Tumor resistance to anti-mesothelin CAR-T cells caused by binding to shed mesothelin is overcome by targeting a juxtamembrane epitope

Despite many clinical trials, CAR-T cells are not yet approved for human solid tumor therapy. One popular target is mesothelin (MSLN) which is highly expressed on the surface of about 30% of cancers including mesothelioma and cancers of the ovary, pancreas, and lung. MSLN is shed by proteases that cleave near the C terminus, leaving a short peptide attached to the cell. Most anti-MSLN antibodies bind to shed MSLN, which can prevent their binding to target cells. To overcome this limitation, we developed an antibody (15B6) that binds next to the membrane at the protease-sensitive region, does not bind to shed MSLN, and makes CAR-T cells that have much higher anti-tumor activity than a CAR-T that binds to shed MSLN. We have now humanized the Fv (h15B6), so the CAR-T can be used to treat patients and show that h15B6 CAR-T produces complete regressions in a hard-to-treat pancreatic cancer patient derived xenograft model, whereas CAR-T targeting a shed epitope (SS1) have no anti-tumor activity. In these pancreatic cancers, the h15B6 CAR-T replicates and replaces the cancer cells, whereas there are no CAR-T cells in the tumors receiving SS1 CAR-T. To determine the mechanism accounting for high activity, we used an OVCAR-8 intraperitoneal model to show that poorly active SS1-CAR-T cells are bound to shed MSLN, whereas highly active h15B6 CAR-T do not contain bound MSLN enabling them to bind to and kill cancer cells.

A non-randomized, controlled, interventional study to investigate the effects of community pharmacists' cognitive behavioral therapy-based interventions on medication adherence and relevant indicators in patients with depression

BACKGROUND

The prevalence of depression is increasing in Japan. Pharmacists play an important role in helping patients use medicines effectively. Several studies had investigated the impact of community pharmacists on patient adherence to antidepressant therapy, and their results indicated that further study was warranted.

METHODS

This study was conducted from June 2019 to May 2020 using a cluster non-randomized, open-label, parallel-group design. Four community pharmacy stores in Osaka and Hyogo Prefectures, Japan, participated in the study, and enrolled patients with unipolar depression. In the intervention group (IG), patients received cognitive behavioral therapy (CBT)-based medication support, and their medication adherence and adverse drug reactions were monitored by telephone. In the control group (CG), the pharmacists engaged in routine interactions with the study participants. Before participating in this study, the intervention-group pharmacists attended a 5-hour training session on CBT-based medication support. The primary outcome of this study was medication adherence, assessed using the Drug Attitude Inventory (DAI)-10. Secondary outcomes included the changes from baseline at 6 months in the following variables: the Patient Health Questionnaire (PHQ)-9 total score, the EQ-5D-5 L (Euro-QOL 5 dimensions 5 levels) score, patient satisfaction, and the Pharmacists' Confidence Scale about Medication Consultation for Depressive Patients (PCMCD) score.

RESULTS

Four pharmacies (two in IG and two in CG) completed the intervention period. Results were obtained from 19 patients in the IG and 12 patients in the CG. In the IG, the mean DAI-10 score increased from 4.941 at baseline to 6.105, the mean PHQ-9 score decreased from 9.263 to 8.625, and the mean patient satisfaction score increased from 39.947 to 42.211. In the CG, the mean DAI-10 score decreased from 6.333 to 4.167, the mean PHQ-9 score increased from 9.333 to 12.923, and the mean patient satisfaction score decreased from 38.929 to 38.167.

CONCLUSION

CBT-based medication support provided by community pharmacists may improve patient medication adherence to antidepressant therapy and symptoms. Such support can be expected to facilitate better treatment of depressed patients and may also allow the duration of treatment to be shortened.

TRIAL REGISTRATION

UMIN000037954, Date of first registration: 17/06/2019.

Community Pharmacists' Attitude, Practice and Confidence in Supporting People with Diabetes in Japan and Ireland: A Cross-sectional Survey

Diabetes is a chronic disease requiring long-term management. Poorly controlled diabetes is associated with reduced quality of life and micro- and macro-vascular complications. Community pharmacists have a role in supporting people with diabetes to better address their condition and reduce their risk of diabetes-related illness. The purpose of this study was to examine and compare the attitudes, practices, and confidence of community pharmacists in Japan and Ireland on the care of people with diabetes. A cross-sectional survey of community pharmacists in Ireland (388 respondents) and Japan (144 respondents) was conducted to assess their attitudes, practices, confidence, and other characteristics linked to diabetes management. A Likert scale was utilized, with a range of strongly agree to strongly disagree. The study reported that Japanese pharmacists have lower levels of practice (p<0.004), confidence, trust by patients, job satisfaction, concern with patients, and knowledge (all p<0.001) regarding diabetes management than Irish pharmacists. Although there was no significant difference in the attitude of pharmacists in both countries, the results show almost similar attitudes toward diabetes management, indicating their willingness to support people with diabetes. These results demonstrated less confidence in diabetes management and less practice of diabetes management care among Japanese pharmacists than Irish pharmacists. The results can be used to identify pharmacist education needs and develop training programs in diabetes management for pharmacists in Japan and Ireland.

Enhancement ofAcinetobacterbaumanniibiofilm growth by cephem antibiotics via enrichment of protein and extracellular DNAin thebiofilm matrices

AIMS

To determine the effects of subinhibitory concentrations of eight cephem and carbapenem antibiotics on thebiofilm formation ofAcinetobacterbaumanniicells and examine itseffect on pre-established biofilms.

METHODS AND RESULTS

Effects of antibiotics on biofilm formation were assayed using microtiter plates with polystyrene peg-lids.Cefmetazole, ceftriaxone, ceftazidime, and cefpirome increased the biomass of pre-established biofilms on pegs in the range of their sub-minimum inhibitory concentrations, whereas none increased biofilm formation by planktonic cells. Carbapenems had a negative effect.The constituents of antibiotic-induced biofilms were analyzed. Ceftriaxoneor ceftazidimetreatment markedly increased the matrix constituent amounts in the biofilms (carbohydrate, 2.7-fold; protein, 8.9-12.7-fold; lipid, 3.3-3.6-fold; DNA, 9.1-12.2-fold; outer membrane vesicles, 2.7-3.8-fold; and viable cells,6.8-10.1-fold).The antibiotic-enhanced biofilmshad increased outer membrane protein A and were resistant to the anti-biofilm effect of azithromycin.

CONCLUSIONS

Some cephems increased the biomass of pre-established biofilms in the ranges of their sub-minimum inhibitory concentrations.The antibiotic-enhanced biofilmspossessed more virulent characteristics than normal biofilms.

SIGNIFICANCE AND IMPACT OF THE STUDY

Incomplete administration of certain cephems followingbiofilm-related Ac.baumannii infectionscould adversely cause exacerbated and chronic clinical results.

Impact of interventions by a community pharmacist on care burden for people with dementia: development and randomized feasibility trial of an intervention protocol

Background

Traditionally, the role of pharmacists has been to manage and monitor pharmacotherapy for patients with dementia. However, additional intervention by community pharmacists to collect and share patient information with other professionals may help reduce the care burden among caregivers. The aims of this study were to examine (1) the feasibility of a designed community pharmacist working procedure in dementia care and (2) the expected impact of pharmacist intervention on care burden.

Methods

This was a randomized, open-label, parallel-group feasibility study, involving eight Nara City pharmaceutical association member pharmacies that provided consent to participate. These pharmacies were assigned to an intervention group or a control group at a 1:1 ratio. The subjects were patients with dementia and their primary caregivers that visited the participating pharmacies and provided consent to participate. Pharmacists in the intervention group actively collected information from the patients’ family physicians and care managers and intervened to address medication-related problems, while those in the control group only performed their normal duties. The primary endpoint was a change in the caregiver’s score on the Japanese version of Zarit Caregiver Burden interview (J-ZBI) from the baseline to after 5 months of follow-up. The changes in mean J-ZBI scores from the beginning to the end of the study period of the two groups were compared.

Results

Obtaining consent from caregivers was certainly difficult, but possible. Pharmacists managed to fill out the survey form while practising pharmaceutical care. Totally, nine patients and nine caregivers in the intervention group and nine patients and eight caregivers in the control group completed the study. The changes in J-ZBI scores could be calculated for seven cases in the intervention group and five cases in the control group. The J-ZBI scores were found to decrease by 1.0 in the intervention group and increase by 3.0 in the control group.

Conclusions

The protocol presented was considered feasible, but, the intervention process needs to be simplified in order to conduct a large study. Also, improvements are needed in the various survey forms and in the explanatory documents for caregivers. Although the sample size was small, the effect sizes suggested that community pharmacist interventions for patient with dementia may reduce the care burden for caregivers.

Trial registration

UMIN000039949 (registration date: 1 April 2020, retrospectively registered)

Supplementary Information

The online version contains supplementary material available at 10.1186/s40814-022-01071-7.

Self-efficacy of community pharmacists and associated factors in counselling to support self-medication in Japan: A cross-sectional study

Background:

In 2016, the Ministry of Health, Labour and Welfare established the Health Support Pharmacy Certification System. The certification requirements include a track record of counseling regarding the use of over-the-counter drugs (OTC). Therefore, pharmacists must increase their self-efficacy for counseling.

Objectives:

To determine pharmacists’ self-efficacy for OTC counseling and related factors.

Methods:

A web-based survey was conducted. Multivariate analysis was conducted to test the relationship among the mean scores of self-efficacy for OTC counselling for 25 symptoms, pharmacist attributes, years of work, psychosocial factor, job satisfaction, and level of trust from the community and patients.

Results:

We received responses from 250 people. The overall self-efficacy was 5.8 (SD= 2.4) but varied depending on the symptoms. Self-efficacy was relatively high for allergic symptoms (6.9), cold/influenza (6.9), and constipation (7.1), but relatively low for contraceptive drugs (3.8), palpitation/shortness of breath (4.6), and abnormal taste/smell (4.2). In bivariate analysis, items related to self-efficacy included “age” (Spearman correlation= 0.276, P<0.001), “academic background” (-0.208, P=0.001), “number of years of work” (0.267, P<0.001), “level of trust from the community” (0.155, P=0.014), “level of trust from patients” (0.271, P<0.001), “job satisfaction” (0.236, P<0.001), “role clarity” (0.181, P=0.004), and “positive challenge at work” (0.271, P<0.001). Multivariate analysis indicated that the number of years of work (Standardizing Coefficient: 0.22), trust from patients (0.13), and positive challenge at work (0.25) had a positive effect on self-efficacy.

Conclusions:

Years of work, recognition that they are trusted by patients, and positive challenge at work were important for the counseling self-efficacy of pharmacists. These results provide implications for pharmacy management and lifelong education strategies to promote self-efficacy in pharmacist counseling.

A pilot study of Pharmacist-Dietician Collaborative support and Advice (PDCA) for patients with type 2 diabetes in community pharmacy: A single-arm, pre-post study

Background:

In Japan, there is a pressing need to improve community health care to cope with the rapid aging of the population. In this context, there have been private-sector-led approaches to enhance community dietary support by employing dietitians in pharmacies.

Objectives:

To evaluate the effects of collaboration between dietitians and pharmacists working in pharmacies to support patients with type 2 diabetes.

Methods:

A single group pre- and post-comparative study was conducted on patients with type 2 diabetes mellitus. The intervention period was 6 months. During the intervention period, the dietitians provided dietary support to the patients after first providing them with medication guidance. The contents of these instructions were shared with the pharmacists. The contents of the instructions were recorded, and confirmed in monthly meetings with the principal investigator. The primary endpoint was the Hemoglobin A1c(HbA1c) level, and the secondary endpoints were high-density lipoprotein-cholesterol (HDL-c), low-density lipoprotein-cholesterol (LDL-c), Triglyceride (TG), degree of dietary self-management, degree of unbalanced diet and satisfaction with pharmacy services.

Results:

Eight patients completed the intervention period. The first patient’s intervention started in March 2021, and all patients’ interventions were completed by December 2021. The primary endpoint, the mean (SD) HbA1c, was 7.26 (0.96) at baseline and decreased to 6.63 (0.79) after 6 months (p=0.028, r=0.72). Also, the HDL-c increased from 55.00 (14.81) to 63.14 (10.11) (p=0.110, r=0.51) and the Diabetes Mellitus Dietary Self Efficacy Scale score increased from 51.67 (8.31) to 60.17 (8.45) (p=0.025, r=0.79) and the patient satisfaction score increased 24.0 (4.0) to 26.1 (3.3) (p=0.161, r=0.51). Moderate decreases were also observed in LDL-c (p=0.235, r=0.47) and TG (p=0.368, r=0.37).

Conclusions:

Collaboration between dietitians and pharmacists working in pharmacies may improve the dietary habits and glycemic control of patients with type 2 diabetes. To verify this hypothesis more reliably, randomized controlled trials need to be conducted.

A Cross-sectional Study of Demonstrating Expertise and Job Satisfaction in Pharmacists and Dietitians Working in Community Pharmacies in Japan

Background:

In Japan, there has been a private-sector initiative to register dietitians in pharmacies. There is not yet an adequate amount of data on the attitudes of dietitians in pharmacies regarding their work.

Objectives:

To assess the attitudes of pharmacists and dietitians working in community pharmacies in Japan about their work, and particularly about demonstrating expertise and overall job satisfaction.

Methods:

We administered a web-based questionnaire to pharmacists and dietitians working in pharmacy branches with registered dietitians at two pharmacy chains that agreed to cooperate. We used our own 7-item questionnaire and compared the scores for each item between pharmacists and dietitians.

Results:

A total of 61 persons (22 pharmacists and 39 dietitians) answered the questionnaire. The item with the highest mean score (standard deviation) for pharmacists was “I feel that I am helpful to patients,” at 3.50 (0.74), and for dietitians it was “I have colleagues at my workplace whom I can talk to when I have a problem,” at 3.51 (1.00). Conversely, the items with the lowest mean score (standard deviation) were “I am satisfied with my current job” for pharmacists, at 3.14 (0.83), and “I can grow sufficiently as a professional” for dietitians, at 2.41 (0.97). As a result of factor analysis, the seven-item question could be divided into two factors: “demonstrating expertise” and “overall job satisfaction.” The factor-score for “demonstrating expertise” was significantly lower for dietitians than for pharmacists (p<0.01), but there was no significant difference in overall job satisfaction between the two professions (p=0.36). Further research is needed to understand why dietitians find “demonstrating expertise” difficult in pharmacies.

Conclusions:

The attitudes of pharmacists and dietitians working in pharmacies in Japan toward their jobs were shown to consist of “demonstration of expertise” and “overall job satisfaction. Dietitians had significantly lower scores on “demonstration of expertise” than pharmacists.

Direct anti-biofilm effects of macrolides on Acinetobacter baumannii: comprehensive and comparative demonstration by a simple assay using microtiter plate combined with peg-lid

Recently, opportunistic nosocomial infections caused by Acinetobacter baumannii have become increasingly prevalent worldwide. The pathogen often establishes biofilms that adhere to medical devices, causing chronic infections refractory to antimicrobial therapy. Clinical reports have indicated that some macrolide antibiotics are effective against chronic biofilm-related infections. In this study, we examined the direct anti-biofilm effects of seven macrolides (azithromycin, clarithromycin, erythromycin, josamycin, spiramycin, fidaxomicin, and ivermectin) on A. baumannii using a simple and newly established in vitro assay system for the swift and serial spectrophotometric determinations of two biofilm-amount indexes of viability and biomass. These macrolides were found to possess direct anti-biofilm effects exerting specific anti-biofilm effects not exclusively depending on their bacteriostatic/bactericidal effects. The anti-biofilm effect of azithromycin was found to be the strongest, while those of fidaxomicin and ivermectin were weak and limited. These results provide insights into possible adjunctive chemotherapy with macrolides for A. baumannii infection. Common five macrolides also interfered with the Agrobacterium tumefaciens NTL(pCF218) (pCF372) bioassay system of N-acyl homoserine lactones, providing insights into sample preparation for the bioassay, and putatively suggesting the actions of macrolides as remote signals in bacterial quorum sensing systems.

[Introduction of Team-based Learning to Evidence-based Medicine Educational Course for Pharmacy Students]

In Japanese pharmaceutical education, the Model Core Curriculum was revised in 2013 to train pharmacists who can appropriately evaluate literature and use evidence-based medicine (EBM). However, in the investigation of EBM education at pharmaceutical universities in 2015, it was found that literature evaluation was hardly performed in the education of undergraduate students. One of the reason is the lack of EBM lecturers at each universities. Therefore, we adopted team-based learning (TBL) to educate more than 50 undergraduate students on the practical evaluation of literatures and the understanding of EBM concepts. The learning outcomes of this strategy were evaluated using the scores of individual tests before and after the class. As a result, the mean scores on the post-test significantly improved from 4.34 to 6.42 out of 10 total points (p<0.001). We further administered a questionnaire survey regarding the understanding of EBM (the mean score was 4.12). In conclusion, it was suggested that TBL for a large number was effective in EBM education for providing knowledge of literature evaluation and the understanding of fundamental concepts.

Creation and validation of a semi-quantitative instrument to assess the confidence of pharmacists in medication consultation for patients with depression: The pharmacists' confidence scale about medication consultation for depressive patients (PCMCD)

Objectives

To develop a semi-quantitative instrument to assess pharmacists' confidence in medication counseling for patients with depression, The Pharmacists' Confidence scale about Medication Consultation for Depressive patients (PCMCD), and investigated its validity.

Methods

Following discussions with practicing pharmacists, we developed a 12-item questionnaire to assess pharmacists' confidence in medication counseling for patients with depression. We launched web-based cross-sectional survey during November and December 2018 to 77 pharmacists employed at drug chain stores in Kansai area. Factor analysis was performed to evaluate the configuration concept validity. The least-squares method was used for factor extraction, and the resulting factors were subjected to direct oblimin rotation, with a factor loading cut-off of 0.4. To assess internal consistency, Cronbach's alpha values were calculated for each of the extracted factors (subscales). A multiple regression analysis was performed using simultaneous forced entry, with the scores obtained for each subscale as dependent variables and responder attributes as independent variables in order to investigate the factors associated with each subscale.

Results

During the factor analysis procedure, four questions were excluded by the cut-off rule. Eventually, a model with three subscales was identified, with a cumulative sum of squared loadings being 61.9%. The subscales were termed "relationship building," "comprehension of condition," and "information provision" based on the nature of the questions relevant for each of them. The Cronbach's alpha values for these subscales were 0.92, 0.73, and 0.72, respectively. The average inter-item correlation was 0.378. In addition, multiple regression analysis revealed that there were significant correlations between pharmacist career and both relationship building and information provision.

Conclusions

The PCMCD model demonstrated a satisfactory construct validity and internal consistency. This model will provide an excellent tool for assessing pharmacists' confidence in depression care.

Study of pharmacist intervention in polypharmacy among older patients: Non-randomized, controlled trial

AIM

We investigated the outcomes of interdisciplinary drug therapy interventions by pharmacists among older residents of special elderly nursing homes.

METHODS

The study was designed as a non-randomized, parallel-group, controlled study. Four nursing homes were allocated in a 1:1 ratio to an intervention group (IG) or control group (CG). The participants of the study were residents taking five or more medications. The nursing homes in the IG were each visited by one pharmacist, who was charged with looking for potential problems in drug therapy. Activities in the CG were carried out as usual. The intervention period was 6 months. The primary end-points were the incidences of potentially inappropriate medication (PIM) and falls. The mean difference and proportion of participants were compared between groups.

RESULTS

Data from 28 participants in the IG and 27 participants in the CG were analyzed. The number of PIM decreased from 2.64 at baseline to 2.39 after 6 months in the IG (P = 0.032). The proportion of participants in whom the use of PIM was reduced without problems was 17.9% in the IG and 3.7% in the CG (P = 0.094). The mean number of falls was 0.04 in the IG and 0.41 in the CG (P = 0.033). Falls occurred in 3.6% of participants in the IG and 22.2% of participants in the CG (P = 0.043).

CONCLUSIONS

The results suggested a trend toward fewer PIM and falls in the IG. Geriatr Gerontol Int 2019; ••: ••-••.

Pharmacist-Delivered Smoking Cessation Program in Community Pharmacy (The FINE Program) in Japan-The Development of a Training Course and a Feasibility Study

AIM

Although smoking cessation support has been recommended as a routine component of pharmacists'duties, there is limited evidence of smoking cessation being achieved successfully in community pharmacy. The aim of this study was to develop a new smoking cessation program for use in the community pharmacy setting and investigate its feasibility.

METHODS

A feasibility study (the Family pharmacist's Intervention for Nicotine Elimination [FINE] program) was conducted using 8 pharmacists at 2 community pharmacies in Japan. The pharmacists recruited as subjects smokers 20 or more years of age who were taking medications such as antidiabetes drugs. The patients completed questionnaires assessing their smoking status, and the pharmacists provided them with smoking cessation support services. Participating patients met with the pharmacists or talked to them on the phone 5 times at 2- to 4-week intervals and received personalized and structured brief smoking cessation advice. The primary outcome was continuous abstinence determined by Micro Smokerlyzer carbon monoxide monitor at 3 months.

RESULTS

Of 5306 patients, 2296 patients were screened and the rate of smoking was found to be 12.7%. Five smoking patients received the FINE program from pharmacists who had received training. One of the 5 succeeded in quitting smoking after 3 months.

CONCLUSIONS

This is the first study to target Japanese smoking patients in community pharmacies with a brief structured intervention. The results tentatively support the feasibility of the FINE program. Further research including a randomized controlled trial is required to confirm the effectiveness of the FINE program.

The change in pharmacists’ attitude, confidence and job satisfaction following participation in a novel hypertension support service

Objectives

To demonstrate how the confidence, attitude and job satisfaction of pharmacists who provide interventions and lifestyle support services to patients with hypertension are altered.

Methods

This study was a before-and-after study that used data from 50 pharmacists who participated in the Community Pharmacists Assist for Blood Pressure (COMPASS-BP) study, which was an interventional study that was conducted in Japan to evaluate the effects of lifestyle support services provided to hypertension patients. The pharmacists received 4 h of training before the study was initiated to learn how to quickly provide patients with guidance about diet and exercise and tobacco and alcohol consumption. During the interventional period, each pharmacist provided concise lifestyle guidance to 1–3 hypertension patients. The pharmacists met with the patients a total of 5 times. The parameters that were assessed were the pharmacists’ attitudes towards and confidence in their lifestyle support services, as well as their level of job satisfaction. We verified the scores of each parameter assessed before and after the study, as well as changes in the relationships among the different parameters.

Key findings

Significant increases from baseline to the end of the study were observed for Confidence (P &lt; 0.01), Job satisfaction, including ‘Knowledge’ (P &lt; 0.01), ‘Patient counselling management’ (P = 0.04) and ‘Sense of personal growth’ (P &lt; 0.01). Additionally, path analysis results revealed that after the study, the causal relationship between ‘Knowledge’ and ‘Attitude’ disappeared, and a new causal relationship appeared between ‘Patient counselling and management’ and ‘Attitude’.

Conclusions

Providing lifestyle guidance improved pharmacists’ confidence and attitude. Also, ‘Attitude’ tended to improve as the ‘Patient counselling and management’ score increased.

[Approach to Evidence-based Medicine Exercises Using Flipped Teaching: Introductory Education for Clinical Practice for 4th-Year Pharmacy Students]

　Osaka University of Pharmaceutical Sciences has included an evidence-based medicine (EBM) exercise in the introductory education for clinical practice for 4th-year pharmacy students since 2015. The purpose of this exercise is to learn the process of practice and basic concepts of EBM, especially to cultivate the practical ability to solve patients' problems and answer their questions. Additionally, in 2016, we have attempted flipped teaching. The students are instructed to review the basic knowledge necessary for active learning in this exercise by watching video teaching materials and to bring reports summarizing the contents on the flipped teaching days. The program includes short lectures [overview of EBM, document retrieval, randomized controlled trials (RCTs), and systematic review], exercises [patient, intervention, comparison, outcome (PICO) structuring, critical appraisal of papers in small groups with tutors], and presentations. The program includes: step 1, PICO structuring based on scenarios; step 2, critical appraisal of English-language papers on RCTs using evaluation worksheets; and step 3, reviewing the results of the PICO exercise with patients. The results of the review are shared among groups through general discussion. In this symposium, I discuss students' attitudes, the effectiveness of small group discussions using flipped teaching, and future challenges to be addressed in this program.

[Factors Related to the Awareness and Self-confidence of Pharmacists regarding "PRE-AVOID": Study Using VISTA Project Data]

　The objective of this survey is investigating pharmacists' recognition of and belief in the importance of doing PRE-AVOID using the drug profile book (DPB). The main survey items were: 1. Awareness and self-confidence concerning PRE-AVOID using DPB, 2.Status of educating patients of the merits of the DPB, 3. Status of educating patients of the utilities of the DPB, 4. Status of educating patients of the roles of the DPB, 5. Guidance provided on methods of DPB usage, and 6. Interactions with patients. A multiple regression analysis was performed using "Awareness and self-confidence concerning PRE-AVOID using DPB" as a dependent variable. A regression equation including three items ("Educating the roles", "Blood test", and "Not using multiple DPBs at same time") was derived for "Self-confidence in PRE-AVOID work" (R²=0.20). The item most affecting "Self-confidence in PRE-AVOID work" was "Educating the roles" (R=0.28). A regression equation with "Awareness of PRE-AVOID work" as a dependent variable was not derived. The results of the study suggest that "Educating the roles" or "Not using multiple DPBs at same time" for patients, and asking the results of "Blood test" in a medication consultation may increase pharmacists belief in doing PRE-AVOID.

Effects of lifestyle advice provided by pharmacists on blood pressure: The COMmunity Pharmacists ASSist for Blood Pressure (COMPASS-BP) randomized trial

The COMmunity Pharamcists ASSist for Blood Pressure (COMPASS-BP) study aimed to assess the effectiveness of lifestyle support programs administered in community pharmacies on hypertension control. This open-label, two-armed parallel group, cluster-randomized controlled trial included 73 pharmacies (clusters) in Japan randomized to a control or intervention group. Eligible hypertensive patients (n = 125), aged 20-75 years, received the intervention (n = 64) or the control treatment (n = 61), as dictated by their pharmacy randomization. Patients in the intervention group received brochures and healthy lifestyle advice from pharmacists using motivational interviewing methods during pharmacy visits over a 12-week period, with their usual pharmacy care. Conversely, the control group just received usual care. The main outcome measure was a change in morning systolic blood pressure (SBP) from baseline to week 12. The intervention group exhibited a decrease in morning SBP that was 6.0 mmHg greater than that of the control group (95% confidence interval [CI]: -11.0 to -0.9, p = 0.021). In a mixed-effect model for repeated measures analysis, the intergroup difference in morning SBP decrease was -4.5 mmHg (95% CI: -8.5 to -0.6, p = 0.024). Our findings indicate that implementation of a lifestyle advice program in pharmacies is feasible and may lead to reduced blood pressure.

How Patient-Pharmacist Communication Using the Drug Profile Book Relates to Patient's Behavior regarding Its Use

 This survey aimed to examine how patient-pharmacist communication using the drug profile book relates patient's behavior regarding its use. Among patients who visited one of the five pharmacies during the 4 months between July and October of 2013, 245 patients who had been prescribed antihypertensives were asked to complete a questionnaire. Items included patient attributes, whether the patient thought the drug profile book was useful to them ("sense of utility"), whether the patient has ever been questioned by a pharmacist while showing the drug profile book ("experience of being questioned by a pharmacist while showing the drug profile book"), and whether the patient has ever shown the drug profile book to the physician ("experience of showing the drug profile book to the physician"). In addition, pharmacists counted the frequency of patients bringing the drug profile book, and if so, the frequency of the sticker affix during the last 5 visits. 34.3% of responding patients answered that they had the "experience of being questioned while showing the drug profile book". Response rates of "frequency of bringing the drug profile book", "sense of utility", and "experience of showing the drug profile book to the physician" in the group with "experience of being questioned while showing the drug profile book" were significantly higher than those in the group without such experience. This survey indicated that experience of being questioned by a pharmacist while showing the drug profile book related patient's behavior regarding its use.

Identification and prevalence of adverse drug events caused by potentially inappropriate medication in homebound elderly patients: a retrospective study using a nationwide survey in Japan

OBJECTIVES

A nationwide large-scale survey was conducted to identify the prevalence and causal medications of adverse drug events (ADEs) that are caused by potentially inappropriate medications (PIMs) given to homebound elderly patients, factors associated with ADEs, and measures taken by pharmacists to manage ADEs and their effects on ADEs.

SETTINGS

A questionnaire was mailed to 3321 pharmacies nationwide. It asked about the details of PIMs and ADEs of up to 5 patients for whom home visits were provided by a pharmacist. Questionnaire forms were filled in by pharmacists who visited the patients.

DESIGN AND PARTICIPANTS

Between 23 January and 13 February 2013, comprehensive assessment forms were sent to 3321 pharmacies. Data collected from 1890 pharmacies including data of 4815 patients were analysed and 28 patients of unknown sex were excluded. Their average age was 82.7 years. PIMs were identified based on the 2003 Beers Criteria Japan.

RESULTS

There were 600 patients who did not provide valid answers regarding the medications. In the remaining 4243 patients, one or more medications that were considered to be PIMs had been prescribed to 48.4% of patients. PIM-induced ADEs were found in 8% of these patients by pharmacists during home visits. The top ADE-inducing medications were strong anticholinergic antihistamines, benzodiazepines, sulpiride and digoxin. The most common ADEs associated with benzodiazepines were frequent lightheadedness, somnolence and sleepiness, which increase the risk of falls and subsequent fractures in elderly patients. The following factors associated with ADEs were identified: sex, pharmacist awareness of prescription issues, frequency of visits and time spent at patients' homes, and the frequency of detailed checks for patient adverse reactions by pharmacists.

CONCLUSIONS

The PIM prevalence associated with home healthcare in Japan was relatively high, as reported in previous studies. The present study suggests that pharmacists could reduce the incidence of PIMs and consequent ADEs.

[Nationwide study on relations between workload and outcomes of home visiting service by community pharmacists]

A nationwide survey was conducted to verify relations between the workload of home-visiting service by community pharmacists and outcomes. Data were collected on 5447 patients from 1890 pharmacies. Most (61.9%) pharmacists visited patients' homes twice monthly, spending there a net average of 20.6 work minutes. At the time of the survey, 29.8% of the patients had improvement of adherence compared with at start of home visits; 65.5% had no change, and 1.4% had gotten worse. Similarly, 41.6% had decreased unused medications, 54.4% had no change, and 2.3% had increased. Home-visiting pharmacists found adverse drug events (ADEs) caused by drug administration in 14.4% of their patients. They dealt with 44.2% of these cases by discontinuing administration of the responsible drug, 24.5% by reducing the dosage, and 18.3% by changing drugs, with a total of 88.1% having been improved. Prescription changes intended to correct problems occurred in 37.1% of the patients. In patients whom the pharmacists visited more often, a higher percent had ADEs, had their prescription changed to correct problems, and had improved adherence and unused medications. The average actual work time was longer in patients whose outcomes improved than in those whose outcomes did not. A higher involvement in homecare by pharmacists was found to improve outcomes of drug treatment.

[Pilot study of dementia medication compliance conducted among pharmacists providing home visits which evaluates the degree of drug compliance, as defined by numerous attributes, between patients at home and patients in a medical facility]

A survey was conducted among pharmacists providing "home-visit guidance on drug management" to patients taking medication for dementia. Factors related to medication adherence among patients and pharmacists' acquisition of patient information were then verified. The survey items were: (1) patient attributes (degree of care received, bed-ridden, family composition, and living environment); (2) the person controlling medications; (3) drug storage method and location; (4) dispensing method; (5) patient management of visiting nurses; (6) patient management of visiting physician; (7) details of pharmacist's home-visit guidance; (8) medication adherence; (9) five items related to cognitive function (short-term memory, autonomous judgment, fluctuations in level of consciousness, excitation and loss of orientation, understanding); and (10) ten items related of ADL (mobility in bed, transferring, mobility within the home or outdoors, dressing upper/lower body, eating, toilet use, individual hygiene, bathing). The t test was used to verify the number of items of patient information concerning cognitive function and physical function that pharmacists could acquire at a visit. It was suggested that pharmacists were able to acquire more patient information (①cognitive function and ②ADL) when they visited patients cared for at home, compared to facility residents (①p=0.008, ② p=0.006). Thus, it was suggested that there is a latent risk concerning the pharmacist's ability to discover problems with administration of medications among facility residents. These findings demonstrate that it is essential for pharmacists to be more proactive about providing home-visit guidance.

[Research survey on the information gathering methods, attitudes, and requests from care managers about the pharmaceutical service by pharmacists in home care]

Care Managers (CMs) were surveyed to clarify the issues involving the promotion of cooperation between care managers and pharmacists in long-term-care and explore solutions. The length of work experience, occupational background, experience of pharmaceutical service; pharmacist visit patients' home for providing medicine and pharmaceutical care into a care plan, degree of understanding on pharmaceutical service, and awareness of work involved in pharmaceutical service were studied to see whether there made differences in the requests from CMs for information on pharmacists and for information gathering methods. The χ(2) test was used to this end. The opinions and requests described by the CMs were validated through text mining. More CMs tended to obtain information and knowledge through training sessions and professional magazines than those who did so through cooperation with pharmacists on a practical level. However, the survey strongly indicated that CMs with high level of understanding and awareness of pharmaceutical service wished to obtain information on pharmacists through cooperation with them on a practical level, and CMs with low level of understanding and awareness of pharmaceutical service wished to obtain such information through training sessions and professional magazines. Results of text mining showed that CMs wished pharmacists to strengthen the cooperation with physicians and provide information on pharmaceutical service. These findings have led to the conclusion that the issues surrounding the promotion of cooperation between CMs and pharmacists centered around "work cooperation on a practical level" and "provision of information to CMs about the roles of pharmacies and pharmacists and their work."

[Study on incorporation of "management and guidance of home-visiting by a pharmacist" into a care plan -observation based on a survey of care managers-]

A survey of care managers ("CMs") was conducted to identify top priority issues in promoting the management and guidance of home-visiting by a pharmacist ("management and guidance") by focusing on the experience in incorporating the management and guidance into a care plan and its relevant factors. Major survey items included (1) number of years working as a CM, (2) basic occupation, (3) experience in incorporating the management and guidance into care plans, (4) understanding the management and guidance content, and (5) an awareness of the need for pharmacists' involvement in care plans. A χ² test was conducted to determine if the experience in incorporating the management and guidance into care plans caused a difference in the distribution of the number of years as a CM, the basic occupation, understanding of the management and guidance content, and an awareness of the need for pharmacists' involvement in care plans. A regression analysis was conducted to determine the degree of association between the incorporation experience and each item. The numbers of years working as a CM, the basic occupation, understanding of the management and guidance content, and an awareness of the need for pharmacists' involvement in care plans, were found to be associated with the experience in incorporating the management and guidance into care plans. Understanding of the management and guidance content was most closely associated. To promote pharmacists' management and guidance for home-based care, CMs need to deepen their understanding of this service.

[Survey on the attitudes of pregnant and lactating women about the use of drugs]

The purposes of this survey were to determine the attitudes and the extent of anxiety of pregnant and lactating women about drug use, and to research priority issues for pharmacists' intervention. Postpartum lactating women and mothers with children in a Growing Care Unit (GCU) in hospitals certified as Baby Friendly Hospital (BFH) were surveyed. The questions included the images the respondents had of drugs before pregnancy, the extent of anxiety about drug use, and ways to relieve it. The highest number of respondents (49.1%) did not want to use drugs often before pregnancy, but said "physician-prescribed drugs are fine". 24.5% had no negative images, and they "take drugs when necessary without worrying". An additional 14.2% did not like drugs, and "avoid them whenever possible", followed by 9.4% who did not want to use drugs, but were willing to take health food and other over-the-counter items. The respondents reported that the extent of anxiety about drug use was 79.3% during pregnancy, which was higher than 71.7% during lactation. It was not influenced by birth experience and age. "The images of drugs before pregnancy" and "the extent to which the anxiety was relieved during pregnancy" were extracted as factors related to the extent of anxiety, verifying that negative images of drugs and low degrees of relief from anxiety raise the anxiety of pregnant women. The above shows that pharmacists need to understand the anxiety of pregnant and lactating women about drug use, and the images they had of drugs before pregnancy, thereby they are expected to work actively to determine and relieve the anxiety.

Effects of patient-pharmacist communication in the treatment of asthma

We studied the relationship between patient-pharmacist communication and asthma treatment, including patient understanding of drug therapy, ability to self-treat with inhaled drugs, and control over asthma. The study was among adult patients who had received inhaled steroidal or other drugs from community pharmacies in Hokkaido, Ibaragi, Tochigi, Kanagawa, and Osaka prefectures for at least one year. During the month of November 2007, pharmacists explained the study to patients and obtain consent before distributing questionnaires to be filled out and mailed back. Survey items covered the nature/extent of the pharmacist's explanation, the patient's degree of understanding, frequency of inhaled steroid use, frequency of asthma attacks, degree of improvement with inhaler use, skill in using inhaled drugs, and self-evaluation of communication with the pharmacist. Analysis was carried out using the 114 valid data sets obtained. The ratio of men to women was 4: 6, and the average age was 61.8 years. Compared with patients citing communication problems with pharmacists, those who had good communication received significantly higher scores in terms of understanding the purpose of inhalers, drug interactions, and side effects, and coping with attacks, as well as in indices of skill in using inhaled drugs. The degree of improvement in asthma attacks was also significantly higher among patients with self-evaluation of good communication with pharmacists. We suggest that communication between patient and pharmacist is associated with understanding of pharmacotherapy, as well as their ability to use inhaled medications and gaining good control over their asthma.

Alpha-1-antitrypsin deficiency (Siiyama) as indication for lung transplantation: proper timing for surgical intervention

The authors report a new familial case of alpha-1- antitrypsin (AAT) deficiency with severe pulmonary emphysema and hemoptysis. A severely reduced serum AAT level of the proband, a 56-year-old farmer's wife and her sister were observed. Mutation analysis of the AAT gene was performed using allele-specific polymerase chain reaction (PCR) analysis followed by direct sequencing. The proband and her younger sister proved to be homozygous for PISiiyama. Although home oxygen therapy was induced in addition to previous medications including bronchodilators and cardiovascular conditioning, the proband's rate of decline of forced expiratory volume at one second (FEV1) was progressing. Lung transplantation was therefore advisable for the patient. Clinical analysis on Japanese cases reported in the literature shows that the rate of decline of FEV1 is one of the most convenient prognostic factors to find proper timing for surgical intervention. Lung transplantation is one of the best reliable current therapies to improve quality of life of severely impaired patients.

Eye-concentrated distribution of dexamethasone carried by sugar-chain modified liposome in experimental autoimmune uveoretinitis mice

Corticosteroid is generally accepted as a standard therapeutic agent for active inflammatory (and) autoimmune eye diseases. In an attempt to develop a system to deliver corticosteroid most efficiently to the target eye, a sialyl-Lewis X (sLe(x))-conjugated liposome was adopted as a candidate for a carrier of dexamethasone (Dexa) and tissue distribution of intravenous Dexa with the modified liposome as well as Dexa alone as control was studied in normal and experimental autoimmune uveoretinitis (EAU) mice. Intravenous Dexa (1 mg) was widely distributed in all the tissues (eye, brain, heart, lung, liver, kidney, spleen and intestine) examined in similar manner in both mice and Dexa concentration was lowest in the eye except the brain. The tissue concentrations of Dexa in EAU group were all significantly lower than those in the corresponding tissues in normal group. Intravenous Dexa (2 microg) in the modified liposome was almost concentrated to the eye in EAU mice, reaching 13.84 ng/mg tissue in contrast to 2.34 ng/mg tissue in Dexa (1 mg) alone administered EAU mice. In normal mice, Dexa was undetectable in any tissues examined and thus the effect of the modified liposome was not observed. The result supported the potentiality of sLe(x)-conjugated liposome for target-delivering of corticosteroid to inflamed eye.

[Investigation on safety climate for preventing dispensing errors in community pharmacies]

We investigated consciousness of the prevention of dispensing errors with the pharmacists and clerical staffs which work in community pharmacies and analyzed the structure of those subconscious to examine preventive measures of dispensing errors. Questionnaire survey was performed for all pharmacists and clerical staffs working in community pharmacies where each is affiliated with four pharmacy groups. The questionnaire consisted of 38 questions about "atmospheres for the prevention of dispensing errors" in the pharmacy along their attributions. And data were analyzed by occupation to confirm the difference. As a result of factor analysis, five factors such as "the posture of the boss", "information exchange", "the order of the pharmacy" were extracted from the pharmacists. Moreover, in the case of the clerical staffs, five similar factors have been extracted besides "a sense of responsibility to duties" replaced "the order of the pharmacy". As a result of structural equation modeling, the pass model with high goodness of fit to which "measures for dispensing error prevention" and "consciousness to the dispensing error of a pharmacy" were assumed to be a subordinate concept respectively by each occupational category. It became clear that a suggestion of the concrete preventive measures drafting was provided even from the investigation of the consciousness level.

[Basic study to establish medication safety culture with patient-commitment style in community pharmacy: An examination from meeting reports]

Our group conducted a Medication Safety Culture Building Drive, enlisting the cooperation of pharmacy patients to clarify obstacles and verify the effect of the measures implemented. Pharmacists at 38 community pharmacies instituted a 3-month trial period of rigorous prescription confirmation by checking filled prescriptions against the accompanying drug information (DI) in the presence of patients at pharmacy counters, whenever prescription drugs were dispensed. During the first month, 29 pharmacies reported carrying out the program with the rate of patient coverage was over 50%; while 8 others reported that rate of patient coverage was less than 50%. Factors standing in the way of checking filled prescriptions with the patients could be characterized as "physical conditions," "prescription content," or "patient attributes." The measures devised to counter these obstacles all fell within the categories of "education of patients and pharmacists," "advance arrangements made in preparation for checking," "methods of checking and nature of items checked," "checking procedure," and "DI literature." After three month, 34 pharmacies reported that the effort had been effective. During the three months, the average implementation rate (patient coverage rate) was improved from 92.5% in April to 96.5% in June (p<0.001). The specific qualitative effects listed below were among those mentioned in reports compiled from meetings. 1) Improvement of patients' and pharmacists' awareness regarding dispensing error prevention, 2) Increase in patients' interest in, and understanding of, their own prescription medications, 3) Increase in patients' understanding about the efforts and in number of patients cooperating with the effort.

Effects of Hachimi-jio-gan (Ba-Wei-Di-Huang-Wan) on Intestinal Function in Streptozotocin-induced Diabetic Rats

We examined the effects of Hachimi-jio-gan (HJ) on the small intestinal function in streptozotocin (STZ)-induced diabetic rats. The rats had free access to pellets containing 1% HJ extract powder for 4 weeks after STZ administration. The intestinal disaccharidase (sucrase and maltase) activity was elevated in STZ-treated rats compared with control rats, whereas it was significantly reduced by HJ administration. This suggested that HJ suppresses or delays monosaccharide production in the small intestinal epithelium. In addition, the intestinal mucosal weights and DNA contents that were significantly increased in the STZ-treated rats were restrained to the control level by HJ treatment. Simultaneously, we examined the changes in the plasma levels of glucagon-like peptide 2 (GLP-2), which is a trophic factor specific for the intestine. The plasma GLP-2 levels significantly increased in the STZ-treated rats, whereas HJ decreased the plasma GLP-2 levels. Thus intestinal mucosal weights and DNA contents correlated with plasma GLP-2 levels in diabetes-associated bowel growth. These results suggest that HJ may normalize or suppress the small intestinal disaccharidase activity and the epithelial cell proliferation mediated by GLP-2 in the animal model rats.

Contributions of Pharmacists through the Promotion of Proper Drug Use

The contents of pharmacist interventions, which were carried out by the ward pharmacists in their routine pharmacy service activities, were sorted and analyzed to evaluate the contributions of pharmacists. In the ward where pharmacists were stationed, there were a total of 196 cases of pharmacist intervention. The prescription was changed in 170 cases, giving a rate of prescription change of 86.7%. The breakdown of the pharmacist intervention was as follows: "efficacy/safety", 106 cases, followed by "dosage regimen" (48 cases) and "compliance" (10 cases). Cost savings achieved during the investigation period were calculated to be 440,639 yen, and cost avoidance was valued at 1,941,847-3,883,695 yen using the Diagnosis Procedure Combination (DPC). The results of the present investigation showed that pharmacists contribute to through not only their pharmacy services, but also through the promotion of proper drug use and risk management, thereby contributing to hospital management through cost savings and avoidance.

Availability of Drug Information on Bioequivalence of Generic Products -Findings of Graduate Interns at a University Pharmacy-

Access to drug information (DI) needed to evaluate generic product bioequivalence was studied to identify problems with the current status of DI availability and encourage proper use of DI. Ten items were chosen from among the stock of branded products at the University Pharmacy, and five corresponding generics were selected for each item. Conditions of access to information on pharmacokinetic tests and dissolution tests were rated and the assigned ratings compared. In the case of pharmacokinetic parameters obtainable from makers of generic drugs, we also performed Welch's t-test to compare the difference between values reported for branded and generic products. From the standpoint of individual tests, the pharmacokinetic tests yielded higher scores on the whole than did the dissolution tests, and low scores were obtained for the half-life of blood drug concentration (T1/2). We observed a tendency for the adequacy of information to depend more upon the drug item itself than upon the nature of the test. The percentage of tests allowing for comparison with branded products varied from 0%-75% (average 49%). Parameter by parameter, the range of variation was from 35% of Tmax to 63% of Cmax. Factors precluding comparison included insufficient data on branded products, mismatch in assayed chemical species between branded and generic, mismatch between final sampling time in AUC(t) measurement, dosage inconsistency, and insufficient data on generic products. DI should be provided in a manner that facilitates comparison of information supplied by generic drug makers with data released by makers of branded products.

Down-regulation of an inhibitor of cell growth, transmembrane protein 34 (TMEM34), in anaplastic thyroid cancer

PURPOSE

Ansaplastic thyroid cancer (ATC) is one of the most lethal malignancies, but the carcinogenic mechanism of ATC has not been clarified. Recently, we performed a cDNA microarray analysis and identified transmembrane protein 34 (TMEM34) that down-regulated in anaplastic thyroid cancer cell lines (ACL)s as compared to normal thyroid tissues.

METHODS

To investigate the role of TMEM34 in ATC carcinogenesis, we examined expression levels of TMEM34 in ACLs as well as differentiated thyroid cancers (DTC)s and normal human tissues. To explore the effect of TMEM34 in ATC development, cell-growth assays with KTA2 cells were performed.

RESULTS

Expression of TMEM34 was down-regulated in all 11 ACLs, as compared to either normal thyroid tissues or cell lines derived from papillary or follicular thyroid cancers. TMEM34 was expressed ubiquitously in normal human tissues tested. Transfection of TMEM34 into KTA2 cells led to inhibition of cell growth.

CONCLUSIONS

Our findings suggest that TMEM34 might be a tumor suppressor gene, associated with the development of ATC from DTC.

A novel amplification target, DUSP26, promotes anaplastic thyroid cancer cell growth by inhibiting p38 MAPK activity

Anaplastic thyroid cancer (ATC) is one of the most lethal of all human tumors, but cytogenetic information concerning ATC is extremely limited. Using our in-house array-based comparative genomic hybridization and 14 ATC cell lines with further fluorescence in situ hybridization analysis, we demonstrated amplification of the DUSP26 gene, known by another report as MAP kinase phosphatase-8. DUSP26 was overexpressed in ATC cell lines and primary ATC tumor samples. When overexpressed, either exogenously or endogenously, DUSP26 promoted growth of the ATC cells. DUSP26 encodes a protein containing a dual-specificity phosphatase domain that can dephosphorylate itself. DUSP26 effectively dephosphorylates p38 and has a little effect on extracellular signal-regulated kinase in ATC cells. DUSP26 protein formed a physical complex with p38, and promoted survival of ATC cells by inhibiting p38-mediated apoptosis. Our findings suggest that DUSP26 may act as an oncogene in ATC, and might be a useful diagnostic marker and therapeutic target of this disease.

Current treatment options and biology of peritoneal mesothelioma: meeting summary of the first NIH peritoneal mesothelioma conference

Peritoneal mesothelioma is a rare cancer of the peritoneum with about 250 new cases diagnosed each year in the United States. It is the second most common site for mesothelioma development and accounts for 10-20% of all mesotheliomas diagnosed in the United States. A meeting sponsored by the NIH Office of Rare Diseases was held in Bethesda, Maryland on September 13 and 14, 2004. The objective of this meeting was to review the epidemiology, biology and current surgical and medical management of peritoneal mesothelioma. In addition, the meeting also discussed clinical and pre-clinical evaluation of novel treatments for mesothelioma as well as ongoing laboratory research to better understand this disease. This report summarizes the proceedings of the meeting as well as directions for future clinical and basic research.

Functional categories of TP53 mutation in colorectal cancer: results of an International Collaborative Study

BACKGROUND

Loss of TP53 function through gene mutation is a critical event in the development and progression of many tumour types including colorectal cancer (CRC). In vitro studies have found considerable heterogeneity amongst different TP53 mutants in terms of their transactivating abilities. The aim of this work was to evaluate whether TP53 mutations classified as functionally inactive (< or=20% of wildtype transactivation ability) had different prognostic and predictive values in CRC compared with mutations that retained significant activity.

MATERIALS AND METHODS

TP53 mutations within a large, international database of CRC (n = 3583) were classified according to functional status for transactivation.

RESULTS

Inactive TP53 mutations were found in 29% of all CRCs and were more frequent in rectal (32%) than proximal colon (22%) tumours (P < 0.001). Higher frequencies of inactive TP53 mutations were also seen in advanced stage tumours (P = 0.0003) and in tumours with the poor prognostic features of vascular (P = 0.006) and lymphatic invasion (P = 0.002). Inactive TP53 mutations were associated with significantly worse outcome only in patients with Dukes' stage D tumours (RR = 1.71, 95%CI 1.25-2.33, P < 0.001). Patients with Dukes' C stage tumours appeared to gain a survival benefit from 5-fluorouracil-based chemotherapy regardless of TP53 functional status for transactivation ability.

CONCLUSIONS

Mutations that inactivate the transactivational ability of TP53 are more frequent in advanced CRC and are associated with worse prognosis in this stage of disease.

Structural Features of Pharmacy Function-The Analysis Using Structural Equation Modeling-

In order to examine the structural features of community pharmacy function and to clarify areas meriting priority in efforts to expand pharmacy functions in the home care field, a questionnaire survey was conducted. Using the distribution of responses regarding the actual conditions entailed in the 16 categories of pharmacy services, factor analysis was carried out. Structural equation modeling was performed and the fitness of the path model constructed to study the interrelatedness of the individual factors extracted by factor analysis was considered. Four factors comprised pharmacy services "dispensing", "supply of goods", "offering home care", and "cooperation in community health and medical programs". The interrelatedness of four pharmacy functions by the result of structural equation modeling indicated the following insights. 1) By strengthening "cooperation in community health and medical programs", it is possible to directly improve the functions of "dispensing", and "offering home care". An improvement in "collecting and utilizing patient information", "providing appropriate instruction", "providing introductions to medical institutions and physicians", and "supplying over-the-counter drugs" can be expected as a result of direct benefits accrued by "cooperation in community health and medical programs". 2) By strengthening "offering home care", it is possible to directly improve "supply of goods". An improvement in "stocking long-term care goods and sanitary goods" can be expected as a result of direct benefits accrued by "offering home care". In conclusion, this study indicated that the areas meriting priority in the expansion and upgrading of pharmacy functions is stronger "cooperation in community health and medical programs".

Pharmaceutical Cost Comparison Analysis of Antimicrobial Use for Surgical Prophylaxis on Gastrectomy Patients in a Tertiary Care Hospital

The present study investigated the clinical effects and therapeutic cost of cefazolin (CEZ) and ampicillin/sulbactam (SBT/ABPC) compared to analyze cost-effectiveness for surgical prophylaxis in gastric cancer patients. 157 inpatients who underwent surgery for gastric cancer were investigated. There was no difference between the two groups with regard to sex, age, incidence of complication, stage of cancer, operative time and blood loss, length of hospitalization, the appearance of systematic inflammatory responses syndrome and the prophylactic effect of infection. Meanwhile, decision analysis indicated that the anticipated therapeutic cost per patient in CEZ group was less than that of SBT/ABPC group (USD 142.72 and USD 187.17, respectively). In this case, CEZ use was more cost-effective, insofar as only drug cost was considered.

Activity and stability of glucose oxidase in molecular films assembled alternately with polyions

Anionic glucose oxidase (GOD) was assembled alternately with polycations, namely, poly(ethylenimine) (PEI) and poly(dimethyldiallyl-ammonium chloride) (PDDA), in the preparation of molecular films. Enzymatic activity of the films was investigated by sequential redox reaction with glucose, peroxidase (POD) and DA67 dye. The apparent activity was not influenced by substrate diffusion at up to 5 microg of immobilized GOD (at the area of 5 x 5 mm(2) x 2 faces). This is ascribed to the less dense packing of the alternate molecular film compared with Langmuir-Blodgett (LB) films. Immobilized GOD could be released into solution, and its activity was about 80% of native GOD, indicating that the immobilization did not cause significant denaturation. The enzyme activity of the GOD film was maintained for 14 weeks when stored in buffer and in air at 4 degrees C. Activity measurement after incubation at elevated temperatures showed that significant deactivation was not observed up to 50 degrees C. This shows that GOD in the film has higher thermostability than native GOD. The pH profile of the GOD activity in the film became broad and shifted towards higher pH than that of native GOD. The GOD film was also prepared by the premixing method, in which a GOD-polyion complex was assembled alternately with another oppositely-charged polyion. The enzyme activity of the alternate film obtained by premixing was much higher (maximal enhancement, 67-fold) than that of the conventionally assembled films. Better dispersion of GOD in the premixed film appears to enhance the enzyme activity.

Decreased expression of haemoglobin beta (HBB) gene in anaplastic thyroid cancer and recovery of its expression inhibits cell growth

Anaplastic thyroid cancer (ATC) is one of the most fulminant and foetal diseases in human malignancies. However, the genetic alterations and carcinogenic mechanisms of ATC are still unclear. Recently, we investigated the gene expression profile of 11 anaplastic thyroid cancer cell lines (ACL) and significant decreased expression of haemoglobin beta (HBB) gene in ACL. Haemoglobin beta is located at 11p15.5, where loss of heterozygosity (LOH) was reported in various kinds of cancers, including ATC, and it has been suggested that novel tumour suppressor genes might exist in this region. In order to clarify the meaning of decreased expression of HBB in ATC, the expression status of HBB was investigated with ACL, ATC, papillary thyroid cancer (PTC) and normal human tissues. Haemoglobin beta showed significant decreased expression in ACLs and ATCs; however, in PTC, HBB expressed equal to the normal thyroid gland. In addition, HBB expressed in normal human tissues ubiquitously. To validate the tumour-suppressor function of HBB, cell growth assay was performed. Forced expression of HBB in KTA2 cell, which is a kind of ACL, significantly suppressed KTA2 growth. The mechanism of downregulation of HBB in ATC is still unclear; however, our results suggested the possibility of HBB as a novel tumour-suppressor gene.

[Pulmonary large cell carcinoma contiguous to bullae with massive bullous hematoma and hemoptysis; with special reference to 20 cases of Japanese reports]

A 50-year-old man with continuous hemosputa and large hematoma of left upper lobe contiguous to bilateral emphysematous bullous disease was admitted for surgery to stop hemorrhage and to resect left lung hematoma and multiple bullae. Bullectomy and neodymium yttrium aluminum garnet (Nd-YAG) laser irradiation to bullae of left upper lobe performed successfully with maximum preserved pulmonary function of it. Pathological examination, however, revealed anaplastic carcinoma inside bulla of S(1+2)c with minimal invasion into adhered parietal pleura (p 3). Left upper lobectomy was carried out with complete mediastinal lymph node dissection (ND 2 b). The final pathological diagnosis was large cell carcinoma of left S(1+2)c with the staging pT3N0M0 and stage II. The patient lives actively in daily life more than 7 years without any recurrence. Clinical analysis of Japanese 20 cases of lung carcinoma with initial signs of hemosputa and/or hemoptysis contiguous to emphysematous bullae elucidate following important facts. Hemosputa and hemoptysis play important role for early finding and diagnosis of lung cancer contiguous to bullous disease, especially in patients of early clinical stage with or without computed tomography (CT) exams and promise to better surgical prognosis and survivals as compared with non hemosputa ones.

Identification of RAI3 as a therapeutic target for breast cancer

We have been investigating gene-expression profiles in estrogen receptor (ER)-negative breast cancers to identify molecules involved in breast carcinogenesis and to select genes or gene products that might be useful as diagnostic markers or targets for new molecular therapies. Here we report evidence that the gene encoding retinoic acid-induced protein 3 (RAI3) is a potential molecular target for treatment of breast cancers. Using quantitative reverse transcription-PCR (RT-PCR), we documented increased expression of RAI3 in 19 of 25 primary breast cancers and in 6 of 11 breast-cancer cell lines examined, by comparison with normal mammary-gland tissue. Treatment of human embryonic kidney (HEK293) cells with siRNA against RAI3 suppressed expression of RAI3 and also suppressed cell growth. Transfection of siRNA into breast-cancer cell lines MCF7 and T47D also suppressed RAI3 mRNA and growth of the cancer cells. Because our data imply that up-regulation of RAI3 function is a frequent feature of breast carcinogenesis, we suggest that selective suppression of signal from RAI3 might hold promise for development of a new strategy for treating breast cancers.