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PubMed1997

Patterns of health risk behaviors for chronic disease: a comparison between adolescent and adult American Indians living on or near reservations in Montana.

PURPOSE: To compare the chronic disease health risk behavior patterns of adolescents and adults among American Indians living on or near reservations in Montana. METHODS: We analyzed data from the 1993 Youth Risk Behavior Survey of American Indians in Grades 9-12 living on or near Montana reservations. Risk factors included tobacco use, low physical activity, attempted weight loss, and low consumption of fruits, vegetables, and green salad. Similar data were analyzed from a 1994 Behavioral Risk Factor Survey of American Indian adults living on or near reservations in Montana. RESULTS: The prevalence of most adolescent health risk behaviors was high, especially cigarette smoking (45% for males, 57% for females), smokeless tobacco use (44% for males, 30% for females), and infrequent consumption of salad or vegetables (59-76%). With the exception of daily cigarette smoking and inadequate fruit consumption among adolescents of both genders and physical inactivity among adolescent males, the prevalence of chronic disease health risk behaviors among adolescents was similar to or higher than the prevalence of the same risk behaviors among adults. CONCLUSIONS: Many health risk behaviors for chronic diseases are common by the time this group of American Indians in Montana has reached adolescence. Possible reasons may include modeling of familial behaviors, peer pressure, advertising, or age cohort effects. If these risk behavior patterns continue into adulthood, morbidity and mortality from chronic diseases are likely to remain high. Substantial efforts are needed to prevent or reduce health risk behaviors among adolescents and adults in this population.

Adolescent↗
PubMed2003

Assessing population structure and gene flow in Montana wolverines (Gulo gulo) using assignment-based approaches.

In North America, wolverines once occupied a continuous range from Alaska southward to New Mexico. In the lower 48 states, small remnant populations remain only in the northwestern United States. Among these remnant populations, the Montana population has the highest probability of long-term persistence given its size and proximity to healthy populations in Canada. In this study, we evaluate population genetic structure and gene flow among Montana wolverines using 10 polymorphic microsatellite loci. Bayesian and frequency-based assignment tests revealed significant population substructure and provide support for at least three subpopulations in Montana. FST values between subpopulations ranged from 0.08 to 0.10 and provide evidence for male-biased dispersal. The high degree of population substructure and low levels of gene flow contrast results from wolverine population genetic studies in less fragmented landscapes of Alaska and Canada. This study provides additional support for the hypothesis that large carnivore populations of Montana are becoming increasingly fragmented due to human development and disturbance.

Animals↗
PubMedDate not supplied

Focus on: Northern Montana Hospital's Biomedical Services.

This paper describes the Biomedical Services of Northern Montana Hospital, a separate corporation under the parent corporation of Northern Montana Health Care Inc. Located in Havre, Montana, a rural area of north central Montana, the hospital is a 120-bed, non-profit organization. The two BMETs work as part of the Engineering Department and service almost every piece of equipment in the building (approximately 1100 items), as well as a telephone system for another facility. This paper shows that a non-urban hospital, located far from any service company outlet, can be self-supporting as far as equipment service and maintenance are concerned.

Hospital Bed Capacity, 100 to 299↗
PubMed2026

Integrated methylome and transcriptome analysis provides insight into DNA methylation-mediated networks in sexual dimorphism of Vernicia montana.

BACKGROUND: Sexual dimorphism is fundamental to reproduction in dioecious plants and is regulated by both genetic and epigenetic mechanisms. DNA methylation is a central epigenetic mark known to influence phenotypic variation in plants. However, its specific role in shaping sexual dimorphism in dioecious trees remains poorly understood. To address this question, we performed integrated genome-wide DNA methylome and transcriptome analyses of four tissue types in the dioecious tung tree (Vernicia montana), including male and female flower buds and their corresponding leaves. RESULTS: Our analysis revealed distinct DNA methylation patterns between male and female tissues. Notably, the coordination between DNA methylation reprogramming and transcriptional regulation appeared to be more strongly associated with reproductive development than with vegetative growth in V. montana. We identified a set of sex-biased genes that may reflect different reproductive strategies between the sexes. Further analysis identified several key transcription factors (TFs) potentially associated with promoter differentially methylated regions (DMRs), including flowering-time regulators (e.g., FRS5, REM16, and VRN1) and TFs involved in hormone signaling pathways such as jasmonic acid, auxin, and salicylic acid signaling. Cis-regulatory element analysis showed that some promoter DMRs overlapped with hormone response elements related to abscisic acid, auxin, and gibberellin. Co-expression network analysis further revealed potential regulatory correlations among promoter DMR-mediated TFs, hormone-responsive pathways, and key floral development regulators. CONCLUSIONS: Collectively, our results suggest that interactions among DNA methylation, transcriptional regulation, and hormone-responsive pathways may contribute to the establishment of sexual dimorphism in V. montana. This study provides the first integrated view of these regulatory layers in V. montana and supports a species-specific regulatory framework for understanding the epigenetic basis of sexual dimorphism in this economically important dioecious tree. The proposed framework is based on multi-omics analyses and warrants further validation through targeted functional studies.

DNA Methylation↗
PubMed1992

Comparison of Montana and Alaska isolates of Echinococcus multilocularis in gerbils with observations on the cyst growth, hook characteristics, and host response.

To assess its biological distinctness, an isolate of Echinococcus multilocularis from Montana was compared with an isolate from Alaska in gerbils (Meriones unguiculatus) by means of intraperitoneal inoculations with protoscoleces. The cysts formed by the Montana isolate were entire, hyaline, and translucent, whereas those produced by the Alaska isolate were granular, yellowish, and opaque. Vesicles of the Montana isolate were larger, produced protoscoleces more slowly but in greater numbers, and required a longer period to develop surfacial germ cell protrusions, which were of smaller size. Also delayed was invasion of the laminate layer by granulocytes and macrophages, and a longer time was required for the appearance of pulmonary metastases. The 2 isolates differed also in characteristics of rostellar hooks, those from the Montana isolate being fewer and larger, often with accessory hooks.

Alaska↗
PubMedDate not supplied

Effect of homeopathic Arnica montana on bruising in face-lifts: results of a randomized, double-blind, placebo-controlled clinical trial.

OBJECTIVES: To design a model for performing reproducible, objective analyses of skin color changes and to apply this model to evaluate the efficacy of homeopathic Arnica montana as an antiecchymotic agent when taken perioperatively. METHODS: Twenty-nine patients undergoing rhytidectomy at a tertiary care center were treated perioperatively with either homeopathic A. montana or placebo in a double-blind fashion. Postoperative photographs were analyzed using a novel computer model for color changes, and subjective assessments of postoperative ecchymosis were obtained. RESULTS: No subjective differences were noted between the treatment group and the control group, either by the patients or by the professional staff. No objective difference in the degree of color change was found. Patients receiving homeopathic A. montana were found to have a smaller area of ecchymosis on postoperative days 1, 5, 7, and 10. These differences were statistically significant (P<.05) only on postoperative days 1 (P<.005) and 7 (P<.001). CONCLUSIONS: This computer model provides an efficient, objective, and reproducible means with which to assess perioperative color changes, both in terms of area and degree. Patients taking perioperative homeopathic A. montana exhibited less ecchymosis, and that difference was statistically significant (P<.05) on 2 of the 4 postoperative data points evaluated.

Arnica↗
PubMed2005

The effect of the homeopathic remedies Arnica montana and Bellis perennis on mild postpartum bleeding--a randomized, double-blind, placebo-controlled study--preliminary results.

OBJECTIVE: To evaluate the effect of Arnica Montana and Bellis perennis on postpartum blood loss. DESIGN: Double blind, placebo-controlled, randomized, clinical trial. SETTING: Department of Gynecology, Shaare Zedek Medical Center, Jerusalem. INTERVENTIONS: Forty parturients were randomized to one of three groups: Arnica montana C6 and Bellis perennis C6 (n=14), Arnica montana C30 and Bellis perennis C30 (n=14), or double placebo (n=12). After 48 h the Arnica/placebo was halted, and patients continued the Bellis/placebo until cessation of lochia. MAIN OUTCOME MEASURES: Hemoglobin levels (Hb) at 48 and 72 h postpartum. RESULTS: At 72 h postpartum, mean Hb levels remained similar after treatment with homeopathic remedies (12.7 versus 12.4) as compared to a significant decrease in Hb levels in the placebo group (12.7 versus 11.6; p<0.05), in spite of less favorable initial characteristics of the treatment group. The mean difference in Hb levels at 72 h postpartum was -0.29 (95% CI -1.09; 0.52) in the treatment group and -1.18 (95% CI -1.82; -0.54) in the placebo group (p<0.05). CONCLUSION: Treatment with homeopathic Arnica montana and Bellis perennis may reduce postpartum blood loss, as compared with placebo.

Adult↗
PubMed2004

Anti-inflammatory activity of Arnica montana 6cH: preclinical study in animals.

The anti-inflammatory effect of Arnica montana 6cH was evaluated using acute and chronic inflammation models. In the acute, model, carrageenin-induced rat paw oedema, the group treated with Arnica montana 6cH showed 30% inhibition compared to control (P < 0.05). Treatment with Arnica 6cH, 30 min prior to carrageenin, did not produce any inhibition of the inflammatory process. In the chronic model, Nystatin-induced oedema, the group treated 3 days previously with Arnica montana 6cH had reduced inflammation 6 h after the inflammatory agent was applied (P < 0.05). When treatment was given 6 h after Nystatin treatment, there was no significant inhibitory effect. In a model based on histamine-induced increase of vascular permeability, pretreatment with Arnica montana 6cH blocked the action of histamine in increasing vascular permeability.

Acute Disease↗
PubMed2000

Cancer stage at diagnosis, treatment, and survival among American Indians and non-American Indians in Montana.

BACKGROUND: The intent of the current study was to ascertain whether differences in cancer survival between Montana non-American Indians (non-AI) and Montana American Indians (AI) were related to differences in stage of disease at diagnosis or in the type of treatment received. METHODS: A case-control design was utilized using data from the Montana Central Tumor Registry and the Indian Health Service medical records. AIs diagnosed between January 1, 1984 and December 31, 1993 were the cases in the study, and non-AIs diagnosed in the same period were the controls. Chi-square tests and life table techniques were used to analyze the data. RESULTS: Five hundred twenty-two cases were matched with controls. The 5-year cancer survival rate for AIs was 36% and was 47% among non-AIs. The stage at the time of diagnosis was local in 34% of AIS and 36% of non-AIs. The stage was regional in 30% of AIs and 26% of non-AIs. Distant disease at the time of diagnosis was present in 25% of AIs and 24% of non-AIs, whereas an unknown extent of disease was present in 11% of AIs and 14% of non-AIs. AIs underwent surgery less frequently than non-AIs (79% vs. 86%), but this did not appear to contribute to the survival differences observed. CONCLUSIONS: The survival differences observed in the current study cannot be explained easily by differences in the cancer stage at diagnosis or the type of treatment received.

Adult↗
PubMed2002

Estimating recreational trout fishing damages in Montana's Clark Fork River basin: summary of a natural resource damage assessment.

This paper summarizes a natural resource damage assessment for the State of Montana. Mining wastes have caused significant reductions in trout stocks in a 145-mile stretch of Montana's Silver Bow Creek and Clark Fork River. To estimate economic damages from decreases in catch rates, we develop and estimate an individual-based utility-theoretic model of where and how often an angler will fish as a function of travel costs, catch rates, and other influential characteristics of the site and individuals. The model includes resident and nonresident anglers who currently fish in Montana, and allows them to have different preferences. Demand parameters and expected catch rates are simultaneously estimated. The value of time is endogenously estimated as a proportion of the wage rate. Catch rates are linked to trout stocks through a stock-catch function. Collection of the angler data involved a three-step process: anglers were intercepted at 26 study sites, a subsample of anglers was selected to reflect the population trip-taking proportions to the study sites, and these anglers received follow-up surveys through the fishing season. Avidity weights are used to correct for the higher level of avidity inherent in intercept samples.

Animals↗
PubMed1996

Distribution of potential intermediate hosts for Fasciola hepatica and Fascioloides magna in Montana, USA.

A collection of lymnaeid snails in Montana was made over a 3 year period, in conjunction with a state-wide survey of the distribution of liver flukes in Montana. Collection areas were selected based on reports of infected cattle, sheep or wildlife, and with the intent of covering all geographic regions of the state. Snails were found at all 97 of the locations chosen for collections, with lymnaeids collected at 71 of the locations. The 97 sites were located in 28 of Montana's 56 counties. Nine lymnaeid species were collected, five of which have been reported either as natural or experimental intermediate hosts for Fasciola hepatica or Fascioloides magna. The two snail species most widely distributed over the areas enzootic for the flukes were Lymnaea modicella and Lymanaea caperata.

Animals↗
PubMed2005

Increasing prevalence of cardiovascular risk factors among American Indians in Montana.

BACKGROUND: Cardiovascular disease (CVD) is the leading cause of death among American Indians. The objective of this study was to assess trends in CVD and CVD risk factors among American Indians in Montana. METHODS: In 1999 and 2003, 1000 American Indian adults aged > or =18 years living on or near the seven reservations in Montana were interviewed each year using an adapted Behavior Risk Factor Surveillance System survey. RESULTS: During the 5-year period from 1999 to 2003, the prevalence of CVD risk factors increased significantly: diabetes (12% to 16%), high blood pressure (26% to 34%), high cholesterol (23% to 30%), and obesity (34% to 39%). The percentage reporting current smoking was stable and remained high (38% to 36%). After adjusting for age and gender, the increases in high blood pressure, high cholesterol, and obesity remained significant. The percentage reporting two or more CVD risk factors increased significantly overall, among men and women, and among older and younger respondents during the 5-year time period. CONCLUSIONS: The prevalence of CVD risk factors among American Indian adults in Montana is high, and for many of the risk factors, has increased significantly over a 5-year period.

Adult↗
PubMed2006

Cancer incidence in Montana: rates for American Indians exceed those for whites.

OBJECTIVES: Previous studies suggested that the cancer incidence rates in American Indians and Alaska Natives were lower than in other groups. The objective of this study was to compare the cancer incidence rates in American Indians and whites in Montana. METHODS: Age-adjusted 6-year cancer incidence rates were calculated for American-Indian and white men and women in Montana to allow comparison of rates in 1991-1996 to those in 1997-2002. RESULTS: The age-adjusted rates for American-Indian men were significantly higher than those for white men for all cancer sites (755+/-74 [95% confidence interval] per 100,000 vs 544+/-9 per 100,000), lung cancer (167+/-35 per 100,000 vs 83+/-4 per 100,000), and colorectal cancer (115+/-29 per 100,000 vs 61+/-4 per 100,000) from 1997 to 2002. The adjusted rates for American-Indian women were significantly higher than those for white women for all cancer sites (526+/-47 per 100,000 vs 412+/-8 per 100,000) and lung cancer (120+/-24 per 100,000 vs 56+/-3 per 100,000) during this same time period. There was a significant increase in the age-adjusted rates for all cancer sites among white men and women but not for American-Indian men or women between 1991-1996 and 1997-2002. CONCLUSIONS: There is a significant disparity in the cancer incidence rates between American Indians and whites in Montana. Regional or state-level surveillance data will be needed to describe the changing patterns of cancer incidence in many native communities in the United States.

Adult↗
PubMed2001

Cardiovascular disease and risk factors in Montana American Indians and non-Indians.

BACKGROUND: Cardiovascular disease (CVD) is the leading cause of death for both American Indian and non-Indian adults. Few published studies have compared the prevalence of CVD and related risk factors in Indians to that in non-Indians in the same geographic area. OBJECTIVE: To compare CVD and risk factors in American Indian and non-Indian populations in Montana. METHODS: Adult American Indians (n=1000) living on or near Montana's seven reservations and non-Indian (n=905) Montanans statewide were interviewed through the 1999 Behavioral Risk Factor Surveillance Survey (BRFSS). RESULTS: Indians aged > or =45 years reported a significantly higher prevalence of CVD compared to non-Indians (18% vs 10%). In persons aged 18-44 years, Indians were more likely to report hypertension (15% vs 10%), obesity (29% vs 12%), and smoking (42% vs 24%) compared to non-Indians. For persons aged > or =45 years, Indians reported higher rates of diabetes (24% vs 9%), obesity (38% vs 16%), and smoking (32% vs 13%) compared to non-Indians. Non-Indians aged > or =45 years reported having been diagnosed with high cholesterol more frequently than did Indians (32% vs 24%). CONCLUSIONS: Both Indians and non-Indians in Montana reported a substantial burden of CVD. The CVD risk patterns differ in the two populations. Prevention programs should be tailored to the risk burdens in these communities with particular emphasis on smoking cessation and the prevention of obesity.

Adolescent↗
PubMedDate not supplied

Training for rural prehospital providers: a retrospective analysis from Montana.

OBJECTIVE: This paper provides a retrospective analysis of training methods used by rural Montana's prehospital care providers. Drawn from both published and unpublished sources and spanning the past 25 years, it examines the origins of training in this vast rural state and aims to shed light on successful, nontraditional training delivery methods currently being used. Because volunteer personnel traditionally provide prehospital emergency care in rural areas, development and implementation of effective training programs are generally considered important to helping these practitioners maintain the knowledge and skills they use in their lifesaving work. METHODS: Five different training programs used in Montana were assessed: Train-the-trainer; Local Cluster with videotape and guided practicals; Circuit Rider training with interactive videodisc; interactive video teleconference; and the TENKIDS statewide electronic infrastructure. Strengths and weaknesses of each training program were analyzed. RESULTS: Traditional train-the-trainer methods make training readily accessible, but it is difficult to ensure consistent, top-quality delivery of the materials. Electronic training is popular and effective but can be expensive and difficult to develop and distribute. Establishing an electronic infrastructure allows for easy delivery of high-quality electronic instruction. However, it remains somewhat expensive to develop. CONCLUSIONS: Efforts to improve capabilities of instructors in Montana have had varied success. Studies illustrate that remote training methods that train the providers directly are effective and popular. The application of electronic media and other distance learning techniques have demonstrated a positive impact on the frequency, quality, and standardization of training for volunteer prehospital EMTs.

Educational Measurement↗
PubMed2004

Importance of log size on host selection and reproductive success of Ips pini (Coleoptera: Scolytidae) in ponderosa pine slash of northern Arizona and western Montana.

Pine engraver, Ips pini (Say), often use thinning slash, and their populations are known to be influenced by the condition of this material. In our study, we evaluated the importance of three log diameters (5, 10, and 20 cm) and three lengths (60,120, and 240 cm) on various parameters of bark beetle host attack, development, and emergence. Evaluation of slash colonization in northern Arizona (near Flagstaff) and western Montana (near Missoula) over several years, during both spring and summer reproductive periods, indicated that the size of material selected by pine engraver differed by state, year, and season. However, within individual trials and over all trials, a trend in preference for larger diameter logs was apparent, whereas log length was of little effect. When evaluating only attacked logs, results indicated that the apparent preference for larger logs was not followed by significantly greater reproductive performance in the larger log sizes. Log origin was tested as a potential factor for the difference in attack densities between Arizona and Montana trials. Although male beetles in Montana and female beetles in Arizona seemed to distinguish between local-source and foreign-source logs during the attack phase, the gallery development and reproductive success of egg, larval, and new adult stages were not significantly different. Ultimately, differences among the trials both in host size selection and in reproductive success within attacked logs were closely tied to the overall population density of adult beetles. The implications of these findings for resource managers are discussed.

Animals↗
PubMed2005

The Montana model: integrated primary care and behavioral health in a family practice residency program.

To address the local health care needs of both patients and primary care providers in Montana, an integrated primary care and behavioral health family practice clinic was developed. In this paper we describe our experience with integrating mental health and substance abuse services into a primary care setting (a community health center) while simultaneously teaching family practice physicians to take the lead in providing these services. The Deering Community Health Center in Billings, Montana, is a Federally Qualified Health Center serving a largely low-income patient population. The medical care at the clinic is provided primarily by the faculty and residents of the Montana Family Medicine Residency. The teaching model was founded on the belief that improved care will result when physicians have increased comfort with, and are able to enjoy the challenges of, patients with mental illnesses. The enhanced longitudinal curriculum incorporates mental health across the 3 years of the family practice residency. Unique characteristics of this model include staffing and the concurrent delivery of a high volume mental health service while teaching family practice resident physicians and the faculty to integrate this competency into their primary care practices.

Community Medicine↗
PubMedDate not supplied

Improving access to quality diabetes education in a rural state: the Montana Quality Diabetes Education Initiative.

PURPOSE: Diabetes self-management education (DSME) is an integral component of diabetes care; however, skilled educators and recognized programs are not uniformly available in rural communities. METHODS: To increase access to quality DSME, the Montana Diabetes Control Program and the Montana chapter of the American Association of Diabetes Educators developed a mentoring program with 3 levels: basic, intermediate, and advanced. All participants were assisted by a volunteer certified diabetes educator (CDE) mentor. In addition, the program provided technical support for recognition through the American Diabetes Association and the Indian Health Service. RESULTS: From 2000 to 2005, 90 individuals participated; 76% were nurses and 21% dietitians. Twenty-seven of the 90 enrollees (30%) completed their structured option, and 13 achieved CDE certification. Most provided services in frontier counties (66%). Statewide, the number of CDEs in Montana increased 46% from 52 in 2000 to 76 in 2005. Twenty-five of the 30 facilities that received technical assistance achieved recognition. Statewide, the number of recognized education programs increased from 2 in 2000 to 22 in 2005. Twelve (55%) of these programs were located in frontier counties. CONCLUSIONS: Mentoring and technical support is an effective method to increase personnel skills for DSME and to increase access to quality education programs in rural areas.

Diabetes Mellitus↗