Alternative therapies: a common practice among men and women living with HIV

Effect of the anti-retroviral drug, rilpivirine, on human subcutaneous adipose cells and its nutritional management using quercetin

Rilpivirine, a recently developed drug of choice for initial treatment of HIV-1 infection, can greatly reduce HIV-related inflammation, but in turn, may be associated with adverse secondary effects, including disturbances in lipid metabolism and ultimately in adipose tissue distribution and function. In recent years, research findings on the benefits of anti-oxidant foods and supplements have been employed in counter-acting both oxidative stress as well as inflammation in order to reduce the adverse side effects of anti-retroviral therapy. One such natural flavonoid which possesses anti-inflammatory and anti-oxidative properties is quercetin. This study investigated the effect of quercetin in overcoming the side effects incurred due to rilpivirine administration. The results show substantial reduction in the accumulation of triglyceride levels in a dose- and time-dependent manner for adipose cells treated with either rilpivirine or quercetin alone and in combination, as evidenced by morphological pictures and quantitative measurement of triglycerides throughout the differentiation process. Levels of inflammatory markers such as resistin and IL-8 were increased as compared to the untreated cells. No significant changes in leptin were observed on treatment of adipose cells with rilpivirine alone and its levels were almost comparable to control. Levels of oxidative markers like superoxide dismutase, catalase, and glutathione were also decreased. Treatment with quercetin showed a decrease in the inflammatory status and an increase in the oxidative status of adipose cells, thereby exhibiting its anti-inflammatory and anti-oxidative properties. However, further assessment of lipid metabolism and adipose tissue function in patients administered with rilpivirine-based regimes is advisable considering that totally neutral effects of rilpivirine on lipid homeostasis cannot be anticipated from the current study in vitro. It is concluded that rilpivirine causes an anti-adipogenic and pro-inflammatory response pattern but only at high concentrations, whereas quercetin has been observed to decrease inflammation and restore the levels of anti-oxidant enzymes.

Pharmacokinetic enhancers (cobicistat/ritonavir) and the potential for drug-drug interactions

BACKGROUND

The potential for clinically significant drug interactions (CSDIs) for patients taking ritonavir and cobicistat is high because of their powerful pharmacokinetic effect on the cytochrome P450 (CYP) enzyme system, most notably their inhibitory effect on CYP3A4.

AIMS

An audit was conducted to measure and correct for patients exposed to potentially dangerous drug interactions.

METHODS

Two hundred individuals attending a regional specialist human immunodeficiency virus (HIV) clinic between June and September 2014 who were receiving the pharmacokinetic enhancers ritonavir or cobicistat were interviewed to determine a medication history including medications prescribed by their general practitioner (GP), over-the-counter (OTC) medicines, herbal remedies and recreational drugs.

RESULTS

Of the 200 patients interviewed, patients were aged 23-76 years (median age was 41.5), 64% were female and 173 reported taking a co-medication. Sixty-six (33%) were taking a medication or medications which had no significant drug interaction associated with them. One hundred and seven (54%) were taking one or more medications with a CSDI which could require a dose adjustment, close monitoring or an absolute contraindication. Only 27% of these co-medications were identified in the normal course of an outpatient visit outside of the audit.

CONCLUSION

A detailed medication history is often lacking at routine HIV follow-up visits. There is a significant risk of CSDIs in this cohort. Awareness of physicians and pharmacists needs to be raised. Implementation of several innovative strategies to capture the most accurate medication histories and avoid drug toxicities now employed in this cohort is also discussed here.

The chiropractic profession: a scoping review of utilization rates, reasons for seeking care, patient profiles, and care provided

Background

Previous research has investigated utilization rates, who sees chiropractors, for what reasons, and the type of care that chiropractors provide. However, these studies have not been comprehensively synthesized. We aimed to give a global overview by summarizing the current literature on the utilization of chiropractic services, reasons for seeking care, patient profiles, and assessment and treatment provided.

Methods

Systematic searches were conducted in MEDLINE, CINAHL, and Index to Chiropractic Literature using keywords and subject headings (MeSH or ChiroSH terms) from database inception to January 2016. Eligible studies: 1) were published in English or French; 2) were case series, descriptive, cross-sectional, or cohort studies; 3) described patients receiving chiropractic services; and 4) reported on the following theme(s): utilization rates of chiropractic services; reasons for attending chiropractic care; profiles of chiropractic patients; or, types of chiropractic services provided. Paired reviewers independently screened all citations and data were extracted from eligible studies. We provided descriptive numerical analysis, e.g. identifying the median rate and interquartile range (e.g., chiropractic utilization rate) stratified by study population or condition.

Results

The literature search retrieved 14,149 articles; 328 studies (reported in 337 articles) were relevant and reported on chiropractic utilization (245 studies), reason for attending chiropractic care (85 studies), patient demographics (130 studies), and assessment and treatment provided (34 studies). Globally, the median 12-month utilization of chiropractic services was 9.1% (interquartile range (IQR): 6.7%-13.1%) and remained stable between 1980 and 2015. Most patients consulting chiropractors were female (57.0%, IQR: 53.2%-60.0%) with a median age of 43.4 years (IQR: 39.6-48.0), and were employed (median: 77.3%, IQR: 70.3%-85.0%). The most common reported reasons for people attending chiropractic care were (median) low back pain (49.7%, IQR: 43.0%-60.2%), neck pain (22.5%, IQR: 16.3%-24.5%), and extremity problems (10.0%, IQR: 4.3%-22.0%). The most common treatment provided by chiropractors included (median) spinal manipulation (79.3%, IQR: 55.4%-91.3%), soft-tissue therapy (35.1%, IQR: 16.5%-52.0%), and formal patient education (31.3%, IQR: 22.6%-65.0%).

Conclusions

This comprehensive overview on the world-wide state of the chiropractic profession documented trends in the literature over the last four decades. The findings support the diverse nature of chiropractic practice, although common trends emerged.

Dietary supplement interactions with antiretrovirals: a systematic review

Many patients who take antiretroviral drugs also take alternative therapies including dietary supplements. Some drug-supplement combinations may result in clinically meaningful interactions. We aimed to investigate the evidence for dietary supplement interactions with antiretrovirals. A systematic review was conducted using multiple resources including PubMed, Natural Medicine Comprehensive Database, The Review of Natural Products, and Google Scholar. All human studies or case reports evaluating an interaction between a dietary supplement and an antiretroviral were selected for inclusion. Twenty-eight pharmacokinetic studies and case-series/case reports were selected for inclusion. Calcium carbonate, ferrous fumarate, some forms of ginkgo, some forms of garlic, some forms of milk thistle, St. John's wort, vitamin C, zinc sulfate, and multivitamins were all found to significantly decrease the levels of selected antiretrovirals and should be avoided in patients taking these antiretrovirals. Cat's claw and evening primrose oil were found to significantly increase the levels of antiretrovirals and patients should be monitored for adverse effects while taking these dietary supplements with antiretrovirals. This systematic review shows the importance of screening all human immunodeficiency virus patients for dietary supplement use to prevent treatment failure or adverse effects related to an interaction.

The meaning and perceived value of mind-body practices for people living with HIV: a qualitative synthesis

Mind-body practices (MBPs) are a subset of complementary medicine that represents a selection of self-care activities that may promote the health of people living with HIV (PLWH). No synthesis of qualitative research in this context, which might inform service provision and research priorities, has yet been published. A systematic search of electronic databases was conducted, identifying papers exploring the experience of MBPs in PLWH. During thematic synthesis, all text under the headings "results" or "findings" was scanned line by line, and discrete, meaningful units of text were extracted as data items. Categories were identified, and second- and third-order constructs were developed. Concerns related to control and self-management appeared in the convergence of participants' worlds with the medical world and in being pragmatic about selecting MBPs and goal setting. The themes developed suggest a desire for more holistic and person-centered care, arguably marginalized as a result of effective antiretroviral therapy.

A review of the use of complementary and alternative medicine and HIV: issues for patient care

HIV/AIDS is a chronic illness, with a range of physical symptoms and psychosocial issues. The complex health and social issues associated with living with HIV mean that people living with HIV/AIDS (PLWHA) have historically often turned to complementary and alternative medicine (CAM). This article provides an overview of the literature on HIV and CAM. Databases were searched using keywords for CAM and HIV from inception to December 2012. Articles in English and in Western countries were included; letters, commentaries, news articles, articles on specific therapies and basic science studies were excluded. Of the 282 articles identified, 94 were included. Over half reported prevalence and determinants of CAM use. Lifetime use of CAM by PLWHA ranged from 30% to 90%, with national studies suggesting CAM is used by around 55% of PLWHA, practitioner-based CAM by 15%. Vitamins, herbs, and supplements were most common, followed by prayer, meditation, and spiritual approaches. CAM use was predicted by length of time since HIV diagnosis, and a greater number of medications/symptoms, with CAM often used to address limitations or problems with antiretroviral therapy. CAM users rarely rejected conventional medicine, but a number of CAM can have potentially serious side effects or interactions with ART. CAM was used as a self-management approach, providing PLWHA with an active role in their healthcare and sense of control. Clinicians, particularly nurses, should consider discussing CAM with patients as part of patient-centered care, to encourage valuable self-management and ensure patient safety.

Potential pharmacokinetic interactions between antiretrovirals and medicinal plants used as complementary and African traditional medicines

The use of traditional/complementary/alternate medicines (TCAMs) in HIV/AIDS patients who reside in Southern Africa is quite common. Those who use TCAMs in addition to antiretroviral (ARV) treatment may be at risk of experiencing clinically significant pharmacokinetic (PK) interactions, particularly between the TCAMs and the protease inhibitors (PIs) and non-nucleoside reverse transcriptase inhibitors (NNRTIs). Mechanisms of PK interactions include alterations to the normal functioning of drug efflux transporters, such as P-gp and/or CYP isoenzymes, such a CYP3A4 that mediate the absorption and elimination of drugs in the small intestine and liver. Specific mechanisms include inhibition and activation of these proteins and induction via the pregnane X receptor (PXR). Several clinical studies and case reports involving ARV-herb PK interactions have been reported. St John's Wort, Garlic and Cat's Claw exhibited potentially significant interactions, each with a PI or NNRTI. The potential for these herbs to induce PK interactions with drugs was first identified in reports of in vitro studies. Other in vitro studies have shown that several African traditional medicinal (ATM) plants and extracts may also demonstrate PK interactions with ARVs, through effects on CYP3A4, P-gp and PXR. The most complex effects were exhibited by Hypoxis hemerocallidea, Sutherlandia frutescens, Cyphostemma hildebrandtii, Acacia nilotica, Agauria salicifolia and Elaeodendron buchananii. Despite a high incidence of HIV/AIDs in the African region, only one clinical study, between efavirenz and Hypoxis hemerocallidea has been conducted. However, several issues/concerns still remain to be addressed and thus more studies on ATMs are warranted in order for more meaningful data to be generated and the true potential for such interactions to be determined.

Perceived stress levels among HIV/AIDS-infected mothers: the role of over-the-counter products

The purpose of this study was to identify correlates of perceived stress levels among 49 HIV/AIDS-infected mothers enrolled in a social services agency that provides HIV/AIDS support services in North Carolina. The author found in an Ordinary Least Squares regression analysis that the CD4 t-cell count, receipt of advice or support from church pastor, annual household income, and employed were all negatively related to seropositive mothers' perceived stress scores. Conversely, the need to have borrowed money from family members or friends to help pay for over-the-counter products like nutritional drinks, vitamins, or minerals was found to be positively related to these scores. The accessibility of these over-the-counter products could not only help to lower seropositive mothers' perceived stress levels but also potentially improve the functioning of their body's immune system. Implications for the Medicaid Program's prescription drug policy that excludes these over-the-counter products and prescription drug representatives are discussed.

Prevalence and factors associated with traditional herbal medicine use among patients on highly active antiretroviral therapy in Uganda

Background

In Africa, herbal medicines are often used as primary treatment for Human immunodeficiency virus (HIV) related problems. Concurrent use of traditional herbal medicines (THM) with antiretroviral drugs (ARVs) is widespread among HIV infected patients. However, the extent of THM use is not known in most settings in Sub-Saharan Africa. This study aimed at determining the prevalence and factors associated with THM use among HIV infected patients on highly active antiretroviral therapy (HAART) attending The AIDS Support Organization (TASO) in Uganda. TASO is a non-governmental organization devoted to offering HIV/AIDS care and treatment services in the population.

Methods

This was a cross-sectional study carried out in two TASO treatment centres in Uganda among 401 randomly selected eligible participants. We included participants who were 18 years and above, were enrolled on HAART, and consented to participate in the study. Data was collected using an interviewer-administered semi-structured questionnaire. THM use referred to someone who had ever used or was currently using herbal medicine while on highly active antiretroviral therapy (HAART) by the time of the study. Data was captured in Epi-data version 3.1 and exported to STATA version 9.0 for analysis.

Results

The prevalence of THM use was 33.7%. Patients on HAART for < 4 years were more likely to use THM (OR = 5.98, 95% CI 1.13 - 31.73) as well as those who experienced HAART side effects (OR = 3.66, 95% CI: 1.15 - 11.68). Older patients (≥39 years) were less likely to use THM (OR = 0.26 95% CI: 0.08 - 0.83). Participants with HAART adherence levels > 95% were less likely to use THM (OR = 0.09, 95% CI 0.01 - 0.65).

Conclusion

The prevalence of THM use among participants on HAART was high. This raises clinical and pharmacological concerns that need attention by the health care service providers.

[Use of herbal remedies among HIV-infected patients: patterns and correlates]

BACKGROUND AND OBJECTIVE

To evaluate the prevalence and patterns of use of herbal remedies among HIV-infected patients, and to identify potential health risks and correlates associated with the use of these products.

PATIENTS AND METHODS

Cross-sectional survey including 1000 HIV-infected outpatients in Barcelona. Participants completed a questionnaire on the use of herbal remedies and other types of complementary treatments within the previous year as well as on sociodemographic and clinical characteristics. Herbal users' questionnaires were scrutinized for potential adverse effects and drug interactions with antiretroviral treatment. Correlates of use of herbal remedies were evaluated through logistic regression analyses.

RESULTS

One third of patients (n=355) had used herbal remedies, but doctors were informed about such a use by only 69 (19.4%) herbal users. Potential health problems were identified in 193 (54.4%) cases. Herbal remedy use was related to a history of ever discussing complementary and alternative medicine use with the physician (OR: 3.12; 95% CI: 2.30-4.23), having a secondary-school or higher education (OR: 2.63; 95% CI: 1.78-3.88), and perception of complementary therapies as effective (OR: 2.28; 95% CI: 1.18-4.41). Other factors were non-Caucasian ethnicity (OR: 1.65; 95% CI: 1.07-2.56) and the presence of non-HIV-related symptoms (OR: 1.68; 95% CI: 1.24-2.28).

CONCLUSIONS

Herbal remedy use is common among HIV-infected patients. HIV caregivers and patients should be sensitized to potential risks and the use of these remedies should be routinely monitored in clinical practice.

HIV symptoms and health-related quality of life prior to initiation of HAART in a sample of HIV-positive South Africans

This study investigates the relationship between current symptom status (no symptoms vs. symptoms present) and dimensions of health-related quality of life and overall quality of life (QoL) (poor vs. good) of 612 people living with HIV, just prior to initiating highly active antiretroviral therapy at three public hospitals in KwaZulu-Natal, South Africa. The mean number of symptoms reported on the day of interview was 8.4. Experiencing symptoms was most reported by patients in receipt of a disability grant, patients who did not have enough money to meet basic needs, who experienced negative feelings less, who had prayed in the last 6 months and who reported better QoL. Higher QoL was in turn associated with experiencing negative feelings less, praying, receiving a disability grant and having enough money to meet basic needs. Physical health and independence were important predictors of higher QoL for patients both with and without symptoms. Psychological health and spirituality may however mediate the effects of HIV symptoms and socioeconomic stressors.

Reasons, perceived efficacy, and factors associated with complementary and alternative medicine use among Malaysian patients with HIV/AIDS

OBJECTIVES

The primary objective of this study was to evaluate the pattern of use, reasons for use, and perceived effect of complementary and alternative medicine (CAM), accompanied by identification and comparison of the factors that are potentially associated with CAM use.

DESIGN

This cross-sectional study was carried out in 325 randomly sampled patients with human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS), at HIV/AIDS referral clinics in the Hospital Sungai Buloh, Malaysia. Simple random sampling was used, where randomization was done using patients' medical record numbers.

SUBJECTS AND METHODS

Semistructured face-to-face interviews were conducted using 38 questions pertaining to type, pattern, perceived efficacy, adverse effects, and influential factors associated with CAM use. In addition, CD4 count and viral load readings were recorded.

RESULTS

Of 325 randomly sampled patients with HIV/AIDS, 254 of them were using some forms of CAM, resulting in a utilization rate of 78.2%. Vitamins and supplements (52.6%), herbal products (33.8%), and massage (16.6%) were the top three most frequently used CAM modalities. Sociodemographic factors including education level (p = 0.021, r(s) = 0.148), monthly income (p = 0.001, r(s) = 0.260), and family history of CAM use (p = 0.001, r(s) = 0.231) were significantly associated and positively correlated with CAM use. However, the majority of these patients (68%) did not disclose CAM use to health care professionals. About half of those who rated their health as good or very good perceived it as a result of CAM use.

CONCLUSIONS

This study confirmed the range of 30%-100% CAM use among individuals infected with HIV/AIDS. Although, on the one hand some types of CAM reduced viral load and enhanced the immune system, on the other hand some forms of CAM produced a detrimental effect on the virological suppression, opening this platform to more research and investigation in order to optimize the use of CAM among patients with HIV/AIDS.

Use of complementary and alternative medicine for treatment among African-Americans: a multivariate analysis

BACKGROUND

The use of complementary and alternative medicine (CAM) is substantial among African-Americans; however, research on characteristics of African-Americans who use CAM to treat specific conditions is scarce.

OBJECTIVE

To determine what predisposing, enabling, need, and disease-state factors are related to CAM use for treatment among a nationally representative sample of African-Americans.

METHODS

A cross-sectional study design was employed using the 2002 National Health Interview Survey (NHIS). A nationwide representative sample of adult (> or =18 years) African-Americans who used CAM in the past 12 months (n=16,113,651 weighted; n=2,952 unweighted) was included. The Andersen Health Care Utilization Model served as the framework with CAM use for treatment as the main outcome measure. Independent variables included the following: predisposing (eg, age, gender, and education); enabling (eg, income, employment, and access to care); need (eg, health status, physician visits, and prescription medication use); and disease state (ie, most prevalent conditions among African-Americans) factors. Multivariate logistic regression was used to address the study objective.

RESULTS

Approximately 1 in 5 (20.2%) who used CAM in the past 12 months used CAM to treat a specific condition. Ten of the 15 CAM modalities were used primarily for treatment by African-Americans. CAM for treatment was significantly (P<.05) associated with the following factors: graduate education, smaller family size, higher income, region (northeast, midwest, west more likely than south), depression/anxiety, more physician visits, less likely to engage in preventive care, more frequent exercise behavior, more activities of daily living (ADL) limitations, and neck pain.

CONCLUSIONS

Twenty percent of African-Americans who used CAM in the past year were treating a specific condition. Alternative medical systems, manipulative and body-based therapies, and folk medicine, prayer, biofeedback, and energy/Reiki were used most often. Health care professionals should routinely ask patients about the use of CAM, but when encountering African-Americans, there may be a number of factors that may serve as cues for further inquiry.

Glove use and the HIV positive massage therapy client

Massage therapy is often used to treat stress, and other symptoms of HIV/AIDS. Massage therapy standards of practice require the use of gloves only when contact with blood and bodily fluids is expected. Health care professionals often mistrust universal precautions and use gloves when their use is not indicated, especially when dealing with HIV positive clients. This case report explored the effects of un-indicated glove use on stress levels, satisfaction with treatment, perception of the therapist, and perceived stigma during a massage therapy treatment. In this case, gloved treatments were only 80% as effective at reducing stress as ungloved treatments. No difference was found in sense of stigma, perception of the therapist, or overall satisfaction in ungloved compared to gloved treatments. Suggestions for future considerations and additional research are made.

Predictors of complementary/alternative medicine use and intensity of use among men with HIV infection from two geographic areas in the United States

This descriptive, cross-sectional study explored the factors associated with frequency and intensity of complementary/alternative medicine (CAM) use in 301 HIV-infected men from southern California (n=75) and northern Florida/southern Georgia (n=226). Logistic regression analysis was conducted to identify which demographic, biomedical, psychosocial, and health behavior variables (risk and health-promoting behaviors) were predictors of CAM use and intensity of use. The majority (69%) of participants reported CAM use. The types of CAM most frequently cited were dietary supplements (71%) and spiritual therapies (66%). Odds of CAM use increased with more depressive symptoms and more health-promoting behaviors. The odds of CAM use intensity increased with greater symptom frequency and more health-promoting behaviors. Living in California was predictive of both use frequency and intensity of CAM use. High levels of CAM use should alert health care providers to assess CAM use and to incorporate CAM-related patient education into their clinical practices.

Massage therapy for people with HIV/AIDS

BACKGROUND

Infection with human immunodeficency virus (HIV) and acquired immunodeficency syndrome (AIDS) is a pandemic that has affected millions of people globally. Although major research and clinical initiatives are addressing prevention and cure strategies, issues of quality of life for survivors have received less attention. Massage therapy is proposed to have a positive effect on quality of life and may also have a positive effect on immune function through stress mediation.

OBJECTIVES

The objective of this systematic review was to examine the safety and effectiveness of massage therapy on quality of life, pain and immune system parameters in people living with HIV/AIDS.

SEARCH STRATEGY

A comprehensive search strategy was devised incorporating appropriate terms for HIV/AIDS, randomised controlled trials (RCTs), massage therapy and the pertinent measures of benefit. All electronic databases identified were searched in November 2008, including Cochrane Group Trials Register, Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, EMBASE, SCIENCE CITATION INDEX, AIDSLINE, AIDSearch, CINAHL, HEALTHSTAR, PsycLIT, AMED, Current Contents, AMI, NLM GATEWAY, LILACS, IndMed, SOCIOFILE, SCI, SSCI, ERIC and DAI. We also reviewed relevant published and unpublished conference abstracts and proceedings and scrutinised reference lists from pertinent journals. There were no language or date restrictions.

SELECTION CRITERIA

Studies were identified by two reviewers based on trial design (RCTs) and participants (ie, people of any age with HIV/AIDS, at any stage of the disease) who had undergone an intervention that included massage therapy for the identified aims of improving quality of life and activity and participation levels, improving immune function, reducing pain and improving other physiological or psychological impairments.

DATA COLLECTION AND ANALYSIS

Two reviewers independently identified included studies and extracted relevant data. Two other reviewers independently reviewed the included studies for risk of bias. All data and risk of bias judgements were entered into Revman (v5) and meta-analyses were conducted where appropriate.

MAIN RESULTS

Twelve papers were identified, from which four were included. The remaining eight papers were excluded predominantly due to inappropriate methodology. The four included studies were highly clinically heterogenous, investigating a range of age groups (ie, children, adolescents and adults) across the disease spectrum from early HIV through late-stage AIDS. The settings were either community or palliative care, and the outcome measures were a combination of quality of life and immunological function. The trials were judged to be at moderate risk of bias mostly because of incomplete reporting. For quality of life measures, the studies reported that massage therapy in combination with other modalities, such as meditation and stress reduction, are superior to massage therapy alone or to the other modalities alone. The quality of life domains with significant effect sizes included self-reported reduced use of health care resources, improvement in self-perceived spiritual quality of life and improvement in total quality of life scores. One study also reported positive changes in immune function, in particular CD4+ cell count and natural killer cell counts, due to massage therapy, and one study reported no difference between people given massage therapy and controls in immune parameters. Adverse or harmful effects were not well reported.

AUTHORS' CONCLUSIONS

There is some evidence to support the use of massage therapy to improve quality of life for people living with HIV/AIDS (PLWHA), particularly in combination with other stress-management modalities, and that massage therapy may have a positive effect on immunological function. The trials are small, however, and at moderate risk of bias. Further studies are needed using larger sample sizes and rigorous design/reporting before massage therapy can be strongly recommended for PLWHA.

Ginseng compounds: an update on their molecular mechanisms and medical applications

Ginseng is one of the most widely used herbal medicines and is reported to have a wide range of therapeutic and pharmacological applications. Ginsenosides, the major pharmacologically active ingredients of ginseng, appear to be responsible for most of the activities of ginseng including vasorelaxation, antioxidation, anti-inflammation and anti-cancer. Approximately 40 ginsenoside compounds have been identified. Researchers now focus on using purified individual ginsenoside to reveal the specific mechanism of functions of ginseng instead of using whole ginseng root extracts. Individual ginsenosides may have different effects in pharmacology and mechanisms due to their different chemical structures. Among them the most commonly studied ginsenosides are Rb1, Rg1, Rg3, Re, Rd and Rh1. The molecular mechanisms and medical applications of ginsenosides have attracted much attention and hundreds of papers have been published in the last few years. The general purpose of this update is to provide information of recently described effects of ginsenosides on antioxidation, vascular system, signal transduction pathways and interaction with receptors. Their therapeutic applications in animal models and humans as well as the pharmacokinetics and toxicity of ginsenosides are also discussed in this review. This review concludes with some thoughts for future directions in the further development of ginseng compounds as effective therapeutic agents.

Ginseng compounds: an update on their molecular mechanisms and medical applications

Ginseng is one of the most widely used herbal medicines and is reported to have a wide range of therapeutic and pharmacological applications. Ginsenosides, the major pharmacologically active ingredients of ginseng, appear to be responsible for most of the activities of ginseng including vasorelaxation, antioxidation, anti-inflammation and anti-cancer. Approximately 40 ginsenoside compounds have been identified. Researchers now focus on using purified individual ginsenoside to reveal the specific mechanism of functions of ginseng instead of using whole ginseng root extracts. Individual ginsenosides may have different effects in pharmacology and mechanisms due to their different chemical structures. Among them the most commonly studied ginsenosides are Rb1, Rg1, Rg3, Re, Rd and Rh1. The molecular mechanisms and medical applications of ginsenosides have attracted much attention and hundreds of papers have been published in the last few years. The general purpose of this update is to provide information of recently described effects of ginsenosides on antioxidation, vascular system, signal transduction pathways and interaction with receptors. Their therapeutic applications in animal models and humans as well as the pharmacokinetics and toxicity of ginsenosides are also discussed in this review. This review concludes with some thoughts for future directions in the further development of ginseng compounds as effective therapeutic agents.

Inhibition of HIV-1 entry by extracts derived from traditional Chinese medicinal herbal plants

Background

Highly active anti-retroviral therapy (HAART) is the current HIV/AIDS treatment modality. Despite the fact that HAART is very effective in suppressing HIV-1 replication and reducing the mortality of HIV/AIDS patients, it has become increasingly clear that HAART does not offer an ultimate cure to HIV/AIDS. The high cost of the HAART regimen has impeded its delivery to over 90% of the HIV/AIDS population in the world. This reality has urgently called for the need to develop inexpensive alternative anti-HIV/AIDS therapy. This need has further manifested by recent clinical trial failures in anti-HIV-1 vaccines and microbicides. In the current study, we characterized a panel of extracts of traditional Chinese medicinal herbal plants for their activities against HIV-1 replication.

Methods

Crude and fractionated extracts were prepared from various parts of nine traditional Chinese medicinal herbal plants in Hainan Island, China. These extracts were first screened for their anti-HIV activity and cytotoxicity in human CD4+ Jurkat cells. Then, a single-round pseudotyped HIV-luciferase reporter virus system (HIV-Luc) was used to identify potential anti-HIV mechanisms of these extracts.

Results

Two extracts, one from Euphorbiaceae, Trigonostema xyphophylloides (TXE) and one from Dipterocarpaceae, Vatica astrotricha (VAD) inhibited HIV-1 replication and syncytia formation in CD4+ Jurkat cells, and had little adverse effects on host cell proliferation and survival. TXE and VAD did not show any direct inhibitory effects on the HIV-1 RT enzymatic activity. Treatment of these two extracts during the infection significantly blocked infection of the reporter virus. However, pre-treatment of the reporter virus with the extracts and treatment of the extracts post-infection had little effects on the infectivity or gene expression of the reporter virus.

Conclusion

These results demonstrate that TXE and VAD inhibit HIV-1 replication likely by blocking HIV-1 interaction with target cells, i.e., the interaction between gp120 and CD4/CCR5 or gp120 and CD4/CXCR4 and point to the potential of developing these two extracts to be HIV-1 entry inhibitors.

Complementary and alternative medicine use among HIV-positive people: research synthesis and implications for HIV care

Use of complementary and alternative medicine (CAM) is prevalent among HIV-positive individuals despite the success of antiretroviral treatments and limited evidence of CAM's safety and efficacy. To characterize the potential impact of CAM use on HIV care, we conducted a systematic review of 40 studies of CAM use among HIV-positive people. The goals of this review are to: (1) describe the demographic, biomedical, psychosocial and health behavior correlates of CAM use; (2) characterize patient-reported reasons for CAM use; and (3) identify methodological and conceptual limitations of the reviewed studies. Findings confirm that a high proportion of HIV-positive individuals report CAM use (M=60%). Overall, CAM use is more common among HIV-positive individuals who are men who have sex with men (MSM), non-minority, better educated and less impoverished. The use of CAM is also associated with greater HIV-symptom severity and longer disease duration. HIV-positive CAM users commonly report that they use CAM to prevent or alleviate HIV-related symptoms, reduce treatment side-effects and improve quality of life. Findings regarding the association between CAM use, psychosocial adjustment and adherence to conventional HIV medications are mixed. While the reviewed studies are instrumental in describing the characteristics of HIV-positive CAM users, this literature lacks a conceptual framework to identify causal factors involved in the decision to use CAM or explain implications of CAM use for conventional HIV care. To address this concern, we propose the use of health behavior theory and discuss implications of review findings for HIV care providers.

Use of complementary and alternative medicine in inner-city persons with or at risk for HIV infection

Previous studies have shown that use of complementary and alternative medicine (CAM) is prevalent among HIV-infected persons, but have focused primarily on men who have sex with men. To determine factors associated with CAM use in an inner city population, individuals (n = 93) recruited from two established cohort studies were interviewed between October and November 2004. The interview assessed the use of dietary supplements and other CAM therapies, reasons for CAM use, and use of prescription medications. Study participants were 52% male and 47% HIV infected. Median age was 50 years, and 60% reported illicit drug use ever. CAM use during the prior 6 months was reported by 94%, with 48% reporting daily use of a dietary supplement. Vitamin C, vitamin E, and soy were used more often by HIV-infected than uninfected persons (p < 0.05). Prevention of illness was the most common reason for dietary supplement use (27%). HIV-infected persons were more likely than uninfected persons (95% versus 67%) to report use of both dietary supplements and prescription medications within the past 6 months (p < 0.001). In multivariate analysis, HIV infection (odds ratio [OR] 3.1, CI 1.3, 7.7) was the only factor associated with daily dietary supplement use whereas gender, race/ethnicity, working in the last year, homelessness, and financial comfort were not associated. CAM use among persons with or at risk for HIV infection due to drug use or high-risk heterosexual behaviors is common, and is used almost exclusively as an adjunct and not an alternative to conventional health care.

Sleep patterns and insomnia management in Korean-American older adult immigrants

AIMS

This study aimed to describe sleep patterns and insomnia management in first generation Korean-American older adult immigrants. Specifically, this research examined differences in sleep interruption factors, use of sleep promotion aids, sleep characteristics and insomnia management between men and women who are first generation Korean-American older adult immigrants.

BACKGROUND

Older adults feel that their sleep is shallow, interrupted frequently and is insufficient. If sleep changes are severe, it is difficult for older adults to maintain an awakened state during the day.

DESIGN

This was a descriptive survey study.

METHODS

The survey included a set of four questionnaires. All measures were self-administered. In the data analysis, descriptive statistics was used to analyse demographic characteristics. The chi-squared test and t-test were used to examine the differences between men and women.

RESULTS

Most subjects experienced sleep interruption (n = 43, 82.6%) and were not satisfied with their sleep (n = 42, 80.8%). A quarter of the subjects had experience with complementary/alternative therapies to manage insomnia, although 40 subjects (76.9%) wanted to use complementary/alternative therapies to manage their insomnia.

CONCLUSIONS

The study shows that first generation Korean-American older adult immigrant men and women report sleep interruptions and dissatisfaction with the quality of their sleep. Women were more likely in want of using complementary/alternative therapies for insomnia management than men. Women may have longed more for their traditional healthcare practices. The high degree of sleep disruption in this sample may relate to living in a different culture.

RELEVANCE TO CLINICAL PRACTICE

Health professionals need to assess sleep patterns and consider an array of methods including complementary/alternative therapies to manage insomnia.

Perceptions of health and self-care learning needs of outpatients with HIV/AIDS

Health promotion increases healthy behaviors, enhances health status, and decreases health care costs of chronically ill persons. As HIV has become a chronic illness, many HIV-positive persons may have health learning needs that affect their behaviors, health status, and health care costs. Health learning needs may be general or HIV specific. Social stigma may affect learning resource usage. We used Pender's Health Promotion Model and community-based health promotion principles as theoretical underpinnings for an exploratory study of perceived health and self-care learning needs, barriers, and preferred learning modalities of outpatients with HIV/AIDS. A nonrandom sample of 151 adults completed a researcher-designed self-report survey. Most (97%) expressed interest in health and self-care. Many identified multiple topics, learning barriers, and preferred learning modalities. A statistically significant difference (p=.027) was noted in communication needs of participants diagnosed with HIV versus AIDS. Findings have led to practice changes, health promotion activities, and further research.

Treatment perceptions and attitudes of older human immunodeficiency virus-infected adults

OBJECTIVE

To apply the Health Belief Model (HBM) in assessing the association of health beliefs, perceived benefits, perceived barriers, alternative therapy use, and sexual risk behaviors in relation to the treatment of human immunodeficiency virus (HIV) in a group of older HIV-infected patients.

METHODS

A convenience sample of 100 older (50 years and above) HIV-infected patients in 2 Washington, DC, clinics was enrolled. A cross-sectional methodology used structured interviews to investigate the association among antiretroviral adherence, use of alternative therapies, treatment perceptions, and risk behaviors. Student t tests were conducted to examine significant relationships between HBM perceptions and demographic characteristics. Logistic regressions were conducted to assess likelihood of antiretroviral and alternative therapy use.

RESULTS

The majority of the participants were black and had a high school education. Although participants believed that HIV was a severe disease, they did not perceive themselves to be susceptible to early progression to acquired immunodeficiency syndrome. Participants believed that antiretrovirals were beneficial, and they were not particularly burdened by perceived costs of antiretrovirals. The perceived costs (or barriers) of antiretrovirals were inversely associated with CD4 count (r=-0.25, P=.01) and positively associated with viral load (r=0.33, P < .01). Overall 21% of patients in this population indicated use of alternative therapies. Patients who tended to have a higher perception of severity of HIV and a higher perceived burden in using antiretrovirals were more likely to use alternative therapy. There was no difference in HBM perceptions among antiretroviral users and nonusers.

CONCLUSIONS

In general, the benefits of taking antiretrovirals were clear to most patients, and the same patients did not view access to antiretrovirals as a significant barrier to treatment. Many patients, although aware of the severity of HIV disease, were not seeking modifications to sexual behavior. Furthermore, the actual medication-taking behavior of these patients resulted in significant impacts to their clinical status. Study results can be applied in the development of specific interventions that are intended to decrease HIV transmission among older adults and to improve medication-taking behavior among those who are already infected with HIV.

Health promotion for women with human immunodeficiency virus or acquired immunodeficiency syndrome

PURPOSE

The purpose of this pilot study was twofold: first, to modify Stuifbergen's health promotion intervention initially developed for women with multiple sclerosis for use among women with human immunodeficiency virus or acquired immunodeficiency syndrome (HIV/AIDS) and to evaluate the feasibility of the newly modified health promotion intervention named "Put Health Into Living" (PHIL). The pilot study was completed in two phases.

DATA SOURCES

In phase I, data were derived from a literature review, a focus group of women with HIV/AIDS (n= 7), a panel of experts who reviewed the intervention for content, and three female community workers who evaluated the intervention for the context of living with HIV/AIDS, cultural relevancy, and literacy. During phase II, a pretest/posttest one-group design was used to determine the feasibility of the study methods, content, and format of the health promotion intervention among 10 women with HIV/AIDS.

CONCLUSIONS

The pilot study demonstrated the importance of a health promotion intervention for a vulnerable population. Participants verbalized the benefits of attending a health promotion program to gain knowledge and skills to promote their health. One woman said, "I have been positive for 20 years now and no one has talked to me just about my overall health." Participants indicated the PHIL intervention offered a supportive group environment, an overall health focus, and an acceptable format.

IMPLICATIONS FOR PRACTICE

Health promotion is a desirable goal for persons living with a chronic disease, and the PHIL intervention has the potential to benefit persons living with HIV/AIDS if subsequent evidence is found in further testing of the intervention.

Complementary and alternative medicine use in British Columbia—A survey of HIV positive people on antiretroviral therapy

In 2002, the British Columbia (BC) Centre for Excellence in HIV/AIDS collected final detailed data on complementary and alternative medicine (CAM) use in their HIV treatment program. This cross-sectional study of 682 participants examines types and determinants of CAM use in this program, and examines adverse effects associated with CAM use and antiretroviral therapy (ART). Among the 47% ever CAM users in the included population, vitamins/minerals (81%), meditation/yoga (36%), massage (31%), marijuana (30%), dietary supplements (24%), and herbal medicines (19%), were most commonly used. Multivariate analysis indicated CAM users were less likely to have low education (AOR=0.51), more likely to be unemployed (AOR=1.52), more likely to have been on ART longer (AOR=1.19), and more likely to experience objective, action-requiring (OA) side effects (AOR=1.45). CAM use is common. Both patients and health professionals should be aware of potential toxicities and drug interactions related to the use of CAM and HIV/AIDS treatment.

HIV/AIDS: Interactions between Natural Health Products and Antiretroviral Drugs: Pharmacokinetic and Pharmacodynamic Effects

Concurrent use of natural health products (NHPs) with antiretroviral drugs (ARVs) is widespread among human immunodeficiency virus-infected patients. This article reviews the clinical pharmacokinetic and pharmacodynamic interactions between NHPs and ARVs. Many NHPs are complex mixtures and are likely to contain organic compounds that may induce and/or inhibit drug metabolizing enzymes and drug transporters. Although the weight of evidence for the effects of certain NHPs varies and many studies of these products lack scientific rigor, it has been observed that St. John's wort clearly induces cytochrome P450 3A4 and P-glycoprotein and reduces protease inhibitor and nonnucleoside reverse-transcriptase inhibitor concentrations, thereby increasing the likelihood of therapeutic failure. Limited clinical research suggests that intake of garlic and vitamin C results in reductions in ARV concentrations. The intake of milk thistle, Echinacea species, and goldenseal inhibits cytochrome P450 enzymes in vitro and may increase ARV concentrations, but by clinically unimportant amounts. Intake of fish oil reduces ARV-induced hypertriglyceridemia without significantly affecting lopinavir concentrations. Before recommending the use of NHPs as adjuncts to ARV use, studies should first exclude significant pharmacokinetic interactions and ensure that ARV efficacy is maintained.

Challenges in translating research into practice

This paper provides a high-level summary of the literature concerning barriers to disseminating research findings about medication use into clinical practice. Various interventions targeting patients or providers are reviewed. Conceptual models for understanding the multiple barriers to dissemination are critically reviewed, and an alternative framework is proposed that considers the perspective of both providers and patients and the characteristics of treatments. Areas of further research are suggested.

The Healthy Living Project: an individually tailored, multidimensional intervention for HIV-infected persons

The NIMH Healthy Living Project (HLP), a randomized behavioral intervention trial for people living with HIV, enrolled 943 individuals, including women, heterosexual men, injection drug users, and men who have sex with men from Los Angeles, Milwaukee, New York, and San Francisco. The intervention, which is based on qualitative formative research and Ewart's Social Action Theory, addresses three interrelated aspects of living with HIV: stress and coping, transmission risk behavior, and medication adherence. Fifteen 90-minute structured sessions, divided into 3 modules of five sessions each, are delivered to individuals. Sessions are tailored to individuals within a structure that uses role-plays, problem solving, and goal setting techniques. A 'Life Project'--or overarching goal related to personal striving-provides continuity throughout sessions. Because this is an ongoing project with efficacy yet to be established, we do not report intervention outcomes. However, the intervention was designed to be useful for prevention case management, settings where repeated one-on-one contact is possible, and where a structured but highly individualized intervention approach is desired.

HIV/AIDS symptom management in Southern Africa

We describe self-reported strategies used by persons living with HIV/AIDS in Botswana, Lesotho, South Africa, and Swaziland to manage common HIV-related symptoms. A questionnaire asked participants to list three to six symptoms they had recently experienced, the care strategies they had used to make them better, where they had learned the strategy, and to rate the perceived effectiveness of the strategy. Data were collected in 2002 from 743 persons. The self-care management strategies were coded into eight categories: medications, complementary treatments, self-comforting, changing diet, seeking help, exercise, spiritual care, and daily thoughts/activities. Overall, participants reported medications as the most frequently occurring management strategy and the most effective. A very small inventory of behavioral strategies was available to participants to help them manage their HIV-related symptoms.

Patterns of marijuana use among patients with HIV/AIDS followed in a public health care setting

OBJECTIVES

To examine prevalence and patterns of smoked marijuana and perceived benefit and to assess demographic and clinical factors associated with marijuana use among HIV patients in a public health care setting.

METHODS

Participants (n = 252) were recruited via consecutive sampling in public health care clinics. Structured interviews assessed patterns of recent marijuana use, including its perceived benefit for symptom relief. Associations between marijuana use and demographic and clinical variables were examined using univariate and multivariate regression analyses.

RESULTS

Overall prevalence of smoked marijuana in the previous month was 23%. Reported benefits included relief of anxiety and/or depression (57%), improved appetite (53%), increased pleasure (33%), and relief of pain (28%). Recent use of marijuana was positively associated with severe nausea (odds ratio [OR] = 4.0, P = 0.004) and recent use of alcohol (OR = 7.5, P < 0.001) and negatively associated with being Latino (OR = 0.07, P < 0.001). No associations between marijuana use and pain symptoms were observed.

CONCLUSIONS

The findings suggest that providers be advised to assess routinely and better understand patients' "indications" for self-administration of cannabis. Given the estimated prevalence, more formal characterization of the patterns and impact of cannabis use to alleviate HIV-associated symptoms is warranted. Clinical trials of smoked and noncombustible marijuana are needed to determine the role of cannabinoids as a class of agents with potential to improve quality of life and health care outcomes among patients with HIV/AIDS.