburbs of Sydney, Australia, to identify and examine the factors influencing the use and provision of respite services for older carers of people with a mental illness. Semistructured, in-depth interviews, and structured self-completed questionnaires were conducted with older family carers, mental health care professionals, and respite care service providers. Additionally, relevant documents (local policies, strategic plans and reports on respite care) were reviewed. It was found that current respite services are problematic for older family carers of Australians with a mental illness, signalling the need for concerted efforts by carers, health professionals, and service providers to improve access. Changes to respite provision and utilization are recommended.     

Effects of Azithromycin,Metronidazole, Amoxicillin,and Metronidazole plus Amoxicillin on an In Vitro Polymicrobial Subgingival Biofilm Model

Chronic periodontitis is one of the most prevalent human diseases and is caused by dysbiosis of the subgingival microbiota. Treatment involves primarily mechanical disruption of subgingival biofilms and, in certain cases, adjunctive use of systemic antibiotic therapy. In vitro biofilm models have been developed to study antimicrobial agents targeting subgingival species. However, these models accommodate a limited number of taxa, lack reproducibility, and have low throughput. We aimed to develop an in vitro multispecies biofilm model that mimics subgingival plaque, to test antimicrobial agents. Biofilms were cultivated using the Calgary Biofilm Device and were exposed to amoxicillin (AMX), metronidazole (MTZ), azithromycin (AZM), and AMX-MTZ at four different concentrations for 12, 24, or 36 h. Chlorhexidine (CHX) (0.12%) was used as the positive control. The compositions of the biofilms were analyzed by checkerboard DNA-DNA hybridization, and the percent reduction in biofilm metabolic activity was determined using 2,3,5-triphenyltetrazolium chloride and spectrophotometry. Thirty-five of the 40 species used in the inoculum were consistently recovered from the resulting in vitro biofilms. After 36 h of exposure at the 1:27 dilution, AMX-MTZ reduced metabolic activity 11% less than CHX (q = 0.0207) but 54% more than AMX (q = 0.0031), 72% more than MTZ (q = 0.0031), and 67% more than AZM (q = 0.0008). Preliminary evidence of a synergistic interaction between AMX and MTZ was also observed. In summary, we developed reproducible biofilms with 35 subgingival bacterial species, and our results suggested that the combination of AMX and MTZ had greater antimicrobial effects on these in vitro multispecies biofilms than expected on the basis of the independent effects of the drugs.